Effect of chinese traditional herb Epimedium grandiflorum C.Morren and its extract Icariin on osteoarthritis via suppressing NF-kB pathway.
Indian J Exp Biol
;
2013 Apr; 51(4): 313-321
Article
in English
| IMSEAR
| ID: sea-147597
ABSTRACT
Osteoarthritis (OA), which is also called degenerative arthritis, is the leading cause of disabilities in the old people. The Chinese traditional herb Epimedium grandiflorum had long been found to attenuate osteoarthritis process, but the detailed mechanism was not clear. To study the mechanisms of E. grandiflorum in the treatment of osteoarthritis, rabbit osteoarthritis model combined with D-galactose was used. After different treatments for 10 weeks, cartilage sections were analyzed by immunohistochemistry for uPA, uPAR and PAI expression level. E. grandiflorum could significantly attenuate OA condition and decrease uPA, uPAR and PAI expression. The extract of E. grandiflorum, icariin also had a similar effect when compared with E. grandiflorum treatment alone. Rabbit chondrocytes were further isolated to be stimulated by TNFα combined with different reagents treatment. Here, icariin treatment significantly reduced nuclear factor kappa B NF-B (P65) activity, decreased uPA expression level and increased IBα protein level. The results indicated that E. grandiflorum and its extract icariin could attenuate OA condition, reduce the expression of uPA and uPAR and increase PAI in experimental rabbit model and this effect may be conducted by suppressing NF-kB activity by increasing IkBα level.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Osteoarthritis
/
Rabbits
/
Flavonoids
/
Female
/
Male
/
Drugs, Chinese Herbal
/
Immunohistochemistry
/
Urokinase-Type Plasminogen Activator
/
Cartilage
/
NF-kappa B
Type of study:
Diagnostic study
/
Prognostic study
Language:
English
Journal:
Indian J Exp Biol
Year:
2013
Type:
Article
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