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首页> 外文期刊>Andrologia >Icarisid II, a PDE5 inhibitor from Epimedium wanshanense, increases cellular cGMP by enhancing NOS in diabetic ED rats corpus cavernosum tissue
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Icarisid II, a PDE5 inhibitor from Epimedium wanshanense, increases cellular cGMP by enhancing NOS in diabetic ED rats corpus cavernosum tissue

机译:Icarisid II(一种来自万山淫羊的PDE5抑制剂)可通过增强糖尿病ED大鼠海绵体组织中的NOS来增加细胞cGMP。

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The aim of this study was to explore the effects and mechanisms of Icarisid II (ICA-II) on enhancing the cellular cGMP in rat corpus cavernosum tissue (RCCT). Diabetes mellitus Wistar rats were induced by streptozotocin, and diabetic ED rats were selected for the RCCT culture by apomorphine. ICA-II was extracted and purified from Icariin (ICA) by enzymatic method. The RCCT was treated with ICA-II, ICA and Sildenafil at different concentrations. cGMP and nitric oxide synthase (NOS) activities were checked respectively by enzyme immunoassay. Meanwhile, nNOS, iNOS and eNOS in RCCT were checked by western blot. ICA-II evaluated the intracellular cGMP to 8.01?±?1.02?pmol?mg?1?min?1, which is much weaker than that from Sildenafil (12.4?±?1.16?pmol?mg?1?min?1) (P?
机译:这项研究的目的是探讨类胡萝卜素II(ICA-II)增强大鼠海绵体组织(RCCT)细胞cGMP的作用和机制。链脲佐菌素诱导糖尿病Wistar大鼠,阿扑吗啡选择糖尿病ED大鼠进行RCCT培养。通过酶法从伊卡瑞林(ICAR)中提取并纯化ICA-II。 RCCT用不同浓度的ICA-II,ICA和西地那非处理。通过酶免疫法分别检测cGMP和一氧化氮合酶(NOS)的活性。同时,采用蛋白质印迹法检测RCCT中的nNOS,iNOS和eNOS。 ICA-II将细胞内cGMP评估为8.01?±?1.02?pmol?mg ?1 ?min ?1 ,比西地那非(12.4?± ≤1.16pmol≤mg≤1≤min≤1)(P≤0.05)。 ICA-II和ICA之间没有显着差异。用10μmICA-II处理24和48?h,RCCT中nNOS表达显着增加(P 0.05),而eNOS表达水平却很低,没有任何变化。值得注意的是,在RCCT中,ICA-II在体外显着增加了细胞内NOS活性。除了PDE5抑制作用外,ICA-II还通过增强RCCT中nNOS的表达和NOS活性来增加细胞内cGMP。 ICA-II暗示通过NO–cGMP途径治疗神经性勃起功能障碍的潜在化合物。

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