Fight or flight: Serotonin neurons prompt brain to make the right call

Known for its role in relieving depression, the neurochemical serotonin may also help the brain execute instantaneous, appropriate behaviors in emergency situations, according to a new Cornell study published Feb. 1 in Science. The researchers studied brain activity patterns in mice. If a mouse was experiencing a threat, dorsal raphe serotonin neurons would fire during…

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Do all chemotherapies have equal long-term heart risk?

IMAGE: Gregory Aune, M.D., Ph.D., of UT Health San Antonio, (pointing) served on a team that found different chemotherapy drugs used to treat children with cancer appear to have different risks… view more  SAN ANTONIO — In long-term survivors of childhood cancer, cardiovascular disease is a leading cause of early death from non-cancer causes. In a…

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Progress with geriatrics legislation highlights collaboration for care as we age

IMAGE: Founded in 1942, the American Geriatrics Society (AGS) is a nationwide, not-for-profit society of geriatrics healthcare professionals that has — for 75 years — worked to improve the health, independence,… view more  Credit: (C) 2019, American Geriatrics Society New York (Jan. 31, 2019)—The American Geriatrics Society (AGS) today offered a ringing endorsement of the bipartisan…

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How whipworms wreak havoc on the gut

Signaling through interleukin-10 (IL-10) receptors on gut immune cells plays a critical role in protecting the gut lining and microbiota from disruption caused by whipworms, according to a study published January 31 in the open-access journal PLOS Pathogens by María Duque-Correa of the Wellcome Sanger Institute in the UK, and colleagues. The human gut is…

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The Harvard Museum of Natural History presents a new Climate Change exhibit exploring the global impact of the warming climate on the planet

IMAGE: Extreme drought and record heat have laid the groundwork for hugely destructive and deadly wildfires, including the now infamous «Camp Fire, » seen here a few hours after it ignited on… view more  Credit: NASA Earth Observatory image by Joshua Stevens. CAMBRIDGE, Mass., January 31— The Harvard Museum of Natural History announces the new Climate…

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When neurons get the blues: Hyperactive brain cells may be to blame when antidepressants don’t work

IMAGE: When neurons get the blues. This artistic image shows neurons derived from pluripotent stem cells of antidepressant (SSRI) resistant depressed patients. SSRI-resistant patient neurons display hyperactivity in response to serotonin…. view more  Credit: Salk Institute LA JOLLA—(January 31, 2019) The most commonly prescribed antidepressants, selective serotonin reuptake inhibitors (SSRIs), lift the fog of depression for…

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Short anti-rejection therapy protects transplants in diabetic animals

Transplanted pancreatic islets in diabetic animals can survive for a long period of time if the animals are treated with short anti-rejection therapy around the time of the transplant. This has been shown by researchers at Karolinska Institutet, Sweden, and the Diabetes Research Institute, University of Miami Miller School of Medicine, USA, in a new…

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