The 2023 MDPI Annual Report has
been released!
 
18 pages, 1411 KiB  
Article
Management of Secondary Metabolite Synthesis and Biomass in Basil (Ocimum basilicum L.) Microgreens Using Different Continuous-Spectrum LED Lights
by Mohammad Reza Fayezizadeh, Naser Alemzadeh Ansari, Mohammad Mahmoodi Sourestani, Masayuki Fujita and Mirza Hasanuzzaman
Plants 2024, 13(10), 1394; https://doi.org/10.3390/plants13101394 (registering DOI) - 17 May 2024
Abstract
Different LED light spectra (LS) are absorbed by different plant photoreceptors and can control biomass and plant secondary metabolite synthesis. In this study, the effects of continuous-spectrum LED lights (red, blue, white, red + blue, and 12 h blue + 12 h red) [...] Read more.
Different LED light spectra (LS) are absorbed by different plant photoreceptors and can control biomass and plant secondary metabolite synthesis. In this study, the effects of continuous-spectrum LED lights (red, blue, white, red + blue, and 12 h blue + 12 h red) on the production value, antioxidant compounds, and biomass of basil (Ocimum basilicum L.) microgreens (Red Rubin, Violeto, and Kapoor cultivars and the Ablagh genotype) were investigated. The results showed significant effects of LS on cultivar (Cv) and the interaction of LS and Cv on the studied traits. The highest quantitys of chlorophyll a, total chlorophyll, and nitrate were obtained in Violeto under blue lighting. Red lighting enhanced starch synthesis in Red Rubin and flavonoids in the Violeto Cv. The highest biomass (4.54 kg m−2) was observed in the Ablagh genotype and the highest carbohydrate synthesis in Violeto Cv in the red + blue treatment. The highest anthocyanin content (26.33 mg 100 g−1 FW) was observed for Red Rubin Cv under 12 h blue + 12 h red light. The greatest antioxidant capacity (83.57% inhibition), the highest levels of phenolic compounds (2027.25 mg GA 100 g−1 FW), vitamin C (405.76 mg 100 g−1 FW), proline, antioxidant potential composite index (APCI), and the greatest production values were obtained for the Ablagh genotype under blue lighting. Taken together, the experiment findings indicate that growing the Ablagh genotype under continuous blue lighting can increase the antioxidant capacity, phenolic compounds, and vitamin C and that this LED light spectrum can be used as a practical method to produce basil microgreens with high nutritional health value. Full article
(This article belongs to the Collection Feature Papers in Plant Physiology and Metabolism)
Show Figures

Figure 1

15 pages, 4046 KiB  
Article
Preparation and Hydration Properties of Sodium Silicate-Activated Municipal Solid Waste Incineration Bottom Ash Composite Ground-Granulated Blast Furnace Slag Cementitious Materials
by Juan Deng, Guoxiong Wu, Yuchao Xia and Li Liu
Materials 2024, 17(10), 2406; https://doi.org/10.3390/ma17102406 (registering DOI) - 17 May 2024
Abstract
The production of municipal solid waste incineration bottom ash (MSWIBA) is substantial and has the potential to replace cement, despite challenges such as complex composition, uneven particle size distribution, and low reactivity. This paper employs sodium silicate activation of MSWIBA composite Ground-granulated Blast [...] Read more.
The production of municipal solid waste incineration bottom ash (MSWIBA) is substantial and has the potential to replace cement, despite challenges such as complex composition, uneven particle size distribution, and low reactivity. This paper employs sodium silicate activation of MSWIBA composite Ground-granulated Blast Furnace slag (GGBS) to improve the reactivity in preparing composite cementitious materials. It explores the hydration performance of the composite cementitious materials using isothermal calorimetric analysis, Fourier-transform infrared (FTIR) spectroscopy, XRD physical diffraction analysis, and SEM tests. SEM tests were used to explore the hydration properties of the composite gelling. The results show that with an increase in MSWIBA doping, the porosity between the materials increased, the degree of hydration decreased, and the compressive strength decreased. When the sodium silicate concentration increased from 25% to 35%, excessive alkaline material occurred, impacting the alkaline effect. This inhibited particle hydration, leading to a decrease in the degree of hydration and, consequently, the compressive strength. The exothermic process of hydration can be divided into five main stages; quartz and calcite did not fully participate in the hydration reaction, while aluminum did. The vibrational peaks of Si-O-Ti (T = Si and Al) were present in the material. The vibrational peaks of XRD, FTIR, and SEM all indicate the presence of alumosilicate network structures in the hydration products, mainly N-A-S-H and C-A-S-H gels. Full article
(This article belongs to the Special Issue Sustainable Recycling Techniques of Pavement Materials II)
Show Figures

Figure 1

14 pages, 253 KiB  
Article
Faith, Knowledge, and the Ausgang of Classical German Philosophy: Jacobi, Hegel, Feuerbach
by Todd Gooch
Religions 2024, 15(5), 618; https://doi.org/10.3390/rel15050618 (registering DOI) - 17 May 2024
Abstract
This article revisits Feuerbach’s “break with speculation” in the early 1840s in light of issues raised by the original Pantheism Controversy, initiated in 1785 by the publication of Friedrich Heinrich Jacobi’s Letters on the Doctrine of Spinoza. The article first describes the [...] Read more.
This article revisits Feuerbach’s “break with speculation” in the early 1840s in light of issues raised by the original Pantheism Controversy, initiated in 1785 by the publication of Friedrich Heinrich Jacobi’s Letters on the Doctrine of Spinoza. The article first describes the concerns underlying Jacobi’s repudiation of Spinozism, and rationalism more generally, in favor of a personalistic theism that disclaims the possibility of philosophical knowledge of God. It goes on to reconstruct Hegel’s alternative to Jacobi’s famous salto mortale before considering how Feuerbach’s critique of Hegel’s philosophy of religion, as well as the personalism of the so-called Positive Philosophy (inspired by the late Schelling), was influenced by both Spinoza and Jacobi in ways that have not yet received sufficient attention. Full article
(This article belongs to the Special Issue The Impact of German Idealism on Religion)
24 pages, 951 KiB  
Review
Emerging Strategies in Mesenchymal Stem Cell-Based Cardiovascular Therapeutics
by Rishabh Kumar, Nitin Mishra, Talan Tran, Munish Kumar, Sivakumar Vijayaraghavalu and Narasimman Gurusamy
Cells 2024, 13(10), 855; https://doi.org/10.3390/cells13100855 (registering DOI) - 17 May 2024
Abstract
Cardiovascular diseases continue to challenge global health, demanding innovative therapeutic solutions. This review delves into the transformative role of mesenchymal stem cells (MSCs) in advancing cardiovascular therapeutics. Beginning with a historical perspective, we trace the development of stem cell research related to cardiovascular [...] Read more.
Cardiovascular diseases continue to challenge global health, demanding innovative therapeutic solutions. This review delves into the transformative role of mesenchymal stem cells (MSCs) in advancing cardiovascular therapeutics. Beginning with a historical perspective, we trace the development of stem cell research related to cardiovascular diseases, highlighting foundational therapeutic approaches and the evolution of cell-based treatments. Recognizing the inherent challenges of MSC-based cardiovascular therapeutics, which range from understanding the pro-reparative activity of MSCs to tailoring patient-specific treatments, we emphasize the need to refine the pro-regenerative capacity of these cells. Crucially, our focus then shifts to the strategies of the fourth generation of cell-based therapies: leveraging the secretomic prowess of MSCs, particularly the role of extracellular vesicles; integrating biocompatible scaffolds and artificial sheets to amplify MSCs’ potential; adopting three-dimensional ex vivo propagation tailored to specific tissue niches; harnessing the promise of genetic modifications for targeted tissue repair; and institutionalizing good manufacturing practice protocols to ensure therapeutic safety and efficacy. We conclude with reflections on these advancements, envisaging a future landscape redefined by MSCs in cardiovascular regeneration. This review offers both a consolidation of our current understanding and a view toward imminent therapeutic horizons. Full article
(This article belongs to the Collection Stem Cells in Tissue Engineering and Regeneration)
Show Figures

Figure 1

3 pages, 148 KiB  
Editorial
Exosomes/Extracellular Vesicles and Targeted Tumor Immunotherapy
by Chiara Corrado and Simona Fontana
Int. J. Mol. Sci. 2024, 25(10), 5458; https://doi.org/10.3390/ijms25105458 (registering DOI) - 17 May 2024
Abstract
This Special Issue intends to underscore several topics related to cellular signaling transduction, considering the consensus that nowadays, the best scientific approach for the prevention, diagnosis, and treatment of several diseases is the study of the regulatory networks that determine the response to [...] Read more.
This Special Issue intends to underscore several topics related to cellular signaling transduction, considering the consensus that nowadays, the best scientific approach for the prevention, diagnosis, and treatment of several diseases is the study of the regulatory networks that determine the response to therapy and the maintenance of homeostasis or its dysregulation [...] Full article
(This article belongs to the Special Issue Cellular Signalling Transduction)
15 pages, 3789 KiB  
Article
The Role of TLR-2 in Lethal COVID-19 Disease Involving Medullary and Resident Lung Megakaryocyte Up-Regulation in the Microthrombosis Mechanism
by Giuseppe Pannone, Maria Carmela Pedicillo, Ilenia Sara De Stefano, Francesco Angelillis, Raffaele Barile, Chiara Pannone, Giuliana Villani, Francesco Miele, Maurizio Municinò, Andrea Ronchi, Gaetano Serviddio, Federica Zito Marino, Renato Franco, Tommaso Colangelo and Rosanna Zamparese
Cells 2024, 13(10), 854; https://doi.org/10.3390/cells13100854 (registering DOI) - 17 May 2024
Abstract
Patients with COVID-19 have coagulation and platelet disorders, with platelet alterations and thrombocytopenia representing negative prognostic parameters associated with severe forms of the disease and increased lethality. Methods: The aim of this study was to study the expression of platelet glycoprotein IIIa (CD61), [...] Read more.
Patients with COVID-19 have coagulation and platelet disorders, with platelet alterations and thrombocytopenia representing negative prognostic parameters associated with severe forms of the disease and increased lethality. Methods: The aim of this study was to study the expression of platelet glycoprotein IIIa (CD61), playing a critical role in platelet aggregation, together with TRL-2 as a marker of innate immune activation. Results: A total of 25 patients were investigated, with the majority (24/25, 96%) having co-morbidities and dying from a fatal form of SARS-CoV-2(+) infection (COVID-19+), with 13 men and 12 females ranging in age from 45 to 80 years. When compared to a control group of SARS-CoV-2 (−) negative lungs (COVID-19−), TLR-2 expression was up-regulated in a subset of patients with deadly COVID-19 fatal lung illness. The proportion of Spike-1 (+) patients found by PCR and ISH correlates to the proportion of Spike-S1-positive cases as detected by digital pathology examination. Furthermore, CD61 expression was considerably higher in the lungs of deceased patients. In conclusion, we demonstrate that innate immune prolonged hyperactivation is related to platelet/megakaryocyte over-expression in the lung. Conclusions: Microthrombosis in deadly COVID-19+ lung disease is associated with an increase in the number of CD61+ platelets and megakaryocytes in the pulmonary interstitium, as well as their functional activation; this phenomenon is associated with increased expression of innate immunity TLR2+ cells, which binds the SARS-CoV-2 E protein, and significantly with the persistence of the Spike-S1 viral sequence. Full article
Show Figures

Figure 1

13 pages, 916 KiB  
Review
Rebound Acid Hypersecretion after Withdrawal of Long-Term Proton Pump Inhibitor (PPI) Treatment—Are PPIs Addictive?
by Ken Namikawa and Einar Stefan Björnsson
Int. J. Mol. Sci. 2024, 25(10), 5459; https://doi.org/10.3390/ijms25105459 (registering DOI) - 17 May 2024
Abstract
Proton pump inhibitors (PPIs) are widely used in the long-term treatment of gastroesophageal reflux disease (GERD) and other upper gastrointestinal disorders, such as the healing of peptic ulcers and/or prophylactic treatment of peptic ulcers. PPIs are also widely used as symptomatic treatment in [...] Read more.
Proton pump inhibitors (PPIs) are widely used in the long-term treatment of gastroesophageal reflux disease (GERD) and other upper gastrointestinal disorders, such as the healing of peptic ulcers and/or prophylactic treatment of peptic ulcers. PPIs are also widely used as symptomatic treatment in patients with functional dyspepsia. One of the adverse effects of the long-term use of PPI is rebound acid hypersecretion (RAHS), which can occur after the withdrawal of PPI therapy due to a compensatory increase in gastric acid production. Mechanisms of the RAHS have been well established. Studies have shown that pentagastrin-stimulated acid secretion after the discontinuation of PPIs increased significantly compared to that before treatment. In healthy volunteers treated with PPIs, the latter induced gastrointestinal symptoms in 40–50% of subjects after the discontinuation of PPI therapy but after stopping the placebo. It is important for practicing physicians to be aware and understand the underlying mechanisms and inform patients about potential RAHS before discontinuing PPIs in order to avoid continuing unnecessary PPI therapy. This is important because RAHS may lead patients to reuptake PPIs as symptoms are incorrectly thought to originate from the recurrence of underlying conditions, such as GERD. Mechanisms of RAHS have been well established; however, clinical implications and the risk factors for RAHS are not fully understood. Further research is needed to facilitate appropriate management of RAHS in the future. Full article
Show Figures

Figure 1

9 pages, 624 KiB  
Commentary
Need for Behavioral Interventions for Young Adults Living with Advanced Cancer in the U.S.
by Lisa M. Gudenkauf, Rina S. Fox, Brian D. Gonzalez, Heather S. L. Jim, John M. Salsman, David E. Victorson, Stacy D. Sanford and Laura B. Oswald
Cancers 2024, 16(10), 1910; https://doi.org/10.3390/cancers16101910 (registering DOI) - 17 May 2024
Abstract
The population of young adults (YAs) aged 18–39 living with advanced cancer is growing and faces a compounded set of challenges at the intersection of age and disease. Despite these substantial challenges, behavioral interventions tailored to YAs living with advanced cancer remain scarce. [...] Read more.
The population of young adults (YAs) aged 18–39 living with advanced cancer is growing and faces a compounded set of challenges at the intersection of age and disease. Despite these substantial challenges, behavioral interventions tailored to YAs living with advanced cancer remain scarce. This commentary aims to (1) discuss the unmet psychological, social, and behavioral needs of YAs living with advanced cancer; (2) highlight the paucity of behavioral interventions tailored to this growing population; (3) offer recommendations for the development of behavioral interventions targeting the unique needs of YAs living with advanced cancer; and (4) describe potential far-reaching public health benefits of these targeted behavioral interventions. Full article
(This article belongs to the Section Pediatric Oncology)
Show Figures

Figure 1

27 pages, 44489 KiB  
Review
Recent Developments on CO2 Hydrogenation Performance over Structured Zeolites: A Review on Properties, Synthesis, and Characterization
by Methene Briones Cutad, Mohammed J. Al-Marri and Anand Kumar
Catalysts 2024, 14(5), 328; https://doi.org/10.3390/catal14050328 (registering DOI) - 17 May 2024
Abstract
This review focuses on an extensive synopsis of the recent improvements in CO2 hydrogenation over structured zeolites, including their properties, synthesis methods, and characterization. Key features such as bimodal mesoporous structures, surface oxygen vacancies, and the Si/Al ratio are explored for their [...] Read more.
This review focuses on an extensive synopsis of the recent improvements in CO2 hydrogenation over structured zeolites, including their properties, synthesis methods, and characterization. Key features such as bimodal mesoporous structures, surface oxygen vacancies, and the Si/Al ratio are explored for their roles in enhancing catalytic activity. Additionally, the impact of porosity, thermal stability, and structural integrity on the performance of zeolites, as well as their interactions with electrical and plasma environments, are discussed in detail. The synthesis of structured zeolites is analyzed by comparing the advantages and limitations of bottom-up methods, including hard templating, soft templating, and non-templating approaches, to top-down methods, such as dealumination, desilication, and recrystallization. The review addresses the challenges associated with these synthesis techniques, such as pore-induced diffusion limitations, morphological constraints, and maintaining crystal integrity, highlighting the need for innovative solutions and optimization strategies. Advanced characterization techniques are emphasized as essential for understanding the catalytic mechanisms and dynamic behaviors of zeolites, thereby facilitating further research into their efficient and effective use. The study concludes by underscoring the importance of continued research to refine synthesis and characterization methods, which is crucial for optimizing catalytic activity in CO2 hydrogenation. This effort is important for achieving selective catalysis and is paramount to the global initiative to reduce carbon emissions and address climate change. Full article
(This article belongs to the Special Issue Applications of Heterogeneous Catalysts in Green Chemistry)
Show Figures

Graphical abstract

8 pages, 957 KiB  
Article
An Effective Method for the Evaluation of the Enantiomeric Purity of 1,2-Diacyl-sn-glycero-3-phosphocholine-Based Lipids by NMR Analysis
by Antonia Di Mola, Lorenzo de Ferra, Mauro Anibaldi, Guglielmo Monaco and Antonio Massa
Symmetry 2024, 16(5), 624; https://doi.org/10.3390/sym16050624 (registering DOI) - 17 May 2024
Abstract
In this article, we report a very efficient method for the determination of the enantiopurity of 1,2-diacyl-sn-glycero-3-phosphocholine by 1H NMR analysis using a readily available chiral derivatizing boronic acid (CDA), (R)-(2-(((1-phenylethyl)amino)methyl)phenyl)boronic acid. After the removal of the acyl [...] Read more.
In this article, we report a very efficient method for the determination of the enantiopurity of 1,2-diacyl-sn-glycero-3-phosphocholine by 1H NMR analysis using a readily available chiral derivatizing boronic acid (CDA), (R)-(2-(((1-phenylethyl)amino)methyl)phenyl)boronic acid. After the removal of the acyl groups of 1,2-diacyl-sn-glycero-3-phosphocholine via methanolysis and washing fatty acid byproducts with CHCl3, the obtained sn-glycero-3-phosphocholine (GPC) with the free diol moiety is derivatized by the chiral boronic acid and analyzed by 1H NMR analysis. The choline methyl resonance of each diastereomer is observed at distinctive chemical shifts in the 1H NMR spectrum. Integration of the respective resonances allows direct determination of the enantiomeric purity. The procedure was tested successfully using 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) with different enantiomeric purities and with commercially available 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC). Full article
(This article belongs to the Special Issue Symmetry and Asymmetry in Medicinal Chemistry)
Show Figures

Figure 1

14 pages, 3158 KiB  
Article
New Thiazolidine-4-One Derivatives as SARS-CoV-2 Main Protease Inhibitors
by Antonella Messore, Paolo Malune, Elisa Patacchini, Valentina Noemi Madia, Davide Ialongo, Merve Arpacioglu, Aurora Albano, Giuseppe Ruggieri, Francesco Saccoliti, Luigi Scipione, Enzo Tramontano, Serena Canton, Angela Corona, Sante Scognamiglio, Annalaura Paulis, Mustapha Suleiman, Helmi Mohammed Al-Maqtari, Fatma Mohamed A. Abid, Sarkar M. A. Kawsar, Murugesan Sankaranarayanan, Roberto Di Santo, Francesca Esposito and Roberta Costiadd Show full author list remove Hide full author list
Pharmaceuticals 2024, 17(5), 650; https://doi.org/10.3390/ph17050650 (registering DOI) - 17 May 2024
Abstract
It has been more than four years since the first report of SARS-CoV-2, and humankind has experienced a pandemic with an unprecedented impact. Moreover, the new variants have made the situation even worse. Among viral enzymes, the SARS-CoV-2 main protease (Mpro) [...] Read more.
It has been more than four years since the first report of SARS-CoV-2, and humankind has experienced a pandemic with an unprecedented impact. Moreover, the new variants have made the situation even worse. Among viral enzymes, the SARS-CoV-2 main protease (Mpro) has been deemed a promising drug target vs. COVID-19. Indeed, Mpro is a pivotal enzyme for viral replication, and it is highly conserved within coronaviruses. It showed a high extent of conservation of the protease residues essential to the enzymatic activity, emphasizing its potential as a drug target to develop wide-spectrum antiviral agents effective not only vs. SARS-CoV-2 variants but also against other coronaviruses. Even though the FDA-approved drug nirmatrelvir, a Mpro inhibitor, has boosted the antiviral therapy for the treatment of COVID-19, the drug shows several drawbacks that hinder its clinical application. Herein, we report the synthesis of new thiazolidine-4-one derivatives endowed with inhibitory potencies in the micromolar range against SARS-CoV-2 Mpro. In silico studies shed light on the key structural requirements responsible for binding to highly conserved enzymatic residues, showing that the thiazolidinone core acts as a mimetic of the Gln amino acid of the natural substrate and the central role of the nitro-substituted aromatic portion in establishing π-π stacking interactions with the catalytic His-41 residue. Full article
(This article belongs to the Section Medicinal Chemistry)
Show Figures

Graphical abstract

16 pages, 2532 KiB  
Article
Stocking Density and Diet of Two Oyster (Crassostrea gasar and Crassostrea gigas) Seeds in Fluidized Bed Bottle Nursery System
by Simone Sühnel, Francisco José Lagreze-Squella, Gabriel Nandi Corrêa, Jaqueline Araújo, Glauber de Souza, João Paulo Ramos Ferreira, Francisco Carlos da Silva, Carlos Henrique Araújo de Miranda Gomes and Claudio Manoel Rodrigues de Melo
Fishes 2024, 9(5), 183; https://doi.org/10.3390/fishes9050183 (registering DOI) - 17 May 2024
Abstract
Crassostrea is the most farmed oyster genus worldwide and has significant economic and social impacts with environmental benefits. Hatchery oyster seed production is a highly costly phase, and a fluidized nursery system can help reduce this cost and reduce seed production time. The [...] Read more.
Crassostrea is the most farmed oyster genus worldwide and has significant economic and social impacts with environmental benefits. Hatchery oyster seed production is a highly costly phase, and a fluidized nursery system can help reduce this cost and reduce seed production time. The present study evaluated the survival and growth of two oyster species (Crassostrea gasar and Crassostrea gigas) in a fluidized bed bottle nursery system. With C. gasar, two experiments were performed; one tested three stocking densities and the other three bialgae diets. With C. gigas, one experiment with a bialgae and monoalgae in an initial bottle occupation of 8.8% produced more seeds per bottle, but an initial bottle occupation of 2.2% produced bigger seeds. Also, the experiment with C. gasar and with C. gigas tested diets did not affect seed survival, but the diets with bialgae I. galbana and N. oculate promoted more seed growth. The fluidized bed bottle nursery system developed for this study was adequate for the seeds of the oysters C. gasar and C. gigas in the nursery phase. Full article
(This article belongs to the Special Issue Integrated Aquaculture and Monoculture of Low-Trophic Species)
Show Figures

Figure 1

18 pages, 10118 KiB  
Article
Tissue Regeneration and Remodeling in Rat Models after Application of Hypericum perforatum L. Extract-Loaded Bigels
by Yoana Sotirova, Yoana Kiselova-Kaneva, Deyana Vankova, Oskan Tasinov, Diana Ivanova, Hristo Popov, Minka Hristova, Krastena Nikolova and Velichka Andonova
Gels 2024, 10(5), 341; https://doi.org/10.3390/gels10050341 (registering DOI) - 17 May 2024
Abstract
The wound-healing effect of St. John’s Wort (SJW) is mainly attributed to hyperforin (HP), but its low stability restricts its topical administration. This study investigates how “free” HP-rich SJW extract (incorporated into a bigel; B/SJW) and extract “protected” by nanostructured lipid carriers (also [...] Read more.
The wound-healing effect of St. John’s Wort (SJW) is mainly attributed to hyperforin (HP), but its low stability restricts its topical administration. This study investigates how “free” HP-rich SJW extract (incorporated into a bigel; B/SJW) and extract “protected” by nanostructured lipid carriers (also included in a biphasic semisolid; B/NLC-SJW) affect tissue regeneration in a rat skin excision wound model. Wound diameter, histological changes, and tissue gene expression levels of fibronectin (Fn), matrix metalloproteinase 8 (MMP8), and tumor necrosis factor-alpha (TNF-α) were employed to quantify the healing progress. A significant wound size reduction was achieved after applying both extract-containing semisolids, but after a 21-day application period, the smallest wound size was observed in the B/NLC-SJW-treated animals. However, the inflammatory response was affected more favorably by the bigel containing the “free” SJW extract, as evidenced by histological studies. Moreover, after the application of B/SJW, the expression of Fn, MMP8, and TNF-α was significantly higher than in the positive control. In conclusion, both bigel formulations exhibited beneficial effects on wound healing in rat skin, but B/SJW affected skin restoration processes in a comprehensive and more efficient way. Full article
Show Figures

Figure 1

14 pages, 1783 KiB  
Article
Pre-Infection Nutritional Status, Oxidative Stress, and One-Year-Long COVID Persistence in Patients Undergoing Hemodialysis: A Prospective Cohort Study
by Natalia Stepanova, Lesya Korol, Tetyana Ostapenko, Valeriia Marchenko, Olga Belousova, Lyudmyla Snisar, Iryna Shifris and Mykola Kolesnyk
Clin. Pract. 2024, 14(3), 892-905; https://doi.org/10.3390/clinpract14030070 (registering DOI) - 17 May 2024
Abstract
Background: Nutritional status’s role in long COVID is evident in the general population, yet unexplored in patients undergoing hemodialysis (HD), posing a research gap. We hypothesized that pre-infection undernutrition in HD patients might impact long COVID persistence by accelerating oxidative stress. The present [...] Read more.
Background: Nutritional status’s role in long COVID is evident in the general population, yet unexplored in patients undergoing hemodialysis (HD), posing a research gap. We hypothesized that pre-infection undernutrition in HD patients might impact long COVID persistence by accelerating oxidative stress. The present study aimed to investigate the association between pre-infection nutritional status, oxidative stress, and one-year-long COVID persistence in HD patients. Methods: This prospective observational cohort study enrolled 115 HD patients with confirmed COVID-19. Nutritional status was assessed using the Controlling Nutritional Status (CONUT) score twice: before infection and three months post-infection. Oxidative markers included malondialdehyde (MDAs), ceruloplasmin, transferrin, and sulfhydryl groups. The endpoint was one-year-long COVID persistence. Results: Moderate pre-infection CONUT scores were associated with heightened severe undernutrition risk (p < 0.0001), elevated MDAs (p < 0.0001), and reduced ceruloplasmin levels (p = 0.0009) at three months post-COVID-19 compared to light CONUT scores. Pre-infection CONUT score independently predicted post-COVID oxidative damage [OR 2.3 (95% CI 1.2; 4.6), p < 0.0001] and one-year-long COVID persistence [HR 4.6 (95% CI 1.4; 9.9), p < 0.0001], even after adjusting for potential confounders. Conclusion: Moderate pre-infection undernutrition heightens post-COVID oxidative stress and increases the risk of one-year-long COVID persistence in HD patients. Full article
Show Figures

Figure 1

16 pages, 2892 KiB  
Article
Influence of Magnetic Field Strength on Intravoxel Incoherent Motion Parameters in Diffusion MRI of the Calf
by Tamara Alice Bäuchle, Christoph Martin Stuprich, Martin Loh, Armin Michael Nagel, Michael Uder and Frederik Bernd Laun
Tomography 2024, 10(5), 773-788; https://doi.org/10.3390/tomography10050059 (registering DOI) - 17 May 2024
Abstract
Background: The purpose of this study was to investigate the dependence of Intravoxel Incoherent Motion (IVIM) parameters measured in the human calf on B0. Methods: Diffusion-weighted image data of eight healthy volunteers were acquired using five b-values (0–600 s/mm2 [...] Read more.
Background: The purpose of this study was to investigate the dependence of Intravoxel Incoherent Motion (IVIM) parameters measured in the human calf on B0. Methods: Diffusion-weighted image data of eight healthy volunteers were acquired using five b-values (0–600 s/mm2) at rest and after muscle activation at 0.55 and 7 T. The musculus gastrocnemius mediale (GM, activated) was assessed. The perfusion fraction f and diffusion coefficient D were determined using segmented fits. The dependence on field strength was assessed using Student’s t-test for paired samples and the Wilcoxon signed-rank test. A biophysical model built on the three non-exchanging compartments of muscle, venous blood, and arterial blood was used to interpret the data using literature relaxation times. Results: The measured perfusion fraction of the GM was significantly lower at 7 T, both for the baseline measurement and after muscle activation. For 0.55 and 7 T, the mean f values were 7.59% and 3.63% at rest, and 14.03% and 6.92% after activation, respectively. The biophysical model estimations for the mean proton-density-weighted perfusion fraction were 3.37% and 6.50% for the non-activated and activated states, respectively. Conclusions: B0 may have a significant effect on the measured IVIM parameters. The blood relaxation times suggest that 7 T IVIM may be arterial-weighted whereas 0.55 T IVIM may exhibit an approximately equal weighting of arterial and venous blood. Full article
Show Figures

Figure 1

11 pages, 2629 KiB  
Article
In Vitro Screening of Endophytic Micromonospora Strains Associated with White Clover for Antimicrobial Activity against Phytopathogenic Fungi and Promotion of Plant Growth
by Wojciech Sokołowski, Sylwia Wdowiak-Wróbel, Monika Marek-Kozaczuk and Michał Kalita
Agronomy 2024, 14(5), 1062; https://doi.org/10.3390/agronomy14051062 (registering DOI) - 17 May 2024
Abstract
Bacteria belonging to the genus Micromonospora are recognized as microorganisms with the potential to be used in biotechnology processes, given their beneficial influence on plant growth and the biocontrol of phytopathogens. In this study, nineteen Micromonospora isolates originating from the root nodules of [...] Read more.
Bacteria belonging to the genus Micromonospora are recognized as microorganisms with the potential to be used in biotechnology processes, given their beneficial influence on plant growth and the biocontrol of phytopathogens. In this study, nineteen Micromonospora isolates originating from the root nodules of white clover plants were taxonomically assigned based on the phylogenetic analysis of the 16S rRNA gene and four housekeeping genes. The antifungal properties of the bacteria against phytopathogenic Botrytis cinerea, Fusarium oxysporum, Fusarium equiseti, Sclerotinia sclerotiorum, and Verticillium albo-atrum were tested with the agar plug test and the dual culture test. The ability to produce various metallophores was determined with the agar plug diffusion test on modified chrome azurol S (CAS) agar medium. International Streptomyces Project-2 medium (ISP2) broth amended with 0.2% L-tryptophan was used to indicate the bacterial ability to produce auxins. The strains belonging to M. tulbaghiae, M. inaquosa, and M. violae showed in vitro potential as antimicrobial agents against the tested fungi. M. inaquosa strain 152, M. violae strain 126, M. violae strain 66, and M. violae strain 45 were recognized as the most efficient metallophore producers. M. alfalfae strain 55 and M. lupini strain 5052 were identified as the most promising auxin compound producers and, therefore, show potential as plant-growth-promoting bacteria. Full article
(This article belongs to the Special Issue Research Progress on Pathogenicity of Fungi in Crops—2nd Edition)
Show Figures

Figure 1

23 pages, 1959 KiB  
Article
Assessment of Phthalate Esters and Physiological Biomarkers in Bottlenose Dolphins (Tursiops truncatus) and Killer Whales (Orcinus orca)
by Leila S. Lemos, Amanda C. Di Perna, Karen J. Steinman, Todd R. Robeck and Natalia S. Quinete
Animals 2024, 14(10), 1488; https://doi.org/10.3390/ani14101488 (registering DOI) - 17 May 2024
Abstract
There is growing concern about the potential adverse health effects of phthalates (PAEs) on human health and the environment due to their extensive use as plasticizers and additives in commercial and consumer products. In this study, we assessed PAE concentrations in serum samples [...] Read more.
There is growing concern about the potential adverse health effects of phthalates (PAEs) on human health and the environment due to their extensive use as plasticizers and additives in commercial and consumer products. In this study, we assessed PAE concentrations in serum samples from aquarium-based delphinids (Tursiops truncatus, n = 36; Orcinus orca, n = 42) from California, Florida, and Texas, USA. To better understand the physiological effects of phthalates on delphinids, we also explored potential correlations between phthalates and the biomarkers aldosterone, cortisol, corticosterone, hydrogen peroxide, and malondialdehyde while accounting for sex, age, and reproductive stage. All PAEs were detected in at least one of the individuals. ΣPAE ranges were 5.995–2743 ng·mL−1 in bottlenose dolphins and 5.372–88,675 ng·mL−1 in killer whales. Both species displayed higher mean concentrations of DEP and DEHP. PAEs were detected in newborn delphinids, indicating transference via placenta and/or lactation. Linear mixed model results indicated significant correlations between aldosterone, month, location, status, and ΣPAEs in killer whales, suggesting that aldosterone concentrations are likely affected by the cumulative effects of these variables. This study expands on the knowledge of delphinid physiological responses to PAEs and may influence management and conservation decisions on contamination discharge regulations near these species. Full article
(This article belongs to the Special Issue Threats to Cetacean Health)
Show Figures

Figure 1

16 pages, 4060 KiB  
Article
A Microdevice in a Submicron CMOS for Closed-Loop Deep-Brain Stimulation (CLDBS)
by Tiago Matheus Nordi, Rodrigo Gounella, Marcio L. M. Amorim, Maximillam Luppe, João Navarro Soares Junior, Joao L. Afonso, Vitor Monteiro, Jose A. Afonso, Erich Talamoni Fonoff, Eduardo Colombari and João Paulo Carmo
J. Low Power Electron. Appl. 2024, 14(2), 28; https://doi.org/10.3390/jlpea14020028 (registering DOI) - 17 May 2024
Abstract
Deep-brain stimulation (DBS) is a highly effective and safe medical treatment that improves the lives of patients with a wide range of neurological and psychiatric diseases. It has been established as a first-line tool in the treatment of these conditions for the past [...] Read more.
Deep-brain stimulation (DBS) is a highly effective and safe medical treatment that improves the lives of patients with a wide range of neurological and psychiatric diseases. It has been established as a first-line tool in the treatment of these conditions for the past two decades. Closed-loop deep-brain stimulation (CLDBS) advances this tool further by automatically adjusting the stimulation parameters in real time based on the brain’s response. In this context, this paper presents a low-noise amplifier (LNA) and a neurostimulator circuit fabricated using the low-power/low-voltage 65 nm CMOS process from TSMC. The circuits are specifically designed for implantable applications. To achieve the best tradeoff between input-referred noise and power consumption, metaheuristic algorithms were employed to determine and optimize the dimensions of the LNA devices during the design phase. Measurement results showed that the LNA had a gain of 41.2 dB; a 3 dB bandwidth spanning over three decades, from 1.5 Hz to 11.5 kHz; a power consumption of 5.9 µW; and an input-referred noise of 3.45 µVRMS, from 200 Hz to 11.5 kHz. The neurostimulator circuit is a programmable Howland current pump. Measurements have shown its capability to generate currents with arbitrary shapes and ranging from −325 µA to +318 µA. Simulations indicated a quiescent power consumption of 0.13 µW, with zero neurostimulation current. Both the LNA and the neurostimulator circuits are supplied with a 1.2 V voltage and occupy a microdevice area of 145 µm × 311 µm and 88 µm × 89 µm, respectively, making them suitable for implantation in applications involving closed-loop deep-brain stimulation. Full article
Show Figures

Figure 1

12 pages, 234 KiB  
Article
Centering Black Women’s Voices: Illuminating Systemic Racism in Maternal Healthcare Experiences
by Carla Brailey and Brittany C. Slatton
Societies 2024, 14(5), 70; https://doi.org/10.3390/soc14050070 (registering DOI) - 17 May 2024
Abstract
The racial disparity in Black maternal healthcare outcomes in the U.S. reflects the devastating impact of systemic racism embedded within the healthcare system. This study addresses Black maternal health by centering Black women’s perspectives to illuminate how systemic barriers, racism, and unequal care [...] Read more.
The racial disparity in Black maternal healthcare outcomes in the U.S. reflects the devastating impact of systemic racism embedded within the healthcare system. This study addresses Black maternal health by centering Black women’s perspectives to illuminate how systemic barriers, racism, and unequal care manifest in their maternal health experiences. We conducted six focus group discussions with 27 Black women in Harris County, Texas, an area with an alarmingly high Black maternal mortality rate. The analysis revealed three main themes: (1) institutional barriers to equitable maternal care, (2) inequitable clinical care and provider–patient interactions, and (3) navigating experiences of everyday interpersonal racism. The women’s narratives provide insights into how systemic factors such as racism and unjust policies compromise the pursuit of optimal maternal care. By centering their situated knowledge, we can understand and develop solutions that emerge directly from the lived realities of this community. Full article
11 pages, 945 KiB  
Article
FGF23 as a Potential Pathophysiological Factor in Peripheral Arterial Disease Associated with Chronic Kidney Disease
by Javier Donate-Correa, Ernesto Martín-Núñez, Carolina Hernández-Carballo, Ainhoa González-Luis, Carmen Mora-Fernández, Alberto Martín-Olivera, Sergio Rodríguez-Ramos, Purificación Cerro-López, Ángel López-Castillo, Alejandro Delgado-Molinos, Victoria Castro López-Tarruella and Juan F. Navarro-González
Int. J. Mol. Sci. 2024, 25(10), 5457; https://doi.org/10.3390/ijms25105457 (registering DOI) - 17 May 2024
Abstract
Fibroblast growth factor 23 (FGF23) levels are often elevated in chronic kidney disease (CKD). FGF23 and inflammation are common characteristics in CKD, and both are associated with worse disease progression and the occurrence of complications. The existence of an interaction between FGF23 and [...] Read more.
Fibroblast growth factor 23 (FGF23) levels are often elevated in chronic kidney disease (CKD). FGF23 and inflammation are common characteristics in CKD, and both are associated with worse disease progression and the occurrence of complications. The existence of an interaction between FGF23 and inflammation has been suggested, each of which influences the expression and activity of the other, leading to a vicious feedback loop with adverse outcomes, including cardiovascular disease and mortality. In this work, we determined circulating FGF23 levels in a group of patients with CKD stages 3 and 4 subjected to elective femoral endarterectomy due to established peripheral artery disease (PAD), a condition resulting from an athero-inflammatory process, and we studied its associations with different inflammatory markers and mediators. We evaluated its association with serum tumor necrosis factor (TNF)α, interleukin (IL) 6, and IL10, as well as with the gene expression levels of these parameters and A disintegrin and metalloproteinase domain-containing protein (ADAM) 17 in femoral vascular tissue and peripheral blood circulating cells (PBCCs). We also analyzed its association with serum concentrations of C-reactive protein (CRP), the systemic immune inflammation index (SII), and the neutrophil-to-lymphocyte ratio (NLR). Finally, we determined the vascular immunoreactivity of protein TNFα in a subgroup of patients. FGF23 concentrations were independently associated with circulating and PBCC mRNA levels of TNFα. Worst kidney function and diabetes were also found to be contributing to FGF23 levels. Patients with higher levels of FGF23 also had greater vascular immunoreactivity for TNFα. Full article
(This article belongs to the Special Issue Cellular and Molecular Research of Kidney Diseases 2.0)
Show Figures

Figure 1

16 pages, 2999 KiB  
Article
X-ray Fluorescence Core Scanning for High-Resolution Geochemical Characterisation of Soils
by Shayan Kabiri, Nick M. Holden, Rory P. Flood, Jonathan N. Turner and Sharon M. O’Rourke
Soil Syst. 2024, 8(2), 56; https://doi.org/10.3390/soilsystems8020056 (registering DOI) - 17 May 2024
Abstract
X-ray fluorescence (XRF) core scanners are commonly used for fine-scale geochemical analysis in sediment studies, but data are semi-quantitative and require calibration to convert geochemical element counts to concentrations. Application of XRF core scanning in soil science remains largely untapped. This study employed [...] Read more.
X-ray fluorescence (XRF) core scanners are commonly used for fine-scale geochemical analysis in sediment studies, but data are semi-quantitative and require calibration to convert geochemical element counts to concentrations. Application of XRF core scanning in soil science remains largely untapped. This study employed an ITRAX core scanner to scan grassland soil cores and developed a novel calibration method based on a chemometric approach to characterise soil geochemistry. As soil samples are collected based on depth sampling, this study investigated whether higher resolution element concentrations could be inferred from lower resolution reference samples and if regression models from multiple cores could apply to a new core at the same resolution. Reference concentrations were obtained for all cores at 10 cm intervals, with validation conducted at 1 cm for a single core. Two calibration curve types were proposed: one based on the single core’s 10 cm data to validate references at 1 cm intervals; and another using all cores, with each core serving as a test item after exclusion from the training set. Various preprocessing measures and feature selection techniques were tested. Results showed successful calibration for elements Ca, P, Zn, Sr, and S, with high R2 values of 0.94, 0.93, 0.93, 0.92 and 0.91, respectively. The study presents a novel method for calibrating XRF core scanning element counts, demonstrating its potential for high-resolution soil analysis. Full article
Show Figures

Graphical abstract

12 pages, 1471 KiB  
Article
CRISPR/Cas9-Mediated Knockout of the Lycopene ε-Cyclase for Efficient Astaxanthin Production in the Green Microalga Chlamydomonas reinhardtii
by Jacob Sebastian Kneip, Niklas Kniepkamp, Junhwan Jang, Maria Grazia Mortaro, EonSeon Jin, Olaf Kruse and Thomas Baier
Plants 2024, 13(10), 1393; https://doi.org/10.3390/plants13101393 (registering DOI) - 17 May 2024
Abstract
Carotenoids are valuable pigments naturally occurring in all photosynthetic plants and microalgae as well as in selected fungi, bacteria, and archaea. Green microalgae developed a complex carotenoid profile suitable for efficient light harvesting and light protection and harbor great capacity for carotenoid production [...] Read more.
Carotenoids are valuable pigments naturally occurring in all photosynthetic plants and microalgae as well as in selected fungi, bacteria, and archaea. Green microalgae developed a complex carotenoid profile suitable for efficient light harvesting and light protection and harbor great capacity for carotenoid production through the substantial power of the endogenous 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway. Previous works established successful genome editing and induced significant changes in the cellular carotenoid content in Chlamydomonas reinhardtii. This study employs a tailored carotenoid pathway for engineered bioproduction of the valuable ketocarotenoid astaxanthin. Functional knockout of lycopene ε-cyclase (LCYE) and non-homologous end joining (NHEJ)-based integration of donor DNA at the target site inhibit the accumulation of α-carotene and consequently lutein and loroxanthin, abundant carotenoids in C. reinhardtii without changes in cellular fitness. PCR-based screening indicated that 4 of 96 regenerated candidate lines carried (partial) integrations of donor DNA and increased ß-carotene as well as derived carotenoid contents. Iterative overexpression of CrBKT, PacrtB, and CrCHYB resulted in a 2.3-fold increase in astaxanthin accumulation in mutant ΔLCYE#3 (1.8 mg/L) compared to the parental strain UVM4, which demonstrates the potential of genome editing for the design of a green cell factory for astaxanthin bioproduction. Full article
(This article belongs to the Special Issue Microalgae Photobiology, Biotechnology, and Bioproduction)
Show Figures

Figure 1

11 pages, 5292 KiB  
Article
Breast Vascularization and Its Implication in Breast Reduction and Mastopexy Surgery: Anatomical Study
by Ainhoa Salas-López, Carolina Morgado-Águila, Carlos López-de-Celis, Jacobo Rodríguez-Sanz, Sara Ortiz-Miguel and Albert Pérez-Bellmunt
J. Pers. Med. 2024, 14(5), 536; https://doi.org/10.3390/jpm14050536 (registering DOI) - 17 May 2024
Abstract
(1) Background: Breast reduction is one of the most frequently performed plastic surgeries in women worldwide. The Wise pattern breast reduction is one of the most frequent skin designs for this surgery. One key point of the surgery is to preserve a well-vascularized [...] Read more.
(1) Background: Breast reduction is one of the most frequently performed plastic surgeries in women worldwide. The Wise pattern breast reduction is one of the most frequent skin designs for this surgery. One key point of the surgery is to preserve a well-vascularized NAC by using different surgical pedicles. This study aims to test and update the anatomical knowledge of breast vascularization, the topographic and anatomical basis of the different surgical vascular pedicles, and the differences between the right and left sides. (2) Methods: A descriptive observational anatomical study was carried out on 15 breasts from 10 cryopreserved body donors. A dissection was performed by quadrants to know the affected arteries’ origin in the different patterns. (3) Results: The largest and most frequently dissected internal mammary perforator artery was in the second intercostal space. A total of 44.9% of the dissected perforators are located in the upper inner quadrant, compared to 53.5% in the lower quadrants. (4) Conclusions: The upper inner quadrant alone has the most arterial perforators. In contrast, the sum of the two lower quadrants represents the greatest vascularization of the breast, with a small difference between both. Full article
(This article belongs to the Special Issue Precision Medicine in Plastic Surgery and Reconstruction)
Show Figures

Graphical abstract

Open Access Journals

Browse by Indexing Browse by Subject Selected Journals
Back to TopTop