Type 4 Waardenburg syndrome (also called Waardenburg-Shah syndrome) is characterized by symptoms of Hirschsprung's disease in addition to the classic features of hearing loss and pigmentation abnormalities.
[Effects of a vitamin B complex on functional recovery after nerve injury (author's transl)]. Hasegawa K, Mikuni N, Sakai Y. Functional recovery after nerve crushing was investigated in the following manner: Under pentobarbital anesthesia the sciatic nerve of the rat was crushed at the level of the hip (proximal crush) or the thigh (distal crush).
Vitamins B-1, B-3 and folate are important for a properly functioning nervous system, according to Colon Cancer Resource, which is run by the Cancer Information Center, LLC. When people have tinnitus, the acoustic nerve transmits fake impulses of sound that is not there to the brain.