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Alzheimer's disease

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Full-Text Articles in Medicine and Health Sciences

Effects Of Thymoquinone And Memantine Alone And In Combination On Memory And Hippocampal Morphology In Rats With Streptozotocin-Induced Alzheimer's Disease, Şeyma Özsoy, Zi̇ya Çakir, Eli̇f Akçay, Fi̇kret Gevrek Aug 2023

Effects Of Thymoquinone And Memantine Alone And In Combination On Memory And Hippocampal Morphology In Rats With Streptozotocin-Induced Alzheimer's Disease, Şeyma Özsoy, Zi̇ya Çakir, Eli̇f Akçay, Fi̇kret Gevrek

Turkish Journal of Medical Sciences

Background/aim: Alzheimer's disease (AD) is a progressive neurodegenerative disease. Thymoquinone (TQ) has broad biological functions, including antiinflammatory, antioxidant, neuroprotective properties. Memantine (MEM) is indicated for the symptomatic treatment of moderate to severe AD. We aimed to evaluate the effect of TQ alone or in combination with MEM on memory and hippocampal morphology in an STZ-induced rat AD model. Materials and methods: Thirty male rats were included in this study. The AD model was created by giving ICV STZ. The rats were divided into 5 groups (n = 6 each). Group 1 (control group): The rats received only ICV-STZ 3 mg/kg …


Ultrasonographic/Regional Muscle Measurements For Diagnosing Sarcopenia In Older Adults With And Without Dementia, Zekeri̇ya Ülger, Gözde Şengül Ayçi̇çek, Özgür Kara, Murat Kara Jan 2022

Ultrasonographic/Regional Muscle Measurements For Diagnosing Sarcopenia In Older Adults With And Without Dementia, Zekeri̇ya Ülger, Gözde Şengül Ayçi̇çek, Özgür Kara, Murat Kara

Turkish Journal of Medical Sciences

Background/aim: Sarcopenia and dementia are growing concerns among older adults that muscle and brain atrophy may cooccur. We aimed to compare the age-related loss of muscle mass by using ultrasound (US), and skeletal muscle mass index (SMI) by bioelectrical impedance analysis in older adults with and without dementia. Materials and methods: A total of 221 older adults aged ≥65 years were included in the study. The diagnosis of sarcopenia was established if low muscle mass according to either SMI or sonographic gastrocnemius (GC) muscle thickness was combined with low grip strength. The diagnosis of dementia was based on the National …


Effects Of Tacrolimus On C-Fos In Hippocampus And Memory Performances Instreptozotocin Model Of Alzheimer's Disease Of Rats, Ayşe Köylü, Berri̇n Zühal Altunkaynak, Burcu Deli̇baş Jan 2021

Effects Of Tacrolimus On C-Fos In Hippocampus And Memory Performances Instreptozotocin Model Of Alzheimer's Disease Of Rats, Ayşe Köylü, Berri̇n Zühal Altunkaynak, Burcu Deli̇baş

Turkish Journal of Medical Sciences

Background/aim: Calcineurin, an inhibitor of calcium dependent phosphatase is highly presented in a brain of an Alzheimer?s disease. Aging brain gets more sensitive to hyperactivation of calcineurin, and this event causes tau neurofibrillary plaque accumulation, which is one of the outcomes of this disease. The regions of hippocampus are much effected from the results of this process. Our hypothesis is that a calcineurin inhibitor, tacrolimus, could prevent the accumulation and the decrease of the neuronal cells. Therefore, this immunosuppressive drug could be a candidate for an early treatment of Alzheimer disease. Materials and methods: Fifteen male Wistar albino rats were …


Effects Of The Online Computerized Cognitive Training Program Beynex On The Cognitive Tests Of Individuals With Subjective Cognitive Impairment And Alzheimer's Disease On Rivastigmine Therapy, Ni̇lgün Çinar, Türker Ahmet Hasan Şahi̇ner Jan 2020

Effects Of The Online Computerized Cognitive Training Program Beynex On The Cognitive Tests Of Individuals With Subjective Cognitive Impairment And Alzheimer's Disease On Rivastigmine Therapy, Ni̇lgün Çinar, Türker Ahmet Hasan Şahi̇ner

Turkish Journal of Medical Sciences

Background/aim: Clinical trials conducted on the efficacy of computerized cognitive training (CCT) programs have not led to any important breakthroughs. CCT is a safe and inexpensive approach, but its efficacy in patients on rivastigmine therapy has not been evaluated. This study aims to compare effects of CCT and examines rivastigmine to determine whether CCT has any further contributions to make. Materials and methods: Sixty individuals with subjective memory complaint (SCI) and 60 individuals with early stage Alzheimer's dementia (AD) were subjected to the Montreal Cognitive Assessment (MoCA), Cambridge Cognition (CANTAB tests: MOT, PRM, DMS, SWM, PAL, RTI), and Bayer-ADL. After …


Potential Role Of Some Nutraceuticals In The Regression Of Alzheimer’S Disease In An Experimental Animal Model, Hanaa Hamdy Ahmed, Wafaa Ghoneim Shousha, Rehab Mahmoud Hussien, Abdel Razik Hussein Farrag Jan 2011

Potential Role Of Some Nutraceuticals In The Regression Of Alzheimer’S Disease In An Experimental Animal Model, Hanaa Hamdy Ahmed, Wafaa Ghoneim Shousha, Rehab Mahmoud Hussien, Abdel Razik Hussein Farrag

Turkish Journal of Medical Sciences

The goal of this study was to evaluate the potential role of some nutraceuticals, coenzyme Q_{10}, vitamin B complex, and lecithin against aluminum-induced neurodegeneration characteristic of Alzheimer's disease. Materials and methods: Ninety-six male and female Sprague Dawley rats were divided into 2 main groups, namely female and male. Each group was divided into 6 subgroups. Group 1 served as control group. Group 2 was administered AlCl_3 for 4 months. Groups 3, 4, 5, and 6 were administered with AlCl_3 for 4 months then treated with Coenzyme Q_{10}, vitamin B complex, lecithin, or all in combination for 3 months, respectively. Brain …


Atypical Clinical Manifestation Of Dementia: A Progressive Visuospatial Deficit, Mehmet Güney Şenol, Hakan Tekeli̇, Erdem Toğrol, Mehmet Saraçoğlu Jan 2010

Atypical Clinical Manifestation Of Dementia: A Progressive Visuospatial Deficit, Mehmet Güney Şenol, Hakan Tekeli̇, Erdem Toğrol, Mehmet Saraçoğlu

Turkish Journal of Medical Sciences

Clinically and neuropathologically dementia is a very heterogeneous disease. Alzheimer's disease (Alzheimer disease, AD), the most common cause of dementia, is an acquired cognitive and behavioral impairment of sufficient severity that markedly interferes with social and occupational functioning. This disease may be manifested as progressive memory problems, visuospatial deterioration, aphasia and/or deficits of executive functions. The patient we report here is a 73-year-old female patient with loss of ability of finding directions and understanding the shapes of materials. Her complaints increased progressively during the last two years. Even if she had retired from tailoring, she had deterioration in the visuospatial …


Antioxidant Status, Lipid Peroxidation Products And Cystatin C As Potential Clinical Markers Of Alzheimer's Disease In Systemic Circulation, Ayşegül Akbay Yarpuzlu, Çi̇ğdem Aydemi̇r, Selda Demi̇rtaş, Engi̇n Turan Tuncer, Orhan Canpolat, Yasemi̇n Genç Jan 2001

Antioxidant Status, Lipid Peroxidation Products And Cystatin C As Potential Clinical Markers Of Alzheimer's Disease In Systemic Circulation, Ayşegül Akbay Yarpuzlu, Çi̇ğdem Aydemi̇r, Selda Demi̇rtaş, Engi̇n Turan Tuncer, Orhan Canpolat, Yasemi̇n Genç

Turkish Journal of Medical Sciences

Growing data suggest oxidative stress contributes to the pathogenesis of Alzheimer's disease (AD). The objective of this study was to assess the value of antioxidant potential (AOP), antioxidant status (AOS) and thiobarbituric acid reactive substances (TBARS) and the cysteine protease inhibitor Cystatin C that plays a role in the processing of amyloid _ as clinical markers of AD in peripheral circulation and to find out the agreement limits of AOP and AOS as clinical laboratory tests. To do this, 21 severely demented patients fitting the DSM-IV diagnostic criteria for Alzheimer's type dementia as well as through minimental state examination were …