Menu

Blog

Archive for the ‘biotech/medical’ category: Page 524

Jun 27, 2023

Rapamycin is the gold standard for longevity interventions

Posted by in categories: biotech/medical, life extension

It sucks that the primary reason this has not gone forward is because it is off patent.


This video is reproduced from a presentation I gave to the Euro-Geroscience Task Force “Challenges in Developing Geroscience Drug Trials” held March 23, 2022 in Toulouse, France. It gives an introduction to the state of research on rapamycin as a potential longevity and healthspan drug and some of the challenges and opportunities for clinical development.

Jun 27, 2023

How a Gene Mutation Causes Higher Intelligence

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

Year 2022 😗😁


Summary: A rare genetic mutation that causes blindness also appears to be associated with above-average intelligence, a new study reports.

Source: University of Leipzig

Continue reading “How a Gene Mutation Causes Higher Intelligence” »

Jun 27, 2023

Andrew Steele: Curing aging is a question of investment, not time

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

The 2023 edition of the exclusive Longevity Investors Conference is fast approaching, bringing together investors, companies and researchers in Gstaad, Switzerland in September. One of the speakers at this year’s conference is scientist, writer and presenter Dr Andrew Steele, the author of the best-selling book Ageless: The new science of getting older without getting old. When it comes to his views on longevity, Steele sits firmly in the camp that aging, like cancer, is something that humanity should be focused on curing.

Longevity. Technology: Last year, Steele told us he was “absolutely convinced” curing aging is possible, but that significant questions remain around how quickly we can get there. As he prepares to speak to more than 100 investors at LIC, we caught up with Steele to see how his views on longevity have evolved, and what he would say to those considering investing in the field.

First and foremost, Steele, who recently published a new, free chapter of Ageless on the moral, ethical and social consequences of treating aging, believes that longevity represents a huge “human opportunity” for investors.

Jun 27, 2023

Electron tunneling associated with ferritin in vivo in the retina, the cochlea, macrophages and other tissues

Posted by in category: biotech/medical

Electron tunneling associated with ferritin was proposed as early as 1988, but it is still viewed skeptically despite substantial evidence that it occurs. In our recent paper published in IEEE Transactions on Molecular, Biological and Multi-Scale Communications, my co-authors and I review the evidence of electron tunneling in ferritin, as well as the evidence that such electron tunneling may be used by biological systems that include the retina, the cochlea, macrophages, glial cells, mitochondria and magnetosensory systems.

While these diverse systems fall in different fields of study, we hope that this article will raise awareness of the mechanism of electron tunneling associated with and encourage further research into that phenomenon in that incorporate ferritin, particularly where there is no apparent need for the iron storage functions of ferritin in those systems.

Ferritin is an iron storage protein that self-assembles into a 12-nanometer diameter spherical shell that is 2 nanometers thick, and it can store up to ~4,500 iron atoms in an 8-nanometer diameter core. With an evolutionary history that appears to stretch back more than 1.2 billion years, it might seem rather old, but it should be kept in mind that are believed to have first evolved ~3.5 billion years ago. As such, it may have taken more than 2 billion years for ferritin to evolve. When the first multicellular organisms evolved ~600 million years ago, members of the ferritin family of proteins were likely present, and they can be found today in almost all plants and animals.

Jun 27, 2023

“I’m really into planetary defence”: Meet the 13-year-old whose science project could protect Earth from asteroids

Posted by in categories: biotech/medical, physics, science, space

Do you ever mesh your other hobbies with the space stuff? Yes. I once turned the results of one of my experiments into a musical. In 2020, during the lockdowns, I put a scientific instrument on my balcony to measure light, sound and pollution before and after the pandemic. I ended up with several graphs and thought, Why not turn these into a musical? So, me and my brother got several musical instruments and played notes according to how high or low each point on the graph was. We actually submitted that to the NASA SpaceApps COVID-19 Challenge and became one of the top six global winners.

Do you think you’ll study space science at university when you’re older? I think so. Either aerospace or astrophysics, or maybe both.

Continue reading “‘I’m really into planetary defence’: Meet the 13-year-old whose science project could protect Earth from asteroids” »

Jun 27, 2023

First Gene Therapy to Treat Duchenne Muscular Dystrophy is Approved

Posted by in categories: biotech/medical, genetics

The first gene therapy that can treat Duchenne muscular dystrophy (DMD) has been approved by the U.S. Food and Drug Administration; it will be marketed as Elevidys (delandistrogene moxeparvovec-rokl) by Sarepta Therapeutics Inc. Children aged four to five with the disorder and confirmed gene mutations will be eligible to receive the one-time treatment if insurers approve, as the cost is $3.2 million per patient.

DMD is caused by mutations in a gene called dystrophin, which results in a serious lack of functional dystrophin protein. The gene therapy works by sending a gene that can produce a shortened version of the dystrophin protein to patients; the company has termed it Elevidys micro-dystrophin.

Jun 27, 2023

Researchers reveal mechanism of protection against breast and ovarian cancer

Posted by in category: biotech/medical

In a new paper published today in Nature, researchers at the Francis Crick Institute have outlined the structure and function of a protein complex that is required to repair damaged DNA and protect against cancer.

Every time a cell replicates, mistakes can happen in the form of , but specialized proteins exist to repair the damaged DNA.

People with mutations in a DNA repair called BRCA2 are predisposed to breast, ovarian and , which often develop at a young age. In the clinic, these cancers are treated with a drug that inhibits PARP, another protein needed for DNA repair.

Jun 27, 2023

Six Degrees of Connection: A Mathematical Take on Social Ties

Posted by in categories: biotech/medical, mathematics

Summary: Scientists used mathematics to explain the social phenomenon of six degrees of separation.

Their work suggests that the balance between the cost and benefit of maintaining social connections shapes the global human social network. According to their findings, individual efforts to optimize their social connections result in an average of six steps between any two people.

Continue reading “Six Degrees of Connection: A Mathematical Take on Social Ties” »

Jun 26, 2023

Clinical trial identifies potential new treatment for liver disease

Posted by in category: biotech/medical

Researchers at the University of California San Diego School of Medicine have led a study to examine a potential new treatment option for patients with non-alcoholic steatohepatitis (NASH)-related fibrosis.

The results, published in the June 24, 2023, online edition of The New England Journal of Medicine, found that a drug that mimics a hormone in the body improved both , or scarring of the , and liver inflammation in patients with NASH.

“Identifying an effective drug for NASH is extremely promising for patients as currently there are no FDA-approved therapies for this condition,” said Rohit Loomba, MD, the study’s first author and chief of the Division of Gastroenterology and Hepatology at UC San Diego School of Medicine. “NASH can adversely impact the quality of life in patients and can progress to . Its complications can lead to death or liver transplantation. Our findings will further the science of this disease and provide a potential new treatment option to those affected by NASH-related fibrosis.”

Jun 26, 2023

Warfarin use should not disqualify stroke patients from lifesaving clot-removing surgery, says study

Posted by in categories: biotech/medical, health, neuroscience

Most stroke patients taking the anticoagulant warfarin were no more likely than those not on the medication to experience a brain bleed when undergoing a procedure to remove a blood clot, UT Southwestern Medical Center researchers report in a new study. The findings, published in JAMA, could help doctors better gauge the risk of endovascular thrombectomy (EVT), potentially expanding the pool of eligible patients for this mainstay stroke treatment.

Warfarin is a type of blood thinner commonly used to prevent stroke because of heart conditions such as atrial fibrillation. Although not very common, patients taking may still experience a stroke. In , it’s very possible that some physicians may withhold an endovascular thrombectomy because patients have been treated with warfarin before their strokes.

Our study could increase the number of patients for whom this lifesaving and function-saving surgery would be appropriate, said study leader Ying Xian, M.D., Ph.D., Associate Professor of Neurology and in the Peter O’Donnell Jr. School of Public Health at UT Southwestern. Dr. Xian is also Section Head of Research, Stroke and Cerebrovascular Diseases in the Department of Neurology at UTSW.

Page 524 of 2,681First521522523524525526527528Last