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Tag: "mimicking" at biology news

Bioartificial kidney under study at MCG

...lp turn the tide for some patients by more closely mimicking the many important functions of the kidney. In ICUs today, doctors may opt for newer continuous dialysis therapies in which patients with renal failure receive dialysis around the clock. With more standard intermittent therapy, patients get several ...

Source of molecular triggers in cutaneous T cell lymphoma identified

...dermatology set up a physiologic laboratory system mimicking the tight relationship in vivo between CTCL cells and LC. The research team considered three broad categories of antigen as the source of the signal: the protein products of tumor viruses, of mutated genes, and of normal but usually inactive genes. ...

U-M scientist to talk about tissue engineering at AAAS

... make new tissue in a perfect condition. Now we're mimicking what can really happen in a person, and we don't know if the rules of regeneration might be totally different," said Paul Krebsbach, associate professor at the U-M School of Dentistry. Krebsbach is scheduled to participate in a panel titled "Tissue ...

Scientists discover unique microbe in California's largest lake

... ofAcaryochloris' ability to live independently by mimicking theenvironment created by the original host. In the open ocean, whichitself is nutrient poor, the host animal or plant provided anutrient-rich environment with relatively high amounts of infraredlight; in the Salton Sea, the waters themselves create ...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

...teria to changing concentrations of an antibiotic, mimicking the concentration profile present in a patient at the actual site of an infection. They then measure how quickly the bacteria are killed or see if they regrow, and use mathematical modeling to estimate the optimal dose. “Based on the results in the ...

Strongest proof yet found for prion hypothesis

...s Joaquín Castilla, Paula Saá and Claudio Hetz. By mimicking the natural mechanism of prion formation but doing so at a much higher rate, PMCA made it possible to produce the large quantities of prion protein necessary for the success of the experiments and opened the door to further TSE studies. According to ...

Disease progression model of pancreatic cancer developed by Penn researchers

...–further emphasizing the accuracy of this model in mimicking human pancreatic cancer. To understand the progression of pancreatic cancer, Hingorani and colleagues studied cell lines derived from primary tumor and metastasized cells. From this, the researchers established the occurrence of genomic instability ...

Researchers make surprise discovery that some neurons can transmit three signals at once

... the excitatory neurotransmitter glutamate, and by mimicking excitatory synapses, can stimulate NMDA receptors. "It first appeared odd to us that an immature inhibitory synapse would want to release an excitatory neurotransmitter. After all, this contradicts the most basic principles that have defined the fie...

Innovative coating could give medical implants a longer life

By mimicking an adhesive protein secreted by mussels and a polymer that repels cells and proteins, researchers at Northwestern University have designed a versatile new two-sided coating that could breathe life into medical implants. Currently the longevity of ce...

Researchers Identify Cause of Early Bird Sleep Disorder

...the same gene change made the mice early risers -- mimicking what was seen in humans with FASPS. So, studies of all three organisms -- flies, mice and humans -- "will help us understand the similarities and differences" in how the gene works in different settings, in different genetic backgrounds, he said. Ex...

Researchers make 'embryonic-like' stem cells from umbilical cord blood

...to cultivate greater numbers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so w...

Insight into the processes of 'positive' and 'negative' learners

...to cultivate greater numbers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so w...

Researchers propose measures to curb lion attacks in Tanzania

...to cultivate greater numbers of cells in equipment mimicking the effects of space microgravity. "Using Synthecon's bioreactors, originally designed by NASA, means the cells are able to expand faster, giving us a greater supply to work with," Dr Forraz said. "This system provides more cells for more tests, so w...

Genetically engineered animals help in scientific research that may benefit children

...inFrance. "This animal model has the advantage of mimicking in a short time the different stages of chronic kidney disease. The combination of genetically engineered animals and this animal model has helped us to decide which molecules to study, or which might be interesting targets for drug development in hu...

Gaining ground in the race against antibiotic resistance

... bacteria hosting the un-evolved enzyme. "We were mimicking what is going on in the doctor's clinic -- putting selection pressure on the enzyme by giving higher doses of antibiotic," said Vila. "The only ones to survive will be those that have an enzyme that can work more efficiently." The researchers condu...

Scientists use gene transfer technology and common virus to block neuropathic pain in animals

...cians have drugs that block neural transmission by mimicking the actions of inhibitory agents like GABA, but it's difficult to give these drugs in adequate doses, because the same drug that blocks pain also interferes with brain activity, leaving people drowsy and unable to think clearly. “What we need is a w...

Scientists use gene transfer technology and common virus to block neuropathic pain

...cians have drugs that block neural transmission by mimicking the actions of inhibitory agents like GABA, but it's difficult to give these drugs in adequate doses, because the same drug that blocks pain also interferes with brain activity, leaving people drowsy and unable to think clearly. "What we need is a w...

New antibody shows promise as cure for anthrax

...thrax spores in the nasal passages of guinea pigs, mimicking exposure to inhalation anthrax. The doses were 250 to 625 times what would ordinarily be lethal to 50 percent of the animals. After 72 hours, the animals not treated with the antitoxin succumbed to the infection, but those that received the treatment...

Tiny polyps gorge themselves to survive coral bleaching

...onment. In one set of tanks, the water was heated, mimicking the rising temperatures leading to a bleaching event. After a month, fragments of the coral were gathered from all of the tanks and put through a series of tests measuring energy reserves, photosynthetic rates and growth rates of the coral. The res...

Engineered mouse mimics cognitive aspects of schizophrenia

... brain causes cognitive and behavioral impairments mimicking those in human schizophrenics. The achievement is important, because creating an animal model of any schizophrenic characteristics has not been done before. And schizophrenia's genetic and physiological complexities have seriously hindered efforts t...

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