1,161 results match your criteria: "Southern federal University[Affiliation]"

Carbon Nanodot-Microbe-Plant Nexus in Agroecosystem and Antimicrobial Applications.

Nanomaterials (Basel)

July 2024

Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Animal Science, Biotechnology and Nature Conservation, University of Debrecen, 138 Böszörményi Street, 4032 Debrecen, Hungary.

The intensive applications of nanomaterials in the agroecosystem led to the creation of several environmental problems. More efforts are needed to discover new insights in the nanomaterial-microbe-plant nexus. This relationship has several dimensions, which may include the transport of nanomaterials to different plant organs, the nanotoxicity to soil microbes and plants, and different possible regulations.

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Role of ursolic acid in preventing gastrointestinal cancer: recent trends and future perspectives.

Front Pharmacol

July 2024

Department of Translational Medicine, Clinical Research Centre, Skåne University Hospital, Lund University, Malmö, Sweden.

Gastrointestinal malignancies are one of the major worldwide health concerns. In the present review, we have assessed the plausible therapeutic implication of Ursolic Acid (UA) against gastrointestinal cancer. By modulating several signaling pathways critical in cancer development, UA could offer anti-inflammatory, anti-proliferative, and anti-metastatic properties.

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Correction to: An Alternative Photothrombotic Model of Transient Ischemic Attack.

Transl Stroke Res

August 2024

Laboratory of Molecular Neuroscience, Academy of Biology and Biotechnology, Southern Federal University, 194/1, Stachki Ave, Rostov‑On‑Don, 344090, Russia.

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The oxygen reduction reaction (ORR) catalyzed by efficient and economical catalysts is critical for sustainable energy devices. Although the newly-emerging atomically dispersed platinum catalysts are highly attractive for maximizing atomic utilization, their catalytic selectivity and durability are severely limited by the inflexible valence transformation between Pt and supports. Here, we present a structure by anchoring Pt atoms onto valence-adjustable CuO/Cu hybrid nanoparticle supports (Pt-CuO/Cu), in which the high-valence Cu (+2) in CuO combined with zero-valent Cu (0) serves as a wide-range valence electron reservoir (0‒2e) to dynamically adjust the Pt 5d valence states during the ORR.

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Cardiovascular diseases remain one of the main threats to human health, significantly affecting the quality and life expectancy. Effective and prompt recognition of these diseases is crucial. This research aims to develop an effective novel hybrid method for automatically detecting dangerous arrhythmias based on cardiac patients' short electrocardiogram (ECG) fragments.

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An Alternative Photothrombotic Model of Transient Ischemic Attack.

Transl Stroke Res

July 2024

Laboratory of Molecular Neuroscience, Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachki Ave, Rostov-On-Don, 344090, Russia.

Animal models mimicking human transient ischemic attack (TIA) and cerebral microinfarcts are essential tools for studying their pathogenetic mechanisms and finding methods of their treatment. Despite its advantages, the model of single arteriole photothrombosis requires complex experimental equipment and highly invasive surgery, which may affect the results of further studies. Hence, to achieve high translational potential, we focused on developing a TIA model based on photothrombosis of arterioles to combine good reproducibility and low invasiveness.

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bacteria are renowned for their remarkable capacity to synthesize antibiotics, namely mupirocin, gluconic acid, pyrrolnitrin, and 2,4-diacetylphloroglucinol (DAPG). While these substances are extensively employed in agricultural biotechnology to safeguard plants against harmful bacteria and fungi, their potential for human medicine and healthcare remains highly promising for common science. However, the challenge of obtaining stable producers that yield higher quantities of these antibiotics continues to be a pertinent concern in modern biotechnology.

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Article Synopsis
  • Researchers developed a new method to create two-dimensional VCT MXenes from the VAlC MAX phase, utilizing a combination of combustion synthesis and hydrothermal processing with HCl/LiF.
  • The resulting VCT MXene was characterized using various techniques, and then mixed into a poly(vinylidene fluoride) (PVDF) matrix to form nanocomposites with varying VCT content (2.5 to 20 wt%).
  • The study found that adding 20 wt% VCT MXene significantly boosted the permittivity of the nanocomposite to 425.3, and the dielectric properties were primarily influenced by the PVDF matrix, with the VCT filler enhancing interfacial polarization as temperature and
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Luteolin: A promising modulator of apoptosis and survival signaling in liver cancer.

Pathol Res Pract

August 2024

Department of Bio-Sciences and Technology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar University, Ambala 133207, India. Electronic address:

Due to the increasing incidence of cancer and the difficulties in determining the safety profile of existing therapeutic approaches, cancer research has recently become heavily involved in the search for new therapeutic approaches. The therapeutic significance of natural substances, especially flavonoids, against the onset and progression of cancer has been emphasized in traditional food-based medicine. Interestingly, the flavone luteolin possesses biological effects that have been linked to its anti-inflammatory, antioxidant, and anticancer effects.

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The increasing use of nanoparticles is driving the growth of research on their effects on living organisms. However, studies on the effects of nanoparticles on cellular respiration are still limited. The remodeling of cellular-respiration-related indices in plants induced by zinc oxide nanoparticles (nnZnO) and its bulk form (blZnO) was investigated for the first time.

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The aim of this study was to evaluate a new B-1895 probiotic as a feed additive for farmed trout. Final weight, absolute and average daily gain of fish, and average daily growth rate were higher in the group that received the probiotic than in the control group (p<0.05).

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Metal nanoparticles are widely used as heterogeneous catalysts to activate adsorbed molecules and reduce the energy barrier of the reaction. Reaction product yield depends on the interplay between elementary processes: adsorption, activation, desorption, and reaction. These processes, in turn, depend on the inlet gas composition, temperature, and pressure.

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The combustion of coal in power plants releases significant amounts of polycyclic aromatic hydrocarbons (PAHs), which are highly toxic and carcinogenic. This study assesses the ecological and human health impacts of PAHs contamination from a coal-fired power plant over 8 years. The monitoring site selection considered the distance from the power plant and the prevailing wind direction in the investigated area.

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X-ray absorption spectroscopy (XAS) has been central to the study of the Phillips polymerization catalyst (CrO/SiO). As Cr K-edge XAS signatures are sensitive to the oxidation state, geometry and types of ligands on surface (active) sites, the superposition of these effects makes their interpretation challenging. Notably, CO has been particularly used as a reductant to generate low valent Cr sites from CrO/SiO and as a structural IR probe for analysing reduced Cr surface sites.

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Cervical cancer is one of the most frequent cancers in women and is associated with human papillomavirus (HPV) in 70 % of cases. Cervical cancer occurs because of progression of low-differentiated cervical intraepithelial neoplasia through grade 2 and 3 lesions. Along with the protein-coding genes, long noncoding RNAs (lncRNAs) play an important role in the development of malignant cell transformation.

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Photopharmacology is a young and rapidly developing field of research that offers significant potential for new insights into targeted therapy. While it primarily focuses on cancer treatment, it also holds promise for other diseases. The key feature of photopharmacological agents is the presence of a photosensitive and biologically active component in the same molecule.

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Editorial for "Special Abilities of Microbes and Their Application in Agro-Biology".

Microorganisms

June 2024

Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida 201301, India.

Currently, climate change-related environmental issues associated with agriculture is alarming and poses a potential risk to global food security, causing significant global concern as a result [...

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Anthropogenic activities have caused irreversible consequences on our planet, including climate change and environmental pollution. Nevertheless, reducing greenhouse gas (GHG) emissions and capturing carbon can mitigate global warming. Biochar and hydrochar are increasingly used for soil remediation due to their stable adsorption qualities.

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Chronic Astrocytic TNFα Production in the Preoptic-Basal Forebrain Causes Aging-like Sleep-Wake Disturbances in Young Mice.

Cells

May 2024

Research Service (151A3), Veterans Affairs Greater Los Angeles Healthcare System, Sepulveda, CA 91343, USA.

Article Synopsis
  • Sleep disruption in older adults is linked to chronic neuroinflammation in the preoptic and basal forebrain area, affecting sleep regulation.
  • Researchers introduced a viral vector to increase tumor necrosis factor-alpha (TNFα) in young mice, leading to heightened neuroinflammation and changes in sleep patterns.
  • Results showed that these mice experienced impaired sleep organization, decreased functionality of key sleep neurons, and reduced physical performance, indicating a connection between neuroinflammation and sleep disturbances as seen in aging.
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Six previously unknown zwitterions with positively and negatively charged [NHN] hydrogen bonds were synthesized by acylation of 4,5-bis(dimethylamino)-1-tosylamino-8-aminonaphthalene with subsequent alkaline treatment of the resulting 8-acylamino derivatives. Using NMR and XRD measurements in conjunction with quantum chemical DFT/PBE1PBE/6-311++G(d,p) calculations, it was shown that the negatively charged [NHN] bond in such compounds commonly differs from the [NHN] bond by significantly lower linearity, higher asymmetry, and moderate to strong paramagnetic shift of the chelated NH proton signal. Among other remarkable findings, the most important are (1) unusually high polarity (μ = 21-26 D) of the obtained zwitterions, (2) sharp difference in structures of the solid 1,8-bis(tosylated) zwitterion (BTZ) grown from MeCN or DMF, and (3) registration for one of the stereoisomers of BTZ with the record short [NHN] hydrogen bridge (N···N = 2.

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Due to their unique physical and chemical properties, complex nanostructures based on carbon nanotubes and transition metal oxides are considered promising electrode materials for the fabrication of high-performance supercapacitors with a fast charge rate, high power density, and long cycle life. The crucial role in determining their efficiency is played by the properties of the interface in such nanostructures, among them, the type of chemical bonds between their components. The complementary theoretical and experimental methods, including dispersion-corrected density functional theory (DFT-D3) within GGA-PBE approximation, scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman, X-ray photoelectron, and X-ray absorption spectroscopies, were applied in the present work for the comprehensive investigation of surface morphology, structure, and electronic properties in CuOx/MWCNTs and NiO/MWCNTs.

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This article presents findings on the study of content, profile distribution, and reserves of various carbon forms (organic carbon (TOC) and inorganic carbon (IC)) in Urbic Technosols and Ekranic Technosols within the residential zone of the city, alongside zonal Calcic Chernozems in the recreational zone of Rostov-on-Don, Aksai, and Bataysk. It was revealed that the TOC content in the upper horizons of Urbic Technosols is significantly lower than in the chernozem horizons of fallow areas, registering at 2.59 ± 0.

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Pentoxifylline (PTXF) is a vasoactive agent that plays a significant role in the treatment of thin-layer endometrium cases. The PTXF, also identified as oxpentifylline, is a member of xanthine derivatives and a competitive nonselective phosphodiesterase inhibitor leading to the elevation of intracellular cAMP, inhibition of tumor necrosis factor and leukotriene synthesis, activation of protein kinase A, and reduction of inflammation and innate immunity. Moreover, it is used as an agent to relieve muscle pain in people with peripheral artery disease (vascular irregularities).

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