MIT researchers have found new ways to cure headaches in manufacturing carbon nanotube processors, which are faster and less power hungry than silicon chips.
Category: biotech/medical – Page 2,997
End of fillings in sight as scientists grow tooth enamel and repair damage
The end of fillings could be on the horizon after scientists found a way to successfully grow back tooth enamel. Although many laboratories have attempted to recreate the outer protective layer of teeth, the complex structure of overlapping microscopic rods has proved elusive.
Tooth enamel is the hardest tissue in the human body but it cannot repair itself when damaged, leaving people exposed to cavities and eventually needing fillings or a tooth extraction.
Experimental drug may ease opioid withdrawal symptoms
Opioid withdrawal is a challenging experience, and although there are medications already on the market that can help curb the symptoms of withdrawal, these drugs cause negative side effects.
Current withdrawal medications also often require people to take them for a prolonged period, which is not ideal and could lead to a relapse.
There may be encouraging news on the horizon, however. New research highlights the possible benefits of an experimental drug called rapastinel, which scientists initially created to help those with major depressive disorder.
WATCH: This two-minute synthetic biology video is a far-out vision of the future
Most of my professional life is centered on synthetic biology, an industry and movement to make biology easier to engineer. So far, this emerging discipline has yielded everything from living medicines and spider silk jackets to impossible hamburgers. But what will humankind be growing in the next century?
Rejuvenation biotechnology: Will “age” soon cease to mean “aging”?
Around the world, people are living longer — not just because child mortality is dropping, but also because we’re staying healthy for more years as we age. In the future, regenerative medicine and other new developments may help most people remain youthful much longer than they do today. In this talk, Aubrey de Grey, Chief Science Officer at the SENS Research Foundation, discusses the biology and sociology of what could be a massive shift in the way we live.
To learn more about effective altruism, visit effectivealtruism.org
This talk was filmed at EA Global 2019: San Francisco. You can learn more about these conferences at eaglobal.org
Removing Dysfunctional Microglia Prevents Amyloid-β Plaques
The macrophages resident in the brain and spinal cord appear to be a key element in the progression of Alzheimer’s disease, according to the results of a new mouse study.
Microglial mayhem
As we age, our immune cells become increasingly dysfunctional; once-helpful cells can behave in harmful ways, promoting persistent inflammation, impairing tissue regeneration, and possibly also facilitating the progression of age-related diseases.
Common Protein Fights Alzheimer’s Disease
In a recent study, a team of researchers has discovered that a naturally occurring protein called Lipocalin-type prostaglandin D synthase (L-PGDS) prevents, and can destroy, the protein aggregates associated with Alzheimer’s disease.
Surprisingly common and with critical functions
L-PGDS is a common protein, second only to albumin, in the human brain. It provides several critical functions, including regulation of processes and protection against further damage from ischemic strokes. It has been shown to be a molecular chaperone, preventing amyloid beta from forming the deadly aggregates associated with Alzheimer’s, and, perhaps most importantly, it has been shown to destroy aggregates that already exist. Not surprisingly, people who suffer from Alzheimer’s disease lack adequate amounts of this critical protein.
CRISPR Nanogel Pill Could Be the Answer to Stop Triple-Negative Breast Cancer
The answer to halting triple-negative breast cancer, the deadliest of all breast cancers, may have just been discovered by researchers from Boston Children’s Hospital.
A CRISPR gene-editing system — all encompassed into a nanogel capsule, that is then injected into the affected person’s body — is the potential antidote to stopping the growth of triple-negative breast cancer tumors.
RELATED: FIRST CRISPR USE INSIDE THE BODY WILL HELP TREAT BLINDNESS IN CHILDREN AND ADULTS
Scientists See Human-Like Brain Waves in Lab-Grown Mini-Brains
One way that scientists can non-invasively study the human brain is by growing “mini-brains,” clusters of brain cells each about the size of a pea, in the lab. In a fascinating progression of this line of research, a team this week reports that they observed human-like brainwaves from these organoids.
Previous studies of mini-brains have demonstrated movement and nerve tract development, but the new study from researchers at the University of California San Diego, led by biologist Alysson Muotri, is the first to record human-like neural activity. In their paper, published in Cell Stem Cell on Thursday, the researchers write that they observed brain wave patterns resembling those of a developing human. This sophistication in the in vitro model is a step to enable scientists to use mini-brains to study brain development, model diseases, and learn about the evolution of brains, according to Muotri.