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https://www.readbyqxmd.com/read/29793033/expression-of-anabaena-sensory-rhodopsin-is-influenced-by-different-codons-of-seven-residues-at-the-n-terminal-region
#1
Otgontuya Tsogbadrakh, Ah Reum Choi, Kwang-Hwan Jung
Microbial rhodopsins are well-known seven-transmembrane proteins that have been extensively studied for their structure and function. These retinal-binding proteins can be divided into two types. Type I is microbial rhodopsin, and type II (visual pigment) is expressed mostly in mammalian eyes. The two primary functions of type I rhodopsin are ion pumping activity and sensory transduction. Anabaena sensory rhodopsin (ASR) is a microbial rhodopsin with a specific function of photosensory transduction. ASR is expressed at moderate levels in Escherichia coli, but its expression level is lower compared to the general green light absorbing proteorhodopsin (GPR)...
May 21, 2018: Protein Expression and Purification
https://www.readbyqxmd.com/read/29792892/beef-quality-labels-a-combination-of-sensory-acceptance-test-stated-willingness-to-pay-and-choice-based-conjoint-analysis
#2
Stephan G H Meyerding, Maria Gentz, Brianne Altmann, Lisa Meier-Dinkel
Consumer perspectives of beef quality are complex, leading to a market that is increasingly differentiating. Thus, ongoing monitoring and assessment of changes in consumer perspectives is essential to identify changing market conditions. Often only credence and search characteristics are evaluated in consumer studies; therefore the object of the present study is to examine consumer preferences and perceptions towards beef steaks, also including experience characteristics, using a mixed methods approach. For this reason, 55 consumers participated in an experiment in Germany, including a sensory acceptance test, stated willingness to pay, and choice-based conjoint analysis (CBCA)...
May 21, 2018: Appetite
https://www.readbyqxmd.com/read/29792886/t-grasp-a-targeted-grasp-for-assessing-neuronal-connectivity
#3
Harold K Shearin, Casey D Quinn, Robert D Mackin, Ian S Macdonald, R Steven Stowers
BACKGROUND: Understanding how behaviors are generated by neural circuits requires knowledge of the synaptic connections between the composite neurons. Methods for mapping synaptic connections, such as electron microscopy and paired recordings, are labor intensive and alternative methods are thus desirable. NEW METHOD: Development of a targeted GFP Reconstitution Across Synaptic Partners(GRASP) method, t-GRASP, for assessing neural connectivity is described. RESULTS: Numerous different pre-synaptic and post-synaptic/dendritic proteins were tested for enhancing the specificity of GRASP signal to synaptic regions...
May 21, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29792305/sensory-analysis-of-characterising-flavours-evaluating-tobacco-product-odours-using-an-expert-panel
#4
Erna J Z Krüsemann, Marlou P Lasschuijt, C de Graaf, René A de Wijk, Pieter H Punter, Loes van Tiel, Johannes W J M Cremers, Suzanne van de Nobelen, Sanne Boesveldt, Reinskje Talhout
OBJECTIVES: Tobacco flavours are an important regulatory concept in several jurisdictions, for example in the USA, Canada and Europe. The European Tobacco Products Directive 2014/40/EU prohibits cigarettes and roll-your-own tobacco having a characterising flavour. This directive defines characterising flavour as 'a clearly noticeable smell or taste other than one of tobacco […]'. To distinguish between products with and without a characterising flavour, we trained an expert panel to identify characterising flavours by smelling...
May 23, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29791860/the-olfactory-logic-behind-fruit-odor-preferences-in-larval-and-adult-drosophila
#5
Hany K M Dweck, Shimaa A M Ebrahim, Tom Retzke, Veit Grabe, Jerrit Weißflog, Ales Svatoš, Bill S Hansson, Markus Knaden
Despite the comprehensive knowledge on odor coding, our understanding of the relationship between sensory input and behavioral output in Drosophila remains weak. Here, we measure the behavioral responses generated by larval and adult flies in response to 34 fruit odors and find that larval preference for fruit odors differs from that of adult flies. Next, we provide a functional analysis of the full repertoire of the peripheral olfactory system using the same comprehensive stimulus spectrum. We find that 90% and 53% of larval and adult olfactory receptors tested here, respectively, are involved in evaluating these fruit odors...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29790404/clinical-and-neurophysiological-changes-after-targeted-intrathecal-injections-of-bone-marrow-stem-cells-in-a-c3-tetraplegic-subject
#6
Andrea Jimena Santamaria, Francisco D Benavides, Darcy L DiFede, Aisha Khan, Marietsy V Pujol, W Dalton Dietrich, Antonio Marttos, Barth A Green, Joshua M Hare, James Guest
High-level quadriplegia is a devastating condition with limited treatment options. Bone marrow derived stem cells (BMSCs) are reported to have immunomodulatory and neurotrophic effects in spinal cord injury (SCI). We report a subject with complete C2 SCI who received 3 anatomically targeted intrathecal infusions of BMSCs under a single-patient expanded access IND. She underwent intensive physical therapy and was followed for over 2 years. At end-point, her AIS grade improved from A to B and she recovered focal pressure touch sensation over several body areas...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29789376/optogenetic-activation-of-colon-epithelium-of-the-mouse-produces-high-frequency-bursting-in-extrinsic-colon-afferents-and-engages-visceromotor-responses
#7
Payal A Makadia, Sarah A Najjar, Jami L Saloman, Peter Adelman, Bin Feng, Joseph F Margiotta, Kathryn M Albers, Brian M Davis
Epithelial cells of the colon provide a vital interface between the internal environment (lumen of the colon) and colon parenchyma. To examine epithelial-neuronal signaling at this interface, we analyzed mice in which channelrhodopsin (ChR2) was targeted to either TRPV1-positive afferents or to villin expressing colon epithelial cells. Expression of a ChR2-EYFP fusion protein was directed to either primary sensory neurons or to colon epithelial cells by crossing Ai32 mice with TRPV1-Cre or villin-Cre mice, respectively...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789090/the-giant-hand-illusion-experienced-on-a-simulator
#8
Petr Frantis, Antonin Petru
BACKGROUND: This paper discusses a special kind of a sensory illusion-the Giant Hand illusion-that was experienced during an exercise on a flight simulator equipped with a VR headset. In the first part we describe spatial disorientation and the function of the vestibular apparatus during flight and its consequences. In this part, the sensory illusion simulator used for the experiment is mentioned. In the second part we describe the simulator and test flight. In the third part we discuss data retrieved during simulator flights that are important for explaining the Giant Hand illusion...
June 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29787920/identification-and-characterization-of-chemosensory-genes-in-the-antennal-transcriptome-of-spodoptera-exigua
#9
Li-Xiao Du, Yang Liu, Jin Zhang, Xi-Wu Gao, Bing Wang, Gui-Rong Wang
Chemical senses are crucial for insect behaviors such as host preference, mate choice and oviposition site selection. Various protein families are involved in these processes, including odorant receptors (ORs), ionotropic receptors (IRs), gustatory receptors (GRs), chemosensory proteins (CSPs), odorant binding proteins (OBPs) and sensory neuron membrane proteins (SNMPs). To better understand the olfactory mechanism in Spodoptera exigua, we conducted transcriptome analysis of adult antennae and identified a total of 157 candidate chemosensory genes encoding 51 ORs, 20 IRs, 7 GRs, 32 CSPs, 45 OBPs and 2 SNMPs...
May 7, 2018: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/29784588/brain-stimulation-patterns-emulating-endogenous-thalamocortical-input-to-parvalbumin-expressing-interneurons-reduce-nociception-in-mice
#10
Yeowool Huh, Dahee Jung, Taeyoon Seo, Sukkyu Sun, Su Hyun Kim, Hyewhon Rhim, Sooyoung Chung, Chong-Hyun Kim, Youngwoo Kwon, Marom Bikson, Yong-An Chung, Jeansok J Kim, Jeiwon Cho
BACKGROUND: The bursting pattern of thalamocortical (TC) pathway dampens nociception. Whether brain stimulation mimicking endogenous patterns can engage similar sensory gating processes in the cortex and reduce nociceptive behaviors remains uninvestigated. OBJECTIVE: We investigated the role of cortical parvalbumin expressing (PV) interneurons within the TC circuit in gating nociception and their selective response to TC burst patterns. We then tested if transcranial magnetic stimulation (TMS) patterned on endogenous nociceptive TC bursting modulate nociceptive behaviors...
May 18, 2018: Brain Stimulation
https://www.readbyqxmd.com/read/29784135/cultural-adaptation-of-the-adolescent-pediatric-pain-tool-in-turkish-children-with-cancer
#11
Gülçin Özalp Gerçeker, Elif Bilsin, Şeyda Binay, Hatice Bal Yılmaz, Eufemia Jacob
PURPOSE: Pain is very common among pediatric cancers. This study aimed to assess the reliability and validity of the Turkish version of the Adolescent Pediatric Pain Tool (APPT). METHODS: In this methodological study, language validity and content validity of the words in the third section of the scale, which was administered to children with cancer, were tested using the Q-sort method. The APPT was used to measure test-retest reliability once for each of the 1st, 2nd and 3rd weeks of the chemotherapy protocols for 30 children...
June 2018: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/29783637/a-phosphatidylserine-source-of-docosahexanoic-acid-improves-neurodevelopment-and-survival-of-preterm-pigs
#12
Randal K Buddington, Victor V Chizhikov, Igor Y Iskusnykh, Helen J Sable, Jeffrey J Sable, Zade R Holloway, Tamar Blumenfeld Katzir, Marie van der Merwe, Taisiya Yakimkova, Karyl K Buddington, Yael Lifshitz, Shoshi Tessler, Ariel Gilbert
The amount, composition, and sources of nutrition support provided to preterm infants is critical for normal growth and development, and particularly for structural and functional neurodevelopment. Although omega-3 long chain polyunsaturated fatty acids (LC-PUFA), and particularly docosahexanoic acid (DHA), are considered of particular importance, results from clinical trials with preterm infants have been inconclusive because of ethical limitations and confounding variables. A translational large animal model is needed to understand the structural and functional responses to DHA...
May 18, 2018: Nutrients
https://www.readbyqxmd.com/read/29782958/changes-in-behavioural-parameters-oxidative-stress-and-neurotrophins-in-the-brain-of-adult-offspring-induced-to-an-animal-model-of-schizophrenia-the-effects-of-fa-deficient-or-fa-supplemented-diet-during-the-neurodevelopmental-phase
#13
L Canever, T G Freire, G A Mastella, L Damázio, S Gomes, I Fachim, C Michels, G Carvalho, A K Godói, B R Peterle, F F Gava, S Valvassori Sda, J Budni, J Quevedo, A I Zugno
A deficiency of maternal folic acid (FA) can compromise the function and development of the brain, and may produce a susceptibility to diseases such as schizophrenia (SZ) in the later life of offspring. The aim of this study was to evaluate the effects of both FA deficient and FA supplemented diets during gestation and lactation on behavioural parameters, the markers of oxidative stress and neurotrophic factors in adult offspring which had been subjected to an animal model of SZ. Female mother rats (Dam's) were separated into experimental maternal groups, which began receiving a special diet (food) consisting of the AIN-93 diet, a control diet, or an FA deficient diet during the periods of pregnancy and lactation...
May 18, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29782817/evolution-of-the-developmental-plasticity-and-a-coupling-between-left-mechanosensory-neuromasts-and-an-adaptive-foraging-behavior
#14
Vânia Filipa Lima Fernandes, Christian Macaspac, Louise Lu, Masato Yoshizawa
Many animal species exhibit laterality in sensation and behavioral responses, namely, the preference for using either the left or right side of the sensory system. For example, some fish use their left eye when observing social stimuli, whereas they use their right eye to observe novel objects. However, it is largely unknown whether such laterality in sensory-behavior coupling evolves during rapid adaptation processes. Here, in the Mexican tetra, Astyanax mexicanus, we investigate the laterality in the relationship between an evolved adaptive behavior, vibration attraction behavior (VAB), and its main sensors, mechanosensory neuromasts...
May 18, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29781961/-from-ear-to-trunk-mri-reveals-referral-of-pain
#15
Julia Forstenpointner, Stephan Wolff, Patrick W Stroman, Olav Jansen, Stefanie Rehm, Ralf Baron, Janne Gierthmühlen
Referred and projecting pain can be observed in acute and chronic pain states. We present the case of a 69-year-old female patient with postherpetic neuralgia (PHN) in dermatome Th2/3 who reported that touching the ipsilateral earlap (dermatome C2) would enhance pain and dynamic mechanical allodynia (DMA) in the affected Th2/3-dermatome. The aim was to investigate possible underlying mechanisms of this phenomenon using the capsaicin experimental pain sensitization model, quantitative sensory testing (QST) and functional spinal and supraspinal MRI (fMRI)...
May 16, 2018: Pain
https://www.readbyqxmd.com/read/29781957/quantitative-sensory-testing-in-patients-with-migraine-a-systemic-review-and-meta-analysis
#16
Hadas Nahman-Averbuch, Tom Shefi, Victor J Schneider, Dan Li, Lili Ding, Christopher D King, Robert C Coghill
Quantitative sensory testing (QST) is widely used to assess somatosensory function by application of controlled stimuli across a variety of modalities. The aim of the present meta-analysis is to synthesize QST results across a wide array of studies of patients with migraine to identify the QST parameters that are reliably different between patients with migraine and healthy controls. In addition, we aimed to determine whether such differences vary according to stimulus location. A comprehensive literature search (up to January 2017) was conducted, which included studies comparing QST parameters between patients with migraine and healthy controls...
May 17, 2018: Pain
https://www.readbyqxmd.com/read/29781807/word-recognition-re-thinking-prosthetic-vision-evaluation
#17
Shui'Er Han, Cheng Qiu, Kassandra R Lee, JaeHyun Jung, Eli Peli
Evaluations of vision prostheses and sensory substitution devices have frequently relied on repeated training and testing with the same small set of items. These multiple forced-choice tasks have been shown to produce above chance performance in blind patients, but it is unclear if the observed performance represents restoration of vision that transfers to novel, untrained items. Here, we tested the generalizability of the forced-choice paradigm on the discrimination of low-resolution word images. Extensive visual training was conducted with the same 10 words used in previous BrainPort tongue stimulating studies...
May 21, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29781451/comparisons-of-the-computed-tomographic-scan-and-panoramic-radiography-before-mandibular-third-molar-extraction-surgery
#18
Qian Luo, Wanglun Diao, Lan Luo, Yong Zhang
BACKGROUND Mandibular third molar extraction surgery has a postoperative complication of hypoesthesia of the lower lip and/or chin. The objective of the study was to determine if preoperative radiographic examination by panoramic radiography and computed tomography (CT) scan can predict postoperative complications of mandibular third molar extraction surgery. MATERIAL AND METHODS In total, 479 patients who had mandibular third molar extraction surgery were included in this cross-sectional study. Patients had panoramic radiographies and CT scans to determine the relationship of the tooth, the canal, and the buccolingual position...
May 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29781209/oral-phase-dysphagia-in-facial-onset-sensory-and-motor-neuronopathy
#19
Mitsuru Watanabe, Wataru Shiraishi, Ryo Yamasaki, Noriko Isobe, Motohiro Sawatsubashi, Ryuji Yasumatsu, Takashi Nakagawa, Jun-Ichi Kira
INTRODUCTION: Facial onset motor and sensory neuronopathy (FOSMN) is a rare disease whose cardinal features are initial asymmetrical facial sensory deficits followed by bulbar symptoms and spreading of sensory and motor deficits from face to scalp, neck, upper trunk, and upper extremities in a rostral-caudal direction. Although bulbar involvement is frequently observed in FOSMN, dysphagia in these patients has not been fully described. In this study, we aimed to characterize dysphagia as a prognostic factor in FOSMN by investigating our institutional case series...
May 21, 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29780422/cochlear-implantation-in-charcot-marie-tooth-disease-case-report-and-review-of-the-literature
#20
C Lane Anzalone, Sarah Nuhanovic, Amy P Olund, Matthew L Carlson
Introduction: Charcot-Marie-Tooth (CMT) disease is a peripheral hereditary neuropathy associated with motor and sensory impairment and can result in profound sensorineural hearing loss (SNHL). Currently, the role of cochlear implantation in the setting of CMT and other progressive peripheral neurodegenerative disorders is not well established. Methods: Case report and review of the English literature. Results: A 70-year-old male with CMT was referred for evaluation of progressive asymmetric SNHL and reported a 15-year duration of deafness involving the left ear...
2018: Case Reports in Medicine
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