That natural hormone participates in pigmentation by activating melanocortin receptors and increasing the production of melanin
On the other hand, at higher concentrations of guarana (12.5 and 50 mg/mL), the majority of the cells started to aggregate into clusters and shrunk (arrows, Figures 2(a)(3) and 2(a)(4))
Reperfusion Assessment Successful Reperfusion: rCBF returning to 70% of baseline within 2 h after ET-1 administration
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