8,243 results match your criteria: "University of Campinas-Unicamp[Affiliation]"

Background/objectives: Crohn's disease (CD) is a chronic inflammatory disorder that significantly affects patients' quality of life; conventional treatments often provide limited relief.

Methods: This systematic review and meta-analysis explored the potential of regenerative therapies, particularly platelet-rich plasma (PRP), as an adjunctive treatment for CD. The study protocol was registered with PROSPERO (CRD42024576683), and a comprehensive search was conducted across major databases, such as PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials.

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Theranostic Nuclear Medicine is based on the idea of combining the same molecule (or drug) with different radioisotopes for both diagnosis and treatment, a concept that emerged in the early 1940s with the use of radioactive iodine for thyroid diseases. Theranostic Nuclear Medicine has since expanded to diseases of higher incidence, such as prostate cancer, with several imaging methods used to assess the extent of the disease and the corresponding radiopharmaceuticals used for treatment. For example, by detecting osteoblastic metastases by bone scintigraphy, corresponding radiopharmaceuticals with therapeutic properties can be administered to eliminate or reduce pain associated with metastases and/or determine overall survival gain.

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Spinal cord injury results in significant motor and sensory loss. In the experimental ventral root avulsion (VRA) model, the ventral (motor) roots are disconnected from the spinal cord surface, disrupting contact between spinal motoneurons and muscle fibers. Axotomized motoneurons typically degenerate within two to three weeks after avulsion, the situation being exacerbated by an increased glial response and chronic inflammation.

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The aim of this study was to evaluate the mechanical effect of ovariectomy, diet, and tooth extraction on the bone structure of the mandible of Wistar rats. Mandibles from 40 female Wistar rats were used, divided into rats with ovariectomy surgery or surgical simulation. Half of the rats had the right upper incisor extracted and a soft diet was introduced for half of the animals for 30 days.

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GH10 xylanases and GH62 Arabinofuranosidases play key roles in the breakdown of arabinoxylans and are important tools in various industrial and biotechnological processes, such as renewable biofuel production, the paper industry, and the production of short-chain xylooligosaccharides (XOS) from plant biomass. However, the use of these enzymes in industrial settings is often limited due to their relatively low thermostability and reduced catalytic efficiency. To overcome these limitations, strategies based on enzymatic chimera construction and the use of metal ions and other cofactors have been proposed to produce new recombinant enzymes with improved catalytic activity and thermostability.

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Background And Aims: The gold standard method for measuring resting energy expenditure (REE) is indirect calorimetry (IC) using an expensive device that requires specialized training. To overcome the limitations of IC, REE prediction formulas are used in patients with chronic kidney disease (CKD). However, it is still controversial which of these formulas has greater accuracy compared to IC.

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Application of Xylo-Oligosaccharide-Rich Gel Emulsion as a Fat Replacer in Sausages.

Foods

November 2024

Laboratory of Bioprocess and Metabolic Engineering, School of Food Engineering, University of Campinas (UNICAMP), Campinas 13083-862, SP, Brazil.

Article Synopsis
  • Xylo-oligosaccharides (XOS) derived from plant material were used to create a gel that can replace pork fat in meat products, leading to healthier options.
  • The study found that substituting pork fat with this gel reduced total fat by about 30% and improved the lipid profile, making it healthier.
  • Analysis showed that meat products with XOS had a more compact structure and maintained similar properties to traditional products, making XOS a practical and beneficial alternative for reducing fat content in meats while adding prebiotic benefits.
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β-carotene and resveratrol loaded glycerol monostearate-based oleogels: Physicochemical characterization at low gelation concentrations.

Food Res Int

December 2024

International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, 4715-330 Braga, Portugal. Electronic address:

Oleogels are semi-solid systems that can function both as replacers of trans and saturated fats and/or as carriers of lipophilic bioactive compounds. However, bioactive compounds can affect the structure of the oleogel matrix and this effect depends on the properties of such compounds. Therefore, the aim of this study was to develop oleogels loaded with β-carotene (BC) or resveratrol (R), with low concentrations of glycerol monostearate (GMS, 2-5 wt%) and sunflower oil as organic solvent.

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Growing interest in plant-based materials for stabilizing food emulsions is driven by the clean-label trend. Conjugating plant proteins with phenolic compounds from plant extracts enhances their techno-functionality and allows their use as stabilizers of emulsion-based systems. This study aimed to (i) combine heat treatment (HT) and conjugation with guarana extract (GE) to improve the emulsifying ability of pea protein isolate (PPI); (ii) encapsulate vitamin D3 (VD) in PPI/GE-stabilized emulsions; (iii) evaluate the potential of these formulations in improving VD retention during storage and in vitro bioaccessibility.

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Chronic non-communicable diseases (NCD), such as cardiovascular diseases, diabetes, and cancer, dominate global mortality, besides compromising the quality of life. Unhealthy habits like sedentary lifestyles and poor diets escalate NCD risks. Conversely, the consumption of phenolic compounds and carotenoids has shown promise in reducing NCD risks.

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Coordination Compounds as Antivirals against Neglected Tropical Diseases.

ChemMedChem

November 2024

Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlândia-UFU, João Naves de Avila Avenue, 2121, 38408-100, Uberlândia, Minas Gerais, Brazil.

Neglected tropical viral diseases are a burden to social and economic welfare being responsible for higher pathogen-related mortality rates and chronic debilitating patient conditions. Climatic changes have widened up the infectibility ratio of such diseases, with autochthonous transmission in formerly temperate-to-cold environments. The slow-paced development of potential vaccines followed by the inexistence of antiviral drugs for such diseases considerably worsens the situation.

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Preeclampsia, a pregnancy-specific syndrome, poses substantial risks to maternal and neonatal health, particularly in cases with severe features. Our study focuses on evaluating the impact of low molecular weight metabolites on the intricate mechanisms and pathways involved in the pathophysiology of preeclampsia when severe features are present. We aim to pinpoint the distinct metabolomic profile in maternal plasma during pregnancies affected by hypertensive disorders and to correlate the metabolite levels with the clinical characteristics of the study cohort.

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This narrative review explores texture analysis as a valuable technique in dentomaxillofacial diagnosis, providing an advanced method for quantification and characterization of different image modalities. The traditional imaging techniques rely primarily on visual assessment, which may overlook subtle variations in tissue structure. In contrast, texture analysis uses sophisticated algorithms to extract quantitative information from imaging data, thus offering deeper insights into the spatial distribution and relationships of pixel intensities.

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can cause invasive pulmonary aspergillosis (IPA). Fungicidal azoles and fungistatic caspofungin (CAS) are the first- and second-line therapies, respectively, used to treat IPA. Treatment of with CAS or micafungin induces the production of the oxylipin 5,8-diHODE by the fungal oxygenase PpoA.

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Impact of Sleeve Gastrectomy on Body Weight and Food Intake Regulation in Diet-Induced Obese Mice.

Curr Issues Mol Biol

November 2024

Obesity and Comorbidities Research Center (OCRC), Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas 13083864, SP, Brazil.

The epidemic of obesity has increased worldwide and is associated with comorbidities such as diabetes and cardiovascular disease. In this context, strategies that modulate body weight and improve glycemic metabolism have increased, and bariatric surgeries such as Sleeve Gastrectomy (SG) have been highlighted in obesity treatment. However, the mechanism by which SG reduces body weight and improves glycemic control remains unknown.

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Cystic fibrosis (CF) affects not just patients but also their families, highlighting the need for a comprehensive care approach. This descriptive qualitative study aimed to explore the informational needs of family caregivers of children with CF, focusing on how these needs can be addressed within a Patient and Family-Centered Care (PFCC) framework. The study was conducted at a public hospital in Brazil.

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Study Design: systematic review.

Objective: To evaluate risk factors associated with failure of non-operative management of isolated unilateral facet fractures of the subaxial cervical spine in neurologically intact patients.

Methods: A systematic review of the PubMed, Embase, LILACS, and Cochrane Library databases was conducted in order to determine risk factors associated with failure of non-operative management in isolated unilateral facet fractures of the subaxial cervical spine without facet and/or vertebral displacement, in neurologically intact patients.

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Article Synopsis
  • Macauba (Acrocomia aculeata) is a promising non-domesticated palm species with potential for oil production, comparable to the commercially used oil palm, driving interest in its genetic study for domestication efforts.
  • The study utilized various genotyping strategies to identify SNPs in 201 palms and performed GWAS to associate genetic traits with vegetative and oil production characteristics, despite lacking a reference genome.
  • Results indicated significant genetic variation among traits, with heritability values suggesting the presence of favorable genotypes for breeding programs; a total of 92 significant SNPs were identified in single-trait GWAS using de novo data.
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Dental-dedicated magnetic resonance imaging in the follow-up of lower third molar removal.

Oral Radiol

November 2024

Section for Oral Radiology and Endodontics, Department of Dentistry and Oral Health, Aarhus University, Vennelyst Boulevard 9, 8000, Århus, Denmark.

The objective is to present a dental-dedicated magnetic resonance imaging (ddMRI)-based follow-up of inferior third molar removal over 12 months. A 30-year-old female presented with recurrent pain and bleeding from her lower right third molar. With adding diagnostic information from a panoramic image, the tooth was referred for removal.

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Perinatal outcomes after selective third-trimester ultrasound screening for small-for-gestational age: prospective cohort study nested within DESiGN randomized controlled trial.

Ultrasound Obstet Gynecol

January 2025

Department of Women and Children's Health, School of Life Course and Population Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.

Article Synopsis
  • This study examines the effectiveness of third-trimester ultrasound in detecting small-for-gestational age (SGA) babies, highlighting concerns about low detection rates and risks associated with false results.
  • Researchers analyzed data from the DESiGN trial, focusing on stillbirth and neonatal morbidity outcomes among pregnancies classified as either false-negative, true-positive, false-positive, or true-negative for SGA.
  • Findings revealed that false-negative SGA results significantly increased the risk of stillbirth compared to true-positive diagnoses, while the implications of false-positive results were also evaluated, indicating potential risks in misclassification during antenatal screening.
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Schwann cells exposed to articaine display distinct toxic pathways compared to lidocaine.

Chem Biol Interact

November 2024

CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal. Electronic address:

Articaine (ATC) has emerged as one of the most popular local anesthetics (LA) in dental clinics, despite its relatively recent introduction to the market. As a member of the amino-amide class of LA, ATC possesses unique features, including a thiophene ring and an ester group, which allow for its use at higher clinical concentrations. However, reports have indicated a higher incidence of paresthesia associated with ATC, though the underlying cause of this effect remains unclear.

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Inhibition of Xanthomonas growth by bioactive volatiles from Pseudomonas sp. triggers remarkable changes in the phytopathogen transcriptome.

Microbiol Res

January 2025

Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, Brazil; Graduate Program in Genetics and Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas 13083-970, Brazil. Electronic address:

Volatile organic compounds (VOCs) produced by microorganisms may have a noteworthy role in the control of plant pathogens. Xanthomonas are a well-studied group of phytobacteria that cause diverse diseases in economically important crops worldwide. Key species that infect sugarcane are X.

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Continuous vaso-occlusive and inflammatory processes cause extensive end-organ damage in adults with sickle cell disease (SCD), and there is little evidence that longterm hydroxyurea therapy prevents this. In initial trials, P-selectin blockade with crizanlizumab reduced SCD vaso-occlusive crisis frequency, and interleukin (IL)-1β inhibition in SCD patients, using canakinumab, lowered inflammatory markers. We used murine SCD models to examine the effects of acute and chronic blockade of Pselectin and of IL-1β on vaso-occlusive events, their inflammatory profile and organ health.

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Classification of pediatric soft and bone sarcomas using DNA methylation-based profiling.

BMC Cancer

November 2024

Research Center, Boldrini Children's Hospital, Rua Marcia Mendes, 619, Cidade Universitaria, CEP 13083-884, Campinas, São Paulo, Brazil.

Pediatric sarcomas present heterogeneous morphology, genetics and clinical behavior posing a challenge for an accurate diagnosis. DNA methylation is an epigenetic modification that coordinates chromatin structure and regulates gene expression, determining cell type and function. DNA methylation-based tumor profiling classifier for sarcomas (known as sarcoma classifier) from the German Cancer Research Center (Deutsches Krebsforschungszentrum) was applied to 122 pediatric sarcomas referred to a reference pediatric oncology hospital.

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The resolvin D2 and omega-3 polyunsaturated fatty acid as a new possible therapeutic approach for inflammatory bowel diseases.

Sci Rep

November 2024

Inflammatory Bowel Disease Research Laboratory, Gastrocenter, Colorectal Surgery Unit, School of Medical Sciences, University of Campinas (Unicamp), Carlos Chagas Street, 420, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-878, Brazil.

Inflammatory bowel diseases (IBD) are idiopathic disorders characterized by chronic gastrointestinal inflammation. Given conventional therapies' adverse effects and clinical failures, novel approaches are being investigated. Recent studies have highlighted the role of specialized pro-resolving lipid mediators (SPMs) in the active resolution of chronic inflammation.

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