Losing sleep undoes the rejuvenating effects new learning has on the brain
...in cells in the hippocampus, Hairston and her team wanted to find out whether restricting sleep during a spatial learning task would affect new cell production in the hippocampus. The experiment: swimming to the exit platform The researchers trained rats on one of two tasks using a water maze -- a plastic...Tomato juice keeps emphysema from developing in new model; Lycopene cited
... important contributing factor in emphysema and we wanted to concentrate on oxidative stress for two reasons...ng our mouse model for smoke-induced emphysema, we wanted to intervene in the accumulation process by changing daily lifestyle, especially eating habits, "Sey......ngus. The agricultural engineer Claudio Cerboncini wanted to find out what chemical weapons the fungus-resistant sunflowers have at their disposal. In his PhD thesis for Professor Heide Schnabl of the Bonn Centre of Molecular Biotechnology (CEMBIO) Claudio infected different types with their sworn enemy. I...Component in soy products causes reproductive problems in laboratory mice
...ked to reproductive problems later in life, but we wanted to find out when the damage occurs," said Retha R. Newbold, MS, a developmental endocrinologist at NIEHS and an author on the study. "The study showed that genistein caused alterations to the ovaries during early development, which is partly respon...Researchers at Vanderbilt-Ingram Cancer Center uncover clue to explain invasive brain tumors
...ooked at CXCR4 more closely, in dish studies. They wanted to determine whether cells that have CXCR4 invade more than cells without the molecule. They induced glioblastoma and forced the cells to migrate, comparing migrating brain tumor cells with the cells at the origin of the cancer. Their findings were c......ynapse - this could explain its altered shape. "We wanted to know if Staufen2-deficient nerve cells can still transmit signals," explains Michael Kiebler. In order to determine this, researchers collaborated with Stefan Boehm's group at the Medical University of Vienna's Institute of Pharmacology. Measureme...Public support for environmental protection on the decline
...urveys. In January 2001, 63 percent of respondents wanted the environment to be a top priority. In succeeding years, support fell to an average of 45 percent. Greenberg offered three possible explanations for the decline: Less public interest in the environment due to competing public concerns, notably the ...Clawed frog helps Fanconi anemia research make leaps
... Fanconi proteins don't recognize the damage." "We wanted to develop an approach that would allow us to determine how the Fanconi proteins assemble on replicating DNA and what proteins control the important steps. These extracts give us the tool we need for those experiments," she said. In fact, in the new ...Canine cancer vaccine program shows early promise
...reatment, dog owners from all over the nation have wanted to participate in the study, on the remote chance that this would help their pet. After promising results from work done in collaboration with cancer specialists from Arizona, California, and Michigan, the school has hired a full-time technician to ...Inside rocks, implications for finding life on Mars
...but had no technique to do so, until now. "I have wanted to do this for 40 years, but there wasn't any way to do so before," said Schopf, the first scientist to use confocal microscopy to study fossils embedded in such ancient rocks. He is director of UCLA's Institute of Geophysics and Planetary Physics Ce...Highlights from the February 2006 Journal of the American Dietetic Association
...t school nutrition policies." The researchers also wanted to discover foodservice directors' and principals' views on whether their schools have and enforce policies on "competitive foods." These items are sold in settings such as vending machines and school fund raisers. They tend to be lower in nutritio...Biologists build better software, beat path to viral knowledge
...earch would likely be felt more by people who have wanted a tool to look at other viruses rather than, say, doctors with salmonella patients."So why do this study in the first place, if all it's doing is helping academics increase their own knowledge?" Jiang asked rhetorically. "It's not a simple answer, bu...One fish, two fish: New MIT sensor improves fish counts
...arted, they weren't looking for fish at all - they wanted to see if their device could locate ancient riverbeds under the ocean floor. But when their reconnaissance images did not match the riverbeds, the researchers went back with a new approach, and determined that they were seeing fish - tens of millions...New study: Inequality in recreational resources decreases physical activities, boosts weight gain
...ols of public health and medicine. They especially wanted to learn whether minority and low-income groups in which obesity levels are high and exercise levels low had access to such resources to about the same degree as people in richer communities. "We expected to find that private, fee facilities would ...UCLA biochemistry professor Sabeeha Merchant wins prestigious research award
...y research, when she learned of a mystery that she wanted to solve. Copper is an essential nutrient, for hum... the copper; there must be an unknown mechanism; I wanted to learn what that mechanism is and how it works." She started to conduct research at the molecular ...Less is more, gene study shows
...enes offered tangible benefits, Zhang said. "So we wanted to know how many genes have been lost and what kin...st genes and their functions, the researchers next wanted to figure out whether losing the genes benefited humans in any way. Studies on mice suggested that l...Americans prefer to leave child's sex to chance, survey finds
... years old. In the study, 77 percent of people who wanted more than one child indicated they either preferred an equal number of boys and girls or had no preference as to the sex of their children. Pre-conception sex selection using sperm-separation technology is currently available in the United States as ......orate this key fossil evidence," Sussman says. "We wanted evidence, not just theory. We thoroughly examined literature available on the skulls, bones, footprints and on environmental evidence, both of our hominid ancestors and the predators that coexisted with them." Since the process of human evolution is ...Taste gene may play role in smoking
...ersity of Wisconsin-Madison and University of Utah wanted to determine if a "bitterness" gene-phenylthiocarbamide (PTC)-was related to smoking status and how important the taste of cigarettes is to a smoker. As predicted, those smokers who possessed less sensitivity to bitter taste were more likely to rate......he American Psychosomatic Society. The researchers wanted to see if coping skills training, including progressive relaxation techniques would help people with osteoarthritis to better cope with the pain that the disease can cause. Also called degenerative joint disease, osteoarthritis affects more than 20 m...