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Biomedical subjects

R M Gupta

Publications and source records attributed to R M Gupta.

At least 37 records · Page 2Linked to original sources
PubMed1983

Role of autoimmunity in retinitis pigmentosa.

Twenty-five cases of retinitis pigmentosa were investigated to assess the cell-mediated immunity and for evidence of autoimmunity by measuring peripheral blood T-cell rosette count, cutaneous DTH response to recall antigens (Candida and purified protein derivative [PPD]), and 2:4 dinitrochlorobenzene (DNCB) and antiretinal antibody by tanned red cell hemagglutination technique. It was observed that cell-mediated immunity was significantly depressed, and antiretinal antibody was found in 60% of the cases, which correlated with the duration and severity of the disease. We conclude that although retinitis pigmentosa is genetically determined, patients develop autoimmunity against retinal tissue due to suppression of cell-mediated immunity. Association of rheumatoid factor in 8% of the cases further confirms the loss of homeostatic control owing to suppressed cell-mediated immunity.

Antigen-Antibody Reactions↗
PubMed1980

Extramedullary plasmacytoma: simulating a soft tissue sarcoma of the chest wall.

Extramedullary plasmacytoma occurs infrequently as compared to osseous myoloma. A single case of extramedullary plasmacytoma was seen during the last 10 years whose initial presentation was that of a soft tissue sarcoma of the chest wall. Clinical data along with relevent investigation and treatment results are discussed with a review of the literature.

Biopsy↗
PubMed1979

Immunological evaluation of children undergoing tonsillectomy.

This study was carried out on 80 patients undergoing tonsillectomy for chronic tonsillitis. Twenty healthy school children in the same age group were investigated for control values. Ten children were also available for evaluation of any immunological change after tonsillectomy. No significant variation was seen in the serum IgG, IgA, and IgM levels before and after tonsillectomy. Peripheral absolute lymphocyte count was higher in the pre-operative cases as compared to the control group, and this count became near normal following tonsillectomy. Skin tests with recall antigens PPD and Candida and contact sensitizing agent 2:4 DNCB showed an improved cell mediated immune response following tonsillectomy.

Adolescent↗