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Bal C, Topcuoğlu C, Rıfat Balık A, Yılmaz FM, Erel Ö, Yılmaz G. The effect of acid use as a preservative on the results of biochemical tests measured in 24-h urine. Scand J Clin Lab Invest 2022; 82:329-333. [PMID: 35791842 DOI: 10.1080/00365513.2022.2092899] [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: 10/17/2022]
Abstract
Twenty-four-hour urine measurements play a crucial role in the diagnosis, follow-up and treatment of various diseases. There are different approaches to the collection of urine in patients who need to collect multiple urine samples at a time, especially in hospitals with heavy workloads. In this study, we compared the sodium, potassium, chloride, amylase, calcium, creatinine, phosphorus, microalbumin, protein, magnesium, urea, uric acid, adrenaline, noradrenaline, dopamine, metanephrine, normetanephrine, vanillylmandelic acid, 5-hydroxyindoleacetic acid and homovanillic acid results of 24-h urine samples analyzed immediately without acid addition, which we accepted as the reference and baseline measurement, with the results of the samples analyzed after waiting for 24 h without acid addition, analyzed immediately with acid addition and analyzed after waiting for 24 h with acid addition. Chloride, microalbumin, amylase and protein tests, which are recommended to be measured in the sample without preservatives, are affected by acid addition. Adrenaline, noradrenaline and dopamine, which are the tests recommended to be measured in acid-added urine are degraded in the samples without acid, and the levels of metanephrine and normetanephrine were not significantly degraded in the absence of preservatives.
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Affiliation(s)
- Ceylan Bal
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University, Ankara, Turkey.,Department of Medical Biochemistry, Ankara City Hospital, Ankara, Turkey
| | - Canan Topcuoğlu
- Department of Medical Biochemistry, Ankara City Hospital, Ankara, Turkey
| | - Ahmet Rıfat Balık
- Department of Medical Biochemistry, Gulhane Training and Research Hospital, Ankara, Turkey
| | - Fatma Meriç Yılmaz
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University, Ankara, Turkey.,Department of Medical Biochemistry, Ankara City Hospital, Ankara, Turkey
| | - Özcan Erel
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University, Ankara, Turkey.,Department of Medical Biochemistry, Ankara City Hospital, Ankara, Turkey
| | - Gülsen Yılmaz
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University, Ankara, Turkey.,Department of Medical Biochemistry, Ankara City Hospital, Ankara, Turkey
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Ercan M, Akbulut ED, Oz O, Ataş N, Karaca M, Yılmaz FM. Evaluation of the efficiency of serum biotinidase activity as a newborn screening test in Turkey. J Pediatr Endocrinol Metab 2021; 34:89-94. [PMID: 33189081 DOI: 10.1515/jpem-2020-0382] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/10/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Biotinidase Deficiency (BD) is an autosomal recessive metabolic disorder. However, the relationship between genotype and biochemical phenotype has not been completely elucidated yet. But still, some mutations are accepted to be associated with profound or partial deficiency. We aimed to evaluate the results of biochemical enzyme activity in accordance with the presence of genetic mutations and investigate the correlation between genotype and biochemical phenotype together in the study. METHODS This retrospective study was carried out using data from medical records of 133 infants detected by the newborn screening followed by serum biotinidase activity (BA) detection with semi-quantitative colorimetric method. Mutation analysis was performed to confirm the diagnosis. In addition, the expected biochemical phenotype based on the known mutant alleles were compared with the observed biochemical phenotype. RESULTS When confirmed with mutation analysis results, the diagnostic sensitivity and specificity of serum BA with spectrophotometric method was 93.1% and 95.1%, respectively. In 93.98% of the cases conformity was observed between the biochemical phenotype and the genotype. The c.1330 G>C(p.D444H) and c.470 G>A (p.Arg157His) were the most common allelic variants with frequencies of 63.69% and 33.75%, respectively. CONCLUSIONS The diagnostic test is supposed to have a high sensitivity to identify asymptomatic BD patients. Apparently healthy cases with almost normal enzyme activity and a variant allele in the genetic analysis were reported to present symptoms under stress conditions, which should be kept in mind. This study can be accepted as an informative report as it may contribute to the literature in terms of the allelic frequency and determination of the relation between genotype and biochemical phenotype. Also, method verification including the assessment of possible effects of non-genetic factors on BA according to the certain mutation types is warranted.
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Affiliation(s)
- Mujgan Ercan
- Department of Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Emiş Deniz Akbulut
- Clinical Biochemistry Laboratory, Ministry of Health Ankara City Hospital, Ankara, Turkey
| | - Ozlem Oz
- Department of Medical Genetics, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Nurgul Ataş
- Department of Pediatrics, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Meryem Karaca
- Department of Pediatric Metabolism Disorders, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Fatma Meriç Yılmaz
- Department of Biochemistry, Faculty of Medicine, Yıldırım Beyazıt University, Ankara, Turkey
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Altuntas F, Ata N, Yigenoglu TN, Bascı S, Dal MS, Korkmaz S, Namdaroglu S, Basturk A, Hacıbekiroglu T, Dogu MH, Berber İ, Dal K, Kınık K, Haznedaroglu İ, Yılmaz FM, Kılıç İ, Demircioğlu S, Yosunkaya A, Erkurt MA, Turgut B, Caglayan M, Celik O. Convalescent plasma therapy in patients with COVID-19. Transfus Apher Sci 2020; 60:102955. [PMID: 33011076 PMCID: PMC7501849 DOI: 10.1016/j.transci.2020.102955] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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: 08/29/2020] [Revised: 09/01/2020] [Accepted: 09/06/2020] [Indexed: 12/28/2022]
Abstract
Introduction Passive antibody therapy has been used to immunize vulnerable people against infectious agents. In this study, we aim to investigate the efficacy of convalescent plasma (CP) in the treatment of severe and critically ill patients diagnosed with COVID-19. Method The data of severe or critically ill COVID-19 patients who received anti-SARS-CoV-2 antibody-containing CP along with the antiviral treatment (n = 888) and an age-gender, comorbidity, and other COVID-19 treatments matched severe or critically ill COVID-19 patients at 1:1 ratio (n = 888) were analyzed retrospectively. Results Duration in the intensive care unit (ICU), the rate of mechanical ventilation (MV) support and vasopressor support were lower in CP group compared with the control group (p = 0.001, p = 0.02, p = 0.001, respectively). The case fatality rate (CFR) was 24.7 % in the CP group, and it was 27.7 % in the control group. Administration of CP 20 days after the COVID-19 diagnosis or COVID-19 related symptoms were associated with a higher rate of MV support compared with the first 3 interval groups (≤5 days, 6−10 days, 11−15 days) (p=0.001). Conclusion CP therapy seems to be effective for a better course of COVID-19 in severe and critically ill patients.
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Affiliation(s)
- Fevzi Altuntas
- University of Health Sciences, Ankara Oncology Training and Research Hospital, Department of Hematology and Bone Marrow Transplantation Center, Ankara, Turkey; Ankara Yıldırım Beyazıt University, School of Medicine, Department of Hematology, Ankara, Turkey.
| | - Naim Ata
- Republic of Turkey, Ministry of Health, Department of Strategy Development, Ankara, Turkey.
| | - Tugce Nur Yigenoglu
- University of Health Sciences, Ankara Oncology Training and Research Hospital, Department of Hematology and Bone Marrow Transplantation Center, Ankara, Turkey.
| | - Semih Bascı
- University of Health Sciences, Ankara Oncology Training and Research Hospital, Department of Hematology and Bone Marrow Transplantation Center, Ankara, Turkey.
| | - Mehmet Sinan Dal
- University of Health Sciences, Ankara Oncology Training and Research Hospital, Department of Hematology and Bone Marrow Transplantation Center, Ankara, Turkey.
| | - Serdal Korkmaz
- University of Health Sciences, Kayseri Training and Research Hospital, Department of Hematology, Kayseri, Turkey.
| | - Sinem Namdaroglu
- University of Health Sciences, Bozyaka Training and Research Hospital, Department of Hematology, Izmir, Turkey.
| | - Abdulkadir Basturk
- Selcuk University, School of Medicine, Department of Internal Medicine, Division of Hematology, Konya, Turkey.
| | - Tuba Hacıbekiroglu
- Sakarya University, School of Medicine, Department of Internal Medicine, Division of Hematology, Sakarya, Turkey.
| | - Mehmet Hilmi Dogu
- İstanbul Training and Research Hospital, Department of Hematology, İstanbul, Turkey.
| | - İlhami Berber
- Inonu University, School of Medicine, Department of Internal Medicine, Division of Hematology, Malatya, Turkey.
| | - Kursat Dal
- Kecioren Training and Research Hospital, Department of Internal Medicine, Ankara, Turkey.
| | | | - İbrahim Haznedaroglu
- Hacettepe University, School of Medicine, Department of Internal Medicine, Division of Hematology, Ankara, Turkey.
| | | | - İsa Kılıç
- Bursa City Hospital, Department of Anesthesiology, Bursa, Turkey.
| | - Sinan Demircioğlu
- Necmettin Erbakan University, School of Medicine, Department of Internal Medicine, Division of Hematology, Konya, Turkey.
| | - Alper Yosunkaya
- Necmettin Erbakan University, School of Medicine, Department of Anesthesiology, Konya, Turkey.
| | - Mehmet Ali Erkurt
- Inonu University, School of Medicine, Department of Internal Medicine, Division of Hematology, Malatya, Turkey.
| | - Burhan Turgut
- Namık Kemal University, School of Medicine, Department of Internal Medicine, Division of Hematology, Tekirdağ, Turkey.
| | | | - Osman Celik
- Republic of Turkey, Ministry of Health, Public Hospitals General Directorate, Ankara, Turkey.
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Fırat Oğuz E, Mungan S, Meriç Yılmaz F, Ercan M, Uysal S. The Predictive Role of Neurobiochemical Markers in Multiple Sclerosis. Istanbul Med J 2020. [DOI: 10.4274/imj.galenos.2019.75002] [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: 12/01/2022] Open
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Yücel ÇY, Erden G, Yılmaz FM, Sezer S, Çalcı E. IGF-I and IGFBP-3 levels and their correlations with carcinoembryonic antigen in colorectal cancer patients. Alexandria Journal of Medicine 2019. [DOI: 10.1016/j.ajme.2017.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
| | - Gönül Erden
- Ankara Numune Training and Research Hospital, Biochemistry Clinic, Turkey
| | - Fatma Meriç Yılmaz
- Yıldırım Beyazıt University, Medical Faculty, Department of Biochemistry, Turkey
| | - Sevilay Sezer
- Ankara Numune Training and Research Hospital, Biochemistry Clinic, Turkey
| | - Esin Çalcı
- Ankara Numune Training and Research Hospital, Biochemistry Clinic, Turkey
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Topçuoğlu C, Sezer S, Yılmaz FM, Kösem A, Ercan M, Turhan T. Evaluation of the analytical performance of the Beckman Coulter Unicel DXI 800 Access Total 25(OH) Vitamin D immunoassay. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/labmed-2018-0068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
AbstractBackgroundAs vitamin D has recently been implicated in various diseases, vitamin D testing has gained a lot more significance. Vitamin D deficiency is quite prevalent, and detection of this condition is important. Several manufacturers have developed new automated immunoassays for this purpose. In this study, we aimed to evaluate the analytical performance of the Access Total 25(OH) Vitamin D immunoassay on the Beckman Coulter Unicel DXI 800 analyzer, through comparison with the reference method, liquid chromatography/tandem mass spectrometry (LC-MS/MS).MethodsThe study was conducted with 148 patient samples which were sent to Ankara Numune Training and Research Hospital for routine vitamin D testing. Every sample was analyzed with both Unicel DXI 800 immunoassay analyzer and LC-MS/MS. The concordance of the results was evaluated with Passing-Bablok regression analysis and Bland-Altman plot. Additionally, imprecision, interference, limit of blank (LOB), recovery, linearity and carry-over studies were performed for the Beckman Coulter Unicel DXI 800 analyzer.ResultsWhen compared to LC-MS/MS, the Access Total 25(OH) Vitamin D immunoassay on the Beckman Coulter Unicel DXI 800 analyzer had an R-value of 0.957 (intercept: −3.938, slope: 1.185) and a mean bias of 9.5%. The concordance correlation coefficient (CCC) between the two methods was 0.916. The intra-assay, inter-assay and total coefficient of variation (CV%) for the Unicel DXI 800 vitamin D immunoassay were 3.3%, 5.3% and 8.3%, respectively, at 31.7 ng/mL concentration, and 2.1%, 3.2% and 7%, respectively, at 66.8 ng/mL concentration.ConclusionsThe Access Total 25(OH) Vitamin D immunoassay method has acceptable analytical performance, and the results are in concordance with the LC-MS/MS results.
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Affiliation(s)
- Canan Topçuoğlu
- Biochemistry Department, Ankara Numune Training and Research Hospital, Clinical Biochemistry Laboratory, Ankara, Turkey, Tel.: +90 (312) 508 4456, Fax: +90 (312) 508 4910
| | - Sevilay Sezer
- Biochemistry Department, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Fatma Meriç Yılmaz
- Biochemistry Department, Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
| | - Arzu Kösem
- Biochemistry Department, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Mujgan Ercan
- Biochemistry Department, Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Turan Turhan
- Biochemistry Department, Ankara Numune Training and Research Hospital, Ankara, Turkey
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Akbal E, Koçak E, Köklü S, Ergül B, Akyürek Ö, Yılmaz FM. Serum Toll-Like Receptor-2, Toll-Like Receptor-4 Levels in Patients with HBeAg-Negative Chronic Viral Hepatitis B. Viral Immunol 2017; 30:278-282. [PMID: 28414577 DOI: 10.1089/vim.2016.0131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/14/2022] Open
Abstract
Toll-like receptors (TLRs) may play an important role in hepatitis-B pathogenesis. However, serum TLR-2 and TLR-4 levels and their association with serum liver enzymes, hepatitis B virus (HBV) DNA, quantitative HBsAg levels, and liver biopsy findings, are unknown. A total of naive 40 HBeAg (-) chronic hepatitis B (CHB) patients and 20 healthy control subjects were recruited in this study. Liver tests, HBV DNA, serum TLR-2 and TLR-4, and quantitative HBsAg levels were evaluated among all groups. The relationship among TLR-2, TLR-4, quantitative HBsAg levels and liver tests, and liver histological findings were investigated with correlation analysis. Serum TLR-2 and TLR-4 levels in HBeAg (-) CHB patients were higher than in the control group. There was a positive correlation between serum TLR-2, TLR-4, and HBV DNA and ALT levels. We have further demonstrated that serum TLR-2 levels are correlated with AST and quantitative HBsAg levels. However, TLRs levels were not linked to the liver biopsy findings. TLR can have an important role in hepatitis B pathogenesis. Liver injury in CHB may cause elevated TLR-2 and TLR-4 levels.
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Affiliation(s)
- Erdem Akbal
- 1 Department of Gastroenterology, Florence Nightingale Hospital, Faculty of Medicine, İstanbul Bilim University , İstanbul, Turkey
| | - Erdem Koçak
- 1 Department of Gastroenterology, Florence Nightingale Hospital, Faculty of Medicine, İstanbul Bilim University , İstanbul, Turkey
| | - Seyfettin Köklü
- 2 Department of Gastroenterology, Faculty of Medicine, Hacettepe University , Ankara, Turkey
| | - Bilal Ergül
- 3 Department of Gastroenterology, Kırşehir State Hospital , Kırşehir, Turkey
| | - Ömer Akyürek
- 4 Department of Internal Medicine, Medova Hospital , Konya, Turkey
| | - Fatma Meriç Yılmaz
- 5 Department of Medical Biochemistry, Numune Education and Research Hospital , Ankara, Turkey
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Altay M, Ateş İ, Yılmaz FM, Topçuoğlu C, Kaplan M. Rola krążącego sTWEAK w patogenezie choroby Hashimoto — badanie pilotażowe. Endokrynologia Polska 2016; 67:562-566. [DOI: 10.5603/ep.a2016.0033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 01/26/2016] [Accepted: 12/15/2015] [Indexed: 11/25/2022]
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Yılmaz FM, Kahveci R, Aksoy A, Özer Kucuk E, Akın T, Mathew JL, Meads C, Zengin N. Impact of Laboratory Test Use Strategies in a Turkish Hospital. PLoS One 2016; 11:e0153693. [PMID: 27077653 PMCID: PMC4831677 DOI: 10.1371/journal.pone.0153693] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 04/03/2016] [Indexed: 11/19/2022] Open
Abstract
Objectives Eliminating unnecessary laboratory tests is a good way to reduce costs while maintain patient safety. The aim of this study was to define and process strategies to rationalize laboratory use in Ankara Numune Training and Research Hospital (ANH) and calculate potential savings in costs. Methods A collaborative plan was defined by hospital managers; joint meetings with ANHTA and laboratory professors were set; the joint committee invited relevant staff for input, and a laboratory efficiency committee was created. Literature was reviewed systematically to identify strategies used to improve laboratory efficiency. Strategies that would be applicable in local settings were identified for implementation, processed, and the impact on clinical use and costs assessed for 12 months. Results Laboratory use in ANH differed enormously among clinics. Major use was identified in internal medicine. The mean number of tests per patient was 15.8. Unnecessary testing for chloride, folic acid, free prostate specific antigen, hepatitis and HIV testing were observed. Test panel use was pinpointed as the main cause of overuse of the laboratory and the Hospital Information System test ordering page was reorganized. A significant decrease (between 12.6–85.0%) was observed for the tests that were taken to an alternative page on the computer screen. The one year study saving was equivalent to 371,183 US dollars. Conclusion Hospital-based committees including laboratory professionals and clinicians can define hospital based problems and led to a standardized approach to test use that can help clinicians reduce laboratory costs through appropriate use of laboratory tests.
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Affiliation(s)
- Fatma Meriç Yılmaz
- Yildirim Bayezid University, Department of Biochemistry, Ankara, Turkey
- * E-mail:
| | - Rabia Kahveci
- Ankara Numune Training and Research Hospital, Health Technology Assessment Unit, Ankara, Turkey
| | - Altan Aksoy
- Ankara Numune Training and Research Hospital, Department of Microbiology, Ankara, Turkey
| | - Emine Özer Kucuk
- Ankara Numune Training and Research Hospital, Health Technology Assessment Unit, Ankara, Turkey
| | - Tezcan Akın
- Ankara Numune Training and Research Hospital, Department of General Surgery, Ankara, Turkey
| | - Joseph Lazar Mathew
- Advanced Pediatrics Centre PostGraduate Institute of Medical Education and Research, Chandigarh, India
| | - Catherine Meads
- Brunel University, Health Economics Research Group, Uxbridge, United Kingdom
| | - Nurullah Zengin
- Ankara Numune Training and Research Hospital, Department of Oncology, Ankara, Turkey
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Ercan M, Akbulut ED, Abuşoğlu S, Yılmaz FM, Oğuz EF, Topçuoğlu C, Öztekin V, Boğdaycıoğlu N. Stability of urine specimens stored with and without preservatives at room temperature and on ice prior to urinalysis. Clin Biochem 2015; 48:919-22. [DOI: 10.1016/j.clinbiochem.2015.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 05/14/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
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Tokmak A, Yıldırım G, Sarıkaya E, Çınar M, Boğdaycıoğlu N, Yılmaz FM, Yılmaz N. Increased oxidative stress markers may be a promising indicator of risk for primary ovarian insufficiency: a cross-sectional case control study. Rev Bras Ginecol Obstet 2015; 37:411-6. [PMID: 26352944 DOI: 10.1590/so100-720320150005397] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE The aim of this study was to evaluate serum levels of inducible nitric oxide synthase (INOS), myeloperoxidase (MPO), total antioxidant status (TAS), and total oxidative status (TOS) in women with primary ovarian insufficiency (POI) and to compare them with healthy fertile women. We also examined the possible risk factors associated with POI. METHODS This cross-sectional case control study was conducted in Zekai Tahir Burak Women's Health Education and Research Hospital. The study population consisted of 44 women with POI (study group) and 36 healthy fertile women (control group). In all patients, serum levels of INOS, MPO, TAS, and TOS were determined. INOS and MPO levels were measured by enzyme-linked immunosorbent assay whereas colorimetric method was used for evaluating TAS and TOS levels. Age, body mass index (BMI), obstetric history, smoking status, family history, comorbidities, sonographic findings, complete blood count values, C-reactive protein and baseline hormone levels were also analyzed. Student's t-test or Mann-Whitney U test was used to compare continuous variables between the groups; categorical data were evaluated by using Pearson χ2 or Fisher exact test, when appropriate. Binary logistic regression method was used to identify risk factors for POI. RESULTS We found significantly elevated levels of INOS (234.1±749.5 versus133.8±143.0; p=0.005), MPO (3,438.7±1,228.6 versus 2,481.9±1,230.1; p=0.001), and TOS (4.3±1.4 versus 3.6±1.4; p=0.02) in the sera of the study group when compared to the BMI-age matched control group. However, difference in serum levels of TAS were not significant between the 2 groups (1.7±0.2 versus 1.6±0.2; p=0.15). Logistic regression method demonstrated that BMI <25 kg/m2, nulliparity, family history of POI, smoking, and elevated serum levels of INOS, MPO, and TOS were independent risk factors for POI. CONCLUSION We found an increase in INOS, MPO, and TOS in women with POI. These serum markers may be promising in early diagnosis of POI. Further large-scale studies are required to determine whether oxidative stress markers have a role in diagnosing POI.
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Affiliation(s)
- Aytekin Tokmak
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, TR
| | - Gülçin Yıldırım
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, TR
| | - Esma Sarıkaya
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, TR
| | - Mehmet Çınar
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, TR
| | - Nihal Boğdaycıoğlu
- Department of Biochemistery, Ankara Numune Training and Research Hospital, Ankara, TR
| | - Fatma Meriç Yılmaz
- Department of Biochemistery, Ankara Numune Training and Research Hospital, Ankara, TR
| | - Nafiye Yılmaz
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, TR
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Oğuz E, Türkyürek C, Ercan M, Erdoğan S, Yılmaz FM. Comparison of eGFR Values Calculated by Using Serum Cystatin C and Serum Creatinine in Patients with Diabetes Mellitus. J Clin Exp Invest 2015. [DOI: 10.5799/ahinjs.01.2015.02.0496] [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: 11/23/2022] Open
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Uysal S, Yılmaz FM, Karatoprak K, Artüz F, Cumbul NU. The levels of serum pentraxin3, CRP, fetuin-A, and insulin in patients with psoriasis. Eur Rev Med Pharmacol Sci 2014; 18:3453-3458. [PMID: 25491620] [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: 06/04/2023]
Abstract
OBJECTIVE The objective of this study was to evaluate the relationship between disease severity and biochemical parameters such as pentraxin3, CRP, fetuin-A, insulin and HOMA-IR levels in patients with psoriasis. PATIENTS AND METHODS This study included 58 patients with psoriasis and 30 healthy controls admitted to Ankara Numune Teaching and Research Hospital between January 2011-August 2012. Serum pentraxin3, CRP, fetuin-A and insulin concentrations were determined. Also, HOMA-IR values were calculated. RESULTS The serum values for CRP, insulin, HOMA-IR, pentraxin-3 and fetuin-A in patients with psoriasis were elevated than control subjects (p values=0.002, 0.003, 0.003, 0.006 vs 0.007, respectively). According to the PASI score, patients were divided into three groups, minimal, moderate and severe psoriasis. There were positive correlation between the levels of CRP and insulin, HOMA-IR, PASI score. In addition, PASI score values were positively correlated with insulin, HOMA-IR and fetuin-A levels. CONCLUSIONS Elevated levels of pentraxin3, CRP, fetuin-A, insulin and HOMA-IR might play a role in the pathogenesis of psoriasis. Higher CRP, fetuin-A, insulin and HOMA-IR concentrations were associated with the severity of the psoriasis.
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Affiliation(s)
- S Uysal
- Clinic of Biochemistry, Ankara Numune Education and Research Hospital, Ankara, Turkey.
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Yılmaz FM, Züngün C, Çakır B. Evaluation of the analytical performance of Roche immunoturbidimetric immunoglobulin assays and comparing to Dade Behring immunonephelometer. J Clin Exp Invest 2014. [DOI: 10.5799/ahinjs.01.2014.03.0420] [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: 11/23/2022] Open
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Tuna MM, Imga NN, Doğan BA, Yılmaz FM, Topçuoğlu C, Akbaba G, Berker D, Güler S. Non-functioning adrenal incidentalomas are associated with higher hypertension prevalence and higher risk of atherosclerosis. J Endocrinol Invest 2014; 37:765-768. [PMID: 24923898 DOI: 10.1007/s40618-014-0106-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [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: 04/03/2014] [Accepted: 05/27/2014] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Adrenal incidentalomas (AIs) have been associated with an increased incidence of several cardiovascular risk factors. The aim of this study was to investigate plasma adiponectin, leptin, resistin, homocysteine, high sensitive C-reactive protein levels, and carotid intima media thickness (CIMT) in patients with non-functioning AI (NFAI). MATERIALS AND METHODS This study included data from 28 patients with NFAI (Group 1) and 41 controls (Group 2). Of the patients, 50 were female and 19 were male, and the mean age was 46.7 (range 37-65) years. RESULTS There were no significant differences between Group 1 and 2 in terms of age, sex, or BMI. Hypertension prevalence was significantly higher in the NFAI group than in the control group (p = 0.01). Both groups had similar lipid, blood glucose, homocysteine, uric acid, high-sensitivity CRP levels. Adiponectin, leptin, and resistin levels were similar in both groups. CIMTs were significantly higher in the NFAI group. CONCLUSION There is increasing evidence that several cardiometabolic risk factors occur with higher prevalence in non-functioning adrenal incidentaloma patients compared to age-matched healthy subjects. In our study, hypertension prevalence and CIMT were higher in the NFAI group. Serum adipokine levels were similar for both groups.
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Affiliation(s)
- Mazhar Müslüm Tuna
- Endocrinology and Metabolism Division, Medical Faculty, Dicle University, Diyarbakır, Turkey.
| | - Narin Nasıroğlu Imga
- Endocrinology and Metabolism Division, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Berçem Ayçiçek Doğan
- Endocrinology and Metabolism Division, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Fatma Meriç Yılmaz
- Biochemistry Division, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Canan Topçuoğlu
- Biochemistry Division, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Gülhan Akbaba
- Endocrinology and Metabolism Division, Medical Faculty, Mugla University, Muğla, Turkey
| | - Dilek Berker
- Endocrinology and Metabolism Division, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Serdar Güler
- Endocrinology and Metabolism Division, Medical Faculty, Hitit University, Çorum, Turkey
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Oğuz E, Ercan M, Yılmaz FM. Normoglisemik Bireylerde Demir Eksikliği Anemisinin Hemoglobin A1c Düzeylerine Etkisi. Ankara Med J 2014. [DOI: 10.17098/amj.19701] [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: 11/23/2022] Open
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Tuna MM, Doğan BA, Karakılıç E, Arduç A, Işık S, Yılmaz FM, Topçuoğlu C, Berker D, Güler S. Evaluation of adipocytokine levels and vascular functions in young aged to middle aged men with idiopathic hypogonadotrophic hypogonadism. Neuro Endocrinol Lett 2014; 35:640-644. [PMID: 25617889] [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] [Received: 08/22/2014] [Accepted: 10/12/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE Hypogonadism has major effects on the urogenital system, in addition to other systems, the cardiovascular system in particular. There have been few studies conducted on markers of atherosclerosis, such as flow mediated dilatation (% FMD), carotid intima-media thickness (CIMT) and adipocytokine levels in idiopatic hypogonadotropic hypogonadal (IHH) males mostly in adult patients. The aim of this study was to evaluate the relationship between androgens and adipocytokines and parameters of vascular functions in hypogonadal men. MATERIALS AND METHODS The study population consisted of 11 treatment naive IHH patients (group 1) and 15 age-matched healthy control males (group 2). A fasting blood sample was obtained for leptin, adiponectin and resistin. The endothelial functions were evaluated by studying % FMD and CIMT by high resolution B-mode ultrasound. RESULTS No significant differences in age, body mass index, systolic and diastolic blood pressure were recorded between the two groups. The leptin level was significantly higher in group 1, whereas adiponectin and resistin levels were same between two groups. There was a negative correlation between total testosterone and carotid intima-media thickness (r=-0.656, p=0.008), and a negative correlation between total testosterone and leptin level (r=-0.794, p<0.001). No correlation was found between leptin and CIMT (p=0.184). CONCLUSION Testosterone deficiency in hypogonadal men is associated with vascular parameters of atherosclerosis. The findings may establish indications for testosterone replacement therapy in hypogonadal men.
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Affiliation(s)
- Mazhar Müslüm Tuna
- Department of Endocrinology and Metabolism, Medical Faculty, Dicle University, Turkey
| | - Berçem Ayçiçek Doğan
- Department of Endocrinology and Metabolism, Ankara Numune Training and Research Hospital, Turkey
| | - Ersen Karakılıç
- Department of Endocrinology and Metabolism, Ankara Numune Training and Research Hospital, Turkey
| | - Ayşe Arduç
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Diabetes, Endocrine and Obesity Branch, Washington, USA
| | - Serhat Işık
- Department of Endocrinology and Metabolism, Ankara Numune Training and Research Hospital, Turkey
| | - Fatma Meriç Yılmaz
- Department of Medical Biochemistry, Ankara Numune Training and Research Hospital, Turkey
| | - Canan Topçuoğlu
- Department of Medical Biochemistry, Ankara Numune Training and Research Hospital, Turkey
| | - Dilek Berker
- Department of Endocrinology and Metabolism, Ankara Numune Training and Research Hospital, Turkey
| | - Serdar Güler
- Department of Endocrinology and Metabolism, Medical Faculty, Hitit University, Turkey
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Tutkun E, Yılmaz H, Yılmaz FM, Züngün C. Response to letter to the editor regarding "Assessment of serum S100B and neuron specific enolase levels to evaluate the neurotoxıc effects of organıc solvent exposure" in Clinical Toxicology 2013; (doi:10.3109/15563650.2013.820831). Clin Toxicol (Phila) 2013; 51:1245. [PMID: 24138502 DOI: 10.3109/15563650.2013.851389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Engin Tutkun
- Ankara Occupational Diseases Hospital Ankara , Turkey
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Oğuz E, Ercan M, Uysal S, Sezer S, Topçuoğlu C, Yılmaz FM. Data evaluation of Ankara Numune Training and Education Hospital immunofixation electrophoresis. J Clin Exp Invest 2013. [DOI: 10.5799/ahinjs.01.2013.02.0255] [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: 11/23/2022] Open
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20
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Topçuoğlu C, Yılmaz FM, Şahin D, Aydoğdu S, Yılmaz G, Saydam G, Yücel D. Total-and lipid-associated sialic acid in serum and thrombocytes in patients with chronic heart failure. Clin Biochem 2010; 43:447-9. [DOI: 10.1016/j.clinbiochem.2009.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 11/09/2009] [Accepted: 11/25/2009] [Indexed: 10/20/2022]
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Ataseven H, Öztürk ZA, Arhan M, Yüksel O, Köklü S, İbiş M, Başar Ö, Yılmaz FM, Yüksel İ. Cancer antigen 125 levels in inflammatory bowel diseases. J Clin Lab Anal 2009; 23:244-8. [PMID: 19623645 PMCID: PMC6649025 DOI: 10.1002/jcla.20323] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Cancer antigen 125 (CA-125) is a tumor marker used for the diagnosis and monitoring of ovarian carcinoma. It can also be elevated in endometriosis, inflammations, and in nongynecological malignancies. Up to date, serum CA-125 levels in inflammatory bowel diseases (IBD) have not been studied before. AIM To assess the levels of CA-125 in patients with ulcerative colitis (UC) and Crohn's disease (CD). METHODS Serum levels of CA-125 were investigated in 68 cases with UC (male/female: 47/21), 32 CD (male/female: 21/11), and 31 healthy controls (male/female: 16/15). Levels of CA-125 were also compared among UC patients according to lesion location, severity, and activity of CD. RESULTS Serum CA-125 levels were 17.29+/-24.50 U/ml, 15.56+/-20.74 U/ml, and 8.85+/-2.62 U/ml in patients with UC, CD, and healthy controls, respectively. Serum CA-125 levels were significantly higher in UC compared to control group (P=0.001). Serum CA-125 levels were higher in CD patients compared to control group but there was no significance (P=0.087). Serum CA-125 levels were higher in pancolitis compared to distal type and left-sided UC. CONCLUSIONS Our data suggest that serum CA-125 levels may be increased in patients with IBDs.
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Affiliation(s)
- Hilmi Ataseven
- Department of Gastroenterology, Erzurum Bölge Egˇitim ve Araştırma Hastanesi, Erzurum, Turkey
| | - Zeynel Abidin Öztürk
- Department of Internal Medicine, Ankara Education and Research Hospital, Ankara, Turkey
| | - Mehmet Arhan
- Department of Gastroenterology, Türkiye Yüksek İhtisas Hospital, Ankara, Turkey
| | - Osman Yüksel
- Department of Gastroenterology, Dışkapı Yıldırım Beyazıt Hospital, Ankara, Turkey
| | - Seyfettin Köklü
- Department of Gastroenterology, Ankara Education and Research Hospital, Ankara, Turkey
| | - Mehmet İbiş
- Department of Gastroenterology, Türkiye Yüksek İhtisas Hospital, Ankara, Turkey
| | - Ömer Başar
- Department of Gastroenterology, Dışkapı Yıldırım Beyazıt Hospital, Ankara, Turkey
| | - Fatma Meriç Yılmaz
- Department of Biochemistry, Ankara Education and Research Hospital, Ankara, Turkey
| | - İlhami Yüksel
- Department of Gastroenterology, Dışkapı Yıldırım Beyazıt Hospital, Ankara, Turkey
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Yılmaz FM, Yılmaz G, Yücel D. Is secondary wavelength always necessary in turbidimetric urine protein measurements? Clin Biochem 2008; 41:645-7. [DOI: 10.1016/j.clinbiochem.2008.01.011] [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] [Received: 09/17/2007] [Revised: 12/28/2007] [Accepted: 01/11/2008] [Indexed: 10/22/2022]
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