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Biomedical subjects

A Gupta

Publications and source records attributed to A Gupta.

At least 1,099 records · Page 61Linked to original sources
PubMedDate not supplied

Anti-implantation activity of some indigenous plants in rats.

Various extracts of one hundred and eight medicinal plants were screened for their anti-implantation activity in female albino rats. Out of these, 50% ethanolic extract of Codonospis ovata Benth (PL); 50% ethanolic, acetone and benzene extracts of Puararia tuberosa DC (TUB); aqueous and methanolic extracts of Punica granatum Linn. (PX) and ethanolic and acetone extracts of Rubus ellipiticus Smith (PX) inhibited pregnancy in 70-90% of rats. Similarly ethanolic extract of Adhatoda vasica Nees (LF) and Kigelia pinnata DC (PL); ethanolic and acetone extracts of Acrostichum aureum Linn. (PL), Juniperus communis Linn. (SD), Lepidium capitatum H.f. & T. (PL); ethanolic and benzene extracts of Citrulus colocynthus Schrad (LF) and acetone extract of Codonopsis ovata Benth (PL) showed 60-70% anti-implantation activity. Extracts of a few plants VIZ. Dolichos biflorus Linn. (SD), Ferule orientalis Linn. (PL), Nerium odoratum Lamk (RT), Randia dumetorum Lamk (SD) and Ruta graveolens Linn. (PL) could inhibit pregnancy in 50-60% of rats. The rest of the plants were either inactive or showed insignificant antifertility activity.

Animals↗
PubMedDate not supplied

Immunologic response of guinea pigs (Cavia porecellus) by treatment with antithymocyte serum, gamma-irradiation of gastrointestinal tract, lymphoid tissue and bone marrow.

The immunologic status of the guinea pigs was modified by treatment with antithymocyte serum (ATS): irradiation of gastrointestinal tract lymphoid tissue (GALT) and bone marrow (BM) by gamma-rays. These animals were injected with homologous testes, kidney and heterologous sheep red blood cells respectively in complete Freund's adjuvant. Cell mediate immune response (CMI) and humoral immune response was studied after first, third, fifth and eighth week of allergization. CMI was completely suppressed in guinea pigs treated with ATS, whereas humoral response suppressed to a lesser extent. In GALT and BM irradiated guinea pigs, CMI develops normally. However, marked suppression in the production of antibody titre both against homologous testes, kidney and heterologous sheep red blood cells was observed. Thymic lymphocytes "T' are destroyed by antithymocyte serum which are the mediators of cell mediated immune response. Irradiation of GALT and BM suppresses humoral response thereby supports that these are populated by "B' lymphocytes.

Animals↗
PubMedDate not supplied

Agenesis of gallbladder with choledochal cyst--an unusual combination.

A case of agenesis of gallbladder associated with Type IVa congenital choledochal cyst is reported. This combination is very rare and a review of literature revealed only three such cases. A brief discussion of gall bladder agenesis with particular reference to associated anomalies is presented. Difficulty in the management of Type IVa choledochal cyst where the extrahepatic and intrahepatic cysts are continuous at the porta, is highlighted.

Adult↗
PubMedDate not supplied

Wegener's vasculitis: diagnostic and therapeutic problems.

A case of Wegener's granulomatosis (WG) presenting with pulmonary manifestation which were initially suspected to be due to tuberculosis is being reported. Renal involvement appeared later. He developed complications of antitubercular treatment and of immunosuppression. The difficulties in distinguishing pulmonary manifestation of WG from tuberculosis and other diagnostic and therapeutic problems are discussed.

Antitubercular Agents↗
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Diagnostic methods for tuberculosis.

Tuberculosis (TB) is a major public health problem especially in the third world countries. In India, it is estimated that at present there may be approximately 10 million persons suffering from radiologically evident pulmonary TB of whom about 2.5 million would be sputum positive. The number of deaths due to tuberculosis is estimated to be approximately 5,000,000 every year. Definitive diagnosis of tuberculosis depends on smear examination and culture of appropriate biological fluids. Only up to 50% of pulmonary and 25% of extrapulmonary TB are diagnosed by smear examination. Traditional culture methods take around 6 weeks before the diagnosis can be established. Chemotherapy for tuberculosis is prolonged, expensive and not free from serious side effects. If the diagnosis of TB is delayed, it leads to increases morbidity and in some cases mortality (e.g. tuberculous meningitis). Often the clinicians have to start therapy empirically. There is a great need, therefore, for tests which are highly sensitive and specific as well as rapid.

Humans↗
PubMedDate not supplied

Lack of peripheral analgesic effect of low-dose morphine during intravenous regional anesthesia.

OBJECTIVE: To determine whether 1 mg morphine injected intravenously in conjunction with prilocaine has any effect on postoperative pain and analgesic requirement during intravenous regional anesthesia. METHODS: This was a randomized, double-blind study that included 37 patients undergoing carpal tunnel operations of the hand under intravenous regional anesthesia. Either 1 ml of morphine or 1 ml of physiologic saline diluted to 5 ml with 5% glucose was injected into the isolated exsanguinated arm. This was followed by 3 mg/kg of 0.5% prilocaine (total volume, 30-50 ml). Pain was assessed at 30, 60, 90, and 120 minutes, and 8, 24, and 48 hours after the end of the operation using a linear visual analog scale (VAS). The total number of analgesic tablets consumed in the first 48 hours were also counted. RESULTS: No difference was found in the VAS pain scores between the groups at any of the time periods studied. The postoperative analgesic requirement was similar in both groups. CONCLUSION: The authors conclude that 1 mg morphine showed no effect on postoperative pain or analgesic requirements when given in conjunction with prilocaine during intravenous regional anesthesia.

Adult↗
PubMedDate not supplied

Osteoporosis in India--the nutritional hypothesis.

Osteoporosis, a silently progressing metabolic bone disease that leads to loss of bone mass, is widely prevalent in India and osteoporotic fractures are a common cause of morbidity and mortality in adult Indian men and women. This review of the international patterns of osteoporosis reveals two distinctive clinical features of this disease in Indians. Firstly, hip fractures occur at a relatively earlier age in Indian males and females, compared to their western counterparts; and secondly, a higher male-to-female ratio suggests that Indian males are at a higher risk for hip fractures. The reasons for these differences are not known. It is possible that a dietary deficiency of calcium, beginning early in life, leads to a lower peak bone mass, and consequently osteoporosis at an earlier age. Furthermore, malabsorption of calcium due to a subclinical deficiency of vitamin D may lead to osteoporosis, without causing osteomalacia. With the increase in life expectancy, osteoporosis has become a formidable public health problem in India and a multidisciplinary approach is needed to identify its aetiological factors and devise strategies for mass prevention of calcium and vitamin D deficiency (possibly by fortification of food with these nutrients). Another issue that needs to be addressed is the social dogma against hormone replacement therapy in postmenopausal women. These measures, coupled with health education of the masses, should help promote bone health and control osteoporosis in India.

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