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Category: neuroscience – Page 684

Gene Editing, The Possible Key To Immortality

When we think about gene editing, the first thing we remember is the designer babies, and that it’s usually called unethical. But actually, gene editing (CRISPR) may be one of the most promising upcoming medical technologies. Learn why in this video.

Check out other videos from this series:
https://www.youtube.com/playlist?list=PLnWSi4zEceYXPCBYXZ9ZEV-9q44ebksoo.

0:00 — Opening scene.
0:20 — Gene editing is promising. Here’s why.
2:35 — Also, it can transform the beauty industry.
3:49 — How does gene editing work?
4:16 — My thoughts on that.
5:16 — End credits.

Text me: [email protected].
Business inquiries: [email protected].

Directed by Valentin Shevtsov.
© Shevtsov Originals, 2021.

#dna #science #medicine.

Continue reading “Gene Editing, The Possible Key To Immortality” | >

Neurons in the Olfactory Cortex Link Smells to Places

Summary: Neurons in the primary olfactory cortex play a role in encoding spatial maps, a new study reports.

Source: champalimaud centre for the unknown.

Smell has the power to transport us across time and space. It could be the sweet fragrance of jasmine, or the musty scent of algae. Suddenly, you are back at your childhood home, or under the burning sun of a distant shore.

Scientists create mind-blowing tool to ‘see’ millions of brain cell connections in mice

To solve the mysteries of how learning and memory occur, Johns Hopkins Medicine scientists have created a system to track millions of connections among brain cells in mice—all at the same time—when the animals’ whiskers are tweaked, an indicator for learning.

Researchers say the new tool gives an unprecedented view of brain cell activity in a synapse—a tiny space between two , where molecules and chemicals are passed back and forth.

“It was science fiction to be able to image nearly every synapse in the brain and watch a change in behavior,” says Richard Huganir, Ph.D., Bloomberg Distinguished Professor of Neuroscience and Psychological and Brain Sciences at The Johns Hopkins University and director of the Department of Neuroscience at the Johns Hopkins University School of Medicine.

Where does consciousness come from? And how do our brains create it? A look at one of life’s biggest mysteries

General anesthesia doesn’t just work on your brain or on your mind. It works on your consciousness. By altering the delicate electrochemical balance within the neural circuitry inside your head, the basic ground state of what it is to “be” is — temporarily — abolished. In this process lies one of the greatest remaining mysteries in science, and in philosophy too.

Somehow, within each of our brains, the combined activity of billions of neurons, each one a tiny biological machine, is giving rise to a conscious experience. And not just any conscious experience, your conscious experience, right here, right now.

New study says cataract surgery associated with lower risk of dementia

After analyzing the data, researchers found that participants who underwent cataract surgery had nearly 30 percent lower risk of developing dementia compared with those who did not have the procedure. The study also found that the reduction of risk continued for at least a decade following surgery and was associated specifically with the lower risk of Alzheimer’s.

“This is really exciting because no other medical intervention has shown such a strong association with lessening dementia risk in older individuals,” Cecilia S. Lee, ophthalmologist and the study’s lead author, said in a statement.