Flor de mayo (Laelia speciosa (Kunth) Schltr), la estrella de Belén

Flor de mayo (Laelia speciosa (Kunth) Schltr) es una especie originaria de México con amplia distribución en bosques templados de sierras altas de varios estados de la República Mexicana. Desde tiempos precolombinos ha representado un papel importante dentro de las fiestas locales, llegando a constituir un distintivo para el caso de la comunidad de Belén Atzitzimititlán, municipio de Apetatitlán de Antonio Carvajal, Tlaxcala, México, adoptando el nombre de “orquídea de Belén”, cuyo nombre en náhuatl es “Itzmaqua”. Se describe su importancia y potencial como flor de corte de alto valor económico, así como breves técnicas de multiplicación y conservación, a fin de atenuar su fragilidad en el ecosistema y pérdida potencial

DISTINCIÓN DE SÍNTOMAS DEL VIROIDE Sun blotch EN EL AGUACATERO (Persea americana Mill.) EN MÉXICO

Se describe la importancia y síntomas visuales de la enfermedad “Sunblotch” o “rayito de sol” en diferentes órganos de la planta del aguacatero (Persea americana Mill.), causada por el viroide denominado ASBVd (Avocado Sunblotch Viroid). Esta enfermedad está ampliamente distribuida a nivel mundial en los países productores de aguacate, tales como Guatemala, Sudáfrica, Estados Unidos, Perú, Costa Rica, Venezuela, Israel, España, Chile, Australia y México, donde se localiza en todos los municipios de la franja aguacatera. Se hace una breve descripción de las condiciones agroclimáticas que favorecen su sintomatología, algunas medidas para evitar su distribución y se muestra una galería gráfica de las diferentes expresiones de esta enfermedad en un cultivo tan importante para la economía mexicana

Transcription of Leishmania major U2 small nuclear RNA gene is directed by extragenic sequences located within a tRNA-like and a tRNA-Ala gene

Sequence comparisons of U2 snRNA genes and flanking regions from T. cruzi (CL Brener Non-Esmeraldo-like). Sequences from the genes located on chromosomes 23, 37 and 6 are shown. The U2 snRNA gene from chromosome 23 is presented in blue font. The position of boxes A and B is indicated. Sequence numbers are relative to the TSS (+1) from the U2 snRNA. (PDF 1404 kb

Examination of the Feynman-Hibbs Approach in the Study of NeN_N-Coronene Clusters at Low Temperatures

Feynman-Hibbs (FH) effective potentials constitute an appealing approach for investigations of many-body systems at thermal equilibrium since they allow us to easily include quantum corrections within standard classical simulations. In this work we apply the FH formulation to the study of Ne$_N$-coronene clusters ($N=$ 1-4, 14) in the 2-14 K temperature range. Quadratic (FH2) and quartic (FH4) contributions to the effective potentials are built upon Ne-Ne and Ne-coronene analytical potentials. In particular, a new corrected expression for the FH4 effective potential is reported. FH2 and FH4 cluster energies and structures -obtained from energy optimization through a basin-hoping algorithm as well as classical Monte Carlo simulations- are reported and compared with reference path integral Monte Carlo calculations. For temperatures $T> 4$ K, both FH2 and FH4 potentials are able to correct the purely classical calculations in a consistent way. However, the FH approach fails at lower temperatures, especially the quartic correction. It is thus crucial to assess the range of applicability of this formulation and, in particular, to apply the FH4 potentials with great caution. A simple model of $N$ isotropic harmonic oscillators allows us to propose a means of estimating the cut-off temperature for the validity of the method, which is found to increase with the number of atoms adsorbed on the coronene molecule

Genotoxicity by Electromagnetic Fields

Modern life implies a constant exposure of living organisms to many sources of radiation, especially electromagnetic fields (EMFs) generated by our technological devices. The question of whether or not EMFs in the non-ionizing extremely low frequency (ELF) range can induce genotoxic effects is currently a subject of interest. People of industrialized societies are commonly exposed to EMFs and waves in a very broad range of frequencies, including power lines, telecommunications, and domestic and industrial equipment. In this review, we present controversial evidence from our research group and others of genotoxicity induced by ELF-EMFs, since scientific community consider EMF devices produce marginal amounts of energy, which does not justify any DNA alterations, together with conflicting laboratory results and few epidemiological studies. However, in 2002 the International Agency for Research on Cancer (IARC) categorized ELF-EMFs as being potential carcinogenic and genotoxic agents to humans. The aim of the present chapter is to discuss the role of ELM-EMFs on human genotoxicity

Prepubertal Children With Metabolically Healthy Obesity or Overweight Are More Active Than Their Metabolically Unhealthy Peers Irrespective of Weight Status: GENOBOX Study

Background and Aim: The association of a metabolically healthy status with the practice of physical activity (PA) remains unclear. Sedentarism and low PA have been linked to increased cardiometabolic risk. The aim of this study was to evaluate the PA levels in metabolically healthy (MH) or unhealthy (MU) prepubertal children with or without overweight/obesity. Methods: A total 275 children (144 boys) with 9 ± 2 years old were selected for the GENOBOX study. PA times and intensities were evaluated by accelerometry, and anthropometry, blood pressure, and blood biochemical markers were analyzed. Children were considered to have normal weight or obesity, and further classified as MH or MU upon fulfillment of the considered metabolic criteria. Results: Classification resulted in 119 MH children (21% with overweight/obesity, referred to as MHO) and 156 MU children (47% with overweight/obesity, referred to as MUO). Regarding metabolic profile, MHO showed lower blood pressure levels, both systolic and diastolic and biochemical markers levels, such as glucose, Homeostatic Model Assessment of Insulin Resistance, triglycerides and higher HDL-c levels than MUO (P < 0.001). In addition, MHO children spent more time in PA of moderate intensity compared with MUO children. In relation to vigorous PA, MH normal weight (MHN) children showed higher levels than MUO children. Considering sex, boys spent more time engaged in moderate, vigorous, and moderate–vigorous (MV) PA than girls, and the number of boys in the MH group was also higher. Conclusion: Prepubertal MHO children are less sedentary, more active, and have better metabolic profiles than their MUO peers. However, all children, especially girls, should increase their PA engagement, both in terms of time and intensity because PA appears to be beneficial for metabolic health status itself. Copyright © 2022 Llorente-Cantarero, Leis, Rupérez, Anguita-Ruiz, Vázquez-Cobela, Flores-Rojas, González-Gil, Aguilera, Moreno, Gil-Campos and Bueno

Asociación de scores de evaluación integral con mortalidad intrahospitalaria en pacientes geriátricos críticos de un hospital de referencia nacional de Perú.

Objective: To evaluate the association of comprehensive assessment scores with mortality in geriatric patients of a national reference hospital in Peru. The study: A prospective cohort study was conducted. Patients over 60 years of age were included during the period from November 1, 2021 to June 30, 2022. The data was collected from the clinical history. SOFA, KATZ, FAST and Charlson Index scores were included to evaluate the association with mortality. Findings: 93 participants were found.The prevalence of mortality was 32.3%. In the simple regression, an association was observed between SOFA score greater than or equal to 12 (RR:15.3), FAST score (RR:2.29) and the Charlson index (RR:2.46) with intrahospital mortality. In the multiple regression adjusted for age and sex, only the SOFA score maintained statistical significance (RR: 13.42 p&lt;0.001).  Conclusion: The SOFA score has a strong association with in-hospital mortality in geriatric patients admitted to an intensive care unit in Peru.Objetivo: Evaluar la asociación de scores de valoración integral con mortalidad intrahospitalaria en pacientes geriátricos críticos. El estudio: Se realizó un estudio de cohorte prospectivo. Se incluyó a pacientes mayores de 60 años, periodo del 01 de noviembre del 2021 al 30 de junio del 2022. Se incluyeron los scores de SOFA, KATZ, FAST y el Índice de Charlson para evaluar la asociación con mortalidad. Hallazgos: Se encontró un total de 93 participantes. La mortalidad intrahospitalaria fue de 32.3%.  En la regresión simple se observó asociación entre puntaje mayor o igual a 12 de SOFA (RR:15.3), FAST (RR:2.29) y el índice de Charlson (RR:2.46) con la mortalidad intrahospitalaria. En la regresión múltiple ajustada por edad y sexo solo la puntuación de SOFA mantuvo significancia estadística (RR:13.42 p&lt;0.001). Conclusión:  La puntuación de SOFA tiene una fuerte asociación con mortalidad intrahospitalaria en pacientes admitidos a una unidad de cuidados intensivos en Perú

Evaluation of the safety, tolerance and efficacy of 1-year consumption of infant formula supplemented with Lactobacillus fermentum CECT5716 Lc40 or Bifidobacterium breve CECT7263: a randomized controlled trial

Background: The microorganism present in breast milk, added to other factors, determine the colonization of infants. The objective of the present study is to evaluate the safety, tolerance and effects of the consumption of a milk formula during the first year of life that is supplemented with L. fermentum CECT5716 or Bifidobacterium breve CECT7263, two strains originally isolated from breast milk. Results: One hundred and eighty-nine infants completed the eleven months of intervention (61 in control group, 65 in Lf group and 63 in Bb group). The growth of infants in the three groups was consistent with standards. No significant differences were observed in the main outcome, weight-gain (Control group: 5.77 Kg ± 0.95, Lf group: 5.77 Kg ± 1.31, Bb group: 5.58 Kg ± 1.10; p = 0.527). The three milk formulae were well tolerated, and no adverse effects were related to the consumption of any of the formula. Infants receiving B. breve CECT7263 had a 1.7 times lower risk of crying than the control group (OR = 0.569, CI 95% 0.568–0.571; p = 0.001). On the other hand, the incidence of diarrhoea in infants receiving the formula supplemented with L. fermentum CECT5716 was a 44% lower than in infants receiving the control formula (p = 0.014). The consumption of this Lactobacillus strain also reduced the duration of diarrhoea by 2.5 days versus control group (p = 0.044). Conclusions: The addition of L. fermentum CECT5716 Lc40 or B. breve CECT7263, two probiotic strains naturally found in breast milk, to infant formulae is safe and induces beneficial effects on the health of infants.This work was funded by Biosearch Life supported by a grant from the Agency of Innovation and Development of Andalusia (IDEA-Spain), Cofinanced by European Regional Development Fund (EC). Project Tittle: “New applications of probiotic strains and derived compounds with biological activity (POSTBIO)” and partially funded by Lactalis-Puleva (Granada, Spain)

Factores asociados a la colonización rectal por Enterobacteriaceae productoras de betalactamasas de espectro extendido en pacientes de consulta externa de un hospital al norte del Perú

"Introducción: Las Enterobacteriaceae productoras de betalactamasas de espectro extendido están presentes en las heces de los individuos de la comunidad. En Perú, la automedicación, el tipo de alimentación, condiciones sanitarias podrían asociarse a esta colonización. Objetivo: determinar la frecuencia de colonización rectal por EP-BLEE en pacientes de consulta externa del Hospital Regional Lambayeque, así como los factores asociados a la misma, durante los meses de julio 2018 a febrero 2019. Material y método: 331 pacientes participantes fueron entrevistados, de los cuales se obtuvieron tres muestras seriadas de heces recién emitidas. Las muestras fueron cultivadas en agar McConkey. Las EP-BLEE se confirmaron con la prueba de disco combinado (método americano). Resultados: el 85,8 % de los pacientes estuvieron colonizados por EP-BLEE, siendo Escherichia coli el aislamiento más frecuente (87,7 %). El análisis bivariado asoció el consumo de carne de cerdo (RP=1,15 IC 95%: 1,07 1,24), caprino (RP=1,18, IC 95%: 1,10 1,25) y el consumo de ensaladas frecuentemente (RP=1,15, IC 95 %: 1,05 1,28) con una mayor probabilidad de ser portador rectal de EP-BLEE. La automedicación presentó valores cercanos al límite de validez (p=0,051, RP 1,12, IC 95% 0,98 1,26). Conclusiones: Consumir carne de cerdo, caprino y ensaladas aumentan la probabilidad de ser portador de EP-BLEE, mientras que la automedicación podría estar asociada, por lo que es necesario seguir investigando, ya que se desconocen las razones de este hallazgo en pacientes de la comunidad.

CONOCIMIENTOS QUE TIENEN LOS ALUMNOS DE ENFERMERÍA DE LA HIPERTENSIÓN ARTERIAL.

Introduction: Knowledge about hypertension among nurses is a subject of great concern due to their important role in prevention, health education, control and follow-up of hypertensive patients. As hypertension is a prevalent health condition in western societies, the goal of this work is to assess the level of knowledge about high blood pressure in a sample of nursing students, as future professionals of this discipline. The results will help us to improve their formation and their lifestyle habits. Methods: Descriptive study. Variables were analysed using Chi-square tests, complemented with residual analysis.Los conocimientos que sobre la hipertensión arterial pueden tener las enfermeras en el desarrollo de su actividad profesional tienen una gran importancia, dada su responsabilidad en este campo, tanto en la prevención de los factores de riesgo, realizando educación sanitaria, como en el control de la presión arterial y en los cuidados, cuando se producen complicaciones. En este trabajo pretendemos profundizar en los conocimientos de los alumnos de enfermería, como futuros profesionales, en un tema tan frecuente en las sociedades desarrolladas como es la hipertensión arterial, para así poder mejorar su formación y sus hábitos de vida no siempre saludables. El objetivo de este trabajo es profundizar en los conocimientos que sobre la hipertensión arterial tienen los alumnos de la Escuela de Enfermería de la Universidad de Murcia. Material y método: se realizó un estudio descriptivo de las variables y los análisis estadísticos correspondientes de X2 de Pearson, complementado con un análisis de residuos