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https://www.readbyqxmd.com/read/28214531/the-skeletal-developmental-toxicity-of-chlormequat-chloride-and-its-underlying-mechanisms
#1
Dan Huang, Shuang Wu, Xiaohong Hou, Lixia Jia, Qinghe Meng, Hongqian Chu, Jianjun Jiang, Lanqin Shang, Weidong Hao
Chlormequat Chloride (CCC), a widely used plant growth regulator, could decrease body weight in animals; however, the mechanism has not been well studied. This study was designed to evaluate the skeletal development toxicity of CCC on pubertal male Sprague-Dawley (SD) rats and to investigate whether CCC impacts the development of chondrocyte, osteoblast and osteoclast through growth hormone (GH) and insulin like growth factor 1 (IGF-I). Rats from 23 to 70 on postnatal days were exposed to CCC daily by gavage at doses of 0, 75, 150, and 300mg/kg bw/d...
February 15, 2017: Toxicology
https://www.readbyqxmd.com/read/28211618/a-comparison-between-lynch-syndrome-and-sporadic-colorectal-cancer-survivors-satisfaction-with-their-healthcare-providers
#2
Allison M Burton-Chase, Wendy M Parker, Katrina M Polivka, Ellen R Gritz, Christopher I Amos, Karen H Lu, Patrick M Lynch, Miguel A Rodriguez-Bigas, Y Nancy You, Susan K Peterson
This study evaluated provider satisfaction in a sample of colorectal cancer (CRC) survivors with and without Lynch syndrome (LS). Participants were case-case-matched CRC survivors with (n = 75) or without (n = 75) LS (mean age of 55; range: 27-93). Participants completed a mailed questionnaire assessing demographics, clinical characteristics, healthcare utilization, psychosocial variables, and provider satisfaction. LS CRC survivors reported lower provider satisfaction scores on three subscales of the Primary Care Assessment Survey: communication (78...
February 17, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28210504/comparison-of-maximum-stretch-forces-between-femtosecond-laser-assisted-capsulotomy-and-continuous-curvilinear-capsulorhexis
#3
Mari Takagi, Takashi Kojima, Kei Ichikawa, Yoshiki Tanaka, Yukihito Kato, Rie Horai, Akeno Tamaoki, Kazuo Ichikawa
The current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentric CCCs were also created to simulate real cataract surgery. For FLC, capsulotomies 5.3 mm in diameter were created using the LenSx® (Alcon) platform. Fresh porcine eyes were used in all experiments. The edges of the capsule openings were pulled at a constant speed using two L-shaped jigs...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28209594/adolescents-and-young-adults-with-acute-lymphoblastic-leukemia-and-acute-myeloid-leukemia-impact-of-care-at-specialized-cancer-centers-on-survival-outcome
#4
Julie Wolfson, Can-Lan Sun, Laura Wyatt, Wendy Stock, Smita Bhatia
Background: Adolescents and young adults (AYA; 15-39 years) with acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) experience inferior survival when compared with children. Impact of care at NCI-designated Comprehensive Cancer Centers (CCC) or Children's Oncology Group sites (COG) on survival disparities remains unstudied.Methods: Using the Los Angeles cancer registry, we identified 1,870 ALL or AML patients between 1 and 39 years at diagnosis. Cox regression analyses assessed risk of mortality; younger age + CCC/COG served as the referent group...
February 16, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28202237/bound-and-unbound-humic-acids-perform-different-roles-in-the-aggregation-and-deposition-of-multi-walled-carbon-nanotubes
#5
Xuezhi Yang, Qi Wang, Xiaolei Qu, Wei Jiang
Natural organic matter influences the carbon nanotube transport in aqueous environments. The role of bound humic acid (HA) on carbon nanotubes and unbound HA in bulk solution in the aggregation and deposition of carboxylated multi-walled carbon nanotubes (C-MWNTs) was examined in NaCl and CaCl2 electrolyte solution. Time-resolved dynamic light scattering and quartz crystal microbalance with dissipation monitoring were employed to investigate the C-MWNT aggregation and deposition kinetics, respectively. The critical coagulation concentration (CCC) of C-MWNTs is 30mM in NaCl and 3mM in CaCl2...
February 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28199420/clinical-profiles-of-adverse-drug-reactions-spontaneously-reported-at-a-single-korean-hospital-dedicated-to-children-with-complex-chronic-conditions
#6
Bomi Kim, Sunwha Zara Kim, Jin Lee, Ae Hee Jung, Sun-Hoi Jung, Hyeon-Joo Hahn, Hye Ryun Kang, Dong In Suh
Children with complex chronic conditions (CCC) are presumed to be vulnerable to adverse drug reactions (ADRs). The clinical profiles of ADRs in CCC are not well known. Herein, we aim to describe the ADR profiles in CCC with regard to typical presentations and vulnerable groups. We accessed the ADR yearly reports at a tertiary children's hospital whose practice is mainly dedicated to CCC and descriptively analyzed their clinical profiles according to the presence of a complex chronic condition, ADR severity, and age groups...
2017: PloS One
https://www.readbyqxmd.com/read/28197686/pre-therapeutic-factors-for-predicting-survival-after-radioembolization-a-single-center-experience-in-389-patients
#7
K J Paprottka, F Schoeppe, M Ingrisch, J Rübenthaler, N N Sommer, E De Toni, H Ilhan, M Zacherl, A Todica, P M Paprottka
PURPOSE: To determine pre-therapeutic predictive factors for overall survival (OS) after yttrium (Y)-90 radioembolization (RE). METHODS: We retrospectively analyzed the pre-therapeutic characteristics (sex, age, tumor entity, hepatic tumor burden, extrahepatic disease [EHD] and liver function [with focus on bilirubin and cholinesterase level]) of 389 consecutive patients with various refractory liver-dominant tumors (hepatocellular carcinoma [HCC], cholangiocarcinoma [CCC], neuroendocrine tumor [NET], colorectal cancer [CRC] and metastatic breast cancer [MBC]), who received Y-90 radioembolization for predicting survival...
February 14, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28194397/a-novel-human-tissue-engineered-3-d-functional-vascularized-cardiac-muscle-construct
#8
Mani T Valarmathi, John W Fuseler, Jeffrey M Davis, Robert L Price
Organ tissue engineering, including cardiovascular tissues, has been an area of intense investigation. The major challenge to these approaches has been the inability to vascularize and perfuse the in vitro engineered tissue constructs. Attempts to provide oxygen and nutrients to the cells contained in the biomaterial constructs have had varying degrees of success. The aim of this current study is to develop a three-dimensional (3-D) model of vascularized cardiac tissue to examine the concurrent temporal and spatial regulation of cardiomyogenesis in the context of postnatal de novo vasculogenesis during stem cell cardiac regeneration...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28190808/quantification-of-triacylglycerol-molecular-species-in-edible-fats-and-oils-by-gas-chromatographyflame-ionization-detector-using-correction-factors
#9
Kazuaki Yoshinaga, Junji Obi, Toshiharu Nagai, Hiroyuki Iioka, Akihiko Yoshida, Fumiaki Beppu, Naohiro Gotoh
In the present study, the resolution parameters and correction factors (CFs) of triacylglycerol (TAG) standards were estimated by gas chromatography-flame ionization detector (GC-FID) to achieve the precise quantification of the TAG composition in edible fats and oils. Forty seven TAG standards comprising capric acid, lauric acid, myristic acid, pentadecanoic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, and/or linolenic acid were analyzed, and the CFs of these TAGs were obtained against tripentadecanoyl glycerol as the internal standard...
February 10, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28188752/comparison-of-five-ki67-antibodies-regarding-reproducibility-and-capacity-to-predict-prognosis-in-breast-cancer-does-the-antibody-matter
#10
Balázs Ács, Janina Kulka, K Attila Kovács, Ivett Teleki, Anna-Mária Tőkés, Ágnes Meczker, Balázs Győrffy, Lilla Madaras, Tibor Krenács, A Marcell Szász
Although several antibodies are available for immunohistochemical (IHC) detection of Ki-67, even the most commonly used MIB-1 has not been validated yet. Our aim was to compare 5 commercially available antibodies for detection of Ki-67 in terms of agreement and their ability in predicting prognosis of breast cancer. Tissue microarrays were constructed from 378 breast cancer patients' representative formalin-fixed paraffin-embedded tumor blocks. Five antibodies were used to detect Ki-67 expression: MIB-1-using chromogenic detection and immunofluorescent labeled (IF) MIB1-, SP-6, 30-9, poly and B56...
February 8, 2017: Human Pathology
https://www.readbyqxmd.com/read/28187748/characterization-of-ovarian-clear-cell-carcinoma-using-target-drug-based-molecular-biomarkers-implications-for-personalized-cancer-therapy
#11
Mengjiao Li, Haoran Li, Fei Liu, Rui Bi, Xiaoyu Tu, Lihua Chen, Shuang Ye, Xi Cheng
BACKGROUND: It has long been appreciated that different subtypes (serous, clear cell, endometrioid and mucinous) of epithelial ovarian carcinoma (EOC) have distinct pathogenetic pathways. However, clinical management, especially chemotherapeutic regimens, for EOC patients is not subtype specific. Ovarian clear cell carcinoma (CCC) is a rare histological subtype of EOC, which exhibits high rates of recurrence and low chemosensitivity. We assessed potential therapeutic targets for ovarian CCC patients through analyzing the variation of drug-based molecular biomarkers expression between ovarian CCC and high-grade serous carcinoma (HGSC)...
February 10, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28179081/development-of-solvent-systems-with-room-temperature-ionic-liquids-for-the-countercurrent-chromatographic-ccc-separation-of-very-nonpolar-lipid-compounds
#12
Marco Müller, Michael Englert, Martyn J Earle, Walter Vetter
Solvent systems are not readily available for the separation of very nonpolar compounds by countercurrent chromatography (CCC). In this study we therefore evaluated the suitability of room temperature ionic liquids (IL) in organic solvents for the CCC separation of the extremely nonpolar lipid compounds tripalmitin (PPP) and cholesteryl stearate (CS). The four IL tested were [C10mim][OTf], [C2mim][NTf2], [P66614][NTf2], and [P66614][Cl]. Search for a CCC-suited solvent system started with solubility studies with fourteen organic solvents...
January 27, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28168365/mri-assessment-of-bone-marrow-oedema-in-the-sacroiliac-joints-of-patients-with-spondyloarthritis-is-the-spair-t2w-technique-comparable-to-stir
#13
Vitor Faeda Dalto, Rodrigo Luppino Assad, Michel Daoud Crema, Paulo Louzada-Junior, Marcello Henrique Nogueira-Barbosa
OBJECTIVE: To compare short tau inversion-recovery (STIR) with another fat saturation method in the assessment of sacroiliac joint inflammation. METHODS: This prospective cross-sectional study comprised 76 spondyloarthritis (SpA) patients who underwent magnetic resonance imaging of the sacroiliac joints in a 1.5-T scanner, using STIR, spectral attenuated inversion recovery (SPAIR) T2w and spectral presaturation with inversion recovery (SPIR) T1w post-contrast sequences...
February 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28166233/applying-spatio-temporal-models-to-assess-variations-across-health-care-areas-and-regions-lessons-from-the-decentralized-spanish-national-health-system
#14
Julián Librero, Berta Ibañez, Natalia Martínez-Lizaga, Salvador Peiró, Enrique Bernal-Delgado
OBJECTIVE: To illustrate the ability of hierarchical Bayesian spatio-temporal models in capturing different geo-temporal structures in order to explain hospital risk variations using three different conditions: Percutaneous Coronary Intervention (PCI), Colectomy in Colorectal Cancer (CCC) and Chronic Obstructive Pulmonary Disease (COPD). RESEARCH DESIGN: This is an observational population-based spatio-temporal study, from 2002 to 2013, with a two-level geographical structure, Autonomous Communities (AC) and Health Care Areas (HA)...
2017: PloS One
https://www.readbyqxmd.com/read/28166229/water-quality-criteria-for-copper-based-on-the-blm-approach-in-the-freshwater-in-china
#15
Yahui Zhang, Wenchao Zang, Lumei Qin, Lei Zheng, Ying Cao, Zhenguang Yan, Xianliang Yi, Honghu Zeng, Zhengtao Liu
The bioavailability and toxicity of metals to aquatic organisms are highly dependent on water quality parameters in freshwaters. The biotic ligand model (BLM) for copper is an approach to generate the water quality criteria (WQC) with water chemistry in the ambient environment. However, few studies were carried out on the WQCs for copper based on the BLM approach in China. In the present study, the toxicity for copper to native Chinese aquatic organisms was conducted and the published toxicity data with water quality parameters to Chinese aquatic species were collected to derive the WQCs for copper by the BLM approach...
2017: PloS One
https://www.readbyqxmd.com/read/28166117/the-respiratory-compensation-point-is-not-a-valid-surrogate-for-critical-power
#16
Jeffrey A Leo, Surendran Sabapathy, Michael J Simmonds, Troy J Cross
PURPOSE: It is unclear whether the respiratory compensation point (RCP) may be used as a valid surrogate for critical power (CP). Accordingly, we sought to determine the measurement agreement between CP and the RCP obtained during incremental cycling of varying ramp slopes. METHODS: Eleven recreationally-active men completed three separate ramp-incremental cycling protocols, where the work rate increment was slow (SR: 15 W[BULLET OPERATOR]min), medium (MR: 30 W[BULLET OPERATOR]min) or fast (FR: 45 W[BULLET OPERATOR]min)...
February 4, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28164678/reliability-of-total-bilirubin-measurements-in-whole-blood-from-preterm-neonates-using-a-blood-gas-analyzer
#17
Toshihiko Nambara, Yoshinori Katayama, Masahiro Enomoto, Shin Kikuchi, Atsuko Takei, Hitoshi Ikegami, Hirotaka Minami, Yong Kye Lee
BACKGROUND: Blood gas analyses are usually required more frequently in preterm neonates than in term neonates. If total bilirubin (TB) levels in whole blood measured using a blood gas analyzer are reliable, blood sampling for total serum bilirubin (TSB) levels alone can be reduced in preterm neonates. We investigated the reliability of measuring TB levels in whole blood from preterm neonates using the latest generation blood gas analyzer. METHODS: TB measured on an ABL90 FLEX blood gas analyzer and TSB analyzed in the hospital laboratory were simultaneously analyzed...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28161126/enhancing-silymarin-fractionation-using-the-conductor-like-screening-model-for-real-solvents
#18
Emma C Brace, Abigail S Engelberth
A significant hurdle for discovery of plant-derived products is the numerous trial-and-error experiments required to develop an effective purification strategy. To overcome the experimental burden, a quantum mechanics-based molecular modeling approach - known as the COnductor-like Screening Model for Real Solvents (COSMO-RS) - was used to predict a suitable two-phase solvent system to purify six silymarins from an aqueous mixture. Silymarins, a class of flavonolignans found in milk thistle (Silybum marianum L...
January 23, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28157182/efficient-genome-replication-of-hepatitis-b-virus-using-adenovirus-vector-a-compact-pregenomic-rna-expression-unit
#19
Mariko Suzuki, Saki Kondo, Manabu Yamasaki, Norie Matsuda, Akio Nomoto, Tetsuro Suzuki, Izumu Saito, Yumi Kanegae
The complicated replication mechanisms of hepatitis B virus (HBV) have impeded HBV studies and anti-HBV therapy development as well. Herein we report efficient genome replication of HBV applying adenovirus vectors (AdVs) showing high transduction efficiency. Even in primary hepatocytes derived from humanized mice the transduction efficiencies using AdVs were 450-fold higher compared than those using plasmids. By using an expression unit consisting of the CMV promoter, 1.03-copy HBV genome and foreign poly(A) signal, we successfully generated an improved AdV (HBV103-AdV) that efficiently provided 58 times more pregenomic RNA than previously reported AdVs...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28156488/new-primary-palliative-care-pc-model-for-community-cancer-clinics-ccc
#20
Deborah Gray, Stephanie Struve, Carol Huibregtse, Qiaofang Chen
: 159 Background: Our CCC serving a mixed rural/urban population is part of a large integrated healthcare system in Eastern WI. The closest PC specialist/team is 45 miles away at one of the tertiary care facilities. To fill this service gap we implemented a primary PC model. An initial outpatient palliative care family conference (OFC) and use of cancer nurse navigators (CNN)are hallmarks of this program. METHODS: The VLCC, housed in a standalone facility is staffed by two medical oncologists and one radiation oncologist and has an infusion center and a full-fledged radiation oncology unit with support staff, including cancer nurse navigators, research nurses, social workers, a clinical psychologist, a pharmacist, a nutritionist, a therapy dog and a chaplain...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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