The stereological investigation of conditioned medium originated from human adipose tissue-derived mesenchymal stem cells and platelet-rich plasma effects on polycystic ovary syndrome in a rat model.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• 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)

Platelet-rich plasma (PRP) and conditioned medium (CM) originating from human adipose tissue mesenchymal stem cells (ATMSCs) as two enriched sources of growth factors have a potential impact on tissue repair. This investigation aimed to investigate the effects of PRP and CM on ovarian structures in letrozole-induced polycystic ovarian syndrome (PCOS) in female rats through the stereological methods. To obtain PRP, blood samples from Wistar rats were collected in citrate tubes, centrifuged (400g, 10 min) to separate components. Plasma+Buffy coat was recentrifuged (800g, 10 min); Platelet-poor-plasma (PPP) discarded, PRP (lower layer) obtained and stored at - 20°C. To attain the mentioned mesenchymal CM, first, adipose tissue was collected from liposuction samples by collagenase digestion and cultured in DMEM/FBS. To approve the isolation of ATMSCs, the flow cytometry method, based on the expression status of CD44, CD90, CD34 and CD45 markers, was carried out. ATMSCs were then grown in serum-free DMEM, and supernatant was centrifuged and stored. Forty female Wistar rats were allocated into five groups (Control, negative control (letrozole [LTZ]), letrozole and PRP [LTZ-PRP], letrozole and CM [LTZ-CM] and letrozole and PRP + CM [LTZ-PRP + CM] groups). The Control group received normal saline (0.9% NaCl, 200 μl) orally. In the negative control, PCOS was induced by letrozole (1 mg/k

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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