| Potassium efflux from frog oocytes: effects of temperature, preincubation and injection of a gelatin bead. | |
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MedLine Citation:
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PMID: 6334859 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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42K efflux was studied in frog oocytes. 17 of 43 cells had only a single slow exponential exchange of 42K, while the remainder had a curvature of 42K exchange with one or more fast fractions preceding the slow exponential one. This variability in the characteristic of 42K efflux is not associated with evident damage, occurs at both 5 degrees and 25 degrees C., is independent of the method of preincubation, and occurs whether or not the cells are injected with a gelatin bead. Most of the fast-exchange fraction of K is not caused by follicle cells or other extraoocytic sources. These results may help explain some of the apparently conflicting results reported in studies of K exchange in amphibian oocytes. |
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Authors:
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L Edelmann; M M Ochsenfeld; W Negendank |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Physiological chemistry and physics and medical NMR Volume: 16 ISSN: 0748-6642 ISO Abbreviation: Physiol Chem Phys Med NMR Publication Date: 1984 |
Date Detail:
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Created Date: 1985-02-06 Completed Date: 1985-02-06 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8502230 Medline TA: Physiol Chem Phys Med NMR Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 197-207 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biological Transport Female Gelatin / pharmacology Oocytes / metabolism* Potassium / metabolism* Rana pipiens Temperature Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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2-R01-CA16301-03/CA/NCI NIH HHS; 2-R01-GM11422-13/GM/NIGMS NIH HHS |
| Chemical | |
Reg. No./Substance:
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7440-09-7/Potassium; 9000-70-8/Gelatin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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