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103 The insulin/insulin-like growth factor (IGF) pathway promotes NSCs proliferation, differentiation, and survival

Stem cell factor (SCF) and its tyrosine kinase receptor C-kit signalling pathways are critical for epidermal melanocyte development during embryogenesis[17, 20], notch signalling pathways are essential in the maintenance of adult melanocyte stem cells, and thus for melanocyte homeostasis[20], endothelin 1 plays a role in the differentiation of melanocyte precursors, and micropthalmia-associated transcription factor (MITF) with its cAMP response element play a critical role in melanogenesis[25]

While the Wegovy clinical trials documented alopecia occurring more frequently than in placebo groups, the overall incidence was relatively low, and a direct causal relationship has not been definitively established

And a 150-pound person might have a generous fat layer on their stomach but very little on their arms

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