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Archive for the ‘biotech/medical’ category: Page 630

Mar 24, 2023

Cryo-electron microscopy captures structure of a protein pump

Posted by in categories: biotech/medical, genetics, neuroscience

Hailey-Hailey disease is a rare, inherited condition characterized by patches of blisters appearing mainly in the skin folds of the arm pits, groin and under the breasts. It is caused by a mutation in the gene that codes for a specific protein involved in the transportation of calcium and manganese ions from the cell cytoplasm and into a sac-like organelle called the Golgi apparatus.

Scientists at Tohoku University, together with colleagues in Japan, have uncovered some aspects of this ’s structure that could help researchers understand how it works. The findings, published in the journal Science Advances, help build the foundations for research into finding treatments for Hailey-Hailey disease and other neurodegenerative conditions.

The protein the team studied is called secretory pathway Ca2+/Mn2+-ATPase, or SPCA for short. It is located in the Golgi apparatus, a cellular sac-like structure that plays a crucial role in protein quality control before they are released into cells. The Golgi apparatus also acts like a sort of calcium ion storage container. Calcium ions are vital for cell signaling processes and are important for proteins to function properly, so maintaining the right calcium ion balance inside cells is necessary for their day-to-day activities.

Mar 24, 2023

An ‘ecosystem’ of tools to boost machine learning-based design of metal–organic frameworks

Posted by in categories: biotech/medical, chemistry, robotics/AI

A team of chemists and computer scientists from the Swiss Federal Institute of Technology Lausanne, the University of California and Institut des Sciences et Ingenierie Chimiques, Ecole, have developed an ecosystem of tools to boost machine-learning-based design of metal-organic frameworks.

In their study, reported in the journal ACS Central Science, Kevin Maik Jablonka, Andrew Rosen, Aditi Krishnapriyan and Berend Smit coded tools to convert data into machine learning inputs to create a system to boost machine-learning frameworks.

Reticular chemistry is the science of designing and synthesizing porous crystalline materials with certain predefined structures and properties (building blocks). These materials, known as (MOFs) have applications in gas storage, separation, catalysis, sensing and drug delivery.

Mar 24, 2023

The Rise Of Genetic Engineering | Gene-Editing | Documentary

Posted by in categories: bioengineering, biotech/medical, education, food, genetics

Genetic Engineering extends far beyond the controversial news headlines that obsess over ‘designer babies’. In the science community, gene-editing tools like CRISPR and PRIME editing will do nothing less than save the planet.

The Rise Of Genetic Engineering (2022)
Writers: Kyle McCabe, Christopher Webb Young.
Stars: Rodolphe Barrangou, George Church, Mary Beth Dallas.
Genre: Documentary.
Country: United States.
Language: English.
Release Date: August 24, 2022 (United States)

Continue reading “The Rise Of Genetic Engineering | Gene-Editing | Documentary” »

Mar 24, 2023

CRISPR-induced DNA reorganization for multiplexed nucleic acid detection Communications

Posted by in category: biotech/medical

Nucleic acid sensing involving CRISPR technologies is powerful but has certain limitations, such as PAM sequence requirements and limited multiplexing. Here, authors report a CRISPR-based barcoding technology which enables multiple outputs from any target sequence, based on cis-and trans-cleavage.

Mar 23, 2023

DNA Double Helix Splits Due to Invasive Nature of Unzipping Process

Posted by in category: biotech/medical

Scientists had a hard time reconstructing how complex molecular parts are being held together. However, that was before SISSA’s Cristian Micheletti and his team studied how the DNA double helix unzips when translocated at high velocity through a nanopore.

DNA Double Helix’s Unzipping

Continue reading “DNA Double Helix Splits Due to Invasive Nature of Unzipping Process” »

Mar 23, 2023

MIT is testing light and sound to combat Alzheimer’s

Posted by in categories: biotech/medical, neuroscience

Our brains aren’t limited to producing just one type of brain wave at a time, but usually, one type is dominant, and the type it is can often be linked to your level of alertness: delta waves may dominate when you sleep, while gamma waves might dominate when you concentrate intensely.

The idea: Researchers have previously observed that people with Alzheimer’s — a devastating neurological disease affecting more than 6 million people in the US alone — may have weaker and less in-sync gamma waves than people who don’t have the disease.

Continue reading “MIT is testing light and sound to combat Alzheimer’s” »

Mar 23, 2023

Organoids — growing mini BRAINS

Posted by in categories: biotech/medical, neuroscience

Organoids are an incredible tool for research into the brain. Cerebral organoids are created by growing human stem cells in a bioreactor. They might be the key to unlocking the answers to many of our questions about the brain. We explain how they’re made and some of the discoveries they’ve helped with so far!

✍ Script by Duranka Perera (https://www.durankaperera.com/)
✍ Thumb by “Broken” Bran — https://twitter.com/BranGSmith.

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Mar 23, 2023

Researchers devise new strategies to overcome a key CRISPR flaw

Posted by in category: biotech/medical

It’s a long-debated flaw in CRISPR: When you try to give Cas9 to a patient to snip its DNA, that person’s immune system may recognize that the protein comes not from us but from our ancient microbial foes. And it might then attack.

Mar 23, 2023

What if You Give a Rat Human Brain Cells? You Can Control Its Behavior… — YouTube

Posted by in categories: biotech/medical, media & arts, neuroscience

Scientists transplanted human cerebral organoids (“minibrains”) into rats, to better study brain disorders. The neurons grown in vivo looked more like mature human brain cells than those grown in vitro, and they made better models of Timothy syndrome. The human minibrains formed deep connections with the rat brains, received sensory information, and drove the rat’s behavior.

More on how minibrains are grown and used, and the issue of organoid consciousness: https://www.youtube.com/watch?v=u6FGq7_t3Eo.

Continue reading “What if You Give a Rat Human Brain Cells? You Can Control Its Behavior… — YouTube” »

Mar 23, 2023

Growing Mini-Brains in a Lab: Cerebral Organoids Could Save Your Life, But Has Science Gone Too Far?

Posted by in categories: biotech/medical, media & arts, neuroscience, science

Chapters:
0:00 Intro.
0:43 Growing Organoids.
2:57 Minibrains in Science & Medicine.
4:46 Giving Minibrains Psychedelics.
5:26 Minibrains With Eyes.
6:30 Can Minibrains Feel?
7:22 Looking For Consciousness.
9:03 The Future of Minibrain Research.
10:47 Human Minibrains Grafted Onto Mice.
12:10 What’s Next?

Videography by Island Fox Media.

Continue reading “Growing Mini-Brains in a Lab: Cerebral Organoids Could Save Your Life, But Has Science Gone Too Far?” »

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