The concentration of lead and cadmium in the seminal plasma of men in the general population, including fertile and infertile subjects, was measured. Semen samples were categorised as demonstrating oligospermia (sperm concentration < 20 x 10(6)/ml), asthenospermia (<50% motilesperm), oligoasthenospermia (a combination of the two criteria), and azoospermia (no sperm). An increase in lead and cadmium levels was observed in infertile men and there was a significant negative correlation of cadmium and lead semen concentration with sperm motility and sperm concentration in oligoasthenospermic men.

Adult↗

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Soft tissue release in clubfoot by double incision.

A procedure for soft tissue release through double incisions in clubfoot is described. It has been practiced in 287 cases of severe, neglected, resistant, and relapsed clubfeet in the last 7 years. Generally, it has been found to be a useful approach without risking any skin necrosis.

Clubfoot↗

PubMedDate not supplied

Separate pools of endonuclease activity are responsible for internucleosomal and high molecular mass DNA fragmentation during apoptosis.

The oligonucleosomal pattern of DNA fragmentation is the best-characterized biochemical marker of apoptosis and believed to be generated by a, as yet unidentified, Ca2+, Mg(2+)-dependent endonuclease. All apoptotic cells fragment their genome. However, not every cell type undergoing apoptosis is capable of internucleosomal DNA cleavage. We have analyzed the endonuclease activities and patterns of DNA fragmentation in four established cell lines undergoing apoptosis following serum deprivation, i.e., rat 5123tc hepatoma and PC12 pheochromocytoma, as well as human MCF7 breast and DU145 prostatic carcinoma cells. Whereas apoptotic 5123tc and PC12 cells degraded their DNA into oligonucleosomes, the MCF7 and DU145 cells generated only > 50 kilobase pairs (kbp) DNA fragments. However, when isolated nuclei from all four cell lines were incubated with both Ca2+ and Mg2+ ions, their DNA was cleaved into internucleosomal fragments. Following washing with a low ionic strength buffer, the nuclei could only degrade DNA to > 50-kbp fragments. DNA ladders were produced again in these washed nuclei after reconstitution with the nuclear wash, which contained an endonucleolytic activity of approximately 97 kilodaltons. These experiments showed that cells maintain separate pools of endonucleolytic activities responsible for the high and low molecular mass DNA fragmentation, and depending on the cell type, one or both enzymatic pools become activated during apoptosis.

Animals↗

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Degradation of constitutive transcription factors during apoptosis in rat thymocytes.

Dexamethasone (Dex) accelerates the rate of apoptosis in thymocytes by a process thought to require gene expression. Among the genes implicated in the regulation of this phenomenon are the immediate early genes such as c-fos and c-jun, whose expression is modulated by a complement of preexisting transcription factors. We have analyzed the DNA-binding activity of these constitutive transcription factors during Dex-induced apoptosis in thymocytes to assess their functionality. We observed a progressive loss of the DNA-binding proteins in parallel with the appearance of the characteristic morphological and biochemical features of apoptosis. At the same time we have found a general increase in the nuclear proteolytic activity concomitant with a significant loss of the nuclear nonhistone chromosomal proteins. Indeed, cotreatment of thymocytes with the nonspecific serine protease inhibitor phenylmethylsulphonyl fluoride was able to partially protect the stability of the DNA-binding proteins and alter the expression of the c-fos and c-jun genes but did not inhibit apoptosis. Our results suggest that the action of a protease(s) is responsible for the degradation of constitutive transcription factors during Dex-induced apoptosis, rendering the death pathway irreversible.

Animals↗

PubMedDate not supplied

Effect of vitamin "A" on free radical cascade in pregnancy induced hypertension.

The role of vitamin A therapy in pregnancy induced hypertension (P.I.H.) on free radical cascade was studied in P.I.H. patients of third trimester. It was found that vitamin A therapy causes statistically significant decrease in lipid peroxidation. However it has no effect on superoxide dismutase and catalase. This indicates that vitamin A acts as chain breaking antioxidant. The present study opens a future prospective of giving vitamin A for the prophylaxis of P.I.H.

Adult↗

PubMedDate not supplied

Significance of free radicals in chronic tonsillitis.

The present study was carried on adolescents suffering from chronic tonsillitis. Blood (pre and post tonsillectomy) as well as tonsil samples were evaluated for -MDA, SOD and Catalase. Our results showed a decrease in level of MDA and increase in SOD and Catalase levels post tonsillectomy. Presence of MDA and SOD in tonsillar tissue reinforce involvement of oxidative stress in pathophysiology of chronic tonsillitis.

Adolescent↗

PubMedDate not supplied

Helicobacter pylori infection in patients with perforated chronic duodenal ulcer.

Explore the source record for details and available documents.

Adult↗

PubMedDate not supplied

Hysterectomy: an analysis of perioperative and post operative complication.

OBJECTIVE: To document peri operative and post operative complication observed after hysterectomy, regardless of route on the operator. MATERIAL AND METHODS: A hospital based prospective study was carried out in department of obstetrics and gynaecology, KMCTH Sinamangal for six months. The study was carried out in patients undergoing hysterectomy who were followed from the time of admission to the time of discharge and two weeks thereafter. And followings were noted--Indication; route of hysterectomy, intraoperative and postoperative morbidities during hospital stay and after two weeks of discharge was noted. RESULT: Total number of hysterectomy carried out was 50. 31 (62%) were Total abdominal hysterectomy, and 19 (38%) were vaginal hysterectomy. Indication for total abdominal hysterectomy were fibroid uterus 12 (24%), DUB 8 (16%), CIN 4 (8%), chronic cervicitis 1 (2%). II U-V prolapse with previous LSCS 1 (2%), endometriosis 1 (2%). Prophylactic for Ca breast 1 (2%), Postmenopausal bleeding 1 (2%). All cases of vaginal hysterectomy were performed for 2nd degree U-V prolapse. Intra operative complication during surgery were two cases of haemorrhage (4%) each in both total abdominal hysterectomy and vaginal hysterectomy. There was one case of bladder injury during abdominal hysterectomy. Postoperative complication noted were febrile morbidity 1 (2%) in abdominal hysterectomy. Urinary tract infection remains the single most common febrile morbidity. There was one case of secondary haemorrhage in both type of hysterectomy. One was managed conservatively and other required laparotomy. There were three (6%) cases of wound infection in abdominal hysterectomy of two which were sanguineous discharge and one was frank pus which required secondary suture.

Adult↗