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PubMed1976

Plasma vitamin A levels--a diagnostic indicator of hepatitis in an institutionalized mentally retarded population.

Based on hepatitis-associated antigen carrier status as a model liver disease, level of vitamin A can be a useful diagnostic indicator in mentally retarded individuals. It was found that vitamin A levels and age were linearly related by the equation A = (B + CD), where A is the plasma vitamin A in mugms per 100 mls of plasma, B is the sex dependent constant of 25.9 for males and 28.4 for females, C is a sex dependent constant of 0.64 for males and 0.77 for females, and D is age in years. Above age 20, D becomes a constant with a value of 20. With this equation, if the observed vitamin A value is less than 79 percent of the predicted value, then liver damage should be suspected. This information presented graphically allows one to predict liver damage by observing the plasma vitamin A levels and then locating the point on the appropriate graph.

Adolescent↗
PubMed1992

Nutritional status of institutionalized elderly in south Florida.

To assess the nutritional status of an elderly nursing home population of South Florida, forty-seven persons with ages ranging from 65 to 96 years were studied. Complete clinical examination and anthropometric measures were performed, along with blood cell count, biochemical blood parameters and assessment of water-soluble vitamins levels. The most common clinical finding were edentulous (67%), general pallor (44%), hyperpigmentation (33%), dry skin (26%) and arcus corneitis (26%). Thirty-five percent of the studied population had cholesterol levels greater than 220 mg/dl. Triglyceride levels were also significantly elevated in a considerable subset of our subjects, with 30% having levels above threshold value of 150 mg/dl. Small proportions of subjects showed low levels of albumin (6%), total protein (28%), ascorbic acid (2%), and thiamin (9%). Forty-five percent of males were pyridoxine deficient, while 63% of the females presented such deficiency. This study underscores the need to define, with greater precision, the nutritional status of aged populations as well as improve our inadequate standards associated with the "normal" aging process. Nutritional intervention--only possible when appropriate standards are defined--can potentially serve not only to prevent the occurrence of significant morbidity and mortality, but can also be employed to enhance quality of life in the elderly individuals.

Aged↗