547,785 results match your criteria: "Brazil ; Center for Integrative Systems Biology[Affiliation]"

Atherosclerotic vascular changes can begin during childhood, providing risk for cardiovascular disease (CVD) in adulthood. Identifiable risk factors such as dyslipidemia accelerate this process for some children. The apolipoprotein B (APOB) gene could help explain the inter-individual variability in lipid levels among young individuals and identify groups that require greater attention to prevent CVD.

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This study aimed to evaluate the histological success of pulpotomy in primary molars using white mineral trioxide aggregate (WMTA) mixed with 2.25% sodium hypochlorite (NaOCl) gel and to evaluate in vitro its physical and chemical properties. The study had a clinical stage and an in-vitro stage.

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Animals have evolved numerous mechanisms to perceive and interact with the environment that can be translated into different sensory modalities. However, the genomic and phenotypic features that support sensory functions remain enigmatic for many invertebrates, such as bivalves, an ecologically and economically important taxonomic group. No repertoire of sensory genes has been characterized in bivalves, representing a significant knowledge gap in molluscan sensory biology.

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Background: Benzodiazepines are the third most misused medication, with many patients having their first exposure during a surgical episode. We sought to characterize factors associated with new persistent benzodiazepine use (NPBU) among patients undergoing cancer surgery.

Patients And Methods: Patients who underwent cancer surgery between 2013 and 2021 were identified using the IBM-MarketScan database.

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A recent study proposed a new genetic lineage of leatherback turtles (Dermochelys coriacea) based on genetic analysis, environmental history, and local ecological knowledge (LEK), suggesting the existence of two possible species or subspecies on the beaches of Oaxaca, diverging ~ 13.5 Mya. However, this hypothesis may be influenced by nuclear mitochondrial DNA segments (NUMTs), which could have been misamplified as true mtDNA.

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Vancomycin administration and AUC/MIC in patients with acute kidney injury on hemodialysis (HD): randomized clinical trial.

Sci Rep

December 2024

Internal Medicine Department - Nephrology, Botucatu School of Medicine, University São Paulo State-UNESP, District of Rubiao Junior, Botucatu, Sao Paulo, Brazil.

The pharmacokinetics and pharmacodynamics (PK/PD) of vancomycin change during HD, increasing the risk of subtherapeutic concentrations. The aim of this study was to evaluate during and after the conventional and prolonged hemodialysis sessions to identify the possible risk of the patient remaining without adequate antimicrobial coverage during therapy. Randomized, non-blind clinical trial, including critically ill adults with septic AKI on conventional (4 h) and prolonged HD (6 and 10 h) and using vancomycin for at least 72 h.

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We evaluate the evidence of cryptic speciation in Larimus breviceps, a species widely distributed in the western South Atlantic, from the Greater Antilles to Santa Catarina in Brazil. Mitochondrial (COI, Cyt b, and Control Region) and nuclear (IGF1 and Tmo-4C4) sequences were obtained from populations in the western South Atlantic. The analysis revealed two genetically distinct, sympatric lineages with no gene flow, with L.

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The aim of this study was to evaluate the effects of two styles of classical music, based on different tempos (BPM), on the physiological and blood parameters of horses during social isolation and restriction of movements. First experiment was carried out using nine horses of no defined breed, distributed in Control, Slow-tempo music and Moderate-tempo music .For social isolation and restriction of movement, the animals were housed daily in individual stalls for two hours and exposed to the stimuli for 60 min, and eye temperature, heart rate, and respiratory rate were assessed.

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The negative effects of land-use changes on biodiversity significantly contribute to climate change. Primates are among the animals most affected by these changes, because of their high dependence on forest cover where a lack of forest connectivity can limit their dispersal and segregate their populations. In this sense, protected areas (PAs) are crucial for conserving endangered primates, especially endemic species.

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Treatment of complex craniofacial deformities is still a challenge for medicine and dentistry because few approach therapies are available on the market that allow rehabilitation using 3D-printed medical devices. Thus, this study aims to create a scaffold with a morphology that simulates bone tissue, able to create a favorable environment for the development and differentiation of osteogenic cells. Moreover, its association with Plenum Guide, through cell-based tissue engineering (ASCs) for guided bone regeneration in critical rat calvarial defects.

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Large-scale proteogenomics characterization of microproteins in Mycobacterium tuberculosis.

Sci Rep

December 2024

Centro de Pesquisas em Biologia Molecular e Funcional (CPBMF) and Instituto Nacional de Ciência e Tecnologia em Tuberculose (INCT-TB), Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, 90619-900, Brazil.

Tuberculosis remains a burden to this day, due to the rise of multi and extensively drug-resistant bacterial strains. The genome of Mycobacterium tuberculosis (Mtb) strain H37Rv underwent an annotation process that excluded small Open Reading Frames (smORFs), which encode a class of peptides and small proteins collectively known as microproteins. As a result, there is an overlooked part of its proteome that is a rich source of potentially essential, druggable molecular targets.

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Impact of COVID-19 on heart rate variability in post-COVID individuals compared to a control group.

Sci Rep

December 2024

Cardiopulmonary Physiotherapy Laboratory, Physical Therapy Department, Universidade Federal de São Carlos, Rodovia Washington Luiz, São Carlos, SP, 13565-905, Brazil.

This study investigated the impact of mild COVID-19 on HRV in groups stratified by time after infection and to compare to a healthy group of the same age without previous virus infection and without need of hospitalization. This is a cross-sectional study. We divided the sample into four groups: control group (CG) (n = 31), group 1 (G1): ≤6 weeks (n = 34), group 2 (G2): 2-6 months (n = 30), group 3 (G3): 7-12 months (n = 35) after infection.

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Ehrlichia sp. in dairy cattle from Bahia, Brazil: high seropositivity rates and molecular confirmation of Ehrlichia minasensis.

BMC Vet Res

December 2024

Departamento de Anatomia, Patologia e Clínicas Veterinárias, Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Av. Milton Santos 500, Salvador, Bahia, CEP 40170-110, Brazil.

Background: Ehrlichia spp. are obligate intracytoplasmic Gram-negative tickborne bacteria from the Anaplasmataceae family. Ehrlichiosis is considered an emerging disease in humans and animals.

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Background: Effective communication with patients and their families is a fundamental skill for medical students to cultivate during their undergraduate training. However, communicating with pediatric patients presents unique challenges. This study investigated the perceptions, attitudes, and confidence levels of undergraduate medical students regarding communication skills in pediatrics.

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Objectives: This study aimed to verify if composites containing dicalcium phosphate dihydrate particles (DCPD) are able to induce dentin remineralization in vitro. Additionally, the mechanical properties of the materials were tested.

Methods: Four composites with 50 vol% inorganic content and 1 BisGMA: 1 TEGDMA (mols) were prepared, with different DCPD:glass ratios (50:0, 40:10, 30:20 and 0:50).

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Inequalities in ownership and availability of home-based vaccination records in 82 low- and middle-income countries.

BMJ Glob Health

December 2024

Department of Immunization, Vaccines, and Biologicals, World Health Organization, Geneva, Switzerland.

Introduction: Home-based records (HBRs) are widely used for recording health information including child immunisations. We studied levels and inequalities in HBR ownership in low-income and middle-income countries (LMICs) using data from national surveys conducted since 2010.

Methods: We used data from national household surveys (Demographic and Health Surveys (DHS) and Multiple Indicator Cluster Surveys (MICS)) from 82 LMICs.

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Background: Fluoxetine, a serotonin reuptake inhibitor antidepressant, raises extracellular serotonin levels and promotes angiogenesis and neurogenesis. Numerous animal models have shown its beneficial effects on recovery from peripheral nerve injury.

Purpose: The primary objective of this study was to analyze the influence of fluoxetine on the sensory-motor function recovery of the sciatic nerve in Wistar rats after axonotmesis.

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Carboxysomes: The next frontier in biotechnology and sustainable solutions.

Biotechnol Adv

December 2024

Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah 23955, Saudi Arabia. Electronic address:

Some bacteria possess microcompartments that function as protein-based organelles. Bacterial microcompartments (BMCs) sequester enzymes to optimize metabolic reactions. Several BMCs have been characterized to date, including carboxysomes and metabolosomes.

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Regular Consumption of Black Tea Kombucha Modulates the Gut Microbiota in Individuals with and Without Obesity.

J Nutr

December 2024

Bioactive Compounds and Carbohydrates (BIOCARB) Research Group - Department of Food Science and Technology, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Viçosa, MG, 36570-900, Brazil. Electronic address:

Background: Kombucha, a fermented beverage obtained from a Symbiotic Culture of Bacteria and Yeast (SCOBY), has shown potential in modulating gut microbiota, although no clinical trials have been done.

Objective: We aimed to evaluate the effects of regular black tea kombucha consumption on intestinal health in individuals with and without obesity.

Methods: A pre-post clinical intervention study was conducted lasting eight weeks.

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RIFM fragrance ingredient safety assessment, geranyl crotonate, CAS Registry Number 56172-46-4.

Food Chem Toxicol

December 2024

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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Update to RIFM fragrance ingredient safety assessment, 2-methyl-4(2,2,3-trimethyl-3-cyclopentenyl)butanol, CAS Registry Number 72089-08-8.

Food Chem Toxicol

December 2024

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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RIFM fragrance ingredient safety assessment, β-pinene, CAS Registry Number 127-91-3.

Food Chem Toxicol

December 2024

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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Pharmacological blockade of infection chronification modulates oxy-inflammation and prevents the activation of stress-induced premature senescence markers in schistosomiasis.

Microb Pathog

December 2024

Departamento de Biologia Animal (DBA), Programa de Pós-Graduação em Biologia Animal (PPGBA), Universidade Federal de Viçosa (UFV), Viçosa, 36570-900, Minas Gerais, Brazil.

Chronic inflammation, oxidative stress, and DNA damage are observed in schistosomiasis and premature aging. However, the potential of these events to trigger stress-induced premature senescence (SIPS) throughout schistosomiasis progression remains overlooked, especially in response to the first-line pharmacological treatment. Thus, we investigated the relationship between oxidative stress and SIPS sentinel markers in untreated Schistosoma mansoni-infected mice and those receiving praziquantel (Pz)-based reference treatment.

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Background: Anxiety disorders are widespread across the world. Understanding the global burden of anxiety disorders in the past and future can provide important references for optimizing prevention and control strategies in healthcare systems.

Methods: The estimation of anxiety disorders in the Global Burden of Disease Study 2021 using systematic review was conducted to describe incidence, prevalence and disability adjusted life years (DALYs) in 204 countries and regions from 1990 to 2021.

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From indoors to outdoors: Impact of waste anesthetic gases on occupationally exposed professionals and related environmental hazards - a narrative review and update.

Environ Toxicol Pharmacol

December 2024

São Paulo State University (UNESP), Medical School, Division of Anesthesiology, GENOTOX Lab., Botucatu, São Paulo, Brazil. Electronic address:

Waste anesthetic gases (WAGs) are trace-concentration inhaled anesthetics that exist worldwide because they are released into the ambient air of operating rooms (ORs) and post-anesthesia care units. WAGs cause indoor contamination, especially in ORs lacking proper scavenging systems, and occupational exposure, while promoting climate change through greenhouse gas/ozone-depleting effects. Despite these controversial features, WAGs continue to pose occupational health hazards.

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