6,183 results match your criteria: "State University of Campinas⁻UNICAMP[Affiliation]"

Hepatocyte nuclear factor 4-α is necessary for high fat diet-induced pancreatic β-cell mass expansion and metabolic compensations.

Front Endocrinol (Lausanne)

January 2025

Islet Biology and Metabolism Lab - IBM Lab, Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brazil.

Aims: This study investigates the role of Hepatocyte Nuclear Factor 4α (HNF4α) in the adaptation of pancreatic β-cells to an HFD-induced obesogenic environment, focusing on β cell mass expansion and metabolic adaptations.

Main Methods: We utilized an HNF4α knockout (KO) mouse model, with CRE-recombinase enzyme activation confirmed through tamoxifen administration. KO and Control (CTL) mice were fed an HFD for 20 weeks.

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Wolbachia is an intracellular endosymbiont bacterium found in nematodes and arthopods. Regarding mites, the Wolbachia supergroup U has been described based on strains found in the genus Spinturnix. In this study, ten specimens of Periglischrus iheringi (Mesostigmata: Spinturnicidae), collected from Artibeus obscurus (Chiroptera: Phyllostomidae) in Santa Catarina State, were found to be infected with Wolbachia.

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Body composition abnormalities are prognostic markers in several types of cancer, including colorectal cancer (CRC). Using our data distribution on body composition assessments and classifications could improve clinical evaluations and support population-specific opportune interventions. This study aimed to evaluate the distribution of body composition from computed tomography and assess the associations with overall survival among patients with CRC.

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Background: Urinary retention in obstructed male cats leads to changes in blood and urine compounds, which, combined with the time of obstruction, are linked to the worsening of the animal's clinical status.

Aim: This study aimed to describe the primary laboratory changes in male cats with urethral obstruction (UO).

Methods: Medical records of 386 male cats diagnosed with UO and treated at the Veterinary Teaching Hospital of the Faculty of Veterinary Medicine and Zootechnics (FMVZ), UNESP-Botucatu, between 2010 and 2020 were reviewed.

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Natural indigo toxicity for aquatic and terrestrial organisms.

Ecotoxicol Environ Saf

December 2024

Faculdade de Tecnologia, Universidade Estadual de Campinas, UNICAMP, Limeira, SP, Brazil.

Indigo is a widely used colorant available from natural and synthetic origin. It is practically insoluble in water. Indigo can reach aquatic sediments through wastewater discharges from dyeing processes, terrestrial compartments from the treatment sludges used as biosolids and dyed textiles disposed in landfills.

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This study investigated the effect of platelet-rich fibrin (PRF) on bone healing around implants placed in elevated sinus cavities. Forty New Zealand albino rabbits were divided into eight groups, based on the time of sacrifice (14 or 40 days) and the material used: blood clot (control), hydroxyapatite (HA) from bovine bone, HA combined with PRF, and PRF alone. Each group consisted of five animals (n = 5).

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This study aimed to identify whether there is an ideal concentration for applying ozonized oil (OZ) in the post-exodontic alveoli of senescent rats treated with zoledronate (ZOL). Thirty-five female rats, aged 18 months, were divided into five groups: ZOL; ZOL+OZ500; ZOL+OZ600; ZOL+OZ700; and SAL. The groups treated with ZOL, and other concentrations of OZ received applications at a dose of 100 μg/kg, while the SAL group received saline.

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Study of the synergistic properties of copaiba oil co-electrospun with poly(L-co-D,L lactic acid) and natural rubber latex for application in bioactive wound dressings.

Int J Biol Macromol

December 2024

Post-Graduation Program in Materials Sciences (PPGCM), Federal University of São Carlos (UFSCar), 18052-780, Brazil; Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), 18030-070, Brazil; Mechanical Engineering Faculty (FEM), State University of Campinas (UNICAMP), 13083-970, Brazil; Post-Graduation Program of Biomaterials and Regenerative Medicine (PPGBMR), Surgery Department, (PUC-SP), 18030-070, Brazil.

Wound healing is a complex process involving a sequence of factors that can be disrupted, negatively impacting the quality of life for patients and overburdening healthcare systems. Advanced dressings obtained by electrospinning are highlighted by the optimization of this process, allowing air exchange and protection against microorganisms. Aiming to develop bioactive dressings, this study investigated the physicochemical, mechanical, microbiological, and in vitro biological properties of membranes containing 25 %, 50 %, 75 %, and 90 % copaiba oil (CO) co-electrospun with poly(L-co-D,L-lactic acid) (PLDLA) and natural rubber latex (NR).

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Fermi Polaron in Atom-Ion Hybrid Systems.

Phys Rev Lett

December 2024

Dipartimento di Fisica, Università di Trieste, Strada Costiera 11, I-34151 Trieste, Italy.

Atom-ion hybrid systems are promising platforms for the quantum simulation of polaron physics in certain quantum materials. Here, we investigate the ionic Fermi polaron, a charged impurity in a polarized Fermi bath, at zero temperature using quantum Monte Carlo techniques. We compute the energy spectrum, residue, effective mass, and structural properties.

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Brycon amazonicus, a fish species widely distributed along freshwater rivers in Latin America, is important in maintaining ecological balance. Although some morphological/physiological aspects of B. amazonicus have been reported, the cardiac histomorphology of this species remains poorly understood.

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Introduction: This study evaluated the dentoskeletal effects of miniscrew-anchored maxillary protraction, which included a mandibular anchorage bar and a night facemask in adolescents.

Methods: A total of 20 growing patients with Class III malocclusion and maxillary deficiency were treated with a hybrid hyrax expander with 2 miniscrews in the maxilla and a mandibular anchor bar supported in 2 miniscrews in the anterior region of the mandible. Class III elastics were used from the maxillary first molars to the mandibular anchorage bar, joining the mandibular miniscrews installed between permanent incisors and canines.

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Introduction: The present study aimed to identify the physical demands of Brazilian Air Force (BAF) critical Combat Tasks (CTs) and investigate the occurrence of differences in their difficulty perceived ratings, considering aspects such as sex, military experience, and academic degree of the evaluators.

Methods: The Subject Matter Expert (SME) cohort was assembled based on the BAF's Physical Training Specialists (n = 13, military, at least 2 years of experience). Based on the BAF's previous studies, a questionnaire defining and rating the physical demands of 12 BAF critical CTs was developed.

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Background: White coat effect (WCE) is a phenomenon linked to increased cardiovascular risk, where office blood pressure readings exceed home or ambulatory measurements. Excess weight and elevated blood pressure or glucose are associated with WCE in type 2 diabetes (T2D). This study compared dapagliflozin and glibenclamide on WCE in T2D patients under equivalent blood pressure and glucose control.

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Interplay between miRNA expression and glucose metabolism in oral squamous cell carcinoma.

Arch Oral Biol

December 2024

Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil; Department of Pathology, School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil. Electronic address:

Objective: Given the urgent need for improved diagnostic and therapeutic strategies in oral squamous cell carcinoma (OSCC), this review aims to explore the intricate interplay between OSCC and alterations in glucose metabolism, with a particular focus on the pivotal role of microRNAs (miRNAs) in this context.

Material And Methods: Data were extracted from a vast literature survey by using PubMed, Embase, and Web of Science search engines with relevant keywords.

Results: In OSCC, miRNAs exert regulatory control over the expression of genes involved in glucose metabolism pathways.

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Background: Elucidating the intricacies of the sugarcane genome is essential for breeding superior cultivars. This economically important crop originates from hybridizations of highly polyploid Saccharum species. However, the large size (10 Gb), high degree of polyploidy, and aneuploidy of the sugarcane genome pose significant challenges to complete genome sequencing, assembly, and annotation.

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Aims: The term ovarian carcinoma (OC) refers to a heterogeneous collection of five distinct diseases known as histotypes. While histotype-specific treatment is still a clinical challenge in OC, well-characterized models are required for testing new therapeutic strategies. We employed OncoTherad® (MRB-CFI-1), an interferon (IFN-γ)-stimulating nano-immunotherapy mediated by Toll-like receptors (TLR) 2/4, in association or not with Erythropoietin (EPO) in a chemically-induced ovarian cancer model.

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Objective: Evaluate the sociodemographic, clinical, and lifestyle characteristics at head and neck squamous cell carcinoma (HNSCC) diagnosis and their impact on overall survival (OS) across different anatomical sites.

Materials And Methods: A retrospective cohort study (2011-2021) at Instituto do Câncer do Estado de São Paulo, involving 3052 HNSCC patients. Survival analyses utilized the Kaplan-Meier method and Cox proportional hazard ratios with 95% confidence intervals, incorporating significant variables from univariate analysis.

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Purpose: To evaluate the impact of glazing denture base resins (heat-polymerized and 3D-printed) on surface, mechanical, and microbiological properties.

Materials And Methods: Discs (10 × 3 mm) and bars (64 × 10 × 3.3 ± 0.

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This study evaluated the surface roughness, color change, and antibacterial effect of a ceramic glaze enhanced with TiO nanotubes (n-TiO). n-TiO (0, 2, 2.5, and 5 wt%) was added to a ceramic glaze powder, applied to the surface of forty feldspathic ceramic specimens, and sintered.

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Specialized or secondary metabolites are small molecules of biological origin, often showing potent biological activities with applications in agriculture, engineering and medicine. Usually, the biosynthesis of these natural products is governed by sets of co-regulated and physically clustered genes known as biosynthetic gene clusters (BGCs). To share information about BGCs in a standardized and machine-readable way, the Minimum Information about a Biosynthetic Gene cluster (MIBiG) data standard and repository was initiated in 2015.

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DC. (Geraniaceae) is a widely recognized medicinal plant whose natural extract exhibits therapeutic effects through a multi-target approach. Existing literature encompasses investigations of antimicrobial and cellular effects, including clinical trials.

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High hydrostatic pressure (HHP) is an emerging technology that can be applied to improve the functional properties of emulsified meat products. The aim of this study was to evaluate the effect of HHP (100 and 200 MPa) on low-sodium mortadella produced with high content of mechanically deboned poultry meat (MDPM). Seven treatments were produced: FC (2.

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Background: Despite recent advancements, women still encounter significant challenges in various fields, including dentistry. However, the increasing interest in female participation in science acknowledges its fundamental role in the advancement of knowledge. This study aims to assess indicators of women's involvement in Brazilian research in the areas of Oral Pathology and Oral Medicine.

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Neotropical palms: from their conservation to economic potential.

Front Plant Sci

November 2024

Genetics and Genomics Conservation Laboratory - UNICAMP/USP, Piracicaba, São Paulo, Brazil.

Article Synopsis
  • Palms, belonging to the Arecaceae family, are globally important plants but are facing extinction due to over-exploitation for their economic value.
  • This article discusses the biology, genetics, and socioeconomic impact of various palm species, along with recent research advancements.
  • It emphasizes the need for urgent conservation efforts since palms are crucial for biodiversity and essential ecosystem services.
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After revising the literature and consulting the pertinent virtual databases, we here list all Brazilian marine bivalves currently considered as valid and include data on their geographical and bathymetrical distribution. The list contains 516 indigenous and nine introduced species. Among the former, 461 species are autobranchs and 64 are protobranchs.

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