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Odabas GP, Aslan K, Suna PA, Kendirli PK, Erdem Ş, Çakır M, Özcan A, Yılmaz E, Karakukcu M, Donmez-Altuntas H, Yay AH, Deniz K, Altay D, Arslan D, Canatan H, Eken A, Unal E. Alantolactone ameliorates graft versus host disease in mice. Int Immunopharmacol 2024; 128:111560. [PMID: 38246003 DOI: 10.1016/j.intimp.2024.111560] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/17/2023] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
The anti-inflammatory and immunosuppressive drugs which are used in the treatment of Graft-versus-Host Disease (GVHD) have limited effects in controlling the severity of the disease. In this study, we aimed to investigate the prophylactic effect of Alantolactone (ALT) in a murine model of experimental GVHD. The study included 4 BALB/c groups as hosts: Naïve (n = 7), Control GVHD (n = 16), ALT-GVHD (n = 16), and Syngeneic transplantation (n = 10). Busulfan (20 mg/kg/day) for 4 days followed by cyclophosphamide (100 mg/kg/day) were administered for conditioning. Allogeneic transplantation was performed with cells collected from mismatched female C57BL/6, and GVHD development was monitored by histological and flow cytometric assays. Additionally, liver biopsies were taken from GVHD patient volunteers between ages 2-18 (n = 4) and non-GVHD patients between ages 2-50 (n = 5) and cultured ex vivo with ALT, and the supernatants were used for ELISA. ALT significantly ameliorated histopathological scores of the GVHD and improved GVHD clinical scores. CD8+ T cells were shown to be reduced after ALT treatment. More importantly, ALT treatment skewed T cells to a more naïve phenotype (CD62L+ CD44-). ALT did not alter Treg cell number or frequency. ALT treatment appears to suppress myeloid cell lineage (CD11c+). Consistent with reduced myeloid lineage, liver and small intestine levels of GM-CSF were reduced in ALT-treated mice. IL-6 gene expression was significantly reduced in the intestinal tissue. Ex vivo ALT-treated liver biopsy samples from GVHD patients showed a trend of decrease in pro-inflammatory cytokines but there was no statistical significance. Collectively, the data indicated that ALT may have immunomodulatory actions in a preclinical murine GVHD model.
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Affiliation(s)
- Gul Pelin Odabas
- Erciyes University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology, Kayseri, Turkiye
| | - Kubra Aslan
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye
| | - Pinar Alisan Suna
- Erciyes University School of Medicine, Department of Histology and Embryology, Kayseri, Turkiye
| | - Perihan Kader Kendirli
- Abdullah Gül University, School of Life and Natural Sciences, Department of Bioengineering, Kayseri, Turkiye
| | - Şerife Erdem
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye
| | - Mustafa Çakır
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye; Van Yuzuncu Yıl University, School of Medicine, Department of Medical Biology, Van, Turkiye
| | - Alper Özcan
- Erciyes University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology, Kayseri, Turkiye
| | - Ebru Yılmaz
- Erciyes University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology, Kayseri, Turkiye; Erciyes University, Institute of Health Sciences, Department of Blood Banking and Transfusion Medicine, Kayseri, Turkey
| | - Musa Karakukcu
- Erciyes University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology, Kayseri, Turkiye
| | - Hamiyet Donmez-Altuntas
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye
| | - Arzu Hanim Yay
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye; Erciyes University School of Medicine, Department of Histology and Embryology, Kayseri, Turkiye
| | - Kemal Deniz
- Erciyes University School of Medicine, Department of Pathology, Kayseri, Turkiye
| | - Derya Altay
- Erciyes University School of Medicine, Department of Pediatric Gastroenterology, Kayseri, Turkiye
| | - Duran Arslan
- Erciyes University School of Medicine, Department of Pediatric Gastroenterology, Kayseri, Turkiye
| | - Halit Canatan
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye
| | - Ahmet Eken
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkiye; Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkiye.
| | - Ekrem Unal
- Erciyes University School of Medicine, Department of Pediatrics, Division of Pediatric Hematology and Oncology, Kayseri, Turkiye; Erciyes University, Institute of Health Sciences, Department of Blood Banking and Transfusion Medicine, Kayseri, Turkey; Hasan Kalyoncu University School of Health Sciences, Department of Nursing, Gaziantep, Turkiye; Medical Point Hospital Hematology and Oncology Clinic, Gaziantep, Turkiye.
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Özdemir O, Mahmutoğlu AS, Yiğit E, Çakır M, Yiğit Ö. Do the Age of Implantation, the Widths of Internal Acoustic Canal and Bony Cochlear Nerve Canal Affect the Auditory Performance of Primary School Children with Bilateral Cochlear Implants? Turk Arch Otorhinolaryngol 2022; 60:95-101. [PMID: 36105530 PMCID: PMC9435394 DOI: 10.4274/tao.2022.2021-9-5] [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: 09/12/2021] [Accepted: 05/04/2022] [Indexed: 12/01/2022] Open
Abstract
Objective: To reveal the correlation between implantation age, the internal acoustic canal (IAC) width, bony cochlear nerve canal (BCNC) width, and auditory performance in primary school children with bilateral cochlear implantation (CI). Methods: Preoperative IAC and BCNC widths of 57 pre-lingually deaf children aged 7–11 years who had previously undergone bilateral CI in our institution were reviewed and cut-off values were calculated. Twenty-four patients who had additional problems and could not attend school and those who refused to participate in the study were excluded. The remaining 33 were invited to the hospital, and their speech perception tests, and language development scores were analyzed (16 of 33 patients had been operated on before the age of 24 months). Results: The cut-off values calculated from the 114 ears of 57 patients were 3.86 mm for IAC width and 1.56 mm for BCNC width. The auditory performances of the 33 patients after CI were not significantly different in the narrow and normal width groups. However, speech perception test results, and language development scores of patients implanted before the age of 24 months were significantly higher. Conclusion: There are some studies showing that children with bilateral sensorineural hearing loss have narrower IAC and BCNC widths. However, we concluded that the widths of the IAC and the bone cochlear nerve canal did not affect auditory performance. We found that implantation age is the single most important determinant of speech-language development after CI.
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Özcan SS, Gürel G, Çakır M. Gene expression profiles of transient receptor potential (TRP) channels in the peripheral blood mononuclear cells of psoriasis patients. Hum Exp Toxicol 2021; 40:1234-1240. [PMID: 33550865 DOI: 10.1177/0960327121991911] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Psoriasis is a chronic autoimmune disease in which peripheral blood mononuclear cells (PBMCs) are involved in the pathological process. Transient receptor potential (TRP) channels expressed in immune cells have been shown to be associated with inflammatory diseases. We aimed to evaluate mRNA expression levels of TRP channels in PBMCs of patients with psoriasis. 30 patients with plaque psoriasis and 30 healthy age- and gender-matched control subjects were included in this study. mRNA expression levels of TRP channels in psoriasis patients were determined by Real-time polymerase chain reaction. A decreased TRPM4, TRPM7, TRPV3, TRPV4, and TRPC6 genes expression levels were found in the patient group compared to controls, respectively (p = 0.045, p = 0.000, p = 0.000, p = 0.045, p = 0.009), whereas, an increased expression level was found in TRPM2 and TRPV1 genes in the patient group compared to controls (p = 0.001 and p = 0.028). This is the first study showing the TRP channel mRNA expressions in PBMCs of psoriasis patients. Different expression patterns of TRP channels may have a role in pathogenesis of psoriasis.
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Affiliation(s)
- S S Özcan
- Department of Medical Biology, Faculty of Medicine, 162338Yozgat Bozok University, Yozgat, Turkey
| | - G Gürel
- Department of Dermatology, Faculty of Medicine, 162338Yozgat Bozok University, Yozgat, Turkey
| | - M Çakır
- Department of Physiology, Faculty of Medicine, 162338Yozgat Bozok University, Yozgat, Turkey
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Kırgezen T, Bilici S, Çakır M, Ceyran Ö, Chasan M, Yiğit Ö. Factors Affecting Optimal Titration Pressure of Continuous Positive Airway Pressure Device in Patients with Obstructive Sleep Apnea Syndrome. Turk Arch Otorhinolaryngol 2020; 58:80-86. [PMID: 32783033 DOI: 10.5152/tao.2020.4947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/09/2020] [Indexed: 01/04/2023] Open
Abstract
Objective To assess the effects of anatomical, clinical parameters, and pulmonary respiratory function on the therapeutic titration pressure of continuous positive airway pressure (CPAP) device in obstructive sleep apnea syndrome (OSAS). Methods The study comprised 41 OSAS patients whose optimum CPAP titration pressures were measured. Each patient underwent an otorhinolaryngologic and thoracic examination, and data was recorded for height, weight, body mass index, neck-waist circumferences, Mallampati classification, tonsillar hypertrophy, hypopharyngeal collapse, soft palate-tongue base obstruction scores, peak nasal inspiratory flow and acoustic rhinometry measures, and CPAP device therapeutic pressures. Forced vital capacity, forced expiratory volume, FEV1/FVC ratio and peak expiratory flow values were noted. Results Median CPAP optimal pressure cut-off value was determined as 9 mmH2O. Statistical analysis was made in two groups as CPAP titration optimal pressure ≤9 and >9 mmH2O. In the optimal pressure >9 group, neck and waist circumferences, hypopharyngeal collapse score, retropalatal and retrolingual lateral wall collapse scores were significantly higher (p<0.05). In multivariate and univariate model analysis, neck and waist circumferences, hypopharyngeal collapse score, retropalatal and retrolingual lateral wall collapse scores were observed to be significant in predicting high and low pressures in univariate model. Conclusion For the prediction of optimal CPAP titration pressure in OSAS treatment, wide neck and waist circumferences, high hypopharyngeal collapse score and retropalatal and retrolingual lateral wall collapse grades may be determinative.
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Affiliation(s)
- Tolga Kırgezen
- Department of Otorhinolaryngology/Head and Neck Surgery, İstanbul Training and Research Hospital, İstanbul, Turkey
| | - Suat Bilici
- Department of Otorhinolaryngology/Head and Neck Surgery, Acıbadem University Atakent Hospital, İstanbul, Turkey
| | - Mustafa Çakır
- Department of Otorhinolaryngology/Head and Neck Surgery, İstanbul Training and Research Hospital, İstanbul, Turkey
| | - Özlem Ceyran
- Department of Chest Diseases, İstanbul Training and Research Hospital, İstanbul, Turkey
| | - Moustafa Chasan
- Department of Otorhinolaryngology/Head and Neck Surgery, İstanbul Training and Research Hospital, İstanbul, Turkey
| | - Özgür Yiğit
- Department of Otorhinolaryngology/Head and Neck Surgery, İstanbul Training and Research Hospital, İstanbul, Turkey
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Abstract
Objective The purpose of this study was to investigate the effect of temporary or persistent neurosensory disturbance of the inferior alveolar nerve (IAN) on the quality of life using Oral Health Impact Profile (OHIP-14) questionnaire. Methods The patients with the neurosensory deficit of the IAN that was confirmed by subjective and objective neurosensory tests formed the study group. The patients who had dental or oral and maxillofacial surgery procedures in the same unit and did not present neurosensory deficit were matched with the study group according to their gender and age and were presented as the control group. Both groups filled OHIP-14 questionnaire. Results This study included 200 patients (122 female and 78 male), aged between 18 and 75 years. Kolmogrov-Smirnov, Levene, Mann-Whitney U, and Kruskal Wallis tests were used for statistical analysis. In study group, the average OHIP-14 scores were higher in women than in men in physical pain and handicap subgroups. There were significant differences between study and control groups in functional limitation, psychological discomfort, psychological disability, and handicap subgroups. The OHIP-14 scores were higher in study group compared with the control group. Conclusion It was concluded that the patients with the neurosensory deficit of the IAN have a poorer quality of life than those without neurosensory deficits.
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Affiliation(s)
- M Çakır
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Okan University, Istanbul, Turkey
| | - I R Karaca
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - E Peker
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - F Ögütlü
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
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