... for eliminating this potentially toxic waste metabolite. Bicarbonate secretion Slc26 Anion exchange Calcium carbonate Ussing chamber DIDS The oxalate anion is a non-functional end-product of metabolism and also part of the diet. When permitted to accumulate, it is potentially damaging, readily...

... of the marine fish intestine. * Author for correspondence ( [email protected] ) 21 10 2009 © 2010. 2010 anion exchange SLC4 water absorption carbonic anhydrase acid–base balance During the last decade, intestinal HCO 3 – secretion via apical Cl – /HCO 3 – exchange...

.... * Author for correspondence ( [email protected] ) 8 9 2009 © 2009. 2009 postprandial anion exchange Cl − /HCO 3 − NBC Na + /HCO 3 − cotransport acid#x02014;base balance regulation alkaline tide Intestinal HCO 3 − secretion has become widely recognized...

... suggest the presence of an anion exchange mechanism exchanging monovalent for polyvalent anions. Polyvalent inorganic anions(SO 4 2– and PO 4 3– ) are known to associate with metals inside vesicles and a detoxification model is presented that suggests how these anions may contribute to concretion...

... are equipped with various pathways to secrete protons, and that the anion exchange activity especially of pseudobranch cells appears to be different from that in gills. * Author for correspondence (e-mail: [email protected] ) 14 6 2002 © The Company of Biologists Limited 2002 2002...

.... Incubation of gas gland cells with 4,4′-diisothiocyanostilbene-2,2′-disulphonic acid(DIDS), an inhibitor of anion exchange, also caused a decrease in pHi, but this decrease was not as pronounced as in the presence of MIA. Furthermore, at low pHi, the effect of DIDS was further reduced, suggesting...

...Frank B. Jensen; Tobias Wang; Jesper Brahm ABSTRACT Unidirectional 36 Cl − efflux via the red blood cell anion exchanger was measured under Cl − self-exchange conditions (i.e. no net flow of anions) in rainbow trout Oncorhynchus mykiss and red-eared freshwater turtle Trachemys scripta to examine...

.... A gradual fall (from 28.1±1.4 to 15.0±1.3 mmol l −1 cells −1 h −1 ) in unidirectional Cl − influx with time was observed within 3 h of cell preincubation in the standard physiological medium. These data provide evidence for the existence for an electroneutral furosemide-sensitive anion-exchange pathway...

... at a given carbon dioxide tension. In lampreys, the bicarbonate permeability of the erythrocyte membrane is low. As a consequence, extracellular acid loads cannot be buffered by haemoglobin. In contrast, teleost erythrocytes possess a functional anion exchange, allowing extracellular proton loads...

... − /Cl − exchange for CO 2 excretion. 30 05 1995 © The Company of Biologists Limited 1995 Cl − transport chloride shift anion exchange band 3 red blood cells haemoglobin interspecific differences Two processes increase the CO2-carrying capacity of blood by driving...

...Peter C. Maloney; Run-Tao Yan; Keietsu Abe ABSTRACT Studies of two different bacterial anion exchange proteins (antiporters) led us to conclude that both reductionist and integrative approaches contribute to progress in understanding membrane biology. We have used a reductionist perspective...

... preloaded with acetate or bicarbonate was enhanced compared to [ 3 H]acetate uptake into vesicles preloaded with gluconate. A series of transstimulation and cis-inhibition studies involving both organic and inorganic anions indicated the presence of a highly specific anion-exchange carrier which readily...