Category Biology/Biotechnology

Seeing the Future: Zebrafish Regenerates Fully Functional Photoreceptor Cells and Restores its Vision

A microscopic image displaying a field of small, round shapes against a dark background. The shapes are predominantly green. Some shapes have magenta-colored spots or protrusions, creating a mixed pattern of green, white, and magenta. The image is overlaid with a rectangular inset, zooming in on a section of the shapes, where the same color patterns are visible, but in greater detail.
Zebrafish photoreceptor cells stimulated with blue light show correct electrical activity. The picture was taken using the microscope that was custom-built for this study.

Blinding diseases lead to permanent vision loss by damaging photoreceptor cells, which humans cannot naturally regenerate. While researchers are working on new methods to replace or regenerate these cells, the crucial question is whether these regenerated photoreceptors can fully restore vision. Now, a team of researchers led by Prof. Michael Brand at the Center for Regenerative Therapies Dresden (CRTD) of Dresden University of Technology has made an important step forward...

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A Person’s Intelligence Limits their Computer Proficiency More than Previously Thought, say Researchers

man and computer
Credit: Unsplash/CC0 Public Domain

A new study has found that intelligence, in the form of general cognitive abilities such as perception, thinking and remembering, is more important than hitherto thought at predicting a person’s ability to complete common tasks with a PC. The study was published in the International Journal of Human-Computer Studies in August 2024.

“Our research findings are the first clear proof that cognitive abilities have a significant, independent and wide-ranging effect on people’s ability to use a computer. Contrary to what was previously thought, cognitive abilities are as important as previous experience of computer use,” says Aalto University’s Professor Antti Oulasvirta, who studied human-computer interaction extensively with his team.

The findings ha...

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Research cracks the Autism Code, making the Neurodivergent Brain Visible

UVA professor Gustavo Rohde’s technique uses mathematical equations to extract mass transport information from medical images, creating new images for visualization and further analysis. (Rohde Lab, UVA Engineering)

Model grounded in biology reveals the tissue structures linked to the disorder. A researcher’s mathematical modeling approach for brain imaging analysis reveals links between genes, brain structure and autism.

A multi-university research team co-led by University of Virginia engineering professor Gustavo K. Rohde has developed a system that can spot genetic markers of autism in brain images with 89 to 95% accuracy.

Their findings suggest doctors may one day see, classify and treat autism and related neurological conditions with this method, without having to rely on...

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Researchers develop Affordable, Rapid Blood Test for Brain Cancer

Researchers develop affordable, rapid blood test for brain cancer
The biochip is used to detect biomarkers for glioblastoma, a fast-growing brain cancer. Credit: Matt Cashore / University of Notre Dame

Researchers at the University of Notre Dame have developed a novel, automated device capable of diagnosing glioblastoma, a fast-growing and incurable brain cancer, in less than an hour. The average glioblastoma patient survives 12–18 months after diagnosis.

The crux of the diagnostic is a biochip that uses electrokinetic technology to detect biomarkers, or active Epidermal Growth Factor Receptors (EGFRs), which are overexpressed in certain cancers such as glioblastoma and found in extracellular vesicles.

“Extracellular vesicles or exosomes are unique nanoparticles secreted by cells...

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