Publications by authors named "Mascarenhas M"

Bananas and plantains are important staple food crops affected by biotic and abiotic stresses. The gene editing technique via Clustered Regularly Interspaced Short Palindromic Repeats associated with the Cas protein (CRISPR/Cas) has been used as an important tool for development of cultivars with high tolerance to stresses. This study sought to develop a protocol for the construction of vectors for gene knockout.

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Background: Myofascial release (MFR) is a form of massage therapy that involves identifying and releasing restrictions in the fascia and muscles. MFR-like techniques have shown improvement in abdominal pain, distention, constipation, and quality of life (QoL) in adults. Therefore, MFR may be helpful in patients with irritable bowel syndrome (IBS), a disorder of gut-brain interaction or functional gastrointestinal disorder, mainly presenting with prolonged abdominal pain, bloating, and altered defecation patterns, leading to impairment in QoL.

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Objective: To estimate prevalence and analyze factors associated with body image dissatisfaction among Brazilian adolescent school students.

Methods: Cross-sectional study with data from the 2019 National School Health Survey (PeNSE). Prevalence of self-reported body image dissatisfaction and respective 95% confidence intervals (95%CI) and its association with individual characteristics were estimated via odds ratios (OR) and 95% CI using logistic regression.

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Article Synopsis
  • Capsule endoscopy (CE) is a minimally invasive procedure used to examine the gastrointestinal tract, but it can be time-consuming and has limited diagnostic effectiveness in the upper GI tract.
  • Researchers developed an artificial intelligence (AI) model using convolutional neural networks (CNN) to automatically detect various types of pleomorphic lesions from a large dataset of CE images, evaluating its performance against expert classifications.
  • The AI model demonstrated high diagnostic accuracy across different areas of the GI tract, with the best results being 96.6% accuracy for gastric lesions and 97.6% for small bowel lesions, suggesting that AI tools could significantly enhance the effectiveness of capsule panendoscopy.
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Objective: To analyze the impact of the Covid-19 pandemic on the Maternal Mortality Ratio in Brazil from 2018 to 2021.

Method: Ecological time series study, which analyzed the trend and spatial distribution of maternal deaths from 2018 to 2021, with data obtained from the Mortality and Live Birth Information System. The Maternal Mortality Ratio values were subjected to Prais-Winsten linear regression analysis using Stata program, version 14.

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: While human papillomavirus (HPV) is well known for its role in cervical cancer, it also affects vaginal cancers. Although colposcopy offers a comprehensive examination of the female genital tract, its diagnostic accuracy remains suboptimal. Integrating artificial intelligence (AI) could enhance the cost-effectiveness of colposcopy, but no AI models specifically differentiate low-grade (LSILs) and high-grade (HSILs) squamous intraepithelial lesions in the vagina.

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The objective of this systematic review (SR) was to select studies on the use of gene editing by CRISPR technology related to plant resistance to biotic stresses. We sought to evaluate articles deposited in six electronic databases, using pre-defined inclusion and exclusion criteria. This SR demonstrates that countries such as China and the United States of America stand out in studies with CRISPR/Cas.

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The management and exchange of electronic health records (EHRs) remain critical challenges in healthcare, with fragmented systems, varied standards, and security concerns hindering seamless interoperability. These challenges compromise patient care and operational efficiency. This paper proposes a novel solution to address these issues by leveraging distributed ledger technology (DLT), including blockchain, to enhance data security, integrity, and transparency in healthcare systems.

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Article Synopsis
  • AI is revolutionizing gastroenterology, particularly in coloproctology, by improving diagnosis, treatment, and overall patient care.
  • Notable applications include colonoscopy, where AI helps detect polyps and early signs of colorectal cancer, and capsule endoscopy, which ensures quick and accurate video readings for various anomalies.
  • The article reviews current AI implementations in coloproctology and discusses potential future developments in the field.
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Background: Collaboration between registered dietitians and gastroenterologists has not been evaluated in cystic fibrosis (CF). We surveyed registered dietitians and gastroenterologists regarding the current participation of gastroenterologists in CF centers and identified possible areas to enhance partnership between the two disciplines.

Methods: An anonymous online survey was distributed targeting registered dietitians and gastroenterologists involved in CF care through three international listservs (CF Nutrition, CF DIGEST, and PEDGI) over a 6-week period.

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  • Intravenous lipids are important for very premature babies to get the nutrition they need safely.
  • The study compared two kinds of intravenous fats: one made with fish oil (CO-ILE) and another made with only soybean oil (SOLE), to see which was better for babies needing long-term nutrition.
  • Results showed that CO-ILE had a lower chance of causing liver problems and less yellowing of the skin compared to SOLE, suggesting CO-ILE might be a safer choice for these babies.
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Article Synopsis
  • - The integration of standalone software as a medical device (SaMD) is revolutionizing digestive medicine by enhancing diagnostic tools and personalized treatment strategies, primarily driven by advancements in medical imaging technology.
  • - This growth presents regulatory and ethical challenges requiring a robust framework to ensure safety, transparency, and fairness in the use of SaMDs, along with adherence to data management principles like findability and interoperability.
  • - To effectively incorporate SaMDs into clinical practices, it is vital to establish stringent data protection measures and conduct further studies to validate their safety and effectiveness in real-world medical environments.
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Colon capsule endoscopy (CCE) enables a comprehensive, non-invasive, and painless evaluation of the colon, although it still has limited indications. The lengthy reading times hinder its wider implementation, a drawback that could potentially be overcome through the integration of artificial intelligence (AI) models. Studies employing AI, particularly convolutional neural networks (CNNs), demonstrate great promise in using CCE as a viable option for detecting certain diseases and alterations in the colon, compared to other methods like colonoscopy.

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Background: Young students with skeletal immaturity report an increasing number of musculoskeletal symptoms associated with daily use of heavy backpacks. This cross-sectional study investigated the relationship between heavy backpack use and reports of pain.

Methods: Data were collected from 300 students aged 11 to 18 at the University of Toronto Schools.

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  • Conventional chemotherapy is still the main treatment for various cancers, despite advancements in the field, but it often leads to acute kidney injury (AKI), a serious side effect.
  • Nephrotoxic effects are commonly linked to platinum-based drugs, but other chemotherapy agents, including antimetabolites and alkylating agents, can also cause kidney damage.
  • The article reviews the causes, risks, and management strategies for AKI during chemotherapy, and discusses prevention methods, though avoiding kidney injury remains difficult due to multiple contributing factors.
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Introduction: Occupational accidents represent a severe and complex public health issue.

Objectives: To identify temporal trends in occupational mortality in Brazil from 2010 to 2019.

Methods: This was an ecological study with time series analysis using data from the Brazilian Ministry of Health Mortality Information System (Ministério da Saúde/ Sistema de Informações sobre Mortalidade).

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Objective: To analyze the trend in mortality from mental and behavioral disorders due to alcohol use in Brazil, 2010-2021.

Methods: This was an time series study using Mortality Information System data. Annual percentage change (APC) and 95% confidence intervals (95% CI) were calculated using Prais-Winsten linear regression.

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This article discusses a brief history of the concept of Right to Health, the concepts of rights and duties and why both are important and how, in healthcare, one's duty is another's right. The Rajasthan Right to Health Bill, 2022 is analysed and the shortcomings and issues in the Act are discussed. Suggestions to modify the Act and how the same can be implemented are given.

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Objective: To analyze the trend and spatial pattern of intimate partner rape reports against women in Northeast Brazil.

Methods: Ecological time-series study and spatial analysis with secondary data from the Notifiable Diseases Information System between 2013 and 2022. Gross rape rates were calculated by type of intimate partner and by age group of the victim.

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The development and implementation of artificial intelligence (AI), particularly deep learning (DL) models, has generated significant interest across various fields of gastroenterology. While research in luminal endoscopy has seen rapid translation to clinical practice with approved AI devices, its potential extends far beyond, offering promising benefits for biliopancreatic endoscopy like optical characterization of strictures during cholangioscopy or detection and classification of pancreatic lesions during diagnostic endoscopic ultrasound (EUS). This narrative review provides an up-to-date of the latest literature and available studies in this field.

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Article Synopsis
  • - Capsule endoscopy (CE) is a key tool for assessing inflammation in Crohn's disease, traditionally evaluated using scores like Lewis score, CECDAI, and ELIAKIM, but recent AI advancements allow for automated frame selection in CE videos.
  • - In this proof-of-concept study involving 61 patients, researchers developed an AI-based scoring system that correlated well with traditional inflammation scores, showing strong statistical relationships between their automated score and established metrics.
  • - The findings suggest that the AI-generated score is a reliable and objective method for evaluating inflammation in Crohn's disease, laying the groundwork for further advancements in CE technology.
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Article Synopsis
  • * A total of 70 colposcopy exams were analyzed, with results showing the CNN achieved high sensitivity (99.7%) and specificity (98.6%), alongside an overall accuracy of 99.0%.
  • * The successful implementation of this CNN could enhance the diagnostic effectiveness of colposcopy, potentially leading to better management of cervical cancer precursor lesions.
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Capsule endoscopy (CE) is commonly used as the initial exam for suspected mid-gastrointestinal bleeding after normal upper and lower endoscopy. Although the assessment of the small bowel is the primary focus of CE, detecting upstream or downstream vascular lesions may also be clinically significant. This study aimed to develop and test a convolutional neural network (CNN)-based model for panendoscopic automatic detection of vascular lesions during CE.

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Introduction: The inability of the spinal cord to propagate sensory and motor stimuli as a result of the disruption of the nerve tracts is called spinal cord injury.

Objective: This study analyzes clinically and radiologically the hands and wrists of spinal cord injured patients, evaluating their motor and sensitive functionality, in order to determine if these patients are more likely to develop degenerative alterations.

Methods: 14 patients (8 paraplegics and 6 tetraplegics) were evaluated, undergoing anamnesis and clinical examination - a scale of muscular strength (MRC - Medical Research Council) and the amplitude measurement of the movement with a manual goniometer (ROM), were used for objective evaluation - and x-ray exams.

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