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Cankurtaran RE, Ersoy O. Adverse Events in Endoscopic Retrograde Cholangiopancreticography for Choledocholithiasis: A Holistic Perspective. Cureus 2024; 16:e53375. [PMID: 38435169 PMCID: PMC10908872 DOI: 10.7759/cureus.53375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Background and aims In this study, we aimed to investigate the frequency of adverse events (AEs) in patients undergoing endoscopic retrograde cholangiopancreticography (ERCP) for choledocholithiasis and the independent risk factors that may cause these conditions. We planned to evaluate all AEs including cardiopulmonary complications and the risk factors that may affect them holistically. Methods This study was designed as a retrospective cohort study conducted at a single tertiary center's gastroenterology clinic. The study included patients with naive papillae and undergoing ERCP for choledocholithiasis between May 2019 and June 2022. Risk factors that may lead to AEs were analyzed in terms of both patient-related factors and procedure-related factors. Patients with and without AEs after ERCP were compared. Results This study included 812 patients who underwent ERCP for choledocholithiasis. AE occurred in 149 (18.3%) of patients, and the most common complication was pancreatitis (n=112, 13.8%). In regression analysis, of the patient- and procedure-related factors, only difficult cannulation was a significant independent risk factor for AEs (odds ratio=3.85, 95% CI: 1.102-13.498, p=0.035). Conclusion This study showed that, of patient- and procedure-related factors, only difficult cannulation is an independent risk factor for ERCP-related AEs.
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Affiliation(s)
- Rasim Eren Cankurtaran
- Department of Gastroenterology, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, TUR
| | - Osman Ersoy
- Department of Gastroenterology, School of Medicine, Ankara Yildirim Beyazit University, Ankara, TUR
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Akyüz F, Ersoy O, Erzin Y, Çavuş B, Bakkaloğlu O, Akın E, Kav T, Akyüz Ü, Pata C. Small Bowel Video Capsule Endoscopy Guidance in Practice: Expert Opinion Report. Turk J Gastroenterol 2023; 34:2-19. [PMID: 36946199 DOI: 10.5152/tjg.2023.21961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
Abstract
Capsule endoscopy, in clinical use since the 2000s, has disrupted the diagnosis of various small bowel diseases, especially obscuregastrointestinal bleeding. An overview of information on indications, contraindications, patient management, and patient preparationfor capsule endoscopy, which allows the evaluation of the entire gastrointestinal tract, will be helpful for both referrers and capsuleendoscopy. This review critically considers current evidence on the optimal clinical use of capsule endoscopy and addresses areas in the "gray zone."
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Affiliation(s)
- Filiz Akyüz
- Department of Gastroenterology, İstanbul University İstanbul Faculty of Medicine, İstanbul, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University Faculty of Medicine, Ankara Atatürk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Yusuf Erzin
- Department of Gastroenterology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Bilger Çavuş
- Department of Gastroenterology, İstanbul University İstanbul Faculty of Medicine, İstanbul, Turkey
| | - Oğuz Bakkaloğlu
- Department of Gastroenterology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Ebru Akın
- Department of Gastroenterology, Yıldırım Beyazıt University Faculty of Medicine, Ankara Atatürk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Taylan Kav
- Department of Gastroenterology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ümit Akyüz
- Department of Gastroenterology, Health Sciences University Faculty of Medicine, İstanbul, Turkey
| | - Cengiz Pata
- Department of Gastroenterology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
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Asfuroğlu Kalkan E, Kalkan Ç, Kaçar S, Barutçu S, Yüksel M, Güçbey Türker Ö, Göre B, Canlı T, Asfuroğlu U, Barutçu Asfuroğlu B, Hamamcı M, Kılıç V, Köseoğlu T, Özaslan E, Ödemiş B, Kılıç M, Yüksel İ, Ersoy O, Altıparmak E, Ateş İ, Soykan İ. Similarities and Differences Between Gerontal and Young Patients with Acute Pancreatitis: Evaluation of Clinical Characteristics and Outcomes. Turk J Gastroenterol 2022; 33:874-884. [PMID: 36205509 PMCID: PMC9623137 DOI: 10.5152/tjg.2022.22227] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Background: Acute pancreatitis is an abrupt inflammatory disease of the exocrine pancreas and it can occur in different severities. It is becoming more common and more mortal in the gerontal population. The aim of our study was to explore the similarities and differences between young and gerontal patients with acute pancreatitis, with a special emphasis on patients over 80 years of age. Methods: Medical records of patients (n = 1150) with acute pancreatitis were analyzed retrospectively. Several scoring systems including Bedside index for severity in acute pancreatitis, Ranson’s score, Harmless acute pancreatitis score, Acute Physiology and Chronic Health Evaluation, Balthazar Grade, Glasgow score, and Japanese severity score were applied at admission. Patients were divided into 3 groups; group I, young group (n = 706), if they were aged <65 years; group II, older group (n = 338), if they were aged ≥65 years to <80 years; group III, octogenarian group (n = 106), if they were aged ≥ 0 years. Results: In total, 1150 patients with acute pancreatitis were analyzed. Octogenarian group (n = 42, 39.6%) showed a more severe acute pancreatitis compared to patients in group I (n = 15, 2.1%) and II (n = 50, 14.8%, P < .001). Complications were more common in patients in group III (P < .001). Mortality rate was higher in patients in group III (n = 53, 50%) compared to group I (n = 8, 1.1%) and group II (n = 53, 15.7%) (P < .001). Conclusion: Gerontal patients with acute pancreatitis tend to have more severe disease and systemic and local complications. Mortality rates were higher in older patients compared to younger patients.
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Affiliation(s)
- Emra Asfuroğlu Kalkan
- Department of Internal Medicine, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Çağdaş Kalkan
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Sabite Kaçar
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Sezgin Barutçu
- Department of Gastroenterology, Gaziantep University Hospital, Gaziantep, Turkey
| | - Mahmut Yüksel
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Özge Güçbey Türker
- Department of Internal Medicine, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Burak Göre
- Department of Internal Medicine, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Tolga Canlı
- Department of Internal Medicine, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Umut Asfuroğlu
- Department of Radiology, Ministry of Health, Abdulkadir Yüksel Hospital, Gaziantep, Turkey
| | | | - Mevlüt Hamamcı
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Vedat Kılıç
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Tankut Köseoğlu
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Ersan Özaslan
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Bülent Ödemiş
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Mesut Kılıç
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - İlhami Yüksel
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - Emin Altıparmak
- Department of Gastroenterology, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - İhsan Ateş
- Department of Internal Medicine, Ankara City Hospital, Ministry of Health, Ankara, Turkey
| | - İrfan Soykan
- Department of Gastroenterology, Ankara University Faculty of Medicine, İbni-Sina Hospital, Ankara, Turkey,Corresponding author: İrfan Soykan, e-mail:
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Ustuner GY, Akin FE, Saglam S, Gok G, Erel O, Ersoy O. An Evaluation of Thiol/Disulphide Homeostasis and HDL Values in Patients with Cholelithiasis: A Prospective Case-control Study. J Coll Physicians Surg Pak 2022; 32:424-429. [PMID: 35330511 DOI: 10.29271/jcpsp.2022.04.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To determine the changes in thiol/disulphide homeostasis in patients determined with asymptomatic cholelithiasis and to investigate any potential correlation between these thiol-disulphide parameters and HDL cholesterol. STUDY DESIGN A descriptive, comparative study. PLACE AND DURATION OF STUDY Ankara City Hospital between 15 September and 31 December 2019. METHODOLOGY This study included 42 patients aged 18-70 years, who presented at the Gastroenterology Clinic and were diagnosed with cholelithiasis on ultrasound examination. A control group was formed of 51 healthy volunteers aged 18-70 years. Thiol/disulphide homeostasis and HDL cholesterol was noted and compared between the groups. RESULTS The mean age was 44.16 ± 13.35 years in cholelithiasis patient group and 31.88±13.27 years in the control group. The triglyceride, VLDL, total cholesterol/HDL, and non-HDL levels were significantly higher and HDL level was significantly low in the patient group (both p <0.05). Regarding thiol-disulphide balance, native thiol, total thiol, and albumin values were found to be statistically significantly low in the patient group (p <0.05), and the IMA, index-1, index-2, and index-3 values were significantly high (p <0.05). CONCLUSION The oxidant/antioxidant balance shifted towards oxidation in patients with asymptomatic gallstones. The non-HDL value was increased. There was a positive correlation between the thiol-disulphide parameters and the non-HDL value. The increasing non-HDL amount could be effective in the pathogenesis of gallstone disease by disrupting the oxidative balance. KEY WORDS Cholelithiasis, Thiol-disulphide homeostasis, Lipid profile, Non-HDL, HDL, Oxidative stress.
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Affiliation(s)
- Guniz Yanik Ustuner
- Department of Internal Medicine, Bursa Cuneyt Yildiz State Hospital, Bursa, Turkey
| | | | - Suadiye Saglam
- Department of Gastroenterology, Ankara Yildırım Beyazit University, Ankara City Hospital, Ankara, Turkey
| | - Gamze Gok
- Department of Gastroenterology, Ankara Yildırım Beyazit University, Ankara City Hospital, Ankara, Turkey
| | - Ozcan Erel
- Department of Gastroenterology, Ankara Yildırım Beyazit University, Ankara City Hospital, Ankara, Turkey
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Gemcioglu E, Yılmaz Cakmak N, Baser S, Kocaoz S, Ersoy O. Factors affecting the use of herbal products in patients with Irritable Bowel Syndrome and their results: case-control study. BMC Gastroenterol 2022; 22:43. [PMID: 35120448 PMCID: PMC8817528 DOI: 10.1186/s12876-022-02125-z] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 01/21/2022] [Indexed: 12/02/2022] Open
Abstract
Background Irritable bowel syndrome (IBS) is a functional bowel disease that is characterized by abdominal pain, discomfort, and changes in the frequency and form of stool without any organic pathology. In this study, the factors that affect the herbal treatment choices of IBS patients and their results were investigated. Methods Included in the study were 248 IBS patients who were over the age of 18. A questionnaire that comprised 25 questions was applied to the participants. Survey questions were asked to the participants regarding their age, place of birth, gender, educational status, demographic details, social standing, socioeconomic status and job, place of residence, and marital status. In addition, The participants were asked about which IBS symptoms they had, from whom they had received the recommendation for use of herbal products, whether the media had an effect on their selection of herbal products, and whether they had benefited from herbal products. Results It was observed that 41.1% of the patients with IBS who participated in the study used herbal medicine, 9.8% of whom used them regularly. It was found that the IBS patients participating in the study made their decision to use herbal products mostly based on the recommendations that they were given by acquaintances (57%) and the media (34%). When the patients were evaluated according to their gender, IBS was found to be more common in unemployed women who had a low level of education, while it was more common in working men (p = 0.015, P < 0.001, respectively). The IBS patients who were single used more herbal products that those who were married (P = 0.036). While the use of herbal herbs and oils was predominant in patients whose recommendation content comprised the media/internet and acquaintances, the herbal treatment content recommended by healthcare professionals consisted of traditional treatments and mixtures (P = 0.012). It was determined that a higher percentage of those who used herbal treatments lived in city centers when compared to those who did not (P < 0.001). In addition, it was determined that patients with constipation used herbal products more than those without (P < 0.001). Among the IBS patients, those who had diarrhea and those who were receiving medical treatment preferred to use significantly less herbal products (P = 0.007 and P = 0.041, respectively). It was found that the patients who visited the Gastroenterology Outpatient Clinic mostly used herbal therapy, while those who visited a family doctor used herbal therapy the least (P = 0.029 and P < 0.001, respectively). Conclusion The IBS patients revealed whose recommendations they followed when purchasing herbal products, which of the products they preferred, and how useful/beneficial they felt that these products were. In this regard, the addition of training curricula related to herbal treatment for professional healthcare workers will further raise awareness on this topic.
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Affiliation(s)
- Emin Gemcioglu
- Department of Internal Medicine, Ankara City Hospital, Ankara, 06100, Turkey.
| | - Nuray Yılmaz Cakmak
- Department of Internal Medicine, Ankara City Hospital, Ankara, 06100, Turkey
| | - Salih Baser
- Department of Internal Medicine, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Servet Kocaoz
- Department of General Surgery, Ankara City Hospital, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
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Karabuga B, Gemcioglu E, Konca Karabuga E, Baser S, Ersoy O. Comparison of the predictive values of CRP, CRP/albumin, RDW, neutrophil/lymphocyte, and platelet/lymphocyte levels in
determining the severity of acute pancreatitis in patients with acute pancreatitis according to the BISAP score. BRATISL MED J 2022; 123:129-135. [DOI: 10.4149/bll_2022_020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gemcioglu E, Baser S, Yilmaz Cakmak N, Erel Ö, Akman BT, Ahmadova P, Ersoy O. Assessing Oxidative Stress by Thiol/Disulfide Homeostasis Among Vitamin D-Deficient Patients. Cureus 2021; 13:e20400. [PMID: 35047246 PMCID: PMC8755970 DOI: 10.7759/cureus.20400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2021] [Indexed: 12/15/2022] Open
Abstract
Objective: Thiol/disulfide (T/DS) homeostasis represents a promising new approach to evaluate oxidative stress. Therefore, we aimed to examine T/DS homeostasis in vitamin D (VitD)-deficient patients. Methods: We enrolled 154 patients with VitD deficiency and 154 healthy control subjects in the study. For both groups, native thiol, total thiol, and disulfide values were measured. Additionally, considering the obtained 25-hydroxycholecalciferol [25(OH)D] levels, the patient group was further divided into two subgroups (Group 1: <10 ng/mL, Group 2: 10-20 ng/mL), which were compared in more depth according to the specified parameters. Results: Values of native thiol, total thiol, and disulfide measured in the combination of Groups 1 and 2, comprising individuals with VitD deficiency, proved to be higher in comparison to the control group with statistical significance (p=0.007, p=0.028, and p<0.001, respectively). When subgroups were considered according to VitD classifications, native thiol and total thiol were again higher in Group 1 in comparison to the values obtained for control subjects (p=0.022; p<0.001). While the total thiol level of Group 2 was higher than that of controls (p<0.001), no difference with statistical significance was obtained in the comparison of disulfide levels among the indviduals of Group 1, Group 2, and the controls (p=0.081). Conclusion: In this study, among patients with VitD deficiency, we have confirmed that values of native thiol and total thiol were increased, while the T/DS balance was found to have shifted in favor of the thiol level.
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Affiliation(s)
- Emin Gemcioglu
- Department of Internal Medicine, Ankara City Hospital, Ankara, TUR
| | - Salih Baser
- Department of Internal Medicine, Ankara Yıldırım Beyazıt University, Faculty of Medicine, Ankara, TUR
| | | | - Özcan Erel
- Department of Biochemistry, Ankara Yıldırım Beyazit University, Faculty of Medicine, Ankara, TUR
| | - Büsra Tugce Akman
- Department of Hematology, Baskent University Faculty of Medicine, Ankara, TUR
| | - Parvana Ahmadova
- Department of Internal Medicine, Lokman Hekim Hospital, Ankara, TUR
| | - Osman Ersoy
- Department of Gastroenterology and Hepatology, Ankara Yıldırım Beyazıt University, Faculty of Medicine, Ankara, TUR
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Ersoy O, Sekmen U, Balmuk AB, Girit A. Myxoma complicated acute intestinal obstruction: A rare case with diagnostic challenges. Niger J Clin Pract 2021; 24:292-294. [PMID: 33605922 DOI: 10.4103/njcp.njcp_676_19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Myxomas are slowly growing mesenchymal tumors and are considered as extremely rare benign tumors of small intestine. This is the case of a young woman presenting with acute bowel obstruction due to ileo-ileal intussusception caused by an intraluminal 4- cm solitary nodule, found to be a myxoma upon pathologic examination, after resection by surgery.
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Affiliation(s)
- O Ersoy
- Department of Gastroenterology, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - U Sekmen
- School of Health Sciences, Acibadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - A B Balmuk
- School of Medicine-Medical School Student, Acibadem Mehmet Ali Aydınlar University, Istanbul, Turkey
| | - A Girit
- School of Medicine-Medical School Student, Acibadem Mehmet Ali Aydınlar University, Istanbul, Turkey
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Bayrak ED, Erten S, Kucuksahin O, Ersoy O. Comparison of Clinical and Demographic Features of FMF with
Sacroiliitis Patients with FMF and Axial Spondyloarthritis Patients. AKTUEL RHEUMATOL 2020. [DOI: 10.1055/a-1252-2190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Objectives Familial Mediterranean fever (FMF) is the most common
autoinflammatory disease, characterised by recurrent fever and serositis
attacks lasting 1–3 days. Musculoskeletal involvement is the second
most common manifestation in FMF patients. Sacroiliitis is another
musculoskeletal involvement; as there is no spinal involvement, this is
called FMF with sacroiliitis. This study was designed to investigate the
clinical, demographic and genetic features of FMF in sacroiliitis patients
and to compare them with axial SpA and FMF patients.
Materials and Methods Forty-two FMF with sacroiliitis patients, 100
axial SpA patients and 100 FMF patients were recruited, and their
demographic characteristics were recorded. Evidence of sacroiliitis was
confirmed by sacroiliac joint MRI, and patients were examined for arthritis
and enthesitis. MEFV gene mutations, HLA B27 positivity and ESR and CRP
results were compared.
Results In the FMF with sacroiliitis group, the M694V mutation was
detected in 59.5% of patients. FMF with sacroiliitis patients were
largely (83.3%) negative for HLA B27. The frequency of enthesitis
was similar between FMF with sacroiliitis and axial SpA, and the frequency
of arthritis was higher in axial SpA patients. Inflammatory markers (ESR and
CRP) were statistically higher in FMF with sacroiliitis patients compared
with axial SpA and FMF patients.
Conclusion When all three groups were compared, the M694V mutation
was more common, HLA B27 was largely negative and inflammatory markers were
higher in the FMF with sacroiliitis group. FMF should be included in the
differential diagnosis of sacroiliitis for managing treatment correctly and
preventing complications.
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Affiliation(s)
- Esra Dilşat Bayrak
- Rheumatology, Izmir Bozyaka Egitim ve Arastirma Hastanesi,
İzmir Bozyaka Eah, İzmir
| | - Sukran Erten
- Rheumatology, Ankara, Yildirim Beyazit University Faculty of
Medicine
| | - Orhan Kucuksahin
- Rheumatology, Ankara, Ankara Ataturk Egitim ve Arastirma
Hastanesi
| | - Osman Ersoy
- Gastroenterology, Ankara, Yildirim Beyazit University Faculty of
Medicine
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Köseoğlu H, Solakoğlu T, Başaran M, Özer Sarı S, Tahtacı M, Yaman S, Selvi E, Ersoy O. Risk factors for post-ERCP pancreatitis: it depends on the ERCP indication. Acta Gastroenterol Belg 2020; 83:598-602. [PMID: 33321017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND AIMS Endoscopic retrograde cholangiopancreatography (ERCP) is an invasive modality, and has a high risk of causing post-ERCP pancreatitis (PEP). Risk factors of PEP have been investigated and conflicting results are present for most risk factors. The aim of this study was to evaluate the risk factors for PEP and to determine whether the risk factors differ due to the ERCP indication. PATIENTS AND METHODS A retrospective study was conducted which included 666 patients with 968 ERCP procedures. Some risk factors were evaluated for PEP, and they were also evaluated separately for patients with bile duct stones and patients who underwent ERCP for other reasons than bile duct stones. RESULTS In patients with bile duct stones detected on ERCP ; female gender, lower diameter of the common bile duct, placing a biliary plastic stent and not having a cholecystectomy history were risk factors for PEP, whereas in patients without bile duct stones the only risk factor for PEP was not having a prior endoscopic sphincterotomy. CONCLUSIONS Our study revealed that PEP risk factors depend on the indication of ERCP. To the best of our knowledge our study is the first study defining cholecystectomy as a protective factor for PEP in patients with bile duct stones and endoscopic sphincterotomy history as a protective factor for PEP in patients without bile duct stones. Our study also showed that female gender, lower diameter of the common bile duct and placing a plastic biliary stent were risk factors for PEP in patients with bile duct stones.
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Affiliation(s)
- H Köseoğlu
- Department of Gastroenterology, Ankara Atatürk Education and Research Hospital, Ankara, Turkey
| | - T Solakoğlu
- Department of Gastroenterology, Ankara Atatürk Education and Research Hospital, Ankara, Turkey
| | - M Başaran
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - S Özer Sarı
- Department of Gastroenterology, Ankara Atatürk Education and Research Hospital, Ankara, Turkey
| | - M Tahtacı
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - S Yaman
- Department of Internal Medicine, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - E Selvi
- Department of Gastroenterology, Ankara Atatürk Education and Research Hospital, Ankara, Turkey
| | - O Ersoy
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
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11
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Yaman S, Ozdemir D, Akman BT, Cakir B, Ersoy O. Awareness, treatment rates, and compliance to treatment in patients with serum LDL cholesterol higher than 250 mg/dL, and possible, probable, or definite familial hypercholesterolemia. Postgrad Med 2020; 133:146-153. [PMID: 32744105 DOI: 10.1080/00325481.2020.1805212] [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] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE Familial hypercholesterolemia (FH) is a genetic disease characterized by increased levels of low-density lipoprotein cholesterol (LDL-C). It is underdiagnosed and undertreated despite relatively high prevalance and significant association with increased mortality. We aimed to determine treatment status and compliance in patients with LDL-C ≥ 250 mg/dL and FH. DESIGN Patients older than 18 years old and have a serum LDL-C ≥ 250 mg/dL between January 2010 to December 2016 were identified from the hospital database. A phone survey was performed. Demographic features, smoking status, alcohol use, exercise, cardiovascular disease (CVD), use of medication for dyslipidemia, and CVD and high cholesterol levels in the family were questioned. Dutch Lipid Clinical Network Criteria was used to classify patients. The study was registered to Clinicaltrials.gov in July 2020 (NCT04494464). RESULTS 1365 patients with a LDL-C ≥ 250 mg/dL were identified. Patients that could not be reached and who refused to interview were excluded and the data of 367 patients were analyzed. There were 248 (67.6%) female and 119 (32.4%) male patients and mean age was 50.52 ± 11.66. LDL-C was ≥330 mg/dL in 50 (13.6%) and 250-329 mg/dL in 317 (86.4%) patients. Forty (10.9%) patients were classified as definite, 181 (49.3%) as probable and 146 (39.8%) as possible FH. 213 (58.0%) patients were not receiving lipid-lowering treatment, and 162 (76.1%) stated that medication was never recommended previously, 30 (14.1%) had stopped medication him/herself and 21 (9.8%) had stopped medication with the advice of the physician. Among patients with definite/probable FH, 84 (38.0%) had CVD and the rate of lipid-lowering drug use in these patients was 58.3%. CONCLUSION A significant proportion of patients with LDL-C ≥ 250 mg/dL were not taking lipid-lowering drugs. Similar with many other studies, diagnosis, and treatment rates of FH patients were very low in our study. Further national studies are required to increase awareness of the disease in both physicians and patients.
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Affiliation(s)
- Samet Yaman
- Department of Internal Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Didem Ozdemir
- Department of Endocrinology and Metabolism Diseases, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Busra Tugce Akman
- Department of Internal Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Bekir Cakir
- Department of Endocrinology and Metabolism Diseases, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Ankara Yildirim Beyazit University, Ankara, Turkey
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12
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Özer Sarı S, Köseoğlu H, Akar M, Solakoğlu T, Ersoy O. Nötrofil / lenfosit oranı kronik hepatit B hastalarında karaciğer fibrozisini saptamada kullanılabilir mi? Ege Tıp Dergisi 2019. [DOI: 10.19161/etd.504466] [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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Tahtacı M, Algın O, Karakan T, Yürekli ÖT, Alışık M, Köseoğlu H, Metin MR, Bolat AD, Erel Ö, Ersoy O. Can pancreatic steatosis affect exocrine functions of pancreas? Turk J Gastroenterol 2019; 29:588-594. [PMID: 30260782 DOI: 10.5152/tjg.2018.17696] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIMS Pancreatic steatosis (PS) is a generally used term to define accumulation of fat in the pancreas. In theory PS may be able to affect the exocrine function of pancreas. In this study we aimed to determine the effect of PS on exocrine pancreas function. MATERIALS AND METHODS Forty-three patients with PS determined by 3 tesla magnetic resonance imaging (MRI) and 48 patients without PS were included in this study. Patients with PS were classified as group 1 and control patients were classified as group 2. Fecal elastase-1 levels were determined. Fecal elastase-1 levels <200 μg/g were defined as exocrine pancreatic insufficiency (EPI). Patients with PS were further grouped according to severity and anatomic distribution of steatosis based on findings of 3 tesla MRI. RESULTS Fecal elastase-1 levels was significantly lower in group 1 compared to group 2 (319.76±45.7 vs 549.31±69.4, respectively, p=0.003). Proportion of patients with EPI was significantly higher in group 1 than group 2 (35.5% vs 12% p=0.042). There were no significant differences in terms of severity or the anatomic distribution of PS in patients with PS with EPI based on MRI (p=0.052, p=0.198, p=0.405) Conclusion: Current study demonstrates that PS can cause EPI.
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Affiliation(s)
- Mustafa Tahtacı
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Oktay Algın
- Department of Radiology, Atatürk Training and Research Hospital, Ankara, Turkey
| | - Tarkan Karakan
- Department of Gastroenterology, Gazi University School of Medicine, Ankara, Turkey
| | - Öykü Tayfur Yürekli
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Murat Alışık
- Department of Biochemistry, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Hüseyin Köseoğlu
- Department of Gastroenterology, Atatürk Training and Research Hospital, Ankara, Turkey
| | - Melike Ruşen Metin
- Department of Radiology, Atatürk Training and Research Hospital, Ankara, Turkey
| | - Aylin Demirezer Bolat
- Department of Gastroenterology, Atatürk Training and Research Hospital, Ankara, Turkey
| | - Özcan Erel
- Department of Biochemistry, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
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14
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Köseoğlu H, Alışık M, Başaran M, Tayfur Yürekli Ö, Solakoğlu T, Tahtacı M, Ersoy O, Erel Ö. Dynamic thiol/disulphide homeostasis in acute pancreatitis. Turk J Gastroenterol 2018; 29:348-353. [PMID: 29755020 DOI: 10.5152/tjg.2018.17499] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND/AIMS The dynamic thiol/disulfide homeostasis plays pivotal roles in many physiological mechanisms in an organism. We aimed to investigate whether dynamic thiol/disulfide homeostasis changes among patients with acute pancreatitis. MATERIALS AND METHODS This prospective trial contained 45 patients with acute pancreatitis and 45 sex-and age-matched healthy volunteers as control group. Thiol/disulfide homeostasis parameters were measured by a novel and automated assay, and detected results were compared between the two groups. RESULTS Disulfide/total thiol percent ratio and disulfide/native thiol percent ratios were significantly higher in acute pancreatitis group; besides the native thiol, total thiol levels and native thiol/total thiol percent ratios were significantly lower (for all p < 0.001). CONCLUSION The thiol/disulfide homeostasis is impaired in acute pancreatitis with a shift toward the oxidative status, and this deficiency might be a pathogenic factor in acute pancreatitis. The correction of this thiol/disulfide imbalance may be a new target in the management of acute pancreatitis.
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Affiliation(s)
- Hüseyin Köseoğlu
- Department of Gastroenterology, Ankara Atatürk Training and Research Hospital, Ankara, Turkey
| | - Murat Alışık
- Department of Clinical Biochemistry, Ankara Atatürk Training and Research Hospital, Ankara, Turkey
| | - Murat Başaran
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Öykü Tayfur Yürekli
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Tevfik Solakoğlu
- Department of Gastroenterology, Çorlu State Hospital, Tekirdağ, Turkey
| | - Mustafa Tahtacı
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Özcan Erel
- Department of Clinical Biochemistry, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
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Karatutlu A, Boi FS, Wilson RM, Ersoy O, Ortac B, Sapelkin A. A Bean-Like Formation of Germanium Nanoparticles Inside CNTs by the Subsequent Operation of Colloidal Synthesis and Catalytic Chemical Vapor Deposition Methods. Crystal Research and Technology 2018. [DOI: 10.1002/crat.201800123] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ali Karatutlu
- Institute of Materials Science and Nanotechnology and UNAM-National Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
| | - Filippo S. Boi
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 P. R. China
| | - Rory M. Wilson
- School of Engineering and Material Science; Queen Mary University of London; London E1 4NS UK
| | - Osman Ersoy
- Centre for Condensed Matter and Materials Physics; School of Physics and Astronomy; Queen Mary University of London; London E1 4NS UK
| | - Bulend Ortac
- Institute of Materials Science and Nanotechnology and UNAM-National Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
| | - Andrei Sapelkin
- Centre for Condensed Matter and Materials Physics; School of Physics and Astronomy; Queen Mary University of London; London E1 4NS UK
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Tahtacı M, Ersoy R, Ersoy O. The Relation of Perianal Acrochordons are with Insulin Resistance. Ankara Medical Journal 2018. [DOI: 10.17098/amj.461659] [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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17
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Neselioglu S, Keske PB, Senat AA, Yurekli OT, Erdogan S, Alisik M, Ergin MS, Koseoglu H, Ersoy O, Erel O. The relationship between severity of ulcerative colitis and thiol-disulphide homeostasis. ACTA ACUST UNITED AC 2018; 119:498-502. [PMID: 30160158 DOI: 10.4149/bll_2018_091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVES The aim of the study was to determine dynamic thiol-disulphide homeostasis in patients with ulcerative colitis, compare it with those of healthy control and to investigate the relationship between the severity of the disease and homeostasisMETHODS: A total of 78 patients and 58 healthy subjects were included in the study. Serum native thiol, total thiol and disulphide amounts were measured by using a novel automated method. Obtained results were compared and relationships were determined by correlation analysis. RESULTS Serum native thiol, total thiol, disulphide amounts and disulphide/native thiol percent ratio (index) were significantly lower (p = 0.003 for index ratio and p < 0.001 for other parameters) in patients with ulcerative colitis than in healthy controls. Native thiol, total thiol and disulphide amounts were significantly higher (p < 0.001) in patients with ulcerative colitis in remission than in patients with active ulcerative colitis and near to those of healthy control. There were significant negative correlations between the severity of the disease and thiol-disulphide homeostasis parameters (r = -0.55, p < 0.001 for native thiol; r = -0.64, p < 0.0001 for total thiol; r = -0.65, p < 0.001 for disulphide and r = -0.33, p = 0.011 for index). CONCLUSION The thiol-disulphide homeostasis was weakened in ulcerative colitis. Strong correlations between the activity of the disease and thiol-disulfide homeostasis indicate that homeostasis may play a role in the pathogenesis of the disease (Tab. 3, Fig. 3, Ref. 30).
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Affiliation(s)
- Mustafa Akar
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Huseyin Koseoglu
- Department of Gastroenterology, Yildirim Beyazit University, Faculty of Medicine, Turkey
| | | | - Tugba Kosker
- Department of Internal Medicine, Ankara Ataturk Education and research Hospital, Ankara, Turkey
| | - Naciye Buyukasik
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yildirim Beyazit University, Faculty of Medicine, Turkey
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19
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Köseoğlu H, Solakoğlu T, Akın FE, Kılıçarslan A, Akbaba S, Algın O, Büyükaşık NŞ, Ersoy O. Intestinal gastrointestinal stromal tumors presenting with gastrointestinal bleeding: different diagnostic modalities in three patients. Electron J Gen Med 2018. [DOI: 10.29333/ejgm/89640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Affiliation(s)
- O Ersoy
- Department of Histology and Embryology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - G Kizilay
- Department of Histology and Embryology, Faculty of Medicine, Trakya University, Edirne, Turkey
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21
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Solakoğlu T, Köseoğlu H, Özer Sarı S, Akın FE, Demirezer Bolat A, Tayfur Yürekli Ö, Büyükaşık NŞ, Ersoy O. Role of baseline adenoma characteristics for adenoma recurrencein patients with high-risk adenoma. Turk J Med Sci 2017; 47:1416-1424. [PMID: 29151312 DOI: 10.3906/sag-1502-105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Background/aim: The present observational study aimed to determine the predictive value of 3-year recurrence adenoma characteristics at baseline conventional colonoscopy in patients with high-risk adenoma.Materials and methods: A total of 47 patients with high-risk adenoma at baseline colonoscopy were followed up and underwent a surveillance colonoscopy at 3 years. Correlations between adenoma recurrence and baseline adenoma characteristics (size, number, histological features, and location) were analyzed.Results: Among 135 patients with high-risk adenoma, 47 patients (35%) who underwent surveillance colonoscopy at 3 years following baseline colonoscopy were included in the study. In these 47 patients, at least one new adenoma was detected in 19 (40.4%) patients, and new advanced adenomas were detected in 5 (10.6%) patients during the surveillance colonoscopy. No significant difference was found in patients who had adenoma recurrence versus those who did not in terms of size of adenomas (P = 0.143), number of adenomas (P = 0.562), histological properties of adenomas (P = 0.658), or locations of adenomas (P = 0.567).Conclusion: Baseline adenoma characteristics were not associated with the recurrence of adenomas or advanced adenomas in patients with high-risk adenoma.
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22
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Tahtacı M, Demirezer Bolat A, Tayfur Yürekli Ö, Köseoğlu H, Başaran M, Özer Sarı S, Ersoy O. Is glycogenic acanthosis a predictor of insulin resistance and metabolic syndrome? Turk J Gastroenterol 2017; 28:337-341. [PMID: 28776494 DOI: 10.5152/tjg.2017.17159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS To evaluate the incidence of insulin resistance and metabolic syndrome (MetS) in patients with glycogenic acanthosis (GA). MATERIALS AND METHODS Thirty patients with GA, detected upon endoscopy, and 30 age- and sex-matched control patients without GA were included in this case-control study. Patients with GA were considered group 1 and control group was considered group 2. Anthropometric measurements [height, weight, and waist circumference (WC)], biochemical parameters [fasting plasma glucose (FPG), triglyceride, high-density lipoprotein (HDL), and low-density lipoprotein (LDL)], and serum fasting insulin levels were evaluated. Insulin resistance (IR) was estimated by the homeostatic model assessment of IR. MetS was diagnosed using the criteria of the National Cholesterol Education Program Adult Treatment Panel III. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated to evaluate associations with GA. RESULTS There were no differences in terms of FPG, triglyceride, HDL, and LDL between groups (p-values 0.118, 0.114, 0.192, 0.086, respectively). WC was significantly higher in group 1 than in group 2 (103.77 vs 97.03, p=0.032). The number of patients with IR and MetS were significantly higher in group 1 than in group 2 (53.3% vs 13.3%, p=0.003 and 53.3% vs 23.3%, p=0.034). ORs [95% CI] of WC, IR, and MetS for GA were 0.68 [0.17-2.62], 7.12 [1.89-26.72], and 4.11 [1.04-16.21], respectively. CONCLUSION These findings showed that IR and MetS were significantly associated with the presence of GA.
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Affiliation(s)
- Mustafa Tahtacı
- Department of Gastroenterology, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey.
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Song M, Karatutlu A, Ali I, Ersoy O, Zhou Y, Yang Y, Zhang Y, Little WR, Wheeler AP, Sapelkin AV. Spectroscopic super-resolution fluorescence cell imaging using ultra-small Ge quantum dots. Opt Express 2017; 25:4240-4253. [PMID: 28241630 DOI: 10.1364/oe.25.004240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We demonstrate a spectroscopic imaging based super-resolution approach by separating the overlapping diffraction spots into several detectors during a single scanning period and taking advantage of the size-dependent emission wavelength in nanoparticles. This approach has been tested using off-the-shelf quantum dots (Invitrogen Qdot) and in-house novel ultra-small (~3 nm) Ge QDs. Furthermore, we developed a method-specific Gaussian fitting and maximum likelihood estimation based on a Matlab algorithm for fast QD localisation. This methodology results in a three-fold improvement in the number of localised QDs compared to non-spectroscopic images. With the addition of advanced ultra-small Ge probes, the number can be improved even further, giving at least 1.5 times improvement when compared to Qdots. Using a standard scanning confocal microscope we achieved a data acquisition rate of 200 ms per image frame. This is an improvement on single molecule localisation super-resolution microscopy where repeated image capture limits the imaging speed, and the size of fluorescence probes limits the possible theoretical localisation resolution. We show that our spectral deconvolution approach has a potential to deliver data acquisition rates on the ms scale thus providing super-resolution in live systems.
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Solakoglu T, Sari SO, Koseoglu H, Basaran M, Akar M, Buyukasik S, Ersoy O. A case of hepatic portal venous gas after colonoscopy. Arab J Gastroenterol 2016; 17:140-142. [PMID: 27658328 DOI: 10.1016/j.ajg.2016.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 12/17/2013] [Revised: 01/01/2016] [Accepted: 08/20/2016] [Indexed: 11/26/2022]
Abstract
Hepatic portal venous gas (HPVG) is a rare radiologic finding that is usually precipitated by intestinal ischaemia, intra-abdominal abscesses, necrotising enterocolitis, abdominal trauma, infectious enteritis, and inflammatory bowel disease. In this study, we present a case of HPVG in a 66-year-old female patient who underwent colonoscopy for evaluation of haematochezia and a review of the literature focused on HPVG following colonoscopy.
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Affiliation(s)
- Tevfik Solakoglu
- Department of Gastroenterology, Corlu State Hospital, Corlu, Tekirdag, Turkey.
| | - Sevil O Sari
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Huseyin Koseoglu
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Murat Basaran
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - Mustafa Akar
- Department of Gastroenterology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Semnur Buyukasik
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
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Demirezer Bolat A, Akın FE, Tahtacı M, Tayfur Yürekli Ö, Köseoğlu H, Erten Ş, Başaran M, Selvi E, Büyükaşık Ş, Ersoy O. Risk Factors for Polyautoimmunity among Patients with Celiac Disease: A Cross-Sectional Survey. Digestion 2016; 92:185-91. [PMID: 26376434 DOI: 10.1159/000439586] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/21/2015] [Indexed: 02/04/2023]
Abstract
AIM To define the prevalence of polyautoimmunity (PAI) among celiac disease (CD) patients and to compare clinical and laboratory features of CD patients with or without PAI in order to determine the risk factors for PAI in CD. MATERIAL AND METHOD Patients diagnosed with CD in our clinic between 2007 and 2014 with at least 1 year of follow-up were retrospectively evaluated. Totally 145 patients were included in the study. Information on patient demographics and laboratory data were obtained from patient records. The study participants were divided into 2 groups. Group 1 was the CD-alone group consisting of patients without any other autoimmune diseases (AIDs), while group 2 was the PAI group consisting of patients with accompanying one or more AIDs. RESULTS The mean age of 145 CD patients (106 female and 39 male) included in the study was 37.2 ± 12.3 years. Of the 145 patients included, 48 (33.1%) were in the PAI group. When two groups were compared with each other in terms of the demographic features and laboratory data, the following were identified as risk factors for PAI: female gender, family history for AIDs, antigliadin IgG positivity, vitamin D deficiency, antinuclear antibody positivity ≥1/80 titer and having any musculoskeletal disease. CONCLUSION To the best of our knowledge, this is one of the largest studies in the literature on CD patients for the PAI prevalence and related risk factors. Identification of the risk factors in early stages is important to explore PAI among CD patients. Larger, prospective studies are warranted about the risk factors and autoimmune characteristics of CD.
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Aslan AN, Sarı C, Özer Sarı S, Tayfur Yürekli Ö, Baştuğ S, Sivri S, Ersoy O, Bozkurt E. Association between aortic stiffness and left ventricular function in inflammatory bowel disease. Cardiol J 2016; 23:202-10. [PMID: 26779973 DOI: 10.5603/cj.a2016.0008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/07/2015] [Accepted: 12/31/2015] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Recent studies have reported an increased incidence of both aortic stiffness and left ventricular (LV) systolic and diastolic dysfunction in patients with inflammatory bowel disease (IBD). However, the association between aortic stiffness and the LV function has not been fully defined. We aimed to investigate the relationship between aortic stiffness and the LV function in IBD patients. METHODS AND RESULTS Seventy-two patients with IBD (56 cases of ulcerative colitis and 16 cases of Crohn's disease) and 50 healthy controls were consecutively enrolled in this study. The LV systolic and diastolic functions were assessed using conventional echocardiographic techniques, including tissue Doppler echocardiography. The degree of aortic strain and distensibility were calculated based on the aortic diameters measured on M-mode echocardiography at thelevel of 3 cm above the aortic valve and the blood pressure values obtained on sphygmomanometry. There were significant differences between the IBD and control group in the degree of aortic strain and distensibility. Significant differences were also observed between the patient and control groups in the parameters of the LV systolic and diastolic functions. Moreover, aortic stiffness was found to be associated with the LV function in the patient group. CONCLUSIONS There is a significant relationship between aortic stiffness and LV systolic and diastolic dysfunction in patients with IBD, based on the findings of this study. The parameters of aortic elasticity measured according to 2-dimensional echocardiographic methods can be beneficial for predicting early cardiovascular risk in cases of IBD. (.
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Affiliation(s)
- Abdullah Nabi Aslan
- Department of Cardiology, Ataturk Education and Research Hospital, Ankara, Turkey.
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27
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Akin FE, Sari C, Özer-Sari S, Demirezer-Bolat A, Durmaz T, Keles T, Ersoy O, Bozkurt E. The evaluation of left ventricular functions with tissue doppler echocardiography in adults with celiac disease. Saudi J Gastroenterol 2016; 22:116-21. [PMID: 26997217 PMCID: PMC4817294 DOI: 10.4103/1319-3767.164187] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND/AIM The aim of this study was to investigate the effects of celiac disease on cardiac functions using tissue Doppler echocardiography (TDE). PATIENTS AND METHODS The study included 30 patients with celiac disease (CD) and 30 healthy volunteers. Echocardiographic examinations were assessed by conventional echocardiography and tissue Doppler imaging. The peak systolic velocity (S'm), early diastolic myocardial peak velocity (E'm), late diastolic myocardial peak velocity (A'm), E'm/A'm ratio, myocardial precontraction time (PCT'm), myocardial contraction time (CT'm), and myocardial isovolumetric relaxation time (IVRT'm), E to E'm ratio were measured. RESULTS In pulsed wave Doppler echocardiography, mitral late diastolic flow (A) velocity and E to E'm ratio were significantly higher (P = 0.02 and P = 0,017), E/A ratio was significantly lower (P = 0.008) and IVRT was significantly prolonged (P = 0.014) in patients with CD. In TDE, S'm, E'm, and E'm/A'm ratio were significantly lower, IVRT'm was longer (P = 0.009) from septal mitral annulus and S'm, E'm, E'm/A'm ratio were significantly lower, PCT'm, PCT/ET ratio, IVRT'm were longer, and MPI was higher from lateral mitral annulus in celiac group than controls. CONCLUSION Our study confirms that patients with CD have impaired diastolic function. More importantly, we also demonstrated an impairment of myocardial systolic function in patients with CD by TDE. We recommend using TDE in addition to conventional echocardiography parameters for the cardiovascular risk assessment of patients with CD.
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Affiliation(s)
- Fatma E. Akin
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Cenk Sari
- Department of Cardiology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey,Address for correspondence: Dr. Cenk Sari, Department of Cardiology, Ataturk Research and Training Hospital, Ankara, Turkey. E-mail:
| | - Sevil Özer-Sari
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Aylin Demirezer-Bolat
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
| | - Tahir Durmaz
- Department of Cardiology, Yıldırım Beyazıt University, Ankara, Turkey
| | - Telat Keles
- Department of Cardiology, Yıldırım Beyazıt University, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University, Ankara, Turkey
| | - Engin Bozkurt
- Department of Cardiology, Yıldırım Beyazıt University, Ankara, Turkey
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Zhang Y, Ersoy O, Karatutlu A, Little W, Sapelkin A. Local structure of Ge quantum dots determined by combined numerical analysis of EXAFS and XANES data. J Synchrotron Radiat 2016; 23:253-259. [PMID: 26698071 DOI: 10.1107/s160057751501913x] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 10/10/2015] [Indexed: 06/05/2023]
Abstract
The sensitivity of X-ray absorption near-edge structure (XANES) to the local symmetry has been investigated in small (∼4 nm) matrix-free Ge quantum dots. The FDMNES package was used to calculate the theoretical XANES spectra that were compared with the experimental data of as-prepared and annealed nanoparticles. It was found that XANES data for an as-prepared sample can only be adequately described if the second coordination shell of the diamond-type structural model is included in the FDMNES calculations. This is in contrast to the extended X-ray absorption fine-structure data that show only the first-shell signal. These results suggest that, despite the high degree of disorder and a large surface-to-volume ratio, as-prepared small Ge quantum dots retain the diamond-type symmetry beyond the first shell. Furthermore, we utilized this sensitivity of XANES to the local symmetry to study annealed Ge quantum dots and found evidence for significant structural distortion which we attribute to the existence of surface disorder in the annealed oxygen-free Ge quantum dots.
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Affiliation(s)
- Yuanpeng Zhang
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Osman Ersoy
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Ali Karatutlu
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - William Little
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Andrei Sapelkin
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
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Corsini NRC, Zhang Y, Little WR, Karatutlu A, Ersoy O, Haynes PD, Molteni C, Hine NDM, Hernandez I, Gonzalez J, Rodriguez F, Brazhkin VV, Sapelkin A. Pressure-Induced Amorphization and a New High Density Amorphous Metallic Phase in Matrix-Free Ge Nanoparticles. Nano Lett 2015; 15:7334-7340. [PMID: 26457875 DOI: 10.1021/acs.nanolett.5b02627] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Over the last two decades, it has been demonstrated that size effects have significant consequences for the atomic arrangements and phase behavior of matter under extreme pressure. Furthermore, it has been shown that an understanding of how size affects critical pressure-temperature conditions provides vital guidance in the search for materials with novel properties. Here, we report on the remarkable behavior of small (under ~5 nm) matrix-free Ge nanoparticles under hydrostatic compression that is drastically different from both larger nanoparticles and bulk Ge. We discover that the application of pressure drives surface-induced amorphization leading to Ge-Ge bond overcompression and eventually to a polyamorphic semiconductor-to-metal transformation. A combination of spectroscopic techniques together with ab initio simulations were employed to reveal the details of the transformation mechanism into a new high density phase-amorphous metallic Ge.
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Affiliation(s)
- Niccolo R C Corsini
- Department of Physics, Blackett Laboratory, Imperial College London , Exhibition Road, London SW7 2AZ, United Kingdom
| | - Yuanpeng Zhang
- School of Physics and Astronomy, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - William R Little
- School of Physics and Astronomy, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - Ali Karatutlu
- School of Physics and Astronomy, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
- Electrical and Electronics Engineering, Yildirim Campus, Bursa Orhangazi University , 16245 Yildirim, Bursa, Turkey
| | - Osman Ersoy
- School of Physics and Astronomy, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - Peter D Haynes
- Department of Physics, Blackett Laboratory, Imperial College London , Exhibition Road, London SW7 2AZ, United Kingdom
| | - Carla Molteni
- Department of Physics, King's College London , Strand, London WC2R 2LS, United Kingdom
| | - Nicholas D M Hine
- TCM Group, Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department of Physics, University of Warwick , Coventry CV4 7AL, United Kingdom
| | - Ignacio Hernandez
- Malta Consolider Team, Departmento CITIMAC, Universidad de Cantabria , Avenida Los Castros s/n, 39005 Santander, Spain
| | - Jesus Gonzalez
- Malta Consolider Team, Departmento CITIMAC, Universidad de Cantabria , Avenida Los Castros s/n, 39005 Santander, Spain
| | - Fernando Rodriguez
- Malta Consolider Team, Departmento CITIMAC, Universidad de Cantabria , Avenida Los Castros s/n, 39005 Santander, Spain
| | - Vadim V Brazhkin
- High Pressure Physics Institute, RAS , 142190 Troitsk, Moscow Region, Russia
| | - Andrei Sapelkin
- School of Physics and Astronomy, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
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Atalay R, Solakoğlu T, Ozer Sarı S, Köseoğlu H, Akın FE, Demirezer Bolat A, Selvi E, Büyükaşık NS, Ersoy O. Evaluation of gastric polyps detected by endoscopy: a single-center study of a four-year experience in Turkey. Turk J Gastroenterol 2015; 25:370-3. [PMID: 25254517 DOI: 10.5152/tjg.2014.6705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS The aim of this study was to evaluate the gastric polyps detected by endoscopy in our institution with respect to their frequency, size, anatomic location, presence of dysplasia, and histopathologic features. MATERIALS AND METHODS Records of a total of 14,240 patients who underwent endoscopy between January 2008 and January 2012 were reviewed retrospectively. Of the 14,240 patients, 174 determined to have at least 1 histopathologically proven polyp were included in the study. RESULTS Three hundred eleven gastric polyps were found in 174/14,240 (1.2%) patients (1.79 polyps per patient). Gastric polyps were found most commonly in the antrum (41.5%). Of all gastric polyps, 189 (60.8%) were less than 1 cm. Histopathologically, the most common polyp type was hyperplastic (n: 261, 83.9%), followed by adenomatous (n: 23, 7.4%). Eight (34.8%) of the adenomatous polyps showed dysplasia, and in 4 (17.4%) of these cases, the dysplasia was high-grade. Nineteen (6.1%) of all gastric polyps were identified to be fundic gland polyps. CONCLUSION According to this study from Turkey, the majority of polyps detected by endoscopy was solitary, smaller than 1 cm, and found in the antrum; furthermore, the most common type was a hyperplastic polyp.
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Affiliation(s)
- Roni Atalay
- Department of Gastroenterology, Yıldırım Beyazıt University, Ankara Atatürk Education and Research Hospital, Ankara, Turkey.
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Yurekli OT, Solakoglu T, Atalay R, Bolat AD, Akin FE, Selvi E, Buyukasik NS, Ersoy O. Association between serum vitamin D and parathyroid hormone levels in Turkish patients with colonic polyps. Acta Gastroenterol Belg 2015; 78:206-211. [PMID: 26151689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
UNLABELLED Epidemiological and investigational studies have proved that vitamin D is important in autoimmune processes and has anticancerogenic properties. But the interplay between serum vitamin D and parathyroid hormone (PTH) in colorectal polyps has been less clearly put forward. We evaluated serum vitamin D, PTH levels in Turkish people and tried to stratify colorectal polyps according to risk factors. Patients undergoing colonoscopy between January 2012 and March 2012 were considered to study serum vitamin D levels during winter. Study population comprised of 98 colorectal polyp and 197 normal colonoscopy patients. RESULTS Serum vitamin D levels were not different between the groups (mean vitamin D level in polyp group 14.3 ± 11.1 vs. 12.7 ± 6.74 the normal group, p = 0.12). Likewise serum PTH levels were not different between the groups Patients with polyps were further classified as high and low risk polyps. When discriminant function analysis was conducted, the effects of vitamin D or PTH levels were not again significant. During the study period 16 colorectal carcinoma cases were detected. Serum vitamin D or PTH levels were not significantly different between colorectal cancer or overall study group patients. Finally serum vitamin D levels were stratified into quartiles. Likewise there was not any significant difference between the groups. The present study suggests that serum vitamin D and PTH levels were not different between colorectal polyp and control groups. And serum vitamin D levels were significantly low in both groups suggesting a significant vitamin D deficient state in Turkish patients.
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Altunoglu A, Ozturk C, Erten S, Kucuksahin O, Yayar OY, Bora F, Kilic L, Uz E, Ersoy O. SP036THE FREQUENCY OF MEFV GENE MUTATIONS IN AUTOSOMAL DOMINANT POLYCYSTIC KIDNEY DISEASE PATIENTS. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv187.36] [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: 11/14/2022] Open
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Atalay R, Ersoy R, Demirezer AB, Akın FE, Polat SB, Cakir B, Ersoy O. Day-night variations in thyroid stimulating hormone and its relation with clinical status and metabolic parameters in patients with cirrhosis of the liver. Endocrine 2015; 48:942-8. [PMID: 25063309 DOI: 10.1007/s12020-014-0364-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 03/14/2014] [Accepted: 07/09/2014] [Indexed: 12/11/2022]
Abstract
To investigate day-night variations in thyroid stimulating hormone (TSH) and its relation with clinical status and metabolic parameters in patients with cirrhosis. Forty-one patients with negative thyroid antibodies and normal thyroid function tests who were diagnosed with cirrhosis were included. Thirty-five age- and gender-matched healthy subjects were included in control group.TSH, fT3, and fT4 levels, which were measured both in the morning and late evening. The difference between nocturnal TSH and morning TSH (ΔTSH) were compared between groups. Relation between Child-Turcotte-Pugh, model for End-Stage Liver Disease (MELD) and MELD-Na scores and levels of thyroid hormones, ΔTSH and serum sodium (Na) levels was investigated. Relation between ΔTSH and clinical status and metabolic parameters was also evaluated. The mean morning fT3, nocturnal fT3, nocturnal TSH, and ΔTSH levels were significantly lower, morning and nocturnal fT4 levels were higher in patients with cirrhosis (p<0.001, p<0.001, p=0.004, p<0.001, and p<0.001). As the ROC analysis, day-night variation was detected to be impaired in the event that difference between nocturnal TSH level and morning TSH level was lower than 1 uIU/mL in patients with cirrhosis with a sensitivity of 92.7% and specificity of 71.4% (p<0.001).A significant positive correlation was found between serum Na levels and fT3 in patients with cirrhosis (r=0.479, p=0.001), and a significant negative correlation was found between the severity of clinical status and low levels of fT3 in patients with cirrhosis (p<0.001).Nocturnal TSH increase does not occur in cases of cirrhosis without known thyroid disease and with normal thyroid function tests, which may be an early finding of impaired thyroid functions in patients with cirrhosis.
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Affiliation(s)
- Roni Atalay
- Department of Gastroenterology, Ankara Ataturk Education and Training Hospital, Ankara, Turkey
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Solakoğlu T, Atalay R, Köseoğlu H, Özer Sarı S, Demirezer Bolat A, Akın E, Yürekli ÖT, Selvi E, Büyükaşık Ş, Ersoy O. Analysis of 2222 colorectal polyps in 896 patients: a tertiary referreal hospital study. Turk J Gastroenterol 2015; 25:175-9. [PMID: 25003678 DOI: 10.5152/tjg.2014.5059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND/AIMS In Turkey, there are a limited number of studies including the characteristics of colorectal polyps, and the number of patients was too small in most of them. The aim of this study was to evaluate histological characteristics of colorectal polyps that were determined by colonoscopy and clinical features of patients who had removal of the polyp. MATERIALS AND METHODS Patients who underwent colonoscopy were analyzed retrospectively from January 2007 to December 2011. Adult patients (≥18 years) with no history of previous colorectal neoplasms who had removal of colorectal polyp were included. RESULTS A total of 2222 colorectal polyps were removed in 896 patients. Of these, 621 were male (69.3%) and 275 were female (30.7%). Most of the patients with polyps presented in the age group of 50-59 years (251 patients, 28%). It was recorded that 1816 (81.7%) of all polyps were adenomas. Of 1816 adenomas, 1577 (86.8%) were tubular adenomas. Of patients with adenomas, 19.7% was younger than 50 years. A total of 337 (37.6%) patients were in the high-risk group. Mean age of the high-risk patients was higher than the others (62±13 years and 58±13 years, respectively, p=0.001). CONCLUSION This study is the largest series of colorectal polyps in Turkey to date. We determined the clinical and histologic characteristics of colorectal polyps and consider that the detection rate of colorectal adenomas in patients under the age of 50 years may be increased by the widespread use of colonoscopy as a diagnostic test.
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Affiliation(s)
- Tevfik Solakoğlu
- Department of Gastroenterology, Ankara Atatürk Training and Research Hospital, Ankara, Turkey.
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Usluoğullari CA, Demir Önal E, Özdemir E, Caner S, Ersoy O, Ersoy R, Çakir B. What is the effect of radioiodine therapy on Helicobacterpylori infection? Turk J Med Sci 2015; 44:520-3. [PMID: 25558660 DOI: 10.3906/sag-1301-142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM Helicobacter pylori is an important human pathogen associated with gastric and duodenal ulcers, gastric mucosa- associated lymphoid tissue lymphoma, and adenocarcinoma. Radioiodine (RAI) treatment plays an important role in the management of differentiated thyroid cancer and primary hyperthyroidism. It is known that during RAI treatment, a considerable amount is absorbed by the stomach as well. In this study we aimed to reveal any therapeutic impact of RAI on H. pylori infections. MATERIALS AND METHODS Eighty-seven patients who were hospitalized for RAI treatment were consecutively included in this study. Of those, 76 patients had differentiated thyroid cancer and 11 had primary hyperthyroidism. The urea breath test (UBT) was performed on the day before RAI, and the test was repeated after 2 months. RESULTS The dose of RAI was 115 ± 3.3 mCi (range: 100-150 mCi) in the patients with malignant disease and 22.7 ± 1.4 mCi (range: 20-30 mCi) in the remaining patients. Among the patients with differentiated thyroid cancer, 44 (57%) had positive and 32 (43%) had negative UBT tests prior to RAI. Four (36%) patients with hyperthyroidism had pretreatment positive UBT tests and 7 (64%) had negative tests. The results of UBT conducted 2 months after RAI therapy were identical in every patient, which means that none of the patients with positive UBT became UBT-negative (P = 1). CONCLUSION RAI does not have any therapeutic effect on H. Ovlori infection.
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Affiliation(s)
- Celil Alper Usluoğullari
- Department of Endocrinology and Metabolism, Atatürk Teaching and Research Hospital, Ankara, Turkey.
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Karatutlu A, Song M, Wheeler AP, Ersoy O, Little WR, Zhang Y, Puech P, Boi FS, Luklinska Z, Sapelkin AV. Synthesis and structure of free-standing germanium quantum dots and their application in live cell imaging. RSC Adv 2015. [DOI: 10.1039/c5ra01529d] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Colloidally synthesized free-standing Ge qdots with a unique core–shell structure were demonstrated to be a viable bio-imaging probe.
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Affiliation(s)
- Ali Karatutlu
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
| | - Mingying Song
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
| | - Ann P. Wheeler
- Blizard Institute of Cell and Molecular Sciences
- Barts and the Royal London Hospital School of Medicine and Dentistry
- Queen Mary, University of London
- UK
| | - Osman Ersoy
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
| | - William R. Little
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
| | - Yuanpeng Zhang
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
| | - Pascal Puech
- CEMES-CNRS
- University of Toulouse
- 31055 Toulouse
- France
| | - Filippo S. Boi
- School of Engineering and Materials Science
- Queen Mary, University of London
- London
- UK
| | - Zofia Luklinska
- School of Physical Science and Technology
- Sichuan University
- People's Republic of China
| | - Andrei V. Sapelkin
- Centre
- for Condensed Matter and Materials Physics
- School of Physics and Astronomy
- Queen Mary, University of London
- London
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Zhang Y, Karatutlu A, Ersoy O, Little W, Cibin G, Dent A, Sapelkin A. Structure and effects of annealing in colloidal matrix-free Ge quantum dots. J Synchrotron Radiat 2015; 22:105-112. [PMID: 25537595 DOI: 10.1107/s1600577514022486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 10/13/2014] [Indexed: 06/04/2023]
Abstract
The structure of small (2-5 nm) Ge quantum dots prepared by the colloidal synthesis route is examined. Samples were synthesized using either GeO2 or GeCl4 as precursor. As-prepared samples were further annealed under Ar or H2/Ar atmosphere at different temperatures in order to understand the effect of annealing on their structure. It was found that as-prepared samples possess distinctly different structures depending on their synthesis route as indicated by their long-range ordering. An appreciable amount of oxygen was found to be bound to Ge in samples prepared with GeO2 as a precursor; however, not for GeCl4. Based on combined transmission electron microscope, Raman, X-ray diffraction and X-ray absorption measurements, it is suggested that as-prepared samples are best described by the core-shell model with a small nano-crystalline core and an amorphous outer layer terminated either with oxygen or hydrogen depending on the synthesis route. Annealing in an H2Ar atmosphere leads to sample crystallization and further nanoparticle growth, while at the same time reducing the Ge-O bonding. X-ray diffraction measurements for as-prepared and annealed samples indicate that diamond-type and metastable phases are present.
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Affiliation(s)
- Yuanpeng Zhang
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Ali Karatutlu
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - Osman Ersoy
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | - William Little
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
| | | | - Andy Dent
- Diamond Light Source Ltd, Didcot, Oxon OX11 0DE, UK
| | - Andrei Sapelkin
- School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, London E1 4NS, UK
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Yurekli OT, Buyukasik NS, Ersoy O. Arterial thromboembolic complications may be more common than expected in inflammatory bowel diseases. J Crohns Colitis 2014; 8:1740-1. [PMID: 25108316 DOI: 10.1016/j.crohns.2014.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 07/21/2014] [Accepted: 07/22/2014] [Indexed: 02/08/2023]
Affiliation(s)
| | | | - Osman Ersoy
- Yıldırım Beyazıt University, Faculty of Medicine, Turkey.
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Solakoğlu T, Köseoğlu H, Ersoy O. Author's reply: To PMID 25003678. Turk J Gastroenterol 2014; 25:600. [PMID: 25566603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Solakoğlu T, Köseoğlu H, Ersoy O. Author's reply: To PMID 25003678. Turk J Gastroenterol 2014; 25:596. [PMID: 25566601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Solakoğlu T, Köseoğlu H, Ersoy O. Author's reply: To PMID 25003678. Turk J Gastroenterol 2014; 25:597-598. [PMID: 25566602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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42
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Ersoy R, Ersoy O, Evranos Ogmen B, Polat SB, Kilic M, Yildirim N, Ozturk L, Cakir B. Diagnostic value of endoscopic ultrasonography for preoperative localization of parathyroid adenomas. Endocrine 2014; 47:221-6. [PMID: 24415171 DOI: 10.1007/s12020-013-0152-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
Abstract
The most common cause of primary hyperparathyroidism (PHPT) is a single, sporadic parathyroid adenoma. Ultrasonography (US) and (99m)Technetium methoxyisobutylisonitrile ((99m)Tc-MIBI) scintigraphy are the imaging methods most widely used to localize parathyroid adenomas. The purpose of the present study was to determine the diagnostic value and accuracy of endoscopic ultrasonography (EUS) for localizing parathyroid adenoma compared with those of US and (99m)Tc-MIBI scintigraphy. Forty-seven patients with a PHPT diagnosis and who were recommended for surgery were enrolled in this study. An endoscopist who was blinded to the previous US and (99m)Tc-MIBI scintigraphy results performed the EUS in each patient. Thirty-nine female and eight male patients with PHPT were evaluated. The presence of adenoma was confirmed by subsequent postsurgical pathology results. One case was excluded because the histopathological evaluation was compatible with a lymph node, although the lesion was detected using three different imaging modalities preoperatively. The locations of the parathyroid adenomas were correctly documented by US in 39 patients (84.7 %) by (99m)Tc-MIBI scintigraphy in 35 (76.0 %), and by EUS in 44 (95.6 %) of 46 patients. EUS located all 31 adenomas detected previously with US and (99m)Tc-MIBI scintigraphy. EUS also successfully located three adenomas that could not be identified by US and (99m)Tc-MIBI scintigraphy. The positive predictive value and diagnostic accuracy of EUS, US, and (99m)Tc-MIBI were 97.7, 97.7, and 95.6 %; 88.6, 97.5, and 86.9 %; and 77.7, 97.2, 76.0 %, respectively. EUS was preferred as the second step imaging tool for detecting parathyroid adenomas that could not be localized by US and (99m)Tc-MIBI scintigraphy.
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Affiliation(s)
- Reyhan Ersoy
- Department of Endocrinology and Metabolism, Faculty of Medicine, Yildirim Beyazit University, No: 2, Bilkent Yolu, Ankara, Turkey,
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Zhang Y, Karatutlu A, Ersoy O, Sapelkin A. Looking into the structure of Ge nano-crystals through combined Diffraction/XAFS. Acta Crystallogr A Found Adv 2014. [DOI: 10.1107/s2053273314084666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Nano-particles of different materials including II-VI (ZnS, ZnO, etc.), III-V (AlN, GaN, etc.) and IV (Si, Ge, etc.) have been applied widely because of their superb optical-electrical properties. More importantly, the size & structure-dependent character of their physical properties due to the quantum confinement effect attracted much research interest during the past decades [1]. Ge is characterized by relatively large Exciton Bohr Radius (≍24nm) [3], which potentially favors the quantum confinement effects for tuning the photoluminescence (PL) properties. Besides, the low toxicity of Ge suggests potential biological applications such as cell imaging and labeling [4]. For the structure characterization of our prepared Ge quantum dots (QDs), we used the in-house X-ray pair distribution function (PDF) machine (X-ray from Ag source with wavelength down to 0.056nm) and Diamond light source synchrotron radiation source (XAFS, XRD, PL, etc.) to characterize the atomic structure. Several other methods such as TEM and SAED were used to provide a comprehensive picture of QDs on nanoscale. The results showed that our as-prepared Ge QDs are amorphous with small size, and annealing process could attenuate the Ge-O bonding. In both aged as prepared and fresh annealed samples we observed a diffraction peak corresponding to d-spacing around 2.8Å, which can be associated with either ST12 or BC8 metastable phase of Ge. Moreover, samples showing extra diffraction peaks also shows different XANES features from that of diamond Ge. The fdmnes calculation and FitIt fitting was carried out to further look into structural information.
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Affiliation(s)
- T Solakoglu
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Ankara, Turkey
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Akbaba S, Köseoğlu H, Bozkırlı BO, Akın FE, Gündoğdu RH, Ersoy O, Karakaya J, Ersoy PE. Effects of nasal cleansing and topical decongestants on patient tolerance during upper gastrointestinal endoscopy: a prospective randomized study. Int J Clin Exp Med 2014; 7:1422-1429. [PMID: 24995106 PMCID: PMC4073767] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
UNLABELLED Adequate patient tolerance is essential for successful completion of safe endoscopic examination. Although there are many reported methods to increase patient tolerance, none of these fully resolve this problem. The aim of this study was to investigate whether relaxing the nasal airways increase patient tolerance to upper gastrointestinal endoscopy (UGE). A total of 300 patients scheduled for diagnostic UGE were randomized into three separate groups. Prior to the UGE procedure the first group was administered intranasal cortisone spray following nasal cleansing (INC). Patients in the second group were administered intranasal saline after nasal cleansing (INSP). The patients in the third group were treated with the standard endoscopic procedure alone (SEP). After the UGE procedure, both endoscopists and patients were asked to evaluate the ease of performing the procedure. Furthermore, patients who had undergone endoscopy before were asked to compare their current experience to their most recent endoscopy. Results shown that INC and INSP groups had significantly better tolerance than the SEP group. When comparing their current experience with the previous one, INC and INSP groups reported that the current experience was better. CONCLUSIONS Taking measures to relax the nasal airways makes breathing more comfortable and increase patient tolerance during UGE.
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Affiliation(s)
- Soner Akbaba
- Department of General Surgery, Atatürk Training and Research HospitalAnkara, Turkey
| | - Hüseyin Köseoğlu
- Department of Gastroenterology, Yıldırım Beyazıt University, Faculty of MedicineAnkara, Turkey
| | | | - Fatma Ebru Akın
- Department of Gastroenterology, Atatürk Training and Research HospitalAnkara, Turkey
| | - Rıza Haldun Gündoğdu
- Department of General Surgery, Atatürk Training and Research HospitalAnkara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yıldırım Beyazıt University, Faculty of MedicineAnkara, Turkey
| | - Jale Karakaya
- Department of Biostatistics, Hacettepe University, Faculty of MedicineAnkara, Turkey
| | - Pamir Eren Ersoy
- Department of General Surgery, Atatürk Training and Research HospitalAnkara, Turkey
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Solakoglu T, Koseoglu H, Atalay R, Sari SO, Yurekli OT, Akin E, Bolat AD, Buyukasik S, Ersoy O. Impact of anti-aggregant, anti-coagulant and non-steroidal anti-inflammatory drugs on hospital outcomes in patients with peptic ulcer bleeding. Saudi J Gastroenterol 2014; 20:113-9. [PMID: 24705149 PMCID: PMC3987151 DOI: 10.4103/1319-3767.129476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND/AIMS There are a limited number of studies including the impact of antiplatelet drugs use on hospital outcomes for nonvariceal upper gastrointestinal bleeding. The aim of this study was to determine the effect of anti-aggregant, anti-coagulant and non-steroidal anti-inflammatory drugs upon hospital outcomes in patients with peptic ulcer bleeding. MATERIALS AND METHODS The patients under treatment with antiaggregant, anticoagulant or non-steroidal anti-inflammatory drugs were categorized as exposed group (n = 118) and the patients who were not taking any of these drugs were categorized as non-exposed group (n = 81). We analyzed the data of drug intake, comorbid disease, blood transfusion, duration of hospital stay, Blatchford/total Rockall score and diagnosis of patients. RESULTS In total, 199 patients were included. Of these 59.3% (exposed group) were taking drugs. The patients in exposed group were significantly older than those in non-exposed group (62.9 ± 17.3 years; 55.5 ± 19.3 years, P = 0.005, respectively). Mean number of red blood cell units transfused (2.21 ± 1.51; 2.05 ± 1.87, P = 0.5), duration of hospital stay (3.46 ± 2.80 days; 3.20 ± 2.30 days, P = 0.532) and gastric ulcer rate (33% vs 23.4%, P = 0.172) were higher in exposed group than in non-exposed group but the differences were not statistically significant. Total Rockall and Blatchford scores of the patients were significantly higher in exposed group than in non-exposed group (3.46 ± 1.72 vs 2.94 ± 1.87, P = 0.045; 10.29 ± 3.15 vs 9.31 ± 3.40, P = 0.038). CONCLUSION Our study has shown that anticoagulants, antiaggregants and nonsteroidal anti-inflammatory drugs do not effect duration of hospital stay, red blood cell transfusion requirement and rebleeding for peptic ulcer bleeding.
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Affiliation(s)
- Tevfik Solakoglu
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey,Address for correspondence: Dr. Tevfik Solakoglu, Ankara Ataturk Education and Research Hospital, Department of Gastroenterology, Bilkent, Ankara 06800, Turkey. E-mail:
| | - Huseyin Koseoglu
- Department of Gastroenterology, Yildirim Beyazit University, Faculty of Medicine, Ankara, Turkey
| | - Roni Atalay
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Sevil O. Sari
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Oyku T. Yurekli
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Ebru Akin
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Aylin D. Bolat
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Semnur Buyukasik
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital, Bilkent, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Yildirim Beyazit University, Faculty of Medicine, Ankara, Turkey
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Köseoğlu H, Solakoğlu T, Atalay R, Bolat AD, Akin E, Yürekli ÖT, Büyükaşik NŞ, Ersoy O. Anticoagulant-induced intramural duodenal haematoma presenting with upper-gastrointestinal haemorrhage. Arab J Gastroenterol 2013; 14:180-2. [DOI: 10.1016/j.ajg.2013.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 09/05/2013] [Indexed: 11/29/2022]
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Solakoglu T, Akar M, Aktan Kosker T, Buyukasik S, Ersoy O. Is bortezomib a rare cause of acute pancreatitis? JOP 2013; 14:682-3. [PMID: 24216563 DOI: 10.6092/1590-8577/1927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 09/26/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Tevfik Solakoglu
- Department of Gastroenterology, Ankara Ataturk Education and Research Hospital. Ankara, Turkey.
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Köseoğlu H, Atalay R, Büyükaşık NŞ, Canyiğit M, Özer M, Solakoğlu T, Akın FE, Bolat AD, Yürekli ÖT, Ersoy O. An Unusual Reason for Gastric Variceal Hemorrhage: Wandering Spleen. Indian J Surg 2013; 77:750-1. [PMID: 26730110 DOI: 10.1007/s12262-013-0993-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 10/07/2013] [Indexed: 12/20/2022] Open
Abstract
Wandering spleen is the displacement of the spleen due to the loss or weakening of the ligaments of the spleen and is seen very rarely with an incidence of less than 0.5 %. It can cause portal hypertension, but gastric variceal hemorrhage is a quite rare condition within the spectrum of this uncommon disease. We report a 22-year-old woman with wandering spleen presenting with life-threatening gastric variceal hemorrhage. Her diagnosis was made by computerized tomography. Endoscopic therapy was not adequate to stop the bleeding, and urgent splenectomy was performed. After surgery she has been well with no symptoms until now.
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Affiliation(s)
- Hüseyin Köseoğlu
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
| | - Roni Atalay
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Naciye Şemnur Büyükaşık
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Murat Canyiğit
- Department of Radiology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Mehmet Özer
- Department of General Surgery, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Tevfik Solakoğlu
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Fatma Ebru Akın
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Aylin Demirezer Bolat
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Öykü Tayfur Yürekli
- Department of Gastroenterology, Ankara Ataturk Research and Education Hospital, Ankara, Turkey
| | - Osman Ersoy
- Department of Gastroenterology, Faculty of Medicine, Yildirim Beyazit University, Ankara, Turkey
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Ersoy O, Akin E, Demirezer A, Koseoglu H, Balci S, Kiyak G. Cavernous haemangioma of small intestine mimicking gastrointestinal stromal tumour. Arab J Gastroenterol 2013; 14:139-40. [PMID: 24206746 DOI: 10.1016/j.ajg.2013.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 06/07/2013] [Accepted: 08/27/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Osman Ersoy
- Yildirim Beyazit University, Faculty of Medicine, Department of Gastroenterology, Ankara, Turkey.
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