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https://www.readbyqxmd.com/read/29129789/dual-ph-responsive-multifunctional-nanoparticles-for-targeted-treatment-of-breast-cancer-by-combining-immunotherapy-and-chemotherapy
#1
Yuanyuan Liu, Linan Qiao, Sipei Zhang, Guoyun Wan, Bowei Chen, Ping Zhou, Ning Zhang, Yinsong Wang
In the present study, a dual pH-responsive multifunctional nanoparticle system was designed for combining immunotherapy and chemotherapy to treat breast cancer through targeting immune cells and cancer cells. A proven anti-tumor immune regulator, R848, was encapsulated with poly(L-histidine) (PHIS) to form PHIS/R848 nanocores. Doxorubicin (DOX) was conjugated to hyaluronic acid (HA) through an acid-cleavable hydrazone bond linkage to synthesize polymeric prodrug HA-DOX, which was subsequently coated outside PHIS/R848 nanocores to form HA-DOX/PHIS/R848 nanoparticles...
November 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29128552/venous-thromboembolism-in-pediatric-hematopoietic-cell-transplant-a-multicenter-cohort-study
#2
Hemalatha G Rangarajan, Joseph R Stanek, Rolla Abu-Arja, Rajinder P S Bajwa, Jeffery J Auletta, Dean A Lee, Sarah H O Brien, Riten Kumar
INTRODUCTION: Hematopoietic cell transplant (HCT) is associated with a pro-inflammatory, pro-coagulant environment which places recipients at increased risk of venous thromboembolism (VTE). While the incidence of VTE in adult HCT recipients has been extensively studied, similar data for children are lacking. We conducted a multicenter retrospective study to analyze the prevalence of VTE and associated risk factors in a large cohort of patients who underwent HCT at tertiary-care US children's hospitals...
November 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29106917/variation-in-prophylactic-antibiotic-use-for-laparoscopic-cholecystectomy-need-for-better-stewardship-in-pediatric-surgery
#3
Kibileri Williams, Lauren Baumann, Fizan Abdullah, Shawn D St Peter, Tolulope A Oyetunji
PURPOSE: The role of prophylactic antibiotics for elective laparoscopic cholecystectomy has been questioned over the last decade. Although gradually being discontinued in the adult population, the practice among pediatric surgeons remains unknown. Our aim was to investigate the use of perioperative antibiotics in children undergoing elective laparoscopic cholecystectomy (LC) for symptomatic cholelithiasis and biliary dyskinesia. METHODS: We retrospectively reviewed the Pediatric Health Information System (PHIS) database for 2015 and selected all patients 18years old or younger who underwent LC for cholelithiasis (without cholecystitis) or biliary dyskinesia...
October 9, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29102151/age-at-orchiopexy-for-undescended-testis-in-the-united-states
#4
Kibileri Williams, Lauren Baumann, Adil Shah, Fizan Abdullah, Emilie K Johnson, Tolulope A Oyetunji
PURPOSE: Undescended testis (UDT) is the most common congenital anomaly of the male genitalia. The American Urological Association guidelines recommend orchiopexy by age 18months to ameliorate the risk of subfertility. The study aim was to assess adherence to these guidelines on a national level. METHODS: We retrospectively reviewed both the State Ambulatory Surgery Database (SASD) in 2012 and the Pediatric Health Information System (PHIS) for 2015. All patients aged 18years or less with a diagnosis of UDT who underwent orchiopexy were included...
October 12, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29094435/the-burden-of-common-infections-in-children-and-adolescents-with-diabetes-mellitus-a-pediatric-health-information-system-study
#5
Lindsey Korbel, Robert S Easterling, Nidhi Punja, John David Spencer
BACKGROUND: People with diabetes mellitus (DM) have increased infection risk. The healthcare utilization of pediatric and adolescent diabetic patients with infection is not well defined. This study evaluates the number of pediatric and adolescent patients with DM that seek medical treatment for infection management and assesses its socioeconomic impact. METHODS: A retrospective analysis was performed using the Pediatric Health Information System (PHIS) database on children and adolescents with DM who presented to the Emergency Department (ED) or were hospitalized for infection management from 2008 to 2014...
November 2, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29058706/histidine-kinases-and-the-missing-phosphoproteome-from-prokaryotes-to-eukaryotes
#6
Kevin Adam, Tony Hunter
Protein phosphorylation is the most common type of post-translational modification in eukaryotes. The phosphoproteome is defined as the complete set of experimentally detectable phosphorylation sites present in a cell's proteome under various conditions. However, we are still far from identifying all the phosphorylation sites in a cell mainly due to the lack of information about phosphorylation events involving residues other than Ser, Thr and Tyr. Four types of phosphate-protein linkage exist and these generate nine different phosphoresidues-pSer, pThr, pTyr, pHis, pLys, pArg, pAsp, pGlu and pCys...
October 23, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29048950/integrating-population-heterogeneity-indices-with-microfluidic-cell-based-assays
#7
Thomas A Moore, Alexander Li, Edmond W K Young
Recent advances in cell-based assays have involved the integration of single-cell analyses and microfluidics technology to facilitate both high-content and high-throughput applications. These technical advances have yielded large datasets with single-cell resolution, and have given rise to the study of cell population dynamics, but statistical analyses of these populations and their properties have received much less attention, particularly for cells cultured in microfluidic systems. The objective of this study was to perform statistical analyses using Pittsburgh Heterogeneity Indices (PHIs) to understand the heterogeneity and evolution of cell population demographics on datasets generated from a microfluidic single-cell-resolution cell-based assay...
October 1, 2017: SLAS Discovery
https://www.readbyqxmd.com/read/29020143/anti-infective-acquisition-costs-for-a-stewardship-program-getting-to-the-bottom-line
#8
Sarah K Parker, Amanda L Hurst, Cary Thurm, Matthew Millard, Timothy C Jenkins, Jason Child, Casey Dugan
Background: Though antimicrobial stewardship programs (ASPs) are in place for patient safety, financial justification is often required. In 2016, the Infectious Diseases Society of America (IDSA) recommended that anti-infective costs be measured by patient-level administration data normalized for patient census. Few publications use this methodology. Here, we aim to compare 3 methods of drug cost analysis during 3 phases of an ASP as an example of this recommendation's implementation...
July 23, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28978554/association-of-pediatric-medical-emergency-teams-with-hospital-mortality
#9
Shelby Kutty, Philip G Jones, Quentin Karels, Navya Joseph, John A Spertus, Paul S Chan
Background -Implementation of a medical emergency teams has been identified as a potential strategy to reduce hospital deaths, as these teams respond to patients with acute physiological decline in an effort to prevent in-hospital cardiac arrest. However, prior studies of the association between medical emergency teams and hospital mortality have been limited and typically have not accounted for pre-implementation mortality trends. Methods -Within the Pediatric Health Information System (PHIS) for freestanding pediatric hospitals, annual risk-adjusted mortality rates were calculated for sites between 2000 and 2015...
October 4, 2017: Circulation
https://www.readbyqxmd.com/read/28970191/lessons-from-the-implementation-of-mo-buzz-a-mobile-pandemic-surveillance-system-for-dengue
#10
May Oo Lwin, Karthikayen Jayasundar, Anita Sheldenkar, Ruwan Wijayamuni, Prasad Wimalaratne, Kacey C Ernst, Schubert Foo
BACKGROUND: Approximately 128 countries and 3.9 billion people are at risk of dengue infection. Incidence of dengue has increased over the past decades, becoming a growing public health concern for countries with populations that are increasingly susceptible to this vector-borne disease, such as Sri Lanka. Almost 55,150 dengue cases were reported in Sri Lanka in 2016, with more than 30.40% of cases (n=16,767) originating from Colombo, which struggles with an outdated manual paper-based dengue outbreak management system...
October 2, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28966009/preemptive-ladd-in-congenital-diaphragmatic-hernia-and-abdominal-wall-defects-does-not-reduce-the-risk-of-future-volvulus
#11
Erin P Ward, Andrew Wang, Hari Thangarajah, David Lazar, Stephen Bickler, Timothy Fairbanks, Karen M Kling
INTRODUCTION: Patients with congenital diaphragmatic hernia (CDH), gastroschisis, and omphalocele are prone to abnormalities of intestinal rotation and thus future midgut volvulus. Controversy exists whether routine preemptive Ladd procedure in this subgroup of asymptomatic patients is of value to reduce future volvulus. METHODS: The Pediatric Health Information System (PHIS) database was queried for neonates with CDH, gastroschisis, and omphalocele between January 2009 and September 2015...
September 5, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28946222/dissipation-rate-study-and-pre-harvest-intervals-calculation-of-imidacloprid-and-oxamyl-in-exported-egyptian-green-beans-and-chili-peppers-after-pestigation-treatment
#12
Ahmad Hanafi, Marilena Dasenaki, Anna Bletsou, Nikolaos S Thomaidis
Two QuEChERS-based methods were developed and validated, using liquid chromatography-tandem mass spectrometric detection, in order to accurately determine residues of imidacloprid and oxamyl in green beans and chili peppers after treatment via irrigation system under field conditions in Egyptian farms. The validation included experiments for specificity, linearity, trueness, precision, matrix effect and limits of detection and quantification according to European Commission standards. The dissipation rates of both pesticides in green beans and chili peppers were studied and the pre-harvest intervals (PHIs) were calculated...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28941917/national-trends-in-the-management-of-primary-vesicoureteral-reflux-in-children
#13
Michael Garcia-Roig, Curtis Tavers, Courtney E McCracken, Andrew J Kirsch
PURPOSE: In September 2011 the AAP (American Academy of Pediatrics) released updated guidelines for the evaluation of children 2 to 24 months old with a febrile urinary tract infection. We documented the impact of the guideline on diagnosis and surgical management of vesicoureteral reflux at U.S. children's hospitals. We hypothesized that voiding cystourethrogram studies and the vesicoureteral reflux treatment rate decreased concurrent with the national guideline release. MATERIALS AND METHODS: The Pediatric Health Information System was queried for children (younger than 18 years) with primary vesicoureteral reflux and their antireflux surgical history from January 2004 to June 2015...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28905171/pharmacist-intervention-acceptance-for-the-reduction-of-potentially-inappropriate-drug-prescribing-in-acute-psychiatry
#14
Sophia Hannou, Pierre Voirol, André Pannatier, Marie-Laure Weibel, Farshid Sadeghipour, Armin von Gunten, Jean-Frédéric Mall, Isabella De Giorgi Salamun
Background Prescribing for the elderly is challenging. A previous observational study conducted in our geriatric psychiatry admission unit (GPAU) using STOPP/START criteria showed a high number of potentially inappropriate drug prescriptions (PIDPs). A clinical pharmacist was added to our GPAU as a strategy to reduce PIDPs. Objective The objective of the present study was to assess the impact of a clinical pharmacist on PIDPs by measuring acceptance rates of pharmacist interventions (PhIs). Setting This study was conducted at the GPAU of Lausanne University Hospital...
December 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28860753/ph-sensitive-and-folic-acid-targeted-mpeg-phis-fa-peg-ve-mixed-micelles-for-the-delivery-of-ptx-ve-and-their-antitumor-activity
#15
Yan Di, Ting Li, Zhihong Zhu, Fen Chen, Lianqun Jia, Wenbing Liu, Xiumei Gai, Yingying Wang, Weisan Pan, Xinggang Yang
The aim of this study was to simultaneously introduce pH sensitivity and folic acid (FA) targeting into a micelle system to achieve quick drug release and to enhance its accumulation in tumor cells. Paclitaxel-(+)-α-tocopherol (PTX-VE)-loaded mixed micelles (PHIS/FA/PM) fabricated by poly(ethylene glycol) methyl ether-poly(histidine) (MPEG-PHIS) and folic acid-poly(ethylene glycol)-(+)-α-tocopherol (FA-PEG-VE) were characterized by dynamic light scattering and transmission electron microscopy (TEM). The mixed micelles had a spherical morphology with an average diameter of 137...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28842951/effect-of-k-and-mn-phosphites-in-the-control-of-pythium-damping-off-in-soybean-a-feasible-alternative-to-fungicide-seed-treatments
#16
Marcelo A Carmona, Francisco J Sautua, Pablo E Grijalba, Mariano Cassina, Oscar Pérez-Hernández
BACKGROUND: Use of fungicide seed treatments for control of soybean soilborne diseases such as Pythium damping off has increased worldwide. However, emergence of resistant Pythium strains to metalaxyl-M has prompted need for alternative technologies to fungicides for damping-off control. Phosphites (Phis) have been proposed as methods to control oomycetes, but their use as seed treatments in soybean is limited due to lack of information on their efficacy. The effect of K and Mn phosphites (as seed treatments) in the control of Pythium damping-off in soybean was evaluated in vitro and in vivo...
August 26, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28833643/1d-coordination-polymer-nanofibers-for-low-temperature-photothermal-therapy
#17
Yu Yang, Wenjun Zhu, Ziliang Dong, Yu Chao, Lai Xu, Meiwan Chen, Zhuang Liu
Near-infrared (NIR)-light-triggered photothermal therapy (PTT) usually requires hyperthermia to >50 °C for effective tumor ablation, which can potentially induce inflammatory disease and heating damage of normal organs nearby, while tumor lesions without sufficient heating (e.g., the internal part) may survive after treatment. Achieving effective tumor killing under relatively low temperatures is thus critical toward successful clinical use of PTT. Herein, we design a simple strategy to fabricate poly(ethylene glycol) (PEG)-modified one-dimensional nanoscale coordination polymers (1D-NCPs) with intrinsic biodegradability, large surface area, pH-responsive behaviors, and versatile theranostic functions...
August 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28774767/variation-in-the-evaluation-of-testicular-conditions-across-united-states-pediatric-emergency-departments
#18
Lois K Lee, Michael C Monuteaux, Joel D Hudgins, John J Porter, Susan C Lipsett, Florence Bourgeois, Bartley G Cilento, Mark I Neuman
OBJECTIVES: To explore the variation in diagnostic testing and management for males diagnosed with three testicular conditions (testicular torsion, appendix testis torsion, epididymitis/orchitis) using a large pediatric health care database. Diagnostic testing is frequently used in evaluation of the acute scrotum; however, there is likely variability in the use of these tests in the emergency department setting. METHODS: We conducted a cross-sectional study of males with the diagnoses of testicular torsion, appendix testis torsion, and epididymitis/orchitis...
July 26, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28723107/chemical-approaches-to-investigate-labile-peptide-and-protein-phosphorylation
#19
Anett Hauser, Martin Penkert, Christian P R Hackenberger
Protein phosphorylation is by far the most abundant and most studied post-translational modification (PTM). For a long time, phosphate monoesters of serine (pSer), threonine (pThr), and tyrosine (pTyr) have been considered as the only relevant forms of phosphorylation in organisms. Recently, several research groups have dedicated their efforts to the investigation of other, less characterized phosphoamino acids as naturally occurring PTMs. Such apparent peculiar phosphorylations include the phosphoramidates of histidine (pHis), arginine (pArg), and lysine (pLys), the phosphorothioate of cysteine (pCys), and the anhydrides of pyrophosphorylated serine (ppSer) and threonine (ppThr)...
July 19, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28644945/complications-and-cost-of-syndactyly-reconstruction-in-the-united-states-analysis-of-the-pediatric-health-information-system
#20
Maria F Canizares, Lanna Feldman, Patricia E Miller, Peter M Waters, Donald S Bae
BACKGROUND: Syndactyly is one of the most common congenital differences of the upper extremity and offers an exceptional opportunity to evaluate value-based care in pediatric orthopedic surgery. We designed a study to characterize complications and cost associated to syndactyly surgery among US pediatric hospitals. METHODS: A total of 2047 patients were identified for syndactyly surgery at 38 pediatric hospitals from 2009 to 2012 using the Pediatric Health Information System (PHIS) database...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
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