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Published on: June 21, 2021
Alteration of thiol-disulphide homeostasis in acute tonsillopharyngitis
Soner Sertan Kara1, Ozcan Erel2, Tugba Bedir Demirdag1
1a Department of Pediatric Infectious Diseases , Gazi University Medical Faculty , Ankara , Turkey.
Insights
Thiol-disulphide homeostasis is altered in children with acute tonsillopharyngitis (AT). This disruption is more pronounced in viral AT than in bacterial AT, indicating a significant difference in thiol-disulphide balance.
Area of Science:
- Biochemistry
- Pediatrics
- Immunology
Background:
- Thiol-disulphide homeostasis (TDH) plays a crucial role in cellular function and is implicated in various clinical conditions.
- Alterations in TDH have been observed in different inflammatory and infectious diseases.
Purpose of the Study:
- To investigate the association between thiol-disulphide homeostasis and acute tonsillopharyngitis (AT) in pediatric patients.
- To compare TDH parameters in children with viral AT, bacterial AT, and healthy controls.
Main Methods:
- The study included 94 children diagnosed with AT (73 viral, 21 bacterial) and 88 healthy control children.
- Measurements of native thiol, total thiol, and disulphide levels were performed for all participants.
Main Results:
- Children with both viral and bacterial AT exhibited significantly lower native and total thiol levels compared to healthy controls.
- Disulphide levels were lower in bacterial AT than in viral AT, with viral AT showing significantly lower disulphide levels than controls.
- Ratios of native/total thiol were reduced, while disulphide/native thiol and disulphide/total thiol ratios were elevated in AT patients, particularly in viral cases.
- Correlations were observed between C-reactive protein (CRP) and white blood cell (WBC) counts with thiol and disulphide levels.
Conclusions:
- Thiol-disulphide homeostasis is significantly altered in children suffering from acute tonsillopharyngitis.
- The observed alterations in TDH are more pronounced in cases of viral tonsillopharyngitis compared to bacterial tonsillopharyngitis.
Objective:
Thiol-disulphide homeostasis (TDH) has a critical role in various clinical disorders. We aimed to assess the association of TDH with acute tonsillopharyngitis (AT) in children.
Methods:
This study included 94 (73 viral and 21 bacterial) tonsillopharyngitis patients and 88 control children. Their native thiol, total thiol, and disulphide levels were measured.
Results:
Viral and bacterial tonsillopharyngitis patients had lower native thiol levels compared with healthy children (P < 0.001 and P = 0.008, respectively). Both groups had lower total thiol levels compared with control children (P = 0.002 for viral, P = 0.011 for bacterial). The disulphide levels were lower in bacterial than in viral tonsillopharyngitis patients (P = 0.04), and there was a significant difference between viral tonsillopharyngitis patients and the control group (P < 0.001). The native/total thiol ratio in each patient group was lower than in the control group (P < 0.001 for viral, P = 0.017 for bacterial). The disulphide/native thiol and disulphide/total thiol ratios were significantly higher in viral (P < 0.001 for both) and bacterial tonsillopharyngitis patients (P = 0.017 for both) than in healthy children. In all patients, a correlation was found between the levels of C-reactive protein (CRP) and native thiol (r = -0.211, P = 0.04), CRP and total thiol (r = -0.217, P = 0.036), white blood cell (WBC) and native thiol (r = -0.228, P = 0.002), WBC and total thiol (r = -0.191, P = 0.01), and WBC and disulphide (r = 0.160, P = 0.03).
Discussion:
TDH is altered in AT in children. The alteration is more prominent in viral than in bacterial tonsillopharyngitis.
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