Chemists create 'Superbowl' molecule; May lead to better health
...operties, Sherburn says. For instance, one highly active version of the superbowl molecule goes by the name tetrabromo-superbowl (C268H320O52Br4) due to the addition of four bromine atoms. The bromine atoms make the hole at the top of the molecule smaller, which makes it more difficult for things to pass i...Man and mouse share genome structures
...oincided with the transcription starting points of active genes, as they and others had seen earlier in the yeast. Unexpectedly, they also found tags idling over regions near genes. The researchers think these sites have important regulatory functions, because the methylation patterns are similar in compara...Protein discovery could unlock the secret to better TB treatment
... TB bacteria in the body. Once the TB bacteria are active again, the disease becomes treatable using common drugs like antibiotics. Scientists believe that uncovering the molecular structure of this protein will lead the way to designing drugs which enable treatment of dormant and multidrug resistant TB. I...Fox Chase Cancer Center scientists identify immune-system mutation
...e show that when the normal form of this factor is active in all developing lymphocytes, it can redirect would-be killer cells to the CD4 helper T cell lineage. This indicates that Th-POK is a master regulator of the maturation process." Understanding the development of critical components of the immune sy...Researchers Uncover Key Step In Manufacture of Memory Protein
... compartment, proBDNF is chemically converted into active mBDNF. After mBDNF is formed, it is released to th...not take place, proBDNF cannot be converted to its active form. Dr. Loh explained that the proBDNF molecule has four projections, resembling prongs. These pro...Found: Missing sequence of the human Y chromosome
...chromosome. This sequencecontains eight putatively active genes that could be implicated insex-associated he...ilobase "euchromatic island" with eight presumably active genesflanked by repetitive satellite sequences.To ensure that this 554-kilobase sequence was in fact...Marburg virus disease in Angola - update
...rting the Ministry of Health, Angola to strengthen active surveillance and contact tracing. Médecins sans Frontières (Belgium, France, Holland and Spain) are assisting with infection control and establishing isolation facilities in Uige hospital. Experts from the Department of Infectious Diseases, Manchest...Gene therapy converts dead bone graft to new, living tissue
...matory tissue for differences in the levels of the active genes. He discovered that the genes that create two key proteins in living bone, called RANKL and VEGF, were barely expressed around the dead bone. He then modified a harmless virus to carry these genes, devised a method of freeze-drying a paste cont...Jefferson Virologists Coax HIV Out of Hiding
...powerfulcocktail of anti-HIV drugs known as highly active antiretroviraltherapy (HAART), they hoped they had found a way to finally rid thebody of the virus. But they were wrong. The virus instead goes intohiding, dormant and practically undetectable in the body ?andimpervious to attack. While HAART manages...Female sex hormones play a vital role in defense against sexually transmitted diseases
...ea is important because one in every four sexually active adults is seropositive for HSV-2 and women are much more susceptible than men. "The results directly indicate that the hormonal conditions that provide protection against primary exposure to sexually transmitted viral infections may be very differen...Researchers identify target for cancer drugs
..., then we may be able to prevent Akt from becoming active and contributing to tumor formation." ...Vital step in cellular migration described by UCSD medical researchers
...cell moves toward its intended target. If Rac were active throughout the cell, it would extend protrusions in all directions, in essence keeping the cell in one place. Until now, researchers have had limited understanding of the molecular mechanism that inhibits Rac activity in the back of the cell, to mai...Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses
...nd hygiene agents are now available with different active ingredients and application methods. "Our study showed that the anti-microbial hand washing agents were significantly more effective in reducing bacteria than the alcohol-based handrubs and waterless handwipes," he said. "Our study also showed that,...Taking Aim With Nanoparticle PEBBLEs
...h targeted PEBBLEs, some rats were still alive and active two months later, and MRI images showed that their tumors had vanished. Kopelman and coworkers plan to tinker with the PEBBLEs a bit more before trying them on larger numbers of rats, and PEBBLE-based cancer treatments for people are a long way off....Highly adaptable genome in gut bacterium key to intestinal health
...t 1,237 of the bacterium's 4,779 genes were highly active compared to B. theta grown in a simple-sugar soup. The predominant group of high-activity genes were involved in the acquisition and digestion of carbohydrates. "In mice fed complex carbohydrates, we found that the microbes attached to small food pa...Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers
...sect is active. For example, a grasshopper is most active when it flies. When the grasshopper is inactive and resting, however, it continues to breathe in oxygen at the same high volume it uses while flying. The result is excess internal oxygen that can cause oxidative damage -- the destruction of biomateri...Jumping gene helps explain immune system's abilities
...chers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in DNA very much like those created by the process behindantigen recognition."Hermes behaves more like the process used by the immune system torecognize a million different proteins, called antigens, than anypr...UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections
...chers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in DNA very much like those created by the process behindantigen recognition."Hermes behaves more like the process used by the immune system torecognize a million different proteins, called antigens, than anypr...New therapy for HIV/AIDS eliminates needles and excessive toxicity
...chers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in DNA very much like those created by the process behindantigen recognition."Hermes behaves more like the process used by the immune system torecognize a million different proteins, called antigens, than anypr...Gene sequencing explains bioremediation 'bug'
...chers show that a jumpinggene called Hermes, still active in the common house fly, createschanges in DNA very much like those created by the process behindantigen recognition."Hermes behaves more like the process used by the immune system torecognize a million different proteins, called antigens, than anypr...South America's vast pantanal wetland may become next everglades, UNU experts warn
...anal is the world's largest freshwater wetland, of active interest to U.S. scientists for insights into the lost biodiversity of Florida's famed Everglades, altered by drainage projects starting in the 1940s to make way for development and agriculture. In a message to mark World Water Day, March 22, UNU sa......placebo. For every three patients that receive the active gene, one will receive a placebo. Following treatment, patients enrolled in the study will be examined for chest pain at one month, three months and six months. A total of 404 patients will be enrolled in the study at the 20 study sites across the co...Protein offers way to stop microscopic parasites in their tracks
...parasite used at least four of those genes to make active proteases. When they looked at where and when Toxoplasma made the proteases, they found that only one, TgROM5, consistently showed up at the back end of the parasite, where it would be ideally positioned to snip off the adhesive protein spots. Cell ...Asthma gene clusters identified
...cluster was identified that was comprised of genes active in acute asthma, but not stable asthma. They also identified gene clusters that were active in stable asthma, but not the acute form of the disease. "Now that we know what genes are turned on...Effective Cancer Treatments Follow The Clock
...n contrast, `jams' the circadian clock at the most active point in its cycle.?/p> Biological clocks function in the brain as well as lung, liver, heart and skeletal muscles. They operate on a 24-hour, circadian (Latin for "about a day") cycle that governs functions like sleeping and waking, rest and act...LUCA technologies confirms real-time methane generation
...ah. This site represents the latest in a series of active "GeobioreactorsTM" that Luca Technologies has iden... methane. Three additional sites are not currently active but may have the potential to be turned into active Geobioreactors through cross-inoculation with mi...Scientists discuss improved biopesticides for locust control in West Africa
...ocust biopesticides may be used. Vaughan has been active in locust control since 1997, when he assumed coordination of the USAID-funded project at Virginia Tech, "Development of Biopesticides for Grasshopper and Locust Control in Sub-Saharan Africa," which wrapped up in June 2004. Agblevor participated in ...Variation in women's X chromosomes may explain differences among individuals, between sexes
...e, they found. The proportion of genes that remain active differs dramatically among regions of the X chromo...s of the X chromosome will depend on the number of active genes normally contained within that segment, he explained. The findings also highlight key differe...Hirsute Or Hairless? Two Proteins May Spell The Difference
...ons diminishes. By identifying which molecules are active in specific cell types at specific developmental stages, this study lays the foundation for dissecting the mechanisms that connect two key processes—intercellular remodeling and proliferation—in epithelial development. And since the consequences of T...DuPont's first biologically derived polymer receives global recognition
...and health category. Fabrics made with Sorona® for active wear, apparel and sportswear are commercially available through Chinese fiber and fabric manufacturers. More than 1,000 products from multinational and local companies were considered for this recognition. The judging panel commented, "Chemical fibe...Antiretroviral therapy may prevent excess risk of some cancers in people with HIV
...ed with human immunodeficiency virus (HIV), highly active antiretroviral therapy (HAART) may prevent most excess cases of Kaposi sarcoma and non-Hodgkin lymphoma, according to a new study in the March 16 issue of the Journal of the National Cancer Institute. Studies of people with acquired immunodeficiency...Viral protein influences key cell-signaling pathway
...lar genes out of 33,000 become either more or less active due to the p12 protein. The researchers found that p12 altered the activity of a variety of genes linked to chemical pathways that control cell signaling, proliferation and death. The p300 gene stood out as one showing increased activity. Taken over...Insight into natural cholesterol control suggests novel cholesterol-lowering therapy
...tase activity, contributing to a major increase in active reductase that becomes progressively harder to control, according to the researchers. The new findings suggest that drugs that mimic lanosterol--given along with statins--may improve the drugs' long-term ability to lower cholesterol by stimulating re...50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel
...ss known as sumoylation -- until now thought to be active only in the nucleus -- also occurs near the cell's...n, previously associated with nuclear proteins, is active and essential outside the nucleus at the plasma membrane," said study author Steven Goldstein, M.D.,...Affymetrix Licenses Microfluidics Technology From Caliper Life Sciences
...day is the second agreement since Caliper began an active program to out-license its intellectual property portfolio. The new "LabChip Driven" program was put in place to support the company's microfluidics adoption strategy and to broaden and accelerate the availability of new technologies and products for...Computational Method Speeds Mapping of Cell Signaling Networks
...gnaling. Such alterations occur only at points of active signaling in the network. The researchers measured the modified signaling molecules to determine where along the pathway T-cell components changed in response to signals. An increase in the amount of the molecules indicated spots where they were most...Researchers uncover sequence of major rice pathogen
... has been subject to invasion and proliferation of active transposable elements, reflecting the clonal nature of this fungus imposed by widespread rice cultivation. ...Brain-mapping technique aids understanding of sleep, wakefulness
...als awake receives inhibitory signals from neurons active only during sleep, as well as reinforcing, positive signals from nerve cells that are very active during wakefulness. The findings, available online and appearing in the April 21 issue of the journ...Discovery may lead to better Candidiasis drug
...esults showed that histatin was significantly less active when the suspect target was missing. Further research indicated that histatin binding to the target protein killed the fungal cells by preventing it from regulating its ions, the positive and negative charged molecules that move into, and out of, ce...Defenseless plants arm themselves with metals
...d salicylic acid - a common plant compound and the active ingredient in pharmaceuticals like aspirin and acne medications - governs this pathway. When faced with a fungus or bacteria, most plants turn up their production of salicylic acid, which then interacts with other molecules in the plant, eventually ...Youth With HIV Take More Risks After New Meds Introduced
...te at the David Geffen School of Medicine. Highly active antiretroviral therapies, or HAART, were introduced in 1996. The new drugs have successfully lowered virus levels and prolonged the lives of thousands of HIV patients. Although the new study does not prove that the introduction of HAART is the cause...Canada approves marijuana-based pain spray
...c relief of neuropathic pain in MS. Its principal active cannabinoid components are delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). The ratio of THC to CBD in Sativex is 2.7 mg : 2.5 mg per spray, ensuring a standardized dose is delivered each time it is used. “The approval of Sativex is good ne...Nanoparticle Breast Cancer Drug Approved by FDA
...s 100th the size of a red blood cell) in which the active chemotherapeutic drug, paclitaxel, is bound to a n...called albumin. By using this nanotechnology, the active component (paclitaxel) can be delivered into the body at a 50 percent higher dose over 30 minutes. ...Mouse gene shows new mechanism behind cardiac infarction in man
...er degree of atherosclerosis, while mice with more active variants of the gene displayed the opposite. Studies of two patient groups revealed that a certain variant of the human homologue of the gene was more common in people who had a history of cardiac infarction than those without. “This is an example ...Researchers discover underwater volcano
...ersity of California, San Diego, has discovered an active underwater volcano near the Samoan Island chain. During a research cruise to study the Samoan hot spot, scientists uncovered a submarine volcano growing in the summit crater of another larger underwater volcano, Vailulu'u. Researchers explored the u...Novel gene-silencing nanoparticles shown to inhibit Ewing's sarcoma
...cific growth-promoting gene called EWS-FLI1 that's active only in Ewing's sarcoma tumors. Once inside these cells, the genetic machinery of the tumor cells are effectively silenced or shut down, preventing further growth. "This is the first study to show that systemic administration of siRNA can inhibit d...Biochemists report discovery of structure of major piece of telomerase; implications for cancer
...n most types of healthy cells in our bodies, it is active in the vast majority of cancer cells, Feigon said. Because cancer cells divide rapidly, their telomeres should get shorter more quickly than normal cells. However, because cancer cells have high levels of telomerase activity, which rebuilds the telo...Marine sponge yields nanoscale secrets
...hetic molecules (that duplicate those found at the active center of the bio-catalyst of the marine sponge) onto the surfaces of gold nanoparticles. They showed that when two populations of these chemically modified nanoparticles, each bearing half of the catalytic site, are brought together, they function j...Genetic therapy reverses nervous system damage in animal model of inherited human disease
...s for gene therapy because, as we show with LAMAN, active enzymes from genetically corrected cells will be secreted into brain tissue and taken up by neighboring cells, Wolfe said. "In this case we see that storage lesions throughout the brain had been greatly reduced, even though gene transfer was limited ...One gene links newborn neurons with those that die in diseases such as Alzheimer's
...st neurons born during adulthood die, but a bird's active singing increases the survival rate of new neurons. They reasoned that, if UCHL1 levels are related to the death or survival of neurons, these levels should increase when birds are singing and when more new neurons thus have a chance of surviving. In...Study reveals dramatic difference between breast cancers in US and Africa
...ion -- a measure of which genes were turned on and active -- in breast cancer tissue from 378 women in Nigeria and Senegal. They compared the results with a database of breast cancer tissue from 930 Canadian women compiled by Charles Perou and colleagues in North Carolina and British Columbia. They found t...Compounds in plastic packaging act as environmental estrogens altering breast genes
...signed to see whether exposure to these hormonally active biological compounds could alter the genomic signatures of the mammary gland during critical stages of development." BPA (bisphenol A) is a synthetic resin used in food packaging, dental sealants and polycarbonate plastic products, which range from C...Protein Discovery Could Unlock The Secret To Better TB Treatment
... TB bacteria in the body. Once the TB bacteria are active again, the disease becomes treatable using common drugs like antibiotics. Scientists believe that uncovering the molecular structure of this protein will lead the way to designing drugs which enable treatment of dormant and multidrug resistant TB. I...Migratory songbirds have a specialized night-vision brain area
...s laboratory analyzed the brain structures for the active expression of two genes called ZENK and c-fos that...that the area, which they named Cluster N, was not active in the migratory birds during the daytime. Furthermore, non-migratory songbirds did not show strong ...Doctors closer to using gene analysis to help trauma patients
... were able to consistently analyze which genes are active in patients with serious infections or traumatic injuries. Researchers want to understand the genetic features that enhance a patient’s recovery as well as the elements that cause people to die sometimes weeks after an injury occurs. Identifying tho...Red delicious, Northern Spy apples have most antioxidants, chemists find
...oxidants in apples, but which polyphenols are most active in the fruit has perplexed scientists. Tsao and his colleagues used three different laboratory measures to evaluate polyphenol activity in apples that are popular in Canada: Red Delicious, McIntosh, Cortland, Northern Spy, Ida Red, Golden Delicious, ...Measuring Enzymes At End Of Cancer Pathway Predicts Outcome Of Tarceva, Taxol
...terrupting spindle assembly - CDK will become more active in an attempt to correct the problem. Working with the Sysmex Corporation of Kobe, Japan, the researchers devised a test to measure CDK activity and the expression, simultaneously. They found that monitoring of two isotypes of CDK activity accurate......ed advanced breast cancer, as the agent is clearly active in this setting.?/p> An estimated 211,240 women will be diagnosed with breast cancer in the United States in 2005. Breast cancer is the most commonly diagnosed cancer in women and the second leading cause of cancer-related death in women in this ...Supercomputers to focus brains on AIDS dilemma
...h a cyclic moiety, or "wing," to the "west" of the active center. Around this same time, the McCammon group...nd with their cyclic moieties to the "east" of the active center as well as to the "west." Based on these simulations, the researchers were also able to predi...Gladstone investigators discover how resting T cells avoid HIV infection
...ther showed that blocking production of the small, active form of A3G in resting CD4 T cells was sufficient ...ion through the action of the small, enzymatically active form of A3G, which stops the virus in its tracks." CD4 T cells are a class of lymphocytes, or white...