墨西哥科学家通过大鼠研究表明,大蒜素具有降压、抗氧化和肾保护作用,大蒜素显示出的有益效果与氯沙坦相似,甚至更好。
https://www.mdpi.com/1422-0067/18/9/1980/htm
The Beneficial Effects of Allicin in Chronic Kidney Disease Are Comparable to Losartan
Recent studies suggest that allicin may play a role in chronic kidney disease (CKD), reducing hypertension and oxidative stress and improving renal dysfunction. In the present study, CKD was induced by 5/6 nephrectomy and the animals were divided into four treatment groups as follows: control (C), CKD, CKD+allicin (40 mg/kg pathway oral) (CKDA), and CKD+Losartan (20 mg/kg) (CKDL). After CKD induction, the rats developed hypertension from week 3 to the end of the study. This was associated with increased creatinine and blood urea nitrogen (BUN) levels in serum, increased albuminuria, increased urinary excretion of N-acetyl-β-d-glucosaminidase (NAG), increased nephrin expression, and incrased histological alterations in the cortex. The levels of angiotensin receptors and endothelial nitric oxide synthase (eNOS) were decreased in the renal cortex from the CKD group. Otherwise, lipid and protein oxidation were higher in the CKD group than in the control group. A disturbance was observed in the expression levels of the nuclear factor erythroid 2-related factor 2/Kelch ECH associating protein 1 system (Nrf2/keap1) and the antioxidant enzymes catalase, superoxide dismutase, and heme oxygenase-1. Allicin or losartan treatments relieved renal dysfunction, hypertension, and oxidative stress. In addition, both treatments showed the same efficacy on the expression of angiotensin receptors, the nephrin, Nrf2/keap1 pathway, and eNOS. Further in silico analyses suggest that allicin and losartan could have a common mechanism involving interaction with AT1 receptors. Allicin showed antihypertensive, antioxidant, and nephroprotective effects. The beneficial effects showed by allicin are similar, or even better, than those of losartan. In fact, the effect of allicin on blood pressure and renal function is comparable to reductions seen with losartan, a prescription drug commonly used as a first-line therapy.
(网页翻译,仅供参考:血液尿素氮(BUN)水平升高,白蛋白尿增多,N-乙酰-β- d尿排泄增加有关-氨基葡萄糖苷酶(NAG),肾单位蛋白表达增加以及皮质的组织学改变加剧。CKD组肾皮质的血管紧张素受体和内皮型一氧化氮合酶(eNOS)含量降低。否则,CKD组的脂质和蛋白质氧化高于对照组。观察到核因子红系2相关因子2 / Kelch ECH相关蛋白1系统(Nrf2 / keap1)和抗氧化酶过氧化氢酶,超氧化物歧化酶和血红素加氧酶-1的表达水平受到干扰。大蒜素或氯沙坦治疗可缓解肾功能不全,高血压和氧化应激。此外,两种治疗对血管紧张素受体,肾素,Nrf2 / keap1途径和eNOS的表达均显示相同的功效。进一步的计算机分析表明,大蒜素和氯沙坦可能具有涉及与AT1受体相互作用的共同机制。大蒜素显示出降压,抗氧化和肾保护作用。大蒜素显示出的有益效果与氯沙坦相似,甚至更好。实际上,大蒜素对血压和肾功能的影响与氯沙坦(通常用作一线治疗的处方药)所见的减少效果相当。)
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