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https://www.readbyqxmd.com/read/28332092/the-spectrum-of-neuropathological-changes-associated-with-congenital-zika-virus-infection
#1
Leila Chimelli, Adriana S O Melo, Elyzabeth Avvad-Portari, Clayton A Wiley, Aline H S Camacho, Vania S Lopes, Heloisa N Machado, Cecilia V Andrade, Dione C A Dock, Maria Elisabeth Moreira, Fernanda Tovar-Moll, Patricia S Oliveira-Szejnfeld, Angela C G Carvalho, Odile N Ugarte, Alba G M Batista, Melania M R Amorim, Fabiana O Melo, Thales A Ferreira, Jacqueline R L Marinho, Girlene S Azevedo, Jeime I B F Leal, Rodrigo F Madeiro da Costa, Stevens Rehen, Monica B Arruda, Rodrigo M Brindeiro, Rodrigo Delvechio, Renato S Aguiar, Amilcar Tanuri
A major concern associated with ZIKV infection is the increased incidence of microcephaly with frequent calcifications in infants born from infected mothers. To date, postmortem analysis of the central nervous system (CNS) in congenital infection is limited to individual reports or small series. We report a comprehensive neuropathological study in ten newborn babies infected with ZIKV during pregnancy, including the spinal cords and dorsal root ganglia (DRG), and also muscle, pituitaries, eye, systemic organs, and placentas...
March 22, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28325529/transcutaneous-stimulation-of-the-posterior-tibial-nerve-for-treating-refractory-urge-incontinence-of-idiopathic-and-neurogenic-origin
#2
C Valles-Antuña, M L Pérez-Haro, C González-Ruiz de L, A Quintás-Blanco, E M Tamargo-Diaz, J García-Rodríguez, A San Martín-Blanco, J M Fernandez-Gomez
OBJECTIVE: To assess the efficacy of treatment with transcutaneous posterior tibial nerve stimulation (TPTNS) in patients with urge urinary incontinence, of neurogenic or nonneurogenic origin, refractory to first-line therapeutic options. MATERIAL AND METHODS: We included 65 patients with urge urinary incontinence refractory to medical treatment. A case history review, a urodynamic study and a somatosensory evoked potentials (SEP) study were conducted before the TPTNS, studying the functional urological condition by means of a voiding diary...
March 18, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28319202/evolving-notch-polyq-tracts-reveal-possible-solenoid-interference-elements
#3
Albert J Erives
Polyglutamine (polyQ) tracts in regulatory proteins are extremely polymorphic. As functional elements under selection for length, triplet repeats are prone to DNA replication slippage and indel mutations. Many polyQ tracts are also embedded within intrinsically disordered domains, which are less constrained, fast evolving, and difficult to characterize. To identify structural principles underlying polyQ tracts in disordered regulatory domains, here I analyze deep evolution of metazoan Notch polyQ tracts, which can generate alleles causing developmental and neurogenic defects...
2017: PloS One
https://www.readbyqxmd.com/read/28286179/formation-of-hippocampal-mhtt-aggregates-leads-to-impaired-spatial-memory-hippocampal-activation-and-adult-neurogenesis
#4
L C Schwab, K Richetin, R A Barker, N Déglon
Huntington's disease (HD) is a genetic neurodegenerative disorder characterized by a triad of motor, psychiatric and cognitive deficits with the latter classically attributed to disruption of fronto-striatal circuits. However, emerging evidence suggests that some of the cognitive deficits in HD may have their origin in other structures including the hippocampus. Hippocampal abnormalities have been reported in HD mouse models particularly in terms of performance on the Morris Water Maze. However, in these animals, it is difficult to be certain whether the spatial memory deficits are due to local pathology within this structure or their poor mobility and motivation...
March 9, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28283957/migraine-and-stroke-what-s-the-link-what-to-do
#5
REVIEW
Anna Gryglas, Robert Smigiel
Migraine and stroke are common, disabling neurologic disorders, with a high socioeconomic burden. A link between them has been proposed years ago, and various theories have been proposed to explain this bidirectional relation. However, the precise causes remain unclear. We briefly summarize existing hypotheses of this correlation seeking for recommendations for stroke prevention in migraineurs, if any exist. Among the strongest suggested theories of migraine-stroke association are cortical spreading depression, endovascular dysfunction, vasoconstriction, neurogenic inflammation, hypercoagulability, increased prevalence of vascular risk factors, shared genetic defects, cervical artery dissection, and patent foramen ovale...
March 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28275867/myositis-ossificans-in-children-a-review
#6
N K Sferopoulos, R Kotakidou, A S Petropoulos
The formation of lamellar bone in the soft tissues, where bone normally does not exist, is called myositis ossificans. However, it would be more accurate to describe as myositis ossificans the involvement of skeletal muscles and as ectopic or heterotopic ossification the involvement of soft tissues in general. The lesion is subdivided in genetic and non-genetic or acquired types. Myositis or fibrodysplasia ossificans progressiva is a debilitating rare genetic disorder. Clinical suspicion of the disease in the newborn on the basis of malformed great toes may lead to early clinical diagnosis, confirmatory diagnostic genetic testing and avoidance of iatrogenic harmful procedures...
March 9, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28275351/botulinum-toxin-is-effective-in-the-management-of-neurogenic-dysphagia-clinical-electrophysiological-findings-and-tips-on-safety-in-different-neurological-disorders
#7
Enrico Alfonsi, Domenico A Restivo, Giuseppe Cosentino, Roberto De Icco, Giulia Bertino, Antonio Schindler, Massimiliano Todisco, Mauro Fresia, Andrea Cortese, Paolo Prunetti, Matteo C Ramusino, Arrigo Moglia, Giorgio Sandrini, Cristina Tassorelli
Background and Aims: Neurogenic dysphagia linked to failed relaxation of the upper esophageal sphincter (UES) can be treated by injecting botulinum toxin (BTX) into the cricopharyngeal (CP) muscle. We compared the effects of this treatment in different neurological disorders with dysphagia, to evaluate its efficacy over time including the response to a second injection. Materials and Methods: Sixty-seven patients with neurogenic dysphagia associated with incomplete or absent opening of the UES (24 with brainstem or hemispheric stroke, 21 with parkinsonian syndromes, 12 with multiple sclerosis, and 10 with spastic-dystonic syndromes secondary to post-traumatic encephalopathy) were treated with the injection of IncobotulinumtoxinA (dose 15-20 U) into the CP muscle under electromyographic guidance...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28270193/cutaneous-neurogenic-inflammation-in-the-sensitized-acupoints-induced-by-gastric-mucosal-injury-in-rats
#8
Wei He, Xiao-Yu Wang, Hong Shi, Wan-Zhu Bai, Bin Cheng, Yang-Shuai Su, Xiao-Chun Yu, Xiang-Hong Jing, Bing Zhu
BACKGROUND: In acupuncture practice, the most important step is to confirm the location of a sensitized acupoint which reflects a diagnosis and can be stimulated with a specialized needle to treat the disease. Abnormal symptoms such as hyperalgesia or allodynia at the sensitized acupoints in patients with visceral disorders are considered to be in relation with referred pain and neurogenic inflammation. Yet, limited study has investigated the cutaneous neurochemical changes of the sensitized acuponits...
March 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28265323/bladder-and-bowel-dysfunction-in-children-an-update-on-the-diagnosis-and-treatment-of-a-common-but-underdiagnosed-pediatric-problem
#9
REVIEW
Joana Dos Santos, Roberto I Lopes, Martin A Koyle
Bladder and bowel dysfunction (BBD) describes a spectrum of lower urinary symptoms (LUTS) accompanied by fecal elimination issues that manifest primarily by constipation and/or encopresis. This increasingly common entity is a potential cause of significant physical and psychosocial burden for children and families. BBD is commonly associated with vesicoureteral reflux (VUR) and recurrent urinary tract infections (UTIs), which at its extreme may lead to renal scarring and kidney failure. Additionally, BBD is frequently seen in children diagnosed with behavioural and neuropsychiatric disorders such as attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD)...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28252410/a-density-based-clustering-approach-to-motor-unit-potential-characterizations-to-support-diagnosis-of-neuromuscular-disorders
#10
Tahereh Kamali, Daniel Stashuk
Electrophysiological muscle classification involves characterization of extracted motor unit potentials (MUPs) followed by the aggregation of these MUP characterizations. Existing techniques consider three classes (i.e., myopathic, neurogenic, and normal) for both MUP characterization and electrophysiological muscle classification. However, diseased induced MUP changes are continuous in nature, which make it difficult to find distinct boundaries between normal, myopathic and neurogenic MUPs. Hence, MUP characterization based on more than three classes is better able to represent the various effects of disease...
February 23, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28243610/pet-imaging-of-neurogenic-activity-in-the-adult-brain-toward-in-vivo-imaging-of-human-neurogenesis
#11
Yasuhisa Tamura, Yosky Kataoka
Neural stem cells are present in 2 neurogenic regions, the subventricular zone (SVZ) and the subgranular zone (SGZ) of the hippocampal dentate gyrus (DG), and continue to generate new neurons throughout life. Adult hippocampal neurogenesis is linked to a variety of psychiatric disorders such as depression and anxiety, and to the therapeutic effects of antidepressants, as well as learning and memory. In vivo imaging for hippocampal neurogenic activity may be used to diagnose psychiatric disorders and evaluate the therapeutic efficacy of antidepressants...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28223920/therapeutic-potential-of-secreted-amyloid-precursor-protein-apps%C3%AE
#12
REVIEW
Bruce G Mockett, Max Richter, Wickliffe C Abraham, Ulrike C Müller
Cleavage of the amyloid precursor protein (APP) by α-secretase generates an extracellularly released fragment termed secreted APP-alpha (APPsα). Not only is this process of interest due to the cleavage of APP within the amyloid-beta sequence, but APPsα itself has many physiological properties that suggest its great potential as a therapeutic target. For example, APPsα is neurotrophic, neuroprotective, neurogenic, a stimulator of protein synthesis and gene expression, and enhances long-term potentiation (LTP) and memory...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28210976/regenerative-medicine-for-parkinson-s-disease-using-differentiated-nerve-cells-derived-from-human-buccal-fat-pad-stem-cells
#13
Haruka Takahashi, Hiroshi Ishikawa, Akira Tanaka
The purpose of this study was to evaluate the utility of human adipose stem cells derived from the buccal fat pad (hBFP-ASCs) for nerve regeneration. Parkinson's disease (PD) is a neurodegenerative disorder characterized by progressive death of dopaminergic neurons. PD is a candidate disease for cell replacement therapy because it has no fundamental therapeutic methods. We examined the properties of neural-related cells induced from hBFP-ASCs as a cell source for PD treatment. hBFP-ASCs were cultured in neurogenic differentiation medium for about 2 weeks...
February 16, 2017: Human Cell
https://www.readbyqxmd.com/read/28204809/ketamine-suppresses-the-substance-p-induced-production-of-il-6-and-il-8-by-human-u373mg-glioblastoma-astrocytoma-cells
#14
Keisuke Yamaguchi, Seiichiro Kumakura, Taisuke Murakami, Akimasa Someya, Eiichi Inada, Isao Nagaoka
The neuropeptide substance P (SP) is an important mediator of neurogenic inflammation within the central and peripheral nervous systems. SP has been shown to induce the expression of pro-inflammatory cytokines implicated in the pathogenesis of several disorders of the human brain via the neurokinin-1 receptor (NK-1R). Ketamine, an intravenous anesthetic agent, functions as a competitive antagonist of the excitatory neurotransmission N-methyl-D‑aspartate (NMDA) receptor, and also antagonizes the NK-1R by interfering with the binding of SP...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28193127/relations-between-the-results-of-complex-clinical-and-neurophysiological-examinations-in-patients-with-temporomandibular-disorders-symptoms
#15
Anna Sójka, Juliusz Huber, Wiesław Hędzelek, Agnieszka Wiertel-Krawczuk, Agnieszka Szymankiewicz-Szukała, Agnieszka Seraszek-Jaros, Aleksandra Kulczyk, Agnieszka Wincek, Magdalena Sobieska
OBJECTIVE: Reinvestigation of clinical importance of surface electromyography recordings (sEMG) from the masticatory, neck and shoulder girdle muscles in patients with various clinically detected temporomandibular disorders (TMDs). METHODS: Fifty women with myalgia diagnosis of Axis I DC/TMD and the same number of healthy female volunteers were studied clinically and neurophysiologically by means of sEMG. RESULTS: Unilateral more than bilateral complex symptoms of TMDs were related to the non-neurogenic masticatory rather than neck and shoulder girdle muscles dysfunctions at rest...
February 14, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28188802/crosstalk-of-metabolic-factors-and-neurogenic-signaling-in-adult-neurogenesis-implication-of-metabolic-regulation-for-mental-and-neurological-diseases
#16
Chong Gao, Qi Wang, Sookja K Chung, Jiangang Shen
Metabolic disorders like diabetes and obesity are commonly companied with neurological diseases and psychiatric disorders. Accumulating evidences indicated that cellular metabolic factors affect adult neurogenesis and have modulating effects on neurodegenerative disorders and psychiatric diseases. Adult neurogenesis contains multiple steps including proliferation of neural stem cells, lineage commitments of neural progenitor cells, maturation into functional neurons, and integration into neuronal network. Many intrinsic and extrinsic factors produced from neural stem/progenitor cells and their microenvironment or neurogenic niche take roles in modulating neurogenesis and contribute to the brain repair and functional recoveries in many neurological diseases and psychiatric disorders...
February 7, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28187807/neuropulmonology
#17
REVIEW
A Balofsky, J George, P Papadakos
Neuropulmonology refers to the complex interconnection between the central nervous system and the respiratory system. Neurologic injury includes traumatic brain injury, hemorrhage, stroke, and seizures, and in each there are far-reaching effects that can result in pulmonary dysfunction. Systemic changes can induce impairment of pulmonary function due to changes in the core structure and function of the lung. The conditions and disorders that often occur in these patients include aspiration pneumonia, neurogenic pulmonary edema, and acute respiratory distress syndrome, but also several abnormal respiratory patterns and sleep-disordered breathing...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28178375/melatonin-restores-hippocampal-neural-precursor-proliferation-and-prevents-cognitive-deficits-induced-by-jet-lag-simulation-in-adult-mice
#18
Deetje Iggena, York Winter, Barbara Steiner
Frequent flyers and shift workers undergo circadian dysrhythmia with adverse impact on body and mind. The circadian rhythm disorder "jet lag" disturbs hippocampal neurogenesis and spatial cognition, which represent morphological and functional adult brain plasticity. This raises the question if pro-neurogenic stimuli might prevent those consequences. However, suitable measures to mitigate jet lag induced adverse effects on brain plasticity have been neglected so far. Here, we used adult C57Bl6 mice to investigate the pro-neurogenic stimuli melatonin (8mg/kg i...
February 8, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28159196/cardiovascular-safety-of-droxidopa-in-patients-with-symptomatic-neurogenic-orthostatic-hypotension
#19
William B White, Robert A Hauser, Gerald J Rowse, Adam Ziemann, L Arthur Hewitt
The norepinephrine prodrug droxidopa improves symptoms of neurogenic orthostatic hypotension, a condition that is associated with diseases of neurogenic autonomic failure (e.g., Parkinson disease, multiple system atrophy, pure autonomic failure). These conditions are more prevalent in older patients who also have cardiovascular co-morbidities. Hence, we evaluated the cardiovascular safety of droxidopa in patients with symptomatic neurogenic orthostatic hypotension who participated in randomized controlled studies (short-term studies of 1 to 2 weeks and an intermediate 8- to 10-week study) and long-term open-label studies...
April 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28147381/speech-language-pathologists-use-of-hearing-screening-for-clients-with-aphasia-challenges-potential-solutions-and-future-directions
#20
JoAnn P Silkes, Kaitlin Winterstein
Purpose: The co-occurrence of aphasia and hearing loss can lead to compounded receptive communication impairment that is significantly worse than in either disorder alone. Therefore, identifying potential hearing loss is a critical part of communication assessment for clients with neurogenic communication disorders, many of whom have aphasia. This clinical focus article explores speech language pathologists' (SLPs') hearing-screening practices with this population, identifies patterns of concern, and presents potential solutions and future research needs...
February 1, 2017: American Journal of Speech-language Pathology
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