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small RNA molecule regulating gene expression and hair follicle development

miR-21 is a type of microRNA, which are small molecules that help regulate gene expression in cells. It is known to play a role in various biological processes, including cell growth, apoptosis (programmed cell death), and differentiation. In the context of hair and alopecia, miR-21 has been implicated in the regulation of hair follicle development and cycling, and its dysregulation may contribute to hair loss conditions.

Related Terms

• miR-214
• miR-125b
• miR-22
• miR-221
• miR-222
• miR-100
• miR-155
• miR-203