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https://www.readbyqxmd.com/read/28098432/a-multi-mitochondrial-anticancer-agent-that-selectively-kills-cancer-cells-and-overcomes-drug-resistance
#1
Yong Bo Peng, Zi Long Zhao, Teng Liu, Guo Jian Xie, Cheng Jin, Tang Gang Deng, Yang Sun, Xiong Li, Xiao Xiao Hu, Xiao Bing Zhang, Mao Ye, Wei Hong Tan
Mitochondria are double-membrane-bound organelles involved mainly in supplying cellular energy, but also play roles in signaling, cell differentiation, and cell death. Mitochondria are implicated in carcinogenesis, and therefore dozens of lethal signal transduction pathways converge on these organelles. Accordingly, mitochondria provide an alternative target for cancer management. In this study, F16, a drug that targets mitochondria, and chlorambucil (CBL), which is indicated for the treatment of selected human neoplastic diseases, were covalently linked, resulting in the synthesis of a multi-mitochondrial anticancer agent, FCBL...
January 18, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28097602/dietary-supplementation-of-chromium-can-alleviate-negative-impacts-of-heat-stress-on-performance-carcass-yield-and-some-blood-hematology-and-chemistry-indices-of-growing-japanese-quail
#2
Mohamed Soliman El-Kholy, Mohamed Mohamed El-Hindawy, Mahmoud Alagawany, Mohamed Ezzat Abd El-Hack, Sabry Abd El-Gawad Abd El-Halim El-Sayed
The main objective of this work was to investigate the impact of dietary chromium supplementation on growth indices, carcass yield, and some hematological and biochemical blood parameters of growing Japanese quails subjected to heat stress. A total of 360 unsexed 2-week-old Japanese quail chicks were used in a 2 × 3 factorial arrangement that had two ambient temperatures (23 ± 2 and 33 ± 2 °C) and three dietary chromium (0.00, 500, and 1000 μg Cr/kg diet as chromium picolinate). For induction of heat stress, the room temperature was set at 33 ± 2 °C from 2 to 6 weeks of age...
January 17, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28097462/thermally-stable-schiff-base-and-its-metal-complexes-molecular-docking-and-protein-binding-studies
#3
Umran Duru Kamaci, Musa Kamaci, Aysegul Peksel
In this paper, interaction of Schiff base and its metal complexes carrying naphthalene ring in the structure with bovine serum albumin (BSA) were investigated using UV-vis absorption, fluorescence spectroscopies and molecular docking methods. The effect on the binding mechanism and properties of these compounds containing metal-free, iron and copper ions were also investigated. The fluorescence spectroscopy results showed that fluorescence intensity of BSA in the presence of different concentration of ligands was decreased through a static quenching mechanism...
January 18, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28096662/synthetic-nanoparticles-of-bovine-serum-albumin-with-entrapped-salicylic-acid
#4
E S Bronze-Uhle, B C Costa, V F Ximenes, P N Lisboa-Filho
Bovine serum albumin (BSA) is highly water soluble and binds drugs or inorganic substances noncovalently for their effective delivery to various affected areas of the body. Due to the well-defined structure of the protein, containing charged amino acids, albumin nanoparticles (NPs) may allow electrostatic adsorption of negatively or positively charged molecules, such that substantial amounts of drug can be incorporated within the particle, due to different albumin-binding sites. During the synthesis procedure, pH changes significantly...
2017: Nanotechnology, Science and Applications
https://www.readbyqxmd.com/read/28095386/in-vitro-evaluation-of-the-cleansing-effect-of-a-monofilament-fiber-debridement-pad-compared-to-gauze-swabs
#5
Cornelia Wiegand, Kirsten Reddersen, Uta-Christina Hipler, Martin Abel, Peter Ruth, Anneke Andriessen
BACKGROUND: Removal of nonvital tissue is an accepted method to eradicate biofilms and to stimulate wound healing. Debridement using a monofilament polyester fiber pad has clinically been shown to be effective as well as pain and trauma free. METHODS: For in vitro determination of the cleansing capacity of this product compared to gauze swabs, a wound debridement model was used with glass plates coated with a bovine serum albumin solution, stained with hematoxylin...
January 18, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28095044/vitamin-d-binding-protein-and-25-hydroxyvitamin-d-levels-emerging-clinical-applications
#6
Navinder K Jassil, Anupa Sharma, Daniel Bikle, Xiangbing Wang
25-hydroxyvitamin D (25(OH)D), the precursor of the active form of vitamin D, is recognized as the optimal indicator of vitamin D status. Vitamin D3 undergoes conversion through a multitude of enzymatic reactions described within the paper and vitamin D levels are dependent on many factors, including the vitamin D binding protein (DBP). The free hormone hypothesis postulates that protein-bound hormones are not biologically available and that unbound hormones are biologically active. The majority of circulating 25(OH)D and 1,25-dihydroxyvitamin D is tightly bound to DBP and albumin, with less than 1% circulating in an unbound form...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28094920/antifouling-thin-film-composite-membranes-by-controlled-architecture-of-zwitterionic-polymer-brush-layer
#7
Caihong Liu, Jongho Lee, Jun Ma, Menachem Elimelech
In this study, we demonstrate a highly antifouling thin-film-composite (TFC) membrane by grafting a zwitterionic polymer brush via atom-transfer radical-polymerization (ATRP), a controlled, environmentally benign chemical process. Initiator molecules for polymerization were immobilized on the membrane surface by bio-inspired catechol chemistry, leading to the grafting of a dense zwitterionic polymer brush layer. Surface characterization revealed that the modified membrane exhibits reduced surface roughness, enhanced hydrophilicity, and lower surface charge...
January 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28094898/polyelectrolyte-oil-core-nanocarriers-for-localized-and-sustained-delivery-of-daunorubicin-to-colon-carcinoma-mc38-cells-the-case-of-polysaccharide-multilayer-film-in-relation-to-peg-ylated-shell
#8
Urszula Bazylińska, Jadwiga Pietkiewicz, Joanna Rossowska, Grzegorz Chodaczek, Andrzej Gamian, Kazimiera A Wilk
The authors examine properties of daunorubicin (DNR)-loaded oil-core multilayer nanocapsules prepared via layer-by-layer approach with different polyelectrolyte (PE) coatings such as a standard one (containing polysodium 4-styrenesulphonate/poly(diallyldimethyl-ammonium) chloride) and a polysaccharide-based shell (dextran/chitosan), in regard to the outer layer of poly-l-glutamic acid (PGA) grafted with polyethylene glycol (PGA-g-PEG). The nanocarriers are obtained on a cationic nanoemulsion template (stabilized by dicephalic-type surfactant, N,N-bis[3,30-(trimethylammonio)propyl]-dodecanamide dimethylsulfate) and layered with the PE shell of different thicknesses resulting in average size of 150 nm in diameter (as shown by dynamic light scattering, scanning electron microscopy and cryogenic-transmission electron microscopy, and atomic force microscopy)...
January 17, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28094532/preclinical-comparison-of-albumin-binding-radiofolates-impact-of-linker-entities-on-the-in-vitro-and-in-vivo-properties
#9
Klaudia Siwowska, Stephanie Haller, Francesca Bortoli, Martina Benešová, Viola Groehn, Peter Bernhardt, Roger Schibli, Cristina Müller
Tumor targeting with folic acid radioconjugates has been proposed as a promising strategy for radionuclide therapy of folate receptor α (FR)-positive cancer. Recently, it was shown that modification of radiofolates with an albumin-binding entity increased the tumor-to-kidney ratios of accumulated radioactivity in mice. The goal of this study was to evaluate the lead compound cm10 and compare it with new albumin-binding folate conjugates. Compound cm12 was designed with a long spacer consisting of a PEG-11 entity, and compound cm13 contained a short alkane chain between the albumin-binding moiety and folic acid...
January 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28091813/prolonged-air-leak-following-lobectomy-can-be-predicted-in-lung-cancer-patients
#10
Satoru Okada, Junichi Shimada, Daishiro Kato, Hiroaki Tsunezuka, Masayoshi Inoue
PURPOSE: The purpose of this study was to identify the factors associated with prolonged air leak (PAL) following pulmonary lobectomy for lung cancer. METHODS: The data of 146 patients who underwent pulmonary lobectomy for lung cancer between August 2010 and July 2015 were retrospectively reviewed. Air leaks were assessed daily by a visual evaluation and were categorized as follows: forced expiratory only (Grade 1), expiratory only (Grade 2), or continuous (Grade 3)...
January 13, 2017: Surgery Today
https://www.readbyqxmd.com/read/28090231/effects-of-ipragliflozin-on-diabetic-nephropathy-and-blood-pressure-in-patients-with-type-2-diabetes-an-open-label-study
#11
Daisuke Ito, Emi Ikuma-Suwa, Kazuyuki Inoue, Kimie Kaneko, Morifumi Yanagisawa, Kouichi Inukai, Mitsuhiko Noda, Akira Shimada
BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors are novel agents used to treat type 2 diabetic patients. We investigated the efficacy of the SGLT2 inhibitor ipragliflozin on diabetic nephropathy in Japanese patients with type 2 diabetes. METHODS: A 50 mg dose of ipragliflozin was administered for 24 weeks to 50 patients with type 2 diabetes who were concomitantly managed with diet and exercise therapy alone or antidiabetic medications other than SGLT2 inhibitors...
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28089783/characterization-of-rat-or-human-hepatocytes-cultured-in-microphysiological-systems-mps-to-identify-hepatotoxicity
#12
Shih-Yu Chang, Jenna L Voellinger, Kirk P Van Ness, Brian Chapron, Rachel M Shaffer, Thomas Neumann, Collin C White, Terrance J Kavanagh, Edward J Kelly, David L Eaton
The liver is the main site for drug and xenobiotics metabolism, including inactivation or bioactivation. In order to improve the predictability of drug safety and efficacy in clinical development, and to facilitate the evaluation of the potential human health effects from exposure to environmental contaminants, there is a critical need to accurately model human organ systems such as the liver in vitro. We are developing a microphysiological system (MPS) based on a new commercial microfluidic platform (Nortis, Inc...
January 12, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28088517/osborne-mendel-rats-simultaneously-develop-cardiac-and-renal-dysfunction-left-atrial-thrombosis-peripheral-artery-occlusion-and-ascending-aortic-dissection
#13
Makoto Asahina, Hideki Matsumoto, Yoshitaka Yasuhara, Noriko Suzuki, Ritsuko Takami, Michiyasu Takeyama, Ryuichi Tozawa
Although chronic kidney disease (CKD) is strongly associated with onsets of cardiovascular disease (CVD), the pathogenic mechanism between these diseases has not been fully understood. To develop and validate new therapeutic strategies for this complication, appropriate experimental models that reflect the complexity of the underlying pathophysiology are needed. The Osborne-Mendel (OM) rat was identified as an atherosclerosis-prone and a premature-death rat strain among 16 inbred rat strains when fed high-cholesterol containing diet...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28086980/inflammation-in-epileptogenesis-after-traumatic-brain-injury
#14
REVIEW
Kyria M Webster, Mujun Sun, Peter Crack, Terence J O'Brien, Sandy R Shultz, Bridgette D Semple
BACKGROUND: Epilepsy is a common and debilitating consequence of traumatic brain injury (TBI). Seizures contribute to progressive neurodegeneration and poor functional and psychosocial outcomes for TBI survivors, and epilepsy after TBI is often resistant to existing anti-epileptic drugs. The development of post-traumatic epilepsy (PTE) occurs in a complex neurobiological environment characterized by ongoing TBI-induced secondary injury processes. Neuroinflammation is an important secondary injury process, though how it contributes to epileptogenesis, and the development of chronic, spontaneous seizure activity, remains poorly understood...
January 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28079174/alleviating-liver-failure-conditions-using-an-integrated-hybrid-cryogel-based-cellular-bioreactor-as-a-bioartificial-liver-support
#15
Apeksha Damania, Mohsin Hassan, Nana Shirakigawa, Hiroshi Mizumoto, Anupam Kumar, Shiv K Sarin, Hiroyuki Ijima, Masamichi Kamihira, Ashok Kumar
Conventionally, some bioartificial liver devices are used with separate plasmapheresis unit to separate out plasma from whole blood and adsorbent column to detoxify plasma before it passes through a hepatocytes-laden bioreactor. We aim to develop a hybrid bioreactor that integrates the separate modules in one compact design improving the efficacy of the cryogel based bioreactor as a bioartificial liver support. A plasma separation membrane and an activated carbon cloth are placed over a HepG2-loaded cryogel scaffold in a three-chambered bioreactor design...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078887/electrospun-regenerated-cellulose-nanofiber-membranes-surface-grafted-with-water-insoluble-poly-hema-or-water-soluble-poly-aas-chains-via-the-atrp-method-for-ultrafiltration-of-water
#16
Zhao Wang, Caitlin Crandall, Vicki L Prautzsch, Rajesh Sahadevan, Todd J Menkhaus, Hao Fong
Electrospun nanofiber membranes (ENMs) have demonstrated promising applications for water purification primarily due to high water flux and low degree of fouling. However, the equivalent/apparent pore sizes of as-electrospun ENMs are in microns/sub-microns; therefore, the ENMs can only be directly utilized for microfiltration applications. To make regenerated cellulose (RC) ENMs for ultrafiltration applications, atom transfer radical polymerization (ATRP) was studied to graft polymer chains onto the surface of RC nanofibers; in specific, the monomers of 2-hydroxyethyl methacrylate (HEMA) and sodium acrylate (AAS) were selected for surface-grafting water-insoluble and water-soluble polymer chains onto RC nanofibers, respectively...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28078416/poly-ethylene-glycol-functionalization-of-monolithic-poly-divinyl-benzene-for-improved-miniaturized-solid-phase-extraction-of-protein-rich-samples
#17
Esme Candish, Aminreza Khodabandeh, Marianne Gaborieau, Thomas Rodemann, Robert A Shellie, Andrew A Gooley, Emily F Hilder
Non-specific protein adsorption on hydrophobic solid phase extraction (SPE) adsorbents can reduce the efficacy of purification. To improve sample clean-up, poly(divinyl benzene) (PDVB) monoliths grafted with hydrophilic polyethylene glycol methacrylate (PEGMA) were developed. Residual vinyl groups (RVGs) of the PDVB were employed as anchor points for PEGMA grafting. Two PEGMA monomers, M n 360 and 950, were compared for graft solutions containing 5-20% monomer. Protein binding was qualitatively screened using fluorescently labeled human serum albumin (HSA) to determine optimal PEGMA concentration...
January 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28076823/guazuma-ulmifolia-bark-synthesized-ag-au-and-ag-au-alloy-nanoparticles-photocatalytic-potential-dna-protein-interactions-anticancer-activity-and-toxicity-against-14-species-of-microbial-pathogens
#18
Viswanathan Karthika, Ayyakannu Arumugam, Kasi Gopinath, Periyannan Kaleeswarran, Marimuthu Govindarajan, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Giovanni Benelli
In the present study, we focused on a quick and green method to fabricate Ag, Au and Ag/Au alloy nanoparticles (NPs) using the bark extract of Guazuma ulmifolia L. Green synthesized metal NPs were characterized using different techniques, including UV-Vis spectroscopy, FT-IR, XRD, AFM and HR-TEM analyses. The production of Ag, Au and Ag/Au alloy NPs was observed monitoring color change from colorless to brown, followed by pink and dark brown, as confirmed by UV-Vis spectroscopy characteristic peaks at 436, 522 and 510nm, respectively...
January 4, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28076328/albumin-to-gamma-glutamyltransferase-ratio-as-a-prognostic-indicator-in-intrahepatic-cholangiocarcinoma-after-curative-resection
#19
Chu-Yu Jing, Yi-Peng Fu, Hu-Jia Shen, Su-Su Zheng, Jia-Jia Lin, Yong Yi, Jin-Long Huang, Xin Xu, Juan Zhang, Jian Zhou, Jia Fan, Zheng-Gang Ren, Shuang-Jian Qiu, Bo-Heng Zhang
The prognosis of intrahepatic cholangiocarcinoma (ICC) remains poor whereas predictive models for survival prediction in ICC patients following curative resection are limited. Herein, we established a novel inflammation-based score derived from preoperative albumin to gamma-glutamyltransferase ratio (AGR) and evaluated its prognostic significance in ICC patients underwent curative resection. Prognostic value of AGR was retrospectively studied in a cohort comprising 206 ICC patients following curative resection...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28073902/state-of-harmonization-of-24-serum-albumin-measurement-procedures-and-implications-for-medical-decisions
#20
Lorin M Bachmann, Min Yu, James C Boyd, David E Bruns, W Greg Miller
BACKGROUND: Measurements of serum and plasma albumin are widely used in medicine, including as indicators of quality of patient care in renal dialysis centers. METHODS: Pools were prepared from residual patient serum (n = 50) and heparin plasma (n = 48) from patients without renal disease, and serum from patients with kidney failure before hemodialysis (n = 53). Albumin was measured in all samples and in ERM-DA470k/IFCC reference material (RM) by 3 immunochemical, 9 bromcresol green (BCG), and 12 bromcresol purple (BCP) methods...
January 10, 2017: Clinical Chemistry
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