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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-2-14
pubmed:abstractText
Accelerated fibrinogen disappearance in diabetic patients is reversible with normalization of blood glucose. To define the time course of this reversal, we measured 125I-fibrinogen disappearance in 19 diabetic patients experiencing acute changes in blood glucose, as monitored and controlled by a microprocessor-controlled closed loop insulin infusion system (artificial beta cell). The data were corrected for blood volume dilutional changes and fit to a model describing two sequential exponential functions and a single exponential function. The sequential model provided the best fit for all but one patient. This indicates that there were two distinct rates of fibrinogen disappearance and suggests that the time course of reversal of accelerated fibrinogen disappearance in diabetic patients is very rapid, if not immediate. Rapid fibrinogen turnover during hyperglycemia was temporally associated with vascular volume changes, reflected as dilutional changes of 51Cr-RBC concentrations. These findings were also associated with an increase in pulse pressure during hyperglycemia, suggesting blood volume expansion due to an osmotic mechanism. The results of this study suggest a picture of vascular volume expansion and contraction, perhaps secondary to the osmotic effects of hyperglycemia. Accelerated fibrinogen turnover associated with these events may be related to increased vascular permeability and/or increased fibrin formation. These events, in concert, may contribute to the initiation and/or propagation of diabetic vascular sequelae.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
22-30
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Time course of reversibility of accelerated fibrinogen disappearance in diabetes mellitus: association with intravascular volume shifts.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't