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S P Thapar

Publications and source records attributed to S P Thapar.

11 recordsLinked to original sources

Pulmonary damage caused by fluoride in rabbits during experimental fluorosis.

The effect of fluoride on lung tissue was assessed in rabbits during experimental fluorosis. Sodium fluoride as 5, 10, 20 and 50 mg/kg body weight/day was injected subcutaneously for 100 days into rabbits of both sexes. The control animals were given 1 cc distilled water/kg body weight/day for the same period. Histological studies showed alveolar hemorrhage, necrosis of alveolar epithelium and bronchiolitis, followed by progressive exudation of oedema fluid, congestion, and hyperplasia of alveolar cell nuclei in treated animals. In animals of the 50 mg fluoride group, lung parenchyma had a distorted appearance with loss of alveolar architecture. The structural manifestations in pulmonary tissue were more progressive with the subsequent increase in the dosage of fluoride.

Animals↗

Metacarpal index.

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Adolescent↗

A survey of osteoporosis using the calcaneum as an index.

Two hundred radiographs of the calcaneum and 200 radiographs of the femoral neck from 100 persons were compared. A system of calcaneal grading, different from that earlier reported, was evolved which correlated significantly with the Singh Index. We found that resorption of secondary tensile and compressive trabeculae occurred before resorption of the primary trabeculae. Interruption of primary compressive trabeculae, which was previously described, is an inconstant feature. Our system using six grades is easier to correlate with the Singh Index. We found that osteoporosis increased progressively with age and was three times more common in females than males.

Adult↗

Identification of personal height from the somatometry of the hand in Punjabi males.

The present study is based on a sample of 100 normal healthy Punjabi males from Patiala, Punjab, India. Each subject has been studied for three anthropometric measurements: stature, hand length and hand breadth. The data have been subjected to statistical computation for the statistical constants like mean values, standard deviation, standard error of mean, test of significance (test of normal deviates) and regressions. The data have been studied for somatometry pertaining to height, hand length and hand breadth. Bilateral symmetry in both the measurements, hand length and hand breadth, indicate insignificant variations. Regression equations have been computed and regression lines have been drawn for the estimation of stature from somatometry of hand.

Adult↗