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Onyedibe KI, Nemeth AM, Dayal N, Smith RD, Lamptey J, Ernst RK, Melander RJ, Melander C, Sintim HO. Re-sensitization of Multidrug-Resistant and Colistin-Resistant Gram-Negative Bacteria to Colistin by Povarov/Doebner-Derived Compounds. ACS Infect Dis 2023; 9:283-295. [PMID: 36651182 PMCID: PMC10547215 DOI: 10.1021/acsinfecdis.2c00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Colistin, typically viewed as the antibiotic of last resort to treat infections caused by multidrug-resistant (MDR) Gram-negative bacteria, had fallen out of favor due to toxicity issues. The recent increase in clinical usage of colistin has resulted in colistin-resistant isolates becoming more common. To counter this threat, we have investigated previously reported compounds, HSD07 and HSD17, and developed 13 compounds with more desirable drug-like properties for colistin sensitization against 16 colistin-resistant bacterial strains, three of which harbor the plasmid-borne mobile colistin resistance (mcr-1). Lead compound HSD1624, which has a lower LogDpH7.4 (2.46) compared to HSD07 (>5.58), reduces the minimum inhibitory concentration (MIC) of colistin against Pseudomonas aeruginosa strain TRPA161 to 0.03 μg/mL from 1024 μg/mL (34,000-fold reduction). Checkerboard assays revealed that HSD1624 and analogues are also synergistic with colistin against colistin-resistant strains of Escherichia coli, Acinetobacter baumannii, and Klebsiella pneumoniae. Preliminary mechanism of action studies indicate that HSD1624 exerts its action differently depending on the bacterial species. Time-kill studies suggested that HSD1624 in combination with 0.5 μg/mL colistin was bactericidal to extended-spectrum beta-lactamase (ESBL)-producing E. coli, as well as to E. coli harboring mcr-1, while against P. aeruginosa TRPA161, the combination was bacteriostatic. Mechanistically, HSD1624 increased membrane permeability in K. pneumoniae harboring a plasmid containing the mcr-1 gene but did not increase radical oxygen species (ROS), while a combination of 15 μM HSD1624 and 0.5 μg/mL colistin significantly increased ROS in P. aeruginosa TRPA161. HSD1624 was not toxic to mammalian red blood cells (up to 226 μM).
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Affiliation(s)
- Kenneth I Onyedibe
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana47907, United States
- Center for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana47906, United States
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, West Lafayette, Indiana47906, United States
| | - Ansley M Nemeth
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Neetu Dayal
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana47907, United States
- Center for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana47906, United States
| | - Richard D Smith
- Department of Microbial Pathogenesis, University of Maryland-Baltimore, Baltimore, Maryland21201, United States
| | - Jones Lamptey
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana47907, United States
- Center for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana47906, United States
| | - Robert K Ernst
- Department of Microbial Pathogenesis, University of Maryland-Baltimore, Baltimore, Maryland21201, United States
| | - Roberta J Melander
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Christian Melander
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Herman O Sintim
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana47907, United States
- Center for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana47906, United States
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, West Lafayette, Indiana47906, United States
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2
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Alam MJ, Maruf M, Iqbal MA, Hasan M, Sohan MS, Shariar MR, Haidar IKA, Chowdhury MAW, Ghose A, Hoque KMF, Reza MA. Evaluation of the properties of Bungarus caeruleus venom and checking the efficacy of antivenom used in Bangladesh for its bite treatment. Toxicon X 2023; 17:100149. [PMID: 36654657 PMCID: PMC9841277 DOI: 10.1016/j.toxcx.2023.100149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 01/05/2023] Open
Abstract
As a disaster-prone country with unique geographical features, snake biting is a major public health concern in Bangladesh. The primary reasons of mortality from snakebite include late presentation to the hospital, low efficacy of antivenom, and a lack of adequate management facilities. Because snake venom characteristics vary depending on geographical location, antivenom should be manufactured from snakes native to the region in which it would be administered. Bungarus caeruleus is a highly venomous snake contributing to the major snakebite issue in Bangladesh. Therefore, the neutralization efficacy of the antivenom against B. caeruleus venom was evaluated in the current study along with the characterization of venom. For biological characterization of venom, RP-HPLC and SDS-PAGE profiling, hemolytic activity, hemorrhagic activity, phospholipases A2 (PLA2) activity, edema inducing activity and histopathological observations were carried out following standard protocol. LD50 of the venom was calculated along with neutralization potency of Incepta antivenom through probit analysis. Results showed that venom possesses phospholipase A2 activity, hemolytic activity and edema inducing activity while hemorrhagic activity was absent in the skin of envenomed mice. Histopathological alterations including necrosis, congestion and infiltrations were observed in envenomed mice organs after hematoxylin and eosin staining. Neutralization study showed that Incepta polyvalent antivenom could neutralize (potency 0.53 mg/ml) the lethal effect in in vitro study on mice. Further investigation on snakebite epidemiology and clinical observations of the envenomed patients will help in combating the snakebite problem more efficiently.
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Affiliation(s)
- Md Jahangir Alam
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md.Mahmudul.Hasan Maruf
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Asif Iqbal
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mahedi Hasan
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Sohanur.Rahman Sohan
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Ragib Shariar
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Ibrahim Khalil Al Haidar
- Venom Research Centre, Chittagong Medical College, Chattogram, 4203, Bangladesh,Department of Zoology, University of Chittagong, Chattogram, 4331, Bangladesh
| | - Mohammad Abdul Wahed Chowdhury
- Venom Research Centre, Chittagong Medical College, Chattogram, 4203, Bangladesh,Department of Zoology, University of Chittagong, Chattogram, 4331, Bangladesh
| | - Aniruddha Ghose
- Venom Research Centre, Chittagong Medical College, Chattogram, 4203, Bangladesh,Department of Medicine, Chittagong Medical College, Chattogram, 4203, Bangladesh
| | - Kazi Md Faisal Hoque
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Abu Reza
- Molecular Biology and Protein Science Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh,Corresponding author.
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Abbas A, Anwar F, Ahmad N, Shahid M, Al-Mijalli SH, Yaseen M, Farooq S, Iqbal M. Characterization of Bioactives and Nutra-Pharmaceutical Potential of Supercritical Fluid and Hydro-Distilled Extracted Coriander Leaves Essential Oil. Dose Response 2022; 20:15593258221130749. [PMID: 36387777 PMCID: PMC9647271 DOI: 10.1177/15593258221130749] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The volatiles chemical composition and biological attributes of coriander
(Coriandrum sativum L.) leaves essential oil obtained by
two extraction techniques namely supercritical fluid extraction and
hydro-distillation is appraised. The coriander essential oil yield (.12%) by
hydro-distillation was slightly higher than that of supercritical fluid
extraction (.09%). The physico-chemical variables of the essential oil obtained
from both the techniques varied in significantly (P < .05). GC-MS analysis
identified 23 different components in supercritical fluid extracted oil and 18
components in hydro-distilled essential oil having linalool as major component
(51.32% and 61.78%, respectively) followed by phytol (12.71%). The oil recovered
by supercritical fluid extraction exhibited greater DPPH radical scavenging
activity as well as reducing power as compared to the essential oil obtained by
hydro-distillation technique along with a stronger biofilm inhibition and least
hemolysis. The results of antimicrobial activity revealed that super critical
fluid extracted essential oil has potent antifungal and antibacterial activity
against P. multocida and A alternata, whereas
hydro-distilled essential oil displayed better antimicrobial potential against
E coli and A niger. Overall, these results
depict that supercritical fluid extraction is superior than hydro-distillation
with regard to isolation of better-quality coriander essential oil for
nutra-pharmaceutical developments.
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Affiliation(s)
- Ali Abbas
- Department of Chemistry, Govt. Postgraduate Taleem-ul-Islam College, Chiniot, Pakistan
- Institute of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Farooq Anwar
- Institute of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Naveed Ahmad
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Muhammad Shahid
- Department of Biotechnology and Bioinformatics, Government College University Faisalabad, Pakistan
| | - Samiah H. Al-Mijalli
- Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Muhammad Yaseen
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | | | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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Membrane acting Povarov-Doebner derived compounds potently disperse preformed multidrug resistant Gram-positive bacterial biofilms. Eur J Med Chem 2022; 240:114550. [DOI: 10.1016/j.ejmech.2022.114550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022]
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Ghafoor B, Najabat Ali M. Synthesis and in vitro evaluation of natural drug loaded polymeric films for cardiovascular applications. J BIOACT COMPAT POL 2022. [DOI: 10.1177/08839115221085735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Drug eluting stents (DES) can efficiently reduce the atherosclerosis and restenosis issues of coronary artery as compared to bare metal stents due to the presence of pharmaceutically active agent on their surface. Nevertheless, the arising safety concerns of DES such as delayed healing and late in stent restenosis and thrombus, has stirred the research efforts to improve the outcomes of the DES. In this connection, attention is being shifted from the use of synthetic drug to natural drug for DES. In the present work, natural compound loaded polymeric films were synthesized and their antioxidant and anticoagulation capabilities were assessed through in vitro testing. The potential of the drug loaded polymeric films to curb the production of free radicals was evaluated by carrying out antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The in vitro platelet adhesion was investigated through static platelet adhesion test while effect of synthesized films on intrinsic coagulation pathway was investigated through activated partially thromboplastin time (APTT). Moreover, to further evaluate the blood compatibility of the developed drug loaded films, in vitro hemolytic and anti-thrombolytic assays were carried out. The obtained results indicated that, incorporating herbal compounds such as ginger, magnolol and curcumin, in polymeric matrix (PVA) has significantly improved the blood compatibility of the polymeric films. Hence, it can be concluded that the synthesized drug loaded polymeric films have the potential capability to be used as a potential coating material for coating biomedical implants with good anticoagulation and antioxidant property to cater the cardiovascular issues such as atherosclerosis, restenosis and thrombus formation.
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Affiliation(s)
- Bakhtawar Ghafoor
- Biomedical Engineering & Sciences Department, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Murtaza Najabat Ali
- Biomedical Engineering & Sciences Department, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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Onyedibe KI, Dayal N, Sintim HO. SF 5- and SCF 3-substituted tetrahydroquinoline compounds as potent bactericidal agents against multidrug-resistant persister Gram-positive bacteria. RSC Med Chem 2021; 12:1879-1893. [PMID: 34825185 DOI: 10.1039/d1md00211b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/09/2021] [Indexed: 11/21/2022] Open
Abstract
Bacteria persister cells are immune to most antibiotics and hence compounds that are active against persister bacteria are needed. We screened a chemical library of SF5- and SCF3-substituted tetrahydroquinoline compounds, synthesized via the Povarov reaction, for antibacterial activity and identified active compounds that displayed good activities against many Gram-positive bacteria, including persisters. The most potent of these compounds, HSD1835, inhibited the growth of drug-resistant Gram-positive bacterial pathogens (including clinical strains) at concentrations ranging from 1 μg mL-1 to 4 μg mL-1. Several of the SCF3- and SF5-containing compounds were active against methicillin-resistant Staphylococcus aureus (MRSA) and against the two most fatal strains of vancomycin-resistant Enterococcus (VRE), VRE faecalis and VRE faecium. The compounds showed bactericidal activity against stationary phase persister MRSA in time-kill assays. Mechanistic studies showed that HSD1835 acts by disrupting bacterial membranes. Scanning electron microscopy (SEM) was used to confirm bacterial membrane disruption. Interestingly, in a 30 day serial exposure experiment, MRSA remained susceptible to low-dose HSD1835 whilst resistance to ciprofloxacin and mupirocin emerged by day 10. Analogs of HSD1835, which did not bear the SF5 or SCF3 moieties, were inactive against bacteria. Recent reports (G. A. Naclerio, N. S. Abutaleb, K. I. Onyedibe, M. N. Seleem and H. O. Sintim, RSC Med. Chem. 2020, 11, 102-110 and G. A. Naclerio, N. S. Abutaleb, D. Li, M. N. Seleem and H. O. Sintim, J. Med. Chem. 2020, 63(20), 11934-11944) also demonstrated that adding the SF5 or SCF3 groups to a different scaffold (oxadiazoles) enhanced the antibacterial properties of the compounds, so it appears that these groups are privileged moieties that enhance the antimicrobial activities of compounds.
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Affiliation(s)
- Kenneth I Onyedibe
- Department of Chemistry, Purdue University 560 Oval Drive, West Lafayette Indiana 47907 USA .,Purdue Institute of Inflammation, Immunology, and Infectious Disease West Lafayette IN 47907 USA
| | - Neetu Dayal
- Department of Chemistry, Purdue University 560 Oval Drive, West Lafayette Indiana 47907 USA
| | - Herman O Sintim
- Department of Chemistry, Purdue University 560 Oval Drive, West Lafayette Indiana 47907 USA .,Purdue Institute of Inflammation, Immunology, and Infectious Disease West Lafayette IN 47907 USA.,Center for Drug Discovery, Purdue University 720 Clinic Drive, West Lafayette Indiana 47907 USA
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7
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Synthesis and Appraisal of Natural Drug-Polymer-Based Matrices Relevant to the Application of Drug-Eluting Coronary Stent Coatings. Cardiol Res Pract 2020; 2020:4073091. [PMID: 33282417 PMCID: PMC7685865 DOI: 10.1155/2020/4073091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/15/2020] [Accepted: 10/28/2020] [Indexed: 11/17/2022] Open
Abstract
Cardiovascular diseases are becoming a leading cause of death in the world, and attention is being paid to develop natural drug-based treatment to cure heart diseases. Curcumin, ginger, and magnolol are pharmaceutically active in many ways, having properties including anticoagulation, antiproliferation, anti-inflammatory, and antioxidant, and may be used to synthesis coatings for drug-eluting stents to treat cardiovascular diseases. In the present investigation, a degradable polymer with varying molecular weights was used as a drug carrier to control the degradation of polymer; three different natural drugs such as curcumin, magnolol, and ginger were used owing to their reported pharmacological properties. The results of in vitro measurements of all three natural drugs released from drug-loaded polymeric films showed an initial burst release followed by a sustained release for up to 38 days of measurement. On the other hand, different levels of hemocompatibility were observed by varying concentrations of natural drugs in human erythrocytes. As per the ASTM F756 standard, ginger having low concentration showed optimum hemocompatibility with regard to the drug-eluting stent application as compared with magnolol and curcumin concentrations, which showed suboptimal hemocompatibility and fall in the range of mild-to-severe blood toxicity category. The structure of the coating films was characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) with results suggesting that there was no chemical bonding between the polymer and drug. Thus, according to this study, it can be concluded that after more detailed in vitro testing such as hemocompatibility tests and platelet adhesion testing, ginger can be a better candidate as a drug-coating material for drug-eluting stent applications.
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8
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Dayal N, Opoku-Temeng C, Mohammad H, Abutaleb NS, Hernandez D, Onyedibe KI, Wang M, Zeller M, Seleem MN, Sintim HO. Inhibitors of Intracellular Gram-Positive Bacterial Growth Synthesized via Povarov-Doebner Reactions. ACS Infect Dis 2019; 5:1820-1830. [PMID: 31512848 DOI: 10.1021/acsinfecdis.9b00022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Staphylococcus aureus can survive both inside and outside of phagocytic and nonphagocytic host cells. Once in the intracellular milieu, most antibiotics have reduced ability to kill S. aureus, thus resulting in relapse of infection. Consequently, there is a need for antibacterial agents that can accumulate to lethal concentrations within host cells to clear intracellular infections. We have identified tetrahydrobenzo[a or c]phenanthridine and tetrahydrobenzo[a or c]acridine compounds, synthesized via a one-flask Povarov-Doebner operation from readily available amines, aldehydes, and cyclic ketones, as potent agents against drug-resistant S. aureus. Importantly, the tetrahydrobenzo[a or c]phenanthridine and tetrahydrobenzo[a or c]acridine compounds can accumulate in macrophage cells and reduce the burden of intracellular MRSA better than the drug of choice, vancomycin. We observed that MRSA could not develop resistance (by passage 30) against tetrahydrobenzo[a or c]acridine compound 15. Moreover, tetrahydrobenzo[c]acridine compound 15 and tetrahydrobenzo[c]phenanthridine compound 16 were nontoxic to red blood cells and were nonmutagenic. Preliminary data indicated that compound 16 reduced bacterial load (MRSA USA300) in mice (thigh infection model) to the same degree as vancomycin. These observations suggest that compounds 15 and 16 and analogues thereof could become therapeutic agents for the treatment of chronic MRSA infections.
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Affiliation(s)
- Neetu Dayal
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
| | - Clement Opoku-Temeng
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
- Chemistry and Biochemistry Department, University of Maryland, 8051 Regents Drive, College Park, Maryland 20742, United States
| | - Haroon Mohammad
- Department of Comparative Pathobiology, Purdue University College of Veterinary Medicine, 625 Harrison Street, West Lafayette, Indiana 47907, United States
| | - Nader S. Abutaleb
- Department of Comparative Pathobiology, Purdue University College of Veterinary Medicine, 625 Harrison Street, West Lafayette, Indiana 47907, United States
| | - Delmis Hernandez
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
| | - Kenneth Ikenna Onyedibe
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, West Lafayette, Indiana 47907, United States
| | - Modi Wang
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
| | - Matthias Zeller
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
| | - Mohamed N. Seleem
- Department of Comparative Pathobiology, Purdue University College of Veterinary Medicine, 625 Harrison Street, West Lafayette, Indiana 47907, United States
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, West Lafayette, Indiana 47907, United States
| | - Herman O. Sintim
- Chemistry Department, Institute for Drug Discovery, Purdue University, 720 Clinic Drive, West Lafayette, Indiana 47907, United States
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, West Lafayette, Indiana 47907, United States
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Sawangrat K, Yamashita S, Tanaka A, Morishita M, Kusamori K, Katsumi H, Sakane T, Yamamoto A. Modulation of Intestinal Transport and Absorption of Topotecan, a BCRP Substrate, by Various Pharmaceutical Excipients and Their Inhibitory Mechanisms of BCRP Transporter. J Pharm Sci 2019; 108:1315-1325. [DOI: 10.1016/j.xphs.2018.10.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 10/28/2022]
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Klátyik S, Bohus P, Darvas B, Székács A. Authorization and Toxicity of Veterinary Drugs and Plant Protection Products: Residues of the Active Ingredients in Food and Feed and Toxicity Problems Related to Adjuvants. Front Vet Sci 2017; 4:146. [PMID: 28929103 PMCID: PMC5591397 DOI: 10.3389/fvets.2017.00146] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/17/2017] [Indexed: 11/30/2022] Open
Abstract
Chemical substances applied in animal husbandry or veterinary medicine and in crop protection represent substantial environmental loads, and their residues occur in food and feed products. Product approval is governed differently in these two sectors in the European Union (EU), and the occurrence of veterinary drug (VD) and pesticide residues indicated by contamination notification cases in the Rapid Alert System for Food and Feed of the EU also show characteristic differences. While the initial high numbers of VD residues reported in 2002 were successfully suppressed to less than 100 cases annually by 2006 and on, the number of notification cases for pesticide residues showed a gradual increase from a low (approximately 50 cases annually) initial level until 2005 to more than 250 cases annually after 2009, with a halt occurring only in 2016. Main notifiers of VD residues include Germany, Belgium, the UK, and Italy (63, 59, 42, and 31 notifications announced, respectively), and main consigning countries of non-compliances are Vietnam, India, China, and Brazil (88, 50, 34, and 23 notifications, respectively). Thus, countries of South and Southeast Asia are considered a vulnerable point with regard to VD residues entering the EU market. Unintended side effects of VDs and plant protection products may be caused not only by the active ingredients but also by various additives in these preparations. Adjuvants (e.g., surfactants) and other co-formulants used in therapeutic agents and feed additives, as well as in pesticide formulations have long been considered as inactive ingredients in the aspects of the required main biological effect of the pharmaceutical or pesticide, and in turn, legal regulations of the approval and marketing of these additives specified significantly less stringent risk assessment requirements, than those specified for the active ingredients. However, numerous studies have shown additive, synergistic, or antagonistic side effects between the active ingredients and their additives in formulated products; moreover, toxicity has been evidenced for various additives. Therefore, toxicological evaluation of surfactants and other additives is essential for proper environmental risk assessment of formulations used in agriculture including animal husbandry and plant protection.
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Affiliation(s)
- Szandra Klátyik
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Budapest, Hungary
| | | | - Béla Darvas
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Budapest, Hungary
| | - András Székács
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Budapest, Hungary
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Bhowmick R, Islam ASM, Giri A, Katarkar A, Ali M. A rhodamine based turn-on chemosensor for Fe3+ in aqueous medium and interactions of its Fe3+ complex with HSA. NEW J CHEM 2017. [DOI: 10.1039/c7nj02446k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A novel hexa-coordinating rhodamine-based chemosensor, HL6, selectively and rapidly recognizes Fe3+ in the presence of a number of metal cations, numerous anions and amino acids in purely aqueous medium with live cell imaging applications.
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Affiliation(s)
| | | | - Arindam Giri
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
| | - Atul Katarkar
- Department of Molecular & Human Genetics Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Mahammad Ali
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
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12
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Biophysical Effects of a Polymeric Biosurfactant in Candida krusei and Candida albicans Cells. Mycopathologia 2016; 181:799-806. [DOI: 10.1007/s11046-016-0054-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 08/18/2016] [Indexed: 11/27/2022]
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13
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Le Kim TH, Jun H, Kim JS, Nam YS. Stable nanoemulsions prepared via interfacial solidification of amphiphilic polyether–polyester block copolymers. J Colloid Interface Sci 2015; 443:197-205. [DOI: 10.1016/j.jcis.2014.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 12/03/2014] [Accepted: 12/04/2014] [Indexed: 11/27/2022]
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14
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Synthesis, Characterization and Cytotoxicity Evaluation of an Oleic Acid Derived Novel Bicephalous Dianionic Surfactant. J SURFACTANTS DETERG 2015. [DOI: 10.1007/s11743-015-1678-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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You X, Xing Q, Tuo J, Song W, Zeng Y, Hu H. Optimizing surfactant content to improve oral bioavailability of ibuprofen in microemulsions: Just enough or more than enough? Int J Pharm 2014; 471:276-84. [DOI: 10.1016/j.ijpharm.2014.05.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 04/22/2014] [Accepted: 05/19/2014] [Indexed: 11/30/2022]
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Sublethal Doses of Surfactants Induce Premature Senescence in Normal Human Skin Cells. Biosci Biotechnol Biochem 2014; 75:1395-8. [DOI: 10.1271/bbb.110179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kalhapure RS, Akamanchi KG. A novel biocompatible bicephalous dianionic surfactant from oleic acid for solid lipid nanoparticles. Colloids Surf B Biointerfaces 2013; 105:215-22. [DOI: 10.1016/j.colsurfb.2013.01.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Revised: 10/10/2012] [Accepted: 01/06/2013] [Indexed: 11/30/2022]
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18
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Silicone oil emulsions stabilized by semi-solid nanostructures entrapped at the interface. J Colloid Interface Sci 2010; 351:102-7. [DOI: 10.1016/j.jcis.2010.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 07/02/2010] [Accepted: 07/03/2010] [Indexed: 11/21/2022]
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19
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Chi Z, Liu R, Pan X, Teng Y, Qin H, Zhu J, Hao X. Investigation on the toxic interaction of chrysoidine hydrochloride-CTMAB combined contamination with calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:177-182. [PMID: 19897408 DOI: 10.1016/j.saa.2009.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Revised: 09/30/2009] [Accepted: 10/08/2009] [Indexed: 05/28/2023]
Abstract
The toxic interaction of the azo dye-chrysoidine hydrochloride combined with cetyltrimethyl ammonium bromide (CTMAB) in living tissue was studied in vitro. The absorption spectrum, resonance light scattering (RLS), circular dichroism (CD) and transmission electron microscopy (TEM) results showed that the toxicity of chrysoidine hydrochloride itself to calf thymus DNA (ct-DNA) is weak, while the chrysoidine hydrochloride-CTMAB combined pollution showed obvious toxic interaction with ct-DNA. The chrysoidine hydrochloride-CTMAB combined contamination can interact with ct-DNA to form an ion-associated complex through electrostatic and hydrophobic forces. The conformation of DNA was changed in the interaction process to show toxic. The experimental results showed that the combination of chrysoidine hydrochloride-CTMAB has higher toxicity to ct-DNA than either chrysoidine hydrochloride or CTMAB individually, and the combined pollution showed a strong toxic co-effect at a dose of 3.0x10(-4) mol L(-1) chrysoidine hydrochloride and 1.6x10(-5) mol L(-1) CTMAB.
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Affiliation(s)
- Zhenxing Chi
- School of Environmental Science and Engineering, Shandong University, Jinan, PR China
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20
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Noudeh GD, Khazaeli P, Mirzaei S, Sharififar F, Nasrollaho S. Determination of the Toxicity Effect of Sorbitan Esters Surfactants Group on Biological Membrane. ACTA ACUST UNITED AC 2009. [DOI: 10.3923/jbs.2009.423.430] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Garay-Jimenez JC, Gergeres D, Young A, Lim DV, Turos E. Physical properties and biological activity of poly(butyl acrylate-styrene) nanoparticle emulsions prepared with conventional and polymerizable surfactants. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2009; 5:443-51. [PMID: 19523413 DOI: 10.1016/j.nano.2009.01.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 01/16/2009] [Accepted: 01/21/2009] [Indexed: 11/18/2022]
Abstract
UNLABELLED Recent efforts in our laboratory have explored the use of polyacrylate nanoparticles in aqueous media as stable emulsions for potential applications in treating drug-resistant bacterial infections. These emulsions are made by emulsion polymerization of acrylated antibiotic compounds in a mixture of butyl acrylate and styrene (7:3 wt/wt) using sodium dodecyl sulfate as a surfactant. Prior work in our group established that the emulsions required purification to remove toxicity associated with extraneous surfactant present in the media. This article summarizes our investigations of poly(butyl acrylate-styrene) emulsions made using anionic, cationic, zwitterionic, and noncharged (amphiphilic) surfactants, as well as attachable surfactant monomers (surfmers), comparing the cytotoxicity and microbiological activity levels of the emulsion both before and after purification. Our results show that the attachment of a polymerizable surfmer onto the matrix of the nanoparticle neither improves nor diminishes cytotoxic or antibacterial effects of the emulsion, whether or not the emulsions are purified, and that the optimal properties are associated with the use of the nonionic surfactants versus those carrying anionic, cationic, or zwitterionic charge. Incorporation of an N-thiolated beta-lactam antibacterial agent onto the nanoparticle matrix via covalent attachment endows the emulsion with antibiotic properties against pathogenic bacteria such as methicillin-resistant Staphylococcus aureus, without changing the physical properties of the nanoparticles or their emulsions. FROM THE CLINICAL EDITOR Emulsions of polyacrylate nanoparticles, antibiotics and surfactants were studied using surfactant monomers as controls. Nonionic surfactants resulted in the most optimal properties. Incorporation of a beta-lactam antibacterial agent onto the nanoparticle matrix endowed the emulsion with antibiotic properties against methicillin-resistant Staphylococcus aureus (MRSA), a leading cause of hospital acquired, treatment-resistant infections including sepsis.
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Affiliation(s)
- Julio C Garay-Jimenez
- Center for Molecular Diversity in Drug Design, Discovery, and Delivery, Department of Chemistry, University of South Florida, Tampa, Florida, USA
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22
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Wong J, Brugger A, Khare A, Chaubal M, Papadopoulos P, Rabinow B, Kipp J, Ning J. Suspensions for intravenous (IV) injection: a review of development, preclinical and clinical aspects. Adv Drug Deliv Rev 2008; 60:939-54. [PMID: 18343527 DOI: 10.1016/j.addr.2007.11.008] [Citation(s) in RCA: 167] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2007] [Accepted: 11/28/2007] [Indexed: 12/30/2022]
Abstract
There has been growing interest in nanoparticles as an approach to formulate poorly soluble drugs. Besides enhanced dissolution rates, and thereby, improved bioavailability, nanoparticles can also provide targeting capabilities when injected intravenously. The latter property has led to increased research and development activities for intravenous suspensions. The first intravenously administered nanoparticulate product, Abraxane (a reformulation of paclitaxel), was approved by the FDA in 2006. Additional clinical trials have been conducted or are ongoing for multiple other indications such as oncology, infective diseases, and restenosis. This article reviews various challenges associated with developing intravenous nanosuspension dosage forms. In addition, various formulation considerations specific to intravenous nanosuspensions as well as reported findings from various clinical studies have been discussed.
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Affiliation(s)
- Joseph Wong
- Baxter Pharmaceuticals and Technologies, Global Research and Development, Baxter Healthcare Corporation, 25212 West Illinois Route 120, Round Lake, IL 60073-0490, USA.
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23
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Dehghan No G, Khazaeli P, Rahmani P. Study of the Effects of Polyethylene Glycol Sorbitan Esters Surfactants Group on Biological Membranes. INT J PHARMACOL 2007. [DOI: 10.3923/ijp.2008.27.33] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Chan E, Amon M, Marano RJ, Wimmer N, Kearns PS, Manolios N, Rakoczy PE, Toth I. Novel cationic lipophilic peptides for oligodeoxynucleotide delivery. Bioorg Med Chem 2007; 15:4091-7. [PMID: 17420133 DOI: 10.1016/j.bmc.2007.03.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Revised: 03/26/2007] [Accepted: 03/26/2007] [Indexed: 11/28/2022]
Abstract
In search of new oligodeoxynucleotide (ODN) delivery agents, we evaluated novel peptides derived from core peptide H-GLRILLLKV-OH (CP). CP is a fragment designed from the T-cell antigen receptor (TCR) alpha-chain transmembrane sequence. CP was able to enter cells including T-cells and inhibited interleukin-2 (IL-2) production. To examine the effect of increased lipophilicity on cellular uptake and activity of CP, a lipoamino acid (2-aminododecanoic acid) was incorporated into peptide CP resulting in 2-aminodecanoyl-CP (LP). The toxicity of CP and LP was assessed by measuring the haemolytic activity. Neither compound caused any haemolysis of red blood cells. We have also compared the biological activities of the CP and LP. Using a T-cell antigen presentation assay, the more lipophilic LP caused greater inhibition of IL-2 production than the parent CP in the antigen stimulated T-cells. The LP also showed increased permeability than CP in the Caco-2 cell assay. We utilised the enhanced cell permeability property of LP in oligodeoxynucleotide ODN1 delivery. Isothermal titration calorimetry (ITC) suggested that CP and LP complex with ODN1 in a 12:1 (CP:ODN1) and 15:1 (LP:ODN1) ratio. These complexes were then transfected into human retinal pigment epithelial cells. The level of transfection was measured by the decreased production of the protein human vascular endothelial growth factor (hVEGF). The results revealed greater transfection efficiency for both CP and LP (47%, 55% more inhibition) compared to commercially available transfection agent cytofectin GSV. These results suggested that the CP and particularly its lipophilic analogue LP have the potential to be used as oligodeoxynucleotide delivery systems.
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Affiliation(s)
- Enoch Chan
- School of Pharmacy, Griffith University, Gold Coast Campus, PMB 50 Gold Coast Mail Centre, QLD 9726, Australia
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25
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Lundberg D, Ljusberg-Wahren H, Norlin A, Holmberg K. Studies on dodecyl betainate in combination with its degradation products or with phosphatidyl choline–phase behavior and hemolytic activity. J Colloid Interface Sci 2004; 278:478-87. [PMID: 15450470 DOI: 10.1016/j.jcis.2004.06.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2003] [Accepted: 06/03/2004] [Indexed: 11/25/2022]
Abstract
Surface active betaine esters contain a hydrolysable bond and give naturally occurring products (fatty alcohol and the amino acid betaine) on degradation. They are therefore interesting candidates for use as cationic surfactants in pharmaceutical applications. In this work the phase behavior of two systems of relevance for the utilization of dodecyl betainate as a pharmaceutical excipient is studied, namely dodecyl betainate/dodecanol/betaine hydrochloride/D2O and dodecyl betainate/phosphatidyl choline (PC)/ethanol/D2O. The techniques used for phase characterisation were 2H NMR measured on the solvent, small angle X-ray spectroscopy and optical microscopy. Dilute dodecyl betainate/PC dispersions were characterized using laser diffraction. It is shown that introduction of relatively small amounts of the hydrolysis products of dodecyl betainate, i.e., dodecanol and betaine (used in the form of betaine hydrochloride), has a strong effect on the phase behavior of the binary dodecyl betainate/D2O system. The degradation products change the average curvature of the surfactant film so that, instead of a hexagonal phase at concentrations above the micellar phase, a probably defective, lamellar phase seems to form. The dodecyl betainate/PC/ethanol/D2O system shows a large region of a highly swelling lamellar phase. Dispersions of dodecyl betainate/PC/ethanol in water can be prepared with low energy input; i.e., the preconcentrate can be regarded as a self-dispersing solution. Introduction of dodecyl betainate and its degradation products does not impair the ability of PC to form vesicles. Experiments for evaluating the toxicity of surface active betaine esters to erythrocytes were also performed. There are indications that the hemolytic activity of dodecyl betainate is lower than that of the stable surfactant tetradecyltrimethylammonium chloride, which has similar critical micelle concentration. A combination of dodecyl betainate and PC gives very low hemolytic activity.
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Affiliation(s)
- D Lundberg
- Department of Materials and Surface Chemistry, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
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Cserháti T, Forgács E, Oros G. Biological activity and environmental impact of anionic surfactants. ENVIRONMENT INTERNATIONAL 2002; 28:337-348. [PMID: 12437283 DOI: 10.1016/s0160-4120(02)00032-6] [Citation(s) in RCA: 267] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The newest results concerning the biological activity and environmental fate of anionic surfactants are collected and critically evaluated. The chemical and physicochemical parameters related to the biological activity and the field of application are briefly discussed. Examples on the effect of anionic surfactants on the cell membranes, on the activity of enzymes, on the binding to various proteins and to other cell components and on their human toxicity are presented and the possible mode of action is elucidated. The sources of environmental pollution caused by anionic surfactants are listed and the methods developed for their removal from liquid, semiliquid and solid matrices are collected. Both the beneficial and adversary effects of anionic surfactants on the environment are reported and critically discussed. It was concluded that the role of anionic surfactants in the environment is ambiguous: they can cause serous environmental pollution with toxic effect on living organisms; otherwise, they can promote the decomposition and/or removal of other inorganic and organic pollutants from the environment. The relationship between their chemical structure, physicochemical parameters, biological activity and environmental impact is notwell understood. A considerable number of data are needed for the development of new anionic surfactants and for the successful application of the existing ones to reduce the adversary and to promote beneficial effects.
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Affiliation(s)
- Tibor Cserháti
- Institute of Chemistry, Chemical Research Centre, Hungarian Academy of Sciences, Budapest.
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