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Background Glutathione is found primarily in eukaryotes and in Gram-negative bacteria. It has been proposed that eukaryotes acquired the genes for glutathione biosynthesis from the alpha-proteobacterial progenitor of…
Updated Oct 29, 2026
HealthData.Gov
Background Acetylcholine receptors become aggregated at the developing neuromuscular synapse shortly after contact by a motorneuron in one of the earliest manifestations of synaptic development. While a major…
Updated Oct 29, 2026
HealthData.Gov
A moribund and debilitated patient arrives in an emergency department and is placed on life support systems. Subsequently it is determined that she has a 'living will' proscribing aggressive measures should her…
Updated Oct 29, 2026
HealthData.Gov
Background To evaluate changes in H pylori infection prevalence in Greece during a ten-year period, and to examine its antigenic profile. Methods Three groups of patients were studied. Group O-87: Banked serum samples…
Updated Oct 29, 2026
HealthData.Gov
Background In addition to endogenous opioids, a number of peptide sequences, derived from endogenous (hemorphins, alphaS1-casomorphin), and exogenous proteins (casomorphins, exorphins) have been reported, possessing…
Updated Oct 29, 2026
HealthData.Gov
Background A project aimed at studying the frequency of dementia and depression in the catchment area of the Health Centre of Chrissoupolis (HCCh), Northern Greece, was carried out. This paper reports the association…
Updated Oct 29, 2026
HealthData.Gov
Background During cytokinesis, the cell's equator contracts against the cell's global stiffness. Identifying the biochemical basis for these mechanical parameters is essential for understanding how cells divide. To…
Updated Oct 29, 2026
HealthData.Gov
Background In the World Health Report 2000, the World Health Organization made the controversial choice to measure inequality across individuals rather than across groups, the standard in the field. This choice has been…
Updated Oct 29, 2026
HealthData.Gov
Mechanisms whereby T lymphocytes contribute to synovial inflammation in rheumatoid arthritis are poorly understood. Here we review data that indicate an important role for cell contact between synovial T cells, adjacent…
Updated Oct 29, 2026
HealthData.Gov
BALB/c mice immunized with human cartilage proteoglycan (PG) develop arthritis accompanied by the production of autoantibodies to mouse cartilage PG. To determine whether the autoantibody isotype contributes to the…
Updated Oct 29, 2026
HealthData.Gov
Background In order to assess the usefulness of radiolabeled white cell scanning in the diagnosis of intestinal inflammation, subjects were asked to rank several dimensions of preference for white cell scanning in…
Updated Oct 29, 2026
HealthData.Gov
Background The Caenorhabditis elegans gene mec-3 encodes a LIM-homeodomain protein that is a master regulator of touch receptor neuron genes. Two of the touch neurons, the ALM neurons, are generated in the anterior of…
Updated Oct 29, 2026
HealthData.Gov
Background Normal urothelium is characterised by terminally differentiated superficial cells, which express cytokeratin 20 in the cytoplasm. In contrast, cultured human stratified urothelium, which does not undergo…
Updated Oct 29, 2026
HealthData.Gov
Background Insertion Sequence (IS) elements are mobile genetic elements widely distributed among bacteria. Their activities cause mutations, promoting genetic diversity and sometimes adaptation. Previous studies have…
Updated Oct 29, 2026
HealthData.Gov
The detection of endotoxemia may provide a clue to the cause of sepsis or may indicate translocation of endotoxin from the gastrointestinal tract. A reliable endotoxin activity assay (EAA) offers the potential to…
Updated Oct 29, 2026
HealthData.Gov
Background Knowledge of the accuracy of chest radiograph findings in acute lower respiratory infection in children is important when making clinical decisions. Methods I conducted a systematic review of agreement…
Updated Oct 29, 2026
HealthData.Gov
p53 performs a plethora of activities, which are directed towards the maintenance of the genomic integrity and constitute its universal role as a tumor suppressor. 1000 to 10000 latent p53 molecules are permanently…
Updated Oct 29, 2026
HealthData.Gov
Background In spite of very low nutrient concentrations in its vicinity – both column and pore waters-, the Posidonia oceanica of the Revellata Bay displays high biomass and productivity. We measured the nutrient fluxes…
Updated Oct 29, 2026
HealthData.Gov
Background Mefloquine is a clinically important antimalaria drug, which is often not well tolerated. We critically reviewed 516 published case reports of mefloquine adverse effects, to clarify the phenomenology of the…
Updated Oct 29, 2026
HealthData.Gov
Background: Programmed DNA-reorganization and DNA-elimination events take place frequently during cellular differentiation. An extreme form of such processes, involving DNA reorganization, DNA elimination and DNA…
Updated Oct 29, 2026