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Tag: "genetic" at biology news

Researchers develop rapid diagnostic tool for pathogen identification

...merase chain reaction that allows amplification of genetic sequences and on a technology previously used for DNA sequencing and detection of genetic polymorphisms. Genetic probes for pathogens were coupled to markers known as mass codes. After ampli...

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

... variability in disease susceptibility, other than genetic variation, in animals in the wild and perhaps humans." The authors conclude that neonatal infection can create later problems by changing how well the body can respond to future immune challenges. Those changes affect how well memories are stored. T...

Asthma gene clusters identified

...ldren who suffer from acute asthma attacks share a genetic profile that appears to be unique to these childre...ility of developing treatments based on the unique genetic profile of patients. For example, specific therapies for acute asthma could be targeted to genes tha...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

... some cases, the clinical consequences of specific genetic mutations or biochemical alterations caused by disease," said Andrew McCulloch, a professor and vice chair of the Jacobs School's Department of Bioengineering. He celebrated the installation of the cluster at a ribbon-cutting ceremony March 9 in the ...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

...fects of environmental, occupational, dietary, and genetic factors on the health of the agricultural population. The study will provide information that agricultural workers can use in making decisions about their health and the health of their families. ...

A new study examines how shared pathogens affect host populations

...species in the community, without any numerical or genetic change in the host or pathogen. Studying only the target species or the abiotic environment would not reveal the cause of the epidemic. Their results have not only important consequences for understanding the role of pathogens in species interactions...

Potential treatments for neurofibromatosis

...malignant cells are constantly changing due to the genetic instability common to tumors. By using drugs that target the mast cells' ability to promote blood vessel growth, Clapp and his colleagues hope to prevent tumors from getting larger. Eventually, with continuing treatment, they hope the tumors will sh...

How the environment could be damaging men's reproductive health

...nvironmental conditions, possibly interacting with genetic factors, the question arises as to whether adverse changes in the environmental factors affecting male reproductive health have taken place in Lithuania in the last 20 years. "We need to look more closely at the role of environmental factors, includ...

Cricket's finicky mating behavior boosts biodiversity

...lson says, scientists today are more likely to use genetic data to come up with estimates. Closely related species of Laupala have no clear morphological differences, Mendelson says. They are similar in appearance, they have similar diets, and they live in similar habitats. Members of closely related specie...

Surprising findings reported about iron overload

... the Asians and Pacific Islanders have a different genetic mutation that has not yet been discovered, or that they do not, for some reason, develop hemochromatosis/iron overload despite their high blood levels of iron." He said that the NEJM paper is the first report from analysis of the massive data arisin...

Programmable cells: Engineer turns bacteria into living computers

...nder cells. In addition to demonstrating that the genetic programming techniques work, this sensing system c...t from cells, and a computer program will create a genetic circuit to accomplish the task. "Then we can do an experiment to see if the community of cells is be...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

... cord injury, brain tumors, multiple sclerosis and genetic diseases. Future studies will include investigation of stem cell biology and development, as well as therapeutic based research using adult and embryonic stem cells. The Institute for Stem Cell Biology and Medicine is a collaboration of the David G...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...thors caution that the mechanisms connecting these genetic signatures to specific outcomes—and the mechanisms that produce a positive interferon response—have yet to be established. For now, these patterns should be thought of as markers. Still, these results suggest that doctors could one day tailor MS pati...

Wisconsin researchers identify sleep gene

...became short sleepers when the researchers removed genetic modifiers from their genome. "This told us that genetic forces push hard against this phenotype to make it ineffective," Cirelli says. "Being a short sleepe...

Substance protects resilient staph bacteria

...pment, such as Staph and anthrax." The group used genetic and biochemical analyses to show that PGA is produced in S. epidermidis. They then used three S. epidermidis strains--one natural, one altered to eliminate PGA production and one altered to produce excess PGA--to show that PGA protects S. epidermidis...

HIV vaccine trial breaks ground for future research

... that biological differences in immune response or genetic markers of resistance to infection could have made the vaccine more effective. Also examined in the trial were the immune responses to the vaccine. The vaccine was able to generate antibody responses in virtually all participants, and, in general, t...

Fleshing out the genome

Genomics, the study of all the genetic sequences in living organisms, has leaned heavily ...lay." Before this study, nearly 40 percent of the genetic sequences in Shewanella oneidensis--of key interest to DOE for its potential in nuclear and heavy me...

Viral protein influences key cell-signaling pathway

...st milk. HTLV-1, like its cousin HIV, inserts its genetic information permanently into the DNA of a T lympho...ngs suggest that HTLV-1 p12 protein influences the genetic activity of infected T cells to stimulate their proliferation and promote efficient viral infection....

Controlling protein diversity

...n, they also determine what kind of RNA (a kind of genetic template for the protein) is made as well as what kind of protein results. "This subgroup of coactivators, when brought to the gene, can enhance the amount of RNA made off the gene or the quantitative expression of that gene as well as qualitatively...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

..." Minkley is conducting analyses to determine the genetic characteristics of the recovered bacteria to identify the different microbial species present in the samples. He also is testing the bacteria's sensitivity to ultraviolet (UV) radiation. One hypothesis is that the bacteria may have greater UV resista...

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