Medicine (category filter × )

Air pollution linked to dementia and cardiovascular disease

news.ki.se
  • Researchers followed 3,000 adults (74 y-o average) for up to 11 years to study the link between air pollution and dementia.
  • Notably, the study took place in Stockholm, where the air pollution levels are generally lower compared to international standards.
  • The study showed that even low pollution can increase the risk of developing dementia in people who have pre-existing heart disease.
  • Nearly all association of air pollution with dementia seemed to be accompanied by cardiovascular disease.
  • These conclusions provide new insights into treating dementia, and show that decreasing air pollution is important.

“Living drug factories” might treat diabetes and other diseases

news.mit.edu
  • New medical device might make it possible to transport healing cells into your body without alarming your immune system—so far it’s only been tested in mice.
  • It comes as an alternative to islet cell transplant, a treatment for diabetes that is hard to apply because the patient’s immune system often rejects it.
  • When put into diabetic mice, the device remained viable for five months, with the cells constantly producing the drugs that the mice needed.
  • The device is built from a silicon-based, flexible polymer with a membrane that lets oxygen and nutrients into the device, and it’s coated with a drug called THPT.
  • This is an important step for biocompatible treatments, however there was no information about when it would be tested in humans.

Scientists discover powerful antibiotic using AI

bbc.com
  • In what MIT researchers call a first-of-its-kind discovery, a neural network AI algorithm helped scientists find a new type of drug.
  • It’s halicin, and it’s suspected to be one of the most powerful antibiotics discovered to date.
  • The algorithm analysed 6,000 chemical compounds, and isolated one special molecule.
  • Just a few weeks ago, a different drug molecule, also discovered by AI, became the first to be used in human trials.
  • This study is important because it adds proof that AI can be very helpful in discovering new substances, and it’s a big step in the battle against drug resistance.

Could your visual cortex be responsible for migraines?

sciencefocus.com
  • Experiment with 60 volunteers (half with a migraine problem) shows that migraine sufferers have a hyper-excitable visual cortex.
  • The vision anomalies we experience before migraines might indicate that migraines are caused by differences in how our brains process visuals.
  • But it’s not clear, as some participants also reported visual anomalies, but didn’t suffer from migraines.
  • This study is the first to prove a connection between vision cortex anomalies and migraines.
  • It brings scientists one step closer to understanding the cause of migraines, which is still unknown.

Even 15,000 steps a day won’t help you lose weight, but it will make you healthier

news.byu.edu
  • Step-counting experiment tracked caloric intake and weight of 120 participants throughout 24 weeks of walking different amounts of steps a day for 6 days per week
  • Participants gained 1.5 kg (3.5 lbs) on average during the experiment, even those who walked 15,000 steps a day
  • While their weight wasn’t affected, they did notice positive changes in their physical activities, and reduced sedentary time.
  • Overall, the more steps we walk, the better.
  • Step-a-day goals are great to get up and get moving, but if you need to lose weight, you must do other things as well.

Newsletter

Newsletter

Categories

  • Science Science (63) Effectiveness of Surgical and Cotton Masks in Blocking SARS–CoV-2: A Controlled Comparison in 4 Patients
  • Psychology Psychology (67) The Desire for Information: Blissful Ignorance or Painful Truth?
  • Cosmos Cosmos (30) Huge explosion, second only to the Big Bang, discovered 390 million light years from Earth
  • History History (16) Three human-like species lived side-by-side in ancient Africa
  • Society Society (69) AI can’t predict how a child’s life will turn out even with a ton of data
  • Medicine Medicine (67) Air pollution linked to dementia and cardiovascular disease
  • Technology Technology (73) First-principles calculations shed light on semiconductor defects
  • Nature Nature (49) If the planet keeps on heating, more people will suffer from heat stress