A multifactorial model for the development of AIDS in homosexual men.

Abstract:

:The authors present a multifactorial model for the development of acquired immunodeficiency syndrome (AIDS) in homosexual men. It is posited that there is no specific AIDS agent; rather, AIDS is conceptualized as the result of an interaction of the known or likely effects of repeated exposures to specific environmental factors. It is suggested that different pathways may lead to similar disorders of immune regulation in other groups affected by AIDS. The salient environmental factors include: repeated exposures to multiple allogenic semen, repeated infection with cytomegalovirus, and infection with other sexually transmitted pathogens. It is proposed that AIDS develops in 2 stages: a reversible stage of disease acquisition followed by a self-sustaining stage of disease progression. Promiscuity is critical to the 1st stage, since it is associated with an accumulation of effects that eventually lead to the 2nd stage. The frequency with which an individual is reexposed to cytomegalovirus is a function of the number of different sexual partners, the prevalence of cytomegalovirus carriage in the population with whose members the person interacts, and the specific nature of sexual practice (e.g., passive anal intercourse). Epstein-Barr virus plays an important role in contributing to disordered immune regulation. The central defect in the self-sustaining stage of AIDS development is an inability of cytotoxic lymphocytes to clear cells infected by cytomegalovirus as a result of both humoral factors and cellular factors. If cytotoxic function becomes further inhibited, expansion of the total cytomegalovirus antigenic load will result in further immunosuppression. Such a multifactorial model is believed to facilitate epidemiologic analysis.

journal_name

Ann N Y Acad Sci

authors

Sonnabend JA,Witkin SS,Purtilo DT

doi

10.1111/j.1749-6632.1984.tb37134.x

subject

Has Abstract

pub_date

1984-01-01 00:00:00

pages

177-83

eissn

0077-8923

issn

1749-6632

journal_volume

437

pub_type

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