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Kurtulmus A, Sahbaz C, Elbay A, Guler EM, Sonmez Avaroglu G, Kocyigit A, Ozdemir MH, Kirpinar I. Clinical and biological correlates of optical coherence tomography findings in schizophrenia. Eur Arch Psychiatry Clin Neurosci 2023; 273:1837-1850. [PMID: 37022475 DOI: 10.1007/s00406-023-01587-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 03/06/2023] [Indexed: 04/07/2023]
Abstract
There is a growing body of evidence indicating retinal layer thinning in schizophrenia. However, neuropathological processes underlying these retinal structural changes and its clinical correlates are yet to be known. Here, we aim to investigate the clinical and biological correlates of OCT findings in schizophrenia. 50 schizophrenia patients and 40 healthy controls were recruited. Retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), and macular and choroidal thicknesses were recorded. A comprehensive battery of neuropsychological tests was applied. Fasting glucose, triglycerides and HDL-cholesterol levels, TNF-α, IL-1β and IL-6 levels were measured. Right IPL was significantly thinner in patients than the controls after controlling for various confounders (F = 5.42, p = .02). Higher IL-6, IL-1β, and TNF-α levels were associated with decreased left macular thickness (r = - 0.26, p = .027, r = - 0.30, p = 0.012, and r = - 0.24, p = .046, respectively) and higher IL-6 was associated with thinning of right IPL (r = - 0.27, p = 0.023) and left choroid (r = - 0.23, p = .044) in the overall sample. Thinning of right IPL and left macula were also associated with worse executive functioning (r = 0.37, p = 0.004 and r = 0.33, p = 0.009) and attention (r = 0.31, p = 0.018 and r = 0.30, p = 0.025). In patients with schizophrenia, IPL thinning was associated with increased BMI (r = - 0.44, p = 0.009) and decreased HDL levels (r = 0.43, p = 0.021). Decreased TNF-α level was related to IPL thinning, especially in the left eye (r = 0.40, p = 0.022). These findings support the hypothesis that OCT might provide the opportunity to establish an accessible and non-invasive probe of brain pathology in schizophrenia and related disorders. However, future studies investigating retinal structural changes as a biological marker for schizophrenia should also consider the metabolic state of the subjects.
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Affiliation(s)
- Ayse Kurtulmus
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey.
- Department od Psychiatry, Istanbul Medeniyet University Goztepe Research and Training Hospital, Istanbul, Turkey.
| | - Cigdem Sahbaz
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ahmet Elbay
- Department of Ophthalmology, Bezmialem Vakif University, Istanbul, Turkey
| | - Eray Metin Guler
- Department of Medical Biochemistry, Hamidiye School of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Gamze Sonmez Avaroglu
- Fatih Community Mental Health Centre, Haseki Research and Training Hospital, Istanbul, Turkey
| | - Abdurrahim Kocyigit
- Department of Medical Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | | | - Ismet Kirpinar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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Affiliation(s)
- Tezer Kilicarslan
- Department of Psychiatry, Bezmialem Vakif University Adnan, Menderes Boulevard (Vatan Street) P.K. 34093 Fatih, Istanbul, Turkey,
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Sahbaz C, Zibandey N, Kurtulmus A, Duran Y, Gokalp M, Kırpınar I, Sahin F, Guloksuz S, Akkoc T. Reduced regulatory T cells with increased proinflammatory response in patients with schizophrenia. Psychopharmacology (Berl) 2020; 237:1861-1871. [PMID: 32221694 DOI: 10.1007/s00213-020-05504-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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] [Received: 10/22/2019] [Accepted: 03/05/2020] [Indexed: 02/07/2023]
Abstract
AIM To investigate whether circulating T cells including regulatory T cells (Treg) and derived cytokines contribute to the immune imbalance observed in schizophrenia. METHODS Forty patients with schizophrenia and 40 age, sex, body mass index, education, and smoking status-matched healthy controls (HC) are included in the study. We stained cells with anti-CD14, anti-CD3, anti-CD4, anti-CD8, anti-CD19, anti-CD20, and anti-CD16/56. Peripheral blood mononuclear cells (PBMCs) were isolated and stained with the human FoxP3 kit containing anti-CD4/anti-CD25 and intracellular anti-Foxp3. PBMCs were cultured for 72 h and stimulated with anti-CD3/anti-CD28. Cytokines (IL-2, IL-4, IL-6, IL-10, IFN-γ, TNF-α, and IL-17A) were measured from the culture supernatant and plasma using the Th1/Th2/Th17 cytokine bead array kit. RESULTS In comparison with HC, Treg percentages in schizophrenia were higher (1.17 ± 0.63 vs 0.81 ± 0.53, P = 0.005) in unstimulated but lower in the stimulated condition (0.73 ± 0.69 vs 0.97 ± 0.55, P = 0.011). Activated T cell percentages were higher in schizophrenia than HC in unstimulated (2.22 ± 0.78 vs 1.64 ± 0.89, P = 0.001) and stimulated (2.25 ± 1.01 vs 1.72 ± 1.00, P = 0.010) conditions. The culture supernatant levels of IL-6 (7505.17 ± 5170.07 vs 1787.81 ± 1363.32, P < 0.001), IL-17A (191.73 ± 212.49 vs 46.43 ± 23.99, P < 0.001), TNF-α (1557 ± 1059.69 vs 426.57 ± 174.62, P = 0.023), and IFN-γ (3204.13 ± 1397.06 vs 447.79 ± 270.13, P < 0.001); and plasma levels of IL-6 (3.83 ± 3.41vs 1.89 ± 1.14, P = 0.003) and IL-17A (1.20 ± 0.84 vs 0.83 ± 0.53, P = 0.033) were higher in patients with schizophrenia than HC. CONCLUSION Our explorative study shows reduced level of Foxp3 expressing Treg in a stimulated condition with induced levels of proinflammatory cytokines in patients with schizophrenia.
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Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey.
| | | | - Ayse Kurtulmus
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Yazgul Duran
- Department of Immunology, Marmara University, Istanbul, Turkey
| | - Muazzez Gokalp
- Department of Immunology, Marmara University, Istanbul, Turkey
| | - Ismet Kırpınar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Fikrettin Sahin
- Department of Bioengineering and Genetics, Yeditepe University, Istanbul, Turkey
| | - Sinan Guloksuz
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, the Netherlands.,Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Tunc Akkoc
- Department of Immunology, Marmara University, Istanbul, Turkey
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Sahbaz C, Elbay A, Ozcelik M, Ozdemir H. Insomnia Might Influence the Thickness of Choroid, Retinal Nerve Fiber and Inner Plexiform Layer. Brain Sci 2020; 10:brainsci10030178. [PMID: 32204463 PMCID: PMC7139633 DOI: 10.3390/brainsci10030178] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/12/2020] [Accepted: 03/17/2020] [Indexed: 12/13/2022] Open
Abstract
Sleep may play a fundamental role in retinal regulation and the degree of retinal variables. However, no clinical study has investigated optical coherence tomography (OCT) parameters in patients with primary insomnia. All participants were evaluated with the insomnia severity index (ISI) and the Pittsburgh sleep quality index (PSQI). The retinal nerve fiber layer (RNFL), ganglion cell layer (GC), inner plexiform layer (IPL), macula and choroidal (CH) thickness were compared between 52 drug-naïve patients with primary insomnia and 45 age-gender-BMI-smoke status matched healthy controls (HC). The patients with primary insomnia differed from the HC regarding RNFL-Global (p = 0.024) and RNFL-Nasal inferior (p = 0.010); IPL-Temporal (p < 0.001), IPL-Nasal (p < 0.001); CH-Global (p < 0.001), CH-Temporal (p = 0.004), CH-Nasal (p < 0.001), and CH-Fovea (p = 0.019). ISI correlated with RNFL-Global and RNFL-Nasal inferior. The regression analysis revealed that ISI was the significant predictor for the thickness of RNFL- Nasal inferior (p = 0.020), RNFL-Global (p = 0.031), and CH-Nasal (p = 0.035) in patients with primary insomnia. Sleep disorders are seen commonly in patients with psychiatric, including ocular diseases. Adjusting the effect of insomnia can help to clarify the consistency in findings of OCT.
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Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakıf University, Istanbul 34093, Turkey
- Correspondence:
| | - Ahmet Elbay
- Department of Ophthalmology, Bezmialem Vakıf University, Istanbul 34093, Turkey; (A.E.); (H.O.)
| | - Mine Ozcelik
- School of Medicine, Bezmialem Vakıf University, Istanbul 34093, Turkey;
| | - Hakan Ozdemir
- Department of Ophthalmology, Bezmialem Vakıf University, Istanbul 34093, Turkey; (A.E.); (H.O.)
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Takmaz T, Unal B, Ozcan P, Arici Halici BN, Gorchiyeva I, Gokmen Karasu AF, Sahbaz C. Are chronotype and subjective sleep quality associated with preeclampsia and preterm birth? BIOL RHYTHM RES 2020. [DOI: 10.1080/09291016.2020.1730617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Taha Takmaz
- Department of Obstetrics and Gynecology, Bezmialem University Faculty of Medicine, İstanbul, Turkey
| | - Busra Unal
- Faculty of Medicine, Bezmialem University, İstanbul, Turkey
| | - Pinar Ozcan
- Department of Obstetrics and Gynecology, Bezmialem University Faculty of Medicine, İstanbul, Turkey
| | - Belfin Nur Arici Halici
- Department of Obstetrics and Gynecology, Bezmialem University Faculty of Medicine, İstanbul, Turkey
| | - Irana Gorchiyeva
- Department of Obstetrics and Gynecology, Bezmialem University Faculty of Medicine, İstanbul, Turkey
| | - Ayse Filiz Gokmen Karasu
- Department of Obstetrics and Gynecology, Bezmialem University Faculty of Medicine, İstanbul, Turkey
| | - Cigdem Sahbaz
- Department of Psychiatry, Bezmialem University Faculty of Medicine, İstanbul, Turkey
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Ozcelik M, Sahbaz C. Clinical evaluation of biological rhythm domains in patients with major depression. ACTA ACUST UNITED AC 2020; 42:258-263. [PMID: 32022159 PMCID: PMC7236150 DOI: 10.1590/1516-4446-2019-0570] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 09/27/2019] [Indexed: 12/23/2022]
Abstract
Objective: Sleep, physical activity, and social domains of biological rhythm disruptions may have specific effects on the symptom cluster and severity of depression. However, there is a lack of structured clinical evaluation to specify the domains of biological rhythms in patients with depression. Methods: Ninety drug-naïve subjects with depression and 91 matched healthy controls were recruited for the study. The severity of depression was examined with the Hamilton Rating Scale for Depression (HRSD), while biological rhythm was evaluated using the Biological Rhythms Interview of Assessment in Neuropsychiatry (BRIAN). Results: Patients with depression showed significantly greater biological rhythm disturbances than healthy controls in all domains of BRIAN (sleep, activity, social, and eating). BRIAN-Total correlated positively with HRSD-Total and HRSD-Total without sleep cluster. The sleep and activity domains correlated significantly with HRSD-Total score. Additionally, the sleep, activity, and social domains correlated significantly with HRSD-Total without the sleep cluster score. Regression analysis revealed the activity (β = 0.476, t = 5.07, p<0.001) and sleep (β = 0.209, t = 2.056, p = 0.043) domains may predict HRSD-Total score. Conclusion: Consideration of biological rhythm domains in clinical examination and focusing on the sleep and activity domains may hold promise for the management of depression.
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Affiliation(s)
- Mine Ozcelik
- School of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
| | - Cigdem Sahbaz
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
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Sahbaz C, Ozer O, Kurtulmus A, Kırpınar I, Guloksuz S. Decreased levels of fasting serum leptin in patients with schizophrenia: a case-control study. PBS 2020. [DOI: 10.5455/pbs.20191209055820] [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: 11/03/2022]
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Elibol B, Sahbaz C, Eyuboglu S, Cevreli B, Kilic U, Kilic E. Effects of melatonin and memantine administration on the learning and memory performances of hypoxic juvenile rat pups. PBS 2020. [DOI: 10.5455/pbs.20200604064021] [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: 11/03/2022]
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Sahbaz C, Kurtulmus A. Association between emotional functioning and biological rhythm disruptions in patients with schizophrenia. PSYCHIAT CLIN PSYCH 2019. [DOI: 10.1080/24750573.2019.1682853] [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: 10/25/2022] Open
Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Ayse Kurtulmus
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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Elibol B, Terzioglu-Usak S, Beker M, Sahbaz C. Thymoquinone (TQ) demonstrates its neuroprotective effect via an anti-inflammatory action on the Aβ(1–42)-infused rat model of Alzheimer's disease. PSYCHIAT CLIN PSYCH 2019. [DOI: 10.1080/24750573.2019.1673945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 12/09/2022] Open
Affiliation(s)
- Birsen Elibol
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Sule Terzioglu-Usak
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Merve Beker
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Cigdem Sahbaz
- Department of Psychiatry, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Sahbaz C, Özer OF, Kurtulmus A, Kırpınar I, Sahin F, Guloksuz S. Evidence for an association of serum melatonin concentrations with recognition and circadian preferences in patients with schizophrenia. Metab Brain Dis 2019; 34:865-874. [PMID: 30758707 DOI: 10.1007/s11011-019-00395-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 02/04/2019] [Indexed: 12/24/2022]
Abstract
Melatonin, a neuro-differentiation factor, may play a role in the neurodevelopmental origins of schizophrenia. Cognitive impairment and decreased melatonin are reported in schizophrenia; however, the relationship between them remains unclear. We hypothesised that patients with schizophrenia would have lower concentrations of circulating melatonin than healthy controls and that melatonin levels would be associated with cognitive impairment. This study included 47 patients with schizophrenia and 40 healthy controls (HC). Serum melatonin concentrations were measured using the enzyme-linked immunosorbent assay. Positive and Negative Syndrome Scales (PANSS), The Morningness-Eveningness Questionnaire (MEQ), Pittsburgh Sleep Quality Index (PSQI), the Stroop and Oktem verbal memory processes (VMPT) tests were applied. Patients with schizophrenia had lower levels of melatonin compared to the HC group (p = 0.016), also after controlling for age, sex, and body mass index (BMI) (p = 0.024). In patients with schizophrenia, melatonin concentrations were associated with higher BMI (rho = 0.34, p = 0.01) and lower MEQ score (rho = -0.29, p = 0.035). The patient sample was split into low and high melatonin categories by using the median melatonin concentration in HC as the cut-off. Patients in the low melatonin group had poorer performance in VMPT-Recognition (p = 0.026) and Stroop-Colour Error (p = 0.032). Notwithstanding its limitations, the findings of this exploratory study suggest that decreased serum melatonin concentrations observed in schizophrenia might also be associated with cognitive impairment and circadian preferences. Future studies are required to investigate the role of melatonergic pathways in patients with schizophrenia.
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Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey.
| | - Omer Faruk Özer
- Department of Biochemistry, Bezmialem Vakif University, Istanbul, Turkey
| | - Ayse Kurtulmus
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Ismet Kırpınar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Fikrettin Sahin
- Department of Bioengeneering and Genetics, Yeditepe University, Istanbul, Turkey
| | - Sinan Guloksuz
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, the Netherlands
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
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Sahbaz C, Devetzioglou T, Ozcelik AM, Kırpınar I. Circadian preferences are associated with vegetative symptoms and comorbid medical diseases in patients with major depression. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1490867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Tougmpa Devetzioglou
- Department of Psychiatry, St Pancras Hospital, Camden and Islington NHS Trust, London, UK
| | | | - Ismet Kırpınar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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Scholaske L, Lindner-Matthes D, Kurt M, Duman E, Sahbaz C, Spallek J, Entringer S. 1.11-P20Intergenerational transmission of health disparities among Turkish-origin residents in Germany: role of maternal stress and stress biology during pregnancy. A study protocol. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.044] [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: 11/14/2022] Open
Affiliation(s)
- L Scholaske
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Psychological Medicine, Germany
| | - D Lindner-Matthes
- Department of Public Health, Brandenburg University of Technology Cottbus-Senftenberg, Germany
| | - M Kurt
- School of Public Health, Bielefeld University, Germany
| | - E Duman
- Department of Psychology, Bogazici University, Turkey
| | - C Sahbaz
- Department of Psychiatry, Bezmialem University, Turkey
| | - J Spallek
- Department of Public Health, Brandenburg University of Technology Cottbus-Senftenberg, Germany
| | - S Entringer
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Psychological Medicine, Germany
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Callea M, Yavuz I, Clarich G, Gunay A, Vinciguerra A, Unal M, Sahbaz C, Sinan Dogan M, Cammarata-Scalisi F. A case of Beckwith-Wiedemann syndrome with peculiar dental findings. Eur J Paediatr Dent 2016; 17:315-317. [PMID: 28045321] [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: 06/06/2023]
Abstract
BACKGROUND Beckwith-Wiedemann syndrome (BWS, OMIM 130650) is a rare genetic disorder characterised by overgrowth, tumor predisposition and congenital malformations. Few systemic manifestations and oral features have been reported so far. CASE REPORT We report on a case of BWS, describing all features expanding the knowledge on oro-dento-facial phenotypes, along with a review of the literature.
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Affiliation(s)
- M Callea
- Unit of Dentistry, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - I Yavuz
- Department of Paediatric Dentistry, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - G Clarich
- Institute for Maternal and Child Health IRCCS "Burlo Garofolo", Trieste, Italy
| | - A Gunay
- Department of Paediatric Dentistry, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - A Vinciguerra
- Institute for Maternal and Child Health IRCCS "Burlo Garofolo", Trieste, Italy
| | - M Unal
- Afyon Kocatepe University, Faculty of Dentistry, Department of Paediatric Dentistry, Afyon, Turkey
| | - C Sahbaz
- Afyon Kocatepe University, Faculty of Dentistry, Department of Restorative Dentistry, Afyon, Turkey
| | - M Sinan Dogan
- Department of Paediatric Dentistry, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - F Cammarata-Scalisi
- Unit of Medical Genetics, Department of Pediatrics, Faculty of Medicine, University of The Andes, Mérida, Venezuela
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Ozkan Y, Kabay S, Sahbaz C. Axillary nerve palsy occurring after herpes zoster infection. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.344] [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: 11/29/2022]
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Ince B, Akdag Z, Bahsi E, Erdogan S, Celik S, Akkus Z, Dalli M, Sahbaz C, Akdogan M, Kara R, Yavuz Y, Gullu V, Gunay A, Guven K. Can exposure to manganese and extremely low frequency magnetic fields affect some important elements in the rat teeth? Eur Rev Med Pharmacol Sci 2012; 16:763-769. [PMID: 22913208] [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: 06/01/2023]
Abstract
BACKGROUND Length and level of exposure to electromagnetic fields (EMFs) is increasing in association with the widespread use of electrical and electronic devices and technological progress. The undesirable effects of extremely low frequency magnetic fields (ELF-MFs) on health have attracted considerable interest. MATERIALS AND METHODS Sixty-four four-month-old male Wistar rats divided into eight groups of eight rats each were used. Seven groups were exposed to varying dosages of manganese (Mn) and a 50 Hz magnetic field (MF) of approximately 1 mT, while the last group was set aside as the cage control group and not subjected to any procedure. This study was intended to investigate the interactions between the application of MF and Mn and the elements Ca, Zn, Mg, and P thought to be involved in caries, in rat teeth. RESULTS Levels of Ca, Mg, Zn, and P in the experimental group rats were different to those in the control group. CONCLUSIONS The results demonstrate that ELF-MF and Mn can have significant effects on levels of elements in rat teeth. Further experimental and epidemiological studies of ELF-MF and Mn are needed in order to evaluate their dental effects.
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Affiliation(s)
- B Ince
- Department of Restorative Dentistry, Faculty of Dentistry, University of Dicle, Diyarbakir, Turkey.
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