Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Dust mite levels in Sydney are seasonal

27.11.2007
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.

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.

Lucy Williams | EurekAlert!
Further information:
http://www.researchaustralia.com.au

More articles from Health and Medicine:

nachricht A new approach to targeting cancer cells
20.05.2019 | University of California - Riverside

nachricht Radioisotope couple for tumor diagnosis and therapy
14.05.2019 | Kanazawa University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Self-repairing batteries

UTokyo engineers develop a way to create high-capacity long-life batteries

Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...

Im Focus: Quantum Cloud Computing with Self-Check

With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.

Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...

Im Focus: Accelerating quantum technologies with materials processing at the atomic scale

'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.

However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...

Im Focus: A step towards probabilistic computing

Working group led by physicist Professor Ulrich Nowak at the University of Konstanz, in collaboration with a team of physicists from Johannes Gutenberg University Mainz, demonstrates how skyrmions can be used for the computer concepts of the future

When it comes to performing a calculation destined to arrive at an exact result, humans are hopelessly inferior to the computer. In other areas, humans are...

Im Focus: Recording embryonic development

Scientists develop a molecular recording tool that enables in vivo lineage tracing of embryonic cells

The beginning of new life starts with a fascinating process: A single cell gives rise to progenitor cells that eventually differentiate into the three germ...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

Cement as a climate killer: Using industrial residues to produce carbon neutral alternatives

20.05.2019 | Materials Sciences

When bees are freezing

20.05.2019 | Life Sciences

Machine learning speeds modeling of experiments aimed at capturing fusion energy on Earth

20.05.2019 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>