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29 papers 0 to 25 followers
Laura Moreno-Lopez, Oren Contreras-Rodriguez, Carles Soriano-Mas, Emmanuel A Stamatakis, Antonio Verdejo-Garcia
BACKGROUND/OBJECTIVE: Obesity has been associated with brain alterations characterised by poorer interaction between a hypersensitive reward system and a comparatively weaker prefrontal-cognitive control system. These alterations may occur as early as in adolescence, but this notion remains unclear, as no studies so far have examined global functional connectivity in adolescents with excess weight. SUBJECTS/METHODS: We investigated functional connectivity in a sample of 60 adolescents with excess weight and 55 normal weight controls...
2016: NeuroImage: Clinical
Omer Elsabbagh
Normal-pressure hydrocephalus is an almost curable disease, but the results of management are still not encouraging owing to the deceptive nature of the disease and its sensitivity to treatment. This has made the management of the disease controversial. The following self-documented report clarifies this. I have reported my experience in a scientific manner so that my colleagues can understand thoroughly certain facts related to intracranial hypertension. Achieving the optimal adjustment of the valve is a real challenge...
2016: Acta Neurochirurgica. Supplement
M S Sandhu, H H Ross, K Z Lee, B K Ormerod, P J Reier, D D Fuller
Following spinal cord injury (SCI), intraspinal transplantation of neural progenitor cells (NPCs) harvested from the forebrain sub-ventricular zone (SVZ) can improve locomotor outcomes. Cervical SCI often results in respiratory-related impairments, and here we used an established model cervical SCI (C2 hemisection, C2Hx) to confirm the feasibility of mid-cervical transplantation of SVZ-derived NPCs and the hypothesis that that this procedure would improve spontaneous respiratory motor recovery. NPCs were isolated from the SVZ of enhanced green fluorescent protein (GFP) expressing neonatal rats, and then intraspinally delivered immediately caudal to an acute C2Hx lesion in adult non-GFP rats...
June 11, 2016: Experimental Neurology
Leszek Herbowski
The impact of the atmosphere on human physiology has been studied widely within the last years. In practice, intracranial pressure is a pressure difference between intracranial compartments and the surrounding atmosphere. This means that gauge intracranial pressure uses atmospheric pressure as its zero point, and therefore, this method of pressure measurement excludes the effects of barometric pressure's fluctuation. The comparison of these two physical quantities can only take place through their absolute value relationship...
June 22, 2016: International Journal of Biometeorology
Stephen Honeybul, Grant R Gillett, Kwok M Ho, Courtney Janzen, Kate Kruger
No abstract text is available yet for this article.
September 2016: Journal of Neurosurgery
Marcello Moccia, Raffaele Palladino, Andrea Falco, Francesco Saccà, Roberta Lanzillo, Vincenzo Brescia Morra
No abstract text is available yet for this article.
September 2016: Journal of Neurology, Neurosurgery, and Psychiatry
Brian R Hirshman, Laurie A Jones, Jessica A Tang, James A Proudfoot, Kathleen M Carley, Bob S Carter, Clark C Chen
The core premise of evidence-based medicine is that clinical decisions are informed by the peer-reviewed literature. To extract meaningful conclusions from this literature, one must first understand the various forms of biases inherent within the process of peer review. We performed an exhaustive search that identified articles exploring the question of whether survival benefit was associated with maximal high-grade glioma (HGG) resection and analysed this literature for patterns of publication. We found that the distribution of these 108 articles among the 26 journals to be non-random (p<0...
April 26, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
Rebekah M Ahmed, Emma M Devenney, Muireann Irish, Arne Ittner, Sharon Naismith, Lars M Ittner, Jonathan D Rohrer, Glenda M Halliday, Andrew Eisen, John R Hodges, Matthew C Kiernan
Neurodegeneration refers to a heterogeneous group of brain disorders that progressively evolve. It has been increasingly appreciated that many neurodegenerative conditions overlap at multiple levels and therefore traditional clinicopathological correlation approaches to better classify a disease have met with limited success. Neuronal network disintegration is fundamental to neurodegeneration, and concepts based around such a concept may better explain the overlap between their clinical and pathological phenotypes...
May 12, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
Lili Song, Else Charlotte Sandset, Hisatomi Arima, Emma Heeley, Candice Delcourt, Guofeng Chen, Jie Yang, Guojun Wu, Xia Wang, Pablo M Lavados, Yining Huang, Christian Stapf, Jiguang Wang, Thompson G Robinson, John Chalmers, Richard I Lindley, Craig S Anderson
OBJECTIVE: Antithrombotic agents increase risks of intracerebral haemorrhage (ICH) and associated adverse outcomes. We determined differential effects of early blood pressure (BP) lowering in patients with/without antithrombotic-associated ICH in the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage Trials (INTERACT1 and 2). DESIGN: Post hoc pooled analyses of the INTERACT studies-international, multicentre, prospective, open, blinded end point trials of patients with ICH (<6 h) and elevated systolic BP (SBP 150-180 mm Hg) randomly assigned to intensive (target SBP <140 mm Hg) or guideline-based (SBP <180 mm Hg) BP management...
May 13, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
Aurélien Lathuilière, Vanessa Laversenne, Alberto Astolfo, Erhard Kopetzki, Helmut Jacobsen, Marco Stampanoni, Bernd Bohrmann, Bernard L Schneider, Patrick Aebischer
Passive immunization against misfolded toxic proteins is a promising approach to treat neurodegenerative disorders. For effective immunotherapy against Alzheimer's disease, recent clinical data indicate that monoclonal antibodies directed against the amyloid-β peptide should be administered before the onset of symptoms associated with irreversible brain damage. It is therefore critical to develop technologies for continuous antibody delivery applicable to disease prevention. Here, we addressed this question using a bioactive cellular implant to deliver recombinant anti-amyloid-β antibodies in the subcutaneous tissue...
May 2016: Brain: a Journal of Neurology
Dee Anna Glaser, Anastasia Kurta
Numerous nonsurgical options for periorbital rejuvenation are available and can be used alone or as adjuncts to other nonsurgical and surgical options. Topicals, chemical peels, laser resurfacing, and dermabrasion therapy, along with neuromodulators and fillers, can be used to enhance the appearance of the periorbital region.
May 2016: Facial Plastic Surgery Clinics of North America
Jean Carruthers, Alastair Carruthers
BACKGROUND: Facial aging is multifactorial, including changes in all the anatomical layers of the face including bone, fat, connective tissues and skin. METHODS: An evaluation of the multifactorial causation of facial aging pointed to the need for a multifactorial approach to restoration and rejuvenation of the aging human face. RESULTS: The varied aetiologies of the expressions of facial aging require more interventions than a unipolar approach...
May 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Nicole Langelier, Katie Beleznay, Julie Woodward
BACKGROUND: The upper face and periocular region is a complex and dynamic part of the face. Successful rejuvenation requires a combination of minimally invasive modalities to fill dents and hollows, resurface rhytides, improve pigmentation, and smooth the mimetic muscles of the face without masking facial expression. METHODS: Using review of the literature and clinical experience, the authors discuss our strategy for combining botulinum toxin, facial filler, ablative laser, intense pulsed light, microfocused ultrasound, and microneedle fractional radiofrequency to treat aesthetic problems of the upper face including brow ptosis, temple volume loss, A-frame deformity of the superior sulcus, and superficial and deep rhytides...
May 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Sujira Mukda, Jiraporn Panmanee, Parichart Boontem, Piyarat Govitrapong
Beta-amyloid (Aβ) peptide is the pathological hallmark of Alzheimer's disease (AD). Interestingly, Aβ is normally synthesized in the brain of healthy people; however, during advanced aging, the level of Aβ peptides increases. As a result, the aggregation of Aβ peptides leads to trafficking problems, synaptic loss, inflammation, and cell death. Melatonin, the hormone primarily synthesized and secreted from the pineal gland, is decreased with progressing age, particularly in Alzheimer's disease patients. The loss of melatonin levels and the abnormal accumulation of some proteins, such as Aβ peptides in the brains of AD patients are considered important factors in the initiation of the cognitive symptoms of dementia...
May 16, 2016: Neuroscience Letters
Morgan Broggi, Veronica Redaelli, Giovanni Tringali, Francesco Restelli, Luigi Romito, Silvia Schiavolin, Fabrizio Tagliavini, Giovanni Broggi
OBJECTIVE: Idiopathic normal pressure hydrocephalus (iNPH) may present, besides the classic triad of symptoms, with extrapyramidal parkinsonianlike movement disorders. We present a randomized prospective study comparing adjustable ventriculoperitoneal (VP) shunt insertion plus dopamine oral therapy (group A) versus VP shunt alone (group B) in patients affected by iNPH associated with parkinsonism. METHODS: A detailed screening process included neurologic, neurosurgical, and neuropsychological evaluations, followed by a cerebrospinal fluid tap test and resistance outflow measurement...
June 2016: World Neurosurgery
Rechdi Ahdab, Samar S Ayache, Pierre Brugières, Wassim H Farhat, Jean-Pascal Lefaucheur
The hand motor hot spot (hMHS) is one of the most salient parameters in transcranial magnetic stimulation (TMS) practice, notably used for targeting. It is commonly accepted that the hMHS corresponds to the hand representation within the primary motor cortex (M1). Anatomical and imaging studies locate this representation in a region of the central sulcus called the "hand knob". The aim of this study was to determine if the hMHS location corresponds to its expected location at the hand knob. Twelve healthy volunteers and eleven patients with chronic neuropathic pain of various origins, but not related to a brain lesion, were enrolled...
July 2016: Brain Topography
Paolo Barbaresi, Emanuela Mensà
Electrical stimulation of the dorsal columns (DCs; spinal cord stimulation; SCS) has been proposed to treat chronic neuropathic pain. SCS may activate a dual mechanism that would affect both the spinal cord and supraspinal levels. Stimulation of DCs or DC nuclei (DCN) in animals where neuropathic pain has been induced causes activation of brainstem centers including the periaqueductal gray (PAG), which is involved in the endogenous pain suppression system. Biotinylated dextran-amine (BDA) was iontophoretically injected into the DCN to analyze the ascending projection directed to the PAG...
August 2016: Neuroscience Research
Hayate Javed, Sindhu A Menon, Karima M Al-Mansoori, Abdelmojib Al-Wandi, Nour K Majbour, Mustafa T Ardah, Shiji Varghese, Nishant N Vaikath, M Emdadul Haque, Mimoun Azzouz, Omar Ma El-Agnaf
Parkinson's disease (PD) is a debilitating neurodegenerative disease characterized by tremor, rigidity, bradykinesia, and postural instability, for which there is no effective treatment available till date. Here, we report the development of nonviral vectors specific for neuronal cells that can deliver short interfering RNA (siRNA) against the α-synuclein gene (SNCA), and prevent PD-like symptoms both in vitro and in vivo. These vectors not only help siRNA duplexes cross the blood-brain barrier in mice, but also stabilize these siRNAs leading to a sustainable 60-90% knockdown of α-synuclein protein...
April 2016: Molecular Therapy: the Journal of the American Society of Gene Therapy
Dominic E Job, David Alexander Dickie, David Rodriguez, Andrew Robson, Cyril Pernet, Mark E Bastin, James P Boardman, Alison D Murray, Trevor Ahearn, Gordon D Waiter, Roger T Staff, Ian J Deary, Susan D Shenkin, Joanna M Wardlaw
The Brain Images of Normal Subjects (BRAINS) Imagebank ( is an integrated repository project hosted by the University of Edinburgh and sponsored by the Scottish Imaging Network: A Platform for Scientific Excellence (SINAPSE) collaborators. BRAINS provide sharing and archiving of detailed normal human brain imaging and relevant phenotypic data already collected in studies of healthy volunteers across the life-course. It particularly focusses on the extremes of age (currently older age, and in future perinatal) where variability is largest, and which are under-represented in existing databanks...
January 18, 2016: NeuroImage
J P Harris, L A Struzyna, P L Murphy, D O Adewole, E Kuo, D K Cullen
OBJECTIVE: Connectome disruption is a hallmark of many neurological diseases and trauma with no current strategies to restore lost long-distance axonal pathways in the brain. We are creating transplantable micro-tissue engineered neural networks (micro-TENNs), which are preformed constructs consisting of embedded neurons and long axonal tracts to integrate with the nervous system to physically reconstitute lost axonal pathways. APPROACH: We advanced micro-tissue engineering techniques to generate micro-TENNs consisting of discrete populations of mature primary cerebral cortical neurons spanned by long axonal fascicles encased in miniature hydrogel micro-columns...
February 2016: Journal of Neural Engineering
2016-01-16 23:36:17
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