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Nedeljković N, Nikolić M, Čanović P, Zarić M, Živković Zarić R, Bošković J, Vesović M, Bradić J, Anđić M, Kočović A, Nikolić M, Jakovljević V, Vujić Z, Dobričić V. Synthesis, Characterization, and Investigation of Anti-Inflammatory and Cytotoxic Activities of Novel Thiourea Derivatives of Naproxen. Pharmaceutics 2023; 16:1. [PMID: 38276479 PMCID: PMC10820527 DOI: 10.3390/pharmaceutics16010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 01/27/2024] Open
Abstract
The objective of this study was to synthesize seven novel thiourea derivatives of naproxen (8-14), examine the anti-inflammatory activity of the newly synthesized compounds, investigate the cytotoxic potential of both sets of synthesized compounds (1-7 and 8-14), and select the most promising anti-inflammatory and antitumor drug candidates. The results of the in vivo anti-inflammatory study clearly showed that compounds 8 and 9 were capable of decreasing paw edema, as evident from a high percentage of inhibition (44.83% and 49.29%, respectively). In addition, the results of in vitro enzyme inhibition assays demonstrated that neither of the newly synthesized compounds reached 50% inhibition of 5-LOX at concentrations lower than 100 µM. In terms of antitumor potential, derivatives 3 and 8 exhibited strong cytotoxic effects on the HeLa cell line, suggesting the involvement of the extrinsic pathway of apoptosis. According to the overall results obtained for both sets of synthesized molecules, derivatives 4 and 8 can be underlined as molecules with the strongest anti-inflammatory activity, while derivatives 3 and 8 are the most promising cytotoxic agents.
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Affiliation(s)
- Nikola Nedeljković
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
| | - Miloš Nikolić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
| | - Petar Čanović
- Department of Biochemistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia;
| | - Milan Zarić
- Department of Biochemistry, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia;
| | - Radica Živković Zarić
- Department of Pharmacology and Toxicology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia;
| | - Jelena Bošković
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (J.B.); (Z.V.); (V.D.)
| | - Marina Vesović
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
| | - Jovana Bradić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
- Center of Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (M.N.); (V.J.)
| | - Marijana Anđić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
- Center of Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (M.N.); (V.J.)
| | - Aleksandar Kočović
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (N.N.); (M.V.); (J.B.); (M.A.); (A.K.)
- Center of Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (M.N.); (V.J.)
| | - Marina Nikolić
- Center of Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (M.N.); (V.J.)
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Vladimir Jakovljević
- Center of Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Svetozara Markovića 69, 34000 Kragujevac, Serbia; (M.N.); (V.J.)
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
- Department of Human Pathology, First Moscow State Medical University IM Sechenov, 119435 Moscow, Russia
| | - Zorica Vujić
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (J.B.); (Z.V.); (V.D.)
| | - Vladimir Dobričić
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (J.B.); (Z.V.); (V.D.)
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Savić I, Nikolić M, Nikolić A, Kandić V, Vico I, Duduk N, Stanković S. First Report of Fusarium verticillioides Causing Fusariosis on Triticale Grain in Serbia. Plant Dis 2022; 106:1071. [PMID: 34735280 DOI: 10.1094/pdis-07-21-1579-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- I Savić
- Maize Research Institute, Zemun Polje, Slobodana Bajića 1, 11185 Belgrade, Serbia
| | - M Nikolić
- Maize Research Institute, Zemun Polje, Slobodana Bajića 1, 11185 Belgrade, Serbia
| | - A Nikolić
- Maize Research Institute, Zemun Polje, Slobodana Bajića 1, 11185 Belgrade, Serbia
| | - V Kandić
- Maize Research Institute, Zemun Polje, Slobodana Bajića 1, 11185 Belgrade, Serbia
| | - I Vico
- University in Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia
| | - N Duduk
- University in Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia
| | - S Stanković
- Maize Research Institute, Zemun Polje, Slobodana Bajića 1, 11185 Belgrade, Serbia
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Gurinović M, Nikolić M, Zeković M, Milešević J, Kadvan A, Ranić M, Glibetić M. Implementation of Harmonized Food Consumption Data Collection in the Balkan Region According to the EFSA EU Menu Methodology Standards. Front Nutr 2022; 8:809328. [PMID: 35127791 PMCID: PMC8811292 DOI: 10.3389/fnut.2021.809328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/21/2021] [Indexed: 12/15/2022] Open
Abstract
Initiatives in the Capacity Development in Nutrition Research in the Balkan region in the last decade have been toward the creation of contemporary, harmonized Research Infrastructure (RI) compliant with European standards. This study describes the process of creation and implementation of the European Food Safety Authority (EFSA) EU Menu methodology in the Balkan region during the EFSA support projects for food consumption data collection in four countries (Serbia, Montenegro, Bosnia and Herzegovina, and North Macedonia). This process entailed the application and improvement of an innovative tool, the DIET ASSESS and PLAN (DAP), a platform for standardized food consumption data collection and dietary intake assessment. DAP comprises computerized food consumption, anthropometric measurements, and physical activity questionnaires, validated food picture book, and FoodEx2 exposure hierarchy with sets of facet descriptors of the interest. It hosts the Balkan food platform with a Serbian food composition database (FCDB) and Regional FCDB, compliant with European Food Information Resource (EuroFIR™) standards. The implementation of the DAP platform in national dietary surveys conducted with the support of the EFSA EU Menu project in Balkan countries enabled harmonized food consumption data compilation and reporting. Application of the methodology entailed the development of study protocol and extensive education and training of study personnel. The entire data collection process was managed by internal and external survey coordinators. A pilot study was conducted to test the entire data collection and control process and was afterward used to make necessary improvements and adjustments to meet EU Menu requirements. Data collected are internationally comparable with food consumption data in other European countries within the framework of the EU Menu program. The existence of such data in the Balkan region will catalyze research activities in emerging topics, such as identification of dietary patterns, the establishment of national nutrient reference values and food-based dietary guidelines (not only in Serbia, but in the whole Balkan region), dietary exposure assessments, the endorsement and evaluation of new food legislations, the environmental and other effects of diet on the food system. The developed and implemented methodology underpins evidence-based policy-making processes lacking in the field of public health nutrition in the region.
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Affiliation(s)
- Mirjana Gurinović
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Marina Nikolić
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
| | - Milica Zeković
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Jelena Milešević
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Agnes Kadvan
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Marija Ranić
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Maria Glibetić
- Institute for Medical Research, National Institute of Republic of Serbia, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
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Nikolić M, Milošković A, Jakovljević M, Radenković M, Veličković T, Đuretanović S, Kojadinović N, Nikolić M, Simić V. The first observation of the presence of microplastics in wild common bleak (Alburnus alburnus L.) and standardization of extraction protocols. Kragujevac J Science 2022. [DOI: 10.5937/kgjsci2244267n] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The presence of microplastics (MPs) in the gastrointestinal tract, muscle, and whole-body samples of common bleak Alburnus alburnus L. from Gruža Reservoir (Central Serbia) was studied for the first time. Different protocols for MPs extraction were applied to determine the most efficient one. The study aimed to modify existing protocols to be cost-effective, efficient in digestion, and with no detrimental effect on potentially present MPs polymers. In this study, the digestion with 10% KOH during 48 h at 40°C was efficient for the gastrointestinal tract and muscle. Digestion with 10% KOH during 72 h at 40°C was the most efficient for whole-body samples. The usage of NaClO proved successful in digestion of the gastrointestinal tract overnight at room temperature. Fibers detected in the samples are assumed to be of plastic origin. The general goal was to establish a protocol for extracting MPs from fish tissue in wild populations to obtain results and determine the degree of pollution.
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Homolak J, Nikolić M, Potoč D, Živković M, Bakula D, Budimir I, Pavić I, Hrabar D, Ljubičić N, Vražić D. The onset of ulcerative colitis upon Helicobacter pylori eradication in a 72-year-old woman: report of a rare case with a 3-year follow-up. BMC Gastroenterol 2021; 21:303. [PMID: 34332529 PMCID: PMC8325205 DOI: 10.1186/s12876-021-01876-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 07/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epidemiological studies suggest an inverse association between H. pylori infection/exposure and inflammatory bowel disease prevalence/incidence, however, there are no reports of individual patients who developed a "non-transient" ulcerative colitis (UC) following H. pylori eradication. CASE PRESENTATION We report a case of a 72-year-old female with an elderly-onset UC developed upon H. pylori eradication and a 3-year follow-up of the progression to steroid-dependent colitis complicated with enteropathic arthritis and final containment of the disease with golimumab. In our patient, H. pylori eradication was associated with the development of pancolitis that evolved into clinically, endoscopically, and pathohistologically confirmed UC. CONCLUSIONS The case of our patient provides a unique clinical context for a growing body of literature suggesting molecular mechanisms involved in the interaction of genes, environment, and microbiota to be of critical importance in the etiopathogenesis of UC, and thus, provides a valuable set of complementary translational information for preclinical and epidemiological research on the topic.
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Affiliation(s)
- J Homolak
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia
| | - M Nikolić
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia. .,University of Zagreb School of Dental Medicine, Zagreb, Croatia.
| | - D Potoč
- University of Zagreb School of Dental Medicine, Zagreb, Croatia
| | - M Živković
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia
| | - D Bakula
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia
| | - I Budimir
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia.,University of Zagreb School of Medicine, Zagreb, Croatia
| | - I Pavić
- Department of Pathology, University Hospital Centre "Sestre Milosrdnice", Zagreb, Croatia
| | - D Hrabar
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia.,University of Zagreb School of Medicine, Zagreb, Croatia
| | - N Ljubičić
- Gastroenterology and Hepatology Unit, University Hospital Centre "Sestre Milosrdnice", Vinogradska 29, 10000, Zagreb, Croatia.,University of Zagreb School of Dental Medicine, Zagreb, Croatia.,University of Zagreb School of Medicine, Zagreb, Croatia
| | - D Vražić
- Department of Periodontology, University of Zagreb School of Dental Medicine, Zagreb, Croatia
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Giacometti J, Muhvić D, Grubić-Kezele T, Nikolić M, Šoić-Vranić T, Bajek S. Olive Leaf Polyphenols (OLPs) Stimulate GLUT4 Expression and Translocation in the Skeletal Muscle of Diabetic Rats. Int J Mol Sci 2020; 21:ijms21238981. [PMID: 33256066 PMCID: PMC7729747 DOI: 10.3390/ijms21238981] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 11/24/2020] [Indexed: 12/18/2022] Open
Abstract
Skeletal muscles are high-insulin tissues responsible for disposing of glucose via the highly regulated process of facilitated glucose transporter 4 (GLUT4). Impaired insulin action in diabetes, as well as disorders of GLUT4 vesicle trafficking in the muscle, are involved in defects in insulin-stimulated GLUT4 translocation. Since the Rab GTPases are the main regulators of vesicular membrane transport in exo- and endo-cytosis, in the present work, we studied the effect of olive leaf polyphenols (OLPs) on Rab8A, Rab13, and Rab14 proteins of the rat soleus muscle in a model of streptozotocin (SZT)-induced diabetes (DM) in a dose-dependent manner. Glucose, cholesterol, and triglyceride levels were determined in the blood, morphological changes of the muscle tissue were captured by hematoxylin and eosin histological staining, and expression of GLUT4, Rab8A, Rab13, and Rab14 proteins were analyzed in the rat soleus muscle by the immunofluorescence staining and immunoblotting. OLPs significantly reduced blood glucose level in all treated groups. Furthermore, significantly reduced blood triglycerides were found in the groups with the lowest and highest OLPs treatment. The dynamics of activation of Rab8A, Rab13, and Rab14 was OLPs dose-dependent and more effective at higher OLP doses. Thus, these results indicate a beneficial role of phenolic compounds from the olive leaf in the regulation of glucose homeostasis in the skeletal muscle.
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Affiliation(s)
- Jasminka Giacometti
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia
- Correspondence: ; Tel.: +385-51-584-557
| | - Damir Muhvić
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.M.); (T.G.-K.)
| | - Tanja Grubić-Kezele
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.M.); (T.G.-K.)
- Clinical Department for Clinical Microbiology, Clinical Hospital Center Rijeka, Krešimirova 42, 51000 Rijeka, Croatia
| | - Marina Nikolić
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
| | - Tamara Šoić-Vranić
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
| | - Snježana Bajek
- Department of Anatomy, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (M.N.); (T.Š.-V.); (S.B.)
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Milutinović DV, Brkljačić J, Teofilović A, Bursać B, Nikolić M, Gligorovska L, Kovačević S, Djordjevic A, Preitner F, Tappy L, Matić G, Veličković N. Chronic Stress Potentiates High Fructose-Induced Lipogenesis in Rat Liver and Kidney. Mol Nutr Food Res 2020; 64:e1901141. [PMID: 32379936 DOI: 10.1002/mnfr.201901141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/16/2020] [Indexed: 12/15/2022]
Abstract
SCOPE Intake of fructose-sweetened beverages and chronic stress (CS) both increase risk of cardiometabolic diseases. The aim is to investigate whether these factors synergistically perturb lipid metabolism in rat liver and kidney. METHODS AND RESULTS Fractional de novo lipogenesis (fDNL), intrahepatic- and intrarenal-triglycerides (IHTG and IRTG), de novo palmitate (DNPalm) content, FA composition, VLDL-TGs kinetics, and key metabolic gene expression at the end of the feeding and non-feeding phases in rats exposed to standard chow diet, chow diet + CS, 20% liquid high-fructose supplementation (HFr), or HFr+CS are measured. HFr induces hypertriglyceridemia, up-regulates fructose-metabolism and gluconeogenic enzymes, increases IHTG and DNPalm content in IHTG and IRTG, and augments fDNL at the end of the feeding phase. These changes are diminished after the non-feeding phase. CS does not exert such effects, but when combined with HFr, it reduces IHTG and visceral adiposity, enhances lipogenic gene expression and fDNL, and increases VLDL-DNPalm secretion. CONCLUSION Liquid high-fructose supplementation increases IHTG and VLDL-TG secretion after the feeding phase, the latter being the result of stimulated hepatic and renal DNL. Chronic stress potentiates the effects of high fructose on fDNL and export of newly synthesized VLDL-TGs, and decreases fructose-induced intrahepatic TG accumulation after the feeding phase.
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Affiliation(s)
- Danijela Vojnović Milutinović
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Jelena Brkljačić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Ana Teofilović
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Biljana Bursać
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Marina Nikolić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Ljupka Gligorovska
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Sanja Kovačević
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Ana Djordjevic
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Frederic Preitner
- Mouse Metabolic Facility (MEF), Center for Integrative Genomics, University of Lausanne, Lausanne, CH-1015, Switzerland
| | - Luc Tappy
- Department of Physiology, University of Lausanne, UNIL-CHUV, Rue du Bugnon 7, Lausanne, CH-1005, Switzerland
| | - Gordana Matić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
| | - Nataša Veličković
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd., Belgrade, 11000, Serbia
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Nikolić M, Samolov A, Godunov A, Vušković L, Popović S. Characterizing plasma with emission tomography-Feasibility study on synthetic and experimental data. Rev Sci Instrum 2020; 91:053102. [PMID: 32486762 DOI: 10.1063/1.5138921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
We present a feasibility study on different tomographic algorithms to overcome the issues of finite sets of projection data, limited viewing angles, and noisy data, which cause the tomographic reconstruction to be an ill-posed inversion problem. We investigated three approaches: single angle Abel inversion, two angle approach, and multiple angle 2D plasma tomography. These methods were tested on symmetric and asymmetric sample functions and on experimental results from a supersonic flowing argon microwave plasma sustained in a cylindrical quartz cavity. The analysis focused on the afterglow region of the microwave flow where a plasmoid-like formation was observed. We investigated the effects of the uniform random noise added to the simulated data by applying smoothing techniques. The quality of reconstructed images was assessed by using peak signal-to-noise ratio and universal quality image measures. The results showed that the Abel inversion approach could be employed only when the system is radially symmetric, while the systems with slight asymmetry could be reconstructed with the two angle approach. In the complete absence of symmetry, full 2D tomographic reconstruction should be applied. The data analysis showed that the best results were obtained by employing either the filtered back projection or the simultaneous algebraic reconstruction technique. The total variation minimization method proved to be the best denoising technique. Each approach was used to obtain the spatial distributions of argon excited states taken at three positions along the plasmoid-like structure. The results indicated that the plasma was asymmetric with argon populating the cavity surface.
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Affiliation(s)
- M Nikolić
- Department of Physics and Astronomy, University of San Francisco, San Francisco, California 94117, USA
| | - A Samolov
- Varian Semiconductor Equipment, Silicon Systems Group, Applied Materials, Gloucester, Massachusetts 01930, USA
| | - A Godunov
- Department of Physics, Center for Accelerator Science, Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Vušković
- Department of Physics, Center for Accelerator Science, Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Popović
- Department of Physics, Center for Accelerator Science, Old Dominion University, Norfolk, Virginia 23529, USA
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Spiroski I, Nikolić M, Kochubovski M, Gurinović M, Ristovska G, Kadvan A. Energy, macronutrients and dietary fibre intake among adults in North Macedonia. Cent Eur J Public Health 2020; 28:24-32. [PMID: 32228813 DOI: 10.21101/cejph.a5345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/12/2019] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The present research aimed to estimate macronutrients intake among adults in North Macedonia and to identify their predominant food sources. METHODS Within this cross-sectional study dietary data were collected using repeated 24h recall interviews. Nationwide, adults aged 18+ were recruited. Dietary data, anthropometric measures and socio-demographic characteristics were available for 496 participants. Nutrient intake was analyzed using the Balkan Food Composition Database and Diet Assess and Plan platform. Macedonian dietary guidelines were used for estimation of inadequacy. RESULTS Significant differences in macronutrients intake are noticed between age groups within certain socio-demographic factors. Total sugar intake was significantly higher among young adult females comparing with those older than 25 years (p = 0.049). Young urban females have significantly higher fats intake than older participants (p = 0.038). Higher total daily energy, proteins, fats and carbohydrates intake (p = 0.033, p = 0.043, p = 0.032, p = 0.042, respectively) was noticed among young urban males when compared to older ones. Only dietary fibre intake was higher among older urban males (p = 0.030). Univariate linear regression models showed that obese participants had significantly higher relative proteins intake comparing with those having BMI within recommended range (p = 0.024, β = 1.21). Relative carbohydrates intake was significantly lower among males (p = 0.018, β = -2.077) and among highly educated participants (p = 0.018, β = -4.304). Participants with tertiary education had higher relative fats intake (p = 0.012, β = 4.213). CONCLUSION Macronutrients intake of adults should be improved. There is higher intake of dietary fats and need for an increase of complex carbohydrates intake, particularly dietary fibre. Findings of this survey should be used in shaping, fine-tuning and implementing food and nutrition policies that will stimulate healthier diets for prevention of diet related non-communicable diseases.
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Affiliation(s)
- Igor Spiroski
- Institute of Public Health, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | | | - Mihail Kochubovski
- Institute of Public Health, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Mirjana Gurinović
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Gordana Ristovska
- Institute of Public Health, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Agnes Kadvan
- Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Belgrade, Serbia
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10
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Abstract
Abstract
This paper presents reduction of ZnO in EPDM formulations and its influence on efficiency of cable isolation by measuring cure behavior, electrical and mechanical properties before and after ageing. These experiments were performed on EPDM formulations by changing three key variables in formulation (concentration of ZnO, type of peroxide and content of ethylene in EPDM). The rheological characterization showed that replacing ZnO in EPDM with proper ethylene content (75 %) with the lower content of ZnO (5 phr) in the recipes, resulted in lower cure time and higher scorch time and higher crosslinking density, which was further supported by Fourier transform infrared spectroscopy (FTIR). Mechanical properties before aging (elongation at break, tensile strength, and hardness) are greater with smaller content of ZnO. The value of percentage change of the properties after aging at 135 °C for 7 days, indicates that recipe D (Perkadox 14/40 (Di (tert-butyl peroxy isopropyl) benzene (DTBPIB)) peroxide cured EPDM has the best performance at tensile strength, and elongation at break. What is more, recipe D, containing 5 phr of ZnO exhibits the desired electrical performance. The paper provides sufficient experimental background to indentify the key physical aspects associated with each of the instabilities that occur at higher amounts of ZnO in formulation, and this in turns provides insight into different occurrences of each instability and how they can be minimized by reduction of ZnO in EPDM mixture.
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Affiliation(s)
| | - L. Nikolić
- Faculty of Technology , University of Niš, Leskovac , Serbia
| | - M. Nikolić
- Faculty of Technology and Metallurgy , University of Belgrade, Belgrade , Serbia
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11
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Nikolić M, Milešević J, Zeković M, Gurinović M, Glibetić M. The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region. Front Nutr 2018; 5:78. [PMID: 30271776 PMCID: PMC6146086 DOI: 10.3389/fnut.2018.00078] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 08/15/2018] [Indexed: 01/17/2023] Open
Abstract
Assessment of portion sizes is an important factor for the accuracy of food consumption surveys. The objective of this study was to develop and validate a food atlas of commonly consumed foods in the Balkan region in order to improve the accuracy of portion size estimation for food consumption surveys. A list of 135 foods and their portion sizes was based on previously conducted food consumption surveys in this region. Food was cooked, measured and served in three or four portion sizes right before being photographed. A validation study was conducted through the visual perception method. Without receiving training on usage of the food picture book, participants were asked to evaluate two portion sizes of 20 selected foods by comparison with a photo series of each food. Portion sizes were evaluated by 18 nutrition professionals and 17 lay individuals who had no nutritional education. Mean differences and the standard deviations of the mean differences (SD) between the portions estimated by each participant and the served portion were calculated. The percentages of participants who selected the correct, adjacent or distant portion size also were calculated. The number of food items that were quantified within the predefined acceptable range (i.e., mean difference < ∣ 0·7 ∣ and SD < 1) was 16 (80%) among lay individuals and 17 (85%) among nutritional professionals. Among 16 photo series that were assessed as "acceptable," the percentage of all participants, who selected the correct picture, was between 44.3 and 82.9%, with an average of 60.2%. Only three foods were assessed correctly by <50% participants. The percentage of participants who selected the correct or adjacent serving size was above 98% for both lay and professional evaluators. This is the first food atlas containing representative foods and recipes commonly consumed in the Balkan region. However, further adjustments of the methodology should include larger number of food items to be tested, involvement of more participants and provision of training for the users of the food atlas. This food atlas could be used in food consumption surveys in the Balkan region after further testing and validation.
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Affiliation(s)
- Marina Nikolić
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Jelena Milešević
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Milica Zeković
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Mirjana Gurinović
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
| | - Marija Glibetić
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
- Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA), Belgrade, Serbia
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12
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Novaković R, Geelen A, Ristić-Medić D, Nikolić M, Souverein OW, McNulty H, Duffy M, Hoey L, Dullemeijer C, Renkema JMS, Gurinović M, Glibetić M, de Groot LCPGM, Van't Veer P. Systematic Review of Observational Studies with Dose-Response Meta-Analysis between Folate Intake and Status Biomarkers in Adults and the Elderly. Ann Nutr Metab 2018; 73:30-43. [PMID: 29879709 DOI: 10.1159/000490003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/14/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Dietary reference values for folate intake vary widely across Europe. METHODS MEDLINE and Embase through November 2016 were searched for data on the association between folate intake and biomarkers (serum/plasma folate, red blood cell [RBC] folate, plasma homocysteine) from observational studies in healthy adults and elderly. The regression coefficient of biomarkers on intake (β) was extracted from each study, and the overall and stratified pooled β and SE (β) were obtained by random effects meta-analysis on a double log scale. These dose-response estimates may be used to derive folate intake reference values. RESULTS For every doubling in folate intake, the changes in serum/plasma folate, RBC folate and plasma homocysteine were +22, +21, and -16% respectively. The overall pooled regression coefficients were β = 0.29 (95% CI 0.21-0.37) for serum/plasma folate (26 estimates from 17 studies), β = 0.28 (95% CI 0.21-0.36) for RBC (13 estimates from 11 studies), and β = -0.21 (95% CI -0.31 to -0.11) for plasma homocysteine (10 estimates from 6 studies). CONCLUSION These estimates along with those from randomized controlled trials can be used for underpinning dietary recommendations for folate in adults and elderly.
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Affiliation(s)
- Romana Novaković
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Anouk Geelen
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - Danijela Ristić-Medić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Marina Nikolić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Olga W Souverein
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - Helene McNulty
- School of Biomedical Sciences, University of Ulster, Coleraine Campus, Londonderry, United Kingdom
| | - Maresa Duffy
- School of Biomedical Sciences, University of Ulster, Coleraine Campus, Londonderry, United Kingdom
| | - Leane Hoey
- School of Biomedical Sciences, University of Ulster, Coleraine Campus, Londonderry, United Kingdom
| | - Carla Dullemeijer
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - Jacoba M S Renkema
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - Mirjana Gurinović
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Marija Glibetić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Lisette C P G M de Groot
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - Pieter Van't Veer
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, the Netherlands
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Nikolić M, Stanković A. Comments on: "Microbial flora on cell-phones in an orthopedic surgery room before and after decontamination." by J. Murgier, J.F. Coste, E. Cavaignac, X. Bayle-Iniguez, P. Chiron, P. Bonnevialle, J.M. Laffosse, published in Orthop Traumatol Surg Res. 2016;102:1093-1096. Orthop Traumatol Surg Res 2017. [PMID: 28627409 DOI: 10.1016/j.otsr.2017.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- M Nikolić
- Public Health Institute, Faculty of medicine, University of Nis, 18000 Nis, Serbia.
| | - A Stanković
- Public Health Institute, Faculty of medicine, University of Nis, 18000 Nis, Serbia
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14
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Milutinović D, Nikolić M, Veličković N, Djordjevic A, Bursać B, Nestorov J, Teofilović A, Antić I, Macut J, Zidane A, Matić G, Macut D. Enhanced Inflammation without Impairment of Insulin Signaling in the Visceral Adipose Tissue of 5α-Dihydrotestosterone-Induced Animal Model of Polycystic Ovary Syndrome. Exp Clin Endocrinol Diabetes 2017; 125:522-529. [DOI: 10.1055/s-0043-104531] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractPolycystic ovary syndrome is a heterogeneous endocrine and metabolic disorder associated with abdominal obesity, dyslipidemia and insulin resistance. Since abdominal obesity is characterized by low-grade inflammation, the aim of the study was to investigate whether visceral adipose tissue inflammation linked to abdominal obesity and dyslipidemia could lead to impaired insulin sensitivity in the animal model of polycystic ovary syndrome.Female Wistar rats were treated with nonaromatizable 5α-dihydrotestosterone pellets in order to induce reproductive and metabolic characteristics of polycystic ovary syndrome. Glucose, triglycerides, non-esterified fatty acids and insulin were determined in blood plasma. Visceral adipose tissue inflammation was evaluated by the nuclear factor kappa B intracellular distribution, macrophage migration inhibitory factor protein level, as well as TNFα, IL6 and IL1β mRNA levels. Insulin sensitivity was assessed by intraperitoneal glucose tolerance test and homeostasis model assessment index, and through analysis of insulin signaling pathway in the visceral adipose tissue.Dihydrotestosterone treatment led to increased body weight, abdominal obesity and elevated triglycerides and non-esterified fatty acids, which were accompanied by the activation of nuclear factor kappa B and increase in macrophage migration inhibitory factor, IL6 and IL1β levels in the visceral adipose tissue. In parallel, insulin sensitivity was affected in 5α-dihydrotestosterone-treated animals only at the systemic and not at the level of visceral adipose tissue.The results showed that abdominal obesity and dyslipidemia in the animal model of polycystic ovary syndrome were accompanied with low-grade inflammation in the visceral adipose tissue. However, these metabolic disturbances did not result in decreased tissue insulin sensitivity.
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Affiliation(s)
- Danijela Milutinović
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Marina Nikolić
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Nataša Veličković
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Ana Djordjevic
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Biljana Bursać
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Jelena Nestorov
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Ana Teofilović
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Ivana Antić
- Clinic of Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Jelica Macut
- UMC Bežanijska kosa, Bežanijska kosa bb, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Abdulbaset Zidane
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Gordana Matić
- Department of Biochemistry, Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - Djuro Macut
- Clinic of Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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15
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Budimir I, Jurčić P, Nikolić M, Ljubičić N. Upper gastrointestinal bleeding caused by fistula of the stomach and splenic artery pseudoaneurysm. Br J Hosp Med (Lond) 2016; 77:721. [PMID: 27937019 DOI: 10.12968/hmed.2016.77.12.721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- I Budimir
- Consultant Gastroenterologist and Hepatologist, Department of Gastroenterology and Hepatology, Clinic of Internal Medicine, Sestre milosrdnice University Hospital Centre, Zagreb, Croatia
| | - P Jurčić
- Medical Oncology Trainee, Department of Radiotherapy and Medical Oncology, University Hospital for Tumours, Sestre milosrdnice University Hospital Centre, 10000, Zagreb, Croatia
| | - M Nikolić
- Consultant Gastroenterologist and Hepatologist, Division of Gastroenterology, Department of Internal Medicine, Sestre milosrdnice Clinical Hospital Centre, University of Zagreb School of Medicine and School of Dental Medicine, Zagreb, Croatia
| | - N Ljubičić
- Professor of Medicine and Consultant Gastroenterologist and Hepatologist, Division of Gastroenterology, Department of Internal Medicine, Sestre milosrdnice Clinical Hospital Centre, University of Zagreb School of Medicine and School of Dental Medicine, Zagreb, Croatia
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16
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Gurinović M, Milešević J, Kadvan A, Nikolić M, Zeković M, Djekić-Ivanković M, Dupouy E, Finglas P, Glibetić M. Development, features and application of DIET ASSESS & PLAN (DAP) software in supporting public health nutrition research in Central Eastern European Countries (CEEC). Food Chem 2016; 238:186-194. [PMID: 28867092 DOI: 10.1016/j.foodchem.2016.09.114] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/08/2016] [Accepted: 09/17/2016] [Indexed: 10/21/2022]
Abstract
In order to meet growing public health nutrition challenges in Central Eastern European Countries (CEEC) and Balkan countries, development of a Research Infrastructure (RI) and availability of an effective nutrition surveillance system are a prerequisite. The building block of this RI is an innovative tool called DIET ASSESS & PLAN (DAP), which is a platform for standardized and harmonized food consumption collection, comprehensive dietary intake assessment and nutrition planning. Its unique structure enables application of national food composition databases (FCDBs) from the European food composition exchange platform (28 national FCDBs) developed by EuroFIR (http://www.eurofir.org/) and in addition allows communication with other tools. DAP is used for daily menu and/or long-term diet planning in diverse public sector settings, foods design/reformulation, food labelling, nutrient intake assessment and calculation of the dietary diversity indicator, Minimum Dietary Diversity-Women (MDD-W). As a validated tool in different national and international projects, DAP represents an important RI in public health nutrition epidemiology in the CEEC region.
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Affiliation(s)
- Mirjana Gurinović
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Serbia; Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Serbia.
| | - Jelena Milešević
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Serbia; Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Serbia
| | - Agnes Kadvan
- Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Serbia
| | - Marina Nikolić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Serbia; Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Serbia
| | - Milica Zeković
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Serbia
| | | | - Eleonora Dupouy
- FAO Regional Office for Europe and Central Asia (REU), Budapest, Hungary
| | | | - Maria Glibetić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Serbia; Capacity Development Network in Nutrition in Central and Eastern Europe, CAPNUTRA, Serbia
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Gurinović M, Milešević J, Kadvan A, Djekić-Ivanković M, Debeljak-Martačić J, Takić M, Nikolić M, Ranković S, Finglas P, Glibetić M. Establishment and advances in the online Serbian food and recipe data base harmonized with EuroFIR™ standards. Food Chem 2016; 193:30-8. [DOI: 10.1016/j.foodchem.2015.01.107] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 10/24/2022]
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18
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Nikolić M, Hanževački M, Jurčić P, Budimir I, Ljubičić N. [APPROACH TO PATIENTS WITH GASTROINTESTINAL BLEEDING]. Acta Med Croatica 2015; 69:293-304. [PMID: 29083840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the developed Western countries, despite the accumulation of knowledge about the causes and treatment of gastrointestinal bleeding, as well as the experience of gastroenterologists-endoscopists using sophisticated endoscopic devices, the number of hospitalizations and mortality rates has not declined as expected. The most likely explanations are the following: aging population, increased prevalence of alcoholic liver cirrhosis, gastroesophageal reflux disease and obesity, Helicobacter pylori antibiotic resistance, using dual anti-aggregation therapy, anticoagulants, and excessive use of nonsteroidal anti-inflammatory drugs. The aim of this paper is to show the incidence and the most common signs and symptoms of gastrointestinal bleeding. The aim is also to present initial clinical evaluation, diagnostic methods, the main causes of gastrointestinal bleeding, endoscopic hemostatic modalities and treatment of bleeding from the upper and lower gastrointestinal tract. Using the MEDLINE and Ovid databases, we searched the meta-analyses and systematic reviews published in English during the 2005-2015 period. Meta-analyses included results of randomized, double-blind studies on adults treated for gastrointestinal bleeding. Included were guidelines of the European and American Society of Gastroenterological Endoscopy, as well as recent expert work. In this review, we bring the state-of-the-art on gastrointestinal bleeding, new classification of gastrointestinal bleeding from the upper, mid and lower gut, controversy of nasogastric tube placement, use of prokinetic agents and inhibitor proton pumps in acute gastrointestinal bleeding from the upper tract, restrictive transfusion strategy, useful clinical stratification of the severity of bleeding, indications for hospitalization and outcome of using the clinical bleeding score, proper use of gastroprotection in patients at a high risk of peptic ulcer, the need of initial endoscopy, variceal assessment in newly diagnosed liver cirrhosis, primary and secondary prophylaxis of variceal bleeding, new endoscopic hemostatic modality, and radiological and surgical treatment of gastrointestinal bleeding. The educational nature of this review could serve for establishing Croatian guideline for the management of gastrointestinal bleeding.
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Tepavčević S, Milutinović DV, Macut D, Stojiljković M, Nikolić M, Božić-Antić I, Ćulafić T, Bjekić-Macut J, Matić G, Korićanac G. Cardiac fatty acid uptake and metabolism in the rat model of polycystic ovary syndrome. Endocrine 2015; 50:193-201. [PMID: 25702158 DOI: 10.1007/s12020-015-0558-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/17/2015] [Indexed: 12/20/2022]
Abstract
Polycystic ovary syndrome (PCOS) is associated with an altered plasma lipid profile and increased risk for cardiovascular diseases. We hypothesized that molecular mechanisms underlying cardiac pathology in PCOS involve changes in expression and subcellular localization of several key proteins involved in cardiac lipid transport and metabolism, such as fatty acid transporter CD36, lipin 1, peroxisome proliferator-activated receptor α (PPARα), peroxisome proliferator-activated receptor γ coactivator-1 (PGC1), and carnitine palmitoyltransferase 1 (CPT1). We used the animal model of PCOS obtained by treating female rats with dihydrotestosterone (DHT). Protein levels of CD36, lipin 1, PPARα, PGC1, and antioxidative enzymes were assessed by Western blot in different cardiac cell compartments. Cardiac triglycerides (TG) and lipid peroxidation were also measured. The content of CD36 was decreased in both the cardiac plasma membranes and intracellular pool. On the other hand, total content of cardiac lipin 1 in DHT-treated rats was elevated, in contrast to decreased microsomal lipin 1 content. An increase in nuclear content of lipin 1 was observed together with elevation of nuclear PPARα and PGC1, and an increase in CPT1 expression. However, lipid peroxidation was reduced in the heart, without alterations in antioxidative enzymes expression and cardiac TG content. The results indicate that treatment of female rats with DHT is accompanied by a decrease of fatty acid uptake and a reduction of lipid peroxidation in the heart. The observed elevation of lipin 1, PPARα, PGC1, and CPT1 expression suggests that cardiac fatty acid metabolism is shifted toward mitochondrial beta oxidation.
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Affiliation(s)
- Snežana Tepavčević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Republic of Serbia
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20
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Tepavčević S, Milutinović D, Macut D, Stanišić J, Nikolić M, Božić-Antić I, Rodaljević S, Bjekić-Macut J, Matić G, Korićanac G. Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone. Exp Clin Endocrinol Diabetes 2015; 123:303-7. [DOI: 10.1055/s-0035-1548929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- S. Tepavčević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - D. Milutinović
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - D. Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - J. Stanišić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - M. Nikolić
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - I. Božić-Antić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - S. Rodaljević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - G. Matić
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, Belgrade, Serbia
| | - G. Korićanac
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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Nikolić M, Macut D, Djordjevic A, Veličković N, Nestorović N, Bursać B, Antić IB, Macut JB, Matić G, Vojnović Milutinović D. Possible involvement of glucocorticoids in 5α-dihydrotestosterone-induced PCOS-like metabolic disturbances in the rat visceral adipose tissue. Mol Cell Endocrinol 2015; 399:22-31. [PMID: 25179821 DOI: 10.1016/j.mce.2014.08.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 08/04/2014] [Accepted: 08/27/2014] [Indexed: 01/12/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a reproductive and metabolic disorder characterized by hyperandrogenism, ovulatory dysfunction, visceral obesity and insulin resistance. We hypothesized that changes in glucocorticoid metabolism and signaling in the visceral adipose tissue may contribute to disturbances of lipid metabolism in the rat model of PCOS obtained by 5α-dihydrotestosterone (DHT) treatment of prepubertal female Wistar rats. The results confirmed that DHT treatment caused anovulation, obesity and dyslipidemia. Enhanced glucocorticoid prereceptor metabolism, assessed by elevated intracellular corticosterone and increased 11 beta-hydroxysteroid dehydrogenase type 1 mRNA and protein levels, was accompanied by glucocorticoid receptor (GR) nuclear accumulation. In concert with the increased expression of GR-regulated prolipogenic genes (lipin-1, sterol regulatory element binding protein 1, fatty acid synthase, phosphoenolpyruvate carboxykinase), histological analyses revealed hypertrophic adipocytes. The results suggest that glucocorticoids influence lipid metabolism in the visceral adipose tissue in the way that may contribute to pathogenesis of metabolic disturbances associated with PCOS.
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Affiliation(s)
- Marina Nikolić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Djuro Macut
- Clinic of Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and School of Medicine, University of Belgrade, Dr Subotića 13, Belgrade 11000, Serbia
| | - Ana Djordjevic
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Nataša Veličković
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Nataša Nestorović
- Department of Cytology, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Biljana Bursać
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Ivana Božić Antić
- Clinic of Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and School of Medicine, University of Belgrade, Dr Subotića 13, Belgrade 11000, Serbia
| | | | - Gordana Matić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia
| | - Danijela Vojnović Milutinović
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., Belgrade 11000, Serbia.
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Tepavčević S, Vojnović Milutinović D, Macut D, Žakula Z, Nikolić M, Božić-Antić I, Romić S, Bjekić-Macut J, Matić G, Korićanac G. Dihydrotestosterone deteriorates cardiac insulin signaling and glucose transport in the rat model of polycystic ovary syndrome. J Steroid Biochem Mol Biol 2014; 141:71-6. [PMID: 24472754 DOI: 10.1016/j.jsbmb.2014.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 12/24/2013] [Accepted: 01/16/2014] [Indexed: 01/05/2023]
Abstract
It is supposed that women with polycystic ovary syndrome (PCOS) are prone to develop cardiovascular disease as a consequence of multiple risk factors that are mostly related to the state of insulin resistance and consequent hyperinsulinemia. In the present study, we evaluated insulin signaling and glucose transporters (GLUT) in cardiac cells of dihydrotestosterone (DHT) treated female rats as an animal model of PCOS. Expression of proteins involved in cardiac insulin signaling pathways and glucose transporters, as well as their phosphorylation or intracellular localization were studied by Western blot analysis in DHT-treated and control rats. Treatment with DHT resulted in increased body mass, absolute mass of the heart, elevated plasma insulin concentration, dyslipidemia and insulin resistance. At the molecular level, DHT treatment did not change protein expression of cardiac insulin receptor and insulin receptor substrate 1, while phosphorylation of the substrate at serine 307 was increased. Unexpectedly, although expression of downstream Akt kinase and its phosphorylation at threonine 308 were not altered, phosphorylation of Akt at serine 473 was increased in the heart of DHT-treated rats. In contrast, expression and phosphorylation of extracellular signal regulated kinases 1/2 were decreased. Plasma membrane contents of GLUT1 and GLUT4 were decreased, as well as the expression of GLUT4 in cardiac cells at the end of androgen treatment. The obtained results provide evidence for alterations in expression and especially in functional characteristics of insulin signaling molecules and glucose transporters in the heart of DHT-treated rats with PCOS, indicating impaired cardiac insulin action.
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Affiliation(s)
- Snežana Tepavčević
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
| | | | - Djuro Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Zorica Žakula
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
| | - Marina Nikolić
- Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia.
| | - Ivana Božić-Antić
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Snježana Romić
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
| | | | - Gordana Matić
- Institute for Biological Research "Siniša Stanković", University of Belgrade, Belgrade, Serbia.
| | - Goran Korićanac
- Laboratory for Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
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23
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Novaković R, Cavelaars A, Geelen A, Nikolić M, Altaba II, Viñas BR, Ngo J, Golsorkhi M, Medina MW, Brzozowska A, Szczecinska A, de Cock D, Vansant G, Renkema M, Majem LS, Moreno LA, Glibetić M, Gurinović M, van't Veer P, de Groot LCPGM. Socio-economic determinants of micronutrient intake and status in Europe: a systematic review. Public Health Nutr 2014; 17:1031-45. [PMID: 23750829 PMCID: PMC10282449 DOI: 10.1017/s1368980013001341] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 03/06/2013] [Accepted: 03/12/2013] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To provide the evidence base for targeted nutrition policies to reduce the risk of micronutrient/diet-related diseases among disadvantaged populations in Europe, by focusing on: folate, vitamin B12, Fe, Zn and iodine for intake and status; and vitamin C, vitamin D, Ca, Se and Cu for intake. DESIGN MEDLINE and Embase databases were searched to collect original studies that: (i) were published from 1990 to 2011; (ii) involved >100 subjects; (iii) had assessed dietary intake at the individual level; and/or (iv) included best practice biomarkers reflecting micronutrient status. We estimated relative differences in mean micronutrient intake and/or status between the lowest and highest socio-economic groups to: (i) evaluate variation in intake and status between socio-economic groups; and (ii) report on data availability. SETTING Europe. SUBJECTS Children, adults and elderly. RESULTS Data from eighteen publications originating primarily from Western Europe showed that there is a positive association between indicators of socio-economic status and micronutrient intake and/or status. The largest differences were observed for intake of vitamin C in eleven out of twelve studies (5-47 %) and for vitamin D in total of four studies (4-31 %). CONCLUSIONS The positive association observed between micronutrient intake and socio-economic status should complement existing evidence on socio-economic inequalities in diet-related diseases among disadvantaged populations in Europe. These findings could provide clues for further research and have implications for public health policy aimed at improving the intake of micronutrients and diet-related diseases.
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Affiliation(s)
- Romana Novaković
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Tadeuska Koscuska 1, 11000 Belgrade, Serbia
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Adriënne Cavelaars
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Anouk Geelen
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Marina Nikolić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Tadeuska Koscuska 1, 11000 Belgrade, Serbia
| | - Iris Iglesia Altaba
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, School of Health Science (EUCS), University of Zaragoza, Zaragoza, Spain
| | - Blanca Roman Viñas
- Community Nutrition Research Centre of the Nutrition Research Foundation, University of Barcelona, Barcelona, Spain
| | - Joy Ngo
- Community Nutrition Research Centre of the Nutrition Research Foundation, University of Barcelona, Barcelona, Spain
| | - Mana Golsorkhi
- Department of Sport and Health Sciences, Oxford Brookes University, Oxford, UK
| | - Marisol Warthon Medina
- Centre for Applied Sport and Exercise Sciences, University of Central Lancashire, Preston, UK
| | - Anna Brzozowska
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), Warsaw, Poland
| | - Anna Szczecinska
- Faculty of Human Nutrition and Consumer Sciences, Warsaw University of Life Sciences (WULS-SGGW), Warsaw, Poland
| | - Diederik de Cock
- Department of Nutrition–Public Health Medicine, LFoRCe (Leuven Food Science and Nutrition Research Centre), Catholic University, Leuven, Belgium
| | - Greet Vansant
- Department of Nutrition–Public Health Medicine, LFoRCe (Leuven Food Science and Nutrition Research Centre), Catholic University, Leuven, Belgium
| | - Marianne Renkema
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Lluís Serra Majem
- Community Nutrition Research Centre of the Nutrition Research Foundation, University of Barcelona, Barcelona, Spain
- Department of Clinical Sciences, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Luis Aznar Moreno
- Growth, Exercise, Nutrition and Development (GENUD) Research Group, School of Health Science (EUCS), University of Zaragoza, Zaragoza, Spain
| | - Maria Glibetić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Tadeuska Koscuska 1, 11000 Belgrade, Serbia
| | - Mirjana Gurinović
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Tadeuska Koscuska 1, 11000 Belgrade, Serbia
| | - Pieter van't Veer
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
| | - Lisette CPGM de Groot
- Division of Human Nutrition, Wageningen University and Research Centre, Wageningen, The Netherlands
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24
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Nikolić M, Glibetić M, Gurinović M, Milešević J, Khokhar S, Chillo S, Abaravicius JA, Bordoni A, Capozzi F. Identifying critical nutrient intake in groups at risk of poverty in Europe: the CHANCE project approach. Nutrients 2014; 6:1374-93. [PMID: 24699195 PMCID: PMC4011040 DOI: 10.3390/nu6041374] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 03/06/2014] [Accepted: 03/13/2014] [Indexed: 11/23/2022] Open
Abstract
The aim of the CHANCE project is to develop novel and affordable nutritious foods to optimize the diet and reduce the risk of diet-related diseases among groups at risk of poverty (ROP). This paper describes the methodology used in the two initial steps to accomplish the project’s objective as follows: 1. a literature review of existing data and 2. an identification of ROP groups with which to design and perform the CHANCE nutritional survey, which will supply new data that is useful for formulating the new CHANCE food. Based on the literature review, a low intake of fruit and vegetables, whole grain products, fish, energy, fiber, vitamins B1, B2, B3, B6, B12 and C, folate, calcium, magnesium, iron, potassium and zinc and a high intake of starchy foods, processed meat and sodium were apparent. However, the available data appeared fragmented because of the different methodologies used in the studies. A more global vision of the main nutritional problems that are present among low-income people in Europe is needed, and the first step to achieve this goal is the use of common criteria to define the risk of poverty. The scoring system described here represents novel criteria for defining at-risk-of-poverty groups not only in the CHANCE-participating countries but also all over Europe.
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Affiliation(s)
- Marina Nikolić
- Institute for Medical Research, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Tadeuša Košćuška 1, Belgrade 11000, Serbia.
| | - Maria Glibetić
- Institute for Medical Research, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Tadeuša Košćuška 1, Belgrade 11000, Serbia.
| | - Mirjana Gurinović
- Institute for Medical Research, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Tadeuša Košćuška 1, Belgrade 11000, Serbia.
| | - Jelena Milešević
- Institute for Medical Research, Centre of Research Excellence in Nutrition and Metabolism, University of Belgrade, Tadeuša Košćuška 1, Belgrade 11000, Serbia.
| | - Santosh Khokhar
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK.
| | - Stefania Chillo
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK.
| | - Jonas Algis Abaravicius
- Faculty of Medicine, Department of Physiology, Biochemistry, Microbiology and Laboratory Medicine, Vilnius University, Vilnius LT-03101, Lithuania.
| | - Alessandra Bordoni
- Department of Agriculture and Food Science and Technology, University of Bologna, Piazza Goidanich 60, Cesena 47023, Italy.
| | - Francesco Capozzi
- Department of Agriculture and Food Science and Technology, University of Bologna, Piazza Goidanich 60, Cesena 47023, Italy.
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25
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Vasiljević A, Bursać B, Djordjevic A, Milutinović DV, Nikolić M, Matić G, Veličković N. Hepatic inflammation induced by high-fructose diet is associated with altered 11βHSD1 expression in the liver of Wistar rats. Eur J Nutr 2014; 53:1393-402. [PMID: 24389792 DOI: 10.1007/s00394-013-0641-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 12/17/2013] [Indexed: 02/06/2023]
Abstract
PURPOSE High fructose consumption provokes metabolic perturbations that result in chronic low-grade inflammation and insulin resistance. Glucocorticoids, potent anti-inflammatory hormones, have important role in pathogenesis of diet-induced metabolic disturbances. The aim of this study was to examine the link between glucocorticoid metabolism and inflammation in the liver of fructose-fed rats. METHODS Fructose-fed male Wistar rats consumed 60% fructose solution for 9 weeks. Glucocorticoid prereceptor metabolism and signaling were analyzed by measuring the level of 11β-hydroxysteroid dehydrogenase type 1 (11βHSD1) and hexose-6-phosphate dehydrogenase expression, as well as via determination of intracellular corticosterone concentration, glucocorticoid receptor subcellular distribution and expression of its target gene, phosphoenolpyruvate carboxykinase. Nuclear factor kappa B (NFκB), tumor necrosis factor alpha (TNFα) and the level of inhibitory phosphorylation of insulin receptor substrate-1 (IRS-1) on Ser(307) were analyzed as markers of hepatic inflammation. The protein and/or mRNA levels of all examined molecules were assessed by Western blot and/or qPCR. RESULTS Fructose-rich diet led to an enhancement of 11βHSD1 protein level in the liver, without affecting intracellular level of corticosterone and downstream glucocorticoid signaling. On the other hand, proinflammatory state was achieved through NFκB activation and increased TNFα expression, while elevated level of inhibitory phosphorylation of IRS-1 was observed as an early hallmark of insulin resistance. CONCLUSION High-fructose diet does not influence hepatic glucocorticoid signaling downstream of the receptor, permitting development of NFκB-driven inflammation. The alteration in 11βHSD1 expression is most likely the consequence of enhanced inflammation, finally leading to disruption of insulin signaling in the rat liver.
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Affiliation(s)
- Ana Vasiljević
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković", University of Belgrade, 142 Despot Stefan Blvd., 11000, Belgrade, Serbia
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26
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Nikolić M, Gardner H, Tucker K. Postnatal neuronal apoptosis in the cerebral cortex: Physiological and pathophysiological mechanisms. Neuroscience 2013; 254:369-78. [DOI: 10.1016/j.neuroscience.2013.09.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 09/14/2013] [Accepted: 09/17/2013] [Indexed: 12/15/2022]
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27
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Matić G, Veličković N, Djordjevic A, Milutinović DV, Elaković I, Nestorov J, Bursać B, Vasiljević A, Nikolić M, Dundjerski J. Glucocorticoid signaling in the liver and adipose tissue of male and female fructose-fed rats. BMC Proc 2012. [PMCID: PMC3374235 DOI: 10.1186/1753-6561-6-s3-p35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Gordana Matić
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Nataša Veličković
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Ana Djordjevic
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | | | - Ivana Elaković
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Jelena Nestorov
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Biljana Bursać
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Ana Vasiljević
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Marina Nikolić
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
| | - Jadranka Dundjerski
- Institute for Biological Research “Siniša Stanković”, University of Belgrade, 11060 Belgrade, Serbia
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28
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Bajek S, Nikolić M, Soić-Vranić T, Bajek G, Cvijanović O, Starcević-Klasan G. Influence of hyperbaric oxygen treatment on myogenic transcriptional factors of denervated rat muscle. Coll Antropol 2012; 36:167-172. [PMID: 22816216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The aim of this study was to determine whether hyperbaric oxygen (HBo2) treatment influences the expression of transcriptional myogenic factors in denervated rat's extensor digitorum longus muscle. Thus, expressing regulatory myogenic factors MyoD and myogenin were analyzed in denervated muscles (up to 30 days). Second group of denervated rats were afterwards treated with HBO2. Normal, innervated muscles were used as controls. Western blot analysis showed a significant upregulation of MyoD and myogenin proteins in denervated muscle during this period. Denervated muscles of rats exposed to HBO2 treatment had also significant upregulation of both transcriptional factors but the treatment had not altered their expression. The immunohistochemical analysis showed MyoD and myogenin protein expression through this period in the denervated, untreated muscles and in denervated muscles of rats treated with HBO2, too. One month denervation caused a reduction in muscle fiber cross-sectional area. The treatment with HBO2 had not reduced the degree of atrophy. The protocol of hyperbaric oxygenation (HBO) applied in this study had no beneficial effect either on transcriptional myogenic factors or on atrophy of denervated rat muscle.
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Affiliation(s)
- Snjezana Bajek
- University of Rijeka, School of Medicine, Department of Anatomy, Rijeka, Croatia.
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29
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Bajek S, Nikolić M, Soić-Vranić T, Arbanas J, Bajek G. Effect of hyperbaric oxygen treatment on myogenic transcriptional factors in regenerating rat masseter muscle. Coll Antropol 2011; 35 Suppl 2:91-95. [PMID: 22220412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hyperbaric oxygen (HBO) treatment was shown to be beneficial as an additional treatment for ischemic muscles in crush injuries and ischemia-reperfusion injuries. The purpose of this study was to assess the influence of hyperbaric oxygen treatment on transcriptional myogenic factors during muscle regeneration. Those factors (MyoD, myf5, myogenin, mrf4) are essential for determination and differentiation of skeletal muscle tissue and together with several other factors control gene expression during myogenesis. The process of regeneration in rat masseter muscle was provoked with injection of local anesthetic bupivacaine hydrochloride. Following injection, the animals were treated once daily in hyperbaric chamber from one to ten days and than sacrificed. Immunohistochemical and Western blot analysis of frozen masseter muscle samples showed a transient upregulation of myoD and myogenin transcriptional factors in the muscles of hyperbaric oxygen treated rats and of rats that have not been treated after the injury. HBO treatment had no effect on the expression of MyoD and myogenin transcriptional factors in the regenerating rat masseter muscle.
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Affiliation(s)
- Snjezana Bajek
- Department of Anatomy, School of Medicine, University of Rijeka, Rijeka, Croatia.
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30
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Petrović-Oggiano G, Damjanov V, Vučić V, Gurinović M, Popović T, Debeljak Martačić J, Nikolić M, Avramović N, Glibetić M. NUTRITION BASED ON DIFFERENT ORIGIN OF FATS AS A RISK FACTOR FOR CEREBROVASCULAR INSULT. amm 2011. [DOI: 10.5633/amm.2011.0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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31
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Petrović-Oggiano G, Damjanov V, Vučić V, Gurinović M, Popović T, Debeljak Martačić J, Nikolić M, Avramović N, Glibetić M. ISHRANA BAZIRANA NA RAZLIČITIM VRSTAMA MASTI KAO FAKTOR RIZIKA ZA CEREBROVASKULARNI INSULT. amm 2011. [DOI: 10.5633/amm.2011.0201s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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32
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Cvijanović O, Lekić A, Nikolić M, Arbanas J, Bobinac D. Bone quality assessment in individuals of different age, gender and body constitution. Coll Antropol 2010; 34 Suppl 2:161-168. [PMID: 21302716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The concept of bone quality describes the sets of the characteristics of the osseous tissue that influence bone strength. The aim was to explore the influence of anthropometric parameters and age on the parameters of the bone architecture and bone mineral properties in the lumbar vertebral bone of men and women. Vertebral bone samples underwent bone histomorphometry, bone densitometry and atomic absorption spectrometry. Men have greater values of the bone volume and thicker bone trabeculae in relation to women, which indicates that vertebral bone architecture is better preserved in men than in women. Age is the best predictor of changes that affect bone architecture and bone mineral properties. Bone mineral density value and calcium concentration are both negatively predicted by age, but positively predicted by body mass index. Such result supports the opinion that low body mass index is associated with conditions of bone deficit such are osteopenia and osteoporosis.
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Affiliation(s)
- Olga Cvijanović
- Department of Anatomy, School of Medicine, University of Rijeka, Croatia.
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33
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Arbanas J, Klasan GS, Nikolić M, Cvijanović O, Malnar D. Immunohistochemical analysis of the human psoas major muscle with regards to the body side and aging. Coll Antropol 2010; 34 Suppl 2:169-173. [PMID: 21302717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The aim of our study was to explore the age related changes of the fibre type composition of the human psoas major muscle. Moreover, we wanted to compare the fibre type composition of the left and right muscle. Muscle samples were collected from 15 young and 15 old males. Type I, IIA and IIX muscle fibres were typed using myosin heavy chain identification. The serial transverse sections were analysed using a light microscope. Results of our study showed that the age-related atrophy affected all three fibre types. Type IIA fibres were affected most profoundly while type I fibres were affected most weakly. The percentage of the different fibre types did not change during aging. There were no differences in the fibre type composition between the left and right muscle. Human psoas major muscle undergoes normal aging changes with the atrophy of all three fibre types, whereas atrophy most profoundly affects type IIA fibres. No differences in the fibre type composition between the left and right muscle point to the equal engagement of both legs in normal everyday activities of human.
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Affiliation(s)
- Juraj Arbanas
- Department of Anatomy, School of Medicine, University of Rijeka, Croatia.
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34
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Nikolić M, Vranid TS, Arbanas J, Cvijanović O, Bajek S. Muscle loss in elderly. Coll Antropol 2010; 34 Suppl 2:105-108. [PMID: 21305730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Aging is associated with loss of skeletal muscle mass, strength and endurance. The aim of this study was to determinate age related changes in human muscles with different function and location in the body (vastus lateralis muscle and intercostal internus muscle). Our results suggest that age related muscle atrophy affect both human skeletal muscles. Also, the results showed the increase in percentage of muscle fibers with high oxidative activity during aging.
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Affiliation(s)
- Marina Nikolić
- Department of Anatomy, School of Medicine, University of Rijeka, Croatia.
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35
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Nikolić M, Tolinacki M, Fira D, Golić N, Topisirović L. Variation in specificity of the PrtP extracellular proteinases in Lactococcus lactis and Lactobacillus paracasei subsp. paracasei. Folia Microbiol (Praha) 2009; 54:188-94. [PMID: 19649733 DOI: 10.1007/s12223-009-0029-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2008] [Revised: 01/12/2009] [Indexed: 10/20/2022]
Abstract
Comparison of cell-wall-bound extracellular proteinases (CEPs) from Lactobacillus paracasei (LBP) ssp. paracasei natural isolates BGHN14, BGAR75 and BGAR76 with Lactococcus lactis (LCL) ssp. cremoris Wg2, in their action on alpha(S1)-, beta- and kappa-casein was done. The CEPs of LBP strains were able to degrade alpha(S1)- and beta-caseins and their caseinolytic specificity depended on the type of buffer used. These CEPs, compared with LCL Wg2, differ in four amino acid residues in small segments predicted to be involved in substrate binding. The most striking features of this comparison are the presence of Ala instead of Ser(329) and the presence of Thr instead of Asn(256) and Ala(299), in the subtilisin-like region of the CEP in LBP natural isolates. Additional conservative amino acid substitution Leu to Ile(364) was found.
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Affiliation(s)
- M Nikolić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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36
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Nikolić L, Djurić Z, Jovanović M, Živanović L, Nikolić M, Petrović D. In Vitro Evaluation of Commercial Aspirin Tablets Marketed in Yugoslavia. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049409047215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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37
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Starcević-Klasan G, Azman J, Picard A, Jurisić-Erzen D, Nikolić M, Jerković R. Reg IV protein is expressed in normal rat tissue. Coll Antropol 2008; 32 Suppl 2:89-93. [PMID: 19138013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The Reg IV gene has been documented in the colon, small intestine, stomach and pancreas of the human. Expression of the Reg IV in different cell types has been associated with regeneration, cell growth and cell survival, cell adhesion and resistance to apoptosis. It is unknown whether the Reg IV protein is present in the normal rat tissue. The aim of this study was to reveal the expression of the Reg IV protein in the rat spleen and colon. Western blot analysis using antibody specific for Reg IV protein were performed on rat spleen and colon extracts. Low level of Reg IV expression was found in all examined colon samples. The expression of Reg IV protein in spleen tissue was significantly higher than in the colon. Reg IV protein was immunohistochemically stained in a few epithelial cells in the basal portion of colon crypts and in a large spleen cells which were scattered in the red pulp. Our results demonstrate for the first time the presence of the Reg IV protein expression in the healthy spleen and colon tissue of the rat. Other members of the Reg family, Reg I and Reg III proteins have been shown to act as a growth factors in gastrointestinal tract, but without further experiments we can only assume the potential role of the Reg IV protein in spleen and colon cell growth.
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Popadić S, Nikolić M, Gajić-Veljić M, Bonaci-Nikolić B. Rothmund-Thomson syndrome. The first case with plantar keratoderma and the second with coeliac disease. Acta Dermatovenerol Alp Pannonica Adriat 2006; 15:90-3. [PMID: 16998609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We report two unusual patients with Rothmund-Thomson syndrome (RTS), a rare genodermatosis. The first patient is a 5-year-old girl with congenital poikiloderma, photosensitivity, plantar punctate keratoderma, stunted growth and severe mental retardation. Plantar keratoderma associated with RTS has been reported only once. The second patient is a 21-year-old female presenting with rounded "moon" face, trunk obesity, coeliac disease, short stature and mild mental retardation. This is the first case of RTS associated with coeliac disease.
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Affiliation(s)
- S Popadić
- Department of Dermatology, School of Medicine, Pasterova 2, 11000 Belgrade, Serbia and Montenegro
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Soić-Vranić T, Bobinac D, Bajek S, Jerković R, Malnar-Dragojević D, Nikolić M. Effect of salbutamol on innervated and denervated rat soleus muscle. Braz J Med Biol Res 2005; 38:1799-805. [PMID: 16302094 DOI: 10.1590/s0100-879x2005001200008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The objective of the present investigation was to perform a 14-day time-course study of treatment with salbutamol, a beta2 adrenoceptor agonist, on rat soleus muscle in order to assess fiber type selectivity in the hypertrophic response and fiber type composition. Male Wistar rats were divided into four groups: control (N = 10), treated with salbutamol (N = 30), denervated (N = 30), and treated with salbutamol after denervation (N = 30). Salbutamol was injected intraperitoneally in the rats of the 2nd and 4th groups at a concentration of 0.3 mg/kg twice a day for 2 weeks. The muscles were denervated using the crush method with pean. The animals were sacrificed 3, 6, 9, 12, and 14 days after treatment. Frozen cross-sections of soleus muscle were stained for myosin ATPase, pH 9.4. Cross-sectional area and percent of muscle fibers were analyzed morphometrically by computerized image analysis. Treatment with salbutamol induced hypertrophy of all fiber types and a higher percentage of type II fibers (21%) in the healthy rat soleus muscle. Denervation caused marked atrophy of all fibers and conversion from type I to type II muscle fibers. Denervated muscles treated with salbutamol showed a significantly larger cross-sectional area of type I muscle fibers, 28.2% compared to the denervated untreated muscle. Moreover, the number of type I fibers was increased. These results indicate that administration of salbutamol is able to induce changes in cross-sectional area and fiber type distribution in the early phase of treatment. Since denervation-induced atrophy and conversion from type I to type II fibers were improved by salbutamol treatment we propose that salbutamol, like other beta2 adrenoceptor agonists, may have a therapeutic potential in improving the condition of skeletal muscle after denervation.
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Affiliation(s)
- T Soić-Vranić
- Department of Anatomy, Medical Faculty, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia.
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Nikolić M, Bajek S, Bobinac D, Vranić TS, Jerković R. Aging of human skeletal muscles. Coll Antropol 2005; 29:67-70. [PMID: 16117301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Normal aging in humans is associated with progressive decrease in skeletal muscle mass and strength (sarcopenia) which contributes to frailty and falls. The age associated changes in body composition result from lower levels of anabolic hormones, oxidative damage, neuromuscular alterations and a general decrease in muscle protein turnover. In this review we discuss the potential mechanisms and physical activity as prevention and treatment of sarcopenia.
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Affiliation(s)
- Marina Nikolić
- Department of Anatomy, Medical Faculty, University of Rijeka, Rijeka, Croatia.
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41
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Nikolić M, Malnar-Dragojević D, Bobinac D, Bajek S, Jerković R, Soić-Vranić T. Age-related skeletal muscle atrophy in humans: an immunohistochemical and morphometric study. Coll Antropol 2001; 25:545-53. [PMID: 11811285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The aim of this study was to determine age-related changes in three human muscles with different function and location in the body. The cross sectional area and the percentage of fibers type I, type IIA and type IIX were studied in vastus lateralis, deltoideus and external intercostal muscle. Muscle samples were obtained from 30 male subjects, aged 20-80 years. Fiber types were defined immunohistochemically, using monoclonal antibodies specific for type I, type IIA and type IIX fibers. Cross sectional area of muscle fibers was analyzed morphometrically by computerized image analysis. All muscle fiber types (I, IIA, IIX) showed the reduction in the fiber size in all three examined muscles. In all muscles the proportion of type I and type IIA was changed, but not in type IIX. With increasing age results showed the increase in proportion of type I, while proportion of type IIA fibers decreased, with vastus lateralis muscle being the most affected. These results suggest that age-related muscle atrophy is not a general phenomenon, and does not affect all muscles equally.
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Affiliation(s)
- M Nikolić
- Department of Anatomy, School of Medicine, University of Rijeka, Croatia
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42
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Backović D, Marinković J, Jorga J, Pavlica M, Maksimović Z, Nikolić M. Environmental factors, health-related habits, and serum selenium levels in cancer patients and healthy controls. Biol Trace Elem Res 1999; 67:55-62. [PMID: 10065598 DOI: 10.1007/bf02784275] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Previous studies conducted in Yugoslavia indicated that the concentration of selenium in soil, food items, and serum of the population is very low. The aim of the study was to investigate the possible relationship among environmental, health-related habits, nutrition, and selenium serum levels in cancer patients and the healthy population. The case-control study included a group of cancer patients and a matched group of healthy controls: 57 cancer patients and 41 healthy controls living in Stari Grad (an urban area of Belgrade), as well as 17 cancer patients and 13 healthy controls living in Barajevo (a rural community in the vicinity of Belgrade). The healthy controls were matched to cancer patients in sex and age; they were not blood related. The selenium serum levels were measured by atomic absorption spectrophotometry. Health-related habits and relevant dietary factors ("food frequency" method) that may influence the selenium serum levels were assessed by questionnaires. The differences in average values of selenium serum levels between the cancer patients and healthy controls were not significantly different, but both were below the lowest recorded in referential studies. A significant difference between the values obtained from urban and rural subgroups was noted. The most important factors that influenced the level of selenium included the residence place in the region with selenium deficiency (Barajevo), age, associated chronic diseases, and some dietary factors potentially related to the intake of selenium. The results obtained in this investigation pointed out that use of selenium supplementation in this area should be seriously considered.
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Affiliation(s)
- D Backović
- Institute of Hygiene and Medical Ecology, Belgrade, Yugoslavia
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Munjiza M, Popović-Deušić S, Nikolić M, Ljubomirović N. Pharmacotherapy of depression and chronic pain. Eur Psychiatry 1998. [DOI: 10.1016/s0924-9338(99)80465-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Niketić V, Tomasević N, Nikolić M. Covalent glycoinositolphospholipid binding to hemoglobin: a new post-translational modification of Hb occurring in hyperinsulinism with concomitant hypoglycemia. Biochem Biophys Res Commun 1997; 239:435-8. [PMID: 9344847 DOI: 10.1006/bbrc.1997.7362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this work a novel hitherto unrecognised minor hemoglobin (Hb) fraction, which we detected previously in hemolysates of erythrocytes exposed to a high concentration of insulin under hypoglycemic conditions, both in vivo and in vitro, is analysed. The modification of Hb in HbA1x was shown to be due the addition of glycoinositolphospholipid (GPI) to the C termini of both beta polypeptide chains. A structurally related minor Hb fraction was identified in erythrocytes exposed in vitro to insulin-mimetic agent, trypsin. To our knowledge this is the first demonstration of such a modification of Hb, as well as the first demonstration of post-translational GPI binding to proteins in response to insulin. The mechanism proposed for GPI-Hb formation is briefly described.
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Affiliation(s)
- V Niketić
- Department of Chemistry, University of Belgrade, Yugoslavia.
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Joksić G, Nikolić M, Spasojević-Tisma V. Radiosensitivity of different aged human lymphocytes following electron irradiation in vitro. Neoplasma 1997; 44:117-21. [PMID: 9201291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cytochalasin B-blocking micronucleus test and chromosomal aberration analysis were used in this study to estimate the yield of individual variability in radiation response of different aged human lymphocytes. Both analyses were performed in three groups of adults, aged 18-65 years, on two sampling times, following irradiation by therapeutical dose of 2 Gy e- in vitro. No statistically significant difference in the induced yield of exchange aberrations between individuals under consideration was found. The yield of total aberration data showed greater variability and was statistically significant in the oldest group against two other adult groups. Regarding to fixation times no statistically significant differences in the induced yield of chromosomal aberrations (exchanges as well as total aberrations) were observed. The study has shown a slight increase in spontaneously occurring micronuclei with age. Almost equal mean number of radiation induced micronuclei was observed in the groups of adults aged 18-20 and 45-55 years. The highest mean number was observed in the oldest group. Evident variation in number of radiation induced micronuclei among individuals from the same age group was observed. The results of micronuclei assay for all individuals under consideration show statistically significant difference in the yield of radiation-induced micronuclei regarding the second fixation time. This study has shown that cytochalasin-B blocking micronucleus test is more sensitive assay than chromosomal aberration analysis for the estimation of individual radiosensitivity.
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Affiliation(s)
- G Joksić
- Vinca, Institute of Nuclear Sciences, Medical Protection Center, Beograd, Yugoslavia
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Marinković O, Nikolić M, Timotijević I. Genetic-epidemiology of schizophrenia and affective disorders: A survey on a representative sample. Eur Psychiatry 1996. [DOI: 10.1016/0924-9338(96)89369-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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47
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Domijan E, Nikolić M, Balint B, Karan Z, Milosavljević I. [Identification of bodies of soldiers carbonized in an armored transport vehicle]. VOJNOSANIT PREGL 1992; 49:498-501. [PMID: 1481467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The authors have presented the process and possibilities of identification of the carbonized bodies of the crew of the exploded military armoured transporter. In identification of the invaluable importance have been description, autopsy findings, questionnaires and their comparison as well as ways of identification of the carbonized bodies.
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Affiliation(s)
- E Domijan
- Vojnomedicinska akademija, Institut za patologiju i sudsku medicinu
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Nikolić M, Petrović D. [Determination of acetylsalicylic and salicylic acid in tablets using high-performance liquid chromatography and a diode array detector]. VOJNOSANIT PREGL 1991; 48:325-30. [PMID: 1962469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A fast and sensitive method of high-performance liquid chromatography (HPLC) for determination of acetylsalicylic acid (ASA) and products of salicylic acid (SA) hydrolysis in tablets has been elaborated. Extraction was done with the mixture of methanol: formic acid (98:2 v/v) and separation of the components was achieved by using the colon of Ultropac Lichrosorb RP-18, 10 um, 4 cm x 250 mm and diode array detector. The mobile phase of methanol:water: :mol/1 H3PO4 (60:35:5) v/v, pP = 2.6 and safe flow of 1 ml/min were used. Follow up of chromatographic separation of ASA, SA and internal standard beta-naphtole (ITS) was performed at the wave length of 290 microns. The threshold of ASA was 0.5 mg/ml and of SA 0.0025 mg/ml.
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Affiliation(s)
- M Nikolić
- Vojnomedicinska akademija, Institut za farmaciju, Zavod za preventivnu medicinu
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Belojević G, Nikolić M, Kecman G. Failure of industrial noise to change the patterns of vanilmandelic acid and 17-hydroxycorticosteroids in the urine of the female weavers with hearing loss. Int Arch Occup Environ Health 1990; 62:441-4. [PMID: 2246061 DOI: 10.1007/bf00379060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The field experiments were undertaken on two consecutive working days on seven female weavers with noise-induced hearing loss (NIHL), and a control group of seven sewers with normal hearing. The first day, urine was collected during the shift (06:00-14:00 h) and at home (17:00-05:00 h) for measurements of 17-hydroxycorticosteroids (17-OH) levels. The following day, the procedure was repeated, but for vanilmandelic acid (VMA) analysis. No significant changes in the hormone levels were found, both concerning the different occupational noise exposure and the periods of a working day.
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Affiliation(s)
- G Belojević
- Institute of Hygiene and Medical Ecology, Faculty of Medicine, University of Belgrade, Yugoslavia
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Kostić VS, Covicković-Sternić N, Beslać-Bumbasirević L, Ocić G, Pavlović D, Nikolić M. Dexamethasone suppression test in patients with Parkinson's disease. Mov Disord 1990; 5:23-6. [PMID: 2296253 DOI: 10.1002/mds.870050106] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The Dexamethasone Suppression Test (DST), supposed to effectively distinguish between endogenous and nonendogenous depression, was performed in a group of 34 patients with Parkinson's disease. Abnormal DST results were observed in 50% of the patients. The patients were clinically divided into subgroups of depressed and nondepressed parkinsonians. Abnormal DST results were significantly more frequent in depressed (75%) than in nondepressed parkinsonians (27.7%).
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Affiliation(s)
- V S Kostić
- Clinic for Neurology CCMF, Belgrade, Yugoslavia
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