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Akdemir G, Gorucu-Coskuner H. Comparison of different maxillary advancement protocols in patients with unilateral cleft lip and palate: a finite element analysis. Clin Oral Investig 2024; 28:260. [PMID: 38642152 PMCID: PMC11032273 DOI: 10.1007/s00784-024-05633-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 03/23/2024] [Indexed: 04/22/2024]
Abstract
OBJECTIVES The aim of this study was to evaluate the stress distributions and possible amount of movement in the maxillofacial region resulting from different maxillary advancement protocols in patients with unilateral cleft lip and palate. MATERIALS AND METHODS A unilateral cleft lip and palate model (CLP model) with Goslon score 4 was created for finite element analysis. Three different protocols were compared: Group 1: usage of a face mask with elastics placed at a 30? angle to the occlusal plane over a conventional acrylic plate; Group 2: usage of a face mask with elastics placed at a 30? angle to the occlusal plane over miniplates placed in the infrazygomatic crest region; Group 3: usage of elastic from the menton plate placed in the mandible to the infrazygomatic plates in the maxilla. RESULTS Dental effects were greater in the maxillary protraction protocol with a face mask over a conventional acrylic plate (Von Misses Stress Values; Group 1?=?cleft side:0.076, non-cleft side:0.077; Group 2?=?cleft side:0.004, non-cleft side: 0.003; Group 3?=?cleft side:0.0025; non-cleft side:0.0015), whereas skeletal effects were greater in maxillary protraction protocols with face mask using skeletal anchorage (Von Misses Stress Values; Group 1:0.008; Group 2:0.02; Group 3:0.0025). The maximum amount of counterclockwise rotation of the maxilla as a result of protraction was observed in traditional acrylic plate face mask protocol, and the minimum amount was observed by using elastics between infrazygomatic plates and menton plate. CONCLUSIONS In individuals with unilateral cleft lip and palate with Goslon score 4, it was observed that the skeletally anchored face mask caused more skeletal impact and displacement than both the traditional acrylic plate face mask model and the pure skeletally supported maxillary protraction model. CLINICAL RELEVANCE When planning maxillary protraction treatment in patients with cleft lip and palate, it should be considered that more movement in the sagittal plane might be expected on the cleft side than the non-cleft side, and miniplate and screws on the cleft side are exposed to more stress when using infrazygomatic plates as skeletal anchorage.
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Atalay C, Yazici AR. Effect of radiotherapy on the surface roughness and microhardness of contemporary bioactive restorative materials. Support Care Cancer 2024; 32:295. [PMID: 38635051 PMCID: PMC11026205 DOI: 10.1007/s00520-024-08476-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/31/2024] [Indexed: 04/19/2024]
Abstract
OBJECTIVE The aim of this in vitro study was to evaluate the effect of radiotherapy on the surface microhardness and roughness of different bioactive restorative materials. MATERIALS AND METHODS A total of 60-disc specimens (5 mm × 2 mm) were performed in four groups (n = 15 each) from Equia Forte HT, Cention N, Activa Bioactive Restorative, and Beautifil II. Following the polishing procedure (600, 1000, 1200 grit silicon carbide papers), all specimens were irradiated at 2 Gy per fraction, five times a week for a total dose of 70 Gy in 30 fractions over 7 weeks. Before and after the irradiation, the specimens were analyzed regarding the surface roughness and microhardness. Surface morphology was also analyzed by scanning electron microscopy. Kruskal-Wallis test, Wilcoxon test, and paired sample t-test were used for statistical analysis. RESULTS Significant differences were found after radiation with increased mean roughness of both Cention N (p = 0.001) and Beautifil II (p < 0.001) groups. In terms of microhardness, only the Beautifil II group showed significant differences with decreased values after radiation. There were statistically significant differences among the groups' roughness and microhardness data before and after radiotherapy (p < 0.05). CONCLUSION The effect of radiotherapy might differ according to the type of the restorative material. Although results may differ for other tested materials, giomer tends to exhibit worse behaviour in terms of both surface roughness and microhardness. CLINICAL RELEVANCE In patients undergoing head and neck radiotherapy, it should be taken into consideration that the treatment process may also have negative effects on the surface properties of anti-caries restorative materials.
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Affiliation(s)
- Cansu Atalay
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara, Turkey, 06230.
| | - A Ruya Yazici
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara, Turkey, 06230
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Yilmaz MT, Kahvecioglu A, Yazici G, Mohammadipour S, Kertmen N, Cifci GC, Zorlu F. Hypofractionated stereotactic re-irradiation for progressive glioblastoma: twelve years' experience of a single center. J Neurooncol 2024; 167:295-303. [PMID: 38383875 PMCID: PMC11023988 DOI: 10.1007/s11060-024-04607-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 02/14/2024] [Indexed: 02/23/2024]
Abstract
PURPOSE We aimed to evaluate the prognostic factors and the role of stereotactic radiotherapy (SRT) as a re-irradiation technique in the management of progressive glioblastoma. METHODS The records of 77 previously irradiated glioblastoma patients who progressed and received second course hypofractionated SRT (1-5 fractions) between 2009 and 2022 in our department were evaluated retrospectively. Statistical Package for the Social Sciences (SPSS) version 23.0 (IBM, Armonk, NY, USA) was utilized for all statistical analyses. RESULTS The median time to progression from the end of initial radiotherapy was 14 months (range, 6-68 months). The most common SRT schedule was 30 Gy (range, 18-50 Gy) in 5 fractions (range, 1-5 fractions). The median follow-up after SRT was 9 months (range, 3-80 months). One-year overall (OS) and progression-free survival (PFS) rates after SRT were 46% and 35%, respectively. Re-irradiation dose and the presence of pseudoprogression were both significant independent positive prognostic factors for both OS (p = 0.009 and p = 0.04, respectively) and PFS (p = 0.008 and p = 0.04, respectively). For PFS, progression-free interval > 14 months was also a prognostic factor (p = 0.04). The treatment was well tolerated without significant acute toxicity. During follow-up, radiation necrosis was observed in 17 patients (22%), and 14 (82%) of them were asymptomatic. CONCLUSION Hypofractionated SRT is an effective treatment approach for patients with progressive glioblastoma. Younger patients who progressed later than 14 months, received higher SRT doses, and experienced pseudoprogression following SRT had improved survival rates.
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Affiliation(s)
- Melek Tugce Yilmaz
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Alper Kahvecioglu
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gozde Yazici
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey.
| | - Sepideh Mohammadipour
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Neyran Kertmen
- Department of Medical Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gokcen Coban Cifci
- Radiology Department, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Faruk Zorlu
- Department of Radiation Oncology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Kara M, Kara Ö, Durmuş ME, Analay P, Şener FE, Çıtır BN, Korkmaz GO, Ünlü Z, Tiftik T, Gürçay E, Mülkoğlu C, Yalçınkaya B, Bağcıer F, Aksakal MF, Erdoğan K, Sertçelik A, Çakır B, Kaymak B, Özçakar L. The Relationship Among Probable SARCopenia, Osteoporosis and SuprasPinatus Tendon Tears in Postmenopausal Women: The SARCOSP Study. Calcif Tissue Int 2024; 114:340-347. [PMID: 38342790 PMCID: PMC10957602 DOI: 10.1007/s00223-024-01183-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/05/2024] [Indexed: 02/13/2024]
Abstract
We aimed to investigate the relationship among probable sarcopenia, osteoporosis (OP) and supraspinatus tendon (SSP) tears in postmenopausal women. Postmenopausal women screened/followed for OP were recruited. Demographic data, comorbidities, exercise/smoking status, and handgrip strength values were recorded. Probable sarcopenia was diagnosed as handgrip strength values < 20 kg. Achilles and SSP thicknesses were measured using ultrasound. Among 1443 postmenopausal women, 268 (18.6%) subjects had SSP tears. Unilateral tears were on the dominant side in 146 (10.1%) and on the non-dominant side in 55 women (3.8%). In contrast to those without, women with SSP tears had older age, lower level of education, thinner SSP and lower grip strength (all p < 0.05). In addition, they had higher frequencies of hypertension, hyperlipidemia, DM, OP and probable sarcopenia, but lower exercise frequency (all p < 0.05). Binary logistic regression modeling revealed that age [odds ratio (OR): 1.046 (1.024-1.067 95% CI)], hypertension [OR: 1.560 (1.145-2.124 95% CI)], OP [OR: 1.371 (1.022-1.839 95% CI)] and probable sarcopenia [OR: 1.386 (1.031-1.861 95% CI)] were significant predictors for SSP tears (all p < 0.05). This study showed that age, presence of hypertension, probable sarcopenia and OP were related with SSP tears in postmenopausal women. To this end, although OP appeared to be related to SSP tears, SSP tear/thickness evaluation can be recommended for OP patients, especially those who have other risk factors such as older age, higher BMI, hypertension, and probable sarcopenia.
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Affiliation(s)
- Murat Kara
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Özgür Kara
- Department of Physical Medicine and Rehabilitation, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Mahmut Esad Durmuş
- Department of Physical Medicine and Rehabilitation, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Pelin Analay
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.
| | - Fatıma Edibe Şener
- Department of Physical Medicine and Rehabilitation, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Beyza Nur Çıtır
- Department of Physical Medicine and Rehabilitation, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Gizem Olgu Korkmaz
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Zeliha Ünlü
- Department of Physical Medicine and Rehabilitation, Celal Bayar University, Manisa, Turkey
| | - Tülay Tiftik
- Department of Physical Medicine and Rehabilitation, Ankara Training and Research Hospital, Ankara, Turkey
| | - Eda Gürçay
- Department of Physical Medicine and Rehabilitation, University of Health Sciences, Gaziler Physical Medicine and Rehabilitation Education and Research Hospital, Ankara, Turkey
| | - Cevriye Mülkoğlu
- Department of Physical Medicine and Rehabilitation, Ankara Training and Research Hospital, Ankara, Turkey
| | - Berkay Yalçınkaya
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Fatih Bağcıer
- Department of Physical Medicine and Rehabilitation, Basaksehir Cam Sakura Hospital, Istanbul, Turkey
| | - Mahmud Fazıl Aksakal
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Kübra Erdoğan
- Department of Physical Medicine and Rehabilitation, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Ahmet Sertçelik
- Department of Public Health, Division of Epidemiology, Hacettepe University Medical School, Ankara, Turkey
| | - Banu Çakır
- Department of Public Health, Division of Epidemiology, Hacettepe University Medical School, Ankara, Turkey
| | - Bayram Kaymak
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Levent Özçakar
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
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Hassan Ibrahim AH, Cihangir N, Idil N, Aracagök YD. Adsorption of azo dye by biomass and immobilized Yarrowia lipolytica; equilibrium, kinetic and thermodynamic studies. World J Microbiol Biotechnol 2024; 40:140. [PMID: 38514578 PMCID: PMC10957587 DOI: 10.1007/s11274-024-03949-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024]
Abstract
One of the major environmental problems we have today is dye pollution, primarily caused by the textile industry. This pollution has detrimental effects on aquatic life, soil fertility, and human health. Many microbial biosorbents have been documented in the literature for the removal of a wide range of azo dyes commonly employed in the textile industry. However, Yarrowia lipolytica NBRC1658 is firstly used as both free and immobilized sorbents for the removal of Reactive yellow 18 (RY18), acid red 18 (AR18) and basic blue 41 (BB41) in this study. The effect of experimental conditions such as pH, biosorbent quantity, dye concentration, contact time, and temperature on dye removal capacity are examined. The research findings demonstrate that the adsorption capacity is higher in biomass compared to immobilized cells. The highest adsorption capacities are observed at pH 2 for RY18 and AR18, while pH 9 is optimal for BB41. Increasing the adsorbent dosage and initial concentration significantly improves the adsorption capacity. The Langmuir model best describes the adsorption process, indicating that the dye attaches to the biosorbent in a single layer, with a uniform biosorbent surface. The removal of the dye occurs through a chemical process on the biosorbent surface, as evidenced by the pseudo-second-order kinetic model. According to thermodynamic analysis, higher temperatures promote greater adsorption of dyes. Our study shows the effectiveness of Yarrowia lipolyica NBRC1658 as a biosorbent in the removal of a wide range of industrial dyes.
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Affiliation(s)
- Amal Hajo Hassan Ibrahim
- Department of Biology, Faculty of Science, Hacettepe University, Beytepe-Ankara, 06800, Türkiye.
| | - Nilüfer Cihangir
- Department of Biology, Faculty of Science, Hacettepe University, Beytepe-Ankara, 06800, Türkiye
| | - Neslihan Idil
- Department of Biology, Faculty of Science, Hacettepe University, Beytepe-Ankara, 06800, Türkiye
| | - Y Doruk Aracagök
- Department of Biology, Faculty of Science, Hacettepe University, Beytepe-Ankara, 06800, Türkiye
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Koc Vural U, Meral E, Ergin E, Gurgan S. Sixty-month comperative evaluation of a glass hybrid restorative and a composite resin in non-carious cervical lesions of bruxist individuals. Clin Oral Investig 2024; 28:207. [PMID: 38459231 PMCID: PMC10924002 DOI: 10.1007/s00784-024-05570-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 02/20/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To compare the clinical performance of a glass hybrid (GH) restorative and a nano-ceramic composite resin (CR) in the restoration of non-carious cervical lesions (NCCLs) of bruxist individuals in a 60-month randomized clinical trial. MATERIALS AND METHODS Twenty-five bruxist candidates having NCCLs were recruited in this clinical study. The depth, height (cervico-incisal), width (mesio-distal), internal angles of the NCCLs, degree of tooth wear (TWI) and gingival index (GI) were measured. One hundred-and-forty-eight NCCLs were restored either with a GH restorative (Equia Forte Fil) or a CR (Ceram.X One Universal). Modified USPHS criteria was used to evaluate restorations after 1 week and 12, 24, 36 and 60 months. Pearson's Chi-Square, Fisher's Exact and Cochran Q tests were run for analysis. Survival rates of the restorations were compared with Kaplan-Meier analysis (p < 0.05). RESULTS After 60 months, 97 restorations in 15 patients were examined. The recall rate was 60.0%. Retention rates were 73.5% for CR and 66.7% for GH. A total of 29 restorations were lost (13CR (26.5%), 16GH (33.3%)). There was not a significant difference between tested restoratives in retention (p = 0.464), marginal adaptation (p = 0.856) and marginal discoloration (p = 0.273). There was no relationship between internal angle, depth, height or width and retention of the GH or CR restorations (p > 0.05). The increase in retention loss and marginal discoloration of both restorations over time were significant (p < 0.001). Sensitivity or secondary caries were not detected after 60 months. CONCLUSION GH and nano-ceramic CR showed similar clinical performances in NCCLs after 60 months in patients with bruxism. CLINICAL SIGNIFICANCE After 60 months, CR and GH materials showed clinically acceptable performances in restoration of NCCLs in patients with bruxism.
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Affiliation(s)
| | - Ece Meral
- Hacettepe University, Ankara, Turkey.
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Yardımcı-Lokmanoğlu BN, Demir N, Porsnok D, Sırtbaş-Işık G, Cengiz E, Serel-Arslan S, Mutlu A. Are sucking patterns and early spontaneous movements related to later developmental functioning outcomes? A cohort study. Eur J Pediatr 2024; 183:1435-1446. [PMID: 38217695 PMCID: PMC10951042 DOI: 10.1007/s00431-024-05422-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
Sucking patterns and early spontaneous movements have an important role in the determination of later developmental problems, but the relationship of the two together with long-term outcomes has not been investigated. The objectives of this study were to (i) examine the relationship between sucking patterns using the Neonatal Oral Motor Assessment Scale (NOMAS) and fidgety movements and other movement patterns using detailed General Movements Assessment (GMA), and (ii) investigate the relationship between these early assessment methods and developmental functioning outcomes at later ages. We analyzed the NOMAS from 34 weeks' postmenstrual age up to 10 weeks post-term and GMA between 9 and 20 weeks post-term age, and the Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III) was applied for the developmental functioning outcomes to 62 infants (61%, 62/102) between 12 and 42 months of age. Among 102 infants at-risk, 70 (69%) showed a normal sucking pattern, and 85 (83%) had fidgety movements. The median Motor Optimality Score-Revised (MOS-R), as determined by GMA, of all infants was 24. The NOMAS was related to the MOS-R and its subcategories (p < 0.05) in all infants at-risk. The NOMAS, MOS-R and its subcategories were also related to cognitive, language, and motor development at later ages according to Bayley-III (p < 0.05). Conclusion: This longitudinal study showed that the quality of sucking patterns, fidgety movements, and MOS-R were related to later developmental functioning, indicating that abnormal sucking patterns, aberrant fidgety movements, and lower MOS-R might predict developmental disorders. What is Known: • Sucking patterns and early spontaneous movements in which central pattern generators play an important role are related. • Sucking patterns and early spontaneous movements might be used separately to predict developmental outcomes. What is New: • Sucking patterns and early spontaneous movements, when used together, were related to later developmental functioning, including cognitive, language, and motor development in at-risk infants. • Predictive value of sucking patterns was lower for each developmental functioning outcome than early spontaneous movements.
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Affiliation(s)
- Bilge N Yardımcı-Lokmanoğlu
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Developmental and Early Physiotherapy Unit, Ankara, Türkiye.
| | - Numan Demir
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Swallowing Disorders Unit, Ankara, Türkiye
| | - Doğan Porsnok
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Developmental and Early Physiotherapy Unit, Ankara, Türkiye
| | - Gülsen Sırtbaş-Işık
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Developmental and Early Physiotherapy Unit, Ankara, Türkiye
| | - Emre Cengiz
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Swallowing Disorders Unit, Ankara, Türkiye
| | - Selen Serel-Arslan
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Swallowing Disorders Unit, Ankara, Türkiye
| | - Akmer Mutlu
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Developmental and Early Physiotherapy Unit, Ankara, Türkiye
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Erman B, Bal SK, Aydoğmuş Ç, Ersoy GZ, Boztug K. A Novel Homozygous Six Base Pair Deletion Found in the NFATC2 Gene in a Patient with EBV-Associated Lymphoproliferation. J Clin Immunol 2024; 44:74. [PMID: 38427060 PMCID: PMC10907409 DOI: 10.1007/s10875-024-01675-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Affiliation(s)
- Baran Erman
- Institute of Child Health, Hacettepe University, Ankara, Türkiye.
- Can Sucak Research Laboratory for Translational Immunology, Hacettepe University, Ankara, Türkiye.
| | - Sevgi Köstel Bal
- St. Anna Children's Cancer Research Institute, Vienna, Austria
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
| | - Çiğdem Aydoğmuş
- Division of Pediatric Allergy and Immunology, Basaksehir Cam and Sakura City Hospital, University of Health Sciences, Istanbul, Turkey
| | - Gizem Zengin Ersoy
- Department of Pediatric Hematology Oncology and Pediatric Bone Marrow Transplantation, Medical Park Bahçelievler Hospital, Altınbaş University, İstanbul, Turkey
| | - Kaan Boztug
- St. Anna Children's Cancer Research Institute, Vienna, Austria
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- St. Anna Children's Hospital, Vienna, Austria
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
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Baysal İ, Örsten S, Cengiz G, Ünal E, Doğrul AB, Çiftçi T, Çiftçi SY, Akinci D, Akhan O. Assessing the Potential Apoptotic Effects of Different Hydatid Cyst Fluids on Human Healthy Hepatocytes and Hepatocellular Carcinoma Cells. Acta Parasitol 2024; 69:700-709. [PMID: 38372909 PMCID: PMC11001659 DOI: 10.1007/s11686-024-00797-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 01/09/2024] [Indexed: 02/20/2024]
Abstract
Cystic Echinococcosis (CE) is a zoonotic infection caused by the larval form of Echinococcus granulosus in humans. Emerging evidence suggests an intriguing inverse association between E. granulosus infection and the occurrence of cancer. This study aimed to investigate the influence of diverse host-derived hydatid cyst fluids (HCF) with distinct genotypes on human liver hepatocytes (HC) and hepatocellular carcinoma cells (HepG2). Specifically, we examined their effects on cell proliferation, apoptosis sensitivity (BAX/BCL-2), apoptosis-related p53 expression, and the expression of cancer-related microRNA (hsa-miR-181b-3p). Cell proliferation assays, real-time PCR, and ELISA studies were conducted to evaluate potential anti-cancer properties. The findings revealed that animal-origin HCF (G1(A)) induced direct cell death by augmenting the susceptibility of HepG2 cells to apoptosis. Treatment with both G1(A) and G1(H) HCF sensitized HepG2 and HC cell lines to apoptosis by modulating the BAX/BCL-2 ratio, accompanied by upregulation of the p53 gene. Additionally, G1(A) HCF and human-derived HCFs (G1(H), G7(H)) reduced the expression of miR-181b-3p in HepG2 cells. Consequently, this study demonstrates the potential anti-cancer effect of HCF in HepG2 cells and provides the first comparative assessment of HCFs from human and animal sources with diverse genotypes, offering novel insights into this field.
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Affiliation(s)
- İpek Baysal
- Vocational School of Health Services, Hacettepe University, 06100, Ankara, Turkey.
| | - Serra Örsten
- Vocational School of Health Services, Hacettepe University, 06100, Ankara, Turkey
| | - Görkem Cengiz
- Vocational School of Health Services, Yüksek İhtisas University, 06291, Ankara, Turkey
| | - Emre Ünal
- Faculty of Medicine, Department of Radiology, Hacettepe University, 06100, Ankara, Turkey
| | - Ahmet Bülent Doğrul
- Faculty of Medicine, Department of General Surgery, Hacettepe University, 06100, Ankara, Turkey
| | - Türkmen Çiftçi
- Faculty of Medicine, Department of Radiology, Hacettepe University, 06100, Ankara, Turkey
| | - Samiye Yabanoğlu Çiftçi
- Faculty of Pharmacy, Department of Biochemistry, Hacettepe University, 06100, Ankara, Turkey
| | - Devrim Akinci
- Faculty of Medicine, Department of Radiology, Hacettepe University, 06100, Ankara, Turkey
| | - Okan Akhan
- Faculty of Medicine, Department of Radiology, Hacettepe University, 06100, Ankara, Turkey
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Okumuş HG, Akdemir D, Temeltürk RD, Öksüzoğlu ME. Impulsivity in adolescent girls diagnosed with trichotillomania: an evaluation of clinical and neuropsychological characteristics. Eur Child Adolesc Psychiatry 2024; 33:617-627. [PMID: 38194080 PMCID: PMC10869386 DOI: 10.1007/s00787-023-02354-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/05/2023] [Indexed: 01/10/2024]
Abstract
The aim of this study is to compare the clinical and neuropsychological features of impulsivity in adolescent girls with trichotillomania (TTM) and healthy controls, and to assess the relationships between the severity of TTM and the impulsivity/concomitant symptoms of anxiety and depression. The study sample consisted of 43 adolescent girls who were 12 to 18 years old. The Kiddie-Schedule for Affective Disorders and Schizophrenia for School Age Children-Present and Lifetime Version DSM-5 (K-SADS-PL) was administered to the adolescents and their parents. All of the participants completed a sociodemographic data form, the Revised Children's Anxiety and Depression Scale-Child Version (RCADS-CV), the Barratt Impulsiveness Scale-Brief (BIS-Brief), and the Massachusetts General Hospital Hairpulling Scale (MGH-HPS). The Eriksen Flanker task, the Stop Signal Reaction Time (SSRT) task, the Go/No-Go task, and the Balloon Analog Risk Task (BART) were used to assess behavioral impulsivity. The adolescents with TTM reported higher levels of impulsivity and anxiety/depression symptoms than the healthy controls, and they also performed worse on the behavioral tasks. While there were no relationships between clinical and behavioral impulsivity and TTM severity, social anxiety symptoms were the most important predictor of the severity of TTM. It seems important to better understand the role of impulsivity in the onset and persistence of TTM symptoms in adolescents.
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Kisacik S, Ozler CO, Olmez S. Molar incisor hypomineralization and oral health-related quality of life: a sample of 8-12-years-old children. Clin Oral Investig 2024; 28:105. [PMID: 38244077 PMCID: PMC10799822 DOI: 10.1007/s00784-024-05490-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
OBJECTIVES The study aimed to evaluate the impact of molar incisor hypomineralization (MIH) and tooth sensitivity on the oral health in terms of the quality of life (OHRQoL). In addition, the impact of tooth maturity on tooth sensitivity was evaluated in the study. MATERIALS AND METHODS Children aged 8-12 years with and without MIH participated in this descriptive cross-sectional study. They were chosen through the convenience sample technique. The Pediatric-Oral-Health-related-Quality-of-Life (POQL) scale was used to assess OHRQoL. The presence of the MIH and decayed, filled and missing teeth due to caries (using dmft/s, DMFT/S indexes) were recorded. The tooth sensitivity and dental maturity status were evaluated with the Shiff-Cold-Air-Sensitivity-Scale (SCASS) and Demirjian-method, respectively. Statistical analysis of the data was performed by Pearson Chi-Square Test and Mann-Whitney U test (p<0.05). RESULTS In this study, the participants were a total of 260 children, half were affected by the MIH. Their mean POQL scores were higher than those of the children without MIH with a statistically significantly difference in the total child scale score (p=0.014). Among the children with the MIH, child total QoL score was found to be higher in SCASS positive response group (p=0.011). The teeth with MIH (p<0.001) showed higher response to the stimulus. According to the dental age and dental maturity categories of the children with MIH, the total child scale score was found to be higher in the SCASS category (p=0.011), and the response status to the SCASS was statistically significant (p=0.042 and p=0.05, respectively). CONCLUSIONS Among the children with MIH, the OHRQoL was found to be negatively affected. The teeth with the MIH tend to reveal more tooth sensitivity than healthy teeth. Many conditions such as having MIH, and tooth sensitivity might have an impact on the OHRQoL. In addition, more sensitivity to the stimulus was observed in the teeth with lower tooth maturity status; the dental age and dental maturity might have effects on tooth sensitivity. CLINICAL RELEVANCE Considering the negative impacts due to MIH, the evaluation of OHRQoL is critical for dentists to employ a well-defined guide in their clinical decisions.
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Affiliation(s)
- Seyma Kisacik
- Faculty of Dentistry, Department of Pediatric Dentistry, Hacettepe University, 06100, Altindag, Ankara, Turkey.
| | - Cansu Ozsin Ozler
- Faculty of Dentistry, Department of Pediatric Dentistry, Hacettepe University, 06100, Altindag, Ankara, Turkey
| | - Seval Olmez
- Faculty of Dentistry, Department of Pediatric Dentistry, Hacettepe University, 06100, Altindag, Ankara, Turkey
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Eroğlu İ, Iremli BG, Idilman IS, Yuce D, Lay I, Akata D, Erbas T. Nonalcoholic Fatty Liver Disease, Liver Fibrosis, and Utility of Noninvasive Scores in Patients With Acromegaly. J Clin Endocrinol Metab 2023; 109:e119-e129. [PMID: 37590020 PMCID: PMC10735300 DOI: 10.1210/clinem/dgad490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/19/2023] [Accepted: 08/16/2023] [Indexed: 08/18/2023]
Abstract
CONTEXT Nonalcoholic fatty liver disease (NAFLD) is a metabolical disorder and can lead to liver fibrosis. Because it is commonly seen, several noninvasive scores (NS) have been validated to identify high-risk patients. Patients with NAFLD have been shown to have higher serum angiopoietin-like protein-8 (ANGPTL-8) levels. OBJECTIVE The risk of NAFLD is known insufficiently in acromegaly. Moreover, the utility of the NS and the link between NAFLD and ANGPTL-8 in acromegaly is unknown. METHODS Thirty-two patients with acromegaly (n = 15, active [AA] and n = 17, controlled acromegaly [CA]) and 19 healthy controls were included. Magnetic resonance imaging (MRI)-proton density fat fraction (PDFF) was used to evaluate hepatic steatosis, and magnetic resonance elastography to evaluate liver stiffness measurement. ANGPTL-8 levels were measured with ELISA. RESULTS Median liver MRI-PDFF and NAFLD prevalence in AA were lower than in CA (P = .026 and P < .001, respectively). Median magnetic resonance elastography-liver stiffness measurement were similar across groups. Of the NS, visceral adiposity index, fatty liver index, hepatic steatosis index, and triglyceride-glucose index (TyG) all showed positive correlation with the liver MRI-PDFF in the control group. However, only TyG significantly correlated with liver fat in the AA and CA groups. There was no correlation between traditional NAFLD risk factors (body mass index, waist circumference, C-reactive protein, homeostasis model assessment for insulin resistance, visceral adipose tissue) and liver MRI-PDFF in the AA and CA. Patients with acromegaly with NAFLD had lower GH, IGF-1, and ANGPTL-8 levels than in those without NAFLD (P = .025, P = .011, and P = .036, respectively). CONCLUSION Active acromegaly may protect from NAFLD because of high GH. In patients with acromegaly, NAFLD risk cannot be explained with classical risk factors; hence, additional risk factors must be identified. TyG is the best score to evaluate NAFLD risk. Lower ANGPTL-8 in patients with acromegaly and NAFLD implies this hormone may be raised because of insulin resistance rather than being a cause for NAFLD.
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Affiliation(s)
- İmdat Eroğlu
- Department of Internal Medicine, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Burcin Gonul Iremli
- Department of Internal Medicine, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
- Department of Endocrinology and Metabolism, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Ilkay S Idilman
- Department of Radiology, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Deniz Yuce
- Department of Preventive Oncology, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Incilay Lay
- Department of Biochemistry, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Deniz Akata
- Department of Radiology, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
| | - Tomris Erbas
- Department of Internal Medicine, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
- Department of Endocrinology and Metabolism, Hacettepe University, School of Medicine, 06230, Ankara, Turkey
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Sagiroglugil M, Yasar F. Catalytic Reaction Mechanism of Bacterial GH92 α-1,2-Mannosidase: A QM/MM Metadynamics Study. Chemphyschem 2023; 24:e202300628. [PMID: 37782219 DOI: 10.1002/cphc.202300628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/23/2023] [Accepted: 10/01/2023] [Indexed: 10/03/2023]
Abstract
The catalytic mechanism of aC a + 2 ${C{a}^{+2}}$ -dependent family 92 α ${{\rm \alpha }}$ -mannosidase, which is abundantly present in human gut flora and malfunctions leading to the lysosomal storage disease α-mannosidosis, has been investigated using quantum mechanics/molecular mechanics and metadynamics methods. Computational efforts show that the enzyme follows a conformational itinerary of and theC a + 2 ${C{a}^{+2}}$ ion serves a dual purpose, as it not only distorts the sugar ring but also plays a crucial role in orchestrating the arrangement of catalytic residues. This orchestration, in turn, contributes to the facilitation of O S 2 ${{{\rm \ }}^{{\rm O}}{{\rm S}}_{2}}$ conformers for the ensuing reaction. This mechanistic insight is well-aligned with the experimental predictions of the catalytic pathway, and the computed energies are of the same order of magnitude as the experimental estimations. Hence, our results extend the mechanistic understanding of glycosidases.
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Affiliation(s)
- Mert Sagiroglugil
- Department of Physics Engineering, Hacettepe University, Üniversiteler Mahallesi Beytepe Kampüsü, 06800, Ankara, Turkey
- Current Address: Departament de Química Inorgànica i Orgànica (Seccióde Química Orgànica), Institut de Química Teòrica i Computacional (IQTCUB) Universitat de Barcelona, Carrer de Martí i Franquès, 1, 08028, Barcelona, Spain
| | - Fatih Yasar
- Department of Physics Engineering, Hacettepe University, Üniversiteler Mahallesi Beytepe Kampüsü, 06800, Ankara, Turkey
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Askerbeyli Örs S, Küçükkaya Eren S. Effects of different treatment modalities on biomechanical behavior of maxillary incisors with external invasive cervical resorption at different progression levels. Dent Traumatol 2023; 39:605-615. [PMID: 37424177 DOI: 10.1111/edt.12868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND/AIM This study aimed to evaluate the biomechanical behavior of maxillary incisors with external invasive cervical resorption (EICR) at different progression levels after receiving different modes of treatment under occlusal forces using finite element analysis (FEA). MATERIALS AND METHODS Three-dimensional (3D) models of intact maxillary central incisors were constructed and modified to include EICR cavities with different progression levels in the buccal cervical areas. The EICR cavities confined to dentin were repaired using Biodentine™ (Septodont Ltd., Saint Maur des Fausse ́s, France), resin composite, or glass ionomer cement (GIC) . Additionally, EICR cavities with pulp invasion requiring direct pulp capping were simulated as repaired using Biodentine only or 1 mm thick Biodentine and either resin composite or GIC for the rest of the cavity. Moreover, models with root canal treatment and EICR defects repaired using Biodentine, resin composites, or GIC were also generated. A force of 240 N was applied to the incisal edge. The principal stresses in the dentin were evaluated. RESULTS GIC showed more favorable results than the other materials in EICR cavities confined to the dentin. However, Biodentine alone resulted in more favorable minimum principal stresses (Pmin ) compared to other materials in EICR cavities with close pulp proximity. Exceptionally, the models localized in the coronal third of the root with a circumferential extension of the cavity >90° showed more favorable results for GIC. The presence of root canal treatment had no significant effect on stress values. CONCLUSIONS Based on this FEA study the use of GIC in EICR lesions confined to the dentin is recommended. However, Biodentine may be a better option for restoring EICR lesions close to the pulp with or without root canal treatment. Except when the circumferential extension of the cavity is >90°, the use of GIC may be more advantageous.
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Affiliation(s)
- Sevinc Askerbeyli Örs
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Selen Küçükkaya Eren
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
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Kember I, Sanajou S, Kilicarslan B, Girgin G, Baydar T. Evaluation of neopterin levels and kynurenine pathway in patients with acute coronary syndrome. Acute Crit Care 2023; 38:325-332. [PMID: 37652862 PMCID: PMC10497888 DOI: 10.4266/acc.2023.00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 06/05/2023] [Accepted: 06/30/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Coronary atherosclerosis is the leading cause of coronary artery disease. Several investigations have indicated that tear-sensitive plaques contain macrophages and T cells. Neopterin is an essential cellular immune response biomarker. The main goal of this study was to see if there were any changes in biomarkers like unconjugated pteridines, neopterin, and biopterin, as well as kynurenine pathway enzymes like indoleamine 2,3-dioxygenase (IDO), which catalyzes the rate-limiting step in tryptophan degradation, in patients with the acute coronary syndrome (ACS) caused by angiographic atherosclerosis. METHODS High-performance liquid chromatography was used to determine the amounts of neopterin, biopterin, and creatinine in urine samples, as well as tryptophan and kynurenine in serum samples. The enzyme-linked immunosorbent assay was used to assess the amounts of neopterin in serum samples. The measured parameters were evaluated between ACS patients and controls. RESULTS The measured levels of neopterin, biopterin and the kynurenine to tryptophan ratio reflecting IDO activity, and the specifically known biomarkers such as cardiac troponin, creatine kinase, myoglobin, and natriuretic peptides are statistically higher in ACS patients compared to control subjects. On the other hand, the measured parameters are inadequate to classify the conventional kinds of ACS, ST-elevation- and non-ST-elevation- myocardial infarction. CONCLUSIONS The study found that determining and using neopterin and IDO parameters as biomarkers in individuals with the ACS can support traditional biomarkers. However, it can be concluded that evaluating pteridine biomarkers solely have no privilege to clinical findings in ACS diagnosis and classification.
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Affiliation(s)
- Ibrahim Kember
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye
- Department of Emergency Medicine, Tuzla Devlet Hastanesi, Istanbul, Türkiye
| | - Sonia Sanajou
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye
| | - Bilge Kilicarslan
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye
| | - Gözde Girgin
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye
| | - Terken Baydar
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye
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Demir S, Yet I, Sardan Ekiz M, Sag E, Bilginer Y, Celikbicak O, Lay I, Ozen S. Plasma Proteomic Analysis Reveals the Potential Role of Lectin and Alternative Complement Pathways in IgA Vasculitis Pathogenesis. Diagnostics (Basel) 2023; 13:diagnostics13101729. [PMID: 37238213 DOI: 10.3390/diagnostics13101729] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND IgA vasculitis (IgAV) is the most common form of childhood vasculitis. A better understanding of its pathophysiology is required to identify new potential biomarkers and treatment targets. OBJECTIVE to assess the underlying molecular mechanisms in the pathogenesis of IgAV using an untargeted proteomics approach. METHODS Thirty-seven IgAV patients and five healthy controls were enrolled. Plasma samples were collected on the day of diagnosis before any treatment was initiated. We used nano-liquid chromatography-tandem mass spectrometry (nLC-MS/MS) to investigate the alterations in plasma proteomic profiles. For the bioinformatics analyses, databases including Uniprot, PANTHER, KEGG, Reactome, Cytoscape, and IntAct were used. RESULTS Among the 418 proteins identified in the nLC-MS/MS analysis, 20 had significantly different expressions in IgAV patients. Among them, 15 were upregulated and 5 were downregulated. According to the KEGG pathway and function classification analysis, complement and coagulation cascades were the most enriched pathways. GO analyses showed that the differentially expressed proteins were mainly involved in defense/immunity proteins and the metabolite interconversion enzyme family. We also investigated molecular interactions in the identified 20 proteins of IgAV patients. We extracted 493 interactions from the IntAct database for the 20 proteins and used Cytoscape for the network analyses. CONCLUSION Our results clearly suggest the role of the lectin and alternate complement pathways in IgAV. The proteins defined in the pathways of cell adhesion may serve as biomarkers. Further functional studies may lead the way to better understanding of the disease and new therapeutic options for IgAV treatment.
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Affiliation(s)
- Selcan Demir
- Department of Pediatric Rheumatology, Hacettepe University Medical Faculty, 06230 Ankara, Turkey
| | - Idil Yet
- Department of Bioinformatics, Graduate School of Health Sciences, Hacettepe University, 06230 Ankara, Turkey
| | - Melis Sardan Ekiz
- Advanced Technologies Application and Research Center (HUNITEK), Hacettepe University, 06230 Ankara, Turkey
| | - Erdal Sag
- Department of Pediatric Rheumatology, Hacettepe University Medical Faculty, 06230 Ankara, Turkey
| | - Yelda Bilginer
- Department of Pediatric Rheumatology, Hacettepe University Medical Faculty, 06230 Ankara, Turkey
| | - Omur Celikbicak
- Department of Chemistry, Hacettepe University, 06230 Ankara, Turkey
| | - Incilay Lay
- Department of Biochemistry, Hacettepe University Medical Faculty, 06230 Ankara, Turkey
| | - Seza Ozen
- Department of Pediatric Rheumatology, Hacettepe University Medical Faculty, 06230 Ankara, Turkey
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Örsten S, Şahin C, Yılmaz E, Akyön Y. First molecular detection of Entamoeba gingivalis subtypes in individuals from Turkey. Pathog Dis 2023; 81:ftad017. [PMID: 37442621 PMCID: PMC10553396 DOI: 10.1093/femspd/ftad017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/28/2023] [Accepted: 07/12/2023] [Indexed: 07/15/2023] Open
Abstract
Entamoeba gingivalis is a parasitic protozoan that colonizes the human oral cavity and there are two subtypes (ST1 and ST2) that have been identified to date. However, there are no reports on the molecular detection or characterization of E. gingivalis in Turkey. The objective of this study was to detect the presence of E. gingivalis in Turkish healthy individuals and those with periodontal disease and to subtype the isolates using molecular techniques. Samples from the oral cavity of 94 individuals were taken and the presence of E. gingivalis was determined by PCR using primers for SsrRNA and the amplicons were then confirmed by DNA sequencing. Each participant completed a questionnaire that included demographic data, habits and lifestyle, as well as health status. The presence of E. gingivalis was detected in a total of 19 samples (11 patients and eight healthy individuals). Molecular characterization determined that 12 samples belonged to ST1 and seven samples belonged to ST2. The presence of E. gingivalis was higher in patients with periodontal disease than in healthy individuals, and this association was statistically significant (P < .05). This study constitutes the first report of molecular detection and subtyping of E. gingivalis in Turkey.
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Affiliation(s)
- Serra Örsten
- Hacettepe University, Vocational School of Health Services, Adnan Saygun Street, Ankara, Turkey
| | - Cem Şahin
- Hacettepe University, Vocational School of Health Services, Adnan Saygun Street, Ankara, Turkey
- Hacettepe University, Hacettepe Beytepe Hospital, Ankara, Turkey
| | - Engin Yılmaz
- Hacettepe University, Faculty of Medicine, Department of Medical Biology, Ankara, Turkey
| | - Yakut Akyön
- Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
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Idil N, Bakhshpour M, Perçin I, Mattiasson B. Whole Cell Recognition of Staphylococcus aureus Using Biomimetic SPR Sensors. Biosensors (Basel) 2021; 11:140. [PMID: 33947112 PMCID: PMC8145927 DOI: 10.3390/bios11050140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 01/09/2023]
Abstract
Over the past few decades, a significant increase in multi-drug-resistant pathogenic microorganisms has been of great concern and directed the research subject to the challenges that the distribution of resistance genes represent. Globally, high levels of multi-drug resistance represent a significant health threat and there is a growing requirement of rapid, accurate, real-time detection which plays a key role in tracking of measures for the infections caused by these bacterial strains. It is also important to reduce transfer of resistance genes to new organisms. The, World Health Organization has informed that millions of deaths have been reported each year recently. To detect the resistant organisms traditional detection approaches face limitations, therefore, newly developed technologies are needed that are suitable to be used in large-scale applications. In the present study, the aim was to design a surface plasmon resonance (SPR) sensor with micro-contact imprinted sensor chips for the detection of Staphylococcus aureus. Whole cell imprinting was performed by N-methacryloyl-L-histidine methyl ester (MAH) under UV polymerization. Sensing experiments were done within a concentration range of 1.0 × 102-2.0 × 105 CFU/mL. The recognition of S. aureus was accomplished by the involvement of microcontact imprinting and optical sensor technology with a detection limit of 1.5 × 103 CFU/mL. Selectivity of the generated sensor was evaluated through injections of competing bacterial strains. The responses for the different strains were compared to that of S. aureus. Besides, real experiments were performed with milk samples spiked with S. aureus and it was demonstrated that the prepared sensor platform was applicable for real samples.
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Affiliation(s)
- Neslihan Idil
- Department of Biology, Hacettepe University, 06800 Ankara, Turkey; (N.I.); (I.P.)
| | | | - Işık Perçin
- Department of Biology, Hacettepe University, 06800 Ankara, Turkey; (N.I.); (I.P.)
| | - Bo Mattiasson
- Division of Biotechnology, Lund University, 22100 Lund, Sweden
- Indienz AB, Annebergs Gård, 26873 Billeberga, Sweden
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Sari S, Avci A, Koçak E, Kart D, Sabuncuoğlu S, Doğan İS, Özdemir Z, Bozbey İ, Karakurt A, Saraç S, Dalkara S. Antibacterial azole derivatives: Antibacterial activity, cytotoxicity, and in silico mechanistic studies. Drug Dev Res 2020; 81:1026-1036. [PMID: 33216362 DOI: 10.1002/ddr.21721] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/13/2020] [Accepted: 07/03/2020] [Indexed: 01/09/2023]
Abstract
Azole antifungal drugs are commonly used in antifungal chemotherapy. Antibacterial effects of some topical antifungals, such as miconazole and econazole, have lately been revealed, which suggests a promising venue in antimicrobial chemotherapy. In this study, we tested an in-house azole collection with antifungal properties for their antibacterial activity to identify dual-acting hits using the broth microdilution method. The in vitro screen yielded a number of potent derivatives against gram-positive bacteria, Enterococcus faecalis and Staphylococcus aureus. Compound 73's minimum inhibitory concentration (MIC) value less than 1 μg/ml against S. aureus; however, none of the compounds showed noteworthy activity against methicillin-resistant S. aureus (MRSA). All the active compounds were found safe at their MIC values against the healthy fibroblast cells in the in vitro cytotoxicity test. Molecular docking studies of the most active compounds using a set of docking programs with flavohemoglobin (flavoHb) structure, the proposed target of the azole antifungals with antibacterial activity, presented striking similarities regarding the binding modes and interactions between the tested compounds and the antifungal drugs with crystallographic data. In addition to being noncytotoxic, the library was predicted to be drug-like and free of pan-assay interference compounds (PAINS). As a result, the current study revealed several potential azole derivatives with both antifungal and antibacterial activities. Inhibition of bacterial flavoHb was suggested as a possible mechanism of action for the title compounds.
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Affiliation(s)
- Suat Sari
- Department of Pharmaceutical Chemistry, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - Ahmet Avci
- Department of Pharmaceutical Chemistry, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - Ebru Koçak
- Department of Pharmaceutical Chemistry, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - Didem Kart
- Department of Pharmaceutical Microbiology, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - Suna Sabuncuoğlu
- Department of Pharmaceutical Toxicology, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - İnci Selin Doğan
- Department of Pharmaceutical Chemistry, Karadeniz Technical University Faculty of Pharmacy, Trabzon, Turkey
| | - Zeynep Özdemir
- Department of Pharmaceutical Chemistry, İnönü University Faculty of Pharmacy, Malatya, Turkey
| | - İrem Bozbey
- Department of Pharmaceutical Chemistry, Erzincan Binali Yıldırım University Faculty of Pharmacy, Erzincan, Turkey
| | - Arzu Karakurt
- Department of Pharmaceutical Chemistry, İnönü University Faculty of Pharmacy, Malatya, Turkey
| | - Selma Saraç
- Department of Pharmaceutical Chemistry, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
| | - Sevim Dalkara
- Department of Pharmaceutical Chemistry, Hacettepe University Faculty of Pharmacy, Ankara, Turkey
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Unal D, Unal MF, Alikasifoglu M, Cetinkaya A. Genetic Variations in Attention Deficit Hyperactivity Disorder Subtypes and Treatment Resistant Cases. Psychiatry Investig 2016; 13:427-33. [PMID: 27482244 PMCID: PMC4965653 DOI: 10.4306/pi.2016.13.4.427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 12/26/2015] [Accepted: 12/30/2015] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE ObjectiveaaWe evaluated the distribution of alpha-2A adrenergic receptor (ADRA2A) and catechol-o-methyltransferase (COMT) single nucleotide polymorphisms (SNPs) among ADHD subtypes and other homogeneous patient populations including treatment-resistant cases and patients with high symptom severity. METHODS Methodsaa121 ADHD patients aged 6-18 years were included in the study. Diagnosis and subtypes designation were confirmed using the Kiddie Schedule for Affective Disorders and Schizophrenia (K-SADS) and symptoms were evaluated using the Conners' Parent (CPRS) and Teacher Rating Scales (CTRS). The response to methylphenidate was assessed objectively using the Clinical Global Impression-Severity Scale (CGI-S) and Global Assessment of Functioning Scale (GAS) as well as the Continuous Performance (CPT) and Trail Making tests (TMT-A, B). Patients were genotyped for ADRA2A (rs1800544) and COMT (rs4680) SNPs by PCR/RFLP and compared to a gender-matched control group. RESULTS Although there was no association of COMT (rs4680) SNP with symptoms or diagnosis, the ADRA2A polymorphism, low socioeconomic status (SES), and comorbid psychiatric diagnosis were all associated with poor response to methylphenidate in logistic regression analysis. CONCLUSION Clinicians may consider adjuvant strategies when these negative factors are present to increase the success of tailored ADHD treatments in the future.
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Affiliation(s)
- Dilek Unal
- Department of Child and Adolescent Psychiatry, Hacettepe University School of Medicine, Ankara, Turkey
| | - Mehmet Fatih Unal
- Department of Child and Adolescent Psychiatry, Hacettepe University School of Medicine, Ankara, Turkey
| | - Mehmet Alikasifoglu
- Department of Medical Genetics, Hacettepe University School of Medicine, Ankara, Turkey
| | - Arda Cetinkaya
- Department of Medical Genetics, Hacettepe University School of Medicine, Ankara, Turkey
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