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https://www.readbyqxmd.com/read/28515782/ecotypic-differentiation-under-farmers-selection-molecular-insights-into-the-domestication-of-pachyrhizus-rich-ex-dc-fabaceae-in-the-peruvian-andes
#1
Marc Delêtre, Beatriz Soengas, Prem Jai Vidaurre, Rosa Isela Meneses, Octavio Delgado Vásquez, Isabel Oré Balbín, Monica Santayana, Bettina Heider, Marten Sørensen
Understanding the distribution of crop genetic diversity in relation to environmental factors can give insights into the eco-evolutionary processes involved in plant domestication. Yam beans (Pachyrhizus Rich. ex DC.) are leguminous crops native to South and Central America that are grown for their tuberous roots but are seed-propagated. Using a landscape genetic approach, we examined correlations between environmental factors and phylogeographic patterns of genetic diversity in Pachyrhizus landrace populations...
June 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28512247/targetable-t-type-calcium-channels-drive-glioblastoma
#2
Ying Zhang, Nichola Cruickshanks, Fang Yuan, Baomin Wang, Mary Pahuski, Julia Wulfkuhle, Isela Gallagher, Alexander F Koeppel, Sarah Hatef, Christopher Papanicolas, Jeongwu Lee, Eli E Bar, David Schiff, Stephen Turner, Emanuel F Petricoin, Lloyd S Gray, Roger Abounader
Glioblastoma stem-like cells (GSC) promote tumor initiation, progression and therapeutic resistance. Here we show how GSC can be targeted by the FDA approved drug mibefradil which inhibits the T-type calcium channel Cav3.2. This calcium channel was highly expressed in human GBM specimens and enriched in GSC. Analyses of the TCGA and REMBRANDT databases confirmed upregulation of Cav3.2 in a subset of tumors and showed that overexpression associated with worse prognosis. Mibefradil treatment or RNAi-mediated attenuation of Cav3...
May 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28501219/headspace-single-drop-microextraction-coupled-with-microvolume-fluorospectrometry-for-highly-sensitive-determination-of-bromide
#3
Adrián García-Figueroa, Francisco Pena-Pereira, Isela Lavilla, Carlos Bendicho
This work reports on the development of a novel methodology for bromide determination by combining headspace single-drop microextraction with microvolume fluorospectrometry. The method lies in the in situ generation of bromine, transfer of the volatile to the headspace and trapping/reaction onto a fluorescein-containing aqueous drop exposed to the gas phase. The decrease in the fluorescence intensity enabled the determination of bromide without dilution of the enriched microdrop. Experimental parameters influencing the performance of the method, namely, fluorescence parameters, extractant phase composition, bromine generation conditions and microextraction time, were evaluated and controlled...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28480389/evaluation-of-the-anti-inflammatory-capacity-of-beta-sitosterol-in-rodent-assays
#4
Rogelio Paniagua-Pérez, Gabriela Flores-Mondragón, Celia Reyes-Legorreta, Brígida Herrera-López, Isabel Cervantes-Hernández, Osiris Madrigal-Santillán, José Antonio Morales-González, Isela Álvarez-González, Eduardo Madrigal-Bujaidar
BACKGROUND: Beta-sitosterol (BS) is a compound discovered to be present in numerous plants. A number of interesting biomedical properties have been attributed to BS, including immuno-modulating and anti-inflammatory activities. Therefore, the aim of this report was to evaluate its anti-inflammatory capacity by applying various rodent experimental tests. METHODS: To carry out the objective of the study we applied the methods indicated here. Two of the adopted methods were based on the passive reverse Arthus reaction: the rat paw edema test and the rat pleurisy assay...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28468774/synergy-between-androgen-receptor-antagonism-and-inhibition-of-mtor-and-her2-in-breast-cancer
#5
Michael A Gordon, Nicholas C D'Amato, Haihua Gu, Beatrice Babbs, Julia D Wulfkuhle, Emanuel F Petricoin, Isela Gallagher, Ting Dong, Kathleen Torkko, Bolin Liu, Anthony Elias, Jennifer K Richer
The androgen receptor (AR) is widely expressed in breast cancer (BC) and evidence suggests dependence on AR signaling for growth and survival. AR antagonists such as enzalutamide and seviteronel have shown success in pre-clinical models and clinical trials of prostate cancer, and are currently being evaluated in BC. Reciprocal regulation between AR and the HER2/PI3K/mTOR pathway may contribute to resistance to HER2- and mTOR-targeted therapies; thus, dual inhibition of these pathways may synergistically inhibit BC growth...
May 3, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28446508/enrichment-of-pik3-akt-mtor-pathway-activation-in-hepatic-metastases-from-breast-cancer
#6
Mariaelena Pierobon, Corrine Ramos, Shukmei Wong, K Alex Hodge, Jessica Aldrich, Sara A Byron, Stephen P Anthony, Nicholas J Robert, Donald W Northfelt, Mohammad Jahanzeb, Linda Vocila, Julia D Wulfkuhle, Guido Gambara, Rosa Isela Gallagher, Bryant Dunetz, Nicholas Hoke, Ting Dong, David W Craig, Massimo Cristofanilli, Brian Leyland Jones, Lance Liotta, Joyce A O'Shaughnessy, John D Carpten, Emanuel F Petricoin
Purpose: Little is known about the molecular signatures associated with specific metastatic sites in breast cancer. Using comprehensive multi-omic molecular profiling, we assessed whether alterations or activation of the PI3K-AKT-mTOR pathway is associated with specific sites of breast cancer metastasis. <p>Experimental Design: NGS-based whole exome sequencing was coupled with Reverse Phase Protein Microarray (RPPA) functional signaling network analysis to explore the PI3K-AKT-mTOR axis in 32 pretreated breast cancer metastases...
April 26, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28440983/-detection-of-cardiovascular-risk-in-healthcare-workers-on-the-basis-of-who-jnc-7-atp-iii-criteria
#7
Roma Rubí Rodríguez-Reyes, José Eduardo Navarro-Zarza, Tania Leticia Tello-Divicino, Isela Parra-Rojas, Oscar Zaragoza-García, Iris Paola Guzmán-Guzmán
BACKGROUND: Anthropometric and blood pressure measurements are significant parameters in the assessment of cardiovascular risk (CVR). The aim was to establish the distribution of clinical-anthropometric parameters in health care workers according to the criteria established by WHO/JNC 7/ATP III. METHODS: Observational, cross-sectional study in 350 workers of a general hospital. Definitions of anthropometric alterations were made considering the criteria established by WHO and the Asian ATP III, while altered blood pressure was defined by criteria JNC 7 and ATP III...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28429893/significant-associations-between-c-reactive-protein-levels-body-adiposity-distribution-and-peripheral-blood-cells-in-school-age-children
#8
Aralia Berenice Salgado-Bernabé, Luz Elena Ramos-Arellanol, Iris Paola Guzmán-Guzmán, José Francisco Muñoz-Valle, Natividad Castro-Alarcón, Amalia Vences-Velázquez, Lorenzo Salga-do-Goytia, Isela Parra-Rojas
Obesity is associated with a state of chronic low-grade inflammation. Ge- nerally, there are significant correlations between body mass index and increased C-reactive protein levels. We investigated the relationship of high sensitivity C-reactive protein (hsCRP) levels with body adiposity distribution and blood cell count in obese children. A cross-sec- tional study was performed in 225 Mexican children. In the study were included 106 obese and 119 normal-weight children, aged 6-13 years old. The body composition was evaluated by BMI, body circumferences and skinfold thickness...
June 2016: Investigación Clínica
https://www.readbyqxmd.com/read/28420830/antimicrobial-and-antibiofilm-activities-of-mta-supplemented-with-bismuth-lipophilic-nanoparticles
#9
Rene Hernandez-Delgadillo, Casiano Del Angel-Mosqueda, Juan Manuel Solís-Soto, Silvia Munguia-Moreno, Nayely Pineda-Aguilar, Rosa Isela Sánchez-Nájera, Shankararaman Chellam, Claudio Cabral-Romero
The objective of this work was to determine the antimicrobial and antibiofilm properties of mineral trioxide aggregate (MTA) supplemented with bismuth lipophilic nanoparticles (BisBAL NPs). The antimicrobial activity of the composite MTA-BisBAL NPs was determined by the disk diffusion assay, while antibiofilm activity was analyzed by fluorescence microscopy. The cytotoxicity of MTA-BisBAL NPs was determined on human gingival fibroblasts by optical microscopy and crystal violet staining. MTA-BisBAL NPs inhibited the growth of Enterococcus faecalis, Escherichia coli, and Candida albicans and also detached the biofilm of fluorescent E...
April 18, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28384984/management-of-traumatic-fibroma-in-a-patient-with-cerebral-palsy-using-810nm-diode-laser
#10
Raúl Vicente Perales-Garza, Gerardo Daniel Sierra-Garcia, Rosa Isela Sánchez Nájera, áRaúl Vicente Perales-Perez
There are several treatment options for hyperplastic gingival lesions. Among these, diode lasers have the advantages of less bleeding, which is an important characteristic in mucosal lesions, a shorter procedure time, better healing, and less complications. We present the case of a 48-year-old male patient with a history of cerebral palsy and a presumptive diagnosis of traumatic fibroma. The entire lesion was removed in one session with no complications. No recurrence was observed at 3 months follow up. This procedure can be considered a good modality especially for physically challenged patients...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28370133/isobolographic-analyses-of-proglumide-celecoxib-interaction-in-rats-with-painful-diabetic-neuropathy
#11
Samuel Suarez-Mendez, Carlos A Tovilla-Zarate, Luis F Ortega-Varela, Deysi Y Bermudez-Ocaña, Jorge L Blé-Castillo, Thelma B González-Castro, Alma M Zetina-Esquivel, Juan C Diaz-Zagoya, Isela Esther Juárez-Rojop
Preclinical Research The aim of the present study was to analyze the antihyperalgesic and antiallodynic interaction between the non-selective cholecystokinin (CCK) antagonist receptor, proglumide, and the selective cyclooxygenase-2 inhibitor, celecoxib in streptozotocin (STZ)-induced diabetic rats. Hyperalgesia was evaluated in the formalin test and tactile allodynia using von Frey filaments. Isobolographic analyses were employed to define the nature of the compound interactions, using a fixed dose ratio (0...
April 3, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28351294/necessity-of-internet-regulation-to-prevent-suicides-in-mexico
#12
Carlos Alfonso Tovilla-Zárate, Sherezada Pool García, Isela E Juárez-Rojop, Thelma Beatriz González-Castro, Lilia López-Narváez
No abstract text is available yet for this article.
March 1, 2017: International Journal of Social Psychiatry
https://www.readbyqxmd.com/read/28342845/genotoxic-and-cytotoxic-evaluation-of-jatropha-dioica-sess%C3%A3-ex-cerv-by-the-micronucleus-test-in-mouse-peripheral-blood
#13
Diana Isela Araujo-Espino, Ana Lourdes Zamora-Perez, Guillermo Moisés Zúñiga-González, Rosalinda Gutiérrez-Hernández, Gabriela Morales-Velazquez, Blanca Patricia Lazalde-Ramos
Jatropha dioica Sessé ex Cerv. is a medicinal plant credited with low cytotoxicity in vitro. Thus, the objective of this work was to evaluate the possible genotoxic and cytotoxic effect in vivo of the J. dioica aqueous extract by means of micronucleus assay in mouse peripheral blood. Four different J. dioica aqueous extract dose-units were evaluated (30, 60, 100, and 300 mg/kg). The extract was administered orally to male Balb-C-strain mice every 24 h during 5 days. Blood samples were taken at 0, 24, 48, 72, 96, and 120 h from the mouse's tail and were performed in duplicate extensions...
March 23, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28302777/complete-genome-sequences-of-three-rhizobium-gallicum-symbionts-associated-with-common-bean-phaseolus-vulgaris
#14
Patricia Bustos, Rosa Isela Santamaría, Olga María Pérez-Carrascal, José Luis Acosta, Luis Lozano, Soledad Juárez, Irma Martínez-Flores, Esperanza Martínez-Romero, Miguel Ángel Cevallos, David Romero, Guillermo Dávila, Pablo Vinuesa, Fabiola Miranda, Ernesto Ormeño, Víctor González
The whole-genome sequences of three strains of Rhizobium gallicum reported here support the concept that the distinct nodulation host ranges displayed by the symbiovars gallicum and phaseoli can be largely explained by different symbiotic plasmids.
March 16, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28291534/ptpn22-1123g-c-polymorphism-and-anti-cyclic-citrullinated-protein-antibodies-in-rheumatoid-arthritis
#15
José Francisco Muñoz-Valle, Jorge Ramón Padilla-Gutiérrez, Jorge Hernández-Bello, Yeniley Ruiz-Noa, Yeminia Valle, Claudia Azucena Palafox-Sánchez, Isela Parra-Rojas, Sergio Ramón Gutiérrez-Ureña, Hector Rangel-Villalobos
BACKGROUND AND OBJECTIVES: The protein tyrosine phosphatase non-receptor type 22 (PTPN22) gene encodes an important negative regulator of T-cell activation, lymphoid-specific phosphatase -Lyp- and has been associated with different autoimmune disorders. The PTPN22 -1123G>C polymorphism appears to affect the transcriptional control of this gene, but to date, the biological significance of this polymorphisms on rheumatoid arthritis (RA) risk remains unknown. We evaluate the association of PTPN22 -1123G>C polymorphism with anti-cyclic citrullinated protein antibodies (anti-CCP) and risk for RA in population from Western Mexico...
March 10, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28262198/association-of-g308a-and-g238a-polymorphisms-of-the-tnf-%C3%AE-gene-with-risk-of-coronary-heart-disease-systematic-review-and-meta-analysis
#16
Karely Pulido-Gómez, Yazmín Hernández-Díaz, Carlos Alfonso Tovilla-Zárate, Isela Esther Juárez-Rojop, Thelma Beatriz González-Castro, María Lilia López-Narváez, Mariela Alpuin-Reyes
BACKGROUND AND AIMS: It is widely acknowledged that coronary heart disease (CHD) has a genetic influence. One of the most promising candidate genes is tumor necrosis factor-alpha (TNF-α). Although there have been several positive studies associating the TNF-α gene and CHD, the evidence is not entirely consistent. The aim of the study was to evaluate the role of the TNF-α gene in CHD using combined evidence by generating a meta-analysis and a systematic review of all published data...
October 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/28260903/gender-differences-in-the-association-between-htr2c-gene-variants-and-suicidal-behavior-in-a-mexican-population-a-case-control-study
#17
Gabriel Molina-Guzman, Thelma Beatriz González-Castro, Yazmín Hernández Díaz, Carlos Alfonso Tovilla-Zárate, Isela E Juárez-Rojop, Crystell Guadalupe Guzmán-Priego, Alma Genis, Sherezada Pool García, María Lilia López-Narvaez, José Manuel Rodriguez-Perez
BACKGROUND: The aim of this case-control study was to explore the association by gender between the HTR2C gene variants and suicidal behavior in a Mexican population. SUBJECTS AND METHODS: A total of 183 suicide attempters and 208 healthy volunteers were included in this study. We genotyped five polymorphisms of HTR2C (rs547536, rs2192372, rs4272555, rs6318, and rs2428707), then measured the association by genotype, allele, and haplotype. RESULTS: In the female group, we found an association between two polymorphisms of the HTR2C (rs4272555 and rs2428707) and suicide attempts...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28244778/las-medidas-antropom%C3%A3-tricas-como-indicadores-predictivos-de-riesgo-metab%C3%A3-lico-en-una-poblaci%C3%A3-n-mexicana
#18
Teresa Domínguez-Reyes, Irma Quiroz-Vargas, Aralia Berenice Salgado-Bernabé, Lorenzo Salgado-Goytia, José Francisco Muñoz-Valle, Isela Parra-Rojas
Introducción: actualmente se considera que la acumulación de grasa corporal a nivel central se asocia con la presencia de hipertrigliceridemia, hipertensión arterial y diabetes. El índice de masa corporal (IMC) se ha utilizado para identificar la obesidad en la población general, pero no permite determinar la distribución de la grasa corporal, por lo que se pueden utilizar otras medidas antropométricas para evaluar la adiposidad y determinar su relación con la presencia de alteraciones metabólicas que presentan las personas con exceso de peso...
February 1, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28165410/bone-mineral-density-mechanical-microstructural-properties-and-mineral-content-of-the-femur-in-growing-rats-fed-with-cactus-opuntia-ficus-indica-l-mill-cactaceae-cladodes-as-calcium-source-in-diet
#19
Ezequiel Hernández-Becerra, Elsa Gutiérrez-Cortez, Alicia Del Real, Alejandra Rojas-Molina, Mario Rodríguez-García, Efraín Rubio, Michelle Quintero-García, Isela Rojas-Molina
Mechanical, microstructural properties, mineral content and bone mineral density (BMD) of the femur were evaluated in growing rats fed with Opuntia ficus indica (L.) Mill. (Cactaceae) cladodes at different maturity stages as calcium source. Male weanling rats were fed with cladodes at early maturity stage (25 and 60 days of age, belonging to groups N-60 and N-200, respectively) and cladodes at late maturity stage (100 and 135 days of age, belonging to groups N-400 and N-600, respectively) for 6 weeks. Additionally, a control group fed with calcium carbonate as calcium source was included for comparative purposes...
February 4, 2017: Nutrients
https://www.readbyqxmd.com/read/28141710/the-curse-of-the-dolphins-cognitive-decline-and-psychosis
#20
Randall Phelps, Anne Tsai, Arlene Hagen, Joseph Pinter, Raegan Smith, Martin T Stein
Isela is an 11-year-old Mexican-American girl with mild intellectual disability. During a vacation with her family, she went swimming with dolphins. A few days later, Isela awoke at night with laughing spells; during the day, she was pacing, aggressive, and had a decline in self-care and communication skills. Her parents attributed the symptoms to the dolphins. She was evaluated by a pediatric neurologist. The sleep-deprived electroencephalogram, brain magnetic resonance imaging, lumbar puncture, and thyroid function tests were normal...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
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