Brain cells record their activity in gene expression, new study finds

From burning your palm on a hot pan handle to memorizing the name of a new acquaintance, “anytime you experience something, your neurons are active,” says Kelsey Tyssowski, a graduate student in genetics at Harvard Medical School. Different experiences stimulate different patterns of activity in brain cells. Researchers want to track these activity patterns to better understand how the brain […]

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Gene twist can make your blood pressure spike from salt

(HealthDay)—New research sheds light on why some people’s blood pressure is especially sensitive to salt. The research team previously discovered that a natural gene variation that occurs in 48 percent of people increases a person’s chances of having blood pressure that’s sensitive to salt. Their new study revealed how this gene variant prevents the body from eliminating excess salt. The […]

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Study characterizes proteins resulting from RAS gene mutations, found in more than 20 percent of all human cancers

When a RAS gene operates normally, it acts as an on/off switch for cell signaling to control cell proliferation. But when the gene mutates, the switch jams into the “on” position, allowing cells to proliferate uncontrollably. This unstoppable cascade inevitably leads to cancer. “The mutation in the gene is very common in pancreatic and colon cancer,” said Neil Kelleher, the […]

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Gene jumpstarts regeneration of damaged nerve cells

Searching the entire genome, a Yale research team has identified a gene that when eliminated can spur regeneration of axons in nerve cells severed by spinal cord injury. “For the first time, the limits on nerve fiber regeneration were studied in an unbiased way across nearly all genes,” said Stephen Strittmatter, the Vincent Coates Professor of Neurology and senior author […]

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Gene test for growth hormone deficiency developed

A new test developed by University of Manchester and NHS scientists could revolutionise the way children with growth hormone deficiency are diagnosed. Children suspected of having GHD – which cause growth to slow down or stop and other serious physical problems—currently require a test involving fasting for up to 12 hours. The fasting is followed by an intravenous infusion in […]

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Machine learning finds tumor gene variants and sensitivity to drugs in The Cancer Genome Atlas

Matching unique genetic information from cancer patients’ tumors with treatment options – an emerging area of precision medicine efforts – often fails to identify all patients who may respond to certain therapies. Other molecular information from patients may reveal these so-called “hidden responders,” according to a Penn Medicine study in Cell Reports this week. The findings are published alongside several […]

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Injecting gene cocktail into mouse pancreas leads to humanlike tumors

Novel technology developed at UT Health San Antonio gives rise to mouse pancreatic tumors that have the same traits as human pancreatic cancer. A U.S. patent is pending on the invention. The technology could revolutionize studies of pancreatic cancer initiation and progression and spur new drug development. An article published in the journal Carcinogenesis (Oxford University Press) describes this unique […]

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