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José A Morales-González, María de Lourdes Sernas-Morales, Ángel Morales-González, Laura Ligía González-López, Eduardo Osiris Madrigal-Santillán, Nancy Vargas-Mendoza, Tomás Alejandro Fregoso-Aguilar, Liliana Anguiano-Robledo, Eduardo Madrigal-Bujaidar, Isela Álvarez-González, Germán Chamorro-Cevallos
AIM: To examine the association between weekend alcohol consumption and the biochemical and histological alterations at two different concentrations of alcohol in both genders in rats. METHODS: Wistar rats weighing 170-200 g were divided into groups as follows: (1) Control groups; and (2) weekend alcohol-consumption group: 2 d/weekly per 12 wk, at two different concentrations: (1) Group of males or females with a consumption of a solution of alcohol at 40%; and (2) group of males or females with a consumption of a solution of alcohol at 5%...
February 27, 2018: World Journal of Hepatology
Francisco Pena-Pereira, Lorena Villar-Blanco, Isela Lavilla, Carlos Bendicho
A rapid, simple and affordable method for arsenic speciation analysis is described in this work. The proposed methodology involves in situ arsine generation, transfer of the volatile to the headspace and its reaction with silver nitrate at the detection zone of a paper-based analytical device (PAD). Thus, silver nitrate acts as a recognition element for arsine in the paper-based sensor. The chemical reaction between the recognition element and the analyte derivative results in the formation of a colored product which can be detected by scanning the detection zone and data treatment with an image processing and analysis program...
June 29, 2018: Analytica Chimica Acta
Thelma Beatriz González-Castro, Carlos Alfonso Tovilla-Zárate, Isela Esther Juárez-Rojop, Yazmín Hernández-Díaz, María Lilia López-Narváez, Candelario Rodríguez-Pérez, Yahaira Karina González-Hernández, Miguel Ángel Ramos-Méndez
AIM: Investigate the correlation between paraoxonase 2 (PON2) Ser311Cys polymorphism as well as the peroxisome proliferator-activated receptor gamma (PPARG) His477His polymorphism and the susceptibility to development of coronary heart diseases (CHD) through a meta-analysis. METHODS: Odds ratio and the corresponding 95% CI were used to assess the results. We included 7476 CHD patients and 8504 healthy controls. All the statistical analyses were performed by Comprehensive Meta-Analysis software (CMA, version 2...
February 14, 2018: Biomarkers in Medicine
Ulises De la Cruz-Mosso, Trinidad García-Iglesias, Richard Bucala, Iris Estrada-García, Laura González-López, Sergio Cerpa-Cruz, Isela Parra-Rojas, Jorge Iván Gámez-Nava, Edsaúl Emilio Pérez-Guerrero, José Francisco Muñoz-Valle
Macrophage migration Inhibitory Factor (MIF) is a cytokine associated with the pathogenesis of autoimmune inflammatory diseases. There is evidence that MIF functions in a positive-feedback-loop with proinflammatory cytokines and could perpetuate the inflammatory process in Systemic Lupus Erythematosus (SLE).The aim of this study was to assess the effect of recombinant-human-MIF (rhMIF) on the expression of Th1, Th2 and Th17 cytokines in Peripheral Blood Mononuclear Cells (PBMC) from Healthy Subjects (HS) and SLE patients...
December 26, 2017: Cellular Immunology
José Melesio Cristóbal-Luna, Isela Álvarez-González, Eduardo Madrigal-Bujaidar, Germán Chamorro-Cevallos
Grapefruit (Citrus paradisi Mcfad) is a perenifolium tree 5-6 m high with a fruit of about 15 cm in diameter, protected by the peel we can find about 11-14 segments (carpels), each of which is surrounded by a membrane and each containing the juice sacs, as well as the seeds. The fruit is made up of numerous compounds, and is known to have nutritive value because of the presence of various vitamins and minerals, among other chemicals. The fruit is also used in the field of gastronomy. Information has been accumulated regarding the participation of the fruit structures in a variety of biomedical, antigenotoxic and chemopreventive effects, surely related with the presence of the numerous chemicals that have been determined to constitute the fruit...
December 25, 2017: Food and Chemical Toxicology
Marco Antonio Ramirez-Vargas, Eugenia Flores-Alfaro, Mayrut Uriostegui-Acosta, Patricia Alvarez-Fitz, Isela Parra-Rojas, Ma Elena Moreno-Godinez
Exposure to malathion (an organophosphate pesticide widely used around the world) has been associated with alterations in blood glucose concentration in animal models. However, the results are inconsistent. The aim of this meta-analysis was to evaluate whether malathion exposure can disturb the concentrations of blood glucose in exposed rats. We performed a literature search of online databases including PubMed, EBSCO, and Google Scholar and reviewed original articles that analyzed the relation between malathion exposure and glucose levels in animal models...
December 12, 2017: Environmental Science and Pollution Research International
Isela Martínez-Reza, Lorenza Díaz, Rocío García-Becerra
Breast cancer is the most common malignancy in women and a public health problem worldwide. Breast cancer is often accompanied by an inflammatory process characterized by the presence of proinflammatory cytokines such as tumor necrosis factor (TNF-α), which has important implications in the course of the disease. Inflammation has been described primarily as a favorable environment for tumor development. However, under certain conditions TNF-α can promote signals for activation, differentiation, survival or cell death, so the study of the variants of this cytokine, its receptors, the presence of polymorphisms and its implication in different phenotypes of breast cancer is necessary...
December 4, 2017: Journal of Biomedical Science
José Antonio de Jesús Batún-Garrido, Marisol Salas-Magaña, Isela Esther Juárez-Rojop, Eúfrates Hernández-Núñez, Francisco Olán
BACKGROUND AND OBJECTIVE: Multiple studies have found a direct relationship between leptin concentrations and disease activity in rheumatoid arthritis. PATIENTS AND METHODS: We studied 77 patients with the diagnosis of rheumatoid arthritis; the leptin determination was through an enzyme immunoassay. Disease activity was assessed by the DAS-28 CRP. A multivariate logistic regression model was used to determine the association between significant variables and leptin concentrations...
November 26, 2017: Medicina Clínica
José Antonio De Jesús Batún-Garrido, Marisol Salas-Magaña, Isela Esther Juárez-Rojop
Pro-inflammatory cytokines such as leptin and IL-6 play an important role in the development of cardiovascular risk. Determine the relationship between leptin and IL-6 concentrations with cardiovascular risk in patients with rheumatoid arthritis. We determined IL-6 and leptin levels in 77 patients with the diagnosis of rheumatoid arthritis. The cardiovascular risk was calculated using the modified Framingham scale. Statistical analysis was performed using SPSS 22 considering a significant p < 0.05. Serum leptin concentrations and cardiovascular risk (CVR) factors were compared and found that there was a significant difference between higher leptin values and disease activity (p 0...
November 3, 2017: Clinical Rheumatology
Isela García-Gudiño, Eucario Yllescas-Medrano, Rolando Maida-Claros, Diana Soriano-Becerril, Nestor F Díaz, Guadalupe García-López, Anayansí Molina-Hernández, Oscar Flores-Herrera, Francisco J Zavala-Díaz de la Serna, María Del Rosario Peralta-Pérez, Héctor Flores-Herrera
It is estimated that 15% of all newborns admitted to the neonatal intensive care unit (NICU) for suspected sepsis receive multiple broad-spectrum antibiotics without pathogen identification. The gold standard for bacterial sepsis detection is blood culture, but the sensitivity of this method is very low. Recently, amplification and analysis of the 16S ribosomal DNA (rDNA) bacterial gene in combination with denaturing gradient gel electrophoresis (DGGE) has proven to be a useful approach for identifying bacteria that are difficult to isolate by standard culture methods...
October 31, 2017: European Journal of Pediatrics
Thelma B González-Castro, Yazmín Hernandez-Diaz, Isela E Juárez-Rojop, Lilia López-Narváez, Carlos A Tovilla-Zárate, José M Rodriguez-Perez, Juan P Sánchez-de la Cruz
The polymorphisms of the serotonin receptor 2C (HTR2C) gene have been proposed to influence suicidal behavior. The aim of our study was to explore the role of the HTR2C gene variant Cys23Ser (rs6318) in the pathogenesis of suicidal behavior through a systematic review and meta-analysis. The search was performed using EBSCO and PubMed databases. To be included in the analysis, the studies had to evaluate suicidal behavior (attempted, ideation, or completed suicide). The results of the meta-analysis were expressed as odds ratios (ORs)...
December 2017: Psychiatric Genetics
Pedro I Arias Vázquez, Rosa G Castillo Avila, Mayra Del C Dominguez Zentella, Yazmín Hernández-Díaz, Thelma B González-Castro, Carlos A Tovilla-Zárate, Isela E Juárez-Rojop, María L López-Narváez, Ana Frésan
Most patients undergoing limb amputations suffer significant emotional changes. The aim of this study was to estimate the prevalence of suicide attempts and depression in a sample of Mexican patients with limb amputations and, second, to determine whether the patients' functionality correlates with the presence of depression. We studied 40 patients who had undergone a limb amputation. The suicide attempt was evaluated using the Suicide Intent Scale. The depression was assessed using the Hamilton Depression Rating Scale, whereas the functionality of the patients was measured using the Functional Independence Measure...
October 13, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
Thelma Beatriz González-Castro, Carlos Alfonso Tovilla-Zárate, Yazmín Hernández-Díaz, Isela E Juárez-Rojop, Alejandra Giovanna León-Garibay, Crystell Guadalupe Guzmán-Priego, Lilia López-Narváez, Ana Frésan
OBJECTIVE: In recent years, suicide in children and adolescents has increased considerably, becoming the second cause of death in this age group. Therefore, the aim of this study was to identify characteristics and factors that could precipitate deaths by suicide in children and adolescents. METHODS: Using the psychological autopsy method, we studied 28 suicide cases of children and adolescents between 10 and 17 years old. Socio-demographic factors, characteristics of the suicide and family history were documented...
October 13, 2017: Journal of Forensic and Legal Medicine
Daniela Georgina Aguilar-Velázquez, Thelma Beatriz González-Castro, Carlos Alfonso Tovilla-Zárate, Isela E Juárez-Rojop, Maria Lilia López-Narváez, Ana Frésan, Yazmin Hernández-Díaz, Crystell Guadalupe Guzmán-Priego
Suicide is the second cause of death in youth population. The aim of the present study was to analyze demographic characteristics and suicide methods used, as well as to identify gender differences among Mexican children and adolescents (aged 10-17 years) that committed suicide. Between January 2003 and December 2013, 167 suicides of children and adolescents between 10 and 17 years of age were documented by the Secretary of Health of the state of Tabasco, Mexico. All sociodemographic characteristics were compared according to gender...
December 2017: Psychiatry Research
Isela D Howlett, Wanglei Han, Photini Rice, Jennifer K Barton, Raymond K Kostuk
A wavelength-coded volume holographic imaging (WC-VHI) endoscope system capable of simultaneous multifocal imaging is presented. The system images light from two depths separated by 100  μm in a tissue sample by using axial chromatic dispersion of a gradient index probe in combination with two light-emitting diode sources and a multiplexed volume hologram to separate the images. This system is different from previous VHI systems in that it uses planar multiplexed gratings and does not require curved holographic gratings...
October 2017: Journal of Biomedical Optics
Fatima L Gandarilla-Pacheco, Lilia H Morales-Ramos, Benito Pereyra-Alférez, Myriam Elías-Santos, Isela Quintero-Zapata
The aim of this study was to evaluate the production of blastospores and conidia of different native isolates and a strain of Isaria fumosorosea using different propagation techniques. Two liquid culture media of casamino acids and peptone as nitrogen sources and glucose as carbon source for both media cultures were respectively used in the production of blastospores, while for the production of conidia, the fungi were grown in potato dextrose agar; from these cultures, solutions of conidia to a concentration of 1×10(6) per milliliter were prepared to inoculate flasks with Sabouraud dextrose broth for the liquid phase of the biphasic culture, also known as preculture...
September 26, 2017: Revista Argentina de Microbiología
Eduardo Madrigal-Bujaidar, Isela Álvarez-González, Eduardo Osiris Madrigal-Santillán, José A Morales-González, Andrea Torres-Gómez, José Melesio Cristóbal-Luna
Duloxetine is an antidepressant which has showed valuable results, particularly in patients with major depression. This type of drugs is known to require genotoxic studies as part of their preclinical safety evaluation. In the case of duloxetine, however, there have been controversial results. Therefore, we considered it worthwhile to extend studies on the matter in an attempt to reach a conclusion. The present assay was made in mouse bone marrow to evaluate the capacity of the drug to induce sister chromatid exchanges (SCE), as well as to modify the proliferation kinetics and the mitotic index...
2017: Biological & Pharmaceutical Bulletin
Nikte Y Martínez-Palma, Gloria Dávila-Ortiz, Cristian Jiménez-Martínez, Eduardo Madrigal-Bujaidar, Isela Álvarez-González
BACKGROUND: Spirulina maxima (Sm) is known to have nutritive value as well as a number of potentially useful biomedical properties. OBJECTIVES: The initial purpose of this report was to evaluate the inhibitory effect of the alga (without its polyphenol content), on the induction of azoxymethane (AOM)-induced colon aberrant crypts (AC) in mouse. Besides, we hydrolyzed the protein content of such mixture. Our second aim was to determine the inhibitory potential of this last plant mixture on the AOM-induced colon AC in mouse...
July 2017: Pharmacognosy Magazine
Francisco J Choix, Elena Polster, Rosa Isela Corona-González, Raúl Snell-Castro, Hugo O Méndez-Acosta
Microalgae are considered as a promising biotechnological strategy to capture CO2 from biogas, producing biomass with valuable energetic compounds. This study has evaluated the biotechnological potential to fix CO2 from biogas and biomass production by Scenedesmus obliquus cultured in four different formulations of culture media, C30, Bristol, Bold 3N, and C30+M, as well as the effect of methane (CH4) of biogas during CO2 fixation and biomass production. The results obtained showed that different nutrient composition and concentration of culture media, mainly micronutrient and vitamin concentrations, induced different patterns of CO2 fixation from biogas and biomass production in S...
December 2017: Bioprocess and Biosystems Engineering
C I Granada-Moreno, A Aburto-Medina, D de Los Cobos Vasconcelos, A González-Sánchez
AIMS: To achieve the functional specialization of a microalgae community through operational tuning of an open photobioreactor used for biogas upgrading under alkaline conditions. METHODS AND RESULTS: An open photobioreactor was inoculated with an indigenous microalgae sample from the Texcoco Soda Lake. A microalgae community was adapted to fix CO2 from synthetic biogas through different culture conditions reaching a maximum of 220 mg CO2  l(-1) per day. Picochlorum sp...
August 3, 2017: Journal of Applied Microbiology
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