Tag: "experiments" at biology news

New findings challenge established views on human genome

... So, it was necessary to conduct multiple, diverse experiments and then analyze them using multiple computational methods, said Elise A. Feingold, Ph.D., program director for ENCODE in NHGRIs Division of Extramural Research, which provided most of the funding for the pilot project....

UVa-led team uncovers important secret in gene replication

...s for the study. Groups that were performing other experiments found that their data about genetic expression perfectly correlated with what the Dutta lab would have predicted, in terms of gene expression timing. In the ENCODE study, the next project is to examine the remaining 99 percent of the genome, using at...

ENCODE map changes view of the human genome landscape

...andre Reymond and colleagues conducted a series of experiments to annotate all 399 protein-coding genes in the ENCODE regions. In doing so, they found that more than half of the genes produced transcripts that contained sequences mapping outside of the known boundaries of these genes. Interestingly, these tran...

Study shows lizard moms dress their children for success

...ncaster used a combination of laboratory and field experiments to tease apart a complex set of interactions invol...n the egg yolks. The researchers then performed experiments in breeding enclosures, each holding one male lizard and three females. The numbers of orange- and y...

Salvage logging, replanting increased biscuit fire severity

...in young forests, Thompson said. There are ongoing experiments within the Biscuit Fire region to test the effectiveness of fuel breaks for slowing the spread of severe fires. ...

Researchers shed light on shrinking of chromosomes

...lls, says Felipe Mora-Bermdez, who carried out the experiments in Ellenbergs lab, we think that the super condensation at later stages helps to disentangle such chromosomes and acts as a back-up mechanism to rescue separation defects. The EMBL researchers found that an enzyme called Aurora kinase is crucially in...

New study finds genetically engineered crops could play a role in sustainable agriculture

...e first time, environmental impact data from field experiments all over the world, involving corn and cotton plan...e quantities of existing data from many individual experiments can provide a greater understanding of a complex issue. The project is enhanced by the creation of ...

Super fruit fly may lead to healthier humans

...goff the unstable part of the receptor and running experiments only on thepart of the receptor that sticks out of the cell. Though there were no guarantees that inhibiting one part of the receptorwould incapacitate the whole, the strategy succeeded. Roberts method builds on his co-discovery, in 1997, of a si...

Pesticides choke pathway for nature to produce nitrogen for crops

...rop yields." The researchers say that field-wide experiments now are needed, in addition to tests to determine the exact elements of pesticides that inhibit natural plant-bacteria interaction. ...

New clues to stroke role in Alzheimer's

...formation of brain-clogging amyloid plaques. Their experiments established that executioner enzymes that kill brain cells during stroke or head trauma also interfere with the normal disposal of an enzyme that helps generate plaque. This interference increases the level of the enzyme in brain cells, they found. ...

Neuronal activity gives clues to working memory

...entists at Weill Cornell Medical College say their experiments with common goldfish are uncovering the secrets of a form of short-term recall known as "working memory." "We've now identified a mechanism that can organize the activity of groups of cells involved in this important form of recall," says lead rese...

American Chemical Society's Weekly PressPac -- May 30, 2007

...ng genes with viruses, shows promise in laboratory experiments for correcting the gene defect responsible for sic...y describes an enzyme treatment used in laboratory experiments to modify the structure of corn starch. It increased the amount of slowly digested starch by up to 1...

What's going on in the body? Advanced time-of-flight PET takes a superior 'look'

...d TOF/PET with computer simulations and controlled experiments to approximate the behavior within the human body, showing that we can get very good image quality with shorter scanning times," she said. "We have now moved our investigation to clinical studiesusing PET scans from patients with a wide range of body...

Math that powers spam filters used to understand how brain learns to move our muscles

...r says, almost precisely duplicates the results of experiments that tested the ability of monkeys to visually track rapid flashes of light. Experiments using such rapid eye movements, or saccades, are a staple in studying how the brain controls movement. Initially, the animal learner made large errors, but als...

Research identifies protein that signals flowering in squash plants

...surement of compounds in phloem sap, and designing experiments to allow accurate monitoring of long-distance tran...liam J. Lucas explained, it is important for these experiments to use a plant that is 100% inducible; in other words it absolutely will not flower unless it is ind...

Common cancer gene sends death order to tiny killer

...the miR-34a gene is turned on by p53, and in fact, experiments demonstrated that p53 binds directly to the genetic material near miR-34a to promote its activation. Concluding that p53 controls miR-34a, they next teamed up with Charlie Lowenstein, M.D., and his colleagues in Hopkins's department of medicine to...

Yin and yang -- Balance could play key role in progression of Alzheimer's disease

...nction normally when they are in balance." Wangs experiments show that when there is 15 times more AB40 than AB42, the formation of AB42 fibrils is almost completely stopped. "This means that the introduction of AB40 to tip the peptide balance toward AB40 could potentially halt or slow down the progression of ...

Common treatment for methamphetamine overdose may damage brain cells

...t, a new study shows. The findings, derived from experiments with rats, indicate that only the combination of the medication, haloperidol, and methamphetamine causes the destructive effects, not either one alone. Senior author Bryan Yamamoto, PhD, and his team at Boston University School of Medicine suspect th...

ACS News Service Weekly PressPac -- May 23, 2007

...lity to fluoresce repeatedly during the tests. The experiments suggested that sensors made from the material would resist deterioration from exposure to sunlight, another drawback with existing sensor materials. ARTICLE #4 FOR IMMEDIATE RELEASE"Detection of Explosives with a Fluorescent Nanofibril Film" DOWN...

Ants show us how to make super-highways

...clear benefit for the society as a whole." Their experiments showed that individuals size-match to the hole they plug and cooperate to plug larger holes. "We did this by getting the ants to literally walk the plank, said Powell. "We inserted planks drilled with different sizes of hole into the army ants trail...

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(Date:10/18/2014)... suspected genetic conditions, a certain type of exome sequencing ... than traditional molecular diagnostic methods, according to a study ... released to coincide with the American Society of Human ... protein­coding region of the genome (the complete set of ... organism), has been rapidly applied in research settings and ...
(Date:10/17/2014)... news release is available in German . ... millions of sperms every day in order to reproduce? And ... are the topic of the latest issue of the research ... 2014). The evolutionary biologist Steven Ramm from Bielefeld University Bielefeld ... it is not unusual for a female to copulate with ...
(Date:10/17/2014)... in German . ... drugs. When treating overdoses, doctors are often limited to supportive ... there is a combination of drugs involved. So what can ... his grandmother,s pills? ETH professor Jean-Christophe Leroux from the Institute ... answer to this question. "The task was to develop an ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Sperm wars 2Emergency aid for overdoses 2Emergency aid for overdoses 3
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