Low-density Lipoprotein Cholesterol (low-density + lipoprotein_cholesterol)

Distribution by Scientific Domains
Distribution within Medical Sciences

Kinds of Low-density Lipoprotein Cholesterol

  • very low-density lipoprotein cholesterol

  • Terms modified by Low-density Lipoprotein Cholesterol

  • low-density lipoprotein cholesterol level

  • Selected Abstracts


    Prospective Association Between Low and High Total and Low-Density Lipoprotein Cholesterol and Coronary Heart Disease in Elderly Men

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 12 2004
    J. David Curb MD
    Objectives: To examine the relationship between total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) and the incidence of coronary heart disease (CHD) in elderly men. Design: Prospective. Setting: Population based. Participants: A sample of 2,424, Japanese-American men aged 71 to 93 was used. Measurements: Six years of data on incident fatal plus nonfatal CHD were examined. Results: Analysis revealed a significant U-shaped relationship between age-adjusted CHD rates and both TC and LDL-C. The ranges of TC and LDL-C with the lowest risk of CHD were 200 to 219 mg/dL and 120 to 139 mg/dL, respectively. As cholesterol concentrations declined and increased beyond these ranges, the risk of CHD increased. These U-shaped relationships remained significant after adjusting for age and other risk factors. Conclusion: The U-shaped associations between TC and LDL-C and CHD imply a complex relationship between lipids and CHD in late life. The results indicate that elevated lipid levels should continue to be treated in healthy elderly individuals, as they are in those who are younger, although pharmacologically lowering lipids to excessively low levels in the elderly may warrant further study, as does the contribution of subclinical frailty to the relationship of lipids to CHD risk. [source]


    Plasma triglycerides and LDL cholesterol are related in a parabolic fashion in the general population and patients with Type 2 diabetes mellitus: long-term follow-up results from the Hoorn study

    DIABETIC MEDICINE, Issue 9 2008
    M. C. G. J. Brouwers
    Abstract Aims Low-density lipoprotein cholesterol (LDL-C) levels are often fairly normal in Type 2 diabetes mellitus (DM). We anticipated that a parabolic relation between plasma triglycerides and LDL-C, as previously demonstrated in familial combined hyperlipidaemia (FCHL), might account for this phenomenon. Methods Our hypothesis was tested in 1343 subjects derived from the general population who were studied on two occasions 6 years apart (the Hoorn study). Three groups were constructed depending on plasma triglycerides: group A (individuals with both measurements below 1.5 mmol/l), group B (one measurement below and one above 1.5 mmol/l) and group C (both measurements above 1.5 mmol/l). Diabetes status was ascertained by an oral glucose tolerance test. Results In a mixed linear model, a significant, positive relation between triglycerides and LDL-C was observed for males in group A (,a = 0.5, P < 0.001) and group B (,b = 0.2, P < 0.001), whereas a significant negative relation was found for males in group C (,c = ,0.2, P = 0.003). The regression slopes did not differ between diabetic and non-diabetic subjects. Similar results were obtained for women, with the exception that the relation was not significantly negative in group C (,c = ,0.1, P = 0.4). Conclusion Plasma triglcyerides and LDL-C are related in a parabolic fashion, not only in FCHL, but also in the general population and Type 2 DM. These findings aid our interpretation of typical dyslipidaemia and the effects of treatment that are frequently observed in hypertriglyceridaemic states. [source]


    Myocardial perfusion imaging and cardiac events in a cohort of asymptomatic patients with diabetes living in southern France

    DIABETIC MEDICINE, Issue 4 2006
    A. Sultan
    Abstract Aims, To assess the association between abnormal stress myocardial perfusion imaging (MPI) and cardiac events (CE) in asymptomatic patients with diabetes and with , 1 additional risk factor. Predictors of abnormal stress MPI were also evaluated. Methods, Four hundred and forty-seven consecutive patients who underwent stress MPI were prospectively followed for 2.1 [0.5,4.1] years for the subsequent occurrence of hard CE (myocardial infarction and sudden or coronary death) and soft CE (unstable angina and ischaemic heart failure requiring hospitalization). Re-vascularization procedures performed as a result of the screening protocol were not included in the analysis. Results, Follow-up was successful in 419 of 447 patients (94%), of whom 71 had abnormal MPI at baseline. Medical therapy was intensified in all subjects and especially in those with abnormal MPI. Twenty-three patients with abnormal MPI underwent a re-vascularization procedure. CEs occurred in 14 patients, including six of 71 patients (8.5%) with abnormal MPI and eight of 348 patients (2.3%) with normal MPI (P < 0.005). Only two patients developed a hard CE and 12 a soft CE. In multivariate analysis, abnormal MPI was the strongest predictor for CEs [odds ratio (OR) (95% CI) = 5.6 (1.7,18.5)]. Low-density lipoprotein cholesterol , 3.35 mmol/l [OR (95% CI) = 7.3; 1.5,34.7] and age > median [OR (95% CI) = 6.0 (1.2,28.6)] were additional independent predictors for CE. The independent predictors for abnormal MPI were male gender, plasma triglycerides , 1.70 mmol/l, creatinine clearance < 60 ml/min and HbA1c > 8%, with male gender the strongest [OR (95% CI) = 4.0 (1.8,8.8)]. Conclusions, Asymptomatic patients with diabetes in this study had a very low hard cardiac event rate over an intermediate period. This could be explained by the effects of intervention or by the low event rate in the background population. Randomized studies of cardiac heart disease screening are required in asymptomatic subjects with diabetes to determine the effectiveness of this intervention. Diabet. Med. (2006) [source]


    High-density lipoprotein cholesterol, C-reactive protein, and prevalence and severity of coronary artery disease in 5641 consecutive patients undergoing coronary angiography

    EUROPEAN JOURNAL OF CLINICAL INVESTIGATION, Issue 6 2008
    H. F. Alber
    ABSTRACT Background, Although high-density lipoprotein cholesterol (HDL-C) and C-reactive protein (CRP) are well-established predictors for future cardiovascular events, little information is available regarding their correlation with the prevalence and severity of angiographically evaluated coronary artery disease (CAD). Material and methods,, Five thousand six hundred forty-one consecutive patients undergoing coronary angiography for the evaluation of CAD were analysed. Cardiovascular risk factors were assessed by routine blood chemistry and questionnaire. CAD severity was graded by visual estimation of lumen diameter stenosis with significant stenoses defined as lumen diameter reduction of , 70%. Coronary angiograms were graded as one-, two- or three-vessel disease, as nonsignificant CAD (lumen irregularities < 70%) or non-CAD. Results,, HDL-C (60·3 ± 18·5 vs. 51·9 ± 15·3 mg dL,1; P < 0·001) was higher and CRP was lower (0·65 ± 1·68 vs. 1·02 ± 2·38 mg dL,1; P < 0·001) in non-CAD (n = 1517) compared to overall CAD patients (n = 4124). CAD patients were older (65·2 ± 10·5 years vs. 59·9 ± 11·4 years), more often diabetics (19·2% vs. 10·6%) and hypertensives (79·2% vs. 66·0%) and included more smokers (18·8% vs. 16·5%) (all P < 0·005). Low-density lipoprotein cholesterol (124·5 ± 38·3 vs. 126·0 ± 36·3 mg dL,1; P = NS) was similar in overall CAD and non-CAD patients with more statin users (43·4% vs. 27·9%; P < 0·001) among CAD patients. Comparing non-CAD with different CAD severities using analysis of variance, results did not change substantially. In a multivariate analysis, HDL-C and CRP remained independently associated with the prevalence of CAD. In addition, HDL-C is also a potent predictor for the severity of CAD. Conclusions,, In this large consecutive patient cohort, HDL-C and CRP are independently associated with the prevalence of CAD. In this analysis, HDL-C is an even stronger predictor for CAD than some other major classical risk factors. [source]


    Comparison of high-density and low-density lipoprotein cholesterol subclasses and sizes in asian indian women with caucasian women from the framingham offspring study

    CLINICAL CARDIOLOGY, Issue 5 2005
    Narendra C. Bhalodkar M.D.
    Abstract Background: Asian Indian women have a higher rate of coronary artery disease (CAD) than do other ethnic groups, despite similar conventional risk factors and lipid profiles. Smaller high-density lipoprotein cholesterol (HDL-C) particle size is associated with reduced cardiac protection or even an increased risk of CAD. Exceptional longevity correlates better with larger HDL-C particle sizes. Hypothesis: Higherrates of CAD among Asian Indian women may partly be explained by the differenes in the prevalence of atherogenic HDL-C and low-density lipoprotein cholesterol (LDL-C) sizes and their subclass concentrations among Asian Indian women compared with Caucasian women. Methods: We measured HDL-C concentrations and sizes by nuclear magnetic resonance spectroscopy in 119 relatively healthy Asian Indian women and compared them with those of 1,752 Caucasian women from the Framingham Off spring Study (FOS). Results: Asian Indian women were significantly younger (47.9 ± 11.2 vs.51.0 ± 10.1 years, p = 0.0001), leaner (body mass index 24.0 ± 4.7 vs. 26.0 ± 5.6, p = <0.0002), less likely to be postmenopausal (32 vs. 54%, p =< 0.0001), or smoke (< 1 vs. 20%, p = < 0.0001);nevertheless, prevalence of CAD was higher in Asian Indian women (4.2 vs. 1%, p = 0.0006). Asian Indian women had similar HDL-C (53 ±13 vs. 53 ± 13 mg/dl, p = 0.99), smaller HDL-C particle size (8.9 ± 0.35 vs. 9.4 ± 0.44 nm, p = < 0.0001), highertotal cholesterol (209 ± 40 vs. 199 ± 42 mg/dl, p = 0.01), and similar triglyceride (120 ± 77 vs. 108 ± 110 mg /d, p = 0.24) levels. Low-density lipoprotein cholesterol, particle concentrations and sizes, as well as prevalence of pattern B were similar. Conclusions: Compared with the FOS, Asian Indian women have significantly smaller overall HDL particle size and similar levels of HDL-C, which may reflect impaired, reverse cholesterol transport. Total cholesterol was higher, whereas triglyceride and LDL-C levels were similar. This may partly explain the higher CAD rates in Asian Indian women. Further large scale, prospective, long-term studies are warranted. [source]


    Effect of Orlistat in Obese Patients With Heart Failure: A Pilot Study

    CONGESTIVE HEART FAILURE, Issue 3 2005
    Luís Beck-da-Silva MD
    Heart failure is the leading cause of hospitalization. Obesity is increasingly common and is a major public health problem. The aim of this study is to assess whether obese patients with heart failure can benefit from losing weight via an orlistat-assisted diet. This randomized clinical trial included obese patients with ejection fractions ,40%. Orlistat and diet counseling were compared with diet counseling alone. Twenty-one consecutive obese patients with heart failure were recruited. Significant improvement in 6-minute walk test (45.8 m; 95% confidence interval, 5.2,86.4 m; p=0.031), functional class (,0.6±0.5, p=0.014), weight loss (,8.55 kg; 95% confidence interval, ,13.0 to ,4.1 kg;p<0.001) and also significant decreases in total cholesterol (p=0.017), low-density lipoprotein cholesterol (p=0.03), and triglycerides (p=0.036) were observed in the orlistat group. Orlistat can promote significant weight loss and symptoms of relief in obese patients with heart failure, as measured by 6-minute walk test and functional capacity. The lipid profile improved. Orlistat was safe and well tolerated. [source]


    A double-blind, placebo-controlled trial of rosiglitazone for clozapine-induced glucose metabolism impairment in patients with Schizophrenia

    ACTA PSYCHIATRICA SCANDINAVICA, Issue 6 2009
    D. C. Henderson
    Objective:, The primary purpose of this 8-week double-blind, placebo-controlled trial of rosiglitazone 4 mg/day was to examine its effect on insulin sensitivity index (SI) and glucose utilization (SG) in clozapine-treated subjects with schizophrenia with insulin resistance. Method:, Eighteen subjects were randomized and accessed with a Frequently Sampled Intravenous Glucose Tolerance Test (FSIVGTT) at baseline and at week 8 to estimate SG and SI. Results:, Controlling for the baseline, comparing the rosiglitazone group with placebo group, there was a non-significant improvement in SG (0.016 ± 0.006,0.018 ± 0.008, effect size = 0.23, P = 0.05) with a trend of improvement in SI in the rosiglitazone group (4.6 ± 2.8,7.8 ± 6.7, effect size = 0.18, P = 0.08). There was a significant reduction in small low-density lipoprotein cholesterol (LDL-C) particle number (987 ± 443,694 ± 415, effect size = 0.30, P = 0.04). Conclusion:, Rosiglitazone may have a role in addressing insulin resistance and lipid abnormalities associated with clozapine. [source]


    Interpreting clinical trials of diabetic dyslipidaemia: new insights

    DIABETES OBESITY & METABOLISM, Issue 3 2009
    A. S. Wierzbicki
    Current treatment guidelines highlight the importance of aggressive lipid-modifying therapy in reducing cardiovascular risk in patients with type 2 diabetes. Statins are established as the cornerstone of dyslipidaemia management in diabetic patients, based on their efficacy in lowering levels of low-density lipoprotein cholesterol (LDL-C). However, statins fail to address the high residual cardiovascular risk in treated patients, some of which may be attributable to low HDL cholesterol (HDL-C) and elevated triglycerides and to a preponderance of small, dense LDL particles, indicating the need for further intervention. Fibrates are effective against all components of atherogenic dyslipidaemia associated with type 2 diabetes. Clinical studies, most notably the Fenofibrate Intervention and Event Lowering in Diabetes, indicate that fibrates, most likely in combination with a statin, have a secondary role in reducing cardiovascular risk in patients with type 2 diabetes, particularly in those without prior cardiovascular disease or patients with low HDL-C. Results are awaited from the ongoing Action to Control Cardiovascular Risk in Diabetes trial to fully evaluate the outcome benefits of this combination strategy. [source]


    Elevated C-reactive protein in Native Canadian children: an ominous early complication of childhood obesity

    DIABETES OBESITY & METABOLISM, Issue 5 2006
    R. Retnakaran
    Aim:, Subclinical inflammation has been proposed as a pathophysiologic mechanism linking obesity with vascular and metabolic disease. Native North American populations are experiencing high prevalence rates of both (i) childhood obesity and (ii) adult cardiovascular disease (CVD) and type 2 diabetes. Thus, we sought to determine whether subclinical inflammation is an early complication of obesity in Native children. Methods:, Serum concentrations of the inflammatory biomarker C-reactive protein (CRP) were assessed in a population-based, cross-sectional study of the Sandy Lake Oji-Cree community of Northern Ontario, Canada, involving 228 children aged 10,19 years (mean age 14.8). Results:, Median CRP in this population was 0.5 mg/l (interquartile range 0.18,1.79 mg/l). CRP levels were higher than age-matched reference data from the Third National Health and Nutrition Examination Survey (NHANES III). Importantly, fully 15.8% of the children of this community had CRP concentrations between 3 and 10 mg/l, a range that identifies adults at high risk of CVD. Moreover, increasing CRP concentration in this paediatric population was associated with an enhanced CV risk profile, consisting of increased adiposity, higher insulin resistance, worsening lipid profile (higher total cholesterol, triglycerides, low-density lipoprotein cholesterol, apolipoprotein B and total cholesterol : high-density-lipoprotein cholesterol ratio), increased leptin and decreased adiponectin. On multivariate analysis, waist circumference and interleukin-6 (IL-6) emerged as independent determinants of CRP concentration. Conclusion:, Subclinical inflammation is an early complication of childhood obesity in Native children and may foreshadow an increased burden of CVD and type 2 diabetes in the future. [source]


    Effect of a nutritional liquid supplement designed for the patient with diabetes mellitus (Glucerna SR) on the postprandial glucose state, insulin secretion and insulin sensitivity in healthy subjects

    DIABETES OBESITY & METABOLISM, Issue 3 2006
    M. González-Ortiz
    Aim:, To identify the effect of a nutritional liquid supplement designed for the patient with diabetes mellitus (Glucerna SR) in single administration on the postprandial glucose state, insulin secretion and insulin sensitivity in healthy subjects. Methods:, A randomized, single-blind, cross-over, clinical trial was carried out in 14 young, healthy, non-obese, volunteers. A basal metabolic profile, which included glucose level, insulin, total cholesterol, high-density lipoprotein and low-density lipoprotein cholesterol, triglycerides, creatinine, and uric acid, was measured. Subjects received a single administration of 300 kcal, gauged with water at 350 ml, of each of the following (at least 3 days apart): glucose 75 g, polymeric supplement (Ensure high calcium) 315 ml or Glucerna SR 323 ml. At the beginning of each administration and 30, 60, 90 and 120 min later, glucose and insulin concentrations were measured. Areas under the curve of glucose and insulin were calculated. First-phase and total insulin secretions and insulin sensitivity were also estimated. Results:, Glucose level at 120 min was significantly lower after receiving Ensure high calcium or Glucerna SR. Administration of Glucerna SR resulted in a significant reduction in the areas under the curve of glucose and insulin, as well as in total insulin secretion with a tendency to be lower in their first phase. Insulin sensitivity was increased. Conclusions:, A single administration of Glucerna SR to healthy subjects decreased the postprandial glucose and insulin states, as well as the insulin secretion; insulin sensitivity increased. [source]


    Efficacy and safety of ezetimibe co-administered with simvastatin in thiazolidinedione-treated type 2 diabetic patients

    DIABETES OBESITY & METABOLISM, Issue 1 2005
    L. M. Gaudiani
    Aim:, In patients with type 2 diabetes mellitus (T2DM), combination therapy is usually required to optimize glucose metabolism as well as to help patients achieve aggressive targets for low-density lipoprotein cholesterol (LDL-C) and other lipid parameters associated with cardiovascular risk. The thiazolidinediones (TZDs) are increasingly being used for both their blood glucose-lowering properties and their modest beneficial effects on triglycerides (TG) and high-density lipoprotein cholesterol (HDL-C). Ezetimibe, an intestinal cholesterol absorption inhibitor, has a mechanism of action that differs from that of statins, which inhibit hepatic cholesterol synthesis. We compared the lipid-modifying efficacy and safety of adding ezetimibe to simvastatin, vs. doubling the dose of simvastatin, in TZD-treated T2DM patients. Methods:, This was a randomized, double-blind, parallel group, multicentre study in T2DM patients, 30,75 years of age, who had been on a stable dose of a TZD for at least 3 months and had LDL-C > 2.6 mmol/l (100 mg/dl) prior to study entry. Other antidiabetic medications were also allowed. Following 6 weeks of open-label simvastatin 20 mg/day, patients were randomized to the addition of either blinded ezetimibe 10 mg/day (n = 104) or an additional blinded simvastatin 20 mg/day (total simvastatin 40 mg/day; n = 110) for 24 weeks. Patients were stratified according to TZD type and dose (pioglitazone 15,30 vs. 45 mg/day; rosiglitazone 2,4 vs. 8 mg/day). Results:, LDL-C was reduced more (p < 0.001) by adding ezetimibe 10 mg to simvastatin 20 mg (,20.8%) than by doubling the dose of simvastatin to 40 mg (,0.3%). Ezetimibe plus simvastatin 20 mg also produced significant incremental reductions in non-HDL-C (p < 0.001), very low-density lipoprotein cholesterol (p < 0.05) and apolipoprotein B (p < 0.001) relative to simvastatin 40 mg. There were no differences between the groups with respect to changes in TG and HDL-C levels, and both treatments were well tolerated. Conclusions:, Co-administration of ezetimibe with simvastatin, a dual inhibition treatment strategy targeting both cholesterol synthesis and absorption, is well tolerated and provides greater LDL-C-lowering efficacy than increasing the dose of simvastatin in T2DM patients taking TZDs. [source]


    Lipids and lipoprotein(a) concentrations in Pakistani patients with type 2 diabetes mellitus

    DIABETES OBESITY & METABOLISM, Issue 5 2004
    S. S. Habib
    Aim:, The aim of the present study was to analyze serum lipoprotein(a) [Lp(a)] levels in Pakistani patients with type 2 diabetes mellitus (DM) and to find correlations between clinical characteristics and dyslipidaemias in these patients. Methods:, Fasting blood samples were analyzed for Lp(a), total cholesterol, triglycerides, low-density lipoprotein cholesterol (LDL-c), high-density lipoprotein cholesterol (HDL-c), glucose and glycosylated haemoglobin (HbA1c) in 68 Pakistani patients with type 2 DM and 40 non-diabetic healthy control subjects. Results:, Lp(a) levels were significantly raised in diabetics as compared to the control group. No correlation of Lp(a) was seen with age, body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP) and fasting glucose. There was a positive correlation of BMI to SBP and DBP. There was a significant positive correlation between Lp(a) and total cholesterol and LDL-c. No correlation of Lp(a) was observed with HDL-c, triglycerides and glycosylated haemoglobin (HbA1c). Conclusion:, The present study led us to conclude that serum Lp(a) levels are significantly raised in type 2 DM and have a positive correlation with serum total and LDL-c levels. [source]


    Lipid-lowering therapy in patients with type 2 diabetes: the case for early intervention

    DIABETES/METABOLISM: RESEARCH AND REVIEWS, Issue 4 2008
    Armin Steinmetz
    Abstract Chronic complications of type 2 diabetes, in particular, macrovascular complications, confer substantial morbidity and mortality and adversely affect a patient's quality of life. Early intensive intervention to control cardiovascular risk factors is essential in clinical management. Atherogenic dyslipidaemia characterized by elevated triglycerides, a low level of high-density lipoprotein cholesterol (HDL-C), and an increase in the preponderance of small, dense low-density lipoprotein (LDL) particles, is a key modifiable risk factor for macrovascular diabetic complications. Lowering low-density lipoprotein cholesterol (LDL-C) with a statin (or the combination of statin and ezetimibe) is the main focus for reducing cardiovascular risk in patients with diabetes. However, statins fail to address the residual cardiovascular risk associated with low HDL-C. Fibrates are effective against all components of the atherogenic dyslipidaemia associated with type 2 diabetes. Secondary analyses of the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study suggest a role for early treatment with fenofibrate in improving cardiovascular risk reduction in type 2 diabetes and provide safety data supporting the use of fenofibrate in combination with a statin. Data from the FIELD study suggest that fenofibrate may also have potential to impact on microvascular diabetic complications associated with type 2 diabetes. Data are awaited from the ongoing Action to Control Cardiovascular Risk in Diabetes (ACCORD) study to evaluate the outcome benefits of combining fenofibrate with a statin in patients with type 2 diabetes. Finally, in view of divergent study results and outstanding data, assessment of the risk of the individual with type 2 diabetes is mandatory to assist clinical decision-making when initiating lipid therapy. Copyright © 2008 John Wiley & Sons, Ltd. [source]


    Prevalence and projections of diabetes and pre-diabetes in adults in Sri Lanka,Sri Lanka Diabetes, Cardiovascular Study (SLDCS)

    DIABETIC MEDICINE, Issue 9 2008
    P. Katulanda
    Abstract Aims To determine the prevalence of diabetes mellitus and pre-diabetes (impaired fasting glucose and impaired glucose tolerance) in adults in Sri Lanka. Projections for the year 2030 and factors associated with diabetes and pre-diabetes are also presented. Methods This cross-sectional study was conducted between 2005 and 2006. A nationally representative sample of 5000 adults aged , 18 years was selected by a multi-stage random cluster sampling technique. Fasting plasma glucose was tested in all participants and a 75-g oral glucose tolerance test was performed in non-diabetic subjects. Prevalence was estimated for those > 20 years of age. Results Response rate was 91% (n = 4532), males 40%, age 46.1 ± 15.1 years (mean ± standard deviation). The age,sex standardized prevalence (95% confidence interval) of diabetes for Sri Lankans aged , 20 years was 10.3% (9.4,11.2%) [males 9.8% (8.4,11.2%), females 10.9% (9.7,12.1%), P = 0.129). Thirty-six per cent (31.9,40.1%) of all diabetic subjects were previously undiagnosed. Diabetes prevalence was higher in the urban population compared with rural [16.4% (13.8,19.0%) vs. 8.7% (7.8,9.6%); P < 0.001]. The prevalence of overall, urban and rural pre-diabetes was 11.5% (10.5,12.5%), 13.6% (11.2,16.0%) and 11.0% (10.0,12.0%), respectively. Overall, 21.8% (20.5,23.1%) had some form of dysglycaemia. The projected diabetes prevalence for the year 2030 is 13.9%. Those with diabetes and pre-diabetes compared with normal glucose tolerance were older, physically inactive, frequently lived in urban areas and had a family history of diabetes. They had higher body mass index, waist circumference, waist,hip ratio, systolic/diastolic blood pressure, low-density lipoprotein cholesterol and triglycerides. Insulin was prescribed to 4.4% (2.7,6.1%) of all diabetic subjects. Conclusions One in five adults in Sri Lanka has either diabetes or pre-diabetes and one-third of those with diabetes are undiagnosed. [source]


    High HDL-cholesterol in women with rheumatoid arthritis on low-dose glucocorticoid therapy

    EUROPEAN JOURNAL OF CLINICAL INVESTIGATION, Issue 9 2008
    C. García-Gómez
    ABSTRACT Background, Dyslipidaemia has been described in non-treated rheumatoid arthritis (RA), and improves after therapy with disease modifying anti-rheumatic drugs or glucocorticoids; however, it has generally been perceived that glucocorticoids adversely affect lipid metabolism. The association of low dose glucocorticoid therapy with plasma lipid levels was evaluated in female RA patients. Materials and methods, A cross-sectional study was conducted in 78 female RA patients [mean age: 60 (12) years; mean disease duration: 13 (9) years]. Sixty-five (83%) were on glucocorticoid therapy [total equivalent mean prednisone dose: 5·1 (1·7) mg d,1]. Each patient was assessed through a self-reported questionnaire, structured interview and physical examination. Blood samples were obtained for routine biochemistry, lipid profile and haematological tests. Lipid profiles of RA patients who were and were not on glucocorticoid therapy were compared. Results, Clinical and laboratory features of the two groups of patients were similar, except for the Health Assessment Questionnaire and body mass index, which were significantly higher in the patients on glucocorticoid therapy. These patients had 14·7% higher serum high-density lipoprotein cholesterol (HDL-c) levels than untreated patients (P = 0·043), mainly at the expense of HDL2 subfraction, which was 24·4% higher (P < 0·039), whereas HDL3-c was only 7·4% higher (P = 0·219). Serum levels of glucose and total cholesterol, triglyceride, low-density lipoprotein cholesterol (LDL -c), very low-density lipoprotein cholesterol, apolipoproteins A-I and B were not increased in patients on glucocorticoid therapy. Conclusions, Low dose glucocorticoid therapy in RA patients is associated with an increase in HDL-c, without increasing LDL-c or triglyceride. These lipid changes may overall be considered favourable. [source]


    Efficacy of ezetimibe for the treatment of non-alcoholic steatohepatitis: An open-label, pilot study

    HEPATOLOGY RESEARCH, Issue 6 2010
    Masato Yoneda
    Aim:, Non-alcoholic steatohepatitis (NASH) is considered a hepatic manifestation of metabolic syndrome. However, effective drug therapy for NASH has not been established yet. In the present study, we evaluated the efficacy of 6 months of ezetimibe treatment for NASH patients with dyslipidemia for the comparison of improvement of the clinical parameters and histological alterations. Methods:, We prospectively evaluated 10 consecutive NASH patients with dyslipidemia who agreed to participate in this study. The patients were given ezetimibe (10 mg/day) for 6 months, and clinical parameters and histological alterations were comparatively evaluated before and after treatment. All the patients were given standard calorie diet (30 kcal/kg per day, carbohydrate 50,60%, fat 20,30%, protein 15,20%) and exercise counseling from 3 months before the ezetimibe treatment. Results:, The serum aspartate aminotransferase, alanine aminotransferase, ,-glutamyl transpeptidase, low-density lipoprotein cholesterol, high-sensitivity C-reactive protein and type IV collagen 7 s levels were significantly improved by the treatment with ezetimibe for 6 months. In histological observations, follow-up liver biopsies revealed that the NAS score and steatosis grade were also significantly improved. The fibrosis stage did not change significantly, but six of the 10 patients exhibited an improvement in their fibrosis stage. Conclusion:, Major clinical parameters and histological observations were significantly improved by the treatment with ezetimibe. Our pilot study demonstrated the efficacy of ezetimibe for drug therapy of NASH and may lead to a large-scale clinical trial in the future. [source]


    Effect of simplification from protease inhibitors to boosted atazanavir-based regimens in real-life conditions

    HIV MEDICINE, Issue 9 2010
    R Rubio
    Background Atazanavir (ATV) boosted with ritonavir (ATV/r) is a potent, well-tolerated, once-daily protease inhibitor (PI). Few data are available on this agent as a treatment simplification option for patients taking other PIs. Objective The aim of the study was to determine the effectiveness and safety of ATV-containing regimens in patients who have simplified their antiretroviral treatment. Methods SIMPATAZ was a multicentre, prospective, noninterventional study in patients who had undetectable HIV RNA on their current PI-containing therapy and who were switched to an ATV/r-based regimen. Patients underwent a routine physical examination, and data were collected on HIV RNA levels, CD4 cell counts, liver function, lipid parameters, adverse reactions, adherence to treatment and patient satisfaction. Results A total of 183 patients were enrolled in the study and included in the analysis (80% were male, 29% had AIDS, and 52% were coinfected with HIV and hepatitis B virus or hepatitis C virus). The median baseline CD4 count was 514 cells/,L. Median exposure to previous HIV therapy was 8 years, and 32% of patients had a history of PI failures. Lopinavir boosted with ritonavir was the most frequent PI replaced (62%) and tenofovir+lamivudine /emtricitabine the backbone most used during the study (29%). The study drug was discontinued early by 25 patients (14%), two of whom discontinued as a result of adverse events (Hodgkin lymphoma and vomiting). Two patients died (lung cancer and myocardial infarction). At month 12, 93% of the study population had an undetectable HIV RNA viral load. Hyperbilirubinaemia >3 mg/dL and increased alanine aminotransferase levels>200 IU/L were observed in 38.5% and 4.4% of patients, respectively. Median changes from baseline to month 12 in total cholesterol, triglycerides and low-density lipoprotein cholesterol were ,13 mg/dL (,7%; P<0.0001), ,19 mg/dL (,13%; P<0.0001) and ,7 mg/dL (,6%; P=0.021), respectively. Conclusions In a real-world setting, switching from other PIs to ATV/r is a well-tolerated and safe option for improving the lipid profile and for retaining virological response in controlled pretreated patients. [source]


    Serum lipid profile in highly active antiretroviral therapy-naïve HIV-infected patients in Cameroon: a case,control study

    HIV MEDICINE, Issue 6 2010
    Nf Nguemaïm
    Background HIV status has commonly been found to affect the serum lipid profile. Objectives The aim of this study was to determine the effect of HIV infection on lipid metabolism; such information may be used to improve the management of HIV-infected patients. Methods Samples were collected from December 2005 to May 2006 at Yaounde University Teaching Hospital, Yaounde, Cameroon. Lipid parameters were obtained using colorimetric enzyme assays, while low-density lipoprotein cholesterol (LDLC) values were calculated using the formula of Friedewald et al. (1972) and atherogenicity index by total cholesterol (TC)/high-density lipoprotein cholesterol (HDLC) and LDLC/HDLC ratios. Results HIV infection was most prevalent in subjects aged 31 to 49 years. Most of the HIV-positive patients belonged to Centers for Disease Control and Prevention categories B (43.0%) and C (30.23%). Compared with control subjects, patients with CD4 counts<50 cells/,L had significantly lower TC (P<0.0001) and LDLC (P<0.0001) but significantly higher triglyceride (TG) values (P<0.001) and a higher atherogenicity index for TC/HDLC (P<0.01) and HDLC/LDLC (P=0.02); patients with CD4 counts of 50,199 cells/,L had significantly lower TC (P<0.001) and significantly higher TG values (P<0.001); patients with CD4 counts of 200,350 cells/,L had significantly higher TG (P=0.003) and a higher atherogenicity index for TC/HDLC (P<0.0002) and HDLC/LDLC (P=0.04); and those with CD4 counts >350 cells/,L had a higher atherogenicity index for TC/HDLC (P<0.0001) and HDLC/LDLC (P<0.001). HDLC was significantly lower in HIV-positive patients irrespective of the CD4 cell count. Lipid parameters were also influenced by the presence of opportunistic infections (OIs). Conclusion HIV infection is associated with dyslipidaemia, and becomes increasingly debilitating as immunodeficiency progresses. HDLC was found to be lower than in controls in the early stages of HIV infection, while TG and the atherogenicity index increased and TC and LDLC decreased in the advanced stages of immunodeficiency. [source]


    Increased serum lipids are associated with higher CD4 lymphocyte count in HIV-infected women

    HIV MEDICINE, Issue 7 2006
    M Floris-Moore
    Objective Highly active antiretroviral therapy (HAART) has been associated with dyslipidaemia; however, the roles of immune status and non-HIV-disease risk factors remain unclear. Methods A cross-sectional analysis of fasting lipids was carried out for 231 women, of whom 132 were HIV-infected and 99 were uninfected. The concentrations of total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides, and apolipoprotein B (apo B) were measured. CD4 lymphocyte count, hepatitis C status, demographics, diet, and anthropometrics were also assessed. Results A total of 132 women were HIV-infected [30 were antiretroviral-naive, 68 were on protease inhibitors (PIs), and 34 were on non-PI HAART]. HIV infection was associated with higher triglycerides, lower HDL-C, and, among obese women, higher total cholesterol and LDL-C. Non-PI and PI HAART were each independently associated with higher total cholesterol, LDL-C, and apo B, compared with being ART-naive. Among HIV-infected women, after adjustment for HAART use, women with a CD4 lymphocyte count,500 cells/,L had total cholesterol 41.8 mg/dL (P=0.002) and LDL-C 28.8 mg/dL (P=0.01) higher, on average, than women with a CD4 count <200 cells/,L. Women with a CD4 count of 200,499 cells/,L had total cholesterol 26.31 mg/dL higher, on average, than those with a CD4 count <200 cells/,L (P=0.04), although differences in LDL-C did not reach significance (15.51 mg/dL; P=0.12). A higher CD4 count was also associated with higher apo B (P<0.001). Active hepatitis C infection was associated with lower total cholesterol, LDL-C, triglycerides, and apo B. Conclusions Higher CD4 lymphocyte counts were associated with higher lipid levels, suggesting that immune competence may independently affect the dyslipidaemia seen in the HAART era. In addition, it is important that hepatitis C status be assessed in studies of dyslipidaemia in the HIV-infected population. [source]


    Plasma lipid concentrations after 1.5 years of exposure to nevirapine or efavirenz together with stavudine and lamivudine

    HIV MEDICINE, Issue 6 2006
    F Van Leth
    Objectives To assess long-term changes in lipids and lipoproteins concentrations associated with exposure to non-nucleoside reverse transcriptase inhibitors. Methods Long-term analysis of plasma lipid concentrations was performed in patients starting first-line antiretroviral therapy with stavudine (d4T) and lamivudine, and either nevirapine or efavirenz. Results Concentrations of total cholesterol, low-density lipoprotein cholesterol and triglycerides continued to increase, while high-density lipoprotein cholesterol showed a slight decrease compared with earlier reported increases after 48 weeks. Conclusions Changes in body fat distribution expected to occur with continued exposure to d4T could offer a potential explanation for these findings. [source]


    Safety and efficacy of ezetimibe monotherapy in 1624 primary hypercholesterolaemic patients for up to 2 years

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 9 2008
    C. A. Dujovne
    Summary Aims:, This report examined the safety and efficacy of treatment for up to 2 years with the cholesterol absorption inhibitor, ezetimibe (EZE). Methods:, Two identical, randomised, double-blind trials (starting with 827 and 892 patients), evaluated the efficacy and safety of EZE 10 mg/day vs. placebo for 12 weeks in patients with primary hypercholesterolaemia [low-density lipoprotein cholesterol (LDL-C) 3.3,5.1 mmol/l]. Upon completion of these base studies, patients were offered a 2-year, open-label extension study. Adverse event (AE) reports for EZE monotherapy-treated patients were summarised for 3-month intervals to allow for comparison with the placebo group of the 3-month base studies. The primary end-point for this analysis was the evaluation of the long-term safety and tolerability of EZE 10 mg monotherapy dosed daily for up to 24 months. Results:, The incidences of new AEs, treatment-related (TR) AEs, serious AEs (SAEs), TRSAEs and discontinuations as a result of AEs during any 3-month interval were comparable with the respective observations in the placebo group of the base studies. The incidences of AEs, TRAEs, SAEs, TRSAEs and discontinuations as a result of AEs decreased in almost every interval compared with earlier intervals throughout the 2-year study. In addition, the incidences of , 3-fold consecutive elevations of liver transaminases (0.7%) or , 10-fold increases in creatine phosphokinase (0.4%) for the entire 2-year treatment period were comparable with those of the placebo group (0.7% and 0.2% respectively). LDL-C reductions of ,18% were maintained throughout the study. Conclusions:, Compared with placebo, treatment with EZE for up to 2 years in 1624 patients showed no evidence of increased incidence of AEs with increased treatment duration, while showing sustained effects on LDL-C reduction. [source]


    Insulin resistance phenotypes and coronary artery disease in a native Pakistani cohort

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 5 2008
    A. S. Wierzbicki
    Summary Objective:, To determine the relationship between insulin resistance (IR) and atheroma burden in Pakistanis. Methods:, A prospective case,control study of 400 patients selected for the presence/absence of angiographic disease. Coronary atheroma burden was quantified and IR and cardiovascular risk factors were measured. Results:, The patients were divided into two groups by QuickI score. Waist circumference (90 ± 10 vs. 90 ± 9 cm; p = 0.7) was similar but the groups differed in body mass index (26.5 ± 3.7 vs. 24.2 ± 3.5 kg/m2; p < 0.001) and waist:hip ratio (0.94 ± 0.09 vs. 0.90 ± 0.06; p < 0.001). Lipid parameters showed similar high-density lipoprotein cholesterol (HDL-C) (0.77 ± 0.23 vs. 0.82 ± 0.22 mmol/l; p = 0.1) differences in triglycerides [1.32 (0.08,3.98) vs. 1.12 (0.37,3.61) mmol/l; p = 0.01], but no difference in low-density lipoprotein cholesterol (LDL-C) (2.75 ± 1.00 vs. 2.90 ± 0.94 mmol/l; p = 0.14). In insulin-resistant patients C-reactive protein (CRP) [6.8 (0.3,175.1) vs. 3.9 (0.2,57.9) mg/l: p < 0.001], sialic acid (82 ± 14 vs. 77 ± 15 mg/l; p < 0.001) aspartate transaminase [24 (7,171) vs. 21 (7,83) IU/l; p < 0.001] and gamma-glutamyl transferase [27 (8,482) vs. 21 (7,168) IU/l; p = 0.005] levels were increased. In insulin-resistant patients (n = 187), coronary artery disease (CAD) burden correlated (r = 0.55) with age (, = 1.62; p < 0.001), HDL-C (, = ,53.2; p < 0.001), lipoprotein (a) (, = 11.4; p = 0.007), smoking (, = 7.98; p = 0.004), CRP (, = 6.06; p = 0.03) and QuickI index (, = ,146; p = 0.04). In contrast in insulin-sensitive patients (n = 178) CAD burden (r = 0.46) correlated with LDL-C (, = 10.0; p = 0.02), CRP (, = 7.13; p = 0.03), HDL-C (, = ,38.1; p = 0.03), and weakly with age (, = 0.73; p = 0.07) and smoking (, = 5.52; p = 0.09). Conclusions:, Indian Asians show a dichotomous insulin-resistance phenotype. Atheroma is associated with low HDL-C and inflammation associated in all but LDL-C is a factor in the insulin sensitive in contrast to age and extent of IR in the insulin resistant. [source]


    HDL-c is a powerful lipid predictor of cardiovascular diseases

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 11 2007
    E. Bruckert
    Summary Relationship between HDL-c and cardiovascular diseases:, Beyond the role of low-density lipoprotein cholesterol (LDL-c) in the development of atherosclerosis, growing evidence suggest that high-density lipoprotein cholesterol (HDL-c) is a powerful predictor of cardiovascular disease. Indeed, epidemiological, mechanistic and intervention studies suggest that low HDL-c is a major cardiovascular risk factor and that increasing HDL-c plasma levels may be beneficial, particularly in patients with low HDL-c levels. The inverse association between HDL-c concentrations and cardiovascular risk is continuous without threshold value. Thus, any categorical definition of low HDL-c is arbitrary. Protective effects of HDL:, HDL particles are highly heterogeneous in structure and intravascular metabolism. Antiatherogenic properties of HDL include its role in the reverse cholesterol transfer, besides its antioxidant, anti-inflammatory and antiapoptotic activities. What should clinicians do?:, From a practical point of view, HDL-c should be systematically measured to assess the cardiovascular risk in patients. The first step to consider in subjects with low HDL-c is to look for specific causes and give advice to change inappropriate lifestyle components associated with low HDL-c, such as smoking, lack of physical exercise and overweight. Patients with very low HDL-c need a thorough evaluation by specialist physicians. Statins are associated with a modest increase of HDL-c (5%) while fibrates and nicotinic acid increase HDL-c by 10% and 20% respectively. [source]


    The collaborative atorvastatin diabetes study: preliminary results,

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 1 2005
    Olwen Glynn Owen
    Summary The Collaborative AtoRvastatin Diabetes Study (CARDS) is the first large primary prevention study to focus specifically on the role of a statin in patients aged 40,75 years with type 2 diabetes, but no signs or symptoms of pre-existing vascular disease and who had only average or below average cholesterol levels. The trial was a prospective double-blind randomised trial with 2383 type 2 diabetic subjects randomised to either 10-mg atorvastatin daily or placebo. Originally designed to run for 5 years, the trial was terminated over a year early in June 2003 on account of a clear benefit demonstrated for the intervention group. Over half of patients had a low-density lipoprotein cholesterol (LDL-C) below 3.3 mmol/l at entry and a quarter had an LDL-C <2.6 mmol/l. Atorvastatin 10 mg reduced LDL-C by 40% (1.2 mmol/l) on average. Results at 4 years showed a 37% relative risk reduction (p < 0.001) for atorvastatin 10 mg in the primary endpoint (acute coronary heart disease death, fatal or non-fatal myocardial infarction, unstable angina requiring hospital admission, resuscitated cardiac arrest, coronary revascularisation procedures and stroke). Among the secondary endpoints, total mortality was reduced by 27% (p = 0.05), acute coronary events by 36%, coronary revascularisation by 31% and stroke by 48%. The same magnitude of benefit was observed among patients with LDL-C above or below 3 mmol/l. Results observed were against a background where 9% of placebo patients had been permitted to start statin therapy after enrolment and 15% of patients on active treatment had discontinued atorvastatin. The true benefit of the intervention is therefore probably around 25% greater than the intention to treat analysis reports. [source]


    Improving lipid management , to titrate, combine or switch

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 7 2004
    H. Schuster
    Summary Despite the benefits of statin therapy, cholesterol management remains suboptimal and many patients do not achieve their recommended low-density lipoprotein cholesterol (LDL-C) goals. The use of insufficient doses, limited drug effectiveness and poor patient compliance may contribute to the treatment gap. Options for improving lipid management include dose titration, combination therapy or prescribing a more efficacious statin. LDL-C reductions are generally modest when patients' current statin dose is titrated, and there may be an increased potential for adverse effects. Combining statin therapy with another lipid-modifying agent can provide additional LDL-C reductions, but cost, tolerability and compliance should be considered. In general, switching to a more efficacious statin is a cost-effective way of enabling more patients to achieve recommended targets without increasing dosages. When considering the options available, physicians should balance efficacy, cost and safety to enable more patients to attain LDL-C goals and achieve greater therapeutic gain from statin treatment. [source]


    Antidiabetic activity of flavone from Ipomoea Batatas leaf in non-insulin dependent diabetic rats

    INTERNATIONAL JOURNAL OF FOOD SCIENCE & TECHNOLOGY, Issue 1 2007
    Rui Zhao
    Summary The effects of flavone extracted from Ipomoea batatas leaf (FIBL) on body weight, blood glucose, serum lipid profiles, serum insulin and free radicals in rats with non-insulin dependent diabetes mellitus (NIDDM) were studied. FIBL treatment (25, 50, 100 mg kg,1) for 2 weeks resulted in a significant decrease in the concentration of plasma triglyceride (TG), plasma cholesterol (TC) and weight in NIDDM rats. Furthermore, FIBL markedly decreased fasting plasma insulin level, blood glucose (FBG) level, low-density lipoprotein cholesterol (LDL-C), and malondialdehyde (MDA) levels and significantly increased the Insulin Sensitive Index (ISI) and superoxide dismutase (SOD) level in NIDDM rats. In addition, flavone extracted from I. batatas leaf did not show any physical or behavioural signs of toxicity. More significantly, our data demonstrate the FIBL at the dose of 50 mg kg,1 body weight exhibited the optimal effect. The above results suggest that flavone extracted from I. batatas leaf could control blood glucose and modulate the metabolism of glucose and blood lipid, and decrease outputs of lipid peroxidation and scavenge the free radicals in non-insulin dependent diabetic rats. [source]


    Plasma Carboxymethyl-Lysine, an Advanced Glycation End Product, and All-Cause and Cardiovascular Disease Mortality in Older Community-Dwelling Adults

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 10 2009
    Richard D. Semba MD
    OBJECTIVES: To determine whether older adults with high plasma carboxymethyl-lysine (CML), an advanced glycation end product, are at higher risk of all-cause and cardiovascular disease (CVD) mortality. DESIGN: Prospective cohort study. SETTING: Population-based sample of adults aged 65 and older residing in Tuscany, Italy. PARTICIPANTS: One thousand thirteen adults participating in the Invecchiare in Chianti study. MEASUREMENTS: Anthropometric measures, plasma CML, fasting plasma total, high-density and low-density lipoprotein cholesterol, triglycerides, glucose, creatinine. Clinical measures: medical assessment, diabetes mellitus, hypertension, coronary heart disease, heart failure, stroke, cancer. Vital status measures: death certificates and causes of death according to the International Classification of Diseases. Survival methods were used to examine the relationship between plasma CML and all-cause and CVD mortality, adjusting for potential confounders. RESULTS: During 6 years of follow-up, 227 (22.4%) adults died, of whom 105 died with CVD. Adults with plasma CML in the highest tertile had greater all-cause (hazard ratio (HR)=1.84, 95% confidence interval) CI)=1.30,2.60, P<.001) and CVD (HR=2.11, 95% CI=1.27,3.49, P=.003) mortality than those in the lower two tertiles after adjusting for potential confounders. In adults without diabetes mellitus, those with plasma CML in the highest tertile had greater all-cause (HR=1.68, 95% CI=1.15,2.44, P=.006) and CVD (HR=1.74, 95% CI=1.00,3.01, P=.05) mortality than those in the lower two tertiles after adjusting for potential confounders. CONCLUSION: Older adults with high plasma CML are at higher risk of all-cause and CVD mortality. [source]


    The Relationship Between Glycemic Control and Falls in Older Adults

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 12 2007
    Joan M. Nelson RN
    OBJECTIVES: To determine whether glycemic control contributes to fall risk in frail and nonfrail elderly adults with diabetes mellitus. DESIGN: Retrospective, case-controlled design. SETTING: Health maintenance organization in the Denver, Colorado, metropolitan area. PARTICIPANTS: One hundred eleven community-dwelling adults aged 75 and older who receive care through Kaiser Permanente of Colorado. All subjects had been diagnosed with diabetes mellitus, had at least one hemoglobin A1C (HbA1c) measurement in the previous 12 months, and were using oral hypoglycemic medication or insulin to control their diabetes mellitus. MEASUREMENTS: Measurements of risk factors (Vulnerable Elders Survey (VES-13) with a cutpoint of 3 to determine frailty status, self-reported number of falls over the prior 12-month period, HbA1c, fasting low-density lipoprotein cholesterol, average blood pressure, and other factors related to fall risk) were obtained through telephone interview and medical chart review. The outcome measure was falls. RESULTS: Bivariate analyses to assess correlations between falls and risk factors determined that only HbA1c, frailty, and peripheral neuropathy were significantly associated with falls. A stepwise logistic regression determined that fall risk markedly increased when HbA1c was 7 or below, regardless of frailty status. CONCLUSION: In this retrospective study of a convenience sample of frail older adults with diabetes mellitus, tighter glycemic control was associated with greater risk of falling. Prospective studies that further evaluate the risks and benefits of relaxed glucose control in high-risk older adults are needed to confirm this finding. [source]


    Nitric Oxide Metabolites Are Associated with Survival in Older Patients

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 9 2007
    Toshio Hayashi MD
    OBJECTIVES: To assess the efficacy of various vascular endocrinological substances, such as plasma nitric oxide metabolites (NOx), as surrogate markers of survival in older patients. DESIGN: Prospective cohort, observational. SETTING: Nagoya University Hospital and related hospitals, Japan. PARTICIPANTS: One hundred fifty patients aged 70 and older, recruited consecutively from the outpatient clinics of Nagoya University Hospital and related hospitals. MEASUREMENT: Serum biochemical analyses such as albumin and total cholesterol, various prognostic markers, such as tumor necrosis factor (TNF)-,, NOx, activities of daily living (ADLs), and instrumental ADLs (IADLs) were evaluated on enrollment. ADLs, IADLs, and comorbidities, especially depression and impaired cognition, were evaluated on enrollment. The main outcome was survival rate over 2.75 years. RESULTS: Forty-nine patients died during the follow-up period. Mann-Whitney U -test showed that hemoglobin, total protein, serum albumin, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, high sensitive c-reactive protein, NOx, B-type natriuretic peptide, interleukin-6, and TNF-, levels; ADLs; cognitive impairment; and depressive status were significantly different for subjects who survived and those who died. Of the dependent variables in the Cox proportional hazards regression analyses, only ADLs, NOx, and albumin were significantly different. In the Kaplan-Meier analyses of mortality, the prognosis of patients in the third and fourth quartiles of NOx was significantly worse than that of patients in the first or second quartile. The prognosis of patients with impaired ADLs was worse than that of other patients for the overall period. CONCLUSION: Lower levels of NOx may be associated with survival in older patients. It may be an effective marker, like ADLs, which is a well-known marker. [source]


    Aging and the Prevalence of Cardiovascular Disease Risk Factors in Older American Indians: The Strong Heart Study

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 1 2007
    Dorothy A. Rhoades MD
    OBJECTIVES: To describe longitudinal changes in the prevalence of major cardiovascular disease (CVD) risk factors in aging American Indians. DESIGN: Population-based ongoing epidemiological study. SETTING: The Strong Heart Study is a study of CVD and its risk factors. Standardized examinations were repeated in 1993 to 1995 and again in 1997 to 1999. PARTICIPANTS: A diverse cohort of 4,549 American Indians aged 45 to 74 at the initial examinations in 1989 to 1991. MEASUREMENTS: Changes in the prevalence of hypertension, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), current smoking, and type 2 diabetes mellitus. RESULTS: The prevalence of hypertension rose rapidly and steadily with aging. A nonsignificant decrease in LDL-C was seen in men, and men and women initially had rapid increases in the prevalence of low HDL-C. The prevalence of smoking decreased, but the prevalence of diabetes mellitus continued to rise for men and women. CONCLUSION: Overall, unfavorable changes in CVD risk factors were seen in the aging participants and will likely be reflected in worsening morbidity and mortality. [source]