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Articles 31 - 48 of 48
Full-Text Articles in Medicine and Health Sciences
Thalamocortical Connectivity Correlates With Phenotypic Variability In Dystonia, An Vo, W. Sako, M. Niethammer, M. Carbon, S. B. Bressman, A. M. Ulug, D. Eidelberg
Thalamocortical Connectivity Correlates With Phenotypic Variability In Dystonia, An Vo, W. Sako, M. Niethammer, M. Carbon, S. B. Bressman, A. M. Ulug, D. Eidelberg
Journal Articles
Dystonia is a brain disorder characterized by abnormal involuntary movements without defining neuropathological changes. The disease is often inherited as an autosomal-dominant trait with incomplete penetrance. Individuals with dystonia, whether inherited or sporadic, exhibit striking phenotypic variability, with marked differences in the somatic distribution and severity of clinical manifestations. In the current study, we used magnetic resonance diffusion tensor imaging to identify microstructural changes associated with specific limb manifestations. Functional MRI was used to localize specific limb regions within the somatosensory cortex. Microstructural integrity was preserved when assessed in subrolandic white matter regions somatotopically related to the clinically involved limbs, …
Regional Brain Metabolism In A Murine Systemic Lupus Erythematosus Model, An Vo, B. T. Volpe, C. C. Tang, W. K. Schiffer, C. Kowal, P. T. Huerta, A. M. Ulug, S. L. Dewey, D. Eidelberg, B. Diamond
Regional Brain Metabolism In A Murine Systemic Lupus Erythematosus Model, An Vo, B. T. Volpe, C. C. Tang, W. K. Schiffer, C. Kowal, P. T. Huerta, A. M. Ulug, S. L. Dewey, D. Eidelberg, B. Diamond
Journal Articles
Systemic lupus erythematosus (SLE) is characterized by multiorgan inflammation, neuropsychiatric disorders (NPSLE), and antinuclear antibodies. We previously identified a subset of anti-DNA antibodies (DNRAb) cross-reactive with the N-methyl-D-aspartate receptor, present in 30% to 40% of patients, able to enhance excitatory post-synaptic potentials and trigger neuronal apoptosis. DNRAb + mice exhibit memory impairment or altered fear response, depending on whether the antibody penetrates the hippocampus or amygdala. Here, we used 18F-fluorodeoxyglucose (FDG) microPET to plot changes in brain metabolism after regional blood-brain barrier (BBB) breach. In DNRAb + mice, metabolism declined at the site of BBB breach in the first 2 …
Consistent Abnormalities In Metabolic Network Activity In Idiopathic Rapid Eye Movement Sleep Behaviour Disorder, P. Wu, H. Yu, S. C. Peng, Y. Dauvilliers, J. Wang, J. J. Ge, H. W. Zhang, D. Eidelberg, Y. L. Ma, C. T. Zuo
Consistent Abnormalities In Metabolic Network Activity In Idiopathic Rapid Eye Movement Sleep Behaviour Disorder, P. Wu, H. Yu, S. C. Peng, Y. Dauvilliers, J. Wang, J. J. Ge, H. W. Zhang, D. Eidelberg, Y. L. Ma, C. T. Zuo
Journal Articles
Rapid eye movement sleep behaviour disorder has been evaluated using Parkinson's disease-related metabolic network. It is unknown whether this disorder is itself associated with a unique metabolic network. F-18-fluorodeoxyglucose positron emission tomography was performed in 21 patients (age 65.0 +/- 5.6 years) with idiopathic rapid eye movement sleep behaviour disorder and 21 age/gender-matched healthy control subjects (age 62.5 +/- 7.5 years) to identify a disease-related pattern and examine its evolution in 21 hemi-parkinsonian patients (age 62.6 +/- 5.0 years) and 16 moderate parkinsonian patients (age 56.9 +/- 12.2 years). We identified a rapid eye movement sleep behaviour disorder-related metabolic network …
Internal Maxillary Artery-Middle Cerebral Artery Bypass: Infratemporal Approach For Subcranial-Intracranial (Sc-Ic) Bypass, E. Nossek, P. Costantino, M. Eisenberg, A. R. Dehdashti, A. Setton, D. J. Chalif, R. A. Ortiz, D. J. Langer
Internal Maxillary Artery-Middle Cerebral Artery Bypass: Infratemporal Approach For Subcranial-Intracranial (Sc-Ic) Bypass, E. Nossek, P. Costantino, M. Eisenberg, A. R. Dehdashti, A. Setton, D. J. Chalif, R. A. Ortiz, D. J. Langer
Journal Articles
BACKGROUND:Internal maxillary artery (IMax)-middle cerebral artery (MCA) bypass has been recently described as an alternative to cervical extracranial-intracranial bypass. This technique uses a keyhole craniectomy in the temporal fossa that requires a technically challenging end-to-side anastomosis.OBJECTIVE:To describe a lateral subtemporal craniectomy of the middle cranial fossa floor to facilitate wide exposure of the IMax to facilitate bypass.METHODS:Orbitozygomatic osteotomy is used followed by frontotemporal craniotomy and subsequently laterotemporal fossa craniectomy, reaching its medial border at a virtual line connecting the foramen rotundum and foramen ovale. The IMax was identified by using established anatomic landmarks, neuronavigation, and micro Doppler probe (Mizuho Inc. …
Intracellular Hmgb1 Inhibits Inflammatory Nucleosome Release And Limits Acute Pancreatitis In Mice, R. Kang, Q. Zhang, W. Hou, Z. Yan, R. Chen, J. Bonaroti, P. Bansal, T. R. Billiar, A. Tsung, Q. Wang, D. L. Bartlett, D. C. Whitcomb, E. B. Chang, X. Zhu, H. Wang, B. Lu, K. J. Tracey, L. Cao, X. G. Fan, M. T. Lotze, H. J., 3rd Zeh, D. Tang
Intracellular Hmgb1 Inhibits Inflammatory Nucleosome Release And Limits Acute Pancreatitis In Mice, R. Kang, Q. Zhang, W. Hou, Z. Yan, R. Chen, J. Bonaroti, P. Bansal, T. R. Billiar, A. Tsung, Q. Wang, D. L. Bartlett, D. C. Whitcomb, E. B. Chang, X. Zhu, H. Wang, B. Lu, K. J. Tracey, L. Cao, X. G. Fan, M. T. Lotze, H. J., 3rd Zeh, D. Tang
Journal Articles
BACKGROUND & AIMS: High mobility group box 1 (HMGB1) is an abundant protein that regulates chromosome architecture and also functions as a damage-associated molecular pattern molecule. Little is known about its intracellular roles in response to tissue injury or during subsequent local and systemic inflammatory responses. We investigated the function of Hmgb1 in mice after induction of acute pancreatitis. METHODS: We utilized a Cre/LoxP system to create mice with pancreas-specific disruption in Hmbg1 (Pdx1-Cre; HMGB1(flox/flox) mice). Acute pancreatitis was induced in these mice (HMGB1(flox/flox) mice served as controls) after injection of l-arginine or cerulein. Pancreatic tissues and acinar cells were …
Gene-Based Therapies In Parkinson's Disease, P. J. Allen, A. Feigin
Gene-Based Therapies In Parkinson's Disease, P. J. Allen, A. Feigin
Journal Articles
Parkinson's disease (PD) is a progressive neurological disorder characterized primarily by the degeneration of nigrostriatal dopaminergic neurons and diminution of the neurotransmitter dopamine. Though dopamine replacement therapies such as levodopa can improve the symptoms of PD, the benefits may be overshadowed by side effects and the onset of symptoms not responsive to dopaminergic treatments (e.g., autonomic symptoms, gait and balance problems, and cognitive impairment). Furthermore, no therapies have proven to slow the neurodegenerative process. Novel approaches to address these difficult problems, and others, are being sought. Over the last decade, several innovative gene therapies for PD have entered human clinical …
Clinical, Laboratory And Health-Related Quality Of Life Correlates Of Systemic Lupus Erythematosus Responder Index Response: A Post Hoc Analysis Of The Phase 3 Belimumab Trials, R. Furie, M. A. Petri, V. Strand, D. D. Gladman, Z. J. Zhong, W. W. Freimuth
Clinical, Laboratory And Health-Related Quality Of Life Correlates Of Systemic Lupus Erythematosus Responder Index Response: A Post Hoc Analysis Of The Phase 3 Belimumab Trials, R. Furie, M. A. Petri, V. Strand, D. D. Gladman, Z. J. Zhong, W. W. Freimuth
Journal Articles
OBJECTIVE: Correlates of systemic lupus erythematosus (SLE) Responder Index (SRI) response with clinical trial end points were examined using pooled data from the Study of Belimumab in Subjects with SLE (BLISS) trials (N=1684). METHODS: Changes in clinical, laboratory and health-related quality of life measures from baseline at 52 weeks were compared between SRI responders (n=761) and non-responders (n=923). RESULTS: More SRI responders than non-responders had >/=4-point (100% vs 3.8%) and >/=7-point (40.3% vs 1.3%) Safety of Estrogens in Lupus Erythematosus National Assessment-Systemic Lupus Erythematosus Disease Activity Index reductions, no new British Isles Lupus Assessment Group (BILAG) A and7.5 mg/d to7.5 …
Approaching The Next Revolution? Evolutionary Integration Of Neural And Immune Pathogen Sensing And Response, K. J. Tracey
Approaching The Next Revolution? Evolutionary Integration Of Neural And Immune Pathogen Sensing And Response, K. J. Tracey
Journal Articles
Mammalian immunity evolved by the process of natural selection that produced differential survival and reproduction advantages through combinations of hereditary traits underlying the response to pathogens. Primitive animals sense the presence of microbial pathogens through recognition of pathogen-derived molecules in their rudimentary immune and nervous systems. No molecular biological mechanism assigns primacy of pathogen sensing mechanisms to immune cells over neurons. Rather, in animals as diverse as Caenorhabditis elegans to mammals, neural reflexes are activated by the presence of pathogens and transduce neural mechanisms that control the development of immunity. A coming revolution in immunological thinking will require immunologists to …
Central Cholinergic Activation Of A Vagus Nerve-To-Spleen Circuit Alleviates Experimental Colitis, H. Ji, M. F. Rabbi, B. Labis, V. A. Pavlov, K. J. Tracey, J. E. Ghia
Central Cholinergic Activation Of A Vagus Nerve-To-Spleen Circuit Alleviates Experimental Colitis, H. Ji, M. F. Rabbi, B. Labis, V. A. Pavlov, K. J. Tracey, J. E. Ghia
Journal Articles
The cholinergic anti-inflammatory pathway is an efferent vagus nerve-based mechanism that regulates immune responses and cytokine production through alpha 7 nicotinic acetylcholine receptor (alpha 7nAChR) signaling. Decreased efferent vagus nerve activity is observed in inflammatory bowel disease. We determined whether central activation of this pathway alters inflammation in mice with colitis and the mediating role of a vagus nerve-to-spleen circuit and alpha 7nAChR signaling. Two experimental models of colitis were used in C57BL/6 mice. Central cholinergic activation induced by the acetylcholinesterase inhibitor galantamine or a muscarinic acetylcholine receptor agonist treatments resulted in reduced mucosal inflammation associated with decreased major histocompatibility …
High-Mobility Group Box 1 Protein Initiates Postoperative Cognitive Decline By Engaging Bone Marrow-Derived Macrophages, S. Vacas, V. Degos, K. J. Tracey, M. Maze
High-Mobility Group Box 1 Protein Initiates Postoperative Cognitive Decline By Engaging Bone Marrow-Derived Macrophages, S. Vacas, V. Degos, K. J. Tracey, M. Maze
Journal Articles
Background: Aseptic trauma engages the innate immune response to trigger a neuroinflammatory reaction that results in postoperative cognitive decline. The authors sought to determine whether high-mobility group box 1 protein (HMGB1), an ubiquitous nucleosomal protein, initiates this process through activation and trafficking of circulating bone marrow-derived macrophages to the brain. Methods: The effects of HMGB1 on memory (using trace fear conditioning) were tested in adult C57BL/6J male mice; separate cohorts were tested after bone marrow-derived macrophages were depleted by clodrolip. The effect of anti-HMGB1 neutralizing antibody on the inflammatory and behavioral responses to tibial surgery were investigated. Results: A single …
Lymphocyte Called Home: Beta2-Adreneric Neurotransmission Confines T Cells To Lymph Nodes To Suppress Inflammation, K J. Tracey
Lymphocyte Called Home: Beta2-Adreneric Neurotransmission Confines T Cells To Lymph Nodes To Suppress Inflammation, K J. Tracey
Journal Articles
No abstract provided.
Mapping Human Brain Networks With Cortico-Cortical Evoked Potentials, C. J. Keller, C. J. Honey, P. Megevand, L. Entz, I. Ulbert, A. D. Mehta
Mapping Human Brain Networks With Cortico-Cortical Evoked Potentials, C. J. Keller, C. J. Honey, P. Megevand, L. Entz, I. Ulbert, A. D. Mehta
Journal Articles
The cerebral cortex forms a sheet of neurons organized into a network of interconnected modules that is highly expanded in humans and presumably enables our most refined sensory and cognitive abilities. The links of this network form a fundamental aspect of its organization, and a great deal of research is focusing on understanding how information flows within and between different regions. However, an often-overlooked element of this connectivity regards a causal, hierarchical structure of regions, whereby certain nodes of the cortical network may exert greater influence over the others. While this is difficult to ascertain non-invasively, patients undergoing invasive electrode …
Nanocomposite Scaffold For Chondrocyte Growth And Cartilage Tissue Engineering: Effects Of Carbon Nanotube Surface Functionalization, N. O. Chahine, N. M. Collette, C. B. Thomas, D. C. Genetos, G. G. Loots
Nanocomposite Scaffold For Chondrocyte Growth And Cartilage Tissue Engineering: Effects Of Carbon Nanotube Surface Functionalization, N. O. Chahine, N. M. Collette, C. B. Thomas, D. C. Genetos, G. G. Loots
Journal Articles
The goal of this study was to assess the long-term biocompatibility of single-wall carbon nanotubes (SWNTs) for tissue engineering of articular cartilage. We hypothesized that SWNT nanocomposite scaffolds in cartilage tissue engineering can provide an improved molecular-sized substrate for stimulation of chondrocyte growth, as well as structural reinforcement of the scaffold's mechanical properties. The effect of SWNT surface functionalization (-COOH or -PEG) on chondrocyte viability and biochemical matrix deposition was examined in two-dimensional cultures, in three-dimensional (3D) pellet cultures, and in a 3D nanocomposite scaffold consisting of hydrogels + SWNTs. Outcome measures included cell viability, histological and SEM evaluation, GAG …
Targeting A Heterogeneous Tumor: The Promise Of The Interleukin-13 Receptor Alpha2, I. Bodhinayake, M. Ottenhausen, J. A. Boockvar
Targeting A Heterogeneous Tumor: The Promise Of The Interleukin-13 Receptor Alpha2, I. Bodhinayake, M. Ottenhausen, J. A. Boockvar
Journal Articles
No abstract provided.
Transcranial Magnetic Stimulation Across The Menstrual Cycle: What Do Hormones Have To Do With It?, C. L. Harden
Transcranial Magnetic Stimulation Across The Menstrual Cycle: What Do Hormones Have To Do With It?, C. L. Harden
Journal Articles
No abstract provided.
Medical Management With Or Without Interventional Therapy For Unruptured Brain Arteriovenous Malformations (Aruba): A Multicentre, Non-Blinded, Randomised Trial, J. P. Mohr, M. K. Parides, C. Stapf, E. Moquete, C. S. Moy, J. R. Overbey, R. A. S. Salman, E. Vicaut, R. Libman, Aruba Investigators Int, +12 Additional Authors
Medical Management With Or Without Interventional Therapy For Unruptured Brain Arteriovenous Malformations (Aruba): A Multicentre, Non-Blinded, Randomised Trial, J. P. Mohr, M. K. Parides, C. Stapf, E. Moquete, C. S. Moy, J. R. Overbey, R. A. S. Salman, E. Vicaut, R. Libman, Aruba Investigators Int, +12 Additional Authors
Journal Articles
Background The clinical benefit of preventive eradication of unruptured brain arteriovenous malformations remains uncertain. A Randomised trial of Unruptured Brain Arteriovenous malformations (ARUBA) aims to compare the risk of death and symptomatic stroke in patients with an unruptured brain arteriovenous malformation who are allocated to either medical management alone or medical management with interventional therapy. Methods Adult patients (>= 18 years) with an unruptured brain arteriovenous malformation were enrolled into this trial at 39 clinical sites in nine countries. Patients were randomised (by web-based system, in a 1: 1 ratio, with random permuted block design [block size 2, 4, …
Blood Levels Of S-100 Calcium-Binding Protein B, High-Sensitivity C-Reactive Protein, And Interleukin-6 For Changes In Depressive Symptom Severity After Coronary Artery Bypass Grafting: Prospective Cohort Nested Within A Randomized, Controlled Trial, Daniel M. Pearlman, Jeremiah R. Brown, Todd A. Mackenzie, Felix, Jr. Hernandez, Souhel Najjar
Blood Levels Of S-100 Calcium-Binding Protein B, High-Sensitivity C-Reactive Protein, And Interleukin-6 For Changes In Depressive Symptom Severity After Coronary Artery Bypass Grafting: Prospective Cohort Nested Within A Randomized, Controlled Trial, Daniel M. Pearlman, Jeremiah R. Brown, Todd A. Mackenzie, Felix, Jr. Hernandez, Souhel Najjar
Journal Articles
Background: Cross-sectional and retrospective studies have associated major depressive disorder with glial activation and injury as well as blood-brain barrier disruption, but these associations have not been assessed prospectively. Here, we aimed to determine the relationship between changes in depressive symptom severity and in blood levels of S-100 calcium-binding protein B (S-100B), high-sensitivity C-reactive protein, and interleukin-6 following an inflammatory challenge. Methods: Fifty unselected participants were recruited from a randomized, controlled trial comparing coronary artery bypass grafting procedures performed with versus without cardiopulmonary bypass for the risk of neurocognitive decline. Depressive symptom severity was measured at baseline, discharge, and six-month …
Sudden Unexpected Nocturnal Death In Chiari Type 1 Malformation And Potential Role Of Opioid Analgesics, F. Roohi, T. Gropen, R. W. Kula
Sudden Unexpected Nocturnal Death In Chiari Type 1 Malformation And Potential Role Of Opioid Analgesics, F. Roohi, T. Gropen, R. W. Kula
Journal Articles
BACKGROUND: Chiari malformation type 1 (CM1) is a common congenital anomaly of the craniocervical junction. CM1 is reported to run a usually benign course and patients typically experience no symptoms or chronic, slowly progressive symptoms. However, recent reports indicate that a subset of patients with CM1 may present with acute deterioration and sudden unexpected death (SUD). We report a case of SUD during sleep in a young man with CM1, which we believe was related to the administration of common and therapeutic doses of narcotic analgesics for the management of pain. We will clarify the pathophysiology of acute deterioration and …