News tagged with progenitors
Related topics: stem cells , cells
11.5 billion years old: Stellar archaeology traces Milky Way's history
(Phys.org) -- Unfortunately, stars don't have birth certificates. So, astronomers have a tough time figuring out their ages. Knowing a star's age is critical for understanding how our Milky Way galaxy built ...
May 30, 2012 |
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Genes underlying the key domestication process in sorghum and other cereals
A study by a team of university and government scientists led by a Kansas State University researcher, indicates that genes responsible for seed shattering -- the process by which grasses disseminate their seeds -- were under ...
May 14, 2012 |
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Insulin, nutrition prevent blood stem cell differentiation in fruit flies
UCLA stem cell researchers have shown that insulin and nutrition keep blood stem cells from differentiating into mature blood cells in Drosophila, the common fruit fly, a finding that has implications for studying inflammatory ...
Mar 12, 2012 |
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World nourishment at risk of being diminished: Wild cereals threatened by global warming
A 28-year comparative study of wild emmer wheat and wild barley populations has revealed that these progenitors of cultivated wheat and barley, which are the best hope for crop improvement, have undergone changes over this ...
Feb 23, 2012 |
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Chromosome analyses of prickly pear cacti reveal southern glacial refugia
Analysis of chromosome number variation among species of a North American group of prickly pear cacti (nopales) showed that the most widespread species encountered are of hybrid origin. Those widespread species ...
Feb 14, 2012 |
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Blood progenitor cells receive signals from niche cells and the daughter blood cells they create
Maintaining balance is crucial. In Drosophila, the common fruit fly, the creation and maintenance of the blood supply requires such balance.
Dec 22, 2011 |
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Skeletons point to Columbus voyage for syphilis origins
Skeletons don't lie. But sometimes they may mislead, as in the case of bones that reputedly showed evidence of syphilis in Europe and other parts of the Old World before Christopher Columbus made his historic voyage in 1492.
Other Sciences / Archaeology & Fossils
Dec 20, 2011 |
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Citrus indica Tanaka - a progenitor species of cultivated Citrus
A group of enthusiastic cytogeneticists (Marlykynti Hynniewta, Surendra Kumar Malik and Satyawada Rama Rao) from North Eastern Hill University show that C. indica occupies a special taxonomic position, as reflected in the ...
Nov 10, 2011 |
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Biologists identify light-regulated mechanism in cyanobacteria as aid to optimizing photosynthesis
(PhysOrg.com) -- Indiana University biologists have uncovered how a control system works in producing the important light-harvesting antennae that power photosynthesis in cyanobacteria, the microorganisms ...
Nov 03, 2011 |
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Bioengineers reprogram muscles to combat degeneration
Researchers at the University of California, Berkeley, have turned back the clock on mature muscle tissue, coaxing it back to an earlier stem cell stage to form new muscle. Moreover, they showed in mice that ...
Sep 22, 2011 |
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Cells derived from pluripotent stem cells are developmentally immature
Stem cell researchers at UCLA have discovered that three types of cells derived from human embryonic stem cells and induced pluripotent stem cells are similar to each other, but are much more developmentally immature than ...
Aug 17, 2011 |
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Human-cell-derived model of ALS provides a new way to study the majority of cases
For decades, scientists have studied a laboratory mouse model that develops signs of the paralyzing disease amyotrophic lateral sclerosis (ALS) as they age. In a new study appearing in Nature Biotechnology, investigators at Nat ...
Aug 11, 2011 |
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New technique boosts efficiency of blood cell production from human stem cells
Scientists at the Salk Institute for Biological Studies have developed an improved technique for generating large numbers of blood cells from a patient's own cells. The new technique will be immediately useful ...
Jul 15, 2011 |
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Adult stem cells carry their own baggage: Epigenetics guides stem cell fate
Adult stem cells and progenitor cells may not come with a clean genetic slate after all. That's because a new report in the FASEB Journal shows that adult stem or progenitor cells have their own unique "epigenetic signat ...
Jun 30, 2011 |
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X-ray illumination of supernova ejecta
(PhysOrg.com) -- Supernovae are the explosive deaths of massive stars, cataclysms that disburse into space the chemical elements produced by nuclear reactions inside the progenitor stars. Understanding chemical ...
Jun 24, 2011 |
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