Jacob Greenmyer

Dr. Jacob Greenmyer


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 December 2019 in BMC Pediatrics
Verified
Journal Article
Open access
PDF file
CKCassondra Kambeitz
Cassondra Kambeitz
MKMarilyn Klug
Marilyn Klug
JGJacob Greenmyer
Jacob Greenmyer
SPSvetlana Popova
Svetlana Popova
LBLarry Burd
Larry Burd
Background: Fetal alcohol spectrum disorder (FASD) is a highly prevalent lifelong disorder with high rates of comorbid neurodevelopmental disorders. Individuals with FASD are often exposed to abuse, neglect and foster home placements which have uncertain effects on the lifelong course of FASD. In this study we compare the prevalence of adverse childhood events (ACEs) and neurodevelopmental disorders in subjects with fetal alcohol spectrum disorders (FASD) and non-FASD controls. Methods: A cross-sectional chart review of patients referred to a regional developmental center was used to identify people with FASD and non-FASD controls. We recorded the number of ACEs and neurodevelopmental disorders in each patient’s chart. The most common diagnoses were attention deficit hyperactivity disorder, comprehension deficits, sleep disorders, and cognitive impairments. T-tests and a regression equation were utilized to determine significant differences between the groups. Results: The review identified 203 subjects, 98 with FASD and 105 non-FASD controls. Group mean age was 8.6 years and 64.5% were male. People with FASD were more likely to have any ACEs (mean 5.3) with ACE scores 3.7 points higher than non-FASD controls (mean 1.69) (t = 11.29; p < .001). Increased ACEs were associated with increased rates of neurodevelopmental disorders for people with FASD (R = .179, p = .026) but not for non-FASD controls (R = .130, p = .094). Conclusions: Both FASD and subsequent exposure to ACEs are associated with increased risk for development of comorbid neurodevelopmental disorders. Prevention of ACEs during childhood may decrease risk for development of comorbid neurodevelopmental disorders.

29 August 2020 in ACR Open Rheumatology
Verified
Journal Article
Open access
PDF file
JGJacob Greenmyer
Jacob Greenmyer
JSJohn M. Stacy
John M. Stacy
ASAbe E. Sahmoun
Abe E. Sahmoun
JBJames R. Beal
James R. Beal
EDErdal Diri
Erdal Diri
Objective: Guidelines do not specify how cutoffs for high disease activity differ between the Disease Activity Score 28‐joint count indices DAS28–erythrocyte sedimentation rate (ESR) and DAS28–C‐reactive protein (CRP). Studies that compare DAS28‐CRP and DAS28‐ESR depend on data from clinical trials, registries, or practices with multiple providers. Existing studies use data from patients who received immunosuppressive therapy. This study compared the DAS28‐ESR and DAS28‐CRP values from immunosuppressive treatment–naïve patients in a single physician practice.Methods: A retrospective electronic medical chart review was conducted for new diagnoses of rheumatoid arthritis (RA; International Classification of Diseases [ICD]‐9 714), based on the American College of Rheumatology/European League against Rheumatology 2010 RA classification criteria. The number of patients with high disease activity (>5.1) was compared using ESR and CRP data to calculate the proportion of discordance. A receiver operator curve and Youden index was used to calculate the DAS28‐CRP high disease activity cutoff estimation that corresponds with DAS28‐ESR of more than 5.1.Results: There were 171 patients included in this study. The baseline mean DAS28‐ESR was higher than the baseline mean DAS‐28 CRP: 5.1 ± 1.2 versus 4.1 ± 1.0 (P < 0.001); 48.5% of patients met criteria for high disease activity (score >5.1) compared with only 14.6% when measured by DAS28‐CRP. Discordance was 33.9%. κ coefficient was only .307. Receiver operator curve and Youden index analysis suggested that the cutoff point for high disease activity of DAS28‐CRP greater than 4.1, which corresponds to DAS28‐ESR greater than 5.1. Similarly, DAS28‐ESR posttreatment scores were significantly higher than DAS28‐CRP. When measured by DAS28‐ESR, patients in remission had higher scores as measured by DAS28‐ESR (1.81) than DAS28‐CRP (1.45).Conclusion: There is a difference between DAS28‐ESR and DAS28‐CRP, even when calculated for immunosuppressive treatment–naïve patients. DAS28‐CRP is significantly lower than DAS28‐ESR.

15 March 2021 in Teaching and Learning in Medicine
Verified
Journal Article
Closed access
JGJacob Greenmyer
Jacob Greenmyer
MMMichelle Montgomery
Michelle Montgomery
CHCharles Hosford
Charles Hosford
MBMichael Burd
Michael Burd
VMVanessa Miller
Vanessa Miller
CTChristopher Tiongson
Christopher Tiongson
Burnout is prevalent among medical students and is correlated with negative feelings, behaviors, and outcomes. Empathy is a desired trait for medical students that has been correlated with reduced ...

11 October 2022 in Nutrients
Verified
Journal Article
Open access
PDF file
RBRegan Bradley
Regan Bradley
KLKoffi L. Lakpa
Koffi L. Lakpa
MBMichael Burd
Michael Burd
SMSunil Mehta
Sunil Mehta
MKMaja Z. Katusic
Maja Z. Katusic
JGJacob Greenmyer
Jacob Greenmyer
Prenatal alcohol exposure results in a spectrum of behavioral, cognitive, and morphological abnormalities collectively referred to as fetal alcohol spectrum disorder (FASD). FASD presents with significant phenotypic variability and may be modified by gestational variables such as maternal nutritional status. Iron serves a critical function in the development of and processes within central nervous system (CNS) structures. Gestational iron deficiency alters CNS development and may contribute to neurodevelopmental impairment in FASD. This review explores the relationship between iron deficiency and fetal alcohol spectrum disorder as described in small animal and human studies. Consideration is given to the pathophysiologic mechanisms linking iron homeostasis and prenatal alcohol exposure. Existing data suggest that iron deficiency contributes to the severity of FASD and provide a mechanistic explanation linking these two conditions.

16 January 2024 in Children
Verified
Journal Article
Open access
PDF file
LBLorel Breuer
Lorel Breuer
JGJacob Greenmyer
Jacob Greenmyer
TWTed Wilson
Ted Wilson
Fetal alcohol spectrum disorder (FASD) is commonly misdiagnosed because of the complexity of presentation and multiple diagnostic criteria. FASD includes four categorical entities (fetal alcohol syndrome, partial fetal alcohol syndrome, alcohol related neurodevelopmental disorder, and alcohol related birth defects). The four FASD diagnostic criteria are facial dysmorphology, growth deficiency, central nervous system dysfunction, and prenatal alcohol exposure. Sensory processing disorders (SPDs) are common in FASD and are observed as inappropriate behavioral responses to environmental stimuli. These can be either a sensory-based motor disorder, sensory discrimination disorder, or sensory modulation disorder. A child with SPD may experience challenges with their fine motor coordination, gross motor coordination, organizational challenges, or behavioral regulation impairments. FASD requires a multidimensional approach to intervention. Although FASD cannot be cured, symptoms can be managed with sleep-based therapies, sensory integration, and cognitive therapies. This paper reviews SPDs in FASD and the interventions that can be used by practitioners to help improve their therapeutic management, although it is unlikely that any single intervention will be the right choice for all patients.

31 January 2024 in Pediatric Blood & Cancer
Verified
Journal Article
Closed access
LKLincoln A. Kranz
Lincoln A. Kranz
WHWyatt S. Hahn
Wyatt S. Hahn
WTWhitney S. Thompson
Whitney S. Thompson
RHRoland Hentz
Roland Hentz
NKNathan L. Kobrinsky
Nathan L. Kobrinsky
JGJacob Greenmyer
Jacob Greenmyer