VOA慢速英语[健康报道] 地中海植物有助治疗脑部疾病

来源:VOA 2019-03-13

VOA慢速英语

2017-02-21

 

 Mediterranean Plants May Help Brain Diseases 

 
From VOA Learning English, this is the Health & Lifestyle report.
 
In the future, chemicals from plants found in and around the Mediterranean may be used to help treat people with brain diseases such as Alzheimer's and Parkinson's.
 
These two diseases are age-related and neurodegenerative. Neurodegenerative relates to the degeneration of nervous tissue, especially the brain.
 
People suffering from Alzheimer's and Parkinson's have deposits of sticky plaque in their brains. Over time, this plaque reduces brain function. Eventually, it causes death.
 
Scientists say plaque can be reduced
 
But scientists say the plaque deposits can be reduced with chemicals from plants, including prickly pear and brown seaweed. Scientists say the chemicalsor, extractsappear to replace the harmful, sticky plaque with deposits that are less harmful.
 
These scientists are researchers at the University of Malta and the National Center of Scientific Research at the University of Bordeaux.
 
They tested the chemical extracts of the plants on a substance called Brewer's yeast. This yeast had plaque deposits similar to those seen in Alzheimer's disease. Scientists say the health of the yeast improved greatly after exposure to the chemical extracts.
 
Researchers then tested the extracts in fruit flies that were genetically changed to develop symptoms of Alzheimer's.
 
 
VOA慢速英语
 
They found that when the flies were given brown seaweed extract, their lifespans increased by two days. Prickly pear helped the insects live four days longer.
 
That may not sound like a long time. However, the researchers remind us that one day in the life of a fruit fly is equal to one human year.
 
Researchers also noted that movement in some diseased insects improved.
 
They reported their findings in the journal Neuroscience Letters.
 
The best way to fight neurodegenerative diseases
 
Researchers say that the sticky plaques in both Alzheimers and Parkinsons diseases appear to form through the same biological pathways. Targeting these pathways, they say, is the best way to fight the diseases.
 
The lead author of the study is Ruben Cauchi of the University of Malta's Center for Molecular Medicine and Biobanking. He says the Mediterranean plant extracts are already used in health foods and some cosmetics. So, they are very safe.
 
The research team is working with a company that extracts the chemicals for commercial use as so-called "fountain of youth" products.
 
And thats the Health & Lifestyle report.
 
Im Anna Matteo.
 
小编精心为大家从普特英语听力网论坛整理了2016年下半年度【7月-12月】的精精听内容— VOA standard (快速英语),(该整理材料为截断后简短的内容,每个音频都在一分钟左右,适合进行听写训练),想提高听力的小伙伴可以扫码购买只需9块9!掌握英语,从听开始!
 
 



相关文章