Genetic Factors and Interrelationships for Sexual Orientation, Susceptibility to HIV and Kaposi's Sarcoma, Alcoholism and Psychological Traits, and Histocompatibility Antigens

NCT00001294 | Completed

• 2 other identifiers: 92007892-C-0078
• Study Type: observational
• Target: 2,000
• Locations: 1 country
• Sites: 1

Brief Summary

We propose to test, by DNA linkage analysis of family pedigree members, the following interrelated hypotheses: 1) that sexual orientation is genetically influenced; 2) that the development of Kaposi's sarcoma and other outcomes of HIV infection in male homosexuals is affected by host susceptibility genes, circulating sex hormone levels, or HLA haplotype; and 3) that alcoholism and other psychobehavioral conditions are associated with homosexuality on a genetic basis and/or influenced by candidate behavioral loci. The subjects for these studies will be self-identified male and female homosexual probands and their relatives from families in which there are at least two individuals with homosexual orientation. All subjects will be adults, and will be referred through NIH physicians, private practitioners, and gay and lesbian organizations. Subjects will undergo a sexual orientation and behaviors interview, a psychiatric interview, and phlebotomy for HIV testing, HLA determination, endocrine measurements, and preparation of DNA from cultured lymphocytes. The DNA samples will be analyzed for a series of genetic markers that span the human genome and for candidate loci chosen for function.

Conditions

Alcoholism; HIV Infection; Homosexuality; Kaposi's Sarcoma

Keywords

Genetic Linkage; Sex Behavior; AIDS; Alcohol Dependence; HLA System; Cancer

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• The basic criterion for entering families into the DNA linkage study is the presence of two or more homosexual siblings of the same sex. Additional criteria will be imposed depending on the aims of the particular project.

Sponsors & Collaborators

• National Cancer Institute (NCI): lead

Study Sites (1)

National Cancer Institute (NCI)

Bethesda, Maryland, 20892, United States

Location

Related Publications (3)

• Pillard RC, Weinrich JD. Evidence of familial nature of male homosexuality. Arch Gen Psychiatry. 1986 Aug;43(8):808-12. doi: 10.1001/archpsyc.1986.01800080094012.

  PMID: 3729676 BACKGROUND

• Bailey JM, Pillard RC. A genetic study of male sexual orientation. Arch Gen Psychiatry. 1991 Dec;48(12):1089-96. doi: 10.1001/archpsyc.1991.01810360053008.

  PMID: 1845227 BACKGROUND

• Whitam FL, Diamond M, Martin J. Homosexual orientation in twins: a report on 61 pairs and three triplet sets. Arch Sex Behav. 1993 Jun;22(3):187-206. doi: 10.1007/BF01541765.

  PMID: 8494487 BACKGROUND

MeSH Terms

Conditions

Alcoholism; HIV Infections; Homosexuality; Sarcoma, Kaposi; Sexual Behavior; Acquired Immunodeficiency Syndrome; Neoplasms

Condition Hierarchy (Ancestors)

Alcohol-Related Disorders; Substance-Related Disorders; Chemically-Induced Disorders; Mental Disorders; Blood-Borne Infections; Communicable Diseases; Infections; Sexually Transmitted Diseases, Viral; Sexually Transmitted Diseases; Lentivirus Infections; Retroviridae Infections; RNA Virus Infections; Virus Diseases; Genital Diseases; Urogenital Diseases; Immunologic Deficiency Syndromes; Immune System Diseases; Sexuality; Behavior; Herpesviridae Infections; DNA Virus Infections; Sarcoma; Neoplasms, Connective and Soft Tissue; Neoplasms by Histologic Type; Neoplasms, Vascular Tissue; Slow Virus Diseases

Study Design

• Study Type: observational
• Sponsor Type: NIH

Study Record Dates

• First Submitted: November 3, 1999
• First Posted: November 4, 1999
• Study Start: January 1, 1992
• Study Completion: April 1, 2005
• Last Updated: March 4, 2008

Record last verified: 2005-04

Locations

US (1)