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Scientific studies reveal dual brain origins and genetic cancer markers
Researchers at Stanford University have discovered that the human brain originates from two distinct, ancient nervous systems that evolved independently for hundreds of millions of years before connecting. By studying the gastrulation phase of embryonic development, scientists found that the hindbrain follows a separate developmental path from the forebrain and midbrain, which are driven by the OTX2 gene. This finding may provide new insights into neurological diseases.
In separate medical research, a team led by Dan Theodorescu at the University of Arizona has identified a potential marker for cancer in men. By analyzing over 4 million cell nuclei, researchers found that the loss of the Y-chromosome (mLOY) occurs more frequently in tissue adjacent to tumors. This spatial correlation in organs such as the prostate, lungs, and bladder could eventually assist in the early detection of previously overlooked cancers.
Additionally, a study published in JAMA Network Open suggests a genetic link to longevity. Analyzing data from the US and UK, researchers found that children of centenarians have a lower risk of cardiovascular disease and high blood pressure, and on average live approximately three years longer than control groups.
Entities
Dan Theodorescu · JCI Insight · Kyle Loh · Stanford University · University of Arizona
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 3 SOURCES] Men can lose the Y chromosome in individual body cells as they age, a phenomenon known as mosaic loss of Y (mLOY).
- [● 3 SOURCES] A research team led by Dan Theodorescu from the University of Arizona Cancer Center studied 1,000 tissue samples from 405 men.
- [● 3 SOURCES] The research team evaluated 4,327,315 cell nuclei.
- [● 3 SOURCES] The study examined tissue samples from eleven different organs or body regions, including the bladder, prostate, lung, intestine, and pancreas.
- [● 3 SOURCES] There is a spatial relationship between the loss of the Y chromosome and proximity to cancerous tissue.