Tag Archives: blood levels

Jab to treat heart disease

Scientists have come up with a ‘magic bullet’ jab, which lowers bad cholesterol and reduces risk of several heart diseases like heart attacks and strokes.

More than four million people in Britain take wonder drugs like statins daily to control their soaring cholesterol levels but still around one in four do not manage to reduce their cholesterol to a safe level.

This is either because the statins do not work properly, patients cut their dose or stop taking them altogether due to terrible side effects.

Now scientists have developed a potent jab that can drastically reduce blood levels of the ‘bad’ LDL cholesterol while significantly increasing levels of the ‘good’ HDL cholesterol.

Risk of heart disease is particularly high in those individuals who have high level of LDL cholesterol and a low level of HDL.

According to the first preliminary human tests, the medicine in this new jab lowers the LDL in healthy volunteers on the highest dose by an average 64 per cent more than those on an inactive placebo injection.

Heart disease

Heart disease

The injected treatment, called AMG145, is a ‘monoclonal’ antibody, a laboratory-made human protein that targets a recently identified cholesterol regulator.

The study took into consideration 54 men and two women, aged between 18 and 45, who were healthy and not on other medications.

In the study, scientists created AMG145 to ‘turn off’ a cholesterol regulator, which interferes with the liver’s ability to remove bad cholesterol from the blood.

Participants received a single injection that contained one of five levels of doses of AMG145 or a placebo.

Sixteen received the injections intravenously. The others had simple injections that delivered the drug just beneath the skin.

After the injections, bad cholesterol was measured frequently for 85 to 113 days, along with other laboratory measures related to heart disease.


With increasing doses of AMG145, blood tests revealed lower levels of bad cholesterol, total cholesterol and apolipoprotein-B, which ‘delivers’ bad cholesterol to the tissue, causing fatty deposits to clog the arteries.

“It appears to be a promising way to lower bad cholesterol,” the Daily Express quoted Dr Clapton Dias, lead researcher as saying.

“With higher doses, bad cholesterol stayed lower for a longer period.”

The study also revealed that the injections were well tolerated and volunteers receiving AMG145 experienced no more side effects than those on the placebo.

Cut the sugar

A recent study has found that adults who consumed high fructose corn syrup for two weeks as 25 percent of their daily calorie requirement had increased blood levels of cholesterol and triglycerides, which have been shown to be indicators of increased risk for heart disease.

The American Heart Association recommends that people consume only five percent of calories as added sugar. The Dietary Guidelines for Americans 2010 suggest an upper limit of 25 percent or less of daily calories consumed as added sugar. To address this discrepancy in recommended consumption levels, researchers examined what happened when young overweight and normal weight adults consumed fructose, high fructose corn syrup or glucose at the 25 percent upper limit.

“While there is evidence that people who consume sugar are more likely to have heart disease or diabetes, it is controversial as to whether high sugar diets may actually promote these diseases, and dietary guidelines are conflicting,” said the study”s senior author, Kimber Stanhope, PhD, of the University of California, Davis.

Sugar

Sugar

“Our findings demonstrate that several factors associated with an elevated risk for cardiovascular disease were increased in individuals consuming 25 percent of their calories as fructose or high fructose corn syrup, but consumption of glucose did not have this effect,” added Stanhope.

In this study, researchers examined 48 adults between the ages of 18 and 40 years and compared the effects of consuming 25 percent of one”s daily calorie requirement as glucose, fructose or high fructose corn syrup on risk factors for cardiovascular disease. They found that within two weeks, study participants consuming fructose or high fructose corn syrup, but not glucose, exhibited increased concentrations of LDL cholesterol, triglycerides and apolipoprotein-B (a protein which can lead to plaques that cause vascular disease).


“These results suggest that consumption of sugar may promote heart disease,” said Stanhope.

“Additionally our findings provide evidence that the upper limit of 25 percent of daily calories consumed as added sugar as suggested by The Dietary Guidelines for American 2010 may need to be re-evaluated,” added Stanhope.

The study will be published in The Endocrine Society”s Journal of Clinical Endocrinology and Metabolism (JCEM).