1
|
Can U, Coskun A, Canakci C, Simsek B, Karaca Y, Sabuncu K, Akca O. A new promising indicator in prostate cancer screening: Prostate-specific antigen fluctuation rate. Actas Urol Esp 2024; 48:470-475. [PMID: 38369288 DOI: 10.1016/j.acuroe.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 02/20/2024]
Abstract
OBJECTIVES To evaluate whether PSA fluctuation can be used to predict the risk of prostate cancer. MATERIALS AND METHODS The study included 1244 patients who underwent prostate biopsy at Kartal Dr. Lutfi Kirdar City Hospital between 2013 and 2021 (848 in non-cancer; 396 in cancer). The patient's age, last two PSA values (PSA1 and PSA2) within three months before the biopsy, the duration between two PSAs (days), prostate size (g) and PSA density (PSAD) were all recorded. PSA fluctuation rate (PSAfr) was defined as the change rate between two PSA values. RESULTS PSAfr was significantly higher in the non-cancer group than in the prostate cancer group (15.2% (20.5) and 9.6% (14.4), P=.019). A Simple linear regression was used to examine the relationship between PSAfr and other factors such as age, PSA, PSAD, and prostate volume, but it was shown that these had no effect on PSA fluctuations. ROC analysis revealed a relatively low Area Under the Curve (AUC) for PSAfr (AUC, 0.584 (0.515-0.653)). However, the cut-off value of 12.35% was found to be significant, with a sensitivity of 58% and a specificity of 59% (P:.019, 95%CI). The odds ratio, adjusted for age, PSAD, and PSA2, was calculated as 0.545 (0.33-0.89) using logistic regression analysis to show the relationship between prostate cancer and PSAfr. As a result, those with high PSAfr were found to be 1.83 times less likely to be diagnosed with prostate cancer than those with low fluctuations. CONCLUSION PSAfr could be used in nomograms to predict prostate cancer risk and reduce the number of unnecessary biopsies.
Collapse
|
2
|
Wentzel J, Papafaklis M, Antoniadis A, Takahashi S, Cefalo N, Cormier M, Saito S, Coskun A, Stone P. Shear stress related plaque progression in human coronary arteries is dependent on sex and age. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
3
|
Wentzel J, Papafaklis M, Antoniadis A, Takahashi S, Cefalo N, Cormier M, Saito S, Coskun A, Stone P. Coronary plaque natural history displays significant longitudinal heterogeneity along the length of individual coronary plaques. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
4
|
Dogan MS, Koc G, Doganay S, Dogan S, Elmalı F, Ciraci S, Gorkem SB, Guzel M, Coskun A. Computed tomography depiction of normal inguinal lymph nodes in children. Folia Morphol (Warsz) 2020; 79:799-804. [DOI: 10.5603/fm.a2020.0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 12/20/2019] [Indexed: 11/25/2022]
|
5
|
Wentzel J, Papafaklis M, Antoniadis A, Takahashi S, Cefalo N, Cormier M, Saito S, Coskun A, Stone P. Sex-related differences in geometry, plaques and shear stress related plaque-progression in human coronary arteries. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atherosclerosis manifests itself differently in women compared to men. Since the pathophysiology of atherosclerotic plaques is known to be related to endothelial shear stress (ESS), it was hypothesized that female compared to male coronary arteries demonstrate a different i) ESS and ii) ESS related plaque progression.
Methods
1183 coronary arteries (male/female:944/239) from the PREDICTION trial were studied for differences in vessel geometry (plaque area (PA) and lumen area (LA)), hemodynamic parameters (flow, minimal ESS over 90 degree arc (minESS) and maximal ESS over 90 degree arc (maxESS)) and ESS related plaque progression (1 year follow up) measured as change in maximal plaque thickness and plaque burden comparing female to male arteries. Arterial geometry and ESS measures were derived from IVUS-based vascular profiling and reported per 3 mm segments. For plaque progression studies minESS was subdivided into low, mid and high (<1,1–1.7,>1.7 Pa). To test statistical differences univariate anova or linear mixed models were used.
Results
13030 3mm-segments (m/f: 10.465/2565) were analyzed. Female compared to male coronary arteries were smaller and presented with less plaque area (Table I). No differences in average ESS, minESS and maxESS were found for male versus female coronary arteries, partly explained by the lower flows in female arteries (Table I). The ESS-related plaque growth showed for both sexes an significant inverse relationship between maximal wall thickness (Figure, left) and plaque burden (Figure, right) and the three minESS categories. However, ESS-related plaque growth was not different for male vs females.
Conclusion
Our data demonstrated that vessel and plaque size are smaller in female compared to male coronary arteries. However, ESS and ESS related plaque progression were not different.
Shear stress related plaque progression
Funding Acknowledgement
Type of funding source: None
Collapse
|
6
|
Wentzel J, Papafaklis M, Antoniadis A, Takahashi S, Cefalo N, Cormier M, Saito S, Coskun A, Stone P. Coronary plaque natural history displays significant longitudinal heterogeneity along the length of individual coronary plaques. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The natural history of plaque growth is, among other systemic risk factors, related to the blood flow induced local shear stress. Especially at regions of low shear stress plaques are initiated. Upon plaque encroachment into the lumen, plaques will be exposed to high shear stress. Interestingly, it has been observed that individual plaques are very heterogeneous regarding the local shear stress exposure and remodeling patterns along the plaque length. However no information is available on the spatial heterogeneity of temporal changes in plaques burden. We studied the longitudinal spatial heterogeneity of plaque burden progression, regression, quiescence in human coronary plaques.
Methods
591 coronary arteries from 302 patients with coronary artery disease who presented with an acute coronary syndrome from the PREDICTION study were investigated for local plaque progression, regression, quiescence patterns after 6–10 months follow up. Arterial geometry was derived from angiography/IVUS-based vascular profiling and reported in 3 mm segments. Plaques were defined as >3 consecutive segments with maximal wall thickness>0.5 mm. Plaque progression was defined as >5% increase, regression as <−5% decrease, and quiescence as no change in plaque burden (plaque area/ total vessel area * 100%). Logistic mixed model regression analysis was performed with plaque progression features as outcome and plaque length as independent variable with vessel as random factor to account for clustering of the data.
Results
5658 3mm-segments of 661 plaques were analyzed. Plaque burden changes over time ranged from −22% to +20%, with an average of −0.4%±4% which was not significant different from 0. Among all plaques, 56% showed segments with plaque progression of more than 5%, 60% with plaque regression (<−5%) and 96% of the plaques had segments that did not change over time (quiescence). On average, 17% of the plaque length displayed plaque progression, 20% regression and 63% was quiescent. The presence and number of features (progression, regression, quiescence) within the plaque were significantly related to the plaque length (figure).
Conclusion
Plaques are very heterogeneous in plaque progression patterns. Most of the plaques show within the plaque length simultaneously more than one plaque progression feature (segments that do not change in plaque burden, segments that regress or progress). The number of observed plaque progression features was related to the plaque length.
Funding Acknowledgement
Type of funding source: None
Collapse
|
7
|
Aydogdu U, Coskun A, Yildiz R, Guzelbektes H, Sen I. Clinical importance of lipid profile in neonatal calves with sepsis. J HELL VET MED SOC 2019. [DOI: 10.12681/jhvms.15926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, it was aimed to determine of diagnostic importance blood lipid levels in neonatal calves with sepsis. The study was carried out on a total of 70 calves, 60 with sepsis and 10 healthy calves. The calves with sepsis were included in the study, according to clinical and hematological findings. After routine clinical examinations of all the calves, blood samples were taken from the V. jugularis for hematological, lipid profile and biochemical analyzes. There were significantly (P < 0.05) decreased in body temperature, increased in respiration rate and capillary refill time in the calves with sepsis, compared to control group calves. The levels of blood urea nitrogen, creatinine concentrations of calves with sepsis were significantly higher (P < 0.05), however, levels of total cholesterol, HDL, LDL and albumin concentrations were significantly lower (P < 0.05) than control group. In addition, blood triglyceride and VLDL concentrations of calves with sepsis were higher than control group, however there was no statistical difference.In conclusion, serum total cholesterol, HDL and LDL in neonatal calves with sepsis could be used in evaluation of the sepsis.
Collapse
|
8
|
González-Lao E, Corte Z, Simón M, Ricós C, Coskun A, Braga F, Aarsand AK, Carobene A, Bartlett WA, Boned B, Asland B, Díaz-Garzón J, Marqués-García F, Minchinela J, Perich C, Fernández-Calle P, Roraas T, Fernández-Fernández P, Jonker N, Sandberg S. Systematic review of the biological variation data for diabetes related analytes. Clin Chim Acta 2018; 488:61-67. [PMID: 30389455 DOI: 10.1016/j.cca.2018.10.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/19/2018] [Accepted: 10/24/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Objective interpretation of laboratory test results used to diagnose and monitor diabetes mellitus in part requires the application of biological variation data (BVD). The quality of published BVD has been questioned. The aim of this study was to quality assess publications reporting BVD for diabetes-related analytes using the Biological Variation Data Critical Appraisal Checklist (BIVAC); to assess whether published BVD are fit for purpose and whether the study design and population attributes influence BVD estimates and to undertake a meta-analysis of the BVD from BIVAC-assessed publications. METHODS Publications reporting data for glucose, HbA1c, adiponectin, C-peptide, fructosamine, insulin like growth factor 1 (IGF-1), insulin like growth factor binding protein 3 (IGFBP-3), insulin, lactate and pyruvate were identified using a systematic literature search. These publications were assessed using the BIVAC, receiving grades A, B, C or D, where A is of highest quality. A meta-analysis of the BVD from the assessed studies utilised weightings based upon BIVAC grades and the width of the data confidence intervals to generate global BVD estimates. RESULTS BIVAC assessment of 47 publications delivered 1 A, 3 B, 39C and 4 D gradings. Publications relating to adiponectin, C-peptide, IGF-1, IGFBP-3, lactate and pyruvate were all assessed as grade C. Meta-analysis enabled global BV estimates for all analytes except pyruvate, lactate and fructosamine. CONCLUSIONS This study delivers updated and evidence-based BV estimates for diabetes-related analytes. There remains a need for delivery of new high-quality BV studies for several clinically important analytes.
Collapse
|
9
|
Kirdar S, Aydin N, Tiryaki Y, Ertugrul B, Coskun A, Bilgen M. Dynamics of HCV epidemiology in Aydin province of Turkey and the associated factors. APMIS 2017; 126:109-113. [PMID: 29271117 DOI: 10.1111/apm.12790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/01/2017] [Indexed: 01/08/2023]
Abstract
This paper gives an update on the local distributions of HCV genotypes in Aydin province of Turkey, provides a comparison with the previous records, and discusses the potential causal reasons shaping the evolving genotype profiles. Patient files from 2011 to 2016 were retrospectively analyzed, and newly detected cases were documented. Out of 286 patients, male and female ratios were determined to remain nearly the same (~50%). Genotype 1 was still the most common (90.2%), followed by genotype 3 (5.9%), genotype 2 (2.1%), and genotype 4 (1.4%) in frequency. There were international patients (4.50%). One patient had genotyped 2+3 together. Genotypes 4 and 2+3 were detected for the first time, and the patients with genotype 4 were interestingly all male and also domestic individuals. However, these patients traveled or lived abroad in the past due to occupational reasons, thereby likely acquired the infection while abroad. HCV surveillance system is currently inadequate and some infected patients may go undetected in the province. Remapping the regional distribution of HCV genotypes from time-to-time is required for identifying the local dynamics and causes leading to it. This process enhances the clinical preparation and readiness for the better management of the disease.
Collapse
|
10
|
Eren SH, Aktas C, Korkmaz I, Karcioglu O, Coskun A, Guven FMK. Prognostic Value of Avr Lead and the Well-Known Risk Factors in Acute St-Segment Elevated Myocardial Infarction. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791101800504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Objective The present study was designed to analyse the effect of ST segment changes in aVR lead and the well-known risk factors in ST-segment elevated myocardial infarction (STEMI) patients. Materials and Methods A total of 250 patients who were admitted between 2009 and 2010 with STEMI and ≥1 mm ST-segment elevation in aVR lead were enrolled in the study. The patients were followed for life-threatening events like acute pulmonary oedema, atrial fibrillation, AV block, ventricular tachycardia, length of stay in hospital and death. Results Among the enrolled patients, 222 were discharged and 28 died. Pulmonary oedema and mortality rates were significantly higher in patients with ST-segment elevation in aVR lead (both p=0.001). Conclusions There is a correlation of ST-segment elevation in aVR lead with poor outcome in STEMI. Therefore aVR lead must be analysed as well as the other leads and well-known risk factors while it estimates the prognosis.
Collapse
|
11
|
Coskun A, Yavasoglu I, Meteoglu I, Unubol M, Yasar B, Borazan S, Omurlu IK, Yukselen V, Yasa MH. Vitamin D Receptor Level in Biopsy Specimen of Patients with Ulcerative Colitis: Results from a Center in Western Anatolia. J Natl Med Assoc 2017; 110:276-280. [PMID: 29778131 DOI: 10.1016/j.jnma.2017.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic, inflammatory bowel diseases characterized by uncontrolled inflammatory condition of the colon and rectal mucosa marked by recurrent periods of remission and exacerbation. Vitamin D receptor (VDR) is a member of the steroid receptor family that mediates the effects of vitamin D by regulating transcription of multiple cellular genes. We aimed to evaluate vitamin d receptor level in biopsy specimen of patients with UC in this study. METHODS VDR levels were retrospectively studied in colon biopsy specimens of UC patients. The Spearman's rho correlation analysis, The Kolmogorov-Smirnov, Mann Whitney U, and chi-square tests were used for statistical analysis. The p values below 0.05 were considered statistically significant. RESULTS Study included 112 UC patients (65 male and 47 female) and 30 controls (19 female and 11 male) who had normal results in biopsy examinations carried out due to various reasons. VDR levels of UC patients were statistically lower than control subjects, and was not associated with duration of the disease and place of involvement. CONCLUSIONS VDR is an important receptor in the pathogenesis of UC, and optimizing vitamin D levels could have a therapeutic role in UC.
Collapse
|
12
|
Yildiz R, Aydogdu U, Guzelbektes H, Coskun A, Sen I. Venous lactate, pH and partial pressure of carbon dioxide levels as prognostic indicators in 110 premature calves with respiratory distress syndrome. Vet Rec 2017; 180:611. [DOI: 10.1136/vr.103730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2017] [Indexed: 11/04/2022]
|
13
|
Ciraci S, Gumus K, Doganay S, Dundar MS, Kaya Ozcora GD, Gorkem SB, Per H, Coskun A. Diagnosis of intracranial calcification and hemorrhage in pediatric patients: Comparison of quantitative susceptibility mapping and phase images of susceptibility-weighted imaging. Diagn Interv Imaging 2017; 98:707-714. [PMID: 28571703 DOI: 10.1016/j.diii.2017.05.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/24/2017] [Accepted: 05/10/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE To prospectively compare the diagnostic capabilities of quantitative susceptibility mapping (QSM) with those of phase images of susceptibility-weighted imaging (SWI) in the detection and differentiation of intracranial calcification and hemorrhage in pediatric patients. METHOD Sixteen pediatric patients (9 girls, 7 boys) with a mean age of 9.4±6.3 (SD) years (range, 6 days-15 years) were included. Fifty-nine calcifications and 31 hemorrhages were detected. Sensitivities and specificities of the two magnetic resonance (MR) imaging techniques were calculated and compared using McNemar test. RESULTS QSM had a sensitivity of 84.7% and specificity of 100% for the detection of calcification. SWI phase images had a sensitivity of 49.1% and specificity of 100%. For the detection of hemorrhage, QSM had a sensitivity of 90.3% and a specificity of 98.3% whereas SWI phase images yielded a sensitivity of 64.5% and specificity of 96.6%. Overall, QSM displayed significantly better sensitivity than SWI phase images in identification of calcification and hemorrhage (P<0.05). CONCLUSION QSM is more reliable than SWI phase images in the identification of intracranial calcification and hemorrhage in pediatric patients using MR imaging.
Collapse
|
14
|
Aksungar FB, Sarıkaya M, Coskun A, Serteser M, Unsal I. Comparison of Intermittent Fasting Versus Caloric Restriction in Obese Subjects: A Two Year Follow-Up. J Nutr Health Aging 2017; 21:681-685. [PMID: 28537332 DOI: 10.1007/s12603-016-0786-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Caloric restriction (CR) is proven to be effective in increasing life span and it is well known that, nutritional habits, sleeping pattern and meal frequency have profound effects on human health. In Ramadan some Muslims fast during the day-light hours for a month, providing us a unique model of intermittent fasting (IF) in humans. In the present study, we have investigated the effects of IF versus CR on the same non-diabetic obese subjects who were followed for two years according to the growth hormone (GH)/Insulin like growth factor (IGF)-1 axis and insulin resistance. DESIGN Single-arm Interventional Human Study. PARTICIPANTS 23 female subjects (Body Mass Index (BMI) 29-39, aged between 28-42years). SETTING Follow-up is designed as 12 months of CR, after which there was a month of IF and 11 months of CR again, to be totally 24 months. Subjects' daily diets were aligned as low calorie diet during CR and during the IF period, the same subjects fasted for 15 hours in a day for a month and there was no daily calorie restriction. Nutritional pattern was changed as 1 meal in the evening and a late supper before sleeping and no eating and drinking during the day light hours in the IF model. Subjects made brisk walking twice a day during the whole follow-up including both CR and IF periods. BMI, Blood glucose, insulin, TSH, GH, HbA1c, IGF-1, Homa-IR and urinary acetoacetate levels were monitored once in three months and twice in the fasting month. MEASUREMENTS AND RESULTS While subjects lost 1250 ± 372g monthly during the CR, in the IF period, weight loss was decreased to 473 ± 146 g. BMI of all subjects decreased gradually and as the BMI decreased, glucose, HbA1c, insulin, Homa-IR and TSH levels were decreased. GH levels were at baseline at the beginning, increased in the first six months and stayed steady during the CR and IF period than began decreasing after the IF period, while IGF-I increased gradually during the CR period and beginning with the 7th day of IF period, it decreased and kept on decreasing till the end of the follow-up. Urinary acetoacetate levels were higher during the IF period suggesting a constant lipid catabolism. CONCLUSION Our results suggest that, CR affects metabolic parameters positively which will help especially pre-diabetic and insulin resistant patients without any pharmacological approach. In addition IF without calorie restriction can enhance health and cellular resistance to disease without losing weight and those effects may be attributed to different signalling pathways and circulating ketones during IF. Changes observed during IF are probably due to the changes in eating and sleeping pattern and thus changes in metabolic rhythm.
Collapse
|
15
|
Coskun A, Yavasoglu I, Yasa MH, Culhaci N, Yukselen V. Cetirizine-induced hepatotoxicity: case series and review of the literature. Gastroenterol Rep (Oxf) 2016; 6:228-230. [PMID: 27576471 PMCID: PMC6101603 DOI: 10.1093/gastro/gow025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 06/17/2016] [Indexed: 12/31/2022] Open
Abstract
Drug-induced liver damage is a frequently encountered clinical table caused by many drugs. Cetirizine is a widely preferred and prescribed antihistaminic agent for allergic disorders due to its non-sedative properties. In view of the literature, we present four cases of hepatotoxicity due to cetirizine use. We conclude that in patients with high levels of liver enzymes of unknown origin, cetirizine as well as other hepatotoxic drugs should be reconsidered.
Collapse
|
16
|
Coskun A, Malatyali E, Ertabaklar H, Yasar MB, Karaoglu AO, Ertug S. Blastocystis in ulcerative colitis patients: Genetic diversity and analysis of laboratory findings. ASIAN PAC J TROP MED 2016; 9:916-919. [PMID: 27633310 DOI: 10.1016/j.apjtm.2016.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 06/16/2016] [Accepted: 07/01/2016] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To determine Blastocystis frequency and subtypes (ST) in ulcerative colitis (UC) patients and analyse some laboratory findings between Blastocystis positive and negative cases. METHODS Faecal samples from 150 UC patients in Adnan Menderes University, Training and Research Hospital were examined by direct microscopy and cultivated in Jones medium. Blastocystis positive cultures were subjected to DNA isolation and subtypes were identified by sequencing of barcode region. A retrospective analysis was conducted on C reactive protein (CRP), leucocyte counts (WBC), neutrophil counts, and sedimentation rates. RESULTS The overall positive rate of Blastocystis was 8% (12 patients) and the most abundant subtype was ST3 (eight isolates, 66.7%), followed by ST1, ST2 and ST7. Laboratory findings between Blastocystis infected and non-infected UC patients were not significantly different. Blastocystis frequency was 3.8% among the patients in active stage, while it was 11.8% among the patients in remission stage. CONCLUSIONS The present study confirms previous findings that have indicated the predominance of Blastocystis ST3 in humans and contributes additional evidence that suggests the low colonisation of Blastocystis infection in ulcerative colitis patients during active stage.
Collapse
|
17
|
Kaya H, Coskun A, Beton O, Kurt R, Yildirimli MK, Gul I. A cost effective parameter for predicting the troponin elevation in patients with carbon monoxide poisoning: red cell distribution width. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:2891-8. [PMID: 27424991 DOI: pmid/27424991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Carbon monoxide (CO) poisoning is very common worldwide. Despite the fact that CO is known to have cardiotoxic effects, as it has non-specific symptoms; cardiotoxicity could easily be overlooked, especially when troponin is not measured. The present study aimed to evaluate the association between troponin I levels and red cell distribution width (RDW) levels, which can be measured rapidly, easily, and affordably in the Emergency Room (ER). PATIENTS AND METHODS This single-center observational study included a total of 504 consecutive patients, who presented to the ER due to CO poisoning between January 2011 and June 2015. The diagnosis of CO poisoning was made according to the medical history and carboxyhemoglobin (COHb) level of >5%. Elevated troponin test levels, which measure >0.04 ng/ml for our laboratory, were accepted as positive. RESULTS Patients (mean age 37±14) were classified into two groups: those who had positive troponin levels (38%) and those that did not. Patients with positive troponin, who were older, had longer CO exposure time and higher creatinine, COHb and RDW levels at the index admission following CO poisoning than patients with negative troponin. In a multivariate logistic regression model with forward stepwise method, age, COHb level, CO exposure time, and RDW (HR=1.681, 95% CI: 1.472-1.934, p<0.001) remained associated with an increased risk of troponin positivity following adjustment for the variables that were statistically significant in the univariate analysis and correlated with RDW. CONCLUSIONS In patients presenting to the ER with CO poisoning, RDW can be helpful for the risk stratification of troponin positivity.
Collapse
|
18
|
Aydin N, Bulbul R, Coskun A, Kirdar S, Oncu S, Kilinc Y. Is HLA-DRB1*13 allele a risk factor for prognosis of hepatitis C virus infection? Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
19
|
Dogan M, Gumus K, Koc G, Doganay S, Per H, Gorkem S, Canpolat M, Bayram A, Coskun A. Brain diffusion tensor imaging in children with tuberous sclerosis. Diagn Interv Imaging 2016; 97:171-6. [DOI: 10.1016/j.diii.2015.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/15/2015] [Accepted: 04/02/2015] [Indexed: 11/25/2022]
|
20
|
Coskun A, Yukselen V, Meteoglu I, Ergin F, Kadikoylu G, Yasa MH, Karaoglu AO. H. pylori positivity and various pathological, endoscopic and clinical features correlated with each other. J PAK MED ASSOC 2015; 65:1305-1309. [PMID: 26627512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the relationship between dyspepsia symptom scores and endoscopic appearances, and histopathological findings and helicobacter pylori positivity in patients having dyspepsia symptom. METHODS The study was conducted at the gastroenterology outpatient clinic of Adnan Menderes University, School of Medicine, Aydin, Turkey from April 2012 to July 2012 and comprised patients between 18-65 years of age who were admitted with dyspepsia. Glasgow dyspepsia severity scoring was done with questions posed orally to the patients. In histopathological evaluation of biopsy specimens according to Sydney criteria, chronic inflammation, activity, atrophy, intestinal metaplasia and helicobacter pylori parameters were used. Total number of eosinophils and number of mast cells were recorded. RESULTS Of the 60 patients with dyspepsia, 38(63.3%) were female and 22(36.7%) were male. The degree of activation and severity of inflammation increased significantly with increasing helicobacter pylori positivity(r=0.459'p<0.0001; r=0.475'p<0.0001). A significant relationship was found between inflammation, activation and the number of mast cells (p<0.05).There was no relationship between helicobacter pylori intensity and the eosinophil count (r=0.171; p=0.093). There was also a statistically significant correlation between severity of inflammation and activation and the number of eosinophils (r=0.313;p=0.002;r=0.245;p=0.016). CONCLUSIONS Mast cell density was seen to have a role in the inflammatory processes of helicobacter pylori infection.
Collapse
|
21
|
Sargin G, Senturk T, Borazan S, Coskun A. AB0700 Evaluation of Primary Biliary Cirrhosis and Anti-Mitochondrial Autoantibodies in Patients with Systemic Sclerosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
22
|
Gucer F, Kiran G, Canaz E, Kilinc M, Ekerbicer HC, Avci F, Kiran H, Coskun A, Arikan DC. Serum human epididymis protein 4 can be a useful tumor marker in the differential diagnosis of adnexal masses during pregnancy: a pilot study. EUR J GYNAECOL ONCOL 2015; 36:406-409. [PMID: 26390692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE The purpose of this study was to evaluate serum concentrations of human epididymis protein 4 (HE4) and cancer antigen 125 (CA 125) in healthy women and their pregnant counterparts to determine the influence of pregnancy on these biomarkers. MATERIALS AND METHODS Serum concentrations of CA 125 and HE4 were measured in 27 healthy non-pregnant women and 26 healthy pregnant women in the first and second trimesters. RESULTS Higher concentration of CA 125 was found in pregnants than in non-pregnant women (p = 0.002). There was no difference in CA 125 concentrations between first and second trimesters (p = 0.13). Serum HE4 concentration was not different in pregnant group compared to non-pregnant women (p = 0.510). Likewise, no difference was found in HE4 levels between the trimesters (p = 0.485). There was a positive correlation between increasing parity and CA 125 (p = 0.023), but not HE4 (p = 1.0). CONCLUSION HE4 serum biomarker is unaffected by pregnancy status and may be useful for evaluation of doubtful pelvic masses in pregnancy. Contrarily, increased serum levels of CA 125 could yield increased number of false-positive results.
Collapse
|
23
|
Coskun A, Arikan DC, Coban YK, Sayar H, Kilinc M, Ozbag D. The effect of ovariectomy on the skin flap viability and myeloperoxidase levels. ACTA ACUST UNITED AC 2014; 115:766-70. [PMID: 25520225 DOI: 10.4149/bll_2014_148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVES Estrogen could affect the rate and quality of wound healing in skin. We aimed to investigate the effects of ovariectomy on skin flap viability and myeloperoxidase (MPO) levels in a rat model. BACKGROUND Estrogens have many important beneficial and protective roles in skin that they improve collagen content and quality, maintain skin thickness and enhance vascularization. It has been shown that estrogen supplementation accelerates cutaneous wound healing in elderly patients. METHODS Forty-eight cycling female Wistar albino rats were randomly divided into three groups (n = 16); ovariectomy (Group 1), sham (Group 2), and control (Group 3). Rats were subjected to bilateral ovariectomy in the Group 1, and only laparotomy in the Group 2. Twenty-one days later in the Group 1 and 2, a dorsal caudally based skin flap elevation was done. In the Group 3, the rats had a dorsal skin flap without any surgical intervention. Ten days later, the flaps were harvested for histopathologic examination and biochemical analyses. RESULTS The rats in the Group 1 had significantly larger necrotic area and lower flap viability than in the Group 2 and 3 (p<0.05). Histopathologic examination showed that necrotic flap regions contained muscle necrosis with an abundant neutrophil infiltration, and severe edema in the Group 1. The MPO activity in the distal of skin flaps was significantly higher in the Group 1 compared to the Group 2 and 3 (p<0.05). CONCLUSION This study shows that ovariectomy has deleterious effects on skin flap viability in a rat model (Tab. 1, Fig. 6, Ref. 44).
Collapse
|
24
|
Coskun A, Unubol M, Yukselen O, Yukselen V, Aydin A, Şen S, Onder Karaoglu A. Esophageal Leiomyoma in Patients with Megaloblastic Anemia. Euroasian J Hepatogastroenterol 2014; 4:98-100. [PMID: 29699356 PMCID: PMC5913904 DOI: 10.5005/jp-journals-10018-1110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 06/05/2014] [Indexed: 12/01/2022] Open
Abstract
Esophageal leiomyoma is the most common benign intramural tumor of esophagus. Although its incidence is not exactly known, it is very rare (0.006%-0.1% in autopsy series). It is generally asymptomatic and detected incidentally. Here, we present a rare case report describing coexistence of megaloblastic anemia and esophageal leiomyoma. How to cite this article: Coskun A, Unubol M, Yukselen O, Yukselen V, Aydin A, Şen S, Karaoglu AO. Esophageal Leiomyoma in Patients with Megaloblastic Anemia. Euroasian J Hepato-Gastroenterol 2014;4(2):98-100.
Collapse
|
25
|
Yavasoglu I, Coskun A. Myelodysplastic syndrome and aortic valve replacement: additions. J PAK MED ASSOC 2014; 64:605. [PMID: 25272560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
|