“抗氧化物质可能有助于保护大脑免受氧化应激造成的细胞损伤。”研究作者之一May A。 Beydoun博士推测，他计划在未来探索直接添加这些抗氧化物质是否能保护大脑功能。
 Higher antioxidant levels linked to lower dementia risk。 Retrieved May 7th， 2022 from https：//medicalxpress.com/news/2022-05-higher-antioxidant-linked-dementia.html
 Association of Serum Antioxidant Vitamins and Carotenoids With Incident Alzheimer Disease and All-Cause Dementia Among US Adults。 Neurology（2022）。 DOI： 10.1212/WNL.0000000000200289
More than 7000 people were surveyed in the study, all of whom were over the age of 45 at the time of the study. Blood samples were collected at the beginning of the study, and the physiological status of the volunteers was determined by physical examination and communication tests.
The team then followed them for an average of 16 years.
Based on the long-term tracking results,Volunteers with high levels of lutein and zeaxanthin in their blood are far less likely to develop dementia.. Compared with people with low levels of the two molecules, they found that for every higher standard deviation of lutein and zeaxanthin (about 15.4 micromoles / liter), the risk of dementia decreased by 7%.
The effect of another antioxidant, β-cryptoxanthin, may be more obvious, with each increase in its level by a standard deviation (about 15.4 micromoles / liter).The risk of dementia will be reduced by 14%..
However, the researchers pointed out that when they introduced other factors, the effects of antioxidants decreased, including education and income, exercise levels, and so on, suggesting that these factors affect the link between antioxidants and dementia.
"antioxidants may help protect the brain from cell damage caused by oxidative stress." May A, one of the authors of the study. Dr Beydoun speculates that he plans to explore whether adding these antioxidants directly protects brain function in the future.
In daily food, lutein and zeaxanthin are high in vegetables such as kale, spinach and broccoli, while fruits such as oranges, papayas and persimmons are rich in β-crypxanthin. In order to ensure that you do not join the ranks of people with dementia, eat more of these vegetables and fruits every day, they may be the real "smart medicine"!
 Higher antioxidant levels linked to lower dementia risk. Retrieved May 7th， 2022 from https：//medicalxpress.com/news/2022-05-higher-antioxidant-linked-dementia.html
 Association of Serum Antioxidant Vitamins and Carotenoids With Incident Alzheimer Disease and All-Cause Dementia Among US Adults. Neurology（2022）. DOI： 10.1212/WNL.0000000000200289