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Kaya-Yasar Y, Engin S, Barut EN, Inan C, Saygin I, Erkoseoglu I, Sezen SF. The contribution of the WNT pathway to the therapeutic effects of montelukast in experimental murine airway inflammation induced by ovalbumin and lipopolysaccharide. Drug Dev Res 2024; 85:e22178. [PMID: 38528652 DOI: 10.1002/ddr.22178] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/15/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024]
Abstract
The wingless/integrase-1 (WNT) pathway involved in the pathogenesis of inflammatory airway diseases has recently generated considerable research interest. Montelukast, a leukotriene receptor antagonist, provides therapeutic benefits in allergic asthma involving eosinophils. We aimed to investigate the role of the WNT pathway in the therapeutic actions of montelukast (MT) in a mixed type of allergic-acute airway inflammation model induced by ovalbumin (OVA) and lipopolysaccharide (LPS) in mice. Female mice were sensitized with intraperitoneal OVA-Al(OH)3 administration in the initiation phase and intranasal OVA followed by LPS administration in the challenge phase. The mice were divided into eight groups: control, asthmatic, and control/asthmatic treated with XAV939 (inhibitor of the canonical WNT pathway), LGK-974 (inhibitor of the secretion of WNT ligands), or MT at different doses. The inhibition of the WNT pathway prevented tracheal 5-HT and bradykinin hyperreactivity, while only the inhibition of the canonical WNT pathway partially reduced 5-HT and bradykinin contractions compared to the inflammation group. Therefore, MT treatment hindered 5-HT and bradykinin hyperreactivity associated with airway inflammation. Furthermore, MT prevented the increases in the phosphorylated GSK-3β and WNT5A levels, which had been induced by airway inflammation, in a dose-dependent manner. Conversely, the MT application caused a further increase in the fibronectin levels, while there was no significant alteration in the phosphorylation of the Smad-2 levels in the isolated lungs of the mice. The MT treatment reversed the increase in the mRNA expression levels of interleukin-17A. An increase in eosinophil and neutrophil counts was observed in bronchoalveolar lavage fluid samples obtained from the mice in the inflammation group, which was hampered by the MT treatment. The inhibition of the WNT pathway did not alter inflammatory cytokine expression or cell infiltration. The WNT pathway mediated the therapeutic effects of MT due to the inhibition of GSK-3β phosphorylation as well as the reduction of WNT5A levels in a murine airway inflammation model.
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Affiliation(s)
- Yesim Kaya-Yasar
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Türkiye
| | - Seckin Engin
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Türkiye
| | - Elif Nur Barut
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Türkiye
| | - Cihan Inan
- Department of Molecular Biology and Genetics, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Ismail Saygin
- Department of Pathology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ilknur Erkoseoglu
- Department of Medical Pharmacology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Sena F Sezen
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Türkiye
- Drug and Pharmaceutical Technology Application and Research Center, Karadeniz Technical University, Trabzon, Turkey
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Günes A, Ayaz EA, Inan C. Effect of Tea Tree Oil Addition to Denture Liners Against Candida albicans and Bond Strength to Acrylic Denture Bases. INT J PROSTHODONT 2024; 37:41-48. [PMID: 37222545 DOI: 10.11607/ijp.8368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
PURPOSE To evaluate the effect of adding tea tree oil to denture liners on Candida albicans and bond strength to the acrylic denture base. MATERIALS AND METHODS Disc-shaped specimens were fabricated from silicone-based resilient liner (Tokuyama, Molloplast), acrylic-based hard liner (GC Reline), and acrylic-based soft liner (Visco-gel). Tea tree oil (TTO) was incorporated into the liners at varying concentrations (0% [control], 2%, 5%, 8%). C albicans were counted by viable colony count, and optical density (OD) was measured with a spectrophotometer. The tensile strength to heat polymerized acrylic denture base was measured in a universal testing machine. The compliance of the data to the distribution of normality was evaluated using the Shapiro Wilk test. Two-way ANOVA, Bonferroni correction, and paired sample t test were performed (α = .05). RESULTS The addition of TTO into liners provided a significant decrease in the OD values (P < .001). The control groups of the liners presented the highest colony counts, whereas increasing TTO decreased the results (P < .01). According to tensile bond strength test, 8% TTO addition resulted in a significant decrease for Tokuyama (P < .01) and Molloplast liners (P < .05), while 2% TTO resulted in significance for GC Reline (P < .001). CONCLUSIONS Denture liners containing increasing percentages of TTO presented lower amounts of C albicans colonies and decreased bond strength to the denture bases. When using TTO for its antifungal properties, the amount added should be carefully selected because the tensile bond strength may be affected.
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Gencer D, Inan C, Bayramoglu Z, Nalcacioglu R, Yin F, Zhu Z, Wang J, Hu Z, Pavlik L, Arif B, Demirbag Z, Demir I. Genome Sequencing and Organization of Three Geographically Different Isolates of Nucleopolyhedrovirus from the Gypsy Moth Reveal Significant Genomic Differences. Curr Genomics 2023; 24:146-154. [PMID: 38178988 PMCID: PMC10761337 DOI: 10.2174/0113892029249830231014163829] [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: 03/09/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 01/06/2024] Open
Abstract
Background The gypsy moth (Lymantria dispar L., Lepidoptera: Erebidae) is a worldwide pest of trees and forests. Lymantria dispar nucleopolyhedrovirus (LdMNPV) belongs to the Baculoviridae family and is an insect virus specific to gypsy moth larvae. In this study, we describe the complete genome sequences of three geographically diverse isolates, H2 (China), J2 (Japan), and T3 (Turkey), of Lymantria dispar multiple nucleopolyhedrovirus (LdMNPV). Methods The genomes of isolates H2, J2, and T3 were subjected to shotgun pyrosequencing using Roche 454 FLX and assembled using Roche GS De Novo Assembler. Comparative analysis of all isolates was performed using bioinformatics methods. Results The genomes of LdMNPV-H2, J2, and T3 were 164,746, 162,249, and 162,614 bp in size, had GC content of 57.25%, 57.30%, and 57.46%, and contained 162, 165, and 164 putative open reading frames (ORFs ≥ 150 nt), respectively. Comparison between the reference genome LdMNPV-5/6 (AF081810) and the genomes of LdMNPV-H2, J2, and T3 revealed differences in gene content. Compared with LdMNPV-5/6, ORF5, 6, 8, 10, 31, and 67 were absent in LdMNPV-H2, ORF5, 13, and 66 were absent in LdMNPV-J2, and ORF10, 13, 31, and 67 were absent in LdMNPV-T3. In addition, the gene encoding the mucin-like protein (ORF4) was split into two parts in isolates H2 and T3 and designated ORF4a and ORF4b. Phylogenetic analysis grouped isolates H2 and J2 in a different cluster than isolate T3, which is more closely related to the Turkish and Polish isolates. In addition, H2 was found to be closely related to a South Korean LdMNPV isolate. Conclusion This study provided a more detailed overview of the relationships between different geographic LdMNPV isolates. The results showed remarkable differences between groups at the genome level.
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Affiliation(s)
- Donus Gencer
- Trabzon University, Salpazarı Vocational School, Department of Property Protection and Security, 61670, Trabzon, Turkey
| | - Cihan Inan
- Karadeniz Technical University, Faculty of Science, Department of Molecular Biology and Genetics, 61080, Trabzon, Turkey
| | - Zeynep Bayramoglu
- Recep Tayyip Erdoğan University, Pazar Vocational School, Department of Plant and Animal Protection, 53330, Rize, Turkey
| | - Remziye Nalcacioglu
- Karadeniz Technical University, Faculty of Science, Department of Biology, 61080, Trabzon, Turkey
| | - Feifei Yin
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Zheng Zhu
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Jun Wang
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Zhihong Hu
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, P.R. China
| | - Lillian Pavlik
- Laboratory for Molecular Virology, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada
| | - Basil Arif
- Laboratory for Molecular Virology, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada
| | - Zihni Demirbag
- Karadeniz Technical University, Faculty of Science, Department of Biology, 61080, Trabzon, Turkey
| | - Ismail Demir
- Karadeniz Technical University, Faculty of Science, Department of Biology, 61080, Trabzon, Turkey
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Atli EI, Atli E, Inan C, Varol GF, Mail C, Erbilen EA, Yalcintepe S, Demir S, Gurkan H. Prenatal diagnosis and molecular cytogenetic characterization of partial dup (18p)/del (18q) due to a maternal pericentric inversion 18 in a foetus with multiple anomalies. Taiwan J Obstet Gynecol 2022; 61:504-509. [PMID: 35595446 DOI: 10.1016/j.tjog.2022.03.018] [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] [Accepted: 07/19/2021] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE The 18q terminal deletion with inverted duplication is an extremely rare abnormality, with only three confirmed cases in Europe to date. Here, we report, for the first time, a case of de novo 18q inv-dup-del in a Turkish pregnant woman. CASE REPORT A 30-year-old pregnant woman was referred for genetic analysis at her 25th gestational week due to foetal diaphragmatic hernia and rocker bottom feet. Cytogenetic analysis of the parents revealed a karyotype of 46,XX,inv(18) (p11.3q21.3) of the mother and a normal karyotype of the father. The foetal karyotype was defined as 46,XX,rec(18)del(18q)inv(18) (p11.3q21.3)mat. CONCLUSION To our knowledge, this is the first report of a prenatal diagnosis. Genetic counselling issues for this family, particularly affected individuals, include an increased likelihood of reduced fertility and a risk of recurrence of parental inversion equal to 1/2 in surviving offspring.
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Affiliation(s)
- Emine Ikbal Atli
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey.
| | - Engin Atli
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Cihan Inan
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Gülizar Fusun Varol
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Cisem Mail
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Esra Altan Erbilen
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Sinem Yalcintepe
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Selma Demir
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
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Yener C, Varol F, Inan C, Sütcü H, Ateş S, Sayin C. Relationship between second-trimester amniotic fluid and plasma levels of angiopoietin-2 and thrombomodulin with adverse pregnancy outcome. J OBSTET GYNAECOL 2021; 42:923-928. [PMID: 34693872 DOI: 10.1080/01443615.2021.1960293] [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: 10/20/2022]
Abstract
Our objective is to investigate maternal midtrimester plasma and amniotic fluid (AF) levels of angiopoietin-2 (Ang-2) and thrombomodulin (TM), which are involved in vascular remodelling and endothelium activation, in placental disorders including foetal growth restriction (FGR) and preeclampsia (PE). This prospective multiparametric pilot study was conducted at the Perinatology Division of Trakya University in a population undergoing genetic amniocentesis. Both AF and plasma aliquots were kept in -80 °C until ELISA assay. The pregnancies were followed up until the end of gestation in terms of obstetric results. Amniotic fluid and plasma aliquots from 127 pregnancies who underwent genetic amniocentesis between 16 and 24 weeks of gestation were analysed. During the final data evaluation, 39 were excluded with various reasons. Twelve subsequently developed FGR and 11 complicated with PE. The control group (n = 65) was consisted of women delivered >37th week with an uncomplicated outcome. The midtrimester maternal Ang-2 levels in both AF and plasma and also TM levels in plasma were found to be significantly increased in pregnancies who subsequently developed FGR or PE (p< .05). The midtrimester Ang-2, which rises in both plasma and AF and the midtrimester TM, which only significantly increase in plasma compartment in PE group, as compensatory mechanism may be the precursors of placental disorders including FGR and PE.Impact StatementWhat is already known on this subject? It is known that angiopoietin-2 (Ang-2) has important role in placental angiogenesis and vascular remodelling. TM which is a receptor for Ang-2 plays a protective role in pregnancy by preventing the uteroplacental circulation from thrombosis.What do the results of this study add? The present study demonstrates that both midtrimester maternal plasma Ang-2/TM and amniotic fluid (AF) Ang-2 levels were significantly higher in PE and FGR group than uncomplicated group. Midtrimester AF TM levels were not significantly higher in PE group than the control group.What the implications are of these findings for clinical practice and/or further research? In the clinical practice, high levels of midtrimester Ang-2 and TM in plasma may be used for the prediction of FGR and PE. Although amniocentesis is not practical in the clinical use, the levels of these two markers in both AF and plasma compartments may contribute to explain the pathophysiology of FGR and PE.
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Affiliation(s)
- Cem Yener
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Füsun Varol
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Cihan Inan
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Havva Sütcü
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Sinan Ateş
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Cenk Sayin
- Department of Obstetrics and Gynecology, Division of Perinatology, Trakya University Faculty of Medicine, Edirne, Turkey
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Yener C, Sayın C, Inan C, Altan E, Ateş S, Varol F. Letter to the editor related to the article "Surgical outcomes of cesarean scar pregnancy: an 8‑year experience at a single institution" published by Xu et al. Arch Gynecol Obstet 2021; 305:1127-1128. [PMID: 34175988 DOI: 10.1007/s00404-021-06132-5] [Citation(s) in RCA: 1] [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] [Received: 04/24/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Cem Yener
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey.
| | - Cenk Sayın
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Cihan Inan
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Esra Altan
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Sinan Ateş
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Füsun Varol
- Department of Obstetrics and Gynecology, Division of Perinatology, Faculty of Medicine, Trakya University, Edirne, Turkey
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Gursoy Erzincan S, Sayin NC, Inan C, Uzun I, Yapici Ugurlar O, Varol FG. Fetal cloacal dysgenesis sequence presented with first trimester megacystis and associated umbilical cord abnormalities. J Obstet Gynaecol Res 2020; 46:527-530. [PMID: 31955475 DOI: 10.1111/jog.14204] [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: 06/18/2019] [Accepted: 12/31/2019] [Indexed: 11/30/2022]
Abstract
Cloacal dysgenesis sequence occurs as a result of complete developmental failure of the urorectal septum. Typically, the sequence is featured by a smooth perineum, without any urethral, genital or anal openings. Its clinical manifestation differs throughout gestation. We report an interesting case of first trimester megacystis with associated umbilical cord abnormalities in a female fetus having cloacal dysgenesis sequence. This rare association reflecting high urinary pressure should first suggest urethral atresia. Our case highlights the importance of routine inspection of umbilical cord in the workup of early megacystis in terms of both etiology and fetal diagnosis.
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Affiliation(s)
- Selen Gursoy Erzincan
- Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Trakya University, Edirne, Turkey
| | - N Cenk Sayin
- Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Trakya University, Edirne, Turkey
| | - Cihan Inan
- Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Trakya University, Edirne, Turkey
| | - Isil Uzun
- Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Trakya University, Edirne, Turkey
| | | | - Fusun G Varol
- Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Trakya University, Edirne, Turkey
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Inan C, Sayin NC, Gurkan H, Atli E, Gursoy Erzincan S, Uzun I, Sutcu H, Dogan S, Ikbal Atli E, Varol F. Schizencephaly accompanied by occipital encephalocele and deletion of chromosome 22q13.32: a case report. Fetal Pediatr Pathol 2019; 38:496-502. [PMID: 31130048 DOI: 10.1080/15513815.2019.1604921] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Schizencephaly is a neuronal migration anomaly characterized by presence of a cleft between ependymal layer of the ventricle and pia mater of the cerebral cortex. It may be associated with additional cerebral abnormalities, including polymicrogyria, pachygyria, gray matter heterotopy, ventriculomegaly and corpus callosum agenesis. Case Report: We present a female fetus with schizencephaly accompanied by occipital encephalocele, polymicrogyria, agenesis of the corpus callosum, dysmorphic facies and cardiac muscular ventricular septal defect. Array comparative genomic hybridization (array-cGH) analysis revealed a deletion of chromosome 22q13.32 including FAM19A5 gene that is a member of TAFA family. Conclusions: Schizencephaly may be accompanied by unexpected structural and genetic anomalies as in our case with occipital encephalocele, dysmorphic facies, cardiac ventricular septal defect and chromosome 22q13.32 deletion.
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Affiliation(s)
- Cihan Inan
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - N Cenk Sayin
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Engin Atli
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Selen Gursoy Erzincan
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Isil Uzun
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Havva Sutcu
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Sumeyra Dogan
- Department of Radiology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Emine Ikbal Atli
- Department of Medical Genetics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Fusun Varol
- Division of Perinatology, Department of Obstetrics & Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
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Inan C, Sayin C, Dolgun N, Uzun I, Erzincan SG, Sutcu H, Varol F. Comparison of the efficacy of the immediate-release and osmotic push-pull system formulations of nifedipine for tocolysis. J Obstet Gynaecol Res 2019; 45:2351-2357. [PMID: 31608543 DOI: 10.1111/jog.14126] [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: 04/25/2019] [Accepted: 08/30/2019] [Indexed: 11/30/2022]
Abstract
AIM To compare the immediate-release (IR) and osmotic push-pull system formulations of nifedipine used for tocolysis in prolonging pregnancy, neonatal outcomes and maternal-fetal adverse effects. METHODS We evaluated 140 pregnant women who received the IR (n = 72) and osmotic push-pull system (n = 68) formulations of nifedipine for tocolysis due to threatened preterm labor between 240/7 and 336/7 weeks of gestation. Groups were compared in terms of efficacy of tocolysis in prolonging pregnancy for more than 48 h, 7 days and up to 37 weeks of gestation, total number of days gained for prolonging pregnancy, delivery weeks, maternal-fetal adverse effects and neonatal outcomes including ventilation support, need for intubation or surfactant, intraventricular hemorrhage, respiratory distress syndrome, necrotizing enterocolitis, admission to neonatal intensive care unit, neonatal death, Apgar scores at the 1st and 5th minutes. RESULTS There was no significant difference between the two groups in prolonging pregnancy for more than 48 h or 7 days, total number of days gained after tocolysis initiation, delivery weeks, the number of births at 340/7 -366/7 weeks or after 37 weeks of gestation (P > 0.05). Maternal-fetal adverse effects and neonatal outcomes were similar in both groups (P > 0.05). CONCLUSION The efficacy of IR and osmotic push-pull system formulations of nifedipine have similar effects in terms of tocolysis and neonatal outcomes, adverse effects. Osmotic push-pull system formulation of nifedipine may be an alternative medication in tocolytic therapy due to its ease of use and the absence of loading dose necessity.
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Affiliation(s)
- Cihan Inan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Cenk Sayin
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Nihal Dolgun
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Isil Uzun
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Selen G Erzincan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Havva Sutcu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Fusun Varol
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
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Cilingir IU, Sayin C, Sutcu H, Alici E, Inan C, Erzincan S, Yener C, Varol F. Comparison of postpartum sonographic findings after uneventful vaginal and cesarean section deliveries. J Ultrason 2019; 18:310-315. [PMID: 30763015 PMCID: PMC6444312 DOI: 10.15557/jou.2018.0045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2018] [Indexed: 11/22/2022] Open
Abstract
Objective: To prospectively determine the sonographic findings of the postpartum uterus 24 hours after vaginal delivery and cesarean section. Methods: Women who had uneventful vaginal delivery or cesarean section from July 2015 to May 2018 in a tertiary care hospital were prospectively included. Uterine lengths, endometrium, amout of free fluid, the distance between the uterine fundus-promontorium and uterine fundus-L5 were evaluated 24 hours after delivery. Results: The mean (min-max) endometrial thickness in the vaginal delivery and cesarean section groups were 13.3 (4-25) and 12.4 (4-29) mm, respectively. Fundus-cervix length was significantly higher in the vaginal delivery group compared to the cesarean section group (184.05 ± 16.8 vs 163.6 ± 6.7 mm, p <0.001). The measurements of anterior and anterior-posterior walls of the uterus, anteroposterior uterine length and uterine width were similar in both groups. Promontorium-fundus length was significantly higher in patients who delivered vaginally than those by cesarean section (123.3 ± 13.6 vs 108.7 ± 23.3 mm, p = 0.005). Conclusion: The measurement of L5-fundus distance is a simple and effective technique to evaluate the size of the uterus. Homogenous endometrium up to 30 mm in asymptomatic patients may be a normal finding 24 hours after delivery. The results of this study may be helpful in the decision-making process in cases of early postpartum hemorrhage or hemodynamic instability. Objective: To prospectively determine the sonographic findings of the postpartum uterus 24 hours after vaginal delivery and cesarean section. Methods: Women who had uneventful vaginal delivery or cesarean section from July 2015 to May 2018 in a tertiary care hospital were prospectively included. Uterine lengths, endometrium, amout of free fluid, the distance between the uterine fundus-promontorium and uterine fundus-L5 were evaluated 24 hours after delivery. Results: The mean (min–max) endometrial thickness in the vaginal delivery and cesarean section groups were 13.3 (4–25) and 12.4 (4–29) mm, respectively. Fundus-cervix length was significantly higher in the vaginal delivery group compared to the cesarean section group (184.05 ± 16.8 vs 163.6 ± 6.7 mm, p <0.001). The measurements of anterior and anterior-posterior walls of the uterus, anteroposterior uterine length and uterine width were similar in both groups. Promontorium-fundus length was significantly higher in patients who delivered vaginally than those by cesarean section (123.3 ± 13.6 vs 108.7 ± 23.3 mm, p = 0.005). Conclusion: The measurement of L5-fundus distance is a simple and effective technique to evaluate the size of the uterus. Homogenous endometrium up to 30 mm in asymptomatic patients may be a normal finding 24 hours after delivery. The results of this study may be helpful in the decision-making process in cases of early postpartum hemorrhage or hemodynamic instability.
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Affiliation(s)
- Isil Uzun Cilingir
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Cenk Sayin
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Havva Sutcu
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Ebru Alici
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Cihan Inan
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Selen Erzincan
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Cem Yener
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
| | - Fusun Varol
- Trakya University, Faculty of Medicine, Department of Perinatology , Edirne , Turkey
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11
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Inan C, Sayin NC, Gurkan H, Erzincan SG, Uzun I, Sutcu H, Atli E, Varol F. Unusual facio-upper arm band of a fetus mimicking amniotic band syndrome. J Obstet Gynaecol Res 2019; 45:927-930. [PMID: 30656803 DOI: 10.1111/jog.13905] [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: 07/11/2018] [Accepted: 12/08/2018] [Indexed: 11/27/2022]
Abstract
Amniotic band syndrome can lead to a wide spectrum of congenital abnormalities including orofacial and visceral defects. It is associated with malformations in truncal, craniofacial regions and the limbs, whereas it sometimes may imitate some genetic disorders. Here, we present an atypical case mimicking amniotic band syndrome with a facio-upper arm band that was having multiple fetal structural abnormalities including scoliosis, bilateral cleft lip and palate, upper limb abnormality, unilateral anophthalmia with contralateral microphthalmia, left hypertrophic kidney and severe ventriculomegaly.
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Affiliation(s)
- Cihan Inan
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - N Cenk Sayin
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Hakan Gurkan
- Faculty of Medicine, Department of Medical Genetics, Trakya University, Edirne, Turkey
| | - Selen G Erzincan
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Isil Uzun
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Havva Sutcu
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Engin Atli
- Faculty of Medicine, Department of Medical Genetics, Trakya University, Edirne, Turkey
| | - Fusun Varol
- Faculty of Medicine, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
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12
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Erzincan SG, Sayin NC, Inan C, Yuce MA, Varol FG, Basaran S. Cell-free DNA testing: is it reliable? A case report. CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog4051.2018] [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: 11/01/2022]
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13
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Inan C, Cenk Sayin N, Gurkan H, Erzincan SG, Uzun I, Sutcu H, Atli EI, Varol F. A large posterior encephalocele associated with severe ventriculomegaly, cerebellar atrophy and transposition of the great arteries. J Clin Ultrasound 2018; 46:588-590. [PMID: 30105815 DOI: 10.1002/jcu.22625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/27/2018] [Accepted: 06/16/2018] [Indexed: 06/08/2023]
Abstract
Posterior encephalocele is a neural tube defect, which is a sac-like protrusion of the neural tissue and cerebrospinal fluid through a defect in the occipital bone. This embryonic anomaly may coexist with cortical dysplasia, agenesis of the corpus callosum, hydrocephalus, microcephaly, craniofacial abnormalities, ventricular and atrial septal defect. We report a case of a large posterior encephalocele in a fetus accompanied by unexpected major abnormalities including transposition of the great arteries, severe ventriculomegaly and cerebellar atrophy. Postnatal surgical corrections of the posterior encephalocele and then of the transposition of the great arteries were performed but the neonate died 2 months after delivery.
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Affiliation(s)
- Cihan Inan
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Niyazi Cenk Sayin
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Selen Gursoy Erzincan
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Isil Uzun
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Havva Sutcu
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Emine Ikbal Atli
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Fusun Varol
- Department of Obstetrics and Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
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14
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Inan C, Sayin NC, Dolgun ZN, Erzincan SG, Uzun I, Sutcu H, Varol F. The relation of fetal colon and rectum diameters with labor in healthy late-third trimester pregnancies. Eur J Obstet Gynecol Reprod Biol 2018; 231:54-59. [PMID: 30321789 DOI: 10.1016/j.ejogrb.2018.10.020] [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: 04/24/2018] [Revised: 09/30/2018] [Accepted: 10/06/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To investigate the associations of fetal colon-rectum diameters with labor and fetal distress or meconium passage in healthy pregnancies in the late 3rd trimester. STUDY DESIGN A total of 162 healthy, singleton pregnant women at ≥360/7 weeks who were in the latent-phase of labor (n = 69) or those not in labor (n = 93, controls) at the time of ultrasound examination were enrolled. Fetal colon (ascending, transverse, descending, sigmoid) and rectum diameters, Doppler indices of materno-fetal vessels were measured. Data were analyzed according to the mode of delivery. RESULTS Fetal colon-rectum diameters were smaller in women in labor compared to controls (p = 0.001). Positive correlations were observed between fetal colon-rectum diameters and interval between ultrasound and labor onset in the control group except for those who had scheduled cesarean sections (C/S) (p = 0.001). Similar colon-rectum measurements were obtained in fetuses delivered via cesarean section due to fetal distress or to other indications (p > 0.05). In women who had uterine contractions during ultrasound examination; later delivered by vaginal route, no association was observed between Apgar scores and colon-rectum diameters during latent-phase (p > 0.05), and also there were significant positive correlations between different segments of colon-rectum diameters and duration of neonatal meconium passage (p < 0.05). CONCLUSION Fetal colon and rectum diameters are smaller during labor and the measurements tend to diminish as the labor approaches, but do not indicate fetal distress.
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Affiliation(s)
- Cihan Inan
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey.
| | - N Cenk Sayin
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
| | - Z Nihal Dolgun
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
| | - Selen Gursoy Erzincan
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
| | - Isil Uzun
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
| | - Havva Sutcu
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
| | - Fusun Varol
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Edirne, Turkey
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15
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Dolgun ZN, Inan C, Altintas AS, Okten SB, Karadag C, Sayin NC. Is there A Relationship between route of delivery, perinatal characteristics, and neonatal outcome in preterm birth? Niger J Clin Pract 2018. [PMID: 29519979 DOI: 10.4103/njcp.njcp_333_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Preterm birth is one of the most challenging problems in obstetric care and it is closely related to perinatal mortality and morbidity. The aim of the current study was to document our experience with preterm births and to analyze the association between perinatal variables and clinical outcomes. Methodology In this retrospective study, data were derived from the medical records of 785 singleton preterm births delivered in the obstetrics and gynecology department of our institution. Variables under investigation were maternal and gestational ages, fetal gender, route of delivery (vaginal vs. cesarean section [C/S]), causes of preterm birth, birth weight, placental weight, umbilical cord length, and Apgar scores at the 1st and 5th min. Results Pregnant women with advanced age (≥35 years) were more likely to undergo C/S (P < 0.001). Apgar score at the 1st and 5th min was influenced significantly by gestational age (P < 0.001), newborn birth weight (P < 0.001), placental weight (P < 0.001), and umbilical cord length (P < 0.001). Infants delivered due to antepartum fetal distress indication had remarkably lower Apgar scores at the 1st min and the birth weight seemed to be positively correlated with Apgar scores at both 1st (P < 0.001) and 5th min (P < 0.001). Apgar scores both at the 1st and 5th min were positively correlated with placental weight (R: 0.239 and 0.231, respectively, and P < 0.001 for both) and length of umbilical cord (R:0.228 and 0.211, respectively, and P < 0.001 for both). Conclusion Advanced age pregnancies have higher C/S rates, but Apgar scores are significantly correlated with infant characteristics. Umbilical cord length and placental weight might be the new add-on predictors of postpartum well-being in premature infants.
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Affiliation(s)
- Z N Dolgun
- Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - C Inan
- Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - A S Altintas
- Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - S B Okten
- Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - C Karadag
- Department of Obstetrics and Gynecology, Pendik Research and Education Hospital, Marmara University, Istanbul, Turkey
| | - N C Sayin
- Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
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16
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Inan C, Sayin NC, Dolgun ZN, Erzincan SG, Uzun I, Sutcu H, Sut N, Varol FG. Effects of betamethasone on fetoplacental and maternal hemodynamics in preterm pregnancies. Int J Gynaecol Obstet 2018; 141:354-359. [PMID: 29493778 DOI: 10.1002/ijgo.12478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/12/2017] [Revised: 12/18/2017] [Accepted: 02/27/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To evaluate the possible effects of prenatal steroid administration on Doppler parameters of the umbilical artery, uterine artery, middle cerebral artery, and ductus venosus, the cerebroplacental ratio, and the amniotic fluid index in preterm fetuses. METHODS The present prospective observational study was performed at the Perinatology Department of Trakya University, Edirne, Turkey, between June 1, 2015, and September 1, 2016. It included patients with healthy singleton pregnancies who had received betamethasone at 24-34 weeks of pregnancy. Doppler parameters were measured before (0 hours) and 24, 48, and 72 hours after the administration of betamethasone (two intramuscular doses of 12 mg each, administered 24 hours apart). RESULTS There were 68 patients included. Pairwise comparisons demonstrated that, at 72 hours after betamethasone administration, the umbilical artery resistance index (P=0.038), the middle cerebral artery systolic/diastolic velocity ratio (P=0.007), and the amniotic fluid index (P=0.017) were reduced, whereas the end-diastolic velocity of the middle cerebral artery was increased (P=0.012), compared with baseline values. CONCLUSION Betamethasone had favorable effects on fetal cerebral circulation, with increased end-diastolic velocity in the middle cerebral artery; this could represent a positive effect on cerebral blood circulation and decreased flow resistance in the umbilical artery.
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Affiliation(s)
- Cihan Inan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - N Cenk Sayin
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Zehra N Dolgun
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Selen G Erzincan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Isil Uzun
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Havva Sutcu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Necdet Sut
- Department of Biostatistics, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Fusun G Varol
- Department of Obstetrics and Gynecology, Faculty of Medicine, Trakya University, Edirne, Turkey
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17
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Erzincan SG, Varol FG, Inan C, Sayin NC. Relationship between second-trimester amniotic fluid levels of Prokineticin-1 and Matrix Metalloproteinase-2 with adverse pregnancy outcome. Placenta 2018; 62:25-27. [PMID: 29405963 DOI: 10.1016/j.placenta.2017.12.015] [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: 08/17/2017] [Revised: 12/02/2017] [Accepted: 12/17/2017] [Indexed: 11/17/2022]
Abstract
To investigate the levels of Prokineticin-1 (PROK1) and matrix metalloproteinase-2 (MMP-2) in second-trimester amniotic fluid (AF). AF samples were investigated in 81 patients. AF-PROK1 and AF-MMP-2 were not significantly associated with adverse pregnancy outcomes (preeclampsia, intrauterine growth retardation, spontaneous preterm birth, gestational diabetes, gestational hypertension). AF-PROK1 levels in patients with abnormal first-trimester screening were significantly higher than those who underwent amniocentesis due to abnormal second-trimester screening tests (p = .04). AF-PROK1 or AF-MMP-2 do not have a role in the prediction of adverse pregnancy outcomes.
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Affiliation(s)
- Selen G Erzincan
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Edirne, Turkey.
| | - Fusun G Varol
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Edirne, Turkey.
| | - Cihan Inan
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Edirne, Turkey.
| | - N Cenk Sayin
- Trakya University, Faculty of Medicine, Department of Obstetrics & Gynecology, Division of Perinatology, Edirne, Turkey.
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18
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Inan C, Sayin NC, Dolgun ZN, Gurkan H, Erzincan SG, Uzun I, Sutcu H, Ates S, Atli E, Varol F. Prenatal diagnosis of chromosomal polymorphisms: most commonly observed polymorphism on Chromosome 9 have associations with low PAPP-A values. J Matern Fetal Neonatal Med 2017; 32:1688-1695. [DOI: 10.1080/14767058.2017.1416079] [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: 10/18/2022]
Affiliation(s)
- Cihan Inan
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - N. Cenk Sayin
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Z. Nihal Dolgun
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Hakan Gurkan
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Selen Gursoy Erzincan
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Isil Uzun
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Havva Sutcu
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Sinan Ates
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Emine Atli
- Department of Medical Genetics, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Fusun Varol
- Department of Obstetrics & Gynecology, Trakya University Faculty of Medicine, Edirne, Turkey
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19
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Inan C, Muratoglu H, Arif BM, Demirbag Z. Transcriptional analysis of the putative glycosyltransferase gene (amv248) of the Amsacta moorei entomopoxvirus. Virus Res 2017; 243:25-30. [PMID: 29020603 DOI: 10.1016/j.virusres.2017.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/05/2017] [Accepted: 10/07/2017] [Indexed: 11/17/2022]
Abstract
Amsacta moorei entomopoxvirus (AMEV), the most studied member of the genus Betaentomopoxvirus, was initially isolated from Red Hairy caterpillar larvae, Amsacta moorei. According to genome sequence and previous studies it was shown that amv248 encodes a putative glycosyltransferase that is the only conserved attachment protein in betaentomopoxviruses. Transcriptional analysis of the amv248 gene by RT-PCR and qPCR showed that transcription starts at 6h post infection (hpi). Also, transcription was not affected by a DNA replication inhibitor but was severely curtailed by a protein synthesis inhibitor. These results indicate that amv248 belongs to the intermediate class of gene expression. 5' and 3' untranslated regions analysis revealed that transcription initiates at position -126 relative to the translational start site, and ends between 50 and 83 bases after the stop codon. To narrow down the size and location of the gene's promoter, the upstream region as well as several different sized deletions thereof were generated and cloned upstream of a luciferase reporter gene. The constructs were used to measure the Firefly and Renilla luciferase activities in dual assays. The results showed that luciferase activity decreased when bases -198 to -235 of amv248 upstream region were missing. Sequence analysis among the intermediate gene promoters of AMEV showed that TTTAT(T/A)TT(T/A)2TTA is possibly a common motif, however, further investigations are needed to confirm this conclusion.
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Affiliation(s)
- Cihan Inan
- Department of Biology, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey; Department of Molecular Biology and Genetics, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Hacer Muratoglu
- Department of Molecular Biology and Genetics, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Basil M Arif
- Laboratory for Molecular Virology, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada
| | - Zihni Demirbag
- Department of Biology, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey.
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20
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Inan C, Varol FG, Erzincan SG, Uzun I, Sutcu H, Sayin NC. Use of prokineticin-1 (PROK1), pregnancy-associated plasma protein A (PAPP-A) and PROK1/PAPP-A ratio to predict adverse pregnancy outcomes in the first trimester: a prospective study. J Matern Fetal Neonatal Med 2017; 31:2685-2692. [PMID: 28675948 DOI: 10.1080/14767058.2017.1351536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION To compare the predictive effectiveness levels of prokineticin-1 (PROK1), pregnancy-associated plasma protein A (PAPP-A) and the PROK1/PAPP-A ratio in the first trimester for preeclampsia (PE), foetal growth restriction (FGR), gestational diabetes mellitus (GDM) and spontaneous preterm birth (SPB). MATERIALS AND METHODS A total of randomly selected 162 pregnant women were included. Peripheral blood samples were obtained between 110/7 and 136/7 gestational weeks (GWs). All women were followed throughout the pregnancy and classified into five groups as having PE, FGR, GDM, SPB and uncomplicated pregnancies. The cut-off levels of the markers were identified to predict adverse outcomes. RESULTS PROK1 predicted PE with 83.3% sensitivity, 85.7% specificity at a value of >293.4 pg/mL; at a value of >260.2 pg/mL, PROK1 predicted FGR with 85.7% sensitivity, 72.5% specificity in the first trimester. The area under receiver operating characteristic (ROC) curve of PAPP-A was lower than that of PROK1 and PROK1/PAPP-A in differentiating PE and FGR from the uncomplicated group (p < .001). PROK1 levels and the PROK1/PAPP-A ratios in the SPB and GDM groups were lower than in the uncomplicated group (p < .01). CONCLUSIONS Elevated PROK1 in the first trimester is a more effective marker than PAPP-A in the prediction of PE and FGR. Lower PROK1 levels are associated with the development of SPB and GDM.
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Affiliation(s)
- Cihan Inan
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
| | - Fusun Gulizar Varol
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
| | - Selen Gursoy Erzincan
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
| | - Isil Uzun
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
| | - Havva Sutcu
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
| | - N Cenk Sayin
- a Trakya University Faculty of Medicine, Obstetrics and Gynecology , Edirne , Turkey
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21
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Inan C, Sayin NC, Tastekin E, Gursoy-Erzincan S, Uzun I, Sarikas N, Varol FG. Placental chorioangioma complicated with preterm delivery: A case report. Electron J Gen Med 2017. [DOI: 10.29333/ejgm/81873] [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: 11/21/2022]
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Abstract
Objective: To document the neonatal outcomes of preterm birth in twin pregnancies and to investigate whether perinatal and obstetric parameters are associated with clinical outcomes. Methods: This retrospective trial was conducted on data gathered from 176 preterm twins delivered in the obstetrics and gynecology department of our tertiary care center. Data extracted from medical files of 88 pregnant women who gave preterm birth (at 260/7 to 366/7 gestational weeks) to twins were analyzed. Maternal/fetal descriptive and obstetric parameters, sonographic data, route of delivery, indication for cesarean section, birth weight, Apgar scores, head circumference, umbilical cord length and placental weight were noted. Results: The average age of the pregnant women was 28.8±6.4 years and ultrasonographic gestational age was 31.9±2.6 weeks. Apgar scores at 1st minute were affected significantly by fetal body weight (p=0.001), gestational age (p=0.001), height (p=0.004) and head circumference (p=0.011). None of these variables exhibited a noteworthy effect on Apgar scores at 5th minute. Conclusion: Efforts must be made to achieve advancement of gestational age until delivery in the follow-up preterm of twins. A well-established algorithm with special emphasis to risk factors is necessary to standardize and popularize the appropriate management strategy.
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Affiliation(s)
- Zehra Nihal Dolgun
- Zehra Nihal Dolgun, MD. Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - Cihan Inan
- Cihan Inan, MD. Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - Ahmet Salih Altintas
- Ahmet Salih Altintas, MD. Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - Sabri Berkem Okten
- Sabri Berkem Okten, MD. Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
| | - Niyazi Cenk Sayin
- Niyazi Cenk Sayin, MD. Department of Obstetrics and Gynecology, Trakya University Medicine Faculty, Edirne, Turkey
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23
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Uzun I, Has R, Alici E, Ozdemir M, Inan C, Erzincan S. Recurrent increased nuchal translucency: a first trimester presentation of familial 13p satellite deletion. Balkan J Med Genet 2016; 19:103-106. [PMID: 27785415 PMCID: PMC5026287 DOI: 10.1515/bjmg-2016-0014] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Chromosome 13 is one of the acrocentric chromosomes of the human karyotype. Acrocentric chromosomes are the most variable chromosomes in the human karyotype and these variations appear to have no clinical consequences. To the best of our knowledge, this is the first reported case of a first trimester presentation of a 13 short arm satellite deletion with markedly increased nuchal translucency (NT). In this case, the 13p short arm satellite deletion was associated with increased NT in two pregnancies from the same couple.
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Affiliation(s)
- I Uzun
- Department of Obstetrics and Gynecology, Acibadem Hospital, Istanbul, Turkey
| | - R Has
- Department of Obstetrics and Gynecology, Istanbul University Medical School, Istanbul, Turkey
| | - E Alici
- Department of Obstetrics and Gynecology, Istanbul University Medical School, Istanbul, Turkey
| | - M Ozdemir
- Department of Obstetrics and Gynecology, Suleymaniye Maternity Hospital, Istanbul, Turkey
| | - C Inan
- Department of Obstetrics and Gynecology, Kulu Hospital, Konya, Turkey
| | - S Erzincan
- Department of Obstetrics and Gynecology, Istanbul University Medical School, Istanbul, Turkey
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24
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Abstract
Objective: To determine the biochemical and hormonal differences in polycystic ovary syndrome (PCOS) patients with and without polycystic ovary (PCO) morphology and to evaluate the outcomes resulting from those differences. Methods: The study included a total of 83 patients with PCOS; 43 of them had PCO morphology (Group-I) and 40 did not (Group-II). Serum LDL, HDL, total cholesterol, triglyceride (TG), total testosterone (T), follicle stimulating hormone (FSH), luteinizing hormone (LH), 17b-estradiol (E2), prolactin (PRL), thyroid stimulating hormone (TSH), sex hormone binding globulin (SHBG), glucose and insulin levels were determined. Homoeostatic model assessment insulin resistance (HOMA-IR) index was calculated. Results: The two groups were similar with respect to BMI. The systolic and diastolic blood pressure measurements of Group-I were significantly lower (p<0.01). Serum mean level of LH (p=0.026) and the mean LH/FSH (p=0.001) level of Group-I were significantly higher than Group-II. The total cholesterol and triglyceride levels of Group-I were significantly lower (p<0.05, p<0.01). The mean HOMA-IR level of Group-I was significantly lower than Group-II (p=0.004). Conclusions: The group without PCO morphology had a higher risk than the other group in terms of increased insulin resistance, dyslipidemia and cardiovascular diseases due to effects of hyperandrogenism.
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Affiliation(s)
- Cihan Inan
- Dr. Cihan Inan, Department of Obstetrics and Gynecology, Kulu State Hospital, Konya, Turkey
| | - Cihan Karadag
- Dr. Cihan Karadag, Marmara University Pendik Training and Research Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
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Ogutcuoglu B, Karadag C, Inan C, Dolgun ZN, Yoldemir AT, Aslanova L. Diagnostic utility of saline infusion doppler sonohysterography in endometrial mass lesions. Pak J Med Sci 2016; 32:284-8. [PMID: 27182224 PMCID: PMC4859007 DOI: 10.12669/pjms.322.9452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the importance of saline infusion Doppler sonohysterography (SIS-D) in the assessment of transvaginal ultrasound (TVUSG)-suspected intrauterine mass lesions in women complaining about abnormal uterine bleeding with respect to hysteroscopy (H/S) and pathologic diagnosis. METHODS This study was conducted on patients, who visited to our clinic with abnormal uterine bleeding and whose TVUSGs indicated intrauterine masses. The study covered a total of 100 patients. SIS-D and hysteroscopy were performed on those 100 patients. SIS-D results were compared with hysteroscopy results. The relation between SIS-D findings and pathology results were evaluated. RESULTS For SIS; specificity was 96%, sensitivity was 60%, positive predictive value (PPV) was 87.8%, negative predictive value (NPV) was 83.3%, and the accuracy rate was 87%. For TVUSG; PPV was 75%. According to SIS-D, 92.2% of the lesions that had single-vessel feeding patterns were endometrial polyps, and this was statistically significant (p<0.0001). 57.1% of the lesions that had multiple-vessel feeding patterns were submucous myomas, and this was statistically significant (p<0.0001). CONCLUSION SIS should be performed in patients before hysteroscopy because it will protect a considerable number of patients from unnecessary invasive procedures. SIS-D gives an idea on the histopathology of the mass.
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Affiliation(s)
- Bilge Ogutcuoglu
- Dr. Bilge Ogutcuoglu, Medeniyet University Goztepe Training and Research Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Cihan Karadag
- Dr. Cihan Karadag, Marmara University Pendik Training and Research Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Cihan Inan
- Dr. Cihan Inan, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Zehra Nihal Dolgun
- Dr. Zehra Nihal Dolgun, Department of Obstetrics and Gynecology, Trakya University, Edirne, Turkey
| | - Ahmet Tevfik Yoldemir
- Dr. Ahmet Tevfik Yoldemir, Marmara University Pendik Training and Research Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Lale Aslanova
- Dr. Lale Aslanova, Marmara University Pendik Training and Research Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
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26
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Abstract
Tetrasomy 18p, characterized by the presence of four copies of the short arm of chromosome 18, is considered to occur with the nondisjunction in meiosis II after the errors in the meiotic and early postmeiotic mitotic division in the centromere. It is accompanied by various abnormalities including congenital heart defects, lower extremity abnormalities, micrognathia, high arched palate, kyphoscoliosis, microcephaly, myelomeningocele, hernia and renal anomalies. We present the first case of a dichorionic diamniotic twin pregnancy in which both fetuses were affected by tetrasomy 18p, but with discordant morphology, detected in one twin in the first but in the other in the second trimester.
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Affiliation(s)
- Cihan Inan
- a Division of Perinatology, Faculty of Medicine , Department of Obstetrics & Gynecology , Trakya University , Edirne , Turkey
| | - N Cenk Sayın
- a Division of Perinatology, Faculty of Medicine , Department of Obstetrics & Gynecology , Trakya University , Edirne , Turkey
| | - Emine Atlı
- b Department of Medical Genetics , Faculty of Medicine, Trakya University , Edirne , Turkey
| | - Selma Ulusal
- b Department of Medical Genetics , Faculty of Medicine, Trakya University , Edirne , Turkey
| | - Selen Erzincan
- a Division of Perinatology, Faculty of Medicine , Department of Obstetrics & Gynecology , Trakya University , Edirne , Turkey
| | - Isil Uzun
- a Division of Perinatology, Faculty of Medicine , Department of Obstetrics & Gynecology , Trakya University , Edirne , Turkey
| | - Hakan Gurkan
- b Department of Medical Genetics , Faculty of Medicine, Trakya University , Edirne , Turkey
| | - Füsun G Varol
- a Division of Perinatology, Faculty of Medicine , Department of Obstetrics & Gynecology , Trakya University , Edirne , Turkey
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Berghoff A, Inan C, Ricken G, Widhalm G, Dieckmann K, Birner P, Oberndorfer F, Dome B, Bartsch R, Zielinski C, Preusser M. Tumor-Infiltrating Lymphocytes (Tils) and Pd-L1 Expression in Non- Small Cell Lung Cancer Brain Metastases (Bm) and Matched Primary Tumors (Pt). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.103] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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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28
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Demirci YE, Inan C, Mert Z, Maytalman D, Baykal AT, Günel A, Korkut ŞV, Hasançebi S. Proteomic investigation of compatible interaction between wheat and yellow rust. N Biotechnol 2012. [DOI: 10.1016/j.nbt.2012.08.361] [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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29
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Zingg W, Cartier V, Inan C, Touveneau S, Clergue F, Pittet D, Walder B. Sustained reduction of catheter-associated bloodstream infections by simulator-training and self-assessment. BMC Proc 2011. [PMCID: PMC3239423 DOI: 10.1186/1753-6561-5-s6-o13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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30
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Zingg W, Sandoz L, Inan C, Cartier V, Clergue F, Pittet D, Walder B. Hospital-wide survey of the use of central venous catheters. J Hosp Infect 2011; 77:304-8. [DOI: 10.1016/j.jhin.2010.11.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Accepted: 11/18/2010] [Indexed: 11/30/2022]
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31
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Licker M, Schnyder JM, Frey JG, Diaper J, Cartier V, Inan C, Robert J, Bridevaux PO, Tschopp JM. Impact of aerobic exercise capacity and procedure-related factors in lung cancer surgery. Eur Respir J 2010; 37:1189-98. [DOI: 10.1183/09031936.00069910] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Zingg W, Sax H, Inan C, Cartier V, Diby M, Clergue F, Pittet D, Walder B. Hospital-wide surveillance of catheter-related bloodstream infection: from the expected to the unexpected. J Hosp Infect 2009; 73:41-6. [DOI: 10.1016/j.jhin.2009.05.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 05/22/2009] [Indexed: 12/13/2022]
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Abstract
This is an 11 month old girl who has been referred to our institute for a seizure disorder. Her physical examination showed angiomas on the left side of her face, and more extensive and prominent ones on her palms and soles. Her right face and arm were smaller than the left, associated with hypotonia and moderate weakness in the right forearm. Computerized tomography of head showed intracranial calcification in the left fronto-parietal region, and brain MRI, with gadolinium, revealed an extensive leptomeningeal angioma over the entire left hemisphere. This case was diagnosed as Sturge-Weber syndrome with unusual cutaneous manifestations.
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Affiliation(s)
- C Inan
- State University of New York at Brooklyn, Division of Pediatric Neurology, Brooklyn 11203, USA.
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34
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Abstract
The neuronal ceroid lipofuscinoses are among the most common forms of progressive neurodegenerative disease of childhood. They appear to be panethnic, but there is a special predilection of the infantile subtype in Finland. In the United States, the Batten disease registry of 731 cases shows that juvenile neuronal ceroid lipofuscinosis (JNCL) is the most common form. Here, we report on the first known African-American child with JNCL. Genetic study showed the 1.02-kb deletion typically seen in JNCL cases.
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Affiliation(s)
- C Inan
- Department of Neurology, State University of New York, Health Science Center at Brooklyn 11203, USA
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35
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Abstract
The protective effects of cobalt and vitamin E in iron overloaded rats were investigated. Rats were divided into four groups: group 1 as control, group 2 received only iron; group 3 iron and cobalt, group 4 iron and vitamin E. All injections were given 3 times per week for 3 weeks. Biochemical and histopathologic studies were done on samples of blood and liver, spleen, and intestine. The results showed that the administration of iron with cobalt or vitamin E decreased lipid peroxidation and the levels of hypoxanthine in all tissues (P < .001). Tissue associated myeloperoxidase (MPO) activity was increased in all iron-overloaded animals. However, vitamin E and cobalt decreased MPO activity (P < .001) in all tissues with the exception of the intestines, where cobalt was ineffective. Cobalt therapy increased hemoglobin, hematocrit, and MCV (P < .05). In contrast to SGPT activity, SGOT activity was significantly increased in all groups but more so in group 3 animals. The increased activity of serum SGOT levels might be related to the mechanical injury by cardiac puncture. The most striking histopathologic finding was the presence of granulomas in the livers of 71% of the animals of group 2 and in 66.6% of group 3. Interestingly, granulomas developed in only 33.3% of group 4 animals, whereas no granulomas were found in the livers of control animals (group 1). In this article we report that cobalt is as effective as vitamin E in significantly reducing iron-induced biochemical changes in an iron-overload in vivo model. We further describe for the first time the presence of extensive granuloma formation in iron-overloaded liver tissue and the greater efficiency of vitamin E over cobalt in protecting against granuloma formation in iron overload.
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Affiliation(s)
- C Inan
- Department of Pediatrics, Hacettepe Children's Hospital, Ankara, Turkey
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36
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Abstract
The protective effects of high dose antenatal vitamin E on hypoxemia in newborn rats were investigated. The subjects were 1-d-old Wistar rats weighing 5-6 g which were born to mothers weighing 245-250 g. Three groups of rat pups, each consisting of eight newborn rats, were used: nontreated control group, hypoxic group, and vitamin E group. The mothers of pups in the last group were given vitamin E (2000 mg/kg/d) antenatally on 3 consecutive days. Hypoxia was induced by breathing of a mixture of 8% oxygen and 92% nitrogen for 3 h. Then pups were allowed to inhale normal atmospheric air for 30 min. All rats were killed on the first day of life after the procedure of hypoxia and reoxygenation. The brains, lungs, livers, intestines, and kidneys were studied biochemically and histopathologically. The hypoxia-induced biochemical changes were determined by measuring lipid peroxidation and myeloperoxidase activity. Vitamin E effectively inhibited hypoxia-induced lipid peroxidation in liver and intestines, and decreased the levels of thiobarbituric acid-reactive substances in brain. In agreement with lipid peroxidation, tissue associated myeloperoxidase activity was increased in liver, intestines, and kidneys, but not in brain and lungs, of the hypoxic group. Histopathologic changes in intestines were epithelial separation and submucosal polymorphonuclear leukocyte infiltration. In the liver, leukocyte infiltration was observed only near the portal areas. These changes were not observed in the vitamin E group. It was concluded that high doses of antenatal vitamin E may protect the newborn rat pups against hypoxia-induced tissue injury.
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Zuellig RA, Rader C, Schroeder A, Kalousek MB, Von Bohlen und Halbach F, Osterwalder T, Inan C, Stoeckli ET, Affolter HU, Fritz A. The axonally secreted cell adhesion molecule, axonin-1. Primary structure, immunoglobulin-like and fibronectin-type-III-like domains and glycosyl-phosphatidylinositol anchorage. Eur J Biochem 1992; 204:453-63. [PMID: 1311675 DOI: 10.1111/j.1432-1033.1992.tb16655.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Axonin-1 is an axon-associated cell adhesion molecule (AxCAM) of the chicken, which promotes neurite outgrowth by interaction with the AxCAM L1(G4) of the neuritic membrane. Here we report the cloning and sequence determination of a cDNA encoding axonin-1. Peptides generated by enzymatic cleavage showed similarity to the AxCAM F11. Degenerated polymerase chain reaction (PCR) primers were designed and an axonin-1 fragment was amplified from mRNA of embryonic retina. Screening of a cDNA library from embryonic brain resulted in the isolation of a 4.0-kb cDNA insert with an open reading frame of 3108 nucleotides. The deduced polypeptide of 1036 amino acids includes a putative hydrophobic N-terminal signal sequence of 23 or 25 amino acids and a C-terminal hydrophobic sequence of 29 amino acids which is suggestive of sequences serving as signal for the attachment of a glycosyl-phosphatidylinositol (glycosyl-PtdIns) anchor. The putative mature form of axonin-1 comprises six immunoglobulin-like repeats, followed by four fibronectin-type III repeats. Axonin-1 exhibits 75% amino acid identity with the AxCAM TAG-1 of the rat, suggesting that it is the chicken homologue of TAG-1. Like TAG-1, axonin-1 is glycosyl-PtdIns-anchored to the neuronal membrane; in contrast to TAG-1, it does not exhibit an Arg-Gly-Asp sequence.
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Affiliation(s)
- R A Zuellig
- Institute of Biochemistry, University of Zurich, Switzerland
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