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Tag: "dying" at biology news

Wisconsin scientists grow critical nerve cells

...n in the lab, scientists could, in theory, replace dying motor neurons to restore function and alleviate the symptoms of disease or injury. Much sooner in the future, the advance will allow researchers to create motor neuron modeling systems to screen new drugs, says study leader Su-Chun Zhang, an assista...

Scientists discover the cellular roots of graying hair

...tists traced the loss of hair color to the gradual dying off ofadult stem cells that form a reservoir that spawns a continuous supplyof new pigment-manufacturing cells, called melanocytes, that give hairits youthful hues. Not only do the non-specialized stem cells becomedepleted, they also progressively ma...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...tists traced the loss of hair color to the gradual dying off ofadult stem cells that form a reservoir that spawns a continuous supplyof new pigment-manufacturing cells, called melanocytes, that give hairits youthful hues. Not only do the non-specialized stem cells becomedepleted, they also progressively ma...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...tists traced the loss of hair color to the gradual dying off ofadult stem cells that form a reservoir that spawns a continuous supplyof new pigment-manufacturing cells, called melanocytes, that give hairits youthful hues. Not only do the non-specialized stem cells becomedepleted, they also progressively ma...

Highly adaptable genome in gut bacterium key to intestinal health

...lar in the Center for Genome Sciences. "Instead of dying off when its usual source of food is gone, B. theta has evolved an elaborate mechanism for sensing changes in its nutrient landscape and quickly changing its dietary preferences so that it can use whatever is most plentiful. In fact, it can call on a...

Simple drug has the potential to save many lives threatened by malaria

...e and effective way to reduce the risk of children dying before reaching hospital. Providing effective antimalarial treatment close to home to reduce delay has the potential to save many lives, they conclude. http://press.psprings.co.uk/bmj/february/ppr334.pdf">You can read the paper here. ...

White blood cell waste disposal system plays critical regulatory role

...mmunity, suggests that the process for disposal of dying neutrophils is actively linked to neutrophil production. A clear understanding of the processes that control neutrophil turnover may contribute to the development of future therapeutics for conditions characterized by abnormal numbers of these critic...

Implanted Devices Detect High-Risk Heart Failure Patients

...hts into which patients might be at higher risk of dying suddenly from their disease, according to researchers at Duke University Medical Center. Besides maintaining optimal electrical stimulation to the heart, these CRT-D (cardiac resynchronization therapy with defibrillation) devices are giving cardiolo...

Low level of extinction during ice age linked to adaptability

...esistant to extinction," he said. "Yet species are dying off at an alarming rate. It may be that humans have altered the environment so much that we are now causing the extinction of species that should be relatively immune. Though it's difficult to say exactly what the implications are for the world we li...

Alzheimer's cognitive decline slowed

...ied and found robust growth of extensions from the dying cholinergic cells near the site of growth factor gene delivery. Cholinergic neuron loss is a cardinal feature of Alzheimer's disease, a progressive brain disorder affecting memory, learning, attention and other cognitive processes. "If validated in ...

White Blood Cell 'Waste Disposal' System Plays Critical Regulatory Role

...mmunity, suggests that the process for disposal of dying neutrophils is actively linked to neutrophil production. A clear understanding of the processes that control neutrophil turnover may contribute to the development of future therapeutics for conditions characterized by abnormal numbers of these critic...

Emergence of cancer as major cause of childhood death in developing countries is not being adequately addressed

...tric cancer is occurring as the number of children dying from infectious diseases is being reduced through the efforts of the World Health Organization and international charities, the researchers say. Health care organizations and charities have traditionally focused on relatively inexpensive strategies ...

Researchers discover stem cell 'guide' that may be key for targeting neural stem cell treatments

...egions of the brain where they can replace old and dying cells, a finding that suggests how stem cell thera...l stem cells create new neurons to replace old and dying ones. One area is the subventricular zone of the lateral ventricles, which are fluid-filled cavities...

Morphine for Chest Pain Increases Death Risk

... were given morphine had 48 percent higher risk of dying and 34 percent higher risk of suffering another he...le patients with acute STEMI are at higher risk of dying within 30 days of their hospital stay, patients with non-STEMI actually have a higher risk of dying ...

Scripps research scientists solve structure of a critical innate immune system protein

... Immunology. "All of us in the TLR field have been dying to see the structure of a TLR ectodomain since the innate immune function of TLRs was discovered seven years ago. This will open the way to a great many other studies that will allow us to understand exactly how signaling occurs." Significantly, say...

New protein vital for immune response is found in surprise location

...oduce an overabundance of MAVS were protected from dying from viral infection. "These results raise the possibility that variations in the expression levels of MAVS may endow different individuals with varying ability to fight off viral diseases," said Dr. Chen, who also is an investigator with the Howard...

Virologist finds contagious equine flu in dogs

...ality, this is going to result in a number of dogs dying from it." The Centers for Disease Control and Prevention (CDC) in Atlanta sequenced the virus' entire genome and found all the segments were from the equine virus. This is unusual, because flu viruses will often swap genetic material with other fl...

Energy management in cells may hold key to cancer defense

...rgy regulation is essential for keeping cells from dying off too quickly. The study's results could signal new advances for combating cancerous tumor growth, but also type 2 diabetes and obesity. The study, published in the August 12 issue of the Journal of Biological Chemistry (JBC), was headed by Dr. L...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

...d the social consequences of so many young mothers dying and leaving behind children who may also be infected as well as orphaned, women deserve a separate strategy. He also points out that medical research suggests hormonal and developmental factors place young women at greater risk than men for contract...

Duke Experiments Boost Radiation's Cancer-Killing Effects

...on, said Dewhirst. "HIF-1 assists cancer cells in dying by a process of self-directed suicide called 'apoptosis,'" said Dewhirst. "If HIF-1 is inhibited prior to radiation, it will make the cell less sensitive to apoptosis and will thereby make the tumor cells more resistant to radiation." Moreover, beca...

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