Featured Research

from universities, journals, and other organizations

Allergies To Foods, Plants May Predict Chronic Fatigue Syndrome

Date:
January 20, 1999
Source:
National Jewish Medical And Research Center
Summary:
Allergies to foods, plants or animals could cause chronic fatigue syndrome (CFS) in some people, according to a National Jewish Medical and Research Center physician who treats people with the disorder.

DENVER-Allergies to foods, plants or animals could cause chronic fatigue syndrome (CFS) in some people, according to a National Jewish Medical and Research Center physician who treats people with the disorder.

“A number of the CFS patients said they feel worse when they have allergies,” said James Jones, M.D., who recently completed a CFS study looking at four groups of people--one with CFS, one with allergies, one with depression and a control group. The study was published in a recent issue of the Journal of Allergy and Clinical Immunology. Dr. Jones recently began studying 120 people in a three-year, $900,000 study funded by the National Institutes of Health (NIH).

CFS is defined as six months of fatigue that interferes with daily functioning with no other disease being identified. (Depending on the way CFS is defined, between 13 and 300 people in every 100,000 have the disease.) Symptoms include swollen lymph nodes, sore throat, muscle and joint aches, cognitive problems, headaches and sleep difficulties followed by an increase of symptoms 24 hours after exercise.

Researchers have looked at a number of chemical changes in the body as a signal of CFS, but Dr. Jones found that “the only consistent finding is allergy.” Seventy-five percent of people with CFS have allergies; 10 to 20 percent of the general population have allergies.

A chemical change that occurs during virus infections and allergy attacks is the production of several types of cytokines, including interferon alpha and tumor necrosis factor. These chemicals trigger and coordinate the immune response, allowing killing of virus-infected cells and protection of uninfected cells. Their role in allergies is less clear. The process causes inflammation of tissue, tiredness and body aches.

“CFS and allergy patients produced the same mediators of inflammation, such as interferon and tumor necrosis factor,” he said. “Allergens, therefore, may contribute to production of CFS symptoms.”

The three-year NIH-funded study explores the extent that exercise and allergies impact people with CFS. In the CFS group, half have allergies and half don’t. In the control group, half have allergies and half don’t.

The study will “challenge” people with CFS in several ways, Dr. Jones said. People enrolled in the study will use an exercise bike, inhale an allergen they are known to be sensitive to and receive histamine, which causes allergy-like feelings of a stuffy head and runny nose. Following exercise, many people with CFS complain of symptoms.

These symptoms are similar to those people experience with a cold or the flu, but “what’s peculiar in these people is that it lasts for a long period of time,” Dr. Jones said.

National Jewish Medical and Research Center is ranked as the best hospital in the United States for respiratory diseases by U.S. News & World Report, 1998.


Story Source:

The above story is based on materials provided by National Jewish Medical And Research Center. Note: Materials may be edited for content and length.


Cite This Page:

National Jewish Medical And Research Center. "Allergies To Foods, Plants May Predict Chronic Fatigue Syndrome." ScienceDaily. ScienceDaily, 20 January 1999. <www.sciencedaily.com/releases/1999/01/990119104557.htm>.
National Jewish Medical And Research Center. (1999, January 20). Allergies To Foods, Plants May Predict Chronic Fatigue Syndrome. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/1999/01/990119104557.htm
National Jewish Medical And Research Center. "Allergies To Foods, Plants May Predict Chronic Fatigue Syndrome." ScienceDaily. www.sciencedaily.com/releases/1999/01/990119104557.htm (accessed September 2, 2014).

Share This




More Health & Medicine News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Get on Your Bike! London Cycling Popularity Soars Despite Danger

Get on Your Bike! London Cycling Popularity Soars Despite Danger

AFP (Sep. 1, 2014) Wedged between buses, lorries and cars, cycling in London isn't for the faint hearted. Nevertheless the number of people choosing to bike in the British capital has doubled over the past 15 years. Duration: 02:27 Video provided by AFP
Powered by NewsLook.com
Can You Train Your Brain To Eat Healthy?

Can You Train Your Brain To Eat Healthy?

Newsy (Sep. 1, 2014) New research says if you condition yourself to eat healthy foods, eventually you'll crave them instead of junk food. Video provided by Newsy
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins