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AFP
September 12, 2018
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Simple blood test may reveal your body’s inner clock

World

AFP
September 12, 2018

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Washington: Ever feel like it’s 7 am, even though the clock says 9 am? A team of researchers at Northwestern University said Monday they have designed a blood test that can measure a person’s inner body clock within 1.5 hours, an advance that may help personalize medical treatments in the future.

The study was published in the Proceedings of the National Academy of Sciences (PNAS), a peer-reviewed US journal. The “circadian rhythm” governs all cells in the body, and is a burgeoning field of research. Three US geneticists won the Nobel Prize for Medicine last year for discovering the molecules that drive the process. This biological clock regulates “all sorts of biological processes, when you feel sleepy, when you feel hungry, when your immune system is active, when your blood pressure is high, when your body temp changes,” said lead author Rosemary Braun, assistant professor of biostatistics at Northwestern University. When the clock is not regulated properly, research has shown a link to diseases like Alzheimer’s, heart problems and diabetes. Other research has pointed to the possibility some medical interventions like chemotherapy or blood pressure drugs might be more effective if taken at a certain time.

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