Science Reverses Aging in Mouse
A frail mouse with failing organs was restored to vibrant youth when researchers re-activated production of the enzyme telomerase. Discovery News on the recently reported findings.
Researcher Ronald DePinho, director of the Belfer Institute of the Dana-Farber Cancer Institute, and colleagues at Harvard Medical School engineered mice that did not produce the enzyme telomerase, a chemical which protects the ends of DNA strands from being lost during replication. In an earlier study, these mice died after only six months, compared to the three-year life span of a normal mouse. But in DePinho's recent study, a chemical fountain of youth was given to the mice when they received special form of estrogen. The mice were engineered to produce telomerase only when this special estrogen was present.
Delay, deny and deflect were the strategies Facebook has used to navigate scandals it's faced in recent years, according to the New York Times.
- The exhaustive report is based on interviews with more than 50 people with ties to the company.
- It outlines how senior executives misled the public and lawmakers in regards to what it had discovered about privacy breaches and Russian interference in U.S. politics.
- On Thursday, Facebook cut ties with one of the companies, Definers Public Relations, listed in the report.
Protected animals are feared to be headed for the black market.
Dogs' floppy ears may be part of why they and other domesticated animals love humans so much.
- Nearly all domestic animals share several key traits in addition to friendliness to humans, traits such as floppy ears, a spotted coat, a shorter snout, and so on.
- Researchers have been puzzled as to why these traits keep showing up in disparate species, even when they aren't being bred for those qualities. This is known as "domestication syndrome."
- Now, researchers are pointing to a group of a cells called neural crest cells as the key to understanding domestication syndrome.
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