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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1986-11-17
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pubmed:abstractText |
In order to assess whether the metabolic clearance of insulin changes overnight, 11 patients with Type 1 (insulin-dependent) diabetes and low insulin antibody titre, and 6 nondiabetic subjects were studied. In these studies insulin was always infused by a Harvard pump. Initially, the nocturnal insulin requirements were assessed in the diabetic patients by an overnight feedback insulin infusion to maintain euglycaemia. The insulin requirements decreased continuously after midnight to a nadir of 0.115 +/- 0.014 mU X kg-1 X min-1 at 04.30 hours, but after 05.00 hours the insulin requirements increased nearly 40 percent to a maximum of 0.16 +/- 0.012 mU X kg-1 X min-1 at 07.00 hours. To assess whether plasma insulin clearance changes overnight, the diabetic patients were studied on two different occasions, from 22.00-02.30 hours and from 04.00-08.30 hours. During each of these two studies insulin was infused in sequential steps of 90 min each at the rate of 0.13, 0.40 and 0.20 mU X kg-1 X min-1. Despite changes in plasma free insulin concentration, the metabolic clearance of insulin in the interval 22.00-02.30 hours (12.6 +/- 0.17 ml X kg-1 X min-1) was no different from that of the interval 04.00-08.30 hours (12.5 +/- 0.19 ml X kg-1 X min-1). The nondiabetic subjects were studied on two different occasions to assess whether the metabolic clearance of insulin changes overnight. Somatostatin (0.25 mg/h) and insulin (0.3 mU X kg-1 X min-1) were infused from 22.00-02.30 hours on one occasion, and from 04.00-08.30 hours on the other.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0012-186X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
29
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
475-80
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:3530862-Adult,
pubmed-meshheading:3530862-Circadian Rhythm,
pubmed-meshheading:3530862-Diabetes Mellitus, Type 1,
pubmed-meshheading:3530862-Female,
pubmed-meshheading:3530862-Humans,
pubmed-meshheading:3530862-Insulin,
pubmed-meshheading:3530862-Insulin Antibodies,
pubmed-meshheading:3530862-Insulin Resistance,
pubmed-meshheading:3530862-Male,
pubmed-meshheading:3530862-Metabolic Clearance Rate
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pubmed:year |
1986
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pubmed:articleTitle |
Studies on overnight insulin requirements and metabolic clearance rate of insulin in normal and diabetic man: relevance to the pathogenesis of the dawn phenomenon.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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