scholarly journals The cytoprotective effect of a nitric oxide donor drug on gastric mucous membrane of rats treated with ketoprofen, a non-steroidal anti-inflammatory drug

2006 ◽  
Vol 43 (3) ◽  
pp. 233-237 ◽  
Author(s):  
Afonso Luiz Villa ◽  
Ceneviva Reginaldo ◽  
Fernanda Viaro ◽  
Fernando Ramalho ◽  
Antonio Dorival Campos ◽  
...  

BACKGROUND: Non-steroidal anti-inflammatory drugs are considered today a very important group of medication, with a wide variety of therapeutic use, in different areas of modern medicine. Despite their beneficial effects on the patient, these drugs show a high incidence of side effects, mainly in the gastrointestinal tract. The physiopathological mechanisms of non-steroidal anti-inflammatory drugs induced lesions and the gastric mucosa defense mechanism became an important source for medical research, especially those which try to evaluate the role of nitric oxide as a cytoprotective agent. AIM: To define a possible cytoprotective effect of a nitric oxide donor, isosorbide dinitrate, on the gastric mucous of rats submitted to non-steroidal anti-inflammatory drugs ketoprofen treatment. METHODS: Adult male Wistar rats, previously submitted to starvation for 24 hours and divided in three groups: group I (standard): animals that received isotonic saline solution intragastric by gavage and intravenous. Group II (control-ketoprofen): animals that received isotonic saline solution intragastric by gavage and ketoprofen intravenous. Group III (nitrate/ketoprofen): animals that received 2mM solution of isosorbide dinitrate intragastric by gavage and ketoprofen intravenous. Later on, these animals were sacrificed and had their stomach removed and submitted to macroscopical, microscopical and biochemical studies. The evaluated parameters were: a) gastric lesion index; b) gastric mucous layer thickness; c) gastric tissue nitrate/nitrite (NOx) concentration and d) gastric tissue malondialdehyde concentration. RESULTS: a) Gastric lesion index evaluation showed a smaller statistically significant incidence on the animals of group III; b) group III showed a thicker mucous layer, which also was statistically significant, when compared to group II; c) the variation on tissue nitrate/nitrite concentration was similar in all three groups, without statistical significance when compared to each other. CONCLUSION: Isosorbide dinitrate has a cytoprotective activity on the gastric mucosa of rats submitted to ketoprofen action.

2001 ◽  
Vol 76 (6) ◽  
pp. 1895-1904 ◽  
Author(s):  
Masato Asanuma ◽  
Sakiko Nishibayashi-Asanuma ◽  
Ikuko Miyazaki ◽  
Masahiro Kohno ◽  
Norio Ogawa

2004 ◽  
Vol 173 (2) ◽  
pp. 874-882 ◽  
Author(s):  
Stefano Fiorucci ◽  
Andrea Mencarelli ◽  
Eleonora Distrutti ◽  
Monia Baldoni ◽  
Piero del Soldato ◽  
...  

Cephalalgia ◽  
2017 ◽  
Vol 38 (4) ◽  
pp. 776-785 ◽  
Author(s):  
Radhouane Dallel ◽  
Amélie Descheemaeker ◽  
Philippe Luccarini

Background A subgroup of migraineurs experience an increase in attack frequency leading to chronic migraine. Methods We assessed in rats the roles of dose and repeat administration of systemic isosorbide dinitrate (ISDN), a nitric oxide donor, on the occurrence and development of cephalic/face and extracephalic/hindpaw mechanical allodynia as a surrogate of migraine pain, and the effect of acute systemic sumatriptan and olcegepant and chronic systemic propranolol on these behavioral changes. Results A single high (H-ISDN) but not low (L-ISDN) dose of ISDN induces a reversible cephalic and extracephalic mechanical allodynia. However, with repeat administration, L-ISDN produces reversible cephalic but never extracephalic allodynia, whereas H-ISDN induces cephalic and extracephalic allodynia that are both potentiated. H-ISDN-induced cephalic allodynia thus gains persistency. Sumatriptan and olcegepant block single H-ISDN-induced behavioral changes, but only olcegepant reduces these acute changes when potentiated by repeat administration. Neither sumatriptan nor olcegepant prevent chronic cephalic hypersensitivity. Conversely, propranolol blocks repeat H-ISDN-induced chronic, but not acute, behavioral changes. Conclusions Repeated ISDN administration appears to be a naturalistic rat model for migraine progression, suitable for screening acute and preventive migraine therapies. It suggests frequent and severe migraine attacks associated with allodynia may be a risk factor for disease progression.


2012 ◽  
Vol 55 (2) ◽  
pp. 688-696 ◽  
Author(s):  
Sarthak Jain ◽  
Susan Tran ◽  
Mohamed A. M. El Gendy ◽  
Khosrow Kashfi ◽  
Paul Jurasz ◽  
...  

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