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).
Vitamin B-1. Vitamin B-1, also known as thiamin, is used by your body in a variety of ways, including for the synthesis of DNA and RNA in cells. According to the Linus Pauling Institute, a deficiency in thiamin can cause nerve damage, resulting in muscle pain and weakness.