According to the American Association of Medical Assistants, the average pay for a certified medical assistant (CMA) is $27,951, with experienced CMAs earning over $38,000 per â¦ year. That is Â£19,361.40 but with experience it is Â£26,326.35. and that is good:).
Causes of Linea Nigra. Pregnancy hormones are responsible for many skin changes during pregnancy, including linea nigra. Increased melanocyte stimulating hormone can cause darker nipples and areolas, as well as freckles. Linea nigra is not a painful condition and poses no threat to you or your baby. There is no physical reason for the line to appear other than indicating that the baby is coming.
There are no melanocytes in the substantia nigra. The melanin in the substantia nigra is a byproduct of dopamine metabolism, because dopamine is synthesized and utilized in the SN and a form of melanin is one of the metabolites of this process.