365 results match your criteria: "State University Julio de Mesquita Filho[Affiliation]"

Background: Cardiovascular diseases constitute one of the leading causes of morbidity and mortality worldwide. Herbal medicines represent viable alternatives to the synthetic drugs currently employed in the control of hypertension. This study aimed to isolate and identify the chemical markers of and to investigate the antihypertensive and anti-matrix metalloproteinase (MMP2) activities of an aqueous extract of the leaves.

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The study aimed to evaluate the potential protection against fractures of oral Q10 supplementation in the tibias of rats exposed to nicotine. Nicotine is known to negatively impact bone density and increase the risk of fractures, in addition to affecting other systems such as the gastrointestinal system, impairing its absorption capacity, negatively affecting bone health. To investigate this, eighty male rats were divided into four groups (n = 20) receiving either nicotine hemisulfate or saline solution (SS) for 28 days.

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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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Brown algae are vital structural elements and contributors to biodiversity in marine ecosystems. These organisms adapt to various environmental challenges by producing primary and secondary metabolites crucial for their survival, defense, and resilience. Besides their ecological role, these diverse metabolites have potential for biotechnological applications in industries including pharmaceuticals, cosmetics, and food.

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Dengue, a hyperendemic arbovirus thriving in tropical and sub-tropical climates globally, has seen a significant surge in Brazil over the past 5 years. Presently, the country faces an epidemic, posing a huge challenge to Public Health authorities due to the potentially lethal nature of severe infections. Based on Hahnemannian concepts and on the historically reported efficacy of homeopathy in fighting epidemics, this study aimed to provide supporting evidence for a homeopathic genus epidemicus approach to prevent severe forms of dengue.

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Article Synopsis
  • The text introduces a new species of weevil, Heilipus vividaensis, discovered in Brazil, and also provides an updated description of an existing species, H. draco.
  • Both species were found in association with specific fruiting plants in Brazil, highlighting their ecological connection.
  • The study includes detailed descriptions of their physical features, reproductive structures, distribution, and genetic information to aid in identification and understanding of these species.
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Background: Castration is a common practice in beef cattle production systems to manage breeding and enhance meat quality by promoting intramuscular fat (IMF) deposition, known as marbling. However, the molecular mechanisms that are influenced by castration in beef cattle are poorly understood. The aim of this study was to identify differentially expressed genes (DEGs) and metabolic pathways that regulate IMF deposition in crossbred cattle by RNA sequencing (RNA-Seq) of skeletal muscle tissue.

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Intermittent hemodialysis (IH) is an important therapy in the context of kidney dysfunction in dogs. However, its impact on pro-inflammatory cytokines is unclear. This study assessed IL-1β, IL-6, and TNF-α serum concentrations in dogs with chronic kidney disease (CKD) undergoing one session of IH without bypass (IH group,  = 4) and with bypass (IH + bypass group,  = 4).

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Molecular detection and characterization of Anaplasmataceae agents, Bartonella spp. and hemoplasmas in armadillos and anteaters from Brazil.

Acta Trop

December 2024

Vector-Borne Bioagents Laboratory (VBBL), Department of Pathology, Reproduction, and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Júlio de Mesquita Filho" (FCAV/UNESP), Jaboticabal Campus, Via de Acesso Prof. Paulo Donato Castellane, s/n, Rural Zone, Jaboticabal, SP, CEP: 14884-900, Brazil. Electronic address:

Article Synopsis
  • Armadillos and anteaters interact with various pathogens and parasites, making them potential hosts for zoonotic diseases, but research on these interactions is limited.
  • A study in Brazil analyzed 167 samples from different species of armadillos and anteaters to identify occurrences of pathogens like Ehrlichia, Anaplasma, Bartonella, and hemoplasmas.
  • Results showed low detection rates, with only one positive sample each for Anaplasma in six-banded armadillos and Ehrlichia in giant anteaters, indicating the need for further research on disease dynamics in these mammals.
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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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Estrogen deficiency is one of several contributing factors to catabolic changes in bone surrounding dental implants, impairing bone repair in defects requiring bone regeneration. Functionalizing bone substitutes is an alternative approach among various strategies to address this challenge. In this study, the aim was to evaluate the effect of functionalizing deproteinized bovine bone (Bio-Oss, BO) with genistein via sonication on peri-implant bone defects in ovariectomized rats.

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Life cycle of Amblyomma calcaratum (Ixodida: Ixodidae) under laboratory conditions.

Parasitol Res

November 2024

Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil.

The life-cycle of Amblyomma calcaratum was evaluated experimentally under laboratory conditions using birds (Serinus canaria, Gallus gallus) and rodents (Calomys callosus) as hosts for immatures and a rabbit (Oryctolagus cuniculus) as host for adults. Developmental periods of the non-parasitic stages were observed in an incubator at 27 °C and 90% RH. The passerine S.

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Escherichia coli is a zoonotic bacterium, and its resistance to antimicrobials has become an increasing problem in global health. This study aimed to determine the phenotypic and genotypic pooled prevalence of E. coli with antimicrobial resistance profiles in poultry through systematic review and meta-analysis.

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The objective was to investigate the physicochemical stability of stored cactus pear mucilage and assess the technological feasibility to produce polymeric films. Mucilage of cactus pear species (L.) Salm-Dyck MIU and (Haw.

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Article Synopsis
  • Visceral leishmaniasis (VL) diagnosis is critical, especially in untreated cases, with the gold standard being bone marrow aspirate, which is invasive and not always feasible, particularly when HIV is involved.
  • A study in Brazil examined 127 VL patients, with 37.8% also having HIV, comparing diagnostic tools like the rK39-ICT test, PCR, and IFAT against a reference standard of parasitological examination.
  • Results showed that while rK39-ICT was effective in HIV-negative patients, it significantly underperformed in HIV-positive patients compared to PCR, highlighting the need for improved diagnostic strategies that consider the presence of HIV.
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The main objective of the study was to assess the occurrence of non-aids-related comorbidities typical of aging in people living with HIV diagnosis 20 years ago or more and under treatment with antiretroviral drugs for a long time. The associations between the same age group in people living with HIV with reported ART use 20 + years and people living with HIV with reported ART use between two and five years in relation to the risk of comorbidities studied, there was a predominance of metabolic alterations in the 50-60 and 60 + age groups (p < 0.003).

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Antiviral Effect of Different Essential Oils on Avian Coronavirus.

Avian Dis

September 2024

Brazilian Agricultural Research Corporation, Embrapa Instrumentation, São Carlos 13561-206, Brazil.

Article Synopsis
  • Plant essential oils (EOs) show strong antimicrobial properties, but their antiviral effects against avian coronaviruses are not well studied, making them a good alternative when chemical treatments are not an option.
  • This study tested six different EOs against avian coronavirus (AvCov) at two different dilutions (0.1% and 1%) to see how effective they were at inhibiting virus replication.
  • At the 1% dilution, EOs from certain plants completely blocked AvCov replication, while at the lower dilution, effects were limited; further research is needed to understand how these EOs work and how they might be applied to fight other coronaviruses.
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Recurrence and resistance risk factors in low-risk gestational trophoblastic neoplasia.

Int J Gynecol Cancer

January 2025

New England Trophoblastic Disease Center, Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA.

Article Synopsis
  • Gestational trophoblastic neoplasia (GTN) is a group of curable pregnancy-related tumors, but 25% of patients may experience treatment-resistant or recurring cases after chemotherapy.
  • The review highlights various factors affecting the prognosis of low-risk GTN, such as FIGO risk score, patient age, tumor characteristics, and hCG levels, emphasizing the need for personalized treatment approaches.
  • It also identifies independent risk factors for resistance and recurrence, noting that previous studies have limitations like small sample sizes and lack of comprehensive analysis, which could impact the understanding of these issues.
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Article Synopsis
  • The silverleaf whitefly is a major agricultural pest affecting crop yields globally, with limited research on insecticide effectiveness since the introduction of Mediterranean species in Brazil.
  • The study assessed the susceptibility of three Mediterranean whitefly populations to 11 different insecticides and analyzed their bacterial endosymbionts.
  • Results indicated significant variation in insecticide tolerance among populations, particularly with imidacloprid and thiamethoxam, emphasizing the need for regular toxicity testing and integrated pest management to maintain insecticide effectiveness.
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Cyanoacrylate Adhesives for Cutaneous Wound Closure.

Animals (Basel)

September 2024

Clinical and Animal Surgery Laboratory, Faculty of Agricultural and Veterinary Sciences, São Paulo State University "Júlio de Mesquita Filho", Jaboticabal 14884-900, São Paulo, Brazil.

Article Synopsis
  • Cyanoacrylate-based adhesives are commonly used for wound closure, offering good cosmetic outcomes and minimal discomfort, but they may release harmful chemicals during biodegradation.
  • The study evaluated four types of cyanoacrylate adhesives and nylon stitches on skin incisions in 140 animals, finding that n-2-octyl-cyanoacrylate (G4) resulted in faster wound closure, while nylon stitches (G5) showed initially greater strength but decreased over time.
  • Overall, cyanoacrylate adhesives led to less inflammation and quicker healing compared to nylon sutures, with varying effects on cell response and collagen types among the groups studied.
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Purpose: To determine the prewarming effect on body temperature in the perioperative period of patients undergoing conventional abdominal surgery and the level of thermal comfort.

Design: A randomized controlled clinical trial.

Methods: A Brazilian oncology hospital located in São Paulo.

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The present study aimed to verify the effect of acute nitrate supplementation on oxidative, phosphocreatine, and glycolytic energy contribution (C, C, and C respectively) during a high-intensity intermittent exercise (HIIE). Fifteen physically active subjects were submitted to incremental running test on a treadmill and two random HIIE (10 × 1 min at maximal aerobic speed with 1 min of passive recovery) in the following conditions: sodium nitrate (SN) or Placebo (PL). Repeated measure ANOVA was used to compare C, and C within the 10 efforts.

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Bisphosphonates are widely used for the treatment of postmenopausal osteoporosis; however, they cause several long-term side effects, necessitating the investigation of local ways to improve osseointegration in compromised bone tissue. The purpose of this study was to evaluate peri-implant bone repair using implants functionalized with zoledronic acid alone (OVX ZOL group, n = 11), zoledronic acid + teriparatide (OVX ZOL + TERI group, n = 11), and zoledronic acid + ruterpy (OVX ZOL + TERPY group, n = 11) compared to the control group (OVX CONV, n = 11). Analyses included computer-assisted microtomography, qualitative histologic analysis, and real-time PCR analysis.

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How anatomical impairments found on CT affect perfusion percentage assessed by SPECT/CT scan?

Ann Nucl Med

December 2024

Medical School, São Paulo State University Julio de Mesquita Filho, Av. Prof. Mário Rubens Guimarães Montenegro, S/N, UNESP Campus de Botucatu, Botucatu, SP, CEP: 18618687, Brazil.

Aim: CT images can identify structural and opacity alterations of the lungs while nuclear medicine's lung perfusion studies show the homogeneity (or lack of) of blood perfusion on the organ. Therefore, the use of SPECT/CT in lung perfusion scintigraphies can help physicians to assess anatomical and functional alterations of the lungs and to differentiate between acute and chronic disease.

Objective: To develop a computer-aided methodology to quantify the total global perfusion of the lungs via SPECT/CT images and to compare these results with parenchymal alterations obtained in CT images.

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Maternal nutrition is one of the main environmental factors regulating gene expression during fetal development through epigenetic modifications. Some nutrients, such as the amino acid l-arginine, are added to maternal diets to modulate gene expression, improve the reproductive performance of females, and enhance conceptus development. This study investigated the hypothesis that supplementation of pregnant gilts with l-arginine regulates gene expression in conceptuses through epigenetic mechanisms.

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