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Neuropharmacological properties of Launaea resedifolia
Auzi, Abdu Razag A; Hawisa, Najat T; Sherif, Fathi M; Sarker, Satyajit D.
  • Auzi, Abdu Razag A; Elfateh University. Faculty of Pharmacy. Pharmacognosy Department. Tripoli. LY
  • Hawisa, Najat T; Elfateh University. Faculty of Pharmacy. Pharmacognosy Department. Tripoli. LY
  • Sherif, Fathi M; Elfateh University. Faculty of Pharmacy. Pharmacognosy Department. Tripoli. LY
  • Sarker, Satyajit D; University of Ulster. School of Biomedical Sciences. Northern Ireland. GB
Rev. bras. farmacogn ; 17(2): 160-165, abr.-jun. 2007. tab
Article in English | LILACS | ID: lil-456983
ABSTRACT
Launaea resedifolia (L.) Kuntze (family Asteraceae), synonym Scorzonera resedifolia L., is a medicinal plant used in the Libyan folkloric medicine mainly for the treatment of hepatic pains. However, there is no report on any pharmacological evaluation of L. resedifolia available to date. In this study, the neuropharmacological potential of the ethanol extract of this plant has been assessed in animal models. Launaea resedifolia extracts exhibited an inhibitory effect on the locomotor activity of mice in the open field test, an anti-nociceptive effect by increasing the hot plate reaction time in the hot plate test, and an anti-inflammatory activity in the carrageenan-induced paw oedema. Furthermore, a sedative effect was evident from the decrease in the onset of pentobarbitone sleeping time and increase in the duration of pentobarbitone sleeping time rats. The ethanol extract also demonstrated a significant decrease in the mortality rate induced by picrotoxin by about 66 percent, and a considerable reduction in the body weight of mice compared to the control groups.
RESUMO
Launaea resedifolia (L.) Kuntze (família Asteraceae), sinônimo Scorzonera resedifolia L., é uma planta medicinal utilizada na medicina popular da Líbia para o tratamento de problemas hepáticos. Todavia, não há relato de qualquer avaliação farmacológica de L. resedifolia disponível na literatura. Neste estudo, o potencial neurofarmacológico do extrato etanólico desta planta foi analisado em modelos animais. Os extratos de Launaea resedifolia exibiram um efeito inibitório na atividade locomotora de camundongos no teste de campo aberto, um efeito anti-nociceptivo pelo aumento do tempo de reação em placa quente no teste da placa quente e uma atividade anti-inflamatória no edema de pata induzido por carragenina. Além disso, um efeito sedativo foi evidente pela diminuição no início do tempo de sono barbitúrico e aumento na duração do tempo de sono barbitúrico em ratos. O extrato etanólico também demonstrou uma diminuição significativa na taxa de mortalidade induzida por picrotoxina em aproximadamente 66 por cento e uma redução considerável no peso corporal de camundongos comparada aos grupos controle.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Plants, Medicinal / Neuropharmacology / Plant Extracts / Asteraceae Type of study: Prognostic study Limits: Animals Language: English Journal: Rev. bras. farmacogn Journal subject: Pharmacy Year: 2007 Type: Article Affiliation country: Libya / United kingdom Institution/Affiliation country: Elfateh University/LY / University of Ulster/GB

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Full text: Available Index: LILACS (Americas) Main subject: Plants, Medicinal / Neuropharmacology / Plant Extracts / Asteraceae Type of study: Prognostic study Limits: Animals Language: English Journal: Rev. bras. farmacogn Journal subject: Pharmacy Year: 2007 Type: Article Affiliation country: Libya / United kingdom Institution/Affiliation country: Elfateh University/LY / University of Ulster/GB