Lutein and zeaxanthin status and auditory thresholds in a sample of young healthy adults
| Autor: | Billy R. Hammond, Jennifer C. Wong, Holly S. Kaplan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male 0301 basic medicine Lutein medicine.medical_specialty Adolescent genetic structures Nutritional Status Medicine (miscellaneous) Biology Audiology Auditory cortex Retina Young Adult 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Zeaxanthins medicine Macular Pigment Humans Auditory system Hearing Loss Auditory thresholds Nutrition and Dietetics General Neuroscience Auditory Threshold General Medicine eye diseases Zeaxanthin Improved performance Cross-Sectional Studies 030104 developmental biology medicine.anatomical_structure chemistry Patient Compliance Female Self Report sense organs Diet Healthy Biomarkers 030217 neurology & neurosurgery |
| Zdroj: | Nutritional Neuroscience. 20:1-7 |
| ISSN: | 1476-8305 1028-415X |
| DOI: | 10.1179/1476830514y.0000000138 |
| Popis: | Dietary carotenoids lutein (L) and zeaxanthin (Z) have been linked to improved visual and cognitive function. These effects are thought to be mediated by the presence of these pigments in critical regions of the retina and brain. There, it has been postulated that L and Z mediate improved performance by enhancing neural efficiency. The auditory system also relies on efficient segregating of signals and noise and LZ are also found in the auditory cortex. The purpose of the present study was to investigate the influence of LZ status (as assessed by the measuring levels in retina) on auditory thresholds in young non-smokers (N = 32, M = 20.72 ± 3.28 years).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.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).The overall pattern of results is consistent with a role for L and Z in maintaining optimal auditory function. |
| Databáze: | OpenAIRE |
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