Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model
ObjectivesAllergic rhinitis (AR) is a chronic upper respiratory tract disease that inflames the mucous membranes of the nose and occurs when circulating inflammatory cells including eosinophils and basophils migrate to and accumulate in the inflammation area by passing through the interstitium and c...
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| Format: | Article |
| Language: | English |
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Korean Society of Otorhinolaryngology-Head and Neck Surgery
2014-06-01
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| Series: | Clinical and Experimental Otorhinolaryngology |
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| Online Access: | http://www.e-ceo.org/upload/pdf/ceo-7-106.pdf |
| _version_ | 1819263232759562240 |
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| author | Mehmet Ozgür Avincsal Seda Ozbal Ahmet Omer Ikiz Cetin Pekcetin Enis Alpin Güneri |
| author_facet | Mehmet Ozgür Avincsal Seda Ozbal Ahmet Omer Ikiz Cetin Pekcetin Enis Alpin Güneri |
| author_sort | Mehmet Ozgür Avincsal |
| collection | DOAJ |
| description | ObjectivesAllergic rhinitis (AR) is a chronic upper respiratory tract disease that inflames the mucous membranes of the nose and occurs when circulating inflammatory cells including eosinophils and basophils migrate to and accumulate in the inflammation area by passing through the interstitium and capillary walls. To pass through these barriers, the inflammatory cells degrade extracellular matrix proteins. Matrix metalloproteinases (MMPs) released by inflammatory cells mediate the degradation of these proteins. MMPs have synthetic inhibitors and doxycycline, a tetracycline antibiotic, inhibits MMPs. This study investigated the efficiency of intranasal doxycycline in decreasing the symptoms and inflammatory cell infiltration in an animal model of AR.MethodsAR was created in female Wistar rats by repeated intranasal challenge with ovalbumin by intraperitoneal injection. For 15 days, topical intranasal doxycycline was administered one hour before ovalbumin administration. Following intranasal administration, nasal symptoms were scored and the nasal mucosae of all rats were evaluated histopathologically. To investigate tissue changes, hematoxyline-eosin and Alcian blue/periodic acid Schiff stains were used. As well, cilia loss, goblet cell changes, vascular congestion, vascular proliferation, inflammatory cell infiltration, eosinophil infiltration and the degree of hypertrophy in chondrocytes were evaluated with light microscopy.ResultsTypical symptoms of AR were decreased by intranasal doxycycline administration. These effects were stable after repeated intranasal ovalbumin administration. Histological evaluation of doxycycline treated rats did not reveal typical inflammatory changes associated with AR.ConclusionMMPs may have crucial functions in AR and topical intranasal doxycycline, which decreases inflammatory cell infiltration, may offer an alternative therapy for AR. |
| first_indexed | 2024-12-23T20:10:19Z |
| format | Article |
| id | doaj.art-556381d7e6634c3e87b213acad44a398 |
| institution | Directory Open Access Journal |
| issn | 1976-8710 2005-0720 |
| language | English |
| last_indexed | 2024-12-23T20:10:19Z |
| publishDate | 2014-06-01 |
| publisher | Korean Society of Otorhinolaryngology-Head and Neck Surgery |
| record_format | Article |
| series | Clinical and Experimental Otorhinolaryngology |
| spelling | doaj.art-556381d7e6634c3e87b213acad44a3982022-12-21T17:32:49ZengKorean Society of Otorhinolaryngology-Head and Neck SurgeryClinical and Experimental Otorhinolaryngology1976-87102005-07202014-06-017210611110.3342/ceo.2014.7.2.106283Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis ModelMehmet Ozgür Avincsal0Seda Ozbal1Ahmet Omer Ikiz2Cetin Pekcetin3Enis Alpin Güneri4Department of Otorhinolaryngology-Head and Neck Surgery, Private Gazi Hospital, Izmir, Turkey.Department of Histology and Embriyology, Dokuz Eylul University School of Medicine, Izmir, Turkey.Department of Otorhinolaryngology-Head and Neck Surgery, Dokuz Eylul University School of Medicine, Izmir, Turkey.Department of Histology and Embriyology, Dokuz Eylul University School of Medicine, Izmir, Turkey.Department of Otorhinolaryngology-Head and Neck Surgery, Dokuz Eylul University School of Medicine, Izmir, Turkey.ObjectivesAllergic rhinitis (AR) is a chronic upper respiratory tract disease that inflames the mucous membranes of the nose and occurs when circulating inflammatory cells including eosinophils and basophils migrate to and accumulate in the inflammation area by passing through the interstitium and capillary walls. To pass through these barriers, the inflammatory cells degrade extracellular matrix proteins. Matrix metalloproteinases (MMPs) released by inflammatory cells mediate the degradation of these proteins. MMPs have synthetic inhibitors and doxycycline, a tetracycline antibiotic, inhibits MMPs. This study investigated the efficiency of intranasal doxycycline in decreasing the symptoms and inflammatory cell infiltration in an animal model of AR.MethodsAR was created in female Wistar rats by repeated intranasal challenge with ovalbumin by intraperitoneal injection. For 15 days, topical intranasal doxycycline was administered one hour before ovalbumin administration. Following intranasal administration, nasal symptoms were scored and the nasal mucosae of all rats were evaluated histopathologically. To investigate tissue changes, hematoxyline-eosin and Alcian blue/periodic acid Schiff stains were used. As well, cilia loss, goblet cell changes, vascular congestion, vascular proliferation, inflammatory cell infiltration, eosinophil infiltration and the degree of hypertrophy in chondrocytes were evaluated with light microscopy.ResultsTypical symptoms of AR were decreased by intranasal doxycycline administration. These effects were stable after repeated intranasal ovalbumin administration. Histological evaluation of doxycycline treated rats did not reveal typical inflammatory changes associated with AR.ConclusionMMPs may have crucial functions in AR and topical intranasal doxycycline, which decreases inflammatory cell infiltration, may offer an alternative therapy for AR.http://www.e-ceo.org/upload/pdf/ceo-7-106.pdfDoxycyclineAllergic rhinitisMatrix metalloproteinase inhibitors |
| spellingShingle | Mehmet Ozgür Avincsal Seda Ozbal Ahmet Omer Ikiz Cetin Pekcetin Enis Alpin Güneri Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model Clinical and Experimental Otorhinolaryngology Doxycycline Allergic rhinitis Matrix metalloproteinase inhibitors |
| title | Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model |
| title_full | Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model |
| title_fullStr | Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model |
| title_full_unstemmed | Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model |
| title_short | Effects of Topical Intranasal Doxycycline Treatment in the Rat Allergic Rhinitis Model |
| title_sort | effects of topical intranasal doxycycline treatment in the rat allergic rhinitis model |
| topic | Doxycycline Allergic rhinitis Matrix metalloproteinase inhibitors |
| url | http://www.e-ceo.org/upload/pdf/ceo-7-106.pdf |
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