With the implementation of policy ecological protection and high-quality development Yellow River Basin, Guohe which is close to middle reaches also an important part future development. Mathematical statistics, Piper diagram, ion proportion coefficient method, Gibbs diagram reverse hydrogeochemical simulation are used analyze chemical characteristics evolution groundwater in Basin (Henan Secti...

background: methanol poisoning is one of the most important poisoning due to drinking of illegal and non-standard alcoholic beverage in some countries. relatively limited studies have been carried out to identify the prognostic factors in methanol poisoning. materials and methods: we performed a retrospective study on acute methanol-intoxicated patients, which were admitted on the loghman hakim...

To achieve selective inhibition of cytosolic and membrane-bound carbonic anhydrase (CA II and CA IV, respectively), we synthesized a polymer of molecular weight 3500 from polyoxyethylene bis acetic acid and aminobenzolamide. The new compound, designated F (for Florida) 3500, is stable, water soluble and nontoxic. It is excreted largely unchanged by glomerular filtration. The Ki at 37 degrees C ...

1. The effect of parathyroid hormone on gastric bicarbonate secretion was determined in the anaesthetized guinea pig. Subcutaneous injections of bovine parathyroid hormone (75 U.S.P units day-1 kg-1) for 7 days caused a significant increase in HCO3- output. There was also a rise in K+ output and a slight elevation of H+ secretion. A similar increase in HCO3- output occurred after acute intraven...

HCO3- -rich fluid in the pancreatic juice (2-3 L/day) is secreted by epithelial cells lining the pancreatic duct tree, while digestive enzymes are secreted by acinar cells with a small amount of Cl- -rich fluid. Ductal HCO3- secretion is not only regulated by gastrointestinal hormones and cholinergic nerves but is also influenced by luminal factors: intraductal pressure, Ca2+ concentration, pat...

We investigated the mechanism underlying stimulation of HCO3- secretion by the nitric oxide (NO) synthase inhibitor NG-nitro-L-arginine methyl ester (L-NAME) in the gastroduodenal mucosa of anesthetized rats. A chambered stomach (in the presence of omeprazole) or a duodenal loop was perfused with saline, and HCO3- secretion was measured at pH 7.0 by a pH-stat method. Intravenous administration ...