Wistar Albino Sıçanlarda Sisplatin ile Oluşan Böbrek Hasarında Kuersetinin Etkileri

ÖZ Amaç: Sisplatin birçok kanser türünün tedavisinde yaygın olarak kullanılan etkili antineoplastik ilaçlardan biridir. Sisplatinin nefrotoksisite, ototoksisite ve kardiyomiyopati gibi zararlı etkileri vardır. Kuersetin flavonoid grubu bir antioksidandır. Bu çalışmada, sıçanlarda sisplatin ile oluşturulan böbrek hasarına karşı kuersetinin tedavi edici etkilerinin incelenmesi amaçlanmıştır. Gereç ve Yöntem: Wistar albino cinsi 28 adet erkek sıçan rastgele seçilerek 4 gruba ayrıldı. Grup 1: Kontrol (uygulama yapılmadı), Grup 2: Kuersetin (25 mg/kg/7 gün/intraperitoneal), Grup 3: Sisplatin (7 mg/kg/tek doz/ intraperitoneal), Grup 4: Sisplatin+kuersetin (7 mg/kg/tek doz/ intraperitoneal sisplatin ardından 25 mg/kg/7 gün/ intraperitoneal kuersetin). Rutin histolojik takipten sonra hematoksilen-eozin ve periodic acid-schiff boyamaları yapıldı. Histopatolojik hasar skoru hesaplandı. Caspase-3 immün boyaması yapılarak skorlandı. Bulgular: Kontrol ve kuersetin grupları normal histolojik görünümdeydi. Sisplatin grubunda tubuler dilatasyon, tubul epitelinde dökülme, tubul epitel hücrelerinde vakuolizasyon ve proksimal tubullerde mikrovillus kaybı tespit edildi. Ayrıca yer yer infiltrasyon alanlarına da rastlandı. Sisplatin grubunun caspase-3 immün boyanma yoğunluğunda kontrol grubuna göre anlamlı artış tespit edildi (p=0,000). Sisplatin+kuersetin grubunda histopatolojik bulgular sisplatin grubuna kıyasla anlamlı derecede azalmıştı (p=0,001). Sonuç: Bu çalışmada, sisplatinin sebep olduğu böbrek hasarının tedavisinde kuersetinin histopatolojik açıdan yararlı olduğu düşüncesindeyiz

THE PROTECTIVE EFFECTS OF TETRANDRINE AGAINST TO HISTOLOGICAL, SPERMATOLOGICAL AND OXIDATIVE DAMAGE INDUCED BY AROCLOR 1254 ON THE MALE RATS REPRODUCTIVE SYSTEM

Objectives: Aroclor (AR) 1254; has many adverse effects on male reproduction such as carcinogenic, teratogenic, immune and endocrine disruption problems. Tetrandrine (TET), a bisbenzillisoquinoline alkaloid isolated from the root of Stephania tetrandra S. Moore, has protective effects such as immunomodulatory, anti-cancer, and anti-inflammatory. The objective of this study was to investigate the possible curative effects of TET therapy against testicular damage (histological, spermatological and oxidative damage) induced by AR1254. Materials and Methods: Twenty-eight male rats were randomly divided into four equal-sized groups: a control group; (1 ml of corn oil by gastric oral gavage), AR1254 group; (2 mg/kg) AR1254 administered intraperitoneally), TET group; (TET by gastric oral gavage 30 mg/kg) and AR 1254 + TET group;(Aroclor 1254 and TET administered together at the same doses as the previous groups. Results: The AR1254 treatment caused morphological and spermatological damage on testis tissue; oedema vacuolization and congestion, in interstitial area, reduction in spermatogenic cells, arrested spermatocytes at different stages of spermatogenesis, shedding of spermatogenic serial cells into tubular lumens, a decline in epididymal sperm concentrations, sperm motility and a rise in abnormal sperm ratios. The AR1254 administration induced an increase in the oxidative parameters and a decrease in enzymatic and nonenzymatic antioxidant levels. The TET treatment significantly ameliorated histological, oxidative, and sperm damage caused by AR1254. Conclusion: This study demonstrated the protective effects of TET against AR1254-induced male rat reproductive damage

18β-glycyrrhetinic acid attenuates global cerebral ischemia/reperfusion-induced cardiac damage in C57BL/J6 mice

Abstract The aim of the present study is to investigate the cardioprotective effects of 18β-glycyrrhetinic acid (18β -GA) against oxidative and histological damage caused by global cerebral ischemia/ reperfusion (I/R) in C57BL/J6 mice. All male mice (n:40) were randomly divided into four groups: (1) sham-operated (Sham), (2) I/R, (3) 18β-GA, and (4) 18β -GA+I/R. Ischemia was not applied to the sham and 18β-GA groups. In the I/R group, the bilateral carotid arteries were clipped for 15 min to induce ischemia, and the mice were treated with the vehicle for 10 days. In the 18β-GA group, the mice were given 18β-GA (100 mg/kg) for 10 days following a median incision without carotid occlusion. In the 18β-GA+I/R group, the ischemic procedure performed to the I/R model was applied to the animals and afterwards they were intraperitoneally (i.p.) treated with 18β-GA (100 mg/kg) for 10 days. It was found that global cerebral I/R increased TBARS levels and decreased antioxidant parameters. The 18β-GA treatment decreased the level of TBARS and increased GSH, GPx, CAT, SOD activities. Also, the control group cardiac tissue samples were observed to have a normal histological appearance with the Hematoxylin-Eosin staining method. Histopathological damage was observed in the heart tissue samples belonging to the I/R group. The 18β-GA treatment ameliorates oxidative and histological injury in the heart tissue after global ischemia reperfusion, and may be a beneficial alternative treatment

Protective role of diospyros lotus l. in cisplatin-induced cardiotoxicity: Cardiac damage and oxidative stress in rats

Objectives: Cisplatin is a powerful chemotherapeutic drug that is used to treatment a wide variety of cancers. Despite clinical data demonstrating the cardiotoxic effect of cisplatin, few studies have been carried to improve the cardiotoxicity of cisplatin. In cisplatin-induced toxicity, oxidative stress plays a critical role. This study determined the effect of Diospyros lotus L. fruit (DL), a powerful antioxidant plant, on heart damage caused by cisplatin through histological examination and oxidative stress parameters. Materials and Methods: Twenty eight male rats were randomly divided into four groups. An isotonic solution was given to the control group. A single dose of 7 mg/kg cisplatin was administered intraperitoneally to the cisplatin group. 1.000 mg/kg DL was given by gavage for 10 days to the DL group. Cisplatin and DL were administered together in the same doses to the treatment group. Thiobarbituric acid reactive substances (TBARS) levels, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) activities, and total glutathione (GSH) level were measured in the heart tissue of the experimental rats. Histological examination was also performed to determine any damage to the hearts of the experimental rats. Results: While TBARS levels in the cisplatin group increased significantly, SOD, CAT, GPx activities, and total GSH level decreased significantly. TBARS levels decreased significantly and SOD, CAT, GPx activities and GSH levels increased with DL treatment. According to the histological examination, histopathological differences were observed in the cisplatin group. Histopathological findings were either absent or decreased in the DL-treated group. Conclusion: Results of the study showed that DL therapy reduced oxidative stress and histological changes caused by cisplatin. DL could be a potential candidate for reducing cardiac damage caused by cisplatin

Nerolidol attenuates dehydroepiandrosterone-induced polycystic ovary syndrome in rats by reGülating oxidative stress and decreasing apoptosis

Aims: Although nerolidol (NRL) is a naturally occurring sesquiterpene alcohol with many pharmacological ac-tivities, its role in dehydroepiandrosterone DHEA-induced polycystic ovary syndrome PCOS is unknown. This study aims to explore the potential beneficial effects and underlying molecular mechanisms of nerolidol treat-ment on polycystic ovary syndrome.Main methods: Pre-pubertal female Sprague-Dawley rats were randomly assigned into four groups (n = 8/group); group I: control; group II: PCOS; group III: P + NRL; group IV: NRL. Biochemical parameters related to oxidative stress, inflammation, apoptosis, and hormones were estimated in the blood and ovarian tissues. Histopatho-logical, ultrastructural, and immunohistochemical analyses were performed. Bax, P53, Cas-3, and Bcl-2 gene expression levels were detected with RT-PCR. The membrane array analysis detected chemokine, cytokine, and growth factor protein profiles.Key findings: In light of the available data, it can deduce that nerolidol has a significant ameliorating effect on lipid peroxidation, oxidative stress, inflammation, histopathological damage, and apoptosis accompanying PCOS in female rats.Significance: PCOS is not only a reproductive pathology but also a systemic condition and its etiopathogenesis is still not fully understood. Sİnce changes in PCOS have important long-term effects on health, this study evaluated the efficacy of nerolidol, a phytotherapeutic for the control of biochemical, apoptotic, histopathological, and metabolic changes.Inonu University Department of Scientific Research Projects [TCD-2020-2090]This study was supported by the Inonu University Department of Scientific Research Projects (Project number: TCD-2020-2090, Turkiye)

Investigation of the Protective Effect of Nerolidol on Dehydroepiandrosterone-induced Polycystic Ovary Syndrome in Female Rats

[No Abstract Available]Inonu University Scientific Research Projects Coordination Unit [TCD-2020/2090]This study was supported by Inonu University Scientific Research Projects Coordination Unit (Project Number: TCD-2020/2090)