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https://www.readbyqxmd.com/read/28319815/shape-dependent-enzyme-like-activity-of-co3o4-nanoparticles-and-their-conjugation-with-his-tagged-egfr-single-domain-antibody
#1
Wei Zhang, Jinlai Dong, Yang Wu, Peng Cao, Lina Song, Ming Ma, Ning Gu, Yu Zhang
In this study, Co3O4 nanopolyhedrons, nanocubes, nanoplates and nanorods were synthesized and characterized. Furthermore, the peroxidase- and catalase-like activities of these Co3O4 nanoparticles (NPs) were studied and influence of the exposed crystal planes was explored. According to their morphology and peroxidase-like activity, dimercaptosuccinic acid (DMSA) modified Co3O4 nanopolyhedrons synthesized via coprecipitation method (Co3O4 NHs) were selected as a proper candidate for the immunohistochemical (IHC) detection of epidermal growth factor receptor (EGFR) expression in non-small cell lung cancer (NSCLC) tissues...
February 28, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28299237/asymptomatic-urolithiasis-complicated-by-nephrocutaneous-fistula
#2
Marion Hamard, Gaël Amzalag, Christoph D Becker, Pierre-Alexandre Poletti
Asymptomatic spontaneous nephrocutaneous fistula is a rare and severe complication of chronic urolithiasis. We report a case of 56-year-old woman with a nephrocutaneous fistula (NFC) which developed from a superinfected urinoma following calyceal rupture due to an obstructing calculus in the left ureter. The patient was clinically asymptomatic and came to the emergency department for a painless left flank fluctuating mass. This urinoma was superinfected, with a delayed development of renal abscesses and perirenal phlegmon found on contrast-enhanced uro-computed tomography (CT), responsible for left renal vein thrombophlebitis and left psoas abscess...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28256495/the-evaluation-of-renal-parenchymal-scarring-using-static-renal-scintigraphy-after-percutaneous-nephrolithotomy-operations
#3
S Yalcinkaya, N Ates, M Yuksel, E Islamoglu, H Tokgoz, E U Ates, A Yildız, S Yilmaz, M Savas
OBJECTIVE: To analyze whether operative techniques and other variables related to patient and renal stone characteristics affect potential renal parenchymal damage. MATERIALS AND METHODS: The study population comprised 64 patients who underwent percutaneous nephrolithotomy operations (PCNL). Data of the operated renal units, renal stone burden, route and number of entries, dilation techniques, duration of surgery, preoperative and postoperative glomerular filtration rate (GFR) and relative dimercaptosuccinic acid (DMSA) uptakes, as well as the changes in hemoglobin values, were recorded and analyzed for all patients...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28250714/the-effect-of-core-and-lanthanide-ion-dopants-in-sodium-fluoride-based-nanocrystals-on-phagocytic-activity-of-human-blood-leukocytes
#4
Bartlomiej Sojka, Aurelia Liskova, Miroslava Kuricova, Mateusz Banski, Jan Misiewicz, Maria Dusinska, Mira Horvathova, Silvia Ilavska, Michaela Szabova, Eva Rollerova, Artur Podhorodecki, Jana Tulinska
Sodium fluoride-based β-NaLnF4 nanoparticles (NPs) doped with lanthanide ions are promising materials for application as luminescent markers in bio-imaging. In this work, the effect of NPs doped with yttrium (Y), gadolinium (Gd), europium (Eu), thulium (Tm), ytterbium (Yb) and terbium (Tb) ions on phagocytic activity of monocytes and granulocytes and the respiratory burst was examined. The surface functionalization of <10-nm NPs was performed according to our variation of patent pending ligand exchange method that resulted in meso-2,3-dimercaptosuccinic acid (DMSA) molecules on their surface...
2017: Journal of Nanoparticle Research: An Interdisciplinary Forum for Nanoscale Science and Technology
https://www.readbyqxmd.com/read/28220909/effects-of-meso-2-3-dimercaptosuccinic-acid-potassium-iodide-and-chlorophyll-on-lead-accumulation-in-male-mice
#5
Ying Xie, Guifeng Zhou
OBJECTIVES: Lead (Pb) pollution is a serious public health problem all over the world, it especially plays severe damage role in children's health. Apart from reducing lead-induced damages, the decrease of lead accumulation is also critical. This study has been the first attempt to investigate effects of meso-2,3-dimercaptosuccinic acid (DMSA), potassium iodide (KI) and chlorophyll (Chl) on lead accumulation in male mice. MATERIAL AND METHODS: Eighty healthy Kunming male mice were selected and divided randomly into 8 groups...
February 21, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28215830/initial-urological-evaluation-and-management-of-children-with-neurogenic-bladder-due-to-myelomeningocele
#6
Cristian Sager, Carol Burek, Juan Pablo Corbetta, Santiago Weller, Javier Ruiz, Ramiro Perea, Enrique Lago, Yesica Gomez, Victor Durán, Juan Carlos López
INTRODUCTION: The proactive management of children with myelomeningocele (MMC) has contributed to decreasing their progression to end-stage renal disease, thanks to early urological evaluation and timing implementation of treatments. OBJECTIVE: To demonstrate that early urological evaluation of the urinary tract in MMC shows functional alterations in most cases, and that it requires medical intervention, even when in some cases the complementary imaging studies do not show any abnormalities...
January 30, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28215176/the-comparison-the-serum-strem1-levels-between-children-with-upper-and-lower-uti
#7
Samileh Noorbakhsh, Fahime Ehsanipour, Vida Zarabi, Zahra Movahedi, Nahid Rahimzadeh
Back ground: UTI is a common and important clinical problem in Iranian children which is often difficult on clinical grounds. Distinguishing the upper UTI from lower UTI is very important for clinician. The aim of this study was to determine the usefulness of serum STREM-1 level in patients with UTI to find out if it can use for distinguishing upper UTI from lower UTI or not. METHODS: In this prospective cross sectional study (2010-2011) we compared the serum level of STREM-1 (pg. /ml) in 36 proven UTI cases (24 upper and 12 lower UTI ) with 25 normal children (without UTI) in Rasoul Akram hospital Tehran, Iran...
February 16, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28169298/the-value-of-delta-neutrophil-index-in-young-infants-with-febrile-urinary-tract-infection
#8
Jung Won Lee, Seong Heon Kim, Se Jin Park, Keum Hwa Lee, Jae Hyon Park, Andreas Kronbichler, Michael Eisenhut, Ji Hong Kim, Jong Wook Lee, Jae Il Shin
Delta neutrophil index (DNI) is the fraction of circulating immature granulocytes, which reflects severe bacterial infections and septic condition but has not been studied in urinary tract infection (UTI). Here, we evaluated the value of DNI in predicting acute pyelonephritis (APN) or vesicoureteral reflux (VUR) using the data of 288 patients. Conventional inflammatory markers (white blood cell [WBC] count, erythrocyte sedimentation rate [ESR], C-reactive protein [CRP]), and DNI were measured. WBC, CRP, ESR and DNI were higher in APN than in lower UTI (p < 0...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28154883/-urinary-tract-infections-in-children
#9
E Lellig, M Apfelbeck, J Straub, A Karl, S Tritschler, C G Stief, M Riccabona
Urinary tract infections (UTI) are the most common bacterial infections in children. The symptoms are not very specific and range from abdominal pain, poor feeding to nocturnal urinary incontinence. The technique of collecting urine plays an important role for securing the diagnosis. The best way to obtain urine in non-toilet-trained children is catheterization or suprapubic bladder aspiration. In toilet-trained children midstream urine is an acceptable alternative after cleaning the foreskin or labia. In the case of an infection a prompt empirical antibiotic therapy is necessary to reduce the risk of parenchymal scarring of the kidneys...
February 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28115250/lead-adsorption-anticoagulation-and-in-vivo-toxicity-studies-on-the-new-magnetic-nanomaterial-fe3o4-sio2-dmsa-as-a-hemoperfusion-adsorbent
#10
Yang Xiang, Zhiming Bai, Shufang Zhang, Yan Sun, Shunlan Wang, Xiaobin Wei, Wenshi Mo, Jiale Long, Zhenxiang Liu, Chao Yang, Linlin Zheng, Xueyi Guo, Wang Xiaoyang, Fangfang Mao, Ningchuan Feng
This project aimed to develop and characterize a new nanoadsorbent for hemoperfusion. Fe3O4 nanoparticles synthesized by a facile solvothermal method were coated with SiO2 and further modified by DMSA. TEM, XRD, FTIR, XPS and SEM were performed before and after lead adsorption to reveal the general performance and adsorption mechanism. Rabbit lead poisoning models were established to study the adsorption rate; then, a pig hemoperfusion experiment was used for further validation. In addition, coagulation, liver, kidney and heart function, blood lipids, electrolytes and the immune inflammatory system were studied before and after hemoperfusion...
January 20, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28106540/detection-of-human-breast-cancer-cells-using-a-2-deoxy-d-glucose-functionalized-superparamagnetic-iron-oxide-nanoparticles
#11
Xiu-Hong Shan, Peng Wang, Fei Xiong, Hao-Yue Lu, Hui Hu
BACKGROUND: Breast cancer is one of the most common type of female cancer worldwide and represents 14% of cancer-related deaths in women. Early detection is the most important factor for treatment and prognosis of breast cancer. In most countries, the women are currently screened with mammography only. Even though there has been considerable progress in the detection, surgical therapy, hormonal and target therapy of breast cancer, there are about ∼ 3500 000 women who die from breast cancer each year...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28102523/the-effect-of-superparamagnetic-iron-oxide-nanoparticle-surface-charge-on-antigen-cross-presentation
#12
Yongbin Mou, Yun Xing, Hongyan Ren, Zhihua Cui, Yu Zhang, Guangjie Yu, Walter J Urba, Qingang Hu, Hongming Hu
Magnetic nanoparticles (NPs) of superparamagnetic iron oxide (SPIO) have been explored for different kinds of applications in biomedicine, mechanics, and information. Here, we explored the synthetic SPIO NPs as an adjuvant on antigen cross-presentation ability by enhancing the intracellular delivery of antigens into antigen presenting cells (APCs). Particles with different chemical modifications and surface charges were used to study the mechanism of action of antigen delivery. Specifically, two types of magnetic NPs, γFe2O3/APTS (3-aminopropyltrimethoxysilane) NPs and γFe2O3/DMSA (meso-2, 3-Dimercaptosuccinic acid) NPs, with the same crystal structure, magnetic properties, and size distribution were prepared...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28087230/the-impact-of-obesity-on-febrile-urinary-tract-infection-and-renal-scarring-in-children-with-vesicoureteral-reflux
#13
H J Byun, J Y Ha, W Jung, B H Kim, C H Park, C I Kim
INTRODUCTION: It has become clear that obesity is associated with a variety of infectious diseases, including urinary tract infection (UTI) and renal scarring. OBJECTIVE: The aim of this study was to evaluate the association between obesity and the degree of febrile UTI (fUTI) and renal scarring in children with vesicoureteral reflux (VUR), and to stratify the results into obesity subcategories. STUDY DESIGN: A total of 186 patients were diagnosed with VUR between January 2002 and December 2008...
February 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28072624/the-effect-of-antiseptic-on-99mtc-dmsa-scans
#14
Tahereh Firuzyar, Tahereh Ghaedian
Approximately 30 years ago, it has been suggested that chlorhexidine, which is used as antiseptic, can produce Tc colloid complex during Tc-dimercaptosuccinic acid (DMSA) preparation. However, in all cases of liver and spleen uptake in Tc-DMSA scan, it should still be kept in mind because of the introduction of new antiseptic brands with different formulation under various names. Our case is just a sample of this effect, which resulted from application of a new brand of antiseptic by technologists in our center that unintentionally led to low-quality Tc-DMSA scans for a period, and after restrict control of all other confounding factors in the preparation of kit, it was just resolved by changing antiseptic to ethanol...
March 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28042941/ph-responsive-self-sacrificial-nanotheranostic-agent-for-potential-in-vivo-and-in-vitro-dual-modal-mri-ct-imaging-real-time-and-in-situ-monitoring-of-cancer-therapy
#15
Ludan Yue, Jinlong Wang, Zhichao Dai, Zunfu Hu, Xue Chen, Yafei Qi, Xiuwen Zheng, Dexin Yu
Multifunctional nanotheranostic agents have been highly commended due to the application to image-guided cancer therapy. Herein, based on the chemically disordered face centered cubic (fcc) FePt nanoparticles (NPs) and graphene oxide (GO), we develop a pH-responsive FePt-based multifunctional theranostic agent for potential in vivo and in vitro dual modal MRI/CT imaging and in situ cancer inhibition. The fcc-FePt will release highly active Fe ions due to the low pH in tumor cells, which would catalyze H2O2 decomposition into reactive oxygen species (ROS) within the cells and further induce cancer cell apoptosis...
January 20, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28027609/prediction-of-high-grade-vesicoureteral-reflux-in-children-younger-than-2-years-using-renal-sonography-a-preliminary-study
#16
Sun Kyoung You, Jong Chun Kim, Won Hong Park, So Mi Lee, Hyun-Hae Cho
OBJECTIVES: To investigate the predictive value of renal sonography for vesicoureteral reflux (VUR) and the efficacy of renal sonography, technetium Tc 99m-labeled dimercaptosuccinic acid (DMSA) scanning, and a combination of the two for VUR screening in children younger than 2 years with a first episode of febrile urinary tract infection. METHODS: Thirty-eight patients younger than 2 years with a first febrile urinary tract infection were included in our study, which was conducted from April through October 2014...
April 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27994408/comparative-evaluation-of-efficacy-of-ethylenediaminetetraacetic-acid-maleic-acid-and-dimercaptosuccinic-acid-against-the-combination-of-these-with-sodium-hypochlorite-for-removal-of-smear-layer-an-in-vitro-scanning-electron-microscope-study
#17
Rishikesh Meshram, Nikhil Sathawane, Roshan Samuel, Narayan Gunaji Jibhkate, Hitesh Gyanani, Sanjay Patil
CONTEXT: The effect of dimercaptosuccinic acid (DMSA) and maleic acid (MA) when used alone on smear layer has been evaluated with mixed results, but their effect when combined with sodium hypochlorite (NaOCl) has not been studied. AIM: To compare the effectiveness of ethylenediaminetetraacetic acid, MA, and DMSA against the combination of these with NaOCl in the removal of smear layer. SETTINGS AND DESIGN: n = 4pq/L(2) q = 1 - p p = Incident rate L = Allowable error...
October 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27923180/insight-into-the-structure-and-stability-of-tc-and-re-dmsa-complexes-a-computational-study
#18
Daniel Hernández-Valdés, Alejandro Blanco-González, Ariel García-Fleitas, Zalua Rodríguez-Riera, Giuseppe Meola, Roger Alberto, Ulises Jáuregui-Haza
Meso-2,3-dimercaptosuccinic acid (DMSA) is used in nuclear medicine as ligand for preparation of diagnostic and therapy radiopharmaceuticals. DMSA has been the subject of numerous investigations during the past three decades and new and significant information of the chemistry and pharmacology of DMSA complexes have emerged. In comparison to other ligands, the structure of some DMSA complexes is unclear up today. The structures and applications of DMSA complexes are strictly dependent on the chemical conditions of their preparation, especially pH and components ratio...
January 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/27919185/modeling-the-effect-of-succimer-dmsa-dimercaptosuccinic-acid-chelation-therapy-in-patients-poisoned-by-lead
#19
Jan C H van Eijkeren, J Daniël N Olie, Sally M Bradberry, J Allister Vale, Irma de Vries, Harvey J Clewell, Jan Meulenbelt, Claudine C Hunault
CONTEXT: Kinetic models could assist clinicians potentially in managing cases of lead poisoning. Several models exist that can simulate lead kinetics but none of them can predict the effect of chelation in lead poisoning. Our aim was to devise a model to predict the effect of succimer (dimercaptosuccinic acid; DMSA) chelation therapy on blood lead concentrations. MATERIALS AND METHODS: We integrated a two-compartment kinetic succimer model into an existing PBPK lead model and produced a Chelation Lead Therapy (CLT) model...
February 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/27916642/magnetic-hyperthermia-and-ph-responsive-effective-drug-delivery-to-the-sub-cellular-level-of-human-breast-cancer-cells-by-modified-cofe2o4-nanoparticles
#20
Yunok Oh, Madhappan Santha Moorthy, Panchanathan Manivasagan, Subramaniyan Bharathiraja, Junghwan Oh
Magnetic iron oxide nanoparticles (MNPs) have been extensively utilized in a wide range of biomedical applications including magnetic hyperthermia agent. To improve the efficiency of the MNPs in therapeutic applications, in this study, we have synthesized CoFe2O4 nanoparticles and its surface was further functionalized with meso-2,3-dimercaptosuccinic acid (DMSA). The anticancer agent, Doxorubucin (DOX) was conjugated with CoFe2O4@DMSA nanoparticle to evaluate the combined effects of thermotherapy and chemotherapy...
February 2017: Biochimie
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