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Obstruction in Biological News

Severe asthma may be a different form of the disease

... have severe asthma are more likely to have airway obstruction even after maximal treatment. The results suggest ... asthma: Air Trapping and Incomplete Reversal of obstruction with Bronchodilation. Understanding the ... the severe group was more likely to have airway obstruction even after maximal treatment. There was not ...

Athletes with asthma need more help from their team trainers

... asthma occurs when airflow to the lungs is reduced due to narrowing and closing of the airways in association with exercise. This airway obstruction usually occurs just after exercise and is much more common in college athletes than in the general population. Symptoms include coughing, wheezing ...

Stem cell focus for IBD wound healing

... gene therapy) to manipulate the expression of the CD24 molecules on cells to promote even more rapid healing. This may mean less scarring, bowel obstruction and fistulation and less chance of developing tumours resulting from persistent inflammation. As a result of this, it may also reduce the chance of ...

A step forward in virology

... the virus cannot reproduce and is quickly eliminated by the immune system. This process also has another big advantage: Viruses cannot adapt to the obstruction of the signal chain all that quickly, he said. Smallpox: a bioterrorist attack? The vaccinia virus belongs to a family of particularly ...

Study finds a high rate of asthma in college athletes

... asthma occurs when airflow to the lungs is reduced due to narrowing and closing of the airways in association with exercise. This airway obstruction usually occurs just after exercise. We targeted varsity athletes in this study because many of the reported severe episodes of asthma provoked by ...

Chromosomal abnormalities in sperm higher after vasectomy reversal

... with the ejaculatory fluid due to a physical obstruction (such as a vasectomy). He found that they had ... of aneuploidy and diploidy, we would know that obstruction by vasectomy must affect spermatogenesis in the ... correlation between the duration of the obstruction in post vasectomy-reversal men and the number of ...

New vaccine for condition that kills 500,000 children a year

... from the market because it caused a rare bowel obstruction called intussusception at a rate of one in 10,000 ... an intestinal blockage. Because the bowel obstruction was so rare, and the increased incidence was so ... four to 10 weeks apart. Because of the bowel obstruction associated with the withdrawn vaccine, a primary ...

Discovery Promises Simpler Therapy for Sickle Cell Disease

... have generally been attributed to the physical obstruction of blood vessels by distorted, or "sickled," and ... in sickling and, ultimately, the irreversible obstruction of blood vessels. Relieving the vascular ... by red blood cells contributes to the vessel obstruction characteristic of sickle cell disease, and that ...

Get a whiff of this: Smell test could sniff out serious health problems

... the sniff test? “If they fail our test, that’s a pretty good indication that there’s something wrong with their sense of smell. Maybe there’s an obstruction ?a deviated septum or polyps,?Frank says. “Perhaps the olfactory nerve has been damaged due to a head injury or a viral infection.? For those who ...

Migration played key role in HIV spread in South Africa

... and opening of the air passages. The study's physiologic data failed to show an association between long-term marijuana smoking and airflow obstruction (emphysema). However, all 14 studies that assessed long-term marijuana smoking and respiratory complications noted an association with increased ...

Long-term marijuana smoking leads to respiratory complaints

... and opening of the air passages. The study's physiologic data failed to show an association between long-term marijuana smoking and airflow obstruction (emphysema). However, all 14 studies that assessed long-term marijuana smoking and respiratory complications noted an association with increased ...

Brain works more chaotically than previously thought

... the dendritic arm of another neuron. The synapse presents an insurmountable barrier to the neuron's electrical pulses. The brain overcomes this obstruction by means of an amazing signal conversion: the synapse releases chemical messengers, known as neurotransmitters, which diffuse to the dendrites. ...

Long-term cancer risk follows stem cell transplant recipients

... While the procedure can be lifesaving, it is associated with serious short-term adverse effects, such as mucostitis, infections, and liver vascular obstruction as well as the potential long-term complication of developing of a second, usually solid cancer. To estimate the risk and identify risk factors ...

Discovering the first steps in transcription-coupled repair

... DNA is being transcribed into RNA -- an activity vital to the synthesis of proteins -- the transcription-coupled repair (TCR) process detects the obstruction and repairs the damage. But when TCR itself fails, the results can be lethal to cells and to the organism. In humans, failure of ...
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