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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Ascorbic acid deficiency increases endotoxin influx to portal blood and liver inflammatory gene expressions in ODS rats.

Abstract Source:

Nutrition. 2015 Feb ;31(2):373-9. Epub 2014 Aug 1. PMID: 25592017

Abstract Author(s):

Yuki Tokuda, Natsuko Miura, Misato Kobayashi, Yukiko Hoshinaga, Atsushi Murai, Hiroaki Aoyama, Hiroyuki Ito, Tatsuya Morita, Fumihiko Horio

Article Affiliation:

Yuki Tokuda

Abstract:

OBJECTIVE: The aim of this study was to determine whether ascorbic acid (AsA) deficiency-induced endotoxin influx into portal blood from the gastrointestinal tract contributes to the inflammatory changes in the liver.

METHOD: The mechanisms by which AsA deficiency provokes inflammatory changes in the liver were investigated in Osteogenic Disorder Shionogi (ODS) rats (which are unable to synthesize AsA). Male ODS rats (6-wk-old) were fed a diet containing sufficient (300 mg/kg) AsA (control group) or a diet without AsA (AsA-deficient group) for 14 or 18 d.

RESULTS: On day 14, the hepatic mRNA levels of acute-phase proteins and inflammation-related genes were significantly higher in the AsA-deficient group than the control group, and these elevations by AsA deficiency were exacerbated on day 18. The serum concentrations of interleukin (IL)-1β and IL-6, which induce acute-phase proteins in the liver, were also significantly elevated on day 14 in the AsA-deficient group compared with the respective values in the control group. IL-1β mRNA levels in the liver, spleen, and lung were increased by AsA deficiency. Moreover, on both days 14 and 18, the portal blood endotoxin concentration was significantly higher in the AsA-deficient group than in the control group, and a significant correlation between serum IL-1β concentrations and portal endotoxin concentrations was found in AsA-deficient rats. In the histologic analysis of the ileum tissues, the number of goblet cells per villi was increased by AsA deficiency.

CONCLUSION: These results suggest that AsA deficiency-induced endotoxin influx into portal blood from the gastrointestinal tract contributes to the inflammatory changes in the liver.

Study Type : Animal Study
Additional Links
Additional Keywords : Gene Expression : CK(93) : AC(46)
Adverse Pharmacological Actions : Inflammatory : CK(298) : AC(83)

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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