Previous workers have shown that metabolic acidosis increases the apparent space through which administered bicarbonate is distributed. This finding has been ascribed to the accompanying acidemia and to the consequent availability of a large quantity of hydrogen ion that accumulates on nonbicarbonate tissue buffers during the development of acidosis. To test this hypothesis, bicarbonate space w...

occurs intracellularly, extracellularly, and in the cerebrospinal fluid (CSF). Adding sodium bicarbonate to the extracellular fluid causes a decrease in hydrogen ions with subsequent increase in carbon dioxide (CO2) concentration. Since CO2) but not bicarbonate, readily diffuses across cell membranes and into the CSF, this leads to an increase in intracellular and CSF CO2 concentration, with co...

The current study was conducted on the course of Tigris River passing in district Al-Dur / Salah Al-Din Governorate, with three stations distributed along distance area, for period from beginning November 2021 until April 2022. first station ST1 is located near water purification project Al-Bu Ajil area and second station, ST2, at crossing, third last ST3, Al-Dour silo. included measurement som...

Forty-eight water samples (30 groundwater and 18 surface samples) were collected from the study region. Physical chemical examinations performed on to determine values of various variables. Several graphs, sheets, statistical measures, including sodium solubility percentage (SSP), absorption ratio (SAR), Piper’s diagram, used plot concentration principal ions chloride mass balance (CMB). The co...

Twenty-seven patients in cardiopulmonary arrest had simultaneous measurements of arterial and central venous blood gases during cardiopulmonary resuscitation (CPR) with a pneumatic chest comparison and ventilation device. Mean central venous and arterial hydrogen ion concentrations, PCO2 and calculated bicarbonate concentrations were significantly different (P less than 0.01) at all sampling ti...

The bicarbonate ion (HCO3(-)) is involved in two major physiological processes in corals, biomineralization and photosynthesis, yet no molecular data on bicarbonate transporters are available. Here, we characterized plasma membrane-type HCO3(-) transporters in the scleractinian coral Stylophora pistillata. Eight solute carrier (SLC) genes were found in the genome: five homologs of mammalian-typ...

Abstract Rivers are dynamic systems that respond to various physicochemical characteristics. In this review, we focused on the most important parameters influenced zooplankton composition and diversity in rivers, including water temperature, dissolved oxygen, biochemical oxygen demand, hydrogen ion concentration, electrical conductivity, salinity, total solids, suspended turbidity, hardness, ca...

Dong, Hui, Anders Smith, Marjan Hovaida, and Jimmy Y. Chow. Role of Ca -activated K channels in duodenal mucosal ion transport and bicarbonate secretion. Am J Physiol Gastrointest Liver Physiol 291: G1120–G1128, 2006. First published June 8, 2006; doi:10.1152/ajpgi.00566.2005.—Stimulation of muscarinic receptors in the duodenal mucosa raises cytosolic free Ca concentration ([Ca ]cyt), thereby r...