• Mohsen Mazidi, Sara Baghban Taraghdari, Peyman Rezaee, Maryam Kamgar, Mohammad Reza Jomezadeh, Omid Akbarieh Hasani, Mohammad Soukhtanloo, Mahmoud Hosseini, Zahra Gholamnezhad, Hassan Rakhshandeh, Abdolreza Norouzy, Habibollah Esmaily, Michael Patterson, and Mohsen Nematy.
• J Complement Integr Med. 2014 Dec 1; 11 (4): 253-7.

BackgroundGhrelin is an orexigenic peptide which is secreted from stomach. Cannabis sativa is known as an orexigenic herb in Iranian traditional medicine. Little evidence is published about its effect on energy intake and its mechanism. In the current study, the possible effect of hydroalcoholic extract of C. sativa on appetite and ghrelin is evaluated.MethodsThirty male Wistar rats were randomly divided into five groups. Two control groups were selected, the first group received 0.5 mL water per day (vehicle group) and another group did not receive anything (control group). The other three groups were treated daily with 50, 100 or 150 mg/kg of C. sativa for 7 days, respectively. Daily energy intake of the rats was calculated for 10 days prior to the> intervention and for the 7 day intervention. To investigate changes in plasma ghrelin as a potential mechanism, an orexigenic dose (150 mg/kg) of C. sativa or distilled water (vehicle) was fed to two separate groups of six rats by gavage. Total ghrelin levels in plasma were measured for 3 h post-gavage.ResultsThere was no significant difference in energy intake between control and vehicle groups. Treatment with 100 and 150 mg/kg of the extract significantly increased energy intake vs the other groups (p<0.05). Total ghrelin levels were significantly elevated in the C. sativa group vs vehicle 30 and 60 min post-gavage.ConclusionsThis study showed that C. sativa had both positive and dose-related effects on appetite of rats. Future studies are warranted to evaluate the orexigenic effect of this plant in human.

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