Cholera toxin and Escherichia coli heat labile toxin (LT) induced intestinal secretion has in the past been attributed exclusively to an increase in intracellular cAMP whereas E coli heat stable toxin (ST) induced secretion is mediated through cGMP. Evidence is accumulating on the importance of 5-hydroxytryptamine (5-HT) in cholera toxin induced secretion, but its role in LT and ST is not well ...

BACKGROUND Liver transplantation (LT) offers the most effective treatment for hepatocellular carcinoma patients. Various preoperative variables are correlated with survival after LT, but the prognostic role of aging on LT remains controversial. METHODS Between January 2001 and December 2011, 290 consecutive transplants for patients with hepatocellular carcinoma performed in Shanghai First Peo...

background: related multidrug resistance (mdr) to efflux pumps is a significant problem in treating infections caused by pseudomonas aeruginosa (p. aeruginosa). plant compounds have been identified as pump inhibitors (epis). in the current study, the potential effect of berberine and palmatine as epis were investigated on efflux pump inhibition through focusing on different gene patterns in p. ae...

background: the pathogenesis of nontypeable haemophilus influenzae (nthi) begins with adhesion to the rhinopharyngeal mucosa. almost 38-80% of nthi clinical isolates produce proteins that belong to the high molecular weight (hmw) family of adhesins, which are believed to facilitate colonization. methods: in the present study, the prevalence of hmwa, which encodes the hmw adhesin, was determined...

Lymphocyte transformation (LT) responses to Chlamydia trachomatis, to four other microbial antigens, and to phytohemagglutinin (PHA) were studied in 201 women during pregnancy and/or 3-18 wk postpartum. The LT responses to all stimulants tested were significantly depressed during pregnancy when compared with postpartum LT responses. This difference occurred whether LT assays were performed in a...

Se han estudiado los contenidos en aceite, proteína, hidrato de carbono y ceniza, índice de yodo y composición en ácidos grasos y esteróles en semillas de 9 cultivares aborígenes Arachis hypogaea subsp. fastigiata var. vulgaris originarios de Uruguay. Estos mostraron un nivel alto en proteína como las otras variedades de la subespecie fastigiata (estos porcentajes en proteína son mayores que en...

OBJECTIVE/METHODS In order to investigate whether selective hypertriglyceridemia impairs endothelium-dependent vasodilatation in the rat hindlimb, rats were selectively bred to establish two strains, one with a pronounced hypertriglyceridemia (HT) and the other with normal plasma levels of triglycerides (LT). RESULTS Carotid arteries and aortae removed from 3, 6, 9 and 12 month old LT- and HT...

PURPOSE To determine the distribution of ocular biometric components and their correlation with age and sex during the ages of ocular development in a 6- to 18-year-old population in Iran. METHOD In this cross-sectional study, which was performed in October 2012, multi-stage stratified cluster sampling was used to sample the study population from Dezful schools, a city in the southwest of Ira...

Five new abietanes, three of them isolated as the corresponding acetate derivatives, i.e., 9alpha,13alpha-epidioxiabiet-8(14)-en-18-ol, 7alpha,18-diacetoxy, 9beta,13beta-epidioxiabiet-8(14)-ene, 7alpha,18-diacetoxyabiet-8(14)-en-13beta-ol, 7alpha,18-diacetoxy-13beta-methoxyabiet-8(14)-ene, and 13beta-hydroxyabiet-8(14)-en-7-one, were isolated from the neutral part of the hexane extract of the c...

background: the presence of rennin-angiotensin components in mammalian ovaries and their involvement in ovarian physiology have been established. in the present study, effects of angiotensin ii (ang ii) on sodium-potassium adenosine triphosphatase (na+/k+/atpase) expression and development of sheep embryos was evaluated. methods: the abattoir-derived cumulus oocyte complexes (coc) were randomly...