Pigs with human kidneys? Brain-powered computer chips? Science is creating new kinds of living things – and our moral understanding needs to catch up fast.
Scientists discover a biomarker in stroke survivors, suggesting that chemical changes after stroke can lead to depression. The findings may pave the way toward treatment.
Summary: New research delves into the distinctive human trait of sequential memory, setting us apart from bonobos. A recent study has also highlighted the joy in chasing passions over accomplishments. Groundbreaking discoveries show the human brain’s computational prowess, mirroring high-powered computers.
Additionally, the footprint of Big Tobacco is evident in the modern American diet through the promotion of hyperpalatable foods. Lastly, understanding the range of mind’s visualization abilities, from hyperphantasia to aphantasia, opens avenues for innovative treatments.
With the demise of Roche’s gantenerumab in November 2022, the Alzheimer’s disease space became a two-horse race between Eisai and Biogen’s Leqembi (lecanemab) and Eli Lilly’s donanemab. One, Leqembi, received full FDA approval in July; the other, donanemab, is widely expected to secure the agency’s approval before the end of 2023.
With a potential combined market value of $30 billion, BioSpace takes a deep dive into the Phase III data supporting Eisai and Biogen’s Leqembi and Eli Lilly’s investigational donanemab.
Summary: Researchers pioneered a groundbreaking method called “CHOOSE” to investigate genes tied to autism spectrum disorder (ASD) within human tissue. This technique allows for simultaneous examination of key transcriptional regulator genes linked to autism in a single organoid.
Utilizing CHOOSE, the team pinpointed mutations in 36 genes known to heighten autism risk, shedding light on how they influence brain development. The revelations from these organoids mirrored clinical observations, underscoring the potential of this method in advancing our understanding of neurodevelopmental disorders.
Apple’s new “State of Mind” feature in the Health app is more than a tech update; it’s Apple’s foray into helping us understand our emotions. Beyond tracking physical activity with the Apple Watch, the company is now capturing our moods. This, combined with insights from a new Journal app (which Apple says will be woven into our life’s events and multimedia tapestry), aims to give a full picture of our daily experiences, both in body and mind.
Here’s how Apple envisions this feature will play out in real life.
Imagine a vacation in an unfamiliar city. At the start of your day, the Health app prompts you to record your mood. You describe it as “Very Pleasant” and indicate to the app that… More.
Continue reading “The Science Behind Apple’s ‘State Of Mind’ Feature, Explained By A Psychologist” »
Crispr used in mice to reverse vision loss 😀.
Qin and colleagues develop a genome-editing tool characterized by the versatility of prime editors and unconstrained PAM requirement of SpRY. In vivo gene corre.
Year 2020 Immortality in eyes achieved with Nad plus 😗😁😘.
Glaucoma and age-related macular degeneration are leading causes of irreversible blindness worldwide with significant health and societal burdens. To date, no clinical cures are available and treatments target only the manageable symptoms and risk factors (but do not remediate the underlying pathology of the disease). Both diseases are neurodegenerative in their pathology of the retina and as such many of the events that trigger cell dysfunction, degeneration, and eventual loss are due to mitochondrial dysfunction, inflammation, and oxidative stress. Here, we critically review how a decreased bioavailability of nicotinamide adenine dinucleotide (NAD; a crucial metabolite in healthy and disease states) may underpin many of these aberrant mechanisms. We propose how exogenous sources of NAD may become a therapeutic standard for the treatment of these conditions.
Summary: A recent study illuminates the brain’s unique response to stress: releasing its own cannabinoid molecules akin to THC from cannabis plants.
Centered in the amygdala, these molecules counteract stress alarms originating from the hippocampus, an integral memory and emotion region. This hints at the body’s intrinsic mechanism for stress management.
Disruption in this system might escalate risks for stress-induced psychiatric conditions.
Malaria is one of the most widespread and devastating infectious diseases across the globe. This mosquito-borne parasitic disease killed approximately 619,000 people in 2021 alone, many of them children in Africa. In one of the deadliest forms of malaria, known as cerebral malaria, the patient experiences severe neurological symptoms, such as seizures and coma. Although only a small fraction of people who fall ill with malaria also experience cerebral malaria, the condition is lethal without treatment. Among hospitalized patients with the condition, death rates range between 15 and 20%. In a new paper, recently published in Science Translational Medicine, researchers from the National Institute of Allergy and Infectious Diseases (NIAID), part of the NIH, and their colleagues studied children with cerebral malaria in Malawi to better understand the underlying causes of these devastating symptoms in the hope of developing improved treatments.
Researchers know that the symptoms of cerebral malaria are caused when the brain swells within the confines of the skull, eventually impinging upon the brainstem, which causes breathing to stop. However, researchers have been unsure how malaria infection leads to brain swelling. Some researchers hypothesized that the main cause was a weakening of the blood-brain barrier, which would allow fluid to seep into the brain and cause it to swell. Others speculated that the primary driver behind the swelling was inside the blood vessels themselves. Red blood cells infected with P. falciparum, the parasite which causes malaria, can become “sticky,” adhering to the walls of blood vessels. Partial blockages inside the cerebral veins could slow the flow of blood leaving the brain, causing the blood vessels themselves to become engorged and expand the brain from within.
To distinguish between these two hypotheses, NIAID researchers and their collaborators used non-invasive imaging techniques to study the flow of blood within the brains of 46 children who had been hospitalized for cerebral malaria at the Pediatric Research Ward of Queen Elizabeth Central Hospital in Blantyre, Malawi. As a comparison, they also studied 33 children with uncomplicated malaria and 26 healthy children from the local region. By using a light-based external monitoring tool (called near-infrared spectroscopy, or NIRS) the researchers were able to measure the amount of hemoglobin in the children’s brains. They reasoned that if excess fluid was the cause of brain swelling, then the hemoglobin concentration would be low, due to dilution. Alternatively, if the blood vessels were engorged with blood, then the hemoglobin concentration would be high.
