The legal marijuana market in Colorado has created a bonanza for âgreen entrepreneursâ and tax collectors in the state. At the same time, it has put pressure on budgets in neighboring states. Post TV takes you to rural Colorado to experience how legal marijuana is affecting communities.
A Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease), answered. Melanocytes are the cells that are responsible for producing the pigment melanin, which gives color to skin and hair. Everyone has melanocytes, but people with dark skin produce more melanin than those with lighter skin do.
The MSH binds to a receptor on melanocyte skin cells called MC1R and makes these cells produce melanin, which darkens the skin. But researchers have been stumped by how sex hormones can enhance or lessen skin pigmentation, because neither estrogen nor progesterone works through MC1R.