ITIH4 and sensory peripheral neuropathy: Sensory neuropathy also develops in various animal models of HIV-associated pain, including rodents models generated by exposure of peripheral nerves or spinal cord to gp120 (Herzberg and Sagen, 2001), gp120 transgenic mice receiving antiretroviral drugs (Keswani et al., 2006) and SIV-infected monkeys (Hou et al., 2011).