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Tugrul F, Akin Geyik G, Yalinbaş Kaya B, Peker Cengiz B, Karuk Elmas SN, Yilmaz I, Arslan FN. A biospectroscopic approach toward colorectal cancer diagnosis from bodily fluid samples via ATR-MIR spectroscopy combined with multivariate data analysis. Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123342. [PMID: 37688884 DOI: 10.1016/j.saa.2023.123342] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023]
Abstract
In this study, a biospectroscopic approach was reported for the detection of spectral changes and biomarkers for the diagnosis of colorectal cancer (CC) cases from different bodily fluids (blood plasma, blood serum, saliva and colonoscopy disinfection/wash fluids) by using attenuated total reflection-mid infrared (ATR-MIR) spectroscopy. To recognize the molecular level changes in the spectral characteristics of CC and their healthy/control (CH) groups, different multivariate data analyses (HCA, LDA, PCA and SIMCA) were successfully performed over the data of ATR-MIR spectroscopy. Two hundred specimens were characterized in detail over the data of spectral regions (4000-650 cm-1 and regions V-XXII). The findings revealed that significant changes were clearly observed in the concentrations of lipid, protein, nucleic acid and carbohydrate biomolecules for cancer cases based upon their necessity to overcome energy requirements. Supervised multivariate data methodology SIMCA, presented an excellent classification for the studied groups; similarly 100% of the specimens from different bodily fluids were correctly classified by supervised methodology LDA. As a result, the developed ATR-MIR methodology for the classification of CC and their healthy groups highlighted a rapid cancer diagnosis approach from different bodily fluids; therefore, it could be guide to make well decision before histopathological assessment and to screen CC populations existing in society.
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Affiliation(s)
- Fuzuli Tugrul
- Eskişehir City Hospital, Clinic of Radiation Oncology, 26080 Eskisehir, Turkey
| | - Gonul Akin Geyik
- Karamanoglu Mehmetbey University, K.O. Science Faculty, Department of Chemistry, 70100 Karaman, Turkey
| | | | - Betul Peker Cengiz
- Eskişehir Yunus Emre State Hospital, Clinic of Medical Pathology, 26190 Eskisehir, Turkey
| | - Sukriye Nihan Karuk Elmas
- Karamanoglu Mehmetbey University, K.O. Science Faculty, Department of Chemistry, 70100 Karaman, Turkey; Istanbul University-Cerrahpaşa, Pharmacy Faculty, Department of Analytical Chemistry, 34500 Istanbul, Turkey
| | - Ibrahim Yilmaz
- Karamanoglu Mehmetbey University, K.O. Science Faculty, Department of Chemistry, 70100 Karaman, Turkey.
| | - Fatma Nur Arslan
- Karamanoglu Mehmetbey University, K.O. Science Faculty, Department of Chemistry, 70100 Karaman, Turkey.
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Akarsu SA, Gungor IH, Acisu TC, Cakir A, Guler E, Koca RH, Yilmaz I, Sonmez M, Gur S, Turk G, Kaya SO, Yuce A. Determination of the cryoprotective effect of n-methylacetamide in rabbit semen. Cryo Letters 2023; 44:378-384. [PMID: 38311932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
BACKGROUND Amides are low molecular weight cryoprotectants. N-methylacetamide (MA) is one of the cryoprotectant agents in this group. OBJECTIVE To investigate the cryoprotective effect of MA in rabbit semen. MATERIALS AND METHODS For this purpose, six ejaculates from six New Zealand rabbits were collected and pooled using an artificial vagina. Pooled semen was divided into four equal parts and diluted with TCG+ egg yolk. CPA was added to form the following groups: Control with 6% DMSO; Group 1 with 1% MA; Group 2 with 2% MA; and Group 3 with 3% MA. After the addition of CPA, the semen eqilibration procedure was started. Sperm were then drawn into 0.25 mL straws, frozen by automatic semen freezing and stored in a liquid nitrogen container. Pipettes were thawed after 24 h and analyses were performed. RESULTS Total, progressive and rapid motility values of the Control group were higher than those of the MA groups (p<0.05). However, there was no statistical difference between the Control and Group 2 in terms of these parameters. While there was no statistical difference between the groups in terms of acrosome damage and mitochondrial membrane potential, the best results were observed in Control, Group 2, Group 1 and Group 3, respectively. When we compared all groups, no difference was found in terms of MDA, CAT and GSH-Px. There was a statistical difference between Group 3 and the Control in terms of GSH level (p<0.05). CONCLUSION DMSO appeared to be more useful for the cryopreservation of rabbit semen compared to MA. Doi.org/10.54680/fr23610110812.
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Affiliation(s)
- S A Akarsu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey
| | - I H Gungor
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - T C Acisu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - A Cakir
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - E Guler
- Department of Physiology, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - R H Koca
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Bingol University, Bingol, Turkey.
| | - I Yilmaz
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - M Sonmez
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - S Gur
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - G Turk
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - S O Kaya
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - A Yuce
- Department of Physiology, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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Rahman MA, Yilmaz I, Albadri ST, Salem FE, Dangott BJ, Taner CB, Nassar A, Akkus Z. Artificial Intelligence Advances in Transplant Pathology. Bioengineering (Basel) 2023; 10:1041. [PMID: 37760142 PMCID: PMC10525684 DOI: 10.3390/bioengineering10091041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/15/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Transplant pathology plays a critical role in ensuring that transplanted organs function properly and the immune systems of the recipients do not reject them. To improve outcomes for transplant recipients, accurate diagnosis and timely treatment are essential. Recent advances in artificial intelligence (AI)-empowered digital pathology could help monitor allograft rejection and weaning of immunosuppressive drugs. To explore the role of AI in transplant pathology, we conducted a systematic search of electronic databases from January 2010 to April 2023. The PRISMA checklist was used as a guide for screening article titles, abstracts, and full texts, and we selected articles that met our inclusion criteria. Through this search, we identified 68 articles from multiple databases. After careful screening, only 14 articles were included based on title and abstract. Our review focuses on the AI approaches applied to four transplant organs: heart, lungs, liver, and kidneys. Specifically, we found that several deep learning-based AI models have been developed to analyze digital pathology slides of biopsy specimens from transplant organs. The use of AI models could improve clinicians' decision-making capabilities and reduce diagnostic variability. In conclusion, our review highlights the advancements and limitations of AI in transplant pathology. We believe that these AI technologies have the potential to significantly improve transplant outcomes and pave the way for future advancements in this field.
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Affiliation(s)
- Md Arafatur Rahman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
- Department of Mathematics, Florida State University, Tallahassee, FL 32306, USA
| | - Ibrahim Yilmaz
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
- Computational Pathology and Artificial Intelligence, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Sam T. Albadri
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Fadi E. Salem
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Bryan J. Dangott
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
- Computational Pathology and Artificial Intelligence, Mayo Clinic, Jacksonville, FL 32224, USA
| | - C. Burcin Taner
- Department of Transplantation Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Aziza Nassar
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Zeynettin Akkus
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA
- Computational Pathology and Artificial Intelligence, Mayo Clinic, Jacksonville, FL 32224, USA
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Guctekin Yasar O, Bostanci A, Karuk Elmas SN, Aydin D, Arslan FN, Sadi G, Yilmaz I. A cyanobiphenyl-based fluorescent ''lighting-up'' sensor for highly selective and sensitive recognition of Al 3+: Theoretical, practical and bioimaging studies. Spectrochim Acta A Mol Biomol Spectrosc 2023; 294:122556. [PMID: 36878135 DOI: 10.1016/j.saa.2023.122556] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/13/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
The recognition of toxic Al3+ in foods and biosystems has of great interest to researchers. Herein, a novel cyanobiphenyl-based chemosensor CATH (E)-N'-((4'-cyano-4-hydroxy-[1,1'-biphenyl]-3-yl)methylene)thiophene-2-carbohydrazide was fabricated and shown to recognize Al3+ in HEPES buffer:EtOH (90:10, v:v, pH = 7.4) by ''lighting-up'' fluorescence sensing. The CATH evidenced high sensitivity (LOD = 13.1 nM) and excellent selectivity to Al3+ over competing cations. The Job's plot, TOF-MS and theoretical computation studies were performed to probe the binding mechanism of Al3+ to CATH. Additionally; CATH was successfully utilized to practical applications and employed to recover of Al3+ from different food samples. More importantly, it was employed to intracellular Al3+ detection in living cells including THLE2 and HepG2.
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Affiliation(s)
- Ozlem Guctekin Yasar
- Chemistry Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye
| | - Aykut Bostanci
- Biology Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye
| | - Sukriye Nihan Karuk Elmas
- Chemistry Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye; Analytical Chemistry Department, Pharmacy Faculty, Istanbul University-Cerrahpaşa, 34500 Istanbul, Turkiye.
| | - Duygu Aydin
- Chemistry Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye.
| | - Fatma Nur Arslan
- Chemistry Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye.
| | - Gokhan Sadi
- Biology Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye
| | - Ibrahim Yilmaz
- Chemistry Department, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100 Karaman, Turkiye
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Bilir B, Yilmaz I, Karaarsalan N, Bilir BE, Kaplan N, Ozbek H. Evaluation of Calciferol, Cobalamin, and Stromelysin-1 in Patients with Diabetic Peripheral Neuropathy due to Type-2 Diabetes Mellitus. J Coll Physicians Surg Pak 2022; 32:1255-1259. [PMID: 36205267 DOI: 10.29271/jcpsp.2022.10.1255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 09/16/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To evaluate the relationship between calciferol (vitamin D), cobalamin (vitamin-B12), and Stromelysin-1 (MMP-3) circulating levels in patients with diabetic peripheral neuropathy (DPN), patients with DM type 2 (T2DM) without neuropathy, and healthy control groups. STUDY DESIGN Cross-sectional descriptive study. PLACE AND DURATION OF STUDY Department of Internal Medicine, Namik Kemal University of Medicine, Tekirdag, Turkey, between November 2020 and February 2022. METHODOLOGY Healthy, age, and gender matched volunteers who were admitted to the hospital for a check-up with no health problem constituted the control group (n=30). Cases diagnosed with T2DM (n=30) and those with DPN (n=30) comprised the experimental group. Stromelysin-1, calciferol, and cobalamin levels were analysed from blood samples from all groups using enzyme-linked immunosorbent assay (ELISA) with a commercial kit. Tukey's Honest Significant Difference (HSD) test was performed after one-way analysis of variance (ANOVA) for intergroup comparisons. Alpha significance level was accepted as.
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Affiliation(s)
- Bulent Bilir
- Department of Internal Medicine, Namik Kemal University School of Medicine, Tekirdag, Turkey
| | - Ibrahim Yilmaz
- Unit of Pharmacovigilance, Republic of Turkey, Ministry of Health, Doctor Ismail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey
| | - Numan Karaarsalan
- Department of Neurosurgery, Halic University School of Medicine, Istanbul, Turkey
| | - Betul Ekiz Bilir
- Department of Endocrinology and Metabolic Diseases, Republic of Turkey, Ministry of Health, Doctor Ismail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey
| | - Necati Kaplan
- Department of Neurosurgery, Istanbul Rumeli University, Corlu Reyap Hospital, Tekirdag, Turkey
| | - Hanefi Ozbek
- Department of Medical Pharmacology, Izmir Bakircay University School of Medicine, Izmir, Turkey
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Yilmaz I, Akalan H, Karaarslan N, Yasar Sirin D, Kaplan N, Dogan M, Ozbek H, Ates O. Can transcription factors in the intervertebral disc of lopinavir/ritonavir prevent degeneration in the nucleus pulposus by mediating the regulation of inflammation through signaling pathways? Eur Rev Med Pharmacol Sci 2022; 26:6845-6855. [PMID: 36196733 DOI: 10.26355/eurrev_202209_29788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE This study was conducted to examine whether lopinavir/ritonavir (Lop/r), an HIV protease inhibitor, can improve disc physiology and slow down intervertebral disc (IVD) degeneration through in vitro experimental methods, as well as whether it can suppress inflammation with interleukin-1 beta (IL-1β) and sex-determining region Y (SRY) protein-related high-mobility group box genes-9 (SOX9) through hypoxia-inducible factor 1-alpha (HIF-1α) and the nuclear factor kappa B (NF-κB) signaling pathway. The aim was to investigate whether Lop/r application is toxic to IVD cells and the microenvironment simultaneously. PATIENTS AND METHODS Human primary cell cultures were prepared using herniated IVD tissues obtained from patients with lumbar disc hernia who were unresponsive to conservative and medical treatment, and thereby, were operated on. The untreated culture samples served as control group, and the samples treated with Lop/r served as study group. Microscopic evaluations were performed simultaneously using fluorescent and supravital dyes in all groups. In addition to cell viability, toxicity, and proliferation analysis through a commercial kit, IL-1β, SOX9, HIF-1α, and NF-κB protein expressions were evaluated using Western blotting. In the statistical comparison of the obtained data, an alpha value less than 0.05 was considered significant. RESULTS Cell proliferation decreased in the Lop/r group, but no cell death was observed (p < 0.05). Moreover, at the end of 72 hours after Lop/r application, IL-1β and NF-kB protein expressions decreased by 40% and 52%, respectively, while HIF-1α and SOX9 protein expressions increased by 4% and 59%, respectively (p< 0.05). CONCLUSIONS Although these data were obtained from an in vitro experimental study, it is believed that these findings could make significant contributions to the pharmaco-regenerative treatment modalities of IVD degeneration. Lop/r suppresses the IL-1β and NF-κB and induces SOX9 and HIF-1α, since these signaling pathways may be related to human IVD degeneration.
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Affiliation(s)
- I Yilmaz
- Unit of Pharmacovigilance and Rational Use of Drugs, Republic of Turkey, Ministry of Health, Dr. Ismail Fehmi Cumalıoglu City Hospital, Tekirdag, Turkey.
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Yilmaz I, Akalan H, Oznam K, Karaarslan N, Yasar Sirin D, Ozbek H. Does oseltamivir protect human chondrocyte and nucleus pulposus cells from degeneration by inhibiting senescence and proinflammation mediated by the NLRP3 inflammasome and NF-κB? Eur Rev Med Pharmacol Sci 2022; 26:4816-4827. [PMID: 35856374 DOI: 10.26355/eurrev_202207_29207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Recent drug design studies suggest that inflammation is among the most important factors in the development of both intervertebral disc (IVD) degeneration (IVDD) and osteoarthritis (OA) due to cartilage damage. This study aimed to investigate whether the anti-inflammatory drug oseltamivir has a toxic effect on IVD and cartilage tissue cells. It assessed what effect oseltamivir has on hypoxia-inducible factor (HIF)-1 alpha (HIF1α), which plays an important role in anabolic pathways in IVD and cartilage tissue. In addition, the study analyzed whether oseltamivir could inhibit the release of inflammatory interleukin-1 beta (IL-1β) via the nuclear factor kappa-B (NF-κB) signaling pathway by activating the nucleotide-binding oligomerization domain and leucine-rich repeat protein-3 (NLRP3) inflammasome. MATERIALS AND METHODS Human lumbar IVD (n = 8) tissues were isolated for annulus fibrosus (AF) and nucleus pulposus (NP) primary cell cultures, and human tibial and femoral cartilage tissues (n = 8) were isolated for primary chondrocyte cultures. Untreated groups served as the control and oseltamivir-treated groups as the study sample. Cell viability and cytotoxicity were evaluated at 0, 24, 48, and 72 h in all groups for changes in HIF-1α, IL-1β, NF-κB, and the NLRP3-inflammasome protein expressions using Western blotting. The α significance value was < 0.05. RESULTS In the oseltamivir-treated groups, cell proliferation decreased in both AF/NP cell and chondrocyte cultures obtained from IVD cartilage tissues. After Western blotting analysis, changes were observed in the protein expressions of HIF-1α, IL-1β, NF-κB, and the NLRP3 inflammasome in both AF/NP cells and chondrocytes. The results were statistically significant (p < 0.05). CONCLUSIONS Oseltamivir treatment may be a promising regenerative strategy to manage IVDD and osteoarthritic cartilage tissues.
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Affiliation(s)
- I Yilmaz
- Department of Pharmacovigilance, Republic of Turkey, Ministry of Health, Doctor Ismail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey.
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Kiran G, Yilmaz I, Aydin S, Sanlikan F, Ozkaya E. The shortest distance between the skin and the peritoneal cavity is obtained with fascial elevation: a preliminary prospective laparoscopic entry study. Facts Views Vis Obgyn 2022; 14:171-175. [DOI: 10.52054/fvvo.14.2.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The purpose of this study was to prospectively compare the measurement of skin-to-fascia distances in the neutral state, during manual elevation and by fascial elevation in patients who underwent laparoscopic surgery. In 53 patients, the distance between the skin and anterior wall of the rectus sheath was measured prospectively in following three different ways: (1) in neutral position, (2) during manual elevation and (3) during elevation of the fascia using forceps following an infraumbilical vertical skin incision. In all patients, subcutaneous tissue up to the fascia was dissected after a vertical skin incision. The skin-to-fascia distance of 30.9 mm (14.0-52.0 mm) in the neutral position decreased to 11.1 mm (0.0-26.0 mm) during the fascial elevation, while the mean distance increased to 40.1 mm (19-70 mm) during manual elevation (p < 0.001). In the closed laparoscopic entry technique in which a Veress needle is inserted into the peritoneum through a small incision, the needle should be introduced from the shortest distance between the skin and the peritoneum. Lifting the fascia with a proper surgical instrument in suitable patients could enable us to achieve this goal.
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Ates O, Yilmaz I, Karaarslan N, Ersoz E, Hacioglu Kasim FB, Dogan M, Ozbek H. Coexistence of SARS-CoV-2 and cerebrovascular diseases: does COVID-19 positivity trigger cerebrovascular pathologies? J Infect Dev Ctries 2022; 16:981-992. [PMID: 35797292 DOI: 10.3855/jidc.15800] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/27/2022] [Indexed: 10/31/2022] Open
Abstract
The objectives of this study were to determine the prevalence of cerebrovascular diseases caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, and to assess the pharmacological agents used in such cases as reported in the literature. Patient files were retrospectively scanned to determine the prevalence of neurological symptoms of the central nervous system (headache, dizziness, lack of smell and taste, numbness in arms and legs, change in consciousness, muscle weakness, loss of urine and stool control) and cerebrovascular diseases (ischemic cerebrovascular diseases, cerebral venous sinus thrombosis, intracerebral hemorrhage, subarachnoid/subdural hemorrhage) in 2019 novel coronavirus (2019-nCoV) disease (COVID-19) cases (n = 20,099). The diagnostic laboratory, radiology examinations and treatments applied to these cases were recorded. The data from studies presenting cerebrovascular diseases associated with SARS-Cov-2, which constituted 0.035% of all cases, were systematically evaluated from electronic databases. During the treatment of cerebrovascular diseases, it was discovered that high doses of enoxaparin sodium anti-Xa are combined with apixaban or acetylsalicylic acid or clopidogrel or piracetam, and mannitol, in addition to SARS-CoV-2 treatment modalities. While neurological symptoms of the central nervous system are uncommon in cases of SARS-CoV-2 infection, cerebrovascular diseases are far less common, according to the findings of this study. Acute cerebral ischemia was discovered to be the most common cerebrovascular disease associated with SARS-CoV-2. The mortality rate increases with the association between SARS-CoV-2 and cerebrovascular disease.
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Affiliation(s)
- Ozkan Ates
- Department of Neurosurgery, Koc University School of Medicine, Department of Neurosurgery, Istanbul, Turkey
| | - Ibrahim Yilmaz
- Unit of Pharmacovigilance, Republic of Turkey, Ministry of Health, City Hospital, Tekirdag, Turkey.
| | - Numan Karaarslan
- Department of Neurosurgery, Halic University School of Medicine, Istanbul, Turkey
| | - Emel Ersoz
- Clinics of Neurology, Republic of Turkey, Ministry of Health, Doctor Ismail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey
| | - Fatma Bahar Hacioglu Kasim
- Clinics of Radiology, Republic of Turkey, Ministry of Health, Doctor Ismail Fehmi Cumalioglu City Hospital, Tekirdag, Turkey
| | - Mustafa Dogan
- Department of Infection Diseases, Namik Kemal University School of Medicine, Tekirdag, Turkey
| | - Hanefi Ozbek
- Department of Medical Pharmacology, Izmir Bakircay University School of Medicine, Izmir, Turkey
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Yilmaz I, Akalan H, Yasar Sirin D, Karaarslan N, Kaplan N, Ozbek H. Effects of an acetylcholinesterase inhibitor and an N-methyl-D-aspartate receptor antagonist on inflammation and degeneration of the nucleus pulposus. Eur Rev Med Pharmacol Sci 2022; 26:4409-4419. [PMID: 35776042 DOI: 10.26355/eurrev_202206_29080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The study aimed to examine the effects of two drugs, an acetylcholinesterase inhibitor (AChEI) and an N-methyl-D-aspartate receptor (NMDAR) antagonist, on degenerated annulus fibrosus (AF) and nucleus pulposus (NP) cells and the extracellular matrix (ECM) structure in vitro. PATIENTS AND METHODS Tissue samples were obtained from patients with intervertebral disc herniation (four males and four females; classified as Pfirmann stage IV) and used to prepare cell cultures. Untreated cell culture samples served as the control group. Study group samples were treated with donepezil, memantine or a combination of the two drugs. Cell viability, toxicity and proliferation were evaluated in all groups. Western blotting was used to examine changes in protein expression of signal transducer and activator of transcription 3 (STAT3), phospho-STAT3 (ser727), hypoxia-inducible factor (HIF)-1 alpha (HIF-1α) and nucleotide-binding oligomerisation domain (NOD) leucine-rich repeat (LRR)-containing proteins (NLR) family pyrin domain containing 3 (NLRP3) inflammasome. The alpha significance value was < 0.05. RESULTS Analysis of the microscopy and commercial kit results revealed that cell proliferation was suppressed, and no cell death was observed. The protein expression levels of NLRP3, STAT3, ser727 and HIF-1α were lower in the samples treated with donepezil and memantine at 72 h (p < 0.05). The protein expression levels of NLRP3, STAT3, ser727 and HIF-1α were higher in the samples treated with the combination of donepezil and memantine (p < 0.05). CONCLUSIONS The combined administration of memantine a NMDAR antagonist which can prevent neurodegeneration and donepezil an AChEI used for pain relief increased the protein expression levels in the anabolic pathway. However, it did not reduce the protein expression levels in the catabolic pathway. Therefore, further studies are needed to provide extensive insight into whether it may be among the potential targets for the therapy of intervertebral disc (IVD) diseases.
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Affiliation(s)
- I Yilmaz
- Republic of Turkey, Ministry of Health, Dr. Ismail Fehmi Cumalioglu City Hospital, Unit of Pharmacovigilance and Rational Use of Drugs, Tekirdag, Turkey.
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Karuk Elmas SN, Karagoz A, Arslan FN, Yilmaz I. Propylimidazole Functionalized Coumarin Derivative as Dual Responsive Fluorescent Chemoprobe for Picric Acid and Fe3+ Recognition: DFT and Natural Spring Water Applications. J Fluoresc 2022; 32:1357-1367. [DOI: 10.1007/s10895-022-02936-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/24/2022] [Indexed: 11/30/2022]
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Yilmaz I, Karaarslan N. Examining the effects of HMG-CoA reductase inhibitors on anabolic and catabolic signaling pathway proteins associated with degenerative disc disease. Eur Rev Med Pharmacol Sci 2022; 26:2990-3000. [PMID: 35503599 DOI: 10.26355/eurrev_202204_28630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Recent evidence suggests that statins, among lipid-lowering drugs, can be used to lower serum cholesterol levels for reducing the risk of cardiovascular disease in individuals with high cholesterol, as well as reducing DNA damage and having anti-ageing and pleiotropic effects. Additionally, nuclear factor kappa B (NF-κB) is reported to be suppressed in statin-administered nucleus pulposus (NP) cells for the prevention of interleukin (IL) -1 beta (IL-1β)-induced apoptosis and extracellular matrix (ECM) degradation. The purpose of this study is the examine whether it is possible for pharmacological synthetic statin agents added into primary cell cultures obtained from human intervertebral disc tissue (IVD) to stop and eliminate tissue degeneration through the anabolic/catabolic signaling pathways associated with inflammation. MATERIALS AND METHODS Pitavastatin and rosuvastatin were added to monolayer grown human primary annulus fibrosus (AF)/NP cells. Cytotoxicity and proliferation analyses were carried out. AF/NP cells and ECM structure were also examined microscopically. In addition, changes in transcription factors and protein expressions of proinflammatory cytokines, which play important roles in anabolic and catabolic pathways associated with inflammation, were analyzed. RESULTS Decreased proliferation and cell necrosis were observed at the end of 72 hours in the samples, in which statins were added, compared to the samples in the control group to which no pharmacological agent was administered. In addition to this, changes were observed in the expressions of proteins. All results were statistically significant (p<0.05). CONCLUSIONS To better understand the regenerative effects of these two pharmacological agents on degenerated AF/NP cells, there is an urgent need for prospective studies in which different signaling pathways and receptors on these pathways are investigated, apart from IL-1β; NF-κB signaling pathway and SOX9.
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Affiliation(s)
- I Yilmaz
- Unit of Pharmacovigilance, and Rational Use of Drugs, Republic of Turkey, Ministry of Health, Dr. Ismail Fehmi Cumalioglu Hospital, Tekirdag, Turkey.
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14
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Acimis NM, Yilmaz I, Tekindal MA, Kilic R. Rational use of drugs in healthcare services: a sample of tertiary hospital. Eur Rev Med Pharmacol Sci 2022; 26:1701-1707. [PMID: 35302219 DOI: 10.26355/eurrev_202203_28239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE This study aimed at evaluating physicians' attitudes towards the rational use of drugs (RUD) at a training and research hospital. SUBJECTS AND METHODS This cross-sectional study was conducted in a training and research hospital affiliated with the Ministry of Health between December 2014 and April 2015. All 424 active-duty physicians were asked to participate in the survey study. Of these physicians, 193 (45.5%) volunteered to respond to a 64-item survey. A total of 193 (45.5%) physicians volunteered to participate in the study. The chi-squared test, ANOVA, and multiple logistic regression analysis were used for the evaluation of the study data. RESULTS Of the physicians who participated in the study, 58.0% were male. Prescriptions were dispensed for 52.73% (± 27.44) of the patients, with a mean of 2.67±0.98 items per prescription. The rational use of drugs was defined as prescribing an effective drug for the patient (85.4%), prescribing an appropriate drug for the patient (84.9%), and prescribing a safe drug for the patient (77.2%). Compared to residents, the prescription preferences of specialists were affected 2-fold by follow-up visit (p=0.010, β 0.694, CI 1.180 3.396), 1-fold by patient examination percentage (p=0.002, β 0.022, CI 1.008 1.037), and 3.5-fold by prescribing iron supplements (p=0.001, β 1.274, CI 1.644 7.774) (R2 0.259, p=0.001). CONCLUSIONS The results of the study showed that tertiary hospital specialists and residents have similar attitudes towards patients, their prescribing preferences and RUD knowledge level. This study provides comprehensive information on physicians' attitudes towards RUD.
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Affiliation(s)
- N M Acimis
- Pamukkale University School of Medicine, Denizli, Turkey.
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15
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Akin Geyik G, Peker Cengiz B, Tugrul F, Karuk Elmas SN, Yilmaz I, Arslan FN. A rapid diagnostic approach for gastric and colon cancers via Fourier transform mid-infrared spectroscopy coupled with chemometrics from paraffin-embedded tissues. Spectrochim Acta A Mol Biomol Spectrosc 2022; 267:120619. [PMID: 34810101 DOI: 10.1016/j.saa.2021.120619] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/10/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
This paper describes the feasibility of Attenuated total reflection-Fourier transform mid-infrared (ATR-MIR) spectroscopy method coupled with chemometrics for the rapid diagnostic approach and screening spectral changes for gastric and colon cancers from paraffin-embedded tissues. A total number of 82 tissue samples were analyzed by a simple ATR-MIR method combined with PCA, HCA, SIMCA and LDA methodologies. Spectral analyses showed significant differences for the molecular contents particularly about the lipid, nucleic acid, protein and other biomolecules in the samples of gastric cancer (GC) and colon cancer (CC) groups from their control/healthy groups. Significant changes in the characteristic of these molecules were only observed for cancer groups based upon the increment in their biosynthesis, and they could be utilized as diagnostic spectral biomarkers. Under the optimum conditions, SIMCA provided excellent classification for diseased and control groups, with 5% significance level. As well, 97.75% of the studied tissue samples were correctly discriminated on the basis of their origin by LDA. Consequently, the findings of this study highlighted the rapid diagnosis of gastric and colon cancer cases from paraffin-embedded tissues via ATR-MIR spectroscopy complemented with chemometrics.
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Affiliation(s)
- Gonul Akin Geyik
- Department of Chemistry, Faculty of Science, University of Karamanoglu Mehmetbey, 70100 Karaman, Turkey
| | - Betul Peker Cengiz
- Clinic of Medical Pathology, Eskişehir Yunus Emre State Hospital, 26190 Eskisehir, Turkey
| | - Fuzuli Tugrul
- Clinic of Radiation Oncology, Eskişehir City Hospital, 26080 Eskisehir, Turkey
| | - Sukriye Nihan Karuk Elmas
- Department of Chemistry, Faculty of Science, University of Karamanoglu Mehmetbey, 70100 Karaman, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Faculty of Science, University of Karamanoglu Mehmetbey, 70100 Karaman, Turkey.
| | - Fatma Nur Arslan
- Department of Chemistry, Faculty of Science, University of Karamanoglu Mehmetbey, 70100 Karaman, Turkey.
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16
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Affiliation(s)
- Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Faculty of Science,
Karamanoğlu Mehmetbey University,
Karaman, Turkey
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17
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Karuk Elmas SN, Aydin D, Savran T, Caliskan E, Koran K, Arslan FN, Sadi G, Gorgulu AO, Yilmaz I. A Fluorene based Fluorogenic ''Turn-off'' Chemosensor for the Recognition
of Cu2+ and Fe2+: Computational Modeling and Living-cell Application. CURR ANAL CHEM 2022. [DOI: 10.2174/1871520621666210322112005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The traditional methods for the detection and quantification of Cu2+ and Fe3+
heavy metal ions are usually troublesome in terms of high-cost, non-portable, time-consuming, specialized
personnel and complicated tools, so their applications in practical analyses is limited. Therefore,
the development of cheap, fast and simple-use techniques/instruments with high sensitivity/selectivity
for the detection of heavy metal ions is highly demanded and studied.
Methods:
In this study, a fluorene-based fluorescent 'turn-off' sensor, methyl 2-(2-((((9H-fluoren-9-
yl)methoxy)carbonyl)amino)-3- phenylpropanamido) acetate (probe FLPG) was synthesized via onepot
reaction and characterized by 1H-NMR, 13C-APT-NMR, HETCOR, ATR-FTIR and elemental
analysis in detailed. All emission spectral studies of the probe FLPG have been performed in
CH3CN/HEPES (9/1, v/v, pH=7.4) media at rt. The quantum (Φ) yield of probe FLPG decreased considerably
in the presence of Cu2+ and Fe3+. The theoretical computation of probe FLPG and its complexes
were also performed using density functional theory (DFT). Furthermore, bio-imaging experiments
of the probe FLPG was successfully carried out for Cu2+ and Fe3+ monitoring in living-cells.
Results:
The probe FLPG could sense Cu2+ and Fe3+ with high selectivity and sensitivity, and quantitative
correlations (R2>0.9000) between the Cu2+/Fe3+ concentrations (0.0−10.0 equiv). The limits of detection
for Cu2+ and Fe3+ were found as 25.07 nM and 37.80 nM, respectively. The fluorescence
quenching in the sensor is managed by ligand-to-metal charge transfer (LMCT) mechanism. Job’s plot
was used to determine the binding stoichiometry (1:2) of the probe FLPG towards Cu2+ and Fe3+. The
binding constants with strongly interacting Cu2+ and Fe3+ were determined as 4.56×108 M-2 and
2.02×1010 M-2, respectively, via the fluorescence titration experiments. The outcomes of the computational
study supported the fluorescence data. Moreover, the practical application of the probe FLPG
was successfully performed for living cells.
Conclusion:
This simple chemosensor system offers a highly selective and sensitive sensing platform
for the routine detection of Cu2+ and Fe3+, and it keeps away from the usage of costly and sophisticated
analysis systems.
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Affiliation(s)
- Sukriye Nihan Karuk Elmas
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Duygu Aydin
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Tahir Savran
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Eray Caliskan
- Department of Chemistry, Science Faculty, Bingol University, Bingol, Turkey
| | - Kenan Koran
- Department of Chemistry, Faculty
of Science, Firat University, Elazig, Turkey
| | - Fatma Nur Arslan
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Gokhan Sadi
- Department of Biology, Kamil Ozdag Science Faculty, Karamanoglu
Mehmetbey University, Karaman, Turkey
| | - Ahmet Orhan Gorgulu
- Department of Chemistry, Faculty
of Science, Firat University, Elazig, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
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Simsek O, Dincer M, Dege N, Saif E, Yilmaz I, Cukurovali A. Crystal structure and Hirshfeld surface analysis of (Z)-4-{[4-(3-methyl-3-phenylcyclobutyl)thiazol-2-yl]amino}-4-oxobut-2-enoic acid. Acta Crystallogr E Crystallogr Commun 2022; 78:120-124. [PMID: 35145736 PMCID: PMC8819446 DOI: 10.1107/s2056989022000032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/02/2022] [Indexed: 11/22/2022]
Abstract
The title compound is a cyclobutyl compound that adopts a Z configuration. The molecular structure is stabilized by an N—H⋯O hydrogen bond, forming an (7) ring motif. In the crystal, molecules are linked by pairs of O—H⋯N hydrogen bonds, forming supramolecular ribbons linked via C11(9) ring motifs. The title cyclobutyl compound, C18H18N2O3S, was synthesized by the interaction of 4-(3-methyl-3-phenylcyclobutyl)thiazol-2-amine and maleic anhydride, and crystallizes in the orthorhombic space group P212121 with Z′ = 1. The molecular geometry is partially stabilized by an intramolecular N—H⋯O hydrogen bond forming an S11(7) ring motif. The molecule is non-planar with a dihedral angle of 88.29 (11)° between the thiazole and benzene rings. In the crystal, the molecules are linked by O—H⋯N hydrogen bonds, forming supramolecular ribbons with C11(9) chain motifs. To further analyze the intermolecular interactions, a Hirshfeld surface analysis was performed. The results indicate that the most important contributions to the overall surface are from H⋯H (43%), C⋯H (18%), O⋯H (17%) and N⋯H (6%), interactions.
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Savran T, Karuk Elmas SN, Aydin D, Arslan S, Arslan FN, Yilmaz I. Design of multiple-target chemoprobe: “naked-eye” colorimetric recognition of Fe3+ and off–on fluorogenic detection for Hg2+ and its on-site applications. Res Chem Intermed 2022. [DOI: 10.1007/s11164-021-04648-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Yilmaz I, Akalan H, Sirin Yasar D, Karaarslan N, Ozbek H, Ates O. Is favipiravir a potential therapeutic agent in the treatment of intervertebral disc degeneration by suppressing autophagy and apoptosis? Turk Neurosurg 2022; 32:680-687. [DOI: 10.5137/1019-5149.jtn.38252-22.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Caliskan T, Akalan H, Yilmaz I, Karaarslan N, Sirin DY, Ozbek H. The effects of rivaroxaban, an oral anticoagulant, on human IVD primary cultures. Arch Med Sci 2022; 18:1062-1070. [PMID: 35832710 PMCID: PMC9266726 DOI: 10.5114/aoms/136323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 05/02/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The present study aimed to investigate the potential effects of rivaroxaban, an oral anticoagulant that inhibits the effects of factor Xa, on intact intervertebral disc tissue cells and the extracellular matrix (ECM). MATERIAL AND METHODS Rivaroxaban was applied to primary human cell cultures prepared from tissues of the intervertebral disc. Comparative molecular analyses were performed on non-drug-treated control group samples. Descriptive statistics were presented as the mean ± standard deviation. An analysis of variance test was performed to determine whether there were significant differences in the mean across the groups. When differences across groups were observed, Tukey's honestly significant difference post-hoc test was used for multiple pairwise comparisons. The significance of the obtained data was determined statistically. The α significance value was < 0.05. RESULTS The cells in the control group and in the rivaroxaban-treated group were viable, healthy, and proliferated (p < 0.05). However, the expression levels of the chondroadherin gene (CHAD), cartilage oligo matrix protein (COMP), matrix metalloproteinase (MMP)-13, and MMP-19 genes were changed (p < 0.05). CONCLUSIONS Although rivaroxaban does not suppress cell proliferation due to morphological, biological, and biochemical changes in the intervertebral disc tissue, it may change the expression of genes that are related to ECM maintenance.
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Affiliation(s)
- Tezcan Caliskan
- Department of Neurosurgery, School of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Hande Akalan
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Namik Kemal University, Tekirdag, Turkey
| | - Ibrahim Yilmaz
- Department of Medical Pharmacology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Numan Karaarslan
- Department of Neurosurgery, School of Medicine, Halic University, Istanbul, Turkey
| | - Duygu Yasar Sirin
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Namik Kemal University, Tekirdag, Turkey
| | - Hanefi Ozbek
- Department of Medical Pharmacology, Bakircay University School of Medicine, Izmir, Turkey
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Karuk Elmas SN, Dinckan S, Arslan FN, Aydin D, Savran T, Yilmaz I. A rhodamine based nanosensor platform for Hg2+ sensing in near–perfect aqueous medium: Smartphone, test strip and real sample applications. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Karakurt T, Dinçer M, Cukurovali A, Yilmaz I. Quantum Chemical Calculations of 5-Diethylamino-2-{[4-(3-Methyl-3-Phenyl-Cyclobutyl)-Thiazol-2-yl]-Hydrazonomethyl}-Phenol Single Crystal Containing Heteroatoms. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2004173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tuncay Karakurt
- Department of Chemical Engineering, Faculty of Engineering-Architecture, Kirsehir Ahi Evran University, Kirsehir, Turkey
| | - Muharrem Dinçer
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, Kurupelit, Samsun, Turkey
| | - Alaaddin Cukurovali
- Department of Chemistry, Faculty of Science, Firat University, Elazig, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
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Aydin D, Karuk Elmas SN, Savran T, Arslan FN, Sadi G, Yilmaz I. An ultrasensitive ″OFF–ON″ fluorogenic sensor based on thiazole derivative for Zn2+: Food supplement, water and bio–imaging applications. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113459] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Saydam M, Yilmaz KB, Sahin M, Yanik H, Akinci M, Yilmaz I, Balas S, Azili C, Gulcelik MA. New Findings on Autoimmune Etiology of Idiopathic Granulomatous Mastitis: Serum IL-17, IL-22 and IL-23 Levels of Patients. J INVEST SURG 2021; 34:993-997. [PMID: 32046543 DOI: 10.1080/08941939.2020.1725190] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Idiopathic Granulomatous Mastitis (IGM) is a benign chronic inflammatory breast disease that mimics breast cancer, and the etiopathogenesis has not yet been fully evaluated. Autoimmunity has received the most focus as a possible etiology. Our aim in this prospective clinical study was to investigate the possible association between the cytokines, interleukin IL-17, IL-22, IL-23 and IGM. MATERIALS AND METHODS The current study was conducted in 26 women with histopathologically diagnosed IGM, and 15 control women of reproductive age having no breast disease history. Blood samples were collected, and serum concentrations of IL-17, IL-22, and IL-23 were determined. RESULTS In the analysis of variables, the patients with IGM and the control group had statistically significant differences between serum IL-22 titers (p = 0.0378) and IL-23 titers (p = 0.0469. No statistically significant difference was found between IGM patients and the control group in serum IL-17 titers (p = 0.9724). CONCLUSION The results of the current study, especially pertaining to serum IL-22 and IL-23 levels, support the etiopathogenesis of IGM in favor of the autoinflammatory thesis. Nevertheless, this thesis should be supported by a large case number and prospective clinical studies.
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Affiliation(s)
- Mehmet Saydam
- Department of General Surgery, University of Health Sciences, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Kerim Bora Yilmaz
- Department of General Surgery, University of Health Sciences, Gulhane Training and Research Hospital, Ankara, Turkey
- Department of Medical and Surgical Research, University of Health Sciences, Hacettepe University, Ankara, Turkey
| | - Mutlu Sahin
- Department of General Surgery, University of Health Sciences, Ankara Kecioren Training and Research Hospital, Ankara, Turkey
| | - Hamdullah Yanik
- Department of Basic Oncology, Cancer Institute, Hacettepe University, Ankara, Turkey
| | - Melih Akinci
- Department of General Surgery, University of Health Sciences, Gulhane Training and Research Hospital, Ankara, Turkey
| | - Ibrahim Yilmaz
- Department of General Surgery, University of Health Sciences, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Sener Balas
- Department of General Surgery, University of Health Sciences, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Cem Azili
- Department of General Surgery, University of Health Sciences, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Mehmet Ali Gulcelik
- Department of General Surgery, University of Health Sciences, Gulhane Training and Research Hospital, Ankara, Turkey
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Bostanci MT, Yilmaz I. Surgical Resection Length and Harvested Lymph Nodes in Colon Cancer. J Coll Physicians Surg Pak 2021; 31:798-804. [PMID: 34271779 DOI: 10.29271/jcpsp.2021.07.798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/01/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To determine the relationship between resected specimen length and tumor location, the number of LN harvested (LNh), and the positive LN ratio (LNR) in colon cancer. STUDY DESIGN A descriptive study. Place & Duration of Study: Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey, between January 2009 and December 2019. METHODOLOGY Colon specimens resected for colon cancer were evaluated retrospectively, in terms of tumor location, type of surgery, resected colon length, LNh and the number of metastatic LN, based on hospital records. Chi-square test, Kruskal-Wallis along with Dunn-Bonferroni post hoc tests were applied. The lymph node ratio (LNR) (= ratio of LN+ to LNh), the number of lymph nodes per unit distance (LNh/cm), the ratio of LNR to length of specimen (LNR/cm) were evaluated. RESULTS The rate of ≥12 LNh in 644 colon cancer patients was 81.4%. The length of colon specimen and the number of harvested lymph nodes (LNh) were higher in patients, who underwent subtotal colectomy (StC), compared to patients who underwent right and left hemicolectomy (RhC and LhC, p<0.001). Inadequate LNh was more common in LhC patients (p<0.001). The ratio of the number of LNh to the length of the resected specimen (LNh/cm) was higher in RhC and LhC patients than StC patients (p<0.001). LNR and LNR/cm were higher in LhC patients, though mean specimen length was shorter in LhC patients (p<0.05). The number of LNh had a direct proportion with the resected specimen length; however, the LNh/cm and LNR/cm ratios decreased in >50 cm length specimen patients (p<0.001). CONCLUSION Central LN dissection and vascular high ligation, according to tumor site are more efficient than the length of the resected specimen for an adequate LN dissection in colon cancers. Key Words: Colon cancer, Harvested lymph node, Specimen length, Adequate dissection.
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Affiliation(s)
- Mustafa Taner Bostanci
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
| | - Ibrahim Yilmaz
- Department of General Surgery, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
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Savran T, Nihan Karuk Elmas S, Akin Geyik G, Bostanci A, Aydin D, Nur Arslan F, Sadi G, Yilmaz I. “Turn‐on” Fluorescence Chemosensor Based Probing of Cu
2+
with Excellent Sensitivity: Experimental Study, DFT Calculations and Application in Living Cells and Natural Waters. ChemistrySelect 2021. [DOI: 10.1002/slct.202101060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tahir Savran
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Sukriye Nihan Karuk Elmas
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Gonul Akin Geyik
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Aykut Bostanci
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Duygu Aydin
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Fatma Nur Arslan
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Gökhan Sadi
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
| | - Ibrahim Yilmaz
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry 70100 Karaman Turkey
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Yilmaz I, Ozden D, Arslan GG. Intensive care nurses' evidence-based knowledge and experiences regarding closed suctioning system. Niger J Clin Pract 2021; 24:883-891. [PMID: 34121737 DOI: 10.4103/njcp.njcp_211_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Endotracheal suctioning is a vital procedure performed by intensive care nurses to maintain airway patency and optimal gas exchange in critically ill patients under mechanical ventilation. As the procedure can cause several complications, intensive care nurses should have adequate evidence-based knowledge on how to perform the procedure. Aims This study aimed at examining intensive care nurses' knowledge and experience of the closed suctioning system. This study was a prospective, cross-sectional, descriptive, and multi-centered study conducted with 195 nurses working in the tertiary intensive care units in five Turkish hospitals. Subjects and Methods The data were collected with a questionnaire developed by the researchers in light of the literature. The data were evaluated with Kruskal-Wallis and Mann-Whitney U tests. Results The mean age of the nurses was 30.58 ± 6.28 years. The mean knowledge score of the nurses for the closed system was 27.35 ± 12.05 (range = 0-80) and 80.5% of them obtained scores ranging between 0 and 40. Also, 71.8% stated that they did not have any difficulty performing suctioning with the closed system catheter, and 85% said that they saved time with the closed system. However, 50.8% of the nurses said they were not able to suction viscous and sticky secretions efficiently, 44.6% stated they did not need to irrigate the inside of the catheter, and 45.1% of them were undecided whether the coude tip catheter led to hemorrhagic secretion more than straight tip catheter. Conclusions Almost one-fifth of the nurses had good scores on evidence-based knowledge of suctioning. Most of the nurses' experiences regarding the use and manipulation of the closed system were positive. However, almost half of the nurses pointed out that the closed system was not effective enough to suction viscous and sticky secretions. Regular in-service training sessions may help to improve nurses' current knowledge and experiences.
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Affiliation(s)
- I Yilmaz
- Dokuz Eylul University, Institute of Health Sciences; Department of Fundamentals Nursing, Dokuz Eylul University, Faculty of Nursing, Balcova, Izmir, Turkey
| | - D Ozden
- Department of Fundamentals Nursing, Dokuz Eylul University, Faculty of Nursing, Balcova, Izmir, Turkey
| | - G G Arslan
- Department of Fundamentals Nursing, Dokuz Eylul University, Faculty of Nursing, Balcova, Izmir, Turkey
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Aydin D, Yilmaz I. Simple synthesis and sensing applications of a new and low cost fluorescent chemosensor for selective recognition and facile removal of Hg2+. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sahin S, Romano M, Guzel F, Kasapcopur O, Piskin D, Yilmaz I, Demirkaya E. POS1375 THE EFFECT OF M694V HOMOZYGOSITY ON THE CAROTID INTIMA-MEDIA THICKNESS AND FLOW MEDIATED DILATATION IN PATIENTS WITH FMF RELATED AMYLOIDOSIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:There are limited data in FMF associated AA amyloidosis patients regarding the vascular abnormalities including atherosclerosis and endothelial dysfunction, all of which are contributors of cardiovascular disease (CVD) risk. And, this risk assessment for future CV events have not yet been evaluated between FMF amyloidosis patients with different genotypes.Objectives:We aimed to compare early markers of endothelial dysfunction and atherosclerosis, mortality and other disease characteristics in FMF-related amyloidosis patients with a homozygous M694V genotype and in patients with other genotypes with this cross-sectional comparative study.Methods:For this purpose, patients with FMF-related amyloidosis were assigned according to the MEFV gene mutation to one of the two groups. Group 1: Patients homozygous for M694V (which is the most common genotype associated with the most severe clinical phenotype in FMF) Group 2: Patients homozygous (other than M694V) or compound heterozygous (including M694V) for other MEFV variants. Potential confounders were controlled by excluding the patients with untreated hypertension, diabetes mellitus, obesity, smoking, previous history of CVD low glomerular filtration rate (eGFR <70 mL/min). Flow-mediated dilatation (FMD), pentraxin-3 (PTX3) as early markers of endothelial dysfunction and carotid intima-media thickness (cIMT), fibroblast Growth Factor 23 (FGF23) as an indicator of atherosclerotic vascular disease, all of which are non-invasive tests that are also used to identify subjects at increased risk for future CV events were measured in these 2 groups.Results:We analyzed demographic, clinical, genetic, survival data and these non-invasive markers of endothelial dysfunction (FMD and PTX3) and atherosclerosis (cIMT and FGF23) in 76 FMF amyloidosis patients with homozygous M694V mutations (Group 1) and 93 FMF amyloidosis patients with two pathogenic mutations apart from M694V homozygosity (Group 2) (Table 1). Brachial artery FMD was significantly lower in Group 1 when compared with Group 2 subjects (6.0 vs. 6.5%, p<0.001). cIMT, FGF23 and PTX3 levels were higher in Group 1 when compared with Group 2 (cIMT: 0.84 vs. 0.67 mm, p<0.001; FGF23: 52.4 vs. 38.0 pg/dL, p=0.01; PTX3: 14.0 vs. 3.2 ng/mL, p<0.001). Time to develop amyloidosis was similar in patients homozygous for M694V (median 10.0 years, 95%CI: 8.99-11.0) and in Group 2 (median 10.0 years, 95%CI: 8.97-11.0) (p>0.05). Mortality rate was significantly higher in Group 1 compared to Group 2 (18.4% vs. 1.1%, p<0.001) over a median of 7.8 years of follow-up. FMF amyloidosis patients homozygous for M694V had reduced survival (mean survival: 97 months, 95%CI: 94.9 to 101.0 months) as compared to Group 2 (mean survival: 100.7 months, 95%CI: 100.0 to 101.3 months) (p<0.001) (Figure 1). The proportion of the clinical manifestations including fever, serositis, erysipelas-like erythema, all of which are associated with an FMF attack did not differ between two groups (p>0.05) apart from arthritis (76.3% in Group 1 and 59.1% in Group 2, p<0.05) (Table 1).Conclusion:In patients with FMF related amyloidosis, M694V homozygosity is associated with lower FMD values and higher cIMT, FGF23 and PTX3 levels. In summary, the data demonstrate that a genotype-phenotype association exists in terms of endothelial dysfunction and atherosclerosis in FMF patients with amyloidosis.Table 1.Group 1 (n=76)Group 2 (n=93)Total (n=169)pClinical Findingsn (%)n (%)n (%)Dialysis2 (2.6)3 (3.2)5 (3.0) 1.00*Kidney transplantation5 (6.6)4 (4.3)9 (5.3)0.73*Kidney biopsy68 (89.5)85 (91.4)153 (90.5)0.67Median(Min-max)Median(Min-max)Median(Min-max)Age (years)36.5 (19.0-49.0)35.0 (22.0-49.0)36.0 (19.0-49.0)0.16Age of amyloidosis (years)20.0 (13.0-31.0)20.0 (15.0-26.0)20.0 (13.0-31.0)0.86BMI (kg/m2)26.0 (21.0-32.0)27.0 (19.0-32.0)26.6 (29.0-32.0)0.89HOMA2.2 (1.2-7.3)2.4 (1.1-8.4)2.4 (1.1-8.4)0.40Proteinuria (g/24h)7.64,65.4<0.001Disclosure of Interests:None declared
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Korkmaz M, Balci SO, Demirel C, Yilmaz I, Akarsu E. Analysis of the Relationship Between Learning and Synaptophysin in Obese Rats Treated With DPP4 Inhibitor. J Endocr Soc 2021. [PMCID: PMC8090623 DOI: 10.1210/jendso/bvab048.1083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
In this study, it is aimed to investigate possible changes in cognitive functions in obesity by using targeted treatment hypothesis. Accordingly, the effects of DPP4 inhibitor, which is actively used in the clinic in the treatment of diabetes, and the effect of exercise, which has been proven to be effective in the treatment of obesity, on the change of learning performance and the relationship of these effects with the synaptophysin molecule were investigated. In our study, 42 Wistar albino rats were used. The animals were randomly divided into seven groups as obese, control, obese+DPP4i, control+DPP4i, obese+exercise, control+exercise, control+NaCl. To create experimental obesity, the animals that are targeted to be obese were separated and fed on a high fat diet for 8 weeks. After the obese model was created, sitagliptin was applied to the DPP4i groups and swimming exercise was applied to the exercise groups for obesity treatment. The last week of the study was performed reference memory learning test to the whole group with Morris water maze. Then, the hippocampus tissues were removed from the animals under anesthesia. mRNA and protein isolations were performed from the extracted tissues. Synaptophysin gene expressions were determined from mRNA samples by Real-Time PCR method. Synaptophysin protein levels were determined from protein lysates by Western Blot method. In the learning test, in the obese groups, there was a statistically significant difference between the average escape time of the DPP4i and exercise groups and the groups that did not (p<0.05). As a result, in groups where obesity is treated with DPP4i and exercise; It was concluded that cognitive performance was better than obese groups. There was a evident decrease in synaptophysin gene expression levels in obese groups compared to the control group. In the treatment groups, an increase was observed in synaptophysin gene expression levels in the DPP4 inhibitor and especially in the exercise groups compared to the control groups (P> 0.05). Gene expression results were similar in analyzes performed at the protein level. According to these results, in terms of performance in cognitive function due to obesity and synaptophysin gene relationship; DPP4 inhibitor showed as effective a result as exercise. This provides a resource for advanced molecular and metabolic research. Acknowledgement: This study was supported by The Scientific And Technological Research Council Of Turkey (TÜBİTAK) Project No. 219S063.
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Karuk Elmas SN, Karagoz A, Aydin D, Arslan FN, Sadi G, Yilmaz I. Fabrication and sensing properties of phenolphthalein based colorimetric and turn-on fluorogenic probe for CO 32- detection and its living-cell imaging application. Talanta 2021; 226:122166. [PMID: 33676708 DOI: 10.1016/j.talanta.2021.122166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/24/2021] [Accepted: 01/27/2021] [Indexed: 11/26/2022]
Abstract
Herein, an easy assembled colorimetric and ''turn-on'' fluorescent sensor (probe P4SC) based on phenolphthalein was developed for carbonate ion (CO32-) sensing in a mixture of EtOH/H2O (v/v, 80/20, pH = 7, Britton-Robinson buffer) media. The probe P4SC demonstrated high sensitive and selective monitoring toward CO32- over other competitive anions. Interaction of CO32- with the probe P4SC resulted in a significant increment in emission intensity at λem = 498 nm (λex = 384 nm) due to the strategy of blocking the photo induced electron transfer (PET) mechanism. 1H NMR titration and Job's methods, as well as the theoretical study were carried out to support the probable stoichiometry of the reaction (1:2) between P4SC and CO32-. The binding constant of the probe P4SC with CO32- was calculated as 2.56 × 1010 M-2. The probe P4SC providing rapid response time (~0.5 min) with a satisfactorily low detection limit (14.7 nM) may be useful as a valuable realistic sensor. The imaging studies on the liver cancer cells (HepG2) shows the great potential of the probe P4SC for the sensation of intracellular CO32- anions. Furthermore, the satisfactory recovery and RSD values obtained for water application confirming that the probe P4SC could be applied to sensing of CO32- ion.
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Affiliation(s)
- Sukriye Nihan Karuk Elmas
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Abdurrahman Karagoz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Duygu Aydin
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Fatma Nur Arslan
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Gokhan Sadi
- Department of Biology, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
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Karaarslan N, Yilmaz I, Akgun FS, Caliskan T, Ozbek H, Ates O. Systematic Evaluation of Desmopressin Administered to Patients with Aneurysmal Subarachnoid Hemorrhage in the Light of the Literature. Turk Neurosurg 2021; 30:787-792. [PMID: 29694665 DOI: 10.5137/1019-5149.jtn.23064-18.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AIM To discuss the management of patients with the syndrome of inappropriate antidiuretic hormone secretion (SIADH) developing after subarachnoid hemorrhage, in a comparative manner in the light of the literature. MATERIAL AND METHODS Without country or language restrictions, articles with high evidential value found in electronic databases were compared to our patients? DATA RESULTS After the literature review, three articles were included for systematic evaluation. Desmopressin was administered to the patients for the treatment of hyponatremia, volume contraction, and negative sodium balance caused by SIADH. However, it was not used for preventing re-bleeding. CONCLUSION To prevent the development of this complication (SIADH), the use of desmopressin, an analogue of vasopressin, is important in routine clinical practice.
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Affiliation(s)
- Numan Karaarslan
- Namık Kemal University, Scholl of Medicine, Department of Neurosurgery, Tekirdağ, Turkey
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Yilmaz I, Karaarslan N, Ozbek H. Practical Performance of Hippocampal Tissue Resection in Rats in Pharmacomolecular Research. Turk Neurosurg 2021; 31:112-118. [PMID: 33216343 DOI: 10.5137/1019-5149.jtn.31730-20.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AIM To explain how to resect hippocampal tissue in rats used as live mammalian subjects for the resection of fresh cerebral tissue in laboratories. MATERIAL AND METHODS Adult male Wistar-Albino rats (n=50) were used for this purpose. RESULTS The average bodyweight of the rats was 316.4 ± 11.71 g, and the average weight of the resected hippocampal tissues was 1.01 ± 0.03 g; however, there were no statistically significant differences between the body weights and the hippocampal tissue weights (p > 0.05). The hippocampal tissues to be used in the study were excised practically by preserving the original anatomical configuration without injury to the tissue. CONCLUSION This paper elucidates a simple, step-by-step methodology for performance in the laboratory in order to improve the standardization of hippocampal tissue dissection.
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Affiliation(s)
- Ibrahim Yilmaz
- Istanbul Medipol University, School of Medicine, Department of Medical Pharmacology, Istanbul, Turkey
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Aydin D, Karuk Elmas SN, Akin Geyik G, Bostanci A, Arslan FN, Savran T, Sadi G, Yilmaz I. 1,8-Naphthalimide appended propiolate-based fluorescent sensor for selective detection of cysteine over glutathione and homocysteine in living cells. NEW J CHEM 2021. [DOI: 10.1039/d1nj03317d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel 1,8-naphthalimide-based fluorogenic chemoprobe NASP was designed and developed as a sensor platform for the selective detection of biologically important cysteine over glutathione and homocysteine in living-cells.
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Affiliation(s)
- Duygu Aydin
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Sukriye Nihan Karuk Elmas
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Gonul Akin Geyik
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Aykut Bostanci
- Department of Biology, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Fatma Nur Arslan
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Tahir Savran
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Gokhan Sadi
- Department of Biology, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
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Karaarslan N, Yilmaz I, Sirin DY. Toxicity of the acetyl-para-aminophenol group of medicines to intact intervertebral disc tissue cells. Exp Ther Med 2020; 21:147. [PMID: 33456514 PMCID: PMC7791924 DOI: 10.3892/etm.2020.9578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/06/2020] [Indexed: 11/21/2022] Open
Abstract
The present study aimed to investigate the effects of paracetamol, an analgesic and antipyretic that is used in emergency departments and neurosurgery departments for postoperative pain management on intervertebral disc tissue. Paracetamol-treated human primary cell cultures and untreated cell cultures were compared using molecular analyses. Cell proliferation and gene expression were statistically analyzed. Cell proliferation was suppressed on days 10 (P=0.05) and 20 (P<0.05) in the paracetamol-treated groups. Gene expression of chondroadherin, matrix metalloproteinase (MMP)-7, MMP-13 and MMP-19 was higher in the paracetamol-treated samples while gene expression of Cartilage Oligomeric Matrix Protein and interleukin-1β was lower (P<0.05). Paracetamol, which appears innocuous compared with many analgesics, may increase the expression of MMPs, which serve a significant role in catabolic reactions and suppress the proliferation of intact intervertebral disc tissue cells.
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Affiliation(s)
- Numan Karaarslan
- Department of Neurosurgery, School of Medicine, Namik Kemal University, Tekirdag 59100, Turkey
| | - Ibrahim Yilmaz
- Department of Medical Pharmacology, School of Medicine, Istanbul Medipol University, Istanbul 34810, Turkey
| | - Duygu Yasar Sirin
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Namik Kemal University, Tekirdag 59100, Turkey
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Yilmaz I, Karaarslan N, Yasar Sirin D, Ozbek H. Pharmaco-molecular assessment of the effects of anandamide and its antagonists on hippocampal tissue in Wistar albino rats. Eur Rev Med Pharmacol Sci 2020; 24:11871-11882. [PMID: 33275258 DOI: 10.26355/eurrev_202011_23845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The members of the matrix metalloproteinase (MMP) family and cannabinoids (CBs) are reportedly associated with hippocampus-dependent memory functions. However, the effects of endogenously formed CBs on hippocampal long-term potentiation remain unknown. The present study aimed to investigate the changes in the gene and protein expression levels of matrix metallopeptidase 9 (MMP-9), phosphatase and tensin homolog (PTEN), and NOTCH receptor 1 (NOTCH1) in rat hippocampal tissues treated with anandamide (AEA), AM251, 6-iodopravadolin (AM630), and N-[4-{[(3,4-Dimethyl-5-isoxazolyl)amino]sulfonyl}phenyl] (ML193). MATERIALS AND METHODS The subjects were divided into 10 groups (n = five per group). The pharmaceuticals were administered via intraperitoneal injection once a day for seven days, except for the control group. The resected hippocampal tissues were then evaluated using a quantitative real-time polymerase chain reaction (RT-qPCR) and Western blot analysis. The data obtained were statistically analyzed, and p < 0.01 was considered statistically significant. RESULTS Contrary to the literature, the changes in MMP-9 expression were not statistically significant, but the changes in PTEN and NOTCH1 were. The findings of this in vivo experimental study revealed that the agonists and antagonists acting on the CB system have significant molecular effects on hippocampal tissue. CONCLUSIONS The changes in gene and protein expressions may be one of the reasons for the neurodegenerative processes observed in patients using these agonists and antagonists, whose effects on the CB system have not been fully explained yet. Our study can contribute to the literature as it is the first study investigating the MMP-9, PTEN and NOTCH1 gene and protein expression.
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Affiliation(s)
- I Yilmaz
- Department of Medical Pharmacology, Istanbul Medipol University School of Medicine, Turkey.
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Yilmaz I, Demirel C, Oguzkan Balci S, Akarsu E. Can Exercise Ameliorate Memory Impairment via PPAR Gamma Activation in Rats Fed A High-Fat Diet? Eur J Ther 2020. [DOI: 10.5152/eurjther.2020.20017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hurdogan O, Yilmaz I, Bay SB, Vural S, Tugcu D, Kebudi R, Gun F, Ozkan B, Bilgic B, Firat P, Yilmazbayhan D, Ozluk Y. DICER1 Hotspot Mutations in Pleuropulmonary Blastoma: A Case Series From a Tertiary Center. Pediatr Dev Pathol 2020; 23:204-209. [PMID: 31603374 DOI: 10.1177/1093526619878602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Pleuropulmonary blastoma (PPB) is a potentially aggressive, rare childhood neoplasia. We investigated histopathological features, survival, and DICER1 hotspot mutations among PPB patients. Archive records at our institution were reviewed, covering a 20-year period. Thirteen children (6 males and 7 females) with a mean age of 30.5 (range 6-83) months were included. The tumor subtypes were type I in 6 (46%), type II in 4 (31%), and type III in 3 (23%). Only tumors with type II and type III histology showed anaplasia (4/7, 57%). Median follow-up was 28 (range 9-216) months. Three-year overall survival rate was 83.3% and 3-year progression-free survival rate was 25%. Progression was seen in 60% (3/5) of type I and 66.7% (4/6) of type II and type III cases. Two patients died of disseminated disease at 9 and 44 months. Hotspot missense mutations on DICER1 gene were detected in all 11 patients with available tumor tissue. We found an additional novel germline loss-of-function mutation (c.5436dupT; p.E1813*) in 1 case. To the best of our knowledge, this is the first study to investigate hotspot missense mutations on DICER1 gene among the largest series of Turkish children with PPB.
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Affiliation(s)
- O Hurdogan
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - I Yilmaz
- Department of Pathology, Sultan Abdulhamid Han Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - S B Bay
- Division of Pediatric Hematology-Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - S Vural
- Department of Pediatric Oncology, Sisli Etfal Training and Research Hospital, Istanbul, Turkey
| | - D Tugcu
- Department of Pediatric Hematology-Oncology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - R Kebudi
- Division of Pediatric Hematology-Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey.,Department of Pediatric Oncology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - F Gun
- Department of Pediatric Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - B Ozkan
- Department of Thoracic Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - B Bilgic
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - P Firat
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - D Yilmazbayhan
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Y Ozluk
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Gültekin A, Ünüvar A, Karanfil G, Yilmaz I, Say R. Development of molecularly ımprınted polymer based quartz crystal mıcrobalance nanosensor for the determınatıon of tryptophan. Supramol Chem 2020. [DOI: 10.1080/10610278.2020.1746313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Aytaç Gültekin
- Faculty of Engineering, Department of Energy Systems Engineering, Karamanoğlu Mehmetbey University, Karaman, Turkey
| | | | - Gamze Karanfil
- Faculty of Engineering, Department of Energy Systems Engineering, Karamanoğlu Mehmetbey University, Karaman, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Özdağ Science Faculty, Karamanoğlu Mehmetbey University, Karaman, Turkey
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Kaya YE, Karaarslan N, Yilmaz I, Sirin DY, Akalan H, Ozbek H. A Study of the Effects of Metformin, a Biguanide Derivative, on Annulus Fibrosus and Nucleus Pulposus Cells. Turk Neurosurg 2020; 30:434-441. [PMID: 32239484 DOI: 10.5137/1019-5149.jtn.27785-19.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AIM To investigate the effects of metformin, a drug used widely for the treatment of type 2 diabetes mellitus, on human primary cell cultures prepared from uninjured segment of disc material intervertebral disk tissues. MATERIAL AND METHODS Primary cell cultures were prepared using the tissues of six patients (three males and three females) who had undergone lumbar microdiscectomy and sequestrectomy. Untreated samples served as the control group, and metformintreated samples served as the experimental group. All the samples were evaluated using an inverted light microscope, acridine orange/propidium iodide staining (AO/PI), and a fluorescence microscope. The cytostatic and cytotoxic effects of metformin, which was administered to the samples using a commercial MTT assay kit, were also evaluated. The data obtained were statistically assessed, and the alpha significance value was accepted as less than 0.05. In addition, for the groups’ changes in the expressions of chondroadherin (CHAD), cartilage oligomeric matrix protein (COMP), interleukin-1β (IL-1β) matrix metalloproteinase 7 (MMP-7), and matrix metalloproteinase 19 (MMP-19), genes related to the extracellular matrix synthesis and degradation were determined using gene-specific TaqMan Gene Expression Assays. RESULTS The administration of the drug adversely affected nucleus pulposus (NP)/annulus fibrosus (AF) cells and extracellular matrixâ€"like structures. This was statistically significant (p < 0.05). CONCLUSION Clinicians should not disregard the adverse effects of metformin, which is used widely in clinical practice, on the components of intervertebral disk tissues.
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Affiliation(s)
- Yasin Emre Kaya
- Abant Izzet Basal University School of Medicine, Department of Orthopaedics and Traumatology, Bolu, Turkey
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Arslan FN, Akin G, Karuk Elmas ŞN, Üner B, Yilmaz I, Janssen HG, Kenar A. FT-IR spectroscopy with chemometrics for rapid detection of wheat flour adulteration with barley flour. J Verbrauch Lebensm 2020. [DOI: 10.1007/s00003-019-01267-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Dogan M, Simsek AT, Yilmaz I, Karaarslan N. Evaluation of Empirical Antibiotic Treatment in Culture Negative Pyogenic Vertebral Osteomyelitis. Turk Neurosurg 2020; 29:816-822. [PMID: 31049918 DOI: 10.5137/1019-5149.jtn.25018-18.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM To investigate the efficacy of empirical antibiotic treatment in culture-negative pyogenic vertebral osteomyelitis (PVO) cases. MATERIAL AND METHODS The records of patients with culture-negative PVO who were treated at infectious diseases and neurosurgery outpatient clinics in the past four years were examined retrospectively. The control group comprised healthy subjects with similar age, gender, and body mass index but without pathology. The comparison of the groups was performed by analysis of variance. Statistical significance was accepted as p < 0.05. RESULTS No statistically significant difference in the white blood cell count and erythrocyte sedimentation rate was found between the spondylodiscitis and the healthy subject groups when the blood parameters obtained before and after the treatment (p > 0.05). However, a statistical significance was assessed in the results of the comparison for C-reactive protein (p < 0.05). CONCLUSION In the context of evidence-based medicine and the rational use of antibiotics, it is clear that antibiotics should be preferred according to the culture antibiogram results in the treatment of infectious diseases.
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Affiliation(s)
- Mustafa Dogan
- Namik Kemal University School of Medicine, Department of Infectious Diseases, Tekirdag, Turkey
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Arslan FN, Geyik GA, Koran K, Ozen F, Aydin D, Elmas ŞNK, Gorgulu AO, Yilmaz I. Fluorescence "Turn On-Off" Sensing of Copper (II) Ions Utilizing Coumarin-Based Chemosensor: Experimental Study, Theoretical Calculation, Mineral and Drinking Water Analysis. J Fluoresc 2020; 30:317-327. [PMID: 32016910 DOI: 10.1007/s10895-020-02503-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 01/27/2020] [Indexed: 10/25/2022]
Abstract
Herein, we report the preparation of a fluorescent sensor based on coumarin derivative for copper (II) ion sensing in CH3CN/HEPES media. 6,7-dihydroxy-3-(4-(trifluoro)methylphenyl)coumarin (HMAC) sensor was fabricated and analyzed by spectroscopic techniques. The sensor demonstrates "turn on-off" fluorescence quenching in the presence of copper (II) ions at 458 nm. A clear complex between the chemosensor HMAC and copper (II) ions was characterized by ESI-MS as well as the Job's method. Also, the limit of detection (LOD, 3σ/k) value was determined as 24.5 nM in CH3CN/HEPES (95/5, v/v) buffer media (pH = 7.0). This value is lower than the admissible level of copper (II) ions in drinking water (maximum 31.5 μM) reported by EU Water Framework Directive (WFD) and World Health Organization (WHO) guidelines. The theoretical calculations (density functional theory, DFT) have been performed for the geometric optimized structures. As a final stage, real sample analyses have successfully been performed by using HMAC, as well as ICP-OES method. The relative standard deviation for copper (II) in mineral and drinking water samples has been determined to be below 0.15% and recovery values are in the range of 95.48-109.20%.
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Affiliation(s)
- Fatma Nur Arslan
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.,Van't Hoff Institute for Molecular Sciences, Analytical-Chemistry Group, University of Amsterdam, Amsterdam, Netherlands
| | - Gonul Akin Geyik
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Kenan Koran
- Department of Chemistry, Firat University, Science Faculty, 23119, Elazıg, Turkey
| | - Furkan Ozen
- Department of Mathematics and Science, Akdeniz University, Faculty of Education, 07058, Antalya, Turkey
| | - Duygu Aydin
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Şükriye Nihan Karuk Elmas
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey
| | - Ahmet Orhan Gorgulu
- Department of Chemistry, Firat University, Science Faculty, 23119, Elazıg, Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
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Karuk Elmas SN, Dincer ZE, Erturk AS, Bostanci A, Karagoz A, Koca M, Sadi G, Yilmaz I. A novel fluorescent probe based on isocoumarin for Hg 2+ and Fe 3+ ions and its application in live-cell imaging. Spectrochim Acta A Mol Biomol Spectrosc 2020; 224:117402. [PMID: 31400747 DOI: 10.1016/j.saa.2019.117402] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/12/2019] [Accepted: 07/17/2019] [Indexed: 05/04/2023]
Abstract
Synthesis of the 2-amino-4-phenyl-6- (isocoumarin-3-yl) -3-cyanopyridine (APICP) containing both isocoumarin and pyridine ring in its structure was carried out, and this compound was characterized by ATR-FTIR, 1H NMR, and 13C NMR spectral techniques. A fluorescence sensor determining Hg2+ and Fe3+ ions in DMSO/HEPES buffer solution (9/1 v/v, 5 μM, pH 7.0) was developed using the synthesized compound, and the detection limits of the sensor with exquisite selectivity were calculated as 8.12 nM and 5.51 nM for Hg2+ and Fe3+ ions, respectively. Jobs plot method was used to determine the stoichiometry of APICP-Hg2+/Fe3+ complexes as 2:1 and FT-IR and ESI-MS methods confirmed the results. Besides, cell growth inhibitory potentials of the sensor over HepG2 cells and in vivo fluorescent cell imaging experiments were conducted. Findings revealed the relatively low cytotoxic effects of the synthesized sensor (IC50: 0.541 ± 0.039 mM), and it could be utilized as an intracellular imaging agent for the determination of Fe3+ and Hg2+ ions in biological systems.
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Affiliation(s)
- Sukriye Nihan Karuk Elmas
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry, Karaman 70100, Turkey
| | - Zeynep Emine Dincer
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry, Karaman 70100, Turkey
| | - Ali Serol Erturk
- Adıyaman University, Faculty of Pharmacy, Department of Analytical Chemistry, Adiyaman, Turkey
| | - Aykut Bostanci
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Biology, Karaman 70100, Turkey
| | - Abdurrahman Karagoz
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry, Karaman 70100, Turkey
| | - Murat Koca
- Adıyaman University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Adiyaman, Turkey
| | - Gökhan Sadi
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Biology, Karaman 70100, Turkey
| | - Ibrahim Yilmaz
- Karamanoglu Mehmetbey University, Kamil Ozdag Science Faculty, Department of Chemistry, Karaman 70100, Turkey.
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Aydin D, Gunay IB, Karuk Elmas SN, Savran T, Arslan FN, Sadi G, Yilmaz I. A simple and sensitive fluorescent sensor platform for Al3+ sensing in aqueous media and monitoring through combined PET and ESIPT mechanisms: practical applications in drinking water and bio-imaging. NEW J CHEM 2020. [DOI: 10.1039/d0nj02487b] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel hydrazide-based probe was designed and prepared as a fluorogenic “turn-on” sensor for Al3+ sensing in aqueous media.
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Affiliation(s)
- Duygu Aydin
- Department of Chemistry
- Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
| | - Ibrahim Berk Gunay
- Department of Chemistry
- Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
| | | | - Tahir Savran
- Department of Chemistry
- Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
| | - Fatma Nur Arslan
- Department of Chemistry
- Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
| | - Gokhan Sadi
- Department of Biology Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
| | - Ibrahim Yilmaz
- Department of Chemistry
- Kamil Ozdag Science Faculty
- Karamanoglu Mehmetbey University
- Karaman
- Turkey
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Karuk Elmas ŞN, Berk Gunay I, Karagoz A, Bostanci A, Sadi G, Yilmaz I. A Novel Fluorescent Probe Based on Perylene Derivative for Hg
2+
Ions and Biological Thiols and its Application in Live Cell Imaging and Theoretical Calculations. ELECTROANAL 2019. [DOI: 10.1002/elan.201900655] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Şükriye Nihan Karuk Elmas
- Karamanoglu Mehmetbey University, Kamil Ozdag Science FacultyDepartment of Chemistry Karaman 70100 Turkey
| | - Ibrahim Berk Gunay
- Karamanoglu Mehmetbey University, Kamil Ozdag Science FacultyDepartment of Chemistry Karaman 70100 Turkey
| | - Abdurrahman Karagoz
- Karamanoglu Mehmetbey University, Kamil Ozdag Science FacultyDepartment of Chemistry Karaman 70100 Turkey
| | - Aykut Bostanci
- Karamanoglu Mehmetbey UniversityKamil Ozdag Science Faculty, Department of Biology Karaman 70100 Turkey
| | - Gökhan Sadi
- Karamanoglu Mehmetbey UniversityKamil Ozdag Science Faculty, Department of Biology Karaman 70100 Turkey
| | - Ibrahim Yilmaz
- Karamanoglu Mehmetbey University, Kamil Ozdag Science FacultyDepartment of Chemistry Karaman 70100 Turkey
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Kaya YE, Karaarslan N, Sirin DY, Ozbek H, Kaplan N, Yilmaz I. Investigation of the Effects of Methylphenidate, an Amphetamine Derivative, on Intervertebral Disc Tissue Cell Cultures and Matrix Structures. Turk Neurosurg 2019; 29:734-742. [PMID: 31353439 DOI: 10.5137/1019-5149.jtn.26339-19.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
AIM To investigate the effects of methylphenidate (MPH), on intervertebral disc tissue (IVD) cell cultures and extracellular matrix structures. Changes in the expression of some important marker genes involved in anabolic and catabolic mechanisms of IVD extracellular matrix formation were also evaluated. MATERIAL AND METHODS Primary cultures of nucleus pulposus cells (NPCs) and annulus fibrosus cells (AFCs) were isolated from tissues obtained from the operated patients. Cell viability and proliferation were tested, and the cell surface morphologies were evaluated by microscopy. The expressions of the chondroadherin (CHAD), cartilage oligomeric matrix protein (COMP), interleukin-1 beta (IL-1β) and matrix metalloproteinase (MMP) -7 and MMP-19 genes were evaluated using the quantitative real-time polymerase chain reaction (qRT-PCR). A value of p < 0.05 was considered statistically significant. RESULTS The viability and proliferation of intervertebral disc tissue cells decreased in response to MPH treatment and the expression of the investigated genes also changed. CONCLUSION The data obtained from in-vitro studies may not directly adaptable to clinical applications. However, the fact that the central nervous system stimulant MPH can suppress proliferation of cells derived from IVD tissue should be considered carefully by clinicians.
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Affiliation(s)
- Yasin Emre Kaya
- Bolu Abant Izzet Baysal University, School of Medicine, Department of Orthopaedics and Traumatology, Bolu, Turkey
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Karuk Elmas SN, Gunay IB, Koran K, Ozen F, Aydin D, Arslan FN, Gorgulu AO, Yilmaz I. An ultrasensitive and selective ‘turn off’ fluorescent sensor with simple operation for the determination of trace copper (II) ions in water and various beverage samples. Supramol Chem 2019. [DOI: 10.1080/10610278.2019.1702195] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Ibrahim Berk Gunay
- Department of Chemistry, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Kenan Koran
- Department of Chemistry, Firat University, Elazıg, Turkey
| | - Furkan Ozen
- Department of Mathematics and Science, Akdeniz University, Antalya, Turkey
| | - Duygu Aydin
- Department of Chemistry, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Fatma Nur Arslan
- Department of Chemistry, Karamanoglu Mehmetbey University, Karaman, Turkey
- Van’t Hoff Institute for Molecular Sciences, Analytical-Chemistry Group, University of Amsterdam, Amsterdam, Netherlands
| | | | - Ibrahim Yilmaz
- Department of Chemistry, Karamanoglu Mehmetbey University, Karaman, Turkey
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50
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Affiliation(s)
- I Yilmaz
- Erciyes University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Kayseri, Turkey
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