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Exposure to persistent organic pollutants and sperm DNA methylation changes in Arctic and European populations.

Persistent organic pollutants (POPs), such as PCBs (polychlorinated biphenyls) and DDT [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane], are environmental contaminants with potential endocrine disrupting activity. DNA methylation levels in peripheral blood lymphocytes have been associated with serum concentrations of POPs in Greenland Inuit and Korean populations. Greenland Inuits are characterized

Treatment of haemophilia A and B and von Willebrand's disease: summary and conclusions of a systematic review as part of a Swedish health-technology assessment.

Summary. In an ongoing health-technology assessment of haemophilia treatment in Sweden, performed by the governmental agency Dental and Pharmaceutical Benefits Agency (TLV; tandva˚rds-och lākemedelsförma˚nsverket), the Swedish Council on Health Technology Assessment (SBU; statens beredning för medicinsk utvārdering) was called upon to evaluate treatment of haemophilia A and B and von Willebrand's

An operational calculus for matrix-exponential disributions, with applicaions to a Brownian (q,Q) inventory model

distribution G on [math not displayed] is called matrix-exponential if the density has the form αeTz s where α is a row vector, T a square matrix and s a column vector. Equivalently, the Laplace transform is rational. For such distributions, we develop an operator calculus, where the key step is manipulation of analytic functions f(z) extended to matrix arguments. The technique is illustrated via

Cancer among patients with diabetes, obesity and abnormal blood lipids: a population-based register study in Sweden.

OBJECTIVE: To study how the incidence of cancer is related to diabetes, obesity or abnormal blood lipids. METHODS: Diagnosis of diabetes, obesity or abnormal blood lipids was studied 0-10 years prior to the diagnosis of cancer in 19,756 cases of cancer and in 147,324 controls matched regarding age, sex and domicile. RESULTS: Diabetes was significantly more common prior to diagnosis in patients w

Detection of neurocan in cerebrospinal fluid.

Cerebrospinal fluid (CFS) is the most easily accessible component of the human central nervous system and has been successfully used for the analysis of disease-associated molecular imbalances, particularly for extracellular matrix components. Alterations in the presence of the nervous system-associated chondroitin sulfate proteoglycan neurocan had been reported from active multiple sclerosis lesi

Evaluation of accuracy and applicability of protein models: retrospective analysis of biological and biomedical predictions.

In order to study protein function and activity structural data is required. Since experimental structures are available for just a small fraction of all known protein sequences, computational methods such as protein modelling can provide useful information. Over the last few decades we have predicted, with homology modelling methods, the structures for numerous proteins. In this study we assess t

Effect of charge on microvascular permeability in early experimental sepsis in the rat.

A key feature of sepsis is hypovolemia due to increased microvascular permeability. It has been suggested that the negative charge of albumin and of the endothelial glycocalyx is important for maintenance of the normally low permeability for albumin. Here we tested the hypothesis that charge effects contribute to the increased permeability in sepsis. Transcapillary escape rate (TER) and initial di

Lidar Measurements of Atmospheric Mercury

Mercury is the only atmospheric pollutant that is present in the atmosphere in atomic form. The optical resonance line at 254 nm can be used for absorption measurements using different optical remote sensing techniques. Range-resolved Hg mapping can be performed using the differential absorption lidar (DIAL) technique. We have used the lidar technique both for mapping of industrial plumes and for

C-reactive protein: vascular risk marker in elderly patients with mental illness.

BACKGROUND: There is increasing evidence that vascular disease contributes to cognitive impairment and dementia. Clarification of the role of vascular risk factors in dementia is important because most are modifiable, in contrast to other risk factors such as age and genetics. METHODS: In 428 patients with mental illness we have investigated the relation of vascular disease to diagnoses, and a bio

Screening Detects a High Proportion of Celiac Disease in Young HLA-genotyped Children.

BACKGROUND AND AIMS:: Celiac disease is associated with tissue transglutaminase autoantibodies (tTGAb) and the human leukocyte antigen (HLA)-risk alleles DQB1*02 and DQB1*0302. The aim was to estimate the proportion of undiagnosed celiac disease in children with HLA risk at 3 years of age. PATIENTS AND METHODS:: From a population-based HLA-DQ screening study of newborns born between June 2001 and

Genes encoding WFDC- and Kunitz-type protease inhibitor domains: are they related?

We have previously demonstrated that the genes of SCPs (semen coagulum proteins) and the WFDC (whey acidic protein four-disulfide core)-type protease inhibitor elafin are homologous in spite of lacking similarity between their protein products. This led to the discovery of a locus on human chromosome 20, encompassing genes of the SCPs, SEMG1 (semenogelin I) and SEMG2, and 14 genes containing the s

Parity in relation to survival following breast cancer.

AIM: The present study examines the association between parity and survival following breast cancer diagnosis. METHODS: Medical records of 4453 women diagnosed with breast cancer in Malmö, Sweden, between 1961 and 1991 were analysed. All women were followed until 31 December 2003, using the Swedish Cause-of-Death Registry. Breast cancer specific mortality rate was calculated in different levels of