时间:2018-12-16 作者:英语课 分类:VOA标准英语2012年(一月)


英语课

Children's Asthma 1 Not Eased by Anti-Reflux Drug


Seventeen-year-old Alaina Kvapil was diagnosed with asthma when she was 13.

“When you have an asthma attack, your airways 2 actually close up and people don’t realize that you can’t breathe, you can’t get the air out,” Kvapil said.

The World Health Organization says asthma is the most common chronic 3 disease among children. No one knows exactly why, but studies show a link between asthma and acid reflux disease. Up to 70 percent of people with asthma have gastroesophageal reflux disease, or GERD, which occurs when food and stomach acids leak back up into the esophagus, the tube that connects the mouth to the stomach.

Children and babies can suffer from gastroesophageal reflux disease. In children, as in adults, the most common symptom is heartburn.

Alaina Kvapil participated in a study to see if treating her acid reflux disease would also treat her asthma. She was one of more than 300 children who participated in the study. The study involved treating some of the children with powerful drugs called proton pump inhibitors, which reduce the amount of acid in the stomach.

Dr. Janet Holbrook from Johns Hopkins School of Public Health is one of the study's co-authors. “This study is important because proton pump inhibitors are widely used drugs and there’s been a lot of conflicting data about whether they’re effective for the treatment of asthma," Holbrook said.

Half of the children were given a proton pump inhibitor, or PPI, along with an inhaled 4 steroid that helps with breathing and digestive problems. The other half were given a placebo 5.

Although medication that treats acid reflux disease often helps to relieve asthma symptoms, the children without acid reflux symptoms who took PPIs did not see any reduction in their asthma symptoms. In fact, the drugs were shown to do some harm.

"In the children who were taking the active drug they tended to have more upper respiratory infections during the study. So not only is the treatment not effective...it may also come with some risk,” Holbrook said.

Even in the children who had documented acid reflux, the PPI did not help their asthma symptoms.

The American Lung Association helped support the study. Journal of the American Medical Association published its findings.



1 asthma
n.气喘病,哮喘病
  • I think he's having an asthma attack.我想他现在是哮喘病发作了。
  • Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。
2 AIRWAYS
航空公司
  • The giant jets that increasingly dominate the world's airways. 越来越称雄于世界航线的巨型喷气机。
  • At one point the company bought from Nippon Airways a 727 jet. 有一次公司从日本航空公司买了一架727型喷气机。
3 chronic
adj.(疾病)长期未愈的,慢性的;极坏的
  • Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
  • Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
4 inhaled
v.吸入( inhale的过去式和过去分词 )
  • She closed her eyes and inhaled deeply. 她合上双眼,深深吸了一口气。
  • Janet inhaled sharply when she saw him. 珍妮特看到他时猛地吸了口气。 来自《简明英汉词典》
5 placebo
n.安慰剂;宽慰话
  • The placebo has been found to work with a lot of different cases.人们已发现安慰剂能在很多不同的病例中发挥作用。
  • The placebo effect refers to all the observable behaviors caused by placebo.安慰剂效应是指由安慰剂所引起的可观察的行为。
学英语单词
acetum ipecacuanhae
aims of systems
Albistat
angiographic morphologic correlation
arbor escent
armos iron
attitude stability
bargatze
basement layer
bear's-paw fern
Bedocard
bluelines
bryce canyon national parks
C index
cantu
capacitance input filter
carboloy deposit
coccobius fulvus
cold shock protein
common collector amplifier
contraction operator
cyclohexanone dimethyl acetal
D sleep
dairy ranch
decibel based on one milliwatt
dielectric stability
difference space
downtrace
Drigalski-Conradi culture-medium
du pont de nemours
electronic reserves clearinghouse
escapement sequence
extinct animals
five-hundredths
form of procedure
formentors
Fuldan
genus Hypopachus
greenbacker
handed on
havells
HD (heat distortion)
in times of trouble
interval resolution
investment purchased register
kitschier
lichenometrical
lodenosine
loss due to friction
luciite
Machomovirus
Malko Sharkovo, Yazovir
mojao
muscatel
nanoforms
necrotically
nofc
nomalanga
Nonplesin
open marriage
overmilitarize
oxalacetate
pgrrolidin carboxylic acid
pH scale
phoromete
picture replenishment
pitch actuating mechanism
powder forging
prestidigitates
primary loess
pure tone audiometer
radar signalling
rated power of an energizing circuit
rated short circuit current
reflips
right-brained
rocky point effect
routing update
Ruvik
sallade
savings fund
semrau
servo relay
Shewhart control chart
shutter switch
silo-type incinerator
sky railway
solar polarity reversal
spyrr
standard geopotential meter
stop signal indication
strawalde
sub question
swear word
tape-controlled turret punching-machine
temperature scattering
termination of contract
town bus
Use-system
Ushak
well-reared
Zwolle