Comprehensive investigation of persistent and mobile chemicals and per- and polyfluoroalkyl substances in urine of flemish adolescents using a suspect screening approach.

Persistent and mobile chemicals (PMs) and per- and polyfluoroalkyl substances (PFAS) are groups of chemicals that have received recent global attention due to their potential health effects on the environment and humans. In this study, exposure to a broad range of PMs and PFAS was investigated in Flemish adolescents' urine samples (n = 83) using a suspect screening approach. For this purpose, three sample preparation methods were evaluated, and a basic liquid-liquid extraction was optimized for urine analysis based on the extraction efficiency of PMs (53-80%) and PFAS (>70%). In total, 9 PMs were identified in urine samples at confidence levels (CL) 1-3 and, among them, acetaminophen, 4-aminophenol, 2,2,6,6-tetramethyl-4-piperidone, trifluoroacetic acid (TFAA), sulisobenzone, ethyl sulfate, and 1,2-benzisothiazol-3(2H)-one 1,1-dioxide were confirmed at CL 1 and 2. In addition, the detection and identification of 2,2,6,6-tetramethyl-4-piperidone, 4-aminophenol, TFAA, and m-(2,3-epoxypropoxy)-N,N-bis(2,3-epoxypropyl) aniline (CL 3), has been reported for the first time in human urine in this study. For PFAS, only 2 compounds were identified at CL 4, implying that urine is not a suitable matrix for suspect screening of such compounds. A significant difference between sexes was observed in the detection rate of identified PMs, in particular for acetaminophen, 4-aminophenol, and sulisobenzone. The findings of this study can be used in future human biomonitoring programs, such as by including the newly identified compounds in quantitative methods or monitoring in other human matrices (e.g., serum).

Tanshinone IIA prevents acute lung injury by regulating macrophage polarization / 中西医结合学报

OBJECTIVE@#Acute lung injury (ALI) is a serious respiratory dysfunction caused by pathogen or physical invasion. The strong induced inflammation often causes death. Tanshinone IIA (Tan-IIA) is the major constituent of Salvia miltiorrhiza Bunge and has been shown to display anti-inflammatory effects. The aim of the current study was to investigate the effects of Tan-IIA on ALI.@*METHODS@#A murine model of lipopolysaccharide (LPS)-induced ALI was used. The lungs and serum samples of mice were extracted at 3 days after treatment. ALI-induced inflammatory damages were confirmed from cytokine detections and histomorphology observations. Effects of Tan-IIA were investigated using in vivo and in vitro ALI models. Tan-IIA mechanisms were investigated by performing Western blot and flow cytometry experiments. A wound-healing assay was performed to confirm the Tan-IIA function.@*RESULTS@#The cytokine storm induced by LPS treatment was detected at 3 days after LPS treatment, and alveolar epithelial damage and lymphocyte aggregation were observed. Tan-IIA treatment attenuated the LPS-induced inflammation and reduced the levels of inflammatory cytokines released not only by inhibiting neutrophils, but also by macrophage. Moreover, we found that macrophage activation and polarization after LPS treatment were abrogated after applying the Tan-IIA treatment. An in vitro assay also confirmed that including the Tan-IIA supplement increased the relative amount of the M2 subtype and decreased that of M1. Rebalanced macrophages and Tan-IIA inhibited activations of the nuclear factor-κB and hypoxia-inducible factor pathways. Including Tan-IIA and macrophages also improved alveolar epithelial repair by regulating macrophage polarization.@*CONCLUSION@#This study found that while an LPS-induced cytokine storm exacerbated ALI, including Tan-IIA could prevent ALI-induced inflammation and improve the alveolar epithelial repair, and do so by regulating macrophage polarization.

Disfunción sexual femenina: una mirada a los últimos 44 años. Análisis bibliométrico / Female Sexual Dysfunction: Looking Back at the Last 44 Years. A Bibliometric Analysis

Objetivo La disfunción sexual femenina (DSF) es un trastorno prevalente que afecta la calidad de vida de las mujeres y combina factores biológicos, psicológicos e interpersonales. Su estudio ha sido de poco interés, en campos como la investigación y el tratamiento, debido a la dificultad en la medición de las respuestas sexuales en las mujeres y otros factores, como el tabú acerca de la sexualidad femenina. Este estudio caracteriza las tendencias de publicaciones científicas acerca del tema, para que los urólogos puedan comprender la necesidad de realizar la búsqueda de este trastorno en la práctica diaria. Métodos Se realizó una búsqueda de la literatura en las bases de datos PubMed, FABUMED y Scopus, utilizando la estrategia «((«female sexual dysfunction¼ [Title/Abstract])¼. Se realizó un análisis bibliométrico descriptivo, de corte retrospectivo, de la literatura médica obtenida en MEDLINE. A través de las herramientas estadísticas FABUMED, PubReminer y Scopus, se recopilaron los datos y se obtuvo los resultados de las variables que posteriormente fueron analizadas de forma estadística y descriptiva. Con base en esta información, elaboramos tablas y gráficas en Microsoft Office Excel 2017. Adicionalmente, realizamos un análisis de mapeo bibliométrico utilizando el programa VOSviewer. Para la obtención del factor de impacto (FI), utilizamos el Journal Citation Reports 2017/2018. Resultados Desde 1975 hasta 2019, se publicaron 1.292 estudios, y la tasa anual de publicación permaneció estable entre 1975 y 2000. Pero, a partir del año 2000, se evidenció un aumento en el número de publicaciones, con un crecimiento del 92,1%. De las veinte revistas con más publicaciones, sólo cuatro son de urología. Los países con más publicaciones fueron: Estados Unidos (31,4%), Reino Unido (12,9%), Italia (8,9%), Turquía (5,9%), y Australia (4%). Estos datos son muy diferentes a los de los países de América Latina, en los que se encontraron muy pocas publicaciones, como Colombia, con tan sólo tres estudios. Conclusiones Este análisis bibliométrico mostró las diferentes tendencias y tasas de publicación de estudios sobre DSF, y evidenció una baja tasa de producción con relación a otras temáticas, sobre todo en las revistas urológicas, con predominio de mujeres como autores, aunque en los últimos años se ha identificado un crecimiento importante y sostenido. Se hace evidente la necesidad de desarrollar estrategias para mejorar la formación tanto en los niveles de posgrado como de pregrado y, así, generar más adhesión a este tema en una especialidad quirúrgica como la nuestra.

Objectives Female sexual dysfunction (FSD) is a prevalent disorder that affects the quality of life of women and combines biological, psychological, and interpersonal factors. There has been a lack of interest in studying FSD in such fields as research and treatment, due to the difficulty in measuring the sexual responses of women and other factors such as the taboo surrounding female sexuality. The present study portrays the trends in the scientific publications on the subject, so urologists can perceive and understand the need for research about this disorder in the daily practice. Methods A comprehensive review on the topic was performed through a PubMed, FABUMED, and Scopus databases using the search strategy "female sexual dysfunction", as well as a retrospective, descriptive, bibliometric analysis of the medical literature retrieved from MEDLINE. Data was collected through the FABUMED, PubReMiner, and Scopus statistical tools, and, based on the results obtained for the variables, which were later submitted to a statistical and descriptive analysis. Based on this data, tables and graphs were developed using the Microsoft Office Excel 2017 software. Moreover, we performed a bibliometric mapping analysis using the VOSviewer software. In order to obtain the impact factor (IF), we used the Journal Citation Reports 2017/2018. Results From 1975 to 2019, 1,292 studies were published; yearly publication rate remained stable from1975 to 2000, but after year 2000, an increase in the number of publications was evidenced, with a growth of 92.1%. But as of the year 2000, an increase in the number of publications was evidenced, with a growth of 92.1%. Of the twenty journals with the most publications, only four are on urology. The countries with the greatest number of publications were: the United States (31.4%), the United Kingdom (12.9%), Italy (8.9%), Turkey (5.9%), and Australia (4%). This data differs from that of Latin American countries, in which few publications were found, such as in Colombia, with only three studies. Conclusions The present bibliometric analysis showed the different trends and publication rates of studies on FSD, showing a low production rate as compared with that of other urological topics, especially in Urological journals, with a predominance of women as authors, although in recent years an important and sustained growth has been identified. The need to develop strategies to improve training at both the graduate and undergraduate levels and thus generate more adherence to these issues in a surgical specialty like ours is evident.

Conocimientos, prácticas y prevalencia de uso de medidas de protección adecuada frente a la radiación ultravioleta en habitantes de Bogotá D.C. (2013-2018) / Knowledges, practices, and prevalence of the use of appropriate protective measures facing ultraviolet radiation (UVR) in inhabitants of Bogotá D.C. (2013-2018) / Conhecimento, práticas e prevalência do uso de medidas de proteção adequadas contra a radiação ultravioleta em habitantes de Bogotá D.C. (2013-2018)

Objetivo: describir los conocimientos, las prácticas y la prevalencia de uso de medidas de protección adecuadas frente a la radiación ultravioleta (RUV) en una muestra de habitantes de Bogotá D.C., Colombia (2013-2018). Método: estudio de corte transversal a partir de encuestas realizadas por la Secretaría Distrital de Salud (SDS) en diferentes sectores de Bogotá. Se entrevistaron transeúntes de áreas públicas de concentración masiva en las 20 localidades de Bogotá, los cuales fueron incluidos de forma secuencial y por conveniencia. Se estudiaron aspectos sociodemográficos, fenotípicos, antecedente de interés, conocimientos y prácticas relacionadas con la exposición a la RUV. Resultados: se analizaron 8.420 encuestas, donde el 66 % (n: 5.560) eran sujetos de género femenino, con una mediana de edad de 38 años. La mayoría de los encuestados se ubicaron en los estratos socioeconómicos del I al III (95,6 %; n: 8.051). El 27 % declaró una ocupación laboral al aire libre (n: 2.268) y el 50 % reportaron exponerse a la RUV los siete días de la semana (n: 4.255). El 70 % de los participantes (n: 5.870) reconoció que la RUV es un factor de riesgo de cáncer de piel, pero tan sólo el 20,8 % (n: 1.753) reportó prácticas adecuadas de protección. Conclusiones: a pesar del alto nivel de conocimiento frente a los riesgos de la RUV existe un bajo porcentaje de uso de medidas de protección en esta muestra de habitantes de Bogotá. Se deben reforzar las estrategias que conduzcan a incrementar la protección frente a la RUV en este grupo poblacional.

Objective: To describe knowledge, practices, and prevalence of the use of appropriate protective measures facing ultraviolet radiation (UVR) in a sample of inhabitants of Bogotá D.C., Colombia (2013-2018). Method: A cross-sectional study from surveys carried out by the District Secretariat of Health (SDS according to its Spanish initials) in different sectors of Bogotá. Transients of public areas of mass concentration in 20 localities of Bogotá were interviewed. These were included in a sequential way and by convenience. Sociodemographic, phenotype aspects were studied, along with interests, knowledge, and practices related to UVR exposure. Results: 8,420 surveys were analyzed, where 66% (n: 5,560) were female, with an average age of 38 years. Most people surveyed were in socioeconomic levels I to III (95.6%; n: 8,051). 27% declared that they worked outside (n: 2,268), and 50% reported exposure to UVR seven days a week (n: 4,255). 70% of participants (n: 5,870) recognized that UVR is a skin cancer risk factor, but only 20.8% (n: 1,753) reported appropriate protection measures. Conclusions: Despite high levels of knowledge regarding the risk of UVR, there is a low level of use of protection measures in this sample of inhabitants in Bogotá. Strategies must be reinforced that lead to an increase of protection against UVR in this population group.

Objetivo: descrever os conhecimentos, as práticas e a prevalência do uso de medidas de proteção adequadas contra a radiação ultravioleta (RUV) em uma amostra de habitantes de Bogotá D.C., Colômbia (2013-2018). Método: estudo transversal baseado em inquéritos realizados pela Secretaria Distrital de Saúde (SDS) em diferentes setores de Bogotá. Foram entrevistados transeuntes de áreas públicas de maior concentração nas 20 localidades de Bogotá; eles foram incluídos sequencialmente e por conveniência. Foram estudados aspectos sociodemográficos e fenotípicos, histórico de interesse, conhecimentos e práticas relacionadas à exposição à RUV. Resultados: foram analisados 8.420 inquéritos, dos quais 66% (n: 5.560) eram do sexo feminino, com mediana de idade de 38 anos. A maioria dos entrevistados estava localizados nos estratos socioeconômicos de I a III (95,6%; n: 8.051). 27% declararam ocupação ao ar livre (n: 2.268) e 50% relataram exposição à RUV sete dias por semana (n: 4.255). 70% dos participantes (n: 5.870) reconheceram que a RUV é um fator de risco para câncer de pele, mas apenas 20,8% (n: 1.753) relataram práticas de proteção adequadas. Conclusões: apesar do alto nível de conhecimento sobre os riscos da RUV, há um baixo percentual de uso de medidas de proteção nesta amostra de habitantes de Bogotá. Estratégias que levem ao aumento da proteção contra RUV nesse grupo populacional devem ser reforçadas.

High Doses of Drugs Extensively Metabolized by CYP3A4 Were Needed to Reach Therapeutic Concentrations in Two Patients Taking Inducers / Dos pacientes que tomaban inductores necesitaron dosis altas de medicamentos metabolizados en gran medida por el CYP3A4 para alcanzar concentraciones terapéuticas

ABSTRACT Introduction: In the last 20 years of clinical practice, the senior author has identified these 2 rare cases in which the patients needed extremely high doses of drugs metabolized by CYP3A4 to reach and maintain serum therapeutic concentrations. Methods: The high metabolic ability of these 2 patients was demonstrated by the low concentration-to-dose ratios (C/D ratios) of several drugs metabolized by CYP3A4. Results: Case 1 was characterized by a history of high carbamazepine doses (up to 2,000 mg/day) and needed 170 mg/day of diazepam in 2 days to cooperate with dental cleaning. The high activity of the CYP3A4 isoenzyme was manifested by fast metabolism for quetiapine and diazepam, which took more than 1 year to normalize after the inducer, phenytoin, was stopped. Case 2 was also very sensitive to CYP3A4 inducers as indicated by very low C/D ratios for carbamazepine, risperidone and paliperidone. The carbamazepine (2,800 mg/day) and risperidone (20 mg/day) dosages for this second patient are the highest doses ever seen for these drugs by the senior author. Risperidone induction appeared to last for many months and metabolism was definitively normal 3 years after stopping carbamazepine. On the other hand, olanzapine C/D ratios were normal for induction. Conclusions: The literature has never described similar cases of very high doses of drugs metabolized by CYP3A4. We speculate that these 2 patients may have unusual genetic profiles at the nuclear receptor levels; these receptors regulate induction of drugs.

RESUMEN Introducción: Durante sus últimos 20 años de práctica, el último autor ha identificado estos 2 infrecuentes casos que necesitaban dosis extremadamente altas de medicaciones metabolizadas por el CYP3A4 para alcanzar y mantener concentraciones séricas terapéuticas. Métodos: La gran capacidad metabólica de estos 2 pacientes se demostró por los bajos cocientes entre concentración y dosis (C/D) de varias medicaciones metabolizadas por el CYP3A4. Resultados: El caso 1 se caracterizaba por una historia de altas dosis de carbamazepina (1.500 mg/día) y la necesidad de tomar 170 mg de diazepam en 2 días para facilitar una limpieza dental. La gran actividad de la isoenzima CYP3A4 se manifestó por una gran capacidad metabólica de quetiapina y diazepam, cuya normalización tardó más de 1 año tras la toma de un inductor, fenitoína. El caso 2 tambien era muy sensible a la inducción, lo cual se demuestra por los bajos cocientes C/D de carbamazepina, risperidona y paliperidona. Las dosis de carbamazepina (2.800 mg/día) y risperidona (20 mg/día) de este segundo paciente son las más altas nunca vistas por el último autor. La inducción de risperidona duró muchos meses y su metabolismo era normal 3 años después de interrumpir la carbamazepina. El cociente C/D de olanzapina era normal para la inducción. Conclusiones: Nunca se habían descrito casos similares de dosis tan altas de medicaciones metabolizadas por el CYP3A4. Se especula con que estos pacientes podrían tener unos perfiles genéticos inusuales en los receptores nucleares que regulan la inducción de medicamentos.

Artificial Intelligence. How Artificial is Urology Practice Becoming? / Inteligencia artificial. ¿Qué tan artificial se está volviendo la práctica urológica?

The evolution of medical practice has changed from the most basic tool of patient interrogation to current technologies of artificial intelligence and machine-learning driven practice.[1] Traditionally at the forefront of technology, once again urology has an opportunity to embrace and lead in these rapid changes in medical practice.

Diagnóstico terapéutico para la atención de pacientes con caries dental / Therapeutic diagnosis for the care of patients with dental caries

La caries dental es tan antigua como la humanidad misma, es considerada por la Organización Mundial de la Salud como el primer problema de salud bucal, su incremento se ha asociado al desarrollo social y a las variaciones en los hábitos dietéticos de las poblaciones. En estudios realizados en los últimos años, se ha determinado una tendencia a la disminución de esta enfermedad. El problema fundamental en el diagnóstico y tratamiento de la caries dental es la decisión de cuándo y cómo obturar un diente afectado por caries. El objetivo primario es ampliar la visión sobre las posibilidades terapéuticas y profundizar en los conocimientos teóricos y prácticos sobre los tratamientos preventivos, curativos no invasivos e invasivos utilizados contra la caries dental. Se realizó una revisión bibliográfica de textos impresos y búsqueda en internet sobre caries dental, frecuencia y conducta adecuada por parte los estomatólogos generales. Se concluye que todo estomatólogo general, debe conocer la importancia de la promoción y la prevención permanente en los pacientes para evitar las caries dentales, así como las indicaciones, técnica de empleo y los requisitos para aplicar en la práctica diaria, los materiales restaurativos(AU)

Dental caries is as old as human race, it is considered by the World Health Organization as the first oral health problem, its increase has been associated with social development and variations in dietary habits of populations. In studies carried out in recent years, a tendency to decrease this disease has been determined. The fundamental problem in the diagnosis and treatment of dental caries is the decision of when and how to seal a tooth affected by caries. The primary objective is to broaden the vision of the therapeutic possibilities and to deepen the theoretical and practical knowledge about preventive, non-invasive and invasive curative treatments used against dental caries. A literature review of printed texts and internet search on dental caries, frequency and appropriate behavior of general stomatologists was carried out. It is concluded that every general stomatologist should know the importance of the promotion and permanent prevention in patients to avoid tooth decay, as well as the indications, technique of use and requirements to apply restorative materials in daily practice.

Significado de la sexualidad y el orgasmo en un grupo de mujeres profesionales / Meaning of Sexuality and Orgasm in Professional Women

Introducción La salud sexual se considera uno de los elementos de bienestar y salud general en el ser humano. Múltiples estudios asocian calidad de vida y salud corporal con la actividad sexual. Objetivo Comprender el significado de la sexualidad y el orgasmo en un grupo de mujeres profesionales. Materiales y Métodos Se realizó una investigación cualitativa con enfoque etnográfico, en la que participaron 15 mujeres profesionales con vínculo a la vida universitaria. La edad del grupo fue entre 26­58 años. Se utilizó una entrevista estructurada que permitió conocer y describir sus prácticas de sexualidad. La investigación está inscrita y aprobada en el Sistema Universitario de la Universidad de Antioquia. Resultados Las 15 entrevistadas manifestaron tener vida sexual activa y expresaron los siguientes ejes temáticos: La sexualidad significó la construcción y el reconocimiento del sí mismo para refinar el encuentro con el otro; es un espacio de relacionamiento que requiere del entendimiento mutuo, no limitado a lo coital; compartir las creencias, valores y rituales con sus parejas da una estabilidad que se traduce en una sexualidad sana. El sexo en pareja es un ejercicio de relación que genera alegría, placer y ganas de vivir. La sexualidad significa un encuentro permanente con el otro, donde la convivencia, la armonía, la posibilidad de crecer, es lo que se prodiga, como deseo y pasión; ese vínculo de pareja es un tipo de conexión que no se equipara con otras relaciones. La sexualidad es parte de la salud, es algo natural e indispensable en la vida de las personas. El orgasmo es definido como un momento de supremo placer liberador de energía, que produce éxtasis, un momento culmen donde parece juntarse la vida y la muerte. No es el fin último, ni es tan satisfactorio como el vínculo que se genera en los encuentros; el orgasmo no lo es todo y no siempre se vive con la misma intensidad. Conclusión Para las mujeres entrevistadas sexualidad implica salud, bienestar y encuentro con el otro. El orgasmo no es una condición indispensable para gozar la actividad sexual.

Introduction Sexual health is considered one of the elements of wellbeing and general health in the human being. Multiple studies associate quality of life and bodily health with sexual activity. Objective Understand the meaning of sexuality and orgasm in professional women. Materials and Methods A qualitative research with ethnographic approach was designed, in which 15 professional women with links to university life participated. The age of the group was between 26­58 years. A structured interview was used which enabled them to know and describe their sexuality practices.. The research is registered and approved in the University System of the University of Antioquia. Results The 15 interviewees had active sex life and expressed the following thematic axes: Sexuality meant the construction and recognition of the self to refine the encounter with the other; is a space of relationship that requires mutual understanding, which is not limited to the coital; sharing beliefs, values and rituals with their partners gives stability that translates into a healthy sexuality. Sex as a couple is an exercise in relationship that generates joy, pleasure, energy and the desire to live. Sexuality means a permanent encounter with the other, where coexistence, harmony, the possibility of growing, is what is lavished, as desire and passion; this link is a type of connection that is not equated with other relationships. Sexuality is part of health, is something natural and indispensable in the lives of people, which is altered by desires and concerns. Eroticism has an emotional and emotional component that makes pleasure possible. The orgasm is defined by the participants as a moment of supreme energy-releasing pleasure, which produces ecstasy, a culminating moment where life and death seem to gather together, a sensation of maximum fullness, of climax. Orgasm is not the ultimate goal, nor is it as satisfying as the bond generated in encounters; orgasm is not everything and not always lived with the same intensity. Conclusion For women interviewed sexuality implies health, well-being and encounter with the other. Orgasm is not an indispensable condition to enjoy sexual activity.

Evaluación de la eficacia de fosfomicina trometamol y gentamicina en la profilaxis de la cistoscopia flexible tras el estudio de los patógenos de nuestro entorno / Evaluation of the Efficacy of Fosfomycin Trometamol and Gentamicin in the Prophylaxis of Flexible Cystoscopy after the Study of Microflora in our Environment

Objetivo Optimizar el uso de antibióticos en la profilaxis de la cistoscopia flexible estudiando los patógenos más frecuentes de nuestro entorno y eligiendo el antibiótico según sus antibiogramas. Métodos Desde Enero del 2015 hasta Noviembre del 2015, se analizaron los urinocultivos de nuestra área, se eligió el antibiótico en función a su sensibilidad frente a los patógenos más frecuentes y se comparó con un antibiótico de amplio espectro. Desde Enero del 2016 hasta Diciembre del 2016, se realizaron las cistoscopias agrupando a los pacientes en: Grupo 1: Pacientes sin profilaxis; Grupo 2: Profilaxis con Gentamicina 240 mg; Grupo 3: Profilaxis con antibiótico seleccionado. Como variables principales se definieron la presencia de bacteriuria asintomática e ITU tras la realización de la cistoscopia flexible. Resultados Se analizaron 8.530 urinocultivos y se eligió la Fosfomicina Trometamol 3 gr como profilaxis. Se realizaron 244 cistoscopias distribuidas: Grupo 1: 86 (35%); Grupo 2: 72 (30%); Grupo 3: 86 (35%). Se detectó bacteriuria asintomática postcistoscopia en 6 pacientes (2,5%) en el Grupo 1, 7 pacientes (2,9%) en el grupo 2 y 5 pacientes (2%) en el grupo 3 no presentando diferencias significativas (p 0.120). Desarrollaron ITUs postcistoscopia 1 paciente (0,4%) en el Grupo 1, 5 pacientes (2%) en el Grupo 2 y 2 pacientes (0,8%) en el Grupo 3 sin diferencias significativas (p 0.105). Conclusión La Fosfomicina es tan efectiva como la Gentamicina en la profilaxis de la cistoscopia. Para un uso correcto de los antibióticos, se recomienda el estudio de los patógenos de nuestro entorno.

Objective To optimize the use of antibiotics in the prophylaxis of flexible cystoscopy by studying the most frequent pathogens in our environment and choosing the antibiotic according to its antibiograms. Method Between January 2015 and November 2015, urine cultures were analyzed in our area, the antibiotic was chosen based on its sensitivity to the most frequent pathogens and compared with a broad spectrum antibiotic. From January 2016 to December 2016, cystoscopy was performed by grouping patients into: Group 1 - Patients without prophylaxis, Group 2 - Prophylaxis with 240 mg gentamicin, Group 3 - Selected antibiotic prophylaxis. The main variables were the presence of asymptomatic bacteriuria and UTI after flexible cystoscopy. Results 8530 urine cultures were analyzed and 3 g of fosfomycin trometamol was chosen as the prophylactic. There were 244 cystoscopies: Group 1: 86 (35%); Group 2: 72 (30%); Group 3: 86 (35%). Asymptomatic bacteriuria was detected in 6 patients (2.5%) in Group 1, 7 patients (2.9%) in Group 2 and 5 patients (2%) in Group 3, showing no significant differences (p = 0.120). Post-cystoscopic urinary tract infection developed in 1 patient (0.4%) in Group 1, 5 patients (2%) in Group 2 and 2 patients (0.8%) in Group 3, which showed no significant differences (p 0.105). Conclusion Fosfomycin is as effective as Gentamicin as a prophylactic in cystoscopy. The study of the pathogens in each environment is recommended to correctly prescribe the antibiotic.

Background correction in rapid scan EPR spectroscopy.

In rapid scan EPR the rapidly-changing magnetic field induces a background signal that may be larger than the EPR signal. A method has been developed to correct for that background signal by acquiring two sets of data, denoted as scan 1 and scan 2. In scan 2 the external field B0 is reversed and the data acquisition trigger is offset by one half cycle of the scan field relative to the settings used in scan 1. For data acquired with a cross-loop resonator subtraction of scan 2 from scan 1 cancels the background and enhances the EPR signal. Experiments were performed at an EPR frequency of about 258 MHz, which is in the range that is commonly used for in vivo imaging. Samples include nitroxide radicals, a trityl radical, a dinitroxide, and a nitroxide in the presence of a magnetic field gradient. This method has the advantage that no assumption is made about the shape of the background signal, and it provides an approach to automating the background correction.

¿Cómo contribuir? / How can We Contribute?

El tema de las alteraciones mentales en la infancia está diagnosticado desde el estudio nacional realizado ya hace más de 10 años, y no hay propuestas ni políticas en tal sentido. Solo 3 posgrados de psiquiatría infantil en Colombia no serán respuesta a esta situación; escasos programas de promoción de salud, y prevención de alteraciones en la niñez se realizan, y las consecuencias han llegado a extremos en las cuales estamos observando escaso desarrollo de estilos de vida sanos, con adquisición de valores que permitan luego en la vida adulta una mejor capacidad adaptativa, una mejor tolerancia a la frustración y un mejor funcionamiento con capacidad de enfrentar conflictos. Es tan dramática la situación que las conductas suicidas han empezado a proliferar en este grupo etéreo.

The issue of mental disorders in childhood has been diagnosed from the national study carried out more than 10 years ago, and there are no proposals or policies in this regard. Only 3 postgraduate programs in child psychiatry in Colombia will not be an answer to this situation; Few programs for health promotion and prevention of alterations in childhood are carried out, and the consequences have reached extremes in which we are observing little development of healthy lifestyles, with the acquisition of values ​​that allow later in adult life a better adaptive capacity, a better tolerance to frustration and a better functioning with the capacity to face conflicts. The situation is so dramatic that suicidal behaviors have begun to proliferate in this ethereal group.

Progressive Cribriform and Zosteriform Hyperpigmentation: A Case Series and Review of the Literature / 대한피부과학회지

Progressive cribriform and zosteriform hyperpigmentation (PCZH) is a distinctive pigmentary disorder observed along the lines of Blaschko. Clinically, the lesions appear as uniformly tan, cribriform macular hyperpigmentation with a zosteriform distribution, without a history of rash, injury, inflammation, or other associated cutaneous or internal abnormalities. Histopathological specimens show increased melanin pigmentation in the basal cell layer with a complete absence of nevus cells. We report 8 cases of PCZH and review the literature on this peculiar disorder.

Comparación cualitativa de diferentes medios de cultivo y condiciones de siembra para el aislamiento primario de Helicobacter pylori a partir de biopsia gástrica obtenidas de pacientes dispépticos / Qualitative comparison between different cultures media and conditions for primary isolation of Helicobacter pylori obtain of gastric biopsies of dyspeptic patients

El cultivo de Helicobacter pylori es indispensable para estudiar la sensibilidad de las cepas a distintos agentes antimicrobianos, realizar pruebas diagnósticas y evaluar su toxicidad y virulencia, además, preservar los aislamientos con fines inve stigati vos futuros. Bajo condiciones óptimas, el cultivo posee una sensibilidad cercana al 90% y una especificad de 100%, pero las tasas de aislamiento de los individuos infectados pueden variar entre 23,5% a 97%, dependiendo de un número de factores como los componentes del medio de cultivo, el transporte de las biopsias, automedicación con inhibidores de bomba de protones/antibióticos y los métodos de toma de la biopsia. Por esta razón, el objetivo del estudio de la investigación fue comparar diferentes medios de cultivo y las condiciones de transporte, manejo y procesamiento de las biopsias para el aislamiento de Helicobacter pylori. Se analizaron 27 biopsias gástricas de antro y cuerpo del estómago obtenidas de pacientes dispépticos; fueron sembradas por duplicado en tres medios de cultivo diferentes designados como A, B y C y bajo dos condiciones de siembra de la biopsia por Impresión (Touch) y por maceración, el transporte de las biopsias se realizó en medio de transporte con y sin suplementos y antibióticos. Los resultados de la tasa de recuperación en el medio de cultivo A fue 59,2%, en el B fue 37% y en el C fue de 18,5%. Tanto el medio A como en el B se evidenció un crecimiento vigoroso de H. pylori, caso contrario en el medio de cultivo C, en donde las colonias no se observaron tan brillantes y evidentes. La siembra por maceración en laboratorio y el medio de cultivo A proporcionaron las mejores condiciones para la recuperación de H. pylori.

Helicobacter pylori cultivation is essential to study the sensitivity of isolates to various antimicrobial agents, diagnostic testing and evaluating toxicity and virulence also preserve isolates with future research purposes. Under optimum conditions, cultivation has a sensitivity approaching 90% and a specificity of 100%, but the rates of isolation of infected individuals may vary between 23.5% to 97%, depending on a number of factors such as components culture medium, transporting biopsies, self-medication with proton-pump inhibitor / antibiotics and methods of making the biopsy. For this reason, the aim of the research study was to compare different culture media and conditions of transport, handling and processing of biopsies for the isolation of Helicobacter pylori. 27 antrum's gastric biopsies and body 's gastric biopsies obtained from dyspeptic patients were analyzed; were seeded for duplicate on three different culture's mediums designated as A, B and C and under two culture's conditions. The biosies were seeded for Printing (Touch) in the endoscopy unit and maceration in the microbiology's laboratory. The biopsies were transported in transport medium with and without supplements and antibiotics. The results of the recovery rate in the culture medium A was 59.2%, in the B was 37% and in the C was 18.5%. In the culture médium A and B were observed a vigorous growth of H. pylori, otherwise in the culture medium C, the colonies were not observed as bright. Seeding by maceration in laboratory culture medium and A provided the best conditions for recovery of H. pylori.

Amyloidosis in a Whooper swan (Cygnus cygnus)

Two Whooper swan (Cygnus cygnus) died after suffering from pododermatitis, lethargy, and ataxia; necropsy was performed. Grossly, the liver was swollen and firm. The kidney and spleen were also enlarged and a pale tan color. On histopathologic examination with Congo red staining, amyloidosis was noted in liver, spleen, and kidney. In addition, marked osseous metaplasia was present in the liver. Based on these results, systemic amyloidosis involving liver, spleen, and kidney with osseous metaplasia in the liver was diagnosed. Study results indicate that an inflammatory reaction associated with pododermatitis had a role in the amyloidosis in this particular case.

Tanshinone IIA Protects Endothelial Cells from H₂O₂-Induced Injuries via PXR Activation

Tanshinone IIA (Tan IIA) is a pharmacologically active substance extracted from the rhizome of Salvia miltiorrhiza Bunge (also known as the Chinese herb Danshen), and is widely used to treat atherosclerosis. The pregnane X receptor (PXR) is a nuclear receptor that is a key regulator of xenobiotic and endobiotic detoxification. Tan IIA is an efficacious PXR agonist that has a potential protective effect on endothelial injuries induced by xenobiotics and endobiotics via PXR activation. Previously numerous studies have demonstrated the possible effects of Tan IIA on human umbilical vein endothelial cells, but the further mechanism for its exerts the protective effect is not well established. To study the protective effects of Tan IIA against hydrogen peroxide (H₂O₂) in human umbilical vein endothelial cells (HUVECs), we pretreated cells with or without different concentrations of Tan IIA for 24 h, then exposed the cells to 400 μM H₂O₂ for another 3 h. Therefore, our data strongly suggests that Tan IIA may lead to increased regeneration of glutathione (GSH) from the glutathione disulfide (GSSG) produced during the GSH peroxidase-catalyzed decomposition of H₂O₂ in HUVECs, and the PXR plays a significant role in this process. Tan IIA may also exert protective effects against H₂O₂-induced apoptosis through the mitochondrial apoptosis pathway associated with the participation of PXR. Tan IIA protected HUVECs from inflammatory mediators triggered by H₂O₂ via PXR activation. In conclusion, Tan IIA protected HUVECs against H₂O₂-induced cell injury through PXR-dependent mechanisms.

Trastorno explosivo intermitente: un diagnóstico controversial / Intermittent Explosive Disorder: A Controversial Diagnosis

Introducción: El trastorno explosivo intermitente (TEI) es un trastorno externalizante que se caracteriza por episodios recurrentes de agresividad. Aunque es un trastorno descrito desde hace varias décadas, y que ocasiona consecuencias personales y sociales, la producción bibliográfica sobre este tema es sorprendentemente escasa. Objetivo: Realizar una conceptualización sobre el TEI a partir de la revisión y el análisis bibliométrico de los artículos científicos disponibles. Material y métodos: Se realizó una búsqueda en las bases de datos con los términos en inglés intermittent explosive disorder, impulse control disorders [MeSH] en combinación con otros términos. Se realizó un análisis bibliométrico utilizando los datos obtenidos en el buscador GoPubMed®. Discusión: La prevalencia del TEI oscila entre el 1,4 y el 7%, con mayor frecuencia durante la adolescencia media, y con más repercusiones notorias en varones que en mujeres. El núcleo psicopatológico del TEI es la conducta agresiva impulsiva que se presenta en forma de «ataques¼ que ocurren en respuesta a un estímulo precipitante menor. Las publicaciones científicas sobre el TEI son pocas, relativamente recientes, y la mayoría de Estados Unidos (56,56%), en cabeza un solo autor. Este hecho resalta la necesidad de repetir los hallazgos descritos sobre el TEI para demostrar validez y confiabilidad de sus criterios diagnósticos. Es posible que las dudas sobre la existencia del diagnóstico estén conduciendo a que se publique tan escasamente sobre el TEI. Conclusiones: Los estudios disponibles sobre TEI permiten caracterizar un grupo de sujetos con episodios de agresividad impulsiva, pero esta descripción requiere que se repita en latitudes diferentes.

Introduction: Intermittent explosive disorder (IED) is aan externalizing externalising disorder characterized characterised by recurrent aggression episodes. Even though this disorder was described several decades ago, and it carries personal and social consequences, there is little in the medical scientific literature on this. bibliographic production about it is scanty. Objective: To perform a conceptualization conceptualisation of this disorder, through the review and bibliometric analysis of the available scientific articles. Material and methods: A search was performed in databases with the english English terms intermittent explosive disorder, impulse disorders control [MeSH], in combination with other terms. A bibliometric analysis in the GoPubMed® search engineer was also performed using all data obtained in the search. was also perfomed. Discussion: IED prevalence ranges from 1.4% to 7%, it presents more frequently during middle adolescence, and with more noticeable repercussions in men males than in womenfemales. The psychopathological core of IED is the impulsive aggressive behaviour that presents in the form of «attacks¼ that occurs in response to a lower precipitating stimulus. Scientific publications about IED are few and relatively recent, and the vast majority is provided bycomes from the United States (56.56%), and headed by a single author. This fact highlights the need to replicate the findings described about the IED in order to demonstrate the validity and reliability of its diagnostic criteria. It is possible that doubts about the existence of a diagnosis lead have led to such a scant literature about the IED. Conclusions: Available studies about IED allow have allowed characterizing a group of subjects with episodes of impulsive aggression to be characterised, but this description requires replication in different latitudes needs to be repeated in different areas.

Immunomodulatory effect of captopril and local irradiation on myeloid-derived suppressor cells

PURPOSE: This study is to investigate the effect of captopril when combined with irradiation. MATERIALS AND METHODS: 4T1 (mouse mammary carcinoma) cells were injected in the right hind leg of Balb/c mice. Mice were randomized to four groups; control (group 1), captopril-treated (group 2), irradiated (group 3), irradiated and captopril-treated concurrently (group 4). Captopril was administered by intraperitoneal injection (10 mg/kg) daily and irradiation was delivered on the tumor-bearing leg for 15 Gy in 3 fractions. Surface markers of splenic neutrophils (G-MDSCs) and intratumoral neutrophils (tumor-associated neutrophils [TANs]) were assessed using flow cytometry and expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1 alpha (HIF-1α) of tumor was evaluated by immunohistochemical (IHC) staining. RESULTS: The mean tumor volumes (±standard error) at the 15th day after randomization were 1,382.0 (±201.2) mm³ (group 1), 559.9 (±67.8) mm³ (group 3), and 370.5 (± 48.1) mm³ (group 4), respectively. For G-MDSCs, irradiation reversed decreased expression of CD101 from tumor-bearing mice, and additional increase of CD101 expression was induced by captopril administration. Similar tendency was observed in TANs. The expression of tumor-necrosis factor-associated molecules, CD120 and CD137, are increased by irradiation in both G-MDSCs and TANs. Further increment was observed by captopril except CD120 in TANs. For IHC staining, VEGF and HIF-1α positivity in tumor cells were decreased when treated with captopril. CONCLUSION: Captopril is suggested to have additional effect when combined to irradiation in a murine tumor model by modulation of MDSCs and angiogenesis.

Anti-cancer effects of cerium oxide nanoparticles and its intracellular redox activity.

Data on medical applications of cerium oxide nanoparticles CeO2 (CONP) are promising, yet information regarding their action in cells is incomplete and there are conflicting reports about in vitro toxicity. Herein, we have studied cytotoxic effect of CONP in several cancer and normal cell lines and their potential to change intracellular redox status. The IC50 was achieved only in two of eight tested cell lines, melanoma 518A2 and colorectal adenocarcinoma HT-29. Self-propagating room temperature method was applied to produce CONP with an average crystalline size of 4 nm. The results confirmed presence of Ce(3+) and O(2-) vacancies. The induction of cell death by CONP and the production of reactive oxygen species (ROS) were analyzed by flow-cytometry. Free radicals related antioxidant capacity of the cells was studied by the reduction of stable free radical TEMPONE using electron spin resonance spectroscopy. CONP showed low or moderate cytotoxicity in cancer cell lines: adenocarcinoma DLD1 and multi-drug resistant DLD1-TxR, non-small cell lung carcinoma NCI-H460 and multi-drug resistant NCI-H460/R, while normal cell lines (keratinocytes HaCaT, lung fetal fibroblasts MRC-5) were insensitive. The most sensitive were 518A2 melanoma and HT-29 colorectal adenocarcinoma cell lines, with the IC50 values being between 100 and 200 µM. Decreased rate of TEMPONE reduction and increased production of certain ROS species (peroxynitrite and hydrogen peroxide anion) indicates that free radical metabolism, thus redox status was changed, and antioxidant capacity damaged in the CONP treated 518A2 and HT-29 cells. In conclusion, changes in intracellular redox status induced by CONP are partly attributed to the prooxidant activity of the nanoparticles. Further, ROS induced cell damages might eventually lead to the cell death. However, low inhibitory potential of CONP in the other human cell lines tested indicates that CONP may be safe for human usage in industry and medicine.

Study of nanostructural organization of ionic liquids by electron paramagnetic resonance spectroscopy.

The X-band electron paramagnetic resonance spectroscopy (EPR) of a stable, spherical nitroxide spin probe, perdeuterated 2,2,6,6-tetramethyl-4-oxopiperidine-1-oxyl (pDTO) has been used to study the nanostructural organization of a series of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids (ILs) with alkyl chain lengths from two to eight carbons. By employing nonlinear least-squares fitting of the EPR spectra, we have obtained values of the rotational correlation time and hyperfine coupling splitting of pDTO to high precision. The rotational correlation time of pDTO in ILs and squalane, a viscous alkane, can be fit very well to a power law functionality with a singular temperature, which often describes a number of physical quantities measured in supercooled liquids. The viscosity of the ILs and squalane, taken from the literature, can also be fit to the same power law expression, which means that the rotational correlation times and the ionic liquid viscosities have similar functional dependence on temperature. The apparent activation energy of both the rotational correlation time of pDTO and the viscous flow of ILs and squalane increases with decreasing temperature; in other words, they exhibit strong non-Arrhenius behavior. The rotational correlation time of pDTO as a function of η/T, where η is the shear viscosity and T is the temperature, is well described by the Stokes-Einstein-Debye (SED) law, while the hydrodynamic probe radii are solvent dependent and are smaller than the geometric radius of the probe. The temperature dependence of hyperfine coupling splitting is the same in all four ionic liquids. The value of the hyperfine coupling splitting starts decreasing with increasing alkyl chain length in the ionic liquids in which the number of carbons in the alkyl chain is greater than four. This decrease together with the decrease in the hydrodynamic radius of the probe indicates a possible existence of nonpolar nanodomains.

Embryonal rhabdomyosarcoma in the abdominal cavity of an aged Sprague-Dawley rat / 대한수의학회지

We report a spontaneous embryonal rhabdomyosarcoma in the abdominal cavity of an aged (88-week-old) Sprague-Dawley rat. The animal had a firm lobulated 5 x 5 x 4.5 cm mass in the abdominal cavity that was whitish to tan with necrotic and hemorrhagic plaques. Microscopically, the mass contained nodules with spindle or globoid shaped neoplastic cells with abundant eosinophilic cytoplasm and round or elongated nuclei mixed with other spindle cells with a filamentous appearance and scanty cytoplasm. Multinucleated cells and cross-striations were also observed. The neoplastic cells were positive for vimentin, desmin, and alpha-smooth muscle actin, especially the small spindle cells.