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Full-Text Articles in Medicine and Health Sciences

Microrna-Based Biomarkers In Alzheimer’S Disease (Ad), Yuhai Zhao, Vivian Jaber, Peter N. Alexandrov, Andrea Vergallo, Simone Lista, Harald Hampel, Walter J. Lukiw Oct 2020

Microrna-Based Biomarkers In Alzheimer’S Disease (Ad), Yuhai Zhao, Vivian Jaber, Peter N. Alexandrov, Andrea Vergallo, Simone Lista, Harald Hampel, Walter J. Lukiw

School of Medicine Faculty Publications

Alzheimer’s disease (AD) is a multifactorial, age-related neurological disease characterized by complex pathophysiological dynamics taking place at multiple biological levels, including molecular, genetic, epigenetic, cellular and large-scale brain networks. These alterations account for multiple pathophysiological mechanisms such as brain protein accumulation, neuroinflammatory/neuro-immune processes, synaptic dysfunction, and neurodegeneration that eventually lead to cognitive and behavioral decline. Alterations in microRNA (miRNA) signaling have been implicated in the epigenetics and molecular genetics of all neurobiological processes associated with AD pathophysiology. These changes encompass altered miRNA abundance, speciation and complexity in anatomical regions of the CNS targeted by the disease, including modified miRNA expression …


Acute Systemic Inflammatory Response Alters Transcription Profile Of Genes Related To Immune Response And Ca 2+ Homeostasis In Hippocampus; Relevance To Neurodegenerative Disorders, Grzegorz A. Czapski, Yuhai Zhao, Walter J. Lukiw, Joanna B. Strosznajder Oct 2020

Acute Systemic Inflammatory Response Alters Transcription Profile Of Genes Related To Immune Response And Ca 2+ Homeostasis In Hippocampus; Relevance To Neurodegenerative Disorders, Grzegorz A. Czapski, Yuhai Zhao, Walter J. Lukiw, Joanna B. Strosznajder

School of Medicine Faculty Publications

Acute systemic inflammatory response (SIR) triggers an alteration in the transcription of brain genes related to neuroinflammation, oxidative stress and cells death. These changes are also characteristic for Alzheimer’s disease (AD) neuropathology. Our aim was to evaluate gene expression patterns in the mouse hippocampus (MH) by using microarray technology 12 and 96 h after SIR evoked by lipopolysaccharide (LPS). The results were compared with microarray analysis of human postmortem hippocampal AD tissues. It was found that 12 h after LPS administration the expression of 231 genes in MH was significantly altered (FC > 2.0); however, after 96 h only the S100a8 …


Dha Modulates Manf And Trem2 Abundance, Enhances Neurogenesis, Reduces Infarct Size, And Improves Neurological Function After Experimental Ischemic Stroke, Ludmila Belayev, Sung Ha Hong, Raul S. Freitas, Hemant Menghani, Shawn J. Marcell, Larissa Khoutorova, Pranab K. Mukherjee, Madigan M. Reid, Reinaldo B. Oria, Nicolas G. Bazan Aug 2020

Dha Modulates Manf And Trem2 Abundance, Enhances Neurogenesis, Reduces Infarct Size, And Improves Neurological Function After Experimental Ischemic Stroke, Ludmila Belayev, Sung Ha Hong, Raul S. Freitas, Hemant Menghani, Shawn J. Marcell, Larissa Khoutorova, Pranab K. Mukherjee, Madigan M. Reid, Reinaldo B. Oria, Nicolas G. Bazan

School of Medicine Faculty Publications

Aims: Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a secretory neurotrophic factor protein that promotes repair after neuronal injury. The microglia cell surface receptor (triggering receptor expressed on myeloid cells-2; TREM2) regulates the production of pro- and antiinflammatory mediators after stroke. Here, we study MANF and TREM2 expression after middle cerebral artery occlusion (MCAo) and explore if docosahexaenoic acid (DHA) treatment exerts a potentiating effect. Methods: We used 2 hours of the MCAo model in rats and intravenously administered DHA or vehicle at 3 hours after the onset of MCAo. Neurobehavioral assessment was performed on days 1, 3, 7, and 14; …


Novel Rvd6 Stereoisomer Induces Corneal Nerve Regeneration And Wound Healing Post-Injury By Modulating Trigeminal Transcriptomic Signature, Thang L. Pham, Azucena H. Kakazu, Jiucheng He, Bokkyoo Jun, Nicolas G. Bazan, Haydee E.P. Bazan Mar 2020

Novel Rvd6 Stereoisomer Induces Corneal Nerve Regeneration And Wound Healing Post-Injury By Modulating Trigeminal Transcriptomic Signature, Thang L. Pham, Azucena H. Kakazu, Jiucheng He, Bokkyoo Jun, Nicolas G. Bazan, Haydee E.P. Bazan

School of Medicine Faculty Publications

The high-density corneal innervation plays a pivotal role in sustaining the integrity of the ocular surface. We have previously demonstrated that pigment epithelium-derived factor (PEDF) plus docosahexaenoic acid (DHA) promotes corneal nerve regeneration; here, we report the mechanism involved and the discovery of a stereospecific Resolvin D6-isomer (RvD6si) that drives the process. RvD6si promotes corneal wound healing and functional recovery by restoring corneal innervation after injury. RvD6si applied to the eye surface elicits a specific transcriptome signature in the trigeminal ganglion (TG) that includes Rictor, the rapamycin-insensitive complex-2 of mTOR (mTORC2), and genes involved in axon growth, whereas genes related …