Abstract Book Vol. 2 [International Conference on AIDS (14th: 2002: Barcelona, Spain)]

78 Abstracts WePeB5996-WePeB6000 XIV International AIDS Conference WePeB5996I Strategies for Immune Reconstitution: Selenium Cytokine Action in HIV/AIDS M.J. Miguez-Burbano, P. Ruiz, A. Rodriguez, X. Burbano, G. Castillo, L.M. Pineda, R. Lecusay, G. Shor-Posner. University of Miami School of Medicine, University of Miami School of Medicine, Dept. of Psychiatry (D21), 1400 N. W 10th ave., 6th floor, Miami, Florida 33136, United States Background: Both low selenium and high IL8 levels have been associated with immune dysfunction, and increased HIV-1 replication. The mechanisms mediating these actions are mainly unknown. The interaction between selenium and IL8 levels in relationship to immune response during HAART was investigated. Methods: Selenium status and immune parameters were evaluated every 6 months in a randomized subsample of 30 participants from a cohort of 259 HIV+ subjects enrolled in a randomized, double blind, placebo-controlled selenium study. Pills were dispensed monthly. Results: Of the 30 subjects, 10 were without antiretrovirals and 20 had HAART Unblinding indicated that 15 of the participants received selenium (200 rg/daily) and 15 placebo. After 6 months, participants with selenium levels <145 [ig/L had significantly higher IL8 levels (90.7~20.4), than those with selenium >145 [[g/L (29.9~9 p=0.001). No significant differences in IL8 or selenium levels were observed between HAART (IL8 75.5~26.7; Se 133~40) vs. non-treated (50.7~18; 127.7~35.3, p=0.4). Significant positive correlations were demonstrated between IL8 levels and viral load (r=0.596, p=0.007) and CD56 percentage (r=-.385, p=0.05). Those with plasma selenium levels <145 itg/L had significantly higher viral load levels (61861.5~137822) than those with plasma selenium levels >145 [tg/L (22006.5~75317, p=0.03). Conclusions: These findings and the negative relationship between selenium and IL8 suggest that selenium's effects on HIV disease could be partially mediated by a reduction of IL8 circulating levels; and independent of HAART administration. Support: NIH-Fogarty. Presenting author: Maria Jose Miguez-Burbano, University of Miami School of Medicine, Dept. of Psychiatry (D21), 1400 N.W. 10th ave., 6th floor, Miami, Florida 33136, United States, Tel.: +1305-243-4072, Fax: +1305-243-4687, E-mail: m. [email protected] WePeB5997 Anthropometric equations select HIV+ men and women with distinctly abnormal fat accumulation and distribution D.P. Kotler', N. Muurahainen2, P. Chang2, E.S. Engelson', J. Wang1, S.B. Heymsfeld', J.M. Gertner2. 'St. Luke's-Roosevelt Hospital Center, st. luke's roosevelt hospital center, 421 west 113th street, new york, ny 10025, United States; 2Serono, Inc., Rockland, MA, United States Background: Patients (pts) with HIV-associated Adipose Redistribution Syndrome (HARS) have excess visceral adipose tissue (VAT), dorsocervical fat, and/or other upper body subcutaneous fat. To enter a multi-center trial of growth hormone (Serostim~) in HARS, HIV pts were required to have increased waist circumference (WC) and waist-hip ratios (WHR) by criteria of Chang et al (2001, 2002). In this analysis, baseline body composition of HARS pts was compared to that of healthy male (M) and female (F) controls (C) from the SLRHC Program Project DK 42618 database. Methods: All subjects underwent anthropometric measurements, DXA scans, and imaging of VAT and subcutaneous abdominal tissue (SAT) at the L4-5 level by CT scan in HARS pts and MRI in C. Data from first 53 HARS pts (24.5% female) who met eligibility criteria were compared to that of healthy M (n= 85) and F (n=96) of similar age and height using two-sided Wilcoxon rank-sum tests. Results: Compared to C, HARS pts did not differ significantly in weight, body mass index, or hip circumferences. However, HARS M and F had significantly greater chest circumferences, WC, WHR, and VAT than C (all p < 0.0007). Mean VAT in HARS M & F was 338 ~ 76 and 246 ~ 33 cm2, respectively, compared to C (81 ~ 47 and 59 ~ 50 cm2). HARS pts also had significantly greater DXA trunk/limb fat, abdominal VAT/SAT, and VAT/TAT ratios than C. Mean VAT, trunk/limb fat, VAT/TAT, and SAT/VAT ratios in HARS were two standard deviations (SD) above means for respective C. SAT and SAT/TAT ratios in HARS were significantly lower and >2 SD below the mean for those measured in C. Conclusion: The equations of Chang et al. selected HIV+ persons with distinctly increased VAT and abnormal fat distribution, with upper body fat accumulation and subcutaneous fat depletion, compared to healthy persons of similar gender, age, weight, and height. Presenting author: donald kotler, st. luke's roosevelt hospital center, 421 west 113th street, new york, ny 10025, United States, Tel.: +1212-523-3670, Fax: +12125233678, E-mail: dpkotler@ aol.com WePeB5998 Vitamin E levels increase with antiretroviral i i treatment without additional supplementation FJ. Vilar1, A.C. Stalford2, W. Taylor3, A. Shenkin3, B.K. Park2, M. Pirmohamed2. ' Department of Infectious Diseases & Tropical Medicine, North Manchester General Hospital, 16, Devonshire Road, Manchester, M21 8XB, United Kingdom; 2Department of Pharmacology and Therapeutics, The University of Liverpool, Liverpool, United Kingdom; 3 Department of Clinical Chemistry, The University of Liverpool, Liverpool, United Kingdom Background: Vitamin E deficiency is known to occur in HIV-positive adults, and may increase the rate of disease progression. Vitamin E decreases HIV replication in cell culture. Supplementation with vitamins E and C in HIV positive patients may lower HIV viral loads, although this needs further study. The effect of highly active antiretroviral treatment (HAART) on vitamin E levels has not been studied. Methods: We recruited 33 symptomatic HIV patients due to start on HAART. The levels of vitamins A and E, interleukin 6 and TNF-alpha soluble receptor II were measured before and 6 weeks after starting treatment. Seventeen HIV negative controls were also sampled 6 weeks apart. Those patients who were taking or had taken multivitamins (or modified doses) during the previous 6 months were excluded. Acute illness was also an exclusion criterion. Results: Patients had a significant difference in vitamin E levels before and 6 weeks after starting HAART [median difference -7 (95% CI -10 to -3), p=0.002]. There was no difference in vitamin E levels in the control group between the two time-points (95% CI -3 to 6, p=0.6), and vitamin E levels at 6 weeks were similar in controls and patients (95% CI -2 to 6, p=0.39). There was a significant difference between patients and controls at week 0 [median difference -6 (95% CI -10 to -2), p=0.007]. There was no difference in vitamin A levels in both patients and controls at both time-points. TNF soluble receptor II, but not IL-6, levels showed a significant difference before and after starting HAART (p=0.025), while there was no difference in controls between the two time-points. Conclusions: Vitamin E levels improve after starting HAART, and thus although supplementation with vitamin E might be an interesting approach in countries were HAART is unaffordable, its supplementation does not seem to be necessary with HAART. Whether micronutrient supplementation reduces long-term complications of HAART remains unknown. Presenting author: F Javier Vilar, 16, Devonshire Road, Manchester, M21 8XB, United Kingdom, Tel.: +441617202734, Fax: +441617202732, E-mail: [email protected] WePeB5999 The availability of the UNAIDs recommended conditions for the safe practice of formula feeding and actual mothers' infant feeding practices in Botswana B. Mdumal, M. Phegelo 1, K. Mompati 1,0 O. Ntshebe 1, J. Sibiya 1, L. Gabaitsewe1, T. Baile 1, Pr Mazhani1', C. Luo2, NC. Rollins3, FJ. Willumsen3 S. Kleintjes2. 'IFood and Nutrition Unit, MOH, Food and Nutrition Unit, Family Health Division, MOH, PD. Box 992, Gaborone, Botswana; 2UNICEF Gaborone, Botswana; 3University of Natal, Durban, South Africa Background:. The UNAIDs guidelines for artificial feeding of infants of HIVinfected mothers recommend artificial feeding when in addition to un-interrupted formula supply for at least six months, there is access to safe drinking water and means to boil water for preparing formula and sterilizing utensils. An assessment of the availability of these UNAIDs conditions was conducted in Botswana in July 2001. Objectives: To describe the availability of conditions to practise safe formula feeding and suggest ways to improve the feeding practice support in the Prevention of Mother to Child Transmission (PMTCT) programme. Methods: A semistructured pre-tested questionnaire was administered to HIV infected mothers (78 urban and 80 rural) of infants aged 0-6 months with written consent, to participate in the study in four PMTCT districts. Factors that might contribute to unsafe formula feeds preparation namely frequency of preparation, storage of feeds and sterilization of utensils were elicited. Results: Safe water supply was universal, 55% inside house, 45% stand pipes in urban as compared to 37% and 64% respectively in rural sites. Some mothers (20% rural and 6% urban) lacked toilet facilities. Firewood was the main source of fuel in rural (81%) as compared to urban sites (27%). Majority (93% urban, 90.7% rural) used a feeding bottle; 65% urban and 60% rural cleaned the bottles with every feed with 67.0% sterilizing the bottles adequately. Prepared formula was stored at room temperature by 70% of urban and 40% of rural mothers. Maternal literacy rate was high, with 67% and 56% urban and rural respectively, having two years of secondary education. Conclusions: In Botswana, availability of the UNAIDS conditions for safe formula preparation is higher in urban than rural areas. The observed weaknesses in mothers' adherence to safe formula preparation should be addressed through intensified health workers and mothers' training. Presenting author: Benedicta Mduma, Food and Nutrition Unit, Family Health Division, MOH, P.O. Box 992, Gaborone, Botswana, Tel.: +267 353561, Fax: +267 302092, E-mail: [email protected] WePeB6000 Acupuncture cross-over trial: can acupuncture effectively control side-effects of HIV-combination therapy? EAS. Sommers, K.E.P Porter. AIDS Care Project, AIDS Care Project, 140 Clarendon St. 7th floor, Boston, MA, 02116, United States Background: The study examines whether acupuncture can minimize digestive side-effects of highly active antiretroviral therapy (HAART) and affect adherence to medication protocols. Methods: A 6-week cross-over clinical trial was designed to examine whether a set of 4 symptom-specific acupuncture points can be more effective than a set of 4 non-specific nearby comparison points in controlling digestive symptoms such as nausea, vomiting, and bowel upsets associated with use of HIV-combination

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Abstract Book Vol. 2 [International Conference on AIDS (14th: 2002: Barcelona, Spain)]
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International AIDS Society
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2002
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