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S K Gupta

Publications and source records attributed to S K Gupta.

At least 865 records · Page 48Linked to original sources
PubMed1979

Morphology and histochemistry of ovarian changes in the field rat, Millardia meltada.

A study has been made of the morphological and histochemical changes of the ovary of the field rat, Millardia meltada during its oestrous cycle and pregnancy. The follicular growth and atresia, ovulation and formation of corpora lutea occur throughout the year except severe winter months (December and January). Fluctuations in the follicular development occur on different days of the oestrous cycle and pregnancy. The granulosa cells show a progressive increase in their size in successive stages of follicle growth. The granulosae of normal follicles show some sparsely scattered lipid bodies which consist of phospholipids. Theca interna cells during follicular growth develop diffuse lipoproteins and lipid droplets consisting of triglycerides, phospholipids and cholesterol and/or its esters. The luteal cells of corpora lutea are formed by the granulosa cells as the theca interna cells degenerate and disappear. The fibroblast-like cells of thecal origin, alongwith the blood vessels, invade the luteal cell mass. The luteal cells during metoestrus, dioestrus and first half of pregnancy show abundant diffuse lipoproteins and a few lipid droplets composed mainly of phospholipids and some triglycerides, which are indicative of active steroidogenesis. The details of degenerative histological and histochemical alterations of corpora lutea during oestrous cycle and pregnancy are also described and discussed. Morphological and histochemical changes of follicular atresia are described. The granulosa cells of atretic follicle degenerate and disappear leaving behind theca interna cells which form patches of interstitial gland cells during the reproductive activity of the present rat. Interstitial gland cells show diffusely distributed sudanophilic lipoproteins and lipid droplets consisting of triglycerides, cholesterol and/or its esters and some phospholipids, which are indicative of steroidogenesis. The functional significance of histological and histochemical changes, which occur in various components of the ovary during oestrous cycle and pregnancy, has been discussed.

Animals↗
PubMed1978

Osteopetrosis.

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Child↗
PubMed1978

Relationship of renal transplantation to hypertension in end-stage renal failure.

The relationship of renal transplantation to new onset or persistence of previously established hypertension was analyzed in 164 transplant recipients in whom the renal allograft functioned for six months or longer. Of the 164, thirty-seven (23%) had normal blood pressure and 127 (77%) were hypertensive prior to transplantation. Following transplantation 83 patients (51%) were normotensive; high blood pressure was found in 81 (49%). Posttransplant hypertension could not be correlated with the recipient's original renal disease, age, sex, renal donor source, donor age, or maintenance dose of prednisone. More normotensive paients had undergone prior binephrectomy when compared with the hypertensive group (P less than .05). Mean serum creatinine levels was higher (2.0 mg/dl) in hypertensives than in normotensives (1.54 mg/dl) (P greater than .05). Selective renal veins' renin measurements in patients with severe hypertension were not helpful in predicting the beneficial effects of either bilateral nephrectomy or surgical correction of transplant renal artery stenosis.

Adult↗
PubMed1978

Antibiotic X-63 in experimental candidiasis of mice.

X-63, a polyene antibiotic of heptaene series showed activity against experimental infection with Candida albicans in mice, by several routes. The oral, intraperitoneal and intravenous activities ranged between dosages of 3.1--50, 0.06--0.5 and 0.25--0.5 mg/kg, respectively. Seven days treatment by intraperitoneal route caused significant progressive reduction of colony-forming units in kidney homogenates of infected mice, which was comparable to amphotericin B. The regression of infection was further demonstrated histopathologically. In vitro, antibiotic X-63 was similar to nystatin against nine strains of Candida used. It also proved active against amphotericin B-resistant strains of C. albicans, C. tropicalis, C. pseudotropicalis, C. krusei, and C. parakrusei. The use of combined drug therapy in candidiasis has been discussed.

Amphotericin B↗
PubMed1978

Complete heart block complicating acute myocardial infarction.

Complete heart block (CHB) developed in 10.3% of patients with acute myocardial infarction (MI). It was more frequent among patients with inferior myocardial infarction compared to anterior myocardial infarction, but the mortality was significantly high among patients with anterior MI who developed CHB. A new classification into primary (P) and secondary (S) CHB is suggested by the sequence of events. The incidence and mortality of SCHB was significantly high when compared to the incidence and mortality of PCHB. Wide QRS complexes, a heart rate of less than 60/min, and syncopal attacks were the grave prognostic signs. Progression from a lesser degree of AV block and regression of CHB to a lesser degree of AV Block were both observed in 25.8% cases. Circulatory failure in the form of shock, hypotension, congestive heart failure, and left ventricular failure, alone or in combination was a factor in 17 of the 22 patients who died. Four of 5 patients who underwent transvenous pacing also died.

Acute Disease↗