数据日期 2026-10-29 · 生成时间 2026-10-29 06:03
研究问题
Accordingly, mitochondrial mass, the NRF2-dependent antioxidant response, and the glycolytic shift that accompanies mitochondrial insufficiency provide accessible readouts of whether exogenous mitochondria act on the aged ovary through the intended mechanism.
方法
This study used thirty-five female Wistar Albino rats, aged 8 and 15 months, with approval from the Animal Experiments Local Ethics Committee of Kocaeli University (Approval No: KOÜ HADYEK 6/4-2022).；Body weight at the start of the experiment was 218 ± 12.83 g for young rats and 254 ± 14.77 g for old rats.；Animals were bred and housed in-house at the Kocaeli University Experimental Medicine Research and Application Unit (DETAB), where all experimental procedures were also carried out; as animals were not transported from an external source, no acclimatization period was required.；All animals were experimentally naïve and had not undergone any prior procedures, and only clinically healthy females, free of visible coat or structural abnormalities, were selected for the study.
核心结论
Approximately 35% of the encapsulated protein was released within the first hour, followed by cumulative release values of approximately 61%, 83%, and 95% at 2, 3, and 12 h, respectively.；Protein release reached completion (≈100%) by 24 h, indicating that the alginate capsules provided a gradual, extended release rather than an immediate burst release of mitochondria-associated proteins.；Compared with the young control group, the old control group exhibited significantly lower expression of Amhr2 and Fshr (p = 0.005 and p < 0.001, respectively). ‖ 结论：The present findings indicate that localized delivery of alginate-encapsulated MSC-derived mitochondria may provide an effective cell-free approach for improving surrogate markers of ovarian function during aging.
局限
Several limitations should be considered when interpreting these findings.；The inclusion of an empty-capsule group excludes a carrier-mediated effect, but the contribution of mitochondria-derived soluble components acting through paracrine mechanisms cannot be formally separated from that of the intact organelles, and this distinction will require labeled-organelle tracking or a heat-inactivated mitochondrial control in future work.；Finally, outcomes were evaluated at a single time point, 14 days after administration, and no functional reproductive endpoint such as mating outcome or oocyte yield and quality was assessed; the durability and reproductive relevance of the observed changes…
对本项目的价值
★★★☆☆ 衰弱/肌少症是少有的已有监管认可终点的老年综合征，是临床转化的最短路径。命中核心 干细胞；最大样本量约 7。
全文来源
PMC JATS 全文（正文 49,339 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：Peri-Ovarian Mitochondrial Administration Improves Surrogate Markers of Ovarian Function in Aged Rats: Free Versus Alginate-Encapsulated Mesenchymal Stromal Cell-Derived Mitochondria.
- 期刊与标识：Biomedicines · PMID 42940200 · DOI 10.3390/biomedicines14102394**
B 级证据分级：B 级（同行评议临床前研究，主要为动物模型）
本文核心结论来自动物模型或体外细胞学，属临床前证据，不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义，与人类临床结局之间仍有距离。
关于本文的文献来源：本站依据 IMA 知识库「五刊监控·深度文献卡片」撰写，依据已获取的期刊全文（方法、样本量与结论已回到原文核对）；未能获取全文的同批条目另行标注「摘要级」，全程未做任何数值推算补全。