Reinventando a participação no SUS: o controle social em defesa da Democracia e do Direito à Saúde - 30 anos do Conselho Municipal de Saúde de Porto Alegre! / Reinventing participation in the SUS: social control in defense of Democracy and the Right to Health - 30 years of the Porto Alegre Municipal Health Council!

Este livro celebra os 30 anos do Conselho Municipal de Saúde de Porto Alegre e reúne um conjunto de textos que apresentam e discutem ações e lutas ocorridas a partir de 2017 relacionadas ao CMS-POA, buscando sistematizar e dar visibilidade aos temas emergentes e principais desafios enfrentados no período. O CMS-POA tem a tradição de compartilhar seu percurso e suas reflexões por meio de notas públicas, manifestos e, a cada quinquênio, um livro. Os livros comemorativos têm se consolidado ao longo dos 15, 20, 25 e agora 30 anos do Conselho. Os registros memoriais dessa trajetória constituem um movimento de resistência e refundação dos fazeres do Conselho, que tem enfrentado o desafio de monitorar e consolidar o SUS na cidade. Nesse livro, em especial, buscamos aprofundar o tema emergente do empresariamento da Saúde, mas também de ações e projetos desenvolvidos pelo CMS-POA e por seus parceiros, o que demanda reflexões sobre o atual cenário das políticas de saúde e dos interesses em disputa. Os textos foram escritos por parceiros históricos do Conselho que conosco acreditam que saúde é democracia e, portanto, se faz com participação social.

The ecotin-like peptidase inhibitor of Trypanosoma cruzi prevents TMPRSS2-PAR2-TLR4 crosstalk downmodulating infection and inflammation.

Trypanosoma cruzi is the causative agent of Chagas disease, a chronic pathology that affects the heart and/or digestive system. This parasite invades and multiplies in virtually all nucleated cells, using a variety of host cell receptors for infection. T. cruzi has a gene that encodes an ecotin-like inhibitor of serine peptidases, ISP2. We generated ISP2-null mutants (Δisp2) in T. cruzi Dm28c using CRISPR/Cas9. Epimastigotes of Δisp2 grew normally in vitro but were more susceptible to lysis by human serum compared to parental and ISP2 add-back lines. Tissue culture trypomastigotes of Δisp2 were more infective to human muscle cells in vitro, which was reverted by the serine peptidase inhibitors aprotinin and camostat, suggesting that host cell epitheliasin/TMPRSS2 is the target of ISP2. Pretreatment of host cells with an antagonist to the protease-activated receptor 2 (PAR2) or an inhibitor of Toll-like receptor 4 (TLR4) selectively counteracted the increased cell invasion by Δisp2, but did not affect invasion by parental and add-back lines. The same was observed following targeted gene silencing of PAR2, TLR4 or TMPRSS2 in host cells by siRNA. Furthermore, Δisp2 caused increased tissue edema in a BALB/c mouse footpad infection model after 3 h differently to that observed following infection with parental and add-back lines. We propose that ISP2 contributes to protect T. cruzi from the anti-microbial effects of human serum and to prevent triggering of PAR2 and TLR4 in host cells, resulting in the modulation of host cell invasion and contributing to decrease inflammation during acute infection.

Nav1.8 in small dorsal root ganglion neurons contributes to vincristine-induced mechanical allodynia.

Vincristine-induced peripheral neuropathy (VIPN) is a common side effect of vincristine treatment, which is accompanied by pain and can be dose-limiting. The molecular mechanisms that underlie vincristine-induced pain are not well understood. We have established an animal model to investigate pathophysiological mechanisms of vincristine induced pain. Our previous studies have shown that the tetrodotoxin-sensitive (TTX-S) voltage-gated sodium channel NaV1.6 in medium-diameter dorsal root ganglion (DRG) neurons contributes to the maintenance of vincristine-induced allodynia. In this study, we investigated the effects of vincristine administration on excitability in small-diameter DRG neurons and whether the tetrodotoxin-resistant (TTX-R) NaV1.8 channels contribute to mechanical allodynia. Current-clamp recordings demonstrated that small DRG neurons become hyper-excitable following vincristine treatment, with both reduced current threshold and increased firing frequency. Using voltage-clamp recordings in small DRG neurons we now show an increase in TTX-R current density and a -7.3 mV hyperpolarizing shift in V1/2 of activation of NaV1.8 channels in vincristine-treated animals, which likely contributes to the hyperexcitability that we observed in these neurons. Notably, vincristine treatment did not enhance excitability of small DRG neurons from NaV1.8 knockout mice, and the development of mechanical allodynia was delayed but not abrogated in these mice. Together, our data suggest that sodium channel NaV1.8 in small DRG neurons contributes to the development of vincristine-induced mechanical allodynia.

A promising pipeline of preclinical drug candidates for leishmaniasis and chronic Chagas' disease.

The drug discovery pipeline for leishmaniasis and trypanosomiasis has been filling with novel chemical entities with known mechanisms of action. González et al. and Braillard et al. report a cytochrome bc1 complex inhibitor as another promising preclinical candidate for visceral leishmaniasis (VL) and, in combination with benznidazole, for chronic Chagas' disease (CCD).

Validação de conteúdo e análise semântica de inquérito CAP sobre conhecimentos, atitudes e práticas das avós no contexto da amamentação / Content validation and semantic analysis of a KAP survey on grandmothers' knowledge, attitudes, and practices in the context of breastfeeding / Validación del contenido y análisis semántico de una encuesta CAP sobre conocimientos, actitudes y prácticas de las abuelas en el contexto de la lactancia materna

Objetivo: avaliar a validade de conteúdo e a semântica de um inquérito sobre conhecimentos, atitudes e práticas das avós no contexto da amamentação. Métodos: pesquisa metodológica, de validação de conteúdo de inquérito Conhecimentos, Atitudes e Práticas (CAP) por especialistas e análise semântica por meio da compreensibilidade dos itens pelas avós de crianças em amamentação. Foram calculados os índices de validade de conteúdo, dos itens e da escala, e teste binomial. Para análise semântica foram calculadas as frequências absolutas e as relativas da compreensão dos itens. Resultados: participaram 22 especialistas, e dez avós. O índice de validade de conteúdo do inquérito CAP tanto para versão pré-teste como pós-teste foi de 0,94. Uma questão da versão pré-teste e duas questões da versão pós-teste não alcançaram compreensão > 90%. Foi excluída uma questão do inquérito e 21 foram reformuladas, resultando em 45 itens distribuídos em três domínios: conhecimentos (23 itens), atitudes (oito itens) e práticas (14 itens). Conclusão:as versões finais do pré e pós-teste do inquérito de conhecimentos, atitudes e práticas das avós sobre a amamentação, alcançaram validade de conteúdo e de semântica compatível para sua utilização.

Objective: assessing the content and semantic validity of a survey on grandmothers' knowledge, attitudes, and practices in the context of breastfeeding. Methods: methodological research for content validation of a Knowledge, Attitudes, and Practices (KAP) survey by experts and semantic analysis through the comprehensibility of the items by grandmothers of breastfeeding children. Content validity indices were calculated for the items and the scale, as well as the binomial test. Absolute and relative frequencies of understanding of the items were calculated for the semantic analysis. Results: participants were 22 experts and ten grandmothers. The content validity index of the KAP survey for both the pre-test and post-test versions was 0.94. One question in the pre-test version and two questions in the post-test version did not reach > 90% comprehension. One question was excluded from the survey and 21 were reworded, resulting in 45 items distributed into three domains: knowledge (23 items), attitudes (8 items), and practices (14 items). Conclusion: the final pre- and post-test versions of the survey of grandmothers' knowledge, attitudes, and practices on breastfeeding achieved content and semantic validity compatible with its use.

Objetivo: evaluación de la validez semántica y de contenido de una encuesta sobre conocimientos, actitudes y prácticas de las abuelas en el contexto de la lactancia materna. Métodos: investigación metodológica, validación del contenido de la encuesta Conocimiento, Actitudes y Prácticas (CAP) por expertos y análisis semántico a través de la comprensibilidad de los ítems por abuelas de niños lactantes. Se calcularon índices de validez de contenido para los ítems y la escala, así como la prueba binomial. Para el análisis semántico, se calcularon las frecuencias absolutas y relativas de comprensión de los ítems. Resultados: participaron 22 expertos y diez abuelas. El índice de validez de contenido de la encuesta CAP, tanto para la versión pre-test como para la post-test, fue de 0,94. Una pregunta de la versión pre-test y dos preguntas de la versión post-test no alcanzaron > 90% de comprensión. Se excluyó una pregunta de la encuesta y se reformularon 21, con lo que se obtuvieron 45 ítems distribuidos en tres ámbitos: conocimientos (23 ítems), actitudes (8 ítems) y prácticas (14 ítems). Conclusión: las versiones finales pre y post de la encuesta sobre conocimientos, actitudes y prácticas de las abuelas en materia de lactancia materna alcanzaron validez de contenido y semántica compatible con su uso.

Risk classification and door-to-antibiotic time in patients with suspected sepsis. / Clasificación de riesgo y tiempo puerta-antibiótico en pacientes con sospecha de sepsis.

OBJECTIVE: to evaluate the association between risk classification and door-to-antibiotic time in patients with suspected sepsis. METHOD: retrospective cohort study, with a sample of 232 patients with suspected sepsis treated at the emergency department. They were divided into 2 groups: with and without risk classification. Once the door-to-antibiotic time was identified, one-way analysis of variance was performed with Bonferroni post hoc test or independent Student's t-test for continuous quantitative variables; Pearson correlation tests, point-biserial correlation or biserial correlation for association analyses; and bootstrap procedure when there was no normal distribution of variables. For data analysis, the Statistical Package for the Social Sciences software was used. RESULTS: the door-to-antibiotic time did not differ between the group that received risk classification compared to the one that was not classified. Door-to-antibiotic time was significantly shorter in the group that received a high priority risk classification. CONCLUSION: there was no association between door-to-antibiotic time and whether or not the risk classification was performed, nor with hospitalization in infirmaries and intensive care units, or with the length of hospital stay. It was observed that the higher the priority, the shorter the door-to-antibiotic time.

Clasificación de riesgo y tiempo puerta-antibiótico en pacientes con sospecha de sepsis / Risk classification and door-to-antibiotic time in patients with suspected sepsis / Classificação de risco e tempo porta-antibiótico no paciente com suspeita de sepse

Objetivo: evaluar la asociación entre la clasificación de riesgo y el tiempo puerta-antibiótico en pacientes con sospecha de sepsis. Método: estudio de cohorte retrospectivo, con una muestra de 232 pacientes con sospecha de sepsis atendidos en el departamento de emergencias. Se dividieron en 2 grupos: con y sin clasificación de riesgo. Una vez identificado el tiempo puerta-antibiótico, se realizó un análisis de varianza de un factor con la prueba post hoc de Bonferroni o la prueba t de Student independiente para variables cuantitativas continuas; pruebas de correlación de Pearson, correlación biserial puntual o correlación biserial para análisis de asociación; y procedimiento de bootstrap cuando no había distribución normal de variables. Para el análisis de los datos se utilizó el software Statistical Package for the Social Sciences. Resultados: el tiempo puerta-antibiótico no difirió entre el grupo que recibió clasificación de riesgo en comparación con el que no fue clasificado. El tiempo puerta-antibiótico fue significativamente más corto en el grupo que recibió una clasificación de riesgo de alta prioridad. Conclusión: no hubo asociación entre el tiempo puerta-antibiótico y si se realizó o no la clasificación de riesgo, ni con la hospitalización en enfermería y en unidad de cuidados intensivos, ni con la duración de la estancia hospitalaria. Se observó que cuanto mayor era la prioridad, más corto era el tiempo puerta-antibiótico.

Objective: to evaluate the association between risk classification and door-to-antibiotic time in patients with suspected sepsis. Method: retrospective cohort study, with a sample of 232 patients with suspected sepsis treated at the emergency department. They were divided into 2 groups: with and without risk classification. Once the door-to-antibiotic time was identified, one-way analysis of variance was performed with Bonferroni post hoc test or independent Student's t-test for continuous quantitative variables; Pearson correlation tests, point-biserial correlation or biserial correlation for association analyses; and bootstrap procedure when there was no normal distribution of variables. For data analysis, the Statistical Package for the Social Sciences software was used. Results: the door-to-antibiotic time did not differ between the group that received risk classification compared to the one that was not classified. Door-to-antibiotic time was significantly shorter in the group that received a high priority risk classification. Conclusion: there was no association between door-to-antibiotic time and whether or not the risk classification was performed, nor with hospitalization in infirmaries and intensive care units, or with the length of hospital stay. It was observed that the higher the priority, the shorter the door-to-antibiotic time.

Objetivo: avaliar a associação entre a realização de classificação de risco e o tempo porta-antibiótico no paciente com suspeita de sepse. Método: estudo de coorte retrospectivo, com amostra de 232 pacientes com suspeita de sepse atendidos no pronto atendimento. Foram distribuídos em 2 grupos: com e sem classificação de risco. Identificado o tempo porta-antibiótico, realizou-se análise de variância de um fator com post hoc de Bonferroni ou teste T-Student independente para variáveis quantitativas contínuas; testes de correlação de Pearson, correlação bisserial por pontos ou correlação bisserial para análises de associação; e procedimento de bootstrap quando não havia distribuição normal de variáveis. Para a análise dos dados foi utilizado o software Statistical Package for the Social Sciences. Resultados: o tempo porta-antibiótico não diferiu entre o grupo que recebeu classificação de risco comparado ao que não foi classificado. O tempo porta-antibiótico foi significativamente menor no grupo que recebeu classificação de risco de alta prioridade. Conclusão: não houve associação entre o tempo porta-antibiótico e a realização ou não da classificação de risco, tampouco com internação em enfermaria e em unidade de terapia intensiva, ou com o tempo de internação hospitalar. Observou-se que quanto maior a prioridade, menor o tempo porta-antibiótico.

8-Methoxy-α-lapachone and lawsone: antiproliferative effects on bladder tumour cells.

Quinones are chemical compounds produced from the oxidation of phenols. Among the quinones, naphthoquinones stand out as potential antitumor agents. Bladder tumour is the tenth most diagnosed in the world. Based on this, using a urothelial carcinoma cell line (T24), two naphthoquinones had their cytotoxicity tested by the MTT colorimetric method and were submitted to assays of clonogenic survival, morphology, cell cycle, cell migration and species reactive oxygen. The results showed 8-methoxy-α-lapachone and lausone presented selectivity indexes (19.5 and 28.0, respectively) for T24 cells. Moreover, the two naphthoquinones reduced the cell viability, interfered with the process of cell migration, changed the cell cycle kinectics and induced the production of species reactive oxygen (ROS). Additionaly, 8-methoxy-α-lapachone altered the morphology of the cells. In conclusion, the studied naphthoquinones showed potential antiproliferative effects in bladder cancer cells, interfering in cellular processes, possibly through oxidative stress.

LncRNA JHDM1D-AS1 Is a Key Biomarker for Progression and Modulation of Gemcitabine Sensitivity in Bladder Cancer Cells.

Long non-coding RNAs are frequently found to be dysregulated and are linked to carcinogenesis, aggressiveness, and chemoresistance in a variety of tumors. As expression levels of the JHDM1D gene and lncRNA JHDM1D-AS1 are altered in bladder tumors, we sought to use their combined expression to distinguish between low-and high-grade bladder tumors by RTq-PCR. In addition, we evaluated the functional role of JHDM1D-AS1 and its association with the modulation of gemcitabine sensitivity in high-grade bladder-tumor cells. J82 and UM-UC-3 cells were treated with siRNA-JHDM1D-AS1 and/or three concentrations of gemcitabine (0.39, 0.78, and 1.56 µM), and then submitted to cytotoxicity testing (XTT), clonogenic survival, cell cycle progression, cell morphology, and cell migration assays. When JHDM1D and JHDM1D-AS1 expression levels were used in combination, our findings indicated favorable prognostic value. Furthermore, the combined treatment resulted in greater cytotoxicity, a decrease in clone formation, G0/G1 cell cycle arrest, morphological alterations, and a reduction in cell migration capacity in both lineages compared to the treatments alone. Thus, silencing of JHDM1D-AS1 reduced the growth and proliferation of high-grade bladder-tumor cells and increased their sensitivity to gemcitabine treatment. In addition, the expression of JHDM1D/JHDM1D-AS1 indicated potential prognostic value in the progression of bladder tumors.

A case-control study of Clostridioides difficile symptomatic infections in a pediatric cancer hospital.

OBJECTIVE: The aim of this study was to analyze and identify documented infections and possible risk factors for Clostridioides difficile infections in children with cancer. METHODS: This is a retrospective case-control study, carried out in a pediatric cancer hospital, covering the years 2016-2019. Matching was performed by age and underlying disease, and for each case, the number of controls varied from 1 to 3. Logistic regression models were used to assess risk factors. RESULTS: We analyzed 63 cases of documented infection by C. difficile and 125 controls. Diarrhea was present in all cases, accompanied by fever higher than 38°C in 52.4% of the patients. Mortality was similar among cases (n=4; 6.3%) and controls (n=6; 4.8%; p=0.7). In all, 71% of patients in the case group and 53% in the control group received broad-spectrum antibiotics prior to the infection. For previous use of vancomycin, the Odds Ratio for C. difficile infection was 5.4 (95% confidence interval [95%CI] 2.3-12.5); for meropenem, 4.41 (95%CI 2.1-9.2); and for cefepime, 2.6 (95%CI 1.3-5.1). For the antineoplastic agents, the Odds Ratio for carboplatin was 2.7 (95%CI 1.2-6.2), melphalan 9.04 (95%CI 1.9-42.3), busulfan 16.7 (95%CI 2.1-134.9), and asparaginase 8.97 (95%CI 1.9-42.9). CONCLUSIONS: C. difficile symptomatic infection in children with cancer was associated with previous hospitalization and the use of common antibiotics in cancer patients, such as vancomycin, meropenem, and cefepime, in the last 3 months. Chemotherapy drugs, such as carboplatin, melphalan, busulfan, and asparaginase, were also risk factors.

Long Non-Coding RNA and Chemoresistance in Bladder Cancer - A Mini Review.

Bladder cancer is the 10th most common cancer worldwide. It is a heterogeneous disease, comprising several tumor subtypes with differences in histology, genomic aberrations, prognosis and sensitivity to anti-cancer treatments. Although the treatment of bladder cancer is based tumor classifications and gradings, patients have different clinical response. In recent years, long non-coding RNAs (lncRNAs) were associated with bladder cancer chemoresistance. Thus, lncRNAs seem to be promising targets in treatment of bladder cancer. This review highlights the recent findings concerning lncRNAs and their relevance to the chemoresistance of bladder cancer. This may provide a basis for exploiting more robust therapeutic approaches in the future.

Synthesis, characterization and antiproliferative effects of naphtho [2,3-b] thiophen-4,9-quinone on bladder tumor cells.

Naphthoquinones are natural plants products or synthesized compounds. They have α, ß-cyclic aromatic dienones structure with a naphthalene skeleton. Little is known about naphthoquinone and nothing about naphtho [2,3-b] thiophen-4,9-quinone effects on bladder cancer. In this study, a naphthoquinone containing a hetero sulfur atom was synthesized using classical synthetic method. The molecular structure was elucidated by NMR techniques and the antitumor effects were evaluated on bladder tumor cell lines with different TP53 status using tripan blue and MTT cytotoxic method, quantification of reactive oxygen species (ROS), wound healing, cell morphology and cell cycle progression assays. The results showed selective cytotoxicity, colonies reduction, morphological change, inhibition of the cell migration process, induction of ROS production and cell cycle arrest. Naphtho [2,3-b] thiophen-4,9-quinone presents antiproliferative activity regardless TP53 status and may be a promising agent in the treatment of bladder cancer, as they have an oxidizing effect and interfere with cell cycle.

Resveratrol induces the production of reactive oxygen species, interferes with the cell cycle, and inhibits the cell migration of bladder tumour cells with different TP53 status.

Resveratrol is a polyphenolic compound whose antitumor activity has been demonstrated in several types of cancer. However, there are few studies on its molecular mechanisms of action in bladder cancer. Therefore, we aimed to evaluate resveratrol activity in bladder tumour cells with different TP53 gene status. Cytotoxicity, cell proliferation, reactive oxygen species (ROS) production, cell migration, mutagenicity, and CDH1, CTNNBIP1, HAT1, HDAC1, MYC, and SMAD4 gene expression were evaluated. An increase in ROS after resveratrol treatment was accompanied by reduced cell viability and proliferation in all cell lines. In TP53 wild-type cells, the inhibition of cell migration was accompanied by CDH1 and SMAD4 modulation. In TP53 mutated cells, cell migration inhibition with CDH1 and CTNNB1P1 upregulation was observed. In conclusion, resveratrol has antiproliferative effect in bladder tumour cells and its mechanism of action occurred through ROS production, interference with cell cycle, and inhibition of cell migration, independent of TP53 status.

Chrysin inhibits the cell viability, induces apoptosis and modulates expression of genes related to epigenetic events in bladder cancer cells.

This study was conducted with the aim of exploring the molecular and cellular mechanisms of action of the chrysin (natural flavonoid compound) on bladder tumour cell lines with different status of TP53 (RT4, 5637 and T24). The cells were treated with different concentrations of chrysin (20, 40, 60, 80 and 100 µM) to analyze the cell viability, nuclear division index, mutagenicity, apoptosis rates and expression of genes related to epigenetic events (DNMT1, HAT1 and HDAC1). Results showed that the treatment with chrysin reduced the cell viability and caused apoptosis, regardless TP53. Moreover, in the TP53-mutated cell lines, chrysin modulated the expression of the DNMT1, HAT1 and HDAC1 epigenetic genes, which might be a plus to the death observed in the cells with p53 mutation.

LncRNA JHDM1D-AS1 is a key biomarker for progression and modulation of gemcitabine sensitivity in bladder cancer cells

Long non-coding RNAs are frequently found to be dysregulated and are linked to carcinogenesis, aggressiveness, and chemoresistance in a variety of tumors. As expression levels of the JHDM1D gene and lncRNA JHDM1D-AS1 are altered in bladder tumors, we sought to use their combined expression to distinguish between low-and high-grade bladder tumors by RTq-PCR. In addition, we evaluated the functional role of JHDM1D-AS1 and its association with the modulation of gemcitabine sensitivity in high-grade bladder-tumor cells. J82 and UM-UC-3 cells were treated with siRNA-JHDM1D-AS1 and/or three concentrations of gemcitabine (0.39, 0.78, and 1.56 µM), and then submitted to cytotoxicity testing (XTT), clonogenic survival, cell cycle progression, cell morphology, and cell migration assays. When JHDM1D and JHDM1D-AS1 expression levels were used in combination, our findings indicated favorable prognostic value. Furthermore, the combined treatment resulted in greater cytotoxicity, a decrease in clone formation, G0/G1 cell cycle arrest, morphological alterations, and a reduction in cell migration capacity in both lineages compared to the treatments alone. Thus, silencing of JHDM1D-AS1 reduced the growth and proliferation of high-grade bladder-tumor cells and increased their sensitivity to gemcitabine treatment. In addition, the expression of JHDM1D/JHDM1D-AS1 indicated potential prognostic value in the progression of bladder tumors.

A case-control study of Clostridioides difficile symptomatic infections in a pediatric cancer hospital / Um estudo caso-controle de infecções sintomáticas por Clostridioides difficile em um hospital oncológico pediátrico

Abstract Objective: The aim of this study was to analyze and identify documented infections and possible risk factors for Clostridioides difficile infections in children with cancer. Methods: This is a retrospective case-control study, carried out in a pediatric cancer hospital, covering the years 2016-2019. Matching was performed by age and underlying disease, and for each case, the number of controls varied from 1 to 3. Logistic regression models were used to assess risk factors. Results: We analyzed 63 cases of documented infection by C. difficile and 125 controls. Diarrhea was present in all cases, accompanied by fever higher than 38°C in 52.4% of the patients. Mortality was similar among cases (n=4; 6.3%) and controls (n=6; 4.8%; p=0.7). In all, 71% of patients in the case group and 53% in the control group received broad-spectrum antibiotics prior to the infection. For previous use of vancomycin, the Odds Ratio for C. difficile infection was 5.4 (95% confidence interval [95%CI] 2.3-12.5); for meropenem, 4.41 (95%CI 2.1-9.2); and for cefepime, 2.6 (95%CI 1.3-5.1). For the antineoplastic agents, the Odds Ratio for carboplatin was 2.7 (95%CI 1.2-6.2), melphalan 9.04 (95%CI 1.9-42.3), busulfan 16.7 (95%CI 2.1-134.9), and asparaginase 8.97 (95%CI 1.9-42.9). Conclusions: C. difficile symptomatic infection in children with cancer was associated with previous hospitalization and the use of common antibiotics in cancer patients, such as vancomycin, meropenem, and cefepime, in the last 3 months. Chemotherapy drugs, such as carboplatin, melphalan, busulfan, and asparaginase, were also risk factors.

RESUMO Objetivo: Analisar e identificar infecções documentadas e possíveis fatores de risco para infecções por Clostridioides difficile em crianças com câncer. Métodos: Estudo retrospectivo caso-controle em um hospital pediátrico oncológico, que abrangeu os anos de 2016-2019. O pareamento foi realizado por idade e doença de base e, para cada caso, o número de controles variou de um a três. Modelos de regressão logística foram utilizados para avaliar os fatores de risco. Resultados: Analisamos 63 casos de infecção documentados por C. difficile e 125 controles. A diarreia esteve presente em todos os casos, acompanhada de febre acima de 38°C em 52,4% dos pacientes. A mortalidade foi semelhante entre casos (n=4, 6,3%) e controles (n=6, 4,8%; p=0,7). No grupo caso, 71% dos pacientes e, no grupo controle, 53% deles receberam antibióticos de amplo espectro antes da infecção. Para uso prévio de vancomicina, a Odds Ratio para infecção por C. difficile foi de 5,4 (intervalo de confiança [IC95%] 2,3-12,5); para meropenem, 4,41 (IC95% 2,1-9,2) e, para cefepima, 2,6 (IC95% 1,3-5,1). Para os agentes antineoplásicos, a razão de chances para carboplatina foi de 2,7 (IC95% 1,2-6,2), para melfalano de 9,04 (IC95% 1,9-42,3), para bussulfano de 16,7 (IC95% 2,1-134,9) e, para asparaginase, de 8,97 (IC95% 1,9-42,9). Conclusões: A infecção sintomática por C. difficile em crianças com câncer associou-se à internação prévia e ao uso de antibióticos como vancomicina, meropenem e cefepime nos últimos três meses. Os quimioterápicos carboplatina, melfalano, bussulfano e asparaginase também foram fatores de risco.

Educational interventions in child development and health literacy assumptions: an integrative review / Intervenciones educativas en el desarrollo infantil y los supuestos de la alfabetización en salud: revisión integrativa / Intervenções educativas em desenvolvimento infantil e os pressupostos do letramento em saúde: revisão integrativa

ABSTRACT Objectives: to analyze scientific evidence in the literature that addresses educational interventions conducted by health professionals on early childhood development in a community context and to identify which health literacy assumptions are present during the implementation of interventions. Method: an integrative review in PubMed, CINAHL and Web of Science databases. Of 300 studies found, we selected 11 for the sample. Results: health professionals are trained to implement interventions with parents/caregivers to promote child development in community settings. Parents are encouraged to develop an environment that is encouraging and conducive to the development of their children. The main dimensions of health literacy found were access and apply. Conclusion: it confirms the importance of training health professionals, with skills and communicative skills to guide parents/caregivers to encourage the development of their children in their family environment with playful and interactive activities.

RESUMEN Objetivos: analizar la evidencia científica en la literatura que aborda intervenciones educativas realizadas por profesionales de la salud sobre el desarrollo infantil temprano en un contexto comunitario e identificar qué supuestos de alfabetización en salud están presentes durante la implementación de las intervenciones. Método: revisión integradora en las bases de datos PubMed, CINAHL y Web of Science. De 300 estudios encontrados, 11 fueron seleccionados para la muestra. Resultados: los profesionales de la salud están capacitados para implementar intervenciones con padres/madres/cuidadores para promover el desarrollo infantil en entornos comunitarios. Se alienta a los padres a desarrollar un entorno estimulante y propicio para el desarrollo de sus hijos. Las principales dimensiones de alfabetización en salud encontradas fueron acceso y aplicación. Conclusión: se confirma la importancia de formar profesionales de la salud, con competencias y habilidades comunicativas para orientar a los padres/madres/cuidadores a incentivar el desarrollo de sus hijos en su entorno familiar con actividades lúdicas e interactivas.

RESUMO Objetivos: analisar na literatura evidências científicas que abordem intervenções educativas conduzidas por profissionais de saúde sobre desenvolvimento infantil na primeira infância em contexto comunitário e identificar quais pressupostos do letramento em saúde estão presentes durante a implementação das intervenções. Método: revisão integrativa nas bases de dados PubMed, CINAHL e Web of Science. De 300 estudos encontrados, 11 foram selecionados para a amostra. Resultados: os profissionais de saúde são capacitados para implementar intervenções com pais/mães/cuidadores, para promoção do desenvolvimento infantil em contextos comunitários. Os pais são orientados a desenvolver um ambiente estimulante e propício para o desenvolvimento dos filhos. As principais dimensões do letramento em saúde encontradas foram acessar e aplicar. Conclusão: ratifica-se a importância da capacitação dos profissionais de saúde, com competências e habilidades comunicativas para orientar pais/mães/cuidadores a estimularem o desenvolvimento dos filhos em seu ambiente familiar com atividades lúdicas e interativas.

Evaluation of sucking using ultrasonography in infants: a scoping review protocol / Avaliação da sucção por meio da ultrassonografia em lactentes: um protocolo de revisão de escopo

ABSTRACT Purpose: to identify studies related to ultrasound assessment of suction in infants. Methods: this research aims to investigate how the literature describes the use of ultrasound to assess suction in infants. It used the "Participants, Concept, and Context" strategy to define inclusion criteria, as follows: population, infants 1 to 180 days old; concept, assessment of suction; and context, ultrasound assessment. The search strategy will be used in the databases of MEDLINE (via PubMed), EMBASE, Web of Science, and Scopus, and studies will be selected based on the inclusion and exclusion criteria established, independently, by two trained professionals. The article analysis protocol will consider the study year and design, the number of infants assessed, their ages, the suction assessment method, the ultrasound suction image acquisition method, and the ultrasound suction analysis method. Data will be presented in charts, narratives, and tables. Final Considerations: ultrasound has been described in the literature as an assessment instrument that enables the analysis of tongue movements during suction. This scoping review will describe ultrasound acquisition methods to assess suction.

RESUMO Objetivo: identificar estudos relacionados à avaliação ultrassonográfica da função de sucção em lactentes. Métodos: esta pesquisa procura investigar como a literatura descreve o uso da ultrassonografia na avaliação da sucção dos lactentes. A estratégia Participantes, Conceito e Contexto foi utilizada para definir os critérios de inclusão, sendo a população avaliada de lactentes de um a 180 dias de vida; com o conceito investigado de avaliação da função de sucção; e o contexto investigado de avaliação ultrassonográfica. A estratégia de busca será realizada nas bases de dados eletrônicas MEDLINE (via PubMed), EMBASE, Web of Science e Scopus e os estudos serão selecionados com base nos critérios de inclusão e exclusão estabelecidos por dois profissionais treinados, independentemente. O protocolo de análise dos artigos irá considerar ano do estudo, delineamento do estudo, número de bebês avaliados, idade, metodologia para avaliação da sucção, metodologia de aquisição de imagens ultrassonográficas da sucção e metodologia de análise ultrassonográfica da sucção. Os dados serão apresentados por meio de diagramas, narrativas e tabelas. Considerações Finais: a ultrassonografia vem sendo descrita na literatura como um instrumento de avaliação que permite a análise dos movimentos da língua durante a sucção. Esta revisão de escopo irá permitir a descrição dos métodos de aquisição da ultrassonografia na avaliação da sucção.

Educational interventions in child development and health literacy assumptions: an integrative review.

OBJECTIVES: to analyze scientific evidence in the literature that addresses educational interventions conducted by health professionals on early childhood development in a community context and to identify which health literacy assumptions are present during the implementation of interventions. METHOD: an integrative review in PubMed, CINAHL and Web of Science databases. Of 300 studies found, we selected 11 for the sample. RESULTS: health professionals are trained to implement interventions with parents/caregivers to promote child development in community settings. Parents are encouraged to develop an environment that is encouraging and conducive to the development of their children. The main dimensions of health literacy found were access and apply. CONCLUSION: it confirms the importance of training health professionals, with skills and communicative skills to guide parents/caregivers to encourage the development of their children in their family environment with playful and interactive activities.

Nosso sistema imune de cada dia e os agrotóxicos de hoje / Our everyday immune system and today's pesticides

O uso massivo dos agrotóxicos nas lavouras deu-se a partir de 1950 com a "Revolução Verde", como resultado da busca por aumento da produtividade e modernização dos campos agrícolas. Diante disso, na década de 1960, foi criado o Programa Nacional de Defensivos Agrícolas (PNDA), que veio para facilitar a introdução dos agroquímicos, colaborando para que, a partir de 2008, o Brasil passasse a ser o país com maiores percentuais de uso destes produtos. Essas substâncias geram efeitos deletérios sobre a resposta imune dos indivíduos expostos, principalmente relacionada aos macrófagos, células B, T e NK. Isso afeta a capacidade de fagocitose, apresentação de antígenos e produção de anticorpos, além de induzir a geração de radicais livres de oxigênio e disfunção mitocondrial, resultando em estresse oxidativo e danos ao DNA celular, apoptose em excesso, mutação no ciclo celular, desordem de regulação e, consequentemente, imunodeficiência. Dessa forma, o desenvolvimento de doenças imunomediadas, como asma e doença pulmonar obstrutiva crônica (DPOC), está estreitamente ligado aos agrotóxicos, uma vez que esses variados mecanismos de toxicidade ao sistema imune induzem, dentre outras, manifestações respiratórias, tais como tosse, sibilo, irritação e inflamação. Além disso, estes pesticidas estão relacionados com doenças não imunomediadas ao alterar a função normal dos hormônios da tireoide, andrógenos e estrógenos. A fim de avaliar estes impactos, o presente estudo consiste em uma revisão integrativa da literatura e, diante da crescente utilização descontrolada dos agrotóxicos, assume grande relevância, refletindo a necessidade de maior atuação da vigilância epidemiológica, ambiental e da saúde do trabalhador.

Beginning in the 1950s, massive pesticide use began in what is called the "Green Revolution", a quest for increased agricultural productivity and modernization. In the 1960s, the Brazilian National Program of Agricultural Defense was created to facilitate the introduction of agrochemicals, leading the country to become one of the world's largest pesticide users by 2008. These substances have deleterious effects on the immune response of exposed individuals, mainly related to macrophages and B, T, and NK cells. This affects phagocytosis and antigen and antibody production, inducing production of oxygen free radicals and mitochondrial dysfunction, which results in oxidative stress and cellular DNA damage, excess apoptosis, cell cycle mutations, regulatory disorders, and, consequently, immunodeficiency. Thus, the development of immune-mediated diseases, such as asthma and chronic obstructive pulmonary disease (COPD), is closely linked to pesticides, since these varied mechanisms of toxicity to the immune system induce respiratory manifestations, such as cough, wheezing, irritation and inflammation. Pesticide use is also related to non-immune-mediated diseases because exposure alters the normal function of thyroid hormones, androgens, and estrogens. To evaluate their impact, the present study performed an integrative review of the literature, which, due to the growing and uncontrolled use of pesticides, is of great relevance and demonstrates the need for greater epidemiological, environmental, and worker health surveillance.