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ScienceDaily: Top News |
| How plants respond to heat stress Posted: 04 Jan 2022 09:06 AM PST Plants, like other organisms, can be severely affected by heat stress. To increase their chances of survival, they activate the heat shock response, a molecular pathway also employed by human and animal cells for stress protection. Researchers have now discovered that plant steroid hormones can promote this response in plants. |
| Resolving the black hole ‘fuzzball or wormhole’ debate Posted: 04 Jan 2022 08:22 AM PST Black holes really are giant fuzzballs, a new study says. The study attempts to put to rest the debate over Stephen Hawking's famous information paradox, the problem created by Hawking's conclusion that any data that enters a black hole can never leave. This conclusion accorded with the laws of thermodynamics, but opposed the fundamental laws of quantum mechanics. |
| New route for regulating blood sugar levels independent of insulin Posted: 04 Jan 2022 08:22 AM PST The discovery of insulin 100 years ago opened a door that would lead to life and hope for millions of people with diabetes. Ever since then, insulin, produced in the pancreas, has been considered the primary means of treating conditions characterized by high blood sugar (glucose), such as diabetes. Now, scientists have discovered a second molecule, produced in fat tissue, that, like insulin, also potently and rapidly regulates blood glucose. Their finding could lead to the development of new therapies for treating diabetes, and also lays the foundation for promising new avenues in metabolism research. |
| First time genome editing made possible on cells lining blood vessel walls Posted: 04 Jan 2022 08:22 AM PST Researchers have developed a unique nanoparticle to deliver genome editing technology, including CRISPR/Cas9, to endothelial cells, which are cells that line blood vessel walls. This is the first time that vascular endothelial cells could be reached for genome editing, since the usual way to deliver CRISPR/Cas9 -- through a virus -- does not work for this cell type. |
| Solving the disappearance of bears and lions with ancient DNA Posted: 04 Jan 2022 07:26 AM PST Researchers suggest a change in climate is the likely cause of the mysterious disappearance of ancient lions and bears from parts of North America for a thousand years or more prior to the last Ice Age. |
| Revitalizing batteries by bringing 'dead' lithium back to life Posted: 04 Jan 2022 06:56 AM PST Scientists brought islands of "dead" lithium back to life by making them creep worms to reconnect with their electrodes in next-gen lithium metal batteries. This extended battery life by nearly 30%. |
| Posted: 04 Jan 2022 06:56 AM PST Scientists are calling for changes to healthcare policy following research which has shown for the first time the scale of the impact of a condition associated with benign tumors that can lead to type 2 diabetes and high blood pressure. Up to 10 per cent of adults have a benign tumor, or lump, known as an 'adrenal incidentaloma' in their adrenals -- glands situated on top of the kidneys which produce a variety of hormones. |
| New light shed on potentially damaging effects of standard heart attack treatment Posted: 04 Jan 2022 06:56 AM PST A new study is challenging standard treatment methods used to prevent muscle damage during heart attack. |
| Climate change, invasive species drive native trout declines Posted: 04 Jan 2022 06:56 AM PST Researchers have found that climate change drives native trout declines by reducing stream habitat and facilitating the expansion of invasive trout species. |
| Inverted order: The direction of your DNA may be as important as which parent it came from Posted: 04 Jan 2022 06:55 AM PST Researchers generated mice with a specific DNA sequence inverted to determine if orientation affects expression of a gene called H19. Expression can also be impacted if the surrounding DNA is altered by a process called methylation. Interestingly, methylation was only relevant when the inverted sequence was inherited from the father. When inherited from the mother, the inversion had the opposite effect on H19 expression, suggesting a more complex mechanism is at play. |
| Gene involved in sense of smell could play a role in the spread of breast cancer to the brain Posted: 03 Jan 2022 11:54 AM PST An olfactory receptor typically associated with the sense of smell may also trigger breast cancer cells to metastasize through a signaling pathway to the brain, bones and lung. Future research could potentially lead to an inhibitor of OR5B21 to prevent cellular invasion and metastasis, thus prolonging the lives of breast cancer patients. |
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