10 research outputs found

    Motives for Male and Female University Students Engaging in Physical Exercise

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    This paper focuses on comparing the motives for male and female Mexican university students engaging in physical exercise. The sample consisted of 455 participants; 237 women and 218 men with a mean age of 20.07 years (SD = 2.04) and 21.50 years (SD = 2.38) respectively. The approach adopted for this research was quantitative with a survey like descriptive design. Results from the multivariate analysis of variance, followed up by univariate analysis of variance, show that men exhibit a better motivational profile to engage in physical exercise. The encountered differences among female and male university students with respect to their motives in performing physical exercise suggest that when designing any type of interventionwith the goal of improving motivational profiles, it is necessary to consider the variable gender. Future research should replicate these results in larger samples

    Dietary Supplementation with Probiotics Improves Hematopoiesis in Malnourished Mice

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    BACKGROUND: Lactobacillus rhamnosus CRL1505 (Lr) administered during the repletion of immunocompromised-malnourished mice improves the resistance against intestinal and respiratory infections. This effect is associated with an increase in the number and functionality of immune cells, indicating that Lr could have some influence on myeloid and lymphoid cell production and maturation. OBJECTIVE: This study analyzed the extent of the damage caused by malnutrition on myeloid and lymphoid cell development in the spleen and bone marrow (BM). We also evaluated the impact of immunobiotics on the recovery of hematopoiesis affected in malnourished mice. METHODS: Protein malnourished mice were fed on a balanced conventional diet for 7 or 14 consecutive d with or without supplemental Lr or fermented goat's milk (FGM). Malnourished mice and well-nourished mice were used as controls. Histological and flow cytometry studies were carried out in BM and spleen to study myeloid and lymphoid cells. RESULTS: Malnutrition induced quantitative alterations in spleen B and T cells; however, no alteration was observed in the ability of splenic B cells to produce immunoglobulins after challenge with LPS or CpG. The analysis of BM B cell subsets based on B220, CD24, IgM and IgD expression showed that malnutrition affected B cell development. In addition, BM myeloid cells decreased in malnourished mice. On the contrary, protein deprivation increased BM T cell number. These alterations were reverted with Lr or FGM repletion treatments since normal numbers of BM myeloid, T and B cells were observed in these groups. CONCLUSIONS: Protein malnutrition significantly alters B cell development in BM. The treatment of malnourished mice with L. rhamnosus CRL1505 was able to induce a recovery of B cells that would explain its ability to increase immunity against infections. This work highlights the possibility of using immunobiotics to accelerate the recovery of lymphopoyesis in immunocompromised-malnourished hosts

    Dendritic Cells Exposed to MVA-Based HIV-1 Vaccine Induce Highly Functional HIV-1-Specific CD8+ T Cell Responses in HIV-1-Infected Individuals

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    Currently, MVA virus vectors carrying HIV-1 genes are being developed as HIV-1/AIDS prophylactic/therapeutic vaccines. Nevertheless, little is known about the impact of these vectors on human dendritic cells (DC) and their capacity to present HIV-1 antigens to human HIV-specific T cells. This study aimed to characterize the interaction of MVA and MVA expressing the HIV-1 genes Env-Gag-Pol-Nef of clade B (referred to as MVA-B) in human monocyte-derived dendritic cells (MDDC) and the subsequent processes of HIV-1 antigen presentation and activation of memory HIV-1-specific T lymphocytes. For these purposes, we performed ex vivo assays with MDDC and autologous lymphocytes from asymptomatic HIV-infected patients. Infection of MDDC with MVA-B or MVA, at the optimal dose of 0.3 PFU/MDDC, induced by itself a moderate degree of maturation of MDDC, involving secretion of cytokines and chemokines (IL1-ra, IL-7, TNF-α, IL-6, IL-12, IL-15, IL-8, MCP-1, MIP-1α, MIP-1β, RANTES, IP-10, MIG, and IFN-α). MDDC infected with MVA or MVA-B and following a period of 48 h or 72 h of maturation were able to migrate toward CCL19 or CCL21 chemokine gradients. MVA-B infection induced apoptosis of the infected cells and the resulting apoptotic bodies were engulfed by the uninfected MDDC, which cross-presented HIV-1 antigens to autologous CD8+ T lymphocytes. MVA-B-infected MDDC co-cultured with autologous T lymphocytes induced a highly functional HIV-specific CD8+ T cell response including proliferation, secretion of IFN-γ, IL-2, TNF-α, MIP-1β, MIP-1α, RANTES and IL-6, and strong cytotoxic activity against autologous HIV-1-infected CD4+ T lymphocytes. These results evidence the adjuvant role of the vector itself (MVA) and support the clinical development of prophylactic and therapeutic anti-HIV vaccines based on MVA-B

    Regionalización y desigualdades socioeconómicas de la cuenca del río Mololoa, Nayarit, México

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    In order to regionalize and identify the variables that determine socioeconomic inequality, spatial quantitative and correlation analysis methods were applied to 19 socioeconomic variables obtained for each of the 35 localities settled in the basin, which resulted in a geographic model of socioeconomic regions in function to the correlation amongst variables. Concluding that variables of indigenous population, population from 18 to 24 years old with access to education and economically active population are the ones that determine socioeconomic variables between the eight regions of the basin of River Mololoa.Con el objeto de regionalizar e identificar las variables que determinan la desigualdad socioeconómica, se aplicaron métodos de análisis espacial cuantitativo y análisis de correlación a 19 variables socioeconómicas obtenidas para cada una de las 36 localidades asentadas en la cuenca, lo que dio como resultado un modelo geográfico de regiones socioeconómicas en función a la correlación entre las variables. Concluyendo que las variables de población indígena, población de 18 a 24 años con acceso a la educación y la población económicamente activa son las que determinan la desigualdad socioeconómica entre las ocho regiones de la cuenca del río Mololoa

    Immunosilencing of a promiscuous T cell epitope in AAV9 gene therapy vector by rational design chimerism

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    Raw data for figures 1, 2 and 3 in manuscript titled "Rational immunosilencing of a promiscuous T-cell-epitope on adeno-associated viruses

    Abstract 5850: Nrf2-mediated oxidative stress response is altered during acquired resistance to the proteasome inhibitor, oprozomib, in multiple myeloma

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    Abstract Multiple myeloma (MM) is a hematologic neoplasm characterized by malignant proliferation of plasma cells in the bone marrow. Proteasome inhibitors are widely used in treatment regimens for MM. Although initial responses to PI (e.g., bortezomib, carfilzomib) treatments have been promising, patients often develop resistance and become refractory to disease. Understanding molecular alterations in signaling cascades influenced by proteasome inhibitors and mechanisms underlying acquired resistance is needed. In this study, we have established a clinically relevant oproxomib-resistant subline (KMS28BMONYX) of the MM cell line KMS28BM. The KMS28BMONYX cell line is pan-resistant to PIs with a 10-fold increase in IC50 for oprozomib as compared to the parental line. To identify genes involved in modulating drug resistance, we analyzed gene expression profiles of both parental and resistant cell lines using the Affymetrix GeneChip Human Genome U133 Plus 2.0 array. Ingenuity Pathway Analysis of microarray data comparing the parental and resistant cells revealed an acute dependence on stress response proteins to maintain PI-resistance. Activation of nuclear factor-erythroid 2 (NF-E2)-related factor 2 (Nrf2; gene symbol NFE2L2) coupled with elevated levels of sequestosome 1/p62 (SQSTM1/p62) were prominent features of the KMS28BMONYX cell line. Altered levels of SQSTM1 correlated with resistance to oprozomib in several MM cell lines. Simultaneously, the KMS28BMONYX cell line showed increased expression of MYC and MCL1. Oprozomib treatment stabilized c-Myc expression in the KMS28BMONYX line. The Champion ChiP Transcription Factor Search Portal database DECODE predicted two c-Myc transcription factor binding sites in the SQSTM1 promoter. CHIP-seq data for MYC in MM1s cells also indicates strong binding in the promoter region of SQSTM1. Our data suggest that therapies targeting the SQSTM1/p62-Nrf2 pathway may help overcome proteasome inhibitor resistance in refractory MM patients. Citation Format: Snehal M. Gaikwad, Adriana Zingone, Aleksandra Michalowski, Susana Najera, Anaisa Quintanilla-Artega, Sayeh Gorjifard, John Simmons, Nick Watson, Ola Landgren, Jing Huang, Beverly Mock. Nrf2-mediated oxidative stress response is altered during acquired resistance to the proteasome inhibitor, oprozomib, in multiple myeloma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 5850

    Mortiño (Vaccinium floribundum Kunth): an underutilized superplant from the Andes

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    Mortiño is a member of the Ericaceae family native to the Andes that has been used bylocal communities for centuries. This species has shown potential in the areas of medicine, agronomy,and green technology. We used a multidisciplinary approach to review aspects related to the ecology,horticulture, composition and potential biotechnological applications of mortiño. As interest in thisspecies grows, care must be taken to identify opportunities that justify its sustainable use whileemphasizing the development of local communities. Mapping the wide variety of potential uses andthe current state of conservation and utilization of this berry will help researchers to better targetmortiño’s potentia

    Memoria del primer foro sobre logros, problemas y propuestas de los cuerpos académicos de educación y humanidades de la Universidad Autónoma del Estado de México

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    Motivados por el interés de dialogar nuestras preocupaciones cotidianas en torno al quehacer académico en la Universidad, e impulsados por la inquietud de compartir puntos de vista y apreciaciones acerca de la forma en que organizamos colectivamente el trabajo académico (en especial, de investigación) en los diferentes espacios de especialización disciplinaria e interdisciplinaria en los campos de las Ciencias de la Educación y las Humanidades, asistimos a la convocatoria para reflexionar qué tanto hemos avanzado como verdaderos equipos de trabajo (sobre todo en lo relativo a la investigación) y cuánto aún nos queda por hacer, a fin de coordinar esfuerzos individuales y sumar capacidades en proyectos y actividades comunes a cada cuerpo académico
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