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https://www.readbyqxmd.com/read/28107775/beta-caryophyllene-protects-against-alcoholic-steatohepatitis-by-attenuating-inflammation-and-metabolic-dysregulation-in-mice
#1
Zoltan V Varga, Csaba Matyas, Katalin Erdelyi, Resat Cinar, Daniela Nieri, Andrea Chicca, Balazs Tamas Nemeth, Janos Paloczi, Tamas Lajtos, Lukas Corey, Gyorgy Hasko, Bin Gao, George Kunos, Jürg Gertsch, Pal Pacher
BACKGROUND AND AIMS: Beta-caryophyllene (BCP) is a plant-derived FDA approved food additive with anti-inflammatory properties. Some of its beneficial effects in vivo reported to involve activation of cannabinoid 2 receptors (CB2) that are predominantly expressed in immune cells. Herein, we evaluated the translational potential of BCP using a well-established model of chronic and binge alcohol-induced liver injury. METHODS: In this study we investigated the effects of BCP on liver injury induced by chronic plus binge alcohol feeding in mice in vivo by using biochemical assays, real-time PCR and histology analyses...
January 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28107666/development-of-a-microwave-energy-delivery-system-for-reversible-stunning-of-cattle
#2
D McLean, L Meers, J Ralph, J S Owen, A Small
Stunning prior to slaughter is commonly used to render the animal insensible to pain. However, for certain markets, stunning is disallowed, unless the animal can fully recover if not slaughtered. There are very few available methods of inducing a fully recoverable stun. This paper describes the development of a microwave energy application system for stunning cattle. Cadaver heads were used to demonstrate that brain temperature could be raised to a point at which insensibility would be expected to occur (44°C), and to calculate the power and time combinations required to achieve this in a range of cattle weights...
January 7, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28107629/discovery-of-1-2-3-triazole-derivatives-for-multimodality-pet-ct-cryoimaging-of-myelination-in-the-central-nervous-system
#3
Chunying Wu, Brendan Eck, Sheng Zhang, Junqing Zhu, Anand Dev Tiwari, Yifan Zhang, Yunjie Zhu, Jinming Zhang, Bin Wang, Xizhen Wang, Xu Wang, Jingqiang You, Jian Wang, Yihui Guan, Xingdang Liu, Xin Yu, Bruce D Trapp, Robert Miller, Jerry Silver, David Wilson, Yanming Wang
Myelin pathology is present in many neurological conditions such as multiple sclerosis (MS) and traumatic spinal cord injury (SCI). To facilitate development of novel therapies aimed at myelin repair, we set out to develop imaging agents that permit direct quantification of myelination in vivo. In this work, we designed and synthesized a series of fluorescent fluorinated myelin imaging agents that can be used for in vivo positron emission tomography (PET) imaging combined with subsequent post-mortem fluorescent cryoimaging...
January 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28106934/neuroimaging-the-neural-correlates-of-increased-risk-for-substance-use-disorders-in-attention-deficit-hyperactivity-disorder-a-systematic-review
#4
Vitria Adisetiyo, Kevin M Gray
BACKGROUND/OBJECTIVES: Children with attention-deficit/hyperactivity disorder (ADHD) are nearly three times more likely to develop substance use disorders (SUD) than their typically developing peers. Our objective was to review the existing neuroimaging research on high-risk ADHD (ie, ADHD with disruptive behavior disorders, familial SUD and/or early substance use), focusing on impulsivity as one possible mechanism underlying SUD risk. METHODS: A PubMed literature search was conducted using combinations of the keywords "ADHD," "substance use," "substance use disorder," "SUD," "addiction," "dependence," "abuse," "risk," "brain" "MRI," "imaging" and "neuroimaging...
January 20, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28106377/chemical-proteomics-maps-brain-region-specific-activity-of-endocannabinoid-hydrolases
#5
Marc P Baggelaar, Annelot van Esbroeck, Eva van Rooden, Bogdan I Florea, Herman S Overkleeft, Giovanni Marsicano, Francis Chaouloff, Mario van der Stelt
The biosynthetic and catabolic enzymes of the endocannabinoids tightly regulate endocannabinoid-mediated activation of the cannabinoid CB1 receptor. Monitoring the activities of these endocannabinoid hydrolases in different brain regions is, therefore, key to gain insight in spatiotemporal control of CB1 receptor-mediated physiology. We have employed a comparative chemical proteomics approach to quantitatively map the activity profile of endocannabinoid hydrolases in various mouse brain regions at the same time...
January 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28106159/temporal-variations-in-presynaptic-release-probability-in-the-lateral-habenula
#6
Hoyong Park, Myunghyun Cheon, Sungmin Kim, ChiHye Chung
Rhythmicity plays an important role in a number of biological systems. The habenular complex is reported to contain an intrinsic molecular clock and to show rhythmic expression of circadian clock genes and proteins including per2/PER2. In this study, we observed that there is a temporal rhythmicity in the presynaptic efficacy of the lateral habenula (LHb) neurons. We collected a substantial number of recordings at different time points of the day during the light phase. The frequency and amplitude of spontaneous excitatory transmission were increased in the afternoon compared to recordings performed in the morning...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106139/spatio-temporal-tolerance-of-visuo-tactile-illusions-in-artificial-skin-by-recurrent-neural-network-with-spike-timing-dependent-plasticity
#7
Alexandre Pitti, Ganna Pugach, Philippe Gaussier, Sotaro Shimada
Perceptual illusions across multiple modalities, such as the rubber-hand illusion, show how dynamic the brain is at adapting its body image and at determining what is part of it (the self) and what is not (others). Several research studies showed that redundancy and contingency among sensory signals are essential for perception of the illusion and that a lag of 200-300 ms is the critical limit of the brain to represent one's own body. In an experimental setup with an artificial skin, we replicate the visuo-tactile illusion within artificial neural networks...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106060/brain-microvasculature-defects-and-glut1-deficiency-syndrome-averted-by-early-repletion-of-the-glucose-transporter-1-protein
#8
Maoxue Tang, Guangping Gao, Carlos B Rueda, Hang Yu, David N Thibodeaux, Tomoyuki Awano, Kristin M Engelstad, Maria-Jose Sanchez-Quintero, Hong Yang, Fanghua Li, Huapeng Li, Qin Su, Kara E Shetler, Lynne Jones, Ryan Seo, Jonathan McConathy, Elizabeth M Hillman, Jeffrey L Noebels, Darryl C De Vivo, Umrao R Monani
Haploinsufficiency of the SLC2A1 gene and paucity of its translated product, the glucose transporter-1 (Glut1) protein, disrupt brain function and cause the neurodevelopmental disorder, Glut1 deficiency syndrome (Glut1 DS). There is little to suggest how reduced Glut1 causes cognitive dysfunction and no optimal treatment for Glut1 DS. We used model mice to demonstrate that low Glut1 protein arrests cerebral angiogenesis, resulting in a profound diminution of the brain microvasculature without compromising the blood-brain barrier...
January 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28105978/simultaneous-transplantation-of-fetal-ventral-mesencephalic-tissue-and-encapsulated-genetically-modified-cells-releasing-gdnf-in-a-hemi-parkinsonian-rat-model-of-parkinson-s-disease
#9
Alberto Perez-Bouza, Stefano Di, Stefanie Seiler, Morten Meyer, Lukas Andereggen, Alexander Huber, Raphael Guzman, Hans R
Transplantation of fetal ventral mesencephalic (VM) neurons for Parkinson's disease (PD) is limited by poor survival and suboptimal integration of grafted tissue into the host brain. In a 6-OHDA rat model of PD we investigated the feasibility of simultaneous transplantation of rat fetal VM tissue and polymer-encapsulated C2C12 myoblasts genetically modified to produce glial cell line-derived neurotrophic factor or mocktransfected myoblasts on graft function. Amphetamine-induced rotations were assessed prior and 2, 4, 6 and 9 weeks post-transplantation...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28105655/imperfect-de-convolution-may-introduce-spurious-psychophysiological-interactions-and-how-to-avoid-it
#10
Xin Di, Richard C Reynolds, Bharat B Biswal
Psychophysiological interaction (PPI) is a widely used regression-based method to study connectivity changes in different experimental conditions. A PPI effect is generated by point-by-point multiplication of a psychological variable (experimental design) and a physiological variable (time series of a seed region). If the psychological variable is non-centered with a constant component, the constant component will add a physiological variable to the PPI term. The physiological component would in theory be accounted for by the physiological main effect in the model...
January 20, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28105575/bongkrekic-acid-a-review-of-a-lesser-known-mitochondrial-toxin
#11
REVIEW
Mehruba Anwar, Amelia Kasper, Alaina R Steck, Joshua G Schier
INTRODUCTION: Bongkrekic acid (BA) has a unique mechanism of toxicity among the mitochondrial toxins: it inhibits adenine nucleotide translocase (ANT) rather than the electron transport chain. Bongkrekic acid is produced by the bacterium Burkholderia gladioli pathovar cocovenenans (B. cocovenenans) which has been implicated in outbreaks of food-borne illness involving coconut- and corn-based products in Indonesia and China. Our objective was to summarize what is known about the epidemiology, exposure sources, toxicokinetics, pathophysiology, clinical presentation, and diagnosis and treatment of human BA poisoning...
January 19, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28105481/-thoracic-injuries-in-severely-injured-children-association-with-increased-injury-severity-and-a-higher-number-of-complications
#12
Philipp Störmann, Julia Nadine Weber, Heike Jakob, Ingo Marzi, Dorien Schneidmueller
BACKGROUND: Severely injured children and adolescents in clinical practice are rare. For adequate treatment of these patients, detailed knowledge of anatomical and physiological peculiarities, as well as abundant injury patterns, are indispensable. Traumatic brain injuries are known to lead to an unfavorable outcome. In addition, thoracic trauma is regarded as prognostically unfavorable. OBJECTIVES: This study depicts epidemiology and injury patterns of severely injured children and adolescents focusing on peculiarities in the severely injured with associated thoracic injuries...
January 19, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28105349/subcutaneous-metastasis-after-three-surgeries-for-brain-metastasis-from-lung-cancer-a-case-report-and-review-of-the-literature
#13
Ji-Qing Qiu, Yu Cui, Li-Chao Sun, Zhan-Peng Zhu
Lung cancer is a common malignancy that is frequently associated with distant subcutaneous metastasis. However, reports of subcutaneous metastasis of lung cancer after three surgeries for recurrent brain metastasis are scarce. The present study describes the case of a 49-year-old female patient who was admitted to our hospital with a cutaneous mass. The patient had a history of lung cancer and had undergone three surgeries for brain metastases. The subcutaneous mass was considered to be an implantation metastasis from the previous brain metastases...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28105182/long-lasting-stable-disease-with-mtor-inhibitor-treatment-in-a-patient-with-a-perivascular-epithelioid-cell-tumor-a-case-report-and-literature-review
#14
Ezequiel Flechter, Yaniv Zohar, Ludmila Guralnik, Maria Passhak, Gil Bar Sela
Perivascular epithelioid cell tumor (PEComa) of the small intestine is extremely rare, and there is no established treatment at the present time. In 10% of patients with PEComas, genetic alterations of tuberous sclerosis complex have been reported. These genetic alterations activate mechanistic target of rapamycin (mTOR) in AMP-activated protein kinase and Ras/mitogen-activated protein kinase pathways, resulting in high mTOR activity. Since 2007, several cases of treatment with mTOR inhibitors in advanced PEComa have been reported...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104485/green-channel-autofluorescence-imaging-a-novel-and-sensitive-technique-to-delineate-infarcts
#15
Kang-Hoon Je, Wi-Sun Ryu, Su-Kyoung Lee, Eo Jin Kim, Jeong-Yeon Kim, Hee Jeong Jang, Jung E Park, Matthias Nahrendorf, Dawid Schellingerhout, Dong-Eog Kim
BACKGROUND: We have found that infarcted brain regions exhibit green channel autofluorescence (GCAF). Here, we compare ex vivo GCAF-imaging with 2,3,5-triphenylteterazolium chloride (TTC)-staining. NEW METHOD: C57BL/6 mice (n=120) underwent GCAF-imaging after transient or permanent middle cerebral artery occlusion (tMCAO or pMCAO). COMPARISON WITH EXISTING METHODS: TTC-staining may not reflect subtle ischemic injury. TTC-stained tissues, when reused, are prone to processing artifacts related to prior TTC-staining...
January 16, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28103924/combination-therapy-in-a-patient-with-chronic-neuronopathic-gaucher-disease-a-case-report
#16
Ferdinando Ceravolo, Michele Grisolia, Simona Sestito, Francesca Falvo, Maria Teresa Moricca, Daniela Concolino
BACKGROUND: The variants of neuronopathic Gaucher disease may be viewed as a clinical phenotypic continuum divided into acute and chronic forms. The chronic neuronopathic form of Gaucher disease is characterized by a later onset of neurological symptoms and protracted neurological and visceral involvement. The first-choice treatment for nonneuronopathic Gaucher disease is enzyme replacement therapy with recombinant analogues of the deficient human enzyme glucocerebrosidase. Enzyme replacement therapy has been shown to improve hematological and bone manifestations associated with Gaucher disease, but, as with most proteins, recombinant enzymes cannot cross the blood-brain barrier, which prevents effects on neurological manifestations...
January 20, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28103638/music-interventions-for-acquired-brain-injury
#17
REVIEW
Wendy L Magee, Imogen Clark, Jeanette Tamplin, Joke Bradt
BACKGROUND: Acquired brain injury (ABI) can result in impairments in motor function, language, cognition, and sensory processing, and in emotional disturbances, which can severely reduce a survivor's quality of life. Music interventions have been used in rehabilitation to stimulate brain functions involved in movement, cognition, speech, emotions, and sensory perceptions. An update of the systematic review published in 2010 was needed to gauge the efficacy of music interventions in rehabilitation for people with ABI...
January 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28103480/adrenergic-gate-release-for-spike-timing-dependent-synaptic-potentiation
#18
Yanling Liu, Lei Cui, Martin K Schwarz, Yan Dong, Oliver M Schlüter
Spike timing-dependent synaptic plasticity (STDP) serves as a key cellular correlate of associative learning, which is facilitated by elevated attentional and emotional states involving activation of adrenergic signaling. At cellular levels, adrenergic signaling increases dendrite excitability, but the underlying mechanisms remain elusive. Here we show that activation of β2-adrenoceptors promoted STD long-term synaptic potentiation at mouse hippocampal excitatory synapses by inactivating dendritic Kv1.1-containing potassium channels, which increased dendrite excitability and facilitated dendritic propagation of postsynaptic depolarization, potentially improving coincidental activation of pre- and postsynaptic terminals...
January 18, 2017: Neuron
https://www.readbyqxmd.com/read/28103426/analytical-characterization-and-pharmacological-evaluation-of-the-new-psychoactive-substance-4-fluoromethylphenidate-4%C3%A2-f-mph-and-differentiation-between-the-%C3%A2-threo-and-%C3%A2-erythro-diastereomers
#19
Gavin McLaughlin, Noreen Morris, Pierce V Kavanagh, John D Power, Geraldine Dowling, Brendan Twamley, John O'Brien, Gary Hessman, Brian Murphy, Donna Walther, John S Partilla, Michael H Baumann, Simon D Brandt
Misuse of (±)-threo-methylphenidate (methyl-2-phenyl-2-(piperidin-2-yl)acetate; Ritalin®, MPH) has long been acknowledged, but the appearance of MPH analogs in the form of 'research chemicals' has only emerged in more recent years. 4-Fluoromethylphenidate (4 F-MPH) is one of these recent examples and this study presents the identification and analytical characterization of two powdered 4 F-MPH products that were obtained from an online vendor in 2015. Interestingly, the products appeared to have originated from two distinct batches given that one product consisted of (±)-threo-4 F-MPH isomers whereas the second sample consisted of a mixture of (±)-threo and (±)-erythro 4 F-MPH...
January 19, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28103203/the-change-in-nt-pro-bnp-and-post-ptmc-echocardiography-parameters-in-patients-with-mitral-stenosis-a-pilot-study
#20
Morteza Safi, Fariba Bayat, Zahra Ahmadi, Masood Shekarchizadeh, Isa Khaheshi, Mohammadreza Naderian
BACKGROUND: The change in the level of NT-Pro-BNP (N-terminal Pro-Brain Natriuretic Peptide) is now considered as a reflection of the hemodynamic alterations and its circulatory reductions reported early after successful PTMC (percutaneous transvenous mitral commissurotomy). The present study aims to assess the change in the level of NT-Pro BNP following PTMC in patients with mitral stenosis and also to determine the association between circulatory NT-Pro BNP reduction and post-PTMC echocardiography parameters...
January 18, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
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