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Abstract Title:

Rhubarb Monomers Protect Intestinal Mucosal Barrier in Sepsis via Junction Proteins.

Abstract Source:

Chin Med J (Engl). 2017 May 20 ;130(10):1218-1225. PMID: 28485323

Abstract Author(s):

Lyu Wang, Yun-Liang Cui, Zhe Zhang, Zhao-Fen Lin, De-Chang Chen

Article Affiliation:

Lyu Wang


BACKGROUND: Leakage of the intestinal mucosal barrier may cause translocation of bacteria, then leading to multiorgan failure. This study hypothesized that rhubarb monomers might protect the gut mucosal barrier in sepsis through junction proteins.

METHODS: Healthy male Sprague-Dawley rats (weighing 230-250 g) under anesthesia and sedation were subjected to cecal ligation and perforation (CLP). After surgical preparation, rats were randomly assigned to eight groups (n = 6 or 8 each group): sham group (Group A: normal saline gavage); sepsis group (Group B: normal saline gavage); Group C (intraperitoneally, dexamethasone 0.5 mg/kg) immediately after CLP surgery; and rhubarb monomer (100 mg/kg in normal saline)-treated groups (Group D: rhein; Group E: emodin; Group F: 3,8-dihydroxy-1-methyl-anthraquinone-2-carboxylic acid; Group G: 1-O-caffeoyl-2-(4-hydroxy-O-cinnamoyl)-D-glucose; and Group H: daucosterol linoleate). Animals were sacrificed after 24 h. Intestinal histology, lactulose, mannitol concentrations were measured, and zonula occludens (ZO)-1, occludin and claudin-5 transcription (polymerase chain reaction), translation (by Western blot analysis), and expression (by immunohistochemistry) were also measured.

RESULTS: Intestinal histology revealed injury to intestinal mucosal villi induced by sepsis in Group B, compared with Group A. Compared with Group A (0.17± 0.41), the pathological scores in Groups B (2.83 ± 0.41, P<0.001), C (1.83± 0.41, P<0.001), D (2.00± 0.63, P<0.001), E (1.83± 0.41, P<0.001), F (1.83± 0.75, P<0.001), G (2.17± 0.41, P<0.001),and H (1.83± 0.41, P<0.001) were significantly increased. Lactulose/mannitol (L/M) ratio in Group B (0.046± 0.003) was significantly higher than in Group A (0.013 ± 0.001, P<0.001) while L/M ratios in Groups C (0.028± 0.002, P<0.001), D (0.029± 0.003, P<0.001), E (0.026± 0.003, P<0.001), F (0.027± 0.003, P<0.001), G (0.030± 0.005, P<0.001), and H (0.026± 0.002, P<0.001) were significantly lower than that in Group B. ZO-1, occludin and claudin-5 transcription, translation, and expression in Group B were significantly lower than that in Group A (P<0.001), but they were significantly higher in Groups C, D, E, F, G, and H than those in Group B (P<0.05).

CONCLUSION: Rhubarb monomer treatment ameliorated mucosal damage in sepsis via enhanced transcription, translation, and expression of junction proteins.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Gastroprotective : CK(155) : AC(73)

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