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Nasal metachromatic cells in infancy in relation to the appearance of atopic disease during the first 6 years of life
Department of Pediatrics, Sahlgrenska Academy of Göteborg University, Göteborg, Sweden/Phadia AB, Uppsala, Sweden.
Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
1997 (Engelska)Ingår i: Allergy. European Journal of Allergy and Clinical Immunology, ISSN 0105-4538, E-ISSN 1398-9995, Vol. 52, nr 7, s. 770-774Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The relationship between the appearance of nasal metachromatic cells (basophils and mast cells) during the first 18 months of life and the development of respiratory and other allergic diseases up to 6 years of age was studied prospectively in 67 children. Follow-up was done at 3, 6, 9, and 18 months and 6 years. Of the 31 children who had detectable metachromatic cells in the nasal mucosa during infancy, 18 had atopic manifestations at 6 years (58%), two were probably atopic (6%), and 11 (36%) were nonatopic. The corresponding numbers for the 33 children without detectable metachromatic cells during infancy were 10 atopic (30%), two probably atopic (6%), and 21 nonatopic (64%) at 6 years (P<0.05). Children having detectable nasal metachromatic cells at every examination were more often allergic than children with no detectable cells at any time during the 6-year follow-up period (P<0.05). In contrast, nasal metachromatic cells were equally commonly demonstrated at 6 years in children with and without current atopic manifestations. We conclude that metachromatic cells appear at an earlier age in the nasal mucosa of atopic than nonatopic infants. The observation further supports the existence of a primary immunologic abnormality in atopic patients as related to allergic inflammatory responses. The diagnostic efficacy of this marker was too low, however, to be clinically useful as a predictor of allergy.

Ort, förlag, år, upplaga, sidor
Wiley InterScience , 1997. Vol. 52, nr 7, s. 770-774
Nyckelord [en]
Allergy prediction, infancy, metachromatic cells, nasal mucosa
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
URN: urn:nbn:se:liu:diva-15852DOI: 10.1111/j.1398-9995.1997.tb01237.xPubMedID: 9265995OAI: oai:DiVA.org:liu-15852DiVA, id: diva2:127638
Tillgänglig från: 2008-12-10 Skapad: 2008-12-09 Senast uppdaterad: 2017-12-14Bibliografiskt granskad
Ingår i avhandling
1. An 18 year Follow-up of Allergy Development: Findings of Nasal Markers of Allergic Inflammation
Öppna denna publikation i ny flik eller fönster >>An 18 year Follow-up of Allergy Development: Findings of Nasal Markers of Allergic Inflammation
2008 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[sv]
En 18 års uppföljning av allergiutveckling : fynd av markörer i näsa vid allergisk inflammation
Abstract [en]

Background: In addition to the family history of allergy (FH), there is a need o find objective markers of allergy development as early in life as possible in order to focus preventive measurements on high risk infants. Rhinitis problems are common causes to morbidity in adults due to allergic as well as non-allergic mechanisms. Accurate diagnoses are essential for decisions of optimal management of the patients, but in non-allergic rhinitis groups there are no objective tests to verify the diagnosis, if this is needed.

Aims: The primary aim was to evaluate the occurrence of nasal metacromatic (MC) cells during infancy as predictors for allergy development in a group of high risk subjects from birth up to 18 years of age. Additional aims were to find and evaluate nasal markers with ability to differentiate between allergic rhinitis with and without current allergen exposure from normal controls.

Subjects and methods: New-borns (n = 67) with and without family histories of allergy were included, and during the first 18 months of life occurrence of nasal MC could be evaluated in 64 infants (33 positive/31 negative MC findings). The cohort was followed up for allergy development at the ages of 18 months, 6 years and 18 years. Nasal markers as MC, nasal NO, nitrite/nitrate in nasal lavage and acoustic rhinometry at the 18-years follow-up were related to the allergic manifestations at this age.

Results: Positive nasal MC findings during infancy predicted allergy development up to 18 years of age in 31/33 subjects (94 %), as compared to 37/44 with positive FH (84 %). Negative MC findings during infancy did not exclude the risk, as 15/31 developed allergy (48 %). At the 18-years follow-up the numbers of individuals with demonstrable MC were significantly higher (p = 0.01) in the group of individuals with allergy symptoms (16/30) compared to the group of individuals with no allergy (1/12). Nasal NO levels, nitrite/nitrate concentrations in nasal lavages and acoustic rhinometry did not differentiate the allergic groups from the normal group.

Conclusions: Positive nasal MC findings during infancy predicted allergy development up to 18 years of age, and the cell findings often preceded the allergic symptoms. The marker can not be used as a single predictor of allergy development due to negative MC findings in a high proportion of allergic subjects. Positive MC findings combined with positive FH resulted in the best the risk evaluation. Differences between groups with and without current allergen exposure and healthy controls were not found by means of acoustic rhinometry, nasal MC, nasal NO or nitrites/nitrates levels. Further research to find reliable nasal markers is needed.

Ort, förlag, år, upplaga, sidor
Linköping: Linköping University Electronic Press, 2008. s. 40
Serie
Linköping Studies in Health Sciences. Thesis, ISSN 1100-6013 ; 89
Nationell ämneskategori
Medicin och hälsovetenskap
Identifikatorer
urn:nbn:se:liu:diva-15853 (URN)978-91-7393-748-1 (ISBN)
Presentation
2008-12-03, Elsa Brändströms sal, Campus US, Linköpings Universitet , Linköping, 13:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2008-12-09 Skapad: 2008-12-09 Senast uppdaterad: 2009-04-30Bibliografiskt granskad

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Irander, KristinaBjörkstén, Bengt

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Allergy. European Journal of Allergy and Clinical Immunology
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