title: Energetic consequences of mild Giardia intestinalis infestation in Mexican children.
abstract: This study explored the effects of mild infestation with Giardia on energy intake and expenditure at rest and in activity in an urban Mexican population. Ten boys aged 6-10 y living in low-income sectors in northwest Mexico who had Giardia infestation were recruited. Energy intake, basal metabolic rate (BMR), and total free-living expenditure (TEE) measured by the doubly labeled water method were determined for 7 d during both infestation and after treatment. There was no significant difference in recorded energy intake between the two periods (7.76 and 7.70 MJ/d; P = 0.847). BMR showed no significant change in response to treatment; values were 4.79 and 4.86 MJ/d (P = 0.03). The mean TEE increased by almost 1 MJ/d in the Giardia-free period. This increase was observed in 8 of the 10 subjects; however, the overall change was not statistically significant (P = 0.08).
authors.affiliation: Centro de Investigación en Alimentación y Desarrollo AC, Hermosillo, Sonora, Mexico.
authors.forename: M E
authors.initials: ME
authors.lastname: Valencia
authors.forename: G
authors.initials: G
authors.lastname: McNeill
authors.forename: P
authors.initials: P
authors.lastname: Haggarty
authors.forename: S Y
authors.initials: SY
authors.lastname: Moya
authors.forename: A
authors.initials: A
authors.lastname: Pinelli
authors.forename: L
authors.initials: L
authors.lastname: Quihui
authors.forename: R
authors.initials: R
authors.lastname: Davalos
mesh_terms: D000818:Animals; D001481:Basal Metabolism / Q000502:physiology; D001823:Body Composition / Q000502:physiology; D002648:Child; D002149:Energy Intake; D004734:Energy Metabolism / Q000502:physiology*; D016829:Giardia lamblia / Q000502:physiology*; D005873:Giardiasis / Q000453:epidemiology / Q000378:metabolism*; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D005082:Physical Exertion / Q000502:physiology; D011204:Poverty Areas; D014505:Urban Population