bad cholesterol tagged posts

Protein that Blocks Body’s Ability to Clear Bad Cholesterol identified

Dawei Zhang
U of A researcher Dawei Zhang was part of an international team that identified the protein that interferes with the body’s ability to get rid of “bad” cholesterol, which could point the way to better treatments to prevent heart disease. (Photo: Faculty of Medicine & Dentistry)

Researchers are now looking to develop a drug that will boost existing statin drugs to prevent heart disease. The protein that interferes with low-density lipoprotein (LDL) receptors that clear “bad” cholesterol from the blood was identified in findings recently published in Nature Communications by Dawei Zhang, associate professor of pediatrics in the Faculty of Medicine & Dentistry. Excess LDL cholesterol can lead to atherosclerosis — a narrowing and hardening of arteries — and ultimately, heart attack.

“We...

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Controlling ‘Bad Cholesterol’ Production could Prevent Growth of Tumors, study finds

•Lipoprotein cholesterol supports tumor growth •Tumors increase VLDL/LDL levels •Ces3/TGH deficiency attenuates tumor-induced hyperlipidemia via inhibition of PCSK9 •Tumor growth was suppressed in Ces3/Tgh−/− mice

•Lipoprotein cholesterol supports tumor growth •Tumors increase VLDL/LDL levels •Ces3/TGH deficiency attenuates tumor-induced hyperlipidemia via inhibition of PCSK9 •Tumor growth was suppressed in Ces3/Tgh−/− mice

Several studies have recognized a link between obesity and cancer. Richard Lehner, professor of Pediatrics and investigator at the University of Alberta’s Faculty of Medicine & Dentistry, has taken his research further to understand how tumour cells grow through scavenging very low-density lipoproteins (VLDL) and low-density lipoproteins (LDL) and what mechanisms can be used to reduce the malignant cells’ growth.

The data gathered from their experiments suggest a feed-forward loop, in which tumours not only use lipids as “building blocks” to grow, but they can regulat...

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