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Tag: "perform" at biology news

Computational Method Speeds Mapping of Cell Signaling Networks

...urveillance with response, and allows the cells to perform a variety of tasks--such as growing in response to hormones, moving towards a source of nutrients, or responding to foreign invaders in the body. In all of these cases, external signals are converted into cellular messages that get passed sequentiall...

Alzheimer's cognitive decline slowed

...sult of the bleeds, the protocol was redesigned to perform the procedure under general anesthesia and all subsequent procedures were performed without complication. Cognitive outcomes were assessed in the six patients who completed the NGF delivery procedure safely. The Mini Mental Status Examination (MMSE)...

Nano-bumps could help repair clogged blood vessels

...at "vascular stents" used to repair arteries might perform better if their surfaces contained "nano-bumps" that mimic tiny features found in living tissues. The researchers already have shown in a series of experiments that bone and cartilage cells in petri dishes attach better to materials that possess sma...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

... have more dopamine in their prefrontal cortex and perform better on tasks involving that part of the brain. Schizophrenia patients typically perform poorly on such tasks. Earlier studies had shown that inheriting two copies of the more common val ve...

New tumor-suppressor gene discovered

...nto the mutant fly's body, we found it was able to perform the same function as a normal fly's mats gene," La...ant flies and found that the human gene is able to perform the same function as the fly gene. Additional experiments also revealed that the mats gene is requir...

Agilent Technologies releases probe sequence, annotation information for all its commercial gene expression microarrays

...ces (NIEHS), has been using Agilent microarrays to perform thousands of experiments to profile chemical effects on biological systems, thereby creating a vast resource of gene expression responses to chemical toxicants. The data will eventually be made available through the NIEHS National Center of Toxicogen...

Virus-host interactions at sea effect global photosynthesis

...ces (NIEHS), has been using Agilent microarrays to perform thousands of experiments to profile chemical effects on biological systems, thereby creating a vast resource of gene expression responses to chemical toxicants. The data will eventually be made available through the NIEHS National Center of Toxicogen...

B-15A collides with Antarctic ice tongue

...ces (NIEHS), has been using Agilent microarrays to perform thousands of experiments to profile chemical effects on biological systems, thereby creating a vast resource of gene expression responses to chemical toxicants. The data will eventually be made available through the NIEHS National Center of Toxicogen...

Signs of aging: Scientists evaluate genes associated with longevity

...sues and organisms during aging." In an effort to perform a comprehensive analysis of gerontology-related genes, the researchers compared gene-expression libraries obtained from daf-2 mutants to those obtained from controls at different ages. They predicted that genes exhibiting coordinated up- or down-regu...

The circadian clock: Understanding nature's timepiece

... are organized in a complex network of groups that perform different functions ?contrary to the previously held belief that each cell did the same thing. Antle, an emerging leader in the field, has two new papers on the subject: one is featured on the March cover of the prestigious Trends in Neurosciences, a...

Stanford gut check shows diversity of intestinal ecosystem

...udent Chana Palmer to develop a gene chip that can perform a microbial census on complex communities and samples. ...

Affymetrix Launches New Globin-Reduction Kits and Protocol Developed with PreAnalytiX

...n tube. This enables researchers and clinicians to perform more accurate analysis of gene expression profiles without the variations caused by sample collection, storage, transport or fractionation while relying on highly standardized and proven sample collection principles. Additional information on PreAnal...

Microscopes at microscopic size

... the size of a credit card, which would be able to perform medical diagnostics, improving patient treatment b...e basis for hand-held systems that will be able to perform diagnostic functions in the field that currently require a laboratory test." Professor Julia Goodfe...

A new way to share models of biological systems

...South Africa). Even the simplest living organisms perform a mind-boggling array of different processes, which are interconnected in complex ways to ensure that the organism responds appropriately to its environment. One of the best ways of ensuring that we really understand how these processes fit together ...

Molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves

...cience has now discovered how molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves. A nerve cell has a cell body and a long extension, called an axon, which in humans can reach up to one meter in length. Nerve cells belonging to the peripheral nervous system c...

Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage

...their precise role remains poorly understood, they perform vital protective functions. Certain lung infections easily cleared from normal laboratory mice are a death sentence for those lacking gamma-delta T cells. Despite their clear importance in resisting disease, the processes controlling the generation ...

Penn Researchers Use Robotic Surgery

...tive use of the daVinci Surgical Robotic System to perform Trans-Oral Robotic Surgery (TORS) which greatly reduces surgical trauma for patients. Their initial findings will be presented Monday, May 16th at 11:45 a.m., at the combined annual meetings of otorhinolaryngology (ear, nose and throat) experts ?the ...

At the molecular level, the predator is the prey

...ls change too much or in the wrong way, they can't perform their basic, everyday functions. Sodium channel genes in different vertebrates are virtually identical to each other, but not in these snakes. We're finding a molecular arms race is driving rapid and repeated changes in the gene within this group of ...

Two new retroviruses—transmitted from animals—identified

...tive use of the daVinci Surgical Robotic System to perform Trans-Oral Robotic Surgery (TORS) which greatly reduces surgical trauma for patients. Their initial findings will be presented Monday, May 16th at 11:45 a.m., at the combined annual meetings of otorhinolaryngology (ear, nose and throat) experts ?the ...

Natural Killers Could Lead to New Hepatitis Treatments

...e said, immune cells in the lymph nodes and spleen perform their surveillance ensconced within specialized compartments shielded from the turmoil of the bloodstream. “In this case, it looks like NKT cells are doing their surveillance from within the vessels,?he said. The observations revealed that the NKT c...

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