Analgesic effects of Marasmius androsaceus mycelia ethanol extract and possible mechanisms in mice
نویسندگان
چکیده
Marasmius androsaceus is a medicinal fungus mainly used to treat various forms of pain in China. This study investigated the analgesic effects of an ethanol extract of M. androsaceus (MAE) and its potential molecular mechanisms. Oral administration of MAE (50, 200, and 1000 mg/kg) had significant analgesic effects in an acid-induced writhing test, a formalin test, and a hot-plate test, with effectiveness similar to tramadol (the positive control drug). The autonomic activity test showed that MAE had no harmful effects on the central nervous system in mice. MAE resulted in significantly enhanced levels of noradrenalin and 5-hydroxytryptamine in serum but suppressed both of these neurotransmitters in the hypothalamus after 30 s of hot-plate stimulation. Co-administration with nimodipine (10 mg/kg; a Ca2+ channel blocker) strongly enhanced the analgesic effect in the hot-plate test compared to MAE alone. Moreover, MAE down-regulated the expression of calmodulin-dependent protein kinase II (CaMKII) in the hypothalamus after a 30-s thermal stimulus. These results suggested that the analgesic ability of MAE is related to the regulation of metabolism by monoamine neurotransmitters and Ca2+/CaMKII-mediated signaling, which can potentially aid the development of peripheral neuropathic pain treatments obtained from M. androsaceus.
منابع مشابه
Antinociceptive mechanisms of Rosmarinus officinalis extract in mice using writhing test
Rosemary (Rosmarinus officinalis) is a common household plant grows in many parts of the world, including Iran. Rosemary leaves are used in folk medicine as an antispasmodic, analgesic, diuretic and ntiepileptic agent. The objective of this study was to investigate the antinociceptive mechanisms of rosemary extract using a writhing test as a model of visceral pain. Possible antinociceptive mech...
متن کاملAnti-inflammatory and antinociceptive activities of Solenostemon monostachyus aerial part extract in mice
Objective: Solenostemon monostachyus is used in traditional medicine for the treatment of various ailments such as ulcer, hypertension, pains and inflammatory diseases. Evaluation of anti-inflammatory and analgesic activities of S. monostachyus aerial parts was carried out to ascertain its uses in traditional medicine. Materials and Methods: The aerial parts of S. monostachyus was cold extracte...
متن کاملبررسی تأثیر عصاره اتانولی شوید بر درد و بر بیدردی ناشی از مورفین در موش نر کوچک آزمایشگاهی
Background & Aims: Due to the side effects of chemical drugs and their expensive prices, nowadays medicinal plants are of great interest, and dill is one of these plants. The aim of the present study was evaluating analgesic effect of dill ethanol extract in male mice by using formalin test in the presence and absence of intravenous morphine. Materials & Methods: In this study, 28 mice ...
متن کاملAnalgesic effect of the aqueous and ethanolic extracts of clove
Objective: The beneficial effects of clove on toothache have been well documented. We have also previously shown the analgesic effects of clove essential oil. The present work was done to investigate the analgesic effects of the aqueous extract of clove using hot plate test. The possible role of opioid receptors in the analgesic effects of clove was also investigated using naloxone. Materials a...
متن کاملEffects of Papaver rhoeas Extract on the Tolerance Development to Analgesic Effects of Morphine in Mice
Previous studies have shown that the extract of Papaver rhoeas reduces morphine dependence, locomotor activity and reward. In present study, the effects of hydro-alcohol extract of Papaver Rhoeas on the tolerance to analgesic effects of morphine in mice have been investigated using tail flick method. Subcutaneous (s.c.) administration of morphine (1, 2, 5 and 10 mg/kg) induced analgesia. Howeve...
متن کامل