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    ASIA unversity > 資訊學院 > 光電與通訊學系 > 期刊論文 >  Item 310904400/111720


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/111720


    Title: Manual acupuncture relieves bile acid-induced itch in mice: the role of microglia and TNF-α
    Authors: Lee, Yu-Chen;Lee, Yu-Chen;Chia-Hsien, L;Lin, Chia-Hsien;Hung, Shih-Ya;Hung, Shih-Ya;Chun, Hsin-Yi;Chung, Hsin-Yi;Luo, Sih-Ting;Luo, Sih-Ting;MacDona, Iona;MacDonald, Iona;Chu, Yu-Ting;Chu, Yu-Ting;Lin, Pei-Lin;Lin, Pei-Lin;陳易宏;Chen, Yi-Hung;*
    Contributors: 光電與通訊學系
    Date: 2018-06
    Issue Date: 2018-12-25 10:57:26 (UTC+8)
    Abstract: Pruritus, or itch, is a frequent complaint amongst patients with cholestatic hepatobiliary disease and is difficult to manage, with many patients refractory to currently available antipruritic treatments. In this study, we examined whether manual acupuncture (MA) at particular acupoints represses deoxycholic acid (DCA)-induced scratching behavior and microglial activation and compared these effects with those induced by another pruritogen, 5'-guanidinonaltrindole (GNTI, a kappa opioid receptor antagonist). MA at Hegu (LI4) and Quchi (LI11) acupoints significantly attenuated DCA- and GNTI-induced scratching, whereas no such effects were observed at the bilateral Zusanli acupoints (ST36). Interestingly, GNTI-induced scratching was reduced similarly by both MA and electroacupuncture (EA) at the LI4 and LI11 acupoints. MA at non-acupoints did not affect scratching behavior. Intraperitoneal injection of minocycline (a microglial inhibitor) reduced GNTI- and DCA-induced scratching behavior. In Western blot analysis, subcutaneous DCA injection to the back of the neck increased spinal cord expression of ionized calcium-binding adapter molecule 1 (Iba1) and tumor necrosis factor-alpha (TNF-α) as compared with saline injection, while MA at LI4 and LI11 reduced these DCA-induced changes. Immunofluorescence confocal microcopy revealed that DCA-induced Iba1-positive cells with thicker processes emanated from the enlarged cell bodies, while this effect was attenuated by pretreatment with MA. It is concluded that microglia and TNF-α play important roles in the itching sensation and MA reduces DCA-induced scratching behavior by alleviating spinal microglial activation. MA may be an effective treatment for cholestatic pruritus.
    Relation: International Journal of Medical Sciences
    Appears in Collections:[光電與通訊學系] 期刊論文

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