ArticleClinical and experimental nephrology2013
Additive effects of cilnidipine and angiotensin II receptor blocker in preventing the progression of diabetic nephropathy in diabetic spontaneously hypertensive rats.
Article in Clinical and experimental nephrology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 8 citations in OpenAlex.
- Euterpe oleracea Mart. seed extract protects against renal injury in diabetic and spontaneously hypertensive rats: role of inflammation and oxidative stress.European journal of nutrition · 2018Article
- Additive effects of cilnidipine, an L-/N-type calcium channel blocker, and an angiotensin II receptor blocker on reducing cardiorenal damage in Otsuka Long-Evans Tokushima Fatty rats with type 2 diabetes mellitus.Drug design, development and therapy · 2014Article
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Authors and funding
5 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundCilnidipine (Cil) is an L/N-type calcium channel blocker (CCB) that is known to provide renal protection by decreasing the activity of the sympathetic nervous system and the renin-angiotensin system (RAS). However, very few studies have evaluated the renoprotective effects of Cil in hypertension complicated by diabetes mellitus. In this study, we compared the effects of cilnidipine and the L-type CCB, amlodipine (Aml), in combination with an angiotensin II receptor blocker (ARB) on diabetic nephropathy that developed as a result of inducing diabetes in hypertensive rats.
methodsDiabetes was induced in 9-week-old male spontaneously hypertensive rats by intraperitoneally injecting them with streptozotocin (40 mg/kg twice) and the rats (8 per group) were randomly assigned to receive valsartan (Val), Cil + Val, Aml + Val, or vehicle for 8 weeks through a gastric tube.
resultsThere were no significant differences in systolic blood pressure or plasma parameters between the two combination therapy groups. Blood pressure lowering by neither combination therapy significantly affected the glycemic variables. However, the increased glycogen levels in the kidney as a result of hyperglycemia were significantly suppressed in the groups that received combination therapy, and the increased proteinurea and glomerulosclerosis due to progression of the diabetic nephropathy were significantly suppressed in the Cil + Val group. In addition, a significant decrease in ED-1-positive cells was observed in the Cil + Val group alone.
conclusionThe results of this study suggested that the L/N-type CCB, cilnidipine, had additive antihypertensive and proteinuria-lowering effects when administered in combination with an ARB, even in type-1 diabetic rats, and that the L-type CCB, amlodipine, did not. Furthermore, combination therapy with cilnidipine and valsartan significantly reduced glycogen accumulation and ED-1-positive cell infiltration, suggesting that cilnidipine suppressed the excessive increase in the activity of the sympathetic nervous system and RAS through N-type calcium channel blockade.
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