ReferenceID 5677

Ingestion of mannose ameliorates thioacetamide-induced intrahepatic oxidative stress, inflammation and fibrosis in rats

Life Sci

BACKGROUND AND AIMS: The monosaccharide mannose has gained recent interest for its beneficial effect against certain inflammatory disorders. Nevertheless, the influence of mannose on experimentally-induced liver fibrosis

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Reference Id
5677
Evidence Id
22267
Core Evidence Id
22267
Source Reference Id
4597
Herb2 Reference Id
HBREF005394
Subject Paper Key
HBIN034421_34637794
Pubmed Id
34637794
Doi
10.1016/j.lfs.2021.120040
Paper Title
Ingestion of mannose ameliorates thioacetamide-induced intrahepatic oxidative stress, inflammation and fibrosis in rats
Paper Abstract
BACKGROUND AND AIMS: The monosaccharide mannose has gained recent interest for its beneficial effect against certain inflammatory disorders. Nevertheless, the influence of mannose on experimentally-induced liver fibrosis and the ensued inflammation is still not fully clear to date. MAIN METHODS: The current study investigated the outcomes of treating rats with mannose (0.2 ml of 20% w/v, oral gavage) 30 min before the twice weekly intoxication with thioacetamide (TAA) (200 mg/kg, intraperitoneal) for a total period of 8 weeks. KEY FINDINGS: The data indicated that mannose markedly dampened TAA-induced liver fibrosis, as indicated by lowering the fibrotic bridges shown by Masson's trichrome staining. This effect was consistent with reducing TAA-induced hepatocellular injury, as evidenced biochemically (serum ALT and AST activities) and pathologically (necroinflammation score). These hepatoprotective effects mediated by mannose were attributed to i) reversing TAA-induced rise in malondialdehyde (MDA) and decrease in reduced glutathione (GSH) expressions in the liver, ii) limiting TAA-induced release of the proinflammatory cytokines tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6), iii) impairing TAA-induced activation of hepatic stellate cells by downregulating alpha-smooth muscle actin expression (alpha-SMA), and more importantly, iv) dampening TAA-induced fibrogenesis driven by transforming growth factor-beta1 (TGF-beta1) and connective tissue growth factor (CTGF). SIGNIFICANCE: Mannose may be a valuable candidate for preventing oxidative stress, inflammation and fibrogenesis in the liver.
Journal
Life Sci
Publish Year
2021
Experiment Subject
rat
Experiment Type
Animal Experiment
Phenotype Related
Inflammation; Liver Fibrosis; Hepatocellular Injury; Inflammatory Disorders; Fibrogenesis
Paper Title Cn
Paper Title En
Ingestion of mannose ameliorates thioacetamide-induced intrahepatic oxidative stress, inflammation and fibrosis in rats
Bilingual Status
semi_complete