Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019693 (HIV)
 170,526 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The authors report on an anti-hepatitis C virus antibody (HCV Ab) prevalence (6.9%) in 622 homo-bisexual males from Northern Italy, voluntarily attending an HIV and STDs screening program in the period 1984-89. The anti-HCV antibody prevalence shows a significant correlation with: i) presence of serological markers for HBV (O.R. = 3.12, 95% C.I. = 1.53-6.52) and HIV (O.R. = 12.09; C.I. = 6.52-22.52) infection; ii) a stable relationship with an anti-HCV antibody positive partner (O.R. = 7.79; 95% C.I. = 2.50-23.90); iii) more than twenty different male partners per year (O.R. = 2.55; 95% C.I. = 1.17-5.66). These data demonstrate the existence of a sexual transmission of HCV among homosexuals. This route might contribute in maintaining endemic levels of HCV infection in the homo-bisexual population and it might represent an important way of spreading the virus in the general population too.
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PMID:Anti-hepatitis C virus antibodies amongst Italian homo-bisexual males. 128 16

Voluntary HIV testing was used to study the extent of HIV-1 infection in patients attending sexually transmitted disease (STD) clinics in England and Wales between 1985 and 1990. Homosexual and bisexual men and 10-20% of heterosexual men and women were invited to complete a study record and have an HIV-1 antibody test. The rate of newly diagnosed HIV-1 infection was higher in homosexual and bisexual men than in heterosexual clinic attenders. It was also higher in patients attending clinics in the South East compared with those attending clinics in other regions. From 1988 onwards, HIV infection was identified in heterosexual men and women who did not report behavioural risk factors associated with increased risk of HIV transmission. In the early years of the study, the proportion that agreed to complete a study record and have an HIV-1 antibody test was high in all groups. This proportion declined in those attending clinics in the South East, particularly among heterosexual men and women, less than 50% of whom agreed to take part in the study in 1989 and 1990. The decline in acceptance rate made voluntary testing unsuitable for monitoring trends in HIV infection. Unlinked anonymous HIV testing, which minimises the effect of participation bias, has become the method of choice for monitoring the prevalence of HIV infection.
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PMID:Voluntary testing to measure HIV prevalence in sexually transmitted disease clinics. 128 94

Between January 1987 and January 1991, 168 known HIV-infected prisoners have been incarcerated in Dublin's Mountjoy prison. This figure constitutes 16.6% of the total HIV-infected population in the Republic of Ireland over the same period. One hundred and forty-one (84%) of these prisoners have attended the Department of Genitourinary Medicine, St James's Hospital, Dublin. This group displayed considerable morbidity from HIV-related disease. Respiratory tract infection was the most frequent complication seen. Much additional morbidity was directly attributable to intravenous drug use. A survey of a representative group of inmates revealed that 64.7% were diagnosed HIV-positive in prison. The mean length of time spent incarcerated since the diagnosis of HIV infection was 38.9 months. Twenty-nine of 34 individuals who answered a questionnaire were imprisoned for drug-related crimes and 32 of 34 prisoners admitted to parenteral drug use within the prison. As the HIV epidemic unfolds in Dublin, increasing numbers of prisoners with symptomatic HIV disease will spend time incarcerated in Mountjoy prison. This will pose a considerable burden on prison and hospital medical services alike.
Int J STD AIDS
PMID:The impact of HIV disease on an Irish prison population. 128 18

Two hundred and fifty attendees at two London genitourinary medicine clinics were asked to complete an anonymous self-administered questionnaire, enquiring about sexual behaviour whilst abroad. Two hundred and forty-three questionnaires were evaluable. In the study group there were 116 women, and 127 men (62 heterosexuals and 65 homosexuals). Ninety women, 53 heterosexual men and 53 homosexual men had travelled abroad over the preceding 6 months. Of these 18 (20%) of women, 26 (51%) of heterosexual men and 19 (36%) of homosexual men had sex with a local foreign contact on holiday. Although both heterosexual and homosexual men were statistically more likely to have sex abroad with a local inhabitant, women were more likely to have unprotected sexual intercourse with a local partner. This has important implications for the spread of sexually transmitted disease including hepatitis B and HIV.
Int J STD AIDS
PMID:Sexual behaviour amongst travellers: a study of genitourinary medicine clinic attenders. 128 21

A prevalence of 12.8% for anti-HIV-1 and a prevalence of 16.8% for anti-syphilis antibodies was found in 359 gynaecological inpatients admitted in the Department of Gynaecology and Obstetrics, Muhimbili University College of Health Sciences from 1988 to 1990. The highest HIV prevalence (17.3%) was observed in the youngest age group (14-20 years), whereas the highest syphilis prevalence (22.2%) was found in the oldest age group (> 45 years). Infections with HIV and syphilis were both significantly associated with variables related to sexual behaviour, such as marital status, age at first intercourse and number of sexual partners in the past ten years. After adjustment for these common risk variables linked to sexual behaviour, syphilis infection was still associated with a more than twofold higher risk of HIV infection (odds ratio (OR) = 2.60, p = 0.02) and trichomonas vaginalis infection with a nearly threefold higher risk (OR = 2.96, p < 0.001). These data characterize patients at risk for HIV infection among inpatients of a gynaecological department in East Africa, and indicate that effective measures to prevent sexually transmitted disease may reduce HIV transmission.
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PMID:Risk factors for HIV infection in gynaecological inpatients in Dar es Salaam, Tanzania, 1988-1990. 129 34

By the end of March 1990 470 HIV positive patients, 77% injection drug use (IDU) related, had attended the outpatient department of the Regional Infectious Disease Unit with a cumulative loss to follow-up of only 20%. Coincident with the prescribing of oral methadone and a specific all-day IDU-related HIV medical clinic the total number of appointments increased from 28/month in May 1986 to 300/month in May 1989 (P less than 0.001) and the number of defaulted appointments decreased from a maximum of 60% (17/28) to 16% (48/294, P less than 0.001) in these months. There was a significant initial increase in the number of defaulted appointments for the infectious disease (ID) clinics from 11% (77/726) to 16% (124/797, P less than 0.01) which returned to previous levels once a specific IDU-related HIV clinic was established. There was also a significant decline in the number of new patients referred which was greater for the urinary tract infection clinics (108 to 56 per 6 months, P less than 0.0001) than for the ID clinics (119 to 88 per 6 months, P less than 0.05).
Int J STD AIDS
PMID:Outpatient medical care of injection drug use related HIV. 131 59

Retrospective analysis of medical records of 557 HIV positive patients (including 113 with AIDS) revealed 17 patients with an antemortem clinical diagnosis of cytomegalovirus (CMV) disease. This group comprised 7 injection drug users (2 male and 5 female) and 10 homosexual men. Males were significantly older than females, and homosexual men were significantly older than drug users at the time of diagnosis of CMV. All 17 patients had evidence of retinitis, and 6 also had evidence of extraocular disease. CMV retinitis was the AIDS defining diagnosis in two patients, and the attack rate of CMV in all AIDS patients progressively increased with time, with a 3-year CMV-free survival of 57%. Fifteen patients with CMV disease had evidence of previous CMV infection (CMV IgG positive), with 7 also having a positive CMV IgM and 10 a positive viral culture. The mean CD4+ lymphocyte count at diagnosis of CMV was 17 cells/mm3, compared with 68 cells/mm3 at diagnosis of AIDS. Therapy was unsatisfactory, often being complicated by marrow suppression. Relapse occurred in 11 patients after initial improvement but despite this only 3 patients died with severe visual impairment. The mean survival after a diagnosis of CMV was 10.5 months. This study confirms that disease caused by CMV is usually a late manifestation of AIDS, and the increasing prevalence among patients with AIDS implies that, the longer the survival, the greater the risk of disease. Frequent fundoscopy in HIV positive patients is of paramount importance particularly in patients who have a CD4+ lymphocyte count of less than 100 cells/mm3.
Int J STD AIDS
PMID:Cytomegalovirus disease in AIDS: the Edinburgh experience. 132 73

Peter Duesberg is currently involved in a complex debate over the relationship between HIV and AIDS. The conventional wisdom is that HIV causes AIDS. Duesberg contends that HIV is neither necessary nor sufficient to cause AIDS. Representatives of the Amsterdam Cohort Studies (ACS) contend the opposite. Duesberg's 1st point was that AIDS does not have the characteristics of an ordinary infections disease. Duesberg maintains that in AIDS patients there are too few CD4 cells infected by HIV for it to be the cause of the disease. A member of ACS pointed out that this may be attributed to fact that the complexes formed between CD4 molecules and the HIV envelope may cause HIV related apoptosis. Thus the process allows HIV to have a systemic effect on the immune system. Duesberg's primary claim is that HIV cannot be isolated from every HIV antibody positive individual and that the disease progression is not always accompanied by active viral replication. The members of the ACS claim that this appearance occurred because of a lack of accurate testing ability and the current methods have resulted in 100% virus recovery rates and that virus isolates with enhanced replicative and cytopathic properties are associated with disease progression. Duesberg claims that if AIDS were an ordinary infectious disease, it would spread randomly between the sexes, yet in Europe and the US AIDS affects mostly men. The ACS claims that AIDS is similar to other STDs in that it does not spread randomly, but rather it spreads through specific subsets of the population. Duesberg claims that AIDS does not follow Farr's law which predicts an increase in the epidemic curve followed by an even more rapid descent. The ACS claims that both HIV and AIDS has followed Farr's law within risk groups. Duesberg pointed out that HIV does not satisfy Koch's 3rd postulate because while AIDS has been transmitted accidentally to researchers through blood, it has never been transmitted from accidental exposure to purified HIV.
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PMID:Alternative view on AIDS. 135 Dec 27

Since 1989, 21 persons with unexplained CD4+ T-lymphocyte depletion, but without evident human immunodeficiency virus (HIV) infection, have been described (1-12). These reports included persons who have resided in the United States and six other countries and who sought medical care for conditions often associated with immune deficiency. Some of these cases were also described at the VII International Conference on AIDS/III STD World Congress in Amsterdam. In addition, CDC has received reports of five persons from three states who have had persistently low CD4+ T-cell levels but who have had no evidence of HIV infection or underlying disease processes or therapies known to be associated with T-cell depletion. In some of these five patients, opportunistic infections were diagnosed that frequently occur in persons with acquired immunodeficiency syndrome (AIDS). This report describes preliminary clinical and laboratory findings from an ongoing investigation by CDC of these five patients.
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PMID:Unexplained CD4+ T-lymphocyte depletion in persons without evident HIV infection--United States. 135 46

A new generation combination test (Detect-Plus, IAF BioChem, Montreal, Canada) based on synthetic peptides for HIV-1, HIV-2, HTLV-I, and HTLV-II was compared with three routine commercial screening assays and confirmatory assays to determine its sensitivity and specificity and to evaluate it as a substitute screening method. Samples from 356 sexually transmitted disease (STD) patients were tested by the four screening tests. All initially reactive samples were retested in duplicate by the corresponding EIA and repeatedly reactive samples were confirmed by Western blots for HIV-1, HIV-2, and HTLV-I/II. The confirmed positives detected by each screening assay were HIV-1 (23/356, 6.46%), HIV-2 (11/356, 3.09%), and HTLV-I/II (5/356, 1.4%). The new generation Detect-Plus test produced only two results (2/356, 0.56%) that were presumed to be false-positives in comparison to the screening tests, but the OD/CO values were just slightly high (1.5 and 1.9). There were no false-negative results, indicating that the sensitivity of the new combination test was excellent (100%). Compared with routine retroviral EIA assays, the test is easy to perform--the total time requirement is only 2 hr and there is no need for incubation equipment. The OD/CO values were very high when samples were positive, making even visual interpretation possible. We conclude that this new combination assay is an excellent screening method for detection of antibodies to the human retroviruses, and may be particularly useful for screening blood for transfusion and in epidemiological investigations.
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PMID:Evaluation of a new generation synthetic peptide combination assay for detection of antibodies to HIV-1, HIV-2, HTLV-I, and HTLV-II simultaneously. 135 83


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