quercetin

New research: flavonoid quercetin fights viral infections, protects against chronic lung diseases

Saturday, June 12, 2010 by: S. L. Baker, features writer
Tags: quercetin, lung disease, health news

eTrust Pro Certified

Delicious Pin It
(NaturalNews) Asthma, cystic fibrosis (CF) and chronic obstructive pulmonary disease (COPD) are serious and even life-threatening conditions. However, these health problems share something with a usually minor infection -- the common cold. The connection? Rhinovirus (RV), a single-stranded RNA virus from the picornaviridae family, causes the majority of colds and RV is also known to trigger exacerbations of CF, asthma and COPD.

But now University of Michigan at Ann Arbor scientists have found that a natural substance, the flavonoid quercetin, puts the brakes on the ability of RV to replicate. It also fights inflammation. According to their research just presented at the American Thoracic Society (ATS) 2010 International Conference held in New Orleans, quercetin could be a treatment for rhinovirus-caused infections and could be particularly beneficial for people with serious underlying chronic lung diseases.

That's great news not just for people looking for a possible cure for the common cold but especially for those suffering from conditions like COPD and CF that rob them of the ability to breathe. For example, COPD (which includes emphysema and chronic obstructive bronchitis) causes coughing, wheezing, shortness of breath, chest tightness, and other symptoms. According the National Heart, Lung and Blood Institute, COPD is a major cause of disability and the fourth leading cause of death in the United States. CF is an inherited chronic disease that affects the lungs and digestive system of about 30,000 children and adults in the US. It causes the body to produce a thick, sticky mucus that clogs the lungs and can lead to life-threatening lung infections.

For their study, the University of Michigan research team decided to test quercetin on cells infected with RV. A phytochemical found in the skins of apples, red onions and other foods, quercetin is known to be a powerful antioxidant with antihistamine and anti-inflammatory properties. So the scientists hypothesized that quercetin might reduce the ability of RV to spark an inflammatory response. That's important because inflammation causes oxidative stress which can disrupt the function of epithelial cells (cells that line cavities and structures) inside airways, negatively impacting the ability to breathe.

Their lab experiments with RV infected cells showed that the researchers were right. The results suggested that quercetin actually inhibited the ability of the virus to replicate. The flavonoid also appeared to reduce the RV-triggered immune system response that can cause cytokines (proteins that are secreted by specific cells of the immune system) to induce excess inflammation. "Therefore, quercetin may be beneficial in the treatment of viral infections, particularly in patients with underlying chronic lung disease," the researchers stated.

As NaturalNews has previously reported, evidence has been accumulating over the past several years that shows phytonutrients such as quercetin are powerful protectors of health (http://www.naturalnews.com/027409_foods_meal...). For example, the flavonoid may protect brain cells and help prevent dementia (http://www.naturalnews.com/002509.html). A study by University of South Carolina research found quercetin can boost exercise endurance, too (http://www.naturalnews.com/026591_quercetin_...).

For more information:
http://www.thoracic.org/newsroom/press-relea...
http://www.naturalnews.com/quercetin.html
http://www.nhlbi.nih.gov/health/dci/Diseases...
http://www.cff.org/AboutCF/

Get breaking news alerts on GMOs, fluoride, superfoods, natural cures and more...
Join over four million monthly readers. Email privacy 100% protected. Unsubscribe at any time.


Have comments on this article? Post them here:

comments powered by Disqus

Take Action: Support NaturalNews.com

Email this article to a friend

Permalink to this article:

Reprinting this article: Non-commercial use OK, cite NaturalNews.com with clickable link.

Embed article link: (copy HTML code below):
Most Popular
Today | Week | Month | Year

See all Top Headlines...



GET SHOW DETAILS
+ a FREE GIFT

Now Available at ShopNaturalNews.com

O3 Essentials OraJuvenate™
A powerful, cleansing dental cream for maximum oral/dental health.
New Cancer Solutions
Over 3 hours of content covering today’s best cancer tests, how to kill cancer cells and the best diets and exercise routines.
Freeze-Dried 100% Organic Whole Corn
Our freeze-drying method preserves taste, texture and nutrients better than any other food preservation method ever invented.
Fenix TK35 Flashlight
Tough, waterproof, extremely bright and it’s touted to throw an 800+ lumen beam more than 1,000 feet into the night.
Inca Treasure Smoothie Pack
This pack of our four most popular superfoods from South America is the perfect combo pack for smoothie lovers.
Pink Himalayan Salt
This salt delivers significant levels of magnesium, zinc and selenium, with trace levels of dozens of other elements.
Pinhole Glasses - Aviator Style
Pinhole glasses are becoming famous for helping people improve their vision without the risks of laser surgery.
Oxy-Rich Facial Serum
O3 Essentials Jojoba Oxy-Rich Facial Serum is cellular nourishment for your skin. Helps smooth fine lines while enhancing tissue elasticity.
Freeze-Dried 100% Blackberry Halves
Our freeze-dried blackberry halves are grown in Serbia under strict organic standards.

Also on NaturalNews:

Health Ranger Videos
Activist music
CounterThink Cartoons
Food documentaries
FREE Special Reports
Podcasts
Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

Most Popular Stories

Flu shot kills 19-year-old, but vaccine industry still has total immunity against lawsuits
Here's a nutty fact: Eating more tree nuts lowers the risk of all-cause death by up to 20 percent
Six important facts you're not being told about lost Malaysia Airlines Flight 370
Malaysia Airlines Flight 370 now clearly a government cover-up: All evidence contradicts official story
10 other companies that use the same Subway yoga mat chemical in their buns
BLM fracking racket exposed! Armed siege and cattle theft from Bundy ranch really about fracking leases
High-dose vitamin C injections shown to annihilate cancer
U.S. treating meat with ammonia, bleach and antibiotics to kill the '24-hour sickness'
USDA to allow U.S. to be overrun with contaminated chicken from China
Vaccine fraud exposed: Measles and mumps making a huge comeback because vaccines are designed to fail, say Merck virologists
Battle for humanity nearly lost: global food supply deliberately engineered to end life, not nourish it
Diet soda, aspartame linked to premature deaths in women

25 Amazing Facts About Food

This FREE downloadable report unveils a collection of astonishing and little-known facts about the food we eat very day. Click here to read it now...

 

Resveratrol and its Effects on Human Health and Longevity - Myth or Miracle.

Unlock the secrets of cellular health with the "miracle" nutrient Resveratrol Click here to read it now...

 

Nutrition Can Save America

FREE online report shows how we can save America through a nutrition health care revolution. "Eating healthy is patriotic!" Click here to read it now...

The Healing Power of Sunlight and Vitamin D

In this exclusive interview, Dr. Michael Holick reveals fascinating facts on how vitamin D is created and used in the human body to ward off chronic diseases like cancer, osteoporosis, mental disorders and more. Click here to read it now...

Vaccines: Get the Full Story

The International Medical Council on Vaccination has released, exclusively through NaturalNews.com, a groundbreaking document containing the signatures of physicians, brain surgeons and professors, all of which have signed on to a document stating that vaccines pose a significant risk of harm to the health of children. Click here to read it now...

Health Ranger Storable Organics

GMO-free, chemical-free foods and superfoods for long-term storage and preparedness. See selection at www.StorableOrganics.com



Recommended Resources On:

Natural News trends
Health Ranger news
Natural News GMOs
Mike Adams tracker
Natural News photos
Natural News Global
Natural News in focus
Natural News connect
Natural News shocking stories
Natural News radar
GMOs
Quackwatch
Vaccines
Health freedom
Dr. Paul Offit

This site is part of the Natural News Network © 2014 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners.

eTrust Pro Certified Android app on Google Play

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.