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https://www.readbyqxmd.com/read/28088767/pharmacokinetic-study-of-anidulafungin-in-icu-patients-with-intra-abdominal-candidiasis
#1
H Dupont, L Massias, B Jung, N Ammenouche, P Montravers
BACKGROUND: Only limited pharmacokinetic data are available for anidulafungin in ICU patients, especially in patients treated for severe intra-abdominal infection (IAI). METHODS: This was a prospective multicentre observational study in ICU patients with suspected yeast IAI. All patients received an intravenous loading dose of 200 mg of anidulafungin, followed by 100 mg/day. Thirteen blood samples were drawn between day 1 and day 5 for pharmacokinetic analysis...
January 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28088572/bcs-class-iv-drugs-highly-notorious-candidates-for-formulation-development
#2
REVIEW
Rohan Ghadi, Neha Dand
BCS class IV drugs (e.g., amphotericin B, furosemide, acetazolamide, ritonavir, paclitaxel) exhibit many characteristics that are problematic for effective oral and per oral delivery. Some of the problems associated include low aqueous solubility, poor permeability, erratic and poor absorption, inter and intra subject variability and significant positive food effect which leads to low and variable bioavailability. Also, most of the class IV drugs are substrate for P-glycoprotein (low permeability) and substrate for CYP3A4 (extensive pre systemic metabolism) which further potentiates the problem of poor therapeutic potential of these drugs...
January 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28088423/effects-of-rumen-protected-capsicum-oleoresin-on-productivity-and-responses-to-a-glucose-tolerance-test-in-lactating-dairy-cows
#3
J Oh, M Harper, F Giallongo, D M Bravo, E H Wall, A N Hristov
The objective of this experiment was to investigate the effects of rumen-protected Capsicum oleoresin (RPC) supplementation on feed intake, milk yield and composition, nutrient utilization, fecal microbial ecology, and responses to a glucose tolerance test in lactating dairy cows. Nine multiparous Holstein cows were used in a replicated 3 × 3 Latin square design balanced for residual effects with three 28-d periods. Each period consisted of 14 d for adaptation and 14 d for data collection and sampling. Treatments were 0 (control), 100, and 200 mg RPC/cow per day...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28088344/design-control-considerations-for-biologic-device-combination-products
#4
Dave Anderson, Roger Liu, J Anand Subramony, Jon Cammack
Combination products are therapeutic and diagnostic medical products that combine drugs, devices, and/or biological products with one another. Historically, biologics development involved identifying efficacious doses administered to patients intravenously or perhaps by a syringe. Until fairly recently, there has been limited focus on developing an accompanying medical device, such as a prefilled syringe or auto-injector, to enable easy and more efficient delivery. For the last several years, and looking forward, where there may be little to distinguish biologics medicines with relatively similar efficacy profiles, the biotechnology market is beginning to differentiate products by patient-focused, biologic-device based combination products...
January 11, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28088250/pre-hospital-treatment-of-bee-and-wasp-induced-anaphylactic-reactions-a-retrospective-study
#5
Athamaica Ruiz Oropeza, Søren Mikkelsen, Carsten Bindslev-Jensen, Charlotte G Mortz
BACKGROUND: Bee and wasp stings are among the most common triggers of anaphylaxis in adults representing around 20% of fatal anaphylaxis from any cause. Data of pre-hospital treatment of bee and wasp induced anaphylactic reactions are sparse. This study aimed to estimate the incidence of bee and wasp induced anaphylactic reactions, the severity of the reactions and to correlate the pre-hospital treatment with the severity of the anaphylactic reaction. METHODS: Retrospective and descriptive study based on data from the Mobile Emergency Care Units (MECUs) in the Region of Southern Denmark (2008 only for Odense and 2009-2014 for the whole region)...
January 14, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28088076/in%C3%A2-vivo-visualization-of-endogenous-mir-21-using-hyaluronic-acid-coated-graphene-oxide-for-targeted-cancer-therapy
#6
Do Won Hwang, Han Young Kim, Fangyuan Li, Ji Yong Park, Dohyun Kim, Jae Hyung Park, Hwa Seung Han, Jung Woo Byun, Yun-Sang Lee, Jae Min Jeong, Kookheon Char, Dong Soo Lee
Oncogene-targeted nucleic acid therapy has been spotlighted as a new paradigm for cancer therapeutics. However, in vivo delivery issues and uncertainty of therapeutic antisense drug reactions remain critical hurdles for a successful targeted cancer therapy. In this study, we developed a fluorescence-switchable theranostic nanoplatform using hyaluronic acid (HA)-conjugated graphene oxide (GO), which is capable of both sensing oncogenic miR-21 and inhibiting its tumorigenicity simultaneously. Cy3-labeled antisense miR-21 peptide nucleic acid (PNA) probes loaded onto HA-GO (HGP21) specifically targeted CD44-positive MBA-MB231 cells and showed fluorescence recovery by interacting with endogenous miR-21 in the cytoplasm of the MBA-MB231 cells...
December 31, 2016: Biomaterials
https://www.readbyqxmd.com/read/28087884/the-role-of-immunoglobulin-prophylaxis-for-prevention-of-cytomegalovirus-infection-in-pediatric-hematopoietic-stem-cell-transplantation-recipients
#7
Gal Goldstein, Tal Frenkel Rutenberg, Sarina Levy Mendelovich, Daphna Hutt, Michal Teperberg Oikawa, Amos Toren, Bella Bielorai
BACKGROUND: Following cessation of intravenous immunoglobulin (IVIg) administration for allogeneic hematopoietic stem cell transplantation (HSCT) recipients at our unit, we observed a sharp decline in the incidence of cytomegalovirus (CMV) infection. PROCEDURE: We conducted a retrospective study of the role of IVIg in the prevention of CMV infection in children and young adults who underwent HSCT from matched related donor. RESULTS: We included 109 patients (IVIg+/IVIg- ratio 82/27)...
January 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28087644/u-s-fda-approval-summary-nivolumab-for-treatment-of-unresectable-or-metastatic-melanoma-following-progression-on-ipilimumab
#8
Maitreyee Hazarika, Meredith K Chuk, Marc R Theoret, Sirisha Mushti, Kun He, Shawna L Weis, Alexander H Putman, Whitney S Helms, Xianhua Cao, Hongshan Li, Hong Zhao, Liang Zhao, Joel Welch, Laurie Graham, Meredith Libeg, Rajeshwari Sridhara, Patricia Keegan, Richard Pazdur
On December 22, 2014, the U. S. Food and Drug Administration (FDA) granted accelerated approval to nivolumab (OPDIVO®, Bristol-Myers Squibb) for the treatment of patients with unresectable or metastatic melanoma and disease progression following ipilimumab and, if BRAF V600 mutation-positive, a BRAF inhibitor. Approval was based on a clinically meaningful, durable objective response rate (ORR) in a non-comparative analysis of 120 patients who received nivolumab 3 mg/kg intravenously every 2 weeks with at least 6 months follow-up in an ongoing, randomized, open-label, active-controlled clinical trial...
January 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28087488/cathepsin-k-targeted-sub-micron-particles-for-regenerative-repair-of-vascular-elastic-matrix
#9
Brenton Jennewine, Jonathan Fox, Anand Ramamurthi
: Abdominal Aortic Aneurysms (AAA) involve slow dilation and weakening of the aortic wall due to breakdown of structural matrix components, such as elastic fibers by chronically overexpressed matrix metalloproteinases (MMPs), primarily, MMPs-2 and -9. Auto-regenerative repair of disrupted elastic fibers by smooth muscle cells (SMCs) at the AAA site is intrinsically poor and together with chronic proteolysis prevents restoration of elastin homeostasis, necessary to enable AAA growth arrest or regression to a healthy state...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087429/analysis-of-parameters-that-affect-human-hematopoietic-cell-outputs-in-mutant-c-kit-immunodeficient-mice
#10
Paul H Miller, Gabrielle Rabu, Margarita MacAldaz, David Jhf Knapp, Alice Ms Cheung, Kiran Dhillon, Naoto Nakamichi, Philip A Beer, Leonard D Shultz, R Keith Humphries, Connie J Eaves
Xenograft models are transforming our understanding of the output capabilities of primitive human hematopoietic cells in vivo. However, many variables that affect post-transplant reconstitution dynamics remain poorly understood. Here we show an equivalent level of human chimerism can be regenerated from human CD34(+) cord blood cells transplanted intravenously either with or without additional radiation-inactivated cells into 2-6 month-old NOD-Rag1(-/-)-IL2Rγc(-/-) (NRG) mice given a more radioprotective conditioning regimen than is possible in conventionally used, repair-deficient, NOD-Prkdc(scid/scid)-IL2Rγc(-/-) (NSG) hosts...
January 10, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28086849/successful-outcome-following-pneumonectomy-in-a-teenage-boy-with-cystic-fibrosis-a-case-report
#11
Zheyi Liew, Santosh Mallikarjuna, Asif Hasan, F Kate Gould, Su Bunn, Matthew F Thomas, Jim L Lordan, Christopher O'Brien, Malcolm Brodlie
BACKGROUND: Cystic fibrosis lung disease is generally a diffuse process however rarely one lung may become particularly damaged through chronic collapse and consolidation resulting in end-stage bronchiectasis with relative sparing of the contralateral lung. This clinical situation is sometimes referred to as "destroyed lung". Lung resection surgery is seldom indicated in cystic fibrosis and the associated medical literature is relatively sparse. CASE PRESENTATION: A 14 year old boy was referred to our centre for lung transplantation assessment...
January 13, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28081543/randomised-phase-ii-trial-of-irinotecan-plus-s-1-in-patients-with-gemcitabine-refractory-pancreatic-cancer
#12
T Ioka, Y Komatsu, N Mizuno, A Tsuji, S Ohkawa, M Tanaka, H Iguchi, A Ishiguro, M Kitano, T Satoh, T Yamaguchi, K Takeda, M Kida, K Eguchi, T Ito, M Munakata, T Itoi, J Furuse, C Hamada, Y Sakata
BACKGROUND: We aimed to compare the efficacy and safety of irinotecan/S-1 (IRIS) therapy with S-1 monotherapy in patients with gemcitabine-refractory pancreatic cancer. METHODS: Patients were treated with oral S-1 (80-120 mg for 14 days every 4 weeks) plus intravenous irinotecan (100 mg m(-2) on days 1 and 15 every 4 weeks; IRIS group) or oral S-1 group (80-120 mg daily for 28 days every 6 weeks). The primary endpoint was progression-free survival (PFS)...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28081299/ultrasound-detection-of-regional-oxidative-stress-in-deep-tissues-using-novel-enzyme-loaded-nanoparticles
#13
Emilia S Olson, Inanc Ortac, Christopher Malone, Sadik Esener, Robert Mattrey
Oxidative stress is a powerful tool that is critical to immune mediated responses in healthy individuals, yet additionally plays a crucial role in development of cancer, inflammatory pathologies, and tissue ischemia. Despite this, there remain relatively few molecular tools to study oxidative stress, particularly in living mammals. To develop an intravenously injectable probe capable of labeling sites of oxidative stress in vivo, 200 nm catalase synthetic hollow enzyme loaded nanospheres (catSHELS) are designed and fabricated using a versatile enzyme nanoencapsulation method...
January 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28081269/morphine-does-not-affect-myocardial-salvage-in-st-segment-elevation-myocardial-infarction
#14
Hye Bin Gwag, Taek Kyu Park, Young Bin Song, Eun Kyoung Kim, Woo Jin Jang, Jeong Hoon Yang, Joo-Yong Hahn, Seung-Hyuk Choi, Jin-Ho Choi, Sang Hoon Lee, Yeon Hyeon Choe, Joonghyun Ahn, Keumhee Chough Carriere, Hyeon-Cheol Gwon
Recent studies have proposed intravenous (IV) morphine is associated with delayed action of antiplatelet agents in acute myocardial infarction. However, it is unknown whether morphine results in increased myocardial damage in ST-segment elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PCI). We investigated myocardial salvage index (MSI) to determine whether IV morphine affects myocardial injury adversely in STEMI patients undergoing primary PCI. 299 STEMI patients underwent contrast-enhanced magnetic resonance imaging a median of 3 days after PCI...
2017: PloS One
https://www.readbyqxmd.com/read/28080060/pharmacokinetics-of-the-individual-major-components-of-polymyxin-b-and-colistin-in-rats
#15
Sivashangarie Sivanesan, Kade Roberts, Jiping Wang, Soon-Ee Chea, Philip E Thompson, Jian Li, Roger L Nation, Tony Velkov
The pharmacokinetics of polymyxin B1, polymyxin B2, colistin A, and colistin B were investigated in a rat model following intravenous administration (0.8 mg/kg) of each individual component. Plasma and urine concentrations were determined by LC-MS/MS, and plasma protein binding was measured by ultracentrifugation. Total and unbound pharmacokinetic parameters for each component were calculated using noncompartmental analysis. All of the polymyxin components had a similar clearance, volume of distribution, elimination half-life, and urinary recovery...
January 12, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28079918/dose-evaluation-of-lamivudine-in-hiv-infected-children-aged-5%C3%A2-months-18%C3%A2-years-based-on-a-population-pharmacokinetic-analysis
#16
Esther J H Janssen, Diane E T Bastiaans, Pyry A J Välitalo, Annemarie M C van Rossum, Evelyne Jacqz-Aigrain, Hermione Lyall, Catherijne A J Knibbe, David M Burger
AIM: The objectives of this study were to characterise age-related changes in lamivudine pharmacokinetics in children and evaluate lamivudine exposure, followed by dose recommendations for subgroups in which target steady state AUC0-24h is not reached. METHODS: Population pharmacokinetic modelling was performed in NONMEM using data from two model building datasets and two external datasets (n = 180 (age 0.4-18 years, bodyweight 3.4-60.5 kg); 2,061 samples (median 12 per child); daily oral dose 60-300 mg (3...
January 12, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28079915/intravenous-immunoglobulin-for-the-treatment-of-kawasaki-disease
#17
Stanford T Shulman
Standard first-line therapy for Kawasaki disease (KD) consists of intravenous immunoglobulin (IVIG) and aspirin. Current guidelines recommend 2 g/kg of IVIG and 80 to 100 mg/kg of aspirin administered within the first 10 days of illness. This regimen has marked efficacy in preventing the development of coronary artery aneurysms. Approximately 15% to 20% of treated patients require a second dose of IVIG to control the inflammatory process. The role of adjunctive corticosteroid therapy with IVIG and aspirin is evolving, with Japanese studies showing a clear benefit in those patients at highest risk for development of coronary disease...
January 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28079914/intravenous-immunoglobulin-in-pediatric-rheumatology-when-to-use-it-and-what-is-the-evidence
#18
Martha M Rodriguez, Linda Wagner-Weiner
Intravenous immunoglobulin (IVIG) is given to children with a variety of rheumatologic illnesses. The mechanism of action by which it exerts therapeutic effects is not well understood and likely differs in the medical conditions for which it is given. IVIG is approved by the US Food and Drug Administration and is the standard of care for Kawasaki disease, but most IVIG use in pediatric rheumatology is "off-label. " The literature supports the use of IVIG for juvenile dermatomyositis, although it is unclear whether its use should be limited to those children with more severe or refractory disease...
January 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28079913/intravenous-immunoglobulin-in-the-treatment-of-hematologic-disorders-in-pediatrics
#19
Gabriela Villanueva, Jill L O de Jong, Jennifer L McNeer
Intravenous immunoglobulin (IVIG) is pooled immunoglobulin G derived from human blood donors. It was introduced in the early 1980s to treat immunodeficiency disorders. Since then, its use has expanded to other fields such as neurology, rheumatology, and hematology. IVIG has been used to provide passive immunity in qualitative and quantitative immunoglobulin disorders, to neutralize antibodies in immune-mediated diseases, and as an immune modulatory agent. The difficulty of producing IVIG in high quantities, in addition to a growing list of "off-label" indications, has resulted in a worldwide shortage and increase in cost...
January 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28079912/intravenous-immunoglobulin-in-the-treatment-of-primary-immunodeficiency-diseases
#20
Deirdre De Ranieri, Nana Sarkoah Fenny
Intravenous immunoglobulin (IVIG) has been used as antibody replacement therapy in primary immunodeficiency diseases (PIDDs) for more than 50 years. Its role as a therapeutic agent has expanded over the past couple of decades as its anti-inflammatory and immune-modulatory mechanisms of action have been elucidated. It is now used "off-label" to treat other autoimmune diseases. This article focuses on the role of IVIG in the treatment of PIDDs characterized by absent or deficient antibody production. Replacement doses are given on a monthly basis in these conditions as a prophylactic measure to prevent acute and serious bacterial infections...
January 1, 2017: Pediatric Annals
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