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Featured researches published by S. Poikonen.


Pediatric Allergy and Immunology | 2008

Sensitization to turnip rape and oilseed rape in children with atopic dermatitis: a case-control study

S. Poikonen; T. Puumalainen; Hannu Kautiainen; Timo Palosuo; Timo Reunala; Kristiina Turjanmaa

Turnip rape and oilseed rape 2S albumins are new allergens in children with atopic dermatitis suspected for food allergy. We recently found that 11% (206/1887) of these children had a positive skin prick test to seeds of oilseed rape (Brassica napus) and/or turnip rape (Brassica rapa). In the present case‐control study we examined how the children with atopic dermatitis sensitized to turnip rape and oilseed rape had been breast‐fed and whether they had some common sensitization pattern to certain foods or pollens. A total of 64 children with atopic dermatitis and a positive skin prick test to turnip rape and/or oilseed rape (≥5 mm) were examined. Sixty‐four age‐ and sex‐matched children with atopic dermatitis but negative skin prick tests to turnip rape and oilseed rape served as case controls. The turnip rape and/or oilseed rape sensitized children with atopic dermatitis had significantly more often positive skin prick tests reactions and IgE antibodies to various foods (cow’s milk, egg, wheat, mustard; p < 0.01) and pollens (birch, timothy, mugwort; p < 0.01) than the control children. They had been exclusively breast‐fed for a longer period (median 4 months; p < 0.05) and had more often associated asthma (36%) and allergic rhinitis (44%). Children with atopic dermatitis sensitized to oilseed rape and turnip rape had high frequency of associated sensitizations to all foods and pollens tested showing that oilseed plant sensitization affects especially atopic children who have been sensitized to multiple allergens.


Acta Paediatrica | 2008

Sensitization and allergy to turnip rape: a comparison between the Finnish and French children with atopic dermatitis.

S. Poikonen; F. Rancé; T. Puumalainen; G Le Manach; Timo Reunala; Kristiina Turjanmaa

Aim: Finnish children with atopic dermatitis (AD) are frequently sensitized and show positive food challenge to turnip rape. We examined whether French children are also allergic to this oilseed plant and whether mustard could be the cross‐reacting allergen.


The Journal of Allergy and Clinical Immunology | 2006

Napins, 2S albumins, are major allergens in oilseed rape and turnip rape

T. Puumalainen; S. Poikonen; Annika Kotovuori; Kirsi Vaali; Nisse Kalkkinen; Timo Reunala; Kristiina Turjanmaa; Timo Palosuo


The Journal of Allergy and Clinical Immunology | 2005

Isolated hevein-like domains, but not 31-kd endochitinases, are responsible for IgE-mediated in vitro and in vivo reactions in latex-fruit syndrome.

Piia Karisola; Annika Kotovuori; S. Poikonen; Einari A. Niskanen; Nisse Kalkkinen; Kristiina Turjanmaa; Timo Palosuo; Timo Reunala; Harri Alenius; Markku S. Kulomaa


Dermatitis | 2008

Sensitization to Turnip Rape: a Comparison between Finnish and French Children with Atopic Dermatitis

S. Poikonen; F. Rancé; T. Puumalainen; G. Le Manach; H. Kautiainen; Timo Palosuo; Timo Reunala; Kristiina Turjanmaa


World Allergy Organization Journal | 2007

Turnip/oilseed rape and mustard allergy in Finnish and French children with atopic dermatitis

S. Poikonen; F. Rancé; T. Puumalainen; Gail Le Manach; Timo Palosuo; Kristiina Turjanmaa; Timo Reunala


The Journal of Allergy and Clinical Immunology | 2006

Turnip Rape and Oilseed Rape Allergy in Children with Atopic Dermatitis: a Case Control Study

T. Reunala; S. Poikonen; H. Kautiainen; T. Puumalainen; Timo Palosuo; K. Turjanmaa


The Journal of Allergy and Clinical Immunology | 2005

Identification of 2S albumin as an allergen in turnip rape and oilseed rape

T. Puumalainen; Annika Kotovuori; S. Poikonen; Kirsi Vaali; Nisse Kalkkinen; T. Reunala; K. Turjanmaa; Timo Palosuo


The Journal of Allergy and Clinical Immunology | 2005

N-terminal hevein-like domains (4.3 kDa) but not 31 kDa endochitinases are responsible for IgE-mediated in vitro and in vivo reactions in latex-fruit syndrome

Piia Karisola; Annika Kotovuori; S. Poikonen; Einari A. Niskanen; Nisse Kalkkinen; K. Turjanmaa; Timo Palosuo; T. Reunala; Harri Alenius; Markku S. Kulomaa


The Journal of Allergy and Clinical Immunology | 2005

Turnip rape and oilseed rape are novel food allergens in children

S. Poikonen; T. Puumalainen; H. Kautiainen; Timo Palosuo; Timo Reunala; Kristiina Turjanmaa

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Kirsi Vaali

University of Helsinki

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Piia Karisola

University of Jyväskylä

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