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Sandeep Pallerla, Ted Gauthier, Rushikesh Sable, Seetharama D Jois
Doxorubicin (DOX) belongs to the anthracycline class of drugs that are used in the treatment of various cancers. It has limited cystostatic effects in therapeutic doses, but higher doses can cause cardiotoxicity. In the current approach, we conjugated a peptidomimetic (Arg-aminonaphthylpropionic acid-Phe, compound 5) known to bind to HER2 protein to DOX via a glutaric anhydride linker. Antiproliferative assays suggest that the DOX-peptidomimetic conjugate has activity in the lower micromolar range. The conjugate exhibited higher toxicity in HER2-overexpressed cells than in MCF-7 and MCF-10A cells that do not overexpress HER2 protein...
October 10, 2016: European Journal of Medicinal Chemistry
Brett Wolfson-Stofko, Alex S Bennett, Luther Elliott, Ric Curtis
BACKGROUND: Though public bathroom drug injection has been documented from the perspective of people who inject drugs, no research has explored the experiences of the business managers who oversee their business bathrooms and respond to drug use. These managers, by default, are first-responders in the event of a drug overdose and thus of intrinsic interest during the current epidemic of opioid-related overdoses in the United States. This exploratory study assists in elucidating the experiences that New York City business managers have with people who inject drugs, their paraphernalia, and their overdoses...
October 18, 2016: International Journal on Drug Policy
Whitney Marsh, Heith Copes, Travis Linnemann
BACKGROUND: Because of increased law enforcement and subsequent media attention, methamphetamine users appear in the public's imagination as diseased, zombie-like White trash. We explore methamphetamine users' perceptions about whether the images, people, and situations in anti-methamphetamine campaigns reflect their own lives and experiences using meth. METHODS: To explore these perceptions, we used photo-elicitation interviews with 47 people who used methamphetamine (30 former and 17 active)...
October 18, 2016: International Journal on Drug Policy
A P M Suzanne Giesbers, Roel L J Schouteten, Erik Poutsma, Beatrice I J M van der Heijden, Theo van Achterberg
BACKGROUND: Providing nursing teams with feedback on quality measurements is used as a quality improvement instrument in healthcare organizations worldwide. Previous research indicated contradictory results regarding the effect of such feedback on both nurses' well-being and performance. OBJECTIVES: Building on the Job Demands-Resources model this study explores: (1) whether and how nurses' perceptions of feedback on quality measurements (as a burdening job demand or rather as an intrinsically or extrinsically motivating job resource) are respectively related to nurses' well-being and performance; and (2) whether and how team reflection influences nurses' perceptions...
October 11, 2016: International Journal of Nursing Studies
Si-Yong Qin, Ai-Qing Zhang, Si-Xue Cheng, Lei Rong, Xian-Zheng Zhang
Carrier-assistant drug delivery systems (DDSs) have been rapidly established for cancer therapy and great strides have been made in recent years. However, further development of DDSs is retarded by the aspects such as the low drug carrying capacity, carrier-induced toxicity and immunogenicity, complex synthesis manipulation. Drug self-delivery systems (DSDSs), in which active drugs exhibit nanoscale characteristic to realize intracellular delivery by themselves without the help of nanocarriers, have been rapidly developed to address these issues...
October 13, 2016: Biomaterials
Alexandra C Sundermann, Troy D Abell, Lisa C Baker, Mark B Mengel, Kathryn E Reilly, Michael A Bonow, Gregory E Hoy, Richard D Clover
BACKGROUND: The specialization of human fat deposits is an inquiry of special importance in the study of fetal growth. It has been theorized that maternal lower-body fat is designated specifically for lactation and not for the growth of the fetus. OBJECTIVE: Our goal was to compare the contributions of maternal upper-body versus lower-body adiposity to infant birth weight. We hypothesized that upper-body adiposity would be strongly associated with infant birth weight and that lower-body adiposity would be weakly or negligibly associated with infant birth weight-after adjusting for known determinants...
September 21, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Xia Chen, Hua Guo, Fuxia Li, Di Fan
BACKGROUND: The present study is designed to explore the metastasis-inhibitory effect of physcion 8-O-β-glucopyranoside (PG) in human breast cancer, and the mechanisms underlying its role in tumor metastasis. METHODS: Both in vitro and in vivo studies were conducted. Cell migration and invasion were analyzed by transwell assay. The translocation of β-catenin from the nucleus to cytoplasm membrane was demonstrated by immunofluorescent staining. The expression of signaling molecules was determined by Western blot or qRT-PCR...
September 13, 2016: Pharmacological Reports: PR
Daniel Lordelo San Martin, Dislene Nascimento Dos Santos, Abrahão Fontes Baptista
OBJECTIVE: To describe the pain in patients infected with human T-cell lymphotropic virus type 1, clinically and epidemiologically. METHODS: This systematic review was based on The PRISMA Statement. Four reviewers searched PUBMED, SciELO, LILACS and BIREME for data from observational studies and clinical trials (n≥30) regarding pain prevalence, characteristics, and associated factors in patients with human T-cell lymphotropic virus type 1. No limits on publication date or language were established...
October 18, 2016: Brazilian Journal of Infectious Diseases
Chongsheng He, Simone Sidoli, Robert Warneford-Thomson, Deirdre C Tatomer, Jeremy E Wilusz, Benjamin A Garcia, Roberto Bonasio
Interactions between noncoding RNAs and chromatin proteins play important roles in gene regulation, but the molecular details of most of these interactions are unknown. Using protein-RNA photocrosslinking and mass spectrometry on embryonic stem cell nuclei, we identified and mapped, at peptide resolution, the RNA-binding regions in ∼800 known and previously unknown RNA-binding proteins, many of which are transcriptional regulators and chromatin modifiers. In addition to known RNA-binding motifs, we detected several protein domains previously unknown to function in RNA recognition, as well as non-annotated and/or disordered regions, suggesting that many functional protein-RNA contacts remain unexplored...
October 20, 2016: Molecular Cell
Camilla Hardeland, Kjetil Sunde, Helge Ramsdal, Susan R Hebbert, Linda Soilammi, Fredrik Westmark, Fredrik Nordum, Andreas E Hansen, Jon E Steen-Hansen, Theresa M Olasveengen
AIM: Explore, understand and address issues that impact upon timely and adequate allocation of prehospital medical assistance and resources to out-of-hospital cardiac arrest (OHCA) patients. METHODS: Mixed-methods: design obtaining data for one year in three emergency medical communication centres (EMCC); Oslo-Akershus (OA), Vestfold-Telemark (VT) and Østfold (Ø). Data collection included quantitative data from analysis of dispatch logs, ambulance records and audio files...
October 18, 2016: Resuscitation
Pang Yao, Liang Sun, Ling Lu, Hong Ding, Xiafei Chen, Lixin Tang, Xinming Xu, Gang Liu, Yao Hu, Yiwei Ma, Feijie Wang, Qianlu Jin, He Zheng, Huiyong Yin, Rong Zeng, Yan Chen, Frank B Hu, Huaixing Li, Xu Lin
CONTEXT: Little is known how genetic and non-genetic factors modify responses of vitamin D supplementation in nonwhite populations. OBJECTIVE: To investigate factors modifying 25-hydroxyvitamin D (25[OH]D) and bioavailable 25(OH)D (25[OH]DBio) responses after vitamin D3 supplementation. Design, Setting, Participants, and Intervention: In this randomized, double-blinded, placebo-controlled trial, 448 Chinese with vitamin D deficiency (25[OH]D<50 nmol/L) received 2000 IU/d vitamin D3 or placebo for 20 weeks...
October 21, 2016: Journal of Clinical Endocrinology and Metabolism
Wenyan Xu, Daniel Kool, Derek K O'Flaherty, Ashley Keating, Lauralicia Sacre, Martin Egli, Anne Marietta Noronha, Christopher James Wilds, Linlin Zhao
DNA interstrand cross-links (ICLs) are cytotoxic DNA lesions derived from reactions of DNA with a number of anti-cancer reagents as well as endogenous bifunctional electrophiles. Deciphering the DNA repair mechanisms of ICLs is important for understanding the toxicity of DNA cross-linking agents and for the development of effective chemotherapies. Previous research has focused on ICLs cross-linked with the N7 and N2 atoms of guanine as well as those formed at the N6 atom of adenine; however, little is known about the mutagenicity of O6-dG-derived ICLs...
October 21, 2016: Chemical Research in Toxicology
Mehrnaz Asadi Gharabaghi
BACKGROUND/AIM: Lung cancer is the major contributor to overall cancer-related mortality. Biomarkers are important in early detection and prognosis, in addition to developing treatment regimes, which may improve the patient survival rates. Therefore, the present study was designed to evaluate the prognostic and diagnostic value of SIRT1/BIRC6 expression in non-small cell lung cancer (NSCLC) Methods: The data on the prognostic impact of SIRT1/BIRC6 in NSCLC were collected from 11 September 2006 to 10 July 2014...
October 21, 2016: Clinical Respiratory Journal
Klaus Kratochwill, Michael Boehm, Rebecca Herzog, Katharina Gruber, Anton Michael Lichtenauer, Lilian Kuster, Dagmar Csaicsich, Andreas Gleiss, Seth L Alper, Christoph Aufricht, Andreas Vychytil
BACKGROUND: Peritonitis and ultrafiltration failure remain serious complications of chronic peritoneal dialysis (PD). Dysfunctional cellular stress responses aggravate peritoneal injury associated with PD fluid exposure, potentially due to peritoneal glutamine depletion. In this randomized cross-over phase I/II trial we investigated cytoprotective effects of alanyl-glutamine (AlaGln) addition to glucose-based PDF. METHODS: In a prospective randomized cross-over design, 20 stable PD outpatients underwent paired peritoneal equilibration tests 4 weeks apart, using conventional acidic, single chamber 3...
2016: PloS One
Si Hyung Lee, Eun Min Kang, Gyu Ah Kim, Seung Woo Kwak, Joon Mo Kim, Hyoung Won Bae, Gong Je Seong, Chan Yun Kim
BACKGROUND: To investigate the association between heavy metal levels and open-angle glaucoma (OAG) with low- and high-teen baseline intraocular pressure (IOP) using a population-based study design. METHODS: This cross-sectional study included 5,198 participants older than 19 years of age who participated in the Korean National Health and Nutrition Examination Survey (KNHANES) from 2008 to 2012 and had blood heavy metal levels available. The OAG with normal baseline IOP (IOP ≤ 21 mmHg) subjects were stratified into low-teen OAG (baseline IOP ≤ 15 mmHg) and high-teen OAG (15 mmHg < baseline IOP ≤ 21 mmHg), and the association between blood lead, mercury, and cadmium levels and glaucoma prevalence was assessed for low- and high-teen OAG...
2016: PloS One
Jessica C Rivera, Renee M Greer, Mary Ann Spott, Anthony E Johnson
BACKGROUND: The Military Orthopaedic Trauma Registry (MOTR) was designed to replicate the Department of Defense Trauma Registry's (DoDTR's) role as pillar for data-driven management of extremity war wounds. The MOTR continuously undergoes quality assurance checks to optimize the registry data for future quality improvement efforts. We conducted a quality assurance survey of MOTR entrants to determine if a simple MOTR data pull could provide robust orthopedic-specific information toward the question of causes for late amputation...
November 2016: Journal of Trauma and Acute Care Surgery
Kimberly DiGioia, Mohit Nair, Morgan Shields, Vikas Saini
With the aim of better understanding what the public (as opposed to "patients") wants from health care, this study asked people on the street, "What does the right health care mean to you?" Responses ranged from "Caring about me more than just in the appointment" to "That everyone should see exactly what medical treatment costs." A qualitative analysis revealed that all responses fell into 2 overarching categories: health care at the interpersonal level and health care at the system level. Approximately 66...
October 20, 2016: Journal of Patient Safety
Joshua F Wiley, Bei Bei, Julienne E Bower, Annette L Stanton
OBJECTIVES: Allostatic load (AL) represents cumulative wear-and-tear on the body and is operationalized as a multisystem index of biomarkers. Allostatic load is associated with morbidities and mortality, leading to a growing body of literature that uses AL as an outcome in its own right. Psychosocial resources (PSRs), such as mastery and social support, may influence health outcomes in part via AL, and the current review seeks to characterize the relations between PSRs and AL. METHODS: A systematic review was conducted by searching PubMed, CINAHL Plus, PsycINFO, Scopus, and Embase for studies examining the relation between PSR(s) and AL in humans...
October 20, 2016: Psychosomatic Medicine
H Orpana, M Chawla, E Gallagher, E Escaravage
INTRODUCTION: In 2006, the World Health Organization launched the Global Age-Friendly Cities Project to support active aging. Canada has a large number of age-friendly initiatives; however, little is known about the effectiveness and outcomes of age-friendly community (AFC) initiatives. In addition, stakeholders report that they lack the capacity and tools to develop and conduct evaluations of their AFC initiatives. In order to address these gaps, the Public Health Agency of Canada developed indicators to support the evaluation of AFC initiatives relevant to a wide range of Canadian communities...
October 2016: Health Promotion and Chronic Disease Prevention in Canada
Robinson L Contiero, Denis F Biffe, Jamil Constantin, Rubem S de Oliveira, Guilherme B P Braz, Felipe R Lucio, Jerome J Schleier
The objective of this study was to evaluate the effects of nozzle types and 2,4-D formulations on spray deposition on different targets. Two field experiments were carried out in a completely randomized design, and treatments were arranged in a factorial scheme. Species in experiment 1 were Sumatran fleabane (Conyza sumatrensis) and Brazil pusley (Richardia brasiliensis) and in experiment 2 were soybeans (Glycine max) and Benghal dayflower (Commelina benghalensis). For both experiments, the first factor corresponded to spray nozzles with different settings (AD 110...
October 21, 2016: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
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