1
|
Djordjević I, Djordjević S, Kosać A, Vučinić D, Ivanović Radović N, Ždraljević M, Mijajlović M. Transcranial brain parenchyma sonography in patients with juvenile myoclonic epilepsy. Acta Neurol Belg 2024:10.1007/s13760-024-02561-6. [PMID: 38644442 DOI: 10.1007/s13760-024-02561-6] [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: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 04/23/2024]
Abstract
INTRODUCTION There are rising evidences that subcortical structures, including the basal ganglia, are affected in patients with epilepsy. These structures are thought to influence the modulation and phenotypic expression of epileptic seizures. Our study aimed to evaluate the presence of structural abnormalities in subcortical structures in patients with juvenile myoclonic epilepsy (JME). METHODS This cross-sectional study included 51 patients who were diagnosed with JME and who were monitored on an outpatient basis at the Clinic for Neurology and Psychiatry for Children and Youth in Belgrade from January 1985 to October 2017. All patients underwent transcranial parenchymal sonography (TCS) from October 2015 to October 2017. Relation of clinical parameters (seizure control andcognitive functioning,) with TCS results was assessed. RESULTS Hyperechogenicity of the substantia nigra (SN) was detected in 37.2% of JME subjects and it was significantly more common in patients with JME than in the control group. The marked echogenicity of the red nucleus (RN) was detected in 17.6% of cases, while 11.8% of subjects had hyperechogenic RN. The presence of hyperechogenic RN (both right and left) was significantly more frequent in the group of patients with JME compared to the control group. The third ventricle diameter was larger in patients with JME than in controls. CONCLUSION Structural changes of certain subcortical structures, primarily SN and RN, detected in JME patients indicate additional non-lesional abnormalities of the basal ganglia and midbrain structures in these patients.
Collapse
Affiliation(s)
- Ivana Djordjević
- Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia
| | - Stefan Djordjević
- University Children's Hospital, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ana Kosać
- Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragana Vučinić
- Clinic for Neurology and Psychiatry for Children and Youth, Belgrade, Serbia
| | - Nelica Ivanović Radović
- Institute for Children's Diseases, Clinical Center of Montenegro, Podgorica, Montenegro
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
| | - Mirjana Ždraljević
- University Clinical Center of Serbia, Neurology Clinic, 6, Dr Subotica Street, 11000, Belgrade, Serbia
| | - Milija Mijajlović
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
- University Clinical Center of Serbia, Neurology Clinic, 6, Dr Subotica Street, 11000, Belgrade, Serbia.
| |
Collapse
|
2
|
Grubišić S, Dahmani R, Djordjević I, Sentić M, Hochlaf M. Selective adsorption of sulphur dioxide and hydrogen sulphide by metal-organic frameworks. Phys Chem Chem Phys 2023; 25:954-965. [PMID: 36477115 DOI: 10.1039/d2cp04295a] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The removal of highly toxic gasses such as SO2 and H2S is important in various industrial and environmental applications. Metal organic frameworks (MOFs) are promising candidates for the capture of toxic gases owing to their favorable properties such as high selectivity, moisture stability, thermostability, acid gas resistance, high sorption capacity, and low-cost regenerability. In this study, we perform first principles density functional theory (DFT) and grand-canonical Monte Carlo (GCMC) simulations to investigate the capture of highly toxic gases, SO2 and H2S, by the recently designed ZTF and MAF-66 MOFs. Our results indicate that ZTF and MAF-66 show good adsorption performances for SO2 and H2S capture. The nature of the interactions between H2S or SO2 and the pore surface cavities was examined at the microscopic level. SO2 is adsorbed on the pore surface through two types of hydrogen bonds, either between O of SO2 with the closest H of the triazole 5-membred ring or between O of SO2 with the hydrogen of the amino group. For H2S inside the pores, the principal interactions between H2S and surface pores are due to a relatively strong hydrogen bonds established between the nitrogens of the organic part of MOFs and H2S. Also, we found that these interactions depend on the orientation of SO2/H2S inside the pores. Moreover, we have studied the influence of the presence of water and CO2 on H2S and SO2 capture by the ZTF MOF. The present GCMC simulations reveal that the addition of H2O molecules at low pressure leads to an enhancement of the H2S adsorption, in agreement with experimental findings. However, the presence of water molecules decreases the adsorption of SO2 irrespective of the pressure used. Besides, SO2 adsorption is increased in the presence of a small number of CO2 molecules, whereas the presence of carbon dioxide in ZTF pores has an unfavorable effect on the capture of H2S.
Collapse
Affiliation(s)
- S Grubišić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of Republic of Serbia, Njegoševa 12, Belgrade, 11000, Serbia.
| | - R Dahmani
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes 77454, Champs sur Marne, France. .,University of Tunis El Manar, Department of Chemistry, Laboratory of Characterizations, Applications and Modeling of Materials (LCAMM), LR18ES08, Tunis, Tunisia
| | - I Djordjević
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of Republic of Serbia, Njegoševa 12, Belgrade, 11000, Serbia.
| | - M Sentić
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of Republic of Serbia, Njegoševa 12, Belgrade, 11000, Serbia.
| | - M Hochlaf
- Université Gustave Eiffel, COSYS/IMSE, 5 Bd Descartes 77454, Champs sur Marne, France.
| |
Collapse
|
3
|
Petrović AR, Stokanović D, Stojnev S, Floranović MP, Krstić M, Djordjević I, Skakić A, Veličković LJ. The Association between NOTCH3 expression and the clinical outcome in the urothelial bladder cancer patients. Bosn J Basic Med Sci 2022; 22:523-530. [PMID: 35073251 PMCID: PMC9392971 DOI: 10.17305/bjbms.2021.6767] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 01/13/2022] [Indexed: 12/02/2022] Open
Abstract
Disrupted NOTCH activity is a driving event in urothelial bladder cancer (UBC). After activation by hypoxia, the NOTCH3 receptor participates in tumor cell proliferation, acquisition of the epithelial-mesenchymal transition phenotype, and angiogenesis. The aim was to analyze the association of NOTCH3 expression with histopathological and clinical parameters and to determine its predictive impact on the clinical outcome in UBC patients. The present research included 614 UBC samples incorporated in paraffin tissue microarrays, evaluated by immunohistochemistry for NOTCH3 expression. The accrual period was 4 years, while the follow-up period was 2 years. The membranous expression was semi-quantified (0-3), and the mean degree was 1.81 ± 0.94. Criteria for semi-quantification, the NOTCH3 expression, were the intensity of the staining and the percentage of positive cells. The samples with negative (0) and weak (1) NOTCH3 immunohistochemical (IHC) score were considered negative, while the samples that showed moderate (2) and strong (3) expression were considered positive. Higher degree of positivity was associated with higher risk of cancer-specific mortality (p < 0.001). Independent predictors for cancer-specific mortality were NOTCH3 expression and high stage (p < 0.001). NOTCH3 expression was not a statistically significant predictor of recurrence-free survival (p = 0.816). This study indicated that NOTCH3 is a predictor of poor outcome, suggesting that the NOTCH3 could be potentially reliable IHC marker for selecting the UBC patients that would require more intensive follow-up, especially if they diagnosed in higher stage, with divergent differentiation in pathological report, and without recurrences which would lead them to more frequent medical assessments.
Collapse
Affiliation(s)
- Ana Ristić Petrović
- Center for Pathology, University Clinical Center Niš, Niš, Serbia
- Department of Pathology, Faculty of Medicine, University of Niš, Niš, Serbia
- Corresponding author: Ana Ristić Petrović, Center for Pathology, University Clinical Center Nis, Blvd. Dr Zoran Djindjic 48, Niš - 18000, Serbia; Department of Pathology, Faculty of Medicine, University of Niš, Blvd. Dr Zoran Djindjic 81, Niš - 18000, Serbia. E-mail:
| | - Dragana Stokanović
- Department of Pharmacology, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Slavica Stojnev
- Center for Pathology, University Clinical Center Niš, Niš, Serbia
- Department of Pathology, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Milena Potić Floranović
- Scientific Research Center for Biomedicine, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Miljan Krstić
- Center for Pathology, University Clinical Center Niš, Niš, Serbia
- Department of Pathology, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Ivana Djordjević
- Center for Pathology, University Clinical Center Niš, Niš, Serbia
| | - Aleksandar Skakić
- Clinic for Urology, University Clinical Center Niš, Niš, Serbia
- Department of Surgery, Faculty of Medicine, University of Niš, Niš, Serbia
| | - Ljubinka Janković Veličković
- Center for Pathology, University Clinical Center Niš, Niš, Serbia
- Department of Pathology, Faculty of Medicine, University of Niš, Niš, Serbia
| |
Collapse
|
4
|
Dahmani R, Grubišić S, Djordjević I, Ben Yaghlane S, Boughdiri S, Chambaud G, Hochlaf M. In silico design of a new Zn-triazole based metal-organic framework for CO 2 and H 2O adsorption. J Chem Phys 2021; 154:024303. [PMID: 33445914 DOI: 10.1063/5.0037594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
In search for future good adsorbents for CO2 capture, a nitrogen-rich triazole-type Metal-Organic Framework (MOF) is proposed based on the rational design and theoretical molecular simulations. The structure of the proposed MOF, named Zinc Triazolate based Framework (ZTF), is obtained by replacing the amine-organic linker of MAF-66 by a triazole, and its structural parameters are deduced. We used grand-canonical Monte Carlo (GCMC) simulations based on generic classical force fields to correctly predict the adsorption isotherms of CO2 and H2O. For water adsorption in MAF-66 and ZTF, simulations revealed that the strong hydrogen bonding interactions of water with the N atoms of triazole rings of the frameworks are the main driving forces for the high adsorption uptake of water. We also show that the proposed ZTF porous material exhibits exceptional high CO2 uptake capacity at low pressure, better than MAF-66. Moreover, the nature of the interactions between CO2 and the MAF-66 and ZTF surface cavities was examined at the microscopic level. Computations show that the interactions occur at two different sites, consisting of Lewis acid-Lewis base interactions and hydrogen bonding, together with obvious electrostatic interactions. In addition, we investigated the influence of the presence of H2O molecules on the CO2 adsorption on the ZTF MOF. GCMC simulations reveal that the addition of H2O molecules leads to an enhancement of the CO2 adsorption at very low pressures but a reduction of this CO2 adsorption at higher pressures.
Collapse
Affiliation(s)
- R Dahmani
- Université Gustave Eiffel, COSYS/LISIS, 5 Bd Descartes, 77454 Champs sur Marne, France
| | - S Grubišić
- University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Republic of Serbia
| | - I Djordjević
- University of Belgrade - Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Republic of Serbia
| | - S Ben Yaghlane
- Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire de Spectroscopie Atomique, Moléculaire et Applications - LSAMA, 2092 Tunis, Tunisia
| | - S Boughdiri
- Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire de Caractérisations, Applications et Modélisation des Matériaux - LR18ES08, Tunis, Tunisia
| | - G Chambaud
- Université Gustave Eiffel, COSYS/LISIS, 5 Bd Descartes, 77454 Champs sur Marne, France
| | - M Hochlaf
- Université Gustave Eiffel, COSYS/LISIS, 5 Bd Descartes, 77454 Champs sur Marne, France
| |
Collapse
|
5
|
Senćanski M, Djordjević I, Grubišić S. Assessing the dispersive and electrostatic components of the selenium–aromatic interaction energy by DFT. J Mol Model 2017; 23:162. [DOI: 10.1007/s00894-017-3330-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/27/2017] [Indexed: 11/28/2022]
|
6
|
Djordjević I, Niketić S. Atomic partial charges for mixed chloroammine chromium(III) complexes fitted to the molecular electrostatic potential. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.10.013] [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: 10/27/2022]
|
7
|
Choi JH, Niketić SR, Djordjević I, Clegg W, Harrington RW. Crystal structure and conformational analysis of s-cis-(acetylacetonato)(ethylenediamine-N,N′-diacetato)-chromium(III). J Mol Model 2011; 18:2135-46. [DOI: 10.1007/s00894-011-1185-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 07/11/2011] [Indexed: 10/17/2022]
|
8
|
Tadić VM, Aljančić IS, Vajs VE, Milosavljević SM, Djoković D, Djordjević I. Intraspecific Variation ofTanacetum larvatumEssential Oil. Journal of Essential Oil Research 2010. [DOI: 10.1080/10412905.2010.9700355] [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] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
9
|
Karanikolić A, Djordjević N, Filipovicz S, Pesić M, Milić D, Budjevac D, Djordjević I. Axillary recurrence after modified radical mastectomy. ACTA ACUST UNITED AC 2006; 52:39-43. [PMID: 16812992 DOI: 10.2298/aci0503039k] [Citation(s) in RCA: 1] [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: 11/27/2022]
Abstract
Optimal management for axillary recurrence is poorly understood. The aim of this study was to evaluate the risk factors for overall survival in the patients with axillary recurrence. Data of 1098 patients were collected from breast cancer registers from Clinic for Oncology Nis between 1990-1995. All patients underwent modified radical mastectomy. Axillary recurence was diganosed in 43 (3.92%) patients. Most patients were presented with a localized, palpable axillary mass 30 (69.77%). Cox multivariate analysis of prognostic factors for breast cancer-specific survival showed that node status HR 4.69 (1.50 to 14.72), tumor size HR 3.18 (0.90 to 11.26) and axillary radiotherapy HR 1.99 (0.69 to 5.75) had statistically significant effect on breast cancer mortality. Log-rank (54.21 p < 0.001) analysis showed significant difference for overall survival among women with a axillary recurrence based on different cancer stages. Tumor size and node status were the most important prognostic factors in women with axillary recurrence.
Collapse
Affiliation(s)
- A Karanikolić
- Surgical Clinic, Clinical Centre of Nis, Serbia and Montenegro
| | | | | | | | | | | | | |
Collapse
|
10
|
Affiliation(s)
- V J Djurić
- Immunology Research Center, Belgrade, Yugoslavia
| | | | | | | | | |
Collapse
|