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Biomedical subjects

M R Horner

Publications and source records attributed to M R Horner.

8 recordsLinked to original sources
PubMed1985

Lacteal zinc and copper in relation to volume, total ash and energy during the first three months of lactation of Brazilian women.

The concentrations of zinc and copper were longitudinally studied during the first three months of self-determined lactation periods of nine Brazilian women. Both elements were studied in relation to volume, energy and total ash of milk. During the six bi-weekly intervals, zinc showed a significant difference between the high initial value (as mass/volume), mass/g of ash and mass/kcal) and later values toward the end of the third month, but no significant difference was observed for copper. With respect to all three of those parameters, regression analysis of zinc against length of lactation (six bi-weekly intervals) showed a significant and inverse correlation. Only when expressed as mass/g of ash was copper significantly and directly correlated with length of lactation. The data indicate that zinc secretion into human milk occurs independently of copper and mineral mass and also follows a previously identified physiological pattern.

Brazil↗
PubMed1982

Hair zinc levels and nutritional status in urban children from Ilheus, Bahia, Brazil.

The mean +/-s.d. hair zinc levels of 45 pre-school and 70 school children, age 1-12 years, were 123 +/- 74 and 103 +/- 74 micrograms/g hair, respectively. The prevalence of zinc levels less than 70 micrograms/g 15 per cent (9 and 19 per cent for pre-school and school children, respectively). Anthropometric measurements showed that 25 per cent suffered from chronic malnutrition. The form of malnutrition manifested was exclusively stunting, ie, low height-for-age in the presence of adequate weight-for-height. No association was found between low hair zinc levels and nutritional status.

Age Factors↗
PubMed1981

Dietary analysis with programmable calculator: a simplified method.

The use and applications of programmable calculator in dietary analysis are presented. Results which approximate those of large computers can be obtained with considerably less time, money, and data manipulation. Program flexibility allows operators to determine the number of foods and nutrients to be analyzed. Input, data checking, and results of total nutrient consumption are achieved within minutes. The dietary analysis described in this article is well suited for small hospitals and clinics, for teaching purposes and dietary surveys and for use by non-nutritionists who have a one-time or regular need to incorporate dietary information into their work.

Computers↗
PubMed1981

[Diet survey based on family food consumption: the case of Ilheus, Bahia, in 1979].

A simplified method was used to analyze the diets of 31 poor families in the city of Ilhéus, Bahia, Brazil. The results are presented in terms of frequency of foods consumed, nutritional density and theoretical adequacy of the diet. Intrafamilial distribution of food intake was not considered in the analysis. Results show that the home diet was very limited in variety; only eight of the 46 items in the dietary frequency were consumed by 50% or more of the sample. Nutrient density was low for calcium, riboflavin, vitamin A and zinc. Energy density, as measured by the ratio of fat calories to protein calories (G/P) was 1.0, value considered nutritionally inadequate. Protein provided 16% of the energy and, of all nine nutrients analyzed, presented the highest levels of intake compared to recommended amounts. Theoretically, the groups at greater nutritional risk were women and children.

Adolescent↗