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Category: biotech/medical – Page 358

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.

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This is because the species undergoes a process called polyploidization, which is when a single chromosome is duplicated multiple times.

“It has amazing genetic diversity,” study co-author Tim O’Hara, a senior marine curator at Museums Victoria in Australia, told Newsweek.

“Instead of evolving into separate species over time, lineages readily hybridize with each other, so building up a great amount of genetic diversity. But not only that, they sometimes add their genomes together, so end up with four or more copies of each gene,” O’Hara said.

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We’re living in an aging society with cognitive loss placing stress on caregivers to monitor older adults struggling with memory decline.

MemPal is a wearable voice-based memory assistant that helps older adults live more independently and safely at home while also reducing caregiver burden. MemPal uses AI to automatically log the user’s actions in real-time based on visual context from a wearable camera without storing any image data, thereby preserving user privacy. With this activity log, MemPal helps older adults recall locations of misplaced objects and completion of past actions using simple voice-based queries such as “Hey Pal, where is my phone?” Additionally, MemPal provides context-based proactive safety reminders (e.g., “you may have forgotten to turn off the stove” or” you already took your medicine an hour ago”) and automatically tracks the completion on the MemPal app, allowing for remote monitoring by caregivers. Lastly MemPal can generate an automatic, summarized diary of activities for caregivers that may also prove useful for physicians to better understand patient behavior within their home.

MemPal was tested within the homes of 15 older adults (ages 65+). Our study demonstrated improved performance of object finding with audio-based assistance compared to no aid and positive overall user perceptions on the designed system. We discuss future design guidelines to adapt these types of wearable systems to various older adults’ needs.

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But the technology for using bridge RNA in genome editing is still in the early stages. Hsu’s team has demonstrated this system only in bacteria, though Hsu says he is optimistic that efforts to adapt the approach to work in mammalian cells will succeed. Chen says this system’s efficiency may not be as good as CRISPR’s is now but that improvements will come with time.

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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 and their gene expression near the plaques.

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The higher cost of owning an electric versus a gas-powered vehicle is a sticking point for many would-be buyers of EVs. Now, the price of a key EV component is falling, raising hopes that automakers could close the gap as they grapple with waning demand.

Batteries make up about one-third to one-fourth of the cost of producing an electric vehicle, according to Goldman Sachs analysts. The firm predicts the global average cost to automakers for batteries in 2024 will average about $115 per kilowatt hours, about 23% lower than last year. Prices are expected fall another 20% in 2025.

Tesla CEO Elon Musk (TSLA) recently noted costs have come down for lithium-ion cells used in EV batteries, a big reversal from the “massive spike” during the pandemic when car manufacturers put in “giant, giant orders.”

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Chromosomes are threadlike structures composed entirely of DNA that reside in the cells of all living things. Each one of these biological databanks contains a wealth of genetic information that scientists can use to glean insights into the history and evolution of life on Earth. Normally, the remains of dead creatures degrade over time, causing DNA to fragment. Most ancient animal DNA discovered to date has been incomplete, often comprised of fewer than 100 base pairs out of the billions that once made up the full sequence of the organism.

However, the 52,000-year-old skin sample at the heart of this research was taken from behind the ear of a mammoth discovered in Northern Siberia in 2018. An intensive analysis of the sample revealed the presence of complete fossil chromosomes. These chromosomes, each measuring billionths of a meter in length, had seemingly been frozen in a glass-like state for tens of thousands of years. Knowing the shape of an organism’s chromosomes can help researchers to assemble entire DNA sequences of extinct creatures, a task previously deemed nearly impossible due to DNA degradation over time.

“This is a new type of fossil, and its scale dwarfs that of individual ancient DNA fragments — a million times more sequence,” explained Erez Lieberman Aiden, a corresponding author on the study and director of the Center for Genome Architecture at the Baylor College of Medicine.

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