ABSTRACT Introduction: Attention deficit hyperactivity disorder (ADHD) is one of the most common childhood disorders, with several negative social and behavioral consequences. Yoga shows appropriate efficacy in different conditions but is poorly explored during childhood. Objective: Analyze the efficacy of yoga in regulating emotions and symptoms in children with ADHD. Methods: This experimental study followed up on a control group of 30 children with ADHD. They were randomly allocated group into control (N=15) and experimental (N=15) through the block randomization method. Participants completed the emotion regulation and Conner scale (CBRS) before, after, and 60 days after yoga exercise (20 sessions twice a week). Results: After 8 weeks of training, participants’ emotion regulation and ADHD symptoms improved significantly. The improvement in emotion regulation and ADHD symptoms was maintained at follow-up. Conclusion: Yoga training proved to be an easy and inexpensive method to improve the mental and physical condition of children with ADHD. Level of evidence II; Therapeutic studies - investigating treatment outcomes.

RESUMEN Introducción: El trastorno por déficit de atención e hiperactividad (TDAH) es conocido como uno de los trastornos más comunes de la infancia, con varias consecuencias sociales y conductuales negativas. El yoga muestra una eficacia adecuada en diferentes condiciones, sin embargo, está poco explorado durante la infancia. Objetivo: Analizar la eficacia del yoga en la regulación de las emociones y los síntomas en niños con TDAH. Métodos: Este estudio experimental hizo un seguimiento de un grupo de control de 30 niños con TDAH. Se asignaron aleatoriamente grupos de control (N=15) y experimentales (N=15) mediante el método de aleatorización por bloques. Los participantes completaron la escala de regulación de la emoción y de Conner (CBRS) antes, después y 60 días después del ejercicio de yoga (20 sesiones dos veces por semana). Resultados: Tras 8 semanas de entrenamiento, la regulación de las emociones y los síntomas del TDAH de los participantes mejoraron significativamente. La mejora en la regulación de las emociones y los síntomas del TDAH se mantuvieron durante el seguimiento. Conclusión: El entrenamiento de yoga demostró ser un método fácil y barato para mejorar la condición mental y física de los niños con TDAH. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

RESUMO Introdução: O transtorno de déficit de atenção com hiperatividade (TDAH) é conhecido como um dos transtornos infantis mais comuns, com várias consequências sociais e comportamentais negativas. A ioga demonstra eficácia apropriada em diferentes condições, porém é pouco explorada durante a infância. Objetivo: Analisar a eficácia da ioga na regulação das emoções e sintomas de crianças com TDAH. Métodos: Este estudo experimental efetuou o acompanhamento em um grupo-controle realizado em 30 crianças com TDAH. Foram alocados, aleatoriamente, grupo em controle (N=15) e experimental (N=15) através do método de aleatorização em bloco. Os participantes completaram a regulação emocional e a escala de Conner (CBRS) antes, depois e 60 dias após o exercício de yoga (20 sessões duas vezes por semana). Resultados: Após 8 semanas de treinamento, a regulação das emoções dos participantes e os sintomas de TDAH melhoraram significativamente. A melhoria da regulação das emoções e dos sintomas de TDAH foi mantida no acompanhamento. Conclusão: O treinamento em ioga demonstrou-se um método fácil e econômico para melhorar a condição mental e física das crianças com TDAH. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

We aimed to explore the imbalance between the T helper 17 γδT cells (γδT17) and the regulatory γδT cells (γδTreg) in asthmatic mice. Male Balb/c mice were randomly divided into the normal control group and the asthmatic model group. The asthmatic model group mice were intraperitoneally injected with the mixture of ovalbumin (OVA)/Al(OH)3 and then activated by exposure of the animals to OVA atomization. Airway hyperresponsiveness (AHR) was determined by a non-invasive lung function machine. Hematoxylin and eosin and Alcian blue-periodic acid Schiff staining were done for histopathological analysis. Interleukin (IL)-17 and IL-35 levels in bronchoalveolar lavage fluid were detected by ELISA. The percentage of IL-17+ γδT cells and Foxp3+ γδT cells in spleen cells suspension were detected and the transcription levels of RORγt and Foxp3 in the lung tissue were determined. Compared with the normal control, the severity of airway inflammation and AHR were higher in the asthmatic mice. Furthermore, mice in the asthmatic group displayed significant increases of IL-17+ γδT cells, expression of IL-17A, and RORγt, whereas control mice displayed marked decreases of Foxp3+ γδT cells, expression of IL-35, and transcription factor Foxp3. In addition, the mRNA expression of RORγt was positively correlated with the percentage of IL-17+γδT cells, and the mRNA level of Foxp3 was positively correlated with the percentage of Foxp3+ γδT cells. The imbalance of γδT17/γδTreg in the asthmatic mice may contribute to the pathogenesis of OVA-induced asthma.

Abstract Methotrexate has immunosuppressive effects and is administered for refractory chronic urticaria. We present a case of Pneumocystis jirovecii pneumonia in a patient with refractory chronic urticaria managed by low-dose weekly methotrexate treatment (total cumulative dose 195mg). Our study highlights the importance of providing prompt diagnosis and treatment of Pneumocystis jirovecii pneumonia in patients with chronic urticaria under methotrexate therapy.

Objective: The aims of this study were to compare different surgical approaches to rapid canine retraction by designing and selecting the most effective method of reducing resistance by a three-dimensional finite element analysis. Material and Methods: Three-dimensional finite element models of different approaches to rapid canine retraction by reducing resistance and distraction were established, including maxillary teeth, periodontal ligament, and alveolar. The models were designed to dissect the periodontal ligament, root, and alveolar separately. A 1.5 N force vector was loaded bilaterally to the center of the crown between first molar and canine, to retract the canine distally. The value of total deformation was used to assess the initial displacement of the canine and molar at the beginning of force loading. Stress intensity and force distribution were analyzed and evaluated by Ansys 13.0 through comparison of equivalent (von Mises) stress and maximum shear stress. Results: The maximum value of total deformation with the three kinds of models occurred in the distal part of the canine crown and gradually reduced from the crown to the apex of the canine; compared with the canines in model 3 and model 1, the canine in model 2 had the maximum value of displacement, up to 1.9812 mm. The lowest equivalent (von Mises) stress and the lowest maximum shear stress were concentrated mainly on the distal side of the canine root in model 2. The distribution of equivalent (von Mises) stress and maximum shear stress on the PDL of the canine in the three models was highly concentrated on the distal edge of the canine cervix. . Conclusions: Removal of the bone in the pathway of canine retraction results in low stress intensity for canine movement. Periodontal distraction aided by surgical undermining of the interseptal bone would reduce resistance and effectively accelerate the speed of canine retraction.

Na busca por produtos naturais que podem ser utilizados para controle da esquistossomose, dezenove extratos de onze plantas medicinais do leste da China foram testados para atividade moluscicida contra o caramujo Oncomelania hupensis. A fração n-butanol das folhas frescas de Buddleja lindleyana Fortune, Buddlejaceae, mostrou atividade significativa contra os caracóis. A análise estatística revelou que os valores de CL50 e CL90 para a fração n-butanol foram 39,91 mg L-1 e 59,28 mg L-1 por 48 h, respectivamente. Por outro lado, a CL50 para a fração n-butanol para peixe-zebra foi 403,24 mg L-1 por 48 h. Portanto, a fração n-butanol das folhas frescas de B. lindleyana poderá vir a ser um moluscicidas potente e seguro.

In a search for natural products that could be used to control schistosomiasis, nineteen extracts of eleven medicinal plants from eastern China have been tested for molluscicidal activity against snail Oncomelania hupensis. The n-butanol fraction of the fresh leaf from Buddleja lindleyana Fortune, Buddlejaceae, showed significant activity against the snails. Statistical analysis revealed that the LC50 and LC90 values for the n-butanol fraction were 39.91 mg L-1 and 59.28 mg L-1 for 48 h, respectively. Otherwise, the LC50 values for the n-butanol fraction to zebrafish was 403.24 mg L-1 for 48 h. Therefore, the n-butanol fraction of the fresh leaf from B. lindleyana may be a potent and safe molluscicides.