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Kocyigit I, Unal A, Sipahioglu M, Tokgoz B, Oymak O, Utas C. Peritonitis Due to Candida rugosa: The First Case Report. Perit Dial Int 2020; 30:576-7. [DOI: 10.3747/pdi.2010.00045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Eroglu E, Cetin M, Kocyigit I, Akgun H, Sipahioglu MH, Tokgoz B, Oymak O. Lupus Nephritis Presenting with Preeclampsia. TURKISH JOURNAL OF NEPHROLOGY 2020. [DOI: 10.5152/turkjnephrol.2020.3579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kocyigit I, Eroglu E, Ecder T. Urinary Findings and Biomarkers in Autosomal Dominant Polycystic Kidney Disease. TURKISH JOURNAL OF NEPHROLOGY 2020. [DOI: 10.5152/turkjnephrol.2020.3554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Eroglu E, Kocyigit I, Cetin M, Zararsiz G, Imamoglu H, Bayramov R, Tastan S, Sipahioglu MH, Tokgoz B, Oymak O. Multiple urinary tract infections are associated with genotype and phenotype in adult polycystic kidney disease. Clin Exp Nephrol 2019; 23:1188-1195. [PMID: 31165946 DOI: 10.1007/s10157-019-01752-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/24/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Urinary tract infections (UTI) are one of the important clinical presentations in patients with autosomal dominant polycystic kidney disease (ADPKD). The association between UTI among genotypic and phonotypic properties of ADPKD patients is still obscure. Thus, we investigated the relationship between UTI and polycystin gene mutation with total kidney volume. METHODS Forty patients with ADPKD patients with a history of more than two UTI and age-gender-matched 40 ADPKD patients without UTI history enrolled in the study. Ambulatory blood pressure monitoring was performed in all participants. Magnetic resonance imaging (MRI) was performed with a 1.5-T system, and total kidney volumes were calculated using mid-slice technique. To determine PKD1 and PKD2 genotype, we performed molecular and genetic tests involving the following steps: DNA isolation, next-generation sequencing (NGS) and data analysis. RESULTS ADPKD patients with UTI had lower eGFR values than those without UTI [64.9 (32.2-100.8) vs 89.5 (59.0-110.0) (p = 0.041)]. In addition, patients with UTI had significantly increased height-adjusted total kidney volume than patients without UTI [950 (290-1350) vs 345 (243-780.0) (p = 0.005)]. Multiple logistic regression analysis showed that the PKD1-truncating mutation and hTKV independently predicted UTI. The sensitivity and specificity of hTKV were 65% and 77% (cutoff > 727 cm3) with an area of under the ROC curve of 0.70 (95% CI 0.56-0.85, p = 005). CONCLUSIONS ADPKD patients with larger kidneys and PKD1 mutation are susceptible to increased risk of multiple UTI. Additionally, renal function decreased in ADPKD patients with multiple UTI history.
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Kocyigit I, Ozturk F, Eroglu E, Karaca Z, Kaynar AS, Cetin M, Tokgoz B, Sipahioglu MH, Bayramov R, Sen A, Oymak O, Ecder T, Axelsson J. Dysmetabolic markers predict outcomes in autosomal dominant polycystic kidney disease. Clin Exp Nephrol 2019; 23:1130-1140. [PMID: 31134465 DOI: 10.1007/s10157-019-01748-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 05/10/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Overweight and obesity were recently associated with a poor prognosis in patients with autosomal dominant polycystic kidney disease (ADPKD). Whether the metabolic consequences of obesity as defined by the metabolic syndrome (MS) are also linked with disease progression remains untested. METHODS Eligible ADPKD patients with different stages of CKD (n = 105) and 105 non-diabetic controls matched for CKD stage were enrolled in the study. Groups were evaluated at baseline for presence of MS, blood markers of metabolism, homeostasis model assessment of insulin resistance (HOMA-IR) score, and biochemical markers of inflammation (hs-CRP, IL-1β, IL-6, TNF-α and PON-1). MS was defined according to the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATP III). Patients were followed for 12 months and progression defined as a decrease in baseline eGFR > 10%. RESULTS MS and hypertension were more prevalent amongst ADPKD patients than in the control group. Meanwhile, markers of inflammation such as hs-CRP (3.63 [3.45-5.17] vs. 4.2 [3.45-8.99] mg/dL; p = 0.014), IL-6 (21.65 [14.1-27.49] vs. 24.9 [16.23-39.4] pg/mL; p = 0.004) and IL-1β (21.33 [15.8-26.4] vs. 26.78 [18.22-35] pg/mL; p < 0.001) levels were all more elevated in ADPKD patients than in non-diabetic CKD subjects. In multivariate analysis having a truncating PKD1 mutation predicted (OR 1.25 [1.09-1.43]; p = 0.002) fulfilling the MS criteria. Finally, ADPKD patients fulfilling MS criteria had a significantly more rapid progression during 12 months of follow-up than did those that did not (OR 3.28 [1.09-9.87]; p = 0.035). CONCLUSIONS Our data supports the notion that dysmetabolisms part of the ADPKD phenotype and associated with a poor outcome, especially in patients with a truncating PKD1 mutation.
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Eroglu E, Sipahioglu MH, Senel S, Ertas SK, Savas S, Ozturk F, Kocyigit I, Tokgoz B, Oymak O. Successful treatment of tubulointerstitial nephritis in immunoglobulin G4-related disease with rituximab: A case report. World J Clin Cases 2019; 7:2309-2315. [PMID: 31531324 PMCID: PMC6718787 DOI: 10.12998/wjcc.v7.i16.2309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 07/09/2019] [Accepted: 07/27/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Immunoglobulin G4-related disease (IgG4-RD) is an immune-mediated condition that consisted of disorders that share particular clinical, serologic and pathologic properties. The common presentation of disease includes tumor-like swelling of involved organs and the histopathological findings are a lymphoplasmacytic infiltrate enriched with IgG4-positive plasma cells, and a variable degree of fibrosis that has a characteristic "storiform" pattern in biopsy specimens of tumor-like masses. Major presentations of this disease, which often affects more than one organ, include autoimmune pancreatitis, salivary gland disease (sialadenitis), orbital disease and retroperitoneal fibrosis. The steroid treatment is essential for the treatment of the disease however, other immunosuppressive drugs including cyclophosphamide or rituximab could be an option in resistant cases.
CASE SUMMARY Herein, we reported a 34-year-old woman whom previously had diagnosed with asthma, rheumatoid arthritis and Sjögren’s syndrome (SS) referred our nephrology department due to acute kidney failure development at the last rheumatology visit. After kidney biopsy she has been diagnosed with IgG4-RD and tubuluointerstitial nephritis. She had been accepted resistant to steroid, mycophenolate mofetil, methotrexate and azathioprine therapies due to receiving in last two years. She refused to receive cyclophosphamide due to potential gonadotoxicity of the drug. Thus, rituximab therapy was considered. She received 1000 mg infusion, 15 d apart and 6 mo later it has been administered same protocol. After one year from the last rituximab dose serum creatinine decreased from 4.4 mg/dL to 1.6 mg/dL, erythrocyte sedimentation rate decreased from 109 mm/h to 13 mm/h [reference range (RR) 0-20], and C-reactive protein decreased from 55.6 mg/L to 5 mg/L (RR 0–6). All pathologic lymph nodes and masses were also disappeared.
CONCLUSION Patients with IgG4-RD usually misdiagnosed with rheumatologic diseases including systemic lupus erythematous or SS and also they were screened for the presence of malignancy. Rituximab could be an important treatment option in cases with steroid resistant tubulointerstitial nephritis in IgG4-RD.
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Kocyigit I, Taheri S, Eroglu E, Sener EF, Zararsız G, Uzun I, Tufan E, Mehmetbeyoglu E, Korkmaz Bayramov K, Sipahioglu MH, Ozkul Y, Tokgoz B, Oymak O, Axelsson J. Systemic Succinate, Hypoxia-Inducible Factor-1 Alpha, and IL-1β Gene Expression in Autosomal Dominant Polycystic Kidney Disease with and without Hypertension. Cardiorenal Med 2019; 9:370-381. [PMID: 31319406 DOI: 10.1159/000500478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 04/09/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Cyst pressure induces renin-angiotensin-aldosterone system activation and kidney hypoxia in autosomal dominant polycystic kidney disease (ADPKD). Lipopolysaccharide-induced Toll-like receptor activation causes metabolic disturbances that are triggered by increased succinate levels and hypoxia inducible factors, which results in inflammation via IL-1β activation. Since we aimed to investigate the role of both inflammation and hypoxia in the clinical course of ADPKD, via succinate levels from sera samples, HIF-1α gene expression from whole blood and urine samples and IL-1βgene expression from whole blood were measured. METHODS One hundred ADPKD patients and 100 matched healthy controls were enrolled to this cross-sectional study. Twenty-four-hour ambulatory blood pressure monitoring was conducted in all participants. Blood, serum, and urine samples were taken after 12-h fasting for the measurement of biochemical parameters and succinate levels. Whole blood and urine samples were used for HIF-1α and IL-1β geneexpression by using quantitative real-time PCR. RESULTS There were significant differences in whole blood HIF-1α, IL-1β geneexpression, and serumsuccinate levels between the ADPKD patients and the control subjects. Whole blood HIF-1αgene expression, IL-1β geneexpression, and serumsuccinate levels were also significantly different in ADPKD patients with hypertension in comparison with normotensive ones (p < 0.05). Serum succinate levels and blood IL-1β geneexpression were increased in ADPKD patients with high levels of HIF-1α geneexpression (p = 0.018 and p = 0.029, respectively). CONCLUSIONS Increased age,low eGFR, and HIF-1α and IL-1β geneexpressions were also independently associated with hypertension in ADPKD patients. Inflammation and hypoxia are both relevant factors that might be associated with hypertension in ADPKD.
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Kocyigit I, Taheri S, Eroglu E, Zararsiz G, Sener EF, Uzun I, Imamoglu H, Mehmetbeyoglu E, Unal A, Korkmaz K, Sipahioglu MH, Oymak O, Tokgoz B. Association of OSR-1 With Vascular Dysfunction and Hypertension in Polycystic Kidney Disease. Ther Apher Dial 2019; 24:64-71. [PMID: 31020807 DOI: 10.1111/1744-9987.12814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 03/22/2019] [Accepted: 04/23/2019] [Indexed: 11/30/2022]
Abstract
Autosomal-dominant polycystic kidney disease (ADPKD) is associated with oxidative stress and hypertension development before renal function decline and cardiovascular disease development. Oxidative stress-responsive kinase-1 (OSR-1) participates in the signaling regulating Na+ transport during oxidative stress and also plays a role in the regulation of cell volume and blood pressure. Therefore, we aimed to investigate the potential role of OSR-1 in ADPKD patients. Eighty ADPKD patients, 80 healthy controls, and 80 non-ADPKD patients with hypertension were enrolled in this cross-sectional study. Twenty-four-hour ambulatory blood pressure monitoring was conducted in all participants. Blood samples were taken after 12-h fasting for the measurement of biochemical parameters and OSR-1 gene expression. Vascular dysfunction was assessed using ischemia-induced forearm flow-mediated vasodilation (FMD). Briefly, of the 80 ADPKD patients, 41(51%) were male, and 53(66%) of them were hypertensive. The mean age of the 80 controls was 35.3 ± 12.6 years, and 37(46%) of them were male. The mean age of the 80 non-ADPKD patients with hypertension was 44.6 ± 11.9 years, and 38(47.5) of them were male. There were significant differences in serum OSR-1 gene expression between the ADPKD patients and the control subjects. Serum OSR-1 gene expression was also significantly increased in hypertensive ADPKD patients in comparison with both normotensive ADPKD counterparts and non-ADPKD hypertensive subjects. Serum OSR-1 gene expression was increased in patients with ADPKD than healthy subjects. Low estimated glomerular filtration rate (eGFR), OSR-1 gene expression, total kidney volume (TKV), and high-density lipoprotein (HDL) were also independently associated with hypertension in ADPKD patients.
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Eroglu E, Kontas ME, Kocyigit I, Kontas O, Donmez H, Kucuk A, Sipahioglu MH, Tokgoz B, Oymak O. Brown tumor of the thoracic spine presenting with paraplegia in a patient with peritoneal dialysis. CEN Case Rep 2019; 8:227-232. [PMID: 31089951 DOI: 10.1007/s13730-019-00398-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 04/18/2019] [Indexed: 11/26/2022] Open
Abstract
Secondary and tertiary hyperparathyroidism is an important problem of chronic kidney disease. Brown tumor is a benign, unusual, reactive lesion as a result of disturbed bone remodeling, from long-standing increase in parathyroid hormone level. Brown tumors may cause morbidity due to pressure symptoms on neural structures and spontaneous bone fractures. Herein, we presented a peritoneal dialysis patient with tertiary hyperparathyroidism under calcand calcitriol treatment for 4 years due to refusing of the parathyroidectomy operation. She admitted to hospital for sudden onset back pain with difficulty in gait and walking, and imaging studies showed an expansile mass lesion in the thoracic spine. She was operated for mass and diagnosed with brown tumor. After operation, she lost the ability of walking than become paraplegic and she underwent rehabilitation program. Preventive measures including calcitriol and cinacalcet may cause a modest decrease in parathyroid hormone levels but it should be remembered for the development of bone complications such as brown tumor formation in patients with moderate elevated PTH levels, especially those with tertiary hyperparathyroidism. Parathyroidectomy should be performed without delay in these cases.
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Eroglu E, Kocyigit I, Eren D, Unal A, Sipahioglu MH, Akgun H, Tokgoz B, Oymak O. The Possible Association of Chronic Hepatitis B with Renal AA Amyloidosis. TURKISH JOURNAL OF NEPHROLOGY 2019. [DOI: 10.5152/turkjnephrol.2019.3160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hossein Abedi A, Eroglu E, Kocyigit I, Unal A, Sipahioglu MH, Tokgoz B, Oymak O. Colchicine-and Clarithromycin-Induced Rhabdomyolysis in a Hemodialysis Patient with Familial Mediterranean Fever. TURKISH JOURNAL OF NEPHROLOGY 2019. [DOI: 10.5152/turkjnephrol.2019.2976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Eren N, Gungor O, Kocyigit I, Guzel FB, Erken E, Altunoren O, Tatar E, Eroglu E, Senel E, Kaya B, Paydaş S, Onan B, Sahin S, Yilmaz M, Ulu S, Gursu M, Ozkok A, Yildiz A, Kurultak I, Ucar AR, Tanrisev M, Turgutalp K, Turan MN, Huzmeli C, Soypacaci Z, Akdam H, Huddam B, Adibelli Z, Kara E, Inci A, Turkmen E, Tekce H, Dogukan A, Turkmen A. Acute renal infarction in Turkey: a review of 121 cases. Int Urol Nephrol 2018; 50:2067-2072. [PMID: 30251011 DOI: 10.1007/s11255-018-1979-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/05/2018] [Indexed: 12/15/2022]
Abstract
PURPOSE Renal infarction is a clinical condition which is caused by renal artery occlusion and leads to permanent renal parenchymal damage. In the literature, there are generally case reports on this subject, and few studies that include a large group of patients. Therefore, we aimed to present the data of a large group of patients who were diagnosed with acute renal infarction in our country in this retrospective study. METHODS The data of patients who were diagnosed with acute renal infarction according to clinical and radiological findings in Turkey in the last 3 years were examined. For this purpose, we contacted with more than 40 centers in 7 regions and obtained support from clinically responsible persons. Demographic data of patients, laboratory data at the time of diagnosis, tests performed for etiologic evaluation, given medications, and patients' clinical status during follow-up were obtained from databases and statistical analysis was performed. RESULTS One-hundred and twenty-one patients were included in the study. The mean age was 53 ± 1.4 (19-91) years. Seventy-one (58.7%) patients were male, 18 (14.9%) had diabetes, 53 (43.8%) had hypertension, 36 (30%) had atrial fibrillation (AF), and 6 had a history of lupus + antiphospholipid syndrome (APS). Forty-five patients had right renal infarction, 50 patients had left renal infarction, and 26 (21.5%) patients had bilateral renal infarction. The examinations for the ethiologies revealed that, 36 patients had thromboemboli due to atrial fibrillation, 10 patients had genetic anomalies leading to thrombosis, 9 patients had trauma, 6 patients had lupus + APS, 2 patients had hematologic diseases, and 1 patient had a substance abuse problem. Fifty-seven (57%) patients had unknown. The mean follow-up period was 14 ± 2 months. The mean creatinine and glomerular filtration rate (GFR) values at 3 months were found to be 1.65 ± 0.16 mg/dl and 62 ± 3 ml/min, respectively. The final mean creatinine and GFR values were found to be 1.69 ± 0.16 mg/dl and 62 ± 3 ml/min, respectively. CONCLUSIONS Our study is the second largest series published on renal infarction in the literature. More detailed studies are needed to determine the etiological causes of acute renal infarction occurring in patients.
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Kocyigit I, Eroglu E, Kaynar AS, Kocer D, Kargi S, Zararsiz G, Bayramov R, Imamoglu H, Sipahioglu MH, Tokgoz B, Dundar M, Oymak O. The association of endothelin-1 levels with renal survival in polycystic kidney disease patients. J Nephrol 2018; 32:83-91. [DOI: 10.1007/s40620-018-0514-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/13/2018] [Indexed: 12/29/2022]
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Unal A, Ata S, Karakurkcu C, Ciraci MZ, Kocyigit I, Sipahioglu MH, B Tokgoz, Oymak O. Does Renal Tubular Injury-Induced Local Tissue Hypoxia Involve Post-Transplantation Erythrocytosis? Transplant Proc 2018; 49:1930-1934. [PMID: 28923650 DOI: 10.1016/j.transproceed.2017.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/10/2017] [Accepted: 04/27/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND The pathogenesis of post-transplantation erythrocytosis (PTE) is not well understood and appears to be multifactorial. Our hypothesis in this study was that several factors, including toxicity of calcineurin inhibitor, immunologic factors, and chronic allograft nephropathy, can trigger local tissue hypoxia in peritubular interstitium, which is where production of erythropoietin (EPO) takes place. This local interstitial tissue hypoxia can cause an increase in renal EPO production, which induces the development of PTE. METHODS This cross-sectional study included 15 renal transplant recipients, in whom polycythemia developed after kidney transplantation, with elevated hematocrit level to >51%. Forty-eight age- and gender-matched renal transplant recipients with normal hematocrit level were included as the renal transplant control group. In addition, 13 age- and gender-matched healthy subjects were also included as the healthy control group. We used urine hypoxia-inducible factor-2 alpha (HIF-2α) levels to evaluate whether there is local tissue hypoxia in renal allograft. HIF-2α levels were measured by double antibody sandwich enzyme-linked immunosorbent assay (ELISA). Serum EPO and insulin-like growth factor-1 (IGF-1) levels were also measured. RESULTS HIF-2α levels were significantly lower in the polycythemia group than the other two groups, but there was no significant difference between the healthy control group and the renal transplant control group with regard to HIF-2α levels. There was no significant difference among the 3 study groups in terms of levels of serum EPO and IGF-1. CONCLUSION Local tissue hypoxia in renal allograft does not seem to play an important role in the development of PTE.
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Eroglu E, Kocyigit I, Kaynar A, Kocer D, Zararsiz G, Bayramov R, Imamoglu H, Sipahioglu M, Tokgoz B, Dundar M, Oymak O. FP049THE ASSOCIATION OF ENDOTHELIN-1 LEVELS WITH RENAL SURVIVAL IN POLYCYSTIC KIDNEY DISEASE PATIENTS. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gungor O, EREN N, Guzel FB, Senel E, Ciftcioglu M, Tuncay M, Akkus G, Coskun Yavuz Y, Kocyigit I, Erken E, Altunoren O. FP686AWARENESS OF HEPATITIS AND ITS COMPLICATIONS IN HEMODIALYSIS PATIENTS WITH VIRAL HEPATITIS. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Eroglu E, Kocyigit I, Taheri S, Zararsiz G, Sener E, Uzun I, Imamoglu H, Mehmetbeyoglu E, Unal A, Korkmaz K, Sipahioglu M, Oymak O, Tokgoz B. FP053THE ASSOCIATION OF OSR-1 BETWEEN VASCULAR DYSFUNCTION AND HYPERTENSION IN POLYCYSTIC KIDNEY DISEASE. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kocyigit I, Eroglu E, Gungor O. Clinical problems in hemodialysis patients with autosomal dominant polycystic kidney disease. Semin Dial 2018; 31:268-277. [DOI: 10.1111/sdi.12696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Eroglu E, Unal HU, Guclu A, Kocyigit I, Karaman M, Saglam M, Gezer M, Tas A, Zararsiz G, Eyileten T, Aydin İ, Oguz Y, Gungor O, Yilmaz MI. The association of profilin-1 levels with survival in chronic kidney disease. Eur J Clin Invest 2017; 47. [PMID: 28981140 DOI: 10.1111/eci.12839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 10/01/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Profilin-1 is a ubiquitous, actin-binding protein that plays an important role in the regulation of actin polymerization and cytoskeleton remodelling and contributes to vascular dysfunction. We conducted this study to investigate the association of serum profilin-1 levels with fatal and nonfatal CVE in a cohort of patients with stage 1-5 CKD. MATERIALS AND METHODS Serum concentrations of profilin-1 levels were determined by enzyme-linked immunosorbent assay. Endothelium-dependent vasodilatation (flow-mediated dilatation [FMD]) and endothelium-independent vasodilatation (nitroglycerine-mediated dilatation [NMD]) of the brachial artery were assessed noninvasively, using high-resolution ultrasound. RESULTS Both fatal and nonfatal CVE were significantly higher in patients with high profilin-1 levels. Kaplan-Meier survival curves showed that patients with profilin-1 below the median value (114 pg/mL) had higher cumulative survival compared with patients who had profilin-1 levels above the median value (log-rank test, P < .001). CONCLUSIONS This is the first study that demonstrates the serum profilin-1 is independently associated with endothelial dysfunction, cardiovascular events and survival in patients with CKD.
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Gungor O, Kocyigit I, Carrero JJ, Yılmaz MI. Hormonal changes in hemodialysis patients: Novel risk factors for mortality? Semin Dial 2017; 30:446-452. [PMID: 28608932 DOI: 10.1111/sdi.12611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Patients with end-stage renal disease undergoing dialysis commonly experience derangements in the hypothalamic-pituitary-gonadal axis together with alterations at the level of synthesis and clearance of many hormones. This hormonal imbalance, even if asymptomatic, has recently been associated with increased mortality in these patients. In this review, we summarize observational and mechanistic evidence linking hormonal alterations at the level of the thyroid and sex-hormone systems with this mortality risks.
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Gungor O, Unal HU, Guclu A, Gezer M, Eyileten T, Guzel FB, Altunoren O, Erken E, Oguz Y, Kocyigit I, Yilmaz MI. IL-33 and ST2 levels in chronic kidney disease: Associations with inflammation, vascular abnormalities, cardiovascular events, and survival. PLoS One 2017; 12:e0178939. [PMID: 28614418 PMCID: PMC5470678 DOI: 10.1371/journal.pone.0178939] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 05/22/2017] [Indexed: 02/07/2023] Open
Abstract
Objective Increased inflammation, associated with the increase in chronic kidney disease (CKD) stage, has a very important influence in vascular injury and cardiovascular diseases. In this study, we aimed to investigate the levels of IL-33 and ST2 in the different stages of CKD and to determine their effect on vascular damage and cardiovascular events (CVE). Methods This was an observational cohort study in which serum IL-33 and ST2 were obtained from 238 CKD (stages 1–5) patients. We examined the changes in IL-33/ST2 levels in CKD patients, as well as the association with a surrogate of endothelial dysfunction. Fatal and non-fatal CVE were recorded for a mean of 24 months. We also performed a COX regression analysis to determine the association of IL-33/ST2 levels with CVE and survival. Results IL-33 and ST2 levels were significantly increased and estimated glomerular filtration rates (eGFR) were decreased. Flow-mediated dilatation (FMD) was significantly decreased from stage 1 to stage 5 CKD. IL-33 and ST2 levels were associated with FMD, and ST2 was a predictor. Multivariate Cox analysis showed that the presence of diabetes mellitus, smoking, and proteinuria and haemoglobin, Hs-CRP, IL-33, and ST2 were associated with the risk of CVE. Kaplan-Meier survival curves showed that patients with IL-33 and ST2 levels below the median value (IL-33 = 132.6 ng/L, ST2 = 382.9 pg/mL) had a higher cumulative survival compared with patients who had IL-33 and ST2 levels above the median value (log-rank test, p = 0.000). Conclusion This is the first study that demonstrates that serum IL-33 and ST2 are associated with vascular injury, cardiovascular events, and survival in CKD patients.
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Gungor O, Kocyigit I, Yilmaz MI, Sezer S. Role of vascular calcification inhibitors in preventing vascular dysfunction and mortality in hemodialysis patients. Semin Dial 2017; 31:72-81. [DOI: 10.1111/sdi.12616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Kocyigit I, Taheri S, Sener EF, Eroglu E, Ozturk F, Unal A, Korkmaz K, Zararsiz G, Sipahioglu MH, Ozkul Y, Tokgoz B, Oymak O, Ecder T, Axelsson J. Serum micro-rna profiles in patients with autosomal dominant polycystic kidney disease according to hypertension and renal function. BMC Nephrol 2017; 18:179. [PMID: 28558802 PMCID: PMC5450105 DOI: 10.1186/s12882-017-0600-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 05/23/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Autosomal dominant polycystic kidney disease (ADPKD) is a common hereditary disorder with unclear disease mechanism. Currently, overt hypertension and increased renal volume are the best predictors of renal function. In this study, we assessed the usefulness of selected circulating microRNAs (miRs) to predict disease progress in a cohort with ADPKD. METHODS Eighty ADPKD patients (44.6 ± 12.7 years, 40% female, 65% hypertensive) and 50 healthy subjects (HS; 45.4 ± 12.7, 44% female) were enrolled in the study. Serum levels of 384 miRs were determined by Biomark Real Time PCR. Groups were compared using the limma method with multiple-testing correction as proposed by Smyth (corrected p < 0.01 considered significant). RESULTS Comparing ADPKD to HS, we found significant differences in blood levels of 18 miRs (3 more and 15 less abundant). Of these, miR-3907, miR-92a-3p, miR-25-3p and miR-21-5p all rose while miR-1587 and miR-3911 decreased as renal function declined in both cross-sectional and longitudinal analysis. Using ROC analysis, an increased baseline miR-3907 in the circulation predicted a > 10% loss of GFR over the following 12 months (cut-off >2.2 AU, sensitivity 83%, specificity 78%, area 0.872 [95% CI: 0.790-0.953, p < 0.001]). Adjusting for age and starting CKD stage using multiple binary logistic regression analysis did not abrogate the predictive value. CONCLUSION Increased copy numbers of miR-3907 in the circulation may predict ADPKD progression and suggest pathophysiological pathways worthy of further study.
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Kocyigit I, Yilmaz M, Gungor O, Eroglu E, Unal A, Orscelik O, Tokgoz B, Sipahioglu M, Sen A, Carrero J, Oymak O, Axelsson J. SP006VASOPRESSIN-RELATED COPEPTIN IS A NOVEL PREDICTOR OF EARLY ENDOTHELIAL DYSFUNCTION IN PATIENTS WITH ADULT POLYCYSTIC KIDNEY DISEASE. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx137.sp006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gungor O, Unal HU, Guclu A, Gezer M, Eyileten T, Altunoren O, Erken E, Oguz Y, Kocyigit I, Yilmaz MI. SP197IL-33 AND ST2 LEVELS IN CHRONIC KIDNEY DISEASE: ASSOCIATIONS WITH INFLAMMATION, VASCULAR ABNORMALITIES, CARDIOVASCULAR EVENTS AND SURVIVAL. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx143.sp197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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