Journal
AMERICAN JOURNAL OF CHINESE MEDICINE
Volume 46, Issue 4, Pages 785-800Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0192415X18500416
Keywords
1, 2, 3, 4, 6-Penta-O-Galloyl-beta-D-Glucose (PGG); Renal Ischemia-Reperfusion; Acute Kidney Injury; Vascular Inflammation; Tubular Injury
Funding
- National Research Foundation of Korea (NRF) grant - Korean Government (MSIP) [2017R1A5A2015805, 2015M3A9A5030620, 2017R1A2B4009884]
- National Research Foundation of Korea [2017R1A2B4009884, 2015M3A9A5030620] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Renal ischemia-reperfusion injury (IRI), an important cause of acute kidney injury (AKI), causes increased renal tubular injury and microvascular inflammation. 1, 2, 3, 4, 6-penta-O-galloyl-beta-D-glucose (PGG) from Galla rhois has anticancer, anti-oxidation and angiogenesis effects. We examined protective effects of PGG on IRI-induced acute AKI. Clamping both renal arteries for 45 min induced isechemia and then reperfusion. Treatment with PGG (10 mg/kg/day and 50 mg/kg/day for four days) significantly ameliorated urine volume, urine osmolality, creatinine clearance (Ccr) and blood urea nitrogen (BUN). In addition, PGG increased aquaporine 1/2/3, Na+-K+-ATPase and urea transporter (UT-B) and decreased ICAM-1, MCP-1, and HMGB-1 expression. In this histopathologic study, PGG improved glomerular and tubular damage. Immunohistochemistry results showed that PGG increased aquaporine 1/2, and Na+-K+ ATPase and decreased ICAM-1 expression. These findings suggest that PGG ameliorates tubular injury including tubular dysfunction and microvascular inflammation in IRI-induced AKI rats.
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