Tag: "freezing" at biology news
Expression Project for Oncology (expO) completes first phase of standardized gene expression analyses
... order to maintain the integrity of RNA by quickly freezing
the portion of tumor released for analysis. Historically, collection efforts typically achieve a successful preservation rate of 75%. Due to close collaboration between the surgeons, pathologists, local clinical research coordinators and expO, the su...
First frozen egg baby born in Canada
...ntre of the MUHC is pioneering a revolutionary new freezing
technique, which has dramatically increased egg su...d have high water content. Conventional methods of freezing
have been relatively unsuccessful because they allow the formation of ice crystals, damaging the cel...
Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment
...ooked beyond traditional techniques to a method of freezing
cells called vitrification. This cryopreservation ...for control eggs that were not vitrified. For egg freezing
to work, it must be a mature oocyte, which means a woman must have 14 days of hormone treatments to ...
Scientists journey to southern Africa to unravel the secret world of elephant communication
... to resume drinking and socializing. Synchronized freezing
is a common behavior in the wild, even among large...noa, O'Connell-Rodwell noticed something about the freezing
behavior of Etosha's 6-ton bulls that reminded her of the tiny insects back in the lab. "I did my m...
Advancements In Genomics Foster Deep Sea Discoveries
... land. Extreme deep ocean conditions include near freezing
temperatures and up to 15,000 pounds per square inch of “skull-crushing?pressure. Scientists say precious information lies in discovering how organisms have adapted and evolved to such conditions. Bartlett and his colleagues probed the genetic makeu...
Life detection instrument passes key test on road to Mars
...dust and temperature extremes that left her either freezing
or sweating, Skelley ran 340 tests that proved the instrument could unambiguously detect amino acids, the building blocks of proteins. More importantly, she and Mathies were able to detect the preference of Earth's amino acids for left-handedness ove...
Deep thinking: Scientists sequence a cold-loving marine microbe
...e above room temperature. How does it cope in such freezing
conditions?" Among cold-adapted bacteria, Colwell...--rather than a frozen chunk of biomass--below the freezing
point. The genome also possesses a number of duplicated genes important to cell membrane biosynthesi...
Spiders help scientists discover how muscles relax
...ectron microscopy avoids these problems by rapidly freezing
the sample. Using the new technique, the researchers were able to visualize the muscle tissue in a form closer to its structure in the body than had previously been possible. It took several years to refine the techniques required to preserve the th...
Israeli scientists successfully transplant frozen-thawed ovaries in sheep
technique raises future hopes for human applicatio... that the advances they have demonstrated from new freezing
techniques may have potential for other human organ transplants, which are currently done using only...
Freeze-dried mats of microbes awaken in Antarctic streambed
...sh polar environment, where temperatures are below freezing
for most of the year and glacial melt water flows for only five to 12 weeks annually, said Professor Diane McKnight of CU-Boulder's Institute of Arctic and Alpine Research. Such research on life in extreme environments is of high interest to astrobio...
NC State researchers redesign life for Mars and beyond
...Occasionally, the organism is spewed out into near freezing
deep-sea water. The NC State research, funded for two years and $400,000 by the NASA Institute forAdvanced Concepts, entails extracting a gene - called superoxide reductase - from P. furiosus and expressing it in plants. That gene, one of nature's b...
Minimally Invasive Cancer Treatments Highlighted
...g the tumor with heat (radiofrequency ablation) or freezing
the tumor (cryoablation) to treat cancer locally, ...s in the United States each year. Heating (RFA) or freezing
(cryoplasty) the tumor kills the tumor and nerve endings in the vicinity of the metastasis that were...
Plant wounds trigger bacteria
... dicot plants, tree or vines near the ground where freezing
occurs during winter and a wound forms in spring. Such fruit trees as cherries and peaches, raspberries and high-quality vine grapes like chardonnay and cabernet sauvignon tend to be susceptible to the disease, which can stunt or kill a plant. Grafti...
New antifreeze protein found in fleas may allow longer storage of transplant organs
...roduced by the fleas to protect themselves against freezing
is capable of inhibiting ice growth by about six C...ence. "Transplant organs must now be kept at the freezing
point or slightly warmer," says Dr. Graham. "If we can drop the temperature at which the organ is sa...
War on terror meets war on cancer
...cterial cakes by placing each cake in a test tube, freezing
the cakes by putting the tubes in liquid nitrogen, using a vacuum to remove the air from each tube, then putting the tubes in boiling water. The water from each cell cake was boiled into steam, which was routed to another tube where the water condens...
Gene controls whether fear is a factor
... While both groups displayed some fear response by freezing
immediately after a shock and later after hearing the tone, knockout mice reacted less strongly, they found, suggesting that they had an impaired ability to learn fear. In other tests, the mutant mice also showed less instinctive fear of open spaces...
Zooming in on the protein-conducting channel
...tly froze it in supercold liquid ethane. The rapid freezing
imprisoned the complex in vitreous ice, a glassy non-crystalline form of ice, thus preserving its native structure. Using an electron microscope with a low-intensity beam to avoid damaging the molecules, scientists then obtained images of thousands o...
Microbes under Greenland Ice may be preview of what scientists find under Mars' surface
...und, where the temperature is slightly warmer than freezing
and such microbes should average about one every cubic centimeter, or about 16 per cubic inch. While Price is not expecting any time soon a mission to Mars to drill several hundred meters beneath the surface, methanogens (methane-generating Archaea)...
Thin tough skin, slow-growing gills protect larval Antarctic fish
...f as salty as seawater. While seawater reaches its freezing
point at -1.91 degrees Celsius, fish fluids will f...r where these species dwell rarely rises above the freezing
point and is regularly filled with ice crystals. "The way that we've understood how adult polar fis...
US woman gives birth to baby from world's first frozen donor egg bank
... frozen donor egg bank was formed based on new egg freezing
technology developed by Jeffrey Boldt, PhD, Scientific Director for CEI. The pregnancy rates with donor eggs are beginning to show success rates equivalent to pregnancy rates using eggs before freezing. Donor eggs which have not been frozen are com...