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Mechanism for the captation of nutrients in plants- unknown to date
Up to now it was thought that nutrients penetrated the interior of plant cells by means of substance-specific transporters. Nevertheless, researchers at the Agrobiotechnology Institute at the Public University of Navarra have shown that the nutrients (saccharose, amino-acids, etc.) penetrate the cells basically through an "endocitic",... view more... (2005-05-06)
The difference between fish and humans: scientists answer century-old developmental question
Embryologists at UCL (University College London) have helped solve an evolutionary riddle that has been puzzling scientists for over a century. view more (2007-10-11)
Canadian research breakthrough holds promise for development of effective cancer therapies
Researchers Dr. Marc Therrien at the Institute for Research in Immunology and Cancer (IRIC) of the Université de Montréal, and Dr. Frank Sicheri, at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital in Toronto, have discovered a new target that may be instrumental in the development of new, more effective cancer... view more... (2009-09-03)
How mirror neurons allow us to learn and socialize by going through the motions in the head
The old adage that we can only learn how to do something by trying it ourselves may have to be revised in the light of recent discoveries in neuroscience. view more (2008-12-19)
Quantum biology — Powerful computer models reveal key biological mechanism
Using powerful computers to model the intricate dance of atoms and molecules, researchers at Rensselaer Polytechnic Institute have revealed the mechanism behind an important biological reaction. view more (2007-01-17)
Bladder cells feel stretch
Japanese research group led by Prof. Makoto Tominaga and Dr. Takaaki Sokabe (National Institute for Physiological Sciences: NIPS), and Prof. Masayuki Takeda, Dr. Isao Araki and Dr. Tsutomu Mochizuki (Yamanashi Univ.), found that bladder urothelial cells have a sensor for stretch stimulation. view more (2009-08-07)
A cancer gene causing tumours by a 'double-whammy' mechanism also reveals the key to a cure
Scientists at the Babraham Institute have discovered that a tiny change in a protein involved in cell survival is responsible for abnormal cell activity in the early stages of cancer. The protein, known as Bcl-xL, normally protects cells from dying; and when the DNA in cells becomes damaged, Bcl-xL is modified so that it no longer keeps the cells... view more... (2004-01-21)
Accumulated bits of a cell's own DNA can trigger autoimmune disease
A security system wired within every cell to detect the presence of rogue viral DNA can sometimes go awry, triggering an autoimmune response to single-stranded bits of the cell's own DNA, according to a report in the August 22nd issue of the journal Cell, a Cell Press publication. view more (2008-08-22)
T-beta-RIII joins the fight against breast cancer
Although the soluble factor TGF-beta has been shown to suppress the growth of tumor cells in the early stages of breast cancer, high levels of TGF-beta during the later stages of the disease are associated with a poor outcome. view more (2006-12-08)
Gene against bacterial attack unravelled
Dutch researcher Joost Wiersinga from AMC Medical Centre in Amsterdam has unravelled a genetic defence mechanism against the lethal bacteria Burkholderia pseudomallei. The research is the next step towards a vaccine against this bacterium suitable for bioweapons. view more (2008-10-29)
Natural mechanism for immune suppression paves way for cancer trials
A natural mechanism pirated by tumors and HIV to evade the immune response is opening the door to better treatment for these conditions, researchers say. view more (2007-03-29)
Selfing DNA prevents genomes from mixing
Genomes of multicellular organisms are one of the greatest mysteries of biology. The more is discovered about them, the more questions are to be answered. One of such questions is connected with the size of a genome. As is known since the middle of the 20th century, the level of organization of an organism does not depend on the genome size, i.e.,... view more... (2002-10-11)
Mechanism in cells that generate malignant brain tumors may offer target for gene therapy
Researchers at Cedars-Sinai Medical Center's Maxine Dunitz Neurosurgical Institute who first isolated cancer stem cells in adult brain tumors in 2004 have now identified a molecular mechanism that is involved in the development of these cells from which malignant brain tumors may originate. view more (2008-10-27)
Argonne scientists pinpoint mechanism to increase magnetic response of ferromagnetic semiconductor
When squeezed, electrons increase their ability to move around. In compounds such as semiconductors and electrical insulators, such squeezing can dramatically change the electrical- and magnetic- properties. view more (2009-02-26)
UCR-led study identifies crucial mechanism involved in immune response against viruses
A research team led by UC Riverside scientists has shown that the common fruit fly can serve as an excellent model for studying the immunity animals are born with for fighting viral infections. view more (2006-03-24)
Retinol for combating leukemia cells
Vitamin A, also known as retinol, is present in milk, liver, egg yolk, butter and other foodstuffs and as carotene in vegetables that have a yellow-orange colour, such as carrots and pumpkins. view more (2006-01-09)
Identified mechanism in the malaria parasite to help it adapt to infected individuals
Plasmodium falciparum is responsible for the most severe forms of human malaria. Invasion of host red blood cells is an essential step of the complex life cycle of this parasite. view more (2007-08-03)
Malicious at the Push of a Button
"Molecular switch" turns food bacteria into dangerous germ view more (2005-03-08)
Scientists unlock solid tumor treatment genetic secrets
A biochemical mechanism that cells use to cope with hypoxia (lack of oxygen) actually cooperates with a less well-known mechanism that helps increase the expression of those hypoxia-sensitive genes. view more (2005-12-02)
Scientists decipher the formation of lasting memories
Researchers at Karolinska Institutet have discovered a mechanism that controls the brain's ability to create lasting memories. In experiments on genetically manipulated mice, they were able to switch on and off the animals' ability to form lasting memories by adding a substance to their drinking water. view more (2009-11-11)
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