Other Significant Differences (other + significant_difference)

Distribution by Scientific Domains


Selected Abstracts


Similar and functionally typical kinematic reaching parameters in 7- and 15-month-old in utero cocaine-exposed and unexposed infants

DEVELOPMENTAL PSYCHOBIOLOGY, Issue 3 2004
E. Z. Tronick
Abstract This study examined the effects of intrauterine cocaine exposure on the reaches of 19 exposed and 15 unexposed infants at 7 and 15 months using kinematic measures. Infants sat at a table and reached for a rattle, a toy doll, and a chair. Videotaped reaches were digitized using the Peak Performance system. Kinematic movement variables were extracted (e.g., reach duration, peak velocity, movement units, path length) and ratios computed (e.g., path length divided by number of movement units). Regardless of exposure status, reaches of older infants were faster, more direct, had fewer movement units, and covered more distance with the first movement unit. Exposed infants covered more distance per movement unit than unexposed infants, but there were no other significant differences. Reaches of exposed and unexposed infants were essentially similar. Importantly, reach parameters for these high-risk infants were similar to reach parameters for infants at lower social and biological risk. © 2004 Wiley Periodicals, Inc. Dev Psychobiol 44: 168,175, 2004. [source]


Age-related changes in human meniscal glycosaminoglycans

INTERNATIONAL JOURNAL OF EXPERIMENTAL PATHOLOGY, Issue 4 2004
Gareth Blackburn
Introduction With an increased human lifespan, a major challenge is now to ensure a concomitant increase in healthspan. Meniscal damage and degradation are common and are strongly correlated with subsequent osteoarthritis. Indeed, meniscal damage has been identified in about 60% of people over 60. Markers of pathology will facilitate intervention but first require normal age-related changes to be established. Methods Undamaged vascular and avascular regions of medial and lateral human menisci were comminuted and the tissue extracted into 4- m GuHCl and subject to associative CsCl density gradient centrifugation. Aggrecan and the small leucine rich PGs (SLRPs) were isolated and their GAG profiles examined by HPAEC fingerprinting, following enzyme depolymerization, and by an NMR spectroscopy. Results and discussion Analysis of aggrecan and the SLRPs show that there is a complex and dynamic pattern of KS, CS and DS abundance and distribution within human menisci, which changes with age. The abundance of SLRPs is higher in the avascular than vascular tissues, however, this is not reflected in the abundance of aggrecan which is present at similar levels in both tissue regions. The data show no other significant differences between medial and lateral and between vascular and avascular tissue regions. Analysis of the sulfation pattern of CS following digestion by ACII lyase, shows that in both aggrecan and SLRPs the 4-sulfation level falls with age from 20 to 35% in young tissues to 10,20% in older. Subsequent analyses following ABC lyase depolymerization, to include DS, shows very significant change with age from CS + DS 4-sulfation levels of ca. 40,55% in young tissue to ca. 15,30% in older. The difference between these datasets represents the contribution made by 4-sulfated DS. Thus, analysis of the difference suggests that DS makes a decreasing contribution to the CS/DS profile with age. Indeed, this is confirmed by an NMR analysis of these samples. Analysis of the resonances in the region 1.95,2.2 p.p.m. (ref to TSP) allows the estimation of the contribution made by DS, CS and KS. These data show that, in aggrecan, the contribution made by DS chains falls from ca. 10% in younger tissues to ca. 2,4% in older tissues. NMR analysis also shows that KS levels fall with age from ca. 15,20% in younger tissues to 5,10% in older tissues. Analysis of the structure of the KS chains shows chains with a structure similar to that of in articular cartilage but that at all ages there are very low levels of fucosylation (ca. 1,5%). Previous studies of age-related changes in CS/DS and KS structures have shown significant changes in the first 17 years of life, with only modest nonpathological changes after that time. These data from meniscal tissues do not show such a dramatic halting of normal age-related changes. Indeed, the data show gradual age-related changes in DS, CS and KS abundance and structure throughout life. These baseline age-related changes data will now allow the analysis of pathology-related changes. [source]


Late sensory function after intraoperative capsaicin wound instillation

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 2 2010
E. K. AASVANG
Background: Intense capsaicin-induced C-fiber stimulation results in reversible lysis of the nerve soma, thereby making capsaicin wound instillation of potential interest for the treatment of post-operative pain. Clinical histological and short-term sensory studies suggest that the C-fiber function is partly re-established after skin injection of capsaicin. However, no study has evaluated the long-term effects of wound instillation of purified capsaicin on sensory functions. Methods: Patients included in a double-blind placebo-controlled randomized study of the analgesic effect of capsaicin after groin hernia repair were examined by quantitative sensory testing before, 1 week and 2 years post-operatively. The primary endpoint was occurrence of hyperalgesia/allodynia. The secondary endpoints were acute and late sensory changes between the two patient groups. Patients were blinded to the allocated treatment. Results: Twenty (100%) capsaicin and 16 (76%) placebo-treated patients were seen at the year follow-up. Hyperalgesia was seen in five capsaicin- vs. one placebo-treated patient (P=0.2). The mechanical detection threshold was significantly increased on the operated side in the capsaicin vs. placebo group at the 1-week follow-up (P<0.05), but was not different at the year follow-up (P=0.3). There were no other significant differences in sensory function on the operated side between groups at the pre-operative, 1-week or year post-operative follow-up (P>0.05). The sensory function on the contralateral side was comparable between groups throughout the study (P>0.1). Conclusion: This small-volume study calls for further long-term safety studies of wound capsaicin instillation. [source]


Influence of non-crop plants on stink bug (Hemiptera: Pentatomidae) and natural enemy abundance in tomatoes

JOURNAL OF APPLIED ENTOMOLOGY, Issue 8 2010
C. G. Pease
Abstract We investigated the effects of weed hosts on stink bug density and damage (Euschistus conspersus Uhler and Thyanta pallidovirens Stal), and a nectar bearing plant on natural enemies of stink bugs in the Sacramento Valley of California. Stink bug density and fruit damage were evaluated in processing tomatoes adjacent to weedy and cultivated borders. The density of E. conspersus was significantly greater in tomatoes adjacent to weedy borders in July but not during August/September. Thyanta pallidovirens was less abundant overall (19%), but was found in significantly greater densities adjacent to cultivated borders in July but not in August/September. Mean percent fruit damage by stink bugs was greater adjacent to the weedy border than the cultivated border, but this difference was not significant. Stink bug egg parasitism and generalist predator density were evaluated in fresh market tomatoes adjacent to a sweet alyssum (Lobularia maritima L.) border and an unplanted control border at three sites. Egg parasitism was significantly greater in the alyssum treatment for the 9,12 September sampling period. Jalysus wickhami VanDuzee (Hemiptera: Berytidae) density was significantly greater in the alyssum treatment in mid-June. No other significant differences in predator populations were detected. Results of these two studies show that habitat manipulations have the potential to reduce densities of E. conspersus in tomato, the first step in developing a farmscape management plan for stink bug control. [source]


Treatment Acceptability of Healthcare Services for Children with Cerebral Palsy

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 5 2007
Norm Dahl
Background, Although treatment acceptability scales in intellectual and developmental disabilities research have been used in large- and small-scale applications, large-scale application has been limited to analogue (i.e. contrived) investigations. This study extended the application of treatment acceptability by assessing a large sample of care givers' perceptions of treatment for children with cerebral palsy (CP) in a real-world setting and tested if responses differed across child characteristics, type of medical service or respondent demographics. Method, One hundred and fifty four care givers' for children with CP rated the acceptability of treatments and related medical services by clinicians working in a multi-disciplinary children's specialty setting using Kazdin's (Journal of Applied Behavior Analysis, 13, 1980, 259) Treatment Evaluation Inventory. Results, There were significant (P < 0.05) differences between male and female respondents' ratings of treatment acceptability. There were no other significant differences for caregiver ratings in relation to child characteristics, type of appointment, severity of CP or other respondent demographic characteristics. Conclusion, Mothers and fathers of children with developmental disabilities may differ in their perceptions of the acceptability of medical treatment services for children with developmental disabilities. Future studies addressing treatment acceptability should expand the scope of demographic information assessed and include items specific to the roles respondents have in providing and coordinating therapeutic regimens for their children's medical needs. [source]


Creativity Defined: Implicit Theories in the Professions of Interior Design, Architecture, Landscape Architecture, and Engineering

JOURNAL OF INTERIOR DESIGN, Issue 1 2002
Margaret Portillo Ph.D.
ABSTRACT The purpose of this study was to examine implicit theories of creativity in related fields through a mail survey of 3 1 3 professors randomly selected from accredited programs in interior design, architecture, landscape architecture, and engineering. To describe a highly creative practitioner in their respective fields, the respondents completed the Gough Adjective Check List (ACL), scored with the Domino creativity scale (Cr). The interior design professors generated a profile of the creative practitioner that obtained a significantly higher mean score than did the architecture or engineering groups on the ACL-Cr scale. No other significant differences on the creativity scale appeared between groups. Exploratory analyses of individual ACL-Cr items found considerable agreement as to what constituted creativeness in implicit theories. At least 75 percent of the respondents in each group described the creative practitioner in their respective fields as imaginative, inventive, and adventurous. Disciplinary differences among groups surfaced in 21 traits on the ACL-Cr scale that were statistically significant in areas of artistic creativity, scientific creativity, intelligence, self-confidence, and task orientation. Further, the creative interior design practitioner was perceived as significantly more individualistic and original than in the other three fields, and sixteen other traits significantly differentiated interior design profiles from those posited in architecture, landscape architecture, or engineering. By promoting a scholarship of integration, findings reveal perceived traits of the creative practitioner in allied fields and advance interdisciplinary understanding. Design educators are encouraged to reflect on their own implicit theories of creativity and those of their students to acknowledge underlying assumptions about creativity that can influence innovation and collaboration. [source]


The use of desflurane or propofol in combination with remifentanil in myasthenic patients undergoing a video-assisted thoracoscopic-extended thymectomy

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 3 2009
P. GRITTI
Background: Although several studies of the use of desflurane in anesthesia have revealed many desirable qualities, there are no data on the use and effects especially on the neuromuscular function of desflurane on myasthenia gravis (MG) patients. The purpose of this study was to evaluate the use of either desflurane or propofol, both combined with remifentanil, in patients with MG undergoing a video-assisted thoracoscopic-extended thymectomy (VATET). Methods: Thirty-six MG patients who underwent VATET were enrolled. Nineteen patients were anesthetized with remifentanil and propofol infused with a target-controlled infusion plasma model, and 17 patients with desflurane and remifentanil. No muscle relaxant was used. The intubating conditions, hemodynamic and respiratory changes, neuromuscular transmission and post-operative complications were evaluated. Results: Neuromuscular transmission was significantly decreased in the desflurane group (6.7%, from 3% to 9% during anesthesia P=<0.05). The intubating conditions were good in all 36 patients and 35 patients were successfully extubated in the operating room. The time-to-awakening, post-operatory pH and base excess were significantly different in the two groups, with a decreasing mean arterial pressure in the group administered with desflurane. No patients required reintubation due to myasthenic or cholinergic crisis, or respiratory failure. No other significant differences between the two groups studied were observed. Conclusion: Our experience indicates that anesthesia with desflurane plus remifentanil in patients with MG could determine a reversible muscle relaxation effect, but with no clinical implication, allowing a faster recovery with no difference in extubation time and post-operative complications in the two groups. [source]


Retraining cervical joint position sense: The effect of two exercise regimes

JOURNAL OF ORTHOPAEDIC RESEARCH, Issue 3 2007
Gwendolen Jull
Abstract This study compared the effects of conventional proprioceptive training and craniocervical flexion (C-CF) training on cervical joint position error (JPE) in people with persistent neck pain. The aim was to evaluate whether proprioceptive training was superior in improving proprioceptive acuity compared to another form of exercise, which has been shown to be effective in reducing neck pain. This may help to differentiate the mechanisms of effect of such interventions. Sixty-four female subjects with persistent neck pain and deficits in JPE were randomized into two exercise groups: proprioceptive training or C-CF training. Exercise regimes were conducted over a 6-week period, and all patients received personal instruction by an experienced physiotherapist once per week. A significant pre- to postintervention decrease in JPE, neck pain intensity, and perceived disability was identified for both the proprioceptive training group (p,<,0.001) and the C-CF training group (p,<,0.05). Patients who participated in the proprioceptive training demonstrated a greater reduction in JPE from right rotation compared to the C-CF training group (p,<,0.05). No other significant differences were observed between the two groups. The results demonstrated that both proprioceptive training and C-CF training have a demonstrable benefit on impaired cervical JPE in people with neck pain, with marginally more benefit gained from proprioceptive training. The results suggest that improved proprioceptive acuity following intervention with either exercise protocol may occur through an improved quality of cervical afferent input or by addressing input through direct training of relocation sense. © 2006 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 2007 [source]


Quality of Care for Acute Myocardial Infarction in Elderly Patients with Alcohol-Related Diagnoses

ALCOHOLISM, Issue 1 2006
David A. Fiellin
Background: Elderly adults with alcohol-related diagnoses represent a vulnerable population that may receive lower quality of treatment during hospitalization for acute myocardial infarction. We sought to determine whether elderly patients with alcohol-related diagnoses are less likely to receive standard indicators of quality care for acute myocardial infarction. Methods: We conducted a retrospective cohort analysis using administrative and medical record data from the Cooperative Cardiovascular Project. Subjects were Medicare beneficiaries with a confirmed principal discharge diagnosis of acute myocardial infarction from all acute care hospitals in the United States over an 8-month period. Our primary outcome was the receipt of 7 guideline-recommended care measures among all eligible patients and patients who were ideal candidates for a given measure. Results: In all, 1,284 (1%) of the 155,026 eligible patients met criteria for an alcohol-related diagnosis. Among the alcohol-related diagnoses, 1,077/1,284 (84%) were for the diagnoses of alcohol dependence or alcohol abuse. Patients with alcohol-related diagnoses were less likely than those without alcohol-related diagnoses to receive ,-blockers at the time of discharge (55% vs. 60%, p=0.02). We found no other significant differences in performance of the quality indicators after stratifying by indication and adjustment for baseline characteristics. Conclusions: Alcohol-related diagnoses are not a barrier to receiving most quality of care measures in elderly patients hospitalized for acute myocardial infarction. [source]


The use of exclusive enteral nutrition for induction of remission in children with Crohn's disease demonstrates that disease phenotype does not influence clinical remission

ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 5 2009
E. BUCHANAN
Summary Background, Exclusive enteral nutrition (EEN) achieves variable remission rates in patients with Crohn's disease (CD). Aim, To describe our experience of treating CD with an 8-week course of primary EEN and to study factors affecting treatment outcome. Methods, All CD patients treated with EEN in our centre between 2004 and 2007 were included in the study. Remission was determined by a combination of clinical parameters. Disease phenotype was assigned using published classifications. Inflammatory markers and anthropometry (Z -scores) were calculated before and after treatment. Results, A total of 114 children were treated (four were excluded). Median age at diagnosis was 11.6 years. Fifty-seven (51.8%) were fed orally whilst 53 (48.2%) were fed by tube. Eighty-eight (80%) achieved remission with consequent reductions in erythrocyte sedimentation rate and C-reactive protein (P < 0.001). Patients in remission had comparative improvements in weight (,1.04 cf. ,0.40) and BMI Z -scores (,0.98 cf. ,0.03) by the end of treatment (P < 0.001). Individuals with isolated terminal ileal disease (n = 4) had lower remission rates than other locations (P = 0.02). No other significant differences in remission rates for any other disease locations were found. Conclusions, Exclusive enteral nutrition induces clinical remission, normalization of inflammatory markers and improves weight/BMI Z -scores in most patients. This study demonstrates that disease phenotype should not influence clinicians when commencing patients on EEN. [source]


Physiologic Effects of the TASER After Exercise

ACADEMIC EMERGENCY MEDICINE, Issue 8 2009
Gary M. Vilke MD
Abstract Objectives:, Incidents of sudden death following TASER exposure are poorly studied, and substantive links between TASER exposure and sudden death are minimal. The authors studied the effects of a single TASER exposure on markers of physiologic stress in humans. Methods:, This prospective, controlled study evaluated the effects of a TASER exposure on healthy police volunteers after vigorous exercise, compared to a subsequent, identical exercise session that was not followed by TASER exposure. Subjects exercised to 85% of predicted heart rate (HR) on an ergometer and then were given a standard 5-second TASER activation. Measures before and for 60 minutes after the TASER activation included minute ventilation, tidal volume, respiratory rate, end-tidal pCO2, oxygen saturation, HR, blood pressure (systolic BP/diastolic BP), 12-lead electrocardiogram, and arterialized blood for pH, pO2, pCO2, and lactate. Each subject repeated the exercise and data collection session on a subsequent data, without TASER activation. Data were analyzed using paired Student's t-tests with differences and 95% confidence intervals (CIs). Statistical significance was adjusted for multiple comparisons. Results:, A total of 25 officers (21 men and 4 women) completed both portions of the study. After adjusting for multiple comparisons, the TASER group was significantly higher for systolic BP at baseline (difference of 14.1, 95% CI = 8.7 to 19.5, p < 0.001) and HR at 5, 30, and 60 minutes with the largest difference at 30 minutes (difference of 7.0, 95% CI = 2.5 to 11.5, p = 0.004). There were no other significant differences between the two groups in any other measure at any time. Conclusions:, A 5-second exposure of a TASER following vigorous exercise to healthy law enforcement personnel does not result in clinically significant changes in ventilatory or blood parameters of physiologic stress. [source]


Changes in body image satisfaction during pregnancy: A comparison of high exercising and low exercising women

AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 1 2003
Nadia Boscaglia
Abstract Objective: This study aimed to compare ratings of body image satisfaction (BIS) from 6 months prepregnancy to 23,30 weeks' gestation for high exercising and low exercising pregnant women. The authors also aimed to assess and compare expectations of BIS for the post-partum period in high and low exercising women. Design: A partial prospective approach was implemented. Sample: A total of 71 healthy pregnant women (40 high exercisers and 31 low exercisers) participated. Methods: Participants completed a series of questionnaires at 15,22 weeks' gestation and 23,30 weeks' gestation. Main outcome measures: There were two main outcome measures. At 15,22 weeks' gestation there was an exercise inventory and two versions of the Body Cathexis Scale (BCS) (retrospective prepregnancy BIS and current BIS). At 23,30 weeks' gestation there was an exercise inventory and two versions of the BCS (current BIS and projected post-partum BIS). Results: ,At 15,22 weeks' gestation, high exercisers demonstrated significantly higher levels of BIS compared to low exercisers. There were no other significant differences between groups. Within groups, high exercisers were significantly more satisfied with their bodies at 15,22 weeks' gestation compared to 6 months prepregnancy, and expected to be less satisfied with their bodies at 6 weeks' post-partum than they were during pregnancy. Low exercisers demonstrated no significant changes over time. Conclusions: The findings suggest that women are able to assimilate the bodily changes of pregnancy without a negative shift in BIS. However, women who exercise during pregnancy may respond more favourably to changes in their bodies at early pregnancy compared to women who remain sedentary. [source]


Developmental outcomes in early compared with delayed surgery for glue ear up to age 7 years: a randomised controlled trial

CLINICAL OTOLARYNGOLOGY, Issue 1 2009
A.J. Hall
Objectives:, To investigate whether early versus delayed surgery for children severely affected by otitis media with effusion (OME) results in improved performance on developmental tests up to age 7 years. Design:, Follow-up of a randomised controlled trial. Setting:, University of Bristol. Participants:, One hundred and eighty-two children (mean age 35 months) with persistent OME, hearing loss and speech, language or behaviour problems who were originally eligible and randomised to either early surgery or delayed surgery after a period of watchful waiting were followed-up as part of the Avon Longitudinal Study of Parents and Children (ALSPAC) at age 4½ and 7,8 years. Main outcome measures:, Measures included behaviour, language, educational attainment tests, hearing, reading, cognition and coordination. Results:, Of the original randomised trial, 88 of 92 of the early surgery and 74 of 90 of the watchful waiting group were still participating in ALSPAC. Analysis was by intention to treat. At age 4 ½ years there were significant differences in teacher assessment of language (adj OR 3.45, 95% CI: 1.42,8.39) and writing (adj OR 3.74, 95% CI: 1.51,9.27), in favour of early surgery. At age 7,8 years, there was a significant difference on teacher report of emotional problems (adj OR 4.11, 95% CI: 1.15,14.64) in favour of early surgery. There were no other significant differences. Conclusions:, Early surgery for the child severely affected by OME may be associated with subtle benefits at age 4½ years. This may continue to 7,8 years but the small study size makes it difficult to distinguish these effects from chance. A larger study is recommended. [source]