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https://www.readbyqxmd.com/read/28089640/catecholamines-are-produced-by-ascidian-immune-cells-the-involvement-of-pka-and-pkc-in-the-adrenergic-signaling-pathway
#1
Andressa de Abreu Mello, Jéssica Fernandes de Souza, Rodrigo Nunes da Fonseca, Silvana Allodi, Cintia Monteiro de Barros
The stress response is a complex mechanism, which includes changes in the immune system to enable organisms to maintain homeostasis. The neurohormones dopamine, noradrenaline (NA) and adrenalin are responsible for the physiological modulations that occur during acute stress. In the present study, we analyzed the effects of NA on the immune system specific to nitric-oxide (NO) production by subpopulations of immune cells (hemocytes) of the ascidian Phallusia nigra. We also investigated the capability of immune cells to produce catecholamine (CA)...
January 12, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28088475/role-of-some-vasoactive-mediators-in-scorpion-envenomed-children-possible-relation-to-envenoming-outcome
#2
Sahar E M El-DeeK, Ayat A Sayed, Ahmed Y Nassar, Zeynab M Mohey-Eldeen, Hussein M Eldeeb, Abdel-Raheim M A Meki
Scorpion envenomation causes an autonomic storm resulting in changes in the vasoactive mediators' levels which lead to myocardial damage, cardiovascular disturbances, peripheral circulatory failure, pulmonary edema, multi-system-organ-failure and death. The study aimed to determine the circulating levels of adrenaline, noradrenaline, angiotensin converting enzyme (ACE), Angiotensin II (Ang II), kallikrein enzyme, nitric oxide (NO), aldosterone, and electrolytes Na(+), K(+) and Ca(+2) in scorpion envenomed children and to evaluate the potential relation between these vasoactive mediators, the severity of scorpion envenoming and the clinical outcome of envenomed children...
January 11, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28088250/pre-hospital-treatment-of-bee-and-wasp-induced-anaphylactic-reactions-a-retrospective-study
#3
Athamaica Ruiz Oropeza, Søren Mikkelsen, Carsten Bindslev-Jensen, Charlotte G Mortz
BACKGROUND: Bee and wasp stings are among the most common triggers of anaphylaxis in adults representing around 20% of fatal anaphylaxis from any cause. Data of pre-hospital treatment of bee and wasp induced anaphylactic reactions are sparse. This study aimed to estimate the incidence of bee and wasp induced anaphylactic reactions, the severity of the reactions and to correlate the pre-hospital treatment with the severity of the anaphylactic reaction. METHODS: Retrospective and descriptive study based on data from the Mobile Emergency Care Units (MECUs) in the Region of Southern Denmark (2008 only for Odense and 2009-2014 for the whole region)...
January 14, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28087097/quick-epinephrine-administration-induces-favorable-neurological-outcomes-in-out-of-hospital-cardiac-arrest-patients
#4
H Ueta, H Tanaka, S Tanaka, R Sagisaka, H Takyu
OBJECTIVE: This research is to study if quick administration of adrenaline on OHCA prior to hospitalization has an effect on improving CPC1-2 at one month. METHODOLOGY: A total 13,326 cases were extracted from 2011 to 2014 Utstein data for this retrospective cohort study, also, EMT reached the patients within 16min after 119 called and adrenaline was then administered within 22min of after contact. PATIENTS DIVIDED INTO TWO GROUPS: Patients were contacted within 8min of the 119 call (n=6956), and were contacted between 8 and 16min after the call (n=6370)...
January 3, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28080974/how-the-heart-speaks-to-the-brain-neural-activity-during-cardiorespiratory-interoceptive-stimulation
#5
Mahlega S Hassanpour, Lirong Yan, Danny J J Wang, Rachel C Lapidus, Armen C Arevian, W Kyle Simmons, Jamie D Feusner, Sahib S Khalsa
Prominent theories emphasize key roles for the insular cortex in the central representation of interoceptive sensations, but how this brain region responds dynamically to changes in interoceptive state remains incompletely understood. Here, we systematically modulated cardiorespiratory sensations in humans using bolus infusions of isoproterenol, a rapidly acting peripheral beta-adrenergic agonist similar to adrenaline. To identify central neural processes underlying these parametrically modulated interoceptive states, we used pharmacological functional magnetic resonance imaging (phMRI) to simultaneously measure blood-oxygenation-level dependent (BOLD) and arterial spin labelling (ASL) signals in healthy participants...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28078330/pheochromocytoma-in-urologic-practice
#6
Nikhil Waingankar, Gennady Bratslavsky, Camilo Jimenez, Paul Russo, Alexander Kutikov
CONTEXT: Pheochromocytoma is regularly encountered in urological practice and requires a thoughtful and careful clinical approach. OBJECTIVE: To review clinical aspects of management of pheochromocytoma in urologic practice. EVIDENCE ACQUISITION: A systematic review of English-language literature was performed through year 2015 using the Medline database. Manuscripts were selected with consensus of the coauthors and evaluated using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) criteria...
February 2016: European Urology Focus
https://www.readbyqxmd.com/read/28077337/stress-hormone-epinephrine-adrenaline-and-norepinephrine-noradrenaline-effects-on-the-anaerobic-bacteria
#7
REVIEW
Lyudmila Boyanova
Microbial endocrinology is a relatively new research area that already encompasses the anaerobes. Stress hormones, epinephrine and norepinephrine, can affect the growth of anaerobic bacteria such as Fusobacterium nucleatum, Prevotella spp., Porhyromonas spp., Tanerella forsythia and Propionibacterium acnes and can increase virulence gene expression, iron acquisition and many virulence factors of some anaerobic species such as Clostridium perfringens, Porphyromonas gingivalis and Brachyspira pilosicoli. Epinephrine and norepinephrine effects can lead to a growth increase or decrease, or no effect on the growth of the anaerobes...
January 8, 2017: Anaerobe
https://www.readbyqxmd.com/read/28068408/pharmacokinetics-of-lidocaine-hydrochloride-administered-with-or-without-adrenaline-for-the-paravertebral-brachial-plexus-block-in-dogs
#8
Amélie Choquette, Eric Troncy, Martin Guillot, France Varin, Jérôme R E Del Castillo
Adrenaline is known to prolong the duration of local anesthesia but its effects on the pharmacokinetic processes of local anesthetic drugs are not fully understood. Our objective was to develop a compartmental model for quantification of adrenaline's impact on the pharmacokinetics of perineurally-injected lidocaine in the dog. Dogs were subjected to paravertebral brachial plexus block using lidocaine alone or adrenalinated lidocaine. Data was collected through a prospective, randomised, blinded crossover protocol performed over three periods...
2017: PloS One
https://www.readbyqxmd.com/read/28065878/coordination-between-antioxidant-defences-might-be-partially-modulated-by-magnesium-status
#9
Cristina Paula Monteiro, Catarina Nunes Matias, Manuel Bicho, Helena Santa-Clara, Maria José Laires
The aim of this study was to compare the redox balance in competitive adult swimmers against recreational practitioners, controlling for Mg intake. Fifteen, competitive swimmers and 16 recreational practitioners, all male and aged 18-25years, were recruited into the study. Oxidative and muscle damage markers, and antioxidant enzymes and non-enzymatic antioxidants were evaluated by photometry (except for thiobarbituric reactive substances (TBARS), which was assessed by fluorimetry). Controlling for the level of exercise, inverse correlations were observed for uric acid and glutathione reductase (GR) or susceptibility of red blood cells to peroxidation (RBCPx); plasma adrenaline oxidase activity (AdOx) and carotenoids; TBARS and GR or Vit E; and direct correlations were observed between AdOx and creatine kinase (CK) or TBARS; CK and superoxide dismutase activity; GR and RBCPx...
January 6, 2017: Magnesium Research: Official Organ of the International Society for the Development of Research on Magnesium
https://www.readbyqxmd.com/read/28062882/anaphylaxis-in-children-experience-of-485-episodes-in-1-272-482-patient-attendances-at-a-tertiary-paediatric-emergency-department-from-2007-to-2014
#10
Sashikumar Ganapathy, Zaw Lwin, Daniel Ha Ting, Lynette Sh Goh, Shu Ling Chong
Introduction: Anaphylaxis is a predominantly childhood disease. Most of the literature on anaphylaxis has emerged from Western countries. This study aimed to describe the incidence, triggers and clinical presentation of anaphylaxis among children in Singapore, look for predictors for anaphylaxis with severe outcomes, and study the incidence of biphasic reactions. Materials and Methods: We retrospectively reviewed records of children presenting with anaphylaxis to our paediatric emergency department from 1 January 2007 to 31 December 2014...
December 2016: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28062881/characteristics-and-risk-factors-for-mortality-in-paediatric-in-hospital-cardiac-events-in-singapore-retrospective-single-centre-experience
#11
Yee Hui Mok, Amanda Pt Loke, Tsee Foong Loh, Jan Hau Lee
Introduction: There is limited data on paediatric resuscitation outcomes in Asia. We aimed to describe outcomes of paediatric in-hospital cardiac arrests (IHCA) and peri-resuscitation factors associated with mortality in our institution. Materials and Methods: Using data from our hospital's code registry from 2009 to 2014, we analysed all patients younger than 18 years of age with IHCA who required cardiopulmonary resuscitation (CPR). Exposure variables were obtained from clinical demographics, CPR and post-resuscitation data...
December 2016: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28060413/molecularly-imprinted-polymer-chemosensor-for-selective-determination-of-an-n-nitroso-l-proline-food-toxin
#12
Patrycja Lach, Piyush Sindhu Sharma, Karolina Golebiewska, Maciej Cieplak, Francis D'Souza, Wlodzimierz Kutner
A molecularly imprinted polymer (MIP)-based chemosensor for the selective determination of a chosen toxin, N-nitroso-l-proline (Pro-NO), was devised and fabricated. By means of DFT, the structure of the pre-polymerization (functional monomer)-template complex was modeled. This complex was then potentiodynamically electropolymerized in the presence of cross-linking monomer to form a MIP-Pro-NO thin film. Next, the Pro-NO template was extracted from MIP-Pro-NO with 0.1 m NaOH. Piezoelectric microgravimetry (PM) on an electrochemical quartz crystal microbalance and electrochemical (differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS)) techniques were used to transduce binding of Pro-NO to molecular cavities of the MIP-Pro-NO...
November 7, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28054256/salivary-alpha-amylase-not-chromogranin-a-reflects-sympathetic-activity-exercise-responses-in-elite-male-wheelchair-athletes-with-or-without-cervical-spinal-cord-injury
#13
Christof A Leicht, Thomas A W Paulson, Victoria L Goosey-Tolfrey, Nicolette C Bishop
BACKGROUND: Salivary alpha amylase (sAA) and chromogranin A (sCgA) have both been suggested as non-invasive markers for sympathetic nervous system (SNS) activity. A complete cervical spinal cord injury leading to tetraplegia is accompanied with sympathetic dysfunction; the aim of this study was to establish the exercise response of these markers in this in vivo model. METHODS: Twenty-six elite male wheelchair athletes (C6-C7 tetraplegia: N = 8, T6-L1 paraplegia: N = 10 and non-spinal cord injured controls: N = 8) performed treadmill exercise to exhaustion...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28052800/clinical-diagnosis-and-management-of-anaphylaxis-in-infancy
#14
Emine Dibek Misirlioglu, Emine Vezir, Müge Toyran, Murat Capanoglu, Hakan Guvenir, Ersoy Civelek, Can Naci Kocabas
BACKGROUND: Anaphylaxis is increasingly reported in infancy. Diagnosis and management of anaphylaxis is difficult, and data are limited in infants. The aim of the present study was to determine the clinical course and management strategies used for anaphylaxis in infancy. METHODS: Patients attending to our clinic and who had anaphylaxis under 2 years old were evaluated. Sixty-three patients were enrolled for the study. The mean ± standard deviation age was 10.6 ± 6...
January 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28051822/novel-usage-of-fresh-frozen-plasma-in-hereditary-angioedema
#15
N Hanizah, C A Affirul, N A Farah, M A Shamila, M I Ridzuan
Hereditary angioedema (HAE) is a rare and potentially life threatening autosomal dominant disease characterized by recurrent episodes of cutaneous and mucosal oedema. It results from reduced expression or loss of function of CI-esterase inhibitors (C1-INH). As opposed to the more common histamine-mediated angioedema, HAE does not respond well to conventional treatments with anti-histamines, steroids and adrenaline. Early recognition and timely intervention with the correct treatment are crucial particularly preventing airway obstruction...
November 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28050987/glucose-levels-and-hemodynamic-changes-in-patients-submitted-to-routine-dental-extraction-under-local-anesthesia-with-and-without-adrenaline
#16
Sanjay Byakodi, Vivek Gurjar, Sushant Soni
INTRODUCTION: In maxillofacial surgery, the simplest procedure that we perform is dental extraction. However, this simple procedure is challenged by the patient's poor medical condition. We generally use local anesthesia in combination with adrenaline; however, as we come across patients with diabetes mellitus and cardiovascular diseases who seek dental extraction, we need to be doubly cautious while using adrenaline. In this study, we intend to compare the effects of local anesthesia with adrenaline and local anesthesia without adrenaline on hemodynamic changes (blood pressure and pulse rate) and random blood sugar levels...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28041987/retigabine-diminishes-the-effects-of-acetylcholine-adrenaline-and-adrenergic-agonists-on-the-spontaneous-activity-of-guinea-pig-smooth-muscle-strips-in-vitro
#17
Elisaveta Apostolova, Plamen Zagorchev, Vesela Kokova, Lyudmil Peychev
PURPOSE: The aim of this study is to evaluate the effect of retigabine on the smooth muscle response to acetylcholine, adrenaline, α-and β-adrenoceptor agonists. METHODS: We studied the change in the spontaneous smooth muscle contraction of guinea pig gastric corpus strips before and after 20-min treatment with 2μM retigabine. We also evaluated the effect of retigabine on the smooth muscle response to 10μM acetylcholine, 1 and 10μM adrenaline, 1μM methoxamine, 0...
December 23, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28028077/endogenous-%C3%AE-2a-adrenoceptor-operated-sympathoadrenergic-tones-attenuate-insulin-secretion-via-camp-trpm2-signaling
#18
Kiyonori Ito, Katsuya Dezaki, Masashi Yoshida, Hodaka Yamada, Rina Miura, Rauza Sukma Rita, Susumu Ookawara, Kaoru Tabei, Masanobu Kawakami, Kazuo Hara, Yoshiyuki Morishita, Toshihiko Yada, Masafumi Kakei
In pancreatic β-cells, pharmacological concentrations of catecholamines, including adrenaline, have been used to inhibit insulin release and explore the multiple mechanisms involved. However, the significance of these signaling pathways for physiological adrenergic functions in β-cells is largely unknown. In the process of glucose-induced insulin secretion, opening of background current through non-selective cation channels (NSCCs) might facilitate membrane depolarization by closure of the ATP-sensitive K(+) channels...
December 27, 2016: Diabetes
https://www.readbyqxmd.com/read/28026808/-standardization-and-regulation-of-the-rate-of-the-superoxide-generating-adrenaline-autoxidation-reaction-used-for-evaluation-of-pro-antioxidant-properties-of-various-materials
#19
T V Sirota
The superoxide-generating reaction of adrenaline autoxidation is widely used for determination of the activity of superoxide dismutase and pro/antioxidant properties of various materials. There are two variants of the spectrophotometric registration of the products of this reaction. The first is based on registration of adrenochrome, as adrenaline autooxidation product at 347 nm; the second employs nitro blue tetrazolium (NBT) and registration of diformazan, a product of NBT reduction at 560 nm. In the present work, recommendations for the standardization of the reaction rate in both variants have been proposed...
November 2016: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/28026807/-features-of-influence-adenosine-amp-and-hyperadrenalinemiya-on-the-immune-status-metabolic-enzymes-of-purine-nucleotides-and-the-antioxidant-defense-system
#20
S O Tapbergenov, B S Sovetov, A T Tapbergenov
Administration of a large dose of adrenaline (4 mg/kg 60 min before analysis) increased blood levels of total leukocytes, lymphocytes, decreased T-cell suppressors, leukocyte migration inhibition reaction (LMIR) and NBT test, but increased the level of conjugated dienes (CD). Administration of AMPand adenosine increased levels of total leukocytes, lymphocytes, T- lymphocytes, T-helpers, decreased the level of malondialdehyde (MDA), LMIR, and T-cell suppressors. Sympathetic hyperactivation induced by administration of a large dose of adrenaline (4 mg/kg 60 min before analysis) was accompanied by an increase in heart and liver activities of glutathione peroxidase (GPx), catalase, AMP deaminase (AMPD), and adenosine deaminase (AD)...
November 2016: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
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