Hearing impairment affects over two-thirds of adults with diabetes. We investigated whether rat models type 1 and 11 diabetes display impaired auditory function. Tympanometry measurements were conducted in Sprague-Dawley rats (control, n = 20), streptozotocin-induced I diabetic (n 20) at 42 - 56 days old; Zucker (Hos: ZFDM-Lean (fa/+, Type 2 Diabetic (ZFDM ZFDM-fa/fa); 20)), 90 old. All male. C...