As a medical scientist, he looks at how new findings will help develop new treatments to revive people now considered hopeless and restore brain damage.
Category: neuroscience – Page 135
Strengthening Public Health Systems For Healthier And Longer Lives — Dr. Ashwin Vasan, Commissioner, NYC Department of Health and Mental Hygiene.
Dr. Ashwin Vasan, MD, PhD is the Commissioner of the New York City Department of Health and Mental Hygiene (https://www.nyc.gov/site/doh/about/ab…).
Dr. Vasan is a primary care physician, epidemiologist and public health expert with nearly 20 years of experience working to improve physical and mental health, social welfare and public policy for marginalized populations here in New York City, nationally and globally. Since 2014 he has served on the faculty at the Columbia University Mailman School of Public Health and Vagelos College of Physicians and Surgeons, and he continues to see patients as a primary care internist in the Division of General Medicine at New York-Presbyterian Hospital/Columbia University Irving Medical Center.
Dr. Vasan most recently served as the President and CEO of Fountain House, a national nonprofit fighting to improve health, increase opportunity, and end social and economic isolation for people most impacted by mental illness. During his tenure, he grew the organization from a New York-based community mental health organization to a national network across eight markets, and grew the budget by nearly $20 million annually. He helped navigate the organization through COVID-19 by driving new telehealth and digital mental health programs while its physical locations closed, as well as developing new community-based outreach and accompaniment programs. Further, Dr. Vasan led the creation of a national policy office in Washington, D.C., working to change national mental health policy on the issues of crisis response services and funding for and quality of community-based mental health services.
From 2016 to 2019, Dr. Vasan served as the founding Executive Director of the Health Access Equity Unit at the NYC Department of Health and Mental Hygiene, which focused on the intersection of clinical and social services for the care of people involved in the justice system and other vulnerable populations — a first-of-its-kind government program in the nation. Under his leadership the team launched the NYC Health Justice Network — an innovative partnership between community-based primary care providers, criminal legal system reentry organizations, the Health Department and the Fund for Public Health — to embed tech-enabled, peer community health workers to promote health and wellness of people reentering the community from incarceration, and their families. The program is currently under evaluation through the CDC Prevention Research Center grant to NYU and CUNY.
Scientists propose that human consciousness evolved primarily for social survival, enabling better communication and interaction within communities, rather than just individual benefit, challenging traditional views on the evolution of subjective awareness.
Brain-computer interfaces (BCIs) can translate a person’s brainwaves into action, but these devices are vulnerable to hacking.
Researchers led by the University of California, Irvine have discovered how the TREM2 R47H genetic mutation causes certain brain areas to develop abnormal protein clumps, called beta-amyloid plaques, associated with late-onset Alzheimer’s disease. Leveraging single-cell Merfish spatial transcriptomics technology, the team was able to profile the effects of the mutation across multiple cortical and subcortical brain regions, offering first-of-their-kind insights at the single-cell level.
The study, published in Molecular Psychiatry, compared the brains of normal mice and special mouse models that undergo changes like those in humans with Alzheimer’s.
Findings revealed that the TREM2 mutation led to divergent patterns of beta-amyloid plaque accumulation in various parts of the brain involved in higher-level functions such as memory, reasoning and speech. It also affected certain cell types and their gene expression near the plaques.
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Elon Musk says his startup Neuralink has implanted a brain chip into a second patient and plans to perform another eight trials later this year.
Almost half the electrodes are working… for now.
(THE CONVERSATION) Racism steals time from people’s lives – possibly because of the space it occupies in the mind.
Question Is racial discrimination associated with brain connectivity, and are alterations in deep brain functional connectivity associated with accelerated epigenetic aging?
Findings In this cohort study of 90 Black women in the US, higher self-reported racial discrimination was associated with greater resting-state functional connectivity (RSFC) between the locus coeruleus (LC) and precuneus. Significant indirect effects were observed for the association between racial discrimination frequency and DNA methylation age acceleration.
Meaning These findings suggest that racial discrimination is associated with greater connectivity in pathways involved with rumination, which may increase vulnerability to stress-related disorders and neurodegenerative disease via epigenetic age acceleration.
Researchers at the University of California, Davis have developed a rapid, noninvasive tool to track the neurons and biomolecules activated in the brain by psychedelic drugs. The protein-based tool, which is called Ca2+-activated Split-TurboID, or CaST, is described in research published in Nature Methods.
There has been mounting interest in the value of psychedelic-inspired compounds as treatments for brain disorders including depression, post-traumatic stress disorder and substance use disorder. Psychedelic compounds like LSD, DMT and psilocybin promote the growth and strengthening of neurons and their connections in the brain’s prefrontal cortex. The new tool could help scientists unlock the benefits of psychedelic treatments for patients with brain disorders.
“It’s important to think about the cellular mechanisms that these psychedelics act upon,” said Christina Kim, an assistant professor of neurology at the UC Davis Center for Neuroscience and School of Medicine, and an affiliate of the UC Davis Institute for Psychedelics and Neurotherapeutics. “What are they? Once we know that, we can design different variants that target the same mechanism but with fewer side effects.”
Mental effort is generally unpleasant, as confirmed by a meta-analysis involving over 4,600 participants across various tasks and demographics. People often pursue challenging activities for the rewards, not the pleasure of the task. Credit: SciTechDaily.com.
A meta-analysis of 170 studies revealed that regardless of the task or population, increased mental effort correlates with feelings of frustration and stress. This phenomenon is less pronounced in Asian populations, possibly due to different educational experiences. Despite this, people still engage in mentally challenging tasks like chess, driven by the rewards rather than enjoyment of the effort itself.