Navigation Links
Cholesterol Levels May Vary By Season
Date:3/7/2013

By Steven Reinberg
HealthDay Reporter

THURSDAY, March 7 (HealthDay News) -- Cholesterol levels increase with winter's arrival and drop again as warmer weather returns, a new study by Brazilian researchers suggests.

"In the winter, people should be careful with their cholesterol levels," said lead researcher Dr. Filipe Moura, a doctoral student at the State University of Campinas.

Whether these changes in cholesterol are putting patients at risk for heart attacks or stroke isn't clear, Moura said. It's a complex picture and these changes might have a role, but there are many other factors, he added.

There are several possible reasons cholesterol varies by season, Moura said, including changes in diet, exercise and exposure to the sun.

"In the winter, people consume more calories and eat fattier foods, which could have an effect on their bad cholesterol," he said. "Also, it's common for people to exercise less during the winter and stay in more."

People also get less sun in the winter, so they get less vitamin D, which can have an effect on cholesterol, Moura said. He also noted that during the winter people are prone to colds and the flu, which can effect cholesterol levels.

The study findings were scheduled to be presented Saturday at the annual meeting of the American College of Cardiology in San Francisco.

Moura's team collected data on more than 227,000 people who had their cholesterol checked in primary-care centers in the Brazilian city of Campinas between 2008 and 2010.

The researchers found that during the winter, low-density lipoprotein (LDL), or "bad" cholesterol, rose an average of 7 milligrams per deciliter compared to the summer, which is about an 8 percent increase during the cold months. During the summer, levels of high-density lipoprotein (HDL), the "good" cholesterol, rose about 9 percent, but so did levels of fats in the blood called triglycerides, which rose about 5 percent, the researchers found.

This is different than what other studies have found, Moura said. A possible explanation is Campinas's climate. The city's elevation is roughly 1,800 to 2,500 feet above sea level, and the winters are mild and dry.

Moura said these changes may be even more extreme in the United States, Europe or other areas that have bigger climate changes between winter and summer.

He next plans to look at patients with heart disease to see whether the seasonal change in cholesterol results in more heart attacks.

What these findings mean for patients isn't clear, said Dr. Gregg Fonarow, a spokesman for the American Heart Association and a professor of cardiology at the University of California, Los Angeles.

"This study suggests there may be modest seasonal variation ... with higher LDL levels in winter months compared to summer, but further studies are needed to confirm these findings and whether there is any meaningful impact on cardiovascular risk," Fonarow said.

Because this study was presented at a medical meeting, the data and conclusions should be viewed as preliminary until published in a peer-reviewed journal.

More information

To learn more about cholesterol, visit the American Heart Association.

SOURCES: Filipe Moura, M.D., State University of Campinas, Brazil; Gregg Fonarow, M.D., spokesman, American Heart Association, and professor, cardiology, University of California, Los Angeles; March 9, 2013, presentation, American College of Cardiology annual meeting, San Francisco


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New discoveries linking gut bacteria with cholesterol metabolism give hope for the future
2. Jonny Bowden Names 8 Cholesterol Myths, Publishes New Book
3. Overlooked ugly cholesterol causes heart disease
4. Smoking, high blood pressure and cholesterol can be fatal for hemorrhage survivors
5. Cholesterol medicine affects energy production in muscles
6. VABC Responds to Study on Use of Cholesterol Lowering Drug Statins on Cancer Patients
7. Statins Plus Exercise Best at Lowering Cholesterol, Study Finds
8. Letter from doctor boosts cholesterol medication use
9. No Need to Fast Before Cholesterol Blood Test: Study
10. New drug significantly lowers bad cholesterol
11. Could Cholesterol Treatment Fight Repeat Heart Attack?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cholesterol Levels May Vary By Season
(Date:5/24/2017)... ... May 24, 2017 , ... STATEMENT OPPOSING PRESIDENT DONALD TRUMP’S ... Donald Trump’s budget, “A New Foundation for American Greatness—President's Budget FY 2018,” because ... marginalizes underserved populations, undermines productivity, and destroys the social safety net needed by ...
(Date:5/24/2017)... ... 24, 2017 , ... Accordant Technology, a trusted IT solutions ... an analytics-first approach, layered with machine learning, that provides real-time visibility into the ... cloud to the edge. Through the new partnership, customers get the real-time situational ...
(Date:5/24/2017)... ... May 24, 2017 , ... ... food ingredient solutions for the food and beverage industry offers Citri-Fi®, a natural ... statements during the purchasing decision process. As a result, labels need to deliver ...
(Date:5/23/2017)... Pa. (PRWEB) , ... May 23, 2017 , ... ... plans to open The Alexis Joy D’Achille Center for Women’s Behavioral Health at ... care available in western Pennsylvania for women suffering from pregnancy-related depression. Construction of ...
(Date:5/23/2017)... ... May 23, 2017 , ... The ... professionals, is pleased to announce the organization’s Certified Strength Coach credential has earned ... Strength Coach (CSC) program validates the competency of qualified candidates for jobs in ...
Breaking Medicine News(10 mins):
(Date:5/10/2017)... Global Health Intelligence (GHI), the leading healthcare data analytics ... 2017 ranking of the Best-Equipped Hospitals in Latin America ... GHI,s hospitals database for Latin America , which is ... database covers 86% of the hospitals in Latin ... each institution in key areas such as beds, medical specialties, ...
(Date:5/10/2017)... , May 10, 2017 CSSi, the global ... the clinical research industry, is proud to announce the ... The new website features both enriched content and a ... and enhances the company,s already well-established position as the ... "After many months of hard work, we ...
(Date:5/9/2017)... , May 9, 2017  Oramed Pharmaceuticals ... ), a clinical-stage pharmaceutical company focused on the ... that the Canadian Intellectual Property Office has granted ... Oral Administration of Exenatide". The patent covers Oramed,s ... GLP-1 is an incretin hormone that ...
Breaking Medicine Technology: