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논문 기본 정보

자료유형
학술저널
저자정보
Yasuhiro Shiga (Chiba University) Go Kubota (Chiba University) Sumihisa Orita (Chiba University) Kazuhide Inage (Chiba University) Hiroto Kamoda (Chiba University) Masaomi Yamashita (Chiba University) Toru Iseki (Chiba University) Michihiro Ito (Chiba University) Kazuyo Yamauchi (Chiba University) Yawara Eguchi (Chiba University) Takeshi Sainoh (Chiba University) Jun Sato (Chiba University) Kazuki Fujimoto (Chiba University) Koki Abe (Chiba University) Hirohito Kanamoto (Chiba University) Masahiro Inoue (Chiba University) Hideyuki Kinoshita (Chiba Universityy) Takeo Furuya (Chiba University) Masao Koda (Chiba University) Yasuchika Aoki (Eastern Chiba Medical Center) Tomoaki Toyone (Showa University) Kazuhisa Takahashi (Chiba University) Seiji Ohtori (Chiba University)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.11 No.3
발행연도
2017.1
수록면
329 - 336 (8page)

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Study Design: Controlled laboratory study. Purpose: This study aimed to evaluate the efficacy of platelet-rich plasma (PRP) stored at room temperature (RT), frozen, or after freeze-drying. Overview of Literature: PRP enriches tissue repair and regeneration, and is a novel treatment option for musculoskeletal pathologies. However, whether biological activity is preserved during PRP storage remains uncertain. Methods: PRP was prepared from blood of 12 healthy human volunteers (200 mL/person) and stored using three methods: PRP was stored at RT with shaking, PRP was frozen and stored at –80°C, or PRP was freeze-dried and stored at RT. Platelet counts and growth factor content were examined immediately after preparation, as well as 2, 4, and 8 weeks after storage. Platelet activation rate was quantified by flow cytometry. Results: Platelet counts were impossible to determine in many RT samples after 2 weeks, but they remained at constant levels in frozen and freeze-dried samples, even after 8 weeks of storage. Flow cytometry showed approximately 80% activation of the platelets regardless of storage conditions. Almost no growth factors were detected in the RT samples after 8 weeks, while low but significant expression was detected in the frozen and freeze-dried PRP. Over time, the mean relative concentrations of various growth factors decreased significantly or disappeared in the RT group. In the frozen group, levels were maintained for 4 weeks, but decreased significantly by 8 weeks (p <0.05). The freeze-dried group maintained baseline levels of growth factors for the entire 8-week duration. Conclusions: Freeze-drying enables PRP storage while maintaining bioactivity and efficacy for extended periods.

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