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Anis MM, Krynetskaia N, Zhao Z, Krynetskiy E, Soliman AMS. Determining Candidate Single Nucleotide Polymorphisms in Acquired Laryngotracheal Stenosis. Laryngoscope 2017; 128:E111-E116. [PMID: 29164621 DOI: 10.1002/lary.26981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/10/2017] [Accepted: 09/29/2017] [Indexed: 01/30/2023]
Abstract
OBJECTIVES/HYPOTHESIS Despite wide adoption of strategies to prevent injury from prolonged intubation and tracheotomy, acquired laryngotracheal stenosis (ALTS) has not disappeared. ALTS' persistence may be due to patient factors that confer unique susceptibility for some. We sought to identify genetic markers in genes associated with wound healing that could be associated with ALTS. STUDY DESIGN Case-control study. METHODS One hundred thirty-eight patients were recruited, 53 patients with ALTS and 85 control patients who underwent intubation or tracheotomy without evidence of ALTS. The patients' DNA was isolated from whole blood. Custom primers were designed, and the TaqMan assay employing allele-specific polymerase chain reaction was used to interrogate single nucleotide polymorphisms (SNPs) rs1799750, rs522616, rs2276109, rs2569190, rs1800469, and rs1024611 of candidate wound healing genes MMP1, MMP3, MMP12, CD14, TGFβ1, and MCP1, respectively. A logistic regression model was used to examine the association of candidate gene polymorphisms with the presence or absence of ALTS. RESULTS All 138 patients were successfully genotyped. No significant association was found between candidate SNPs and development of ALTS in the overall group. However, subgroup analysis within each ethnicity identified SNPs that are associated with ALTS depending upon the ethnic background. CONCLUSIONS Patient factors such as variations in wound healing due to functional SNPs may shed light on the development of ALTS. There may be a difference in susceptibility to developing ALTS in different ethnic backgrounds. These preliminary findings need to be corroborated in larger population studies. LEVEL OF EVIDENCE 3b. Laryngoscope, 128:E111-E116, 2018.
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Affiliation(s)
- Mursalin M Anis
- Department of Otolaryngology-Head and Neck Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania.,Coastal Ear, Nose and Throat, Neptune, New Jersey
| | - Natalia Krynetskaia
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania
| | - Zhigen Zhao
- Department of Statistics, Fox School of Business, Temple University, Philadelphia, Pennsylvania, U.S.A
| | - Evgeny Krynetskiy
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, Philadelphia, Pennsylvania
| | - Ahmed M S Soliman
- Department of Otolaryngology-Head and Neck Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
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Regeneration and Regrowth Potentials of Digit Tips in Amphibians and Mammals. Int J Cell Biol 2017; 2017:5312951. [PMID: 28487741 PMCID: PMC5402240 DOI: 10.1155/2017/5312951] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 03/09/2017] [Indexed: 12/27/2022] Open
Abstract
Tissue regeneration and repair have received much attention in the medical field over the years. The study of amphibians, such as newts and salamanders, has uncovered many of the processes that occur in these animals during full-limb/digit regeneration, a process that is highly limited in mammals. Understanding these processes in amphibians could shed light on how to develop and improve this process in mammals. Amputation injuries in mammals usually result in the formation of scar tissue with limited regrowth of the limb/digit; however, it has been observed that the very tips of digits (fingers and toes) can partially regrow in humans and mice under certain conditions. This review will summarize and compare the processes involved in salamander limb regeneration, mammalian wound healing, and digit regeneration in mice and humans.
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Osadnik T, Strzelczyk JK, Lekston A, Reguła R, Bujak K, Fronczek M, Gawlita M, Gonera M, Wasilewski J, Szyguła-Jurkiewicz B, Gierlotka M, Gąsior M. The association of functional polymorphisms in genes encoding growth factors for endothelial cells and smooth muscle cells with the severity of coronary artery disease. BMC Cardiovasc Disord 2016; 16:218. [PMID: 27835972 PMCID: PMC5106826 DOI: 10.1186/s12872-016-0402-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 11/08/2016] [Indexed: 12/18/2022] Open
Abstract
Background Despite the important roles of vascular smooth muscle cells and endothelial cells in atherosclerotic lesion formation, data regarding the associations of functional polymorphisms in the genes encoding growth factors with the severity of coronary artery disease (CAD) are lacking. The aim of the present study is to analyze the relationships between functional polymorphisms in genes encoding basic fibroblast growth factor (bFGF, FGF2), epidermal growth factor (EGF), insulin-like growth factor-1 (IGF-1), platelet derived growth factor-B (PDGFB), transforming growth factor-β1 (TGF-β1) and vascular endothelial growth factor A (VEGF-A) and the severity of coronary atherosclerosis in patients with stable CAD undergoing their first coronary angiography. Methods In total, 319 patients with stable CAD who underwent their first coronary angiography at the Silesian Centre for Heart Diseases in Zabrze, Poland were included in the analysis. CAD burden was assessed using the Gensini score. The TaqMan method was used for genotyping of selected functional polymorphisms in the FGF2, PDGFB, TGFB1, IGF1 and VEGFA genes, while rs4444903 in the EGF gene was genotyped using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The associations between the selected polymorphisms and the Gensini were calculated both for the whole cohort and for a subgroup of patients without previous myocardial infarction (MI). Results There were no differences in the distribution of the Gensini score between the genotypes of the analyzed polymorphisms in FGF2, EGF, IGF1, PDFGB, and TGFB1 in the whole cohort and in the subgroup of patients without previous MI. The Gensini score for VEGFA rs699947 single-nucleotide polymorphism (SNP) in patients without previous myocardial infarction, after correction for multiple testing, was highest in patients with the A/A genotype, lower in heterozygotes and lowest in patients with the C/C genotype, (p value for trend = 0.013, false discovery rate (FDR) = 0.02). After adjustment for clinical variables, and correction for multiple comparisons the association between the VEGFA genotype and Gensini score remained only nominally significant (p = 0.04, FDR = 0.19) under the dominant genetic model in patients without previous MI. Conclusions We were unable to find strong association between analyzed polymorphisms in growth factors and the severity of coronary artery disease, although there was a trend toward association between rs699947 and the severity of CAD in patients without previous MI. Electronic supplementary material The online version of this article (doi:10.1186/s12872-016-0402-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tadeusz Osadnik
- 2nd Department of Cardiology and Angiology, Silesian Center for Heart Diseases, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland. .,Genomics Laboratory, Kardio-Med Silesia Science and Technology Park, Marii Curie-Skłodowskiej Street 10C, 41-800, Zabrze, Poland.
| | - Joanna Katarzyna Strzelczyk
- Department of Medical and Molecular Biology, School of Medicine with the Division of Dentistry, Medical University of Silesia, Jordana Street 19, 41-808, Zabrze, Poland
| | - Andrzej Lekston
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Rafał Reguła
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Kamil Bujak
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Martyna Fronczek
- Genomics Laboratory, Kardio-Med Silesia Science and Technology Park, Marii Curie-Skłodowskiej Street 10C, 41-800, Zabrze, Poland.,Silesian Center for Heart Diseases, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Marcin Gawlita
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Małgorzata Gonera
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Jarosław Wasilewski
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Bożena Szyguła-Jurkiewicz
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Marek Gierlotka
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
| | - Mariusz Gąsior
- 3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Marii Curie-Skłodowskiej Street 9, 41-800, Zabrze, Poland
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Sri Manjari K, Nallari P, Balakrishna N, Vidyasagar A, Prabhakar B, Jyothy A, Venkateshwari A. Influence of matrix metalloproteinase-1 gene -1607 (1G/2G) (rs1799750) promoter polymorphism on circulating levels of MMP-1 in chronic pancreatitis. Biochem Genet 2013; 51:644-54. [PMID: 23644943 DOI: 10.1007/s10528-013-9594-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 11/15/2012] [Indexed: 12/26/2022]
Abstract
This study investigated the role of -1607 (1G/2G) (rs1799750) polymorphism of the MMP-1 gene in chronic pancreatitis. We genotyped 100 patients with chronic pancreatitis and 100 control subjects using tetra-primer ARMS-PCR followed by agarose gel electrophoresis. Serum levels of MMP-1 were determined by Elisa. Statistical analysis was applied to test the significance of the results. The genotypic and allelic distribution varied significantly between the disease group and the control subjects [OD = 1.981 (1.236-3.181), p = 0.004]. MMP-1 levels were higher in subjects homozygous for the 2G allele than in subjects with the 1G allele. The present study revealed a significant association of the MMP-1 -1607 1G/2G (rs1799750) gene promoter polymorphism with chronic pancreatitis, and it can be considered a biological marker in the etiology of chronic pancreatitis.
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Affiliation(s)
- K Sri Manjari
- Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad 500 016, India
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