101
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Leeming W, Barahona A. Synthesis, convergence, and differences in the entangled histories of cytogenetics in medicine: A comparative study of Canada and Mexico. STUDIES IN HISTORY AND PHILOSOPHY OF BIOLOGICAL AND BIOMEDICAL SCIENCES 2018; 71:8-16. [PMID: 30224294 DOI: 10.1016/j.shpsc.2018.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 09/18/2017] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
Most historians of science and medicine agree that medical interest in genetics intensified after 1930, and interest in the relationship of radiation damage and genetics continued and expanded after World War II. Moreover, they maintain that the synthesis and convergence of human genetics and cytological techniques in European centers resulted in their dissemination to centers in the United States, resulting in a new field of expertise focused on medicine and clinical research, known as cytogenetics. In this article, we broaden the scope of the inquiry by showing how the early histories of cytogenetics in Canada and Mexico unfolded against strikingly different backgrounds in clinical research and the delivery of health care. We thus argue that the field of cytogenetics did not emerge in a straightforward manner and develop in the same way in all countries. The article provides a brief background to the history of human cytogenetics, and then outlines key developments related to the early adoption of cytogenetics in Canada and Mexico. Conclusions are then drawn using comparisons of the different ways in which local determinants affected adoption. We then propose directions for future study focused on the ways in which circuits of practices, collaborative research, and transfers of knowledge have shaped how cytogenetics has come to be organised in medicine around the world.
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Affiliation(s)
- William Leeming
- Faculty of Liberal Arts & Sciences and School of Interdisciplinary Studies, OCAD University, Canada
| | - Ana Barahona
- Department of Evolutionary Biology, School of Sciences, National Autonomous University of Mexico, UNAM, Mexico.
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102
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In Vitro Studies on Ameliorative Effects of Limonene on Cadmium-Induced Genotoxicity in Cultured Human Peripheral Blood Lymphocytes. Appl Biochem Biotechnol 2018; 187:1384-1397. [DOI: 10.1007/s12010-018-2881-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 09/09/2018] [Indexed: 10/28/2022]
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103
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Bal S, Yadav A, Verma N, Aggarwal NK, Gupta R. Protective role of eugenol on arsenic induced oxidative DNA damage and modulatory effect of GSTO2 polymorphism. J Food Biochem 2018. [DOI: 10.1111/jfbc.12565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Surbhi Bal
- Department of Biotechnology; Kurukshetra University; Kurukshetra Haryana India
| | - Anita Yadav
- Department of Biotechnology; Kurukshetra University; Kurukshetra Haryana India
| | - Neha Verma
- Department of Biotechnology; Kurukshetra University; Kurukshetra Haryana India
| | - Neeraj K. Aggarwal
- Department of Microbiology; Kurukshetra University; Kurukshetra Haryana India
| | - Ranjan Gupta
- Department of Biochemistry; Kurukshetra University; Kurukshetra Haryana India
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104
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Phenotypic, Genetic, and Cytogenetic Evidence of Hybridization Between Species of Trans-Andean Tamarins (Genus Saguinus). INT J PRIMATOL 2018. [DOI: 10.1007/s10764-018-0044-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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105
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Goldschmidt B, Lopes CAA, Resende F, Pissinatti TA, Toledo DC, Meireles BCS, Cordeiro NFG. Terminal 13p deletion in squirrel monkey (Saimiri sciureus) with differentiated phenotype. J Med Primatol 2018; 47:412-415. [PMID: 29956824 DOI: 10.1111/jmp.12359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND The taxonomic classification of squirrel monkeys is often controversial issue offering many different information. The classification of captive animals is difficult due to the phenotypic similarities between the presented species, which is observed mainly in coat coloration. METHODS The objective of this study was to analyze the chromosome pattern of one squirrel monkey with off standard physical characteristics, which is kept in the Laboratory Animals Breeding Center in Rio de Janeiro State, Brazil, and try to establish some correlations. Chromosomes were obtained using lymphocyte culture technique. RESULTS AND CONCLUSIONS Evaluation of G bands showed a terminal deletion in one chromosome of pair 13. The association of the results found with the different phenotypic characteristics led us to classify it as a Saimiri sciureus specimen with a structural chromosomal change, possibly allowing the expression of hemizygous alleles.
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Affiliation(s)
- B Goldschmidt
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - C A A Lopes
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - F Resende
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - T A Pissinatti
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - D C Toledo
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - B C S Meireles
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
| | - N F G Cordeiro
- Serviço de Criação de Primatas Não-Humanos/ICTB/ FIOCRUZ, Rio de Janeiro, Brazil
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106
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Sakthianandeswaren A, Parsons MJ, Mouradov D, MacKinnon RN, Catimel B, Liu S, Palmieri M, Love C, Jorissen RN, Li S, Whitehead L, Putoczki TL, Preaudet A, Tsui C, Nowell CJ, Ward RL, Hawkins NJ, Desai J, Gibbs P, Ernst M, Street I, Buchert M, Sieber OM. MACROD2 Haploinsufficiency Impairs Catalytic Activity of PARP1 and Promotes Chromosome Instability and Growth of Intestinal Tumors. Cancer Discov 2018; 8:988-1005. [PMID: 29880585 DOI: 10.1158/2159-8290.cd-17-0909] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 04/16/2018] [Accepted: 06/05/2018] [Indexed: 11/16/2022]
Abstract
ADP-ribosylation is an important posttranslational protein modification that regulates diverse biological processes, controlled by dedicated transferases and hydrolases. Here, we show that frequent deletions (∼30%) of the MACROD2 mono-ADP-ribosylhydrolase locus in human colorectal cancer cause impaired PARP1 transferase activity in a gene dosage-dependent manner. MACROD2 haploinsufficiency alters DNA repair and sensitivity to DNA damage and results in chromosome instability. Heterozygous and homozygous depletion of Macrod2 enhances intestinal tumorigenesis in ApcMin/+ mice and the growth of human colorectal cancer xenografts. MACROD2 deletion in sporadic colorectal cancer is associated with the extent of chromosome instability, independent of clinical parameters and other known genetic drivers. We conclude that MACROD2 acts as a haploinsufficient tumor suppressor, with loss of function promoting chromosome instability, thereby driving cancer evolution.Significance: Chromosome instability (CIN) is a hallmark of cancer. We identify MACROD2 deletion as a cause of CIN in human colorectal cancer. MACROD2 loss causes repression of PARP1 activity, impairing DNA repair. MACROD2 haploinsufficiency promotes CIN and intestinal tumor growth. Our results reveal MACROD2 as a major caretaker tumor suppressor gene. Cancer Discov; 8(8); 988-1005. ©2018 AACR.See related commentary by Jin and Burkard, p. 921This article is highlighted in the In This Issue feature, p. 899.
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Affiliation(s)
- Anuratha Sakthianandeswaren
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Marie J Parsons
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Surgery, The University of Melbourne, Parkville, Victoria, Australia
| | - Dmitri Mouradov
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Ruth N MacKinnon
- Victorian Cancer Cytogenetics Service, St Vincent's Hospital Melbourne, Fitzroy, Victoria, Australia.,Department of Medicine, The University of Melbourne (St Vincent's Hospital), Fitzroy, Victoria, Australia
| | - Bruno Catimel
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Sheng Liu
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Michelle Palmieri
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Christopher Love
- Department of Pathology, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia
| | - Robert N Jorissen
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Shan Li
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Lachlan Whitehead
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Tracy L Putoczki
- Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Adele Preaudet
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Cary Tsui
- Histology Facility, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Cameron J Nowell
- Drug Discovery Biology, The Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Robyn L Ward
- Office of the Deputy Vice-Chancellor (Research), The University of Queensland, Brisbane, Queensland, Australia
| | - Nicholas J Hawkins
- Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Jayesh Desai
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Department of Medical Oncology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Peter Gibbs
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Department of Medical Oncology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Matthias Ernst
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer & Wellness Centre, Heidelberg, Victoria, Australia.,School of Cancer Medicine, LaTrobe University, Heidelberg, Victoria, Australia
| | - Ian Street
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Cancer Therapeutics Cooperative Research Centre, Parkville, Victoria, Australia
| | - Michael Buchert
- Olivia Newton-John Cancer Research Institute, Olivia Newton-John Cancer & Wellness Centre, Heidelberg, Victoria, Australia.,School of Cancer Medicine, LaTrobe University, Heidelberg, Victoria, Australia
| | - Oliver M Sieber
- Systems Biology and Personalised Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia. .,Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia.,Department of Surgery, The University of Melbourne, Parkville, Victoria, Australia.,Department of Biochemistry & Molecular Biology, Monash University, Clayton, Victoria, Australia
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107
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Degrandi TM, de Oliveira JCP, Soares ADA, Ledesma MA, Hass I, Garnero ADV, Gunski RJ. Karyotype description and comparative analysis in Ringed Kingfisher and Green Kingfisher (Coraciiformes, Alcedinidae). COMPARATIVE CYTOGENETICS 2018; 12:163-170. [PMID: 29780444 PMCID: PMC5958172 DOI: 10.3897/compcytogen.v12i2.23883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Kingfishers comprise about 115 species of the family Alcedinidae, and are an interesting group for cytogenetic studies, for they are among birds with most heterogeneous karyotypes. However, cytogenetics knowledge in Kingfishers is extremely limited. Thus, the aim of this study was to describe the karyotype structure of the Ringed Kingfisher (Megaceryle torquata Linnaeus, 1766) and Green Kingfisher (Chloroceryle americana Gmelin, 1788) and also compare them with related species in order to identify chromosomal rearrangements. The Ringed Kingfisher presented 2n = 84 and the Green Kingfisher had 2n = 94. The increase of the chromosome number in the Green Kingfisher possibly originated by centric fissions in macrochromosomes. In addition, karyotype comparisons in Alcedinidae show a heterogeneity in the size and morphology of macrochromosomes, and chromosome numbers ranging from 2n = 76 to 132. Thus, it is possible chromosomal fissions in macrochromosomes resulted in the increase of the diploid number, whereas chromosome fusions have originated the karyotypes with low diploid number.
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Affiliation(s)
- Tiago Marafiga Degrandi
- Universidade Federal do Paraná, Av. Coronel Francisco Heráclito dos Santos, s/n, Curitiba, Paraná, Brazil
| | | | - Amanda de Araújo Soares
- Universidade Federal do Paraná, Av. Coronel Francisco Heráclito dos Santos, s/n, Curitiba, Paraná, Brazil
| | | | - Iris Hass
- Universidade Federal do Paraná, Av. Coronel Francisco Heráclito dos Santos, s/n, Curitiba, Paraná, Brazil
| | - Analía del Valle Garnero
- Universidade Federal do Pampa, Rua Aluízio Barros Macedo, BR 290, km 423 Bairro Piraí, São Gabriel, Rio Grande do Sul, Brazil
| | - Ricardo José Gunski
- Universidade Federal do Pampa, Rua Aluízio Barros Macedo, BR 290, km 423 Bairro Piraí, São Gabriel, Rio Grande do Sul, Brazil
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108
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Bal S, Yadav A, Verma N, Gupta R, Aggarwal NK. Shielding effect of anethole against arsenic induced genotoxicity in cultured human peripheral blood lymphocytes and effect of GSTO1 polymorphism. 3 Biotech 2018; 8:232. [PMID: 29725571 PMCID: PMC5928012 DOI: 10.1007/s13205-018-1263-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 04/24/2018] [Indexed: 01/02/2023] Open
Abstract
Chronic exposure of inorganic arsenic compounds is responsible for the manifestation of various tumours as well as other diseases. The principal mechanism behind arsenic toxicity is the induction of a strong oxidative stress with production of free radicals in cells. The present study was aimed to explore the shielding effect of anethole against oxidative damage induced by arsenic in cultured human peripheral blood lymphocytes and the effect of GSTO1 polymorphism. Sister chromatid exchange (SCE) frequency, comet tail moment and lipid peroxidation levels were used as biomarkers to assess the oxidative damage. Heparinised venous blood was collected from healthy individuals and treated with sodium arsenite (50 µM) in the presence of anethole (25 and 50 µM) for the analysis of shielding effect of anethole. For the genotyping of GSTO1, PCR RFLP method was adopted. A significant dose-dependent increase in the frequency of SCEs, tail moment and lipid peroxidation levels, was observed when lymphocytes were treated with sodium arsenite. Anethole in combination with sodium arsenite has shown a dose-dependent significant decrease in the frequency of SCEs, tail moment and lipid peroxidation levels. Genetic polymorphism of GSTO1 was found to effect individual susceptibility towards arsenic-mediated genotoxicity and was found insignificant when antigenotoxic effect of anethole was considered. GSTO1 mutant genotypes were found to have significant higher genotoxicity of sodium arsenite as compared to wild-type genotype. The results of the present study suggest ameliorative effects of anethole against arsenic-mediated genotoxic damage in cultured human peripheral blood lymphocytes. A significant effect of GSTO1 polymorphism was observed on genotoxicity of sodium arsenite.
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Affiliation(s)
- Surbhi Bal
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana 136119 India
| | - Anita Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana 136119 India
| | - Neha Verma
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana 136119 India
| | - Ranjan Gupta
- Department of Biochemistry, Kurukshetra University, Kurukshetra, Haryana 136119 India
| | - Neeraj K. Aggarwal
- Department of Microbiology, Kurukshetra University, Kurukshetra, Haryana 136119 India
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109
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Abstract
Cytogenetic studies have provided a great deal of useful information about the biology and diagnosis of renal cell tumors. Particularly papillary and non-papillary tumors seem to be characterized by different cytogenetic patterns. We report the cytogenetic and histologic analysis of 16 renal tumors, 5 of which showed clonal chromosome changes. Most had chromosome abnormalities which have so far been described as specific of particular histopathologic subgroups.
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Affiliation(s)
- R Vanni
- Istituto di Biologia Generale, Università di Cagliari, Italy
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110
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Abstract
We present a case of a 64-year-old male, diagnosed to have acute promyelocytic leukemia with trisomy 21. He came to the hospital with bleeding secondary to disseminated intravascular coagulation. Promyelocytes in the blood and bone marrow contained abundant, prominent azurophilic granules. Cytogenetic studies revealed trisomy 21. The karyotypic abnormality reverted back to normal 46,XY, pattern after chemotherapy. The typical morphologic and cytogenetic features of acute promyelocytic leukemia are briefly discussed.
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Affiliation(s)
- U Singal
- Division of Hematology-Oncology, C.S. Mott Center, Detroit, Michigan
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111
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Scelsi R, Cislaghi E, Scelsi M. Action of Titanium on Guinea Pig Macrophages and Human Lymphocytes Cultured in Vitro. TUMORI JOURNAL 2018; 60:73-6. [PMID: 4135379 DOI: 10.1177/030089167406000108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The action of titanium on guinea pig macrophages and human lymphocytes cultured in vitro is studied with the fluorochromasia test and with the extent of blast transformation and mitoses. No differences between the percentages of macrophages which show fluorochromasia are observed in cultures with titanium and in untreated control cultures. Titanium doesn't exert negative influence on reduplication of human lymphocytes cultured in vitro with phytohemoagglutinine (P.H.A.).
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112
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Tognella S, Mantovani G, Del Giacco GS, Manconi PE, Cengiarotti L, Floris C, Grifoni V. Effects of Hodgkin Cytotoxic Serum on Blast Transformation of Normal and Hodgkin Human Peripheral Blood Lymphocytes. TUMORI JOURNAL 2018; 61:53-62. [PMID: 1226572 DOI: 10.1177/030089167506100107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The PHA-resposiveness of normal and Hodgkin patient human peripheral blood lymphocytes has been studied before and after incubation with Hodgkin cytotoxic sera. The following conclusions have been reached: (a) Hodgkin cytotoxic serum is capable of decreasing the PHA-responsiveness of normal lymphocytes and of furtherly impairing the already defective PHA-responsiveness of Hodgkin lymphocytes. (b) The impaired PHA-responsiveness can be restored to the original levels by eluting the cytotoxic antibody. Control experiments in which normal and Hodgkin lymphocytes were put in contact with normal and Hodgkin non-cytotoxic serum showed no decrease of PHA-responsiveness. These data are in agreement with the hypothesis that the presence of serum cytotoxin is at least partly responsible for the immuno-incompetence of T-lymphocytes characteristic of Hodgkin's disease.
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113
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Grifoni V, Rugarli C, Tossi B, Besana C, Forni A. Blastic Transformation Induced on the Lymphocytes «in vitro» by an Exudate of Reticulum Cell Sarcoma. TUMORI JOURNAL 2018; 53:483-93. [PMID: 4864919 DOI: 10.1177/030089166705300505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The blood lymphocyte culture «in vitro» has been employed in order to investigate (a) the presence of neoplastic antigens in reticulum cell sarcoma exudates, and (b) the ability of patients with reticulum cell proliferative diseases (reticulum cell sarcoma, reticulum cell reticulosis) to give immune reactions to such antigens. Lymphocytes from a patient with reticulum cell reticulosis showed a 7.3% transformation to blast cells in the presence of the pleural exudate from a reticulum cell sarcoma patient. However, this same exudate did not induce transformation of lymphocytes from two other patients with reticulum cell sarcoma nor of normal lymphocytes. Lymphocytes from the exudate donor patient did show a small percentage transformation in the presence as well as in the absence of the exudate (2.3, and 2.1%, respectively). With the purpose of identification of the transformating factor, fractionation studies were performed yielding a carbohydrate-rich, partially dialyzable mucoprotein. The conclusion is drawn that lymphocytes from the patient with reticulum cell reticulosis were immunologically reactive to a neoplastic antigen contained in the reticulum cell sarcoma exudate, and possibly produced by the proliferating reticulum cells.
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114
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Analysis of Chromothripsis by Combined FISH and Microarray Analysis. Methods Mol Biol 2018; 1769:53-77. [PMID: 29564818 DOI: 10.1007/978-1-4939-7780-2_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Fluorescence in situ hybridization (FISH) to metaphase chromosomes, in conjunction with SNP array, array CGH, or whole genome sequencing, can help determine the organization of abnormal genomes after chromothripsis and other types of complex genome rearrangement. DNA microarrays can identify the changes in copy number, but they do not give information on the organization of the abnormal chromosomes, balanced rearrangements, or abnormalities of the centromeres and other regions comprised of highly repetitive DNA. Many of these details can be determined by the strategic use of metaphase FISH. FISH is a single-cell technique, so it can identify low-frequency chromosome abnormalities, and it can determine which chromosome abnormalities occur in the same or different clonal populations. These are important considerations in cancer. Metaphase chromosomes are intact, so information about abnormalities of the chromosome homologues is preserved. Here we describe strategies for working out the organization of highly rearranged genomes by combining SNP array data with various metaphase FISH methods. This approach can also be used to address some of the uncertainties arising from whole genome or mate-pair sequencing data.
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115
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Butinof M, Fernández RA, Lerda D, Lantieri MJ, Filippi I, Díaz MDP. [Biomonitoring in exposure to pesticides, its contribution to epidemiological surveillance of pesticide applicators in Cordoba, Argentina]. GACETA SANITARIA 2018; 33:216-221. [PMID: 29510874 DOI: 10.1016/j.gaceta.2017.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/28/2017] [Accepted: 12/04/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To assess the level of exposure to pesticides and its correlation with perceived health indicators and injury biomarkers (genotoxic alterations and those caused by butyrylcholinesterase enzyme activity) in the population of pesticide applicators in extensive crops (PAEC) in Córdoba, Argentina. METHODS Transversal study, in PAEC (n = 47) randomly selected from a sample of 2000, and non-exposed subject controls (n = 52). The sociodemographic variables, exposure conditioning, and perceived health were surveyed by means of a self-administered questionnaire; biological indicators of genotoxicity: micronuclei, chromosomal aberrations and kite assay, and butyrylcholinesterase activity. RESULTS 40% of PAEC have over 10 years' length of service and almost 50% of them reside less than 500 m from the sprinkled fields; they report low rates of personal protective equipment use while mixing, applying, or repairing the equipment. General, cardio-respiratory, and dermatological symptoms were greater among PAEC (p <0.05) as well as indicators of genotoxic injury (p <0.001). The butyrylcholinesterase activity was negatively associated with levels of exposure to pesticides. CONCLUSIONS The PAEC show an important negative impact on health linked to exposure to pesticides. The exposure scales associated to the use of biomarkers were a useful tool for monitoring pesticide applicators' health.
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Affiliation(s)
- Mariana Butinof
- Escuela de Nutrición, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | - Daniel Lerda
- Facultad de Medicina, Universidad Católica de Córdoba, Córdoba, Argentina
| | - María Josefina Lantieri
- INICSA-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Iohanna Filippi
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - María Del Pilar Díaz
- Escuela de Nutrición, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina; INICSA-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
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116
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Guo L, Accorsi A, He S, Guerrero-Hernández C, Sivagnanam S, McKinney S, Gibson M, Sánchez Alvarado A. An adaptable chromosome preparation methodology for use in invertebrate research organisms. BMC Biol 2018; 16:25. [PMID: 29482548 PMCID: PMC5828064 DOI: 10.1186/s12915-018-0497-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/07/2018] [Indexed: 12/16/2022] Open
Abstract
Background The ability to efficiently visualize and manipulate chromosomes is fundamental to understanding the genome architecture of organisms. Conventional chromosome preparation protocols developed for mammalian cells and those relying on species-specific conditions are not suitable for many invertebrates. Hence, a simple and inexpensive chromosome preparation protocol, adaptable to multiple invertebrate species, is needed. Results We optimized a chromosome preparation protocol and applied it to several planarian species (phylum Platyhelminthes), the freshwater apple snail Pomacea canaliculata (phylum Mollusca), and the starlet sea anemone Nematostella vectensis (phylum Cnidaria). We demonstrated that both mitotically active adult tissues and embryos can be used as sources of metaphase chromosomes, expanding the potential use of this technique to invertebrates lacking cell lines and/or with limited access to the complete life cycle. Simple hypotonic treatment with deionized water was sufficient for karyotyping; growing cells in culture was not necessary. The obtained karyotypes allowed the identification of differences in ploidy and chromosome architecture among otherwise morphologically indistinguishable organisms, as in the case of a mixed population of planarians collected in the wild. Furthermore, we showed that in all tested organisms representing three different phyla this protocol could be effectively coupled with downstream applications, such as chromosome fluorescent in situ hybridization. Conclusions Our simple and inexpensive chromosome preparation protocol can be readily adapted to new invertebrate research organisms to accelerate the discovery of novel genomic patterns across the branches of the tree of life.
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Affiliation(s)
- Longhua Guo
- University of California, Los Angeles, CA, USA
| | - Alice Accorsi
- Stowers Institute for Medical Research, Kansas City, MO, USA.,Howard Hughes Medical Institute, Kansas City, MO, USA
| | - Shuonan He
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | | | | | - Sean McKinney
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Matthew Gibson
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Alejandro Sánchez Alvarado
- Stowers Institute for Medical Research, Kansas City, MO, USA. .,Howard Hughes Medical Institute, Kansas City, MO, USA.
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Ozer C, Caglar Aytac P, Goren MR, Toksoz S, Gul U, Turunc T. Sperm retrieval by microdissection testicular sperm extraction and intracytoplasmic sperm injection outcomes in nonobstructive azoospermic patients with Klinefelter syndrome. Andrologia 2018; 50:e12983. [PMID: 29460304 DOI: 10.1111/and.12983] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2018] [Indexed: 02/28/2024] Open
Abstract
Klinefelter syndrome is the most frequent chromosomal abnormality in patients with nonobstructive azoospermia. The development of advanced assisted reproductive techniques, such as testicular sperm extraction and intracytoplasmic sperm injection, has provided the possibility of biological fathering in nonobstructive azoospermic patients with Klinefelter syndrome. We aimed to evaluate our sperm retrieval rate by microdissection testicular sperm extraction and to analyse the intracytoplasmic sperm injection outcomes in these patients. Medical records of 110 nonobstructive azoospermic patients with Klinefelter syndrome were retrospectively reviewed. We found that the sperm retrieval rate by microdissection testicular sperm extraction is lower than published reports on other types of secretory azoospermia. The statistical analyses yielded that age, FSH and testosterone levels as predictive factors for successful sperm retrieval.
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Affiliation(s)
- C Ozer
- Department of Urology, Adana Dr. Turgut Noyan Medical and Research Center, Baskent University School of Medicine, Adana, Turkey
| | - P Caglar Aytac
- Department of Obstetrics and Gynecology, Adana Dr. Turgut Noyan Medical and Research Center, Baskent University School of Medicine, Adana, Turkey
| | - M R Goren
- Department of Urology, Adana Dr. Turgut Noyan Medical and Research Center, Baskent University School of Medicine, Adana, Turkey
| | - S Toksoz
- Department of Urology, Hatay State Hospital, Hatay, Turkey
| | - U Gul
- Department of Urology, Adana Dr. Turgut Noyan Medical and Research Center, Baskent University School of Medicine, Adana, Turkey
| | - T Turunc
- Department of Urology, Adana Dr. Turgut Noyan Medical and Research Center, Baskent University School of Medicine, Adana, Turkey
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118
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Mackic-Djurovic M, Hasic S, Kiseljakovic E, Rukavina D, Ibrulj S. Cytogenetic Abnormalities Found in Patients with Reproductive Problems. Med Arch 2018; 71:396-399. [PMID: 29416198 PMCID: PMC5764602 DOI: 10.5455/medarh.2017.71.396-399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Introduction One of the important causes of male infertility is aberration at the chromosomes. Aim The main purpose of this study was to determine the frequency and types of chromosomal aberration in infertile/sterile men whose samples were analyzed in the Center for Cytogenetics of Faculty of Medicine University of Sarajevo in the last four years. Methods A total of 353 infertile/sterile men, between the ages of 22-55 years, referred for cytogenetic analysis to the Center for Genetics of Faculty of Medicine during the period 2013-2016. Karyotyping was performed on peripheral blood lymphocytes by using the Giemsa trypsin banding (GTG) technique. Results The structural and numerical chromosomal aberration in infertility/ sterility of men found with the incidence of 6% (20/353). Out of the 20 patients with abnormal cytogenetic diagnosis, structural chromosome abnormalities were observed in 17 (85%) patients and 3 (15%) with numerical aberrations. The type of aberrations mostly found were Robertsonian and reciprocal translocations (35%, 35%, respectively). Conclusions The incidence of chromosomal abnormalities in infertile/sterile males suggests that the cytogenetics analysis is an important in male infertility, especially if it will be used for the purpose of assisted reproduction techniques.
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Affiliation(s)
- Mirela Mackic-Djurovic
- Center for Genetic, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Sabaheta Hasic
- Department of Medical Biochemistry, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Emina Kiseljakovic
- Department of Medical Biochemistry, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Dunja Rukavina
- Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Slavka Ibrulj
- Center for Genetic, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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119
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de Alencar Filho AV, Dos Santos Junior VE, da Silva Calixto M, Santos N, Heimer MV, Rosenblatt A. Evaluation of the genotoxic effects of formocresol application in vital pulp therapy of primary teeth: a clinical study and meta-analysis. Clin Oral Investig 2018; 22:2553-2558. [PMID: 29404812 DOI: 10.1007/s00784-018-2352-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
Abstract
OBJECTIVES This in vivo research investigated whether pulp treatments using formocresol for 7 days would cause mutagenic changes in children's lymphocytes. MATERIALS AND METHODS The mutagenicity was tested in lymphocyte cultures established from the peripheral blood of children living in Brazil. The samples consisted of 2000 cells from teeth undergoing formocresol pulpotomies in which the formocresol pellet was sealed in the primary tooth for 7 days. It was removed on the seventh day, the base was placed, and the tooth was restored. Two venous blood samples (6-8 ml) were collected from each child; the first was prior to pulp therapy, and the second was 7 days later. Two thousand metaphases were analyzed. The level of significance adopted for the statistics was P < 0.05, and a random effects meta-analysis was performed combining this and two previous studies. RESULTS There was no significant difference found in the metaphase analysis between the blood samples taken before and after the pulpotomy treatment (Wilcoxon signed rank test); however, the meta-analysis showed a significant difference between the combined studies. CONCLUSIONS This study did not reveal any mutagenic effects, but based on the combined meta-analysis, we recommend the careful use of formocresol. CLINICAL RELEVANCE This research helps to bring scientific evidence of the safe use of formocresol in deciduous pulpotomy treatments.
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Affiliation(s)
- Arnoldo Vasconcelos de Alencar Filho
- Department of Preventive and Social Dentistry, Faculty of Dentistry, University of Pernambuco, Av. Gal. Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, 54756-220, Brazil.
| | - Valdeci Elias Dos Santos Junior
- Department of Preventive and Social Dentistry, Faculty of Dentistry, University of Pernambuco, Av. Gal. Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, 54756-220, Brazil
| | | | - Neide Santos
- Department of Genetics, Federal University of Pernambuco, Recife, Brazil
| | - Monica Vilela Heimer
- Department of Preventive and Social Dentistry, Faculty of Dentistry, University of Pernambuco, Av. Gal. Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, 54756-220, Brazil
| | - Aronita Rosenblatt
- Department of Preventive and Social Dentistry, Faculty of Dentistry, University of Pernambuco, Av. Gal. Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, 54756-220, Brazil
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120
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Fernández R, Guillamón A, Gómez-Gil E, Esteva I, Almaraz MC, Cortés-Cortés J, Lamas B, Lema E, Pásaro E. Analyses of karyotype by G-banding and high-resolution microarrays in a gender dysphoria population. Genes Genomics 2018; 40:465-473. [DOI: 10.1007/s13258-017-0646-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 12/29/2017] [Indexed: 12/31/2022]
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121
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Popp I, Punekar M, Telford N, Stivaros S, Chandler K, Minnis M, Castleton A, Higham C, Hopewell L, Gareth Evans D, Raams A, Theil AF, Meyer S, Schindler D. Fanconi anemia with sun-sensitivity caused by a Xeroderma pigmentosum-associated missense mutation in XPF. BMC MEDICAL GENETICS 2018; 19:7. [PMID: 29325523 PMCID: PMC5765604 DOI: 10.1186/s12881-018-0520-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 01/03/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Fanconi anemia (FA) is an inherited genomic instability disorder with congenital and developmental abnormalities, bone marrow failure and predisposition to cancer early in life, and cellular sensitivity to DNA interstrand crosslinks. CASE PRESENTATION A fifty-one-year old female patient, initially diagnosed with FA in childhood on the basis of classic features and increased chromosomal breakage, and remarkable sun-sensitivity is described. She only ever had mild haematological abnormalities and no history of malignancy. To identify and characterise the genetic defect in this lady, who is one of the oldest reported FA patients, we used whole-exome sequencing for identification of causative mutations, and functionally characterized the cellular phenotype. Detection of the novel splice site mutation c.793-2A > G and the previously described missense mutation c.1765C > T (p.Arg589Trp) in XPF/ERCC4/FANCQ assign her as the third individual of complementation group FA-Q. Ectopic expression of wildtype, but not mutant, XPF/ERCC4/FANCQ, in patient-derived fibroblasts rescued cellular resistance to DNA interstrand-crosslinking agents. Patient derived FA-Q cells showed impaired nuclear excision repair capacity. However, mutated XPF/ERCC4/FANCQ protein in our patient's cells, as in the two other patients with FA-Q, was detectable on chromatin, in contrast to XP-F cells, where missense-mutant protein failed to properly translocate to the nucleus. CONCLUSIONS Patients with FA characteristics and UV sensitivity should be tested for mutations in XPF/ERCC4/FANCQ. The missense mutation p.Arg589Trp was previously detected in patients diagnosed with Xeroderma pigmentosum or Cockayne syndrome. Hence, phenotypic manifestations associated with this XPF/ERCC4/ FANCQ mutation are highly variable.
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Affiliation(s)
- Isabell Popp
- Department of Human Genetics, Biozentrum, University of Wurzburg, Am Hubland, 97074, Wurzburg, Germany
| | - Maqsood Punekar
- Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - Nick Telford
- Oncology Cytogenetics, The Christie NHS Foundation Trust, Manchester, UK
| | - Stavros Stivaros
- Institute of Population Health, Centre for Imaging Sciences, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.,Manchester Academic Health Science Centre, Manchester, UK
| | - Kate Chandler
- Manchester Academic Health Science Centre, Manchester, UK.,Department of Genetic Medicine, St Mary's Hospital, Central Manchester Foundation Trust, Manchester, UK
| | - Meenakshi Minnis
- Manchester Academic Health Science Centre, Manchester, UK.,Department of Genetic Medicine, St Mary's Hospital, Central Manchester Foundation Trust, Manchester, UK
| | - Anna Castleton
- Department of Paediatric and Adolescent Oncology, The Christie NHS Foundation Trust, Manchester, UK
| | - Claire Higham
- Department of Paediatric and Adolescent Oncology, The Christie NHS Foundation Trust, Manchester, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK
| | - Louise Hopewell
- Department of Paediatric and Adolescent Oncology, The Christie NHS Foundation Trust, Manchester, UK
| | - D Gareth Evans
- Department of Genetic Medicine, St Mary's Hospital, Central Manchester Foundation Trust, Manchester, UK
| | - Anja Raams
- Department of Molecular Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Arjan F Theil
- Department of Molecular Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Stefan Meyer
- Manchester Academic Health Science Centre, Manchester, UK. .,Department of Paediatric and Adolescent Oncology, The Christie NHS Foundation Trust, Manchester, UK. .,Stem Cell and Leukaemia Proteomics Laboratory, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK. .,Department of Paediatric and Adolescent Oncology, Royal Manchester Children's Hospital, Manchester, UK. .,Paediatric and Adolescent Oncology, Division of Cancer Sciences, University of Manchester, c/o Young Oncology Unit, Christie Hospital, Wilmslow Road, Manchester, M20 6XB, UK.
| | - Detlev Schindler
- Department of Human Genetics, Biozentrum, University of Wurzburg, Am Hubland, 97074, Wurzburg, Germany.
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Srilekha A, Mln D, Sunitha T, Venkateshwari A. A novel de novo autosomal translocation 46, XX, t (5; 8) in a female with primary amenorrhea. Eur J Obstet Gynecol Reprod Biol 2018; 221:201-203. [PMID: 29306565 DOI: 10.1016/j.ejogrb.2017.12.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 12/20/2017] [Accepted: 12/24/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Avvari Srilekha
- Department of Cell Biology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, Telangana, India
| | - Deepika Mln
- Department of Cell Biology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, Telangana, India
| | - Tella Sunitha
- Department of Cell Biology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, Telangana, India
| | - Ananthapur Venkateshwari
- Department of Cell Biology, Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Begumpet, Hyderabad, Telangana, India.
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123
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Sherikar AS, Dhavale RP, Bhatia MS. Synthesis, docking studies and in vitro evaluation of novel chalcones as potent inhibitors of phosphodiesterase 5 from human platelets and 5A from bovine recombinant. NEW J CHEM 2018. [DOI: 10.1039/c8nj02077a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chalcones with a nitric oxide (NO) donating scaffold and a variety of substituents were synthesized. A docking study was performed and molecules were evaluated for in vitro phosphodiesterase 5 and 5A inhibitory potency.
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Affiliation(s)
- Amol S. Sherikar
- Department of Pharmaceutical Chemistry
- Tatyasaheb Kore College of Pharmacy
- Dist-Kolhapur-416 113
- India
| | - Rakesh P. Dhavale
- Department of Pharmaceutical Chemistry
- Bharati Vidyapeeth College of Pharmacy, Kolhapur
- Kolhapur-416 013
- India
| | - Manish S. Bhatia
- Department of Pharmaceutical Chemistry
- Bharati Vidyapeeth College of Pharmacy, Kolhapur
- Kolhapur-416 013
- India
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124
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Historical and Clinical Perspectives on Chromosomal Translocations. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1044:1-14. [PMID: 29956287 DOI: 10.1007/978-981-13-0593-1_1] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Chromosomal translocations, rearrangements involving the exchange of segments between chromosomes, were documented in humans in 1959. The first accurately reported clinical phenotype resulting from a translocation was that of Down syndrome. In a small percentage of Down syndrome cases, an extra 21q is provided by a Robertsonian translocation chromosome, either occurring de novo or inherited from a phenotypically normal parent with the translocation chromosome and a balanced genome of 45 chromosomes. Balanced translocations, including both Robertsonian and reciprocal translocations, are typically benign, but meiosis in germ cells with balanced translocations may result in meiotic arrest and subsequent infertility, or in unbalanced gametes, with attendant risks of miscarriage and unbalanced progeny. Most reciprocal translocations are unique. A few to several percent of translocations disrupt haploinsufficient genes or their regulatory regions and result in clinical phenotypes. Balanced translocations from patients with clinical phenotypes have been valuable in mapping disease genes and in illuminating cis-regulatory regions. Mapping of discordant mate pairs from long-insert, low-pass genome sequencing now permits efficient and cost-effective discovery and nucleotide-level resolution of rearrangement breakpoints, information that is absolutely necessary for interpreting the etiology of clinical phenotypes in patients with rearrangements. Pathogenic translocations and other balanced chromosomal rearrangements constitute a class of typically highly penetrant mutation that is cryptic to both clinical microarray and exome sequencing. A significant proportion of rearrangements include additional complexity that is not visible by conventional karyotype analysis. Some proportion of patients with negative findings on exome/genome sequencing and clinical microarray will be found to have etiologic balanced rearrangements only discoverable by genome sequencing with analysis pipelines optimized to recover rearrangement breakpoints.
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125
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Silva MOM, Armada JLADE, Verona CES, Heliodoro G, Nogueira DM. Cytogenetics and Molecular Genetic Analysis of Chimerism in Marmosets (Callithrix: Primates). AN ACAD BRAS CIENC 2017; 89:2793-2804. [PMID: 29267796 DOI: 10.1590/0001-3765201720170484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 09/11/2017] [Indexed: 11/22/2022] Open
Abstract
The birth of fraternal twins is a characteristic frequently observed in callitrichids. Cytogenetic studies have demonstrated hematopoietic chimerism in marmosets with the occurrence of two cell lines 2n=46,XX/46,XY in females and males co-twins, without phenotypic changes. Amplification by PCR have also been used to verify the presence of the SRY gene in female chimaeras. Our aim was to verify the occurrence of chimerism in Callithrix sp. individuals considered as hybrids according to their intermediate phenotypes between C. jacchus and C. penicillata. Blood samples from 37 Callithrix sp. individuals were collected. Hematopoietic chimerism 2n=46,XX/46,XY was detected by cytogenetic analysis in five individuals, three males and two females. A fragment of approximately 200bp of the SRY gene was amplified in seven females with normal external genitalia. The percentage of 32% of chimeric individuals detected in the present study is similar to that observed for pure specimens of Callithrix. These data suggests that hybridization probably does not interfere with the occurrence of twin gestation, nor of chimerism. Although cytogenetics is the main tool to identify the two cell lineages present in cases of chimerism, the amplification of the SRY gene by PCR has proved to be more efficient to identify the Y chromosome in cases of chimeric female marmoset.
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Affiliation(s)
- Monique O M Silva
- Programa de Pós-Graduação em Biologia Animal, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro/UFRRJ, Rodovia BR 465, Km 7, 23890-000 Seropédica, RJ, Brazil
| | - Jorge Luís A DE Armada
- Departamento de Genética, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro/UFRRJ, Rodovia BR 465, Km 7, 23890-000 Seropédica, RJ, Brazil
| | - Carlos Eduardo S Verona
- Instituto Brasileiro para Medicina da Conservação/Instituto Tríade, Rua Silveira Lobo 32, Caixa Postal 48, Casa Forte, 52061-030 Recife, PE, Brazil
| | - Gabriela Heliodoro
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro/JBRJ, Rua Jardim Botânico, 1008, 22470-180 Jardim Botânico, RJ, Brazil
| | - Denise M Nogueira
- Departamento de Genética, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro/UFRRJ, Rodovia BR 465, Km 7, 23890-000 Seropédica, RJ, Brazil
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126
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Alqudah MA, Al-Ashwal FY, Alzoubi KH, Alkhatatbeh M, Khabour O. Vitamin E protects human lymphocytes from genotoxicity induced by oxaliplatin. Drug Chem Toxicol 2017; 41:281-286. [DOI: 10.1080/01480545.2017.1384835] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mohammad A.Y. Alqudah
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Fahmi Y. Al-Ashwal
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H. Alzoubi
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Mohammad Alkhatatbeh
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, Jordan
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127
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Ghosh S, Roy S, Pal P, Dutta A, Halder A. Cytogenetic analysis of patients with primary amenorrhea in Eastern India. J OBSTET GYNAECOL 2017; 38:270-275. [PMID: 29022424 DOI: 10.1080/01443615.2017.1353595] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Amenorrhea is the absence of menstruation in women of reproductive age. Previous reports suggest that chromosomal abnormality is the second most common cause of amenorrhoea. Early referral for cytogenetic evaluation is recommended for the identification of underlying chromosomal aberrations in amenorrhoea patients. This was an observational study which was conducted in Vivekananda Institute of Medical sciences, Kolkata, during January 2013-December 2015. This study aims to estimate the frequency and types of chromosomal abnormalities in primary amenorrhoea (PA) patients in Eastern India and correlate their hormonal profile with chromosomal reports. Clinical features of 150 patients were recorded with clinical expertise. Peripheral venous blood was taken following informed consent, followed by karyotyping for chromosomal analysis. Results revealed 76.1% of PA with normal female karyotype (46, XX) and 23.9% with different abnormal karyotypes. Among the abnormal karyotype constituents, 50% numerical abnormalities, most frequent being Turner syndrome, pure (n = 12, 8%) and mosaic (n = 5, 3.3%). Three cases (2%) showed male (XY) karyotype. The other cases showed X structural abnormalities. This study emphasises the need for cytogenetic analysis as integral part of the diagnostic protocol in case of PA for precise identification of chromosomal abnormalities and for appropriate management and counselling of these patients.
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Affiliation(s)
- Shanoli Ghosh
- a Department of Genetics , Vivekananda Institute of Medical Sciences , Kolkata , India
| | - Sanchita Roy
- b Department of Anatomy , Institute of Post-Graduation Medical Education and Research , Kolkata , India
| | - Pritha Pal
- a Department of Genetics , Vivekananda Institute of Medical Sciences , Kolkata , India
| | - Atreyee Dutta
- a Department of Genetics , Vivekananda Institute of Medical Sciences , Kolkata , India
| | - Ajanta Halder
- a Department of Genetics , Vivekananda Institute of Medical Sciences , Kolkata , India
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130
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Cobanoglu H, Coskun M, Çayir A, Coskun M. In vitro genotoxic and cytotoxic effects of doxepin and escitalopram on human peripheral lymphocytes. Drug Chem Toxicol 2017; 41:238-244. [PMID: 28854817 DOI: 10.1080/01480545.2017.1365885] [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] [Indexed: 10/19/2022]
Abstract
Antidepressants are drugs used for the treatment of many psychiatric conditions including depression. There are findings suggesting that these drugs might have genotoxic, carcinogenic, and/or mutagenic effects. Therefore, the present in vitro study is intended to investigate potential genotoxic and cytotoxic effects of the antidepressants escitalopram (selective serotonin reuptake inhibitor) and doxepin (Tricyclic antidepressant) on human peripheral lymphocytes cytokinesis-block micronucleus (CBMN), sister chromatid exchange (SCE), and single cell gel electrophoresis (alkaline comet assay) were used for the purpose of the study. In the study, four different concentrations of both drugs (1, 2.5, 5, and 10 µg/mL) were administered to human peripheral lymphocytes for 24 h. The tested concentrations of both drugs were found to exhibit no cytotoxic and mitotic inhibitory effects. SCE increase caused by 5 and 10 µg/mL of escitalopram was found statistically significant, while no statistically significant increase was observed in DNA damage and micronucleus (MN) formation. Moreover, the increase caused by doxepin in MN formation was not found statistically significant. Besides, 10 µg/mL of doxepin was demonstrated to significantly increase arbitrary unit and SCE formation. These findings suggest that the investigated concentrations of escitalopram and doxepin were non-cytotoxic but potentially genotoxic at higher concentrations.
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Affiliation(s)
- Hayal Cobanoglu
- a Health Services Vocational College, Çanakkale Onsekiz Mart University , Çanakkale , Turkey
| | - Mahmut Coskun
- b Faculty of Medicine, Department of Medical Biology , Çanakkale Onsekiz Mart University , Terzioglu Campus , Çanakkale , Turkey
| | - Akin Çayir
- a Health Services Vocational College, Çanakkale Onsekiz Mart University , Çanakkale , Turkey
| | - Munevver Coskun
- a Health Services Vocational College, Çanakkale Onsekiz Mart University , Çanakkale , Turkey
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Deepti K, Amperayani KR, Yarla NS, Parimi UD. In vitro Cytotoxic and Genotoxic Evaluation of Morinda tinctoria Roxb. Leaf Extracts. Pharm Chem J 2017. [DOI: 10.1007/s11094-017-1602-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Therkelsen AJ. “SANDWICH” TECHNIQUE FOR THE ESTABLISHMENT OF CULTURES OF HUMAN SKIN FOR CHROMOSOME INVESTIGATION. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/apm.1964.61.2.317] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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134
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PEDERSEN B. TWO CASES OF CHRONIC MYELOID LEUKAEMIA WITH PRESUMABLY IDENTICAL 47-CHROMOSOME CELL-LINES IN THE BLOOD. ACTA ACUST UNITED AC 2017; 61:497-502. [PMID: 14185482 DOI: 10.1111/apm.1964.61.4.497] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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135
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PEDERSEN B. CHROMOSOME ABERRATIONS IN BLOOD, BONE MARROW, AND SKIN FROM A PATIENT WITH ACUTE LEUKAEMIA TREATED WITH 6-MERCAPTOPURINE. ACTA ACUST UNITED AC 2017; 61:261-7. [PMID: 14162803 DOI: 10.1111/apm.1964.61.2.261] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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136
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Differential chromosomal organization between Saguinus midas and Saguinus bicolor with accumulation of differences the repetitive sequence DNA. Genetica 2017. [PMID: 28634866 DOI: 10.1007/s10709-017-9971-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Saguinus is the largest and most complex genus of the subfamily Callitrichinae, with 23 species distributed from the south of Central America to the north of South America with Saguinus midas having the largest geographical distribution while Saguinus bicolor has a very restricted one, affected by the population expansion in the state of Amazonas. Considering the phylogenetic proximity of the two species along with evidence on the existence of hybrids between them, as well as cytogenetic studies on Saguinus describing a conserved karyotypic macrostructure, we carried out a physical mapping of DNA repeated sequences in the mitotic chromosome of both species, since these sequences are less susceptible to evolutionary pressure and possibly perform an important function in speciation. Both species presented 2n = 46 chromosomes; in S. midas, chromosome Y is the smallest. Multiple ribosomal sites occur in both species, but chromosome pairs three and four may be regarded as markers that differ the species when subjected to G banding and distribution of retroelement LINE 1, suggesting that it may be cytogenetic marker in which it can contribute to identification of first generation hybrids in contact zone. Saguinus bicolor also presented differences in the LINE 1 distribution pattern for sexual chromosome X in individuals from different urban fragments, probably due to geographical isolation. In this context, cytogenetic analyses reveal a differential genomic organization pattern between species S. midas and S. bicolor, in addition to indicating that individuals from different urban fragments have been accumulating differences because of the isolation between them.
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137
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Mohan S, Koshy T, Vekatachalam P, Nampoothiri S, Yesodharan D, Gowrishankar K, Kumar J, Ravichandran L, Joseph S, Chandrasekaran A, Paul SFD. Subtelomeric rearrangements in Indian children with idiopathic intellectual disability/developmental delay: Frequency estimation & clinical correlation using fluorescence in situ hybridization (FISH). Indian J Med Res 2017; 144:206-214. [PMID: 27934799 PMCID: PMC5206871 DOI: 10.4103/0971-5916.195031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022] Open
Abstract
Background & objectives: Subtelomeres are prone to deleterious rearrangements owing to their proximity to unique sequences on the one end and telomeric repetitive sequences, which increase their tendency to recombine, on the other end. These subtelomeric rearrangements resulting in segmental aneusomy are reported to contribute to the aetiology of idiopathic intellectual disability/developmental delay (ID/DD). We undertook this study to estimate the frequency of subtelomeric rearrangements in children with ID/DD. Methods: One hundred and twenty seven children with idiopathic ID/DD were tested for subtelomeric rearrangements using karyotyping and FISH. Blood samples were cultured, harvested, fixed and GTG-banded using the standard protocols. Results: Rearrangements involving the subtelomeres were observed in 7.8 per cent of the tested samples. Detection of rearrangements visible at the resolution of the karyotype constituted 2.3 per cent, while those rearrangements detected only with FISH constituted 5.5 per cent. Five deletions and five unbalanced translocations were detected. Analysis of parental samples wherever possible was informative regarding the inheritance of the rearrangement. Interpretation & conclusions: The frequency of subtelomeric rearrangements observed in this study was within the reported range of 0-35 per cent. All abnormal genotypes were clinically correlated. Further analysis with array technologies presents a future prospect. Our results suggest the need to test individuals with ID/DD for subtelomeric rearrangements using sensitive methods such as FISH.
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Affiliation(s)
- Shruthi Mohan
- Department of Human Genetics, Sri Ramachandra University, Porur, India
| | - Teena Koshy
- Department of Human Genetics, Sri Ramachandra University, Porur, India
| | | | - Sheela Nampoothiri
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences, Kochi, India
| | - Dhanya Yesodharan
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences, Kochi, India
| | - Kalpana Gowrishankar
- Department of Medical Genetics, CHILDS Trust Medical Research Foundation, Kanchi Kamakoti CHILDS Trust Hospital, Chennai, India
| | - Jeevan Kumar
- Department of Medical Genetics, CHILDS Trust Medical Research Foundation, Kanchi Kamakoti CHILDS Trust Hospital, Chennai, India
| | | | - Santhosh Joseph
- Department of Radiology, Sri Ramachandra University, Porur, India
| | | | - Solomon F D Paul
- Department of Human Genetics, Sri Ramachandra University, Porur, India
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138
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Witczak M, Wilczyński J, Gulczyńska E, Talar T, Mordalska A, Łopaczyńska D, Ferenc T. What is the impact of gestational diabetes mellitus on frequency of structural chromosome aberrations in pregnant women and their offspring? MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2017; 818:27-30. [DOI: 10.1016/j.mrgentox.2017.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 12/16/2022]
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139
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Chaves TVS, Islam MT, de Moraes MO, de Alencar MVOB, Gomes DCV, de Carvalho RM, Maluf SW, de Moura do Amaral FP, Paz MFCJ, Cerqueira GS, Rolim HML, de Castro E Sousa JM, de Carvalho Melo-Cavalcante AA, de Moraes MEA. Occupational and life-style factors-acquired mutagenicity in agric-workers of northeastern Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15454-15461. [PMID: 28510803 DOI: 10.1007/s11356-017-9150-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
Pesticides are a complex mixture of chemicals used to protect crops from a number of pests and diseases. They have been considered as potential mutagenic agents. This study aims at evaluation of the mutagenic effect of pesticide exposure to agricultural workers through chromosomal aberrations (CA) and micronucleus (MN) assay in peripheral blood lymphocytes and oral mucosal cells, respectively. The exposed group was consisted with 97 farmers, while the control (un-exposed) group consisted of 55. The results showed a significant (p < 0.05) increase in frequency of CA and MN in the exposed group. Both CA and MN profiles were linked to a significant (p < 0.05) co-relation with the confounding factors such as smoking habits, alcohol, vegetables, tea/coffee, vitamins, and sweetener consumptions. More cytogenetic events were denoted in smoking and alcohol consumption as well as non-personal protective equipment (non-PPE) and low/no vegetables user farmers. In conclusion, a deficiency of dietary and medicaments-derived antioxidants, while consumption of alcohol and tobacco, as well as effects of radiation, heavy metal poisoning (especially from sweeteners), and non-PPE using habits, may contribute cytogenetic damage to the workers.
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Affiliation(s)
| | - Muhammad Torequl Islam
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil.
- Department of Pharmacy, Southern University Bangladesh, Mehedigbag, Chittagong, 4000, Bangladesh.
| | | | | | | | | | - Sharbel Weider Maluf
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | | | - Gilberto Santos Cerqueira
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | | | - João Marcelo de Castro E Sousa
- Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Biological Sciences, Federal University of Piauí, Picos, PI, 64.600-000, Brazil
| | - Ana Amélia de Carvalho Melo-Cavalcante
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
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140
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Affiliation(s)
- Peter G. Martin
- Departments of Zoology and Genetics; University of Adelaide; South Australia
| | - David L. Hayman
- Departments of Zoology and Genetics; University of Adelaide; South Australia
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141
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Spirito F, Modesti A, Perticone P, Cristaldi M, Federici R, Rizzoni M. MECHANISMS OF FIXATION AND ACCUMULATION OF CENTRIC FUSIONS IN NATURAL POPULATIONS OF MUS MUSCULUS
L. I. KARYOLOGICAL ANALYSIS OF A HYBRID ZONE BETWEEN TWO POPULATIONS IN THE CENTRAL APENNINES. Evolution 2017; 34:453-466. [DOI: 10.1111/j.1558-5646.1980.tb04835.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/1979] [Revised: 10/02/1979] [Indexed: 11/30/2022]
Affiliation(s)
- Franco Spirito
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
| | - Antonella Modesti
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
| | - Paolo Perticone
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
| | - Mauro Cristaldi
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
| | - Roberto Federici
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
| | - Marco Rizzoni
- Facoltà di Scienze Matematiche, Fisiche e Naturali; Università degli Studi di Roma
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142
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Das P, Chetia B, Prasanth R, Madhavan J, Singaravelu G, Benelli G, Murugan K. Green Nanosynthesis and Functionalization of Gold Nanoparticles as PTP 1B Inhibitors. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1224-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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143
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Paz LNF, Moura LM, Feio DCA, Cardoso MDSG, Ximenes WLO, Montenegro RC, Alves APN, Burbano RR, Lima PDL. Evaluation of in vivo and in vitro toxicological and genotoxic potential of aluminum chloride. CHEMOSPHERE 2017; 175:130-137. [PMID: 28211326 DOI: 10.1016/j.chemosphere.2017.02.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 01/31/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
Aluminum and its compounds are common contaminants of water and food, as well as medications and cosmetics. The wide distribution of the element facilitates the demand for detailed studies of its biological and toxicological effects. This work aimed to evaluate the possible genotoxic and toxic activity resulting from in vivo and in vitro exposure to Al. For in vivo analysis, 40 Swiss mice were used, various concentrations of hydrated aluminum chloride were administered orally. They were analyzed for possible genic activity and metal cytotoxicity using a micronucleus test (MN), and for toxicity through histopathological evaluation of the extracted organs. For in vitro analysis, lymphocytes from the peripheral blood of 3 healthy donors were used. These cells were exposed to the same chemical agent in various concentrations. In vivo study revealed a significant increase in the number of MN in all Al concentrations. Furthermore, significant alterations in all the organs evaluated were verified by the presence of irreversible lesions (such as necrosis). Corroborating these findings, a significant increase in the quantity of MN in all concentrations with lymphocytes in vitro. In light of this, we suggest that this metal presents genotoxic potential and is potentially a cause of pathological disorders.
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Affiliation(s)
- Letícia Nazareth Fernandes Paz
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil
| | - Laís Mesquita Moura
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil
| | - Danielle Cristinne A Feio
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil.
| | - Mirella de Souza Gonçalves Cardoso
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil
| | - Wagner Luiz O Ximenes
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil
| | - Raquel C Montenegro
- Human Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Ana Paula N Alves
- Department of Clinical Dentistry - Health Sciences Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Rommel R Burbano
- Human Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, Brazil
| | - Patrícia Danielle L Lima
- Molecular Biology Laboratory - Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belém, Pará, Brazil
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144
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Cytogenetic analysis in couples with recurrent miscarriages: a retrospective study from Punjab, north India. J Genet 2017; 95:887-894. [PMID: 27994187 DOI: 10.1007/s12041-016-0713-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Human reproduction is considered as the most inefficient event as ~15-20% of human pregnancies end in miscarriage and in the product of miscarriages, chromosomal anomalies are a common occurrence. The aim of the present retrospective study was to assess the frequency of chromosomal aberrations in couples with recurrent miscarriages in the region of Punjab and to compare with worldwide frequencies. In this study, a total of 440 cases were referred between the period 1995-2015. After lymphocyte culturing, giemsa-trypsin banding was done for each case to assess the chromosomal anomalies. The frequency of chromosomal aberrations among couples was found to be 3.41% in our study. Among these aberrations, balanced reciprocal translocations formed the largest group with 60% anomalies. We would conclude that clinicians should understand the importance of chromosomal analysis in these couples and refer them for karyotyping after two miscarriages to rule out the possible genetic cause of recurrent miscarriages.
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145
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Christobher S, Periyasamy M, Syed Mohamed H, Sadiq Bukhari A, Karthickkumar A, Balachandar V. Cytogenetical analysis in blood lymphocytes of cigarette smokers in Tiruchirappalli district, Tamil Nadu, India. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2017. [DOI: 10.1016/j.ejmhg.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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146
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Tomazella IM, Abril VV, Duarte JMB. Identifying Mazama gouazoubira (Artiodactyla; Cervidae) chromosomes involved in rearrangements induced by doxorubicin. Genet Mol Biol 2017; 40:460-467. [PMID: 28590504 PMCID: PMC5488465 DOI: 10.1590/1678-4685-gmb-2016-0275] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 01/17/2017] [Indexed: 11/22/2022] Open
Abstract
The process of karyotype evolution in Cervidae from a common ancestor (2n = 70, FN = 70) has been marked by complex chromosomal rearrangements. This ancestral karyotype has been retained by the current species Mazama gouazoubira (Fischer 1814), for which a chromosomal polymorphism (Robertsonian translocations and the presence of B chromosomes) has been described, presumably caused by a chromosome fragility. Thus, this study has identified doxorubicin-induced chromosome aberrations and mapped the regions involved in breaks, which may be related to the chromosome evolution process. G-banding pattern showed that 21 pairs of chromosomes presented chromosomal aberrations, 60% of the total chromosome number of the species M. gouazoubira. Among chromosomes that carry aberrations, the region where they were most frequently concentrated was distal relative to the centromere. These data suggest that certain chromosomal regions may be more susceptible to chromosome fragility and consequently could be involved in karyotype differentiation in species of the family Cervidae.
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Affiliation(s)
- Iara Maluf Tomazella
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências
Agrárias e Veterinárias, Câmpus Jaboticabal, Departamento de Zootecnia, Núcleo de
Pesquisa e Conservação de Cervídeos (NUPECCE), Jaboticabal, SP, Brazil
| | - Vanessa Veltrini Abril
- Universidade Federal de Mato Grosso (UFMT), Campus Universitário do
Araguaia, Instituto de Ciências Biológicas e da Saúde (ICBS), Pontal do Araguaia, MT,
Brazil
| | - José Maurício Barbanti Duarte
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências
Agrárias e Veterinárias, Câmpus Jaboticabal, Departamento de Zootecnia, Núcleo de
Pesquisa e Conservação de Cervídeos (NUPECCE), Jaboticabal, SP, Brazil
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147
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Genotypes and Haplotypes of the Estrogen Receptor α Gene ( ESR1 ) Are Associated With Female-to-Male Gender Dysphoria. J Sex Med 2017; 14:464-472. [DOI: 10.1016/j.jsxm.2016.12.234] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 12/16/2016] [Accepted: 12/21/2016] [Indexed: 11/23/2022]
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148
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Tewari S, Khan K, Husain N, Rastogi M, Mishra SP, Srivastav AK. Peripheral Blood Lymphocytes as In Vitro Model to Evaluate Genomic Instability Caused by Low Dose Radiation. Asian Pac J Cancer Prev 2017; 17:1773-7. [PMID: 27221851 DOI: 10.7314/apjcp.2016.17.4.1773] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Diagnostic and therapeutic radiation fields are planned so as to reduce side-effects while maximising the dose to site but effects on healthy tissues are inevitable. Radiation causes strand breaks in DNA of exposed cells which can lead to chromosomal aberrations and cause malfunction and cell death. Several researchers have highlighted the damaging effects of high dose radiation but still there is a lacuna in identifying damage due to low dose radiation used for diagnostic purposes. Blood is an easy resource to study genotoxicity and to estimate the effects of radiation. The micronucleus assay and chromosomal aberration can indicate genetic damage and our present aim was to establish these with lymphocytes in an in vitro model to predict the immediate effects low dose radiation. Blood was collected from healthy individuals and divided into 6 groups with increasing radiation dose i.e., 0Gy, 0.10Gy, 0.25Gy, 0.50Gy, 1Gy and 2Gy. The samples were irradiated in duplicates using a LINAC in the radiation oncology department. Standard protocols were applied for chromosomal aberration and micronucleus assays. Metaphases were stained in Giemsa and 200 were scored per sample for the detection of dicentric or acentric forms. For micronuclei detection, 200 metaphases. Giemsa stained binucleate cells per sample were analysed for any abnormality. The micronuclei (MN) frequency was increased in cells exposed to the entire range of doses (0.1- 2Gy) delivered. Controls showed minimal MN formation (2.0%±0.05) with triple MN (5.6%±2.0) frequency at the lowest dose. MN formation increased exponentially with the radiation dose thereafter with a maximum at 2Gy. Significantly elevated numbers of dicentric chromosomes were also observed, even at doses of 0.1- 0.5Gy, compared to controls, and acentric chromosomes were apparent at 2Gy. In conclusion we can state that lymphocytes can be effectively used to study direct effect of low dose radiation.
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Affiliation(s)
- Shikha Tewari
- Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India E-mail :
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149
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Weise A, Liehr T. Pre- and Postnatal Diagnostics and Research on Peripheral Blood, Bone Marrow, Chorion, Amniocytes, and Fibroblasts. SPRINGER PROTOCOLS HANDBOOKS 2017. [DOI: 10.1007/978-3-662-52959-1_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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150
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Gunski RJ, Cañedo AD, Garnero ADV, Ledesma MA, Coria N, Montalti D, Degrandi TM. Multiple sex chromosome system in penguins ( Pygoscelis, Spheniscidae). COMPARATIVE CYTOGENETICS 2017; 11:541-552. [PMID: 29093802 PMCID: PMC5646662 DOI: 10.3897/compcytogen.v11i3.13795] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/06/2017] [Indexed: 05/09/2023]
Abstract
Penguins are classified in the order Sphenisciformes into a single family, Spheniscidae. The genus Pygoscelis Wagler, 1832, is composed of three species, Pygoscelis antarcticus Forster, 1781, P. papua Forster, 1781 and P. adeliae Hombron & Jacquinot, 1841. In this work, the objective was to describe and to compare the karyotypes of Pygoscelis penguins contributing genetic information to Sphenisciformes. The metaphases were obtained by lymphocyte culture, and the diploid number and the C-banding pattern were determined. P. antarcticus has 2n = 92, P. papua 2n = 94 and P. adeliae exhibited 2n = 96 in males and 2n = 95 in females. The difference of diploid number in P. adeliae was identified as a multiple sex chromosome system where males have Z1Z1Z2Z2 and females Z1Z2W. The C-banding showed the presence of a heterochromatic block in the long arm of W chromosome and Z2 was almost entirely heterochromatic. The probable origin of a multiple system in P. adeliae was a translocation involving the W chromosome and the chromosome ancestral to Z2. The comparison made possible the identification of a high karyotype homology in Sphenisciformes which can be seen in the conservation of macrochromosomes and in the Z chromosome. The karyotypic divergences in Pygoscelis are restricted to the number of microchromosomes and W, which proved to be highly variable in size and morphology. The data presented in this work corroborate molecular phylogenetic proposals, supporting the monophyletic origin of penguins and intraspecific relations.
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Affiliation(s)
| | | | | | | | - Nestor Coria
- Depto. de Biología – Aves, Inst. Antártico Argentino, Buenos Aires, Argentina
| | - Diego Montalti
- Depto. de Biología – Aves, Inst. Antártico Argentino, Buenos Aires, Argentina
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