6 results on '"Nunes, David"'
Search Results
2. Chronic hepatitis C virus infection is associated with all-cause and liver-related mortality in a cohort of HIV-infected patients with alcohol problems.
- Author
-
Fuster, Daniel, Cheng, Debbie M., Quinn, Emily K., Nunes, David, Saitz, Richard, Samet, Jeffrey H., and Tsui, Judith I.
- Subjects
ALCOHOLISM ,ANALYSIS of variance ,CHI-squared test ,CONFIDENCE intervals ,ENZYME-linked immunosorbent assay ,FISHER exact test ,HIV-positive persons ,LIVER failure ,QUESTIONNAIRES ,RESEARCH funding ,SURVIVAL analysis (Biometry) ,SURVIVAL ,PROPORTIONAL hazards models ,DATA analysis software ,DESCRIPTIVE statistics ,KAPLAN-Meier estimator ,CHRONIC hepatitis C - Abstract
Aims To assess the association between hepatitis C virus ( HCV) infection and overall and liver-related death in human immunodeficiency virus ( HIV)-infected patients with alcohol problems. Design We analyzed data from a cohort of HIV-infected adults with current or past alcohol problems enrolled between 2001 and 2003, searching for causes of death until 2010 using the National Death Index. Setting and participants Participants were HIV-infected adults with current or past alcohol problems, recruited in Boston, MA from HIV clinics at two hospitals, homeless shelters, drug treatment programs, subject referrals, flyers and another cohort study with comparable recruitment sites. Measurements The primary and secondary outcomes were all-cause and liver-related mortality, respectively. The main independent variable was hepatitis C virus ( HCV) RNA status (positive versus negative). Mortality rates and Kaplan- Meier survival curves were calculated by HCV status for both overall and liver-related mortality. Cox proportional hazards models were used to assess the association between HCV infection and overall and liver-related death, adjusting for alcohol and drug use over time. Findings A total of 397 adults (50% HCV-infected) were included. As of 31 December 2009, 83 cohort participants had died (60 HCV-infected, 23 HCV-uninfected; log-rank test P < 0.001), and 26 of those deaths were liver-related (21 HCV-infected, five HCV-uninfected; log-rank test P < 0.001). All-cause and liver-related mortality rates were 4.68 and 1.64 deaths per 100 person-years for HCV-infected patients and 1.65 and 0.36 per 100 person-years for those without HCV, respectively. In the fully adjusted Cox model, HCV infection was associated with both overall [hazard ratio ( HR) = 2.55, 95% confidence interval ( CI) = 1.50-4.33, P < 0.01], and liver-related mortality ( HR = 3.24, 95% CI = 1.18-8.94, P = 0.02]. Conclusion Hepatitis C virus infection is associated independently with all-cause and liver-related mortality in human immunodeficiency virus-infected patients with alcohol problems, even when accounting for alcohol and other drug use. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
3. Impact of Lifetime Alcohol Use on Liver Fibrosis in a Population of HIV-Infected Patients With and Without Hepatitis C Coinfection.
- Author
-
Fuster, Daniel, Tsui, Judith I., Cheng, Debbie M., Quinn, Emily K., Bridden, Carly, Nunes, David, Libman, Howard, Saitz, Richard, and Samet, Jeffrey H.
- Subjects
COMPLICATIONS of alcoholism ,CONFIDENCE intervals ,EPIDEMIOLOGY ,HEPATITIS C ,HIV-positive persons ,LIVER diseases ,LONGITUDINAL method ,SCIENTIFIC observation ,QUESTIONNAIRES ,RESEARCH funding ,LOGISTIC regression analysis ,DATA analysis ,FIBROSIS ,PREDICTIVE tests ,CROSS-sectional method ,RECEIVER operating characteristic curves ,DATA analysis software ,DESCRIPTIVE statistics - Abstract
Background The effect of alcohol on liver disease in HIV infection has not been well characterized. Methods We performed a cross-sectional multivariable analysis of the association between lifetime alcohol use and liver fibrosis in a longitudinal cohort of HIV-infected patients with alcohol problems. Liver fibrosis was estimated with 2 noninvasive indices, ' FIB-4,' which includes platelets, liver enzymes, and age; and aspartate aminotransferase/platelet ratio index (' APRI'), which includes platelets and liver enzymes. FIB-4 <1.45 and APRI <0.5 defined the absence of liver fibrosis. FIB-4 >3.25 and APRI >1.5 defined advanced liver fibrosis. The main independent variable was lifetime alcohol consumption (<150 kg, 150 to 600 kg, >600 kg). Results Subjects ( n = 308) were 73% men, mean age 43 years, 49% with hepatitis C virus ( HCV) infection, 60% on antiretroviral therapy, 49% with an HIV RNA load <1,000 copies/ml, and 18.7% with a CD4 count <200 cells/mm
3 . Forty-five percent had lifetime alcohol consumption >600 kg, 32.7% 150 to 600 kg, and 22.3% <150 kg; 33% had current heavy alcohol use, and 69% had >9 years of heavy episodic drinking. Sixty-one percent had absence of liver fibrosis and 10% had advanced liver fibrosis based on FIB-4. In logistic regression analyses, controlling for age, gender, HCV infection, and CD4 count, no association was detected between lifetime alcohol consumption and the absence of liver fibrosis ( FIB-4 <1.45) (adjusted odds ratio [ AOR] = 1.12 [95% CI: 0.25 to 2.52] for 150 to 600 kg vs. <150 kg; AOR = 1.11 [95% CI: 0.52 to 2.36] for >600 kg vs. <150 kg; global p = 0.95). Additionally, no association was detected between lifetime alcohol use and advanced liver fibrosis ( FIB-4 >3.25). Results were similar using APRI, and among those with and without HCV infection. Conclusions In this cohort of HIV-infected patients with alcohol problems, we found no significant association between lifetime alcohol consumption and the absence of liver fibrosis or the presence of advanced liver fibrosis, suggesting that alcohol may be less important than other known factors that promote liver fibrosis in this population. [ABSTRACT FROM AUTHOR]- Published
- 2013
- Full Text
- View/download PDF
4. Barriers to Treatment of Hepatitis C in HIV/HCV-Coinfected Adults with Alcohol Problems.
- Author
-
Nunes, David, Saitz, Richard, Libman, Howard, Cheng, Debbie M., Vidaver, John, and Samet, Jeffrey H.
- Subjects
- *
HEPATITIS C , *ALCOHOLISM , *ALCOHOL drinking , *HIV-positive persons , *DISEASE risk factors , *LIVER diseases , *CELLS , *NEEDLE sharing , *SUICIDAL behavior - Abstract
Background: Alcohol use and human immune deficiency virus (HIV) infection are both associated with accelerated progression of hepatitis C virus (HCV) disease and reduced response rates to interferon therapy. In this study, we assessed the prevalence of barriers to interferon treatment in a population of HIV/HCV-coinfected patients with current or past alcohol problems and the extent to which they received treatment to address the barriers. Methods: This is a cross-sectional, descriptive analysis of baseline data from a prospective study assessing the impact of HCV and alcohol use on HIV disease progression. Using consensus guidelines, subjects were categorized as having absolute, relative, or no contraindications to interferon therapy for HCV. Absolute contraindications to treatment included heavy alcohol use, decompensated liver disease, CD4 cell count <100 cells/ μL, recent needle sharing, and suicidal ideation. Relative contraindications included moderate alcohol use, recent injection drug use, depressive symptoms, and CD4 cell count from 100 to 199 cells/ μL. Results: Of 401 HIV-infected subjects, 200 were HCV RNA-positive. Fifty-three percent had an absolute contraindication to interferon therapy, 35% a relative but no absolute contraindication, and only 12% had no contraindication. Of those with an absolute contraindication, 61% reported heavy drinking and the majority (88%) had multiple contraindications. These contraindications were present despite the fact that over 50% were in receipt of substance abuse and mental health treatment. Conclusions: Continued alcohol and drug use as well as depressive symptoms are the major barriers to interferon therapy in HCV/HIV-coinfected subjects and these barriers persist despite high treatment rates for these problems. Therefore, more intensive treatments of alcohol, drug, and mental health issues are needed to improve HCV treatment eligibility in HCV/HIV-coinfected persons. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
5. Alcohol Consumption and Hepatitis C Virus (HCV) RNA Levels in HIV/HCV Coinfected Patients.
- Author
-
Fuster, Daniel, Nunes, David, Cheng, Debbie M., Saitz, Richard, Samet, Jeffrey H., Marcondes, Maria Cecilia Garibaldi, and Kaul, Marcus
- Subjects
- *
ALCOHOL , *MIXED infections , *HEPATITIS C virus , *ALCOHOL drinking , *HEPATITIS C , *RNA - Abstract
Background: The impact of Hepatitis C virus (HCV) RNA levels on the evolution of chronic HCV infection-related liver damage is controversial. Heavy alcohol use is believed to have a deleterious impact on the course of HCV disease, but current knowledge about the possible effect of alcohol use on HCV RNA levels in HIV/HCV coinfected patients is limited. Methods: We examined 107 HIV/HCV-infected individuals with current or past unhealthy alcohol use to assess the association between alcohol consumption (any drinking vs. abstinent) and HCV RNA levels. Results: Participants were 75% male, with a mean age of 43 years, and 63% were on antiretroviral therapy. Mean (SD) log HIV RNA was 3.1 (1.4) and mean (SD) log HCV RNA was 6.1 (0.8). Past-month alcohol use was present in 38% of participants. In a multivariable linear regression analysis we found no significant differences in mean log HCV RNA levels between those reporting alcohol use and those who were abstinent [β (95%CI): −0.04 (−0.34, 0.26), p = 0.79)]. There was no significant association between any heavy drinking day and HCV RNA level (0.07, 95% CI: (−0.24, 0.38), p = 0.66). Conclusions: We did not detect significant associations between alcohol use and HCV RNA levels among HIV/HCV coinfected patients. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
6. Alcohol Consumption and HIV Disease Progression.
- Author
-
Samet, Jeffrey H., Cheng, Debbie M., Libman, Howard, Nunes, David P., Alperen, Julie K., and Saitz, Richard
- Subjects
- *
ALCOHOL drinking , *HIV infections , *ANTIRETROVIRAL agents , *PHYSIOLOGICAL effects of alcohol , *ANTIVIRAL agents - Abstract
The article assesses the relation between alcohol consumption and laboratory markers of HIV disease progression. It shows that heavy alcohol consumption has a negative impact on the CD4 cell count in HIV-infected persons not receiving antiretroviral therapy. The findings suggest that avoiding heavy alcohol consumption in patients not on ART may have a beneficial effect on HIV disease progression.
- Published
- 2007
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.