Yazar "Bas, Orhan" için listeleme
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900 MHz electromagnetic field exposure affects qualitative and quantitative features of hippocampal pyramidal cells in the adult female rat
Bas, Orhan; Odaci, Ersan; Kaplan, Süleyman; Acer, Niyazi; Ucok, Kagan; Colakoglu, Serdar (Elsevier Science Bv, 2009)The effects of electromagnetic fields (EMFs) emitted by mobile phones on humans hold special interest due to their use in close proximity to the brain. The current study investigated the number of pyramidal cells in the ... -
Alpha-Tocopherol Decreases Iron-Induced Hippocampal and Nigral Neuron Loss
Bostanci, M. Oemer; Bas, Orhan; Bagirici, Faruk (Springer/Plenum Publishers, 2010)There are many studies about iron-induced neuronal hyperactivity and oxidative stress. Some reports also showed that iron levels rise in the brain in some neurodegenerative diseases such as Parkinson's (PD) and Alzheimer's ... -
Comparison of three methods for the estimation of total intracranial volume - Stereologic, planimetric, and anthropometric approaches
Acer, Niyazi; Sahin, Bunyamin; Bas, Orhan; Ertekin, Tolga; Usanmaz, Mustafa (Lippincott Williams & Wilkins, 2007)There is a well-known close relationship between the total intracranial volume (TIV) and the brain size. Several studies in different countries have estimated the cranial capacity, which indirectly reflects the brain volume. ... -
The effect of acute organophosphate intoxication on female rat hippocampus cornu ammonis region pyramidal neuron numbers, biochemistry and morphology
Bas, Orhan; Cankaya, Soner; Enginyurt, Ozgur; Aslan, Ali; Uydu, Huseyin Avni; Odaci, Ersan; Gul, Tuba (Elsevier, 2019)Background: The most commonly used insecticides and pesticides worldwide are organophosphate compounds, chemicals that irreversibly inhibit the cholinesterase enzyme. Acute intoxication with cholinesterase inhibitors is ... -
Effect of prenatal exposure to an anti-inflammatory drug on neuron number in cornu ammonis and dentate gyrus of the rat hippocampus: A stereological study
Gokcimen, Alpaslan; Ragbetli, Murat Cetin; Bas, Orhan; Tunc, Ayten Turkkani; Aslan, Huseyin; Yazici, A. Canan; Kaplan, Süleyman (Elsevier Science Bv, 2007)Prenatal exposed to an anti-inflammatory drug is a major problem for the developing central nervous system. It is not well known the effect of prenatal exposed to a non-steroidal anti-inflammatory drug on the hippocampus. ... -
Effects of formaldehyde exposure on granule cell number and volume of dentate gyrus: A histopathological and stereological study
Aslan, Huseyin; Songur, Ahmet; Tunc, Ayten Turkkani; Ozen, Oguz Asian; Bas, Orhan; Yagmurca, Murat; Kaplan, Süleyman (Elsevier, 2006)The hippocampal formation is a complex region of the brain related to memory and learning. The purpose of the present study was to determine whether exposure of neonatal rats to formaldehyde (FA) had either early or delayed ... -
The Effects of Nitric Oxide Synthesis Inhibitors on Iron-Induced Nigral Neurotoxicity
Bostanci, M. Omer; Bas, Orhan; Bagirici, Faruk (Springer Tokyo, 2009)… -
Effects of postnatal formaldehyde exposure on pyramidal cell number, volume of cell layer in hippocampus and hemisphere in the rat: A stereological study
Sarsilmaz, Mustafa; Kaplan, Süleyman; Songur, Ahmet; Colakoglu, Serdar; Aslan, Huseyin; Tunc, Ayten Turkkani; Bas, Orhan (Elsevier Science Bv, 2007)The purpose of the present study was to determine whether exposure of neonatal rats to formaldehyde (FA) had either early or delayed effects on the numbers of pyramidal cells in the cornu ammonis (CA) of the hippocampus. ... -
Effects of prenatal exposure to a 900 MHz electromagnetic field on the dentate gyrus of rats: a stereological and histopathological study
Odaci, Ersan; Bas, Orhan; Kaplan, Süleyman (Elsevier Science Bv, 2008)Electromagnetic fields (EMFs) inhibit the formation and differentiation of neural stem cells during embryonic development. In this study, the effects of prenatal exposure to EMF on the number of granule cells in the dentate ... -
Morphometric Analysis of Hemicerebellar Asymmetry with Central Vertigo Cases: A Stereological Study
Gocmen-Mas, Nuket H.; Karabekir, Selim; Kusbeci, Ozge Yilmaz; Sahin, Bunyamin; Ertekin, Tolga; Bas, Orhan; Senan, Sevda (Soc Chilena Anatomia, 2010)We aimed to evaluate the relevant methods of stereology to estimate hemicerebellar asymmetry according to sex in both adult right handed vertigo cases and comparing with healthy cases. The study included 14 adult control ... -
Purkinje cell number decreases in the adult female rat cerebellum following exposure to 900 MHz electromagnetic field
Sonmez, Osman Fikret; Odaci, Ersan; Bas, Orhan; Kaplan, Süleyman (Elsevier, 2010)The biological effects of electromagnetic field (EMF) exposure from mobile phones have growing concern among scientists since there are some reports showing increased risk for human health, especially in the use of mobile ... -
Rapid estimation of the vertebral body volume: A combination of the Cavalieri principle and computed tomography images
Odac, Ersan; Sahin, Bünyamin; Sonmez, Osman Fikret; Kaplan, Süleyman; Bas, Orhan; Bilgiç, Sait; Ergür, Hayati (Elsevier Ireland Ltd, 2003)Objective: The exact volume of the vertebral body is necessary for the evaluation, treatment and surgical application of related vertebral body. Thereby, the volume changes of the vertebral body are monitored, such as ... -
Relationship between organisational commitment and burnout syndrome: a canonical correlation approach
Enginyurt, Ozgur; Cankaya, Soner; Aksay, Kadir; Tunc, Taner; Koc, Bozkurt; Bas, Orhan; Ozer, Erdal (Csiro Publishing, 2016)Objective. Burnout syndrome can significantly reduce the performance of health workers. Although many factors have been identified as antecedents of burnout, few studies have investigated the role of organisational commitment ... -
Role of nitric oxide synthesis inhibitors in iron-induced nigral neurotoxicity: A mechanistic exploration
Bostanci, M. Omer; Bagirici, Faruk; Bas, Orhan (Taylor & Francis Ltd, 2008)In the central nervous system, nitric oxide (NO) has been suggested to be a cell-to-cell signaling molecule that regulates guanylyl cyclase, aconitase, and iron regulatory protein. NO is also one of the substances that is ... -
Short-term ethanol administration does not change the total pyramidal neuron number of the rat hippocampus: A stereologic study
Kozan, Ramazan; Ayyildiz, Mustafa; Bas, Orhan; Kaplan, Süleyman; Agar, Erdal (Springer, 2007)In the hippocampus, short-term exposure to ethanol (EtOH) has been shown to inhibit some functions, and nitric oxide (NO) is an important modulator of physiologic processes. in this study, investigators explored the effects ... -
Stereological evaluation of the volume and volume fraction of intracranial structures in magnetic resonance images of patients with Alzheimer's disease
Bas, Orhan; Acer, Niyazi; Mas, Nuket; Karabekir, Hamit Selim; Kusbeci, Ozge Yilmaz; Sahin, Bunyamin (Elsevier Gmbh, 2009)In this study, we describe and adapt the relevant methods of magnetic resonance (MR) and stereology to estimate total brain volume (TBV), cerebral and cerebellar volume and their volume fractions within the brain. The study ... -
A stereological study of MRI and the Cavalieri principle combined for diagnosis and monitoring of brain tumor volume
Sonmez, Osman Fikret; Odaci, Ersan; Bas, Orhan; Colakoglu, Serdar; Sahin, Bunyamin; Bilgiç, Sait; Kaplan, Süleyman (Elsevier Sci Ltd, 2010)In this study, we aimed to describe the application of the Cavalieri principle for the assessment of tumor volume using MRI without an over-projection/estimation effect. For this purpose, the volume of a patient's brain ... -
Variations of the Superficial Peroneal Nerve and Its Terminal Branches in the Turkish Newborn Fetuses
Bas, Orhan; Bilgiç, Sait; Salbacak, Ahmet; Sonmez, Osman Fikret; Erkut, Adem (Turkish Neurosurgical Soc, 2012)AIM: The topography of the superficial peroneal nerve (SPN) and its terminal branches were studied, with the aim of providing further anatomical details for leg and foot in the Turkish newborn fetuses. MATERIAL and METHODS: ...
