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 B12 Deficiency and its Neurological Consequences. B complex vitamins are important for various functions of the human body. Be it energy production, body defense mechanisms, or red blood cell formation, the B group vitamins play pivotal roles and carry on the functions by working in tandem or all alone. Vitamin B12, in particular, has a great impact on neurological health.