Publications by authors named "Pereira K"

Introduction: Microbial contamination remains a vital challenge across the food production chain, particularly due to mycotoxins-secondary metabolites produced by several genera of fungi such as , and . These toxins, including aflatoxins, fumonisins, ochratoxins, and trichothecenes (nivalenol, deoxynivalenol, T2, HT-2). These contaminants pose severe risks to human and animal health, with their potential to produce a variety of different toxic effects.

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Cannabidiol (CBD), a non-psychotropic compound derived from Cannabis sativa, is known for its potential therapeutic effects on central nervous system (CNS) disorders. This study investigates the effects of chronic CBD administration on depressive and cognitive alterations induced by social isolation in male C57BL/6 mice. The experimental design involved adult mice subjected to either group housing or 12 weeks of social isolation.

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Neonatal puppies and kittens have physiological and anatomical characteristics that differ from those of adult animals, which impacts the interpretation of physical examination and complementary tests. The veterinarian must be familiar with the clinical, laboratory, and imaging aspects observed in neonates. It is necessary to thoroughly evaluate the litter and the mother to notice the most subtle signs of illness and advise the owner to constantly monitor the newborns, quickly sending them to specialized care.

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Purpose: Reconstruction of bone defects prior to implant installation is a challenge, especially when the patient uses bisphosphonates. Given this difficulty, many studies investigate biomaterials that can improve the bone regeneration process. In this context, this study aimed to investigate the effect of platelet-rich fibrin (PRF) and Bio-Oss (BO) on bone regeneration of rats submitted to critical-sized calvaria defects and treated with ZA.

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Background: Squamous cell carcinoma (SCC) is the most common histological type in the oropharynx with high incidence and mortality. The Pi3K-AKT signaling pathway is important for understanding prognostic factors such as metastasis, which is involved in the aetiopathogenesis of cancer and is associated with angiogenesis, progression, and cell survival. The aim of this study was to evaluate the correlation of the Pi3K/AKT pathway with prognostic factors associated with oropharyngeal SCC, including overall survival.

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Article Synopsis
  • The study evaluated the effectiveness and safety of direct-acting antivirals (DAAs) for hepatitis C, focusing on sustained virologic response (SVR) and serious adverse events among patients in Ceará, Brazil.
  • A total of 1075 patients were analyzed, with a high overall SVR rate of 96.4%; however, those with cirrhosis showed slightly lower SVR rates compared to patients with less severe fibrosis.
  • While DAAs were generally safe, a small percentage (3.5%) of patients experienced serious adverse events, and some decompensated cirrhosis patients faced mortality during treatment.
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Introduction: The long-term efficacy of renal denervation (RDN) has not been extensively documented.

Aim: To describe the long-term follow-up of patients after RDN.

Methods: We evaluated patients with resistant hypertension (RH) who underwent RDN with irrigated catheter from 2012 to 2014 at a single centre.

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Background: We assessed the impact of point-of-care (PoC) test-and-treat at birth on clinical outcomes and viral suppression among HIV-positive infants in Mozambique and Tanzania.

Methods: This cluster-randomized trial allocated health facilities to intervention, providing PoC-testing and antiretroviral treatment (ART) at birth and week 4-8, or control, starting these at week 4-8. The primary outcome was proportions of clinical events (mortality, morbidity, retention, virological failure, toxicity) among HIV-positive infants at month-18.

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Background: Deep vein thrombosis (DVT) is a common medical condition that is associated with clinically significant sequelae, including postthrombotic syndrome (PTS). Anticoagulation alone remains the guideline-recommended treatment for many patients with iliofemoral DVT. Recent technological advances have led to an increase in the use of mechanical thrombectomy for DVT, but mechanical thrombectomy-based procedures have not yet been compared with standard-of-care anticoagulation therapy in randomized studies.

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Periodontal bone loss is potentiated by diabetes. Despite the beneficial anti-inflammatory and antiresorptive effects of Atorvastatin (ATV) on periodontitis, it has been reported to increase the risk of diabetes, which may modify the course of periodontal disease. Therefore, this study aimed to evaluate the effect of ATV on alveolar bone in rats with periodontitis and diabetes.

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  • A study called PEERLESS compared two catheter methods, large-bore mechanical thrombectomy (LBMT) and catheter-directed thrombolysis (CDT), for treating intermediate-risk pulmonary embolism (PE) in 550 patients, focusing on various health outcomes.
  • The results showed that LBMT led to fewer complications and less need for intensive care compared to CDT, including lower rates of clinical deterioration and ICU admissions.
  • Although LBMT had better short-term outcomes, there were no significant differences in mortality or major bleeding between the two treatment methods after 30 days.
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  • The study aims to analyze where households in Brazil obtain food and beverages, focusing on urban versus rural locations and the level of food processing.
  • Data from 49,489 households collected through the Household Budget Survey revealed that over half of the households purchase food from supermarkets, with notable differences in food acquisition patterns between urban and rural areas.
  • The research highlights how community food environments influence food consumption habits, particularly in relation to ultra-processed foods, varying significantly between urban and rural settings.
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Mead is an alcoholic beverage obtained by fermenting a dilute solution of honey with yeasts. The aim of this study was to develop and evaluate a probiotic mead from the co-fermentation of water kefir and . According to the results, the combination of 10 g/L of water kefir grains and 0.

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Context.—: Trastuzumab deruxtecan (T-DXd), a human epidermal growth factor receptor 2 (HER2)-targeted therapy, has demonstrated durable anticancer activity in patients with advanced, metastatic HER2 (also known as ERBB2)-mutant (HER2m) non-small cell lung cancer (NSCLC) who have limited treatment options and poor prognosis.

Objective.

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Background: Previous graduate students and postdoctoral associates from the University of Florida Health Cancer Center, in partnership with the University of Florida Student Science Training Program, implemented a cooperative learning curriculum, providing high school students with a broad overview of cancer topics over six weeks over the summer. To address discussions necessitated by the COVID-19 pandemic on student autonomy, we report lessons learned and outcomes of a cancer biology and therapeutic curriculum modified for a collaborative learning environment.

Methods: This pre-post longitudinal observational study conducted in 2023 on a cancer biology and therapeutics course evaluated students' knowledge retention and general awareness and opinions in cancer research.

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Background: Along bacteria, yeasts are common in forages and forage fermentations as spoilage microbes or as additives, yet few studies exist with species-level data on these fungi's occurrence in feedstuff. Active dry yeast and other yeast-based products are also common feed additives in animal husbandry. Here, we aimed to characterize both fermented and non-fermented milking cow feedstuff samples from Hungary to assess their microbial diversity in the first such study from Central Europe.

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  • Pyriproxyfen is a pesticide used in Brazil to combat Aedes aegypti mosquitoes, which carry diseases like Zika and dengue, but it closely resembles retinoic acid, a crucial compound for fetal brain development.
  • A study was conducted on rat pups to determine the effects of prenatal exposure to pyriproxyfen compared to a control group given vitamin A and a negative control group.
  • Results showed that while both pyriproxyfen and excess vitamin A affected brain structure and development, the specific outcomes differed, with pyriproxyfen causing some delays in reflex responses but not as severely as vitamin A did.
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The objective of the present study was to evaluate the carbon fiber obtained from textile PAN fiber, in its different forms, as a potential scaffolds synthetic bone. Thirty-four adult rats were used (Rattus norvegicus, albinus variation), two critical sized bone defects were made that were 5 mm in diameter. Twenty-four animals were randomly divided into four groups: control (C)-bone defect + blood clot, non-activated carbon fiber felt (NACFF)-bone defect + NACFF, activated carbon fiber felt (ACFF)-bone defect + ACFF, and silver activated carbon fiber felt (Ag-ACFF)-bone defect + Ag-ACFF, and was observed by 15 and 60 days for histomorphometric, three-dimensional computerized microtomography (microCT) and mineral apposition analysis.

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Traumatic brain injury leads to glutamate release, which overstimulates N-methyl-D-aspartate (NMDA) receptors, leading to neurotoxicity and cytotoxic edema. NMDA receptor antagonists may offer neuroprotection by blocking this pathway. The objective of this systematic review is to assess the efficacy of NMDA receptor antagonists for traumatic brain injury-induced brain edema in rodent models.

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Background: Anticoagulation (AC) is the guideline-recommended treatment for intermediate-risk pulmonary embolism (PE); however, it remains unclear whether mechanical thrombectomy provides benefit over AC alone. The PEERLESS II study aims to evaluate outcomes in intermediate-risk PE patients randomized to treatment with large-bore mechanical thrombectomy and AC vs AC alone.

Methods: PEERLESS II is an international randomized controlled trial enrolling up to 1200 patients with intermediate-risk PE and additional clinical risk factors from up to 100 sites.

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Introduction: Ultrasonic vibration for metallic post removal seems to be a unanimous choice between endodontists and general practitioners for providing the best results and having the highest safety. This study compared the time required by ultrasonic vibration for removing metallic post (MP) when 1 or 2 ultrasonics devices are used.

Materials And Methods: One hundred and fifteen teeth with MPs from 105 patients, indicated for nonsurgical endodontic retreatment were divided into 2 groups according to the number of ultrasonic devices used (G1-1 device) and (G2-2 devices).

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Non-secretory multiple myeloma (NSMM) is a rare cancer of plasma cells characterized by the absence of detectable monoclonal M protein in the blood or urine. A 57-year-old woman presented with mandibular pain but without intraoral swelling. Imaging studies revealed multiple osteolytic lesions in her mandible and pronounced root resorption of the left mandibular second molar.

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