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).
1 B vitamins. 2  Patients with diabetic neuropathy are often deficient in B-complex vitamins. 3  Be sure to take 1,500 mcg of B12 daily, in addition to 150 mg of B6, which helps prevent diabetes-related damage to the nerves, blood vessels, kidneys and eyes.