نتایج جستجو برای: 172
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BACKGROUND Airway mucociliary clearance (MCC) is an important defense mechanism against pulmonary infections and is compromised in cystic fibrosis (CF). Cl- and HCO3- epithelial transport are integral to MCC. During pulmonary infections prostaglandin E2 (PGE2) production is abundant. AIM To determine the effect of PGE2 on airway Cl- and HCO3- secretion and MCC in normal and CF airways. METH...
Secretory diarrhea is the leading cause of infant death in developing countries and a major cause of morbidity in adults. The cystic fibrosis transmembrane conductance regulator (CFTR) protein is required for fluid secretion in the intestine and airways and, when defective, causes the lethal genetic disease cystic fibrosis. We screened 50,000 chemically diverse compounds for inhibition of cAMP/...
The extremely high energy demand elicited by sprint exercise is satisfied by an increase in O2 consumption combined with a high glycolytic rate, leading to a marked lactate accumulation, increased AMP-to-ATP ratio, and reduced NAD(+)/NADH.H(+) and muscle pH, which are accompanied by marked Thr(172) AMP-activated protein kinase (AMPK)-α phosphorylation during the recovery period by a mechanism n...
Homologous recombination (HR) is one of the main pathways for the repair of DNA double strand breaks (DSBs). To investigate whether inherited variants in genes encoding proteins that repair DSBs by HR modulate acute myeloid leukaemia (AML) risk, we have examined the frequency of two variants in the 5' untranslated region (UTR) of RAD51 (RAD51 135 G>C and the RAD51 172 G>T) in a large case-contr...
Sindbis virus (SV) is an alphavirus that causes encephalitis in mice and results in age-dependent mortality. The outcome is dependent on the virus strain. Residues at 55 and 172 in the E2 glycoprotein determine the neurovirulence for mice of different ages and the efficiency of replication in the nervous system and neuronal cells. To determine the effects of these two residues on the initial st...
Infections with hepatitis B and C viruses (HBV and HCV) are a Introduction major global health problem. Patients with chronic renal failure (CRF) on hemodialysis constitute a population at risk of HBV and HCV infections. : Determining prevalence of the surface antigen of hepatitis B virus Objective (HBsAg) and antibodies to hepatitis C virus (anti-HCV) in patients who attended dialysis units in...
Nitric oxide synthase (NOS) activity was induced in the cytosol of A-172 cells by treatment with lipopolysaccharide, tumor necrosis factor-alpha, and interferon-gamma. A 130-kDa human inducible NOS (iNOS) protein was detected with anti-rat iNOS antibody by western blot analysis. Northern blot analysis showed that the iNOS mRNA was approximately 4.5 kb, using a cDNA fragment for human iNOS, isol...
Abstract Cryopreservation and more specifically oocyte vitrification has become a before after in the field of Assisted Reproduction Techniques. Despite great efforts to improve slow freezing protocols, levels reproducibility, survival rates clinical outcomes achieved by have never been reached any these old approaches. However, once this barrier was overcome, new challenges emerged. We must re...
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