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Jennifer R. Fonda

Jennifer R. Fonda
Boston VA Healthcare System, Boston, United States

PhD, MA

About

70
Publications
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1,451
Citations

Publications

Publications (70)
Article
Adolescence represents a critical period of neural development during which binge drinking (BD) is prevalent. Though prior work has shown that white matter (WM) integrity is susceptible to damage from excessive alcohol intake in adults, the effect of early adolescent BD on WM health in adulthood remains unknown. Veterans with a history of BD onset...
Article
Objective: The primary aim included explorations of: (1) the associations between the history of blast exposure (BE), close blast exposure (CBE), and blast-related traumatic brain injury (bTBI) and metabolic abnormality; and (2) the potential mediating effect of comorbid psychological and somatic conditions on these associations. The secondary aim...
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Full-text available
While genome wide association studies (GWASs) of Alzheimer’s Disease (AD) in European (EUR) ancestry cohorts have identified approximately 83 potentially independent AD risk loci, progress in non-European populations has lagged. In this study, data from the Million Veteran Program (MVP), a biobank which includes genetic data from more than 650,000...
Article
Introduction: Post-traumatic stress disorder (PTSD) and traumatic brain injury (TBI) confer risk for Alzheimer's disease and related dementias (ADRD). Methods: This study from the Million Veteran Program (MVP) evaluated the impact of apolipoprotein E (APOE) ε4, PTSD, and TBI on ADRD prevalence in veteran cohorts of European ancestry (EA; n = 11,...
Article
Recent‐era U.S. veterans are clinically complex, with a high prevalence of co‐occurring mild traumatic brain injury (mTBI), psychiatric conditions, and behavioral dysfunction. The current study examined the direct and indirect associations between mTBI and persistent neurobehavioral, psychiatric, and functional disability symptoms among recent‐era...
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Posttraumatic Stress Disorder (PTSD) symptomatology is associated with dysregulated sustained attention, which produces functional impairments. Performance on sustained attention paradigms such as continuous performance tasks are influenced by both the ability to sustain attention and response strategy. However, previous studies have not dissociate...
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Objective This study examined cognitive functioning in post-9/11 Veterans with the deployment trauma phenotype (DTP), comprised of co-occurring diagnoses of depressive disorder (major depressive disorder and or persistent depressive disorder/dysthymia), posttraumatic stress disorder (PTSD), and mild traumatic brain injury (mTBI), using objective ne...
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Introduction: Since 2006, efforts have been made to increase the accurate identification of traumatic brain injuries (TBIs) in post-9/11 military personnel. The Boston Assessment of TBI-Lifetime (BAT-L) is the first validated instrument designed specifically to diagnose TBIs throughout the life span in post-9/11 Veterans. The objective was to comp...
Preprint
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We conducted the largest genome-wide association study (GWAS) of Alzheimer’s disease and related dementia (ADRD) in individuals of African-ancestry (AFR) to date using participants from the Million Veteran Program (MVP; 4,012 ADRD cases and 18,435 controls). A proxy GWAS based on survey-reported parental dementia (n=6,641 proxy cases, 45,970 contro...
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Mild traumatic brain injury (mTBI) is among the most common injuries sustained by post-9/11 veterans; however, these injuries often occur within the context of psychological trauma. Blast exposure, even in the absence of a diagnosable TBI, leads to changes in neural connectivity and congitive functioning. Therefore, considering clinical comorbiditi...
Article
Cross‐sectional work suggests that deployment‐related posttraumatic sequelae are associated with increased disability in U.S. veterans deployed following the September 11, 2001 (9/11), terrorist attacks. However, few studies have examined the psychiatric and somatic variables associated with changes in functional disability over time. A total of 23...
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Intimate partner violence (IPV) is prevalent among Veterans. Injuries to head, neck, and face are frequent and elevate risk for traumatic brain injury (TBI). IPV also increases risk for mental health morbidity. A better understanding of IPV’s impact on health and functioning is needed among Veterans to inform assessment and intervention. This study...
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Maladaptive anger and aggression are common in United States military veterans and increases risk for impaired social relationships and functioning, justice‐involvement, and violence. Early life (before age 18) adversity predisposes veterans to later life psychopathology, though the link to increased later life anger is unclear. We analyzed cross‐s...
Article
The Clinician-Administered PTSD Scale (CAPS) is used to measure posttraumatic stress symptoms (PTSS) and diagnose posttraumatic stress disorder (PTSD). However, its use, particularly in settings involving longitudinal assessment, has been complicated by changes in the diagnostic criteria between the fourth and fifth editions of the Diagnostic and S...
Article
Background Post-9/11 veterans exhibit high prevalence of deployment stress, psychological conditions, and traumatic brain injury (TBI) which impact reintegration, especially among those with a history of interpersonal early life trauma (I-ELT). The relative importance of each risk factor is unclear. Purpose We examined major deployment and clinica...
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Full-text available
Post-9/11 Veterans are clinically complex with multiple co-occurring health conditions that lead to increased morbidity and mortality, risk for suicide, and decreased quality of life, but underutilization and resistance to treatment remain significant problems. Increased isolation and decreased community and social support due to coronavirus diseas...
Article
Posttraumatic Stress Disorder (PTSD) symptomatology disrupts inhibitory control during sustained attention. However, PTSD-related inhibitory control deficits are partially ameliorated when punishments and rewards are administered based on task performance, which suggests motivational processes contribute to these deficits. Additionally, PTSD may al...
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While chronic visual symptom complaints are common among Veterans with a history of mild traumatic brain injury (mTBI), research is still ongoing to characterize the pattern of visual deficits that is most strongly associated with mTBI and specifically, the impact of blast-related mTBI on visual functioning. One area that has not been well explored...
Article
Chronic elevation of systemic inflammation is observed in a wide range of disorders including PTSD, depression, and traumatic brain injury. Although previous work has demonstrated a link between inflammation and various diagnoses separately, few studies have examined transdiagnostic symptoms and inflammation within the same model. The objective of...
Preprint
Full-text available
Background: Since 2006, efforts have been made to increase the identification of traumatic brain injuries (TBIs) in post-9/11 military personnel. The BAT-L is the first validated instrument to diagnose TBIs throughout the lifespan in post-9/11 Veterans. The objective is to investigate the correspondence of the Boston Assessment of TBI-Lifetime (BAT...
Article
Objective: Adapt the Boston Assessment of TBI–Lifetime (BAT-L) interview specifically for female survivors of intimate partner violence (IPV), validate the adapted BAT-L/IPV, and report prevalence of head injury. Setting: The BAT-L is the first validated instrument to diagnose traumatic brain injuries (TBIs) throughout the lifespan for post-9/11 V...
Article
Background A major obstacle in understanding and treating posttraumatic stress disorder (PTSD) is its clinical and neurobiological heterogeneity. To address this barrier, the field has become increasingly interested in identifying subtypes of PTSD based on dysfunction in neural networks alongside cognitive impairments that may underlie the developm...
Article
Background Adolescence is a critical period for neural development and has been associated with high rates of alcohol abuse. This research examined potential long‐term brain and behavior effects in early versus late onset adolescent binge drinking in an adult sample of post‐9/11 Veterans. Methods We compared cortical thickness measures in Veterans...
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Full-text available
The number of women in the United States that experience blows to the head during assaults by intimate partners is substantial. The number of head blows that result in a traumatic brain injury (TBI) is virtually unknown, but estimates far exceed numbers of TBI in parallel populations (e.g., blast exposure, accidents, sports) combined. Research on t...
Article
Elevated serum C-reactive protein (CRP) and possessing an APOE ε4 allele are two of the most prominent risk factors for cognitive and neurological dysfunction in older adults, but little is known about the unique or cumulative effects of these risk factors in young-to-middle aged adults. To further characterize these potential relationships, measur...
Article
Objectives Recent studies suggest that close-range blast exposure (CBE), regardless of acute concussive symptoms, may have negative long-term effects on brain health and cognition; however, these effects are highly variable across individuals. One potential genetic risk factor that may impact recovery and explain the heterogeneity of blast injury’s...
Article
Metabolic syndrome (MetS) is a cluster of vascular risk factors that can impact cognition. Cognitive reserve (CR), specifically early operators of reserve (e.g., education), have not been explored in the relationship between MetS and cognition. Adults 45-90 years old (n = 149) underwent neuropsychological testing and evaluation for MetS. Explorator...
Article
Aims: To demonstrate that early adolescent binge drinking (BD) increases the risk for and/or severity of psychopathology in post-9/11 Veterans and determine if mild traumatic brain injury (mTBI) modifies risk. Methods: Post-9/11 Veterans (n = 375) were classified into two groups: 57 Veterans with a history of early adolescent BD (E-BD; age of on...
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Background: Cerebral blood flow (CBF) is critically important in the overall maintenance of brain health, and disruptions in normal flow have been linked to the degradation of the brain's structural integrity and function. Recent studies have highlighted the potential role of CBF as a link between psychiatric disorders and brain integrity. Althoug...
Article
Intimate partner violence (IPV) refers to emotional, physical, and/or sexual abuse perpetrated by a current or former partner. IPV affects both genders, though little is known about its effects on men as victims. The aims of this study were to determine if IPV is a factor contributing to posttraumatic stress disorder (PTSD) severity independently o...
Article
Due to the use of improvised explosive devices, blast exposure and mild traumatic brain injury (mTBI) have become hallmark injuries of the Iraq and Afghanistan wars. Although the mechanisms of the effects of blast on human neuro-biology remain active areas of investigation, research suggests that the cerebrovasculature may be particularly vulnerabl...
Article
Returning veterans often face multiple concurrent psychiatric and behavioral conditions that negatively impact reintegration into civilian life and are associated with functional disability. Understanding how conditions interact to negatively impact functioning is an important step toward developing holistic treatment approaches optimized for this...
Article
Introduction Post-traumatic stress disorder (PTSD) is associated with an increased risk of cardiovascular and metabolic diseases and physical inactivity. Cardiorespiratory fitness (CRF), which is modifiable by physical activity, is a strong independent predictor of cardiometabolic health. However, the relationship between CRF and cardiometabolic he...
Article
Objective: To evaluate the association between traumatic brain injury (TBI) and nonfatal opioid overdose, and the role of psychiatric conditions as mediators of this association. Setting: Post-9/11 veterans receiving care at national Department of Veterans Affairs (VA) facilities from 2007 to 2012. Participants: In total, 49 014 veterans aged...
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Background: Evidence suggests that single nucleotide polymorphisms (SNPs) in genes involved in serotonergic signaling and stress response pathways moderate associations between PTSD and cortical thickness. This study examined a genetic regulator of these pathways, the PPM1F gene, which has also been implicated in mechanisms of stress responding and...
Article
Military to civilian reintegration is a complex, multidimensional phenomenon warranting holistic perspectives. Complex phenomena require theory to understand and interpret relationships among concepts. Despite the need for theory-driven research, recent nursing reports often lack a theoretical structure. We extracted relevant concepts from the Neum...
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Rationale Tobacco use is highly prevalent among individuals with posttraumatic stress disorder (PTSD), depressive disorders, and pain. Research has revealed pairwise relationships among these conditions but has not examined more complex relationships that may influence symptom severity, chronicity, and treatment outcome. Objective To examine the c...
Article
Objective: It is increasingly recognized that trauma victims, particularly Veterans, have co-occurring psychological and physical conditions that impact cognition, especially the domains of sustained attention and executive functioning. Although previous work has generally attempted to isolate the unique cognitive effects of common combat-related...
Article
Objective: This study examined the impact of early life trauma (ELT) on cardio-metabolic health in veterans from post-9/11 conflicts who experience significant stress from deployment and reintegration. Method: Three hundred thirty-seven veterans from the Translational Research Center for Traumatic Brain Injury and Stress Disorders study underwen...
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Objective: Confirmatory factor analysis (CFA) has previously been employed to examine the latent factor structure of posttraumatic stress disorder (PTSD) symptoms with mixed results. A limited number of studies examined PTSD factor structure among veterans of recent military conflicts. This study examined the relationship between PTSD factor struc...
Article
Objective: This study assessed the strength of military-related concussion-, psychological-, and behavioral-related measures to predict neurobehavioral symptom (NBS) reporting in order to help clarify the extent to which persistent NBS reflect lingering effects of concussion vs other psychological/behavioral factors among veterans. Methods: Base...
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Objective: To evaluate the feasibility of a newly developed reintegration workshop for Operation Iraqi Freedom/Operation Enduring Freedom (OEF/OIF) Veterans that is based on an evidence-based rehabilitation program shown to be effective in treating mild traumatic brain injury-related symptoms in civilians. Underutilization and resistance to mental...
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Studies of the association between traumatic brain injury (TBI) and suicide attempt have yielded conflicting results. Furthermore, no studies have examined the possible mediating role of common comorbid psychiatric conditions in this association. This study used Veterans Affairs registry data to evaluate the associations between deployment-related...
Article
Full-text available
Objectives: To determine the prevalence of comorbid mild traumatic brain injury (mTBI), posttraumatic stress disorder (PTSD), and depression, termed the deployment trauma phenotype (DTP), and its constituent diagnoses' impact on unemployment status in a national cohort of veterans. Setting: Retrospective analysis of the comprehensive TBI evaluat...
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Objective: Veterans from recent military conflicts frequently report persisting symptoms associated with concussion well beyond the expected period of recovery following mild traumatic brain injury. This study examined differences in the reporting of symptoms associated with concussion between clinical and research contexts. Methods: This natura...
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Many US veterans of Afghanistan and Iraq have multiple physical and psychiatric problems. A major focus of research has been on determining the effects of mild Traumatic Brain Injury (mTBI), but mTBI is rarely diagnosed in the absence of co-occurring conditions such as blast exposure, post-traumatic stress disorder (PTSD), depression, substance abu...
Article
Purpose: The study aimed to test whether directives on opioid prescribing released by the Veterans Health Administration (VHA) or the Food and Drug Administration (FDA) had an impact on prescribing among VHA providers. Methods: We used the VHA's linked pharmacy and patient medical records database to identify new prescriptions written for propox...
Article
Background: Medication reconciliation to identify discrepancies is a National Patient Safety Goal. Increasing medication number and complex medication regimens are associated with discrepancies, nonadherence, and adverse events. The Medication Regimen Complexity Index (MRCI) integrates information about dosage form, dosing frequency, and additiona...
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Objective. Mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD) are common among US veterans of Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn (OEF/OIF/OND). We postulated that these injuries may modulate pain processing in these individuals and affect their subjective pain levels. Design. Cross-section...
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Pseudobulbar affect (PBA), a neurological syndrome characterized primarily by involuntary episodes of laughing and crying, can develop secondary to neurological conditions including traumatic brain injury (TBI). Veterans of the wars in Afghanistan and Iraq have an unprecedented risk for TBI, primarily from blast-related munitions. In this cross-sec...
Article
BACKGROUND Though often recommended, hospital cognitive assessment is infrequently completed due to clinical and time constraints.OBJECTIVE This analysis aimed to evaluate the relationship between performance on ultrabrief cognitive screening instruments and hospital outcomes.DESIGNThis is a secondary data analysis of a quality improvement project....
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Full-text available
Pain, a debilitating condition, is frequently reported by U.S. veterans returning from Afghanistan and Iraq. This study investigated how commonly reported clinical factors were associated with pain and whether these associations differed for individuals with a history of chronic pain. From the Boston metropolitan area, 171 veterans enrolled in the...
Article
The unprecedented increase in unintentional overdose events that has occurred in tandem with escalating sales of prescription opioids over the past 2 decades has raised concerns about whether the therapeutic use of opioids has contributed to increases in overdose injury. Few controlled studies have examined the extent to which ecologic measures of...
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Full-text available
Understanding the factors that influence veterans' functional outcome after deployment is critical to provide appropriately targeted care. Mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD) have been related to disability, but other psychiatric and behavioral conditions are not as well examined. We investigated the impact o...
Article
Continuous antipsychotic treatment is important in schizophrenia, and studies have shown that rates of discontinuation are high. Some studies suggest that weight gain may lead schizophrenic patients to discontinue treatment, whereas other studies show smaller effects of weight gain on medication discontinuation, and some find weight gain associated...
Article
Although there is emerging data on the effects of blast-related concussion (or mTBI) on cognition, the effects of blast exposure itself on the brain have only recently been explored. Toward this end, we examine functional connectivity to the posterior cingulate cortex, a primary region within the default mode network (DMN), in a cohort of 134 Iraq...
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Full-text available
Understanding the factors that influence veterans' functional outcome after deployment is critical to provide appropriately targeted care. Mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD) have been related to disability, but other psychiatric and behavioral conditions are not as well examined. We investigated the impact o...
Article
Full-text available
Observational studies linking proton pump inhibitor (PPI) exposure with community-acquired pneumonia (CAP) have reported either modest or no associations. Accordingly, we studied PPI exposure and CAP in veteran patients, using a retrospective, nested case-control design. From linked pharmacy and administrative databases of the New England Veterans...
Article
Exposure to gadolinium in patients with kidney disease has been linked to risk of developing nephrogenic systemic fibrosis. The US Food and Drug Administration (FDA) has issued warnings against the use of gadolinium in this population. We studied the impact of these warnings on the use of gadolinium-enhanced magnetic resonance (GE-MR) studies in pa...
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Erythropoiesis-stimulating agents (ESAs) are frequently used to treat anaemia of chronic kidney disease (CKD) in the dialysis setting; however, few data are available regarding factors influencing initiation of ESAs and other therapies in non-dialysis patients. A retrospective cohort study of Veterans Health Administration data from 2003 to 2005 fo...
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Proton pump inhibitors (PPIs) are widely used gastric acid suppressants, but they are often prescribed without clear indications and may increase risk of Clostridium difficile infection (CDI). We sought to determine the association between PPI use and the risk of recurrent CDI. Retrospective, cohort study using administrative databases of the New E...
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Although well-described for patients who require dialysis, information on transfusion burden related to anemia in the nondialysis patient population with chronic kidney disease (CKD) is lacking. Design, settings, participants, & measurements: A retrospective study was conducted of patients with CKD and chronic anemia from 2002 through 2007 in the V...
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3518 Poster Board III-455 Introduction Thrombocytopenia [TCP] is a complication of advanced chronic liver disease [CLD]. We examined clinical factors related to the development of severe TCP among patients with initially normal platelet counts using laboratory, clinical, and administrative data from the Veterans Administration Healthcare System, N...

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