Sedative and muscle relaxant activities of diterpenoids from Phlomidoschema parviflorum

Farooq, Umar; Khan, Ajmal; Hadda, Taïbi Ben; Naz, Sadia; Ibrar, Aliya; Jehan, Noor; Cerón‐Carrasco, José P.; Haan, Helena den; Peña‐García, Jorge; Pérez‐Sánchez, Horacio; Khan, Haroon; Ramadan, Mohamed Fawzy; Abu-Izneid, Tareq; Bawazeer, Saud

doi:10.1016/j.bjp.2017.07.003

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…Mice submitted to FT and HP test, except for morphine-treated groups, were subjected to open field testing 5 min prior to exposure to noxious stimuli to verify possible impairment of consciousness or mobility. Animals were exposed for 5 min on two successive days prior to the test for habituation (Rauf et al, 2017).…”

Section: Methodsmentioning

confidence: 99%

Chemical Composition, Toxicity, Antinociceptive, and Anti-Inflammatory Activity of Dry Aqueous Extract of Varronia multispicata (Cham.) Borhidi (Cordiaceae) Leaves

et al. 2019

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Varronia multispicata (Cham.) Borhidi (Cordiaceae), an herbaceous plant distributed in tropical and subtropical regions is native of Brazil and widely used in folk medicine to treat respiratory and digestive diseases, inflammation, and some types of infections. Thus, this study aimed to investigate acute oral toxicity, antinociceptive, and anti-inflammatory activities of dry aqueous extract of V. multispicata (AEVm) and to identify its compounds. Extract was obtained by lyophilized leaf infusion and its composition was analyzed by ultra-performance liquid chromatography-high resolution mass spectrometry (LC-MS). Acute oral toxicity was evaluated in female rats treated with AEVm (2,000 mg/kg) in a single oral dose. Mortality, body weight changes, feed and water intake, organ weights, histological and biochemical parameters were screened for 14 days. Antinociceptive activity was evaluated by writhing (WT), formalin (FT), and hot plate (HP) tests in male mice while anti-inflammatory activity was performed by carrageenan (CPE) and dextran (DPE)-induced paw edema tests and carrageenan-induced peritonitis (CP) test in male rats. Additionally, spontaneous open-field (OF) locomotion was evaluated. LC-MS analysis revealed the presence of flavonoids with biological activity. In toxicity evaluation, extract did not cause deaths in dose of 2,000 mg/kg, and there were no significant behavioral or biochemical alterations. Additionally, evidence of hepatoprotective and antioxidant activity was observed. In pharmacological evaluation AEVm showed dose-dependent antinociceptive activity in WT, with a median effective dose of 146.89 mg/kg, which showed selectivity by inflammatory base processes (FT first phase; p < 0.001), showing no activity in neuropathic nociception components (FT second phase and HP) or about consciousness and locomotion in OF. AEVm also showed significant anti-inflammatory activity, inhibiting CPE (p < 0.001) and cell migration (p < 0.05) and nitric oxide (NO) production (p < 0,01) in CP test. These data demonstrate that AEVm has low oral toxicity—with evidence of hepatoprotective and antioxidant properties—antinociceptive and anti-inflammatory activity, supporting V. multispicata traditional use, possibly related to flavonoids present in its constitution.

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Section: Methodsmentioning

confidence: 99%