Chemical composition, antioxidant and antimicrobial activities of essential oil from the aerial parts of Chuquiraga arcuataHarling grown in the highlands of Ecuador / Composición química, actividades antioxidantes y antimicrobianas del aceite esencial de las partes aéreas de Chuquiraga arcuataHarling cultivado en las tierras altas del Ecuador

Thechemical composition, antioxidant and antimicrobial activities of the essential oil from aerial parts (leaves and flowers) of Chuquiraga arcuataHarling grown in the Ecuadorian Andes were studied. One hundred and twenty-six compounds were identified in the essential oil. Monoterpene hydrocarbons (45.8%) and oxygenated monoterpenes (44.1%) had the major percentages. The most abundant compounds were camphor (21.6%), myrcene (19.5%), and 1,8-cineole (13.4%). Antioxidant activity was examined using DPPH, ABTS,and FRAP assays. The essential oil had a moderate scavenging effect and reduction of ferric ion capacity through FRAP assay. Antimicrobial activity of the essential oil was observed against four pathogenic bacteria and a fungus. The essential oil exhibited activity against all microorganism strains under test, particularly against Candida albicansand Staphylococcus aureuswith MICs of 2.43-12.10 µg/mL.

Se estudió la composición química, actividades antioxidantes y antimicrobianas del aceite esencial procedente de las partes aérea (hojas y flores) de Chuquiraga arcuataHarling cultivadas en los Andes ecuatorianos. Se identificaron 126 compuestos en el aceite esencial. Los hidrocarburos monoterpénicos (45,8%) y los monoterpenos oxigenados (44,1%) tuvieron el mayor porcentaje. Los compuestos más abundantes fueron alcanfor (21,6%), mirceno (19,5%) y 1,8-cineol (13,4%). La actividadantioxidante se examinó mediante ensayos DPPH, ABTS y FRAP. El aceite esencial tuvo un efecto eliminador moderado y una reducción de la capacidad de iones férricos mediante el ensayo FRAP. Se observó actividad antimicrobiana del aceite esencial contra cuatro bacterias y un hongo patógenos. El aceite esencial mostró actividad contra todas las cepas de microorganismos bajo prueba, particularmente contra Candida albicansy Staphylococcus aureuscon CMI de 2,43-12,10 µg/mL.

Clinical safety and efficacy of microwave ablation for small renal masses

ABSTRACT Purpose: CT-guided MWA is a safe and effective tool that should be utilized in the treatment of small renal masses (SRMs). We aim to clarify the utility of CT-guided MWA by examining patient outcomes such as recurrence, treatment success, changes in renal function, and complications. Methods: A retrospective review of consecutive patients with SRMs who underwent same day renal mass biopsy (RMB) and CT-guided MWA between 2015 and 2022 was performed. Treatment safety was assessed by 30-day complications according to the Clavien-Dindo system and change in eGFR >30 days post-procedure. Treatment efficacy was defined by local recurrence and incomplete treatment rates and calculated using the Kaplan-Meier method. Results: A total of 108 renal masses were found in 104 patients. The overall complication rate was 7.4% (8/108), of which 4 were major complications (3.7%). For those with renal function available >30 days post ablation, the median eGFR was 47.2 (IQR: 36.0, 57), compared to 52.3 (IQR: 43.7, 61.5) pre-ablation, p<0.0001. 5-year local recurrence free survival was 86%. Among those with biopsy proven malignancy (n= 66), there were five local recurrences (7.54%) occurring at a median of 25.1 months (IQR 19.9, 36.2) and one case (1.5%) of incomplete treatment. Conclusions: As the medical field continues to evolve towards less invasive interventions, MWA offers a valuable tool in the management of renal masses. With low major complication and recurrence rates, our findings support the utility of CT-guided MWA as a tool for treatment of SRMs.

Fasting glucose: a cardiometabolic indicator for subclinical atherosclerosis on excess weight adolescents

Abstract Objective: To build a model based on cardiometabolic indicators that allow the identification of overweight adolescents at higher risk of subclinical atherosclerotic disease (SAD). Methods: Cross-sectional study involving 161 adolescents with a body mass index ≥ + 1 z-Score, aged 10 to 19 years. Carotid intima-media complex thickness (IMT) was evaluated using ultrasound to assess subclinical atherosclerotic disease. Cardiometabolic indicators evaluated included nutritional status, central adiposity, blood pressure, lipidic profile, glycemic profile, as well as age and sex. Data was presented using measures of central tendency and dispersion, as well as absolute and relative frequency. The relationship between IMT measurement (outcome variable) and other variables (independent variables) was assessed using Pearson or Spearman correlation, followed by multiple regression modeling with Gamma distribution to analyze predictors of IMT. Statistical analysis was performed using SPSS and R software, considering a significance level of 5 %. Results: It was observed that 23.7 % had Carotid thickening, and the prevalence of abnormal fasting glucose was the lowest. Age and fasting glucose were identified as predictors of IMT increase, with IMT decreasing with age by approximately 1 % per year and increasing with glucose by around 0.24 % per mg/dL. Conclusion: The adolescent at higher risk is younger with higher fasting glycemia levels.

Frequency of perfume in 398 children's cosmetics

Abstract Objective: Perfume (Parfum) or fragrance is a natural or synthetic cosmetic ingredient added to emit a pleasant aroma or to improve the odor of a cosmetic formula. It is a mixture of substances, not revealed by the manufacturer, which may contain ingredients with allergenic potential, endocrine disruptors, and other possible harmful effects on human health. This study aims to analyze children's cosmetics labels to assess the presence of Perfume. Methods: The researchers randomly visited points of sale in Curitiba, the capital of a southern Brazilian state; in order to catalog the largest possible number of children's cosmetics items. Results: 398 children's cosmetics were analyzed and found Parfum on 295 (74.1 %) of the labels, including 90.4 and 79,1 % of the shampoos and wet wipes, respectively. Conclusion: Exposure of children's skin to fragrances can lead to local side effects such as allergies, but also to systemic effects, and the lack of knowledge of the general population and health professionals about its possible deleterious effects emphasizes the importance of changes in the regulation of cosmetics aiming to reduce the use of this ingredient.

Histiocitosis de células de Langerhans en un paciente con lesión perianal. Caso clínico / Langerhans cell histiocytosis in a patient with perianal lesion. A case report

La histiocitosis de células de Langerhans es una expresión de células dendríticas mieloides, asociada a un componente inflamatorio significativo y compromiso sistémico variado. La edad más frecuente de presentación es entre 1 y 4 años, y predomina en el sexo masculino. Se comunica el caso de un niño de 5 años de edad cuya forma de presentación fue una lesión granulomatosa con fístula perianal, afectación pulmonar y de oído externo. El abordaje interdisciplinario permitió llegar al diagnóstico, realizar las intervenciones necesarias e iniciar el tratamiento adecuado.

Langerhans cell histiocytosis is an expression of myeloid dendritic cells, associated with a significant inflammatory component and varied systemic involvement. The most common age at presentation is between 1 and 4 years, and it prevails among male subjects. Here we describe the case of a 5-year-old boy who presented with a granulomatous lesion with perianal fistula and lung and external ear involvement. An interdisciplinary approach helped to make a diagnosis, provide the necessary interventions, and start an adequate treatment.

Aceite esencial de hojas de Minthostachys mollis [HBK] Griseb. del Ecuador: extracción, composición química, capacidad antioxidante y actividad antimicrobiana / Essential oil of Minthostachys mollis [HBK] Griseb. leaves from Ecuador: extraction, chemical composition, antioxidant capacity and antimicrobial activity

The aim of this study was to optimize by response surface design, the extraction of the leaf essential oil (EO) from Minthostachys mollis [HBK] Griseb., grown in Ecuador, using steam distillation. The factors used were extraction time (XTIE) of 60, 105 and 150 min and plant material/water ratio (XRMA) of 1:3, 1:4 and 1:5. The optimal combination was reached with XRMA 1:5 and XTIE 150 min, obtaining a process yield of 0.67%. The chemical composition of the EO analyzed by GC - MS was determined, where the main compounds were carvacryl acetate (44.01%), carvacrol (16.51%) and menthone (8.20%). The anti oxidant capacity of EO was evaluated using the FRAP and ABTS methodologies, with an IC 50 243.21 µmol Fe 2+ /g and 0.12 mg/mL, respectively. In addition, the antimicrobial activity of EO was found against Pseudomonas aeruginosa , Salmonella enterica , Escherich ia coli and Staphylococcus aureus .

El objetivo del estudio fue optimizar, mediante un diseño de superficie respuesta, la extracción d el aceite esencial (AE) de hojas de Minthostachys mollis [HBK] Griseb. del Ecuador, mediante destilación por arrastre de vapor. Los factores fueron el tiempo de extracción (XTIE) de 60, 105 y 150 min, y relación de material vegetal/ agua destilada (XRMA) d e 1:3, 1:4 y 1:5. La combinación óptima se logró con XTIE 150 min y XRMA 1:5 para un rendimiento de 0,67%. Se determinó la composición química del AE por GC - MS donde los compuestos mayoritarios fueron acetato de carvacrilo (44,01%), carvacrol (16,51%) y me ntona (8,20%). Se evaluó la capacidad antioxidante del AE por las metodologías FRAP y ABTS, con CI 50 de 243,21 µmol Fe 2+ /g y 0,12 mg/mL, respectivamente. Además, se demostró la actividad antimicrobiana contra Pseudomonas aeruginosa , Salmonella enterica , Es cherichia coli y Staphylococcus aureus .

Smoking characteristics and years since quitting smoking of US adults diagnosed with lung and bladder cancer: A national health and nutrition examination survey analysis

ABSTRACT Purpose: Smoking is a recognized risk factor for bladder BC and lung cancer LC. We investigated the enduring risk of BC after smoking cessation using U.S. national survey data. Our analysis focused on comparing characteristics of LC and BC patients, emphasizing smoking status and the latency period from smoking cessation to cancer diagnosis in former smokers. Materials and Methods: We analyzed data from the National Health and Examination Survey (2003-2016), identifying adults with LC or BC history. Smoking status (never, active, former) and the interval between quitting smoking and cancer diagnosis for former smokers were assessed. We reported descriptive statistics using frequencies and percentages for categorical variables and median with interquartile ranges (IQR) for continuous variables. Results: Among LC patients, 8.9% never smoked, 18.9% active smokers, and 72.2% former smokers. Former smokers had a median interval of 8 years (IQR 2-12) between quitting and LC diagnosis, with 88.3% quitting within 0-19 years before diagnosis. For BC patients, 26.8% never smoked, 22.4% were active smokers, and 50.8% former smokers. Former smokers had a median interval of 21 years (IQR 14-33) between quitting and BC diagnosis, with 49.3% quitting within 0-19 years before diagnosis. Conclusions: BC patients exhibit a prolonged latency period between smoking cessation and cancer diagnosis compared to LC patients. Despite smoking status evaluation in microhematuria, current risk stratification models for urothelial cancer do not incorporate it. Our findings emphasize the significance of long-term post-smoking cessation surveillance and advocate for integrating smoking history into future risk stratification guidelines.

Perfil molecular de cáncer de endometrio en mujeres de Bogotá D.C., Colombia

Introducción: El cáncer de endometrio ocupa el sexto lugar en incidencia del cáncer en mujeres. La caracterización molecular de este cáncer permite optimizar la estratificación de riesgo para mejorar el tratamiento de las pacientes. Objetivo: Determinar el perfil molecular TCGA de pacientes con cáncer de endometrio en Bogotá, D.C., Colombia. Método: Estudio descriptivo en una cohorte de pacientes con cáncer de endometrio. Las mutaciones en los exones 9 a 14 del gen POLE fueron identificadas mediante amplificación por reacción en cadena de la polimerasa, seguida de secuenciación Sanger y análisis bioinformático. La expresión de las proteínas MMR y p53 se identificó mediante inmunohistoquímica. Resultados: Se incluyeron 40 pacientes con una mediana de edad de 66 años. El 15% presentaron mutaciones en el dominio exonucleasa de POLE. El 32% de las pacientes que no presentaron mutaciones manifestaron deficiencia en el sistema MMR. El 43,47% de las pacientes sin mutaciones en POLE ni alteración del sistema MMR presentaron alteración de la proteína p53. Conclusiones: La población de cáncer de endometrio analizada presenta un perfil molecular TCGA similar a lo reportado para otras poblaciones.

Introduction: Endometrial cancer ranks sixth in cancer incidence among women. Its molecular characterization allows for a more precise risk stratification with the aim of improving patient treatment. Objective: To determine the TCGA molecular profile of patients with endometrial cancer in Bogota, Colombia. Method: A descriptive study of a cohort of patients with endometrial cancer. The expression of MMR proteins and p53 was identified through immunohistochemistry. Mutations in exons 9 to 14 of the POLE gene were identified through polymerase chain reaction amplification, followed by Sanger sequencing and bioinformatic analysis. Results: Forty patients were included in the study, with a median age of 66 years, 15% of them exhibited mutations in the exonuclease domain of POLE, while 32% of patients without mutations showed deficiency in the MMR system. Forty three percent of patients without mutations in POLE or MMR alterations showed aberrant p53 protein expression. Conclusions: The analyzed population of endometrial cancer presents a TCGA molecular profile similar to that reported for other populations.

Amazônia solidária: educação popular e comunicação em saúde para o fortalecimento da vacinação nos territórios quilombolas, migrantes e ribeirinhos/ / Amazon solidarity: popular education and health communication to strengthen of vaccination in quilombola, migrant and riverside territories

O livro "Amazônia solidária: educação popular e comunicação em saúde para o fortalecimento da vacinação nos territórios quilombolas, migrantes e ribeirinhos" é produto do projeto Amazônia Solidário que teve como objetivo reforçar as estratégias de comunicação sobre a vacina de Covid-19 e outras. O caminho utilizado foi da Educação Permanente nos territórios do Amazonas e do Acre, construindo COM as comunidades e grupos os modos e as linguagens da comunicação de uma política tão maltratada na última gestão governamental. Vimos a potência criativa das comunidades que simplesmente precisou ser ouvida e apoiada na construção dos seus materiais. O projeto nos permitiu amazonizar o pensamento e as estratégias da saúde, significando um estar nos territórios ribeirinhos, quilombolas e dos migrantes na cidade como um modo de refletir sobre uma dimensão diferente da vida. O encontro com outros, com modos diferentes de ser e estar no mundo, numa outra relação entre os humanos e não humanos, na relação com o território das águas e da cidade, nos traz outras formas de viver na Amazônia. Os encontros nos territórios das pessoas, que vivem as relações com as águas, com as memórias, com os encantados, com a ancestralidade, nos fazem perceber que o ser e estar ultrapassa a lógica da subsistência do "viver melhor" e não do "viver bem". Desse modo, desejamos que esse caminho, das águas, das estradas, das trilhas, possa ser fonte inspiradora da gestão das políticas públicas.

Actualización en taxonomía, diagnóstico y tratamiento de las dermatofitosis / Update on taxonomy, diagnosis and treatment

Los dermatofitos son un grupo de hongos responsables de las dermatofitosis o tiñas, pudiendo afectar piel, uñas y pelo. En la actualidad están constituidos por los géneros Epidermophyton, Trichophyton, Microsporum, Arthroderma, Paraphyton, Lophophyton y Nannizzia. El examen microscópico directo y el cultivo en agar siguen siendo el estándar de oro para la identificación, sin embargo, en ocasiones se requiere de la biología molecular para poder corroborar una determinada especie. Dependiendo de la localización, del número de lesiones y de la extensión, el tratamiento de las dermatofitosis puede ser tópico o sistémico. Trichophyton indotineae y T tonsurans pueden expresar resistencia a la terbinafina y azoles, respectivamente.

Dermatophytes are a group of fungi responsible for dermatophytosis or ringworm, which can affect the skin, nails and hair. Currently, they are assembled by the genera Epidermophyton, Trichophyton, Microsporum, Arthroderma, Paraphyton, Lophophyton and Nannizzia. Direct microscopic examination and culture on agar remain the gold standard for identification, however, molecular biology is sometimes required to confirm a certain species. Depending on the location, the number of lesions and the extension, the treatment of dermatophytosis can be topical or systemic. Trichophyton indotineae and T tonsurans can express resistance to terbinafine and azoles, respectively.

La mujer cubana en el levantamiento de pesas: una perspectiva metodológica

Uno de los deportes que más versatilidad representa es el levantamiento de pesas, pues su práctica no solo se reduce al deporte competitivo, sino es una actividad física que desarrolla la capacidad de fuerza, en el resto de los deportes. Esto constituye una realidad que se concreta en el rendimiento deportivo, sin embargo, las féminas que lo practican no cuentan con un tratamiento ajustado a su género, por lo que el objetivo de este trabajo consistió en determinar qué nivel de conocimientos poseen los entrenadores de levantamiento de pesas en Santiago de Cuba, para distribuir las cargas en el equipo femenino de este deporte. Para lograr este propósito, se implementaron métodos del nivel empírico como la observación científica aplicada a las +sesiones de entrenamiento y la encuesta a los entrenadores que atienden a estas atletas. Como resultado del diagnóstico, se declaró que existe un significativo desconocimiento sobre cómo distribuir las cargas en estas pesistas y se carece de una metodología para incrementar este conocimiento y mejorar los resultados competitivos del género femenino, en esta categoría.

Um dos esportes mais versáteis é o levantamento de peso, pois sua prática não se limita apenas ao esporte competitivo, mas é uma atividade física que desenvolve a capacidade de força em outros esportes. Essa é uma realidade que se reflete no desempenho esportivo, no entanto, as mulheres que o praticam não têm um tratamento ajustado ao seu gênero, por isso o objetivo deste estudo foi determinar qual o nível de conhecimento que os treinadores de halterofilismo em Santiago de Cuba têm para distribuir as cargas na equipe feminina desse esporte. Para atingir esse objetivo, foram utilizados métodos empíricos, como a observação científica aplicada às sessões de treinamento e uma pesquisa com os técnicos que treinam essas atletas. Como resultado do diagnóstico, constatou-se que há uma significativa falta de conhecimento sobre como distribuir as cargas nessas levantadoras de peso e que falta uma metodologia para aumentar esse conhecimento e melhorar os resultados competitivos do gênero feminino nessa categoria.

One of the sports that represents the most versatility is weightlifting, since its practice is not only reduced to competitive sports, but is a physical activity that develops strength capacity in the rest of the sports. This constitutes a reality that is reflected in sports performance, however, the women who practice it do not have treatment adjusted to their gender, so the objective of this work was to determine what level of knowledge lifting coaches have of weights in Santiago de Cuba, to distribute the loads in the women's team of this sport. To achieve this purpose, empirical level methods were implemented such as scientific observation applied to training sessions and surveys of coaches who care for these athletes. As a result of the diagnosis, it was declared that there is a significant lack of knowledge about how to distribute the loads in these weightlifters and there is a lack of a methodology to increase this knowledge and improve the competitive results of the female gender, in this category.

Tendencias de mortalidad y hospitalización por aneurismas y disecciones de aorta en México / Mortality and hospitalization trends for aortic aneurysms and dissections in Mexico

Resumen Antecedentes: Existe evidencia escasa en México respecto a la mortalidad y patrones del ingreso hospitalario asociados a aneurismas y disecciones aórticos. Objetivo: Analizar las bases de datos nacionales y describir las características epidemiológicas de diferentes patologías aórticas agudas. Material y métodos: Estudio transversal y observacional de una base de datos retrospectiva, en el que se analizó la mortalidad y hospitalización atribuidas a aneurismas y disecciones aórticos. El análisis estadístico se realizó en Stata 16. Resultados: Se documentaron 6049 muertes en la población general, 2367 hospitalizaciones y 476 muertes intrahospitalarias. Adicionalmente, se encontró una diferencia estadísticamente significativa entre las medias de edad de fallecimiento de la población general (65.5 años) y de los pacientes que murieron en el hospital (64.1 años), p < 0.001. En cuanto a las hospitalizaciones secundarias a aneurisma de aorta abdominal roto, 149 casos fueron evidenciados con una media de edad de 65.6 años; 53 (35.5 %) de estos tenía menos de 65 años, con una media de edad de 47.8 años. Conclusiones: Los reportes epidemiológicos de patología aórtica en México son escasos, por ello la implementación de programas de tamizaje y la detección de patologías aórticas son necesarias para mejorar las disparidades encontradas en este análisis.

Abstract Background: In Mexico, there is a paucity of evidence on mortality and hospitalization patterns associated with aortic aneurysms and dissections. Objective: To analyze national databases and describe the epidemiological characteristics of different acute aortic pathologies. Material and methods: Retrospective, cross-sectional, observational study, in which mortality and hospitalization attributed to aortic aneurysms and dissections were analyzed. Statistical analysis was performed on Stata 16. Results: A total of 6,049 deaths were documented in the general population, which included 2,367 hospitalizations and 476 in-hospital deaths. In addition, a statistically significant difference was found between mean age at death in the general population (69.5 years) and the in-hospital death group (64.1 years), p < 0.001. As for hospitalizations secondary to ruptured abdominal aortic aneurysm, 149 cases were identified, with a mean age of 65.6 years, out of whom 53 (35.5 %) were under 65 years of age, with a mean age of 47.8 years. Conclusions: Epidemiological reports of aortic pathology in Mexico are scarce; therefore, implementation of screening and detection programs for aortic pathologies is necessary in order to address the disparities identified in this analysis.

The rs1477196 SNP of the FTO Gene is Associated with Primary Knee Osteoarthritis in a Female Population from Northern Mexico

ABSTRACT Background: Osteoarthritis is a frequent rheumatic disease. Some single-nucleotide polymorphisms of the gene associated with fat mass and obesity are associated with increased body mass index and knee osteoarthritis. Objective: The objective of this study was to analyze the association of single nucleotide polymorphism rs1477196 of the fat mass and obesity gene with primary knee osteoarthritis. Methods: This observational and cross-sectional study included 347 Mexican participants. We performed the genotypification analysis with TaqMan® probe C_2031262_10 for rs1477196 (Thermo Fisher Scientific). Multivariate analysis included covariables such as age, type 2 diabetes, obesity, and postmenopause. Results: Type 2 diabetes, obesity, and postmenopause were associated with primary knee osteoarthritis in female participants. We did not find an association between rs1477196 and obesity. In the codominant and dominant genetic models, rs1477196 was significantly associated with primary knee osteoarthritis only in the female group, including in the model adjusted by other covariables (odds ratio = 2.517; 1.035-6.123; p = 0.042 and odds ratio = 2.387; 1.054-5.407; p = 0.037, respectively). The interaction between rs1477196 and obesity was significantly associated with primary knee osteoarthritis in female participants (p = 0.039 and p = 0.043). Conclusions: Our findings suggest that the rs1477196 variant of the fat and obesity mass gene may be associated with the risk of primary knee osteoarthritis in women.

Improvement of Na+-K+ ATPase Activity and Gene Expression Associated with Glomerular Ultrastructural Protection in Diabetic Nephropathy by Acacia senegal: Role of Oxidative Stress Disturbances / Mejora de la actividad Na+-K+ ATPasa y la Expresión Génica Asociada con la Protección Ultraestructural Glomerular en la Nefropatía Diabética por Acacia senegal: Papel de las Alteraciones del Estrés Oxidativo

SUMMARY: This study assessed the effects of Acacia Senegal (AS) combined with insulin on Na+/K+-ATPase (NKA) activity and mRNA expression, serum glucose, renal function, and oxidative stress in a rat model of diabetic nephropathy (DN). Sixty rats were equally divided into six groups: normal control, normal+AS, diabetic (DM), DM+insulin, DM+AS, and DM+insulin+AS groups. Diabetes mellitus (type 1) was induced by a single injection of streptozotocin (65 mg/kg), and insulin and AS treatments were carried until rats were culled at the end of week 12. Serum glucose and creatinine levels, hemoglobin A1c (HbA1c) were measured. Renal homogenate levels of NKA activity and gene expression, malondialdehyde, superoxide dismutase (SOD), catalase and reduced glutathione (GSH) were evaluated as well as kidney tissue histology and ultrastructure. Diabetes caused glomerular damage and modulation of blood and tissue levels of creatinine, glucose, HbA1c, malondialdehyde, NKA activity and gene expression, SOD, catalase and GSH, which were significantly (p<0.05) treated with AS, insulin, and insulin plus AS. However, AS+insulin treatments were more effective. In conclusion, combined administration of AS with insulin to rats with DN decreased NKA activity and gene expression as well as oxidative stress, and improved glycemic state and renal structure and function.

Este estudio evaluó los efectos de Acacia senegal (AS) combinada con insulina sobre la actividad Na+/K+- ATPasa (NKA) y la expresión de ARNm, la glucosa sérica, la función renal y el estrés oxidativo en un modelo de nefropatía diabética (ND) en ratas. Sesenta ratas se dividieron equitativamente en seis grupos: control normal, normal+AS, diabética (DM), DM+insulina, DM+AS y DM+insulina+AS. La diabetes mellitus (tipo 1) se indujo mediante una única inyección de estreptozotocina (65 mg/kg), y los tratamientos con insulina y AS se llevaron a cabo hasta que las ratas fueron sacrificadas al final de la semana 12. Se midieron niveles séricos de glucosa y creatinina, hemoglobina A1c (HbA1c). Se evaluaron los niveles de homogeneizado renal de actividad NKA y expresión génica, malondialdehído, superóxido dismutasa (SOD), catalasa y glutatión reducido (GSH), así como la histología y ultraestructura del tejido renal. La diabetes causó daño glomerular y modulación de los niveles sanguíneos y tisulares de creatinina, glucosa, HbA1c, malondialdehído, actividad y expresión génica de NKA, SOD, catalasa y GSH, los cuales fueron tratados significativamente (p<0,05) con AS, insulina e insulina más AS. Sin embargo, los tratamientos con AS+insulina fueron más efectivos. En conclusión, la administración combinada de AS con insulina a ratas con DN disminuyó la actividad de NKA y la expresión genética, así como el estrés oxidativo, y mejoró el estado glucémico y la estructura y función renal.

Tumor metastásico en tejido blando a nivel del sacro secundario a carcinoma de células claras de riñón. Reporte de caso / Metastatic tumor in soft tissue at the level of the sacrum secondary toclear cell carcinoma of the kidney. A case report

Introducción. El cáncer de riñón es la undécima neoplasia maligna más común en los Estados Unidos Mexicanos. El carcinoma de células claras de riñón (CCR) es considerado la estirpe más frecuente y representa el 2-3 % de todos los cánceres a nivel mundial. En el contexto de la enfermedad metastásica, por lo general se identifica un tumor renal primario y las metástasis se localizan en pulmón, hueso, hígado, cerebro y, raramente, en tejidos blandos. Los pacientes con metástasis a tejidos blandos no tienen síntomas en las etapas iniciales y generalmente se identifican sólo cuando las lesiones aumentan de tamaño o durante el estudio de la pieza de resección quirúrgica. Caso clínico. Se presenta el caso de una paciente en la séptima década de la vida, con una metástasis en tejidos blandos de la región sacra, de 10 años de evolución posterior a una nefrectomía secundario a CCR. Resultados. Hallazgos clínicos e imagenológicos de un tumor bien delimitado. Se realizó resección quirúrgica de la lesión, bajo anestesia regional, con extirpación completa. Conclusión. Se recomienda que los pacientes con un sitio metastásico resecable y solitario sean llevados a resección quirúrgica con márgenes libres, como fue el caso de nuestra paciente, por su fácil acceso y ser una lesión única. En el CCR, además de su tratamiento quirúrgico inicial, es indispensable una estrecha vigilancia con examen físico e imágenes transversales, para detectar la presencia de metástasis y con ello evitar tratamientos tardíos.

Introduction. Kidney cancer is the eleventh most common malignancy in the United States of Mexico. Carcinoma renal cell (CRC) is considered the most frequent type and represents 2-3% of all cancers worldwide. In the setting of metastatic disease, a primary renal tumor is usually identified, and metastases are located in the lung, bone, liver, brain, and rarely in soft tissue. Patients with soft tissue metastases do not have symptoms in the initial stages and are generally found only when the lesions increase in size or during the study of the surgical resection piece. Clinical case. In this case, we report a female patient in the seventh decade of life with a soft tissue metastasis located in the sacral region, 10 years after a nephrectomy secondary to CRC. Results. Clinical and radiological findings of a well-defined tumor. Surgical resection of the lesion is performed under regional anesthesia with complete excision. Conclusions. It is recommended that patients with a resectable and solitary metastatic site be candidates for surgical resection with free margins, as was the case with our patient due to its easy access and single lesion. In CRC, in addition to its initial surgical treatment, close surveillance with physical examination and cross-sectional images is essential to monitor the presence of metastases and thus avoid late treatments.

Stimulation of mouse hematopoietic stem cells by angiogenin and DNA preparations

Immature hematopoietic progenitors are a constant source for renewal of hemocyte populations and the basic component of the tissue and cell repair apparatus. A unique property of these cells of internalizing extracellular double-stranded DNA has been previously shown. The leukostimulatory effect demonstrated in our pioneering studies was considered to be due to the feature of this cell. In the present research, we have analyzed the effects of DNA genome reconstructor preparation (DNAgr), DNAmix, and human recombinant angiogenin on both hematopoietic stem cells and multipotent progenitors. Treatment with bone marrow cells of experimental mice with these preparations stimulates colony formation by hematopoietic stem cells and proliferation of multipotent descendants. The main lineage responsible for this is the granulocyte-macrophage hematopoietic lineage. Using fluorescent microscopy as well as FACS assay, co-localization of primitive c-Kit- and Sca-1-positive progenitors and the TAMRA-labeled double-stranded DNA has been shown. Human recombinant angiogenin was used as a reference agent. Cells with specific markers were quantified in intact bone marrow and colonies grown in the presence of inducers. Quantitative analysis revealed that a total of 14,000 fragment copies of 500 bp, which is 0.2% of the haploid genome, can be delivered into early progenitors. Extracellular double-stranded DNA fragments stimulated the colony formation in early hematopoietic progenitors from the bone marrow, which assumed their effect on cells in G0. The observed number of Sca1+/c-Kit+ cells in colonies testifies to the possibility of both symmetrical and asymmetrical division of the initial hematopoietic stem cell and its progeny.

Factors associated with non-treatment of hypertension and gender differences at baseline in the ELSA-Brasil cohort

The treatment of arterial hypertension (AH) contributes to the reduction of morbidity and mortality. Gender differences are likely to play a role, as non-treatment is associated with clinical and sociodemographic aspects. The aim of this study was to investigate the factors associated with non-treatment of AH and gender differences in hypertensive individuals from the ELSA-Brasil cohort. The study was conducted with 5,743 baseline hypertensive cohort participants. AH was considered if there was a previous diagnosis or if systolic blood pressure (SBP) was ≥140 and/or diastolic BP (DBP) was ≥90 mmHg. Sociodemographic and anthropometric data, lifestyle, comorbidities, and use of antihypertensive medications were evaluated through interviews and in-person measurements. Treatment with renin-angiotensin-aldosterone system inhibitors (RAASi) or other antihypertensive medications and non-treatment were evaluated with multivariate logistic regression. Non-treatment was observed in 32.8% of hypertensive individuals. Of the 67.7% treated individuals, 41.1% received RAASi. Non-treatment was associated with alcohol consumption in women (OR=1.41; 95%CI: 1.15-1.73; P=0.001), lowest schooling level in men (OR=1.70; 95%CI: 1.32-2.19; P<0.001), and younger age groups in men and women (strongest association in males aged 35-44 years: OR=4.58, 95%CI: 3.17-6.6, P<0.001). Among those using RAASi, a higher proportion of white, older individuals, and with more comorbidities was observed. The high percentage of non-treatment, even in this civil servant population, indicated the need to improve the treatment cascade for AH. Public health policies should consider giving special attention to gender roles in groups at higher risk of non-treatment to reduce inequities related to AH in Brazil.

Cultura de segurança do paciente: percepção de profissionais atuantes no centro cirúrgico / Patient safety culture: perception of professionals working in the surgical center

Objetivo: Avaliar a cultura de segurança do paciente em um centro cirúrgico de um hospitalpúblico federal. Método: Trata-se de um estudo descritivo exploratório, com corte transversal e abordagem quantitativa. A coleta de dados ocorreu entre dezembro de 2019 e fevereiro de 2020, por meio do questionário Hospital Survey on Patient Safety Culture, que reúne o maior número de critérios psicométricos específicos sobre a cultura de segurança do paciente. Resultados: Participaram da pesquisa 55 profissionais, a maioria técnicos de Enfermagem em contato direto com o paciente. As dimensões "aprendizagem organizacional/melhoria continuada" e "apoio da gerência do hospital para a segurança do paciente" obtiveram maiores taxas de respostas positivas, consideradas dimensões de fortaleza para a cultura de segurança. Entretanto, dez dimensões não atingiram o nível de fortaleza da cultura de segurança do paciente. Conclusão: Mediante a análise das dimensões, evidenciou-se uma cultura de segurança do paciente ainda frágil na instituição, com destaque importante para o apoio da gerência hospitalar e a aprendizagem organizacional, que impactam diretamente na percepção dos profissionais sobre esse tema. (AU)

Objective: To evaluate the patient safety culture in a surgical center of a federal public hospital. Method: This is an exploratory descriptive study, with a cross-section and a quantitative approach. Data collection took place between December 2019 and February 2020, using the Hospital Survey on Patient Safety Culture questionnaire, which gathers the largest number of specific psychometric criteria on patient safety culture. Results: A total of 55 professionals participated in the research, most of them nursing technicians in direct contact with the patient. The dimensions "organizational learning/continuous improvement" and "hospital management support for patient safety" obtained higher rates of positive responses, considered dimensions of strength for the safety culture. However, ten dimensions did not reach the strength level of patient safety culture. Conclusions: Through the analysis of the dimensions, we evidenced a still fragile patient safety culture in the institution, with particular emphasis on hospital management support and orga-nizational learning, which directly impact the professionals' perception of this topic. (AU)

Objetivo: Evaluar la cultura de seguridad del paciente en un centro quirúrgico de un hospital público federal. Método: Se trata de un estudio descriptivo exploratorio, de enfoque transversal y cuantitativo. La recogida de datos se realizó entre diciembre de 2019 y febrero de 2020, mediante el cues-tionario Hospital Survey on Patient Safety Culture, que reúne el mayor número de criterios psicométricos específicos sobre cultura de seguridad del paciente. Resultados: Participaron de la investigación 55 profesionales, la mayoría técnicos de enfermería en contacto directo con el paciente. Las dimensiones "apren-dizaje organizacional/mejora continua" y "apoyo de la gestión hospitalaria a la seguridad del paciente" obtuvieron mayores índices de respuestas positivas, consideradas dimensiones de fortaleza para la cultura de seguridad. Sin embargo, diez dimensiones no alcanzaron el nivel de fortaleza de la cultura de segu-ridad del paciente. Conclusión: A través del análisis de las dimensiones, la cultura de seguridad del paciente aún era frágil en la institución, con importante énfasis en el apoyo a la gestión hospitalaria y al aprendizaje organizacional, que impactan directamente en la percepción de los profesionales sobre este tema. (AU)

Resistance of bmr energy sorghum hybrids to sugarcane borer and fall armyworm / Resistência de híbridos de sorgo energia bmr à broca-da-cana-de-açúcar e lagarta-do-cartucho

Abstract The lower lignin content in plants species with energy potential results in easier cellulose breakdown, making glucose available for ethanol generation. However, higher lignin levels can increase resistance to insect attack. The objective of this work was to evaluate the susceptibility of a bmr-6 biomass sorghum (a mutant genotype with a lower concentration of lignin) to important pests of energy sorghum, Diatraea saccharalis and Spodoptera frugiperda. Experiments were performed in the laboratory and greenhouse to evaluate the development of these pests on the biomass sorghum bmr hybrids BR007, BR008, and TX635 and their respective conventional near-isogenic genotypes (without the bmr gene). The lignin content was higher in non-bmr hybrids, but the evaluated insect variables varied between treatments, not being consistent in just one hybrid or because it is bmr or not. The lowest survival of S. frugiperda was observed in the BR008 hybrid, both bmr and non-bmr. The S. frugiperda injury scores on plants in the greenhouse were high (>7) in all treatments. For D. saccharalis, there was no difference in larval survival in the laboratory, but in the greenhouse, the BR007 hybrid, both bmr and non-bmr, provided greater survival. Due the need to diversify the energy matrix and the fact that greater susceptibility of the bmr hybrids to either pests was not found in this study, these results hold promise for cultivation of these biomass sorghum hybrids for the production of biofuels.

Resumo O menor teor de lignina em espécies de plantas com potencial energético resulta na maior facilidade de quebra da celulose, disponibilizando glicose para geração de etanol. Porém, maiores teores de lignina representa um fator de resistência ao ataque de insetos. O objetivo deste trabalho foi avaliar como importantes pragas do sorgo energia, Diatraea saccharalis e Spodoptera frugiperda, se comportam quanto à alimentação e desempenho em sorgo bmr-6, um genótipo mutante com menor concentração de lignina. Foram realizados experimentos em laboratório e casa de vegetação, avaliando o desenvolvimento destas pragas nos híbridos de sorgo biomassa bmr 007, 008, TX635 e seus respectivos genótipos isogênicos convencionais (sem o gene bmr). O teor de lignina foi maior nos híbridos não bmr, mas nos parâmetros avaliados nos insetos, houve variação entre os tratamentos, não sendo consistente em apenas um híbrido e nem por ser ou não bmr. A menor sobrevivência de S. frugiperda foi verificada no híbrido BR008 tanto bmr quanto não bmr. As notas de injúria por S. frugiperda no sorgo em casa de vegetação foram altas (>7) em todos os tratamentos. Para D. saccharalis, não houve diferença significativa para a sobrevivência larval em laboratório, mas em casa de vegetação o híbrido BR007 tanto bmr quanto não bmr proporcionaram maior sobrevivência. Diante da necessidade de diversificar a matriz energética e o fato de que não foi comprovada neste estudo maior suscetibilidade dos híbridos bmr a ambas as pragas, estes resultados são promissores para o cultivo desses híbridos de sorgo biomassa para produção de biocombustíveis.