Lifeboat Foundation

A titanium implant (blue) without a nanofiber coating in the femur of a mouse. Bacteria are shown in red and responding immune cells in yellow. Courtesy of Lloyd Miller/Johns Hopkins Medicine

In a proof-of-concept study with mice, scientists at The Johns Hopkins University show that a novel coating they made with antibiotic-releasing nanofibers has the potential to better prevent at least some serious bacterial infections related to total joint replacement surgery. A report on the study, published online the week of Oct. 24 in Proceedings of the National Academy of Sciences, was conducted on the rodents’ knee joints, but, the researchers say, the technology would have “broad applicability” in the use of orthopedic prostheses, such as hip and knee total joint replacements, as well pacemakers, stents and other implantable medical devices. In contrast to other coatings in development, the researchers report the new material can release multiple antibiotics in a strategically timed way for an optimal effect.

“We can potentially coat any metallic implant that we put into patients, from prosthetic joints, rods, screws and plates to pacemakers, implantable defibrillators and dental hardware,” says co-senior study author Lloyd S. Miller, MD, PhD, an associate professor of dermatology and orthopedic surgery at the Johns Hopkins University School of Medicine.

Continue reading “Nanofiber Coating Prevents Infections of Prosthetic Joints” »

Continue reading “10 companies that want to make chemotherapy easier for patients — Bioquark Inc.” »

Today I’m announcing a $100M commitment to Kernel in an effort to enhance human intelligence and reimagine our future. Unlocking our brain is the most significant and consequential opportunity in history — and it’s time sensitive.

We’re starting to identify the mechanisms underlying neural code and make them programmable. Our biology and genetics have become increasingly programmable; our neural code is next in line. Programming our neural code will enable us to author ourselves and our existence in ways that were previously unimaginable.

I started Kernel in 2016 (read more at the Washington Post) to build the world’s first neural prosthetic for human intelligence enhancement. The investment I’m making in Kernel today will expedite the development of this prosthetic and similarly transformative neurotechnologies.

Continue reading “Kernel’s Quest to Enhance Human Intelligence” »

About eight years ago, as the controversy about research involving human embryonic stem cells was winding down and Barack Obama was about to take office, I had one of my regular lunches with a respected conservative policy expert. We had come to be friends who respectfully disagreed about embryonic stem cell research and other bioethics issues.

That day I told him that there were still bigger issues brewing that involved human reproductive materials. For example, the opponents of research that involved destroying human embryos had celebrated a new technology developed in Japan that turned regular adult cells into something resembling potent embryonic cells. What many failed to notice is that that same technology could be used to turn adult cells into human egg cells. Thus in theory two men could produce a baby with the second man’s sperm and without a woman to provide an egg.

“Oh,” my friend said when I pointed this out to him, “I would definitely support federal legislation to prevent that.” I was struck at his vehemence, but not surprised.

Continue reading “The Coming Of The Motherless Child” »

Crystals are defined by their repeating, symmetrical patterns and long-range order. Unlike amorphous materials, in which atoms are randomly packed together, the atoms in a crystal are arranged in a predictable way. Quasicrystals are an exotic exception to this rule. First discovered in 1982, their atoms pack together in an orderly fashion, but in a mosaic-like pattern that doesn’t repeat and can’t be predicted from a small sample.

Being able to map out the position of individual atoms within a quasicrystal is a prerequisite for achieving a complete understanding of their structure and aids in designing them for specific applications, but conventional microscopy techniques don’t have the resolution to accomplish such a task.

In an effort to address this challenge, researchers from the University of Pennsylvania and the University of Michigan have engineered a quasicrystal that is formed by self-assembling nanoparticles, which are an order of magnitude larger than the atoms that comprise traditional quasicrystals. Their larger size enabled the team to use a suite of microscopy and simulation techniques to deduce, for the first time, the full three-dimensional configuration of a spontaneously formed quasicrystal.

Tissue engineering makes further progress for repairing damaged joints.

Writing in The Lancet, Swiss doctors report that cartilage cells harvested from patients’ own noses have been used to successfully produce cartilage transplants for the treatment of the knees of 10 adults (aged 18–55 years) whose cartilage was damaged by injury. Two years after reconstruction, most recipients reported improvements in pain, knee function, and quality of life, as well as developing repair tissue that is similar in composition to native cartilage.

Despite this promising start, however, the effectiveness of the procedure needs to be rigorously assessed in larger randomised trials compared to conventional treatments and with longer follow up before any firm conclusions can be drawn about its use in routine clinical practice, say the authors.

Continue reading “The Lancet: Swiss doctors report success of using cells from the nose to repair damaged knee joints 2 years post operation” »

Combination therapy to kick cancer to the curb!

Harnessing the body’s own immune system to destroy tumors is a tantalizing prospect that has yet to realize its full potential. However, a new advance from MIT may bring this strategy, known as cancer immunotherapy, closer to becoming reality.

In the new study, the researchers used a combination of four different therapies to activate both of the immune system’s two branches, producing a coordinated attack that led to the complete disappearance of large, aggressive tumors in mice.

Continue reading “Fighting cancer with the power of immunity” »

Gene therapy in a box could reduce costs and save lives.

Gene therapy — the process of genetically altering cells to treat disease — is a highly promising process being studied as a way to cure devastating conditions like genetic disorders, HIV, and even cancer.

But despite the great need for medical advances in these areas, gene therapy can only be performed at a handful of high-tech clinics around the world and require highly trained staff, meaning that it may never be accessible to the millions of people whose lives it could save.

Continue reading “Newly-developed ‘gene therapy in a box’ could save millions of lives” »

Craig Venter’s New Enterprise: You

Scientist who jump-started the Human Genome Project works to integrate ‘personalized and preventive care into the practice of medicine.’