Complex biological networks control a range of functions in the human body from metabolic processes to the sleep cycle. Though scientists have ever-increasing volumes of data about the effects these complex systems produce, fully describing them mathematically has proven difficult. Without a firm understanding, effective interventions continue to be elusive, leaving more than 50 million […]
Category: Clocks & Sleep
Brain structure differences provide clues to substance use risks
When studying substance use disorders, scientists had thought some of the effects on the brain could stem from use of the substances themselves: People start drinking alcohol in early teens, that alcohol has a neurotoxic effect on the developing brain that begets more alcohol drinking, and a similar dynamic occurs with other substances. But research […]
Brain tumors hijack circadian clock to grow
Virtually every cell in the human body has an internal clock. These clocks take their cues from a central clock in the brain. In a normal, biological process called synchrony, the central clock coordinates daily rhythms around the body, so that every cell and tissue recognizes the same external time of day. Knowing local time […]
Yoo receives grant from Hereditary Disease Foundation
Andrew Yoo, PhD, a professor of developmental biology at WashU Medicine, has received the 2024 Transformative Research Award, a two-year $1 million grant from the Hereditary Disease Foundation. Yoo and his collaborator, Osama Al Dalahmah, MD, PhD, of Columbia University, will use this support to pursue potential therapeutics for Huntington’s disease, an inherited neurodegenerative disorder […]
Zhao, Musiek receive NIH grant to study neurodegenerative diseases
Guoyan Zhao, PhD, an assistant professor of genetics and of neurology, and Erik Musiek, MD, PhD, the Charlotte & Paul Hagemann Professor of Neurology, both of WashU Medicine, have received a $433,000 grant from the National Institute on Aging of the National Institutes of Health (NIH) to study brain cells called astrocytes and their roles […]
WashU researchers use genetics to find psychopathology risks
When trying to understand how genetic influences factor into youth behavior, researchers at Washington University in St. Louis have taken the “big trawl” approach, casting their net wide to pull in all the measured traits, behaviors and environments that make up who we are and examine associations with the genetic building blocks comprising risk for […]
Aging-related genomic culprit found in Alzheimer’s disease
With new technique, patient-derived neurons accurately model late-onset Alzheimer’s, point to potential treatments
Daily rhythms depend on receptor density in biological clock
mans and other animals, signals from a central circadian clock in the brain generate the seasonal and daily rhythms of life. They help the body to prepare for expected changes in the environment and also optimize when to sleep, eat and do other daily activities. Scientists at Washington University in St. Louis are working out […]
García-Reyes, Castro named to Gilliam Fellows Program
Howard Hughes Medical Institute honors duo’s research
Researchers find biological clues to mental health impacts of prenatal cannabis exposure
Scientists are trying to understand how cannabis may affect long-term neurodevelopment when people were exposed to it in the womb. Previous work by Washington University in St. Louis researchers Sarah Paul and David Baranger in the Behavioral Research and Imaging Neurogenetics (BRAIN) lab led by Ryan Bogdan, PhD, found associations between prenatal cannabis exposure and potential mental health conditions in childhood […]
Chen awarded two Scialog grants to study the molecular basis of cognition
Yao Chen, PhD, an assistant professor of neuroscience at Washington University School of Medicine in St. Louis, is part of two teams that have been awarded grants to study the molecular processes that underlie memory and cognition. The grants are part of the “Research Corporation for Science Advancement’s Scialog: Molecular Basis of Cognition” initiative. The […]
The brain has a waste removal system and scientists are figuring out how it works
The brain needs to flush out waste products to stay healthy and fend off conditions like Alzheimer’s disease. Scientists are beginning to understand how the the brain’s waste removal system works. [Transcript] A MARTÍNEZ, HOST: Turns out the brain needs regular cleaning. Otherwise, it gets clogged up with waste products, including some associated with diseases […]
Holtzman, Chen recognized for exceptional Alzheimer’s research
Morby prize from Cure Alzheimer’s Fund honors discovery of T cells’ role in neurodegeneration
Chemo for glioblastoma enhanced by tapping into cell’s daily rhythms
Study reveals mechanism for why treatment appears to work better in the morning
Nerve stimulation for sleep apnea is less effective for people with higher BMIs
Popular alternative to CPAP machines may not be appropriate for all
Immunotherapy for Alzheimer’s disease shows promise in mouse study
Alzheimer’s disease starts with a sticky protein called amyloid beta that builds up into plaques in the brain, setting off a chain of events that results in brain atrophy and cognitive decline. The new generation of Alzheimer’s drugs — the first proven to change the course of the disease — work by tagging amyloid for […]
Neurons help flush waste out of brain during sleep
There lies a paradox in sleep. Its apparent tranquility juxtaposes with the brain’s bustling activity. The night is still, but the brain is far from dormant. During sleep, brain cells produce bursts of electrical pulses that cumulate into rhythmic waves — a sign of heightened brain cell function. But why is the brain active when we […]
Ju named Morriss Professor
Neurologist studies role of sleep in neurodegenerative diseases
WashU awarded up to $20M to create portable device to scan for eye diseases
High-tech imaging tool could be used in other medical fields
Life span increases in mice when specific brain cells are activated
Brain cells communicate with fat tissue to produce cellular fuel, counteract effects of aging
Clues to preventing Alzheimer’s come from patient who, despite genetics, evaded disease
Breaking link between early, late stages of disease may prevent dementia
Lowering a form of brain cholesterol reduces Alzheimer’s-like damage in mice
Targeting cholesterol potentially could help treat Alzheimer’s, related dementias
Avidan, England, Miller elected to National Academy of Medicine
Membership is one of highest U.S. honors in health and medicine
NIH funds study of ultrasound with genetics to treat brain disorders
Researchers have developed methods to study and manipulate areas of the brain, though many of those methods are restricted by the limited depth that light can reach within the brain. A multidisciplinary team at Washington University in St. Louis plans to overcome that limitation by integrating ultrasound with genetics to precisely modify neurons in the […]
Paul Taghert awarded $1.9 million Outstanding Investigator Award
The National Institutes of General Medical Sciences has awarded an Outstanding Investigator Award of nearly $2 million to Paul Taghert, PhD, Professor of Neuroscience at Washington University School of Medicine, to study how the circadian clock orchestrates multiple biological cycles that operate at different phases. Physiological and behavioral rhythms, such as sleep, hormone fluxes, and eating, […]
Drug for rare form of ALS, based in part on WashU research, approved by FDA
A new drug has been approved by the Food and Drug Administration (FDA) for a rare, inherited form of amyotrophic lateral sclerosis (ALS), a paralyzing neurological disease. Known as tofersen, the drug has been shown to slow progression of the deadly disease. International clinical trials of tofersen, developed by the global biotechnology company Biogen Inc., […]
Sleeping pill reduces levels of Alzheimer’s proteins
More research needed to determine if sleep medications prevent, delay Alzheimer’s
Multiple substance use disorders may share inherited genetic signature
Findings could lead to universal therapies for alcohol, tobacco, cannabis, opioid addictions
Discovery of T cells’ role in Alzheimer’s, related diseases, suggests new treatment strategy
Findings, in mice, open up drug development possibilities for brain diseases linked to tau protein
Miller receives Rainwater Prize for Brain Research
Honored for work developing new kind of therapy for neurodegenerative diseases
Challenges With Tailoring Diets in Multiple Sclerosis: Laura Piccio, MD, PhD
The neurologist and physician scientist at Washington University in St. Louis provided insight on the general dieting strategies patients with multiple sclerosis should take as more information becomes available. [WATCH TIME: 6 minutes]
Gut bacteria affect brain health, mouse study shows
Findings suggest new approach to treating Alzheimer’s, other neurodegenerative diseases
Future Thoughts and Reason for Excitement in ALS: Timothy Miller, MD, PhD
“These trials don’t go without huge input and commitment from the participants and of course, their caregivers, and the clinical trial sites. I have the privilege of speaking to you about the trial as the lead author of this paper, but this is a team effort and includes a large group of people from multiple […]
Study yields clues to why Alzheimer’s disease damages certain parts of the brain
Findings could help explain rare symptoms such as problems with language, vision
Herzog installed as Viktor Hamburger Distinguished Professor
Installation talk, titled “For Whom the Bells Toll: Networked Circadian Clocks and Clock Watchers”
Rejuvenated immune cells can improve clearance of toxic waste from brain
Findings in mice suggest new therapeutic approach to Alzheimer’s, other age-related diseases
Understanding, treating pain, reducing opioid use, aim of $11.7 million grant
Funding from NIH HEAL Initiative
Cellular housekeeping process implicated in fatal neurological disorder
Neurons made from Huntington’s disease patients’ skin cells shed light on cognitive decline
Investigational drug for genetic form of ALS improves disease’s molecular signs
Extended use of tofersen may help stabilize muscle strength, control
Problems persist for kids exposed to cannabis in the womb
Research finds kids with prenatal exposure show more signs of psychopathology
How deep sleep keeps our brains intact
WashU was first to reveal the intricate link between fragmented sleep and dementia
Risky driving behaviors increase as common sleep disorder worsens
Diagnosing, treating sleep apnea may make driving safer for older adults
Kerschensteiner to research visual pathways
Five-year $2 million grant from NIH
Hit the sleep ‘sweet spot’ to keep brain sharp
Too little and too much sleep linked to cognitive decline
Emotional aspects of chronic pain isolated in brain circuitry
Animal study could help ID new treatment targets for negative emotions linked to pain
Creed honored for research involving mood, chronic pain, substance use
Neuroscientist receives award from Brain & Behavior Research Foundation
$35 million to support study of sleep disorder linked to neurodegeneration
International team seeks hidden signs of brain damage in REM behavior disorder
‘Fight or flight’ – unless internal clocks are disrupted, study in mice shows
For humans and animals, many aspects of normal behavior and physiology rely on the proper functioning of the body’s circadian clocks.
Time until dementia symptoms appear can be estimated via brain scan
Alzheimer’s dementia predicted by brain amyloid levels, age
Cannabis use disorder: another COVID risk factor
Research indicates problematic marijuana use is correlated with poorer COVID-19 outcomes