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Biomedical subjects

V Jagadeesan

Publications and source records attributed to V Jagadeesan.

26 records · Page 2Linked to original sources

Immune studies in oral contraceptive users.

Some of the parameters of immune status-percentage of B and T lymphocyte subpopulation, PHA-induced lymphocyte transformation measured by 3H-thymidine incorporation (PILT) and levels of total haemolytic complement (CH5O) were studied in Indian women from low income group who were using estrogen-progestogen combination pills. There were no differences in percentage of B and T lymphocyte subpopulation or PILT between OC users and the control group. However, CH5O levels were significantly lower in OC users. The depression in circulating complement levels in OC users is intriguing and suggests the possibility that complement system and circulating immune complexes may be altered in OC users.

Adult↗

Interrelationship between vitamins E and A: a clinical study.

Plasma vitamin A and vitamin E levels were determined in 45 children. Seven normal children and 7 children with vitamin A deficiency were given daily supplements of 100 mg vitamin E for two weeks. Seven others received a placebo and served as controls. The mean levels of plasma vitamin E and A were 694 microgram/dl and 21 microgram/dl respectively. There was no correlation between plasma levels of the two vitamins. Administration of vitamin E resulted in a significant increase in plasma vitamin A concentration both in normal children and in those with vitamin A deficiency, while there was no change in the control group.

Child↗

C3 in human milk.

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Complement C3↗

Antimicrobial factors in human milk.

Levels of immunoglobulins, lactoferrin and lysozyme were determined in milk samples obtained from well-nourished and under-nourished Indian women at different stages of lactation. The concentration of immunoglobulins and lactoferrin was higher in colostrum than in mature milk while the lysozyme levels showed a progressive increase with the period of lactation. There were no significant differences in the levels between the two groups of women. Administration of iron did not alter either the total or percentage saturation of lactoferrin in milk. These results indicate that antibacterial factors in milk are not influenced by the nutritional status of the mother and that iron supplementation does not interfere with the bacteriostatic function of lactoferrin.

Colostrum↗

Functional significance of growth retardation in malnutrition.

Various functional parameters involved in resistance to infection were investigated in children suffering from varying grades of protein-calorie malnutrition. It was observed that the phagocytic function was impaired in children whose weights were below 80% of the Indian Council of Medical Research standard, whereas the cell-mediated immune response was altered in those with weights below 70% of the standard. Antibody response to typhoid antigen was impaired in children with severe protein-calorie malnutrition, while the response to diphtheria and tetanus toxoids was normal in all. These observations suggest that malnourished children whose weights are below 80% of the Indian standard are likely to suffer from at least one functional handicap which may increase the risk of infection. In any action-oriented program, priority should, therefore, be given to this group of children.

Antibodies↗