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).
2. Vitamin B Complex. All of the B vitamins help the body with increased levels of stress. Stress can cause hair loss, so vitamin B needs to be at optimal levels during stressful times. It is important to take all the B vitamins together in a complex for proper absorption. Vitamin B 12. Vitamin B12 nourishes the hair directly and is a part of the actual hair strands not just the follicles.