Análisis del temperamento infantil relacionado con el uso de pantallas / Analysis of infant temperament related to screen use

Introducción: el objetivo del estudio fue describir el tiempo de uso de pantallas y relacionarlo con los rasgos temperamentales y del comportamiento del niño. Material y métodos: estudio observacional descriptivo mediante cuestionario estructurado entregado a los progenitores para saber el tiempo de exposición de su hijo/a a las pantallas y valoración del temperamento infantil con el cuestionario Emotionality Sociability and Activity Temperament (EAS) de niños con edades comprendidas entre 0 y 10 años del centro de salud Revolería y Torrero-La Paz de Zaragoza (España) durante los meses de junio de 2019 hasta febrero de 2020. El estudio fue aprobado por el Comité de Ética e Investigación de la Comunidad Autónoma de Aragón (PI 19/00260). Resultados: participación de 212 niños. El 54,1% fueron niñas. Edad media: 5,3±2,7 años; peso medio: 21,2±9,6 kg; talla media: 1,11±0,20 m; el 62,9% se clasificó en peso normal. Un 76,1% realiza ejercicio físico. Edad de inicio a la exposición a las pantallas: el 39,0% fue con una edad superior a 24 meses; el 42,4% se expone un tiempo medio de 60-120 minutos al uso de pantallas. Evaluación del temperamento infantil con la escala EAS (sociabilidad: 18,1±3,1; actividad 19,0±4,2; emocionalidad 13,9±4,0 y timidez: 12,3±4,1). Conclusiones: en la muestra estudiada, los niños con edades superiores presentaron un tiempo mayor de uso a la exposición y uso de pantallas. No se hallaron diferencias significativas entre el tiempo de uso de las pantallas y los cambios del temperamento infantil (AU)

Introduction: the aim of this study was to describe the screen time in children and analyse its association with personality traits and behaviour.Methods: observational and descriptive study through a structured, self-administered questionnaire completed by parents to assess screen time in their children and the Emotionality, Activity and Sociability (EAS) questionnaire to assess traits and behaviours in children aged 0 to 10 years in the caseloads of the Revolería and Torrero-La Paz primary care centres in Zaragoza (Spain) between June 2019 and February 2020. Research Ethics Committee of the Autonomous Community of Aragón (PI 19/00260).Results: the sample included 212 children, 54.1% female. The mean age was 5.3 ± 2.7 years; the mean weight 21.2 ± 9.6 kg, the mean height 1.1 ± 0.2 m, and 62.9% had a normal weight. Of the total, 76.1% reported physical activity. The age at which exposure to screens started was greater than 24 months in 39%; and 42.4% used screens between 60 and 120 minutes on average. The assessment of traits with the EAS survey yielded the following mean scores: sociability, 18.1 ± 3.1; activity, 19.0 ± 4.2; emotionality, 13.9 ± 4.04; shyness, 12.3 ± 4.1.Conclusion: in the sample under study, screen time and use were greater in older children. There were no statistically significant differences in screen time associated with differences in temperament. (AU)

Prevalence and Characterization of Urinary Tract Infection in Owned Dogs and Cats From Spain.

Bacterial urinary tract infection (UTI) is a common clinical concern in dogs. However, incidence of feline UTI is much lower than in dogs although an increasing prevalence has been registered. The main objective of the present study was to describe and characterize the prevalence of urinary tract pathogens in urine samples of dogs and cats with urinary clinical signs throughout different Spanish provinces. Secondary aims were to determine if there were differences in urine sample characterizations based on species (i.e., dog and cat) or season. Dogs were found to have a higher rate of positive urinary cultures than cats (39.3% and 24.7% of the cultures submitted, respectively). The bacterial genera most commonly isolated in dogs were Escherichia spp. (45.3%), Proteus spp. (13.2%), Staphylococcus spp. (11%), and Enterococcus spp. (8.6%). Whereas in the feline population, Escherichia spp. (42.7%), Enterococcus spp. (22.2%), and Staphyloccoccus spp. (15.2%) were the most frequently isolated bacteria. The highest rates of positive urine cultures were registered in Melilla (70%), Zamora (66.7%), Teruel (64.3%), and Guadalajara (60%). Moreover, the proportion of positive urine cultures was not homogeneously distributed across provinces. Finally, some seasonality was found among most isolated bacterias. Enterococcus spp. was significantly more prevalent in summer, whereas Escherichia spp. and Proteus spp. were more commonly isolated in spring and Pseudomonas spp. in autumn.

SPROUTY-2 represses the epithelial phenotype of colon carcinoma cells via upregulation of ZEB1 mediated by ETS1 and miR-200/miR-150.

SPROUTY-2 (SPRY2) is a modulator of tyrosine kinase receptor signaling with receptor- and cell type-dependent inhibitory or enhancing effects. Studies on the action of SPRY2 in major cancers are conflicting and its role remains unclear. Here we have dissected SPRY2 action in human colon cancer. Global transcriptomic analyses show that SPRY2 downregulates genes encoding tight junction proteins such as claudin-7 and occludin and other cell-to-cell and cell-to-matrix adhesion molecules in human SW480-ADH colon carcinoma cells. Moreover, SPRY2 represses LLGL2/HUGL2, PATJ1/INADL and ST14, main regulators of the polarized epithelial phenotype, and ESRP1, an epithelial-to-mesenchymal transition (EMT) inhibitor. A key action of SPRY2 is the upregulation of the major EMT inducer ZEB1, as these effects are reversed by ZEB1 knock-down by means of RNA interference. Consistently, we found an inverse correlation between the expression level of claudin-7 and those of SPRY2 and ZEB1 in human colon tumors. Mechanistically, ZEB1 upregulation by SPRY2 results from the combined induction of ETS1 transcription factor and the repression of microRNAs (miR-200 family, miR-150) that target ZEB1 RNA. Moreover, SPRY2 increased AKT activation by epidermal growth factor, whereas AKT and also Src inhibition reduced the induction of ZEB1. Altogether, these data suggest that AKT and Src are implicated in SPRY2 action. Collectively, these results show a tumorigenic role of SPRY2 in colon cancer that is based on the dysregulation of tight junction and epithelial polarity master genes via upregulation of ZEB1. The dissection of the mechanism of action of SPRY2 in colon cancer cells is important to understand the upregulation of this gene in a subset of patients with this neoplasia that have poor prognosis.

Reparación de hernia intratorácica gigante secundaria a rotura diafragmática por vía laparoscópica / Laparoscopic repair of a giant intrathoracic hernia secondary to a diaphragmatic rupture

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Colecistectomía laparoscópica en niños y adultos: lo que podemos aprender / Laparoscopic cholecystectomy: what we can learn about

Objetivos. La colecistectomía laparoscópica (CL) es un procedimiento muy habitual en adultos, pero no es tan frecuente en la edad pediátrica. Nos preguntamos si existen diferencias entre ambas poblaciones en cuanto a morbilidad y evolución postoperatoria. Material y métodos. Revisión retrospectiva de 39 casos consecutivos que precisaron CL en nuestro Servicio entre 2003-2013 y de una muestra similar de casos intervenidos en el Servicio de Cirugía General del mismo centro en pacientes entre 18 y 40 años. Resultados. 39 niños y 40 adultos cumplieron criterios para incluirse en el estudio. La indicación más frecuente fue la colelitiasis en ambos grupos. El tiempo quirúrgico medio fue significativamente mayor en los niños (niños: 127 min, adultos: 70 min, p< 0,01) pero no encontramos diferencias significativas en la tasa de reconversión o la incidencia de complicaciones (niños: 7.7%, adultos 15%). En cuanto a los factores preoperatorios, solo el sexo masculino se relacionó con mayor incidencia de complicaciones (p 0,037). Por otra parte descubrimos que, en ausencia de complicaciones, la estancia postoperatoria (niños: 2,1 días, adultos: 0,5 días), y el tiempo hasta tolerancia oral (niños: 21 h, adultos: 8 h) fueron significativamente mayores en niños (p< 0,01). Conclusiones. 1) La CL en niños es un procedimiento seguro que no presenta más morbimortalidad que en adultos, a pesar de un mayor tiempo quirúrgico. 2) Creemos que el tiempo de ingreso más prolongado se debe en parte a una falta de confianza con la técnica y que la tendencia en el futuro debe encaminarse a fomentar un inicio temprano de la tolerancia y un alta precoz (AU)

Background. Laparoscopic cholecystectomy (LC) is a very usual procedure within adult population, but not as frequent in childhood. The aim of this study was to assess the outcome of LC in children compared with those performed in adulthood. Materials and methods. We reviewed 39 consecutive patients who underwent LC between 2003 and 2013 at our Department and a similar sample of patients from 18 to 40 years of age from the General Surgery Department. Results. 39 children and 40 adults fulfilled criteria to be included in the study. The most frequent indication was cholelithiasis in both groups. The mean operating time was significantly higher among children (127 min, adults 71 min, p< 0.01) but we didn’t find differences neither in conversion nor in complication rates (children 5% and 7.7%, adults 2.5% and 15% respectively). In regard to preoperative factors, only male gender was correlated to a higher complication rate (p 0.037). On the other hand we found out that, in absence of complications, both the average length of stay (children 2.1 days, adults 0.5 days) and mean time to first feeding (children 21 hours, adults 8 hours) were significantly higher among children (p< 0.01). Conclusions. 1) LC in childhood is a safe procedure that does not imply more morbidity than the same intervention in adults, even though a more prolonged operating time. 2) We believe that our longer hospital stay is due to certain lack of confidence with the technique and, in the future, the trend should be bent on encouraging a shorter time to first feeding and an earlier discharge (AU)

Historia de la heparina / History of heparin

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[Laparoscopic cholecystectomy: what we can learn about]. / Colecistectomía laparoscópica en niños y adultos: lo que podemos aprender.

BACKGROUND: Laparoscopic cholecystectomy (LC) is a very usual procedure within adult population, but not as frequent in childhood. The aim of this study was to assess the outcome of LC in children compared with those performed in adulthood. MATERIALS AND METHODS: We reviewed 39 consecutive patients who underwent LC between 2003 and 2013 at our Department and a similar sample of patients from 18 to 40 years of age from the General Surgery Department. RESULTS: 39 children and 40 adults fulfilled criteria to be included in the study. The most frequent indication was cholelithiasis in both groups. The mean operating time was significantly higher among children (127 min, adults 71 min, p < 0.01) but we didn't find differences neither in conversion nor in complication rates (children 5% and 7.7%, adults 2.5% and 15% respectively). In regard to preoperative factors, only male gender was correlated to a higher complication rate (p 0.037). On the other hand we found out that, in absence of complications, both the average length of stay (children 2.1 days, adults 0.5 days) and mean time to first feeding (children 21 hours, adults 8 hours) were significantly higher among children (p < 0.01). CONCLUSIONS: 1) LC in childhood is a safe procedure that does not imply more morbidity than the same intervention in adults, even though a more prolonged operating time. 2) We believe that our longer hospital stay is due to certain lack of confidence with the technique and, in the future, the trend should be bent on encouraging a shorter time to first feeding and an earlier discharge.

Efficient in vivo microRNA targeting of liver metastasis.

Targeting oncogenic microRNAs (miRNAs) is emerging as a promising strategy for cancer therapy. In this study, we provide proof of principle for the safety and efficacy of miRNA targeting against metastatic tumors. We tested the impact of targeting miR-182, a pro-metastatic miRNA frequently overexpressed in melanoma, the in vitro silencing of which represses invasion and induces apoptosis. Specifically, we assessed the effect of anti-miR-182 oligonucleotides synthesized with 2' sugar modifications and a phosphorothioate backbone in a mouse model of melanoma liver metastasis. Luciferase imaging showed that mice treated with anti-miR-182 had a lower burden of liver metastases compared with control. We confirmed that miR-182 levels were effectively downregulated in the tumors of anti-miR-treated mice compared with tumors of control-treated mice, both in the liver and in the spleen. This effect was accompanied by an upregulation of multiple miR-182 direct targets. Transcriptional profiling of tumors treated with anti-miR-182 or with control oligonucleotides revealed an enrichment of genes controlling survival, adhesion and migration modulated in response to anti-miR-182 treatment. These data indicate that in vivo administration of anti-miRs allows for efficient miRNA targeting and concomitant upregulation of miRNA-controlled genes. Our results demonstrate that the use of anti-miR-182 is a promising therapeutic strategy for metastatic melanoma and provide a solid basis for testing similar strategies in human metastatic tumors.

A critical role for choline kinase-alpha in the aggressiveness of bladder carcinomas.

Bladder cancer is one of the most common causes of death in industrialized countries. New tumor markers and therapeutic approaches are still needed to improve the management of bladder cancer patients. Choline kinase-alpha (ChoKalpha) is a metabolic enzyme that has a role in cell proliferation and transformation. Inhibitors of ChoKalpha show antitumoral activity and are expected to be introduced soon in clinical trials. This study aims to assess whether ChoKalpha plays a role in the aggressiveness of bladder tumors and constitutes a new approach for bladder cancer treatment. We show here that ChoKalpha is constitutively altered in human bladder tumor cells. Furthermore, in vivo murine models, including an orthotopic model to mimic as much as possible the physiological conditions, revealed that increased levels of ChoKalpha potentiate both tumor formation (P< or =0.0001) and aggressiveness of the disease on different end points (P=0.011). Accordingly, increased levels of ChoKalpha significantly reduce survival of mice with bladder cancer (P=0.05). Finally, treatment with a ChoKalpha-specific inhibitor resulted in a significant inhibition of tumor growth (P=0.02) and in a relevant increase in survival (P=0.03).

Implications of cellular senescence in tissue damage response, tumor suppression, and stem cell biology.

Cellular senescence is characterized by an irreversible cell cycle arrest that, when bypassed by mutation, contributes to cellular immortalization. Activated oncogenes induce a hyperproliferative response, which might be one of the senescence cues. We have found that expression of such an oncogene, Akt, causes senescence in primary mouse hepatoblasts in vitro. Additionally, AKT-driven tumors undergo senescence in vivo following p53 reactivation and show signs of differentiation. In another in vivo system, i.e., liver fibrosis, hyperproliferative signaling through AKT might be a driving force of the senescence in activated hepatic stellate cells. Senescent cells up-regulate and secrete molecules that, on the one hand, can reinforce the arrest and, on the other hand, can signal to an innate immune system to clear the senescent cells. The mechanisms governing senescence and immortalization are overlapping with those regulating self-renewal and differentiation. These respective control mechanisms, or their disregulation, are involved in multiple pathological conditions including fibrosis, wound healing, and cancer. Understanding extracellular cues that regulate these processes may enable new therapies for these conditions.

microRNAs and cancer: role in tumorigenesis, patient classification and therapy.

MicroRNAs (miRNAs) are small non-coding RNAs that downregulate gene expression during various crucial cell processes such as apoptosis, differentiation and development. Recent work supports a role for miRNAs in the initiation and progression of human malignancies. Moreover, large high-throughput studies in patients revealed that miRNA profiling has the potential to classify tumours and predict patient outcome with high accuracy. Functional studies, some of which involve animal models, indicate that miRNAs act as tumour suppressors and oncogenes. This review examines the role of miRNAs in the pathogenesis of cancer as well as miRNA-profiling studies performed in human malignancies. Implications of these findings for the diagnosis and treatment of cancer patients are also discussed.

microRNAs and cancer: role in tumorigenesis, patient classification and therapy

MicroRNAs (miRNAs) are small non-coding RNAs that downregulate gene expression during various crucial cell processes such as apoptosis, differentiation and development. Recent work supports a role for miRNAs in the initiation and progression of human malignancies. Moreover, large high-throughput studies in patients revealed that miRNA profiling has the potential to classify tumours and predict patient outcome with high accuracy. Functional studies, some of which involve animal models, indicate that miRNAs act as tumour suppressors and oncogenes. This review examines the role of miRNAs in the pathogenesis of cancer as well as miRNA-profiling studies performed in human malignancies. Implications of these findings for the diagnosis and treatment of cancer patients are also discussed (AU)

Estrategia terapéutica en la extrofia de cloaca femenina / Therapeutic strategy in cloacal exstrophy

La extrofia de cloaca femenina enfrenta al cirujano pediá- trico con un reto en el que está implicada la reconstrucción del tracto genitourinario y digestivo así como su manejo funcional. El objetivo de nuestro trabajo es presentar nuestra experiencia en el manejo de las malformaciones genitales en niñas con extrofia de cloaca así como de la continencia urinaria y fecal. Revisamos las historias clínicas de las pacientes tratadas en nuestro centro en las que se ha llegado a una corrección definitiva del espectro malformativo de la extrofia de cloaca. En las tres pacientes se ha realizado un cierre del cuello vesical y un estoma cateterizable continente a través del cual llevan a cabo un programa de autocateterismo vesical intermitente, manteniéndose secas. Con respecto a la integración psicosexual, las tres pacientes están satisfechas con el resultado cosmético obtenido, aunque sólo una de ellas mantiene relaciones sexuales. El manejo de la extrofia de cloaca femenina debe tener en cuenta tanto los factores anatómicos como funcionales. La reconstrucción genital en niñas con extrofia de cloaca requiere un plan ajustado en cada paciente y en ocasiones realizar varias intervenciones hasta que la paciente esté satisfecha con el resultado tanto cosmético como funciona (AU)

Cloacal exstrophy is a complex multisistemic anomaly thatinvolves gastrointestinal and genitourinary issues. The aim of our paper is to report our experience in dealing with genital reconstruction and faecal and urinary continence in patients with female cloacal anomalies. We reviewed the clinical records from the three patients we have achieved a final reconstruction. We recorded the surgical management and both functional and anatomic results. The three of them required a bladder neck closure associated with a continent stoma, they are dry with intermittent catheterization and free of upper urinary complications. Genital reconstruction required a unique plan for each one, according to their anatomy and their cosmetic desires. One of the patients reported satisfactory sexual intercourse. Management of patients with cloacal exstrophy has major concerns about urinary and fecal continence and about genital reconstruction and function. Knowing the long-term results may help to develop management strategies and improve counselling for patients who have undergone reconstruction (AU)

The M2DM Project--the experience of two Italian clinical sites with clinical evaluation of a multi-access service for the management of diabetes mellitus patients.

OBJECTIVES: This paper presents a multi-access service for the management of diabetes mellitus patients and the results of its assessment in two Italian clinical sites. METHODS: The service was evaluated for one year in order to prove the advantages of these kind of systems from different points of view. In this paper the clinical, usability and technical outcomes are presented. RESULTS: The evaluation results show that, thanks to the high flexibility of the implemented service, the telemedicine management of diabetes patients is feasible, well accepted by patients and clinically effective. However, in Italy the problem of quantifying the reimbursement rate of telematic services and the impact they have on the organization are factors that may hamper their introduction in routine clinical practice. CONCLUSIONS: The evaluation study showed that the telemedicine intervention has been satisfactory both for physicians because it allows to constantly monitor the patients' blood glucose level and for patients because it strengthens their motivation to self-monitor the metabolic situation.

[Therapeutic strategy in cloacal exstrophy]. / Estrategia terapéutica en la extrofia de cloaca femenina.

Cloacal exstrophy is a complex multisistemic anomaly that involves gastrointestinal and genitourinary issues. The aim of our paper is to report our experience in dealing with genital reconstruction and faecal and urinary continence in patients with female cloacal anomalies. We reviewed the clinical records from the three patients we have achieved a final reconstruction. We recorded the surgical management and both functional and anatomic results. The three of them required a bladder neck closure associated with a continent stoma, they are dry with intermittent catheterization and free of upper urinary complications. Genital reconstruction required a unique plan for each one, according to their anatomy and their cosmetic desires. One of the patients reported satisfactory sexual intercourse. Management of patients with cloacal exstrophy has major concerns about urinary and fecal continence and about genital reconstruction and function. Knowing the long-term results may help to develop management strategies and improve counselling for patients who have under-gone reconstruction.