Lutein & Zeaxanthin for cognitive function: a new use for eye antioxidants

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Lutein & Zeaxanthin for the cognitive function: A new use for eye antioxidants by Professor Gene Bruno, MS, MHS, RH (AHG) Huntington College of Health Sciences The Carotinoid Antioxidants Lute (L) and Zeaxanthin (Z) are primarily known for healthy visual development and function, Including the ability to efficiently absorb blue light. 1 by absorbing blue light T&Z that achieves the critical value visual structures of the eye, which offers a certain protection against resulting oxidative damage2 - which can also offer a certain degree of neuroprotection. This is important because reduced oxidative stress as ...
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lutein & zeaxanthin for cognitive function: a new use for eye antioxidants

by Professor Gene Bruno, MS, MHS, RH (AHG) Huntington College of Health Sciences

The carotenoid antioxidants lutein (l) and zeaxanthin (z) are best known for their role in healthy visual development and function, including the ability to efficiently absorb blue light. By absorbing blue light T&Z that reaches the critical value of visual structures of the eye, whereby a certain protection against resulting Oxidative damage is offered2 - which can also offer a certain degree of neuroprotection. This is important because reduced oxidative stress has been proposed as a mechanism for neuroprotection. A less well -known advantage of L&Z is your role in cognitive function, which is underlined by the fact that L&Z 72 percent of the total carotenoid in the brain of infants and 41 percent in the brain of adults. 3,4

This cognitive role of L&Z was recently published in a recently published study by the magazine of the International Neuropsychological Society. 5 The hypothesis that lower L&Z concentrations are associated with neurobiological inefficiency during cognitive performance was found in 43 older adults (average age = 72 percent; 58 percent female). The L&Z concentrations were determined on the basis of serum samples and based on retinal mirrors, which were measured with non-invasive flicker photometry.

The functional MRI technology (FMRI) was used to measure the brain activity of the participants while trying to remember word couples that were previously taught them. The researchers then analyzed brain activity while the participants were in the machine. The results were that people with higher L&Z values ​​did not need as much brain activity to do the task, while people with lower concentrations of this carotenoid needed greater brain activity.

Basically, the whole story is shortly. With increasing age, a certain degradation occurs naturally in the brain. However, the brain tends to compensate for this in some ways. One of these options is to increase brain activity to do a job. In this way, the brain can maintain the same cognitive level of performance. In the L&Z study, those with higher concentrations of this carotenoid no longer needed brain activity to do the work because they were "more neuronal".

not surprisingly, another study from 2014 from the magazine age and aging, 6 found that older adults with higher L&Z values ​​(measured as optical pigment density) had a significantly better global cognition, verbal learning and language flow, memory, processing speed and speed of perception than those with lower Value.

Research suggests that 10 mg Lutein and 2 mg zeaxanthin have positive effects every day - although additional advantages can occur when using 20 mg or 4 mg. 7

references:
1 Halliwell B, Gutteridge JMC. Free radicals in biology and medicine. third edition New York, NY: Oxford University Press; 1999. 2 Krinsky Ni, Landrum Jt, Bone Ra. Biological mechanisms of the protective function of Lutein and Zeaxanthin in the eye. annual Rev. Nutr. 2003; 23: 171-201. 3 Vishwanathan R, Kuchan MJ, Johnson ej. Lutein is the prevailing carotenoid in the child's brain. Poster No. 1.23. 16. International symposium about carotenoids. Acta Biologica Cracoviensia series Botanica.2011; 53 (Suppl.1): 29. 4 Johnson EJ et al., Lutein and Zeaxanteenspiegel in the brain are related to the cognitive function in a hundred-year-old (summary) fueb j . 2011; 25: 975. 5 Lindbergh Ca, Mewborn cm, Hammond BR, Renzi-Hammond LM, Curran-Celentano JM, Miller LS. 6 Relationship between Lutein and ZeaxanteLhlingen to neurocognitive functions: an FMRI study of older adults . J inte neuropsychol Soc . 2016 Oct 25: 1-12. [Epub Ahead of Print] 7 Vishwanathan R, Iannaccone A, Scott TM, Kritchevsky SB, Jennings BJ, Carboni G, Forma G, Satterfield S, Harris T, Johnson KC, Schalch W, Renzi LM, Rosano C, Johnson EJ. The optical density of the maculara pigment is related to the cognitive function in older people. old aging . March 2014; 43 (2): 271-5.

gene Bruno, MS, MHS, The Academic Dean for Huntington College for Health Sciences, is a nutritionist, herbalist, writer and pedagogue. For more than 30 years, he has been forming and trained in a natural product dealer and medical specialists, has researched and formulated natural products for dozens of nutritional supplements and wrote articles and integrative health issues for trade and consumers publications and peer reviews. It can be reached at gbruno@hchs.edu.

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  • Journal of the International Neuropsychological Society
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  • Prof. Gene Bruno Blog
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  • verbal learning
  • z
  • zeaxanthin

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