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Chethana R, Devan PP, Sushmitha K. The Role of Oxidants and Antioxidants in Chronic Tonsillitis. Indian J Otolaryngol Head Neck Surg 2022; 74:5269-5274. [PMID: 36742592 PMCID: PMC9895348 DOI: 10.1007/s12070-020-02087-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/20/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of the study was to determine the possible role of oxidants and antioxidants in chronic tonsillitis in paediatric age group and also to know the outcome of tonsillectomy on the oxidative stress 60 patients (30 tests, 30 controls) in the age group 3-14 years were recruited in the study. Total antioxidant capacity, superoxide dismutase (antioxidants), Malondialdehyde (oxidant) was measured from the venous blood sample. In the study group, i.e. group with chronic tonsillitis who were to undergo tonsillectomy, these levels were measured twice, preoperatively and 1 month after surgery. In the control group the parameters were measured only once. The results were compared statistically. Malondialdehyde levels (oxidant) levels in blood were siginificantly high in patients with chronic tonsillitis which reduced post tonsillectomy but did not normalise in 1 month after tonsillectomy. Total antioxidant capacity and superoxide dismutase levels (antioxidants) in blood were significantly low in patients with chronic tonsillitis which improved post tonsillectomy but did not normalize 1 month post-surgery. The study showed that oxidants and antioxidants have a role in chronic tonsillitis.Children with chronic tonsillitis are under significant oxidative stress. Reduction in oxidative stress post tonsillectomy suggested that the surgery was helpful in this respect.
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Affiliation(s)
- R. Chethana
- Bharati Vidyapeeth (Deemed to be University) Medical College, Pune, Maharashtra India
| | - P. P. Devan
- A. J . Institute of Medical Sciences, Mangalore, Karnataka India
| | - K. Sushmitha
- Kasturba Medical College, Mangalore, Karnataka India
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2
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Abdelhafeez M, Mohamed NM. Correlation between Serum Interleukin-17 level and Serum Reactive Oxygen Species levels among Children experiencing Otitis Media with Effusion. Int Arch Otorhinolaryngol 2021; 25:e570-e574. [PMID: 34737829 PMCID: PMC8558946 DOI: 10.1055/s-0040-1718961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/26/2020] [Indexed: 11/18/2022] Open
Abstract
Introduction
The detection of inflammatory mediators in the serum of children with have otitis media with effusion (OME) and their correspondence with clinical considerations may enable the use of a modern nonsurgical curative treatment for OME.
Objective
To determine the relation between interleukin-17 (IL-17) serum level and reactive oxygen species (ROS) serum levels in children suffering from OME and to disclose if any variation occurs in the level of IL-17 Will affect the ROS and antioxidant equilibrium in the serum, which indicates the entire body's reaction to OME.
Methods
The present study was a case-control study. A total of 24 children experienced OME, and 24 healthy controls were recruited.
All participants in the study were subjected to a systematic clinical investigation including otoscopic, audiometric, and tympanometric examination. Also, venous blood samples were collected from all children to determine the levels of IL-17 and ROS. Results
The mean ± standard deviation (SD) age ranges of the patients and the control group were 6.8 ± 2.7 and 6.2 ± 3.4 years, respectively. A stylistically significant difference in the levels of serum nitric oxide (NO), catalase (CT), myeloperoxidase (MPO), and malondialdehyde (MDA) (
p
< 0.05) was detected between OME and control patients. No significant difference was found in serum levels of superoxide dismutase (SOD) and glutathione peroxidase (GPX) between OME and control patients. The serum levels of MDA, NO, and MPO positively correlated with the serum levels of IL-17 in OME patients.
Conclusion
In the present study, there is a reasonable role of the IL-17 pathway in OME pathogenesis through an increase in ROS levels.
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Affiliation(s)
- Marwa Abdelhafeez
- Department of Otorhinolaryngology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Noura Mostafa Mohamed
- Department of Biochemistry, Faculty of Medicine, Zagazig University, Egypt.,College of foundation year of health profession(FYHC), Science department, Princess Nourah bint Abdulrahman University, KSA
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3
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Yucel K, Aydin I, Erdem SS. Hypoxia induced factor-1α levels in patients undergoing adenoidectomy. Scandinavian Journal of Clinical and Laboratory Investigation 2020; 81:34-38. [PMID: 33226863 DOI: 10.1080/00365513.2020.1849786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Among the most common causes of nasal congestion in childhood is adenoid hypertrophy (AH) which leads to hypoxia. In this study, we studied plasma concentrations of hypoxia induced factor-1α (HIF-1α) in children undergoing adenoidectomy. The study included a total of 86 participants: 39 patients with AH and 47 healthy individuals. Serum HIF-1α levels (ng/mL) were measured by ELISA. HIF-1α concentrations were compared to the adenoid-nasopharyngeal ratio (ANR) of patients with AH, as recorded in the medical records. We found significantly higher concentrations of HIF-1α (0.30 ± 0.47 ng/mL) in patients with AH as compared to healthy controls (0.24 ± 0.07 ng/mL, p = .011). HIF-1α levels were not significantly different regarding gender between patients with AH (p = .77) and in the control group (p = .97). In patients with AH, there was a moderately significant positive correlation between HIF-1α levels and Hb (p = .000), (correlation coefficient r = 0.542). There was a positive correlation between HIF-1α and ANR in patients with AH (p = .005, r = 0.439). This study indicates that AH increases HIF-1α levels. We also observed a moderately significant positive correlation between HIF-1α and ANR in patients with AH. HIF-1α levels are a potential biomarker for hypoxia in patients with AH.
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Affiliation(s)
- Kamile Yucel
- Medical Biochemistry, KTO Karatay University School of Health Sciences, Konya, Turkey
| | - Isa Aydin
- Department of Otorhinolaryngology, Konya Education and Research Hospital, Konya, Turkey
| | - Said Sami Erdem
- Department of Biochemistry, Konya Education and Research Hospital, Konya, Turkey
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Arikan TA, Kelles M. Plasma Selenium and Cadmium Levels in Patients with Chronic Otitis Media in a Turkish Population and Their Relation to Inflammation Markers. Biol Trace Elem Res 2019; 189:55-63. [PMID: 30259264 DOI: 10.1007/s12011-018-1520-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/10/2018] [Indexed: 10/28/2022]
Abstract
Chronic otitis media (COM) is a multifactorial process, for which a clear etiology has not yet been established. The aims of the present study were to evaluate selenium (Se) and cadmium (Cd) levels in patients with COM and to analyze the correlation between Se and Cd with inflammation markers. The study population consisted of 88 participants: 45 healthy controls (group 1) and 43 patients with COM (group 2). Demographic data, Se, Cd, C-reactive protein (CRP), and white blood cell count (WBC) levels were all recorded. Se and Cd measurements were performed in a graphite furnace atomic absorption spectrophotometer (Perkin Elmer Analyst 800) using Zeeman background correction. The Se and Cd levels were compared between the groups and the correlation between Se and Cd with inflammation markers was analyzed. No statistically significant difference was determined between the groups in terms of demographic data (p > 0.05). CRP and WBC levels were significantly higher in group 2 than in group 1 (p < 0.05). Se levels were significantly lower in group 2 than in group 1, at 23.40 ± 12.08 μg/L vs. 37.31 ± 22.44 μg/L (p < 0.05). Cd levels were significantly higher in group 2 than in group 1, at 1.79 ± 1.63 μg/L vs. 0.68 ± 0.45 μg/L (p < 0.05). When all the cases were evaluated together, a statistically significant negative correlation was determined between Se and CRP (r = - 0.239, p = 0.013) and a positive correlation between Cd and CRP (r = 0.266, p = 0.006), WBC (r = 0.258, p = 0.008). Our results could propose that Se deficiency and Cd excess could play a crucial and additive role in the etiopathogenesis of COM. However, further investigations with larger numbers of patients are warranted to determine the exact role of these elements.
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Affiliation(s)
- Tugba Atilan Arikan
- Education Faculty, Department of Elementary Science Teaching, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
| | - Mehmet Kelles
- Department of Otolaryngeology, Malatya Education and Research Hospital, Malatya, Turkey
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Wu X, Shan C, Peng B, Shi X, Zhang F, Cao J. Comparison of desflurane and sevoflurane on postoperative recovery quality after tonsillectomy and adenoidectomy in children. Exp Ther Med 2019; 17:4561-4567. [PMID: 31086588 PMCID: PMC6488999 DOI: 10.3892/etm.2019.7467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/20/2019] [Indexed: 12/31/2022] Open
Abstract
Comparison of desflurane and sevoflurane on the postoperative recovery quality after tonsillectomy and adenoidectomy in children was carried out. A retrospective analysis was performed on the medical records of 165 children who underwent tonsil and adenoid radiofrequency ablation under low-temperature plasma and were admitted to the Xuzhou Children's Hospital, Xuzhou Medical University from February 2014 to May 2017. In total, 79 children with sevoflurane anesthesia were in the sevoflurane group, and 86 children with desflurane anesthesia in the desflurane group. The non-invasive blood pressure (NIBP), heart rate (HR) and oxygen saturation (SpO2) level, the postoperative sedation (Ramsay) scores, the modified objective pain score (MOPS) of children were recorded. The pediatric anesthesia emergence delirium (PAED) scores of children were recorded. Children in the sevoflurane group had longer operation time, anesthesia time, extubation time and coincidence time than those in the desflurane group (P<0.05). At the beginning of operation (t1), 10 min after operation (t2), at the time of entering anesthesia recovery room (t3), at the time of tracheal catheter extubated (t4), 10 min after extubation (t5), and at the time of leaving the anesthesia recovery room (t6), children in the sevoflurane had higher NISBP and NIDBP, lower HR than those in the desflurane group (P<0.05). At the time of the tracheal catheter extubation (c2), 10 min after extubation (c3), 30 min after extubation (c4), children in the sevoflurane group had lower Ramsay scores and higher PAED scores than those in the desflurane group (P<0.05). More suitable as an anesthetic maintenance drug for tonsillectomy and adenoidectomy in children, desflurane has a better anesthetic effect and is safer. In addition, children with desflurane anesthesia have high postoperative recovery quality and quick recovery in the short term, with better sedative and analgesic effects. Therefore, it is worthy of promotion in clinic practice.
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Affiliation(s)
- Xiaole Wu
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Chengjing Shan
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Bei Peng
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Xuxu Shi
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Fengchao Zhang
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Junhua Cao
- Department of Anesthesiology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
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Aydin S, Gokhan Demir M, Oguztuzun S, Kilic M, Yilmaz C, Dirican O. Glutathione S-transferase enzyme activity and protein expression in patients with recurrent tonsillitis and idiopathic tonsillar hypertrophy. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2019; 163:349-354. [PMID: 30765895 DOI: 10.5507/bp.2019.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 01/29/2019] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES The palatine tonsil is a significant part of the secondary immune system. Tonsillitis and idiopathic tonsillar hypertrophy (ITH) are the most common pathologies of this component. Although there are studies on their pathogenesis, there is insufficient study of the role of antioxidant agents. Glutathione S-transferase (GST) isozymes contribute to the antioxidation reactions in the tissue via the glutathione pathway. The purpose in this study was to reveal the levels of the GST enzyme activity and protein expression of GSTP1 and GSTA1 isozymes in patients with tonsillitis and tonsil hypertrophy, and to investigate their role in the pathogenesis of these diseases. MATERIALS AND METHODS Sixteen patients with recurrent tonsillitis and 5 patients with ITH and were included in the study. Cytosolic extracts were prepared from post-tonsillectomy tissues of both patient groups and GST enzyme activities were measured. RESULTS The expression of GSTP1 was found to be significantly higher than GSTA1 in tissue samples of patients with ITH and recurrent tonsillitis (P<0.001). Increased GST activity and GSTP1 isozyme expression were shown in patients with recurrent tonsillitis compared to the idiopathic tonsillar hypertrophy study group. There was a positive correlation between the expressions of GSTP1 (P=0.040; r=0.47). CONCLUSION Increased GST activity and GSTP1 isozymes were demonstrated histologically in the pathogenesis of ITH and recurrent tonsillitis. We believe that the data of changes in antioxidant capacity, obtained from studies with more extensive and larger samples, would support our findings.
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Affiliation(s)
- Sedat Aydin
- Department of Otorhinolaryngology, Kartal Dr. Lutfi Kirdar Kartal Education and Research Hospital, Istanbul, Turkey
| | | | - Serpil Oguztuzun
- Department of Biology, Kirikkale University, Faculty of Arts and Sciences, Kirikkale, Turkey
| | - Murat Kilic
- Department of Pharmacy Services, Ankara University Vocational School of Health Services, Ankara, Turkey
| | - Can Yilmaz
- Department of Molecular Biology and Genetic, Yuzuncu Yil University, Van, Turkey
| | - Onur Dirican
- Department of Biology, Kirikkale University, Faculty of Arts and Sciences, Kirikkale, Turkey
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Hung SH, Kao LT, Huang CC, Shia BC, Lin HC. A Taiwanese population-based study on the association between chronic tonsillitis and tonsil cancer. Oncotarget 2018; 9:7644-7650. [PMID: 29484140 PMCID: PMC5800932 DOI: 10.18632/oncotarget.24262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/09/2018] [Indexed: 11/30/2022] Open
Abstract
Although it is known that inflammatory processes elevate the risk of cancer, to date the association between chronic tonsillitis and tonsil cancer remains unknown. This study aimed to evaluate the association of chronic tonsillitis with tonsil cancer based on a population-based database in Taiwan. We retrieved data for this study from the Longitudinal Health Insurance Database 2005. This case-control study included 489 patients with tonsil cancer and 2445 matched controls. We used conditional logistic regression analyses to calculate the odds ratio (OR) and corresponding 95% confidence interval (CI) for having been previously diagnosed with chronic tonsillitis between patients with tonsil cancer and the controls. We found that of the 2934 sampled patients, 22 (0.75%) had received a diagnosis of chronic tonsillitis. A Chi-squared test further revealed that there was a significant difference in the prevalences of prior chronic tonsillitis between tonsil cancer patients and controls (2.45% vs. 0.41%, p<0.001). The conditional logistic regression suggested that after adjusting for hypertension, diabetes, hyperlipidemia, obesity, tobacco use disorder, and alcohol abuse/alcohol dependency syndrome, the OR of having previously been diagnosed with chronic tonsillitis for patients with tonsil cancer was 8.07 (95% CI: 3.32∼19.64; p<0.001) compared to controls. It is also noteworthy that alcohol abuse/alcohol dependency syndrome was significantly associated with TC (adjusted OR=9.88). We demonstrated that patients with chronic tonsillitis were more likely to have tonsil cancer, and our findings support tonsillitis as a possible risk factor for tonsil cancer.
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Affiliation(s)
- Shih-Han Hung
- Department of Otolaryngology, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Otolaryngology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li-Ting Kao
- Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan
| | - Chung-Chien Huang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - Ben-Chang Shia
- Big Data Research Center, Taipei Medical University, Taipei, Taiwan
| | - Herng-Ching Lin
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan.,Sleep Research Center, Taipei Medical University Hospital, Taipei, Taiwan
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Kilinc M, Kastal C, Okur E, Yildirim I. Evaluation of Serum Selenium and Erythrocyte Glutathione Peroxidase Levels in Patients with Recurrent Tonsillitis. Indian J Otolaryngol Head Neck Surg 2017; 71:188-191. [PMID: 31741958 DOI: 10.1007/s12070-017-1207-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 09/13/2017] [Indexed: 11/30/2022] Open
Abstract
The aim of this study is to investigate serum selenium (Se) and glutathione peroxidase (GSH-Px) levels in patients with recurrent tonsillitis. The study included 53 patients with recurrent tonsillitis and 51 healthy children. The measurement of serum Se levels were done in graphite furnace atomic absorption spectrophotometer using Zeeman background correction. Erythrocyte GSH-Px levels were indirectly measured by using the spectrophotometry. The ages of children in both groups ranged between 3 and 13 years, with a mean age of 7.60 years for patient group and 7.22 years for control group. Mean serum Se levels in patient and control groups were 60.4 and 78.7 µg/dL respectively. Mean erythrocyte GSH-Px levels in patient and control groups were 7.0 and 23.1 U/g hb, respectively. The mean blood Se and GSH-Px levels in patients with recurrent tonsillitis were significantly (P < 0.001) lower than control group. In our study, we found that serum Se and erythrocyte GSH-Px levels of cases with recurrent tonsillitis were significantly lower than healthy controls. The decline in serum Se and erythrocyte GSH-Px enzyme levels may predispose a chronic disease state but this issue needs further investigation.
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Affiliation(s)
- Metin Kilinc
- 1Department of Biochemistry, School of Medicine, Kahramanmaras Sutcu Imam University, 46050 Kahramanmaras, Turkey
| | - Cem Kastal
- Department of Otorhinolaryngology, Silifke State Hospital, 33940 Silifke, Mersin Turkey
| | - Erdogan Okur
- 3Department of Otorhinolaryngology, School of Medicine, Suleyman Demirel University, SDU Dogu Yerleskesi, Arastirma ve Uygulama Hastanesi KBB poliklinigi, Cunur, 32260 Isparta, Turkey
| | - Ilhami Yildirim
- Department of Otorhinolaryngology, Adana Numune State Hospital, Yuregir, Adana Turkey
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Ozbay I, Kucur C, Koçak FE, Savran B, Oghan F. Advanced oxidation protein product levels as a marker of oxidative stress in paediatric patients with chronic tonsillitis. ACTA OTORHINOLARYNGOLOGICA ITALICA 2017; 36:381-385. [PMID: 27958598 PMCID: PMC5225793 DOI: 10.14639/0392-100x-897] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 03/26/2016] [Indexed: 11/23/2022]
Abstract
We aimed to determine whether advanced oxidation protein product (AOPP) levels can serve as a marker of oxidative stress in paediatric patients with chronic tonsillitis. Thirty children with chronic tonsillitis and 30 healthy children (control group) were recruited from the Otorhinolaryngology (ORL) and Paediatric Surgery departments, respectively, of Dumlupinar University Hospital. In the patient group, blood samples were collected before tonsillectomy, and tonsil tissue was sampled during the operation. Blood samples were also obtained from the control subjects. AOPP levels in the serum and tonsil tissue were measured by the spectrophotometric method. Serum AOPP levels were significantly higher in the patient group (13.1 ± 3.3 ng/ml) than in the control group (11.6 ± 2.3 ng/ml; P < 0.05). In addition, the mean AOPP level (41.9 ± 13.5 ng/mg protein) in the tonsil tissue in the patient group was significantly higher than the mean serum AOPP levels in the control and patient groups (P < 0.05). AOPP levels are elevated in the tonsil tissue and serum of patients with chronic tonsillitis compared to the serum AOPP levels in healthy controls. AOPPs may represent a novel class of pro-inflammatory molecules that are involved in oxidative stress in chronic tonsillitis. AOPPs may be used as a marker of oxidative stress in paediatric patients with chronic tonsillitis.
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Affiliation(s)
- I Ozbay
- Department of ORL, Dumlupınar University, Kutahya, Turkey.,Department of Otolaryngology-Head and Neck Surgery, "Arthur G. James" Cancer Hospital and "Richard J. Solove" Research Institute, Comprehensive Cancer Center, the Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - C Kucur
- Department of ORL, Dumlupınar University, Kutahya, Turkey
| | - F E Koçak
- Department of Biochemistry, Dumlupınar University, Kutahya, Turkey
| | - B Savran
- Department of Pediatric Surgery, Dumlupınar University, Kutahya, Turkey
| | - F Oghan
- Department of ORL, Dumlupınar University, Kutahya, Turkey
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The effects of septoplasty surgery on serum oxidative stress levels. Eur Arch Otorhinolaryngol 2017; 274:2799-2802. [PMID: 28396944 DOI: 10.1007/s00405-017-4546-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
The aim of this study is to compare the total antioxidant status (TAS), total oxidant status (TOS), and paraoxonase (PON1) serum levels in patients who have undergone septoplasty (NSD). Forty-six patients (mean age 33.7) aged between 18 and 50 years who were diagnosed with nasal septal deviation (NSD) were included in the study. The TAS, TOS, and PON1 levels were compared in the serum samples obtained 1 month before the septoplasty and 3 months after surgery. There was a significant increase in mean TAS after septoplasty (1.041 vs. 1.124 mmol/L, p = 0.011). The mean TOS decreased significantly after septoplasty (20.631 vs. 5.946 mmol/L, p = 0.011). The mean pre- and postoperative PON1 levels were similar (326.93 ± 215.22 vs. 275.20 ± 167.76 U/L, p = 0.253). Increased TAS and decreased TOS after septoplasty show that patients with NSD are under oxidative stress that is relieved following septoplasty.
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11
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Hamza RZ, Ismail HAA, El-Shenawy NS. Oxidative stress, histopathological and electron microscopic alterations induced by dimethylnitrosamine in renal male mice and the protective effect of α-lipoic acid. J Basic Clin Physiol Pharmacol 2017; 28:149-158. [PMID: 27701137 DOI: 10.1515/jbcpp-2016-0042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 07/22/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Dimethylnitrosamine (DMN) is a waste product of several industrial processes. α-Lipoic acid (ALA) is a vitamin-like chemical also called as an antioxidant. Therefore, the study was designed to investigate the potential benefits of ALA in reducing the nephropathy of DMN in male mice. METHODS Animals were divided into 6 groups (n=8) and received their treatment for 4 weeks as follows: groups 1-4 served as control, ALA-treatment (16.12 mg/kg), DMN low dose treatment and DMN high dose treatment, respectively. Groups 5 and 6 received ALA before DMN low dose and DMN high dose, respectively. Superoxide dismutase, catalase, glutathione peroxidase and xanthine oxidase, total antioxidant capacity, nitric oxide, lipid peroxidation as well as the levels of uric acid and creatinine were determined. The histological and ultrastructure changes of renal tissue were also evaluated. RESULTS Treatment of the DMN mice with ALA showed a reduction in the levels of kidney nitric oxide, lipid peroxidation, as well as creatinine and uric acid levels as compared with the DMN group. The results show that ALA plays an important role in quenching the free radicals resulting from the metabolism of DMN, thereby inhibiting lipid peroxidation and protecting membrane lipids from oxidative damage and, in turn, preventing oxidative stress and apoptosis. Histopathological and ultrastructure analysis of renal tissue confirmed the oxidative stress results occurred in DMN renal mice. Concomitant administration of ALA with DMN significantly decreased all the histopathological changes induced by DMN. CONCLUSIONS The present study elucidated the therapeutic effects of ALA administered in combination with DMN to minimize its renal toxicity.
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Michalska-Mosiej M, Socha K, Soroczyńska J, Karpińska E, Łazarczyk B, Borawska MH. Selenium, Zinc, Copper, and Total Antioxidant Status in the Serum of Patients with Chronic Tonsillitis. Biol Trace Elem Res 2016; 173:30-4. [PMID: 26847690 PMCID: PMC4975761 DOI: 10.1007/s12011-016-0634-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 01/26/2016] [Indexed: 11/26/2022]
Abstract
Antioxidants can play a significant role in chronic inflammatory process. The aim of this study was to evaluate the content of selenium (Se), zinc (Zn), copper (Cu), and total antioxidant status (TAS) of patients with chronic tonsillitis (CT). The study group consisted of 84 patients with CT from 18 to 62 years old and the control group of 67 healthy people aged 19-65 years. Se, Zn, and Cu concentration in serum samples were determined by atomic absorption spectrometry. Serum TAS was measured spectrophotometrically, using the test by Randox Laboratories-Us Ltd. The mean content of Se and Zn in the serum of patients with CT (61.122 ± 12.73 μg/L, 0.887 ± 0.26 mg/L, respectively) was lower compared to the control group (77.969 ± 12.73 μg/L, 0.993 ± 0.32 mg/L, respectively). The mean serum concentration of Cu in patients with CT (1.219 ± 0.35 mg/L) was higher compared to its serum concentration in healthy people (1.033 ± 0.37 mg/L). Serum TAS of patients with CT (1.171 ± 0.33 mmol/L) was lower in comparison with healthy volunteers (1.333 ± 0.42 mmol/L). The serum concentration of Se, Zn, and TAS in patients with CT was lower, whereas the concentration of Cu was higher compared to healthy volunteers. Smoking has an influence on reducing the concentration of Se and TAS of patients with CT.
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Affiliation(s)
- Małgorzata Michalska-Mosiej
- Department of Otolaryngology, Regional Hospital of Bialystok, M. Skłodowskiej-Curie 26 St., 15-950, Bialystok, Poland
| | - Katarzyna Socha
- Department of Bromatology, Medical University of Bialystok, Mickiewicza 2D St., 15-222, Bialystok, Poland
| | - Jolanta Soroczyńska
- Department of Bromatology, Medical University of Bialystok, Mickiewicza 2D St., 15-222, Bialystok, Poland
| | - Elżbieta Karpińska
- Department of Bromatology, Medical University of Bialystok, Mickiewicza 2D St., 15-222, Bialystok, Poland
| | - Bogdan Łazarczyk
- Department of Otolaryngology, Regional Hospital of Bialystok, M. Skłodowskiej-Curie 26 St., 15-950, Bialystok, Poland
| | - Maria Halina Borawska
- Department of Bromatology, Medical University of Bialystok, Mickiewicza 2D St., 15-222, Bialystok, Poland.
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Baysal E, Gulsen S, Aytac I, Celenk F, Ensari N, Taysi S, Binici H, Durucu C, Mumbuc S, Kanlikama M. Oxidative stress in otosclerosis. Redox Rep 2016; 22:235-239. [PMID: 27387094 DOI: 10.1080/13510002.2016.1207920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES Otosclerosis is a disease involving abnormal bone turnover in the human otic capsule that results in hearing loss. Several hypotheses have been suggested for the etiopathogenesis of otosclerosis; however, its etiology remains unclear. METHODS This study evaluated the correlation between otosclerosis and levels of paraoxonase-1 (PON1), arylesterase, total antioxidant status, total oxidant status (TOS), oxidative stress index (OSI), total sulfhydryl (-SH) groups, lipid hydroperoxide, and ceruloplasmin in the serum of otosclerosis patients and healthy subjects with respect to oxidative stress. RESULTS In our study, TOS and OSI levels were higher in the otosclerosis patients than in the controls. The PON1 levels showed that oxidative stress was severe, and as a result, antioxidants were consumed and depleted. DISCUSSION When an imbalance between oxygen free radical production and antioxidative defense mechanisms occurs, reactive oxygen species levels may increase, which in turn may damage cells and tissues through the peroxidation of phospholipid membrane structures. The body initially responds with increased antioxidant production, but if the oxidative stress is severe, decreased antioxidant levels may result. This study reports expression levels of oxidative stress species in otosclerosis patients.
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Affiliation(s)
- Elif Baysal
- a Faculty of Medicine, Otolaryngology Department , Inonu University , Malatya , Turkey
| | | | | | - Fatih Celenk
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Nuray Ensari
- e Antalya Education and Research Hospital , Antalya , Turkey
| | - Seyithan Taysi
- f Faculty of Medicine, Biochemistry Department , Gaziantep University , Gaziantep , Turkey
| | - Habib Binici
- g Faculty of Medicine, Otolaryngology Department , Harran University , Sanliurfa , Turkey
| | - Cengiz Durucu
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Semih Mumbuc
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
| | - Muzaffer Kanlikama
- d Faculty of Medicine, Otolaryngology Department , Gaziantep University , Gaziantep , Turkey
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Yilmaz T, Koçan EG, Besler HT, Yilmaz G, Gürsel B. The Role of Oxidants and Antioxidants in Otitis Media with Effusion in Children. Otolaryngol Head Neck Surg 2016; 131:797-803. [PMID: 15577771 DOI: 10.1016/j.otohns.2004.07.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE: Determine the possible role of oxidants and antioxidants in the pathogenesis of otitis media with effusion in children. STUDY DESIGN AND SETTING: Randomized controlled trial, tertiary referral center. The study group was made up of children with otitis media with effusion who were to undergo bilateral ventilation tube insertion and adenoidectomy. The control group was comprised of otherwise healthy children. The blood levels of antioxidants (retinol, β-carotene, (α-tocopherol, laycopene, ascorbic acid, superoxide dismutase, glutathione peroxidase, GSH) and oxidation products (malondialdehyde) were determined before and 1 month after the operation in the study group and once only in the control group. These substances were also measured in the adenoid tissue and middle ear fluids. RESULTS: In the study group, the blood levels of antioxidants and oxidants before and after the operation were significantly different when compared with the control group ( P < 0.05). In the study group, the blood antioxidant levels increased and oxidant levels decreased significantly after the operation ( P < 0.05). The levels after the operation never reached those of the control group. CONCLUSIONS AND SIGNIFICANCE: Oxidants and antioxidants played a significant role in the pathogenesis of otitis media with effusion in children. These children are under significant oxidative stress. Insertion of a ventilation tube and adenoidectomy significantly decreased the oxidative stress in these patients, but could not normalize it completely. Additional studies are necessary in the clinical use of antioxidants in otitis media with effusion.
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Affiliation(s)
- Taner Yilmaz
- Department of Otolaryngology--Head and Neck Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey.
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Önal M, Yılmaz T, Bilgiç E, Müftüoğlu S, Sözen T, Bajin MD. Possible role of apoptosis in pathogenesis of adenoid hypertrophy and chronic adenoiditis: Prospective case-control study. Auris Nasus Larynx 2015; 42:449-52. [PMID: 26003878 DOI: 10.1016/j.anl.2015.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/15/2015] [Accepted: 04/27/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Apoptosis is a programmed cell death; it provides an important balance between lymphocytes in adenoid tissue. The aim of this study is to investigate the role of apoptosis in chronic adenoiditis and adenoid hypertrophy. This is the first study in the literature about apoptosis in adenoid hypertrophy and chronic adenoiditis. METHODS Prospective case-control study in a tertiary referral university hospital was conducted. 46 patients who had chronic adenoiditis and adenoid hypertrophy underwent adenoidectomy. Adenoids were evaluated for apoptosis and assembled into groups according to their size. Apoptotic cells were counted in three different microscopic fields and their average was taken for every microcompartment. As a result of immunohistochemical staining, specimens were compared for their apoptotic cell rate. RESULTS The difference in apoptosis of chronic adenoiditis and adenoid hypertrophy groups is statistically significant (p<0.05). The age 6 was used as a cut-off to compare apoptosis in adenoid tissue. The difference was not statistically significant for patients at and below 6 years of age; however, the difference was statistically significant for patients above 6 years of age. The comparison of apoptosis in microcompartments of adenoid tissue (intrafollicular, interfollicular, subepithelial and intraepithelial) between chronic adenoiditis and adenoid hypertrophy groups revealed significant differences for intrafollicular and intraepithelial areas, and insignificant differences for interfollicular and subepithelial areas. CONCLUSION Although apoptosis could not totally explain the pathogenesis of chronic adenoiditis and adenoid hypertrophy, it appeared to play an important role in it. Apoptosis functions to limit adenoid hypertrophy. Adenoid apoptosis appears to be age-dependent.
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Affiliation(s)
- Merih Önal
- Hacettepe University Faculty of Medicine, Department of Otolaryngology-Head & Neck Surgery, Ankara, Turkey
| | - Taner Yılmaz
- Hacettepe University Faculty of Medicine, Department of Otolaryngology-Head & Neck Surgery, Ankara, Turkey.
| | - Elif Bilgiç
- Hacettepe University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Sevda Müftüoğlu
- Hacettepe University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Tevfik Sözen
- Hacettepe University Faculty of Medicine, Department of Otolaryngology-Head & Neck Surgery, Ankara, Turkey
| | - Münir Demir Bajin
- Hacettepe University Faculty of Medicine, Department of Otolaryngology-Head & Neck Surgery, Ankara, Turkey
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Önal M, Yılmaz T, Bilgiç E, Müftüoğlu SF, Kuşçu O, Günaydın RÖ. Apoptosis in chronic tonsillitis and tonsillar hypertrophy. Int J Pediatr Otorhinolaryngol 2015; 79:191-5. [PMID: 25555639 DOI: 10.1016/j.ijporl.2014.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/06/2014] [Accepted: 12/08/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Chronic tonsillitis is the persistent inflammation of the tonsillar tissue that occurs due to recurrent, acute or subclinical infection. The recurrent and chronic inflammation of palatine tonsils sometimes results in hypertrophy. Apoptosis provides an important balance between lymphocytes in tonsillar lymphoid tissue. The aim of this study is to investigate the apoptosis in tonsillar diseases. METHODS 43 patients with chronic tonsilitis and tonsillar hypertrophy underwent tonsillectomy. The specimens were examined immunohistochemically for apoptosis. Tonsils were assembled into groups according to their size. Specimens were compared for their apoptotic cell count. RESULTS The apoptosis difference between the tonsil size groups is not statistically significant (p>0.05). However, when the study group was divided into two at age 6, the difference was not statistically significant for patients at and below 6 years of age; but, the difference was statistically significant for patients above 6 years of age (p<0.05). The comparison of apoptosis in microcompartments of tonsil tissue (intrafollicular, interfollicular, subepithelial and intraepithelial) between tonsil size stages and between chronic tonsillitis and tonsillar hypertrophy groups revealed no statistical significance (p>0.05). There was a statistically significant positive correlation between intrafollicular and interfollicular, interfollicular and intraepithelial & subepithelial and intraepithelial areas (p<0.05). CONCLUSIONS In the light of these findings, it was concluded that apoptosis played a role in the tonsillar hypertrophy and atrophy. Apoptosis functioned to balance lymphocyte proliferation in tonsil tissue. The association of apoptosis with tonsillar hypertrophy seemed to be age-dependent.
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Affiliation(s)
- Merih Önal
- Hacettepe University, Faculty of Medicine Department of Otolaryngology-Head & Neck Surgery, 06100 Sıhhiye, Ankara, Turkey.
| | - Taner Yılmaz
- Hacettepe University, Faculty of Medicine Department of Otolaryngology-Head & Neck Surgery, 06100 Sıhhiye, Ankara, Turkey.
| | - Elif Bilgiç
- Hacettepe University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey.
| | - Sevda Fatma Müftüoğlu
- Hacettepe University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey.
| | - Oğuz Kuşçu
- Hacettepe University, Faculty of Medicine Department of Otolaryngology-Head & Neck Surgery, 06100 Sıhhiye, Ankara, Turkey.
| | - Rıza Önder Günaydın
- Hacettepe University, Faculty of Medicine Department of Otolaryngology-Head & Neck Surgery, 06100 Sıhhiye, Ankara, Turkey.
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Garca MF, Demir H, Turan M, Bozan N, Kozan A, Belli ŞB, Arslan A, Cankaya H. Assessment of adenosine deaminase (ADA) activity and oxidative stress in patients with chronic tonsillitis. Eur Arch Otorhinolaryngol 2013; 271:1797-802. [DOI: 10.1007/s00405-013-2843-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 11/05/2013] [Indexed: 11/24/2022]
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Serum myeloperoxidase activity, total antioxidant capacity and nitric oxide levels in patients with chronic otitis media. J Membr Biol 2013; 246:519-24. [PMID: 23756625 PMCID: PMC3695689 DOI: 10.1007/s00232-013-9561-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/06/2013] [Indexed: 11/07/2022]
Abstract
It has been suggested that oxidative stress may play an important role in the pathogenesis of chronic otitis media (COM), but the role of oxidative stress in the pathogenesis of COM has not yet been fully explored. Therefore, the aim of this study was to investigate serum myeloperoxidase (MPO) activity, 4-hydroxynonenal (4-HNE), malondialdehyde (MDA), total antioxidant capacity (TAC) and nitric oxide (NO) in patients with COM. Sixty-one patients with COM and 30 controls were enrolled in the present study. Patients were divided into two groups according to the presence (n = 21) or absence (n = 40) of cholesteatoma. Serum MPO activity and 4-HNE, MDA and NO levels were significantly higher in patients with COM than controls (for all, p < 0.001), while TAC levels were significantly lower (for all, p < 0.001). Serum MPO activity and MDA, 4-HNE and NO levels were significantly higher in patients with cholesteatoma than in those without cholesteatoma, while TAC levels were significantly lower; but the difference between groups was not statistically significant (p > 0.05). Increased oxidative stress seems to be associated with decreased antioxidant levels in patients with COM. Thus, increased oxidative stress may play a role in the pathogenesis of COM. It is believed that the administration of antioxidant vitamins such as A, C and E may be useful in preventing and treating COM.
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Dawane JS, Pandit VA. Understanding redox homeostasis and its role in cancer. J Clin Diagn Res 2012; 6:1796-802. [PMID: 23373058 PMCID: PMC3552234 DOI: 10.7860/jcdr/2012/4947.2654] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Accepted: 11/12/2012] [Indexed: 01/13/2023]
Abstract
When a cell is damaged or altered without repair to its system, it usually dies. But if such damaged or unrepaired cells do not die and proliferate with uncontrolled growth; a mass of cancer cells develop. Cancer has a complex aetiology with multiple risk factors that involve the interplay between genetic and environmental influences. The redox dysregulation originates from metabolic alterations and it is dependent on mitogenic and survival signalling through reactive oxygen species. There is a delicate balance between the production and the destruction of reactive species; for this, we need to understand the role of redox homeostasis in cancer. So, the specific vulnerability of the malignant cells can be selectively targeted. This article will outline the redox homeostasis and the relationship between the disturbances in it and cancer.
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Affiliation(s)
| | - Vijaya Anil Pandit
- Professor, Department of Pharmacology, Bharati Vidyapeeth Medical College, Pune India
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Gurbuzler L, Sogut E, Koc S, Eyibilen A, Yelken K, Senkal HA, Aksakal C. Manganese-superoxide dismutase and glutathione peroxidase 1 polymorphisms in recurrent tonsillitis and tonsillar hypertrophy. Int J Pediatr Otorhinolaryngol 2012; 76:1270-3. [PMID: 22704671 DOI: 10.1016/j.ijporl.2012.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 05/13/2012] [Accepted: 05/15/2012] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To investigate the association of manganese-superoxide dismutase and glutathione peroxidase 1 polymorphisms with susceptibility to recurrent tonsillitis and tonsillar hypertrophy. METHODS The study consisted of 103 patients with recurrent tonsillitis, 105 patients with tonsillar hypertrophy and 106 control subjects with similar age and sex. Genomic DNA was extracted from peripheral leukocytes of whole blood which were obtained from all patients and control subjects. Genotyping was performed to identify MnSOD Ala-9Val and GPx1 Pro198Leu polymorphisms by a method based on PCR amplification and detection of polymorphisms with hybridization probes labeled with fluorescent dyes. Genotype and allele frequencies were compared between patients with recurrent tonsillitis and tonsillar hypertrophy and 106 healthy control subjects. RESULTS The genotype distribution of the MnSOD Ala-9Val single nucleotide polymorphism was significantly different for the controls and the recurrent tonsillitis patients (P=0.009). Whereas, no significant difference was found between the patients with tonsillar hypertrophy and the control group (P=0.369). The frequency of the MnSOD CC genotype was lower, and that of the T allele was significantly higher, in recurrent tonsillitis patients than in control subjects. In addition, the frequency of tonsillitis was significantly higher in recurrent tonsillitis patients with the MnSOD Ala-9Val polymorphism than the patients with wild-type (P=0.008). Also, no significant difference was found between patient groups and control subjects in the distribution of the genotype and allele frequency of the GPx1 Pro198Leu single nucleotide polymorphism. CONCLUSIONS The MnSOD Ala-9Val polymorphism causes susceptibility to recurrent tonsillitis in Turkish children. And we suggest that there may be a possible relation between local and recurrent infections or inflammation of the tonsillar tissue and the MnSOD Ala-9Val single nucleotide polymorphism in pediatric patients with RT.
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Affiliation(s)
- Levent Gurbuzler
- Department of Otorhinolaryngology, Gaziosmanpasa University, School of Medicine, Tokat, Turkey.
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Baysal E, Aksoy N, Kara F, Taysi S, Taşkın A, Bilinç H, Cevik C, Celenk F, Kanlıkama M. Oxidative stress in chronic otitis media. Eur Arch Otorhinolaryngol 2012; 270:1203-8. [PMID: 22711004 DOI: 10.1007/s00405-012-2070-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 05/29/2012] [Indexed: 11/25/2022]
Abstract
Chronic otitis media usually presents with a benign tumor-like lesion of the temporal bone known as a cholesteatoma. The role of oxidative stress in the pathogenesis of chronic otitis media and cholesteatoma has not yet been fully explored. Therefore, the aim of this study was to investigate the oxidative stress markers and antioxidant enzymes in patients with cholesteatomatous and noncholesteatomatous chronic otitis media and in healthy subjects. A prospective controlled trial was performed on cholesteatomatous and noncholesteatomatous chronic otitis media patients in a tertiary referral center in a university hospital. A total of 75 subjects, including 25 cholesteatomatous and 25 noncholesteatomatous chronic otitis media patients and 25 healthy subjects participated in this study. Serum total oxidant status (TOS) and oxidative stress index (OSI) levels were significantly increased in the patient groups with or without cholesteatoma compared with the control group. Serum total antioxidant status (TAS) levels and Paraoxonase and arylesterase activity were significantly lower in the patient groups with or without cholesteatoma compared with the control group. Serum TOS and OSI levels were lower in the noncholesteatomatous group, whereas serum TAS levels were higher compared with the cholesteatomatous group. Serum arylesterase activity was significantly lower in the noncholesteatomatous group compared with the control group. The results of this study reveal that in cholesteatoma cases, the oxidative stress and antioxidant enzyme imbalance were more significant than in cases of chronic otitis media without cholesteatoma.
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Affiliation(s)
- Elif Baysal
- Department of Otolaryngology, Medical Faculty, Gaziantep University, Sahinbey, Gaziantep 27070, Turkey.
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Iannitti T, Rottigni V, Palmieri B. Role of free radicals and antioxidant defences in oral cavity-related pathologies. J Oral Pathol Med 2012; 41:649-61. [DOI: 10.1111/j.1600-0714.2012.01143.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Koc S, Aksoy N, Bilinc H, Duygu F, Uysal IÖ, Ekinci A. Paraoxonase and arylesterase activity and total oxidative/anti-oxidative status in patients with chronic adenotonsillitis. Int J Pediatr Otorhinolaryngol 2011; 75:1364-7. [PMID: 21893350 DOI: 10.1016/j.ijporl.2011.07.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 07/08/2011] [Accepted: 07/11/2011] [Indexed: 11/18/2022]
Abstract
OBJECTIVES The aim of this study was to investigate serum paraoxonase, arylesterase activities along with determination of oxidative status via measurement of total oxidant status (TOS), total antioxidant status (TAS) and oxidative stress index (OSI) in children with recurrent adenotonsillitis during pre- and post-adenotonsillectomy period and to compare results with data from healthy subjects. METHODS We performed a prospective controlled trial on adenoidectomy and/or tonsillectomy patients. A total of 47 subjects, including 22 patients with recurrent adenotonsillitis and 25 healthy controls were enrolled in this study. Peripheral venous blood samples were taken from patients before adenotonsillectomy and a second sample was obtained in first month postoperatively. In the control group, blood samples from healthy volunteers were collected for one time only. Serum paraoxonase, arylesterase activities, TOS, TAS and OSI levels were measured. RESULTS Paraoxonase, arylesterase activity, TAS and TOS levels were significantly higher in preoperative group compared to control group (P<0.001, P=0.003, 0.003 and 0.005, respectively). However, OSI level was similar in preoperative group compared to control group (P=0.25). In the post-operative group, paraoxonase, arylesterase activities, TAS and OSI levels were lower as compared to preoperative group but differences were statistically insignificant (P=0.483, 0.265, 0.149 and 0.090, respectively). TOS level in post-operative group was significantly lower than the preoperative group (P<0.001). In the post-operative group, paraoxonase and arylesterase activities were significantly higher as compared to control group (P=0.004 and 0.02, respectively). TOS and OSI levels were significantly lower in post-operative group compared to control group (P=0.001 and 0.02, respectively). However, TAS was similar between post-operative and control groups (P=0.464). CONCLUSIONS Based on data obtained from this study, we may state that paraoxonase, arylesterase activities with TAS, TOS and OSI levels of patients with chronic adenotonsillitis shows alterations due to oxidant/antioxidant imbalance induced by frequent infections.
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Affiliation(s)
- Sema Koc
- Gaziosmanpasa University, School of Medicine, Department of Otorhinolaryngology, Tokat, Turkey.
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Abstract
Diagnostic and Therapeutic Significance of the Oxidative Stress Parameters in ChildrenPharmacotherapy of pediatric diseases represents a major challenge considering that the majority of medicines in everyday practice have not been pediatrically evaluated. The efficacy of therapy depends to a large extent on the knowledge of pathophysiological processes in the children organism at different ages. Therefore, research in that direction is of the utmost importance. An imbalance in the production of free oxygen/nitrogen species and parameters of antioxidative protection is a significant factor in many diseases (e.g. heart failure, pulmonary hypertension, asthma, neonatal sepsis, cancer etc.) in children of different age groups. Reactive oxygen/nitrogen species serve as cell signaling molecules for normal biologic processes. An increase in their generation can cause damages which can disrupt normal physiological cellular processes and eventually cause cell death. This review outlines the previous assessments of oxidative stress parameters in children of different ages for some diseases. Also, the potential diagnostic and therapeutic possibilities for the oxydative stress parameters in children have been considered.
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Tamura S, Tsukahara H, Ueno M, Maeda M, Kawakami H, Sekine K, Mayumi M. Evaluation of a urinary multi-parameter biomarker set for oxidative stress in children, adolescents and young adults. Free Radic Res 2009; 40:1198-205. [PMID: 17050173 DOI: 10.1080/10715760600895191] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The involvement of reactive oxygen species (ROS) and oxidative stress in pediatric diseases is an important concern, but oxidative stress status in healthy young subjects and appropriate methods for its measurement remain unclear. This study evaluated a comprehensive set of urinary biomarkers for oxidative stress in healthy children, adolescents and young adults. Results show that urinary excretion of acrolein-lysine, 8-hydroxy-2'-deoxyguanosine (8-OHdG), nitrite/nitrate and pentosidine were highest in the youngest subjects and decreased to constant levels by early adolescence. Urinary acrolein-lysine, 8-OHdG, nitrite/nitrate and pentosidine showed significant inverse correlations with age, but pyrraline did not change significantly with age. No significant differences in biomarkers were apparent between males and females. Younger subjects grow rapidly and sustain immune activation, and are probably exposed to high concentrations of ROS and nitric oxide. Consequently, they are more vulnerable to oxidation of lipids, proteins, DNA and carbohydrates. Normal reported values in this study are a basis for future studies of disease mechanisms involving oxidative stress and for future trials using antioxidant therapies for oxidative stress-related diseases in the pediatric field.
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Affiliation(s)
- Satoshi Tamura
- Department of Pediatrics, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
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Cvetković T, Vlahović P, Todorović M, Stanković M. Investigation of oxidative stress in patients with chronic tonsillitis. Auris Nasus Larynx 2009; 36:340-4. [DOI: 10.1016/j.anl.2008.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 09/14/2008] [Accepted: 10/17/2008] [Indexed: 11/28/2022]
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Gradoni G, Gradoni P. Role of an anti-acetonemic diet in reducing the need for tonsillectomy in children with recurrent tonsillitis. Auris Nasus Larynx 2008; 36:438-43. [PMID: 19010622 DOI: 10.1016/j.anl.2008.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Revised: 08/05/2008] [Accepted: 09/09/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the effectiveness of an anti-acetonemic diet in reducing the need for tonsillectomy especially in the first years of life in children with recurrent tonsillitis. METHODS From 2002 to 2005 we carried out a prospective randomized study enrolling 1200 children aged 2-10 who were referred to our outpatient services complaining of recurrent tonsillitis. Children were randomly assigned to the case group or to the control group. In case children, clinical signs of persistent ketosis were investigated and a hypolipidic anti-acetonemic diet was prescribed. We compared the mean age of children who underwent tonsillectomy and evaluated the association between an anti-acetonemic diet and avoidance of tonsillectomy. RESULTS The association between an anti-acetonemic diet and avoidance of tonsillectomy was statistically significant; the mean age of case children who underwent tonsillectomy resulted significantly higher than that of control children. CONCLUSION By prescribing an appropriate dietetic regimen we obtained a significant decrease in the number of tonsillectomies for recurrent tonsillitis and an increase in the mean age of the children treated surgically.
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Affiliation(s)
- G Gradoni
- Department of Otolaryngology, Santa Croce Hospital, Fano, Italy
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Sackesen C, Ercan H, Dizdar E, Soyer O, Gumus P, Tosun BN, Büyüktuncer Z, Karabulut E, Besler T, Kalayci O. A comprehensive evaluation of the enzymatic and nonenzymatic antioxidant systems in childhood asthma. J Allergy Clin Immunol 2008; 122:78-85. [PMID: 18485467 DOI: 10.1016/j.jaci.2008.03.035] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Revised: 02/29/2008] [Accepted: 03/28/2008] [Indexed: 12/28/2022]
Abstract
BACKGROUND Even though there is ample evidence on the oxidative stress in asthma, there is limited information on the antioxidant defense systems. OBJECTIVES To conduct a comprehensive evaluation of various components of both enzymatic and nonenzymatic antioxidants in a large group of children with asthma. METHODS A total of 164 children with mild asthma and 173 healthy children were included in the study. Levels of the enzymes glutathione peroxidase and superoxide dismutase were measured by using ELISA, whereas reduced glutathione, ascorbic acid, alpha-tocopherol, lycopene, beta-carotene, amino acids participating in glutathione synthesis, and amino acids susceptible to oxidation were measured by HPLC. All comparisons were adjusted for atopy, body mass index, smoke exposure, and pet ownership. RESULTS Levels of the enzymes glutathione peroxidase and superoxide dismutase and of the nonenzymatic components of the antioxidant system including reduced glutathione, ascorbic acid, alpha-tocopherol, lycopene, and beta-carotene were significantly lower in children with asthma compared with healthy controls (P < .001 for each). Of the amino acids contributing to glutathione synthesis, glycine and glutamine were significantly lower in children with asthma (P < .001). The majority of the amino acid susceptible to oxidative stress displayed lower levels in children with asthma (P < .05). CONCLUSION Childhood asthma is associated with significant decreases in various components of both enzymatic and nonenzymatic antioxidant defenses.
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Affiliation(s)
- Cansin Sackesen
- Pediatric Allergy and Asthma Unit, Hacettepe University School of Medicine, Ankara, Turkey.
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Kiroglu AF, Noyan T, Oger M, Kara T. Oxidants and antioxidants in tonsillar and adenoidal tissue in chronic adenotonsillitis and adenotonsillar hypertrophy in children. Int J Pediatr Otorhinolaryngol 2006; 70:35-8. [PMID: 15961164 DOI: 10.1016/j.ijporl.2005.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2005] [Accepted: 05/04/2005] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aim of the study is to determine the possible role of oxidants and antioxidants in the pathogenesis of chronic adenotonsillitis and adenotonsillar hypertrophy in children. PATIENTS AND METHODS The children were divided into infection and hypertrophy groups, which were comparable according to age and gender distribution. The infection group was consisted of 20 children with the diagnosis of chronic adenotonsillitis and the hypertrophy group was made up of 19 children with adenotonsillar hypertrophy to whom adenotonsillectomy was performed. Preoperative blood levels of erythrocyte MDA, serum MDA, erythrocyte catalase and serum catalase, and adenoidal and tonsillar tissue levels of MDA and catalase were studied. RESULTS There were significant increase in tonsil MDA, adenoid MDA, tonsil catalase and adenoid catalase levels in infection group (p<0.05). CONCLUSION Oxidants and antioxidants are found to have an important role in the pathogenesis of adenotonsillar hypertrophy and chronic adenotonsillitis. These findings strengthen the hypothesis that indicates adenotonsillar hypertrophy and chronic adenotonsillitis are different diseases of the same tissues.
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Affiliation(s)
- A Faruk Kiroglu
- Yüzüncü Yil University, School of Medicine, Department of Otolaryngology, Van, Turkey.
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