Please use this identifier to cite or link to this item:
|Title:||Origin of oligodendrocytes in the subventricular zone of the adult brain|
|Abstract:||Background: CODIS-STRs in Native Mexican groups have rarely been analysed for human identification and anthropological purposes. Aim: To analyse the genetic relationships and population structure among three Native Mexican groups from Mesoamerica. Subjects and methods: 531 unrelated Native individuals from Mexico were PCR-typed for 15 and 9 autosomal STRs (Identifiler® and Profiler® kits, respectively), including five population samples: Purépechas (Mountain, Valley and Lake), Triquis and Yucatec Mayas. Previously published STR data were included in the analyses. Results: Allele frequencies and statistical parameters of forensic importance were estimated by population. The majority of Native groups were not differentiated pairwise, excepting Triquis and Purépechas, which was attributable to their relative geographic and cultural isolation. Although Mayas, Triquis and Purépechas-Mountain presented the highest number of private alleles, suggesting recurrent gene flow, the elevated differentiation of Triquis indicates a different origin of this gene flow. Interestingly, Huastecos and Mayas were not differentiated, which is in agreement with the archaeological hypothesis that Huastecos represent an ancestral Maya group. Interpopulation variability was greater in Natives than in Mestizos, both significant. Conclusion: Although results suggest that European admixture has increased the similarity between Native Mexican groups, the differentiation and inconsistent clustering by language or geography stresses the importance of serial founder effect and/or genetic drift in showing their present genetic relationships. " 2010 Informa UK, Ltd.",,,,,,"10.3109/03014461003743801",,,"http://hdl.handle.net/20.500.12104/43429","http://www.scopus.com/inward/record.url?eid=2-s2.0-77958527932&partnerID=40&md5=26ac2642334bd714216324c0038e7803|
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=med5&AN=20515366",,,,,,"6",,"Annals of Human Biology",,"801
WOS",,,,"Index Medicus;Demography;Ethnic Groups/ge [Genetics];European Continental Ancestry Group/ge [Genetics];Forensic Genetics;Gene Amplification;Gene Flow;Gene Frequency;Genetic Drift;Genetic Markers;Genetic Variation;Genotype;Geography;Haplotypes;Humans;Indians, North American/ge [Genetics];Mexico;Microsatellite Repeats;Molecular Diagnostic Techniques;Polymerase Chain Reaction",,"CODIS; Mexico; Native groups, Mesoamerica; STRs",,,,,,"Origin and genetic differentiation of three Native Mexican groups (Purépechas, Triquis and Mayas): Contribution of CODIS-STRs to the history of human populations of Mesoamerica",,"Article" "44051","123456789/35008",,"Vázquez-García, M., Universidad de Guadalajara, Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción agrícola, Mexico; Velázquez-Monreal, J., Instituto Nacional de Investigaciones Forestales agrícolas y Pecuarias, Campo Experimental Tecomún, Colima, Mexico; Medina-Urrutia, V.M., Universidad de Guadalajara, Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción agrícola, Mexico; Cruz-Vargas, C.D.J., Universidad de Guadalajara, Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción agrícola, Mexico; Sandoval-Salazar, M., Universidad de Guadalajara, Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción agrícola, Mexico; Virgen-Calleros, G., Universidad de Guadalajara, Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Producción agrícola, Mexico; Torres-Morán, J.P., Universidad de Guadalajara, Departamento de Desarrollo Rural Sustentable, Laboratorio de Informética y Estadística, Mexico",,"Vazquez-García, M.
Torres-Moran, J.P.",,"2013",,"Asian citrus psyllid, Diaphorina citri Kuwayama, is the vector of "Huanglongbing" disease. Different insecticides are used to control the vector by a government containment program to prevent dissemination of disease in citrus growing areas in Mexico. Increased selection pressure on field populations can result in resistance to insecticides. The goal of this study was to determine susceptibility baselines in a laboratory strain of Asian citrus psyllid susceptible to 11 insecticides from five toxicological groups and determine diagnostic doses to test in eight populations from Tahiti lime, Citrus latifolia Tan., and Mexican lime, Citrus aurantifolia Swingle, orchards with different patterns of insecticide use. Resistance ratios were calculated in comparison with data from a susceptible strain in a laboratory in Florida. Most calculated LD50 and LD95 values corresponded well with mortalities caused by diagnostic doses. Asian citrus psyllids from Apatzingan, Michoacan were very resistant to imidacloprid, 4265.6-fold; dimethoate, 106.5-fold; chlorpyriphos, 26.5-fold; and slightly to thiamethoxam, 13.8-fold. At Cofradia de Morelos, Colima, resistance to imidacloprid was 25.6-fold. Resistance to imidacloprid (17.5-fold) and thiamethoxam (12.0-fold) was detected at Cerro de Ortega, Colima. Similar resistance was observed at Tepic, Nayarit, to imidacloprid (13.8-fold) and thiamethoxam (19.3-fold). Psyllids at Casimiro Castillo, Jalisco were resistant to chlorpyriphos (20.6-fold). At El Limon, Jalisco, resistance was found only to thiamethoxam (14.2-fold). Results are similar to those found by Tiwari et al. (2011, 2013) in Florida; however, resistance to neonicotinoids and organophosphates was greater in Asian citrus psyllids in Mexico than those in Florida.",,,,,,"10.3958/059.038.0404",,,"http://hdl.handle.net/20.500.12104/42272","http://www.scopus.com/inward/record.url?eid=2-s2.0-84891278159&partnerID=40&md5=23f2f9e119dcc255249fff57dd3dd3a5
BioOne",,,,,,,,,,,,"Insecticide resistance in adult diaphorina citri kuwayama1 from lime orchards in central West Mexico",,"Article" "45209","123456789/35008",,"Menn, B., Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California at San Francisco, San Francisco, CA 94143, United States; García-Verdugo, J.M., University of Valencia, 46010 Valencia, Spain; Yaschine, C., Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California at San Francisco, San Francisco, CA 94143, United States; Gonzalez-Perez, O., Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California at San Francisco, San Francisco, CA 94143, United States, Neuroscience Department, Centro Universitario de la Salud, Universidad de Guadalajara, Jalisco 44340, Mexico; Rowitch, D., Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, United States; Alvarez-Buylla, A., Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California at San Francisco, San Francisco, CA 94143, United States, Department of Neurosurgery and Developmental and Stem Cell Biology Program, University of California at San Francisco, Box 0525, San Francisco, CA 94143, United States",,"Menn, B.
Alvarez-Buylla, A.",,"2006",,"Glial fibrillary acidic protein (GFAP)-positive astrocytes (type B cells) in the subventricular zone (SVZ) generate large numbers of new neurons in the adult brain. SVZ stem cells can also generate oligodendrocytes in vitro, but it is not known whether these adult primary progenitors generate oligodendrocytes in vivo. Myelin repair and oligodendrocyte formation in the adult brain is instead associated with glial-restricted progenitors cells, known as oligodendrocyte progenitor cells (OPCs). Here we show that type B cells also generate a small number of nonmyelinating NG2-positive OPCs and mature myelinating oligodendrocytes. Some type B cells and a small subpopulation of actively dividing type C (transit-amplifying) cells expressed oligodendrocyte lineage transcription factor 2 (Olig2), suggesting that oligodendrocyte differentiation in the SVZ begins early in the lineage. Olig2-positive, polysialylated neural cell adhesion moleculepositive, PDGF receptor ?-positive, and ?-tubulin-negative cells originating in the SVZ migrated into corpus callosum, striatum, and fimbria fornix to differentiate into the NG2-positive nonmyelinating and mature myelinating oligodendrocytes. Furthermore, primary clonal cultures of type B cells gave rise to oligodendrocytes alone or oligodendrocytes and neurons. Importantly, the number of oligodendrocytes derived from type B cells in vivo increased fourfold after a demyelinating lesion in corpus callosum, indicating that SVZ astrocytes participate in myelin repair in the adult brain. Our work identifies SVZ type B cells as progenitors of oligodendrocytes in normal and injured adult brain. Copyright " 2006 Society for Neuroscience.
|Appears in Collections:||Producción científica UdeG|
Files in This Item:
There are no files associated with this item.
Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.