Aleitamento materno e consumo de ultraprocessados pela ótica da desigualdade racial: um delineamento ecológico / Breastfeeding and consumption of ultra-processed foods from the perspective of racial inequality: an ecological outline / Lactancia materna y consumo de alimentos ultraprocesados desde la perspectiva de la desigualdad racial: un panorama ecológico

Este artigo objetivou avaliar as informações acerca do consumo alimentar e aleitamento materno de crianças do município de Alfenas (MG) e, ainda, verificar fatores relacionados, como cor da pele e faixa etária. Trata-se de um estudo epidemiológico ecológico longitudinal, com coleta de dados pelo Sistema de Vigilância Alimentar e Nutricional Web e análise por meio de proporções e contagens medianas mensais. Admitiu-se um nível de confiança de 95% (p<0,05) para as análises realizadas com apoio do pacote computacional estatístico R. Foram totalizados 2.377 registros para os marcadores de consumo alimentar, apresentando 25% (IC95%: 16,67-36,06) de ausência de aleitamento materno exclusivo e 50% (IC95%: 50,00-66,67) para o consumo de alimentos ultraprocessados. Ainda, os marcadores estavam associados à cor da pele, sendo não branca a com maior risco à saúde, na proporção de 63,9% para a ausência de aleitamento materno exclusivo e de 77,5% para o maior consumo de alimentos ultraprocessados. Os resultados, referentes ao consumo de ultraprocessados e à ausência de aleitamento materno exclusivo para o município de Alfenas (MG), são positivamente superiores às médias nacionais, enfatizando o comportamento alimentar inadequado em relação à questão racial.

This article aimed to evaluate information about the food consumption and breastfeeding of children in the municipality of Alfenas, Minas Gerais, and to verify related factors such as ethnicity and age group. Longitudinal ecological epidemiological study, with data collected by the Web Food and Nutrition Surveillance System (SISVAN Web) and analyzed using proportions and monthly median counts. A confidence level of 95% (p<0.05) was accepted for the analyses carried out with the support of the statistical computational package R. There were 2,377 records for the food consumption markers, with 25% (95%CI: 16.67­36.06) absence of exclusive breastfeeding and 50% (95%CI: 50.00­66.67) consumption of ultra-processed foods. Furthermore, the markers were associated with ethnicity, with non-white ethnicity having the highest health risk, in the proportion of 63.9% for the absence of exclusive breastfeeding and 77.5% for the highest consumption of ultra-processed foods. The results regarding the consumption of ultra-processed foods and the absence of exclusive breastfeeding for the municipality of Alfenas, Minas Gerais, are positively higher than the national averages, emphasizing the inadequate eating behavior in relation to the racial issue.

Este artículo tiene por objetivo evaluar información sobre el consumo de alimentos y la lactancia materna de niños en la ciudad de Alfenas, Minas Gerais (Brasil), así como identificar los factores relacionados, como el color de la piel y el grupo de edad. Se trata de un estudio epidemiológico ecológico longitudinal, con recolección de datos en el Sistema de Vigilancia Alimentaria y Nutricional Web y análisis mediante proporciones y conteos medianos mensuales. Se utilizó un nivel de confianza del 95% en los análisis (p<0,05) realizados con apoyo del paquete computacional estadístico R. Hubo un total de 2.377 registros en los marcadores de consumo de alimentos, con un 25% (IC95%: 16,67-36,06) para ausencia de lactancia materna exclusiva y el 50% (IC95%: 50,00-66,67) para el consumo de alimentos ultraprocesados. Además, los marcadores estuvieron asociados con el color de la piel, en el cual el color de piel no blanco presentó un mayor riesgo para la salud, en la proporción del 63,9% para ausencia de lactancia materna exclusiva y del 77,5% para el mayor consumo de alimentos ultraprocesados. Los resultados sobre el consumo de alimentos ultraprocesados y la ausencia de lactancia materna exclusiva en el municipio de Alfenas son positivamente superiores a los promedios nacionales, destacando la conducta alimentaria inadecuada por cuestiones raciales.

High and fluctuating levels of ovarian hormones induce an anxiogenic effect, which can be modulated under stress conditions: Evidence from an assisted reproductive rodent model.

Elevated levels of endogenous ovarian hormones are conditions commonly experienced by women undergoing assisted reproductive technologies (ART). Additionally, infertility-associated stress and treatment routines are factors that together may have a highly negative impact on female emotionality, which can be aggravated when several cycles of ART are needed to attempt pregnancy. This study aimed to investigate the effect of high and fluctuating levels of gonadal hormones induced by repeated ovarian stimulation on the stress response in rodents. To mimic the context of ART, female rats were exposed to an unpredictable chronic mild stress (UCMS) paradigm for four weeks. During this time, three cycles of ovarian stimulation (superovulation) (150 IU/Kg of PMSG and 75 IU/Kg of hCG) were applied, with intervals of two estrous cycles between them. The rats were distributed into four groups: Repeated Superovulation/UCMS; Repeated Superovulation/No Stress; Saline/UCMS; and Saline/No Stress. Anxiety-like and depressive-like behaviors were evaluated in a light-dark transition box and by splash test, respectively. Corticosterone, estradiol, progesterone, and biometric parameters were assessed. Data were analyzed using a two-way Generalized Linear Model (GzLM). Our results showed that repeated ovarian stimulation exerts by itself an expressive anxiogenic effect. Surprisingly, when high and fluctuating levels of ovarian hormones were combined with chronic stress, anxiety-like behavior was no longer observed, and a depressive-like state was not detected. Our findings suggest that females subjected to emotional overload induced by repeated ovarian stimulation and chronic stress seem to trigger the elaboration of adaptive coping strategies.

Produção científica sobre fluorose em regiões endêmicas: estudo bibliométrico de Anais das Reuniões da Sociedade Brasileira de Pesquisa Odontológica / Scientific production on fluorosis in endemic regions: bibliometric study of Meeting Annals of the Brazilian Society of Dental Research

Objetivo: Identificar os resumos publicados nas Reuniões Anuais da Sociedade Brasileira de Pesquisa Odontológica sobre fluorose em regiões endêmicas e verificar a contribuição da Ciência Brasileira para o assunto. Métodos: Este estudo descritivo foi realizado com dados secundários do período entre 2005 e 2020; os estudos elegíveis foram identificados a partir dos descritores presentes no título e/ou resumo: flúor, fluorose, fluorose dental, fluorose dentária, fluoretação, intoxicação por flúor. Critérios de inclusão: estudos em regiões declaradas como de fluorose endêmica ou que citassem o teor de flúor acima de 0,8 mg F/L. Foram excluídos estudos que não declarassem estudar fluorose em regiões endêmicas ou não citassem o teor de flúor na água. Os dados foram coletados por dois examinadores de modo independente e a distribuição de frequências dos dados foi realizada (Microsoft Excel para Mac v.16.16.12). Resultados: Observou-se que de 41.953 resumos publicados durante esses 15 anos, 1190 (2,83%) foram elegíveis; 426 (1,01%) abordaram especificamente o tema fluorose e24 (0,06%) a fluorose em regiões endêmicas. Os assuntos abordados envolveram tratamento (n = 4; 14,81%); desenvolvimento de programas de promoção de saúde bucal (n = 2; 7,69%);avaliação da potabilidade da água (n = 2; 7,41%); implementação de sistemas de desfluoretação (n = 2; 7,41%); prevalência e severidade (n = 2; 7,41%); distribuição da fluorose na dentição (n = 1, 3,70%); impacto na qualidade de vida (n = 2; 7,41%); percepçãoestética(n = 5; 18,52%); uso e ingestão de flúor (n = 3; 11,11%); fluorose óssea (n = 2; 7,41%); análise da possibilidade de alteração no padrão cognitivo (n = 1; 3,70%), nas funções motoras e no equilíbrio (n=1; 3,70%).Conclusão: Diferentes aspectos relacionados à fluorose em região endêmica foram abordados. A Ciência Brasileira tem se dedicado ao tema ao longo dos anos. Entretanto, há um número restrito de estudos, em especial sobre a relação dose-reposta.

Aim: Identify the abstracts published at the Brazilian Society for Dental Research's Annual Meetings regarding Fluorosis in endemic regions, as well as verify the contribution of Brazilian science to the subject. Methods:This descriptive study was conducted using secondary data from the period between 2005 and 2020; the eligible studies were identified from the descriptors present in the title and/or abstract, as follows: fluoride, fluorosis, dental fluorosis, dental fluorosis, fluoridation, fluoride poisoning. Inclusion criteria: studies in regions with endemic fluorosis were included. Studies that did not address fluorosis in endemic regions were excluded. Data were collected by two independent examiners and the distribution frequency of the data was performed (Microsoft Excel for Mac v.16.16.12). Results: It was observed that of the 41,953 abstracts published during these 15 years, 1,190 (2.83%) were eligible; 426 (1.01%) specifically addressed the theme of fluorosis, and of these, 24 (0.06%) reported on fluorosis in endemic regions. The subjects addressed involved treatment (n = 4; 14.41%), the development of oral health promotion programs (n = 2; 7.41%), the evaluation of water potability (n = 2; 7.41%), the implementation of defluoridation systems (n = 2; 7.41%), prevalence and severity (n = 2; 7.41%), the distribution of fluorosis in dentition (n = 1, 3.70%), impacts on the quality of life (n = 2; 7.41%), esthetic perceptions (n = 4; 18.52%), fluoride use and ingestion (n = 3; 11.11%), bone fluorosis (n = 2; 7.41%), the analysis of alterations in the cognitive pattern (n = 1; 3.70%) and change in motor functions and balance (n=1; 3,70%).Conclusion: Different aspects related to fluorosis in an endemic region were addressed. Brazilian Science has been devoted to the theme over the years; however, there have been a limited number of studies published in the literature concerning the dose-response ratio.

Comparison of the prognostic value of myocardial perfusion imaging using a CZT-SPECT camera with a conventional anger camera.

BACKGROUND: Recent studies have shown that myocardial perfusion imaging (MPI) in cadmium-zinc-telluride (CZT) cameras allow faster exams with less radiation dose but there are little data comparing its prognosis information with that of dedicated cardiac Na-I SPECT cameras OBJECTIVE: The objective of this study is to compare the prognostic value of MPI using an ultrafast protocol with low radiation dose in a CZT-SPECT and a traditional one. METHODS: Group 1 was submitted to a two-day MIBI protocol in a conventional camera, and group 2 was submitted to a 1-day MIBI protocol in CZT camera. MPI were classified as normal or abnormal, and perfusion scores were calculated. Propensity score matching methods were performed RESULTS: 3554 patients were followed during 33±8 months. Groups 1 and 2 had similar distribution of age, gender, body mass index, risk factors, previous revascularization, and use of pharmacological stress. Group 1 had more abnormal scans, higher scores than group 2. Annualized hard events rate was higher in group 1 with normal scans but frequency of revascularization was similar to normal group 2. Patients with abnormal scans had similar event rates in both groups CONCLUSION: New protocol of MPI in CZT-SPECT showed similar prognostic results to those obtained in dedicated cardiac Na-I SPECT camera, with lower prevalence of hard events in patients with normal scan.