2,534 results match your criteria: "Federal University of Sao Paulo UNIFESP.[Affiliation]"

Purpose: To assess the accuracy of various Pentacam indices in distinguishing keratoconus (KC) in pediatric patients with high astigmatism and to establish appropriate cutoff values.

Methods: This prospective multicenter cross-sectional study included 312 eyes from 167 patients aged 6 to 18 years (mean age, 13.1 ± 3.

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  • - The PUMAS project aims to address the lack of representation of African and Latin American populations in psychiatric genetics studies by analyzing genetic data from individuals with serious mental illness (SMI), including disorders like schizophrenia and bipolar disorder, using data from 89,320 participants across four different cohorts.
  • - The research involves harmonizing data from various clinical assessments to create standardized measures of mental health symptoms, which allows for more accurate genetic analyses across different diagnoses and symptoms.
  • - The findings show that schizophrenia and severe bipolar disorder are the most common diagnoses among participants, and a set of 19 key symptoms has been identified, which may be useful for cross-diagnosis genetic studies.
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Diflubenzuron (DFB) and pyriproxyfen (PPF) are pesticides widely used in agriculture and urban environments to control insect actions. The aim of this study was to evaluate the effects of chronic 30-day exposure to DFB (0.025 and 0.

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Influence of genetic polymorphism on sports talent performance versus non-athletes: a systematic review and meta-analysis.

BMC Sports Sci Med Rehabil

October 2024

Department of Biophysics and Physiology, Nucleus of Study in Physiology Applied to Performance and Health, Federal University of Piauí, 685 Odilon Araújo Avenue, Piçarra, Teresina, PI, 64017-280, Brazil.

Article Synopsis
  • Talented athletes are distinguished by their exceptional skills, which can be influenced by genetic polymorphisms; this study explores how genetics contribute to identifying sports talents.
  • A systematic review was performed on case-control studies published from 2003 to June 2024, analyzing data from multiple academic databases, ultimately including 119 studies that examined 50 genes linked to traits like endurance and strength.
  • The ACE I/D and ACTN3 R577X polymorphisms were frequently highlighted, suggesting that while genetic factors impact athletic performance, there are challenges in linking specific genotypes to consistent performance traits, indicating a need for further research in varied athletic populations.
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Clinical distinction between dementia with Lewy bodies (DLB) and late-onset Alzheimer's disease (AD) is difficult, while several features might affect the analyses of biomarkers. This study aimed to verify associations of anthropometric and demographic features with cerebrospinal fluid biomarkers, their ratios, and restructured traditional regression formulas in patients with DLB and AD, as well as in cognitively healthy controls. Consecutive outpatients with DLB were paired with outpatients with AD according to sex, dementia stage, and cognitive status, and with controls according to sex and age to investigate associations of sex, age, dementia duration, total sleep time, body mass index, alcohol use, smoking, sanitation, and APOE-ε4 alleles on the measurement of cerebrospinal fluid α-synuclein, biomarker ratios, and restructured traditional regression formulas involving amyloid-β (Aβ,Aβ,Aβ), tau, and phospho-tau Thr.

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Senescence impairs liver physiology, mitochondrial function and circadian regulation, resulting in systemic metabolic dysregulation. Given the limited research on the effects of combined exercise on an ageing liver, this study aimed to evaluate its impact on liver metabolism, circadian rhythms and mitochondrial function in senescence-accelerated mouse-prone 8 (SAMP8) and senescence-accelerated mouse-resistant 1 (SAMR1) mice. Histological, reverse transcription quantitative polymerase chain reaction (RT-qPCR) and immunoblotting analyses were conducted, supplemented by transcriptomic data sets and AML12 hepatocyte studies.

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Due to its widespread use and incomplete breakdown in the human body, amoxicillin has been detected in receiving water bodies. This raises significant concerns, like the promotion of antibiotic resistance, toxicity towards aquatic life, disruption of the natural balance of microbial communities within these water bodies, and the struggle of effectively removal by the traditional wastewater treatment plants. Consequently, exploring new processes to complement the existing methods is crucial.

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Inflammation plays a central role in many chronic diseases that characterize modern society. Leptin/adiponectin and adiponectin/leptin ratios have been recognized as notable markers of dysfunctional adipose tissue and, consequently, an inflammatory state. Blood samples were collected from 41 adult volunteers (40.

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  • Menstruation is linked to inflammation and can affect women's mental and physical health, highlighting the importance of assessing sleep quality.
  • A study analyzed data from 232 women, comparing menstruating and non-menstruating groups in terms of sleep quality, inflammatory markers, fatigue, anxiety, and quality of life.
  • Findings showed that menstruating women had lower sleep efficiency compared to non-menstruating women, suggesting that menstruation might negatively impact sleep, warranting further research on menstrual cycle phases and their effects.
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Introduction: In several countries, recent research has shown an increase in the prevalence of adult female acne (AFA), defined as the acne that appears in women aged over 25. This disease brings some particularities and challenges, such as a greater impact on quality of life (QoL) and chronicity. A negative impact on QoL has been observed, as well as anxiety, depression, anger, low self-esteem, and feelings of embarrassment and frustration.

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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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Metabolic reprogramming is a ubiquitous feature of transformed cells, comprising one of the hallmarks of cancer and enabling neoplastic cells to adapt to new environments. Accumulated evidence reports on the failure of some neoplastic cells to convert mannose-6-phosphate into fructose-6-phosphate, thereby impairing tumor growth in cells displaying low levels of mannose-6-phosphate isomerase (MPI). Thus, we performed functional analyses and profiled the proteome landscape and the repertoire of substrates of proteases (degradome) of melanoma cell lines with distinct mutational backgrounds submitted to treatment with mannose.

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Obesity is a complex chronic disease that affects millions of people worldwide. There is still significant stigma associated with it, which can lead to discrimination and create additional barriers for people who are already in treatment. On the other hand, it is noted that it can have serious implications for health and predisposition to noncommunicable chronic diseases.

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Vaccination has played a critical role in mitigating COVID-19. Despite the availability of licensed vaccines, there remains a pressing need for improved vaccine platforms that provide high protection, safety, and versatility, while also reducing vaccine costs. In response to these challenges, our aim is to create a self-adjuvanted vaccine against SARS-CoV-2, utilizing Virus-Like Particles (VLPs) as the foundation.

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  • * Cornea xenotransplantation using porcine corneas is a potential solution due to the cost-effectiveness and biological compatibility, but there are ethical issues and immune rejection concerns that need to be addressed.
  • * Recent advancements in genetic engineering and new immunosuppressive techniques are showing promise in increasing the success rate of porcine corneal transplants, highlighting the need for ongoing research to improve safety and effectiveness.
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Molecular Epidemiology and Phyloevolutionary Analysis of Porcine Parvoviruses (PPV1 through PPV7) Detected in Replacement Gilts from Colombia.

Int J Mol Sci

September 2024

Universidad Nacional de Colombia, Sede Bogotá, Facultad de Medicina Veterinaria y de Zootecnia, Departamento de Salud Animal, Centro de Investigación en Infectología e Inmunología Veterinaria-CI3V, Carrera 30 No. 45-03, Bogotá DC 111321, Colombia.

Article Synopsis
  • Eight porcine parvovirus species (PPV1 to PPV8) exist, but there's limited knowledge about their distribution and genetic differences, prompting this study.
  • Comprehensive genome analysis of PPVs from Colombia and GenBank data was conducted, involving the collection of sera from 234 gilts and extensive sequencing and phylogenetic analysis.
  • The study found that PPV3 was the most prevalent, with significant genetic differences identified among PPV species, contributing to better understanding and classification of these viruses in Colombian pig herds.
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The Effects of Collagen Peptides as a Dietary Supplement on Muscle Damage Recovery and Fatigue Responses: An Integrative Review.

Nutrients

October 2024

Laboratory of Biophotonics and Experimental Therapeutics, LABITEX, Evangelical University of Goiás, UniEvangélica, Av. Universitária S/N, Anápolis P.O. Box 75083-515, GO, Brazil.

Background/objectives: The oral administration of hydrolyzed collagen peptides is a scientifically validated intervention for enhancing skeletal muscle health and performance. This integrative review consolidates the evidence supporting the use of low molecular weight collagen peptides (2000-3500 daltons) for their superior bioavailability and absorption. Our objective was to review the effects of collagen peptide or hydrolyzed collagen supplementation on muscle damage, recovery, and construction related to physical exercise.

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Background: Mining occupies a prominent place in Brazil, which, if observed, means that one must work with the contingencies that arise from its activity. Mining disasters, such as those in Mariana and Brumadinho, exemplify the impact on the health system and are models for similar situations, so the study sought to investigate the impact of these disasters on hospital admissions in the Brazilian public health system.

Methods: Through segmented regression, we sought to assess possible changes in the variables HAA (authorized hospital admissions), total admission value, and mortality rate in Mariana and Brumadinho.

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  • Breastfeeding intention is a key predictor of breastfeeding practices, and the Theory of Planned Behavior (TPB) helps to understand this relationship by focusing on behavioral intention and its influences.
  • A study involving 325 pregnant women examined both original TPB constructs and additional factors like breastfeeding self-identity and income to see how they affect breastfeeding intention.
  • Results indicated that breastfeeding attitudes, perceived control, and subjective norms significantly impacted intentions, with breastfeeding self-identity and income also contributing importantly to the model's predictions.
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Background: Although important information concerning COVID-19 vaccination is available, the effects of the CoronaVac and ChadOx-1 vaccines on immunity and the redox balance in the upper airway mucosa of the aged population are not fully understood. Therefore, the aim of this study was to investigate the impacts of two doses of the CoronaVac or ChadOx-1 vaccine on immune/inflammatory responses and oxidative stress in the airway mucosa of older adults.

Methods: Seventy-six older adults of both sexes, with a mean age of 75.

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Integrative practices have been incorporated into palliative care to provide holistic and multidimensional care for patients. This study aims to identify the scope of integrative practices, specifically whole medical systems, and demonstrate its safety and efficacy, specially in children with cerebral palsy. Key databases, including Embase, Cochrane, Medline/PubMed, Scopus, Google Scholar, Lilacs and Scielo were searched using specific terms.

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  • * The researchers synthesized SPIONS using iron salts, confirmed their characteristics with several analytical techniques, and conducted germination tests on seeds with different treatments.
  • * Results indicated that while germination rates were highest in the control group, the SPION group showed the best root growth and higher iron absorption in the plants, suggesting SPIONS are effective as nanofertilizers.
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Polyploid Giant Cancer Cells (PGCCs) have been recognized as tumor cells that are resistant to anticancer therapies. However, it remains unclear whether their presence in the bloodstream can be consistently detected and utilized as a clinical marker to guide therapeutic anticancer regimens. To address these questions, we conducted a retrospective study involving 228 patients diagnosed with six different types of carcinomas (colon, gastric, NSCLC, breast, anal canal, kidney), with the majority of them (70%) being non-metastatic.

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  • The study investigates how cardiometabolic multimorbidity (CMM) and depression affect cognitive function in older adults, aiming to understand their individual and combined impacts.
  • It harmonizes data from 14 international cohort studies and utilizes various scales to assess CMM and depression among participants who did not have dementia at the start of the study.
  • Findings include the analysis of over 30,000 older adults, revealing that both CMM and depression are linked to cognitive decline, with further validation through additional studies across different settings.
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