animal 2 10

Tag: "animal" at biology news

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

...p anticipates that several years of research using animal models and cell culture systems will still be needed before transplantation can be considered ready for testing in humans. Restoring visual function in animals is an important advance, but the scientists caution that it shouldn't be considered t...

Global changes alter the timing of plant growth, scientists say

...pringtime developmental activity in many plant and animal species and have assumed it was a response to global warming. In the experiment, researchers found that warming accelerated springtime flowering of all species. But they were surprised to find differing responses to elevated carbon dioxide and nitrog...

Gene therapy inhibits epilepsy in animals

...opment and in controlling brain activity. Previous animal research by Dr. Brooks-Kayal's group had found tha... likely be different than in this proof-of-concept animal study that involved injecting agents directly into the brain. This study, does, however, lay the fou...

Newts which regrow their hearts

...ed newt, Notophthalmus viridescens, is a favourite animal of the researchers working with Thomas Braun in Na...t home in the Institute’s aquaria. It is a small animal that scientists find interesting for a particular reason: whereas humans cannot regenerate damaged h...

A valuable fly for research into disease

... the leading countries for research that uses this animal model. Twenty-six international researchers, sele...ir experience in studying human disease using this animal system, will meet for the first time to present and discuss their research. The conference, to be he...

Comments, experts and background on the 2006 Nobel Prize in chemistry

...fe and health. With no new protein synthesized, an animal will die within days. Death can also result from the ingestion of certain poisons, which block an enzyme needed for transcription. Cancer and heart disease are among the diseases linked to abnormalities in transcription. Kornberg obtained those ima...

Genome archaeology illuminates the genetic engineering debate

...ition in the genome is largely based on studies in animal genomes. In contrast to those studies, however, the authors show that plant genomes evolved from a far more dynamic structure than previously believed. Maize dominates domestic agriculture, where approximately 9 billion bushels are produced annuall...

Intravenous gene therapy protects normal tissue of mice during whole-body radiation

...om a radiological or nuclear bomb, according to an animal study presented today by University of Pittsburgh researchers at the 48th Annual Meeting of the American Society for Therapeutic Radiology and Oncology (ASTRO) in Philadelphia. "Ionizing radiation can be extremely damaging to cells, tissues, organs ...

A silent pandemic: Industrial chemicals are impairing the brain development of children worldwide

...emicals that can cause neurotoxicity in laboratory animal tests exceeds 1,000.) The authors then examined the published literature on the only five substances on the list--lead, methylmercury, arsenic, PCBs and toluene--that had sufficient documentation of toxicity to the developing human brain in order ...

NYU biologists identify gene that coordinates two cellular processes

...orm Caenorhabditis elegans (C. elegans), the first animal species whose genome was completely sequenced and a model organism to study how embryos develop. The study appearing in Current Biology was performed by NYU's Fabio Piano, an assistant professor, and Anita Fernandez, a post-doctoral researcher, at t...

Researchers identify neurons that assign value during learning

... neutral influence on behavior. For example, if an animal such as a fruit fly learns to associate a particular odor with a punishing stimulus, the odor itself can become repulsive. Conversely, an odor associated with a reward can become attractive. Despite its relatively modest brain complexity, the fruit f...

Fishy cooperation

... species. Also, recruitment is quite common in the animal kingdom—for example, primates have specialized sig...dea itself that is wrong. The best way to approach animal intelligence is from an evolutionary and ecological perspective focused on the tasks that each speci...

Scientists crack genetic secrets of human egg

...sked Jose Cibelli, MSU professor of physiology and animal science. "Some of those genes are responsible for the magic trick that the egg has. This paper takes a peek at what genes are in the egg waiting to make these changes." Combined with sperm, the egg divides and organizes cells to ultimately create a...

Fruit fly study identifies gene mutation that regulates sensitivity to alcohol

...orresponding genes and molecular pathways in other animal models and humans. Antonio Noronha, Ph.D., director of NIAAA's Division of Neuroscience and Behavior, said, "If we can characterize similar genetic differences and neurobehavioral responses that underlie acute tolerance in humans, that could potentia...

Environmental toxins may cause body's defenses to worsen lung disease

...and lead to additional health problems. Using an animal model, Borchers will expose surface cells in the lung to two environmental toxins--the bacteria pseudomonas aeruginosa, a major cause of in-hospital infections, and acrolein, an air pollutant found in tobacco smoke, smog and diesel exhaust--to determ...

First Quantum Grant to fund stem cell repair of damage from stroke

...f science that include cell and molecular biology, animal models of disease, and hopefully human clinical trials, the "Neuro-Vascular Regeneration" project falls in line with the NIH roadmap for the development of multi-disciplinary and translational science. The BCM team also includes project co-develop...

Fast-freeze snapshot yields new picture of nerve-muscle junction

...th tiny, one-millimeter-long nematode worms, a lab animal widely studied by neuroscientists. Investigators report the finding in the Aug. 2 issue of the Journal of Neuroscience. Janet Richmond, associate professor of biological sciences at the University of Illinois at Chicago, is the corresponding author....

Sea urchin genome suprisingly similar to man and may hold key to cures

...tionary perspective than other more widely studied animal models, such as fruit fly or worms. The purple sea urchin, in fact, has 7,000 genes in common with humans, including genes associated with Parkinson’s, Alzheimer’s and Huntington’s diseases and muscular dystrophy. "Another surprise is that this sp...

Plants give up answers in the war on bacteria

...eful human health implications. Understanding that animal pathogens, like dangerous E. coli, cannot easily gain access inside the plant helps scientists know how to best combat bacteria that cause foodborne illness. It is important to know, he explained, whether foodborne illnesses rest on the surface of a...

Finding an answer to Darwin's Dilemma

The sudden appearance of large animal fossils more than 500 million years ago ?a problem...ago corresponds with the first appearance of large animal fossils on the Avalon Peninsula in Newfoundland. Now for the first time, geochemical studies hav...

1 2 3 4 5 6 7 8 9 10