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"ABSTRAKLatar Belakang: Asma alergi merupakan salah satu jenis fenotipe asma yang terbanyak, ditandai dengan adanya sensitisasi terhadap alergen lingkungan. Pada asma alergi terjadi respons inflamasi tipe 2 yang akan menghasilkan periostin yang dapat dideteksi dalam darah. Salah satu faktor yang mempengaruhi keterkontrolan asma adalah paparan alergen yang dapat bervariasi bergantung pada pola musim. Wilayah Indonesia sebagai benua maritim memiliki dua musim (hujan dan kemarau) berbeda dengan wilayah lain yang memiliki empat musim. Tujuan: Penelitian ini bertujuan untuk melihat perbedaan kadar periostin serum pada asma alergi terkontrol dan tidak terkontrol. Metode: Penelitian ini merupakan penelitian potong lintang dengan subjek penelitian adalah pasien asma alergi yang berobat ke poliklinik divisi Alergi Imunologi Klinik Rumah Sakit Dr Cipto Mangunkusumo bulan Januari-April 2017. Keterkontrolan asma dinilai dengan skor Tes Kontrol Asma sementara periostin serum digunakan sebagai penanda proses inflamasi Th2. Hasil: Dari 80 pasien asma alergi didapatkan rerata usia 39,7 tahun dengan proporsi perempuan lebih banyak (76%). Sebagian besar pasien memiliki riwayat rinitis alergi (73,8%) dan riwayat asma dalam keluarga (71%). Tungau debu rumah merupakan jenis alergen yang banyak memberikan sensitisasi. Kadar periostin serum pada subjek yang tidak terkontrol tidak berbeda dengan subjek yang terkontrol (209,78 ng/mL vs 627,66 ng/mL, p = 0,424) Simpulan: Tidak terdapat perbedaan kadar periostin pada kelompok asma alergi terkontrol dan tidak terkontrol.

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ABSTRACTBackground: Allergic asthma is the most common asthma phenotype, defined by the presence of sensitization to environmental allergens. In allergic asthma, following allergen exposure there will be an activation of T2-type inflammation producing periostin that can be detected from blood. Many factors can influence asthma control, including allergen exposure, which may vary greatly with climatic and seasonal changes. The Indonesia region as the Maritime Continent is characterized by a wet and a dry season which is different from other regions with four seasons. Objective: To see the difference of serum periostin level in uncontrolled and controlled allergic asthma. Methods: This is a cross sectional study using samples from allergic asthma patients who went to Allergy and Clinical Immunology Clinic, Dr. Cipto Mangunkusumo Hospital in January to April 2017. Asthma control was assessed clinically by using Asthma Control Test, while serum periostin was used as biological markers reflecting Th2 inflammation. Results: From 80 allergic asthma patients, the average of age was 39.7 years old with a greater proportion of women (76%). Most of the subjects had history of allergic rhinitis (73.8%) and positive family history of asthma (71%). House dust mites were the most common cause of sensitization. Serum periostin level in uncontrolled allergic asthma was not different from those in controlled allergic asthma (209,78 ng/mL vs 627,66 ng/mL, p = 0,424). Conclusions: There was no difference in the level of serum periostin in controlled and uncontrolled allergic asthma."

"House dust mites (HDM) are an important inhalant allergen in allergic asthma. However, molecular diagnostic study of specific IgE to HDM allergens has not been done in Indonesia. in addition, the association of quantitative specific IgE measurement with asthma severity has not been investigated. This study aimed to investigate difference of serum quantitative specific IgE levels induced by Dermatophagoides (D)."

"Latar belakang: Tungau debu rumah TDR merupakan alergen hirup yang penting pada asma alergik. Namun, penelitian diagnostik molekuler menggunakan Imunoglobulin E IgE spesifik akibat sensitisasi alergen TDR dihubungkan dengan derajat keparahan asma alergik belum pernah dilakukan di Indonesia.Tujuan: Mengetahui perbedaan kadar IgE spesifik serum kuantitatif akibat sensitisasi alergen Dermatophagoides D. pteronyssinus, D. farinae dan Blomia B. tropicalis pada asma alergik intermiten dan persisten.Metode: Desain penelitian potong lintang pada pasien asma alergik dewasa yang diundang untuk pemeriksaan IgE spesifik serum dan merupakan bagian dari penelitian payung di Divisi Alergi dan Imunologi Klinik, RS Cipto Mangunkusumo. Derajat keparahan asma ditentukan berdasarkan kriteria Global Initiative on Asthma GINA 2015 dan dikelompokkan menjadi intermiten dan persisten. Pemeriksaan IgE spesifik serum kuantitatif menggunakan metode multiple allergosorbent test Polycheck Allergy, Biocheck GmbH, Munster, Germany . Alergen TDR yang diperiksa adalah D. pteronyssinus, D. farinae, dan B. tropicalis. Perbedaan antara dua kelompok dianalisis dengan uji Mann-Whitney.Hasil: Sebanyak 87 subyek dilibatkan dalam penelitian ini; 69 79,3 subyek adalah perempuan. Rerata usia pasien adalah 40,2 tahun. Enam puluh tiga 72,4 pasien menderita asma dan rinitis alergik. Sebanyak 58 66,7 pasien asma persisten. Gambaran sensitisasi alergen TDR adalah 62,1 D. farinae; 51,7 D. pteronyssinus dan 48,3 B.tropicalis. Median kadar IgE spesifik secara bermakna lebih tinggi pada asma persisten dibandingkan asma intermiten untuk alergen D. farinae 1,30 vs. 0,0 kU/L; p=0,024 dan B. tropicalis 0,57 vs. 0,0 kU/L; p=0,015 . Kadar IgE spesifik D. pteronyssinus lebih tinggi pada asma persisten dibandingkan intermiten 0,67 vs. 0,00 kU/L; p=0,066.Kesimpulan:Gambaran sensitisasi alergen secara berurutan didapatkan D. farinae 62,1, D. pteronyssinus 51,7 dan B. tropicalis 48,3 . Kadar IgE spesifik akibat sensitisasi D. farinae dan B. tropicalis lebih tinggi secara bermakna pada pasien asma persisten dibandingkan asma intermiten. Kadar IgE spesifik akibat sensitisasi D. pteronyssinus lebih tinggi pada pasien asma persisten dibandingkan asma intermiten, tetapi secara statistik tidak bermakna.

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Introduction House dust mites HDM are an important inhalant allergen in allergic asthma. However, molecular diagnostic study using specific IgE level induced by HDM allergens associated with asthma severity has not been done in Indonesia.Objective To investigate the difference of serum quantitative specific IgE levels induced by Dermatophagoides D. pteronyssinus, D. farinae and Blomia B. tropicalis sensitization in intermittent and persistent allergic asthma.Method This was a cross sectional study on adult allergic asthma patients who were invited for serum specific IgE testing. This study was a part of a larger research within the Division of Allergy and Immunology, Cipto Mangunkusumo Hospital. Asthma severity was defined based on Global Initiative on Asthma GINA 2015 criteria and were grouped as intermittent or persistent. Quantitative specific IgE testing was done on blood serum using a multiple allergosorbent test Polycheck Allergy, Biocheck GmbH, Munster, Germany . The HDM allergens tested were D. pteronyssinus, D. farinae, and Blomia tropicalis. Difference between two groups were analyze using Mann Whitney test.Results A total of 87 subjects were enrolled in this study 69 79.3 were women. Mean patients rsquo age was 40, 2 years. Sixty three 72.4 patients had asthma and allergic rhinitis. Fifty eight 66.7 patients were classified as persistent asthma. The prevalence of sensitization was 62.1 D. farinae, 51.7 D. pteronyssinus, and 48.3 Blomia tropicalis. The median of specific IgE levels is significantly higher in persistent asthma compares to intermittent asthma induced by D. farinae median 1.30 vs. 0.0 kU L p 0.024 and B. tropicalis median 0.57 vs. 0.0 kU L p 0.015 sensitization. Level of Specific IgE D. pteronyssinus is also to be higher in persistent asthma than the level measured in intermittent asthma 0.67 vs. 0.00 kU L p 0.066.Conclusion Sensitization of HDM allergens is shown to be highest for D. farinae 62.1 , followed by D. pteronyssinus 51, 7 and Blomia tropicalis 48, 3 . Specific IgE level induced by D. farinae and Blomia tropicalis sensitization are significantly higher in patients with persistent compares to intermittent asthma, whereas specific IgE level induced by D. pteronyssinus sensitization to be higher in persistent asthma although not statistically significant."