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Serum leptin level and polymorphism of leptin receptor gene in patients with stroke

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF NEUROMEDICINE
Issue:
8
DOI:
10.3760/cma.j.issn.1671-8925.2010.08.004
Key Word:
卒中;瘦素;瘦素受体;基因多态性;Stroke;Leptin;Leptin receptor;Gene polymorphism

Abstract: Objective To study the relation between stroke and both plasma leptin level and polymorphism of leptin receptor gene. Methods Ninty-nine patients with stroke and 97 patients with other diseases (controls), admitted to our hospital from January 2007 to December 2008, were chosen in the experiment. Polymerase chain reaction-restriction fragment length polymorphism (LEPR) examination was performed to detect the leptin receptor gene (Gln223A rg gene) polymorphism in these patients. The level of serum leptin was analyzed by enzyme linked immunosorbent assay. Results The genotype frequencies of GG, GA and AA in Gln223Arg gene in patients with stroke were 66.67%, 20.20% and 13.13%, respectively, while those in controls were 78.35%, 15.46% and 6.19%, respectively; those in these 2 groups were not significantly different (P>0.05). The allele frequencies of A and G in patients with stroke were 76.77% and 25.23%, while those in controls were 86.08% and 13.92%; those in the 2 groups were significantly different (P<0.05). The level ofleptin in patients with stroke was markedly higher that that in controls (P<0.05). Binary regression analyses showed that history of hypertension, elevated fasting blood glucose and cholesterol, increased plasma leptin level were associated with stroke. Conclusion The allele frequencies of A in Gln223A rg gene, hypertension, elevated fasting blood glucose and cholesterol and increased plasma leptin level might be correlated with the increased risk of stroke.

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