Lutein and Zeaxanthin Status and Auditory Thresholds in a Sample of Young Healthy Adults
Design: LZ status was determined by measuring macular pigment (MP) optical density using a standardized psychophysical technique (customized heterochromatic flicker photometry). Auditory thresholds were assessed with puretone thresholds and puretone auditory thresholds in white noise.
Results: MP density was related to many, but not all, of the puretone thresholds we tested: 250 Hz (F(6,32) = 4.36, P < 0.01), 500 Hz (F(6,32) = 2.25, P < 0.05), 1000 Hz (F(6,32) = 3.22, P < 0.05), and 6000 Hz (F(6,32) = 2.56, P < 0.05).
Conclusion: The overall pattern of results is consistent with a role for L and Z in maintaining optimal auditory function.
Keywords: Auditory thresholds; Lutein; Zeaxanthin.
Nutr Neurosci . 2017 Jan;20(1):1-7. doi: 10.1179/1476830514Y.0000000138. Epub 2016 Mar 2.