共查询到20条相似文献，搜索用时 15 毫秒
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Yasar Ergun Ahmet Koc Yesim Akaydin Tunay Kontas Erdogan Aslan 《European journal of obstetrics, gynecology, and reproductive biology》2010,152(2):186-190
Objectives
The aim of this study was to investigate the effects of erythropoietin and dimethylsulfoxide in the recovery from ischemia-reperfusion injury in an experimental rat adnexal torsion model.Study design
Thirty-six Wistar-albino rats were divided into six groups. Except for the sham operation group, all groups were subjected to left unilateral adnexal torsion for 3 h. Erythropoietin and dimethylsulfoxide were intraperitoneally administered 30 min before the detorsion operation. Malondialdehyde and nitric oxide levels were detected from both the plasma and the tissue samples. The sections of the tissues were evaluated histologically. The results were analyzed by a one-way analysis of the variance (ANOVA) followed by the Duncan test for multiple comparisons using computer software, SPSS Version 15.0 for Windows.Results
This study demonstrated that dimethylsulfoxide and erythropoietin pretreatment attenuated ischemia-reperfusion-induced lipid peroxidation, prevented post-ischemic ovarian injury and helped to maintain the ovarian morphology. Malondialdehyde levels of plasma and ovary were higher in the torsion and detorsion groups than the sham group. This showed that ischemia-reperfusion had caused lipid peroxidation of the ovarian tissue, thus leading to oxidative damage. One of the major findings of this study is that malondialdehyde was significantly decreased in the plasma of rats who were pre-treated with dimethylsulfoxide and erythropoietin before detorsion. This suggests that dimethylsulfoxide and erythropoietin might prevent oxidative damage in ovarian ischemia-reperfusion injury. Histological examination confirmed that reperfusion caused more detrimental effects than only ischemia, which could be at least partially prevented by dimethylsulfoxide and erythropoietin administration prior to detorsion.Conclusion
Erythropoietin and dimethylsulfoxide may have beneficial effects in ischemia-reperfusion injury in ovarian torsion. 相似文献2.
Kara M Daglioglu YK Kuyucu Y Tuli A Tap O 《European journal of obstetrics, gynecology, and reproductive biology》2012,162(2):197-202
Objective
The aim of this study was to investigate the effect of edaravone on experimentally induced ovarian torsion/detorsion ischemia/reperfusion (I/R) injury.Study design
: Forty-six female adult Wistar-Albino rats were utilized to create five groups: In group 1, only 5 mg/kg edaravone was given and ovary torsion was not performed. In group 2, torsion was not performed and no drug was given. In group 3, vehicle was given and torsion/detorsion was performed. In group 4, 1 mg/kg edaravone was given and torsion/detorsion was performed. In group 5, edaravone; 5 mg/kg drug was administered and torsion/detorsion was performed. Right ovarian torsion was simulated for a 3-h period of ischemia and a 1-h reperfusion period. Right ovaries were then surgically extirpated in all groups. In ovarian tissue samples malondialdehyde (MDA) levels and activity of superoxide dismutase were studied. Microscopic ovarian tissue damage was scored by histologic and electron microscopic findings.Results
The MDA level in the group 5 was significantly lower than group 3 (p < 0.001). Superoxide dismutase activity in the group 5 was significantly higher than group 3 (p < 0.001). Histopathological ovarian tissue damage in the group 5 were significantly lower than group 3 (p < 0.001).Conclusion
These results indicate that edaravone could be an effective agent in the short-term treatment and prevention of ovarian ischemia and reperfusion damage. 相似文献3.
Güney M Nasir S Oral B Karahan N Mungan T 《Reproductive sciences (Thousand Oaks, Calif.)》2007,14(3):270-279
The objective of this study is to determine the effects of antioxidant and anti-inflammatory caffeic acid phenethyl ester (CAPE) on experimental endometriosis, peritoneal superoxide dismutase (SOD) and catalase (CAT) activities, and malondialdehyde (MDA) levels in the rat endometriosis model. Thirty rats with experimentally induced endometriosis were randomly divided into 2 groups and treated for 4 weeks with intraperitoneal CAPE (CAPE-treated group; 10 micromol/kg/d, n = 13) or vehicle (control group; n = 13). The volume and weight changes of the implants were calculated. Immunohistochemical and histologic examinations of endometriotic explants by semiquantitative analysis and measurements of peritoneal SOD, CAT, and MDA levels were made. Following 4 weeks of treatment with CAPE, there were significant differences in posttreatment spherical volumes (37.4 +/- 14.7 mm(3) vs 147.5 +/- 41.2 mm(3)) and explant weights (49.1 +/- 28.5 mg vs 158.9 +/- 50.3 mg) between the CAPE-treated groups and controls. The mean evaluation nomogram levels in glandular epithelium for COX-2 positivity by scoring system were 2.1 +/- 0.3 in the CAPE-treated group and 3.9 +/- 0.3 in the control group. In the CAPE-treated group, peritoneal levels of MDA and activities of SOD and CAT significantly decreased when compared with the control group (P < .01). Histologic analysis of the explants demonstrated mostly atrophy and regression in the treatment group, and semiquantitative analysis showed significantly lower scores in rats treated with CAPE compared with the control group. CAPE appeared to cause regression of experimental endometriosis. 相似文献
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Sahin FK Cosar E Koken G Toy H Basarali K Buyukbas S 《The journal of obstetrics and gynaecology research》2008,34(5):794-800
AIM: We investigated the effects of aprotinin on reperfusion injury in a controlled experimental rat torsion-detorsion model. METHODS: Thirty-two female Sprague-Dawley rats were divided into four groups. Sham operation was performed in group I; in group II only ovarian torsion was performed. In group III, torsion-detorsion was performed, plus 3 mL/kg saline was injected i.v. 30 min before detorsion. In group IV, torsion-detorsion was performed, plus aprotinin (30,000 KIU/kg) was injected 30 min before detorsion. Rats in the torsion group were killed after 360 degrees clockwise adnexial torsion for 3 h, and the ovaries were harvested. After 3 h of adnexial detorsion, the rats in the saline and aprotinin groups were killed and the adnexa were surgically removed. RESULTS: Ovarian tissue damage scores were significantly different among groups. Ovarian tissue and serum malondialdehyde levels in group III were significantly higher than those of groups I and IV (P<0.05). The serum levels of superoxide dismutase in group III were significantly lower than those of groups I and IV (P=0.01). Tissue and serum xanthine oxidase, nitric oxide, and tissue superoxide dismutase levels were comparable among groups (P>0.05). CONCLUSIONS: Aprotinin attenuates ischemia-reperfusion injury in a rat adnexial torsion-detorsion model. 相似文献
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Cenk Nayki Ferda Keskin Cimen Mehmet Kulhan Omer Erkan Yapca Nezahat Kurt 《Gynecological endocrinology》2018,34(9):809-814
The effect of rutin on ovarian ischemia-reperfusion (I/R) injury was investigated in this experimental study. Eighteen Wistar albino female rats were divided into three groups as follows: I/R group (IRG; n?=?6), 50?mg/kg rutin?+?I/R group (RG; n?=?6), and a healthy control group scheduled for a sham operation (SG; n?=?6). 2?h of ischemia and following 2?h of reperfusion were created in the IRG and RG by using a torsion model involving atraumatic vascular clips. Rutin, a flavonoid glycoside, was injected intraperitoneally at the dose of 50?mg/kg to RG group 1?h before reperfusion. Then, rats were euthanized and their ovaries were removed for biochemical and histopathological examination and also assessment of the gene expressions. IRG group had a significant increase in malondialdehyde (MDA) levels, in the expressions of tumor necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β), and also in the activity of cyclooxygenase 2 (COX-2) unlike the significant decrease in total glutathione (tGSH) levels and the activity of COX-1 when compared to the SG group. However, rutin significantly decreased MDA levels, the expressions of TNF-α and IL-1β, and also the activity of COX-2 while it increased significantly tGSH levels and the activity of COX-1 in the RG group in comparison with the IRG group. Rutin ameliorated the I/R-induced ovarian injury in rats via its possible antioxidative and anti-inflammatory effects. 相似文献
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Cosar E Sahin FK Köken G Toy H Basarali K Büyükbas S 《The Australian & New Zealand journal of obstetrics & gynaecology》2007,47(6):499-503
BACKGROUND: We investigated the effect of alpha-lipoic acid (LA) on reperfusion injury in a rat ovarian torsion-detorsion model. The changes in tissue and plasma levels of malondialdehyde (MDA), end-product of lipid peroxidation, superoxide dismutase (SOD), xanthine oxidase (XO) and nitric oxide (NO), were determined. Ovarian histopathological findings were scored and compared among groups. MATERIALS AND METHODS: Thirty-two female Sprague-Dawley rats were divided into four groups. Sham operation was performed in group I; in group II only ovarian torsion was performed. Group III received intraperitoneal injections of saline, and group IV received LA via intraperitoneal injections (LA group: aqueous solution at 36 mg/kg of body weight per day, saline group: equal volume of saline) 21, nine, and one hour before torsion of the ovary. Rats in the torsion group were killed after 360 degrees clockwise adnexial torsion for three hours, and ovaries were harvested. After three hours of adnexial detorsion, the rats in saline group and LA group were killed and adnexa were surgically removed. RESULTS: Ovarian tissue damage scores were significantly different among groups and were seen to correlate with tissue MDA levels. Ovarian tissue and serum MDA, NO and serum XO levels in the group III were significantly higher than those of the groups I and IV (P<0.05). The serum levels of SOD in the group III were significantly lower than those of the groups I and IV (P<0.05). CONCLUSION: These results suggest that LA pretreatment has beneficial effects in the prevention of ischaemia-reperfusion injury of the ovaries. 相似文献
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Kara Ozlem Yakan Birkan Kara Mustafa Kaymak Emin 《Taiwanese journal of obstetrics & gynecology》2018,57(6):836-841
Objective
It is aimed to evaluate the protective effect of bilberry on I/R injury in rat ovary.Materials and methods
A total 48 female Wistar–Albino rats were utilized to form five groups: Group 1 (control group) (n = 8), neither drug was given and nor procedure was performed. Group 2 (bilberry control group) (n = 10), single dose 200 mg/kg bilberry was administered by gavage and no procedure was performed. Group 3 (I/R group) (n = 10), no drug was given, 1-h ischemia and 2-h reperfusion was performed. Group 4 (bilberry before I/R group) (n = 10), single dose 200 mg/kg bilberry was administered by gavage before ischemia. Then 1-h ischemia and 2-h reperfusion was performed. Group 5 (bilberry after I/R group) (n = 10), first 1-h ischemia was performed. Single dose 200 mg/kg bilberry was administered by gavage and then 2-h reperfusion was performed. Right ovaries were surgically extirpated in all groups. In ovarian tissue samples, malondialdehyde (MDA) levels and enzymatic activities of superoxide dismutase (SOD), catalase (CAT) were studied. In ovarian tissue samples, DNA damage and apoptosis were assessed by using TUNEL method. Histopathologic examination was performed by light microscopic findings.Results
When group 3 was compared with another groups, MDA levels were significantly higher, enzymatic activities of SOD and CAT were found to be as significantly lower in ovarian tissue and blood (p < 0.001). In histopathologic examination, ovarian tissue damage in the group 3 were significantly higher than other groups (p < 0.001). Also, DNA damage and apoptosis were significantly higher in group 3 than other groups (p < 0.001).Conclusion
Biochemical findings were lower and histopathologic damage was less especially in bilberry before I/R group (group 4). In conclusion, bilberry seems to be effective in prevention of ovarian I/R injury and short-term treatment. 相似文献10.
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目的:探讨亮丙瑞林(GnRH-a)对大鼠顺铂所致卵巢功能损伤的保护作用。方法:选择SPF级别12周龄SD雌鼠96只,随机分为4组,每组24只。A组为正常对照组,腹腔注射生理盐水2ml/d。B组为顺铂组,C组为亮丙瑞林(GnRHa)+顺铂组,D组为单用亮丙瑞林组。于间情期C、D组皮下注射亮丙瑞林0.25mg/只(单次给药)。B、C组腹腔注射顺铂2mg/(kg.d),连续用药10天。用药结束后及结束后30天分别每组处死8只;每组剩余的雌鼠按2:1与雄鼠交配,产仔后处死。称体重、卵巢及子宫重量,统计卵泡数量和各级卵泡直径,观察卵巢和子宫病理学变化。测雌二醇(E2)、卵泡刺激素(FSH)。观察孕鼠产仔数量及外观。结果:用药结束后B、C组大鼠精神及饮食状况差,体重及子宫重量下降(P<0.05),以B组最为明显(P<0.05)。用药结束后30天4组大鼠体重增加,B组体重恢复得最慢(P<0.05)。用药结束后B、D组子宫黏膜层变薄,纤维成分多,子宫腺体少。C组子宫黏膜层变薄,但腺上皮细胞比B组清晰,有顶浆分泌现象。C、D组原始卵泡较多,生长卵泡、成熟卵泡数减少,各级卵泡的粒细胞层明显减少(P<0.05)。B组成熟卵泡减少明显(P<0.05)。用药结束后30天,B、C、D组子宫内膜厚度及腺体量均有所改善。B组成熟卵泡数减少(P<0.05)。C组和D组成熟卵泡数增多(P<0.05)。用药结束后B、C、D组FSH升高,E2下降(P<0.05),B组与C、D组相比,FSH升高,E2下降更明显(P<0.05)。用药结束后30天,C、D组FSH降低,E2升高(P<0.05)。4组鼠仔未见畸形,B组产仔数减少。结论:顺铂对大鼠卵巢有毒性作用。亮丙瑞林可使原始卵泡数增多,卵泡处于静止期,降低顺铂对卵巢的毒性作用。 相似文献
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M. Aslan G. Erkanli Senturk H. Akkaya S. Sahin B. Yılmaz 《Taiwanese journal of obstetrics & gynecology》2017,56(4):456-462
Objective
Ischemia/reperfusion (I/R) injuries result in damage to endothelial and parenchymal cells. Oxytocin (OXY) stimulates uterine contraction during parturition and myoepithelial cells during suckling. OXY has been used as a protective antioxidant. Kisspeptin plays a key role in the central control of reproductive functions and onset of puberty. Recent studies show that these reproductive hormones have protective potential as antioxidant. The aim of this study is to investigate the potential protective effects of Kisspeptin and OXY as antioxidants on I/R injured ovary and uterus of female rats.Materials and methods
Rats were separated into five groups. Group 1, is control group; Group 2, rats were subjected to ischemia followed by reperfusion. Group 3, OXY administration 30 min prior to I/R applied rats; Group 4, Kisspeptin administration 30 min prior to I/R applied rats; Group 5, OXY and Kisspeptin administration 30 min prior to I/R. Ovary and uterus were removed for histopathological and biochemical observations. Malondialdehyde, glutathione levels, and superoxide dismutase activities were analyzed in order to observe antioxidant potential of OXY and Kisspeptin. Hematoxylin and Eosin staining was applied for histopathologic scoring.Results
Stromal and granulosa cells in ovary, endometrial cells in uterus were damaged in I/R group. The cellular damage of ovary and uterus were reduced in OXY and Kisspeptin administered I/R group when compared to only Kisspeptin injected I/R group and I/R group. There is no significant difference between OXY and OXY + Kisspeptin injected I/R groups. MDA levels were decreased in Kisspeptin and/or Oxytocin applied I/R group compared to I/R group. SOD activity and GSH levels were increased in Kisspeptin and/or OXY applied I/R group compared to I/R group.Conclusions
The present results suggest that exogenous application of oxytocin and kisspeptin can have antioxidant effects on the uterus and ovary. 相似文献17.
Koklu E Gunes T Gunes I Canoz O Kurtoglu S Duygulu F Erez R 《American journal of perinatology》2006,23(7):387-395
Limited research in young adults and immature animals suggests a detrimental effect of tobacco on bone during growth. We aimed to determine the adverse effects of maternal nicotine exposure during pregnancy and lactation on neonatal rat bone development, and to determine a protective effect of ascorbic acid. Gravid rats were assigned into three groups: two experimental and one control (group I). In the first experimental group (group II), pregnant rats received 3 mg/kg/d nicotine subcutaneously during pregnancy from 1 to 21 days of gestation and lactation (until postnatal day 21). The second experimental group (group III) received nicotine and ascorbic acid (1 mg/kg body mass/d). Whole body mineral density (BMD), content (BMC), and area (BA) were measured on postnatal day 21. Histopathologic and morphologic findings of the femur were obtained. Maternal nicotine exposure decreased the body weight of the rat at the birth and postnatal day 21. The values of BMD, BA, and BMC of the groups were similar to each other. Width of the epiphyseal plate and the hypertrophic zone were higher in group III but lower in group II than in group I. Number of apoptotic chondrocytes was significantly increased in group II. The length of femur was higher in group I but lower in group II than in group III. Maternal nicotine exposure during gestation and lactation resulted in decreased body weight and bone lengthening. Ascorbic acid supplementation was found to prevent the adverse effects of maternal nicotine exposure on the growth plate. 相似文献
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Remzi Abali Nicel Tasdemir Mehmet Aytac Yuksel Savas Guzel Meltem Oznur Burcin Nalbantoglu Ufuk Goker Tasdemir 《European journal of obstetrics, gynecology, and reproductive biology》2013
Objective
The aim of this study was to investigate the effect of infliximab on experimentally induced ovarian ischemia/reperfusion injury (IRi).Study design
A total of 42 female rats were equally divided into 6 experimental groups; group 1: sham operation, group 2: 3-h ischemia, group 3 and 4: 3-h ischemia, 3-h reperfusion, group 5 and 6: 3-h ischemia, 24 h reperfusion. In group 4 and group 6, 30 min before reperfusion, infliximab was administered intraperitoneally at a dose of 5 mg/kg. Bilateral ovaries were removed for histopathologic and biochemical analysis. Serum MDA (sMDA), tissue MDA (tMDA), serum NO (sNO), tissue NO (tNO) and serum catalase concentrations were analyzed. Tissue damage of ovarian tissue was scored by histological examination.Results
The infliximab administration significantly lowered the sNO, tNO and sMDA concentrations in group 4 compared to group 3 (p = 0.041, p = 0.025 and p = 0.035, respectively). sNO, tNO and sMDA concentrations were also lower in group 6 when compared to group 5, but this differences were not significant (p > 0.05). On the other hand, tMDA concentrations were lower in infliximab-applied groups when compared to ischemia/reperfusion groups (group 3 vs. 4 and 5 vs. 6) (p = 0.045 and p = 0.048, respectively). Moreover, histopathologic tissue damage scores in infliximab administration groups were significantly lower than in ischemia/reperfusion groups (p < 0.001).Conclusion
Infliximab attenuates I/R-induced ovarian tissue injury in rats subjected to ischemia/reperfusion. 相似文献19.
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Mehmet Karaca Fehmi Odabasoglu Yakup Kumtepe Abdulmecit Albayrak Elif Cadirci Osman N. Keles 《European journal of obstetrics, gynecology, and reproductive biology》2009