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Koc S, Aktas A, Sahin B, Ozer H, Zararsiz GE. Protective effect of ursodeoxycholic acid and resveratrol against tacrolimus induced hepatotoxicity. Biotech Histochem 2023; 98:471-478. [PMID: 37381715 DOI: 10.1080/10520295.2023.2228697] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023] Open
Abstract
Tacrolimus (TAC) is a potent and well-tolerated immunosuppressive drug, but serious side effects including nephrotoxicity and hepatotoxicity have been reported. Ursodeoxycholic acid (UDCA) and resveratrol (RSV) exhibit hepatoprotective effects in liver diseases. We investigated the hepatoprotective effect of UDCA and RSV against TAC induced hepatotoxicity. We divided 40 male rats into five equal groups: A) control group, B) TAC group, C) TAC + UDCA group, D) TAC + RSV group, E) TAC + UDCA + RSV group. We administered 0.5 mg/kg TAC once daily, 25 mg/kg UDCA twice daily and 10 mg/kg RSV once daily. The drugs in the experimental groups were given by gavage from the first day of the study and continued for 21 days. Histopathologic and biochemical analyses were performed on day 22. In group B, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), tumor necrosis factor-alpha (TNF), interleukin-1 (IL-1), interleukin-6 (IL-6), total oxidative status (TOS) and malondialdehyde (MDA) levels were higher compared to group A, and catalase (CAT), superoxide dismutase (SOD) levels and total antioxidant status (TAS) were lower compared to group A. Severe cellular swelling, degeneration and focal necrosis were more evident in group B than in groups C-E. Histopathological improvement was observed in groups C-E, where UDCA and RSV were combined, compared to group B. We found that UDCA and RSV, together or separately, protected the liver against oxidative stress damage caused by TAC.
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Affiliation(s)
- Suleyman Koc
- Department of General Surgery, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ahmet Aktas
- Department of İnternal Medicine, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Bilal Sahin
- Department of Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Hatice Ozer
- Department of Pathology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Gozde Erturk Zararsiz
- Department of Biostatistics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Ciltas AC, Karabulut S, Sahin B, Filiz AK, Yulak F, Ozkaraca M, Karatas O, Cetin A. FGF-18 alleviates memory impairments and neuropathological changes in a rat model of Alzheimer's disease. Neuropeptides 2023; 101:102367. [PMID: 37506425 DOI: 10.1016/j.npep.2023.102367] [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: 05/08/2023] [Revised: 07/06/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023]
Abstract
Alzheimer's disease (AD) is a multifactorial pathology marked by amyloid beta (Aβ) accumulation, tau hyperphosphorylation, and progressive cognitive decline. Previous studies show that fibroblast growth factor 18 (FGF18) exerts a neuroprotective effect in experimental models of neurodegeneration; however, how it affects AD pathology remains unknown. This study aimed to ascertain the impact of FGF18 on the behavioral and neuropathological changes in the rat model of sporadic AD induced by intracerebroventricular (ICV) injection of streptozotocin (STZ). The rats were treated with FGF18 (0.94 and 1.88 pmol, ICV) on the 15th day after STZ injection. Their cognitive function was assessed in the Morris water maze and passive avoidance tests for 5 days from the 16th to the 21st days. Aβ levels and histological signs of neurotoxicity were detected using the enzyme-linked immunosorbent assay (ELISA) assay and histopathological analysis of the brain, respectively. FGF18 mildly ameliorated the STZ-induced cognitive impairment; the Aβ accumulation was reduced; and the neuronal damage including pyknosis and apoptosis was alleviated in the rat brain. This study highlights the promising therapeutic potential for FGF18 in managing AD.
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Affiliation(s)
- Arzuhan Cetindag Ciltas
- Department of Medical Services and Techniques, Vocational School of Health Services, Sivas Cumhuriyet University, Sivas, Turkey
| | - Sebahattin Karabulut
- Department of Medical Services and Techniques, Vocational School of Health Services, Sivas Cumhuriyet University, Sivas, Turkey.
| | - Bilal Sahin
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ahmet Kemal Filiz
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Fatih Yulak
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Mustafa Ozkaraca
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ozhan Karatas
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Ali Cetin
- Department of Obstetrics and Gynecology, Haseki Training and Research Hospital affiliated with the University of Health Sciences, Istanbul, Turkey
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Bayram E, Sahin B. Awareness and obscurity: demystifying genomic profiling in real-world practice for the members of the Turkish Society of Medical Oncology (TSMO). Eur Rev Med Pharmacol Sci 2023; 27:4145-4152. [PMID: 37203840 DOI: 10.26355/eurrev_202305_32323] [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: 05/20/2023]
Abstract
OBJECTIVE Molecular testing in oncology practice is increasingly being used to offer more relevant therapies to cancer patients. Our study aims to determine the real-world impact of routine incorporation of molecular testing among the Turkish Oncology community across all types of cancer and identify gaps for the first time. SUBJECTS AND METHODS This research was conducted in Turkey among medical oncologists from different backgrounds. The survey attendance was entirely voluntary. A questionnaire with twelve items (multiple choice +/- closed-ended) was utilized in this study to assess the effect of molecular tests in real clinical situations. RESULTS 102 oncologists with various levels of experience participated in this study. Most of the respondents (97%) reported successful implementation of molecular testing. About 10% of the participating oncologists said they preferred genetic tests at the early stages of cancer, compared to the majority who preferred genetic tests at the terminal stage. Molecular tests are often performed in separate locations and 47% of the oncologists were using a targeted panel specific to the type of malignancy. CONCLUSIONS Several informational difficulties must be resolved in order to have early personalized therapy as the standard treatment. We need accessible, comprehensive, and regularly updated databases to compare genetic profiling and its therapeutic implications. We also need to continue educating patients and physicians.
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Affiliation(s)
- E Bayram
- Department of Medical Oncology, Faculty of Medicine, Cukurova University, Adana, Turkey.
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Bayram E, Sahin B, Koseci T, Bisgin A. 927P Awareness & obscurity: Demystifying genomic profiling in real-world practice for the members of Turkish Society of Medical Oncology (TSMO). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1052] [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: 11/30/2022] Open
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Sahin B, Karabulut S, Filiz AK, Özkaraca M, Gezer A, Akpulat HA, Ataseven H. Galium aparine L. protects against acetaminophen-induced hepatotoxicity in rats. Chem Biol Interact 2022; 366:110119. [PMID: 36029804 DOI: 10.1016/j.cbi.2022.110119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/22/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 11/25/2022]
Abstract
The toxicity of acetaminophen (N-acetyl-para-aminophenol (APAP)) is the most frequent cause of drug-induced liver damage. Galium aparine L. (GA) is traditionally used to treat jaundice. We aimed to investigate the hepatoprotective potential of GA in the APAP-induced hepatic encephalopathy (HE) rat model. Qualitative phytochemical characterization of GA was performed by LC/Q-TOF/MS analysis. Wistar rats were pretreated with GA (250 and 500 mg/kg b.wt. per oral) for five days. On the 6th day, the rats were exposed to APAP (1500 mg/kg b.wt. oral gavage) and behavioral tests (open field and passive avoidance tests) were applied on the 7th and 8th days. The animals were killed, and biochemical and histopathological parameters were assessed in blood and hepatic specimens. GA pretreated rats exhibited a significant reduction in APAP-induced liver damage, evidenced by the reduction in liver necrosis and alanine aminotransferase (ALT), aspartate aminotransferase (AST), and bilirubin (BIL). GA demonstrated an anxiolytic effect, as seen in the acquisition trial and grooming behavior. The short-term memory performances of animals were not changed in all groups, suggesting that APAP intoxication did not affect hippocampal function. These results show that GA extract markedly exerts hepatoprotective activity, while its effect on hepatic encephalopathy was limited.
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Affiliation(s)
- Bilal Sahin
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Sebahattin Karabulut
- Department of Medical Services and Techniques, Vocational School of Health Services, Sivas Cumhuriyet University, Sivas, Turkey.
| | - Ahmet Kemal Filiz
- Department of Medical Physiology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Mustafa Özkaraca
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Arzu Gezer
- Department of Health Care Services, Vocational School of Health Services, Atatürk University, Erzurum, Turkey
| | | | - Hilmi Ataseven
- Department of Internal Medicine, Discipline of Gastroenterology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
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Szekanecz Z, Charles-Schoeman C, Vranic I, Sahin B, Paciga SA, Wang Z, Hyde C, Martin D, Weitz JI. OP0269 BIOMARKERS TO PREDICT RISK OF VENOUS THROMBOEMBOLISM IN PATIENTS WITH RHEUMATOID ARTHRITIS RECEIVING TOFACITINIB OR TUMOUR NECROSIS FACTOR INHIBITORS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.787] [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: 11/04/2022]
Abstract
BackgroundIn the ORAL Surveillance study of patients (pts) aged ≥50 yrs with moderate to severe rheumatoid arthritis (RA) and ≥1 additional cardiovascular risk factor (NCT02092467), the incidence of pulmonary embolism was higher with tofacitinib than with tumour necrosis factor inhibitors (TNFi).1ObjectivesTo explore whether biomarkers explained the associations of tofacitinib vs TNFi with venous thromboembolism (VTE) in ORAL Surveillance.MethodsORAL Surveillance was a prospective, open-label, event-driven, noninferiority, post-authorisation safety study. Pts were randomised 1:1:1 to receive tofacitinib 5 or 10 mg twice daily or a TNFi (adalimumab 40 mg every 2 weeks or etanercept 50 mg once weekly). For this exploratory post hoc analysis, 294 soluble, proteomic, genetic and antibody biomarkers were assessed (of which 79 have a known role in inflammation, coagulation, vascular biology and/or Janus kinase signalling). Biomarkers were quantified in serum collected at baseline (BL) and Month (M)12 in VTE cases and 4:1 matched controls. D-dimer was analysed with a larger control group (all eligible pts without VTE) and final adjudicated data from BL, M12 and study end.ResultsOf the 4362 randomised and treated pts, D-dimer was quantified in 3732 pts (54 with VTE; 3678 without) and the remaining biomarkers were analysed in 285 pts (57 VTE cases; 228 matched controls). BL characteristics were generally similar in those with or without VTE and between treatment groups. At BL, D-dimer levels were ≥2×upper limit of normal for ~50% of controls and 67% of VTE cases. Mean D-dimer levels decreased from BL to M12 in controls across treatment groups (Figure 1). Key findings from the biomarker analyses are shown in the Table 1. No biomarker showed a clear mechanistic association with the increased risk of VTE for tofacitinib vs TNFi, or demonstrated adequate performance for prognostic use in pts with RA.Table 1.Summary of results from biomarker analysesBiomarkerKey resultsTier 1C-reactive protein•No association with VTE in any treatment arm at BL or M12D-dimer Thrombopoietin•Higher M12 levels were prospectively associated with greater risk of subsequent VTE with tofacitinib 10 mg BID ◦ For D-dimer, the same effect was observed with tofacitinib 5 mg BID •Treatment specificity of effects could not be establishedTier 2Factor VIII Thrombin–antithrombin complex Tissue factor pathway inhibitor Plasminogen activator inhibitor-1 Protein C Antithrombin Apolipoprotein C-III Leptin•No clinically meaningful differences across treatment armsTiers 3 & 4Exploratory proteomic assays (276 markers from multiplex panels)•Two biomarkers with no known relationship to VTE (angiogenin and TNFSF13B) showed significant associations with pulmonary embolism in the tofacitinib 10 mg BID arm ◦ Treatment specificity of effects could not be established for either analyteGenetic biomarkersFactor V Leiden R506Q, prothrombin G20210A and JAK2 V617F mutations•Factor V Leiden and prothrombin risk alleles, individually or combined, were associated with increased incidence of VTE but did not explain excess events with tofacitinib •No VTE cases or matched controls had the JAK2 mutationAntibody biomarkersACA IgG and IgM, anti-β2GP1 IgG and IgM•No statistical differences were observed between treatment arms or between VTE cases and matched controlsACA, anticardiolipin antibody; β2GP1, beta-2-glycoprotein 1; IgG, immunoglobulin G; IgM, immunoglobulin M; JAK2, Janus kinase 2; TNFSF13B, tumour necrosis factor ligand superfamily member 13BConclusionThis post hoc exploratory analysis did not identify biomarkers at BL or M12 that explain the increased VTE risk for tofacitinib vs TNFi. Notably, ORAL Surveillance was neither designed nor powered to compare the risk of VTE across treatments or to identify biomarkers with a mechanistic relationship to VTE. Individual VTE risk should be considered when making decisions about initiation or maintenance of tofacitinib treatment.References[1]Ytterberg et al. N Engl J Med 2022; 386: 316-326.AcknowledgementsStudy sponsored by Pfizer Inc. Medical writing support was provided by Julia King, CMC Connect, and funded by Pfizer Inc.Disclosure of InterestsZoltán Szekanecz Speakers bureau: AbbVie, Eli Lilly, Novartis, Pfizer Inc, Roche and Sanofi, Paid instructor for: AbbVie, Eli Lilly, Gedeon Richter, Novartis, Pfizer Inc and Roche, Consultant of: AbbVie, Eli Lilly, Novartis, Pfizer Inc, Roche and Sanofi, Grant/research support from: Pfizer Inc, Christina Charles-Schoeman Consultant of: AbbVie, Gilead Sciences, Pfizer Inc and Sanofi-Regeneron, Grant/research support from: AbbVie, Bristol-Myers Squibb and Pfizer Inc, Ivana Vranic Shareholder of: Pfizer Inc, Employee of: Pfizer Ltd, Burak Sahin Shareholder of: Pfizer Inc, Employee of: Pfizer Inc, Sara A Paciga Shareholder of: Pfizer Inc, Employee of: Pfizer Inc, Zhenyu Wang Shareholder of: Pfizer Inc, Employee of: Pfizer Inc, Craig Hyde Shareholder of: Pfizer Inc, Employee of: Pfizer Inc, David Martin Shareholder of: Pfizer Inc, Employee of: Pfizer Inc, Jeffrey I Weitz Speakers bureau: Anthos, Bayer AG, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, Ionis, Janssen, Novartis, Pfizer Inc, PhaseBio, Portola and Servier Pharmaceuticals, Grant/research support from: Bayer AG and Boehringer Ingelheim
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Baspinar SN, Durucan I, Yuzbasioglu MB, Yenigun S, Ayla AY, Alkan A, Ayalti T, Demirkol F, Sahin B, Alizade S, Ozdogan H, Ugurlu S. AB1323 THE MYSTERY OF FAMILIAL MEDITERRANEAN FEVER: IS THERE ANY FACTOR TRIGGERING THE ATTACKS? Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.5180] [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: 11/04/2022]
Abstract
BackgroundFamilial Mediterranean Fever (FMF) is an autoinflammatory disease characterized by recurrent episodes of fever and serositis. Although it is known that the attack frequency differs among patients carrying different mutant genotypes [1], whether physical and environmental factors play a role in triggering attacks or whether they have an influence on timing of attacks remains to be elucidated.ObjectivesWe aimed to identify different conditions causing flare-ups in FMF course and to investigate if there is a significant difference between patients carrying distinct mutations, regarding the distribution of the factors mentioned.MethodsTwo hundred patients were randomly selected among individuals who were routinely followed-up with FMF diagnosis in our centre. Individuals carrying only a variant of unknown significance or polymorphism such as R202Q, according to Infevers database, were excluded in order to gather a cohort consisting of patients with definite FMF. An inquiry was made based upon triggering factors determined by the patients themselves. The patients were classified into subgroups by their sex and mutation genotype. Since M694V variant is responsible for pronounced FMF course [2], we sorted the patients according to their status for M694V mutant allele. Group A included patients carrying M694V homozygously. Group B included patients carrying at least one M694V mutant allele whereas Group C consisted of patients who were non-M694V carriers. Chi-square test was performed to assess distribution of the trigger factors in terms of establishing its significance.ResultsDetailed distribution of trigger factors is shown in Table 1. 144 out of 200 patients described a culprit condition. Patients usually stated more than one factor, however some patients reported only one. The most-reported trigger factors by the cohort are summarized as following: 76 emotional stress (38%), 60 menstruation (30%), 40 cold exposure (20%), 34 fatigue (17%), 13 seasonal changes (6.5%). The distribution of trigger factors between Group A, B, and C were non-significant (p=0.88).Table 1.The distribution of triggering factors in subgroups.GroupTotal(%)Reported trigger factor (%)Mens- truation(%)Emotionalstress(%)Cold exposure(%)Fatigue(%)Seasonalchanges(%)Others(%)Female12397 (78.8)60 (48.8)47 (38.2)24 (19.5)19 (15.4)7 (5.7)6 (4.9)Male7747 (61)-29 (37.7)16 (20.8)15 (19.5)6 (7.8)7 (9.1)Group A6144 (72.1)14 (23)24 (39.3)13 (21.3)12 (19.7)4 (6.6)6 (9.8)Group B165120 (72.7)49 (29.7)66 (40)34 (20.6)29 (17.6)13 (7.9)11 (6.6)Group C3524 (68.6)11 (31.4)10 (28.6)6 (17.1)5 (14.3)01 (2.8)Group A: M694V homozygous patients, Group B: patients with at least one M694V allele, Group C: non-M694V carriersConclusionWe concluded that trigger factors did not vary between distinct mutant genotypes. Although emotional stress is the most reported trigger factor by the participants, one should bear in mind that emotional stress influences most chronic diseases negatively. We also observed that menstruation overtly triggers an FMF attack. Additionally, cold exposure should be considered as a notable trigger factor. It is still unclear what triggers an FMF attack in 28% of the patients, remains a mystery.References[1]Grossman C, Kassel Y, Livneh A, Ben-Zvi I. Familial Mediterranean fever (FMF) phenotype in patients homozygous to the MEFV M694V mutation. Eur J Med Genet. 2019 Jun;62(6):103532. doi: 10.1016/j.ejmg.2018.08.013.[2]Egeli BH, Ugurlu S. Familial Mediterranean Fever: Clinical State Of The Art. QJM. 2020 Oct 20:hcaa291. doi: 10.1093/qjmed/hcaa291.Disclosure of InterestsNone declared
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Zheng B, Keen K, Fritzler M, Ryerson C, Wilcox P, Whalen B, Sahin B, Hou H, Latham P, Zhang MF, Yao I, Dunne J. POS0869 CYTOKINES IN SYSTEMIC SCLEROSIS RELATED INTERSTITIAL LUNG DISEASE AND IDIOPATHIC PULMONARY FIBROSIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1905] [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: 11/03/2022]
Abstract
BackgroundImmune pathways have been implicated in both systemic sclerosis (SSc)-related interstitial lung disease (ILD) and idiopathic pulmonary fibrosis (IPF). Determination of blood cytokine differences in these two disorders need to be elucidated to better understand potential biological processes and common pathogenic pathways.ObjectivesThis study compared 87 circulating cytokine levels amongst healthy controls and both SSc-ILD and IPF. There was also exploration of the association between cytokine levels and disease progression based on the annualized rate of decline of forced vital capacity (FVC) and diffusing capacity for carbon monoxide (DLCO).MethodsLevels of 87 plasma cytokines were measured using commercial panels for consecutive SSc-ILD, IPF, and healthy individuals recruited at a Canadian tertiary-care center. Pulmonary function tests were performed as clinically indicated every 3-12 months. Cytokine levels are compared using the Wilcoxon rank sum test for two samples pairwise. The association between differentially expressed cytokines with both percent predicted annualized FVC and DLCO change was assessed within each disease group using multiple linear models adjusted for age, sex, baseline FVC, and immunosuppressive or anti-fibrotic treatment at sampling. Correction for multiplicity of testing was by Holm’s method.ResultsThere were 19 healthy controls, 40 SSc-ILD, and 17 IPF participants with clinical features shown in Table 1. Eotaxin-1 and interleukin 6 (IL-6) were significantly elevated in both SSc-ILD and IPF compared to healthy controls (Figure 1). SSc-ILD had significantly lower soluble epidermal growth factor receptor (sEGFR) and higher levels of both soluble tumor necrosis factor receptor type II (sTNFRII) and soluble vascular endothelial growth factor receptor-1 (sVEGFR1) compared to healthy controls. IPF cases were distinguished from healthy controls by significantly higher monocyte chemoattractant protein-1 (MCP-1) and monokine induced by gamma interferon (MIG, also known as CXCL9) levels. No significant association was found for any of the cytokines with ILD progression based on annualized rates of either FVC or DLCO change.Table 1.Baseline patient characteristics stratified by disease groupsHealthy control(n = 19)SSc-ILD(n = 40)IPF(n = 17)Age, year51 ± 1956 ± 1273 ± 7Male, count (%)6 (32)12 (30)12 (71)Disease duration, yearNA6.41 (7.81)1.76 (2.14)Ever smoker, count (%)2 (11)19 (48)14 (82)•4 (82)oker0.4 [0, 1]11 [4, 29]19 [11, 35]Treatment presence, count (%)NA16 (40)7 (41)Baseline FVC %NA80 ± 2285 ± 21Baseline DLCO %NA51 ± 1749 ± 11Annualized FVC % changeNA-1.7 ± 8.2-6.2 ± 13.6Annualized DLCO % changeNA-0.5 ± 6.2-7.8 ± 18.6The number (%), mean ± standard deviation, and median [interquartile range] are shown. Disease duration is defined as time of ILD first seen on HRCT in IPF and time from first non-Raynaud’s phenomenon in SSc-ILD. Treatment includes presence of ILD therapies: nintedanib, pirfenidone, mycophenolate mofetil, azathioprine, rituximab. FVC = forced vital capacity, DLCO = diffusing capacity for carbon monoxideFigure 1.Notched box plots of cytokine differences between disease groups. All cytokine levels are shown on a log scale. Overlap of notches indicates lack of a statistically significant difference in medians in a pairwise comparison. P-values are for SSc-ILD or IPF compared to healthy controls using Wilcoxon rank sum two-sample test corrected for multiple testing using Holms method.ConclusionDifferences in seven circulating cytokines between healthy controls with both SSc-ILD and IPF show evidence of systemic cytokine activation. All seven cytokines have a role in immune cell extravasation and pro-fibrotic signaling, which provides further evidence of immune pathways involved in pulmonary fibrosis. Further studies will be pursued of longitudinal change of these biomarkers for halting or slowing disease progression and improving response to treatment.Disclosure of InterestsBoyang Zheng: None declared, Kevin Keen Grant/research support from: Merck Canada Inc, Marvin Fritzler Shareholder of: Abbott Laboratories; Roche Holdings; Abcellera; Moderna, Speakers bureau: For diagnostic company: Werfen, Consultant of: For diagnostic company: Werfen; Aesku, Employee of: Medical Director of Mitogen Diagnostics, Christopher Ryerson Speakers bureau: Boehringer Ingelheim, Hoffmann-La Roche, Consultant of: Boehringer Ingelheim, Hoffmann-La Roche, Veracyte, Astra Zeneca, Grant/research support from: Boehringer Ingelheim, Hoffmann-La Roche, Pearce Wilcox Speakers bureau: Vertex, Valeo, Boehringer, Beth Whalen: None declared, Basak Sahin: None declared, Haiyan Hou Employee of: Mitogen Diagnostics, Penny Latham Employee of: Eve technologies, Mei Feng Zhang Employee of: Mitogen diagnostics, Iris Yao: None declared, James Dunne: None declared
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Sahin B, Gunes H, Ozturk A. Investigation of the mechanisms involved in anticancer effect of glucosamine sulfate on SH-SY5Y cell line. BRATISL MED J 2022; 123:366-371. [PMID: 35420883 DOI: 10.4149/bll_2022_058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/08/2022]
Abstract
AIM Glucosamine derivatives have been found to have anticancer effects in many cancer cell lines in previous investigations. The effect of glucosamine sulfate on neuroblastoma, however, is uncertain. The potential cytotoxic effects of glucosamine sulfate on the SH-SY5Y cell line were investigated in this study. The underlying mechanisms of this cytotoxicity have also been studied. MATERIAL AND METHODS In this study, the SH-SY5Y cell lines were used. The cells were treated with various concentrations of glucosamine sulfate (0.3125, 0.625, 1.25 and 2.5 μg/mL) and the viability of the cells was determined using the XTT assay after 24 hours. The quantities of cleaved PARP, BCL-2, 8-Hydroxy-desoxyguanosine (8-oxo-dG), cleaved caspase 3, Bax, total oxidant, and total antioxidant in the cells were determined by ELISA kits. RESULTS At doses of 0.3125, 0.625, 1.25 and 2.5 μg/mL, glucosamine sulfate dramatically reduced cell viability in SH-SY5Y cells (p<0.001). ELISA tests demonstrated that 1.25 μg/mL glucosamine sulfate considerably increased the amounts of 8-oxo-dG, cleaved caspase 3, Bax, cleaved PARP and total oxidant. However, 1.25 μg/mL glucosamine sulfate treatment did not change the quantity of BCL-2 protein. CONCLUSIONS Altogether, glucosamine sulfate produced considerable cytotoxicity in SH-SY5Y cells by triggering oxidative stress, inducing DNA damage, and finally causing apoptosis. In addition, more research is needed to determine the efficacy of glucosamine sulfate as an anticancer drug in the treatment of neuroblastoma (Fig. 5, Ref. 39).
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Sahin B, Ozdemir E, Gumus E, Ergul M, Taskiran AS. The 5-HT7 receptor antagonist SB-269970 alleviates seizure activity and downregulates hippocampal c-Fos expression in pentylenetetrazole-induced kindled rats. Neurol Res 2022; 44:786-796. [DOI: 10.1080/01616412.2022.2064700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bilal Sahin
- Departments of Physiology, Sivas Cumhuriyet University, School of Medicine, Sivas, Turkey
| | - Ercan Ozdemir
- Departments of Physiology, Sivas Cumhuriyet University, School of Medicine, Sivas, Turkey
| | - Erkan Gumus
- Departments of Histology and Embryology, Aydın Adnan Menderes University, School of Medicine, Aydın, Turkey
| | - Mustafa Ergul
- Departments of Biochemistry, Sivas Cumhuriyet University, School of Pharmacy, Sivas, Turkey
| | - Ahmet Sevki Taskiran
- Departments of Physiology, Sivas Cumhuriyet University, School of Medicine, Sivas, Turkey
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Sahin B, Ergul M. Captopril exhibits protective effects through anti-inflammatory and anti-apoptotic pathways against hydrogen peroxide-induced oxidative stress in C6 glioma cells. Metab Brain Dis 2022; 37:1221-1230. [PMID: 35286533 DOI: 10.1007/s11011-022-00948-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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 03/01/2022] [Indexed: 10/18/2022]
Abstract
Recent studies have shown that angiotensin-converting enzyme (ACE) inhibitors have reduced oxidative damage in the central nervous system (CNS). Accumulating evidence have also demonstrated that captopril, an ACE inhibitor, has protective effects on the CNS. However, its effects on hydrogen peroxide (H2O2)-induced oxidative damage in glial cells and interaction with the inflammatory system are still uncertain. Therefore, this study was aimed to investigate the protective effect of captopril on glial cell damage after H2O2-induced oxidative stress involved in the inflammatory and apoptotic pathways. The control group was without any treatment, and the H2O2 group was treated with 0.5 mM H2O2 for 24 h. The captopril group was treated with various concentrations of captopril for 24 h. The captopril + H2O2 group was pre-treated with captopril for 1 h and then exposed to 0.5 mM H2O2 for 24 h. In the captopril + H2O2 group, captopril at all concentrations significantly increased the cell viability in C6 cells. It also significantly increased the TAS and decreased the TOS levels which are an indicator of oxidative stress. Moreover, captopril significantly reduced the inflammation markers including NF-kB, IL-1 β, COX-1, and COX-2 levels. Flow cytometry results also exhibited that captopril pretreatment significantly decreased the apoptosis rate. Besides, captopril significantly reduced apoptotic Bax and raised anti-apoptotic Bcl-2 protein levels. In conclusion, captopril has protective effects on C6 cells after H2O2-induced oxidative damage by inhibiting oxidative stress, inflammation, and apoptosis. However, further studies need to be conducted to evaluate the potential of captopril as a neuroprotective agent.
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Affiliation(s)
- Bilal Sahin
- Departments of Physiology, School of Medicine, Sivas Cumhuriyet University, TR-58140, Sivas, Turkey.
| | - Mustafa Ergul
- Departments of Biochemistry, School of Pharmacy, Sivas Cumhuriyet University, Sivas, TR-58140, Turkey
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Aybers MN, Sahin B. Nuclear power costs in the build, operate, transfer approach / Die Kosten der Kernenergie beim BOT-Vertragsmodell. KERNTECHNIK 2021. [DOI: 10.1515/kern-1990-550123] [Citation(s) in RCA: 1] [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: 11/15/2022]
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13
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Kocaturk M, Inan OE, Tvarijonaviciute A, Sahin B, Baykal AT, Cansev M, Ceron JJ, Yilmaz Z, Ulus IH. Nasal secretory protein changes following intravenous choline administration in calves with experimentally induced endotoxaemia. Vet Immunol Immunopathol 2021; 233:110197. [PMID: 33550189 DOI: 10.1016/j.vetimm.2021.110197] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 10/22/2022]
Abstract
Nasal secretory fluid proteomes (NSPs) can provide valuable information about the physiopathology and prognosis of respiratory tract diseases. This study aimed to determine changes in NSP by using proteomics in calves treated with lipopolysaccharide (LPS) or LPS + choline. Healthy calves (n = 10) were treated with LPS (2 μg/kg/iv). Five minutes after LPS injection, the calves received a second iv injection with saline (n = 5, LPS + saline group) or saline containing 1 mg/kg choline (n = 5, LPS + choline group). Nasal secretions were collected before (baseline), at 1 h and 24 h after the treatments and analysed using label-free liquid chromatography-tandem mass spectrometry (LCMS/MS). Differentially expressed proteins (>1.2-fold-change) were identified at the different time points in each group. A total of 52 proteins were up- and 46 were downregulated at 1 h and 24 h in the LPS + saline group. The upregulated proteins that showed the highest changes after LPS administration were small ubiquitin-related modifier-3 (SUMO3) and glutathione peroxidase-1 (GPX1), whereas the most downregulated protein was E3 ubiquitin-protein ligase (TRIM17). Treatment with choline reduced the number of upregulated (32 proteins) and downregulated proteins (33 proteins) in the NSPs induced by LPS. It can be concluded that the proteome composition of nasal fluid in calves changes after LPS, reflecting different pathways, such as the activation of the immunological response, oxidative stress, ubiquitin pathway, and SUMOylation. Choline treatment alters the NSP response to LPS.
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Affiliation(s)
- M Kocaturk
- Department of Internal Medicine, Faculty of Veterinary Medicine, Bursa Uludag University, 16059, Bursa, Turkey.
| | - O Eralp Inan
- Medical and Surgical Experimental Animal Practice and Research Center, Eskisehir Osmangazi University, 26480, Eskisehir, Turkey.
| | - A Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia 30100, Spain.
| | - B Sahin
- Acibadem Labmed Research and Development Center, Istanbul, Turkey.
| | - A T Baykal
- Department of Medical Biochemistry, Acibadem University School of Medicine, Istanbul, Turkey.
| | - M Cansev
- Department of Pharmacology, Bursa Uludag University School of Medicine, Bursa, Turkey.
| | - J J Ceron
- Interdisciplinary Laboratory of Clinical Analysis, Interlab-UMU, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Espinardo, Murcia 30100, Spain.
| | - Z Yilmaz
- Department of Internal Medicine, Faculty of Veterinary Medicine, Bursa Uludag University, 16059, Bursa, Turkey.
| | - I H Ulus
- Department of Pharmacology, Acibadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey.
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Taskiran AS, Ergul M, Gunes H, Ozturk A, Sahin B, Ozdemir E. The Effects of Proton Pump Inhibitors (Pantoprazole) on Pentylenetetrazole-Induced Epileptic Seizures in Rats and Neurotoxicity in the SH-SY5Y Human Neuroblastoma Cell Line. Cell Mol Neurobiol 2021; 41:173-183. [PMID: 32862257 DOI: 10.1007/s10571-020-00956-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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] [Received: 07/10/2020] [Accepted: 08/22/2020] [Indexed: 11/08/2022]
Abstract
Recent studies have shown that proton pump inhibitors have positive effects on the nervous system. However, its effect on epileptic seizure and neuronal damage are still unclear. In this study, it was aimed to investigate the effect of pantoprazole on pentylenetetrazole-induced epileptic seizures in rats and neurotoxicity in the SH-SY5Y cell line. Animals were divided into three groups: control, saline (1 mL/kg serum physiologic), and pantoprazole (10 mg/kg). Pentylenetetrazole (45 mg/kg) was given to induce a seizure and a passive avoidance test trial was carried out to evaluate memory function. 8-hydroxy-2'-deoxyguanosine (8-OHdG), caspase-3, and brain-derived neurotrophic factor (BDNF) levels were measured in the brain by commercial kits. SH-SY5Y cells were treated with saline or pantoprazole for one hour, and then pentylenetetrazole (30 µm) was added to the medium to induce neurotoxicity. After 24 h, cell viability, total antioxidant, total oxidant status, and apoptosis were measured in SH-SY5Y cells. It was found that pantoprazole treatment postponed epileptic seizure onset, protected memory, reduced 8-OHdG, caspase-3, and also increased BDNF in the brain. In addition, it blocked pentylenetetrazole toxicity, apoptosis, increased antioxidant, and decreased oxidant status in SH-SY5Y cells. Pantoprazole significantly improved seizure, oxidative stress, and apoptosis. Thus, pantoprazole could be used as a supportive therapeutic agent in epilepsy.
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Affiliation(s)
- Ahmet Sevki Taskiran
- Department of Physiology, Sivas Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
| | - Mustafa Ergul
- Department of Biochemistry, Sivas Cumhuriyet University School of Pharmacy, Sivas, Turkey
| | - Handan Gunes
- Department of Physiology, Sivas Cumhuriyet University School of Medicine, 58140, Sivas, Turkey
| | - Aysegul Ozturk
- Department of Physiology, Sivas Cumhuriyet University School of Medicine, 58140, Sivas, Turkey
| | - Bilal Sahin
- Department of Physiology, Sivas Cumhuriyet University School of Medicine, 58140, Sivas, Turkey
| | - Ercan Ozdemir
- Department of Physiology, Sivas Cumhuriyet University School of Medicine, 58140, Sivas, Turkey
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15
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Ongun S, Esen C, Ozer S, Yildirim O, Duran B, Kazaz I, Sahin B, Hasirci E, Deliktas H, Sah C, Kizilkan Y, Cinar O. P-02-20 The Relationship Between Premature Ejaculation and the Timing of the Pre-Adult Circumcision. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.174] [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]
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16
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Sahin B, Kızılkan Y, Yıldırım Ö, Şah C, Kazaz İ, Cihan A, Duran B, Ongün Ş, Üre İ, Deliktaş H, Çınar Ö, Gül Ü, Güdeloğlu A, Turunç T. P-02-58 Hypogonadism Prevalence Among Men WHO Admitted to Urology Outpatient Clinic in Turkey: A Multicentric Study. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.210] [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: 10/24/2022]
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17
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Mustafayev T, Sahin B, Gungor G, Aydin G, Serbez I, Teymur B, Gur G, Arabaci G, Atalar B, Yapici B, Abacioglu U, Agaoglu F, Sengoz M, Ozyar E. Time Analysis in Magnetic Resonance Image-Guided Radiotherapy Workflow. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.872] [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: 11/26/2022]
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18
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Etik DO, Parlak E, Oguz D, Oztas E, Kacar S, Onder FO, Sasmaz N, Sahin B. On demand pancreatic stenting in chronic pancreatitis might provide good palliation of pain. Acta Gastroenterol Belg 2019; 82:401-406. [PMID: 31566328] [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: 06/10/2023]
Abstract
BACKGROUND AND AIM Chronic pancreatitis (CP)-related pain is a considerable problem in gastroenterology practice that frequently requires several endoscopic interventions. We aimed to investigate the efficacy of pancreatic duct stenting performed on demand, instead of at defined intervals, for the management of the CP-related pain. METHODS This study is a retrospective evaluation of thirteen years of data. Sixty-seven patients with CP who suffered from intractable pain were enrolled in the study. Pancreatic stenting was performed mainly with single stents according to the diameter of the pancreatic duct and width of the stricture or, less frequently, with multiple stents aiming to achieve stricture resolution. The subsequent endoscopic session was scheduled based on the patient's symptoms. RESULTS Overall, 65 of 67 patients underwent successful pancreatic cannulation (technical success rate 97%). Fifty-seven patients with a pancreatic stenting history were still undergoing follow-up. Of these patients, 26 patients still had pancreatic ductal stents; however, the stents were removed from 31 patients. Only 8 patients (25%) required further endoscopic or surgical intervention because of the re-emergence of pain after a median stent-free period of 17 months (3-127 months). One patient with a biliary stricture and one patient with a pancreatic mass underwent surgery. Pancreatic stents remained for a median length of 14 months (3-84 months). During the follow-up period, 55 of 65 patients became pain-free or had partial pain relief (clinical success rate 84%). CONCLUSIONS On demand replacement of pancreatic stent is feasible in patients with CP and it might provide a good palliation of CP-related pain.
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Affiliation(s)
- D O Etik
- Department of Gastroenterology, Baskent University School of Medicine, Ankara
| | - E Parlak
- Department of Gastroenterology, Hacettepe University School of Medicine, Ankara
| | - D Oguz
- Department of Gastroenterology, Kırıkkale University School of Medicine, Kırıkkale
| | - E Oztas
- Department of Gastroenterology, Osmangazi University University School of Medicine, Eskisehir
| | - S Kacar
- Department of Gastroenterology, Turkiye Yuksek Ihtısas Hospital, Ankara
| | - F O Onder
- Department of Gastroenterology, Acibadem University School of Medicine, Istanbul
| | - N Sasmaz
- Department of Gastroenterology, Turkiye Yuksek Ihtısas Hospital, Ankara
| | - B Sahin
- Department of Gastroenterology, Turkiye Yuksek Ihtısas Hospital, Ankara
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Asci A, Cihan A, Sahin B, Deliktas H, Cinar O, Ongun S, Turunc T, Gul U, Kizilkan Y, Gudeloglu A. PO-01-006 Intra-operative audible Micro-Doppler ultrasound for microsurgical varicocelectomy. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.03.170] [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: 11/24/2022]
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20
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Atalar B, Mustafayev T, Sio T, Sahin B, Gungor G, Aydin G, Yapici B, Ozyar E. P2.16-15 Toxicities and Survival after Stereotactic Ablative Radiotherapy (SABR) for Centrally Located Lung Tumors. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1490] [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: 10/28/2022]
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21
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Atalar B, Kaytan Sağlam E, Akgün Z, Abacioglu U, Arifoglu A, Sahin B, Ozyar E, Yaprak G, Ozseker Isik N, Caglar Ozkok H, Karaman S, Igdem S, Selek U, Öner Dincbas F, Sengoz M, Başkaya Yucel S, Nur Demiral A, Akyurek S. P2.16-14 Results of Stereotactic Radiation Therapy (SABR) in Early Stage Lung Cancer: Turkish Radiation Oncology Group (TROG) Study. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1489] [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: 10/28/2022]
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22
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Akdoğan M, Saşmaz N, Kayhan B, Biyikoğlu I, Dişibeyaz S, Sahin B. Extraordinarily Elevated Ca19-9 in Benign Conditions: A Case Report and Review of the Literature. Tumori 2018; 87:337-9. [PMID: 11765186 DOI: 10.1177/030089160108700513] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 12/21/2022]
Abstract
Carbohydrate antigen CA19-9 is commonly used in the diagnosis of pancreatic and biliary malignancies. However, increases in its level in benign conditions such as acute cholangitis or pancreatitis have also been reported. A 79-year-old woman presented with cholangitis and a pancreatic pseudocyst while showing elevation of CA19-9 up to 35,500 U/mL. The patient was adequately treated and at two months’ follow-up the CA19-9 level had returned to normal.
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Affiliation(s)
- M Akdoğan
- Department of Gastroenterology, Türkiye Yüksek Ihtisas Hospital, Ankara, Turkey.
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23
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Zoto Mustafayev T, Sahin B, Atalar B, Ozyar E. EP-1173: Impact of plasma Epstein-Barr virus-DNA and gross tumor volume on prognosis of nasopharyngeal cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31483-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: 10/14/2022]
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24
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Sahin B, Karabulut A, Akbulut M, Kaleli B, Yorukoglu A. Ectopic prostatic tissue in mature cystic teratoma of the ovary, a case report and review of the literature. J OBSTET GYNAECOL 2016; 36:513-4. [PMID: 26757698 DOI: 10.3109/01443615.2015.1103718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- B Sahin
- a Department of Obstetrics and Gynecology and
| | - A Karabulut
- a Department of Obstetrics and Gynecology and
| | - M Akbulut
- b Department of Pathology , Pamukkale University Medical School , Denizli , Turkey
| | - B Kaleli
- a Department of Obstetrics and Gynecology and
| | - A Yorukoglu
- b Department of Pathology , Pamukkale University Medical School , Denizli , Turkey
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25
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Ozyar E, Dizman A, Esassolak M, Ikizler A, Yildirim C, Caloglu M, Atalar B, Akman F, Demiroz C, Atasoy B, Can E, Igdem S, Ugurluer G, Kutuk T, Akmansu M, Sahin B. Patterns of Care Study in Turkish Nasopharyngeal Cancer Patients (NAZOTURK): A Turkish Radiation Oncology Association Head and Neck Cancer Working Group Study. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1346] [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]
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26
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Ercolak V, Sahin B, Gunaldi M, Duman BB, Afsar CU. Efficacy of paclitaxel in the treatment of Kaposi sarcoma. Eur Rev Med Pharmacol Sci 2015; 19:4095-4100. [PMID: 26592833] [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: 06/05/2023]
Abstract
OBJECTIVE Kaposi sarcoma is an angioproliferative disease. Kaposi sarcoma is clinicopathologically classified into four subgroups based on epidemiological data. For its systemic treatment, in addition to some chemotherapeutics, taxanes have also been used during the recent years for their anti-angiogenic properties. In this study, we aimed to compare paclitaxel and non-paclitaxel chemotherapeutic regimens in terms of efficacy and side effects. PATIENTS AND METHODS In our center, demographical, clinical and histopathological characteristics of a total of 13 patients diagnosed with Kaposi sarcoma who received therapy were retrospectively recorded based on their medical files RESULTS Among these subjects, 7 have been treated with paclitaxel and 6 with non-paclitaxel therapies. Eleven patients were male. Twelve patients were found to have classical type of Kaposi Sarcoma. The recurrence was observed in 2 patients treated with paclitaxel and in 1 patient treated with non-paclitaxel therapy. No statistically significant difference was found between the therapeutic modality, the stage of the disease and the percentage of the recurrence. Neuropathy developed in 3 patients treated with paclitaxel, whereas there was no neuropathy in the other group. Although the recurrence-free survival was worse in the patients treated with paclitaxel, there was no statistically significant difference. CONCLUSIONS Cytotoxic chemotherapy is effective in treating patients with Kaposi Sarcoma, although it is palliative. Taxanes have demonstrated effectiveness against AIDS-associated Kaposi Sarcoma. The experience suggests that paclitaxel is an effective alternative in the treatment of classical form Kaposi's sarcoma. There was no difference in efficacy between paclitaxel and non-paclitaxel therapies whereas difference in occurrence of neuropathy which is one of the side effects, showed borderline statistical significance.
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Affiliation(s)
- V Ercolak
- Department of Medical Oncology, Cukurova University Medical Faculty, Adana, Turkey.
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27
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Bilgili M, Simsek E, Sahin B, Yasar A, Ozbek A. Estimation of human heat loss in five Mediterranean regions. Physiol Behav 2015; 149:61-8. [DOI: 10.1016/j.physbeh.2015.05.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 04/28/2015] [Accepted: 05/24/2015] [Indexed: 11/28/2022]
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Damania D, Kung NTM, Jain M, Jain AR, Liew JA, Mangla R, Koch GE, Sahin B, Miranpuri AS, Holmquist TM, Replogle RE, Benesch CG, Kelly AG, Jahromi BS. Factors associated with recurrent stroke and recanalization in patients presenting with isolated symptomatic carotid occlusion. Eur J Neurol 2015; 23:127-32. [PMID: 26332023 PMCID: PMC5049615 DOI: 10.1111/ene.12819] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 06/29/2015] [Indexed: 11/28/2022]
Abstract
Background and purpose Patients with symptomatic internal carotid artery (ICA) occlusion constitute a small proportion of stroke/transient ischaemic attack patients who are at increased risk of early stroke recurrence and poor outcome. The optimal medical treatment for patients with symptomatic ICA occlusion who are ineligible for thrombolysis or thrombectomy is unknown. Methods Consecutive patients presenting at a single center with newly diagnosed symptomatic ICA occlusion (not involving the circle of Willis) were retrospectively reviewed. Those treated with intravenous thrombolysis or intra‐arterial thrombolysis/thrombectomy were excluded. Patients were divided into two groups based on whether they experienced recurrent in‐hospital stroke. Results The selected study population (n = 33) represented a small (20.4%) proportion of all newly symptomatic carotid occlusions, who nevertheless had an elevated risk of recurrent stroke during admission (24.2%). Of the variables examined (age, gender, admission National Institutes of Health Stroke Scale score, vascular risk factors, atrial fibrillation, prior stroke/transient ischaemic attack and anticoagulation within 48 h of presentation), only anticoagulation was significantly associated with a lower risk of in‐hospital recurrent stroke. Anticoagulated patients showed a decreased incidence of stroke recurrence within the first week (6.7% vs. 38.9%, P = 0.032) and fewer strokes or deaths at 1 month (13.3% vs. 47.1%, P = 0.040). Hemorrhagic transformation was not observed in any patient. On follow‐up imaging, ICA recanalization was significantly more frequent in anticoagulated patients (46.2% vs. 9.1%, P = 0.047). Conclusion Patients with newly diagnosed symptomatic ICA occlusion (not involving the circle of Willis) represent a small but high risk subgroup of patients with carotid occlusion. Early anticoagulation was associated with fewer recurrent strokes and increased ICA recanalization. Larger scale prospective studies may be justified.
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Affiliation(s)
- D Damania
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - N T-M Kung
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - M Jain
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - A R Jain
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - J A Liew
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - R Mangla
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - G E Koch
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - B Sahin
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - A S Miranpuri
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - T M Holmquist
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - R E Replogle
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - C G Benesch
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - A G Kelly
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - B S Jahromi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
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Ozgen M, Akyol L, Sahin B, Sayarlıoglu M. AB0036 Comparison of Tuberculin Skin Test and T-Spot.TB Test in Patients with Receiving Corticosteroid or Immunosuppressive Treatments. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4782] [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: 11/04/2022]
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30
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Usul Afsar C, Sahin B, Gumurdulu D, Kılıc Bagır E, Burgut R, Erkisi M, Kara O, Gunaldi M, Ercolak V. The Evaluation of Fibroblast Growth Factor Receptor 1 (Fgfr1), Fibroblast Growth Factor 2 (Fgf2), Phosphatidylinositol 3 Phosphate Kinase (Ip3K) Expression and Their Clinical, Prognostic Significance in Early and Advanced Stage of Squamous Cell Carcinoma of the Lung. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu359.25] [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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31
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Onuk B, Kabak M, Sahin B, Ince NG, Selcuk MB. New method for estimating the volume and volume fractions of the nasal structures in the goose (Anser anser domesticus) using computed tomography images. Br Poult Sci 2014; 54:441-6. [PMID: 23906217 DOI: 10.1080/00071668.2013.806980] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
1. The conchae within the nasal cavity of poultry are important for water and energy conservation, but have not been experimentally evaluated. The aim of the present study was to determine the accuracy of volume and volume fraction estimates of the conchae, nasal septum and nasal cavity. 2. The nasal cavities of 7 adult goose heads were scanned using computed tomography (CT), with images sampled randomly at a 1/5 sampling fraction. Physical sections were obtained from the same samples, using an electric saw that had an adjustable section range, and provided 14 to 15 sections with a thickness of 2.5 mm. The section surface areas of the nasal cavity, nasal septum and conchae were estimated using the Cavalieri principle. Results obtained using the CT and physical section images were compared. Volumes and volume fractions obtained from the physical sections were accepted as the gold standard and differences in the CT images were determined. 3. Multiplication of the data obtained on the CT images with the deviation percentage of the physical sections produced normalised values. No differences were observed between the gold standard data and the CT images. While it was possible to normalise the obtained data using the gold standard values, the raw data could also be used for comparative studies because the deviations from normal would be similar for all groups. 4. Our study showed that the nasal structures could be estimated in vivo using CT images.
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Affiliation(s)
- B Onuk
- Department of Anatomy, Faculty of Veterinary Medicine, Ondokuz Mayıs University, Samsun, Turkey.
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Turk F, Atinkaya C, Yuncu G, Ekinci Y, Sahin B, Atalay H, Aybek H, Bir F. F-034THE COMPARISON OF TRACHEOTOMY AND TRANSLARYNGEAL INTUBATION REGARDING FREE RADICAL FORMATION AND EFFECT ON THE LUNG IN RATS. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt288.34] [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: 11/12/2022] Open
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Ozgoren M, Dogan S, Okbaz A, Aksoy MH, Sahin B, Akıllı H. Comparison of Flow Characteristics of Different Sphere Geometries Under the Free Surface Effect. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134501022] [Citation(s) in RCA: 3] [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: 11/14/2022] Open
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Duman BB, Sahin B, Acikalin A, Ergin M, Zorludemir S. PTEN, Akt, MAPK, p53 and p95 expression to predict trastuzumab resistance in HER2 positive breast cancer. J BUON 2013; 18:44-50. [PMID: 23613387] [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: 06/02/2023]
Abstract
PURPOSE Mutations that activate the PIK3CA oncogene and inhibit the tumor suppressor gene PTEN action are commonly found in breast tumors. Akt is a key activator of cell survival. p53 is frequently found mutated in human tumors, and mutant p53 protein actively contributes to tumorigenesis. In selected cases of breast cancer, trastuzumab (TZMB) is incorporated in the primary treatment in the adjuvant and metastatic settings. Many studies have reported that selected patients are resistant to TZMB due to the presence of p95 HER2 fragments. To address this, we analysed PTEN, Akt, MAPK, p53 and p95 expression in breast cancer patients treated with TZMB. METHODS Out of 90 patients histologically diagnosed with breast cancer between 2004 and 2011, analysed were 25 patients with HER2 positive, and estrogen (ER) and progesterone receptors (PR) negative, metastatic or locally advanced disease. All 25 patients were treated with TZMB and resistance to TZMB was assessed. All patients were on anthracycline-and taxane-containing regimens. Tissue samples were obtained from paraffin blocks and evaluated immunohistochemically for PTEN, Akt, MAPK, p53, and p95 expression. RESULTS TZMB resistance was detected in 5 (20%) patients. Akt expression was positive in 2 patients (8%) and MAPK, p95, and p53 expression was positive in 1 patient (4%); PTEN expression was negative in 3 patients (12%). No significant differences were found between TZMB resistance and PTEN, Akt, MAPK, p53, and p95 expression. Subgroup analysis was carried out in the neoadjuvant treatment group. Complete pathologic response was detected in 3 patients (21.4%). Statistically significant differences were not found between the complete response rate and PTEN, Akt, MAPK, and p95 expression. There was a statistically significant correlation between p53 expression and complete pathologic response (p=0.02). CONCLUSION No statistically significant correlation between TZMB resistance and the expression of these biomarkers was noted. In patients with HER2-positive breast cancer that were treated with 4 dose-dense sequential cycles of doxorubicin and cyclophosphamide, followed by TZMB and paclitaxel combination therapy in the neodjuvant setting, p53 expression could predict complete response to chemotherapy.
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Affiliation(s)
- B B Duman
- Department of Medical Oncology, Cukurova University Medical Faculty, Adana, Turkey.
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Ulker M, Duman B, Sahin B, Gumurdulu D. Ercc1 Expression as Predictive Biomarker for Platinum Containing Chemotherapy Regimens in Ovarian Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33547-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: 10/25/2022] Open
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Parlak E, Köksal AS, Onder FO, Dişibeyaz S, Tayfur O, Ciçek B, Saşmaz N, Sahin B. ERCP in patients with Jaboulay pyloroplasty. Acta Gastroenterol Belg 2012; 75:373-374. [PMID: 23082716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Sisman H, Sahin B, Duman BB, Tanriverdi G. Nurse-assisted education and exercise decrease the prevalence and morbidity of lymphedema following breast cancer surgery. J BUON 2012; 17:565-569. [PMID: 23033300] [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: 06/01/2023]
Abstract
PURPOSE To evaluate an educational and exercise program for the prevention and progression of post-mastectomy lymphedema of the arm and shoulder. METHODS Fifty-five patients who had undergone mastectomy and axillary lymph node dissection between June 2009 and January 2010 were included in this study. The patients were informed by a trainer nurse about the precautions they should take to prevent the development of lymphedema. The patients were also trained for the appropriate exercises and were given written educational material prepared by the investigators. RESULTS Among the participants, 96.4% underwent modified radical mastectomy (MRM) and 3.6% breast-conserving (BCS) surgery. The mean postoperative follow-up period was 9.87 ± 17.55 months. The degree of lymphedema was found lower, even within 6 months, in the patients that exercised as compared to the patients that did not (p<0.05). CONCLUSIONS The results indicate that the risk of development and progression of mastectomy-related lymphedema was reduced with education and exercise provided by trained nurses at an early stage.
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Affiliation(s)
- H Sisman
- Department of Nursing, Cukurova University Medical Faculty, Balcali, Adana, Turkey
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Emirzeoglu M, Sahin B, Celebi M, Uzun A, Bilgic S, Tontus HO. Estimation of nasal cavity and conchae volumes by stereological method. Folia Morphol (Warsz) 2012; 71:105-108. [PMID: 22648589] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Studies evaluating the mean volumes of nasal cavity and concha are very rare. Since there is little date on the mentioned topic, we aimed to carry out the presented study to obtain a volumetric index showing the relation between the nasal cavity and concha. MATERIAL AND METHODS The volumes of the nasal cavity and concha were measured in 30 males and 30 females (18-40 years old) on computed tomography images using stereological methods. RESULTS The mean volumes of nasal cavity, concha nasalis media, and concha nasalis inferior were 5.95 ± 0.10 cm(3), 0.56 ± 0.22 cm(3), and 1.45 ± 0.68 cm(3); 7.01 ± 0.18 cm(3), 0.67 ± 0.31 cm(3) and 1.59 ± 0.98 cm(3) in females and males, respectively. There were statistically significant differences in the volume of the nasal cavity and concha nasalis media (p 〈 0.05) between males and females, except for concha nasalis inferior (p 〉 0.05). CONCLUSIONS Our results could provide volumetric indexes for the nasal cavity and concha, which could help the physician to manage surgical procedures related to the nasal cavity and concha.
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Affiliation(s)
- M Emirzeoglu
- Anatomy Department, Ondokuz Mayis University, Samsun, Turkey.
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Kayipmaz S, Sezgin OS, Saricaoglu ST, Bas O, Sahin B, Küçük M. The estimation of the volume of sheep mandibular defects using cone-beam computed tomography images and a stereological method. Dentomaxillofac Radiol 2011; 40:165-9. [PMID: 21346083 DOI: 10.1259/dmfr/23067462] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The Cavalieri principle of stereological methods is widely used to estimate the volume of structures. Recently in clinical practice, it has become common to use this approach for daily routine purposes. The Cavalieri principle provides quantitative and unbiased volume estimates which are independent of the observer. In the present study, the efficacy of using the Cavalieri principle to estimate the volume of sheep mandibular defects on cone beam CT (CBCT) scans was tested. METHODS 24 differently sized defects were created on 4 sheep mandibles. Before the defects were created, the outer boundaries of the defects were determined using plaster casts. CBCT scans of the defects were taken. The scans were reconstructed in the coronal plane and sections of 0.2 mm thickness with 0.2 mm and 0.4 mm intervals were obtained. The volume of each defect was estimated using the Cavalieri principle. The models were created using light-body silicone for the estimation of the actual volume of each defect. They were immersed in water using a pycnometer and the actual volumes were obtained on the basis of the Archimedean principle. The actual and estimated volumes of the defects were compared using the Wilcoxon signed-rank test. RESULTS The results showed that the volumes from the Cavalieri estimates did not differ from the actual volumes of the defects (P > 0.05). CONCLUSION We concluded that the volume of mandibular defects can be accurately estimated using the Cavalieri principle on images from a CBCT scan.
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Affiliation(s)
- S Kayipmaz
- Karadeniz Technical University Faculty of Dentistry, Department of Oral Diagnosis and Radiology, 61080 Trabzon,Turkiye.
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Parlak E, Disibeyaz S, Oztas E, Cicek B, Ulas M, Ozogul Y, Ozdemir E, Olcer T, Sasmaz N, Sahin B. Endoscopic treatment of biliary disorders in patients with Roux-en-Y hepaticojejunostomy via a permanent access loop. Endoscopy 2011; 43:73-6. [PMID: 21108177 DOI: 10.1055/s-0030-1255957] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [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: 12/30/2022]
Abstract
The management of biliary disorders in patients with Roux-en-Y hepaticojejunostomy anastomosis is challenging and remains controversial. Our aim is to share our experiences of endoscopic treatment via a permanent access loop in 5 patients. Endoscopic treatment via a permanent access loop is an invaluable procedure for the management of stenotic hepaticojejunostomy anastomosis, anastomotic leakage, and hepatolithiasis. It may even be life-saving for some patients.
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Affiliation(s)
- E Parlak
- Department of Gastroenterology, Turkiye Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
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Abstract
Among patients with haematologic disorders, mucormycosis most commonly occurs in those with acute leukaemia or lymphoma who have developed neutropenia due to malignancy or to chemotherapy, and in transplanted patients receiving immunosuppressive treatment. Here, we aim to present a retrospective study conducted over a 5-year period (2001-2005). The study included 20 patients with haematologic malignancies with a proven mucormycosis admitted in Medical Oncology Divisions in Cukurova University Hospital. The most frequent sites of infection were paranasal sinuses (95%) and lung (5%). Antifungal treatment was empirically administered in 18 (90%) patients; 18 patients underwent radical surgical debridement (90%). The therapy was successful for only eight patients (40%). Eleven patients died within 1 months of the diagnosis of fungal infection: the cause of death was only by mucormycosis in four patients (36.6%), mucormucosis and systematic inflamatuar response syndrome (SIRS) in two patients (18.2%) and progression of haematologic disease in five patients (45.5%). At univariate analysis, the factors that correlated with a positive outcome from infection were the following: amphotericin B treatment, neutrophil recovery from postchemotherapy aplasia. At multivariate analysis, the factors that significantly correlated with recovery from infection were the liposomal amphotericin B treatment (p = 0.026), doses of L-AmB (p = 0.008) and the length of the treatment (p = 0.01), respectively. It seems to have increased in recent years. Although a reduction of mortality has been observed recently, the mortality rate still remains high. Extensive and aggressive diagnostic and therapeutic procedures are essential to improve the prognosis in these patients.
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Affiliation(s)
- I O Kara
- Department of Medical Oncology, Faculty of Medicine, Cukurova University, Turkey.
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Canan S, Bozkurt HH, Acar M, Vlamings R, Aktas A, Sahin B, Temel Y, Kaplan S. An efficient stereological sampling approach for quantitative assessment of nerve regeneration. Neuropathol Appl Neurobiol 2008; 34:638-49. [DOI: 10.1111/j.1365-2990.2008.00938.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sahin B, Ozdemir T. Epiphytic algae on mosses in the Altindere Valley National Park (Maçka-Trabzon/Turkey). Pak J Biol Sci 2008; 11:2278-2281. [PMID: 19137841 DOI: 10.3923/pjbs.2008.2278.2281] [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] [Indexed: 05/27/2023]
Abstract
Species composition and abundance of epiphytic algae on mosses growing in the Altindere Valley National Park were investigated in March 2008. The epiphytic algae identified in these samples were 27 species in total, 15 of the Bacillariophyta, 7 of the Cyanophyta, 4 of the Chlorophyta and a single of the Euglenophyta species. The members of the Bacillariophyta were more frequently found among these epiphytic algae on mosses. Netrium digitus (Ehrenb.) Itzigs and Rothe var. curtum (Borge) Willi Krieg. was recorded for the first time in the desmids flora of Turkey. The epiphytic algal flora on mosses at the submerged habitat was the richest of the three habitats.
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Affiliation(s)
- B Sahin
- Department of Biology Education, Faculty of Fatih Education, Karadeniz Technical University, 61335 Söğütlü, Trabzon, Turkey
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Hanedan S, Sahin B, Ayaz NA, Aldemir H. Chronic granulomatous disease in an infant with sweet syndrome. Pediatr Rheumatol Online J 2008. [PMCID: PMC3333934 DOI: 10.1186/1546-0096-6-s1-p137] [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
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Sahin B, Acer N, Sonmez OF, Emirzeoglu M, Basaloglu H, Uzun A, Bilgic S. Comparison of four methods for the estimation of intracranial volume: a gold standard study. Clin Anat 2008; 20:766-73. [PMID: 17708568 DOI: 10.1002/ca.20520] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [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: 11/09/2022]
Abstract
Investigators can infer how much reduction in volume has occurred since brain volume was at its peak, by combining measures of brain volume with measures of intracranial volume (ICV). Several methodologies have been proposed to asses the ICV. However, we have not seen a gold-standard study evaluating the results of the methodologies for the assessment of ICV. In the present study, the actual intracranial volume of 20 dry skulls was measured using the water-filling method, using this as a gold standard. Anthropometry, cephalometry, point-counting, and planimetry techniques were applied to the same skulls to estimate the ICV. Anthropometric and cephalometric measurements were carried out directly on skulls and roentgenograms, respectively. Consecutive computed tomography sections at a thickness of 10 mm were used to estimate the ICV of the skulls by means of the point-counting and planimetry methods. The mean (+/-SD) of the actual ICV measured by the water-filling method was 1,262.0 +/- 160.4 cm(3) (1,389.5 +/- 96.5 cm(3) for males and 1,134.5 +/- 94.3 cm(3) for females, respectively). Our results showed that the estimated values obtained by all four methods differed from the actual volumes of the skulls (P < 0.05). The data obtained by anthropometry resulted in overestimation. However, cephalometry, point-counting, and planimetry methods produced underestimation. After calibration, there were no significant differences between the actual volumes and the results of the four methods (P > 0.05). While the anthropometric method is easy and quick to apply, its result may deviate from the actual values. The optimized stereological techniques of point-counting and planimetry methods may provide unbiased ICV results since they take the third dimension of the structures into account.
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Affiliation(s)
- B Sahin
- Department of Anatomy, Medical School, Ondokuz Mayis University, Samsun, Turkey.
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Kara IO, Erkisi M, Gumurdulu D, Sahin B, Zeren H. Topoisomerase-II, c-erb B2, c-kit and bcl-2 expression in non-small cell lung cancer treated with docetaxel and gemcitabine based threapy. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.18212] [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: 11/20/2022] Open
Abstract
18212 Background: This study was conducted to determine the expression of the topoisomeras-II, c-erb B2, c-kit and bcl-2 in patients with non-small cell lung cancer (NSCLC). Material-methods: These factors expression were identified by immunohistochemical method in 62 NSCLC patients pathologically verified on before therapy. Results: 3 patients were in stage-II, 10 in stage-IIIA, 21 in stage-IIIB and 28 in stage-IV. 14 patients had refused therapy, 12 were undergone to surgery alone and 36 recieved multimodality therapy. 27 patients recieved docetaxel-cisplatin therapy and 7 had recieved gemcitabine-cisplatin therapy. Of those docetaxel treated patients 14 received radiation therapy and others undewent surgery in combination therapy. In 31 patients topoisomerase-II was +2 (50%), +1 in 3 patients, +3 in 27 patients and in 1 patient the expression was negative. c-erb B2 was negative in 1, +1 in 2, +2 in 14 and +3 in 45 patients. bcl-2 was negative in 9, +1 in 16, +2 in 22 and +3 in 15 patients. c-kit was negative in 9, +1 in 26, +2 in 15 and +3 in 12 patients. Statistical analysis was done by SPSS- 14 software program. The disease stage, received therapies and the expression of the these proteins was correlated, median survival time and possible prognostic factors were identified. There were statistically significant between stage and patient status (P=0.000), either with therapy or no therapy (p=0.003), bcl-2 (p=0.09) and c-kit (p=0.022), respectively. There were statisticaly significant between stage and bcl-2 (p=0.023), bcl-2 and c-kit (p=0.001), respectively. At the end of the follow-up time, 38 (61.3%) patients were alive. The median survival was 37.2 months. There were not any prognostic values for topoisomerase-II (p=0.7), c-erb B2 (p=0.6), bcl-2 p=0.15) and c-kit (p=0.118) expression. Conclussion: In conclussion, we suggested that the treatment modality of patients with NSCLC should be combination therapy. The patients received docetaxel based therapy had long median survival time. In addition there was no prognosticeffect of the expression of the topoisomeras-II, c- erb B2, c-kit and bcl-2 in patients with non-small cell lung cancer (NSCLC). No significant financial relationships to disclose.
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Affiliation(s)
- I. O. Kara
- Cukurova University Faculty of Medicine, Adana, Turkey
| | - M. Erkisi
- Cukurova University Faculty of Medicine, Adana, Turkey
| | - D. Gumurdulu
- Cukurova University Faculty of Medicine, Adana, Turkey
| | - B. Sahin
- Cukurova University Faculty of Medicine, Adana, Turkey
| | - H. Zeren
- Cukurova University Faculty of Medicine, Adana, Turkey
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Abstract
The aim of this prospective study was to evaluate the results and the complications at a tertiary referral center which frequently uses precutting techniques for biliary cannulation. Four hundred seventy patients with naive papilla for whom biliary intervention was planned were included in the study. If the selective cannulation was not achieved after a few trials, precutting sphincterotomy was performed. The results were evaluated for the frequency, success, and complication rates of precutting. Precutting was performed on 238 (50.6%; 117 male, 121 female; mean age, 58.5 +/- 16.2 years) of 470 patients. Total success rate of endoscopic retrograde cholangiopancreatography (ERCP) was 99.2% (236/238). The rate of complications in patients with versus without precutting was 7 (2.9%) versus 3 (1.3%) for pancreatitis, 2 (0.8%) versus 1 (0.4%) for perforation, and 7 (2.9%) versus 3 (1.3%) for bleeding. The differences between the rates were not significant. Early precutting can be preferable in prolonged cannulation trials of therapeutic ERCP.
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Affiliation(s)
- E Parlak
- Turkiye Yuksek Ihtisas Hospital, Department of Gastroenterology, Ankara, Turkey.
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