melanotic peripheral nerve sheath tumor Malignant (MMNST) Malignant peripheral nerve sheath tumor:

As a selective substrate site-targeting inhibitor of nicotinamide N-methyltransferase (NNMT) the cytosolic enzyme responsible for the methylation of nicotinamide using S-adenosylmethionine (SAM) as a methyl donor 5-Amino-1MQ is studied as a tool compound for investigating NNMT enzyme activity, NAD salvage pathway interactions, and methylation pathway dynamics in controlled in-vitro experimental systems

doi: 10.1186/2050-2974-2-8, 129 SalamehT

At this point the hair will cease to have live cells present and may also be known as club hair, due to the club shaped appearance of the root as it prepares to be shed from the scalp

J Int Soc Sports Nutr 18(1):13