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Nitroglycerin

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https://www.readbyqxmd.com/read/28223475/reduced-first-phase-ejection-fraction-and-sustained-myocardial-wall-stress-in-hypertensive-patients-with-diastolic-dysfunction-a-manifestation-of-impaired-shortening-deactivation-that-links-systolic-to-diastolic-dysfunction-and-preserves-systolic-ejection-fraction
#1
Haotian Gu, Ye Li, Henry Fok, John Simpson, Jonathan C Kentish, Ajay M Shah, Philip J Chowienczyk
Impaired shortening deactivation of cardiac myocytes could sustain myocardial contraction, preserving ejection fraction at the expense of diastolic dysfunction. We examined the relationship between first-phase ejection fraction (EF1), the fraction of left ventricular volume ejected from the start of systole to the time of the first peak in left ventricular pressure (corresponding to the time of maximal ventricular shortening) to the duration of myocardial contraction and diastolic function in patients with hypertension (n=163), and varying degrees of diastolic dysfunction...
February 21, 2017: Hypertension
https://www.readbyqxmd.com/read/28220375/cardiac-cephalalgia-one-case-with-cortical-hypoperfusion-in-headaches-and-literature-review
#2
REVIEW
Miao Wang, Lu Wang, Changfu Liu, Xiangbing Bian, Zhao Dong, Shengyuan Yu
BACKGROUND: Cardiac cephalalgia (CC) is a rare disease occurring during an episode of myocardial ischemia and relieved by nitroglycerine. Though more than 30 cases of CC have been reported since 1997, the mechanism is yet obscure. Herein, a case of CC is presented and discussed in relevance with previous literature to propose a novel hypothesis about the mechanism of CC. METHOD: A CC patient with cortical hypoperfusion during headache attacks was presented, which has never been reported...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28190464/a-chinese-patent-medicine-salvia-miltiorrhiza-depside-salts-for-infusion-combined-with-conventional-treatment-for-patients-with-angina-pectoris-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#3
Yili Zhang, Yanming Xie, Xing Liao, Qiulei Jia, Yan Chai
BACKGROUND: Currently, many trials have been conducted to investigate the beneficial and harmful effects of Salvia miltiorrhiza depside salts for infusion for treating patients with angina pectoris. It is important to systematically and criticallyevaluate the existing literature into providing a pooled effect to examine outcomes of angina pectoris with Salvia miltiorrhiza depside salts for infusion. PURPOSE: A systematic review and meta-analysis were performed to determine the clinical curative effect and safety of Salvia miltiorrhiza depside salts for infusion for angina pectoris and provide clear evidence to inform clinical practice...
February 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28185531/endothelial-dysfunction-in-normoglycaemic-first-degree-relatives-of-type-2-diabetes-mellitus-complicated-with-hyperuricaemia
#4
Junxia Zhang, Lin Xiang, Bilin Zhang, Yangyang Cheng
OBJECTIVE: To reveal the effect of hyperuricaemia on endothelial function in normoglycaemic first-degree relatives of type 2 diabetes mellitus. METHODS: In all, 40 first-degree relatives of type 2 diabetes mellitus with hyperuricaemia, 40 first-degree relatives of type 2 diabetes mellitus with normouricaemia and 35 healthy subjects without diabetic family history were recruited in this study. Anthropometric parameters as well as blood pressure, blood lipids, fasting blood glucose, fasting insulin, C-reactive protein, tumour necrosis factor-α and interleukin-6 were measured...
March 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28154162/outcomes-of-physician-staffed-versus-non-physician-staffed-helicopter-transport-for-st-elevation-myocardial-infarction
#5
Sverrir I Gunnarsson, Joseph Mitchell, Mary S Busch, Brenda Larson, S Michael Gharacholou, Zhanhai Li, Amish N Raval
BACKGROUND: The effect of physician-staffed helicopter emergency medical service (HEMS) on ST-elevation myocardial infarction (STEMI) patient transfer is unknown. The purpose of this study was to evaluate the characteristics and outcomes of physician-staffed HEMS (Physician-HEMS) versus non-physician-staffed (Standard-HEMS) in patients with STEMI. METHODS AND RESULTS: We studied 398 STEMI patients transferred by either Physician-HEMS (n=327) or Standard-HEMS (n=71) for primary or rescue percutaneous coronary intervention at 2 hospitals between 2006 and 2014...
February 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28144257/treatment-of-denture-related-stomatitis-improves-endothelial-function-assessed-by-flow-mediated-vascular-dilation
#6
Grzegorz Osmenda, Joanna Maciąg, Grzegorz Wilk, Anna Maciąg, Daniel Nowakowski, Jolanta Loster, Elżbieta Dembowska, Douglas Robertson, Tomasz Guzik, Marta Cześnikiewicz-Guzik
INTRODUCTION: The presence of oral inflammation has recently been linked with the pathogenesis of cardiovascular diseases. While numerous studies have described links between periodontitis and endothelial dysfunction, little is known about the influence of denture-related stomatitis (DRS) on cardiovascular risk. Therefore, the aim of this study was to determine whether the treatment of DRS can lead to improvement of the clinical measures of vascular dysfunction. MATERIAL AND METHODS: The DRS patients were treated with a local oral antifungal agent for 3 weeks...
February 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28120185/drug-therapy-for-stable-angina-pectoris
#7
Talla A Rousan, Sunil T Mathew, Udho Thadani
Chronic stable angina pectoris refers to the predictable, reproducible occurrence of pressure or a choking sensation in the chest or adjacent areas caused by myocardial ischemia in association with physical or emotional stress, and cessation of exertion and or sublingual nitroglycerin invariably relieves the discomfort. It is a common presenting symptom of severe narrowing of one or more coronary arteries, non-obstructive coronary arteries, or even when the coronary arteries are angiographically normal. Patients often avoid activities which precipitate symptoms and have impaired quality of life...
January 24, 2017: Drugs
https://www.readbyqxmd.com/read/28110808/suppression-of-graft-spasm-by-the-particulate-guanylyl-cyclase-activator-in-coronary-bypass-surgery
#8
Takeshi Kinoshita, Masashi Tawa, Tomoaki Suzuki, Yoshinari Aimi, Tohru Asai, Tomio Okamura
BACKGROUND: Spasm of arterial grafts is still a clinical problem in coronary artery bypass surgery. The present study was designed to examine the effect of particulate guanylyl cyclase activator (carperitide) as an antispastic agent in internal thoracic artery and gastroepiploic artery grafts. METHODS: Isolated arterial grafts taken during surgery were studied in organ bath in three ways: the relaxing effect of carperitide on vasoconstrictor-induced precontraction; the inhibitory effect of pretreatment with carperitide on subsequent vasoconstrictor-induced contraction; and the effect of carperitide and nitroglycerin on increase of intracellular cyclic guanosine monophosphate levels...
January 19, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28105946/a-physarum-inspired-prize-collecting-steiner-tree-approach-to-identify-subnetworks-for-drug-repositioning
#9
Yahui Sun, Pathima Nusrath Hameed, Karin Verspoor, Saman Halgamuge
BACKGROUND: Drug repositioning can reduce the time, costs and risks of drug development by identifying new therapeutic effects for known drugs. It is challenging to reposition drugs as pharmacological data is large and complex. Subnetwork identification has already been used to simplify the visualization and interpretation of biological data, but it has not been applied to drug repositioning so far. In this paper, we fill this gap by proposing a new Physarum-inspired Prize-Collecting Steiner Tree algorithm to identify subnetworks for drug repositioning...
December 5, 2016: BMC Systems Biology
https://www.readbyqxmd.com/read/28100342/-the-effect-on-myocardial-perfusion-and-clinical-outcome-of-intracoronary-nicorandil-injection-prior-to-percutaneous-coronary-intervention-in-st-segment-elevation-myocardial-infarction
#10
Z Q Wang, M X Chen, D L Liu, W X Zheng, X Z Cao, H Chen, M F Huang, Z R Luo
Objective: To investigate the effect of intracoronary administration of nicorandil prior to primary percutaneous coronary intervention (PPCI) on myocardial perfusion and short-term clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). Methods: A total of 158 patients with STEMI undergoing PPCI from January 2014 to December 2015 in Fuzhou General Hospital were enrolled consecutively in this prospective controlled randomized trial. Patients were assigned into three groups with random number table: the nicorandil group (patients received intracoronary administration of 6 mg nicorandil after guide wire or balloon successfully crossed the target lesion, n=53), the nitroglycerin group (patients received intracoronary administration of 300 μg nitroglycerin after after guide wire or balloon successfully crossed the target lesion, n=52) and the control group(patients received routine treatment, n=53)...
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28081214/cold-pressor-stress-cardiac-magnetic-resonance-myocardial-flow-reserve-is-not-useful-for-detection-of-coronary-endothelial-dysfunction-in-women-with-signs-and-symptoms-of-ischemia-and-no-obstructive-cad
#11
Sofy Landes, Sherwin Dela Cruz, Janet Wei, Ahmed AlBadri, Chrisandra Shufelt, Puja Mehta, Louise E Thomson, Marcio A Diniz, Xiao Zhang, John W Petersen, R David Anderson, Carl J Pepine, Daniel S Berman, C Noel Bairey Merz
BACKGROUND: Coronary endothelial function testing using acetylcholine is not routinely available, while non-pharmacological cold pressor testing (CPT) is considered an endothelial stressor. Noninvasive cardiac magnetic resonance imaging (CMRI) myocardial perfusion reserve index (MPRI) can detect coronary microvascular dysfunction (CMD). We evaluated if CPT stress CMRI MPRI could detect invasive coronary endothelial dysfunction. METHODS: Coronary reactivity testing was performed in 189 women with symptoms and signs of ischemic but no obstructive coronary artery disease as previously described plus CPT stress...
2017: PloS One
https://www.readbyqxmd.com/read/28070907/analysis-of-explosives-by-gc-uv
#12
Jan Andrasko, Ludmila Lagesson-Andrasko, Johan Dahlén, Bengt-Harald Jonsson
A mixture of explosives was analyzed by gas chromatography (GC) linked to ultraviolet (UV) spectrophotometry that enabled detection in the range of 178-330 nm. The gas-phase UV spectra of 2,4,6-trinitrotoluene (TNT), 2,4-dinitrotoluene (DNT), ethylene glycol dinitrate (EGDN), glycerine trinitrate (NG, nitroglycerine), triacetone triperoxide (TATP), and pentaerythritol tetranitrate (PETN) were successfully recorded. The most interesting aspect of the current application is that it enabled simultaneous detection of both the target analyte and its decomposition products...
January 10, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28064147/experimental-and-theoretical-studies-on-stability-of-new-stabilizers-for-n-methyl-p-nitroaniline-derivative-in-cmdb-propellants
#13
Qiufan Tang, Xuezhong Fan, Jizhen Li, Fuqiang Bi, Xiaolong Fu, Lianjie Zhai
Although N-methyl-P-nitroaniline (MNA) was a quite effective stabilizer in composite modified double base (CMDB) propellants, it undergoes crystallization easily from nitroglycerin (NG) during storage. In order to improve its solubility in nitroglycerin (NG) and the stability in propellants, several new stabilizers including N-ethyl-p-nitroaniline (ENA), N-n-propyl-p-nitroaniline (n-PNA), N-i-propyl-p-nitroaniline (i-PNA), N-n-butyl-p-nitroaniline (n-BNA) and N-t-butyl-p-nitroaniline (t-BNA) were designed and synthesized to replace MNA by increasing the carbon chain length...
December 28, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28063720/a-case-of-cardiac-arrest-that-occurred-on-a-high-mountain-in-which-a-favorable-outcome-was-obtained
#14
Youichi Yanagawa, Kazuhiko Omori, Ikuto Takeuchi, Kei Jitsuiki, Toshihiko Yoshizawa, Kouhei Ishikawa, Yumi Kando, Mutsumu Fukata, Hiromichi Ohsaka
A 36-year-old man started to climb Mount Fuji (3776m above sea level: ASL), from the Gotemba new fifth station (2400m ASL). He had no significant medical history, and this was his first attempt to climb such a high mountain. He began feeling chest discomfort but continued to climb. When he reached the ninth station of the mountain (3600mASL), he lost consciousness. One individual immediately provided basic life support using an automated external defibrillator (AED) that was located in the station. After electroshocks, he regained consciousness...
October 24, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28060537/variations-of-perioperative-baroreflex-sensitivity-in-hypertensive-and-normotensive-patients
#15
Dan Huang, Jie Zhou, Diansan Su, Weifeng Yu, Jie Chen
BACKGROUND: Impaired baroreflex sensitivity (BRS) is a marker of autonomous dysfunction, which may play an important role in the long-term development of hypertension. Perioperative patients with hypertension are rapidly increasing in all populations worldwide. OBJECTIVE: To estimate the value of BRS for hypertension in a surgery cohort. METHODS: An observational and cross-sectional study was performed, involving 96 patients who underwent video-assisted thoracoscopic pulmonary lobectomy or segmentectomy...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28059836/neurally-mediated-syncope-during-cesarean-delivery-a-case-report
#16
Seiko Sato, Erisa Nakamori, Go Kusumoto, Kenji Shigematsu, Ken Yamaura
A 28-year-old woman with preeclampsia at 32 weeks of gestation underwent a cesarean delivery under spinal anesthesia. Administration of nitroglycerin at 200 μg to relax uterine smooth muscles and the application of fundal pressure led to severe bradycardia and loss of consciousness, followed by cardiac arrest. Delivery was completed immediately and recovery was achieved 10 seconds later following cardiopulmonary resuscitation. Neurally mediated syncope was considered the cause of cardiac arrest. Anesthetists should be aware of the potential risk during cesarean delivery following the administration of nitroglycerin, fundal pressure, regional anesthesia, and hypovolemia because of preeclampsia...
January 4, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28054454/epoetin-beta-pegol-ameliorates-flow-mediated-dilation-with-improving-enos-coupling-state-in-non-obese-diabetic-rats
#17
Kenichi Serizawa, Kenji Yogo, Yoshihito Tashiro, Ryohei Kawasaki, Koichi Endo, Yasushi Shimonaka, Michinori Hirata
BACKGROUND/AIMS: Patients with diabetic nephropathy have a high cardiovascular mortality. Epoetin beta pegol (continuous erythropoietin receptor activator, C.E.R.A.) is a drug for the treatment of renal anemia. In this study, we investigated the effect of C.E.R.A. on vascular endothelial function as evaluated by flow-mediated dilation (FMD) and the relationship between hematopoiesis and FMD in diabetic nephropathy rats. METHODS: Male Spontaneously Diabetic Torii rats (SDT, 22 weeks old) were used...
January 5, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28053504/nitroglycerin-enhances-the-propagation-of-cortical-spreading-depression-comparative-studies-with-sumatriptan-and-novel-kynurenic-acid-analogues
#18
Levente Knapp, Bence Szita, Kitti Kocsis, László Vécsei, József Toldi
BACKGROUND: The complex pathophysiology of migraine is not yet clearly understood; therefore, experimental models are essential for the investigation of the processes related to migraine headache, which include cortical spreading depression (CSD) and NO donor-induced neurovascular changes. Data on the assessment of drug efficacy in these models are often limited, which prompted us to investigate a novel combined migraine model in which an effective pharmacon could be more easily identified...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28032358/evaluation-of-the-brachial-artery-endothelial-function-in-chronic-alcohol-consumption-among-males-by-high-frequency-ultrasonography
#19
Runlan Luo, Jiaqi Shen, Qiao Zhou, Yue Liu, Guangsen Li
OBJECTIVE: There is evidence suggesting that different volumes of chronic alcohol consumption have different effects on the endothelium. Therefore, using high-frequency ultrasonography, we evaluate the effects of the different volume and duration of alcohol intake on brachial artery endothelial function in chronic drinkers. METHODS: Ninety-two male chronic episodic alcoholics were grouped by alcohol intake amount and duration: mild (group B, n=30); ≤90 mg ethanol daily, 3-5 days/wk for 5-8 years; moderate (group C, n=30); 90-150 mg ethanol daily, 3-5 days/wk for 9-20 years; and severe (group D, n=32); ≥150 mg ethanol daily, 6-7 days/wk for more than 10 years...
December 29, 2016: Echocardiography
https://www.readbyqxmd.com/read/28031683/left-main-coronary-spasm-an-extremely-rare-entity-with-possible-life-threatening-complications
#20
A Al Emam, N Sricharoen
Coronary artery spasm is a known cause of acute coronary syndrome. However, left main coronary spasm is an extremely rare entity and can present in different ways depending on the duration and severity of the spasm. We present a 44-year-old female patient who presented with transient ST elevation in the lead aVR and ST depression in the lateral and inferior leads. Coronary angiography showed mid left main and ostial right coronary artery spasm that significantly improved after intracoronary nitroglycerine administration...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
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