The dissemination of antimicrobial resistance genes and the bacterium that harbor them have increasingly become a public concern, especially in low- and middle-income countries. The present study used whole-genome sequencing to analyze 10 KPC-2-producing isolates obtained from clinical specimens originated from Brazilian hospitals. The study documents a relevant "snapshot" of the presence of class 1 integrons in 90% of the strains presenting different gene cassettes ( and ), associated or not with transposons.
View Article and Find Full Text PDFThis study was conducted to evaluate the effects of sequential feeding technique in two genetic lines (GL; Line A [cross having a greater proportion of Pietrain] and Line B [cross having a lower proportion of Pietrain]) of growing-finishing pigs reared under daily cyclic high ambient temperature conditions. Seventy-eight castrated male pigs (22 ± 2.5 kg BW) were housed in a single group and were allocated to one of the three feeding programs: control (CON, 24 h control diet), high-fat/low-crude protein (HF/LP, 24 h high-fat/low-crude protein diet), and sequential feeding (SEQ, control diet from 1800 to 1000 h and HF/LP diet from 1001 to 1759 h).
View Article and Find Full Text PDFHist Cienc Saude Manguinhos
May 2020
The article analyzes the process of reconstructing the nursing profession in Brazil post-1930. We examine teaching practices in higher education and the reinsertion of black women in professional nursing through the biography of Lydia das Dôres Matta, a nurse trained in the second class graduated from the São Paulo School of Nursing as a scholarship student in the Special Public Health Service Nursing Program. The results allow reflections on the professional identity of Brazilian nursing from the trajectory of a black woman, as well as on the historiography of nursing in Brazil.
View Article and Find Full Text PDFNLRP3 inflammasome is a protein complex crucial to caspase-1 activation and IL-1β and IL-18 maturation. This receptor participates in innate immune responses to different pathogens, including the bacteria of genus Brucella. Our group recently demonstrated that Brucella abortus-induced IL-1β secretion involves NLRP3 inflammasome and it is partially dependent on mitochondrial ROS production.
View Article and Find Full Text PDFBackground: Rosacea is a chronic inflammatory skin condition that usually occurs in adults and rarely has been reported in children, although both subtypes share the same clinical characteristics.
Case Report: A 10-year-old female presented dermostosis on the face, affecting cheeks and nose, characterized by erythema, papules, pustules, scars of two years of evolution, as well as bilateral conjunctivitis, blepharitis and corneal opacity. She referred recurrent exacerbations and partial remission of cutaneous lesions and ocular symptoms related to sun exposure.
The immune system is armed with a broad range of receptors to detect and initiate the elimination of bacterial pathogens. Inflammasomes are molecular platforms that sense a diverse range of microbial insults to develop appropriate host response. In that context, noncanonical inflammasome arose as a sensor for Gram-negative bacteria-derived LPS leading to the control of infections.
View Article and Find Full Text PDFGenomes are dynamic biological units, with processes of gene duplication and loss triggering evolutionary novelty. The mammalian skin provides a remarkable case study on the occurrence of adaptive morphological innovations. Skin sebaceous glands (SGs), for instance, emerged in the ancestor of mammals serving pivotal roles, such as lubrication, waterproofing, immunity, and thermoregulation, through the secretion of sebum, a complex mixture of various neutral lipids such as triacylglycerol, free fatty acids, wax esters, cholesterol, and squalene.
View Article and Find Full Text PDFis a facultative intracellular bacterium that causes brucellosis, a prevalent zoonosis that leads to abortion and infertility in cattle, and undulant fever, debilitating arthritis, endocarditis, and meningitis in humans. Signaling pathways triggered by involves stimulator of IFN genes (STING), which leads to production of type I IFNs. In this study, we evaluated the pathway linking the unfolded protein response (UPR) and the endoplasmic reticulum-resident transmembrane molecule STING, during infection.
View Article and Find Full Text PDFOsteochondritis dissecans (OCD) is a condition that corresponds to an idiopathic focal lesion affecting the subchondral bone with possible compromise of the stability of the adjacent cartilage. Treatment depends on the size of the lesion, cartilage stability, and the physeal status. The case reported is about an 18-year-old male patient who complained of suffering from knee pain for a period of ten months.
View Article and Find Full Text PDFChemical study of the CH₂Cl₂-MeOH (1:1) extract of the sponge collected in Mayotte highlighted three new tryptophan derived alkaloids, 6,6'-bis-(debromo)-gelliusine F (), 6-bromo-8,1'-dihydro-isoplysin A () and 5,6-dibromo-8,1'-dihydro-isoplysin A (), along with the synthetically known 8-oxo-tryptamine () and the three known molecules from the same family, tryptamine (), ()-6-bromo-2'-demethyl-3'--methylaplysinopsin () and ()-6-bromo-2'-demethyl-3'--methylaplysinopsin (). Their structures were elucidated by 1D and 2D NMR spectra and HRESIMS data. All compounds were evaluated for their antimicrobial and their antiplasmodial activities.
View Article and Find Full Text PDFDNA extracted from keratinous and chitinous materials can be a useful source of genetic information. To effectively liberate the DNA from these materials, buffers containing relatively high levels of DTT, proteinase K, and detergent are recommended, followed by purification using either silica column or organic methods.
View Article and Find Full Text PDFObjective: To determine the accuracy of various cone beam computed tomography (CBCT) devices in assessing the buccal bone in anterior teeth.
Material And Methods: A skull encased in tissue equivalent material was imaged with six CBCT devices: 3D Accuitomo 170 (J. Morita, Japan), CS 9000 3D (Carestream Dental, France), CS 9300 (Carestream Dental, France), Eagle 3D (Dabi Atlante, Brazil), i-CAT Classic (Imaging Sciences International, USA) and Orthophos XG 3D (Sirona Dental System, USA).
The interest of using biochar, the solid byproduct from organic waste pyrolysis, as soil conditioner is significantly increasing. Nevertheless, persistent organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), are formed during pyrolysis due to the incomplete combustion of organic matter. Consequently, these pollutants may enter the environment when biochar is incorporated into soil and cause adverse ecological effects.
View Article and Find Full Text PDFThe selection of suitable raw materials in the cosmetic research and development is a key point, not only in order to obtain the expected results but also to avoid undesirable side effects. This study evaluated the toxicity potential of four different plant extracts and their acceptability studies. , , and extracts were analysed alone or in combination and added in cosmetic formulations.
View Article and Find Full Text PDFToxicon X
April 2019
Several snake species possess, in their circulating blood, endogenous PLA inhibitors (sbPLIs) with the primary function of natural protection against toxic enzymes from homologous and heterologous venoms. Among the three structural classes of sbPLIs - named α, β, and γ - the β class (sbβPLIs) is the least known with only four identified sequences, so far. The last class of inhibitors encompass molecules with leucine rich repeats (LRRs) motifs containing repeating amino acid segments.
View Article and Find Full Text PDFThis article sought to evaluate the conformity between recommendations regarding antidepressant use during breastfeeding found in drug package inserts with recommendations from science-based bibliographic sources. We evaluated the standard drug package inserts of 23 antidepressants with active registration in Brazil. The presence of contraindications of antidepressant use during breastfeeding was compared with information present in the Brazilian Ministry of Health technical manual, the book Medications and Mothers' Milk and on the databases LactMed, Micromedex and UpToDate.
View Article and Find Full Text PDFIn the 1950s the myxoma virus was released into European rabbit populations in Australia and Europe, decimating populations and resulting in the rapid evolution of resistance. We investigated the genetic basis of resistance by comparing the exomes of rabbits collected before and after the pandemic. We found a strong pattern of parallel evolution, with selection on standing genetic variation favoring the same alleles in Australia, France, and the United Kingdom.
View Article and Find Full Text PDFBisphenol A (BPA) is an endocrine-disrupting chemical (EDC) that is widely used in the manufacturing of plastics and inner linings of food cans. Previously, it was reported that BPA disturbed the sexual dimorphic nucleus of the hypothalamus and delaying the onset of puberty attributed to an estrogenic action. In addition, BPA during the perinatal period increased LH serum concentrations in male offspring of dams at doses below the reproductive NOAEL (No Observable Adverse Effect Level) based upon World Health Organization guidelines.
View Article and Find Full Text PDFThis in vitro study aimed to compare the performance of a light-emitting diode (LED) device (Midwest Caries I.D.: MID), International Caries Detection and Assessment System (ICDAS) visual criteria, and fluorescence-based devices (DIAGNOdent: LF; DIAGNOdent pen: LFpen; and Quantitative Light-induced Fluorescence: QLF) in detecting occlusal caries in the primary molars.
View Article and Find Full Text PDFIntroduction: The cochlear implant is an effective device for children with severe and/or profound prelingual hearing loss, since it provides considerable improvement in oral language acquisition through the auditory pathway. The use of a cochlear implant contributes to the development of auditory perception, favoring the acquisition of the linguistic processes related to communication skills, which might have a positive effect on other areas of development.
Objective: The aim of this study was to verify the performance of children using cochlear implants for expressive and receptive oral language.
Objective: to evaluate the safety of a topical formulation containing chamomile microparticles coated with chitosan in the skin of healthy participants.
Method: phase I blind, controlled, non-randomized, single-dose clinical trial with control for skin, base formulation, and formulation with microparticles. The variables analyzed were irritation and hydration by the Wilcoxon and Kruskall-Wallis tests.
spp. infection is frequently acquired through contaminated aerosols. The role of interleukin-1 beta (IL-1β) in the early pulmonary response to respiratory infection is unknown.
View Article and Find Full Text PDFClupeiformes, such as sardines and herrings, represent an important share of worldwide fisheries. Among those, the European sardine (, Walbaum 1792) exhibits significant commercial relevance. While the last decade showed a steady and sharp decline in capture levels, recent advances in culture husbandry represent promising research avenues.
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