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|Title:||Explaining undocumented migration to the U.S.|
|Author:||De Celis, R.|
|Abstract:||The expression of NK cells activation receptors was assessed by comparative study of two groups of women workers at a chemical reagents factory, located in Zapopan, Jalisco, Mexico. Twenty of them were exposed to environmental toxics identified and quantified by gas chromatography, and 20 women unexposed to toxic substances. The expression of the surface markers CD56+ and CD3+, and of the activation receptors and co-receptors on NK cells was quantified by flow cytometry. To assess the cellular damage produced by chronic exposure to the toxics, the thiobarbituric acid reacting substances (TBARS) generated and the total plasma antioxidizing capacity (TPAC) were quantified in both groups. The exposed women had been exposed at least to 12 volatile toxic compounds, benzene, benz(a)pyrene, ethylbenzene, dimethylbenz(a)anthracene, xylene, toluene, styrene, chloroform, formaldehyde, iodine, chlorine and fluorine. Significant difference between the two groups was in the proportion of CD3 lymphocytes, 72.7 10.3% in the unexposed women versus 66.8 7.9% in the exposed group (p < 0.05). The density of expression of NKG2D and NKp30 receptors was significantly higher in the unexposed women compared to the exposed group: NKG2D were 31.3 6.3 and NKp30 were 9.5 5.2 in the unexposed women and 5.14 2.9 (p < 0.01) and 4.6 1.9 (p < 0.05), respectively in the exposed women. No statistically significant differences were found in the expression of NKp80, NKp46 and 2B4 receptors. The concentration of TBARS was lower in women from the unexposed group than the corresponding data from women of the exposed group. However, no significant difference was observed in TPAC between the two groups studied. The results of this preliminary study suggest that from the five activation receptors and co-receptors of NK cells evaluated (NKp30, NKp46, NKp80, NKG2D and 2B4), only NKp30 and NKG2D receptor expression was diminished in women exposed to toxics when compared with data from unexposed women. These results suggest that the occupational exposure to mixture of toxics is one of the important factors in the diminution of the NK cell receptor expression. " 2008 Elsevier B.V. All rights reserved.",,,,,,"10.1016/j.imlet.2008.03.010",,,"http://hdl.handle.net/20.500.12104/41410","http://www.scopus.com/inward/record.url?eid=2-s2.0-44649194964&partnerID=40&md5=9d9fa2c1197abdee0e79a6227be8b458",,,,,,"2",,"Immunology Letters",,"125|
WOS",,,,,,"Activation receptors; Immune response; NK cells; Occupational exposure",,,,,,"Expression of NK cells activation receptors after occupational exposure to toxics. A preliminary study",,"Article" "43184","123456789/35008",,"Ramos-Marquez, M.E., Dept. of Molec. Biology in Medicine, CUCS, Univ. de Guadalajara/Hospital Civil, AP 2-500 SH, Guadalajara, Jal. CP 44280, Mexico; Mendoza-Figueroa, T., Dept. of Molec. Biology in Medicine, CUCS, Univ. de Guadalajara/Hospital Civil, AP 2-500 SH, Guadalajara, Jal. CP 44280, Mexico; Contreras, J.L., Dept. of Molec. Biology in Medicine, CUCS, Univ. de Guadalajara/Hospital Civil, AP 2-500 SH, Guadalajara, Jal. CP 44280, Mexico; Diliz, H., Dept. of Molec. Biology in Medicine, CUCS, Univ. de Guadalajara/Hospital Civil, AP 2-500 SH, Guadalajara, Jal. CP 44280, Mexico; Panduro, A., Dept. of Molec. Biology in Medicine, CUCS, Univ. de Guadalajara/Hospital Civil, AP 2-500 SH, Guadalajara, Jal. CP 44280, Mexico
Panduro-Cerda, Arturo., Universidad de Guadalajara. Centro Universitario de Ciencias de la Salud",,"Ramos-Marquez, M.E.
Panduro-Cerda, Arturo",,"1995",,"[No abstract available]",,,,,,,,,"http://hdl.handle.net/20.500.12104/41405","http://www.scopus.com/inward/record.url?eid=2-s2.0-0028804457&partnerID=40&md5=73fac262096a1e83f26d35f3cf5ad863
WOS",,,,"Index Medicus;Adenosine;Allopurinol;Animals;Apolipoprotein A-I/bi [Biosynthesis];Apolipoproteins E/bi [Biosynthesis];Blotting, Northern;Cell Survival;Gene Expression;Glutathione;Hot Temperature;Insulin;Liver/cy [Cytology];Liver/me [Metabolism];Male;Organ Preservation Solutions;RNA, Messenger/an [Analysis];RNA, Messenger/bi [Biosynthesis];Raffinose;Rats;Rats, Wistar;Time Factors;Tissue Preservation/mt [Methods]",,,,,,,,"Expression of apolipoproteins A-1 and E in isolated hepatocytes preserved with the University of Wisconsin solution",,"Conference Paper" "43178","123456789/35008",,"Massey, D.S., Princeton University, United States; Durand, J., University of Guadalajara, Mexico; Pren, K.A., Centro de Investigación y Docencia Económicas, Mexico",,"Massey, D.S.
Pren, K.A.",,"2014",,"Using data from the Mexican Migration Project and the Latin American Migration Project, we find that undocumented migration from Mexico reflects U.S. labor demand and access to migrant networks and is little affected by border enforcement, which instead sharply reduces the odds of return movement. Undocumented migration from Central America follows primarily from political violence associated with the U.S. intervention of the 1980s, and return migration has always been unlikely. Mass undocumented migration from Mexico appears to have ended because of demographic changes there, but undocumented migration from Central America can be expected to grow slowly through processes of family reunification. " 2014 by the Center for Migration Studies of New York. All rights reserved.
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