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Biomedical subjects

B N Tandon

Publications and source records attributed to B N Tandon.

At least 163 records · Page 9Linked to original sources

Vitamin A nutritional status of rural community of Khol block in Haryana, North India. A collaborative study.

A nutritional and diet survey was carried out in 2,192 persons belonging to all age groups in a rural community. Vitamin A consumption was less than the recommended daily allowance in persons of all age groups. Bitot's spots and night blindness were detected in 7.1% and 7.2% of the population, respectively. Ocular signs of vitamin A deficiency were more frequently observed in age groups above 5 years as compared to the preschool children. There was no association of vitamin A deficiency with different grades of protein-calorie malnutrition in preschool children. Kerătomalacia was extremely rare and was observed only in one child. The study suggests that the rural area studied was a high prevalence zone for vitamin A deficiency which did not have its serious consequences due to relatively adequate protein-calorie nutritional status of the population.

Adolescent↗

Epidemic dropsy in New Delhi.

Forty-five cases of epidemic dropsy were studied from an epidemic in New Delhi. Argemone oil contamination was found in the mustard oil used for cooking. Sanguinarine was detected in the eight urine samples collected within 2-3 weeks of onset of dropsy and its concentration ranged from 0.4 to 3.6 mug/100 ml. Three of the 18 sera were positive for sanguinarine, the concentration being 1.2, 1.6 and 3.6 mug/100 ml. The clinical manifestations and epidemiological factors were studied. Edema of the legs was the most consistent clinical finding, and was present in all the patients. In contrast to the earlier epidemics, three striking features were pigmentation in 33%, hair loss in 77.7% and nontender hepatomegaly in 24.4% of cases. A follow-up of 10 months showed almost complete recovery in all.

Adolescent↗

Early recovery of exocrine pancreatic function in adult protein-calorie malnutrition.

Nine adult patients with protein-calorie malnutrition underwent a pancreozymin-secretin test of exocrine pancreatic function and then were treated with a high protein diet. Studies of pancreatic function were repeated at 2 weeks and again at 6 weeks following institution of a high protein diet. There was substantial recovery in exocrine pancreatic function after only 2 weeks of dietary therapy.

Adult↗

Significance of the gel diffusion precipitin test for invasive amoebiasis.

The double diffusion precipitinin test for amoebiasis, has been evaluated in invasive amoebiasis. It gave positive percentages of 91-3 and 90-0 in cases of amoebic liver abscess and amoebic dysentery. False positive rates of 8-0 per cent and 0-0 per cent were obtained in miscellaneous non-amoebic disorders and in apparently healthy subjects, respectively. Its comparison with the indirect haemagglutination test revealed it to be slightly less sensitive but more specific. The agar gel precipitinin test became positive whenever the indirect haemagglutination titres were 1:256 or more. The adsorption studies revealed that both tests detected different types of antibodies. The use of the gel diffusion test is recommended as a routine method for amoebiasis as it is simple to perform in areas where sophisticated laboratory methods are not available.

Adsorption↗