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Archive for the ‘biotech/medical’ category: Page 541

Jul 26, 2023

Time’s arrow

Posted by in categories: biotech/medical, life extension

Imagine you could take a medicine that prevents the decline that come with age and keeps you healthy. Scientists are trying to find a drug that has these effects. The current most promising anti-ageing drug is Rapamycin, known for its positive effects on life and health span in experimental studies with laboratory animals. To obtain the maximum beneficial effects of the drug, it is often given lifelong. However, even at the low doses used in prevention for age-related decline, negative side effects may occur, and it is always desirable to use the lowest effective dose. A research group at the Max Planck Institute for Biology of Ageing in Cologne, Germany, has now shown in laboratory animals that brief exposure to rapamycin has the same positive effects as lifelong treatment opening new doors for a potential application in humans.

Combatting the negative effects of ageing is increasingly becoming the focus of research scientists. Lifestyle changes can improve health of older people, but alone is not sufficient to prevent the ills of older age. Repurposing existing drugs for ‘geroprotection’ is providing an additional weapon in the prevention of age-related decline. The current most promising anti-ageing drug is rapamycin, a cell growth inhibitor and immunosuppressant that is normally used in cancer therapy and after organ transplantations. “At the doses used clinically, rapamycin can have undesirable side-effects, but for the use of the drug in the prevention of age-related decline, these need to be absent or minimal. Therefore, we wanted to find out when and how long we need to give rapamycin in order to achieve the same effects as lifelong treatment”, explains Dr. Paula Juricic, the leading investigator of the study in the department of Prof.

Jul 26, 2023

Longevity factor klotho enhances cognition in aged nonhuman primates

Posted by in categories: biotech/medical, life extension, neuroscience

Cognitive dysfunction in aging is a major biomedical challenge. Whether treatment with klotho, a longevity factor, could enhance cognition in human-relevant models such as in nonhuman primates is unknown and represents a major knowledge gap in the path to therapeutics. We validated the rhesus form of the klotho protein in mice showing it increased synaptic plasticity and cognition. We then found that a single administration of low-dose, but not high-dose, klotho enhanced memory in aged nonhuman primates. Systemic low-dose klotho treatment may prove therapeutic in aging humans.

Jul 26, 2023

One in five people who contract the COVID-19 virus don’t get sick. A gene variant may explain why

Posted by in category: biotech/medical

In people with the variant, past exposure to other coronaviruses may prep the immune system to fight off the disease.

Jul 26, 2023

Daily statin reduces heart disease risk among adults living with HIV

Posted by in category: biotech/medical

NIH-funded clinical trial finds cholesterol-lowering treatment reduced cardiovascular events by 35%.

A National Institute of Health-supported study found that statins, a class of cholesterol-lowering medications, may offset the high risk of cardiovascular disease in people living with HIV by more than a third, potentially preventing one in five major cardiovascular events or premature deaths in this population. People living with HIV can have a 50–100% increased risk for cardiovascular disease. The findings are published in the New England Journal of Medicine.

Jul 25, 2023

AI Unlocks Olive Oil’s Potential in Alzheimer’s Battle

Posted by in categories: biotech/medical, chemistry, robotics/AI

This is a good use of AI. Definitely regular it but I can see it’s contributing to medical research.


Summary: Researchers have utilized artificial intelligence to uncover the promising potential of extra virgin olive oil (EVOO) in combating Alzheimer’s disease (AD).

By integrating AI, chemistry, and omics research, the study identified specific bioactive compounds in EVOO that could contribute to the treatment and prevention of AD. Ten phytochemicals within EVOO, such as quercetin, genistein, luteolin, and kaempferol, were found to exhibit potential impacts on AD protein networks.

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Jul 25, 2023

What Happens When Scientists Put a Human Intelligence Gene Into a Monkey?

Posted by in categories: biotech/medical, evolution, genetics, neuroscience

Scientists adding a human intelligence gene into monkeys — it’s the kind of thing you’d see in a movie like Rise of the Planet of the Apes. But Chinese researchers have done just that, improving the short-term memories of the monkeys in a study published in March 2019 in the Chinese journal National Science Review. While some experts downplayed the effects as minor, concerns linger over where the research may lead.

The goal of the work, led by geneticist Bing Su of Kunming Institute of Zoology, was to investigate how a gene linked to brain size, MCPH1, might contribute to the evolution of the organ in humans. All primates have some variation of this gene. However, compared with other primates, our brains are larger, more advanced and slower to develop; the researchers wondered whether differences that evolved in the human version of MCPH1 might explain our more complex brains.

Article from 2019

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Jul 25, 2023

This Week’s Awesome Tech Stories From Around the Web (Through July 22)

Posted by in categories: biotech/medical, internet, robotics/AI

From a Google AI that writes news articles to a robotic liver transplant, check out this week’s awesome tech stories from around the web.

Jul 25, 2023

Researchers build a DNA structure and coat it with glass, creating a very low density, very strong material

Posted by in categories: biotech/medical, materials

Materials that are both strong and lightweight could improve everything from cars to body armor. But usually, the two qualities are mutually exclusive. Now, University of Connecticut researchers and colleagues have developed an extraordinarily strong, lightweight material using two unlikely building blocks: DNA and glass.

“For the given density, our material is the strongest known,” says Seok-Woo Lee, a materials scientist at UConn. Lee and colleagues from UConn, Columbia University, and Brookhaven National Lab reported the details on July 19 in Cell Reports Physical Science.

Strength is relative. Iron, for example, can take seven tons of pressure per square centimeter. But it’s also very dense and heavy, weighing 7.8 grams/cubic centimeter. Other metals, such as titanium, are stronger and lighter than iron. And certain alloys combining multiple elements are even stronger. Strong, lightweight materials have allowed for lightweight body armor, better medical devices and made safer, faster cars and airplanes.

Jul 25, 2023

Proteins Protect Heart Cells from Chemotherapy Damage

Posted by in category: biotech/medical

“We really didn’t know which way it would go,” he said.

To find out, the researchers generated versions of the enzymes that would specifically move into the nucleus and bypass the mitochondria. They discovered that this relocation fortified the cells, keeping them alive. They demonstrated that this process worked in both heart cells generated from human stem cells and in mice exposed to chemotherapy.

“This seems to be a new mechanism by which heart cells can defend themselves against chemotherapy damage,” noted Rehman, who is also a member of the University of Illinois Cancer Center.

Jul 25, 2023

A Signal Hidden in Your Blood Predicts Dementia Risk Decades in Advance

Posted by in categories: biotech/medical, life extension, neuroscience

The earlier that Alzheimer’s disease and other similar conditions can be spotted, the better the treatment options are, and scientists have discovered a blood biomarker that could signal the risk of dementia many years in advance.

A team from the National Institute on Aging, the University of Texas, and the Johns Hopkins Bloomberg School of Public Health in the US, as well as other institutions across the world, looked at data on 10,981 individuals collected across the course of 25 years.

In particular, the researchers analyzed the proteome of these individuals: the complete set of proteins expressed in a body, driving all kinds of biological processes from cell communication to hormone levels.

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