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Luca SV, Zengin G, Kulinowski Ł, Sinan KI, Skalicka-Woźniak K, Trifan A. Phytochemical profiling and bioactivity assessment of underutilized Symphytum species in comparison with Symphytum officinale. J Sci Food Agric 2024; 104:3971-3981. [PMID: 38252561 DOI: 10.1002/jsfa.13279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 11/21/2023] [Accepted: 01/07/2024] [Indexed: 01/24/2024]
Abstract
BACKGROUND Symphytum (comfrey) genus, particularly Symphytum officinale, has been empirically used in folk medicine mainly for its potent anti-inflammatory properties. In an attempt to shed light on the valorization of less known taxa, the current study evaluated the metabolite profile and antioxidant and enzyme inhibitory effects of nine Symphytum species. RESULTS Phenolic acids, flavonoids and pyrrolizidine alkaloids were the most representative compounds in all comfrey samples. Hierarchical cluster analysis revealed that, within the roots, S. grandiflorum was slightly different from S. ibericum, S. caucasicum and the remaining species. Within the aerial parts, S. caucasicum and S. asperum differed from the other samples. All Symphytum species showed good antioxidant and enzyme inhibitory activities, as evaluated in DPPH (up to 50.17 mg Trolox equivalents (TE) g-1), ABTS (up to 49.92 mg TE g-1), cupric reducing antioxidant capacity (CUPRAC, up to 92.93 mg TE g-1), ferric reducing antioxidant power (FRAP, up to 53.63 mg TE g-1), acetylcholinesterase (AChE, up to 0.52 mg galanthamine equivalents (GALAE) g-1), butyrylcholinesterase (BChE, up to 0.96 mg GALAE g-1), tyrosinase (up to 13.58 mg kojic acid equivalents g-1) and glucosidase (up to 0.28 mmol acarbose equivalents g-1) tests. Pearson correlation analysis revealed potential links between danshensu and ABTS/FRAP/CUPRAC, quercetin-O-hexoside and DPPH/CUPRAC, or rabdosiin and anti-BChE activity. CONCLUSIONS By assessing for the first time in a comparative manner the phytochemical-biological profile of a considerably high number of Symphytum samples, this study unveils the potential use of less common comfrey species as novel phytopharmaceutical or agricultural raw materials. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Simon Vlad Luca
- Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | - Łukasz Kulinowski
- Department of Natural Products Chemistry, Medical University of Lublin, Lublin, Poland
| | - Kouadio Ibrahime Sinan
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | | | - Adriana Trifan
- Department of Pharmacognosy-Phytotherapy, Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
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Fan Y, Wang M, Zhang Q, Ouyang S, Mao W, Xu C, Wang M, Long C. Traditional uses, phytochemistry, pharmacology, toxicity and clinical application of traditional Chinese medicine Cynoglossum amabile: a review. Front Pharmacol 2024; 15:1325283. [PMID: 38655180 PMCID: PMC11035817 DOI: 10.3389/fphar.2024.1325283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
Cynoglossum amabile, a member of the Boraginaceae family, is a well-known traditional Chinese medicine and ethnomedicine known as Daotihu. Despite several studies confirming the presence of bioactive pyrrolizidine alkaloids such as amabiline, ambelline, echinatine, europine, and others in C. amabile, there has been no comprehensive review of its traditional uses, phytochemistry, and pharmacology thus far. This review was conducted by thoroughly examining the literature and analyzing network databases. It covers various aspects of C. amabile, including botanical characteristics, geographical distribution, traditional applications, phytochemistry, pharmacological activities, toxicology, and clinical applications. The results have shown that C. amabile has been traditionally used for medicinal, edible, and ornamental purposes in China for many centuries. The whole plant, root, and leaf of C. amabile are used by different ethnic groups, such as Lisu, Bai, Naxi, Yi, Jinuo, and Han, to treat malaria, hepatitis, dysentery, leucorrhea, tuberculosis cough, fracture, joint dislocation, trauma bleeding, and skin carbuncle abscess. A total of 47 chemical components, including alkaloids (pyrrolizidine alkaloids, PAs), sterols, organic acids, and saccharides, were isolated from C. amabile. Pharmacological studies show that the chemical extracts of C. amabile possess various biological activities, such as anti-inflammatory, anti-tumor, anti-microbial, cardiovascular effects, ganglionic action, and acetylcholinesterase inhibition. However, it is important to note that C. amabile exhibits hepatotoxicity, with its toxicity being linked to its primary PAs components. Although preliminary studies suggest potential applications in the treatment of prostate diseases and alopecia, further research is needed to validate these clinical uses. Our review highlights the traditional uses, phytochemistry, biological activity, toxicity, and clinical applications of C. amabile. It emphasizes the essential guiding role of the indigenous medicinal knowledge system in developing new drugs. Previous studies have shown that the phytochemical and pharmacological characteristics of C. amabile are significantly related to its traditional medicinal practices. Cynoglossum amabile has excellent market potential and can be further analyzed in terms of phytochemistry, pharmacology, and toxicology, which are critical for its clinical drug safety, quality evaluation, and resource development.
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Affiliation(s)
- Yanxiao Fan
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Miaomiao Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Qing Zhang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Shuqi Ouyang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, China
| | - Wenhui Mao
- Xianggelila Bureau of Forestry and Grassland, Beijing, China
| | - Congli Xu
- Baoshan Administrative of Gaoligongshan National Nature Reserve, Baoshan, China
| | - Min Wang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
- BTBU-TANGYI Innovation Center for the Evaluation of the Safety and Efficacy of Bioengineering Raw Materials, Beijing, China
| | - Chunlin Long
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
- Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, China
- Institute of National Security Studies, Minzu University of China, Beijing, China
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3
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Ruzibaeva RM, Bobakulov KM, Mukarramov NI, Tashkhodzhaev B, Okmanov RY, Nigmatullaev AM, Abdullaev ND. Rinderidine and oblongifolidine new pyrrolizidine alkaloids from Rindera oblongifolia M. Popov and their absolute configurations. Nat Prod Res 2024; 38:1157-1167. [PMID: 36255127 DOI: 10.1080/14786419.2022.2134865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 09/27/2022] [Accepted: 10/04/2022] [Indexed: 10/24/2022]
Abstract
The alkaloid composition of Rindera oblongifolia was studied, in which the pyrrolizidine alkaloids echinatine and trachelanthamine N-oxide, as well as two new quaternary salts namely rinderidine and the oblongifolidine were isolated. The structures of the isolated new alkaloids were elucidated by NMR spectroscopy. The absolute configuration of lindelofine, trachelanthamine N-oxide, rinderidine and oblongifolidine was established by single crystal X-ray diffraction as: 1 R, 4 R, 8 R, 2'S, 3'R; 1 R, 4S, 8S, 2'S, 3'R; 4 R, 7S, 8 R, 2'S, 3'S; 4 R, 7S, 8 R, 2'S, 3'S (7''S, 8''R) respectively. Both new pyrrolizidine alkaloids showed no cytotoxicity against four cancer cell lines such as HeLa, НEр-2, HBL-100 and CCRF-CEM.
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Affiliation(s)
- R M Ruzibaeva
- Department of Chemistry of Alkaloids, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - Kh M Bobakulov
- Department of Physical Methods of Research, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - N I Mukarramov
- Department of Chemistry of Alkaloids, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - B Tashkhodzhaev
- Department of Physical Methods of Research, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - R Ya Okmanov
- Department of Physical Methods of Research, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
- Department of Organic Chemistry, National University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
| | - A M Nigmatullaev
- Department of Medicinal and Technical Plants, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - N D Abdullaev
- Department of Physical Methods of Research, Acad. S.Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
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Zheng Q, Zhang H. Gynura segetum induces hepatic sinusoidal obstruction syndrome in a child: A case report. Medicine (Baltimore) 2024; 103:e37341. [PMID: 38489699 PMCID: PMC10939675 DOI: 10.1097/md.0000000000037341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/02/2024] [Indexed: 03/17/2024] Open
Abstract
RATIONALE Hepatic sinusoidal obstruction syndrome (HSOS), which includes hepatic stasis and portal hypertension, is a rare vascular disorder of the liver. It is often associated with hematopoietic stem cell transplantation. It is also possible to treat this disease using Chinese herbal medicines that contain pyrrolizidine alkaloids (PAs). This disease is extremely rare in children and poses a serious threat to their health. To our knowledge, this is the first case of HSOS in a child with PAs. PATIENT CONCERNS We report a 4-year-old boy suffering from abdominal pain, hepatomegaly, massive ascites, elevated liver enzyme level, and severe portal hypertension as a result of the consumption of Gynura segetum (also known as Tusanqi in Chinese, a traditional herbal medicine containing PAs). DIAGNOSES The child was finally diagnosed with PA-HSOS based on pathological diagnosis and imaging examination. INTERVENTION With active symptomatic and supportive care and sequential anticoagulation therapy, the abdominal distension and liver function improved in the patient. OUTCOMES The patient was eventually recovered. The levels of liver enzymes, hemoglobin, and bilirubin were normal, and the international normalized ratio fluctuated between 2.0 and 3.0 during 1-year follow-up after discharge. LESSONS This case report emphasizes the prevention of Chinese herb-induced liver injury in children and the importance of active long-term sequential anticoagulant therapy to reduce the progressive damage of PA-HSOS in the liver.
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Affiliation(s)
- Qian Zheng
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Haiyang Zhang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
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5
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Lu YS, Qiu J, Mu XY, Qian YZ, Chen L. Levels, Toxic Effects, and Risk Assessment of Pyrrolizidine Alkaloids in Foods: A Review. Foods 2024; 13:536. [PMID: 38397512 PMCID: PMC10888194 DOI: 10.3390/foods13040536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Pyrrolizidine alkaloids (PAs) are naturally occurring secondary metabolites of plants. To date, more than 660 types of PAs have been identified from an estimated 6000 plants, and approximately 120 of these PAs are hepatotoxic. As a result of PAs being found in spices, herbal teas, honey, and milk, PAs are considered contaminants in foods, posing a potential risk to human health. Here, we summarize the chemical structure, toxic effects, levels, and regulation of PAs in different countries to provide a better understanding of their toxicity and risk assessment. With recent research on the risk assessment of PAs, this review also discusses the challenges facing this field, aiming to provide a scientific basis for PA toxicity research and safety assessment.
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Affiliation(s)
- Yu-Shun Lu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.-S.L.); (Y.-Z.Q.)
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China
| | - Jing Qiu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.-S.L.); (Y.-Z.Q.)
| | - Xi-Yan Mu
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.-S.L.); (Y.-Z.Q.)
| | - Yong-Zhong Qian
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.-S.L.); (Y.-Z.Q.)
| | - Lu Chen
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (Y.-S.L.); (Y.-Z.Q.)
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Tábuas B, Cruz Barros S, Diogo C, Cavaleiro C, Sanches Silva A. Pyrrolizidine Alkaloids in Foods, Herbal Drugs, and Food Supplements: Chemistry, Metabolism, Toxicological Significance, Analytical Methods, Occurrence, and Challenges for Future. Toxins (Basel) 2024; 16:79. [PMID: 38393157 PMCID: PMC10892171 DOI: 10.3390/toxins16020079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/20/2023] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Consumers are increasingly seeking natural alternatives to chemical compounds, including the use of dried aromatic plants as seasonings instead of salt. However, the presence of pyrrolizidine alkaloids (PAs) in food supplements and dried plants has become a concern because of their link to liver diseases and their classification as carcinogenic by the International Agency for Research on Cancer (IARC). Despite European Union (EU) Regulation (EU) 2023/915, non-compliance issues persist, as indicated by alerts on the Rapid Alert System for Food and Feed (RASFF) portal. Analyzing PAs poses a challenge because of their diverse chemical structures and low concentrations in these products, necessitating highly sensitive analytical methods. Despite these challenges, ongoing advancements in analytical techniques coupled with effective sampling and extraction strategies offer the potential to enhance safety measures. These developments aim to minimize consumer exposure to PAs and safeguard their health while addressing the growing demand for natural alternatives in the marketplace.
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Affiliation(s)
- Bruna Tábuas
- Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal (C.C.)
| | - Sílvia Cruz Barros
- National Institute for Agricultural and Veterinary Research (INIAV), I.P, 4485-655 Vila do Conde, Portugal
| | - Catarina Diogo
- Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal (C.C.)
| | - Carlos Cavaleiro
- Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal (C.C.)
- Chemical Process Engineering and Forest Products Research Centre (CIEPQPF), University of Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
| | - Ana Sanches Silva
- Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal (C.C.)
- Center for Study in Animal Science (CECA), Institute of Sciences, Technologies and Agro-Environment of the University of Porto (ICETA), University of Porto, 4501-401 Porto, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
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Chen G, Mao L, Xia H, Zhu L, Huang J, Lu Y, Liu X, Tang T. Analysis of potential risks of clinical application of Yi Dian Hong and its proprietary Chinese medicines: A review. Medicine (Baltimore) 2024; 103:e36860. [PMID: 38277559 PMCID: PMC10817075 DOI: 10.1097/md.0000000000036860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 12/14/2023] [Indexed: 01/28/2024] Open
Abstract
Yi Dian Hong, belonging to the Asteraceae family, finds widespread use in traditional Chinese medicine for its effectiveness in clearing heat, detoxifying, promoting blood circulation, reducing swelling, and cooling the blood. Modern medical research has revealed that Yi Dian Hong and its proprietary Chinese medicines possess biological functions such as inhibiting tumor-specific angiogenesis and regulating immune-related molecules. However, studies have identified that the primary component of Yi Dian Hong contains pyrrolizidine alkaloids (PAs), a toxic substance with potential risks to the liver, lungs, genes, and a propensity for carcinogenicity. Many countries impose strict controls on the content of PAs in herbal medicines and products. Unfortunately, China currently lacks relevant content standards, thereby introducing greater clinical application risks. To ensure the safety of clinical use of Yi Dian Hong, this review will analyze the risk associated with Yi Dian Hong and its proprietary Chinese medicines in clinical applications based on the PAs content in these medicines and provide recommendations.
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Affiliation(s)
- Gongzhen Chen
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Leiming Mao
- Guiyang Second People’s Hospital, Guizhou, China
| | - Huyan Xia
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Lei Zhu
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Jiamin Huang
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Yingmin Lu
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Xin Liu
- Guizhou University of Traditional Chinese Medicine, Guizhou, China
| | - Ting Tang
- First Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guizhou, China
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Rollo E, Catellani D, Dall'Asta C, Suman M. QuEChERS method combined to liquid chromatography high-resolution mass spectrometry for the accurate and sensitive simultaneous determination of pyrrolizidine and tropane alkaloids in cereals and spices. J Mass Spectrom 2023; 58:e4969. [PMID: 37604670 DOI: 10.1002/jms.4969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/23/2023] [Accepted: 07/21/2023] [Indexed: 08/23/2023]
Abstract
Within the last decades, in the EU, there has been an increasing interest in toxic plant alkaloids as food contaminants, especially after the continuous and growing consumption of plant-based foods compared with food of animal origin. In this regard, the once neglected presence of these tropane alkaloids (TAs) and pyrrolizidine alkaloids (PAs) has recently been reconsidered by the European Food Safety Authority, highlighting the lack of data and the need to develop risk assessment strategies. For this reason, the emphasis has been placed on detecting their occurrence in food through the development of accurate and sensitive analytical methods to achieve the determination of these compounds. The present study aims to elaborate and validate an analytical method based on QuEChERS sample preparation approach, exploiting the UHPLC coupled to the HRMS to simultaneously identify and quantify 21 PAs and two TAs in cereals and spices. For TAs, the obtained limit of detection (LOD) is 0.1 μg·kg-1 and the limit of quantification (LOQ) is 0.4 μg·kg-1 , while for PAs, the LODs values ranging between 0.2 to 0.3 μg·kg-1 and the LOQ, between 0.4 and 0.8 μg·kg-1 , ensuring compliance with the recently established European Regulations. Several commercial samples were analysed to further verify the applicability of this comprehensive analytical approach.
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Affiliation(s)
- Eleonora Rollo
- Analytical Food Science, Barilla G. e R. Fratelli S.p.A., Parma, Italy
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Dante Catellani
- Analytical Food Science, Barilla G. e R. Fratelli S.p.A., Parma, Italy
| | | | - Michele Suman
- Analytical Food Science, Barilla G. e R. Fratelli S.p.A., Parma, Italy
- Department for Sustainable Food Process, Catholic University Sacred Heart, Piacenza, Italy
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9
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Gumus ZP. Assessment of Toxic Pyrrolizidine and Tropane Alkaloids in Herbal Teas and Culinary Herbs Using LC-Q-ToF/MS. Foods 2023; 12:3572. [PMID: 37835225 PMCID: PMC10572649 DOI: 10.3390/foods12193572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Pyrrolizidine alkaloids are secondary metabolites produced by plants as a defense against insects. These can cause acute or chronic toxicity in humans. Therefore, avoiding potential poisoning from the consumption of tea and culinary plants contaminated with pyrrolizidine alkaloids (PAs), pyrrolizidine alkaloids N-oxides (PANOs), and tropane alkaloids (TAs) is important for human health and food safety. Therefore, it is important to determine the levels of these substances with reliable and highly accurate methods. In this study, the PAs, PANOs, and TAs in herbal teas and culinary herbs sold in Turkish markets were identified and their levels were determined. Thus, the general profiles of herbal teas and culinary herbs in Turkey were revealed, and the compliance of the total amounts of PA and TA with the regulations was examined. The identification and quantification of 25 PAs and N-oxides and 2 TAs (atropine and scopolamine) in the samples was performed with a liquid chromatography-quadrupole time-of-flight tandem mass spectrometer (LC-Q-ToF/MS). At least a few of these substances were detected in all of the tested herbal teas and culinary herbs. The total contents of the black tea, green tea, mixed tea, flavored tea, chamomile tea, sage tea, linden tea, fennel tea, rosehip tea, peppermint, and thyme samples ranged from 4.6 ng g-1 to 1054.5 ng g-1. The results obtained shed light on the importance of analyzing the total dehydro PA, PANO, and TA amounts in plant-based products consumed in diets with sensitive and accurate methods, and they highlight the necessity of performing these analyses routinely in terms of food safety.
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Affiliation(s)
- Zinar Pinar Gumus
- Central Research Test and Analysis Laboratory Application and Research Center (EGE-MATAL), Ege University, 35100 Izmir, Turkey
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10
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Akuamoa F, Mulder PPJ, Bovee TFH, Rietjens IMCM, Hoogenboom RLAP. Occurrence and associated health risks of pyrrolizidine alkaloids in supplements marketed in Ghana for improved sexual performance. Food Addit Contam Part B Surveill 2023; 16:301-309. [PMID: 37448098 DOI: 10.1080/19393210.2023.2227961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are noted for their hepatotoxic, genotoxic, and carcinogenic effects in animals and humans following metabolic activation in the liver. In this study, herbal supplements sold in Ghana for sexual improvement were analysed for the presence of 64 PAs using LC-MS/MS analysis. Up to 17 different PAs were identified in 19 out of the 37 samples analysed. The sum of PAs in samples ranged from 5 to 3204 μg kg-1. Since the PA content in the herbal medicinal preparations was generally lower than in honey samples, their presence was mainly attributed to cross-contamination. The observed levels would result in estimated daily intakes from 0.01 to 12 μg per day or 0.0002 to 0.2 μg kg-1 bw day-1 for a person weighing 70 kg. The margins of exposure ranged from 1200 to 1,400,000 with eight samples showing values below 10,000, thus indicating a health concern.
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Affiliation(s)
- Felicia Akuamoa
- Wageningen Food Safety Research, Wageningen, The Netherlands
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
- Applied Radiation Biology Centre, Ghana Atomic Energy Commission, Accra, Ghana
| | | | - Toine F H Bovee
- Wageningen Food Safety Research, Wageningen, The Netherlands
| | - Ivonne M C M Rietjens
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
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Kimel K, Godlewska S, Gleńsk M, Gobis K, Ośko J, Grembecka M, Krauze-Baranowska M. LC-MS/MS Evaluation of Pyrrolizidine Alkaloids Profile in Relation to Safety of Comfrey Roots and Leaves from Polish Sources. Molecules 2023; 28:6171. [PMID: 37630423 PMCID: PMC10459857 DOI: 10.3390/molecules28166171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/25/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Comfrey (Symphytum officinale L.) has a long tradition of use in the treatment of musculoskeletal disorders. However, due to hepatotoxic pyrrolizidine alkaloids (PAs), the EMA restricts the use of comfrey root (CR) to external use only and for short periods of time. Recent studies indicate a low permeability of PAs across the skin, calling into question the safety of topical application of products containing comfrey preparations. The aim of our work was to develop and validate an HPLC method enabling the separation of isomeric PAs from comfrey and, on this basis, to assess the potential toxicity of CR and comfrey leaf (CL) obtained from various Polish sources. The qualitative and quantitative analysis of PAs via HPLC-MS/MS was performed in MRM mode. The results obtained confirmed a lower content of PAs in CL than in CR and showed a wide variation in the composition of PAs in CR, with a much more stable profile of PAs in CL. Factor analysis confirmed that CRs and CLs differ in PA content, which is influenced by the growth conditions and geographical origin. The determined concentrations of PAs prove that in some CRs available on the Polish herbal market, the content of PAs may exceed the daily dose considered safe.
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Affiliation(s)
- Katarzyna Kimel
- Department of Pharmacognosy with Medicinal Plants Garden, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland; (K.K.); (S.G.)
| | - Sylwia Godlewska
- Department of Pharmacognosy with Medicinal Plants Garden, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland; (K.K.); (S.G.)
| | - Michał Gleńsk
- Department of Pharmacognosy and Herbal Medicines, Wroclaw Medical University, 211A Borowska St., 50-556 Wrocław, Poland;
| | - Katarzyna Gobis
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland;
| | - Justyna Ośko
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland
| | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland
| | - Mirosława Krauze-Baranowska
- Department of Pharmacognosy with Medicinal Plants Garden, Faculty of Pharmacy, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland; (K.K.); (S.G.)
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12
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Du X, Liu Z, Yu H, Wang Y, Zou Z, Wei H, Liang J, Yang D, Liu Y, Zhang J, Pan CQ. Prognostic risk factors for patients with hepatic sinusoidal obstruction syndrome caused by pyrrolizidine alkaloids. Medicine (Baltimore) 2023; 102:e34698. [PMID: 37565875 PMCID: PMC10419670 DOI: 10.1097/md.0000000000034698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/20/2023] [Indexed: 08/12/2023] Open
Abstract
Pyrrolizidine alkaloids induced hepatic sinusoidal obstruction syndrome (PA-HSOS) often occurs after consuming herbs or a dietary supplement containing the plant Tu-San-Qi. Limited data exists to identify patients with fatal outcomes for early interventions. We aimed to analyze the predictors for 3-month survival. We retrospectively enrolled PA-HSOS patients in 5 hospitals and extracted data from the onset of PA-HSOS to 36 months. Outcome measurements were 3-month and 36-month survival rates, baseline prognostic predictors for survival, and the effects of anticoagulant therapy. Among 49 enrollees, the median age was 60 and 49% male. At the onset of PA-HSOS, patients with Child-Turcotte-Pugh (CTP) class of A, B, or C were 8.2% (4/49), 42.8% (21/49) and 49.0% (24/49), respectively. None of them received a transjugular intrahepatic portosystemic shunt or a liver transplant. The 3-month and 36-month survival rates were 86% and 76%, respectively. Compared to the CTP class A or B, class C at baseline independently predicted lower survival rates at both 3 and 36 months. However, anticoagulation therapy treatment within the first 3 months independently predicted significantly higher survival rates at both time points. CTP class C and anticoagulant therapy were the independent predictors for short-term and long-term survival. Anticoagulant therapy could decrease mortality rate of CTP class C patients. The greatest benefit of anticoagulant evaluated by 3-month survival rate was in patients with CTP class C compared with those without treatment (93% vs 40%, P = .009). There were no bleeding complications reported in patients treated with the anticoagulant.
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Affiliation(s)
- Xiaofei Du
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zhenli Liu
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Haibin Yu
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yu Wang
- Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Zhengsheng Zou
- The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Hongshan Wei
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Jing Liang
- Tianjin Third Central Hospital, Tianjin, China
| | - Daokun Yang
- The First Affiliated Hospital of Xinxiang Medical University, Henan, China
| | - Yali Liu
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Jing Zhang
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Calvin Q. Pan
- Division on Gastroenterology and Hepatology, NYU Langone Health, NYU Grossman School of Medicine, NY
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13
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Peloso M, Minkoumba Sonfack G, Paduano S, De Martino M, De Santis B, Caprai E. Pyrrolizidine Alkaloids in Food on the Italian Market. Molecules 2023; 28:5346. [PMID: 37513219 PMCID: PMC10385305 DOI: 10.3390/molecules28145346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by over 6000 plant species worldwide. PAs enter the food chain through accidental co-harvesting of PA-containing weeds and through soil transfer from the living plant to surrounding acceptor plants. In animal studies, 1,2-unsaturated PAs have proven to be genotoxic carcinogens. According to the scientific opinion expressed by the 2017 EFSA, the foods with the highest levels of PA contamination were honey, tea, herbal infusions, and food supplements. Following the EFSA's recommendations, data on the presence of PAs in relevant food were monitored and collected. On 1 July 2022, the Commission Regulation (EU) 2020/2040 came into force, repealed by Commission Regulation (EU) 2023/915, setting maximum levels for the sum of pyrrolizidine alkaloids in certain food. A total of 602 food samples were collected from the Italian market between 2019 and 2022 and were classified as honey, pollen, dried tea, dried herbal infusions, dried herbs, and fresh borage leaves. The food samples were analyzed for their PA content via an in-house LC-MS/MS method that can detect PAs according to Regulation 2023/915. Overall, 42% of the analyzed samples were PA-contaminated, 14% exceeded the EU limits, and the items most frequently contaminated included dried herbs and tea. In conclusion, the number of food items containing considerable amounts of PAs may cause concern because they may contribute to human exposure, especially considering vulnerable populations-most importantly, children and pregnant women.
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Affiliation(s)
- Mariantonietta Peloso
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Via Fiorini 5, 40127 Bologna, Italy
| | - Gaetan Minkoumba Sonfack
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Via Fiorini 5, 40127 Bologna, Italy
| | - Sandra Paduano
- Ministry of Health, General Directorate for Hygiene and Food Safety and Nutrition, Via G. Ribotta, 5, 00144 Rome, Italy
| | - Michele De Martino
- Ministry of Health, General Directorate for Hygiene and Food Safety and Nutrition, Via G. Ribotta, 5, 00144 Rome, Italy
| | - Barbara De Santis
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Elisabetta Caprai
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Via Fiorini 5, 40127 Bologna, Italy
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14
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Roncada P, Isani G, Peloso M, Dalmonte T, Bonan S, Caprai E. Pyrrolizidine Alkaloids from Monofloral and Multifloral Italian Honey. Int J Environ Res Public Health 2023; 20:5410. [PMID: 37048023 PMCID: PMC10094242 DOI: 10.3390/ijerph20075410] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by plants as a self-defense against insects. After bioactivation in the liver, some PAs can cause acute or chronic toxicity in humans. The aim of this study was to determine the presence of PAs in 121 samples of monofloral and multifloral honey from three different Italian regions (Friuli-Venezia Giulia, Marche and Calabria) to meet the European Food Safety Authority (EFSA) suggestion. An in-house liquid chromatography with tandem mass spectrometry (LC-MS/MS) method was validated according to European Union Reference Laboratory (EURL) performance criteria. This method allowed the detection and quantification of 35 PAs. Of the 121 honey samples, 38 (31%), mostly from Calabria, contained PAs. The total content of the PAs ranged from 0.9 µg/kg to 33.1 µg/kg. In particular, echimidine was the most prevalent PA. A rapid human exposure assessment to PAs in honey and a risk characterization was performed using the EFSA RACE tool. The assessment highlighted a potential health concern only for toddlers who frequently consume elevated quantities of honey. This study showed a low presence of PAs in Italian honey; however, the importance of continuously monitoring these compounds is stressed, along with the suggestion that the relevant authorities establish maximum limits to guarantee support for producers and consumer safety.
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Affiliation(s)
- Paola Roncada
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, via Tolara di sopra 50, 40064 Ozzano dell’Emilia, Italy
| | - Gloria Isani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, via Tolara di sopra 50, 40064 Ozzano dell’Emilia, Italy
| | - Mariantonietta Peloso
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, IZSLER, Via Fiorini, 5, 40127 Bologna, Italy
| | - Thomas Dalmonte
- Department of Veterinary Medical Sciences, Alma Mater Studiorum—University of Bologna, via Tolara di sopra 50, 40064 Ozzano dell’Emilia, Italy
| | - Stefania Bonan
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, IZSLER, Via Fiorini, 5, 40127 Bologna, Italy
| | - Elisabetta Caprai
- National Reference Laboratory for Plant Toxins in Food, Food Chemical Department, IZSLER, Via Fiorini, 5, 40127 Bologna, Italy
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15
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Jiao W, Wang L, Zhu L, Shen T, Shi T, Zhang P, Wang C, Chen H, Wu X, Yang T, Li QX, Hua R. Pyrrolizidine-producing weeds in tea gardens as an indicator of alkaloids in tea. Food Addit Contam Part B Surveill 2023; 16:50-57. [PMID: 36396606 DOI: 10.1080/19393210.2022.2145507] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pyrrolizidine alkaloids (PAs) can be transferred between plants via soil. Indicators of PAs in tea products are useful for tea garden management. In the present work a total of 37 weed species, 37 weed rhizospheric soils and 24 fresh tea leaf samples were collected from tea gardens, in which PAs were detected in 35 weeds species, 21 soil samples and 10 fresh tea leaves samples. In Shexian tea garden, 12.9 μg/kg of intermedine (Im) in one bud plus three leaves, 1.40 and 14.6 μg/kg of intermedine-N-oxide (ImNO) in one bud plus two leaves and one bud plus three leaves were detected, which were transferred from the PA-producing weeds via soil. However, no PAs were detected in fresh tea leaves collected from Langxi tea garden. The results indicated that synthesis of PAs in weeds and their transfer through the weed-soil-fresh tea leaf route varied with soil environments in different tea gardens.
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Affiliation(s)
- Weiting Jiao
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China.,State Key Laboratory of Tea Plant Biology and Utilization; School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, China
| | - Luyao Wang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
| | - Lei Zhu
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China.,Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou, China
| | - Tingting Shen
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
| | - Taozhong Shi
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
| | - Ping Zhang
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
| | - Chen Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou, China
| | - Hongping Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Tea Quality and Safety & Risk Assessment, Ministry of Agriculture, Hangzhou, China
| | - Xiangwei Wu
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
| | - Tianyuan Yang
- State Key Laboratory of Tea Plant Biology and Utilization; School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Rimao Hua
- Key Laboratory of Agri-food Safety of Anhui Province, School of Resource & Environment of Anhui Agricultural University, Hefei, China
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16
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Eckert E, Lepper H, Hintzsche H. Risk assessment of short-term intake of pyrrolizidine alkaloids in food: derivation of an acute reference dose. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:588-596. [PMID: 36794362 DOI: 10.1080/19440049.2023.2178828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Pyrrolizidine alkaloids (PA) are phytochemicals that are known to act as human hepatotoxins and are also considered to be genotoxic carcinogens. Several plant-derived foods are frequently contaminated with PA, like teas and herbal infusions, spices and herbs or certain food supplements. With respect to the chronic toxicity of PA, the carcinogenic potential of PA is generally regarded as the critical toxicological effect. The risk assessment of the short-term toxicity of PA, however, is internationally less consistent. The characteristic pathological syndrome of acute PA toxicity is hepatic veno-occlusive disease. High PA exposure levels may lead to liver failure and even death as documented by several case reports. In the present report, we suggest a risk assessment approach for the derivation of an acute reference dose (ARfD) for PA of 1 µg/kg body weight per day based on a sub-acute animal toxicity study in rats after oral PA administration. The derived ARfD value is further supported by several case reports describing acute human poisoning following accidental PA intake. The here derived ARfD value may be used for PA risk assessment in cases where the short-term toxicity of PA is of interest in addition to the assessment of the long-term risks.
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Affiliation(s)
- Elisabeth Eckert
- Department of Risk Assessment, Bavarian Health and Food Safety Authority, Erlangen, Germany.,Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Hans Lepper
- Department of Risk Assessment, Bavarian Health and Food Safety Authority, Erlangen, Germany
| | - Henning Hintzsche
- Department of Risk Assessment, Bavarian Health and Food Safety Authority, Erlangen, Germany.,Department of Food Safety, Institute of Food and Nutritional Sciences, University of Bonn, Bonn, Germany
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17
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Pyrzanowska J. The toxic contaminants of Aspalathus linearis plant material as well as herb-drug interactions may constitute the health risk factors in daily rooibos tea consumers. Int J Environ Health Res 2023; 33:129-142. [PMID: 34823434 DOI: 10.1080/09603123.2021.2009780] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
Rooibos tea is brewed using Aspalathus linearis plant material sensitive to environmental contamination. This review covers the safety data from preclinical experiments as well as human studies and delivers a report on its hepatic activity. In vitro tea investigation reveals antioxidative and anti-mutagenic features and ability to modulate microsomal enzymes. In rodent research, it exerts protective or neutral impact on liver functions and morphology, yet several human case reports suggest possible acute hepatic damage. Summarizing rooibos consumption seems to be safe in terms of hepatotoxicity; however, there may be designated a group of consumers with higher risk of liver irritation. The contamination of plant material may contribute to herb-induced liver injury. Due to the impact on CYPs, there is a possible risk of herb-drug interactions affecting bioavailability of some co-administered medicines. Caution should be exercised in patients receiving the treatment with allopathic medicines to avoid untoward alteration of drug plasma concentration.
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Affiliation(s)
- Justyna Pyrzanowska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Centre for Preclinical Research and Technology CePT, Warsaw, Poland
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18
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Zan K, Wang Z, Hu XW, Li YL, Wang Y, Jin HY, Zuo TT, Ma SC. Pyrrolizidine alkaloids and health risk of three Boraginaceae used in TCM. Front Pharmacol 2023; 14:1075010. [PMID: 37033649 PMCID: PMC10076571 DOI: 10.3389/fphar.2023.1075010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
Objective: The aim of this study was to systematically explore the pyrrolizidine alkaloids (PAs) type, content and risk assessment in the three Boraginaceae used in TCM, involving Arnebia euchroma (AE), A. guttata (AG), and Lithospermum erythrorhizon (LE). Method: A UHPLC-MS/MS method was established to simultaneously determine eight pyrrolizidine alkaloids (PAs), namely intermedine, lycopsamine, intermedine N-oxide, lycopsamine N-oxide, 7-acetyllycopsamine, 7-acetyllycopsamine N-oxide, echimidine N-oxide, and echimidine in the three herbs. Based on these results, the risk assessment was explored using the routine margin of exposure (MOE) combined with relative potency (REP) for oral and external usage, respectively. Results and Conclusion: Imermedine and imermedine N-oxide were common components in the eight tested PAs. 7-acetyllycopsamine and its N-oxide were not detected in AE; echimidine and its N-oxide were not detected in AG; lycopsamine and its N-oxide, 7-acetyllycopsamine and its N-oxide were not detected in LE. The total contents of 8 PAs in 11 batches of AG was341.56-519.51 μg/g; the content in 15 batches of LE was 71.16-515.73 μg/g, and the content in 11 batches of AE was 23.35-207.13 μg/g. Based on these results, the risk assessment was explored using MOE combined with REP for oral and external usage, respectively. The findings of the risk assessment method of PAs based on MOE combined with the REP factor were consistent with the clinical toxicity results. As an oral herb, AE had low risk or no risk due to its low PA contents, and individual batches of LE were medium risk, while attention should be paid to their clinical use.AG was also low risk. The external use of the three Boraginaceae used in TCM was not associated with any risk. This study systematically explored the PA type and content of the three Boraginaceae used in TCM. Additionally, the refined risk assessment of PAs based on REP provided a more scientific basis for quality evaluation and rational use of the medicinal Boraginaceae used in TCM to improve public health.
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Affiliation(s)
- Ke Zan
- National Institutes for Food and Drug Control, Beijing, China
| | - Zhao Wang
- National Institutes for Food and Drug Control, Beijing, China
| | - Xiao-Wen Hu
- National Institutes for Food and Drug Control, Beijing, China
| | - Yao-Lei Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Ying Wang
- National Institutes for Food and Drug Control, Beijing, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control, Beijing, China
| | - Tian-Tian Zuo
- National Institutes for Food and Drug Control, Beijing, China
- *Correspondence: Tian-Tian Zuo, ; Shuang-Cheng Ma,
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control, Beijing, China
- *Correspondence: Tian-Tian Zuo, ; Shuang-Cheng Ma,
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Allemang A, Mahony C, Pfuhler S. The in vitro genotoxicity potency of mixtures of pyrrolizidine alkaloids can be explained by dose addition of the individual mixture components. Environ Mol Mutagen 2022; 63:400-407. [PMID: 36258291 DOI: 10.1002/em.22512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Plant-based 1,2-unsaturated Pyrrolizidine Alkaloids (PAs) are responsible for liver genotoxicity/carcinogenicity following metabolic activation, making them a relevant concern for safety assessment. Due to 21st century toxicology approaches, risk of PAs can be better discerned though an understanding of differing toxic potencies, but it is often mixtures of PAs that are found as contaminants in foods, for example, herbal teas and honey, food supplements and herbal medicines. Our study investigated whether genotoxicity potency of PAs dosed individually or in mixtures differed when measured using micronuclei formation in vitro in HepaRG human liver cells, which we and others have shown to be suitable for observing genotoxic potency differences across different PA structural classes. When equipotent concentrations of up to six different PAs representing a wide range of potencies in vitro were tested as mixtures, the observed genotoxic potency aligned favorably with results for single PAs. Similarly, when the BMD confidence intervals of these equipotent mixtures were compared with the confidence intervals of the individual PAs, only minimal variation was observed. These data support a conclusion that for this class of plant impurities, all acting via the same DNA-reactive mode of action, genotoxic potency can be regarded as additive when assessing the risk of mixtures of PAs.
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Affiliation(s)
- Ashley Allemang
- Global Product Stewardship, Human Safety, The Procter & Gamble Company, Mason, USA
| | - Catherine Mahony
- Global Product Stewardship, Human Safety, Procter & Gamble Technical Center Ltd., Reading, UK
| | - Stefan Pfuhler
- Global Product Stewardship, Human Safety, The Procter & Gamble Company, Mason, USA
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20
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Al-Subaie SF, Alowaifeer AM, Mohamed ME. Pyrrolizidine Alkaloid Extraction and Analysis: Recent Updates. Foods 2022; 11:foods11233873. [PMID: 36496681 PMCID: PMC9740414 DOI: 10.3390/foods11233873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
Pyrrolizidine alkaloids are natural secondary metabolites that are mainly produced in plants, bacteria, and fungi as a part of an organism's defense machinery. These compounds constitute the largest class of alkaloids and are produced in nearly 3% of flowering plants, most of which belong to the Asteraceae and Boraginaceae families. Chemically, pyrrolizidine alkaloids are esters of the amino alcohol necine (which consists of two fused five-membered rings including a nitrogen atom) and one or more units of necic acids. Pyrrolizidine alkaloids are toxic to humans and mammals; thus, the ability to detect these alkaloids in food and nutrients is a matter of food security. The latest advances in the extraction and analysis of this class of alkaloids are summarized in this review, with special emphasis on chromatographic-based analysis and determinations in food.
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Affiliation(s)
- Sarah F. Al-Subaie
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Reference Laboratory for Food Chemistry, Saudi Food and Drug Authority (SFDA), Riyadh 11561, Saudi Arabia
| | - Abdullah M. Alowaifeer
- Reference Laboratory for Food Chemistry, Saudi Food and Drug Authority (SFDA), Riyadh 11561, Saudi Arabia
| | - Maged E. Mohamed
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Correspondence: ; Tel.: +966-542990226
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Wang H, Wang Q, Lai A, Zhu J, Huang X, Hu G. Multi-Response Optimization of Pyrrolizidine Alkaloids Removal from Chrysanthemum morifolium by High-Pressure Extraction. Foods 2022; 11:foods11233827. [PMID: 36496634 PMCID: PMC9737379 DOI: 10.3390/foods11233827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
As an ingredient in various foods, Chrysanthemum morifolium flower is popular due to its multiple health benefits. Pyrrolizidine alkaloids (PAs) are hepatotoxic secondary metabolites in Chrysanthemum family. Effects of high-pressure extraction (HPE) on PAs removal efficiency, as well as the retention efficiency of functional components, including chlorogenic acid, luteolin-7-β-D-glucopyranoside, 3,5-dicaffeyl quinic acid and total flavonoids, were investigated and optimized using response surface methodology (RSM). Pressure (0.1-200 MPa), numbers of cycles (1-5) and acetic acid concentration (0-10%) were chosen as the independent variables. The results indicated that the pressure was the most significant factors affecting all responses. The optimum HPE for removing Pas and retaining functional components were set at 124 MPa, with one cycle and with an acetic acid concentration of 10%. After comparing the experimental optimum values and predicted optimum values, the validity of RSM model was proved.
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Affiliation(s)
- Hao Wang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Qiang Wang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Aiping Lai
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Jiahong Zhu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
| | - Xiuzhu Huang
- Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, 22 Maizidian Road, Beijing 100125, China
- Correspondence: (X.H.); (G.H.); Tel.: +86-010-59194067 (X.H.); +86-571-86417319 (G.H.)
| | - Guixian Hu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 298 Deshengzhong Road, Hangzhou 310021, China
- Correspondence: (X.H.); (G.H.); Tel.: +86-010-59194067 (X.H.); +86-571-86417319 (G.H.)
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22
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Acito M, Russo C, Fatigoni C, Mercanti F, Moretti M, Villarini M. Cytotoxicity and Genotoxicity of Senecio vulgaris L. Extracts: An In Vitro Assessment in HepG2 Liver Cells. Int J Environ Res Public Health 2022; 19:14824. [PMID: 36429544 PMCID: PMC9690910 DOI: 10.3390/ijerph192214824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Senecio vulgaris L. is a herbaceous species found worldwide. The demonstrated occurrence of pyrrolizidine alkaloids in this species and its ability to invade a great variety of habitats result in a serious risk of contamination of plant material batches addressed to the herbal teas market; this presents a potential health risk for consumers. In light of the above, this work aimed to assess the cytotoxic and genotoxic activity of S. vulgaris extracts in HepG2 cells. Dried plants were ground and extracted using two different methods, namely an organic solvent-based procedure (using methanol and chloroform), and an environmentally friendly extraction procedure (i.e., aqueous extraction), which mimicked the domestic preparation of herbal teas (5, 15, and 30 min of infusion). Extracts were then tested in HepG2 cells for their cytotoxic and genotoxic potentialities. Results were almost superimposable in both extracts, showing a slight loss in cell viability at the highest concentration tested, and a marked dose-dependent genotoxicity exerted by non-cytotoxic concentrations. It was found that the genotoxic effect is even more pronounced in aqueous extracts, which induced primary DNA damage after five minutes of infusion even at the lowest concentration tested. Given the broad intake of herbal infusions worldwide, this experimental approach might be proposed as a screening tool in the analysis of plant material lots addressed to the herbal infusion market.
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Affiliation(s)
- Mattia Acito
- Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Carla Russo
- Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Cristina Fatigoni
- Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Federica Mercanti
- Sana Pianta Soc. Agricola S.a.s., Strada Tiberina Nord 228, 06134 Perugia, Italy
| | - Massimo Moretti
- Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
- Inter-University Centre for the Environment (CIPLA-Centro Interuniversitario per l’Ambiente), University of Perugia, Piazza Università 1, 06123 Perugia, Italy
| | - Milena Villarini
- Department of Pharmaceutical Sciences, Unit of Public Health, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
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23
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Zan K, Lei W, Li Y, Wang Y, Liu L, Zuo T, Jin H, Ma S. Integrative Metabolomics and Proteomics Detected Hepatotoxicity in Mice Associated with Alkaloids from Eupatorium fortunei Turcz. Toxins (Basel) 2022; 14:toxins14110765. [PMID: 36356015 PMCID: PMC9698670 DOI: 10.3390/toxins14110765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
The traditional Chinese herbal medicine Eupatorium fortunei Turcz. (E. fortunei) has been widely adopted to treat nausea, diabetes, siriasis, and poor appetite. However, E. fortunei contains multiple pyrrolizidine alkaloids (PAs). This study aimed to investigate the hepatotoxicity of total alkaloids in E. fortunei (EFTAs) and identify the toxic mechanisms of EFTAs on hepatocytes. Liquid chromatography with a tandem mass spectrometry assay with reference standards indicated that EFTAs mainly consisted of eight PAs whose content accounted for 92.38% of EFTAs. EFTAs markedly decreased mouse body and liver weights and increased the contents of AST and ALT. The histopathological assays demonstrated that, after exposition to EFTAs, the structures of hepatocytes were damaged and the fibrosis and apoptosis in hepatocytes were accelerated. Moreover, EFTAs increased the serum level of inflammatory cytokines and aggravated circulating oxidative stress. A combination of hepatic proteomics and metabolomics was used to investigate the toxic mechanisms of EFTAs. The study revealed that EFTAs seriously disrupted glycerophospholipid metabolism by upregulating the contents of lysophosphatidylglycerol acyltransferase 1 and phosphatidylinositol and downregulating the contents of choline/ethanolamine kinase beta, choline-ethanolamine phosphotransferase 1, phospholipase D4, 1-acylglycerophosphocholine, phosphatidylcholine, and dihydroxyacetone phosphate in the liver, resulting in detrimental inflammation, fibrosis, and apoptosis. This study revealed that EFTAs induced severe hepatotoxicity by disrupting glycerophospholipid metabolism.
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Affiliation(s)
- Ke Zan
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Wei Lei
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- Correspondence: (W.L.); (S.M.)
| | - Yaolei Li
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Ying Wang
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Lina Liu
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Tiantian Zuo
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Hongyu Jin
- National Institutes for Food and Drug Control, Beijing 102629, China
| | - Shuangcheng Ma
- National Institutes for Food and Drug Control, Beijing 102629, China
- Correspondence: (W.L.); (S.M.)
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24
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Taenzer J, Gehling M, Klevenhusen F, Saltzmann J, Dänicke S, These A. Rumen Metabolism of Senecio Pyrrolizidine Alkaloids May Explain Why Cattle Tolerate Higher Doses Than Monogastric Species. J Agric Food Chem 2022; 70:10111-10120. [PMID: 35948427 PMCID: PMC9413219 DOI: 10.1021/acs.jafc.2c01332] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Rumen metabolism of Senecio pyrrolizidine alkaloids (PAs) and their N-oxide forms was studied by mass spectrometry in in vitro batch culture incubates and confirmed in in vivo samples. Most N-oxides were found to undergo rapid conversion to their corresponding free bases, followed by biotransformation to metabolites hydrogenated at both the necine base and the necic acid moiety. Therefore, rumen metabolism can be considered a detoxification step, as saturated necine base structures are known as the platyphylline type, which is regarded as less or nontoxic. Individual Senecio PAs, such as jacoline, are metabolized slowly during rumen fermentation. PAs that showed limited biotransformation in the rumen in this study also showed limited transformation and CYP-mediated bioactivation in the liver in other studies. This could not only explain why PAs that are comparatively metabolically stable can pass into milk but also suggest that such PAs might be considered compounds of lesser concern.
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Affiliation(s)
- Julian Taenzer
- Department
Safety in the Food Chain, German Federal
Institute for Risk Assessment, 10589 Berlin, Germany
| | - Matthias Gehling
- Department
Safety in the Food Chain, German Federal
Institute for Risk Assessment, 10589 Berlin, Germany
| | - Fenja Klevenhusen
- Department
Safety in the Food Chain, German Federal
Institute for Risk Assessment, 10589 Berlin, Germany
| | - Janine Saltzmann
- Institute
of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research
Institute for Animal Health, 38116 Braunschweig, Germany
| | - Sven Dänicke
- Institute
of Animal Nutrition, Friedrich-Loeffler-Institut, Federal Research
Institute for Animal Health, 38116 Braunschweig, Germany
| | - Anja These
- Department
Safety in the Food Chain, German Federal
Institute for Risk Assessment, 10589 Berlin, Germany
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25
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Prakashrao AS, Beuerle T, Simões ARG, Hopf C, Çiçek SS, Stegemann T, Ober D, Kaltenegger E. The long road of functional recruitment-The evolution of a gene duplicate to pyrrolizidine alkaloid biosynthesis in the morning glories (Convolvulaceae). Plant Direct 2022; 6:e420. [PMID: 35865076 PMCID: PMC9295680 DOI: 10.1002/pld3.420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
In plants, homospermidine synthase (HSS) is a pathway-specific enzyme initiating the biosynthesis of pyrrolizidine alkaloids (PAs), which function as a chemical defense against herbivores. In PA-producing Convolvulaceae ("morning glories"), HSS originated from deoxyhypusine synthase at least >50 to 75 million years ago via a gene duplication event and subsequent functional diversification. To study the recruitment of this ancient gene duplicate to PA biosynthesis, the presence of putative hss gene copies in 11 Convolvulaceae species was analyzed. Additionally, various plant parts from seven of these species were screened for the presence of PAs. Although all of these species possess a putative hss copy, PAs could only be detected in roots of Ipomoea neei (Spreng.) O'Donell and Distimake quinquefolius (L.) A.R.Simões & Staples in this study. A precursor of PAs was detected in roots of Ipomoea alba L. Thus, despite sharing high sequence identities, the presence of an hss gene copy does not correlate with PA accumulation in particular species of Convolvulaceae. In vitro activity assays of the encoded enzymes revealed a broad spectrum of enzyme activity, further emphasizing a functional diversity of the hss gene copies. A recently identified HSS specific amino acid motif seems to be important for the loss of the ancestral protein function-the activation of the eukaryotic initiation factor 5A (eIF5A). Thus, the motif might be indicative for a change of function but allows not to predict the new function. This emphasizes the challenges in annotating functions for duplicates, even for duplicates from closely related species.
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Affiliation(s)
- Arunraj Saranya Prakashrao
- Department Biochemical Ecology and Molecular Evolution, Botanical InstituteChristian‐Albrechts‐UniversityKielGermany
- Present address:
Heart Research Center GöttingenUniversity Medical Center GöttingenGöttingenGermany.
| | - Till Beuerle
- Institute of Pharmaceutical BiologyTechnische Universität BraunschweigBraunschweigGermany
| | - Ana Rita G. Simões
- Royal Botanic Gardens, KewRichmondUK
- Systematic and Evolutionary Botany LabGhent UniversityGhentBelgium
| | - Christina Hopf
- Department of Structural Biology, Zoological InstituteChristian‐Albrechts‐UniversityKielGermany
| | - Serhat Sezai Çiçek
- Department of Pharmaceutical Biology, Pharmaceutical InstituteChristian‐Albrechts‐UniversityKielGermany
| | - Thomas Stegemann
- Department Biochemical Ecology and Molecular Evolution, Botanical InstituteChristian‐Albrechts‐UniversityKielGermany
| | - Dietrich Ober
- Department Biochemical Ecology and Molecular Evolution, Botanical InstituteChristian‐Albrechts‐UniversityKielGermany
| | - Elisabeth Kaltenegger
- Department Biochemical Ecology and Molecular Evolution, Botanical InstituteChristian‐Albrechts‐UniversityKielGermany
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26
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Casado N, Fernández-Pintor B, Morante-Zarcero S, Sierra I. Quick and Green Microextraction of Pyrrolizidine Alkaloids from Infusions of Mallow, Calendula, and Hibiscus Flowers Using Ultrahigh-Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry Analysis. J Agric Food Chem 2022; 70:7826-7841. [PMID: 35714998 PMCID: PMC9930110 DOI: 10.1021/acs.jafc.2c02186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A sustainable microextraction of pyrrolizidine alkaloids (PAs) from edible flower infusions using the innovative μSPEed technique is proposed. Different sorbents and extraction conditions were tested, achieving the highest extraction efficiency with an octadecylsilane sorbent (4 mg). The extraction procedure just took 1 min per sample, and only 300 μL of methanol and 300 μL of the sample were used per extraction. Ultrahigh-performance liquid chromatography coupled to tandem mass spectrometry was used for analysis. The method was properly validated, providing suitable linearity, selectivity, sensitivity (quantification limits 0.3-1 μg/L), overall recoveries (79-97%), and precision (≤17% relative standard deviation). Its application to the analysis of different infusions of mallow, calendula, and hibiscus flowers revealed similar total PA values (23-41 μg/L) and contamination profile among the mallow and hibiscus samples, with predominance of senecionine-type and heliotrine-type PAs, respectively. Conversely, calendula samples showed more variations (23-113 μg/L), highlighting the occurrence of intermedine N-oxide and europine N-oxide on them.
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27
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Klevenhusen F, These A, Taenzer J, Weiß K, Pieper R. Effects of ensiling conditions on pyrrolizidine alkaloid degradation in silages mixed with two different Senecio spp. Arch Anim Nutr 2022; 76:93-111. [PMID: 35766237 DOI: 10.1080/1745039x.2022.2084321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Pyrrolizidine alkaloid (PA) producing plants like Senecio jacobaea or Senecio vernalis are undesirable in fields for forage production, since PA are toxic to animals and humans. Previous studies have shown that ensiling can decrease the PA content in forages; however, no direct comparison of diverse PA from different Senecio spp. under various ensiling conditions has been made. Therefore, it was hypothesised that individual PA might react differently to ensiling, and silage inoculation with Lactobacillus will affect PA degradation because of a quick drop in pH, contrastingly to poor silage qualities resulting from contamination with soil. Laboratory scale grass silages were prepared in a multifactorial design with two levels of dry matter contents, four ensiling treatments and two storage durations (10 and 90 d). For each combination, four replicates were prepared individually. Ensiling treatments were (1) 10 ml water per kg fresh matter as control (CON), (2) 10 ml heterofermentative Lactobacillus buchneri strain LN4637 at 3 · 105 cfu/kg fresh matter plus 25 g molasses/kg fresh matter (LBHE), (3) 10 ml homofermentative lactobacilli at 3 · 105 cfu/kg fresh matter plus 25 g molasses/kg fresh matter (LBHO) and (4) 10 g soil/kg fresh matter (SOIL). Treatments affected formation of fermentation acids. Acetic acid was highest with treatment LBHE, and butyric acid was highest with treatment SOIL. All ensiling treatments effectively reduced total PA content by degrading the PA N-oxide (PANO) fraction. In parallel, though, the fraction of the tertiary base forms increased by around one-tenth of the original PANO content. Contents of jaconine and senkirkine were higher after ensiling than before, with regards to the sum of PA and PANO for jaconine, indicating higher stability or new formation through degradation of other PA. Overall, ensiling offers opportunities to decrease the PA-PANO content in feed and therefore lowers the risk of intoxication by Senecio in livestock.
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Affiliation(s)
- Fenja Klevenhusen
- Department Safety in the Food Chain, The German Federal Institute for Risk Assessment, Berlin, Germany
| | - Anja These
- Department Safety in the Food Chain, The German Federal Institute for Risk Assessment, Berlin, Germany
| | - Julian Taenzer
- Department Safety in the Food Chain, The German Federal Institute for Risk Assessment, Berlin, Germany
| | - Kirsten Weiß
- of Agricultural and Horticultural Science, Humboldt-Universität zu BerlinAlbrecht Daniel Thaer-Institute, Berlin, Germany
| | - Robert Pieper
- Department Safety in the Food Chain, The German Federal Institute for Risk Assessment, Berlin, Germany
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28
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Kowalczyk E, Kwiatek K. Simultaneous Determination of Pyrrolizidine and Tropane Alkaloids in Honey by Liquid Chromatography-mass Spectrometry. J Vet Res 2022; 66:235-43. [PMID: 35892104 DOI: 10.2478/jvetres-2022-0032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 06/20/2022] [Indexed: 11/20/2022] Open
Abstract
Introduction Pyrrolizidine alkaloids (PAs) and tropane alkaloids (TAs) are natural contaminants of honey and respectively hepatoxic and neurotoxic compounds. Because honey is a popular constituent of the human diet, it is relevant to warrant the safety of the product. For that reason, a method for simultaneous determination of PAs and TAs in honey based on liquid chromatography- mass spectrometry was developed. Material and Methods The analytical protocol used sulphuric acid extraction and solid-phase extraction purification. The developed procedure was subjected to validation in terms of linearity, selectivity, repeatability, reproducibility, limits of quantification and determination, matrix effect and uncertainty. A total of 29 honey samples were analysed for the determination of PAs and TAs. Results All the evaluated validation parameters fulfilled the requirements of European Commission Decision 2002/657/EC. At least one of the monitored alkaloids was determined in 52% of the samples. Among the most abundant alkaloids were echimidine, intermedine and lycopsamine. The total PA concentrations ranged from 2.2 to 147.0 μg kg-1. Contrastingly, none of the monitored TAs was detected in the analysed samples. An assessment of the dietary exposure to PAs from the consumption of the contaminated honeys showed that three of them would pose a risk to consumers, especially if they were children. Conclusion A sensitive method suitable for simultaneous determination of PAs and TAs in honey was developed and validated. The analysis of 29 honey samples for PAs and TAs revealed that honey destined for retail could pose a risk to consumers.
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29
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Kaltner F. Fate of Food-Relevant Toxic Plant Alkaloids during Food Processing or Storing and Analytical Strategies to Unveil Potential Transformation Products. J Agric Food Chem 2022; 70:5975-5981. [PMID: 35544324 DOI: 10.1021/acs.jafc.2c01489] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Toxic plant alkaloids (TPAs) may contaminate food and pose a threat to consumer health; as a consequence, they are undesired in foodstuff or food commodities. Similar to other ingredients, TPA may be affected by storing or processing of food, often associated with decreased levels of the parent alkaloids. Up to now, little is known about potential transformation products or if they still may exhibit toxic potential to consumers. This perspective briefly summarizes the current knowledge regarding the behavior of opium, pyrrolizidine, and tropane alkaloids toward processing or storing and highlights analytical strategies to identify and elucidate potential transformation products.
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Affiliation(s)
- Florian Kaltner
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, 35392 Giessen, Germany
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30
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Stefova E, Cvetanoska M, Bogdanov J, Matevski V, Stanoeva JP. Assessment of Distribution and Diversity of Pyrrolizidine Alkaloids in the Most Prevalent Boraginaceae Species in Macedonia. Chem Biodivers 2022; 19:e202200066. [PMID: 35581149 DOI: 10.1002/cbdv.202200066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/17/2022] [Indexed: 11/06/2022]
Abstract
Systematic study of extraction efficiency of pyrrolizidine alkaloids (PAs) and corresponding pyrrolizidine alkaloid N-oxides (PANOs) from plant material for subsequent LC/MS analysis was carried out. The optimal extraction was achieved with methanol and one clean up step using SPE C18 column. With the optimized LC-ESI-MS/MS method using ion trap, the distribution and diversity of PAs and PANOs in plant material (leaves, flowers and stems) obtained from wild-growing E. vulgare, E. italicum, S. officinale L., C. creticum and O. heterophylla species from Macedonia was assessed. These widespread Boraginaceae species contain various PAs and PANOs and 25 of them were identified. Based on these qualitative and quantitative analyses, the profiles of 1,2-unsaturated PAs for each sample were obtained and their toxic potential was estimated. The toxic potential of O. heterophylla and C. creticum were assumed to be highest (containing up to 4753 mg/kg and 3507 mg/kg), followed by E. vulgare (up to 1340 mg/kg), S. officinale L. (up to 479 mg/kg) and E. italicum (up to 16 mg/kg). This method can be used for monitoring the inclusion of these secondary metabolites in the food chain in order to contribute in their risk management.
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Affiliation(s)
- Elena Stefova
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Skopje, R. N. Macedonia
| | - Marinela Cvetanoska
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Skopje, R. N. Macedonia
| | - Jane Bogdanov
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Skopje, R. N. Macedonia
| | - Vlado Matevski
- Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Skopje, R. N. Macedonia.,Macedonian Academy of Sciences and Arts, Krste Misirkov 2, 1000, Skopje, R. N. Macedonia
| | - Jasmina Petreska Stanoeva
- Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Skopje, R. N. Macedonia
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31
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He Y, Long Y, Zhang C, Ma J, Ke C, Tang C, Ye Y, Lin G. Dietary alcohol exacerbates the hepatotoxicity induced by pyrrolizidine alkaloids: Hazard from food contamination. J Hazard Mater 2022; 424:127706. [PMID: 34801312 DOI: 10.1016/j.jhazmat.2021.127706] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/26/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are the most common plant-derived toxins with emerging evidence to contaminate soil, water, nearby plants and derived food products. Outbreaks of human poisoning cases, due to the ingestion of PA-contaminated food, have been reported in various countries including Ethiopia. This study first investigated the contamination of PAs in retail honey in Ethiopia. A striking 77% of honey samples (27/30) were found to contain PAs with the content ranging over 1.5-323.4 μg/kg. Notably, these PAs were also found as contaminants in mead, an alcoholic beverage made from local honey, indicating the transfer of PAs from the primarily contaminated honey into mead. Further toxicological examinations revealed that long-term PA exposure caused vasculature damage, fibrosis, and steatosis in mouse livers, and co-exposure to dietary alcohol exacerbated the PA-induced chronic hepatotoxicity. Furthermore, the study revealed that moderate alcohol intake did not affect the initiation mechanism (hepatic cytochrome P450-mediated bioactivation) of PA-induced hepatotoxicity but significantly disturbed hepatic glutathione homeostasis, thereby increasing oxidative stress in mouse liver and enhancing PA-induced hepatotoxicity. Our findings exemplify the carry-over of PA contamination through the food chain. Precautionary interventions are warranted on the hazardous effects of dietary exposure to PAs, particularly with concomitant alcohol consumption.
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Affiliation(s)
- Yisheng He
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yun Long
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Chunyuan Zhang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jiang Ma
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Changqiang Ke
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, China Academy of Sciences, China
| | - Chunping Tang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, China Academy of Sciences, China
| | - Yang Ye
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, China Academy of Sciences, China
| | - Ge Lin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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32
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Widjaja F, Alhejji Y, Rietjens IMCM. The Role of Kinetics as Key Determinant in Toxicity of Pyrrolizidine Alkaloids and Their N-Oxides. Planta Med 2022; 88:130-143. [PMID: 34741297 PMCID: PMC8807025 DOI: 10.1055/a-1582-9794] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are a large group of plant constituents of which especially the 1,2- unsaturated PAs raise a concern because of their liver toxicity and potential genotoxic carcinogenicity. This toxicity of PAs depends on their kinetics. Differences in absorption, distribution, metabolism, and excretion (ADME) characteristics of PAs may substantially alter the relative toxicity of PAs. As a result, kinetics will also affect relative potency (REP) values. The present review summarizes the current state-of-the art on PA kinetics and resulting consequences for toxicity and illustrates how physiologically-based kinetic (PBK) modelling can be applied to take kinetics into account when defining the relative differences in toxicity between PAs in the in vivo situation. We conclude that toxicokinetics play an important role in the overall toxicity of pyrrolizidine alkaloids. and that kinetics should therefore be considered when defining REP values for combined risk assessment. New approach methodologies (NAMs) can be of use to quantify these kinetic differences between PAs and their N-oxides, thus contributing to the 3Rs (Replacement, Reduction and Refinement) in animal studies.
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Affiliation(s)
- Frances Widjaja
- Division of Toxicology, Wageningen University and Research, The Netherlands
| | - Yasser Alhejji
- Division of Toxicology, Wageningen University and Research, The Netherlands
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
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33
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Senturk H, Eksin E, Zeybek U, Erdem A. Detection of Senecionine in Dietary Sources by Single-Use Electrochemical Sensor. Micromachines (Basel) 2021; 12:1585. [PMID: 34945435 DOI: 10.3390/mi12121585] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/05/2021] [Accepted: 12/17/2021] [Indexed: 11/17/2022]
Abstract
Pyrrolizidine alkaloids (PAs) are produced by plants as secondary compounds that are the most widely distributed natural toxins. There have been many cases of human toxicity caused by consumption of toxic plant species, as herbal teas and grain or grain products contaminated with PA-containing seeds have been reported. Companies that produce dried spices and tea leaves should examine the PA level in their products. For the first time in the literature, a simple and inexpensive electrochemical assay based on a single-use sensor was introduced for quantitative determination of senecionine (SEN) in the most frequently contaminated food sources. SEN was immobilized on a pencil graphite electrode surface by the passive adsorption technique. Differential pulse voltammetry (DPV) was used to evaluate the oxidation signal of SEN, which was observed to be around +0.95 V. The oxidation signal was specific to the SEN in the sample, and the current value was proportional to its concentration. The selectivity of our assay was also tested in the presence of other similar PAs such as intermedine, lycopsamine, and heliotrine. The detection limit is calculated by developed assay and found to be 5.45 µg/mL, which is an acceptable concentration value of SEN occurring at toxic levels for consumers. As an application of the developed sensor in food products, the electrochemical detection of SEN was successfully performed in flour and herbal tea products.
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Wang Z, Han H, Wang C, Zheng Q, Chen H, Zhang X, Hou R. Hepatotoxicity of Pyrrolizidine Alkaloid Compound Intermedine: Comparison with Other Pyrrolizidine Alkaloids and Its Toxicological Mechanism. Toxins (Basel) 2021; 13:849. [PMID: 34941687 DOI: 10.3390/toxins13120849] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/18/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are common secondary plant compounds with hepatotoxicity. The consumption of herbal medicines and herbal teas containing PAs is one of the main causes of hepatic sinusoidal obstruction syndrome (HSOS), a potentially life-threatening condition. The present study aimed to reveal the mechanism underlying the cytotoxicity of intermedine (Im), the main PA in Comfrey. We evaluated the toxicity of the retronecine-type PAs with different structures to cell lines derived from mammalian tissues, including primary mouse hepatocytes, human hepatocytes (HepD), mouse hepatoma-22 (H22) and human hepatocellular carcinoma (HepG2) cells. The cytotoxicity of Im to hepatocyte was evaluated by using cell counting kit-8 assay, colony formation experiment, wound healing assay and dead/live fluorescence imaging. In vitro characterization showed that these PAs were cytotoxic and induced cell apoptosis in a dose-dependent manner. We also demonstrated that Im induced cell apoptosis by generating excessive reactive oxygen species (ROS), changing the mitochondrial membrane potential and releasing cytochrome c (Cyt c) before activating the caspase-3 pathway. Importantly, we directly observed the destruction of the cell mitochondrial structure after Im treatment through transmission electron microscopy (TEM). This study provided the first direct evidence of Im inducing hepatotoxicity through mitochondria-mediated apoptosis. These results supplemented the basic toxicity data of PAs and facilitated the comprehensive and systematic evaluation of the toxicity caused by PA compounds.
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Enge AM, Kaltner F, Gottschalk C, Kin A, Kirstgen M, Geyer J, These A, Hammer H, Pötz O, Braeuning A, Hessel-Pras S. Organic Cation Transporter I and Na + /taurocholate Co-Transporting Polypeptide are Involved in Retrorsine- and Senecionine-Induced Hepatotoxicity in HepaRG cells. Mol Nutr Food Res 2021; 66:e2100800. [PMID: 34826203 DOI: 10.1002/mnfr.202100800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/03/2021] [Indexed: 01/05/2023]
Abstract
SCOPE 1,2-unsaturated pyrrolizidine alkaloids (PAs) are secondary plant metabolites that are found in many plant species throughout the world. They are of concern for risk assessment as consumption of contaminated foodstuff can cause severe liver damage. Of late, transporter-mediated uptake and transport has advanced as a vital determinant of PA toxicity. In this study, the authors investigate a transporter-mediated uptake of PAs and its implications in PA toxicity. METHODS AND RESULTS We show that transporter expression levels are significantly affected by treatment with the PAs senecionine (Sc) and retrorsine (Re) in the human hepatoma cell line HepaRG. Furthermore, the specific contribution to PA uptake of the two transporters Na+ /taurocholate co-transporting polypeptide (SLC10A1) and organic cation transporter I (SLC22A1), both belonging to the heterogeneous solute carrier super family, is investigated by means of a siRNA-mediated knockdown approach. Knockdown of both uptake transporters result in reduced uptake of Re and Sc in a time-dependent manner and attenuated PA-mediated cytotoxic effects in HepaRG cells. CONCLUSION Our results confirm previous findings of active transport mechanisms of PAs into hepatocytes and highlight the importance of toxicokinetic studies for the risk assessment of PAs.
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Affiliation(s)
- Anne-Margarethe Enge
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Florian Kaltner
- Chair of Food Safety and Analytics, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany.,Institute of Food Chemistry and Food Biotechnology, Justus Liebig University of Giessen, Heinrich-Buff-Ring 17-19, 35392, Giessen, Germany
| | - Christoph Gottschalk
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.,Chair of Food Safety and Analytics, Ludwig Maximilian University of Munich, Schoenleutnerstr. 8, 85764, Oberschleissheim, Germany
| | - Angelina Kin
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Michael Kirstgen
- Biomedical Research Center Seltersberg (BFS), Faculty of Veterinary Medicine, Justus Liebig University of Giessen, Schubertstr. 81, 35392, Giessen, Germany
| | - Joachim Geyer
- Biomedical Research Center Seltersberg (BFS), Faculty of Veterinary Medicine, Justus Liebig University of Giessen, Schubertstr. 81, 35392, Giessen, Germany
| | - Anja These
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Helen Hammer
- Signatope GmbH, Markwiesenstr. 55, 72770, Reutlingen, Germany
| | - Oliver Pötz
- Signatope GmbH, Markwiesenstr. 55, 72770, Reutlingen, Germany
| | - Albert Braeuning
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
| | - Stefanie Hessel-Pras
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany
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Ma J, Li M, Li N, Chan WY, Lin G. Pyrrolizidine Alkaloid-Induced Hepatotoxicity Associated with the Formation of Reactive Metabolite-Derived Pyrrole-Protein Adducts. Toxins (Basel) 2021; 13:723. [PMID: 34679016 PMCID: PMC8540779 DOI: 10.3390/toxins13100723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/19/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) with 1,2-unsaturated necine base are hepatotoxic phytotoxins. Acute PA intoxication is initiated by the formation of adducts between PA-derived reactive pyrrolic metabolites with cellular proteins. The present study aimed to investigate the correlation between the formation of hepatic pyrrole-protein adducts and occurrence of PA-induced liver injury (PA-ILI), and to further explore the use of such adducts for rapidly screening the hepatotoxic potency of natural products which contain PAs. Aqueous extracts of Crotalaria sessiliflora (containing one PA: monocrotaline) and Gynura japonica (containing two PAs: senecionine and seneciphylline) were orally administered to rats at different doses for 24 h to investigate PA-ILI. Serum alanine aminotransferase (ALT) activity, hepatic glutathione (GSH) level, and liver histological changes of the treated rats were evaluated to assess the severity of PA-ILI. The levels of pyrrole-protein adducts formed in the rats' livers were determined by a well-established spectrophotometric method. The biological and histological results showed a dose-dependent hepatotoxicity with significantly different toxic severity among groups of rats treated with herbal extracts containing different PAs. Both serum ALT activity and the amount of hepatic pyrrole-protein adducts increased in a dose-dependent manner. Moreover, the elevation of ALT activity correlated well with the formation of hepatic pyrrole-protein adducts, regardless of the structures of different PAs. The findings revealed that the formation of hepatic pyrrole-protein adducts-which directly correlated with the elevation of serum ALT activity-was a common insult leading to PA-ILI, suggesting a potential for using pyrrole-protein adducts to screen hepatotoxicity and rank PA-containing natural products, which generally contain multiple PAs with different structures.
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Affiliation(s)
- Jiang Ma
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 4054577, China; (J.M.); (M.L.); (N.L.); (W.Y.C.)
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510000, China
| | - Mi Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 4054577, China; (J.M.); (M.L.); (N.L.); (W.Y.C.)
| | - Na Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 4054577, China; (J.M.); (M.L.); (N.L.); (W.Y.C.)
| | - Wood Yee Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 4054577, China; (J.M.); (M.L.); (N.L.); (W.Y.C.)
| | - Ge Lin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 4054577, China; (J.M.); (M.L.); (N.L.); (W.Y.C.)
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Zan K, Zhou Y, Li YL, Wang Y, Liu LN, Jin HY, Zuo TT, Ma SC. [Simultaneous determination of six pyrrolizidine alkaloids in different parts of Emilia sonchifolia by UPLC-MS/MS]. Zhongguo Zhong Yao Za Zhi 2021; 46:4456-4461. [PMID: 34581050 DOI: 10.19540/j.cnki.cjcmm.20210623.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study aims to develop a UPLC-MS/MS method for simultaneous determination of six pyrrolizidine alkaloids(PAs)--intermedine N-oxide(ImNO), lycopsamine N-oxide(LyNO), seneciphylline(Sp), seneciphylline N-oxide(SpNO), senecionine N-oxide(SnNO), and senkirkine(Sk) in different parts of Emilia sonchifolia. UPLC conditions are as follows: ACQUITY UPLC HSS T3 column(2.1 mm×100 mm, 1.8 μm), mobile phase consisting of 0.05% formic acid and 2.5 mmol·L~(-1) ammonium formate in water(A)-0.05% formic acid and 2.5 mmol·L~(-1) ammonium formate in acetonitrile(B) for gradient elution. MS conditions are as below: electrospray ionization(ESI) in the positive ion mode, multiple reaction monitoring(MRM), and the content of the six PAs was calculated with the external standard method. The results suggested the differences in the six PAs among different parts of E. sonchifolia. Sk was detected in all the four parts, with similar content. SnNO also existed in all the four parts, but the content in roots was significantly higher than that in other parts. Sp and SpNO were found in both roots and flowers, with the content higher in the former than in the later. ImNO and LyNO were only found in leaves, and the content was low. Among the six components detected, ImNO, LyNO, and SpNO were found and determined for the first time, which enriched the toxic components and laid a scientific basis for the quality and safety evaluation of E. sonchifolia.
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Affiliation(s)
- Ke Zan
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ying Zhou
- NMPA Key Laboratory of Quality Evaluation of Traditional Chinese Medicine (Traditional Chinese Patent Medicine), Zhejiang Institute for Food and Drug Control Hangzhou 310052, China
| | - Yao-Lei Li
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ying Wang
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Li-Na Liu
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Tian-Tian Zuo
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control Beijing 100050, China
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Kwon Y, Koo Y, Jeong Y. Determination of Pyrrolizidine Alkaloids in Teas Using Liquid Chromatography-Tandem Mass Spectrometry Combined with Rapid-Easy Extraction. Foods 2021; 10:2250. [PMID: 34681300 DOI: 10.3390/foods10102250] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 02/07/2023] Open
Abstract
This study developed an analytical method to determine pyrrolizidine alkaloids (PAs) in teas using liquid chromatography–tandem mass spectrometry combined with rapid-easy extraction. PAs were extracted with 40 mL of 0.05 M sulfuric acid in 50% methanol solution and cleaned up using Oasis MCX SPE cartridges. Chromatographic separation of 21 PAs was conducted on an X-Bridge C18 column with gradient elution. According to the AOAC official analysis methods, the developed method was verified to establish linearity, limits of detection, limits of quantification, accuracy, inter-day precision, and intra-day precision for each PA. Overall, the method showed excellent repeatability, sensitivity, and reproducibility. The verified method was applied to tea samples, including maté, lemon balm, fennel, hibiscus, chrysanthemum, lavender, oolong tea, chamomile, rooibos, peppermint, mix tea, black, and green tea. One of the main advantages of the method developed in this study is that it allows complete separation of lycopsamine and intermedine peaks. Therefore, the method could be used to monitor PAs in teas.
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Tea YK, Soong JW, Beaver EP, Lohman DJ. Kleptopharmacophagy: Milkweed butterflies scratch and imbibe from Apocynaceae-feeding caterpillars. Ecology 2021; 102:e03532. [PMID: 34496059 DOI: 10.1002/ecy.3532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/15/2021] [Accepted: 07/08/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Yi-Kai Tea
- School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, 2006, Australia.,Department of Ichthyology, Australian Museum Research Institute, Australian Museum, 1 William Street, Sydney, New South Wales, 2010, Australia
| | | | - Ethan P Beaver
- Biological and Earth Sciences, South Australian Museum, Adelaide, South Australia, 5000, Australia
| | - David J Lohman
- Biology Department, City College of New York, City University of New York, New York, New York, 10031, USA.,Ph.D. Program in Biology, Graduate Center, City University of New York, New York, New York, 10016, USA.,Entomology Section, National Museum of Natural History, 1000, Manila, Philippines
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Zhu L, Zhang CY, Li DP, Chen HB, Ma J, Gao H, Ye Y, Wang JY, Fu PP, Lin G. Tu-San-Qi (Gynura japonica): the culprit behind pyrrolizidine alkaloid-induced liver injury in China. Acta Pharmacol Sin 2021; 42:1212-22. [PMID: 33154553 DOI: 10.1038/s41401-020-00553-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/05/2020] [Indexed: 02/07/2023] Open
Abstract
Herbs and dietary supplement-induced liver injury (HILI) is the leading cause of drug-induced liver injury in China. Among different hepatotoxic herbs, the pyrrolizidine alkaloid (PA)-producing herb Gynura japonica contributes significantly to HILI by inducing hepatic sinusoidal obstruction syndrome (HSOS), a liver disorder characterized by hepatomegaly, hyperbilirubinemia, and ascites. In China, G. japonica has been used as one of the plant species for Tu-San-Qi and is often misused with non-PA-producing Tu-San-Qi (Sedum aizoon) or even San-Qi (Panax notoginseng) for self-medication. It has been reported that over 50% of HSOS cases are caused by the intake of PA-producing G. japonica. In this review, we provide comprehensive information to distinguish these Tu-San-Qi-related herbal plant species in terms of plant/medicinal part morphologies, medicinal indications, and chemical profiles. Approximately 2156 Tu-San-Qi-associated HSOS cases reported in China from 1980 to 2019 are systematically reviewed in terms of their clinical manifestation, diagnostic workups, therapeutic interventions, and outcomes. In addition, based on the application of our developed mechanism-based biomarker of PA exposure, our clinical findings on the definitive diagnosis of 58 PA-producing Tu-San-Qi-induced HSOS patients are also elaborated. Therefore, this review article provides the first comprehensive report on 2214 PA-producing Tu-San-Qi (G. japonica)-induced HSOS cases in China, and the information presented will improve public awareness of the significant incidence of PA-producing Tu-San-Qi (G. japonica)-induced HSOS and facilitate future prevention and better clinical management of this severe HILI.
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Helma C, Schöning V, Drewe J, Boss P. A Comparison of Nine Machine Learning Mutagenicity Models and Their Application for Predicting Pyrrolizidine Alkaloids. Front Pharmacol 2021; 12:708050. [PMID: 34366864 PMCID: PMC8339974 DOI: 10.3389/fphar.2021.708050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/07/2021] [Indexed: 11/17/2022] Open
Abstract
Random forest, support vector machine, logistic regression, neural networks and k-nearest neighbor (lazar) algorithms, were applied to a new Salmonella mutagenicity dataset with 8,290 unique chemical structures utilizing MolPrint2D and Chemistry Development Kit (CDK) descriptors. Crossvalidation accuracies of all investigated models ranged from 80 to 85% which is comparable with the interlaboratory variability of the Salmonella mutagenicity assay. Pyrrolizidine alkaloid predictions showed a clear distinction between chemical groups, where otonecines had the highest proportion of positive mutagenicity predictions and monoesters the lowest.
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Affiliation(s)
| | - Verena Schöning
- Clinical Pharmacology and Toxicology, Department of General Internal Medicine, University Hospital Bern, University of Bern, Inselspital, Bern, Switzerland
| | - Jürgen Drewe
- Max Zeller Söhne AG, Romanshorn, Switzerland.,Department of Clinical Pharmacology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Philipp Boss
- Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
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Zan K, Hu X, Li Y, Wang Y, Jin H, Zuo T, Ma S. Simultaneous determination of eight pyrrolizidine alkaloids in various parts of Eupatorium lindleyanum by ultra high performance liquid chromatography tandem mass spectrometry and risk assessments based on a real-life exposure scenario. J Sep Sci 2021; 44:3237-3247. [PMID: 34240803 DOI: 10.1002/jssc.202100286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 02/02/2023]
Abstract
Pyrrolizidine alkaloids are toxins having hepatotoxic and carcinogenic effects on human health. A ultra high performance liquid chromatography tandem mass spectrometry technique was developed for the first time for the simultaneous determination of eight pyrrolizidine alkaloids, including four diastereoisomers (intermedine, lycopsamine, rinderine, and echinatine) and their respective N-oxide forms, in different parts of Eupatorium lindleyanum. The risk assessment method for pyrrolizidine alkaloids in Eupatorium lindleyanum was explored using the margin of exposure strategy for the first time based on a real-life exposure scenario. Differences were found in all eight pyrrolizidine alkaloids in various parts of Eupatorium lindleyanum. Besides, the total levels of pyrrolizidine alkaloids in Eupatorium lindleyanum followed the order of root > flower > stem > leaf. Moreover, the risk assessment data revealed that the deleterious effects on human health were unlikely at exposure times of less than 200, 37, and 12 days during the lifetimes of Eupatorium lindleyanum leaves, stems, and flowers, respectively. This study reported both the contents of and risk associated with Eupatorium lindleyanum pyrrolizidine alkaloids. The comprehensive application of the novel ultra high performance liquid chromatography tandem mass spectrometry technique alongside the risk assessment approach provided a scientific basis for quality evaluation and rational utilization of toxic pyrrolizidine alkaloids in Eupatorium lindleyanum to improve public health safety.
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Affiliation(s)
- Ke Zan
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Xiaowen Hu
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Yaolei Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, P. R. China
| | - Ying Wang
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Hongyu Jin
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Tiantian Zuo
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
| | - Shuangcheng Ma
- National Institutes for Food and Drug Control, Beijing, 102629, P. R. China
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Trifan A, Wolfram E, Esslinger N, Grubelnik A, Skalicka-Woźniak K, Minceva M, Luca SV. Globoidnan A, rabdosiin and globoidnan B as new phenolic markers in European-sourced comfrey (Symphytum officinale L.) root samples. Phytochem Anal 2021; 32:482-494. [PMID: 33015885 DOI: 10.1002/pca.2996] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 05/25/2023]
Abstract
INTRODUCTION Symphytum officinale L. (comfrey, Boraginaceae) is a cultivated or spontaneously growing medicinal plant that is traditionally used for the treatment of bone fractures, hematomas, muscle pains and joint pains. A wide range of topical preparations and dried roots for ex tempore applications are marketed in European drug stores or pharmacies. OBJECTIVE The aim of this study was to perform the qualitative and quantitative analysis of pyrrolizidine alkaloids (PAs) and phenolic compounds in the hydroethanolic extracts of 16 commercial comfrey root batches purchased from 12 different European countries. METHODS Liquid chromatography hyphenated with high-resolution tandem mass spectrometry (LC-HRMS/MS) was used for the profiling of PAs and phenolic compounds, whereas LC-MS/MS and liquid chromatography with diode array detection (LC-DAD) were used for their quantification. RESULTS 20 PAs (i.e. intermedine, lycopsamine, acetylintermedine, acetyllycopsamine, symphytine, symphytine-N-oxide), 17 phenolic compounds (i.e. caffeic and rosmarinic acids, rabdosiin, globoidnan A, globoidnan B) and 9 nonphenolic compounds (sugars, organic and fatty acids) were fully or partly annotated in the analysed samples. In addition, the quantitative analyses revealed that globoidnan B, rabdosiin and globoidnan A are new phenolic markers that can be used together with rosmarinic acid and PAs for the quality control of commercial comfrey root batches. CONCLUSIONS This study brings new insights into the phytochemical complexity of S. officinale, revealing not only numerous toxic PAs, but also a significant number of valuable phenolic compounds that could contribute to the bioactivities of comfrey-based preparations.
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Affiliation(s)
- Adriana Trifan
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, 700115, Romania
| | - Evelyn Wolfram
- Phytopharmacy and Natural Products Research Group, Zurich University of Applied Sciences, Wädenswil, 8820, Switzerland
| | | | | | - Krystyna Skalicka-Woźniak
- Independent Laboratory of Natural Products Chemistry, Department of Pharmacognosy, Medical University of Lublin, Lublin, 20-093, Poland
| | - Mirjana Minceva
- Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, 85354, Germany
| | - Simon Vlad Luca
- Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Freising, 85354, Germany
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Bessaire T, Ernest M, Christinat N, Carrères B, Panchaud A, Badoud F. High resolution mass spectrometry workflow for the analysis of food contaminants: Application to plant toxins, mycotoxins and phytoestrogens in plant-based ingredients. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:978-996. [PMID: 33861158 DOI: 10.1080/19440049.2021.1902575] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/03/2021] [Indexed: 01/27/2023]
Abstract
An analytical workflow including mass spectral library, generic sample preparation, chromatographic separation, and analysis by high-resolution mass spectrometry (HRMS) was developed to gain insight into the occurrence of plant toxins, mycotoxins and phytoestrogens in plant-based food. This workflow was applied to 156 compounds including 90 plant toxins (pyrrolizidine alkaloids, tropane alkaloids, glycoalkaloids, isoquinoline alkaloids and aristolochic acids), 54 mycotoxins (including ergot alkaloids and Alternaria toxins) and 12 phytoestrogens (including isoflavones, lignans and coumestan) in plant-based protein ingredients, cereal and pseudo-cereal products. A mass spectral library was built based on fragmentation spectra collected at 10 different collision energies in both positive and negative ionisation modes for each toxin. Emphasis was put on a generic QuEChERS-like sample preparation followed by ultra-high-pressure liquid chromatography using alkaline mobile phase allowing the separation of more than 50 toxic pyrrolizidine alkaloids. HRMS acquisition comprised a full-scan event for toxins detection followed by data-dependent MS2 for toxin identification against mass spectrum. Method performance was evaluated using fortified samples in terms of sensitivity, repeatability, reproducibility and recovery. All toxins were positively identified at levels ranging from 1 µg kg-1 to 100 µg kg-1. Quantitative results obtained by a standard addition approach met SANTE/12682/2019 criteria for 132 out of 156 toxins. Such a workflow using generic, sensitive and selective multi-residue method allows a better insight into the occurrence of regulated and non-regulated toxins in plant-based foods and to conduct safety evaluation and risk assessments when needed.
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Affiliation(s)
- Thomas Bessaire
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | - Marion Ernest
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | | | - Benoit Carrères
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
| | | | - Flavia Badoud
- Nestlé Research, Société des Produits Nestlé SA, Lausanne, Switzerland
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Abstract
Safety in use of jamu consumption, as part of traditional medicine from Indonesia, is dependent on the complete and adequate assessment of potential hazards and risks of the botanicals and botanical constituents included. This includes especially hazards and risks related to the presence in jamu of active pharmaceutical ingredients (APIs) as well as of constituents that are genotoxic and carcinogenic. The present review presents an overview of the current state-of-the art on these hazards and risks based on case reports on adulteration, and the actual detection of genotoxic and carcinogenic ingredients of concern in jamu. Based on the overview thus obtained, it appears that drug-adulteration presents important hazards responsible for potential adverse effects, due to overdosing. The potential hazards of exposure to APIs mainly relate to the presence of constituents that may cause liver damage, renal impairment, kidney failure, steroid dependence or genotoxicity and carcinogenicity. For these APIs, a risk characterisation was performed based on comparison of health-based guidance values (HBGVs) and exposure, while for the genotoxic carcinogens the margin of exposure (MOE) approach was used. Results of this risk characterisation should be used by risk managers to impose specification for constituents of health concern to protect consumers. It is concluded that to manage the risks identified and further improve the safety in use of jamu, a collaboration between farmers, manufacturer/producers, academia, government, health professionals, and consumers is indicated.
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Affiliation(s)
- Suparmi Suparmi
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands.,Department of Biology, Faculty of Medicine, Universitas Islam Sultan Agung, Semarang, Indonesia
| | - Dasep Wahidin
- Badan Pengawas Obat dan Makanan RI, Jakarta, Indonesia
| | - Ivonne M C M Rietjens
- Division of Toxicology, Wageningen University and Research, Wageningen, The Netherlands
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Glück J, Henricsson M, Braeuning A, Hessel-Pras S. The Food Contaminants Pyrrolizidine Alkaloids Disturb Bile Acid Homeostasis Structure-Dependently in the Human Hepatoma Cell Line HepaRG. Foods 2021; 10:1114. [PMID: 34069968 DOI: 10.3390/foods10051114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 11/18/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are a group of secondary plant metabolites being contained in various plant species. The consumption of contaminated food can lead to acute intoxications in humans and exert severe hepatotoxicity. The development of jaundice and elevated bile acid concentrations in blood have been reported in acute human PA intoxication, indicating a connection between PA exposure and the induction of cholestasis. Additionally, it is considered that differences in toxicity of individual PAs is based on their individual chemical structures. Therefore, we aimed to elucidate the structure-dependent disturbance of bile acid homeostasis by PAs in the human hepatoma cell line HepaRG. A set of 14 different PAs, including representatives of all major structural characteristics, namely, the four different necine bases retronecine, heliotridine, otonecine and platynecine and different grades of esterification, was analyzed in regard to the expression of genes involved in bile acid synthesis, metabolism and transport. Additionally, intra- and extracellular bile acid levels were analyzed after PA treatment. In summary, our data show significant structure-dependent effects of PAs on bile acid homeostasis. Especially PAs of diester type caused the strongest dysregulation of expression of genes associated with cholestasis and led to a strong decrease of intra- and extracellular bile acid concentrations.
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47
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Cen P, Ding J, Jin J. Hepatic sinusoidal obstruction syndrome caused by the ingestion of Gynura segetum in a patient with alcoholic cirrhosis: a case report. J Int Med Res 2021; 49:300060520980649. [PMID: 33845617 PMCID: PMC8047090 DOI: 10.1177/0300060520980649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Hepatic sinusoidal obstruction syndrome (HSOS) is a rare hepatic vascular disorder characterized by intrahepatic congestion, liver injury, and post-sinusoidal portal hypertension, and it is frequently associated with hematopoietic stem cell transplantation. In this study, we observed a case of HSOS associated with the ingestion of Gynura segetum, a pyrrolizidine alkaloid (PA)-containing Chinese herb, in a patient with alcoholic cirrhosis. The patient was a 43-year-old man with chief complaints of physical asthenia and a loss of appetite for more than a month. The diagnosis of HSOS combined with alcoholic cirrhosis was confirmed via the histopathological examination of liver tissues. With proper supportive and symptomatic care and anticoagulation therapy using low-molecular-weight heparin, the patient’s condition was stabilized. Because of its nonspecific symptoms in the early stage and a lack of information about PA consumption, PA-induced HSOS (PA-HSOS) has been long neglected, especially in patients with underlying liver diseases. Early identification and intervention are critical for optimizing outcomes. Further efforts are needed to supervise the use of PA-containing herbal medicines and identify accurate biomarkers for PA-HSOS.
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Affiliation(s)
- Panpan Cen
- Department of Infectious Diseases, Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jiexia Ding
- Department of Infectious Diseases, Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Jie Jin
- Department of Infectious Diseases, Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
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48
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Long F, Ji J, Wang X, Wang L, Chen T. LC-MS/MS method for determination of seneciphylline and its metabolite, seneciphylline N-oxide in rat plasma, and its application to a rat pharmacokinetic study. Biomed Chromatogr 2021; 35:e5145. [PMID: 33886121 DOI: 10.1002/bmc.5145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/02/2021] [Accepted: 04/19/2021] [Indexed: 01/16/2023]
Abstract
A rapid and sensitive ultra-performance liquid chromatography-tandem electrospray ionization mass spectrometry (UPLC-ESI/MS) method was established and validated for simultaneous determination of seneciphylline and its main metabolite in rat plasma. The plasma sample was prepared by simple methanol-mediated precipitation. Chromatographic separation was achieved within 3 min by gradient elution using acetonitrile and water containing 0.1% formic acid as mobile phase on a Waters ACQUITY BEH C18 column (100 × 2.1 mm, i.d. 1.7 μm). Quantitation was conducted in a positive multiple reaction monitoring mode. The linearity of the method was over the range of 1-1,000 ng/mL, with the lower limit of quantification of 1 ng/mL. The intra- and inter-day precision and accuracy, extraction recovery, and matrix effect of analytes were within the acceptable limit. The analytes were stable during the process of sample collection, preparation, and analysis. The validated method was further applied to a pharmacokinetic study of seneciphylline in rats after oral and intravenous administration. The results revealed that seneciphylline was quickly absorbed into plasma (Tmax , 0.23-0.32 h) and reached the maximum concentration of 0.82-1.75 μg/mL after oral administration. Both seneciphylline and seneciphylline N-oxide were eliminated from plasma quickly. The low system exposure (oral bioavailability, 5.43-10.31%) was related to the extensive metabolism in the liver and microflora.
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Affiliation(s)
- Feng Long
- Department of Pharmacy, Maternal and Child Health Care Hospital of Zaozhuang, Zaozhuang, China
| | - Jie Ji
- Department of Pharmacy, Maternal and Child Health Center of Dezhou, Dezhou, China
| | - Xin Wang
- Department of Pharmacy, Maternal and Child Health Care Hospital of Zaozhuang, Zaozhuang, China
| | - Lili Wang
- Department of Pharmacy, Maternal and Child Health Care Hospital of Zaozhuang, Zaozhuang, China
| | - Ting Chen
- Department of Pharmacy, Maternal and Child Health Care Hospital of Zaozhuang, Zaozhuang, China
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49
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Liu JH, Yang H, Zhang L, Peng XR, Li ZJ, He MY, Wan LS, Li ZR, Zhou L, Liu ZH, Qiu MH. Pyrrolizidine alkaloids from the seeds of Scleropyrum wallichianum. J Asian Nat Prod Res 2021; 23:407-413. [PMID: 32228193 DOI: 10.1080/10286020.2020.1740919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Two new pyrrolizidine alkaloids, sclerwalins A and B (1 and 2), and one known 9-O-E-hydroxysenecioylretronecine (3) were first isolated from the seeds of Scleropyrum wallichianum. Their chemical structures were elucidated by extensive 1 D NMR and 2 D NMR (HSQC, HMBC, COSY, and ROESY), MS and IR spectra. Cytotoxicities of all isolates were evaluated against five human tumor cell lines (HL-60, A-549, SMMC-7721, MCF-7 and SW480).[Formula: see text].
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Affiliation(s)
- Jun-Hong Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
| | - Han Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
- College of Traditional Chinese Medicine, Yunnan University of TCM, Kunming 650500, China
| | - Ling Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tabacco Yunnan Industrial Co., Ltd., Kunming 650204, China
| | - Xing-Rong Peng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
| | - Zhen-Jie Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tabacco Yunnan Industrial Co., Ltd., Kunming 650204, China
| | - Mei-Ying He
- Research Center for Development and Utilization of Tropical Agricultural Products, Yunnan Institute of Tropical Crops, Jinghong 666100, China
| | - Luo-Sheng Wan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
| | - Zhong-Rong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
| | - Lin Zhou
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tabacco Yunnan Industrial Co., Ltd., Kunming 650204, China
| | - Zhi-Hua Liu
- Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tabacco Yunnan Industrial Co., Ltd., Kunming 650204, China
| | - Ming-Hua Qiu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
- College of Traditional Chinese Medicine, Yunnan University of TCM, Kunming 650500, China
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50
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Graikou K, Damianakos H, Ganos C, Sykłowska-Baranek K, Jeziorek M, Pietrosiuk A, Roussakis C, Chinou I. Chemical Profile and Screening of Bioactive Metabolites of Rindera graeca (A. DC.) Bois. & Heldr. (Boraginaceae) In Vitro Cultures. Plants (Basel) 2021; 10:834. [PMID: 33919433 PMCID: PMC8143363 DOI: 10.3390/plants10050834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 12/05/2022]
Abstract
Rindera graeca is a rare endemic plant where in vitro culture has been used in order to investigate bioactive metabolites. Phytochemical study of the in vitro shoots and hairy roots led to the isolation of seven phenolic derivatives and the unusual furano-naphthoquinone rinderol. R. graeca was also analyzed for its pyrrolizidine alkaloids content by LC-MS, and it was found to contain echinatine together with echinatine and rinderine N-oxides. Rinderol, isolated only from in vitro hairy root culture for the first time in the genus, revealed promising bioactivities. It was evaluated in vitro against a panel of microorganisms, showing very strong activity specifically against Gram-positive bacteria (MIC values 0.98 × 10-2-1.18 µg/mL) as well as very interesting antiproliferative effect against the human non-small-cell bronchopulmonary carcinoma cell line NSCLC-N6-L16 and the epidermoid lung cancer cell line A549. These findings were compared with the chemical profile of the plant from nature, while this study is the first to report on the effects of R. graeca extracts obtained from in vitro culture, providing a valuable contribution to the scientific community towards this sustainable method of production of potential bioactive molecules.
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Affiliation(s)
- Konstantia Graikou
- Lab of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Zografou, 15771 Athens, Greece; (K.G.); (H.D.); (C.G.)
| | - Harilaos Damianakos
- Lab of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Zografou, 15771 Athens, Greece; (K.G.); (H.D.); (C.G.)
| | - Christos Ganos
- Lab of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Zografou, 15771 Athens, Greece; (K.G.); (H.D.); (C.G.)
| | - Katarzyna Sykłowska-Baranek
- Department of Pharmaceutical Biology and Medicinal Plant Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland; (K.S.-B.); (M.J.); (A.P.)
| | - Małgorzata Jeziorek
- Department of Pharmaceutical Biology and Medicinal Plant Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland; (K.S.-B.); (M.J.); (A.P.)
| | - Agnieszka Pietrosiuk
- Department of Pharmaceutical Biology and Medicinal Plant Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland; (K.S.-B.); (M.J.); (A.P.)
| | - Christos Roussakis
- IICi MED/EA 1155- Dept Cancer du Poumon et Cbles Moleculaires, UFR Sciences Pharmaceutiques- 9 rue Bias, CEDEX 1, 44035 Nantes, France;
| | - Ioanna Chinou
- Lab of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Zografou, 15771 Athens, Greece; (K.G.); (H.D.); (C.G.)
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