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Biomedical subjects

P Gupta

Publications and source records attributed to P Gupta.

At least 397 records · Page 22Linked to original sources
PubMed1973

Ineffectiveness of an oral killed typhoid vaccine in a field trial.

A field trial was carried out with a vaccine containing 300x10(9) killed S. typhi (strain Ty58) per tablet. A total of 12 564 children aged 1-15 years were given 3 tablets of the vaccine or a placebo at the rate of one tablet on each of 3 consecutive days. The results indicated that the vaccine, in its present form and at this dosage, gives no protection.

Administration, Oral↗
PubMedDate not supplied

Possible involvement of lipid peroxidation in the inhibition of type I iodothyronine 5'-monodeiodinase activity by lead in chicken liver.

The possible involvement of lipid peroxidation (LPO) in the lead-induced inhibition of type I iodothyronine 5'-monodeiodinase activity (5'-D) has been worked out in chicken liver. Lead nitrate (1.5 mg per bird per day) for 30 days increased the lipid peroxidative process with a concomitant decrease in 5'-D activity in chicken liver. Also, a significant decrease in serum triiodothyronine (T3) concentration and an increase in serum thyroxine (T4) concentration were observed. The data suggest that lead-induced inhibition of type I 5'-D activity in chicken liver is mediated through the lipid peroxidative process.

Animals↗
PubMedDate not supplied

Role of ascorbic acid in cadmium-induced thyroid dysfunction and lipid peroxidation.

A study on the effects of ascorbic acid (AA) on heavy metal (cadmium)-induced thyroid dysfunction and lipid peroxidation (LPO) was carried out in Swiss male mice. The animals were administered with either cadmium (1.0 mg kg(-1) body wt.) alone or in combination with AA (1 mM) every day for 15 days. While cadmium treatment led to a decrease in the serum concentrations of thyroid hormones and hepatic type I iodothyronine 5'-monodeiodinase (5'D-I) activity, an increase in the level of lipid peroxidation was observed. The metal-induced decrease in hepatic 5'D-I activity and serum triiodothyronine (T3) concentration was restored by treatment with AA. However, AA could not restore the serum thyroxine (T4) concentration. The increased level of LPO was also ameliorated by AA. It appears that the protective effect of AA against cadmium-induced thyroid dysfunction is mediated through its antioxidative action.

Animals↗
PubMedDate not supplied

Neonatal empyema thoracis.

Empyema thoracis, a serious complication of pneumonia, fortunately remains a less common cause of respiratory distress in neonates. Only 14 cases of neonatal empyema thoracis have been described in the world literature. The condition is characterized by its rarity, inability to identify any consistent predisposing factors, uncertain pathogenesis, rapid course, lack of consensus on management and a high mortality. We describe here two cases of empyema aged 6 and 8 days caused by E. Coli and Klebsiella respectively. Out of them one survived. A brief review of literature follows the above account.

Empyema, Pleural↗
PubMedDate not supplied

Clinical profile of klebsiella septicemia in neonates.

A detailed clinical study of 51 consecutive cases of neonatal klebsiella septicemia was carried out prospectively over a 20 months period. The incidence was 6.27 per 1000 live births. Majority (85.5%) were either preterms or small for date. Almost fifty percent babies had associated perinatal risk factors. Mean age of onset was 5.7 +/- 2.2 days. General symptoms were the earliest to occur at mean age of 5.7 days followed by respiratory, alimentary, hematological and neurological symptoms at 6.2, 6.3, 6.6 and 7.9 days respectively. About half of the neonates had associated complications; commoner being meningitis (20%), bleeding manifestations and sclerema (17.6% each) and pneumonia (15.7%). Cefatoxime was found to be the drug of choice (86% sensitivity). Nine babies (17.6%) died during the study period at a mean age of 9.1 +/- 3.2 days. Mean duration of hospital stay in rest of neonates was 27.9 +/- 12.1 days. Neurological symptoms were commoner in late onset disease. Bleeding manifestations, sclerema and granulocytopenia were seen exclusively in preterms. Presence of respiratory symptoms, bleeding, sclerema, shock and granulocytopenia were identified as poor prognostic factors in neonatal klebsiella septicemia.

Bacteremia↗