194 Year Old Tortoise DNA Shows Lifestyle Diseases Accelerate Aging
A new analysis of Aldabra tortoise DNA shows what scientists have long argued; if humans don't smoke, drink alcohol, or get obese we age better.
A new analysis of Aldabra tortoise DNA shows what scientists have long argued; if humans don't smoke, drink alcohol, or get obese we age better.
Bees have the reputation of being incredibly organized and spending their days making sure our food ecosystem is functioning. Neither is accurate. Unless you are an almond farmer in California and rented bees that were delivered in giant trucks, they have no impact on your food, and they are also not working non-stop for the hive.Instead, they may be genetically wired to beg for food.Male bees -“drones” - actually cannot digest pollen, the most important source of protein for bees. To avoid starvation, they depend on worker bees feeding them a pre-processed paste that workers make from pollen. It's not a communist love-fest, though, drones instead must convince workers to provide the food. Over time, they evolved to be able to beg.
Bleeding hosts and stigmatizations are the best-known medieval miracles but less known ones, like a scorched cherry twig miraculously sprouting, a diseased swamp becoming fertile land, and healing the broken leg of an ox, are getting a new look.
The inexpensive medication pantoprazole prevents potentially serious stomach bleeding in critically ill patients and can save consumers and the government thousands of dollars. The results of a new study show that when prescribed in hospital for mechanically ventilated patients in the intensive care unit, where patients are on life support and at high risk of upper gastrointestinal bleeding due to ulcers, the benefits are dramatic. So are the resulting savings, at a time when governments are struggling to contain costs during times of rising public criticism.Image: Storyblocks
Adults with atrial fibrillation (AFib) who are not diabetic but are overweight and took the diabetes medication metformin after a rhythm-correction procedure had decreased risk of AFib episodes for a year. Weight loss would usually be a confounder, since lifestyle changes such as that are often a big help, but in the data sample the weight changes were low.
In the various 'Predator' films, the alien hunter can see across various spectra while enabling camouflage from our vision.That happens in nature. Octopuses, squids, and the scariest of them all, cuttlefish, in the cephalopod family have evolved the ablity to modify their skin to blend in with the environment. That is due to the presence of xanthommatin, a natural pigment with color-shifting capabilities.
The older you get, the more frail you become. The more frail you become, the greater the risk of falling, hospitalization, and shorter life expectancy.Doctors talk about physical activity to reduce frailty but less attention is paid to biology. A new paper suggests that the hypothalamic–pituitary–gonadal (HPG) axis, the body’s system of regulating production of the hormone testosterone, can impact frailty."Suggests" means this is only EXPLORATORY, not human science, but a relationship between
Actors, artists, and musicians are rightly worried about the impact of AI on their incomes but doctors and scientists welcome the help. They know typewriters didn't make literature worse than writing in longhand and "AI" - LLMs - likewise removes the 'how' of information access so thinkers can get to the 'why.'In modern government-controlled healthcare, doctors are more pressed for time per patient than ever. Often while relying on incomplete information. Electronic health records contain vast amounts of patient data but much of it remains difficult to interpret quickly, and that is even more challenging for patients with rare diseases or unusual symptoms.
When you picture a black hole, you probably picture in the center of a galaxy with matter swirling toward it. You're not wrong but that is why the exception proves the rule.A recent study detected a surprising tidal disruption event where a black hole outside the center of a galaxy is tearing apart a star. Even stranger and defiance of black hole lore, the delayed and powerful radio outbursts suggest previously unknown processes in how black holes eject material over time. Designated AT 2024tvd, it is to-date the fastest-evolving radio emission ever observed from a black-hole-driven stellar disruption.
The process by which the nervous system continuously receives and interprets the body’s physiological signals to keep vital functions running smoothly, a "sixth sense" called
interoception
that tells your brain when you need to breathe, when your blood pressure declines or when you have an infection, is getting some star power; a Nobel laureate neuroscientist.And an NIH grant.
In 1956, prize-winning puppeteer Shari Lewis appeared on the Captain Kangaroo children's show and debuted a new...well, it was basically a sock with eyes.(1) She called it Lamb Chop, though, and her ventriloquism was a big hit with kids.Imagine what she would think if she knew Lamb Chop toys were a big hit with dogs.It's a science mystery why, but dogs love them. Dogs who like to cuddle are obsessed with it, as are dogs who want to destroy things. They like the squeaks, the softs, and perhaps that it almost resembles an animal. Dogs get obsessive-compulsive a lot, according to a new paper.
Conventional genetic analysis methods for genotyping of brain tumors usually require one or two days to obtain results but a new method can determine optimal resection margins during surgery in just a few minutes.The ability to accurately detect genetic mutations in a brain tumor was demonstrated with isocitrate dehydrogenase (IDH) and telomerase reverse transcriptase (TERT) promoters, which are markers for diagnosis of diffuse glioma—the most common type of brain tumor. Their system uses a
Polymerase Chain Reaction device in combination with their own protocol and it enables DNA extraction using only heat incubation.
A recent study found the first evidence that sperm microRNAs act as carriers of epigenetic information, enabling the intergenerational transmission of paternal exercise capacity and metabolic health, thereby exerting profound effects on offspring development.The bad news if you want an excuse for your poor fitness is this is epigenetics and only in mice, which means it is only EXPLORATORY. Mice are not little people and epigenetics lacks the same biological foundation as actual evolution and genetics.