The effects of hyperbaric oxygen (HBO) therapy on oxidant/antioxidant metabolism are controversial and its effects on hepatic regeneration are not known. In this study, we investigated a possible beneficial effect of HBO therapy on oxidant and antioxidants levels during liver regeneration. To conduct this study, seventy percent hepatectomy was performed on forty-eight SpraggueDawley rats and the rats were divided into two equal groups: HBO-treated group and untreated group (non-HBO group). We determined the levels of malondialdehyde (MDA), an oxidative stress marker, and the levels of antioxidant enzymes/reagents, including glutathione (GSH), superoxide dismutase (SOD) activitiy, copper (Cu) and zinc (Zn), in the remnant liver samples. We also measured mitotic index (MI) and proliferating cell nuclear antigen (PCNA) levels to assess the degree of liver regeneration. HBO treatment significantly decreased MDA levels, whereas it increased SOD activity, GSH and Zn levels. In contrast, Cu levels were lower in the HBO-treated livers than the levels in the untreated remnant livers. The effect of HBO treatment may be mediated by the suppression of certain enzymes that are responsible for lipid peroxidation. In addition, HBO treatment may induce the production of antioxidant enzymes/reagents by remnant liver tissues. The HBO-treated rats maintained their body weights but the untreated rats lost body weights. HBO treatment also increased MI and PCNA levels, indicating HBO treatment enhances liver regeneration. These

No abstract

Ectopic thyroid tissue can be seen anywhere along the path of the descending glands, but it is rarely seen in the abdominal cavity. An ectopic thyroid was encountered incidentally in the pancreas of a 50-year-old woman who underwent a bilateral truncal vagotomy and pyloroplasty for a duodenal ulcer. There were no signs or symptoms of a thyroid tumor.

In rats, pneumoperitoneum can't cause a more severe peritonitis but it does induce an increase in the rate of bacteremia within the early 6-h period of peritonitis.

The laparoscopic approach to ventral and incisional hernias is safe, feasible, and a good alternative to the open approach. Our results are comparable with those of other reports in the literature.

No abstract

Morgagni-Larrey hernia is a rare type of diaphragmatic hernia, the diagnosis of which is made incidentally by routine chest X-ray film. We describe a technique for the laparoscopic repair of Morgagni-Larrey hernia which was successfully performed in three adult patients; two women and one man. Two of the patients were asymptomatic and had herniation of only omentum into the right hemithorax; however, one was symptomatic and had herniation of the omentum and large bowel. Tension-free closure of the defects was done using Prolene mesh with a hernia stapler, helical fastener, and Endostitch. There were no early complications and the patients were discharged on the fourth postoperative day. The mean follow-up period was 41 months, and there has been no late morbidity or mortality related to this procedure. Using a laparoscopic approach to repair a Morgagni-Larrey hernia provides an excellent view of the surgical field and allows easy manipulation with minimal surgical trauma, followed by rapid recovery of the patient.

Age alone has no characteristic effect on the treatment of colorectal carcinoma.