Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Diagnosis of rhinitis and atopical dermatitis

07.10.2005


“The symptoms of rhinitis and atopical dermatitis amongst children between the ages of 6 and 7 in the Pamplona area have increased significantly and the diagnosis of both ailments has doubled in the period between 1994 and 2001. Nevertheless, amongst children between 12 and 14-age group there has been a drop in the incidence of symptoms of rhinitis and that of atopical dermatitis has stabilised”. This was the conclusion of Ana María Irujo Andueza in her PhD thesis defended recently at the Public University of Navarra.

8,607 children in 66 centres

The most common atopical illnesses in infancy are, besides asthma, atopical dermatitis and allergic rhinitis. Studies of a multicentre nature have shown a significant rise in these ailments throughout the world and the causes of the increase are, as yet, not sufficiently clear.



Within this context, the aim of the PhD thesis was to evaluate the prevalence of allergic rhinitis and atopical dermatitis amongst the school population in the area around Pamplona, the capital of Navarre, using parameters as sex, language, date of birth and school. The data obtained was compared with a previous study undertaken in 1994 in the same geographical zone, and against those carried out at other centres at a national and international level as part of the third phase of the International Study of Asthma and Allergies in Childhood (ISAAC).

In 2001 Ana María Irujo carried out a transversal epidemiological study - using questions from the ISAAC – on two populations of children, a group between 6- and 7- year-olds and another between 12 and 14, both groups being drawn from 66 schools and colleges, mostly in the Pamplona-Irunea city area but also from centres in Barañain, Zizur Mayor, Zizur Menor, Atarrabia, Huarte, Burlada and Mutilva Baja.

The first signs of asthma

Rhinitis and atopical dermatitis are considered to be “the first signs of asthma”. The expression “allergic triad” is used to refer to dermatitis followed by rhinitis and ending up with asthma. The rhinitis is characterised by an increase in nasal secretion, also normally associated with conjunctival factors of the eyes that significantly affect the quality of life, given that exercise and physical activity in general are affected.

According to the study, for the group of 6- and 7-year olds, the current frequency of rhinitis is 14%, i.e. 1.33 times higher than in 1994, with a higher incidence amongst boys than girls. Moreover, the proportion (8.1%) of children between 6 and 7 with prior diagnosis for allergic rhinitis or hay fever doubled compared to the data for 1994.

However, amongst the group of children between 12 and 14, there is a greater incidence of rhinitis amongst girls (31.6% compared to 27.6% amongst boys). Moreover, amongst this age group, 37.9% had had rhinitis at some time; 29.5% currently suffer from the ailment and 15% have rhinoconjunctivitis. Thus, there is reason to believe that the problem is under-diagnosed.

Compared to the 1994 data, the study concluded that, amongst the group of adolescents, the incidence of rhinitis over the last year has dropped 1.37 times and that of accumulated rhinitis by 1.67 times.

Another factor thrown up by the study was the significant differences between Spanish-speakers and Basque-speakers. In both age groups a greater incidence of rhinitis was registered by those responding in Basque.

Stabilisation of dermatitis

As regards dermatitis, this is a pathology which is on the increase and which starts in early infancy. Most cases start before the age of two and are characterised by red marks that itch a lot, and that come and go.

The study undertaken showed that, amongst the population of 6- and 7-year-olds, the incidence of atopical dermatitis is currently greater amongst boys (10.1%) than amongst girls (7.5%). In the 12-14 group, on the other hand, girls predominate with dermatitis.

As regards gender, both in the 6 to 7 group and in the 12 to 14 one, girls are more prone to getting this illness. Also, the Basque-speaking school population shows a greater percentage of diagnosis for atopical dermatitis than the Spanish-speaking one (42.6% against 31.2%).

It should be pointed out that, in the older group, the symptoms of dermatitis, as with rhinitis, descended or stabilised over the seven years separating the two studies.

Garazi Andonegi | alfa
Further information:
http://www.basqueresearch.com

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

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: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Research finds new molecular structures in boron-based nanoclusters

13.07.2018 | Materials Sciences

Algae Have Land Genes

13.07.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>