bluuebunny/crossref_metadata_2025 huggingface dataset:
Promoting the Emerging Role of Pulse By-Products as Valuable Sources of Functional Compounds and Novel Food Ingredients
Authors: Lamonaca Antonella , De Angelis Elisabetta , Monaci Linda , Pilolli Rosa
Published: January 2025

The growth of the human population worldwide has increased food demand, generating the massive production of foods and consequently causing enormous production of waste every year. The indiscriminate exploitation of the already limited natural resources has also generated serious environmental and economic crises. The use, or reuse, of waste or by-products represents a viable solution to constrain the problem by promoting alternative routes of exploitation with multiple food and biotechnological applications. This review focuses on the most recent advances in the valorization of food by-products, with specific reference to legume-derived by-products. The main technological solutions for reintroducing and/or valorizing food waste are reported together with a critical discussion of the main pros and cons of each alternative, supported by practical case studies whenever available. First, the possibility to exploit the by-products as valuable sources of functional compounds is presented by reviewing both conventional and innovative extraction techniques tailored to provide functional extracts with multiple food, pharmaceutical, and biotechnological applications. Second, the possibility to valorize the by-products as novel food ingredients by inclusion in different formulations, either as a whole or as hydrolyzed/fermented derivatives, is also presented and discussed. To the best of our knowledge, several of the technological solutions discussed have found only limited applications for waste or by-products derived from the legume production chain; therefore, great efforts are still required to gain the full advantages of the intrinsic potential of pulse by-products.
Heat and Mass Transfer in Shrimp Hot-Air Drying: Experimental Evaluation and Numerical Simulation
Authors: Teleken Jhony T. , Amorim Suélen M. , Rodrigues Sarah S. S. , de Souza Thailla W. P. , Ferreira João P. , Carciofi Bruno A. M.
Published: January 2025

Shrimp is one of the most popular and widely consumed seafood products worldwide. It is highly perishable due to its high moisture content. Thus, dehydration is commonly used to extend its shelf life, mostly via air drying, leading to a temperature increase, moisture removal, and matrix shrinkage. In this study, a mathematical model was developed to describe the changes in moisture and temperature distribution in shrimp during hot-air drying. The model considered the heat and mass transfer in an irregular-shaped computational domain and was solved using the finite element method. Convective heat and mass transfer coefficients (57.0–62.9 W/m2∙K and 0.007–0.008 m/s, respectively) and the moisture effective diffusion coefficient (6.5 × 10−10–8.5 × 10−10 m2/s) were determined experimentally and numerically. The shrimp temperature and moisture numerical solution were validated using a cabinet dryer with a forced air circulation at 60 and 70 °C. The model predictions demonstrated close agreement with the experimental data (R2≥ 0.95 for all conditions) and revealed three distinct drying stages: initial warming up, constant drying rate, and falling drying rate at the end. Initially, the shrimp temperature increased from 25 °C to around 46 °C and 53 °C for the process at 60 °C and 70 °C. Thus, it presented a constant drying rate, around 0.04 kg/kg min at 60 °C and 0.05 kg/kg min at 70 °C. During this stage, the process is controlled by the heat transferred from the surroundings. Subsequently, the internal resistance to mass transfer becomes the dominant factor, leading to a decrease in the drying rate and an increase in temperatures. A numerical analysis indicated that considering the irregular shape of the shrimp provides more realistic moisture and temperature profiles compared to the simplified finite cylinder geometry. Furthermore, a sensitivity analysis was performed using the validated model to assess the impact of the mass and heat transfer parameters and relative humidity inside the cavity on the drying process. The proposed model accurately described the drying, allowing the further evaluation of the quality and safety aspects and optimizing the process.
Near-Infrared Spectroscopy as a Tool for the Traceability Control of High-Quality Iberian Dry-Cured Meat Products
Authors: Ortiz Alberto , León Lucía , Ramírez María Rosario , Tejerina David
Published: January 2025

Near-infrared spectroscopy (NIRS) was evaluated to trace the high hydrostatic pressure (HHP) processing and preservation temperature (4 °C vs. 20 °C) over the course of a long term in vacuum-packaged Iberian dry-cured tenderloin (Iliopsoas et psoas minor). Spectra were obtained from a total of 298 samples, without opening the package, using a handheld MicroNIRTM 1700 OnSite-W microspectrophotometer (908.1 nm–1676.2 nm) (VIAVI Solutions Inc., United States). The discriminant models were developed by means of partial least squares-discriminant analysis (PLS-DA). The models obtained were capable of correctly classifying more than 60% of the samples according to their HHP processing, while almost 100% of the samples were correctly classified according to the temperature at which the samples were preserved. Thus, NIRS could help to support the traceability of treatments that represent a high added value to the product, such as HHP in premium Iberian dry-cured products.
Some Results of R-Matrix Functions and Their Fractional Calculus
Authors: Zayed Mohra , Bakhet Ahmed
Published: January 2025

In this study, we explore various fractional integral properties of R-matrix functions using the Hilfer fractional derivative operator within the framework of fractional calculus. We introduce the θ integral operator and extend its definition to include the R matrix functions. The composition of Riemann–Liouville fractional integral and differential operators is determined using the θ-integral operator. Additionally, we investigate the compositional properties of θ-integral operators, and we establish their inversion, offering new insights into their structural and functional characteristics.
The Potential Role of Brassica napus Metallothioneins in Salt Stress and Interactions with Plant Growth-Promoting Bacteria
Authors: Mierek-Adamska Agnieszka , Tylman-Mojżeszek Wioleta , Pawełek Agnieszka , Kulasek Milena , Dąbrowska Grażyna B.
Published: January 2025

Background/Objectives: Plant metallothioneins (MTs) are low-molecular-weight proteins involved in heavy metal binding and response to stress conditions. This work aimed to analyse canola (Brassica napus L.) MTs (BnMT1-4) response to salinity and plant interaction with bacteria. Methods: (1) We tested germination and canola growth and development in the presence of sodium chloride and bacteria Serratia plymuthica; (2) We analysed phytohormones content using LC-MS/MS; (3) We identified in silico cis-regulatory elements in promoters of BnMT1-4 genes; and (4) we investigated BnMT1-4 genes’ expression in B. napus. Results: Under saline conditions, canola germination and plant growth were notably inhibited, whereas inoculation of seeds with S. plymuthica significantly stimulated the analysed physiological traits of B. napus. The content of auxin, abscisic acid, jasmonates, gibberellins, and salicylic acid in B. napus was significantly affected by salinity and modulated by S. plymuthica presence. The promoter regions of the BnMT1-4 genes contain numerous regulatory elements controlled by light, hormones, and various stresses. Interestingly, the expression of BnMT1-3 genes was down-regulated under salt stress, while BnMT4 transcript levels increased strongly at the highest salt concentrations with and without S. plymuthica present. Conclusions: The results show that BnMT genes are differently affected by salinity and bacteria S. plymuthica and significantly correlate with particular phytohormones content in canola tissues, confirming the diversified functions of MTs in plant responses to changing environment.
Impact of the COVID-19 Pandemic on Life Expectancy in South Korea, 2019–2022
Authors: Song Soojin , Lim Daroh
Published: January 2025

Objective: This study investigated changes in life expectancy due to the COVID-19 pandemic by analyzing the contributions of age, sex, and cause of death in 2019 and 2022. Methods: Korea’s simplified life table and cause-of-death statistics from 2019 to 2022 were used to assess mortality changes by age, sex, and cause of death during the pandemic. Joinpoint regression analysis was applied to detect trends, and the Arriaga decomposition method was used to quantify the contributions of age, sex, and cause of death to life expectancy changes. Results: Joinpoint regression identified a slow increase in life expectancy in 2007 and a decline in 2020, coinciding with the COVID-19 pandemic. Life expectancy decreased markedly for men (−0.36 years per year, 95%CI: −0.68 to −0.03) and women (−0.45 years per year, 95%CI: −0.71 to −0.18). Age-specific contributions revealed declines across age groups, with the steepest reductions in the older population (80 years or older: −0.35 years for men; −0.52 years for women). Women (−0.68 years) contributed more to the decline in life expectancy than men (−0.41 years). COVID-19 ranked as the third leading cause of death in 2022, significantly contributing to the decline in life expectancy among the older population (aged 80 years or older: −0.306 years for men, −0.408 years for women). Women in Korea were more affected than men, reducing the sex-specific gap in life expectancy by 0.3 years. Conclusions: The COVID-19 pandemic significantly impacted the life expectancy in Korea, particularly among older adults, with women experiencing a greater decline than men. These findings emphasize the need for targeted public health strategies to address age and sex disparities in future pandemics. Before the pandemic, non-communicable diseases such as malignant neoplasms, heart disease, and cerebrovascular disease dominated Korea’s top 10 causes of death. During the pandemic, however, COVID-19 rose to third place by 2022. Notably, intentional self-harm (suicide) contributed to an increase in life expectancy, suggesting shifts in the relative impact of various causes of death.
Identification and Characterization of New Hafnia Strains from Common Carp (Cyprinus carpio), Potentially Possessing Probiotic Properties and Plastic Biodegradation Capabilities
Authors: Dragacevic Luka , Tsibulskaya Darya , Kojic Milan , Rajic Nevenka , Niksic Aleksandar , Popovic Mina
Published: January 2025

Finding and characterizing new bacterial strains, including probiotic strains, is a crucial task in today’s world to expand the genetic data pool and identify new genes. In this study, we investigated the gut microbiota of one industrial species, Cyprinus carpio, and identified representatives of various microbial genera, including Citrobacter, Serratia, Bacillus, Enterococcus, and Kocuria. Notably, we discovered two strains of Hafnia with potentially probiotic properties. We conducted next-generation sequencing (NGS) of these strains, described their antibiotic resistance and antibacterial activity, and compared them with other representatives of the Hafnia genus. These strains, characterized by rapid growth, the presence of the ClpB heat shock protein gene, and genes associated with microplastic degradation, provide a promising basis for further research, including studies on their potential application in plastic biodegradation.
Genome-Wide Genetic Architecture for Common Scab (Streptomyces scabei L.) Resistance in Diploid Potatoes
Authors: Fofana Bourlaye , Soto-Cerda Braulio Jorge , Zaidi Mohsin , Main David , Fillmore Sherry
Published: January 2025

Most cultivated potato (Solanum tuberosum) varieties are highly susceptible to common scab (Streptomyces scabei). The disease is widespread in all major potato production areas and leads to high economic losses and food waste. Varietal resistance is seen as the most viable and sustainable long-term management strategy. However, resistant potato varieties are scarce, and their genetic architecture and resistance mechanisms are poorly understood. Moreover, diploid potato relatives to commercial potatoes remain to be fully explored. In the current study, a panel of 384 ethyl methane sulfonate (EMS)-mutagenized diploid potato clones were evaluated for common scab coverage, severity, and incidence traits under field conditions, and genome-wide association studies (GWASs) were conducted to dissect the genetic architecture of their traits. Using the GAPIT-MLM and RTM-GWAS statistical models, and Mann–Whitney non-parametric U-tests, we show that 58 QTNs/QTLs distributed on all 12 potato chromosomes were associated with common scab resistance, 52 of which had significant allelic effects on the three traits. In total, 38 of the 52 favorable QTNs/QTLs were found to be pleiotropic on at least two of the traits, while 14 were unique to a single trait and were found distributed over 3 chromosomes. The identified QTNs/QTLs showed low to high effects, highlighting the quantitative and multigenic inheritance of common scab resistance. The QTLs/QTNs associated with the three common scab traits were found to be co-located in genomic regions carrying 79 candidate genes playing roles in plant defense, cell wall component biosynthesis and modification, plant–pathogen interactions, and hormone signaling. A total of 61 potato clones were found to be tolerant or resistant to common scab. Taken together, the data show that the studied germplasm panel, the identified QTNs/QTLs, and the candidate genes are prime genetic resources for breeders and biologists in breeding and targeted gene editing.
Integrated Computational Analysis Reveals Early Genetic and Epigenetic AML Susceptibility Biomarkers in Benzene-Exposed Workers
Authors: Vivarelli Silvia , Sevim Cigdem , Giambò Federica , Fenga Concettina
Published: January 2025

Benzene, a well-known carcinogenic airborne pollutant, poses significant health risks, particularly in industries such as petroleum, shoemaking, and painting. Despite strict regulations, chronic occupational exposure persists, contributing to the onset of acute myeloid leukemia (AML) and other malignancies. Benzene’s carcinogenicity stems from its metabolic activation, leading to increased oxidative stress, DNA damage, and cancer transformation. While its toxicity is well-documented, the link between genetic and epigenetic alterations and cancer susceptibility in exposed workers remains underexplored. This study aims to identify early biomarkers of benzene exposure and AML risk by analyzing gene expression and DNA methylation datasets from GEO DataSets, integrated with molecular pathway analyses, as well as miRNA-target and protein-protein network evaluations. This multi-approach led to the identification of nine deregulated genes (CRK, CXCR6, GSPT1, KPNA1, MECP2, MELTF, NFKB1, TBC1D7, ZNF331) in workers exposed to benzene, with NFKB1 showing strong discriminatory potential. Also, dose-dependent DNA methylation changes were observed in CXCR6 and MELTF, while selected miRNAs such as let-7d-5p, miR-126-3p, and miR-361-5p emerged as key post-transcriptional regulators. Furthermore, functional enrichment linked these genes to immune response, inflammation, cell proliferation, and apoptosis pathways. While network analyses highlighted NFKB1, CRK, and CXCR6 as central to benzene-associated leukemogenesis. Altogether, these findings provide novel insights into an early biomarker fingerprint for benzene exposure and AML susceptibility, supporting the future development of biomolecular-based targeted occupational health monitoring and personalized preventive strategies for at-risk workers.
Integrating Machine Learning with MALDI-TOF Mass Spectrometry for Rapid and Accurate Antimicrobial Resistance Detection in Clinical Pathogens
Authors: López-Cortés Xaviera A. , Manríquez-Troncoso José M. , Sepúlveda Alejandra Yáñez , Soto Patricio Suazo
Published: January 2025

Antimicrobial resistance (AMR) is one of the most pressing public health challenges of the 21st century. This study aims to evaluate the efficacy of mass spectral data generated by VITEK® MS instruments for predicting antibiotic resistance in Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae using machine learning algorithms. Additionally, the potential of pre-trained models was assessed through transfer learning analysis. A dataset comprising 2229 mass spectra was collected, and classification algorithms, including Support Vector Machines, Random Forest, Logistic Regression, and CatBoost, were applied to predict resistance. CatBoost demonstrated a clear advantage over the other models, effectively handling complex non-linear relationships within the spectra and achieving an AUROC of 0.91 and an F1 score of 0.78 for E. coli. In contrast, transfer learning yielded suboptimal results. These findings highlight the potential of gradient-boosting techniques to enhance resistance prediction, particularly with data from less conventional platforms like VITEK® MS. Furthermore, the identification of specific biomarkers using SHAP values indicates promising potential for clinical applications in early diagnosis. Future efforts focused on standardizing data and refining algorithms could expand the utility of these approaches across diverse clinical environments, supporting the global fight against AMR.
Mutanobactin-D, a Streptococcus mutans Non-Ribosomal Cyclic Lipopeptide, Induces Osteogenic/Odontogenic Differentiation of Human Dental Pulp Stem Cells and Human Bone Marrow Stem Cells
Authors: Nikolic Sandra , Alastra Giuseppe , Pultar Felix , Lüthy Lukas , Stadlinger Bernd , Carreira Erick M. , Bugueno Isaac Maximiliano , Mitsiadis Thimios A.
Published: January 2025

Bacterium-triggered carious lesions implicate dental hard tissue destruction and the simultaneous initiation of regenerative events comprising dental stem cell activation. Streptococcus mutans (S. mutans) is a prominent pathogen of the oral cavity and the principal cause of caries. S. mutans generates complex products involved in interbacterial interactions, including Mutanobactin-D (Mub-D), which belongs to a group of non-ribosomal cyclic lipopeptides. In the present study, we aimed to analyse the potential role of the synthetic Mub-D peptide in cell populations involved in tissue regenerative processes. To this end, we assessed the in vitro effects of Mub-D in human dental pulp stem cells (hDPSCs) and human bone marrow stem cells (hBMSCs). Our data demonstrated a concentration-dependent effect of Mub-D on their viability and a significant increase in their proliferation and osteogenic/odontogenic differentiation. These events were associated with specific changes in gene expression, where CCDN-1, RUNX-2, OSX, OCN, DMP-1, DSPP, and BMP-2 genes were upregulated. The ability of Mub-D to modulate the osteogenic/odontogenic differentiation of both hDPSCs and hBMSCs and considerably enhance mineralisation in a controlled and concentration-dependent manner opens new perspectives for stem cell-based regenerative approaches in the clinics.
Normothermic Machine Perfusion in Orphan Liver Graft Viability Assessment
Authors: Morawski Marcin , Zhylko Andriy , Kubiszewski Hubert , Rochoń Jakub , Rykowski Paweł , Staszewski Mikołaj , Krasnodębski Maciej , Figiel Wojciech , Krawczyk Marek , Grąt Michał
Published: January 2025

Background: Liver transplantation constitutes a well-established treatment for patients with end-stage liver disease and selected hepatic malignancies. The introduction of normothermic machine perfusion (NMP) offers a platform for both extracorporeal organ maintenance and viability assessment, especially for organs with suspicious malfunction. These organs, discarded by the majority of transplant centers (so-called ‘orphan livers’), may help to safely expand the donor pool thanks to pre-transplant appraisal; Methods: We identified all grafts undergoing normothermic ma-chine perfusions performed in the Department of General, Transplant, and Liver Surgery between December 2022 and August 2023. Their perfusion characteristics and immediate postoperative periods, as well as complications that occurred in the 90-day postoperative periods, were analyzed; Results: There were eight orphan liver grafts that underwent NMP in our Department. Postoperative complications occurring in patients receiving grafts after NMP did not seem associated with the procedure. One patient required laparotomy within the 90-day postoperative period due to biliary fistula and underwent bile duct stenting due to both fistula and nonanastomotic stricture. In one patient we observed the occurrence of anastomotic biliary stricture more than 90 days after LTx; Conclusions: NMP allows for the viability assessment of grafts with suspicious prepreservation malfunction. Some of these organs may help to expand the donor pool.
A New Formula Consisting of the Initial Independent Predictors of All-Cause Mortality Derived from a Single-Centre Cohort of Antineutrophil Cytoplasmic Antibody-Associated Vasculitis
Authors: Park Pil Gyu , Yoon Jiyeol , Park Yong-Beom , Lee Sang-Won
Published: January 2025

Objective: In this study, we develop a new formula for predicting all-cause mortality in an ethnicity/region-specific cohort of antineutrophil cytoplasmic antibody-associated vasculitis (AAV). Methods: We included 290 Korean patients with AAV in this study and retrospectively reviewed their medical records regarding clinical data at diagnosis and during follow-up. We introduce a new index, called the NFPM value after the initials of New Formula for Predicting Mortality, which we derived using the independent predictors of all-cause mortality obtained in the multivariable Cox proportional hazard analysis. The cut-offs of the parameters for mortality were determined using the highest or lowest tertile of each parameter according to its positive or negative association with all-cause mortality, respectively. Results: The median age was 60.0 years and 35.9% were male patients. Of the 290 patients, 39 died during follow-up (13.4%). In the multivariable Cox analysis, male sex, the five-factor score (FFS), and serum albumin were independent predictors of all-cause mortality. A new formula was developed as follows: NFPM = male sex (yes = 1 or no = 0) + FFS ≥ 2.0 (yes = 1 or no = 0) + serum albumin ≤ 3.2 mg/dL (yes = 1 or no = 0). We demonstrated that patients with a NFPM value ≥ 2 seemed to have an increased risk for all-cause mortality compared to those with a NFPM value < 2. Conclusions: This study demonstrated that it could be clinically useful and significant to develop a new formula to predict all-cause mortality using independent predictors in each different ethnicity/region-specific cohort of AAV.
Gastroenteropancreatic Neuroendocrine Neoplasms and Celiac Disease: Rare or Neglected Association?
Authors: Pes Luca , La Salvia Anna , Pes Giovanni Mario , Dore Maria Pina , Fanciulli Giuseppe
Published: January 2025

Background: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are rare tumors originating from neuroendocrine cells in the gastroenteropancreatic system. They are increasingly recognized as being potentially associated with chronic intestinal inflammatory conditions, namely Crohn’s disease and ulcerative colitis. Celiac disease (CD) is an immune-mediated chronic gastrointestinal inflammation triggered by gluten in genetically predisposed individuals. This study aimed to explore the relationship between GEP-NENs and CD, providing a detailed review of the existing literature and addressing the (possible) gaps in current knowledge. Methods: We conducted an extensive search of international databases using relevant keywords, with the last update on 1 November 2024. A total of 19 studies, published between 1983 and 2024, were included: two prospective studies, five retrospective studies, and 12 case reports. Results: Overall, we included 107 GEP-NENs in our analysis. Among the 94 GEP-NENs identified in prospective and retrospective studies, the small intestine was the most common site (88.3%). The small intestine was also the most frequently reported site in the case report series (46.2%), accounting for 13 GEP-NENs in 12 patients with CD. Conclusions: Although most studies on the association between CD and GEP-NENs are heterogeneous, and while some lack crucial data, emerging evidence suggests that screening GEP-NEN patients for CD could offer valuable insights. Testing for the presence of CD might reveal whether the observed association is more than coincidental and possibly pave the way for exploring and understanding the role of chronic inflammation in the tumorigenesis of GEP-NENs in CD.
Impact of Obesity on Pubertal Timing and Male Fertility
Authors: Calcaterra Valeria , Tiranini Lara , Magenes Vittoria Carlotta , Rossi Virginia , Cucinella Laura , Nappi Rossella Elena , Zuccotti Gianvincenzo
Published: January 2025

Childhood obesity has profound effects on puberty in boys and girls, altering its timing, progression, and associated hormonal changes. Also, later male fertility could be impaired by childhood and pubertal obesity in light of the impact of inflammatory markers on semen quality. The aim of this narrative review is to explore the intricate relationship between childhood obesity and its impact on pubertal development and fertility, with a specific focus on boys. Such a relationship between obesity and pubertal timing in males is highly influenced by metabolic, hormonal, genetic, epigenetic, and environmental factors. While many studies suggest that obesity accelerates pubertal onset in boys, some studies do not confirm these findings, especially in cases of severe obesity. In fact, delayed puberty has also been reported in certain instances. Obesity influences fertility through different central and peripheral processes, including an altered endocrine milieu, inflammatory environment, and epigenetic modifications that alter semen quality and vitality, leading to subfertility or infertility. The early identification and management of potential issues associated with obesity are crucial for ensuring optimal reproductive health in adulthood. Further research is essential to clarify these associations and to develop targeted interventions aimed at preventing the negative health outcomes associated with obesity-related disruptions in puberty and fertility.
Efficacy of Tocopherol vs. Chlorhexidine in the Management of Oral Biopsy Site: A Randomized Clinical Trial
Authors: Baldin Arianna , Nucibella Clara , Manera Claudia , Bacci Christian
Published: January 2025

Background/Objectives: Chlorhexidine digluconate (CHX) is widely regarded as the gold standard for oral mucosa antiseptic treatments but has been associated with delayed healing, scar formation, microbiome alterations, and fibroblast toxicity. Tocopherol, with its ability to accelerate tissue healing and minimal side effects, has emerged as a potential alternative. This randomized clinical trial aimed to compare the efficacy of topical tocopherol acetate and 0.2% chlorhexidine in managing postoperative pain and wound healing following oral cavity biopsies. Methods: Seventy-seven patients undergoing oral biopsies were divided into two groups: the test group (tocopherol acetate) and the control group (0.2% chlorhexidine). Pain was assessed using VAS (Visual Analogue Scale) scores on days 1 and 6 postoperatively, and wound healing was evaluated through measurements of the biopsy site’s height and width from standardized photographs analyzed with ImageJ. Painkiller use was also documented. The study followed CONSORT (Consolidated Standards of Reporting Trials) guidelines, with ethical approval from the Padua Ethics Committee and registration on ISRCTN. Results: No significant differences were found between the groups in VAS scores, wound dimensions, or painkiller use (p > 0.05). However, significant pain reduction within each group was observed (p < 0.0001). Conclusions: Tocopherol acetate showed comparable efficacy to chlorhexidine, suggesting it could be a viable alternative for postoperative care in oral surgery.
Assessment of the Efficacy and Safety of a Dual-Wavelength Diode Laser System for the Treatment of Vulvovaginal Atrophy in Women Without a History of Breast Cancer and in Patients with a History of Breast Cancer
Authors: Perrini Gaetano , Actis Silvia , Giorgi Margherita , Accomasso Francesca , Minella Carola , Fava Cristina , Bisconte Giorgia , De Rosa Giovanni , Ferrero Annamaria , Bounous Valentina Elisabetta
Published: January 2025

Background/Objectives: Vaginal laser therapy is a promising treatment for menopausal vulvovaginal atrophy (VVA). This study evaluates the efficacy of a dual-wavelength diode laser (980 + 1470 nm) in treating VVA. Methods: Thirty postmenopausal patients with moderate-to-severe VVA were recruited, and twenty-nine completed the study. Patients underwent a screening visit (T0); three laser sessions at 4-week intervals (T1, T2, and T3); and a follow-up visit 4 weeks after the last treatment (T4). At T0 and T4, the Schiller test and Vaginal Maturation Index (VMI) were performed; sexual function was assessed through the Female Sexual Function Index (FSFI) and the Female Sexual Distress Scale-Revised (FSDS-R). At each visit, the Vaginal Health Index (VHI) and the Visual Analog Scale (VAS) for dyspareunia were administered. Potential side effects were investigated, and the VAS for the pain associated with the procedure was assessed. Data analysis included the overall group and two subgroups: women with (group A) and without (group B) a history of breast cancer (BC). Results: Significant improvements in the VHI and reduced dyspareunia were observed at T4 compared to T0 in all groups. The improvement was already seen after the first procedure, with further improvement after the other procedures, being persistent at the 1-month follow-up. The Schiller test showed significant improvements from T0 to T4 in all groups. The VMI showed a significant improvement from T0 to T4 in the overall group and group B. The FSFI questionnaires showed a significant improvement in all areas for the whole population, whereas the FDSF-R questionnaire showed an improvement only in the overall group. Procedural pain was low (mean VAS 1.6), and no side effects were reported. Conclusions: The dual-wavelength diode laser is an effective and safe option for the treatment of VVA in patients with and without a history of BC.
Clinical, Electrocardiographic and Echocardiographic Predictors of Atrial Fibrillation Recurrence After Pulmonary Vein Isolation
Authors: Karanikola Aikaterini-Eleftheria , Tzortzi Melpomeni , Kordalis Athanasios , Doundoulakis Ioannis , Antoniou Christos-Konstantinos , Laina Ageliki , Tsioufis Panagiotis , Argyriou Nikos , Sakalidis Athanasios , Pamporis Konstantinos , Tsioufis Konstantinos , Tsiachris Dimitrios
Published: January 2025

Atrial fibrillation (AF) is a supraventricular arrhythmia and the most common heart rhythm disorder in the adult population worldwide with an estimated prevalence of 2% to 4% of the population. Cases of AF have shown an increasing trend in recent decades, while its frequency is expected to rise even more. Given the significant impact on patients’ quality of life, as well as its major complications, including thromboembolic events, effective rhythm control strategies other than antiarrhythmic medication have emerged, with catheter ablation (CA) being the cornerstone of these. In recent years, CA has been upgraded to a first-line treatment for selected patients. However, complications do exist and arrhythmia-free survival is not always guaranteed. The need to better identify patients more suitable for this specific therapeutic measure is crucial in improving outcomes and preventing arrhythmia recurrences. This review aims to present currently identified predictors of AF recurrence after catheter ablation based on clinical characteristics and electrocardiographic and echocardiographic parameters, in an era of increasing interventional rhythm control approaches for the management of atrial fibrillation.
Interrelationships Between Plasma Levels of Brain Natriuretic Peptide and Prolonged Symptoms Due to Long COVID
Authors: Masuda Yohei , Otsuka Yuki , Tokumasu Kazuki , Honda Hiroyuki , Sakurada Yasue , Matsuda Yui , Nakano Yasuhiro , Takase Ryosuke , Omura Daisuke , Hasegawa Toru , Ueda Keigo , Otsuka Fumio
Published: January 2025

Objectives: Evidence for the usefulness of biomarkers that aid in diagnosis, assessment of severity, and prediction of prognosis in patients with long COVID is limited. The aim of this study was to clarify the characteristics of brain natriuretic peptide (BNP) in long COVID. Methods: We conducted a retrospective observational study of patients who visited the COVID-19 aftercare outpatient clinic at Okayama University Hospital from February 2021 to April 2024. Results: A total of 428 patients were enrolled in this study, and the patients were divided into a group with normal BNP (n = 314, ≤18.4 pg/mL) and a group with increased BNP (n = 114, >18.4 pg/mL). The long COVID group with increased BNP had a higher proportion of females (44.3% vs. 73.7%, p < 0.01) and an older median age (38 vs. 51 years, p < 0.01). Fatigue and brain fog were commonly manifested in both groups, while dyspnea was a more frequent complaint in the group with increased BNP. Various symptoms including fatigue, palpitations, and taste and/or olfactory disorders were associated with elevated BNP (23 to 24 pg/mL). Memory impairment was also linked to higher BNP (OR: 2.36, p = 0.05). In long COVID patients, plasma BNP elevation appears to be more pronounced in females and is often related to cardiogenic factors, in which inflammatory responses are also involved. Conclusions: Plasma BNP measurement may be useful for evaluating the severity of long COVID, especially in female patients and those with respiratory symptoms and/or memory impairment.
Finite Element Analysis of Evolut Transcatheter Heart Valves: Effects of Aortic Geometries and Valve Sizes on Post-TAVI Wall Stresses and Deformations
Authors: Mutlu Onur , Mazhar Noaman , Saribay Murat , Yavuz Mehmet Metin , Ozturk Deniz , Ghareeb Abdel Naser , Alnabti Abdulrahman , Yalcin Huseyin Cagatay
Published: January 2025

Background/Objectives: For transcatheter aortic valve implantation (TAVI) therapy, a catheter-guided crimped valve is deployed into the aortic root. Valve types such as Edwards balloon-expandable valves and Medtronic self-expandable valves come in different sizes and are chosen based on patient-specific aortic anatomy, including aortic root diameter measurement. Complications may arise due to variations in anatomical characteristics and the implantation procedure, making pre-implantation assessment important for predicting complications. Methods: Computational modeling, particularly finite element analysis (FEA), has become popular for assessing wall stresses and deformations in TAVI. In this study, a finite element model including the aorta, native leaflets, and TAVI device was used to simulate procedures and assess patient-specific wall stresses and deformations. Results: Using the Medtronic Evolut R valve, we simulated TAVI for 14 patients to analyze the effects of geometrical variations on structural stresses. Virtual TAVIs with different valve sizes were also simulated to study the influence of TAV size on stresses. Our results show that variations in aortic wall geometries and TAV sizes significantly influence wall stresses and deformations. Conclusions: Our study is one of the first comprehensive FEA investigations of aortic geometrical variations and valve sizes on post-TAVI stresses, demonstrating the non-linear relationship between aortic dimensions, TAV sizes, and wall stresses.
A Novel Pathogenic Variant in the KRT3 Gene in a Family with Meesmann Corneal Dystrophy
Authors: De Faria Alix , Charoenrook Víctor , Larena Raquel , Ferragut-Alegre Álvaro , Valero Rebeca , Julio Gemma , Barraquer Rafael I.
Published: January 2025

Background/Objectives: to report a novel KRT3 Meesmann corneal dystrophy (MECD) mutation and its clinical findings in a Spanish family, thus completing the international database. Case series study. Methods: Two generations of three family members were studied. The clinical ophthalmologic evaluation was made including best-corrected visual acuity (BCVA), biomicroscopy with and without fluorescein, fundoscopy, Schirmer test I, non-invasive break-up time (NiBUT), and esthesiometry. In vivo confocal microscopy (IVCM), anterior segment optical coherence tomography (AS-OCT) with an epithelial map, and genetic analysis were also performed. Results: A novel heterozygous mutation in the KRT3 gene c.1527G>T (p. Glu509Asp) was identified. Biomicroscopy revealed bilateral multiple corneal intraepithelial cysts. IVCM showed numerous and relatively small microcysts (12–32 µm), hyperreflective materials, subepithelial nerve and Bowman’s layer alterations. AS-OCT scan revealed diffuse hyperreflectivity and the epithelial map displayed thickening of the corneal epithelium in the interpalpebral zone (proband: 52–68 µm and father’s proband: 55–71 µm) with a slightly thinned cornea. Conclusions: We identified a new mutation in the KRT3 gene–c.1527G>T (p. Glu509Asp) in a Spanish family with MECD. A comprehensive characterization of the clinical signs, using different techniques, especially an epithelial map, could be useful to diagnose and monitor epithelial changes by quantitative measures. Epithelial map changes provide better understanding of MECD differential epithelial behavior and its progression changes. Larger studies will be necessary to better understand these specific patterns and clinically evaluate new therapies.
Autoimmune Thrombocytopenia in Pregnancy: Insights from an Uncommon Case Presentation and Mini-Review
Authors: Malutan Andrei Mihai , Pascu Oana Teodora , Diculescu Doru , Ciortea Razvan , Blaga Ligia , Nicula Renata , Bucuri Carmen , Roman Maria , Nati Ionel , Ormindean Cristina Mihaela , Suciu Viorela , Mihu Dan
Published: January 2025

Thrombocytopenia, defined as a platelet count below 150 × 109/L, is the second most common hematological abnormality after anemia found among European women in the third trimester of pregnancy. Most of the cases are mild, asymptomatic, and diagnosed accidentally. The primary causes of thrombocytopenia are linked to the pregnancy itself and include gestational thrombocytopenia (GT), autoimmune thrombocytopenia (ITP), and pre-eclampsia or HELLP syndrome-associated thrombocytopenia. First-line therapies for ITP include corticosteroids and intravenous immunoglobulin (IVIG). We came across a case of severe thrombocytopenia (platelet count of 9 × 109/L) associated with severe anemia (Hb 5.9 g/dL) at 30 weeks of gestation, with no personal or family history of bleeding disorders. A comprehensive hematologic, infectious, and rheumatological workup was performed to narrow the diagnosis. Despite aggressive corticosteroid therapy and immunoglobulin treatment, the patient’s thrombocytopenia persisted, imposing delivery at 34 weeks. This article highlights the complex presentation and management of severe thrombocytopenia and anemia during pregnancy.
Mechanical Properties and Vibrational Behavior of 3D-Printed Carbon Fiber-Reinforced Polyphenylene Sulfide and Polyamide-6 Composites with Different Infill Types
Authors: Papageorgiou Vasileios , Tsongas Konstantinos , Mansour Michel Theodor , Tzetzis Dimitrios , Mansour Gabriel
Published: January 2025

The aim of the present study is to investigate the performance of two carbon fiber-reinforced composite polymers used to manufacture end-use parts via the fused filament fabrication (FFF) method. The materials under investigation were carbon fiber-reinforced Polyamide-6 (PA6-CF15) and carbon fiber-reinforced polyphenylene sulfide (PPS-CF15). To evaluate their mechanical properties and vibrational behavior, specimens were fabricated with four distinct infill patterns: grid, gyroid, triangle and hexagon. In particular, the vibrational behavior of the 3D-printed composites was determined by conducting cyclic compression testing, as well as modal tests. Additionally, the mechanical behavior of the reinforced polymers was determined by conducting both uniaxial tensile and compression tests, as well as three-point bending tests. The results of the mechanical experiments revealed that the grid pattern exhibited the best overall performance, while the gyroid pattern exhibited the greatest strength-to-weight ratio, making it the most durable infill for use with composite filaments. In vibration experiments, PA6-CF15 structures exhibited higher damping ratios than PPS-CF15, indicating superior damping capacity. Among the infill patterns, the hexagon pattern provided the greatest vibration isolation performance.
MaPac2, a Transcriptional Regulator, Is Involved in Conidiation, Stress Tolerances and Pathogenicity in Metarhizium acridum
Authors: Hu Xiaobin , Li Baicheng , Li Yan , Xia Yuxian , Jin Kai
Published: January 2025

The Gti1/Pac2 protein family, which is highly conserved across fungi, is pivotal in processes such as fungal development, spore formation, protein export, toxin production, and virulence. Despite its importance, the precise functions of Pac2 within entomopathogenic fungi have yet to be fully understood. In our study, the MaPac2 gene from M. acridum was identified, and its functions were explored. Studying the domain of the protein showed that MaPac2 comprises 422 amino acids with a characteristic Gti1/Pac2 family domain (Pfam09729). Additionally, MaPac2 is predicted to have an N-terminal protein kinase A phosphorylation site and a potential cyclin-dependent kinase phosphorylation site, highlighting its potential regulatory roles in the fungus. Our findings indicate that the inactivation of MaPac2 resulted in faster germination of conidia and a marked reduction in conidial production. Furthermore, stress tolerance tests revealed that the absence of MaPac2 significantly bolstered the fungal resilience to UV-B radiation, heat shock, SDS exposure, and stresses induced by hyperosmotic conditions and oxidative challenges. Virulence assessments through bioassays indicated no substantial differences among the WT, MaPac2-disrupted strain, and CP strains in the topical inoculation trials. Interestingly, deletion of MaPac2 increased the fungal virulence by intrahemocoel injection. Furthermore, we found that disruption of MaPac2 impaired fungal cuticle penetration due to the diminished appressorium formation but increased the fungal growth in locust hemolymph. These findings provide further insights into the roles played by Gti1/Pac2 in insect pathogenic fungi.
Integrin β2 Plays a Significant Role in Therapeutic Angiogenesis Through Hematopoietic Stem Cell Transplantation
Authors: Saino Orie , Ogawa Yuko , Yasui Kazuta , Fuchizaki Akihiro , Akamatsu Rie , Irie Yoriko , Tanaka Mitsunobu , Kimura Takafumi , Taguchi Akihiko
Published: January 2025

The efficacy of hematopoietic stem cell (HSC) therapy for cerebral infarction has been previously demonstrated. However, the lack of response in some patients has hindered its widespread use. To establish HSC therapy as a standard treatment, it is important to examine the causes of non-responsiveness. In this study, we aimed to identify the specifications of transplanted cells based on their therapeutic mechanisms to predict treatment success. We found that HSC therapy activates injured cerebral endothelial cells via gap junctions because cell adhesion between HSCs and the endothelium plays an essential role in cellular communication via gap junctions. The expression of the adhesion molecule integrin β2 (CD18) in CD34-positive (CD34+) cells was identified as critical for the therapeutic effect on cerebral infarction in a murine model. Cells with low CD18 expression exhibited a weaker therapeutic effect than cells with high CD18 expression, even when the same number of HSCs was administered. The expression of CD18 in CD34+ cells can be used as a specification marker for transplanted HSCs and is useful for identifying non-responders. Furthermore, quantification of CD18 expression is crucial for evaluating the cellular potential of cell-based therapies for diseases where therapeutic effects are mediated through cell adhesion.
A First-Principles Calculation Study of the Catalytic Properties of Two-Dimensional Bismuthene Materials for Carbon Dioxide Reduction
Authors: Wang Chang-Tian , Yue Qinchi , Wang Changhao , Xu Yuanji , Zhou Chang
Published: January 2025

The electrochemical reduction of carbon dioxide (CO2) at room temperature into industrial chemicals and energy products offers a promising strategy to mitigate atmospheric greenhouse gas emissions. In this study, bismuthene was employed as a catalyst for CO2 reduction reaction (CO2RR). Through first-principles calculations, we evaluated the CO2RR catalytic activities of bismuth (Bi) on the (001) and (012) surfaces, analyzing the mechanisms underlying these activities. Surface energy calculations for monolayer and multilayer bismuthene confirmed that monolayer bismuthene is stable and suitable for catalytic applications. Adsorption free energies of intermediates showed that formic acid is the primary product. Furthermore, it is found that the Bi(012) surface has a lower free energy barrier than Bi(001) in the CO2RR process, representing the higher catalytic activity. These results provide theoretical insights for designing bismuthene-based CO2RR catalysts with reduced overpotential, improved efficiency and enhanced selectivity, particularly enhancing catalyst selectivity.
Nanosecond Laser Processing of Titanium in Organic Liquids as a Method for Obtaining Titanium Carbide Coatings
Authors: Nikov Rosen , Nedyalkov Nikolay , Valkov Stefan , Koutzarova Tatyana , Aleksandrov Lyubomir , Atanasova Genoveva , Grochowska Katarzyna
Published: January 2025

This work presents results on nanosecond laser ablation of a titanium (Ti) plate immersed in a liquid medium using the fundamental wavelength (1064 nm) of a nanosecond Nd:YAG laser system. The laser radiation was focused on the target surface as scanning was accomplished by an XY translation stage. The laser processing of the Ti targets took place in two organic liquids—liquid paraffin and diesel oil. The morphology of the structured surfaces and the structure and phase composition of the samples were studied; their dependences on the processing parameters are discussed. With both liquid media used, crack formation on the surface of the laser-treated Ti target was observed. Formation of a titanium carbide (TiC) phase was found whose properties could be tuned by varying the laser irradiation parameters. Raman measurements were utilized to analyze the carbon structure formed in the resulting coatings. The results of surface electron microscopy reveal that the thickness of the resulting coatings reached 20 µm. Some of the obtained coatings demonstrated about three times higher hardness compared to the native Ti sample. The technique proposed can be used in surface modification of materials in view of improving their mechanical properties.
Wear and Plasticity in Railway Turnout Crossings: A Fast Semi-Physical Model to Replace FE Simulations
Authors: Davoodi Jooneghani Hamed , Sazgetdinov Kamil , Meierhofer Alexander , Scheriau Stephan , Ossberger Uwe , Müller Gabor , Six Klaus
Published: January 2025

Severe changes in the profiles of the crossing nose are caused by large dynamic contact forces. To predict these forces as well as the profile evolution, the Whole System Model (WSM) was developed. However, it uses computationally expensive FE simulations. As a replacement, the semi-physical plasticity and wear model (SPPW) has been developed, thus majorly enhancing the overall performance of the WSM. The SPPW considers the influence of wear, plasticity, and wheel-profile-related effects. Its results have shown an overall good correlation with FE results, laboratory data for different materials, and field data from a real crossing. Due to the semi-physical nature of the model, the required computational time for the predictions was significantly reduced compared to FE simulations: minutes instead of weeks. The SPPW will be useful for time-efficient rail damage prediction, like wear and plastic deformation, and, as part of the WSM, contribute to a fast holistic track damage prognosis.