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Glucagon receptor antagonism improves islet function in mice with insulin resistance induced by a high-fat diet.

Aims/hypothesis Increased glucagon secretion predicts deterioration of glucose tolerance, and high glucagon levels contribute to hyperglycaemia in type 2 diabetes. Inhibition of glucagon action may therefore be a potential novel target to reduce hyperglycaemia. Here, we investigated whether chronic treatment with a glucagon receptor antagonist (GRA) improves islet dysfunction in female mice on a h

Recent findings shed light on the aetiopathogenesis of Sjogren's syndrome

Abstract in German Das systemische klinische Bild der Patienten mit SS kann auf eine Disposition vieler Zellarten zurückgeführt werden, bei einer Konfrontation mit Stressreizen überzureagieren. Dies beeinflusst die elementaren zellulären Vorgänge wie Apoptose und Acethylcholine-Rezeptor-Signalvermittlung. Diese Hyperreaktivität des Gewebes kann auch die beobachteten autoimmunogenen Eigenschaften eThe systemic clinical picture of SS patients can be traced back to a disposition of many cell types to over-react when confronted with stress stimuli. This will influence basic cellular processes such as apoptosis and acetylcholine receptor signaling. This tissue hyper-reactivity may also explain the observed autoimmune features, and may constitute a major aetiopathogenetic determinant in SS.

Classifying diabetes according to the new WHO clinical stages.

Aims/Hypothesis: To test the usefulness of the new WHO criteria for clinical staging of diabetes in the characterization of 1977 diabetic patients. Methods: The following clinical stages were used: patients on diet and/or oral antidiabetic agents 2 years after diagnosis were considered as non-insulin requiring (NIR; n = 711) and patients who required insulin therapy after 1 year as insulin requiri

The fragile X tremor ataxia syndrome in the differential diagnosis of multiple system atrophy: data from the EMSA Study Group

The recent identification of fragile X-associated tremor ataxia syndrome (FXTAS) associated with premutations in the FMR1 gene and the possibility of clinical overlap with multiple system atrophy (MSA) has raised important questions, such as whether genetic testing for FXTAS should be performed routinely in MSA and whether positive cases might affect the specificity of current MSA diagnostic crite

Monitor – biology

The hottest developments in the fields of cancer research, neuroscience, genomics and proteomics, anti-virals and more, with a pick of the key research papers in these areas.

Expression patterns of two new members of the Semaphorin family in Drosophila suggest early functions during embryogenesis

We report the sequence and expression analysis of two new Drosophila members of the Semaphorin family. Both proteins show the presence of Semaphorin domains and transmembrane domains. Both genes are expressed maternally and in embryos, and reveal distinct expression patterns much earlier than the onset of neurogenesis. We also present an overview of the domain structure of all so far known semapho

Use of digital thruster to separate the cadmium and lead metals from mixture sample

The present work deals with the use of a digital thruster (DT) for the separation of cadmium and lead metals from mixture samples. Mixtures of lead and cadmium salts with varying concentrations were injected into a free electrolytic diffusion apparatus (FEDA). The microcathodes surrounding the central anode were programmed witha DT. The DT distributed the charge over the microcathodes at time inte

Full-length HERV-H elements with env SU open reading frames in the human genome

Human endogenous retroviruses (HERVs) are estimated to represent at least 1% of the human genome. An HERV-H env SU sequence (HERV-H19) was used to screen the high-throughput (htgs) and nonredundant (nr) databases for other HERV-H SU open reading frames (ORFs) and thus possible functional proteins. Using PCR with primers derived from HERV-H19 SU, we also obtained several new sequences with ORFs fro

The Malmo-Klaipeda WFH twinning programme: a comparative description of the haemophilia cohorts

In 1994, the Malmo-Klaipeda twinning programme was approved by the World Federation of Hemophilia. One of the first steps in the collaboration has been to set up a registry of the haemophilia patients in the Klaipeda area. In order to collect important clinical data the patients have been examined jointly by experts on haemophilia from the two centres. Seventeen out of 25 patients with severe haem

Thrombin-mediated proteolysis of factor V resulting in gradual B-domain release and exposure of the factor Xa-binding site.

To investigate the relationship between the individual thrombin-cleavages in factor V (FV) and the generation of FXa-cofactor activity, recombinant FV mutants having the cleavage sites eliminated separately or in combination were used. After thrombin incubation, the ability of the FV variants to bind FXa and support prothrombin activation was tested. The interaction between FVa and FXa on the surf

The contribution of genetic variations of aryl hydrocarbon receptor pathway genes to male factor infertility

Objective: To determine whether the polymorphisms in aryl hydrocarbon receptor (AHR), aryl hydrocarbon receptor repressor (AHRR), and aryl hydrocarbon receptor nuclear translocator (ARNT) genes are associated with male factor infertility. Design: An association study. Setting: University research laboratory and andrology clinic. Patient(s): The subjects were infertile Estonian men (n = 112) with a

Bridge-splitting Kinetics, Equilibria and Structures of trans-bis-cyclooctene Complexes of Platinum(II)

Cyclooctene (C8H14, cot) complexes of platinum(II) have been synthesised and characterised by means of multinuclear NMR, UV-Vis spectroscopy and X-ray crystallography. The bridge-splitting equilibrium constants of the dinuclear, chloride-bridged trans-[PtCl2(cot)]2, 1, in dichloromethane solvent at 298 K with MeOH, MeCN and cot, yielding trans-[PtCl2(cot)(MeOH)], 2, trans-[PtCl2(cot)(MeCN)], 3, an

Two-Year Outcome of Alcohol Interventions in Swedish University Halls of Residence: A Cluster Randomized Trial of a Brief Skills Training Program, Twelve-Step-Influenced Intervention, and Controls.

Background: High-risk alcohol consumption among university students is well documented. Several types of intervention have proved to be effective in reducing alcohol consumption. This study examines the 2-year outcome of 2 different alcohol intervention programs at university halls of residence. Methods: Ninety-eight university halls of residence (with 556 students) were cluster randomized to 2 d

Toll-like receptor 9 acts at an early stage in host defence against pneumococcal infection

Toll-like receptor 9 (TLR9) induces an inflammatory response by recognition of unmethylated CpG dinucleotides, mainly present in prokaryotic DNA. So far, TLR9-deficient mice have been shown to be more sensitive than wild-type mice to viral, but not to bacterial infections. Here, we show that mice deficient in TLR9 but not in TLR1, TLR2, TLR4 and TLR6 or IL-1R/IL-18R are more susceptible to a respi

Autopsy-verified venous thromboembolism within a defined urban population--the city of Malmo, Sweden

OBJECTIVE: To analyse the frequency of autopsy-proven venous thromboembolism within a defined region and evaluate if certain risk groups not earlier recognized could be found. The incidence of objectively diagnosed venous thromboembolism was also calculated. SETTING: The city of Malmo, Sweden, with 230,000 inhabitants. MAIN OUTCOME MEASURE: Analysis of 2,356 autopsies for the year 1987 of deceased

Relationships between housing and healthy aging in very old age

Purpose: The aim of this work is to examine the relationship between aspects of objective and perceived housing and aspects of healthy aging, defined as independence in daily activities and subjective wellbeing. Furthermore, this research examined the comparability of relationships between housing and healthy aging in the five European countries. Design and Methods: Data were drawn from the ENABLE

Identification of ABR-215050 as lead second generation quinoline-3-carboxamide anti-angiogenic agent for the treatment of prostate cancer.

BACKGROUND Linomide, Figure 1, produces robust and consistent in vivo growth inhibition of prostate cancer models via its anti-angiogenic activity and inhibition of autoimmune encephalomyelitis models of multiple sclerosis (MS). MS clinical trials were discontinued because of unacceptable toxicity, due to dose-dependent induction of proinflammation. METHODS Therefore, linomide analogs were initia

Autonomic modulation of the atrial cycle length by the head up tilt test: non-invasive evaluation in patients with chronic atrial fibrillation

OBJECTIVE: To determine the effects of upright posture compared with supine position on the dominant atrial cycle length (DACL) in patients with chronic atrial fibrillation. DESIGN: The power/frequency spectrum of QRST suppressed lead V1 ECG was studied in 14 patients in the supine position and during the head up tilt table test. The DACL changes were compared with changes in heart rate and blood