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Dormancy in Medical News

Stem cells: Deathly awakening by interferon

... headed by Professor Andreas Trumpp of DKFZ. dormancy is an important protection mechanism of stem ... primarily during cell division. In addition, dormancy helps them escape attacks of many cytotoxins, ... we might be able to wake up from dormancy not only hematopoietic stem cells but also tumor ...

E. coli persists against antibiotics through HipA-induced dormancy

... of Science . "For antibiotics to work, bacteria have to be growing. dormancy stops everything, allowing some bacteria to persist after treatment," said ... note. Overexpression of HipA previously had been associated with cell dormancy and bacterial persistence. Evidence had pointed to kinase activity. ...

Dormant stem cells for emergencies

... a group of stem cells in mouse bone marrow that remain in a kind of dormancy almost throughout life. Trumpp, who has been head of the Cell Biology ... about 15 percent of the whole stem cell population, remain in a kind of dormancy with very low metabolism. In contrast, stem cells of the larger group, the ...

New Hampshire Cosmetic Plastic Surgeon Discusses Silicone Breast Implants after Breast Augmentation becomes No. 1 Cosmetic Surgery Procedure

... Silicone breast implants went through a long period of relative dormancy after a series of lawsuits prompted their removal from the market. Now, two years after the U.S. Food and Drug Administration approved them for use ...

Dormant cancer cells rely on cellular self-cannibalization to survive

... for eliminating dormant ovarian cancer cells and curing more patients. Whether cancer cells die an autophagic death, remain dormant or exit dormancy to grow again depends on the balance between ARHI's tumor-suppressing activity and the anti-autophagic and proliferative activity of these ...

New Hope Against the Cold Sore Virus

... finally offering them the possibility of a cure. Scientists at Duke University say they've unlocked the mystery of how herpes simplex 1 slips into dormancy and stays dormant -- evading the drugs that might otherwise wipe it out. Buoyed by that finding, the same team is testing an experimental agent ...

Hibernation-like behavior in Antarctic fish -- on ice for winter

... is a pretty complex subject. Fish are generally incapable of suppressing their metabolic rate independently of temperature. Therefore, winter dormancy in fish is typically directly proportional to decreasing water temperatures. The interesting thing about these Antarctic cod is that their metabolic ...

Immune system can drive cancers into dormant state

... in the advance online publication of Nature. "Thanks to the animal model we have developed, scientists can now reproduce this condition of tumor dormancy in the laboratory and look directly at cancer cells being held in check by the immune system," says co-author Robert Schreiber, Ph.D., Alumni ...

Experiments In Outer Space To Determine single Cell Survival

... Jeff Brinker. Groups of such long-lived cells may also serve as models to investigate how tuberculosis bacteria survive long periods of dormancy within human bodies. En masse, they also may be used to generate signals to repel harmful bacteria from the surfaces of surgical tools like ...
Dormancy in Medical Dictionary

Spores

... is a reproductive cell produced by plants (fungi, moss, ferns) and some protozoa and bacteria . The spore often fully develops after a state of dormancy or hibernation. Spores of the bacterium Clostridium tetani live in the soil and are found around the world. In the spore form, C. tetani may ...
Dormancy in Biological News

Super-sleepers could help super-sizers!

... of their cells changes radically during the dormancy period allowing the frogs to maximise the use of ... plants" of the cell, was measured during the dormancy period, it was found to be significantly higher ... short periods of spontaneous arousal during the dormancy period, in some cases even daily. Burrowing ...

Pathway found that lets mosquitoes fatten up, slow down for winter

... day-length environments to either impose a dormancy cycle or to prevent their shift to diapause. Some ... suggested the insulin signaling pathway affects dormancy in the roundworm and fruit fly. These are ... used by lots of organisms to regulate their dormancy period, Denlinger said. Warmer temperatures ...

Warming climate threatens California fruit and nut production

... reduced chilling requirements and new management strategies for breaking dormancy in years of insufficient winter chill," Luedeling said. About winter ... state that lasts through late fall and winter. In order to break dormancy and resume growth, the trees must receive a certain amount of winter ...

Stowers Institute's Hawley Lab identifies factors responsible for restart of meiotic cycle

... appear in the Dec. 4, 2007 issue of PLoS Biology. The long period of dormancy that interrupts the process that parses out the correct number of ... state until the female reaches sexual maturity. Extended periods of dormancy may last many years in organisms like humans, but shorter periods of ...

Mechanism for regulation of growth and differentiation of adult muscle stem cells is revealed

... regeneration, which is a natural response to injury and disease, environmental cues cause adult muscle stem cells (satellite cells) to shift from dormancy to actively building new muscle tissue. Although the signaling pathways controlling muscle regeneration are fairly well known, how these signals ...

Genetic snooze button governs timing of spring flowers

... many plants that grow in temperate climates. "Bud dormancy is not broken until the plant has 'counted' a ... processes such as the regulation of bud dormancy in trees. Bud dormancy may be similar to vernalization or, the Wisconsin ...

Mosquito genes explain response to climate change

... that the mosquito has changed genetically in response to recent, rapid climate change and now uses shorter, more southern day lengths to initiate dormancy in a landmark study that appeared in the Proceedings of the National Academy of Sciences (Dec. 4, 2001). The new study ?funded by the National ...

Scientists discover that ancient genes dictate flowering, fall bud set

... northern latitudes compared to those from southern latitudes. Because winter arrives earlier at northern latitudes, trees need to set bud and enter dormancy earlier than trees at more southern latitudes. The article concludes that the CO and FT genetic pathway is key to understanding adaptation to ...

Where have all the butterflies gone?

... This winter's weather conditions may have a lot to do with the drop in numbers. The early winter was mild, with not enough cold to end the winter dormancy or "diapause" of most butterflies, so they did not emerge to take advantage of early warm weather in February. Then March turned cold and wet, wiping ...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

... Jeff Brinker. Groups of such long-lived cells may also serve as models to investigate how tuberculosis bacteria survive long periods of dormancy within human bodies. En masse, they also may be used to generate signals to repel harmful bacteria from the surfaces of surgical tools like ...

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Dormancy in Biological Dictionary

Zygospore

... thick, resistant walls and enters a period of dormancy ... Zygospore's - Definition of ... thick, resistant walls and enters a period of dormancy before ... Information about zygospore in ... thick, resistant walls and enters a period of dormancy ... Pronunciation of zygospore . zygospore ...

Dormancy

... dormancy is a period in an organism's life cycle when ... therefore helps an organism to conserve energy. dormancy tends to be closely associated ... (Redirected from Seed dormancy ) Jump to: navigation, search ... Morphological ...

Megasporangium

... seed coat's most important function is to provide _.a) a non-stressful environment for the megasporangium (b) the means for dispersal (c) dormancy (d) a ... - ovary - endospern - megasporangium - megagametophyte more then one possible answer pleasr only answer iif u are 100% sure ...

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(Date:4/24/2014)... terminology, and the relevance of palliation in advanced ... randomized controlled trials (RCTs). This is the result ... Quality and Efficiency in Health Care (IQWiG), which ... Together with external experts, IQWiG analysed studies on ... malignant melanoma, and pancreatic cancer. For this purpose, ...
(Date:4/24/2014)... awarded one of 30 grants from the National Cancer ... Site in its new National Clinical Trials Network ... of investigators charged with distributing resources in a more ... system reflects recommendations from a 2010 Institute of ... goals:, Faster design, launch, and completion of ...
(Date:4/23/2014)... by Massachusetts General Hospital (MGH) investigators may lead to ... a serious medical problem use of fecal material ... the Clostridium difficile ( C. difficile ) ... the journal Clinical Infectious Diseases , the researchers ... donors unrelated to patients was as successful in curing ...
(Date:4/23/2014)... J. O,Shea, M.D., scientific director at the National Institute ... been named the 2014 recipient of the Ross Prize ... open-access journal Molecular Medicine . The award will ... Academy of Sciences in Manhattan, followed by scientific presentations ... part of the National Institutes of Health. , The ...
(Date:4/23/2014)... researchers have identified an important enzyme pathway that helps ... few chromosomes, a condition that has been directly linked ... professor of biochemistry, found that near the end of ... that ensures any breaks in DNA are fully repaired ... to daughter cells. This process helps safeguard against some ...
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(Date:4/23/2014)... contribute to early fetal death according to a new ... Children,s Hospital Los Angeles and Ulaanbaatar, Mongolia the ... paper published today in the journal BMC Pregnancy ... between seasonal ambient air pollutants and pregnancy loss in ... the highest levels of air pollution of all world ...
(Date:4/23/2014)... Like a hungry diner ripping open a dinner roll, ... must tear open a hydrogen molecule. Now researchers have ... the two halves of its hydrogen feast. The view ... make the catalyst work better for alternative energy uses. ... shown precisely where the hydrogen halves end up in ...
(Date:4/23/2014)... research shows that male black widow spiders prefer their ... example of mate preference by male spiders. ... and Maydianne Andrade, a professor in UTSC,s Department of ... the wild that males overwhelmingly chose to mate with ... can tell whether a potential mate is well-fed and ...
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