News tagged with pigment cells
Designing a dye you can count on
Natural substances such as chlorophyll and the heme pigment of red blood cells contain colorful molecules known as porphyrins. They owe their exceptional visual characteristics to a ‘macrocyclic’ ...
May 24, 2012 |
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Plants may have a single ancestor
(PhysOrg.com) -- An international group of scientists has analyzed the DNA of primitive microscopic algae, and their findings suggest that all plants on Earth may have had a single ancestor.
Feb 17, 2012 |
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Flexible adult stem cells, right there in your eye
In the future, patients in need of perfectly matched neural stem cells may not need to look any further than their own eyes. Researchers reporting in the January issue of Cell Stem Cell, a Cell Press publication, have identi ...
Jan 05, 2012 |
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Genetic study of black chickens shed light on mechanisms causing rapid evolution in domestic animals
The genetic changes underlying the evolution of new species are still poorly understood. For instance, we know little about critical changes that have happened during human evolution. Genetic studies in domestic animals can ...
Dec 22, 2011 |
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Cellular laser microsurgery illuminates research in vertebrate biology
Using an ultrafast femtosecond laser, researchers at Tufts University in Medford, Mass., were able to label, draw patterns on, and remove individual melanocytes cells from a species of frog tadpole (Xenopus) without damaging ...
Aug 17, 2011 |
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Engineering blue-hued flowers
Flower color in plants is determined by pigments such as aurones, anthocyanins, and carotenoids. Research has found that the ultimate color displayed is dependent not only on the pigment present, but also on other factors, ...
Jun 27, 2011 |
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First patients enroll in US stem cell trials on blindness
The first clinical trials that examine the use of stem cells to treat two forms of blindness are ready to begin now that patients have been enrolled, a US company announced on Thursday.
Medicine & Health / Medical research
Jun 16, 2011 |
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Researchers report progress using iPS cells to reverse blindness
Researchers have used cutting-edge stem cell technology to correct a genetic defect present in a rare blinding disorder, another step on a promising path that may one day lead to therapies to reverse blindness ...
Jun 15, 2011 |
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Study of stem cell diseases advanced by new technique
A rare genetic disease called dyskeratosis congenita, caused by the rapid shortening of telomeres (protective caps on the ends of chromosomes), can be mimicked through the study of undifferentiated induced pluripotent stem ...
May 23, 2011 |
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The self-made eye: Formation of optic cup from ES cells
Groundbreaking research from the RIKEN Center for Developmental Biology (CDB) shows how mouse stem cells spontaneously form into optic cups, the precursors of eyes. A report on this research, published this week in Nature, sheds ...
Apr 06, 2011 |
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Lasers ID deadly skin cancer better than doctors
High-resolution images from a laser-based tool developed at Duke University could help doctors better diagnose melanoma, the deadliest form of skin cancer, while potentially saving thousands of lives and millions of dollars ...
Feb 23, 2011 |
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Bioelectrical signals turn stem cells' progeny cancerous
Biologists at Tufts University School of Arts and Sciences have discovered that a change in membrane voltage in newly identified "instructor cells" can cause stem cells' descendants to trigger melanoma-like ...
Medicine & Health / Medical research
Oct 19, 2010 |
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'Co-conspirator' cells could hold key to melanoma prediction, prevention
New research on how skin cancer begins has identified adjacent cancer cells that scientists are calling "co-conspirators" in the genesis of melanoma, in findings that could someday hold the key to predicting, preventing and ...
Aug 30, 2010 |
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New screen offers hope for copper deficiency sufferers
Copper deficiency diseases can be devastating. Symptoms can range from crippling neurological degeneration in Menkes disease - a classic copper deficiency disease - to brittle bones, anaemia and defective skin pigmentation ...
Medicine & Health / Medical research
Aug 17, 2010 |
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When it comes to security, think 'natural'
Security systems could be more effective if officials looked at how organisms deal with threats in the natural world, University of Arizona researchers suggest in the May 20 edition of the journal Nature.
May 20, 2010 |
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