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5 result(s) for "Tohill, Beth C."
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Patterns of Body Composition Among HIV-Infected, Pregnant Malawians and the Effects of Famine Season
We describe change in weight, midupper arm circumference (MUAC), arm muscle area (AMA) and arm fat area (AFA) in 1130 pregnant HIV-infected women with CD4 counts > 200 as part of the BAN Study ( www.thebanstudy.org ), a randomized, controlled clinical trial to evaluate antiretroviral and nutrition interventions to reduce mother-to-child transmission of HIV during breast feeding. In a longitudinal analysis, we found a linear increase in weight with a mean rate of weight gain of 0.27 kgs/week, from baseline (12 to 30 weeks gestation) until the last follow-up visit (32–38 weeks). Analysis of weight gain showed that 17.1% of the intervals between visits resulted in a weight loss. In unadjusted models, MUAC and AMA increased and AFA declined during late pregnancy. Based on multivariable regression analysis, exposure to the famine season resulted in larger losses in AMA [−0.08, 95% CI −0.14, −0.02; p = 0.01] while AFA losses occurred irrespective of season [−0.55, 95%: −0.95, −0.14, p = 0.01]. CD4 was associated with AFA [0.21, 95% CI 0.01, 0.41, p = .04]. Age was positively associated with MUAC and AMA. Wealth was positively associated with MUAC, AFA, and weight. While patterns of anthropometric measures among HIV-infected, pregnant women were found to be similar to those reported for uninfected women in sub-Saharan Africa, effects of the famine season among undernourished, Malawian women are of concern. Strategies to optimize nutrition during pregnancy for these women appear warranted.
Vaginal flora morphotypic profiles and assessment of bacterial vaginosis in women at risk for HIV infection
Specific morphotypic profiles of normal and abnormal vaginal flora, including bacterial vaginosis (BV), were characterized. A prospective study of 350 women yielded concurrent Gram-stain data and clinical assessment (n=3455 visits). Microbiological profiles were constructed by Gram stain. Eight profile definitions were based on dichotomizing the levels of Lactobacillus, Gardnerella, and curved, Gram-negative bacillus (Mobiluncus) morphotypes. Of these, two were rare, and the other six demonstrated a graded association with the clinical components of BV. The proposed profiles from the Gram stain reflect the morphotypic categories describing vaginal flora that may enable clearer elucidation of gynecologic and obstetric outcomes in various populations.
Vaginal Flora Morphotypic Profiles and Assessment of BacterialVaginosis in Women at Risk for HIV Infection
Specific morphotypic profiles of normal and abnormal vaginal flora, including bacterial vaginosis (BV), were characterized. A prospective study of 350 women yielded concurrent Gram‐stain data and clinical assessment (n = 3455 visits). Microbiological profiles were constructed by Gram stain. Eight profile definitions were based on dichotomizing the levels of Lactobacillus , Gardnerella , and curved, Gram‐negative bacillus ( Mobiluncus ) morphotypes. Of these, two were rare, and the other six demonstrated a graded association with the clinical components of BV. The proposed profiles from the Gram stain reflect the morphotypic categories describing vaginal flora that may enable clearer elucidation of gynecologic and obstetric outcomes in various populations.
What Can Intervention Studies Tell Us about the Relationship between Fruit and Vegetable Consumption and Weight Management?
Given the recent surge in obesity, effective dietary strategies for weight management are required. Because fruits and vegetables are high in water and fiber, incorporating them in the diet can reduce energy density, promote satiety, and decrease energy intake. Although few interventions have specifically addressed fruit and vegetable consumption, evidence suggests that coupling advice to increase intake of these foods with advice to decrease energy intake is a particularly effective strategy for weight management. This approach may facilitate weight loss because it emphasizes positive messages rather than negative, restrictive messages
What epidemiologic studies tell us about the relationship between fruit and vegetable consumption and body weight
Clinical evidence shows that combining advice to increase fruit and vegetable consumption with caloric restriction is an effective strategy for weight management. The purpose of this review is to evaluate epidemiologic evidence to determine whether it supports an association between fruit and/or vegetable consumption and body weight. Few studies have been designed to specifically address this issue, and those that are available vary in methodology and offer inconsistent results. We make recommendations on how to strengthen future studies so that the influence of fruit and vegetable consumption on body weight in free-living individuals is better understood.