“Background: The chronic kidney disease (CKD)-Epidemiology


“Background: The chronic kidney disease (CKD)-Epidemiology Collaboration (CKD-EPI) equation was developed to address the underestimation of measured glomerular filtration rate (GFR) by the Modification of Diet in Renal Disease (MDRD) equation at levels >60 mL/min/1.73 m(2).

Aim: To assess the impact of the CKD-EPI equation on the estimation of GFR in a large adult UK population (n = 561 400), particularly looking at the effect of age.

Design: Serum creatinine results (ID-MS-aligned enzymatic assay) were extracted from the pathology database during 1 year on adult (epsilon 18 years) patients from primary care.

Methods:

The first available creatinine Transmembrane Transporters result from 174 448 people was used to estimate GFR using both equations and agreement assessed.

Results: Median CKD-EPI GFR was significantly higher than median MDRD GFR (82 vs. 76 mL/min/1.73 m(2), P < 0.0001). Overall mean bias between CKD-EPI

and MDRD GFR was 5.0%, ranging from 13.0% in the 18-29 years age group down to -7.5% in those aged epsilon 90 years. Although statistically Pictilisib solubility dmso significant at all age groups the difference diminished with age and the agreement in GFR category assignment increased. Age-adjusted population prevalence of CKD Stages 3-5 was lower by CKD-EPI than by MDRD (4.4% vs. 4.9%).

Conclusion: CKD-EPI produces higher GFR and lower CKD estimates, particularly among 18-59 year age groups with MDRD estimated GFRs of 45-59 mL/min/1.73 m(2) (Stage 3A). However, at ages > 70 years there is very

little difference between the equations, and among the very elderly CKD-EPI may actually increase CKD prevalence estimates.”
“Heat transfer in a biological system is a complex process and its analysis is difficult. Heterogeneous vascular architecture, blood flow in the complex network of arteries and veins, varying metabolic heat generation rates and dependence of tissue properties on its physiological condition contribute to this complexity. The understanding of heat transfer in human body is important for better insight of thermoregulatory mechanism and physiological conditions. Its understanding is also important for accurate prediction of thermal transport and temperature distribution during biomedical applications. During the last three decades, many attempts have been made MLN2238 supplier by researchers to model the complex thermal behavior of the human body. These models, viz., blood perfusion, countercurrent, thermal phase-lag, porous-media, perturbation, radiation, etc. have their corresponding strengths and limitations. Along with their biomedical applications, this article reviews various contextual issues associated with these models. After brief discussion of early bioheat models, the newly developed bioheat models are discussed in detail. Dependence of these models on biological properties, viz., thermophysical and optical properties are also discussed. (C) 2013 Elsevier Ltd. All rights reserved.

The melatonin precursor serotonin is known to modulate many behav

The melatonin precursor serotonin is known to modulate many behaviours that vary with season. The second part discusses the pathophysiology and clinical specifiers of SAD, which can be seen as a model disorder for chronobiological disturbances and the mechanism of action of VX-809 BLT. In the third part, the mode of action, application, efficacy, tolerability and safety of BLT in SAD and other mood disorders are explored. Copyright (C) 2011 S. Karger AG, Basel”
“Many viruses, including coronaviruses (CoVs), depend on a functional cellular proteasome

for efficient infection in vitro. Hence, the proteasome inhibitor Velcade (bortezomib), a clinically approved anticancer drug, shown in an accompanying study (M. Raaben et al., J. Virol. 84: 7869-7879, 2010) to strongly inhibit mouse hepatitis CoV (MHV) infection in cultured cells, seemed an attractive candidate for testing its antiviral properties in vivo. Surprisingly, however, the drug did not reduce replication of the virus in mice. Rather, inhibition of the proteasome caused enhanced infection with lethal outcome, calling https://www.selleckchem.com/products/8-bromo-camp.html for caution when using this type of drug during infection.”
“Background:

Many trials of transcranial magnetic stimulation (TMS) have used small samples and, therefore, lack power. Here we present an up-to-date meta-analysis of TMS in the treatment of depression. Methods: We searched Medline and Embase from 1996 until 2008 for randomized sham-controlled trials, with patients and investigators blinded to treatment, and outcome measured using a version of the Hamilton Depression Rating Scale (or similar). We identified 1,789 studies. Thirty-one learn more were suitable for inclusion, with a cumulative sample of 815 active and 716 sham TMS courses. Results: We found a moderately sized effect in favour of TMS [Random Effects Model Hedges' g = 0.64, 95% confidence interval (95% CI) = 0.50-0.79]. The corresponding Pooled Peto Odds Ratio for treatment response (<= 50%

reduction in depression scores) was 4.1 (95% CI = 2.9-5.9). There was significant variability between study effect sizes. Meta-regressions with relevant study variables did not reveal any predictors of treatment efficacy. Nine studies included follow-up data with an average follow-up time of 4.3 weeks; there was no mean change in depression severity between the end of treatment and follow-up (Hedges’g = -0.02, 95% CI = -0.22 to +0.18) and no heterogeneity in outcome. Discussion: TMS appears to be an effective treatment; however, at 4 weeks’ follow-up after TMS, there had been no further change in depression severity. Problems with finding a suitably blind and ineffective placebo condition may have confounded the published effect sizes. If the TMS effect is specific, only further large double-blind randomized controlled designs with systematic exploration of treatment and patient parameters will help to define optimum treatment indications and regimen. Copyright (C) 2011 S.

0001) The 1-year survival was 77% for destination therapy compar

0001). The 1-year survival was 77% for destination therapy compared with the Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure left ventricular assist device rate of 52% (P = .036). Adverse events decreased by 38% (3.90 per patient-year in the destination therapy group compared with the Randomized

Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure left ventricular assist device rate of 6.32). Factors related to severity of illness met Randomized Evaluation of Mechanical Assistance for the Treatment of Congestive Heart Failure-like criteria for both groups.

Conclusions: This analysis provides evidence that long-term destination therapy can be improved well beyond the pioneering experience of the Randomized Evaluation of Mechanical Assistance for the Treatment of PD0332991 Congestive Heart Failure trial. With continued evolution of devices, management, and patient selection, outcomes approaching those of heart transplantation may be possible.”
“Objective: We compared conventional treatment with pumpless extracorporeal lung membrane (Interventional Lung Assist [iLA] Novalung; Novalung GmbH, Hechingen, Germany) support in a pig model of postpneumonectomy severe acute respiratory

distress syndrome.

Methods: Adult pigs underwent a left thoracotomy without (group I) or with a left extrapericardial pneumonectomy and radical lymphadenectomy (groups II to V). After stabilization, pigs belonging to group II were observed only, whereas in selleck chemicals llc those belonging to groups III to V, a buy Pritelivir surfactant-depletion severe (PaO2/FIO2 < 100) postpneumonectomy acute respiratory distress syndrome was induced. This was followed by observation (group III); treatment with conventional therapy including protective ventilation, steroids, and nitric oxide (group IV); or femoral arteriovenous iLA Novalung placement, near-static ventilation, steroids, and nitric oxide (group V). Each group included 5 animals. Primary outcome was extubation 12 hours postoperatively

or postpneumonectomy acute respiratory distress syndrome.

Results: A severe postpneumonectomy acute respiratory distress syndrome was obtained after 9 +/- 2 alveolar lavages over 90 +/- 20 minutes. In group V pigs, the iLA Novalung device diverted 17% +/- 4% of the cardiac output, permitted an oxygen transfer and carbon dioxide removal of 298.4 +/- 173.7 mL/min and 287.7 +/- 87.3 mL/min, respectively, and static ventilation (tidal volume, 2.2 +/- 1 mL/kg; respiratory rate, 6 +/- 2.9 breaths/min). All but 1 pig belonging to group V could be extubated compared with none in groups III and IV (P < .01), and only their lungs normalized cytokine release (P < .001) and surfactant (P < .03) and displayed fewer parenchymal lesions (P < .05).

4) No early or late iliac limb occlusions

4). No early or late iliac limb occlusions ABT-737 were noted. Follow-up of 94% was obtained.

Conclusions: Completion arterial duplex scans are helpful in detecting a substantial number of clinically unsuspected technical defects caused by introducer sheaths. Timely diagnosis and repair of these defects may decrease

the incidence of early limb occlusion following endograft placement. (J Vase Surg 2009;50:505-9.)”
“OBJECTIVE: Malignancies of the anterolateral skull base are clinically and pathologically distinct from those of the central anterior skull base and the temporal bone. The purpose of this report is to describe the outcomes and complications after skull base surgery and multimodality therapy in a group of patients with anterolateral skull base malignancies.

PATIENT DATA AND METHODS: The mean duration of follow-up for living patients was 57.2 months (median, 56.8 months). The median age of the 52 patients who met the inclusion criteria for this study was 47 years (range, 1-81 years). The most common presenting feature was cranial nerve palsy (60%). Of these cranial nerve palsies, trigeminal neuropathies causing facial numbness were the most common, with

V2 being affected in 35%, V3 affected in 33%, and V1 affected in 17%. Abducens neuropathy was present in 14% of patients. The most frequently occurring pathologies after the various sarcomas were squamous cell carcinoma (SCC) and adenoid cystic carcinoma (ACC) in 23% and 14% of patients, respectively. Of the 30 sarcomas, 16 were classified as low grade and 14 were find more classified as high grade.

RESULTS: Complications of treatments were identified in 16 patients (31%). Ten patients had a single complication, whereas 6 patients experienced multiple complications. The most common complications were a new or worsened cranial nerve deficit (n = 4), pneumonia (n = 4), and flap necrosis (n = 3). Recurrence after the treatment associated with the index surgery occurred in 37 patients (71%). selleck kinase inhibitor The recurrence was local in 30 patients (58%), both local and distant (metastatic) in 4 patients (8%), and only

distant in 3 patients (12%). The median progression-free survival (PFS) was 2.1 years (range, 1.2-3.0 years). Median PFS times of 0.6 and 1.6 years were noted for patients with high-grade sarcoma (HGS) and low-grade sarcoma (LGS), respectively. The mean PFS (median not reached) for the patients with SCC was 4.6 years, whereas the median PFS for patients with ACC was 3.3 years. The overall 2- and 5-year survivals for all patients were 81% and 53% (median, 5.0 years; 95% confidence interval, 3.9-6.1 years), respectively. The median survival for patients with non-sarcomas was 6.9 years, the 2-year survival was 82%, and the 5-year survival was 55%. Patients with HGS survived the shortest time (median, 3.3 years; 2-year, 64%; 5-year, 27%), whereas those patients with LGS had an intermediate survival (median, 5.3 years; 2-year, 94%,5-year, 72%).

The approach, named ‘Viral Tiling Theory’,

is inspired by

The approach, named ‘Viral Tiling Theory’,

is inspired by the theory of quasicrystals, where aperiodic Penrose tilings enjoy 5-fold and 10-fold local symmetries. This paper analyses the extent to which this classification approach informs dynamical properties of the viral capsids, in particular the pattern of Raman active modes of vibrations, which can be observed experimentally. (C) 2008 Elsevier Ltd. All rights reserved.”
“Background interleukins 12 and 23 have important roles in the pathophysiology of psoriasis. We assessed ustekinumab, a human monoclonal antibody directed against these cytokines, for the treatment of psoriasis.

Methods In this phase III, parallel, double-blind, placebo-controlled study, 766 patients with JQ1 mouse moderate-to-severe psoriasis were randomly assigned to receive ustekinumab 45 mg (n=255)

or 90 mg (n=256) at weeks 0 and 4 and then every 12 weeks; or placebo (n=255) at weeks 0 and 4, with subsequent crossover to ustekinumab at week 12. Patients who were initially randomised to receive ustekinumab at week 0 who achieved long-term response (at least 75% improvement in psoriasis area and severity index [PASI 75] at weeks 28 and 40) were re-randomised at week 40 to maintenance ustekinumab or withdrawal from treatment until loss of response. Both randomisations were done with a minimisation method via a centralised interactive voice response system. The primary endpoint Crenolanib in vitro was the proportion of patients

achieving PASI 75 at week 12. Analyses were by intention to treat. This study is registered with ClinicalTrials.gov, number NCT00267969.

Findings All randomised patients were included in the efficacy analysis. 171 (67.1%) patients receiving ustekinumab 45 mg, 170 (66.4%) receiving https://www.selleck.cn/products/blu-285.html ustekinumab 90 mg, and eight (3.1%) receiving placebo achieved PASI 75 at week 12 (difference in response rate vs placebo 63.9%, 95% CI 57.8-70.1, p < 0.0001 for 45 mg and 63.3%, 57.1-69.4, p < 0.0001 for 90 mg). At week 40, long-term response had been achieved by 150 patients in the 45 mg group and 172 patients in the 90 mg group. Of these, 162 patients were randomly assigned to maintenance ustekinumab and 160 to withdrawal. PASI 75 response was better maintained to at least 1 year in those receiving maintenance ustekinumab than in those withdrawn from treatment at week 40 (p<0.0001 by log-rank test). During the placebo-controlled phase, adverse events occurred in 278 (54.5%) of the 510 patients receiving ustekinumab and 123 (48.2%) of the 255 receiving placebo. Serious adverse events occurred in six (1.2%) of 510 patients receiving ustekinumab and in two (0.8%) of 255 receiving placebo in this phase. The pattern of adverse events was much the same in the placebo crossover and randomised withdrawal phases as it was in the placebo-controlled phase.

The existing, licensed vaccines based on live vaccinia virus (VAC

The existing, licensed vaccines based on live vaccinia virus (VACV) are contraindicated for a substantial number of people, and prophylactic vaccination of large populations is not reasonable when there is little risk of exposure. Consequently, there is an emerging need to develop efficient and safe therapeutics to be used shortly before or after exposure, either alone or in combination

with vaccination. We have characterized the human antibody response to smallpox vaccine (VACV Lister) in immunized volunteers and isolated a large number of VACV-specific antibodies that recognize a variety of different VACV antigens. Using this broad antibody panel, we have generated a fully human, recombinant analogue to plasma-derived vaccinia immunoglobulin (VIG), which mirrors the diversity and specificity A-1155463 research buy of the human antibody immune response and offers the advantage of unlimited

supply and reproducible specificity and activity. The recombinant VIG was found to display a high specific binding activity toward VACV antigens, potent in vitro VACV neutralizing activity, and a highly protective efficacy against VACV challenge in the mouse tail lesion model when given either prophylactically or therapeutically. Altogether, the results suggest that this compound has the potential to be used as an effective postexposure prophylaxis or treatment of disease caused by orthopoxviruses.”
“Background

Acute exacerbations adversely affect OSI-744 clinical trial patients Selleckchem AZD9291 with chronic obstructive pulmonary disease (COPD). Macrolide antibiotics benefit patients with a variety of inflammatory airway diseases.

Methods

We performed a randomized trial to determine whether azithromycin decreased the frequency of exacerbations

in participants with COPD who had an increased risk of exacerbations but no hearing impairment, resting tachycardia, or apparent risk of prolongation of the corrected QT interval.

Results

A total of 1577 subjects were screened; 1142 (72%) were randomly assigned to receive azithromycin, at a dose of 250 mg daily (570 participants), or placebo (572 participants) for 1 year in addition to their usual care. The rate of 1-year follow-up was 89% in the azithromycin group and 90% in the placebo group. The median time to the first exacerbation was 266 days (95% confidence interval [CI], 227 to 313) among participants receiving azithromycin, as compared with 174 days (95% CI, 143 to 215) among participants receiving placebo (P < 0.001). The frequency of exacerbations was 1.48 exacerbations per patient-year in the azithromycin group, as compared with 1.83 per patient-year in the placebo group (P = 0.01), and the hazard ratio for having an acute exacerbation of COPD per patient-year in the azithromycin group was 0.73 (95% CI, 0.63 to 0.84; P< 0.001). The scores on the St.

(C) 2010 Elsevier Ireland Ltd All rights reserved “
“To tes

(C) 2010 Elsevier Ireland Ltd. All rights reserved.”
“To test the impact of increased mitochondrial oxidative stress as a mechanism underlying aging and age-related pathologies, we generated mice with a combined deficiency in two mitochondrial-localized antioxidant enzymes, Mn superoxide dismutase (MnSOD) and glutathione AZD3965 manufacturer peroxidase-1 (Gpx-1). We compared life span, pathology, and oxidative damage in Gpx1(-/)-, Sod2(+/)-Gpx1(+/)-,

Sod2(+/)-Gpx1(-/)-, and wild-type control mice. Oxidative damage was elevated in Sod2(+/)-Gpx1(-/)-mice, as shown by increased DNA oxidation in liver and skeletal muscle and increased protein oxidation in brain. Surprisingly, Sod2(+/)-Gpx1(-/)- mice showed no reduction in life span, despite increased levels of oxidative damage. Consistent with the important role for oxidative stress in tumorigenesis during aging, the incidence of neoplasms was significantly increased in the older Sod2(+/)-Gpx1(-/)-mice (28-30 months). Thus, these data do not support a significant role for increased oxidative stress as a result of compromised mitochondrial antioxidant defenses in modulating life span in mice and do not support

the oxidative stress theory of aging.”
“Interhemispheric transfer time (IHTT) is an important parameter for research on the information conduction time across the corpus callosum between the two hemispheres. There this website are several traditional methods

used to estimate the IHIT, including the reaction Nirogacestat order time (RT) method, the evoked potential (EP) method and the measure based on the transcranial magnetic stimulation (TMS). The present study proposes a novel coded VEP method to estimate the IHTT based on the specific properties of the m-sequence. These properties include good signal-to-noise ratio (SNR) and high noise tolerance. Additionally, calculation of the circular cross-correlation function is sensitive to the phase difference. The method presented in this paper estimates the IHTT using the m-sequence to encode the visual stimulus and also compares the results with the traditional flash VEP method. Furthermore, with the phase difference of the two responses calculated using the circular cross-correlation technique, the coded VEP method could obtain IHTT results, which does not require the selection of the utilized component. (C) 2010 Elsevier Ireland Ltd. All rights reserved.”
“Neural progenitors in the ventricular zone of the developing neocortex divide oriented either parallel or perpendicular to the ventricular surface based on their mitotic spindle orientation. It has been shown that the cleavage plane orientation is developmentally regulated and plays a crucial role in cell fate determination of neural progenitors or the maintenance of the proliferative ventricular zone during neocortical development.

o ) Importantly, both classical (haloperidol) and atypical (olan

o.). Importantly, both classical (haloperidol) and atypical (olanzapine, clozapine and aripiprazole) antipsychotics were effective in all these models of hyperactivity. However, unlike these latter, SSR103800 did not produce catalepsy (retention on the bar test) up to 30 mg/kg p.o. Together these findings show that the GlyT1 inhibitor, AZD1080 nmr SSR103800, produces antipsychotic-like effects, which differ from those observed with compounds primarily targeting the dopaminergic system, and has a reduced side-effect potential

as compared with these latter drugs. Neuropsychopharmacology (2010) 35, 416-427; doi: 10.1038/npp.2009.144; published online 16 September 2009″
“Aberrant activation of the immune system has been implicated in an increasingly large number of disease states and can influence cognition, mood, and memory. There is a long and controversial history of

reports of immune activation associated with schizophrenia. In this study, we measured mitogen-stimulated cytokine levels serially in 100 medication-stabilized continuously ill subjects with schizophrenia and compared and contrasted them with mitogen-stimulated cytokine levels from 51 normal volunteers. The subjects with schizophrenia had consistently higher mitogen-stimulated IL-2 levels and lower IL-6 levels than the normal volunteers. These effects could not be explained by medications, smoking, or other clinical variables. We conclude that continuously symptomatic medication-stabilized subjects with schizophrenia have a mitogen-stimulated

cytokine expression pattern that is suggestive of ongoing immune GSK461364 chemical structure activation. Neuropsychopharmacology (2010) 35, 428-434; doi: 10.1038/npp.2009.145; published online 16 September 2009″
“Central serotonergic (5-HT) activity has long been implicated in the regulation of impulsive aggressive behavior. This study was performed to use a highly selective agent for 5-HT (d-Fenfluramine, d-FEN) in a large group of human subjects to further explore this relationship dimensionally and categorically. One hundred and fifty healthy subjects (100 with personality disorder, PD and 50 healthy volunteer controls, HV) underwent d-FEN challenge studies. Residual peak delta prolactin (DPRL[d-FEN]-R; this website ie, after the removal of potentially confounding variables) was used as the primary 5-HT response variable. Composite measures of aggression and impulsivity were used as dimensional measures, and history of suicidal/self-injurious behavior as well as the presence of intermittent explosive disorder (IED) were used as categorical variables. DPRL[d-FEN]-R responses correlated inversely with composite aggression, but not composite impulsivity, in all subjects and in males and females examined separately. The correlation with composite aggression was strongest in male PD subjects.

(J Thorac Cardiovasc Surg

2011;142:1374-80)”
“Backgr

(J Thorac Cardiovasc Surg

2011;142:1374-80)”
“Background. Little is known about the effects of adult attention AG-120 purchase deficit hyperactivity disorder (ADHD) on work performance or accidents-injuries.

Method. A survey was administered in 2005 and 2006 to employees of a large manufacturing firm to assess the prevalence and correlates of adult ADHD. Respondents (4140 in 2005, 4423 in 2006, including 2656 in both surveys) represented 35-38% of the workforce. ADHD was assessed with the World Health Organization (WHO) Adult ADHD Self-Report Scale (ASRS), a validated screening scale for DSM-IV adult ADHD. Sickness absence, work performance and workplace accidents-injuries were assessed with the WHO Health and Work Performance Questionnaire (HPQ).

Results. The estimated current prevalence (standard error) of DSM-IV ADHD was 1.9% (0.4). ADHD was associated with a 4-5% reduction in work performance (chi(2)(1) = 9.1, p = 0.001), a 2.1 relative-odds of sickness absence (chi(2)(1)

= 6.2, p = 0.013), and a 2.0 relative-odds of workplace accidents-injuries (chi(2)(1) = 5.1, p = 0.024). The human capital value (standard error) of the lost work performance associated with ADHD totaled US$4336 (676) per worker with ADHD in the year before interview. No data were available to monetize other workplace costs of accidents-injuries (e.g. destruction of equipment). Only a small minority of workers with ADHD were in treatment.

Conclusions. Adult ADHD is a significantly impairing condition among workers. Given the low rate of treatment and high human capital costs, in conjunction Selleck Idasanutlin with evidence from controlled trials that treatment can reduce ADHD-related impairments, ADHD Would seem to be a good candidate for workplace trials that

evaluate treatment cost-effectiveness from the employer’s perspective.”
“Introduction: We previously demonstrated MORF/cMORF pretargeting of human islets and betalox 5 cells (a human beta cell line) JQ1 concentration transplanted subcutaneously in mice with the anti-human islet antibody, HPil. We now compare pretargeting with direct targeting in the beta cell transplant model to evaluate the degree to which target/non-target (T/NT) ratios may be improved by pretargeting.

Methods: Specific binding of an anti-human islet antibody HPil to the beta cells transplanted subcutaneously in mice was examined against a negative control antibody. We then compared pretargeting by MORF-HPil plus In-111-labeled cMORF to direct targeting by In-111-labeled HPil.

Results: HPil binding to betalox5 human cells in the transplant was shown by immunofluorescence. Normal organ In-111 backgrounds by pretargeting were always lower, although target accumulations were similar. More importantly, the transplant to pancreas and liver ratios was, respectively, 26 and 10 by pretargeting as compared to 9 and 0.6 by direct targeting.

Because a genotype-mediated difference only arises following gona

Because a genotype-mediated difference only arises following gonadectomy, the chromosomal contribution to myelination and remyelination is subtle yet significant. To explain this difference, we propose a possible asymmetry in the expression of myelination-related genes in XX vs. XY mice

that needs to be investigated in future studies. (C) 2013 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Attention-deficit/hyperactivity disorder (ADHD) is one of the most common childhood neuropsychiatric disorders. Based on neuroimaging studies, the striatum is reported to be abnormal in size, but it is still not clear how they change during developmental stages. Spontaneously hypertensive rats (SHRs) are the commonly used animal model for ADHD. We investigated volume differences of the striatum at various ages before puberty in SHRs versus a control Selleckchem AZD1080 strain, Wistar-Kyoto rats (WKYs). Volumes of the bilateral striatum were measured using micrographs of Nissl-stained serial sections in both strains of rats at the ages of 4, 5, 6, 7, 8, 9, and 10 weeks (n

= 4, each strain at each age). The results demonstrated that the age of a significant striatal volume difference between SHRs and WKYs was 5 weeks; however, there was no significant difference for the corresponding total brain volume, at each matched age. It suggested that the timing for striatal abnormalities in ADHD occurs during an early stage of childhood. Ilomastat clinical trial (C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“Background Published work assessing psychosocial stress (job strain) as a risk factor for coronary heart disease is inconsistent and subject to publication bias and reverse causation bias. We analysed the relation between job strain and coronary heart disease with a meta-analysis of

published and unpublished studies.

Methods We used individual records from 13 European cohort studies (1985-2006) of men and women without coronary heart disease who were employed at time of baseline assessment. We measured job strain with questions from validated job-content and demand-control questionnaires. We extracted data in two stages such that acquisition and harmonisation of job strain measure and covariables occurred before linkage to records for coronary heart disease. We defined incident coronary heart disease as the first non-fatal myocardial infarction or Dichloromethane dehalogenase coronary death.

Findings 30 214 (15%) of 197 473 participants reported job strain. In 1.49 million person-years at risk (mean follow-up 7.5 years [SD 1.7]), we recorded 2358 events of incident coronary heart disease. After adjustment for sex and age, the hazard ratio for job strain versus no job strain was 1.23 (95% CI 1.10-1.37). This effect estimate was higher in published (1.43, 1.15-1.77) than unpublished (1.16, 1.02-1.32) studies. Hazard ratios were likewise raised in analyses addressing reverse causality by exclusion of events of coronary heart disease that occurred in the first 3 years (1.31, 1.15-1.48) and 5 years (1.