Friday, March 5, 2021
Home Life Style Health & Fitness Brain cell density does not decay with increasing age, say researchers

Brain cell density does not decay with increasing age, say researchers

images (3)

New York: Researchers at University of Illinois Chicago have shown that while the brain shrinks with age, cell density remains preserved throughout the brain, not just in specific regions. They arrived at this discovery with the help of new ultra-high-field magnetic resonance images (MRI).

The findings also suggest that the maintenance of brain cell density may protect against cognitive impairment as the brain gradually shrinks in normal aging.

Neuroscientists have long known that the brain shrinks with age, but for a long time they thought the loss in volume was associated with a loss of brain cells. That was disproved by studies that showed it is the neurons themselves that shrink, while the number of cells remain the same in normal older adults.

The images were created by a powerful 9.4-Tesla MRI, the first of its kind for human imaging, the study said.

The 9.4 T magnetic field is more than three times stronger than that of a typical MRI machine in a doctor’s office and is currently approved only for research.

“The information provided by these 9.4-Tesla scans may be very useful in helping us detect tiny losses of brain cells and the reduction in cell density that characterizes the early stages of neurodegenerative diseases that can take decades to develop before symptoms appear, like Alzheimer’s disease,” said lead author Keith Thulborn, professor at the University of Illinois at Chicago.

“If we can identify when Alzheimer’s pathology starts, the efficacy of new drugs or other interventions to slow or prevent Alzheimer’s disease can be tested and monitored when the disease starts, instead of after it’s developed for 20 or 30 years and becomes clinically apparent,” Thulborn noted.

The study that involved scanning the brains of 49 cognitively normal adults ranging in age from 21 to 80 was published in the journal NMR in Biomedicine.

Thulborn thinks the ultra-high-field scanners eventually will be approved for clinical use.

“We can use the 9.4 T to look at brain cell loss in real time in patients experiencing stroke, or to see whether chemotherapy for brain tumors is working in higher resolution that is just not available using the current 3 T clinical scanners,” he said. (IANS)

STAY CONNECTED

19,120FansLike
362FollowersFollow
1,773FollowersFollow

Most Popular

New App That May Help in Quitting Drug Use!

Researchers at the University of Illinois Urbana-Champaign are developing a new smartphone app that may help teach young adults how to talk to a...

Good News! These Regional Biggies Are All Set To Go Multillingual!

Top superstars of regional cinema have a new formula to reach out to a pan-Indian audience. While earlier, films would be made in one...

WhatsApp Launched One-to-One Call Feature For Desktop Apps

WhatsApp on Thursday announced that private and secure one-to-one voice and video calls features are now available on the desktop app for Windows and...

IIT G Designed An AI Based System To Detect Colorectal Cancer

A team of researchers from the Indian Institute of Technology (IIT) Guwahati has designed an automated Artificial Intelligence (AI)-based system to detect colorectal cancer...

Issue of Drug Abuse and Crime Against Women Are Interlinked: Ravi Kishan

Actor-politician Ravi Kishan will soon anchor the crime-based non-fiction show Mauka-E-Vardaat, and he says the issues of drug abuse and a crime against women...

SC Expresses Displeasure on The Streaming of Films on OTT With Pornographic Content

The Supreme Court on Thursday expressed displeasure on the streaming of films on web platforms without any prior screening of the content and also...

Forearm Fracture – Here’s What You Need To Know

It won't be wrong to say that traumatic injuries are unexpected. You never know when an accident would occur or even a slight fall...

Indian Scientists Develop Low-Cost Optical Spectrograph That Can Locate Distant Galaxies, Quasars

Keeping in mind Prime Minister's call to develop technology in all spheres, Indian scientists have indigenously designed and developed a low-cost optical spectrograph. This...

Recent Comments