Publications by authors named "Lopes E"

The rough pen shell Linnaeus, 1758 (family Pinnidae) is a mollusc with an Atlantic-Mediterranean distribution, typically inhabiting coarse sandy substrates. Habitat degradation is considered the primary cause of population decline, leading to the designation 'Vulnerable' in certain regions. In this study, we conducted a genetic analysis of populations of from Cabo Verde and compared them with populations from the Mediterranean and Macaronesia.

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Microbial communities are crucial for important ecosystem functions in the open ocean, such as primary production and nutrient cycling. However, few studies have addressed the distribution of microplankton communities in the remote oligotrophic region of the Pacific Ocean. Moreover, the biogeochemical and physical drivers of microbial community structure are not fully understood in these areas.

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Black hairy tongue (BHT) is a benign, self-limiting, and usually asymptomatic condition, characterized by abnormally hypertrophied and elongated filiform papillae on the surface of the tongue. In this article, we present the case of a woman diagnosed with hebephrenic schizophrenia who developed BHT after using olanzapine to treat an acute episode of the disease. The temporal coincidence between the development of BHT and the increase in olanzapine dosage to 20 mg daily suggests a likely dose-dependent relationship, making this psychotropic drug the most probable cause of this condition.

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The occurrence of hepatitis E virus (HEV) in patients with Schistosomiasis mansoni (SM) is still poorly understood in Brazil. The objective of this study was to estimate the seroprevalence of anti-HEV IgG in patients with SM and its association with the periportal fibrosis (PPF), assessed by serum markers and ultrasound criteria. This cross-sectional study was carried out in an endemic area in Pernambuco, Brazil, with schistosomal patients who underwent coproscopic survey.

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The study aimed to investigate the influence of different microalgae used in green water culture on the intestinal morphology of the seahorse Hippocampus reidi during the first 15 days of life. Four treatments were tested in triplicate, consisting of two microalgae (Tisochrysis lutea-ISO and Chaetoceros muelleri-CHO), used either individually (TISO and TCHO) or combined (TIC 1:1) in larval rearing water, and a treatment without microalgae (TWM). Larvae (6.

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Background: Women have a higher risk of developing osteoarthritis (OA) than men, including with obesity. To better understand this disparity, we investigated sex differences in metabolic and inflammatory factors associated with OA using a diet-induced mouse model of obesity. We hypothesized that 20 weeks of high-fat diet (HFD) would induce sexually dimorphic changes in both systemic and local risk factors of knee OA.

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Given the capability to produce parts with complex geometries, powder bed fusion using a laser beam (PBF-LB), one of several additive manufacturing techniques, is becoming increasingly prevalent in both research and industry. Advances in the development of biomedical lattice structures show a trend in the use of functional gradients for greater customization and adjustment of mechanical properties according to the demands. This study analyzed four biomedical potential lattice structures (regular and graded) manufactured using PBF-LB in Ti6Al4V alloy.

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  • Chromatin structure is crucial for DNA accessibility and gene expression; disrupting it can lead to diseases and cancer.
  • H2B variants, which are slightly different from standard H2B histones, have been found to be dysregulated during processes like epithelial to mesenchymal transition and could function as "oncohistones," similar to other histone mutations linked to cancer.
  • Research indicates that these H2B variants modify chromatin dynamics and can affect oncogenic gene expression, suggesting they could serve as early cancer biomarkers and potential therapeutic targets.
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  • - The study focused on optimizing the placement of storage yards in Amazonian native forests to reduce costs and environmental impact, utilizing a mathematical model in a 3556.27 ha area with 16,425 trees.
  • - Two models were analyzed: Model A without penalties and Model B with fictional cost penalties to limit excessive storage yard openings; Model B demonstrated a 27.3% reduction in the number of yards while maintaining effective wood storage.
  • - Results indicated that implementing cost penalties improved distribution efficiency and minimized environmental effects, suggesting the applicability of these models for companies practicing sustainable forest management.
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Objective: To analyze full vaccination coverage in live births in 2017 and 2018 in the capitals of the Midwest region of Brazil, according to social strata.

Methods: Population-based household survey with cluster sampling. Full coverage in children at 12 and 24 months of age and sociodemographic factors were analyzed.

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  • Schistosomiasis mansoni (SM) leads to periportal fibrosis (PPF) due to inflammation from parasite eggs, resulting in collagen and matrix protein buildup in the liver.
  • The study involved 242 individuals infected with S. mansoni in Pernambuco, Brazil, assessing the link between MMP-3 gene polymorphism (-1171 5A>6A) and PPF, alongside various sociodemographic factors.
  • Findings revealed no significant link between MMP-3 polymorphism and PPF; however, male gender and age over 41 were identified as predictors for the hepatosplenic form of the disease.
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  • The study investigates the link between childhood abuse and the risk of developing inflammatory bowel disease (IBD), particularly focusing on female health professionals.
  • Using data from the Nurses' Health Study II, researchers analyzed reports of physical, emotional, and sexual abuse and confirmed IBD diagnoses through medical records.
  • Results indicate that women with a history of severe childhood abuse had a significantly higher risk of Crohn's disease, but no similar association was found for ulcerative colitis.
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Poultry litter, commonly used as an organic fertilizer, can contain antimicrobial residues, resistant bacteria, and/or antimicrobial resistance genes. After application to soil, these contaminants can reach crops and be transported to aquatic systems through leaching and runoff. Once in water bodies, they can return to soil and crops through irrigation, establishing a cycle that promotes the selection, spread and persistence of antimicrobial resistance.

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The study aimed to evaluate the in vitro anthelminthic and antimicrobial activity of silver nanoparticles (AgNPs) against Dactylogyrus minutus and Aeromonas hydrophila, pathogens of Cyprinus carpio Koi. Gill arches of the fish were removed and placed into six-well plates containing 10 mL of tank water with varying concentrations of AgNPs: 100, 400, 500, 600, and 800 mg/L, along with control groups using tank water and distilled water. Each group was tested in triplicate.

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Background: Brazil faces notable Breast Cancer (BC) mortality despite lower incidence rates versus developed countries. Despite guidelines from medical societies, Brazilian public policy recommends biennial mammographic screening for women aged 50 to 69. This study investigates sociodemographic and clinical factors related to BC detection methods and clinical stage at diagnosis.

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  • The study explores the use of environmental DNA (eDNA) and advanced DNA sequencing techniques to monitor cetacean communities along the northern coast of Mainland Portugal.
  • During seasonal campaigns, researchers collected seawater samples to identify cetaceans and their potential prey, successfully detecting five cetacean species, including some not previously recorded in the area.
  • The findings suggest that eDNA analysis is a valuable tool for understanding marine ecosystems, particularly for tracking animal distribution and feeding habits.
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  • - The study examines the sea urchin Diadema africanum, which has caused ecological problems in the Canary Islands due to high populations, but is currently experiencing mass mortality events that affect its survival and diversity.
  • - Researchers analyzed 9,109 SNPs and a mitochondrial gene fragment to assess population structure and the impact of mortality, finding low genomic diversity, high connectivity, and evidence of recovery potential across the region.
  • - Interestingly, they identified specific SNPs associated with adaptation to seawater temperature, suggesting that despite low diversity and homogeneity, some local adaptation is occurring through a shared ancestral genomic pool and ongoing gene flow.
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Background: Ketamine has gained prominence as one of the most effective therapeutic options in unipolar treatment-resistant depression (TRD). However, most studies related to the antidepressant action of ketamine used intravenous (IV) or intranasal (IN) administration. The subcutaneous (SC) route of administration is a promising alternative, as it results in plasma levels comparable to IV, causes fewer side effects, and is easier and cheaper to administer than both IV and/or IN routes.

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Objective: Obesity is linked to perturbations in energy balance mechanisms, including ghrelin and leptin actions at the hypothalamic circuitry of neuropeptide Y (NPY) and melanocortin. However, information about the regulation of this system in the periphery is still scarce. Our objective was to study the regulation of the NPY/melanocortin system in the adipose tissue (AT) and evaluate its therapeutic potential for obesity and type 2 diabetes.

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Herein, we describe an electrochemical method for the synthesis of haloalkenyl chalcogenides from internal alkynes using hydrobromic and hydrochloric acids as halogenating agents, with the sole byproduct being hydrogen gas. This e-halochalcogenation protocol generates electrophilic chalcogenium species under mild conditions in a simple, undivided cell setup, enabling the synthesis of 25 examples of chloro- and bromovinyl selenides and sulfides with yields ranging from 10 % to 94 %, predominantly as the E-isomer. The synthetic utility of the halovinyl chalcogenides was demonstrated through various transformations, yielding densely functionalized tetra-substituted olefins.

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Flavivirus infections result in a variety of outcomes, from clinically inapparent infections to severe, sometimes fatal cases characterized by hemorrhagic manifestations and vascular leakage leading to shock (dengue), meningomyeloencephalitis (West Nile), and congenital abnormalities (Zika). Although there are approved vaccines against several flaviviruses, potentially enhancing cross-reactive immune responses have complicated the development and implementation of vaccines against dengue and Zika viruses, and no specific therapeutics currently exist. The flavivirus nonstructural protein 1 (NS1) is a promising antiviral target because it is a conserved multifunctional virulence factor that directly triggers vascular leak.

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  • - The study explored the presence of pathogenic germline variants in Brazilian patients with pancreatic adenocarcinoma, involving 192 unselected patients and analyzing 113 cancer-related genes, revealing a median age of 61 years and a significant portion presenting advanced disease stages.
  • - Of the patients, 6.25% carried pathogenic variants linked to known pancreatic cancer genes, while 13% had variants in genes with less established associations, with CHEK2, ATM, and FANC being the most affected.
  • - No differences in the prevalence of these variants were found based on family cancer history or ancestry, suggesting that all Brazilian pancreatic cancer patients should undergo genetic testing regardless of their background.
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Herein, we report the synthesis of seleno-substituted chromenes from selenoalkynes and phenols. In this cascade reaction, the applied gold catalyst not only functions as a π-acid, but also as a Lewis acid, enabling the propargylic substitution in the first step to connect the oxygen carbon bond. Under the optimal reaction condition a total of 26 chromenes were accessible by this modular access.

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  • Patients with advanced tumors in phase I trials often have strong treatment hopes but limited options; local ablative stereotactic radiation therapy (SRT) can help manage disease progression when oligoprogressive resistance occurs.* -
  • A study analyzed 42 patients receiving SRT for oligoprogressive lesions, finding that SRT significantly extended progression-free survival (7.1 months) and time to the next treatment (12.8 months), with no severe toxicities reported.* -
  • The findings suggest that tumor characteristics, like aggressiveness and clonal diversity, can help distinguish between patients needing different management strategies after SRT, potentially enhancing treatment outcomes.*
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