Tag: "lungs" at biology news
Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
...ontaininghemoglobin molecule is synthesized in the lungs
and that the NO attachedto it differs from that pr...y may be comparable in importance. Here we havethe lungs
synthesizing a compound and delivering it to tissue where it ismetabolized, just as oxygen is." ...
Race Plus Roaches: A Breathtaking Link
...asthma, a condition that causes the bronchi of the lungs
to constrict. Onset almost always occurs in childhood. Serious illness and even death can result. For example, in Baltimore City, where the study was conducted, asthma is the number one cause of absenteeism from school, says Eggleston. And recent epi...
Duke researchers find existing drugs can stop fungus that attacks AIDS patients
...sthe brain. The fungus enters the body through the lungs
when a person breathesin its airborne spores. In a healthy person, it is mostly harmless, becausethe immune system effectively combats the organism. However, in people withsuppressed immune systems, the organism can evade the host defense and infectt...
First Salmonella Vaccine For Poultry To Be On The Market Soon
...system, which protects the gastrointestinal tract, lungs
and genital and urinary organs; the blood, which sends antibodies to fight toxins; and specialized killer cells. Most vaccines are injected and trigger only the second and third lines of defense. In a related development, Curtiss also annou...
Basin Traps Air Pollution In Mexico City: International Study Has Implications For U.S. Cities
...oncentrations similar to those that burnedeyes and lungs
in Los Angeles in the early 1970s, according to preliminaryresults of a field study conducted earlier this year. Peroxyacetal nitrate alsois implicated in the production of ozone, another irritant that makes breathingdifficult. An internatio...
Smoking Mice Lead To Emphysema Breakthrough
...chool of Medicine in St. Louis havediscovered that lungs
lacking a certain enzyme are apparently immune toe... Emphysema, almost always caused by smoking, robs lungs
of theirelasticity and leaves patients gasping for air. The lungs
actually becomeoverinflated, leavi...
Free Radicals Implicated In Impaired Lung Function; Damage May Be Mitigated By Certain Antioxidants
...fined as oxidative stress) reflects damage to the lungs
equivalent to the effect of 3-5 years of aging, or... volume of air participants could force from their lungs
during a one-second exhale. They also collected blood samples from all participants, and meas...
Pitt Researchers Construct Novel Delivery System For Gene Therapy Of Liver Disorders
... geneactivity also was detected in the kidneys and lungs
of injected animals. Whenthe researchers injected the mice with a different gene called luciferasecontained in the RCR structures, they detected high levels of the gene in theliver for two days, which then rapidly declined, almost disappearing by da...
Even Moderate Air Pollution Reaching Eastern Wilderness Decreases Mountain Hikers' Lung Function
...me -- the volumeof air they could expel from their lungs
in one second -- and forced vitalcapacity -- the total volume of air expelled from the lungs
- before and aftertheir hikes. They found that a 50 ppb increase in ozone concentration wasassociat...
UF Researchers Identify Virus That May Cause Epidemic Disease In Sea Turtles
... tumors develop withininternal organs, such as the lungs
and kidneys, and impede normalfunction. The research team has detected the virus in more than95 percent of the tumors plaguing green and loggerhead sea turtlesfound in the waters surrounding Florida, as well as in tumorson green turtles in Ha...
Leftover Fetal Cells May Affect Development Of Scleroderma
...as well as internal organs, including the kidneys, lungs
and heart, gastrointestinal tractand joints. Currently there is no way to prevent or cure scleroderma, buttreatment can relieve some symptoms. ***Study Details*** The study was conducted in two parts. Part one enrolled 40 women, average agemid-40s...
MIT's Mini Respirator Breathes Life Into Mutant Mice
...s then oscillated up and down, causing theanimal's lungs
to inflate and deflate. In contrast, today's conventional respirators deliver air via a tube inthe neck. This isn't feasible for mice, however, because the animals are toosmall. "Even if you could insert a tube into the trachea, any bit of m...
Fruits And Vegetables Protect Lungs
...s of lung function as measured by how much air the lungs
could expel, the difference between people with above-average levels of all the major antioxidants and those with below-average levels is about equivalent to the difference between the lung function of nonsmokers versus those who've smoked a pack a d...
False Security: You Can't Always Believe The Results Of A Genetic Test
...s premature. Cystic fibrosis, in which the lungs
and airways become clogged with mucus and prone to infections, is caused by defects in a single large gene. There are hundreds of these mutations. Some are very rare, and certain mutationsare more common in particular ethnic groups. To be eff...
Interleukin-12 Helps Control Mycobacterium Avium Infection
... looked for evidenceof bacteria in the spleens and lungs
of infected mice. The first group of infected mice received high doses of IL-12 alone. These micehad significant but undramatic reductions in mycobacteria counts, and the micedisplayed noticeable wasting and enlarged spleens when compared with contr...
Penn Researchers Invent World's First Device To Rapidly Assess Lung Function
... small blood and breath samples todetermine if the lungs
are working properly. The use of thisnovel mass s... To function normally, the body relies on the lungs
to obtainboth a steady supply of oxygen and to eliminate carbon dioxidegenerated by metabolism. Abn...
Shellfish Toxin Study Provides Possible Clue To Cystic Fibrosis Therapy
...protein phosphatases that slow fluid output in the lungs
of cystic fibrosispatients. The study of an important environmental toxin may reap unexpectedbenefits for the treatment of a common and debilitating genetic disease." The other researchers on the cooperative study are Weiwen Xie, B.S., ofthe...
Allergy And Asthma-Exaceberating Mites, Molds And Pollens On The Rise Due To El Niño . . . La Niña
...s helps prevent long-termchanges and damage to the lungs
and respiratory system." In testing patients'for specific allergies, the first step is to take a detailed medical history.Then a panel of "sensitivity" tests is completed. Using disposable plastic"scratcher pads," that have been exposed to specific a...
Scientists Discover How Influenza Virus Becomes More Deadly
...e proteaseenzymes that cleave HA are common in the lungs
and trachea but not in othertissues. Yoshihiro Kawaoka, D.V.M., Ph.D., and Hideo Goto, D.V.M., Ph.D., of theUniversity of Wisconsin School of Veterinary Medicine in Madison, havediscovered that this human influenza A virus is more virulent because ...
Snake Venom Slows Tumor Growth
... a 90 percent reduction of tumor metastasis to the lungs
ofanimals treated with the protein contortrostatin (CN), purified from the venomof the southern copperhead. "Metastasis is a significant problem with breast cancer," Markland says. Whenfirst diagnosed with breast cancer, he says, the majority of wom...
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