225,268 results match your criteria: "CenterSão Paulo[Affiliation]"

Leishmania mexicana N-Acetyltransferease 10 Is Important for Polysome Formation and Cell Cycle Progression.

Mol Microbiol

January 2025

Laboratório de Biologia Molecular de Patógenos (LBMP), Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo (Unifesp), São Paulo, Brazil.

Leishmania presents a complex life cycle that involves both invertebrate and vertebrate hosts. By regulating gene expression, protein synthesis, and metabolism, the parasite can adapt to various environmental conditions. This regulation occurs mainly at the post-transcriptional level and may involve epitranscriptomic modifications of RNAs.

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Asthma is a complex disease with varied clinical manifestations resulting from the interaction between environmental and genetic factors. While chronic airway inflammation and hyperresponsiveness are central features, the etiology of asthma is multifaceted, leading to a diversity of phenotypes and endotypes. Although most research into the genetics of asthma focused on the analysis of single nucleotide polymorphisms (SNPs), studies highlight the importance of structural variations, such as copy number variations (CNVs), in the inheritance of complex characteristics, but their role has not yet been fully elucidated in asthma.

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Objective: To compare the treatment of osteoradionecrosis (ORN) using a protocol that incorporates antimicrobial photodynamic therapy with a conventional treatment protocol.

Methodology: This retrospective study analyzed 55 patients diagnosed with ORN at a reference hospital between 2002 and 2021. Patients were treated using two different clinical protocols.

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Dental maxillary sinus pathology: a CBCT-based case-control study.

Odontology

January 2025

Division of Oral Radiology, Faculdade São Leopoldo Mandic, Rua Dr. José Rocha Junqueira 13 Campinas, São Paulo, 13045-755, Brazil.

This study evaluated the association between dental infection and maxillary sinus pathology, and the influence of age, sex, type of tooth, root proximity to the sinus floor, the condition of the primary maxillary ostium, and the presence of an accessory maxillary ostium in this process. Computed Tomography scans were selected, and upper posterior teeth were evaluated for the presence of apical periodontitis (AP), bone loss with furcation involvement, and endoperiodontal lesion (EPL), subsequently, sinuses were evaluated for mucosal thickening (MT) and opacification of the maxillary sinus (OMS). Logistic regression models were constructed, and Chi-squared and Fisher's tests were applied.

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Oncolytic alphavirus-induced extracellular vesicles counteract the immunosuppressive effect of melanoma-derived extracellular vesicles.

Sci Rep

January 2025

Center for Translational Research in Oncology (LIM/24), Instituto do Cancer do Estado de Sao Paulo, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, CEP 01246-000, Brazil.

Extracellular vesicles (EVs)-mediated communication by cancer cells contributes towards the pro-tumoral reprogramming of the tumor microenvironment. Viral infection has been observed to alter the biogenesis and cargo of EVs secreted from host cells in the context of infectious biology. However, the impact of oncolytic viruses on the cargo and function of EVs released by cancer cells remains unknown.

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Exploring the potential of machine learning models to predict nasal measurements through facial landmarks.

J Prosthet Dent

January 2025

Professor and Chairman, Department of Prosthodontics, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, United States. Electronic address:

Statement Of Problem: Information on predicting the measurements of the nose from selected facial landmarks to assist in maxillofacial prosthodontics is lacking.

Purpose: The objective of this study was to identify the efficiency of machine learning models in predicting the length and width of the nose from selected facial landmarks.

Material And Methods: Two-dimensional frontal and lateral photographs were made of 100 men and 100 women.

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Prognostic Value of Response Evaluation Using PSMA PET/CT in Patients with Metastatic Prostate Cancer (RECIP 1.0): A Systematic Review and Meta-analysis.

Acad Radiol

January 2025

University Medical Imaging Toronto, Joint Department of Medical Imaging, University Health Network-Sinai Health System -Women's College Hospital, University of Toronto, Toronto, ON, Canada (S.A.M., P.V.H., U.M., A.B.D.). Electronic address:

Rationale And Objectives: Recently, the Response Evaluation Using PSMA PET/CT in Patients with Metastatic Castration-Resistant Prostate Cancer (RECIP 1.0) was proposed to better evaluate treatment response in prostate cancer patients using PET/CT with prostate-specific membrane antigen (PSMA) than more traditional approaches like metabolic PET evaluation response criteria in solid tumor (PERCIST 1.0).

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Decompressive craniectomy for people with intracerebral haemorrhage: the SWITCH trial.

Lancet

January 2025

Intensive Care Unit, AC Camargo Cancer Center, São Paulo, Brazil; Medical ICU, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-000, Brazil; D'Or Institute for Research and Education, Rio de Janeiro, Brazil. Electronic address:

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Unveiling the potential of pullulan in enhancing ketoprofen release from PHBV filaments.

Int J Biol Macromol

January 2025

Chemical Engineering Department, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo, Brazil. Electronic address:

In this study, sustainable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and pullulan (PUL)/PHBV filaments were prepared with ketoprofen for scaffold preparation. The research aimed evaluate the influence of pullulan in the filament properties, such as thermal, morphological, and biological behavior. Hansen parameters demonstrated the difference in the miscibility of the polymers and drug in the blend.

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Chromosome aberrations and autoimmunity: Immune-mediated diseases associated with 18p deletion and other chromosomal aberrations.

Autoimmun Rev

January 2025

Division of Rheumatology, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Fleury Medicine and Health, Fleury Group, São Paulo, SP, Brazil. Electronic address:

Recent advances in genomic methodologies have significantly enhanced our understanding of immune-mediated rheumatic diseases. Specific structural variants (SVs), such as substantial DNA deletions or insertions, including chromosomal aberrations, have been implicated in diseases of immune dysregulation. Regrettably, SVs are frequently overlooked in next-generation sequencing (NGS) targeted-gene panels, whole exome sequencing (WES) and whole genome sequencing (WGS).

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Isospora tiedetopetei n. sp. (Chromista: Apicomplexa: Eimeriidae) from black-goggled tanagers Trichothraupis melanops (Vieillot, 1818) (Passeriformes: Thraupidae: Tachyphoninae) in South America.

Parasitol Int

January 2025

Departamento de Biologia Animal, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro, BR-465 km 7, 23897-000 Seropédica, Rio de Janeiro, Brazil.

Black-goggled tanagers Trichothraupis melanops (Vieillot, 1818) are passerine birds commonly observed in the Brazilian Atlantic Forest, Argentina and Paraguay. Tanagers are among the passerines with the highest prevalence and density of coccidian parasites, mainly due to their frugivorous feeding habits that favor fecal-oral transmission. In this context, the current study identifies a new species of Isospora Schneider, 1881 parasitizing black-goggled tanagers captured in the Itatiaia National Park, a protected area with a high degree of vulnerability in Southeastern Brazil.

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Bacterial nanocellulose (BNC) has attracted considerable attention in the field of biomedical engineering due to its potential for use in bone regeneration applications. The present study investigates the in vitro and in vivo efficacy of bacterial nanocellulose (BNC) combined with calcium and cerium ions (BNC-Ce:CaP) in bone regeneration applications. XRD analysis confirmed the presence of monetite and hydroxyapatite phases in BNC-CaP, while BNC-Ce:CaP revealed an additional brushite phase.

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Purpose Of This Research: To study the association between ICBs and LIDs and to assess the predictors of ICBs in this sample.

Methods: We intentionally evaluated 90 Brazilian PD patients younger than 60 in one evaluation that included the application of Questionnaire for Impulsive Compulsive Disorders - Current Short (QUIP-CS), Barratt Impulsive Scale-11 (BIS-11), Beck Depression Inventory-II (BDI-II), Unified Parkinson's Disease Rating Scale parts III and IV, Unified Dyskinesia Rating Scale (UDysRS), and a cognitive assessment.

Results: ICB group had a longer PD duration (8.

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Impact of Copper(II) and Silver(I) Complexes Containing 1,10-Phenanthroline-5,6-dione on Cellular and Virulence Aspects of Scedosporium apiospermum.

Curr Top Med Chem

January 2025

Laboratório de Estudos Avançados de Microrganismos Emergentes e Resistentes (LEAMER), Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.

Background: Scedosporium apiospermum is a multidrug-resistant filamentous fungus that causes localized and disseminated diseases. Our group has previously described that metalbased complexes containing copper(II) or silver(I) ions complexed with 1,10-phenanthroline-5,6- dione (phendione) inhibited the viability of S. apiospermum conidial cells.

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With praziquantel being the sole available drug for schistosomiasis, identifying novel anthelmintic agents is imperative. A chemical investigation of the fruiting body of the bioluminescent mushroom Berk. resulted in the isolation of new conjugated long-chain fatty acids (8,10,12,13)-12,13-dihydroxy-7-oxo-octadeca-8,10-dienoic acid () and (7,8,9,11)-7,8-dihydroxy-13-oxo-octadeca-9,11-dienoic acid () and three previously described compounds, (7,8,9)-7,8-dihydroxyoctadec-9-enoic acid (), (2)-dec-2-ene-1,10-dioic acid (), and a ketolactone marasmeno-1,15-dione ().

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Objectives: To evaluate the color change and trans-amelodentinal cytotoxicity of a 22% carbamide peroxide (CP) bleaching gel containing different concentration of manganese oxide (MnO).

Material And Methods: Enamel/dentin discs adapted to artificial pulp chambers were distributed according to treatments: CN-No treatment; CP22%-22%CP; CP22 + 2MnO-22%CP + 2 mg/mLMnO; CP22% + 6MnO-22%CP + 6 mg/mLMnO; CP22% + 10MnO-22%CP + 10 mg/mLMnO applied for 2 h for 15 days. Color change-CC (ΔE and ΔWI) (n = 8) was determined at 5, 10, and 15-day periods (ANOVA/Sidak).

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Objective: This retrospective study aimed to evaluate morphometric changes in mandibular condyles of patients with skeletal Class III malocclusion following two-jaw orthognathic surgery planned using virtual surgical planning (VSP) and analysed with automated three-dimensional (3D) image analysis based on deep-learning techniques.

Materials And Methods: Pre-operative (T1) and 12-18 months post-operative (T2) Cone-Beam Computed Tomography (CBCT) scans of 17 patients (mean age: 24.8 ± 3.

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Thermodynamic Stability in Transition Metal-Hydrogen Dications: Potential Energy Curves, Spectroscopic Parameters, and Bonding for VH.

J Comput Chem

January 2025

Universidade de São Paulo, Instituto de Química, Departamento de Química Fundamental, São Paulo, Brazil.

Seventeen electronic states of the dication VH were characterized by the SA-CASSCF/icMRCI methodology using very extended basis sets; 11 were described for the first time. Potential energy curves were constructed and the associated spectroscopic parameters evaluated. Triplet and quintet states correlating with the V + H channel are thermodynamic stable.

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Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.

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International Research Initiative on Genomics-guided Sugarcane Breeding.

Mol Plant

January 2025

National Engineering Research Center for Sugarcane, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China. Electronic address:

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Background: Limited data is available to evaluate the burden of device associated healthcare infections (HAI) [central line associated bloodstream infection (CLABSI), catheter associated urinary tract infection (CAUTI), and ventilator associated pneumonia (VAP)] in low and-middle-income countries. Our aim is to investigate the population attributable mortality fraction and the absolute mortality difference of HAI in a broad population of critically ill patients from Brazil.

Methods: Multicenter cohort study from September 2019 to December 2023 with prospective individual patient data collection.

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This study explores the question whether Artificial Intelligence (AI) can outperform human experts in animal pain recognition using sheep as a case study. It uses a dataset of N = 48 sheep undergoing surgery with video recordings taken before (no pain) and after (pain) surgery. Four veterinary experts used two types of pain scoring scales: the sheep facial expression scale (SFPES) and the Unesp-Botucatu composite behavioral scale (USAPS), which is the 'golden standard' in sheep pain assessment.

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