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https://www.readbyqxmd.com/read/28745844/emergency-department-management-of-priapism-digest
#1
Gregory S Podolej, Christine Babcock, Jeremy Kim
Priapism is a genitourinary emergency that demands a thorough, time-sensitive evaluation. There are 3 types of priapism: ischemic, nonischemic, and recurrent ischemic priapism; ischemic priapism accounts for 95% of cases. Ischemic priapism must be treated within 4 to 6 hours to minimize morbidity, including impotence. The diagnosis of ischemic priapism relies heavily on the history and physical examination and may be facilitated by penile blood gas analysis and penile ultrasound. This issue reviews current evidence regarding emergency department treatment of ischemic priapism using a stepwise approach that begins with aspiration of cavernosal blood, cold saline irrigation, and penile injection with sympathomimetic agents...
January 22, 2017: Emergency Medicine Practice
https://www.readbyqxmd.com/read/28706452/elucidation-of-the-profound-antagonism-of-contractile-action-of-phenylephrine-in-rat-aorta-effected-by-an-atypical-sympathomimetic-decongestant
#2
Eldina Rizvić, Goran Janković, Miroslav M Savić
Vasoconstrictive properties of sympathomimetic drugs are the basis of their widespread use as decongestants and possible source of adverse responses. Insufficiently substantiated practice of combining decongestants in some marketed preparations, such are those containing phenylephrine and lerimazoline, may affect the overall contractile activity, and thus their therapeutic utility. This study aimed to examine the interaction between lerimazoline and phenylephrine in isolated rat aortic rings, and also to assess the substrate of the obtained lerimazoline-induced attenuation of phenylephrine contraction...
July 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28695477/dexpanthenol-an-overview-of-its-contribution-to-symptom-relief-in-acute-rhinitis-treated-with-decongestant-nasal-sprays
#3
REVIEW
Ralph Mösges, Kija Shah-Hosseini, Hans-Peter Hucke, Marie-Josefine Joisten
Nasal blockage is the most bothersome symptom of acute rhinitis. Nasal decongestant sprays containing alpha-sympathomimetics, such as oxymetazoline and xylometazoline, have a rapid onset of action. However, this effect decreases with repeated application and, furthermore, the ciliary function of the nasal mucosa is practically paralyzed. Dexpanthenol promotes cell proliferation and protects the epithelium. Combining these two agents has demonstrated beneficial synergetic effects on the symptoms of acute rhinitis...
July 10, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28655495/tranylcypromine-in-mind-part-i-review-of-pharmacology
#4
REVIEW
Sven Ulrich, Roland Ricken, Mazda Adli
It has been over 50 years since a review has focused exclusively on the monoamine oxidase (MAO) inhibitor tranylcypromine (TCP). A new review has therefore been conducted for TCP in two parts which are written to be read preferably in close conjunction: Part I - pharmacodynamics, pharmacokinetics, drug interactions, toxicology; and Part II - clinical studies with meta-analysis of controlled studies in depression, practice of TCP treatment, place in therapy. Pharmacological data of this review part I characterize TCP as an irreversible and nonselective MAO-A/B inhibitor at low therapeutic doses of 20mg/day with supplementary norepinephrine reuptake inhibition at higher doses of 40-60mg/day...
June 24, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28644052/a-little-dab-will-do-ya-in-a-case-report-of-neuro-and-cardiotoxicity-following-use-of-cannabis-concentrates
#5
Shannon S Rickner, Dazhe Cao, Kurt Kleinschmidt, Steven Fleming
CONTEXT: The use of marijuana and cannabis concentrates is increasing, especially following decriminalization in several states. Psychosis and cardiotoxicity have been reported following cannabis use; however, myocardial injury from "dabbing" has not yet been reported. We report a case of hyperthermia, tachycardia, hypertension, severe agitation, neuro-, and cardiotoxicity following the use of "dabs" where there is concomitant confirmatory biological and sample testing. CASE DETAILS: A 17-year-old athletic man developed agitation requiring sedation and intubation for safety, with peak systolic blood pressures in the 190s and hyperthermia (to 102 °F)...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28632997/epidemiology-of-obesity-and-pharmacologic-treatment-options
#6
Vignesh Shettar, Sarang Patel, Srividya Kidambi
Prevalence of obesity and its related morbidity have increased to alarming levels in adults and children in the United States and globally. Weight loss results in improvement of much of the obesity-related morbidity. Lifestyle changes such as dietary modifications, increased physical activity, and behavioral therapy form the crux of weight management. However, many individuals need additional assistance (pharmacologic or surgical) to initiate or sustain weight loss. Pharmacologic therapy consists of a number of agents that work by decreasing appetite, gastric emptying, or nutrient absorption or by increasing satiety...
June 1, 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28628756/atypical-sympathomimetic-drug-lerimazoline-mediates-contractile-effects-in-rat-aorta-predominantly-by-5-ht2a-receptors
#7
Eldina Rizvić, Goran Janković, Slađana Kostić-Rajačić, Miroslav M Savić
Lerimazoline is a sympathomimetic drug that belongs to the imidazoline class of compounds, and is used as a nasal decongestant. Studies on lerimazoline are rare, and its pharmacological profile is not completely understood. Here, we analyzed the affinity of lerimazoline for dopamine receptor D2, serotonin 5-HT1A and 5-HT2A receptors and α1-adrenoceptor, and investigated lerimazoline contractile effects in isolated rat thoracic aorta. We also determined the effect of several antagonists on the contractile response to lerimazoline, including prazosin (α1-adrenoceptor antagonist), RX 821002 and rauwolscine (α2-adrenoceptor antagonists), JP 1302 (α2C-adrenoceptor antagonist), methiothepin (non-selective 5-HT receptor antagonist), SB 224289 (5-HT1B receptor antagonist), BRL 15572 (5-HT1D receptor antagonist), and ketanserin (5-HT2A receptor antagonist)...
June 19, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28628021/correlation-between-spirometry-dates-and-special-allergen-specific-ige-in-patients-with-bronchial-asthma-in-west-georgia
#8
R Sepiashvili, M Chikhladze, D Khachapuridze, S Gamkrelidze
The study aimed to establish correlation between airway obstruction and specific IgE specificity, managing future treatment in the patients with bronchial asthma, among the population of west Georgia. In the study have been involved 56 patients (among them 24 males and 32 females) of different ages, with diagnostic bronchial asthma (according to GINA recommendation). On the ground of the aim the study included the following steps of allegro-diagnostics: I step - Computerized spirometry by apparatus ,,SPIROLAB 3"...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28595525/obesity-induced-hypertension-new-insights
#9
Christina Antza, Stella Stabouli, Michalis Natsis, Ioannis Doundoulakis, Vasilios Kotsis
BACKGROUND: New insights on the relationship between weight loss and hypertension and the role of the newly approved anti-obesity drugs on hypertension will be discussed Methods: Weight loss is a major factor to reduce blood pressure when a patient with excess weight is advised from the health care provider to change his lifestyle. A healthy lifestyle with reduction in body weight, reduction in caloric intake, increased fruit and vegetables consumption and reduced salt intake concomitant with an increase in physical exercise can reduce body weight and hypertension in overweight and obese patients, but not all obese are able to reduce their blood pressure and lose weight without treatment and special dietary care...
June 7, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28588484/akrinor-tm-a-cafedrine-theodrenaline-mixture-20-1-increases-force-of-contraction-of-human-atrial-myocardium-but-does-not-constrict-internal-mammary-artery-in-vitro
#10
Benjamin Kloth, Simon Pecha, Eileen Moritz, Yvonne Schneeberger, Klaus-Dieter Söhren, Edzard Schwedhelm, Hermann Reichenspurner, Thomas Eschenhagen, Rainer H Böger, Torsten Christ, Sebastian N Stehr
Background: Intraoperative hypotension is a common problem and direct or indirect sympathomimetic drugs are frequently needed to stabilize blood pressure. Akrinor(TM) consists of the direct and the indirect sympathomimetic noradrenaline and norephedrine. Both substances are covalently bound to the phosphodiesterase (PDE) inhibitor theophylline, yielding theodrenaline and cafedrine, respectively. We investigated pharmacodynamic effects of Akrinor(TM) and its constituents on contractile force and tension in human atrial trabeculae and internal A...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28579071/tranylcypromine-in-mind-part-ii-review-of-clinical-pharmacology-and-meta-analysis-of-controlled-studies-in-depression
#11
REVIEW
Roland Ricken, Sven Ulrich, Peter Schlattmann, Mazda Adli
It has been over 50 years since a review has focused exclusively on the monoamine oxidase (MAO) inhibitor tranylcypromine (TCP). A new review has therefore been conducted for TCP in two parts which are written to be read preferably in close conjunction: part I - pharmacodynamics, pharmacokinetics, drug interactions, toxicology; and part II - clinical studies with meta-analysis of controlled studies in depression, practice of TCP treatment, place in therapy. The irreversible and nonselective MAO-A/B inhibitor TCP has been confirmed as an efficacious and safe antidepressant drug...
June 1, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28574581/the-%C3%AE-3-adrenoceptor-agonist-mirabegron-increases-human-atrial-force-through-%C3%AE-1-adrenoceptors-an-indirect-mechanism
#12
Weilan Mo, Martin C Michel, Xiang Wen Lee, Alberto J Kaumann, Peter Molenaar
BACKGROUND AND PURPOSE: Mirabegron has been classified as a β3 -adrenoceptor agonist approved for overactive bladder syndrome. We investigated possible cardiac effects of mirabegron in the absence or presence of β-adrenoceptor subtype antagonists. In view of its phenylethanolamine structure, we investigated whether mirabegron has indirect sympathomimetic activity by using neuronal uptake blockers. EXPERIMENTAL APPROACH: Right atrial trabeculae, from non-failing hearts, were paced and contractile force measured at 37°C...
August 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28551715/direct-comparison-of-the-acute-subjective-emotional-autonomic-and-endocrine-effects-of-mdma-methylphenidate-and-modafinil-in-healthy-subjects
#13
Patrick C Dolder, Felix Müller, Yasmin Schmid, Stefan J Borgwardt, Matthias E Liechti
RATIONALE: 3,4-Methylenedioxymethamphetamine (MDMA) is used recreationally and investigated as an adjunct to psychotherapy. Methylphenidate and modafinil are psychostimulants that are used to treat attention-deficit/hyperactivity disorder and narcolepsy, respectively, but they are also misused as cognitive enhancers. Little is known about differences in the acute effects of equally cardiostimulant doses of these stimulant-type substances compared directly within the same subjects. METHODS: We investigated the acute autonomic, subjective, endocrine, and emotional effects of single doses of MDMA (125 mg), methylphenidate (60 mg), modafinil (600 mg), and placebo in a double-blind, cross-over study in 24 healthy participants...
May 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28511232/-priapism-in-children-and-adolescents
#14
Abhishek Pandey, Hansjörg Keller
Priapism is a prolonged erection without sexual stimulation. In most cases it requires prompt management in order to avoid long-term consequences such as erectile dysfunction or penile deformity. Priapism is rare in children, but haematological diseases play an important role. The diagnosis is generally not difficult. Blood gas analysis and Doppler sonography are used to establish the form of priapism and determine its further management. The management of low-flow priapism consists of immediate blood aspiration and intracavernosal injection of sympathomimetic drugs as needed...
May 16, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28483802/glucagon-like-peptide-1-receptor-activation-augments-cardiac-output-and-improves-cardiac-efficiency-in-obese-swine-after-myocardial-infarction
#15
Daniel J Sassoon, Johnathan D Tune, Kieren J Mather, Jillian N Noblet, Mackenzie A Eagleson, Abass M Conteh, Joshua T Sturek, Adam G Goodwill
This study tested the hypothesis that glucagon-like peptide 1 (GLP-1) therapies improve cardiac contractile function at rest and in response to adrenergic stimulation in obese swine after myocardial infarction. Obese Ossabaw swine were subjected to gradually developing regional coronary occlusion using an ameroid occluder placed around the left anterior descending coronary artery. Animals received subcutaneous injections of saline or liraglutide (0.005-0.015 mg/kg/day) for 30 days after ameroid placement. Cardiac performance was assessed at rest and in response to sympathomimetic challenge (dobutamine 0...
August 2017: Diabetes
https://www.readbyqxmd.com/read/28474252/pharmacological-analysis-of-the-increases-in-heart-rate-and-diastolic-blood-pressure-produced-by-s-isometheptene-and-r-isometheptene-in-pithed-rats
#16
Alejandro Labastida-Ramírez, Eloísa Rubio-Beltrán, Oswaldo Hernández-Abreu, Bruce L Daugherty, Antoinette MaassenVanDenBrink, Carlos M Villalón
BACKGROUND: Isometheptene is a sympathomimetic drug effective in acute migraine treatment. It is composed of two enantiomers with diverse pharmacological properties. This study investigated in pithed rats the cardiovascular effects of (S)- isometheptene and (R)-isometheptene, and the pharmacological profile of the more potent enantiomer. METHODS: The effects of i.v. bolus injections (0.03, 0.1, 0.3, 1 and 3 mg/kg) of isometheptene racemate, (S)-isometheptene or (R)-isometheptene on heart rate and blood pressure were analyzed in control experiments...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28455489/st-segment-elevation-myocardial-infarction-with-acute-stent-thrombosis-presenting-as-intractable-hiccups-an-unusual-case
#17
Fan Zhang, Nosakhare Douglas Tongo, Victoria Hastings, Parisa Kanzali, Ziqiang Zhu, Hal Chadow, Shahrokh E Rafii
BACKGROUND Acute coronary syndrome (ACS) can present with atypical chest pain or symptoms not attributed to heart disease, such as indigestion. Hiccups, a benign and self-limited condition, can become persistent or intractable with overlooked underlying etiology. There are various causes of protracted hiccups, including metabolic abnormalities, psychogenic disorders, malignancy, central nervous system pathology, medications, pulmonary disorders, or gastrointestinal etiologies. It is rarely attributed to cardiac disease...
April 29, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28431781/clenbuterol-hydrochloride
#18
Abdulrahman A Al-Majed, Nasr Y Khalil, Ibraheem Khbrani, Hatem A Abdel-Aziz
Clenbuterol (Broncodil and trade) is a direct-acting sympathomimetic agent with mainly beta-adrenergic activity and a selective action on β2 receptors (a β2 agonist). It has properties similar to those of salbutamol. It is used as a bronchodilator in the management of reversible airways obstruction, as in asthma and in certain patients with chronic obstructive pulmonary disease. The uses, applications, and the synthetic pathways of this drug are outlined. Physical characteristics including: ionization constant, solubility, X-ray powder diffraction pattern, thermal methods of analysis, UV spectrum, IR spectrum, mass spectrum are all produced...
2017: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/28431779/propranolol
#19
Abdulrahman A Al-Majed, Ahmed H H Bakheit, Hatem A Abdel Aziz, Fahad M Alajmi, Haitham AlRabiah
Propranolol is a noncardioselective β-blocker. It is reported to have membrane-stabilizing properties, but it does not own intrinsic sympathomimetic activity. Propranolol hydrochloride is used to control hypertension, pheochromocytoma, myocardial infarction, cardiac arrhythmias, angina pectoris, and hypertrophic cardiomyopathy. It is also used to control symptoms of sympathetic overactivity in the management of hyperthyroidism, anxiety disorders, and tremor. Other indications cover the prophylaxis of migraine and of upper gastrointestinal bleeding in patients with portal hypertension...
2017: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/28382232/resveratrol-enhances-the-inotropic-effect-but-inhibits-the-proarrhythmic-effect-of-sympathomimetic-agents-in-rat-myocardium
#20
Jesús Hernandez-Cascales
BACKGROUND: Resveratrol is a cardioprotective agent with known antiarrhythmic effects that has recently been shown to inhibit phosphodiesterase (PDE) enzyme activity. Thus, it is possible that resveratrol increases the inotropic effect of sympathomimetic agents, as PDE inhibitors do but, unlike other PDE inhibitors, its effect may not be accompanied by proarrhythmia due to its antiarrhythmic action. This work is aimed to test this hypothesis. METHODS: This is an "in vitro" concentration-response relationship study...
2017: PeerJ
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