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https://www.readbyqxmd.com/read/29447971/a-mechanistic-approach-to-degrade-and-detoxify-dye-based-environmental-pollutants-using-horseradish-peroxidase-assisted-packed-bed-reactor
#1
Tahir Rasheed, Muhammad Bilal, Hafiz M N Iqbal, Hongbo Hu, Wei Wang, Xuehong Zhang
Owing to the ever-increasing environmental and health impacts associated with the discharge of dye-based effluents, effective remediation of industrial waste has become a top priority for the industrialists and environmental fraternity, around the world. In this context, plant-based peroxidases represent a suitable bio-remediating agent for the effective treatment of original dyes or dye-based colored wastewater effluents. In the present study, horseradish peroxidase was entrapped on a polyacrylamide gel and investigated its potential for the degradation and detoxification of an azo dye, methyl orange...
February 12, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29442819/one-step-hydrothermal-synthesis-of-small-tio%C3%A2-porous-nanoparticles-for-efficient-degradation-of-organic-dyes
#2
Jing Zhang, Donghai Wang, Haijiao Zhang
In the work, small TiO2 porous nanoparticles with an average size of 60 nm have been prepared by a simple, eco-friendly, and one-step hydrothermal method. The TiO2 products are achieved by only using tetrabutyl titanate (TBOT), tetrapropylammonium hydroxide (TPAOH), and water as the starting materials. Various techniques such as SEM, TEM, HRTEM, XRD, Raman, and BET are used to characterize the surface morphology and structural features of products. The growth parameters including reaction time, titanium source and temperature of thermal treatment are systematically investigated...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442810/one-pot-facile-synthesis-of-pt-nanoparticles-using-cultural-filtrate-of-microgravity-simulated-grown-p-chrysogenum-and-their-activity-on-bacteria-and-cancer-cells
#3
Sivakumar Allur Subramaniyan, Sunirmal Sheet, Mohanraj Vinothkannan, Dong Jin Yoo, Yang Soo Lee, Shah Ahmed Belal, Kwan Seob Shim
Platinum nanoparticles (Pt NPs) was synthesized via a facile and cost competitive ont-pot green mediated synthesis using cell free cultural filtrate (microgravity simulated grown Penicillium chrysogenum) as a reducing agent. The toxicity effect of synthesized Pt NPs toward myoblast C2C12 carcinoma cells was then investigated. The particle size analyzer (DLS) and transmission electron microscopy (TEM) results demonstrates that both NG-Pt NPs and MG-Pt NPS are spherical in shape with an average diameter of 15 nm and 8...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442722/anisotropic-snowman-like-silver-nanoparticles-synthesized-by-caesalpinia-sappan-extract-and-in-vitro-antibacterial-activity
#4
You Jeong Lee, Youmie Park
Anisotropic snowman-like silver nanoparticles (AgNPs) were synthesized using the extract of Caesalpinia sappan heartwood as a reducing agent in the presence of cetyltrimethylammonium bromide. Two surface plasmon resonance bands of the orange solution were observed at 446 nm and 539 nm in UV-visible spectra. High-resolution X-ray diffraction analysis confirmed the face-centered cubic structure of the AgNPs. High-resolution transmission electron microscopy images clearly revealed snowman-like AgNPs with an average size of 34...
June 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29433680/cyclocommunol-induces-apoptosis-in-human-oral-squamous-cell-carcinoma-partially-through-a-mcl-1-dependent-mechanism
#5
Jing-Ru Weng, Li-Yuan Bai, Horng-Huey Ko, Yi-Tung Tsai
BACKGROUND: Crude extract of breadfruit has been reported to have antitumor activity against various cancer cell lines with unknown mechanism. PURPOSE: This study aims to investigate the proapoptotic effect of cyclocommunol (CYC), a prenylflavonoid from breadfruit, in two oral squamous cell carcinoma (OSCC) cell lines, SCC2095 and Ca922. METHODS: The antiproliferative effects of CYC were assessed by MTT assays and PI/annexin V analysis. SCC2095 cells were transiently transfected with Mcl-1 plasmid in overexpression experiment...
January 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29424320/reserpine-induces-apoptosis-and-cell-cycle-arrest-in-hormone-independent-prostate-cancer-cells-through-mitochondrial-membrane-potential-failure
#6
Manjula Devi Ramamoorthy, Ashok Kumar, Mahesh Ayyau, Kannan Narayanan Dhiraviam
Reserpine, an indole alkaloid commonly used for hypertension, is found in the roots of Rauwolfia serpentina. Although the root extract has been used for the treatment of cancer, the molecular mechanism of its anti-cancer activity on hormonal independent prostate cancer remains elusive. Therefore, we evaluated the cytotoxicity of reserpine and other indole alkaloids, yohimbine and ajmaline on prostate cancer cells (PC3) using MTT assay. We investigated the mechanism of apoptosis using a combination of techniques including acridine orange/ethidium bromide staining, high content imaging of Annexin V-FITC staining, flow cytometric quantification of the mitochondrial membrane potential and reactive oxygen species (ROS) and cell cycle analysis...
February 9, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29411268/a-phase-1-pharmacokinetic-study-of-cysteamine-bitartrate-delayed-release-capsules-following-oral-administration-with-orange-juice-water-or-omeprazole-in-cystinosis
#7
Danielle Armas, Robert J Holt, Nils F Confer, Gregg C Checani, Mohammad Obaidi, Yuli Xie, Meg Brannagan
INTRODUCTION: Cystinosis is a rare, metabolic, autosomal recessive, genetic lysosomal storage disorder characterized by an accumulation of cystine in various organs and tissues. Cysteamine bitartrate (CB) is a cystine-depleting aminothiol agent approved in the United States and Europe in immediate-release and delayed-release (DR) formulations for the treatment of nephropathic cystinosis in children and adults. It is recommended that CBDR be administered with fruit juice (except grapefruit juice) for maximum absorption...
February 6, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29407322/induction-of-regulatory-cd4-cells-and-prolongation-of-fully-major-histocompatibility-complex-mismatched-murine-cardiac-allograft-by-shigyakusan
#8
E Yin, M Uchiyama, M Niimi
Shigyakusan (also known as Tsumura Japan [TJ]-35) is composed of peony, bitter orange, licorice, and Bupleuri radix is used for cholecystitis and gastritis as an anti-inflammatory agent. We investigated the effect of TJ-35 on alloimmune response in a murine heart transplantation model. CBA mice that underwent transplantation of a C57BL/6 (B6) heart were assigned to four groups: no treatment, TJ-35-exposed, each component-exposed, or each component missing-exposed. The four groups above each received oral administration of TJ-35, each component, or TJ-35 with each component missing from the day of transplantation until 7 days, respectively...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29405781/-simple-methods-to-derive-primary-malignant-glioma-cell-lines-and-assay-of-cellular-damage-for-preclinical-studies
#9
Kalyani Thakur, Sai Shyam, Jennifer George, Shobha A G, K V L Narasinga Rao, Vijay Kumar Kalia
Primary malignant glioma cell lines are being used for initial screening of anticancer agents. We utilized a simple mechanical disaggregation method for deriving cell lines from tumor tissues; and a Coverslip Culture-Acridine Orange Staining method to study cellular damage. Cell lines could be grown for up to three passages within three weeks after surgery. Cell proliferation, total cellular damage, and MTT assay were studied as parameters of cytotoxic response. Frequencies of damaged cells varied in different cell lines; and increased after cytotoxic treatments under clinically relevant conditions...
February 6, 2018: Cancer Investigation
https://www.readbyqxmd.com/read/29367993/the-structures-water-stabilities-and-photoluminescence-properties-of-two-types-of-iodocuprate-i-based-hybrids
#10
Guang-Ning Liu, Ruo-Yu Zhao, Hong Xu, Zi-Han Wang, Qi-Sheng Liu, Malik Zeeshan Shahid, Jin-Ling Miao, Guozhu Chen, Cuncheng Li
Although great progress has been made in hybrid iodocuprates(i) as lighting phosphors, the effects of aromatic and aliphatic structure directing agents (SDAs) on their water stability, structure and photoluminescence (PL) properties are still not clear. Herein, aromatic N-heterocyclic 1,2-di(4-pyridyl)ethylene (dpe), aliphatic N-heterocyclic 1,8-diazabicyclo[5.4.0]undec-7-ene (dbu) and N-aminoethylpiperazine (app) were selected to be SDAs to construct two types of hybrid iodocuprates(i) via a facile in situ approach...
January 25, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29352900/evaluation-of-nisin-loaded-chitosan-monomethyl-fumaric-acid-nanoparticles-as-a-direct-food-additive
#11
Imran Khan, Charles Nkufi Tango, Sumaira Miskeen, Deog-Hwan Oh
Nisin-loaded chitosan-monomethyl fumaric acid (CM-N) nanoparticles were evaluated as a novel, direct food additive. Chitosan (CS) was modified with monomethyl fumaric acid (MFA) in the presence of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). CS-loaded nisin (CS-N) and CM-N nanoparticles were produced through ionic interactions between the positive amino group of CS and CS-MFA and negative tripolyphosphate ions. The resultant materials were characterized by TNBS assay, X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, and zeta potential analysis...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29337486/improving-risk-stratification-among-veterans-diagnosed-with-prostate-cancer-impact-of-the-17-gene-prostate-score-assay
#12
Julie A Lynch, Megan P Rothney, Raoul R Salup, Cesar E Ercole, Sharad C Mathur, David A Duchene, Joseph W Basler, Javier Hernandez, Michael A Liss, Michael P Porter, Jonathan L Wright, Michael C Risk, Mark Garzotto, Olga Efimova, Laurie Barrett, Brygida Berse, Michael J Kemeter, Phillip G Febbo, Atreya Dash
BACKGROUND: Active surveillance (AS) has been widely implemented within Veterans Affairs' medical centers (VAMCs) as a standard of care for low-risk prostate cancer (PCa). Patient characteristics such as age, race, and Agent Orange (AO) exposure may influence advisability of AS in veterans. The 17-gene assay may improve risk stratification and management selection. OBJECTIVES: To compare management strategies for PCa at 6 VAMCs before and after introduction of the Oncotype DX Genomic Prostate Score (GPS) assay...
January 2018: American Journal of Managed Care
https://www.readbyqxmd.com/read/29317029/fluorescent-sensing-of-ascorbic-acid-based-on-iodine-induced-oxidative-etching-and-aggregation-of-lysozyme-templated-silver-nanoclusters
#13
Qinchao Mo, Fang Liu, Jing Gao, Meiping Zhao, Na Shao
In this work, we developed a sensitive and highly selective fluorescent approach for the detection of ascorbic acid (AA) by taking advantage of the oxidative etching effect of iodine (I2) on the lysozyme-stabilized silver nanoclusters (dLys-AgNCs) with fluorescence quenching. I2 could be produced from the redox reaction between iodate (IO3-) and AA, and thus the fluorescence intensity of dLys-AgNCs was turned off significantly in the coexistence of IO3- and AA. The fluorescence quenching of dLys-AgNCs had a good linear relationship with AA concentration, which allowed the detection of AA in the range from 0...
March 20, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29310028/design-synthesis-biological-assessment-and-molecular-docking-studies-of-new-2-aminoimidazole-quinoxaline-hybrids-as-potential-anticancer-agents
#14
Zahra Ghanbarimasir, Ahmadreza Bekhradnia, Katayoun Morteza-Semnani, Alireza Rafiei, Nima Razzaghi-Asl, Mostafa Kardan
In a search for novel antiproliferative agents, a series of quinoxaline derivatives containing 2-aminoimidazole (8a-8x) were designed and synthesized. The structures of synthesized compounds were confirmed by IR, 1H NMR, 13C NMR, Mass Spectroscopy and analyzed using HSQC, COSY, ROESY, HMBC techniques. The anticancer activity of all derivatives were evaluated for colon cancer and breast cancer cell lines by the MTT assay and acridine orange/ethidium bromide double staining method. The anti-cancer effect in human colon cancer (HCT-116) and breast cancer (MCF-7) cell lines exhibited that compounds 8a, 8s, 8t, 8w, 8x appeared as potent antiproliferative agents and especially inhibited the human colon cancer cell proliferation with percentage of inhibition by over 50%...
December 29, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29291056/niclosamide-loaded-biodegradable-chitosan-nanocargoes-an-in-vitro-study-for-potential-application-in-cancer-therapy
#15
Saba Naqvi, Shanid Mohiyuddin, P Gopinath
Chitosan nanoparticles can advance the pharmacological and therapeutic properties of chemotherapeutic agents by controlling release rates and targeted delivery process, which eliminates the limitations of conventional anti-cancer therapies and they are also safe as well as cost-effective. The aim of present study is to explore the anti-tumour effect of niclosamide in lung and breast cancer cell lines using biocompatible and biodegradable carrier where nanoparticles loaded with hydrophobic drug (niclosamide) were synthesized, characterized and applied as a stable anti-cancer agent...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29286229/synergistic-effect-of-forbesione-from-garcinia-hanburyi-in-combination-with-5-fluorouracil-on-cholangiocarcinoma
#16
Parichart Boueroy, Chariya Hahnvajanawong, Thidarut Boonmars, Sunitta Saensa-ard, Wareeporn Wattanawongdon, Charuphan Kongsanthia, Kanin Salao, Suwin Wongwajana, Natthinee Anantachoke, Vichai Reutrakul
Background: Chemotherapy for advanced cholangiocarcinoma (CCA) is largely ineffective; thus innovative combinations of chemotherapeutic agents and natural compounds represent a promising strategy. This study aimed to investigate the synergistic effects of forbesione combined with 5-fluorouracil (5-FU) in hamster cholangiocarcinoma (Ham-1) cells both in vitro and in vivo. The anti-tumor effects of 5-FU combined with forbesione in vitro were determined using the Sulforhodamine B (SRB) assay and the effects in vivo were assessed in transplanted Ham-1 allograph models...
December 29, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29277637/synthesis-and-characterisation-of-arsenic-nanoparticles-and-its-interaction-with-dna-and-cytotoxic-potential-on-breast-cancer-cells
#17
A Subastri, V Arun, Preeti Sharma, E Preedia Babu, A Suyavaran, S Nithyananthan, Ghedeir M Alshammari, B Aristatile, V Dharuman, C Thirunavukkarasu
Therapeutic applications of arsenic trioxide (ATO) are limited due to their severe adverse effects. However, nanoparticles of ATO might possess inimitable biologic effects based on their structure and size which differ from their parent molecules. Based on this conception, AsNPs were synthesized from ATO and comparatively analysed for their interaction mechanism with DNA using spectroscopic & electrochemical techniques. Finally, anti-proliferative activity was assessed against different breast cancer cells (MDA-MB-231 & MCF-7) and normal non-cancerous cells (HEK-293)...
December 22, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29276655/polypoidal-choroidal-vasculopathy
#18
Joon-Bom Kim, Rajinder S Nirwan, Ajay E Kuriyan
Purpose of Review: The goal of this paper is to review the recent literature of polypoidal choroidal vasculopathy (PCV) and provide an update on the epidemiology, pathophysiology, clinical findings, and management. Recent Findings: Although indocyanine-green angiography (ICGA) is still the gold standard for diagnosis of PCV, the use of en face optical coherence tomography (OCT) and OCT angiography are useful tools in the diagnosis of PCV. Studies demonstrate superior treatment outcomes with combination photodynamic therapy (PDT) and anti-vascular endothelial growth factor (VEGF) therapy...
June 2017: Current Ophthalmology Reports
https://www.readbyqxmd.com/read/29258165/control-of-scaphoideus-titanus-with-natural-products-in-organic-vineyards
#19
Federico Tacoli, Nicola Mori, Alberto Pozzebon, Elena Cargnus, Sarah Da Vià, Pietro Zandigiacomo, Carlo Duso, Francesco Pavan
The leafhopper Scaphoideus titanus is the vector of 'Candidatus Phytoplasma vitis', the causal agent of Flavescence dorée (FD) a key disease for European viticulture. In organic vineyards, the control of S. titanus relies mostly on the use of pyrethrins that have suboptimal efficacy. During 2016, three field trials were conducted to evaluate the efficacy of kaolin, orange oil, insecticidal soap and spinosad against S. titanus nymphs, in comparison with pyrethrins. The activity of kaolin was evaluated also in the laboratory...
December 16, 2017: Insects
https://www.readbyqxmd.com/read/29248677/influence-of-natural-and-synthetic-vitamin-c-ascorbic-acid-on-primary-and-secondary-metabolites-and-associated-metabolism-in-quinoa-chenopodium-quinoa-willd-plants-under-water-deficit-regimes
#20
Aniqa Aziz, Nudrat Aisha Akram, Muhammad Ashraf
Phytoextracts are being widely used these days as a source of bioactive compounds for mitigating the harmful effects of abiotic stresses including drought stress. In this study, it was assessed how far foliar applied pure synthetic ascorbic acid (AsA) or natural sweet orange juice (OJ) enriched with AsA could mitigate the drought stress induced adverse effects on growth and some key metabolic processes in quinoa (Chenopodium quinoa Willd.; cultivar V9) plants. Two weeks old quinoa seedlings were subjected to varying irrigation regimes as control [100% field capacity (FC)] and drought stress (60% FC, 40% FC and 20% FC)...
December 5, 2017: Plant Physiology and Biochemistry: PPB
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