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Dihydroxy-isosteviol methyl ester of Pulsatilla nigricans extract reduces arsenic-induced DNA damage in testis cells of male mice: its toxicity, drug-DNA interaction and signaling cascades

Comments by The Homeopathic College: “A methyl ester of the homeopathic remedy Pulsatilla nigricans has shown promise in helping mitigate DNA damage done by arsenic induced reproductive poisoning! Good news for homeopathy!”

 

Originally published in the Journal of Chinese Integrative Medicine: Volume 10, 2012   Issue 12

1. Asmita Samadder (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
2. Jayeeta Das (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
3. Sreemanti Das (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
4. Durba Das (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
5. Arnab De (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
6. Kakali Bhadra (Entomology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )
7. Anisur Rahman Khuda-Bukhsh (Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India )

OBJECTIVE: To evaluate the ameliorative efficacy of dihydroxy-isosteviol methyl ester (DIME) of Pulsatilla nigricans extract in arsenic-induced DNA damage in testis cells of mice.

METHODS: The mice were treated with sodium arsenite (SA) solution intragastrically at a dose of 20 mg/kg per day and examined at 30, 60, and 90 d after treatment. We divided SA-intoxicated mice into two sub-groups: one fed with DIME at a dose of 35 mg/kg and the other with 85% alcohol. We analyzed the expressions of apoptotic signal proteins like CYP1A1, p53 and caspase 3, ascertained the level of cellular and DNA damage and estimated the level of testicular-toxicity biomarkers. We studied the interaction of DIME with calf thymus DNA as target through circular dichroism spectra and melting temperature profiles.

RESULTS: We observed an elevation in all apoptotic and toxicity biomarkers leading to cellular and DNA damage in the SA-intoxicated mice which showed significant inhibition or reversal on administration of DIME. Results also showed that DIME interacted with DNA, bringing in discernible changes in structure and conformation.

CONCLUSION: DIME has potentials for therapeutic use in amelioration of arsenic-induced reproductive toxicity. Read more

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