High-molecular-weight Hyaluronan Administration Inhibits Bone Resorption and Promotes Bone Formation in Young-age Osteoporosis Rats.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-01 Epub Date: 2024-05-28 DOI:10.1369/00221554241255724

Toshiyuki Kikuchi, Kazuhiko Udagawa, Yoshihiro Sasazaki

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Abstract

Osteoporosis poses a significant global health concern, affecting both the elderly and young individuals, including athletes. Despite the development of numerous antiosteoporotic drugs, addressing the unique needs of young osteoporosis patients remains challenging. This study focuses on young rats subjected to ovariectomy (OVX) to explore the impact of high-molecular-weight hyaluronan (HA) on preventing OVX-induced osteoporosis. Twenty-four rats underwent OVX, while 12 underwent sham procedures (sham control group). Among the OVX rats, half received subcutaneous injections of HA (MW: 2700 kDa) at 10 mg/kg/week into their backs (OVX-HA group), whereas the other half received saline injections (0.5 ml/week) at the same site (OVX-saline group). OVX-HA group exhibited significantly higher percentages of osteoclast surface (Oc. S/BS), osteoblast surface per bone surface (Ob. S/BS), and bone volume/tissue volume (BV/TV) compared with OVX-saline group at the same age. The proportions of Ob. S/BS and BV/TV in the OVX-HA group closely resembled those of the sham control group, whereas the proportion of Oc. S/BS in the OVX-HA group was notably higher than that in the sham control group. In summary, the administration of HA significantly mitigated bone resorption and enhanced bone formation, suggesting a crucial role for HA in the treatment of young adult osteoporosis.

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给幼年骨质疏松症大鼠注射高分子量透明质酸可抑制骨吸收并促进骨形成

骨质疏松症是全球关注的重大健康问题，既影响老年人，也影响包括运动员在内的年轻人。尽管抗骨质疏松症药物层出不穷，但要满足年轻骨质疏松症患者的独特需求仍具有挑战性。本研究以接受卵巢切除术（OVX）的年轻大鼠为研究对象，探讨高分子量透明质酸（HA）对预防OVX诱导的骨质疏松症的影响。24只大鼠接受了卵巢切除术，12只大鼠接受了假手术（假对照组）。在卵巢切除大鼠中，一半在背部皮下注射 HA（分子量：2700 kDa），剂量为 10 毫克/千克/周（OVX-HA 组），另一半在同一部位注射生理盐水（0.5 毫升/周）（OVX-生理盐水组）。与同年龄组相比，OVX-HA 组的破骨细胞表面百分比（Oc. S/BS）、每骨表面的成骨细胞表面百分比（Ob. S/BS）和骨体积/组织体积百分比（BV/TV）均明显高于 OVX-生理盐水组。OVX组的Ob.S/BS和BV/TV的比例与假对照组非常相似，而OVX-HA组的Oc.S/BS的比例明显高于假对照组。总之，服用HA能明显缓解骨吸收并促进骨形成，这表明HA在治疗青壮年骨质疏松症中发挥着重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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