The economy of energy and time is very important to human life. & UM Researcher publishes novel computational method for discovering new drugs @ Understanding the human being is very difficult because it´s related to several factors of life & A 100-hour MRI scan captured the most detailed look yet at a whole human brain – A device recently approved by the U.S. FDA made extremely precise images of a postmortem sample @ My new Twitter followers and mentions – LinkedIn – Positive feedback by Facebook about this blog – Images

A 100-hour MRI scan captured the most detailed look yet at a whole human brain

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UM Researcher publishes novel computational method for discovering new drugs

Newspoint > News > Features > 2019 > July > UM Researcher publishes novel computational method for discovering new drugs


An international team of researchers from industry and academia has recently published a novel computational method to find new medicinal drugs.

This bioinformatics method uses structures of known protein-ligand complexes to find important interaction points (called PIPs) between the two. The 3D arrangement of these points is then used to guide a search for potential drugs in a large database containing millions of molecules. The method has important repercussions in drug discovery, particularly to improve productivity in the drug discovery process.

The method has been used successfully in a commercial setting at Oxford Drug Design, a biotechnology company which focuses on the discovery of new antibiotics.

This research collaboration consists of Dr Jean-Paul Ebejer (Centre for Molecular Medicine and Biobanking, University of Malta), Prof. Charlotte Deane, Prof. Garrett Morris, Wing Ki Wong (University of Oxford), and Prof. Paul Finn (University of Buckingham and Oxford Drug Design).

The study, titled “Ligity: A Non-Superpositional, Knowledge-Based Approach to Virtual Screening”, appeared in the peer-reviewed Journal of Chemical Information and Modelling (an American Chemical Society publication). This publication is open access and  accessible here.

For further information about this research kindly contact Dr Jean-Paul Ebejer.

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A 100-hour MRI scan captured the most detailed look yet at a whole human brain

A device recently approved by the U.S. FDA made extremely precise images of a postmortem sample


brain scan

CLOSE-UP  A 3-D view of the entire human brain, taken with a powerful 7 Tesla MRI and shown here from two angles, could reveal new details on structures in the mysterious organ.



Over 100 hours of scanning has yielded a 3-D picture of the whole human brain that’s more detailed than ever before. The new view, enabled by a powerful MRI, has the resolution potentially to spot objects that are smaller than 0.1 millimeters wide.

“We haven’t seen an entire brain like this,” says electrical engineer Priti Balchandani of the Icahn School of Medicine at Mount Sinai in New York City, who was not involved in the study. “It’s definitely unprecedented.”

The scan shows brain structures such as the amygdala in vivid detail, a picture that might lead to a deeper understanding of how subtle changes in anatomy could relate to disorders such as post-traumatic stress disorder.   

To get this new look, researchers at Massachusetts General Hospital in Boston and elsewhere studied a brain from a 58-year-old woman who died of viral pneumonia. Her donated brain, presumed to be healthy, was preserved and stored for nearly three years.

Before the scan began, researchers built a custom spheroid case of urethane that held the brain still and allowed interfering air bubbles to escape. Sturdily encased, the brain then went into a powerful MRI machine called a 7 Tesla, or 7T, and stayed there for almost five days of scanning.

The strength of the 7T, the length of the scanning time and the fact that the brain was perfectly still led to the high-resolution images, which are described May 31 at Associated videos of the brain, as well as the underlying dataset, are publicly available.

ZOOM IN This video moves from the outer wrinkles to the inner structures and then back out to the wrinkles of a complete human brain at extremely high resolution.


Researchers can’t get the same kind of resolution on brains of living people. For starters, people couldn’t tolerate a 100-hour scan. And even tiny movements, such as those that come from breathing and blood flow, would blur the images.

But pushing the technology further in postmortem samples “gives us an idea of what’s possible,” Balchandani says. The U.S. Food and Drug Administration approved the first 7T scanner for clinical imaging in 2017, and large medical centers are increasingly using them to diagnose and study illnesses.

These detailed brain images could hold clues for researchers trying to pinpoint hard-to-see brain abnormalities involved in disorders such as comas and psychiatric conditions such as depression. The images “have the potential to advance understanding of human brain anatomy in health and disease,” the authors write.Citations

B.L. Edlow et al7 Tesla MRI of the ex vivo human brain at 100 micron resolution. Posted May 31, 2019.Further Reading

L. Sanders. New ways to image and control nerve cells could unlock brain mysteries. Science News Online. January 17, 2019.

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