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Full-Text Articles in Medicine and Health Sciences
Interaction Of High-Fat Diet And Brain Trauma Alters Adipose Tissue Macrophages And Brain Microglia Associated With Exacerbated Cognitive Dysfunction, Rebecca J Henry, James P Barrett, Maria Vaida, Niaz Z Khan, Oleg Makarevich, Rodney M Ritzel, Alan I Faden, Bogdan A Stoica
Interaction Of High-Fat Diet And Brain Trauma Alters Adipose Tissue Macrophages And Brain Microglia Associated With Exacerbated Cognitive Dysfunction, Rebecca J Henry, James P Barrett, Maria Vaida, Niaz Z Khan, Oleg Makarevich, Rodney M Ritzel, Alan I Faden, Bogdan A Stoica
Journal Articles
Obesity increases the morbidity and mortality of traumatic brain injury (TBI). Detailed analyses of transcriptomic changes in the brain and adipose tissue were performed to elucidate the interactive effects between high-fat diet-induced obesity (DIO) and TBI. Adult male mice were fed a high-fat diet (HFD) for 12 weeks prior to experimental TBI and continuing after injury. High-throughput transcriptomic analysis using Nanostring panels of the total visceral adipose tissue (VAT) and cellular components in the brain, followed by unsupervised clustering, principal component analysis, and IPA pathway analysis were used to determine shifts in gene expression patterns and molecular pathway activity. Cellular …
Transcriptional Responses Of Different Brain Cell Types To Oxygen Decline, Camille Ravel-Godreuil, Ethan R Roy, Srinivas N Puttapaka, Sanming Li, Yanyu Wang, Xiaoyi Yuan, Holger K Eltzschig, Wei Cao
Transcriptional Responses Of Different Brain Cell Types To Oxygen Decline, Camille Ravel-Godreuil, Ethan R Roy, Srinivas N Puttapaka, Sanming Li, Yanyu Wang, Xiaoyi Yuan, Holger K Eltzschig, Wei Cao
Journal Articles
Brain hypoxia is associated with a wide range of physiological and clinical conditions. Although oxygen is an essential constituent of maintaining brain functions, our understanding of how specific brain cell types globally respond and adapt to decreasing oxygen conditions is incomplete. In this study, we exposed mouse primary neurons, astrocytes, and microglia to normoxia and two hypoxic conditions and obtained genome-wide transcriptional profiles of the treated cells. Analysis of differentially expressed genes under conditions of reduced oxygen revealed a canonical hypoxic response shared among different brain cell types. In addition, we observed a higher sensitivity of neurons to oxygen decline, …
Transcriptional Responses Of Different Brain Cell Types To Oxygen Decline, Camille Ravel-Godreuil, Ethan R Roy, Srinivas N Puttapaka, Sanming Li, Yanyu Wang, Xiaoyi Yuan, Holger K Eltzschig, Wei Cao
Transcriptional Responses Of Different Brain Cell Types To Oxygen Decline, Camille Ravel-Godreuil, Ethan R Roy, Srinivas N Puttapaka, Sanming Li, Yanyu Wang, Xiaoyi Yuan, Holger K Eltzschig, Wei Cao
Journal Articles
Brain hypoxia is associated with a wide range of physiological and clinical conditions. Although oxygen is an essential constituent of maintaining brain functions, our understanding of how specific brain cell types globally respond and adapt to decreasing oxygen conditions is incomplete. In this study, we exposed mouse primary neurons, astrocytes, and microglia to normoxia and two hypoxic conditions and obtained genome-wide transcriptional profiles of the treated cells. Analysis of differentially expressed genes under conditions of reduced oxygen revealed a canonical hypoxic response shared among different brain cell types. In addition, we observed a higher sensitivity of neurons to oxygen decline, …
Brain Endothelial Cd200 Signaling Protects Brain Against Ischemic Damage, Afzal Misrani, Conelius Ngwa, Abdullah Al Mamun, Romana Sharmeen, Kanaka Valli Manyam, Rodney M Ritzel, Louise Mccullough, Fudong Liu
Brain Endothelial Cd200 Signaling Protects Brain Against Ischemic Damage, Afzal Misrani, Conelius Ngwa, Abdullah Al Mamun, Romana Sharmeen, Kanaka Valli Manyam, Rodney M Ritzel, Louise Mccullough, Fudong Liu
Journal Articles
Ischemic stroke induced inflammatory responses contribute significantly to neuronal damage and stroke outcomes. CD200 ligand and its receptor, CD200R, constitute an endogenous inhibitory signaling that is being increasingly recognized in studies of neuroinflammation in various central nervous system disorders. CD200 is a type 1 membrane glycoprotein that is broadly expressed by endothelia and neurons in the brain. In the present study, we have examined the role of endothelial CD200 signaling in acute ischemic stroke. Endothelial CD200 conditional knock out (CKO) mice were generated by breeding CD200 gene floxed mice with Cdh5Cre mice. The mice were subjected to a 60-min …
Microglia-Derived Exosomes Modulate Myelin Regeneration Via Mir-615-5p/Myrf Axis, Xiao-Yu Ji, Yu-Xin Guo, Li-Bin Wang, Wen-Cheng Wu, Jia-Qi Wang, Jin He, Rui Gao, Javad Rasouli, Meng-Yuan Gao, Zhen-Hai Wang, Dan Xiao, Wei-Feng Zhang, Bogoljub Ciric, Yuan Zhang, Xing Li
Microglia-Derived Exosomes Modulate Myelin Regeneration Via Mir-615-5p/Myrf Axis, Xiao-Yu Ji, Yu-Xin Guo, Li-Bin Wang, Wen-Cheng Wu, Jia-Qi Wang, Jin He, Rui Gao, Javad Rasouli, Meng-Yuan Gao, Zhen-Hai Wang, Dan Xiao, Wei-Feng Zhang, Bogoljub Ciric, Yuan Zhang, Xing Li
Department of Neurology Faculty Papers
Demyelination and failure of remyelination in the central nervous system (CNS) characterize a number of neurological disorders. Spontaneous remyelination in demyelinating diseases is limited, as oligodendrocyte precursor cells (OPCs), which are often present in demyelinated lesions in abundance, mostly fail to differentiate into oligodendrocytes, the myelinating cells in the CNS. In addition to OPCs, the lesions are assembled numbers of activated resident microglia/infiltrated macrophages; however, the mechanisms and potential role of interactions between the microglia/macrophages and OPCs are poorly understood. Here, we generated a transcriptional profile of exosomes from activated microglia, and found that miR-615-5p was elevated. miR-615-5p bound to …
Maestros Of Anesthesia, Romeesa Khan, Rodney M Ritzel
Maestros Of Anesthesia, Romeesa Khan, Rodney M Ritzel
Journal Articles
Microglia regulate anesthesia by altering the activity of neurons in specific regions of the brain via a purinergic receptor.
In Sickness And In Health-Type I Interferon And The Brain, Wei Cao
In Sickness And In Health-Type I Interferon And The Brain, Wei Cao
Journal Articles
Type I interferons (IFN-I) represent a group of pleiotropic cytokines renowned for their antiviral activity and immune regulatory functions. A multitude of studies have unveiled a critical role of IFN-I in the brain, influencing various neurological processes and diseases. In this mini-review, I highlight recent findings on IFN-I's effects on brain aging, Alzheimer's disease (AD) progression, and central nervous system (CNS) homeostasis. The multifaceted influence of IFN-I on brain health and disease sheds light on the complex interplay between immune responses and neurological processes. Of particular interest is the cGAS-STING-IFN-I axis, which extensively participates in brain aging and various forms …