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https://www.readbyqxmd.com/read/28716712/effects-of-chemogenetic-excitation-or-inhibition-of-the-ventrolateral-periaqueductal-gray-on-the-acquisition-and-extinction-of-pavlovian-fear-conditioning
#1
Carolyn Arico, Elena E Bagley, Pascal Carrive, Neda Assareh, Gavan P McNally
The midbrain periaqueductal gray (PAG) has been implicated in the generation and transmission of a prediction error signal that instructs amygdala-based fear and extinction learning. However, the PAG also plays a key role in the expression of conditioned fear responses. The evidence for a role of the PAG in fear learning and extinction learning has been obtained almost exclusively using PAG-dependent fear responses. It is less clear whether the PAG regulates fear learning when other measures of learned fear are used...
July 14, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28711601/catecholaminergic-a1-c1-neurons-contribute-to-the-maintenance-of-upper-airway-muscle-tone-but-may-not-participate-in-nrem-sleep-related-depression-of-these-muscles
#2
Irma Rukhadze, Nancy J Carballo, Sathyajit S Bandaru, Atul Malhotra, Patrick M Fuller, Victor B Fenik
Neural mechanisms of obstructive sleep apnea, a common sleep-related breathing disorder, are incompletely understood. Hypoglossal motoneurons, which provide tonic and inspiratory activation of genioglossus (GG) muscle (a major upper airway dilator), receive catecholaminergic input from medullary A1/C1 neurons. We aimed to determine the contribution of A1/C1 neurons in control of GG muscle during sleep and wakefulness. To do so, we placed injections of a viral vector into DBH-cre mice to selectively express the hMD4i inhibitory chemoreceptors in A1/C1 neurons...
July 12, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28693592/bone-metabolism-and-inflammatory-characteristics-in-14-cases-of-chronic-nonbacterial-osteomyelitis
#3
Yurika Ata, Yutaka Inaba, Hyonmin Choe, Naomi Kobayashi, Jiro Machida, Naoyuki Nakamura, Tomoyuki Saito
BACKGROUND: Chronic nonbacterial osteomyelitis (CNO) is a multifocal autoinflammatory disease that often impairs daily life in children. This study aimed to investigate the bone metabolic and inflammatory characteristics of patients with CNO, and to assess the differences between responders and nonresponders to conservative treatment. METHODS: We investigated the clinical symptoms; laboratory data including inflammatory and bone metabolic biomarkers; and imaging findings from plain radiography, magnetic resonance imaging (MRI), fluorodeoxyglucose-positron emission tomography (FDG-PET), and dual-energy x-ray absorption (DEXA) in 14 patients with CNO...
July 11, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28692524/monofocal-chronic-nonbacterial-osteomyelitis-in-the-mandible-accompanied-with-mucocutaneous-disease
#4
Yiwen Wang, Chi Yang, Weijie Zhang, Yingli Lu, Wenbin Wei, Zixiang Han, Minjie Chen
Chronic nonbacterial osteomyelitis (CNO) is a bone disease with nonbacteria osteitis of unknown etiology. Symptoms, including pain, swelling, fever, etc, always result in misdiagnosis and wrong therapy. This study aims to introduce the clinical features and the therapy of patients with CNO accompanied with mucocutaneous disease. The authors retrospectively reviewed the patients who presented to our hospital from 2000 to 2016, the final sample including 3 patients with CNO accompanied with mucocutaneous disease, who presented repeated severe pain of bone, swelling, tenderness, and fever during attack stage with no evidence of bacterial infections...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28685269/the-molecular-pathophysiology-of-chronic-non-bacterial-osteomyelitis-cno-a-systematic-review
#5
REVIEW
Sigrun Ruth Hofmann, Franz Kapplusch, Katrin Mäbert, Christian Michael Hedrich
Chronic non-bacterial osteomyelitis (CNO) belongs to the growing spectrum of autoinflammatory diseases and primarily affects the skeletal system. Peak onset ranges between 7 and 12 years of age. The clinical spectrum of CNO covers sometimes asymptomatic inflammation of single bones at the one end and chronically active or recurrent multifocal osteitis at the other.Despite the intense scientific efforts, the exact molecular mechanisms of CNO remain unknown. Recent data suggest CNO as a genetically complex disorder with dysregulated TLR4/MAPK/inflammasome signaling cascades resulting in an imbalance between pro- and anti-inflammatory cytokine expression, leading to osteoclast activation and osteolytic lesions...
December 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/28684394/tg-th-cre-fi172gsat-th-cre-defines-neurons-that-are-required-for-full-hypercapnic-and-hypoxic-reflexes
#6
Jenny J Sun, Russell S Ray
The catecholaminergic system has been implicated in many facets of breathing control and offers an important target to better comprehend the underlying etiologies of both developmental and adult respiratory pathophysiologies. Here we used a noninvasive DREADD based pharmaco-genetic approach to acutely perturb Tg(Th-Cre)FI172Gsat (Th-Cre) defined neurons in awake and unrestrained mice in an attempt to characterize catecholaminergic function in breathing. We report that clozapine-N-oxide (CNO)-DREADD mediated inhibition of Th-Cre defined neurons results in blunted ventilatory responses under respiratory challenge...
July 6, 2017: Biology Open
https://www.readbyqxmd.com/read/28680103/chemogenetic-silencing-of-gabaergic-dorsal-horn-interneurons-induces-morphine-resistant-spontaneous-nocifensive-behaviours
#7
Keisuke Koga, Kensho Kanehisa, Yuta Kohro, Miho Shiratori-Hayashi, Hidetoshi Tozaki-Saitoh, Kazuhide Inoue, Hidemasa Furue, Makoto Tsuda
Inhibitory interneurons in the spinal dorsal horn (SDH) are crucial for processing somatosensory information originating in the periphery. However, the effects of the acute and selective inactivation of GABAergic SDH interneurons on pain processing are not fully understood. In this study, we used designer receptors exclusively activated by designer drugs (DREADD) technology and vesicular GABA transporter-Cre (Vgat-Cre) mice to selectively express a modified human muscarinic Gi protein-coupled receptor (hM4Di) in Vgat-Cre (+) GABAergic SDH interneurons in the fourth lumbar segment...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28677202/dreadd-induced-silencing-of-the-medial-amygdala-reduces-the-preference-for-male-pheromones-and-the-expression-of-lordosis-in-estrous-female-mice
#8
Elizabeth A McCarthy, Arman Maqsudlu, Matthew Bass, Sofia Georghiou, James A Cherry, Michael J Baum
Sexually naïve estrous female mice seek out male urinary pheromones; however, they initially display little receptive (lordosis) behavior in response to male mounts. Vomeronasal - accessory olfactory bulb inputs to the medial amygdala (Me) regulate courtship in female rodents. We used a reversible inhibitory chemogenetic technique (Designer Receptors Exclusively Activated by Designer Drugs; DREADDs) to assess the contribution of Me signaling to females' preference for male pheromones and improvement in receptivity normally seen with repeated testing...
July 5, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28675846/chronic-nonbacterial-osteomyelitis-involving-the-mandible-a-case-report
#9
Gabriele Bocchialini, Luca Ferrari, Manuela Rossini, Anna Bozzola, Dante Burlini
INTRODUCTION: Chronic nonbacterial osteomyelitis (CNO) or chronic recurrent multifocal osteomyelitis (CRMO), is a very rare condition of unknown aetiology. It is characterised by focal sterile inflammatory disease with prolonged, self-limiting and recurrent episodes. CASE PRESENTATION: We report the discovery of this very rare disease following a mandibular abscess in a 10-year-old female. We initially focus on the difference between the preoperative orthopantomography and the maxillofacial computed tomography and magnetic resonance images obtained, and then on the improvement of strategies for correct diagnosis and treatment of this disease...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28673934/activation-of-sf1-neurons-in-the-ventromedial-hypothalamus-by-dreadd-technology-increases-insulin-sensitivity-in-peripheral-tissues
#10
Eulalia A Coutinho, Shiki Okamoto, Ayako Wendy Ishikawa, Shigefumi Yokota, Nobuhiro Wada, Takahiro Hirabayashi, Kumiko Saito, Tatsuya Sato, Kazuyo Takagi, Chen-Chi Wang, Kenta Kobayashi, Yoshihiro Ogawa, Seiji Shioda, Yumiko Yoshimura, Yasuhiko Minokoshi
The ventromedial hypothalamus (VMH) regulates glucose and energy metabolism in mammals. Optogenetic stimulation of VMH neurons that express steroidogenic factor 1 (SF1) induces hyperglycemia. However, leptin acting via the VMH stimulates whole-body glucose utilization and insulin sensitivity in some peripheral tissues, whereas this effect of leptin appears to be mediated by SF1 neurons. We examined the effects of activation of SF1 neurons with DREADD (designer receptors exclusively activated by designer drugs) technology...
July 3, 2017: Diabetes
https://www.readbyqxmd.com/read/28665110/curvature-induced-metal-support-interaction-of-an-islands-by-islands-composite-of-platinum-catalyst-and-carbon-nano-onion-for-durable-oxygen-reduction
#11
Juchan Yang, Su Hwan Kim, Sang Kyu Kwak, Hyun-Kon Song
Geometry of carbon supports significantly affected electrochemical durability of Pt/C (platinum electrocatalyst supported by carbon) for oxygen reduction reaction (ORR). Carbon nano-onion (CNO) was used as the support, which is characterized by its nanosize (similar to Pt size) and high curvature. Superior ORR durability was guaranteed by Pt/CNO due to (1) its islands-by-islands configuration to isolate each Pt nanoparticle from its neighbors by CNO particles; (2) highly tortuous void structure of the configuration to suppress Ostwald ripening; and (3) the curvature-induced strong interaction between CNO and Pt...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28664926/memory-retention-involves-the-ventrolateral-orbitofrontal-cortex-comparison-with-the-basolateral-amygdala
#12
K S Zimmermann, C Li, D G Rainnie, K J Ressler, S L Gourley
The orbitofrontal cortex (OFC) is thought to link stimuli and actions with anticipated outcomes in order to sustain flexible behavior in an ever-changing environment. How it retains these associations to guide future behavior is less well-defined. Here we focused on one subregion of this heterogeneous structure, the ventrolateral OFC (VLO). CaMKII-driven inhibitory Gi-coupled Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) were infused and subsequently activated by their ligand Clozapine-N-oxide (CNO) in conjunction with fear extinction training (a form of aversive conditioning) and response-outcome conditioning (a form of appetitive conditioning)...
June 30, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28639397/ovarian-polarity-and-cell-shape-determination-by-btk29a-in-drosophila
#13
Noriko Hamada-Kawaguchi, Daisuke Yamamoto
Drosophila Btk29A is a Tec family nonreceptor tyrosine kinase, the ortholog of which causes X-linked agammagluburinemia in humans when mutant. In Btk29A(ficP) mutant ovaries, multiple defects are observed: extra polar cells form ectopically; osk mRNA fails to accumulate posteriorly in mature oocytes; the shape and alignment of follicle cells are grossly distorted. All these phenotypes are rescued by selectively overexpressing the type 2 isoform of wild-type Btk29A in follicle cells. Expression of certain proteins enriched in adherens junctions is markedly affected in Btk29A(ficP) mutants; the anterior-posterior gradient normally observed in the expression of DE-Cadherin and Armadillo are lost and Canoe is sequestered from adherens junctions...
June 22, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28620059/anakinra-in-a-cohort-of-children-with-chronic-nonbacterial-osteomyelitis
#14
Manuela Pardeo, Denise Pires Marafon, Virginia Messia, Maria Carmen Garganese, Fabrizio De Benedetti, Antonella Insalaco
OBJECTIVE: To report efficacy and safety in patients with chronic nonbacterial osteomyelitis (CNO) unresponsive to nonsteroidal antiinflammatory drugs (NSAID) and bisphosphonates and/or glucocorticoids treated with anakinra. METHODS: Nine patients (6 females) with refractory CNO were treated with anakinra for at least 6 months. We recorded, at baseline and after 6 months of treatment, clinical and laboratory features, and number and distribution of bone lesions detected by 99mTc-MDP bone scintigraphy...
June 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28575736/collective-neurodynamic-optimization-for-economic-emission-dispatch-problem-considering-valve-point-effect-in-microgrid
#15
Tiancai Wang, Xing He, Tingwen Huang, Chuandong Li, Wei Zhang
The economic emission dispatch (EED) problem aims to control generation cost and reduce the impact of waste gas on the environment. It has multiple constraints and nonconvex objectives. To solve it, the collective neurodynamic optimization (CNO) method, which combines heuristic approach and projection neural network (PNN), is attempted to optimize scheduling of an electrical microgrid with ten thermal generators and minimize the plus of generation and emission cost. As the objective function has non-derivative points considering valve point effect (VPE), differential inclusion approach is employed in the PNN model introduced to deal with them...
May 15, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28574891/does-a-ceo-s-departure-trigger-a-crisis-for-a-cno
#16
Phyllis Wright
For chief nursing officers, volatility has become an expected characteristic of the professional landscape. Recent studies indicate that this volatility is likely to continue for at least the next decade. For chief nursing officers caught in an organizational crisis, the thought of leaving the leadership ranks triggers professional angst and a range of personal emotion. This article examines the most common reasons chief nursing officers leave their positions and how they can take steps to rebound. It also explores the tools and resources that can positively affect these monumental transitions, whether voluntary or involuntary...
July 2017: Nursing Administration Quarterly
https://www.readbyqxmd.com/read/28549561/lateral-thalamic-control-of-nociceptive-response-after-whisker-pad-injection-of-varicella-zoster-virus
#17
Phillip R Kramer, Crystal Stinson, Mikhail Umorin, Mohong Deng, Mahesh Rao, Larry L Bellinger, Michael B Yee, Paul R Kinchington
Pain is a common complication of herpes zoster (HZ) infection which results from reactivation of a latent varicella zoster virus (VZV). A third of HZ patients' progress to a chronic pain state known as post herpetic neuralgia (PHN), and about a quarter of these patients' have orofacial pain. The mechanisms controlling the pain responses are not understood. Studies suggest central pathways involving the thalamus could control pain related to HZ, and studies in our lab suggest (VGAT) in the lateral thalamus influences orofacial pain...
July 25, 2017: Neuroscience
https://www.readbyqxmd.com/read/28509720/effects-of-rn-age-and-experience-on-transformational-leadership-practices
#18
COMPARATIVE STUDY
Susan Herman, Mary Gish, Ruth Rosenblum, Michael Herman
OBJECTIVE: This study reported the evolution of transformational leadership (TL) practices and behaviors across years of age, management experience, and professional nursing practice within a professional nursing leadership organization. BACKGROUND: Recent studies of CNO TL found valuations peak near age 60 years. This study reported on a wider range of management positions, correlating years of RN practice and management experience and age to TL metrics. METHOD: This study used Kouzes and Posner's Leadership Practices Inventory-Self-Assessment (LPI-S) to survey a nursing leadership organization, the Association of California Nurse Leaders (ACNL)...
June 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28495999/%C3%AE-arrestin-mediated-regulation-of-the-human-ether-a-go-go-related-gene-herg-potassium-channel
#19
Matthew G Sangoi, Shawn M Lamothe, Jun Guo, Tonghua Yang, Wentao Li, Ellen G Avery, John T Fisher, Shetuan Zhang
The rapidly activating delayed rectifier K(+) channel (IKr) is encoded by the human ether-a-go-go-related gene (hERG), which is important for the repolarization of the cardiac action potential. Mutations in hERG or drugs can impair the function or decrease the expression level of hERG channels, leading to long QT syndrome (LQTS). Thus, it is important to understand hERG channel trafficking and its regulation. For this purpose, G protein-coupled receptors (GPCRs), which regulate a vast array of cellular processes, represent a useful route...
May 11, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28481844/transformational-leadership-the-chief-nursing-officer-role-in-leading-quality-and-patient-safety
#20
Pam Jones, Shea Polancich, Robin Steaban, Nancye Feistritzer, Terri Poe
This department column highlights leadership perspectives of quality and patient safety practice. The purpose of this article is to provide strategic direction for transformational quality and safety leadership as the chief nursing officer (CNO) within the academic medical center environment.
May 2017: Journal for Healthcare Quality: Official Publication of the National Association for Healthcare Quality
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