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Biomedical subjects

I Pande

Publications and source records attributed to I Pande.

27 records · Page 2Linked to original sources

Platelets in essential hypertension.

The ultrastructure and adenosine diphosphate induced aggregatory response of platelets of 39 patients with essential hypertension have been studied. Both, transmission and scanning electron microscopy showed the co-existence of various morphological forms of platelets suggestive of activation. The hypertensive platelets also exhibited increased sensitivity to ADP induced aggregation confirming the activated state of platelets; the degree of activation correlated well with the levels of diastolic blood pressure.

Adenosine Diphosphate↗

Prevalence of rheumatoid arthritis in the adult Indian population.

The prevalence of rheumatoid arthritis was studied in the adult Indian population. As the first step, a house-to-house survey of a rural population near Delhi was conducted by two trained health workers. The target population comprised 44,551 adults (over 16 years old). The health workers identified the possible cases of rheumatoid arthritis (RA) using a questionnaire. These cases were then further evaluated by the authors using the 1987 revised ARA criteria for the diagnosis of RA. A response rate of 89.5% was obtained and 3393 persons were listed as possible cases of RA by the health workers. Of these, 299 satisfied the revised ARA criteria for the diagnosis of RA, giving a prevalence of 0.75%. Projected to the whole population, this would give a total of about seven million patients in India. The prevalence of RA in India is quite similar to that reported from the developed countries. It is higher than that reported from China, Indonesia, Philippines and rural Africa. These findings are in keeping with the fact that the north Indian population is genetically closer to the Caucasians than to other ethnic groups.

Adolescent↗

Platelet ultrastructural morphology and its relevance in essential hypertension.

A preliminary study of platelet ultrastructural morphology by transmission electron microscopy in patients with established essential hypertension was carried out. Platelets of hypertensive patients were found to be in various stages of 'platelet activation'. According to the degree of transformation observed, platelets were classified into six forms: discoid, pseudotubular, membranous, saccular, pseudopodical and hyaline and correlated to the severity of hypertension. The pseudopodical and hyaline types platelets were particularly observed in severely hypertensive patients, and/or those with clinical evidence of target organ damage. Platelet ultrastructural changes may form the basis of a better understanding of the aetiology and pathogenesis of essential hypertension, and may serve as a marker in assessing the extent of underlying in vivo endothelial injury and tendency to thrombotic complications.

Aged↗

Analysis of clinical and laboratory profile in Indian childhood systemic lupus erythematosus and its comparison with SLE in adults.

Data on the clinical and laboratory profiles of 83 children with SLE have been analysed and compared with data on 187 adults with the disease. The clinical features of childhood SLE are similar to those seen in adults, although clinical and laboratory parameters reflect propensity to a more severe form of the disease in the juvenile age group. However, in comparison to descriptions of childhood lupus from developed countries, in India the female-to-male ratio in this age group parallels that in adults. Renal involvement is noted to be more common, whereas gastro-intestinal and haematological abnormalities are less common. Interestingly, leucopenia, lymphopenia and nephritic type of renal involvement are commonly seen in boys with SLE, but these features are non-existent in men.

Adolescent↗

Major histocompatibility complex genes and susceptibility to systemic lupus erythematosus in northern India.

Fifty-eight patients with systemic lupus erythematosus (SLE) from Northern India were tissue typed for HLA class I and II antigens. The results revealed an appreciable increase of HLA-DR4 (37.5%) among patients compared with controls (17.9%), P < 0.03. Additionally, haplotype B8-DR3 was encountered frequently in the patient group. The findings suggest an important role of MHC genes in influencing susceptibility to SLE.

Adolescent↗

Acquired immunodeficiency syndrome (AIDS) in multitransfused children with thalassemia.

Two hundred and three multi-transfused children with thalassemia attending the Thalassemia Clinic of the Charak Palika Hospital, New Delhi were screened for human immunodeficiency virus (HIV) antibodies by ELISA and all positive cases were confirmed by Western Blot. Of the 203 children screened, 18 (8.9%) were HIV positive, and in these children a detailed immunological work up was done and compared to 18 age-matched HIV negative thalassemics as controls. The tests included absolute lymphocyte counts (ALC), absolute and percentages of CD4+ and CD8+ cells and their ratios (CD4/CD8), immunoglobulin levels (IgG, IgM and IgA) and delayed cutaneous hypersensitivity (DCH) test by Multitest CMI in all the cases and the controls. Of the 18 HIV positive children, 6 were diagnosed to have clinical AIDS as per the WHO criteria. After immunological testing, the children were further classified according to the CDC criteria. By these criteria, 11 children were classified as P1 A (asymptomatic infection, normal immune function), 1 child as P1 B (asymptomatic infection, abnormal immune function), 2 children as P2 A (symptomatic infection with non-specific findings), 1 child as P2 C (lymphocytic interstitial pneumonitis), 1 child as P2 D1 (Pneumocystis carinii pneumonia) and 2 children as P2 D2 (symptomatic infection with infections). In this paper, the clinical features of the children with AIDS is described, and the immunologic functions of these children are compared with the HIV positive asymptomatic children and with controls. These are the first cases of AIDS in the pediatric age group from India.

Acquired Immunodeficiency Syndrome↗