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Abstract Title:

Cross-linked bromelain inhibits lipopolysaccharide-induced cytokine production involving cellular signaling suppression in rats.

Abstract Source:

J Agric Food Chem. 2006 Mar 22;54(6):2193-8. PMID: 16536595

Abstract Author(s):

Rolis Chien-Wei Hou, Yuh-Shuen Chen, Jing-Rong Huang, Kee-Ching G Jeng

Article Affiliation:

Jen-Teh Junior College of Medical and Nursing Management, Miaoli, Taiwan, Republic of China.

Abstract:

Bromelain has been reported to have anti-inflammatory and immunomodulatory effects. It has been cross-linked with organic acids and polysaccharides by gamma irradiation. The cross-linked (CL)-bromelain preparation resisted an acidic environment of pH 3 for 2 h and preserved 80% of its enzyme activity. Pretreatment of rats with CL-bromelain intragastrically for 7 days significantly reduced serum cytokine production induced by injected i.p. with 2.5 mg/kg of lipopolysaccharide (LPS). Bromelain significantly reduced serum glutamate-oxalacetate transaminase induced by LPS. The anti-inflammatory effect of CL-bromelain was correlated with reduced LPS-induced NF-kappaB activity and cyclooxygenase 2 (COX-2) mRNA expression in rat livers. In addition, CL-bromelain dose-dependently inhibited LPS-induced COX-2 mRNA and prostaglandin E2 (PGE2) in BV-2 microglial cells. CL-Bromelain also suppressed the LPS-activated extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (MAPK). In conclusion, the anti-inflammatory effects of the CL-bromelain preparation in vivo and in vitro suggest its therapeutic potentials.

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Sayer Ji
Founder of GreenMedInfo.com

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Easy Turmeric recipes + The Dark Side of Wheat

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