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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Godin, Adriana M. Ferreira, Wallace C. Rocha, Leonardo Tadeu S. Ferreira, Raphael G. Paiva, André Luiz L. Merlo, Leonardo A. Nascimento, Elias B. Bastos, Leandro Francisco S. Coelho, Márcio M. |
| Description | Country affiliation: Brazil Author Affiliation: Godin AM ( Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, 31270-901, Belo Horizonte, MG, Brazil.) |
| Abstract | Although in vitro studies have shown that nicotinic acid inhibits some aspects of the inflammatory response, a reduced number of in vivo studies have investigated this activity. To the best of our knowledge, the effects induced by nicotinic acid in models of nociceptive and inflammatory pain are not known. Per os (p.o.) administration of nicotinic acid (250, 500 or 1000 mg/kg, -1 h) inhibited the first and the second phases of the nociceptive response induced by formalin in mice. Nicotinic acid (250 or 500 mg/kg, -1 and 3 h) also inhibited the mechanical allodynia induced by carrageenan in rats, a model of inflammatory pain. However, in a model of nociceptive pain, exposure of mice to a hot-plate, nicotinic acid was devoid of activity. In addition to inhibiting the nociceptive response in models of inflammatory pain, nicotinic acid (250 or 500 mg/kg, p.o., -1 and 3 h) inhibited paw edema induced by carrageenan in mice and rats. Picolinic acid (62.5 or 125 mg/kg, p.o., -1 h), a nicotinic acid isomer, inhibited both phases of the nociceptive response induced by formalin, but not paw edema induced by carrageenan in mice. The other nicotinic acid isomer, isonicotinic acid, was devoid of activity in these two models. In conclusion, our results represent the first demonstration of the activity of nicotinic acid in experimental models of nociceptive and inflammatory pain and also provide further support to its anti-inflammatory activity. It is unlikely that conversion to nicotinamide represents an important mechanism to explain the antinociceptive and anti-inflammatory activities of nicotinic acid. The demonstration of new activities of nicotinic acid, a drug that has already been approved for clinical use and presents a positive safety record, may contribute to raise the interest in conducting clinical trials to investigate its usefulness in the treatment of painful and inflammatory diseases. |
| File Format | HTM / HTML |
| ISSN | 00913057 |
| Issue Number | 3 |
| Volume Number | 101 |
| e-ISSN | 18735177 |
| Journal | Pharmacology Biochemistry and Behavior |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-05-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Behavioral Sciences Discipline Biochemistry Discipline Pharmacology Analgesics Pharmacology Anti-inflammatory Agents, Non-steroidal Niacin Pain Drug Therapy Animals Carrageenan Toxicity Disease Models, Animal Edema Etiology Female Humans Hyperalgesia Mice Motor Activity Drug Effects Pain Measurement Rats Rats, Wistar Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biological Psychiatry Behavioral Neuroscience Biochemistry Clinical Biochemistry Toxicology Pharmacology |
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