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Query: UMLS:C0021051 (immunodeficiency)
 71,517 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We examined the associations between seropositivity for hepatitis B virus (HBV) with the presence or development of antibodies to human immunodeficiency virus (HIV-1) and with HIV-1 induced T-helper lymphocyte deficiency or acquired immunodeficiency syndrome (AIDS). Serologic data on HBV and HIV-1, cytometric enumeration of CD4+ lymphocytes, clinical events (AIDS by Centers for Disease Control criteria) and hepatitis B vaccination histories were available on 4,498 homosexual participants in the Multicenter AIDS Cohort Study, Men were classified as to previous infection with HBV and prevalent or incident infection with HIV-1. Although there was an association between seropositivity for HBV infection and HIV-1 infection at enrollment (odds ratios anti-HBc 2.6; HBsAg 4.2), the relation between HBV seropositivity and subsequent seroconversion to HIV-1 was weaker (odds ratios 1.3 and 1.6). HIV-1 seroconversion was also associated with a history of certain other sexually transmitted diseases, but predisposing sexual practices did not account for the association between HBV and HIV-1 infection. Seropositivity for HBV infection at entry was not related to initially low or more rapid subsequent decline in T-helper lymphocyte counts and was not associated with an increased incidence of AIDS during 2.5 years of follow-up. History of vaccination against HBV did not appear to decrease susceptibility to HIV-1 infection or to subsequent progression of immunodeficiency. We conclude that prior HBV infection is unlikely to be specifically associated with acquisition of HIV-1 infection and is unrelated to more rapid progression of HIV-1-induced immunodeficiency.
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PMID:Association of hepatitis B surface antigen and core antibody with acquisition and manifestations of human immunodeficiency virus type 1 (HIV-1) infection. 224 Mar 33

Acquired immunodeficiency syndrome (AIDS) surveillance data for both the United States and San Francisco indicate that Kaposi's sarcoma is more common in homosexual and bisexual men with AIDS than in other adults with AIDS, and that the proportion of newly diagnosed AIDS cases presenting with Kaposi's sarcoma has been significantly declining over time. The changing epidemiology of Kaposi's sarcoma was analyzed in a well-characterized cohort of homosexual and bisexual men; laboratory and interview data from a sample of these men were evaluated for determinants of and cofactors associated with Kaposi's sarcoma. Among 1,341 men with AIDS, the proportion presenting with Kaposi's sarcoma declined from 79% in 1981 to 25% in 1989. Compared with other men with AIDS, men with Kaposi's sarcoma had a shorter interval from human immunodeficiency virus (HIV) seroconversion to AIDS diagnosis (median, 77 vs. 86 months). Men with and without Kaposi's sarcoma did not significantly differ with respect to number of sexual partners, history of certain sexually transmitted or enteric diseases, use of certain recreational drugs (including nitrite inhalants), or participation in certain specific sexual practices. The decline in Kaposi's sarcoma may at least partly be due to a shorter latency period from infection to disease. Although cofactors for the development of Kaposi's sarcoma may exist, many previously hypothesized agents were not supported by this analysis.
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PMID:Kaposi's sarcoma in a cohort of homosexual and bisexual men. Epidemiology and analysis for cofactors. 200 Aug 63

Since the middle of 1987, fewer consistently defined AIDS cases have been reported than expected among homosexual and bisexual men in the United States. This "AIDS deficit" was greater among homosexual and bisexual men in New York City, San Francisco, and Los Angeles, but was also striking among all homosexual and bisexual men in the United States. Deficits were virtually absent among intravenous drug users (IVDUs) in the United States. Three independent sources of data--placebo-controlled trials, pharmaceutical company reports, and the San Francisco Men's Health Study--were used to demonstrate that the amounts of zidovudine (AZT) given prophylactically to those at highest risk of AIDS since March 1987 have been sufficient to account for most of the observed AIDS deficits. Other advances in the medical care of pre-AIDS patients may have combined with AZT to produce the deficits. Other hypothesized explanations were examined and found insufficient to account for the observed AIDS deficits, including: (a) a sudden halt in new human immunodeficiency virus (HIV) infections during the early or mid-1980s; (b) misspecification of the distribution of AIDS incubation times following HIV infection; (c) increasing delays in the reporting of AIDS cases; (d) changes in the surveillance definition of AIDS in 1987; and (e) evolution of attenuated HIV strains. The hypothesis that therapy is affecting national AIDS rates has important implications. Failure to take the effects of therapy into account can lead to serious underestimates by back-calculation of the cumulative numbers infected with HIV and of AIDS incidence over the longer term. Moreover, it appears that AIDS incidence could be retarded in underserved groups, such as IVDUs, by making AZT and other state-of-the-art treatments readily available to AIDS-free patients with advanced immunodeficiency.
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PMID:Therapy may explain recent deficits in AIDS incidence. 231 68

Men (N = 526) who patronized gay bars in three cities completed measures of sexual behavior covering the previous 3 months and psychological measures theoretically pertinent to AIDS risk. Thirty-seven percent of the sample reported engaging in unprotected anal intercourse, the behavior most strongly associated with transmission of human immunodeficiency virus (HIV) infection. Perceived peer norms concerning the acceptability of safer sex practices, AIDS health locus of control scores, risk behavior knowledge, age, and accuracy of personal risk estimation, but not personal HIV serostatus knowledge, were associated with high-risk and precaution-taking behavior.
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PMID:Psychological factors that predict AIDS high-risk versus AIDS precautionary behavior. 231 44

We examined psychiatric correlates of human immunodeficiency virus (HIV) infection in a major risk group for acquired immunodeficiency syndrome, men with hemophilia. A central goal was to identify psychosocial factors associated with increased vulnerability to psychiatric distress after infection with HIV. Seventy-five hemophiliacs, 31 of whom were HIV seropositive (HIV+), were studied. The HIV+ men had elevated depression, anxiety, and anger-hostility symptom scores relative to those of men who were seronegative for HIV. There were no additional symptom differences among men according to infection stage or clinical severity of hemophilia. Men with any of eight psychosocial characteristics were particularly susceptible to effects of infection on mental health: a personal history of psychiatric distress before HIV diagnosis; familial psychiatric history; a high school education or less; low social support from one's wife; low family support; low friend support; a poor sense of mastery over one's life; and experiencing recent life events involving loss. The HIV+ men with one or more such characteristics were highly symptomatic; remaining HIV+ men had significantly lower symptom levels, similar to the low levels noted in the men seronegative for HIV. The findings provide initial empiric support for the notion that clinical services to alleviate emotional distress should be targeted to intervene on HIV+ persons' psychosocial assets and liabilities.
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PMID:Infection with human immunodeficiency virus and vulnerability to psychiatric distress. A study of men with hemophilia. 237 44

At Mulago Hospital in Kampala, Uganda, 270 consecutive patients at the dermatology and sexually transmitted disease (STD) clinic were enrolled in a study to evaluate the association of clinical STD syndromes and human immunodeficiency virus (HIV) infection. Female patients became sexually active earlier than male patients and were younger at marriage. Persons with a history of an STD during the preceding 5 years were more likely to be HIV infected (43%) than those without such a history (26%; OR 2.08, 95% C.I. 1.17, 3.73). Examination at the time of the visit demonstrated an association between genital ulcers and HIV infection in male and female patients (OR 2.21, 95% C.I. 1.08, 4.53, and OR 8.54, 95% C.I. 1.45, 87.55, respectively) but no association between HIV and urethritis or vaginal discharge. The etiologic fraction for HIV infection of genital ulcers was 0.218. Men with a history of contact with prostitutes were more likely to be HIV infected than those without contact (50% versus 28%, p less than 0.05), but once controlled for STDs, this relationship was no longer significant. This study confirms other studies from East Africa that have shown a relationship between genital ulcers and HIV infection. This finding, in the presence of no association between other STD syndromes and HIV infection, suggests that genital ulcers may be truly associated with HIV infection rather than a marker of high-risk activities.
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PMID:The association of genital ulcer disease and HIV infection at a dermatology-STD clinic in Uganda. 239 52

To obtain better understanding of the nature and cost of health care related to human immunodeficiency virus (HIV) infection, medical payment records were analyzed for 204 men, women, and children older than 60 months who had indications of HIV infection. The records were those of Michigan Medicaid, the General Assistance Medical Program, and the Resident County Hospitalization Program, with service dates on or after January 1, 1984, and which were processed by November 30, 1987. Patient payment records were coded according to whether the patient's condition was considered to be pre-HIV, HIV unrelated, possibly HIV related, or HIV related. Average monthly payments were found to be $150 for pre-HIV patient payment records, $114 for those HIV unrelated, $57 for those possibly related, and $1,213 for those related to HIV infection. HIV-related monthly payments rose from about $1,500 per month in the period 3 months prior to the patient's death to more than $8,000 in the last month of life. Men were found to have twice as many claims as women, and men's claims cost about three times as much. A higher percentage of women than men (91 percent versus 37 percent) received pre-HIV paid services, indicating a higher percentage of women were at least initially receiving Medicaid for reasons other than an HIV-related disability. Diagnostic categories that accounted for the bulk of the HIV-related health care utilization included infectious and parasitic diseases, acquired immunodeficiency syndrome, diseases of the respiratory system, and non-HIV-specific immunity disorders. Inpatient hospitalization accounted for more than 75 percent of the payments, followed by physician costs (11 percent), pharmacy costs (5 percent), and outpatient costs (3 percent). A total of 45, or about 22 percent of the recipients, received zidovudine (AZT) prescriptions at an average monthly cost of $404.
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PMID:Analysis of Michigan Medicaid costs to treat HIV infection. 250 70

Between 1978 and 1980, 359 hepatitis B seronegative homosexual and bisexual men were recruited from the San Francisco municipal sexually transmitted disease clinic for hepatitis B vaccine trials. Of the 359 participants, 320 (89%) consented to have their stored blood samples tested for human immunodeficiency virus antibodies. The prevalence of human immunodeficiency virus infection in these 320 vaccine trial participants rose from 0.3% in 1978 to 50.9% in 1988. The annual incidence of human immunodeficiency virus infection showed that seroconversion peaked in 1980-1982, dropped significantly in 1983, and has remained low. Men less than 30 years old on entry into the study seroconverted earlier in the epidemic and had higher incidence rates than men 30 years or older (p = 0.07). No statistical difference in seroconversion rates was found for other demographic variables. Using a Kaplan-Meier survival curve of the cumulative proportion of men without acquired immunodeficiency syndrome by duration of human immunodeficiency virus infection, an estimated 39% (95% confidence interval 27%-51%) will develop acquired immunodeficiency syndrome within 9.2 years of infection. Cox proportional hazard stepwise analysis showed no correlation between age at seroconversion, race, or year of seroconversion and progression to acquired immunodeficiency syndrome.
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PMID:Prevalence, incidence, and progression of human immunodeficiency virus infection in homosexual and bisexual men in hepatitis B vaccine trials, 1978-1988. 253 43

We studied 388 homosexual or bisexual men from the Baltimore-Washington area to define the spectrum of enteric pathogen carriage in a population at high risk for "gay bowel syndrome" in association with human immunodeficiency virus infection. Seventy-seven patients with acquired immunodeficiency syndrome, 68 gay men with symptoms of acute diarrhea or proctitis, and 243 gay men without gastrointestinal symptoms and participating in a natural history study of human immunodeficiency virus infection were selected for study. Approximately 12% of the asymptomatic men harbored at least one enteric pathogen; the most frequently recovered were Chlamydia trachomatis, herpes simplex virus, and Giardia lamblia. Men carrying a pathogen were more likely to be human immunodeficiency virus seropositive (48%) than men without a pathogen (25%) (p = 0.018), more likely to have fewer T helper cells (p = 0.015), and more likely to have a mucopurulent exudate (p = 0.014). We recovered an agent of enteric disease from 68% of gay men presenting with diarrhea or proctitis. Campylobacter species, herpes simplex virus, Neisseria gonorrhoeae, C. trachomatis, G. lamblia, and Shigella species were identified most frequently. The most common pathogen associated with diarrhea in acquired immunodeficiency syndrome was Cryptosporidium (16% of 49 cases). Other agents identified were Clostridium difficile, Vibrio parahemolyticus, Campylobacter species, G. lamblia, Isospora, and cytomegalovirus. Approximately half of the identifiable etiologic agents of diarrhea in acquired immunodeficiency syndrome patients were treatable with antibiotics, but these agents required special culture procedures for detection.
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PMID:Prevalence of enteric pathogens in homosexual men with and without acquired immunodeficiency syndrome. 283 Nov 7

A randomized, double-blind clinical trial of plasma-derived and DNA recombinant hepatitis B virus vaccines was conducted in 186 homosexual men. Nine months after the immunization series (three doses) began, the seroconversion rate in the plasma vaccine group was 88% (68/77); this was significantly higher than the 74% (60/81) response rate of the recombinant vaccine group. Men positive for antibody to the human immunodeficiency virus (HIV) had a considerably higher nonresponse rate to either vaccine than expected in non-HIV-infected homosexual men. The odds ratios of nonresponse to hepatitis B virus vaccine for HIV-seropositive vs HIV-seronegative subjects were 12.0 (95% confidence interval, 1.7 to 89.3) and 13.6 (95% confidence interval, 2.3 to 148.3) for the plasma and DNA recombinant vaccines, respectively.
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PMID:Comparative immunogenicity of plasma and recombinant hepatitis B virus vaccines in homosexual men. 297 31


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