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
2024-04-11
6
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] Dr. Riedl and his colleagues found that only 72 papers had______.
选项
A、carried out diverse tests
B、recruited enough subjects
C、studied allergic responses
D、produced a valid conclusion
答案
D
解析
该句中which引导的定语从句对这72篇论文进行了解释。其中,sufficient date(充分数据)和rigorous tests(严谨的测试方法)等词都表明,这些论文的结论是有效的(valid conclusion)。因此,本题应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3549892.html
相关试题推荐
Articlesinmagazinesandnewspapersandspecialreportsonradioandtelevi
Articlesinmagazinesandnewspapersandspecialreportsonradioandtelevi
Articlesinmagazinesandnewspapersandspecialreportsonradioandtelevi
Articlesinmagazinesandnewspapersandspecialreportsonradioandtelevi
Articlesinmagazinesandnewspapersandspecialreportsonradioandtelevi
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
Atattoomaygiveparentsofchildrenwithfoodallergiessomepeaceofmind
随机试题
(Walk)______inthestreettheotherday,Icameacrossanoldfriendofmine.Wa
Whatjobdidthemangetfirst?Hegotthefirstjobas_________________.[br]
软件评审作为质量控制的一个重要手段,已经被业界广泛使用。评审分为内部评审和外部评
患者,男,29岁,在炉火旁取暖,第二天早上发现已死亡,其最可能的诊断是( )。
A.9B.3C.5D.6
砂仁主治A.脾胃气滞 B.痰饮喘咳 C.肝脾不和 D.湿阻中焦
关于零售企业的物流,下列说法错误的是()。A.零售企业物流是以批发据点为核心
与熔化极氩弧焊柑比,钨极氩弧焊的特点为()。 A.焊接速度快.B.熔敷效率
男,60岁,有慢性支气管炎病史,患肺心病10年,发现高血压5年。突然出现气急、大
施工作业人员享有的安全生产权利有()。 A.纠正和处理违章作业 B
最新回复
(
0
)