Vlad Dumitru Brata

Dr. Vlad Dumitru Brata

Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Cluj, Romania
orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
21 November 2022 in Antibiotics
Verified
Journal Article
Open access
PDF file
PSPopa Stefan-Lucian
Popa Stefan-Lucian
CPCristina Pop
Cristina Pop
MDMiruna Dita
Miruna Dita
VBVlad Dumitru Brata
Vlad Dumitru Brata
RBRoxana Bolchis
Roxana Bolchis
APAlexandru-Marius Padureanu
Alexandru-Marius Padureanu
Antibiotic resistance (AR) is a naturally occurring phenomenon with the capacity to render useless all known antibiotics in the fight against bacterial infections. Although bacterial resistance appeared before any human life form, this process has accelerated in the past years. Important causes of AR in modern times could be the over-prescription of antibiotics, the presence of faulty infection-prevention strategies, pollution in overcrowded areas, or the use of antibiotics in agriculture and farming, together with a decreased interest from the pharmaceutical industry in researching and testing new antibiotics. The last cause is primarily due to the high costs of developing antibiotics. The aim of the present review is to highlight the techniques that are being developed for the identification of new antibiotics to assist this lengthy process, using artificial intelligence (AI). AI can shorten the preclinical phase by rapidly generating many substances based on algorithms created by machine learning (ML) through techniques such as neural networks (NN) or deep learning (DL). Recently, a text mining system that incorporates DL algorithms was used to help and speed up the data curation process. Moreover, new and old methods are being used to identify new antibiotics, such as the combination of quantitative structure-activity relationship (QSAR) methods with ML or Raman spectroscopy and MALDI-TOF MS combined with NN, offering faster and easier interpretation of results. Thus, AI techniques are important additional tools for researchers and clinicians in the race for new methods of overcoming bacterial resistance.

21 May 2023 in Medicina
Verified
Journal Article
Open access
PDF file
PSPopa Stefan-Lucian
Popa Stefan-Lucian
Abdulrahman IsmaielAbdulrahman Ismaiel
Abdulrahman Ismaiel
Ludovico AbenavoliLudovico Abenavoli
Ludovico Abenavoli
APAlexandru-Marius Padureanu
Alexandru-Marius Padureanu
MDMiruna Dita
Miruna Dita
LDLiliana-Elisabeta David
Liliana-Elisabeta David
Background and Objectives: The development of liver fibrosis as a consequence of continuous inflammation represents a turning point in the evolution of chronic liver diseases. The recent developments of artificial intelligence (AI) applications show a high potential for improving the accuracy of diagnosis, involving large sets of clinical data. For this reason, the aim of this systematic review is to provide a comprehensive overview of current AI applications and analyze the accuracy of these systems to perform an automated diagnosis of liver fibrosis. Materials and Methods: We searched PubMed, Cochrane Library, EMBASE, and WILEY databases using predefined keywords. Articles were screened for relevant publications about AI applications capable of diagnosing liver fibrosis. Exclusion criteria were animal studies, case reports, abstracts, letters to the editor, conference presentations, pediatric studies, studies written in languages other than English, and editorials. Results: Our search identified a total of 24 articles analyzing the automated imagistic diagnosis of liver fibrosis, out of which six studies analyze liver ultrasound images, seven studies analyze computer tomography images, five studies analyze magnetic resonance images, and six studies analyze liver biopsies. The studies included in our systematic review showed that AI-assisted non-invasive techniques performed as accurately as human experts in detecting and staging liver fibrosis. Nevertheless, the findings of these studies need to be confirmed through clinical trials to be implemented into clinical practice. Conclusions: The current systematic review provides a comprehensive analysis of the performance of AI systems in diagnosing liver fibrosis. Automatic diagnosis, staging, and risk stratification for liver fibrosis is currently possible considering the accuracy of the AI systems, which can overcome the limitations of non-invasive diagnosis methods.

Anca Monica BrataAnca Monica Brata
Anca Monica Brata
ACAurelia Ioana Chereji
Aurelia Ioana Chereji
VBVlad Dumitru Brata
Vlad Dumitru Brata
AMANAMARIA MORNA
ANAMARIA MORNA
OTOlivia Paula Tirpe
Olivia Paula Tirpe
IMIulia C. Muresan
Iulia C. Muresan
Organic products have grown ever more popular in recent years due to increased concerns regarding one’s health, the environment, and sustainability. The COVID-19 pandemic has only accelerated this growth, prompting producers to adapt to a rapidly growing market while maintaining the same standard of quality. We have conducted a questionnaire-based pilot study on 190 organic food consumers from Bihor county, Romania, in order to analyze the main factors influencing customers’ beliefs regarding organic food consumption, as well as assess the extent to which their consumption frequency changed after the pandemic. A principal component analysis was performed, dividing the factors into two categories referring to intrinsic and extrinsic characteristics of the products, respectively. It was noticed that the most important cues were ranked the same by our 190 respondents, regardless of their socio-demographical background. At the same time, people who consumed organic products more frequently before the pandemic have either maintained or increased their consumption, while more indifferent consumers maintained or decreased the proportion of organic foods in their diet.

29 July 2022 in Foods
Verified
Journal Article
Open access
PDF file
IMIulia C. Muresan
Iulia C. Muresan
RMRezhen Harun M.Rashid
Rezhen Harun M.Rashid
Anca Monica BrataAnca Monica Brata
Anca Monica Brata
VBVlad Dumitru Brata
Vlad Dumitru Brata
ICIoan Daniel Chiciudean
Ioan Daniel Chiciudean
Diana E. DumitrasDiana E. Dumitras
Diana E. Dumitras
Crisis periods such as the COVID-19 pandemic may reshape consumers’ behavior and challenge all food chain actors on how to assure and better respond to consumers’ needs and wants. This study aimed to reveal the main concerns of consumers related to food consumption during the COVID-19 pandemic and to identify factors that may influence their behavior. An online survey was performed among 859 Romanian consumers. The Principal Component Analysis revealed five factors: ecofriendly, socio-economic aspects, food waste, plant-based food, and easily accessible food, which affected consumers’ food behavior during the COVID-19 pandemic. It was noticed that females tended to be more preoccupied with the socio-economic aspects and food waste components, compared to males. At the same time, older people were more concerned about the ecofriendly, socio-economic aspects and health concerns, compared with the younger group, the differences being statistically significant. These insights provide information on crucial aspects that shape consumers’ behavior during crisis periods.

26 May 2022 in Biomedicines
Verified
Journal Article
Open access
PDF file
MBMaria Barsan
Maria Barsan
Anca Monica BrataAnca Monica Brata
Anca Monica Brata
Abdulrahman IsmaielAbdulrahman Ismaiel
Abdulrahman Ismaiel
DDDinu Iuliu Dumitrascu
Dinu Iuliu Dumitrascu
ABAndrei-Vlad Badulescu
Andrei-Vlad Badulescu
VBVlad Dumitru Brata
Vlad Dumitru Brata
The global prevalence of vitamin D deficiency is more than 20%, and the main causes include insufficient intake, reduced absorption, abnormal metabolism, or resistance to its effects. The levels of serum vitamin D appear to influence cardiovascular risk, and the mechanism involved is linked to the transient outward current and the ultrarapid delayed rectifier K+ current densities, activated through the nuclear vitamin D receptor and Akt pathway. A significant number of studies have correlated vitamin D deficiency with an increased risk of developing cardiac arrhythmias and sudden cardiac death. For this reason, the purpose of this review is to analyze the relation between vitamin D deficiency and the pathogenesis of cardiac arrhythmias. Atrial fibrillation, increased QT interval, and QT dispersion were the most common findings associated with vitamin D deficiency. Due to the heterogeneity among existing studies, further research is necessary to confirm the existing data and to analyze its relationship with other types of arrhythmias.

14 May 2022 in Nutrients
Verified
Journal Article
Open access
PDF file
PSPopa Stefan-Lucian
Popa Stefan-Lucian
DDDinu Iuliu Dumitrascu
Dinu Iuliu Dumitrascu
CPCristina Pop
Cristina Pop
TBTeodora Surdea Blaga
Teodora Surdea Blaga
Abdulrahman IsmaielAbdulrahman Ismaiel
Abdulrahman Ismaiel
Simona Mihaela GradSimona Mihaela Grad
Simona Mihaela Grad
Functional dyspepsia represents one of the most common and prevalent disorders of the brain–gut interaction, with a large number of widespread risk factors being identified. With an intricate pathogenesis and symptomatology, it heavily impacts the quality of life and, due to the limited efficacy of traditional pharmacological agents, patients are likely to seek other medical and non-medical solutions to their problem. Over the last few years, significant research in this domain has emphasized the importance of various psychological therapies and nutritional recommendations. Nevertheless, a correlation has been established between functional dyspepsia and food intolerances, with more and more patients adopting different kinds of exclusion diets, leading to weight loss, restrictive eating behaviour and an imbalanced nutritional state, further negatively impacting their quality of life. Thus, in this systematic review, we aimed at analysing the impact and efficiency of certain exclusion diets undertook by patients, more precisely, the gluten-free diet and the low-FODMAP diet.