The 2023 MDPI Annual Report has
been released!
 
13 pages, 1244 KiB  
Review
Cardioembolic Stroke: Past Advancements, Current Challenges, and Future Directions
by Yuji Kato, Kenta Tsutsui, Shintaro Nakano, Takeshi Hayashi and Satoshi Suda
Int. J. Mol. Sci. 2024, 25(11), 5777; https://doi.org/10.3390/ijms25115777 (registering DOI) - 26 May 2024
Abstract
Cardioembolic stroke accounts for over 20% of ischemic strokes and is associated with worse outcomes than other types of strokes. Atrial fibrillation (AF) is the most common risk factor for cardioembolic stroke. In this narrative review, we present an update about cardioembolic stroke [...] Read more.
Cardioembolic stroke accounts for over 20% of ischemic strokes and is associated with worse outcomes than other types of strokes. Atrial fibrillation (AF) is the most common risk factor for cardioembolic stroke. In this narrative review, we present an update about cardioembolic stroke mainly related to AF and atrial cardiopathy. Direct oral anticoagulants (DOACs) have revolutionized stroke prevention in patients with AF; however, their efficacy in preventing recurrent embolic stroke of unknown source remains uncertain. Various cardiac monitoring methods are used to detect AF, which is crucial for preventing stroke recurrence. DOACs are preferred over warfarin for AF-related stroke prevention; however, the timing of initiation after acute ischemic stroke is debated. Resuming anticoagulation after intracerebral hemorrhage in AF patients requires careful assessment of the risks. While catheter ablation may reduce the incidence of cardiovascular events, its effect on stroke prevention is unclear, especially in heart failure patients. Atrial cardiopathy is the emerging cause of embolic stroke of unknown source, which indicates atrial structural and functional disorders that can precede AF. Future research should focus on refining stroke risk prediction models, optimizing AF detection, understanding the roles of ablation and anticoagulation in stroke prevention, and establishing atrial cardiopathy as a therapeutic target, which could significantly reduce the burden of stroke. Full article
(This article belongs to the Special Issue Heart-Brain Interaction: Atrial Fibrillation and Stroke)
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13 pages, 2370 KiB  
Article
Unlocking the Genetic Identity of Endangered Paphiopedilum Orchids: A DNA Barcoding Approach
by Małgorzata Karbarz, Dominika Szlachcikowska, Angelika Zapał and Agnieszka Leśko
Genes 2024, 15(6), 689; https://doi.org/10.3390/genes15060689 (registering DOI) - 26 May 2024
Abstract
Orchids of the genus Paphiopedilum, also called slippers, are among the most valued representatives of the Orchidaceae family due to their aesthetic qualities. Due to overexploitation, deforestation, and illegal trade in these plants, especially in the vegetative phase, Paphiopedilum requires special protection. This [...] Read more.
Orchids of the genus Paphiopedilum, also called slippers, are among the most valued representatives of the Orchidaceae family due to their aesthetic qualities. Due to overexploitation, deforestation, and illegal trade in these plants, especially in the vegetative phase, Paphiopedilum requires special protection. This genus is listed in Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora. Their precise identification is of great importance for the preservation of genetic resources and biodiversity of the orchid family (Orchidaceae). Therefore, the main objective of the study was to investigate the usefulness of the DNA barcoding technique for the identification of endangered orchids of the genus Paphiopedilum and to determine the effectiveness of five loci: matK, rbcL, ITS2, atpF-atpH and trnH-psbA as potential molecular markers for species of this genus. Among single locus barcodes, matK was the most effective at identifying species (64%). Furthermore, matK, ITS2, matK + rbcL, and matK + trnH-psbA barcodes can be successfully used as a complementary tool to identify Paphiopedilum orchids while supporting morphological data provided by taxonomists. Full article
(This article belongs to the Section Plant Genetics and Genomics)
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22 pages, 5741 KiB  
Article
Structural Features Influencing the Bioactive Conformation of Angiotensin II and Angiotensin A: Relationship between Receptor Desensitization, Addiction, and the Blood–Brain Barrier
by Graham J. Moore, Harry Ridway, Laura Kate Gadanec, Vasso Apostolopoulos, Anthony Zulli, Jordan Swiderski, Konstantinos Kelaidonis, Veroniki P. Vidali, Minos-Timotheos Matsoukas, Christos T. Chasapis and John M. Matsoukas
Int. J. Mol. Sci. 2024, 25(11), 5779; https://doi.org/10.3390/ijms25115779 (registering DOI) - 26 May 2024
Abstract
The N-terminal portion of the octapeptide angiotensin II (DRVYIHPF; AngII), a vasopressor peptide that favorably binds to, and activates, AngII type 1 receptor (AT1R), has an important role in maintaining bioactive conformation. It involves all three charged groups, namely (i) the [...] Read more.
The N-terminal portion of the octapeptide angiotensin II (DRVYIHPF; AngII), a vasopressor peptide that favorably binds to, and activates, AngII type 1 receptor (AT1R), has an important role in maintaining bioactive conformation. It involves all three charged groups, namely (i) the N-terminal amino group cation, (ii) the Asp sidechain anion and (iii) the Arg guanidino cation. Neutralization of any one of these three charged groups results in a substantial reduction (<5%) in bioactivity, implicating a specialized function for this cluster. In contrast, angiotensin A (ARVYIHPF; AngA) has reduced bioactivity at AT1R; however, replacement of Asp in AngII with sarcosine (N-methyl-glycine) not only restores bioactivity but increases the activity of agonist, antagonist, and inverse agonist analogues. A bend produced at the N-terminus by the introduction of the secondary amino acid sarcosine is thought to realign the functional groups that chaperone the C-terminal portion of AngII, allowing transfer of the negative charge originating at the C-terminus to be transferred to the Tyr hydroxyl-forming tyrosinate anion, which is required to activate the receptor and desensitizes the receptor (tachyphylaxis). Peptide (sarilesin) and nonpeptide (sartans) moieties, which are long-acting inverse agonists, appear to desensitize the receptor by a mechanism analogous to tachyphylaxis. Sartans/bisartans were found to bind to alpha adrenergic receptors resulting in structure-dependent desensitization or resensitization. These considerations have provided information on the mechanisms of receptor desensitization/tolerance and insights into possible avenues for treating addiction. In this regard sartans, which appear to cross the blood–brain barrier more readily than bisartans, are the preferred drug candidates. Full article
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10 pages, 1651 KiB  
Article
Protective Effects of Roselle Aqueous Extracts against UV-Induced Damage in Zebrafish Fins
by I-Ting Lee, Ching-Yuan Huang, Wei-Lin Su, Tran M. Truong, Chi-Chung Wen, Bo-Chang Wang and Yau-Hung Chen
Fishes 2024, 9(6), 199; https://doi.org/10.3390/fishes9060199 (registering DOI) - 26 May 2024
Abstract
(1) Background: Roselle (Hibiscus sabdariffa) is a flowering plant reported to have anti-obesity, antioxidant, antibacterial, and anti-inflammatory effects. This study aims to evaluate the UV-absorbing and antioxidant activities of roselle aqueous extracts (RAE) and test the protective effects of RAE against [...] Read more.
(1) Background: Roselle (Hibiscus sabdariffa) is a flowering plant reported to have anti-obesity, antioxidant, antibacterial, and anti-inflammatory effects. This study aims to evaluate the UV-absorbing and antioxidant activities of roselle aqueous extracts (RAE) and test the protective effects of RAE against UV radiation in zebrafish embryos. (2) Methods: DPPH assay and UV-spectrum methods were applied to evaluate the antioxidant and UV-absorbing activities, respectively. The protective effects of RAE were evaluated using fin morphology recording, Kaplan–Meier analysis, and Cox proportional hazards regression. Real-time PCR experiments were also applied to detect both the UV- and RAE-induced gene expressions. (3) Results: Our results show that (i) RAE had UV-absorbing abilities and significantly reduced ROS production in vitro; (ii) the mean times of malformed fins in the UV + RAE (36 and 48 ppm) groups were 3.56 and 4.44 days, respectively, and were prolonged compared to those in the UV-only group (3.36 days); (iii) zebrafish in the UV + RAE (36 and 48 ppm) groups were 0.963 and 0.496 (p < 0.001) times more likely to develop to malformed fins, respectively, than those in the UV-only group; and (iv) the RAE treatment led to the 0.19- to 0.62-fold downregulation of the p53, p21, mdm2, and bcl2 gene expressions, compared to the UV-only group. (4) Conclusions: The UV-protective effects of RAE might derive from both the in vitro UV-absorbing activity and in vivo regulation of the p53, p21, mdm2, and bcl2 gene expressions. Full article
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13 pages, 4784 KiB  
Article
Analysis of Rock Mass Energy Characteristics and Induced Disasters Considering the Blasting Superposition Effect
by Lu Chen, Xiaocong Yang, Lijie Guo and Shibo Yu
Processes 2024, 12(6), 1089; https://doi.org/10.3390/pr12061089 (registering DOI) - 26 May 2024
Abstract
Upon reaching deeper levels of extraction, dynamic hazards such as rockburst become more pronounced, with the high energy storage characteristics of rock masses in high-stress environments being the fundamental factor behind rockburst disasters. Additionally, deep-seated mineral extraction commonly involves drilling and blasting methods, [...] Read more.
Upon reaching deeper levels of extraction, dynamic hazards such as rockburst become more pronounced, with the high energy storage characteristics of rock masses in high-stress environments being the fundamental factor behind rockburst disasters. Additionally, deep-seated mineral extraction commonly involves drilling and blasting methods, where the vibrational energy generated by mining explosions combines with the elastic energy of rock masses, leading to a sudden growth in the risk and intensity of rockburst disasters. This paper, with deep mining at Sanshandao Gold Mine as the focal point, systematically investigates the impact of blasting vibrations on rockburst disasters in deep mines. Initially, based on extensive data on measured geostress considering the tri-arch cross-section form of deep tunnels, the elastic energy storage of the surrounding rocks in deep tunnels was calculated. The results indicate that the maximum energy storage of the surrounding rocks occurs at the bottom of the tunnel, with the peak accumulation position located at a distance of five times the tunnel radius. On this basis, the Map3D numerical simulation analysis was adopted to systematically capture the accumulation behavior and distribution characteristics of disturbance energy. Subsequently, by conducting the dynamic impact experiments with an improved Split Hopkinson pressure bar (SHPB) and monitoring vibration signals at various locations, the paper provides insights into the propagation patterns of impact energy in a long sample (400 mm in length and 50 mm in diameter). Analysis of the scattering behavior of vibrational energy reveals that the combined portion of blasting vibration energy constitutes 60% of the total vibrational energy. Finally, a rockburst disaster evaluation model based on energy accumulations was proposed to analyze the rockburst tendencies around deep tunnels. The results indicated that the disaster-driven energy increased by 19.9% and 12.2% at different places on the roadway. Also, the probability and intensity of a rockburst would be raised. Full article
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17 pages, 6110 KiB  
Article
Investigation of a Perspective Urban Tree Species, Ginkgo biloba L., by Scientific Analysis of Historical Old Specimens
by Szilvia Kisvarga, Dóra Hamar-Farkas, Katalin Horotán, Csaba Gyuricza, Katarína Ražná, Matúš Kučka, Ľubomír Harenčár, András Neményi, Csaba Lantos, János Pauk, Ádám Solti, Edina Simon, Dina Bibi, Semonti Mukherjee, Katalin Török, Andrea Tilly-Mándy, László Papp and László Orlóci
Plants 2024, 13(11), 1470; https://doi.org/10.3390/plants13111470 (registering DOI) - 26 May 2024
Abstract
In this study, we examined over 200-year-old Ginkgo biloba L. specimens under different environmental conditions. The overall aim was to explore which factors influence their vitality and general fitness in urban environments and thus their ability to tolerate stressful habitats. In order to [...] Read more.
In this study, we examined over 200-year-old Ginkgo biloba L. specimens under different environmental conditions. The overall aim was to explore which factors influence their vitality and general fitness in urban environments and thus their ability to tolerate stressful habitats. In order to determine this, we used a number of different methods, including histological examinations (stomatal density and size) and physiological measurements (peroxidase enzyme activity), as well as assessing the air pollution tolerance index (APTI). The investigation of the genetic relationships between individuals was performed using flow cytometry and miRNA marker methods. The genetic tests revealed that all individuals are diploid, whereas the lus-miR168 and lus-miR408 markers indicated a kinship relation between them. These results show that the effect of different habitat characteristics can be detected through morphological and physiological responses, thus indicating relatively higher stress values for all studied individuals. A significant correlation can be found between the level of adaptability and the relatedness of the examined individuals. These results suggest that Ginkgo biloba L. is well adapted to an environment with increased stress factors and therefore suitable for use in urban areas. Full article
(This article belongs to the Special Issue Ornamental Plants and Urban Gardening II)
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29 pages, 3752 KiB  
Article
Glycan Profile and Sequence Variants of Certified Ricin Reference Material and Other Ricin Samples Yield Unique Molecular Signature Features
by Roland Josuran, Andreas Wenger, Christian Müller, Bettina Kampa, Sylvia Worbs, Brigitte G. Dorner and Sabina Gerber
Toxins 2024, 16(6), 243; https://doi.org/10.3390/toxins16060243 (registering DOI) - 26 May 2024
Abstract
A certified reference material of ricin (CRM-LS-1) was produced by the EuroBioTox consortium to standardise the analysis of this biotoxin. This study established the N-glycan structures and proportions including their loci and occupancy of ricin CRM-LS-1. The glycan profile was compared with [...] Read more.
A certified reference material of ricin (CRM-LS-1) was produced by the EuroBioTox consortium to standardise the analysis of this biotoxin. This study established the N-glycan structures and proportions including their loci and occupancy of ricin CRM-LS-1. The glycan profile was compared with ricin from different preparations and other cultivars and isoforms. A total of 15 different oligomannosidic or paucimannosidic structures were identified in CRM-LS-1. Paucimannose was mainly found within the A-chain and oligomannose constituted the major glycan type of the B-chain. Furthermore, the novel primary structure variants E138 and D138 and four different C-termini of the A-chain as well as two B-chain variants V250 and F250 were elucidated. While the glycan proportions and loci were similar among all variants in CRM-LS-1 and ricin isoforms D and E of all cultivars analysed, a different stoichiometry for isoforms D and E and the amino acid variants were found. This detailed physicochemical characterization of ricin regarding the glycan profile and amino acid sequence variations yields unprecedented insight into the molecular features of this protein toxin. The variable attributes discovered within different cultivars present signature motifs and may allow discrimination of the biotoxin’s origin that are important in molecular forensic profiling. In conclusion, our data of in-depth CRM-LS-1 characterization combined with the analysis of other cultivars is representative for known ricin variants. Full article
12 pages, 2295 KiB  
Article
Effects of 6PPD-Quinone on Human Liver Cell Lines as Revealed with Cell Viability Assay and Metabolomics Analysis
by Yunqing Qi, Aiqing Qiu, Xinyue Wei, Yiting Huang, Qing Huang and Wei Huang
Toxics 2024, 12(6), 389; https://doi.org/10.3390/toxics12060389 (registering DOI) - 26 May 2024
Abstract
N-(1,3-Dimethyl butyl)-N′-phenyl-phenylenediamine-quinone (6PPD-Q) is a derivative of the widely used rubber tire antioxidant 6PPD, which was first found to be acutely toxic to coho salmon. Subsequent studies showed that 6PPD-Q had species-specific acute toxicity in fishes and potential hepatotoxicity in [...] Read more.
N-(1,3-Dimethyl butyl)-N′-phenyl-phenylenediamine-quinone (6PPD-Q) is a derivative of the widely used rubber tire antioxidant 6PPD, which was first found to be acutely toxic to coho salmon. Subsequent studies showed that 6PPD-Q had species-specific acute toxicity in fishes and potential hepatotoxicity in mice. In addition, 6PPD-Q has been reported in human urine, demonstrating the potential widespread exposure of humans to this chemical. However, whether 6PPD-Q poses a higher risk to humans than its parent compound, 6PPD, and could cause adverse effects in humans is still unclear. In this study, we utilized two human liver cell models (the human proto-hepatocyte model L02 and the human hepatocellular carcinoma cell line HepG2) to investigate the potentially differential effects of these two chemicals. Cell viability curve analysis showed that 6PPD-Q had lower IC50 values than 6PPD for both liver cell lines, suggesting higher toxicity of 6PPD-Q to human liver cells than 6PPD. In addition, L02 cells are more sensitive to 6PPD-Q exposure, which might be derived from its weaker metabolic transformation of 6PPD-Q, since significantly lower levels of phase I and phase II metabolites were detected in 6PPD-Q-exposed L02 cell culture medium. Furthermore, pathway analysis showed that 6PPD-Q exposure induced changes in phenylalanine, tyrosine, and tryptophan biosynthesis and tyrosine metabolism pathways in L02 cells, which might be the mechanism underlying its liver cell toxicity. Gene expression analysis revealed that exposure to 6PPD-Q induced excessive ROS production in L02 cells. Our results further supported the higher risk of 6PPD-Q than 6PPD and provided insights for understanding the effects of 6PPD-Q on human health. Full article
(This article belongs to the Special Issue Environmental Contaminants and Human Health)
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11 pages, 2658 KiB  
Article
Proangiogenic Azaphilones from the Marine-Derived Fungus Neopestalotiopsis sp. HN-1-6
by Ting Feng, Rongxiang Wu, Yufei Wang, Pei Wang, Liman Zhou, Cong Wang and Fandong Kong
Mar. Drugs 2024, 22(6), 241; https://doi.org/10.3390/md22060241 (registering DOI) - 26 May 2024
Abstract
Developing novel, safe, and efficient proangiogenic drugs is an important approach for the prevention and treatment of cardiovascular diseases. In this study, 4 new compounds, including 3 azaphilones (13) and 1 dihydroisocoumarin (4), as well as 13 [...] Read more.
Developing novel, safe, and efficient proangiogenic drugs is an important approach for the prevention and treatment of cardiovascular diseases. In this study, 4 new compounds, including 3 azaphilones (13) and 1 dihydroisocoumarin (4), as well as 13 known compounds (517), were isolated from the sea-mud-derived fungus Neopestalotiopsis sp. HN-1-6 from the Beibu Gulf of China. The structures of the new compounds were determined by NMR, MS, ECD, and NMR calculations. Compounds 3, 5, and 7 exhibited noteworthy proangiogenic activities in a zebrafish model at a concentration of 40 μM, without displaying cytotoxicity toward five human cell lines. In addition, some compounds demonstrated antibacterial effects against Staphylococcus aureus, Escherichia coli, and Candida albicans, with MIC values ranging from 64 μg/mL to 256 μg/mL. Full article
(This article belongs to the Section Structural Studies on Marine Natural Products)
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14 pages, 1012 KiB  
Article
Plain Water Intake, Sleep Quality, and Hydration Status of Pregnant Woman in Hainan, China: A Cross-Sectional Study
by Guotian Lin, Na Zhang, Zhixiong Lin, Limin He and Fan Zhang
Nutrients 2024, 16(11), 1626; https://doi.org/10.3390/nu16111626 (registering DOI) - 26 May 2024
Abstract
Objective: Both short and long sleep durations are associated with decreased kidney function; however, few studies have examined the relationship between sleep, hydration status, and plain water intake. This study aimed to assess the relationship between sleep quality, hydration status, and plain water [...] Read more.
Objective: Both short and long sleep durations are associated with decreased kidney function; however, few studies have examined the relationship between sleep, hydration status, and plain water intake. This study aimed to assess the relationship between sleep quality, hydration status, and plain water intake in pregnant women. Methods: A cross-sectional study method was used to collect data from 380 pregnant women with regular examinations at the hospital between May 2019 and February 2021. Results: There were statistically significant differences in daily plain water intake (x2 = 14.118, p = 0.001), PSQI score (x2 = 77.708, p < 0.001), sleep duration (x2 = 67.569, p > 0.001), subjective sleep quality (x2 = 67.441, p = 0.001), time to fall asleep (x2 = 64.782, p < 001), sleep disorders (x2 = 70.853, p < 0.001), and daytime dysfunction (x2 = 38.441, p < 0.001) among different hydration status groups. Ordinal logistic regression results indicated that the intake of plain water ≥1500 mL/d (OR = 0.40, 95% CI = 0.24~0.67), good subjective sleep quality (OR = 0.15, 95% CI = 0.07~0.32), short time to fall asleep (OR = 0.32, 95% CI = 0.14~0.70), 8 h of sleep (OR = 0.06, 95% CI = 0.02~0.17), 6–7 h of sleep (OR = 0.19, 95% CI = 0.07~0.54), no sleep disturbance (OR = 0.31, 95% CI = 0.11~0.89), and high sleep efficiency (OR = 0.46, 95% CI = 0.03~0.79) were factors that were correlated with optimal hydration status. Sleep duration and daytime dysfunction partially mediated the effect of plain water intake on hydration status. The mediating effect of sleep duration was −0.036, accounting for 14.006% of the overall effect. The mediating effect of daytime dysfunction was −0.024, accounting for 9.459% of the overall effect. Conclusion: The hydration status in pregnant women may be affected by daily plain water intake and sleep quality. Full article
(This article belongs to the Special Issue Nutrition and Food Safety in Pregnancy)
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19 pages, 7940 KiB  
Article
Electrospun Nanofibers with Pomegranate Peel Extract as a New Concept for Treating Oral Infections
by Magdalena Paczkowska-Walendowska, Miłosz Ignacyk, Andrzej Miklaszewski, Tomasz Plech, Tomasz M. Karpiński, Jakub Kwiatek, Ewelina Swora-Cwynar, Michał Walendowski and Judyta Cielecka-Piontek
Materials 2024, 17(11), 2558; https://doi.org/10.3390/ma17112558 (registering DOI) - 26 May 2024
Abstract
Pomegranate peel extract is known for its potent antibacterial, antiviral, antioxidant, anti-inflammatory, wound healing, and probiotic properties, leading to its use in treating oral infections. In the first stage of this work, for the first time, using the Design of Experiment (DoE) approach, [...] Read more.
Pomegranate peel extract is known for its potent antibacterial, antiviral, antioxidant, anti-inflammatory, wound healing, and probiotic properties, leading to its use in treating oral infections. In the first stage of this work, for the first time, using the Design of Experiment (DoE) approach, pomegranate peel extract (70% methanol, temperature 70 °C, and three cycles per 90 min) was optimized and obtained, which showed optimal antioxidant and anti-inflammatory properties. The optimized extract showed antibacterial activity against oral pathogenic bacteria. The second part of this study focused on optimizing an electrospinning process for a combination of polycaprolactone (PCL) and polyvinylpyrrolidone (PVP) nanofibers loaded with the optimized pomegranate peel extract. The characterization of the nanofibers was confirmed by using SEM pictures, XRPD diffractograms, and IR-ATR spectra. The composition of the nanofibers can control the release; in the case of PVP–based nanofibers, immediate release was achieved within 30 min, while in the case of PCL/PVP, controlled release was completed within 24 h. Analysis of the effect of different scaffold compositions of the obtained electrofibers showed that those based on PCL/PVP had better wound healing potential. The proposed strategy to produce electrospun nanofibers with pomegranate peel extract is the first and innovative approach to better use the synergy of biological action of active compounds present in extracts in a patient-friendly pharmaceutical form, beneficial for treating oral infections. Full article
(This article belongs to the Special Issue Electrospinning: Nanofabrication and Application, Volume II)
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9 pages, 471 KiB  
Review
Generative Artificial Intelligence in Tertiary Education: Assessment Redesign Principles and Considerations
by Che Yee Lye and Lyndon Lim
Educ. Sci. 2024, 14(6), 569; https://doi.org/10.3390/educsci14060569 (registering DOI) - 26 May 2024
Abstract
The emergence of generative artificial intelligence (AI) such as ChatGPT has sparked significant assessment concerns within tertiary education. Assessment concerns have largely revolved around academic integrity issues among students, such as plagiarism and cheating. Nonetheless, it is also critical to consider that generative [...] Read more.
The emergence of generative artificial intelligence (AI) such as ChatGPT has sparked significant assessment concerns within tertiary education. Assessment concerns have largely revolved around academic integrity issues among students, such as plagiarism and cheating. Nonetheless, it is also critical to consider that generative AI models trained on information retrieved from the Internet could produce biased and discriminatory outputs, and hallucination issues in large language models upon which generative AI acts provide made-up and untruthful outputs. This article considers the affordances and challenges of generative AI specific to assessments within tertiary education. It illustrates considerations for assessment redesign with the existence of generative AI and proposes the Against, Avoid and Adopt (AAA) principle to rethink and redesign assessments. It argues that more generative AI tools will emerge exponentially, and hence, engaging in an arms race against generative AI and policing the use of these technologies may not address the fundamental issues in assessments. Full article
(This article belongs to the Special Issue Teaching and Learning with Generative AI)
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15 pages, 5806 KiB  
Article
Ex Vivo Analysis of Cell Differentiation, Oxidative Stress, Inflammation, and DNA Damage on Cutaneous Field Cancerization
by Lara Camillo, Elisa Zavattaro, Federica Veronese, Laura Cristina Gironi, Ottavio Cremona and Paola Savoia
Int. J. Mol. Sci. 2024, 25(11), 5775; https://doi.org/10.3390/ijms25115775 (registering DOI) - 26 May 2024
Abstract
Cutaneous field cancerization (CFC) refers to a skin region containing mutated cells’ clones, predominantly arising from chronic exposure to ultraviolet radiation (UVR), which exhibits an elevated risk of developing precancerous and neoplastic lesions. Despite extensive research, many molecular aspects of CFC still need [...] Read more.
Cutaneous field cancerization (CFC) refers to a skin region containing mutated cells’ clones, predominantly arising from chronic exposure to ultraviolet radiation (UVR), which exhibits an elevated risk of developing precancerous and neoplastic lesions. Despite extensive research, many molecular aspects of CFC still need to be better understood. In this study, we conducted ex vivo assessment of cell differentiation, oxidative stress, inflammation, and DNA damage in CFC samples. We collected perilesional skin from 41 patients with skin cancer and non-photoexposed skin from 25 healthy control individuals. These biopsies were either paraffin-embedded for indirect immunofluorescence and immunohistochemistry stain or processed for proteins and mRNA extraction from the epidermidis. Our findings indicate a downregulation of p53 expression and an upregulation of Ki67 and p16 in CFC tissues. Additionally, there were alterations in keratinocyte differentiation markers, disrupted cell differentiation, increased expression of iNOS and proinflammatory cytokines IL-6 and IL-8, along with evidence of oxidative DNA damage. Collectively, our results suggest that despite its outwardly normal appearance, CFC tissue shows early signs of DNA damage, an active inflammatory state, oxidative stress, abnormal cell proliferation and differentiation. Full article
(This article belongs to the Section Molecular Oncology)
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20 pages, 2204 KiB  
Systematic Review
Patients and Healthcare Providers’ Perspectives on Patient Experience Factors and a Model of Patient-Centered Care Communication: A Systematic Review
by Eun-Jeong Kim, Yoo-Ri Koo and Inn-Chul Nam
Healthcare 2024, 12(11), 1090; https://doi.org/10.3390/healthcare12111090 (registering DOI) - 26 May 2024
Abstract
Effective communication between patients and healthcare providers is essential for a positive patient experience (PE), and improving patient-centered care (PCC) involves many factors. This study aimed to (1) identify the factors that affect PE improvement, (2) reflect patients and healthcare providers’ perspectives on [...] Read more.
Effective communication between patients and healthcare providers is essential for a positive patient experience (PE), and improving patient-centered care (PCC) involves many factors. This study aimed to (1) identify the factors that affect PE improvement, (2) reflect patients and healthcare providers’ perspectives on the factors’ importance, and (3) present a structural model for improving PCC. A systematic review of empirical studies that specified PE factors was conducted. Studies that did not reflect users’ perspectives and non-empirical studies were excluded. The literature was searched using Google Scholar, PubMed, Web of Science, and the Taylor and Francis online journal. The MMAT 2018 checklist was used to assess bias in the included studies, and frequency, content, and thematic analyses were employed to synthesize the results, yielding 25 articles. The 80 PE factors identified from the analyses were categorized into six categories: Practice, Physical Needs, Psychological Needs, Social Needs, Practical Needs, and Information Needs. From a user perspective, patients emphasized professional, continuous, and comprehensive service delivery, whereas healthcare providers stressed efficient system improvements and positive provider–patient relationships. We propose a structured model for PCC improvement using a service blueprint and system map. The PCC model provides an overview of the interactions and the roles of all stakeholders regarding quality of care to improve healthcare. Full article
(This article belongs to the Special Issue Review Research on Healthcare Quality and Patient Safety)
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3 pages, 175 KiB  
Editorial
Bioactive Compounds from Agrifood Byproducts: Their Use in Medicine and Biology
by Paola Faraoni and Serena Laschi
Int. J. Mol. Sci. 2024, 25(11), 5776; https://doi.org/10.3390/ijms25115776 (registering DOI) - 26 May 2024
Abstract
Agrifood produces a high amount of waste, millions of tons per year worldwide, the disposal of which is a significant environmental, organizational, logistical, economic and ethic problem and in the last decades the scientific interest about this argument has increased significantly [...] Full article
18 pages, 9440 KiB  
Article
Research on the Flow Characteristics of Power-Law Fluids in Self-Priming Sewage Pumps
by Xukan Li, Shuihua Zheng, Zhenghao Shao, Mingjie Xu, Yiliang Li, Qing Huang, Min Chai and Zenan Sun
Water 2024, 16(11), 1526; https://doi.org/10.3390/w16111526 (registering DOI) - 26 May 2024
Abstract
To conduct a more in-depth study of the flow mechanism of power-law fluids within sewage pumps, this paper focuses on self-priming sewage pumps, with typical power-law fluid (Carboxymethyl Cellulose, CMC) as the conveying medium. The constitutive equations for sewage and typical power-law fluid [...] Read more.
To conduct a more in-depth study of the flow mechanism of power-law fluids within sewage pumps, this paper focuses on self-priming sewage pumps, with typical power-law fluid (Carboxymethyl Cellulose, CMC) as the conveying medium. The constitutive equations for sewage and typical power-law fluid (CMC solution) were established using the power-law model. Through numerical calculation methods, the non-steady flow field inside the pump of different concentration power-law fluids was analyzed from various aspects such as velocity, pressure, vorticity, and wall shear stress. The pressure pulsations at key locations in the pump flow field were monitored and analyzed. At the rated flow rate, when the concentration of CMC solution increased from 0.5% to 2.0%, the channel pressure and tongue pressure decreased by 16.5% and 3.5%, respectively. This indicates that the pressure on the impeller blades, within the flow passages, and at the tongue of the volute all decrease with the increase in concentration of CMC solution. This may alter the fluid flow pattern, leading to more vortex motion and shear deformation, while also reducing the pump’s pressure boosting capability, thereby affecting the pump’s performance stability. It can be inferred from quantitative comparisons that changes in rheological properties had a significant impact on the flow characteristics of sewage pumps. This paper reveals that some flow characteristics of power-law fluids in sewage pumps, providing a theoretical and reference basis for the performance optimization and flow mechanism research of sewage pumps. Full article
(This article belongs to the Special Issue Hydrodynamics in Pumping and Hydropower Systems)
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15 pages, 5193 KiB  
Article
Simulation of the Measured Reactivity Distributions in the Subcritical MYRRHA Reactor
by Jerzy Janczyszyn, Grażyna Domańska and Mikołaj Oettingen
Energies 2024, 17(11), 2565; https://doi.org/10.3390/en17112565 (registering DOI) - 26 May 2024
Abstract
The designed MYRRHA reactor, in its subcritical version, will be equipped with a set of detectors monitoring its condition by measuring the current value of negative reactivity, which is a crucial parameter for its safe operation. In subcritical systems, accurate and precise measurement [...] Read more.
The designed MYRRHA reactor, in its subcritical version, will be equipped with a set of detectors monitoring its condition by measuring the current value of negative reactivity, which is a crucial parameter for its safe operation. In subcritical systems, accurate and precise measurement of negative reactivity is disturbed by the so-called spatial effect, i.e., the response of detectors depends on their placement in the reactor core. This paper focuses on the Monte Carlo simulations of reactivity measurements using the area method for natU, 238U, 241Am, 239Pu, and 232Th detectors. The simulations were performed in six positions with increasing distance from the center of the core and at three axial levels. The obtained results allow for selecting optimum locations for detectors and detector nuclides in terms of the accuracy of reactivity measurement and illustrate the dependence of the reactivity on the distance. Additionally, the possibility of using 103Rh in self-powered neutron detectors was investigated. The influence of spatial effect in calculations using the area method was directly indicated in the MYRRHA reactor core for chosen isotopes and in-core positions. The results closest to true values were obtained for the second fuel assembly for 239Pu, and the third fuel assembly for natU, 238U, 232Th, and 241Am; thus, these nuclides and positions should be preferred when selecting detectors for MYRRHA. Full article
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11 pages, 3201 KiB  
Article
Deep Learning-Based Nystagmus Detection for BPPV Diagnosis
by Sae Byeol Mun, Young Jae Kim, Ju Hyoung Lee, Gyu Cheol Han, Sung Ho Cho, Seok Jin and Kwang Gi Kim
Sensors 2024, 24(11), 3417; https://doi.org/10.3390/s24113417 (registering DOI) - 26 May 2024
Abstract
In this study, we propose a deep learning-based nystagmus detection algorithm using video oculography (VOG) data to diagnose benign paroxysmal positional vertigo (BPPV). Various deep learning architectures were utilized to develop and evaluate nystagmus detection models. Among the four deep learning architectures used [...] Read more.
In this study, we propose a deep learning-based nystagmus detection algorithm using video oculography (VOG) data to diagnose benign paroxysmal positional vertigo (BPPV). Various deep learning architectures were utilized to develop and evaluate nystagmus detection models. Among the four deep learning architectures used in this study, the CNN1D model proposed as a nystagmus detection model demonstrated the best performance, exhibiting a sensitivity of 94.06 ± 0.78%, specificity of 86.39 ± 1.31%, precision of 91.34 ± 0.84%, accuracy of 91.02 ± 0.66%, and an F1-score of 92.68 ± 0.55%. These results indicate the high accuracy and generalizability of the proposed nystagmus diagnosis algorithm. In conclusion, this study validates the practicality of deep learning in diagnosing BPPV and offers avenues for numerous potential applications of deep learning in the medical diagnostic sector. The findings of this research underscore its importance in enhancing diagnostic accuracy and efficiency in healthcare. Full article
(This article belongs to the Special Issue Deep Learning for Computer Vision and Image Processing Sensors)
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16 pages, 438 KiB  
Review
Gene Abnormalities and Modulated Gene Expression Associated with Radionuclide Treatment: Towards Predictive Biomarkers of Response
by Tim A. D. Smith
Genes 2024, 15(6), 688; https://doi.org/10.3390/genes15060688 (registering DOI) - 26 May 2024
Abstract
Molecular radiotherapy (MRT), also known as radioimmunotherapy or targeted radiotherapy, is the delivery of radionuclides to tumours by targeting receptors overexpressed on the cancer cell. Currently it is used in the treatment of a few cancer types including lymphoma, neuroendocrine, and prostate cancer. [...] Read more.
Molecular radiotherapy (MRT), also known as radioimmunotherapy or targeted radiotherapy, is the delivery of radionuclides to tumours by targeting receptors overexpressed on the cancer cell. Currently it is used in the treatment of a few cancer types including lymphoma, neuroendocrine, and prostate cancer. Recently reported outcomes demonstrating improvements in patient survival have led to an upsurge in interest in MRT particularly for the treatment of prostate cancer. Unfortunately, between 30% and 40% of patients do not respond. Further normal tissue exposure, especially kidney and salivary gland due to receptor expression, result in toxicity, including dry mouth. Predictive biomarkers to select patients who will benefit from MRT are crucial. Whilst pre-treatment imaging with imaging versions of the therapeutic agents is useful in demonstrating tumour binding and potentially organ toxicity, they do not necessarily predict patient benefit, which is dependent on tumour radiosensitivity. Transcript-based biomarkers have proven useful in tailoring external beam radiotherapy and adjuvant treatment. However, few studies have attempted to derive signatures for MRT response prediction. Here, transcriptomic studies that have identified genes associated with clinical radionuclide exposure have been reviewed. These studies will provide potential features for seeding multi-component biomarkers of MRT response. Full article
(This article belongs to the Section Molecular Genetics and Genomics)
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29 pages, 742 KiB  
Review
Revitalizing the Gut Microbiome in Chronic Kidney Disease: A Comprehensive Exploration of the Therapeutic Potential of Physical Activity
by Marieke Vandecruys, Stefan De Smet, Jasmine De Beir, Marie Renier, Sofie Leunis, Hanne Van Criekinge, Griet Glorieux, Jeroen Raes, Karsten Vanden Wyngaert, Evi Nagler, Patrick Calders, Diethard Monbaliu, Véronique Cornelissen, Pieter Evenepoel and Amaryllis H. Van Craenenbroeck
Toxins 2024, 16(6), 242; https://doi.org/10.3390/toxins16060242 (registering DOI) - 26 May 2024
Abstract
Both physical inactivity and disruptions in the gut microbiome appear to be prevalent in patients with chronic kidney disease (CKD). Engaging in physical activity could present a novel nonpharmacological strategy for enhancing the gut microbiome and mitigating the adverse effects associated with microbial [...] Read more.
Both physical inactivity and disruptions in the gut microbiome appear to be prevalent in patients with chronic kidney disease (CKD). Engaging in physical activity could present a novel nonpharmacological strategy for enhancing the gut microbiome and mitigating the adverse effects associated with microbial dysbiosis in individuals with CKD. This narrative review explores the underlying mechanisms through which physical activity may favorably modulate microbial health, either through direct impact on the gut or through interorgan crosstalk. Also, the development of microbial dysbiosis and its interplay with physical inactivity in patients with CKD are discussed. Mechanisms and interventions through which physical activity may restore gut homeostasis in individuals with CKD are explored. Full article
(This article belongs to the Special Issue Toxins: 15th Anniversary)
16 pages, 804 KiB  
Article
Beverage Consumption and Factors Influencing the Choice of Beverages among Polish Children Aged 11–13 Years in 2018–2023
by Julianna Kostecka, Izabella Jackowska, Izabela Chabros, Joanna Kostecka-Jarecka, Paulina Kawecka and Malgorzata Kostecka
Nutrients 2024, 16(11), 1625; https://doi.org/10.3390/nu16111625 (registering DOI) - 26 May 2024
Abstract
Adequate hydration is essential for good health, and an individual’s hydration status is determined by the quantity and type of ingested fluids. The aim of the present study was to determine the hydration status of school-age children and evaluate changes in the type [...] Read more.
Adequate hydration is essential for good health, and an individual’s hydration status is determined by the quantity and type of ingested fluids. The aim of the present study was to determine the hydration status of school-age children and evaluate changes in the type and quantity of consumed beverages between 2018 and 2023. The study was conducted in two stages between 2018 and 2023, and a total of 1030 fully completed questionnaires were returned by the children and their parents. A comparison of the parents’ responses regarding factors that affect beverage choices revealed that beverage composition was more significant for the parents in 2023 than in 2018, whereas health-promoting properties were significant for only less than 30% of the respondents. Taste preferences were important for both the parents and the children, and they were the main criterion in the choice of beverages in both 2018 and 2023. In turn, advertising was an important factor for children, and the percentage of children who were guided by advertising in their choice of beverages increased from 52.1% in 2018 to 58.5% in 2023 (p < 0.05). Daily fluid intake in children aged 11–13 years generally does not meet physiological requirements. Low fluid intake can negatively affect children’s hydration status and bodily functions. Taste preferences and advertising were correlated with a higher intake of carbonated and non-carbonated sugar-sweetened beverages (SSBs) and dairy beverages. The percentage of children who bought drinks independently and had access to SSBs increased significantly during the analyzed period. Obtain results indicate that nutrition education programs are needed to teach adolescents to make healthy drink choices, limit their consumption of SSBs and EDs, and promote regular intake of natural mineral water and non-sweetened dairy beverages. Full article
(This article belongs to the Section Carbohydrates)
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15 pages, 1052 KiB  
Review
Two Concepts of Hepatitis B Core-Related Antigen Assay: A Highly Sensitive and Rapid Assay or an Effective Tool for Widespread Screening
by Takako Inoue, Shintaro Yagi and Yasuhito Tanaka
Viruses 2024, 16(6), 848; https://doi.org/10.3390/v16060848 (registering DOI) - 26 May 2024
Abstract
Hepatitis B core-related antigen (HBcrAg) reflects the activity of intrahepatic covalently closed circular DNA. HBcrAg can be detected even in chronic hepatitis B patients in whom serum HBV DNA or hepatitis B surface antigen is undetectable. The HBcrAg measurement system was developed based [...] Read more.
Hepatitis B core-related antigen (HBcrAg) reflects the activity of intrahepatic covalently closed circular DNA. HBcrAg can be detected even in chronic hepatitis B patients in whom serum HBV DNA or hepatitis B surface antigen is undetectable. The HBcrAg measurement system was developed based on two concepts. One is a fully-automated and highly-sensitive HBcrAg assay (iTACT-HBcrAg) and the other is a point-of-care testing (POCT) that can be used in in resource-limited areas. iTACT-HBcrAg is an alternative to HBV DNA for monitoring HBV reactivation and predicting the development of hepatocellular carcinoma. This validated biomarker is available in routine clinical practice in Japan. Currently, international guidelines for the prevention of mother-to-child transmission recommend anti-HBV prophylaxis for pregnant women with high viral loads. However, over 95% of HBV-infected individuals live in countries where HBV DNA quantification is widely unavailable. Given this situation, a rapid and simple HBcrAg assay for POCT would be highly effective. Long-term anti-HBV therapy may have potential side effects and appropriate treatment should be provided to eligible patients. Therefore, a simple method of determining the indication for anti-HBV treatment would be ideal. This review provides up-to-date information regarding the clinical value of HBcrAg in HBV management, based on iTACT-HBcrAg or POCT. Full article
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15 pages, 4960 KiB  
Article
Invasive Plant Species Demonstrate Enhanced Resource Acquisition Traits Relative to Native Non-Dominant Species but Not the Case Compared with Native Dominant Species
by Yingcan Chen, Yijie Xie, Caihong Wei, Si Liu, Xiaoyue Liang, Jiaen Zhang and Ronghua Li
Diversity 2024, 16(6), 317; https://doi.org/10.3390/d16060317 (registering DOI) - 26 May 2024
Abstract
Invasive plant species are often characterized by superior resource acquisition capabilities compared with native species, contributing to their success in new environments. However, the dominance of these species varies, and not all invasive species become dominant, nor are all native species uniformly vulnerable [...] Read more.
Invasive plant species are often characterized by superior resource acquisition capabilities compared with native species, contributing to their success in new environments. However, the dominance of these species varies, and not all invasive species become dominant, nor are all native species uniformly vulnerable to competitive exclusion. In this study, we analyzed 19 functional traits across 144 herbaceous plant species in Guangzhou, China. The studied species included 31 invasive dominant species (IDS), 19 invasive non-dominant species (INS), 63 native dominant species (NDS), and 31 native non-dominant species (NNS). Our findings reveal no significant differences in functional traits between IDS and INS, indicating a broad trait similarity within invasive categories. Pronounced similarities between invasive species and NDS suggest an ecological equivalency that facilitates successful integration and competition in new habitats. Notable differences in several key traits—height, leaf thickness, leaf water content, stoichiometry, photosynthetic rate, water use efficiency, and nitrogen use efficiency—indicate a competitive superiority in resource acquisition and utilization for invasive species over NNS. These distinctions are vital for understanding the mechanisms driving the success of invasive species and are crucial for developing strategies to manage their impact on native ecosystems. Full article
(This article belongs to the Topic Plant Invasion)
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