Saturday May 25, 2019

Avoid Cheese Omelettes For a Healthier Heart

The guidelines also include weekly egg consumption as part of a healthy diet

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US, cheesemakers
At the gala event to announce the winner at the U.S. Cheese Championship, ticket-holders got to sample dozens of cheeses, including the always-popular cheddar, in Green Bay, Wis., March 7, 2019. VOA

Do you savour cheese omelettes? If so, think again as consuming more eggs and dietary cholesterol may up the risk of cardiovascular disease (CVD) and death from any cause, researchers have warned.

The study suggests that egg yolks are one of the richest sources of dietary cholesterol among all commonly consumed foods. One large egg has 186 milligrams of dietary cholesterol in the yolk.

“The take-home message is really about cholesterol, which happens to be high in eggs and specifically yolks,” said co-author Norrina Allen, Associate Professor at the Northwestern University.

“As part of a healthy diet, people need to consume lower amounts of cholesterol.People who consume less cholesterol have a lower risk of heart disease,” Allen added.

For the study, which will be published in the journal JAMA, the team involved 29,615 adults from six prospective cohort studies for up to 31 years of follow up.

They found eating 300 mg of dietary cholesterol per day was associated with 17 per cent higher risk of incident cardiovascular disease and 18 per cent higher risk of all-cause deaths.

Cheesemakers, US
Guests at the U.S. Cheese Championship gala could help themselves to samples from a giant wheel of Swiss cheese that had been among the cheeses judged in the competition, in Green Bay, Wis., March 7, 2019. VOA

The cholesterol was the driving factor independent of saturated fat consumption and other dietary fat, the team said.

Eating three to four eggs per week was associated with 6 per cent higher risk of CVD and 8 per cent higher risk of any cause of death, they added.

The researchers say that eating less than 300 milligrams of dietary cholesterol per day was the guideline recommendation before 2015. However, the most recent dietary guidelines omitted a daily limit for dietary cholesterol.

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The guidelines also include weekly egg consumption as part of a healthy diet. An adult in the US gets an average of 300 milligrams per day of cholesterol and eats about three or four eggs per week.

Other animal products such as red meat, processed meat and high-fat dairy products (butter or whipped cream) also have high cholesterol content, said lead author Wenze Zhong from the varsity. (IANS)

Next Story

Researchers Develop, New Adhesive Patch That Can Minimize Heart Attack Damage

For the research, published in Nature Biomedical Engineering, the team tested the patch with rats and showed that the patch could be effective in reducing post-heart attack damage. 

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Heart
The researchers said the patch, which costs "less than a penny", has been optimised using a computer model of the heart to perfectly match the material's mechanical properties. Pixabay

Researchers have developed a new adhesive patch that could reduce the stretching of cardiac muscle following a heart attack.

Developed by a team of researchers from Brown University, US; Fudan University, China and Soochow University, China, the patch is made from a water-based hydrogel material and can be placed directly on the heart to prevent left ventricular remodelling — a stretching of the heart muscle.

A heart attack puts the cardiac muscle at a risk of stretching out that can reduce the functioning of the heart’s main pumping chamber.

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The researchers say the initial results are promising for eventual use in human clinical trials. Pixabay

“Part of the reason that it’s hard for the heart to recover after a heart attack is that it has to keep pumping,” said co-author Huajian Gao, a professor at Brown University.

“The idea here is to provide mechanical support for damaged tissue, which hopefully gives it a chance to heal,” he added.

The researchers said the patch, which costs “less than a penny”, has been optimised using a computer model of the heart to perfectly match the material’s mechanical properties.

“If the material is too hard or stiff, then you could confine the movement of the heart so that it can’t expand to the volume it needs to,” Gao said.

“But if the material is too soft, then it won’t provide enough support. So we needed some mechanical principles to guide us,” he pointed out.

For the research, published in Nature Biomedical Engineering, the team tested the patch with rats and showed that the patch could be effective in reducing post-heart attack damage.

heart
A heart attack puts the cardiac muscle at a risk of stretching out that can reduce the functioning of the heart’s main pumping chamber. Pixabay

“The patch provided nearly optimal mechanical supports after myocardial infarction (i.e. massive death of cardiomyocytes),” said co-author Ning Sun, a cardiology researcher at Fudan University.

“[It] maintained a better cardiac output and thus greatly reduced the overload of those remaining cardiomyocytes and adverse cardiac remodelling.”

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The researchers say the initial results are promising for eventual use in human clinical trials.

“It remains to be seen if it will work in humans, but it’s very promising,” Gao said. (IANS)