Tag: "using" at biology news
Researchers Take Major Step Toward Cracking Ebola Code
...tein was detected by its ability to bind to cells, using
an antibody tothis viral gene product. The bindin...orvirus-bound) form of the protein was detected by using
a technique of moleculargenetics to insert this protein on the surface of another virus---a mouseret...
Cancer Cells Self-Destruct When "Sweet Tooth" Is Thwarted
...o start chain reactions that help them switch from using
oxygen for energy production tousing glucose. ...vation." One of the biggest obstacles to using
a sugar-starvation treatment incancer patients, according to Dang, is that central nervous system ce...
Age-Based Screening Is Cost-Effective Method To Control Chlamydial Infection
...ey hadnot undergone routinescreening for Chlamydia using
either urine or cervical specimens. New and simpletests make screening easier." Currently, the CDC recommends testing all women with evidence of an inflamedcervix and all women younger than 20 years of age. They also suggest: (1)testing women 20 to ...
Females' Siren Song Initiates Courtship Duets In African Frogs, Columbia Biologists Find
...ly opaque but acoustically transparent barrier and using
ahydrophone to record their calls. Receptive females swam directly towardsvocalizing males, and on reaching the barrier began rapping. That song had adramatic effect on males, which launched into intense bouts of answer trillingand swam rapidly in ...
Hormone Control Of Rare Leukemia Sheds Light On Molecular Basis Of Cancer
...oic acid and its receptor regulate gene expression using
a complexinterplay of blocking and activating molecules. In the absence of retinoic acid,the receptor blocks a gene by binding to a co-repressor. In the presence of thehormone, the co-repressor is released and a co-activator turns a gene on. Theretin...
Biotech Approach To Feral Cat Problem Devised
...around the world has demonstrated the viability of using
genetically altered strains of Salmonella as vehicles for delivering vaccines, including oral contraceptives, explains Boyle, a molecular biologist at the CMMID. Here's how the process works: Scientists used genetic engineering techniques to remove ...
Genetic Test For Alzheimer's May Improve Diagnostic Reliability
...tive diagnoses (45 percent) showthe limitations of using
recommended clinical criteria alone. Dr. M... adding to the assurance of clinicaldiagnoses. By using
the ApoE genotype only in patients who first met clinicalcriteria for Alzheimer's, the false positiv...
DNA Used To Create Self Assembling Conducting Wire: Breakthrough Will Lead To Next Leap In Emerging Nanoelectronics
... used to make computer chips. Thestandard process, using
photolithography, reaches the limits of miniaturizationat about 250 nanometers. In principle we could have wires that are 100 timesnarrower than that, according to the researchers. In electrical tests of the nanowire, the Technion team discov...
26 National Alzheimer's Disease Centers Collaborate On Study Of The Utility Of Genetic Testing For Alzheimer's
...ng a thorough evaluation by a trainedphysician and using
recommended criteria and other diagnostic tests su...e diagnoses (45 percent) shows the limitations of using
recommendedclinical criteria alone. Dr. Mayeux and colleagues examined the effect of the ApoE genoty...
Scientists Invent Faster Gene Function Identification System
...tiontechniques, which can take months to years. By using
a nonviral gene expressionsystem to inhibit the ex...fficient," Wagner says. Until now, studies using
ribozymes as the catalyst to stop proteinproduction have worked only in cells. Wagner's research is ...
Study Is First Ever To Document Protein Therapy Induces Creation Of New Blood Vessels To The Human Heart
...rt muscle near the blockage. Prior to using
the treatment in humans, the scientists performed severalseries of animal experiments, most specifically in ischemic rat hearts. Havingfound that the FGF-I injection worked in those animal models, the researcherstheorized that it would also work in ...
Transplanted Neurons Restore Function In Rats After Stroke
... are thawed." Experimental transplantation using
fetal brain cells has been successfulin a small number of patients with Parkinson's disease, but the potential forwidespread use of fetal tissue is limited, partly because of difficultiesassociated with preservation. "The clinical potential i...
Food Bacteria-Spice Survey Shows Why Some Cultures Like It Hot
...ok a mastodon.' Webelieve the ultimate reason for using
spices is to kill food-borne bacteria andfungi." Sherman credits Billing, a Cornell undergraduate student of biology at the timeof the research, with compiling many of the data required to make themicrobe-spice connection: More than 4,570 recipes...
User-Friendly Brace Helps Paraplegics To Walk
...kes all of this much easier. When the patient is using
his wheelchair, the part of the new device which supportsthe torso can be easily separated from the two lower leg braces and hung on theback of the wheelchair. The brace can also be folded up so that it easily fits in a car.It also differs from exist...
New Imaging Technique Pinpoints Dead Heart Muscle
...on, identifies and measures creatineconcentrations using
magnetic resonance spectroscopy (MRS) in different regionsof the heart. The image of each region to be examined with MRS is first obtainedby MRI during the same examination. "MRI allows us to see only the structure of the heart," says Paul A...
Nitrate Reductase: A Magical Enzyme?
...his wife Ellen in 1993 toproduce nitrate reductase using
a process they licensed from Michigan Tech. Resear...water and a method for removing nitrate from water using
enzymes. Thenitrate removal method could be used in homes and businesses with nitratepolluted water...
Global Warming Would Foster Spread Of Dengue Fever Into Some Temperate Regions
computers to simulate the general circulation of the earth'sclimate have predicted that rising global temperatures will increase thepotential transmission of the dengue fever virus. Dengue fever is now consideredthe most widespread viral infection tr...
The Environmental Consequences Of Increasing Food Production
...eria, and his colleagues are developing strategies using
GISfor managing crops and livestock in the environmentally-sensitive savannahs ofWest Africa. They project that the failure to develop such strategies will leadto large shortfalls of feed for livestock and substantial soil degradation andloss of veg...
Researchers From Rockefeller University Develop Novel Method To Fight Cancer
...City have developed anew method to fight cancer by using
dendritic cells to activate T cells via anew pathway. Reported in the March 5 Nature, the technique offers the promise ofnew therapies for cancer, AIDS and autoimmune diseases. "We've shown that dendritic cells can trigger an immune response when cul...
Reclaimed Waste Water Can Augment Municipal Drinking-Water Supplies But Concerns Must Be Addressed
...eclaimed water. Alternative studies,such as tests using
fish in source water, should be undertaken to prov...uldnecessarily be the most stringent. Communities using
reclaimed water shouldimplement well-coordinated, public health surveillance systems to document and...
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