BackgroundOvarian torsion may cause serious complications such as infertility in young women. Conservative management includes detorsion and reperfusion of the twisted segment. However, it may have local and systemic consequences due to production of large amounts of reactive oxygen species during reperfusion of ovaries.
Aim of workThe present work aimed to study the possible histological and immunohistochemical changes due to ischemia-reperfusion injury in rat ovaries and the possible protective effect of vitamin C as an antioxidant.
Materials and methodsA total of 32 albino rats were divided into four groups. Group I was the control sham-operated group (either sham operated only, or with vitamin C administration). In group II rats, ovarian ischemia was induced by torsion of the right adnexa. In rats of group III, 4 h of ischemia followed by reperfusion was performed. In rats of group IV, 4 h of ischemia was followed by 50 mg/kg vitamin C administration, which was injected intravenously, and then reperfusion was performed. Except for the ischemia group, all other groups were subdivided into two subgroups from which the right ovaries were surgically removed either after 5 h or after 2 weeks of starting the experiment. From the ischemia group ovarian samples were taken after 5 h only. Specimens were processed for paraffin sections and stained with H&E and with an immunohistochemical stain for apoptotic marker p53. Image analysis and statistical analysis of the obtained results were carried out.
ResultsSevere vascular congestion, edema, hemorrhage, and increased P53 immunoreaction were detected in the ovaries after ischemia, which became less marked after reperfusion and considerably improved with vitamin C administration, especially after 2 weeks. Conclusion Vitamin C treatment can help in protecting the ovaries from ischemia-reperfusion injury after detorsion.
Background: Acute pancreatitis (AP) is a common inflammatory disorder of digestive system. Mesenchymal stem cells (MSCs) and Wheat germ oil (WGO) could improve AP through their anti-inflammatory and antioxidant effects. Objective: Evaluate and compare the possible therapeutic effects of Bone marrow derived Mesenchymal Stem Cells (BMSCs) versus WGO on AP. Materials and Methods: 47 adult male albino rats were divided into 4 groups. Control group I (no.=12). AP was induced in the remaining 35 rats by a single intra peritoneal (I.P) injection of L-arginine (250 mg/100g). 5 rats died within the 1st hour after AP induction, the rest were divided randomly into group II (AP group; no.=10) that received no treatment, group III (BMSCs group; no.=10) and group IV (WGO group; no.=10). One hour after AP induction, group III was injected I.P. by 1ml of PKH26 labeled BMSCs (1x106 cells/ml) and group IV received WGO in a dose of 3 ml/kg body weight by oral gavage every 24 h for 3 successive days. Blood samples were collected 24 hours and on the 4 th day after AP induction for biochemical assessment of serum amylase, lipase, interleukin-1β and interleukin-10. Then, animals were sacrificed and specimens from the pancreas were prepared for Hematoxylin and eosin (HandE) stain and immune-histochemical staining using inducible Nitric Oxide Synthase (iNOS) and insulin antibodies. Morphometric measurements using image analyzer were done. Results: Group II showed extensive pancreatic damage associated with increase in serum amylase, lipase and interleukin-1B levels and reduction in interleukin-10 level. A significant increase in the area % of iNOS immunostaining and non-significant change in insulin immunostaining were detected. On the other hand, BMSCs group and WGO group showed improvement in the biochemical, histological and immunohistochemical results with better results in BMSCs group. Conclusion: BMSCs possess better therapeutic efficacy in treating AP compared with WGO.
Introduction: Benign prostatic hyperplasia (BPH) is a common non-malignant overgrowth of human prostate in old age that greatly affects patient's quality of life. Finasteride, one of the routinely available regimens for BPH, caused several drawbacks. Recently a natural herbal product, ginseng, had shown a promising influence on various disorders through anti-proliferative, anti-inflammatory and other beneficial effects.
Aim of the Work:To compare the effect of panax ginseng versus finasteride on BPH. Together with evaluation of the spontaneous improvement of hyperplastic features. Materials and Methods: Fifty five adult albino rats were divided into 2 groups: control and experimental groups. BPH was induced by subcutaneous injection of testosterone (3 mg/kg/day) for 4 weeks. Then the animals were subdivided equally into 4 subgroups: BPH was sacrificed at end of 4th week, Recovery was left untreated for another 4 weeks, Finasteride & Ginseng treated subgroups received oral administration of finasteride (5 mg/kg/day) & ginseng (200 mg/kg/day) respectively for another 4 weeks. Serum DHT level and weight of prostate glands were measured. Prostatic sections were stained with toluidine blue, H&E, Masson trichrome and immunohistochemical stain for PCNA and α SMA. Additionally, the sections were subjected to morphometric and statistical analysis. Results: BPH subgroup showed signs of hyperplasia of both epithelial and stromal cells while minimal improvement was demonstrated in the recovery subgroup. Finasteride treated subgroup showed apparent incomplete restoration of normal prostatic histological structure. While nearly normal histological architecture, biochemical & morphometric parameters were recorded in ginseng treated subgroup. Conclusion: Ginseng proved to have a therapeutic effect superior to finasteride through its anti-mitotic, anti-inflammatory and anti-fibrotic effects. Discontinuation of testosterone administration resulted in inconsiderable regression of BPH.
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