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A gene's first 'kiss' sets off that affair known as puberty
...ng hormone (GnRH) is secreted and sets off a chain reaction of chemical messages. Inside the hypothalamus, nerve cells release GnRH in a 'round-the-clock,' pulsatile fashion. With each secretion, the pituitary gland is stimulated to secrete its own messengers, lutenizing hormone (LH) and follicle-stimulating ...Spleen may be source of versatile stem cells
...that a treatment designed to address theautoimmune reaction underlying type 1 diabetes actually cured thedisease in diabetic mice. Late in 2003 they reported the mechanismbehind the earlier discovery: cells from the spleens of donor mice -intended to train the diabetic animals' immune systems not to attackisl...Learning to fight an adversary that won't stay down
...ovations such as highly efficient polymerase chain reaction (PCR) have made it possible to identify and study the many genes responsible for antibiotic resistance in hospitals and the environment. "What has been found is that there are more antibiotic resistance genes around than we ever realized," says Dr. ...Gene therapy converts dead bone graft to new, living tissue
...ther scientists have attempted to invoke a similar reaction in dead bone by infusing tissue-growing proteins directly into the bone. This has proven successful for the small bone transplants used in spinal fusion, but not for larger grafts, because the proteins' effectiveness wear off in just hours. By contra...Novel Therapy Tested in Mice Could Chase Away Cat Allergies
...jected with cat allergen, GFD blocked the allergic reaction involving the human cell receptors, an indication that it might also work in people. Scientists made another set of mice allergic to cats by injecting them with cat protein and an immune system booster. These mice became “actively allergic?to cats: ...Color-blind method opens new doors in DNA sequencing
...eries of bacterial cloning and/or polymerase chain reaction (PCR) steps, reduce its length to a manageable size of thousands of nucleotides. Using natural replicating enzymes, the DNA is tagged with four fluorescent dyes, each corresponding to a particular nucleotide. This tagging process, called Sanger seque...Purdue proves concept of using nano-materials for drug discovery
...mbrane - in this case alumina, which separates the reaction chamber from a solution. The pores in this membran...brane's pores, it mixed with the enzyme, causing a reaction and turning blue in the process, which demonstrated that the device works. The Center for Membrane ...Genetically modified natural killer immune cells attack, kill leukemia cells
...ptor bound to CD19 on leukemic cells, it set off a reaction that super-charged the killing activity of the NK cell. "By developing a technique for cultivating large numbers of NK cells from a small blood sample, we made it practical to consider them a potential treatment against many different types of cance...Open microfluidic and nanofluidic systems
...rk with much smaller reagent volumes, much shorter reaction times, and the possibility of massive parallel processing. In general, this should lead to increased throughput and, thus, to reduced cost of (bio)chemical analysis. In addition, such integrated labs-on-a-chip have many potential applications in biom...MSI releases 'moleculizer' - a new approach to simulation of intracellular biochemical networks
...ticle, entitled "Automatic generation of cellular reaction networks with Moleculizer 1.0" (pdf) describes MSI's discrete stochastic event simulator, which keeps trackof the thousands of complex species formed from pathway proteins as itsimulates reactions between them by a standard Monte Carlo method. Adisti...World's largest rainforest drying experiment completes first phase
...d their leaves. In fact, this study shows that the reaction to drought is instead a decrease in the rate at which tree trunks grew in diameter. Many small trees, measuring 4 to 10 inches in diameter, simply stopped growing during the end of the dry season of 2000, following the first period of rainfall exclus...Special Imaging Study Shows Failing Hearts Are 'Energy Starved'
...s actually measured the flux of ATP produced by CK reaction in the beating human heart.?/p> Specifically, ... various important biochemicals and their chemical reaction rates within the cells of various tissues. They first performed MRS on 14 healthy volunteers to meas...Researchers develop rapid diagnostic tool for pathogen identification
...on an established method known as polymerase chain reaction that allows amplification of genetic sequences and on a technology previously used for DNA sequencing and detection of genetic polymorphisms. Genetic probes for pathogens were coupled to markers known as mass codes. After amplification, incorporated ...Artifical cornea lets woman blind 20 years see
A severe allergic reaction to a medication robbed Elma Phifer of her vision two decades ago when she was 39. The reaction scarred her corneas and reduced the ability of her eyes to soothe their damaged surfaces by remainin...Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells
...ptor bound to CD19 on leukemic cells, it set off a reaction that super-charged the killing activity of the NK cell. "By developing a technique for cultivating large numbers of NK cells from a small blood sample, we made it practical to consider them a potential treatment against many different types of cance...Researchers discover underwater volcano
...ommunities. Such hazards may include the explosive reaction between red-hot lava and seawater, or tsunamis that may be caused by the collapse of the newly built volcano. "It is a good idea for us to keep our eyes on this area, but there is no real reason for concern about immediate danger," said Staudigel. ...A little stress gives beneficial oomph! to immune system
...umber of immune cells to sites of potential immune reaction could worsen pre-existing inflammatory illnesses such as cardiovascular disease or gingivitis, and autoimmune disorders such as arthritis, multiple sclerosis or psoriasis. In autoimmune diseases, the immune system attacks the body. "Understanding me...Could microbes solve Russia's chemical weapons conundrum?
...da to transform the toxic by-products contained in reaction masses (RMs) that arise when mustard is destroyed ...fication. "Bioutilization of organic compounds of reaction masses is a biotechnological method that pro-vides maximum environmental safety, since the pollutant...Master gene controls healing of skin in fruit flies and mammals
...s the master gene that initiates the genetic chain reaction that results in cuticle repair. Wounds in mutant flies that lack the grainyhead gene fail to heal. "The genes involved in cuticle repair are activated very quickly, within 30 minutes after injury," said Joseph Pearson, a graduate student working und...Mouse with designer liver has enhanced glucose tolerance, insulin response
... enzyme, Erk, which is elevated in normal liver in reaction to insulin stimulation. Dr. Feng concluded that the function of Gab1 in normal liver cells is to promote signaling in the Erk pathway, which reduces insulin response signals flowing through IRS and Akt proteins. "We propose that Gab1 acts as a negat...Hydrogen and methane provide raw energy for life at 'Lost City'
...hermal vent field via serpentinization, a chemical reaction between seawater and the mantle rock on which Lost City sits. The resulting fluids are 105 F to 170 F. At the other kind of field, first discovered in the early 1970s, volcanic activity or magma drives venting and fluids can reach 700 F. The vents at...Natural Killers Could Lead to New Hepatitis Treatments
... in the liver due to hepatitis. Hepatitis can be a reaction to viruses, parasites such as malaria or other infections. Learning to “call off?the NKT cell's pursuit and attack could offer a treatment for hepatitis and associated complications. The researchers, led by Dan Littman, a Howard Hughes Medical Insti...Shark attack worries? Driving to the beach is more deadly
... each year - about 90 worldwide - from an allergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of people in the water at any given m...New HIV drug candidate developed in Sweden
... each year - about 90 worldwide - from an allergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of people in the water at any given m...... each year - about 90 worldwide - from an allergic reaction to eating peanuts. Despite several attacks in Florida recently - one that killed a 14-year-old girl - shark attacks remain very rare when you put it all into perspective, McEachran believes. "There are millions of people in the water at any given m...Researchers develop promising new gene network analysis method
... a deadly "oncoprotein" is switched on, what chain reaction of gene activity does it set off? The protein, c-...s web of connections would be to set off the chain reaction and study it over time. To make that happen, Brown researchers came up with a clever experiment. Jo...Scientists take aim at virulent bacteria by decoding machinery of key control enzyme
...eotide in the DNA sequence GATC through a chemical reaction known as methylation. Methylation is a biological ... drug to inhibit this particular enzyme's chemical reaction or its DNA binding process. This kind of rationally designed drug could be an alternative against in...Scientists discover the body's marijuana-like compounds are crucial for stress-induced pain relief
...ims have a period of time in which the body's pain reaction is delayed. This effect is called "stress-induced analgesia." By the mid-1990s, researchers had targeted the sites of action of the brain's naturally occurring marijuana-like compounds as having a crucial role in blocking pain, but no one understood ...Environmental chemical cocktail may sabotage sperm
...enetrate the coverings of the egg. If the acrosome reaction happens before a sperm reaches the egg, then ferti... move was unaffected, but the spontaneous acrosome reaction meant that they were unable to fertilise an egg," said Prof Fraser. She said that the chemicals wer...Fragment of yellow fever virus may hold key to safer vaccine
...es, a person's own immune system, disrupted by its reaction to yellow fever virus infection, may lead to death rather than recovery. The most recent study was led by Stephane Daffis, a graduate student at Philipps-Universitat in Marburg, Germany. Using blood samples from two yellow fever patients who had rec...New type of rejection blocker protects kidneys after transplant
...of treatment based on blocking the immune system's reaction to a transplanted organ without hampering the body's ability to fight diseases and infections, according to Vincenti, clinical professor of medicine and surgery at UCSF and a kidney transplant specialist at UCSF Medical Center. "This is the first cl...Microreactor efficiently regenerates cofactors for biocatalysis
...m close to the cathode, and a normally unfavorable reaction equilibrium is driven into the desired direction o.... "In large batch reactors, a spontaneous reverse reaction prevents the regeneration of essential cofactors," Kenis said. "The absence of a bulk phase in our m...Elderly mice yield clues to the process of growing old
...g theory holds that oxidative stress -- the body's reaction to oxygen and the production of reactive, cell-damaging molecules known as free radicals -- is responsible for the aging process. According to the new Science report, markers of oxidative stress did not parallel the accumulation of mitochondrial gen...Neurologix announces positive results of gene therapy clinical trial in Parkinson's disease
...with no evidence of adverse effects or immunologic reaction related to the study treatment. Furthermore, patients in the trial, at one year, exhibited a statistically significant improvement (27%, p = .04) in motor function on the side of their body correlating to the treated part of the brain, as measured b...Bacteria recognize antimicrobials, respond with counter-defenses
...eptides as a warning signal. This alarm sets off a reaction inside the bacteria to avoid destruction. University of Washington (UW) and McGill University researchers have revealed a molecular mechanism whereby bacteria can recognize tiny antimicrobial peptide molecules, then respond by becoming more virulent...'Underground' tunnels discovered as means for communication between immune system cells
...lightest poke to a single cell can set off a chain reaction whereby cell after cell discharges bursts of calci...first sense the presence of an antigen and why the reaction is cell-specific, the authors decided to look at calcium flux, a well-recognized early measure of st...Results of world's first gene therapy trial for arthritis show approach safe, feasible
...ells, and hence, setting off the destructive chain reaction that follows. In essence, they needed a way to plug up the receptor and found such a device in a gene encoding the IL-1 receptor antagonist, or IL-1 Ra. Because it was the first trial of its kind and safety was a key concern, the protocol was design...New law for resolution allows unprecedented sharpness in fluorescence microscopy
...stantial improvements in the quantification of the reaction kinetics of organic molecules (Phys. Rev. Lett., A...ds that use fluorescence fluctuations to study the reaction kinetics of molecules in solutions. The smaller the focal volumes, the more effective and sensitive ......fic channels that transport water. Slow organic reaction In addition to water channels and ion channels, organic particles play an important role. If the salt balance is disrupted, so-called 'volume-regulated anion channels' are first of all activated. These ensure that chloride ions leave the cell. Furt...Firefly protein lets researchers monitor molecule linked to cancer
... according to Piwnica-Worms, is that the potential reaction patterns in the NF-KappaB pathway form an hourglass-like shape, fanning out among many options at the start, narrowing in the middle, and again fanning out among many options at the end. "At the waist of that hourglass is IKK," he explains. "This ap...New study finds how cells with damaged DNA alert the immune system
...found that damage to a cell's DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body's immune system. The new findings, to be published July 3 in an advanced online issue of Nature, shed light on a long-standing question of how the natural killer (NK) cells - ...NHGRI expands effort to revolutionize sequencing technologies
...can be modified to perform sequencing by synthesis reaction chemistry. This method allows for smaller volumes of materials to be used as well as the decoupling of synthesis and detection steps, resulting in more efficient automation. M. Reza Ghadiri, Ph.D., The Scripps Research Institute, La Jolla, Calif. an...Renewed hope for Parkinson's patients
...found that damage to a cell's DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body's immune system. The new findings, to be published July 3 in an advanced online issue of Nature, shed light on a long-standing question of how the natural killer (NK) cells - ...Scientists get first glimpse at how plants, most animals repair UV-damaged DNA
...ron to damaged DNA ?but nobody could prove it. The reaction happened too fast to be seen with normal laborator... series of measurements to follow how the chemical reaction evolved over time. They assembled their measurements together like a series of stop-motion photogra...New study to explore cellular circuitry
...ocess. Only the tagged protein involved in a given reaction will show up in the results of specially designed tests. A second potential application of the library relies on its clones' ability to produce large amounts of protein, which can help re-wire cells that have undergone an unhealthy genetic change ...Biotechnology's newest chemical tool
...ped to alleviate the problems that had plagued the reaction in previous studies," Klimasauskas said. He likened the chemical reaction to a mechanical spring, explaining that the chemical energy trapped in AdoMet is sufficient to deliv...Plants reveal a secret and bring researchers nearer a cleaner future
... with an additional intermediate and propose a new reaction mechanism on a molecular basis for the release of ...ion states developed. When carefully analysing the reaction kinetics, they observed a time delay before the O2-evolving step. This delay unambiguously proved th...New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia
...and that it catalyzes another, so-far unidentified reaction that these bacteria require for normal metabolism,...talytic activity of the enzyme may be a lucky side reaction of an enzyme that evolved to act on some natural substance yet to be identified." Horvat carried ou......t binds to messenger RNA, and this phosphorylation reaction detaches ZBP1 from the actin messenger RNA--unlocking the messenger RNA so it can now be translated into the actin protein that makes cell movement possible." Understanding how actin synthesis is spatially regulated in motile cells could lead to new...Toasty oat aroma influenced by presence of health-linked polyphenols
...a and flavor formation in oats during the Maillard reaction which is the browning process that occurs when foo...ses show that the polyphenols inhibit the Maillard reaction by tying up or quenching some of the sugars and other transient reaction products the process needs ...Chemical compound inhibits tumor growth, size in new mouse study
...a and flavor formation in oats during the Maillard reaction which is the browning process that occurs when foo...ses show that the polyphenols inhibit the Maillard reaction by tying up or quenching some of the sugars and other transient reaction products the process needs ...Gene controls whether fear is a factor
...re fear. Stathmin-deficient animals also show less reaction to conditions that have previously proven unpleasant, an indication that the mice lack a normal memory for fear. "While one of the best understood memory-related neural circuitries within the mammalian brain is that which controls fear conditioning,...Novel protein complex enables survival in hostile environment
...xygen until about 2.7 billion years ago. Then, the reaction of the small amounts of oxygen with sulfide would ...m a gene fusion event." "From the affinities and reaction rates it is clear that the enzyme will sense even a minute amount of sulfite and will neutralize eve...Plant defenses prompt bacterial countermeasure in the form of 'island' DNA excision
... response to a so-called hypersensitive resistance reaction by the plant . The specific plant signals that are sensed by the pathogen to trigger the excision event remain to be identified. If some bacterial proteins give away the presence of the pathogen to the plant, why are they and their surrounding geno...Synthetic Protein Eases Arthritis Symptoms in Mice
...pha (TNF-alpha). TNF-alpha starts a chemical chain reaction leading to inflammation by binding to two cell surface receptors, TNFR-1 and TNFR-2. Naturally occurring PLAD helps both forms of TNFR assemble and prepare to receive TNF-alpha. Synthetic PLAD, the scientists hypothesized, would bind to its natural c...Looking for the genes that affect a person's level of response to alcohol
...ange their percent body water, which changes their reaction per drink, their liver gets a little slower in metabolizing alcohol, their brain gets a little more sensitive to alcohol, and when they get sick, they take medications, all of which affects their LR to alcohol." Furthermore, added Victor Hesselbroc......ar mo-tors transport certain molecules to specific reaction sites. Depending on the arrange-ment of the filaments in these systems, varying the travel distance provides a strategy to control either the localization of the reagents to their target sites or, alternatively, their diffusion, which is enhanced by ...Sea slug mixes chemical defense before firing at predators
...team determined that escapin mediates the chemical reaction with L-lysine and L-arginine that results in the d...perty in the secretion resulting from the chemical reaction between escapin and L-lysine. The scientists are currently examining the chemical process that resul......une system to pathogens, instead dampen the skin's reaction to infection and inflammation. This has the potential to significantly alter understanding of the mechanisms underlying many skin disorders such as psoriasis, lupus and skin cancer. Dendritic cells are found throughout the body and are extremely e......ns. Using a technique called the polymerase chain reaction to identify the bacteria in individual nodules, the researchers found that many plants nodulated both strains that were offered. On average, however, within individual plants, the poorly performing bacteria inhabited small nodules, while the more eff...Other ContentsbioterrorismbioterrorismbioterrorismbioterrorismbioterrorismbinocularbiofeedbackbiofeedbackbirthmarksbipolarbipolarbipolarbipolarbipolarblackheadOther TagsVideoVideoVideoVideoMarshfieldWeatherWeatherThompsonTrafficTrafficTraffic
(Date:5/15/2008)... May 15, 2008 (BRONX, NY) Contrary to long-held... risk of death, according to investigators from th...niversity. They reached their conclusion after exa...ative sample of adults in the U.S. The Einstein re...sed risk of death from cardiovascular disease (CVD...
(Date:5/15/2008)... Argonne, Ill. (May 15, 2008) Argonne National L... (MOU) with Savannah River National Laboratory (SR...ntal management research projects in support of cr...r important national priorities. , "The MOU allo...search," Argonne director Robert Rosner said. "Arg...
(Date:5/15/2008)... Fishermen hold empirical knowledge that tuna agg...old rope, pieces of wood, or even large marine mam...aggregation behaviour, but the past 20 years have ...of the associated concentrations of fish. Fisherme...h act as FADs. An enormous purse-seine net, deploy...
(Date:5/14/2008)... Intelligent Wireless Module Combines Linux, Se... Consumption, TUSTIN, Calif., May 14 /PRNewswire/...n intelligent high-performance module designed for...tion to 802.11a/b/g wireless local,area networks (...at need,WLAN connectivity with minimal power usage...
Breaking Biology News(10 mins):New study casts further doubt on risk of death from higher salt intake 2Argonne-SRNL agreement supports critical DOE, national priorities 2Does fishing on drifting fish aggregation devices endanger the survival of tropical tuna? 2Does fishing on drifting fish aggregation devices endanger the survival of tropical tuna? 3New Silex SX-560 Enables Enterprise 802.11 Wireless Connectivity for Battery Operated Devices 2Wiley Blackwell renews carbon neutral commitment 12424 1Taking Multiple Pain Relievers May Cause Complications 12419 1Taking Multiple Pain Relievers May Cause Complications 12419 2Patients relatives are ignored by the health system and suffer emotional stress 12416 1Patients relatives are ignored by the health system and suffer emotional stress 12416 2Former Biolase CEO 26 EVP Launch Technology4Medicine 12411 1Former Biolase CEO 26 EVP Launch Technology4Medicine 12411 2[0] New study casts further doubt on risk of death from higher salt intake[1] Argonne-SRNL agreement supports critical DOE, national priorities[1] Does fishing on drifting fish aggregation devices endanger the survival of tropical tuna?[1] New Silex SX-560 Enables Enterprise 802.11 Wireless Connectivity for Battery Operated Devices
(Date:5/16/2008)... HAE: TSX, MONTREAL...ation,(TSX:HAE), a specialty bio-therapeutics comp...rcialization, announced today that its Chairman of...li, will present at the,upcoming Rodman & Renshaw ..., May 20, 2008 in the Zephyr Room at Le Meridien B...
(Date:5/16/2008)... SAO PAULO, Brazil, May 16 /PRNewswire-FirstCall/ ...rs: TEMP3.SA; Bloomberg: TEMP3 BZ), a leading,prov... benefit plans and,specialized assistance services...r of 2008. The operating and financial information...d, is presented in Brazilian Reais and in,accordan...
(Date:5/15/2008)...PHILADELPHIA) Combining natural organic atoms wit...ute have developed a new type of enzyme inhibitor ...ys a key role in cancer development. , Based on...es the way for developing new ways to treat cancer...leads to uncontrolled tumor growth. , Details of...
(Date:5/15/2008)... HARBIN, China, May 15 /Xinhua-PRNewswire-FirstCal...tin Board: CYXI) ("China Yingxia" or "the,Company"...y engaged in the,development, manufacture and dist...plements, and personal care products in the People...inancial results for the first,quarter ended March...
Breaking Medicine News(10 mins):Health News:Haemacure announces webcast of presentation at Rodman & Renshaw 5th Annual Global Healthcare Conference 2Health News:Novel enzyme inhibitor paves way for new cancer drug 2Health News:Novel enzyme inhibitor paves way for new cancer drug 3Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 2Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 3Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 4Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 5Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 6Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 7Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 8Health News:China Yingxia International, Inc. Reports First Quarter 2008 Results 9[0] Haemacure announces webcast of presentation at Rodman & Renshaw 5th Annual Global Healthcare Conference[0] Tempo Participacoes Announces Increase of 34% in EBITDA and of 25% in Net Revenue for the 1Q08[0] Novel enzyme inhibitor paves way for new cancer drug[0] China Yingxia International, Inc. Reports First Quarter 2008 Results
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