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Lee SWL, Paoletti C, Campisi M, Osaki T, Adriani G, Kamm RD, Mattu C, Chiono V. MicroRNA delivery through nanoparticles. J Control Release 2019; 313:80-95. [PMID: 31622695 PMCID: PMC6900258 DOI: 10.1016/j.jconrel.2019.10.007] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are attracting a growing interest in the scientific community due to their central role in the etiology of major diseases. On the other hand, nanoparticle carriers offer unprecedented opportunities for cell specific controlled delivery of miRNAs for therapeutic purposes. This review critically discusses the use of nanoparticles for the delivery of miRNA-based therapeutics in the treatment of cancer and neurodegenerative disorders and for tissue regeneration. A fresh perspective is presented on the design and characterization of nanocarriers to accelerate translation from basic research to clinical application of miRNA-nanoparticles. Main challenges in the engineering of miRNA-loaded nanoparticles are discussed, and key application examples are highlighted to underline their therapeutic potential for effective and personalized medicine.
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Affiliation(s)
- Sharon Wei Ling Lee
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy; Singapore-MIT Alliance for Research & Technology (SMART), BioSystems and Micromechanics (BioSyM), Singapore, Singapore(3); Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore(3); Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research, Singapore, Singapore(3)
| | - Camilla Paoletti
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
| | - Marco Campisi
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
| | - Tatsuya Osaki
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA; Institute of Industrial Science, The University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan(3)
| | - Giulia Adriani
- Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research, Singapore, Singapore(3); Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Roger D Kamm
- Singapore-MIT Alliance for Research & Technology (SMART), BioSystems and Micromechanics (BioSyM), Singapore, Singapore(3); Department of Mechanical Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 500 Technology Square, Room NE47-321, Cambridge, MA, 02139, USA
| | - Clara Mattu
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy.
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy
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Elsayed MMA. Microstructural characterization of carrier-based dry powder inhalation excipients: Insights and guidance. Int J Pharm 2019; 568:118482. [PMID: 31260786 DOI: 10.1016/j.ijpharm.2019.118482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/26/2019] [Accepted: 06/27/2019] [Indexed: 01/21/2023]
Abstract
The growing interest in development of dry powder inhalation (DPI) products raises a need for development of standard testing methods and specifications for DPI excipients. The pharmaceutical industry, meanwhile, yet lacks compendial guidance on this topic. Despite of the complexity of interactions taking place in DPI systems and the large number and variety of interplaying factors, understanding of key determinants of performance (critical quality attributes) of DPI excipients have considerably developed over the past years. In light of the current knowledge in this area, this article provides technical guidance and insights on testing and quality control of carrier-based-DPI excipients. These excipients are, typically, blends of coarse, carrier particles and fine, performance-modulating particles. The article explores techniques used for measurement of key microstructural attributes, namely the particle size distribution, the porosity and the particle surface roughness, the particle shape, rheological properties, and the permeability, of these excipients. The technical relevance of each measurement to the functionality of the excipients is critically discussed. In this regard, caveats concerning use of some measurements and data analysis procedures are raised. The guidance lends itself for compendial adoption.
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García A, Priotti J, Codina AV, Vasconi MD, Quiroga AD, Hinrichsen LI, Leonardi D, Lamas MC. Synthesis and characterization of a new cyclodextrin derivative with improved properties to design oral dosage forms. Drug Deliv Transl Res 2019; 9:273-83. [PMID: 30264285 DOI: 10.1007/s13346-018-0591-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This work aimed to synthesize a novel β-cyclodextrin derivative, itaconyl-β-cyclodextrin to evaluate whether albendazole inclusion complexes with the new β-cyclodextrin derivative-improved albendazole dissolution efficiency and its anthelminthic activity. The new derivative was thoroughly evaluated and characterized, and an average degree of substitution of 1.4 per cyclodextrin molecule was observed. Albendazole:itaconyl-β-cyclodextrin complexes were prepared by spray drying procedures and investigated using phase solubility diagrams, dissolution efficiency, X-ray diffraction, differential scanning calorimetry, Fourier transform infrared, scanning electronic microscopy, mass spectrometry, and nuclear magnetic resonance spectroscopy. Phase solubility diagrams and mass spectrometry studies showed that the inclusion complex was formed in an equimolar ratio. Stability constant values were 602 M-1 in water, and 149 M-1 in HCl 0.1 N. Nuclear magnetic resonance experiments of the inclusion complex showed correlation signals between the aromatic and propyl protons of albendazole and the itaconyl-β-cyclodextrin inner protons. The studies indicated solid structure changes of albendazole included in itaconyl-β-cyclodextrin. The maximum drug release was reached at 15 min, and the inclusion complex solubility was 88-fold higher than that of the pure drug. The in vitro anthelmintic activity assay showed that the complex was significantly more effective than pure albendazole.
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Kumar M, Sabbarwal S, Mishra PK, Upadhyay SN. Thermal degradation kinetics of sugarcane leaves (Saccharum officinarum L) using thermo-gravimetric and differential scanning calorimetric studies. Bioresour Technol 2019; 279:262-270. [PMID: 30735936 DOI: 10.1016/j.biortech.2019.01.137] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 05/24/2023]
Abstract
Pyrolysis of sugarcane (Saccharum officinarum L) leaves (SCL) has been investigated using DTA/TGA and DSC techniques. Proximate and ultimate analyses and calorific value measurement have been carried out using standard protocols. The sugar cane leaves contain 44% cellulose, 22% hemicellulose and 17% lignin. The pyrolysis have been carried out at six heating rates varying from 5 to 40 °C/min. Analysis of the pyrolysis results has been carried using iso-conversional model free methods as well as multiple linear regression method. For the fractional conversion range of 0.05-0.95, the average apparent activation energy values evaluated from iso-conversional methods have ranged from 214.9 to 239.6 kJ/mol where as in the case of multiple linear regression analysis it has ranged from 25.06 to 57.23 kJ/mol. The multi-step reaction mechanism has been investigated using the Criado method. The results of this study are useful for the design of large scale biomass thermal conversion process.
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Affiliation(s)
- Mohit Kumar
- Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India
| | - Shivesh Sabbarwal
- Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India
| | - P K Mishra
- Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India
| | - S N Upadhyay
- Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India.
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Tovar AK, Godínez LA, Espejel F, Ramírez-Zamora RM, Robles I. Optimization of the integral valorization process for orange peel waste using a design of experiments approach: Production of high-quality pectin and activated carbon. Waste Manag 2019; 85:202-213. [PMID: 30803574 DOI: 10.1016/j.wasman.2018.12.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/10/2018] [Accepted: 12/21/2018] [Indexed: 05/03/2023]
Abstract
The aim of this study was to optimize the integral valorization of orange peel waste by obtaining activated carbon after a process of pectin recovery in recycling of orange peel by transformation to value-added products of pectin extraction and activated carbon preparation. The study was supported by statistical analysis, and the significant factors and optimal conditions were obtained from the statistical analysis. Using a representative sample of orange peel waste, a yield of 29.37% pectin was recovered at the optimal operating conditions (phosphoric acid as the extraction agent, 95 °C as the impregnation temperature and a 2-hour extraction time). Activated carbon (AC) was prepared from the remaining solid residue. The conditions that improve the resulting material quality were H3PO4 [0.6 M] used as the activating agent, an impregnation temperature of 95 °C, a carbonization temperature of 400 °C and 1 h of carbonization time. The obtained AC showed a sorption capacity of 2342.91 mg g-1, a value higher than that reported for commercial activated carbon. Using a model dye chemical, the sorption kinetics and thermodynamics of AC were found to follow a pseudo-second-order rate and the Freundlich models, respectively. Using the process conditions obtained in this study, it was possible to optimize the yield and also obtain good-quality products from valorization of orange peel.
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Affiliation(s)
- Ana Karen Tovar
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S. C., Parque Tecnológico Querétaro, 76703 Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Luis A Godínez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S. C., Parque Tecnológico Querétaro, 76703 Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Fabricio Espejel
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S. C., Parque Tecnológico Querétaro, 76703 Sanfandila, Pedro Escobedo, Querétaro, Mexico
| | - Rosa-María Ramírez-Zamora
- Universidad Nacional Autónoma de México (UNAM), Instituto de Ingeniería, Coordinación de Ingeniería Ambiental, 04510 Ciudad de México, Mexico
| | - Irma Robles
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S. C., Parque Tecnológico Querétaro, 76703 Sanfandila, Pedro Escobedo, Querétaro, Mexico.
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Ndong Ba A, Cazier F, Verdin A, Garcon G, Cabral M, Courcot L, Diouf A, Courcot D, Gualtieri M, Fall M. Physico-chemical characterization and in vitro inflammatory and oxidative potency of atmospheric particles collected in Dakar city's (Senegal). Environ Pollut 2019; 245:568-581. [PMID: 30469127 DOI: 10.1016/j.envpol.2018.11.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/31/2018] [Accepted: 11/08/2018] [Indexed: 06/09/2023]
Abstract
Exposure to atmospheric pollutants has been recognized as a major risk factor of respiratory and cardiovascular diseases. Fine particles (PM2.5) and a coarser fraction (PM>2.5) sampled at an urban site in Dakar (HLM), characterized by high road traffic emissions, were compared with particles sampled at a rural area, Toubab Dialaw located about 40 km from Dakar. The physicochemical characteristics of samples revealed that PMs differ for their physical (surface area) and chemical properties (in terms of CHN, metals, ions, paraffins, VOCs and PAHs) that were 65-75% higher in urban samples. Moreover the fine PMs contain higher amounts of anthropogenic related pollutants than the PM>2.5 one. These differences are sustained by the ratios reported for the analysed PAHs which suggest as predominant primary emission sources vehicle exhausts at urban site and biomass combustion at the rural site. The inflammatory response and the oxidative damages were evaluated in BEAS-2B cells by the quantification of 4 selected inflammatory cytokines (TNF-α, IL-1β, IL-6, IL-8) and of total carbonylated proteins and the oxidative DNA adduct 8-OHdG after 8 or 24 h exposure. In accordance with the different sources and different physical and chemical properties, the inflammatory response and the oxidative damages were found higher in bronchial cells exposed to urban PMs. These data confirm the importance, also for West African countries, to evaluate the correlation between PM physico-chemical properties and potential biological impacts.
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Affiliation(s)
- Awa Ndong Ba
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, SFR Condorcet FR CNRS 3417, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, Dunkerque, France; Laboratoire de Toxicologie et d'Hydrologie, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop, Dakar, Senegal
| | - Fabrice Cazier
- Centre Commun de Mesures, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, Dunkerque, France
| | - Anthony Verdin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, SFR Condorcet FR CNRS 3417, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, Dunkerque, France
| | - Guillaume Garcon
- CHU Lille, Institut Pasteur de Lille, EA4483-IMPacts de l'Environnement Chimique sur la Santé Humaine (IMPECS), Univ. Lille, Lille, France
| | - Mathilde Cabral
- Laboratoire de Toxicologie et d'Hydrologie, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop, Dakar, Senegal
| | - Lucie Courcot
- Laboratoire d'Oceanologie et de Geosciences, F-62930, CNRS UMR8187, LOG, Université du Littoral Côte d'Opale, Wimereux, France
| | - Amadou Diouf
- Laboratoire de Toxicologie et d'Hydrologie, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop, Dakar, Senegal
| | - Dominique Courcot
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, SFR Condorcet FR CNRS 3417, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, Dunkerque, France
| | - Maurizio Gualtieri
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) EA 4492, SFR Condorcet FR CNRS 3417, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, Dunkerque, France.
| | - Mamadou Fall
- Laboratoire de Toxicologie et d'Hydrologie, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop, Dakar, Senegal
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Yang X, Dai J, Guo D, Zhao S, Huang Y, Chen X, Huang Q. Changes in the properties of Radix Aconiti Lateralis Preparata (Fuzi, processed aconite roots) starch during processing. J Food Sci Technol 2019; 56:24-29. [PMID: 30728543 DOI: 10.1007/s13197-018-3430-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/06/2018] [Accepted: 09/11/2018] [Indexed: 11/28/2022]
Abstract
Radix Aconiti Lateralis Preparata (Fuzi) is an important, toxic traditional Chinese medicine that has been widely used in clinical practice. Due to the toxicity of its raw materials, it needs to be processed before application. The changes in the physicochemical properties of Fuzi starch during processing were evaluated by scanning electron microscopy, X-ray diffraction and differential scanning calorimetry. The results showed the following: morphological properties changed from spherical to irregular and polygonal particles, while the particle size increased significantly; amylose content and solubility decreased significantly; swelling power and water-binding capacity increased significantly; the X-ray diffraction peak disappeared, and the crystallinity decreased; and the gelatinization temperature and enthalpy decreased significantly. The properties of Fuzi starch were similar to those of pregelatinized starch. These results indicated that Fuzi starch undergone repeated processes of gelatinization and aging, which destroyed the original crystal structure of the starch.
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Affiliation(s)
- Xiao Yang
- 1School of Food and Bioengineering, Xihua University, Chengdu, 610039 People's Republic of China
| | - Juan Dai
- 3School of Laboratory Medicine, Chengdu Medical College, Chengdu, People's Republic of China
| | - Dengfeng Guo
- 1School of Food and Bioengineering, Xihua University, Chengdu, 610039 People's Republic of China
| | - Sujuan Zhao
- 1School of Food and Bioengineering, Xihua University, Chengdu, 610039 People's Republic of China
| | - Yukun Huang
- 1School of Food and Bioengineering, Xihua University, Chengdu, 610039 People's Republic of China
| | - Xianggui Chen
- 1School of Food and Bioengineering, Xihua University, Chengdu, 610039 People's Republic of China
| | - Qingwan Huang
- 2Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075 People's Republic of China
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Cilurzo F, Critello CD, Paolino D, Fiorillo AS, Fresta M, De Franciscis S, Celia C. Polydocanol foam stabilized by liposomes: Supramolecular nanoconstructs for sclerotherapy. Colloids Surf B Biointerfaces 2018; 175:469-476. [PMID: 30572155 DOI: 10.1016/j.colsurfb.2018.12.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 02/07/2023]
Abstract
Vascular pathology of the lower limbs is a widespread disease affecting the quality of life for more than 30% of the adult world population. Polydocanol foam is presently the main therapeutic option for treating varicosities, inflammation, and chronic disease which affect the vascular endothelium and blood vessels. Unfortunately, the commercial product contains detergents and surfactants which can provoke several side effects and decrease the efficacy of therapy. In an attempt to overcome these drawbacks, polydocanol foam was mixed with different liposomes before use. The resulting mixture was stable and generated supramolecular nanoconstructs, which may prevent the interaction of the components of the commercial polydocanol foam with the vascular endothelium. This effect depends on the presence of liposomes, which can induce polydocanol foam to change its structure from micelles to complex nanostructures, thus improving its stability. In this attempt, the physicochemical features of the resulting nanoconstructs were tested through dynamic- and multiple light scattering analyses, rheological studies and gel permeation chromatography, while the stability was tested in biological fluids. Our preliminary results showed that the nanoconstructs have some potential as therapeutic agents in sclerotherapy.
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Affiliation(s)
- Felisa Cilurzo
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Chieti, Italy
| | | | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | | | - Massimo Fresta
- Department of Health Sciences, University of Catanzaro "Magna Græcia", Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | - Stefano De Franciscis
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Catanzaro, Italy
| | - Christian Celia
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Chieti, Italy; Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA.
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Satyam R, Janahi EM, Bhardwaj T, Somvanshi P, Haque S, Najm MZ. In silico identification of immunodominant B-cell and T-cell epitopes of non-structural proteins of Usutu Virus. Microb Pathog 2018; 125:129-143. [PMID: 30217517 DOI: 10.1016/j.micpath.2018.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 12/12/2022]
Abstract
Usutu Virus (USUV; flavivirus) is a re-emerging pathogen invading the territories of European countries, Asia, and Africa. It is a mosquito-borne zoonotic virus with a bi-directional transmission route from animal to human and vice versa, and causes neurological disorders such as meningoencephalitis in bats, Homo sapiens, birds and horses. Due to limited availability of information about USUV and its deleterious effects on neural cells causing neurologic impairments, it becomes imperative to study this virus in detail to equip ourselves with a solution beforehand. The current study aims to identify immunodominant peptides that could be exploited in future for designing global peptide vaccine for combating the infections caused by USUV. In this study, an immunoinformatics approach was applied to evaluate the immunogenicity of 7 non-structural proteins and determined 64 continuous B-cell epitopes, numerous probable discontinuous B-cell epitopes, 64 MHC Class-I binders, 126 MHC class-II binders and 52 promiscuous binders with a maximum population coverage of 98.55%(MHC Class-I binder ofYP_164815.1 NS4a) and 81.81% (MHC Class-II binders of YP_164812.1 NS2a, YP_164813.1 NS2b, YP_164814.1 NS3, YP_164817.1 NS4b, YP_164818.1 NS5). Further, studies involving experimental validation of these predicted epitopes is warranted to ensure the potential of B-cells and T-cells stimulation for their effective use as vaccine candidates, and as diagnostic agents against USUV.
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Affiliation(s)
- Rohit Satyam
- Department of Biotechnology, Noida Institute of Engineering and Technology, 19, Knowledge Park-II, Greater Noida, 201308, Uttar Pradesh, India
| | | | - Tulika Bhardwaj
- Department of Biotechnology, TERI School of Advanced Studies, 10, Institutional Area, Vasant Kunj, New Delhi, 110070, India
| | - Pallavi Somvanshi
- Department of Biotechnology, TERI School of Advanced Studies, 10, Institutional Area, Vasant Kunj, New Delhi, 110070, India.
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, University of Jazan, Jazan, 45142, Saudi Arabia.
| | - Mohammad Zeeshan Najm
- Department of Biotechnology, Noida Institute of Engineering and Technology, 19, Knowledge Park-II, Greater Noida, 201308, Uttar Pradesh, India
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Cabranes M, Leyva AG, Babay PA. Removal of Cs + from aqueous solutions by perlite. Environ Sci Pollut Res Int 2018; 25:21982-21992. [PMID: 29797199 DOI: 10.1007/s11356-018-2283-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
Perlite is an abundant mineral that requires minimum processing before use either as raw or expanded perlite, resulting in a low-cost, natural porous material. The application of materials for the removal of radioactive cesium from liquid effluents and contaminated waters is currently of great interest. Perlite has been evaluated in the last years for the sorption of a variety of metals, but it had not been investigated before for removal of Cs+ from contaminated waters. The present work examines the use of perlites from a deposit in Salta, Argentina, for removal of Cs+ from aqueous solutions. The mineral was characterized by means of powder X-ray diffraction, thermal analysis, analysis of specific area, and scanning electron microscopy. The effect of solution pH, presence of concomitant ions, contact time, Cs+ initial concentration, perlite dose, and basic or acidic treatment of the sorbent were studied by batch experiments. Removal increased at high pHs and after treatment with NaOH. Sorption of Cs+ by perlite presented a rapid rise in the first 80 min of contact. The selected material (from Pava mine) yielded removal efficiencies of 84 and 89% before and after treatment with NaOH, respectively, for a dose of 30 g perlite/L and initial cation concentration of 10 mg/L. Our results demonstrate that perlite is a material capable of removing Cs+ from aqueous solutions, even when applied at low doses. These findings are relevant in the context of removal of radioactive Cs isotopes from nuclear effluents and in case of contamination of environmental waters.
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Affiliation(s)
- Malena Cabranes
- National Commission of Atomic Energy, Av. General Paz 1499, 1650, San Martín, Buenos Aires, Argentina
- National University of General San Martín, M. Irigoyen 1300, 1650, San Martin, Buenos Aires, Argentina
- National Council of Scientific and Technical Research, Godoy Cruz 2290, CABA, Buenos Aires, Argentina
| | - Ana Gabriela Leyva
- National Commission of Atomic Energy, Av. General Paz 1499, 1650, San Martín, Buenos Aires, Argentina
- National University of General San Martín, M. Irigoyen 1300, 1650, San Martin, Buenos Aires, Argentina
| | - Paola Alejandra Babay
- National Commission of Atomic Energy, Av. General Paz 1499, 1650, San Martín, Buenos Aires, Argentina.
- National University of General San Martín, M. Irigoyen 1300, 1650, San Martin, Buenos Aires, Argentina.
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Orzechowska S, Wróbel A, Kozieł M, Łasocha W, Rokita E. Physicochemical characterization of mineral deposits in human ligamenta flava. J Bone Miner Metab 2018; 36:314-322. [PMID: 28389931 DOI: 10.1007/s00774-017-0835-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 03/14/2017] [Indexed: 10/19/2022]
Abstract
The aim of our study was the detailed characterization of calcium deposits in ligamenta flava. The use of microcomputed tomography allowed extending the routine medical investigations to characterize mineral grains in the microscopic scale. A possible connection between spinal stenosis and ligament mineralization was investigated. The studies were carried out on 24 surgically removed ligamentum flavum samples divided into control and stenosis groups. Physicochemical characterization of the inorganic material was performed using X-ray fluorescence, X-ray diffraction, and Fourier transform infrared spectroscopy. The minerals were present in 14 of 24 ligament samples, both in stenosis and control groups. The inorganic substance constitutes on average ~0.1% of the sample volume. The minerals are scattered in the soft tissue matrix without any regular pattern. It was confirmed that minerals possess an internal structure and consist of the organic material and small inorganic grains mixture. The physicochemical analyses show that the predominant crystalline phase was hydroxyapatite (HAP). In the stenosis group calcium pyrophosphate dehydrate (CPPD) was identified. Both structures were never present in a single sample. Two different crystal structures suggest two independent processes of mineralization. The formation of CPPD may be treated as a more intense process since CPPD minerals are characterized by bigger values of the structural parameters and higher density than HAP deposits. The formation of HAP minerals is a soft tissue degeneration process that begins, in some cases, at early age or may not occur at all. Various density and volume of mineral grains indicate that the mineralization process does not occur in a constant environment and proceeds with various speeds. The formation of minerals in ligamenta flava is not directly associated with diagnosed spinal canal stenosis.
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Affiliation(s)
- Sylwia Orzechowska
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland.
| | - Andrzej Wróbel
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Marcin Kozieł
- Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060, Krakow, Poland
| | - Wiesław Łasocha
- Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060, Krakow, Poland
| | - Eugeniusz Rokita
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
- Department of Biophysics, Jagiellonian University Medical College, św. Łazarza 16, 31-530, Kraków, Poland
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Mahjoob R, Mohammadi Nafchi A, Omidbakhsh Amiri E, Farmani J. An investigation on the physicochemical characterization of interesterified blends of fully hydrogenated palm olein and soybean oil. Food Sci Biotechnol 2018; 27:343-352. [PMID: 30263757 PMCID: PMC6049649 DOI: 10.1007/s10068-017-0262-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/11/2017] [Accepted: 11/13/2017] [Indexed: 10/18/2022] Open
Abstract
In this study, the effect of interesterification (using sodium methoxide) on physicochemical characteristics of fully hydrogenated palm olein (FHPO)/soybean oil blends (10 ratios) was investigated. Interesterification changed free fatty acid content, decreased oil stability index, solid fat content (SFC) and slip melting point (SMP), and does not affected the peroxide value. With the increase of FHPO ratio, oil stability index, SFC and SMP increased in both the interesterified and non-interesterified blends. Fats with higher FHPO ratio had narrower plastic range, as well. Compared to the initial blends, interesterified fats had wider plastic ranges at lower temperatures. Both the non-interesterified and interesterified blends showed monotectic behavior. The Gompertz function could describe SFC curve (as a function of temperature, saturated fatty acid (SFA) content or both) and SMP (as a function of SFA) of the interesterified fats with high R2 and low mean absolute error.
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Affiliation(s)
- Raheleh Mahjoob
- Department of Food Science and Technology, Faculty of Agriculture, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Abdorreza Mohammadi Nafchi
- Department of Food Science and Technology, Faculty of Agriculture, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Elahe Omidbakhsh Amiri
- Department of Food Science and Technology, Faculty of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, PO Box 578, Sari, Iran
| | - Jamshid Farmani
- Department of Food Science and Technology, Faculty of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, PO Box 578, Sari, Iran
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Tian C, Asghar S, Xu Y, Chen Z, Zhang M, Huang L, Ye J, Ping Q, Xiao Y. The effect of the molecular weight of hyaluronic acid on the physicochemical characterization of hyaluronic acid-curcumin conjugates and in vitro evaluation in glioma cells. Colloids Surf B Biointerfaces 2018; 165:45-55. [PMID: 29453085 DOI: 10.1016/j.colsurfb.2018.02.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 12/22/2022]
Abstract
In this study, a redox-sensitive glioma-targeting micelle system was designed to deliver curcumin (CUR) by conjugating it to hyaluronic acid (HA-s-s-CUR, HSC) via disulfide linkage. The effect of the molecular weight of HA on the physicochemical characteristics of HSC conjugates and their in vitro effects in glioma cells were also explored. These conjugates formed nano-scale micelles (209-926 nm) independently in aqueous solution. The micelles greatly increased the solubility of CUR and improved its stability, which is crucial for harnessing the therapeutic potential of this active molecule. The redox sensitivities of different HSC micelles were measured by using a dynamic light scattering method and in vitro release assay, which showed that the low (50 kDa) and medium molecular weight (200 kDa and 500 kD) HA-based conjugates were sensitive to GSH, whereas higher molecular weights (1000 kDa and 2000 kDa) did not show redox-sensitivity. Increased cytotoxicity and uptake of low and medium molecular weight-modified HSC conjugates by the glioma cells further confirmed that the sensitive micelles are more effective for intracellular drug delivery compared to the high molecular weight-modified HSC conjugates or the plain CUR. In summary, the molecular weight of HA affects the physicochemical attributes of HSC conjugates. Only HSC micelles made with HA molecules less than 500 kDa exhibit redox sensitivity.
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Anacleto SDS, Borges MMC, de Oliveira HL, Vicente AR, de Figueiredo EC, de Oliveira MAL, Borges BJP, de Oliveira MA, Borges WDS, Borges KB. Evaluation of physicochemical properties as supporting information on quality control of raw materials and veterinary pharmaceutical formulations. J Pharm Anal 2018; 8:168-175. [PMID: 29922485 PMCID: PMC6004627 DOI: 10.1016/j.jpha.2018.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/05/2018] [Accepted: 01/09/2018] [Indexed: 11/25/2022] Open
Abstract
This study aimed to show that the physicochemical proprieties obtained by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), and scanning electronic microscopy (SEM) can be useful tools for evaluating the quality of active pharmaceutical ingredients (APIs) and pharmaceutical products. In addition, a simple, sensitive, and efficient method employing HPLC-DAD was developed for simultaneous determination of lidocaine (LID), ciprofloxacin (CFX) and enrofloxacin (EFX) in raw materials and in veterinary pharmaceutical formulations. Compounds were separated using a Gemini C18 (250 mm × 4.6 mm, 5 µm) Phenomenex® column, at a temperature of 25 °C, with a mobile phase containing 10 mM of phosphoric acid (pH 3.29): acetonitrile (85.7:14.3, v/v) and a flow rate of 1.5 mL/min. Physicochemical characterization by TG, FTIR, and SEM of raw materials of LID, CFX, and EFX provided information useful for the evaluation, differentiation, and qualification of raw materials. Finally, the HPLC method was proved to be useful for evaluation of raw material and finished products, besides satisfying the need for an analytical method that allows simultaneous determination of EFX, CFX, and LID, which can also be extended to other matrices and applications. FTIR, TGA, and SEM are useful tools for the evaluation of the quality of APIs. A RP-HPLC method was developed and validated for the determination of LID, CFX, EFX. The proposed RP-HPLC method showed precise and accurate results in quality control. This method can be applied to the analysis of veterinary pharmaceutical products.
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Affiliation(s)
- Sara da Silva Anacleto
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Marcella Matos Cordeiro Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Hanna Leijoto de Oliveira
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Andressa Reis Vicente
- Departamento de Química, Universidade Federal do Espírito Santo, Avenida Fernando Ferrari, 514, Goiabeiras, 29075-910 Vitória, Espírito Santo, Brazil
| | - Eduardo Costa de Figueiredo
- Laboratório de Análise de Toxicantes e Fármacos, Faculdade de Ciências Farmacêuticas, Universidade Federal de Alfenas, Rua Gabriel Monteiro da Silva 700, Centro, 37130-000 Alfenas, Minas Gerais, Brazil
| | - Marcone Augusto Leal de Oliveira
- Departamento de Química, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n, 36036-330 Juiz de Fora, Minas Gerais, Brazil
| | - Bárbara Juliana Pinheiro Borges
- Centro de Ciências da Saúde, Universidade Federal do Espírito Santo, Avenida Marechal Campos, 1468, Maruípe, 29.043-900 Vitóri, Espírito Santo, Brazil
| | - Marcelo Antonio de Oliveira
- Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo, Br 101 Norte, Km 67, São Mateus, Espírito Santo, Brazil
| | - Warley de Souza Borges
- Departamento de Química, Universidade Federal do Espírito Santo, Avenida Fernando Ferrari, 514, Goiabeiras, 29075-910 Vitória, Espírito Santo, Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Universidade Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
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Celia C, Scala A, Stancanelli R, Surdo E, Paolino D, Grattoni A, Micale N, Crupi V, Majolino D, Fresta M, Tommasini S, Venuti V, Ventura CA. Physicochemical properties of inclusion complexes of highly soluble β-cyclodextrins with highly hydrophobic testosterone propionate. Int J Pharm 2017; 534:316-324. [PMID: 29042336 DOI: 10.1016/j.ijpharm.2017.10.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/05/2017] [Accepted: 10/09/2017] [Indexed: 01/05/2023]
Abstract
Hydroxypropyl-β-cyclodextrin (HP-β-CyD) and sulfobutyl ether-β-cyclodextrin (SBE-β-CyD) were used to generate hydrophilic complexes of the poorly water-soluble drug testosterone propionate (TP). The inclusion complexes were obtained by freeze-drying, and then analyzed at both liquid and solid states. Phase solubility studies, performed according to the type-AL solubility diagrams of TP in presence of both CyDs, suggested the formation of water-soluble complexes at 1:1 molar ratio. These results were confirmed by continuous variation method (Job's plot). Both CyDs increased water-solubility of TP 100-fold as compared to the native drug. The host-guest arrangement of CyD complexes in a water solution was further investigated by one- and two-dimensional NMR spectroscopy, highlighting the insertion of the tetracyclic ring of TP into the CyD cavity, and the interaction of the pending ester chain of drug with the primary hydroxyl groups of CyDs at the narrow end of the toroid structure. In solid phase, FTIR-ATR spectroscopy showed that the CO stretching mode of the TP vibrational spectrum changed if the complex between the drug and CyDs occurred. This change is temperature-dependent, and its evolution, accounted for by deconvolution procedures, provided the thermodynamic parameters explaining the mechanisms involved in the formation of inclusion complexes.
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Affiliation(s)
- Christian Celia
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Via dei Vestini 31, I-66100 Chieti, Italy; Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX 77030, USA
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Rosanna Stancanelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Emanuela Surdo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Græcia", Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Building of BioSciences, V.le Europa, Germaneto, I-88100 Catanzaro, (CZ), Italy
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX 77030, USA
| | - Nicola Micale
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Vincenza Crupi
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Domenico Majolino
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Massimo Fresta
- IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Building of BioSciences, V.le Europa, Germaneto, I-88100 Catanzaro, (CZ), Italy; Department of Health Sciences, University of Catanzaro "Magna Græcia", Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy
| | - Silvana Tommasini
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy
| | - Valentina Venuti
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy.
| | - Cinzia Anna Ventura
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, I-98166 Messina, Italy.
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Cheikhyoussef N, Kandawa-Schulz M, Böck R, de Koning C, Cheikhyoussef A, Hussein AA. Characterization of Acanthosicyos horridus and Citrullus lanatus seed oils: two melon seed oils from Namibia used in food and cosmetics applications. 3 Biotech 2017; 7:297. [PMID: 28868224 DOI: 10.1007/s13205-017-0922-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/19/2017] [Indexed: 11/30/2022] Open
Abstract
The physicochemical characteristics, fatty acid, tocopherol, stigmasterol, β-sitosterol, and 1H NMR profiles of Citrullus lanatus and Acanthosicyos horridus melon seed oils were determined and compared among different extraction methods (cold pressing, traditional, and Soxhlet). The oil content was 40.2 ± 3.45 and 37.8 ± 7.26% for C. lanatus and A. horridus, respectively. Significant differences (p < 0.05) were observed among the different extraction methods in the characteristics studied. Physicochemical characteristics of the melon seed oils were saponification value, 180.48-189.86 mg KOH/g oil; iodine value, 108.27-118.62 g I2/100 g oil; acid value, 0.643-1.63 mg KOH/g oil; peroxide value; 1.69-2.98 mequiv/kg oil; specific gravity, 0.901-0.922; and refractive indices, 1.4676-1.4726. The dominant tocopherol was γ-tocopherol with total tocopherol in the range 27.61-74.39 mg/100 g. The dominant fatty acid was linoleic acid in the range 52.57-56.96%. The favorable oil yield, physicochemical characteristics, tocopherol, and fatty acid composition have the potential to replace or improve major commercial vegetable oils and to be used for various applications in the food industry and nutritive medicines.
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Affiliation(s)
- Natascha Cheikhyoussef
- Department of Chemistry and Biochemistry, University of Namibia, Windhoek, Namibia
- Ministry of Higher Education, Training and Innovation, Windhoek, Namibia
| | | | - Ronnie Böck
- Department of Biological Sciences, University of Namibia, Windhoek, Namibia
| | - Charles de Koning
- School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa
| | - Ahmad Cheikhyoussef
- Science and Technology Division, Multidisciplinary Research Centre, University of Namibia, Windhoek, Namibia
| | - Ahmed A Hussein
- Department of Chemistry, Cape Peninsula University of Technology, Bellville Campus, Cape Town, South Africa
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Amin HH, Meghani NM, Park C, Nguyen VH, Tran TTD, Tran PHL, Lee BJ. Fattigation-platform nanoparticles using apo-transferrin stearic acid as a core for receptor-oriented cancer targeting. Colloids Surf B Biointerfaces 2017; 159:571-579. [PMID: 28854413 DOI: 10.1016/j.colsurfb.2017.08.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 08/05/2017] [Accepted: 08/07/2017] [Indexed: 12/13/2022]
Abstract
A major hurdle in cancer treatment is the precise targeting of drugs to the cancer site. As many cancer cells overexpress the transferrin receptor (TfR), the transferrin (Tf)-TfR interaction is widely exploited to target cancer cells. In this study, novel amphiphilic apo-Tf stearic acid (TfS) conjugates were prepared and characterized by Fourier transform infrared (FTIR) spectroscopy, matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry, and trinitrobenzenesulfonic acid (TNBS) assay. The prepared TfS conjugates were readily self-assembled in water to form nanoparticles (NPs), consisting of TfS as a core of NPs, whose sizes and zeta potentials were determined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and a particle size analyzer. Hydrophilic water-soluble doxorubicin (DOX) was chosen as a model drug. DOX-loaded TfS NPs (NP+DOX), prepared by the adsorption of DOX on the NP surface via the incubation method, were analyzed for their cell targeting and killing efficiencies in TfR-overexpressing A549 and HCT116 cell lines by MTT assay, confocal microscopy, and fluorescence assisted cell sorting (flow cytometry). The data showed that NP+DOX exhibited improved cancer cell targeting and killing properties compared to that reported for free DOX. Further, the cytotoxic efficiency of NP+DOX was comparable to that of PEGylated liposomal product, Doxil®, while its cellular uptake was higher than that of Doxil®. Thus, this novel receptor-based TfS NP drug delivery system has great potential to target TfR-overexpressing cancer cells without off-target effects.
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Affiliation(s)
- Hardik H Amin
- Bioavailability Control Laboratory, College of Pharmacy and Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Nilesh M Meghani
- Bioavailability Control Laboratory, College of Pharmacy and Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Chulhun Park
- Bioavailability Control Laboratory, College of Pharmacy and Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Van Hong Nguyen
- Bioavailability Control Laboratory, College of Pharmacy and Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Thao Truong-Dinh Tran
- Pharmaceutical Engineering Laboratory, Biomedical Engineering Department, International University, Vietnam National University, Ho Chi Minh City, 70000, Viet Nam
| | - Phuong Ha-Lien Tran
- Deakin University, Geelong Australia, School of Medicine and Centre for Molecular and Medical Research
| | - Beom-Jin Lee
- Bioavailability Control Laboratory, College of Pharmacy and Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
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Lankoff A, Brzoska K, Czarnocka J, Kowalska M, Lisowska H, Mruk R, Øvrevik J, Wegierek-Ciuk A, Zuberek M, Kruszewski M. A comparative analysis of in vitro toxicity of diesel exhaust particles from combustion of 1st- and 2nd-generation biodiesel fuels in relation to their physicochemical properties-the FuelHealth project. Environ Sci Pollut Res Int 2017; 24:19357-19374. [PMID: 28674953 PMCID: PMC5556143 DOI: 10.1007/s11356-017-9561-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/14/2017] [Indexed: 05/05/2023]
Abstract
Biodiesels represent more carbon-neutral fuels and are introduced at an increasing extent to reduce emission of greenhouse gases. However, the potential impact of different types and blend concentrations of biodiesel on the toxicity of diesel engine emissions are still relatively scarce and to some extent contradictory. The objective of the present work was to compare the toxicity of diesel exhaust particles (DEP) from combustion of two 1st-generation fuels: 7% fatty acid methyl esters (FAME; B7) and 20% FAME (B20) and a 2nd-generation 20% FAME/HVO (synthetic hydrocarbon biofuel (SHB)) fuel. Our findings indicate that particulate emissions of each type of biodiesel fuel induce cytotoxic effects in BEAS-2B and A549 cells, manifested as cell death (apoptosis or necrosis), decreased protein concentrations, intracellular ROS production, as well as increased expression of antioxidant genes and genes coding for DNA damage-response proteins. The different biodiesel blend percentages and biodiesel feedstocks led to marked differences in chemical composition of the emitted DEP. The different DEPs also displayed statistically significant differences in cytotoxicity in A549 and BEAS-2B cells, but the magnitude of these variations was limited. Overall, it seems that increasing biodiesel blend concentrations from the current 7 to 20% FAME, or substituting 1st-generation FAME biodiesel with 2nd-generation HVO biodiesel (at least below 20% blends), affects the in vitro toxicity of the emitted DEP to some extent, but the biological significance of this may be moderate.
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Affiliation(s)
- Anna Lankoff
- Department of Radiobiology and Immunology, Institute of Biology, Jan Kochanowski University, 15 Swietokrzyska Str., 25-406, Kielce, Poland.
- Center for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195, Warsaw, Poland.
| | - Kamil Brzoska
- Center for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195, Warsaw, Poland
| | - Joanna Czarnocka
- Automotive Industry Institute, 55 Jagiellońska Str., 03-301, Warsaw, Poland
| | - Magdalena Kowalska
- Department of Radiobiology and Immunology, Institute of Biology, Jan Kochanowski University, 15 Swietokrzyska Str., 25-406, Kielce, Poland
| | - Halina Lisowska
- Department of Radiobiology and Immunology, Institute of Biology, Jan Kochanowski University, 15 Swietokrzyska Str., 25-406, Kielce, Poland
| | - Remigiusz Mruk
- Faculty of Production Engineering, Warsaw University of Life Sciences, 166 Nowoursynowska Str., 02-787, Warsaw, Poland
| | - Johan Øvrevik
- Division of Environmental Medicine Norwegian Institute of Public Health, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403, Oslo, Norway
| | - Aneta Wegierek-Ciuk
- Department of Radiobiology and Immunology, Institute of Biology, Jan Kochanowski University, 15 Swietokrzyska Str., 25-406, Kielce, Poland
| | - Mariusz Zuberek
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, 141/143 Pomorska St., 90-236, Lodz, Poland
| | - Marcin Kruszewski
- Center for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195, Warsaw, Poland
- Independent Laboratory of Molecular Biology, Institute of Rural Health, Jaczewskiego 2, 20-090, Lublin, Poland
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Abdelmalek BE, Sila A, Haddar A, Bougatef A, Ayadi MA. β-Chitin and chitosan from squid gladius: Biological activities of chitosan and its application as clarifying agent for apple juice. Int J Biol Macromol 2017; 104:953-962. [PMID: 28668613 DOI: 10.1016/j.ijbiomac.2017.06.107] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/26/2017] [Accepted: 06/27/2017] [Indexed: 11/17/2022]
Abstract
Chitin is the second most abundant polysaccharide in biomass after cellulose and the term chitosan usually refers to a family of polymers obtained after chitin deacetylation. The aim of this work was the preparation and the characterization of chitin and chitosan from the gladius (pen) of the European squid (Loligo vulgaris). A high level of deproteinization (more than 80%) was recorded using Alcalase® with an enzyme/protein ratio of 10U/mg. The demineralization of the gladius was completely achieved within 8h at room temperature in HCl. 13C NMR, FTIR, and XRD diffractograms of prepared chitin and chitosan were taken and then degree of deacetylation of chitosan was calculated using 13C CP/MAS-NMR Spectroscopic. Further, in vitro antioxidant capacity of chitosan was evaluated on 1,1-diphenyl-2-picrylhydrazyl method (IC50=3.2mgmL-1) and the β-carotene bleaching assay (IC50=3.3mgmL-1). Antimicrobial activity was also investigated and assays indicated that prepared chitosan exhibited marked inhibitory activity against all microbial strains tested. Additionally, chitosan was tested such as clarifying agent for apple juice and showed powerful clarification capability, without affecting nutritional value. Furthermore, the results suggested that prepared chitosan could be used as alternative additive in pharmaceutical preparations and food industry.
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Affiliation(s)
- Baha Eddine Abdelmalek
- Laboratoire d'Amélioration des Plantes et Valorisation des Agroressources, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia; Laboratoire Valorisation, Analyse et Sécurité des Aliments, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia
| | - Assaâd Sila
- Laboratoire d'Amélioration des Plantes et Valorisation des Agroressources, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia
| | - Anissa Haddar
- Laboratoire d'Amélioration des Plantes et Valorisation des Agroressources, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia
| | - Ali Bougatef
- Laboratoire d'Amélioration des Plantes et Valorisation des Agroressources, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia.
| | - Mohamed Ali Ayadi
- Laboratoire Valorisation, Analyse et Sécurité des Aliments, National School of Engineering of Sfax (ENIS), Sfax University, Sfax 3038, Tunisia
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Kanwate BW, Kudre TG. Effect of various acids on physicochemical and functional characteristics of gelatin from swim bladder of rohu ( Labeo rohita). J Food Sci Technol 2017; 54:2540-2550. [PMID: 28740312 DOI: 10.1007/s13197-017-2699-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/08/2017] [Accepted: 05/12/2017] [Indexed: 10/19/2022]
Abstract
Influence of various acids (acetic acid, phosphoric acid, and propionic acid) at different concentrations (0.05, 0.1, and 0.2 M) on the extraction yield, physicochemical and functional properties of gelatin from Labeo rohita swim bladder were investigated. Highest gelatin yield (44.22%, dry weight basis) was obtained in a sample prepared by without acid pretreatment (GWA) of swim bladder as compared to acid pretreatment counterparts. Amongst the acid pretreatments, propionic acid (GPrA) showed the highest gelatin yield, followed by acetic acid (GAA) and phosphoric acid (GPA) at all concentrations used, respectively. Moreover, with increased concentrations of all acids, the decrease in gelatin yield was observed for all the acids. GWA showed higher protein and hydroxyproline content than that of acid counterparts (P < 0.05). Amino acid analysis of gelatins showed glycine as the major amino acid in all gelatins followed by proline, glutamic acid and alanine, respectively. GWA showed α (α1 and α2) and β-chains as the predominant components with low molecular weight peptides. However, GPrA, GAA, and GPA had α1 and α2 dominant constituents. FTIR spectra of gelatins revealed that the loss of the triple-helix was found in GPA, GAA, and GPrA, compared to GWA. Among gelatin samples, GWA showed the highest solubility at all pH tested followed by GPrA, GPA, and GAA respectively. Furthermore, GWA exhibited higher emulsifying, foaming and gelling properties as compared to GPrA, GPA, and GAA, respectively. Therefore, the acid pretreatment of swim bladder had a negative impact on the extraction yield, physicochemical and functional properties of gelatin from rohu swim bladder.
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Affiliation(s)
- Balaji Wamanrao Kanwate
- Academy of Scientific and Innovative Research, Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru, Karnataka 570020 India
| | - Tanaji G Kudre
- Academy of Scientific and Innovative Research, Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru, Karnataka 570020 India
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Wang J, Liu W, Chen Z, Chen H. Physicochemical characterization of the oolong tea polysaccharides with high molecular weight and their synergistic effects in combination with polyphenols on hepatocellular carcinoma. Biomed Pharmacother 2017; 90:160-170. [PMID: 28355590 DOI: 10.1016/j.biopha.2017.03.059] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/16/2017] [Accepted: 03/21/2017] [Indexed: 12/23/2022] Open
Abstract
This study was to investigate the synergistic effects of polysaccharides with the molecular weight more than 80kDa (OTPS1) and polyphenols (OTP) isolated from oolong tea on hepatocellular carcinoma (HCC) in vitro and in vivo. The physicochemical properties of OTPS fractions were characterized. The synergistic effects of OTPS1 and OTP were evaluated based on the combination index (CI). Results showed that the highest uronic acid contents (32.96%) and viscosity (239.56mLg-1), multicavity structure of OTPS1 were contributed to the synergistic effects with OTP (52.17% content of epigallocatechin-3-gallate (EGCG)). OTPS1 and OTP showed the strongest synergism ability on SMMC7721 cells (CI<0.2). Co-administrated with OTPS1 and OTP exhibited the synergistic effects on the tumor proliferation and growth with the CI values of 0.34 and 0.39, respectively. Antioxidative and immune levels of the mice were obviously increased after combination administration. These results suggested that OTPS1 in combination with OTP might be functional supplements for the treatment of HCC.
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Affiliation(s)
- Jingya Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Wei Liu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Zhongqin Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, PR China
| | - Haixia Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, PR China.
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Yang Y, Chen ZW, Hurlburt BK, Li GL, Zhang YX, Fei DX, Shen HW, Cao MJ, Liu GM. Identification of triosephosphate isomerase as a novel allergen in Octopus fangsiao. Mol Immunol 2017; 85:35-46. [PMID: 28208072 DOI: 10.1016/j.molimm.2017.02.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/21/2017] [Accepted: 02/06/2017] [Indexed: 11/19/2022]
Abstract
Octopus is an important mollusk in human dietary for its nutritional value, however it also causes allergic reactions in humans. Major allergens from octopus have been identified, while the knowledge of novel allergens remains poor. In the present study, a novel allergen with molecular weight of 28kDa protein was purified from octopus (Octopus fangsiao) and identified as triosephosphate isomerase (TIM) by mass spectrometry. TIM aggregated beyond 45°C, and its IgE-binding activity was affected under extreme pH conditions due to the altered secondary structure. In simulated gastric fluid digestion, TIM can be degraded into small fragments, while retaining over 80% of the IgE-binding activity. The full-length cDNA of O. fangsiao TIM (1140bp) was cloned, which encodes 247 amino acid residues, and the entire recombinant TIM was successfully expressed in Escherichia coli BL21, which showed similar immunoreactivity to the native TIM. Different intensity of cross-reactivity among TIM from related species revealed the complexity of its epitopes. Eight linear epitopes of TIM were predicted following bioinformatic analysis. Furthermore, a conformational epitope (A71G74S69D75T73F72V67) was confirmed by the phage display technology. The results revealed the physicochemical and immunological characteristics of TIM, which is significant in the development of hyposensitivity food and allergy diagnosis.
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Affiliation(s)
- Yang Yang
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Zhong-Wei Chen
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Barry K Hurlburt
- U.S. Department of Agriculture, Agriculture Research Service, Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA, 70124, USA
| | - Gui-Ling Li
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Yong-Xia Zhang
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Dan-Xia Fei
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Hai-Wang Shen
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen Key Laboratory of Marine Functional Food, Jimei University, 43 Yindou Road, Xiamen, Fujian, 361021, China.
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Landkocz Y, Ledoux F, André V, Cazier F, Genevray P, Dewaele D, Martin PJ, Lepers C, Verdin A, Courcot L, Boushina S, Sichel F, Gualtieri M, Shirali P, Courcot D, Billet S. Fine and ultrafine atmospheric particulate matter at a multi-influenced urban site: Physicochemical characterization, mutagenicity and cytotoxicity. Environ Pollut 2017; 221:130-140. [PMID: 27914859 DOI: 10.1016/j.envpol.2016.11.054] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
Particulate Matter (PM) air pollution is one of the major concerns for environment and health. Understanding the heterogeneity and complexity of fine and ultrafine PM is a fundamental issue notably for the assessment of PM toxicological effects. The aim of this study was to evaluate mutagenicity and cytotoxicity of a multi-influenced urban site PM, with or without the ultrafine fraction. For this purpose, PM2.5-0.3 (PM with aerodynamic diameter ranging from 0.3 to 2.5 μm) and PM2.5 were collected in Dunkerque, a French coastal industrial city and were extensively characterized for their physico-chemical properties, including inorganic and organic species. In order to identify the possible sources of atmospheric pollution, specific criteria like Carbon Preference Index (CPI) and PAH characteristic ratios were investigated. Mutagenicity assays using Ames test with TA98, TA102 and YG1041 Salmonella strains with or without S9 activation were performed on native PM sample and PM organic extracts and water-soluble fractions. BEAS-2B cell viability and cell proliferation were evaluated measuring lactate dehydrogenase release and mitochondrial dehydrogenase activity after exposure to PM and their extracts. Several contributing sources were identified in PM: soil resuspension, marine emissions including sea-salt or shipping, road traffic and industrial activities, mainly related to steelmaking or petro-chemistry. Mutagenicity of PM was evidenced, especially for PM2.5, including ultrafine fraction, in relation to PAHs content and possibly nitro-aromatics compounds. PM induced cytotoxic effects at relatively high doses, while alteration of proliferation with low PM doses could be related to underlying mechanisms such as genotoxicity.
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Affiliation(s)
- Yann Landkocz
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Frédéric Ledoux
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France.
| | - Véronique André
- Univ. Caen-Normandie, Aliments, Bioprocédés, Toxicologie, Environnements, EA 4651, Centre François Baclesse, F-14032, Caen, France
| | - Fabrice Cazier
- Univ. Littoral Côte d'Opale, CCM - Centre Commun de Mesures, F-59140, Dunkerque, France
| | - Paul Genevray
- Univ. Littoral Côte d'Opale, CCM - Centre Commun de Mesures, F-59140, Dunkerque, France
| | - Dorothée Dewaele
- Univ. Littoral Côte d'Opale, CCM - Centre Commun de Mesures, F-59140, Dunkerque, France
| | - Perrine J Martin
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Capucine Lepers
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Anthony Verdin
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Lucie Courcot
- Univ. Littoral Côte d'Opale, CNRS UMR8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930, Wimereux, France
| | - Saâd Boushina
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - François Sichel
- Univ. Caen-Normandie, Aliments, Bioprocédés, Toxicologie, Environnements, EA 4651, Centre François Baclesse, F-14032, Caen, France
| | - Maurizio Gualtieri
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Pirouz Shirali
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Dominique Courcot
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
| | - Sylvain Billet
- Univ. Littoral Côte d'Opale, EA 4492 - UCEIV - Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140, Dunkerque, France
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Mahboobian MM, Seyfoddin A, Rupenthal ID, Aboofazeli R, Foroutan SM. Formulation Development and Evaluation of the Therapeutic Efficacy of Brinzolamide Containing Nanoemulsions. Iran J Pharm Res 2017; 16:847-857. [PMID: 29201076 PMCID: PMC5610741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Brinzolamide (BZ) is an intraocular pressure reducing agent with low bioavailability. The purpose of the present study was to overcome this issue by development of BZ containing nanoemulsions (NEs) as an ocular drug delivery system with desirable therapeutic efficacy. Brinzolamide NEs were prepared by the spontaneous emulsification method. Based on initial release studies, twelve formulations with the slowest release characteristics were subjected to further physicochemical investigations such as particle size, polydispersity index, pH, refractive index, osmolality and viscosity. The therapeutic efficacy of these formulations was assessed by measuring the intraocular pressure after instillation of the prepared NEs in normotensive albino rabbit eyes. Nanoemulsions with suitable physicochemical properties exhibited high formulation stability under different conditions. more over biological evaluations indicated that using lower drug concentrations in NE formulations (0.4%) had a similar or even better pharmacodynamic effect compared to the commercial suspension with a higher drug concentration (1%). Our findings suggest that NEs could be effectively used as carriers for enhancing the bioavailability of topically applied ophthalmic drugs.
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Affiliation(s)
- Mohammad Mehdi Mahboobian
- Department of Pharmaceutics, School of Pharmacy & Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ali Seyfoddin
- School of Applied Sciences, Auckland University of Technology, New Zealand.
| | - Ilva D. Rupenthal
- Buchanan Ocular Therapeutics Unit, Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand.
| | - Reza Aboofazeli
- Department of Pharmaceutics, School of Pharmacy & Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Seyed Mohsen Foroutan
- Department of Pharmaceutics, School of Pharmacy & Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. ,Corresponding author: E-mail:
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Chen Z, Wang J, Liu W, Chen H. Physicochemical characterization, antioxidant and anticancer activities of proteins from four legume species. J Food Sci Technol 2017; 54:964-72. [PMID: 28303047 DOI: 10.1007/s13197-016-2390-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/14/2016] [Accepted: 10/20/2016] [Indexed: 10/20/2022]
Abstract
The physicochemical, functional, antioxidant and anticancer properties of protein isolates from the seeds of Soybean (SP), Black soybean (BSP), Adzuki bean (ABP), and Mung bean (MBP) were comparatively characterized. The difference was found in the protein composition and physicochemical properties of the four types of legume proteins, which affected the functional properties and bioactivities. BSP and SP had six predominant proteins with a molecular weight (MW) range of 20-95 kDa, whereas ABP and MBP showed the most intense bands of 48 kDa. ABP with higher essential amino acids content and the highest solubility exhibited the highest antioxidant activities among the four types of proteins. While BSP with higher content of acidic amino acids, low content of the hydrophobic amino acids and higher WHC, may have potential nutraceutical uses.
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Nazemiyeh E, Eskandani M, Sheikhloie H, Nazemiyeh H. Formulation and Physicochemical Characterization of Lycopene-Loaded Solid Lipid Nanoparticles. Adv Pharm Bull 2016; 6:235-41. [PMID: 27478786 DOI: 10.15171/apb.2016.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 05/04/2016] [Accepted: 05/14/2016] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Lycopene belongs to the carotenoids that shows good pharmacological properties including antioxidant, anti-inflammatory and anticancer. However, as a result of very low aqueous solubility, it has a limited systemic absorption, following oral administration. METHODS Here, we prepared a stable lycopene-loaded solid lipid nanoparticles using Precirol® ATO5, Compritol 888 ATO and myristic acid by hot homogenization method with some modification. The size and morphological characteristics of nanoparticles were evaluated using Scanning Electron Microscopy (SEM). Moreover, zeta potential and dispersity index (DI) were measured using zeta sizer. In addition, encapsulation efficiency (EE%), drug loading (DL) and cumulative drug release were quantified. RESULTS The results showed that the size and DI of particles was generally smaller in the case of SLNs prepared with precirol when compared to SLNs prepared with compritol. Scanning electron microscopy (SEM) and particle size analyses showed spherical SLNs (125 ± 3.89 nm), monodispersed distribution, and zeta potential of -10.06 ± 0.08 mV. High EE (98.4 ± 0.5 %) and DL (44.8 ± 0.46 mg/g) were achieved in the case of nanoparticles prepared by precirol. The stability study of the lycopene-SLNs in aqueous medium (4 °C) was showed that after 2 months there is no significant differences seen in size and DI compared with the fresh formulation. CONCLUSION Conclusively, in this investigation we prepared a stable lycopene-SLNs with good physicochemical characteristic which candidate it for the future in vivo trials in nutraceutical industries.
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Affiliation(s)
- Elham Nazemiyeh
- Department of Food Engineering, Maragheh Branch, Islamic Azad University, Maragheh, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Sheikhloie
- Department of Food Engineering, Maragheh Branch, Islamic Azad University, Maragheh, Iran
| | - Hossein Nazemiyeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran.; Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Yan HX, Zhang SS, He JH, Liu JP. Application of ethyl cellulose, microcrystalline cellulose and octadecanol for wax based floating solid dispersion pellets. Carbohydr Polym 2016; 148:143-52. [PMID: 27185125 DOI: 10.1016/j.carbpol.2016.04.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/01/2016] [Accepted: 04/11/2016] [Indexed: 12/18/2022]
Abstract
The present study aimed to develop and optimize the wax based floating sustained-release dispersion pellets for a weakly acidic hydrophilic drug protocatechuic acid to achieve prolonged gastric residence time and improved bioavailability. This low-density drug delivery system consisted of octadecanol/microcrystalline cellulose mixture matrix pellet cores prepared by extrusion-spheronization technique, coated with drug/ethyl cellulose 100cp solid dispersion using single-step fluid-bed coating method. The formulation-optimized pellets could maintain excellent floating state without lag time and sustain the drug release efficiently for 12h based on non-Fickian transport mechanism. Observed by SEM, the optimized pellet was the dispersion-layered spherical structure containing a compact inner core. DSC, XRD and FTIR analysis revealed drug was uniformly dispersed in the amorphous molecule form and had no significant physicochemical interactions with the polymer dispersion carrier. The stability study of the resultant pellets further proved the rationality and integrity of the developed formulation.
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Affiliation(s)
- Hong-Xiang Yan
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China.
| | - Shuang-Shuang Zhang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
| | - Jian-Hua He
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China
| | - Jian-Ping Liu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, PR China.
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Sapte S, Pore Y. Inclusion complexes of cefuroxime axetil with β-cyclodextrin: Physicochemical characterization, molecular modeling and effect of l-arginine on complexation. J Pharm Anal 2016; 6:300-306. [PMID: 29403996 PMCID: PMC5762625 DOI: 10.1016/j.jpha.2016.03.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 03/07/2016] [Accepted: 03/14/2016] [Indexed: 12/02/2022] Open
Abstract
The inclusion complexes of poorly water-soluble cephalosporin, cefuroxime axetil (CFA), were prepared with β-cyclodextrin (βCD) with or without addition of l-arginine (ARG) to improve its physicochemical properties. We also investigated the effect of ARG on complexation efficiency (CE) of βCD towards CFA in an aqueous medium through phase solubility behaviour according to Higuchi and Connors. Although phase solubility studies showed AL (linear) type of solubility curve in presence and absence of ARG, the CE and association constant (Ks) of βCD towards CFA were significantly promoted in presence of ARG, justifying its use as a ternary component. The solid systems of CFA with βCD were obtained by spray drying technique with or without incorporation of ARG and characterized by differential scanning calorimetry (DSC), X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM), and saturation solubility and dissolution studies. The molecular modeling studies provided a better insight into geometry and inclusion mode of CFA inside βCD cavity. The solubility and dissolution rate of CFA were significantly improved upon complexation with βCD as compared to CFA alone. However, ternary system incorporated with ARG performed better than binary system in physicochemical evaluation. In conclusion, ARG could be exploited as a ternary component to improve the physicochemical properties of CFA via βCD complexation.
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Affiliation(s)
- Sarika Sapte
- Department of Pharmaceutical Chemistry, Government College of Pharmacy, Karad, Maharashtra 415 124, India
| | - Yogesh Pore
- Department of Pharmaceutical Chemistry, Government College of Pharmacy, Karad, Maharashtra 415 124, India
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Wu Y, Petrochenko P, Chen L, Wong SY, Absar M, Choi S, Zheng J. Core size determination and structural characterization of intravenous iron complexes by cryogenic transmission electron microscopy. Int J Pharm 2016; 505:167-74. [PMID: 27001529 DOI: 10.1016/j.ijpharm.2016.03.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/08/2016] [Accepted: 03/18/2016] [Indexed: 12/21/2022]
Abstract
Understanding physicochemical properties of intravenous (IV) iron drug products is essential to ensure the manufacturing process is consistent and streamlined. The history of physicochemical characterization of IV iron complex formulations stretches over several decades, with disparities in iron core size and particle morphology as the major source of debate. One of the main reasons for this controversy is room temperature sample preparation artifacts, which affect accurate determination of size, shape and agglomeration/aggregation of nanoscale iron particles. The present study is first to report the ultra-fine iron core structures of four IV iron complex formulations, sodium ferric gluconate, iron sucrose, low molecular weight iron dextran and ferumoxytol, using a cryogenic transmission electron microscopy (cryo-TEM) preservation technique, as opposed to the conventional room temperature (RT-TEM) technique. Our results show that room temperature preparation causes nanoparticle aggregation and deformation, while cryo-TEM preserves IV iron colloidal suspension in their native frozen-hydrated and undiluted state. In contrast to the current consensus in literature, all four IV iron colloids exhibit a similar morphology of their iron oxide cores with a spherical shape, narrow size distribution and an average size of 2nm. Moreover, out of the four tested formulations, ferumoxytol exhibits a cluster-like community of several iron carbohydrate particles which likely accounts for its large hydrodynamic size of 25nm, measured with dynamic light scattering. Our findings outline a suitable method for identifying colloidal nanoparticle core size in the native state, which is increasingly important for manufacturing and design control of complex drug formulations, such as IV iron drug products.
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Affiliation(s)
- Yong Wu
- Division of Biology, Chemistry and Materials Science, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Peter Petrochenko
- Division of Therapeutic Performance, Office of Research Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Lynn Chen
- Division of Biology, Chemistry and Materials Science, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Sook Yee Wong
- Division of Therapeutic Performance, Office of Research Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Mohammad Absar
- Division of Therapeutic Performance, Office of Research Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Stephanie Choi
- Division of Therapeutic Performance, Office of Research Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States.
| | - Jiwen Zheng
- Division of Biology, Chemistry and Materials Science, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD 20993, United States.
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Mendes C, Buttchevitz A, Kruger JH, Kratz JM, Simões CM, de Oliveira Benedet P, Oliveira PR, Silva MA. Inclusion complexes of hydrochlorothiazide and β-cyclodextrin: Physicochemical characteristics, in vitro and in vivo studies. Eur J Pharm Sci 2016; 83:71-8. [PMID: 26687444 DOI: 10.1016/j.ejps.2015.12.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 11/06/2015] [Accepted: 12/09/2015] [Indexed: 11/21/2022]
Abstract
Hydrochlorothiazide is a thiazide diuretic widely used in clinics to treat arterial hypertension. It is a class IV drug according to the Biopharmaceutical Classification System, that is, it presents low solubility and low permeability and, consequently, low absorption in the gastrointestinal tract. As a strategy to improve stability and biopharmaceutical properties of hydrochlorothiazide, the use of cyclodextrins to produce inclusion complexes, applying different methods, was investigated. In the phase solubility studies, β-cyclodextrin was identified as the cyclodextrin which provided the most promising results in terms of the solubilization of the drug. The thermal analysis verified the interaction between hydrochlorothiazide and β-cyclodextrin, indicating the formation of inclusion complexes, and the thermal stability varied according to the preparation technique. The physicochemical characterization showed that in the inclusion complexes obtained by co-evaporation, kneading followed by freeze-drying and kneading followed by spray-drying the hydrochlorothiazide complexation mostly occurred with different degrees of amorphization and the drug solubility was improved. These three inclusion complexes presented better in vitro characteristics and the inclusion complex obtained by kneading followed by freeze-drying increased the in vivo diuretic activity of the drug accompanied by significant effects on natriuresis, kaliuresis and chloriuresis. The inclusion complex formation was effective in improving the biopharmaceutical properties of hydrochlorothiazide and protecting the drug from hydrolysis. This paper describes an important alternative approach to the development of liquid pharmaceutical formulations to pediatric administration, a real need of the current pharmaceutical market.
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81
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Cao SL, Hou P, Li B, Fu J, Yin XB, Dang XF, Yang CJ, Zhang J, Zhang H, Lei HM, Ni J. Preparation and physicochemical characterization of a solid dispersion of (3, 5, 6-trimethylpyrazin-2-yl) methyl 3-methoxy-4-[(3, 5, 6-trimethylpyrazin-2-yl) methoxy] benzoate (VA-T) and polyvinylpyrrolidone. Chin J Nat Med 2015; 13:861-866. [PMID: 26614461 DOI: 10.1016/s1875-5364(15)30090-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Indexed: 10/22/2022]
Abstract
Ischemic brain injury is a major disease which threatens human health and safety. (3, 5, 6-trimethylpyrazin-2-yl) methyl 3-methoxy-4-[(3, 5, 6-trimethylpyrazin-2-yl) methoxy] benzoate (VA-T), a newly discovered lead compound, is effective for the treatment of ischemic brain injury and its sequelae. But the poor solubility of VA-T leads to poor dissolution and limited clinical application. In order to improve the dissolution of VA-T, the pharmaceutical technology of solid dispersions was used in the present study. VA-T/polyvinylpyrrolidone (PVP) solid dispersion was prepared by the solvent method. The dissolution studies were carried out and solid state characterization was evaluated by differential scanning calorimetry (DSC), infrared spectroscopy (IR), x-ray diffraction (XRD) and scanning electron microscopy (SEM). The dissolution rate of VA-T was significantly improved by solid dispersion compared to that of the pure drug and physical mixture. The results of DSC and XRD indicated that the VA-T solid dispersion was amorphous. The IR spectra showed the possible interaction between VA-T and PVP was the formulation of hydrogen bonding. The SEM analysis demonstrated that there was no VA-T crystal observed in the solid dispersions. The ideal drug-to-PVP ratio was 1:5. In conclusion, the solid dispersion technique can be successfully used for the improvement of the dissolution profile of VA-T.
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Affiliation(s)
- Sa-Li Cao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Peng Hou
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Bin Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Jing Fu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Xing-Bin Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Xiao-Fang Dang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Chun-Jing Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Jin Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Hui Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Hai-Min Lei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Jian Ni
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China.
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82
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Fadeel B, Fornara A, Toprak MS, Bhattacharya K. Keeping it real: The importance of material characterization in nanotoxicology. Biochem Biophys Res Commun 2015; 468:498-503. [PMID: 26187673 DOI: 10.1016/j.bbrc.2015.06.178] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 06/23/2015] [Indexed: 12/12/2022]
Abstract
Nanomaterials are small and the small size and corresponding large surface area of nanomaterials confers specific properties, making these materials desirable for various applications, not least in medicine. However, it is pertinent to ask whether size is the only property that matters for the desirable or detrimental effects of nanomaterials? Indeed, it is important to know not only what the material looks like, but also what it is made of, as well as how the material interacts with its biological surroundings. It has been suggested that guidelines should be implemented on the types of information required in terms of physicochemical characterization of nanomaterials for toxicological studies in order to improve the quality and relevance of the published results. This is certainly a key issue, but it is important to keep in mind that material characterization should be fit-for-purpose, that is, the information gathered should be relevant for the end-points being studied.
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Affiliation(s)
- Bengt Fadeel
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden.
| | - Andrea Fornara
- Unit for Chemistry, Materials and Surfaces, SP Technical Research Institute of Sweden, 114 86 Stockholm, Sweden
| | - Muhammet S Toprak
- Functional Materials Division, Department of Materials and Nano Physics, Royal Institute of Technology, 164 40 Stockholm, Sweden
| | - Kunal Bhattacharya
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
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83
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Kong L, Yu L, Feng T, Yin X, Liu T, Dong L. Physicochemical characterization of the polysaccharide from Bletilla striata: effect of drying method. Carbohydr Polym 2015; 125:1-8. [PMID: 25857953 DOI: 10.1016/j.carbpol.2015.02.042] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 02/16/2015] [Accepted: 02/20/2015] [Indexed: 10/23/2022]
Abstract
The polysaccharide from Bletilla striata, a traditional Chinese herbal medicine, was obtained by different drying techniques: vacuum-drying (BVPS) or vacuum freeze-drying (BFPS). The effect of drying method on the physicochemical properties of the B striata polysaccharide was evaluated using high size exclusion chromatography coupled to multiangle laser light scattering (HPSEC-MALLS), FT-IR and UV spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The monosaccharide analysis and pH test revealed that the polysaccharide derived from B. striata was a neutral polysaccharide that is composed of glucose and mannose. The solubility and moisture content test's results demonstrated that BFPS was greater than BVPS. The number average molecular weight (Mn) and the computed average molecular weight (Mw) of 99.3% BFPS were 7.297×10(4)g/mol and 9.545×10(4)g/mol, respectively, whereas the Mn and Mw of 97.6% BVPS were 1.218×10(5)g/mol and 1.472×10(5)g/mol, respectively. The FT-IR and UV results indicated that drying technique has little effect on the structure of the polysaccharide. The thermal analysis showed that weight loss event was at 307.85°C and 305.50°C to BVPS and BFPS, respectively. Furthermore, the XRD confirmed that the polysaccharide was the amorphous nature. However, both SEM and AFM images exhibited that the drying technique had a significant impact on the morphology and conformation of the polysaccharide.
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Affiliation(s)
- Lingshan Kong
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Ling Yu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, PR China.
| | - Tao Feng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Xiujun Yin
- Department of Biological Pharmaceutical and Biotechnology, Pharma Tech, Shanghai 200131, PR China
| | - Tianjing Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Lei Dong
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, PR China
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84
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Dergham M, Lepers C, Verdin A, Cazier F, Billet S, Courcot D, Shirali P, Garçon G. Temporal-spatial variations of the physicochemical characteristics of air pollution Particulate Matter (PM2.5-0.3) and toxicological effects in human bronchial epithelial cells (BEAS-2B). Environ Res 2015; 137:256-267. [PMID: 25601727 DOI: 10.1016/j.envres.2014.12.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/16/2014] [Accepted: 12/17/2014] [Indexed: 06/04/2023]
Abstract
While the evidence for the health adverse effects of air pollution Particulate Matter (PM) has been growing, there is still uncertainty as to which constituents within PM are most harmful. Hence, to contribute to fulfill this gap of knowledge, some physicochemical characteristics and toxicological endpoints (i.e. cytotoxicity, oxidative damage, cytokine secretion) of PM2.5-0.3 samples produced during two different seasons (i.e. spring/summer or autumn/winter) in three different surroundings (i.e. rural, urban, or industrial) were studied, thereby expecting to differentiate their respective adverse effects in human bronchial epithelial cells (BEAS-2B). Physicochemical characteristics were closely related to respective origins and seasons of the six PM2.5-0.3 samples, highlighting the respective contributions of industrial and heavy motor vehicle traffic sources. Space- and season-dependent differences in cytotoxicity of the six PM2.5-0.3 samples could only be supported by considering both the physicochemical properties and the variance in air PM concentrations. Whatever spaces and seasons, dose- and even time-dependent increases in oxidative damage and cytokine secretion were reported in PM2.5-0.3-exposed BEAS-2B cells. However, the relationship between the chemical composition of each of the six PM2.5-0.3 samples and their oxidative or inflammatory potentials seemed to be very complex. These results supported the role of inorganic, ionic and organic components as exogenous source of Reactive Oxygen Species and, thereafter, cytokine secretion. Nevertheless, one of the most striking observation was that some inorganic, ionic and organic chemical components were preferentially associated with early oxidative events whereas others in the later oxidative damage and/or cytokine secretion. Taken together, these results indicated that PM mass concentration alone might not be able to explain the health outcomes, because PM is chemically nonspecific, and supported growing evidence that PM-size, composition and emission source, together with sampling season, interact in a complex manner to produce PM2.5-0.3-induced human adverse health effects.
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Affiliation(s)
- Mona Dergham
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Capucine Lepers
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Anthony Verdin
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Fabrice Cazier
- Université Lille Nord de France, Lille, France; Centre Commun de Mesures, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Sylvain Billet
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Dominique Courcot
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Pirouz Shirali
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France
| | - Guillaume Garçon
- Université Lille Nord de France, Lille, France; EA 4492, Université du Littoral-Côte d'Opale, Dunkerque, France; EA4483, Université de Lille 2, Lille, France.
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85
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Borgie M, Ledoux F, Verdin A, Cazier F, Greige H, Shirali P, Courcot D, Dagher Z. Genotoxic and epigenotoxic effects of fine particulate matter from rural and urban sites in Lebanon on human bronchial epithelial cells. Environ Res 2015; 136:352-362. [PMID: 25460656 DOI: 10.1016/j.envres.2014.10.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/21/2014] [Accepted: 10/14/2014] [Indexed: 06/04/2023]
Abstract
Assessment of air pollution by particulate matter (PM) is strongly required in Lebanon in the absence of an air quality law including updated air quality standards. Using two different PM2.5-0.3 samples collected at an urban and a rural site, we examined genotoxic/epigenotoxic effects of PM exposure within a human bronchial epithelial cell line (BEAS-2B). Inorganic and organic contents evidence the major contribution of traffic and generating sets in the PM2.5-0.3 composition. Urban PM2.5-0.3 sample increased the phosphorylation of H2AX, the telomerase activity and the miR-21 up-regulation in BEAS-2B cells in a dose-dependent manner. Furthermore, urban PM2.5-0.3 induced a significant increase in CYP1A1, CYP1B1 and AhRR genes expression. The variable concentrations of transition metals and organic compounds detected in the collected PM2.5-0.3 samples might be the active agents leading to a cumulative DNA damage, critical for carcinogenesis.
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Affiliation(s)
- Mireille Borgie
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), EA 4492, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Groupe de Recherche Molécules Bioactives, Ecole Doctorale des Sciences et Technologies, Université Libanaise, Liban; Université Lille Nord de France, Lille, France
| | - Frédéric Ledoux
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), EA 4492, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Université Lille Nord de France, Lille, France
| | - Anthony Verdin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), EA 4492, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Université Lille Nord de France, Lille, France
| | - Fabrice Cazier
- Centre Commun de Mesures, Maison de la Recherche en Environnement Industriel 1, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Université Lille Nord de France, Lille, France
| | - Hélène Greige
- Groupe de Recherche Molécules Bioactives, Ecole Doctorale des Sciences et Technologies, Université Libanaise, Liban; Département de Chimie et de Biochimie, Faculté des Sciences, Université Libanaise, Liban
| | - Pirouz Shirali
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), EA 4492, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Université Lille Nord de France, Lille, France
| | - Dominique Courcot
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), EA 4492, Maison de la Recherche en Environnement Industriel, Université du Littoral Côte d'Opale, 145 Avenue Maurice Schumann, 59140 Dunkerque, France; Université Lille Nord de France, Lille, France.
| | - Zeina Dagher
- Groupe de Recherche Molécules Bioactives, Ecole Doctorale des Sciences et Technologies, Université Libanaise, Liban; Département de Biologie, Faculté des Sciences, Université Libanaise, Liban
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86
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Joseph B, Dhas B, Hena V, Raj J. Bacteriocin from Bacillus subtilis as a novel drug against diabetic foot ulcer bacterial pathogens. Asian Pac J Trop Biomed 2014; 3:942-6. [PMID: 24093784 DOI: 10.1016/s2221-1691(13)60183-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 09/30/2013] [Accepted: 11/13/2013] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE To isolate and identify Bacillus subtilis (B. subtilis) from soil and to characterize and partially purify the bacteriocin. To evaluate the antimicrobial activity against four diabetic foot ulcer bacterial pathogens. METHODS Genotypic identification was done based on Bergey's manual of systemic bacteriology. Antimicrobial susceptibility test was done by Kirby-Bauer disc diffusion method. Colonies were identified by colony morphology and biochemical characterization and also compared with MTCC 121 strain. Further identification was done by 16S rRNA sequencing. Inhibitory activities of partially purified bacteriocin on all the DFU isolates were done by agar well diffusion method. The strain was identified to produce bacteriocin by stab overlay assay. Bacteriocin was extracted by organic solvent extraction using chloroform, further purified by HPLC and physical, and chemical characterization was performed. RESULTS The four isolates showed high level of resistance to amoxyclav and sensitivity to ciprofloxacin. HPLC purification revealed that the extracts are bacteriocin. The phylogenetic tree analysis results showed that the isolate was 99% related to B. subtilis BSF01. The results reveled activity to all the four isolates and high level of activity was seen in case of Klebsiella sp. CONCLUSIONS Partially purified bacteriocin was found to have antimicrobial activity against the four diabetic foot ulcer bacterial pathogens, which can thus be applied as a better drug molecule on further studies. The strain B. subtilis are found to be safe for use and these antimicrobial peptides can be used as an antimicrobial in humans to treat DFU bacterial pathogens.
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Affiliation(s)
- Baby Joseph
- Interdisciplinary Research Centre, Department of Biotechnology, Malankara Catholic College, Mariagiri, Kaliakkavilai, Tamil Nadu, India.
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87
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Pasquet J, Chevalier Y, Couval E, Bouvier D, Noizet G, Morlière C, Bolzinger MA. Antimicrobial activity of zinc oxide particles on five micro-organisms of the Challenge Tests related to their physicochemical properties. Int J Pharm 2013; 460:92-100. [PMID: 24211859 DOI: 10.1016/j.ijpharm.2013.10.031] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/13/2013] [Accepted: 10/16/2013] [Indexed: 11/25/2022]
Abstract
Zinc oxide is commonly used in pharmaceutical products to prevent or treat topical or systemic diseases owing to its antimicrobial properties, but it is scarcely used as preservative in topical formulations. The aim of this work was to investigate the antimicrobial activity of zinc oxide (ZnO) powders on the five microbial strains used for Challenge Tests in order to evaluate this inorganic compound as a preservative in topical formulation and assess relationships between the structural parameters of ZnO particles and their antimicrobial activity. For this purpose, the physicochemical characteristics of three ZnO grades were measured and their antimicrobial efficacy against the following micro-organisms - Escherichia coli; Staphylococcus aureus; Pseudomonas aeruginosa; Candida albicans; Aspergillus brasiliensis - was assessed using disc diffusion susceptibility tests and a broth dilution method. The comprehensive dataset of physicochemical characteristics and antimicrobial activities (MIC and MBC) is discussed regarding methodological issues related to the particulate nature of ZnO and structure-activity relationships. Every ZnO grade showed bactericidal and antifungal activity against the five tested micro-organisms in a concentration dependent manner. ZnO particles with smaller size, larger specific area and higher porosity exhibit higher antimicrobial activity. Such trends are related to their mechanisms of antimicrobial activity.
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Affiliation(s)
- Julia Pasquet
- Strand Cosmetics Europe, 124 route du Charpenay, 69210 Lentilly, France; Université Claude Bernard Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP), CNRS UMR 5007, 43 bd 11 Novembre, 69622 Villeurbanne, France
| | - Yves Chevalier
- Université Claude Bernard Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP), CNRS UMR 5007, 43 bd 11 Novembre, 69622 Villeurbanne, France.
| | - Emmanuelle Couval
- Strand Cosmetics Europe, 124 route du Charpenay, 69210 Lentilly, France
| | - Dominique Bouvier
- Strand Cosmetics Europe, 124 route du Charpenay, 69210 Lentilly, France
| | - Gaëlle Noizet
- Strand Cosmetics Europe, 124 route du Charpenay, 69210 Lentilly, France
| | - Cécile Morlière
- Strand Cosmetics Europe, 124 route du Charpenay, 69210 Lentilly, France
| | - Marie-Alexandrine Bolzinger
- Université Claude Bernard Lyon 1, Laboratoire d'Automatique et de Génie des Procédés (LAGEP), CNRS UMR 5007, 43 bd 11 Novembre, 69622 Villeurbanne, France
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Misquith A, Fung HWM, Dowling QM, Guderian JA, Vedvick TS, Fox CB. In vitro evaluation of TLR4 agonist activity: formulation effects. Colloids Surf B Biointerfaces 2013; 113:312-9. [PMID: 24121074 DOI: 10.1016/j.colsurfb.2013.09.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 09/03/2013] [Accepted: 09/04/2013] [Indexed: 12/17/2022]
Abstract
Effective in vitro evaluation of vaccine adjuvants would allow higher throughput screening compared to in vivo studies. However, vaccine adjuvants comprise a wide range of structures and formulations ranging from soluble TLR agonists to complex lipid-based formulations. The effects of formulation parameters on in vitro bioactivity assays and the correlations with in vivo adjuvant activity is not well understood. In the present work, we employ the Limulus amebocyte lysate assay and a human macrophage cellular cytokine production assay to demonstrate the differences in in vitro bioactivity of four distinct formulations of the synthetic TLR4 agonist GLA: an aqueous nanosuspension (GLA-AF), an oil-in-water emulsion (GLA-SE), a liposome (GLA-LS), and an alum-adsorbed formulation (GLA-Alum). Furthermore, we demonstrate the importance of the localization of GLA on in vitro potency. By comparing to previous published reports on the in vivo bioactivity of these GLA-containing formulations, we conclude that the most potent activators of the in vitro systems may not be the most potent in vivo adjuvant formulations. Furthermore, we discuss the formulation considerations which should be taken into account when interpreting data from in vitro adjuvant activity assays.
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Affiliation(s)
- Ayesha Misquith
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA
| | - H W Millie Fung
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA
| | - Quinton M Dowling
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA
| | - Jeffrey A Guderian
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA
| | - Thomas S Vedvick
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA
| | - Christopher B Fox
- Infectious Disease Research Institute (IDRI), 1124 Columbia Street, Ste 400, Seattle, WA 98104, USA.
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89
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Korn C, Balbach S. Compound selection for development - is salt formation the ultimate answer? Experiences with an extended concept of the "100mg approach". Eur J Pharm Sci 2013; 57:257-63. [PMID: 24036162 DOI: 10.1016/j.ejps.2013.08.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 08/16/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
Abstract
In order to select the best candidates for development, physicochemical criteria such as solubility, chemical and physical stability, hygroscopicity, and thermal characteristics need to be evaluated as early as possible and balanced against other important criteria such as pharmacology or pharmacokinetics. It could be shown, that our miniaturized pharmaceutical profiling concept ("100mg approach"), is capable to reliably identify potential development issues of drug candidates, which, therefore, can be approached early on. Salt formation is a well established strategy to improve unfavorable properties, in particular poor solubility. This article describes our stepwise approach on salt screening, including selection criteria, and summarizes the observations we had during compound investigation. Considering a data base of 337 compounds (salts and uncharged substances), experiences with various counterions evaluated over the last 10years are discussed. We realized that salt formation usually improves poor solubility of a given candidate, but this is often at the cost of other attributes being relevant for pharmaceutical development. Surprisingly, in more than 50% of all cases the "free form" was finally selected after carefully weighing all compound characteristics. Therefore, we conclude that an early salt selection strategy is of utmost importance to predict potential development issues and to enable the provision of alternative physical forms. However, salt formation itself is not necessarily the best solution to meet all development requirements. The selection of a free form (acid or base) in combination with advanced formulation strategies should always be considered, sometimes as best compromise.
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Affiliation(s)
- Christian Korn
- Analytical Sciences, Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, 65926 Frankfurt, Germany
| | - Stefan Balbach
- Analytical Sciences, Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, 65926 Frankfurt, Germany.
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90
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Panda S, Chandra G. Physicochemical characterization and functional analysis of some snake venom toxin proteins and related non-toxin proteins of other chordates. Bioinformation 2012; 8:891-6. [PMID: 23144546 PMCID: PMC3489095 DOI: 10.6026/97320630008891] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 09/03/2012] [Indexed: 11/23/2022] Open
Abstract
Snake venom contains a diverse array of proteins and polypeptides. Cytotoxins and short neurotoxins are non-enzymatic polypeptide components of snake venom. The three-dimensional structure of cytotoxin and short neurotoxin resembles a three finger appearance of three-finger protein super family. Different family members of three-finger protein super family are employed in diverse biological functions. In this work we analyzed the cytotoxin, short neurotoxin and related non-toxin proteins of other chordates in terms of functional analysis, amino acid compositional (%) profile, number of amino acids, molecular weight, theoretical isoelectric point (pI), number of positively charged and negatively charged amino acid residues, instability index and grand average of hydropathy with the help of different bioinformatical tools. Among all interesting results, profile of amino acid composition (%) depicts that all sequences contain a conserved cysteine amount but differential amount of different amino acid residues which have a family specific pattern. Involvement in different biological functions is one of the driving forces which contribute the vivid amino acid composition profile of these proteins. Different biological system dependent adaptation gives the birth of enriched bio-molecules. Understanding of physicochemical properties of these proteins will help to generate medicinally important therapeutic molecules for betterment of human lives.
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Affiliation(s)
- Subhamay Panda
- Division of Biological Sciences, Department of Pharmacy, Gupta College of Technological Sciences, Ashram More, G.T. Road, Asansol-713301, West Bengal, India
| | - Goutam Chandra
- Department of Zoology, The University of Burdwan, Golapbag, Burdwan -713104, West Bengal, India
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Emeje M, Isimi C, Byrn S, Fortunak J, Kunle O, Ofoefule S. Extraction and physicochemical characterization of a new polysaccharide obtained from the fresh fruits of abelmoschus esculentus. Iran J Pharm Res 2011; 10:237-46. [PMID: 24250349 PMCID: PMC3828916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
This paper is the first multi-scale characterization of the fluidize-dried gum extracted from the fresh fruits of the plant Abelmoschus esculentus. It describes the physical, thermal, sorptional and functional properties of this natural gum. Elemental analysis, scanning electron microscopy (SEM), particle size analysis, X-ray powder diffraction (XPRD), thermo-gravimetric analysis (TGA), differential scanning calorimetry (DSC), fourier transmittance infra red (FT-IR), and nuclear magnetic resonance (NMR) spectroscopy were used to characterize the gum sample. Abelmoschus Esculentus Gum (AEG) had a glass transition temperature (Tg) of 70°C and no melting peak. It showed a 14.91% loss in weight at 195°C. X-ray diffractogram showed numerous broad halos for AEG. Elemental analysis showed that AEG contains 39.5, 7.3, 51.8, and 1.4% carbon, hydrogen, oxygen and nitrogen respectively. The results obtained in this study established the fundamental characteristics of AEG and suggests its potential application in the food, cosmetic and pharmaceutical sectors.
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Affiliation(s)
- Martins Emeje
- Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Idu, P.M.B.21 Garki-Abuja, Nigeria.,Corresponding author: E-mail:
| | - Christiana Isimi
- Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Idu, P.M.B.21 Garki-Abuja, Nigeria.
| | - Stephen Byrn
- Department of Medicinal Chemistry and Physical Pharmacy, Purdue University, Indiana, USA.
| | | | - Olobayo Kunle
- Department of Pharmaceutical Technology and Raw Materials Development, National Institute for Pharmaceutical Research and Development, Idu, P.M.B.21 Garki-Abuja, Nigeria.
| | - Sabinus Ofoefule
- Department of Pharmaceutical Technology and Industrial Pharmacy University of Nigeria, Nsukka, Enugu State, Nigeria.
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