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Tag: "made" at biology news

Researchers publish first marsupial genome sequence

... on the recent genetic innovations, the scientists made two major findings: First, the vast majority (about 95 percent) of recent genetic innovation lies not in protein-coding genes, but in regions of the genome that do not contain genes and that many had referred to as junk DNA until recently. Rese...

Tissue engineered scaffolding allows reproduction of cartilage tissue

... examines the use of tissue-engineered scaffolding made of cartilage cells, which have a limited ability to heal naturally, to replace defective cartilage tissue. Cartilage cells are extracted and seeded to the scaffold which is implanted into the body, where new cartilage tissue is grown along the struct...

HIV survival improves if patients stay in care

...ffairs population, determined that staying in care made a difference to longevity. Studying those in the VA population eliminated the issue of ability to pay for care, enabling him and his colleagues to look at care alone. Giordano and his colleagues looked at 2,619 men with HIV for more than four year...

Magnetic computer sensors may help study biomolecules

... memory (MRAM) for biosciences. Spin valves are made by stacking thin layers of materials with differen...on) or opposite (off) directions. NIST researchers made an array of spin valves, each about one by four micrometers in size, patterned on a 200-nanometer-th...

DOE JGI sets 'gold standard' for metagenomic data analysis

...ultiple genomes. All the publications to date have made the assumption that these tools will work as efficiently for metagenomes, "but we really didn't know." Nikos Kyrpides, DOE JGI Genome Biology Program Head, said that, to evaluate the magnitude of this problem and identify the inherent pitfalls, "w...

Researchers attach genes to minichromosomes in maize

...of hereditary information. Whereas a chromosome is made of both centromeres and telomeres with much intervening DNA, a minichromosome contains only centromeres and telomeres, the end section of a chromosome, with little else. However, minichromosomes have the ability to accept the addition of new genes in...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...uring pregnancy, among other factors. The study made at the UGR [ http://www.ugr.es ] has facilitated research into the association of the characteristics of parents, newborn babies and childbirth with exposure to pesticides found in the mothers?placenta. Among the aspects associated with a higher pres...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

...They found that the loss of either gene's function made the flies more sensitive to bacterial infections and these sick flies died significantly faster than control flies, which lived two to four times as long as the sick ones. "We want to know how the internal clock knows the animal is infected, and h...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...lore how the middle ear of mammals evolved as they made the transition from water to land (2aAB3), the ide...f nature. At the Grand Canyon, efforts are being made to implement the National Parks Overflights Act of 1987, which calls for the timely, substantial res...

Spud origin controversy solved

...onists but also for breeders. Years of effort were made to artificially recreate the European potato from Andean landraces yet it may have originated from Chile,?said Spooner. “If the true origin of the European potato was from Chile, rather from the Andes, it shows the value of plant evolutionary studies...

Herpes infection may be symbiotic, help beat back some bacteria

...transition from acute to latent infections, Virgin made a discovery that piqued his interest in the possibility that latent infections might confer unrecognized benefits. "We found evidence that the mouse immune system controls latent herpes infections in part by increasing production of a protein horm...

First demonstration of new hair follicle generation in an animal model

...ing triggered an embryonic state in the skin which made it receptive to receiving instructions from wnt proteins,?says senior author George Cotsarelis, MD, Associate Professor of Dermatology. “The wnts are a network of proteins implicated in hair-follicle development.? Researchers previously believed th...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...g. "The team found a chemical we could use that made the nanoparticle look yummy to the plant cells so ... nanoparticles to walled plant cells, the chemists made another clever modification on the particle surface. They synthesized even smaller gold particles to...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...rge quantities at a very low cost, and may even be made for personal, disposable use . The chemical mechanism to detect contaminants in a sample is very similar to that used by the immune system to identify a virus or bacteria in the body. The organism attacks an infection by generating antibodies whi...

Cornell lab confirms deadly fish virus spreading to new species

...onth the Wisconsin Department of Natural Resources made a presumptive identification of the virus for the first time in the Lake Winnebago chain of inland lakes about 25 miles south of Green Bay on Lake Michigan; confirmation is pending. And millions of dead freshwater drum formed windrows of carcasses al...

Proteasome activator enhances survival of Huntington's disease neuronal model cells

...ear and cellular inclusions of protein-aggregates, made up primarily of huntingtin. One cellular organelle with a central role of clearing such protein build up in the cell is the ubiquitin proteasome system (UPS). In Huntington's disease (HD) brains and other tissues, UPS activity is inhibited and intra...

MIT's ocean model captures diversity of underwater forests

... and director of the Earth Systems Initiative, has made prochlorococcus her focus of study for 20 years. Stephanie Dutkiewicz, a research scientist in EAPS, and Scott Grant, a graduate student at the University of Hawaii, who was an MIT physics undergraduate during this project, collaborated with Chisholm...

Researchers wake up viruses inside tumors to image and then destroy cancers

...anking out TK," Pomper says. "An injection of FIAU made it easy to image the tumors with virus in them." The method is highly sensitive, he says: as few as five percent of the cells within the tumor mass needed to be induced into the lytic cycle in order to be detected. Not only can FIAU light up th...

Scientists see DNA get 'sunburned' for the first time

...hey took specially designed strands of DNA -- ones made solely of thymine bases, in order to boost the chance of observing a reaction between adjacent thymines -- and exposed them to UV light. Then they timed the reactions that caused the new thymine bonds to form. Kohler stressed that he and his colle...

Rapid response was crucial to containing the 1918 flu pandemic

...h implemented similar public health measures? What made the difference, according to two independent studies funded by the National Institutes of Health (NIH), was not only how but also how rapidly different cities responded. Cities where public health officials imposed multiple social containment measu...

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