1
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Yue L, Yang K, Jiang F, Dong S, Yang K, Zhu D. Chemical profiling of principle active and toxic constituents in herbs containing aristolochic acids. CHINESE HERBAL MEDICINES 2024; 16:293-300. [PMID: 38706826 PMCID: PMC11064582 DOI: 10.1016/j.chmed.2023.02.008] [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: 11/11/2022] [Revised: 01/06/2023] [Accepted: 02/17/2023] [Indexed: 05/07/2024] Open
Abstract
Objective To clear the amounts of the principal active/toxic components in herbs containing aristolochic acids (HCAAs), which are still used as medicine and/or seasoning in many ethnic minority areas of China. Methods In this study, six major active and toxic components in HCAAs were extracted with ultrasonic extraction. With 6-O-methyl guanosine as internal standard, the target compounds were analyzed qualitatively and quantitatively by using ultrahigh performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UPLC-ESI-MS/MS) with multiple reaction monitoring-information dependent acquisition-enhanced production ion scanning mode (MRM-IDA-EPI) combined with dynamic background subtraction (DBS) function. Results The method showed good linearity in the linear range of the six analytes. The limit range of detection was from 0.01 ng/mL to 0.27 ng/mL. All of the detection repeatability, extraction repeatability and accuracy of the method were good. After extraction, the samples remained stable at 15 °C within 24 h. Six analytes were all found in samples except aristolactam (AL) in sample 2, and the contents varied greatly. The contents of these compounds decreased in fruits, leaves and stems of Aristolochia delavayi successively. Conclusion This method has the advantages of less sample dosage, simple operation, short analysis cycle, high sensitivity, specificity and accuracy. It laid a good foundation for guiding the safety of HCAAs, the in-depth study of pharmacological and toxicological effects and the scientific and standardized processing and compatibility of HCAAs.
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Affiliation(s)
- Lijun Yue
- School of Pharmacy, Minzu University of China, Beijing 100081, China
- Key Laboratory of Ethnomedicine Ministry of Education, Minzu University of China, Beijing 100081, China
| | - Kaijun Yang
- School of Pharmacy, Minzu University of China, Beijing 100081, China
- Key Laboratory of Ethnomedicine Ministry of Education, Minzu University of China, Beijing 100081, China
| | - Feng Jiang
- Hospital of Minzu University of China, Beijing 100081, China
| | - Shuai Dong
- School of Pharmacy, Minzu University of China, Beijing 100081, China
- Key Laboratory of Ethnomedicine Ministry of Education, Minzu University of China, Beijing 100081, China
| | - Kang Yang
- School of Pharmacy, Minzu University of China, Beijing 100081, China
- Key Laboratory of Ethnomedicine Ministry of Education, Minzu University of China, Beijing 100081, China
| | - Dan Zhu
- School of Pharmacy, Minzu University of China, Beijing 100081, China
- Key Laboratory of Ethnomedicine Ministry of Education, Minzu University of China, Beijing 100081, China
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2
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Wang C, Liu Y, Han J, Li W, Sun J, Wang Y. Detection and Removal of Aristolochic Acid in Natural Plants, Pharmaceuticals, and Environmental and Biological Samples: A Review. Molecules 2023; 29:81. [PMID: 38202664 PMCID: PMC10779802 DOI: 10.3390/molecules29010081] [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] [Received: 10/22/2023] [Revised: 12/17/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Aristolochic acids (AAs) are a toxic substance present in certain natural plants. Direct human exposure to these plants containing AAs leads to a severe and irreversible condition known as aristolochic acid nephropathy (AAN). Additionally, AAs accumulation in the food chain through environmental mediators can trigger Balkan endemic nephropathy (BEN), an environmental variant of AAN. This paper presents a concise overview of the oncogenic pathways associated with AAs and explores the various routes of environmental exposure to AAs. The detection and removal of AAs in natural plants, drugs, and environmental and biological samples were classified and summarized, and the advantages and disadvantages of the various methods were analyzed. It is hoped that this review can provide effective insights into the detection and removal of AAs in the future.
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Affiliation(s)
- Changhong Wang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (C.W.); (Y.L.); (J.H.)
| | - Yunchao Liu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (C.W.); (Y.L.); (J.H.)
| | - Jintai Han
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (C.W.); (Y.L.); (J.H.)
| | - Wenying Li
- College of Geography and Environment, Shandong Normal University, Jinan 250000, China;
| | - Jing Sun
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; (C.W.); (Y.L.); (J.H.)
| | - Yinan Wang
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-Scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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3
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Chin ML, Au CK, Chan CK, Jin L, Živković Stošić MZ, Đorđević Zlatković MR, Zlatković D, Pavlović NM, Chan W. Fabrication of a Simple and Efficient HPLC Reduction Column for Online Conversion of Aristolochic Acids to Aristolactams Prior to Sensitive Fluorescence Detection. Anal Chem 2023; 95:12365-12372. [PMID: 37565718 DOI: 10.1021/acs.analchem.3c01874] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Aristolochic acids (AAs) are nephrotoxic and carcinogenic nitrophenanthrene carboxylic acids produced naturally by plants from the Aristolochia and Asarum genera, which have been used extensively as herbal medicines. In addition to consuming AA-containing herbal medicinal products, there is emerging evidence that humans are also exposed to AA through the environment. In 2022, the World Health Organization (WHO) called for global action to remove AA exposure sources and to implement preventative measures against the development of AA-associated cancers. Herein, we report the development of a simple and efficient iron powder-packed reduction column that allows online post-column conversion of the nonfluorescing AA to its corresponding strongly fluorescing aristolactam (AL), facilitating the sensitive and selective detection of AA in herbal medicinal products, food grain, arable soil, or groundwater samples by high-performance liquid chromatography with fluorescence detection. Moreover, AL, a group of naturally occurring derivatives of AA that have demonstrated toxicity to cultured bacteria, human cells, and rats, is monitored and quantified simultaneously with AA in one single run without sacrificing sensitivity. In comparison with existing analytical methods for AA measurement, the newly developed method is not only inexpensive and less laborious, but it also offers improved sensitivity. We believe this novel method will find wide application in identifying the presence of AA in food, herbal medicines, and environmental samples, thus assisting in the identification and removal of AA exposure sources.
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Affiliation(s)
- Man-Lung Chin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Chun-Kit Au
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Chi-Kong Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Long Jin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
| | - Milena Z Živković Stošić
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Miljana R Đorđević Zlatković
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Dragan Zlatković
- Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | | | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong
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4
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Das S, Thakur S, Korenjak M, Sidorenko VS, Chung FFL, Zavadil J. Aristolochic acid-associated cancers: a public health risk in need of global action. Nat Rev Cancer 2022; 22:576-591. [PMID: 35854147 DOI: 10.1038/s41568-022-00494-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 11/09/2022]
Abstract
Aristolochic acids (AAs) are a group of naturally occurring compounds present in many plant species of the Aristolochiaceae family. Exposure to AA is a significant risk factor for severe nephropathy, and urological and hepatobiliary cancers (among others) that are often recurrent and characterized by the prominent mutational fingerprint of AA. However, herbal medicinal products that contain AA continue to be manufactured and marketed worldwide with inadequate regulation, and possible environmental exposure routes receive little attention. As the trade of food and dietary supplements becomes increasingly globalized, we propose that further inaction on curtailing AA exposure will have far-reaching negative effects on the disease trends of AA-associated cancers. Our Review aims to systematically present the historical and current evidence for the mutagenicity and carcinogenicity of AA, and the effect of removing sources of AA exposure on cancer incidence trends. We discuss the persisting challenges of assessing the scale of AA-related carcinogenicity, and the obstacles that must be overcome in curbing AA exposure and preventing associated cancers. Overall, this Review aims to strengthen the case for the implementation of prevention measures against AA's multifaceted, detrimental and potentially fully preventable effects on human cancer development.
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Affiliation(s)
- Samrat Das
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
| | - Shefali Thakur
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic
- Faculty of Science, Charles University, Prague, Czech Republic
| | - Michael Korenjak
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
| | - Viktoriya S Sidorenko
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, USA
| | - Felicia Fei-Lei Chung
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France.
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Petaling Jaya, Malaysia.
| | - Jiri Zavadil
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France.
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5
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Drăghia LP, Lukinich-Gruia AT, Oprean C, Pavlović NM, Păunescu V, Tatu CA. Aristolochic acid I: an investigation into the role of food crops contamination, as a potential natural exposure pathway. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:4163-4178. [PMID: 33796971 DOI: 10.1007/s10653-021-00903-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Aristolochic acid I (AAI) is a potent nephrotoxic and carcinogenic compound produced by plants of the Aristolochiaceae family and thoroughly investigated as a main culprit in the etiology of Balkan endemic nephropathy (BEN). So far, the AAI exposure was demonstrated to occur through the consumption of Aristolochia clematitis plants as traditional remedies, and through the contamination of the surrounding environment in endemic areas: soil, food and water contamination. Our study investigated for the first time the level of AAI contamination in 141 soil and vegetable samples from two cultivated gardens in non-endemic areas, A. clematitis being present in only one of the gardens. We developed and validated a simple and sensitive ultra-high-performance liquid chromatography-ion trap mass spectrometry method for qualitative and quantitative AAI analysis. The results confirmed the presence of AAI at nanogram levels in soil and vegetable samples collected from the non-endemic garden, where A. clematitis grows. These findings provide additional evidence that the presence of A. clematitis can cause food crops and soil contamination and unveil the pathway through which AAI could move from A. clematitis to other plant species via a common matrix: the soil. Another issue regarding the presence of AAI, in a non-endemic BEN area from Romania, could underlie a more widespread environmental exposure to AAI and explain certain BEN-like cases in areas where BEN has not been initially described.
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Affiliation(s)
- Lavinia Paula Drăghia
- Department of Functional Sciences, University of Medicine and Pharmacy 'Victor Babes', Eftimie Murgu Sq. 2, 300041, Timisoara, Romania.
- Department of Chemistry and Toxicology, OncoGen Centre, County Hospital 'Pius Branzeu', Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania.
| | - Alexandra Teodora Lukinich-Gruia
- Department of Chemistry and Toxicology, OncoGen Centre, County Hospital 'Pius Branzeu', Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania.
| | - Camelia Oprean
- Department of Chemistry and Toxicology, OncoGen Centre, County Hospital 'Pius Branzeu', Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
- Department of Environmental and Food Chemistry, Faculty of Pharmacy, University of Medicine and Pharmacy 'Victor Babes', Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
| | | | - Virgil Păunescu
- Department of Functional Sciences, University of Medicine and Pharmacy 'Victor Babes', Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
- Department of Chemistry and Toxicology, OncoGen Centre, County Hospital 'Pius Branzeu', Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
| | - Călin Adrian Tatu
- Department of Functional Sciences, University of Medicine and Pharmacy 'Victor Babes', Eftimie Murgu Sq. 2, 300041, Timisoara, Romania
- Department of Chemistry and Toxicology, OncoGen Centre, County Hospital 'Pius Branzeu', Blvd. Liviu Rebreanu 156, 300736, Timisoara, Romania
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6
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Xian Z, Tian J, Zhang Y, Meng J, Zhao Y, Li C, Yi Y, Han J, Liu S, Wang L, Pan C, Wang D, Wang F, Liang A. Study on the potential nephrotoxicity and mutagenicity of aristolochic acid IVa and its mechanism. Biomed Pharmacother 2021; 142:112081. [PMID: 34463271 DOI: 10.1016/j.biopha.2021.112081] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/01/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022] Open
Abstract
Previous reports demonstrated that aristolochic acids (AAs) exposure-induced nephrotoxicity, mutations, and tumorigenesis are mainly due to aristolochic acid I (AAI). Notably, the chemical structure of aristolochic acid IVa (AAIVa), which exists at higher levels in many Aristolochiaceae herbs, is extremely similar to AAI. In lack of toxicological data, it is unknown whether AAIVa exposure leads to aristolochic acid nephropathy (AAN), mutations, and tumorigenesis as of AAI. To answer these questions, mice were administered AAIVa by single or repeated long-term gavage, while AAI was used as a positive control. We found that single gavage of 40 mg/kg of AAIVa exhibited no obvious toxicity. Also, there were no tumors or death in mice administrated with 1 and 10 mg/kg of AAIVa for 6 months followed by a 12-month recovery time. There were no noteworthy alterations in gene mutation frequency in the kidney, liver, and stomach between the AAIVa and control mice. Fascinatingly, AA-associated mutational signatures, adenine-to-thymine (A>T) transversions, were absent in AAIVa-treated mice. Nonetheless, 10 mg/kg of AAIVa triggered lymphocytic infiltration and slight fibrous hyperplasia in the kidney at the 6th month; however, these were alleviated at the 12th and 18th months. On the contrary, AAI (positive control) caused severe diffuse fibrosis, tubular atrophy, necrosis, tumors in the forestomach and kidney, and death after the 6th month. It seems that long-term AAIVa exposure induced mild renal lesions could be due to the activation of the canonical or noncanonical transforming growth factor-β (TGFβ) pathway. Overall, these findings suggest that the mutagenicity and carcinogenic risk of AAIVa are very low.
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Affiliation(s)
- Zhong Xian
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jingzhuo Tian
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yushi Zhang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jing Meng
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yong Zhao
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Chunying Li
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yan Yi
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jiayin Han
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Suyan Liu
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lianmei Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Chen Pan
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Dunfang Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Fang Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Aihua Liang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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7
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Gao C, Zhang Q, Ma L, Lu X, Wu S, Song P, Xia L. Dual‐spectroscopic real‐time monitoring of the reduction reaction between aristolochic acid I and Fe
2+
and its bio‐application. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ce Gao
- Department of Chemistry Liaoning University Shenyang China
| | - Qijia Zhang
- Department of Chemistry Liaoning University Shenyang China
| | - Liping Ma
- Department of Chemistry Liaoning University Shenyang China
| | - Xuemei Lu
- Department of Physics Liaoning University Shenyang China
| | - Shiwei Wu
- Department of Chemistry Liaoning University Shenyang China
- Experimental Center Shenyang Normal University Shenyang China
| | - Peng Song
- Department of Physics Liaoning University Shenyang China
| | - Lixin Xia
- Department of Chemistry Liaoning University Shenyang China
- College of Chemistry and Environmental Engineering Yingkou Institute of Technology Yingkou China
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8
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Au CK, Zhang J, Chan CK, Li C, Liu G, Pavlović NM, Yao J, Chan W. Determination of Aristolochic Acids in Vegetables: Nephrotoxic and Carcinogenic Environmental Pollutants Contaminating a Broad Swath of the Food Supply and Driving Incidence of Balkan Endemic Nephropathy. Chem Res Toxicol 2020; 33:2446-2454. [DOI: 10.1021/acs.chemrestox.0c00229] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Cui Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Guorui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | | | - Jing Yao
- Department of Mathematics, Southern University of Science and Technology, Shenzhen 518055, China
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9
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Afshar-Mogaddam MR, Yadeghari A, Jouyban A. An Overview on Analytical Methods for Quantitative Determination of Aristolochic Acids. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666180704124213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Aristolochic acids are chemically linked to nitrophenanthrene carboxylic acids
which are found in aristolochia plants. These compounds are intrinsically carcinogenic, while they
have been used in traditional medicine from a long time ago. Despite the beneficial effects of herbals
for treating some diseases, they possess some side effects.
Methods:
Therefore, the development of a sensitive and selective procedure for the determination of
these harmful components in various complicated samples is an important task for health systems and
drug authorities. In the past years, ultra-pressure liquid chromatography, high performance liquid
chromatography and capillary electrophoresis with different detection systems were used for determination
of aristolochic acids in various samples.
Results:
In this review, different analytical methods have been discussed in brief and applications of
them in diverse samples have been summarized.
Conclusion:
Different approaches are compared from point of sensitivity, selectivity, and extraction
efficiency.
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Affiliation(s)
| | - Adeleh Yadeghari
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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10
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Chan CK, Chan KKJ, Pavlović NM, Chan W. Liquid chromatography-tandem mass spectrometry analysis of aristolochic acids in soil samples collected from Serbia: Link to Balkan endemic nephropathy. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34 Suppl 1:e8547. [PMID: 31392776 DOI: 10.1002/rcm.8547] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/04/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Over the past six decades, residents of farming villages in multiple countries of the Balkan peninsula have been suffering from a unique type of chronic renal disease, Balkan endemic nephropathy (BEN). It was speculated that environmental pollution by aristolochic acids (AAs) produced naturally by Aristolochia clematitis L., a weed that grows in the area, was causing the disease. However, the human exposure pathway to this class of phytotoxin remains obscure. Knowledge of the sink and stability of AAs in the environment would assist in the formulation of policy reducing exposure risk. METHODS Using our newly developed liquid chromatography/tandem mass spectrometry method of high sensitivity and selectivity, we analysed over 130 soil samples collected from cultivation fields in southern Serbia for the presence of AAs. The environmental stability of AAs was also investigated by incubating soil samples spiked with AAs at various temperatures. RESULTS The analysis detected AA-I in over two-fifths of the tested samples at sub-μg/kg to μg/kg levels, with higher concentrations observed in more acidic farmland soil. Furthermore, analysis of soil samples incubated at various temperatures revealed half-lives of over 2 months, indicating that AAs are relatively resistant to degradation. CONCLUSIONS Cultivation soil in southern Serbia is being extensively contaminated with AAs released from the decomposition of A. clematitis weeds. Since AAs are resistant to degradation, it is possible that AAs could have been taken up by root absorption and transported to the edible part of food crops. Prolonged exposure to AA-contaminated food grown from polluted soil could be one of the main aetiological mechanisms of BEN observed in the area.
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Affiliation(s)
- Chi-Kong Chan
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - K K Jason Chan
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | | | - Wan Chan
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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11
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Tung KK, Chan CK, Zhao Y, Chan KKJ, Liu G, Pavlović NM, Chan W. Occurrence and Environmental Stability of Aristolochic Acids in Groundwater Collected from Serbia: Links to Human Exposure and Balkan Endemic Nephropathy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:1554-1561. [PMID: 31884786 DOI: 10.1021/acs.est.9b05337] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Aristolochic acids (AAs) have been known as potent nephrotoxins since the use of AA-containing herbal medicines was linked with a series of sporadic renal fibrotic nephropathy cases, and yet an estimated 100 million people worldwide are still at risk today because of continued use of similar medicines. However, a similar nephropathic condition is endemic in the rural Balkan regions (e.g., Serbian farming villages) and AAs were again found to be the causative agents. In the case of this Balkan endemic nephropathy, AAs were found to have originated from a widespread local weed Aristolochia clematitis L. In this study, we tested the hypothesis that AAs released from decomposition of A. clematitis were also being leached into groundwater, thus polluting the drinking water of local residents. We initiated the study by developing a dispersive solid-phase extraction-based sample preparation method for water samples suspected of AA contamination. The validated method was then coupled with a liquid chromatography-tandem mass spectrometric method to measure AAs in groundwater samples collected from Serbia. Our study revealed for the first time that groundwater in Serbia is extensively contaminated with AA-I, at ng/L levels. Results also showed that AAs are long-lived water contaminants, with no observable concentration changes over a 2-month period of sample storage.
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Affiliation(s)
| | | | | | | | - Guorui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085 , China
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12
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Liu JL, Xu CL, Yang T, Hu ZR, Zhang ZQ, Feng GD. Developed a novel sensor based on fluorescent graft conjugated polymer for the determination of aristolochic acid in traditional Chinese medicine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117239. [PMID: 31202031 DOI: 10.1016/j.saa.2019.117239] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
A novel fluorescent graft conjugated polymer (poly (2, 5-bis (Polyethylene glycol oxybutyrate)-1, 4-phenylethynylene-alt-1, 4-phenyleneethynylene, PPE-OB-PEG) has been designed and synthesized for the determination of aristolochic acid (AA). The detection conditions and detection characters of PPE-OB-PEG were systematically explored in this work. The fluorescence intensity of PPE-OB-PEG changes with the different concentration of AA. PPE-OB-PEG has a good linear range towards AA from 1.00 × 10-7 to 8.00 × 10-5 mol L-1 and the limit of detection (LOD) is 3.00 × 10-8 mol L-1 (S/N = 3). PPE-OB-PEG have been applied to detect AA in traditional Chinese medicine samples and the results are satisfactory. The experimental results show that PPE-OB-PEG can be used as a fluorescence probe for rapid and sensitive detection of AA.
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Affiliation(s)
- Ji-Lin Liu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Chun-Ling Xu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130041, China
| | - Ting Yang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Zhi-Ru Hu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Zhi-Quan Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Guo-Dong Feng
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
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13
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Development of a novel liquid chromatography-tandem mass spectrometric method for aristolochic acids detection: Application in food and agricultural soil analyses. Food Chem 2019; 289:673-679. [DOI: 10.1016/j.foodchem.2019.03.073] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/11/2019] [Accepted: 03/16/2019] [Indexed: 12/25/2022]
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14
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Ouyang L, Zhang Q, Ma G, Zhu L, Wang Y, Chen Z, Wang Y, Zhao L. New Dual-Spectroscopic Strategy for the Direct Detection of Aristolochic Acids in Blood and Tissue. Anal Chem 2019; 91:8154-8161. [PMID: 31140784 DOI: 10.1021/acs.analchem.9b00442] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Aristolochic acids (AAs) contained in herbal plants are implicated in multiple organ injuries and have a high mutational burden in upper tract urothelial cancers. The currently available techniques for monitoring AAs include LC (liquid chromatography) and LC/MS (mass spectrometry), but the application of these approaches are limited due to the complex sample preparation and derivatization steps. Therefore, there is an urgent need to develop efficient methods for identifying and quantifying AAs. Here, we present a new dual-spectroscopic approach for the direct detection of AAs from blood and tissue samples; the detection of aristolochic acid I (AAI) is performed by surface-enhanced Raman spectroscopy (SERS), and its bioproduct, aristololactam (AAT), is detected by fluorescence spectroscopy based on their distinctive spectral response. Furthermore, a graphene assisted enrichment coupled with a magnetic retrieval strategy was developed to enhance SERS sensitivity toward AAI. Our method was successfully applied to directly determine both AAI and AAT from the blood, liver, and kidney of rats. The potential for real-world application was demonstrated by continuously monitoring AAI and AAT in rat blood and tissues after AAI feeding. The results showed that AAI was gradually metabolized to AAT and transported to different organs. It was found that the metabolism of AAI took place in the kidney, but AAT residue was detected in both liver and kidney, which might be related to long-term toxicity and gene mutation. The proposed dual-spectroscopic strategy is applicable to long-term toxicology research and to the direct diagnosis of AAI-induced organ injury.
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Affiliation(s)
- Lei Ouyang
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica , Huazhong University of Science and Technology , Wuhan 430074 , China.,Shenzhen Institute of Huazhong University of Science and Technology , Shenzhen 518000 , China
| | - Qian Zhang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China
| | - Guina Ma
- Radiology Department, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China
| | - Lihua Zhu
- School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica , Huazhong University of Science and Technology , Wuhan 430074 , China.,Shenzhen Institute of Huazhong University of Science and Technology , Shenzhen 518000 , China
| | - Youqin Wang
- Department of Pediatric, Renmin Hospital , Hubei University of Medicine , Shiyan 442000 , China
| | - Zhilin Chen
- Department of Infectious Diseases, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China
| | - Yuling Wang
- Department of Molecular Sciences , Macquarie University , Sydney , NSW 2109 , Australia
| | - Lei Zhao
- Department of Infectious Diseases, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , China
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15
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Li W, Chan CK, Liu Y, Yao J, Mitić B, Kostić EN, Milosavljević B, Davinić I, Orem WH, Tatu CA, Dedon PC, Pavlović NM, Chan W. Aristolochic Acids as Persistent Soil Pollutants: Determination of Risk for Human Exposure and Nephropathy from Plant Uptake. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11468-11476. [PMID: 30286603 PMCID: PMC6413692 DOI: 10.1021/acs.jafc.8b04770] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Exposure to aristolochic acids (AAs) from Aristolochia plants is one of the major global causes of nephropathy, including Balkan endemic nephropathy (BEN); renal failure; and urothelial cancer. The high incidence of BEN on the Balkan Peninsula is assumed to result from consumption of Aristolochia clematitis L. seeds coharvested with crops. Here, we show that AAs are long-lived soil contaminants that enter wheat and maize plants by root uptake with strong pH dependence. Soil and crops from Serbian farms in areas endemic for A. clematitis were found to be extensively contaminated with AAs, with contamination strongly correlated with local incidence of BEN. The persistence of AAs as soil contaminants suggests that weed control for A. clematitis plants is needed to reduce the incidence of BEN and aristolochic acid nephropathy, systematic surveys of soil and crop AA levels would identify high-risk regions, and it is imperative to research soil-remediation methods.
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Affiliation(s)
- Weiwei Li
- Dept. of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Chi-Kong Chan
- Dept. of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yushuo Liu
- Division of Environment & Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jing Yao
- Dept. of Mathematics, Southern University of Science and Technology, Shenzhen, China
| | | | | | | | - Ivana Davinić
- Serbian Medical Society, Branch Niš, 18000 Niš, Serbia
| | | | - Calin A. Tatu
- Department of Biology and Environmental Health, University of Medicine and Pharmacy “Victor Babes”, Eftimie Murgu Sq. 2, Timisoara, RO- 300041, Romania
| | - Peter C. Dedon
- Dept. of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Wan Chan
- Dept. of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- Division of Environment & Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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16
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Li W, Chan CK, Wong YL, Chan KKJ, Chan HW, Chan W. Cooking methods employing natural anti-oxidant food additives effectively reduced concentration of nephrotoxic and carcinogenic aristolochic acids in contaminated food grains. Food Chem 2018; 264:270-276. [PMID: 29853376 DOI: 10.1016/j.foodchem.2018.05.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/08/2018] [Accepted: 05/09/2018] [Indexed: 01/01/2023]
Abstract
Emerging evidence suggests that aristolochic acids (AA) produced naturally by a common weed Aristolochia clematitis in the cultivation fields is contaminating the food products in Balkan Peninsula and acting as the etiological agent in the development of Balkan endemic nephropathy. In this study, we investigated the combined use of natural anti-oxidative "food additives" and different cooking methods to find a solution for the widespread contamination of AA in food products. The results indicated that the addition of healthy dietary supplements (such as cysteine, glutathione, ascorbic acid, citric acid and magnesium) during cooking, is a highly efficient method in lowering the concentration of AA in the final food products. Because previous observation indicated one of the toxicological mechanisms by which AA exert its toxicity is to induce oxidative stress in internal organs, it is anticipated that these added anti-oxidants will also help to attenuate the nephrotoxicity of AA.
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Affiliation(s)
- Weiwei Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Chi-Kong Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yee-Lam Wong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - K K Jason Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ho Wai Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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17
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Mao WW, Gao W, Liang ZT, Li P, Zhao ZZ, Li HJ. Characterization and quantitation of aristolochic acid analogs in different parts of Aristolochiae Fructus, using UHPLC-Q/TOF-MS and UHPLC-QqQ-MS. Chin J Nat Med 2018; 15:392-400. [PMID: 28558875 DOI: 10.1016/s1875-5364(17)30060-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Indexed: 01/20/2023]
Abstract
Aristolochiae Fructus, a Chinese herbal medicine derived from the fruit of Aristolochia contorta Bge., contains nephrotoxic aristolochic acid analogues (AAAs). According to ancient medical texts, various medicinal parts of the fruit of A. contorta were ever used. In order to reveal which part could be safely and effectively used, it is necessary to analyze the chemical profiles of different medicinal parts. Herein we compared the chemical compositions and determined aristolochic acid I (AA-I) and aristolochic acid II (AA-II) in the four parts viz. outer pericarp, inner pericarp, septum, and seed. Ultra-high performance liquid chromatography equipped with quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) was applied for chemical profiling. Ultra-high performance liquid coupled with triple quadrupole mass spectrometry (UHPLC-QqQ-MS) was employed to quantify AA-I and AA-II in different parts. It was found that the chemical compositions of the four parts varied both qualitatively and quantitatively. A total of 10 AAAs, including 5 aristolochic acids and 5 aristolactams, together with 3 alkaloids, were unambiguously or tentatively identified by UHPLC-QTOF-MS. The quantitatively analytical results obtained by UHPLC-QqQ-MS showed that AA-I and AA-II exclusively accumulate in the seeds of A. contorta. These findings provide supporting data for the rational selection of medicinal parts.
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Affiliation(s)
- Wen-Wen Mao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Wen Gao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Zhi-Tao Liang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Zhong-Zhen Zhao
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China.
| | - Hui-Jun Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
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18
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Hu Y, Wu HL, Yin XL, Gu HW, Xiao R, Wang L, Fang H, Yu RQ. Interference-free spectrofluorometric quantification of aristolochic acid I and aristololactam I in five Chinese herbal medicines using chemical derivatization enhancement and second-order calibration methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 175:229-238. [PMID: 28040573 DOI: 10.1016/j.saa.2016.12.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/12/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
A rapid interference-free spectrofluorometric method combined with the excitation-emission matrix fluorescence and the second-order calibration methods based on the alternating penalty trilinear decomposition (APTLD) and the self-weighted alternating trilinear decomposition (SWATLD) algorithms, was proposed for the simultaneous determination of nephrotoxic aristolochic acid I (AA-I) and aristololactam I (AL-I) in five Chinese herbal medicines. The method was based on a chemical derivatization that converts the non-fluorescent AA-I to high-fluorescent AL-I, achieving a high sensitive and simultaneous quantification of the analytes. The variables of the derivatization reaction that conducted by using zinc powder in acetose methanol aqueous solution, were studied and optimized for best quantification results of AA-I and AL-I. The satisfactory results of AA-I and AL-I for the spiked recovery assay were achieved with average recoveries in the range of 100.4-103.8% and RMSEPs <0.78ngmL-1, which validate the accuracy and reliability of the proposed method. The contents of AA-I and AL-I in five herbal medicines obtained from the proposed method were also in good accordance with those of the validated LC-MS/MS method. In light of high sensitive fluorescence detection, the limits of detection (LODs) of AA-I and AL-I for the proposed method compare favorably with that of the LC-MS/MS method, with the LODs <0.35 and 0.29ngmL-1, respectively. The proposed strategy based on the APTLD and SWATLD algorithms by virtue of the "second-order advantage", can be considered as an attractive and green alternative for the quantification of AA-I and AL-I in complex herbal medicine matrices without any prior separations and clear-up processes.
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Affiliation(s)
- Yong Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Hai-Long Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China.
| | - Xiao-Li Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Hui-Wen Gu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Rong Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Li Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Huan Fang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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19
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Abdullah R, Diaz LN, Wesseling S, Rietjens IMCM. Risk assessment of plant food supplements and other herbal products containing aristolochic acids using the margin of exposure (MOE) approach. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2016; 34:135-144. [PMID: 27892830 DOI: 10.1080/19440049.2016.1266098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
After the incidences of induction of aristolochic acid nephropathy after consumption of herbal weight loss preparations that accidentally contained aristolochic acids (AAs), several countries defined national restrictions on the presence of AAs in food, including plant food supplements (PFS) and herbal products. This study investigates whether the risks associated with exposure to AAs via PFS and herbal products are at present indeed negligible. Data reported in literature on AA levels in PFS and other herbal products and also obtained from a new series of PFS in the present study were used to calculate the estimated daily intakes (EDIs) and corresponding margins of exposure (MOEs). Available literature data revealed that 206 out of 573 samples were found to contain aristolochic acid I (AAI) and/or aristolochic acid II (AAII). The results obtained from recently collected PFS revealed that both AAI and AAII were detected in three out of 18 analysed PFS at levels up to 594.8 and 235.3 µg g-1, respectively, being in line with the levels reported in literature. The EDIs resulting from intake of these PFS resulted in MOEs that were generally below 10,000, corroborating the priority for risk management. Although these results refer to PFS collected by targeted sampling strategies, the data reveal that AA-containing PFS are still freely available. When considering that the use of these samples may be limited to shorter periods of time, the EDIs might be lower, but MOE values would still be lower than 10,000 for more than 50% of the AA-containing PFS and herbal products. In conclusion, the presence of AAs in PFS and herbal products even several years after instalment of the legal restrictions still raises concern, especially for people who frequently use the respective PFS and herbal products.
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Affiliation(s)
- Rozaini Abdullah
- a Division of Toxicology , Wageningen University , Wageningen , the Netherlands.,b Department of Environmental & Occupational Health, Faculty of Medicine and Health Sciences , Universiti Putra Malaysia UPM , Serdang , Selangor , Malaysia
| | - Leolean Nyle Diaz
- a Division of Toxicology , Wageningen University , Wageningen , the Netherlands
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20
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Analysis of aristolochic acids, aristololactams and their analogues using liquid chromatography tandem mass spectrometry. Chin J Nat Med 2016; 14:626-40. [DOI: 10.1016/s1875-5364(16)30074-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Indexed: 11/17/2022]
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21
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Chan W, Pavlović NM, Li W, Chan CK, Liu J, Deng K, Wang Y, Milosavljević B, Kostić EN. Quantitation of Aristolochic Acids in Corn, Wheat Grain, and Soil Samples Collected in Serbia: Identifying a Novel Exposure Pathway in the Etiology of Balkan Endemic Nephropathy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5928-5934. [PMID: 27362729 DOI: 10.1021/acs.jafc.6b02203] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
While to date investigations provided convincing evidence on the role of aristolochic acids (AAs) in the etiology of Balkan endemic nephropathy (BEN) and upper urothelial cancer (UUC), the exposure pathways by which AAs enter human bodies to cause BEN and UUC remain obscure. The goal of this study is to test the hypothesis that environmental pollution by AAs and root uptake of AAs in the polluted soil may be one of the pathways by which AAs enter the human food chain. The hypothesis driving this study was that the decay of Aristolochia clematitis L., a AA-containing herbaceous plant that is found growing widespread in the endemic regions, could release free AAs to the soil, which could be taken up by food crops growing nearby, thereby transferring this potent human nephrotoxin and carcinogen into their edible parts. Using the highly sensitive and selective high-performance liquid chromatography coupled with fluorescence detection method, we identified and quantitated in this study for the first time AAs in corn, wheat grain, and soil samples collected from the endemic village Kutles in Serbia. Our results provide the first direct evidence that food crops and soil in the Balkans are contaminated with AAs. It is possible that the presence of AAs in edible parts of crops originating from the AA-contaminated soil could be one of the major pathways by which humans become exposed to AAs.
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Affiliation(s)
| | | | | | | | | | | | | | - Biljana Milosavljević
- Institute for Forensic Medicine Medical Faculty, University of Niš , 18000 Niš, Serbia
| | - Emina N Kostić
- Clinic of Nephrology, Clinical Center Niš , 18000 Niš, Serbia
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22
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Li W, Hu Q, Chan W. Uptake and Accumulation of Nephrotoxic and Carcinogenic Aristolochic Acids in Food Crops Grown in Aristolochia clematitis-Contaminated Soil and Water. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:107-112. [PMID: 26654710 DOI: 10.1021/acs.jafc.5b05089] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Emerging evidence has suggested aristolochic acids (AAs) are linked to the development of Balkan endemic nephropathy (BEN), a chronic renal disease affecting numerous farmers living in the Balkan peninsula. However, the pathway by which AAs enter the human food chain and cause kidney disease remains poorly understood. Using our previously developed analytical method with high sensitivity and selectivity (Chan, W.; Lee, K. C.; Liu, N.; Cai, Z. J. Chromatogr. A 2007, 1164, 113-119), we quantified AAs in lettuce, tomato, and spring onion grown in AA-contaminated soil and culture medium. Our study revealed that AAs were being taken up from the soil and bioaccumulated in food crops in a time- and dose-dependent manner. To the best of our knowledge, this study is the first to identify one of the possible pathways by which AAs enter our food chain to cause chronic food poisoning. Results also demonstrated that AAs were resistant to the microbial activity of the soil/water.
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Affiliation(s)
- Weiwei Li
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Qin Hu
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong SAR, China
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23
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Li W, Hu Q, Chan W. Mass Spectrometric and Spectrofluorometric Studies of the Interaction of Aristolochic Acids with Proteins. Sci Rep 2015; 5:15192. [PMID: 26471474 PMCID: PMC4608009 DOI: 10.1038/srep15192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/21/2015] [Indexed: 01/04/2023] Open
Abstract
Aristolochic acid (AA) is a potent carcinogen and nephrotoxin and is associated with the development of "Chinese herb nephropathy" and Balkan endemic nephropathy. Despite decades of research, the specific mechanism of the observed nephrotoxicity has remained elusive and the potential effects on proteins due to the observed toxicity of AA are not well-understood. To better understand the pharmacotoxicological features of AA, we investigated the non-covalent interactions of AA with proteins. The protein-binding properties of AA with bovine serum albumin (BSA) and lysozyme were characterized using spectrofluorometric and mass spectrometric (MS) techniques. Moreover, the protein-AA complexes were clearly identified by high-resolution MS analyses. To the best of our knowledge, this is the first direct evidence of non-covalently bound protein-AA complexes. An analysis of the spectrofluorometric data by a modified Stern-Volmer plot model also revealed that both aristolochic acid I (AAI) and aristolochic acid II (AAII) were bound to BSA and lysozyme in 1:1 stoichiometries. A significantly stronger protein binding property was observed in AAII than in AAI as evidenced by the spectrofluorometric and MS analyses, which may explain the observed higher mutagenicity of AAII.
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Affiliation(s)
- Weiwei Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Qin Hu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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24
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Deng K, Wong TY, Wang Y, Leung EMK, Chan W. Combination of precolumn nitro-reduction and ultraperformance liquid chromatography with fluorescence detection for the sensitive quantification of 1-nitronaphthalene, 2-nitrofluorene, and 1-nitropyrene in meat products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:3161-3167. [PMID: 25763600 DOI: 10.1021/acs.jafc.5b00523] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Carcinogenic nitropolycyclic aromatic hydrocarbons (nitro-PAHs) are ubiquitous in the ambient environment. They are emitted predominantly from internal combustion engines and by reacting polycyclic aromatic hydrocarbons with nitrogen oxide. The emerging evidence that nitro-PAHs are taken up by plants and bioaccumulatd in the food chain has aroused worldwide concerns for the potential of chronic poisoning through dietary intake. Therefore, analytical methods of high sensitivity are extremely important for assessing the risk of human exposure to nitro-PAHs. This paper describes the development of a simple and robust ultraperformance liquid chromatography coupled fluorescence detector (UPLC-FLD) method for the sensitive determination of nitro-PAHs in meat products. The method entails precolumn reduction of the otherwise nonfluorescent nitro-PAHs to amino-PAHs which strongly fluoresce for their determination by UPLC-FLD analysis. The developed method was validated for extraction efficiency, accuracy, precision, and detection limit and has been successfully applied in quantifying 1-nitronaphthalene (1-NN), 2-nitrofluorene (2-NF), and 1-nitropyrene (1-NP) in fresh and cured meat products. The results showed that the combination of Fe/H(+)-induced nitro-reduction and UPLC-FLD analysis allows sensitive quantification of 1-NN, 2-NF, and 1-NP at detection limits of 0.59, 0.51, and 0.31 μg/kg, respectively, which is at least 10 times lower than those of the existing analytical methods.
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Affiliation(s)
- Kailin Deng
- †Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
| | - Tin-Yan Wong
- †Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
| | - Yinan Wang
- †Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
| | - Elvis M K Leung
- †Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
| | - Wan Chan
- †Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
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25
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Leung EMK, Chan W. Quantification of aristolochic acid-RNA adducts in the urine of aristolochic acid-treated rats by liquid chromatography-tandem mass spectrometry. Chem Res Toxicol 2015; 28:567-9. [PMID: 25715065 DOI: 10.1021/acs.chemrestox.5b00021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Balkan endemic nephropathy (BEN) is a peculiar renal disease affecting thousands of farmers living in the suburban areas of the Balkan countries. Emerging evidence suggested that BEN is an environmental disease caused by chronic food poisoning with aristolochic acid (AA). We have developed a sensitive liquid chromatography-tandem mass spectrometry method to detect urinary RNA-AA adducts. Results revealed high levels of RNA-AA adducts in the urine samples collected from AA-treated rats. To the best of our knowledge, this study is the first to report on the detection of urinary RNA-AA adducts. Compared with previous studies that quantified DNA-AA adducts, this method is more sensitive and user-friendly.
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Affiliation(s)
- Elvis M K Leung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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26
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Leung EMK, Chan W. Comparison of DNA and RNA Adduct Formation: Significantly Higher Levels of RNA than DNA Modifications in the Internal Organs of Aristolochic Acid-Dosed Rats. Chem Res Toxicol 2015; 28:248-55. [DOI: 10.1021/tx500423m] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Elvis M. K. Leung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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27
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Yun BH, Sidorenko VS, Rosenquist TA, Dickman KG, Grollman AP, Turesky RJ. New Approaches for Biomonitoring Exposure to the Human Carcinogen Aristolochic Acid. Toxicol Res (Camb) 2015; 4:763-776. [PMID: 26366284 DOI: 10.1039/c5tx00052a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Aristolochic acids (AA) are found in all Aristolochia herbaceous plants, many of which have been used worldwide for medicinal purposes for centuries. AA are causal agents of the chronic kidney disease entity termed aristolochic acid nephropathy (AAN) and potent upper urinary tract carcinogens in humans. AAN and upper urinary tract cancers are endemic in rural areas of Croatia and other Balkan countries where exposure to AA occurs through the ingestion of home-baked bread contaminated with Aristolochia seeds. In Asia, exposure to AA occurs through usage of traditional Chinese medicinal herbs containing Aristolochia. Despite warnings from regulatory agencies, traditional Chinese herbs containing AA continue to be used world-wide. In this review, we highlight novel approaches to quantify exposure to AA, by analysis of aristolactam (AL) DNA adducts, employing ultraperformance liquid chromatography-electrospray ionization/multistage mass spectrometry (UPLC-ESI/MSn). DNA adducts are a measure of internal exposure to AA and serve as an important end point for cross-species extrapolation of toxicity data and human risk assessment. The level of sensitivity of UPLC-ESI/MSn surpasses the limits of detection of AL-DNA adducts obtained by 32P-postlabeling techniques, the most widely employed methods for detecting putative DNA adducts in humans. AL-DNA adducts can be measured by UPLC-ESI/MS3, not only in fresh frozen renal tissue, but also in formalin-fixed, paraffin-embedded (FFPE) samples, an underutilized biospecimen for assessing chemical exposures, and in exfoliated urinary cells, a non-invasive approach. The frequent detection of AL DNA adducts in renal tissues, combined with the characteristic mutational spectrum induced by AA in TP53 and other genes provides compelling data for a role of AA in upper urothelial tract cancer.
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Affiliation(s)
- Byeong Hwa Yun
- Masonic Cancer Center and Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Viktoriya S Sidorenko
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA
| | - Thomas A Rosenquist
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA
| | - Kathleen G Dickman
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA ; Department of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Arthur P Grollman
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA ; Department of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Robert J Turesky
- Masonic Cancer Center and Department of Medicinal Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
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28
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Leung EMK, Chan W. Noninvasive measurement of aristolochic acid-DNA adducts in urine samples from aristolochic acid-treated rats by liquid chromatography coupled tandem mass spectrometry: evidence for DNA repair by nucleotide-excision repair mechanisms. Mutat Res 2014; 766-767:1-6. [PMID: 25847264 DOI: 10.1016/j.mrfmmm.2014.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 05/17/2014] [Accepted: 05/22/2014] [Indexed: 06/04/2023]
Abstract
Nephrotoxic aristolochic acids (AAs) form covalently bonded DNA adducts upon metabolic activation. In this work, a non-invasive approach to detect AAs exposure by quantifying urinary excreted DNA-AA adducts is presented. The developed method entails solid-phase extraction (SPE) enrichment of the urine-excreted DNA-AAs adducts, addition of internal standard, and quantification by liquid chromatography coupled tandem mass spectrometric (LC-MS/MS) analysis. Quantitative analysis revealed 7-(deoxyadenosine-N(6)-yl)-aristolactam II and 7-(deoxyguanosine-N(2)-yl)-aristolactam I that were previously detected as major DNA-AA adducts in different organs of AA-dosed rats, were detected as the major urine excreted adducts. Lower levels of 7-(deoxyadenosine-N(6)-yl)-aristolactam I and 7-(deoxyguanosine-N(2)-yl)-aristolactam II were also detected in the collected urine samples. The identities of the detected urinary DNA-AA adducts were confirmed by comparing chromatographic retention time with synthetic standards, by high-accuracy MS, and MS/MS analyses. LC-MS/MS analysis of the urine samples collected from the AAs-dosed rats demonstrated a time-dependent decrease in the urinary adduct levels, indicating the urinary DNA-AA adduct levels were reflective of the tissue adduct levels. It is expected that the developed approach of detecting urinary DNA-AA adducts will facilitate further carcinogenesis investigations of AAs.
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Affiliation(s)
- Elvis M K Leung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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29
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Wang Y, Chan W. Determination of aristolochic acids by high-performance liquid chromatography with fluorescence detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:5859-5864. [PMID: 24920127 DOI: 10.1021/jf501609j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nephrotoxic and carcinogenic aristolochic acids (AAs) are naturally occurring nitrophenanthrene carboxylic acids in the herbal genus Aristolochia. The misuse of AA-containing herbs in preparing slimming drugs has caused hundred of cases of kidney disease in Belgium women in a slimming regime in the early 1990s. Accumulating evidence also suggested that prolong dietary intake of AA-contaminated food is one of the major causes to the Balkan endemic nephropathy that was first observed in the late 1950s. Therefore, analytical methods of high sensitivity are extremely important for safeguarding human exposure to AA-containing herbal medicines, herbal remedies, and food composites. In this paper, we describe the development of a new high-performance liquid chromatography coupled fluorescence detector (HPLC-FLD) method for the sensitive determination of AAs. The method makes use of a novel cysteine-induced denitration reaction that "turns on" the fluorescence of AAs for fluorometric detections. Our results showed that the combination of cysteine-induced denitration and HPLC-FLD analysis allows for sensitive quantification of AA-I and AA-II at detection limits of 27.1 and 25.4 ng/g, respectively. The method was validated and has been successfully applied in quantifying AAs in Chinese herbal medicines.
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Affiliation(s)
- Yinan Wang
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
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30
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Xu YQ, Li XW, Liu GX, Wang X, Shang MY, Li XM, Cai SQ. Comparative study of the contents of analogues of aristolochic acid in two kinds of Aristolochiae Fructus by high-performance liquid chromatography. J Nat Med 2012; 67:113-22. [PMID: 22484602 DOI: 10.1007/s11418-012-0664-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Accepted: 03/07/2012] [Indexed: 11/30/2022]
Abstract
Aristolochiae Fructus ("Madouling") is derived from the fruits of Aristolochia contorta and A. debilis (Aristolochiaceae). These two species contain potentially nephrotoxic constituents, but are officially used in China. Distinction of constituents and toxicity between these two species remains unclear. A high-performance liquid chromatography method was developed and validated for the simultaneous determination of seven analogues of aristolochic acid (aristolochic acids I, II, IIIa, IVa and VIIa), as well as aristololactams I and II in Aristolochiae Fructus. Chromatographic separation was achieved on a Zorbax SB-C(18) column with a gradient mobile phase comprising acetonitrile and 1 % acetic acid-30 mM triethylamine (20:1, v/v) buffer. Analytes were detected with a diode array detector at 250 and 260 nm. The contents of seven constituents in samples (11 batches of A. contorta fruits, 15 batches of A. debilis fruits and 33 commercial samples of Madouling) were determined. The content of aristolochic acid IVa was higher than that of aristolochic acid VIIa in A. contorta fruits, whereas the opposite was true in A. debilis fruits. This feature can be used to distinguish the two species from each other and identify the resource plant of Madouling. Through a morphological method and a newly found principle based on the ratio AA-IVa/AA-VIIa, we found that the 33 commercial samples collected from 12 provinces in China were all derived from the fruits of A. contorta.
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Affiliation(s)
- Yu-Qiong Xu
- School of Pharmaceutical Sciences, Peking University, Beijing, People's Republic of China
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31
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Interaction studies of aristolochic acid I with human serum albumin and the binding site of aristolochic acid I in subdomain IIA. Int J Biol Macromol 2011; 49:343-50. [DOI: 10.1016/j.ijbiomac.2011.05.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 05/12/2011] [Accepted: 05/16/2011] [Indexed: 02/06/2023]
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32
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Chiang SY, Shih WC, Liao HT, Shu PC, Wey MT, Huang HF, Wu KY. Analysis of urinary aristolactams by on-line solid-phase extraction coupled with liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:2494-500. [DOI: 10.1016/j.jchromb.2011.06.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Revised: 06/27/2011] [Accepted: 06/29/2011] [Indexed: 01/29/2023]
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33
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Zhou T, Xiao XH, Wang JY, Chen JL, Xu XF, He ZF, Li GK. Evaluation of microwave-assisted extraction for aristolochic acid from Aristolochiae Fructus by chromatographic analysis coupled with nephrotoxicity studies. Biomed Chromatogr 2011; 26:166-71. [PMID: 21538418 DOI: 10.1002/bmc.1642] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2010] [Revised: 03/18/2011] [Accepted: 03/21/2011] [Indexed: 11/09/2022]
Abstract
In this paper, a microwave-assisted extraction (MAE) method was established for aristolochic acid-I from Aristolochiae Fructus, and the advantage of MAE was evaluated by chromatographic analysis coupled with nephrotoxicity studies. The experimental parameters of MAE for aristolochic acid-I in Aristolochiae Fructus were investigated and MAE was compared with Soxhlet extraction and ultrasound-assisted extraction in terms of extraction yields and extraction conditions. Under the optimum conditions, MAE could provide higher extraction yields of aristolochic acid-I (1.10 mg/g) than ultrasound-assisted extraction (0.82 mg/g) and Soxhlet extraction (0.95 mg/g), in addition to using less solvent and having a shorter extraction time. Furthermore, the nephrotoxicities of the extracts of Aristolochiae Fructus from different extraction procedures were investigated in Sprague-Dawley rats. The results of nephrotoxicity studies of, for example, general conditions, biochemistry parameters and histopathology examination showed no significantly differences in the nephrotoxicity levels of the extracts from MAE and that from Soxhlet extraction. These results indicated that MAE technique is a simple, rapid and effective extraction method, and the microwave irradiation during MAE procedure did not have any influence on the nephrotoxicity of Aristolochiae Fructus compared with Soxhlet extraction.
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Affiliation(s)
- Ting Zhou
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
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34
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Heaton J, Whiley L, Hong Y, Mary Sebastian C, William Smith N, Legido-Quigley C. Evaluation of Chinese medicinal herbs fingerprinting by HPLC-DAD for the detection of toxic aristolochic acids. J Sep Sci 2011; 34:1111-5. [DOI: 10.1002/jssc.201000905] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/11/2011] [Accepted: 02/14/2011] [Indexed: 11/06/2022]
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35
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Yang Y, Chen J, Shi YP. Determination of aristolochic acid in urine using hollow fiber liquid-phase microextraction combined with high-performance liquid chromatography. Biomed Chromatogr 2011; 24:1350-5. [PMID: 21077254 DOI: 10.1002/bmc.1448] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A simple and efficient hollow fiber liquid-phase microextraction (HF-LPME) technique in conjunction with high-performance liquid chromatography is presented for extraction and quantitative determination of aristolochic acid I in human urine samples. Several parameters influencing the efficiency of HF-LPME were investigated and optimized, including extraction solvent, stirring rate, extraction time, pH of donor phase and acceptor phase. Excellent sample clean-up was observed and good linearity with coefficient of 0.9999 was obtained in the range of 15.4-960 µg/L. This method provided a 230-fold enrichment factor and good repeatability with relative standard deviations (RSD) lower than 6.0%. The limit of detection value for the analyte in urine sample was 0.01 µg/L at a signal-to-noise ratio of 3. The extraction recovery from urine samples was 61.8% with an RSD of 9.71%.
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Affiliation(s)
- Yang Yang
- Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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36
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Guo L, Yue H, Cai Z. A novel pre-column fluorescent derivatization method for the sensitive determination of aristolochic acids in medicinal herbs by high-performance liquid chromatography with fluorescence detection. J Pharm Biomed Anal 2010; 53:37-42. [DOI: 10.1016/j.jpba.2010.03.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Revised: 03/06/2010] [Accepted: 03/11/2010] [Indexed: 10/19/2022]
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37
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Simple and rapid analysis of aristolochic acid contained in crude drugs and Kampo formulations with solid-phase extraction and HPLC photodiode-array detection. J Nat Med 2009; 63:451-8. [DOI: 10.1007/s11418-009-0353-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Accepted: 07/21/2009] [Indexed: 11/25/2022]
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38
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Yue H, Chan W, Guo L, Cai Z. Determination of aristolochic acid I in rat urine and plasma by high-performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:995-9. [DOI: 10.1016/j.jchromb.2009.02.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Revised: 02/16/2009] [Accepted: 02/18/2009] [Indexed: 10/21/2022]
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39
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A new approach for the sensitive determination of DNA adduct of aristolochic acid II by using high-performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:848-52. [DOI: 10.1016/j.jchromb.2009.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 11/27/2008] [Accepted: 02/04/2009] [Indexed: 11/23/2022]
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40
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Gao H, Guo F, Feng F, Yin J, Song M, Wang H. Improved preparation and identification of aristolochic acid-DNA adducts by solid-phase extraction with liquid chromatography-tandem mass spectrometry. J Environ Sci (China) 2009; 21:1769-1776. [PMID: 20131611 DOI: 10.1016/s1001-0742(08)62486-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Aristolochic acid (AA) is a known nephrotoxin and potential carcinogen, which can form covalent DNA adducts after metabolic activation in vivo and in vitro. A simple method for preparation and characterization of aristolochic acid-DNA adducts was developed. Four AA-adducts were synthesized by a direct reaction of AAI/AAII with 2'-deoxynucleosides. The reaction mixture was first cleaned-up and pre-concentrated using solid phase extraction (SPE), and further purified by a reversed-phase high performance liquid chromatography (HPLC). By the application of developed SPE procedure, matrices and byproducts in reaction mixture could be greatly reduced and adducts of high purity (more than 94% as indicated by HPLC) were obtained. The purified AA-DNA adducts were identified and characterized with liquid-electrospray ionization-quadrupole-time of flight-mass spectrometry (LC-ESI-Q-TOF-MS/MS) and LC-Diode array detector-fluorescence (LC-DAD-FL) analysis. This work provides a robust tool for possible large-scale preparation of AA-DNA adduct standards, which can promote the further studies on carcinogenic and mutagenic mechanism of aristolochic acids.
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Affiliation(s)
- Haiyan Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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41
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Liu Y, Lin A, Wu Z, Ou R, Huang H. A liquid chromatography/tandem mass spectrometry method for determination of aristolochic acid-I in rat plasma. Biomed Chromatogr 2009; 24:174-9. [DOI: 10.1002/bmc.1267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Chan W, Yue H, Wong RNS, Cai Z. Characterization of the DNA adducts induced by aristolochic acids in oligonucleotides by electrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2008; 22:3735-3742. [PMID: 18973202 DOI: 10.1002/rcm.3791] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Metabolic activation of carcinogenic aristolochic acids (AA) produces reactive aristolactam-nitrenium ion intermediates. Electrophilic attack of the aristolactam-nitrenium ion via its C7 position to the exocyclic amino group in the purine bases leads to the formation of DNA adducts. DNA-binding assays have demonstrated that carcinogens show site- and sequence-specificity and the biological consequence is defined by the nature of binding as well as their position in the genome. In this study, electrospray ionization tandem mass spectrometry was applied for the identification and position mapping of DNA adducts in oligonucleotides (ODNs). The developed method was successfully applied for the analysis of unmodified and AA-modified ODNs (5'-TTTATT-3', 5'-TTTGTT-3' and 5'-TACATGTGT-3'). The observation of the modified bases (modified adenine and guanine) together with the complementary product ions ([a(n)-B*(n)](-), w(-)) from the cleavage of the 3' C--O bond adjacent to the modified base in MS/MS analyses readily enabled the identification of the AA-binding site in ODNs.
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Affiliation(s)
- Wan Chan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong SAR, China
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43
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Chan W, Yue H, Poon WT, Chan YW, Schmitz OJ, Kwong DWJ, Wong RNS, Cai Z. Quantification of aristolochic acid-derived DNA adducts in rat kidney and liver by using liquid chromatography-electrospray ionization mass spectrometry. Mutat Res 2008; 646:17-24. [PMID: 18812181 DOI: 10.1016/j.mrfmmm.2008.08.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 08/06/2008] [Accepted: 08/26/2008] [Indexed: 05/26/2023]
Abstract
Aristolochic acid (AA), derived from the herbal genus Aristolochia and Asarum, has recently been shown to be associated with the development of nephropathy. Upon enzyme activation, AA is metabolized to the aristolactam-nitrenium ion intermediate, which reacts with the exocyclic amino group of the DNA bases via an electrophilic attack at its C7 position, leading to the formation of the corresponding DNA adducts. The AA-DNA adducts are believed to be associated with the nephrotoxic and carcinogenic effects of AA. In this study, liquid chromatography coupled with electrospray ionization mass spectrometry (LC-MS) was used to identify and quantify the AA-DNA adducts isolated from the kidney and liver tissues of the AA-dosed rats. The deoxycytidine adduct of AA (dC-AA) and the deoxyadenosine-AA adduct (dA-AA) were detected and quantified in the tissues of rats with one single oral dose (5mg or 30mg AA/kg body weight). The deoxyguanosine adduct (dG-AA), however, was detected only in the kidney of rats that were dosed at 30mg AA/kg body weight for three consecutive days. The amount of AA-DNA adducts found in the rats correlated well with the dosage.
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Affiliation(s)
- Wan Chan
- Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
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44
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Liang XM, Jin Y, Wang YP, Jin GW, Fu Q, Xiao YS. Qualitative and quantitative analysis in quality control of traditional Chinese medicines. J Chromatogr A 2008; 1216:2033-44. [PMID: 18656880 DOI: 10.1016/j.chroma.2008.07.026] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2008] [Revised: 05/31/2008] [Accepted: 07/01/2008] [Indexed: 10/21/2022]
Abstract
Separation techniques with high efficiency and sensitive detection have been widely used for quality control of traditional Chinese medicines (TCMs). High-performance liquid chromatography, gas chromatography, and capillary electrophoresis are commonly used to separate various components in TCMs. Ultraviolet detection, fluorescence detection, evaporative light-scattering detection, mass spectrometry and nuclear magnetic resonance can be applied to separation techniques for qualitative and quantitative analysis of TCMs. The development of quality control for TCMs based on quantitative and qualitative analysis from 2000 to 2007 are reviewed; the fingerprint technique is also discussed due to its broad application in the quality control of TCMs. Prospects for further research based on our primary results are also discussed.
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Affiliation(s)
- Xin-miao Liang
- Dalian Institute of Chemical Physics, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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45
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Li S, Han Q, Qiao C, Song J, Lung Cheng C, Xu H. Chemical markers for the quality control of herbal medicines: an overview. Chin Med 2008; 3:7. [PMID: 18588699 PMCID: PMC2488332 DOI: 10.1186/1749-8546-3-7] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2008] [Accepted: 06/28/2008] [Indexed: 11/12/2022] Open
Abstract
Selection of chemical markers is crucial for the quality control of herbal medicines, including authentication of genuine species, harvesting the best quality raw materials, evaluation of post-harvesting handling, assessment of intermediates and finished products, and detection of harmful or toxic ingredients. Ideal chemical markers should be the therapeutic components of herbal medicines. However, for most herbal medicines, the therapeutic components have not been fully elucidated or easily monitored. Bioactive, characteristic, main, synergistic, correlative, toxic and general components may be selected. This article reviews the effective use of chemical markers in the quality control of herbal medicines including the selection criteria considering the roles and physicochemical factors which may affect the effective use of chemical markers.
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Affiliation(s)
- Songlin Li
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
| | - Quanbin Han
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
| | - Chunfeng Qiao
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
| | - Jingzheng Song
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
| | - Chuen Lung Cheng
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
| | - Hongxi Xu
- Chinese Medicine Laboratory, Hong Kong Jockey Club Institute of Chinese Medicine, Hong Kong SAR, PR China
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46
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Simultaneous analysis of six aristolochic acids and five aristolactams in herbal plants and their preparations by high-performance liquid chromatography–diode array detection–fluorescence detection. J Chromatogr A 2008; 1182:85-92. [DOI: 10.1016/j.chroma.2007.12.076] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2007] [Revised: 11/26/2007] [Accepted: 12/31/2007] [Indexed: 11/19/2022]
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47
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Chan W, Lee KC, Liu N, Wong RNS, Liu H, Cai Z. Liquid chromatography/mass spectrometry for metabonomics investigation of the biochemical effects induced by aristolochic acid in rats: the use of information-dependent acquisition for biomarker identification. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2008; 22:873-880. [PMID: 18288688 DOI: 10.1002/rcm.3438] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The toxic effects of oral administrations of nephrotoxic and carcinogenic aristolochic acid (AA) to male Sprague-Dawley rats were investigated by using high-performance liquid chromatography coupled with a quadrupole time-of-flight mass spectrometer. Analysis of the urine and plasma samples revealed distinct changes in the biochemical patterns in the AA-dosed rats. After peak finding and alignment, principal component analysis (PCA) and partial least-squares discriminant analysis (PLS-DA) were used for multivariate data analysis. Potential biomarkers were studied by high-resolution mass spectrometry (MS) and tandem mass spectrometry (MS/MS) analyses. The MS/MS spectra of all endogenous metabolites satisfying the pre-defined criteria were acquired in a single information-dependent acquisition (IDA) analysis, demonstrating that IDA was an efficient approach for structural elucidation in metabonomic studies. Citric acid and a glucuronide-containing metabolite were observed as potential biomarkers in rat urine. A significant increase in plasma creatinine concentration was also observed in the AA-dosed rats, which indicated that AA induced an adverse effect on the renal clearance function.
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Affiliation(s)
- Wan Chan
- Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
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