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Bioartificial kidney under study at MCG

...body metabolizes calcium and phosphorus, stimulate red blood cell production, play a role in blood pressure regulation and clear and metabolize cytokines that help direct the immune system. The new device for kidney failure adds billions of kidney cells that can perform many of these important kidney fu...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

... thestomach and colon, organs where consumption of red meat has beenassociated with risk of cancer."Knowing the mechanism that this molecule uses to get into human cellsmay give us clues to possible solutions to the problems that it maycause in various situations," Varki said....

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...delyrecognized symptom is anemia, in which too few red blood cells areproduced, and the body is deprived of oxygen needed for energymetabolism. Iron deficiency causes wide-ranging symptoms from fatigue,weakness and cognitive deficits to serious heart complications anddevelopmental disorders. Iron deficie...

Leukemia Drug Breakthrough Study In New England Journal Of Medicine

...nts are anemic and require regular transfusions of red cells. In this study, 91 percent of the MDS patien...observations that the agent improved the growth of red blood cell precursors from MDS bone marrow. Celgene will submit the seminal findings of List's phase...

Sea skate experiment sheds light on human cell transport

...orator, Goldstein conducted an experiment with the red blood cells of skates to understand how these skin... channels, or gates, spring into action when skate red blood cells become engorged with water. Vesicles, or tiny fluid-filled sacs, carry these gates up to...

Plant hemoglobins: Oxygen handlers critical for nitrogen fixation

...nd give these specialized organs their distinctive red color. Legume root nodules accommodate bacteria, called rhizobia, that reduce atmospheric nitrogen to ammonia, which is subsequently used by the plant for growth and colonization of nitrogen-poor soils. Symbiotic nitrogen fixation is important for su...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...lecular level what is responsible for their bright red feathers. The work casts a new light on what is c...f the work are in a paper, "Distribution of unique red feather pigments in parrots," by McGraw and Mary Nogare, a parrot fancier from Snoqualmie, Wash., pu...

Transport System Smuggles Medicines Into Brain

...lecular level what is responsible for their bright red feathers. The work casts a new light on what is c...f the work are in a paper, "Distribution of unique red feather pigments in parrots," by McGraw and Mary Nogare, a parrot fancier from Snoqualmie, Wash., pu...

Scientists develop new color-coded test for protein folding

...itial batch of gold-cytochrome solution had a rosy red hue and a pH value of 10--about the same as an ove...ss that caused the solution to quickly change from red to blue as the acidity increased. The researchers were surprised to discover that, when the pH was ...

Study shows nanoshells ideal as chemical nanosensors

... deadly chemical agent."About 1/20th the size of a red blood cell, nanoshells are about thesize of a virus. They are ball-shaped and consist of a core ofnon-conducting glass that is covered by a metallic shell, typicallyeither gold or silver. The metal shell "captures" passing light andfocuses it, a prop...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...slands. Mostly arctic foxes and smaller numbers of red foxes were introduced to more than 400 islands. Byrd, who has been involved in restoration efforts in the Aleutian islands since 1971, said most of the islands had major breeding colonies of seabirds before the arrival of foxes. There are about 26 s...

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

...cells that produce cancerous white cells or faulty red cells and replace them with healthy stem cells fro...nated stem cells repopulate the blood with healthy red and white cells. The St. Jude team showed that the more copies of tiny rings of DNA called signal-j...

How an AIDS-Related Cancer Unleashes Inflammation

... patient with KS, you'll see that they are visibly red because of all the new blood vessels that KS produces," he said. In cell culture studies, the researchers found evidence of an “activation loop,?by which kaposin B activation of MK2 promotes even further MK2 activity by other proteins. The over-prod...

Protein offers way to stop microscopic parasites in their tracks

... least 1 million people per year through damage to red blood cells and clogging of the capillaries that feed the brain and other organs. Cryptosporidium, which causes diarrhea, vomiting and other symptoms, is one of the most common causes of water-borne disease in the world. "These other parasites are m...

Programmable cells: Engineer turns bacteria into living computers

...t Subhayu Basu programmed E. coli bacteria to emit red or green fluorescent light in response to a signal... a higher concentration of the signal chemical and red when they sensed a lower concentration. In a Petri dish, they formed a bull's-eye pattern -- a green...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...aid. Their research suggests that an inability of red blood cells to relax blood vessels through the rel...lood vessels by distorted, or "sickled," and rigid red cells, Stamler said. The new findings, for the first time, implicate abnormal vessel dilation by the...

Iron exporter revealed that may explain common human disorder

... ingredient of hemoglobin, the protein molecule in red blood cells that carries oxygen from the lungs to ... releases it into the bloodstream where developing red blood cells incorporate the iron into hemoglobin. When red blood cells die, macrophage cells consume...

New winter hulless barley has high protein

...eeding program is developing both traditional soft red winter wheat cultivars and new cultivars with unique and high-value end-use characteristics such as higher protein content, quality, and white seed color. The Virginia Tech wheat cultivars "Tribute" and "Renwood 3260" have a unique protein quality, m...

New insight into regulation of blood stem cells

...more copies of itself or differentiate into either red blood cells, various types of white blood cells, or platelets. The genes that control proliferation and differentiation have been difficult to study using traditional gene disruption methods because loss of genes thought to be critical for this proce...

Medical molecules designed to respond to visible light that can penetrate tissue

...r covered a flashlight with your hand and seen the red light that still comes through, then you have seen...he light absorber unit to one that responds to the red wavelength. "Investigations into polyazine supermolecular complexes containing Ru and Os with Rh ce...

Protein That Promotes Survival Of Stem Cells Might Be Key To Poor Leukemia Prognosis

...ic stem cells (HSC) give rise to all of the body's red and white blood cells and platelets has now been d...ial for maintaining blood cells throughout life as red and white cells and platelets die and must be replaced. HSCs are also needed to rebuild the blood sy...

Sickle cell and protection against malaria

...ed host proteins expressed on the malaria-infected red cell surface. ### Citation: Williams TN, Mwangi TW, Roberts DJ, Alexander ND, Weatherall DJ, et al. (2005) An immune basis for malaria protection by the sickle cell trait. PLoS Med 2(5): e128. ...

Nanoparticle Breast Cancer Drug Approved by FDA

... tiny particles (nanoparticles 100th the size of a red blood cell) in which the active chemotherapeutic drug, paclitaxel, is bound to a naturally occurring protein called albumin. By using this nanotechnology, the active component (paclitaxel) can be delivered into the body at a 50 percent higher dose o...

First technology to remove prions that cause vCJD from blood launched

...rions that may be the causative agent of vCJD from red cells, the most commonly transfused blood componen...ater this year or in early 2006. Of the 40 million red cell units collected annually across the industrialized world, 2.5 million are collected in the UK a...

At long last, scientists figure out how plants grow

...d by the developing seeds promotes the growth of a red and juicy fruit. Another protein called ABP1 (Auxin Binding Protein 1) has previously been shown to bind auxin. But unlike TIR1 and auxin, it remains unclear whether the pairing of ABP1 and auxin actually stimulates plant growth. The research repor...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...oplankton species produce harmful blooms, known as red or brown tides, which release toxins in the water that can poison mollusks and fish. Excessively large blooms can also overwhelm a marine ecosystem by depleting oxygen in the water. Scientists suspect that many harmful blooms are artificially fueled ...

Affymetrix Launches New Globin-Reduction Kits and Protocol Developed with PreAnalytiX

...bin mRNA levels contributed from a fraction of the red blood cells have typically masked the less abundant, but more important, changes of gene expression associated with white blood cells, such as lymphocytes and monocytes. Counteracting the effects of globin mRNA during target preparation significantly...

Future diabetes drugs may target new protein interaction

...other scientists reported that a compound found in red wine activated yeast's sirtuin1-equivalent and ext...ports have shown that drinking moderate amounts of red wine is associated with a longer life for people. But at this point, knowing for sure whether sirtu...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...other scientists reported that a compound found in red wine activated yeast's sirtuin1-equivalent and ext...ports have shown that drinking moderate amounts of red wine is associated with a longer life for people. But at this point, knowing for sure whether sirtu...

Computational verification of protein-protein interactions by orthologous co-expression

...other scientists reported that a compound found in red wine activated yeast's sirtuin1-equivalent and ext...ports have shown that drinking moderate amounts of red wine is associated with a longer life for people. But at this point, knowing for sure whether sirtu...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...other scientists reported that a compound found in red wine activated yeast's sirtuin1-equivalent and ext...ports have shown that drinking moderate amounts of red wine is associated with a longer life for people. But at this point, knowing for sure whether sirtu...

How A Latent Virus Eludes Immune Defenses

...t produce any proteins. No viral proteins means no red flags for immune cells. If the virus targets one of the many cell types that rarely divide, it’s relatively safe while latent. But some viruses, like the gamma-herpesvirus, infect B cells of the immune system, which occasionally divide. The gamma-her...

Touching Molecules With Your Bare Hands

...t produce any proteins. No viral proteins means no red flags for immune cells. If the virus targets one of the many cell types that rarely divide, it’s relatively safe while latent. But some viruses, like the gamma-herpesvirus, infect B cells of the immune system, which occasionally divide. The gamma-her...

NHGRI targets 12 more organisms for genome sequencing

..., the gray short-tailed opossum, the platypus, the red flour beetle, the domestic cat, the flatworm Schimdtea mediterranea, more species of fruit fly and several species of fungi. ...

Primates on the brink

... Perrier's sifaka of Madagascar and the Tana River red colobus of Kenya are now restricted to tiny patche...r endangered primates. For example, Miss Waldron's red colobus, which has gone decades without a live sighting, was replaced by the Bioko red colobus to sh...

While on trail of dioxin, scientists pinpoint cancer target of green tea

... flavonoids found in broccoli, cabbage, grapes and red wine that are known to help prevent cancer. The team had been working on other chemicals to try to stop AH activity. "We initially hypothesized that EGCG would work in the same way as other AH antagonists, by binding directly to it. We were complete...

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

... reduce the time of clam flat closures (related to red tide)." Betty Twarog, a neurophysiologist who wor... that clams that came from areas with a history of red tides had less sensitivity to the toxins than did clams from an area with no such history. They show...

Alien woodwasp, threat to US pine trees, found in N.Y.

... noctilio Fabricius, an Old World woodwasp, raises red flags across the nation because the invasive insect species has devastated up to 80 percent of pine trees in areas of New Zealand, Australia, South America and South Africa. If established in the United States, it would threaten pines coast-to-coast,...

Life detection instrument passes key test on road to Mars

...dizing, acidic soil, which is similar to the rusty red oxidized iron surface of Mars. Skelley and colleagues Pascale Ehrenfreund, professor of astrochemistry at Leiden University in The Netherlands, and JPL scientist Frank Grunthaner visited the desert last year, but were not able to test the complete, i...

Malaria mechanism revealed

...a protein that enables malaria parasites to invade red blood cells, researchers have uncovered valuable c...n, merozoite-stage parasites ("merozoites") invade red blood cells, leading to clinical symptoms and in many cases, death. "Niraj Tolia [the first author ...

Two studies document rise of superbugs in the environment

...ity-acquired MRSA infections in Texas should raise red flags for health care workers everywhere. "There have been deaths related to this organism, although the vast number are skin and soft tissue infections," said Sheldon Kaplan, MD, lead author of the Texas study. He added that because of this "very dr...

Recombinant DNA technology may enable oral, rather than injectable, delivery of protein drugs

...mone, and erythropoietin, a medication to increase red blood cell counts." Recombinant DNA technology has and will enable the pharmaceutical industry to produce safer, more pure and more effective versions of therapeutic proteins, Shen adds. "Since recombinant therapeutics utilize human proteins, they ...

Attacks of King George III's madness linked to key metabolism molecule

...uilding block of the oxygen-carrying hemoglobin in red blood cells. The complex synthesis requires eight different enzymes, and when any of them is deficient because of a mutation, the process is blocked. The resulting back up of "precursor" substances is toxic, and can cause a range of symptoms, includi...

Gene expands malaria's invasion options

...dium falciparum uses different pathways to invade red blood cells, evading the body's immune system and ...r worldwide. Some P. falciparum strains invade red blood cells via protein receptors on the surface that contain a sugar known as sialic acid. If scien...

Measuring hidden parasites in falciparum malaria

...pe, but this method ignores parasites which are in red blood cells trapped (sequestered) in the capillari... is liberated into the blood when malaria-infected red cells spilt. Using this method in 337 patients with varying severity of falciparum malaria they foun...

Looks matter to female barn swallows

...e males' breast and belly feathers. If the male's red breast is not as dark as other males in the popula...ed their throats, breast and belly feathers with a red marker to enhance their feathers to match the darkest -- and most attractive -- males in the populat...

Logging changed ecological balance for monkeys, damaged health

...s impact. The samples came from red-tailed guenon, red colobus (Piliocolobus tephrosceles) and black-and-...e to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are now recovering. The black-and-white colobus, perhaps due t...

Affymetrix and ParAllele Launch Industry's Most Comprehensive Product Line for Targeted Genotyping

...s impact. The samples came from red-tailed guenon, red colobus (Piliocolobus tephrosceles) and black-and-...e to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are now recovering. The black-and-white colobus, perhaps due t...

New technique rapidly detects illness-causing bacteria

...in a test tube and a positive result shows up as a red line on a strip, much like a pregnancy test. Newly...rip on a membrane. Since the reporter probe with a red dye is also attached to the rRNA molecule, as the material collects on a zone on the membrane, it tu...

President Bush's cut to AIDS prevention in Africa would be devastating

...s impact. The samples came from red-tailed guenon, red colobus (Piliocolobus tephrosceles) and black-and-...e to decline 28 years later," Gillespie said. "The red colobus numbers declined at first but are now recovering. The black-and-white colobus, perhaps due t...

Tagging pathogens with synthetic DNA 'barcodes'

... of intensity of green light is four times that of red light, for example, identifies a "4G1R" probe. The researchers say that up to 1,000 different codes can be created using only three fluorescent dyes. To amplify the signals, the researchers attached many DNA probes to the surface of polystyrene micr...

Elderly mice yield clues to the process of growing old

... muscle mass, weakened bones and fewer circulating red blood cells. Mitochondria are structures within cells that provide energy for cells to move, divide, contract and secrete products vital for the health of organisms. "We think that the key to what is happening in aging is that as (genetic) mutations...

Discovery suggests why stem cells run through stop signs

... virtually any cell type found in the body, from a red blood cell to a muscle cell to a brain cell. But no one really knows why stem cells continue to divide and renew themselves long after the point where other cells stop dividing. Now scientists at Northwestern University and the University of Washing...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...the image on the left shows a culture labeled with red quantum dots. Click on the start button to see how much the protein fades compared with the quantum dots over a period of 10 minutes. By comparison, the new quantum dot method takes one to two hours and is even more sensitive than real time PCR. "It...

Team of international scientists departs today to discover the unknown in China's Himalayan region

...0 found nowhere else. The golden monkey, giant and red pandas are among the threatened species found only in this hotspot. The biodiversity hotspots are 34 regions worldwide where 75 percent of the planet's most threatened mammals, birds, and amphibians survive within habitat covering just 2.3 percent ...

Simple sea sponge helps scientists understand tissue rejection

...ona, has found the perfect ally in this quest: the red beard sea sponge, an Atlantic species that grows a...rom just north of Cape Cod down to Florida. The red beard sponge (Microciona prolifera) has a cell-to-cell recognition system that, on a basic level, is...

Women cautioned against using herbal supplements

...e soy or herbal supplements, such as black cohosh, red clover and ginseng, should do so with care, says a..., little evidence exists for beneficial effects of red clover, and no benefit was reported for ginseng, evening primrose oil or dong quai. In the 16 studie...

Menopause Symptoms May Come Back After Stopping Menopausal Hormone Therapy

...e soy or herbal supplements, such as black cohosh, red clover and ginseng, should do so with care, says a..., little evidence exists for beneficial effects of red clover, and no benefit was reported for ginseng, evening primrose oil or dong quai. In the 16 studie...

NHGRI Selects 13 More Organisms for Genome Sequencing

...peline include: macaque, orangutan, cow, platypus, red flour beetle, several additional species of fungi and domestic cat. A complete list of organisms and their sequencing status can be viewed at www.genome.gov/10002154. To learn more about the rapidly growing field of comparative genomic analysis, go ...

Possible treatment found for 'chemobrain'

...peline include: macaque, orangutan, cow, platypus, red flour beetle, several additional species of fungi and domestic cat. A complete list of organisms and their sequencing status can be viewed at www.genome.gov/10002154. To learn more about the rapidly growing field of comparative genomic analysis, go ...