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Martínez-Leal B, Álvarez-Banderas KI, Sánchez-Dávila H, Dávila-Rodríguez MI, Cortés-Gutiérrez EI. Human papillomavirus as a single infection in pregnant women from Northeastern Mexico: Cross-sectional study. Int J Reprod Biomed 2020; 18:129-134. [PMID: 32259007 PMCID: PMC7097173 DOI: 10.18502/ijrm.v18i2.6433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 12/01/2018] [Accepted: 10/08/2019] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The role of human papillomavirus (HPV) as single or multiple infections in pregnant women would be relevant to determine the time to progression and/or the time to regression of cervical lesions. OBJECTIVE In this preliminary study, we determined the prevalence of HPV as single or multiple infections in pregnant women from Northeastern Mexico. MATERIALS AND METHODS Samples from 31 pregnant and 62 nonpregnant women were examined between January 2015 and November 2015 at UMAE-23 of the Instituto Mexicano del Seguro Social (IMSS). The samples of cervicovaginal exudate were obtained for HPV DNA detection using the INNO-LiPA test, and HPV infections were analyzed as single or multiple infections. Participants completed a questionnaire on sociodemographic, gynecological, obstetric, and sexual behavior characteristics. RESULTS The mean age of the pregnant women was 25.7 ± 4.8 yr, with an average time of pregnancy of 6 ± 1 months at the time of the study. With respect to age, parity, smoking history, or oral contraceptive use no statistically significant differences between the two studied groups was observed. The HPV infection was 2.7 times higher in pregnant women (35%) than in the control group (13%). In total, 78% of the pregnant women who were HPV-positive presented with single infections compared with 28% of the nonpregnant women. CONCLUSION A higher prevalence of HPV as a single infection was found in this sample of pregnant Mexican women. Follow-up is necessary to evaluate the persistence or regression of the infection.
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Affiliation(s)
- Bernardo Martínez-Leal
- Universidad de Monterrey, Vicerrectoría Ciencias de la Salud, San Pedro Garza García, México
| | - Karla Ivette Álvarez-Banderas
- Department of Clinical Dysplasia, Gynecology and Obstetrics No.23 Hospital, Mexican Institute of Social Security, Monterrey, Mexico
| | - Homero Sánchez-Dávila
- Department of Clinical Dysplasia, Gynecology and Obstetrics No.23 Hospital, Mexican Institute of Social Security, Monterrey, Mexico
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Cortés-Gutiérrez EI, García-Salas JA, Dávila-Rodríguez MI, Ceyca-Contreras JP, González-Ramírez EG. Evaluation of oxidative DNA damage in pigeon erythrocytes using DNA breakage detection-fluorescence in situ hybridization (DBD-FISH). Biotech Histochem 2019; 94:600-605. [PMID: 31441668 DOI: 10.1080/10520295.2019.1618495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
DNA breakage detection-fluorescence in situ hybridization (DBD-FISH) enables detection and quantification of DNA breakage in the entire genome or within specific DNA sequences in single cells. We used this method to visualize and evaluate DNA damage in pigeon erythrocytes that were induced by elevated temperature and hydrogen peroxide. We also examined morphological changes in the cell nuclei. DBD-FISH demonstrated a significant increase of DNA damage in a temperature dependent manner, which resulted in nuclear abnormalities associated with apoptotic cells. These cells gave strong nuclear fluorescent signals that indicated cell death.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Faculty of Biological Sciences, Laboratory of Ornithology, Universidad Autonoma de Nuevo Leon, Monterrey, México
| | - J A García-Salas
- Faculty of Biological Sciences, Laboratory of Ornithology, Universidad Autonoma de Nuevo Leon, Monterrey, México
| | - M I Dávila-Rodríguez
- Department of Genetics, Center for Biomedical Research of the Northeast, Instituto Mexicano del Seguro Social, Monterrey, México
| | - J P Ceyca-Contreras
- Faculty of Biological Sciences, Laboratory of Ornithology, Universidad Autonoma de Nuevo Leon, Monterrey, México
| | - E G González-Ramírez
- Faculty of Biological Sciences, Laboratory of Ornithology, Universidad Autonoma de Nuevo Leon, Monterrey, México
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García-Vielma C, Dávila-Rodríguez MI, Cortés-Gutiérrez EI. Chromosome segregation and chromatin integrity in spermatozoa from a t(2;8)(p24;p21)mat carrier: A case-report. Int J Reprod Biomed 2018; 16:601-608. [PMID: 30643868 PMCID: PMC6312710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Chromosome rearrangements can produce genomic imbalance in gametes which causes a drastic decrease in fertility. Several studies have described the relationship between high levels of DNA damage and chromosomal alterations in the spermatozoa of infertile or subfertile males. However, the nature of this relation is poorly understood. In this study, the meiotic segregation pattern and chromatin integrity were analyzed in the ejaculated spermatozoa of a 46, XY, t(2;8)(p24;p21)mat carrier with normozoospermia and a lack of conception. CASE A 39-year-old infertile man with a 46, XY, t(2;8)(p24;p21)mat inherited from his mother, was studied. The wife of the proband (30 yrs old) had a normal karyotype and no reproductive problems. The meiotic segregation pattern and aneuploidy of chromosome-8 and chromosome-2 were analyzed by FISH. Sperm DNA damage was evaluated by the Sperm Dispersion Chromatin, alkaline comet assay and DNA breaking detection. Five healthy male donors were included as controls. The frequency of genetically unbalanced spermatozoa was 61.6%. Analysis of the aneuploidy of chromosome-8 and chromosome-Y revealed approximately three and 24 fold increased level respectively in comparison with that of the control group. CONCLUSION We suggest that the accumulation of genetically unbalanced spermatozoa, and increased sperm aneuploidy level is related to male infertility. Interestingly, the case described here has a high level of sperm chromosomal imbalance appears to be linked to sperm DNA fragmentation status. This information could be useful in assisted reproductive techniques.
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Affiliation(s)
- Catalina García-Vielma
- Department of Genetics, Centro de Investigación Biomédica Del Noreste (CIBIN), Instituto Mexicano Del Seguro Social (IMSS), Monterrey, Nuevo León, México.
| | - Martha Imelda Dávila-Rodríguez
- Department of Genetics, Centro de Investigación Biomédica Del Noreste (CIBIN), Instituto Mexicano Del Seguro Social (IMSS), Monterrey, Nuevo León, México.
| | - Elva Irene Cortés-Gutiérrez
- Department of Genetics, Centro de Investigación Biomédica Del Noreste (CIBIN), Instituto Mexicano Del Seguro Social (IMSS), Monterrey, Nuevo León, México.,Faculty of Biological Sciences, Universidad Autónoma de Nuevo León, UANL, Monterrey, Nuevo León, México.
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García-Vielma C, Imelda Dávila-Rodríguez M, Cortés-Gutiérrez EI. Chromosome segregation and chromatin integrity in spermatozoa from a t(2;8)(p24;p21)mat carrier: A case-report. Int J Reprod Biomed 2018. [DOI: 10.29252/ijrm.16.9.601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Castro-Garza J, Luévano-Martínez ML, Villarreal-Treviño L, Gosálvez J, Fernández JL, Dávila-Rodríguez MI, García-Vielma C, González-Hernández S, Cortés-Gutiérrez EI. Mycobacterium tuberculosis promotes genomic instability in macrophages. Mem Inst Oswaldo Cruz 2018; 113:161-166. [PMID: 29412354 PMCID: PMC5804307 DOI: 10.1590/0074-02760170281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/31/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Mycobacterium tuberculosis is an intracellular pathogen, which may either block cellular defensive mechanisms and survive inside the host cell or induce cell death. Several studies are still exploring the mechanisms involved in these processes. OBJECTIVES To evaluate the genomic instability of M. tuberculosis-infected macrophages and compare it with that of uninfected macrophages. METHODS We analysed the possible variations in the genomic instability of Mycobacterium-infected macrophages using the DNA breakage detection fluorescence in situ hybridisation (DBD-FISH) technique with a whole human genome DNA probe. FINDINGS Quantitative image analyses showed a significant increase in DNA damage in infected macrophages as compared with uninfected cells. DNA breaks were localised in nuclear membrane blebs, as confirmed with DNA fragmentation assay. Furthermore, a significant increase in micronuclei and nuclear abnormalities were observed in infected macrophages versus uninfected cells. MAIN CONCLUSIONS Genomic instability occurs during mycobacterial infection and these data may be seminal for future research on host cell DNA damage in M. tuberculosis infection.
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Affiliation(s)
- Jorge Castro-Garza
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, México
| | - Miriam Lorena Luévano-Martínez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, México.,Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, Monterrey, NL, México
| | | | - Jaime Gosálvez
- Universidad Autónoma de Madrid, Unit of Genetics, Department of Biology, Madrid, Spain
| | - José Luis Fernández
- Genetics Unit, Complejo Hospitalario Universitario A Coruña, La Coruña, Spain
| | | | - Catalina García-Vielma
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, México
| | - Silvia González-Hernández
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, México
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González-Hernández S, González-Ramírez D, Dávila-Rodríguez MI, Jimenez-Arellanez A, Meckes-Fischer M, Said-Fernández S, Cortés-Gutiérrez EI. Absence of toxicity and genotoxicity in an extract of Rubus coriifolius. Genet Mol Res 2016; 15:gmr-15-04-gmr.15048966. [PMID: 27966744 DOI: 10.4238/gmr15048966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Rubus coriifolius Focke is a wild plant from the Rosaceae family. It grows in both Guatemala and Mexico. The polar extract of the aerial parts of this plant has antibacterial, anti-inflammatory, and anti-protozoal activities. These properties may explain the traditional use of this plant. In vivo and in vitro assays were used to assess the genotoxic and toxic effects of an ethanol extract of the aerial parts of R. coriifolius. Three groups of rats were orally administered the R. coriifolius extract diluted in ethanol (5%) at doses of 1.89 mg/kg body weight (low dose), 4.72 mg/kg body weight (medium dose), and 9.44 mg/kg body weight (high dose) for 3 weeks. Genotoxic/cytotoxic effects induced by the R. coriifolius ethanol extract were evaluated in vivo by a micronuclei (MN) test in rat's bone marrow cells and in vitro by MN and sister chromatid exchange (SCE) in human lymphocyte cultures. In vivo genotoxicity analyses revealed that the average number of micronucleated polychromatic erythrocytes and the polychromatic erythrocyte/red blood cell ratio at all doses were not significantly different from those of the negative control. In vitro genotoxicity analyses showed that MN, SCE, and proliferative index frequencies in a human lymphocyte cell culture were not significantly different from those of the negative control. These results demonstrate that the ethanol extract of R. coriifolius aerial parts is not toxic or mutagenic (in vitro and in vivo) and does not affect cell proliferation at the concentrations analyzed.
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Affiliation(s)
- S González-Hernández
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, Mexico
| | - D González-Ramírez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, Mexico
| | - M I Dávila-Rodríguez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, Mexico
| | - A Jimenez-Arellanez
- Unidad de Investigación Médica en Farmacología, UMAE Hospital de Especialidades, Centro Médico Nacional-Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - M Meckes-Fischer
- Centro de Diagnóstico em Metabolismo Energético y Medicina Mitocondrial, Mexico City, Mexico
| | - S Said-Fernández
- Departament of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
| | - E I Cortés-Gutiérrez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, Mexico
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García-Vielma C, Dávila-Rodríguez MI, Hernández-Garza F, Cerda-Flores RM, Cortés-Gutiérrez EI. Digital image analysis of AgNORs in cervical smears of women with premalignant and malignant lesions of the uterine cervix. Biotech Histochem 2015; 91:102-7. [PMID: 26528580 DOI: 10.3109/10520295.2015.1078909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We performed a hospital-based, unmatched case-control study to investigate the association between progressive stages of cervical neoplasia and digital analysis of cell proliferation by silver stained nucleolus organizer region associated proteins (AgNORs). We measured cell proliferation levels in the cervical epithelial cells of 10 women with low grade squamous intraepithelial lesions (LG-SIL), eight with high grade squamous intraepithelial lesions (HG-SIL), 11 with cervical cancer (CC) and eight with no cervical lesions (controls) using the AgNORs technique. Cell proliferation was measured by digital image analysis (DIA). DIA revealed increased total areas of AgNORs in HG-SIL and CC compared to LG-SIL and control patients. AgNORs with a kidney or cluster shape exhibited greater areas than those with a spherical or long shape. We propose a cut-off of 118 pixels to differentiate benign (control and LG-SIL) from malignant (HG-SIL and CC) lesions. DIA of AgNORs is a simple and inexpensive method for studying proliferation. The increased total area of AgNORs in malignant lesions provides information regarding cell behavior and may be related to cervical carcinogenesis; however, further validation studies are required to establish its usefulness in cytological analysis.
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Affiliation(s)
- C García-Vielma
- a Department of Genetics , Northeastern Biomedical Research Center, The Mexican Social Security Institute (IMSS) , Monterrey , Mexico
| | - M I Dávila-Rodríguez
- a Department of Genetics , Northeastern Biomedical Research Center, The Mexican Social Security Institute (IMSS) , Monterrey , Mexico
| | - F Hernández-Garza
- b Dysplasia Clinic, Medical Unit of High Specialty No. 23-IMSS , Monterrey , Mexico
| | - R M Cerda-Flores
- c Nursing Faculty, Autonomous University of Nuevo León , Monterrey , Mexico
| | - E I Cortés-Gutiérrez
- a Department of Genetics , Northeastern Biomedical Research Center, The Mexican Social Security Institute (IMSS) , Monterrey , Mexico
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Flores-Miramontes MG, Torres-Reyes LA, Alvarado-Ruíz L, Romero-Martínez SA, Ramírez-Rodríguez V, Balderas-Peña LMA, Vallejo-Ruíz V, Piña-Sánchez P, Cortés-Gutiérrez EI, Jave-Suárez LF, Aguilar-Lemarroy A. Human papillomavirus genotyping by Linear Array and Next-Generation Sequencing in cervical samples from Western Mexico. Virol J 2015; 12:161. [PMID: 26444975 PMCID: PMC4596464 DOI: 10.1186/s12985-015-0391-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 09/22/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The Linear Array® (LA) genotyping test is one of the most used methodologies for Human papillomavirus (HPV) genotyping, in that it is able to detect 37 HPV genotypes and co-infections in the same sample. However, the assay is limited to a restricted number of HPV, and sequence variations in the detection region of the HPV probes could give false negatives results. Recently, 454 Next-Generation sequencing (NGS) technology has been efficiently used also for HPV genotyping; this methodology is based on massive sequencing of HPV fragments and is expected to be highly specific and sensitive. In this work, we studied HPV prevalence in cervixes of women in Western Mexico by LA and confirmed the genotypes found by NGS. METHODS Two hundred thirty three cervical samples from women Without cervical lesions (WCL, n = 48), with Cervical intraepithelial neoplasia grade 1 (CIN I, n = 98), or with Cervical cancer (CC, n = 87) were recruited, DNA was extracted, and HPV positivity was determined by PCR amplification using PGMY09/11 primers. All HPV- positive samples were genotyped individually by LA. Additionally, pools of amplicons from the PGMY-PCR products were sequenced using 454 NGS technology. Results obtained by NGS were compared with those of LA for each group of samples. RESULTS We identified 35 HPV genotypes, among which 30 were identified by both technologies; in addition, the HPV genotypes 32, 44, 74, 102 and 114 were detected by NGS. These latter genotypes, to our knowledge, have not been previously reported in Mexican population. Furthermore, we found that LA did not detect, in some diagnosis groups, certain HPV genotypes included in the test, such as 6, 11, 16, 26, 35, 51, 58, 68, 73, and 89, which indicates possible variations at the species level. CONCLUSIONS There are HPV genotypes in Mexican population that cannot be detected by LA, which is, at present, the most complete commercial genotyping test. More studies are necessary to determine the impact of HPV-44, 74, 102 and 114 on the risk of developing CC. A greater number of samples must be analyzed by NGS for the most accurate determination of Mexican HPV variants.
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Affiliation(s)
- María Guadalupe Flores-Miramontes
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO)-Instituto Mexicano del Seguro Social (IMSS), Sierra Mojada No. 800, Col. Independencia, 44340, Guadalajara, Jalisco, Mexico. .,Programa de Doctorado en Ciencias Biomédica, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Jalisco, Mexico.
| | - Luis Alberto Torres-Reyes
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO)-Instituto Mexicano del Seguro Social (IMSS), Sierra Mojada No. 800, Col. Independencia, 44340, Guadalajara, Jalisco, Mexico. .,Programa de Doctorado en Ciencias Biomédica, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Jalisco, Mexico.
| | - Liliana Alvarado-Ruíz
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO)-Instituto Mexicano del Seguro Social (IMSS), Sierra Mojada No. 800, Col. Independencia, 44340, Guadalajara, Jalisco, Mexico. .,Programa de Doctorado en Ciencias Biomédica, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Jalisco, Mexico.
| | | | | | - Luz María Adriana Balderas-Peña
- Unidad de Investigación Médica en Epidemiología Clínica, UMAE Hospital de Especialidades, Centro Médico Nacional de Occidente (CMNO)-IMSS, Guadalajara, Jalisco, Mexico.
| | - Verónica Vallejo-Ruíz
- Centro de Investigación Biomédica de Oriente (CIBIOR)-IMSS, Metepec, Puebla, Mexico.
| | - Patricia Piña-Sánchez
- Laboratorio de Oncología Molecular, Unidad de Investigación Médica en Enfermedades Oncológicas (UIMEO)-IMSS, Mexico City, Mexico.
| | | | - Luis Felipe Jave-Suárez
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO)-Instituto Mexicano del Seguro Social (IMSS), Sierra Mojada No. 800, Col. Independencia, 44340, Guadalajara, Jalisco, Mexico.
| | - Adriana Aguilar-Lemarroy
- División de Inmunología, Centro de Investigación Biomédica de Occidente (CIBO)-Instituto Mexicano del Seguro Social (IMSS), Sierra Mojada No. 800, Col. Independencia, 44340, Guadalajara, Jalisco, Mexico.
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Cortés-Gutiérrez EI, D'ávila-Rodríguez MI, Cerda-Flores RM. Chromosomal damage as prognosis marker in cervical carcinogenesis. Tsitol Genet 2014; 48:54-63. [PMID: 25016830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cancer of the uterine cervix is the third most common cancer in women worldwide and the most common cancer among Mexican and Latin American women. Risk factors that have been associated with the development of cervical intraepithelial neoplasia suggest that Human Papillomavirus (HPV) types 16, 18, 31, and 33 entail a high risk of developing a malignancy of this type. The accumulation of genetic alterations allows the growth of neoplastic cells; chromosomal instability is an event that occurs in the precancerous stages. The candidate cancer risk biomarkers include cytogenetic endpoints, such as chromosomal aberrations, sister chromatid exchange, micronuclei, and the outcomes of comet assay and DNA breakage detection-fluorescence in situ hybridization. The patterns identified in these cytogenetic studies indicate that chromosomal instability is a transient and chromosomally unstable intermediate in the development of cervical lesions. In this context, the mechanisms that may underlie the progressive increase in genetic instability in these patients seem to be related directly to HPV infection. The studies discussed in this paper show that chromosomal instability may serve as a biomarker by predicting the progression of cervical intraepithelial neoplasia. Nevertheless, these results should be validated in larger, prospective studies.
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Cortés-Gutiérrez EI, Dávila-Rodríguez MI, Cerda-Flores RM, Fernández JL, López-Fernández C, Aragón Tovar AR, Gosálvez J. Localisation and quantification of alkali-labile sites in human spermatozoa by DNA breakage detection-fluorescence in situ hybridisation. Andrologia 2014; 47:221-7. [PMID: 24576285 DOI: 10.1111/and.12250] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2014] [Indexed: 11/28/2022] Open
Abstract
The localisation and quantification of constitutive alkali-labile sites (ALSs) were investigated using a protocol of DNA breakage detection plus fluorescence in situ hybridisation (DBD-FISH) and alkaline single-cell gel electrophoresis (SCGE or comet assay), in spermatozoa of infertile and fertile men. Semen samples from 10 normozoospermic patients undergoing infertility treatment and 10 fertile men were included in this study. ALSs were localised and quantified by DBD-FISH. The region most sensitive to alkali treatment in human spermatozoa was located in the basal region of the head. ALSs were more frequent in spermatozoa of infertile men than in those of fertile men. These results were confirmed by SCGE comet assays. In conclusion, the most intense localisation of hybridisation signals in human spermatozoa, representing the highest density of constitutive ALSs, was not randomly distributed and was predominantly located in the base of the head. Moreover, infertile men presented with an increase in ALS frequency. Further studies are necessary to determine the association between ALS, sperm chromatin organisation and infertility.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Department of Genetics, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, IMSS, Monterrey, Mexico
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Hernández-Herrera RJ, Rojas-Patlán L, Garza-Pérez RM, Dávila-Rodríguez M, Cortés-Gutiérrez EI, García-Rodríguez EO, Hernández-Hernández RR. [Chromosomal abnormalities in patients from Obstetrics and Gynaecology hospital]. Rev Med Inst Mex Seguro Soc 2014; 52:90-93. [PMID: 24625490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Chromosomal abnormalities are present in 2-4 % of all newborns, and they cause 20 % of deaths in the first year of life. The estimated prevalence of chromosomal abnormalities is one for each 500-1000 newborns. These abnormalities can be numerical or structural, and they can affect autosomal or sexual chromosomes. They affect from 1 to 3 % of general population, and from 6 to 7 % of individuals with congenital anomalies. METHODS Descriptive study, which included all the registries of cytogenetic analysis (of adults and newborns) made in a genetic laboratory in a period of 14 years. The prevalence of polymorphisms and chromosomal abnormalities in the patients from the Hospital de Ginecoobstetricia 23, Instituto Mexicano del Seguro Social (Monterrey, Nuevo León) was assessed. RESULTS Of 4006 cytogenetic studies, 253 (6.3 %) did not show in vitro growth, 2667 (66.5 %) were normal, and 1175 (29.3 %) were abnormal. Of these, 614 (52.2 %) had polymorphisms, and 561 (47.7 %) structural or numerical chromosomal abnormalities. In regards to these chromosomopathies (561), trisomy 21 was observed in 429 (36.5 %); Turner's syndrome, in 84 (7.1 %); trisomy 18, in 57 (4.8 %); and trisomy 13, in 32 (2.7 %). With G-band technique, we found 93 % of in vitro cell growth. CONCLUSIONS Of these studies, 55 % was performed due to non-numerical abnormalities; 14.4 %, due to structural abnormalities; and the rest, due to polymorphisms.
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12
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Cortés-Gutiérrez EI, Dávila-Rodríguez MI, Fernández JL, López-Fernández C, Gosálvez J. DNA breakage detection-fluorescence in situ hybridization (DBD-FISH) in buccal cells. Eur J Histochem 2012; 56:e49. [PMID: 23361245 PMCID: PMC3567768 DOI: 10.4081/ejh.2012.e49] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 09/06/2012] [Accepted: 09/26/2012] [Indexed: 11/23/2022] Open
Abstract
DNA breakage detection-fluorescence in situ hybridization (DBD-FISH) is a recently developed technique that allows cell-by-cell detection and quantification of DNA breakage in the whole genome or within specific DNA sequences. The present investigation was conducted to adapt the methodology of DBD-FISH to the visualization and evaluation of DNA damage in buccal epithelial cells. DBD-FISH revealed that DNA damage increased significantly according to H2O2 concentration (r2=0.91). In conclusion, the DBD-FISH technique is easy to apply in buccal cells and provides prompt results that are easy to interpret. Future studies are needed to investigate the potential applicability of a buccal cell DBD-FISH model to human biomonitoring and nutritional work.
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Affiliation(s)
- E I Cortés-Gutiérrez
- División de Genética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, IMSS, Monterrey, México.
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Abstract
This study investigated possible variations in the chromatin structure of koilocytes resulting from human papillomavirus (HPV) infection. Alkaline-labile sites (ALS) were detected with the DNA breakage detection–fluorescence in situ hybridization (DBD-FISH) technique using a whole human genome DNA probe obtained from individuals without koilocytosis. The variable levels of ALS present were measured quantitatively using image analysis after whole-genome DNA hybridization. A significant increase in the number of ALS was observed in koilocytes compared with normal cells. We demonstrated that the presence of ALS could be an indicator of chromatin change in koilocytes caused by HPV infection.
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Affiliation(s)
- E I Cortés-Gutiérrez
- División de Genética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, IMSS, Monterrey, México.
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14
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Méndez-López LF, Zapata-Benavides P, Zavala-Pompa A, Aguado-Barrera ME, Pacheco-Calleros J, Rodríguez-Padilla C, Cerda-Flores RM, Cortés-Gutiérrez EI, Dávila-Rodríguez MI. Immunohistochemical analysis of prostate apoptosis response-4 (Par-4) in Mexican women with breast cancer: a preliminary study. Arch Med Res 2010; 41:261-8. [PMID: 20637369 DOI: 10.1016/j.arcmed.2010.05.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Accepted: 05/13/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS We undertook this study to compare the expression level of prostate apoptosis response-4 (Par-4) among patient outcome in two groups of women with breast cancer (short and long survival) and two groups without breast cancer (benign lesion and control). METHODS We included breast specimens with nonhistological abnormalities (eight samples) as a control group. Semiquantitative and quantitative analysis of immunohistochemical staining by image analysis software were used to study the intensity of Par-4 expression. Both methods produced similar results (p>0.05). RESULTS No significant expression of Par-4 was observed in normal breast tissue. Benign lesions and breast cancer tissue showed strong nuclear expression of Par-4, predominantly on epithelial cells and specifically in ductal cells. Par-4 expression was lower in myoepithelial cells and there was no appreciable stromal staining. Significantly less Par-4 reactivity was detected in tissue from patients with a short survival compared with patients with benign lesions and those with a long survival. CONCLUSIONS Our findings suggest that a lower expression level of Par-4 is related to an unfavorable prognosis. A larger prospective study of samples of all patient groups with a longer follow-up is needed to validate this finding.
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Affiliation(s)
- Luis Fernando Méndez-López
- División de Genética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
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15
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Gosálvez J, Crespo F, Vega-Pla JL, López-Fernández C, Cortés-Gutiérrez EI, Devila-Rodriguez MI, Mezzanotte R. Shared Y chromosome repetitive DNA sequences in stallion and donkey as visualized using whole-genomic comparative hybridization. Eur J Histochem 2010; 54:e2. [PMID: 20353909 PMCID: PMC3167294 DOI: 10.4081/ejh.2010.e2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 12/18/2009] [Indexed: 11/23/2022] Open
Abstract
The genome of stallion (Spanish breed) and donkey (Spanish endemic Zamorano-Leonés) were compared using whole comparative genomic in situ hybridization (W-CGH) technique, with special reference to the variability observed in the Y chromosome. Results show that these diverging genomes still share some highly repetitive DNA families localized in pericentromeric regions and, in the particular case of the Y chromosome, a sub-family of highly repeated DNA sequences, greatly expanded in the donkey genome, accounts for a large part of the chromatin in the stallion Y chromosome.
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Affiliation(s)
- J Gosálvez
- Department of Biology, Genetics Unit, Universidad Autonoma de Madrid, Madrid, spain.
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16
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Dávila-Rodríguez MI, Torres-De la Cruz VM, Novelo-Huerta HI, Said-Fernández S, Cerda-Flores RM, Cortés-Gutiérrez EI. Total homocysteine levels in healthy children from the Monterrey metropolitan area, Mexico. Prague Med Rep 2010; 111:135-141. [PMID: 20654003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
Currently, there are indications for determining hyperhomocysteinemia in adulthood as risk factors for cardiovascular diseases, psychiatric disorders, pregnancy complications, birth defects, cognitive impairment in the elderly, in addition to cancer. If hyperhomocysteinemia is determined from childhood, it may be modulated with the provision of an opportunity for public health intervention. The objective of this descriptive study was to determine total homocysteine (tHcy) levels in healthy children from the Monterrey metropolitan area in Mexico. In a peripheral-blood sample collected from 56 healthy children aged 2-10 years, we determined tHcy concentration by high performance liquid chromatography (HPLC) with fluorescence detection. The geometric mean +/- SD was 9.78 +/- 1.73 micromol/l. tHcys of the children studied were homogeneous by age cohort and gender. Nutritional state was classified by body mass index (BMI). Sixty five percent of children who participated in the study had normal BMI, and 96% of the children belong to the low socioeconomic status. In conclusion, to our knowledge this is the first-ever information on homocysteine (Hcy) prevalence in a population of healthy Mexican children. tHcy concentration was higher than that reported in other populations studies. This preliminary study could constitute the baseline for future public health studies.
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Affiliation(s)
- M I Dávila-Rodríguez
- División de Genética, Centro de Investigación Biomédica del Noreste (CIBIN), Instituto Mexicano del Seguro Social (IMSS), Monterrey, Mexico. marthadavila@cibinmty
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17
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Cortés-Gutiérrez EI, Dávila-Rodríguez MI, Vargas-Villarreal J, Hernández-Garza F, Cerda-Flores RM. Association between human papilloma virus-type infections with micronuclei frequencies. Prague Med Rep 2010; 111:35-41. [PMID: 20359436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
To determine the association between Human papillomavirus (HPV)-type infections with the frequency of Micronucleus (MN), a hospital-based, unmatched case-control study was carried out. We evaluated and compared the average number of MN/1,000 cells among three groups of Mexican females. Twenty one women ranging in age from 31-56 years and divided into three groups were studied. Group I comprised seven control women without cervical lesions and with HPV-negative, Group II was composed of seven women with Squamous intraepithelial lesions (SIL) infected with low-risk HPV low-risk, and Group III was made up of seven women with SIL infected with high-risk HPV infection. Analysis of variance (ANOVA) test revealed differences among Groups I (5.14+/-3.02), II (13.43+/-3.41), and III (25.43+/-3.41) (F=67.46; P=0.0001). We demonstrated an association between HPV type infection and higher MN frequencies. However, a larger controlled study with sufficient follow-up will be required to further evaluate the usefulness of this test in the clinical management of women with HPV infection.
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Affiliation(s)
- E I Cortés-Gutiérrez
- División de Genética, Centro de Investigación Biomédica del Noreste, IMSS, Monterrey, México.
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18
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Cortés-Gutiérrez EI, Crespo F, Serres-Dalmau C, Gutiérrez de las Rozas AL, Dávila-Rodríguez MI, López-Fernández C, Gósalvez J. Assessment of Sperm DNA Fragmentation in Stallion (Equus caballus) and Donkey (Equus asinus) Using the Sperm Chromatin Dispersion Test. Reprod Domest Anim 2009; 44:823-8. [DOI: 10.1111/j.1439-0531.2008.01091.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Cortés-Gutiérrez EI, Cerda-Flores RM, Dávila-Rodríguez MI, Hernández-Herrera R, Vargas-Villarreal J, Leal-Garza CH. CHROMOSOMAL ABNORMALITIES AND POLYMORPHISMS IN MEXICAN INFERTILE MEN. ACTA ACUST UNITED AC 2009; 50:261-5. [PMID: 15277004 DOI: 10.1080/01485010490448750] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A cross-sectional study was conducted to estimate the prevalence of chromosome abnormalities and normal variable chromosome features (polymorphisms) in infertile men from northeastern Mexico. Karyotyping was carried out in 326 men with diagnosis of infertility. The sperm counts showed 204 patients with oligozoospermia, 87 with azoospermia and 35 normozoospermia. Five patients with oligozoospemia and two with azoospermia presented chromosome abnormalities. Nonzoospermic men did not show chromosomal abnormalities. Polymorphisms of heterochromatin and satellite length showed a significant increased in oligozoospermic and azoospermic men with respect to normozoospermic men, respectively. This study reports the prevalence of chromosome abnormalities, polymorphisms of heterochromatin length, and polymorphisms in satellites in Mexican infertile men. The prevalence in this study was similar to other studies in world literature.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Genetics Division, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo Leon, Mexico.
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20
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Dávila-Rodríguez MI, Cortés-Gutiérrez EI, López-Fernández C, Pita M, Mezzanotte R, Gosálvez J. Whole-comparative genomic hybridization in domestic sheep (Ovis aries) breeds. Cytogenet Genome Res 2009; 124:19-26. [PMID: 19372665 DOI: 10.1159/000200084] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2008] [Indexed: 11/19/2022] Open
Abstract
Whole-comparative genomic hybridization (W-CGH) allows identification of chromosomal polymorphisms related to highly repetitive DNA sequences localized in constitutive heterochromatin. Such polymorphisms are detected establishing competition between genomic DNAs in an in situ hybridization environment without subtraction of highly repetitive DNA sequences, when comparing two species from closely related taxa (same species, sub-species, or breeds) or somewhat related taxa. This experimental approach was applied to investigating differences in highly repetitive sequences of three sheep breeds (Castellana, Ojalada, and Assaf). To this end, W-CGH was carried out using mouflon (sheep ancestor) chromosomes as a common target to co-hybridize equimolar quantities of two genomic DNAs obtained from either Castellana, Ojalada or Assaf sheep breeds. The results showed that the amount of constitutive heterochromatin is greater in all pericentromeric heterochromatin regions of acrocentric chromosomes than in metacentric or sex chromosomes. Additionally, when W-CGH was performed using DNAs from the Iberian breeds Castellana and Ojalada, chromosomal pericentromeric regions revealed quantitatively and qualitatively a presence of DNA families similar to that obtained from any of the above-cited breeds. On the contrary, when the DNA used in W-CGH experiments was obtained from Assaf, as compared to either Castellana or Ojalada, two different pericentromeric DNA families of highly repetitive sequences could be detected. Lastly, sex chromosomes were shown to be homogeneous among all breeds and thus revealed no detectable constitutive heterochromatin. W-CGH results were confirmed using DNA breakage detection-FISH experiments (DBD-FISH) carried out on lymphocytes. As a whole, the results showed that two different repetitive DNA families are present in the pericentromeric heterochromatin of the sheep breeds studied here. Additionally, they suggest a differential presence of these distinct repetitive DNA families in Castellana and Ojalada breeds as compared to the Assaf breed. Finally, the results of W-CGH after using mouflon as the targeted chromosomes also show that the two DNA families are present in the ancestor.
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Affiliation(s)
- M I Dávila-Rodríguez
- Department of Genetics, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, México
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21
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Abstract
Infertility affects almost 20% of couples in reproductive age and the male factor being responsible of 50% of this infertility. Among the classic parameters that determine a good seminal quality such as sperm motility, sperm morphology or the quality of the of acrosomes and/or sperm membranes, the integrity of the DNA molecule is crucial to carry out a successful fertilization. Nevertheless, the study of this parameter has not been straightforward approached. This fact has shunned its incorporation, as a routine technique, within a standard seminogram. The aim of the present review is to summarize and update those technologies that are considered more successful to study sperm DNA fragmentation with special emphasis to: 1) the levels of technological complexity and the possibility of its use in laboratories of andrology, according with the equipment and the resources available, and 2) the effects and possible implications of high level of sperm DNA fragmentation for fecundation, embryo development and fertility.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Departamento de Genètica, Centro de Investigación Biomèdica del Noreste, Instituto Mexicano del Seguro Social (IMSS), Monterrey, Nuevo León, México
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22
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Martínez-Pérez LM, Cerda-Flores RM, Gallegos-Cabriales EC, Dávila-Rodríguez MI, Ibarra-Costilla E, Cortés-Gutiérrez EI. Frequency of micronuclei in Mexicans with type 2 diabetes mellitus. Prague Med Rep 2007; 108:248-255. [PMID: 18399062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
A case-control study was carried out on a sample of 15 Mexican patients (40-56 years old) with type 2 diabetes mellitus (DM2) that had developed five years and been treated with oral hypoglycemic drugs (sulfonylurea and/or metformin), with no microvascular or macrovascular complications. The aim of this study was to assess whether Mexican patients with DM2 differed from a control group in the frequency of micronuclei (MN). A control group of 10 individuals without DM2 (38-54 years old) was included. The frequency of MN in binucleated lymphocytes was analyzed according to the Fenech criteria. At time being this investigation should be considered as a preliminary study in which the influence of potential confounders cannot be adequately assessed. However, our result showed a MN frequency significant increase in DM2 patients (6.53 +/- 2.03 per 1000 cells) relative to that of the control group (3.10 +/- 1.79 per 1000 cells). MN may constitute a possible component of a panel of biomarkers for the risk of DM2. This cytogenetic damage also indicates an enhanced risk of cancer, as has been found in previous studies. These results should be validated by other researchers.
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Affiliation(s)
- L M Martínez-Pérez
- División de Genética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
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23
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Cortés-Gutiérrez EI, Leal-Elizondo E, Cerda-Flores RM, Leal-Garza CH. Polymorphism of Ag(+)-NORs in cervical smears from women with cervical cancer. Anal Quant Cytol Histol 2001; 23:9-14. [PMID: 11233747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To evaluate Ag(+)-stained (Ag(+)-NOR) polymorphism in four groups of patients with various grades of cervical lesions and in a control group. STUDY DESIGN Forty-five women were selected, diagnosed and classified on the bases of the Pap smear and colposcopy/biopsy at Hospital de Ginecologia y Obstetricia del Instituto Mexicano del Seguro Social in Monterrey, Mexico. Five categories were considered: (1) inflammatory, (2) low grade squamous intraepithelial lesions (LSILs), (3) high grade squamous intraepithelial lesions (HSILs), (4) invasive cervical cancer, and (5) normal. The cervical smears were stained by the Ag(+)-NOR method. One hundred cells per slide were counted and classified according to the polymorphism of Ag(+)-NOR dots: typical (spherical) and atypical (large, kidney shaped and clustered). The four shapes of Ag(+)-NORs were quantified by percentage and transformed using the arcsine root procedure. RESULTS Statistical analysis showed a significant decrease in spherical shape according to neoplastic development. The three atypical shapes showed a significant increase in patients with HSIL and invasive carcinoma in respect to LSIL. Principal components analysis grouped the data at five locations in the plane formed by the first two principal components according to the diagnosis. CONCLUSION These findings suggest the potential diagnostic and prognostic value of the determination of Ag(+)-NOR polymorphism in cervical cytology studies.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Division of Genetics, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Administración de Correos No. 4, Apartado postal 020-E, E.P. 64720 Monterrey, Mexico.
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Cortés-Gutiérrez EI, Cerda-Flores RM, Leal-Garza CH. Sister chromatid exchanges in peripheral lymphocytes from women with carcinoma of the uterine cervix. Cancer Genet Cytogenet 2000; 122:121-3. [PMID: 11106822 DOI: 10.1016/s0165-4608(00)00286-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Sister chromatid exchanges (SCE) are reciprocal exchanges between sister chromatids. It has been reported that in patients with cervical cancer, the frequency of SCE in peripheral lymphocytes is significantly higher than that in normal individuals; however, other studies have shown no significant difference. The aim of this unmatched case-control study was to compare the mean number of SCE per metaphase in lymphocytes from women with and without carcinoma of the cervix uteri. The SCE specimens were prepared by the fluorescence plus giemsa technique in peripheral lymphocytes from 28 women with carcinoma of cervix uteri and 28 controls. The mean number of SCE per metaphase in women with carcinoma of cervix uteri (7.80 +/- 1.05) was higher than the control group (6.98 +/- 1.13) (P < 0.05; t-test). This study had a statistical power of 0.80 and an alpha value of 0.05. This finding suggests that an increased number of SCE in peripheral lymphocytes is associated with cervical cancer. We consider that the lack of reported association of SCE and cervical cancer might be attributed to the none determination of the statistical power and sample size.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Division de Genética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril y San Luis Potosi, Colonia Independencia, 64720, Monterrey, N.L., Mexico.
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Güitrón-Cantú A, López-Vera E, Forsbach-Sánchez G, Leal-Garza CH, Cortés-Gutiérrez EI, González-Pico I. Gonadal dysgenesis and Rokitansky syndrome. A case report. J Reprod Med 1999; 44:891-3. [PMID: 10554753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
BACKGROUND Primary amenorrhea and lack of sexual development occur in gonadal dysgenesis due to missing ovaries. Primary amenorrhea with sexual development occurs in Rokitansky syndrome due to absence of the uterus, with normal ovarian function. The association of these two conditions has been previously described as a rare event. CASE A 19-year-old woman presented with primary amenorrhea and lack of secondary sexual characteristics. Physical examination confirmed the absence of mammary development and of pubic and axillary hair. Pelvic ultrasound disclosed absence of the uterus and ovaries. Gonadotropin serum levels were in the menopausal range, and the karyotype showed two mosaic cell lines, 45,X/46,Xdic(X). Scanning of a large number of cells by interphase fluorescence in situ hybridization showed 12% of cells with a dicentric X chromosome. Laparoscopic study confirmed the absence of the uterus and ovaries, with normal fallopian tubes. CONCLUSION This patient had two anomalies affecting reproductive performance, gonadal dysgenesis and congenital absence of the uterus, the first associated with an abnormal karyotype; the second seems to have occurred coincidentally. At this time there is no treatment for the reproductive dysfunction.
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Affiliation(s)
- A Güitrón-Cantú
- Department of Endocrinology, Hospital Dr. Ignacio Morones Prieto, Monterrey, N.L., Mexico
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26
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Cortés-Gutiérrez EI, Reyna-Hinojosa R, Silva-Cudish J, Rojas-Alvarado MA, Leal-Garza CH. Activity satellite association and polymorphism of Ag stained nucleolus organizer regions (Ag+ NORs) in lymphocytes from women with cervical uterine cancer. Arch Med Res 1997; 28:19-23. [PMID: 9078582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Thirty five female patients with different stages of neoplastic lesions: cervical intraepithelial neoplasia (CIN) or dysplasia (CIN I and CIN II), in situ carcinoma (CIS), and adenocarcinoma, and 27 healthy women (controls) were studied to determine the activity, satellite association, and polymorphism of Ag stained nucleolus organizer regions (Ag+ NORs) in acrocentric chromosomes in metaphases obtained from peripheral blood lymphocytes. For each person, 25 to 50 metaphases stained with ammoniacal silver technique were scored. The average number of Ag+ NORs was higher in women with adenocarcinoma (7.66 +/- 0.72) than in controls (6.65 +/- 0.74). Non-associated chromosomes showing Ag+ NORs were found more frequently in patients (5.85 +/- 0.88) than in controls (4.81 +/- 0.67). Patients aged 30-39 and 60 or more had an increase of Ag+ NORs (7.99 +/- 1.04, and 7.81 +/- 0.71) with respect to their controls (6.36 +/- 0.052 and 6.17 +/- 0.88), but the frequency of satellite association showed lower values in 50-59 year-old patients (0.75 +/- 0.08) than in controls (1.02 +/- 0.19). The most frequent association in patients was the large type (patients = 38.96%, controls = 30.49%). The partial association showed higher values (6.49%) than controls (2.44%). Otherwise, the spherical association was more frequent for controls (37.80%) than for patients (28.57%). All these differences were statistically significant (p < 0.05). The frequency of Ag+ NORs and the type of polymorphism of satellite association could be related to the neoplastic process, while the frequency of satellite association and of polymorphism of Ag+ NORs seems to be irrelevant.
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Affiliation(s)
- E I Cortés-Gutiérrez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, N.L., México
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Leal-Garza CH, Cortés-Gutiérrez EI, Ortiz-Jalomo R, García-Cavazos R. A case of mosaic Down's syndrome with two Robertsonian translocations. Rev Invest Clin 1996; 48:385-8. [PMID: 8968157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A baby with stigmata of Down's syndrome was found to be a mosaic with two different cell lines: 45,XX,der(14q;21q)/46,XX,der(21q;21q)+21. The chromosome rearrangements appeared to have risen de novo. Four mechanisms are discussed for the origin of the mosaicism: dissociation of a translocation (14q;21q) chromosome already present in the 45,XX, der(14q;21q) zygote; two translocation events occurring sequentially at the first and second zygote (46,XX) divisions; a chromatid translocation in a 47,XX,+21 zygote; and an independent origin of the two cell lines.
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Affiliation(s)
- C H Leal-Garza
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey N.L. México
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Said-Fernández S, Leal-Garza CH, Cortés-Gutiérrez EI, Barrera-Saldaña HA, Sifuentes-Rincón AM, Revol-de Mendoza A, Argüello-García G, Ortega-Pierres MG, Flores-Castañeda MS. [Molecular diagnosis of infectious and parasitic diseases]. GAC MED MEX 1996; 132:295-318. [PMID: 8964365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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