Pesticides in fish from the Uruguay River and markets in Argentina and health risk assessment.

Organochlorine, organophosphate, triazole, and strobilurin pesticides were determined in fish samples. Relative standard deviations lower than 9.3% were obtained for organochlorine pesticides and 10.8% for other pesticides. Accuracy ranged from 73% to 119% for organochlorine pesticides and 80.4% to 116% for organophosphate, triazole, and strobilurin pesticides. A total of 28 pesticides were analysed and 7 of them were detected (exceeding 10 µg/kg) in some samples, with the highest concentration recorded at 68.5 µg/kg, corresponding to heptachlor epoxide A. The pesticide most frequently detected was ß HCH, found in 30 of the 100 analysed samples. Hazard Quotient values were estimated for men, women, and children. These values exceeded 1 for heptachlor epoxide in women and children, as well as for endrin in children. These findings emphasise the need for stricter controls to reduce fish contamination and mitigate health risks.

Health risk assessment by consumption of commercial biota contaminated with heavy metals in Tampamachoco coastal lagoon, Gulf of Mexico.

Metal pollution is a significant environmental and health problem in aquatic ecosystems worldwide, particularly in coastal systems impacted by emissions from thermoelectric plants, as is the case of the Tampamachoco lagoon. To evaluate the seasonal contamination levels of Cd, Pb, Cr, and Cu in species of commercial interest in the Tampamachoco lagoon and estimate the health risk associated with their consumption, a total of 180 fish, 90 oysters (Crassostrea virginica), 27 crabs (Callinectes sapidus), and 24 shrimp (Litopenaeus setiferus) were sampled. Metal concentrations in the species analyzed were Cu > Pb > Cr > Cd. According to the Target Hazard Quotient and the health risk index, consumption of the marine species examined should be considered safe for human health, as both values are <1. However, Carcinogenic risk values for Pb and Cr indicated that consumers may be at risk of cancer (10-3), due to exposure from the thermoelectric emissions.

Changes in groundwater and surface water bacterial communities under disinfection processes: Chlorination, ozonization, photo-fenton and ultraviolet radiation.

Pathogenic bacteria, introduced in water sources through faecal contamination, have traditionally been investigated as individual species, leading to the establishment of microbial, sanitary, and environmental quality indicators. Recent advancements in our understanding of the microbiome and its intricate interactions within the human-microbiome-environment network advocate for a broader evaluation of the impact of disinfection on the entire microbial community. In this study, we conducted a comprehensive screening experiment involving four disinfection processes; ozone, ultraviolet radiation with wavelengths between 200 - 280 nm (UV-C), photo-Fenton, and chlorination, applied to two distinct water sources; surface (SW) and groundwater (GW). The cells that remained viable after treatment were recovered using Brain Heart Infusion (BHI) broth, and 16S rRNA gene sequencing was used for their identification. Our findings confirmed the presence of faecal contamination in the water sources and revealed distinct effects of each treatment on the recovered bacterial populations. The chlorination of groundwater samples likely had a greater impact on bacteria in a vegetative state than on spores. Consequently, this led to a higher abundance in the BHI cultures of sporulating bacteria such as Bacillus (increasing from 0.36 to 93.62 %), while ozonation led to an elevated recovery of Pseudomonas (increasing from 45.2 to 69.9 %). Conversely, in surface water, calcium hypochlorite and ozone treatments favored the selection of Staphylococcus and Bacillus, whose relative abundance in the cultures increased from 0 to 39.22 % and from 0.35 to 96.6 %, respectively. In groundwater, Pseudomonas was resistant to UV-C radiation and their relative abundance increased from 45.2 % to 93.56 %, while photo-Fenton was effective against this bacterial group decreasing its relative abundance to 0.46 %. However, other genera such as Bacteroides, Aeromonas, and Citrobacter seemed to be less injured by this disinfection process. BHI broth was successful in recovering various bacterial groups that exhibited resistance to sublethal water disinfection.

Insegurança alimentar e nutricional e os comportamentos de risco e proteção para saúde em adolescentes durante a pandemia de covid-19 / Food and nutritional insecurity and health risk behaviors in adolescents during the COVID-19 pandemic

RESUMO A pandemia de covid-19 reduziu o acesso aos alimentos e aumentou a insegurança alimentar. Objetivouse analisar a prevalência de Insegurança Alimentar e Nutricional (IAN) em adolescentes brasileiros durante a pandemia de covid-19 segundo características sociodemográficas e examinar a associação entre IAN e comportamentos de risco e proteção em adolescentes brasileiros durante esse período. Estudo transversal com dados da 'ConVid Adolescentes - Pesquisa de Comportamentos', realizada entre junho e outubro de 2020, utilizando-se um questionário autoaplicado por meio de celular ou computador. A população foi adolescentes de 12 a 17 anos, totalizando 9.470. Utilizou-se a Razão de Prevalência (RP) e Intervalo de Confiança de 95% (IC95%), por meio da regressão de Poisson com variância robusta. A prevalência de IAN (26,1%) foi mais elevada entre os adolescentes da raça/cor preta e parda e que estudam em escola pública. Os adolescentes que relataram IAN tiveram menor consumo de hortaliças e frutas, menor prática de atividade física e maior uso de cigarros e álcool. A IAN foi mais prevalente em adolescentes com piores condições socioeconômicas, e, adolescentes com IAN apresentaram maior frequência de comportamentos de risco para a saúde evidenciando a importância de políticas públicas intersetoriais para a redução de desigualdades.

ABSTRACT The COVID-19 pandemic has reduced access to food and increased food insecurity. The objectives were to analyse the prevalence of Food and Nutritional Insecurity (FNI) in Brazilian adolescents during the COVID-19 pandemic according to sociodemographic characteristics and to examine the association between FNI and risk and protective behaviours in Brazilian adolescents during the that period. Cross-sectional study with data from the 'ConVid teenagers - Behaviour Survey,' carried out between June and October 2020, using a self-administered questionnaire via mobile phone or computer. The population was made up of teenagers aged 12 to 17, totalling 9,470. The Prevalence Ratio (PR) and 95% Confidence Interval (95% CI) were used, using Poisson regression with robust variance. The prevalence of FNI (26.1%) was higher among adolescents of black and mixed race/colour and who study in public schools. Adolescents who reported FNI had lower consumption of vegetables and fruits, less physical activity, and greater use of cigarettes and alcohol. FNI was more prevalent in adolescents with worse socioeconomic conditions, and adolescents with FNI showed a higher frequency of health risk behaviours, highlighting the importance of intersectoral public policies to reduce inequalities.

Sexual risk behavior and knowledge about sexually transmitted infections in a university population in Sorocaba, Brazil / Comportamento sexual de risco e conhecimento sobre infecções sexualmente transmissíveis em uma população universitária na cidade de Sorocaba/SP

INTRODUCTION: Sexually transmitted infections (STIs) are a major public health problem to which young people are highly exposed and knowledge about vulnerabilities that affect them is needed. OBJECTIVE: To evaluate the knowledge about STIs and sexual behavior of a university population in the city of Sorocaba/SP. METHODS: A descriptive, cross-sectional study was conducted with data collection realized by an online application with qualitative and quantitative characteristics. RESULTS: Four hundred and seventy-seven (477) university students from different areas of knowledge were analyzed. The majority pointed to the beginning of sexual life between 15 and 18 years old. Information about sex education was obtained mainly through parents and/ or guardians, while little additional knowledge was obtained after entering higher education. Biological and Health Sciences students achieved a higher score on the knowledge questionnaire and were less likely (0.391) to contract STIs when compared to Applied Social Sciences or Engineering students (2.8 and 2.9 more likely, respectively). CONCLUSION: Students who demonstrated greater knowledge about STIs and acquired more information on the subject during graduation were less likely to become infected, suggesting that campaigns aimed at the university public are essential for the prevention and control of these pathogens.

INTRODUÇÃO: As infecções sexualmente transmissíveis (IST) são um grande problema de saúde pública, ao qual os jovens apresentam alta exposição, sendo necessário um maior conhecimento sobre as vulnerabilidades que os acometem. OBJETIVO: Avaliar o conhecimento sobre as IST e o comportamento sexual de uma população universitária na cidade de Sorocaba/SP. MÉTODOS: Realizou-se um estudo descritivo, de corte transversal, com a coleta de dados realizada por meio de aplicação online de questionário com características qualitativas e quantitativas. RESULTADOS: Quatrocentos e setenta e sete (477) universitários de diferentes áreas de conhecimento foram avaliados. A maioria dos relatos apontou para o início da vida sexual entre 15 e 18 anos. As informações sobre educação sexual foram obtidas principalmente por intermédio dos pais e/ou responsáveis, enquanto pouco conhecimento adicional foi obtido após o ingresso no Ensino Superior. Estudantes de Ciências Biológicas e da Saúde alcançaram o maior score no questionário sobre conhecimento e apresentaram chances menores (0,391) de contrair IST, quando comparados aos estudantes de Ciências Sociais Aplicadas ou Engenharias (2,8 e 2,9 mais chances, respectivamente). CONCLUSÃO: Os estudantes que demonstraram maior conhecimento sobre as IST e que adquiriram mais informações sobre o tema durante a graduação apresentaram chances menores de se infectar, o que sugere que campanhas destinadas ao público universitário são essenciais para a prevenção e o controle desses patógenos.

Assessment of Human Health Risk Indices Due to Metal Contamination in the Surface Water of the Negro River Sub-Basin, Áncash.

The accelerated loss of glacial cover in the Cordillera Blanca in Áncash, Peru, exposes the underlying rocks with high concentrations of sulfides from the Chicama Formation to oxidation and leaching processes, generating acid rock drainage (ARD) in glacial and periglacial areas. These are transported by surface runoff, contaminating the surface water with high concentrations of metals and sulfates, as well as increasing the acidity, which poses a risk to human health and the ecosystem. Therefore, the risk indices for human health due to metal contamination were evaluated at 19 surface water sampling points distributed in the Río Negro sub-basin. Hydrochemical analyses revealed average metal concentrations in the following order: Fe (28.597 mg/L), Al (3.832 mg/L), Mn (1.085 mg/L), Zn (0.234 mg/L), Ni (0.085 mg/L), Co (0.053 mg/L), Li (0.036 mg/L), Cu (0.005 mg/L), and Pb (0.002 mg/L). The risk was determined by calculating the Heavy Metal Pollution Index (HPI) and the Hazard Index (HI). The average HPI value was 360.959, indicating a high level of contamination (HPI ≥ 150). The human health risk assessment indicated that adverse effects caused by iron, lithium, and cobalt in children and adults should be considered. Through the use of Pearson correlation analysis, principal component analysis, and cluster analysis, it was identified that SO42-, Fe, S, Al, Co, Mn, Ni, Zn, and Li originate from natural sources, associated with the generation of ARD in glacial and periglacial areas.

Co-occurrence of obesogenic behaviors and their implications for mental health during the COVID-19 pandemic: a study with university students.

BACKGROUND: The university years are a critical period for young adults, as they are more exposed to obesogenic behaviors and experience stressful situations that compromise their mental health. This study aims to estimate the prevalence of anxiety and depression symptoms and evaluate the association between the combined occurrence of obesogenic behaviors among university students. METHODS: A cross-sectional study was conducted on students from a public university in Brazil during the COVID-19 pandemic. Data were collected from July to August 2020 using an online questionnaire. The outcome variables (anxiety and depression symptoms) were assessed using the Depression, Anxiety and Stress Scale-21 (DASS-21). The co-occurrence of obesogenic behaviors was measured based on irregular consumption of fruits and vegetables, frequent consumption of ultra-processed foods, physical inactivity during leisure time, and sedentary behavior. A Venn diagram was used for the exploratory analysis. To verify the association between the outcome and explanatory variables, a directed acyclic graph model was constructed, and multivariate logistic regression was performed to calculate odds ratios (ORs) and 95% confidence intervals (95%CIs). RESULTS: A total of 1,353 students aged 18-24 years participated in this study. Symptoms of anxiety and depression were present in 46.1% and 54.6% of the participants, respectively. The most prevalent combination of obesogenic behaviors was frequent consumption of ultra-processed foods, physical inactivity during leisure time, and sedentary behavior (17.2%). The greater the number of simultaneous obesogenic behaviors, the higher the chance to present symptoms of anxiety [OR: 2.81 (95%CI: 1.77-4.46)] and depression [OR: 3.46 (95%CI: 2.20-5.43)]. CONCLUSION: These findings reinforce the need to take actions to promote mental health in the university environment in conjunction with programs to promote a healthy lifestyle and improve the physical and mental well-being of students.

Arsenic and fluoride in groundwater triggering a high risk: Probabilistic results using Monte Carlo simulation and species sensitivity distribution.

The widespread presence of arsenic (As) and fluoride (F-) in groundwater poses substantial risks to human health on a global scale. These elements have been identified as the most prevalent geogenic contaminants in groundwater in northern Mexico. Consequently, this study aimed to evaluate the human health and ecological risks associated with the content of As and F- in the Meoqui-Delicias aquifer, which is in one of Mexico's most emblematic irrigation districts. Concentrations of As and F- were measured in 38 groundwater samples using ICP-MS and ion chromatography, respectively. Overall, these elements showed a similar trend across the aquifer, revealing a positive correlation between them and pH. The concentration of As and F- in the groundwater ranged from 5.3 µg/L to 303 µg/L and from 0.5 mg/L to 8.8 mg/L, respectively. Additionally, the levels of As and F- surpassed the established national standards for safe drinking water in 92% and 97% of samples, respectively. Given that groundwater is used for both agricultural purposes and human activities, this study also assessed the associated human health and ecological risks posed by these elements using Monte Carlo simulation and Species Sensitivity Distribution. The findings disclosed a significant noncarcinogenic health risk associated with exposure to As and F-, as well as an unacceptable carcinogenic health risk to As through water consumption for both adults and children. Furthermore, a high ecological risk to aquatic species was identified for F- and high to medium risks for As in the sampling sites. Therefore, the findings in this study provide valuable information for Mexican authorities and international organizations (e.g., WHO) about the adverse effects that any exposure without treatment to groundwater from this region represents for human health.

El humo del electrocauterio, el riesgo olvidado y minimizado de la cirugía / Smoke from electrocautery, the forgotten and minimized risk of surgery

Introducción. La nueva era de la cirugía es cada vez más dependiente de la tecnología, y un ejemplo de ello es el uso generalizado de electrocauterio como parte primordial de la práctica quirúrgica. El humo quirúrgico es un subproducto de la disección y la coagulación de los tejidos producidas por los equipos de energía, que representa múltiples riesgos potenciales para la salud del grupo quirúrgico, sin embargo, se han minimizado los peligros causados por la exposición de manera frecuente y acumulativa a este aerosol. Métodos. Se realizó un análisis crítico, desde una posición reflexiva de la información disponible, estableciendo los posibles riesgos relacionados con la exposición al humo quirúrgico. Discusión. Es visible la necesidad imperativa de establecer directrices nacionales, pautas normativas y recomendaciones estandarizadas para cumplir con las exigencias dadas por los sistemas de gestión en salud ocupacional y seguridad del trabajo, cuyo objetivo principal es hacer efectivo el uso de mascarillas quirúrgicas apropiadas, la implementación de programa de vigilancia epidemiológica ambiental en sala de cirugía, la priorización del uso constante de aspiradores y sistemas de evacuación, y la ejecución de programas educativos de sensibilización dirigidos al personal implicado. De igual manera, se abre la inquietud de la necesidad de nuevos estudios para definir con mayor precisión el peligro de este aerosol. Conclusión. Se recomienda de manera responsable utilizar todas las estrategias preventivas existentes para intervenir en salas de cirugía los riesgos minimizados y olvidados del humo quirúrgico.

Introduction. The new era of surgery is increasingly dependent on technology, and an example of this is the widespread use of electrocautery as a primary part of surgical practice. Surgical smoke is a byproduct of the dissection and coagulation of tissues produced by energy equipment, which represents multiple potential health risks for the surgical group; however, the dangers caused by cumulative exposure have been minimized. Methods. A critical analysis was carried out from a reflective position of the available information, establishing the possible risks related to exposure to surgical smoke. Discussion. The imperative need to establish national normative guidelines and standardized recommendations to comply with the demands given by the occupational health and work safety management systems, whose main objective is to make effective the use of appropriate surgical masks, implementation of environmental epidemiological surveillance program in the operating room, prioritizing the constant use of vacuum cleaners and evacuation systems, and carrying out educational awareness programs aimed at the personnel involved. Likewise, there is concern about the need for new studies to more precisely define the danger of this aerosol. Conclusion. It is recommended to responsibly use all existing preventive strategies to intervene in operating rooms to minimize the forgotten risks of surgical smoke.

Occurrence of parasites in waters used for crops irrigation and vegetables from the Savannah of Bogotá, Colombia.

The World Health Organization (WHO) has established as a criterion of parasitological quality for irrigation water, ≤ 1 helminth egg/liter, which guarantees the safety in agricultural products. In this study, the presence of parasites in surface water used for irrigation of crops (n = 96) and vegetables (celery and lettuce) (n = 120), from the Former La Ramada irrigation district, was evaluated using conventional and molecular parasitological methods. Our findings showed contamination of irrigation systems in the study area with domestic wastewater, demonstrated by the presence of Ancylostomatidae eggs, Ascaris spp., Hymenolepis spp., Trichuris spp., Capillaria spp., Giardia spp. cysts, and oocysts of Toxoplasma gondii and Cryptosporidium spp. A prevalence of 33% and 23.3% was calculated for helminths and protozoa, respectively in vegetables, representing a possible risk to human and animal health in relation to these parasites. These findings show the need for continuous monitoring of the water quality used for crop irrigation, as well as the safety of food, taking into account the values established in national and international regulations.

Food consumption and remote working conditions among Brazilian Primary Schools teachers during the COVID-19 pandemic / Consumo de alimentos y condiciones de trabajo remoto en maestros brasileños de básica durante la pandemia de COVID-19

Introduction: Teaching work, which is characterized by being exhausting, with a significant workload, with synchronous and/or asynchronous remote classes. Objective: To describe associations between the working conditions of school teachers at home and their food consumption during the suspension of face-to-face classes. Materials and methods: Cross-sectional study using a self-administered online questionnaire with 15,372 working teachers from Minas Gerais, Brazil. The dependent variables analyzed were the consumption of healthy and unhealthy foods. Independent variables included sociodemographic factors, remote work conditions, understanding of online technologies, computer access, and quality of Internet connection. The Poisson model with robust variance was used to determine the association between working conditions and food consumption. Results: In the analysis of the adjusted multivariate model, there was a significant association between eating habits and the following variables: gender, age, working hours (per week), feelings regarding teachers' work during the pandemic, working hours during the pandemic and quality work internet connection. Our data shows that teachers' remote working conditions are associated with worse food consumption. They also showed that working hours equal to or greater than 40 hours per week, feelings of dissatisfaction with working conditions during the pandemic, increased working hours during the pandemic and poor quality of internet connection were variables correlated with the consumption of unhealthy foods. Conclusions: Remote working conditions during the pandemic influenced primary school teachers' food choices. More studies are needed to delve deeper into issues related to teachers' working conditions and the implications for food choices(AU)

Introducción: La labor docente se caracteriza por ser agotadora, con una importante carga horaria, con clases remotas síncronas y/o asíncronas. Objetivo: Describir la asociación existente entre las condiciones del trabajo remoto de los docentes de la educación básica y el consumo de sus alimentos durante el período de suspensión de las clases presenciales. Métodos: Es un estudio transversal mediante cuestionario en línea autoadministrado con 15.372 docentes activos en Minas Gerais, Brasil. Las variables dependientes analizadas fueron el consumo de los alimentos saludables y de los no saludables. Las variables independientes incluyeron los factores sociodemográficos, las condiciones del trabajo remoto, la comprensión de las tecnologías en línea, el acceso a las computadoras así como la calidad de la conexión a la Internet. Se utilizó el modelo de Poisson con variación robusta para determinar la asociación entre las condiciones del trabajo y el consumo de los alimentos. Resultados: En el análisis del modelo multivariado ajustado hubo una asociación significativa entre los hábitos alimentarios y las siguientes variables: el género, la edad, la jornada laboral semanal, el sentimiento sobre el trabajo durante la pandemia, la jornada laboral durante la pandemia y la calidad de la conexión a la internet. Nuestros datos demuestran que las condiciones del trabajo remoto de los docentes están asociadas con un empeoramiento en el consumo de los alimentos. También mostraron que la jornada laboral igual o superior a unas 40 horas semanales, los sentimientos de insatisfacción con las condiciones laborales, el aumento de la jornada laboral y la mala calidad de la conexión a la Internet durante la pandemia fueron variables correlacionadas con el consumo de alimentos no saludables. Conclusiones: Las condiciones del trabajo remoto durante la pandemia influyeron en las elecciones alimentarias de los docentes de la educación básica. Se necesitan más estudios para profundizar en los aspectos relacionados con las condiciones laborales de los docentes y sus implicaciones en la elección de sus alimentos(AU)

Perceived Neighbourhood Disorder, Alcohol Consumption and Alcohol-Related Problems in Chile.

Background: Alcohol misuse is one of the most important preventable public health risk factors. Empirical research shows that alcohol misuse is related to social and economic losses. Both theoretical and empirical evidence suggests that neighborhood disorder impacts alcohol-related behavior. However, there is limited literature in the context of developing countries. Objectives: The aim of this research is to estimate the association between perceived neighborhood disorder and (1) alcohol-related behavior and (2) alcohol-related problems in the context of the Chilean population. Our contribution focuses on the examination of the perception of disorder in urban neighborhoods and alcohol use patterns in a wide age range and sample of Chilean cities. Results: High levels of neighbor disorder perception are associated with higher levels of drinking and hazardous alcohol use. In addition, perceived neighborhood disorder is directly associated with probability of alcohol-related problems (ranging from 2% to 11%). Conclusions/Importance: The results are consistent with empirical and theoretical frameworks. This research could be used to better guide place-based policies in emerging countries with high levels of alcohol consumption to prevent alcohol risk behaviors and alcohol-related problems.

Higher heavy metal contamination indoors than outdoors during COVID-19 in Mexico City.

People spend most of their time indoors, especially during the coronavirus disease. Prolonged exposure to heavy metal-contaminated dust can be harmful to human health. The objectives of this study were to identify the contamination level in outdoor and indoor dust, compare contamination in both environments, and assess the human health risk. Two-hundred thirty-nine samples of dust were taken by Mexico City citizens in 38 homes on the weekends of May 2020. Heavy metal concentrations were measured through XRF. The contamination level was set using the contamination factor with a local and global background value, mixed linear models were used to identify indoor and outdoor differences, and USEPA human health risk methodology was used. Pb, Zn, and Cu had the highest contamination levels, followed by Sr and Mn, using both the local and global background values. The Pb, Zn, and Cu contamination was greater indoors, while higher Mn, Sr, and Fe were detected outdoors. According to the outdoor/indoor ratios, the main sources of Ca, Pb, Zn, and Cu must be indoors, while the main sources of Fe, Mn, Sr, Y, and Ti are outdoors. A human health risk was not detected, as the hazard index was lower than one. However, ailments can be developed due to exposure to Pb, Mn, and Fe in children (hazard index > 0.1). A higher risk due to Pb exposition was found indoors. Indoor environments in Mexico City were more contaminated by heavy metals and represented a higher risk to human health than outdoors during the pandemic isolation.

Total mercury and selenium levels in commercial shrimp along the Pacific coast of Mexico.

The present study analyzed the content of total mercury (THg) and selenium (Se) in the muscle of shrimp collected from local markets in the 11 Pacific coastal states of Mexico. Methylmercury (MeHg) concentration, Se:Hg ratio, health benefits value from selenium consumption (HBVSe) and the permissible weekly consumption were estimated to assess the health risk to consumers. All THg and Se concentrations were below the maximum permissible limits. All hazard quotient (HQ) values were <1, however in Hermosillo, Culiacán and Guadalajara, the Se:Hg ratio and HBVSe were <1 and negative, due to the low concentrations of Se. As a general conclusion, there is no risk nor benefit from the consumption of shrimp from the Pacific coast of Mexico due to its Hg and Se content.

Multiple potentially toxic elements in urban gardens from a Brazilian industrialized city.

Urban agriculture should be promoted as long as the food produced is safe for consumption. Located in the metropolitan region of São Paulo-Brazil, Santo André has intense industrial activities and more recently an increasing stimulus to urban gardening. One of the potential risks associated to this activity is the presence of potentially toxic elements (PTEs). In this study, the concentration of PTEs (As, Ba, Cd, Co, Cu, Cr, Ni, Mo, Pb, Sb, Se, V and Zn) was evaluated by soil (n = 85) and soil amendments (n = 19) in urban gardens from this municipality. Only barium was above regulatory limits in agricultural soil ranging from 20 to 112 mg kg-1. Geochemical indexes (Igeo, Cf and Er) revealed moderate to severe pollution for As, Ba, Cr, Cu, Pb Se and Zn, especialy in Capuava petrochemical complex gardens. A multivariate statistical approach discriminated Capuava gardens from the others and correlated As, Cr and V as main factors of pollution. However, carcinogenic and non-carcinogenic risks were below the acceptable range for regulatory purposes of 10-6-10-4 for adults. Soil amendments were identified as a possible source of contamination for Ba, Zn and Pb which ranged from 37 to 4137 mg kg-1, 20 to 701 mg kg-1 and 0.7 to 73 mg kg-1, respectively. The results also indicated the presence of six pathogenic bacteria in these amendments. Besides that, the occurrence of antimicrobial resistance for Shigella, Enterobacter and Citrobacter isolates suggests that soil management practices improvement is necessary.

Prevalence and associated factors of adverse childhood experiences (ACE) in a sample of Brazilian university students.

BACKGROUND: Adverse childhood experiences (ACEs) have long been associated with health risk behaviors, but they are poorly studied in Brazilian university students. OBJECTIVE: To estimate the prevalence of ACEs and investigate their association with sociodemographic data, health risk factors and self-related health in a sample of university students. PARTICIPANTS AND SETTING: A cross-sectional study conducted with 546 students from a Brazilian public university. METHOD: The self-reported 10-ACE Study questionnaire (ACE-Q) and sociodemographic information (age, sex, family income), health risk factors (body mass index, physical exercise, alcohol and tobacco use) and self-related health were assessed. Chi-square Test and multivariate logistic regression were used to evaluate the association between the cumulative occurrence of ACE (ACE ≥4) and the studied factors. RESULTS: Of the 546 participants, 464 responded to all ACE-Q questions; 74.4% reported at least one ACE, and 13.1 % reported four or more. Lower family income (OR = 2.02; 95%CI = 1.13-3.61; p = 0.01) and self-related poor health (OR = 2.29; 95%CI = 1.28-4.08; p = 0.00) were associated with the occurrence of ACE ≥4. CONCLUSION: Most students reported at least one ACE, while a minority reported ≥4 ACEs associated with lower family income and poor self-health. The data suggest that preventive actions should be considered to mitigate the problem, with lower-income students being treated as a priority.

Clustering of health risk behaviors in pregnant individuals: Data from the Brazilian risk factor surveillance system for non-communicable chronic diseases.

OBJECTIVE: To investigate the clustering of health risk behaviors (HRB) and its association with demographics, physical exercise, overweight, perception of health, and diseases in Brazilian pregnant people. STUDY DESIGN: This is a cross-sectional study using data from the Risk Factor Surveillance System for Non-communicable Chronic Diseases by Telephone Survey (VIGITEL), the main health survey in Brazil. METHODS: We used data on fruit and vegetable consumption, TV time, tobacco, and alcohol abuse in individuals who reported being pregnant (n = 4553). We used latent class analysis to identify optimal HRB clustering among participants. Multinomial regression (odds ratio [OR] and 95% confidence intervals [95%CI]) was applied to identify factors associated with HRB cluster. RESULTS: Three clustering classes were identified: "without HRB cluster" (i.e., least unhealthy behaviors) (n = 2402, 52,8%), "moderate HRB cluster" (n = 1983, 43,5%), and "high HRB cluster" (i.e., most unhealthy behaviors) (n = 168, 3,7%). Pregnant people aged 35-50 years (OR = 1.89, 95%CI = 1.01; 3.52) who did not practice physical exercise (OR = 1.94, 95%CI 1.11; 3.39) were more likely to be classified as "high HRB cluster". Participants with 9-11 years (OR = 0.11, 95%CI = 0.07; 0.17) and ≥ 12 (OR = 0.05, 95%CI = 0.02; 0.11) years of education had a lower likelihood of being in the "high HRB cluster". CONCLUSION: Three HRB clustering patterns were found in this study. Greater maternal age, low education, and absence of physical exercises increased the chances of being in the high HRB cluster group. Participants with higher educational levels were less likely to be in the High HRB cluster.

Study on the role of nano antibacterial materials in orthodontics (a review)

Abstract Nanoparticles (NPs) are insoluble particles with a diameter of fewer than 100 nanometers. Two main methods have been utilized in orthodontic therapy to avoid microbial adherence or enamel demineralization. Certain NPs are included in orthodontic adhesives or acrylic resins (fluorohydroxyapatite, fluorapatite, hydroxyapatite, SiO2, TiO2, silver, nanofillers), and NPs (i.e., a thin layer of nitrogen-doped TiO2 on the bracket surfaces) are coated on the surfaces of orthodontic equipment. Although using NPs in orthodontics may open up modern facilities, prior research looked at antibacterial or physical characteristics for a limited period of time, ranging from one day to several weeks, and the limits of in vitro studies must be understood. The long-term effectiveness of nanotechnology-based orthodontic materials has not yet been conclusively confirmed and needs further study, as well as potential safety concerns (toxic effects) associated with NP size.

Resumo Nanopartículas (NPs) são partículas insolúveis com diâmetro inferior a 100 nanômetros. Dois métodos principais têm sido utilizados na terapia ortodôntica para evitar a aderência microbiana ou a desmineralização do esmalte: NPs são incluídas em adesivos ortodônticos ou resinas acrílicas (fluoro-hidroxiapatita, fluorapatita, hidroxiapatita, SiO2, TiO2, prata, nanopreenchimentos) e NPs são revestidas nas superfícies de equipamentos ortodônticos, ou seja, uma camada fina de TiO2 dopado com nitrogênio nas superfícies do braquete. Embora o uso de NPs em ortodontia possa tornar acessível modernos recursos, pesquisas anteriores analisaram as características antibacterianas ou físicas por um período limitado de tempo, variando de 24 horas a várias semanas, por isso devem ser compreendidos os limites dos estudos in vitro. A eficácia de longo prazo de materiais ortodônticos com base em nanotecnologia ainda não foi confirmada de forma conclusiva, o que exige mais estudos, bem como potenciais preocupações de segurança (efeitos tóxicos) associadas ao tamanho da NP.

Early Use of Alcohol: Correlation with School Violence and Social-Emotional Skills / Uso Precoce do Álcool: Correlação com Violência Escolar e Competências Socioemocionais

Abstract This study aimed to analyze the association between early alcohol use in adolescence and associated factors: sociodemographic, involvement in bullying, risk behaviors at school, and social-emotional skills. It was carried out with 528 adolescents from full-time public high schools. Instruments: sociodemographic questionnaire, AUDIT, Victimization Scale among Students, Scale of Authorship of Student Violence, Risk Behavior Scale, and SENNA. In the final model, the variables with a significant association with early alcohol use by adolescents were: not having a religion (PR = 1.28, 95% CI [1.02, 1.60]), parental alcohol consumption (PR = 1.55, 95% CI [1.22, 1.97]), bullying (PR = 1.51, 95% CI [1.14, 1.98]), smoking at school (PR = 1.74, 95% CI [1.36, 2.24]), high engagement with others (PR = 2.59, 95% CI [1.40, 4.79]), and low emotional resilience (PR = 2.16, 95% CI [1.16, 4.03]), all indicating risk.

Resumo Este estudo objetivou analisar a associação entre o uso precoce de álcool na adolescência e fatores associados: sociodemográficos, envolvimento em bullying, comportamentos de risco na escola e competências socioemocionais. Foi realizado com 528 adolescentes de escolas públicas de Ensino Médio de tempo integral. Instrumentos: questionário sociodemográfico, AUDIT, Escala de Vitimização entre Alunos, Escala de Autoria de Violência a Alunos, Escala de Comportamentos de Risco e o SENNA. No modelo final, as variáveis com associação significativa foram: não ter uma religião (RP = 1,28; IC 95% [1,02; 1,60]), consumo de álcool dos pais (RP = 1,55; IC 95% [1,22; 1,97]), autoria de bullying (RP = 1,51; IC 95% [1,14; 1,98]), fumar na escola (RP = 1,74; IC 95% [1,36; 2,24]), alto engajamento com outros (RP = 2,59; IC 95% [1,40; 4,79]) e baixa resiliência emocional (RP = 2,16; IC 95% [1,16; 4,03]), todas indicando risco.

Molecular detection of IL-10 level to determine severity of periodontitis in type 2 Diabetes Mellitus patients / Detecção molecular do nível de IL-10 para determinar a gravidade da periodontite em pacientes com Diabetes Mellitus tipo 2

Objective: The prevalence of periodontal disease is increasing in most countries including developing and developed countries. It affects 20-50-% of the global population. Patients with type 2 Diabetes Mellitus (DM) with severe periodontal disease had a 3.2 times higher risk of death than individuals without periodontitis. Periodontitis contributes to small-scale systemic inflammation. The objective of this study was to determine the severity of periodontitis using IL-10 (Interleukin-10) level in type 2 diabetes mellitus. Materials and Methods: This study was cross-sectional. All methods were performed following the guidelines and regulations of the Ethics Committee, Faculty of Dental Medicine, Universitas Airlangga. The samples were 90 subjects. The instruments used were questionnaires, periodontal status measurements based on Community Periodontal Index (CPI), and random blood glucose measurements. Data on the IL-10 level was obtained using Gingival Crevicular Fluid (GCF). Results: There was a significant difference in lifestyle in each group. The highest IL-10 level was found in the periodontitis group, followed by the periodontitis with the type 2 DM group. Conclusion: The level of IL-10 can be used to determine periodontitis severity in type 2 DM. Most respondents with the highest level of IL-10 were found in periodontitis followed by periodontitis with type 2 DM group. High levels of IL-10 will decrease the synthesis of Tumor Necrosis Factor Alpha (TNF-α), Interleukin-1 (IL-1), Interleukin-6 (IL-6), activation of macrophages, and Polymorphonuclear neutrophil (PMN) (AU)

Objetivo: A prevalência da doença periodontal tem aumentado na maioria dos países, incluindo países em desenvolvimento e desenvolvidos, Afetando 20-50% da população global. Pacientes com Diabetes Mellitus tipo 2 (DM) com doença periodontal grave apresentaram risco 3,2 vezes maior de morte do que indivíduos sem periodontite. O objetivo deste estudo foi determinar a gravidade da periodontite utilizando o nível de IL-10 (Interleucina-10) no diabetes mellitus tipo 2. Materiais e Métodos: Este estudo transversalfoi realizadoseguindo as orientações e regulamentos do Comitê de Ética da Faculdade de Medicina Dentária da Universitas Airlangga. Noventa participantes,responderam um questionário e foram examinados , para o estado periodontal, baseadas no Índice Periodontal Comunitário (IPC) e medidas aleatórias de glicemia. Os dados do nível de IL-10 foram obtidos utilizando Fluido Crevicular Gengival (GCF). Resultados: Houve uma diferença significativa no estilo de vida em cada grupo. O nível mais alto de IL-10 foi encontrado no grupo com periodontite, seguido pela periodontite com o grupo DM tipo 2. Conclusão: O nível de IL-10 pode ser utilizado para determinar a gravidade da periodontite no DM tipo 2. A maioria dos participantes com maior nível de IL-10 estava no grupo periodontite seguida de periodontite com DM tipo 2. Altos níveis de IL-10 diminuiem a síntese do Fator de Necrose Tumoral Alfa (TNF-α), Interleucina-1 (IL-1), Interleucina-6 (IL-6), ativação de macrófagos e neutrófilos polimorfonucleares (PMN) (AU)