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Increased mitogenicity of an alphabeta heterodimeric PDGF receptor complex correlates with lack of RasGAP binding

The different platelet-derived growth factor (PDGF) isoforms cause activation of their alpha and beta protein tyrosine kinase receptors through dimerization. Homodimerization as well as heterodimerization of receptors occur. It has been shown previously that the heterodimeric receptor complex mediates a stronger mitogenic response than either of the homodimeric complexes. In this report, we show t

Defective insulin secretion by chronic glucagon receptor activation in glucose intolerant mice.

Stimulation of insulin secretion by short-term glucagon receptor (GCGR) activation is well characterized, however, the effect of long-term GCGR activation on beta-cell function is not known, but of interest, since hyperglucagonemia occurs early during development of type 2 diabetes. Therefore, we examined whether chronic GCGR activation affects insulin secretion in glucose intolerant mice. To indu

Enrollment experiences in a pediatric longitudinal observational study: The Environmental Determinants of Diabetes in the Young (TEDDY) study.

OBJECTIVE: Our objective was to identify characteristics of infants and their families who were enrolled, refused to enroll, or were excluded from The Environmental Determinants of Diabetes in the Young (TEDDY) study. METHOD: 16,435 infants screened at birth and identified as at increased genetic risk for type 1 diabetes (T1DM) were placed into one of three categories: enrolled, excluded, or refus

Scandinavian rational choice sociology

The present status of rational choice sociology in Scandinavia is discussed in the form of a review, examining representative work and highlighting important scholars. Despite a reputation of having a strong Scandinavian rational choice tradition, rational choice sociology is practically non-existent in Denmark, Finland and Iceland. Rational choice sociology in Scandinavia is by-and-large concentr

The current distribution on a circular disc

In this paper we derive the surface-current distribution on a perfectly conducting circular disc. The current is obtained by calculating the limit of the surface currents on an oblate spheroid as the thickness goes to zero. The null-field approach is used. We show that it is possible to calculate all quantities in terms of the spherical basis functions, thus avoiding the cumbersome spheroidal basi

Quantitative interpretation of gold nanoparticle-based bioassays designed for detection of immunocomplex formation

The authors present in this paper how the extended Mie theory can be used to translate not only end-point data but also temporal variations of extinction peak-position changes, peak(t), into absolute mass uptake, (t), upon biomacromolecule binding to localized surface plasmon resonance (SPR) active nanoparticles (NPs). The theoretical analysis is applied on a novel sensor template composed of a th

The t(X;7)(q22;q34) in paediatric T-cell acute lymphoblastic leukaemia results in overexpression of the insulin receptor substrate 4 gene through illegitimate recombination with the T-cell receptor beta locus.

Summary The t(X;7)(q22;q34), a translocation not previously reported in a neoplastic disorder, was identified and molecularly characterised in a paediatric T-cell acute lymphoblastic leukaemia (T-ALL), subsequently shown also to harbour a deletion of 6q, a STIL/TAL1 fusion and an activating NOTCH1 mutation. The t(X;7) was further investigated using fluorescence in situ hybridisation (FISH), real-t

Repeated electroconvulsive seizures increase the number of vessel-associated macrophages in rat hippocampus.

OBJECTIVES: We have previously reported that electroconvulsive seizure (ECS)-an animal model of the antidepressant treatment electroconvulsive therapy-causes glial cell activation in hippocampus and other limbic areas. In the current study, we have investigated whether the cellular response to ECS includes recruitment and infiltration of nonresident macrophages into the hippocampal brain parenchym

The cognitive profile and CSF biomarkers in dementia with Lewy bodies and Parkinson's disease dementia.

Dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) may be viewed as different points on a continuum reflecting the regional burden and distribution of pathology. An important clinical consideration is overlapping Alzheimer's disease (AD) pathology, since it has been reported that associated AD pathology in DLB shortens survival and leads to a more rapid cognitive decline. We ai

Anthropometric factors and ovarian cancer risk in the Malmö Diet and Cancer Study.

Objective: To examine the associations of measured anthropometric factors, including general and central adiposity, with epithelial ovarian cancer (EOC) risk in the Malmö Diet and Cancer Study. Methods: In 93 incident EOC cases from a Swedish population-based prospective cohort study, seven anthropometric factors; height, weight, BMI, body fat percentage, waist- and hip circumference, and waist-hi

Use of statins in patients with liver disease.

Statins are generally well tolerated and shown to have a good safety profile. In clinical trials a similar proportion of patients randomized to statins and placebo treated developed abnormal liver tests. However, idiosyncratic drug-induced liver injury (DILI) is a rare adverse reaction and clinical trials are underpowered to detect uncommon side effects. Although probably very rare, idiosyncratic

Diastolic dysfunction is associated with sedentary leisure time physical activity and smoking in females only.

OBJECTIVES: Left ventricular diastolic dysfunction with preserved systolic function (DD-PSF) is associated with an increased risk of morbidity and mortality. Population-based surveys studying the associations between DD-PSF and lifestyle-associated risk factors, such as leisure time physical activity (LTPA) and smoking, are scarce. Thus, the aims were to explore the associations between DD-PSF and

Exposure to cadmium and persistent organochlorine pollutants and its association with bone mineral density and markers of bone metabolism on postmenopausal women.

Environmental contaminants such as cadmium and persistent organochlorine pollutants have been proposed as risk factors of osteoporosis, and women may be at an increased risk. To assess associations between exposure to cadmium and two different POPs (2,2',4,4',5,5'-hexachlorobiphenyl CB-153, 1,1-dichloro-2,2-bis(p-chlorophenyl)-ethylene p,p'-DDE), on one hand, and bone effects, on the other, in a p

Impaired nerve regeneration and Schwann cell activation after repair with tension.

The aim was to investigate the relation between axonal outgrowth (neurofilaments) and Schwann cell activation (activating transcription factor 3) and apoptosis (caspase 3) 10 days after nerve repair with no, minor (3 mm defect) and moderate (6 mm defect) tension in rat sciatic nerve using immunohistochemistry. After repair with no tension, axons grew 11.75 mm, but repair with minor and moderate te

The burden of ankylosing spondylitis in Spain.

OBJECTIVE: To investigate the burden of ankylosing spondylitis (AS) in Spain, as baseline for economic evaluation of the use of biological agents. METHODS: A cross-sectional retrospective observational study was performed in 601 patients with AS in Spain, using a methodology developed in studies in the United Kingdom and Canada. Patients were mailed a questionnaire asking about their health-care c

Mild hypothermia reduces acute mortality and improves hemodynamic outcome in a cardiogenic shock pig model.

INTRODUCTION: Cardiogenic shock is the main cause of death in patients hospitalized due to an acute myocardial infarction. Mild hypothermia reduces metabolism and could offer protective effects for this condition. The aim of our study was to investigate if mild therapeutic hypothermia would improve outcome and hemodynamic parameters in an ischemic cardiogenic shock pig model. METHODS: Twenty-five