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https://www.readbyqxmd.com/read/28316078/5-ht3a-driven-gfp-delineates-gustatory-fibers-innervating-sour-responsive-taste-cells-a-labeled-line-for-sour-taste
#1
J M Stratford, E D Larson, R Yang, E Salcedo, T E Finger
Taste buds contain multiple cell types with each type expressing receptors and transduction components for a subset of taste qualities. The sour sensing cells, Type III cells, release serotonin (5-HT) in response to the presence of sour (acidic) tastants and this released 5-HT activates 5-HT3 receptors on the gustatory nerves. We show here, using 5-HT3A GFP mice, that 5-HT3 -expressing nerve fibers preferentially contact and receive synaptic contact from Type III taste cells. Further, these 5-HT3 -expressing nerve fibers terminate in a restricted central-lateral portion of the nucleus of the solitary tract (nTS) - the same area that shows increased c-Fos expression upon presentation of a sour tastant (30 mM citric acid)...
March 17, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28306338/the-epidemiology-of-childhood-salmonella-infections-in-alberta-canada
#2
Kate E Faulder, Kimberley Simmonds, Joan L Robinson
OBJECTIVES: The objectives were to describe the incidence, demographics, laboratory findings, and suspected sources of childhood Salmonella infections in Alberta, Canada, with a focus on preventable cases. METHODS: Data from Notifiable Disease Reports for children with nontyphoidal salmonellosis (NTS) or typhoid/paratyphoid fever from 2007 through 2015 were analyzed. RESULTS: NTS was detected from 2285 children. Bacteremia was documented in 55 cases (2...
March 17, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28302440/kidney-allograft-pyelonephritis-caused-by-salmonella-enterica-serovar-schwarzengrund
#3
Kenta Ito, Haruomi Nishio, Yuji Iwatani, Ryo Yamada, Takao Okawa, Takumi Yamamoto, Masaaki Murakami, Yoko Matsuo, Ken Matsuo, Satoshi Tanaka, Kiyoshi Mori, Noriko Mori
Kidney transplant recipients (KTRs) taking immunosuppressive drugs have a 20-fold greater risk of nontyphoidal Salmonella (NTS) infection than the healthy adult population. Among KTRs, the urinary tract is the most common site of infection. However, few cases of urinary tract infection caused by NTS have been documented in KTRs, and only one in Japan. Furthermore, it frequently induces acute allograft rejection with high mortality. Salmonella enterica subsp. enterica serovar Schwarzengrund (S. Schwarzengrund) is now among the more common Salmonella serovars isolated in Japan and is likely to be invasive...
March 13, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28302085/adaptation-of-non-technical-skills-behavioural-markers-for-delivery-room-simulation
#4
Fabrizio Bracco, Michele Masini, Gabriele De Tonetti, Francesca Brogioni, Arianna Amidani, Sara Monichino, Alessandra Maltoni, Andrea Dato, Claudia Grattarola, Massimo Cordone, Giancarlo Torre, Claudio Launo, Carlo Chiorri, Danilo Celleno
BACKGROUND: Simulation in healthcare has proved to be a useful method in improving skills and increasing the safety of clinical operations. The debriefing session, after the simulated scenario, is the core of the simulation, since it allows participants to integrate the experience with the theoretical frameworks and the procedural guidelines. There is consistent evidence for the relevance of non-technical skills (NTS) for the safe and efficient accomplishment of operations. However, the observation, assessment and feedback on these skills is particularly complex, because the process needs expert observers and the feedback is often provided in judgmental and ineffective ways...
March 17, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28300619/brain-neurotransmitters-in-an-animal-model-with-postpartum-depressive-like-behavior
#5
Y Avraham, Y Hants, L Vorobeiv, M Premishlano, Wiessam Abu Ahmad, D Mankuta, E Galun, S Arbel-Alon
Post-Partum Depression (PPD) occurs in 15% of pregnancies and its patho-physiology is not known. We studied female BALB/c ("depressive") and C57BL/6 (control) mice as a model for PPD and assessed their behavior and correlates with brain neurotransmitters (NTs) - norepinephrine, dopamine, serotonin and intermediates, during the pre-pregnancy (PREP), pregnancy (PREG) and post-Partum (PP) periods. Depressive-like behavior was evaluated by the Open Field (OFT), Tail Suspension (TST) and Forced Swim (FST) tests...
March 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28298891/white-matter-deterioration-may-foreshadow-impairment-of-emotional-valence-determination-in-early-stage-dementia-of-the-alzheimer-type
#6
Ravi Rajmohan, Ronald C Anderson, Dan Fang, Austin G Meyer, Pavis Laengvejkal, Parunyou Julayanont, Greg Hannabas, Kitten Linton, John Culberson, Hafiz M R Khan, John De Toledo, P Hemachandra Reddy, Michael O'Boyle
In Alzheimer Disease (AD), non-verbal skills often remain intact for far longer than verbally mediated processes. Four (1 female, 3 males) participants with early-stage Clinically Diagnosed Dementia of the Alzheimer Type (CDDAT) and eight neurotypicals (NTs; 4 females, 4 males) completed the emotional valence determination test (EVDT) while undergoing BOLD functional magnetic resonance imaging (fMRI). We expected CDDAT participants to perform just as well as NTs on the EVDT, and to display increased activity within the bilateral amygdala and right anterior cingulate cortex (r-ACC)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28294695/operating-room-team-training-with-simulation-a-systematic-review
#7
Jamie M Robertson, Roger D Dias, Steven Yule, Douglas S Smink
INTRODUCTION: Nontechnical skills (NTS) such as teamwork and communication play an important role in preventing adverse outcomes in the operating room (OR). Simulation-based OR team training focused on these skills provides an environment where team members can learn with and from one another. We sought to conduct a systematic review to identify simulation-based approaches to NTS training for surgical teams. MATERIALS AND METHODS: We conducted a systematic search of PubMed, ERIC, and the Cochrane Database using keywords and MeSH terms for studies describing simulation-based training for OR teams, including members from surgery, anesthesia, and nursing in September 2016...
March 15, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28292881/evidence-for-a-histaminergic-input-from-the-ventral-tuberomammillary-nucleus-to-the-solitary-tract-nucleus-involved-in-arterial-pressure-regulation
#8
Ko Yamanaka, Sabine S Gouraud, Miwa Takagishi, Akira Kohsaka, Masanobu Maeda, Hidefumi Waki
The tuberomammillary nucleus (TMN) of the posterior hypothalamus has a high density of histaminergic neurons, the projection fibers of which are present in many areas of the brain, including the nucleus tractus solitarius (NTS), which controls arterial pressure (AP). In this study, we investigated whether the TMN-NTS pathway is involved in central cardiovascular regulation. Bicuculline, a gamma-aminobutyric acid type A (GABAA) receptor antagonist, was microinjected into the ventral TMN of anesthetized rats and its effects on AP and heart rate (HR) were observed...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28289460/the-evaluation-of-mrsa-surveillance-cultures-by-the-number-and-combinations-of-anatomical-sites
#9
Irena Grmek Kosnik, Alenka Storman, Ziva Petrovic, Slavica Robnik, Urska Dermota, Tjasa Zohar Cretnik
INTRODUCTION: The identification of patients infected and/or colonised by methicillin resistant Staphylococcus aureus (MRSA) is necessary for the timely introduction of measures for infection control. We compared the diagnostic efficacy of combinations of MRSA surveillance swabs routinely taken by health institutions in the country. METHODS: All surveillance samples, which were sent for a microbiological analysis to detect MRSA with the culture method in 2014, in the three departments for medical microbiology of the National Laboratory for Health, Environment and Food, were included in this study...
March 1, 2017: Zdravstveno Varstvo
https://www.readbyqxmd.com/read/28279754/estrogen-receptors-er%C3%AE-and-er%C3%AE-participation-in-hypothalamus-pituitary-adrenal-axis-activation-by-hemorrhagic-stress
#10
Luana Maria Silva Alves, Procópio Cleber Gama de Barcellos Filho, Celso Rodrigues Franci
The sympato-adrenal-system and hypothalamus-pituitary-adrenal (HPA) axis are anatomically and functionally connected with participation of several brain areas that express estrogen receptors (ERα and ERβ). We assessed the neuronal activity of these areas for FOS expression and the action of PPT (ERα agonist) or DPN (ERβ agonist) in HPA axis activity during hemorrhagic stress. Ovariectomized Wistar rats treated with vehicle (DMSO) or ER agonists were catheterized for blood collection. Animals received (control) or not (hemorrhagic) immediate reposition with the same volume of saline...
March 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28276653/the-building-of-the-neocortex-with-non-hyperpolarizing-neurotransmitters
#11
REVIEW
M Ascenzi, G Bony
The development of the neocortex requires the synergic action of several secreted molecules to achieve the right amount of proliferation, differentiation and migration of neural cells. Neurons are well known to release neurotransmitters (NTs) in adult and a growing body of evidences describes the presence of NTs already in the embryonic brain, long before the generation of synapses. NTs are classified as inhibitory or excitatory based on the physiological responses of the target neuron. However, this view is challenged by the fact that glycine and GABA NTs are excitatory during development...
March 9, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28274920/h2o2-augments-cytosolic-calcium-in-nucleus-tractus-solitarii-neurons-via-multiple-voltage-gated-calcium-channels
#12
Tim D Ostrowski, Heather A Dantzler, Luis Polo-Parada, David D Kline
Reactive oxygen species (ROS) play a profound role in cardiorespiratory function under normal physiological conditions and disease states. ROS can influence neuronal activity by altering various ion channels and transporters. Within the nucleus tractus solitarii (nTS), a vital brainstem area for cardiorespiratory control, hydrogen peroxide (H2O2) induces sustained hyperexcitability following an initial depression of neuronal activity. The mechanism(s) associated with the delayed hyperexcitability are unknown...
March 8, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28270593/reduced-responses-to-glutamate-receptor-agonists-follow-loss-of-astrocytes-and-astroglial-glutamate-markers-in-the-nucleus-tractus-solitarii
#13
William T Talman, Deidre Nitschke Dragon, Li-Hsien Lin
Saporin (SAP) or SAP conjugates injected into the nucleus tractus solitarii (NTS) of rats kill astrocytes. When injected in its unconjugated form, SAP produces no demonstrable loss of or damage to local neurons. However bilateral injections of SAP significantly attenuate responses to activation of baroreceptor reflexes that are mediated by transmission of signals through glutamate receptors in the NTS We tested the hypothesis that SAP would reduce cardiovascular responses to activation of NTS glutamate receptors despite its recognized ability to spare local neurons while killing local astrocytes...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28261089/sex-and-age-differences-in-motion-sickness-in-rats-the-correlation-with-blood-hormone-responses-and-neuronal-activation-in-the-vestibular-and-autonomic-nuclei
#14
Wei Zhou, Junqin Wang, Leilei Pan, Ruirui Qi, Peng Liu, Jiluo Liu, Yiling Cai
Many studies have demonstrated sex and age differences in motion sickness, but the underlying physiological basis is still in controversy. In the present study, we tried to investigate the potential correlates of endocrine and/or neuronal activity with sex and age differences in rats with motion sickness. LiCl-induced nausea symptom was evaluated by conditioned gaping. Motion sickness was assessed by measurement of autonomic responses (i.e., conditioned gaping and defecation responses), motor impairments (i...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28260140/complete-nucleotide-sequences-of-m-and-l-rnas-from-a-new-pepper-infecting-tospovirus-pepper-chlorotic-spot-virus
#15
Kuo-Shiou Huang, Chia-Hsing Tai, Ying-Huey Cheng, Shu-Hui Lin, Tsung-Chi Chen, Fuh-Jyh Jan
Pepper chlorotic spot virus (PCSV), newly found in Taiwan, was identified as a new tospovirus based on the molecular characterization of its S RNA. In this study, the complete M and L RNA sequences of PCSV were determined. The M RNA has 4795 nucleotides (nts), encoding the NSm protein of 311 aa (34.5 kDa) in the viral (v) strand and the glycoprotein precursor (Gn/Gc) of 1122 aa (127.6 kDa) in the viral complementary (vc) strand. The L RNA has 8859 nts, encoding the RNA-dependent RNA polymerase (RdRp) of 2873 aa (330...
March 4, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28255412/circle-nephrostomy-tube-revisited
#16
Yasser A Noureldin, Christian Diab, David Valenti, Sero Andonian
INTRODUCTION: There are few options for patients requiring chronic urinary drainage using nephrostomy tubes. Although circle nephrostomy tube (CNT) was invented in 1954, it is rarely used. Its advantages include longer indwelling time such that it is changed semi-annually when compared with the standard nephrostomy tube (SNT), which is changed monthly. However, there are no studies comparing indwelling times and costs with these two tubes. The aim of the present study was to compare CNT with SNT in terms of frequency of tube changes, reasons for earlier tube changes, and associated costs...
July 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28254195/bdnf-and-ampa-receptors-in-the-cnts-modulate-the-hyperglycemic-reflex-after-local-carotid-body-nacn-stimulation
#17
R Cuéllar, S Montero, S Luquín, J García-Estrada, V Melnikov, A Virgen-Ortiz, M Lemus, M Pineda-Lemus, E de Álvarez-Buylla
The application of sodium cyanide (NaCN) to the carotid body receptors (CBR) (CBR stimulation) induces rapid blood hyperglycemia and an increase in brain glucose retention. The commissural nucleus tractus solitarius (cNTS) is an essential relay nucleus in this hyperglycemic reflex; it receives glutamatergic afferents (that also release brain derived neurotrophic factor, BDNF) from the nodose-petrosal ganglia that relays CBR information. Previous work showed that AMPA in NTS blocks hyperglycemia and brain glucose retention after CBR stimulation...
February 3, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28251044/chemically-selective-alternatives-to-photoferroelectrics-for-polarization-enhanced-photocatalysis-the-untapped-potential-of-hybrid-inorganic-nanotubes
#18
Joshua D Elliott, Emiliano Poli, Ivan Scivetti, Laura E Ratcliff, Lampros Andrinopoulos, Jacek Dziedzic, Nicholas D M Hine, Arash A Mostofi, Chris-Kriton Skylaris, Peter D Haynes, Gilberto Teobaldi
Linear-scaling density functional theory simulation of methylated imogolite nanotubes (NTs) elucidates the interplay between wall-polarization, bands separation, charge-transfer excitation, and tunable electrostatics inside and outside the NT-cavity. The results suggest that integration of polarization-enhanced selective photocatalysis and chemical separation into one overall dipole-free material should be possible. Strategies are proposed to increase the NT polarization for maximally enhanced electron-hole separation...
February 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28250153/microinjection-of-kynurenic-acid-in-the-rostral-nucleus-of-the-tractus-solitarius-disrupts-spatiotemporal-aspects-of-mechanically-induced-tracheobronchial-cough
#19
Ivan Poliacek, Teresa Pitts, Melanie J Rose, Paul W Davenport, Michal Simera, Marcel Veternik, Zuzana Kotmanova, Donald C Bolser
The importance of neurons in the solitary tract nucleus (NTS) in the production of coughing was tested by microinjections of the non-specific glutamate receptor antagonist kynurenic acid (kyn; 100 mM in artificial cerebrospinal fluid) in 15 adult spontaneously breathing anesthetized cats. Repetitive coughing was elicited by mechanical stimulation of the intrathoracic airway. Electromyograms (EMG) were recorded from inspiratory parasternal and expiratory transversus abdominis muscles (ABD). Bilateral microinjections of kyn into the NTS rostral to obex (55±4 nl total in two locations; n=6 or 110±4 nl total in four locations; n=5), primarily the ventrolateral subnucleus, reduced cough number and expiratory cough efforts (amplitudes of ABD EMG and maxima of esophageal pressure) compared to control...
March 1, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28249783/diet-driven-microbiota-dysbiosis-is-associated-with-vagal-remodeling-and-obesity
#20
Tanusree Sen, Carolina R Cawthon, Benjamin Thomas Ihde, Andras Hajnal, Patricia M DiLorenzo, Claire B de La Serre, Krzysztof Czaja
Obesity is one of the major health issues in the United States. Consumption of diets rich in energy, notably from fats and sugars (high-fat/high-sugar diet: HF/HSD) is linked to the development of obesity and a popular dietary approach for weight loss is to reduce fat intake. Obesity research traditionally uses low and high fat diets and there has been limited investigation of the potential detrimental effects of a low-fat/high-sugar diet (LF/HSD) on body fat accumulation and health. Therefore, in the present study, we investigated the effects of HF/HSD and LF/HSD on microbiota composition, gut inflammation, gut-brain vagal communication and body fat accumulation...
February 26, 2017: Physiology & Behavior
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