DNA Mutation Time Bombs May Dictate When Animals Die
Animals carry “mutational clocks” in their cells that dictate how quickly their DNA picks up mutations. And across species, animals tend to die once they reach a certain number of mutations, according to new research.
It turns out that in long-lived mammals like humans, these mutational clocks run slower than in short-lived mammals like mice, which means that humans reach a threshold number of mutations at older than mice. This finding, the researchers say, could help solve a long-standing mystery in biology.
Antidepressants are the mainstay of treatment for depression, but their use is clouded by questions about their lasting effectiveness. A new study now suggests that antidepressants may not improve people’s quality of life in the long term, compared to depressed people who do not take this type of medication. This does not mean that we…
Summary: The study reveals a two-way link between daytime napping and cognitive decline associated with Alzheimer’s disease. The researchers say that longer and more frequent naps were associated with worse cognition after one year, and that worse cognition was linked to longer and more frequent naps during the day. Source: Rush University Medical Center Could…
Close up of mold growth.Jonathan Knowles/Getty Images Scientists have confirmed a link between drug-resistant fungi in the environment and in human lungs. Environmental molds can cause lung infections in people with vulnerable immune systems. Some molds have developed drug resistance from agricultural exposures, which makes fungal infections more difficult to treat. Researchers from Imperial College…
Share on PinterestNew research reveals a blood test that could predict most major cardiovascular disease outcomes. MaaHoo Studio/Stocksy Cardiovascular risk prediction is important for clinicians caring for patients and for scientists developing new drugs. Scientists can use biomarker surrogates as signs that the risk of cardiovascular disease (CVD) may be increasing or decreasing. In the…
After being at low levels for months, the prevalence of the coronavirus doubled this week at the two wastewater treatment plants in the Portland Water district. Levels, measured in copies of coronavirus per liter of sewage, were around 1 million at the East End plant on Friday and 1.3 million at the Westbrook plant. That’s…
Not now, bird flu! China confirms first human case of H3N8 strain A four-year-old boy from Henan province is the first confirmed case of H3N8 The child had been in contact with chickens and crows raised at his home But no close contacts have been infected and officials say the risk to the public is…
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
Cookie
Duration
Description
cookielawinfo-checkbox-analytics
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional
11 months
The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance
11 months
This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy
11 months
The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.