549,574 results match your criteria: "Brazil; Aggeu Magalhaes Research Center[Affiliation]"

Dapsone-induced methemoglobinemia in a child with leprosy.

An Bras Dermatol

January 2025

Dermatology Clinic, Hospital da Santa Casa de São Paulo, São Paulo, SP, Brazil; Discipline of Dermatology, Faculty of Medical Sciences, Santa Casa de São Paulo, São Paulo, SP, Brazil.

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Chrononutrition patterns and their association with body weight: Differences across multiple chronotypes.

Endocrinol Diabetes Nutr (Engl Ed)

January 2025

Research Group 'Chronobiology, Nutrition and Health', Faculty of Nutrition, Federal University of Alagoas, Brazil.

Introduction: In recent years, the focus of research on obesity and its management has expanded beyond traditional dietary factors to include the timing of food intake - in relation to the body's circadian rhythms - known as chrononutrition. However, chrononutrition patterns remain largely unexplored in low-medium income countries. Our study aimed to investigate the association between chrononutrition patterns and BMI.

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Introduction: Although sodium-glucose cotransporter-2 inhibitors (SGLT2i) were shown to lower hyperuricemic events in patients with type 2 diabetes mellitus (T2DM), the extent of this effect in the general population is yet to be elucidated. We performed an updated systematic review and meta-analysis on a large sample of patients with and without T2DM to evaluate the influence of SGLT2i therapy on clinically relevant hyperuricemic events, defined as the composite of acute gout flare episodes, acute anti-gout management or urate-lowering therapy initiation. Furthermore, we conducted a multivariate meta-regression to assess the relationship between different covariates and the pooled effect size.

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The separation and structural identification of glycans are of great bioanalytical importance. To obtain a good understanding of the structural flexibility of glycans, replica exchange molecular dynamics (REMD) simulations were used based on AMBER force field calculations to create ensembles of glycan structures. Nonpolar surface area (NPSA) calculations based on continuum solvation (CS) models (Dhakal, R.

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Four Decades of Treatment for Actinic Cheilitis: Outcomes, Challenges, and the Introduction of a New Clinical Index.

J Stomatol Oral Maxillofac Surg

January 2025

Department of Surgery, Stomatology, Pathology, and Radiology, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, SP 17012-901 Brazil. Electronic address:

Objective: To evaluate the clinical outcomes of surgical and non-surgical treatments for actinic cheilitis (AC) over a four-decade period and to introduce a novel Clinical Index for the Treatment and Control of Actinic Cheilitis (CITC-AC) for improved patient stratification and management.

Materials And Methods: A retrospective cohort study analyzed 151 patients diagnosed with AC treated at a university clinic between 1980 and 2020. Sociodemographic, clinical, and histopathological data were collected.

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RIFM fragrance ingredient safety assessment, 2-phenoxyethyl isobutyrate, CAS Registry Number 103-60-6.

Food Chem Toxicol

January 2025

Member Expert Panel for Fragrance Safety, The Journal of Dermatological Science (JDS), , Department of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan.

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Dose-related effects of eugenol: Exploring renal functionality and morphology in healthy Wistar rats.

Food Chem Toxicol

January 2025

Laboratory of Structural Biology, Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil; Department of Veterinary, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil. Electronic address:

Eugenol has pharmacological properties, but its impact on renal function is limitedly studied. Thus, this study evaluated the effects of eugenol at 10, 20, and 40 mg kg, administered via gavage for 60 days, on histological, biochemical, oxidative, and proteomic parameters in rat kidneys. Adult Wistar rats treated with 10 mg kg of eugenol had kidneys with low total antioxidant capacity, high nitric oxide content, and high percentual of blood vessels, with no damage to renal function or morphology.

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This study aims to verify the effects of prolonged ingestion of coconut oil on the adrenal glands of Mongolian gerbils. Mongolian gerbils were used as an experimental model due to the morphological similarity of the adrenal glands to those of primates. Male Mongolian gerbils, 3 months of age, were divided into three experimental groups (n = 12): an intact control group, which received no treatment, a gavage control group, which received 0.

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This article uses a compartmental model describing the dynamic of the chikungunya virus in populations of humans and mosquitoes with parameters fitted to the incidence in Brazil to estimate the economic trade-off of vaccination against the virus infection. The model uses time-dependent parameters to incorporate fluctuations in the transmission and the mosquito population across the years. Using the model predictions of symptomatic infections and literature data concerning the proportions of post-acute and chronic cases, the vaccination cost is compared with the disease cost.

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Paeniclostridium sordellii is responsible for severe infections in horses, cattle, and sheep, however, conventional vaccines exhibit limitations in production and immunogenicity. This study assessed the immunogenicity of a recombinant bacterin composed of a chimera (rQTcsHL) that combines segments from the lethal (TcsL) and hemorrhagic (TcsH) toxins in mice and sheep. Both immunized animal groups exhibited elevated levels of IgG, with the mice demonstrating moderate protection (<50 %) against lethal challenges, comparable to that of the conventional vaccine.

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The Min system is a key spatial regulator of cell division in rod-shaped bacteria and the first FtsZ negative modulator to be recognized. Nevertheless, despite extensive genetic and in vitro studies, the molecular mechanism used by MinC to inhibit Z-ring formation remains incompletely understood. The crystallization of FtsZ in complex with other negative regulators such as SulA and MciZ has provided important structural information to corroborate in vitro experiments and establish the mechanism of Z-ring antagonism by these modulators.

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Background: The study aimed at developing and validating a bilingual competency self-assessment tool for infection prevention and control practitioners based on the core competencies proposed by the World Health Organization (WHO).

Methods: The study was conducted from December/2021 to June/2023. The bilingual tool (Brazilian Portuguese and English versions) was developed according to four stages: 1) conceptual framework establishment and item generation; 2) content validity; 3) response process validity; and 4) internal structure validity.

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Protein hydrolysates derived from superworm (Zophobas morio): Composition, bioactivity, and techno-functional properties.

Int J Biol Macromol

January 2025

Laboratory of Food Technology, School of Chemistry and Food Engineering, Federal University of Rio Grande, FURG, Av. Itália, Km 08, 96203-900, Brazil; Graduate Program in Aquaculture, Federal University of Rio Grande - FURG, Av. Itália, Km 08, Rio Grande, RS 96201-900, Brazil.

This study aimed to produce protein hydrolysates from superworm (Zophobas morio) flour using the enzymes alcalase (HA), protamex (HP), or flavourzyme (HF), and to characterize their nutritional composition, techno-functional properties, bioactive capacity, and bioaccessibility index. The enzymatic process increased the total amino acid and crude protein contents of the hydrolysates by approximately 36 % and 46 %, respectively, generating better foaming capacity, oil retention, and emulsification capacity, when compared to raw flour. Although 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical capture was similar between the hydrolysates, HA (1479,66 μM FeSO/g) and HP (1514,66 μM FeSO/g) showed greater antimicrobial and iron reducing power (FRAP) activity, while HF has a higher scavenging efficiency for the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical (27.

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Eversa Transform (ETL) was immobilized on octyl agarose beads at two different enzymes loadings (1 mg/g and 15 mg/g) under 18 different conditions, including different pH values, buffers, additives (different solvents, Ca, NaCl). Their activity was analyzed at pH 5 and 7 with p-nitrophenyl butyrate and at pH 5 with triacetin, determining also its stability at pH 5 and 7 (in different media). Ca stabilized ETL biocatalysts while phosphate destabilized them.

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Unveiling the role of artificial intelligence applied to clear aligner therapy: A scoping review.

J Dent

January 2025

OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven & Department of Oral and Maxillofacial Surgery, University Hospitals, Campus Sint-Rafael, 3000 Leuven, Belgium; Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden. Electronic address:

Objectives: To conduct a scoping review on the application of artificial intelligence (AI) in clear aligner therapy and to assess the extent of AI integration and automation in orthodontic software currently available to orthodontists.

Data And Sources: A systematic electronic literature search was performed in the following databases: PubMed, Embase, Web of Science, Cochrane Library, and Scopus. Also, grey literature resources up to March 2024 were reviewed.

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Objectives: To investigate the prevalence and factors associated with dentin hypersensitivity (DH) and non-carious cervical lesions (NCCLs).

Methods: The analytical cross-sectional study included 157 participants aged between 18 and 45 years, who were clinically examined and answered a questionnaire related to their lifestyle and daily habits (diet, parafunctional habits, temporomandibular disorders, general and oral health) and the Beck Anxiety Inventory. A descriptive analysis of the prevalence of DH and NCCL was performed, both at the individual level and considering the distribution among the teeth.

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Peri-implantitis associated with dental implants shares characteristics with destructive periodontal diseases. Both conditions are multifactorial and strongly correlated with the presence of microorganisms surrounding the prostheses or natural dentition. This study aimed to evaluate the antimicrobial activity and toxicity of a mucoadhesive hydrogel functionalized with aminochalcone (HAM-15) against Aggregatibacter actinomycetemcomitans, Fusobacterium periodonticum, Prevotella intermedia, Porphyromonas gingivalis, Tannerella forsythia, and Candida albicans.

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Analysis of fibrinogenolytic activity of South American Bothrops and Crotalus venoms reveals widespread variation on human fibrinogen cleavage.

Toxicon

January 2025

Laboratório de Fisiopatologia, Instituto Butantan, São Paulo, Brazil; Laboratório de Herpetologia, Instituto Butantan, São Paulo, Brazil; Interunidades em Biotecnologia, Universidade de São Paulo - Instituto de Pesquisas Tecnológicas - Instituto Butantan, São Paulo, Brazil. Electronic address:

Fibrinogen is a common target of SVMP and SVSP. These toxins can destructively cleave fibrinogen, leading to the depletion of its levels. Herein we comparatively describe the fibrinogenolytic activity of the venom of Bothrops and Crotalus snakes, viperids of high epidemiological importance in Brazil.

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