HOME >> BIOLOGY >> NEWS
Could vitamins raise levels of bad cholesterol? Animal study suggests they might

The notion that antioxidant vitamins could provide a safe, convenient way to protect the heart from disease appears to have hit a pothole. Instead of protecting the heart, a new study suggests that the vitamins, such as E, C, and beta carotene, could raise the production by the liver of the so-called bad form of cholesterol, which transports cholesterol into artery walls.

The study, led by New York University School of Medicine researcher Edward A. Fisher, MD, PhD, the Leon H. Charney Professor of Cardiovascular Medicine and Professor of Cell Biology, is published in the May issue of the Journal of Clinical Investigation.

"It does appear that antioxidant vitamins may be potentially harmful for the heart based on their ability to increase the secretion of VLDL in the liver cells and in the mice that we studied," says Dr. Fisher, who directs the Lipid Treatment & Research Center at NYU Medical Center.

After its secretion from the liver, VLDL is converted in the bloodstream to low-density lipoprotein (LDL), the so-called bad form of cholesterol. The liver is the major source of atherosclerosis-causing lipoproteins. "However, our study is the first to document this association between antioxidant vitamins and VLDL cholesterol, and more studies are needed to back up our findings," says Dr. Fisher, who is also Director of the Marc and Ruti Bell Vascular Biology and Disease Research Program at NYU.

"Until more data becomes available, we can't make any recommendations about whether people should not use these vitamins," says Dr. Fisher.

Overall, antioxidants usually have been considered healthful. The vitamins scavenge "free radicals," which are highly reactive and damaging forms of oxygen produced by natural metabolic processes in the body and by external sources like the sun's UV rays, ozone, and toxins in pesticides, among other things. In the early 1990s, laboratory studies su
'"/>

Contact: Jennifer Berman
Jennifer.Berman@med.nyu.edu
212-404-3555
New York University Medical Center and School of Medicine
3-May-2004


Page: 1 2 3 4

Related biology news :

1. Endometriosis: Could angiostatic therapy be the new treatment of the future?
2. Could mice hold the secret to longer life?
3. Could memory performance and spatial learning be genetically based?
4. Could a specific protein contribute to erectile dysfunction for the diabetic and obese?
5. Could diabetes treatments fight cancer?
6. Could rice be the source for a natural herbicide?
7. Could hibernators hold the key to improving organ preservation?
8. Could Bt transgenic crops have nutritionally favourable effects on insects?
9. Could one less cookie a day help the fight against fat?
10. Could an anti-marijuana compound hold the key to body weight and appetite control?
11. Study finds genetic aberrations linked to lung cancer; Could help in early diagnosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... PARIS , June 15, 2017  IBM (NYSE: IBM ... the international tech event dedicated to developing collaboration between startups ... on June 15-17. During the event, nine startups will ... deliver value in various industries. ... in the international market, with a 30 percent increase in ...
(Date:5/16/2017)... 2017   Bridge Patient Portal , an ... MD EMR Systems , an electronic medical record ... have established a partnership to build an interface ... GE Centricity™ products, including Centricity Practice Solution (CPS), ... These new integrations will allow healthcare delivery networks ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Wayne. NJ (PRWEB) , ... October 11, 2017 , ... Personal eye wash is a ... rinse one eye at a time. So which eye do you rinse first if a ... you have Plum Duo Eye Wash with its unique dual eye piece. , ...
(Date:10/11/2017)... ... 11, 2017 , ... Disappearing forests and increased emissions are the main causes ... each year. Especially those living in larger cities are affected by air pollution related ... the most pollution-affected countries globally - decided to take action. , “I knew I ...
(Date:10/10/2017)... PA (PRWEB) , ... October 10, 2017 , ... ... City Science Center’s FirstHand program has won a US2020 STEM Mentoring Award. Representatives ... the award for Excellence in Volunteer Experience from US2020. , US2020’s mission is ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... recipients of 13 prestigious awards honoring scientists who have made ... in a scheduled symposium during Pittcon 2018, the world’s leading conference and exposition ...
Breaking Biology Technology:
Cached News: