Publications by authors named "Adam I Kaplin"

Article Synopsis
  • * Targeting an enzyme called glutamate carboxypeptidase II (GCPII) to boost NAAG levels is considered a potential treatment approach for Alzheimer's disease.
  • * Research findings reveal discrepancies between brain NAAG levels in humans and commonly used mouse models of Alzheimer's, questioning the reliability of these models for predicting human outcomes.
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  • The study examines how residency affects first-year medical interns in terms of sleep, physical activity, and mood over a six-month period using wearable devices for real-time data collection.
  • Results showed that interns lost nearly three hours of sleep per week after starting residency, while both mood and physical activity significantly declined.
  • A strong connection was found between sleep and mood, suggesting that lack of sleep negatively impacts mood more than mood affects sleep; changes in sleep timing also contributed to poorer sleep quality and mood.
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  • The study compares the Defense Automated Neurobehavioral Assessment (DANA), an electronic cognitive test, with the traditional Mini-Mental State Examination (MMSE) in patients undergoing electroconvulsive therapy for major depressive disorder.
  • It involved 17 inpatient subjects at Johns Hopkins Hospital, who took both tests repeatedly over time to monitor cognitive changes.
  • Results showed a strong relationship between DANA and MMSE scores, particularly when ignoring high MMSE scores, indicating that DANA is a more sensitive and valid tool for assessing cognition in this clinical setting.
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  • This study investigates how high-quality clinical encounters can help reduce depressive symptoms in young adults through effective communication between patients and providers.
  • Using Street's Model of Health Communication, the research examines the relationships between communication skills, patient activation, and depressive symptoms among 60 young adults.
  • Results show that better communication and self-appraisal lead to higher patient activation, which in turn significantly reduces depressive symptoms, suggesting new intervention targets for improving mental health in clinical settings.
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  • There are currently no effective treatments for cognitive impairment in multiple sclerosis (MS), but research in a mouse model (EAE) shows promise for a specific neuropeptidase inhibitor called 2-PMPA.
  • In this study, 2-PMPA was administered at various doses to determine its effectiveness in preventing cognitive decline without affecting physical symptoms, with 100 mg/kg proving most successful.
  • Further tests showed that starting treatment with 100 mg/kg of 2-PMPA after symptoms appeared led to significant improvements in cognitive performance, suggesting potential for this treatment in MS-related cognitive issues.
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  • * Results indicate that patients at hospitals with EMR show significantly lower readmission rates: 5.1% for 7-day readmissions at EMR facilities compared to 7% at those without, with similar trends for 14 and 30-day readmissions.
  • * The conclusion highlights that both storing psychiatric records electronically and providing access to non-psychiatric physicians is linked to better patient care outcomes, specifically reduced readmission rates for psychiatric patients.*
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  • Half of MS patients suffer from cognitive impairment without effective drugs to treat it.
  • A study found that lower levels of the brain metabolite NAAG in the hippocampus are linked to poor cognitive performance in these patients.
  • Testing GCPII inhibitors, which boost NAAG levels, showed significant improvements in learning and memory in mice with a model of MS, suggesting a potential new treatment avenue for cognitive issues in MS.
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  • The study aimed to examine the role of serotonergic transmission in HIV-associated depression using a specific imaging technique, [(11)C]DASB-PET, to look at serotonin transporter binding in different groups.
  • Nine depressed HIV+ subjects, nine non-depressed HIV+ subjects, and seven healthy controls underwent MRI and PET scans to measure serotonin transporter binding potential.
  • Results showed that HIV-ND had lower serotonin transporter binding values than healthy controls, while HIV-D had higher values than HIV-ND, suggesting alterations in serotonin levels linked to depression, but there was no clear relationship between illness duration and binding potential.
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This study was conducted to aid in the development of a multidisciplinary care center for patients with transverse myelitis. We surveyed the parents of 20 children diagnosed with transverse myelitis between the ages of 0.5 and 21 years to understand their experiences in navigating the health care system.

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Objective: To explore the safety and effectiveness of high-dose cyclophosphamide (HiCy) without bone marrow transplantation in patients with aggressive multiple sclerosis (MS).

Design: A 2-year open-label trial of patients with aggressive relapsing-remitting multiple sclerosis (RRMS) given an immunoablative regimen of HiCy (50 mg/kg/d for 4 consecutive days) with no subsequent immunomodulatory therapy unless disease activity reappeared that required rescue therapy.

Setting: The Johns Hopkins University Multiple Sclerosis Center, Baltimore, Maryland.

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CSF IL-6 is elevated in transverse myelitis (TM) and predicts disability. Since IL-17 regulates cytokines (TNFalpha, IL-1beta and IL-6) known to stimulate IL-6 production by astrocytes, we sought to determine whether IL-17 was increased in TM and MS compared to healthy controls (HC) and other neurologic diseases (OND). IL-17 and IL-6 levels were measured in stimulated peripheral blood mononuclear cell (PBMC) supernatants from HC, MS, TM and OND.

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Evidence suggests that depression in multiple sclerosis (MS) is largely biologically mediated by some of the same processes involved in the immunopathogenesis of this neurologic disease. In particular, the increase in proinflammatory cytokines, activation of the hypothalamic-pituitary-adrenal (HPA) axis, and reduction in neurotrophic factors that occur in MS may each account for the increased rate of depression seen in MS. The possible contributions of these neuroinflammatory, neuroendocrine, and neurotrophic mechanisms suggest a diverse array of novel treatment strategies for depression, both in the context of inflammatory conditions as well as in idiopathic depression.

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Transverse myelitis (TM) is a focal inflammatory disorder of the spinal cord. Perivascular monocytic and lymphocytic infiltration, demyelination, and axonal injury are prominent histopathogic features of TM. The clinical manifestations of TM are consequent to dysfunction of motor, sensory, and autonomic pathways.

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A great deal of interest has recently become focused on interactions between the nervous and the immune systems, including the potential for alterations in immune function to contribute to various psychiatric and neurologic disorders. Evidence suggests that cytokines may be involved in the development of depression. Immune-mediated mechanisms in the pathophysiology of some types of depression are reviewed from both clinical and animal studies and the difficulties inherent in studying the interplay of these two complex systems in the development of depression are described.

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Transverse myelitis (TM) is an immune-mediated spinal cord disorder associated with inflammation, demyelination, and axonal damage. We investigated the soluble immune derangements present in TM patients and found that IL-6 levels were selectively and dramatically elevated in the cerebrospinal fluid and directly correlated with markers of tissue injury and sustained clinical disability. IL-6 was necessary and sufficient to mediate cellular injury in spinal cord organotypic tissue culture sections through activation of the JAK/STAT pathway, resulting in increased activity of iNOS and poly(ADP-ribose) polymerase (PARP).

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The authors report the clinical course and immune system response of a patient with disease-associated recurrent transverse myelitis (TM) following cerebral infection with Brucellosis melitensis. The patient suffered four recurrences of his TM (each at a distinct spinal cord level) over the course of 2 years following his initial presentation, which ultimately progressed to quadriplegia. He had progressively declining cerebrospinal fluid (CSF) brucella antibody titers, suggesting a postinfectious, rather than an infectious, etiology.

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NADH regulates the release of calcium from the endoplasmic reticulum by modulation of inositol 1,4,5-trisphosphate receptors (IP3R), accounting for the augmented calcium release of hypoxic cells. We report selective binding of IP3R to GAPDH, whose activity leads to the local generation of NADH to regulate intracellular calcium signaling. This interaction requires cysteines 992 and 995 of IP3R and C150 of GAPDH.

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Background: Acute myelopathies represent a heterogeneous group of disorders with distinct etiologies, clinical and radiologic features, and prognoses. Transverse myelitis (TM) is a prototype member of this group in which an immune-mediated process causes neural injury to the spinal cord, resulting in varying degrees of weakness, sensory alterations, and autonomic dysfunction. TM may exist as part of a multifocal CNS disease (eg, MS), multisystemic disease (eg, systemic lupus erythematosus), or as an isolated, idiopathic entity.

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Carbon monoxide (CO) synthesized by heme oxygenase 2 (HO2) and nitric oxide (NO) produced by neuronal NO synthase (nNOS) mediate nonadrenergic/noncholinergic (NANC) intestinal relaxation. In many areas of the gastrointestinal tract, NO and CO function as coneurotransmitters. In the internal anal sphincter (IAS), NANC relaxation is mediated primarily by CO.

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Transverse Myelitis (TM) is a clinical syndrome in which an immune-mediated process causes neural injury to the spinal cord, resulting in varying degrees of weakness, sensory alterations and autonomic dysfunction. TM may exist as part of a multi-focal CNS disease (e.g.

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