Hacker News
- Decades of air pollution undermine the immune system https://www.cuimc.columbia.edu/news/decades-air-pollution-undermine-immune-system 141 comments
- Missing link between Alzheimer’s and vascular disease found? https://www.cuimc.columbia.edu/news/missing-link-between-alzheimers-and-vascular-disease-found 56 comments
- New type of ultraviolet light makes indoor air as safe as outdoors https://www.cuimc.columbia.edu/news/new-type-ultraviolet-light-makes-indoor-air-safe-outdoors 133 comments
- Stress does turn hair gray, and it’s reversible https://www.cuimc.columbia.edu/news/its-true-stress-does-turn-hair-gray-and-its-reversible 132 comments
- Women born in the most sexist U.S. states experience faster memory decline in later years (over 65) compared to those in the least sexist states, and this difference in memory decline can equate to nine years of cognitive aging https://www.cuimc.columbia.edu/news/sexism-risk-factor-memory-decline-among-women 119 comments science
- Study in animals suggests that targeting antidepressant medications to cells in the gut could not only be an effective treatment of mood disorders like depression and anxiety but may also cause fewer cognitive, gastrointestinal, and behavioral side effects for patients https://www.cuimc.columbia.edu/news/antidepressants-may-act-gut-reduce-depression-and-anxiety 13 comments science
- Hacking Bacteria to Attack Cancer https://www.cuimc.columbia.edu/news/hacking-bacteria-attack-cancer 7 comments science
- Pandemic-era babies do not have higher autism risk, finds study. Children born during the pandemic, including those exposed to COVID in utero, were no more likely to screen positive for autism than unexposed or pre-pandemic children. https://www.cuimc.columbia.edu/news/pandemic-era-babies-do-not-have-higher-autism-risk-finds-study 40 comments science
- Mitochondria Are Flinging Their DNA into Our Brain Cells https://www.cuimc.columbia.edu/news/mitochondria-are-flinging-their-dna-our-brain-cells 8 comments science
- Scientists have created mice with hybrid brains—part mouse, part rat—that sense the odors of the world with their rat neurons. It is the first time that an animal has been able to use the sensory apparatus of another species to sense and respond accurately to the world. https://www.cuimc.columbia.edu/news/hybrid-brains-these-mice-smell-rat 2 comments science
- Researchers discover a genetic variant that reduces odds of developing Alzheimer’s disease by up to 70% and may be protecting thousands of people in the US. It appears to allow toxic forms of amyloid out of the brain through the blood-brain barrier, and heralds a new direction in drug development. https://www.cuimc.columbia.edu/news/newly-found-genetic-variant-defends-against-alzheimers-disease 3 comments upliftingnews
- Researchers discover a genetic variant that reduces odds of developing Alzheimer’s disease by up to 70% and may be protecting thousands of people in the US. It appears to allow toxic forms of amyloid out of the brain through the blood-brain barrier, and heralds a new direction in drug development. https://www.cuimc.columbia.edu/news/newly-found-genetic-variant-defends-against-alzheimers-disease 81 comments science
- Discrimination During Pregnancy May Alter Circuits in Infants’ Brains. Scientists found infants of mothers who experienced discrimination generally had weaker connections between their amygdala and prefrontal cortex https://www.cuimc.columbia.edu/news/discrimination-during-pregnancy-may-alter-circuits-infants-brains 79 comments science
- Researchers found that neurogenesis (the process of generating new brain cells) also in adults, is critical for maintaining brain circuits that support working memory across the lifespan, and chronic loss of adult neurogenesis causes progressive memory loss like Alzheimer’s https://www.cuimc.columbia.edu/news/baby-neurons-adult-brains-are-needed-maintain-memory 7 comments science
- Research conducted in human cells and in mice, found that warfarin (a common blood thinner) can double as a anticancer: it stops tumors from interfering with a self-destruct mechanism that cells initiate when they detect mutations or other abnormalities https://www.cuimc.columbia.edu/news/common-blood-thinner-may-double-cancer-therapy 20 comments science
- Source of hidden consciousness in 'comatose' brain injury patients found. Study suggests patients with hidden consciousness can hear and comprehend verbal commands, but they cannot carry out those commands because of injuries in brain circuits that relay instructions from the brain to the muscles https://www.cuimc.columbia.edu/news/source-hidden-consciousness-comatose-brain-injury-patients-found 71 comments science
- Passegué, with her graduate student Carl Mitchell, found that an anti-inflammatory drug, already approved for use in rheumatoid arthritis, can turn back time in mice and reverse some of the effects of age on the hematopoietic system. https://www.cuimc.columbia.edu/news/will-revitalizing-old-blood-slow-aging 3 comments science
- Rejuvenating an older person’s blood may now be within reach, based on recent findings from Passegué’s lab published in Nature Cell Biology. https://www.cuimc.columbia.edu/news/will-revitalizing-old-blood-slow-aging 7 comments science
- Decades of Air Pollution Undermine the Immune System https://www.cuimc.columbia.edu/news/decades-air-pollution-undermine-immune-system 51 comments science
- Researchers reveal the surprising reasons why cancer cells are often forced to rely on fat imports: fat molecules are used to create membranes of new cells. A finding that could lead to new ways to understand and slow down tumor growth https://www.cuimc.columbia.edu/news/study-shows-why-many-cancer-cells-need-import-fat 41 comments science
- A new type of ultraviolet light that is safe for people took less than five minutes to reduce the level of indoor airborne microbes by more than 98%. https://www.cuimc.columbia.edu/news/new-type-ultraviolet-light-makes-indoor-air-safe-outdoors 1670 comments science
- Study Reveals Toll of Poor Sleep Among Health Care Workers. Health care workers with poor sleep were twice as likely to report symptoms of depression than their better-rested colleagues and were 50% more likely to report psychological distress and 70% more likely to report anxiety. https://www.cuimc.columbia.edu/news/sick-and-tired-study-reveals-toll-poor-sleep-among-health-care-workers 9 comments science
- Ancient part of immune system may underpin severe COVID: One of the immune system’s oldest branches, called complement, may be influencing the severity of COVID disease, according to a new study https://www.cuimc.columbia.edu/news/ancient-part-immune-system-may-underpin-severe-covid 7 comments science
- Researchers study why memories attached to emotions are so strong: Multiple neurons in the brain must fire in synchrony to create strong "emotional" memories, study in mice finds https://www.cuimc.columbia.edu/news/why-are-memories-attached-emotions-so-strong 6 comments science
- Far-UVC light safely kills airborne Coronaviruses. More than 99.9% of seasonal coronaviruses present in airborne droplets were killed when exposed to a particular wavelength of ultraviolet light that is safe to use around humans. https://www.cuimc.columbia.edu/news/far-uvc-light-safely-kills-airborne-coronaviruses 1738 comments science
- A study of nearly 400 pregnant women in New York City is among the first to show that lower neighborhood socioeconomic status and greater household crowding increase the risk of becoming infected with SARS-CoV-2, the virus that causes COVID-19. https://www.cuimc.columbia.edu/news/crowded-homes-poor-neighborhoods-linked-covid-19 237 comments science
- Women who sleep poorly tend to overeat and consume a lower-quality diet. The findings provide new insight into how poor sleep quality can increase the risk of heart disease and obesity and points to possible interventions for improving women’s heart health. https://www.cuimc.columbia.edu/news/skinny-why-poor-sleep-may-increase-heart-disease-women 337 comments science
- Ex-Smokers, Light Smokers Not Exempt from Lung Damage. The impact of smoking on lung function lasts decades, upending an assumption that it only take a few years for the rate of lung function decline to return to normal after smokers quit. https://www.cuimc.columbia.edu/news/ex-smokers-light-smokers-not-exempt-lung-damage 190 comments science
- Bone, Not Adrenaline, Drives Fight or Flight Response https://www.cuimc.columbia.edu/news/bone-not-adrenaline-drives-fight-or-flight-response 20 comments science