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Ertekin Ö, Kaban G, Kaya M. Genotypic diversity and antagonistic activities of enterococci isolated from pastırma. J Food Sci Technol 2024; 61:983-989. [PMID: 38487290 PMCID: PMC10933240 DOI: 10.1007/s13197-023-05895-w] [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] [Subscribe] [Scholar Register] [Revised: 10/30/2022] [Accepted: 11/06/2023] [Indexed: 03/17/2024]
Abstract
The biodiversity of enterococci from pastırma (a traditional Turkish dry-cured meat product) by genotypic identification and the antagonistic activities of strains were investigated. Pastırma samples taken from 20 different small-scale factories were subjected to microbiological and physicochemical analysis. A hundred enterococci isolates were identified by 16S rRNA gene sequence analysis. To determine antagonistic activity of strains, Listeria monocytogenes and Staphylococcus aureus were used. The lactic acid bacteria and Micrococcus/Staphylococcus counts were ≥ 6 log cfu/g in 55% of the samples and 75% of the samples, respectively. Enterobacteriaceae was generally below the detectable level (< 2 log cfu/g). The enterococci count was higher than 6 log cfu/g in 30-35% of the samples, depending on the medium used. The enterococci isolates (100 isolates) were identified as E. faecium (80 strains), E. faecalis (19 strains) and E. hirae (1 strain) in genotypic identification. The nine E. faecium strains showed antagonistic activity against L. monocytogenes in the well diffusion test. In contrast, in the same antagonistic activity test, all of the strains had no antagonistic activity against S. aureus. Further studies could be planned to characterize E. faecium strains that show antagonistic activity against L. monocytogenes.
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Affiliation(s)
- Özlem Ertekin
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Munzur University, 62000 Tunceli, Turkey
| | - Güzin Kaban
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, 25240 Erzurum, Turkey
| | - Mükerrem Kaya
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, 25240 Erzurum, Turkey
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2
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Parveen M, Karaosmanoglu B, Sucularli C, Uner A, Taskiran EZ, Esendagli G. Acquired immune resistance is associated with interferon signature and modulation of KLF6/c-MYB transcription factors in myeloid leukemia. Eur J Immunol 2024; 54:e2350717. [PMID: 38462943 DOI: 10.1002/eji.202350717] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 03/12/2024]
Abstract
Resistance to immunity is associated with the selection of cancer cells with superior capacities to survive inflammatory reactions. Here, we tailored an ex vivo immune selection model for acute myeloid leukemia (AML) and isolated the residual subpopulations as "immune-experienced" AML (ieAML) cells. We confirmed that upon surviving the immune reactions, the malignant blasts frequently decelerated proliferation, displayed features of myeloid differentiation and activation, and lost immunogenicity. Transcriptomic analyses revealed a limited number of commonly altered pathways and differentially expressed genes in all ieAML cells derived from distinct parental cell lines. Molecular signatures predominantly associated with interferon and inflammatory cytokine signaling were enriched in the AML cells resisting the T-cell-mediated immune reactions. Moreover, the expression and nuclear localization of the transcription factors c-MYB and KLF6 were noted as the putative markers for immune resistance and identified in subpopulations of AML blasts in the patients' bone marrow aspirates. The immune modulatory capacities of ieAML cells lasted for a restricted period when the immune selection pressure was omitted. In conclusion, myeloid leukemia cells harbor subpopulations that can adapt to the harsh conditions established by immune reactions, and a previous "immune experience" is marked with IFN signature and may pave the way for susceptibility to immune intervention therapies.
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Affiliation(s)
- Mubaida Parveen
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Türkiye
| | - Beren Karaosmanoglu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Türkiye
| | - Ceren Sucularli
- Department of Bioinformatics, Institute of Health Sciences, Hacettepe University, Ankara, Türkiye
| | - Aysegul Uner
- Department of Pathology, Faculty of Medicine, Hacettepe University, Ankara, Türkiye
| | - Ekim Z Taskiran
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Türkiye
| | - Gunes Esendagli
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Türkiye
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3
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Koca MB, Sevilgen FE. Integration of single-cell proteomic datasets through distinctive proteins in cell clusters. Proteomics 2024; 24:e2300282. [PMID: 38135888 DOI: 10.1002/pmic.202300282] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/01/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023]
Abstract
The use of mass spectrometry and antibody-based sequencing technologies at the single-cell level has led to an increase in single-cell proteomic datasets. Integrating these datasets is crucial to eliminate the batch effect that often arises due to their limited sequencing molecules. Although methods for horizontally integrating high-dimensional single-cell transcriptomic datasets can also be applied to single-cell proteomic datasets, a specialized approach explicitly tailored for low-dimensional proteomic datasets may enhance the integration process. Here, we introduce SCPRO-HI, an algorithm for the horizontal integration of antibody-based single-cell proteomic datasets. It utilizes a hierarchical cell anchoring technique to match cells based on the similarity of distinctive proteins for constituting cell clusters. A novel variational auto-encoder model is employed for correcting batch effects on the protein abundances, eliminating the need for mapping them into a new domain. Moreover, we propose a technique for extending the algorithm to high-dimensional datasets. The performance of the SCPRO-HI algorithm is evaluated using simulated and real-world single-cell proteomic datasets. The findings demonstrate our algorithm outperforms state-of-the-art methods, achieving a 75% higher silhouette score while preserving HVPs 13% better. Furthermore, the algorithm shows competitive performance in transcriptomic datasets, suggesting potential for integrating high-dimensional mass-spectrometry-based proteomic datasets.
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Affiliation(s)
- Mehmet Burak Koca
- Computer Engineering Department, Gebze Technical University, Kocaeli, Türkiye
| | - Fatih Erdoğan Sevilgen
- Institute for Data Science and Artificial Intelligence, Boğaziçi University, İstanbul, Türkiye
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Seneldir A, Akirmak U, Halfon S. Cross-Informant Compatibility of Depression Symptoms in Children: A Network Approach. Child Psychiatry Hum Dev 2024; 55:308-319. [PMID: 35916982 PMCID: PMC10891223 DOI: 10.1007/s10578-022-01403-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 11/29/2022]
Abstract
Utilizing multiple informants to assess children's depressive symptoms increases diagnostic accuracy, reliability, and validity of inferences. However, previous studies have found low to moderate agreement among informants. We applied network statistics to gain insight into children and their mothers' differential perceptions of depressive symptoms. The sample included children and mother dyads (n = 185) who applied to psychotherapy services at an outpatient university clinic. Mothers filled out the Child Behavior Checklist, which includes a depression subscale, and children filled out the Children's Depression Inventory. We computed association networks for thirteen depressive symptoms separately for children and mothers using the graphical LASSO. Sadness had the highest strength centrality in the networks of both children and mothers, but the pattern of connectivity and centrality of other symptoms differed. We discussed our findings within the framework of network theory.
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Affiliation(s)
- Ayse Seneldir
- Department of Psychology, Istanbul Bilgi University, Istanbul, Turkey.
- Vrije University Amsterdam, Amsterdam, Netherlands.
| | - Umit Akirmak
- Department of Psychology, Istanbul Bilgi University, Istanbul, Turkey
| | - Sibel Halfon
- Department of Psychology, Istanbul Bilgi University, Istanbul, Turkey
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Yucel M, Onbas R, Arslan Yildiz A, Yildiz UH. The Soft Nanodots as Fluorescent Probes for Cell Imaging: Analysis of Cell and Spheroid Penetration Behavior of Single Chain Polymer Dots. Macromol Biosci 2024; 24:e2300402. [PMID: 38102867 DOI: 10.1002/mabi.202300402] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/22/2023] [Indexed: 12/17/2023]
Abstract
This study describes the formation, size control, and penetration behavior of polymer nanodots (Pdots) consisting of single or few chain polythiophene-based conjugated polyelectrolytes (CPEs) via nanophase separation between good solvent and poor solvent of CPE. Though the chain singularity may be associated with dilution nanophase separation suggests that molecules of a good solvent create a thermodynamically driven solvation layer surrounding the CPEs and thereby separating the single chains even in their poor solvents. This statement is therefore corroborated with emission intensity/lifetime, particle size, and scattering intensity of polyelectrolyte in good and poor solvents. Regarding the augmented features, Pdots are implemented into cell imaging studies to understand the nuclear penetration and to differentiate the invasive characteristics of breast cancer cells. The python based red, green, blue (RGB) color analysis depicts that Pdots have more nuclear penetration ability in triple negative breast cancer cells due to the different nuclear morphology in shape and composition and Pdots have penetrated cell membrane as well as extracellular matrix in spheroid models. The current Pdot protocol and its utilization in cancer cell imaging are holding great promise for gene/drug delivery to target cancer cells by explicitly achieving the very first priority of nuclear intake.
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Affiliation(s)
- Muge Yucel
- Department of Chemistry and Pharmacy, Friedrich-Alexander Universität Erlangen-Nürnberg, 91058, Erlangen, Germany
- Department of Bioengineering, Izmir Institute of Technology, İzmir, 35430, Turkey
| | - Rabia Onbas
- Department of Bioengineering, Izmir Institute of Technology, İzmir, 35430, Turkey
| | - Ahu Arslan Yildiz
- Department of Bioengineering, Izmir Institute of Technology, İzmir, 35430, Turkey
| | - Umit Hakan Yildiz
- Department of Chemistry, Izmir Institute of Technology, İzmir, 35430, Turkey
- Department of Polymer Science and Engineering, Izmir Institute of Technology, İzmir, 35430, Turkey
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Abstract
In this study, we present TURead, an eye movement dataset of silent and oral sentence reading in Turkish, an agglutinative language with a shallow orthography understudied in reading research. TURead provides empirical data to investigate the relationship between morphology and oculomotor control. We employ a target-word approach in which target words are manipulated by word length and by the addition of two commonly used suffixes in Turkish. The dataset contains well-established eye movement variables; prelexical characteristics such as vowel harmony and bigram-trigram frequencies and word features, such as word length, predictability, frequency, eye voice span measures, Cloze test scores of the root word and suffix predictabilities, as well as the scores obtained from two working memory tests. Our findings on fixation parameters and word characteristics are in line with the patterns reported in the relevant literature.
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Affiliation(s)
- Cengiz Acartürk
- Cognitive Science Department, Jagiellonian University, Kraków, Poland.
- Cognitive Science Department, Middle East Technical University, Çankaya/Ankara, Turkey.
| | - Ayşegül Özkan
- Cognitive Science Department, Jagiellonian University, Kraków, Poland
- Cognitive Science Department, Middle East Technical University, Çankaya/Ankara, Turkey
| | - Tuğçe Nur Pekçetin
- Cognitive Science Department, Middle East Technical University, Çankaya/Ankara, Turkey
| | - Zuhal Ormanoğlu
- Cognitive Science Department, Middle East Technical University, Çankaya/Ankara, Turkey
| | - Bilal Kırkıcı
- Department of Foreign Language Education, Middle East Technical University, Çankaya/Ankara, Turkey
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Fide E, Yerlikaya D, Güntekin B, Babiloni C, Yener GG. Coherence in event-related EEG oscillations in patients with Alzheimer's disease dementia and amnestic mild cognitive impairment. Cogn Neurodyn 2023; 17:1621-1635. [PMID: 37974589 PMCID: PMC10640558 DOI: 10.1007/s11571-022-09920-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 02/21/2022] [Revised: 11/02/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Objectives Working memory performances are based on brain functional connectivity, so that connectivity may be deranged in individuals with mild cognitive impairment (MCI) and patients with dementia due to Alzheimer's disease (ADD). Here we tested the hypothesis of abnormal functional connectivity as revealed by the imaginary part of coherency (ICoh) at electrode pairs from event-related electroencephalographic oscillations in ADD and MCI patients. Methods The study included 43 individuals with MCI, 43 with ADD, and 68 demographically matched healthy controls (HC). Delta, theta, alpha, beta, and gamma bands event-related ICoh was measured during an oddball paradigm. Inter-hemispheric, midline, and intra-hemispheric ICoh values were compared in ADD, MCI, and HC groups. Results The main results of the present study can be summarized as follows: (1) A significant increase of midline frontal and temporal theta coherence in the MCI group as compared to the HC group; (2) A significant decrease of theta, delta, and alpha intra-hemispheric coherence in the ADD group as compared to the HC and MCI groups; (3) A significant decrease of theta midline coherence in the ADD group as compared to the HC and MCI groups; (4) Normal inter-hemispheric coherence in the ADD and MCI groups. Conclusions Compared with the MCI and HC, the ADD group showed disrupted event-related intra-hemispheric and midline low-frequency band coherence as an estimate of brain functional dysconnectivity underlying disabilities in daily living. Brain functional connectivity during attention and short memory demands is relatively resilient in elderly subjects even with MCI (with preserved abilities in daily activities), and it shows reduced efficiency at multiple operating oscillatory frequencies only at an early stage of ADD. Supplementary Information The online version contains supplementary material available at 10.1007/s11571-022-09920-0.
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Affiliation(s)
- Ezgi Fide
- Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, Turkey
| | - Deniz Yerlikaya
- Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, Turkey
| | - Bahar Güntekin
- Department of Biophysics, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
- REMER Clinical Electrophysiology, Neuroimaging and Neuromodulation Lab, Istanbul Medipol University, Istanbul, Turkey
| | - Claudio Babiloni
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, Rome, Italy
- Hospital San Raffaele of Cassino, Cassino, Italy
| | - Görsev G. Yener
- Faculty of Medicine, Izmir University of Economics, 35330 Izmir, Turkey
- Brain Dynamics Multidisciplinary Research Center, Dokuz Eylul University, Izmir, Turkey
- Izmir Biomedicine and Genome Center, Izmir, Turkey
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Insel G, Yilmaz G, Hazi F, Artan N. Model-based evaluation of simultaneous nitrification and denitrification in aerobic granular sludge systems. Environ Sci Pollut Res Int 2023; 30:124780-124789. [PMID: 36645591 DOI: 10.1007/s11356-023-25252-w] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 01/07/2023] [Indexed: 01/17/2023]
Abstract
A lab-scale granular sludge sequencing batch reactor (G-SBR) system was operated using synthetic wastewater. The total nitrogen removal efficiency of 85% was obtained together with the achievement of complete total phosphorus removal with average granule diameter of 400 µm. Dual-step nitrification and denitrification model with fixed biofilm thickness was used for performance analysis. The denitrification mode only contributed to TN removal with 25% which can be calculated with process stoichiometry. The remaining nitrogen removal could be explained by simulating simultaneous nitrification and denitrification which was responsible for 75% denitrification during aerobic period. In addition, low NO3- concentration at the beginning of the fill period provided advantage for securing a prolonged anaerobic period for enhanced biological phosphorus removal (EBPR). The model parameters of boundary layer thickness (zBL = 50 µm) and half-saturation of O2 for nitrite-oxidizing bacteria (KO2,NOB = 0.5 gO2/m3) were tuned to fit NO2 and NO3 profiles in SBR cycle.
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Affiliation(s)
- Güçlü Insel
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Gulsum Yilmaz
- Environmental Engineering Department, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey.
| | - Ferenc Hazi
- Dynamita, 2015 Route d'Aiglun, Sigale, France
| | - Nazik Artan
- Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul, Turkey
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Akin-Bulbul I, Ozdemir S. Imitation Performance in Children with Autism and the Role of Visual Attention in Imitation. J Autism Dev Disord 2023; 53:4604-4617. [PMID: 36085430 DOI: 10.1007/s10803-022-05726-5] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 10/14/2022]
Abstract
In this study, we examined imitation performance, visual attention, and the relationship between imitation and visual attention of children with autism, developmental delay (DD), and typically developing (TD) children. The study findings revealed that children with autism and DD imitated less than TD children in all imitation tasks. Results also showed that children with autism spent less time looking at the model's face and movement area and more time looking at the external area. Lastly, the relationship between imitation and visual attention separated the study groups. The findings of the study provided new evidence that visual attention to movement area in children with autism was positively related to imitation performance in non-meaningful gestures.
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Affiliation(s)
- Isik Akin-Bulbul
- Department of Special Education, Gazi Education Faculty, Gazi University, Teknikokullar, Ankara, Turkey.
| | - Selda Ozdemir
- Department of Special Education, Education Faculty, Hacettepe University, Beytepe, Ankara, Turkey
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Cevheroğlu O, Demir N, Kesici MS, Özçubukçu S, Son ÇD. Downstream signalling of the disease-associated mutations on GPR56/ADGRG1. Basic Clin Pharmacol Toxicol 2023; 133:331-341. [PMID: 37056198 DOI: 10.1111/bcpt.13873] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/02/2023] [Accepted: 04/01/2023] [Indexed: 04/15/2023]
Abstract
GPR56/ADGRG1 is an adhesion G protein-coupled receptor (GPCR) and mutations on this receptor cause cortical malformation due to the over-migration of neural progenitor cells on brain surface. At pial surface, GPR56 interacts with collagen III, induces Rho-dependent activation through Gα12/13 and inhibits the neuronal migration. In human glioma cells, GPR56 inhibits cell migration through Gαq/11 -dependent Rho pathway. GPR56-tetraspanin complex is known to couple Gαq/11 . GPR56 is an aGPCR that couples with various G proteins and signals through different downstream pathways. In this study, bilateral frontoparietal polymicrogyria (BFPP) mutants disrupting GPR56 function but remaining to be expressed on plasma membrane were used to study receptor signalling through Gα12 , Gα13 and Gα11 with BRET biosensors. GPR56 showed coupling with all three G proteins and activated heterotrimeric G protein signalling upon stimulation with Stachel peptide. However, BFPP mutants showed different signalling defects for each G protein indicative of distinct activation and signalling properties of GPR56 for Gα12 , Gα13 or Gα11 . β-arrestin recruitment was also investigated following the activation of GPR56 with Stachel peptide using BRET biosensors. N-terminally truncated GPR56 showed enhanced β-arrestin recruitment; however, neither wild-type receptor nor BFPP mutants gave any measurable recruitment upon Stachel stimulation, pointing different activation mechanisms for β-arrestin involvement.
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Affiliation(s)
| | - Nil Demir
- Department of Biological Sciences, Middle East Technical University, Ankara, Türkiye
| | | | - Salih Özçubukçu
- Department of Chemistry, Middle East Technical University, Ankara, Türkiye
| | - Çağdaş D Son
- Department of Biological Sciences, Middle East Technical University, Ankara, Türkiye
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Ay U, Yıldırım Z, Erdogdu E, Kiçik A, Ozturk-Isik E, Demiralp T, Gurvit H. Shrinkage of olfactory amygdala connotes cognitive impairment in patients with Parkinson's disease. Cogn Neurodyn 2023; 17:1309-1320. [PMID: 37786655 PMCID: PMC10542039 DOI: 10.1007/s11571-022-09887-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 12/15/2021] [Revised: 09/04/2022] [Accepted: 09/14/2022] [Indexed: 11/03/2022] Open
Abstract
During the caudo-rostral progression of Lewy pathology, the amygdala is involved relatively early in Parkinson's disease (PD). However, lesser is known about the volumetric differences at the amygdala subdivisions, although the evidence mainly implicates the olfactory amygdala. We aimed to investigate the volumetric differences between the amygdala's nuclear and sectoral subdivisions in the PD cognitive impairment continuum compared to healthy controls (HC). The volumes of nine nuclei of the amygdala were estimated with FreeSurfer (nuclear parcellation-NP) from T1-weighted images of PD patients with normal cognition (PD-CN), PD with mild cognitive impairment (PD-MCI), PD with dementia (PD-D), and HC. The appropriate nuclei were then merged to obtain three sectors of the amygdala (sectoral parcellation-SP). The nuclear and sectoral volumes were compared among the four groups and between the hyposmic and normosmic PD patients. There was a significant difference in the total amygdala volume among the four groups. In terms of nuclei, the bilateral cortico-amygdaloid transition area (CAT) and sectors superficial cortex-like region (sCLR) volumes of PD-MCI and PD-D were less than those of the PD-CN and HC. A linear discriminant analysis revealed that left CAT and left sCLR volumes classified the PD-CN and cognitively impaired PD (PD-CI: PD-MCI plus PD-D) with 90.7% accuracy according to NP and 85.2% accuracy to SP. Similarly, left CAT and sCLR volumes correctly identified the hyposmic and normosmic PD with 64.8% and 61.1% accuracies. Notably, the left olfactory amygdala volume successfully discriminated cognitive impairment in PD and could be used as neuroimaging-based support for PD-CI diagnosis. Supplementary Information The online version contains supplementary material available at 10.1007/s11571-022-09887-y.
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Affiliation(s)
- Ulaş Ay
- Department of Neuroscience, Aziz Sancar Institute of Experimental Medicine, Istanbul University, 34093 Istanbul, Turkey
- Neuroimaging Unit, Hulusi Behcet Life Sciences Research Laboratory, Istanbul University, 34093 Istanbul, Turkey
- Graduate School of Health Sciences, Istanbul University, 34126 Istanbul, Turkey
| | - Zerrin Yıldırım
- Department of Neuroscience, Aziz Sancar Institute of Experimental Medicine, Istanbul University, 34093 Istanbul, Turkey
- Neuroimaging Unit, Hulusi Behcet Life Sciences Research Laboratory, Istanbul University, 34093 Istanbul, Turkey
- Department of Neurology, Bagcilar Education and Research Hospital, 34200 Istanbul, Turkey
| | - Emel Erdogdu
- Neuroimaging Unit, Hulusi Behcet Life Sciences Research Laboratory, Istanbul University, 34093 Istanbul, Turkey
- Department of Psychology, Faculty of Arts and Sciences, Isik University, 34980 Istanbul, Turkey
| | - Ani Kiçik
- Neuroimaging Unit, Hulusi Behcet Life Sciences Research Laboratory, Istanbul University, 34093 Istanbul, Turkey
- Department of Physiology, Faculty of Medicine, Demiroglu Bilim University, 34394 Istanbul, Turkey
| | - Esin Ozturk-Isik
- Institute of Biomedical Engineering, Bogazici University, 34684 Istanbul, Turkey
| | - Tamer Demiralp
- Department of Physiology, Istanbul Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
| | - Hakan Gurvit
- Behavioral Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
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Duman C, Uslu FS, Çakmak S, Aytekin ŞI, Apaydın T, Egil E. Accessibility to dental services by immigrant and refugee children residing in Turkey. Int J Paediatr Dent 2023; 33:423-430. [PMID: 36529532 DOI: 10.1111/ipd.13043] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 11/17/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Turkey is hosting the world's largest immigrant population under temporary and international protection. Due to the social inequalities contributing to early childhood dental caries, the effectiveness of dental care service for immigrant children should be evaluated. AIM To evaluate the accessibility of immigrant and refugee children residing in four different regions of Turkey to oral health products and dental treatment services. DESIGN A questionnaire consisting of 21 questions was administered: The first six questions elicited demographic data, and the remaining 15 questions asked about oral health habits, access to oral hygiene materials, and dental treatment services. Participants included the parents of 430 children under the age of 18, who were registered with migrant associations in the regions where they lived (Istanbul, Samsun, Hatay, or Ankara). RESULTS The majority of the participants were from Syria and Iraq. Of the participants, 42.1% reported that their children's oral hygiene habits had changed negatively after they migrated, 71.9% reported that they had not been to the dentist in the last year, and 82.8% reported that they had not been to the dentist for more than 12 months. Access to oral and dental hygiene products was not difficult for 68.4%. About 62.6%, however, reported that they had difficulty accessing dental treatment. CONCLUSION The findings showed that this disadvantaged group had difficulty accessing dental treatment. Therefore, there is a need for national and international health strategies to ensure that immigrant and refugee children have effective access to dental treatment.
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Affiliation(s)
- Canan Duman
- Department of Pediatric Dentistry, School of Dentistry, Istanbul Atlas University, Istanbul, Turkey
| | - Fatih Samet Uslu
- School of Dentistry, Istanbul Atlas University, Istanbul, Turkey
| | - Sena Çakmak
- School of Dentistry, Istanbul Atlas University, Istanbul, Turkey
| | | | - Tuana Apaydın
- School of Dentistry, Istanbul Atlas University, Istanbul, Turkey
| | - Edibe Egil
- Department of Pediatric Dentistry, Istanbul Gelisim University, Istanbul, Turkey
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13
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Arslan S, Balkaya H, Durukan SM, Silici S. The effect of propolis on the bond strength of composite resin to enamel after intracoronal bleaching with different bleaching agents. AUST ENDOD J 2023; 49 Suppl 1:366-373. [PMID: 36960971 DOI: 10.1111/aej.12750] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/06/2023] [Indexed: 03/25/2023]
Abstract
This study evaluated the effect of propolis as an antioxidant agent on bond strength to enamel after intracoronal bleaching. A total of 160 incisors were endodontically treated. Sixteen teeth were served as control, and the remaining teeth were randomly divided into three main groups according to the bleaching agent used; group 1: Sodium perborate (SP); group 2: Carbamide peroxide (CP); group 3: Hydrogen peroxide (HP). After bleaching, the samples were divided into three subgroups; subgroup A: no antioxidant agent application, subgroup B: sodium ascorbate (SA), subgroup C: propolis (PP). After the antioxidant agents application, the sample's surfaces were washed and dried. After adhesive application, composite resin cylinders were applied to enamel surfaces using tygon tubes and a shear bond strength test was performed. The use of PP significantly decreased the bond strength of composite resin to the enamel (p < 0.05). Using propolis as an antioxidant agent adversely affects the bond strength to enamel after intracoronal bleaching.
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Affiliation(s)
- Soley Arslan
- Department of Restorative Dentistry, Erciyes University Faculty of Dentistry, Kayseri, Turkey
| | - Hacer Balkaya
- Department of Restorative Dentistry, Erciyes University Faculty of Dentistry, Kayseri, Turkey
| | - Sebahat Melike Durukan
- Department of Restorative Dentistry, Erciyes University Faculty of Dentistry, Kayseri, Turkey
| | - Sibel Silici
- Department of Agricultural Biotechnology, Nutral Therapy Co. Erciyes Technopark, Erciyes University Faculty of Agriculture, Kayseri, Turkey
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14
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Öztürk H, Geniş B, Özden Tuncer B, Tuncer Y. Bacteriocin production and technological properties of Enterococcus mundtii and Enterococcus faecium strains isolated from sheep and goat colostrum. Vet Res Commun 2023; 47:1321-1345. [PMID: 36738399 DOI: 10.1007/s11259-023-10080-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Enterococci are lactic acid bacteria (LAB) that play a role in the aroma formation, maturation, and sensory development of fermented foods such as meat and dairy products. They also contribute to the improvement of the extended shelf life of fermented foods by producing bacteriocin. The aim of this study was to isolate bacteriocin-producing LAB from sheep and goat colostrum, to characterize the bacteriocin-producing strains, and determine the technological properties of the strains. A total of 13 bacteriocin-producing LAB was isolated and identified as 11 Enterococcus mundtii and two Enterococcus faecium. The strains were found to be genetically different from each other by phylogenetic analysis of 16S rRNA gene sequences and random amplified polymorphic-DNA (RAPD-PCR). It has been determined that bacteriocins show activity in a wide pH range and are resistant to heat, lose their activity with proteolytic enzymes and α-amylase, but are resistant to detergents. While the presence of the munKS gene was detected in all of the strains, it was determined that E. faecium HC121.4, HC161.1, E. mundtii HC147.1, HC166.5, and HC166.8 strains contained multiple enterocin genes. Trisin-SDS-PAGE analysis revealed two active protein bands of approximately 5.1 and 5.5 kDa in E. faecium HC121.4 and one active protein band with a weight of approximately 4.96 kDa in other strains. E. mundtii strains and E. faecium HC161.1 were identified as mundticin KS producers, and E. faecium HC121.4 was defined as an enterocin A and B producer. Except for E. mundtii HC166.8, acid production of strains was found to be slow at 6 h and moderate at 24 h. None of them showed extracellular proteolytic and lipolytic activities. It was found that the strains had esterase, esterase lipase, leucine arylamidase, acid phosphatase, and naphthol-AS-Bl-phosphohydrolase activities, while protease activities were low and peptidase activities were high. In conclusion, bacteriocin producer 13 Enterococcus strains isolated from sheep and goat colostrum were found to have the potential to be included in starter culture combinations.
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Affiliation(s)
- Hüseyin Öztürk
- Department of Food Technology, Manavgat Vocational School, Akdeniz University, 07600, Antalya, Turkey
| | - Burak Geniş
- Faculty of Engineering, Department of Food Engineering, Süleyman Demirel University, 32260, Isparta, Turkey
| | - Banu Özden Tuncer
- Faculty of Engineering, Department of Food Engineering, Süleyman Demirel University, 32260, Isparta, Turkey
| | - Yasin Tuncer
- Faculty of Engineering, Department of Food Engineering, Süleyman Demirel University, 32260, Isparta, Turkey.
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15
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Karaavci FA, Karan M. Comparative localization of the courses of superficial veins in rabbits' limbs using latex and VeinViewer systems. Anat Histol Embryol 2023; 52:684-695. [PMID: 37096443 DOI: 10.1111/ahe.12925] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/17/2023] [Accepted: 04/10/2023] [Indexed: 04/26/2023]
Abstract
The purpose of this study; It is to reveal whether the veinviewer device, which we have not encountered in animals, can be visualized in rabbits for thoracic and pelvic limb superficial veins. Therefore, the latex method was used as a "gold test" to verify VeinViewer precision. For this purpose, the project was designed with two stages. In the first stage, the extremities of 15 New Zealand white rabbits were imaged using the VeinViewer device, and the results were recorded. In the second stage, the latex injection method was applied to the same animals, the cadavers were dissected, and the obtained results were comparatively analysed. In the rabbits, it was determined that v. cephalica originated from v. jugularis or v. brachialis in the proximity of the insertion of m. omotransversarius and anastomosed with v. mediana at the middle 1/3 level of the antebrachium. It was found that the superficial venous circulation of the pelvic limbs was provided by the branches of v. iliaca externa and v. iliaca interna. The vena saphena medialis was determined to be present in pairs in 80% of the cadavers. All cadavers showed the presence of the ramus anastomoticus cum vena saphena mediali. Additionally, the superficial veins of both the thoracic limbs and pelvic limbs of the rabbits were imaged with the VeinViewer device, which provided results parallel with the results of the latex injection method. Considering that the findings obtained with the latex injection method and the VeinViewer device were compatible, the usage of this device can potentially be considered as an alternative to visualizing superficial veins in animals. Further morphological and clinical studies can prove that the method is applicable.
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Affiliation(s)
| | - Meryem Karan
- Department of Anatomy, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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16
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Nezir AE, Bolat ZB, Ozturk N, Kocak P, Zemheri E, Gulyuz S, Ozkose UU, Yilmaz O, Vural I, Bozkır A, Sahin F, Telci D. Targeting prostate cancer with docetaxel-loaded peptide 563-conjugated PEtOx-co-PEI 30%-b-PCL polymeric micelle nanocarriers. Amino Acids 2023; 55:1023-1037. [PMID: 37318626 DOI: 10.1007/s00726-023-03292-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 06/05/2023] [Indexed: 06/16/2023]
Abstract
Prostate cancer is a global disease that negatively affects the quality of life. Although various strategies against prostate cancer have been developed, only a few achieved tumor-specific targeting. Therefore, a special emphasis has been placed on the treatment of cancer using nano-carrier-encapsulated chemotherapeutic agents conjugated with tumor-homing peptides. The targeting strategy coupling the drugs with nanotechnology helps to overcome the most common barriers, such as high toxicity and side effects. Prostate-specific membrane antigen has emerged as a promising target molecule for prostate cancer and shown to be targeted with high affinity by GRFLTGGTGRLLRIS peptide known as peptide 563 (P563). Here, we aimed to assess the in vitro and in vivo targeting efficiency, safety, and efficacy of P563-conjugated, docetaxel (DTX)-loaded polymeric micelle nanoparticles (P563-PEtOx-co-PEI30%-b-PCL-DTX) against prostate cancer. To this end, we analyzed the cytotoxic activity of P563-PEtOx-co-PEI30%-b-PCL and P563-PEtOx-co-PEI30%-b-PCL-DTX by a cell proliferation assay using PNT1A and 22Rv1 cells. We have also determined the targeting selectivity of P563-PEtOx-co-PEI30%-b-PCL-FITC by flow cytometry and assessed the induction of cell death by western blot and TUNEL assays for P563-PEtOx-co-PEI30%-b-PCL-DTX in 22Rv1 cells. To investigate the in vivo efficacy, we administered DTX in the free form or in polymeric micelle nanoparticles to athymic CD-1 nu/nu mice 22Rv1 xenograft models and performed histopathological analyses. Our study showed that targeting prostate cancer with P563-conjugated PEtOx-co-PEI30%-b-PCL polymeric micelles could exert a potent anti-cancer activity with low side effects.
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Affiliation(s)
- Ayca Ece Nezir
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Inonu Mahallesi, Kayisdagi Caddesi, Atasehir, 34755, Istanbul, Turkey
| | - Zeynep Busra Bolat
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Inonu Mahallesi, Kayisdagi Caddesi, Atasehir, 34755, Istanbul, Turkey
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Kucukcekmece, 34303, Istanbul, Turkey
| | - Naile Ozturk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Sihhiye, 06100, Ankara, Turkey
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Inonu University, Battalgazi, 44280, Malatya, Turkey
| | - Polen Kocak
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Inonu Mahallesi, Kayisdagi Caddesi, Atasehir, 34755, Istanbul, Turkey
| | - Ebru Zemheri
- Department of Pathology, Umraniye Training and Research Hospital, University of Health Sciences, Umraniye, Istanbul, Turkey
| | - Sevgi Gulyuz
- Materials Institute, Marmara Research Center, TUBITAK, Gebze, Turkey
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Umut Ugur Ozkose
- Materials Institute, Marmara Research Center, TUBITAK, Gebze, Turkey
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul, Turkey
- Department of Chemistry, Faculty of Science and Letters, Piri Reis University, Tuzla, Istanbul, Turkey
| | - Ozgur Yilmaz
- Materials Institute, Marmara Research Center, TUBITAK, Gebze, Turkey
| | - Imran Vural
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Sihhiye, 06100, Ankara, Turkey
| | - Asuman Bozkır
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Yeni Mahalle, 06560, Ankara, Turkey
| | - Fikrettin Sahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Inonu Mahallesi, Kayisdagi Caddesi, Atasehir, 34755, Istanbul, Turkey
| | - Dilek Telci
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Inonu Mahallesi, Kayisdagi Caddesi, Atasehir, 34755, Istanbul, Turkey.
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17
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Altay Ö, Selçuk E, Abacı Ö, Erdem F, Dirim SN, Şentürk U, Kaymak-Ertekin F. Recent progress in food processing applications of air impingement technology: A review. Compr Rev Food Sci Food Saf 2023; 22:3084-3104. [PMID: 37184481 DOI: 10.1111/1541-4337.13175] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023]
Abstract
Air impingement method has been widely used in a variety of industrial applications, such as textile and paper drying, turbine cooling, and glass quenching, because it is an efficient technology with high heat and mass transfer rates. This technology has received increasing interest in the field of food processing over the last two decades, such as drying, baking, blanching, freezing, and thawing. In a food processing equipment using air impingement, jets of high-velocity air (with speeds of 10-50 m/s) are directed at a food product. The performance of the system is influenced by several critical elements, including jet velocity, nozzle array diameter and layout, jet distance, and boundary layer characteristics. The use of computational fluid dynamics, an emerging tool, has been shown to be valuable in the analysis of fluid flow and heat and mass transfer in jet impingement systems. The physical properties of impinging jets, such as turbulent mixing in the free jet zone, stagnation, boundary layer formation, recirculation, and their interactions with food products in terms of heat and mass transfer, have been discussed in this article. The benefits and disadvantages of air jet impingement technology in different food processing applications together with potential trends for improving impingement technology performance were identified and discussed. This review not only contributes to a better understanding of the research status of impingement technology on food processing but also triggers new research opportunities in this field in order to provide more healthy and nutritious food in a more sustainable way to the world's growing population.
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Affiliation(s)
- Özgül Altay
- Department of Food Engineering, Ege University, Izmir, Turkey
| | - Esin Selçuk
- Department of Food Engineering, Ege University, Izmir, Turkey
| | - Ömer Abacı
- Department of Mechanical Engineering, Ege University, Izmir, Turkey
| | | | - S Nur Dirim
- Department of Food Engineering, Ege University, Izmir, Turkey
| | - Utku Şentürk
- Department of Mechanical Engineering, Ege University, Izmir, Turkey
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18
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Aksakal E, Soydan E, Tunç A, Vural O, Kamaszewski M, Ekinci D. Chronic hypoxia and hyperoxia alter tissue-specific fatty acid profile and FD6D and elongase gene expression levels in rainbow trout (Oncorhynchus mykiss). J Comp Physiol B 2023:10.1007/s00360-023-01501-9. [PMID: 37284836 DOI: 10.1007/s00360-023-01501-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 05/20/2023] [Accepted: 05/26/2023] [Indexed: 06/08/2023]
Abstract
Commercially important trout species, especially rainbow trout, are under great threat due to several negative factors affecting oxygen levels in water such as global warming and eutrophication. In our study, rainbow trout (Oncorhynchus mykiss) was exposed to chronic (for 28 days) hypoxia (4.0 ± 0.5 mg/L) and hyperoxia (12 ± 1.2 mg/L) in order to evaluate the alteration of fatty acid profiles in muscle, liver and gill tissues. In addition, delta-6-desaturase and elongase gene expression profiles were measured in liver, kidney and gill tissues. The amount of saturated fatty acids increased by oxygen applications in the liver, while it decreased in the muscle and gill tissues compared to normoxia (p < 0.05). Monounsaturated fatty acids levels increased in muscle and gill (p < 0.05). Although n-3 polyunsaturated fatty acid (PUFA) decreased in muscle tissue, n-6 PUFA increased (p < 0.05). The n-3/n-6 ratio decreased in muscle tissue in response to the both exposures (p < 0.05) as well as eicosapentaenoic acid/docosahexaenoic acid ratio (p < 0.05). Hypoxia exposure generally increased delta-6-desaturase and elongase mRNA levels in all tissues (p < 0.05). However, gene expression profiles were variable in fish exposed to hyperoxia. As a result of oxygen exposures, the lipid profile of muscle tissue, which stores dense fat, was negatively affected more than that of liver and gill tissues. We determined that the change in expression levels was tissue specific.
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Affiliation(s)
- Ercüment Aksakal
- Division of Animal Biotechnology, Department of Agricultural Biotechnology, Agriculture Faculty, Akdeniz University, 07058, Antalya, Turkey.
| | - Ercan Soydan
- Department of Agricultural Biotechnology, Agriculture Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Abdullah Tunç
- Department of Occupational Health and Safety, Faculty of Health Sciences, Bingöl University, 12000, Bingöl, Turkey
| | - Onur Vural
- Division of Animal Biotechnology, Department of Agricultural Biotechnology, Agriculture Faculty, Akdeniz University, 07058, Antalya, Turkey
- Department of Plant and Animal Production, Kumluca Vocational School, Akdeniz University, 07350, Antalya, Turkey
| | - Maciej Kamaszewski
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, University of Life Sciences, Warsaw, Poland
| | - Deniz Ekinci
- Department of Agricultural Biotechnology, Agriculture Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
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19
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Amiri AM, Dadaser-Celik F. Multi-temporal assessment of land surface temperatures as an indicator of land use/cover changes and climate variability in the Develi Basin, Turkey. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27746-z. [PMID: 37222894 DOI: 10.1007/s11356-023-27746-z] [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] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 05/15/2023] [Indexed: 05/25/2023]
Abstract
Land surface temperature (LST) is an important parameter that reflects land surface processes of water and energy balance and has been used in assessment of land use/cover changes. However, the use of LST in monitoring changes in non-urban areas such as agricultural areas and wetlands is still limited. In this study, we aim to determine the spatial and temporal changes in LST in a semi-arid agricultural basin in Turkey (Develi Basin), where land use/cover and climatic conditions showed considerable variability since 1980s. Irrigated agriculture have expanded in the basin since 1987, after the construction of a large irrigation project. The basin hosts an internationally important wetland, called the Sultan Marshes, affected negatively by irrigation expansion. The study covers a 39-year period from 1984 to 2022. Four Landsat Thematic Mapper (TM) images acquired in 1984, 1987, 2003, and 2007 and two Landsat 8 OLI/TIRS images acquired in 2014 and 2022 were used in the analyses. The land use/cover changes were evaluated based on Normalized Difference Vegetation Index (NDVI). LST was estimated through top-of-atmosphere brightness temperature from thermal bands of Landsat images. Climate variability from 2014 to 2022 was analyzed with statistical methods. The results indicated that Develi Basin faced both spatial and temporal land use/cover changes. The area covered with natural steppe vegetation and water bodies decreased in the basin. In contrast, the sparsely and densely vegetated soil covers, which mostly denote agricultural areas, increased. Changes in LST values were observed from 1984 to 2022 as a result of climatic factors and land use/cover changes. LST changes were variable across different land use/cover types; LST decreased in irrigated areas and increased in lakes that went dry over years. LST changes proved useful for evaluating land use/cover changes and climatic variations in agricultural basins.
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Affiliation(s)
- Ali Muslim Amiri
- Department of Environmental Engineering, Erciyes University, Kayseri, Turkey
| | - Filiz Dadaser-Celik
- Department of Environmental Engineering, Erciyes University, Kayseri, Turkey.
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20
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Hayıt T, Erbay H, Varçın F, Hayıt F, Akci N. The classification of wheat yellow rust disease based on a combination of textural and deep features. Multimed Tools Appl 2023:1-19. [PMID: 37362723 PMCID: PMC10173929 DOI: 10.1007/s11042-023-15199-y] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/09/2023] [Accepted: 03/30/2023] [Indexed: 06/28/2023]
Abstract
Yellow rust is a devastating disease that causes significant losses in wheat production worldwide and significantly affects wheat quality. It can be controlled by cultivating resistant cultivars, applying fungicides, and appropriate agricultural practices. The degree of precautions depends on the extent of the disease. Therefore, it is critical to detect the disease as early as possible. The disease causes deformations in the wheat leaf texture that reveals the severity of the disease. The gray-level co-occurrence matrix(GLCM) is a conventional texture feature descriptor extracted from gray-level images. However, numerous studies in the literature attempt to incorporate texture color with GLCM features to reveal hidden patterns that exist in color channels. On the other hand, recent advances in image analysis have led to the extraction of data-representative features so-called deep features. In particular, convolutional neural networks (CNNs) have the remarkable capability of recognizing patterns and show promising results for image classification when fed with image texture. Herein, the feasibility of using a combination of textural features and deep features to determine the severity of yellow rust disease in wheat was investigated. Textural features include both gray-level and color-level information. Also, pre-trained DenseNet was employed for deep features. The dataset, so-called Yellow-Rust-19, composed of wheat leaf images, was employed. Different classification models were developed using different color spaces such as RGB, HSV, and L*a*b, and two classification methods such as SVM and KNN. The combined model named CNN-CGLCM_HSV, where HSV and SVM were employed, with an accuracy of 92.4% outperformed the other models.
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Affiliation(s)
- Tolga Hayıt
- Department of Computer Engineering, Faculty of Engineering and Architecture, Yozgat Bozok University, Yozgat, 66900 Türkiye
| | - Hasan Erbay
- Computer Engineering Department, Engineering Faculty, University of Turkish Aeronautical Association, 06790 Etimesgut Ankara, Türkiye
- Computer Engineering Department, Engineering Faculty, Ostim Technical University, 06374 Ostim Ankara, Türkiye
| | - Fatih Varçın
- Department of Computer Engineering, Faculty of Technology, Sakarya University of Applied Sciences, Sakarya, 54187 Türkiye
| | - Fatma Hayıt
- Department of Gastronomy and Culinary Arts, Tourism Faculty, Yozgat Bozok University, Yozgat, 66900 Türkiye
| | - Nilüfer Akci
- Directorate of Plant Protection Central Research Institute, Republic of Türkiye Ministry of Agriculture and Forestry, Ankara, 06172 Türkiye
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21
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Çepni E, Börklü E, Avcı Ş, Kalaycı T, Eraslan S, Kayserili H. Revisiting TOP2B-related phenotypes: Three new cases and literature review. Clin Genet 2023. [PMID: 37068767 DOI: 10.1111/cge.14341] [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: 01/18/2023] [Revised: 03/29/2023] [Accepted: 04/02/2023] [Indexed: 04/19/2023]
Abstract
DNA Topoisomerase IIβ (TOP2B) acts on DNA topology during transcription and has a critical role in neural development. Heterozygous pathogenic changes in its encoding gene, TOP2B (MIM *126431), has been linked with three overlapping phenotypes characterized by immunodeficiency, acral and urogenital anomalies: Hoffman, BILU and Ablepharon-macrostomia-like syndrome. We herein report on a mother and two sons with distinct TOP2B-phenotype. Two males reported further delineated genital phenotype of males and all reported patients were reviewed for genotype-phenotype correlation. We believe the patients reported herein along with the previously defined 11 represent a phenotypic spectrum from mild-to-severe immunological, acral and urogenital involvement, for which we propose the acronym "TOP2B-related Immunodeficiency and Congenital Anomalies Spectrum (TICAS)".
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Affiliation(s)
- Ece Çepni
- Institute of Health Sciences, Koç University, Istanbul, Turkey
| | - Esra Börklü
- Genetic Diseases Evaluation Center, Koç University Hospital, Istanbul, Turkey
| | - Şahin Avcı
- Genetic Diseases Evaluation Center, Koç University Hospital, Istanbul, Turkey
| | - Tuğba Kalaycı
- Division of Medical Genetics, Department of Internal Medicine, İstanbul School of Medicine, İstanbul University, İstanbul, Turkey
| | - Serpil Eraslan
- Genetic Diseases Evaluation Center, Koç University Hospital, Istanbul, Turkey
| | - Hülya Kayserili
- Institute of Health Sciences, Koç University, Istanbul, Turkey
- Genetic Diseases Evaluation Center, Koç University Hospital, Istanbul, Turkey
- Medical Genetics Department, Koç University School of Medicine (KUSoM), Istanbul, Turkey
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22
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Ebrahimi A, Ergün T, Kaygusuz İzgördü Ö, Darcan C, Avci H, Öztürk B, Güner HR, Ghorbanpoor H, Doğan Güzel F. Revealing the single-channel characteristics of OprD (OccAB1) porins from hospital strains of Acinetobacter baumannii. Eur Biophys J 2023:10.1007/s00249-023-01651-2. [PMID: 37052656 DOI: 10.1007/s00249-023-01651-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 03/28/2023] [Accepted: 04/07/2023] [Indexed: 04/14/2023]
Abstract
Nowadays, reports of antimicrobial resistance (AMR) against many antibiotics are increasing because of their misapplication. With this rise, there is a serious decrease in the discovery and development of new types of antibiotics amid an increase in multi-drug resistance. Unfermented Acinetobacter baumannii from gram-negative bacteria, which is one of the main causes of nosocomial infections and multi-drug resistance, has 4 main kinds of antibiotic resistance mechanism: inactivating antibiotics by enzymes, reduced numbers of porins and changing of their target or cellular functions due to mutations, and efflux pumps. In this study, characterization of the possible mutations in OprD (OccAB1) porins from hospital strains of A. baumannii were investigated using single channel electrophysiology and compared with the standard OprD isolated from wild type ATCC 19,606. For this aim, 5 A. baumannii bacteria samples were obtained from patients infected with A. baumannii, after which OprD porins were isolated from these A. baumannii strains. OprD porins were then inserted in an artificial lipid bilayer and the current-voltage curves were obtained using electrical recordings through a pair of Ag/AgCl electrodes. We observed that each porin has a characteristic conductance and single channel recording, which then leads to differences in channel diameter. Finally, the single channel data have been compared with the gene sequences of each porin. It was interesting to find out that each porin isolated has a unique porin diameter and decreased anion selectivity compared to the wild type.
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Affiliation(s)
- Aliakbar Ebrahimi
- Faculty of Engineering and Natural Sciences, Department of Biomedical Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey
- Cellular Therapy and Stem Cell Research Center and Translational Medicine Research and Clinical Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Tuğçe Ergün
- Faculty of Engineering and Natural Sciences, Department of Biomedical Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey
- Department of Biotechnology and Biosafety, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Özge Kaygusuz İzgördü
- Biotechnology Application and Research Center, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Cihan Darcan
- Faculty of Science and Literature, Department of Molecular Biology and Genetics, Bilecik Seyh Edebali University, Bilecik, Turkey
| | - Hüseyin Avci
- Cellular Therapy and Stem Cell Research Center and Translational Medicine Research and Clinical Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, Turkey
- Faculty of Engineering and Architecture, Department of Metallurgical and Material Engineering, Eskisehir Osmangazi University, Eskisehir, Turkey
- Department of Stem Cell, Institute of Health Sciences, Eskisehir Osmangazi University, Eskisehir, Turkey
- Translational Medicine Research and Clinical Center (TATUM), Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Barçin Öztürk
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Adnan Menderes University, Aydin, Turkey
| | - Hatice Rahmet Güner
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Hamed Ghorbanpoor
- Cellular Therapy and Stem Cell Research Center and Translational Medicine Research and Clinical Center (ESTEM), Eskisehir Osmangazi University, Eskisehir, Turkey
- Department of Biomedical Engineering, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Fatma Doğan Güzel
- Faculty of Engineering and Natural Sciences, Department of Biomedical Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey.
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Yilmaz D, Gürsoy M, Gürsoy UK. Anti-Apoptotic and Pro-Apoptotic Bcl-2 Family Proteins in Peri-Implant Diseases. Clin Oral Implants Res 2023. [PMID: 37035912 DOI: 10.1111/clr.14067] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/09/2023] [Accepted: 03/30/2023] [Indexed: 04/11/2023]
Abstract
OBJECTIVES Intrinsic apoptosis, which is regulated by Bcl-2 family proteins, has an important role in chronic inflammatory diseases. The aim of the study was to identify the tissue levels and ratios of anti- and pro-apoptotic Bcl-2 family proteins in peri-implant diseases. MATERIALS AND METHODS Twenty-three individuals with peri-implant mucositis, 25 individuals with peri-implantitis, and 24 controls were included. The following clinical parameters were recorded: keratinized mucosa width, modified bleeding index, probing depth, modified plaque index, modified gingival index, and keratinized tissue thickness. Marginal alveolar bone assessments were performed by a software program. Granulation tissues were collected during treatments of peri-implant diseases. The control tissue samples were collected during the second stage of implant surgery. The tissue levels of Bcl-2 family pro-apoptotic (Bak, Bax, active caspase-3) and anti-apoptotic (Bcl-2, Bcl-xL, Mcl-1) proteins were determined by multiplex immunoassay method. RESULTS The pro-apoptotic proteins; Bak, Bax and anti-apoptotic proteins Bcl-2, Bcl-xL, Mcl-1 were detected significantly higher in controls compared with patients with peri-implant mucositis and peri-implantitis (p < .001), respectively. The higher active caspase-3 levels were also detected in controls in comparison with peri-implant mucositis (p = .018) and peri-implantitis (p = .005). Anti-apoptotic: pro-apoptotic protein ratios (Bcl-2:Bax, p < .001; Bcl-2:Bak, p = .01; Bcl-xL: Bax, p = .006, Bcl-xL:Bak, p = .011; Mcl-1:Bak, p < .001) were significantly increased in diseased groups. A positive correlation was demonstrated between clinical variables and anti-apoptotic: pro-apoptotic ratios. CONCLUSION Our findings indicate dysregulation of the Bcl-2 family proteins in peri-implant diseases. This unregulated response may disturb the homeostasis of peri-implant tissue.
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Affiliation(s)
- Dogukan Yilmaz
- Department of Periodontology, Faculty of Dentistry, Sakarya University, Sakarya, Turkey
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Mervi Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Ulvi Kahraman Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
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Yilmaz M, Demir E, Gürsoy M, Firatli E, Loimaranta V, Gürsoy UK. Salivary levels of BAFF, TWEAK, and soluble CD163 and salivary arginase activity before and after periodontal treatment. J Periodontal Res 2023; 58:646-654. [PMID: 37021333 DOI: 10.1111/jre.13124] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 03/13/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023]
Abstract
OBJECTIVE To monitor salivary B-cell activating factor (BAFF), tumor necrosis factor-like weak inducer of apoptosis (TWEAK), and soluble (s)CD163 levels and arginase activity in periodontitis patients following nonsurgical periodontal treatment. BACKGROUND BAFF, TWEAK, and sCD163 and arginase are associated with activities of B cells and macrophages, which are important regulators of periodontal immune-inflammatory response and healing following treatment. Increased salivary BAFF and sCD163 levels and arginase activity in periodontitis have been demonstrated, but their changes following treatment have not been evaluated before. MATERIALS AND METHODS Forty-four Stage III/IV periodontitis patients and 35 periodontally healthy controls were included in the study. Full-mouth periodontal measurements were recorded and unstimulated saliva was obtained from all participants at baseline. Sample collection and measurements were repeated in periodontitis patients at 2, 6, 12, and 24 weeks following full-mouth scaling and root debridement, whereas controls were only seen at baseline. BAFF, TWEAK, and sCD163 levels were analyzed with bead-based multiplexed immunoassay. Arginase activity was measured with Chinard's method. RESULTS BAFF (p < .001) and sCD163 (p = .003) levels and arginase activity (p < .015) were higher in periodontitis patients compared to healthy controls. BAFF levels (p < .001) and arginase activity (p < .001) of periodontitis patients were reduced at 2 weeks posttreatment and continued to decrease up to 6 (p = .038) and 12 weeks (p = .024), respectively. The reduction of sCD163 levels became significant (p = .003) at 24 weeks posttreatment. CONCLUSIONS The decrease in salivary BAFF levels 2 weeks after periodontal treatment indicates a change in cell signaling toward limited B-cell activation. Decreasing arginase activity similarly reflects a significant reduction in inflammatory response. The reduction in sCD163 levels that are observed at 24 weeks may reflect a longstanding anti-inflammatory macrophage activation, given their multiple functions in immune response, inflammation, and healing.
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Affiliation(s)
- Mustafa Yilmaz
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
- Department of Periodontology, Faculty of Dentistry, Biruni University, Istanbul, Turkey
| | - Esra Demir
- Department of Periodontology, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Mervi Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
- Oral Health Care, Welfare Division, City of Turku, Turku, Finland
| | - Erhan Firatli
- Department of Periodontology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Vuokko Loimaranta
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Ulvi Kahraman Gürsoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
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Tatar M, Tufekci KK, Uslu S, Öner J. Expression of ADAMTS 1-4-8 and placental growth factor in ovary and oviduct during pregnancy in the first trimester. Anat Histol Embryol 2023. [PMID: 37014320 DOI: 10.1111/ahe.12922] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 03/24/2023] [Indexed: 04/05/2023]
Abstract
A Disintegrin and Metalloprotease Domains with Thrombospondins Motifs (ADAMTS), proteinases responsible for the destruction of extracellular matrix structures, have essential roles in the physiological and pathological processes of the female reproductive system, which is a dynamic structure. This study aimed to evaluate the immunoreactivity of placental growth factor (PLGF) and ADAMTS' (1, -4, and -8) in the ovary and oviduct during pregnancy in the first trimester. Our findings suggest a predominant role of ADAMTS-4 and ADAMTS-8 as proteoglycan-degrading enzymes from the ADAMTS-1 in the first trimester. As an angiogenic factor, PLGF showed more immunoreactivity than ADAMTS-1 in the ovary. This study provides the first evidence that ADAMTS-4 and ADAMTS-8 are more expressed in ovarian cells and follicles at different developmental stages during the first trimester of pregnancy than ADAMTS-1. Consequently, we suggest that ADAMTSs and PLGF act together and may exert specific effects on the formation, stabilisation, and function (or a combination thereof) of the matrix surrounding and protecting the follicles.
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Affiliation(s)
- Musa Tatar
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - Kıymet Kubra Tufekci
- Department of Histology and Embryology, Faculty of Medicine, Kastamonu University, Kastamonu, Turkey
| | - Sema Uslu
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Jale Öner
- Department of Basic Sciences of Histology and Embryology, Faculty of Dentistry, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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Gumus R, Capik O, Gundogdu B, Tatar A, Altinkaynak K, Ozdemir Tozlu O, Karatas OF. Low vitamin D and high cholesterol facilitate oral carcinogenesis in 4NQO-induced rat models via regulating glycolysis. Oral Dis 2023; 29:978-989. [PMID: 34954855 DOI: 10.1111/odi.14117] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Diets and nutritional habits are critical during carcinogenic processes, where a diet poor in fruits and vegetables and rich in meat and other foods of animal origin facilitates carcinogenesis. In this study, we aimed at investigating the possible involvement of vitamin D deficiency (VDD) and high cholesterol (HC) together in oral squamous cell carcinoma (OSCC) through modulating glycolysis. SUBJECTS AND METHODS We compared total cholesterol, LDL, HDL, triglycerides, LDH, and vitamin D levels of OSCC patients and control individuals. We used GEO datasets for gene set enrichment and 4-nitroquinoline-1-oxide induced in vivo oral carcinogenesis models to investigate contribution of VDD and HC during carcinogenesis via possible modulation of glycolysis. RESULTS We found that VDD and HC co-exist in OSCC patients, and deregulation of cholesterol and vitamin D levels results in enrichment of genes related to glycolysis. We, then, demonstrated that VDD and HC on their own and together facilitated the formation of larger tumors in 4NQO-induced in vivo cancer models, which are suppressed by glycolysis inhibition. CONCLUSION We reported collaborative contribution of HC and VDD during oral carcinogenesis, which is mainly carried out via altering energy metabolism in tumor cells.
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Affiliation(s)
- Rasim Gumus
- Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey
- Cancer Therapeutics Laboratory, High Technology Application and Research Center, Erzurum Technical University, Erzurum, Turkey
| | - Ozel Capik
- Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey
- Cancer Therapeutics Laboratory, High Technology Application and Research Center, Erzurum Technical University, Erzurum, Turkey
| | - Betul Gundogdu
- Department of Medical Pathology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Arzu Tatar
- Department of Otorhinolaryngology Diseases, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Konca Altinkaynak
- Department of Medical Biochemistry, School of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Ozlem Ozdemir Tozlu
- Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey
| | - Omer Faruk Karatas
- Molecular Biology and Genetics Department, Erzurum Technical University, Erzurum, Turkey
- Cancer Therapeutics Laboratory, High Technology Application and Research Center, Erzurum Technical University, Erzurum, Turkey
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Magnusson FC, Bahhar I. Helper innate lymphoid cells as cell therapy for cancer. Immunology 2023; 168:569-579. [PMID: 36288454 DOI: 10.1111/imm.13599] [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: 08/29/2022] [Accepted: 10/24/2022] [Indexed: 11/29/2022] Open
Abstract
Although the first cancer immunotherapy was given in the clinic more than a century ago, this line of treatment has remained more of a distant goal than a practical therapy due to limited understanding of the tumour microenvironment and the mechanisms at play within it, which led to failures of numerous clinical trials. However, in the last two decades, the immune checkpoint inhibitors (ICIs) and chimeric antigen receptor-T cell therapies have revolutionized the treatment of cancer and provided proof-of-concept that immunotherapies are a viable option. So far, immunotherapies have majoritarily focused on utilizing T cells; however, T cells are not autonomous but rather function as part of, and therefore are influenced by, a vast cast of other immune cells, including innate lymphoid cells (ILCs). Here, we summarize the role of ILCs, especially helper ILCs, in tumour development, progression and metastasis, as well as their potential to be used as immunotherapy for cancer. By reviewing the studies that used helper ILCs as adoptive cell therapy (ACT), we highlight the rationale behind considering these cells as novel ACT for cancer as well as identify open questions and areas for future research.
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Affiliation(s)
- Fay C Magnusson
- Cancer Research Center, Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul, Turkey
- Regenerative and Restorative Medicine Research Center (REMER), Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul, Turkey
- Department of Medical Microbiology, International School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Ilham Bahhar
- Cancer Research Center, Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul, Turkey
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Kargin T, Guldenoglu B, Gengec H, Toker M. The Importance of Morphological Knowledge in the Reading Comprehension Difficulties in a Highly Agglutinative Language: Evidence from Poor Comprehenders. J Psycholinguist Res 2023; 52:653-673. [PMID: 36306042 DOI: 10.1007/s10936-022-09916-1] [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] [Subscribe] [Scholar Register] [Accepted: 10/18/2022] [Indexed: 05/07/2023]
Abstract
This study examined the importance of morphological knowledge in the reading comprehension difficulties of poor comprehenders reading in a highly agglutinative language, Turkish. Participants were 56 students recruited from the second and third grades. In the assessment process, we applied three experimental paradigms addressing the participants' morphological and morpho-syntactical knowledge at the lexical and the supralexical levels. Data were collected in individual sessions and analyzed by running a series of GLM ANOVAs and calculating the Spearman-Brown correlation coefficient. Findings suggest morphological knowledge is an important indicator of reading comprehension difficulties in Turkish, a highly agglutinative language. The acquisition of adequate reading comprehension seems to be modified by particularities of the morphological knowledge.
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Affiliation(s)
- Tevhide Kargin
- Department of Special Education (TR), Faculty of Educational Sciences, Ankara University, Ankara, Turkey
| | - Birkan Guldenoglu
- Department of Special Education (TR), Faculty of Educational Sciences, Ankara University, Ankara, Turkey.
| | - Hilal Gengec
- Department of Special Education (TR), Kırıkkale University, Kırıkkale, Turkey
| | - Merih Toker
- Department of Special Education (TR), Faculty of Education, Hasan Kalyoncu University, Gaziantep, Turkey
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Yılmaz D, Kutlu M, Baki E. A comparison of the effect on pain management of two non-pharmacological methods used during administration of Pfizer-BioNTech COVID-19 vaccine (BNT162b2): A randomized controlled study. Jpn J Nurs Sci 2023:e12533. [PMID: 36999594 DOI: 10.1111/jjns.12533] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/19/2023] [Accepted: 03/01/2023] [Indexed: 04/01/2023]
Abstract
AIMS This study was conducted with the aim of examining the effect on pain intensity of the vibration technique applied at the injection site and squeezing a stress ball during the administration of Pfizer-BioNTech COVID-19 vaccination. METHODS This was a randomized controlled single-blind experimental study. The study included 120 adults who were randomly selected between July and November 2022. One experimental group (n = 40) received local vibration by means of a Buzzy® device, and the other (n = 40) were given a stress ball to squeeze. Routine vaccination procedure was performed with the control group (n = 40). The level of pain felt during the vaccination procedure was assessed on a visual analog scale. RESULTS The pain score of individuals during the vaccination procedure was found to be significantly lower in the vibration group than in the control group (P = .005) and the stress ball group (P = .036), but there was no significant difference between the control and stress ball groups (P = .851). Also, it was found that the variables of gender, age and body mass index did not affect the average pain intensity of individuals during the vaccination procedure. CONCLUSIONS It was found that local vibration applied by means of the Buzzy® device was effective in reducing the levels of pain relating to administration of the Pfizer-BioNTech COVID-19 vaccination. Nurses should think of the application of vibration as a choice in the management of pain relating to Pfizer-BioNTech COVID-19 vaccination.
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Affiliation(s)
- Dilek Yılmaz
- Department of Nursing, Bursa Uludağ University Faculty of Health Sciences, Bursa, 16059, Turkey
| | - Münevver Kutlu
- Department of Nursing, Bursa Uludağ University Faculty of Health Sciences, Bursa, 16059, Turkey
| | - Elmas Baki
- Bursa Uludağ University Hospital, Bursa, 16059, Turkey
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Demirdöğen BC, Demirkaya-Budak S. Influence of clusterin genetic variants on IOP elevation in pseudoexfoliation syndrome and pseudoexfoliative glaucoma in Turkish population. BMC Ophthalmol 2023; 23:117. [PMID: 36959561 PMCID: PMC10035213 DOI: 10.1186/s12886-023-02850-3] [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: 05/26/2022] [Accepted: 03/08/2023] [Indexed: 03/25/2023] Open
Abstract
PURPOSE Pseudoexfoliation syndrome (PEX) is distinguished by the deposition of fibrillary material within the aqueous humor and, in most cases, causes pseudoexfoliative glaucoma (PEG). The pathophysiologies of PEX and PEG are not completely explained. Therefore, this study aimed to assess the potential relationship between single nucleotide polymorphisms (SNPs) in the 3' untranslated region or introns of the clusterin gene (CLU) and the susceptibility to developing PEG or PEX. METHODS Two hundred and forty patients with PEX, 239 patients with PEG, and 240 control subjects were included. Genotyping was carried out using real-time PCR (rs2279590 C/T and rs1532278 C/T) or PCR followed by restriction endonuclease digestion (rs11136000 C/T and rs3087554 T/C). RESULTS The minor alleles or genotypes of CLU SNPs were not significantly associated with PEX or PEG. IOP values of patients with PEX carrying the homozygote polymorphic TT genotype were significantly elevated compared with PEX cases with the CT or CC genotypes for rs2279590, rs11136000 and rs1532278 (P = .009, P = .007, P = .010, respectively). CONCLUSION We present the first evidence that three SNPs in CLU gene (rs2279590, rs11136000 and rs1532278) might induce a rise in IOP in patients with PEX, conferring susceptibility to develop PEG.
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Affiliation(s)
- Birsen Can Demirdöğen
- Department of Biomedical Engineering, TOBB University of Economics and Technology, Söğütözü, 06560, Ankara, Turkey.
| | - Sinem Demirkaya-Budak
- Department of Biomedical Engineering, TOBB University of Economics and Technology, Söğütözü, 06560, Ankara, Turkey
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Bayram MB, Suviseshamuthu ES, Plow EB, Forrest GF, Yue GH. Aging-induced alterations in EEG spectral power associated with graded force motor tasks. Exp Brain Res 2023; 241:905-915. [PMID: 36808464 PMCID: PMC10037673 DOI: 10.1007/s00221-023-06572-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 02/12/2023] [Indexed: 02/23/2023]
Abstract
BACKGROUND It has been demonstrated that in young and healthy individuals, there is a strong association between the amplitude of EEG-derived motor activity-related cortical potential or EEG spectral power (ESP) and voluntary muscle force. This association suggests that the motor-related ESP may serve as an index of central nervous system function in controlling voluntary muscle activation Therefore, it may potentially be used as an objective marker to track changes in functional neuroplasticity due to neurological disorders, aging, and following rehabilitation therapies. To this end, the relationship between the band-specific ESP-combined spectral power of EEG oscillatory and aperiodic (noise) components-and voluntary elbow flexion (EF) force has been analyzed in elder and young individuals. METHODS 20 young (22.6 ± 0.87 year) and 28 elderly (74.79 ± 1.37 year) participants performed EF contractions at 20%, 50%, and 80% of maximum voluntary contraction (MVC) while high-density EEG signals were recorded. Both the absolute and relative ESPs were computed for the EEG frequency bands of interest. RESULTS The MVC force generated by the elderly was foreseeably lower than that of the young participants. Compared to young, the elderly cohort's (1) total ESP was significantly lower for the high (80% MVC) force task; (2) relative ESP in beta band was significantly elevated for the low and moderate (20% MVC and 50% MVC) force tasks; (3) absolute ESP failed to have a positive trend with force for EEG frequency bands of interest; and (4) beta-band relative ESP did not exhibit a significant decrease with increasing force levels. CONCLUSIONS As opposed to young subjects, the beta-band relative ESP in elderly did not significantly decrease with increasing EF force values. This observation suggests the use of beta-band relative ESP as a potential biomarker for age-related motor control degeneration.
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Affiliation(s)
- Mehmed Bugrahan Bayram
- Center for Mobility and Rehabilitation Engineering Research, Kessler Foundation, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA.
- Department of Biomedical Engineering, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Türkiye.
- Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Rutgers University, 185 W South Orange Ave, Newark, NJ, 07103, USA.
| | - Easter S Suviseshamuthu
- Center for Mobility and Rehabilitation Engineering Research, Kessler Foundation, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Rutgers University, 185 W South Orange Ave, Newark, NJ, 07103, USA
| | - Ela B Plow
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Gail F Forrest
- Center for Mobility and Rehabilitation Engineering Research, Kessler Foundation, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Rutgers University, 185 W South Orange Ave, Newark, NJ, 07103, USA
| | - Guang H Yue
- Center for Mobility and Rehabilitation Engineering Research, Kessler Foundation, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Rutgers University, 185 W South Orange Ave, Newark, NJ, 07103, USA
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
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Özgül B, Starbuck C, Polat MG, Abdeen R, Nester C. Inter and intra-examiner reliability of musculoskeletal ultrasound scanning of Anterior Talofibular Ligament and ankle muscles. J Ultrasound 2023; 26:137-146. [PMID: 36048331 PMCID: PMC10063751 DOI: 10.1007/s40477-022-00699-8] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/13/2022] [Indexed: 10/14/2022] Open
Abstract
PURPOSE Although the function of subjects with chronic ankle instability (CAI) has been examined, structural analysis by ultrasound scanning of the structures surrounding the ankle is limited. Before such structural comparisons between injured and uninjured people can be made it is important to investigate a reliable measurement protocol of structures possibly related to CAI. The aim of this study was to investigate the inter-intra examiner reliability of ultrasonic characteristics of selected structures in healthy subjects. METHODS Eleven healthy participants were assessed by an experienced sonographer and inexperienced certificated examiner. Ultrasound images were collected of the ATFL length and ankle muscles of gastrocnemius medialis (GM), tibialis anterior (TA) and peroneals. Thickness was measured for the muscles, whilst cross-sectional area (CSA) was measured for the peroneals. Inexperienced examiner repeated the measurements a week later. RESULTS Inter-examiner reliability was excellent for all structures (ICC3,1 = 0.91-0.98). Intra-examiner reliability shows excellent agreement for all structures (ICC3,1 = 0.92-0.98) except GM (good agreement) (ICC3,1 = 0.82). LoA, relative to structure size, ranged from 1.38 to 6.88% for inter-reliability and from 0.07 to 5.79% for intra-reliability. CONCLUSION This study shows a high level of inter-intra examiner reliability in measuring the structures possibly related to CAI. Future research has been planned to investigate the structural analysis in CAI by using applied MSUS protocol.
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Affiliation(s)
- Bahar Özgül
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Marmara University, Istanbul, Turkey.
| | - Chelsea Starbuck
- Applied Sports, Technology, Exercise, and Medicine Research Centre, Faculty of Science and Engineering, Swansea University, Swansea, UK
| | - Mine Gülden Polat
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Marmara University, Istanbul, Turkey
| | - Rawan Abdeen
- Faculty of Applied Medical Sciences, Diagnostic Radiology Technology Department, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Christopher Nester
- School of Health Sciences and Society, University of Salford, Manchester, UK
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ERSOY T, HOCAOGLU E. A 3-DoF robotic platform for the rehabilitation and assessment of reaction time and balance skills of MS patients. PLoS One 2023; 18:e0280505. [PMID: 36827290 PMCID: PMC9955682 DOI: 10.1371/journal.pone.0280505] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 01/02/2023] [Indexed: 02/25/2023] Open
Abstract
The central nervous system (CNS) exploits anticipatory (APAs) and compensatory (CPAs) postural adjustments to maintain the balance. The postural adjustments comprising stability of the center of mass (CoM) and the pressure distribution of the body influence each other if there is a lack of performance in either of them. Any predictable or sudden perturbation may pave the way for the divergence of CoM from equilibrium and inhomogeneous pressure distribution of the body. Such a situation is often observed in the daily lives of Multiple Sclerosis (MS) patients due to their poor APAs and CPAs and induces their falls. The way of minimizing the risk of falls in neurological patients is by utilizing perturbation-based rehabilitation, as it is efficient in the recovery of the balance disorder. In light of the findings, we present the design, implementation, and experimental evaluation of a novel 3 DoF parallel manipulator to treat the balance disorder of MS. The robotic platform allows angular motion of the ankle based on its anthropomorphic freedom. Moreover, the end-effector endowed with upper and lower platforms is designed to evaluate both the pressure distribution of each foot and the CoM of the body, respectively. Data gathered from the platforms are utilized to both evaluate the performance of the patients and used in high-level control of the robotic platform to regulate the difficulty level of tasks. In this study, kinematic and dynamic analyses of the robot are derived and validated in the simulation environment. Low-level control of the first prototype is also successfully implemented through the PID controller. The capacity of each platform is evaluated with a set of experiments considering the assessment of pressure distribution and CoM of the foot-like objects on the end-effector. The experimental results indicate that such a system well-address the need for balance skill training and assessment through the APAs and CPAs.
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Affiliation(s)
- Tugce ERSOY
- Living Robotics Laboratory, Istanbul Medipol University, Biomedical Engineering, Istanbul, Türkiye
- Ozyegin University, Mechanical Engineering, Istanbul, Türkiye
| | - Elif HOCAOGLU
- Living Robotics Laboratory, Istanbul Medipol University, Electrical and Electronics Engineering, Istanbul, Türkiye
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul, Türkiye
- * E-mail:
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Erdaş ÇB, Sümer E, Kibaroğlu S. Neurodegenerative diseases detection and grading using gait dynamics. Multimed Tools Appl 2023; 82:22925-22942. [PMID: 36846529 PMCID: PMC9938350 DOI: 10.1007/s11042-023-14461-7] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 04/27/2022] [Accepted: 01/31/2023] [Indexed: 06/01/2023]
Abstract
Detection of neurodegenerative diseases such as Parkinson's disease, Huntington's disease, Amyotrophic Lateral Sclerosis, and grading of these diseases' severity have high clinical significance. These tasks based on walking analysis stand out compared to other methods due to their simplicity and non-invasiveness. This study has emerged to realize an artificial intelligence-based disease detection and severity prediction system for neurodegenerative diseases using gait features obtained from gait signals. For the detection of the disease, the problem is divided into parts which are subgroups of 4 classes consisting of Parkinson's, Huntington's, Amyotrophic Lateral Sclerosis diseases, and the control group. In addition, the disease vs. control subgroup where all diseases are collected under a single label, the subgroups where each disease is separately against the control group. For disease severity grading, each disease was divided into subgroups and a solution was sought for the prediction problem mentioned by various machine and deep learning methods separately for each group. In this context, the resulting detection performance was measured by the metrics of Accuracy, F1 Score, Precision, and Recall while the resulting prediction performance was measured by the metrics such as R, R2, MAE, MedAE, MSE, and RMSE.
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Affiliation(s)
- Çağatay Berke Erdaş
- Department of Computer Engineering, Faculty of Engineering, Başkent University, Ankara, Turkey
| | - Emre Sümer
- Department of Computer Engineering, Faculty of Engineering, Başkent University, Ankara, Turkey
| | - Seda Kibaroğlu
- Department of Neurology, Faculty of Medicine, Başkent University, Ankara, Turkey
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35
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Turna O, Deveci Ozkan A, Guney Eskiler G, Baykal A, Ozten O, Yildirim F, Armutak EI, Kamanli AF, Lim HS, Kaleli S, Kasikci G, Yildiz SZ. Comparison of the anti-cancer activity of 5-aminolevulinic acid-mediated photodynamic therapy after continuous wave and pulse irradiation in different histological types of canine mammary sarcoma tumors. Lasers Med Sci 2023; 38:70. [PMID: 36780027 DOI: 10.1007/s10103-023-03732-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 02/05/2023] [Indexed: 02/14/2023]
Abstract
Canine mammary sarcoma tumors (CMST) are the most aggressive tumors with poor prognosis in dogs. Due to inadequate treatment options for CMST, recent studies have focused on alternative treatment strategies. We previously determined the optimized protocol of 5-ALA-based photodynamic therapy (PDT) in canine liposarcoma. However, its molecular mechanisms in the treatment of different histological types of CMST remain unclear.In this context, we, for the first time, assessed 5-aminolevulinic acid (5-ALA)-PDT-mediated anti-cancer activity and its molecular mechanism after continuous wave (CW) and pulse radiation (PR) on three different histological types (liposarcoma, chondrosarcoma, and osteosarcoma) of CMST cells by WST-1, Annexin V, ROS, acridine orange/propidium iodide staining, RT-PCR, and western blot analysis.Our findings showed that 5-ALA/PDT significantly suppressed the proliferation of CMST cells (p < 0.01) and induced apoptosis via increased ROS level and overexpression of Caspase-9 and Caspase-3 mRNA and cleaved protein levels in especially liposarcoma and chondrosarcoma cells following CW and PR irradiation at 9 J/cm2. However, the response of CMST cells to 5-ALA was different upon CW and PR irradiation due to differences in their origin.Collectively, our findings provided the first evidence that 5-ALA-based PDT could be used as an alternative treatment strategy, especially liposarcoma and chondrosarcoma. However, further in vitro and in vivo studies are required to elucidate the underlying molecular mechanism of the efficacy of 5-ALA in CMST cells at the molecular level.
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Affiliation(s)
- Ozge Turna
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Asuman Deveci Ozkan
- Department of Medical Biology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Gamze Guney Eskiler
- Department of Medical Biology, Faculty of Medicine, Sakarya University, Sakarya, Turkey.
| | - Aslihan Baykal
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ozge Ozten
- Department of Biomedical Engineering, Institute of Natural Sciences, Sakarya University of Applied Science, Sakarya, Turkey
| | - Funda Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Elif Ilkay Armutak
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ali Furkan Kamanli
- Department of Electric and Electronics Engineering, Faculty of Technology, Sakarya University of Applied Sciences, Sakarya, Turkey
| | - Hyun Soo Lim
- Department of Electric and Electronics Engineering, Faculty of Technology, Sakarya University of Applied Sciences, Sakarya, Turkey
| | - Suleyman Kaleli
- Department of Medical Biology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Guven Kasikci
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Salih Zeki Yildiz
- Department of Chemistry, Faculty of Science, Sakarya University, Sakarya, Turkey
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36
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Azimjonov J, Özmen A, Varan M. A vision-based real-time traffic flow monitoring system for road intersections. Multimed Tools Appl 2023; 82:1-20. [PMID: 36789012 PMCID: PMC9911956 DOI: 10.1007/s11042-023-14418-w] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 06/29/2022] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
In this study, a vision based real-time traffic flow monitoring system has been developed to extract statistics passes through the intersections. A novel object tracking and data association algorithms have been developed using the bounding-box properties to estimate the vehicle trajectories. Then, rich traffic flow information such as directional and total counting, instantaneous and average speed of vehicles are calculated from the predicted trajectories. During the study, various parameters that affect the accuracy of vision based systems are examined such as camera locations and angles that may cause occlusion or illusion problems. In the last part, sample video streams are processed using both Kalman filter and new centroid-based algorithm for comparative study. The results show that the new algorithm performs 9.18% better than Kalman filter approach in general.
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Affiliation(s)
- Jahongir Azimjonov
- School of Information and Communication Engineering, Chungbuk National University, Andijan State University, 28644 Cheongju-si, South Korea
| | - Ahmet Özmen
- Department of Software Engineering, Sakarya University, Serdivan, Sakarya, 54054 Turkey
| | - Metin Varan
- Department of Electrical and Electronics Engineering, Sakarya University of Applied Sciences, Serdivan, Sakarya, 54187 Turkey
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37
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Akalın AA, Dedekargınoğlu B, Choi SR, Han B, Ozcelikkale A. Predictive Design and Analysis of Drug Transport by Multiscale Computational Models Under Uncertainty. Pharm Res 2023; 40:501-523. [PMID: 35650448 PMCID: PMC9712595 DOI: 10.1007/s11095-022-03298-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 05/17/2022] [Indexed: 01/18/2023]
Abstract
Computational modeling of drug delivery is becoming an indispensable tool for advancing drug development pipeline, particularly in nanomedicine where a rational design strategy is ultimately sought. While numerous in silico models have been developed that can accurately describe nanoparticle interactions with the bioenvironment within prescribed length and time scales, predictive design of these drug carriers, dosages and treatment schemes will require advanced models that can simulate transport processes across multiple length and time scales from genomic to population levels. In order to address this problem, multiscale modeling efforts that integrate existing discrete and continuum modeling strategies have recently emerged. These multiscale approaches provide a promising direction for bottom-up in silico pipelines of drug design for delivery. However, there are remaining challenges in terms of model parametrization and validation in the presence of variability, introduced by multiple levels of heterogeneities in disease state. Parametrization based on physiologically relevant in vitro data from microphysiological systems as well as widespread adoption of uncertainty quantification and sensitivity analysis will help address these challenges.
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Affiliation(s)
- Ali Aykut Akalın
- Department of Mechanical Engineering, Middle East Technical University, 06531, Ankara, Turkey
| | - Barış Dedekargınoğlu
- Department of Mechanical Engineering, Middle East Technical University, 06531, Ankara, Turkey
| | - Sae Rome Choi
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, Indiana, 47907, USA
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, Indiana, 47907, USA.
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA.
- Center for Cancer Research, Purdue University, 585 Purdue Mall, West Lafayette, Indiana, 47907, USA.
| | - Altug Ozcelikkale
- Department of Mechanical Engineering, Middle East Technical University, 06531, Ankara, Turkey.
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38
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Demirdogen A. Before Privatization There was Its Impact: Sugar Factories in Turkey. Rev Ind Organ 2023; 62:199-218. [PMID: 36712461 PMCID: PMC9873216 DOI: 10.1007/s11151-023-09894-1] [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] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
This paper estimates the effect of a sugar-factory privatization policy on sugar beet acreages in Turkey. It finds that sugar beet acreages decreased by more than 15% due to the 2018 privatization of several sugar factories. Farmers decreased their contracted acreages in the middle of 2018, after the privatization announcement but before the actual transfer of the institutions. Production continued to decrease in the following years for the farms that were in the "catchment area" of the privatized factory group. However, for the farms that were in the area of the factories in which privatization was subsequently canceled, the negative effect of the announcement vanished. The results show that privatization policies can significantly affect markets even before the transfer of the institutions to the private sector.
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Affiliation(s)
- Alper Demirdogen
- Department of Agricultural Economics, Ankara University, Ankara, Turkey
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39
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Unay S, Bilgin MD. Investigation of effects of quercetin and low-level laser therapy in cisplatin-induced in vitro peripheral neuropathy model. Lasers Med Sci 2023; 38:49. [PMID: 36689023 DOI: 10.1007/s10103-023-03718-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/16/2023] [Indexed: 01/24/2023]
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) is one of the dose-dependent side effects of cisplatin. The loss of sensory neurons is observed in CIPN. There are many methods to minimalize CIPN symptoms such as pharmacological agents and photobiostimulation but the mechanisms of these methods are unclear. Our study is aimed at determining the effects of quercetin and low-level laser therapy (LLLT) in undifferentiated and nerve growth factor-differentiated PC12 cells in cisplatin-induced peripheral neuropathy. PC12 cells with cisplatin were co-treated with quercetin and LLLT (diode pumped all-solid-state laser, 670 nm, output 500 mW, and the laser beam surface area was 1.96 cm2). The effects of quercetin and LLLT on GAP-43 and Synapsin I expressions were analyzed by real-time PCR, cell viability was assessed by MTT assay, Annexin and dead assay measured the induction of apoptosis, the alterations in mitopotential were assessed by mitopotential assay, and lactate dehydrogenase activity in cells was analyzed. All experiment data were analyzed by the Tukey test and applied as a post hoc test, and statistical evaluation was made. Our results indicated that cisplatin increased apoptosis (24,210 ± 2189, 46,504 ± 8246) cells, mitochondrial dysfunction (44,312 ± 0.751, 68,788 ± 1271), and LDH activity (62,821 ± 8245, 87,838 ± 8116). Furthermore, it decreased cell viability (42,447 ± 1780, 36,140 ± 3682) and inhibited GAP-43 and Synapsin I genes in undifferentiated and differentiated PC12 cells. However, apoptosis, the alterations in mitopotential, and lactate dehydrogenase activity decreased by applications of quercetin and LLLT. It has been recommended that quercetin and low-level laser therapy roles on cisplatin-induced peripheral neuropathy should be investigated in vivo, and the relationship between quercetin and low-level laser therapy should be molecular.
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Affiliation(s)
- Simge Unay
- Department of Biophysics, Healthy Science Institute, Aydin Adnan Menderes University, TR-09100, Aydin, Turkey
- Present address: Department of Biophysics, School of Medicine, Lokman Hekim University, TR-06510, Ankara, Turkey
| | - Mehmet Dincer Bilgin
- Department of Biophysics, School of Medicine, Aydin Adnan Menderes University, 09010, Aydin, Turkey.
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40
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Aşkın G, Saltık İ, Boz TE, Urgen BA. Gendered Actions with a Genderless Robot: Gender Attribution to Humanoid Robots in Action. Int J Soc Robot 2023; 15:1-17. [PMID: 36694634 PMCID: PMC9852799 DOI: 10.1007/s12369-022-00964-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2022] [Indexed: 01/22/2023]
Abstract
The present study aims to investigate how gender stereotypes affect people's gender attribution to social robots. To this end, we examined whether a robot can be assigned a gender depending on a performed action. The study consists of 3 stages. In the first stage, we determined masculine and feminine actions by a survey conducted with 54 participants. In the second stage, we selected a gender-neutral robot by having 76 participants rate several robot stimuli in the masculine-feminine spectrum. In the third stage, we created short animation videos in which the gender-neutral robot determined in stage two performed the masculine and feminine actions determined in stage one. We then asked 102 participants to evaluate the robot in the videos in the masculine-feminine spectrum. We asked them to rate the videos according to their own view (self-view) and how they thought society would evaluate them (society-view). We also used the Socialization of Gender Norms Scale (SGNS) to identify individual differences in gender attribution to social robots. We found the main effect of action category (feminine vs. masculine) on both self-view reports and society-view reports suggesting that a neutral robot was reported to be feminine if it performed feminine actions and masculine if it performed masculine actions. However, society-view reports were more pronounced than the self-view reports: when the neutral robot performed masculine actions, it was found to be more masculine in the society-view reports than the self-view reports; and when it performs feminine actions, it was found to be more feminine in the society-view reports than the self-view reports. In addition, the SGNS predicted the society-view reports (for feminine actions) but not the self-view reports. In sum, our study suggests that people can attribute gender to social robots depending on the task they perform.
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Affiliation(s)
- Gaye Aşkın
- Department of Psychology, Bilkent University, Ankara, Türkiye
| | - İmge Saltık
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Türkiye
| | - Tuğçe Elver Boz
- Interior Architecture and Environmental Design, Bilkent University, Ankara, Türkiye
| | - Burcu A. Urgen
- Department of Psychology, Bilkent University, Ankara, Türkiye
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Türkiye
- Aysel Sabuncu Brain Research Center, National Magnetic Resonance Research Center (UMRAM), Bilkent University, Ankara, Türkiye
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41
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Kiratli OS, Ertan SA. When to Not Respond in Kind? Individuals' Expectations of the Future and Their Support for Reciprocity in Foreign Policy. Polit Behav 2023:1-23. [PMID: 36684059 PMCID: PMC9841930 DOI: 10.1007/s11109-023-09857-y] [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] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
This paper investigates if individuals' negative assessments of the future drive micro-level reluctance for international cooperation and reciprocal behavior, a core principle of multilateralism. To test our theoretical expectations, we field online survey experiments on a sample of over 3000 respondents in the US and Turkey in October-November 2020. The experimental results show that on average, individuals are fairly sensitive to target countries' policy actions and are inclined to reciprocate when contemplating whether to increase contributions to UN or consent to bilateral trade liberalization. Yet, further analyses concur that individual inclinations to reciprocate are substantially moderated by their future expectations. Specifically, individuals who are more pessimistic about their material prospects remain fairly indifferent to the positive actions of other countries, but are more likely to penalize negative foreign policy actions by reciprocating in kind. Supplementary Information The online version contains supplementary material available at 10.1007/s11109-023-09857-y.
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Affiliation(s)
- Osman Sabri Kiratli
- International Trade Department, Bogazici University, Istanbul, Turkey
- WZB, Berlin, Germany
| | - Sabri Arhan Ertan
- International Trade Department, Bogazici University, Istanbul, Turkey
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42
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Alan E, Albayrak G, Sevin G, Yetik-Anacak G, Baykan S. Relaxation mechanisms of chloroform root extracts of Prangos heyniae and Prangos uechtritzii on mouse corpus cavernosum. Andrologia 2022; 54:e14604. [PMID: 36163644 DOI: 10.1111/and.14604] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022] Open
Abstract
Erectile dysfunction (ED) is the inability to achieve/maintain an erection. Because of the side effects, interactions, or ineffectiveness of currently used drugs, novel drug discovery studies are ongoing. The roots of Turkish endemic plants Prangos uechtritzii and Prangos heyniae are traditionally used as aphrodisiacs in Anatolia and contain coumarin-like relaxant compounds. This study aims to reveal the relaxant effect mechanisms of chloroform root extracts of P. heyniae (Ph-CE) and P. uechtritzii (Pu-CE). Isolated organ bath experiments were performed on Swiss albino mouse corpus cavernosum by DMT strip myograph. Relaxant responses to extract (10-7 -10-4 g/ml) were obtained in the presence/absence of NO and H2 S synthesis inhibitors nitro-l-arginine methyl ester (l-NAME, 100 μM) and aminooxyacetic acid (AOAA, 10 mM) respectively. Sodium nitroprusside (SNP, 10-9 to 10-4 M) and Na2 S (10-6 to 3 × 10-3 M)-induced relaxations and CaCl2 (10-6 to 10-4 M), KCl (10-2.1 to 10-0.9 M) and phenylephrine (3 × 10-8 to 3 × 10-5 M)-induced contractions were taken in the presence/absence of the extracts (10-4 g/ml). Relaxations induced by Ph-CE but not by Pu-CE were inhibited in the presence of l-NAME and AOAA. Ph-CE increased Na2 S- and SNP-induced relaxations. Ph-CE and Pu-CE decreased the contractions of KCl, phenylephrine, and CaCl2 . It was concluded that NO and H2 S synthesis/downstream mechanisms play roles in relaxations of Ph-CE but not in Pu-CE-induced relaxations. Inhibition of calcium influx appears to be involved in the relaxant effect of Ph-CE and Pu-CE. Since the extracts act directly by relaxing smooth muscle or through H2 S as well as NO, they may be a potential therapeutic agent in diseases such as ED where the bioavailability of NO is impaired.
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Affiliation(s)
- Elif Alan
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Türkiye
| | - Gokay Albayrak
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Ege University, Izmir, Türkiye
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Izmir Katip Çelebi University, Izmir, Türkiye
| | - Gulnur Sevin
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Türkiye
| | - Gunay Yetik-Anacak
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Türkiye
| | - Sura Baykan
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Ege University, Izmir, Türkiye
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43
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Junayed MS, Islam MB. Automated Physical Distance Estimation and Crowd Monitoring Through Surveillance Video. SN Comput Sci 2022; 4:67. [PMID: 36467857 PMCID: PMC9702862 DOI: 10.1007/s42979-022-01480-8] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
The contagious Corona Virus (COVID-19) transmission can be reduced by following and maintaining physical distancing (also known as COVID-19 social distance). The World Health Organisation (WHO) recommends preventing COVID-19 from spreading in public areas. On the other hand, people may not be maintaining the required 2-m physical distance as a mandated safety precaution in shopping malls and public places. The spread of the fatal disease may be slowed by an active monitoring system suitable for identifying distances between people and alerting them. This paper introduced a deep learning-based system for automatically detecting physical distance using video from security cameras. The proposed system introduced the TH-YOLOv5 for object detection and classification and Deepsort for tracking the detected people using bounding boxes from the video. TH-YOLOv5 included another prediction head to identify objects of varying sizes. The original prediction heads are then replaced with Transformer Heads (TH) to investigate the prediction capability of the self-attention mechanism. Then, we include the convolutional block attention model (CBAM) to identify attention areas in settings with dense objects. Pairwise L2 vectorized normalization was utilized to generate a three-dimensional feature space for tracking physical distances and the violation index, determining the number of individuals who follow the distance rules. We use the MS COCO and HumanCrowd, CityPersons, and Oxford Town Centre (OTC) data sets for training and testing. Experimental results demonstrate that the proposed system obtained a weighted mAP score of 89.5% and an FPS score of 29; both are computationally comparable.
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Affiliation(s)
- Masum Shah Junayed
- Department of Computer Engineering, Bahcesehir University, Istanbul, 34349 Turkey
- Department of Computer Science and Engineering, Daffodil International University, Dhaka, 1207 Bangladesh
| | - Md Baharul Islam
- Department of Computer Engineering, Bahcesehir University, Istanbul, 34349 Turkey
- Department of Computer Science and Engineering, Daffodil International University, Dhaka, 1207 Bangladesh
- College of Data Science and Engineering, American University of Malta, Bomla, 1013 Malta
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44
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Acar M, Solak K, Yildiz S, Unver Y, Mavi A. Comparative heating efficiency and cytotoxicity of magnetic silica nanoparticles for magnetic hyperthermia treatment on human breast cancer cells. 3 Biotech 2022; 12:313. [PMID: 36276464 PMCID: PMC9547765 DOI: 10.1007/s13205-022-03377-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 09/17/2022] [Indexed: 11/01/2022] Open
Abstract
Magnetic hyperthermia (MHT) is a promising treatment for a variety of cancers due to its ability to increase the sensitivity of cells to other treatments, such as chemotherapy. Superparamagnetic nanoparticles (MNPs) were used for MHT treatment due to their heat generation ability under an AC magnetic field (AMF). In this study, iron oxide and zinc-doped iron oxide MNPs were produced and modified with silica to obtain eleven different types (MSNP-I to -XI) of magnetic silica nanoparticles (MSNPs). The MSNPs which show the highest heating capacity were selected to investigate their MHT ability on non-tumourigenic MCF-10A and tumourigenic MCF-7 cell lines. The cytotoxicity results indicated that the size, the content of the magnetic core and silica coating thickness were important in the heating capacity of MSNPs under AMF. After MHT treatment, selected MSNPs showed limited cytotoxicity on MCF-10A, but significant cell death on MCF-7. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03377-y.
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Affiliation(s)
- Melek Acar
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Kubra Solak
- Department of Nanoscience and Nanoengineering, Graduate School of Natural and Applied Science, Atatürk University, Erzurum, Turkey
| | - Seyda Yildiz
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Yagmur Unver
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Ahmet Mavi
- Department of Nanoscience and Nanoengineering, Graduate School of Natural and Applied Science, Atatürk University, Erzurum, Turkey
- Department of Chemistry Education, Kazim Karabekir Faculty of Education, Atatürk University, Erzurum, Turkey
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45
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Altay HY, Ozdemir F, Afghah F, Kilinc Z, Ahmadian M, Tschopp M, Agca C. Gene regulatory and gene editing tools and their applications for retinal diseases and neuroprotection: From proof-of-concept to clinical trial. Front Neurosci 2022; 16:924917. [PMID: 36340792 PMCID: PMC9630553 DOI: 10.3389/fnins.2022.924917] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 04/20/2022] [Accepted: 09/26/2022] [Indexed: 09/11/2023] Open
Abstract
Gene editing and gene regulatory fields are continuously developing new and safer tools that move beyond the initial CRISPR/Cas9 technology. As more advanced applications are emerging, it becomes crucial to understand and establish more complex gene regulatory and editing tools for efficient gene therapy applications. Ophthalmology is one of the leading fields in gene therapy applications with more than 90 clinical trials and numerous proof-of-concept studies. The majority of clinical trials are gene replacement therapies that are ideal for monogenic diseases. Despite Luxturna's clinical success, there are still several limitations to gene replacement therapies including the size of the target gene, the choice of the promoter as well as the pathogenic alleles. Therefore, further attempts to employ novel gene regulatory and gene editing applications are crucial to targeting retinal diseases that have not been possible with the existing approaches. CRISPR-Cas9 technology opened up the door for corrective gene therapies with its gene editing properties. Advancements in CRISPR-Cas9-associated tools including base modifiers and prime editing already improved the efficiency and safety profile of base editing approaches. While base editing is a highly promising effort, gene regulatory approaches that do not interfere with genomic changes are also becoming available as safer alternatives. Antisense oligonucleotides are one of the most commonly used approaches for correcting splicing defects or eliminating mutant mRNA. More complex gene regulatory methodologies like artificial transcription factors are also another developing field that allows targeting haploinsufficiency conditions, functionally equivalent genes, and multiplex gene regulation. In this review, we summarized the novel gene editing and gene regulatory technologies and highlighted recent translational progress, potential applications, and limitations with a focus on retinal diseases.
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Affiliation(s)
- Halit Yusuf Altay
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
| | - Fatma Ozdemir
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
| | - Ferdows Afghah
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
| | - Zeynep Kilinc
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
| | - Mehri Ahmadian
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
| | - Markus Tschopp
- Department of Ophthalmology, Cantonal Hospital Aarau, Aarau, Switzerland
- Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cavit Agca
- Molecular Biology, Genetics and Bioengineering Program, Sabanci University, Istanbul, Turkey
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul, Turkey
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46
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Abas BI, Demirbolat GM, Cevik O. Wharton jelly-derived mesenchymal stem cell exosomes induce apoptosis and suppress EMT signaling in cervical cancer cells as an effective drug carrier system of paclitaxel. PLoS One 2022; 17:e0274607. [PMID: 36108271 PMCID: PMC9477505 DOI: 10.1371/journal.pone.0274607] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
Mesenchymal stem cells can be obtained and multiplied from various sources and have a very high capacity to release exosomes. Exosomes are nano-sized extracellular vesicles containing biological signaling molecules. This study aimed to determine the effect of MSC-derived exosomes as a drug delivery system for paclitaxel in cervical cancer cells. In this study, human MSC were isolated from wharton jelly of umbilical cord tissue (WJ-MSC), and cells were characterized by CD44, CD90, CD105, and CD34 staining. Exosomes were released in WJ-MSC cells with serum-starved conditions for 48 hours, and particle sizes and structures were examined with zeta-sizer and TEM. In addition, exosomes CD9, CD63, and CD81 markers were checked by western blot. Paclitaxel was loaded into exosomes (Exo-PAC) by electroporation and then incubated with Hela cervical cancer cells for 24 hours. TGF-β, SMAD, Snail, Slug, β-catenin, Notch, Caspase-3, Caspase-9, Bax, Bcl-2 protein and gene expression levels were analyzed in Hela cells. As a result, low concentration Exo-PAC induced apoptosis, and suppressed epithelial-mesenchymal transition proteins in Hela cells. In this study, it has been demonstrated that WJ-MSCs can be used as drug delivery systems for cervical cancer if exosomes are produced scalably in the future.
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Affiliation(s)
- Burcin Irem Abas
- Department of Medicinal Biochemistry, School of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Gulen Melike Demirbolat
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Acibadem University, Istanbul, Turkey
| | - Ozge Cevik
- Department of Medicinal Biochemistry, School of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
- * E-mail:
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47
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Gok M, Madrer N, Zorbaz T, Bennett ER, Greenberg D, Bennett DA, Soreq H. Altered levels of variant cholinesterase transcripts contribute to the imbalanced cholinergic signaling in Alzheimer's and Parkinson's disease. Front Mol Neurosci 2022; 15:941467. [PMID: 36117917 PMCID: PMC9479005 DOI: 10.3389/fnmol.2022.941467] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Acetylcholinesterase and butyrylcholinesterase (AChE and BChE) are involved in modulating cholinergic signaling, but their roles in Alzheimer's and Parkinson's diseases (AD and PD) remain unclear. We identified a higher frequency of the functionally impaired BCHE-K variant (rs1803274) in AD and PD compared to controls and lower than in the GTEx dataset of healthy individuals (n = 651); in comparison, the prevalence of the 5'-UTR (rs1126680) and intron 2 (rs55781031) single-nucleotide polymorphisms (SNPs) of BCHE and ACHE's 3'-UTR (rs17228616) which disrupt AChE mRNA targeting by miR-608 remained unchanged. qPCR validations confirmed lower levels of the dominant splice variant encoding the "synaptic" membrane-bound ACHE-S in human post-mortem superior temporal gyrus samples from AD and in substantia nigra (but not amygdala) samples from PD patients (n = 79, n = 67) compared to controls, potentially reflecting region-specific loss of cholinergic neurons. In contradistinction, the non-dominant "readthrough" AChE-R mRNA variant encoding for soluble AChE was elevated (p < 0.05) in the AD superior temporal gyrus and the PD amygdala, but not in the neuron-deprived substantia nigra. Elevated levels of BChE (p < 0.001) were seen in AD superior temporal gyrus. Finally, all three ACHE splice variants, AChE-S, AChE-R, and N-extended AChE, were elevated in cholinergic-differentiated human neuroblastoma cells, with exposure to the oxidative stress agent paraquat strongly downregulating AChE-S and BChE, inverse to their upregulation under exposure to the antioxidant simvastatin. The multi-leveled changes in cholinesterase balance highlight the role of post-transcriptional regulation in neurodegeneration. (235).
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Affiliation(s)
- Muslum Gok
- Department of Biochemistry, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Nimrod Madrer
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Tamara Zorbaz
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Biochemistry and Organic Analytical Chemistry Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Estelle R. Bennett
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - David Greenberg
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - David A. Bennett
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
| | - Hermona Soreq
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel
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Coskun A, Yegen C, Arbak S, Attaallah W, Gunal O, Elmas MA, Ucal Y, Can O, Baş B, Yildirim Z, Seckin I, Demirci S, Serteser M, Ozpinar A, Belce A, Basdemir G, Moldur DE, Derelioglu EI, Yozgatli TK, Erdemgil Y, Unsal I. Melatonin in preservation solutions prevents ischemic injury in rat kidneys. PLoS One 2022; 17:e0273921. [PMID: 36044512 PMCID: PMC9432748 DOI: 10.1371/journal.pone.0273921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/17/2022] [Indexed: 11/18/2022] Open
Abstract
Transplantation is lifesaving and the most effective treatment for end-stage organ failure. The transplantation success depends on the functional preservation of organs prior to transplantation. Currently, the University of Wisconsin (UW) and histidine-tryptophan-ketoglutarate (HTK) are the most commonly used preservation solutions. Despite intensive efforts, the functional preservation of solid organs prior to transplantation is limited to hours. In this study, we modified the UW solution containing components from both the UW and HTK solutions and analyzed their tissue-protective effect against ischemic injury. The composition of the UW solution was changed by reducing hydroxyethyl starch concentration and adding Histidine/Histidine-HCl which is the main component of HTK solution. Additionally, the preservation solutions were supplemented with melatonin and glucosamine. The protective effects of the preservation solutions were assessed by biochemical and microscopical analysis at 2, 10, 24, and 72 h after preserving the rat kidneys with static cold storage. Lactate dehydrogenase (LDH) activity in preservation solutions was measured at 2, 10, 24, and 72. It was not detectable at 2 h of preservation in all groups and 10 h of preservation in modified UW+melatonin (mUW-m) and modified UW+glucosamine (mUW-g) groups. At the 72nd hour, the lowest LDH activity (0.91 IU/g (0.63–1.17)) was measured in the mUW-m group. In comparison to the UW group, histopathological damage score was low in modified UW (mUW), mUW-m, and mUW-g groups at 10, 24, and 72 hours. The mUW-m solution at low temperature was an effective and suitable solution to protect renal tissue for up to 72 h.
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Affiliation(s)
- Abdurrahman Coskun
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
- * E-mail:
| | - Cumhur Yegen
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Serap Arbak
- Department of Histology and Embryology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Wafi Attaallah
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Omer Gunal
- Department of General Surgery, Marmara University, School of Medicine, Istanbul, Turkey
| | - Merve Acikel Elmas
- Department of Histology and Embryology, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Yasemin Ucal
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ozge Can
- Faculty of Engineering, Department of Medical Engineering, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Banu Baş
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Zeynep Yildirim
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ismail Seckin
- Department of Histology and Embryology, Istanbul University Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey
| | - Sibel Demirci
- Department of Histology and Embryology, Biruni University, School of Medicine, Istanbul, Turkey
| | - Mustafa Serteser
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
| | - Aysel Ozpinar
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ahmet Belce
- Department of Medical Biochemistry, Biruni University, School of Medicine, Istanbul, Turkey
| | - Gulcin Basdemir
- Department of Pathology, Memorial Hospital, Istanbul, Turkey
| | - Derya Emel Moldur
- Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | | | | | - Yigit Erdemgil
- Department of Medical Biochemistry, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Turkey
| | - Ibrahim Unsal
- Acibadem Labmed Clinical Laboratories, Istanbul, Turkey
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Bodurlar Y, Caliskan M. Inhibitory activity of soybean (Glycine max L. Merr.) Cell Culture Extract on tyrosinase activity and melanin formation in alpha-melanocyte stimulating Hormone-Induced B16-F10 melanoma cells. Mol Biol Rep 2022; 49:7827-7836. [PMID: 35733058 DOI: 10.1007/s11033-022-07608-6] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Hyperpigmentation, which causes excessive melanin synthesis and accumulation, is an important issue in the cosmetic industry. Since compounds developed against hyperpigmentation often come with side effects such as skin irritation and contact dermatitis, new studies focus on the use of natural agents that have no side effects. METHODS AND RESULTS In this study, it was found that the effects of soybean cell culture extract (SCE) on alpha-melanocyte-stimulating hormone (α-MSH) induced melanogenesis in B16-F10 murine melanoma cells. The cells were incubated with SCE for 48 h after treatment with α‑MSH for 24 h to analysis the melanin content, cellular tyrosinase activity, and gene and protein expression. SCE at 1 mg/mL decreased melanin content and tyrosinase activity by 34% and 24%, respectively, compared to the α-MSH-treated group, which did not decrease cell viability. In addition, SCE (1 mg/mL) downregulated the expression of tyrosinase (TYR), tyrosinase-related protein (TRP)-1, tyrosinase-related protein (TRP)-2, and microphthalmia-associated transcription factor (MITF) genes 1.5-, 1.5-, 2-, and 2-fold, respectively. Furthermore, SCE inhibited the expression of TYR, TRP1, and TRP2 by decreasing the expression of MITF, as shown in a western blot assay. CONCLUSIONS This study suggests that SCE reveals dose-dependent inhibition of melanin synthesis through the suppression of tyrosinase activity as well as molecular levels of TYR, TRP1, TRP2, and MITF in B16-F10 murine melanoma cells. Therefore, SCE has the potential to be an effective and natural skin-whitening agent for application in the cosmetic industry.
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Affiliation(s)
- Yildiz Bodurlar
- R&D department, ACTV Biotechnology Lab. Ind. and Trade Inc. Comp, 34197, Istanbul, Turkey.
| | - Mahmut Caliskan
- Faculty of Sciences, Department of Biology, Biotechnology Division, Istanbul University, 34452, Istanbul, Turkey
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50
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Batman U, Deretic J, Firat-Karalar EN. The ciliopathy protein CCDC66 controls mitotic progression and cytokinesis by promoting microtubule nucleation and organization. PLoS Biol 2022; 20:e3001708. [PMID: 35849559 PMCID: PMC9333452 DOI: 10.1371/journal.pbio.3001708] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 07/28/2022] [Accepted: 06/14/2022] [Indexed: 11/23/2022] Open
Abstract
Precise spatiotemporal control of microtubule nucleation and organization is critical for faithful segregation of cytoplasmic and genetic material during cell division and signaling via the primary cilium in quiescent cells. Microtubule-associated proteins (MAPs) govern assembly, maintenance, and remodeling of diverse microtubule arrays. While a set of conserved MAPs are only active during cell division, an emerging group of MAPs acts as dual regulators in dividing and nondividing cells. Here, we elucidated the nonciliary functions and molecular mechanism of action of the ciliopathy-linked protein CCDC66, which we previously characterized as a regulator of ciliogenesis in quiescent cells. We showed that CCDC66 dynamically localizes to the centrosomes, the bipolar spindle, the spindle midzone, the central spindle, and the midbody in dividing cells and interacts with the core machinery of centrosome maturation and MAPs involved in cell division. Loss-of-function experiments revealed its functions during mitotic progression and cytokinesis. Specifically, CCDC66 depletion resulted in defective spindle assembly and orientation, kinetochore fiber stability, chromosome alignment in metaphase as well as central spindle and midbody assembly and organization in anaphase and cytokinesis. Notably, CCDC66 regulates mitotic microtubule nucleation via noncentrosomal and centrosomal pathways via recruitment of gamma-tubulin to the centrosomes and the spindle. Additionally, CCDC66 bundles microtubules in vitro and in cells by its C-terminal microtubule-binding domain. Phenotypic rescue experiments showed that the microtubule and centrosome-associated pools of CCDC66 individually or cooperatively mediate its mitotic and cytokinetic functions. Collectively, our findings identify CCDC66 as a multifaceted regulator of the nucleation and organization of the diverse mitotic and cytokinetic microtubule arrays and provide new insight into nonciliary defects that underlie ciliopathies. The ciliopathy-linked protein CCDC66 is only known for its ciliary functions. This study reveals that CCDC66 also has extensive non-ciliary functions, localizing to the spindle poles, spindle midzone, central spindle and midbody throughout cell division, where it regulates mitosis and cytokinesis by promoting microtubule nucleation and organization.
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Affiliation(s)
- Umut Batman
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
| | - Jovana Deretic
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
| | - Elif Nur Firat-Karalar
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey
- Koç University School of Medicine, Istanbul, Turkey
- * E-mail:
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