Na + - and anion-dependent Mg 2+ influx in isolated hepatocytes
Biochimica et Biophysica Acta (BBA) - Biomembranes, ISSN: 0005-2736, Vol: 1149, Issue: 1, Page: 49-54
1993
- 30Citations
- 4Captures
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Metrics Details
- Citations30
- Citation Indexes30
- 30
- CrossRef20
- Captures4
- Readers4
Article Description
Hepatocytes, which were Mg 2+ -depleted during isolation, took up Mg 2+ during reincubation. Mg 2+ uptake was dependent on the concentration of extracellular Mg 2+, Na +, Cl −, bicarbonate and phosphate, Li + and choline + did not substitute for extracellular Na + in Mg 2+ influx. Mg 2+ influx was maximal when all three anion species were present, and did not occur when these anions were replaced by gluconte. Bicarbonate, phosphate and Cl − could substitute for each other. Mg 2+ uptake in hepatocytes was inhibited by p-chloromercuribenzene sulfonate, ouabain, gramicidin D, amiloride and verapamil. The results were explained by the assumption that the net Mg 2+ influx in hepatocytes is operating via electroneutral Na +, Mg 2+ /anion cotransport driven by the Na + gradient. However, electrogenic Mg 2+ uptake gated by extracellular Na + and anions could not be excluded.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/000527369390023S; http://dx.doi.org/10.1016/0005-2736(93)90023-s; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0027269429&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/8391320; http://linkinghub.elsevier.com/retrieve/pii/000527369390023S; http://api.elsevier.com/content/article/PII:000527369390023S?httpAccept=text/xml; http://api.elsevier.com/content/article/PII:000527369390023S?httpAccept=text/plain; https://linkinghub.elsevier.com/retrieve/pii/000527369390023S; http://dx.doi.org/10.1016/0005-2736%2893%2990023-s; https://dx.doi.org/10.1016/0005-2736%2893%2990023-s
Elsevier BV
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