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Segregation analysis of diastolic blood pressure in a large pedigree

✍ Scribed by Dr. Karen A. Weissbecker

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 331 KB
Volume: 10
Category: Article
ISSN: 0741-0395
DOI: 10.1002/gepi.1370100655

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✦ Synopsis

Abstract

Hypertension, a major risk factor for cardiovascular diseases, is thought to be inherited to some extent. However, the nature of its genetic component remains unresolved. In the present study, data from a single large kindred (the HGAR1 pedigree) were used to search for evidence of single gene and multifactorial effects on diastolic blood pressure. Commingling analyses found that a mixture of three distributions fit the data significantly better than a single normal distribution, suggesting a major effect influencing diastolic blood pressure levels. However, segregation analysis, using regressive models, indicated that the transmission probabilities were not consistent with Mendelian expectations. There was no evidence of either major gene or polygenic effects on diastolic blood pressure levels in this family. © 1993 Wiley‐Liss, Inc.

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