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https://www.readbyqxmd.com/read/28102882/factors-associated-with-significant-mri-findings-in-medical-walk-in-patients-with-acute-headache
#1
Joris Budweg, Till Sprenger, Anthony De Vere-Tyndall, Anne Hagenkord, Christoph Stippich, Christoph T Berger
QUESTION: Acute headache is a main reason for emergency consultations and can be a symptom of dangerous neurological conditions. We hypothesised that in medical walk-in headache patients with low suspicion of intracranial bleeding significant findings in brain magnetic resonance imaging (MRI) are associated with clinical features. METHODS: Retrospective chart review on medical outpatient referrals for brain MRI (2010-2014) with the chief complaint "acute headache" (duration <4 weeks)...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102739/perceptions-of-mild-traumatic-brain-injury-in-adults-a-scoping-review
#2
Katie Mah, Andrea Hickling, Nick Reed
PURPOSE: The purpose of this article is to synthesise the scholarly literature related to perceptions of mild traumatic brain injury (mTBI) and health outcomes in an adult population. METHODS: A scoping review was undertaken. An electronic search of seven databases was conducted. Studies were included if (1) they related to perceptions of mild traumatic brain injury, (2) the population was adults with mild traumatic brain injury, and (3) health outcomes were reported...
January 19, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28102337/deep-brain-stimulation-for-myoclonus-dystonia-syndrome-with-double-mutations-in-dyt1-and-dyt11
#3
Jia-Wei Wang, Ji-Ping Li, Yun-Peng Wang, Xiao-Hua Zhang, Yu-Qing Zhang
Myoclonus-dystonia syndrome (MDS) is a rare autosomal dominant inherited disorder characterized by the presentation of both myoclonic jerks and dystonia. Evidence is emerging that deep brain stimulation (DBS) may be a promising treatment for MDS. However, there are no studies reporting the effects of DBS on MDS with double mutations in DYT1 and DYT11. Two refractory MDS patients with double mutations were treated between 2011 and 2015 in our center. Genetic testing for DYT1 and DYT11 was performed through polymerase chain reaction amplification and direct sequencing of the specific exons of genes...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101763/mir-126-affects-brain-heart-interaction-after-cerebral-ischemic-stroke
#4
Jieli Chen, Chengcheng Cui, Xiaoping Yang, Jiang Xu, Poornima Venkat, Alex Zacharek, Peng Yu, Michael Chopp
Cardiovascular diseases are approximately three times higher in patients with neurological deficits than in patients without neurological deficits. MicroRNA-126 (MiR-126) facilitates vascular remodeling and decreases fibrosis and is emerging as an important factor in the pathogenesis of cardiovascular diseases and cerebral stroke. In this study, we tested the hypothesis that decreased miR-126 after ischemic stroke may play an important role in regulating cardiac function. Wild-type (WT), specific conditional-knockout endothelial cell miR-126 (miR-126(EC-/-)), and miR-126 knockout control (miR-126(fl/fl)) mice were subjected to distal middle cerebral artery occlusion (dMCAo) (n = 10/group)...
January 19, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28101405/deep-tissue-photoacoustic-computed-tomography-with-a-fast-and-compact-laser-system
#5
Depeng Wang, Yuehang Wang, Weiran Wang, Dandan Luo, Upendra Chitgupi, Jumin Geng, Yang Zhou, Lidai Wang, Jonathan F Lovell, Jun Xia
Photoacoustic computed tomography (PACT) holds great promise for biomedical imaging, but wide-spread implementation is impeded by the bulkiness of flash-lamp-pumped laser systems, which typically weigh between 50 - 200 kg, require continuous water cooling, and operate at a low repetition rate. Here, we demonstrate that compact lasers based on emerging diode technologies are well-suited for preclinical and clinical PACT. The diode-pumped laser used in this study had a miniature footprint (13 × 14 × 7 cm(3)), weighed only 1...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28100765/acute-transient-vestibular-syndrome-prevalence-of-stroke-and-efficacy-of-bedside-evaluation
#6
Jae-Hwan Choi, Min-Gyu Park, Seo Young Choi, Kyung-Pil Park, Seung Kug Baik, Ji-Soo Kim, Kwang-Dong Choi
BACKGROUND AND PURPOSE: The aim of this study was to determine the prevalence of stroke and efficacy of bedside evaluation in diagnosing stroke in acute transient vestibular syndrome (ATVS). METHODS: We performed a prospective, single-center, observational study that had consecutively recruited 86 patients presenting with ATVS to the emergency department of Pusan National University Yangsan Hospital from January to December 2014. All patients received a constructed evaluation, including HINTS plus (head impulse, nystagmus patterns, test of skew, and finger rubbing) and brain magnetic resonance imagings...
January 18, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28099914/advances-in-epigenetic-glioblastoma-therapy
#7
Dong Hoon Lee, Hyun-Wook Ryu, Hye-Rim Won, So Hee Kwon
Glioblastoma multiforme (GBM) is the most lethal primary brain tumor in adults despite contemporary gold-standard first-line treatment strategies. This type of tumor recurs in virtually all patients and no commonly accepted standard treatment exists for the recurrent disease. Therefore, advances in all scientific and clinical aspects of GBM are urgently needed. Epigenetic mechanisms are one of the major factors contributing to the pathogenesis of cancers, including glioblastoma. Epigenetic modulators that regulate gene expression by altering the epigenome and non-histone proteins are being exploited as therapeutic drug targets...
January 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099507/correlations-of-behavioral-deficits-with-brain-pathology-assessed-through-longitudinal-mri-and-histopathology-in-the-hdhq150-q150-mouse-model-of-huntington-s-disease
#8
Ivan Rattray, Edward J Smith, William R Crum, Thomas A Walker, Richard Gale, Gillian P Bates, Michel Modo
A variety of mouse models have been developed that express mutant huntingtin (mHTT) leading to aggregates and inclusions that model the molecular pathology observed in Huntington's disease. Here we show that although homozygous HdhQ150 knock-in mice developed motor impairments (rotarod, locomotor activity, grip strength) by 36 weeks of age, cognitive dysfunction (swimming T maze, fear conditioning, odor discrimination, social interaction) was not evident by 94 weeks. Concomitant to behavioral assessments, T2-weighted MRI volume measurements indicated a slower striatal growth with a significant difference between wild type (WT) and HdhQ150 mice being present even at 15 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28099246/paradoxical-emergence-administration-of-subanesthetic-ketamine-during-isoflurane-anesthesia-induces-burst-suppression-but-accelerates-recovery
#9
Viviane S Hambrecht-Wiedbusch, Duan Li, George A Mashour
BACKGROUND: Promoting arousal by manipulating certain brain regions and/or neurotransmitters has been a recent research focus, with the goal of trying to improve recovery from general anesthesia. The current study tested the hypothesis that a single subanesthetic dose of ketamine during isoflurane anesthesia would increase cholinergic tone in the prefrontal cortex and accelerate recovery. METHODS: Adult male rats were implanted with electroencephalography electrodes (frontal, parietal, and occipital cortex) and a microdialysis guide cannula targeted for the prefrontal cortex...
January 18, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28099136/alexithymia-and-automatic-processing-of-emotional-stimuli-a-systematic-review
#10
Uta-Susan Donges, Thomas Suslow
Alexithymia is a personality trait characterized by difficulties in recognizing and verbalizing emotions and the utilization of a cognitive style that is oriented toward external events, rather than intrapsychic experiences. Alexithymia is considered a vulnerability factor influencing onset and course of many psychiatric disorders. Even though emotions are, in general, elicited involuntarily and emerge without conscious effort, it is surprising that little attention in etiological considerations concerning alexithymia has been given to deficits in automatic emotion processing and their neurobiological bases...
January 18, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28098771/breast-cancer-brain-metastases-clonal-evolution-in-clinical-context
#11
REVIEW
Jodi M Saunus, Amy E McCart Reed, Zhun Leong Lim, Sunil R Lakhani
Brain metastases are highly-evolved manifestations of breast cancer arising in a unique microenvironment, giving them exceptional adaptability in the face of new extrinsic pressures. The incidence is rising in line with population ageing, and use of newer therapies that stabilise metastatic disease burden with variable efficacy throughout the body. Historically, there has been a widely-held view that brain metastases do not respond to circulating therapeutics because the blood-brain-barrier (BBB) restricts their uptake...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098514/edible-and-medicinal-mushrooms-emerging-brain-food-for-the-mitigation-of-neurodegenerative-diseases
#12
Chia-Wei Phan, Pamela David, Vikineswary Sabaratnam
There is an exponential increase in dementia in old age at a global level because of increasing life expectancy. The prevalence of neurodegenerative diseases such as dementia and Alzheimer's disease (AD) will continue to rise steadily, and is expected to reach 42 million cases worldwide in 2020. Despite the advancement of medication, the management of these diseases remains largely ineffective. Therefore, it is vital to explore novel nature-based nutraceuticals to mitigate AD and other age-related neurodegenerative disorders...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28097868/development-of-phenothiazine-based-theranostic-compounds-that-act-both-as-inhibitors-of-%C3%AF-amyloid-aggregation-and-imaging-probes-for-amyloid-plaques-in-alzheimer-s-disease
#13
Pascal Dao, Feifei Ye, Yan Liu, Zhiyun Du, Kun Zhang, Chang-Zhi Dong, Bernard Meunier, Huixiong Chen
Early detection of Alzheimer's disease (AD) is imperative in enabling the understanding and clinical treatment of this disorder, as well as in preventing its progression. Imaging agents specifically targeting Aβ plaques in the brain and the retina may lead to the early diagnosis of AD. Among them, near infrared fluorescent imaging has emerged as an attractive tool to noninvasively identify and monitor diseases during the preclinical and early stages. In the present study, we report the design, synthesis and evaluation of a series of new near-infrared fluorescent probes...
January 18, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28096541/the-mucosal-immune-system-master-regulator-of-bidirectional-gut-brain-communications
#14
REVIEW
Nick Powell, Marjorie M Walker, Nicholas J Talley
Communication between the brain and gut is not one-way, but a bidirectional highway whereby reciprocal signals between the two organ systems are exchanged to coordinate function. The messengers of this complex dialogue include neural, metabolic, endocrine and immune mediators responsive to diverse environmental cues, including nutrients and components of the intestinal microbiota (microbiota-gut-brain axis). We are now starting to understand how perturbation of these systems affects transition between health and disease...
January 18, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28096524/a-case-of-seronegative-limbic-encephalitis-with-multiple-sclerosis-a-possible-overlapping-syndrome
#15
Zerrin Karaaslan, Özlem Mercan, Erdem Tüzün, Handan Mısırlı, Recai Türkoğlu
BACKGROUND Autoimmune encephalitis might coexist in patients with autoimmune demyelinating disorders. CASE REPORT We report on a case of a 45-year-old female multiple sclerosis (MS) patient presenting with acute onset short-term memory loss, altered mental status, inflammatory cerebrospinal fluid (CSF) findings and an MRI lesion on the left temporal lobe. An extensive panel for neuronal autoantibodies proved negative. Neuropsychological symptoms gave a prompt response to immunotherapy but nevertheless control MRI showed left hippocampal atrophy...
January 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28096207/use-of-strategies-to-improve-door-to-needle-times-with-tissue-type-plasminogen-activator-in-acute-ischemic-stroke-in-clinical-practice-findings-from-target-stroke
#16
Ying Xian, Haolin Xu, Barbara Lytle, Jason Blevins, Eric D Peterson, Adrian F Hernandez, Eric E Smith, Jeffrey L Saver, Steven R Messé, Mary Paulsen, Robert E Suter, Mathew J Reeves, Edward C Jauch, Lee H Schwamm, Gregg C Fonarow
BACKGROUND: The implementation of Target: Stroke Phase I, the first stage of the American Heart Association's national quality improvement initiative to accelerate door-to-needle (DTN) times, was associated with an average 15-minute reduction in DTN times. TARGET: Stroke phase II was launched in April 2014 with a goal of promoting further reduction in treatment times for tissue-type plasminogen activator (tPA) administration. METHODS AND RESULTS: We conducted a second survey of Get With The Guidelines-Stroke hospitals regarding strategies used to reduce delays after Target: Stroke and quantify their association with DTN times...
January 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28096130/early-life-nutrition-and-neurodevelopment-use-of-the-piglet-as-a-translational-model
#17
REVIEW
Austin T Mudd, Ryan N Dilger
Optimal nutrition early in life is critical to ensure proper structural and functional development of infant organ systems. Although pediatric nutrition historically has emphasized research on the relation between nutrition, growth rates, and gastrointestinal maturation, efforts increasingly have focused on how nutrition influences neurodevelopment. The provision of human milk is considered the gold standard in pediatric nutrition; thus, there is interest in understanding how functional nutrients and bioactive components in milk may modulate developmental processes...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095746/targeting-of-herbal-bioactives-through-folate-receptors-a-novel-concept-to-enhance-intracellular-drug-delivery-in-cancer-therapy
#18
Anshita Gupta, Chanchal Deep Kaur, Shailendra Saraf, Swarnlata Saraf
Targeted drug delivery through folate receptor (FR) has emerged as a most biocompatible, target oriented, and non-immunogenic cargoes for the delivery of anticancer drugs. FRs are highly overexpressed in many tumor cells (like ovarian, lung, breast, kidney, brain, endometrial, and colon cancer), and targeting them through conjugates bearing specific ligand with encapsulated nanodrug moiety is undoubtedly, a promising approach toward tumor targeting. Folate, being an endogenous ligand, can be exploited well to affect various cellular events occurring during the progress of tumor, in a more natural and definite way...
January 17, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28095639/early-involvement-of-lysosome-dysfunction-in-the-degeneration-of-cerebral-cortical-neurons-caused-by-the-lipid-peroxidation-product-4-hydroxynonenal
#19
Shi Zhang, Erez Eitan, Mark P Mattson
Free radical-mediated oxidative damage to proteins, lipids and DNA occurs in neurons during acute brain injuries and in neurodegenerative disorders. Membrane lipid peroxidation contributes to neuronal dysfunction and death, in part by disrupting neuronal ion homeostasis and cellular bioenergetics. Emerging findings suggest that 4-hydroxynonenal (HNE), an aldehyde produced during lipid peroxidation, impairs the function of various proteins involved in neuronal homeostasis. Here we tested the hypothesis that HNE impairs the cellular system that removes damaged proteins and organelles, the autophagy - lysosome pathway in rat primary cortical neurons...
January 17, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28095378/advanced-neuroimaging-techniques-in-pediatric-hydrocephalus
#20
Smruti K Patel, Weihong Yuan, Francesco T Mangano
From the early days of pneumoencephalography and ventriculography to the emerging technology of magnetic resonance diffusion tensor imaging (DTI) of the present day, neuroimaging has always been a critical tool in the diagnosis and treatment of pediatric hydrocephalus. There is accumulating evidence from both human and animal research suggesting that one of the major pathophysiological mechanisms underlying poor outcomes in these children is damage to vulnerable white matter (WM) structures in the brain as a result of ventricular enlargement and increased intracranial pressure...
January 18, 2017: Pediatric Neurosurgery
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