1
|
Yuksel I, Cagir Y, Atay A. Immunomodulator combination versus mono therapy: Does combination therapy have an impact on infliximab therapy? Dig Liver Dis 2024; 56:530-531. [PMID: 38071183 DOI: 10.1016/j.dld.2023.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 02/17/2024]
Affiliation(s)
- Ilhami Yuksel
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey; Department of Gastroenterology, Ankara Yildirim Beyazit University School of Medicine, Ankara, Turkey.
| | - Yavuz Cagir
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Ali Atay
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| |
Collapse
|
2
|
Yuksel I, Atay A, Cagir Y, Kenarli K, Tenlik I, Coskun O. Combined Endoscopic Stricturotomy and Lumen Apposing Metal Stent in the Treatment of Crohn's Disease with Primary Ileocecal Valve Stricture. Gastrointest Endosc 2024:S0016-5107(24)00144-5. [PMID: 38432491 DOI: 10.1016/j.gie.2024.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/29/2023] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Affiliation(s)
- Ilhami Yuksel
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey; Department of Gastroenterology, Ankara Yildirim Beyazit University School of Medicine, Ankara, Turkey.
| | - Ali Atay
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Yavuz Cagir
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Kerem Kenarli
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Ilyas Tenlik
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Orhan Coskun
- Department of Gastroenterology, Ankara Bilkent City Hospital, Ankara, Turkey
| |
Collapse
|
3
|
Ari D, Ödemiş B, Başpinar B, Atay A, Erdoğan Ç. Ectopic Opening of Common Bile Duct to Duodenal Bulb: A Single Tertiary Center Experience. Surg Laparosc Endosc Percutan Tech 2023; 33:640-644. [PMID: 37725829 DOI: 10.1097/sle.0000000000001219] [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: 02/19/2023] [Accepted: 07/31/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND The ectopic opening of the common bile duct(CBD) into the duodenal bulb is a rare biliary anomaly. The study aimed to reveal the experience with clinical and endoscopic outcomes in these patients. MATERIALS AND METHODS This study was conducted on 57 consecutive patients who underwent endoscopic retrograde cholangiopancreatography (ERCP) for ectopic opening of the CBD into the duodenal bulb at our institution between 2010 and 2020. RESULTS The median age was 59 years (49 males). A total of 146 ERCP procedures were performed (once in 26 patients and 2 or more times in 31 patients). Ten patients had a history of unsuccessful ERCP in an external center. The median follow-up time was 14.6 months. All patients had a slit-like opening of the CBD into the duodenal bulb, apical stenosis, and hook-shaped distal CBD. ERCP findings were CBD stone or dilatation in 55 patients and post-cholecystectomy biliary leakage in 2 patients. Balloon dilatation was performed for apical stenosis in 7 patients and distal CBD stenosis in 26 patients. During the first ERCP session, biliary stent/nasobiliary drainage was placed in 37 patients, and CBD stones were extracted in 19 patients without stenting. Biliodigestive anastomosis was applied to 13 patients, 5 of whom had recurrent cholangitis, 7 required recurrent ERCP, and one was due to the technical difficulty of ERCP. CONCLUSIONS Ectopic biliary opening should be remembered if the papilla cannot be seen in its usual place in a patient with apical stenosis. ERCP should be performed in experienced hands, and surgery should be considered in the need for recurrent ERCP.
Collapse
Affiliation(s)
- Derya Ari
- Department of Gastroenterology, University of Health Sciences, Ankara City Hospital, Ankara, Turkey
| | | | | | | | | |
Collapse
|
4
|
Ödemiş B, Durak MB, Atay A, Başpınar B, Erdoğan Ç. A Step-Up Approach Using Alternative Endoscopic Modalities Is an Effective Strategy for Postoperative and Traumatic Pancreatic Duct Disruption. Dig Dis Sci 2023; 68:3745-3755. [PMID: 37358637 DOI: 10.1007/s10620-023-07996-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/21/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND AND AIMS Standard endotherapy for pancreatic duct (PD) disruption is pancreatic stenting and sphincterotomy. In patients refractory to standard treatment, treatment algorithm is currently not standardized. This study aims to report the 10-year experience with the endoscopic treatment of postoperative or traumatic PD disruption and to share our algorithmic approach. METHODS This retrospective study was conducted on 30 consecutive patients who underwent endoscopic treatment for postoperative (n = 26) or traumatic (n = 4) PD disruption between 2011 and 2021. Standard treatment was initially applied to all patients. Endoscopic modalities used with a step-up approach in patients unresponsive to standard treatment were stent upsizing and N-butyl-2-cyanoacrilate (NBCA) injection for partial disruption, and the bridging of the disruption with a stent and cystogastrostomy for complete disruption. RESULTS PD disruption was partial in 26 and complete in 4 patients. Cannulation and stenting of PD was successful in all patients and sphincterotomy was performed in 22 patients. Standard treatment was successful in 20 patients (66.6%). The resolution of PD disruption in 9 of 10 patients refractory to standard treatment was achieved with stent upsizing in 4, NBCA injection in 2, the bridging of the complete disruption in one, and cystogastrostomy after spontaneously and intentionally developed pseudocyst in one patient each. Overall, therapeutic success rate was 96.6% (100% for partial, 75% for complete disruption). Procedural complications occurred in 7 patients. CONCLUSIONS Standart treatment for PD disruption is usually effective. In patients refractory to standard treatment, the outcome may be improved by step-up approach using alternative endoscopic modalities.
Collapse
Affiliation(s)
- Bülent Ödemiş
- Department of Gastroenterology, Ankara City Hospital, University of Health Sciences, Bilkent Avenue, 06800, Çankaya, Ankara, Turkey.
| | - Muhammed Bahaddin Durak
- Department of Gastroenterology, Ankara City Hospital, University of Health Sciences, Bilkent Avenue, 06800, Çankaya, Ankara, Turkey
| | - Ali Atay
- Department of Gastroenterology, Ankara City Hospital, University of Health Sciences, Bilkent Avenue, 06800, Çankaya, Ankara, Turkey
| | - Batuhan Başpınar
- Department of Gastroenterology, Ankara City Hospital, University of Health Sciences, Bilkent Avenue, 06800, Çankaya, Ankara, Turkey
| | - Çağdaş Erdoğan
- Department of Gastroenterology, Ankara City Hospital, University of Health Sciences, Bilkent Avenue, 06800, Çankaya, Ankara, Turkey
| |
Collapse
|
5
|
Ozdemir B, Atay A, Kayhan MA, Ozin YO, Gokce DT, Altunsoy A, Guner R. Tissue quantitative RT-PCR test for diagnostic significance of cytomegalovirus infection in patients with inflammatory bowel disease and treatment response: Cytomegalovirus infection in patients with inflammatory bowel disease. Medicine (Baltimore) 2023; 102:e34463. [PMID: 37543790 PMCID: PMC10402982 DOI: 10.1097/md.0000000000034463] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
Abstract
Cytomegalovirus (CMV) is an opportunistic pathogen that exacerbates inflammatory bowel disease (IBD). There are no clear diagnostic criteria for CMV infection in IBD patients. The aim of this study was to evaluate the importance of the diagnosis of CMV infection with CMV-DNA polymerase chain reaction (PCR) in the colonic mucosa and the response to antiviral treatment. We retrospectively analyzed the clinical data of 30 patients with IBD (24 men, 6 women; median age: 42 years) who were hospitalized because of IBD exacerbation and whose samples were assessed by tissue CMV-DNA PCR positivity. Most of the IBD patients had ulcerative colitis (90%). The CMV-DNA PCR median value was 8848 copies/mL of tissue (range 90-242,936 copies/mL). Blood CMV-DNA PCR was found to be positive in a small group (33.3%, 10/30) of tissue CMV-DNA PCR-positive cases. immunohistochemistry tests were positive in only 5 of the 23 patients positive for CMV-DNA PCR in the colonic mucosa, and high remission (25/30, 83.3%) was detected with antiviral therapy. Recurrence of CMV colitis infection was observed in 9 of 25 patients who had remission with antiviral therapy. The tissue CMV-DNA PCR test was found to be more useful than blood CMV-DNA PCR and immunohistochemistry tests for diagnosing CMV colitis, and the tissue CMV-DNA PCR test enabled rapid and appropriate treatment.
Collapse
Affiliation(s)
- Burcu Ozdemir
- Department of Infectious Diseases and Clinical Microbiology Clinic, Ankara City Hospital, Ankara, Turkey
| | - Ali Atay
- Department of Gastroenterology, Ankara City Hospital, Ankara, Turkey
| | | | | | | | - Adalet Altunsoy
- Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Rahmet Guner
- Department of Infectious Diseases and Clinical Microbiology Clinic, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, Turkey
| |
Collapse
|
6
|
Atay A, Karahan F, Gunes O, Gunay S, Dilek ON. From dyspepsia to complicated peptic ulcer: new markers in diagnosis and prognosis. Eur Rev Med Pharmacol Sci 2023; 27:1352-1359. [PMID: 36876674 DOI: 10.26355/eurrev_202302_31370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
OBJECTIVE Peptic ulcer disease (PUD) may present with different clinical findings, ranging from mild dyspeptic complaints to mortal complications, such as gastrointestinal system perforation. The aim of this study was to investigate the potential blood parameters that can be used in the diagnosis of PUD and prediction of complications. PATIENTS AND METHODS A total of 80 patients with dyspeptic complaints, 83 patients with PUD, and 108 patients with peptic ulcer perforation (PUP) who were treated in our hospital between January 2017 and December 2020 were included in the study. Clinical findings, laboratory data, and imaging methods were reviewed retrospectively. RESULTS The mean age of 271 (154 men, 117 women) patients included in the study was 56.04 ± 17.98 (mean ± standard deviation) years. The neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), mean platelet volume, white blood cell, C-reactive protein, and neutrophil values were higher in patients with PUP compared to other groups (p < 0.001 for all). In the PUD group, only red blood cell distribution width was significantly higher compared to the patient group with dyspeptic complaints. In the postoperative period, NLR and PLR were significantly higher in patients who developed severe complications according to the Clavien-Dindo classification compared to patients who developed mild complications. CONCLUSIONS This study showed that simple blood parameters can be used as diagnostic markers at different stages of PUD. NLR and PLR can be helpful in the diagnosis of PUP and red blood cell distribution width can be used to differentiate patients with peptic ulcer from dyspeptic patients. Additionally, NLR and PLR can be used to predict serious postoperative complications after PUP surgery.
Collapse
Affiliation(s)
- A Atay
- Department of General Surgery, Department of Gastroenterology, Izmir Katip Celebi University Atatürk Training and Research Hospital, Izmir, Turkey.
| | | | | | | | | |
Collapse
|
7
|
Gunes O, Akbulut S, Atay A, Gonultas F, Tuncer A, Baskiran A, Yilmaz S. Vessel sealing system vs. conventional knot-tying for hilar dissection during living donor hepatectomy: a prospective, randomized, double-blinded study. Eur Rev Med Pharmacol Sci 2022; 26:6990-6994. [PMID: 36263546 DOI: 10.26355/eurrev_202210_29882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE LT has become the gold standard treatment for many liver diseases, especially chronic liver disease. A commonly seen problem, even in donors who do not develop any major complications after living donor hepatectomy (LDH), is the persistent drainage of lymphatic fluid from the hepatectomy site drain, which causes extensive hospitalization and consequent loss to the workforce. To our knowledge, no study has yet been published comparing LVSS and conventional knot-tying methods for hilar dissection, which is an important stage of the LDH procedure. We aimed to prospectively compare the outcomes of these two treatment methods. PATIENTS AND METHODS Donor candidates were divided into two groups: conventional suture tying (conventional knot tying group; n=34) and Ligasure vessel sealing system (LVSS; n=34). A simple randomization method of drawing lots was used to assign the patients to each group. The following parameters were analyzed for all patients: age, gender, BMI, duration of surgery, postoperative drainage amounts, drain removal times and complications, length of hospital stay, morbidity, and mortality. RESULTS There were no significant differences in terms of operative times, postoperative drainage levels, hospital stay or drain removal times. CONCLUSIONS In this study, the use of LVSS in LDH was found to be safe, although it did not offer any advantage over conventional methods. Nevertheless, it seems probable that the use of LVSS could reduce operative time and amounts of lymphatic drainage, especially in centers with minimal experience with LDH, such as new LDH centers.
Collapse
Affiliation(s)
- O Gunes
- Department of Surgery, Atatürk Training and Research Hospital, Izmir, Turkey.
| | | | | | | | | | | | | |
Collapse
|
8
|
Baskiran A, Atay A, Baskiran DY, Akbulut S. Hepatitis B/D-Related Hepatocellular Carcinoma. A Clinical Literature Review. J Gastrointest Cancer 2021; 52:1192-1197. [PMID: 34611832 DOI: 10.1007/s12029-021-00714-x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2021] [Indexed: 02/06/2023]
Abstract
AIM Given the current literature data, this article aims to shed light on the epidemiological and clinical effects of HBV, as well as its impact on the development of hepatocellular carcinoma (HCC). METHODS A review of the English language literature based on a MEDLINE (PubMed) database was searched. The keywords were cirrhosis, hepatocellular carcinoma, epidemiology, hepatitis delta virus, hepatitis B virus, and co-infection. All references from retrieved papers were reviewed systematically to find additional collection of reports. RESULTS The study has broadly confirmed the contribution of HDV viremia to liver disease and cirrhosis. However, uncertainty over the mechanism of action on HCC development remains. As the recent data has demonstrated, the HCC-HDV has a unique molecular profile which is distinct from that of HBV-HCC. CONCLUSION Owing to the dependence of HDV on HBV, it is not clear whether HCC is a consequence of the cumulative effect of both HBV and HDV, an effect of the underlying cirrhosis, or a direct oncogenic effect of HDV. Many questions concerning the oncogenic role of HDV remain unanswered. To better understand the role of HDV in carcinogenesis, studies at the molecular level that consider genotype differences should be increased. Multicenter, high-volume, and prospective studies that compare HBV/HDV co-infected and HBV-infected individuals will be pivotal in determining the oncogenic role of HDV.
Collapse
Affiliation(s)
- A Baskiran
- Department of General Surgery, Faculty of Medicine, Inonu University Turgut Ozal Medical Center, Institute of Liver Transplantation, Malatya, Turkey
| | - A Atay
- Department of General Surgery, Izmir Katip Celebi University Atatürk Training and Research Hospital, Izmir, Turkey.
| | - D Y Baskiran
- Department of Public Health, Faculty of Medicine, Inonu University Turgut Ozal Medical Center, Malatya, Turkey
| | - S Akbulut
- Department of General Surgery, Faculty of Medicine, Inonu University Turgut Ozal Medical Center, Institute of Liver Transplantation, Malatya, Turkey
| |
Collapse
|
9
|
Sarbay H, Atay A, Malbora B, Petmezci E, Rezanko TA, Gezginadam Z, Şalvız M, Bakar N, Atay T. Pediatric nasopharyngeal mass: a case report. Leuk Res 2019. [DOI: 10.1016/s0145-2126(19)30387-x] [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: 11/27/2022]
|
10
|
Sarbay H, Atay T, Atay A, Malbora B, Uçar FG, Rezanko TA, Bakar N. Parvovirus B19 induced posterior reversible encephalopathy syndrome in a patient with relapse acute lymphoblastic leukemia. Leuk Res 2019. [DOI: 10.1016/s0145-2126(19)30403-5] [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: 11/16/2022]
|
11
|
|
12
|
Akarcali I, Tugay N, Kaya D, Atay A, Doral MN. The role of high voltage electrical stimulation in the rehabilitation of patellofemoral pain. ACTA ACUST UNITED AC 2013. [DOI: 10.1163/156856902320761397] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
13
|
Arslan K, Said Kokcam S, Koksal H, Turan E, Atay A, Dogru O. Which flap method should be preferred for the treatment of pilonidal sinus? A prospective randomized study. Tech Coloproctol 2013; 18:29-37. [DOI: 10.1007/s10151-013-0982-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Accepted: 01/21/2013] [Indexed: 11/29/2022]
|
14
|
Atay A, Piskin B, Akin H, Sipahi C, Karakas A, Saracli MA. Evaluation of Candida albicans adherence on the surface of various maxillofacial silicone materials. J Mycol Med 2013; 23:27-32. [PMID: 23375858 DOI: 10.1016/j.mycmed.2012.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 12/06/2012] [Accepted: 12/07/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVES Fungal infection resulting from Candida adherence on material surface is one of the most important medical risks for maxillofacial prosthesis wearers. Despite wide usage, there is a sparse data evaluating C. albicans adherence on various commercial maxillofacial silicone materials that have different surface contact angles. The objective of this study was to investigate the relationship between surface contact angle and fungal adherence on widely used maxillofacial silicone materials. MATERIALS AND METHODS Three maxillofacial silicone materials titled VST-50, A-2006, and A-2186F were used for fabrication of disc-shaped specimens. Surface contact angle of specimens were measured by the goniometric method. Adhesion quantity of two different C. albicans strains was evaluated with a colorimetric method using XTT/Coenzyme Q0. The Kruskal-Wallis and Mann-Whitney U tests were used for statistical analysis of data. RESULTS The lowest surface contact angle values with the highest Candida adhesion quantity were measured on the specimens fabricated with A-2006 silicone material. Statistically significant differences were found among three maxillofacial silicone materials in terms of both surface contact angle values and adhesion quantity (P<0.01). CONCLUSION There is a close relationship between surface contact angle and quantity of Candida adherence. However, it should be noted that various factors arising from material properties may affect the complex nature of the Candida adhesion process.
Collapse
Affiliation(s)
- A Atay
- Haydarpasa Training Hospital, Department of Prosthodontics, Istanbul, Turkey.
| | | | | | | | | | | |
Collapse
|
15
|
Abstract
BACKGROUND Chronic anal fissure is diagnosed in the presence of persistent symptoms: The classic triad includes a linear mucosal tear exposing the internal sphincter fibers, hypertrophied anal papilla, and a sentinel skin tag. Thus, chronic anal fissure can be divided into three components: the fissure itself; hypertrophied anal papilla; the sentinel skin tag. Not every chronic anal fissure has all three components; some have two components, and others present with only a persistent fissure. The success rate of medical treatment for chronic anal fissure is reported as 42-86 %. In this study, we intended to observe the effect of said components on healing with isosorbide dinitrate treatment. METHODS A total of 105 patients with chronic anal fissures were admitted and were divided into three groups. Patients in group I had a single component (only the fissure with a linear mucosal tear exposing the internal sphincter fibers); group II had two components (skin tag or hypertrophied papilla in addition to the fissure); group III had all three components (fissure, skin tag, hypertrophied papilla). Isosorbide dinitrate 0.25 % was applied three times a day. RESULTS The success rates in the study groups were 93, 74, and 64 %, respectively. The success rate was significantly higher for group I than for groups II and III. CONCLUSIONS Chronic anal fissure components should be considered when evaluating the success rates of studies reporting the results of various medical treatments. The number of components seems to be an important factor that affects the results of isosorbide dinitrate treatment.
Collapse
Affiliation(s)
- K Arslan
- Department of General Surgery, Konya Training and Research Hospital, Konya 42100, Turkey.
| | | | | | | | | | | |
Collapse
|
16
|
Koseoglu M, Isleten F, Atay A, Kaplan YC. Effects of acute and subacute garlic supplement administration on serum total antioxidant capacity and lipid parameters in healthy volunteers. Phytother Res 2009; 24:374-8. [DOI: 10.1002/ptr.2953] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
17
|
Adanir T, Sencan A, Aksun M, Atay A, Aran G, Karahan N. Safety of percutaneous tracheotomy in patients with cricoid cartilage not identified: report of 122 cases. Crit Care 2009. [PMCID: PMC4083904 DOI: 10.1186/cc7182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
18
|
Ozen J, Atay A, Beydemir B, Serdar MA, Ural AU, Dalkiz M, Soysal Y. In vitro IL-1beta release from gingival fibroblasts in response to pure metals, dental alloys and ceramic. J Oral Rehabil 2005; 32:511-7. [PMID: 15975131 DOI: 10.1111/j.1365-2842.2005.01457.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Little information is available on the immunological basis for side-effects of dental materials. The objective of this study is to evaluate effects of pure metals, dental alloys and ceramic on cell viability and interleukin-1 beta (IL-1beta) release in three-dimensional human gingival fibroblast cultures as an indicator of their biological performance in gingival tissues. The gingival fibroblast cultures were exposed to test specimens fabricated from nickel, iron, molybdenum, copper, indium, gold, Ni-Cr-Mo alloy (Remanium CS), Au-Pt-In alloy (Pontostar) and a dental ceramic (In-ceram). Cell viability was determined by the MTT method 24 and 48 h after exposure. Assays for IL-1beta were carried out by ELISA. Statistical analysis was performed applying the non-parametric Mann-Whitney pairwise test. Dental ceramic and gold did not influence cell viability after 24 and 48 h. Cell viability was determined after 24 and 48 h to nickel (79-77%), iron (92-90%), molybdenum (86-83%), copper (48-36%), indium (90-90%), Remanium CS (83-80%), Pontostar (94-91%) compared with control cultures. Dental ceramic, Pontostar and gold had no significant influence on IL-1beta secretion. The highest amounts of IL-1beta (10-fold) levels were determined in cell cultures exposed to copper. Indium, molybdenum and iron induced twofold IL-1beta levels compared with untreated control cultures. These results support that some metals may alter immune responses and thereby contribute to a variety of dental pathological conditions and three-dimensional cell culture models for gingival fibroblasts appear to be suitable for in vitro studies.
Collapse
Affiliation(s)
- J Ozen
- Department of Prosthetic Dentistry, Gülhane Military Medical Academy, Ankara, Turkey.
| | | | | | | | | | | | | |
Collapse
|
19
|
Yildirim H, Adanir T, Atay A, Katircioğlu K, Savaci S. The effects of sevoflurane, isoflurane and desflurane on QT interval of the ECG. Eur J Anaesthesiol 2004; 21:566-70. [PMID: 15318470 DOI: 10.1017/s0265021504007112] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE To determine if there is any significant difference between the effects of desflurane, isoflurane and sevoflurane on the QT interval, QT dispersion, heart rate corrected QT interval and QTc dispersion of the electrocardiogram. METHODS The study was conducted in a prospective, double blind and randomized manner in a teaching hospital. Ninety ASA I patients, aged 16-50 yr, undergoing general anaesthesia for noncardiac surgery were studied. RESULTS There was no significant change in QT intervals during the study in any group (P > 0.05). QT dispersion in the sevoflurane group 49+/-14 ms vs. 37+/-10 ms; in the desflurane group 55+/-16 and 62+/-21 ms vs. 35+/-14 ms and in the isoflurane group 54+/-26 and 59+/-24 ms vs. 42+/-19 ms were significantly increased at 3 and 10 min after 1 MAC of steady end-tidal anaesthetic concentration compared with baseline values (P < 0.05). QTc values in the sevoflurane group were 444+/-24 and 435+/-2 1ms vs. 413+/-19 ms (P < 0.05), in the isoflurane group were 450+/-26 and 455+/-34 ms vs. 416+/-34 ms (P < 0.05), in the desflurane group were 450+/-26 and 455+/-34 ms vs. 416+/-34 ms (P < 0.05) at 3 and 10 min after reaching 1 MAC of anaesthetic concentration and significantly increased compared with baseline values. QTc dispersion increased significantly with sevoflurane 62+/-14 ms vs. 45+/-16 ms (P < 0.05); isoflurane 70+/-36 ms at 3 min and 75+/-36 ms at 10 min after reaching 1 MAC of anaesthetic concentration vs. 50+/-24 ms (P < 0.05); desflurane 67+/-25 ms at 3 min and 74+/-27 ms at 10 min after 1 MAC concentration vs. 41+/-22 ms (P < 0.05). CONCLUSION Sevoflurane, isoflurane and desflurane all prolonged QTd, QTc and QTcd but there were no significant intergroup differences.
Collapse
Affiliation(s)
- H Yildirim
- Atatürk Teaching Hospital, Department of Anaesthesiology, Izmir, Turkey.
| | | | | | | | | |
Collapse
|
20
|
Leblebicioglu G, Atay A, Doral MN, Dogan R, Yilmaz M. Neurilemoma of the tibial nerve causing intermittent claudication. Case report. Am J Knee Surg 2002; 14:181-3. [PMID: 11491430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- G Leblebicioglu
- Department of Orthopedic Surgery and Traumatology, University of Hacettepe Medical School, Sihhiye, Ankara, Turkey
| | | | | | | | | |
Collapse
|
21
|
Ýyilikçi L, Eyigör C, Atay A, Evliya Ü, Koroðlu N, Çelik M, Günerli A. Evaluation of the infections due to central venous catheters in intensive care unit patients. Crit Care 1999. [PMCID: PMC3301761 DOI: 10.1186/cc433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|