Xiao-xiao Li1,2,
Cui-fang Hao2 
,
Yuan-qi He3,
Hai-ning Liu3,
Xiao-na Li4,
For correspondence:- Cui-fang Hao Email: rmchao@yeah.net Tel:+865356691999
Accepted: 11 September 2017 Published: 31 October 2017
Citation: Li X, Hao C, He Y, Liu H, Li X, Effects of flavonoids extracted from the whole plant of Patrinia Villosa (Thunb) Juss in a rat model of chronic pelvic inflammation. Trop J Pharm Res 2017; 16(10):2395-2401 doi: 10.4314/tjpr.v16i10.12
© 2017 The authors.
This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited..
Purpose: To investigate the effects of total flavonoids (PLV) extracted from the whole plant of Patrinia Villosa (Thunb.) Juss (PTJ) in a rat model of chronic pelvic inflammation.
Methods: An orthogonal test design was employed to optimize the extraction conditions of PLV via reflux extraction by ethanol. Rats were randomly divided into control group, model group and PLV groups. An absorbable gelatin sponge with pathogens was inserted into the cervix of the rat to establish a pelvic inflammatory model. The PLV groups were orally administered PLV at doses of 25, 50 and 100 mg/kg for eight days. Enzyme-linked immunosorbent assay (ELISA) was used for the determination of inflammatory cytokines in rat serum and the culture supernatant of RAW264.7 cells. Real-time reverse transcription polymerase chain reaction (real-time PCR) was employed to determine mRNA levels.
Results: The optimum extraction conditions for PLV by orthogonal test were obtained: extraction time (120 min), ratio of liquid to raw material (20 mL/g) and ethanol concentration (50 %). By treating with PLV, the levels of TNF-α, IL-6 and IL-1β significantly decreased (p < 0.01), while IL-10 level significantly increased (p < 0.01) in the serum of chronic pelvic inflammatory rats and LPS-stimulated macrophages. In addition, a similar trend was observed in the mRNA levels of LPS-stimulated macrophages treated with PLV.
Conclusion: PLV showes significant anti-inflammatory effects on chronic pelvic inflammation. The potential mechanism is related to regulating the ex
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