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).
Inflammation of Nerves: When nerves become chronically inflamed by an autoimmune reaction, the immune system mistakenly attacks the nerves as if it were a foreign organism. Vitamin Deficiencies: B-vitamins, including B-1, B-6, and B-12, along with Vitamin E and Niacin are crucial to nerve health.