F1000Research最新文献

Historically, plant derived natural products and their crude extracts have been used to treat a wide range of ailments across the world. Biogerontology research aims to explore the molecular basis of aging and discover new anti-aging therapeutic compounds or formulations to combat the detrimental effects of aging and promote a healthy life span. The budding yeast Saccharomyces cerevisiae has been, and continues to be, an indispensable model organism in the field of biomedical research for discovering the molecular basis of aging S. cerevisiae has preserved nutritional signaling pathways (such as the target of rapamycin (TOR)-Sch9 and the Ras-AC-PKA (cAMP-dependent protein kinase) pathways, and shows two distinct aging paradigms chronological life span (CLS) and replicative life span (RLS). This review explores the anti-aging properties of natural products, predominantly derived from plants, and phytoextracts using S. cerevisiae as a model organism.

Introduction: Numerous studies have concluded that the functional ingredients benefit human health. Similarly, present times have seen exponential growth in functional food in bakery product segments like breads and biscuits. However, there is a lack of information on functional ingredients and their usefulness in developing functional bakery products. This bibliometric study addresses this gap by identifying the current research trends in functional ingredients.

Objective: To investigate current research trends on functional ingredients and their usefulness in developing functional biscuits.

Method: The study followed the "Scientific Procedures and Rationales for Systematic Literature Reviews" standards for retrieving literature. The study went through three major stages, "assembling," "arranging," and "assessing," to retrieve 612 articles from the Scopus database from 2013 to 2023. Through further filtering, 395 articles were selected.

Result: The analysis was conducted using R Studio and VOS viewer. The performance analysis and science mapping tools were used to evaluate the articles. The results showed a 5.76% annual growth in publication trends. The most researched functional ingredients were antioxidants, bioactive compounds, and dietary fiber. The review summarized the most studied foods to develop functional biscuits and highlighted the most experimented technological advancements.

Conclusion: The study revealed the need for future research studies on functional ingredients with a focus on studying the technical implications of technical advancements in extracting functional ingredients from foods. The study highlights the significance of future studies based on the acceptance of functional biscuits and their sensory properties, focusing on the mass population. The study derives the possible applicability of functional ingredients in developing new formulations from publications and their usefulness in developing new formulations. This insight on the applicability of functional ingredients provides an opportunity for biscuit/cookie manufacturing to boost consumption among the population to a new ascending graph.

Background: Despite the significant role of consensus and dissensus in knowledge production, formal approaches to consensus are notably less common in the humanities compared to their frequent application in natural, social, and life sciences. This article therefore explores the potential of expert consensus methods in humanities-related research.

Methods: In order to do so, an interdisciplinary team of both sciences researchers experienced in consensus methods and researchers familiar with the domain of the humanities and epistemology, conducted a literary review and exchanged their expertise in multiple brainstorm sessions.

Results: This resulted in the identification of six key elements of expert consensus methods. It also provided for an overview of different types of expert consensus methods that regularly used in the natural, social, and life sciences: Delphi studies, nominal groups, consensus conferences, and Glaser's state of the art method and illustrative examples from both sciences and humanities-related studies. An overview of possible purposes for applying these methods is provided to identify the research contexts in which these methods have proven their value, which can be extrapolated to humanities related issues for which these methods seem promising.

Conclusions: The comparisons and categorisation show that, when focusing on the purposes, there seem to be humanities-related issues that may lend themselves better to structured expert consensus methods than their subject matter and research methods might suggest. When deliberately applied in context chosen by researchers with expertise in a specific humanities domain, expert consensus methods can accelerate epistemic process, enhance transparency, increase replicability, stimulate diversity, and encourage fair processes in humanities research and the application of its findings.

This paper explores the concept of $\alpha -\psi -\varphi$ contractive mappings, contributing to the advancement of self-map extensions and fixed-point theorems within b-metric spaces. We introduce a new class of contractive mappings and demonstrate how they extend traditional contraction principles, offering a broader framework for analyzing fixed points in non-standard spaces. The main result of this study is a generalization of existing fixed-point theorems, supported by comprehensive corollaries, illustrative examples, and rigorous proofs. These findings provide deeper insights into the structure of b-metric spaces and open avenues for further applications in fields such as optimization and machine learning.

Background: Bacterial infections in the Intensive Care Units are a threat to the lives of critically ill patients. Their vulnerable immunity predisposes them to developing bacteria-associated sepsis, deteriorating their already fragile health. In the face of increasing antibiotics resistance, the problem of bacterial infection in ICU is worsening. Surveillance of bacterial infections in ICUs and drug resistance will help to understand the magnitude of the problem it poses and inform response strategies. We assessed bacterial infections in ICU setting by identifying prevalent Gram-negative bacterial species and characterized their antibiotic susceptibility patterns.

Methods: Cross-sectional samples collected from Kenyatta National Hospital ICU between January and June 2021 were cultured and phenotypic identification of culture-positive samples performed using VITEK 2. Antibiotic susceptibility patterns were determined based on Antimicrobial Susceptibility Testing (AST) results. Cephalosporin-resistant Gram-negative bacteria were assessed by PCR to detect the presence of ESBL genes including ( ^bla CTX-M, ^bla SHV, ^bla TEM, ^bla OXA).

Results and discussion: Out of the 168 Gram-negative isolates, Acinetobacter baumanii was the most abundant (35%). Other isolates that were present at frequencies more than 15% are Klebsiella pneumoniae and Escherichia. coli. A. baumaniii is known to be a notorious bacterium in ICU due to its multidrug resistance nature. Indeed, A. baumanii isolates from Kenyatta National Hospital showed significantly high level of phenotypic resistance. Concordant with the high level of phenotypic resistance, we found high carriage of the ESBL genes among the isolates analysed in this study. Moreover, majority of isolates harboured all the four ESBL genes.

Conclusion: A high rate of phenotypic and genetic resistance was detected among the tested isolates. Resistance to cephalosporins was primarily driven by acquisition of the ESBL genes. The high prevalence rate of ESBL genes in ICU bacterial isolates shown in this study has a important implication for ICU patient management and general antibiotics use.

Complexities in obturation and difficulties in disinfection represent significant issues that render endodontic treatment notably time-consuming. A new perspective is essential to reduce both working time and address these two challenges. To date, none of the established techniques for root canal obturation can assure a perfect seal. Solid materials are not easily manipulated to hermetically fill the intricate branches of the root canal system. Concurrently, anaerobic and facultative anaerobic bacteria, particularly Enterococcus faecalis, are predominant in discussions surrounding endodontic infections. Numerous studies have demonstrated that achieving complete disinfection of Enterococcus faecalis is exceedingly difficult, even with the use of irrigating solutions that possess strong antibacterial properties. Under anaerobic conditions, the invasion efficiency of facultative anaerobes is heightened. If irrigation and disinfection fail to entirely eliminate anaerobes and facultative anaerobes, a novel strategy is required to address the bacteria that persist within the root canal. Oxygen can easily permeate the root canal system, eradicate anaerobes, and inhibit facultative anaerobes from becoming pathogenic. Therefore, employing oxygen as a biomaterial for obturation following appropriate cleaning and shaping procedures is anticipated to address the two primary endodontic issues. This article aims to explore a new potential concept for a dental restoration system that utilizes an oxygen-permeable membrane to reduce the time required for endodontic treatment. The membrane is positioned at the orifice of a duct designed to connect the entire root canal system with ambient air outside the restoration. The function of the membrane is somewhat analogous to the masks used during the COVID-19 pandemic, as it allows for the circulation of oxygen while preventing the passage of fluids, debris, and microorganisms. We hypothesize that the oxygen circulating within the root canal system will also function as a continuously renewing antimicrobial agent.

Traditional educational frameworks in Saudi Arabia have historically adopted a deficit-based approach to special education, potentially overlooking the benefits of neurodiversity. As global educational paradigms shift toward inclusive practices, examining the alignment of Saudi special education laws with neurodiversity principles becomes crucial. This content analysis study aimed to explore the existing literature on special education in Saudi Arabia to ascertain whether the laws and policies support or hinder the practice of neurodiversity, a concept that is gaining international recognition but remains nascent in Saudi Arabia. A systematic literature search was performed in Web of Science and Scopus, yielding 21 relevant studies after screening and application of inclusion criteria. A content analysis was conducted, focusing on the categorization of data relevant to special education laws and their implications for neurodiversity. The analysis identified seven key categories, including Implementation of Inclusive education and transition services, that reflect the current state of special education laws in relation to neurodiversity. A conceptual model was developed, illustrating the potential of special education laws to both support and impede neurodiversity in Saudi Arabia and potentially worldwide.

Introduction: Rotator cuff (RC) tears are the most common and disabling musculoskeletal ailments among patients with shoulder pain. Although most individuals show improvement in function and pain following arthroscopic rotator cuff repair (ARCR), a subgroup of patients continue to suffer from persistent shoulder pain following the surgical procedure. Identifying these factors is important in planning preoperative management to improve patient outcomes.

Objective: This scoping review aims to identify biological factors, psychological factors, and social determinants of health contributing to the development of persistent pain in individuals after the ARCR procedure.

Inclusion criteria: All prospective and retrospective longitudinal studies reporting the risk factors contributing to persistent pain three months or longer after the ARCR surgery will be considered for this scoping review.

Methods: Our review will adhere to the Joanna Briggs Institute (JBI) scoping review methodology. Four electronic databases PubMed, CINAHL, Embase, and Scopus will be searched for studies in the English language. Additional studies can be found by conducting a citation analysis of the included studies. Title and abstract screening will be performed by two independent reviewers following the inclusion criteria, a third reviewer will be consulted about any differences. Next, full-text screening will be conducted, and the remaining search results will be reviewed to extract data, as well as to synthesize findings from all research. An overview of findings will be depicted in tabular format accompanied by a narrative summary of various factors contributing to persistent pain.

Background: Major trauma places substantial demand on critical care services, is a leading cause of death in under 40-year-olds and causes significant morbidity and mortality across all age groups. Various factors influence patient outcome and predefining these could allow prognostication. The aim of this study was to identify predictors of mortality from major trauma in intensive care.

Methods: This was a retrospective study of adult trauma patients admitted to general intensive care between January 2018 and December 2019. We assessed the impact on mortality of patient demographics, patterns of injury, injury scores (Glasgow Coma Score (GCS), Charlson's comorbidity index (CCI), Acute Physiology and Health Evaluation II (APACHE II), Injury Severity Score (ISS) and Probability of Survival Score (Ps19)), number of surgeries and mechanism of injury using logistic regression.

Results: A total of 414 patients were included with a median age of 54 years (IQR 34-72). Overall mortality was 18.6%. The most common mechanism of injury was traffic collision (46%). Non-survivors were older, had higher ISS scores with lower GCS on admission and lower probability of survival scores. Factors independently predictive of mortality were age 70-80 (OR 3.267, p = 0.029), age >80 (OR 27.043, p < 0.001) and GCS < 15 (OR 8.728, p < 0.001). Ps19 was the best predictor of mortality (p <0.001 for each score category), with an AUROC of 0.90.

Conclusions: The significant mortality predictors were age, fall from <2 metres, injury of head or limbs, GCS <15 and Ps19. Contrary to previous studies, CCI and APACHE II did not significantly predict mortality. Although Ps19 was found to be the best current prognostic score, trauma prognostication would benefit from a single validated scoring system incorporating both physiological variables and injury patterns.

Gender equality in decision-making positions is crucial to achieving the goals of good governance, peace, democracy, and inclusive/sustainable development. The major aim of this research article is to investigate the representation trend of women in higher decision-making positions over the last thirty years, since 1991. The federal three organs of government (law formulating, law enforcing, and law interpreting bodies) were the focus of this research. This research is a mixed type of research that inculcates both qualitative and quantitative data types. Secondary data sources from relevant government institutions were mostly used. The data was analyzed through content analysis of documents and presented via descriptive data presenting techniques. The research findings reveal that although women's representation in positions of decision-making has advanced considerably in recent years, the empirical data throughout the previous thirty years demonstrated the underrepresentation of women in higher leadership positions within the Ethiopian federal government. Furthermore, Women never held certain higher-level government leadership positions, such as the Prime Minister position, which seems to be forbidden for women. Women made up 23%, 19%, 19%, and 24% of the House of Peoples Representatives (HPR), the House of Federation (HoF), ministerial posts, and judicial bodies, respectively over the last three decades. Women are visibly underrepresented in the executive positions as compared to others. Thus, substantial policy and practical initiatives are needed to remove institutional, social, and economic barriers to boost women's advanced visibility in senior leadership roles.