Cascade reservoirs affect mercury concentrations in fish from Teles Pires river, Brazilian Amazon.

Hydroelectric reservoirs favor mercury contamination in biota, but the contamination in cascade reservoirs is not yet clear. We investigated total mercury (THg) contamination in fish in four cascade reservoirs in the Brazilian Amazon between August 2022 and April 2023. Overall, downstream predatory fish showed higher mercury concentrations than those upstream.

Multicenter research in dialysis centers in Brazil: recruitment and implementation of the SARC-HD study.

Introduction: Multicenter research initiatives in Brazilian dialysis centers are scarce. We described the recruitment and implementation phases of the SARC-HD study, aimed at investigating sarcopenia and its impact on adverse clinical outcomes.

Methods: The SARC-HD is a cohort study being conducted with patients on hemodialysis in Brazil.

Public resources on the Brazilian Food and Nutrition Security agenda from 2000 to 2022.

To analyze the time trend of federal public resources invested in the Brazilian Food and Nutrition Security agenda from 2000-2022. A time series study was carried out with data collected from a publicly accessible system on the Federal Government's planning and budget. We analyzed the budget actions and their resources indicated by the Budget Allocation and the Settled Amount.

DIAGNOSIS AND TREATMENT OF MICROSCOPIC COLITIS: POSITION PAPER ON BEHALF OF THE BRAZILIAN FEDERATION OF GASTROENTEROLOGY.

Background: Microscopic colitis (MC) is a chronic inflammatory condition of the colon, primarily characterized by watery diarrhea, with normal or near-normal endoscopic findings. It encompasses two main subtypes: lymphocytic colitis and collagenous colitis.

Objective: This position paper from the Brazilian Federation of Gastroenterology aims to review current evidence on the diagnosis and management of MC in Brazil, emphasizing the need for standardization across the country's healthcare systems.

CHONDROITIN SULFATE AND GLUCOSAMINE SULFATE AS PROTECTIVE AND ANTI-INFLAMMATORY AGENTS IN THE ULCERATIVE COLITIS DSS MODEL IN RATS.

Chondroitin sulfate (CS) and glucosamine (GlcN) are indicated for the treatment of some inflammatory diseases, such as osteoarthritis, mainly because of the anti-inflammatory effects in reducing metalloproteinases activities (MMP), and other inflammatory mediators. Herein, we reported the structure of the CS, the anti-inflammatory and protective effects of the CS, and GlcN administration in ulcerative colitis model induced by dextran sulfate sodium (DSS) in rats. Experimental data indicated that CS disaccharide composition is very similar to the C4S standard, with modal molecular weight at 30.

ASSOCIATION OF "METABOLIC DYSFUNCTION-ASSOCIATED STEATOTIC PANCREAS DISEASE" (MASPD) AND INSULIN RESISTANCE.

Background: To investigate the association between metabolic dysfunction-associated steatotic pancreas disease (MASPD) and insulin resistance (IR).

Methods: This cross-sectional study involved 157 participants diagnosed with MASPD based on ultrasonography criteria. Baseline demographic data were collected, including age, gender, and body mass index.

MONITORING RESPIRATORY BIOMECHANICS, LUNG CAPACITY AND MOBILITY IN BARIATRIC SURGERY: PERIOPERATIVE ANALYSIS.

Background: Several preoperative pulmonary assessment protocols have been established over the years, but assessments of this magnitude are lacking in the bariatric population. Therefore, the assessment of lung capacity, maximum inspiratory and expiratory pressures, the peak expiratory flow and mobility can be predictors of operative safety and determine the time of hospital discharge.

Objective: To evaluate lung capacity, respiratory muscle strength and level of mobility in the pre, immediate post-operative and hospital discharge of patients undergoing bariatric surgery.

A POSSIBLE ROLE OF HEPCIDIN IN INTESTINAL INFLAMMATION.

Background: Hepcidin's main function is to control iron availability to hematopoiesis. However, it has been shown that hepcidin may have an additional role in intestinal inflammation, as intestinal cells and leukocytes increase the production in experimental colitis and Crohn's disease.

Objective: Using an HT-29 cell as a model, we investigated the role of hepcidin in intestinal inflammation.

EARLY NONINVASIVE EVALUATION OF LIVER FIBROSIS AFTER HEPATITIS C TREATMENT: THE IMPACT OF INFLAMMATION.

Background: Liver biopsy (LB) is still the gold standard method for assessing hepatic fibrosis (HF), associated diseases, and liver inflammation. Nowadays, noninvasive techniques such as Acoustic radiation force impulse (ARFI) elastography have been introduced instead of liver biopsy. However, there are controversies about the time it should be performed after treatment for hepatitis C virus (HCV).

TRANSLATION, CROSS-CULTURAL ADAPTATION, AND VALIDATION OF THE IBD DISK FOR USE IN PATIENTS WITH INFLAMMATORY BOWEL DISEASES IN THE BRAZILIAN POPULATION.

Background: The inflammatory bowel disease (IBD) disk is a simple and quick method to assess the level of disability experienced by patients with IBD. It has been already translated and validated in European countries, however it was not yet translated and validated to use in Brazil.

Objective: This study was performed to translate and validate a Brazilian version of the IBD-Disk.

Environmental Dissemination of SARS-CoV-2: An Analysis Employing Crassphage and Next-Generation Sequencing Protocols.

This study aimed to investigate the dissemination of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in water samples obtained during the coronavirus disease 2019 pandemic period, employing cross-assembly phage (crAssphage) as a fecal contamination biomarker and next-generation sequencing protocols to characterize SARS-CoV-2 variants. Raw wastewater and surface water (stream and sea) samples were collected for over a month in Rio de Janeiro, Brazil. Ultracentrifugation and negatively charged membrane filtration were employed for viral concentration of the wastewater and surface water samples, respectively.

Evaluating the Immunoprotective and Diagnostic Potential of Schistosoma mansoni Epitopes from Sm050890 and Sm141290 Proteins Identified Through Reverse Vaccinology.

Purpose: Schistosomiasis remains a parasitic disease affecting millions of people worldwide, requiring interventions like vaccination. In previous work, our group used reverse vaccinology to identify two epitopes from the Schistosoma mansoni proteins, Sm050890 (44-58) and Sm141290 (225-239). This study evaluated the immune response profile and protection induced by peptides, as a mixture of immunogens, in murine vaccination trials.

Genetic characterization of paternal lineages by Y-STR in three sample populations in Northeastern Brazil.

Genetic markers of the Y chromosome are powerful tools for investigating paternal ancestry and are widely used in population and forensic genetics. However, in order to obtain statistics with a higher degree of certainty using these markers, it is necessary to obtain haplotypic frequencies from a representative database, as well as knowing the diversity and structure of the population. The aim of this study was to investigate the genetic diversity of a sample of 1114 unrelated men from three states in the Northeast of Brazil: Paraíba, Pernambuco and Ceará, through the analysis of 23 Y-STRs and to contribute to the expansion of the Brazilian database on these markers.

[Effect of an intervention in physical education classes on the reduction of sedentary behavior in adolescents].

This study aimed to analyze the effect of different intervention strategies in physical education classes on the reduction of sedentary time. This is a randomized, school-based intervention with factorial characteristics, carried out with freshmen high school students from 11 full-time schools, allocated in three intervention situations: (A) schools with two extra physical education classes per week; (B) schools with training and engagement actions for physical education teachers; (C) Schools with both A and B strategies; and (D) a group of control schools. Accelerometry was used to obtain the effect measure of the main outcome (sedentary behavior).

Comparison of the audit method and secondary data sources for assessing health-related characteristics of the built environment in a Brazilian city.

This study compared the audit method and secondary data sources for assessing health-related characteristics of the built environment in a Brazilian city. Study sample included 45 census tracts chosen by systematic random sampling, and 36 homes selected from each, from a population-based study. Each neighborhood was delimited by a 400m buffer around the midpoint of the homes.

Use of text messages to promote medication adherence and reduce blood pressure in patients with hypertension: the ESSENCE study.

The ESSENCE study evaluated the effect of sending text messages with and without reminders of the time of medication use on adherence to medication treatment and the reduction of blood pressure in patients with hypertension. This was a randomized, crossover, double-blind, active-controlled clinical trial, which included patients aged 30-69 years, followed up at a community pharmacy. Messages were automatically sent using a software and were received on the participants' smartphones.

How do machine learning models perform in the detection of depression, anxiety, and stress among undergraduate students? A systematic review.

Undergraduate students are often impacted by depression, anxiety, and stress. In this context, machine learning may support mental health assessment. Based on the following research question: "How do machine learning models perform in the detection of depression, anxiety, and stress among undergraduate students?", we aimed to evaluate the performance of these models.

Perceptions about children and adolescents' mental health crisis intervention: a qualitative systematic review.

This review aimed to identify and synthesize the perceptions of mental healthcare professionals, family members, and users about mental health crisis interventions for children and adolescents at hospitals and community mental health services. A qualitative systematic review was conducted following the Joanna Briggs Institution guidelines. The search was performed in 15 databases, with no temporal delimitation, and included studies in Portuguese, English, and Spanish.

Early warning system using primary health care data in the post-COVID-19 pandemic era: Brazil nationwide case-study.

Syndromic surveillance using primary health care (PHC) data is a valuable tool for early outbreak detection, as demonstrated by the potential to identify COVID-19 outbreaks. However, the potential of such an early warning system in the post-COVID-19 era remains largely unexplored. We analyzed PHC encounter counter of respiratory complaints registered in the database of the Brazilian Unified National Health System from October 2022 to July 2023.