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Biomedical subjects

S Prasad

Publications and source records attributed to S Prasad.

At least 271 records · Page 15Linked to original sources
PubMed1981

Effect of bladder distension on dosimetry in gynecological implants.

In order to quantitate the impact of bladder distension on implant position and on radiation dosage to various parts of the bladder, 24 patients with gynecological neoplasms underwent computed tomographic scanning of the pelvis following insertion of afterloading intracavitary applicators. Shifting of the applicators due to bladder distension was measured at and two inches above the level of the vaginal ovoids. By maintaining a residual vesical volume of 200-300 ml with contrast material, radiation exposure to a large part of the bladder was reduced significantly while only a minor displacement of the implant system was noted.

Adenocarcinoma↗
PubMed1981

A survey of leprosy deformities in a closed community.

Out of 1011 leprosy patients, 200 (20%) cases with permanent deformities were found in the Leprosy Control Unit, Raxaul (East Champaran), Bihar. The statistical data of selected patients and the types of various deformities are presented. The prevalence rate and incidence pattern of deformities reported by other workers are compared.

Adolescent↗
PubMed1979

Observation of cultured embryonic epithelial cells in side view.

Epithelial cells from the early chick embryo were explanted and grown on a strip of coverglass which was positioned in a culture chamber in such a way that the cells could be filmed in side view. Ruffling of the cells at the leading edge of the sheet (marginal cells) appeared similar to the ruffles at the leading lamella of fibroblasts. The ruffles of the sub-marginal cells showed different characteristics, being longer and not propagated successively as were the marginal ruffles. Superimposition of cells was always the result of the active movement of a non-yolky cytoplasmic process underneath a yolky process (i.e. underlapping). The non-yolky processes appeared to be strongly adherent to the substrate in comparison with the yolky processes, which were easily displaced. Active movement of cells or lamellae on the dorsal surface of the sheet was never observed. Preliminary ultrastructural evidence is presented which suggests that the strongly adherent non-yolky processes possess well-defined microfilament tracts associated with the ventral plasma membrane, while the poorly adherent processes do not possess such tracts.

Animals↗
PubMed1978

Effect of a conditioning method on general safety test in guinea pigs.

Prior to utilization for safety tests, one group of guinea pigs was selected after a 1-week conditioning period, on the basis of physical appearance and a 5% body weight gain. Those in a second group were selected shortly after being received, on the basis of their physical appearance. All guinea pigs were maintained under identical management conditions during the safety tests. The number of guinea pigs that gained weight from both groups were compared. The conditioning method used resulted in significant (p less than 0.001) increase in the number of guinea pigs that maintained or increased body weight during general safety tests.

Adaptation, Physiological↗
PubMed1976

Mesocoloplasty for sigmoid volvulus: a preliminary report.

A technique of mesocoloplasty for the prevention of recurrence of sigmoid volvulus is described. The manoeuvre is simple, and does not open the gut. It can be performed confidently by junior doctors undergoing surgical training and appears to be an eminently safe technique as a routine procedure in any emergency service.

Colon, Sigmoid↗
PubMed1976

Filariasis penis.

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Filariasis↗