Treatment Paradigm (treatment + paradigm)

Distribution by Scientific Domains
Distribution within Medical Sciences

Kinds of Treatment Paradigm

  • new treatment paradigm


  • Selected Abstracts


    The Treatment of Melasma with Fractional Photothermolysis: A Pilot Study

    DERMATOLOGIC SURGERY, Issue 12 2005
    Cameron K. Rokhsar MD
    Background. Melasma is a common pigmentary disorder that remains resistant to available therapies. Facial resurfacing with the pulsed CO2 laser has been reported successful but requires significant downtime, and there is a risk of adverse sequelae. Objective. To determine if melasma will respond to a new treatment paradigm, fractional resurfacing. Methods. Ten female patients (Fitzpatrick skin types III,V) who were unresponsive to previous treatment were treated at 1- to 2-week intervals with the Fraxel laser (Reliant Technologies, Palo Alto, CA, USA). Wavelengths of 1,535 and 1,550 nm were both used, and 6 to 12 mJ per microthermal zone with 2,000 to 3,500 mtz/cm2 were the treatment parameters. Four to six treatment sessions were performed. Responses were evaluated according to the percentage of lightening of original pigmentation. Two physicians evaluated the photographs, and each patient evaluated her own response. Results. The physician evaluation was that 60% of patients achieved 75 to 100% clearing and 30% had less than 25% improvement. The patients' evaluations agreed, except for one patient, who graded herself as 50 to 75% improved as opposed to the physician grading of over 75%. There was one patient with postinflammatory hyperpigmentation and no patient with hypopigmentation. No downtime was necessary for wound healing. Conclusions. Fractional resurfacing affords a new treatment algorithm for the treatment of melasma that combines decreased risk and downtime with significant efficacy. This treatment modality deserves further exploration to maximize benefits. RELIANT technologies LOANED THE FRAXEL LASER FOR THE STUDY. RICHARD E. FITZPATRICK, MD, IS A PAID CONSULTANT FOR RELIANT AND A STOCKHOLDER. [source]


    Neuroprotection in emerging psychotic disorders

    EARLY INTERVENTION IN PSYCHIATRY, Issue 2 2007
    Gregor Berger
    Abstract Aim:, The emerging phase of psychotic disorders is pleomorphic and fluctuates in presentation. Hence, from a clinical perspective, treatment modalities are often unclear. This paper investigates the rational and potential use of neuroprotective agents in emerging psychotic disorders. Methods:, Medline databases were searched from 1966 to 2006 followed by the cross-checking of references using following keywords: neuroprotection, apoptosis, natural cell death, neurodevelopment, plasticity, neurogenesis, combined with brain and schizophrenia. Results:, Agents such as atypical antipsychotics, antidepressants, omega-3 fatty acids, modulators of glutamateric neurotransmission (e.g. ampakines, glycine, memantine), erythropoietin, N -acetylcysteine, COX-2 inhibitors or antioxidants have neuroprotective (anti-apoptotic) properties and may therefore be able to protect brain maturational processes disturbed in emerging psychotic disorders. Clinical trials suggest that atypical antipsychotics, antidepressants, omega-3 fatty acids and low-dose lithium as sole treatments were able to improve symptoms and functioning, and delay or in some cases even prevent the onset of frank psychosis. Initially these substances have been chosen because they have been used either as sole or augmentation treatments in established psychotic disorders. However, chronicity and already effective treatments may overshadow their potential clinical use in emerging (prodromal) psychosis. Conclusion:, Neuroprotection as a new treatment paradigm for at-risk mental states seems to be promising and pilot data are suggestive that more benign interventions may already be sufficient to delay or even prevent the onset of frank psychosis. A coordinated research effort will be necessary to address the question which agents should be used under which circumstances. [source]


    The Pharmacokinetics of Antiepileptic Drugs in Rats: Consequences for Maintaining Effective Drug Levels during Prolonged Drug Administration in Rat Models of Epilepsy

    EPILEPSIA, Issue 7 2007
    Wolfgang Löscher
    Summary:, Rodent models of chronic epilepsy with spontaneous recurrent seizures likely represent the closest parallel to the human condition. Such models may be best suited for therapy discovery for pharmacoresistant epilepsy and for antiepileptogenic or disease-modifying therapeutics. However, the use of such rodent models for therapy discovery creates problems with regard to maintaining effective drug levels throughout a prolonged testing period. This is particularly due to the fact that rodents such as rats and mice eliminate most drugs much more rapidly than humans. Thus, knowledge about elimination rate of a test drug in a laboratory species is essential for development of a treatment paradigm that allows maintaining adequate drug levels in the system over the period of treatment. Currently, the most popular models of epilepsy with spontaneous seizures are poststatus epilepticus models of temporal lobe epilepsy in rats. Such models are both used for studies on antiepileptogenesis and drug resistance. For validation of these models, current antiepileptic drugs (AEDs) have to be used. In this article, the elimination rates of these AEDs and their effective plasma levels in rats are reviewed as a guide for developing treatment protocols for chronic drug testing. The advantages and disadvantages of several technologies for drug delivery are discussed, and some examples for calculation of adequate treatment protocols are given. As shown in this review, because of the rapid elimination of most AEDs in rats, it is no trivial task to maintain effective steady-state AED levels in the plasma throughout the day over multiple days to ensure that there will be adequate levels in the system for the purpose of the experiment. However, the use of an adequate dosing regimen that is based on elimination rate is an absolute prerequisite when using rat models for discovery of new antiepileptogenic therapies or therapies for pharmacoresistant epilepsy, because otherwise such models may lead to erroneous conclusions about drug efficacy. [source]


    Pharmacokinetics of a novel transdermal rivastigmine patch for the treatment of Alzheimer's disease: a review

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 5 2009
    A. Kurz
    Summary Background:, Cholinesterase inhibitors have all been available in oral formulations, but a rivastigmine transdermal patch has now been developed and is approved in many countries worldwide for the treatment of mild-to-moderate Alzheimer's disease (AD) (including the USA, Latin America, Europe and Asia). Objectives:, To review the available pharmacokinetic data that supported the rationale behind the development of the rivastigmine transdermal patch and its clinical effects in dementia therapy. This article will also discuss how the patch may alter the treatment paradigm for patients with AD. Results:, The 9.5 mg/24 h rivastigmine patch was shown to provide comparable exposure to the highest recommended doses of capsules (12 mg/day) with significantly lower maximum plasma concentration (Cmax 8.7 vs. 21.6 ng/ml) and slower absorption rate (tmax 8.1 vs. 1.4 h). In a clinical trial of 1195 AD patients, this translated into similar efficacy with three times fewer reports of nausea and vomiting (7.2% vs. 23.1%, and 6.2% vs. 17.0% respectively). Consequently, more patients in the 9.5 mg/24 h patch group achieved their target therapeutic dose at the end of the study, compared with those in the 12 mg/day capsule group (95.9% vs. 64.4%). Conclusion:, The rivastigmine patch provides continuous drug delivery over 24 h and similar efficacy to the highest recommended dose of oral rivastigmine with improved tolerability. This may allow patients to achieve optimal therapeutic doses and to benefit from a longer duration of treatment. [source]


    Optimizing the use of traditional DMARD in RA: getting the most out of what we can afford!

    INTERNATIONAL JOURNAL OF RHEUMATIC DISEASES, Issue 1 2007
    Anwar ARSHAD
    Abstract Most of us would agree that biologic treatment offers efficacious and rapid onset of action in our rheumatoid arthritis (RA) patients and as a result this therapy changes our treatment paradigm. However, in some countries in our region, the availability and accessibility to biologics is still limited. Therefore, this review article will discuss the current status of disease-modifying antirheumatid drug (DMARD) usage and will attempt to make most of what we have now. We now have strong evidence of how we can optimize DMARD usage in RA in terms of the administration, timing in initiating therapy and also the interval of assessment of disease activity. [source]


    Mechanical Circulatory Support for AMI and Cardiogenic Shock

    JOURNAL OF CARDIAC SURGERY, Issue 4 2010
    Yasir Abu-Omar D.Phil.
    The dismal prognosis associated with post-MI cardiogenic shock, allied with surgical and technological advancements, has shifted the treatment paradigm toward wider use of mechanical circulatory support devices (MCSD). Current experience demonstrates that better outcomes may be achieved with early MCSD deployment (prior to the onset of end-organ dysfunction). However, perceived limitations with existing devices mean that they remain infrequently applied. There is an urgent need for increased awareness of MCSD options among clinicians treating post-MI shock patients. (J Card Surg 2010;25:434-441) [source]


    Hepatitis B in liver transplant recipients

    LIVER TRANSPLANTATION, Issue S2 2006
    Robert G. Gish
    Key Concepts: 1The use of low-dose immunosuppressive therapy along with pre- and posttransplantation nucleos(t)ide therapy and posttransplantation hepatitis B immunoglobulin (HBIG) has yielded marked improvements in survival. 2Lamivudine (Epivir-HBV), adefovir (Hepsera), entecavir (Baraclude), tenofovir (Viread), emtricitabine (Emtriva), and the combination drugs tenofovir + emtricitabine (Truvada) and abacavir + lamivudine (Epzicom) are effective nucleos(t)ide antiviral agents that, in some cases, may help reverse liver disease sufficiently to avoid transplant. 3In posttransplantation patients, virus suppression with some combination of HBIG and the nucleos(t)ide agents may prevent graft loss and death or the need for a second transplant. 4In both the pre- and posttransplantation setting, the goal of hepatitis B virus management is complete virus suppression. 5The use of low-dose intramuscular HBIG is evolving, with studies showing that dosing and cost can be reduced by 50,300% with a customized approach. 6Elimination of HBIG from the treatment paradigm is currently under evaluation and may be possible with the use of newer medications that have no or low resistance rates. 7Although there is growing evidence that some types of combination therapy may decrease the chance that drug resistance will develop and increase the likelihood of long-term success in preventing graft loss and death, additional research will be required to determine which combinations will work well in the long term, and which will not. Liver Transpl 12:S54,S64, 2006. © 2006 AASLD. [source]


    Mathematical modelling of the impact of haematopoietic stem cell-delivered gene therapy for HIV

    THE JOURNAL OF GENE MEDICINE, Issue 12 2009
    John M. Murray
    Abstract Background Gene therapy represents a new treatment paradigm for HIV that is potentially delivered by a safe, once-only therapeutic intervention. Methods Using mathematical modelling, we assessed the possible impact of autologous haematopoietic stem cell (HSC) delivered, anti-HIV gene therapy. The therapy comprises a ribozyme construct (OZ1) directed to a conserved region of HIV-1 delivered by transduced HSC (OZ1+HSC). OZ1+HSC contributes to the CD4+ T lymphocyte and monocyte/macrophage cell pools that preferentially expand under the selective pressure of HIV infection. The model was used to predict the efficacy of OZ1 in a highly active antiretroviral therapy (HAART) naïve individual and a HAART-experienced individual undergoing two structured treatment operations. In the standard scenario, OZ1+HSC was taken as 20% of total body HSC. Results For a HAART-naïve individual, modelling predicts a reduction of HIV RNA at 1 and 2 years post-OZ1 therapy of 0.5 log10 and 1 log10, respectively. Eight years after OZ1 therapy, the CD4+ T-lymphocyte count was 271 cells/mm3 compared to 96 cells/mm3 for an untreated individual. In a HAART-experienced individual HIV RNA was reduced by 0.34 log10 and 0.86 log10 at 1 and 2 years. The OZ1 effect was maximal when both CD4+ T lymphocytes and monocytes/macrophages were protected from successful, productive infection by OZ1. Conclusions The modelling indicates a single infusion of HSC cell-delivered gene therapy can impact on HIV viral load and CD4 T-lymphocyte count. Given that gene therapy avoids the complications associated with HAART, there is significant potential for this approach in the treatment of HIV. Copyright © 2009 John Wiley & Sons, Ltd. [source]


    Gene therapy for HIV/AIDS: the potential for a new therapeutic regimen

    THE JOURNAL OF GENE MEDICINE, Issue 8 2003
    Greg Fanning
    Abstract Human Immunodeficiency Virus (HIV) is the etiologic agent of Acquired Immunodeficiency Syndrome (AIDS). HIV/AIDS is a disease that, compared with the not so distant past, is now better held in check by current antiretroviral drugs. However, it remains a disease not solved. Highly active antiretroviral therapy (HAART) generally uses two non-nucleoside and one nucleoside reverse transcriptase (RT) inhibitor or two non-nucleoside RT and one protease inhibitor. HAART is far more effective than the mono- or duo-therapy of the past, which used compounds like the nucleoside reverse transcriptase inhibitor AZT or two nucleoside reverse transcriptase inhibitors. However, even with the relatively potent drug cocktails that comprise HAART, there are the issues of (i) HIV escape mutants, (ii) an apparent need to take the drugs in an ongoing manner, and (iii) the drugs' side effects that are often severe. This review speaks to the potential addition to these potent regimens of another regimen, namely the genetic modification of target hematopoietic cells. Such a new treatment paradigm is conceptually attractive as it may yield the constant intracellular expression of an anti-HIV gene that acts to inhibit HIV replication and pathogenicity. A body of preclinical work exists showing the inhibition of HIV replication and decreased HIV pathogenicity by anti-HIV genetic agents. This preclinical work used hematopoietic cell lines and primary cells as the target tissue. More recently, several clinical trials have sought to test this concept in vivo. Copyright © 2003 John Wiley & Sons, Ltd. [source]


    Chronic cerebrospinal venous insufficiency and multiple sclerosis

    ANNALS OF NEUROLOGY, Issue 3 2010
    Omar Khan MD
    A chronic state of impaired venous drainage from the central nervous system, termed chronic cerebrospinal venous insufficiency (CCSVI), is claimed to be a pathologic phenomenon exclusively seen in multiple sclerosis (MS). This has invigorated the causal debate of MS and generated immense interest in the patient and scientific communities. A potential shift in the treatment paradigm of MS involving endovascular balloon angioplasty or venous stent placement has been proposed as well as conducted in small patient series. In some cases, it may have resulted in serious injury. In this Point of View, we discuss the recent investigations that led to the description of CCSVI as well as the conceptual and technical shortcomings that challenge the potential relationship of this phenomenon to MS. The need for conducting carefully designed and rigorously controlled studies to investigate CCVSI has been recognized by the scientific bodies engaged in MS research. Several scientific endeavors examining the presence of CCSVI in MS are being undertaken. At present, invasive and potentially dangerous endovascular procedures as therapy for patients with MS should be discouraged until such studies have been completed, analyzed, and debated in the scientific arena. ANN NEUROL 2010;67:286,290 [source]


    HIV-1 infection: new treatment paradigms

    EUROPEAN JOURNAL OF CLINICAL INVESTIGATION, Issue 3 2001
    Y. Persidsky
    No abstract is available for this article. [source]


    Time course of striatal ,FosB-like immunoreactivity and prodynorphin mRNA levels after discontinuation of chronic dopaminomimetic treatment

    EUROPEAN JOURNAL OF NEUROSCIENCE, Issue 3 2003
    M. Andersson
    Abstract ,FosB-like proteins are particularly stable transcription factors that accumulate in the brain in response to chronic perturbations. In this study we have compared the time-course of striatal FosB/,FosB-like immunoreactivity and prodynorphin mRNA expression after discontinuation of chronic cocaine treatment to intact rats and chronic L-DOPA treatment to unilaterally 6-hydroxydopamine (6-OHDA) lesioned rats. The animals were killed between 3 h and 16 days after the last drug injection. In both treatment paradigms, the drug-induced FosB/,FosB immunoreactivity remained significantly elevated in the caudate putamen even at the longest withdrawal period examined. The concomitant upregulation of prodynorphin mRNA, a target of ,FosB, paralleled the time-course of ,FosB-like immunoreactivity in the 6-OHDA-lesion/L-DOPA model, but was more transient in animals treated with cocaine. These results suggest that ,FosB-like proteins have exceptional in vivo stability. In the dopamine-denervated striatum, these proteins may exert sustained effects on the expression of their target genes long after discontinuation of L-DOPA pharmacotherapy. [source]


    A Self-Report Measure of Clinicians' Orientation toward Integrative Medicine

    HEALTH SERVICES RESEARCH, Issue 5p1 2005
    An-Fu Hsiao
    Objective. Patients in the U.S. often turn to complementary and alternative medicine (CAM) and may use it concurrently with conventional medicine to treat illness and promote wellness. However, clinicians vary in their openness to the merging of treatment paradigms. Because integration of CAM with conventional medicine can have important implications for health care, we developed a survey instrument to assess clinicians' orientation toward integrative medicine. Study Setting. A convenience sample of 294 acupuncturists, chiropractors, primary care physicians, and physician acupuncturists in academic and community settings in California. Data Collection Methods. We used a qualitative analysis of structured interviews to develop a conceptual model of integrative medicine at the provider level. Based on this conceptual model, we developed a 30-item survey (IM-30) to assess five domains of clinicians' orientation toward integrative medicine: openness, readiness to refer, learning from alternate paradigms, patient-centered care, and safety of integration. Principal Findings. Two hundred and two clinicians (69 percent response rate) returned the survey. The internal consistency reliability for the 30-item total scale and the five subscales ranged from 0.71 to 0.90. Item-scale correlations for the five subscales were higher for the hypothesized subscale than other subscales 75 percent or more of the time. Construct validity was supported by the association of the IM-30 total scale score (0,100 possible range, with a higher score indicative of greater orientation toward integrative medicine) with hypothesized constructs: physician acupuncturists scored higher than physicians (71 versus 50, p<.001), dual-trained practitioners scored higher than single-trained practitioners (71 versus 62, p<.001), and practitioners' self-perceived "integrativeness" was significantly correlated (r=0.60, p<.001) with the IM-30 total score. Conclusion. This study provides support for the reliability and validity of the IM-30 as a measure of clinicians' orientation toward integrative medicine. The IM-30 survey, which we estimate as requiring 5 minutes to complete, can be administered to both conventional and CAM clinicians. [source]


    Diagnosis and Management of Renovascular Disease and Renovascular Hypertension

    JOURNAL OF CLINICAL HYPERTENSION, Issue 5 2007
    Michael J. Bloch MD
    Renovascular disease is a common but complex disorder, the most common causes of which are fibromuscular dysplasia and atherosclerosis. Clinically, it can present as asymptomatic renal artery stenosis, renovascular hypertension, or ischemic nephropathy. Assessing the clinical index of suspicion remains essential in determining an appropriate diagnostic strategy. For diagnosis in patients with suspected fibromuscular disease, it may be reasonable to proceed directly to renal angiography; however, for most patients with suspected atherosclerotic disease, there are a number of noninvasive tests available that can aid in decision making. The choice of the most appropriate initial test should be based on patient characteristics, clinical presentation, and local expertise. Treatment options include medical, surgical, or percutaneous approaches. Generally, in patients with fibromuscular disease, percutaneous intervention provides durable improvement or cure of hypertension. In patients with atherosclerotic disease, the data are less consistent, and there does appear to be a group of patients who will respond well to medical management alone. As technology advances, the diagnostic and treatment paradigms will continue to evolve. [source]


    Treatment Strategies in Non-ST-Elevation Acute Coronary Syndromes in Patients Undergoing Percutaneous Coronary Intervention: An Evidence-Based Review of Clinical Trial Results and Treatment Guidelines: Report on a Roundtable Discussion

    JOURNAL OF INTERVENTIONAL CARDIOLOGY, Issue 4 2008
    F.A.C.C., MARC COHEN M.D.
    With the availability of new data and the recent release of new European and US guidelines, contemporary care paradigms for the treatment of patients with non-ST-elevation acute coronary syndromes (NSTE ACS), including those undergoing percutaneous coronary intervention, are likely to undergo substantial changes. In recognition of this shifting landscape as well as the impact of new guidelines on care models for the treatment of patients with NSTE ACS, a roundtable was convened on October 25, 2007, to discuss the implications of these changes. The purpose of this review is to summarize the presentations and subsequent discussions from the roundtable, which examined the guidelines and evidence from a variety of perspectives, and to explore the best ways to incorporate new treatment paradigms into everyday clinical care. The multiple viewpoints expressed by the roundtable attendees illustrate the recognition that at this point, consensus has not been reached on the optimum algorithm for treatment of these patients. This article focuses on issues discussed during the roundtable from the perspective of the practicing cardiologist. [source]


    A survey of foot problems in juvenile idiopathic arthritis

    MUSCULOSKELETAL CARE, Issue 4 2008
    G. Hendry BSc(Hons)
    Abstract Background:,Evidence suggests that foot problems are common in juvenile idiopathic arthritis (JIA), with prevalence estimates over 90%. The aim of this survey was to describe foot-related impairment and disability associated with JIA and foot-care provision in patients managed under modern treatment paradigms, including disease-modifying anti-rheumatic drugs (DMARDs) and biologic therapies. Methods:,The Juvenile Arthritis Foot Disability Index (JAFI), Child Health Assessment Questionnaire (CHAQ), and pain visual analogue scale (VAS) were recorded in 30 consecutive established JIA patients attending routine outpatient clinics. Foot deformity score, active/limited joint counts, walking speed, double-support time (s) (DS) and step length symmetry index % (SI) were also measured. Foot-care provision in the preceding 12 months was determined from medical records. Results:,Sixty-three per cent of children reported some foot impairment, with a median (range) JAFI subscale score of 1 (0,3); 53% reported foot-related activity limitation, with a JAFI subscale score of 1 (0,4); and 60% reported participation restriction, with a JAFI subscale score of 1 (0,3). Other reported variables were CHAQ 0.38 (0,2), VAS pain 22 (0,79), foot deformity 6 (0,20), active joints 0 (0,7), limited joints 0 (0,31), walking speed 1.09,m/s (0.84,1.38,m/s), DS 0.22,s (0.08,0.26,s) and SI ±4.0% (±0.2,±31.0%). A total of 23/30 medical records were reviewed and 15/23 children had received DMARDS, 8/23 biologic agents and 20/23 multiple intra-articular corticosteroid injections. Ten children received specialist podiatry care comprising footwear advice, orthotic therapy and silicone digital splints together with intrinsic muscle strengthening exercises. Conclusion:,Despite frequent use of DMARD/biologic therapy and specialist podiatry-led foot care, foot-related impairment and disability persists in some children with JIA. Copyright © 2008 John Wiley & Sons, Ltd. [source]


    Taxonomy of pain. (Lehigh Valley Hospital, Center for Pain Management, Allentown, PA) Clin J Pain 2000;16:S114,S117.

    PAIN PRACTICE, Issue 2 2001
    Bruce Nicholson:
    This article discussed the way that research on the pathophysiology of chronic pain has started to challenge the traditional diagnostic and treatment paradigms for the patient with neuropathic pain. It stated that the heterogeneous nature of neuropathic pain indicated that more than one anatomic lesion is most likely responsible for the clinical presentation of a particular syndrome. Conclude that the current taxonomy often falls short of identifying the multifactorial nature of neuropathic pain syndromes and, therefore, may lead to imprecise management of those conditions. It is suggested that an integrated approach to the diagnosis and treatment of neuropathic pain that considers both etiologic factors and possible mechanisms will lead to more effective taxonomy, treatment paradigms, and outcomes. [source]


    Treatment of CML in pediatric patients: Should imatinib mesylate (STI-571, Gleevec) or allogeneic hematopoietic cell transplant be front-line therapy?

    PEDIATRIC BLOOD & CANCER, Issue 5 2004
    Michael A. Pulsipher MD
    Abstract Background Long-term survival of pediatric patients with chronic myelogenous leukemia (CML) receiving myeloablative hematopoietic stem cell transplantation from fully-matched related and unrelated donors has been reported between 60 and 75%, but is associated with significant morbidity. Imatinib mesylate (STI-571, Gleevec) and reduced intensity conditioning stem cell transplantation (RIC) are two promising new tools that offer potential for decreasing therapy associated morbidity for patients with CML. Results Large trials have shown significant responses in chronic phase patients treated with imatinib and reasonable but short-lived responses in advanced phase CML. Data from adult studies is beginning to define populations likely to progress or have prolonged responses to imatinib, and some adult treatment paradigms are moving toward reserving transplantation until patients are at risk of failure with imatinib. Early trials of RIC transplantation in CML show decreased transplant related morbidity with efficacy similar to conventional transplantation, but the approach has yet to be verified in phase III studies. Data in pediatric patients with imatinib and RIC transplantation is limited. Conclusions Studies with imatinib are underway in pediatrics, but whether pediatric dosing schemes will lead to outcomes similar to adults is unknown. Because HLA-matched myeloablative transplantation offers a high rate of cure in the pediatric population, clinical studies assessing the role of imatinib mesylate and RIC transplantation should be planned carefully in order to avoid sub-optimal outcomes. © 2004 Wiley-Liss, Inc. [source]


    Association of a single nucleotide polymorphism in the TIGR/MYOCILIN gene promoter with the severity of primary open-angle glaucoma

    CLINICAL GENETICS, Issue 3 2001
    E Colomb
    Primary open-angle glaucoma (POAG) is a highly prevalent optic neuropathy and a major cause of irreversible blindness, with elevation of intraocular pressure (IOP) being a primary risk factor. The trabecular meshwork-inducible glucocorticoid response (TIGR)/MYOCILIN (MYOC) gene coding region is mutated in 3,4% of POAG patients. Here, in a retrospective study of 142 POAG patients, we evaluated the influence on glaucoma phenotype of a novel biallelic polymorphism (,1000C/G) located in the upstream region of the MYOC gene. Allele frequencies were similar among patients and controls. However, the G allele (frequency 17.6%), also designated as MYOC.mt1, was associated with an increased IOP (+4.9 mmHg, p=0.0004) and a more damaged visual field (p=0.02). Both effects were predominant in females. Moreover, whereas IOP in MYOC.mt1 noncarriers decreased very markedly to the normal range between diagnosis and inclusion in the study (p=3×10,5 in both males and females), reflecting successful therapy, it decreased less noticeably in MYOC.mt1+ male patients (p=0.005) and not at all in MYOC.mt1+ female patients. MYOC.mt1 appears therefore to be an indicator of poor IOP control and greater visual field damage in diagnosed POAG patients, potentially due to a lack of response to therapeutic intervention. Its typing might help in the selection of treatment paradigms for the management of POAG patients. [source]


    Lives in Isolation: Stories and Struggles of Low-income African American Women with Panic Disorder

    CNS: NEUROSCIENCE AND THERAPEUTICS, Issue 3 2009
    Michael Johnson
    Research evidence points to the existence of racial-ethnic disparities in both access to and quality of mental health services for African Americans with panic disorder. Current panic disorder evaluation and treatment paradigms are not responsive to the needs of many African Americans. The primary individual, social, and health-care system factors that limit African Americans' access to care and response to treatment are not well understood. Low-income African American women with panic disorder participated in a series of focus-group sessions designed to elicit (1) their perspectives regarding access and treatment barriers and (2) their recommendations for designing a culturally consistent panic treatment program. Fear of confiding to others about panic symptoms, fear of social stigma, and lack of information about panic disorder were major individual barriers. Within their social networks, stigmatizing attitudes toward mental illness and the mentally ill, discouragement about the use of psychiatric medication, and perceptions that symptoms were the result of personal or spiritual weakness had all interfered with the participants' treatment seeking efforts and contributed to a common experience of severe social isolation. None of the focus-group members had developed fully effective therapeutic relationships with either medical or mental health providers. They described an unmet need for more interactive and culturally authentic relationships with treatment providers. Although the focus-group sessions were not intended to be therapeutic, the women reported that participation in the meetings had been an emotionally powerful and beneficial experience. They expressed a strong preference for the utilization of female-only, panic disorder peer-support groups as an initial step in the treatment/recovery process. Peer-support groups for low-income African American women with panic disorder could address many of the identified access and treatment barriers. [source]