ADAM10 isoforms: optimizing usage of antibodies based on protein regulation, structural features, biological activity and clinical relevance to Alzheimer's disease.

A Disintegrin and Metalloproteinase 10 (ADAM10) is a crucial transmembrane protein involved in diverse cellular processes, including cell adhesion, migration, and proteolysis. ADAM10's ability to cleave over 100 substrates underscores its significance in physiological and pathological contexts, particularly in Alzheimer's disease (AD). This review comprehensively examines ADAM10's multifaceted roles, highlighting its critical function in the non-amyloidogenic processing of the amyloid precursor protein (APP), which mitigates amyloid beta (Aß) production, a critical factor in AD development. We summarize the regulation of ADAM10 at multiple levels: transcriptional, translational, and post-translational, revealing the complexity and responsiveness of its expression to various cellular signals. A standardized nomenclature for ADAM10 isoforms is proposed to improve clarity and consistency in research, facilitating better comparison and replication of findings across studies. We address the challenges in detecting ADAM10 isoforms using antibodies, advocating for standardized detection protocols to resolve discrepancies in results from different biological matrices. This review underscores the potential of ADAM10 as a biomarker for early diagnosis and a therapeutic target in AD. By consolidating current knowledge on ADAM10's regulation and function, we aim to provide insights that will guide future research and therapeutic strategies in the AD context.

Ocimum basilicum L. (basil) presents pro-apoptotic activity in an Ehrlich's experimental tumor murine model.

PURPOSE: This study aimed to evaluate the therapeutic effect of an ethanol extract of Ocimum basilicum L. (EEOb) aerial parts against Ehrlich's experimental tumor (EET) in mice. METHODS: Swiss mice were divided into two groups (control and treated; n = 6). On day 21, all mice were inoculated subcutaneously with 2 × 106 (0.05 mL) EET cells in the left paw for solid tumor development. This study lasted 28 days. Treatment began 24 hours after inoculation with EET. Measurements of dorsoplantar thickness were used to assess tumor growth. The paw pad was collected for histopathological analysis and stained using the argyrophilic nucleolar organizing regions (AgNOR) technique and immunohistochemistry for proliferating cell nuclear antigen, Bcl-2 and Bax. RESULTS: The treatment of animals with EEOb at 100 mg/kg intraperitoneally was able to reduce the growth (Control = 3.7 ± 0.1 mm vs. EEOb = 5.7 ± 0.2 mm) and the number of AgNORs of solid Ehrlich tumor. The antitumor effect of EEOb was associated with the induction of apoptosis of tumoral cell, as suggested by the reduction of the content of Bcl-2 induced by extract. CONCLUSIONS: The study demonstrated that daily administration of EEOb is able to reduce the growth of EET by induce apoptosis of tumoral cells.

A multispectral 3D live organoid imaging platform to screen probes for fluorescence guided surgery.

Achieving complete tumor resection is challenging and can be improved by real-time fluorescence-guided surgery with molecular-targeted probes. However, pre-clinical identification and validation of probes presents a lengthy process that is traditionally performed in animal models and further hampered by inter- and intra-tumoral heterogeneity in target expression. To screen multiple probes at patient scale, we developed a multispectral real-time 3D imaging platform that implements organoid technology to effectively model patient tumor heterogeneity and, importantly, healthy human tissue binding.

Preclinical targeting of liver fibrosis with a 89Zr-labeled Fibrobody® directed against platelet derived growth factor receptor-ß.

PURPOSE: Hepatic fibrosis develops as a response to chronic liver injury, resulting in the formation of fibrous scars. This process is initiated and driven by collagen-producing activated myofibroblasts which reportedly express high levels of platelet derived growth factor receptor-ß (PDGFRß). We therefore regard PDGFRß as an anchor for diagnosis and therapy. The Fibrobody® SP02SP26-ABD is a biparatopic VHH-construct targeting PDGFRß. Here, we explore its potential as a theranostic vector for liver fibrosis. METHODS: Specificity, cross-species binding, and cellular uptake of SP02SP26-ABD was assessed using human, mouse and rat PDGFRß ectodomains and PDGFRß-expressing cells. Cellular uptake by PDGFRß-expressing cells was also evaluated by equipping the Fibrobody® with auristatinF and reading out in vitro cytotoxicity. The validity of PDGFRß as a marker for active fibrosis was confirmed in human liver samples and 3 mouse models of liver fibrosis (DDC, CCl4, CDA-HFD) through immunohistochemistry and RT-PCR. After radiolabeling of DFO*-SP02SP26-ABD with 89Zr, its in vivo targeting ability was assessed in healthy mice and mice with liver fibrosis by PET-CT imaging, ex vivo biodistribution and autoradiography. RESULTS: SP02SP26-ABD shows similar nanomolar affinity for human, mouse and rat PDGFRß. Cellular uptake and hence subnanomolar cytotoxic potency of auristatinF-conjugated SP02SP26-ABD was observed in PDGFRß-expressing cell lines. Immunohistochemistry of mouse and human fibrotic livers confirmed co-localization of PDGFRß with markers of active fibrosis. In all three liver fibrosis models, PET-CT imaging and biodistribution analysis of [89Zr]Zr-SP02SP26-ABD revealed increased PDGFRß-specific uptake in fibrotic livers. In the DDC model, liver uptake was 12.15 ± 0.45, 15.07 ± 0.90, 20.23 ± 1.34, and 20.93 ± 4.35%ID/g after 1,2,3 and 4 weeks of fibrogenesis, respectively, compared to 7.56 ± 0.85%ID/g in healthy mice. Autoradiography revealed preferential uptake in the fibrotic (PDGFRß-expressing) periportal areas. CONCLUSION: The anti-PDGFRß Fibrobody® SP02SP26-ABD shows selective and high-degree targeting of activated myofibroblasts in liver fibrosis, and qualifies as a vector for diagnostic and therapeutic purposes.

Next generation single-domain antibodies against respiratory zoonotic RNA viruses.

The global impact of zoonotic viral outbreaks underscores the pressing need for innovative antiviral strategies, particularly against respiratory zoonotic RNA viruses. These viruses possess a high potential to trigger future epidemics and pandemics due to their high mutation rate, broad host range and efficient spread through airborne transmission. Recent pandemics caused by coronaviruses and influenza A viruses underscore the importance of developing targeted antiviral strategies. Single-domain antibodies (sdAbs), originating from camelids, also known as nanobodies or VHHs (Variable Heavy domain of Heavy chain antibodies), have emerged as promising tools to combat current and impending zoonotic viral threats. Their unique structure, coupled with attributes like robustness, compact size, and cost-effectiveness, positions them as strong alternatives to traditional monoclonal antibodies. This review describes the pivotal role of sdAbs in combating respiratory zoonotic viruses, with a primary focus on enhancing sdAb antiviral potency through optimization techniques and diverse administration strategies. We discuss both the promises and challenges within this dynamically growing field.

Photoimmuno-antimicrobial therapy for Staphylococcus aureus implant infection.

INTRODUCTION: Implant infections caused by Staphylococcus aureus are responsible for high mortality and morbidity worldwide. Treatment of these infections can be difficult especially when bacterial biofilms are involved. In this study we investigate the potential of infrared photoimmunotherapy to eradicate staphylococcal infection in a mouse model. METHODS: A monoclonal antibody that targets Wall Teichoic Acid surface components of both S. aureus and its biofilm (4497-IgG1) was conjugated to a photosensitizer (IRDye700DX) and used as photoimmunotherapy in vitro and in vivo in mice with a subcutaneous implant pre-colonized with biofilm of Staphylococcus aureus. A dose of 400 µg and 200 µg of antibody-photosensitizer conjugate 4497-IgG-IRDye700DXwas administered intravenously to two groups of 5 mice. In addition, multiple control groups (vancomycin treated, unconjugated IRDye700DX and IRDye700DX conjugated to a non-specific antibody) were used to verify anti-microbial effects. RESULTS: In vitro results of 4497-IgG-IRDye700DX on pre-colonized (biofilm) implants showed significant (p<0.01) colony-forming units (CFU) reduction at a concentration of 5 µg of the antibody-photosensitizer conjugate. In vivo, treatment with 4497-IgG-IRDye700DX showed no significant CFU reduction at the implant infection. However, tissue around the implant did show a significant CFU reduction with 400 µg 4497-IgG-IRDye700DX compared to control groups (p = 0.037). CONCLUSION: This study demonstrated the antimicrobial potential of photoimmunotherapy for selectively eliminating S. aureus in vivo. However, using a solid implant instead of a catheter could result in an increased bactericidal effect of 4497-IgG-IRDye700DX and administration locally around an implant (per operative) could become valuable applications in patients that are difficult to treat with conventional methods. We conclude that photoimmunotherapy could be a potential additional therapy in the treatment of implant related infections, but requires further improvement.

Nanobody-mediated targeting of zinc phthalocyanine with polymer micelles as nanocarriers.

Photodynamic therapy (PDT) is a suitable alternative to currently employed cancer treatments. However, the hydrophobicity of most photosensitizers (e.g., zinc phthalocyanine (ZnPC)) leads to their aggregation in blood. Moreover, non-specific accumulation in skin and low clearance rate of ZnPC leads to long-lasting skin photosensitization, forcing patients with a short life expectancy to remain indoors. Consequently, the clinical implementation of these photosensitizers is limited. Here, benzyl-poly(ε-caprolactone)-b-poly(ethylene glycol) micelles encapsulating ZnPC (ZnPC-M) were investigated to increase the solubility of ZnPC and its specificity towards cancers cells. Asymmetric flow field-flow fractionation was used to characterize micelles with different ZnPC-to-polymer ratios and their stability in human plasma. The ZnPC-M with the lowest payload (0.2 and 0.4% ZnPC w/w) were the most stable in plasma, exhibiting minimal ZnPC transfer to lipoproteins, and induced the highest phototoxicity in three cancer cell lines. Nanobodies (Nbs) with binding specificity towards hepatocyte growth factor receptor (MET) or epidermal growth factor receptor (EGFR) were conjugated to ZnPC-M to facilitate cell targeting and internalization. MET- and EGFR-targeting micelles enhanced the association and the phototoxicity in cells expressing the target receptor. Altogether, these results indicate that ZnPC-M decorated with Nbs targeting overexpressed proteins on cancer cells may provide a better alternative to currently approved formulations.

Predator-Prey Interaction Between Xylocoris sordidus (Hemiptera: Anthocoridae) and Enneothrips enigmaticus (Thysanoptera: Thripidae).

The peanut thrips, Enneothrips enigmaticus (Thysanoptera: Thrypidae), is an important pest of the peanut (Arachis hypogaea) in South America. Due to concerns about the environment and human health induced by the extensive use of pesticides in the management control of pests, environmentally and friendlier tactics must be targeted. Thus, this study investigates, for the first time, the behavior of Xylocoris sordidus (Hemiptera: Anthocoridae) as a biological control agent for E. enigmaticus. The methodology included no-choice tests to assess whether the predation rate varies according to the developmental stage of the prey, as well as the predator's developmental stage with the highest predation capacity. Additionally, an analysis of the functional response of adult and 5th instar nymphs of X. sordidus exposed to different densities of E. enigmaticus nymphs (1, 2, 4, 8, 16, and 32) was conducted. The results confirm the predation of peanut thrips by X. sordidus, with a higher predation rate in the nymphal stages of the prey. There was no difference in predation capacity between predator nymphs and adults, and exhibiting a type II functional response. Therefore, the potential of X. sordidus as a biological control agent for E. enigmaticus is confirmed, showing the importance of adopting measures to preserve this predator in peanut crops.

Erratum: Acute cellular and vascular responses to photodynamic therapy using EGFR-targeted nanobody-photosensitizer conjugates studied with intravital optical imaging and magnetic resonance imaging: Erratum.

[This corrects the article DOI: 10.7150/thno.37949.].

Structural characterization of the human DjC20/HscB cochaperone in solution.

J-domain proteins (JDPs) form a very large molecular chaperone family involved in proteostasis processes, such as protein folding, trafficking through membranes and degradation/disaggregation. JDPs are Hsp70 co-chaperones capable of stimulating ATPase activity as well as selecting and presenting client proteins to Hsp70. In mitochondria, human DjC20/HscB (a type III JDP that possesses only the conserved J-domain in some region of the protein) is involved in [FeS] protein biogenesis and assists human mitochondrial Hsp70 (HSPA9). Human DjC20 possesses a zinc-finger domain in its N-terminus, which closely contacts the J-domain and appears to be essential for its function. Here, we investigated the hDjC20 structure in solution as well as the importance of Zn+2 for its stability. The recombinant hDjC20 was pure, folded and capable of stimulating HSPA9 ATPase activity. It behaved as a slightly elongated monomer, as attested by small-angle X-ray scattering and SEC-MALS. The presence of Zn2+ in the hDjC20 samples was verified, a stoichiometry of 1:1 was observed, and its removal by high concentrations of EDTA and DTPA was unfeasible. However, thermal and chemical denaturation in the presence of EDTA led to a reduction in protein stability, suggesting a synergistic action between the chelating agent and denaturators that facilitate protein unfolding depending on metal removal. These data suggest that the affinity of Zn+2 for the protein is very high, evidencing its importance for the hDjC20 structure.

A Correlational Study Between Executive Functions and Conditional Discriminations in Children with Autism / Um Estudo Correlacional Entre Funções Executivas e Discriminações Condicionais em Crianças com Autismo

Abstract Neuropsychology is a science that allows tracing the profile of cognitive impairments and preserved skills to design appropriate treatments and educational practices aiming at a better quality of life for the individual. This is basic correlational research, which objective was to verify if the results found in the executive functions in children with autism spectrum disorder (ASD) are predictive of or have some correlation with the performance in conditional discrimination through choice tasks according to the identity matching-to-sample (MTS) model. Correlations revealed significant associations between neuropsychological tests and MTS tasks. Future research may further explore MTS tasks for the assessment and intervention of individuals with ASD.

Resumo A Neuropsicologia é uma ciência que permite traçar o perfil dos comprometimentos cognitivos e habilidades preservadas a fim de delinear tratamentos e práticas educativas adequadas, almejando melhor qualidade de vida do indivíduo. Trata-se de uma pesquisa básica correlacional, cujo objetivo foi verificar se os resultados encontrados nas funções executivas em crianças com Transtorno do Espectro do Autismo (TEA) são preditivas de ou tem alguma correlação com o desempenho em discriminação condicional por meio de tarefas de escolha de acordo com o modelo MTS de identidade. As correlações revelaram associações significativas entre os testes neuropsicológicos e as tarefas de MTS. Pesquisas futuras poderão explorar melhor as tarefas de MTS para avaliação e intervenção de indivíduos com TEA.

Correlation between symptoms of autism in children and personality traits in parents / Correlação entre sintomas de autismo em crianças e traços de personalidade em pais / Correlación entre síntomas de autismo en niños y rasgos de personalidad en padres

Parents of children with autism spectrum disorder may be more likely to have a mental disorder, both due to genetic and environmental reasons. A cross-sectional study involving 161 children, 161 mothers and 108 fathers. Diagnosis followed the criteria established in DSM-5. Symptom severity was evaluated using the Childhood Autism Rating Scale. The Factorial Personality Inventory served to evaluate parents' personality traits. Several correlations were found between mothers and fathers personality traits and children symptoms. In both parents, personality traits associated with greater intransigence/less flexibility and fewer social skills were those associated with more severe autism symptoms in the children.

Os pais de crianças com transtorno do espectro do autismo podem ter maior probabilidade de ter um transtorno mental, devido a razões genéticas e ambientais. Estudo transversal envolvendo 161 crianças, 161 mães e 108 pais. O diagnóstico seguiu os critérios estabelecidos no DSM - 5. A gravidade dos sintomas foi avaliada usando a Escala de Classificação do Autismo na Infância. O Inventário Fatorial de Personalidade foi utilizado para avaliar os traços de personalidade dos pais. Várias correlações foram encontradas entre traços de personalidade de mães e pais e sintomas de crianças. Em ambos os pais, os traços de personalidade associados a maior intransigência / menor flexibilidade e menos habilidades sociais foram os associados a sintomas mais graves de autismo nas crianças.

Los padres de niños con trastorno del espectro autista pueden ser más propensos a tener un trastorno mental, tanto por razones genéticas como ambientales. Se trata de un estudio transversal con 161 niños, 161 madres y 108 padres. El diagnóstico siguió los criterios establecidos en el DSM-5. La gravedad de los síntomas se evaluó mediante la Escala de calificación de autismo infantil. El Inventario Factorial de Personalidad sirvió para evaluar los rasgos de personalidad de los padres. Se encontraron varias correlaciones entre los rasgos de personalidad de las madres y los padres y los síntomas de los niños. En ambos padres, los rasgos de personalidad asociados con una mayor intransigencia / menor flexibilidad y menos habilidades sociales fueron los asociados con síntomas de autismo más severos en los niños.

Fruit quality of west indian cherry irrigated with saline waters under combinations of nitrogen/potassium fertilization / Qualidade de frutos de aceroleira irrigada com águas salinas sob combinações de adubação nitrogenada / potássica

West Indian cherry stands out among the fruits cultivated for the pharmacological and alimentary importance, but its quality can be affected by irrigation water salinity and fertilization management. In this context, this study aimed to evaluate the effect of irrigation water of different salinities and combinations of nitrogen and potassium fertilization on the physical and physico-chemical quality of bioactive compounds in West Indian cherry fruits. The experiment was carried out in the field, using lysimeters of 60 L, in the Experimental Area of the Centro de Ciências e Tecnologia Agroalimentar (CCTA) of Universidade Federal de Campina Grande (UFCG), Pombal, PB, in a randomized block design, with treatments arranged in a 5 x 4 factorial scheme, referring to five irrigation water salinities (ECw): 0.3, 1.3, 2.3, 3.3 and 4.3 dS m-1 and four combinations (C) of doses of nitrogen (N) and potassium (K2O): C1 = 70% N + 50% K2O; C2 = 100% N + 75% K2O; C3 = 130% N + 100% K2O and C4 = 160% N + 125% K2O, of the recommended dose for West Indiancherry, with three replicates and one plant per plot consisting of a lysimeter. The cv. Flor Branca grafted on cv. Junco was used in the study. The increase in salinity of irrigation water reduced the size, weight and vitamin C content of the fruits, but, the combinations of N and K fertilization did not affect fruit shape and the content of anthocyanin, carotenoids, pH, titratable acidity, total soluble solids and fruit flavor. Fertilization combinations consisting of C1 and C2 treatments promoted the largest fruit size under irrigation with ECw of up to 1.3 dS m-1 and greater mass accumulation. Fertilization doses above C2 combinations negatively affected fruit quality.

A aceroleira se destaca entre as fruteiras cultivadas pela importância farmacológica e alimentícia de seus frutos, porém sua qualidade pode ser afetada pela salinidade da água de irrigação e o manejo da adubação. Neste sentido, objetivou-se com o trabalho estudar o efeito de diferentes salinidades da água de irrigação e de combinações de adubação nitrogenada e potássica sobre a qualidade física, físico-química e de compostos bioativos em frutos de aceroleira. O experimento foi conduzido em campo, usando lisímetros de 60 L, na Área Experimental do Centro de Ciências e Tecnologia Agroalimentar (CCTA) da Universidade Federal de Campina Grande (UFCG), Pombal, PB, em delineamento de blocos ao acaso e esquema fatorial 5 x 4, referentes a cinco níveis de salinidade da água de irrigação (CEa): 0,3; 1,3; 2,3; 3,3 e 4,3 dS m-1 e quatro combinações (C) de adubação nitrogenada e potássica: C1 = 70% N + 50% K2O; C2 = 100% N + 75% K2O; C3 = 130% N + 100% K2O e C4 = 160% N + 125% K2O da dose recomendada para aceroleira, com três repetições e uma planta por parcela constituída de um lisímetro. Estudou-se a cv. Flor Branca enxertada sobre porta-enxerto da cv. Junco, sendo a qualidade dos frutos avaliada entre 260 e 295 dias após o transplantio. O incremento na salinidade da água de irrigação reduziu o tamanho, o peso e o teor de vitamina C nas acerolas, porém, assim como as combinações de adubação de N e K, não afetaram o formato de frutos e os teores de antocianinas, carotenoides, pH, acidez titulável, sólidos solúveis totais e o sabor dos frutos. As combinações de adubação C1 e C2 proporcionaram o maior tamanho de frutos pela irrigação com CEa de até 1,3 dS m-1 e promoveram maior acúmulo de massa. Doses de fertilização acima da combinação C2 afetaram negativamente a qualidade dos frutos mesmo em plantas irrigadas com água de baixa salinidade.

Pesquisas brasileiras sobre o transtorno do desenvolvimento da coordenação: uma revisão à luz da teoria bioecológica / Brazilian research on the development of coordination development: a review in the light of bioecological theory

Resumo Introdução Crianças com Transtorno do Desenvolvimento da Coordenação (TDC) apresentam desordens motoras que comprometem seu engajamento em ocupações. Objetivo Adotando-se a Teoria Bioecológica do Desenvolvimento Humano (TBDH) como base para o exame das produções sobre o TDC, este estudo objetivou identificar e discutir os elementos do modelo Processo-Pessoa-Contexto-Tempo (PPCT) na produção científica nacional sobre crianças com TDC. Método A primeira fase do estudo consistiu na revisão integrativa da literatura científica nacional sobre o TDC em periódicos indexados na Biblioteca Virtual em Saúde e SciELO, a partir de descritores em saúde. A segunda fase consistiu no cotejamento dos elementos do modelo PPCT na literatura selecionada. Resultados A amostra, composta por 19 estudos, apresentou predomínio da metodologia quantitativa e estudos transversais. Os elementos do núcleo Pessoa estiveram presentes em todas as pesquisas. O desempenho motor foi a condição central para a identificação do TDC e correlação com outras variáveis clínicas, de saúde e sociais. Nos processos proximais prevaleceram o microssistema familiar e escolar. No núcleo Tempo destacou-se a importância do diagnóstico e intervenção precoce e especificidades dos eventos de vida normativos da criança. A revisão revelou o intenso uso do Movement Assessment Battery for Children (MABC) como instrumento de identificação e a importância de medidas mais amplas do desenvolvimento da criança com TDC. Conclusão A análise das pesquisas à luz da teoria bioecológica traz à reflexão importantes aspectos do desenvolvimento da criança e mostra-se uma lacuna na literatura em relação aos estudos sobre TDC que contemplem o macrossistema com ênfase nas políticas nacionais de saúde e educação.

Abstract Introduction Children with Developmental Coordination Disorder (DCD) present motor disorders that compromise their engagement in occupations. Objective Adopting the Bioecological Theory of Human Development (BTHD) as a basis for examining the productions of DCD, this study aimed to identify and discuss the elements of the Process-Person-Context-Time model (PPCT) in the national scientific production about children with DCD. Method The first phase of the study consisted of an integrative review of the national scientific literature on DCD in journals indexed in Virtual Health Library and SciELO, based on health descriptors. The second phase consisted of collating the elements of the PPCT model in the selected literature. Results The sample, composed of 19 studies, showed a predominance of quantitative methodology and cross-sectional studies. Elements of the core Person were present in all searches. Motor performance was the central condition for the identification of DCD and correlation with other clinical, health and social variables. In the proximal processes, the family and school microsystem prevailed. In the core Time, the importance of diagnosis and early intervention, and specificities of normative life events of the child were highlighted. The review revealed the intense use of the Movement Assessment Battery for Children (MABC) as an instrument of identification and the importance of broader measures for the development of children with DCD. Conclusion The analysis of research in the light of the bioecological theory made us think about important aspects of child development and there is a gap in the literature in relation to studies on DCD that contemplate the macrosystem with emphasis in the national health and education policies.

O uso da toxina botulínica na correção do sorriso gengival: revisão de literatura / The use of botulinal toxin in the correction of gengival smile: literature review

In recent years, the demand for an increasingly aesthetic smile has been increasing in the clinical routine, due to this fact, countless patients look for treatments in order to improve the aesthetic appearance of your smile. It is denominated gingival smile, for individuals who present a gingival exposure with more than 3 mm during the act of smiling. Thus, among the possibilities of treatment for gingival smile, botulinum toxin has been widely used to promote a more harmonic smile. Thus, the objective of this work is to review the literature on the application of botulinum toxin in the treatment of gingival smile. The main advantages of using botulinum toxin as a therapeutic alternative for cases of gingival smile are the high tolerability of the patient, a low rate of complications, the ease of using the technique, and an almost immediate and natural effect. However, due to the disadvantage, it is possible to emphasize mainly in the short time of its effects, being necessary the maintenance. Thus, it is up to the dentist to perform a detailed anamnesis to select the most appropriate technique and promote the best treatment for the patient. (AU)

Nos últimos anos, a demanda por um sorriso cada vez mais estético vêm se tornando comum na rotina clínica. Devido a esse fato, inúmeros pacientes procuram por tratamentos com o intuito de melhorar a aparência estética do seu sorriso. Denomina-se sorriso gengival, indivíduos que apresentam uma exposição gengival com mais de 3 mm durante o ato de sorrir. Desse modo, dentre as possibilidades de tratamento para o sorriso gengival, a toxina botulínica tem sido muito utilizada para promover um sorriso mais harmônico do paciente de forma menos traumática. Assim, o objetivo deste trabalho é revisar a literatura sobre a aplicação da toxina botulínica no tratamento do sorriso gengival. As principais vantagens de se utilizar a toxina botulínica como alternativa terapêutica para os casos de sorriso gengival são a alta tolerância pelo paciente, baixo índice de complicações, facilidade de se empregar a técnica, efeito praticamente imediato e natural. Contudo, por desvantagem pode-se destacar principalmente a curto período de tempo de seus efeitos, sendo necessário a manutenção. Dessa forma, cabe ao cirurgião-dentista realizar uma anamnese minuciosa para selecionar a técnica mais adequada e promover o melhor tratamento para o paciente (AU)

Sources of self-efficacy for motor learning in children: systematic literature review in clinical trials / Fontes de autoeficácia para aprendizagem motora em crianças: revisão sistemática da literatura em ensaios clínicos

Abstract This study aimed to verify the effects of intervention models on the motor activity of children elaborated from the self-efficacy theory. The systematic review of randomized controlled clinical trials with the PRISMA strategy was used. Sixteen studies were descriptively analyzed and revealed that knowledge based on the self-efficacy theory related to motor activity has been more frequently integrated into broad intervention programs in the school environment, collectively applied, stimulating aspects related to children's health and prevention of childhood obesity. Important results were obtained in the development of self-efficacy and motor activity stimulation; however, results are not conclusive regarding the mediation among these variables. Contributions for intervention programs are detailed in this manuscript, allowing the visualization of strategies to build a mastery context, favoring the establishment of an adequate concept of motor self-efficacy in children and the development of self-regulation skills.

Resumo Este estudo teve por objetivo verificar os efeitos de modelos de intervenções sobre a atividade motora de crianças elaboradas a partir da teoria da autoeficácia. Utilizou-se a revisão sistemática de ensaios clínicos controlados randomizados empregando a estratégia PRISMA. Dezesseis estudos foram analisados descritivamente e revelaram que o conhecimento a partir da teoria da autoeficácia relacionada à atividade motora têm sido integrados com maior frequência em programas de intervenção em ambiente escolar, empregados de forma coletiva, estimulando aspectos relacionados à saúde das crianças e prevenção da obesidade infantil. Resultados importantes foram obtidos no desenvolvimento da autoeficácia e estímulo à atividade motora, mas não são conclusivos quanto à mediação entre essas variáveis. Contribuições acerca dos programas de intervenção são detalhadas nesse manuscrito permitindo visualizar estratégias de construção de um contexto de maestria, favorável ao estabelecimento de um adequado conceito de autoeficácia motora nas crianças e desenvolvimento de suas habilidades autorregulatórias.

Estimulação nervosa elétrica transcutânea (TENS) no tratamento da vulvodínia localizada provocada: revisão sistemática / Transcutaneous nervous electric stimulation (TENS) in the treatment of localized provoked vulvodynia: systematic review

Objetivo: Verificar a eficácia da TENS no tratamento de mulheres com vulvodínia localizada provocada. Métodos: Buscou-se, nas bases de dados SciELO, PEDro e PubMed, por estudos que utilizaram a TENS como tratamento da vulvodínia localizada provocada. Resultados: Dos 50 artigos recuperados, três foram analisados: dois ECRs e um estudo de coorte longitudinal não controlado. Conclusão: A TENS pode ser eficaz como uma opção de tratamento na melhora da dor vulvar, sendo uma opção de baixo custo, não invasivo e de fácil manejo; assim como outras terapias combinadas, parece ter um efeito positivo e benéfico no tratamento da vulvodínia localizada provocada. (AU)

Objective: To verify the efficacy of TENS in the treatment of women with localized provoked vulvodynia. Methods: Searched the databases SciELO, PEDro, PubMed, for studies that used TENS as a treatment of localized vulvodynia. Results: Of the 50 articles retrieved, 3 articles were analyzed: 2 RCTs, 1 uncontrolled longitudinal cohort study. Conclusion: The TENS can be effective as a treatment option in improving vulvar pain and is a low-cost, non-invasive and easy to use option, as well as other combined therapies, which appears to have a positive and beneficial effect in the treatment of localized provoked vulvodynia.(AU)

Leep in the treatment of cin and its impact on the reduction of mortality of cervical cancer / A cirurgia de alta frequência no tratamento da neoplasia intraepitelial cervical e seu impacto na redução da mortalidade por câncer cervical

Introduction: The adequate treatment of cervical intraepithelial neoplasia (CIN) is an important component of cervical cancer prevention programs and its inadequate management may increase the future risk of neoplasia. Objective: To evaluate the role of loop electrosurgical excision procedure (LEEP) conization in the treatment of CIN, in an important state capital in southern Brazil, and to determine the impact on reducing cervical cancer mortality in the next 20 years. Methods: A retrospective cohort study was conducted in patients who underwent CIN treatment from January 1999 to December 2007 at Erasto Gaertner Hospital, analyzing the treatment morbidity and recurrence rate of the disease, using the χ2 test for statistical analysis and p≤0.05. Results: A total of 1,550 women, between 14 and 93 years of age (35±11.42) were evaluated. Recurrence rate was 6.8%. The postoperative complications were 5.8% bleeding, 2% cervical stenosis and 2% infection. The cervical cancer mortality rate decreased from 12 to 3.8/100,000 women and there was an increase in the incidence of the lesion in situ as opposed to the reduction of other clinical stages. Conclusion: LEEP conization was proven to be a highly effective tool in CIN treatment, substantially contributing to the reduction of mortality from cervical cancer, justifying its use in a systematic way in prevention programs.

Introdução: O adequado tratamento da neoplasia intraepitelial cervical é um importante componente dos programas de prevenção do câncer cervical, e seu manejo inadequado pode aumentar o risco futuro de progressão para neoplasia. Objetivo: Avaliar os resultados da cirurgia de alta frequência no tratamento da neoplasia intraepitelial cervical em uma importante capital do Sul do país e o impacto na redução da mortalidade por câncer cervical nos 20 anos subsequentes. Métodos: Estudo tipo coorte retrospectivo de pacientes submetidas a tratamento da neoplasia intraepitelial cervical, no período de janeiro de 1999 a dezembro de 2007, no Serviço de Patologia Cervical do Hospital Erasto Gaertner, Curitiba, Brasil, analisando a morbidade do tratamento e o risco de recorrência da doença utilizando o teste das proporções (χ2 ) e valor p≤0,05, relacionando esses dados às taxas de mortalidade no período dos últimos 20 anos. Resultados: O número de 1.550 pacientes, com idade entre 14 e 93 anos (35,3±11,42). A taxa de recidiva foi 6,8%. As complicações pós-operatórias foram 5,8% de sangramento, 2% de estenose de colo e 2% de infecção. A taxa de mortalidade para câncer de colo na cidade de Curitiba caiu de 12 para 3,8 casos/100mil mulheres, ocorrendo o aumento da incidência da lesão in situ em contraposição à redução dos demais estadios clínicos. Conclusão: a cirurgia de alta frequência mostrou-se um instrumento relevante e de alta eficácia no tratamento da neoplasia intraepitelial cervical, contribuindo de forma efetiva para a redução da mortalidade por câncer de colo uterino, justificando seu uso de maneira sistemática dentro dos programas de prevenção.