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BMC Complementary Medicine and Therapies
Published in: BMC Complementary Medicine and Therapies 1/2013

Open Access 01-12-2013 | Research article

RETRACTED ARTICLE: Gastroprotective effect of desmosdumotin C isolated from Mitrella kentii against ethanol-induced gastric mucosal hemorrhage in rats: possible involvement of glutathione, heat-shock protein-70, sulfhydryl compounds, nitric oxide, and anti-Helicobacter pylori activity

Authors: Heyam Mohamed Ali Sidahmed, Ainnul Hamidah Syahadah Azizan, Syam Mohan, Mahmood Ameen Abdulla, Siddig Ibrahim Abdelwahab, Manal Mohamed Elhassan Taha, A Hamid A Hadi, Kamal Aziz Ketuly, Najihah Mohd Hashim, Mun Fai Loke, Jamuna Vadivelu

Published in: BMC Complementary Medicine and Therapies | Issue 1/2013

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Abstract

Background

Mitrella kentii (M. kentii) (Bl.) Miq, is a tree-climbing liana that belongs to the family Annonaceae. The plant is rich with isoquinoline alkaloids, terpenylated dihydrochalcones and benzoic acids and has been reported to possess anti-inflammatory activity. The purpose of this study is to assess the gastroprotective effects of desmosdumotin C (DES), a new isolated bioactive compound from M. kentii, on gastric ulcer models in rats.

Methods

DES was isolated from the bark of M. kentii. Experimental rats were orally pretreated with 5, 10 and 20 mg/kg of the isolated compound and were subsequently subjected to absolute ethanol-induced acute gastric ulcer. Gross evaluation, mucus content, gastric acidity and histological gastric lesions were assessed in vivo. The effects of DES on the anti-oxidant system, non-protein sulfhydryl (NP-SH) content, nitric oxide (NO)level, cyclooxygenase-2 (COX-2) enzyme activity, bcl-2-associated X (Bax) protein expression and Helicabacter pylori (H pylori) were also investigated.

Results

DES pre-treatment at the administered doses significantly attenuated ethanol-induced gastric ulcer; this was observed by decreased gastric ulcer area, reduced or absence of edema and leucocytes infiltration compared to the ulcer control group. It was found that DES maintained glutathione (GSH) level, decreased malondialdehyde (MDA) level, increased NP-SH content and NO level and inhibited COX-2 activity. The compound up regulated heat shock protein-70 (HSP-70) and down regulated Bax protein expression in the ulcerated tissue. DES showed interesting anti-H pylori effects. The efficacy of DES was accomplished safely without any signs of toxicity.

Conclusions

The current study reveals that DES demonstrated gastroprotective effects which could be attributed to its antioxidant effect, activation of HSP-70 protein, intervention with COX-2 inflammatory pathway and potent anti H pylori effect.
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Metadata
Title
RETRACTED ARTICLE: Gastroprotective effect of desmosdumotin C isolated from Mitrella kentii against ethanol-induced gastric mucosal hemorrhage in rats: possible involvement of glutathione, heat-shock protein-70, sulfhydryl compounds, nitric oxide, and anti-Helicobacter pylori activity
Authors
Heyam Mohamed Ali Sidahmed
Ainnul Hamidah Syahadah Azizan
Syam Mohan
Mahmood Ameen Abdulla
Siddig Ibrahim Abdelwahab
Manal Mohamed Elhassan Taha
A Hamid A Hadi
Kamal Aziz Ketuly
Najihah Mohd Hashim
Mun Fai Loke
Jamuna Vadivelu
Publication date
01-12-2013
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2013
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/1472-6882-13-183

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