PubMed Health⌕ Search

Biomedical subjects

T Pramanik

Publications and source records attributed to T Pramanik.

5 recordsLinked to original sources
PubMed2005

Alteration of blood pressure among the donors in a blood donation camp.

Anxiety can alter the cardiovascular parameters. In the present study, among the normotensive donors, the effect of anxiety on alteration of blood pressure and heart rate was assessed. Blood pressure and pulse rate were recorded in the volunteers just before blood donation and the results were compared with the blood pressure and heart rate recorded previously (one week before the camp) in the same population. There was a rise of both systolic and diastolic blood pressure with a significant increase in pulse rate just before blood donation. As the donors had previous experience of blood donation; the mental stress just before blood donation can be regarded as known stress -- which caused increase in norepinephrine secretion leading to peripheral vasoconstrictions and rise in diastolic blood pressure. Anxiety through sympathetic stimulation increased the heart rate, cardiac output and systolic blood pressure.

Adolescent↗
PubMed1999

Effect of thymectomy on serum gonadotrophins and testosterone concentration.

There is controversy about the relationship between thymic secretion and secretion of gonadotrophins and testosterone. One group of scientists reported that thymus is stimulatory to gonadotrophins and testosterone secretion, and according to other group thymic secretion is inhibitory to gonadotrophins and testosterone secretion. So we tried to observe what exactly happens to serum gonadotrophins and testosterone level following thymectomy. Thymectomy was performed in prepubertal animals and after 45 days of their operation serum gonadotrophins were measured by ELISA technique and serum testosterone was measured by RIA technique. The present study reveals a significant fall in serum FSH level along with significant rise in serum LH and testosterone level in male albino rats following thymectomy in comparison to that of sham thymectomized rats. It appears that thymus has an inhibitory influence on LH secreting gonadotrophs which has been withdrawn following thymectomy and as a result there occurs an increase in serum LH level. This LH stimulates interstitial cells of leydig and cause thereby an increase in serum testosterone level. The result also gives an indication that among the gonadotrophs in pituitary, one type is concerned with the secretion of LH while some gonadotrophs are concerned with secretion of FSH only; and the thymus possibly maintains the FSH secreting gonadotrophs intact at least till the age of puberty. Thymectomy may cause some disorganization of FSH secreting gonadotrophs which results in the fall in serum FSH level in thymectomized animals in comparison to that of sham thymectomized animal group.

Animals↗
PubMedDate not supplied

Physical fitness status among the students of a medical college in Kathmandu, Nepal.

The physical fitness of Nepalese students at a medical college in Kathmandu was measured. The proportions of students with poor fitness, average fitness, good fitness, very good fitness and excellent fitness were 10.4%, 23.6%, 39.6%, 17.9% and 8.5% respectively. No significant difference between the male and female students in physical fitness index score was noticed in any of the fitness level groups.

Adolescent↗