Saturday December 15, 2018

Omega-3 levels may better predict mortality risk than cholesterol

"We all know that the serum cholesterol level is a major risk factor for coronary heart disease (CHD), and since the latter is a major cause of death, it would be reasonable to expect that a high cholesterol level would portend higher risk for premature death", said a researcher

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Omega-3 acids can indicate risk of cardiovascular diseases. Pixabay
Omega-3 acids can indicate risk of cardiovascular diseases. Pixabay
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  • Presence of Omega-3 can help in detecting cardiovascular diseases
  • More cholesterol means more risk of disease
  • It is important for one to keep their cholesterol in check

Measuring the levels of Omega-3 fatty acids present in the blood may indicate the risk of developing cardiovascular diseases and mortality more profoundly than serum cholesterol, researchers have claimed. The serum cholesterol level is the total amount of cholesterol present in the blood.

Fish contains Omega-3 fatty acids. Pixabay

A higher “Omega-3 Index” a combination of the EPA and DHA (two important types of Omega-3) content of red blood cell membranes is associated with a 33 per cent reduced risk of death due to total cardiovascular disease (CVD) events, total coronary heart disease events, and total strokes, the study showed.

“We all know that the serum cholesterol level is a major risk factor for coronary heart disease (CHD), and since the latter is a major cause of death, it would be reasonable to expect that a high cholesterol level would portend higher risk for premature death,” said lead author William Harris, researcher at Britain’s University of Nottingham.

Also Read: Omega-3s from fish more effective in cancer prevention

For the study, published in the Journal of Clinical Lipidology, the team compared the total serum cholesterol and Omega-3 fatty acids, two “risk factors” for heart disease, in 2,500 individuals aged 60 years, who were free of known cardiovascular disease (CVD) at baseline.

benefits of donating blood
It is important to keep one’s biostat levels in check. Pixabay

Researchers primarily focussed on total mortality (death from any cause) as an end-point, but also tracked death from CVD, cancer and other causes. In addition, they reported the associations between Omega-3 Index levels and a risk for any CVD event fatal or not whether a heart attack or stroke.The results showed that the category most strongly associated with the Omega-3 Index was non-cardiovascular disease, non-cancer deaths from all other causes.

“When baseline serum cholesterol levels were substituted for the Omega-3 Index in the same multi-variable models, the former was not significantly associated with any of the tracked outcomes whereas the latter was related to four of the five outcomes assessed,” Harris said. IANS

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World’s Smallest Wearable Can Help in Preventing Skin Cancer

It also demonstrated the ability to measure white light exposure for seasonal depression, a mood disorder characterised by depression that occurs at the same time every year

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World's smallest device to prevent skin cancer, mood disorder risk. Pixabay

Scientists have developed the world’s smallest wearable, battery-free device that can warn people of overexposure to ultraviolet rays (UV) — a leading factor for developing skin cancer.

Currently, people do not know how much UV light they are actually getting. The rugged and waterproof device interacts wirelessly with the phone and helps maintain an awareness and for skin cancer survivors.

Smaller than an M&M (colourful button-shaped chocolates) and thinner than a credit card, the device can optimise treatment of neonatal jaundice, skin diseases, seasonal affective disorder and reduce risk of sunburns and skin cancer.

Users can glue the device on to their hats, clip it to sunglasses or stick it on their nail and can simultaneously record up to three separate wavelengths of light.

It is always on yet never needs to be recharged.

“There is a critical need for technologies that can accurately measure and promote safe UV exposure at a personalised level in natural environments,” said Steve Xu, from Northwestern University in the US.

Cancer
Cancer Ribbon. Pixabay

“We hope people with information about their UV exposure will develop healthier habits when out in the sun,” said Xu.

There are no switches or interfaces to wear out, and it is completely sealed in a thin layer of transparent plastic, the researchers stated, in the paper published in the journal Science Translational Medicine.

Participants who mounted device on themselves recorded multiple forms of light exposure during outdoor activities, even in the water.

Also Read- First NASA Probe to Return Asteroid Sample Reaches Destination

The findings showed that it monitored therapeutic UV light in clinical phototherapy booths for psoriasis and atopic dermatitis (immune diseases) as well as blue light phototherapy for newborns with jaundice in the neonatal intensive care unit.

It also demonstrated the ability to measure white light exposure for seasonal depression, a mood disorder characterised by depression that occurs at the same time every year. (IANS)