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Abstract Title:

Pain Controlling and Cytokine-regulating Effects of Lyprinol, a Lipid Extract of Perna Canaliculus, in a Rat Adjuvant-induced Arthritis Model.

Abstract Source:

Evid Based Complement Alternat Med. 2009 Jun;6(2):239-45. Epub 2007 Sep 26. PMID: 18955235

Abstract Author(s):

Chi-Ho Lee, John Hon-Kei Lum, Curtise Kin-Cheung Ng, Janice McKay, Yoki Kwok-Chu Butt, Man-Sau Wong, Samuel Chun-Lap Lo

Article Affiliation:

Dept. of Applied Biology&Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China. bcsamlo@inet.polyu.edu.hk.

Abstract:

Using an adjuvant-induced arthritis rat model, we investigated the effects of a lipid extract of Perna canaliculus (Lyprinol(R)) on pain. Radiological examinations, as well as levels of pro- and anti-inflammatory (AI) cytokines, were measured aiming to provide independent objective data to the pain controlling investigation. We confirmed the ability of Lyprinol(R) to control pain at the initial phase of its administration; with similar efficacy to that observed with Naproxen. The pain scores slowly increased again in the group of rats treated with Lyprinol(R) after day 9-14. The Naproxen-treated rats remained pain-free while treated. Both Naproxen and Lyprinol(R) decreased the levels of the pro-inflammatory cytokines TNF-alpha and IFN-gamma, and increased that of IL-10. Extra-virgin olive oil was ineffective on cytokine secretion. Rats treated with Lyprinol(R) were apparently cured after 1 year. This study confirms the AI efficacy of this lipid extract of P. canaliculus, its initial analgesic effect, its perfect tolerance and its long-term healing properties.

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Sayer Ji
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