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3.
Am J Clin Nutr ; 42(3): 531-41, 1985 Sep.
Article in English | MEDLINE | ID: mdl-4036851

ABSTRACT

This study was conducted to obtain an accurate assessment of the nutritional status of the children in the Cusco, Peru Health District. It is a sample survey of anthropometric measures for 3,383 children under the age of 10 yr. The results showed a significant decline in nutritional status with age (96.88% normal range at ages 1-3 mo to only 37.43% normal at ages 12-24 mo) followed by a gradual improvement in the children above 2 yr (approximately 50% normal). The deficits at the older ages were principally due to low weights-for-age. Nutritional status was also dependent on sex, village altitude, remoteness, and population size (p less than 0.005). Of these, only sex interacted with age. The girls did significantly better at some ages and the boys better, but not significantly so, at other ages.


Subject(s)
Health Status , Health , Nutrition Surveys , Age Factors , Anthropometry , Body Weight , Child, Preschool , Female , Humans , Infant , Male , Peru , Sex Factors , Socioeconomic Factors
5.
Transfusion ; 18(5): 524-9, 1978.
Article in English | MEDLINE | ID: mdl-30191

ABSTRACT

The effect of phosphate buffer on the course of pH, ATP, and 2,3-PDG of CPD red blood cells stored at three temperatures was observed. Basic phosphate at an equilibrated level of 10 mM (as iP) maintained pH above 7.00 and ATP and 2,3-DPG above 70 per cent of initial value in cells stored at 37 C for 24 hours. In contrast however, at 25 and 4 C no buffering was obtained with basic phosphate concentrations up to 50 mM, but values for both ATP and 2,3-DPG were higher in phosphate treated aliquots than in controls throughout storage. When the pH of blood stored at 4 C was adjusted into the range 7.15 to 7.25 with tromethamine and the level of iP raised to 10 mM by addition of Na2HPO4 on day seven, it was found that ATP and 2,3-DPG levels were maintained at 90 and 120 per cent, while control levels fell to 60 and 12 per cent, respectively at 21 days. The process described parallels the normal repair of damaged red blood cells of bank blood that occurs in vivo following transfusion.


Subject(s)
Blood Banks , Blood Preservation , Citrates/pharmacology , Sugar Phosphates/pharmacology , Adenosine Diphosphate/blood , Diphosphoglyceric Acids/blood , Glucose/pharmacology , Humans , Hydrogen-Ion Concentration , Phosphates/blood , Phosphates/pharmacology , Sodium Chloride/pharmacology , Time Factors
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