The chemicals in our pharmaceuticals and personal care products quickly transform into different compounds when they enter the environment. Their toxic effects are relatively unknown.
Category: biotech/medical – Page 2,267
New laser technique images quantum world in a trillionth of a second
For the first time, researchers have been able to record, frame-by-frame, how an electron interacts with certain atomic vibrations in a solid. The technique captures a process that commonly causes electrical resistance in materials while, in others, can cause the exact opposite—the absence of resistance, or superconductivity.
“The way electrons interact with each other and their microscopic environment determines the properties of all solids,” said MengXing Na, a University of British Columbia (UBC) Ph.D. student and co-lead author of the study, published last week in Science. “Once we identify the dominant microscopic interactions that define a material’s properties, we can find ways to ‘turn up’ or ‘down’ the interaction to elicit useful electronic properties.”
Controlling these interactions is important for the technological exploitation of quantum materials, including superconductors, which are used in MRI machines, high-speed magnetic levitation trains, and could one day revolutionize how energy is transported.
After Transplant Procedure, Man’s Semen Contains Only Donor’s DNA
Chris Long is an IT worker in the Washoe County Sheriff’s Department in Reno, Nevada. But all the DNA in his semen belongs to a German man he’s never met.
That’s because Long received a bone marrow transplant from the European stranger four years ago — and the unexpected impact it has had on his biology could affect the future of forensic science.
According to a newly published New York Times story, the purpose of the transplant was to treat Long’s acute myeloid leukemia, a type of cancer that prevents the body from producing blood normally.
Man who had transplant finds out months later his DNA has changed to that of donor 5,000 miles away
Chris Long’s sheriff’s office colleagues have been using him as a human guinea pig, writes Heather Murphy.
Our Bodies Age in Three Distinct Shifts, According to More Than 4,000 Blood Tests
In terms of biological ageing, the body seems to shift gears three times during our lifespans, new research suggests – with 34 years, 60 years and 78 years the key thresholds.
In other words, we now have evidence that ageing isn’t one long, continuous process that moves at the same speed throughout our lives.
The findings might help us understand more about how our bodies start to break down as we get older, and how specific age-related diseases – including Alzheimer’s or cardiovascular disease – could be better tackled.
The Singularity with Michio Kaku and Ray Kurzweil
Recently world-renowned theoretical physicist, Doctor Michio Kaku, sat down for an interview with world-renowned artificial intelligence Doctor Ray Kurzweil, to talk about The Singularity; who is at the forefront of artificial intelligence and robotics.
The two geniuses talked about how soon computer intelligence will soon surpass us and the possible outcomes of this.
Indian-origin scientist finds dead probiotic that can fix leaky gut
A team led by an Indian-origin scientist, Hariom Yadav, has identified a dead probiotic that can reduce age-related leaky gut and control harmful, ageing-related inflammation. Leaky gut, in which microbes and bacteria in the gut leak into the blood stream, causes an increase in low-grade inflammation, and these conditions are common in older people.
A Step Closer to a Bioengineered Liver Fit for Transplantation
Currently over 6,300 people in the UK are waiting for an organ transplant, and sadly everyday around three people die waiting. In efforts to reduce the reliance on organ donors and improve the outlook for patients, alternative sources of organs are being explored by several research groups.
In a study recently published in Nature Biomedical Engineering, bioengineered livers created by decellularization and recellularization were implanted into pigs, where they were able to sustain continuous perfusion for up to 15 days. We spoke to Miromatrix’s CEO, Dr Jeff Ross, to learn more about the study and how it advances the state of bioengineering organs.
Anna MacDonald (AM): What are some of the main challenges faced when creating bioengineered organs?
Common Genetic Link Between Autism and Tourette’s Discovered – Brain Communication Impaired
Lancaster University researchers have discovered, for the first time, how a genetic alteration that increases the risk of developing Autism and Tourette’s impacts on the brain.
Their research also suggests that ketamine, or related drugs, may be a useful treatment for both of these disorders.
Autism affects an estimated 2.8 million people in the UK while Tourette’s Syndrome — a condition that causes a person to make involuntary sounds and movements called tics –affects an estimated 300,000 people in the UK. The treatments available for both disorders are limited and new treatments are urgently required. Recent research has also shown that these disorders are genetically linked.