GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Decreased Expression of E-cadherin and ZO-1 in the Nasal Mucosa of Patients with Allergic Rhinitis: Altered Regulation of E-cadherin by IL-4, IL-5, and TNF-alpha
    SAGE Publications ; 2016
    In:  American Journal of Rhinology & Allergy Vol. 30, No. 3 ( 2016-05), p. 173-178
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 30, No. 3 ( 2016-05), p. 173-178
    Abstract: Allergic rhinitis is a chronic nasal inflammatory disease mediated by an immunoglobulin E mediated process to environmental allergens. Although atopy is a potent predisposing risk factor for allergic rhinitis, local tissue susceptibilities are inevitable for disease expression. The nasal epithelium maintains tissue homeostasis by providing a physical barrier controlled by epithelial junctional proteins. However, the expression of epithelial junctional proteins has not been studied in patients with allergic rhinitis. We sought to elucidate the expression and the regulation of epithelial junctional proteins in the nasal epithelium of patients with allergic rhinitis. Methods The expression of E-cadherin and zonula occludens (ZO) 1 in epithelium of turbinate was measured by using real-time polymerase chain reaction, Western blot, and immunohistochemical assays, and was compared between control subjects and patients with allergic rhinitis. In addition, the expression levels of E-cadherin and ZO-1 were determined in cultured epithelial cell treated with interleukin (IL) 4, IL-5, tumor necrosis factor (TNF) alpha, and interferon gamma. Results The expression and the immunoreactivity of E-cadherin and ZO-1 were decreased in the nasal epithelium of patients with allergic rhinitis. Interestingly, the stimulation of cultured epithelial cells with IL-4, IL-5, and TNF-alpha resulted in downregulation of E-cadherin expression only in cultured epithelial cells of patients with allergic rhinitis, whereas E-cadherin expression in cultured epithelial cells of controls was not affected by stimulation with the same panel of cytokines. Conclusion Decreased expression of epithelial junctional proteins was found in patients with allergic rhinitis. The disruption of epithelial integrity by IL-4, IL-5, and TNF-alpha in vitro indicated a possible role for these cytokines in the pathogenesis of patients with allergic rhinitis.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2016.30.4295
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Analysis of gene expression profiles of normal human nasal mucosa and nasal polyp tissues by SAGE
    Elsevier BV ; 2006
    In:  Journal of Allergy and Clinical Immunology Vol. 118, No. 1 ( 2006-07), p. 134-142
    Details
    In: Journal of Allergy and Clinical Immunology, Elsevier BV, Vol. 118, No. 1 ( 2006-07), p. 134-142
    Type of Medium: Online Resource
    ISSN: 0091-6749
    URL: Article
    DOI: 10.1016/j.jaci.2006.02.048
    RVK:
    XA 52000
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2006
    detail.hit.zdb_id: 2006613-2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    The Expression of Adiponectin Receptor is Altered in Mild and Moderate/Severe Persistent Allergic Nasal Mucosa
    SAGE Publications ; 2011
    In:  American Journal of Rhinology & Allergy Vol. 25, No. 5 ( 2011-09), p. 318-322
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 25, No. 5 ( 2011-09), p. 318-322
    Abstract: Adiponectin, one of the adipokines, has been implicated in the inflammatory process in patients with allergic rhinitis. The level of adiponectin is affected by immunotherapy. Considering the fact that adiponectin receptors (AdipoRs) mediate intracellular signaling events in response to the binding of adiponectin, the role of AdipoRs in healthy and allergic nasal mucosa should be determined. This study investigates the level of expression and distribution pattern of AdipoR1 and AdipoR2 in healthy, mild, and moderate/severe persistent allergic nasal mucosa to understand the role of adiponectin in allergic rhinitis. Methods The level of expression and distribution pattern of AdipoR1 and AdipoR2 were evaluated in healthy, mild, and moderate/severe persistent allergic nasal mucosa, using semiquantitative reverse-transcriptase–polymerase chain reaction (RT-PCR), immunohistochemistry, and Western blot analysis. Results AdipoR1 was expressed in healthy, mild, and moderate/severe persistent allergic nasal mucosa where it was commonly localized to the vascular endothelium. However, AdipoR2 was not expressed in any samples of nasal mucosa tested in the present study. Semiquantitative RT-PCR and Western blot analysis showed that the level of expression of AdipoR1 mRNA and protein was decreased in mild and moderate/severe persistent allergic nasal mucosa in comparison with healthy nasal mucosa, but not significantly different between mild and moderate/severe persistent allergic nasal mucosa. Conclusion These results indicate that AdipoR1 may play an important role in the pathogenesis of allergic nasal mucosa, suggesting a role for AdipoR1 in vascular dysfunction in mild and moderate/severe persistent allergic nasal mucosa.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2011.25.3651
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2011
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Endogenous Production of Hydrogen Sulfide in Human Sinus Mucosa and its Expression Levels are Altered in Patients with Chronic Rhinosinusitis with and without Nasal Polyps
    SAGE Publications ; 2014
    In:  American Journal of Rhinology & Allergy Vol. 28, No. 1 ( 2014-01), p. 12-19
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 28, No. 1 ( 2014-01), p. 12-19
    Abstract: Chronic rhinosinusitis with nasal polyps (CRSwNPs) or CRS without nasal polyps (CRSsNPs) is characterized by persistent inflammation of sinonasal mucosa. No one causative factor fully explains for the pathological manifestations of CRS. Endogenous hydrogen sulfide (H 2 S) has been shown to participate in inflammatory diseases, functioning as an inflammatory mediator in various organs. We analyzed the contents and synthesis activity of H 2 S, the expression and distribution pattern of H 2 S-generating enzymes, cystathione β-synthase (CBS), and cystathione γ-lyase (CSE) in CRSwNPs and CRSsNPs. The effects of H 2 S on the expression of CRS-relevant cytokines and the effects of cytokines on the expression of CBS and CSE were assessed in an in vitro experiment. Methods The contents and synthesis activity of H 2 S and the expression and distribution pattern of CBS and CSE in sinus mucosa were evaluated using spectrophotometry, real-time polymerase chain reaction, Western blot, and immunohistochemistry. Cultured epithelial cells were used to elucidate the effects of H 2 S donor, sodium hydrosulfide (NaHS), on the expression of CRS-relevant cytokines and the effects of cytokines on H 2 S-generating enzymes expression. Results The contents and synthesis activity of H 2 S were increased in CRSwNPs and CRSsNPs. CBS and CSE were localized to the superficial epithelium and submucosal glands, but CSE was also found in vascular endothelium. N S induced increased expression of IL-4, IL-5, interferon γ, and TNF-α. CBS and CSE expression in cultured cells was up-regulated by CRS-relevant cytokines. Conclusion H 2 S levels are increased in CRS, contributing to increased production of cytokines. These results suggest that H 2 S may function as inflammatory mediator in CRS.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2014.28.3972
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    The impacts of open-mouth breathing on upper airway space in obstructive sleep apnea: 3-D MDCT analysis
    Springer Science and Business Media LLC ; 2011
    In:  European Archives of Oto-Rhino-Laryngology Vol. 268, No. 4 ( 2011-4), p. 533-539
    Details
    In: European Archives of Oto-Rhino-Laryngology, Springer Science and Business Media LLC, Vol. 268, No. 4 ( 2011-4), p. 533-539
    Type of Medium: Online Resource
    ISSN: 0937-4477 , 1434-4726
    URL: Article
    DOI: 10.1007/s00405-010-1397-6
    RVK:
    XA 26650
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2011
    detail.hit.zdb_id: 1459042-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Expression of Extracellular Matrix Metalloproteinase Inducer in Nasal Polyps
    SAGE Publications ; 2010
    In:  American Journal of Rhinology & Allergy Vol. 24, No. 6 ( 2010-11), p. e127-e131
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 24, No. 6 ( 2010-11), p. e127-e131
    Abstract: Extracellular matrix metalloproteinase inducer (EMMPRIN) is a transmembrane glycoprotein that belongs to the immunoglobulin superfamily. The presence of EMMPRIN in nontumoral tissues suggests a role in other physiological and pathological situations, which may be associated with increased matrix metalloproteinase expression. The purpose of this study was to investigate the expression of EMMPRIN mRNA (OMIM *606080) and to localize the EMMPRIN protein in nasal polyps and healthy nasal mucosa. Methods The expression of EMMPRIN was investigated in the nasal polyps of 10 patients undergoing endonasal sinus surgery and compared with nasal mucosal samples obtained from 10 healthy controls. EMMPRIN mRNA was extracted from the tissues, and then a reverse transcription–polymerase chain reaction was performed. Western blot analysis was used to analyze differences in the levels of expression of EMMPRIN protein between patients with nasal polyps and healthy controls, and the EMMPRIN protein was localized in immunohistochemical staining and quantitative analysis of immunopositivity. Results The levels of expression of EMMPRIN mRNA and protein were significantly increased in patients with nasal polyps compared with healthy controls. EMMPRIN protein was expressed in the epithelium and infiltrating inflammatory cells of nasal polyps and the healthy nasal mucosa. The percentages of the immune-stained area and the number of EMMPRIN-immunopositive inflammatory cells per millimeter were significantly elevated in nasal polyps compared with controls. Conclusion EMMPRIN is expressed in nasal mucosa and in nasal polyps, and the level of EMMPRIN expression is increased in nasal polyps. These results suggest that the increased expression of EMMPRIN may play a role in the pathogenesis of nasal polyps.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2010.24.3503
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Overexpression of the Superoxide Anion and NADPH Oxidase Isoforms 1 and 4 (NOX1 and NOX4) in Allergic Nasal Mucosa
    SAGE Publications ; 2009
    In:  American Journal of Rhinology & Allergy Vol. 23, No. 4 ( 2009-07), p. 370-376
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 23, No. 4 ( 2009-07), p. 370-376
    Abstract: The purpose of this study was to investigate the expression and distribution of superoxide anion, NADPH oxidase (NOX)1, and NOX4 in healthy, allergic nasal mucosa and nasal polyps to evaluate the possible influence of oxidative stress on the development of allergic rhinitis and nasal polyps. Methods The expression and distribution of superoxide anion, NOX1 and NOX4 were evaluated in healthy and allergic nasal mucosa and nasal polyps, using dihydroethidium fluorescence, semiquantitative reverse transcriptase-polymerase chain reaction, immunohistochemistry, and Western blot. Results NOX1 and NOX4 were localized mainly in the epithelial layer, submucosal glands, vascular endothelium, and inflammatory cells in healthy and allergic nasal mucosa and nasal polyps. The cellular source that generated superoxide anion is also localized in the epithelial cells, submucosal glands, vascular endothelium, and inflammatory cells, demonstrating the similar sites of expression of NOX1 and NOX4 in healthy and allergic nasal mucosa and nasal polyps. NOX1 and NOX4 mRNA and proteins and superoxide anions had increased levels of expression in allergic nasal mucosa and nasal polyps compared with healthy nasal mucosa. Conclusions These results indicate that NOX1 and NOX4 may play an important role in reactive oxygen species production, contributing to the oxidative stress in allergic rhinitis and nasal polyp tissues.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2009.23.3340
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Up-Regulation of Heparanase in the Ethmoid Sinus Mucosa of Patients with Chronic Sinusitis
    SAGE Publications ; 2009
    In:  American Journal of Rhinology & Allergy Vol. 23, No. 2 ( 2009-03), p. 130-134
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 23, No. 2 ( 2009-03), p. 130-134
    Abstract: Heparanase (HPA) is known to be involved in tissue remodeling of various organs with inflammatory diseases. The aim of this study was to investigate the level of expression and the pattern of distribution of HPA in normal human sinus mucosa, inflammatory sinus mucosa, and nasal polyps to evaluate the possible effect of HPA on the tissue remodeling of chronic inflammatory sinus mucosa and nasal polyps. Methods Normal sinus mucosa was obtained from the ethmoid sinus during endoscopic reduction in 25 patients with blowout fractures. Inflammatory sinus mucosa and nasal polyps were obtained from 25 patients undergoing endoscopic sinus surgery for chronic sinusitis with nasal polyps. The levels of expression and the pattern of distribution of HPA were evaluated in normal human sinus mucosa, inflammatory sinus mucosa, and nasal polyps, using reverse transcriptase-polymerase chain reaction, immunohistochemical analysis, and Western blot analysis. Results HPA mRNA and protein were detected in inflammatory sinus mucosa and nasal polyps but not in normal sinus mucosa. HPA was mainly localized in the vascular endothelium, epithelium, submucosal glands, and inflammatory cells of inflammatory sinus mucosa. In nasal polyps, inflammatory cells and vascular endothelium showed immunopositivity in the entire portion, whereas glands and epithelial cells did not show positivity. Conclusion Our results indicate that HPA is not constitutively expressed in normal sinus mucosa and is upregulated in chronic inflammatory sinus mucosa and nasal polyps, suggesting that HPA may play an important role in the tissue remodeling in chronic sinusitis.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2009.23.3281
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Increased Expression of YKL-40 in Mild and Moderate/Severe Persistent Allergic Rhinitis and its Possible Contribution to Remodeling of Nasal Mucosa
    SAGE Publications ; 2013
    In:  American Journal of Rhinology & Allergy Vol. 27, No. 5 ( 2013-09), p. 372-380
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 27, No. 5 ( 2013-09), p. 372-380
    Abstract: Prominent expression of YKL-40 has been associated with pathological conditions characterized by tissue remodeling. We determined the expression level and distribution pattern of YKL-40 in allergic nasal mucosa and evaluated the effect of YKL-40 on the proliferation and migration of fibroblasts, the production of the mediators related to tissue remodeling, and collagen production. Additionally, the cytokine-driven regulation of YKL-40 expression was evaluated in cultured epithelial cells. Methods The expression of YKL-40 in normal, mild, and moderate/severe allergic nasal mucosa was evaluated using real-time polymerase chain reaction (PCR), Western blot, and immunohistochemistry. Fibroblast migration was observed using a scratch wound method, and proliferation was determined by the MTT methods. Expression of proteoglycans, transforming growth factor (TGF) beta1, MMP2, MMP9, TIMP1, TIMP2, and collagen concentration were analyzed in fibroblasts treated with YKL-40. The expression levels of YKL-40 in cultured epithelial cells were examined after stimulation with mediators including Th2 cytokines, interferon (IFN)gamma, and TNF-alpha with real-time PCR and ELISA. Results The expression of YKL-40 was up-regulated in allergic rhinitis and distributed in superficial epithelium, submucosal glands, and vascular endothelium, in addition to infiltrating cells. TGF-beta1, TIMP1, MMP9, and biglycan were up-regulated in fibroblasts on stimulation with YKL-40, accompanying increased proliferation and migration, and collagen production. IL-13, IFN-gamma, and TNF-alpha induced the increased production of YKL-40 in cultured epithelial cells. Conclusion YKL-40 is up-regulated in mild and moderate/severe persistent allergic rhinitis, and its expression can be regulated differentially by different cytokines, possibly contributing to the remodeling of nasal mucosa in allergic rhinitis.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2013.27.3941
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Increased Expression of High-Mobility Group Protein B1 in Chronic Rhinosinusitis
    SAGE Publications ; 2013
    In:  American Journal of Rhinology & Allergy Vol. 27, No. 4 ( 2013-07), p. 278-282
    Details
    In: American Journal of Rhinology & Allergy, SAGE Publications, Vol. 27, No. 4 ( 2013-07), p. 278-282
    Abstract: Chronic rhinosinusitis (CRS) is an inflammation of the sinonasal mucosa and many inflammatory cells and cytokines are involved in its pathogenesis. High-mobility group protein B1 (HMGB1) is a DNA-binding protein that has a proinflammatory function when secreted into extracellular space. The purpose of this study was to evaluate the expression of HMGB1 in paranasal sinus mucosa and to determine the difference of HMGB1 expression between CRS patients and normal controls. Methods Paranasal sinus mucosa was obtained from 10 patients with CRS and 10 patients without CRS. Semiquantitative reverse transcriptase–polymerase chain reaction (RT-PCR), real-time PCR and Western blot analysis were performed to detect mRNA and protein. Sections of the mucosa were immunostained for localization of HMGB1 and image analysis was performed. Results RT-PCR and real-time PCR showed that the expression level of HMGB1 mRNA was significantly increased in the tissues of patients with CRS compared with controls. Western blot analysis showed that the expression level of HMGB1 protein was significantly increased in the tissues of CRS. In immunohistochemical staining, the HMGB1 protein was expressed in epithelial cells and inflammatory cells and the expression intensity of HMGB1 protein was stronger in CRS. Conclusion HMGB1 is increased in the paranasal sinus mucosa of patients with CRS. These results suggest a possible contribution of HMGB1 in the pathophysiology of CRS.
    Type of Medium: Online Resource
    ISSN: 1945-8924 , 1945-8932
    URL: Article
    DOI: 10.2500/ajra.2013.27.3909
    RVK:
    XA 20278
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2554548-6
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...