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Erdin M, Polat C, Smura T, Irmak S, Cetintas O, Cogal M, Colak F, Karatas A, Sozen M, Matur F, Vapalahti O, Sironen T, Oktem IMA. Phylogenetic Characterization of Orthohantavirus dobravaense (Dobrava Virus). Emerg Infect Dis 2024; 30:779-782. [PMID: 38526228 PMCID: PMC10977844 DOI: 10.3201/eid3004.230912] [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: 03/26/2024] Open
Abstract
We report complete coding sequences of Orthohantavirus dobravaense (Dobrava virus) Igneada strains and phylogenetic characterization of all available complete coding sequences. Our analyses suggested separation of host-dependent lineages, followed by geographic clustering. Surveillance of orthohantaviruses using complete genomes would be useful for assessing public health threats from Dobrava virus.
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Yildirim O, Sozen M, Kartalci S. Screening of ERBB4 SNP rs1026882 in a group of Schizophrenia patients and controls. Med-Science 2022. [DOI: 10.5455/medscience.2022.05.108] [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] Open
Abstract
Schizophrenia is a multifactorial psychiatric disorder which is affected by genetic, environmental, and several other factors. ERBB4 is a gene with polymorphic sites which reported to be associated with schizophrenia. In this prospective study, we have tested the association of schizophrenia with one of the single nucleotide polymorphisms (SNP) called rs1026882 in the ERBB4 gene. We have screened the genotypes of rs1026882 in a case group consisted of 96 schizophrenia patients and 100 healthy controls. All samples were collected from the population living in Malatya-Turkey. First, we compared the distributions of SNP genotypes and alleles between the case and control groups, then between the subgroups of patients defined according to SAPS and SANS parameters and phenotypical outcomes of the disease. Even though there was no significant difference between the case and control groups, comparing the subgroups of patients revealed that, the CC genotype was more common than the CT through the patients showing avolition-apathy symptom (one of the parameters in SANS). In addition, TT genotype was significantly more frequent in the subgroup of patients exhibiting the phenotype of suicidal thoughts.Our study was limited with a relatively small sample size and a population living in a small geographical region. Therefore, screening of rs1026882 genotypes in larger case-control groups from different populations is thought to help to reveal stronger evidence for presence of the association between this SNP and schizophrenia phenotypes. As conclusion, we did not find a direct association between rs1026882 genotype and schizophrenia in general, but the TT genotype was associated with the phenotype of suicidal thoughts, and the CC genotype seems related to avolition-apathy symptom in our sample.
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Usluca S, Celebi B, Karasartova D, Gureser AS, Matur F, Oktem MA, Sozen M, Karatas A, Babur C, Mumcuoglu KY, Taylan Ozkan A. Molecular Survey of Babesia microti (Aconoidasida: Piroplasmida) in Wild Rodents in Turkey. J Med Entomol 2019; 56:1605-1609. [PMID: 31143936 DOI: 10.1093/jme/tjz084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Indexed: 06/09/2023]
Abstract
Babesia microti (Aconoidasida: Piroplasmida) (Franca, 1910) is an important tick-borne zoonotic parasite with rodents serving as reservoir hosts. In the present study, 536 rodents were captured from Burdur, Bartin, Giresun, and Yozgat provinces of Turkey between the years 2010 and 2012, and blood samples were examined for the presence of Babesia spp. using conventional PCR which targeted the 18S rRNA gene. The sequence analysis of PCR amplicons was tested for B. microti as well as for Hepatozoon spp., and Sarcocystis spp. Overall, 5.8% of the rodents were positive for B. microti: 41% in Myodes glareolus, 7.7% in Chionomys roberti, and 2% in Apodemus spp., whereas no Babesia DNA was detected in Mus macedonicus and Microtus spp. Six rodents were positive for Hepatozoon spp. and one rodent was positive for Sarcocystis spp. Overall, 14.9 and 4.5% of rodents captured from Bartin and Giresun provinces, respectively, were PCR positive for B. microti, whereas none of rodents captured in Burdur and Yozgat were positive for Babesia spp. The sequence data of B. microti from rodents revealed that all sequences belonged to the zoonotic genotype. Sequences of B. microti obtained from rodents of the Bartin province were genotypically closer to European isolates, whereas those obtained from rodents of the Giresun province were closer to Russian and Mongolian isolates.
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Affiliation(s)
- Selma Usluca
- General Directorate of Public Health, Microbiology Reference Laboratories and Biological Products Department, Ankara, Turkey
| | - Bekir Celebi
- General Directorate of Public Health Department of Zoonotic and Vectorial Diseases, Ankara, Turkey
| | - Djursun Karasartova
- Department of Microbiology, Hitit University, Faculty of Medicine, Corum, Turkey
| | - A Semra Gureser
- Department of Microbiology, Hitit University, Faculty of Medicine, Corum, Turkey
| | - Ferhat Matur
- Biology Department, Dokuz Eylul University, Faculty of Science, Izmir, Turkey
| | - M Ali Oktem
- Department of Microbiology and Clinical Microbiology, Dokuz Eylul University, Faculty of Medicine, Izmir, Turkey
| | - Mustafa Sozen
- Biology Department, Zonguldak Bulent Ecevit University, Faculty of Science, Zonguldak, Turkey
| | - Ahmet Karatas
- Biology Department, Nigde Omer Halisdemir University, Faculty of Science, Nigde, Turkey
| | - Cahit Babur
- General Directorate of Public Health, Microbiology Reference Laboratories and Biological Products Department, Ankara, Turkey
| | - Kosta Y Mumcuoglu
- Department of Microbiology and Molecular Genetics, Parasitology Unit, The Hebrew University - Hadassah Medical School, Jerusalem, Israel
| | - Aysegul Taylan Ozkan
- Department of Microbiology, Hitit University, Faculty of Medicine, Corum, Turkey
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Polat C, Sironen T, Plyusnina A, Karatas A, Sozen M, Matur F, Vapalahti O, Oktem IMA, Plyusnin A. Dobrava hantavirus variants found in
Apodemus flavicollis
mice in Kırklareli Province, Turkey. J Med Virol 2018; 90:810-818. [DOI: 10.1002/jmv.25036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/10/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Ceylan Polat
- Department of Medical Microbiology, Medical SchoolDokuz Eylül UniversityIzmirTurkey
| | - Tarja Sironen
- Department of VirologyUniversity of HelsinkiHelsinkiFinland
| | | | - Ahmet Karatas
- Department of Biology, Faculty of Arts and SciencesÖmer Halisdemir UniversityNiğdeTurkey
| | - Mustafa Sozen
- Department of Biology, Faculty of Arts and SciencesBülent Ecevit UniversityZonguldakTurkey
| | - Ferhat Matur
- Department of Biology, Faculty of Arts and SciencesBülent Ecevit UniversityZonguldakTurkey
| | - Olli Vapalahti
- Department of VirologyUniversity of HelsinkiHelsinkiFinland
| | - I. Mehmet Ali Oktem
- Department of Medical Microbiology, Medical SchoolDokuz Eylül UniversityIzmirTurkey
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Oktem IMA, Uyar Y, Dincer E, Gozalan A, Schlegel M, Babur C, Celebi B, Sozen M, Karatas A, Ozkazanc NK, Matur F, Korukluoglu G, Ulrich RG, Ertek M, Ozkul A. Dobrava-Belgrade virus in Apodemus flavicollis and A. uralensis mice, Turkey. Emerg Infect Dis 2014; 20:121-5. [PMID: 24377763 PMCID: PMC3887490 DOI: 10.3201/eid2001.121024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In 2009, human Dobrava-Belgrade virus (DOBV) infections were reported on the Black Sea coast of Turkey. Serologic and molecular studies of potential rodent reservoirs demonstrated DOBV infections in Apodemus flavicollis and A. uralensis mice. Phylogenetic analysis of DOBV strains showed their similarity to A. flavicollis mice–borne DOBV in Greece, Slovenia, and Slovakia.
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Kasapoglu B, Turkay C, Yalcin KS, Carlioglu A, Sozen M, Koktener A. Low vitamin D levels are associated with increased risk for fatty liver disease among non-obese adults. Clin Med (Lond) 2013; 13:576-9. [PMID: 24298105 PMCID: PMC5873660 DOI: 10.7861/clinmedicine.13-6-576] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Recent data have revealed an inverse relationship between insulin resistance, which is associated with fatty liver disease, and blood 25-hydroxy-vitamin D (25(OH)D) levels. The aim of the present study was to determine the association of vitamin D levels with the presence and stage of fatty liver disease among non-obese subjects and to determine the effect of vitamin D status on fatty liver disease development. A total of 613 non-obese (body mass index <30 kg/m(2)) gastroenterology and internal medicine outpatients (472 women and 141 men) were enrolled in the study. The patients' laboratory values, including liver function tests, lipid profiles, C-reactive protein, fasting blood glucose, insulin, calcium and 25(OH)D levels were studied. Low vitamin D levels, higher triglyceride levels and higher alanine aminotransferase levels were found to be the significant determinants for non-alcoholic fatty liver disease. When the patients were evaluated as low or normal vitamin D groups, low vitamin D levels was determined to be a risk factor for fatty liver disease, with an odds ratio of -1.59 (confidence interval -1.22 to -1.97). The increased risk for fatty liver disease among patients with low vitamin D status may be suggestive of mechanisms promoting fat flow and accumulation in the liver. Molecular studies are warranted to elucidate the action of vitamin D on the liver with respect to fat metabolism.
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Affiliation(s)
- B Kasapoglu
- Division of Gastroenterology, Department of Internal Medicine, Turgut Ozal University Medical School, Ankara, Turkey
| | - C Turkay
- Division of Gastroenterology, Department of Internal Medicine, Turgut Ozal University Medical School, Ankara, Turkey
| | - KS Yalcin
- Department of Internal Medicine, Turgut Ozal University Medical School, Ankara, Turkey
| | - A Carlioglu
- Division of Endocrinology, Department of Internal Medicine, Turgut Ozal University Medical School, Ankara, Turkey
| | - M Sozen
- Division of Gastroenterology, Department of Internal Medicine, Turgut Ozal University Medical School, Ankara, Turkey
| | - A Koktener
- Department of Radiology, Turgut Ozal University Medical School, Ankara, Turkey
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Besiroglu L, Sozen M, Ozbebit O, Avcu S, Selvi Y, Bora A, Atli A, Unal O, Bulut MD. The involvement of distinct neural systems in patients with obsessive-compulsive disorder with autogenous and reactive obsessions. Acta Psychiatr Scand 2011; 124:141-51. [PMID: 21627621 DOI: 10.1111/j.1600-0447.2011.01726.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [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: 11/29/2022]
Abstract
OBJECTIVE To investigate the regional metabolite abnormalities and changes after treatment in patients with OCD with autogenous and reactive obsessions. METHOD We assessed right anterior cingulate cortex (ACC) and amygdala-hippocampal region (Am + Hpp) N-acetyl-aspartate (NAA), choline (Cho) and creatine (Cr) concentrations and NAA/Cr and Cho/Cr ratios using single-voxel proton magnetic resonance spectroscopy in 15 patients with autogenous obsessions (OCD-A), 15 patients with reactive obsessions (OCD-R) and 15 healthy controls (HC). Measurements were repeated after 16 weeks of fluoxetine treatment. RESULTS Baseline ACC NAA/Cr ratios of both OCD groups were significantly lower than HC. OCD-A group had significantly lower baseline NAA/Cr ratios in the Am + Hpp than other groups. These differences were more likely to be explained by higher Cr levels in ACC. We found no significant differences and changes for Cho levels and Cho/Cr ratios between groups and within groups. Significant increase in NAA/Cr ratios of OCD-A group found in the Am + Hpp was more likely to be explained by increased NAA levels. No significant changes were found in ACC NAA/Cr ratios. CONCLUSION While disturbed energy metabolism in ACC might reflect a common pathology in patients with OCD regardless of symptom dimension, alterations in mesiotemporal lobe are more likely for autogenous obsessions.
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Affiliation(s)
- L Besiroglu
- Department of Psychiatry, Yuzuncu Yil University, Van, Turkey.
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Ivanitskaya E, Sozen M, Rashkovetsky L, Matur F, Nevo E. Discrimination of 2n = 60 Spalax leucodon cytotypes (Spalacidae, Rodentia) in Turkey by means of classical and molecular cytogenetic techniques. Cytogenet Genome Res 2008; 122:139-49. [PMID: 19096209 DOI: 10.1159/000163091] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2008] [Indexed: 11/19/2022] Open
Abstract
Comparative studies among seven populations of 2n = 60 S. leucodon employing classic cytogenetics (G- bands, C-bands, AgNOR-staining), fluorochrome staining, and fluorescence in situ hybridization of telomeric and rDNA probes are reported here for the first time. The studied specimens were assigned to two cytotypes: 2n = 60W and 2n = 60R. The basic karyotype of both cytotypes consisted of eight pairs of subtelocentric and 21 pairs of acrocentric autosomes, subtelocentric X and acrocentric Y chromosomes. Both cytotypes had variable numbers of B-chromosomes (1-3) and variable numbers of autosomal arms (NFa = 74-76) caused by amplification (deletion) of heterochromatin short arms in the second pair. The short arms of subtelocentric chromosomes were comprised of heterochromatin in both cytotypes. Nucleolar organizer regions (NORs) and rDNA clusters were detected at telomeric sites of the short arms in pairs Nos. 3, 5, 6, 9, and 13 in cytotype W, and in the short arms of pair No. 6, 8, 12, 13, and 16 in cytotype R. Different locations of rDNA clusters allowed unambiguous discrimination between two S. leucodon cytotypes possessing the same 2n = 60 and similar NFa (74-76) variability. Our findings suggest a high level of chromosomal divergence, which means that it is possible to consider these cytotypes as a well-differentiated, chromosomal lineage within the leucodon group.
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Affiliation(s)
- E Ivanitskaya
- Institute of Evolution, University of Haifa, Haifa, Israel.
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Taylor A, Tabrah S, Wang D, Sozen M, Duxbury N, Whittall R, Humphries SE, Norbury G. Multiplex ARMS analysis to detect 13 common mutations in familial hypercholesterolaemia. Clin Genet 2007; 71:561-8. [PMID: 17539906 DOI: 10.1111/j.1399-0004.2007.00807.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [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: 12/13/2022]
Abstract
DNA analysis and mutation identification is useful for the diagnosis of familial hypercholesterolaemia (FH), particularly in the young and in other situations where clinical diagnosis may be difficult, and enables unambiguous identification of at-risk relatives. Mutation screening of the whole of the three FH-causing genes is costly and time consuming. We have tested the specificity and sensitivity of a recently developed multiplex amplification refractory mutation system assay of 11 low-density lipoprotein receptor gene (LDLR) mutations, one APOB (p.R3527Q) and one PCSK9 (p.D374Y) mutation in 400 patients attending 10 UK lipid clinics. The kit detected a mutation in 54 (14%) patients, and a complete screen of the LDLR gene using single-stranded conformation polymorphism/denaturing high performance liquid chromatography identified 59 different mutations (11 novel) in an additional 87 patients, for an overall detection rate of 35%. The kit correctly identified 38% of all detected mutations by the full screen, with no false-positive or false-negative results. In the patients with a clinical diagnosis of definite FH, the overall detection rate was higher (54/110 = 49%), with the kit detecting 52% of the full-screen mutations. Results can be obtained within a week of sample receipt, and the high detection rate and good specificity make this a useful initial DNA diagnostic test for UK patients.
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Affiliation(s)
- A Taylor
- Regional Molecular Genetics Laboratory, Great Ormond Street Hospital for Children, Great Ormond Street, London, WC1N 3JH, UK
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Sozen M, Whittall R, Webb M, Norbury G, Tabrah S, Taylor A, Humphries S. Mo-P6:381 An arms-based diagnostic kit for genetic testing for familial hypercholesterolemia in the UK. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80511-8] [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: 10/23/2022]
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