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Tag: "organ" at biology news

Hybrid grass may prove to be valuable fuel source

...ss or E-grass, grows from an underground stem-like organ called a rhizome. Miscanthus, a crop native to Asia and a relative of sugarcane, drops its slender leaves in the winter, leaving behind tall bamboo-like stems that can be harvested in early spring and burned for fuel. Rhizomatous grasses such as Mis...

Gene therapy to lower blood pressure just enough

...this reason it has promise in reducing some of the organ damage that occurs as a result of high blood pressure. One question that remains is whether the body will accept repeated injections of the viral vector or whether its immune system eventually react against it, said O'Malley. ...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

... muscle cells, and it turned out to be true at the organ level, also." The key to the U-M discovery was technology developed by Soichiro Yasuda, Ph.D., a post-doctoral fellow and co-first author of the study. He created a device to allow the simultaneous measurement of force and intracellular calcium conc...

New Lab Research May Help Those Deafened By Immune System Attack

...ound in the supporting cells that help make up the organ of Corti, a tiny but crucial structure inside the cochlea, or inner ear. Inside the organ of Corti are the ultra-sensitive hair cells, whose movement in response to vibrations creates the ne...

Monkeying around to improve organ transplantation

...ession of the T cells that attack the transplanted organ is needed. It was known that anergic T cells (imm...tigate whether this approach can induce indefinite organ allograft survival in vivo, in six rhesus monkeys. The authors stimulate recipient T cells from the...

Hormones and growth: The control of body size and developmental growth rate in fruit flies

... release of the hormone ecdysone from an endocrine organ called the prothoracic gland triggers larval molti...r new findings show that the prothoracic gland'the organ that releases ecdysone'itself acts as a size-sensing tissue. The researchers found that by manipulat...

Insight into our sight: A new view on the evolution of the eye lens

...stion in evolutionary biology: How could a complex organ with such special physical properties have evolved? In their new work, Shimeld and colleagues approached this question by examining the evolutionary origin of one crystallin protein family, known as the ?-crystallins. Focusing on sea squirts, invert...

AACR Favors 'full spectrum of stem cell research biology'

...ability to transform into the cells of every major organ system in the human body. If this characteristic can be controlled, then medical researchers could determine the signals that direct the development of human tissues, including cancers. # Bone marrow stem cells already have demonstrated their value ...

The very defensive caterpillar

...ere being produced by the so-called 'fat-body', an organ specialised in protein production. These proteins appear to be able to persist from the initial benign E. coli infection and then confer resistance against the second, usually lethal, infection by the pathogen. Using RNAi techniques workers at the Un...

No small feat: First ever gene therapy success for muscular dystrophy achieved

... of genes. And because CMD affects all muscles, an organ that accounts for 40 percent of body weight, gene therapy can only have real therapeutic benefit if it is able to reverse genetic defects in every cell of the body's 600 muscle groups. By using a miniature gene, similar in function to the one defect...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...often simultaneously suffer failure of other major organ systems. The most serious form of ARF is caused b... particularly when severe ARF occurs with multiple organ failure," Christof Westenfelder from the University of Utah explained. "Our laboratory has therefore...

Genomics researchers discover protein deficit that causes drug toxicity

...s with childhood leukemia, autoimmune diseases and organ transplants. The Mayo researchers say their finding advances the field of pharmacogenomics, which tailors medicine to a patient's personal genetic makeup. In the current issue of the Proceedings of the National Academy of Sciences, (http://www.pnas....

Molecular mechanism of feather formation found

...two proteins, which tend to play off each other in organ development, also are involved in the embryonic development of limbs, lungs, teeth and the gut. In the current study, appearing in the Aug. 16 Proceedings of the National Academy of Sciences (PNAS Online, Aug. 8), Fallon's team and collaborators sho...

Israeli scientists successfully transplant frozen-thawed ovaries in sheep

...zing techniques may have potential for other human organ transplants, which are currently done using only f... we have been able to demonstrate long-term intact organ cryopreservation with restored function following thawing and transplantation, in a large animal for...

Drugs from the deep blue

... affect calcium channels range from drugs given to organ transplant patients to suppress the immune system, to treatments for high blood pressure and heart disease. Pessah's research group works with calcium channel modulators and other biomolecules derived from plants and scorpion venom. But when Pessah ...

Tissue regeneration operates differently than expected

...are participating in the repair and maintenance of organ functions. The controversial idea is that adult s...that they are able to transmutate from one type of organ cell to another. If that is the case, bone marrow cells would be able to change into lots of differe...

Human brain is still evolving

... evidence that the human brain, the most important organ that distinguishes our species, is evolutionarily plastic," he said. Finding evidence of selection in two such genes is mutually reinforcing, he pointed out. "Finding this effect in one gene could be anecdotal, but finding it in two genes would make ...

New cell transplantation technique restores insulin production in diabetics

...s, fractures and amputations, destruction of major organ function (e.g., the kidneys) and cardiovascular disease that can result in complications such as heart attacks. Both genetic and environmental factors contribute to the disease. ...

Minimally Invasive Cancer Treatments Highlighted

...s delivering chemotherapy directly to the affected organ (chemoembolization), killing the tumor with heat (radiofrequency ablation) or freezing the tumor (cryoablation) to treat cancer locally, without harming the healthy cells in the body. Targeted delivery of gene- and immuno-therapies are new frontiers ...

Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue

... on a local area of the skin or inside an internal organ using a fiber-optic device." Dai has applied for a patent on the procedure through Stanford's Office of Technology Licensing (OTL). He also has patented another technique that uses pulses of near-infrared light to shake the DNA molecule loose from t...

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