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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2015 ; 10
(10
): e0140884
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Chronic Arachidonic Acid Administration Decreases Docosahexaenoic Acid- and
Eicosapentaenoic Acid-Derived Metabolites in Kidneys of Aged Rats
#MMPMID26485038
Katakura M
; Hashimoto M
; Inoue T
; Mamun AA
; Tanabe Y
; Arita M
; Shido O
PLoS One
2015[]; 10
(10
): e0140884
PMID26485038
show ga
Arachidonic acid (ARA) metabolites produced by cyclo-oxygenase and lipoxygenase
are important mediators maintaining physiological renal function. However, the
effects of exogenous ARA on kidney function in vivo remain unknown. This study
examined the effects of long-term oral ARA administration on normal renal
function as well as inflammation and oxidative stress in aged rats. In addition,
we measured levels of renal eicosanoids and docosanoids using liquid
chromatography-tandem mass spectrometry. Control or ARA oil (240 mg/kg body
weight/day) was orally administered to 21-month-old Wistar rats for 13 weeks.
Levels of plasma creatinine, blood urea nitrogen, inflammatory and
anti-inflammatory cytokines, reactive oxygen species, and lipid peroxidation were
not significantly different between the two groups. The ARA concentration in the
plasma, kidney, and liver increased in the ARA-administered group. In addition,
levels of free-form ARA, prostaglandin E2, and 12- and 15-hydroxyeicosatetraenoic
acid increased in the ARA-administered group, whereas renal concentration of
docosahexaenoic acid and eicosapentaenoic acid decreased in the ARA-administered
group. Levels of docosahexaenoic acid-derived protectin D1, eicosapentaenoic
acid-derived 5-, and 18-hydroxyeicosapentaenoic acids, and resolvin E2 and E3
decreased in the ARA-administered group. Our results indicate that long-term ARA
administration led to no serious adverse reactions under normal conditions and to
a decrease in anti-inflammatory docosahexaenoic acid- and eicosapentaenoic
acid-derived metabolites in the kidneys of aged rats. These results indicate that
there is a possibility of ARA administration having a reducing anti-inflammatory
effect on the kidney.