Differences in growth factor (GF) signaling may cause the poor prognosis in some breast cancer cases. A new study, published in the open access journal BMC Medical Genomics, suggests that some estrogen receptor-positive breast cancers respond poorly to tamoxifen because of increased GF signaling.
Research links smog to devastating effects not just on lungs but on hearts, brains and fetal development.
By Greg Critser
June 23, 2009
Not long ago, Jesus Araujo, a cardiology researcher at UCLA, parked a cage full of transgenic mice alongside the 110 Freeway. As a control, he placed another group in a less-polluted space on the Westside. Araujo was interested in learning more about how smog affects the heart and whether bad air could help explain the persistence of heart disease after 25 years of cholesterol management, statins and endless lifestyle advice.
Now there's a new reason for the weight-conscious to drink fat free milk at breakfast time, suggests a new study published in the July issue of the American Journal of Clinical Nutrition. Researchers in Australia found that drinking fat free milk in the morning helped increase satiety, or a feeling of fullness, and led to decreased calorie intake at the next meal, as compared with a fruit drink. The milk drinkers ate about 50 fewer calories (or nearly 9% less food) at lunch.
The Earth's mantle, situated under the Earth's crust, is a key area for understanding geological processes but we only come into contact with Earth's circulating layers in the event of earthquakes and volcanic eruptions. It's important to learn more about the characteristics of the Earth's mantle and these characteristics can be portrayed using seismic waves but the techniques used for this purpose still have various shortcomings. Dutch-sponsored research Ebru Bozdag demonstrated this during her doctoral research.
We do lots of things without thinking about it, like driving to work while we talk on the phone. We have a kind of 'autopilot' that kicks in for things we have practiced and it allows us to do other things simultaneously.
For people with schizophrenia it's a little different. Dutch researcher Tamar van Raalten investigated whether a disruption to the automation process, learning by repetition to do something on automatic pilot, explains why people with schizophrenia can process less information. She established that it is not the automation process but the processing of new information that causes problems.
Scientists at VIB, the Flanders Institute for Biotechnology, have successfully introduced genes coding for a variant of the Charcot-Marie-Tooth (CMT) disease, into fruit flies. CMT is one of the most common hereditary disorders of the peripheral nervous system. VIB research – directed by Albena Jordanova, Patrick Callaerts and Vincent Timmerman - shows that the flies recapitulate several symptoms of the human disease.
DNA is like your phone line. As Northwestern University biophysicist
Johnathan Widom put it in a talk recently, DNA simultaneously encodes multiple overlapping signals, just like your phone line that allows you to call home while you're surfing the net via DSL. Written into your DNA is the code for the amino acid sequences of the proteins produced by your genes, as well as the so-called 'non-coding' regulatory sequences which essentially encode when, where, and how much your genes are expressed.
Prologue
A Ph.D. thesis at the University of the Basque Country has analyzed the role played by a number of emotional variables, such as the way in which negative emotions are controlled or attitudes to emotional expression, and to use these variables as tools to predict the possibility of suffering an eating disorder.
The first U.S. charter school opened in 1992. Since then the number of charters has grown to more than 4,000 in 40 states, serving 1.2 million students, according to RAND, a nonprofit research organization based in Santa Monica, California.
Students at charter schools graduate and attend college at significantly higher rates than students at traditional public schools, according to a Rand Corp. study led by a Michigan State University scholar.The study, which offers mixed overall results for charter school advocates, comes amid a national debate over President Obama's endorsement of charter schools, which are experimental public schools that operate independently of the local school board.
