Artikel ; Online: Posterior cingulate gyri metabolic alterations in HIV-positive patients with and without memory deficits
Radiologia Brasileira, Vol 53, Iss 6, Pp 359-
2020 Band 365
Abstract: Abstract Objective: We aimed to evaluate whether human immunodeficiency virus (HIV)-positive patients with and without clinically significant memory deficits and healthy control participants differ on in vivo hydrogen-1 magnetic resonance spectroscopy (H- ...
Abstract | Abstract Objective: We aimed to evaluate whether human immunodeficiency virus (HIV)-positive patients with and without clinically significant memory deficits and healthy control participants differ on in vivo hydrogen-1 magnetic resonance spectroscopy (H-MRS) in the posterior cingulate gyri. Materials and Methods: In total, 21 HIV-positive patients with memory deficit (HIV+wMD) were compared with 15 HIV-positive patients without memory deficit (HIV+wOMD) and 22 sex-, age-, and education-matched control participants. Memory impairments were classified based on the participants’ performance on the Rey Auditory Verbal Learning Test. Short echo time (30 ms), single-voxel H-MRS was performed using a 1.5-T magnetic resonance scanner. Results: The HIV+wMD and HIV+wOMD groups had higher choline/creatine ratio in the posterior cingulate gyri than the control group. There were no significant metabolite ratio differences between the HIV+wMD and HIV+wOMD groups. Conclusion: HIV-positive patients with and without memory deficits had significantly higher choline/creatine ratios than controls in the posterior cingulate gyri, which may reflect cerebral inflammation, altered cell membrane metabolism, microgliosis, and/or astrocytosis. |
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Schlagwörter | HIV ; Memory deficit ; Posterior cingulate gyrus ; Magnetic resonance spectroscopy ; Medical physics. Medical radiology. Nuclear medicine ; R895-920 |
Thema/Rubrik (Code) | 150 |
Sprache | Englisch |
Erscheinungsdatum | 2020-11-01T00:00:00Z |
Verlag | Colégio Brasileiro de Radiologia e Diagnóstico por Imagem |
Dokumenttyp | Artikel ; Online |
Datenquelle | BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl) |
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