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https://www.readbyqxmd.com/read/28532077/preparation-of-robust-braid-reinforced-poly-vinyl-chloride-ultrafiltration-hollow-fiber-membrane-with-antifouling-surface-and-application-to-filtration-of-activated-sludge-solution
#1
Zhuang Zhou, Saeid Rajabzadeh, Lifeng Fang, Taro Miyoshi, Yuriko Kakihana, Hideto Matsuyama
Braid-reinforced hollow fiber membranes with high mechanical properties and considerable antifouling surface were prepared by blending poly(vinyl chloride) (PVC) with poly(vinyl chloride-co-poly(ethylene glycol) methyl ether methacrylate) (poly(VC-co-PEGMA)) copolymer via non-solvent induced phase separation (NIPS). The tensile strength of the braid-reinforced PVC hollow fiber membranes were significantly larger than those of previously reported various types of PVC hollow fiber membranes. The high interfacial bonding strength indicated the good compatibility between the coating materials and the surface of polyethylene terephthalate (PET)-braid...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532067/development-of-biocompatible-and-safe-polyethersulfone-hemodialysis-membrane-incorporated-with-functionalized-multi-walled-carbon-nanotubes
#2
Muhammad Nidzhom Zainol Abidin, Pei Sean Goh, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Hasrinah Hasbullah, Noresah Said, Siti Hamimah Sheikh Abdul Kadir, Fatmawati Kamal, Mohd Sohaimi Abdullah, Be Cheer Ng
A novel approach in the design of a safe, high performance hemodialysis membrane is of great demand. Despite many advantages, the employment of prodigious nanomaterials in hemodialysis membrane is often restricted by their potential threat to health. Hence, this work focusses on designing a biocompatible polyethersulfone (PES) hemodialysis membrane embedded with poly (citric acid)-grafted-multi walled carbon nanotubes (PCA-g-MWCNTs). Two important elements which could assure the safety of the nanocomposite membrane, i...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532060/design-and-characterization-of-biodegradable-macroporous-hybrid-inorganic-organic-polymer-for-orthopedic-applications
#3
Sunita PremVictor, Jibin Kunnumpurathu, M G Gayathri Devi, K Remya, Vineeth M Vijayan, Jayabalan Muthu
We have engineered hybrid polymer products based on a hybrid inorganic-organic comacromer consisting of hydroxyapatite (HA), carboxyl terminated polypropylene fumarate (CTPPF), PEG300 and ascorbic acid (AA) as a bone graft material. The integration and the spatial distribution of HA in the polymer backbone were facilitated by silanisation and 1-ethyl-3-(-3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) coupling technique. These comacromers and crosslinked polymer products were characterized by Fourier transform infrared spectroscopy (FTIR), Nuclear magnetic resonance (NMR), Scanning electron microscopy (SEM) and Raman mapping techniques...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531895/arterial-stiffness-is-an-independent-risk-factor-for-anemia-after-percutaneous-native-kidney-biopsy
#4
Keiko Tanaka, Masashi Kitagawa, Akifumi Onishi, Toshio Yamanari, Ayu Ogawa-Akiyama, Koki Mise, Tatsuyuki Inoue, Hiroshi Morinaga, Haruhito A Uchida, Hitoshi Sugiyama, Jun Wada
BACKGROUND/AIMS: Bleeding is the most common complication after renal biopsy. Although numerous predictors of bleeding have been reported, it remains unclear whether arterial stiffness affects bleeding complications. METHOD: We performed an observational study of the renal biopsies performed in our division over an approximately 6-year period (May 2010 to May 2016). The clinical and laboratory factors were analyzed to reveal the risk factors associated with bleeding, with a focus on anemia (defined as a ≥10% decrease in hemoglobin [Hb] after biopsy)...
May 25, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28531794/binding-of-the-anticancer-drug-bi-2536-to-human-serum-albumin-a-spectroscopic-and-theoretical-study
#5
Jesús Fernández-Sainz, Pedro J Pacheco-Liñán, José M Granadino-Roldán, Iván Bravo, Andrés Garzón, Jaime Rubio-Martínez, José Albaladejo
BI-2536 is a potent Polo-like kinase inhibitor which induces apoptosis in diverse human cancer cell lines. The binding affinity of BI-2536 for human serum albumin (HSA) protein may define its pharmacokinetic and pharmacodynamic profile. We have studied the binding of BI-2536 to HSA by means of different spectroscopic techniques and docking calculations. We have experimentally observed that the affinity of BI-2536 for HSA is higher than that of other common HSA binding drugs. Therefore, it can be postulated that the drug dose should be increased to achieve a certain concentration of free drug in plasma, although BI-2536 could also reach tumour tissues by uptaking HSA/BI-2536 complex...
May 12, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28531785/the-relationship-between-malnutrition-risk-and-clinical-outcomes-in-a-cohort-of-frail-older-hospital-patients
#6
Adrian Slee, Deborah Birch, David Stokoe
BACKGROUND & AIMS: Malnutrition has an adverse effect on clinical outcomes and frail older people may be at greater risk of malnutrition. The purpose and aims of this study was to investigate the relationship between markers of malnutrition risk and clinical outcomes in a cohort of frail older hospital patients. METHODS: 78 frail older hospital patients had the following measurements recorded; length of stay (LOS), time to medical fitness for discharge (TMFFD), body mass index (BMI), malnutrition universal screening tool (MUST) and mini-nutritional assessment short-form (MNA-SF) scores, blood urea, C-reactive protein (CRP), albumin, CRP-albumin ratio; and bioelectrical impedance assessment (BIA) measurements (n = 66)...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531394/predictive-factors-of-early-mortality-after-percutaneous-endoscopic-gastrostomy-placement-the-importance-of-c-reactive-protein
#7
Mara Barbosa, Joana Magalhaes, Carla Marinho, Jose Cotter
INTRODUCTION AND AIMS: Percutaneous endoscopic gastrostomy (PEG) is considered one of the preferred routes for long-term enteral feeding. However, early mortality after PEG placement is high. We aimed at analyzing overall and early mortality in patients who underwent PEG insertion and at identifying risk factors of increased mortality after the procedure. METHODS: Retrospective study which included patients who had a PEG insertion at our department between May 2007 and January 2013...
August 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531309/effect-of-antiretroviral-therapy-on-bone-and-renal-health-in-young-adults-infected-with-hiv-in-early-life
#8
Aylin B Unsal, Aviva S Mattingly, Sara E Jones, Julia B Purdy, James C Reynolds, Jeffrey B Kopp, Rohan Hazra, Colleen M Hadigan
Context: HIV antiretroviral (ARV) therapy is associated with renal and bone toxicity, but little is known about the potential cumulative effects in adults exposed to ARVs from birth. Objective: To prospectively evaluate renal and bone health in young adults with lifelong HIV and extensive ARV exposure. Design: Cross-sectional comparison of bone mineral density (BMD by dual-energy X-ray absorptiometry), bone turnover and renal function in young adults infected with HIV in early life (n=65) to matched healthy controls (n=23) and longitudinal evaluation (mean follow-up 4...
May 22, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28531173/a-scoring-system-to-effectively-evaluate-central-nervous-system-tuberculosis-in-patients-with-military-tuberculosis
#9
Yongjiu Xiao, Shuqing Yu, Qingliang Xue, Shan Lang, Junping Sun, Dan Feng, Jianxin Wang
There is currently no convenient way to effectively evaluate whether a miliary tuberculosis patient is complicated with central nervous system (CNS) tuberculosis. We aimed to find such a way by analyzing the clinical data of these patients. Fifty patients with confirmed miliary tuberculosis and 31 patients with confirmed miliary tuberculosis complicated with CNS tuberculosis from 2010 to 2014 were selected. Their general conditions, clinical features and laboratory tests were analyzed. Factors that were significantly different between them were chosen to performed multivariate and univariate logistic regression analyses, and factors with significant P values were used to establish a scoring system...
2017: PloS One
https://www.readbyqxmd.com/read/28530776/factors-affecting-mortality-among-victims-of-electrical-burns
#10
Çağrı Tiryaki, Mustafa Celalettin Haksal, Murat Burç Yazıcıoğlu, Ali Çiftçi, Osman Esen, Hamdi Taner Turgut, Abdullah Yıldırım, Murat Güven
BACKGROUND: The aim of this study was to determine the factors affecting mortality rate among patients with an electrical burn. METHODS: A total of 115 patients admitted to the emergency department and hospitalized in the Burn Treatment Center or Intensive Care Unit (ICU) due to the electrical burn, were included in the study. RESULTS: A total of 115 patients (4 female and 111 male) with a mean age of 32.88±12.87 years were included in the study...
May 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28530565/analysis-of-binding-properties-and-interaction-of-thiabendazole-and-its-metabolite-with-human-serum-albumin-via-multiple-spectroscopic-methods
#11
Qiaomei Sun, Jiawei He, Hongqin Yang, Shanshan Li, Ludan Zhao, Hui Li
Thiabendazole (TBZ), which is oxidized into 5-hydroxythiabendazole (5-OH-TBZ) in vivo, is a commonly used food preservative. Interactions of TBZ and 5-OH-TBZ with human serum albumin (HSA) were comprehensively studied via multiple spectroscopic methods and molecular docking. This study focussed on the mechanistic and structural information on binding of TBZ and 5-OH-TBZ to HSA to evaluate the impact of the food additive on HSA. (1)H NMR spectra of the two ligands showed the binding exists. ITC and fluorescence spectroscopy results revealed that TBZ was a stronger ligand, with a binding constant of 10(5)l/mol and formed a more stable complex with HSA than did 5-OH-TBZ via electrostatic interaction...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530383/diabetes-update-prevention-and-management-of-diabetes-complications
#12
Beth Choby
Macrovascular complications of diabetes include cardiovascular events, whereas common microvascular complications include neuropathy, retinopathy, and diabetic kidney disease. Control of hypertension and dyslipidemia is an important step in minimizing the risk of complications. Blood pressure (BP) levels should be maintained at less than 140 mm Hg systolic and less than 90 mm Hg diastolic. In older adults, medical therapy to reduce BP to less than 130/70 mm Hg is not recommended. In these patients, a systolic BP level less than 130 mm Hg has not been shown to improve atherosclerotic cardiovascular disease (ASCVD) outcomes, and a diastolic BP less than 70 mm Hg is associated with a higher mortality risk...
May 2017: FP Essentials
https://www.readbyqxmd.com/read/28529615/a-novel-blood-tool-of-cancer-prognosis-in-esophageal-squamous-cell-carcinoma-the-fibrinogen-albumin-ratio
#13
Zihui Tan, Man Zhang, Qiang Han, Jing Wen, Kongjia Luo, Peng Lin, Lanjun Zhang, Hong Yang, Jianhua Fu
Background: Coagulation and nutrition play important roles in cancer progression. We aim to investigate the impact of the fibrinogen/albumin ratio(FAR) in esophageal squamous cell carcinoma (ESCC) patients. Methods: We retrospectively analyzed 1135 patients with radical esophagectomy for ESCC from January 2008 to December 2010 in our center. X-tile software was used to determine the optimal cutoff levels for these biomarkers. Results: The optimal cutoff value was 0.08 for the FAR by the X-tile software. The FAR was statistically significantly associated with age(p=0...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28529539/jiangtang-decoction-ameliorate-diabetic-nephropathy-through-the-regulation-of-pi3k-akt-mediated-nf-%C3%AE%C2%BAb-pathways-in-kk-ay-mice
#14
Jin-Ni Hong, Wei-Wei Li, Lin-Lin Wang, Hao Guo, Yong Jiang, Yun-Jia Gao, Peng-Fei Tu, Xue-Mei Wang
BACKGROUND: Jiangtang decoction (JTD) is a China patented drug which contains Euphorbia humifusa Willd, Salvia miltiorrhiza Bunge, Astragalus mongholicus Bunge, Anemarrhena asphodeloides Bunge, and Coptis chinensis Franch. For decades, it has also been used clinically to treat diabetic nephropathy (DN) effectively; however, the associated mechanisms remain unknown. Thus, the present study aimed to examine the protective efficacy of JTD in DN and elucidate the underlying molecular mechanisms...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28529085/variations-in-native-protein-glycation-and-plasma-antioxidants-in-several-birds-of-prey
#15
Tana Ingram, Jessica Zuck, Chad R Borges, Patrick Redig, Karen L Sweazea
Birds are an anomaly among vertebrates as they are remarkably long-lived despite having naturally high blood glucose and metabolic rates. For mammals, hyperglycemia leads to oxidative stress and protein glycation. In contrast, many studies have shown that domestic and wild birds are relatively resistant to these glucose-mediated pathologies. Surprisingly very little research has examined protein glycation in birds of prey, which by nature consume a diet high in protein and fat that promotes gluconeogenesis...
May 18, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28528793/comparison-of-dual-energy-x-ray-absorptiometry-and-bioimpedance-in-assessing-body-composition-and-nutrition-in-peritoneal-dialysis-patients
#16
Velena Popovic, Bo Zerahn, James Goya Heaf
OBJECTIVE: Peritoneal dialysis (PD) patients are characterized by protein malnutrition and muscle wasting. Reliable, easy, and cheap methods for evaluating nutrition are desirable. Three methods are commonly available: dual-energy X-ray absorptiometry (DXA), bioimpedance (BI), and subjective global assessment (SGA).The objective of the study was to compare the previously mentioned methods for assessment of body composition and nutritional status in PD patients. DESIGN: The study is cross-sectional and consisted of 72 PD patients from a single center PD ambulatorium...
May 18, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28528635/relocation-is-the-key-to-successful-correlative-fluorescence-and-scanning-electron-microscopy
#17
Delfine Cheng, Gerald Shami, Marco Morsch, Minh Huynh, Patrick Trimby, Filip Braet
In this chapter the authors report on an automated hardware and software solution enabling swift correlative sample array mapping of fluorescently stained molecules within cells and tissues across length scales. Samples are first observed utilizing wide-field optical and fluorescence microscopy, followed by scanning electron microscopy, using calibration points on a dedicated sample-relocation holder. We investigated HeLa cells in vitro, fluorescently labeled for monosialoganglioside one (GM-1), across both imaging platforms within tens of minutes of initial sample preparation...
2017: Methods in Cell Biology
https://www.readbyqxmd.com/read/28528401/cardiovascular-disease-biomarkers-are-associated-with-declining-renal-function-in-type-2-diabetes
#18
Sara J Jenks, Bryan R Conway, Stela McLachlan, Wei Leng Teoh, Rachel M Williamson, David J Webb, Paul Welsh, Naveed Sattar, Mark W J Strachan, Jackie F Price
AIMS/HYPOTHESIS: We investigated whether biochemical cardiovascular risk factors and/or markers of subclinical cardiovascular disease were associated with the development of reduced renal function in people with type 2 diabetes. METHODS: A cohort of 1066 Scottish men and women aged 60-74 years with type 2 diabetes from the Edinburgh Type 2 Diabetes Study were followed up for a median of 6.7 years. New-onset reduced renal function was defined as two eGFRs <60 ml(-1) min(-1) (1...
May 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28528271/exploring-binding-characteristics-and-the-related-competition-of-different-protein-bound-uremic-toxins
#19
Olivier Deltombe, Henriette de Loor, Griet Glorieux, Annemieke Dhondt, Wim Van Biesen, Björn Meijers, Sunny Eloot
Little is known about potential differences in binding characteristics of protein-bound uremic toxins (PBUTs) in patients with chronic kidney disease (CKD) versus healthy controls. The question arises whether eventual differences are attributed to (i) the elevated levels of competing uremic toxins, and/or (ii) post-translational modifications of albumin. We evaluated the binding characteristics of hippuric acid (HA), indole-3-acetic acid (IAA), indoxyl sulfate (IS), and p-cresylsulfate (pCS) by deriving a binding curve in three distinct conditions: (i) serum from healthy controls (healthy serum), (ii) blank serum from hemodialysis patients (blank HD serum; i...
May 17, 2017: Biochimie
https://www.readbyqxmd.com/read/28528252/investigation-of-the-binding-affinity-in-vitamin-b12-bovine-serum-albumin-system-using-various-spectroscopic-methods
#20
Magdalena Makarska-Bialokoz
The binding affinity between vitamin B12 (VitB12) and bovine serum albumin (BSA) has been investigated in aqueous solution at pH=7.4, employing UV-vis absorption and steady-state, synchronous and three-dimensional fluorescence spectra techniques. Representative effects noted for BSA intrinsic fluorescence resulting from the interactions with VitB12 confirm the formation of π-π stacked non-covalent and non-fluorescent complexes in the system VitB12-BSA. All the determined parameters, the binding, fluorescence quenching and bimolecular quenching rate constants (of the order of 10(4)Lmol(-1), 10(3)Lmol(-1) and 10(11)Lmol(-1)s(-1), respectively), as well as Förster resonance energy transfer parameters validate the mechanism of static quenching...
May 11, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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