— Early sign of Alzheimer's reversed in lab — One of the earliest known impairments caused by Alzheimer's disease - loss of sense of smell - can be restored by removing a plaque-forming protein in a mouse model of the disease,…
— Parental controls on embryonic development? — When a sperm fertilises an egg, each contributes a set of chromosomes to the resulting embryo, which at these very early stages is called a zygote. Early on, zygotic genes are inert,…
— Newly discovered heart stem cells make muscle and bone — Researchers have identified a new and relatively abundant pool of stem cells in the heart. The findings in the December issue of Cell Stem Cell, a Cell Press publication, show that…
— BUSM researchers develop blood test to detect membranous nephropathy — Research conducted by a pair of physicians at Boston University School of Medicine (BUSM) and Boston Medical Centre (BMC) has led to the development of a test that can help diagnose…
— New hip implants no better than traditional implants — New hip implants appear to have no advantage over traditional implants, suggests a review of the evidence published on bmj.com today…
— Action needed to improve men's health in Europe — Policies aimed specifically at men are urgently needed to improve the health of Europe's men, say experts on bmj.com today…
— Probiotics reduce infections for patients in intensive care — Traumatic brain injury is associated with a profound suppression of the patient's ability to fight infection. At the same time the patient also often suffers hyper-inflammation, due…
— High blood sugar levels in older women linked to colorectal cancer — Elevated blood sugar levels are associated with an increased risk of colorectal cancer, according to a study led by researchers at Albert Einstein College of Medicine of Yeshiva University.…
— Engineered botulism toxins could have broader role in medicine — The most poisonous substance on Earth - already used medically in small doses to treat certain nerve disorders and facial wrinkles - could be re-engineered for an expanded role in helping…
1 egg yolk worse than a KFC Double Down when it comes to cholesterol
Three leading physicians have published a review in the Canadian Journal of Cardiology warning about the danger of dietary cholesterol for those at risk of a heart attack or stroke. And they say one of the worst offenders is the egg yolk which, depending on size, can contain 215 to 275 mg of cholesterol. The Double Down from Kentucky Fried Chicken contains 150 mg of cholesterol. Patients at risk of cardiovascular disease are advised to limit their total dietary cholesterol to less than 200 mg per day.
The review of studies was authored by stroke prevention expert, Dr David Spence of The University of Western Ontario, nutrition expert Dr David Jenkins of the Risk Factor Modification Centre at St. Michael's Hospital in Toronto, and cholesterol expert Dr Jean Davignon of the Clinique de nutrition metabolisme et atherosclerose in Montreal.
'We wanted to put cholesterol into perspective, as there's been a widespread misconception developing among the Canadian public and even physicians, that consumption of dietary cholesterol and egg yolks is harmless,' says Dr Spence, a professor and scientist at the Schulich School of Medicine and Dentistry, Robarts Research Institute. 'Much of this has to do with effective egg marketing.'
The review comments on the difference between fasting cholesterol and dietary cholesterol levels. It also discusses two large studies which showed no harm from egg consumption in healthy people. The authors point out that in both studies, those who developed diabetes while consuming an egg a day doubled their risk of cardiovascular disease compared to those eating less than an egg a week. The studies also showed a significant increase of new onset diabetes with regular egg consumption.
The authors conclude, 'There is no question that egg white is classed as a valuable source of high-quality protein. Egg yolks, however, are not something that should be eaten indiscriminately by adults without regard to their global cardiovascular risk, genetic predisposition to heart attacks and overall food habits.'
Or subscribe for our Newsletter, a free e-mail publication. It is published practically every day.
Scientists develop nano-sized 'cargo ships' to target and destroy tumours
The Australian E-Health Research Centre joins Open Health Tools Foundation
Research identifies mechanism behind mind-body connection
New molecular tag identifies bone and tooth minerals