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Tag: "type" at biology news

UW launches study testing adult stem cells for heart damage repair

...eart despite optimum medical intervention. This type of therapy - regenerative medicine - treats diseases by using growth factors, genes or stem cells to promote blood vessel or tissue growth," explains Amish Raval, head of cardiovascular regenerative medicine at UW Health. The goal with this approac...

University of Alberta researchers unravel intricate animal patterns

... 180 degrees, and compare this with the zigzagging type of pattern shown by the numerical simulations. Or we can think about the anti-predatory behaviour exhibited by some schools of fish--when a predator is nearby, the school contracts in a tight aggregation, to expand again when the predator is gone. An...

New cell type identified in cancer development

Scientists have discovered a new type of cell that appears to play a role in the development of cancer ?a highly volatile, precancerous stem cell that can either remain benign or become malignant, depending upon environmental cues. The finding may help define the role of cancer stem cel...

Elucidation of the genome for diabetics with DNA chips

The genome of patients with type 2 diabetes (DT2) has been elucidated, for the firs.... Initially, DNA from non-obese patients with type 2 diabetes and a family history of the disease was compared with DNA from 669 non-diabetic subjects ...

Scientists find potential 'off-switch' for HIV virus

...proach will work. "There is precedent for this type of treatment," he said. Though more research will be needed to develop drugs based on the Princeton scientists' "resistor" model, Weinberger said he hopes the discovery stimulates more research into potential gene-targeted therapies. "It woul...

Protein discovery targets antibiotic-resistant bacteria

A new type of protein discovered by Queen’s University researchers may be useful in developing treatments for antibiotic-resistant bacteria, such as those that cause food poisoning and typhoid. By solving the structure and activity of the protein ?called YihE...

Is there a pilot in the insect?

...ace at a vertical speed of zero. Reactions of this type to a headwind have been described countless times in insects and even in birds. They are also observed on the microhelicopter each time it faces a laboratory-produced headwind, reinforcing the hypothesis that flying creatures have an optic flow regul...

Instruction manual for creating a molecular nose

...orant receptors selected by the researchers were a type of G-protein coupled receptor taken from brown rats. The scientists were also able to prove that the odorant receptors maintained their biological functions by demonstrating the binding of odorants to the receptors. "We now have something akin to an ...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...the vaccine to be 88 percent effective against HPV type 45 and 54 percent effective against HPV type 31. "Overall, it is not a surprise that the vaccine offers protection against additional types of...

New biofuels process promises to meet all US transportation needs

...ogen from carbon-free sources and developing a new type of gasifier needed for the process. "Having said that, this is the first concept for creating a sustainable system that derives all of our transportation fuels from biomass," Agrawal said. Purdue has filed a patent for the concept. The approach...

The chimpanzee stone age

... back thousands of years. The authors suggest this type of tool use could have originated with our common ...ction and curation of raw materials for a specific type of work and projected usage; habitual reoccupation of sites where garbage and debris accumulate; and...

Does God answer prayer? ASU research says 'yes'

Does God or some other type of transcendent entity answer prayer? The answer, according to a new Arizona State University study published in the March journal Research on Social Work Practice, is “yes.?David R. Hodge, an assistant professor of social work in the College of Hum...

Scripps research team discovers a chemical pathway that causes mice to overeat and gain weight

... mice were clearly getting heavier than their wild type litter mates, the control mice," says Sanchez-Alav...hese data directly couple the lack of a particular type of inflammatory signaling via EP3R with leptin and insulin increase, glucose tolerance, and white fa...

Paleontologists discover new mammal from Mesozoic Era

... early mammalian ear from China is a rosetta-stone type of discovery which reinforces the idea that development of complex body parts can be explained by evolution, using exquisitely preserved fossils," said H. Richard Lane, program director in NSF's Division of Earth Sciences, which co-funded the discove...

Finnish scientists discovered a new approach to treat virus-induced lymphomas

...n for cancers with wt p53. PEL is a non-Hodgkin type lymphoma latently infected with KSHV, and it manifests as an effusion malignancy in Kaposi’s sarcoma patients. There are no current therapies effective against the aggressive KSHV-induced PEL. KSHV displays two patterns of infection: latent and lytic...

Breakthrough in understanding type-2 diabetes as key genes identified

...l their likelihood of developing diabetes mellitus type 2, commonly known as type-2 diabetes. The rese...c test to predict people's risk of developing this type of diabetes. "If we can tell someone that their genetics mean they are pre-disposed towards type-...

White blood cells in lung produce histamine seen in allergies

...e "how general this result might be. Does only one type of bacteria cause the effect, or do others, also? Is it limited to rodents, or does it carry forward to humans? And if it does, is the amount of histamine produced by neutrophils enough to make a clinical difference?" ...

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

...ffective agents may now be available for any given type of cancer, deciding which treatment regimen is likely to be the most effective and the least toxic is more complicated than ever," said Pierre Laurent-Puig, M.D., PhD, a professor of Oncology at University of Paris-Decartes. "Characterizing the facto...

Warming oceans threaten Antarctic glaciers

...nces, said: "Our assessment confirms that just one type of glacier in Antarctica is retreating today ?those that are seated in deep submarine basins and flow directly into the oceans. These glaciers are vulnerable to small changes in ocean temperature, such as those that have occurred over the 20th centur...

Selective marker found to indicate aggressive form of breast cancer

...breast cancer initiation. "Patients with this type of breast cancer are at high risk for recurrence,"...breast cancer are ruled out," DiRenzo said. "This type of breast cancer is generally difficult to manage, but several important studies have shown that it ...

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