| Plasminogen activator inhibitor-1 and tissue-plasminogen activator in minority adolescents with type 2 diabetes and obesity. | |
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MedLine Citation:
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PMID: 15901895 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Increased plasminogen activator inhibitor-1 (PAI-1) and decreased tissue-plasminogen activator (t-PA) activities lead to impaired fibrinolysis, which is critical for cardiovascular disease. We studied these hemostatic factors at fasting state and after an oral fat load in 12 type 2 diabetic and 17 nondiabetic obese adolescents, matched for age, sex, body mass index, and sexual maturation. Plasma PAI-1, t-PA, and glucose as well as serum C-peptide, insulin, total cholesterol, triglyceride, and HDL and LDL cholesterol levels were measured at 0, 2, 4, and 6 h after the fat load. Metabolic responses were expressed as the area under the curve (AUC). PAI-1 activities were significantly greater in patients than in control subjects [fasting, 23.4 +/- 2.6 versus 12.9 +/- 2.0 U/mL (p < 0.004); AUC, 101.7 +/- 12.1 versus 57.6 +/- 6.5 U . h [corrected] . mL(-1) (p < 0.003)]. Fasting t-PA activities were significantly lower in the patients than in the control subjects (0.8 +/- 0.3 versus 6.5 +/- 2.7 U/mL; p < 0.001). Triglyceride was the only lipid parameter that was significantly different in the patients than in the control subjects [fasting, 1.5 +/- 0.2 versus 0.9 +/- 0.1 mM (p < 0.05); AUC, 15.7 +/- 2.9 versus 7.9 +/- 0.6 mmol . h(-1) . L(-1) (p < 0.02)]. The PAI-1 activities decreased significantly during the loading tests (p < 0.0001), whereas the t-PA activities did not change. Insulin resistance estimated by the homeostasis model assessment was greater in the patients than in the control subjects (14.4 +/- 2.8 versus 4.6 +/- 0.7; p < 0.0001). We conclude that elevated PAI-1 and diminished t-PA activities, suggestive of suppressed fibrinolysis, are present in our adolescents with type 2 diabetes; adding another risk factor for cardiovascular disease and acute high fat load does not further negatively affect this suppressed fibrinolysis. |
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Authors:
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Vatcharapan Umpaichitra; M Mahmood Hussain; Salvador Castells |
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Publication Detail:
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Type: Journal Article Date: 2005-05-18 |
Journal Detail:
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Title: Pediatric research Volume: 58 ISSN: 0031-3998 ISO Abbreviation: Pediatr. Res. Publication Date: 2005 Sep |
Date Detail:
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Created Date: 2005-09-08 Completed Date: 2006-01-19 Revised Date: 2006-05-03 |
Medline Journal Info:
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Nlm Unique ID: 0100714 Medline TA: Pediatr Res Country: United States |
Other Details:
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Languages: eng Pagination: 483-7 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Brookdale University Hospital and Medical Center [corrected] Brooklyn, NY 11212, USA. vumpaich@brookdale.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Area Under Curve Body Mass Index Case-Control Studies Diabetes Mellitus, Type 2 / blood* Fasting Humans Minority Groups* Obesity / blood* Plasminogen Activator Inhibitor 1 / blood* Postprandial Period Tissue Plasminogen Activator / blood* |
| Chemical | |
Reg. No./Substance:
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0/Plasminogen Activator Inhibitor 1; EC 3.4.21.68/Tissue Plasminogen Activator |
| Comments/Corrections | |
Erratum In:
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Pediatr Res. 2006 May;59(5):746 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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