Featured Research

from universities, journals, and other organizations

Dust Mite Levels In Sydney Are Seasonal

Date:
December 13, 2007
Source:
Woolcock Institute of Medical Research
Summary:
House dust mite allergen levels in Sydney beds are determined by the season, with new research discovering fluctuations of such magnitude between summer and autumn levels they may be sufficient to influence asthma symptoms in sufferers.

House dust mite (HDM) allergen levels in Sydney beds are determined by the season, with new research discovering fluctuations of such magnitude between summer and autumn levels they may be sufficient to influence asthma symptoms in sufferers.

Related Articles


A Sydney study involving over 500 children has found HDM allergen levels to be at their minimum in summer and increasing approximately 2-3 fold during late autumn.

This annual cycle was observed over seven years and partly determined by relative humidity. Results were measured using dust samples collected from the children's beds on 13 occasions, and relative humidity and temperature were recorded.

Researcher Daniel Crisafulli, from the Woolcock Institute of Medical Research explains the study was part of the Childhood Prevention Asthma Study (CAPS) conducted between 1997 and 2004.

"Such fluctuations are probably unavoidable and should serve as a reminder that people with asthma should be monitoring the severity of their symptoms and implement their asthma action plans" he said.

"The results provide the most comprehensive set of observations to date on seasonal fluctuations of mite allergens in children's beds with climate.

"There was some variation in the annual timing of peaks, depending on the preceding seasonal climate. Allergen peaks could also be correlated with humidity peaks two months earlier, as humidity has an effect on the mite population.

Mr Crisafulli points out that other factors such as viral infections are known to be important causes of severe asthma attacks and that the interaction between seasonal allergen levels and viruses will be examined in a future study.

The research paper will be published in the December issue of Allergy.


Story Source:

The above story is based on materials provided by Woolcock Institute of Medical Research. Note: Materials may be edited for content and length.


Cite This Page:

Woolcock Institute of Medical Research. "Dust Mite Levels In Sydney Are Seasonal." ScienceDaily. ScienceDaily, 13 December 2007. <www.sciencedaily.com/releases/2007/11/071126100611.htm>.
Woolcock Institute of Medical Research. (2007, December 13). Dust Mite Levels In Sydney Are Seasonal. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2007/11/071126100611.htm
Woolcock Institute of Medical Research. "Dust Mite Levels In Sydney Are Seasonal." ScienceDaily. www.sciencedaily.com/releases/2007/11/071126100611.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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