Global EditionASIA 中文雙語Fran?ais
World
Home / World / Europe

London scientists develop new test for potentially deadly peanut allergy

Xinhua | Updated: 2018-05-04 01:00
Share
Share - WeChat

LONDON - Scientists from Britain's Medical Research Council (MRC) have developed a new laboratory test to safely diagnose peanut allergy with a 98 percent accuracy, it was reported Thursday.

Unlike current options, the new test doesn't run the risk of false-positives or causing allergic reactions such as anaphylactic shock, said the MRC.

Hundreds of people around the world, many of them children, die each year as a result of peanut allergy.

The simple blood test is five times more cost-efficient compared to the oral food challenge -- the standard food allergy test -- and could be adapted to test for other food allergies.

Peanut allergies are among the most common food allergies in children, with doctors currently diagnosing the allergy using a skin-prick test or specific IgE test, but this may result in over-diagnosis or false-positives and it cannot differentiate between sensitivity and true food allergy.

When skin-prick and IgE test results are unclear, allergists rely on feeding peanuts in incrementally larger doses to a patient in a highly-controlled setting in hospital to confirm allergy to the food. While the test is the gold-standard for diagnosing food allergies, there is risk of causing severe allergic reactions. Now, the researchers have developed a safer, accurate blood test in the lab.

Dr Alexandra Santos, an MRC clinician scientist at King's College London, paediatric allergist and the study's lead author, said: "The current tests are not ideal. If we relied on them alone, we'd be over diagnosing food allergies -- only 22 percent of school-aged children in the UK with a positive test to peanuts are actually allergic when they're fed the food in a monitored setting."

Dr Santos continued: "The new test is specific in confirming the diagnosis so when it's positive, we can be very sure it means allergy. We would reduce by two-thirds the number of expensive, stressful oral food challenges conducted, as well as saving children from experiencing allergic reactions."

Santos said the new test was now being adapted to test other foods, such as milk, eggs, sesame, and tree nuts.

"This test will be useful as we are seeing more and more children who have never been exposed to these foods because they have severe eczema or have siblings with allergies. Parents are often afraid to feed them a food that is known to cause allergic reactions," added Santos.

According to Food Standards Agency estimates, five to eight percent of children in Britain have a food allergy with up to one in 55 children having a peanut allergy.

The results of the research have been published in the Journal of Allergy and Clinical Immunology.

Most Viewed in 24 Hours
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲人成网亚洲欧洲无码| 日日摸日日碰夜夜爽亚洲| 国产99视频精品草莓免视看| 67194熟妇在线观看线路1| 成人片黄网站色大片免费| 十三以下岁女子毛片免费播放| 男女一边桶一边摸一边脱视频免费 | 日韩欧美福利视频| 伊人色综合九久久天天蜜桃| 蝌蚪蚪窝视频在线视频手机| 国产精品久久久久久网站| bban女同系列022在线观看| 推油少妇久久99久久99久久| 亚洲av成人一区二区三区| 波多野结衣伦理视频| 四虎国产精品永久在线网址| 国产三级小视频在线观看| 国产高清在线观看| а√最新版地址在线天堂| 日本一二区视频| 五月婷婷六月天| 麻豆91在线播放| 国产超薄肉色丝袜的免费网站| 中国一级特黄大片毛片| 日韩国产欧美在线观看| 亚洲电影中文字幕| 精品亚洲欧美无人区乱码| 国产在线h视频| 在线你懂的网站| 好大的奶女好爽视频| 久久一区二区明星换脸| 最新69堂国产成人精品视频| 亚洲欧洲精品久久| 狂野欧美激情性xxxx| 农民人伦一区二区三区| 色妞www精品视频免费看| 国产性生交xxxxx免费| 91精品一区二区三区久久久久 | 中文字幕视频不卡| 日韩污视频在线观看| 亚洲伊人久久网|