Efficacy and safety of Curcuma longa essential oil to inactivate hydatid cyst protoscoleces

Mahmoudvand, Hossein and Pakravanan, Mahbobeh and Aflatoonian, Mohammad Reza and Khalaf, Amal Khudair and Niazi, Massumeh and Mirbadie, Seyyed Reza and Tavakoli Kareshk, Amir and Khatami, Mehrdad (2019) Efficacy and safety of Curcuma longa essential oil to inactivate hydatid cyst protoscoleces. BMC Complementary and Alternative Medicine, 19 (187).

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Abstract

Background: One of the most important ways to cure hydatid cysts is surgery. Today, available chemical drugs have shown severe complications during hydatid cyst surgery. Here we investigated theefficacy and safety of Curcuma longa (C. longa) essential oil (CLEO) against hydatid cysts protoscoleces. Methods: Here, the collected protoscoleces from fertile hydatid cysts were exposed to different concentrations of the CLEO (50–200 μl/mL) for 5–30 min in vitro and ex vivo. In addition, male NIH mice (48 mice) were applied to examine the safety of CLEO. Results: All protoscoleces were completely killed in 5th min of treatment to the doses of 200 μl /mL of CLEO. On the other hand, in the 10th min of treatment, CLEO entirely killed 100% of protoscoleces at the dose of 100 μL/mL. Other doses of CLEO, but, revealed a postponed activity. Although CLEO at the doses of 50, and 100 μL/mL exhibited no similar effect in the ex vivo analysis; but, at the dose of 200 μL/mL and an exposure time of 5 min, approximately 100% of protoscoleces were destroyed into the cyst. We found that after intra-peritoneal injection of the CLEO for 14 days, although blood and biochemical parameters were changed; but there was no significant difference in comparison with the control group (p > 0.05). Conclusion: This research demonstrated that C. longa revealed the promising scolicidal effects against protoscoleces in vitro and in vivo, of course, after additional tests; it might be considered as an herbal scolicidal drug in order to decrease the threat of discharge of protoscoleces through hydatid cyst surgery. Nevertheless, supplementary studies will be desired to prove the current findings by examination the essential oil in a clinical setting. Keywords: GC/MS, Cystic echinococcosis, Echinococcus granulosus, Protoscoleces, Turmeric

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