Objective: The objective was to investigate the prevalence of the Epstein-Barr virus (EBV) and its association with human papilloma virus (HPV) detection, clinicopathological features, and the severity of recurrent respiratory papillomatosis (RRP).
Methods: Cases of juvenile recurrent respiratory papillomatosis (JRRP) (n = 36) and adult recurrent respiratory papillomatosis (ARRP) (n = 44) were collected retrospectively and subdivided into low- and high-risk severity groups based on the Derkay score. We performed HPV detection and genotyping using a reverse hybridization protocol and investigated the presence of EBV by polymerase chain reaction (PCR) and in situ hybridization. CD21 levels were accessed by immunohistochemistry.
Results: All samples were HPV-positive, including 49 cases of HPV 6, 26 cases of HPV 11, four cases of HPV 6 and 11 coinfections, and one case of HPV 16. EBV-DNA was detected in nine samples by PCR, although none of the cases were positive by means of in situ hybridization. CD21 immunoexpression was not statistically associated with any of the variables analyzed. HPV 6 detection was significantly higher in ARRP cases (P = 0.03), whereas HPV 11 was more prevalent in JRRP cases (P = 0.02) and was even more prevalent in JRRP cases of greater severity (Derkay laryngoscopic scale ≥20) (P = 0.04).
Conclusion: The presence of EBV does not seem to play an important role in the progression/severity of RRP.
Level Of Evidence: 4 Laryngoscope, 130:E611-E618, 2020.
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http://dx.doi.org/10.1002/lary.28465 | DOI Listing |
Environ Res
December 2024
University of Toronto, Toronto, ON, Canada; The Hospital for Sick Children, Toronto, ON, Canada. Electronic address:
Introduction: Throughout the perinatal period children are exposed to complex mixtures, including indoor chemicals such as phthalates, and biological agents. However, few studies focus on interactions between early-life co-exposures to shed light on how co-exposures modify their individual effects. Therefore, our study aims to assess whether early-life exposure to pets and related biological agents, namely pet allergens and endotoxin, modifies the association between di-(2-ethylhexyl) phthalate (DEHP) and asthma and wheeze in preschoolers to gain insight into interactions.
View Article and Find Full Text PDFBackground: Recent biomedical research has shown the unusual, multisystem effects of coronavirus disease 2019 in humans. One specific sequela of a primary severe acute respiratory syndrome coronavirus 2 infection is the reactivation of latent viruses in various tissues, such as Epstein-Barr virus. Epstein-Barr virus has been identified in many inflammatory gastrointestinal lesions, such as microscopic gastritides and colitides.
View Article and Find Full Text PDFRespir Med
December 2024
New York City Health & Hospitals, Woodhull; NYU Grossman School of Medicine, Division of Pulmonary Medicine, New York City Health and Hospitals, Woodhull, 760 Broadway, 8(th) Floor, Brooklyn, NY 11206, USA. Electronic address:
Mounier-Kuhn syndrome (MKS) or tracheobronchomegaly is an uncommon disease of the central airways. It is characterized by pathological dilatation of the trachea and main bronchi and inevitably leads to recurrent respiratory infections, bronchiectasis, hospitalizations, and results in considerable morbidity and mortality. Despite numerous case reports, there is a shortage of evidence on clinical outcomes and limited data on interventions, thus presenting a significant gap in the literature.
View Article and Find Full Text PDFAnn Hematol
December 2024
Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan.
Dasatinib, a second-generation tyrosine kinase inhibitor, has been reported to have immunomodulatory effects. Epstein-Barr virus (EBV)-associated lymphoproliferative disorders (EBV-LPD) occur in immunocompromised patients, such as those receiving methotrexate or other immunosuppressive drugs or after allogenic transplantation. EBV-LPD is also reported to be a rare side effect in patients receiving long-term dasatinib or imatinib.
View Article and Find Full Text PDFClinics (Sao Paulo)
December 2024
Department of Pulmonary Diseases, Gansu Provincial Hospital of Traditional Chinese Medicine, Gansu, PR China. Electronic address:
Background: Chronic Obstructive Pulmonary Disease (COPD) is a common chronic respiratory disease with a long course and recurrent symptoms, seriously affecting patients' quality of life.
Objectives: This study aimed to explore the interventional value of eight-section brocade exercises in combination with comprehensive measures of the physical function status of patients with COPD.
Method: This is a retrospective study.
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