The 2023 MDPI Annual Report has
been released!
 
14 pages, 6983 KiB  
Article
Investigation of the Shear Mechanism at Sand-Concrete Interface under the Influence of the Concave Groove Angle of the Contact Surface
by Zhigang Meng, Yunsong Li, Huanhuan Li, Songlin Shen and Haijiang Zhang
Buildings 2024, 14(5), 1452; https://doi.org/10.3390/buildings14051452 - 17 May 2024
Abstract
A “random-type” sand–concrete interface shear test was developed based on the sand cone method, with a focus on the most commonly encountered triangular contact surface morphology. A “regular-type” triangular interface, matched in roughness to the “random-type”, was meticulously designed. This “regular-type” interface features [...] Read more.
A “random-type” sand–concrete interface shear test was developed based on the sand cone method, with a focus on the most commonly encountered triangular contact surface morphology. A “regular-type” triangular interface, matched in roughness to the “random-type”, was meticulously designed. This “regular-type” interface features five distinct triangular groove inclinations: 18°, 33°, 50°, 70°, and 90°. A series of sand–concrete interface direct shear tests were conducted under consistent compaction conditions to investigate the impact of varying compaction densities and triangular groove inclinations on the shear strength at the interface. Particle flow simulations were utilized to examine the morphology of the shear band and the characteristics of particle migration influenced by the triangular contact surface. This analysis is aimed at elucidating the influence of the inclination of the triangular groove on the shear failure mechanism at the sand–concrete interface. The findings indicate that: (1) The morphology of the interface significantly impacts the shear strength of the sand–concrete interface, while the shape of the stress-displacement curve experiences minimal alteration. (2) At smaller inclination angles, particle contact forces are arranged in a wave-like configuration around the sawtooth tip, resulting in a non-uniform stress distribution along the sawtooth slope. However, as the inclination angle grows, the stress concentration at the sawtooth tip diminishes, and the stress distribution across the sawtooth slope becomes more consistent. (3) Particle migration is significantly influenced by the sawtooth’s inclination angle. At lower angles, particles climb the structure’s tip through sliding and rolling. As the angle increases, particle motion shifts to shear, accompanied by a transition in friction from surface friction to internal shear friction. This leads to the formation of a wider shear band and an increase in shear strength. Full article
(This article belongs to the Section Building Materials, and Repair & Renovation)
Show Figures

Figure 1

16 pages, 1466 KiB  
Article
Glycolysis and Automated Plaque Regrowth Method for Evaluation of Antimicrobial Performance
by Robert L. Karlinsey and Tamara R. Karlinsey
Dent. J. 2024, 12(5), 146; https://doi.org/10.3390/dj12050146 - 17 May 2024
Abstract
Purpose: This study explored the potential of a new in vitro method in evaluating antiplaque benefits from five sets of antimicrobial systems including cetylpyridinium chloride (CPC), stannous fluoride (SnF2), Listerine essential oil mouthwashes (+/− alcohol), zinc chloride (ZnCl2), and [...] Read more.
Purpose: This study explored the potential of a new in vitro method in evaluating antiplaque benefits from five sets of antimicrobial systems including cetylpyridinium chloride (CPC), stannous fluoride (SnF2), Listerine essential oil mouthwashes (+/− alcohol), zinc chloride (ZnCl2), and sodium fluoride. (NaF). Methods: Gingival dental plaque was collected and propagated using sterilized tryptic soy broth and sucrose, and then allocated into separate glycolysis and regrowth recipes for antiplaque evaluations. Glycolysis measurements (in duplicate) were recorded via pH microelectrode on plaque-treatment samples thermomixed (1200 rpm, 37 °C) for 4 h. For plaque regrowth, optical densities (in duplicate) were automatically collected on plaque-treatment samples using a microplate reader (linear shaking, 37 °C) from baseline to 4 h. Results: Calculations of percent change in pH and optical density were performed and analyzed for each set of antimicrobial treatment groups. Statistical analysis (one-way ANOVA, Student–Newman–Keuls stepwise comparison tests) revealed dose responses and significant differences (p < 0.05) among treatment groups, including between negative and clinically relevant positive controls. Conclusions: This lab method produces results consistent with published clinical observations. This glycolysis and plaque growth method is sensitive to antimicrobial mechanisms of action, and may offer a convenient and clinically relevant screening tool in the evaluation of putative antimicrobial agents and formulations. Full article
(This article belongs to the Special Issue Preventive Dentistry and Dental Public Health)
Show Figures

Figure 1

13 pages, 2691 KiB  
Article
Rosuvastatin Intervention in Patients with Chronic Hepatitis B (CHB) Expands CD14+ CD16− Classical Monocytes via Aryl Hydrocarbon Receptor (AHR)
by Mina Rahmati, Mojtaba Zare Ebrahimabad, Alale Langari, Ali Najafi, Shohreh Taziki, Alireza Norouzi, Mehrdad Teimoorian, Milad Khorasani and Saeed Mohammadi
Immuno 2024, 4(2), 159-171; https://doi.org/10.3390/immuno4020011 - 17 May 2024
Abstract
Chronic hepatitis B (CHB) poses treatment challenges, with treatment response and disease outcome often determined by the immune response, particularly mononuclear phagocytes. Monocytes can differentiate into various subpopulations influenced by AHR. Statins, known for inflammation modulation, may impact monocyte function via AHR activation. [...] Read more.
Chronic hepatitis B (CHB) poses treatment challenges, with treatment response and disease outcome often determined by the immune response, particularly mononuclear phagocytes. Monocytes can differentiate into various subpopulations influenced by AHR. Statins, known for inflammation modulation, may impact monocyte function via AHR activation. This study explored rosuvastatin (RSV)’s effects on monocyte subtypes, inflammatory markers, and AHR in CHB patients. Fifteen CHB patients were randomly assigned to receive either 20 mg RSV or a placebo daily for three months. Flow cytometry assessed CD14+ CD16− (classical), CD14+ CD16+ (intermediate), and CD14dim CD16+ (patrolling) monocyte subtypes, along with AHR levels in each subset. ELISA quantified cytokines IL-6, IFN-γ, IL-12, IL-10, TNF-α, TGF-β, and IL-1β. RSV expanded CD14+ CD16− classical and reduced CD14+ CD16+ intermediate monocytes in CHB patients while increasing AHR+ cell percentages in all subsets. RSV treatment upregulated key AHR target genes (Cyp1a1, Cyp1b1, and ARNT), indicating robust AHR signaling activation. It also reduced pro-inflammatory cytokine levels (IL-6, IFNγ, IL-12, TNF-α) and elevated anti-inflammatory cytokines (IL-10, TGF-β). Thus, RSV may modulate the immune response by altering monocyte subtypes in CHB patients via AHR activation. Full article
(This article belongs to the Section Innate Immunity and Inflammation)
Show Figures

Graphical abstract

12 pages, 845 KiB  
Article
Sensitivity Assessment of a Multiplex and Real-Time PCR Protocols for the Detection of Malaria in External Quality Control Samples in the Malaria Reference Center in Greece
by Nikolaos Tegos, Christos Goumenopoulos, Anastasia Mpimpa, Vasilios Papavasilopoulos, Stavroula Beleri and Eleni Patsoula
Parasitologia 2024, 4(2), 150-161; https://doi.org/10.3390/parasitologia4020013 - 17 May 2024
Abstract
Background: Accurate malaria diagnosis constitutes a challenging task, necessitating the need for the implementation of targeted and effective diagnostic tools. The purpose of the current study was to evaluate the effectiveness of two different molecular methodologies in terms of sensitivity for the detection [...] Read more.
Background: Accurate malaria diagnosis constitutes a challenging task, necessitating the need for the implementation of targeted and effective diagnostic tools. The purpose of the current study was to evaluate the effectiveness of two different molecular methodologies in terms of sensitivity for the detection of External Quality Assessment (EQA) Plasmodium samples. Methods: A total of 104 lyophilized blood samples from 14 different UK-NEQAS (National External Quality Assessment Site) (2016–2021) and eight WHO-NEQAS distributions (2017–2020) were analyzed. An in-house multiplex PCR protocol, followed by single target real-time PCR protocols for all five Plasmodium species, was implemented. Results: The multiplex PCR had a success rate of 10/16 and 20/28 for P. vivax and P. falciparum species, respectively. On the other hand, the respective results for real-time PCR had a success rate of 13/16 (P. vivax), 28/28 (P. falciparum), 5/8 (P. malariae), 8/10 (P. ovale), and 10/14 (P. knowlesi). Plasmodium falciparum samples displayed the highest sensitivity of detection, 0.02 parasites/μL. Plasmodium vivax samples displayed a 0.1 parasites/μL cutoff value, greater than the respective value for whole blood samples, while P. ovale species displayed a respective cutoff value of 0.05 parasites/μL. Due to the limited number of tested samples, data obtained for P. malariae and P. knowlesi species samples were inconclusive. Conclusions: Real-time PCR comprises a credible molecular methodology in terms of sensitivity assessment and detection of low parasitemia levels of Plasmodium sp. in EQA lyophilized blood samples. Full article
Show Figures

Figure 1

17 pages, 2333 KiB  
Article
Abundance, Characterization and Diversity of Culturable Anoxygenic Phototrophic Bacteria in Manitoban Marshlands
by Katia Messner and Vladimir Yurkov
Microorganisms 2024, 12(5), 1007; https://doi.org/10.3390/microorganisms12051007 - 17 May 2024
Abstract
Marshes are an important ecosystem, acting as a biodiversity hotspot, a carbon sink and a bioremediation site, breaking down anthropogenic waste such as antibiotics, metals and fertilizers. Due to their participation in these metabolic activities and their capability to contribute to primary productivity, [...] Read more.
Marshes are an important ecosystem, acting as a biodiversity hotspot, a carbon sink and a bioremediation site, breaking down anthropogenic waste such as antibiotics, metals and fertilizers. Due to their participation in these metabolic activities and their capability to contribute to primary productivity, the microorganisms in such habitats have become of interest to investigate. Since Proteobacteria were previously found to be abundant and the waters are well aerated and organic-rich, this study on the presence of anoxygenic phototrophic bacteria, purple non-sulfur bacteria and aerobic anoxygenic phototrophs in marshes was initiated. One sample was collected at each of the seven Manitoban sites, and anoxygenic phototrophs were cultivated and enumerated. A group of 14 strains, which represented the phylogenetic diversity of the isolates, was physiologically investigated further. Aerobic anoxygenic phototrophs and purple non-sulfur bacteria were present at each location, and they belonged to the α- and β-Proteobacteria subphyla. Some were closely related to known heavy metal reducers (Brevundimonas) and xenobiotic decomposers (Novosphingobium and Sphingomonas). All were able to synthesize the photosynthetic complexes aerobically. This research highlights the diversity of and the potential contributions that anoxygenic phototrophs make to the essential functions taking place in wetlands. Full article
(This article belongs to the Section Environmental Microbiology)
Show Figures

Figure 1

16 pages, 838 KiB  
Systematic Review
Landiolol for Treatment of New-Onset Atrial Fibrillation in Critical Care: A Systematic Review
by Bruno Levy, Michel Slama, Ines Lakbar, Julien Maizel, Hiromi Kato, Marc Leone and Motoi Okada
J. Clin. Med. 2024, 13(10), 2951; https://doi.org/10.3390/jcm13102951 - 17 May 2024
Abstract
Background: new-onset atrial fibrillation remains a common complication in critical care settings, often necessitating treatment when the correction of triggers is insufficient to restore hemodynamics. The treatment strategy includes electric cardioversion in cases of hemodynamic instability and either rhythm control or rate [...] Read more.
Background: new-onset atrial fibrillation remains a common complication in critical care settings, often necessitating treatment when the correction of triggers is insufficient to restore hemodynamics. The treatment strategy includes electric cardioversion in cases of hemodynamic instability and either rhythm control or rate control in the absence of instability. Landiolol, an ultrashort beta-blocker, effectively controls heart rate with the potential to regulate rhythm. Objectives This review aims to compare the efficacy of landiolol in controlling heart rate and converting to sinus rhythm in the critical care setting. Methods: We conducted a comprehensive review of the published literature from 2000 to 2022 describing the use of landiolol to treat atrial fibrillation in critical care settings, excluding both cardiac surgery and medical cardiac care settings. The primary outcome assessed was sinus conversion following landiolol treatment. Results: Our analysis identified 17 publications detailing the use of landiolol for the treatment of 324 critical care patients. While the quality of the data was generally low, primarily comprising non-comparative studies, landiolol consistently demonstrated similar efficacy in controlling heart rate and facilitating conversion to sinus rhythm in both non-surgical (75.7%) and surgical (70.1%) settings. The incidence of hypotension associated with landiolol use was 13%. Conclusions: The use of landiolol in critical care patients with new-onset atrial fibrillation exhibited comparable efficacy and tolerance in both non-surgical and surgical settings. Despite these promising results, further validation through randomized controlled trials is necessary. Full article
(This article belongs to the Section Intensive Care)
Show Figures

Figure 1

21 pages, 1937 KiB  
Article
The Syntax of Speech Acts: Deictic Inversion as an Evidential Strategy in English
by Ana Ojea
Languages 2024, 9(5), 183; https://doi.org/10.3390/languages9050183 - 17 May 2024
Abstract
This paper presents empirical evidence to support the so-called syntactization of discourse, that is, the projection of relevant pragmatic features in the narrow syntax. In particular, it analyses deictic inversion in English, a construction which is used by the speaker to point at [...] Read more.
This paper presents empirical evidence to support the so-called syntactization of discourse, that is, the projection of relevant pragmatic features in the narrow syntax. In particular, it analyses deictic inversion in English, a construction which is used by the speaker to point at a proximal or distal location and bring the addressee’s attention to an entity related to that location (e.g., Here comes the bus). It offers a novel account of this construction, which takes it to be an evidential strategy in a language that does not have standard evidential markers; this evidential status explains its main differences with locative inversion, a construction with which it is pragmatically and structurally related. Deictic inversion therefore receives a natural explanation in a framework that maps syntax with the speech act and introduces in the derivation pragmatic information about the participants in the communicative exchange and about the source of the information for the proposition asserted. Full article
(This article belongs to the Special Issue Syntax and Discourse at the Crossroads)
3 pages, 149 KiB  
Editorial
Symmetry and Symmetry-Breaking in Fluid Dynamics
by Andrzej Herczyński and Roberto Zenit
Symmetry 2024, 16(5), 621; https://doi.org/10.3390/sym16050621 - 17 May 2024
Abstract
It may seem that the heading of this Special Issue of Symmetry—though narrower than the famous all-inclusive title of an essay by Jean-Paul Sartre, Being and Nothingness—encompasses most, if not all, fluid phenomena [...] Full article
(This article belongs to the Special Issue Symmetry and Symmetry-Breaking in Fluid Dynamics)
8 pages, 2707 KiB  
Communication
4-(Tris(4-methyl-1H-pyrazol-1-yl)methyl)aniline
by Bradley B. Garrison, Joseph E. Duhamel, Nehemiah Antoine, Steven J. K. Symes, Kyle A. Grice, Colin D. McMillen and Jared A. Pienkos
Molbank 2024, 2024(2), M1823; https://doi.org/10.3390/M1823 - 17 May 2024
Abstract
4-(tris(4-methyl-1H-pyrazol-1-yl)methyl)aniline was prepared in a 63% yield utilizing a C–F activation strategy from a mixture of 4-(trifluoromethyl)aniline, 4-methylpyrazole, and KOH in dimethylsulfoxide (DMSO). The identity of the product was confirmed by nuclear magnetic resonance spectroscopy, infrared spectroscopy, mass spectrometry, and single-crystal [...] Read more.
4-(tris(4-methyl-1H-pyrazol-1-yl)methyl)aniline was prepared in a 63% yield utilizing a C–F activation strategy from a mixture of 4-(trifluoromethyl)aniline, 4-methylpyrazole, and KOH in dimethylsulfoxide (DMSO). The identity of the product was confirmed by nuclear magnetic resonance spectroscopy, infrared spectroscopy, mass spectrometry, and single-crystal analysis. An analysis of crystals grown from the layering method (CH2Cl2/acetone/pentane) indicated two distinct polymorphs of the title compound. Moreover, density functional theory calculations utilizing the MN15L density functional and the def2-TZVP basis set indicated that 4-(tris(4-methyl-1H-pyrazol-1-yl)methyl)aniline forms with similar energetics to the previously reported unmethylated analog. Full article
(This article belongs to the Section Organic Synthesis)
Show Figures

Graphical abstract

20 pages, 1000 KiB  
Article
The Subtitling of Swearing: A Pilot Reception Study
by Willian Moura
Languages 2024, 9(5), 184; https://doi.org/10.3390/languages9050184 - 17 May 2024
Abstract
Reception studies in audiovisual translation seek to explore how translation choices affect the audience’s comprehension, emotional engagement, enjoyment, and overall viewing experience of audiovisual materials. This study focuses on the subtitling product and analyzes the acceptability of swear words translated through different stimuli: [...] Read more.
Reception studies in audiovisual translation seek to explore how translation choices affect the audience’s comprehension, emotional engagement, enjoyment, and overall viewing experience of audiovisual materials. This study focuses on the subtitling product and analyzes the acceptability of swear words translated through different stimuli: subtitles with softened, maintained, and intensified swearing, along with standard Netflix subtitles (control). Employing a multi-method approach, the study collected data through a survey, using questionnaires with a Likert scale and interviews, following the user-centered translation model to understand how participants receive and perceive swear words in subtitling. The results indicate that the control group had the highest acceptability of the participants, while the group with softened swear words presented the lowest acceptability rate. The analysis shows that participants across all groups reported that discomfort does not arise from reading the swear word in the subtitle but from perceiving a deliberate change in its offensive load—usually softened. The findings demonstrate that this change can lead to a breach of the contract of illusion in subtitling, as participants are exposed to the original dialogue and the translated subtitle simultaneously. In conclusion, when perceived, the change in the offensive load can redirect the viewer’s focus from the video to the subtitles, negatively affecting the enjoyment of the audiovisual experience. Full article
(This article belongs to the Special Issue New Studies in the Language of Taboos)
Show Figures

Figure 1

16 pages, 6539 KiB  
Article
Resonant Forcing by Solar Declination of Rossby Waves at the Tropopause and Implications in Extreme Events, Precipitation, and Heat Waves—Part 1: Theory
by Jean-Louis Pinault
Atmosphere 2024, 15(5), 608; https://doi.org/10.3390/atmos15050608 - 17 May 2024
Abstract
The purpose of this first article is to provide a physical basis for atmospheric Rossby waves at the tropopause to clarify their properties and improve our knowledge of their role in the genesis of extreme precipitation and heat waves. By analogy with the [...] Read more.
The purpose of this first article is to provide a physical basis for atmospheric Rossby waves at the tropopause to clarify their properties and improve our knowledge of their role in the genesis of extreme precipitation and heat waves. By analogy with the oceanic Rossby waves, the role played by the pycnocline in ocean Rossby waves is replaced here by the interface between the polar jet and the ascending air column at the meeting of the polar and Ferrel cell circulation or between the subtropical jet and the descending air column at the meeting of the Ferrel and Hadley cell circulation. In both cases, the Rossby waves are suitable for being resonantly forced in harmonic modes by tuning their natural period to the forcing period. Here, the forcing period is one year as a result of the variation in insolation due to solar declination. A search for cause-and-effect relationships is performed from the joint representation of the amplitude and phase of (1) the velocity of the cold or warm modulated airflows at 250 mb resulting from Rossby waves, (2) the geopotential height at 500 mb, and (3) the precipitation rate or ground air temperature. This is for the dominant harmonic mode whose period can be 1/16, 1/32, or 1/64 year, which reflects the intra-seasonal variations in the rising and falling air columns at the meeting of the polar, Ferrel, and Hadley cell circulation. Harmonics determine the duration of blocking. Two case studies referring to extreme cold and heat waves are presented. Dual cyclone–anticyclone systems seem to favor extreme events. They are formed by two joint vortices of opposite signs reversing over a period, concomitantly with the involved modulated airflows at the tropopause. A second article will be oriented toward (1) the examination of different case studies in order to ascertain the common characteristics of Rossby wave patterns leading to extreme events and (2) a map of the globe revealing future trends in the occurrence of extreme events. Full article
(This article belongs to the Special Issue Prediction and Modeling of Extreme Weather Events)
Show Figures

Figure 1

19 pages, 669 KiB  
Article
Development and Validation of Perception of Wisdom Exploratory Rating Scale: An Instrument to Examine Teachers’ Perceptions of Wisdom
by Sareh Karami, Andy Parra-Martinez, Mehdi Ghahremani and Marcia Gentry
Educ. Sci. 2024, 14(5), 542; https://doi.org/10.3390/educsci14050542 - 17 May 2024
Abstract
The purpose of this study was to develop and validate the Perception of Wisdom Exploratory Rating Scale based on the Polyhedron Model of Wisdom (PMW). A total number of 585 responses from in-service and preservice teachers was collected. In the EFA, the items [...] Read more.
The purpose of this study was to develop and validate the Perception of Wisdom Exploratory Rating Scale based on the Polyhedron Model of Wisdom (PMW). A total number of 585 responses from in-service and preservice teachers was collected. In the EFA, the items fit a seven-factor structure, producing the following subscales: knowledge management, self-regulation, moral maturity, openness, tolerance, sound judgment, and creative thinking. CFA was performed to test the construct validity of the scale. The model produced a good fit to the data (χ2/df = 1.67, CFI = 0.92, TLI = 0.91, RMSEA = 0.049, and SRMR = 0.06). With continued testing and revisions, this instrument could be useful for the cross-cultural comparison of perceptions of wisdom and identification of barriers to promoting wisdom instruction. Full article
Show Figures

Figure 1

7 pages, 161 KiB  
Article
Pondering Diversity in Contemporary Culture: Towards Establishing a Framework for a Dialogical Approach to Religious Education in Australian Catholic Schools
by Richard M. Rymarz
Religions 2024, 15(5), 617; https://doi.org/10.3390/rel15050617 - 17 May 2024
Abstract
This paper seeks to deepen the understanding of religious plurality using a range of conceptual lenses and then to draw out some implications for a dialogical approach to religious education in Catholic schools. While what was, until very recent times, seen as conventional [...] Read more.
This paper seeks to deepen the understanding of religious plurality using a range of conceptual lenses and then to draw out some implications for a dialogical approach to religious education in Catholic schools. While what was, until very recent times, seen as conventional religious affiliation has certainly weakened in Australia and elsewhere, this does not necessarily lead to a multiplication of communal beliefs, practices and values. Following Smith, Inglehart and others, what has emerged is a dominant cultural hegemony which has a range of characteristics, but the most pertinent for the discussion here is the loss of the transcendent imperative and the subsequent decline in the knowledge of, and identification with, narratives associated with once-dominant religious communities. An understanding of diversity in the current cultural milieu in Australia needs to consider this hegemony as expressed in a commonality of beliefs, values and practices regardless of expressed affiliation, religious or not. Understanding diversity in this framework establishes a basis for better considering what a dialogical approach to religious education would involve. A dialogical approach to religious education is taken as a settled norm and not one that is heavily contested. A number of the implications of the proposed understanding of diversity for religious education are given. These include following a Vygotskian scaffolded approach to pedagogy and seeing an important place for the articulation of the home religious tradition. Full article
8 pages, 944 KiB  
Article
Heat Bath in a Quantum Circuit
by Jukka P. Pekola and Bayan Karimi
Entropy 2024, 26(5), 429; https://doi.org/10.3390/e26050429 - 17 May 2024
Abstract
We discuss the concept and realization of a heat bath in solid state quantum systems. We demonstrate that, unlike a true resistor, a finite one-dimensional Josephson junction array or analogously a transmission line with non-vanishing frequency spacing, commonly considered as a reservoir of [...] Read more.
We discuss the concept and realization of a heat bath in solid state quantum systems. We demonstrate that, unlike a true resistor, a finite one-dimensional Josephson junction array or analogously a transmission line with non-vanishing frequency spacing, commonly considered as a reservoir of a quantum circuit, does not strictly qualify as a Caldeira–Leggett type dissipative environment. We then consider a set of quantum two-level systems as a bath, which can be realized as a collection of qubits. We show that only a dense and wide distribution of energies of the two-level systems can secure long Poincare recurrence times characteristic of a proper heat bath. An alternative for this bath is a collection of harmonic oscillators, for instance, in the form of superconducting resonators. Full article
(This article belongs to the Special Issue Advances in Quantum Thermodynamics)
Show Figures

Figure 1

17 pages, 6248 KiB  
Article
Inhibition of Drp1–Filamin Protein Complex Prevents Hepatic Lipid Droplet Accumulation by Increasing Mitochondria–Lipid Droplet Contact
by Kohei Ariyoshi, Kazuhiro Nishiyama, Yuri Kato, Xinya Mi, Tomoya Ito, Yasu-Taka Azuma, Akiyuki Nishimura and Motohiro Nishida
Int. J. Mol. Sci. 2024, 25(10), 5446; https://doi.org/10.3390/ijms25105446 - 17 May 2024
Abstract
Lipid droplet (LD) accumulation in hepatocytes is one of the major symptoms associated with fatty liver disease. Mitochondria play a key role in catabolizing fatty acids for energy production through β-oxidation. The interplay between mitochondria and LD assumes a crucial role in lipid [...] Read more.
Lipid droplet (LD) accumulation in hepatocytes is one of the major symptoms associated with fatty liver disease. Mitochondria play a key role in catabolizing fatty acids for energy production through β-oxidation. The interplay between mitochondria and LD assumes a crucial role in lipid metabolism, while it is obscure how mitochondrial morphology affects systemic lipid metabolism in the liver. We previously reported that cilnidipine, an already existing anti-hypertensive drug, can prevent pathological mitochondrial fission by inhibiting protein–protein interaction between dynamin-related protein 1 (Drp1) and filamin, an actin-binding protein. Here, we found that cilnidipine and its new dihydropyridine (DHP) derivative, 1,4-DHP, which lacks Ca2+ channel-blocking action of cilnidipine, prevent the palmitic acid-induced Drp1–filamin interaction, LD accumulation and cytotoxicity of human hepatic HepG2 cells. Cilnidipine and 1,4-DHP also suppressed the LD accumulation accompanied by reducing mitochondrial contact with LD in obese model and high-fat diet-fed mouse livers. These results propose that targeting the Drp1–filamin interaction become a new strategy for the prevention or treatment of fatty liver disease. Full article
Show Figures

Figure 1

9 pages, 411 KiB  
Article
Time of Birth and the Risk of Adverse Maternal and Neonatal Outcomes—A Retrospective Cohort Study
by Anat Schwartz, Shiri Shinar, Amit Iton-Schwartz, Ronella Marom, Dror Mandel, Ayelet Dangot and Ariel Many
J. Clin. Med. 2024, 13(10), 2952; https://doi.org/10.3390/jcm13102952 - 17 May 2024
Abstract
Objectives: To determine whether in a labor floor housed continuously by senior physicians the risk of adverse maternal and neonatal outcome is affected by time of delivery. Methods: This retrospective cohort study, conducted at a tertiary medical center, assessed singleton term deliveries from [...] Read more.
Objectives: To determine whether in a labor floor housed continuously by senior physicians the risk of adverse maternal and neonatal outcome is affected by time of delivery. Methods: This retrospective cohort study, conducted at a tertiary medical center, assessed singleton term deliveries from 1 January 2011 to 30 January 2020. Participants were categorized based on delivery timing, correlating with nursing shifts, to evaluate perinatal outcomes. The primary endpoint included adverse maternal outcomes such as emergency Cesarean section, anal sphincter injuries, blood product transfusions, and postpartum surgeries (laparotomy/laparoscopy). Secondary outcomes focused on neonatal health indicators, including low Apgar scores, ICU admissions, respiratory issues, extended hospital stays, and neurological complications. Results: 87,863 deliveries were available for analysis with equal distribution during the day. The risk of adverse composite maternal outcome was highest during the evening (aOR 1.25, 95% CI 1.18–1.32) and lowest during the night (aOR 0.94, 95% CI 0.88–0.99) compared to daytime deliveries. This difference was primarily driven by the highest rate of emergency CD in the evening. Neonatal outcomes were comparable, except for length of stay > 5 days, which was more frequent among newborns delivered during the evening and night shifts compared to the morning shift (aOR 1.19, 95% CI 1.07–1.33 and aOR 1.17, 95% CI 1.05–1.31, respectively). Conclusions: In term pregnancies, the evening shift is associated with the highest risk of adverse maternal and neonatal outcomes despite physician seniority. Full article
(This article belongs to the Special Issue Management of Pregnancy Complications)
Show Figures

Figure 1

9 pages, 1277 KiB  
Brief Report
Rational Antibiotic Prescribing Is Underpinned by Dental Ethics Principles: Survey on Postgraduate and Undergraduate Dental Students’ Perceptions
by Jelena Roganović and Milena Barać
Antibiotics 2024, 13(5), 460; https://doi.org/10.3390/antibiotics13050460 - 17 May 2024
Abstract
Background: Dentists bear the burden of responsibility for antimicrobial resistance since antibiotics are the drugs most prescribed by dentists. Often, “inappropriate” antibiotic use is considered as a “gray area” by dentists mainly due to ethical challenges associated with the clinical judgement depending on [...] Read more.
Background: Dentists bear the burden of responsibility for antimicrobial resistance since antibiotics are the drugs most prescribed by dentists. Often, “inappropriate” antibiotic use is considered as a “gray area” by dentists mainly due to ethical challenges associated with the clinical judgement depending on patients and/or prescribers. Aim: The study aimed to assess whether and in what way dental ethical principles underpin rational antibiotic use by investigating perceptions of postgraduate and undergraduate dental students without formal knowledge of dental ethics. Method: A cross-sectional anonymous survey comprised nine close-ended questions and was conducted among dental students (n = 125). The investigated practice of appropriate antibiotic prescribing in the survey relied on the respect of three basic principles of ethics: autonomy, non-maleficence, and beneficence. Results: Results show that dental students exhibit a lack of dental ethics knowledge that results in an inappropriate antibiotic-prescribing practice: prescribing an antibiotic when it is not necessary, without examination, or for indications that are not within the competence of the dentist. Multivariate regression analysis revealed that there was a significant difference between under- and postgraduates. Conclusions: Within the pharmacology course, a review of the clinical scenarios which cover both ethical and clinical complexities regarding the appropriate use of antibiotics should be introduced as an educational approach. Full article
Show Figures

Figure 1

14 pages, 3327 KiB  
Article
Load Prediction in Double-Channel Residual Self-Attention Temporal Convolutional Network with Weight Adaptive Updating in Cloud Computing
by Jiang Lin and Yepeng Guan
Sensors 2024, 24(10), 3181; https://doi.org/10.3390/s24103181 - 17 May 2024
Abstract
When resource demand increases and decreases rapidly, container clusters in the cloud environment need to respond to the number of containers in a timely manner to ensure service quality. Resource load prediction is a prominent challenge issue with the widespread adoption of cloud [...] Read more.
When resource demand increases and decreases rapidly, container clusters in the cloud environment need to respond to the number of containers in a timely manner to ensure service quality. Resource load prediction is a prominent challenge issue with the widespread adoption of cloud computing. A novel cloud computing load prediction method has been proposed, the Double-channel residual Self-attention Temporal convolutional Network with Weight adaptive updating (DSTNW), in order to make the response of the container cluster more rapid and accurate. A Double-channel Temporal Convolution Network model (DTN) has been developed to capture long-term sequence dependencies and enhance feature extraction capabilities when the model handles long load sequences. Double-channel dilated causal convolution has been adopted to replace the single-channel dilated causal convolution in the DTN. A residual temporal self-attention mechanism (SM) has been proposed to improve the performance of the network and focus on features with significant contributions from the DTN. DTN and SM jointly constitute a dual-channel residual self-attention temporal convolutional network (DSTN). In addition, by evaluating the accuracy aspects of single and stacked DSTNs, an adaptive weight strategy has been proposed to assign corresponding weights for the single and stacked DSTNs, respectively. The experimental results highlight that the developed method has outstanding prediction performance for cloud computing in comparison with some state-of-the-art methods. The proposed method achieved an average improvement of 24.16% and 30.48% on the Container dataset and Google dataset, respectively. Full article
(This article belongs to the Section Sensor Networks)
Show Figures

Figure 1

9 pages, 534 KiB  
Perspective
Proposed Screening for Congenital Hyperinsulinism in Newborns: Perspective from a Neonatal–Perinatal Medicine Group
by Jeffrey R. Kaiser, Shaili Amatya, Rebecca J. Burke, Tammy E. Corr, Nada Darwish, Chintan K. Gandhi, Adrienne Gasda, Kristen M. Glass, Mitchell J. Kresch, Sarah M. Mahdally, Maria T. McGarvey, Sara J. Mola, Yuanyi L. Murray, Katie Nissly, Nanyaly M. Santiago-Aponte, Jazmine C. Valencia and Timothy W. Palmer
J. Clin. Med. 2024, 13(10), 2953; https://doi.org/10.3390/jcm13102953 - 17 May 2024
Abstract
This perspective work by academic neonatal providers is written specifically for the audience of newborn care providers and neonatologists involved in neonatal hypoglycemia screening. Herein, we propose adding a screen for congenital hyperinsulinism (CHI) by measuring glucose and ketone (i.e., β-hydroxybutyrate (BOHB)) concentrations [...] Read more.
This perspective work by academic neonatal providers is written specifically for the audience of newborn care providers and neonatologists involved in neonatal hypoglycemia screening. Herein, we propose adding a screen for congenital hyperinsulinism (CHI) by measuring glucose and ketone (i.e., β-hydroxybutyrate (BOHB)) concentrations just prior to newborn hospital discharge and as close to 48 h after birth as possible, at the same time that the mandated state Newborn Dried Blood Spot Screen is obtained. In the proposed protocol, we do not recommend specific metabolite cutoffs, as our primary objective is to simply highlight the concept of screening for CHI in newborns to newborn caregivers. The premise for our proposed screen is based on the known effect of hyperinsulinism in suppressing ketogenesis, thereby limiting ketone production. We will briefly discuss genetic CHI, other forms of neonatal hypoglycemia, and their shared mechanisms; the mechanism of insulin regulation by functional pancreatic islet cell membrane KATP channels; adverse neurodevelopmental sequelae and brain injury due to missing or delaying the CHI diagnosis; the principles of a good screening test; how current neonatal hypoglycemia screening programs do not fulfill the criteria for being effective screening tests; and our proposed algorithm for screening for CHI in newborns. Full article
(This article belongs to the Special Issue Current Trends in Pediatric Endocrinology)
Show Figures

Figure 1

10 pages, 602 KiB  
Communication
Discovery of Pathogenic Variants Associated with Idiopathic Recurrent Pregnancy Loss Using Whole-Exome Sequencing
by Jeong Yong Lee, JaeWoo Moon, Hae-Jin Hu, Chang Soo Ryu, Eun Ju Ko, Eun Hee Ahn, Young Ran Kim, Ji Hyang Kim and Nam Keun Kim
Int. J. Mol. Sci. 2024, 25(10), 5447; https://doi.org/10.3390/ijms25105447 - 17 May 2024
Abstract
Idiopathic recurrent pregnancy loss (RPL) is defined as at least two pregnancy losses before 20 weeks of gestation. Approximately 5% of pregnant couples experience idiopathic RPL, which is a heterogeneous disease with various causes including hormonal, chromosomal, and intrauterine abnormalities. Although how pregnancy [...] Read more.
Idiopathic recurrent pregnancy loss (RPL) is defined as at least two pregnancy losses before 20 weeks of gestation. Approximately 5% of pregnant couples experience idiopathic RPL, which is a heterogeneous disease with various causes including hormonal, chromosomal, and intrauterine abnormalities. Although how pregnancy loss occurs is still unknown, numerous biological factors are associated with the incidence of pregnancy loss, including genetic variants. Whole-exome sequencing (WES) was conducted on blood samples from 56 Korean patients with RPL and 40 healthy controls. The WES data were aligned by means of bioinformatic analysis, and the detected variants were annotated using machine learning tools to predict the pathogenicity of protein alterations. Each indicated variant was confirmed using Sanger sequencing. A replication study was also conducted in 112 patients and 114 controls. The Variant Effect Scoring Tool, Combined Annotation Dependent Depletion tool, Sorting Intolerant from Tolerant annotation tool, and various databases detected 10 potential variants previously associated with spontaneous abortion genes in patients by means of a bioinformatic analysis of WES data. Several variants were detected in more than one patient. Interestingly, several of the detected genes were functionally clustered, including some with a secretory function (mucin 4; MUC4; rs200737893 G>A and hyaluronan-binding protein 2; HABP2; rs542838125 G>T), in which growth arrest-specific 2 Like 2 (GAS2L2; rs140842796 C>T) and dynamin 2 (DNM2; rs763894364 G>A) are functionally associated with cell protrusion and the cytoskeleton. ATP Binding Cassette Subfamily C Member 6 (ABCC6) was the only gene with two variants. HABP2 (rs542838125 G>T), MUC4 (rs200737893 G>A), and GAS2L2 (rs140842796 C>T) were detected in only the patient group in the replication study. The combination of WES and machine learning tools is a useful method to detect potential variants associated with RPL. Using bioinformatic tools, we found 10 potential variants in 9 genes. WES data from patients are needed to better understand the causes of RPL. Full article
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
Show Figures

Figure 1

24 pages, 2621 KiB  
Article
Genomic Context of SARS-CoV-2 Outbreaks in Farmed Mink in Spain during Pandemic: Unveiling Host Adaptation Mechanisms
by María Iglesias-Caballero, Vicente Mas, Sonia Vázquez-Morón, Mónica Vázquez, Sara Camarero-Serrano, Olga Cano, Concepción Palomo, María José Ruano, Cristina Cano-Gómez, José Antonio Infantes-Lorenzo, Albert Campoy, Montserrat Agüero, Francisco Pozo and Inmaculada Casas
Int. J. Mol. Sci. 2024, 25(10), 5499; https://doi.org/10.3390/ijms25105499 (registering DOI) - 17 May 2024
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects various mammalian species, with farmed minks experiencing the highest number of outbreaks. In Spain, we analyzed 67 whole genome sequences and eight spike sequences from 18 outbreaks, identifying four distinct lineages: B.1, B.1.177, B.1.1.7, and [...] Read more.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects various mammalian species, with farmed minks experiencing the highest number of outbreaks. In Spain, we analyzed 67 whole genome sequences and eight spike sequences from 18 outbreaks, identifying four distinct lineages: B.1, B.1.177, B.1.1.7, and AY.98.1. The potential risk of transmission to humans raises crucial questions about mutation accumulation and its impact on viral fitness. Sequencing revealed numerous not-lineage-defining mutations, suggesting a cumulative mutation process during the outbreaks. We observed that the outbreaks were predominantly associated with different groups of mutations rather than specific lineages. This clustering pattern by the outbreaks could be attributed to the rapid accumulation of mutations, particularly in the ORF1a polyprotein and in the spike protein. Notably, the mutations G37E in NSP9, a potential host marker, and S486L in NSP13 were detected. Spike protein mutations may enhance SARS-CoV-2 adaptability by influencing trimer stability and binding to mink receptors. These findings provide valuable insights into mink coronavirus genetics, highlighting both host markers and viral transmission dynamics within communities. Full article
13 pages, 896 KiB  
Article
Remission Factors for Ustekinumab Treatment of Ulcerative Colitis: A Multicenter Retrospective Study of Real-World Data in Japan
by Masashi Omori, Tomoyoshi Shibuya, Hirotaka Ishino, Yuka Fukuo, Rina Odakura, Masao Koma, Takafumi Maruyama, Kentaro Ito, Mayuko Haraikawa, Kei Nomura, Shintaro Yano, Osamu Nomura, Dai Ishikawa, Mariko Hojo, Taro Osada and Akihito Nagahara
Biomedicines 2024, 12(5), 1119; https://doi.org/10.3390/biomedicines12051119 (registering DOI) - 17 May 2024
Abstract
Ustekinumab (UST) is an anti–IL-12/23p40 monoclonal antibody used to treat inflammatory bowel disease. The aim of this retrospective, multicenter study was to investigate the effectiveness of UST administration in achieving remission in patients with ulcerative colitis (UC) and to determine patient characteristics that [...] Read more.
Ustekinumab (UST) is an anti–IL-12/23p40 monoclonal antibody used to treat inflammatory bowel disease. The aim of this retrospective, multicenter study was to investigate the effectiveness of UST administration in achieving remission in patients with ulcerative colitis (UC) and to determine patient characteristics that influence its effectiveness. Of 88 UC patients who received UST from March 2020 to August 2023, 47 with traceable data and for whom 56 weeks had elapsed since the start of treatment received UST to induce remission. The remission rates at 8 weeks were 66% overall, 73.7% for Bio Naïve (never used biologics/JAK inhibitors), and 60.7% for Bio Failure (used biologics/JAK inhibitors) groups. Remission rates at 56 weeks were 70.2% overall, 73.7% for Bio Naïve, and 67.9% for Bio Failure groups. Ustekinumab showed good mid-to-long-term results in the induction of remission of UC in both Bio Naïve and Bio Failure groups. The group showing remission at 8 weeks had a significantly higher non-relapse or continuation rate (proportion of patients with no worsened symptoms necessitating surgery/drug change) at 56 weeks. Predictive factors for achieving remission after UST in UC were female gender, low body mass index, and low lymphocyte-to-monocyte ratio. Thus, UST is effective for moderate-to-severe UC. Full article
(This article belongs to the Special Issue Emerging Trends in Gastrointestinal Tract Disease Therapies)
21 pages, 355 KiB  
Article
Exponential Stability of the Numerical Solution of a Hyperbolic System with Nonlocal Characteristic Velocities
by Rakhmatillo Djuraevich Aloev, Abdumauvlen Suleimanovich Berdyshev, Vasila Alimova and Kymbat Slamovna Bekenayeva
Axioms 2024, 13(5), 334; https://doi.org/10.3390/axioms13050334 (registering DOI) - 17 May 2024
Abstract
In this paper, we investigate the problem of the exponential stability of a stationary solution for a hyperbolic system with nonlocal characteristic velocities and measurement error. The formulation of the initial boundary value problem of boundary control for the specified hyperbolic system is [...] Read more.
In this paper, we investigate the problem of the exponential stability of a stationary solution for a hyperbolic system with nonlocal characteristic velocities and measurement error. The formulation of the initial boundary value problem of boundary control for the specified hyperbolic system is given. A difference scheme is constructed for the numerical solution of the considered initial boundary value problem. The definition of the exponential stability of the numerical solution in 2-norm with respect to a discrete perturbation of the equilibrium state of the initial boundary value difference problem is given. A discrete Lyapunov function for a numerical solution is constructed, and a theorem on the exponential stability of a stationary solution of the initial boundary value difference problem in 2-norm with respect to a discrete perturbation is proved. Full article
(This article belongs to the Special Issue Difference, Functional, and Related Equations)

Open Access Journals

Browse by Indexing Browse by Subject Selected Journals
Back to TopTop