Gene Mapping for Quantitative Traits

To conduct gene mapping studies for quantitative traits.

Study Overview

• Status: Completed
• Conditions: Heart Diseases; Cardiovascular Diseases

Detailed Description

DESIGN NARRATIVE:

The study built upon existing sib-pair methods for multipoint mapping of Quantitative Trait Loci (QTL)s. It greatly expanded upon the statistical methodology to identify and localize QTLs for complex traits by merging sib-pair methods with a powerful twin design which used phenotypic data on monozygotic (identical) and dizygotic (fraternal) twins to resolve phenotypic variability into genetic and non-genetic components, and partition human quantitative genetic variation into effects due to loci on specific chromosomal regions. This quantitative methodology was applied to risk factors for cardiovascular disease -- one of the most pressing health problems in Western society. Population-based samples of Dutch, Swedish, and Australian twins had been identified in previous studies, phenotypic measures on lipids, lipoproteins, and other important cardiovascular risk factors had been obtained, and blood had been banked in a valuable resource which was available for use in this study. In 500 DZ twin pairs, a series of 175 highly polymorphic microsatellite markers were detected using an automated process for detecting fluorescent signals. These data were analyzed using the new statistical methods both to confirm the effects of a series of candidate loci and to test for the effects of previously unknown QTLs.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

• Study Type: Observational

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: No older than 100 years (ADULT, OLDER_ADULT, CHILD)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

No eligibility criteria

Study Plan

How is the study designed?

Collaborators and Investigators

• Sponsor: National Heart, Lung, and Blood Institute (NHLBI)
• Investigators: George Vogler, Penn State University

Publications and helpful links

General Publications

• Nelson TL, Vogler GP, Pedersen NL, Miles TP. Genetic and environmental influences on waist-to-hip ratio and waist circumference in an older Swedish twin population. Int J Obes Relat Metab Disord. 1999 May;23(5):449-55. doi: 10.1038/sj.ijo.0800840.
• Vogler GP, Tang W, Nelson TL, Hofer SM, Grant JD, Tarantino LM, Fernandez JR. A multivariate model for the analysis of sibship covariance structure using marker information and multiple quantitative traits. Genet Epidemiol. 1997;14(6):921-6. doi: 10.1002/(SICI)1098-2272(1997)14:63.0.CO;2-N.
• McClearn GE, Vogler GP. Genetics and behavioral medicine: the error of the error term. Behav Med. 1997 Winter;22(4):150-1. doi: 10.1080/08964289.1997.10543547. No abstract available.
• Vogler GP, McClearn GE, Snieder H, Boomsma DI, Palmer R, de Knijff P, Slagboom PE. Genetics and behavioral medicine: risk factors for cardiovascular disease. Behav Med. 1997 Winter;22(4):141-9. doi: 10.1080/08964289.1997.10543546.
• Beekman M, Lakenberg N, Cherny SS, de Knijff P, Kluft CC, van Ommen GJ, Vogler GP, Frants RR, Boomsma DI, Slagboom PE. A powerful and rapid approach to human genome scanning using small quantities of genomic DNA. Genet Res. 2001 Apr;77(2):129-34. doi: 10.1017/s001667230100492x.
• Beekman M, Heijmans BT, Martin NG, Pedersen NL, Whitfield JB, DeFaire U, van Baal GC, Snieder H, Vogler GP, Slagboom PE, Boomsma DI. Heritabilities of apolipoprotein and lipid levels in three countries. Twin Res. 2002 Apr;5(2):87-97. doi: 10.1375/1369052022956.

Study record dates

Study Major Dates

• Study Start: September 1, 1995
• Study Completion (ACTUAL): August 1, 2000

Study Registration Dates

• First Submitted: May 25, 2000
• First Submitted That Met QC Criteria: May 25, 2000
• First Posted (ESTIMATE): May 26, 2000

Study Record Updates

• Last Update Posted (ESTIMATE): February 18, 2016
• Last Update Submitted That Met QC Criteria: February 17, 2016
• Last Verified: October 1, 2002

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Heart Diseases; Cardiovascular Diseases
• Other Study ID Numbers: 5068; R01HL055976 (NIH)