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Scientists discover Amazon river is 11 million years old

LIVERPOOL, UK 29 July 2009: Researchers at the University of Liverpool have discovered that the Amazon river, and its transcontinental drainage, is around 11 million years old and took its present shape about 2.4 million years ago. University of Liverpool researchers, in collaboration with the...

Scientists discover gene mutation responsible for hereditary neuroendocrine tumor

SALT LAKE CITY University of Utah researchers and their colleagues have identified the gene that is mutated in a hereditary form of a rare neuroendocrine tumor called paraganglioma (PGL). The gene, called hSDH5, is required for activation of an enzyme complex that plays a critical role in the che...

UCLA researchers discover new molecular pathway for targeting cancer, disease

A UCLA study has identified a way to turn off a key signaling pathway involved in physiological processes that can also stimulate the development of cancer and other diseases. The findings may lead to new treatments and targeted drugs using this approach. In the study, which is currently ava...

Munich researchers discover new target for tailored antibiotics

This release is available in German . More and more strains of bacteria are developing resistance to previously life-saving antibiotics. Researchers at TUM, the Technische Universitaet Muenchen, have shed light on a metabolic step that appears in many aggressive microorganisms -- such as t...

University of Leicester researchers discover new fluorescent silicon nanoparticles

Researchers in the Department of Physics and Astronomy at the University of Leicester have developed a new synthesis method, which has led them to the discovery of fluorescent silicon nanoparticles and may ultimately help track the uptake of drugs by the body's cells. Dr Klaus von Haeften expla...

Children's Hospital Oakland scientists first to discover new source for harvesting stem cells

June 23, 2009Oakland, Calif. A groundbreaking study conducted by Children's Hospital & Research Center Oakland is the first to reveal a new avenue for harvesting stem cells from a woman's placenta, or more specifically the discarded placentas of healthy newborns. The study also finds there are fa...

Scientists discover new genetic immune disorder in children

Your immune system plays an important function in your healthit protects you against viruses, bacteria, and other toxins that can cause disease. In autoinflammatory diseases, however, the immune system goes awry, causing unprovoked and dangerous inflammation. Now, researchers from the National Ins...

Penn researchers discover genetic risk factor for testicular cancer

(PHILADELPHIA) Researchers at the University of Pennsylvania School of Medicine have uncovered variation around two genes that are associated with an increased risk of testicular cancer. Testicular cancer is the most common cancer among young men, and its incidence among non-Hispanic Caucasian ...

Queen's scientists discover eco-friendly wood dissolution

Scientists at Queen's University Belfast have discovered a new eco-friendly way of dissolving wood using ionic liquids that may help its transformation into popular products such as bio fuels, textiles, clothes and paper. Dr Hctor Rodrguez and Professor Robin Rogers from the University's School...

UCLA scientists discover ultrasonic communication among frogs

UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum , the frog lives only on the Southeast Asian island of Borneo. Ultrasounds are high-p...

Neuroscientists discover long-term potentiation in the olfactory bulb

CLEVELAND May 3, 2009 Ben W. Strowbridge, Ph.D, associate professor of Neuroscience and Physiology/Biophysics, and Yuan Gao, a Ph.D. student in the neurosciences program at Case Western Reserve University School of Medicine, are the first to discover a form of synaptic memory in the olfactory bul...

Researchers discover that gene switches on during development of epilepsy

WINSTON-SALEM, N.C. A discovery made by researchers at Wake Forest University School of Medicine while studying mice may help explain how some people without a genetic predisposition to epilepsy can develop the disorder. In a study published this month in the Journal of Neuroscience , senior ...

TGen researchers discover possible way to block the spread of deadly brain tumors

PHOENIX, Ariz. April 17, 2009 Researchers at the Translational Genomics Research Institute (TGen) may have found a way to stop the often-rapid spread of deadly brain tumors. A gene with the playful-sounding name NHERF-1 may be a serious target for drugs that could prevent malignant tumors fro...

Penn biologists discover how 'silent' mutations influence protein production

PHILADELPHIA - Biologists at the University of Pennsylvania have revealed a hidden code that determines the expression level of a gene, providing a way to distinguish efficient genes from inefficient ones. The new research, which involved creating hundreds of synthetic green-glowing genes, provid...

Researchers discover primer to plant defense system

OAK RIDGE, Tenn., April 3, 2009 -- By identifying a novel compound that primes a plant's immune system, researchers at Oak Ridge National Laboratory and the University of Chicago may be on a path to developing disease-resistant plants. In a paper published in Science , a team that includes Tim...

Researchers discover link between schizophrenia and diabetes

AUGUSTA, Ga. People with schizophrenia are at increased risk for type 2 diabetes, Medical College of Georgia researchers have found. In a study of 50 people newly-diagnosed with schizophrenia or a related psychotic disorder with no other known risk factors, 16 percent had either diabetes or an...

Mayo Clinic researchers discover and manipulate molecular interplay that moves cancer cells

JACKSONVILLE, Fla. Based on research that reveals new insight into mechanisms that allow invasive tumor cells to move, researchers at the Mayo Clinic campus in Florida have a new understanding about how to stop cancer from spreading. A cancer that spreads elsewhere in the body, known as metastasi...

Tiny but toxic: MBL researchers discover a mechanism of neurodegeneration in Alzheimer's disease

WOODS HOLE, MATiny, toxic protein particles severely disrupt neurotransmission and inhibit delivery of key proteins in Alzheimer's disease, two separate studies by Marine Biological Laboratory (MBL) researchers have found. The particles are minute clumps of amyloid beta, which has long been kno...

Plant biologists discover gene that switches on 'essence of male'

Biologists at the University of Leicester have published results of a new study into plant sex and discovered that a particular gene switches on 'the essence of male'. The study takes to a new level understanding of the genes needed for successful plant reproduction and seed production. Pro...

Scientists at CSHL discover mobile small RNAs that set up leaf patterning in plants

Cold Spring Harbor, N.Y. -- A key item in the developmental agenda of a plant leaf is the establishment of an axis that makes a leaf's top half distinct from its bottom half. This asymmetry is crucial for the leaf's function: it ensures that the leaf develops a flattened blade that is optimized fo...

Researchers discover gene mutations that cause childhood brain cancer

March 8, 2009 TORONTO Researchers funded by the Canadian Cancer Society have discovered eight similar genes that, when mutated, appear to be responsible for medulloblastoma the most common of childhood brain cancers. The findings are published today in the online edition of the journal Nature G...

Scientists at CSHL discover mobile small RNAs that set up leaf patterning in plants

Cold Spring Harbor, N.Y. -- A key item in the developmental agenda of a plant leaf is the establishment of an axis that makes a leaf's top half distinct from its bottom half. This asymmetry is crucial for the leaf's function: it ensures that the leaf develops a flattened blade that is optimized fo...

Why didn't Darwin discover Mendel's laws?

Mendel solved the logic of inheritance in his monastery garden with no more technology than Darwin had in his garden at Down House. So why couldn't Darwin have done it too? A Journal of Biology article argues that Darwin's background, influences and research focus gave him a viewpoint that preve...

Scientists discover why teeth form in a single row

A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study published today in the journal Science . When completely understood, the genetic program described in the study may help guide efforts to re-grow missing teet...

McMaster researchers discover new mode of how diseases evolve

Hamilton, ON (February 13, 2009) - Researchers of the Michael G. DeGroote Institute for Infectious Disease Research have discovered a new way that bacteria evolve into something that can make you sick. The finding, published in the Feb. 16 issue of the Proceedings of the National Academy of Sc...

While focusing on heart disease, researchers discover new tactic against fatal muscular dystrophy

NEW YORK (Feb. 8, 2009) Based on a striking similarity between heart disease and Duchenne muscular dystrophy, researchers at Columbia University Medical Center have discovered that a new class of experimental drugs for heart failure may also help treat the fatal muscular disorder. At first gla...

CSHL scientists discover how 'companion' cells to sperm protect them from genetic damage

Cold Spring Harbor, N.Y. In plant pollen grains, sperm cells, which carry the genetic material to be passed on to progeny, are cocooned within larger "companion" cells that are called pollen vegetative cells. These companions provide sperm with energy and nourishment, and push them towards their...

Scientists discover how deadly fungus protects itself

February 3, 2009 (Bronx, NY) Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered how a deadly microbe evades the human immune system and causes disease. The study, published in the journal Proceedings of the National Academy of Sciences ( PNAS ), may h...

Scientists discover 'hot spot' for toxic HABS off Washington coastline

A new study funded by NOAA and the National Science Foundation reveals that a part of the Strait of Juan de Fuca, which separates Washington state from Canada's British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and British Columbia coasts. Understa...

Weizmann Institute scientists discover how cancer cells survive a chemotherapy drug

What separates the few cancer cells that survive chemotherapy leaving the door open to recurrence from those that don't? Weizmann Institute scientists developed an original method for imaging and analyzing many thousands of living cells to reveal exactly how a chemotherapy drug affects each one....

Jefferson scientists discover a key protein regulator of inflammation and cell death

(PHILADELPHIA) Reporting in the journal Nature , researchers led by Emad Alnemri, Ph.D., professor of Biochemistry and Molecular Biology in the Kimmel Cancer Center at Jefferson, discovered a key protein component involved in inflammation. The protein, AIM2 (absent in melanoma 2), is involved...

JDRF-funded researchers discover proteins regulating human beta cell replication

NEW YORK, January 16, 2009 - Researchers at the University of Pittsburgh School of Medicine, funded by JDRF, have discovered that adult beta cells have the ability to replicate with the help of a protein known as cdk6. This research was led by Andrew F. Stewart, M.D., a Professor of Medicine and ...

U-M researchers discover new genes that fuse in cancer

ANN ARBOR, Mich. Using new technologies that make it easier to sequence the human genome, researchers at the University of Michigan Comprehensive Cancer Center have identified a series of genes that become fused when their chromosomes trade places with each other. These recurrent gene fusions are...

Biologists discover link between CGG repeats in DNA and neurological disorders

MEDFORD/SOMERVILLE, Mass. Researchers have long known that some repetitive DNA sequences can make human chromosomes "fragile," i.e. appearing constricted or even broken during cell divisions. Scientists at Tufts University have found that one such DNA repeat not only stalls the cell's replication...

NYU scientists discover dangerous new method for bacterial toxin transfer

NEW YORK, Jan. 6, 2009 Scientists have discovered a new way for bacteria to transfer toxic genes to unrelated bacterial species, a finding that raises the unsettling possibility that bacterial swapping of toxins and other disease-aiding factors may be more common than previously imagined. In a ...

Burnham researchers discover 'on switch' for cell death signaling mechanism

LA JOLLA, Calif., January 5, 2009-- Scientists at Burnham Institute for Medical Research (Burnham) have determined the structure of the interactions between proteins that form the heart of the death inducing signaling complex (DISC), which is responsible for triggering apoptosis (programmed cell d...

Princeton researchers discover new type of laser

A Princeton-led team of researchers has discovered an entirely new mechanism for making common electronic materials emit laser beams. The finding could lead to lasers that operate more efficiently and at higher temperatures than existing devices, and find applications in environmental monitoring a...

CSHL scientists discover new way in which ubiquitin modifies transcriptional machinery

Cold Spring Harbor, N.Y. During gene transcription the process inside the nucleus of cells by which DNA, the genetic material, is copied into RNA molecules a large, ever-changing multiprotein complex is enlisted to assist the DNA-copying enzyme in its challenging job. Like an exquisitely ch...

Argonne scientists discover possible mechanism for creating 'handedness' in biological molecules

ARGONNE, Ill. (December 1, 2008) The basic molecules that make up all living things have a predetermined chirality or "handedness," similar to the way people are right- or left-handed. This chirality has a profound influence on the chemistry and molecular interactions of living organisms. The inc...

CSHL scientists discover a new way in which epigenetic information is inherited

Hereditary information flows from parents to offspring not just through DNA but also through the millions of proteins and other molecules that cling to it. These modifications of DNA, known as "epigenetic marks," act both as a switch and a dial they can determine which genes should be turned on o...
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