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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1992-10-28
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pubmed:abstractText |
To determine whether the degree of previous glycaemic control may modify cognitive responses to hypoglycaemia, the glycaemic thresholds for, and magnitude of cognitive dysfunction as assessed by P300 event-related potentials as well as subjective and hormonal responses during hypoglycaemia were evaluated. Hypoglycaemia was induced by intravenous insulin infusion in 18 Type 1 (insulin-dependent) diabetic patients, 7 of whom were strictly controlled (HbA1c: 6.3 +/- 0.3%; mean +/- SEM; Group 1) and 11 of whom were poorly controlled (HbA1c: 9.1 +/- 0.4%; Group 2). Within 60 min, mean blood glucose declined from 5.6 and 5.7 mmol/l (baseline) to a nadir of 1.6 and 1.8 mmol/l followed by an increase to 5.6 and 4.3 mmol/l after 120 min in Group 1 and 2, respectively. There was no significant difference between the groups in regard to P300 latency at baseline, but between 50 and 70 min a significant prolongation of this component was noted in Group 2 as compared with Group 1 at blood glucose levels between 1.6 and 2.3 mmol/l (p less than 0.05). The glycaemic thresholds at which a significant increase of P300 latency over baseline was first noted were 1.6 +/- 0.2 mmol/l in Group 1 and 3.5 +/- 0.2 mmol/l in Group 2 (p less than 0.05). The glucose thresholds at which this prolongation was no longer demonstrable were 1.9 +/- 0.1 mmol/l in Group 1 and 3.8 +/- 1.4 mmol/l in Group 2, respectively (p less than 0.05). The glycaemic threshold at which the P300 amplitude was first significantly reduced was 2.2 mmol/l in Group 2, whereas no such reduction was observed in Group 1.(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 |
Sep
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pubmed:issn |
0012-186X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
828-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1397777-Adolescent,
pubmed-meshheading:1397777-Adult,
pubmed-meshheading:1397777-Blood Glucose,
pubmed-meshheading:1397777-Cognition,
pubmed-meshheading:1397777-Cognition Disorders,
pubmed-meshheading:1397777-Diabetes Mellitus, Type 1,
pubmed-meshheading:1397777-Female,
pubmed-meshheading:1397777-Humans,
pubmed-meshheading:1397777-Hypoglycemia,
pubmed-meshheading:1397777-Male,
pubmed-meshheading:1397777-Middle Aged,
pubmed-meshheading:1397777-Time Factors
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pubmed:year |
1992
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pubmed:articleTitle |
Effects of previous glycaemic control on the onset and magnitude of cognitive dysfunction during hypoglycaemia in type 1 (insulin-dependent) diabetic patients.
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pubmed:affiliation |
Diabetes Research Institute, Heinrich-Heine-University, Düsseldorf, FRG.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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