Endothelium-Derived Factors Influence Differentiation of Fat-Derived Stromal Cells Post-Exercise in Subjects with Prediabetes.

Several human studies show positive signals, while research methods and sample sizes continue to develop.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Purpose: We investigated the effect of aerobic and resistance exercise on abdominal subcutaneous fat-derived stromal cells in middle-aged subjects with prediabetes, pre- and post-exercise to establish molecular mechanisms that drive the effect of exercise. Methods: Five subjects, aged between 40 and 60 years with a body mass index between 25 and 39.9 kg/m 2 and with prediabetes, were enrolled in a 12-week exercise intervention program. Biophysical parameters were assessed pre- and post-exercise. Stromal cells were obtained from subcutaneous abdominal fat and cultured for 2-3 weeks. The stromal cells were then analyzed for mRNA analysis pre- and post-exercise. This was followed up with in vitro experiments where commercially obtained human fat-derived mesenchymal stromal cells (MSCs) were exposed to adipogenic media, and conditioned media from human endothelial conditioned media (ECM) cells were added to note if ECM addition altered adipogenesis. Subsequently, MSC differentiation was monitored by reverse transcription-polymerase chain reaction (RT-PCR). Results: Post-exercise, subjects' cardiometabolic parameters improved. MSC obtained at post-exercise phase, from subcutaneous fat biopsies, on RT-PCR analysis, showed upregulation of antioxidant, mitochondrial, glucose transporter, and genes associated with osteogenesis compared with pre-exercise MSC mRNA. A concomitant increase

Evidence level

Several human studies show positive signals, while research methods and sample sizes continue to develop.

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