Abstract Background: Primary cutaneous CD4+ small/medium-sized pleomorphic T-Cell lymphoproliferative disorder (PC-SMTLD) has been considered as a controversial dermatological disease that has been included in cutaneous T-cell lymphoma group, presenting most commonly as a solitary nodule and/or plaque with a specific and characteristic head and neck predilection. Due to the considerable overlap between PC-SMTLD and pseudolymphoma (PL), the differential diagnosis is often challenging. Methylation of DNA at position 5 of cytosine, and the subsequent reduction in intracellular 5-hydroxymethylcytosine (5-hmC) levels, is a key epigenetic event in several cancers, including systemic lymphomas. However, it has rarely been studied in cutaneous lymphomas. Objectives: The authors aimed to explore the role of differential 5-hmC immunostaining as a useful marker to distinguish PC-SMTLD from PL. Methods: Retrospective case series study with immunohistochemical and immunofluorescence analysis of 5-hmC was performed in PL and PC-SMTLD. Results: Significant decrease of 5-hmC nuclear staining was observed in PC-SMTLD when compared with PL (p<0.0001). By semi-quantitative grade integration, there were statistical differences in the final 5-hmC scores in the two study groups. The IF co-staining of 5-hmC with CD4 revealed a decrease of 5-hmC in CD4+ lymphocytes of PC-SMTLD. Study limitations: The small clinical sample size of the study. Conclusions: The immunorreactivity of 5-hmC in CD4+ lymphocytes was highly suggestive of a benign process as PL. Furthermore, the decrease of 5-hmC nuclear staining in PC-SMTLD indicated its lymphoproliferative status and helped to make the differential diagnosis with PL. © 2023 Sociedade Brasileira de Dermatologia. Published by Elsevier España, S.L.U. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).

ABSTRACT Objective: circCPA4 has been defined to be an oncogenic gene. This study examined whether circCPA4 regulates Prostate Cancer (PC) development and revealed its molecular mechanism. Methods: PC tissues and PC cell lines were collected, in which circCPA4/miR-491-5p/SHOC2 levels were evaluated by RT-qPCR and immunoblot. Colony formation assay and EdU assay assessed cell proliferation, flow cytometry measured apoptosis, and Transwell assessed invasion and migration. Ki-67, cleaved caspase-3, E-cadherin, and N-cadherin were evaluated by immunoblot. Based on the luciferase reporter assay and RIP assay the authors investigated the targeting relationship between circCPA4/miR-491-5p/SHOC2. The effect of circCPA4 on tumor growth was evaluated by xenotransplantation in nude mice. Results: circCPA4 and SHOC2 levels were abundant while miR-491-5p expression was low in PC. Loss of circCPA4 decreased the proliferation and EdU-positive rate of PC cells, enhanced apoptosis, and inhibited invasion, migration, and EMT. Upregulation of circCPA4 forced the malignant behaviors of PC cells, and this promotion could be abolished when miR-491-5p was overexpressed or SHOC2 was silenced. CircCAP4 competitively decoyed miR-491-5p mediating SHOC2 expression. circCAP4 suppression inhibited PC tumor growth. Conclusion: circCAP4 acts as a novel oncogenic factor in PC, accelerating the malignant behavior of PC cells via miR-491-5p/SHOC2 interaction. This novel ceRNA axis may be a potential target for PC drug development and targeted therapy in the future.

ABSTRACT: As an essential way to enhance farmers’ self-development ability, off-farm employment plays an indispensable role in farmers’ multidimensional poverty reduction in many countries. Employing a survey of 1926 farmers in five provinces of the Yellow River Basin in China, this paper examined the multi-dimensional poverty reduction effect of off-farm employment and the heterogeneous influence of different dimensions of off-farm employment (modes, levels, distances and frequency). The results showed that (1) although absolute poverty in the income dimension was largely eliminated in the Yellow River Basin, the poverty in social resources, transportation facilities, employment security were the key bottlenecks restricting farmers’ self-development. (2) The province with the best multidimensional poverty reduction effect for non-farm employment was Shaanxi, with the largest contribution to employment security. (3) Improving off-farm employment level, distance and time can significantly alleviate the multi-dimensional poverty of farmers. Therefore, to lessen the multi-dimensional poverty of farmers in the Yellow River Basin, it is necessary to focus on the governance of multi-dimensional key poverty-stricken areas, such as the middle and upper courses of the Yellow River, adopting multidimensional poverty alleviation strategy of off-farm employment according to local conditions, working on the farmers’ deficiencies in social resources, mobility, employment security, and deepening the effect of off-farm employment on benefiting farmers and helping the poor.

RESUMO: Como uma forma essencial de aumentar a capacidade de autodesenvolvimento dos agricultores, o emprego fora da fazenda desempenha um papel indispensável na redução da pobreza multidimensional dos agricultores em muitos países. Empregando uma pesquisa com 1926 agricultores em cinco províncias da Bacia do Rio Amarelo na China, este documento examina o efeito multidimensional de redução da pobreza do emprego e a influência heterogênea de diferentes dimensões do emprego fora da fazenda (modos, níveis, distâncias e frequência). Os resultados mostram que (1) embora a pobreza absoluta na dimensão da renda tenha sido em grande parte eliminada na Bacia do Rio Amarelo, a pobreza em recursos sociais, facilidades de transporte e segurança no emprego são os principais gargalos que restringem o autodesenvolvimento dos agricultores. (2) A província com o melhor efeito multidimensional de redução da pobreza para o emprego não agrícola foi Shaanxi, com a maior contribuição para a segurança no emprego. (3) A melhoria do nível de emprego fora da fazenda, distância e tempo pode aliviar significativamente a pobreza multidimensional dos agricultores. Portanto, para diminuir esta pobreza é necessário concentrar-se na governança de áreas-chave multidimensionais atingidas, tais como os cursos médio e superior do Rio Amarelo, adotando uma estratégia multidimensional de redução da pobreza de emprego fora da fazenda de acordo com as condições locais, trabalhando nas deficiências dos agricultores em recursos sociais, mobilidade, segurança no emprego e aprofundando o efeito do emprego fora da fazenda em benefício dos agricultores e ajudando os pobres.

ABSTRACT Introduction: Atrial fibrillation is one of the common complications of mitral valve disease. Currently, in the absence of freezing equipment, it’s still impossible to fully conduct a minimally invasive Cox-maze IV procedure to treat atrial fibrillation. Methods: We analyzed the clinical data of 28 patients who underwent thoracoscopic minimally invasive mitral valve full maze surgery in our hospital from October 2021 to September 2022; 13 patients were male and 15 were female, three suffered from paroxysmal atrial fibrillation, and 25 suffered from permanent atrial fibrillation; average age was 61.88±8.30 years, and mean preoperative left atrial diameter was 47.12±8.34 mm. Isolation of left atrial posterior wall (box lesion) was completed in all patients by cut-and-sew technique and bipolar clamp ablation. Results: For these subjects, the median cardiopulmonary bypass time was 169 (109.75-202.75) minutes, aortic cross-clamping time was 106 (77.75-125.50) minutes, and ventilator assistance time was 6.5 (0-10) hours. Among them, eight subjects had the endotracheal tubes removed immediately after surgical operation. Three subjects were in the blanking period; two subjects still had atrial fibrillation at three months after operation, one of whom resumed sinus rhythm after electrical cardioversion therapy; and all the remaining 23 subjects had sinus rhythm. Conclusion: The minimally invasive cut-and-sew technique for electrical isolation of left pulmonary veins can improve sinus conversion rate of patients suffering from both mitral valve disease and atrial fibrillation. In selected subjects, it is safe and has good results in the short-term postoperative period.

Resumen Objetivo: Investigar los efectos de la intervención basada en el modelo de creencias de salud en los comportamientos de las enfermeras en términos de mantener húmedos los instrumentos quirúrgicos. Método: Se realizaron encuestas previas y posteriores a la capacitación sobre la humectación de instrumentos con las mismas 356 enfermeras de un hospital en China. Ambas encuestas contenían un cuestionario sobre el conocimiento general relacionado con la humectación del instrumento, preguntas basadas en escalas de percepción sobre el mismo tema y un formulario de inspección sobre la implementación de los procedimientos de humectación. Se proporcionó una formación de 3 meses a las enfermeras. Resultados: Después de la capacitación se mejoraron los conocimientos, las actitudes, las creencias y los comportamientos de las enfermeras para la humectación del instrumento. Conclusiones: La intervención basada en el modelo de creencias en salud puede generar una mejora significativa en el cumplimiento de los requisitos de humectación del instrumental quirúrgico por parte de las enfermeras, y las correspondientes mejoras en la limpieza del instrumental y la seguridad del paciente.

Abstract Objective: We investigated the effects of the Health Belief Model (HBM)-based intervention on nurses' behaviors in terms of keeping surgical instruments moist. Materials and methods: Pre- and post-training surveys about instrument moistening were conducted with the same 356 nurses from a hospital in China. Both of the surveys contained questionnaire concerning general knowledge relating to instrument moistening, perception scale-based questions concerning the same issue, and an inspection form concerning the implementation of moistening procedures. Three months' training was provided for the nurses. Results: After training, the nurses' knowledge, attitudes, beliefs, and behaviors for instrument moistening were improved. Conclusions: The HBM-based intervention can bring about a significant improvement in nurses' compliance with surgical instrument moistening requirements, and corresponding improvements in instrument cleanliness and patient safety.

Resumen El procesamiento de soluciones es un método de bajo costo para preparar una variedad de películas delgadas orgánicas o inorgánicas. Para compuestos de óxidos metálicos, un procesamiento de solución de un compuesto organometálico se usa con frecuencia como solución precursora para ser recubierta por rotación, seguida de un tratamiento térmico para formar el óxido metálico. En este trabajo se obtienen polvos de óxido de vanadio a partir de una simple reacción ácido-base, y luego se dispersan en alcohol isopropílico para formar una solución para spin-coating. También se agregan diferentes cantidades de sal de cobalto junto con VOx en alcohol isopropílico para formar soluciones de VOx:Co2+. Después del tratamiento térmico a 200 °C, se obtienen películas delgadas transparentes. Se analizan las propiedades ópticas, estructurales, morfológicas y químicas. Se encontró que el compuesto VO2:Co2+ es amorfo y se obtiene con una relación atómica V:Co variada de 6.6:1-1.6:1. El material presenta una absorción óptica alrededor de 2.3 eV. Se observa una interesante morfología porosa interconectada cuando la relación atómica de V:Co es ~4.9:1. Se concluye que se pueden obtener películas delgadas amorfas porosas de VO2:Co2+ a partir del spin-coating a una baja temperatura de tratamiento utilizando una solución simple sin agente complejante.

Abstract Solution-processing is a low-cost solution method to prepare a variety of organic or inorganic thin films. For metal oxide compounds, a solution-processing solution of an organometallic compound is frequently used as a precursor to be spin coated, followed by a thermal annealing to form metal oxide. In this work, vanadium oxide powders are obtained from a simple acid-base reaction, and then they are dispersed in isopropyl alcohol to form a solution for spin-coating. Different amount of cobalt salt are also added together with VOx into isopropyl alcohol to form VOx:Co2+ solutions. After thermal annealing at 200 °C, continuous transparent thin films are obtained. Optical, structural, morphological and chemical binding energies of those films are analyzed. It is found that amorphous VO2:Co2+ compound is formed in those films with V:Co atomic ratios between 6.6:1 and 1.6:1. Optical absorption onsets of those films are around 2.3 eV. An interesting interconnected porous morphology is observed when the atomic ratio of V:Co is around 4.9:1. It is concluded that porous amorphous cobalt doped vanadium oxide thin films can be obtained from a spin-coating process at low annealing temperature from a simple solution without any complex agent.

SUMMARY: The objective of this study was to evaluate the maxillary molar root canal morphology in individuals from the Shandong province, China, using cone-beam computed tomography (CBCT) and classify it based on Ahmed et al. (2017) classification system to obtain a reference for clinical diagnosis and treatment. From December 2020 to June 2021, we screened CBCT data of 1,619 patients at the Jinan Stomatological Hospital who had been indicated for CBCT because of various oral abnormalities. The root and root canal morphologies of all teeth were statistically analyzed, and the root canal morphology was classified based on Ahmed et al. (2017) classification system. In the maxillary molars, three roots were the most common, accounting for 99.24 % and 74.61 % of all maxillary first and second molars, respectively. Two roots were the second most common, accounting for 0.66 % and 17.29 % of all maxillary first and second molars, respectively. Root morphology variation, e.g., fusion or furcation defect, was present in 22 (0.76 %) maxillary first molars and 765 (25.39 %) maxillary second molars, with the most common being mesiobuccal and distobuccal root fusion. Detection rates of a second mesiobuccal canal (MB2) in the maxillary first and second molars were 48.5 % and 26.5 %, respectively. Among age groups, the frequency of MB2 was the highest in the 15-24-year-old group and lowest in the 55-64-year-old group. Bilateral MB2 root canals were present in 64.8 % and 48.4 % of the maxillary first and second molars, respectively. Men and women accounted for 60.6 % and 67.8 % of the maxillary first molars, respectively, and 51.7 % and 45.6 % of the maxillary second molars, respectively. According to Ahmed et al. (2017) classification of root canal morphology, 18 and 22 root canal configurations were found in 1,453 right maxillary first molars and 1,444 left maxillary first molars, respectively. The right maxillary first molars showed three two-rooted, 14 three-rooted, and one four-rooted type. The left maxillary first molars showed two one-rooted, six two-rooted, and 14 three-rooted types. According to Ahmed et al. (2017) classification of root canal morphology, 43 and 45 root canal configurations were found in 1,507 right maxillary second molars and 1,506 left maxillary second molars, respectively. The right maxillary second molars showed 17 one-rooted, 16 two- rooted, eight three-rooted, and two four-rooted types. The left maxillary second molars showed 19 one-rooted, 13 two-rooted, 12 three- rooted, and one four-rooted type. This study showed that the maxillary molar root canal morphology is diverse in the Shandong province. Ahmed et al. (2017) classification system provides a clear description of the root canal morphology. CBCT can be used to study complex root and root canal morphologies.

RESUMEN: El objetivo de este estudio fue evaluar la morfología del conducto radicular del molar superior en individuos de la provincia de Shandong, China, utilizando tomografía computarizada de haz cónico (CBCT) y clasificarla con base en el sistema de clasificación de Ahmed et al. (2017) para obtener una referencia para diagnóstico clínico y tratamiento. Desde diciembre de 2020 hasta junio de 2021, analizamos los datos de CBCT de 1619 pacientes en el Hospital Estomatológico de Jinan a quienes se les indicó CBCT debido a diversas anomalías orales. Las morfologías de la raíz y del conducto radicular de todos los dientes se analizaron estadísticamente, y la morfología del conducto radicular se clasificó según el sistema de clasificación de Ahmed et al. (2017). En los molares superiores, tres raíces fueron las más comunes, representando el 99,24 % y el 74,61 % de todos los primeros y segundos molares superiores, respectivamente. Dos raíces fueron las segundas más comunes, representando el 0,66 % y el 17,29 % de todos los primeros y segundos molares superiores, respectivamente. La variación de la morfología de la raíz, por ejemplo, fusión o defecto de furcación, estuvo presente en 22 (0,76 %) primeros molares superiores y 765 (25,39 %) segundos molares superiores, siendo la fusión radicular mesiovestibular y distovestibular la más común. Las tasas de detección de un segundo canal mesiovestibular (MB2) en los primeros y segundos molares superiores fueron del 48,5 % y 26,5 %, respectivamente. Entre los grupos de edad, la frecuencia de MB2 fue más alta en el grupo de 15 a 24 años y más baja en el grupo de 55 a 64 años. Los conductos radiculares MB2 bilaterales estaban presentes en el 64,8 % y el 48,4 % de los primeros y segundos molares superiores, respectivamente. En los hombres y en las mujeres representaron el 60,6 % y el 67,8 % de los primeros molares superiores, respectivamente, y el 51,7 % y el 45,6 % de los segundos molares superiores, respec- tivamente. Según la clasificación de la morfología del conducto radicular de Ahmed et al. (2017) se encontraron configuraciones de conducto radicular 18 y 22 en 1453 primeros molares superiores derechos y 1444 primeros molares superiores izquierdos, respectivamente. Los primeros molares superiores derechos mostraron tres tipos de dos raíces, 14 de tres raíces y uno de cuatro raíces. Los primeros molares superiores izquierdos mostraron dos tipos de una raíz, seis de dos raíces y 14 de tres raíces. Según la clasificación de la morfología del conducto radicular de Ahmed et al. (2017) se encontraron configuraciones de conducto radicular 43 y 45 en 1507 segundos molares superiores derechos y 1506 segundos molares superiores izquierdos, respectivamente. Los segundos molares superiores derechos mostraron 17 tipos de una raíz, 16 de dos raíces, ocho de tres raíces y dos de cuatro raíces. Los segundos molares superiores izquierdos mostraron 19 de una raíz, 13 de dos raíces, 12 de tres raíces y uno de cuatro raíces. Este estudio mostró que la morfología del conducto radicular del molar superior es diversa en la provincia de Shandong. El sistema de clasificación de Ahmed y colaboradores proporciona una descripción clara de la morfología del conducto radicular. CBCT se puede utilizar para estudiar morfologías complejas de raíces y conductos radiculares.

RESUMEN Actualmente los espacios laborales y educacionales han sido alterados por la pandemia, la forma de comunicarse también; se ha pasado de una comunicación en el tiempo a una comunicación en tiempo real. Esta investigación tiene como objetivo conocer la importancia de la comunicación en las aulas virtuales, buscando identificar herramientas, estrategias que permitan una mejor comunicación virtual. El enfoque es cuantitativo, de tipo básico, método hipotético deductivo y diseño no experimental descriptivo, se obtuvo una confiabilidad de 0.72 usando Alpha de Cronbach. La población está conformada por 25 estudiantes de las facultades de la Universidad Tecnológica del Perú. Los resultados muestran, el 12% no usan audio conferencias, el 25% no usan herramientas de evaluación virtual que permitan una mejor interacción, esto significa que los docentes no están aprovechando las herramientas tecnológicas para tener una buena comunicación virtual. Se concluye, existe la necesidad de mejorar la comunicación virtual con herramientas tecnológicas.

RESUMO Atualmente, os espaços de trabalho e educacionais foram alterados pela pandemia, assim como a forma de se comunicar; passamos da comunicação no tempo para a comunicação em tempo real. Esta pesquisa tem como objetivo compreender a importância da comunicação em salas de aula virtuais, buscando identificar ferramentas e estratégias que permitam uma melhor comunicação virtual. A abordagem é quantitativa, do tipo básica, método hipotético dedutivo e delineamento não experimental descritivo, tendo sido obtida uma confiabilidade de 0,72 por meio do Alfa de Cronbach. A população foi composta por 25 alunos das faculdades da Universidad Tecnológica del Perú. Os resultados mostram que 12% não usam audioconferências, 25% não usam ferramentas de avaliação virtual que permitam uma melhor interação, o que significa que os professores não estão aproveitando as ferramentas tecnológicas para uma boa comunicação virtual. Conclui-se que há necessidade de melhorar a comunicação virtual com ferramentas tecnológicas.

ABSTRACT Currently, work and educational spaces have been altered by the pandemic, and so has the way of communicating; we have gone from a communication in time to a communication in real time. The objective of this research is to know the importance of communication in virtual classrooms, seeking to identify tools and strategies that allow a better virtual communication. The approach is quantitative, basic type, hypothetical deductive method and descriptive non-experimental design, a reliability of 0.72 was obtained using Cronbach's Alpha. The population is made up of 25 students from the faculties of the Universidad Tecnológica del Perú. The results show that 12% do not use audio conferences, 25% do not use virtual evaluation tools that allow a better interaction, this means that teachers are not taking advantage of technological tools to have a good virtual communication. It is concluded that there is a need to improve virtual communication with technological tools.

ABSTRACT Objective: Intrathyroidal injection using an insulin pen filled with a mixture of lidocaine and triamcinolone acetonide is a therapy for subacute thyroiditis (SAT) reported by us previously. We aimed to evaluate the clinical efficacy of ultrasound-guided intrathyroidal injection in the treatment of SAT. Subjects and methods: A total of 93 patients with SAT completed the study. All patients were evaluated via a history and clinical examination followed by thyroid function tests and ultrasonography of the thyroid. After ultrasound-guided intrathyroidal injection, the patients were followed up with respect to the injection frequency, treatment duration, and patient satisfaction. The visual numerical rating scale was used as a pain questionnaire for a given interval. Results: Thyroid pain instantly decreased to scores below 3.0 following the first injection. Sixty-three patients (67.74%) avoided relapse of thyroid pain within 3 injections, which occurred within only 3 days after the first injection. The pain in 27 patients (29.03%) disappeared completely after 4-6 injections. Only 3 patients (3.23%) were found to need more than 6 injections, with 10 cited as the maximum number of injections, the injection took only 17 days altogether. The mean treatment cycle of the intrathyroidal injection was 3.98 days. There were no other associated complications with the novel therapy except infrequent small subcutaneous hematomas, which could be prevented with skilled practice. The average patient satisfaction score was as high as 9.0. Conclusion: Intrathyroidal injection of lidocaine and triamcinolone acetonide using an insulin pen was found to be an advantageous and satisfactory treatment for SAT.

Abstract Objectives To evaluate the therapeutic effect of Saccharomyces boulardii supplementation on jaundice in premature infants undergoing phototherapy. Methods In this article, the authors reviewed 100 hospitalized jaundiced premature infants under 35 weeks of gestational age. All infants were assigned to a control group (n= 45) and a treatment group (n= 55) randomly. The infants in the treatment group received S. boulardii supplementation by undergoing phototherapy and the infants in the control group were only treated by phototherapy. The total serum bilirubin levels were detected before and at the end of phototherapy, and transcutaneous bilirubin levels were measured on the 1st, 4th, 8th and 15th day of treatment. The duration of jaundice resolution and phototherapy, stool frequency, and characteristics were compared after phototherapy. Results The duration of jaundice resolution and phototherapy were shortened. Total serum bilirubin level was lower than the control group at the end of phototherapy (p < 0.05). Transcutaneous bilirubin levels decreased more significantly on the 8th and 15th day of treatment (p < 0.05), while there were no significant differences on the post-treatment 1st and 4th day (p > 0.05). In addition, bowel movements including stool frequency and Bristol Stool Form Scale ratings of stools also improved after treatment. Conclusions S. boulardii in combination with phototherapy is effective and safe in reducing bilirubin levels and duration of phototherapy, accelerating jaundice resolution in premature infants with jaundice. The procedure also provided an ideal therapeutic effect of diarrhea induced by phototherapy to promote compliance and maternal-infant bonding.

Rapid recognition of the sources of drugs can provide some valuable clues and the basis for determining the nature of the case. A novel recognition method was put forward to identify the sources of heroin drugs rapidly and non-destructively by using a hand-held near infrared (NIR) spectrometer and a multi-layer-extreme learning machine (ML-ELM) algorithm. In contrast to traditional linear discriminant analysis (LDA), support vector machine (SVM) and extreme learning machine (ELM) algorithms, the accuracy, sensitivity and specificity were the highest for the proposed ML-ELM algorithm. The prediction accuracy of the ML-ELM algorithm was 25.33, 20.00, 17.33% higher than that of LDA, SVM and ELM algorithm, respectively, for 4 cases. The ML-ELM models for recognizing the different sources of heroin drugs had the best generalization ability and prediction results. The experimental results indicated that the combination of the hand held NIR technology and ML-ELM algorithm can recognize the different sources of heroin drugs rapidly, accurately, and non-destructively on the spot.