Pembaruan sel punca membangun otot yang lebih besar pada tikus tua

Para peneliti telah menunjukkan bahwa meremajakan sel punca otot dari tikus tua menyebabkan pertumbuhan otot yang lebih besar dan pemulihan yang lebih baik setelah cedera. Pendekatan ini suatu hari nanti dapat membantu orang yang lebih tua mendapatkan kembali kekuatan dan mobilitas. Eksperimen menunjukkan manfaat yang jelas pada fungsi kaki dan perbaikan jaringan.

Ilmuwan di Duke University mengekstrak sel punca otot dari tikus tua, melengkapinya dengan lipid spesifik di laboratorium, dan kemudian menyuntikkan sel-sel yang telah dirawat tersebut kembali ke otot yang cedera pada tikus tua lainnya. Sel-sel yang telah dirawat tersebut menghasilkan serat otot baru yang 45 persen lebih besar daripada serat otot dari sel yang tidak dirawat, dan tikus-tikus tersebut menunjukkan kinerja yang lebih baik dalam tes treadmill dan mobilitas dalam beberapa hari.

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