Research Article

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3/15/2017
Adolescent; Adult; Aged; Aged, 80 and over; Asian Continental Ancestry Group; Child; Child, Preschool; China; Duffy Blood-Group System; Female; Gene frequency; Genotype; Humans; Infant; Kell Blood-Group System; male; Middle Aged; MNSs Blood-Group System; Young Adult

Human blood groups are a significant resource for patients, leading to a fierce international competition in the screening of rare blood groups. Some rare blood group screening programs have been implemented in western countries and Japan, but not particularly in China. Recently, the genetic background of ABO and Rh blood groups for different ethnic groups or regions in China has been focused ... more

G.Y. Lin; X.L. Du; J.J. Shan; Y.N. Zhang; Y.Q. Zhang; Q.H. Wang
4/28/2017
Adolescent; Blood glucose; Case-control studies; Child; Female; Ghrelin; Humans; Insulin resistance; Lipoproteins; male; Obesity; Triglycerides

Childhood obesity is a serious public health concern condition, as excess body fat can negatively affect a child's health. Obestatin is a hormone that regulates body weight by suppressing appetite and reducing food intake; fasting obestatin level is negatively correlated with basal insulin level. This study aims to investigate the role of obestatin in insulin resistance. A total of 54 children ... more

M.Y. Zhang; F. Li; J.P. Wang
5/18/2017
Adolescent; Case-control studies; Child; Child, Preschool; Drug Resistant Epilepsy; Epilepsies, Myoclonic; Female; Humans; Infant; male; Mutation, Missense; NAV1.1 Voltage-Gated Sodium Channel; Polymorphism, Single Nucleotide

Mutations in the SCN1A gene can result in syndromes associated with epilepsy, including the Dravet syndrome (DS). However, the prevalence of such mutations in these diseases varies widely between different studies, and has not been examined in Mexican patients with epilepsy. Therefore, the objective of this study was to determine the frequency of SCN1A mutations (in the exon 26) in a cohort of ... more

R.E. Jiménez-Arredondo; A.J.L. Brambila-Tapia; F.M. Mercado-Silva; M.T. Magaña-Torres; L.E. Figuera
6/29/2017
Adolescent; Adult; Anemia, Sickle Cell; Child; Child, Preschool; Female; Gene Deletion; Haplotypes; Hemoglobins; Humans; male; Middle Aged; Polymorphism, Genetic; Receptors, CCR5

Sickle cell disease shows several clinical manifestations in distinct levels of severity. This heterogeneity is due to the haplotype variability associated with the HbS gene, levels of fetal hemoglobin and environmental conditions, which modify the disease expression. Science community believes that the presence of a polymorphism in the CCR5 gene, which is related to chronic inflammatory state ... more

A.F. Nascimento; J.S. Oliveira; J.C.Silva Junior; A.A.L. Barbosa
8/17/2017
Adolescent; Adult; Case-control studies; Child; Child, Preschool; Down syndrome; Female; Humans; Infant; Interleukin-6; male; Polymorphism, Single Nucleotide

Down syndrome (DS) individuals present impaired adaptive immune system. However, the etiology of the immunological deficiency in these individuals is not completely understood. This study investigated the frequency of interleukin 6 polymorphisms (rs1800795, rs1800796, and rs1800797) in individuals with DS and individuals without the syndrome. The study included 282 individuals, 94 with DS ... more

M.F. Mattos; L. Uback; P.M. Biselli-Chicote; J.M. Biselli; E.M. Goloni-Bertollo; E.C. Pavarino
12/19/2016
Adult; Arthritis, Rheumatoid; Female; Genetic predisposition to disease; Hand; Hand Injuries; Humans; Interleukin-6; male; Mexico; Middle Aged; Polymorphism, Single Nucleotide

Several interleukin 6 gene (IL6) polymorphisms are implicated in susceptibility to rheumatoid arthritis (RA). It has not yet been established with certainty if these polymorphisms are associated with the severe radiographic damage observed in some RA patients, particularly those with the development of joint bone ankylosis (JBA). The objective of the present study was to evaluate the ... more

S.A. Zavaleta-Muñiz; L. Gonzalez-Lopez; J.D. Murillo-Vazquez; A.M. Saldaña-Cruz; M.L. Vazquez-Villegas; B.T. Martín-Márquez; J.C. Vasquez-Jimenez; F. Sandoval-Garcia; A.J. Ruiz-Padilla; N.S. Fajardo-Robledo; J.M. Ponce-Guarneros; A.D. Rocha-Muñoz; M.F. Alcaraz-Lopez; D. Cardona-Müller; S.E. Totsuka-Sutto; E.D. Rubio-Arellano; J.I. Gamez-Nava
5/18/2017
Adult; Arsenic; Arsenic Poisoning; Case-control studies; DNA Breaks, Double-Stranded; DNA Breaks, Single-Stranded; Drinking Water; Female; Humans; male; Mexico

Different studies have suggested an association between arsenic (As) exposure and damage to single-stranded DNA by reactive oxygen species derived from the biotransformation of arsenic. The single strand damages are converted to double strand damage upon interaction with ultraviolet radiation. Analysis of genomic integrity is important for assessing the genotoxicity caused by environmental ... more

J. Jiménez-Villarreal; D.I. Rivas-Armendáriz; C.P. Pineda-Belmontes; N.D. Betancourt-Martínez; M.A. Macías-Corral; A.J. Guerra-Alanis; M.S. Niño-Castañeda; J. Morán-Martínez
9/27/2017
Acute coronary syndrome; Aged; Case-control studies; Female; Genotype; Heterozygote; Humans; male; Mexico; Middle Aged; Peptidyl-Dipeptidase A; Polymorphism, Single Nucleotide

Acute coronary syndrome (ACS) is considered one of the main causes of death worldwide. Contradictory findings concerning the impact of the angiotensin-converting enzyme (ACE) gene on cardiovascular diseases have been reported. Previous conclusions point out that the variability in results depends on ethnicity and genetic polymorphisms to determine the association of rs4340 polymorphisms of the ... more

A. Valdez-Haro; Y. Valle; E. Valdes-Alvarado; F. Casillas-Muñoz; J.F. Muñoz-Valle; G.L. Reynoso-Villalpando; H.E. Flores-Salinas; J.R. Padilla-Gutiérrez
12/02/2016
Asian Continental Ancestry Group; Child; Chromosome Deletion; Chromosomes, Human, Pair 2; Fingers; Heart Defects, Congenital; Hedgehog Proteins; Humans; Karyotype; male; Syndactyly; Waardenburg Syndrome

Reports of terminal and interstitial deletions of the long arm of chromosome 2 are rare in the literature. Here, we present a case report concerning a Chinese boy with a 47,XYY karyotype and a de novo deletion comprising approximately 5 Mb between 2q35 and q36.1, along with syndactyly, type III Waardenburg syndrome, and congenital heart disease. High-resolution chromosome analysis to detect ... more

D. Wang; G.F. Ren; H.Z. Zhang; C.Y. Yi; Z.J. Peng
12/02/2016
Administration, Oral; Animals; Bone marrow cells; Cell proliferation; Cells, Cultured; Guatemala; Humans; Lymphocytes; male; Mexico; Micronucleus tests; Mutagenicity Tests; Plant Extracts; Rats; Rubus; Sister chromatid exchange; Toxicity Tests, Subchronic

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 ... more

S. González-Hernández; D. González-Ramírez; M.I. Dávila-Rodríguez; A. Jimenez-Arellanez; M. Meckes-Fischer; S. Said-Fernández; E.I. Cortés-Gutiérrez

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