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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/110719

    Title: Increased expression of type 1 cannabinoid (CB1) receptor among patients with rotator cuff lesions and shoulder stiffness
    Authors: Kuo, Shu-Jui;Feng-Sheng, W;Wang, Feng-Sheng;Ko, Jih-Yang;湯智昕;Tang, Chih-Hsin;Siu, Ka-Kit;Hsu, Ya-Hung;Ts, Tsai-Chen;Tsai, Tsai-Chen
    Contributors: 生物科技學系
    Date: 2017-11
    Issue Date: 2018-04-03 09:14:07 (UTC+8)
    Abstract: Background: Shoulder stiffness is a disease manifested by pain, limited range of motion, and functional
    disability. The inflammatory and fibrosis processes play a substantial role in the pathogenesis of shoulder
    stiffness. The CB1 receptor has been recognized to mediate the processes of pathologic fibrosis. This study
    investigated the role of the CB1 pathway in pathogenesis of rotator cuff lesions with shoulder stiffness.
    Methods: All of the patients undergoing repair surgery for rotator cuff lesions were recruited and subcategorized
    into subjects with and without shoulder stiffness. Reverse transcription-polymerase chain reaction
    assay was used to evaluate the expression level of CB1 and interleukin 1β (IL-1β) in the subacromial bursae,
    and enzyme-linked immunosorbent assay was used to measure the concentration of CB1 and IL-1β in the
    subacromial fluid. Tenocytes treated with CB1 agonists and antagonists were also studied for the relationship
    of CB1 and the inflammatory cytokine IL-1β.
    Results: The patients with shoulder stiffness had higher messenger RNA (mRNA) expression (P = .040)
    and immunohistochemistry staining (P < .001) of CB1 in the subacromial bursa and higher CB1 concentration
    in the subacromial fluid (P = .008). Tenocytes treated with the CB1 agonist WIN 55,212-2 and antagonist
    AM251 showed increased expression of IL-1β mRNA (P = .049) and suppressed expression of IL-1β mRNA
    (P = .001), respectively.
    Relation: Journal of shoulder and elbow surgery
    Appears in Collections:[生物科技學系] 期刊論文

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