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A large, Phase 3 study testing a Covid-19 vaccine being developed by AstraZeneca and the University of Oxford at dozens of sites across the U.S. has been put on hold due to a suspected serious adverse reaction in a participant in the United Kingdom.

The large, Phase 3 study testing the vaccine has been put on hold due to a suspected serious adverse reaction in a participant in the U.K.

This year, the U.S. Food and Drug Administration is expected to approve islet transplants as a treatment for people with type 1 diabetes. The transplants, which deliver insulin-making cells to replace those lost to the disease, have been classified as experimental in the United States since they were first performed more than 20 years ago.

Islet transplants hold great promise for treating type 1 diabetes, especially for what’s colloquially known as “brittle diabetes,” in which patients have a lot of difficulty safely managing their blood sugar with insulin injections, said Stanford interventional radiologist Avnesh Thakor, MD, PhD, who conducts research on islet biology and transplantation.

Nearly 1.6 million Americans have type 1 diabetes, and more than 70,000 are likely to be good candidates for islet transplant.

Summary: Researchers demonstrate how a single injection of fibroblast growth factor 1 (FGF1) can restore blood sugar levels to normal for extended periods in rodent models of type 2 diabetes. Studies show how FGF1 affects specific neurons and perineuronal nets to help restore blood sugar levels to normal, thus sending diabetes into remission.

Source: UW Health

In rodents with type 2 diabetes, a single surgical injection of a protein called fibroblast growth factor 1 can restore blood sugar levels to normal for weeks or months. Yet how this growth factor acts in the brain to generate this lasting benefit has been poorly understood.

Men’s delayed immune-system responses to the coronavirus could put them at higher risk of dying from COVID-19 than women, according to a study from University of Washington researchers. They found that, for women under the age of 60, their immune systems produced a near immediate defense against the virus. However, for men of all ages, it took an average of three days for their bodies to deploy T cells (white blood cells that sense and destroy virus-infected cells) to fight the novel coronavirus. note: estrogen and progesterone are in clinical trials as treatment, along with over 300 drugs.

It took three days for men infected with COVID-19 to develop immune system responses, while women’s bodies began to fight the virus right away.

The head of the World Health Organisation has called on countries to invest in their public health systems, as he stressed that the world must be better prepared for the next pandemic.

“This will not be the last pandemic,” WHO Director-General Tedros Adhanom Ghebreyesus told a press conference Monday, “but when the next pandemic comes, the world must be ready, more ready than it was this time.”

He said too many countries had neglected their basic public health systems in recent years and called on governments to “invest in public health as an investment in a healthier and safer future.”

The new structure works by mapping the backbones of amino acids to locations of chemicals in the Protein Data Bank involved in interactions with them. The researchers note that only recently has the data bank come to hold enough information to allow for its use in such an application. And they also note that the technique and structure can also be used to produce delivery vehicles based on proteins and also small molecule applications…

A pair of researchers at the University of California, San Francisco, has developed a new protein structure that allows for simplifying the process of custom-designing proteins. In their paper published in the journal Science, Nicholas Polizzi and William DeGrado discuss their structural unit and how they used it. Anna Peacock, with the University of Birmingham, has published a Perspective piece outlining the work by the team in California in the same journal issue.

One of the things that chemists are asked to do is custom design proteins for use in certain special applications. As the researchers note, doing so is considered to be very challenging. It usually involves a considerable amount of trial and error which generally translates to high development costs. In this new effort, the researchers have devised a new unit of protein structure to help with such projects. They call it a van der Mer structure and describe how it can be used to directly map ligand chemical group functionality to peptide residue backbone coordinates.

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Cooking foods at temperatures higher than boiling produces advanced glycation end (AGE) products, which induce insulin resistance and inflammation, and shorten lifespan in mice. Similar data exists in humans for the effect of AGE products on insulin resistance and inflammation, and a higher dietary AGE product intake is associated with cancer in both men and women. Accordingly, reducing dietary AGE product intake may be an important strategy for improving health and increasing lifespan in people.

The achievement opens a pathway for development of the first practical and efficient devices to generate and detect light at terahertz wavelengths—between infrared light and microwaves. Such devices could be used in applications as diverse as communications in outer space, cancer detection, and scanning for concealed weapons.

The research could also enable exploration of the basic physics of matter at infinitesimally small scales and help usher in an era of quantum metamaterials, whose structures are engineered at atomic dimensions.

A team of researchers from Stowers Institute for Medical Research, Howard Hughes Medical Institute and Stanford University has discovered conserved regeneration-responsive enhancers linked to tail regeneration in fish common to two species. In their paper published the journal Science, the group describes their genetic study of two fish species and what they learned about the role of conserved regeneration-responsive enhancers in allowing the fish to regenerate tail parts.

As the researchers note, some species are able to regenerate parts of their body when they are lost. For instance, lizards can regrow lost tails, while many other animals, including most mammals, cannot regrow damaged body parts. Despite much research, scientist have not been able to explain this. In this new effort, the researchers have found what they believe to be a major clue—conserved regeneration-responsive enhancers.

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