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https://www.readbyqxmd.com/read/28346967/anticoagulation-therapy-in-children
#1
Vlad Calin Radulescu
Venous thromboembolism (VTE) is very uncommon in children and adolescents compared with older adults, though its incidence has significantly increased over the past two decades. Given the rarity of the condition, the data on pediatric VTE lag behind the adult experience and consequently the management of VTE in children is, in large part, modeled on the adult strategies. This approach has certain limitations, given that young children have developmental particularities of the hemostatic system and differences in the pharmacokinetics and pharmacodynamics of various anticoagulant agents...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346200/compatibility-and-stability-of-rolapitrant-injectable-emulsion-admixed-with-intravenous-palonsetron-hydrochloride
#2
George Wu, Stanley Yeung, Frank Chen
Neurokinin-1 receptor antagonist, 5-hydroxytryptamine-3 RA, and dexamethasone combination therapy is standard of care for the prevention of chemotherapy-induced nausea and vomiting. Herein we describe the physical and chemical stability of rolapitant injectable emulsion 166.5 mg in 92.5 mL (185 mg hydrochloride salt) admixed with palonosetron injection 0.25 mg in 5 mL (0.28 mg hydrochloride salt). Admixtures were prepared and stored in two types of container closures (110-mL Crystal Zenith plastic and glass bottles) and four types of intravenous administration sets (or intravenous tubing sets)...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28345025/optimization-of-a-neural-stem-cell-mediated-carboxylesterase-irinotecan-gene-therapy-for-metastatic-neuroblastoma
#3
Margarita Gutova, Leanne Goldstein, Marianne Metz, Anahit Hovsepyan, Lyudmila G Tsurkan, Revathiswari Tirughana, Lusine Tsaturyan, Alexander J Annala, Timothy W Synold, Zesheng Wan, Robert Seeger, Clarke Anderson, Rex A Moats, Philip M Potter, Karen S Aboody
Despite improved survival for children with newly diagnosed neuroblastoma (NB), recurrent disease is a significant problem, with treatment options limited by anti-tumor efficacy, patient drug tolerance, and cumulative toxicity. We previously demonstrated that neural stem cells (NSCs) expressing a modified rabbit carboxylesterase (rCE) can distribute to metastatic NB tumor foci in multiple organs in mice and convert the prodrug irinotecan (CPT-11) to the 1,000-fold more toxic topoisomerase-1 inhibitor SN-38, resulting in significant therapeutic efficacy...
March 17, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28343210/periodic-fever-aphthous-stomatitis-pharyngitis-and-cervical-adenitis-pfapa-syndrome-in-children
#4
Vira B Semianchuk
INTRODUCTION: Periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis (PFAPA) syndrome refers to a group of primary immunodeficiencies, namely autoinflammatory diseases. Most pediatricians and otolaryngologists do not suspect PFAPA syndrome when treating recurrent pharyngitis (according to Ukrainian classification - tonsillitis) and stomatitis. Therefore, patients with a given syndrome receive unnecessary treatment (antibiotic therapy or antiviral drugs) and the diagnosis is made late...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28342192/intravenous-versus-non-intravenous-benzodiazepines-for-the-abortion-of-seizures-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#5
Abdussalam Alshehri, Ahmad Abulaban, Rakan Bokhari, Suleiman Kojan, Majid Alsalamah, Mazen Ferwana, Mohammad Hassan Murad
BACKGROUND: The acquisition of intravenous access in the actively convulsing patient is difficult. This often delays the administration of the intravenous benzodiazepine necessary for seizure abortion. Delays in seizure abortion are associated with increased pharmacoresistance, increased risk of neuronal injury, worse patient outcomes and increased morbidity. OBJECTIVE: To assess whether the delay imposed by IV access acquisition is justified by improved outcomes...
March 25, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28340198/reasons-to-wait-or-to-treat-naive-patients-affected-by-chronic-hepatitis-c-with-low-fibrosis-stage-and-genotypes-2-or-3
#6
Lucio Boglione, Jessica Cusato, Giuseppe Cariti, Giovanni Di Perri, Antonio D'Avolio
New interferon (IFN)-free therapies are not currently available for all patients with chronic hepatitis C due to higher costs; in Italy, patients with genotype 2 (GT2) or GT3 without severe fibrosis can choose between wait or treatment with pegylated (PEG)-IFN and ribavirin. This study wants to examine the real rate of patients that accept or refused this therapy and the reasons related to decision. This prospective, observational analysis was performed at our centre between January 2014 and June 2015. Epidemiological, social and clinical data were collected in medical records; reasons for treatment acceptance/refusal were recorded through a questionnaire...
March 10, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28336458/nile-red-nanosuspensions-as-investigative-model-to-study-the-follicular-targeting-of-drug-nanocrystals
#7
Francesco Corrias, Michele Schlich, Chiara Sinico, Rosa Pireddu, Donatella Valenti, Anna Maria Fadda, Salvatore Marceddu, Francesco Lai
The strategy of formulating poorly soluble actives as nanosuspension has been explored by more than a thousand research papers, with some medicinal products for oral and intravenous use having reached the market or advanced clinical trials. Interestingly, there is a limited number of reports of nanosuspensions formulated for dermal and transdermal drug delivery. In the present work, a nanocrystals suspension of the fluorescent, water-insoluble dye Nile Red, is prepared through a media milling technique and exploited to characterize the fate of the nanosuspended drug when applied on the skin...
March 20, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28335566/profiling-and-preparation-of-metabolites-from-pyragrel-in-human-urine-by-online-solid-phase-extraction-coupled-with-high-performance-liquid-chromatography-tandem-mass-spectrometry-followed-by-a-macroporous-resin-based-purification-approach
#8
Xin Zhao, Jingjing Jiang, Guang Yang, Jie Huang, Guoping Yang, Guangwei He, Zhaoxing Chu, Taijun Hang, Guorong Fan
Pyragrel, a new anticoagulant drug, is derived from the molecular combination of ligustrazine and ferulic acid. Pyragrel showed significant inhibitory activity against platelet aggregation induced by adenosine diphosphate (ADP), and had been approved for a phase I clinical trial by CFDA. To characterize the metabolites of Pyragrel in human urine after intravenous administration, a reliable online solid-phase extraction couple with high performance liquid chromatography tandem mass spectrometry (online SPE-HPLC-MS(n)) method was conceived and applied...
March 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335531/associations-among-substance-use-mental-health-disorders-and-self-harm-in-a-prison-population-examining-group-risk-for-suicide-attempt
#9
Madison L Gates, Asher Turney, Elizabeth Ferguson, Veronica Walker, Michelle Staples-Horne
Substance use disorders (SUD) and mental health disorders are significant public health issues that co-occur and are associated with high risk for suicide attempts. SUD and mental health disorders are more prevalent among offenders (i.e., prisoners or inmates) than the non-imprisoned population, raising concerns about the risk of self-harm. This cross-sectional study examined the population of a state prison system (10,988 out of 13,079) to identify associations among SUD (alcohol, cannabis, intravenous drugs, narcotics, and tobacco smoking), mental health disorders (anxiety, bipolar, depression, and psychotic disorders), and suicide attempts...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28335244/human-serum-albumin-nanoparticles-for-use-in-cancer-drug-delivery-process-optimization-and-in-vitro-characterization
#10
Nikita Lomis, Susan Westfall, Leila Farahdel, Meenakshi Malhotra, Dominique Shum-Tim, Satya Prakash
Human serum albumin nanoparticles (HSA-NPs) are widely-used drug delivery systems with applications in various diseases, like cancer. For intravenous administration of HSA-NPs, the particle size, surface charge, drug loading and in vitro release kinetics are important parameters for consideration. This study focuses on the development of stable HSA-NPs containing the anti-cancer drug paclitaxel (PTX) via the emulsion-solvent evaporation method using a high-pressure homogenizer. The key parameters for the preparation of PTX-HSA-NPs are: the starting concentrations of HSA, PTX and the organic solvent, including the homogenization pressure and its number cycles, were optimized...
June 15, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333680/physical-and-chemical-stability-of-urapidil-in-0-9-sodium-chloride-in-elastomeric-infusion-pump
#11
Cristina Tomasello, Anna Leggieri, Franco Rabbia, Franco Veglio, Lorena Baietto, Chiara Fulcheri, Amedeo De Nicolò, Giovanni De Perri, Antonio D'Avolio
Urapidil is an antihypertensive agent, usually administered through intravenous bolus injection, slow-intravenous infusion, or continuous-drug infusion by perfusor. Since to date no evidences are available on drug stability in elastomeric pumps, patients have to be hospitalized. The purpose of this study was to validate an ultra-performance liquid chromatographic method to evaluate urapidil stability in an elastomeric infusion pump, in order to allow continuous infusion as home-care treatment. Analyses were conducted by diluting urapidil in an elastomeric pump...
July 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333677/y-site-physical-compatibility-of-beta-blocker-infusions-with-intensive-care-unit-admixtures
#12
Jaime A Foushee, Pmichaele Meredith, Laura M Fox, EdwardE Grace
Parenteral beta-blocker therapy via continuous infusion has shown promising results for improved outcomes for patients with septic shock. As patients with septic shock may require multiple intravenous medications, compatibility is necessary to co-infuse these medications through a y-site connector. The purpose of this study was to examine the physical compatibility of select intravenous drugs used for patients with septic shock combined with various intravenous beta-blockers including esmolol, labetalol, and metoprolol through a simulated y-site infusion...
July 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333664/compatibility-of-norepinephrine-bitartrate-with-levofloxacin-and-moxifloxacin-during-simulated-y-site-administration
#13
Vicky Mody, Samit Shah, Jaymin Patel, Michael C Thomas
The purpose of this study was to determine the physical compatibility and chemical stability of norepinephrine bitartrate with selected fluoroquinolones during simulated intravenous Y-site administration. Simulation of Y-compatibility of intravenous fluids can be experimentally demonstrated by mixing equal volumes of two drugs of interest. Hence, we prepared 1:1 mixture of norepinephrine bitartrate and levofloxacin or moxifloxacin by mixing 64 .g/mL of norepinephrine bitartrate individually with clinically relevant concentrations of levofloxacin (5 mg/mL) and moxifloxacin (1...
May 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28331448/antibody-mediated-rejection-a-review
#14
Jorge Carlos Garces, Sixto Giusti, Catherine Staffeld-Coit, Humberto Bohorquez, Ari J Cohen, George E Loss
BACKGROUND: Chronic antibody injury is a serious threat to allograft outcomes and is therefore the center of active research. In the continuum of allograft rejection, the development of antibodies plays a critical role. In recent years, an increased recognition of molecular and histologic changes has provided a better understanding of antibody-mediated rejection (AMR), as well as potential therapeutic interventions. However, several pathways are still unknown, which accounts for the lack of efficacy of some of the currently available agents that are used to treat rejection...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28331317/cyclic-rgd-peptide-modified-liposomal-drug-delivery-system-for-targeted-oral-apatinib-administration-enhanced-cellular-uptake-and-improved-therapeutic-effects
#15
Zhiwang Song, Yun Lin, Xia Zhang, Chan Feng, Yonglin Lu, Yong Gao, Chunyan Dong
Apatinib is an oral tyrosine kinase inhibitor, which selectively targets vascular endothelial growth factor receptor 2 and has the potential to treat many tumors therapeutically. Cyclic arginylglycylaspartic acid (cRGD)- and polyethylene glycol (PEG)-modified liposomes (cRGD-Lipo-PEG) were constructed to act as a targeted delivery system for the delivery of apatinib to the human colonic cancer cell line, HCT116. These cRGD-modified liposomes specifically recognized integrin αvβ3 and exhibited greater uptake efficiency with respect to delivering liposomes into HCT116 cells when compared to nontargeted liposomes (Lipo-PEG), as well as greater death of tumor cells and apoptosis...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28331308/highly-effective-photothermal-chemotherapy-with-ph-responsive-polymer-coated-drug-loaded-melanin-like-nanoparticles
#16
Chengwei Zhang, Xiaozhi Zhao, Suhan Guo, Tingsheng Lin, Hongqian Guo
Dopamine is a neurotransmitter commonly used in clinical treatment. Polydopamine (PDA) has excellent histocompatibility and biosafety and can efficiently convert near-infrared reflection (NIR) to thermal energy. In this study, PDA was used as a promising carrier, and pH-responsive polymer-coated drug-loaded PDA nanoparticles (NPs; doxorubicin@ poly(allylamine)-citraconic anhydride [Dox@PAH-cit]/PDA NPs) were developed. As expected, the Dox@PAH-cit/PDA NPs exhibited excellent photothermal efficiency. In addition, at a low pH condition, the loaded Dox was released from the NPs due to the amide hydrolysis of PAH-cit...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28329944/-evolutionary-characteristics-and-positive-selection-site-of-hepatitis-c-virus-isolated-in-intravenous-drug-users-in-pudong-new-district-shanghai
#17
Y Wang, H Y Wu, X C Zhao, W P Zhu, Q Wan, Y H Lu, Q W Jiang
Objective: To understand the genotypes of hepatitis C virus (HCV) circulating in intravenous drug users (IDUs) in Pudong new district, Shanghai, and explore the population growth and selection pressure of the HCV strains isolated. Methods: A total of 200 serum specimens sampled from IDUs in local methadone maintenance treatment clinic in Pudong were used for amplification of a HCV NS5B 377-nt partial sequence. Mean evolutionary rate and effective number of infections were estimated based on the 377-nt partial sequences of the HCV strains isolated from IDUs and isolated contemporarily from local voluntary blood donors, men who have sex with men and reported hepatitis C cases by using BEAST software...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329443/analyzing-the-potential-root-causes-of-variability-of-pharmacokinetics-in-preclinical-species
#18
Pierre Daublain, Kung-I Feng, Michael D Altman, Iain Martin, Suman Mukherjee, Rebecca Nofsinger, Alan B Northrup, Richard Tschirret-Guth, Mark Cartwright, Caroline McGregor
The purpose of this research was to assess variability in pharmacokinetic profiles (PK variability) in preclinical species and identify the risk factors associated with the properties of a drug molecule that contribute to the variability. Exposure data in mouse, rat, dog and monkey for a total of 16,592 research compounds studied between 1999 and 2013 were included in the analysis. Both in vivo study parameters and in silico/experimental physicochemical properties of the molecules were analyzed. Areas under the plasma concentration vs...
March 22, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28328762/a-significant-influence-of-metronidazole-on-busulfan-pharmacokinetics-a-case-report-of-therapeutic-drug-monitoring
#19
Hyewon Chung, Kyung-Sang Yu, Kyung Taek Hong, Jung Yoon Choi, Che Ry Hong, Hyoung Jin Kang, Kyung Duk Park, Hee Young Shin, SeungHwan Lee
Busulfan is a cytotoxic agent used in preconditioning for hematopoietic stem cell transplantation (HSCT). Therapeutic drug monitoring of busulfan is necessary owing to its narrow therapeutic range. Patients undergoing preconditioning are susceptible to infection and might require co-administration of antibiotics. We present a case study of a three-year-old girl with precursor T-cell acute lymphoblastic leukemia who received intravenous busulfan before HSCT. Metronidazole was co-administered before the third dose of busulfan because of Clostridium difficile infection...
March 21, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28328695/effect-of-biperiden-treatment-in-acute-orofacial-and-extremity-dyskinesia-with-methylphenidate-therapy
#20
Elif Acar Arslan, Erhan Arslan, Anil Kilinç, Özkan Göksu
Methylphenidate is a stimulant drug commonly prescribed to individuals with attention-deficit/hyperactivity disorder. The suggested underlying mechanism of acute dyskinesias is dopaminergic transmission increase. We describe a 9-year-old boy with a diagnosis of attention-deficit/hyperactivity disorder admitted to emergency clinic with primarily orofacial and extremity dyskinesia after administration of a first dose of 18 mg OROS (osmotic [controlled] release oral) methylphenidate (Concerta). OROS methylphenidate was discontinued, and the patient's symptoms resolved within 20 minutes after injection of biperiden by intravenous route (0...
March 21, 2017: Pediatric Emergency Care
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