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[Parotid and submaxillary saliva sialochemistry in cystic fibrosis (author's transl)]
Insights
Cystic fibrosis significantly alters parotid saliva protein patterns in children, more so than submaxillary secretions. A novel protein group was identified in cystic fibrosis parotid saliva, indicating disease-specific changes.
Area of Science:
- Biochemistry
- Pediatric Medicine
- Genetics
Background:
- Cystic fibrosis (CF) is a genetic disorder affecting multiple organs, including salivary glands.
- Salivary gland dysfunction is increasingly recognized as a feature of CF, impacting oral health.
- Understanding salivary alterations in CF can provide insights into disease mechanisms and potential biomarkers.
Purpose of the Study:
- To analyze and compare the chemical and protein composition of parotid and submaxillary secretions in children with cystic fibrosis.
- To identify specific alterations in salivary protein patterns associated with cystic fibrosis.
- To investigate potential differences in salivary gland involvement between parotid and submaxillary glands in CF patients.
Main Methods:
- Analysis of chemical parameters (flow rate, total protein, amylase, lysozyme, IgA, sodium, potassium, calcium) in parotid and submaxillary secretions from 21 children with CF (ages 5-14).
- Estimation of salivary protein patterns using quantitative disc electrophoresis in various gel systems.
- Comparison of protein electrophoretograms with a control group of 80 secretions.
Main Results:
- Significant alterations in the protein patterns of parotid saliva were observed in children with cystic fibrosis compared to controls.
- Submaxillary secretions also showed altered protein patterns, but to a lesser extent than parotid saliva.
- A novel protein group was identified in the disc electrophoresis patterns of parotid saliva from cystic fibrosis patients, representing a marked finding.
Conclusions:
- Parotid saliva protein profiles are more profoundly affected by cystic fibrosis than submaxillary saliva profiles in pediatric patients.
- The identification of a new protein group in CF parotid saliva suggests a specific salivary gland response to the disease.
- These findings highlight the potential of salivary analysis as a diagnostic or monitoring tool for cystic fibrosis.
Abstract:
The following chemical parameters of parotid and submaxillary secretions from 21 children (in the age from 5 to 14 years) with cystic fibrosis were analyzed: flow rate, total protein, amylase, lysozyme, IgA, sodium potassium, calcium levels. Protein pattern of secretions isolated were estimated with quantitative discelectrophoresis in various gelsystems and against an control group (80 secretions) compared. Parotid saliva protein pattern in cystic fibrosis is stronger altered than in submaxillary secretions. A new protein group in cystic fiborsis parotid saliva discelectropherogram is a marked finding.