Never miss a story

Get subscribed to our newsletter


×



New York: Scientists reported in a study that star-shaped brain cells appear to help in keeping blood pressure and blood flow inside the brain on a healthy tone.

The finger-like appendages of astrocytes, called end-feet, quite literally wrap around the countless, fragile blood vessels in the brain, constantly monitoring what is going on inside and around them.

“This is the first evidence of the astrocytes’ role in pressure-induced myogenic (muscle) tone, which is keeping things regular,” said Dr Jessica A Filosa, neurovascular physiologist at Georgia Regents University.

Filosa terms astrocytes as “housekeepers”. When they sense a change in blood pressure inside the brain, one of their duties is releasing signals that help dilate or constrict the blood vessels, whichever it takes to maintain the healthy status quo.

In fact, astrocytes keep their fingers on the pulse of blood vessels and neurons simultaneously, apparently playing an important role in balancing their needs.

“They are perfect bridges between what is going on with neuronal activity and blood flow changes to the brain.”

Astrocytes relentlessly monitor and respond to changes in blood pressure to help keep the brain from getting too much blood.

The team is now looking into what effect activating astrocytes has on neuronal activity.

The paper appeared in The Journal of Neuroscience. (IANS)


Popular

wikimedia commons

Mortgage loan graph

By- Blogger Indifi

EMI is known as equated monthly installments. It is a fixed payment made by the borrower each month to repay the loan amount. The EMI is divided into two loan components. One is the principal amount, and the second is the interest amount. Whether you are applying for a personal loan, business loan, home loan, car loan, or education loan, EMIs are easy to calculate using the EMI loan calculator.

Keep Reading Show less
Photo by Flickr.

Swastika, one of the sacred symbols used by many religions like Hinduism, Jainism, and Buddhism.

The symbol of Swastika is known to signify peace, prosperity, and good fortune in the religious cultures of Eurasia. In fact, this symbol is considered very significant in Hinduism, Buddhism, and Jainism. But, at the same time, it has become one of the most misunderstood religious symbols and has been globally banned in many countries.

The reason why the symbol of Swastika is banned in many countries is because of its association with Adolf Hitler's extreme political ideology, Nazism, as Swastika as its official symbol.

Keep Reading Show less
Pixabay

Since emerging into the public eye with a historic gold medal at the junior world championships in 2016, he has maintained a high level of performance

India celebrated a historic day on August 7, as 23-year-old Neeraj Chopra became the first Indian to win an Olympic gold medal in athletics. In the men's javelin throw event, he achieved his greatest triumph, throwing the javelin 87.58 meters on his second try.

Neeraj Chopra was born on December 24, 1997, in Khandra village in Haryana's Panipat district. He grew up in a Haryanavi family of farmers. He is the brother of two sisters. He graduated from Dayanand Anglo-Vedic College in Chandigarh and is now enrolled in Lovely Professional University in Jalandhar, Punjab, pursuing a Bachelor of Arts degree. Chopra was bullied due to his obesity as a kid, which prompted his father to enroll him in a nearby gym. He then joined a gym in Panipat, where Jaiveer Choudhary, a javelin thrower, noticed his potential and coached him. When the 13-year-old Chopra finished training under Jaiveer for a year, he was enrolled at the Tau Devi Lal Sports Complex in Panchkula, where he began training under coach Naseem Ahmed.

Keep reading... Show less