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).
Best Food for Nerves. Here are the best options for foods for nerve pain relief that I have found: Foods rich in Vitamin C. Bell and sweet peppers as well as hot peppers, guavas, papayas, thyme, parsley, kale, mustard greens, spinach and garden cress. Broccoli, cauliflower, Brussels sprouts, oranges, limes, lemons and grapefruit.