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KMID : 0363720090420040265
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Korean Journal of Anatomy
2009 Volume.42 No. 4 p.265 ~ p.275
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Expression of iNOS and NADPH-diaphroase Reactivity in the Lipopolysaccharide Treated Rat Kidney
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Choi Jae-Youn
Lee So-Yeong
Cha Jung-Ho
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Abstract
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Inducible nitric oxide synthase (iNOS) has been known to be involved in the various physiological metabolim and has been attracting topic. However, there are extensive differences in the reports about the localization of iNOS expression. To resolve this discrepancy, we compared immunohistochemical data from four iNOS antibody produced by different company (Chemicon, CH; Sigma, SI; Transduction Laboratories, TL; Upstate, UP), and NADPHdiaphorase (NADPH-d) enzyme-histochemical results using light- and transmission electorn-microscope in the lipopolysaccharide (LPS)-treated rat kidney. Electron microscopical examination revealed two different distribution of the NADPH-d reaction product. In the majority of NADPH-d reaction-positive cells, reaction depositions were restricted to the mitochondia, and in the cells of macula densa, descending thin limb (DTL), capsular epithelium (CE) and interstitial wandering cells (WC), NADPH-d positivities were found in the cytoplasm. In immunohistochemical results from LPStreated animal, DTL, CE and WC were positively stained with TL and UP antibodies but with CH and SI antibodies. We conclude that NADPH-d histochemistry may be usefull for identifing the iNOS-positive cells morphologically.
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KEYWORD
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Lipopolysaccharide, Kidney, Inducible NOS, NADPH-diaphorase
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