首页
登录
职称英语
Many who think they have food allergies(过敏)actually do not. A new report, co
Many who think they have food allergies(过敏)actually do not. A new report, co
游客
2024-03-13
23
管理
问题
Many who think they have food allergies(过敏)actually do not. A new report, commissioned by the federal government, finds the field is full of poorly done studies, misdiagnoses and tests that can give misleading results.
While there is no doubt that people can be allergic to certain foods, the true incidence of food allergies is only about 8 percent for children and less than 5 percent for adults, said Dr. Marc Riedl, an author of the new paper and an allergist and immunologist at the University of California, Los Angeles.
Yet about 30 percent of the population believe they have food allergies. And, Dr. Riedl said, about half the patients coming to his clinic because they had been told they had a food allergy did not really have one. Dr. Riedl does not dismiss the seriousness of some people’s responses to foods. But, he says, "That accounts for a small percentage of what people term ’food allergies.’ " Even people who had food allergies as children may not have them as adults. People often shed allergies, though no one knows why. And sometimes people develop food allergies as adults, again for unknown reasons.
For their report, Dr. Riedl and his colleagues reviewed all the papers they could find on food allergies-more than 12,000 articles. In the end, only 72 met their criteria, which included having sufficient data for analysis and using more rigorous tests for allergic responses.
"Everyone has a different definition" of a food allergy, said Dr. Jennifer J. Schneider Chafen, the lead author of the new report. People who receive a diagnosis after one of the two tests most often used— piercing the skin and injecting a tiny amount of the suspect food and looking in blood for IgE antibodies(抗体), the type associated with allergies—have less than a 50 percent chance of actually having a food allergy, the investigators found.
One way to see such a reaction is with what is called a food challenge, giving people a suspect food disguised so they do not know if they are eating it or a placebo(安慰剂)food. If the disguised food causes a reaction, the person has an allergy.
But in practice, most doctors are reluctant to use food challenges, Dr. Riedl said. They believe the test to be time consuming, and worry about asking people to consume a food, like peanuts, that can elicit a frightening response.
The paper, to be published Wednesday in The Journal of the American Medical Association, is part of a large project organized by the National Institute of Allergy and Infectious Diseases to try to impose order on the chaos of food allergy testing. An expert panel will provide guidelines defining food allergies and giving criteria to diagnose and manage patients. They hope to have a final draft by the end of June. [br] The word "shed" in the 3rd paragraph means closest to "______".
选项
A、fear
B、recover from
C、develop
D、suffer from
答案
B
解析
该段最后三句谈到了两个方面:shed allergies和develop allergies。倒数第3句谈及有些人在儿童时期对某些食物过敏,但到成年后就不再过敏了。按此思路,shed取“去除,摆脱”之义合适,recover from意为“恢复”,与之同义。本题应选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3530371.html
相关试题推荐
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactually
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactually
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactually
APosterAboutanAcademicReportForthispart,youareallowed30minutes
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
Manywhothinktheyhavefoodallergies(过敏)actuallydonot.Anewreport,co
Manywhothinktheyhavefoodallergies(过敏)actuallydonot.Anewreport,co
Manywhothinktheyhavefoodallergies(过敏)actuallydonot.Anewreport,co
随机试题
Iwillneverforgetthetenyears______webothspentinthelittlevillage.A、w
与燃煤锅炉相比,燃油燃气锅炉不具备下列哪个特点?()A.体积小 B.热效率
根据《公路沥青路面养护技术规范》(JTG5421)的规定,沥青路面养护措施有(
下列各项分别选自某旋律的某一小节,被选旋律为混合拍子的是()。
2011年单项选择:王雷认为只要上课听讲,课后做好作业就能取得好成绩。这属于班杜
计算工程量,分部分项工程计算顺序可以按“先横后竖、先下后上、先右后左”计算法。(
违反《建设工程质量管理条例》,对以下哪些行为应责令改正,处10万元以上30万元以
(2020年真题)中央银行在运用货币政策进行金融宏观调控时,主要是通过调控(
工业炉的烘干应在( )进行。 A.炉窑砌筑后即可 B.炉窑砌筑及相关设备安
国际建设项目工程总承包的组织形式应该不包括()。A.由一个既有设计力量又有施工力
最新回复
(
0
)