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https://www.readbyqxmd.com/read/28437684/fibrillar-disruption-by-ac-electric-field-induced-oscillation-a-case-study-with-human-serum-albumin
#1
Shubhatam Sen, Monojit Chakraborty, Snigdha Goley, Swagata Dasgupta, Sunando DasGupta
The effect of oscillation induced by a frequency-dependent alternating current (AC) electric field to dissociate preformed amyloid fibrils has been investigated. An electrowetting-on-dielectric type setup has been used to apply the AC field of varying frequencies on preformed fibrils of human serum albumin (HSA). The disintegration potency has been monitored by a combination of spectroscopic and microscopic techniques. The experimental results suggest that the frequency of the applied AC field plays a crucial role in the disruption of preformed HSA fibrils...
April 13, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/28437596/membrane-transport-status-does-not-predict-peritonitis-risk-in-patients-on-peritoneal-dialysis
#2
Sarah So, Laraine Aw, Kamal Sud, Vincent W Lee
AIM: To determine whether peritoneal membrane transport status (MTS) is associated with peritonitis or poor peritoneal dialysis (PD)-related outcomes. METHODS: This retrospective cohort study analysed data of incident adult patients on PD in Western Sydney between October 1, 2003 and December 31, 2012. Only patients who underwent peritoneal equilibration and adequacy tests within 6 months of commencement were included. Kaplan-Meier survival curves for time until first peritonitis and time until composite endpoint of peritonitis, death, or technique failure, censored for transplant, were constructed...
April 24, 2017: Nephrology
https://www.readbyqxmd.com/read/28437285/monitoring-protein-unbound-valproic-acid-serum-concentrations-in-clinical-practice
#3
Eveline Wallenburg, Bas Klok, Karin de Jong, Monique de Maat, Nielka van Erp, Sonja Stalpers-Konijnenburg, Guus Essink, Matthijs van Luin
BACKGROUND: Valproic acid (VPA) is an effective anti-epileptic drug and mood stabilizer. A key characteristic of VPA is its high and saturable protein binding at higher concentrations. While the unbound concentration of VPA is responsible for its pharmacological activity, total drug concentrations are monitored in routine clinical practice. Therapeutic drug monitoring (TDM) of unbound VPA is recommended for specific clinical situations. The goal of this study was to evaluate TDM requests for unbound VPA in clinical practice...
April 6, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28437284/a-retrospective-study-on-mycophenolic-acid-drug-interactions-effect-of-prednisone-sirolimus-and-tacrolimus-with-mpa
#4
Ana Catalina Alvarez-Elías, Elisa Catherine Yoo, Ekaterina Kirilova Todorova, Ram Nivas Singh, Guido Filler
Mycophenolic acid (MPA), the active compound of mycophenolate mofetil (MMF), is widely used as an antirejection drug following renal transplantation. There is growing evidence supporting the notion that there is substantial variability in the intra- and inter-patient exposure to MPA. Drug interactions involving MPA with tacrolimus, steroids, and sirolimus have been understudied. The objective of this study was to determine the relationship between MPA, steroids, tacrolimus, and sirolimus. MPA trough concentrations from 37 pediatric renal transplant recipients (mean age 7...
April 6, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28437192/phototoxicity-of-vascular-endothelial-cells-caused-by-contact-with-talaporfin-sodium-for-15-120-min-in-vitro-and-in-vivo-studies
#5
Risa Hamada, Emiyu Ogawa, Tsunenori Arai
OBJECTIVE: To reveal the mechanism of vascular patency in the myocardium after photosensitization immediately after talaporfin sodium (TS) injection in a canine model, we investigated acute injury to vascular endothelial cells (VECs) in vitro and in vivo. BACKGROUND DATA: There are many reports of vascular shutdown within the target region in photodynamic therapy with TS. Vascular patency within healthy canine myocardium in which a photosensitization reaction starts immediately after injection of TS has been reported...
February 22, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28437180/a-novel-drug-induced-hybrid-electrospun-pcl-cell-derived-ecm-scaffold-for-liver-tissue-engineering
#6
Rhiannon Grant, David Hay, Anthony Callanan
Liver transplant is the only treatment option for patients with end-stage liver failure, however there are too few donor livers available for transplant. Whole organ tissue engineering presents a potential solution to the problem of rapidly escalating donor liver shortages world-wide. A major challenge for liver tissue engineers is the creation of a hepatocyte micro-environment; a niche in which liver cells can survive and function optimally. While polymers and decellularized tissues pose an attractive option for scaffold manufacturing, neither alone has thus far proved sufficient...
February 24, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28436555/hemodynamics-as-measured-with-color-doppler-sonography-in-early-stage-obesity-related-nephropathy-in-children
#7
Xuehua He, Buyun Guan, Liling Zhu
OBJECTIVES: We retrospectively studied hemodynamic changes in the interlobar artery to assess the clinical value of color Doppler sonography for detecting preclinical obesity-related nephropathy. METHODS: Color Doppler renal sonography was performed in 52 children with obesity-related nephropathy and 51 control children with simple obesity. The interlobar artery resistive index (RI) was measured and compared with clinical data and laboratory indicators. RESULTS: The left RI (mean ± SD, 0...
April 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28436303/choline-supplementation-during-pregnancy-protects-against-gestational-lipopolysaccharide-induced-inflammatory-responses
#8
Min Zhang, Xinjia Han, Juejie Bao, Jinying Yang, Shao-Qing Shi, Robert E Garfield, Huishu Liu
OBJECTIVES: To estimate the effects and mechanisms of choline, an essential nutrient and a selective α7 nicotinic acetylcholine receptor (α7nAChR) agonist, on the prevention of symptoms and the effects on the cholinergic anti-inflammatory pathways (CAP) in a lipopolysaccharide (LPS)-induced inflammatory response in a rat model. METHODS: Inflammation was induced by LPS treatment (1.0 μg LPS/kg body weight) on gestational day (GD) 14. Nonpregnant and pregnant Sprague Dawley rats were placed on a normal choline diet (1...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28436296/synthesis-characterization-dna-and-hsa-binding-studies-of-isomeric-pd-ii-antitumor-complexes-using-spectrophotometry-techniques
#9
Sareh Zareian-Jahromi, Hassan Mansouri-Torshizi
Two new Palladium(II) isomeric complexes, [Pd(Gly)(Leu)](I) and [Pd(Gly)(Ile)](II), where Gly is glycine, and Leu and Ile are isomeric amino acids (leucine and isoleucine), have been synthesized and characterized by elemental analysis, molar conductivity measurements, FT-IR, (1)H NMR and UV-Vis. The complexes have been tested for their In vitro cytotoxicity against cancer cell line K562 and their binding properties to calf thymus DNA (CT-DNA) and human serum albumin (HSA) have also been investigated by multispectroscopic techniques...
April 23, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28436117/early-introduction-of-oral-paricalcitol-in-renal-transplant-recipients-an-open-label-randomized-study
#10
Hege Kampen Pihlstrøm, Franscesca Gatti, Clara Hammarström, Ivar Anders Eide, Monika Kasprzycka, Junbai Wang, Guttorm Haraldsen, My Hanna Sofia Svensson, Karsten Midtvedt, Geir Mjøen, Dag Olav Dahle, Anders Hartmann, Hallvard Holdaas
In stable renal transplant recipients with hyperparathyroidism, previous studies have indicated that vitamin D agonist treatment might have anti-proteinuric effects. Animal studies indicate possible anti-fibrotic and anti-inflammatory effects. Early introduction of paricalcitol in de-novo renal transplant recipients might reduce proteinuria and prevent progressive allograft fibrosis. We performed a single-centre, prospective, randomized, open-label trial investigating effects of paricalcitol 2μg/day added to standard care...
April 24, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28435898/high-sensitivity-c-reactive-protein-albumin-ratio-as-a-predictor-of-in-hospital-mortality-in-older-adults-admitted-to-the-emergency-department
#11
Jaehun Oh, Soo Hyun Kim, Kyu Nam Park, Sang Hoon Oh, Young Min Kim, Han Joon Kim, Chun Song Youn
OBJECTIVE: The objective of this study was to test the hypothesis that an elevated high-sensitivity C-reactive protein (hs-CRP)/albumin ratio at admission increases the risk of mortality in older patients admitted to the hospital via the emergency department (ED). METHODS: We performed a retrospective analysis of patients admitted to the ED with any medical problem between May 2013 and October 2013 who were older than 65 years. The hs-CRP and albumin levels were measured at the time of admission to the ED...
March 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28435458/phosphorylcholine-based-stealthy-nanocapsules-enabling-tumor-microenvironment-responsive-doxorubicin-release-for-tumor-suppression
#12
Gan Liu, Hsiang-I Tsai, Xiaowei Zeng, Yixiong Zuo, Wei Tao, Jun Han, Lin Mei
The efficient delivery of anticancer drugs into tumor tissues to improve therapeutic efficacy remains an urgent demand. To satisfy this demand, a drug delivery system based on a stealthy nanocapsule was developed. This nanocapsule was fabricated by encapsulating stealthy cross-linked poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) and benzaldehyde groups around the protein bovine serum albumin (BSA) followed by conjugation of doxorubicin (Dox) through a pH-responsive benzoic-imine bond. The in vitro results show that the Dox-conjugated nanocapsule (nBSA-Dox) released the drug under an acidic tumor microenvironment (pH ~6...
2017: Theranostics
https://www.readbyqxmd.com/read/28435265/toxicity-studies-of-six-types-of-carbon-nanoparticles-in-a-chicken-embryo-model
#13
Natalia Kurantowicz, Ewa Sawosz, Gabriela Halik, Barbara Strojny, Anna Hotowy, Marta Grodzik, Radosław Piast, Wanvimol Pasanphan, André Chwalibog
In the present study, the toxicity of six different types of carbon nanoparticles (CNPs) was investigated using a chicken-embryo model. Fertilized chicken eggs were divided into the following treatment groups: placebo, diamond NPs, graphite NPs, pristine graphene, small graphene oxide, large graphene oxide, and reduced graphene oxide. Experimental solutions at a concentration of 500 μg/mL were administrated into the egg albumin. Gross pathology and the rate of survival were examined after 5, 10, 15, and 20 days of incubation...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28435261/ph-sensitive-au-bsa-dox-fa-nanocomposites-for-combined-ct-imaging-and-targeted-drug-delivery
#14
He Huang, Da-Peng Yang, Minghuan Liu, Xiangsheng Wang, Zhiyong Zhang, Guangdong Zhou, Wei Liu, Yilin Cao, Wen Jie Zhang, Xiansong Wang
Albumin-based nanoparticles (NPs) as a drug delivery system have attracted much attention owing to their nontoxicity, non-immunogenicity, great stability and ability to bind to many therapeutic drugs. Herein, bovine serum albumin (BSA) was utilized as a template to prepare Au-BSA core/shell NPs. The outer layer BSA was subsequently conjugated with cis-aconityl doxorubicin (DOX) and folic acid (FA) to create Au-BSA-DOX-FA nanocomposites. A list of characterizations was undertaken to identify the successful conjugation of drug molecules and targeted agents...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28435196/hemato-biochemical-alterations-and-urinalysis-in-dogs-suffering-from-benign-prostatic-hyperplasia
#15
M R Das, R C Patra, R K Das, P K Rath, B P Mishra
AIM: The study was designed to evaluate the hemato-biochemical alterations, urinalysis along with histomorphological and histological changes of prostate glands in dogs affected with benign prostatic hyperplasia (BPH) in and around Bhubaneswar, Odisha, India. MATERIALS AND METHODS: In toto, 445 dogs presented to the Teaching Veterinary Clinical Complex of the College of Veterinary Sciences and Animal Husbandry, one Government Veterinary Hospital and two pet clinics in and around Bhubaneswar screened for the presence of BPH...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28435195/intestinal-microbial-ecology-and-hematological-parameters-of-broiler-fed-cassava-waste-pulp-fermented-with-acremonium-charticola
#16
Sugiharto Sugiharto, Turrini Yudiarti, Isroli Isroli, Endang Widiastuti, Fatan Dwi Putra
AIM: The aim of this study was to evaluate the effect of feeding Acremonium charticola-fermented cassava pulp (AC-FCP) on the intestinal microbial ecology and hematological indices of broiler chickens. MATERIALS AND METHODS: A total of 240 male Lohman day-old-chicks were randomly allotted to one of the four experimental diets including control diet, control diet + antimicrobials (neomycin; 300 mg/kg diet), diet containing AC-FCP (16 g/100 g diet) or diet containing AC-FCP + antimicrobials...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28435101/interaction-of-glucocorticoids-and-progesterone-derivatives-with-human-serum-albumin
#17
Rola Abboud, Mohammad Akil, Catherine Charcosset, Hélène Greige-Gerges
Glucocorticoids (GCs) and progesterone derivatives (PGDs) are steroid hormones with well-known biological activities. Their interaction with human serum albumin (HSA) may control their distribution. Their binding to albumin is poorly studied in literature. This paper deals with the interaction of a series of GCs (cortisol, cortisone, prednisolone, prednisone, 6-methylprednisolone and 9-fluorocortisol acetate) and PGDs (progesterone, hydroxylated PGDs, methylated PGDs and dydrogesterone) with HSA solution (pH 7...
April 20, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28434976/compartmentalized-microfluidic-perfusion-system-to-culture-human-induced-pluripotent-stem-cell-aggregates
#18
Yuki Kondo, Koji Hattori, Shota Tashiro, Eri Nakatani, Ryosuke Yoshimitsu, Taku Satoh, Shinji Sugiura, Toshiyuki Kanamori, Kiyoshi Ohnuma
Microfluidic perfusion systems enable small-volume cell cultures under precisely controlled microenvironments, and are typically developed for cell-based high-throughput screening. However, most such systems are designed to manipulate dissociated single cells, not cell aggregates, and are thus unsuitable to induce differentiation in human induced pluripotent stem cells (hiPSCs), which is conventionally achieved by using cell aggregates to increase cell-cell interactions. We have now developed a compartmentalized microfluidic perfusion system with large flow channels to load, culture, and observe cell aggregates...
April 20, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28434761/improvement-in-nutritional-status-in-patients-with-chronic-kidney-disease-4-by-a-nutrition-education-program-with-no-impact-on-renal-function-and-determined-by-male-sex
#19
Almudena Pérez-Torres, Elena González Garcia, Helena Garcia-Llana, Gloria Del Peso, Ana María López-Sobaler, Rafael Selgas
OBJECTIVE: Protein-energy wasting (PEW) is associated with increased morbidity and mortality and a rapid deterioration of kidney function in patients with chronic kidney disease (CKD). However, there is little information regarding the effect of nutrition intervention. The aims of this study were to evaluate the efficacy and safety of a nutrition education program (NEP) in patients with nondialysis dependent CKD (NDD-CKD), based on the diagnostic criteria for PEW proposed by the International Society of Renal Nutrition and Metabolism...
April 20, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28434326/urinary-albumin-to-creatinine-ratio-in-diagnosis-and-risk-stratification-of-renal-al-amyloidosis
#20
Giovanni Palladini, Paolo Milani, Marco Basset, Francesca Russo, Francesca Lavatelli, Mario Nuvolone, Giovanni Ferraro, Margherita Bozzola, Andrea Foli, Giampaolo Merlini
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
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