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Full-Text Articles in Medicine and Health Sciences
Vitamin D Status And Its Association With Gradual Decline In Cognitive Function, Yusuf Yeşi̇l, Mehmet Emi̇n Kuyumcu, Özgür Kara, Burçi̇n Halaçli, Sezgi̇n Etgül, Muhammet Cemal Kizilarslanoğlu, Burcu Balam Yavuz, Münevver Özcan, Meltem Gülhan Hali̇l, Eylem Şahi̇n Cankurtaran, Mustafa Cankurtaran, Servet Arioğul
Vitamin D Status And Its Association With Gradual Decline In Cognitive Function, Yusuf Yeşi̇l, Mehmet Emi̇n Kuyumcu, Özgür Kara, Burçi̇n Halaçli, Sezgi̇n Etgül, Muhammet Cemal Kizilarslanoğlu, Burcu Balam Yavuz, Münevver Özcan, Meltem Gülhan Hali̇l, Eylem Şahi̇n Cankurtaran, Mustafa Cankurtaran, Servet Arioğul
Turkish Journal of Medical Sciences
Background/aim: To compare plasma vitamin D concentrations among patients with normal cognitive function (control group), mild cognitive impairment (MCI), and Alzheimer disease (AD). Materials and methods: In total, 158 patients with AD, 228 patients with MCI, and 603 control subjects were included. Plasma levels of 25-hydroxyvitamin D were measured after comprehensive geriatric assessment and compared among groups. SPSS 15.0 was used for statistical analysis. Results: Mean levels of 25-hydroxyvitamin D were significantly different among the 3 groups of AD patients, MCI patients, and controls (P < 0.001). Post hoc analysis revealed that the levels were significantly lower in the MCI group than the control group (P = 0.002) and significantly lower in the AD group than the control group (P = 0.003). Multivariate analysis showed that age (OR: 1.070, 95% CI: 1.025-1.116, P = 0.002), instrumental activities of daily living score (OR: 0.920, 95% CI: 0.850-0.995, P = 0.037), 25-hydroxyvitamin D level (OR: 0.959, 95% CI: 0.932-0.987, P = 0.004), and diabetes mellitus (OR: 2.476, 95% CI: 1.153-5.319, P = 0.020) were factors independently associated with AD. Conclusion: This study demonstrated that there is a correlation between plasma 25-hydroxyvitamin D levels and cognitive functions.
Plasma 8-Isopgf2? And Serum Melatonin Levels In Patients With Minimal Cognitive Impairment And Alzheimer Disease, Fevzi̇ye Burcu Şi̇ri̇n, Duygu Kumbul Doğuç, Hüseyi̇n Vural, İbrahi̇m Eren, İkbal İnanli, Recep Sütcü, Namik Deli̇baş
Plasma 8-Isopgf2? And Serum Melatonin Levels In Patients With Minimal Cognitive Impairment And Alzheimer Disease, Fevzi̇ye Burcu Şi̇ri̇n, Duygu Kumbul Doğuç, Hüseyi̇n Vural, İbrahi̇m Eren, İkbal İnanli, Recep Sütcü, Namik Deli̇baş
Turkish Journal of Medical Sciences
Background/aim: F2α-isoprostane is accepted as an oxidative stress indicator and melatonin shows neuroprotective effects by antioxidative and antiamyloidogenic influences. By measuring these in patients diagnosed with minimal cognitive impairment (MCI) and Alzheimer-type dementia, we intended to demonstrate whether the measurement of these markers contributes to early diagnosis of Alzheimer disease (AD) in the MCI stage or not. Materials and methods: Three groups (n = 63) were created: the AD group, MCI group, and control group. Serum melatonin levels were measured by radioimmunoassay method, and plasma total 8-isoPGF2α levels were measured by enzyme immunoassay method. Results: Significant differences were observed in …
Impaired Cognitive Performance And Hippocampal Atrophy In Parkinson Disease, Demet Yildiz, Sevda Erer, Mehmet Zari̇foğlu, Bahatti̇n Hakyemez, Mustafa Bakar, Necdet Karli, Zeynep Ni̇gar Varlibaş, Fati̇h Tufan
Impaired Cognitive Performance And Hippocampal Atrophy In Parkinson Disease, Demet Yildiz, Sevda Erer, Mehmet Zari̇foğlu, Bahatti̇n Hakyemez, Mustafa Bakar, Necdet Karli, Zeynep Ni̇gar Varlibaş, Fati̇h Tufan
Turkish Journal of Medical Sciences
Background/aim: Dementia is common in Parkinson disease (PD). Since magnetic resonance imaging has been used, hippocampal atrophy has been shown in PD patients with or without dementia. In this study we sought the correlation of cognitive decline with bilateral hippocampal volume in PD patients. Materials and methods: Thirty-three patients with diagnosis of idiopathic PD and 16 healthy subjects were included in this study. PD patients were divided into two groups as normal cognitive function and mild cognitive impairment (MCI). The Mini-Mental State Examination and detailed cognitive assessment tests were performed for all patients for cognitive analyses. Depression was excluded by …