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Abstract Title:

Screening of microfilaricidal effects of plant extracts against Dirofilaria immitis.

Abstract Source:

Res Vet Sci. 2010 Feb;88(1):142-7. Epub 2009 Jun 4. PMID: 19500810

Abstract Author(s):

L T Merawin, A K Arifah, R A Sani, M N Somchit, A Zuraini, S Ganabadi, Z A Zakaria

Article Affiliation:

Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Abstract:

Canine dirofilariasis is a common tropical parasitic disease of companion animals, caused by infestation of Dirofilaria immitis filarids within the pulmonary arteries and extending into the right heart. Increased reports of adverse reactions elicited by current microfilaricidal agents against D. immitis such as neurological disorders, circulatory collapse and potential resistance against these agents, warrant the search for new agents in forms of plant extracts. The use of plant extracts in therapeutic medicine is commonly met with scepticism by the veterinary community, thus the lack of focus on its medical potential. This study evaluated the presence of microfilaricidal activities of the aqueous extracts of Zingiber officinale, Andrographis paniculata and Tinospora crispa Miers on D. immitisin vitro at different concentrations; 10mg/ml, 1mg/ml, 100 microg/ml, 10 microg/ml and 1 microg/ml within 24h, by evaluation of relative microfilarial motility as a measure of microfilaricidal activity. All extracts showed microfilaricidal activity with Z. officinale exhibiting the strongest activity overall, followed by A. paniculata and T. crispa Miers. It is speculated that the microfilaricidal mechanism exhibited by these extracts is via spastic paralysis based upon direct observation of the microfilarial motility.

Study Type : In Vitro Study

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Sayer Ji
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