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Non-thermal atmospheric-pressure positive pulsating corona discharge in degradation of textile dye Reactive Blue 19 enhanced by Bi_(2)O_(3) catalyst

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Plasma Science and Technology 2024年第2期26卷 104-113页

作者： Milica PETROVIC Dragan RADIVOJEVIC Sasa RANCEV Nena VELINOV Milos KOSTIC danijela bojic Aleksandar bojic Department of Chemistry Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia Department of Physics Faculty of Sciences and MathematicsUniversity of NisNis 18000Serbia

In this work,monoclinic Bi_(2)O_(3) was applied for the first time,to the best of our knowledge,as a catalyst in the process of dye degradation by a non-thermal atmospheric-pressure positive pulsating corona *** research focused on the interaction of the plasma-generated species and the catalyst,as well as the role of the catalyst in the degradation *** decomposition of the anthraquinone reactive dye Reactive Blue 19(RB 19) was performed in a selfmade reactor ***_(2)O_(3) was prepared by electrodeposition followed by thermal treatment,and characterized by x-ray diffraction,scanning electron microscopy and energy-dispersive xray *** was observed that the catalyst promoted decomposition of plasma-generated H_(2)O_(2) into ·OH radicals,the principal dye-degrading reagent,which further attacked the dye *** catalyst improved the decolorization rate by 2.5 times,the energy yield by 93.4%and total organic carbon removal by 7.1%.Excitation of the catalyst mostly occurred through strikes by plasma-generated reactive ions and radical species from the air,accelerated by the electric field,as well as by fast electrons with an energy of up to 15 eV generated by the streamers reaching the liquid *** strikes transferred the energy to the catalyst and created the electrons and holes,which further reacted with H_(2)O_(2) and water,producing ·OH *** was indentified as the primary role of the catalyst in this *** reactions followed pseudo first-order *** of H_(2)O_(2) and the dye degradation rate increased with increase in the input *** optimal catalyst dose was 500 mg·dm^(-3).The decolorization rate was a little lower in river water compared with that in deionized water due to the side reactions of ·OH radicals with organic matter and inorganic ions dissolved in the river water.

关键词： corona RB 19 Bi_(2)O_(3) catalyst degradation

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Hepatocellular carcinoma and musculoskeletal system: A narrative literature review

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World Journal of Gastroenterology 2024年第15期30卷 2109-2117页

作者： Jelena Jadzic danijela Djonic Center of Bone Biology Faculty of MedicineUniversity of BelgradeBelgrade 11000Serbia

Musculoskeletal alterations in hepatocellular carcinoma(HCC)are less common than liver-related ***,they can significantly impact the quality of life and overall prognosis of patients with *** main obstacle in the clinical assessment of HCC-induced musculoskeletal alterations is related to effective and timely diagnosis because these complications are often asym-ptomatic and unapparent during routine clinical *** narrative literature review aimed to provide a comprehensive overview of the contem-porary literature related to the changes in the musculoskeletal system in patients with HCC,focusing on its clinical implications and underlying etiopathogenetic *** bone metastases are the most common skeletal alterations associated with HCC,which could be associated with an increased risk of low-trauma bone ***,previous studies reported that osteopenia,sarcopenia,and myosteatosis are associated with poor clinical outcomes in patients with *** though low bone mineral density and sarcopenia are consistently reported as reliable predictors of pretransplantation and post-transplantation mortality in HCC patients,these complications are frequently overlooked in the clinical management of patients with *** together,contemporary literature suggests that a multidisciplinary approach is essential for early recognition and clinical management of HCC-associated musculoskeletal alterations to improve patient *** research into the mechanisms and treatment options for musculoskeletal complications is warranted to enhance our understanding and clinical management of this aspect of HCC.

关键词： Hepatocellular carcinoma Osteopenia Osteoporosis Sarcopenia Bone metastases Bone fragility

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Blue Cap Is Effective and Safe for the Treatment of Atopic Dermatitis in Children

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Open Journal of Pediatrics 2024年第3期14卷 609-622页

作者： Mirjana Gajić-Veljić Biljana Marenović Margita Mijušković Vesna Reljić Danica Tiodorović danijela Popović Sanja Zorić-Blagojević Milica Vučinić David Marquez-Soriano Jovan Lalošević University of Belgrade Faculty of Medicine Department of Dermatology and Venereology University Clinical Center of Serbia Beograd Serbia University of Niš Faculty of Medicine Department of Dermatology and Venereology University Clinical Center of Ni&#353 Ni&#353 Serbia City Institute for Skin and Venereal Diseases Beograd Serbia Scientific Department Catalysis S.L. Madrid Spain

Background: Atopic dermatitis (AD) is the most common inflammatory skin disease in children. Treatment of AD is based on skin barrier repair and reduction of inflammation. We analyzed the efficacy and safety of activated piroctone olamine (APO)—Blue Cap—in children with AD. Materials and Methods: An open-label interventional clinical study was carried out at three clinical centers in Serbia. A total of 58 patients with AD, aged between 3 and 18 years were included and treated with Blue Cap Foam (100 ml;CATALYSIS S.L. Madrid)—Activated Piroctone Olamine—applied twice a day in the affected areas with eczema for 30 days and final assessment at 45 days from baseline. Photographic documentation, clinical evaluation, therapy effectiveness and safety questionnaires were assessed at baseline, 15, 30 and 45 days. Results: Our results demonstrated a significant reduction in signs (erythema, scaling, infiltration, excoriations, xerosis) and symptoms (pruritus) at weeks 2 and 4 of the study. At the end of the study, most patients had moderate (28.6%) to great (62.5%) disappearance of manifestations and moderate (25%) to great (71.4%) skin quality improvement. The effect and tolerability of the therapy were evaluated as very good in 66.1 % and 67.9% and good in about 14.3% and 17.9%, assessed by the investigator and patient, respectively. Three patients experienced a burning sensation at the beginning of the study, the side-effects were resolved as the patients continued applying the foam. After two weeks of cessation of the investigated foam, a significant percentage of patients experienced worsening in the final assessment done by the investigator as well as the participant. In the final assessment, a significantly high percentage (57.1%) of patients had a total reduction of manifestation, and a significant number of participants considered the applied product as treatment success, assessed by the investigator (62.5%) as well as the participants (66.4%). Conclusions: Blue Cap

关键词： Pediatric Dermatology Atopic Dermatitis Piroctone Olamine Skin Care

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Applications and safety of gold nanoparticles as therapeutic devices in clinical trials

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Journal of Pharmaceutical Analysis 2023年第9期13卷 960-967页

作者： Leeann Yao Dejan bojic Mingyao Liu Latner Thoracic Surgical Research Laboratories Toronto General Hospital Research InstituteUniversity Health NetworkTorontoONM5G 1L7Canada Institute of Medical Science Temerty Faculty of MedicineUniversity of TorontoTorontoONM5S 1A8Canada Department of Surgery Medicine and PhysiologyTemerty Faculty of MedicineUniversity of TorontoTorontoONM5S 1A8Canada

Use of gold nanoparticles(GNPs)in medicine is an emerging field of translational research with vast clinical implications and exciting therapeutic ***,the safety of using GNPs in human subjects is an important question that remains *** study reviews over 20 clinical trials focused on GNP safety and aims to summarize all the clinical studies,completed and ongoing,to identify whether GNPs are safe to use in humans as a therapeutic *** these studies,GNPs were implemented as drug delivery devices,for photothermal therapy,and utilized for their intrinsic therapeutic effects by various routes of *** studies revealed no major safety concerns with the use of GNPs;however,the number of trials and total patient number remains ***-dose,multicenter blinded trials are required to deepen our understanding of the use of GNPs in clinical settings to facilitate translation of this novel,multifaceted therapeutic *** clinical trials will require collaboration between clinicians,scientists,and biotechnology companies.

关键词： Nanomedicine Clinical studies Gold nanoparticles Safety Applications

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Five different types of lowered snow line in alpine valleys

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Journal of Mountain Science 2022年第1期19卷 73-84页

作者： danijela STRLE Matej OGRIN Department of Geography University of LjubljanaLjubljana 1000Slovenia

The snow line for the same precipitation event in alpine valleys can vary greatly from valley to valley, even when the valleys are close together. Often this is not due to a difference in air mass, but to a different interaction of topography and topographyrelated meteorological conditions. By knowing the causes of a lowered snow line, we can better understand the differences in snow cover in alpine valleys at the same elevation over short distances or the differences in snow cover between alpine valleys and areas outside the valleys. As different types of lowered snow line respond differently to climate change, we can also understand future changes in snow conditions in alpine valleys. To better understand the process, we observed the temperature conditions during winter precipitation events on the territory of Eastern Julian Alps(Slovenia) over a period of two years, focusing on the height of the zero isotherm. Depending on atmospheric conditions, especially changes in the temperature profile and precipitation intensity during precipitation events, five causes of lowered snow line have been identified. These types can occur individually, but during multi-day snowfall events they occur frequently or in combination.

关键词： Latent cooling Snowfall Topoclimate Mountain valleys Local climate Julian Alps

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Interplay of SOX transcription factors and microRNAs in the brain under physiological and pathological conditions

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Neural Regeneration Research 2022年第11期17卷 2325-2334页

作者： Milena Stevanovic danijela Stanisavljevic Ninkovic Marija Mojsin danijela Drakulic Marija Schwirtlich Laboratory for Human Molecular Genetics Institute of Molecular Genetics and Genetic EngineeringUniversity of BelgradeBelgradeSerbia University of Belgrade Faculty of BiologyBelgradeSerbia Serbian Academy of Sciences and Arts BelgradeSerbia

Precise tuning of gene expression,accomplished by regulato ry networks of transcription factors,epigenetic modifiers,and microRNAs,is crucial for the proper neural development and function of the brain *** SOX transcription factors are involved in regulating diverse cellular processes during embryonic and adult neurogenesis,such as maintaining the cell stemness,cell prolife ration,cell fate decisions,and terminal diffe rentiation into neurons and glial *** represent a class of small non-coding RNAs that play important roles in the regulation of gene *** with other gene regulatory factors,microRNAs regulate different processes during neurogenesis and orchestrate the spatial and temporal expression important for *** emerging data point to a complex regulatory network between SOX transcription factors and microRNAs that govern distinct cellular activities in the developing and adult *** SOX/mic roRNA interplay in signaling pathways that influence the homeostasis and plasticity in the brain has been revealed in various brain pathologies,including neurodegenerative disorders,traumatic brain injury,and *** strategies that target SOX/microRNA interplay have emerged in recent years as a promising tool to target neural tissue regeneration and enhance neuro restoration.N umerous studies have confirmed complex intera ctions between microRNAs and SOX-specific mRNAs regulating key features of *** in mind the crucial roles of SOX genes and microRNAs in neural development,we focus this review on SOX/microRNAs interplay in the brain during development and adulthood in physiological and pathological *** focus was made on their interplay in brain pathologies to summarize current knowledge and highlight potential future development of molecular therapies.

关键词： dysregulation of miRNA expression glioblastoma gliogenesis glioma stem cells ischemic stroke neural stem cells neural tissue regeneration neurodegenerative diseases neurodevelopment neurogenesis SOX/miRNA interplay traumatic brain injury

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Bone loss in chronic liver diseases:Could healthy liver be a requirement for good bone health?

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World Journal of Gastroenterology 2023年第5期29卷 825-833页

作者： Jelena Jadzic danijela Djonic Center of Bone Biology Faculty of MedicineUniversity of BelgradeBelgrade 11000Serbia

Given that the liver is involved in many metabolic mechanisms,it is not surprising that chronic liver disease(CLD)could have numerous *** osteoporosis and increased bone fragility are frequently overlooked complications in CLD *** studies implied that up to one-third of these individuals meet diagnostic criteria for osteopenia or *** publications indicated that CLD-induced bone fragility depends on the etiology,duration,and stage of liver ***,the increased fracture risk in CLD patients puts a severe socioeconomic burden on the health system and urgently requires more effective prevention,diagnosis,and treatment *** pathogenesis of CLD-induced bone loss is multifactorial and still insufficiently understood,especially considering the relative impact of increased bone resorption and reduced bone formation in these *** is essential to note that inconsistent findings regarding bone mineral density measurement were previously reported in these *** mineral density is widely used as the“golden standard”in the clinical assessment of bone fragility although it is not adequate to predict individual fracture ***,microscale bone alterations(bone microstructure,mechanical properties,and cellular indices)were analyzed in CLD *** studies further support the thesis that bone strength could be compromised in CLD individuals,implying that an individualized approach to fracture risk assessment and subsequent therapy is necessary for CLD ***,more well-designed studies are required to solve the bone fragility puzzle in CLD patients.

关键词： Chronic liver disease Fracture risk Hepatic osteodystrophy Osteoporosis Bone strength

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Prototype of highly efficient liquid electrode pulsating corona plasma reactor for degradation of organics in water

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Plasma Science and Technology 2019年第12期21卷 67-77页

作者： Sasa RANCEV Milica PETROVIC Dragan RADIVOJEVIC Aleksandar bojic cedomir MALUCKOV Miodrag RADOVIC University of Nis Faculty of Science and MathematicsDepartment of PhysicsVisegaradska 3318000NisSerbia University of Nis Faculty of Science and MathematicsDepartment of ChemistryVisegradska 3318000NisSerbia University of Belgrade Technical Faculty in BorDepartment for Inorganic Chemical TechnologyVojske Jugoslavije 1219210 BorSerbia

Prototype of atmospheric pressure non-thermal corona plasma reactor, developed for degradation of organics in water, operates at significantly higher frequency than other reactors for that purpose, and without sparks. Its construction provides the umbrella shaped, sustained pulsating corona discharge, with defined discharge oscillations on a given pulse frequency above the water surface. Dye degradation rate decreases with the decrease of discharge current density. Plasmaformed H2O2 is consumed in dye degradation. The energy yield of dye degradation is 2.45 g k Wh^-1 for 50 ppm solution, which is higher than in other publications for comparable experimental conditions.

关键词： corona pulsating frequency degradation

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Effect of water matrices on removal of veterinary pharmaceuticals by nanofiltration and reverse osmosis membranes

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Journal of Environmental Sciences 2011年第8期23卷 1299-1307页

作者： Davor Dolar Ana Vukovi danijela Aperger Kreimir Kouti Department of Physical Chemistry Faculty of Chemical Engineering and Technology Maruliev trg 19 10000 Zagreb Croatia Department of Analytical Chemistry Faculty of Chemical Engineering and Technology Maruliev trg 19 10000 Zagreb Croatia

This study explored the removal of five veterinary pharmaceuticals （VPs）（sulfamethoxazole （SMETOX）, trimethoprim （TMP）, ciprofloxacin （CIPRO）, dexamethasone （DEXA） and febantel （FEBA）） from different water matrices （Milli-Q water, model water, tap water and real pharmaceutical wastewater using four types of nanofiltration （NF） membranes （NF90, NF270, NF and HL） and two reverse osmosis （RO） membranes （LFC-1 and XLE）. All VPs were added to different water matrices at a concentration of 10 mg/L. Rejections of VPs and water flux were measured. The rejection increased with increase of molecular weight. The highest rejections were obtained with RO membranes （LFC-1, XLE） and tight NF （NF90） membrane. In general, the rejection of VPs was higher in model water and tap water than in Milli-Q water, but the water flux was lower. This was mainly explained by ion adsorption inside the membranes pores. Narrower pore size counteracted the effect of presence of low concentration of natural organic matter （NOM） in tap water. The NOM was assumed to enhance the adsorption of VPs onto membrane surface, increased the size exclusion and electrostatic repulsion also appeared during the transport. Investigated water matrices had influence on water flux decline due to their complexity.

关键词： veterinary pharmaceuticals water matrix RO/NF treatment rejection

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Crosstalk between dietary patterns,obesity and nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2022年第27期28卷 3314-3333页

作者： danijela Ristic-Medic Joanna Bajerska Vesna Vucic Group for Nutritional Biochemistry and Dietology Centre of Research Excellence in Nutrition and MetabolismInstitute for Medical ResearchNational Institute of Republic SerbiaBelgrade PO Box 102Serbia Department of Human Nutrition and Dietetics PoznańUniversity of Life SciencesPoznań60-624Poland

The prevalence of nonalcoholic fatty liver disease(NAFLD)is rising worldwide,paralleling the epidemic of *** liver is a key organ for the metabolism of proteins,fats and *** types of fats and carbohydrates in isocaloric diets differently influence fat accumulation in the liver ***,nutrition can manage hepatic and cardiometabolic complications of *** moderately reduced caloric intake,which leads to a weight loss of 5%-10%of initial body weight,is effective in improving liver steatosis and surrogate markers of liver disease *** dietary patterns,the Mediterranean diet mostly prevents the onset of ***,this diet is also the most recommended for the treatment of NAFLD ***,clinical trials based on the dietary interventions in NAFLD patients are *** there are only a few studies examining dietary interventions in clinically advanced stages of NAFLD,such as active and fibrotic steatohepatitis,the optimal diet for patients in these stages of the disease must still be *** this narrative review,we aimed to critically summarize the associations between different dietary patterns,obesity and prevention/risk for NAFLD,to describe specific dietary interventions’impacts on liver steatosis in adults with NAFLD and to provide an updated overview of dietary recommendations that clinicians potentially need to apply in their daily practice.

关键词： Nonalcoholic fatty liver disease Dietary patterns Obesity Diet Mediterranean diet Nutrition Treatment Clinical guidance

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