The Lymphatic Endothelial Cell Secretome Inhibits Osteoblast Differentiation and Bone Formation.

Complex lymphatic anomalies (CLAs) are a set of rare diseases with unique osteopathic profiles. Recent efforts have identified how lymphatic-specific somatic activating mutations can induce abnormal lymphatic formations that are capable of invading bone and inducing bone resorption. The abnormal bone resorption in CLA patients has been linked to overactive osteoclasts in areas with lymphatic invasions. Despite these findings, the mechanism associated with progressive bone loss in CLAs remains to be elucidated. In order to determine the role of osteoblasts in CLAs, we sought to assess osteoblast differentiation and bone formation when exposed to the lymphatic endothelial cell secretome. When treated with lymphatic endothelial cell conditioned medium (L-CM), osteoblasts exhibited a significant decrease in proliferation, differentiation, and function. Additionally, L-CM treatment also inhibited bone formation through a neonatal calvaria explant culture. These findings are the first to reveal how osteoblasts may be actively suppressed during bone lymphatic invasion in CLAs.

Adaptation and validation of the Adult Dispositional Hope Scale in the Ecuadorian context.

This study aimed to evidence the validity and reliability of the Ecuadorian version of the Adult Dispositional Hope Scale, one of the most studied concepts of positive psychology. The adaptation process included translation and semantic and idiomatic validation. For content validation, an expert review and focus group were conducted. The questionnaire was applied to 2423 workers in Ecuador with a mean age of 37 years (SD = 9.04), and 65.6% were women. A confirmatory factor analysis was conducted to assess the validity of the scale's dimensionality. The reliability and convergent and discriminant validity were also evaluated. In order to investigate the best solution for an Ecuadorian version of the Adult Dispositional Hope Scale, four structural models were assessed. The unidimensional solution was the most adequate structure for the scale. The internal consistency of the scale was adequate. The Adult Dispositional Hope Scale (ADHS) was developed to assess this positive psychological state and has been the most used tool in many contexts. To our knowledge, this study is the first to adapt the Adult Dispositional Hope Scale into the Ecuadorian context and evaluate its validity. The findings support its reliability, factorial, and construct validity in the Ecuadorian context. Furthermore, the results show that dispositional hope acts as a protective factor, promoting work engagement and preventing burnout.

Adaptation and validation of the Adult Dispositional Hope Scale in the Ecuadorian context

Abstract This study aimed to evidence the validity and reliability ofthe Ecuadorian version ofthe Adult Dispositional Hope Scale, one of the most studied concepts of positive psychology. The adaptation process included translation and semantic and idiomatic validation. For content validation, an expert review and focus group were conducted. The questionnaire was applied to 2423 workers in Ecuador with a mean age of 37 years (SD = 9.04), and 65.6% were women. A confirmatory factor analysis was conducted to assess the validity of the scale's dimensionality. The reliability and convergent and discriminant validity were also evaluated. In order to investigate the best solution for an Ecuadorian version ofthe Adult Dispositional Hope Scale, four structural models were assessed. The unidimensional solution was the most adequate structure for the scale. The internal consistency of the scale was adequate. The Adult Dispositional Hope Scale (ADHS) was developed to assess this positive psychological state and has been the most used tool in many contexts. To our knowledge, this study is the first to adapt the Adult Dispositional Hope Scale into the Ecuadorian context and evaluate its validity. The findings support its reliability, factorial, and construct validity in the Ecuadorian context. Furthermore, the results show that dispositional hope acts as a protective factor, promoting work engagement and preventing burnout.

The Ecuadorian Version of the Burnout Assessment Tool (BAT): Adaptation and Validation.

This study aimed to adapt and show evidence of validity for the Ecuadorian version of the Burnout Assessment Tool (BAT) considering only its "core" dimensions. The adaptation process included its translation and back translation. For content validation, expert reviews and focus groups were carried out. A confirmatory factor analysis was used to identify the psychometric properties and dimensionality of the scale. The reliability of the scale was assessed through the alpha, omega and composite reliability indices. To carry out the study, the questionnaire was applied to a sample of workers with a high level of education in Ecuador. In total, 2237 respondents were considered in the analysis. The results showed that the hierarchical model for BAT-23 and its short version, the BAT-12 scale, is the most adequate structure for analysis of the construct in the Ecuadorian context. The reliability of the general factor of burnout and its dimensions, evaluated by composite reliability, omega and Cronbach's alpha, showed satisfactory indices. The findings obtained provide support for the reliability and validity of the Burnout Assessment Tool for the Ecuadorian context.

Revisional Surgery Following Laparoscopic Gastric Plication.

BACKGROUND: The laparoscopic gastric plication (LGP) is a relative new bariatric procedure that has gained popularity over the last few years, but no real consensus exists and the evidence is unclear, especially in its real efficacy, safety, and durability. METHODS: Retrospective study analyzing the records patients submitted to LGP between 2009 and 2010. The primary objective was to describe the characteristics and outcomes of patients submitted to revisional surgery. Baseline data and evolution were obtained and analyzed. Surgical analysis included revision cause, perioperative outcome, type of surgery, complications, and weight loss after 18 months. A comparison between gastric bypass and sleeve gastrectomy was performed. RESULTS: One hundred LGP were performed. After a mean time of 13.5 months, 42 patients presented an overall excess weight loss (EWL) <50 % and 38 had severe symptoms. Thirty patients accepted revisional surgery with BMI before conversion of 38.6 ± 4.2 kg/m2. There were 17 laparoscopic sleeve gastrectomy (LSG) and 13 laparoscopic gastric bypass (LGBP) with comparable preoperative characteristics. The LSG group had lower pneumoperitoneum time and less hospital stay. At 18 months, the LGBP group had lower BMI (24.1 ± 1.1 vs. 25.8 ± 1.3 kg/m2 for the LSG; p = 0.006) and higher %EWL (75.7 ± 16.1 vs. 61.4 ± 14.5 % for the LSG; p = 0.008). CONCLUSION: In our series, LGP presented a high failure rate and an increased number of symptomatic patients. Revisional surgery proved to be safe and effective. Revision to LSG was faster and had less hospital stay. Revision to LGBP showed better %EWL at 18 months.

Liquen plano ampolloso en la edad pediátrica, una adecuada respuesta al tratamiento con esteroide oral / Bullous lichen planus in children, an adequate response to treatment with oral steroid / Liquen plano bolhoso na idade pediátrica resposta adequada ao tratamento com esteróides por via oral

El liquen plano es una erupción pápulo-escamosa de la cual se han descrito numerosas variantes en su presentación clínica. Una de esas variantes es el liquen plano ampolloso, en la que se desarrollan vesículas y ampollas que se originan de las pápulas características del liquen plano, o rara vez, de piel de aspecto normal. Debido a la formación de ampollas, el diagnóstico diferencial incluye liquen plano penfigoide, penfigoide ampolloso, pénfigo vulgar, eritema multiforme e infección por virus del herpes, por lo tanto, el examen histopatológico es útil para el diagnóstico definitivo. Las opciones de tratamiento incluyen esteroides tópicos y sistémicos, retinoides sistémicos, fototerapia, antimaláricos y agentes inmunosupresores. Se presenta el caso de una niña con diagnóstico clínico de liquen plano ampolloso que fue confirmado por histopatología, destacando la importancia de conocer esta rara variante y demostrando la adecuada respuesta al tratamiento con esteroides orales.

Lichen planus is a papulosquamous eruption whith numerous clinical variants. One of these variants is bullous lichen planus in which vesicles and blisters develop originating from lichen planus papules, or rarely in normal-looking skin. Due to formation of blisters, differential diagnosis includes lichen planuspemphigoid, bullous pemphigoid, pemphigus vulgaris, erythema multiforme and herpes virus infection, therefore histopathological examination is essential for a definitive diagnosis. Teatment includes topical and systemic steroids, systemic retinoids, phototherapy, antimalarials and immunosuppressive agents. We report the case of a child with clinical diagnosis of bullous lichen planus confirmed by histopathology,emphazise the importance of this rare variant and demonstrating the adequate response to treatment with oral steroid.

O líquen plano é uma erupção papulo-escamosa com numerosas variantes em sua apresentação clinica. Dessas variantes clínicas, uma é o líquen plano bolhoso, onde vesículas e bolhas originam- -se das papulas características do líquen plano, ou raramente, na pele de aparência normal. Devido à formação de bolhas, o diagnóstico diferencial inclui líquen plano penfigóide, penfigoide bolhoso, pênfigo vulgar, eritema multiforme e infecção pelo vírus do herpes, por isso, o exame histopatológico é útil para o diagnóstico definitivo. As opções de tratamento incluem esteróides tópicos e sistêmicos, retinóides sistêmicos, fototerapia, antimaláricos e imunossupressores. O caso de uma criança com diagnóstico clínico de líquen plano bolhoso foi confirmado por histopatológia , é apresentado com destaque para a importância de conhecer esta variante rara e demonstrando resposta adequada ao tratamento com esteróides orais.