Journals / Türk Oftalmoloji Dergisi / 2012 / Cilt: 42 - Sayı: 6

Development of an allergic conjunctivitis model in mice

Farelerde deneysel alerjik konjonktivit modeli oluşturulması

Pages
418–422
Publication Date
2022-11-05
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Mean mast cell density in cells/mm2, infiltrating the subconjunctival tissue was significantly high in Group 1 (allergy group, 23.17±7.46, p

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To develop an animal model that simulates human allergic conjunctivitis to understand the physiopathogenesis of allergic diseases and for developing novel therapeutic interventions.
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Key Findings & Data:Material and Method: BALB/c mice (12 males) were divided into two groups each comprised of six mice.
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Conclusion & Impact:Mean mast cell density in cells/mm2, infiltrating the subconjunctival tissue was significantly high in Group 1 (allergy group, 23.17±7.46, p
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To develop an animal model that simulates human allergic conjunctivitis to understand the physiopathogenesis of allergic diseases and for developing novel therapeutic interventions. Material and Method: BALB/c mice (12 males) were divided into two groups each comprised of six mice. For sensitization, on the 1st and 8th days, a 0.2 ml mixed solution, adjusted to a concentration to 5mg/ml of ovalbumin (OVA) and 15mg/ml of aluminium hydroxide, was administered intraperitoneally to the mice in Group 1 and 0.2 ml saline solution to the mice in Group 2. To induce experimental allergic conjunctivitis, an antigen challenge was made on days 15 and 18, using an OVA solution (5mg/ml) instilled into both eyes of the mice in Group 1; while the mice in Group 2 received Human Balanced Salt Solution instead of OVA. For the clinical evaluation, the occurrence of conjunctival and palpebral oedema, conjunctival hyperaemia, and lacrimation were observed. For the histological examination, eyeballs, eyelids, and lacrimal glands were removed and prepared according to the routine processing method of the tissue laboratory. Immunohistochemical examination was made with mast cell tryptase using the labeled streptavidin–biotin amplification method and 3.3 ́-diaminobenzidine, in addition to hematoxylin-eosin (HE), and toluidine blue (TB) staining. Results: Evident conjunctival oedema, palpebral oedema, conjunctival hyperaemia, and lacrimation were observed in Group 1. Mean mast cell density in cells/mm2, infiltrating the subconjunctival tissue was significantly high in Group 1 (allergy group, 23.17±7.46, p

Özet

Amaç: Alerjik hastalıkların fizyopatogenezinin daha iyi anlaşılması ve yeni ilaçların geliştirilmesi için yapılacak çalışmalarda kullanılmak üzere insandaki alerjik konjonktiviti simüle eden bir hayvan modeli geliştirmek. Gereç ve Yöntem: On iki erkek Balb/c fare, her birinde 6 fare bulunan 2 gruba ayrıldı. Duyarlılaştırma için, Grup 1’deki farelere, birinci ve sekizinci günlerde, 5mg/ml ovalbümin (OVA) ve 15mg/ml aliminyum hidroksit karışımının 0,2 ml’lik solüsyonu; Grup 2’deki farelere ise 0.2 ml’lik salin solüsyonu intraperitoneal olarak injekte edildi. Deneysel alerjik konjonktiviti indüklemek için, Grup 1’deki farelerin gözlerine OVA solüsyonu (5mg/ml) ile 15. ve 18. günlerde antijen uyarımı (challenge) yapılırken; Grup 2’deki farelerin gözlerine ise Human Balanced Salt Solution damlatıldı. Klinik inceleme için konjonktival ödem, palpebral ödem, konjonktival hiperemi ve sulanma değerlendirildi. Histopatolojik inceleme için eksize edilen göz küreleri, göz kapakları ve lakrimal glandları, doku laboratuvarının rutin proçesine uygun olarak hazırlandı. Hematoksilen-Eozin ve Toluidin Blue boyamalarına ek olarak Mast-hücre triptaz ile Labeled Streptavidin–Biotin amplifikasyon yöntemi ve 3,3 ́- diaminobenzidine kullanılarak immünohistokimyasal değerlendirme yapıldı. Sonuçlar: Grup 1’deki farelerin gözlerinde belirgin olarak palpebral ve konjonktival ödem oluştuğu, sulanma ve konjonktival hiperemi ortaya çıktığı gözlemlendi. Grup 2 (5,58±3,12) ile karşılaştırıldığında, subkonjonktival dokuyu infiltre eden ortalama mast hücre yoğunluğu hücre/mm2 olarak, anlamlı olarak Grup 1’de (alerji grubu, 23,17±7,46, p

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Cite This Article

ÇAKMAK, H., KOCATÜRK, Ö., KOCATÜRK, T., DAYANIR, V., METEOĞLU, İ., KAPLAN, A. (2022). Development of an allergic conjunctivitis model in mice. Türk Oftalmoloji Dergisi, Cilt: 42 - Sayı: 6, 418–422. https://ajindex.com/articles/638297

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