Abstract | AIM: To determine whether a specific adenosine A(2A) receptor agonist (ATL-146e) can ameliorate aspirin-induced gastric mucosal lesions in rats, and reduce neutrophil accumulation and production of pro-inflammatory cytokines. METHODS: RESULTS: Intragastric administration of aspirin induced multiple hemorrhagic erosions in rat gastric mucosa. The total length of gastric erosions ( ulcer index) in control rats was 29.8+/-7.75 mm and was reduced to 3.8+/-1.42 mm after pretreatment with 5.0 g/kg ATL-146e (P<0.01). The gastric contents of MPO and pro-inflammatory cytokines were all increased after the administration of aspirin and reduced to nearly normal levels by ATL-146e. Gastric mucosal PGE2 concentration was not affected by intraperitoneal injection of ATL-146e. CONCLUSION:
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Authors | Masaru Odashima, Michiro Otaka, Mario Jin, Koga Komatsu, Isao Wada, Youhei Horikawa, Tamotsu Matsuhashi, Natsumi Hatakeyama, Jinko Oyake, Reina Ohba, Sumio Watanabe, Joel Linden |
Journal | World journal of gastroenterology
(World J Gastroenterol)
Vol. 12
Issue 4
Pg. 568-73
(Jan 28 2006)
ISSN: 1007-9327 [Print] United States |
PMID | 16489670
(Publication Type: Journal Article)
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Chemical References |
- ATL 146e
- Anti-Inflammatory Agents, Non-Steroidal
- Cyclohexanecarboxylic Acids
- Interleukin-1
- Purines
- Receptor, Adenosine A2A
- Tumor Necrosis Factor-alpha
- Peroxidase
- Dinoprostone
- Aspirin
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Topics |
- Animals
- Anti-Inflammatory Agents, Non-Steroidal
(toxicity)
- Aspirin
(toxicity)
- Cyclohexanecarboxylic Acids
(pharmacology)
- Dinoprostone
(analysis)
- Gastric Mucosa
(drug effects, enzymology, metabolism, pathology)
- Interleukin-1
(analysis)
- Male
- Peroxidase
(metabolism)
- Purines
(pharmacology)
- Rats
- Rats, Sprague-Dawley
- Receptor, Adenosine A2A
(drug effects, physiology)
- Tumor Necrosis Factor-alpha
(analysis)
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