News tagged with cell lineages
Lineage trees reveal cells' histories
In recent years, a number of controversial claims have been made about the female mammal's egg supply – that it is renewed over her adult lifetime (as opposed to the conventional understanding that she is born with all ...
Feb 23, 2012 |
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Last universal common ancestor more complex than previously thought
Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of molecular parts, a chemical ...
Oct 05, 2011 |
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Scientists offer way to address 'age-old' questions
Scientists have devised a method to measure the impact of age on the growth rates of cellular populations, a development that offers new ways to understand and model the growth of bacteria, and could provide new insights ...
Sep 07, 2011 |
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'Policing' stops cheaters from dominating groups of cooperative bacteria
For cooperation to persist in the often violently competitive realm of bacteria, cheaters must be kept in line.
May 26, 2011 |
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Marking of tissue-specific crucial in embryonic stem cells to ensure proper function
Tissue-specific genes, thought to be dormant or not marked for activation in embryonic stem cells, are indeed marked by transcription factors, with proper marking potentially crucial for the function of tissues derived from ...
Dec 16, 2009 |
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Lung tissue generated from human embryonic stem cells
Scientists in Belgium have successfully differentiated human embryonic stem cells (hESC) into major cell types of lung epithelial tissue using a convenient air-liquid interface. The technique, published in BioMed Central's ...
Medicine & Health / Medical research
Nov 05, 2009 |
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Merkel cell originates from skin, not the neural crest: study
Case Western Reserve University School of Medicine assistant professor of pediatrics, neurosciences and otolaryngology, Stephen M. Maricich, M.D., Ph.D., and his team found that Merkel cells originate in the skin, not the ...
Medicine & Health / Medical research
Oct 02, 2009 |
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