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Mtor: Alzheimer's Disease Prevention For Apoe4 Carriers, Ai-Ling Lin, D. Allan Butterfield, Arlan Richardson

Sanders-Brown Center on Aging Faculty Publications

No abstract provided.

1H-Mrs Metabolites In Adults With Down Syndrome: Effects Of Dementia, Ai-Ling Lin, David Powell, Allison Caban-Holt, Gregory A. Jicha, William C. Robertson, Brian T. Gold, Roberta Davis, Erin L. Abner, Donna M. Wilcock, Frederick A. Schmitt, Elizabeth Head

Sanders-Brown Center on Aging Faculty Publications

To determine if proton magnetic resonance spectroscopy (¹H-MRS) detect differences in dementia status in adults with Down syndrome (DS), we used ¹H-MRS to measure neuronal and glial metabolites in the posterior cingulate cortex in 22 adults with DS and in 15 age- and gender-matched healthy controls. We evaluated associations between ¹H-MRS results and cognition among DS participants. Neuronal biomarkers, including N-acetylaspartate (NAA) and glutamate-glutamine complex (Glx), were significantly lower in DS patients with Alzheimer's should probably be changed to Alzheimer (without ' or s) through ms as per the new naming standard disease (DSAD) when …

Interaction Of Tau With The Rna-Binding Protein Tia1 Regulates Tau Pathophysiology And Toxicity, Tara Vanderweyde, Daniel J. Apicco, Katherine Youmans-Kidder, Peter E. A. Ash, Casey Cook, Edroaldo Lummertz Da Rocha, Karen Jansen-West, Alissa A. Frame, Allison Citro, John D. Leszyk, Pavel Ivanov, Jose F. Abisambra, Martin Steffen, Hu Li, Leonard Petrucelli, Benjamin Wolozin

Sanders-Brown Center on Aging Faculty Publications

Dendritic mislocalization of microtubule associated protein tau is a hallmark of tauopathies, but the role of dendritic tau is unknown. We now report that tau interacts with the RNA-binding protein (RBP) TIA1 in brain tissue, and we present the brain-protein interactome network for TIA1. Analysis of the TIA1 interactome in brain tissue from wild-type (WT) and tau knockout mice demonstrates that tau is required for normal interactions of TIA1 with proteins linked to RNA metabolism, including ribosomal proteins and RBPs. Expression studies show that tau regulates the distribution of TIA1, and tau accelerates stress granule (SG) formation. Conversely, TIA1 knockdown …

Plasma Neuronal Exosomal Levels Of Alzheimer's Disease Biomarkers In Normal Aging, Erin L. Abner, Gregory A. Jicha, Leslie M. Shaw, John Q. Trojanowski, Edward J. Goetzl

Sanders-Brown Center on Aging Faculty Publications

Plasma neuronal exosomal levels of pathogenic Alzheimer's disease (AD) proteins, cellular survival factors, and lysosomal proteins distinguish AD patients from control subjects, but changes in these exosomal proteins associated with normal aging have not been described for cognitively intact subjects. Plasma neuronal exosomal levels of P-T181-tau, P-S396-tau, Aβ_1-42, cathepsin D, repressor element 1-silencing transcription factor, and neurogranin were quantified longitudinally in cognitively intact older adults using two samples collected at 3- to 11-year intervals. Except for P-S396-tau, exosomal protein levels changed significantly with aging, but were largely outside the range observed in AD patients.

Transnational Ties Within Azorean Multigenerational Kinship Groups: Multi-Connectedness And Icts, Ana Gherghel, Josiane Le Gall

disClosure: A Journal of Social Theory

This article analyzes the influence of ICTs use on transnational connections and on their perpetuation over time within multigenerational kinship groups dispersed in several countries. Evidence from a multi-sited ethnographic research dedicated to migration from the Azores archipelago (Portugal) to the province of Quebec (Canada) provides information about factors explaining transnational practice over several decades. Our data indicate an overall intensification of transnational contacts due to increasing accessibility of new technologies. However, this process takes place in a family environment characterized by multi-connectedness, a capacity to maintain multiple active ties with siblings living in various countries and using multiple modalities. …

The Tnfα-Transgenic Rat: Hippocampal Synaptic Integrity, Cognition, Function, And Post-Ischemic Cell Loss, L. Creed Pettigrew, Richard J. Kryscio, Christopher M. Norris

Sanders-Brown Center on Aging Faculty Publications

The cytokine, tumor necrosis factor α (TNFα), is a key regulator of neuroinflammation linked to numerous neurodegenerative conditions and diseases. The present study used transgenic rats that overexpress a murine TNFα gene, under the control of its own promoter, to investigate the impact of chronically elevated TNFα on hippocampal synaptic function. Neuronal viability and cognitive recovery in TNFα Tg rats were also determined following an ischemic insult arising from reversible middle cerebral artery occlusion (MCAO). Basal CA3-CA1 synaptic strength, recorded in acute brain slices, was not significantly different between eight-week-old TNFα Tg rats and non-Tg rats. In contrast, slices from …

Mw151 Inhibited Il-1Β Levels After Traumatic Brain Injury With No Effect On Microglia Physiological Responses, Adam D. Bachstetter, Zhengqiu Zhou, Rachel K. Rowe, Bin Xing, Danielle S. Goulding, Alyssa N. Conley, Pradoldej Sompol, Shelby Meier, Jose F. Abisambra, Jonathan Lifshitz, D. Martin Watterson, Linda J. Van Eldik

Sanders-Brown Center on Aging Faculty Publications

A prevailing neuroinflammation hypothesis is that increased production of proinflammatory cytokines contributes to progressive neuropathology, secondary to the primary damage caused by a traumatic brain injury (TBI). In support of the hypothesis, post-injury interventions that inhibit the proinflammatory cytokine surge can attenuate the progressive pathology. However, other post-injury neuroinflammatory responses are key to endogenous recovery responses. Therefore, it is critical that pharmacological attenuation of detrimental or dysregulated neuroinflammatory processes avoid pan-suppression of inflammation. MW151 is a CNS-penetrant, small molecule experimental therapeutic that restores injury- or disease-induced overproduction of proinflammatory cytokines towards homeostasis without immunosuppression. Post-injury administration of MW151 in a …

AΒ40 Reduces P-Glycoprotein At The Blood-Brain Barrier Through The Ubiquitin-Proteasome Pathway, Anika M. S. Hartz, Yu Zhong, Andrea Wolf, Harry Levine Iii, David S. Miller, Björn Bauer

Sanders-Brown Center on Aging Faculty Publications

Failure to clear amyloid-β (Aβ) from the brain is in part responsible for Aβ brain accumulation in Alzheimer's disease (AD). A critical protein for clearing Aβ across the blood–brain barrier is the efflux transporter P-glycoprotein (P-gp) in the luminal plasma membrane of the brain capillary endothelium. P-gp is reduced at the blood–brain barrier in AD, which has been shown to be associated with Aβ brain accumulation. However, the mechanism responsible for P-gp reduction in AD is not well understood. Here we focused on identifying critical mechanistic steps involved in reducing P-gp in AD. We …

Factors Associated With Unmet Needs Among African-American Dementia Care Providers, P. J. Desin, Allison M. Caban-Holt, Erin L. Abner, Linda J. Van Eldik, Frederick A. Schmitt

Sanders-Brown Center on Aging Faculty Publications

Racial and ethnic minorities currently comprise 20% of the U.S. population; in 2050, this figure is expected to rise to 42%. As a result, Alzheimer’s disease (AD), the 5th leading cause of death for people aged 65 and older, is likely to increase in these groups. Most dementia caregiving for these populations comes from family and friends, especially among families with lower socioeconomic status. A convenience sample of 30 African-American dementia caregivers was interviewed to determine unmet needs. Participants expressed a limited desire for formal services, such as support groups, legal advice, case management, and homemaker services. Instead, commonly expressed …

Pathological Tau Promotes Neuronal Damage By Impairing Ribosomal Function And Decreasing Protein Synthesis, Shelby Meier, Michelle Bell, Danielle N. Lyons, Jennifer Rodriguez-Rivera, Alexandria Ingram, Sarah N. Fontaine, Elizabeth Mechas, Jing Chen, Benjamin Wolozin, Harry Levine Iii, Haining Zhu, Jose F. Abisambra

Sanders-Brown Center on Aging Faculty Publications

One of the most common symptoms of Alzheimer's disease (AD) and related tauopathies is memory loss. The exact mechanisms leading to memory loss in tauopathies are not yet known; however, decreased translation due to ribosomal dysfunction has been implicated as a part of this process. Here we use a proteomics approach that incorporates subcellular fractionation and coimmunoprecipitation of tau from human AD and non-demented control brains to identify novel interactions between tau and the endoplasmic reticulum (ER). We show that ribosomes associate more closely with tau in AD than with tau in control brains, and that this abnormal association leads …

Effects Of Timing Of Parental Divorce On Children’S Romantic Relationships In Adulthood: A Review, Adrian Weldon

Lewis Honors College Capstone Collection

A literature review was conducted to determine what age children are most vulnerable to the impact of parental divorce on their romantic relationships in adulthood. Fourteen articles were included in this review. Results of the review showed different outcomes based on stage of life. Parental divorce in infancy, early childhood, late childhood, and adolescence resulted in the most negative long-term effects on the children’s intimate relationships later in life. Children in middle childhood and young adulthood at the time of their parents’ marital dissolution appeared to be most resilient to its impact on their romantic relationships in adulthood. Literature on …

Retrospective Frames Of Disability: Themes Derived From Parents Of Children Who Grew Up With Congenital Disability, Sheryl L. Holt

Theses and Dissertations--Rehabilitation Sciences

Introduction: For children born with physical disabilities, the perspectives and actions of their parents prove significant to their childhood developmental outcomes clinically, educationally, socially, and with regard to community participation. The lived world and perceptions of parents who have children with disabilities however is not well investigated. This study sought to understand parents’ framing of theirs and their children’s disability experiences. Family systems together with family systems intervention models, and disability theory were used to provide structure to interview instrumentation and subsequent analysis. Child-centered and ecologic influences were also used to track the transformative processes over time that infuses parental …

"Don't Have Sex, You'll Get Pregnant And Die!": Female University Students' Experiences With Abstinence-Only Education, Jillian Grace Norwick

Theses and Dissertations--Family Sciences

Based on the various changes in sexual education, many schools throughout the United States still teach abstinence-only education. There is a plethora of literature on the effectiveness of sexual education programs as well as adolescent sexual practices. However, there is a deep gap in literature on students' perspectives of their sexual education and the possible effects it has on their experiences while in college. Therefore, this phenomenological study aims to explore and describe the essence of the experience female university students have regarding the abstinence-only education they received during secondary schooling. The informants (n=12) were 19-22 year old female university …

Family Dinner Across Generations: My How Times Have Changed?, Dayna E. Parrett

Theses and Dissertations--Family Sciences

In an effort to determine differences between family dinners across generations, this study examined typical family dinners of participants and how they have changed across the four generations addressed. Previous qualitative research has been conducted to determine communication frames that occur during family dinners and the effect of parenting styles on family dinners, but little research connecting generational differences to family dinners has been published. Data were collected from a homogeneous sample of twenty-four women living in three counties across the Commonwealth of Kentucky. By asking open ended questions during interviews, similarities and differences between family dinners across generations were …

Hosting An International Exchange Youth: The Influence On The Family, Mark Mains

Theses and Dissertations--Family Sciences

This study explores how hosting an international exchange youth influences families. Participants in the study took part in a four-week summer exchange by hosting a middle school aged Japanese youth through the Kentucky 4-H/Labo program. Labo is a Japanese club program that encourages youth to learn about American culture through international travel. As society becomes more globalized, the skills and abilities associated with international travel are increasingly important (Anderson, Lawton, Rexeisen & Hubbard, 2006). Hosting international youth through exchange programs is one method of developing these skills and abilities. This qualitative study uses thematic analysis to analyze three primary data …

College-Educated, African American Women's Marital Choices, Katherine M. Oliver

Theses and Dissertations--Family Sciences

This study explores the desire to marry, marriageable mate criteria, and marital choices/options as they pertain to college-educated, African American women within today’s society. A purposive, nationally based sample (N = 95) of never married, college-educated, African American women (i.e., 18 to 40 years of age) was gathered via an online survey accessed by an emailed link. A mixed methods approach was utilized within the survey design, followed by data analyses (i.e., frequencies, two-way analyses) interpreted through a theoretical framework of social exchange. Areas discussed include life goals of marriage, cohabitation, and career; romantic barriers; the perceived availability of …

Effect Of Mass Media On Family Planning Choices In Indonesia, Beta Ardiansyah

MPA/MPP/MPFM Capstone Projects

Realizing the necessity of family planning, the Indonesian government started family planning programs in the late 1960s, long before the global Program of Action from the International Conference of Population (ICPD) in 1994.

Many studies have tried to draw plausible explanations for the prevalence of family planning focused mainly on socio-economic factors but few studies have approached the issue from the perspective of mass media influence as the variable of interest. This study attempts to fill this gap created by the lack of empirical evidence about mass media effects of family planning choices by examining the contraceptive behavior of Indonesian …

Reducing Depression Among Older Adults: Informal Helping Versus Volunteering, Salih Salihoglu

MPA/MPP/MPFM Capstone Projects

Volunteerism is an unpaid productive activity that is exercised within a formal organization to benefit others that are not part of family or friends (Musick & Wilson, 2008). Alternatively, individuals could engage in informal helping which would be an activity undertaken outside a formal, structured organization. This paper addresses whether informal helping is also effective in reducing depression for older adults alongside volunteering. I hypothesize that informal helping is effective in reducing depression only when exercised for short durations. On the other hand, I hypothesize that volunteerism is only effective when exercised for long periods of time. I try to …

Rapamycin Rescues Vascular, Metabolic And Learning Deficits In Apolipoprotein E4 Transgenic Mice With Pre-Symptomatic Alzheimer’S Disease, Ai-Ling Lin, Jordan B. Jahrling, Wei Zhang, Nicholas Derosa, Vikas Bakshi, Peter Romero, Veronica Galvan, Arlan Richardson

Sanders-Brown Center on Aging Faculty Publications

Apolipoprotein E ɛ4 allele is a common susceptibility gene for late-onset Alzheimer's disease. Brain vascular and metabolic deficits can occur in cognitively normal apolipoprotein E ɛ4 carriers decades before the onset of Alzheimer's disease. The goal of this study was to determine whether early intervention using rapamycin could restore neurovascular and neurometabolic functions, and thus impede pathological progression of Alzheimer's disease-like symptoms in pre-symptomatic Apolipoprotein E ɛ4 transgenic mice. Using in vivo, multimodal neuroimaging, we found that apolipoprotein E ɛ4 mice treated with rapamycin had restored cerebral blood flow, blood–brain barrier integrity and glucose metabolism, compared …

Early Shifts Of Brain Metabolism By Caloric Restriction Preserve White Matter Integrity And Long-Term Memory In Aging Mice, Janet Guo, Vikas Bakshi, Ai-Ling Lin

Sanders-Brown Center on Aging Faculty Publications

Preservation of brain integrity with age is highly associated with lifespan determination. Caloric restriction (CR) has been shown to increase longevity and healthspan in various species; however, its effects on preserving living brain functions in aging remain largely unexplored. In the study, we used multimodal, non-invasive neuroimaging (PET/MRI/MRS) to determine in vivo brain glucose metabolism, energy metabolites, and white matter structural integrity in young and old mice fed with either control or 40% CR diet. In addition, we determined the animals’ memory and learning ability with behavioral assessments. Blood glucose, blood ketone bodies, and body weight were also measured. We …

Mice Deficient In Endothelial Α5 Integrin Are Profoundly Resistant To Experimental Ischemic Stroke, Jill Roberts, Leon De Hoog, Gregory J. Bix

Sanders-Brown Center on Aging Faculty Publications

Stroke is a disease in dire need of better therapies. We have previously shown that a fragment of the extracellular matrix proteoglycan, perlecan, has beneficial effects following cerebral ischemia via the α5β1 integrin receptor. We now report that endothelial cell selective α5 integrin deficient mice (α5 KO) are profoundly resistant to ischemic infarct after transient middle cerebral artery occlusion. Specifically, α5 KOs had little to no infarct 2–3 days post-stroke, whereas controls had an increase in mean infarct volume over the same time period as expected. Functional outcome is also improved in the α5 KOs compared with controls. Importantly, no …

Time-Dependent Effects Of Cx3cr1 In A Mouse Model Of Mild Traumatic Brain Injury, Heidi Y. Febinger, Hannah E. Thomasy, Maria N. Pavlova, Kristyn M. Ringgold, Paulien R. Barf, Amrita M. George, Jenna N. Grillo, Adam D. Bachstetter, Jenny A. Garcia, Astrid E. Cardona, Mark R. Opp, Carmelina Gemma

Sanders-Brown Center on Aging Faculty Publications

BACKGROUND: Neuroinflammation is an important secondary mechanism that is a key mediator of the long-term consequences of neuronal injury that occur in traumatic brain injury (TBI). Microglia are highly plastic cells with dual roles in neuronal injury and recovery. Recent studies suggest that the chemokine fractalkine (CX3CL1, FKN) mediates neural/microglial interactions via its sole receptor CX3CR1. CX3CL1/CX3CR1 signaling modulates microglia activation, and depending upon the type and time of injury, either protects or exacerbates neurological diseases.

METHODS: In this study, mice deficient in CX3CR1 were subjected to mild controlled cortical impact injury (CCI), a model of TBI. We evaluated …

Ebony And Ivory? Interracial Dating Intentions And Behaviors Of Disadvantaged African American Women In Kentucky, David J. Luke, Carrie B. Oser

Sociology Faculty Publications

Using data from 595 predominantly disadvantaged African American women in Kentucky, this study examines perceptions about racial/ethnic partner availability, cultural mistrust, and racism as correlates of interracial dating intentions and behaviors with both white and Hispanic men. Participants reported levels of dating intentions and behaviors were significantly higher with whites than Hispanics. The multivariate models indicate less cultural mistrust and believing it is easier to find a man of that racial/ethnic category were associated with higher interracial dating intentions. Women were more likely to have dated a white man if they believed it was easier to find a white man …

Albumin Administration In Acute Ischemic Stroke: Safety Analysis Of The Alias Part 2 Multicenter Trial, Michael D. Hill, Renee H. Martin, Yuko Y. Palesch, Claudias S. Moy, Diego Tamariz, Karla J. Ryckborst, Elizabeth B. Jones, David Weisman, L. Creed Pettigrew, Myron D. Ginsberg

Sanders-Brown Center on Aging Faculty Publications

BACKGROUND: Albumin treatment of ischemic stroke was associated with cardiopulmonary adverse events in previous studies and a low incidence of intracranial hemorrhage. We sought to describe the neurological and cardiopulmonary adverse events in the ALIAS Part 2 Multicenter Trial.

METHODS: Ischemic stroke patients, aged 18-83 and a baseline NIHSS ≥ 6, were randomized to treatment with ALB or saline control within 5 hours of stroke onset. Neurological adverse events included symptomatic intracranial hemorrhage, hemicraniectomy, neurological deterioration and neurological death. Cardiopulmonary adverse events included pulmonary edema/congestive heart failure, acute coronary syndromes, atrial fibrillation, pneumonia and pulmonary thromboembolism.

RESULTS: …

Altered Lysosomal Proteins In Neural-Derived Plasma Exosomes In Preclinical Alzheimer Disease, Edward J. Goetzl, Adam Boxer, Janice B. Schwartz, Erin L. Abner, Ronald C. Petersen, Bruce L. Miller, Dimitrios Kapogiannis

Sanders-Brown Center on Aging Faculty Publications

OBJECTIVE: Diverse autolysosomal proteins were quantified in neurally derived blood exosomes from patients with Alzheimer disease (AD) and controls to investigate disordered neuronal autophagy.

METHODS: Blood exosomes obtained once from patients with AD (n = 26) or frontotemporal dementia (n = 16), other patients with AD (n = 20) both when cognitively normal and 1 to 10 years later when diagnosed, and case controls were enriched for neural sources by anti-human L1CAM antibody immunoabsorption. Extracted exosomal proteins were quantified by ELISAs and normalized with the CD81 exosomal marker.

RESULTS: Mean exosomal levels of cathepsin D, lysosome-associated membrane …

Low Neural Exosomal Levels Of Cellular Survival Factors In Alzheimer's Disease, Edward J. Goetzl, Adam Boxer, Janice B. Schwartz, Erin Abner, Ronald C. Petersen, Bruce L. Miller, Olga D. Carlson, Maja Mustapic, Dimitrios Kapogiannis

Sanders-Brown Center on Aging Faculty Publications

Transcription factors that mediate neuronal defenses against diverse stresses were quantified in plasma neural-derived exosomes of Alzheimer's disease or frontotemporal dementia patients and matched controls. Exosomal levels of low-density lipoprotein receptor-related protein 6, heat-shock factor-1, and repressor element 1-silencing transcription factor all were significantly lower in Alzheimer's disease patients than controls (P < 0.0001). In frontotemporal dementia, the only significant difference was higher levels of repressor element 1-silencing transcription factor than in controls. Exosomal transcription factors were diminished 2-10 years before clinical diagnosis of Alzheimer's disease. Low exosomal levels of survival proteins may explain decreased neuronal resistance to Alzheimer's disease neurotoxic proteins.

Apoε2 And Education In Cognitively Normal Older Subjects With High Levels Of Ad Pathology At Autopsy: Findings From The Nun Study, Diego Iacono, Peter Zandi, Myron Gross, William R. Markesbery, Olga Pletnikova, Gay Rudow, Juan C. Troncoso

Sanders-Brown Center on Aging Faculty Publications

Asymptomatic Alzheimer's disease (ASYMAD) subjects are individuals characterized by preserved cognition before death despite substantial AD pathology at autopsy. ASYMAD subjects show comparable levels of AD pathology, i.e. β-amyloid neuritic plaques (Aβ-NP) and tau-neurofibrillary tangles (NFT), to those observed in mild cognitive impairment (MCI) and some definite AD cases. Previous clinicopathologic studies on ASYMAD subjects have shown specific phenomena of hypertrophy in the cell bodies, nuclei, and nucleoli of hippocampal pyramidal neurons and other cerebral areas. Since it is well established that the allele APOε4 is a major genetic risk factor for AD, we examined whether specific alleles of APOE …

Calcium Channel Blockers, Progression To Dementia, And Effects On Amyloid Beta Peptide Production, Mark A. Lovell, Erin Abner, Richard Kryscio, Liou Xu, Shuling X. Fister, Bert C. Lynn

Sanders-Brown Center on Aging Faculty Publications

Previous epidemiologic studies suggest that antihypertensive drugs may be protective against cognitive decline. To determine if subjects enrolled in the University of Kentucky longitudinal aging study who used antihypertensive drugs showed diminished progression to dementia, we used a 3-parameter logistic regression model to compare the rate of progression to dementia for subjects who used any of the five common categories of antihypertensive drugs to those with similar demographic characteristics but who did not use antihypertensives. Regression modeling showed that subjects who used calcium channel blockers (CCBs) but not the other classes of antihypertensives showed a significant decrease in the rate …

Closed Head Injury In An Age-Related Alzheimer Mouse Model Leads To An Altered Neuroinflammatory Response And Persistent Cognitive Impairment, Scott J. Webster, Linda J. Van Eldik, D. Martin Watterson, Adam D. Bachstetter

Sanders-Brown Center on Aging Faculty Publications

Epidemiological studies have associated increased risk of Alzheimer's disease (AD)-related clinical symptoms with a medical history of head injury. Currently, little is known about pathophysiology mechanisms linked to this association. Persistent neuroinflammation is one outcome observed in patients after a single head injury. Neuroinflammation is also present early in relevant brain regions during AD pathology progression. In addition, previous mechanistic studies in animal models link neuroinflammation as a contributor to neuropathology and cognitive impairment in traumatic brain injury (TBI) or AD-related models. Therefore, we explored the potential interplay of neuroinflammatory responses in TBI and AD by analysis of the temporal …

Attenuation Of Traumatic Brain Injury-Induced Cognitive Impairment In Mice By Targeting Increased Cytokine Levels With A Small Molecule Experimental Therapeutic, Adam D. Bachstetter, Scott J. Webster, Danielle S. Goulding, Jonathan E. Morton, D. Martin Watterson, Linda J. Van Eldik

Sanders-Brown Center on Aging Faculty Publications

BACKGROUND: Evidence from clinical studies and preclinical animal models suggests that proinflammatory cytokine overproduction is a potential driving force for pathology progression in traumatic brain injury (TBI). This raises the possibility that selective targeting of the overactive cytokine response, a component of the neuroinflammation that contributes to neuronal dysfunction, may be a useful therapeutic approach. MW151 is a CNS-penetrant, small molecule experimental therapeutic that selectively restores injury- or disease-induced overproduction of proinflammatory cytokines towards homeostasis. We previously reported that MW151 administered post-injury (p.i.) is efficacious in a closed head injury (CHI) model of diffuse TBI in mice. Here we test …