Close Interaction Research Articles

Bioinspired Superwettable Surfaces and Materials for Liquid Motion Control.

Directional fluid dynamics has garnered increasing attention because of its extensive applications in diverse fields including water harvesting, anti-icing, and microfluidic manipulation. Natural organisms have evolved a myriad of surfaces with specialized functions that manipulate liquids by virtue of their surface structure and chemical composition. These surfaces provide an extremely rich source of inspiration for controlled fluid transfer. The study of the fundamentals of what happens between droplets and functional surfaces and the close interactions is essential for the development of technologies and solutions in different fields. Exploring the inherent workings of droplet manipulation on natural biosurfaces can inspire the design and development of superwettable materials. This review deepens the understanding of directed fluid dynamics by summarizing interface fluid dynamics theory and mechanisms. It presents the fundamental principles of directed fluid dynamics on typical natural biological surfaces. Additionally, it elucidates the fluid dynamics behavior and applications of a diverse set of smart functional surfaces inspired by natural organisms. Simultaneously, it shares its view on superwetting interface liquid dynamics challenges and opportunities, pushing for next-generation biomimetic superwettable materials.

AuPd/TiO2 Catalysts in the CO Oxidation: Insights into the Synthesis Procedure and In-situ Spectroscopy Studies

Abstract A series of bimetallic AuPd/TiO2 catalysts (Au/Pd = 1) were prepared through either the impregnation or the deposition-precipitation in urea (DPU) approach and tested in the CO oxidation reaction. Among these, the sample synthesized through a sequential impregnation (Pd) followed by DPU (Au), with an intermediate thermal treatment in air, presented a remarkable CO conversion at sub-ambient temperatures and an enhanced catalytic stability, compared to the monometallic samples. The ex-situ characterization revealed that the synthesis procedure led to the formation of well-dispersed bimetallic AuPd nanoparticles over the TiO2 support. The in-situ characterization helped to propose that bimetallic NPs were composed of an intermetallic Au-Pd phase with both atoms available in the surface. Both in-situ FTIR and UV-vis spectroscopies helped to recognize the active sites during the reaction: Au in close interaction with the TiO2 at low temperatures, and step/edges Pd sites at high temperatures. Finally, the pivotal role of the TiO2 reducibility in the CO oxidation reaction, promoted by the bimetallic AuPd NPs, was determined through in-situ Raman spectroscopy.

Mucoadhesive Drug Delivery System

Mucoadhesive drug delivery systems engage with the mucus layer on the mucosal epithelial surface, interacting with mucin molecules and prolonging the duration of the dosage form at the absorption site. Mucoadhesive drug delivery systems are components of controlled drug delivery systems as well as novel drug delivery systems. Administering drugs through the absorptive mucosa in various readily accessible body cavities such as ocularnasal, buccal, rectal, and vaginal mucosa presents notable benefits compared to peroral administration for systemic effects. Mucoadhesive drug delivery systems extend the duration the dosage form remains at the application or absorption site. They promote close interaction between the dosage form and the underlying absorption surface, thereby enhancing the drug's therapeutic effectiveness.

P0213 Salivary Veillonella parvula from Crohn’s Disease Patients Exacerbates Intestinal Inflammation

Abstract Background The gut microbiota plays a significant role in the development of inflammatory bowel disease (IBD). There is a close interaction between the oral and gut microbiota. However, the role of the "oral-gut" microbial axis in the development of IBD is not yet clear. Methods 1. Analyzed oral-gut microbiota patterns in 97 IBD patients using 16S rDNA sequencing and bioinformatics methods. 2. A mouse colitis model with DSS was used. It was gavaged with oral microbiota from CD patients to assess the impacts on colitis and gut microbiota. 3. Isolated specific differential bacteria, Veillonella, from CD patient saliva and evaluated their effects on DSS-induced colitis in mice. Results 1. IBD patients had a reduced core gut microbiota, lower diversity (P < 0.05), and increased abundance of potential pathogens such as Escherichia-Shigella. 2. CD patients showed more correlations between saliva and fecal microbiota, with the most significant correlation between Veillonella in saliva and Escherichia-Shigella in fecal (P=0.00018) . 3. The mice which were gavaged with saliva from CD patients showed significant weight loss (P < 0.0001), reduced colon length (P=0.03), increased histopathological scores (P=0.01), decreased expression of colonic mucosal barrier proteins ZO-1 and E-cadherin, and exacerbated gut microbiota dysbiosis . 4. The mice which were gavaged with Veillonella parvula from CD patients showed significant weight loss (P < 0.0001), reduced colon length (P=0.02), increased histopathological scores (P=0.02), decreased expression of colonic mucosal barrier proteins ZO-1 and E-cadherin, and exacerbated gut microbiota dysbiosis. Conclusion The interplay between the oral and gut microbiota potentially influences the progression of IBD, with oral bacteria such as Veillonella possibly intensifying intestinal inflammation in IBD patients by disrupting the gut microbiota balance. Targeted modulation of the gut microbiota and interference with oral-gut microbial interactions may offer a promising therapeutic strategy for managing IBD.

Insights into Contribution of Active Ceria Supports to Pt-Based Catalysts: Doping Effect (Zr; Pr; Tb) on Catalytic Properties for Glycerol Selective Oxidation

How important is the support during the rational design of a catalyst? Herein, doped ceria (Zr; Pr and Tb) was used as an active support to prepare Pt catalysts (0.5 wt%) for glycerol selective oxidation. A thorough characterization of achieved catalytic systems showed that the nature of doping elements led to different physicochemical properties. The presence of surface Pr3+ and Tb3+ not only increased oxygen vacancies but also electron mobility, modifying the oxidation state of platinum particles. The redox properties of the catalyst were also affected, achieving a close interaction between the support and metal particles even in the form of Pt-O-Pr(Tb) solid solutions. Furthermore, the combination of medium-sized metal particle dispersion, strong metal–support interaction and a synergy between the amount of oxygen vacancies and Pt0, observed in the Pt/CeTb catalyst, led to a high turnover frequency (TOF) and increased selectivity to glyceric acid. Thus, the present study reveals how a simple structural modification of active supports, such as cerium oxide, by means of doping elements is capable of improving the catalytic performance during glycerol selective oxidation, avoiding the cumbersome methods of synthesis and activation treatments.

Early precursor-derived pituitary gland tissue-resident macrophages play a pivotal role in modulating hormonal balance.

The pituitary gland is the central endocrine regulatory organ producing and releasing hormones that coordinate major body functions. The physical location of the pituitary gland at the base of the brain, though outside the protective blood-brain barrier, leads to an unexplored special immune environment. Using single-cell transcriptomics, fate mapping, and imaging, we characterize pituitary-resident macrophages (pitMØs), revealing their heterogeneity and spatial specialization. Microglia-like macrophages (ml-MACs) are enriched in the posterior pituitary, while other pitMØs in the anterior pituitary exhibit close interactions with hormone-secreting cells. Importantly, all pitMØs originate from early yolk sac progenitors and maintain themselves through self-renewal, independent of bone marrow-derived monocytes. Macrophage depletion experiments unveil the role of macrophages in regulating intrapituitary hormonal balance through extracellular ATP-mediated intercellular signaling. Altogether, these findings provide information on pituitary gland macrophages and advance our understanding of immune-endocrine system crosstalk.

Transformation of Traditional Oriental Medicine in the Modern World

The article examines one of the most important modern issues concerning the development of traditional medicines: their transformation into TMS — traditional medical systems. It is known that in some Asian countries (China, India, Vietnam, etc.) such TMS legitimately exist since the middle or end of the XX century; they are institutionalized and structured similarly to the conventional/biomedical healthcare system. TMS operates there in parallel with and in close interaction with the main medical system, with biomedicine as the primary educational basis for specialist training. Healthcare in these countries includes in its unified system a parallel with a second ministry or department, a complex structure of university training of specialists, specialized hospitals and clinics of various kinds — either separate or organized on the basis of complementarity, different pharmaceutical bases. At the same time, TMS, primarily from India and China, have long since spread to many other countries of the world and, as complementary or alternative forms of medicine, strive to form global forms (for example, the concept of “global Ayurveda” is already being used). The article first of all considers the specifics of the terminological apparatus associated with non-conventional medicine. Further the author analyzes the current situation of TM and TMS as it has developed to date in foreign countries, and compares it with what has been happening in the last three decades in the Russian Federation, primarily in the Republic of Buryatia and the Zabaykalsky Krai. Traditional medicine was initially introduced there with the practice of Buddhist lamas and with written sources from Tibet through Mongolia; later the Buryats on the basis of translated sources developed a relatively independent branch of Buryat-Tibetan medicine, which back in the XIX century spread first to St. Petersburg, and then to other cities and regions of the Russian Empire. Nowadays, in the main centers of traditional medicine in Buryatia and the Zabaykalsky Krai, the institutions of a medical system have been formed, making it possible to create a full-fledged TMS — a parallel, but closely intertwined with biomedicine branch of healthcare, which can easily become an alternative branch of healthcare in the Republic of Buryatia, where the traditional Buryat-Tibetan medicine has been institutionalized within the healthcare system since the 1980s. Currently, the Center for Oriental Medicine and its units are receiving a significant number of combatants for rehabilitation and are actively working in the field of restorative medicine.

Assessment of Antimicrobial Use for Companion Animals in South Korea: Developing Defined Daily Doses and Investigating Veterinarians' Perception of AMR.

There are global concerns regarding the transmission of antimicrobial-resistant pathogens from animals to humans. Especially, companion animals are increasingly recognized as a potential source due to their close interactions with people, despite a limited number of reported cases. Although, social demands regarding comprehensive surveillance for antimicrobial resistance (AMR) among companion animals are highlighted, there is a lack of a relevant system in South Korea. In this regard, we conducted preliminary investigation on antimicrobial use (AMU) among small animal clinics, along with veterinary practitioner's knowledge and attitude regarding this issue in South Korea. We collected data on 684,153 antimicrobial prescription visits for canine and feline patients from 2019 to 2022 at 100 veterinary facilities in South Korea, using electronic medical records. To evaluate antimicrobial use (AMU) and facilitate comparisons across institutions and time periods, we developed the Defined Daily Dose for Animals (DDDA) and the Defined Animal Daily Dosages per 1000 Animal-Days (DAPD). In addition, we conducted an online survey of 362 veterinary practitioners, which included questions on their perceptions, attitudes, and practices regarding antimicrobial prescriptions. Simple frequency analyses were performed to examine temporal trends, regional differences and variations by facility size in AMU, and to summarize survey responses. Descriptive analysis using data from 100 veterinary clinics revealed a rising trend in AMU between 2019 and 2022, with higher usage observed in larger clinics and non-capital regions. DDDA values for dogs were generally higher than for cats. Survey results highlighted that, while veterinarians exhibited high awareness of AMR, prescribing practices were significantly influenced by clinical judgments and owner demands, often deviating from established guidelines. The adoption of an electronic veterinary prescription management system (e-Vet) was proposed to enhance antimicrobial stewardship. However, concerns regarding the system's efficiency and administrative burden were prominent. To our best knowledge, this study provided DDDA for companion animals for the first time in South Korea. Although the indicator should be improved with more comprehensive data and expert opinion, our study showed that it enables reasonable situation analysis regarding AMU in companion animals. The identified factors that affect veterinarians' prescription practices can also be used to design an effective strategy for promoting appropriate antimicrobial usage.

Prevalence and Risk Factors of Waterborne and Foodborne Protozoan Pathogens in Kenya: A One Health Perspective.

Intestinal infections affect approximately 450 million people globally, predominantly impacting children and immunocompromised individuals in low- and middle-income countries (LMICs) due to inadequate water, sanitation, and hygiene (WASH) conditions, poverty, malnutrition, and low literacy. In Kenya, the prevalence of intestinal infections is elevated by warm tropical climates and socioeconomic factors. This scoping review evaluates the national prevalence, risk factors, and contamination sources of intestinal protozoa in Kenya, using a One Health approach to synthesize existing data from various human, animal, and environmental studies. A comprehensive literature search identified 292 studies, of which 67 met the inclusion criteria, covering the period from 1966 to 2024. The review found that most studies utilized stool microscopy, a method with limited sensitivity, and largely focused on vulnerable human populations, with minimal investigation into environmental reservoirs. Key protozoa identified included Entamoeba histolytica, Cryptosporidium, and Giardia, with transmission driven by poor WASH conditions, environmental factors, and close human-animal interactions. The findings highlight significant gaps in environmental surveillance and suggest the need for a robust, integrated One Health approach to better understand and control protozoan infections in Kenya.

Intratumoral Collagen Deposition Supports Angiogenesis Suggesting Anti-angiogenic Therapy in Armored and Cold Tumors.

A previous study classifies solid tumors based on collagen deposition and immune infiltration abundance, identifying a refractory subtype termed armored & cold tumors, characterized by elevated collagen deposition and diminished immune infiltration. Beyond its impact on immune infiltration, collagen deposition also influences tumor angiogenesis. This study systematically analyzes the association between immuno-collagenic subtypes and angiogenesis across diverse cancer types. As a result, armored & cold tumors exhibit the highest angiogenic activity in lung adenocarcinoma (LUAD). Single-cell and spatial transcriptomics reveal close interactions and spatial co-localization of fibroblasts and endothelial cells. In vitro experiments demonstrate that collagen stimulates tumor cells to express vascular endothelial growth factor A (VEGFA) and directly enhances vessel formation and endothelial cell proliferation through sex determining region Y box 18 (SOX18) upregulation. Collagen inhibition via multiple approaches effectively suppresses tumor angiogenesis in vivo. In addition, armored & cold tumors display superior responsiveness to anti-angiogenic therapy in advanced LUAD cohorts. Post-immunotherapy resistance, the transformation into armored & cold tumors emerges as a potential biomarker for selecting anti-angiogenic therapy. In summary, collagen deposition is shown to drive angiogenesis across various cancers, providing a novel and actionable framework to refine therapeutic strategies combining chemotherapy with anti-angiogenic treatments.

Crustacean Zooplankton Ingestion of Potentially Toxic Microcystis: In Situ Estimation Using mcyE Gene Gut Content Detection in a Large Temperate Eutrophic Lake.

Grazing by zooplankton can regulate bloom-forming cyanobacteria but can also transfer toxin-producing cells, as well as toxic metabolites, to the food web. While laboratory investigations have provided extensive knowledge on zooplankton and toxic cyanobacteria interactions, information on zooplankton feeding on toxin-producing cyanobacteria in natural water bodies remains scarce. In this study, we quantified Microcystis-specific mcyE synthase genes from the gut contents of various cladoceran and copepod taxa to assess the in situ crustacean community and taxon-specific ingestion of potentially toxic Microcystis in Lake Peipsi, a large eutrophic lake in Estonia, Northern Europe. Microcystis cells with mcyE genes were found in all crustaceans examined. However, some species, such as the cyclopoid copepod Mesocyclops leuckarti, were more efficient in ingesting potentially toxic Microcystis than other co-occurring cladocerans (Daphnia spp., Bosmina spp., Chydorus sphaericus) and copepods (Eudiaptomus gracilis). The amount of toxigenic Microcystis cells grazed by crustacean population changed temporarily, and copepods were the predominant consumers of toxigenic Microcystis during several months of the 5-month study period. Crustacean ingestion of toxigenic Microcystis was not related to Microcystis biomass or mcyE gene copy numbers in the environment but was instead related to the abundance of major crustacean grazers. Our findings emphasize the close interaction between crustacean zooplankton and toxigenic Microcystis, indicating that some species may play a more significant role in linking toxic cells within the food web than others.

Human Brucellosis in the Rural and Urban Population of Pakistan: Seroprevalence, Risk Factors, and Clinical Manifestations.

Brucella spp. is the bacterium responsible for brucellosis, a zoonotic infection that affects humans. This disease poses significant health challenges and contributes to poverty, particularly in developing countries. This study aimed to assess the seroprevalence, risk factors, and clinical symptoms of human brucellosis within the general population of Multan and Muzaffargarh, Pakistan. A total of 307 blood samples were collected from patients visiting local hospitals in Multan and Muzaffargarh between August 2015 and January 2016. Demographic information, risk factors, and clinical outcomes were documented. Serum samples were initially screened for anti-Brucella antibodies using the Rose Bengal Plate Test, and positive cases were subsequently confirmed through RT-PCR. The chi-square test assessed the link between Brucella positivity and the identified risk factors. The study recorded an overall seroprevalence of 6.8%, with 8.9% in Multan and 4.3% in Muzaffargarh. Genus-specific Brucella detection through RT-PCR confirmed that 20 out of 21 samples were positive. Significant associations with human brucellosis were found for contact with aborted animals (p = 0.032) and consumption of raw milk (p = 0.031), while factors such as age, gender, occupation, urbanicity, and geographical region did not show a significant impact on seropositivity (p > 0.05). Non-specific clinical symptoms were commonly observed among seropositive patients. The findings highlight the significance of close human interaction with infected animals, especially concerning livestock practices and dairy product consumption. The results also emphasize the importance of focusing efforts on raising awareness in risky occupations and developing control programs by healthcare authorities.

Heterochromatic gene silencing controls CD4+ T cell susceptibility to regulatory T cell-mediated suppression in a murine allograft model

Protective immune responses require close interactions between conventional (Tconv) and regulatory T cells (Treg). The extracellular mediators and signaling events that regulate the crosstalk between these CD4+ T cell subsets have been extensively characterized. However, how Tconv translate Treg-dependent suppressive signals at the chromatin level remains largely unknown. Here we show, using a murine bone marrow allograft model in which graft rejection is coordinated by CD4+ T cells and can be inhibited by Treg, that Treg-mediated T cell suppression involves Heterochromatin Protein 1 α (HP1α)-dependent gene silencing. Unexpectedly, our screen also reveals that T cells deficient for HP1γ or the methyltransferase SUV39H1 are better repressed by Treg than their wild-type counterparts. Mechanistically, our transcriptional and epigenetic profiling identifies HP1γ as a negative regulator of a gene network functionally associated with T-cell exhaustion, including those encoding the inhibitory receptors PD-1 and LAG-3. In conclusion, we identify HP1 variants as rheostats that finely tune the balance between tolerance and immunity. While HP1α converts immunosuppressive signals into heterochromatin-dependent gene silencing mechanisms, HP1γ adjusts Tconv sensitivity to inhibitory environmental signals.

Experiences of south Asian key workers in COVID-19 lockdowns in the United Kingdom.

This study aims to explore the experiences, challenges, and support given to South Asian Key Workers (food and necessary goods, Transport (delivery and taxi drivers,) working in the United Kingdom in times of the COVID-19 lockdowns between March 2020 to March 2021. The qualitative study aims to explore the experiences, challenges, and financial support given to South Asian Key Workers working in the United Kingdom in times of the COVID-19 lockdowns. A phenomenological approach was used to explore the experiences of key workers during the COVID-19 lockdowns in the UK. Snowball sampling was used to contact participants, who were South Asian key workers working in food, necessary goods and transport during COVID-19 lockdown in United Kingdom. Semi-structured, in-depth face to face and telephonic interviews were conducted with study participants in February and March 2021. Inductive qualitative approach was used for data analysis, and data analysis was done parallel with data collection. Researcher interviewed 17 key workers. During the data analysis four theme categories emerged: 1) Precarious working conditions, 2) Coping with stress and fear, 3) Sustainability pressures, and 4) Insufficient support. Overall, the results show that the many participants had been working in close interaction with co-workers, customers and clients, poor protective measures to prevent catching infection, excessive workload, received limited support from employer, no access to furlough pay, restriction based on immigration status and limited economic support. Instead, they had to use self-devised strategies to cope with the increased workload, economic burdens and protection from infection. The precarious working conditions exhausted participants physically and economically. They were holding a lot of grievances and hurt inside due to long existing inequalities in the society, where many highly educated and skilled individuals were unable to get stable and secure employments, despite the health vulnerabilities, South Asian key workers worked through the Covid-19 lockdowns to overcome difficulties stem from precarious work. Although currently coping with increased debts, economic burdens and long COVID symptoms, comprehensive job security and entitlement to secure contracts with provisions to sick leaves and pays should be made available to address economic vulnerabilities of south Asian key workers.

Astrocyte-Derived Interleukin 11 Modulates Astrocyte-Microglia Crosstalk via Nuclear Factor-κB Signaling Pathway in Sepsis-Associated Encephalopathy.

Sepsis-associated encephalopathy (SAE) is a severe and frequent septic complication, characterized by neuronal damage as key pathological features. The astrocyte-microglia crosstalk in the central nervous system (CNS) plays important roles in various neurological diseases. However, how astrocytes interact with microglia to regulate neuronal injury in SAE is poorly defined. In this study, we aim to investigate the molecular basis of the astrocyte-microglia crosstalk underlying SAE pathogenesis and also to explore the new therapeutic strategies targeting this crosstalk in this devastating disease. We established a human astrocyte/microglia coculture system on a microfluidic device, which allows real-time and high-resolution recording of glial responses to inflammatory stimuli. Based on this microfluidic system, we can test the responses of astrocytes and microglia to lipopolysaccharide (LPS) treatment, and identify the molecular cues that mediate the astrocyte-microglia crosstalk underlying the pathological condition. In addition, the SAE mouse model was utilized to determine the state of glial cells and evaluate the therapeutic effect of drugs targeting the astrocyte-microglia crosstalk invivo. Here, we found that activated astrocytes and microglia exhibited close spatial interaction in the SAE mouse model. Upon LPS exposure for astrocytes, we detected that more microglia migrated to the central astrocyte culture compartment on the microfluidic device, accompanied by M1 polarization and increased cell motility in microglia. Cytokine array analysis revealed that less interleukin 11 (IL11) was secreted by astrocytes following LPS treatment, which further promoted reprogramming of microglia to pro-inflammatory M1 phenotype via the nuclear factor-κB (NF-κB) signaling pathway. Intriguingly, we found that IL11 addition markedly rescued LPS-induced neuronal injuries on the microfluidic system and brain injury in the SAE mouse model. This study defines an unknown crosstalk of astrocyte-microglia mediated by IL11, which contributed to the neuropathogenesis of SAE, and suggested a potential therapeutic value of IL11 in the devastating disease.

The Effect of Foster Idol Marketing Strategies on Purchase Intention

The traditional entertainment industry has become saturated, with declining fan engagement. The rise of the Internet and new media, however, has paved the way for new models, such as idol cultivation. This model, which emphasizes systematic training, gradual exposure, and close interaction with fans, has quickly gained traction. Unlike traditional methods, idol cultivation creates a deep emotional bond between idols and fans, boosting engagement and satisfaction. Under capital’s influence, this approach yields significant economic benefits. This article takes to study and analyze idol cultivation marketing model and monetization methods through investment and fundraising, providing insights into its marketing and profit mechanisms.

유아교사의 역할에 대한 포괄적 이해

The purpose of this study is to investigate comprehensive meaning of early childhood teacher’ roles. Research findings reviewing study results on early childhood teacher’ roles are as follows: Firstly, role models were suggested by children educators are different from times. Recently, teacher’ roles to carry out high quality education and reflect demands of education field are added. secondly, early childhood teachers in era of the fourth industrial revolution are fostering children’s creative and critical thinking, supporting self-directed learning of children. Thirdly, teachers should perform national curriculum in educational institution. There are differences between teachers’ roles in traditional curriculum and recently those in child-centered curriculum. Fourth, parents and young children conceive teachers’ role as a close interaction with children. Fifth, early childhood teachers are awareness of their own main roles as nurturant and instructional roles. Finally, early childhood teacher’ roles of this study are classified with what to do. They are a warm-hearted caregiver, a child-centered curriculum manager to the future, a cooperative education assistant.

Modulation of mitochondrial dynamism in Kupffer cells impacts systemic metabolism

Background: Kupffer cells (KCs) are hepatoresident macrophages that are essential for liver physiology and contribute to the development of nonalcoholic hepatic steatosis (NAFLD). The liver of patients with MAFLD shows different expressions of some key regulators of inner mitochondrial membrane fusion compared with healthy subjects, including OPA1 protein, which is a mitochondrial protein whose activity promotes mitochondrial fusion and modulation of oxidative phosphorylation. Aims: Given the close interaction that KCs have with cells in the hepatic niches, they play both a crucial immune and metabolic role, which is why their mitochondria are critical for their function. This project aims to investigate how modulation of OPA1-driven mitochondrial fusion in KCs can affect lipid metabolism and immune response at the systemic and hepatic levels. Methods: Mice selectively lacking OPA1 in the KCs were fed a Standard Diet or a High Fat Diet for 20 weeks. The immune phenotype was assessed by cytofluorimetry while the metabolic profile by in vivo indirect calorimetry and with plasma and tissue lipid profile analysis. Single cell RNA sequencing was also performed to profile the impact of OPA1 deficiency on KC function and possible paracrine effects on hepatocytes. Results: Under standard dietary conditions, mice selectively lacking OPA1 in KCs show a different metabolic substrate preference compared to wild type, with an immunophenotype characterized by a higher proportion of pro-resolution KC2 than pro-inflammatory KC1. Functionally, KCs also exhibit dissimilar phagocytic and proliferative capacity. During the high-fat diet, we observed a significant reduction in liver fibrosis. Conclusions: Taken together, these data suggest that OPA1 plays a key role in the function of Kupffer cells and that the lack of OPA1, causing metabolic reprogramming, affects their interaction with resident liver cells, influencing the development of fibrosis and the progression of MAFLD.

CONCEPTUAL DESIGN APPARATUS OF THE OPERATION IN ACCORDANCE WITH NATO STANDARDS

The article considers the conceptual apparatus used in building an operation design in accordance with NATO standards. Planning operations in today's complex and dynamic environment requires a comprehensive and systematic approach that is suggested by NATO directives. The implementation of this planning format in the directive on operational planning in the Armed Forces of Ukraine is relevant in modern conditions and requires a clear understanding of the conceptual framework for building an operation design as one of the key and most complex stages of the operational planning process.The article shows the differences in the conceptual apparatus of operation design in the NATO, US and UK operational planning doctrines and provides recommendations for their application in operational planning in the Armed Forces of Ukraine in the current operational environment. The article considers the procedure for building an operation design at the operational level and provides advice on the elements of operation design and their categories, taking into account the growing influence of the information component on decision-making and planning.The expediency of using the provisions of the NATO Comprehensive Operations Planning Directive (COPD) for operational planning in the Armed Forces of Ukraine is determined. It is based on its ability to ensure effective synergistic planning of combined military and non-military forces and capabilities in complex modern conditions at the operational level through constant and close interaction with military-strategic and tactical planning levels.

Correlations between biochemical indicators determined in the somatosensory cortex and hippocampus and morphological indicators, functional state of the central nervous system and neurological deficit in rats

Annotation. Today, the development and clinical implementation of drugs capable of preventing and/or inhibiting the apoptosis phenomenon is considered the main direction of cytoprotection in cerebral ischemia. Among the latter, the use of citicoline attracts attention. The purpose – to establish and analyze correlations between biochemical parameters determined in the somatosensory cortex and hippocampus of rats, and morphological manifestations of neuroapoptosis and parameters of CNS functioning in animals with experimental IR (ischemia-reperfusion) of a brain. The study was carried out on 75 four-month-old male Wistar rats weighing 160-190 g. In 65 animals, the experimental model of IR was performed by placing ligatures on the internal carotid arteries on both sides under propofol anesthesia. After cerebral IR modelling, 0,9% NaCl in a dose of 2 ml/kg was injected into the femoral vein of 40 rats. A group of animals (25 rats) immediately after the start of brain reperfusion was intravenously injected with citicoline (at a dose of 250 mg/kg). The control group of animals included sham-operated rats (10 animals). Assessment of neurological deficit in rats was carried out according to the stroke-index scale of C.P. McGrow, the functional state of the central nervous system - by the "open field" method, and morphometric and biochemical indicators were studied on the 7th and 14th day after IR. Statistical processing of the research results was carried out using the computer program Statistica 7.0 (StatSoft Inc. production, USA). The methods of non-parametric statistics were used (in particular, the Wilcoxon-Mann-Whitney U-test, Spearman's non-parametric correlation rank analysis). Reliable correlations are observed between the functional indicators of the central nervous system in rats (according to the results of the "open field" test) and biochemical indicators (such as the content of lactate, glucose, MDA, SDH, SOD and NO-synthase in the tissue of the somatosensory cortex and hippocampus), which indicate a change in the motor activity of rats with enzymatic and metabolic imbalance in the brain tissue of the specified areas. In addition, there are multiple linear relationships between biochemical and morphological indicators determined in the somatosensory cortex and hippocampus, which indicates a close functional interaction of the specified brain departments with each other (observed in all groups of rats). With subtotal IR of the brain in rats, there are specific direct correlations between the protein content in brain tissue and morphological indicators, as well as neurological deficit, which are recorded in the subacute period of ischemia (the 7th day) both in the somatosensory cortex and in the hippocampus. Specific inverse correlations also occur between MDA activity in the somatosensory cortex (the 14th day after ischemia) and morphological indicators in the hippocampus. The use of citicoline as a neuroprotector immediately after IR in rats did not cause the appearance of new highly specific correlational dependencies or the disappearance of existing ones.