eISSN: 2299-0046
ISSN: 1642-395X
Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii
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6/2020
vol. 37
 
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abstract:
Original paper

Evaluation of PSEN1 subunit of the γ-secretase gene in patients with psoriasis vulgaris: a pilot study

Beata Bergler-Czop
1
,
Bartosz Miziołek
2
,
Katarzyna Sierant
2
,
Jakub Sazanów-Lubelski
2
,
Ligia Brzezińska-Wcisło
1

  1. Department of Dermatology, Medical University of Silesia, Katowice, Poland
  2. Chair and Department of Dermatology, Andrzej Mielęcki Silesian Independent Public Hospital, Katowice, Poland
Adv Dermatol Allergol 2020; XXXVII (6): 915–920
DOI: https://doi.org/10.5114/ada.2020.102108
Online publish date: 2021/01/06
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Introduction
Psoriasis is a chronic autoimmune inflammatory disease, the prevalence of which is 1–3% in the Polish population. Genome testing using single nucleotide polymorphisms revealed more than 50 regions associated with the risk of psoriasis, and most of these genes are associated with the immune system.

Aim
To assess the presence of PSEN1 subunits of the γ-secretase gene polymorphisms in patients with psoriasis and comparison of results with a healthy control group.

Material and methods
We used polymerase chain reaction – restriction fragment length polymorphism (PCR RFLP) method to assess polymorphisms. The starting material for analysis was peripheral blood obtained from the patient.

Results
PSEN1a-positivity was found in 2/52 (2.78%) of patients with psoriasis and 1/36 (3.85%) of healthy controls. PSEN1b positivity was seen in 3/52 (5.77%) of patients with psoriasis and 1/36 (3.85%) of control individuals. Only 3 patients with psoriasis but none of healthy volunteers had a presence of PSEN1c. Four patients were excluded from further statistical analysis.

Conclusions
We have not shown a relationship between PSEN1 polymorphism and the clinical occurrence of psoriasis but now we start the assessment of other subunits of the γ-secretase gene – PSENEN and NCSTN.

keywords:

γ-secretase, PSEN1, psoriasis vulgaris
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