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  • Title: A lipid-based nutrient supplement mitigates weight loss among HIV-infected women in a factorial randomized trial to prevent mother-to-child transmission during exclusive breastfeeding.
    Author: Kayira D, Bentley ME, Wiener J, Mkhomawanthu C, King CC, Chitsulo P, Chigwenembe M, Ellington S, Hosseinipour MC, Kourtis AP, Chasela C, Tembo M, Tohill B, Piwoz EG, Jamieson DJ, van der Horst C, Adair L, BAN Study Team.
    Journal: Am J Clin Nutr; 2012 Mar; 95(3):759-65. PubMed ID: 22258269.
    Abstract:
    BACKGROUND: Breastfeeding increases metabolic demands on the mother, and excessive postnatal weight loss increases maternal mortality. OBJECTIVE: We evaluated the efficacy of a lipid-based nutrient supplement (LNS) for prevention of excess weight loss in breastfeeding, HIV-infected women. DESIGN: The BAN (Breastfeeding, Antiretrovirals, and Nutrition) Study was a randomized controlled trial in Lilongwe, Malawi. At delivery, HIV-infected mothers and their infants were randomly assigned according to a 2-arm (with and without LNS) by 3-arm (maternal triple-antiretroviral prophylaxis, infant-nevirapine prophylaxis, or neither) factorial design. The 28-wk LNS intervention provided daily energy (700 kcal), protein (20 g), and micronutrients (except for vitamin A) to meet lactation needs. Women were counseled to breastfeed exclusively for 24 wk and to wean by 28 wk. Weight change (0-28 wk) was tested in an intent-to-treat analysis by using 2-factor ANOVA and with longitudinal mixed-effects models. RESULTS: At delivery, the LNS (n = 1184) and control (n = 1185) groups had similar mean weights and BMIs. Women receiving the LNS had less 0-28-wk weight loss (-1.97 compared with -2.56 kg, P = 0.003). This difference remained significant after adjustment for maternal antiretroviral drug therapy and baseline BMI. Women receiving antiretroviral drugs had more weight loss than did those not receiving antiretroviral drugs (-2.93 compared with -1.90 kg, P < 0.001). The benefit of the LNS for reducing weight loss was observed both in those receiving antiretroviral drugs (-2.56 compared with -3.32 kg, P = 0.019) and in those not receiving antiretroviral drugs (-1.63 compared with -2.16 kg, P = 0.034). CONCLUSIONS: The LNS reduced weight loss among HIV-infected, breastfeeding women, both in those taking maternal antiretroviral prophylaxis to prevent postnatal HIV transmission and in those not receiving antiretroviral prophylaxis. Provision of an LNS may benefit HIV-infected, breastfeeding women in resource-limited settings. This trial was registered at clinicaltrials.gov as NCT00164762.
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