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Pande S, Vary C, Yang X, Liaw L, Gower L, Friesel R, Prudovsky I, Ryzhov S. Endothelial IL17RD promotes Western diet-induced aortic myeloid cell infiltration. Biochem Biophys Res Commun 2024; 701:149552. [PMID: 38335918 DOI: 10.1016/j.bbrc.2024.149552] [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: 11/20/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
The Interleukin-17 (IL17) family is a group of cytokines implicated in the etiology of several inflammatory diseases. Interleukin-17 receptor D (IL17RD), also known as Sef (similar expression to fibroblast growth factor) belonging to the family of IL17 receptors, has been shown to modulate IL17A-associated inflammatory phenotypes. The objective of this study was to test the hypothesis that IL17RD promotes endothelial cell activation and consequent leukocyte adhesion. We utilized primary human aortic endothelial cells and demonstrated that RNAi targeting of IL17RD suppressed transcript levels by 83 % compared to non-targeted controls. Further, RNAi knockdown of IL17RD decreased the adhesion of THP-1 monocytic cells onto a monolayer of aortic endothelial cells in response to IL17A. Additionally, we determined that IL17A did not significantly enhance the activation of canonical MAPK and NFκB pathways in endothelial cells, and further did not significantly affect the expression of VCAM-1 and ICAM-1 in aortic endothelial cells, which is contrary to previous findings. We also determined the functional relevance of our findings in vivo by comparing the expression of endothelial VCAM-1 and ICAM-1 and leukocyte infiltration in the aorta in Western diet-fed Il17rd null versus wild-type mice. Our results showed that although Il17rd null mice do not have significant alteration in aortic expression of VCAM-1 and ICAM-1 in endothelial cells, they exhibit decreased accumulation of proinflammatory monocytes and neutrophils, suggesting that endothelial IL17RD induced in vivo myeloid cell accumulation is not dependent on upregulation of VCAM-1 and ICAM-1 expression. We further performed proteomics analysis to identify potential molecular mediators of the IL17A/IL17RD signaling axis. Collectively, our results underscore a critical role for Il17rd in the regulation of aortic myeloid cell infiltration in the context of Western diet feeding.
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Affiliation(s)
- Shivangi Pande
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA
| | - Calvin Vary
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA
| | - Xuehui Yang
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA
| | - Lucy Liaw
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA
| | - Lindsey Gower
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA
| | - Robert Friesel
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA.
| | - Igor Prudovsky
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA.
| | - Sergey Ryzhov
- Center for Molecular Medicine, MaineHealth Institute for Research, MaineHealth, 81 Research Drive, Scarborough, ME, 04074, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME, 04496, USA.
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Peak K, Alonzi C, Gower L, Walker D, Johnson B. A model to determine at-home restrictions for cats after treatment of hyperthyroidism with radioiodine. J Small Anim Pract 2022; 63:763-768. [PMID: 35915544 DOI: 10.1111/jsap.13533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/18/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Felinehyperthyroidism is the most common endocrine disease of older cats and radioiodine is considered to be the gold standard treatment. Isolation periods following treatment vary depending on both individual treatment facilities and the relevant legislation of the country; therefore, there is no recognised standardised protocol defining the length of isolation. This work describes how our institution validated that its owner restrictions met dose constraints by using a model of iodine retention to calculate the required duration and nature of owner restrictions. MATERIALS AND METHODS The retained radioactivity of cats at the point of discharge was used to simulate the radiation dose to owners in the 90 days following release. The model created was used to calculate the minimum duration of isolation for a range of administered activities and owner restrictions. RESULTS Using the model, it was found that when injected with the maximum dose used, 222 MBq radioiodine, it was possible to release cats after 14 days of isolation and keep owner doses below 0.30 mSv (whole-body effective dose constraint for a single radiation source) with some restrictions. It was possible to release after 23 days with no restrictions. CLINICAL SIGNIFICANCE The present study provides clinicians with a consistent and verified method in which they can calculate the isolation periods for radioiodine-treated cats.
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Affiliation(s)
- K Peak
- Feline Hyperthyroid Clinic, Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - C Alonzi
- Feline Hyperthyroid Clinic, Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - L Gower
- Feline Hyperthyroid Clinic, Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - D Walker
- Feline Hyperthyroid Clinic, Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - B Johnson
- Radiation Protection, University Hospital Southampton, Southampton, SO16 6YD, UK
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He Q, Jing H, Liaw L, Gower L, Vary C, Hua S, Yang X. Erratum: Corrigendum: Suppression of Spry1 inhibits triple-negative breast cancer malignancy by decreasing EGF/EGFR mediated mesenchymal phenotype. Sci Rep 2017; 7:46791. [PMID: 28462917 PMCID: PMC5411808 DOI: 10.1038/srep46791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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He Q, Gong Y, Gower L, Yang X, Friesel RE. Sef Regulates Epithelial-Mesenchymal Transition in Breast Cancer Cells. J Cell Biochem 2016; 117:2346-56. [PMID: 26950413 DOI: 10.1002/jcb.25532] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 11/09/2022]
Abstract
Sef (similar expression to fgf), also know as IL17RD, is a transmembrane protein shown to inhibit fibroblast growth factor signaling in developmental and cancer contexts; however, its role as a tumor suppressor remains to be fully elucidated. Here, we show that Sef regulates epithelial-mesenchymal transition (EMT) in breast cancer cell lines. Sef expression was highest in the normal breast epithelial cell line MCF10A, intermediate expression in MCF-7 cells and lowest in MDA-MB-231 cells. Knockdown of Sef increased the expression of genes associated with EMT, and promoted cell migration, invasion, and a fibroblastic morphology of MCF-7 cells. Overexpression of Sef inhibited the expression of EMT marker genes and inhibited cell migration and invasion in MCF-7 cells. Induction of EMT in MCF10A cells by TGF-β and TNF-α resulted in downregulation of Sef expression concomitant with upregulation of EMT gene expression and loss of epithelial morphology. Overexpression of Sef in MCF10A cells partially blocked cytokine-induced EMT. Sef was shown to block β-catenin mediated luciferase reporter activity and to cause a decrease in the nuclear localization of active β-catenin. Furthermore, Sef was shown to co-immunoprecipitate with β-catenin. In a mouse orthotopic xenograft model, Sef overexpression in MDA-MB-231 cells slowed tumor growth and reduced expression of EMT marker genes. Together, these data indicate that Sef plays a role in the negative regulation of EMT in a β-catenin dependent manner and that reduced expression of Sef in breast tumor cells may be permissive for EMT and the acquisition of a more metastatic phenotype. J. Cell. Biochem. 117: 2346-2356, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Qing He
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine.,Graduate School for Biomedical Sciences and Engineering, University of Maine, Orono, Maine
| | - Yan Gong
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine.,Graduate School for Biomedical Sciences and Engineering, University of Maine, Orono, Maine
| | - Lindsey Gower
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine
| | - Xuehui Yang
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine
| | - Robert E Friesel
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine.,Graduate School for Biomedical Sciences and Engineering, University of Maine, Orono, Maine
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He Q, Jing H, Liaw L, Gower L, Vary C, Hua S, Yang X. Suppression of Spry1 inhibits triple-negative breast cancer malignancy by decreasing EGF/EGFR mediated mesenchymal phenotype. Sci Rep 2016; 6:23216. [PMID: 26976794 PMCID: PMC4791662 DOI: 10.1038/srep23216] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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] [Received: 04/07/2015] [Accepted: 03/02/2016] [Indexed: 01/22/2023] Open
Abstract
Sprouty (Spry) proteins have been implicated in cancer progression, but their role in triple-negative breast cancer (TNBC), a subtype of lethal and aggressive breast cancer, is unknown. Here, we reported that Spry1 is significantly expressed in TNBC specimen and MDA-MB-231 cells. To understand Spry1 regulation of signaling events controlling breast cancer phenotype, we used lentiviral delivery of human Spry1 shRNAs to suppress Spry1 expression in MDA-MB-231, an established TNBC cell line. Spry1 knockdown MDA-MB-231 cells displayed an epithelial phenotype with increased membrane E-cadherin expression. Knockdown of Spry1 impaired MDA-MB-231 cell migration, Matrigel invasion, and anchorage-dependent and -independent growth. Tumor xenografts originating from Spry1 knockdown MDA-MB-231 cells grew slower, had increased E-cadherin expression, and yielded fewer lung metastases compared to control. Furthermore, suppressing Spry1 in MDA-MB-231 cells impaired the induction of Snail and Slug expression by EGF, and this effect was associated with increased EGFR degradation and decreased EGFR/Grb2/Shp2/Gab1 signaling complex formation. The same phenotype was also observed in the TNBC cell line MDA-MB-157. Together, our results show that unlike in some tumors, where Spry may mediate tumor suppression, Spry1 plays a selective role in at least a subset of TNBC to promote the malignant phenotype via enhancing EGF-mediated mesenchymal phenotype.
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Affiliation(s)
- Qing He
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA
| | - Hongyu Jing
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA.,Department of Respiratory Medicine, The First Hospital of Jinlin University, Changchun, China
| | - Lucy Liaw
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA
| | - Lindsey Gower
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA
| | - Calvin Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA
| | - Shucheng Hua
- Department of Respiratory Medicine, The First Hospital of Jinlin University, Changchun, China
| | - Xuehui Yang
- Center for Molecular Medicine, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME, USA
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Yang X, Gong Y, Tang Y, Li H, He Q, Gower L, Liaw L, Friesel RE. Spry1 and Spry4 differentially regulate human aortic smooth muscle cell phenotype via Akt/FoxO/myocardin signaling. PLoS One 2013; 8:e58746. [PMID: 23554919 PMCID: PMC3598808 DOI: 10.1371/journal.pone.0058746] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 02/05/2013] [Indexed: 01/25/2023] Open
Abstract
Background Changes in the vascular smooth muscle cell (VSMC) contractile phenotype occur in pathological states such as restenosis and atherosclerosis. Multiple cytokines, signaling through receptor tyrosine kinases (RTK) and PI3K/Akt and MAPK/ERK pathways, regulate these phenotypic transitions. The Spry proteins are feedback modulators of RTK signaling, but their specific roles in VSMC have not been established. Methodology/Principal Findings Here, we report for the first time that Spry1, but not Spry4, is required for maintaining the differentiated state of human VSMC in vitro. While Spry1 is a known MAPK/ERK inhibitor in many cell types, we found that Spry1 has little effect on MAPK/ERK signaling but increases and maintains Akt activation in VSMC. Sustained Akt signaling is required for VSMC marker expression in vitro, while ERK signaling negatively modulates Akt activation and VSMC marker gene expression. Spry4, which antagonizes both MAPK/ERK and Akt signaling, suppresses VSMC differentiation marker gene expression. We show using siRNA knockdown and ChIP assays that FoxO3a, a downstream target of PI3K/Akt signaling, represses myocardin promoter activity, and that Spry1 increases, while Spry4 decreases myocardin mRNA levels. Conclusions Together, these data indicate that Spry1 and Spry4 have opposing roles in VSMC phenotypic modulation, and Spry1 maintains the VSMC differentiation phenotype in vitro in part through an Akt/FoxO/myocardin pathway.
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Affiliation(s)
- Xuehui Yang
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- * E-mail: (XY); (RF)
| | - Yan Gong
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- Graduate School for Biomedical Sciences, University of Maine, Orono, Maine, United States of America
| | - Yuefeng Tang
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- Graduate School for Biomedical Sciences, University of Maine, Orono, Maine, United States of America
| | - Hongfang Li
- Department of Physiology, College of Basic Medicine, Lanzhou University, Lanzhou, China
| | - Qing He
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- Graduate School for Biomedical Sciences, University of Maine, Orono, Maine, United States of America
| | - Lindsey Gower
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
| | - Lucy Liaw
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- Graduate School for Biomedical Sciences, University of Maine, Orono, Maine, United States of America
| | - Robert E. Friesel
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, Maine, United States of America
- Graduate School for Biomedical Sciences, University of Maine, Orono, Maine, United States of America
- * E-mail: (XY); (RF)
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Kumar R, Prakash K, Cheang P, Gower L, Khor K. Chitosan-mediated crystallization and assembly of hydroxyapatite nanoparticles into hybrid nanostructured films. J R Soc Interface 2008; 5:427-39. [PMID: 17698476 PMCID: PMC2607385 DOI: 10.1098/rsif.2007.1141] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The synthesis and subsequent assembly of nearly spherical nano-hydroxyapatite (nHA) particles in the presence of trace amounts of the polysaccharide chitosan was carried out employing a wet chemical approach. Chitosan addition during synthesis not only modulated HA crystallization but also aided in the assembly of nHA particles onto itself. Solvent extraction from these suspensions formed iridescent films, of which the bottom few layers were rich in self-assembled nHA particle arrays. The cross-section of these hybrid films revealed compositional and hence structural grading of the two phases and exhibited a unique morphology in which assembled nHA particles gradually gave way to chitosan-rich top layers. Transmission electron microscope and selected area electron diffraction studies suggested that the basal plane of HA had interacted with chitosan, and scanning electron microscope studies of the hybrid films revealed multi-length scale hierarchical architecture composed of HA and chitosan. Phase identification was carried out by X-ray diffraction (XRD) and Rietveld analysis of digitized XRD data showed that the basic apatite structure was preserved, but chitosan inclusion induced subtle changes to the HA unit cell. The refinement of crystallite shape using the Popa method clearly indicated a distinct change in the growth direction of HA crystallites from [001] to [100] with increasing chitosan concentration. The paper also discusses the likelihood of chitosan phosphorylation during synthesis, which we believe to be a pathway, by which chitosan molecules chemically interact with calcium phosphate precursor compounds and orchestrate the crystallization of nHA particles. Additionally, the paper suggests several interesting biomedical applications for graded nHA-chitosan nanostructured films.
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Affiliation(s)
- R Kumar
- BioEngineering, Montana Tech of the University of MontanaButte, MT 59701, USA
| | - K.H Prakash
- Division of Bioengineering, Nanyang Technological University50 Nanyang Avenue, Singapore 639798, Republic of Singapore
- Author and address for correspondence: Nanotechnology and Biomaterials Centre, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia ()
| | - P Cheang
- Division of Bioengineering, Nanyang Technological University50 Nanyang Avenue, Singapore 639798, Republic of Singapore
| | - L Gower
- Materials Science and Engineering, University of Florida210A Rhines Hall, Gainesville, FL 32611, USA
| | - K.A Khor
- School of Mechanical and Aerospace Engineering, Nanyang Technological University50 Nanyang Avenue, Singapore 639798, Republic of Singapore
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El-Shall H, Jeon JH, Abdel-Aal EA, Khan S, Gower L, Rabinovich Y. A study of primary nucleation of calcium oxalate monohydrate: II. Effect of urinary species. Cryst Res Technol 2004. [DOI: 10.1002/crat.200310227] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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El-Shall H, Jeon JH, Abdel-Aal EA, Khan S, Gower L, Rabinovich Y. A study of primary nucleation of calcium oxalate monohydrate: II. Effect of urinary species. Cryst Res Technol 2004. [DOI: 10.1002/crat.200310174] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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El-Shall H, Jeon JH, Abdel-Aal EA, Khan S, Gower L, Rabinovich Y. A study of primary nucleation of calcium oxalate monohydrate: I-Effect of supersaturation. Cryst Res Technol 2004. [DOI: 10.1002/crat.200310173] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
Two rare but life-threatening complications of percutaneous endoscopic gastrostomy (PEG) are reported: small bowel perforation and obstruction. Both resulted from impaction of the PEG end-piece after separation at skin level. Review of the literature revealed very few complications from intestinal passage of PEG end-pieces. The free intragastric PEG end-piece routinely passes through the gastrointestinal tract in most cases. One of these two cases was drawn from a series of 100 patients with intentional intestinal passage of PEG end-pieces to give a severe complication rate of 1%. A case can be made for routine endoscopic per-oral removal of PEG end-pieces in the elective setting, but this is more costly and not without hazard. Previous laparotomy and/or known adhesions is a relative indication for endoscopic retrieval of the PEG end-piece. Oesophageal disease or intolerance of endoscopy is a relative indication for intestinal passage. Close clinical follow up is recommended to ensure that the PEG end-piece has passed per-rectum. If the PEG end-piece has not passed and is shown in the small bowel on plain X-ray at approximately 3 weeks after separation then lodgement has probably occurred and early operative intervention is warranted.
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Affiliation(s)
- B J Coventry
- Department of Surgery, Queen Elizabeth Hospital, Woodville, South Australia
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Finikiotis G, Gower L. Chorion villus sampling--transcervical or transabdominal? Aust N Z J Obstet Gynaecol 1990; 30:63-5. [PMID: 2189394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chorion villus sampling was performed transcervically on 84 patients and transabdominally on 126 patients. Two of 4 (5%) spontaneous abortions in the transcervical group were complicated by uterine infection. Five (4%) spontaneous abortions in the transabdominal group were uncomplicated by infection. The results support the contention that the transabdominal method may be safer and that the procedure related fetal loss rate is similar to that following amniocentesis.
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Affiliation(s)
- G Finikiotis
- Department of Obstetrics and Gynaecology, Flinders Medical Centre, Adelaide
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