Research Article

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Africanized bees; Apis mellifera; Environmental effects; Mexico; Varroa destructor; Varroa resistance

Honey bee (Apis mellifera) colonies of African and European descent were compared for levels of Varroa destructor infestation in 3 different ecological regions in Mexico. The 300 colonies that were studied were located in subtropical, temperate sub-humid, and temperate dry climates. The morphotype and mitotype of adult bees as well as their rates of infestation by varroa ... more

C.A. Medina-Flores; E. Guzmán-Novoa; M.M. Hamiduzzaman; C.F. Aréchiga-Flores; M.A. López-Carlos
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
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
Alleles; Colorectal neoplasms; Genetic association studies; Genetic predisposition to disease; Genotype; Humans; Mexico; Odds Ratio; Polymorphism, Single Nucleotide; PPAR delta

PPARD encodes for peroxisome proliferator-activated receptor delta, which plays a significant role in controlling lipid metabolism, atherosclerosis, inflammation, cancer growth, progression, and apoptosis. Accumulated evidence suggests that the polymorphism rs2016520 in PPARD is associated with lipid metabolism, obesity, metabolic syndrome, and type 2 diabetes mellitus. The aim of this study ... more

M.A. Rosales-Reynoso; L.I. Wence-Chavez; A.R. Arredondo-Valdez; S. Dumois-Petersen; P. Barros-Núñez; M.P. Gallegos-Arreola; S.E. Flores-Martínez; J. Sánchez-Corona
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
Child; Female; Glycosaminoglycans; Humans; Iduronidase; male; Mexico; Mucopolysaccharidosis I

Mucopolysaccharidosis type I (MPS-I) is an autosomal recessive lysosomal storage disorder caused by a deficiency or absence of α--iduronidase, which is involved in the catabolism of glycosaminoglycans (GAGs). This deficiency leads to the accumulation of GAGs in several organs. Given the wide spectrum of the disease, MPS-I has historically been classified into 3 clinical subtypes - severe ( ... more

A. Alonzo-Rojo; J.E. García-Ortiz; M. Ortiz-Aranda; M.P. Gallegos-Arreola; L.E. Figuera-Villanueva
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
Genetic distance; Genetic diversity; Genetic similarity; Genetic structure; Microsatellite; Siniperca chuatsi

In order to provide genetic information for the selective breeding of Siniperca chuatsi, 14 microsatellite DNA loci were used to evaluate the genetic diversity and structure of four farmed populations and one wild population in China. The four cultivated populations were Foshan (FS), Jiangmen (JM), Nanjing (NJ), and Hongze Lake (HZL), and the wild population was collected from the ... more

C.F. Sun; X. Ye; Y.Y. Tian; J.J. Dong
Genetic diversity; Genetic structure; Lonicera macranthoides; SCoT

Lonicera macranthoides is an important traditional Chinese herb. The lack of information regarding the genetic structure and genetic relationships among its cultivars has hindered the conservation and utilization of this resource. This study used start codon targeted markers to assess the genetic diversity and other genetic characteristics of five single-variety L. macranthoides ... more

D.X. Chen; L.Y. Li; X. Zhang; Y. Wang
Genetic differentiation; Genetic diversity; Genetic structure; Myzus persicae nicotianae; Parthenogenesis

The tobacco aphid, Myzus persicae nicotianae (Hemiptera: Aphididae), is an important agricultural pest that feeds on host plants and transmits plant viruses in China. To effectively control this pest, we investigated the genetic variation and genetic structure of 54 populations of tobacco aphids collected in China, using five microsatellite loci. An average of 7 alleles with effective ... more

C. Zhao; X.M. Yang; S.H. Tang; P.J. Xu; W.J. Bian; X.F. Wang; X.W. Wang; G.W. Ren