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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Dijkema, Tim Terhaard, Chris H J Roesink, Judith M Raaijmakers, Cornelis P J van den Keijbus, Petra A M Brand, Henk S Veerman, Enno C I |
| Abstract | Background The salivary mucin MUC5B, present in (sero)mucous secretions including submandibular gland (SMG) saliva, plays an important role in the lubrication of the oral mucosa and is thought to be related to the feeling of dry mouth. We investigated if MUC5B levels in SMG saliva could distinguish between the presence or absence of severe dry mouth complaints 12 months after radiotherapy (RT) for head-and-neck cancer (HNC). Findings Twenty-nine HNC patients with a residual stimulated SMG secretion rate of ≥0.2 ml/10 min at 12 months after RT were analyzed. MUC5B (in U; normalized to 1) and total protein levels (mg/ml) were measured in SMG saliva at baseline and 12 months after RT using ELISA and BCA protein assay, respectively. Overall, median MUC5B levels decreased after RT from 0.12 to 0.03 U (p = 0.47). Patients were dichotomized into none/mild xerostomia (n = 12) and severe xerostomia (n = 17) based on a questionnaire completed at 12 months. SMG and whole saliva flow rates decreased after RT but were comparable in both groups. The median MUC5B level was higher in patients with no or mild xerostomia compared to patients with severe xerostomia (0.14 vs 0.01 U, p = 0.22). Half of the patients with severe xerostomia had no detectable MUC5B at 12 months after RT. No differences in total protein levels were observed. Conclusions Qualitative saliva parameters like MUC5B need further investigation in RT-induced xerostomia. This pilot study showed a trend towards lower MUC5B levels in the SMG saliva of patients with severe xerostomia 12 months after RT for HNC. |
| Related Links | https://ro-journal.biomedcentral.com/counter/pdf/10.1186/1748-717X-7-91.pdf |
| Ending Page | 4 |
| Page Count | 4 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/1748-717X-7-91 |
| Journal | Radiation Oncology |
| Issue Number | 1 |
| Volume Number | 7 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2012-06-15 |
| Access Restriction | Open |
| Subject Keyword | Cancer Research Oncology Radiotherapy Imaging Radiology Xerostomia Head-and-neck cancer MUC5B Mucin Submandibular gland |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Oncology |
| Journal Impact Factor | 3.3/2023 |
| 5-Year Journal Impact Factor | 3.6/2023 |
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