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Evaluation of nutritional status by immunologic assessment in bulimia nervosa: Influence of body mass index and vomiting episodes

AuthorsMarcos, Ascensión ; Varela, Pilar; Toro, Olga; Nova, Esther ; López-Vidriero, Irene; Morandé, Gonzalo
KeywordsNutritional status
Natural killer cells
Bulimia nervosa
Low weight
Issue Date1997
PublisherAmerican Society for Nutrition
CitationAmerican Journal of Clinical Nutrition 66: 491S- 497S (1997)
AbstractThe nutritional status of 21 patients suffering from bulimia nervosa was evaluated by anthropometric and immunologic indexes in comparison with a control group (n = 15). In addition, the influence of body mass index (BMI; in kg/m2) values and vomiting episodes on the nutritional status of bulimic patients was assessed. Anthropometry showed no signs of malnutrition in either group, except for those patients with low weights (BMI < 19). Bulimic patients had lower lymphocyte counts than did control subjects, except for those without vomiting (NVBN). All T lymphocyte subsets tested as well as CD57 cells were lower (22% and 55%, respectively) in bulimic patients than in control subjects, but the CD19 cell subset remained unmodified. The low- weight bulimic group (LWBN) had lower CD4 cell counts than did the normal- weight (BMI > 19) bulimic group. The NVBN group had lymphocyte subpopulations similar to those in the control group, except for CD57, which was lower. The bulimic patients with vomiting had the lowest cell subset values. These results suggest a depleted nutritional status in all bulimic patients studied, even those with normal weights. The LWBN group had the most depleted nutritional status and the NVBN group was least affected at a subclinical level. CD57 can be considered a good marker of nutritional status in this syndrome because it was the only subpopulation altered in all groups.
Identifiersissn: 0002-9165
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