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2017

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Articles 271 - 300 of 344

Full-Text Articles in Neurology

Open-Label Phase I Clinical Study To Assess The Safety And Efficacy Of Cilostazol In Patients Undergoing Internal Carotid Artery Stent Placement, A E. Hassan, H Zacharatos, M Grigoryan, Muhammed Suri, Adnan Qureshi Mar 2017

Open-Label Phase I Clinical Study To Assess The Safety And Efficacy Of Cilostazol In Patients Undergoing Internal Carotid Artery Stent Placement, A E. Hassan, H Zacharatos, M Grigoryan, Muhammed Suri, Adnan Qureshi

Articles

BACKGROUND:

One-month dual antiplatelet treatment, with aspirin and clopidogrel, following internal carotid artery stent placement is the current standard of care to prevent in-stent thrombosis. Cilostazol, an antiplatelet drug, has been demonstrated to have a safety profile comparable to aspirin and clopidogrel.

OBJECTIVE:

To evaluate the safety and clinical efficacy of cilostazol and aspirin therapy following internal carotid artery stent placement up to 1 month postprocedure.

METHODS:

A phase I open-label, nonrandomized two-center prospective study was conducted. All subjects received aspirin (325 mg/day) and cilostazol (200 mg/day) 3 days before extracranial stent placement. Two antiplatelet agents were continued for 1 …


High Resolution Time-Course Mapping Of Early Transcriptomic, Molecular And Cellular Phenotypes In Huntington's Disease Cag Knock-In Mice Across Multiple Genetic Backgrounds., Seth A Ament, Jocelynn R Pearl, Andrea Grindeland, Jason St Claire, John C Earls, Marina Kovalenko, Tammy Gillis, Jayalakshmi Mysore, James F Gusella, Jong-Min Lee, Seung Kwak, David Howland, Min Young Lee, David Baxter, Kelsey Scherler, Kai Wang, Donald Geman, Jeffrey B Carroll, Marcy E Macdonald, George Carlson, Vanessa C Wheeler, Nathan D Price, Leroy Hood Mar 2017

High Resolution Time-Course Mapping Of Early Transcriptomic, Molecular And Cellular Phenotypes In Huntington's Disease Cag Knock-In Mice Across Multiple Genetic Backgrounds., Seth A Ament, Jocelynn R Pearl, Andrea Grindeland, Jason St Claire, John C Earls, Marina Kovalenko, Tammy Gillis, Jayalakshmi Mysore, James F Gusella, Jong-Min Lee, Seung Kwak, David Howland, Min Young Lee, David Baxter, Kelsey Scherler, Kai Wang, Donald Geman, Jeffrey B Carroll, Marcy E Macdonald, George Carlson, Vanessa C Wheeler, Nathan D Price, Leroy Hood

Articles, Abstracts, and Reports

Huntington's disease is a dominantly inherited neurodegenerative disease caused by the expansion of a CAG repeat in the HTT gene. In addition to the length of the CAG expansion, factors such as genetic background have been shown to contribute to the age at onset of neurological symptoms. A central challenge in understanding the disease progression that leads from the HD mutation to massive cell death in the striatum is the ability to characterize the subtle and early functional consequences of the CAG expansion longitudinally. We used dense time course sampling between 4 and 20 postnatal weeks to characterize early transcriptomic, …


A Case Of Hashimoto’S Encephalopathy In A Patient With Lithium Toxicity, Saba Zaidi, Bashir A. Soomro, Dr Imran Chaudary, Fasiha Sohail Mar 2017

A Case Of Hashimoto’S Encephalopathy In A Patient With Lithium Toxicity, Saba Zaidi, Bashir A. Soomro, Dr Imran Chaudary, Fasiha Sohail

Pakistan Journal of Neurological Sciences (PJNS)

Hashimoto’s encephalopathy is a rare neurological disorder of unknown etiology. We presented, a case of middle aged male with bipolar disorder on Lithium carbonate for 30 years, admitted with altered behavior for 2 weeks and high Lithium levels. He was admitted with the suspicion of Lithium toxicity. EEG showed generalized epileptiform discharges. MRI brain revealed frontal cortical atrophy. CSF detailed report was normal. Further workup showed a high TSH level and positive anti-TPO (anti thyroid peroxidase) antibodies. Based on clinical picture, raised antibodies and no discernible cause, diagnosis of probable Hashimoto’s encephalopathy was made. He received pulse of methylprednisolone for …


Role Of Neuroradiology In Predicting Outome In Spontaneous Intracerebral Hemorrhage, Sumaira Nabi, Mazhar Badshah, Shahzad Ahmed, Ali Zohair Nomani Mar 2017

Role Of Neuroradiology In Predicting Outome In Spontaneous Intracerebral Hemorrhage, Sumaira Nabi, Mazhar Badshah, Shahzad Ahmed, Ali Zohair Nomani

Pakistan Journal of Neurological Sciences (PJNS)

Spontaneous intracerebral hemorrhage (ICH) accounts for 8-13% of all strokes and is associated with a high mortality and morbidity. Western studies have identified various clinical and radiological factors which help in predicting outcome in patients with spontaneous ICH. Materials and methods: A consecutive series of 100 patients diagnosed with spontaneous ICH admitted to the neurology department were enrolled from 1stJanuary to 30th June, 2014.Radiological parameters on CT brain (plain) were recorded. In-hospital outcome was measured at the end of 7 days of hospital stay in terms of survival or mortality. Different radiological parameters and their effect on outcome were compared …


Frequency Of Miller Fisher Variant Of Guillain Barré Syndrome At A Tertiary Care Hospital, Karachi, Kiran Waqar, Sadaf Nasir, Khalid Sher, Meraj Fatima, Abdul Malik Mar 2017

Frequency Of Miller Fisher Variant Of Guillain Barré Syndrome At A Tertiary Care Hospital, Karachi, Kiran Waqar, Sadaf Nasir, Khalid Sher, Meraj Fatima, Abdul Malik

Pakistan Journal of Neurological Sciences (PJNS)

Miller fisher syndrome is generally considered a rare but important variant of Guillain Barré Syndrome (GBS) having geographically variable incidence. Patients with this clinical syndrome are often misdiagnosed and mismanaged due to lack of awareness on the part of physician. Objective: To determine frequency of Miller fisher syndrome (MFS), variant of GBS in patients presenting to a tertiary care hospital in Karachi. Methods: This descriptive cross sectional study was conducted in the Department of Neurology, Jinnah Postgraduate Medical Centre (JPMC), Karachi. The duration was from April, 2014 to April, 2016 (two years). A total of 100 patients were included in …


Transcranial Direct Current Stimulation And Stroke Recovery: Opportunities And Challenges, Murtaza G, Hussain F, Iqbal M, Shahid Bashir Mar 2017

Transcranial Direct Current Stimulation And Stroke Recovery: Opportunities And Challenges, Murtaza G, Hussain F, Iqbal M, Shahid Bashir

Pakistan Journal of Neurological Sciences (PJNS)

Transcranial direct current stimulation (tDCS) is one type of neuromodulation, which is an emerging technology that holds promise for the future studies on therapeutic and diagnosis applications in treatment of neurological and psychiatric diseases. However, there is a serious question among developing countries with limited financial and human resources, about the potential returns of an investment in this field and regarding the best time to transfer this technology from controlled experimental settings to health systems in the public and private sectors. This article reviews the tDCS as tools of neuromodulation for stroke and discusses the opportunities and challenges available for …


Spectrum Of Gullian Barre Syndrome In Children, Dr. Shaila Ali, Dr. M. Zia Ur Rehman, Dr. Tipu Sultan Mar 2017

Spectrum Of Gullian Barre Syndrome In Children, Dr. Shaila Ali, Dr. M. Zia Ur Rehman, Dr. Tipu Sultan

Pakistan Journal of Neurological Sciences (PJNS)

GBS is a post-infectious poly-neuropathy involving mainly motor but sometimes also sensory and autonomic nerves. This is an epidemiological report on seasonal & monthly distribution of GBS & differences in GBS incidence between male & female in Punjab, Pakistan. Objective: To determine the seasonal variation, age and gender differentiation in children with GBS along with EMG/NCS findings. Study Design: Retrospective, observational,cross sectional study. Place and duration of study: Department of Neurology, Childrens Hospital & The Institute of Child Health, Lahore from January 2014 to December 2014. METHODS: We extracted data from multi centers retrospectively in a 1 year period (January …


A Giant Right Subclavian- Axillary Artery Aneurysm Presenting As Brachial Plexopathy, Mahnoor Hafeez,, Ateeque Ahmed Khan Mar 2017

A Giant Right Subclavian- Axillary Artery Aneurysm Presenting As Brachial Plexopathy, Mahnoor Hafeez,, Ateeque Ahmed Khan

Pakistan Journal of Neurological Sciences (PJNS)

We present a rare case of 60 years old lady with diabetes and uncontrolled systemic hypertension, who was referred to the Surgical Department of Civil Hospital Karachi in September 2016 with rapidly progressive mass at right shoulder region and acute onset of ipsilateral limb sensory and motor deficit for last 3 weeks. The nerve conduction studies (NCS) revealed right brachial plexopathy. Computed Tomography demonstrated an 8.2x8.7cm (width x length) fusiform giant aneurysm of right subclavian-axillary artery with reactive axillary lymphadenitis. Early Aneurysmectomy and arterial reconstruction with saphenous vein graft interposition was planned. Unfortunately, she succumbed to death due to spontaneous …


Intracranial Hypertension And Optic Nerve Sheath Fenestration, Irfan Jeeva Mar 2017

Intracranial Hypertension And Optic Nerve Sheath Fenestration, Irfan Jeeva

Pakistan Journal of Neurological Sciences (PJNS)

Intracranial Hypertension is a neurological condition secondary to raised intracranial pressure in the absence of identifiable intracranial pathology and with normal cerebrospinal fluid composition. It can be a challenging condition to manage. One of the treatment modalities, optic nerve sheath fenestration is an important, yet under utilized mode of treatment, particularly in patients with visual symptoms.


Central Nervous System Tuberculosis In Children, Tipu Sultan Mar 2017

Central Nervous System Tuberculosis In Children, Tipu Sultan

Pakistan Journal of Neurological Sciences (PJNS)

Brain and spinal cord tuberculosis are one of the commonest neurological infection in developing countries. Its associated with high morbidity and mortality. Diagnosis is based on clinical features, cerebrospinal fluid and brain imaging. Combination of antituberculous drugs should be started as early as possible to prevent the complications. The patient's clinical stage at presentation is the most important prognostic factor. Surgical procedures are directed at management of the hydrocephalus. Focal lesions, intracranial tuberculomas, and tuberculous abscesses, are usually located in cerebral or cerebellar hemispheres, uncommonly in brainstem and very rarely in spinal cord. They do not usually require surgical intervention …


Efficacy And Tolerability Of Adjunctive Brivaracetam In Patients With Prior Antiepileptic Drug Exposure: A Post-Hoc Study., Ali A. Asadi-Pooya, Michael R. Sperling, Steve Chung, Pavel Klein, Anyzeila Diaz, Sami Elmoufti, Jimmy Schiemann, John Whitesides Mar 2017

Efficacy And Tolerability Of Adjunctive Brivaracetam In Patients With Prior Antiepileptic Drug Exposure: A Post-Hoc Study., Ali A. Asadi-Pooya, Michael R. Sperling, Steve Chung, Pavel Klein, Anyzeila Diaz, Sami Elmoufti, Jimmy Schiemann, John Whitesides

Department of Neurology Faculty Papers

Brivaracetam (BRV), a selective, high-affinity ligand for synaptic vesicle protein 2A, is a new antiepileptic drug (AED) for adjunctive treatment of focal (partial-onset) seizures in adults with epilepsy. This post-hoc analysis was conducted to explore the efficacy of adjunctive BRV in patients with prior levetiracetam (LEV) exposure and whether changes in efficacy were related to the similar mechanism of action of these two drugs. Data were pooled from three Phase III studies (NCT00490035; NCT00464269; NCT01261325) of adults with focal seizures taking 1-2 AEDs who received placebo or BRV 50-200mg/day without titration over a 12-week treatment period. Patients taking concomitant LEV …


Embryonic Transcription Factor Expression In Mice Predicts Medial Amygdala Neuronal Identity And Sex-Specific Responses To Innate Behavioral Cues., Julieta E Lischinsky, Katie Sokolowski, Li Peijun, Shigeyuki Esumi, Yasmin Kamal, Meredith Goodrich, Livio Oboti, Timothy R Hammond, Meera Krishnamoorthy, Daniel Feldman, Molly Huntsman, Judy Liu, Joshua G Corbin Feb 2017

Embryonic Transcription Factor Expression In Mice Predicts Medial Amygdala Neuronal Identity And Sex-Specific Responses To Innate Behavioral Cues., Julieta E Lischinsky, Katie Sokolowski, Li Peijun, Shigeyuki Esumi, Yasmin Kamal, Meredith Goodrich, Livio Oboti, Timothy R Hammond, Meera Krishnamoorthy, Daniel Feldman, Molly Huntsman, Judy Liu, Joshua G Corbin

Pediatrics Faculty Publications

The medial subnucleus of the amygdala (MeA) plays a central role in processing sensory cues required for innate behaviors. However, whether there is a link between developmental programs and the emergence of inborn behaviors remains unknown. Our previous studies revealed that the telencephalic preoptic area (POA) embryonic niche is a novel source of MeA destined progenitors. Here, we show that the POA is comprised of distinct progenitor pools complementarily marked by the transcription factors Dbx1 and Foxp2. As determined by molecular and electrophysiological criteria this embryonic parcellation predicts postnatal MeA inhibitory neuronal subtype identity. We further find that Dbx1-derived and …


High-Dose Immunosuppressive Therapy And Autologous Hct For Relapsing-Remitting Ms., Richard A Nash, George J Hutton, Michael K Racke, Uday Popat, Steven M Devine, Kaitlyn C Steinmiller, Linda M Griffith, Paolo A Muraro, Harry Openshaw, Peter H Sayre, Olaf Stuve, Douglas L Arnold, Mark H Wener, George E Georges, Annette Wundes, George H Kraft, J D Bowen Feb 2017

High-Dose Immunosuppressive Therapy And Autologous Hct For Relapsing-Remitting Ms., Richard A Nash, George J Hutton, Michael K Racke, Uday Popat, Steven M Devine, Kaitlyn C Steinmiller, Linda M Griffith, Paolo A Muraro, Harry Openshaw, Peter H Sayre, Olaf Stuve, Douglas L Arnold, Mark H Wener, George E Georges, Annette Wundes, George H Kraft, J D Bowen

Articles, Abstracts, and Reports

OBJECTIVE: To evaluate the safety, efficacy, and durability of multiple sclerosis (MS) disease stabilization after high-dose immunosuppressive therapy (HDIT) and autologous hematopoietic cell transplantation (HCT).

METHODS: High-Dose Immunosuppression and Autologous Transplantation for Multiple Sclerosis (HALT-MS) is a phase II clinical trial of HDIT/HCT for patients with relapsing-remitting (RR) MS who experienced relapses with disability progression (Expanded Disability Status Scale [EDSS] 3.0-5.5) while on MS disease-modifying therapy. The primary endpoint was event-free survival (EFS), defined as survival without death or disease activity from any one of: disability progression, relapse, or new lesions on MRI. Participants were evaluated through 5 years posttransplant. …


Preventive Gabapentin Versus Pregabalin To Decrease Postoperative Pain After Lumbar Microdiscectomy: A Randomized Controlled Trial, Mohsin Qadeer, Muhammad Waqas, Muhammad Jawad Rashid, Ather Enam, Salman Sharif, Ghulam Murtaza Feb 2017

Preventive Gabapentin Versus Pregabalin To Decrease Postoperative Pain After Lumbar Microdiscectomy: A Randomized Controlled Trial, Mohsin Qadeer, Muhammad Waqas, Muhammad Jawad Rashid, Ather Enam, Salman Sharif, Ghulam Murtaza

Section of Neurosurgery

Study design: Randomized controlled trial.
Purpose: The purpose of this study was to compare pregabalin and gabapentin for mean postoperative visual analog score (VAS) for pain in patients undergoing single-level lumbar microdiscectomy for intervertebral disc prolapse at a tertiary care hospital.
Overview of literature: Pregabalin has a superior pharmacokinetic profile and analgesic effect at lower doses than gabapentin; however, analgesic efficacy must be established during the perioperative period after lumbar spine surgery.
Methods: This randomized controlled trial was carried out at our institute from February to October 2011 on 78 patients, with 39 participants in each study group. Patients undergoing …


Motivational, Proteostatic And Transcriptional Deficits Precede Synapse Loss, Gliosis And Neurodegeneration In The B6.Htt, Robert M Bragg, Sydney R Coffey, Rory M Weston, Seth A Ament, Jeffrey P Cantle, Shawn Minnig, Cory C Funk, Dominic D Shuttleworth, Emily L Woods, Bonnie R Sullivan, Lindsey Jones, Anne Glickenhaus, John S Anderson, Michael D Anderson, Stephen B Dunnett, Vanessa C Wheeler, Marcy E Macdonald, Simon P Brooks, Nathan D Price, Jeffrey B Carroll Feb 2017

Motivational, Proteostatic And Transcriptional Deficits Precede Synapse Loss, Gliosis And Neurodegeneration In The B6.Htt, Robert M Bragg, Sydney R Coffey, Rory M Weston, Seth A Ament, Jeffrey P Cantle, Shawn Minnig, Cory C Funk, Dominic D Shuttleworth, Emily L Woods, Bonnie R Sullivan, Lindsey Jones, Anne Glickenhaus, John S Anderson, Michael D Anderson, Stephen B Dunnett, Vanessa C Wheeler, Marcy E Macdonald, Simon P Brooks, Nathan D Price, Jeffrey B Carroll

Articles, Abstracts, and Reports

We investigated the appearance and progression of disease-relevant signs in the B6.HttQ111/+ mouse, a genetically precise model of the mutation that causes Huntington's disease (HD). We find that B6.HttQ111/+ mice are healthy, show no overt signs of central or peripheral inflammation, and no gross motor impairment as late as 12 months of age. Behaviorally, we find that 4-9 month old B6.HttQ111/+ mice have normal activity levels and show no clear signs of anxiety or depression, but do show clear signs of reduced motivation. The neuronal density, neuronal size, synaptic density and number of glia is normal in B6.HttQ111/+ striatum, the …


Frequent Mild Head Injury Promotes Trigeminal Sensitivity Concomitant With Microglial Proliferation, Astrocytosis, And Increased Neuropeptide Levels In The Trigeminal Pain System., Ashley L. Tyburski, Lan Cheng, Soroush Assari, Kurosh Darvish, Melanie B Elliott Feb 2017

Frequent Mild Head Injury Promotes Trigeminal Sensitivity Concomitant With Microglial Proliferation, Astrocytosis, And Increased Neuropeptide Levels In The Trigeminal Pain System., Ashley L. Tyburski, Lan Cheng, Soroush Assari, Kurosh Darvish, Melanie B Elliott

Department of Neurosurgery Faculty Papers

BACKGROUND: Frequent mild head injuries or concussion along with the presence of headache may contribute to the persistence of concussion symptoms.

METHODS: In this study, the acute effects of recovery between mild head injuries and the frequency of injuries on a headache behavior, trigeminal allodynia, was assessed using von Frey testing up to one week after injury, while histopathological changes in the trigeminal pain pathway were evaluated using western blot, ELISA and immunohistochemistry. RESULTS: A decreased recovery time combined with an increased mild closed head injury (CHI) frequency results in reduced trigeminal allodynia thresholds compared to controls. The repetitive CHI …


Pediatric High-Grade Glioma: Biologically And Clinically In Need Of New Thinking., Chris Jones, Matthias A Karajannis, David T W Jones, Mark W Kieran, Michelle Monje, Suzanne J Baker, Roger J Packer, +Several Additional Authors Feb 2017

Pediatric High-Grade Glioma: Biologically And Clinically In Need Of New Thinking., Chris Jones, Matthias A Karajannis, David T W Jones, Mark W Kieran, Michelle Monje, Suzanne J Baker, Roger J Packer, +Several Additional Authors

Neurology Faculty Publications

High-grade gliomas in children are different from those that arise in adults. Recent collaborative molecular analyses of these rare cancers have revealed previously unappreciated connections among chromatin regulation, developmental signaling, and tumorigenesis. As we begin to unravel the unique developmental origins and distinct biological drivers of this heterogeneous group of tumors, clinical trials need to keep pace. It is important to avoid therapeutic strategies developed purely using data obtained from studies on adult glioblastoma. This approach has resulted in repetitive trials and ineffective treatments being applied to these children, with limited improvement in clinical outcome. The authors of this perspective, …


Correcting The Trajectory Of Stroke Therapeutic Research, Keith R. Pennypacker, Gregory J. Bix, Justin F. Fraser Feb 2017

Correcting The Trajectory Of Stroke Therapeutic Research, Keith R. Pennypacker, Gregory J. Bix, Justin F. Fraser

Neurology Faculty Publications

No abstract provided.


Editorial., Jeffrey C Wang, Jens R Chapman, Karsten Wiechert Feb 2017

Editorial., Jeffrey C Wang, Jens R Chapman, Karsten Wiechert

Articles, Abstracts, and Reports

No abstract provided.


Use Of The Ketogenic Diet In The Neonatal Intensive Care Unit-Safety And Tolerability., Lindsey M. Thompson, Erin Day Fecske, Mohammad Salim, Ara Hall Feb 2017

Use Of The Ketogenic Diet In The Neonatal Intensive Care Unit-Safety And Tolerability., Lindsey M. Thompson, Erin Day Fecske, Mohammad Salim, Ara Hall

Manuscripts, Articles, Book Chapters and Other Papers

Drug-resistant epilepsy poses a challenge in neonatal patients, especially those in the neonatal intensive care unit (NICU), who have various secondary comorbidities. We present results of four children with a history of drug-resistant epilepsy for whom a ketogenic diet was initiated and used in the NICU. A nonfasting induction into ketosis over 1-2 weeks was utilized, with gradual increases in the ketogenic ratio every 2-3 days. Data were collected retrospectively from a database, which included medical history, daily progress notes, relevant laboratory data, and imaging and diagnostic information. The ketogenic diet was well tolerated in all cases. The most common …


Fsd-C10, A Fasudil Derivative, Promotes Neuroregeneration Through Indirect And Direct Mechanisms., Yan-Hua Li, Chong Xie, Yuan Zhang, Xing Li, Hai-Fei Zhang, Qing Wang, Zhi Chai, Bao-Guo Xiao, Rodolfo Thome, Guang-Xian Zhang, Cun-Gen Ma Jan 2017

Fsd-C10, A Fasudil Derivative, Promotes Neuroregeneration Through Indirect And Direct Mechanisms., Yan-Hua Li, Chong Xie, Yuan Zhang, Xing Li, Hai-Fei Zhang, Qing Wang, Zhi Chai, Bao-Guo Xiao, Rodolfo Thome, Guang-Xian Zhang, Cun-Gen Ma

Department of Neurology Faculty Papers

FSD-C10, a Fasudil derivative, was shown to reduce severity of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS), through the modulation of the immune response and induction of neuroprotective molecules in the central nervous system (CNS). However, whether FSD-C10 can promote neuroregeneration remains unknown. In this study, we further analyzed the effect of FSD-C10 on neuroprotection and remyelination. FSD-C10-treated mice showed a longer, thicker and more intense MAP2 and synaptophysin positive signal in the CNS, with significantly fewer CD4(+) T cells, macrophages and microglia. Importantly, the CNS of FSD-C10-treated mice showed a shift of activated macrophages/microglia from …


The Dens: A Review Of Its Diverse Nomenclature And A Recommended Simplified Terminology., Jaspreet Johal, Christian Fisahn, Brittni Burgess, Marios Loukas, Jens Chapman, Rod J Oskouian, R Shane Tubbs Jan 2017

The Dens: A Review Of Its Diverse Nomenclature And A Recommended Simplified Terminology., Jaspreet Johal, Christian Fisahn, Brittni Burgess, Marios Loukas, Jens Chapman, Rod J Oskouian, R Shane Tubbs

Articles, Abstracts, and Reports

Pathology of the dens, such as fractures, demands precise terminology so that communication between physicians are succinct, diagnoses are accurate, and treatment strategies exact. This review aims to summarize the various terms used to describe the parts of the dens and recommend the ideal terminology. Using standard search engines, English language publications were searched for the many terms used to describe parts of the dens. A multitude of terms was identified with many demonstrating overlaps. Terms identified included apex, tip, apicodental, subdental, dentocentral and odontocentral junctions, peg, waist, base, neck, shaft, shoulder, and stem. Exact terminology is necessary when diagnosing …


Persistent Amygdala Novelty Response Is Associated With Less Anterior Cingulum Integrity In Trauma-Exposed Women, Seungyeon A. Yoon, Mariann R. Weierich Jan 2017

Persistent Amygdala Novelty Response Is Associated With Less Anterior Cingulum Integrity In Trauma-Exposed Women, Seungyeon A. Yoon, Mariann R. Weierich

Publications and Research

Objectives: We investigated the potential role of cingulum and uncinate fasciculus integrity in trauma-related neural hypervigilance, indexed by less discrimination between amygdala activation to novel and familiar affective images.

Participants: 22 women (mean age 21.7 ± 3.9 years) with a history of trauma, and 20 no-trauma controls (mean age 21.9 ± 4.8 years).

Measures: Trauma exposure and trauma-related symptoms were assessed during structured clinical interview. White matter integrity in the anterior cingulum, parahippocampal cingulum, and uncinate fasciculus was measured using diffusion weighted imaging. Amygdala response to novel and familiar affective scenes was measured with functional magnetic resonance imaging.

Results: Trauma-exposed …


Regulation Of Sleep Plasticity By A Thermo-Sensitive Circuit In Drosophila., Angelique Lamaze, Arzu Öztürk-Çolak, Robin Fischer, Nicolai Peschel, Kyunghee Koh, James E.C. Jepson Jan 2017

Regulation Of Sleep Plasticity By A Thermo-Sensitive Circuit In Drosophila., Angelique Lamaze, Arzu Öztürk-Çolak, Robin Fischer, Nicolai Peschel, Kyunghee Koh, James E.C. Jepson

Department of Neuroscience Faculty Papers

Sleep is a highly conserved and essential behaviour in many species, including the fruit fly Drosophila melanogaster. In the wild, sensory signalling encoding environmental information must be integrated with sleep drive to ensure that sleep is not initiated during detrimental conditions. However, the molecular and circuit mechanisms by which sleep timing is modulated by the environment are unclear. Here we introduce a novel behavioural paradigm to study this issue. We show that in male fruit flies, onset of the daytime siesta is delayed by ambient temperatures above 29 °C. We term this effect Prolonged Morning Wakefulness (PMW). We show that …


Longitudinal Measurement And Hierarchical Classification Framework For The Prediction Of Alzheimer's Disease, Meiyan Huang, Wei Yang, Qianjin Feng, Wufan Chen, Michael Weiner, Paul Aisen, Ronald Petersen, Clifford R. Jack Jr., William Jagust, John Trojanowki, Arthur W. Toga, Laurel Beckett, Robert C. Green, Andrew Saykin, John Morris, Leslie M. Shaw, Jeffrey Kaye, Joseph Quinn, Lisa Silbert, Betty Lind, Raina Carter, Sara Dolen, Lon S. Schneider, Sonia Pawluczyk, Mauricio Beccera, Liberty Teodoro, Bryan Spann, James Brewer, Helen Vanderswag, Adam Fleisher, Charles D. Smith, Greg A. Jicha, Peter A. Hardy, Partha Sinha, Elizabeth Oates, Gary Conrad Jan 2017

Longitudinal Measurement And Hierarchical Classification Framework For The Prediction Of Alzheimer's Disease, Meiyan Huang, Wei Yang, Qianjin Feng, Wufan Chen, Michael Weiner, Paul Aisen, Ronald Petersen, Clifford R. Jack Jr., William Jagust, John Trojanowki, Arthur W. Toga, Laurel Beckett, Robert C. Green, Andrew Saykin, John Morris, Leslie M. Shaw, Jeffrey Kaye, Joseph Quinn, Lisa Silbert, Betty Lind, Raina Carter, Sara Dolen, Lon S. Schneider, Sonia Pawluczyk, Mauricio Beccera, Liberty Teodoro, Bryan Spann, James Brewer, Helen Vanderswag, Adam Fleisher, Charles D. Smith, Greg A. Jicha, Peter A. Hardy, Partha Sinha, Elizabeth Oates, Gary Conrad

Neurology Faculty Publications

Accurate prediction of Alzheimer’s disease (AD) is important for the early diagnosis and treatment of this condition. Mild cognitive impairment (MCI) is an early stage of AD. Therefore, patients with MCI who are at high risk of fully developing AD should be identified to accurately predict AD. However, the relationship between brain images and AD is difficult to construct because of the complex characteristics of neuroimaging data. To address this problem, we present a longitudinal measurement of MCI brain images and a hierarchical classification method for AD prediction. Longitudinal images obtained from individuals with MCI were investigated to acquire important …


Cerebellar Tdcs: A Novel Approach To Augment Language Treatment Post-Stroke, Rajani Sebastian, Sadhvi Saxena, Kyrana Tsapkini, Andreia V. Faria, Charltien Long, Amy Wright, Cameron Davis, Donna C. Tippett, Antonios P. Mourdoukoutas, Marom Bikson, Pablo Celnik, Argye E. Hillis Jan 2017

Cerebellar Tdcs: A Novel Approach To Augment Language Treatment Post-Stroke, Rajani Sebastian, Sadhvi Saxena, Kyrana Tsapkini, Andreia V. Faria, Charltien Long, Amy Wright, Cameron Davis, Donna C. Tippett, Antonios P. Mourdoukoutas, Marom Bikson, Pablo Celnik, Argye E. Hillis

Publications and Research

People with post-stroke aphasia may have some degree of chronic deficit for which current rehabilitative treatments are variably effective. Accumulating evidence suggests that transcranial direct current stimulation (tDCS) may be useful for enhancing the effects of behavioral aphasia treatment. However, it remains unclear which brain regions should be stimulated to optimize effects on language recovery. Here, we report on the therapeutic potential of right cerebellar tDCS in augmenting language recovery in SMY, who sustained bilateral MCA infarct resulting in aphasia and anarthria. We investigated the effects of 15 sessions of anodal cerebellar tDCS coupled with spelling therapy using a randomized, …


Updating Temporal Expectancy Of An Aversive Event Engages Striatal Plasticity Under Amygdala Control, Glenn Dallérac, Michael Graupner, Jeroen Knippenberg, Raquel Chacon Ruiz Martinez, Tatiane Ferreira Tavares, Lucille Tallot, Nicole El Massioui, Anna Verschueren, Sophie Höhn, Julie Boulanger Bertolus, Alex D. Reyes, Joseph E. Ledoux, Glenn E. Schafe, Lorenzo Diaz-Mataix, Valérie Doyère Jan 2017

Updating Temporal Expectancy Of An Aversive Event Engages Striatal Plasticity Under Amygdala Control, Glenn Dallérac, Michael Graupner, Jeroen Knippenberg, Raquel Chacon Ruiz Martinez, Tatiane Ferreira Tavares, Lucille Tallot, Nicole El Massioui, Anna Verschueren, Sophie Höhn, Julie Boulanger Bertolus, Alex D. Reyes, Joseph E. Ledoux, Glenn E. Schafe, Lorenzo Diaz-Mataix, Valérie Doyère

Publications and Research

Pavlovian aversive conditioning requires learning of the association between a conditioned stimulus (CS) and an unconditioned, aversive stimulus (US) but also involves encoding the time interval between the two stimuli. The neurobiological bases of this time interval learning are unknown. Here, we show that in rats, the dorsal striatum and basal amygdala belong to a common functional network underlying temporal expectancy and learning of a CS–US interval. Importantly, changes in coherence between striatum and amygdala local field potentials (LFPs) were found to couple these structures during interval estimation within the lower range of the theta rhythm (3–6 Hz). Strikingly, we …


Predictive Screening Of M1 And M2 Macrophages Reveals The Immunomodulatory Effectiveness Of Post Spinal Cord Injury Azithromycin Treatment, John C. Gensel, Timothy J. Kopper, Bei Zhang, Michael B. Orr, William M. Bailey Jan 2017

Predictive Screening Of M1 And M2 Macrophages Reveals The Immunomodulatory Effectiveness Of Post Spinal Cord Injury Azithromycin Treatment, John C. Gensel, Timothy J. Kopper, Bei Zhang, Michael B. Orr, William M. Bailey

Spinal Cord and Brain Injury Research Center Faculty Publications

Spinal cord injury (SCI) triggers a heterogeneous macrophage response that when experimentally polarized toward alternative forms of activation (M2 macrophages) promotes tissue and functional recovery. There are limited pharmacological therapies that can drive this reparative inflammatory state. In the current study, we used in vitrosystems to comprehensively defined markers of macrophages with known pathological (M1) and reparative (M2) properties in SCI. We then used these markers to objectively define the macrophage activation states after SCI in response to delayed azithromycin treatment. Mice were subjected to moderate-severe thoracic contusion SCI. Azithromycin or vehicle was administered beginning 30 minutes post-SCI and …


Research Methods In Occupational Health Psychology, Irvin Sam Schonfeld, Chu-Hsiang Chang Jan 2017

Research Methods In Occupational Health Psychology, Irvin Sam Schonfeld, Chu-Hsiang Chang

Publications and Research

http://www.springerpub.com/occupational-health-psychology.html

Occupational Health Psychology (OHP) is a rapidly expanding interdisciplinary field that focuses on the science and practice of psychology in promoting and developing workplace health- and safety-related initiatives. This comprehensive text for undergraduate and graduate survey courses is the first to encompass a wide range of key issues in OHP. It draws from the domains of psychology, public health, preventive medicine,nursing, industrial engineering, law, and epidemiology to focus on the theory and practice of protecting and promoting the health, well-being, and safety of individuals in the workplace and improving the quality of work life.

The text addresses key psychosocial …


Reduced Cost And Decreased Length Of Stay Associated With Acute Ischemic Stroke Care Provided By Nurse Practitioners: A Single Primary Stroke Center Experience, Leah Roering Np, Michelle Peterson Np, Muhammad Shah Miran Md, Melissa Freese, Kenneth Shea Md, M Fareed K. Suri Md Jan 2017

Reduced Cost And Decreased Length Of Stay Associated With Acute Ischemic Stroke Care Provided By Nurse Practitioners: A Single Primary Stroke Center Experience, Leah Roering Np, Michelle Peterson Np, Muhammad Shah Miran Md, Melissa Freese, Kenneth Shea Md, M Fareed K. Suri Md

Nursing Posters

Nurse practitioner (NP) have a wider role in modern stroke centers providing quality evidence based care to patients with both in and outpatient settings for acute ischemic stroke (AIS) and transient ischemic attack (TIA) patients. We studies the outcome measures, length of stay (LOS) and cost before and after implementation of nurse practitioners as the primary medical provider in a community based stroke center.