Memory Loss In Old Age No Longer Linked To Dying Brain Cells

You must remember this: The specter of dying brain cells and an irretrievable loss of memory during old age no longer amounts to anything more than folklore.

File it away with all of the other old wives' tales.

Michela Gallagher, a professor of psychology at The Johns Hopkins University, announced recently at the 28th annual meeting of the Society of Neuroscience that there is now overwhelming evidence showing that cognitive decline in old age is far less a factor of neuro-degeneration than commonly thought.

"It's good news," Gallagher said, particularly for Baby Boomers who no longer need fear that expiring brain cells are the natural accomplice of doddering old age, subverting memory and other higher order mental processes.

By studying human data and tracing the neurological pathways of more than 800 healthy rats across their lifetimes, Gallagher has spent much of the past decade illuminating the mysterious processes that link memory and aging.

What she has discovered is that the dreaded loss of gray matter, which so many people believe is a natural result of growing old, actually is a process that occurs throughout a person's lifetime. Neuron numbers make a slow decline across decades, as cells die off regularly and consistently from youth to old age. While the brain demonstrates a remarkable ability to compensate for those losses -- forestalling any noticeable effect until the losses become, she said, "very, very profound" -- it now appears that even those neuron losses that do occur are confined to populations of cells that may not play any significant role in memory.

"It represents a real paradigm shift in neuroscience," Gallagher said. "For years, people have been trying to discover what caused the death of brain cells during aging. Our research has quite reversed that idea. We now know it's more important to understand the existing cells than to account for the one

Contact: Gary Dorsey
Johns Hopkins University

Page: 1 2

Related biology news :

1. Memory fails you after severe stress
2. Memory for music: Musicians dont have to hear themselves perform after they learn a song
3. Memory loss after brain injury worse when E4 form of Alzheimers gene present
4. Memory mechanism found at nerve cell connections in the brain
5. Memory, forgetfulness help hamsters time breeding
6. Study Finds Choline Deficiency Harms Memory Center In Mammals Brains
7. Life Among Dead Brain Cells: Discovery Could Help Improve Memory Capacity Of Stroke Victims
8. Wolf Prize In Medicine Awarded To Kandel, Columbias Pioneer Of Memory Research
9. Researchers Identify Function Of Brain Receptor Subunit Linked To Memory, Stroke, Dementia
10. Molecular Memory Tunes Adrenaline To Stress
11. Extra Choline During Pregnancy Enhances Memory In Offspring

Post Your Comments:

(Date:7/19/2019)... ... July 18, 2019 , ... VetStem Biopharma has long ... As a result of a two-year research collaboration with Calidi Biotherapeutics, VetStem ... platform in veterinary medicine. VetStem should be able to fast-track this cancer therapy ...
(Date:7/17/2019)... (PRWEB) , ... July 15, 2019 , ... ... computational science expertise exclusively for Life Sciences and Healthcare companies, announces the availability ... critical advisory services and strategic direction to start-up and emerging bio-pharma companies interested ...
(Date:7/10/2019)... ... July 10, 2019 , ... Inference Solutions , a ... today announced its role in Pizza Hut Australia’s digital transformation initiative ... A key part of this initiative is implementation of an automated call-steering application ...
Breaking Biology News(10 mins):
(Date:6/11/2019)... , ... June 11, 2019 , ... ... Personalized Stem Cells Inc. (PSC) , has announced that their GMP facility ... Food and Drug Branch for manufacturing. This is an important milestone for ...
(Date:5/31/2019)... ... May 29, 2019 , ... ... USPTO providing proprietary interest to our methodology, processes, and diagnostic techniques. The ... TREATMENT… extends Somnology’s IP rights including our proprietary sleep scoring methodology. The ...
(Date:5/22/2019)... , ... May 22, 2019 , ... Artemis ... a $8 million Series A funding round co-led by Astanor Ventures and ... State Development Fund and iSelect Fund . The company has raised $11.75m ...
(Date:5/14/2019)... ... May 13, 2019 , ... Leak ... instruments for the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries’ is excited ... website aims to improve LDA’s ability to communicate directly with the marketplace; serving ...
Breaking Biology Technology:
Cached News: