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Query: UMLS:C0019693 (HIV)
 170,526 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The behaviors and attributes of 503 Scottish injecting drug users were modeled using the linear structural equations program LISREL. Drug use was directly related to prison experience, sexual activity, sharing of injecting equipment, and prostitution. Although the prevalence of HIV among the sample was low (2.0%), the pattern of risk behaviors observed in the data affords potential for future spread of the virus. Harm reduction measures taken by injectors in response to the threat posed by AIDS were inversely related to drug use but, more encouragingly, directly related to awareness of the disease, treatment for drug use, and prostitution.
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PMID:Modeling the behavior and attributes of injecting drug users: a new approach to identifying HIV risk practices. 842 77

Drug-exposed mothers and infants continue to challenge maternal and infant health care resources. The woman who abuses drugs may have a complex social history and high resistance to change. Drug use may be intergenerational and long-standing. Although cocaine may be a drug of choice, there is often polydrug abuse, complicating the assessment of the newborn who may be suffering from an overall unstable intrauterine environment due to poor general health and lack of nutrition, inadequate prenatal care, and risk of exposure to contaminants from street drugs and of infection, including Hepatitis B and HIV. Infants must be thoroughly assessed and treated as any newborn at risk. Drug screening and child welfare issues are discussed. Hepatitis B immunization is recommended. Ongoing assessment of the infant and intervention techniques are described. Since many drug-exposed infants go home with their mothers, an integrated plan of care for mother and infant may contribute to a therapeutic relationship, facilitate maternal attachment behaviors, and motivate maternal rehabilitation. For nurses caring for these demanding families, burnout prevention and self-care strategies are discussed.
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PMID:The drug-exposed mother and infant: a regional center experience. 847 11

We compared three groups of injecting drug users in a large cross-sectional study on HIV/AIDS and risk behaviors in Sydney, Australia, to determine what differences existed between those who had never been in treatment (n = 458), had previously been in treatment (n = 387), and were currently in treatment (n = 367). Drug use for those currently in treatment was assessed during the last typical using month before treatment. Those previously and currently in treatment were similar in terms of drug use patterns and HIV risk-related injecting behaviors. Those never in treatment were younger, had a lower level of HIV risk-related injecting behaviors, and reported lower drug use and less involvement in the drug subculture. There was little difference between the three groups on HIV risk-related sexual behaviors. These data suggest that those never in treatment are less dysfunctional and possibly less involved in drug-using careers, whereas there appears to be a close relationship between being previously and currently in treatment.
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PMID:A comparison of drug use and HIV infection risk behavior between injecting drug users currently in treatment, previously in treatment, and never in treatment. 848 15

The current report examined HIV-related high risk sexual behaviors among a small sample of gay and bisexual male methamphetamine abusers in Los Angeles. Participants were 16 methamphetamine-abusing or -dependent gay or bisexual males who participated in a treatment demonstration project between 1989 and 1993. All participants completed the NIDA/WAVE survey, a detailed inventory of HIV-related risk behaviors. Findings indicate a strong connection between methamphetamine abuse and high-risk sexual behavior. For the 12 months prior to treatment 62.5% of participants reported having anal insertive sex without a condom, and 56.3% reported having sex with someone who had HIV. Drug use before or during sex, measured on a 5-point Likert scale, was frequent (M = 4.27, SD = 0.7). Implications for treatment of gay and bisexual male methamphetamine abusers and prevention of HIV among this population are discussed.
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PMID:Sexual HIV risk among gay and bisexual male methamphetamine abusers. 921 45

This paper describes changes in demographic characteristics and drug use patterns of persons who died while enrolled in a New York City methadone-maintenance program during the years preceding and subsequent to the AIDS epidemic. Persons dying from AIDS were more likely to be younger, Hispanic, and male than those dying from other causes. Drug use increased during the 12-year study period, and the spread of the HIV infection among drug users may be reflected in an increased use of injectable drugs.
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PMID:A 12-year study (1975-1986) of mortality in methadone-maintenance patients: selected demographic characteristics and drug-use patterns of AIDS and non-AIDS-related deaths. 978 29

In the United States, the AIDS epidemic is a dynamic process with increasing rates of AIDS reported among women, minority populations, heterosexual men, and users of drugs by routes other than injection. The 1993 CDC AIDS definition change has created some difficulties in interpreting trends in the United States. Drug use continues to represent a significant problem among HIV-infected persons. Several strategies have been advanced to decrease transmission of HIV among drug users, their sexual partners and children. However, more effective and comprehensive prevention and treatment strategies are needed.
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PMID:HIV/AIDS and drug abuse: epidemiology and prevention. 984 34

Correlates of crack cocaine use were studied among a targeted sample of migrant workers and their sexual partners (n = 571) in rural Southern Florida. Employment among men and recent drug-user treatment among men and women are positively related to crack use, as is involvement in crime and prostitution. Among women but not men, living with children is negatively related to crack use. Drug use and HIV prevention programs should intervene with individuals and their families and social groups. Migrant workers and their sexual partners also need effective drug-user treatment with long-term relapse prevention services.
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PMID:Crack cocaine use in rural migrant populations: living arrangements and social support. 1021 Jan

Guidelines, implemented by clinical pharmacists, were developed by the pharmacy and therapeutics subcommittee on a dedicated service caring for hospitalized patients with human immunodeficiency virus infection or the acquired immunodeficiency syndrome (AIDS) who required granulocyte colony-stimulating factor (G-CSF) therapy. Drug use and evaluation was conducted on all patients with AIDS who were prescribed G-CSF, and education was provided to medical house staff. Clinical data from chart review and laboratory and billing data bases of the hospital medical information system were compared for the 9-month intervention period (IP) with data from the 9-month preintervention period (PIP). Comparing the IP and PIP, the mean number of G-CSF doses (0.29 vs 0.51) and pharmacy costs per day ($112 vs $200) decreased, with no change in the number of patients requiring G-CSF. The 1.3 pharmacist interventions per patient resulted in a decrease to 2.4 doses per admission from a baseline of 5.9 (p<0.0001). Mean hospital stay (11.9 vs 13.8 days) and mean number of days of neutropenia did not differ for IP and PIP groups. Effectively implemented pharmacist-based interventions can decrease hospital costs without increasing patient morbidity.
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PMID:Clinical guidelines and pharmacist intervention program for HIV-infected patients requiring granulocyte colony-stimulating factor therapy. 1022 75

It is generally thought that infection of the central nervous system (CNS) by HIV-1 can occur early, even around the time of seroconversion, and evidence from animal studies supports this. However, the mode and timing of viral entry remain poorly understood since there have been comparatively few studies of the early neuropathology of HIV infection. In this study, samples of frontal and temporal lobes, and basal ganglia, were selected from 12 HIV-positive drug users who had been infected for 4-130 months before death, 10 HIV-negative drug users and 10 non-drug using controls, all age and sex matched. Routine and immunocytochemical staining showed that leptomeningeal and perivascular lymphocytic infiltrate was upregulated in HIV-infected cases compared with the two control groups, and choroid plexitis was confined to the HIV-positive subjects, suggesting an association with viral infection. In contrast, CD68-positive microglia were enhanced in both HIV- positive and HIV-negative drug users, considerably above the baseline seen in normal controls. However, there was no statistical difference between the three groups in relation to astrocytes. Screening and competitive polymerase chain reaction (PCR) undertaken on multiple samples including brain tissue, choroid plexus and leptomeninges from four of the HIV-positive subjects and one control case showed that the pro-viral burden was never more than 13 copies/microg DNA and was negative in multiple samples from one HIV-positive case and one control case. All the basal ganglia samples were PCR-negative. This study has not revealed any t spots' of viral load in brain tissue, choroid plexus or meninges, either early or late in the course of pre-symptomatic HIV infection. Drug use alone is associated with significant upregulation of microglia and this may predispose to HIV infection of the nervous system in drug users.
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PMID:Upregulation of microglia in drug users with and without pre-symptomatic HIV infection. 1056 26

The objectives of this study were to investigate the prevalence of infections with hepatotrophic viruses in an anti-human immunodeficiency virus (HIV)-positive population from Buenos Aires and to compare it among the main risk groups for HIV infection. Four hundred and eighty-four consecutive patients attending the HIV outpatients clinic were studied: 359 men and 125 women, median age 29 years (range 16-67 years); 35.5% had presented acquired immune deficiency syndrome (AIDS)-defining conditions. Two hundred and thirty-four patients were intravenous drug users (IVDU), 99 had homosexual and 142 heterosexual preference, seven had received blood transfusions and two had no risk factors. Hepatitis B surface antigen (HBsAg), and antibodies to hepatitis B core antigen (HBcAb) and to hepatitis C virus (anti-HCV) were investigated in all patients; antibodies to HBsAg (HBsAb) and IgG antibodies to hepatitis D virus (anti-HDV) in all HBcAb-positive patients; hepatitis B e antigen and antibodies to HBeAg (HBeAg) in all HBsAg-positive patients; IgG antibodies to hepatitis A virus (anti-HAV) in the first 307 patients; and IgG antibodies to hepatitis E virus (anti-HEV) in the first 91 patients. As control groups, contemporary voluntary blood donors were studied for prevalence of HAV, HBV, HCV and HEV. The percentages of HBcAb, HBsAg, anti-HCV and anti-HEV (58.5, 14.5, 58.5 and 6.6%, respectively) were significantly higher in anti-HIV-positive patients than in control groups (3.2, 0.5, 1.0 and 1.8%, respectively) (P = 0.000). The prevalence of HBcAb was significantly higher in IVDU (72.6%) than in heterosexuals (33.8%) (P = 0.0001) and in homosexuals (59.6%) (P = 0.0189). The percentage of HBsAg was significantly higher in IVDU (19.2%) than in heterosexuals (6.3%) (P = 0.0004). Anti-HCV was significantly higher in IVDU (92.3%) than in homosexuals (14.1%) and in heterosexuals (33.1%) (P = 0.000 in both cases). The prevalence of anti-HDV was relatively low (1.9%). There was no difference in the percentage of anti-HAV between HIV-positive and negative subjects. In conclusion, there is a high prevalence of HBV and HCV infections in HIV-positive patients from our area. Drug use is the main route of transmission, but prevalence of HCV in patients with, probably, sexually acquired HIV infection is also higher than in the control group. The increased prevalence of HEV infection in HIV-positive individuals is another provocative finding that warrants further study.
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PMID:Prevalence of hepatitis viruses in an anti-human immunodeficiency virus-positive population from Argentina. A multicentre study. 1084 30


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