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Category: biotech/medical – Page 2,624

Russian scientists 3D printing biological tissues with magnets in microgravity

3D bioprinting is a process for patterning and assembling complex functional living architectures in a gradient fashion. Generally, 3D bioprinting utilizes the layer-by-layer method to deposit materials known as bioinks to create tissue-like structures. Several 3D bioprinting techniques have been developed over the last decade, for example, magnetic bioprinting, a method that employs biocompatible magnetic nanoparticles to print cells into 3D structures.

But now a Russian research team has developed a new method of bioprinting that allows to create 3D biological objects without the use of layer-by-layer approach and magnetic labels. The new method, which involves magnetic levitation research in conditions of microgravity, was conducted by the 3D Bioprinting Solutions company in collaboration with other Russian and foreign scientists, including the Joint Institute for High Temperatures of the Russian Academy of Sciences (JIHT RAS).

Neurotoxins and Sleep: What You Need to Know

Living in a culture dependant upon caffeine and lack of sleep, its important to remember that sleep offers an incredibly important biological function. One night of sleep deprivation is tied to Alzheimer’s disease.

While people once believed that sleep was merely a period of inactivity and rest, modern studies in chronobiology have shown that sleep is important for a variety of biochemical processes. A recent study suggests that sleep is even more important than physicians and scientists previously thought, allowing the brain to flush out toxic chemicals that build up over the course of a day.

Neurotoxins and Your Brain

The cells in your brain are busy throughout the day, performing a variety of reactions that create mental function. Unfortunately, many of these processes have toxic byproducts that could be deadly to cells if not removed.

‘Breakthrough’ algorithm exponentially faster than any previous one

What if a large class of algorithms used today—from the algorithms that help us avoid traffic to the algorithms that identify new drug molecules—worked exponentially faster?

Computer scientists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a completely new kind of algorithm, one that exponentially speeds up computation by dramatically reducing the number of parallel steps required to reach a solution.

The researchers will present their novel approach at two upcoming conferences: the ACM Symposium on Theory of Computing (STOC), June 25–29 and International Conference on Machine Learning (ICML), July 10 −15.

The State of Brain-Machine Interfaces

Maryam shanechi, university of southern california.

With recent technological advances, we can now record neural activity from the brain, and manipulate this activity with electrical or optogenetic stimulation in real time. These capabilities have brought the concept of brain-machine interfaces (BMI) closer to clinical viability than ever before. BMIs are systems that monitor and interact with the brain to restore lost function, treat neurological disorders, or enhance human performance.

February 2018

Once-Dreaded Poliovirus Could Treat Brain Cancer

Polio was a devastating disease before the development of the polio vaccine. But now, this once-feared virus might help treat another deadly illness — brain cancer.

In a new study, some patients who had an aggressive type of brain cancer called glioblastoma and who received a genetically modified poliovirus lived much longer than typical for these patients.

The study found that about 21 percent of the brain cancer patients who received the poliovirus therapy were alive three years later. In contrast, among a group of previously treated patients who had the same cancer but received standard therapies (such as chemotherapy), just 4 percent were alive after three years.

Building Bones: Testing a New Osteoporosis Therapy in Microgravity

Every three seconds, a person somewhere in the world breaks a bone due to osteoporosis—a progressive disease that decreases bone density, making bones weak and fragile. Osteoporotic fractures greatly reduce quality of life, and immobilization following a fracture can lead to further bone loss which puts these patients at risk for breaking another bone.

When SpaceX CRS-11 launched to the space station last June, it carried 40 mice to the ISS National Lab for a mission aimed at improving treatment for the millions of people with osteoporosis back on Earth. The Rodent Research (RR)-5 mission successfully proved the robustness of a new potential osteoporosis therapy based on a naturally produced protein, NELL-1, and also led to significant improvements in the delivery of the therapy.

chia soo laptop

Sleep-focused neurotech firm Dreem raises $35M from Johnson&Johnson Innovation and Bpifrance

Dreeming big.

Dreem Announces $35 Million Financing from lead investors Johnson & Johnson Innovation and Bpifrance (press release):

“Dreem, a neurotechnology company, today announced the closing of a new round of funding, raising $35 million USD to rapidly accelerate product development, invest in strategic research and development, and advance the future of sleep technology. Last year, Dreem introduced a comprehensive solution to address a suite of sleep problems and enhance the quality of rest during the night. The Dreem headband monitors brain activity to track sleep accurately and uses auditory stimulation as a medium to help people fall asleep faster, get deeper sleep, and wake up refreshed.

With the $35 million investment, led by strategic investor JJDC, Dreem will bring next-generation sleep technology to markets across the globe and continue to invest in R & D for future sleep-related scientific discoveries and technological innovations … Dreem previously raised a total of $22 million, from billionaire French entrepreneur Xavier Niel, entrepreneur and biotech investor Dr. Laurent Alexandre, and one of the top French insurance leaders — MAIF. With additional investment from JJDC and Bpifrance, Dreem has raised nearly $60 million in less than four years.”