1
|
Fluhr JW, Stevanovic K, Joshi P, Bergmann KC, Herzog LS, Alwaheed Y, Al Sowaidi S, Zuberbier T. Skin Physiology, Mucosal Functions, and Symptoms Are Modulated by Grass Pollen and Ozone Double Exposure in Allergic Patients. Skin Pharmacol Physiol 2023; 36:195-204. [PMID: 36927995 DOI: 10.1159/000530115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
INTRODUCTION Along with climate changes, we see an increase in allergic symptoms and the number of pollen-allergic patients in many countries. Increased allergic symptoms are associated with an elevated ozone exposure which may be linked by impaired epithelial barrier function. This study aimed to quantify the clinical effect of ozone and pollen double exposure (DE). We tested whether ozone impairs barrier-related skin physiology and mucosal functions under DE with pollen in grass pollen-allergic patients versus healthy controls. METHODS This case-control study included 8 grass pollen-allergic patients and 8 non-allergic healthy subjects exposed to grass pollen and ozone in the GA2LEN pollen chamber, comparing shorter and longer DE duration. Non-invasive skin physiological parameters were assessed, including stratum corneum hydration, skin redness, surface pH, and basal transepidermal water loss as a parameter for epidermal barrier function. The subjects' general well-being, bronchial, nasal, and ocular symptoms were documented. RESULTS Skin physiology tests revealed that DE in allergic patients deteriorates the epidermal barrier function and increases the surface pH and skin redness. DE significantly induced nasal secretion in pollen-allergic versus healthy subjects, which was more pronounced with longer DE. The general well-being was significantly impaired under DE versus pollen or ozone alone, with a negative influence of DE duration. No relevant bronchial symptoms were recorded. CONCLUSION Skin physiology and nasal mucosal symptoms are negatively affected by ozone and grass pollen DE in allergic patients. The negative effects showed, in some parameters, a dose (time)-response relationship. The pH can be regarded as a possible modulatory mechanism.
Collapse
Affiliation(s)
- Joachim W Fluhr
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Katarina Stevanovic
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Priyanka Joshi
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Karl-Christian Bergmann
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Leonie S Herzog
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Yasmeen Alwaheed
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Shirina Al Sowaidi
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Torsten Zuberbier
- Charité - Universitätsmedizin Berlin, Institute of Allergology, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| |
Collapse
|
2
|
Shehab A, Elnour A, Al Sowaidi S, Abdulle A. Continuing Professional Development Evaluation: Two Rapid Review Courses inNephrology and Rheumatology. Oman Med J 2012; 27:402-7. [DOI: 10.5001/omj.2012.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/03/2012] [Indexed: 11/03/2022] Open
|