OBJECTIVE: The objective of this study was to assess changes in salivary epidermal growth factor (EGF) in patients receiving radiation therapy to the head and neck and to determine whether salivary EGF levels correlate with the severity of radiation-induced oral mucositis. STUDY DESIGN: Thirteen patients and 18 control subjects were enrolled in the study. Saliva was collected before, during (weekly), and after radiation therapy. Salivary total protein (TP) and EGF concentrations were measured and correlated with the severity of oral mucositis. The variability in normalized EGF (ngEGF/mgTP) values and mucositis scores were analyzed with analysis of covariance, and the adjusted correlation coefficient was calculated. RESULTS: EGF levels decreased (P =.004), whereas TP levels increased over time (P =.039). A strong correlation was seen with decreasing normalized EGF values and more severe mucositis (P =. 0001). CONCLUSION: A strong negative correlation between normalized EGF and mucositis severity suggests a possible role for EGF in the progression of radiation-induced mucosal breakdown.
OBJECTIVE: The objective of this study was to assess changes in salivary epidermal growth factor (EGF) in patients receiving radiation therapy to the head and neck and to determine whether salivary EGF levels correlate with the severity of radiation-induced oral mucositis. STUDY DESIGN: Thirteen patients and 18 control subjects were enrolled in the study. Saliva was collected before, during (weekly), and after radiation therapy. Salivary total protein (TP) and EGF concentrations were measured and correlated with the severity of oral mucositis. The variability in normalized EGF (ngEGF/mgTP) values and mucositis scores were analyzed with analysis of covariance, and the adjusted correlation coefficient was calculated. RESULTS:EGF levels decreased (P =.004), whereas TP levels increased over time (P =.039). A strong correlation was seen with decreasing normalized EGF values and more severe mucositis (P =. 0001). CONCLUSION: A strong negative correlation between normalized EGF and mucositis severity suggests a possible role for EGF in the progression of radiation-induced mucosal breakdown.
Authors: Ana Gabriela Costa Normando; Camila Lopes Rocha; Isabela Porto de Toledo; Paulo Tadeu de Souza Figueiredo; Paula Elaine Diniz Dos Reis; Graziela De Luca Canto; Eliete Neves Silva Guerra Journal: Support Care Cancer Date: 2017-06-16 Impact factor: 3.603
Authors: Inger von Bültzingslöwen; Michael T Brennan; Fred K L Spijkervet; Richard Logan; Andrea Stringer; Judith E Raber-Durlacher; Dorothy Keefe Journal: Support Care Cancer Date: 2006-04-21 Impact factor: 3.603
Authors: Karolina Elżbieta Kaczor-Urbanowicz; Carmen Martin Carreras-Presas; Katri Aro; Michael Tu; Franklin Garcia-Godoy; David Tw Wong Journal: Exp Biol Med (Maywood) Date: 2016-12-08
Authors: L Fabris; S Berton; F Citron; S D'Andrea; I Segatto; M S Nicoloso; S Massarut; J Armenia; G Zafarana; S Rossi; C Ivan; T Perin; J S Vaidya; M Avanzo; M Roncadin; M Schiappacassi; R G Bristow; G Calin; G Baldassarre; B Belletti Journal: Oncogene Date: 2016-02-15 Impact factor: 9.867
Authors: Maria Greabu; Maurizio Battino; Maria Mohora; Alexandra Totan; Andreea Didilescu; Tudor Spinu; Cosmin Totan; Daniela Miricescu; Radu Radulescu Journal: J Med Life Date: 2009 Apr-Jun