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Tag: "organ" at biology news

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...huge:"You could print the scaffolding to create an organ in a day," he says....

Lack of enzyme turns fat cells into fat burners

...velop type 2 diabetes."This adds another tissue or organ that helps out in the process ofenergy maintenance," said Wakil. "ACC2 is potentially a key enzyme inthe regulation of weight, obesity, and related problems."Wakil and his colleagues studied the oxidation of fatty acid andglucose in cultures of fat c...

Placenta Is A Rich Source Of Blood Stem Cells

...n the embryo itself, but also in the placenta, the organ that nurtures the baby in utero. Meticulous exper...cells to the fetus. ''This research reveals a new organ for blood development,'' Orkin says. ''It is surprising that this role for the placenta has been ove...

Researchers add new tool to tumor-treatment arsenal

...e of the immunosuppressive drug rapamycin. Used in organ transplant patients, rapamycin and its derivatives have shown promising anti-tumor activity in phase I and II clinical trials. RAD001 lowers the amount of DNA-damaging agent needed by blocking p53's DNA-repair function, automatically killing the can...

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

...lls become T cells. The thymus is an immune system organ behind the breastbone that processes immature "precursor" immune cells into specialized T cells. T lymphocytes are specialized immune cells carrying proteins called receptors on their surface. The target that a T cell recognizes and attacks depends ...

Discovery Could Lead To Novel Approaches In HIV Treatment

...d the discovery of afunctional abnormality of this organ in HIV-infected individuals. Theteam of investigators led by Dr. Rafick-Pierre Sékaly, professor atUniversité de Montréal, scientist at the CHUM Research Centre, andScientific Director and Program Leader of CANVAC, publishes today itsdiscoveries in I...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...have the mutated gene, called hothead, that causes organ fusion like that seen in the flowers. The researchers used molecular markers - bits of DNA that help identify and locate genes in organisms - to determine whether a plant carried normal or mutant copies of the genes. "It seems that these hothead-con...

New RNA polymerase discovered in plants

...loral defects. The plants were having trouble with organ identity ?stamens tried to turn into petals, for instance. Our first hypothesis was that the fourth polymerase was involved with what are known as micro RNAs, which are known to regulate flower development, but that proved wrong." In a series of gen...

Sequencing of marine bacterium will help study of cell communication

... which lives in symbiotic harmony within the light organ of the bobtail squid, has helped a Virginia Tech microbiologist advance her research on quorum sensing, or how cells communicate and function as a community. Researchers studying the newly sequenced genome of the marine bacterium V. fischeri, descri...

Vascular structure and function improve with diet and exercise

...o relax. Left ventricular mass is a measure of end organ damage often following the onset of LVDF abnormalities. The brachial (arm) and carotid (neck) arteries were tested for intima-media thickness and arterial distensibility. Both reflect the health of the blood vessels. The thicker and less distensible...

Protein offers way to stop microscopic parasites in their tracks

...sses such as HIV or is suppressed to facilitate an organ transplant. "Toxoplasma is like a time bomb that can go off and cause serious trouble when the immune system wanes or is compromised," explains L. David Sibley, Ph.D., professor of molecular microbiology at Washington University School of Medicine. ...

Surprising findings reported about iron overload

...e, is prevalent in the South, and sometimes causes organ damage when severe iron deposition occurs due to inadequate control of iron absorption by the small intestine. The first major report of findings in the five-year, 100,000-person study will be published tomorrow, April 28, in The New England Journal...

World-first Living Donor Islet Cell Transplant A Success; Procedure Offers Promise For Diabetics

...onton Protocol is done with islets from brain-dead organ donors. Those islets are often severely injured fr...ays. The recipients use the same drugs to prevent organ rejection as are used in the Edmonton Protocol. Dr. Shapiro was invited to participate in the opera...

Iron exporter revealed that may explain common human disorder

...Left untreated, the hereditary disease can lead to organ failure. The new work, led by researchers at the Children's Hospital Boston and Harvard Medical School, finds that the protein ferroportin is the major, if not the only, iron exporter that functions in key sites of iron absorption and release in the...

Light therapy may combat fungal infections, new evidence suggests

...ents who lack a functioning immune system, such as organ transplant recipients, those with HIV/AIDS, and patients treated with steroids or cancer chemotherapy. The fungus' global importance as a health threat has therefore risen in parallel with the increase in immunosuppressive therapies and the worldwide...

Buying Time Through Hibernation on Demand

...s. While the notion of putting a human or a human organ into an oxygen-free state of biological limbo and then reversing the process at will with no ill effects may sound like science fiction, dozens of documented cases exist of humans surviving prolonged hibernation-like states with no lingering physical...

U-M team recovers ancient whale in Egyptian desert

...s. While the notion of putting a human or a human organ into an oxygen-free state of biological limbo and then reversing the process at will with no ill effects may sound like science fiction, dozens of documented cases exist of humans surviving prolonged hibernation-like states with no lingering physical...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

...found hypotension, inadequate tissue perfusion and organ failure. This often results in death." Previously, Dr. Hobbs and colleagues demonstrated in vitro that endothelial nitric oxide synthase (eNOS) also plays a pro-inflammatory role by facilitating iNOS expression. "eNOS is found almost exclusively in ...

Same-Sex Mating Discovered in a Toxic Fungus

...st commonly in immune-compromised patients such as organ transplant recipients and cancer patients -- whose immune systems are crippled by immunosuppressive drugs or chemotherapy -- and people with HIV/AIDS. The fungus' global importance as a health threat has therefore risen in parallel with the increased...

Cooperation is key—a new way of looking at MicroRNA and how it controls gene expression

...uced to defeat. Excessive inflammation can lead to organ failure and death, and this is exactly what happens when people are stricken with septic shock. Likewise, the loss of control of genetic expression is the underlying cause of various forms of cancer--for instance the overexpression of genes that caus...

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