Reactive oxygen metabolites play an important role in the ischemia/reperfusion (I/R)-induced tissue injury. This study was designed to investigate the possible protective effects of quercetin against I/R injury of the rat corpus cavernosum tissue. To induce I/R injury, abdominal aorta was clamped for 30 min and reperfused for 60 min. Quercetin (20 mg/kg) or vehicle was given before ischemia and just after reperfusion in the I/R group and in the sham-operated control group in which clamping was not performed. After decapitation, corpus cavernosum tissues were removed and either placed in organ baths or stored for evaluating biochemical parameters. Oxidative injury was examined by measuring lucigenin chemiluminescence (CL), nitric oxide (NO), malondialdehyde (MDA) and glutathione (GSH) levels, superoxide dismutase (SOD) and myeloperoxidase (MPO) activities and caspase-3 protein levels. In the I/R group, contractile responses to phenylephrine and relaxation responses to carbachol were impaired significantly compared with those in the control groups, while quercetin treatment in I/R group reversed both of the responses. On the other hand, increase in lucigenin CL, NO, MDA levels and MPO and caspase-3 activities and decrease in GSH levels and SOD activity in the cavernosal tissues of the I/R group were also significantly reversed by quercetin treatment. Furthermore, observed distorted morphology with ruptured endothelial cells and vacuolization in the cytoplasm of cavernosal tissues of I/R no longer persisted in the quercetin-treated I/R group. Thus, our results suggested that treatment with quercetin may have some benefits in controlling I/R-induced tissue injury through its anti-inflammatory, anti-apoptotic, and antioxidant effects.
These results indicate that LA have a beneficial effect in improving the bladder tonus via its antioxidant and anti-inflammatory actions following SCI.
The morphological and biochemical investigation of electromagnetic wave effects on urinary bladder in prenatal ratsPrenatal sıçan mesanesi üzerine elektromanyetik dalganın etkilerinin morfolojik ve biyokimyasal olarak incelenmesi ÖZ Amaçlar: Bu çalışmanın amacı, dijital mobil telefonlarından gelen ve en yüksek spesifik absorbsiyon oranı (Specific Absorbtion Rate-SAR) değeri 1,79W/kg olan dijital selüler sistem (DSS) 1800-MHz radyasyonunun erkek sıçan mesanesi üzerine etkilerini araştırmaktır.Gereç ve Yöntem: Sıçanlara mobil telefondan stand-by (Stand-by Fetal grup) ya da kesintisiz iletim modunda yayılan elektromagnetik dalga (EMD Fetal grup), günde 2 saat, embriyonik 14. günden doğuma kadar ya da doğumdan sonraki 60. güne kadar (Stand-by ve EMD grupları) uygulanmıştır. Deney gruplarındaki tüm hayvanların mesaneleri postnatal 60. günde eter anestezisi altında alınmış ve ışık ve elektron mikroskopik değerlendirmeler için hazırlanmıştır. Ürotelyumun bariyer fonkisyonu zonula okludens 1 ve E-kaderin immunhistokimyası ve transmisyon elektron mikroskobik inceleme için rutenyum kırmızısı boyaması ile değerlendirilmiştir. Oksidatif hasar biyokimyasal teknikler ile değerlendirilmiştir.Bulgular: Elektromagnetik dalga grubunda, ürotelyum dökülmeleri, mast hücre sayısında artış, sıkı bağlantılarda hasar ve interselüler alanda genişlemeler gözlenmiştir. Son olarak, kontrol grubu ile kıyaslandığında, tüm gruplarda malondialdehit seviyesinde yükselme ve glutatyon seviyesinde düşüş gözlenmiştir.Sonuç: Elektromagnetik dalga, maruz kalınan yoğunluk ve süreye paralel olarak, gelişim sürecindeki mesane üzerine olumsuz etki yapmaktadır. Bu değişiklikler mesanede enflamatuvar hastalıklara sebep olabilir.
Antioxidants are frequently used in several dietary supplements and have been probed for their significant role in the prevention of diseases like cancer or coronary heart disease. Acetyl salicylic acid has grabbed substantial attention due to their ability in impeding oxidative stress. In the present study, nine new salicylic acid derivatives:ethylidene] benzohydrazides and Hg (II) complex of N'-[(1Z)-1-(6-bromo-2-oxo-2H-chromen-3-yl) ethylidene]-2-hydroxybenzohydrazide have been synthesized and characterized in the light of advanced spectral techniques. The antioxidant properties of these compounds were investigated using 2,2-diphenyl-1picrylhydrazyl (DPPH) spectrometric assay and compared with the results of cyclic voltammetry studies. The redox properties shown by the active molecule using cyclic voltammetry correlated well with the biochemical study.
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