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2016 ; 125
(ä): 40-7
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A dual COX-2/sEH inhibitor improves the metabolic profile and reduces kidney
injury in Zucker diabetic fatty rat
#MMPMID27432695
Hye Khan MA
; Hwang SH
; Sharma A
; Corbett JA
; Hammock BD
; Imig JD
Prostaglandins Other Lipid Mediat
2016[Sep]; 125
(ä): 40-7
PMID27432695
show ga
Cyclooxygenase (COX) and soluble epoxide hydrolase (sEH) inhibitors have
therapeutic potential. The present study investigated efficacy of a novel dual
acting COX-2/sEH inhibitor, PTUPB in type 2 diabetic Zucker Diabetic Fatty (ZDF)
rats. Male ZDF rats were treated with vehicle or PTUPB (10mg/kg/d, i.p.) for 8
weeks. At the end of the 8-week experimental period, ZDF rats were diabetic
(fasting blood glucose, 287±45mg/dL) compared to Zucker Diabetic Lean rats (ZDL,
99±6mg/dL), and PTUPB treatment improved glycemic status in ZDF rats
(146±6mg/dL). Kidney injury was evident in ZDF compared to ZDL rats with elevated
albuminurea (44±4 vs 4±2mg/d) and nephrinurea (496±127 vs 16±4?g/d). Marked renal
fibrosis, tubular cast formation and glomerular injury were also present in ZDF
compared to ZDL rats. In ZDF rats, PTUPB treatment reduced kidney injury
parameters by 30-80% compared to vehicle. The ZDF rats also demonstrated
increased inflammation and oxidative stress with elevated levels of urinary
monocyte chemoattractant protein-1 excretion (862±300 vs 319±75ng/d), renal
macrophage infiltration (53±2 vs 37±4/mm(2)) and kidney malondialdehyde/protein
ratio (10±1 vs 5±1?mol/mg). PTUPB treatment decreased these inflammatory and
oxidative stress markers in the kidney of ZDF rats by 25-57%. These data
demonstrate protective actions of a novel dual acting COX-2/sEH inhibitor on the
metabolic abnormalities and kidney function in ZDF rat model of type 2 diabetes.