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https://www.readbyqxmd.com/read/28535116/is-mannitol-the-treatment-of-choice-for-patients-with-ciguatera-fish-poisoning
#1
Michael E Mullins, Robert S Hoffman
CONTEXT: Ciguatera fish poisoning arises primarily from consumption of carnivorous reef fish caught in tropical and sub-tropical waters. Ciguatoxins, a class of tasteless, heat-stable, polycyclic toxins produced by dinoflagellates, accumulate through the food chain and concentrate in various carnivorous fish, such as groupers, barracudas, wrasses, amberjack, kingfishes, and eels. Characteristics of ciguatera fish poisoning include early nausea, vomiting, and diarrhea in the first one to two days post ingestion, followed by the appearance of sensory disturbances...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28534263/n-acetylaspartylglutamate-inhibits-heroin-self-administration-and-heroin-seeking-behaviors-induced-by-cue-or-priming-in-rats
#2
Huaqiang Zhu, Miaojun Lai, Weisheng Chen, Disen Mei, Fuqiang Zhang, Huifeng Liu, Wenhua Zhou
Activation of presynaptic group II metabotropic glutamate receptors (mGluR2/3) inhibits drug reward and drug-seeking behavior, but the role of N-acetylaspartylglutamate (NAAG), an agonist of endogenous mGluR2/3, in heroin reward and heroin-seeking behavior remained unclear. Here, we aimed to explore the effects of exogenous NAAG on heroin self-administration and heroin-seeking behavior. First, rats were trained to self-administer heroin under a fixed ratio 1 (FR1) schedule for 10 days, then received NAAG (50 or 100 μg/10 μL in each nostril) in the absence or presence of LY341495 (1 mg/kg, i...
May 22, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28533916/pediatric-intensive-care-stress-ulcer-prevention-pic-up-a-protocol-for-a-pilot-randomized-trial
#3
Mark Duffett, Karen Choong, Jennifer Foster, Elaine Gilfoyle, Jacques Lacroix, Nikhil Pai, Lehana Thabane, Deborah J Cook
BACKGROUND: Despite sparse pediatric data on effectiveness, the majority of critically ill children receive medications to prevent gastrointestinal (GI) bleeding. Stress ulcer prophylaxis may have unintended consequences-increasing the risk of nosocomial infections-which may be more serious and common than the bleeding which these drugs are prescribed to prevent. Randomized controlled trials (RCTs) in pediatric critical care are exceptionally challenging to complete, thus a rigorous pilot RCT is crucial...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28532144/physically-targeted-intravenous-polyurethane-nanoparticles-for-controlled-release-of-atorvastatin-calcium
#4
Behnaz Sadat Eftekhari, Akbar Karkhaneh, Ali Alizadeh
Background: Intravenous drug delivery is an advantageous choice for rapid administration, immediate drug effect, and avoidance of first-pass metabolism in oral drug delivery. In this study, the synthesis, formulation, and characterization of atorvastatin-loaded polyurethane (PU) nanoparticles were investigated for intravenous route of administration. Methods: First, PU was synthesized and characterized. Second, nanoparticles were prepared in four different ratios of drug to polymer through two different techniques including emulsion-diffusion and single-emulsion...
May 23, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28532129/-131-i-traced-plga-lipid-nanoparticles-as-drug-delivery-carriers-for-the-targeted-chemotherapeutic-treatment-of-melanoma
#5
Haiyan Wang, Weizhong Sheng
Herein, folic acid (FA) conjugated Poly(d,l-lactide-co-glycolide) (PLGA)-lipid composites (FA-PL) were developed as nanocarriers for the targeted delivery of insoluble anti-cancer drug paclitaxel (PTX), resulting FA-PLP nanoparticles. Furthermore, (131)I, as a radioactive tracer, was used to label FA-PLP nanoparticles (FA-PLP-(131)I) to evaluate their cell uptake activity, in vivo blood circulation, and biodistribution. The FA-PLP-(131)I nanoparticles had a spherical morphology with great stability, a narrow size distribution (165...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28532114/hypocrellin-b-and-nano-silver-loaded-polymeric-nanoparticles-enhanced-generation-of-singlet-oxygen-for-improved-photodynamic-therapy
#6
Subramanian Natesan, Venkateshwaran Krishnaswami, Chandrasekar Ponnusamy, Madi Madiyalakan, Thomas Woo, Rajaguru Palanisamy
A nanoparticulate photodynamic approach was employed with an objective to achieve enhanced production of singlet oxygen ((1)O2), for the management of posterior segment eye diseases like age related macular degeneration. The hypocrellin B (HB) loaded poly lactide-co-glycolide nanoparticle formulations were incorporated with nano silver (HBS-NPs). The optimized HBS-NPs contained 2.60±0.06mg/mL of HB and showed (i) 135.6 to 828.2nm size range, and (ii) negative zeta potential with a narrow polydispersity index...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531265/utility-of-nonhuman-primates-in-substance-use-disorders-research
#7
Matthew L Banks, Paul W Czoty, Sidney S Negus
Substance use disorders (i.e., drug addiction) constitute a global and insidious public health issue. Preclinical biomedical research has been invaluable in elucidating the environmental, biological, and pharmacological determinants of drug abuse and in the process of developing innovative pharmacological and behavioral treatment strategies. For more than 70 years, nonhuman primates have been utilized as research subjects in biomedical research related to drug addiction. There are already several excellent published reviews highlighting species differences in both pharmacodynamics and pharmacokinetics between rodents and nonhuman primates in preclinical substance abuse research...
May 20, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28530128/in-vivo-endocrine-secretion-of-prostacyclin-following-expression-of-a-cox-1-pgis-fusion-protein-in-the-salivary-glands-of-rats-via-non-viral-gene-therapy
#8
Zhimin Wang, Raymond L Benza, Lee Zourelias, Angela Sanguino, Ramaz Geguchadze, Kelly J Shields, Changgong Wu, Kristin B Highland, Michael J Passineau
Pulmonary arterial hypertension is a progressive disease that culminates in right heart failure and death. Prostacyclin(PGI2) and its derivatives are effective treatments for PAH when administered as continuous parenteral infusions. This treatment paradigm requires medical sophistication, and patients are at risk for complications from an indewelling catheter; drug interruptions may result in rebound pulmonary hypertension and death. We hypothesized that the salivary gland can be repurposed into an endogenous production site for circulating PGI2 through the expression of a fusion protein embodying cyclooxygenase-1(Cox1) and prostacyclin synthase(PGIS) domains...
May 20, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28530056/-cutaneous-leishmaniasis-in-israel-2016-an-update
#9
REVIEW
Michal Solomon, Eli Schwartz
Leishmaniasis is endemic in Israel and is increasing in its frequency. The pathogens that cause cutaneous leishmaniasis (CL) in Israel are Leishmania major (L. major) and Leishmania tropica (L. tropica). In recent years, there have been significant changes in the distribution of these species. L. major is endemic mainly in the Negev, Arava and the Beit She'an Valley. L. tropica is endemic in Tiberias, northern Sea of Galilee, Samaria and in the vicinity of Jerusalem such as at Kfar Adumim, Ma'ale Adumim and Anathoth (north-east of Jerusalem)...
October 2016: Harefuah
https://www.readbyqxmd.com/read/28529633/noninvasive-assessment-of-elimination-and-retention-using-ct-fmt-and-kinetic-whole-body-modeling
#10
Wa'el Al Rawashdeh, Simin Zuo, Andrea Melle, Lia Appold, Susanne Koletnik, Yoanna Tsvetkova, Nataliia Beztsinna, Andrij Pich, Twan Lammers, Fabian Kiessling, Felix Gremse
Fluorescence-mediated tomography (FMT) is a quantitative three-dimensional imaging technique for preclinical research applications. The combination with micro-computed tomography (µCT) enables improved reconstruction and analysis. The aim of this study is to assess the potential of µCT-FMT and kinetic modeling to determine elimination and retention of typical model drugs and drug delivery systems. We selected four fluorescent probes with different but well-known biodistribution and elimination routes: Indocyanine green (ICG), hydroxyapatite-binding OsteoSense (OS), biodegradable nanogels (NG) and microbubbles (MB)...
2017: Theranostics
https://www.readbyqxmd.com/read/28528282/management-options-in-the-treatment-of-femoral-pseudoaneurysms-secondary-to-intravenous-drug-abuse-a-case-series
#11
James Rammell, Nisheeth Kansal, Vish Bhattacharya
INTRODUCTION: Infected femoral pseudoaneurysms are a common presentation in intravenous drug users with little consensus as to the optimum management of these patients. Whilst emergency revascularisation options are available, excision and ligation of the femoral artery remains the most common operative intervention but risks leaving the patient with critical ischaemia or intermittent claudication. This case series reviewed the outcomes of 4 patients who underwent excision-ligation without revascularisation of an infected femoral pseudoaneurysm at a district general hospital...
May 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28527194/biodistribution-and-excretion-of-colloidal-gold-nanoparticles-after-intravenous-injection-effects-of-particle-size
#12
Issei Takeuchi, Sho Nobata, Naoto Oiri, Keishiro Tomoda, Kimiko Makino
BACKGROUND: Inorganic gold nanoparticles (NPs) have a huge potential in targeted drug delivery. Simple preparation and surface modification procedure with their special physicochemical properties of gold NPs attract their use such as tumor targeting and the detection of cancerous cell. OBJECTIVE: Various studies were reported, however, details of biodistribution profile of gold NPs were not enough evaluated. We have studied biodistribution profile of gold NPs having various particle sizes (20, 50 and 100 nm)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28527109/erratum-to-clinical-pharmacokinetics-of-sacubitril-valsartan-lcz696-a-novel-angiotensin-receptor-neprilysin-inhibitor
#13
Surya Ayalasomayajula, Thomas Langenickel, Parasar Pal, Sreedevi Boggarapu, Gangadhar Sunkara
Sacubitril/valsartan (LCZ696) is indicated for the treatment of heart failure with reduced ejection fraction. Absorption of sacubitril/valsartan and conversion of sacubitril (prodrug) to sacubitrilat (neprilysin inhibitor) was rapid with maximum plasma concentrations of sacubitril, sacubitrilat, and valsartan (angiotensin receptor blocker) reaching within 0.5, 1.5-2.0, and 2.0-3.0 h, respectively. With a twofold increase in dose, an increase in the area under the plasma concentration-time curve was proportional for sacubitril, ~1...
May 19, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28526884/combined-use-of-metformin-and-atorvastatin-attenuates-atherosclerosis-in-rabbits-fed-a-high-cholesterol-diet
#14
Fei Luo, Yuan Guo, Gui-Yun Ruan, Jun-Ke Long, Xi-Long Zheng, Qin Xia, Shui-Ping Zhao, Dao-Quan Peng, Zhen-Fei Fang, Xiang-Ping Li
Statins are widely used to reduce cardiovascular risk. Unfortunately, some patients still experience cardiovascular events though prescribed with high-intensity statins. Metformin, an anti-diabetic drug, was reported to possess anti-atherosclerotic effects. Therefore, the experiments were designed to evaluate whether combined use of metformin and atorvastatin can achieve additional benefits. In rabbits fed a high-cholesterol diet, we evaluated the effects of the combination therapy on atherosclerotic plaques, lipid profiles, blood glucose levels, liver and kidney functions...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526153/pharmacology-of-octreotide-clinical-implications-for-anesthesiologists-and-associated-risks
#15
REVIEW
Reza M Borna, Jonathan S Jahr, Susanna Kmiecik, Ken F Mancuso, Alan D Kaye
Many patients presenting with a history of foregut, midgut neuroendocrine tumors (NETs) or carcinoid syndrome can experience life-threatening carcinoid crises during anesthesia or surgery. Clinicians should understand the pharmacology of octreotide and appreciate the use of continuous infusions of high-dose octreotide, which can minimize intraoperative carcinoid crises. We administer a prophylactic 500-μg bolus of octreotide intravenously (IV) and begin a continuous infusion of 500 μg/h for all NET patients...
June 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/28525981/combination-of-gabapentin-and-ramosetron-for-the-prevention-of-postoperative-nausea-and-vomiting-after-gynecologic-laparoscopic-surgery-a-prospective-randomized-comparative-study
#16
Kyung Mi Kim, Jin Huh, Soo Kyung Lee, Eun Young Park, Jung Min Lee, Hyo Ju Kim
BACKGROUND: As a drug originally introduced for its anticonvulsant effects, gabapentin has been recently shown to be effective in the treatment of nausea and vomiting in various clinical settings. This study compared the antiemetic efficacy of oral gabapentin, intravenous ramosetron and gabapentin plus ramosetron in patients receiving fentanyl-based patient-controlled analgesia after laparoscopic gynecologic surgery. METHODS: One hundred and thirty two patients undergoing laparoscopic gynecologic surgery under general anesthesia were allocated randomly into three groups: group G received 300 mg oral gabapentin 1 h before anesthesia, group R received 0...
May 19, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28524738/selexipag-a-selective-prostacyclin-receptor-agonist-in-pulmonary-arterial-hypertension-a-pharmacology-review
#17
Jesús Honorato Pérez
Pulmonary hypertension is defined by a mean pulmonary artery pressure ≥25 mm Hg at rest. Management of pulmonary arterial hypertension (PAH) includes specific drug therapy with calcium channel blockers in vasoreactive patients, or drugs approved for PAH in non-reactive patients that target the endothelin, nitric-oxide and prostacyclin pathways. Areas covered: The review covers receptor selectivity, pharmacokinetics, pharmacodynamics and adverse effects (AEs) of intravenous (IV) epoprostenol (synthetic prostacyclin); the prostacyclin analogs iloprost, beraprost, and treprostinil administered by IV, subcutaneous, inhaled or oral routes; and the oral selective prostacyclin receptor agonist selexipag...
May 19, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28523450/a-review-of-the-clinical-pharmacokinetics-pharmacodynamics-and-immunogenicity-of-vedolizumab
#18
REVIEW
Maria Rosario, Nathanael L Dirks, Catherine Milch, Asit Parikh, Michael Bargfrede, Tim Wyant, Eric Fedyk, Irving Fox
Vedolizumab is a humanized anti-α4β7 integrin monoclonal antibody that selectively blocks trafficking of memory T cells to inflamed gut tissue by inhibiting the α4β7-mucosal addressin cell adhesion molecule-1 (MAdCAM-1) interaction. Approved for treating patients with moderately to severely active ulcerative colitis (UC) or Crohn's disease (CD), vedolizumab is administered as a 300 mg intravenous infusion. Vedolizumab undergoes a rapid, saturable, non-linear, target-mediated elimination process at low concentrations and a slower, linear, non-specific elimination process at higher concentrations...
May 18, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28523017/antibiotic-susceptibility-in-commonly-isolated-pathogens-from-urinary-tract-infection-in-a-cohort-of-subjects-from-low-socioeconomic-strata
#19
Saera Suhail Kidwai, Ayesha Nageen, Samina Ghaznavi, Farhat Bashir, Jamal Ara
BACKGROUND AND OBJECTIVE: Urinary tract infection is one of the commonest infections seen in clinical practice. Lack of compliance and unjustified antibiotic prescriptions has resulted in bacterial resistance and is proving as a major challenge in the management of these infections. Our aim was to identify the sensitivity pattern of commonly used antibiotics against urinary tract infections so as to suggest an improvised line of action against bacteria causing urinary tract infections'...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28522911/study-of-the-effects-of-nesfatin-1-on-gastric-function-in-obese-rats
#20
Guo-Tao Yang, Hong-Ying Zhao, Yu Kong, Ning-Ning Sun, Ai-Qin Dong
AIM: To investigate the effects of nesfatin-1 on gastric function in obese rats. METHODS: The obese rat model was induced by a high-fat diet. The gastric emptying rate and gastric acid secretory capacity of the rats were determined after treatment with different drug concentrations of nesfatin-1 and administration routes. Based on this, the expression of H+/K+-ATPase was measured using RT-PCR and western blot to preliminarily explore the mechanism of gastric acid secretion changes...
April 28, 2017: World Journal of Gastroenterology: WJG
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