Connect with us

Life Style

Traffic noise increase heart attack risk: Study

Gorkha Post

Published

on

LONDON — Researchers have found that the amount of traffic noise to which you are exposed increases the risk of heart attack.

The increase in risk – though slight – is greatest with road and rail traffic noise, less with aircraft noise, researchers said.

For the study Andreas Seidler from Germany’s Dresden University of Technology and his co-authors assessed data from statutory health insurers on over a million Germans over the age of 40.

In this case-control study of secondary data, the addresses of persons living in the Rhine-Main region were matched precisely to road, rail, and traffic noise exposure measurements for 2005.

When the analysis was restricted to patients who died of heart attack up to 2014/2015, a statistically significant association was found between noise exposure and the risk of heart attack.

The authors believe the lower risk from aircraft noise can be explained by the fact that, unlike road and rail traffic noise, aircraft noise never remains continuously above 65 dB (decibel).

They also see indications from their analysis that exposure to traffic noise influences not just the genesis, but the course of a heart attack.

Although strictly speaking these results show only an association between traffic noise and heart attack, the authors believe that the sheer numbers of people affected by noise pollution mean that it is now right to start intensive efforts towards effective prevention of traffic noise.

This study is part of the Europe-wide NORAH (Noise-Related Annoyance, Cognition, and Health) study investigating the health consequences of traffic noise.

ALSO READ :  Scientists find substance that protects against premature birth

The findings appeared in the journal Deutsches Arzteblatt International.

With IANS inputs

Continue Reading

Life Style

Depression linked to low levels of amino acid

Raghu Kshitiz

Published

on

Depression linked to low levels of amino acid. Representationla image

KATHMANDU — Reduced levels of an amino acid found in blood samples have been linked to major depressive disorder, according to a new study at the University of Eastern Finland and Kuopio University Hospital.

People suffering from major depressive disorder (MDD) have reduced arginine levels, which is an amino acid, the body uses to produce, such as nitric oxide.

Researchers studied 99 adults aged 20-71 with diagnosed MDD and 253 non-depressed control adults in a report published Wednesday in the Journal of Affective Disorders.

Nitric oxide, in turn, is a nervous system and immune defence mediator, and it also plays a role in vascular regulation. The global arginine bioavailability ratio (GABR) is an indicator of the body’s arginine levels, and the ratio has previously been used to measure the body’s capacity to produce nitric oxide.

ALSO READ :  Regular exercise, coconut oil control high BP

The body uses the amino acid arginine to produce nitric oxide, which is a mediator for the nervous system and immune defender, and plays a role in vascular regulation. Reduced arginine bioavailability is also known to be an independent risk factor of cardiovascular diseases.

“It is possible that depression-induced inflammatory responses lead to reduced arginine levels,” doctoral student Toni Ali-Sisto, the lead author of the study, said in a release.

“This may result in insufficient production of nitric oxide for the needs of the nervous system and circulation. However, we don’t know yet what exactly causes reduced arginine bioavailability in people with depression.”

Researchers analyzed three amino acids — arginine, citrulline and ornithine — from participants’ fasting glucose samples. In addition, symmetric and asymmetric dimethylarginine concentrations were also measured from the serum. This data was used to calculate their global arginine bioavailability ratio.

No significant differences were found in the symmetric and asymmetric dimethylarginine concentrations between the two groups.

ALSO READ :  Regular exercises keep heart healthy

“Although our study shows that people with depression have reduced arginine bioavailability, this doesn’t mean that taking an arginine supplement would protect against depression. That’s an area for further research,” Ali-Sisto says.

And there were no significant differences between people who remained depressed and those who had recovered.

With Agency Inputs

Continue Reading
Advertisement Cheap Air fare and package tours!

LATEST TWEET

Classifieds

Posted 2 months ago

We have latest collections of designer sarees. Contact for wholesale or retails prices. We also deliver all types of fashion collections for men and women.

 Fashion & Clothings /  Kathmandu / 89 views

NPR 2,999.00

Posted 2 months ago

Remember us for all travel related services : Hotel booking ( Globally) Vehicle reservation Flight Ticket( Domestic/International) Tour packages Train ticket reservation Hiking and Trekking

 Travel & Tours /  Kathmandu / 83 views

NPR 2,000.00

Search Listings

TOP PICKS