Enzyme prevents lung damage in premature infants
...ts with oxygen-free radicals, converting them into harmless byproducts. The free radicals that attack lung cells are produced by white blood cells enlisted by the infant's immune system, and are not only a result of the oxygenated air breathed in by babies, according to experiments in lung cells conduct...Better research needed to assess psychological and social effects of cannabis
...uivalent to the conclusion that use of cannabis is harmless in psychosocial terms; problems with the available evidence render it equally unable to support this proposition. Better evidence is needed in relation to cannabis, which is widely used, and in relation to other drugs that, although less widely used,...How brain gives special resonance to emotional memories
...esonance imaging. Such imaging involves the use of harmless magnetic fields and radio signals to measure blood flow to individual brain regions, which reflects greater activity in those regions. Then, following the scanning session, the researchers tested participants memory for the images they viewed during ...Researchers induce temporary blindness to learn more about vision
...s with transcranial magnetic stimulation (TMS), a harmless noninvasive technique using brief magnetic pulses. When applied to the visual cortex, TMS induces temporary, reversible blindness lasting only a fraction of a second. TMS was administered on 75 percent of the trials at optimal times to pr...The machinery of forgetting fears
... (fMRI). This widely used technique involves using harmless magnetic fields and radio signals to measure blood flow in targeted regions of the brain, which reflects the level of brain activity. The fMRI studies revealed greater activity in the amygdala in response to the shock-associated square during fear ac...Chronic sinusitis sufferers have enhanced immune responses to fungi
... people with sinusitis respond abnormally to these harmless fungi. The investigators exposed immune cells derived from the blood samples to extracts of four common airborne fungi: Alternaria, Aspergillus, Penicillium and Cladosporium. The cells of chronic sinusitis sufferers released significant amounts of th...People are of 'two minds' on moral judgments
... resonance. In this widely used imaging technique, harmless magnetic fields and radio signals are used to measure blood flow in regions of the brain, with such flow indicating brain activity levels. The researchers discovered that people confronting the difficult personal moral dilemmas showed increased activ...Gender and sex hormones affect the brain's pain response and more, according to new studies
...utes as they receive a moderately pain-causing but harmless injection of salt water in their jaw muscle. (The pain dissipates within minutes of completion of the experiment and causes no residual damage.) The studies are double-blind and placebo-controlled. In a study involving 14 men and 14 women, Zubieta f...Promise for helping adults with dyslexia
...nce imaging (fMRI). In this widely used technique, harmless magnetic fields and radio signals are used to scan blood flow in brain regions, which reflects brain activity. The fMRI scans revealed that during a word processing task, the dyslexic subjects showed less activity in a region of the brain known to be...Cocaine addicts show reduced brain structure that underlies judgment
...esonance imaging, a widely used technique in which harmless magnetic fields and radio signals are used to create three-dimensional images of the brain. The researchers used data from the brain scans to determine the volume of the amygdalas in the subjects. The researchers found that the amygdalas of the cocai...New network of gastrointestinal immune cells discovered
...y out one of their normal functions, taking up the harmless strains of E. coli that normally populate the intestine and transporting them to lymph nodes. Introduction of disease-causing salmonella bacteria into the gastrointestinal system of both groups of mice revealed that the receptor-negative animals, w...Brain-scanning technologies need standards, according to Stanford researcher
...alled incidental findings. These features could be harmless such as a benign cyst but could also be life-threatening malignant tumors or abnormalities in the blood vessels. Each type of brain-imaging study poses its own quandaries. For example, should all brain studies have MDs on the research team? The volum...New substance that improves the photodetection of bladder cancer gains market approval
...ct can be used clinically. These accumulations are harmless because within 24 hours the body naturally eliminates all traces of the molecule. Ex vivo and clinical optimization studies using hexaminolevulinate were carried out in collaboration with Pavel Kucera from the Institute of Physiology of the Universi...Emotional memory study reveals evidence for a self-reinforcing loop
...nce imaging (fMRI). In this widely used technique, harmless magnetic fields and radio waves are used to image blood flow in regions of the brain, and increased blood flow is a signature of higher brain activity. The pleasant images were of romantic scenes and sports; the unpleasant images involved injured peo...