Source:http://linkedlifedata.com/resource/pubmed/id/13654752
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
|
| pubmed:dateCreated |
1959-12-1
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| pubmed:abstractText |
The distribution of Ca(45) in frog (Rana pipiens) sartorius muscle, after 4 hours' exposure to Ringer's solution containing radiocalcium, has been analyzed by observing the kinetics of escape of the radioisotope into a non-radioactive Ringer's solution with calcium present or absent and by assuming that the tendon of Achilles is a satisfactory model of the extent of the uptake and release of Ca(45) by the interstitial connective tissue (c.t.). In a Ringer's solution containing 1 mM/liter calcium, the exchangeable calcium distribution in micromoles per gram wet weight is as follows: (a) Aqueous phase of c.t. space: 0.16; (b) bound to c.t.: 0.16; (c) bound to surface of fibers: 0.13, of which 0.03 is displaced only by self-exchange, whereas the rest, as in c.t., can be displaced by other ions; and (d) in myoplasm: 0.33. The kinetics of Ca(45) exit suggests that in infinite time of exposure to Ca(45) the myoplasmic component would rise to 0.85. In the muscles, the half-time of the quickly emerging Ca(45) averages about 3 minutes, whereas the time constant of the slowly released component is about 500 minutes. In the tendons the percentage rate of escape falls exponentially, the half-time of emergence being about 10 minutes.
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| pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13085309,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13117939,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13155190,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13192815,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13398571,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13430788,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13481890,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13526124,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13542169,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-13631205,
http://linkedlifedata.com/resource/pubmed/commentcorrection/13654752-14381478
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| pubmed:keyword | |
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
OM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
May
|
| pubmed:issn |
0022-1295
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
20
|
| pubmed:volume |
42
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1123-37
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| pubmed:dateRevised |
2010-6-22
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| pubmed:meshHeading | |
| pubmed:year |
1959
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| pubmed:articleTitle |
The distribution and kinetics of release of radiocalcium in tendon and skeletal muscle.
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| pubmed:publicationType |
Journal Article
|