Shimane Journal of Medical Science

Shimane University Faculty of Medicine
ISSN :0386-5959(冊子体)
ISSN :2433-2410(オンライン)

クリエイティブ・コモンズ・ライセンス
これらの論文は クリエイティブ・コモンズ 表示 - 非営利 - 改変禁止 4.0 国際 ライセンスの下に提供されています。
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Shimane Journal of Medical Science 40 1-2
2023-06 発行

Quantitative Analysis of Extracellular Matrix Changes: Glycosaminoglycans, Collagen, and Elastin in Degenerated Ligamentum Flavum in Lumbar Spinal Canal Stenosis

宮地 葵
秋保 美月
真子 卓也
永野 聖
ファイル
内容記述(抄録等)
Qualitative changes in the extracellular matrix have been reported in thickened ligamentum flavum (LF) in lumbar spinal canal stenosis (LSCS); however, no detailed quantitative reports are available to date. Degenerated and undegenerated LF were collected from patients who underwent decompression surgery for LSCS and lumbar disc herniation, respectively. Three cylindrical samples of 2.5 mm diameter were cut from one LF specimen, completely solubilized, and quantified glycosaminoglycan (GAG), collagen (COL), and elastin. The amounts of GAG, COL, and elastin in the LSCS group were significantly higher than those in the control group. Although the GAG was originally present only in trace amounts, GAG proportion, standardized by dry weight, was the highest increase rate. Besides component analysis, histologic analysis showed intraligamentous chondrometaplasia in the caudal portion of the degenerated LF. Increased GAG in LF may be a new therapeutic target in LSCS.
DOI
権利関係(リンク)
権利関係
Faculty of Medicine, Shimane University