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Biyik I, Soysal C, Ince OUO, Durmus S, Oztas E, Keskin N, Isiklar OO, Karaagac OH, Gelisgen R, Uzun H. Prediction of Preterm Delivery Using Serum Ischemia Modified Albumin, Biglycan, and Decorin Levels in Women with Threatened Preterm Labor. Rev Bras Ginecol Obstet 2023; 45:e754-e763. [PMID: 38141595 DOI: 10.1055/s-0043-1772593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2023] Open
Abstract
OBJECTIVE The serum ischemia modified albumin (IMA), biglycan, and decorin levels of pregnant women who were hospitalized for threatened preterm labor were measured. METHODS Fifty-one consecutive pregnant women with a single pregnancy between the 24th and 36th weeks with a diagnosis of threatened preterm labor were included in the present prospective cohort study. RESULTS As a result of multivariate logistic regression analysis for predicting preterm delivery within 24 hours, 48 hours, 7 days, 14 days, ≤ 35 gestational weeks, and ≤ 37 gestational weeks after admission, area under the curve (AUC) (95% confidence interval [CI[) values were 0.95 (0.89-1.00), 0.93 (0.86-0.99), 0.91 (0.83-0.98), 0.92 (0.85-0.99), 0.82 (0.69-0.96), and 0.89 (0.80-0.98), respectively. In the present study, IMA and biglycan levels were found to be higher and decorin levels lower in women admitted to the hospital with threatened preterm labor and who gave preterm birth within 48 hours compared with those who gave birth after 48 hours. CONCLUSION In pregnant women admitted to the hospital with threatened preterm labor, the prediction preterm delivery of the combined model created by adding IMA, decorin, and biglycan in addition to the TVS CL measurement was higher than the TVS CL measurement alone. CLINICAL TRIAL REGISTRATION The present trial was registered at ClinicalTrials.gov, number NCT04451928.
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Affiliation(s)
- Ismail Biyik
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Cenk Soysal
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Ozlem Ulas Onur Ince
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
- Department of Statistics, Faculty of Arts and Sciences, Middle East Technical University, Ankara, Turkey
| | - Sinem Durmus
- Department of Medical Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Efser Oztas
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Nadi Keskin
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Ozben Ozden Isiklar
- Department of Medical Biochemistry, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Oğuz Han Karaagac
- Department of Obstetrics and Gynecology, School of Medicine, Kutahya Health Sciences University, Kutahya, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- Department of Medical Biochemistry, Faculty of Medicine, Istanbul Atlas University, Istanbul, Turkey
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Fazlıoğlu N, Uysal P, Durmus S, Yurt S, Gelisgen R, Uzun H. Significance of Plasma Irisin, Adiponectin, and Retinol Binding Protein-4 Levels as Biomarkers for Obstructive Sleep Apnea Syndrome Severity. Biomolecules 2023; 13:1440. [PMID: 37892122 PMCID: PMC10604585 DOI: 10.3390/biom13101440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
OBJECTIVE Obstructive sleep apnea syndrome (OSAS) is a common sleep disorder that is caused by the reduction or cessation of airflow in the upper airway. Irisin, retinol-binding protein-4 (RBP-4), and adiponectin are the three significant factors in the metabolic process of the human body. The objective of this study was to investigate whether plasma irisin, RBP-4, and adiponectin levels are associated with the severity of OSAS. METHODS According to inclusion and exclusion criteria, 125 patients with OSAS and 46 healthy, gender-matched controls were included in this study. The patients were classified according to the apnea hypopnea index (AHI) as 14 mild cases (5 < AHI < 15), 23 moderate OSAS cases (15 < AHI < 30), and 88 severe OSAS cases (AHI > 30). The plasma irisin, RBP-4, and adiponectin levels were measured and compared between groups. RESULTS RBP-4 levels were higher in severe OSAS compared to other groups, and irisin levels were significantly lower in severe OSAS compared to other groups. There was a negative correlation between irisin and RBP-4 (r = -0.421; p < 0.001), and irisin and AHI (r = -0.834; p < 0.001), and a positive correlation between irisin and adiponectin (r = 0.240; p = 0.002). There was a negative correlation between RBP-4 and adiponectin (r = -0.507; p < 0.001) and a positive correlation between RBP-4 and AHI (r = 0.473; p < 0.001). As a predictor of OSAS, adiponectin showed the highest specificity (84.8%) and RBP-4 the highest sensitivity (92.0%). CONCLUSION Circulating adiponectin, irisin, and RBP-4 may be new biomarkers in OSAS patients in addition to risk factors such as diabetes, obesity, and hypertension. When polysomnography is not available, these parameters and clinical data can be used to diagnose the disease. As a result, patients with an AHI score greater than thirty should be closely monitored for metabolic abnormalities.
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Affiliation(s)
- Nevin Fazlıoğlu
- Department of Pulmonary Medicine, Namık Kemal University, 59010 Tekirdag, Turkey;
| | - Pelin Uysal
- Maslak Hospital, Faculty of Medicine, Department of Pulmonary Medicine, Acibadem Mehmet Ali Aydinlar University, 34752 Istanbul, Turkey;
| | - Sinem Durmus
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, 34320 Istanbul, Turkey; (S.D.); (R.G.)
| | - Sibel Yurt
- Basaksehir Cam and Sakura State Hospital, Department of Pulmonary Medicine, University of Health Sciences, 34480 Istanbul, Turkey;
| | - Remise Gelisgen
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, 34320 Istanbul, Turkey; (S.D.); (R.G.)
| | - Hafize Uzun
- Department of Biochemistry, Faculty of Medicine, İstanbul Atlas University, 34403 Istanbul, Turkey
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Dogan Z, Ergun DD, Durmus S, Sahin H, Senturk GE, Gelisgen R, Senyigit A, Uzun H. Empagliflozin and sacubitril/valsartan reverse methotrexate cardiotoxicity by repressing oxidative stress and hypoxia in heart embryonic H9c2 cardiomyocytes - the role of morphology of mitochondria observed on electron microscopy. Eur Rev Med Pharmacol Sci 2023; 27:3979-3992. [PMID: 37203822 DOI: 10.26355/eurrev_202305_32304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVE Oxidative stress and hypoxia play an important role in the pathogenesis of various cardiovascular diseases. We aimed to evaluate the effectiveness of sacubitril/valsartan (S/V) and Empagliflozin (EMPA) on hypoxia-inducible factor-1α (HIF-1α) and oxidative stress in H9c2 rat embryonic cardiomyocyte cells. MATERIALS AND METHODS BH9c2 cardiomyocyte cells were treated with methotrexate (MTX) (10-0.156 μM), empagliflozin (EMPA; 10-0.153 µM) and sacubitril/valsartan (S/V; 100-1.062 µM) for 24, 48 and 72 h. The half maximum inhibitory concentration (IC50) and half maximum excitation concentration (EC50) values of MTX, EMPA and S/V were determined. The cells under investigation were exposed to 2.2 μM MTX before treatment with 2 μM EMPA and 25 μM S/V. The cell viability, lipid peroxidation, oxidation of proteins and antioxidant parameters were measured while morphological changes were also observed by transmission electron microscopy (TEM). RESULTS The results showed that treatment with 2 µM EMPA, 25 µM S/V or their combination produced a protective effect against the reduction in cell viability caused by 2.2 µM MTX. While HIF-1α levels plunged to their lowest with S/V treatment, oxidant parameters dipped, and antioxidant parameters soared to their highest level with S/V and EMPA combination treatment. A negative correlation was found between HIF-1α and total antioxidant capacity in the S/V treatment group. CONCLUSIONS A significant decrease in HIF-1α and oxidant molecules together with an enhancement in antioxidant molecules and normalization of the mitochondria morphology as observed on electron microscopy in S/V and EMPA-treated cells were detected. Although S/V and EMPA have both protective effects against cardiac ischemia and oxidative damage, this effect may be increased more with S/V treatment alone compared to combined treatment.
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Affiliation(s)
- Z Dogan
- Department of Cardiology, Faculty of Medicine, Istanbul Atlas University, Istanbul, Turkey.
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Dogan Z, Durmus S, Ergun DD, Gelisgen R, Uzun H. Ranolazine exhibits anti-inflammatory and antioxidant activities in H9c2 cardiomyocytes. Eur Rev Med Pharmacol Sci 2023; 27:2953-2963. [PMID: 37070896 DOI: 10.26355/eurrev_202304_31927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the effectiveness of ranolazine on hypoxia-inducible factor-1α (HIF-1α) and oxidative stress in H9c2 cardiomyocyte cells. MATERIALS AND METHODS We have assessed the effects of increasing concentrations of methotrexate (MTX) and ranolazine on proliferation of H9c2 rat cardiomyocyte cells by MTT assay. Malondialdehyde (MDA) protein oxidation [advanced oxidation protein products (AOPPs)], lipid hydroperoxide (LOOH) and xanthine oxidase (XO) activity as oxidative stress markers and HIF-1α levels increased and total thiol (T-SH), catalase (CAT) activity and total antioxidant capacity (TAC) antioxidant capacity markers decreased in MTX-treated cells compared to control cells. RESULTS Oxidative stress markers decreased, and antioxidant capacity markers increased in cells treated with ranolazine alone compared to control cells. For all parameters, we showed that the levels of oxidant, antioxidant markers and HIF-1α in cells treated with MTX and ranolazine together reached the level of the control group, and ranolazine reversed the oxidative damage caused by MTX. CONCLUSIONS The cell viability increased the levels of oxidant and prooxidant markers and decreased the levels of antioxidant markers decreased in H9c2 cardiomyocytes induced by oxidative stress. These results suggest that ranolazine may protect the cardiomyocytes from MTX-induced oxidative damage. The effects of ranolazine could result from its antioxidant properties.
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Affiliation(s)
- Z Dogan
- Department of Cardiology, Faculty of Medicine, Istanbul Atlas University, Istanbul, Turkey.
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Uysal P, Yüksel A, Durmus S, Cuhadaroglu Ç, Gelisgen R, Uzun H. Can circulating oxidative stress-related biomarkers be used as an early prognostic marker for COVID-19? Front Med (Lausanne) 2023; 10:1041115. [PMID: 36844214 PMCID: PMC9948026 DOI: 10.3389/fmed.2023.1041115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Background Oxidative stress plays an important role in the pathogenesis of many diseases. This study aimed to investigate the relationship between nuclear factor kappa B (NF-κB) and oxidative stress and the severity of the disease in new COVID-19 patients, and, to compare the levels of NF-κB, oxidized LDL (oxLDL), and lectin-like oxidized-LDL receptor-1 (LOX-1) with oxygen saturation, which is an indicator of the severity parameters of the disease in COVID-19 patients. Methods In this prospective study, 100 COVID-19 patients and 100 healthy subjects were selected. Results LOX-1, NF-κB, and oxLDL were found to be higher in COVID-19 patients compared to the healthy subjects (p < 0.001 for all). According to the results of correlation analysis, it was found that there was no significant relationship between oxygen saturation and LOX-1, NF-κB and oxLDL parameters. There was significant relationship between oxLDL with LOX-1 and NF-κB in patients with COVID-19 disease. ROC analysis results of the highest discrimination power were oxLDL (AUC: 0.955, CI: 0.904-1.000; sensitivity: 77%, and specificity: 100%, for cutoff: 127.944 ng/l) indicating COVID-19. Conclusion Oxidative stress plays an essential role in COVID-19. NF-κB, oxLDL, and LOX-1 seem to represent good markers in COVID-19. Our study also showed that oxLDL has the highest power in distinguishing patients with COVID-19 from the healthy subjects.
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Affiliation(s)
- Pelin Uysal
- Department of Chest Diseases, Acibadem Mehmet Ali Aydinlar University Faculty of Medicine, Maslak Hospital, Istanbul, Turkey
| | - Arzu Yüksel
- Department of Biochemistry, Acibadem Mehmet Ali Aydinlar University Faculty of Medicine, Atakent Hospital, Istanbul, Turkey
| | - Sinem Durmus
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Çaglar Cuhadaroglu
- Department of Chest Diseases, Acibadem University Faculty of Medicine, Altunizade Hospital, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- Department of Medical Biochemistry, Faculty of Medicine, İstanbul Atlas University, Istanbul, Turkey,*Correspondence: Hafize Uzun, ✉
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Kıraç UI, Demır E, Ozkan H, Sahtıyancı B, Uzun H, Ekıncı I, Buyukkaba M, Durmus S, Akarsu M, Gelisgen R, Tabak O. The Maternal Serum Preptin Levels in the Pathogenesis and Diagnosis of Gestational Diabetes Mellitus. J Med Biochem 2022; 42:311-317. [PMID: 36987416 PMCID: PMC10040191 DOI: 10.5937/jomb0-36287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 10/25/2022] [Indexed: 12/05/2022] Open
Abstract
Background: Gestational diabetes mellitus (GDM) is a metabolic disorder that occurs during pregnancy that increases both maternal and fetal mortality and morbidity. We investigated whether there is a change in circulating levels of preptin, a new peptide secreted from pancreatic beta cells, due to GDM in pregnant women. The relationship between serum preptin levels with insulin and other metabolic parameters was also evaluated in these subjects. Methods: Eighty-five patients diagnosed as GDM and 89 healthy pregnant women with 75 mg oral glucose tolerance test (OGTT) was assessed in terms of serum preptin levels. Results: The serum preptin levels of the GDM group were significantly higher than those of the control group (p=0.001; p < 0.01). For the cut-off value of preptin measurement of 335.3 ng/L, the sensitivity was 97.65%, specificity was 87.64%, positive predictive value was 88.3% and negative predictive value was 97.5%. The risk of developing the disease is 294.273 times higher in patients with preptin level of 335.3 and above. Conclusions: We think that the reason for the increase in serum preptin levels in GDM is probably the response to glucose. The current results indicate that preptin plays an important role in elucidating the pathology of GDM. In addition, the search for a practical marker for the diagnosis of GDM suggests that the measurement of preptin level is promising.
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Affiliation(s)
- Utku Irem Kıraç
- Health Sciences University, Sancaktepe Prof. Dr. lhan Varank Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Esra Demır
- Bagcılar Medipol Mega University, Department of Internal Medicine, Istanbul, Turkey
| | - Hanişe Ozkan
- Health Sciences University, Kanuni Sultan Suleyman Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Berrak Sahtıyancı
- Bahcelievler Haspital, Department of Internal Medicine, Istanbul, Turkey
| | - Hafize Uzun
- Istanbul Atlas University, Faculty of Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Iskender Ekıncı
- Bezmialem Vakif University, Faculty of Medicine, Department of Internal Medicine, Istanbul, Turkey
| | - Mitat Buyukkaba
- Health Sciences University, Kanuni Sultan Suleyman Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Sinem Durmus
- Istanbul University-Cerrahpasa, Faculty of Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Murat Akarsu
- Health Sciences University, Kanuni Sultan Suleyman Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Remise Gelisgen
- Istanbul University-Cerrahpasa, Faculty of Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Omur Tabak
- Health Sciences University, Kanuni Sultan Suleyman Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
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Durmus S, Gelisgen R, Uzun H. DNA Methylation Biomarkers in Cancer: Current Clinical Utility and Future Perspectives. Biomark Med 2022. [DOI: 10.2174/9789815040463122010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Epigenetic alterations are related to inherited but reversible changes in
modifications that regulate gene activity beyond the DNA sequence. DNA methylation
is the best characterized epigenetic modification, controlling DNA stability, DNA
structure, transcription, and regulation, contributing to normal development and
differentiation. In this section, we first discuss the cellular functions of DNA
methylation and focus on how this fundamental biological process is impaired in
cancer. Changes in DNA methylation status in cancer have been heralded as promising
targets for the development of diagnostic, prognostic, and predictive biomarkers due to
their noninvasive accessibility in bodily fluids (such as blood, urine, stool),
reversibility, stability, and frequency. The absence of markers for definitive diagnosis
of most types of cancer and, in some cases, DNA methylation biomarkers being more
specific and sensitive than commonly used protein biomarkers indicate a strong need
for continued research to expand DNA methylation markers. Although the information
on changes in DNA methylation status in cancer and research on its clinical relevance
is rapidly increasing, the number of DNA methylation biomarkers currently available
as commercial tests is very small. Here, we focus on the importance of DNA
methylation location and target genes likely to be developed in the future for the
development of biomarkers in addition to existing commercial tests. Following a
detailed study of possible target genes, we summarize the current clinical application
status of the most studied and validated DNA methylation biomarkers, including
SEPT9, SDC2, BMP3, NDRG4, SFRP2, TFPI2, VIM and MGMT.
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Affiliation(s)
- Sinem Durmus
- Cerrahpasa Faculty of Medicine, Istanbul University,Department of Biochemistry,Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul,Turkey
| | - Remise Gelisgen
- Cerrahpasa Faculty of Medicine, Istanbul University,Department of Biochemistry,Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul,Turkey
| | - Hafize Uzun
- Department of Biochemistry, Faculty of Medicine, Istanbul Atlas University, Istanbul,Turkey
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Durmus S, Atahan E, Avci Kilickiran B, Onal B, Cakatay U, Gelisgen R, Uzun H. Significance of Cyclooxgenase-2 gene polymorphism and related miRNAs in pulmonary arterial hypertension. Clin Biochem 2022; 107:33-39. [PMID: 35724768 DOI: 10.1016/j.clinbiochem.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/23/2022] [Accepted: 06/06/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Pulmonary arterial hypertension (PAH) is a rare disease with a poor prognosis. The suppression of cyclooxygenase-2 (COX-2) expression has been known to impair vascular function in endothelial cells; however, the epigenetic factors that cause this are largely obscure. Our aim in this study was to examine the polymorphisms in the gene for COX-2 (PTGS2) and related miRNAs regulating its level in a single-center cohort of patients with PAH. METHOD In this study, three SNPs and miRNAs (rs5275, rs689470, rs20417, miR-26b-5p, miR-146a-5p, and miR-101-5p) in the PTGS2 were screened in PAH and controls by qPCR. In addition, the COX-2 level was determined by immunoassay to examine the effects of epigenetic factors on its expression levels. RESULTS The non-dominant genotypes of rs20417 and rs5275 were found to be related to PAH (OR = 8.56, 95% CI = 3.39-21.63, p < 0.0001 and OR = 7.82, 95% CI = 3.30-18.53, p < 0.0001, respectively). We also observed a significant increase in the miR-26b-5p and miR-146a-5p levels in PAH patients (2.18 and 2.35-fold, respectively; for both, p < 0.05). In addition, it was found that SNPs influenced the COX-2, miR-26b-5p, and miR-146a-5p levels in PAH. A negative correlation was also found between COX-2 levels and miR-26b-5p and miR-146a-5p. CONCLUSIONS As conventional drug therapies may cause lower COX-2 levels, the development of new genetic or epigenetic biomarkers is crucially important for early diagnosis and prognosis. The presence of minor alleles for rs5275 and rs689470 might also be considered as a significant risk factor for developing PAH. Furthermore, locus-specific miRNAs, such as miR-26b-5p and miR-146a-5p, seem to play a critical role in the regulation of PTGS2 expression.
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Affiliation(s)
- Sinem Durmus
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ersan Atahan
- Department of Chest Diseases, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Burcak Avci Kilickiran
- Department of Cardiology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Burak Onal
- Department of Medical Pharmacology, Medical Faculty, Biruni University, Istanbul, Turkey
| | - Ufuk Cakatay
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey; Department of Medical Biochemistry, Faculty of Medicine, İstanbul Atlas University, Istanbul, Turkey.
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Turan H, Vitale SG, Kahramanoglu I, Della Corte L, Giampaolino P, Azemi A, Durmus S, Sal V, Tokgozoglu N, Bese T, Arvas M, Demirkiran F, Gelisgen R, Ilvan S, Uzun H. Diagnostic and prognostic role of TFF3, Romo-1, NF-кB and SFRP4 as biomarkers for endometrial and ovarian cancers: a prospective observational translational study. Arch Gynecol Obstet 2022; 306:2105-2114. [PMID: 35461390 PMCID: PMC9633503 DOI: 10.1007/s00404-022-06563-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/01/2022] [Indexed: 12/24/2022]
Abstract
Purpose This study aimed to evaluate trefoil factor 3 (TFF3), secreted frizzled-related protein 4 (sFRP4), reactive oxygen species modulator 1 (Romo1) and nuclear factor kappa B (NF-κB) as diagnostic and prognostic markers of endometrial cancer (EC) and ovarian cancer (OC). Methods Thirty-one patients with EC and 30 patients with OC undergone surgical treatment were enrolled together with 30 healthy controls in a prospective study. Commercial ELISA kits determined serum TFF-3, Romo-1, NF-кB and sFRP-4 concentrations. Results Serum TFF-3, Romo-1 and NF-кB levels were significantly higher in patients with EC and OC than those without cancer. Regarding EC, none of the serum biomarkers differs significantly between endometrial and non-endometrioid endometrial carcinomas. Mean serum TFF-3 and NF-кB levels were significantly higher in advanced stages. Increased serum levels of TFF-3 and NF-кB were found in those with a higher grade of the disease. Regarding OC, none of the serum biomarkers differed significantly among histological subtypes. Significantly increased serum levels of NF-кB were observed in patients with advanced-stage OC than those with stage I and II diseases. No difference in serum biomarker levels was found between those who had a recurrence and those who had not. The sensibility and specificity of these four biomarkers in discriminating EC and OC from the control group showed encouraging values, although no one reached 70%. Conclusions TFF-3, Romo-1, NF-кB and SFRP4 could represent new diagnostic and prognostic markers for OC and EC. Further studies are needed to validate our results.
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Affiliation(s)
- Hasan Turan
- Department of Gynecologic Oncology, Health Science University, Cam Sakura Training and Research Hospital, Istanbul, Turkey
| | - Salvatore Giovanni Vitale
- Obstetrics and Gynecology Unit, Department of General Surgery and Medical Surgical Specialties, University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
| | | | - Luigi Della Corte
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples, Naples, Italy
| | - Pierluigi Giampaolino
- Department of Public Health, University of Naples Federico II, Via Sergio Pansini, Naples, Italy
| | - Asli Azemi
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sinem Durmus
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Veysel Sal
- Department of Obstetrics and Gynecology, Memorial Bahcelievler Hospital, Istanbul, Turkey
| | - Nedim Tokgozoglu
- Department of Gynecologic Oncology, Okmeydanı Training and Research Hospital, Istanbul, Turkey
| | - Tugan Bese
- Department of Gynecologic Oncology, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Macit Arvas
- Department of Gynecologic Oncology, American Hospital, Istanbul, Turkey
| | - Fuat Demirkiran
- Department of Gynecologic Oncology, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sennur Ilvan
- Department of Pathology, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- Department of Biochemistry, School of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Uysal P, Teksoz D, Aksan H, Durmus S, Uslu-Besli L, Cuhadaroglu C, Gelisgen R, Simsek G, Uzun H. Relationship between serum sialic acid levels and prolidase activity with airflow obstruction in patients with COPD. Medicine (Baltimore) 2022; 101:e28949. [PMID: 35356903 PMCID: PMC10684178 DOI: 10.1097/md.0000000000028949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/09/2022] [Indexed: 11/26/2022] Open
Abstract
ABSTRACT Our aim in this study was to evaluate the prognostic significance of sialic acid (SA) and prolidase activity and to evaluate the association between airflow obstruction severity and these parameters in chronic obstructive pulmonary disease (COPD) patients.Ninety-four patients (84 M, 10 F) and 34 healthy subjects (19 M, 15 F) were included into the study. COPD staging was performed to COPD patients according to new global initiative for chronic obstructive lung disease criteria which includes pulmonary function tests, symptoms and hospitalization; COPD patients were divided into 4 subgroups as group A (n = 25), group B (n = 19), group C (n = 20), and group D (n = 28).SA and C-reactive protein levels were significantly higher than the control group in all COPD groups. SA levels were significantly higher in group B patients than the control and group A. Prolidase activity was significantly lower than control group in total COPD groups (P < .05). There was a weak negative correlation between SA and forced vital capacity (r = -0.217, P = .038) and forced expiratory volume in 1 second (FEV1) (r = -0.210, P = .045), whereas weak positive correlation was present between SA and Creactive protein (r = 0.247, P = .018) in all patient groups. There was weak positive correlation between prolidase and FEV1 (r = 0.222, P = .033) and FEV1/forced vital capacity (r = 0.230, P = .027).Our study shows that systemic inflammation, prolidase activity, and SA levels in stable COPD patients are associated with airflow obstruction severity. In addition to the prolidase activity; SA levels might be associated with inflammation.
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Affiliation(s)
- Pelin Uysal
- Department of Chest Diseases, Acıbadem Mehmet Ali Aydınlar University Faculty of Medicine, Maslak Hospital, Istanbul, Turkey,Department of Biochemistry, Sisli Hamidiye Etfal Education and Research Hospital, Istanbul, Turkey,Department of Biochemistry, Faculty of Medicine, Halic University, Istanbul, Turkey,Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,Department of Nuclear Medicine, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,Department of Physiology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,Department of Medical Biochemistry, Faculty of Medicine, Istanbul Atlas University, Istanbul, Turkey
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Soyman Z, Durmus S, Ates S, Simsek G, Sozer V, Kundaktepe B, Kurtulus D, Gelisgen R, Sal V, Uzun H. CIRCULATING MIR-132, MIR-146A, MIR-222, AND MIR-320 EXPRESSION IN DIFFERENTIAL DIAGNOSIS OF WOMEN WITH POLYCYSTIC OVARY SYNDROME. Acta Endocrinol (Buchar) 2022; 18:13-19. [PMID: 35975247 PMCID: PMC9365421 DOI: 10.4183/aeb.2022.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE The aim of the study was to investigate whether the circulating miR-132, miR-146a, miR-222, and miR-320 levels are used in the differential diagnosis of women with polycystic ovary syndrome (PCOS) and healthy women. METHODS This prospective case-control study included 50 women with PCOS and age- and body mass index- matched 50 healthy controls. The hormone and lipid profiles, levels of microRNAs (miRNAs), and parameters of carbohydrate metabolism were measured. RESULTS Expression levels of miRNAs were assessed using the two-step quantitative real-time polymerase chain reaction. Circulating miR-132, miR-146a and miR-222 levels were significantly downregulated in the PCOS group compared with the control group. The miR-320 levels did not differ between the two groups. Free testosterone was negatively correlated with miR-132, miR-146a and miR-222. Insulin was negatively correlated with miR-132 and miR-146a. CONCLUSIONS The results of the study revealed that miRNA expression, may suggest a possible distinction between healthy women and PCOS patients. miR-132, miR-146a, and miR-222 may have key functions in the pathogenesis of PCOS.
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Affiliation(s)
- Z. Soyman
- Istanbul Education and Research Hospital, Dept. of Obstetrics & Gynecology, Istanbul, Turkey
| | - S. Durmus
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Dept. of Biochemistry, Istanbul, Turkey
| | - S. Ates
- Bezmialem Vakif University School of Medicine, Dept. of Obstetrics & Gynecology, Istanbul, Turkey
| | - G. Simsek
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Dept. of Physiology, Istanbul, Turkey
| | - V. Sozer
- Yildiz Technical University, Dept. of Biochemistry, Istanbul, Turkey
| | - B.P. Kundaktepe
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Dept. of General Surgery, Istanbul, Turkey
| | - D. Kurtulus
- Istanbul University Cerrahpasa, Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - R. Gelisgen
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Dept. of Biochemistry, Istanbul, Turkey
| | - V. Sal
- Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Dept. of Obstetrics & Gynecology, Istanbul, Turkey
| | - H. Uzun
- Istanbul Atlas University, Faculty of Medicine, Dept. of Medical Biochemistry, Istanbul, Turkey
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Kundaktepe BP, Sozer V, Kundaktepe FO, Durmus S, Papila C, Uzun H, Simsek G, Gelisgen R. Association between Bone Mineral Density and Bone Turnover Markers in Breast Cancer Patients and Bone-Only Metastasis. Medicina (Kaunas) 2021; 57:medicina57090880. [PMID: 34577803 PMCID: PMC8468483 DOI: 10.3390/medicina57090880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022]
Abstract
Background and Objectives: The aim of this study was to determine the influence of bone turnover markers, namely the N-terminal cross-linking telopeptide (NTx) and alpha C-terminal cross-linking telopeptide of type I collagen (α-CTx), in detecting bone metastasis (bone-only) in breast cancer (BC) patients, as well as to determine whether this effect is related to changes in bone mineral density (BMD). Materials and Methods: The participants in this study comprised 30 postmenopausal BC patients with bone metastases (age range: 59.56 ± 9.02), 20 postmenopausal BC patients without bone metastases (age range: 55.30 ± 11.55), and 20 healthy postmenopausal female controls (age range: 55.55 ± 5.85). Bone turnover markers (serum NTx and urine α-CTx) were measured using the ELISA method. A densitometer using dual-energy X-ray absorptiometry (DEXA) was used to analyze the BMD, and tumor markers were measured using the chemiluminescent immunometric assay. Results: The corresponding levels of serum NTx (p = 0.004), parathyroid hormone (PTH) (p = 0.001), and urine α-CTx (p < 0.001) of BC patients were found to be higher than the standard levels. After the BC patients were divided into subgroups on the basis of the presence of metastasis, the urine α-CTx levels (p = 0.001) were seen to be at critically high levels in those patients suffering from BC with metastasis. Though the BMD values in the lumbar spine (p < 0.001) and femoral neck (p = 0.001) were found to be significantly low in BC patients, no statistically substantial difference in the BMD levels of BC patients suffering from metastasis was observed. It was observed that urine α-CTx (specificity: 70%; sensitivity: 85%) values are critical factors that differentiate BC patients with metastasis from BC patients without metastasis. Conclusions: We found that alterations in bone turnover could be detected by using the values of urine α-CTx while differentiating BC patients with metastasis from BC patients without metastasis. Using the biochemical markers of bone turnover and BMD together would be pertinent for determining the level of metastasis present and examining the efficiency of bone density preservation therapy. Ideally, BMD measurement would be evaluated together with biochemical markers.
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Affiliation(s)
- Berrin Papila Kundaktepe
- Department of General Surgery, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey;
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University, 34220 Istanbul, Turkey;
| | - Fatih Orkun Kundaktepe
- Department of Internal Medicine, Gaziosmanpaşa Taksim Research and Training Hospital, 34433 Istanbul, Turkey;
| | - Sinem Durmus
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey; (S.D.); (R.G.)
| | - Cigdem Papila
- Department of Internal Medicine, Oncology Division, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey;
| | - Hafize Uzun
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey; (S.D.); (R.G.)
- Correspondence: ; Tel.: +90-212-414-30-56; Fax: +90-212-633-29-87
| | - Gonul Simsek
- Department of Physiology, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey;
| | - Remise Gelisgen
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University—Cerrahpasa, 34098 Istanbul, Turkey; (S.D.); (R.G.)
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Kundaktepe BP, Durmus S, Papila C, Velidedeoglu M, Gelisgen R, Uzun H. The Effect of Menstrual Cycle Phase on the Prognostic Factors in Patients with Premenopausal Breast Tumors. Chirurgia (Bucur) 2021; 116:209-213. [PMID: 33950817 DOI: 10.21614/chirurgia.116.2.209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2021] [Indexed: 11/23/2022]
Abstract
Background: Estrogen receptor and progesterone receptor positivity and c-erbB2 gene expression levels are important in determining breast cancer development and aggression. Although the importance of hormonal factors in tumor cell proliferation, migration and differentiation is increasing, it needs more evidence. The effect of BC surgery timing during the menstrual cycle on prognosis remains controversial. In order to clarify this hypothesis, we aimed to determine the importance of adjusting the timing of surgery according to the menstrual cycle by examining the relationship between estrogen receptor, progesterone receptor, c-erbB2 gene and the menstrual cycle phase in patients with premenopausal breast cancer. Method: Our study was designed retrospectively. 50 patients with premenopausal breast cancer who were operated were included in the study. Results: Our results showed that the patients in the luteal phase had higher ER positivity, PR positivity and c-erbB2 negativity, and the number of metastatic axillary lymph nodes was lower than the patients in follicular phase. Conclusions: BC surgery during the luteal phase in pre-menopausal women is associated with a better clinical outcome. Although larger-scale studies are needed, our results suggest that better results can be achieved by performing surgery in luteal phase in BC patients during premenopausal period.
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Kundaktepe BP, Durmus S, Cengiz M, Kundaktepe FO, Sozer V, Papila C, Gelisgen R, Uzun H. The Significance of Insulin Resistance in Nondiabetic Breast Cancer Patients. J Endocrinol Metab 2021. [DOI: 10.14740/jem729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kundaktepe BP, Sozer V, Durmus S, Kocael PC, Kundaktepe FO, Papila C, Gelisgen R, Uzun H. The evaluation of oxidative stress parameters in breast and colon cancer. Medicine (Baltimore) 2021; 100:e25104. [PMID: 33725987 PMCID: PMC7982186 DOI: 10.1097/md.0000000000025104] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 02/19/2021] [Indexed: 01/05/2023] Open
Abstract
Our aim in this study was to investigate the relationship between serum ischemia modified albumin (IMA) levels with oxidative stress parameters [protein carbonyl (PCO), advanced protein oxidation products (AOPPs), malondialdehyde (MDA), total nitric oxide (NOx), prooxidant-antioxidant balance (PAB), and ferric reducing of antioxidant power (FRAP)] in breast cancer (BC) and colon cancer (CC).In total, 90 patients undergoing surgical treatment for BC (n = 45) or CC (n = 45) and 35 healthy controls were included in this cross-sectional study.The serum PCO, AOPPs, MDA, NOx, PAB, and IMA levels were all statistically significantly higher in the cancer patients than in the control group. MDA, NOx, and PAB levels were significantly lower in the BC group than in the CC group. FRAP values were statistically significantly lower in both the CC group and the BC group compared to the control. IMA showed a weak positive correlation with CA-19.9 (r = 0.423 P = .007) but a moderate positive correlation with tumor size in the CC group. IMA showed a positive correlation with metastasis, grade, and HER2 and a negative correlation with ER and PR in the BC group.Oxidative stress is a key player in the development of solid malignancies. Cancer development is a multistage process, and oxidative stress caused by the production of ROS/RNS in the breast and colon may predispose individuals to BC and CC. Patients with BC and CC had an impaired oxidative/antioxidant condition that favored oxidative stress. The ROC analysis indicated that IMA sensitivity above 80% could be used as a secondary biomarker in diagnosis.
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Affiliation(s)
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University
| | - Sinem Durmus
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | - Pinar Cigdem Kocael
- Department of General Surgery, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | | | - Cigdem Papila
- Department of Internal Medicine, Division of Oncology, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
| | - Hafize Uzun
- Department of Medical Biochemistry, Faculty of Cerrahpasa Medicine, Istanbul University-Cerrahpasa
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Papila KB, Sozer V, Cigdem KP, Durmus S, Kurtulus D, Papila C, Gelisgen R, Uzun H. Circulating nuclear factor-kappa B mediates cancer-associated inflammation in human breast and colon cancer. J Med Biochem 2021; 40:150-159. [PMID: 33776564 PMCID: PMC7982282 DOI: 10.5937/jomb0-27128] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022] Open
Abstract
Background Inflammation is recognized as a hallmark feature of cancer development and progression. The aim of our study was to investigate the significance of serum nuclear factor kappa-B (NF-κB) levels as a circulating marker in the monitoring of inflammation in breast and colon cancer; to show the relationship between NF-κB with inflammatory parameters as tumour necrosis factor-α (TNF-α), soluble TNF-related apoptosis-inducing ligand (sTRAIL), interleukin-6 (IL-6), pentraxin-3 (PTX-3), procalcitonin (PCT), and C-reactive protein (CRP) levels. Methods Serum NF-κB, TNF-α, sTRAIL, IL-6, PTX-3, PCT, and serum CRP levels were measured using enzyme-linked immunosorbent assay (ELISA) in 40 patients with breast cancer, 40 patients with colon cancer and 30 healthy controls. Results The serum NF-κB, TNF-α, IL-6, PTX-3, PCT, and serum CRP concentration was significantly higher, and the serum sTRAIL concentration was significantly lower in the patients with breast and colon cancer than in healthy controls. NF-κB was positively correlated with CRP and negatively correlated with sTRAIL. Conclusions These results suggest that increased NF-κB may decrease the clinical efficacy of sTRAIL in solid tumour cells. There is a relationship between inflammation and carcinogenesis so that the development of cancer occurs with chronic inflammation in breast and colon. The study results have shown that colon and breast cancer patients have increased systemic inflammation, as measured by increased circulating cytokines, and acute-phase proteins, or by abnormalities in circulating cells. NF-κB may combine with other markers of the systemic inflammatory response in prognostic scores in cancer. In addition to surgical resection of the tumour, and conventional radio and chemotherapy for cancer treatment, the use of sTRAIL or other agonists for cancer therapy appeared a new potential therapy.
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Affiliation(s)
- Kundaktepe Berrin Papila
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of General Surgery, Istanbul, Turkey
| | - Volkan Sozer
- Yildiz Technical University, Department of Biochemistry, Istanbul, Turkey
| | - Kocael Pinar Cigdem
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of General Surgery, Istanbul, Turkey
| | - Sinem Durmus
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Dilara Kurtulus
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Istanbul, Turkey
| | - Cigdem Papila
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of Internal Medicine, Division of Oncology, Istanbul, Turkey
| | - Remise Gelisgen
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of Medical Biochemistry, Istanbul, Turkey
| | - Hafize Uzun
- Istanbul University-Cerrahpasa, Faculty of Cerrahpasa Medicine, Department of Medical Biochemistry, Istanbul, Turkey
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Aksan H, Kundaktepe BP, Sayili U, Velidedeoglu M, Simsek G, Koksal S, Gelisgen R, Yaylim I, Uzun H. Circulating miR-155, let-7c, miR-21, and PTEN levels in differential diagnosis and prognosis of idiopathic granulomatous mastitis and breast cancer. Biofactors 2020; 46:955-962. [PMID: 32941675 DOI: 10.1002/biof.1676] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/06/2020] [Indexed: 12/13/2022]
Abstract
This study investigates whether the circulating miR-155, let-7c, miR-21, and PTEN levels to be used in the differential diagnosis of patients with idiopathic granulomatous mastitis (IGM) and breast cancer (BC). Forty-five patients with BC, 50 patients with IGM, and 48 healthy volunteers were included in the study. Serum miR-21 expression was significantly higher in BC (fold change = 2.42) and IGM group (fold change = 1.33) compared to control (p < .001). Serum miR-155 and let-7c expression levels were significantly lower in both groups compared to the control group (p < .001). miR-21 expression in BC was significantly higher than IGM (fold change = 1.976; p < .001). PTEN levels in BC were significantly higher than IGM (p < .001) and significantly lower than the control group (p < .001); the IGM group was significantly lower than the control group (p < .001). In addition to radiological data, serum miR-21 and PTEN levels may be noninvasive biomarkers that can help differentiate IGM from BC. The results of the study will lead to future studies in the differential diagnosis of IGM and BC.
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Affiliation(s)
- Hulya Aksan
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
- Department of Medical Biochemistry, Faculty of Medicine, Haliç University, Istanbul, Turkey
| | - Berrin Papila Kundaktepe
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Ugurcan Sayili
- Department of Public Health, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Mehmet Velidedeoglu
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Gonul Simsek
- Department of Physiology, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Selcuk Koksal
- Department of Public Health, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Ilhan Yaylim
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Hafize Uzun
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University - Cerrahpasa, Istanbul, Turkey
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Gokce AH, Gokce FS, Durmus S, Hajiyeva R, Ersoz F, Gelisgen R, Uzun H. The effect of nitric oxide, endothelial nitric oxide synthetase, and asymmetric dimethylarginine in hemorrhoidal disease. ACTA ACUST UNITED AC 2020; 66:1128-1133. [PMID: 32935809 DOI: 10.1590/1806-9282.66.8.1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 06/28/2020] [Indexed: 08/30/2023]
Abstract
AIM The aim of this study was to examine the roles of nitric oxide (NOx), endothelial nitric oxide synthetase (eNOS), and asymmetric dimethylarginine (ADMA), which is the major endogenous inhibitor of nitric oxide synthases (NOS), in the pathophysiology of hemorrhoidal disease. METHODS This study included 54 patients with grades 3 and 4 internal hemorrhoidal disease and 54 patients without the disease who attended the General Surgery Clinic. NOx, eNOS, and ADMA levels were measured with the Enzyme-Linked ImmunoSorbent Assay (ELISA) method. RESULTS The patients had higher NO and eNOS levels and lower ADMA levels than the control subjects (p<0.001). A significant highly positive correlation was found between NO and eNOS (p<0.001). Nevertheless, there was a highly negative correlation between ADMA and NO-eNOS(p<0.001, p<0.001). CONCLUSION This preliminary study reveals that higher NOx and eNOS activities and lower ADMA levels in the rectal mucosa are observed in patients with hemorrhoidal disease than in those with normal rectal tissue. The imbalance between endothelium-derived relaxing factors, such as NO and endogenous competitive inhibitor of NOS, ADMA, may cause hemorrhoidal disease. Our study proposes that hemorrhoids display apparent vascular dilatation and present with bleeding or swelling. ADMA is an effective NOS inhibitor and may be a promising therapeutic option for hemorrhoidal disease.
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Affiliation(s)
- Aylin Hande Gokce
- . Assistant Professor. Department of General Surgery, Istanbul Atlas University Faculty of Medicine, Istanbul, Turkey
| | | | - Sinem Durmus
- . Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ramila Hajiyeva
- . Assistant Doctor. Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Feyzullah Ersoz
- . Associate Professor. Department of General Surgery. Istanbul Training Research Hospital, Istanbul, Turkey
| | - Remise Gelisgen
- . Professor Doctor. Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- . Professor Doctor. Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Kundaktepe BP, Sozer V, Papila C, Durmus S, Kocael PC, Simsek G, Gelisgen R, Zengin K, Ulualp K, Uzun H. Associations Between miRNAs and Two Different Cancers: Breast and Colon. Cancer Manag Res 2020; 12:871-879. [PMID: 32104069 PMCID: PMC7012229 DOI: 10.2147/cmar.s227628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 01/22/2020] [Indexed: 12/23/2022] Open
Abstract
Objective Screening approaches using microRNAs (miRNAs) have been gaining increased attention owing to their potential applications in the diagnosis, prognosis, and monitoring of cancer, because aberrant miRNA expression plays a role in the development and advancement of malignancies. The objectives of this study were to characterize mir21, miR31, mir143, mir145, and control RNU43, which are differentially expressed in peripheral blood mononuclear cells (PBMCs) of breast and colorectal cancer patients, compared to that in controls and to establish whether this is specific to breast and colon cancer for use as tumor markers. Methods Thirty newly diagnosed patients with breast cancer and 30 patients with colorectal cancer were enrolled together with 30 healthy controls. PBMCs were isolated from venous blood samples of individuals. Next, miRNA expression analysis was performed by a two-step method of reverse transcription and qPCR. Results The expression levels of miR-143 and miR-31 were significantly decreased, whereas the expression levels of miR-145 and miR-21 were significantly increased in breast cancer patients compared to those in healthy subjects. Moreover, the expression levels of miR-143, miR-145, and miR-21 were significantly increased and, in contrast, the changes in the expression levels of miR-31 were not statistically significant in colon cancer compared to those in healthy subjects. miR-21 exhibited the highest increase in both breast and colon cancers. There was a weak positive correlation between miR-145 and CA-15.3 in patients with breast cancer (r = 0.451; p = 0.012). miR-143 was positively correlated with the TNM stage in colon cancer patients (r = 0.568; p = 0.001). Conclusion A biomarker panel composed of miR-21, miR-31, miR-143, and miR-145 in PBMC may provide a new diagnostic approach for the early detection of breast and colon cancer. As miR-21 expression was found to be the highest among all the miRNAs evaluated, it may represent a new tumor biomarker and a candidate therapeutic drug or gene target in colon and breast cancer.
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Affiliation(s)
- Berrin Papila Kundaktepe
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University, Istanbul, Turkey
| | - Cigdem Papila
- Department of Internal Medicine, Division of Oncology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sinem Durmus
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Pinar Cigdem Kocael
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gonul Simsek
- Department of Physiology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Kagan Zengin
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Kenan Ulualp
- Department of General Surgery, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- Department of Medical Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Al-Hayali MA, Sozer V, Durmus S, Erdenen F, Altunoglu E, Gelisgen R, Atukeren P, Atak PG, Uzun H. Clinical Value of Circulating Microribonucleic Acids miR-1 and miR-21 in Evaluating the Diagnosis of Acute Heart Failure in Asymptomatic Type 2 Diabetic Patients. Biomolecules 2019; 9:biom9050193. [PMID: 31109008 PMCID: PMC6571732 DOI: 10.3390/biom9050193] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/10/2019] [Accepted: 05/15/2019] [Indexed: 12/14/2022] Open
Abstract
To investigate whether the circulating miR-1 (microRNA-1) and miR-21 expression might be used in the diagnosis of heart failure (HF) and silent coronary artery disease (SCAD) in asymptomatic type 2 diabetes mellitus (T2DM) patients and to explore the relationship of these miRs with N-terminal pro-brain natriuretic peptide (NT-proBNP) and galectin-3. One hundred thirty-five consecutive patients with T2DM and 45 matched control subjects were enrolled in the study. This study consisted of the following four groups: control group (mean age: 60.23 ± 6.27 years, female/male (F/M): 23/22); diabetic group (DM) (mean age: 61.50 ± 5.08, F/M: 23/22); DM + SCAD group (mean age: 61.61 ± 6.02, F/M: 20/25); and DM + acute HF group (mean age: 62.07 ± 5.26 years, F/M: 20/25). miR-1 was downregulated in the DM, CAD + DM and HF + DM groups by 0.54, 0.54, and 0.12 fold as compared with controls, respectively. The miR-1 levels were significantly lower in HF + DM than DM with 0.22 fold changes (p < 0.001); and in patients with CAD + DM group with 0.22 fold changes (p < 0.001). Similarly, miR-21 was overexpressed in patients with DM, CAD + DM, and HF + DM with 1.30, 1.79 and 2.21 fold changes as compared with controls, respectively. An interesting finding is that the miR-21 expression was significantly higher in the HF + DM group as compared with the CAD + DM group; miR-1 was negatively correlated with NT-proBNP (r = −0.891, p < 0.001) and galectin-3 (r = −0.886, p < 0.001) in the HF + DM group; and miR-21 showed a strongly positive correlation with (r = 0.734, p < 0.001) and galectin-3 (r = 0.764. p < 0.001) in the HF + DM group. These results suggest that the circulating decreased miR-1 and increased miR-21 expression are associated with NT-proBNP and galectin-3 levels in acute HF + DM. Especially the miR-21 expression might be useful in predicting the onset of acute HF in asymptomatic T2DM patients. The miR-21 expression is more valuable than the miR-1 expression in predicting cardiovascular events of acute HF and the combined analysis of miR-21 expression, galectin-3, and NT-proBNP can increase the predictive value of miR-21 expression.
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Affiliation(s)
- Mutaa Abdalmutaleb Al-Hayali
- Department of Biochemistry, Yildiz Technical University, Istanbul 34220, Turkey.
- Department of Physiology, Biochemistry and Pharmacology College of Veterinary Medicine, Mosul University, Mosul 09334, Iraq.
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University, Istanbul 34220, Turkey.
| | - Sinem Durmus
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey.
| | - Fusun Erdenen
- Istanbul Training and research Hospital, Department of Internal Medicine, Istanbul 34098, Turkey.
| | - Esma Altunoglu
- Istanbul Training and research Hospital, Department of Internal Medicine, Istanbul 34098, Turkey.
| | - Remise Gelisgen
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey.
| | - Pınar Atukeren
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey.
| | - Palmet Gun Atak
- Department of Biochemistry, Faculty of Medicine, Istanbul Bilim University, Istanbul 34394, Turkey.
| | - Hafize Uzun
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey.
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Uysal P, Simsek G, Durmus S, Sozer V, Aksan H, Yurt S, Cuhadaroglu C, Kosar F, Gelisgen R, Uzun H. Evaluation of plasma antimicrobial peptide LL-37 and nuclear factor-kappaB levels in stable chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis 2019; 14:321-330. [PMID: 30774329 PMCID: PMC6354692 DOI: 10.2147/copd.s185602] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Antimicrobial peptides are effectors of host defence against infection and inflammation and can encourage wound repair. Objectives The objectives of this study were to investigate the plasma antimicrobial peptide LL-37 and nuclear factor-kappaB (NF-κB) levels in patients with stable COPD compared with a control group and to highlight their importance in immune inflammation. Methods One hundred and thirty-eight stable COPD patients and 33 control subjects were enrolled in the study. The COPD patients were classified into four groups based on FEV1 (groups I-IV) and also divided into "low-risk and high-risk" groups (groups A-B [low risk], C-D [high risk]). Results Plasma LL-37 levels were significantly lower while plasma NF-κB levels of the COPD patients were significantly higher than those of the control subjects (P<0.001, both). LL-37 levels were significantly lower in group IV than in groups I, II, and III (P<0.01, all). NF-κB levels were significantly higher in groups III and IV than in groups I and II (P<0.05, both). There was a positive correlation between FEV1 and FEV1/FVC in all COPD patients (r=0.742, P<0.001) and in group D (r=0.741, P<0.001). Furthermore, there was an inverse correlation between LL-37 and NF-κB in both the groups C (r=-0.566, P<0.001) and D (r=-0.694, P<0.001) and group C+D combined (r=-0.593, P<0.001). Furthermore, in group C, LL-37 and FEV1 were positively correlated (r=0.633, P<0.001). Conclusion Our study indicated that plasma LL-37 and NF-κB may play an important role in chronic immune inflammation. Decreased LL-37 levels may be particularly high risk for patients in stage IV disease. The role of LL-37 as a target for treatment of the immune system and COPD must be widely evaluated.
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Affiliation(s)
- Pelin Uysal
- Department of Chest Diseases, Faculty of Medicine, Mehmet Ali Aydınlar University, Atakent Hospital, Istanbul, Turkey
| | - Gonul Simsek
- Department of Physiology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sinem Durmus
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,
| | - Volkan Sozer
- Department of Biochemistry, Yildiz Technical University, Istanbul, Turkey
| | - Hulya Aksan
- Deparment of Biochemistry, Faculty of Medicine, Halic University, I˙stanbul, Turkey
| | - Sibel Yurt
- Clinic of Chest Diseases, Yedikule Chest Diseases and Chest Surgery Training and Research Hospital, I˙stanbul, Turkey
| | - Caglar Cuhadaroglu
- Department of Chest Diseases, Faculty of Medicine, Mehmet Ali Aydınlar University, Atakent Hospital, Istanbul, Turkey
| | - Filiz Kosar
- Clinic of Chest Diseases, Yedikule Chest Diseases and Chest Surgery Training and Research Hospital, I˙stanbul, Turkey
| | - Remise Gelisgen
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,
| | - Hafize Uzun
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey,
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Senyigit A, Durmus S, Mirzatas EB, Ozsobacı NP, Gelisgen R, Tuncdemir M, Ozcelik D, Simsek G, Uzun H. Effects of Quercetin on Lipid and Protein Damage in the Liver of Streptozotocin-Induced Experimental Diabetic Rats. J Med Food 2018; 22:52-56. [PMID: 30285538 DOI: 10.1089/jmf.2018.0030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Quercetin (QR) is part of a subclass of flavonoids called flavonols. We aimed to investigate the effect of QR on malondialdehyde (MDA), advanced oxidation protein products (AOPPs), and glutathione peroxidase (GSH-Px) activity in the liver of diabetic rats. We compared four groups of male adult Wistar albino rats: a control group, an untreated diabetic group, diabetic groups treated with QR, and QR group. Diabetes was induced by a single injection of streptozotocin (STZ) (50 mg/kg). Animals were kept in standard condition. On the 31st day of the study, the liver tissue was removed for biochemical parameters and histopathological evaluations. In an untreated diabetic group, liver MDA and AOPP levels were significantly higher than all groups. QR treatment significantly decreased the increased MDA, AOPP levels, and increased the decreased GSH-Px enzyme activity in liver tissues. The QR-treated rats in the diabetic group showed an improved histological appearance. Lesser vesicular vacuolization and fibrotic areas were observed in the QR-treated diabetic group than in the diabetic group. The STZ-induced liver injury is associated with oxidative stress, and coadministration of QR may reduce this damage effectively in a rat model. Our results are also supported by morphological improvement in liver tissue. Therefore, we think QR may be effective in treating hyperglycemia and oxidative damage in diabetes.
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Affiliation(s)
- Abdulhalim Senyigit
- 1 Department of Internal Medicine, Istanbul Medicine Hospital, Medical School, University of Biruni, Istanbul, Turkey
| | - Sinem Durmus
- 2 Department of Biochemistry, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Eda Buyukcolpan Mirzatas
- 3 Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Nural Pastacı Ozsobacı
- 4 Department of Biophysics, and Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Remise Gelisgen
- 2 Department of Biochemistry, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Matem Tuncdemir
- 3 Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Dervis Ozcelik
- 4 Department of Biophysics, and Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gonul Simsek
- 5 Department of Physiology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Uzun
- 2 Department of Biochemistry, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
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Tabak O, Simsek G, Erdenen F, Sozer V, Hasoglu T, Gelisgen R, Altunoglu E, Muderrisoglu C, Senyigit A, Uzun H. The relationship between circulating irisin, retinol binding protein-4, adiponectin and inflammatory mediators in patients with metabolic syndrome. Arch Endocrinol Metab 2017; 61:515-523. [PMID: 28977161 PMCID: PMC10522070 DOI: 10.1590/2359-3997000000289] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 05/09/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE We wanted to investigate whether there is a relationship between circulating irisin, retinol binding protein-4 (RBP-4), adiponectin and proinflammatory mediators implicated in the development of insulin resistance (IR) in metabolic syndrome (MetS). SUBJECTS AND METHODS In 180 individuals, including controls and patients with MetS, we measured fasting plasma insulin, high sensitivity C-reactive protein (hsCRP), pentraxin-3 (PTX-3), interleukin-33 (IL-33), irisin, RBP-4, and adiponectin using ELISA kits. RESULTS While fasting plasma hsCRP, PTX-3, IL-33, irisin, RBP-4 concentrations were higher, adiponectin levels were lower in patients with MetS than in controls. A correlation analysis revealed that plasma irisin levels were positively associated with MetS components such as waist circumference and waist-hip ratio, low density lipoprotein (LDL) and markers of systemic inflammation such as PTX-3, hsCRP, uric acid, and RBP-4. Adiponectin levels were negatively associated with waist circumference, waist-hip ratio, PTX-3 and LDL. CONCLUSIONS Although the precise mechanisms are still unclear, irisin, RBP-4, adiponectin and PTX-3 are hallmarks of the MetS, which is related to low-grade inflammation. It is conceivable that irisin and adiponectin might contribute to the development of MetS and may also represent novel MetS components. Future clinical studies are needed to confirm and extend these data.
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Affiliation(s)
- Omur Tabak
- Internal Medicine Cliniclstanbul Kanuni Sultan Suleyman Education and Research HospitalIstanbulTurkeyInternal Medicine Clinic, lstanbul Kanuni Sultan Suleyman Education and Research Hospital, Istanbul, Turkey
| | - Gonul Simsek
- Department of PhysiologyIstanbul UniversityCerrahpasa Medical FacultyIstanbulTurkeyDepartment of Physiology, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Fusun Erdenen
- Istanbul Education and Research HospitalInternal Medical ClinicIstanbulTurkeyIstanbul Education and Research Hospital, Internal Medical Clinic, Istanbul, Turkey
| | - Volkan Sozer
- Department of BiochemistryYildiz Technical UniversityIstanbulTurkeyDepartment of Biochemistry, Yildiz Technical University, Istanbul, Turkey
| | - Tuna Hasoglu
- Istanbul Medical FacultyIstanbul UniversityIstanbulTurkeyIstanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Remise Gelisgen
- Department of BiochemistryIstanbul UniversityCerrahpasa Medical FacultyIstanbulTurkeyDepartment of Biochemistry, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Esma Altunoglu
- Department of BiochemistryYildiz Technical UniversityIstanbulTurkeyDepartment of Biochemistry, Yildiz Technical University, Istanbul, Turkey
| | - Cuneyt Muderrisoglu
- Department of BiochemistryYildiz Technical UniversityIstanbulTurkeyDepartment of Biochemistry, Yildiz Technical University, Istanbul, Turkey
| | - Abdulhalim Senyigit
- Medicine HospitalInternal Medical ClinicIstanbulTurkeyMedicine Hospital, Internal Medical Clinic, Istanbul, Turkey
| | - Hafize Uzun
- Department of BiochemistryIstanbul UniversityCerrahpasa Medical FacultyIstanbulTurkeyDepartment of Biochemistry, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey
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Yaman OM, Erman H, Guner I, Tok OE, Pala M, Esrefoglu M, Gelisgen R, Uzun H, Aksu U, Yelmen N, Sahin G. Remote myocardial injury: the protective role of fluoxetine. Can J Physiol Pharmacol 2017; 96:319-327. [PMID: 28915358 DOI: 10.1139/cjpp-2017-0383] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aortic cross-clamping-induced ischemia-reperfusion (IR) is an important factor in the development of postoperative acute cardiac injury following abdominal aortic surgery. We investigated the possible anti-oxidant/anti-inflammatory effects of fluoxetine (FLX), which is used widely as a preoperative anxiolytic on cardiac injury induced by IR of the infrarenal abdominal aorta. FLX was administered to IR-performed (60 min of ischemia and 120 min of reperfusion) rats for 3 days, once daily at 20 mg/kg i.p. dosage. Results were compared to control and non-FLX-treated IR-performed rats. Serum creatine kinase (CK) and CK-MB levels, lipid hydroperoxide, thiobarbituric acid reactive substances, and pro-oxidant/anti-oxidant balance levels in the IR group were significantly higher whereas superoxide dismutase activity, glutathione, and ferric reducing/anti-oxidant power levels were lower than for the control. IR also increased myeloperoxidase activity, tumor necrosis factor-α, interleukin-1β, and interleukin-6 and decreased interleukin-10 levels. FLX decreased CK, CK-MB, lipid hydroperoxide, thiobarbituric acid reactive substances, and pro-oxidant/anti-oxidant balance levels while increasing superoxide dismutase activity, glutathione, and ferric reducing/anti-oxidant power levels. FLX also decreased myeloperoxidase activity, tumor necrosis factor-α, interleukin-1β, and interleukin-6 levels and increased interleukin-10 levels compared to IR. FLX attenuated the morphological changes associated with cardiac injury. Our study clearly demonstrates that FLX confers protection against aortic IR-induced cardiac injury, tissue leucocyte infiltration, and cellular integrity via its anti-oxidant/anti-inflammatory effects.
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Affiliation(s)
- Onur M Yaman
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Hayriye Erman
- b Medeniyet University, Goztepe Reseach and Educational Hospital, Istanbul, Turkey
| | - Ibrahim Guner
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Olgu Enis Tok
- c Department of Embryology and Histology, Medical Faculty, Bezmialem University, Istanbul, Turkey
| | - Mukaddes Pala
- d Medical Faculty, Biruni University, Istanbul, Turkey
| | - Mukaddes Esrefoglu
- c Department of Embryology and Histology, Medical Faculty, Bezmialem University, Istanbul, Turkey
| | - Remise Gelisgen
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Hafize Uzun
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Ugur Aksu
- e Science Faculty, Istanbul University, Istanbul, Turkey
| | - Nermin Yelmen
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Gulderen Sahin
- a Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
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Atukeren P, Cengiz M, Yavuzer H, Gelisgen R, Altunoglu E, Oner S, Erdenen F, Yuceakın D, Derici H, Cakatay U, Uzun H. The efficacy of donepezil administration on acetylcholinesterase activity and altered redox homeostasis in Alzheimer’s disease. Biomed Pharmacother 2017; 90:786-795. [DOI: 10.1016/j.biopha.2017.03.101] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/13/2017] [Indexed: 12/28/2022] Open
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Sahin S, Adrovic A, Barut K, Durmus S, Gelisgen R, Uzun H, Kasapcopur O. Pentraxin-3 levels are associated with vasculitis and disease activity in childhood-onset systemic lupus erythematosus. Lupus 2017; 26:1089-1094. [PMID: 28420068 DOI: 10.1177/0961203317699286] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives Childhood-onset systemic lupus erythematosus (cSLE) is a multisystemic autoimmune disease characterized by inflammatory organ damage by means of vasculitis. Pentraxin-3 (PTX3) is expressed locally at the sites of inflammatory processes, predominantly from endothelial cells. In adult studies, PTX3 has shown to be an indicator of active vasculitis both in large-vessel and small-vessel vasculitides, as well as in SLE. Moreover, in SLE it has found to be correlated with disease activity, and with some of the clinical manifestations and laboratory parameters. We aimed to ascertain if PTX3 might be a significant mediator in cSLE and if it might indicate active vasculitis during the course of the disease. Methods Serum PTX3 levels were measured in 76 patients with cSLE and 41 healthy subjects. We have investigated its relation with disease activity, damage, clinical features, laboratory parameters and medications. Results Serum levels of PTX3 were found to be increased in cSLE compared to healthy controls (mean ± SD; 10.6 ± 8.2 ng/mL vs 2.7 ± 1.3 ng/mL, p < 0.001). PTX3 concentrations were also in correlation with SLEDAI-2K ( r = 0.57, p < 0.001). When viewed from the clinical perspective, serum PTX3 levels were significantly higher only in patients with active vasculitis ( p < 0.001), Raynaud phenomenon ( p = 0.006) and mucocutaneous manifestations ( p < 0.001). However, an association between PTX3 and age, age at disease onset, disease duration, complement levels, PedSDI score (pediatric version of the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index), ESR, CRP, procalcitonin levels, anti-ds DNA antibody, anticardiolipin antibodies was not detected. Conclusions Patients with cSLE have increased levels of serum PTX3 compared to healthy controls. Thus, serum PTX-3 level might be a significant mediator in cSLE. Apart from these, the results support that PTX3 reflects active cutaneous vasculitis in cSLE and correlates with disease activity.
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Affiliation(s)
- S Sahin
- 1 Department of Pediatric Rheumatology, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - A Adrovic
- 1 Department of Pediatric Rheumatology, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - K Barut
- 1 Department of Pediatric Rheumatology, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - S Durmus
- 2 Department of Biochemistry, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - R Gelisgen
- 2 Department of Biochemistry, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - H Uzun
- 2 Department of Biochemistry, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
| | - O Kasapcopur
- 1 Department of Pediatric Rheumatology, Istanbul University, Cerrahpasa Medical School, Istanbul, Turkey
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Arica PC, Aydin S, Zengin U, Kocael A, Orhan A, Zengin K, Gelisgen R, Taskin M, Uzun H. The Effects on Obesity Related Peptides of Laparoscopic Gastric Band Applications in Morbidly Obese Patients. J INVEST SURG 2017. [PMID: 28635510 DOI: 10.1080/08941939.2017.1280564] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The aim of this study was to examine the relationship between weight loss and resistin, apelin, chemerin, and visfatin after laparoscopic adjustable gastric banding (LAGB). METHODS The study group consisted of 19 patients who were operated on for morbid obesity (BMI: 48.7 ± 6.6 kg/m2), and 22 healthy, normal-weight (BMI: 22.9 ± 2.5 kg/m2) subjects formed the control group. We obtained blood samples from the study subjects at three different times: before undergoing surgery and at one month and 6 months after surgery. Blood was obtained once from the control group. RESULTS Significant weight loss was achieved at one and 6 months after surgery. Plasma levels of apelin, resistin, chemerin, and visfatin were higher in morbidly obese patients compared with the control group. Obesity-related peptides decreased one month and 6 months after surgery. CONCLUSIONS Elevated plasma resistin, apelin, chemerin, and visfatin levels in morbidly obese patients are gradually reduced after weight loss. According to these findings, LAGB surgery is found to be an important and efficient means for morbidly obese patients both to lose weight and to develop a better metabolic risk profile in a short time period.
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Affiliation(s)
- Pinar Cigdem Arica
- a Department of Surgery , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Seval Aydin
- b Department of Biochemistry , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Ulgen Zengin
- c Department of Anesthesiology and Reanimation , Faculty of Medicine, BezmialemVakif University , Istanbul , Turkey
| | - Ahmet Kocael
- a Department of Surgery , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Anil Orhan
- a Department of Surgery , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Kagan Zengin
- a Department of Surgery , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Remise Gelisgen
- b Department of Biochemistry , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Mustafa Taskin
- a Department of Surgery , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
| | - Hafize Uzun
- b Department of Biochemistry , Cerrahpasa Medical Faculty, Istanbul University , Istanbul , Turkey
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Terzioglu D, Uslu L, Simsek G, Atukeren P, Erman H, Gelisgen R, Ayvaz S, Aksu B, Uzun H. The Effects of Hyperbaric Oxygen Treatment on Total Antioxidant Capacity and Prolidase Activity after Bile Duct Ligation in Rats. J INVEST SURG 2016; 30:376-382. [DOI: 10.1080/08941939.2016.1257666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Duygu Terzioglu
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Lebriz Uslu
- Department of Nuclear Medicine, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul Turkey
| | - Gonul Simsek
- Department of Physiology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Pinar Atukeren
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Hayriye Erman
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Suleyman Ayvaz
- Department of Pediatric Surgery, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Burhan Aksu
- Department of Pediatric Surgery, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Hafize Uzun
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Bavunoglu I, Genc H, Konukoglu D, Cicekci H, Sozer V, Gelisgen R, Uzun H. Oxidative stress parameters and inflammatory and immune mediators as markers of the severity of sepsis. J Infect Dev Ctries 2016; 10:1045-1052. [PMID: 27801365 DOI: 10.3855/jidc.7585] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 06/16/2016] [Accepted: 11/07/2015] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Sepsis is a complex inflammatory syndrome with diverse etiology and wide spectrum of severity. The aim of this study was to investigate whether inflammatory mediators, in comparison with oxidative parameters, are associated with severity of sepsis. METHODOLOGY Plasma neopterin, adenosine deaminase (ADA), vascular cell adhesion molecule (VCAM), intracellular adhesion molecule (ICAM), interleukin (IL)-1, IL-6, and tumor necrosis factor alpha (TNF-α), as inflammatory mediators, and serum nitric oxide (NOx), nitrotyrosine (NT), oxidized LDL (oxLDL) levels, serum paraoxonase 1 (PON1) activity, and erythrocyte glutathione (GSH) levels as oxidative stress parameters of 12 patients with mild sepsis, 25 patients with severe sepsis, and 20 healthy control subjects were evaluated. NOx, GSH levels and PON1 activity were determined by colorimetric methods, whereas neopterin, VCAM, ICAM, IL-1, IL-6, TNF-α, NT, and oxLDL levels were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS All parameters in mild and severe sepsis were significantly different from those of healthy subjects, except ADA activities. Patients with severe sepsis exhibited higher IL-6, TNF-α, NT, and oxLDL levels than patients with mild sepsis. GSH (98%, 98%), oxLDL (98%, 98%), VCAM-1 (99%, 99%), and ICAM-1 (99%, 99%) have much more sensitivitiy and specificity in sepsis. CONCLUSIONS Our results suggest that the oxidative stress and inflammatory response in patients with sepsis were increased and that serum IL-6, TNF-α, NT, and oxLDL levels were correlated with the severity of sepsis. Therefore, increases in these parameters may contribute to the dysfunction or failure of one or more organs, or even death, in sepsis.
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Affiliation(s)
- Isil Bavunoglu
- Medical Faculty of Cerrahpasa, Istanbul University, Istanbul, Turkey.
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Tabak O, Sozer V, Erdenen F, Hasoglu T, Gelisgen R, Altunoglu E, Muderrisoglu C, Senyigit A, Simsek G, Uzun H. WITHDRAWN: Relationship between circulating irisin, retinol binding protein-4, adiponectin and inflammatory mediators in patients with metabolic syndrome. Diabetes Metab Syndr 2016. [DOI: 10.1016/j.dsx.2016.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Erman H, Gelisgen R, Cengiz M, Tabak O, Erdenen F, Uzun H. The association of vascular endothelial growth factor, metalloproteinases and their tissue inhibitors with cardiovascular risk factors in the metabolic syndrome. Eur Rev Med Pharmacol Sci 2016; 20:1015-1022. [PMID: 27049251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The present study was proposed to examine the matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs) and vascular endothelial growth factor (VEGF) in patients with metabolic syndrome (MetS), and to compare these parameters with healthy controls. We also compared the possible association of the circulating levels of MMP-2, MMP-9, TIMP-1, TIMP-2, and VEGF with cardiovascular risk factors in patients with MetS. We also compared the possible association of the circulating levels of MMP-2, MMP-9, TIMP-1, TIMP-2, and VEGF with cardiovascular risk factors in patients with MetS. PATIENTS AND METHODS A total of 45 patients with MetS and 17 healthy controls with a body mass index (BMI) less than 25 kg/m2 were enrolled in the study. Plasma MMP-2, MMP-9, TIMP-1, TIMP-2, and VEGF levels were determined using ELISA. RESULTS TIMP-1,-2, MMP-2,-9 levels were significantly higher in patients with MetS compared with healthy controls (p < 0.001). Carotid intima-media thickness and serum VEGF levels were found to be significantly increased (p < 0.01, p < 0.05 respectively) in MetS compared with healthy controls. According to the ROC curves, TIMP-1 levels were both sensitive (93.3%) and specific (81.2%). CONCLUSIONS We observed that the patients with MetS have increased circulating concentrations of MMP-9, MMP-2, and TIMP-1, TIMP-2 that are associated with increased concentrations of VEGF. These findings suggest that MMP-2 may have a role in the increased cardiovascular risk of MetS patients.
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Affiliation(s)
- H Erman
- Department of Medical Biochemistry, Goztepe Training and Research Hospital, Istanbul Medeniyet University, Istanbul, Turkey.
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Dereli M, Krazinski BE, Ayvaz S, Aksu B, Kanter M, Uzun H, Gelisgen R, Umit CH, İnan M, Basaran UN, Pul M. A novel approach for preventing esophageal stricture formation: olmesartan prevented apoptosis. Folia Histochem Cytobiol 2015; 52:29-35. [PMID: 24802958 DOI: 10.5603/fhc.2014.0003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 11/28/2013] [Accepted: 04/09/2014] [Indexed: 11/25/2022] Open
Abstract
Accidentally ingested corrosive substances can cause functional and structural damage to the esophageal tissue resulting in stricture formation. It has been reported that the administration of olmesartan (OLM) can have anti-inflammatory, antifibrotic and antiapoptotic effects on injured tissue. The aim of our study was to check if OLM could prevent formation of scars in the corrosive esophageal burn model. Fifty-one Wistar Albino rats were divided into six groups: Control, Sham, OLM, Sham + OLM, Burn, and Burn + OLM. Olmesartan (5 mg/kg) was given by gavage once per day for 21 consecutive days after injury. The morphology of the esophagus was assessed after Masson trichrome staining, and apoptosis was evaluated using the terminal deoxynucleotidyl transferased UTP nick end labeling (TUNEL) method. The serum nucleosomes (as an indicator of apoptosis), serum p53 protein, and esophageal tissue p53 protein levels of each group were measured by immunoassays. Muscularis mucosa damage, submucosal collagen deposition, and tunica muscularis injury in the Burn + OLM group decreased significantly compared with the Burn group (p < 0.05). Similarly, the number of apoptotic cells in the Burn + OLM group decreased compared with the Burn group (p < 0.05). Serum levels of nucleosomes and p53 and tissue of p53 protein did not differ between the groups. Exogenously administered OLM can effectively prevent the occurrence of esophageal strictures caused by corrosive esophageal burns.
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Affiliation(s)
| | | | - Suleyman Ayvaz
- Department of Pediatric Surgery, Trakya University Faculty of Medicine, Edirne, Turkey.
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Altunoglu E, Guntas G, Erdenen F, Akkaya E, Topac I, Irmak H, Derici H, Yavuzer H, Gelisgen R, Uzun H. Ischemia-modified albumin and advanced oxidation protein products as potential biomarkers of protein oxidation in Alzheimer's disease. Geriatr Gerontol Int 2014; 15:872-80. [PMID: 25345484 DOI: 10.1111/ggi.12361] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND The aim of the present study was to determine the systemic levels of oxidative stress markers, such as ischemia-modified albumin (IMA), advanced oxidation protein products (AOPP), ferric reducing antioxidant power (FRAP) and the prooxidant-antioxidant balance (PAB), to clarify protein redox homeostasis in patients with Alzheimer's disease, and to compare them with mentally healthy persons of the same age. METHODS A total of 38 patients with Alzheimer's disease (AD) and 34 sex- and age-matched mentally healthy control subjects were included in this study. RESULTS The patients had significantly higher AOPP, IMA and PAB in the patient group than in the control group (P = 0.004, P = 0.001, P = 0.007, respectively). The FRAP was significantly lower in the patients with AD than in the control subjects (P = 0.002), and according to the receiver operating characteristic curves, the IMA and AOPP areas are below the 0.700 receiver operating characteristic curve line (area under the curve 0.817 and 0.730, respectively; 95% CI 0.709-0.898 and 0.612-0.828, respectively). CONCLUSIONS Increased IMA, AOPP and PAB, and decreased FRAP are likely to be results of oxidative stress, a condition in which an imbalance occurs between the production and inactivation of reactive oxygen species in AD. The IMA could be used for the better evaluation of clinical status, as well as the independent characteristic symptoms of AD, for the purposes of routine clinical laboratory analysis.
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Affiliation(s)
- Esma Altunoglu
- Internal Medical Clinic, Istanbul Education and Research Hospital, Istanbul, Turkey
| | - Gulcan Guntas
- Kırklareli University School of Health, Kırklareli, Turkey
| | - Fusun Erdenen
- Internal Medical Clinic, Istanbul Education and Research Hospital, Istanbul, Turkey
| | - Esen Akkaya
- Internal Medical Clinic, Istanbul Education and Research Hospital, Istanbul, Turkey
| | - Ibrahim Topac
- Department of Biochemistry, Istanbul Education and Research Hospital, Istanbul, Turkey
| | - Hulya Irmak
- Department of Biochemistry, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Himmet Derici
- Department of Neurology, Istanbul Education and Research Hospital, Istanbul, Turkey
| | - Hakan Yavuzer
- Department of Internal Medicine, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Remise Gelisgen
- Department of Biochemistry, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Hafize Uzun
- Department of Biochemistry, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
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Altunoglu E, Erdenen F, Gelisgen R, Kar O, Korkmaz G, Muderrisoglu C, Tabak O, Uzun H. Serum Adenosine Deaminase Activity and Neopterin Levels during Therapy in Patients with Pulmonary Tuberculosis and Community-Acquired Pneumonia. Istanbul Med J 2014. [DOI: 10.5152/imj.2014.24855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Kocael A, Erman H, Zengin K, Kocael PCA, Korkmaz GG, Gelisgen R, Taskin M, Ersan Y, Uzun H. The effects on oxidative DNA damage of laparoscopic gastric band applications in morbidly obese patients. Can J Surg 2014; 57:183-7. [PMID: 24869610 PMCID: PMC4035400 DOI: 10.1503/cjs.008113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2013] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Obesity may induce oxidative stress, causing oxidative damage of DNA. We examined associations between decreasing serum and urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels and weight loss in morbidly obese patients before and 6 months after laparoscopic adjustable gastric banding (LAGB). METHODS We compared patients who had surgery for morbid obesity with healthy, nonobese controls. Urine and fasting blood samples were collected once from the controls and from the morbidly obese patients before and 6 months after the LAGB. The serum and urinary 8-OHdG levels were evaluated in these groups using an enzyme-linked immunosorbent assay kit. RESULTS We included 20 patients who had surgery for morbid obesity (8 men, 12 women, mean body mass index [BMI] 46.82 ± 4.47) and 20 healthy, nonobese people (10 men, 10 women, mean BMI 22.52 ± 2.08) in our study. There was no significant difference in serum 8-OHdG levels between the groups, whereas urinary 8- OHdG levels were significantly higher in morbidly obese patients than in controls. Weight, BMI and serum and urinary 8-OHdG levels were significantly decreased in morbidly obese patients 6 months after LAGB. CONCLUSION The LAGB provides efficient weight loss in patients with morbid obesity. The systemic oxidative DNA damage was increased by the morbid obesity, but this increase was not related to weight gain, and it was more evident in serum than urine samples. After LAGB for morbid obesity, the oxidative DNA damage declined both in serum and urine.
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Affiliation(s)
- Ahmet Kocael
- Department of General Surgery, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Hayriye Erman
- Department of Biochemistry, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Kagan Zengin
- Department of General Surgery, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | | | | | - Remise Gelisgen
- Department of Biochemistry, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Mustafa Taskin
- Department of General Surgery, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Yilmaz Ersan
- Department of General Surgery, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
| | - Hafize Uzun
- Department of Biochemistry, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey
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Erman H, Cakmak H, Ikitimur B, Sozer V, Ongen Z, Karadag B, Gelisgen R, Simsek G, Uzun H. OP-343 Peri-procedural Changes in Serum Arylesterase Acvitivity in Patients Undergoing Elective PCI for Stable CAD. Am J Cardiol 2014. [DOI: 10.1016/j.amjcard.2014.01.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ikitimur B, Cakmak H, Erman H, Sozer V, Ongen Z, Karadag B, Gelisgen R, Simsek G, Uzun H. OP-332 The Assessment of Oxidative Stress in Patient with Stable Coronary Artery Disease Undergoing Percutaneous Coronary Intervention (PCI): Paraoxonase-1 as Novel Markers of PCI Related Oxidative Stress. Am J Cardiol 2014. [DOI: 10.1016/j.amjcard.2014.01.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Acay A, Erdenen F, Altunoglu E, Erman H, Muderrisoglu C, Korkmaz GG, Gelisgen R, Tabak O, Uzun H. Evaluation of serum paraoxonase and arylesterase activities in subjects with asthma and chronic obstructive lung disease. Clin Lab 2014; 59:1331-7. [PMID: 24409668 DOI: 10.7754/clin.lab.2013.121144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Asthma and chronic obstructive lung disease (COPD) are characterised by airway inflammation. Paraoxonasel (PON1) and arylesterase (AE) enzymes have the ability to protect HDL from oxidation and may have antiatherogenic, antioxidant, and antiinflammatory features. We carried out a study to assess if there is a difference between PON1 and AE activities and biochemical values between asthmatics and COPD patients and if there is a difference between comorbid or pure COPD patients. METHODS 40 asthmatics, 20 pure COPD, 20 comorbid COPD patients, and 20 healthy controls were included. We excluded patients with hypertension, metabolic syndrome, diabetes mellitus, thyroid, renal, hepatic, rheumatic, cardiac, cerebrovascular, malignant, and infectious diseases to establish the asthma and pure COPD groups. Patients using drugs which could affect PON1 and AE were excluded in these groups. There were 11 hypertensive, 5 diabetic, and 4 cardiac patients in the comorbid COPD group. PON1 and AE activities were measured spectrophotometrically. RESULTS Mean age was higher and male gender was more prevalant in COPD than other groups. Fasting blood glucose, LDL-cholesterol, triglyceride, leucocyte counts, erythrocyte sedimentation rate, and hs-CRP levels were higher in COPD patients. Although PON1 and AE were lower in patients than controls, no difference was found between the asthma and COPD groups, nor between pure and comorbid COPD patients. CONCLUSIONS Although asthma and COPD are two different conditions PON1 and AE activities cannot be markers of differantial diagnosis as they overlap. Comorbid COPD patients may have similar enzyme levels because of the drugs such as statins and aspirin.
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Affiliation(s)
- A Acay
- Istanbul Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
| | - F Erdenen
- Istanbul Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
| | - E Altunoglu
- Istanbul Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
| | - H Erman
- Istanbul University Cerrahpasa Medical Faculty, Department of Biochemistry, Istanbul, Turkey
| | - C Muderrisoglu
- Istanbul Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
| | - G G Korkmaz
- Kirklareli University, School of Health, Kirklareli, Turkey
| | - R Gelisgen
- Istanbul University Cerrahpasa Medical Faculty, Department of Biochemistry, Istanbul, Turkey
| | - O Tabak
- lstanbul Kanuni Sultan Suleyman Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
| | - H Uzun
- Istanbul University Cerrahpasa Medical Faculty, Department of Biochemistry, Istanbul, Turkey
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Korkmaz G, Inal B, Ortakoylu G, Irmak H, Kara A, Gelisgen R, Ogurlu O, Uzun H. Changes in Oxidative Stress Parameters and Antioxidant Status in Lung Cancer: Western Blot Analysis of Nitrotyrosine and Protein Carbonyls Content. Clin Lab 2014; 60:599-607. [DOI: 10.7754/clin.lab.2013.130407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Oncul M, Tuten A, Erman H, Gelisgen R, Benian A, Uzun H. Maternal and cord blood apelin, resistin and visfatin levels in gestational diabetes mellitus. Minerva Med 2013; 104:527-535. [PMID: 24101110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM The aim of this paper was to investigate maternal and cord blood apelin, resistin and visfatin concentrations in pregnant women with and without gestational diabetes mellitus (GDM). METHODS This case-control study was conducted on 24 women with GDM and 21 women without GDM. Maternal plasma and cord blood apelin, resistin and visfatin levels were measured with ELISA. RESULTS The cord blood apelin levels were significantly lower in women with GDM than control subjects (111.23±31.53 vs.. 257.48±133.97 pg/mL, P=0.002). However, the decrease of maternal apelin levels in GDM group was not statistically significant (140.76±48.38 vs. 163.53±91.12 pg/mL, P=0.602). Women with GDM had lower maternal and cord blood visfatin concentrations and higher resistin concentrations than control group. Maternal resistin concentrations were significantly correlated with HOMA-IR (r=0.745, P=0.005). The apelin and visfatin levels did not correlate with HbA1c, BMI, HOMA-IR, glucose and birth weight. CONCLUSION GDM is associated with lower cord blood apelin levels than control subjects. GDM appears to influence fetoplacental apelin metabolism. Apelin may not be directly involved in the regulation of maternal insulin sensitivity. Our results indicate that there is an increase in resistin concentrations and a decrease in visfatin concentrations in maternal serum and cord blood serum with GDM.
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Affiliation(s)
- M Oncul
- Department of Obstetrics and Gynecology, Cerrahpasa Medical FacultyIstanbul University, Istanbul, Turkey -
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Sozer V, Uzun H, Gelisgen R, Kaya M, Kalayci R, Tabak O, Arican N, Konukoglu D. The effects of atorvastatin on oxidative stress in L-NAME-treated rats. Scand J Clin Lab Invest 2013; 73:591-7. [PMID: 24024670 DOI: 10.3109/00365513.2013.828241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Current evidence suggests that the beneficial vascular effects of statins are not limited to the statins' lipid-lowering properties; these drugs can also improve vascular endothelial cell function. Nω-nitro-l-arginine methyl ester (L-NAME) is a potent synthetic nitric oxide inhibitor, and long-term oral L-NAME treatment is used to induce vascular lesions in experimental animal models. METHODS We determined the effects of statins on protein carbonyl (PCO), lipid hydroperoxides (LHP), oxidized low-density lipoproteins (ox-LDL) and antioxidants such as paraoxonase 1 (PON1) and total thiols (T-SH) in long-term L-NAME-treated rats. Adult male Wistar rats were divided into three groups, namely, control, L-NAME-treated (1 mg/mL in drinking water for three weeks), and atorvastatin plus L-NAME-treated (4 mg/kg/day atorvastatin for 1 week during the third week of L-NAME treatment) groups. RESULTS In the L-NAME group, the ox-LDL, LHP and PCO were higher and the PON1 and T-SH were lower than the concentrations observed for the controls. When compared with the L-NAME group, the L-NAME plus atorvastatin group had significantly lower ox-LDL and LHP and higher PON1 activities. Additionally, the elevated total cholesterol (TC) and low-density lipoprotein-C (LDL-C) in the L-NAME group were decreased by atorvastatin administration. TC and LDL-C were positively correlated with ox-LDL and LHP and negatively correlated with PON1 in all groups. High-density lipoprotein-C (HDL-C) was negatively correlated with ox-LDL. CONCLUSION PON1 prevents LDL oxidation and inactivates LDL-derived oxidized phospholipids; its activity showed a pronounced decrease in the L-NAME treatment group and was increased in the atorvastatin group. Based on our findings, we concluded that the atorvastatin had HDL-related antioxidant activity as well as lipid-lowering properties.
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Affiliation(s)
- Volkan Sozer
- Department of Biochemistry, Yildiz Technical University , Istanbul
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Sozer V, Korkmaz Guntas G, Konukoglu D, Dervisoglu E, Gelisgen R, Tabak O, Kalender B, Uzun H. Effects of peritoneal-and hemodialysis on levels of plasma protein and lipid oxidation markers in diabetic patients. Minerva Med 2013; 104:75-84. [PMID: 23392540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM The aim of this paper was to evaluate the effects of dialysis procedures on oxidative stress in diabetic patients. METHODS The study was performed on 15 non-diabetic hemodialysis (HD) patients, 30 non-diabetic perinoteal dialysis (PD) patients, 18 diabetic HD patients (DHD), 15 diabetic PD patients (DPD), and 20 healthy controls. Plasma thiobarbituric acid reactive substances (TBARS), protein carbonyl (PCO), and oxidized LDL (oxLDL) were determined as oxidative stress markers. Plasma thiol (P-SH), erythrocyte glutathione (GSH) levels, and serum paraoxonase (PON1) activities were measured as antioxidants. RESULTS HD patients have significantly higher oxLDL, TBARS and PCO levels and significantly lower P-SH levels than PD patients. DHD patients have significantly higher PCO levels and PON1 activities and significantly lower GSH levels than non-diabetic HD patients. There was no any difference in oxidative stress parameters between DPD and non-diabetic PD patients. CONCLUSION Oxidative stress is exacerbated by HD in diabetic patients. Treatment strategy with antioxidants in dialysis patients may be associated with a worsened survival.
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Affiliation(s)
- V Sozer
- Department of Biochemistry, Yildiz Technical University, Istanbul, Turkey
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Yurt S, Erman H, Korkmaz GG, Kosar AF, Uysal P, Gelisgen R, Simsek G, Uzun H. The role of feed regulating peptides on weight loss in patients with pulmonary tuberculosis. Clin Biochem 2012; 46:40-4. [PMID: 23000316 DOI: 10.1016/j.clinbiochem.2012.09.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Revised: 09/10/2012] [Accepted: 09/11/2012] [Indexed: 12/19/2022]
Abstract
PURPOSE Malnutrition is a prominent feature of tuberculosis (TB). The aim of our study was to explore the function of plasma regulatory proteins in pulmonary TB and to investigate the relationship between these parameters and loss of body weight. METHODS Plasma levels of fasting insulin, leptin, ghrelin, adiponectin and orexin-A were measured in 23 pulmonary TB patients, 39 patients with pulmonary sarcoidosis, 22 patients with different diffuse interstitial lung diseases and 21 healthy patients serving as controls. RESULT Plasma leptin (p<0.001) and orexin-A (p<0.01) levels were significantly decreased in TB patients compared with those of the other study subjects. TB patients also had higher levels of plasma ghrelin compared with those of the other study subjects, while sarcoidosis patients had higher plasma adiponectin levels than the other study subjects. Glucose levels were similar in all groups, yet, insulin and Homeostasis Model of Assessment-Insulin Resistance (HOMA-IR) levels were significantly higher in the TB group compared to the other study groups. There was no correlation between leptin, ghrelin, adiponectin and orexin-A and other parameters. CONCLUSIONS These data suggest that leptin and orexin-A levels have effects on weight loss in patients with pulmonary tuberculosis. Particularly, leptin may play a role in the early immune response to pulmonary TB and prolonged inflammation may further suppress leptin production. Measurement of HOMA-IR can indeed be used as a marker for the risk of activated TB. Further clinical studies are needed to better understand the role of feed regulating proteins in pulmonary tuberculosis.
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Affiliation(s)
- S Yurt
- Yedikule Chest Disease and Chest Surgery Education and Research Hospital, Istanbul, Turkey.
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Karakus M, Gelisgen R, Topcuoglu A, Guralp O, Topcuoglu D, Simsek G, Uludag S, Uzun H. The effects of 17β-estradiol plus drospirenone on anthropometric and biochemical measures of adiposity in menopausal women. Arch Gynecol Obstet 2012; 286:1233-9. [DOI: 10.1007/s00404-012-2437-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 06/14/2012] [Indexed: 11/27/2022]
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Gelisgen R, Zengin K, Kocael A, Baysal B, Kocael P, Erman H, Taskın M, Uzun H. Effects of laparoscopic gastric band applications on plasma and fundic acylated ghrelin levels in morbidly obese patients. Obes Surg 2012; 22:299-305. [PMID: 21870052 DOI: 10.1007/s11695-011-0498-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND It has been proposed that laparoscopic adjustable gastric banding (LAGB) procedure might play a role in modulation of fundic ghrelin production. To test this hypothesis, we examined plasma and tissue concentrations of acylated ghrelin in morbidly obese patients before and 6 months after LAGB. Baseline levels of acylated ghrelin in morbidly obese patients were also compared with those in age-matched, healthy, non-obese controls. METHODS We studied 21 patients who had been operated on for morbid obesity (M/F = 9/12, BMI = 49.3 ± 5.3 kg/m(2)) and 16 healthy, non-obese persons (M/F = 7/9, BMI = 23.0 ± 1.7 kg/m(2)). Fasting blood samples were collected once from the non-obese controls as well as the morbidly obese patients before and 6 months after the LAGB. The morbidly obese patients and their respective controls underwent gastroscopy for fundic biopsy. The plasma and fundic acylated ghrelin levels were evaluated in these groups by enzyme-linked immunosorbent assay. RESULTS The plasma and fundic acylated ghrelin concentrations were significantly lower in obese patients than in non-obese controls (2.8 ± 1.0 ng/ml, 727 ± 171.7 ng/g tissue, respectively; p = 0.000). These parameters were significantly increased in morbidly obese patients 6 months after LAGB (4.1 ± 1.2 ng/ml and p = 0.001; 999 ± 292.1 ng/g tissue and p = 0.003, respectively). CONCLUSIONS We showed that fundic production of acylated ghrelin was significantly increased in morbidly obese patients 6 months after LAGB. Moreover, the weight loss after LAGB occurred in spite of the significant increase in the plasma and fundic acylated ghrelin levels. The potential role of ghrelin as being responsible for the weight loss after bariatric surgery needs to be elucidated in further studies.
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Affiliation(s)
- Remise Gelisgen
- Department of Biochemistry, Cerrahpasa Medical Faculty, Istanbul University, 34303 Cerrahpasa, Istanbul, Turkey.
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Gelisgen R, Genc H, Kayali R, Oncul M, Benian A, Guralp O, Uludag S, Cakatay U, Albayrak M, Uzun H. Protein oxidation markers in women with and without gestational diabetes mellitus: a possible relation with paraoxonase activity. Diabetes Res Clin Pract 2011; 94:404-9. [PMID: 21885148 DOI: 10.1016/j.diabres.2011.08.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 07/28/2011] [Accepted: 08/02/2011] [Indexed: 11/24/2022]
Abstract
AIMS To clarify the levels of protein oxidation markers such as protein carbonyl (PCO), protein hydroperoxides (P-OOH), advanced oxidation protein products (AOPP) and nitrotyrosine (NT), as well as antioxidative enzymes such as paraoxonase (PON-1) in women with and without gestational diabetes mellitus (GDM). METHODS The study was conducted on 23 women with GDM and 22 women without GDM. The levels of the P-OOH, AOPP, and PON-1 were determined by colorimetric methods; whereas NT and PCO levels were measured by ELISA. RESULTS The concentrations of protein oxidation markers were significantly increased and PON1 activity was significantly decreased in GDM group compared to those of normal pregnant women. The control group showed a significant negative correlation between PON-1 and PCO (r=-0.451, p=0.027); whereas in GDM group, there was a significant positive correlation between P-OOH and HbA1c (r=0.89, p=0.001). There was no significant correlation between AOPP, PON-1, P-OOH, PCO, and HbA1c in either group. CONCLUSIONS There is evidence of a possible association between protein oxidation and decreased PON1 activity in GDM. The increase in protein oxidation parameters in the GDM group leading to decreased PON1 activity might, we think, create a predisposition for clinical complications in GDM group.
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Affiliation(s)
- Remise Gelisgen
- Istanbul University, Cerrahpasa Medical Faculty, Department of Biochemistry, Istanbul, Turkey
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Tabak O, Gelisgen R, Erman H, Erdenen F, Muderrisoglu C, Aral H, Uzun H. Oxidative lipid, protein, and DNA damage as oxidative stress markers in vascular complications of diabetes mellitus. ACTA ACUST UNITED AC 2011; 34:E163-71. [PMID: 21631993 DOI: 10.25011/cim.v34i3.15189] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Indexed: 11/03/2022]
Abstract
PURPOSE The purpose of this study was to determine the effects of diabetic complications on oxidation of proteins, lipids, and DNA and to investigate the relationship between oxidative damage markers and clinical parameters. METHODS The study group consisted of 69 type 2 diabetic patients (20 patients without complication, 49 patients with complication) who attended internal medicine outpatient clinics of Istanbul Education and Research Hospital and 19 healthy control subjects. In serum samples of both diabetic patients and healthy subjects, 8-hydroxy-2'deoxyguanosine (8-OHdG), as a marker of oxidative DNA damage, N(ε)-(hexanoyl)lysine (HEL) and 15-F2t-iso-prostaglandin (15-F2t-IsoP). as products of lipooxidative damage, advanced oxidation protein products (AOPP), as markers of protein damage, and paraoxonase1 (PON1) as antioxidant were studied. RESULTS 15-F2t-IsoP (p < 0.005) and AOPP (p < 0.001) levels were significantly higher in diabetic group than control group while there were no significant differences in levels of 8-OHdG and HEL between the two groups. AOPP (p < 0.001) and 8-OHdG (p < 0.001) were significantly higher in diabetic group with complications compared to diabetic group without complications. CONCLUSIONS Increased formation of free radicals and oxidative stress, under conditions of hyperglycaemia, is one of the probable causes for evolution of complications in diabetes mellitus. Our study supports the hypothesis that oxidant/antioxidant balance is disturbed in diabetic patients.
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Affiliation(s)
- Omur Tabak
- Istanbul Education and Research Hospital, Internal Medicine Clinic, Istanbul, Turkey
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Genc H, Uzun H, Benian A, Simsek G, Gelisgen R, Madazli R, Güralp O. Evaluation of oxidative stress markers in first trimester for assessment of preeclampsia risk. Arch Gynecol Obstet 2011; 284:1367-73. [PMID: 21344259 DOI: 10.1007/s00404-011-1865-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Accepted: 02/09/2011] [Indexed: 10/18/2022]
Abstract
AIM The aim of this study is to determine the predictive values of oxidative stress markers and antioxidants in the development of preeclampsia between 10-14 and also at 20-24 weeks of gestation, after the completion of vascular transformation. MATERIALS AND METHODS Levels of oxidative stress parameters such as malondialdehyde (MDA), lipidhydroperoxide (LHP) and prostaglandin F(2α) (PGF(2α)), oxidized LDL (oxLDL), and antioxidant status parameters such as paraoxonase 1 (PON1), superoxide dismutase (SOD) and total antioxidant capacity (TAC) levels were measured and compared in 21 preeclamptic and 24 healthy pregnant women. RESULTS In preeclamptic women, both between 10-14 and also at 20-24 weeks of gestation the levels of oxLDL, MDA and PGF(2α) were significantly higher (P < 0.001, P < 0.001, respectively), PON1, SOD and TAC were significantly lower (P < 0.01, P < 0.001, P < 0.05, respectively) compared to healthy pregnant women; yet there was no significant difference in LHP levels. CONCLUSION Increased levels of serum MDA and PGF(2α), low levels of SOD and PON1 activity, in 10-14 GW may have been associated with preeclampsia etiology. High levels of MDA and PGF(2α) indicate that the oxidative damage is present well before the clinical symptoms occur. A panel of oxidative stress markers such as MDA and PGF(2α) in maternal blood can predict the development of preeclampsia long before clinical onset.
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Affiliation(s)
- Habibe Genc
- Department of Biochemistry, Istanbul University, Cerrahpasa Medical Faculty, Cerrahpasa, 34303 Istanbul, Turkey
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Tabak O, Gelisgen R, Uzun H, Kalender B, Balci H, Curgunlu A, Simsek G, Karter Y. Hypertension and hemostatic/fibrinolytic balance disorders. ACTA ACUST UNITED AC 2009; 32:E285. [DOI: 10.25011/cim.v32i6.10664] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Indexed: 11/03/2022]
Abstract
Background: Hypertension is one of the principal risk factors for cardiovascular disease. We aimed to evaluate the impact of hypertension on fibrinolytic balance and endothelial function by measuring plasma levels of plasminogen activator inhibitor-1 (PAI-1), tissue plasminogen activator antigen (tPA), tPA/PAI-1 complex and fibrinogen.
Methods: Patients enrolled into the study were divided into four groups: 22 essential hypertensive (EH), 22 white coat hypertensive (WCH), 22 renovascular hypertensive (RH) and 22 normotensive control subjects. Plasma PAI-1, tPA, tPA/PAI-1 complex levels were measured by enzyme linked immunosorbent assays.
Results: There was no difference in the systolic and diastolic blood pressure measurements of the EH and RH groups. The four groups were comparable for age, gender, smoking habits and BMI. Patients with EH, RH and WCH had increased plasma levels of PAI-1, tPA, tPA/PAI-1 complex and fibrinogen compared with controls. No fibrinolytic parameter was associated with blood pressure in hypretensive subjects.
Conclusion: This prospective study showed that fibrinolytic markers such as PAI-1, tPA, tPA/PAI-1 complex are independently associated with the development of hypertension. This supports the hypothesis that disturbances in fibrinolysis precede a cardiovascular event. Therefore, hypertension may be associated with impaired fibrinolysis.
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Vatansever S, Gelisgen R, Uzun H, Yurt S, Kosar F. Potential role of matrix metalloproteinase-2,-9 and tissue inhibitors of metalloproteinase-1,-2 in exudative pleural effusions. ACTA ACUST UNITED AC 2009; 32:E293-300. [PMID: 19640333 DOI: 10.25011/cim.v32i4.6621] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Indexed: 11/03/2022]
Abstract
PURPOSE To investigate diagnostic values of pleural fluid matrix metalloproteinase-2 (MMP-2), MMP-9, tissue inhibitors of metalloproteinase-1 (TIMP-1) and TIMP-2 measurements in tuberculous pleurisy(TP) and malignat pleurisy (MP). METHODS The study included 24 patients with TP, 22 patients with MP and 15 patients with pleural effusion of non-tuberculous and non-malignant origin as controls. MMP-2,-9 and TIMP-1,-2 levels in pleural fluid were measured by ELISA method. RESULTS Pleural fluid MMP-2 and MMP-9 levels were higher (P < 0.001, P < 0.001, respectively) in TP than in MP and controls. MP patients have higher pleural fluid MMP-2 and MMP-9 levels (P < 0.01, P < 0.05, respectively) than controls. Pleural fluid TIMP-2 levels were higher (P < 0.01 and P < 0.001, respectively) in MP than in TP and controls. Pleural fluid MMP-9 levels were negatively correlated with pleural fluid TIMP-2 levels (r: 0.464, P=0.029) in patients with MP. CONCLUSIONS Determination of TIMP-2 in pleural fluid may contribute to differentiate TP from MP. These results suggest that overproduction of MMP-9 and TIMP-2 is associated with accumulation of the pleural effusion in malignancy. Further studies with a greater number of patients are needed to confirm this hypothesis.
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Affiliation(s)
- S Vatansever
- Istanbul University, Istanbul Medical Faculty, Department of Internal Medicine, Istanbul, Turkey
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