70 results match your criteria: "Santa Cecilia University[Affiliation]"

Background: Motor performance is related to executive function, especially in dual tasks conditions. Thus, the aim of this study was to compare the results of Timed "Up and Go" test with and without dual task in older people with and without cognitive impairment according to verbal fluency test.

Method: A cross-sectional study was carried out in 291 elderly people attended by the Basic Health Unit of the city of Santos, São Paulo, Brazil.

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This study investigates the impact of environmentally relevant concentrations of azithromycin on Poecilia reticulata, through biomarkers at different levels. To this end, the somatic indexes of P. reticulata were evaluated, and liver and gill samples were collected and analyzed for biochemical and histopathological alterations.

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Pharmaceuticals and personal care products (PPCPs) are known to interact with microplastics (MPs) in aquatic environments, with substances such as the antimicrobial triclosan (TCS) and the synthetic hormone 17α-ethinylestradiol (EE2) being prevalent. These persistent contaminants are linked to toxic effects in aquatic organisms. This study aimed to investigate histological and morphometric changes in the gills of Ucides cordatus exposed to microplastics alone and microplastics contaminated with PPCPs.

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Objective: To report and rank orthodontic finishing errors recorded in the clinical phase of the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO) examination and correlate pretreatment case complexity with orthodontic treatment outcomes.

Materials And Methods: This single-center cross-sectional survey collected retrospective data from the clinical phase of BBO examinations between 2016 and 2023. The quality of orthodontic clinical outcomes of each case was assessed by means of the Cast-Radiograph Evaluation (CRE), while case complexity was evaluated using the Discrepancy Index (DI), both tools provided by the American Board of Orthodontics.

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Fish are excellent bioindicators and can reveal the presence of plastic in the environment. Diagnosing the composition and abundance of polymers in the fish diet makes it possible to evaluate their point sources and possible trophic transfers. We aimed to use the gastrointestinal contents of Poecilia reticulata in subtropical urban streams to detect the occurrence, shape, color, size, and chemical composition of polymers.

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The synthetic hormone 17α ethinyl estradiol (EE2) is a molecule widely used in female contraceptives and recognized as a contaminant of attention (Watch List) in the European Union due to its high consumption, endocrine effects and occurrence in aquatic environments. Its main source of introduction is domestic sewage where it can be associated with other contaminants such as microplastics (MPs). Due to their characteristics, they can combine with each other and exacerbate their isolated effects on biota.

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Systemic effects of settleable atmospheric particulate matter (SePM) on swamp ghost crab Ucides cordatus.

Sci Total Environ

August 2024

Department of Marine Sciences, Federal University of São Paulo, Baixada Santista Campus, 168 Maria Máximo Street, 11030-100 Santos, São Paulo, Brazil; Santa Cecília University: Post Graduate Program in Environmental Science and Technology, 277 Oswaldo Cruz Street, 11045-907 Boqueirão, Santos, São Paulo, Brazil.

Metallurgical activities are a significant source of settleable atmospheric particulate matter (SePM). The material is exposed to wind action, leading to its deposition throughout terrestrial and aquatic ecosystems, thus promoting contamination by metals and metalloids. However, knowledge of the impacts on biota is scarce.

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What are the global patterns of microplastic ingestion by fish? A scientometric review.

Environ Pollut

June 2024

Graduate Program in Comparative Biology, State University of Maringá (UEM), Maringá, Brazil; Laboratory of Ichthyology, Ecology and Biomonitoring, State University of West Paraná (Unioeste), Rua Universitária, University Garden, 1619, Cascavel, PR, Brazil. Electronic address:

The billions of tons of plastic released into the environment mostly fragment into smaller particles that reach rivers and oceans, posing toxicity risks to aquatic organisms. As fish serve as excellent environmental indicator organisms, this study aims to comprehensively review and quantify published data regarding the abundance of microplastics (MPs) ingested by fish through scientometric analysis. Systematic analysis reveals that global aquatic ecosystems are contaminated by MPs, with the characteristics of these contaminants stemming from inadequate disposal management practices.

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Marine Protected Areas (MPAs) are designed to conserve biodiversity and vulnerable ecosystems. This study aimed to assess the environmental quality of three Brazilian MPAs, based on the integrated analysis of biomarkers in pufferfish. The MPAs are differentiated by the degree of anthropogenic influences.

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Plastic pellets make Excirolana armata more aggressive: Intraspecific interactions and isopod mortality differences between populations.

Sci Total Environ

February 2024

Marine Geochemistry Laboratory, Institute of Geoscience, Federal University of Bahia (UFBA), Rua Barão de Jeremoabo, s/n, Campus Ondina, 40170-115 Salvador, Bahia, Brazil.

Plastic pellets represent a significant component of microplastic (< 5 mm) pollution. Impacts caused by plastic pellets involve physical harm and toxicity related to ingestion and non-ingestion (such as the release of chemicals in leachates). The latter is the main route of exposure for invertebrate macrobenthic populations.

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Background: Herbst therapy is an effective treatment for Class II malocclusions. However, the maintenance of the effects after fixed appliances treatment remains questionable. This retrospective study aimed to assess, using digital dental models, the sagittal and transverse dental arch changes in young patients during two Class II Division 1 treatment phases, first with modified Herbst appliance (HA) and then with fixed appliances.

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Article Synopsis
  • The green crab faces significant physiological challenges due to its exposure to varying tides, experiencing both air and water conditions that affect its oxygen consumption and waste excretion.
  • During a 14-hour study, oxygen consumption rates remained stable during air exposure but increased by 3.4 times upon re-immersion, while ammonia and urea excretion drastically decreased in air and then rebounded significantly upon recovery.
  • Although no protein damage was found in the gills, lipid damage occurred in the anterior gill post-air exposure, indicating oxidative stress, while catalase activity showed a decrease during recovery, highlighting the physiological impact of emersion on the crabs.
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Aim: This study aimed to evaluate the spatial location of the second mesiobuccal canal (MB2) of maxillary molars (MMs), using cone-beam computed tomography (CBCT), in a Brazilian subpopulation.

Materials And Methods: The CBCT examination of 250 patients performed on the Eagle 3D device was analyzed, totaling 787 MMs. Using the Radiant Dicom Viewer software, measurements were made of the distances, in millimeters (mm), between the first mesiobuccal canal (MB1), MB2, and palatal (P) canal inputs, from the axial sections.

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Permeable phylogeographic barriers characterize the vast open ocean, boosting gene flow and counteracting population differentiation and speciation of widely distributed and migratory species. However, many widely distributed species consists of distinct populations throughout their distribution, evidencing that our understanding of how the marine environment triggers population and species divergence are insufficient. The sailfish is a circumtropical and highly migratory billfish that inhabits warm and productive areas.

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Context: Manufacturers have produced a wide variety of nickel-titanium (NiTi) alloys, but the available literature is limited on the accuracy of some integrated electronic apex locators (EAL) used with different NiTi heat treatments in working length (WL) determination.

Aim: This study aims to evaluate the influence of different heat treatments of NiTi instruments, and the diameter of the apical preparation on the accuracy of an EAL used during root canal preparation using an integrated EAL and motor unit.

Materials And Methods: Nineteen extracted human mandibular incisors were included in the study.

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Fishers' Indigenous and local knowledge (ILK) has multidimensional contributions to improve fisheries and aquatic ecosystems science, ranging from algae to whales and including management, conservation, ecology, and impact assessment. The challenges are to sustain this knowledge, recognize its value, and to include ILK holders in resource management and decision-making.

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Microplastics, including plastic pellets, get stranded on sandy beaches. They persist in the oceans for long periods and frequently carry contaminants. Acute and chronic toxicity has been observed when marine organisms are exposed to high densities of plastic pellets in laboratory assays.

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The burrowing goby Trypauchen vagina has been reported from Brazil for the first time. This goby occurs naturally in the Indo-Pacific region, where it is typically found burrowed in the bottom substrata of marine or brackish waters. Given its rapid development, extended longevity and multiple spawning cycles, the species is represented by large populations in Asian countries.

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Combined effects of polyethylene spiked with the antimicrobial triclosan on the swamp ghost crab (Ucides cordatus; Linnaeus, 1763).

Chemosphere

October 2022

Department of Marine Sciences, Federal University of São Paulo (UNIFESP), Baixada Santista Campus, Rua Maria Máximo, 168, 11030-100, Santos, São Paulo, Brazil; Department of Ecotoxicology, Santa Cecília University (UNISANTA), Rua Oswaldo Cruz, 266, 11045-907, Santos, São Paulo, Brazil.

Article Synopsis
  • Domestic sewage introduces pollutants like microplastics (MPs) and pharmaceuticals, posing risks to aquatic ecosystems, prompting this study on their combined biological impact using the swamp ghost crab Ucides cordatus as a model.
  • The research involved exposing crabs to various treatments (control, microplastics, microplastics with triclosan) for 7 days and analyzing tissue samples for multiple biomarkers indicative of biological stress and damage.
  • Results showed triclosan contamination in both water and crab tissues, with significant adverse effects observed from exposure to microplastics contaminated with triclosan, highlighting the role of microplastics as carriers for harmful substances in marine environments.
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Objective: The aim of this study was to evaluate the stability of treatment with a Herbst appliance associated with Hyrax expander (Stage I), followed by fixed appliances (Stage II) and follow-up for an average of 4 years after Stage II, on dentoskeletal facial structures.

Methods: This study involved 50 adolescents with Angle Class II division 1 malocclusion associated with mandibular retrognathism: Treated Group (TG-25) and Control Group (CG-25). Lateral cephalometric radiographs were taken: T1, immediately before Stage I (TG) or at the beginning of the follow-up period (CG); T2, at the end of Stage I (TG) or the follow-up period (CG); T3, at the end of Stage II (TG); and T4, on average, 4 years after Stage II (TG).

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Article Synopsis
  • Traditional methods for assessing contaminant effects on marine organisms often require euthanizing the species, but less invasive techniques may be better for threatened species.
  • This study focused on the biological responses of crabs (U. cordatus) exposed to microplastics and chemicals like Triclosan and 17α-Ethynylestradiol, analyzing effects like lipid peroxidation, DNA damage, and enzyme activity.
  • Results revealed that exposure to microplastics, whether alone or with additional contaminants, caused significant toxic effects such as oxidative stress, genotoxicity, and neurotoxic impacts, highlighting the effectiveness of non-lethal methods for studying environmental hazards.
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Remodeling of capillary rarefaction and deleterious arteries are characteristic hallmarks of hypertension that are partially corrected by exercise training. In addition, experimental evidence showed capillary rarefaction within the brain cortex and reduced cerebral blood flow. There is no information on hypertension- and exercise-induced effects on capillary profile and function within preautonomic nuclei.

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This study investigated the sublethal effects of environmentally relevant concentrations of DCOIT on the neotropical oyster Crassostrea brasiliana. Gills and digestive glands of animals exposed to increasing concentrations of DCOIT were analyzed for biochemical, cellular, and histopathological responses. Exposure to DCOIT (0.

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