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Frozen in Biological News

ICSI or IVF: Babies born from frozen embryos do just as well

Amsterdam, The Netherlands: Analysis of the longest running ICSI programme in the United States has found reassuring evidence that babies born from frozen embryos fertilised via ICSI (intracytoplasmic sperm injection) do just as well as those born from frozen embryos fertilised via standard IVF tr...

A tiny frozen microbe may hold clues to extraterrestrial life

A novel bacterium that has been trapped more than three kilometres under glacial ice in Greenland for over 120 000 years, may hold clues as to what life forms might exist on other planets. Dr Jennifer Loveland-Curtze and a team of scientists from Pennsylvania State University report finding th...

Children born from frozen embryos weigh more and do better than those born after fresh transfer

This release is available in Spanish . Barcelona, Spain: Children born after a frozen, thawed embryo has been replaced in the womb have higher birth weight than those born where fresh embryos were used, Danish scientists reported to the 24th annual conference of the European Society of H...

Antarctic Treaty Meeting moves to protect frozen continent from non-native species

Important new measures to protect Antarctica ?the world's last great wilderness ?from invasive non-native species have been agreed at a meeting of Antarctic experts in Edinburgh. Scientists and policy makers at the Antarctic Treaty Consultative Meeting, which finished at Edinburgh International C...

US woman gives birth to baby from world's first frozen donor egg bank

(Lexington, Kentucky, USA, 1/2/06) Wendy and Jared Kennedy are thrilled with their New Year baby girl, Avery Lee, born December 31, 2005, at the University of Kentucky Chandler Medical Center in Lexington, Kentucky. They are the first couple to deliver a baby from the first commercial donor egg ba...

First frozen egg baby born in Canada

The McGill University Health Center (MUHC) in Montreal is pleased to announce the first successful birth in Canada resulting from frozen eggs. A team led by Professor Seang Lin Tan, Chair of the Department of Obstetrics and Gynecology at McGill University and Director of the McGill Reproductive Cen...

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

Glia appear essential for 'hair cells' responsible for hearing and balance. Traditionally viewed as supporting actors, cells known as glia may be essential for the normal development of nerve cells responsible for hearing and balance, according to new University of Utah research. The study is repor...

Humans 'damaging the oceans'

...ned effect is to weaken the ability of many species to withstand these multiple stresses. Another risk is that warming will unlock vast reserves of frozen methane in the seabed, triggering uncontrollable, runaway global warming. "In the face of such terrifying changes even large scale interventions su...

Single thawed embryo transfer after PGD does not affect pregnancy rates

...parable to those for non-biopsied embryos that are frozen as part of conventional fertility treatment. These... on observations of low survival rates of biopsied frozen embryos," said Dr Khalaf. From January 2006 to ... IVF/ICSI were carried out using embryos that were frozen and thawed before implantation, but not biopsied a...

Ovarian transplantation: First baby is born after a new technique

...excellent results in women whose ovaries have been frozen because of cancer treatment. He said that his tea...tage procedure, first grafting small pieces of the frozen ovarian tissue in the ovarian and peritoneal areas...id Dr. Piver. "But after transplanting half of the frozen ovary, she recovered spontaneous ovulation in four...

Ovarian transplantation: New technique gives greatly improved results in this delicate operation

...e the loss or preservation of oocytes in fresh and frozen ovarian tissue of 15 young women undergoing cancer...utcome, and tested spare tissue that had also been frozen from their ovaries at the time of transplant. Tiss...y or ovulatory menstrual cycling between fresh and frozen grafts. The scientists used the cortical grafting ...

Is cherry juice a new 'sports drink?'

... This homegrown advantage, coupled with potential health benefits for athletes, make cherries "America's Super Fruit." Tart cherries come in dried, frozen and juice forms so they're readily available to enjoy all year long. ...

Scientists urge global action to preserve water supplies for billions worldwide

...ready disrupting natural supplies of water by raising air temperatures and by increasing the light absorption of snow and ice as pollutants darken the frozen surfaces. Participants at the workshop held May 4-6 at Scripps Oceanography's Robert Paine Scripps Forum for Science, Society, and the Environment ...

Climate change threatens Lake Baikal's unique biota

...he dependence of the lake's food web on large, endemic diatoms, which are uniquely vulnerable to expected reductions in the length of time the lake is frozen each winter. The article was written by Marianne V. Moore, of Wellesley College in Massachusetts, and five coauthors, including four from Irkutsk ...

American Chemical Society's Weekly PressPac -- April 22, 2009

...sed water and carbon dioxide as fire extinguishing agents for decades. That knowledge led the scientists on a quest to see if carbon dioxide hydrates, frozen crystals made of water and carbon dioxide bonded together, may serve as promising fire-suppressing materials. Such icy chunks occur naturally in some ...

Wetlands likely source of methane from ancient warming event

... An expansion of wetlands and not a large-scale melting of frozen methane deposits is the likely cause of a spike in atmospheric methane gas that took place some 11,600 years ago, according to an international resear...

New human study reinforces antioxidant benefits of tart cherries

...in New Orleans. 1 In the study, healthy adults who ate a cup and a half of frozen cherries had increased levels of antioxidants, specifically five different ..., were randomly assigned to eat either one and a half cups or three cups of frozen tart cherries. Researchers analyzed participants' blood and urine at regul...

Ancient ecosystem thrives millions of years below Antarctic glacier

... Described in the April 17 issue of Science , the ecosystem lives without light or oxygen in a pool of brine trapped below Taylor Glacier and next to frozen Lake Bonney in eastern Antarctica, said John Priscu , co-author of the Science article. Priscu is a longtime Antarctic researcher and professor in ...

American Chemical Society Weekly PressPac -- April 1, 2009

...uncel Yegualp note that gas hydrates, also known as "ice that burns," are a frozen form of natural gas (methane). This material exists in vast deposits beneat... the United States and other areas. Scientists believe that fuel from these frozen chunks, formed at cold temperatures and high pressures, may help fuel cars,...

Bone deformities linked to inbreeding in Isle Royale wolves

...tudy, Vucetich and Peterson found two dead wolves with misshapen vertebrae, one killed by other wolves and the other, which also had severe arthritis, frozen under the ice of a lake. This was a particularly cold, hard year on the wolves and moose of Isle Royale. The researchers counted 24 wolves, close ...

Scripps scientists find structure of a protein that makes cancer cells resistant to chemotherapy

...ng a technique in structural biology known as x-ray crystallography, which involves making crystals of ordered arrays of protein and then blasting the frozen crystals with x-ray radiation. The atoms in the protein crystals cause the x-rays to diffract, and the scientists collect and analyze the pattern of d...

Human adult testes cells can become embryonic-like

...onic-like stem cells, which are pluripotent," Dym says. Once these new cell types are produced several weeks after initial collection they can be frozen and used at any point in the future, the researchers say. He and the research team conducted the study using testes donated to GUMC from four organ do...

Carbon sinks losing the battle with rising emissions

...ncy and insect attacks, all of which can slow or reverse sinks or initiate sources of CO 2 to the atmosphere. Release of carbon presently locked in frozen soil, as both CO 2 and methane (a more potent greenhouse gas than CO 2 ). Shifts in large-scale agricultural production of food and fibre, potentia...

UAB space freezers deemed a success

...of space shuttle Discovery marks another milestone for GLACIER as the first freezer is re-packed on the shuttle for return to Earth. It is filled with frozen blood samples, cell cultures and other experiments. From a satellite-linked control center in Birmingham, engineers at UAB's Center for Biophysical...

Study suggests salt might be 'nature's antidepressant'

...ause people liked the taste and it had become fairly inexpensive. Today, 77 percent of our salt intake comes from processed and restaurant foods, like frozen dinners and fast food. Evolution might have played an important part in the human hankering for salt. Humans evolved from creatures that lived in s...

Freezing kidney cancer: Hot treatment should be new gold standard for destroying small tumors

...reezes the tumor. The tumor is then thawed by replacing the argon with helium. The procedure consists of two freezing and one thawing cycle, seeking a frozen margin beyond the tumor edge to ensure death of the entire tumor. After the cryoprobe is removed, a small bandage is placed over the skin puncture sit...

Inactivity of proteins behind longer shelf life when freezing

... frozen biological material, for example food, can be kept for a long time without perishing. A study by researchers at the University of Gothenburg, Sweden, ...

Antioxidants in Midwestern black raspberries influenced by production site

...ack raspberry cultivars harvested from eight production sites. Samples were frozen within 24 h of harvest in on-farm, conventional freezers. These materials were transported in their frozen state to the Ohio Agricultural Research and Development Center and stored i...

Forget the freezer: Research suggests novel way to control water behavior

...tudies at Boston University. "Phenomenologically, their findings are very striking. In particular, the observation that a tri-layered system, with two frozen layers sandwiching a fluid intermediate layer, can exist as an equilibrium state because of confinement is very exciting." Debenedetti noted there ...

Grape shapes

...ly rated based on elongation. "Visual inspection supported the SigmaScan analysis," reported the researchers. The grapes used for the study were frozen at the time of harvest and did not need to be thawed or cut to be photographed. Ten grapes were photographed at one time, but more grapes could be sho...

Tiny details in three dimensions

... of the disease. Shock freezing maintains original condition / Resolution up to 5 nanometers In cryo-electron tomography the organism is shock frozen so that its original condition is retained. Chemical pretreatment, which is often associated with modifying structures and properties, is no longer ne...

Global warming threatens Antarctic sea life

...he Antarctic climate from chemical signals preserved in ancient clamshells. As temperatures dropped about 41 million years ago and crabs and fish were frozen out, the slow-moving predators that remained could not keep up with their prey. Snails, once out of danger, gradually lost the spines and other shell ...

January GEOLOGY media highlights

... glacier. The resulting ice slurry traveled up to 7.7 km. A co-generated second flow took a more tortuous initial path, before riding over the already frozen deposits of the first unit and beyond. For the first time, downstream evolution of the kinematic properties of propagating ice-slurry fronts could be ...

Peering inside the skull of a mouse to solve meningitis mystery

... time-lapse "movies," capturing activity that is not evident in still images made from slices of tissue viewed on a microscope slide. "A series of frozen images gave the misleading impression that the T-cells were engaging with the infected cells, but intravital microscopy clearly showed that the immune...

Rice's James Tour wins Feynman Prize

...ere his work on the atomic bomb as part of the Manhattan Project and his investigation of the space shuttle Challenger explosion, which he traced to a frozen O-ring. ...

UAF researchers to present at AGU press briefing

...ter permafrost is thawing and therefore releasing methane. Permafrost can affect methane release in two ways. Both underwater and on land, it contains frozen organic material such as dead plants and animals. When permafrost thaws, that organic material decomposes, releasing gases like methane and carbon dio...

Goose eggs may help polar bears weather climate change

... As polar bears adapt to a warming Arctica frozen seascape that cleaves earlier each springthey may find relief in an unlikely source: snow goose eggs. New calculations show that changes in the timing...

News from the December 2008 Journal of the American Dietetic Association

...called menu modeling "to evaluate actual and recommended food intake patterns using specific foods readily available in supermarkets including canned, frozen and convenience products," the researchers developed 35 different daily menus geared toward women ages 31 to 50 that they named "baseline," "transitio...

Protein 'tubules' free avian flu virus from immune recognition

...s by scattering X-rays through a crystal of the molecule. They substantiated their structure with cryo-electron microscopy, which makes images of tiny frozen structures using an extremely powerful electron microscope. That structure revealed a previously unsuspected idiosyncrasy of NS1 in H5N1 that coul...

Very cold ice films in laboratory reveal mysteries of universe

...ures at the mesoscale than under terrestrial conditions, and in some cases can be amorphous in form, that is like a glass with the molecules in effect frozen in space, rather than as crystals. For ice to be amorphous, water has to be cooled to its glass transition temperature of about 130 K without ice crys...
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