Researcher explores tumors' survival strategy
...e said. "The school of thought is that there is a constant dialogue between the cancer cells and their so-called stromal cells, which are the supporting, non-cancerous cells within a tumor environment," Dr. Motamed said. "It's very obvious that you have to find out the players that regulate tumor cells or, t...Rockefeller, Weill Cornell researchers find link between estrogen, brain structure changes
...many other scientists believe "plasticity," or the constant structural reshaping of synapses in forming new dendritic spines, encodes processes necessary to promote learning and memory. These spines are diminished in the aged brain and are atrophied in Alzheimer's disease. Furthermore, McEwen also believes...Common Indian spice pigment can prevent onset of alcoholic liver disease, study finds
... four groups, the rats increased their weight at a constant rate. Moreover, there was no difference in weight gain among the groups. There was also no difference in levels of blood alcohol in the two alcohol-fed groups. Major findings included: (1) Curcumin inhibits alcohol-induced liver injury and lipid...Getting a handle on sensitive cycles
...the cell continuously senses estrogen levels." The constant removal of receptors from genes functions like a sort of security camera that takes a fresh picture of estrogen levels in the cell at regular intervals. It guarantees that the cell can respond to changes when they occur. "It also shows that this sens...Free shuttles can close the grocery gap
...by a Ralphs store on West Adams in Hollywood has a constant waiting line, said Terry ONeil, director of public relations for Ralphs Grocery Co. Vans run daily from 9 a.m. to 8 p.m., and offer a free ride home to any customer with a store receipt for $25 or more. Customers arrive at the store by their own mean...Researchers determine fundamental mechanisms involved in immune response
...oreign entities while the other remains relatively constant but can be changed in a few specific ways to provi...the DNA in the specialized region, also called the constant region, of the Ig to initiate the process leading to antibody specialization. The second is why the ...Researchers find possible link between pre-natal alcohol consumption and diabetes
... AVP release and consequent loss of free water and constant state of dehydration and polydipsia. The researchers believe that the involvement of vasopressin in learning and memory, and other behavioral processes may lead to research addressing the possibility that mental retardation that can accompany fetal ...Researchers find protein mechanism for potential atherosclerosis development
...at Dallas have discovered. Vascular vessels endure constant pounding and considerable stresses associated with blood flow. Vascular smooth muscle cells play an important role in the development of blood vessels, providing structural integrity and the ability to dilate and constrict. The low-density lipoprotei...White noise delays auditory organization in brain
...the young rats used in their study were exposed to constant white noise that is relevant to the increasing, random noise encountered by humans in today's environment. They theorize that their findings could aid in explaining the increase in language-impairment developmental disorders over the last few decades...An unexplored genomic terrain in a handful of dirt
...porting the theory that mycobacteriophages undergo constant random genetic mixing in the wild. These free-flowing associations produce a mlange of recombinant viruses, with the weaker strains weeded out in survival-of-the-fittest competitions. The researchers reported their findings in the April 18, 2003, iss...Green tea linked to skin cell rejuvenation
...Cells in the epidermis, or keratinocytes, are in a constant state of renewal. The newly formed cells, stem cells, are undifferentiated but rapidly dividing. As they push through the epidermis, they begin differentiating. During this migration and differentiation process, the cells are very active, expending a...... mammalian cells areknown to be able to maintain a constant average size as they growand divide. It has therefore been assumed that the 'checkpoints'yeast cells use to ensure that they divide when they reach thecorrect size are mirrored by checkpoints in mammalian cells, butthat assumption had not been tested...Diabetes therapies and liquid memory may develop from micro fluid research, Science researchers say
...a microfluidic channel, you can achieve relatively constant flow of medicine despite decreases in pressure," said Groisman. This consistency of flow, despite changing pressure, is a special feature of this new device called a "flux stabilizer." "You could discharge 90 percent of your medicine without an into...Body clocks keep migrating monarchs on course, Science study shows
...he southeast. When the butterflies were exposed to constant light, they flew directly toward the sun, presumably having lost their sense of time. Reppert's team also found that, while UV light is required for sun compass navigation, some other wavelength of light was required for entraining the butterflies' c...Novel flu vaccine shows promise in mice
... viral-coat protein called M2 that remains largely constant from year to year. Mice vaccinated with the vaccine generated a strong antibody response against M2. In fact, the mice generated a more powerful antibody response to the vaccine than to infections by the flu virus itself, according to Gerhard. "We s...Seaweed uses chemical warfare to fight microbes
...he National Academy of Sciences. Seaweeds live in constant contact with potentially dangerous microbes, and they have apparently evolved a chemical defense to help resist disease, said lead author Julia Kubanek, an assistant professor of biology and chemistry at the Georgia Institute of Technology in Atlanta...Nonnative Invasive Plants of Southern Forests
...ontrolling nonnative invasive plants relies on the constant surveillance of the road and stream sides they spread along," said Miller. "Eradicating these plants is much easier when they first appear, so it is important to be able to identify them in both growing and dormant seasons." Miller's book covers 33 p...Researchers identify fatty-acid oxidation as additional source of nutrients in the placenta
...sts held that glucose whose supply is consistent, constant and reliable through maternal circulation provided all placental and fetal energy needs. Although it was known that fatty acids, or lipids, are actively transported from the placenta, little research had been done to assess the role of fatty acids a...JCI table of contents, 2 June, 2003
... In the thick of the thyroid The maintenance of constant levels of thyroid hormones is essential for proper human development and growth. A study in mice has revealed the mechanism of thyroid hormone synthesis and release, which may aid further research and better our understanding of the molecular mechani......tapping a beat with a finger; drawing circles at a constant rate, stopping at the same point on the page and c...uing; and drawing uninterrupted circles, also at a constant rate but merely passing the same point on the page without stopping. Stroke victims were unable to k...