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A cell type with the potential for making the four major types of human tissue has been found in the stomach and small intestine by a Medical College of Georgia researcher.
These VENT cells have been found in addition to the three sources of cells typically associated with gastrointestinal development, says Dr. Paul Sohal, MCG developmental biologist, who first identified these cells nearly a decade ago.
Identification of VENT – ventrally emigrating neural tube – cells within the
While the vision-impaired Hubble Space Telescope needed optical doctoring from shuttle astronauts, vision researchers back on Earth were wondering if the human eye was clever enough to fix itself.
Now a neurobiology study at Cornell University suggests that internal parts of the eye indeed can compensate for less-than-perfect conditions in other parts — either developmentally (during the lifetime of one individual) or genetically (over many generations).
Results of the study, “I
Researchers at the University of Pittsburgh Cancer Institute (UPCI), in collaboration with Johns Hopkins University School of Medicine have found that a recently discovered gene plays an essential role in mediating apoptosis, or cell death, in colorectal cancer cells. The results are published in the Feb. 18 issue of Proceedings of the National Academy of Sciences.
The gene, PUMA, or p53 up-regulated modulator of apoptosis, is controlled by p53 – a tumor-suppressing gene that prevents norma
Gaiker y Santa Ana de Bolueta Abrasión, S. A., have developed a novel, rapid and efficient method to reduce abrasion in industrial parts.
The considerable wear suffered by industrial parts and equipment and by extracting tools that come into contact with abrasive materials forces companies to make periodic maintenance breaks in normal activity, thus causing considerable losses in time and money.
Santa Ana de Bolueta Abrasión, S. A., together with Gaiker, have developed a novel metho
Human intelligence is like a mental juggling act in which the smartest performers use specific brain regions to resist distraction and keep attention focused on critical pieces of information, according to a new brain imaging study from Washington University in St. Louis.
“Some people seem to perform better than others in novel, mentally-demanding situations, but why?” asks Jeremy R. Gray, Ph.D., co-author of the study to be posted Feb. 18 in an advance online issue of the journal Nature N
Sex and gender scientists explore a revolution in evolution
Darwin may have been wrong about sex. Or at least too narrow minded
At the annual meeting of the American Association for the Advancement of Science, leading researchers and theorists in the evolution of sexual behavior will gather to present the growing evidence that Darwin’s idea of sexual selection requires sweeping revisions.
’’I don’t have a theory to address it all by any means,’