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https://www.readbyqxmd.com/read/28213844/self-nanoemulsified-drug-delivery-system-of-hydrochlorothiazide-for-increasing-dissolution-rate-and-diuretic-activity
#1
Cassiana Mendes, Aline Buttchevitz, Jéssica Henriques Kruger, Thiago Caon, Patricia de Oliveira Benedet, Elenara Lemos-Senna, Marcos Antônio Segatto Silva
Hydrochlorothiazide (HCTZ) is a class IV drug according to the Biopharmaceutical Classification System. This study aimed the development of self-nanoemulsifying drug delivery system (SNEDDS) for HCTZ as an approach to overcome the biopharmaceutical limitations. Pre-formulation screening and ternary phase diagrams were carried out to select the oil phase, the surfactant, and the co-surfactant as the amount of each constituent. The optimized formulations, with reduced amount of surfactant, and composed of medium chain triglycerides, Cremophor EL and Transcutol P did not affect the pH or show drug incompatibilities...
February 17, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28213717/the-minor-collagens-in-articular-cartilage
#2
REVIEW
Yunyun Luo, Dovile Sinkeviciute, Yi He, Morten Karsdal, Yves Henrotin, Ali Mobasheri, Patrik Önnerfjord, Anne Bay-Jensen
Articular cartilage is a connective tissue consisting of a specialized extracellular matrix (ECM) that dominates the bulk of its wet and dry weight. Type II collagen and aggrecan are the main ECM proteins in cartilage. However, little attention has been paid to less abundant molecular components, especially minor collagens, including type IV, VI, IX, X, XI, XII, XIII, and XIV, etc. Although accounting for only a small fraction of the mature matrix, these minor collagens not only play essential structural roles in the mechanical properties, organization, and shape of articular cartilage, but also fulfil specific biological functions...
February 17, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28213593/randomised-double-blind-parallel-group-placebo-controlled-study-to-evaluate-the-analgesic-efficacy-and-safety-of-vvz-149-injections-for-postoperative-pain-following-laparoscopic-colorectal-surgery
#3
Srdjan S Nedeljkovic, Darin J Correll, Xiaodong Bao, Natacha Zamor, Jose L Zeballos, Yi Zhang, Mark J Young, Johanna Ledley, Jessica Sorace, Kristen Eng, Carlyle P Hamsher, Rajivan Maniam, Jonathan W Chin, Becky Tsui, Sunyoung Cho, Doo H Lee
INTRODUCTION: In spite of advances in understanding and technology, postoperative pain remains poorly treated for a significant number of patients. In colorectal surgery, the need for developing novel analgesics is especially important. Patients after bowel surgery are assessed for rapid return of bowel function and opioids worsen ileus, nausea and constipation. We describe a prospective, double-blind, parallel group, placebo-controlled randomised controlled trial testing the hypothesis that a novel analgesic drug, VVZ -149, is safe and effective in improving pain compared with providing opioid analgesia alone among adults undergoing laparoscopic colorectal surgery...
February 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28213005/is-clarithromycin-a-potential-treatment-for-cachexia-in-people-with-lung-cancer-a-feasibility-study
#4
Sarah Awan, Vincent Crosby, Vanessa Potter, Ivo Hennig, David Baldwin, Mehluli Ndlovu, Sharon Paradine, Andrew Wilcock
Clarithromycin may improve cachexia and survival in non-small cell lung cancer (NSCLC), but adequately controlled data are lacking. This study was undertaken primarily to inform the feasibility and scale of a phase III trial. Eligible consenting patients with stage IV NSCLC and cachexia were to be randomized to receive either clarithromycin 250mg twice daily or placebo for eight weeks. Aspects of trial feasibility recorded included numbers eligible, approached and recruited, together with adherence and completion of treatment and assessments...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28212147/monitoring-hospitalized-adult-patients-for-opioid-induced-sedation-and-respiratory-depression
#5
Carla R Jungquist, Kirsten Smith, Kelly L Wiltse Nicely, Rosemary C Polomano
: Opioid analgesics are commonly administered to hospitalized patients to treat acute pain, but these drugs put patients at risk for serious adverse events, such as unintended advancing sedation, respiratory depression, and death. Nurses play an important role in keeping patients safe by making clinical decisions about the frequency and intensity with which patients receiving IV and epidural opioids should be monitored. To make sound clinical judgments, nurses must be aware of the factors that place patients at elevated risk for adverse opioid-related effects and know how to screen and assess patients for these risks...
March 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28205096/pharmacological-effects-of-asiatic-acid-in-glioblastoma-cells-under-hypoxia
#6
Flourina Kumar Thakor, Ka-Wai Wan, Philip John Welsby, Gail Welsby
Glioblastoma multiforme is the most common and malignant primary brain tumor in adults. Despite current treatment options including surgery followed by radiation and chemotherapy with temozolomide and cisplatin, the median survival rate remains low (<16 months). Combined with increasing drug resistance and the inability of some compounds to cross the blood-brain barrier, novel compounds are being sought for the treatment of this disease. Here, we aimed to examine the pharmacological effect of Asiatic acid (AA) in glioblastoma under hypoxia...
February 15, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28204967/advantageous-solubility-permeability-interplay-when-using-amorphous-solid-dispersion-asd-formulation-for-the-bcs-class-iv-p-gp-substrate-rifaximin-simultaneous-increase-of-both-the-solubility-and-the-permeability
#7
Avital Beig, Noa Fine-Shamir, David Lindley, Jonathan M Miller, Arik Dahan
Rifaximin is a BCS class IV (low-solubility, low-permeability) drug and also a P-gp substrate. The aims of this work were to assess the efficiency of different rifaximin amorphous solid dispersion (ASDs) formulations in achieving and maintaining supersaturation and to investigate the consequent solubility-permeability interplay. Spray-dried rifaximin ASDs were prepared with different hydrophilic polymers and their ability to achieve and maintain supersaturation was assessed. Then, rifaximin's apparent intestinal permeability was investigated as a function of increasing supersaturation both in vitro using the parallel artificial membrane permeability assay (PAMPA) and in vivo using the single-pass rat intestinal perfusion (SPIP) model...
February 15, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28202353/the-potential-clinical-promise-of-multimodality-metronomic-chemotherapy-revealed-by-preclinical-studies-of-metastatic-disease
#8
Robert S Kerbel, Yuval Shaked
We present a rationale for further clinical development and assessment of metronomic chemotherapy on the basis of unexpected results obtained in translational mouse models of cancer involving treatment of advanced metastatic disease. Historically, mouse cancer therapy models have been dominated by treating established primary tumors or early stage low volume microscopic disease. Treatment of primary tumors is also almost always the case when using genetically engineered mouse models (GEMMS) of cancer or patient-derived xenografts (PDXs)...
February 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28202328/discovery-of-hyaluronidase-inhibitors-from-natural-products-and-their-mechanistic-characterization-under-dmso-perturbed-assay-conditions
#9
Keisuke Tomohara, Tomohiro Ito, Saika Onikata, Atsushi Kato, Isao Adachi
The present study discovered four novel hyaluronan-degrading enzyme (hyaluronidase) inhibitors including chikusetsusaponins and catechins through the activity-guided separation of Panax japonicus and Prunus salicina, respectively. Although the discovery resulted in identification of usual frequent hitters, subsequent mechanistic characterizations under our DMSO-perturbed assay conditions and related protocols revealed that chikusetusaponin IV would serve as an aggregating and non-specific binding inhibitor, while (-)-epicatechin would interact specifically with enzyme at the catalytic site or more likely at a kind of catechin-binding site with a relatively week inhibitory activity...
January 31, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28202004/a-phase-ii-study-to-evaluate-ly2603618-in-combination-with-gemcitabine-in-pancreatic-cancer-patients
#10
Berta Laquente, Jose Lopez-Martin, Donald Richards, Gerald Illerhaus, David Z Chang, George Kim, Philip Stella, Dirk Richel, Cezary Szcylik, Stefano Cascinu, G L Frassineti, Tudor Ciuleanu, Karla Hurt, Scott Hynes, Ji Lin, Aimee Bence Lin, Daniel Von Hoff, Emiliano Calvo
BACKGROUND: The aim of this study was to determine whether checkpoint kinase 1 inihibitor (CHK1), LY2603618, and gemcitabine prolong overall survival (OS) compared to gemcitabine alone in patients with unresectable pancreatic cancer. METHODS: Patients with Stage II-IV locally advanced or metastatic pancreatic cancer were randomized (2:1) to either 230 mg of LY2603618/1000 mg/m(2) gemcitabine combined or 1000 mg/m(2) gemcitabine alone. OS was assessed using both a Bayesian augment control model and traditional frequentist analysis for inference...
February 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28199070/randomized-controlled-trial-comparing-exercise-to-health-education-for-stimulant-use-disorder-results-from-the-ctn-0037-stimulant-reduction-intervention-using-dosed-exercise-stride-study
#11
Madhukar H Trivedi, Tracy L Greer, Chad D Rethorst, Thomas Carmody, Bruce D Grannemann, Robrina Walker, Diane Warden, Kathy Shores-Wilson, Mark Stoutenberg, Neal Oden, Meredith Silverstein, Candace Hodgkins, Lee Love, Cindy Seamans, Angela Stotts, Trey Causey, Regina P Szucs-Reed, Paul Rinaldi, Hugh Myrick, Michele Straus, David Liu, Robert Lindblad, Timothy Church, Steven N Blair, Edward V Nunes
OBJECTIVE: To evaluate exercise as a treatment for stimulant use disorders. METHODS: The STimulant Reduction Intervention using Dosed Exercise (STRIDE) study was a randomized clinical trial conducted in 9 residential addiction treatment programs across the United States from July 2010 to February 2013. Of 497 adults referred to the study, 302 met all eligibility criteria, including DSM-IV criteria for stimulant abuse and/or dependence, and were randomized to either a dosed exercise intervention (Exercise) or a health education intervention (Health Education) control, both augmenting treatment as usual and conducted thrice weekly for 12 weeks...
February 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28198173/delphi-based-study-and-analysis-of-key-risk-factors-for-invasive-fungal-infection-in-haematological-patients
#12
L Vázquez, M Salavert, J Gayoso, M Lizasoaín, I Ruiz Camps, N Di Benedetto
OBJECTIVE: Mortality caused by invasive fungal infections due to filamentous fungi (IFI-FF) is high. Predisposing factors to IFI-FF are multiple and should be stratified. The objective of this study was to identify key risk factors for IFI-FF in onco-haematological patients in different clinical settings. METHODS: Prospective national Delphi study. Risk factors for IFI-FF in patients with onco-haematological diseases were identified by a systematic review of the literature...
February 14, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28196306/effects-of-isoflurane-anesthesia-and-intravenous-morphine-self-administration-on-regional-glucose-metabolism-18-f-fdg-pet-of-male-sprague-dawley-rats
#13
Thomas Y Park, Kevin S Nishida, Colin M Wilson, Shalini Jaiswal, Jessica Scott, Andrew R Hoy, Reed G Selwyn, Bernard J Dardzinski, Kwang H Choi
Although certain drugs of abuse are known to disrupt brain glucose metabolism (BGluM), the effects of opiates on BGluM are not well characterized. Moreover, preclinical positron emission tomography (PET) studies anesthetize animals during the scan, which limits clinical applications. We investigated the effects of 1) isoflurane anesthesia and 2) intravenous morphine self-administration (MSA) on BGluM in rats. Jugular vein cannulated adult male Sprague-Dawley rats self-administered either saline (SSA) or morphine (0...
February 14, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28195640/subcutaneous-unfractionated-heparin-for-the-initial-treatment-of-venous-thromboembolism
#14
REVIEW
Lindsay Robertson, James Strachan
BACKGROUND: Venous thromboembolism (VTE) is a prevalent and serious condition. Its medical treatment requires anticoagulation, usually with either unfractionated or low molecular weight heparin (LMWH). Administration of unfractionated heparin (UFH) is usually intravenous (IV) but can be subcutaneous as well. This is an update of a review first published in 2009. OBJECTIVES: To assess the effects of subcutaneous UFH versus intravenous UFH, subcutaneous LMWH or any other anticoagulant drug for the initial treatment of venous thromboembolism...
February 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28192978/in-vitro-functional-quality-characterization-of-nota-modified-somatropins
#15
Nathalie Bracke, Han Yao, Evelien Wynendaele, Frederick Verbeke, Xiaolong Xu, Bert Gevaert, Alex Maes, Christophe Van de Wiele, Mike Sathekge, Sarah De Saeger, Bart M J De Spiegeleer
Chemical modifications on protein biopharmaceuticals introduce extra variability in addition to their inherent complexity, hence require more comprehensive analytical and functional characterization during their discovery, development and manufacturing. Somatropin (i.e. recombinant human growth hormone, rhGH) modified with the chelating agent S-2-(4-isothiocyanatobenzyl)-1,4,7-triazacyclononane-1,4,7-triacetic acid (p-SCN-Bn-NOTA) allows the incorporation of radiometals for research and possible theranostic purposes...
January 31, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28192951/identification-and-quantification-of-intravenous-therapy-drugs-using-normal-raman-spectroscopy-and-electrochemical-surface-enhanced-raman-spectroscopy
#16
Stephanie Zaleski, Kathleen A Clark, Madison M Smith, Jan Y Eilert, Mark Doty, Richard P Van Duyne
Errors in intravenous (IV) drug therapies can cause human harm and even death. There are limited label-free methods that can sensitively monitor the identity and quantity of the drug being administered. Normal Raman spectroscopy (NRS) provides a modestly sensitive, label-free, and completely noninvasive means of IV drug sensing. In the case that the analyte cannot be detected within its clinical range with Raman, a label-free surface-enhanced Raman spectroscopy (SERS) approach can be implemented to detect the analyte of interest...
January 30, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28190981/the-role-of-intraperitoneal-carboplatin-as-consalidation-chemotherapy-in-women-with-ovarian-carcinoma-report-of-our-experience-and-systematic-review
#17
Azamsadat Mousavi, Mojgan Karimi-Zarchi, Nadere Behtash, Mitra Modares-Gilani, Mahnaz Mokhtari-Gorgani, Nili Mehrdad, Mitra Rouhi, Pouria Yazdian Anari
BACKGROUND: Epithelial ovarian cancer is the leading cause of death from gynecology malignancy. The aim of this study was to assess the role of intraperitoneal chemotherapy with carboplatin, as a consolidative treatment, in reducing relapse and increasing survival of patients in advanced epithelial ovarian cancers, as well as evaluation of its toxicity. METHODS: This clinical trial was conducted on 30 patients with epithelial ovarian cancer in stages II-IV in Gynecology oncology department in Valiasr University Hospital, Tehran during 2005-2010...
December 2016: International Journal of Biomedical Science: IJBS
https://www.readbyqxmd.com/read/28190698/therapeutic-effects-of-cannabinoids-in-animal-models-of-seizures-epilepsy-epileptogenesis-and-epilepsy-related-neuroprotection
#18
REVIEW
Evan C Rosenberg, Pabitra H Patra, Benjamin J Whalley
The isolation and identification of the discrete plant cannabinoids in marijuana revived interest in analyzing historical therapeutic claims made for cannabis in clinical case studies and anecdotes. In particular, sources as old as the 11th and 15th centuries claimed efficacy for crude marijuana extracts in the treatment of convulsive disorders, prompting a particularly active area of preclinical research into the therapeutic potential of plant cannabinoids in epilepsy. Since that time, a large body of literature has accumulated describing the effects of several of the >100 individual plant cannabinoids in preclinical models of seizures, epilepsy, epileptogenesis, and epilepsy-related neuroprotection...
February 9, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28188463/evaluation-of-psychometric-properties-of-the-second-version-of-the-taqwa-piety-questionnaire-in-bahasa-melayu
#19
Tahereh Seghatoleslam, Hussain Habil, Ahmad Hatim, Abolfazl Ardakani, Khafidz Ishak, Rusdi Rashid
The aim of the study is to evaluate the psychometric properties of the Bahasa Melayu version of the Taqwa (piety) questionnaire, used for the measurement of behaviour of Drug Dependency Syndrome (DDS), in Malay patients. A sample of 98 males with a psychiatric diagnosis (DSM-IV-R) as the DDS was randomly selected from Kajang Khafidz Polyclinic Kuala Lumpur, Malaysia. After receiving their agreement to attend the study, they completed the Taqwa (piety) questionnaire. The reliability was assessed by determining the Cronbach's [Formula: see text] to measure the consistency of related questions for all four dimensions (subscales), including individual, social, cognitional, and emotional Taqwa behaviour...
February 10, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28187972/late-results-of-the-cox-maze-iv-procedure-in-patients-undergoing-coronary-artery-bypass-grafting
#20
Matthew R Schill, Farah N Musharbash, Vivek Hansalia, Jason W Greenberg, Spencer J Melby, Hersh S Maniar, Laurie A Sinn, Richard B Schuessler, Marc R Moon, Ralph J Damiano
OBJECTIVE: Most patients with atrial fibrillation (AF) undergoing cardiac surgery do not receive concomitant ablation. This study reviewed outcomes of patients with AF undergoing Cox-maze IV (CMIV) procedure with radiofrequency and cryoablation and coronary artery bypass grafting (CABG) at our institution. METHODS: Between the introduction of radiofrequency ablation in 2002 and 2015, 135 patients underwent left- or biatrial CMIV with CABG. Patients undergoing other cardiac procedures, except mitral valve repair, or who had emergent, reoperative, or off-pump procedures were excluded...
January 16, 2017: Journal of Thoracic and Cardiovascular Surgery
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