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Ng CYJ, Zhao Y, Wang N, Chia KL, Teo CH, Peh W, Yeo P, Zhong LLD. A multi-center cross-sectional study of Chinese Herbal Medicine-Drug adverse reactions using active surveillance in Singapore's Traditional Chinese Medicine clinics. Chin Med 2024; 19:44. [PMID: 38454483 PMCID: PMC10918936 DOI: 10.1186/s13020-024-00915-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 02/27/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND This study aimed to investigate the rates and causality of patient-reported adverse events (AEs) associated with concomitant Chinese Herbal Medicine (CHM) and Western Medicine prescription drug (WMPD) consumption through active surveillance in Singapore's Traditional Chinese Medicine (TCM) clinics. METHODS A cross-sectional study was conducted at five TCM clinics across Singapore from 8th May till 8th July 2023. Patients were screened to determine rates of CHM and WMPD consumption, and then interviewed if an AE was reported. An expert committee assessed the AE reports to determine causality. Along with descriptive statistics, odds ratios were calculated to determine AE occurrence likelihoods for patients who consumed both CHM and WMPD compared to CHM consumption alone. RESULTS 1028 patients were screened and 62.65% of them reported concurrent CHM-WMPD consumption. Patients who consumed CHM and WMPD were 3.65 times more likely to experience an AE as compared to CHM consumption alone. 18 AE reports were adjudicated, with most AEs deemed unlikely due to CHM consumption. CONCLUSIONS A large proportion of patients consumed CHM and WMPD concurrently, thus increasing their risk of experiencing AEs compared to those consuming CHM only. Active surveillance is applicable for detecting AEs, collecting data for causality assessment, and analysis.
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Affiliation(s)
- Chester Yan Jie Ng
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
| | - Yan Zhao
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore
| | - Ning Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Kwan Leung Chia
- Woodcroft Medical Centre, 1 Sir James Hardy Way, Woodcroft, SA, 5162, Australia
| | - Chun Huat Teo
- Singapore Thong Chai Medical Institution, 50 Chin Swee Road #01-01, Singapore, 169874, Singapore
| | - William Peh
- Operation and Medical Department, Singapore Chung Hwa Medical Institution, 640 Lorong 4 Toa Payoh, Singapore, 319522, Singapore
| | - Pansy Yeo
- Chong Hoe Healthcare, 144 Upper Bukit Timah Rd, #02-14, Singapore, 588177*, Singapore
| | - Linda L D Zhong
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.
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Assad J, Cho S, Dileo V, Gascoigne G, Hubberstey AV, Patterson D, Williams R. Contaminated sediment in the Detroit River provokes acclimated responses in wild brown bullhead (Ameiurus nebulosus) populations. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106772. [PMID: 38039693 DOI: 10.1016/j.aquatox.2023.106772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 12/03/2023]
Abstract
In a previous study, adaptive responses to a single polycyclic aromatic hydrocarbon (PAH), benzo[a]pyrene (BaP), were identified in brown bullhead (Ameiurus nebulosus) captured from contaminated sites across the Great Lakes. The tumor suppressor p53 and phase I toxin metabolizing CYP1A genes showed a elevated and refractory response, respectively, up to the F1 generation (Williams and Hubberstey, 2014). As an extension to the first study, bullhead were exposed to sediment collected from sites along the Detroit River to see if these adaptive responses are attainable when fish from a contaminated site are exposed to a mixture of contaminants, instead of a single compound. p53 and CYP1A proteins were measured again with the addition of phase II glutathione-s-transferase (GST) activity in the present study. Three treatment groups were measured: acute (treated immediately), cleared (depurated for three months and subsequent treatment), and farm raised F1 offspring. All three treatment groups were exposed to clean and contaminated sediment for 24 and 96 h. Acute fish from contaminated sites exposed to contaminated sediment revealed an initial elevated p53 response that did not persist in fish after long-term contaminated sediment exposure. Acute fish from contaminated sites exposed to contaminated sediment revealed refractory CYP1A expression, which disappeared in cleared fish and whose F1 response overlapped with clean site F1 offspring. Decreasing GST activity was evident in both clean and contaminated fish over time, and only clean site fish responded to long-term contaminated sediment deliberately with increasing GST activity. Because p53 and CYP1A gene expression and GST activity responses did not overlap between contaminated fish treatment groups, our study suggests that contaminated fish have acclimated to the contaminants present in their environments and no evidence of adaptation could be detected within these biomarkers.
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Affiliation(s)
- J Assad
- The College of Wooster 1189 Beall Ave., Wooster, Ohio 44691, United States
| | - S Cho
- Department of Biology, University of Windsor, Windsor, ON N9B3P4, Canada
| | - V Dileo
- The College of Wooster 1189 Beall Ave., Wooster, Ohio 44691, United States
| | - G Gascoigne
- The College of Wooster 1189 Beall Ave., Wooster, Ohio 44691, United States
| | - A V Hubberstey
- Department of Biolomedical Sciences, University of Windsor, Windsor, ON N9B3P4, Canada
| | - D Patterson
- The College of Wooster 1189 Beall Ave., Wooster, Ohio 44691, United States
| | - R Williams
- Department of Biology, University of Windsor, Windsor, ON N9B3P4, Canada.
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Ouyang L, Fan Z, He Y, Tan L, Deng G, He Q, He Y, Ouyang T, Li C, Zhang Q, Liu H, Zuo Y. 4-hydroxylonchocarpin and corylifol A: The potential hepatotoxic components of Psoralea corylifolia L. Toxicol Lett 2023; 385:31-41. [PMID: 37598872 DOI: 10.1016/j.toxlet.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Psoralea corylifolia L. (P. corylifolia) has attracted increasing attention because of its potential hepatotoxicity. In this study, we used network analysis (toxic component and hepatotoxic target prediction, proteinprotein interaction, GO enrichment analysis, KEGG pathway analysis, and molecular docking) to predict the components and mechanism of P. corylifolia-induced hepatotoxicity and then selected 4-hydroxylonchocarpin and corylifol A for experimental verification. HepG2 cells were treated with low, medium, and high concentrations of 4-hydroxylonchocarpin or corylifol A. The activities of ALT, AST, and LDH in cell culture media and the MDA level, SOD activity, and GSH level in cell extracts were measured. Moreover, apoptosis, ROS levels, and mitochondrial membrane potential were evaluated. The results showed that the activities of ALT, AST, and LDH in the culture medium increased, and hepatocyte apoptosis increased. The level of MDA increased, and the activity of SOD and level of GSH decreased, and the ROS level increased with 4-hydroxylonchocarpin and corylifol A intervention. Furthermore, the mitochondrial membrane potential decreased in the 4-hydroxylonchocarpin and corylifol A groups. This study suggests that 4-hydroxylonchocarpin and corylifol A cause hepatocyte injury and apoptosis by inducing oxidative stress and mitochondrial dysfunction, suggesting that these compounds may be the potential hepatotoxic components of P. corylifolia.
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Affiliation(s)
- Linqi Ouyang
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China; School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Zhiqiang Fan
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yang He
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Long Tan
- Department of Pharmacy, People's Hospital of Yizhang County, Chenzhou, China
| | - Guoyan Deng
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Qin He
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yiran He
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Ting Ouyang
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Congjie Li
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Qin Zhang
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Hongyu Liu
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China.
| | - Yajie Zuo
- Department of Pharmacy, The First Hospital of Hunan University of Chinese Medicine, Changsha, China.
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Pulegone and Eugenol Oral Supplementation in Laboratory Animals: Results from Acute and Chronic Studies. Biomedicines 2022; 10:biomedicines10102595. [PMID: 36289857 PMCID: PMC9599722 DOI: 10.3390/biomedicines10102595] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
Essential oils are natural compounds used by humans for scientific purposes due to their wide range of properties. Eugenol is mostly present in clove oil, while pulegone is the main constituent of pennyroyal oil. To guarantee the safe use of eugenol and pulegone for both humans and animals, this study addressed, for the first time, the effects of these compounds, at low doses (chronic toxicity) and high doses (acute toxicity), in laboratory animals. Thirty-five FVB/n female mice were randomly assigned to seven groups (n = 5): group I (control, non-additive diet); group II (2.6 mg of eugenol + 2.6 mg of pulegone); group III (5.2 mg of eugenol + 5.2 mg of pulegone); group IV (7.8 mg of eugenol + 7.8 mg of pulegone); group V (7.8 mg of eugenol); group VI (7.8 mg of pulegone); and group VII (1000 mg of eugenol + 1000 mg of pulegone). The compounds were administered in the food. Groups I to VI were integrated into the chronic toxicity study, lasting 28 days, and group VII was used in the acute toxicity study, lasting 7 days. Animals were monitored to assess their general welfare. Water and food intake, as well as body weight, were recorded. On the 29th day, all animals were euthanized by an overdose of ketamine and xylazine, and a complete necropsy was performed. Blood samples were collected directly from the heart for microhematocrit and serum analysis, as well as for comet assay. Organs were collected, weighed, and fixed in formaldehyde for further histological analysis and enzymatic assay. Eugenol and pulegone induced behavioral changes in the animals, namely in the posture, hair appearance and grooming, and in mental status. These compounds also caused a decrease in the animals’ body weight, as well as in the food and water consumption. A mortality rate of 20% was registered in the acute toxicity group. Both compounds modulated the serum levels of triglycerides and alanine aminotransferase. Eugenol and pulegone induced genetic damage in all animals. Eugenol increased the activity of the CAT enzyme. Both compounds increased the GR enzyme at the highest dose. Moreover, pulegone administered as a single compound increased the activity of the GST enzyme. Histopathological analysis revealed inflammatory infiltrates in the lungs of groups II, III, and IV. The results suggest that eugenol and pulegone may exert beneficial or harmful effects, depending on the dose, and if applied alone or in combination.
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Pan H, Chen L, Zhai G, Luo Q, Fang C, Shi F. Feature MS fragments-based method for identification of toxic furanoids in biological samples. J Pharm Biomed Anal 2022; 221:115035. [PMID: 36150298 DOI: 10.1016/j.jpba.2022.115035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022]
Abstract
Numerous furan-containing compounds have been reported to be toxic. The toxicity may be attributed to the metabolic activation of the furan ring to cis-enediones. Identification of unknown furans that undergo bioactivation is challenging. Here, we present a novel approach that enables non-targeted profiling of bioactivation of unknown furanoids both in vitro and in vivo. Cyclic pyrrole-glutathione conjugate was the predominant product of cis-enediones with glutathione. The shared glutathione substructure of conjugates was capable of generating four constant and signature fragments under collision-induced dissociation (CID) in the mass spectrometer, including neutral loss fragments 103.0269 Da and 146.0691 Da and product ions at m/z 130.0499 and 177.0328. The unique structure and high abundance of conjugates in combination with the consistency and specificity of CID fragmentation brought extraordinarily high selectivity and reliability for the four fragments as a fingerprint of bioactivated furanoids. The bioactivated furanoids can be identified by screening the four fragments in high-resolution MS/MS datasets using the neutral loss filtering and diagnostic fragmentation filtering of data post-acquisition software MZmine. The simultaneous formation of four individual signal points in the filtering channel with the same precursor ion and retention time was assigned to be furanoids. The method has been rigorously validated. In the pooled urine samples from nine model furanoids-treated mice, nine cis-enediones from the parent furanoids and two from furanoid metabolites were accurately detected and identified. The method showed great performance in non-targeted profiling bioactivated furanoids and their metabolites in urine samples of herbal extract-treated mice.
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Affiliation(s)
- Hong Pan
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China; Department of Clinical Pharmacy, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China; Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Lin Chen
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| | - Guohong Zhai
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| | - Qi Luo
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| | - Chao Fang
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China; Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Fuguo Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China.
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Yi O, Lin Y, Hu M, Hu S, Su Z, Liao J, Liu B, Liu L, Cai X. Lactate metabolism in rheumatoid arthritis: Pathogenic mechanisms and therapeutic intervention with natural compounds. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 100:154048. [PMID: 35316725 DOI: 10.1016/j.phymed.2022.154048] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/26/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a common chronic and systemic autoimmune disease characterized by persistent inflammation and hyperplasia of the synovial membrane, the degradation of cartilage, and the erosion of bones in diarthrodial joints. The inflamed joints of patients with RA have been recognized to be a site of hypoxic microenvironment which results in an imbalance of lactate metabolism and the accumulation of lactate. Lactate is no longer considered solely a metabolic waste product of glycolysis, but also a combustion aid in the progression of RA from the early stages of inflammation to the late stages of bone destruction. PURPOSE To review the pathogenic mechanisms of lactate metabolism in RA and investigate the potential of natural compounds for treating RA linked to the regulation of imbalance in lactate metabolism. METHODS Research advances in our understanding of lactate metabolism in the pathogenesis of RA and novel pharmacological approaches of natural compounds by targeting lactate metabolic signaling were comprehensively reviewed and deeply discussed. RESULTS Lactate produced by RA synovial fibroblasts (RASFs) acts on targeted cells such as T cells, macrophages, dendritic cells and osteoclasts, and affects their differentiation, activation and function to accelerate the development of RA. Many natural compounds show therapeutic potential for RA by regulating glycolytic rate-limiting enzymes to limit lactate production, and affecting monocarboxylate transporter and acetyl-CoA carboxylase to inhibit lactate transport and conversion. CONCLUSION Regulation of imbalance in lactate metabolism offers novel therapeutic approaches for RA, and natural compounds capable of targeting lactate metabolic signaling constitute potential candidates for development of drugs RA.
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Affiliation(s)
- Ouyang Yi
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Ye Lin
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Mingyue Hu
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Shengtao Hu
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Zhaoli Su
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Jin Liao
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
| | - Bin Liu
- College of Biology, Hunan University, Changsha, Hunan 410082, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 030027, China
| | - Xiong Cai
- Institute of Innovation and Applied Research in Chinese Medicine and Department of Rheumatology of The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China
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Wojtunik-Kulesza KA. Toxicity of Selected Monoterpenes and Essential Oils Rich in These Compounds. Molecules 2022; 27:molecules27051716. [PMID: 35268817 PMCID: PMC8912113 DOI: 10.3390/molecules27051716] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 12/22/2022] Open
Abstract
Monoterpenes make up the largest group of plant secondary metabolites. They can be found in numerous plants, among others, the Lamiaceae family. The compounds demonstrate antioxidative, antibacterial, sedative and anti-inflammatory activity, hence, they are often employed in medicine and pharmaceuticals. Additionally, their fragrant character is often made use of, notably in the food and cosmetic industries. Nevertheless, long-lasting studies have revealed their toxic properties. This fact has led to a detailed analysis of the compounds towards their side effects on the human organism. Although most are safe for human food and medical applications, there are monoterpene compounds that, in certain amounts or under particular circumstances (e.g., pregnancy), can cause serious disorders. The presented review characterises in vitro and in vivo, the toxic character of selected monoterpenes (α-terpinene, camphor, citral, limonene, pulegone, thujone), as well as that of their original plant sources and their essential oils. The selected monoterpenes reveal various toxic properties among which are embryotoxic, neurotoxic, allergenic and genotoxic. It is also known that the essential oils of popular plants can also reveal toxic characteristics that many people are unaware of.
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Chen F, Wang L, Zhai X, Wang N, Qin Y, Zhu C, Wu S, Lu Y. Effect of capsaicin on breast cancer resistance protein (Bcrp/Abcg2) and pharmacokinetics of probe substrates in rats. Xenobiotica 2022; 52:209-217. [PMID: 35345975 DOI: 10.1080/00498254.2021.2025281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Fen Chen
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liu Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xuejia Zhai
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Nanxi Wang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanjie Qin
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chaoran Zhu
- Department of Pharmacy, Shenzhen University General Hospital, Shenzhen 518055, China
| | - Sanlan Wu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yongning Lu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Thakkar Y, Moustakas H, Api AM, Smith B, Williams G, Greim H, Eisenbrand G, Dekant W. Assessment of the genotoxic potential of mintlactone. Food Chem Toxicol 2021; 159:112659. [PMID: 34801651 DOI: 10.1016/j.fct.2021.112659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/29/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Abstract
Mintlactone (chemical name 3,6-dimethyl-5,6,7,7a-tetrahydro-1-benzofuran-2(4H)-one, CAS Number 13341-72-5) is a fragrance and flavor ingredient with reported uses in many different cosmetics, personal care, and household products. In order to evaluate the genotoxic potential of mintlactone, in vitro and in vivo genotoxicity tests were conducted. Results from bacterial mutagenicity tests varied across different batches of differing purity with positive results observed in TA98 only. An in vivo comet assay was also considered to be positive in livers of female mice but negative in male mice. In contrast, in vitro and in vivo micronucleus tests, as well as 3D skin comet/micronucleus tests, were negative, indicating no chromosomal or DNA damage. The underlying causes for these contradictory results are not clear. It appears that the purity and/or stability of the test material may be an issue. In the absence of dependable scientific information on the purity and/or storage stability of mintlactone, its safety for use as a fragrance ingredient cannot be substantiated.
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Affiliation(s)
- Yax Thakkar
- Research Institute for Fragrance Materials, Inc. Woodcliff Lake, NJ, USA.
| | - Holger Moustakas
- Research Institute for Fragrance Materials, Inc. Woodcliff Lake, NJ, USA
| | - Anne Marie Api
- Research Institute for Fragrance Materials, Inc. Woodcliff Lake, NJ, USA
| | - Benjamin Smith
- Future Ready Food Safety Hub, Nanyang Technological University, Singapore; Innovations in Food & Chemical Safety Programme, Agency for Science, Technology & Research, Singapore
| | - Gary Williams
- Prof. Emeritus New York Medical College, Valhalla, NY, USA
| | - Helmut Greim
- Prof. Emeritus of Toxicology Technical University of Munich, USA
| | - Gerhard Eisenbrand
- Senior Research Professor of Food Chemistry and Toxicology, University of Kaiserslautern, Germany
| | - Wolfgang Dekant
- Professor of Toxicology at the Department of Pharmacology and Toxicology of the University of Würzburg, Germany
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The Effect of Crude Extract and Fractions of Teucrium polium L. on the Brain, Liver, and Kidney of Male Rats. Jundishapur J Nat Pharm Prod 2021. [DOI: 10.5812/jjnpp.112160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Teucrium polium (TP) is a medicinal plant with a long history of consumption as a folk remedy for curing many diseases, including diabetes, common cold, obesity, anxiety, etc. Objectives: The present study aimed at investigating the effects of TP crude extracts (TPCE), as well as its diethyl ether (DE) and petroleum ether (PE) fractions, on the brain, kidney, and liver tissue of male rats in the subchronic phase. Methods: In the study, 45 adult male Wistar rats were randomly assigned to five groups as the PBS (receiving phosphate buffer saline), vehicle (receiving dimethyl sulfoxide), as well as CE, PE, and DE receiving 3 mg/kg (100 µL) TPCE, PE, and DE, respectively, for six weeks. Histopathological examinations by hematoxylin and eosin staining investigated morphological changes in all specimens. Also, the brain samples were stained by the immunohistochemistry (IHC) technique with Ki-67, CD31, p53, Nestin, and GFAP markers. Results: The findings showed that the prolonged consumption of TP caused the formation of histological lesions as apoptosis, degeneration, cytoplasmic vacuolization of neurons, and foamy cells in the brain. The liver, displayed cytoplasmic vacuolization, apoptosis, degeneration, and dilated sinusoids. Moreover, TP led to atrophy, vacuolization, and necrosis in renal cells. IHC studies evidenced an increase in the expression of P53, whereas the expression of Ki67 and CD31 decreased. It should be noted that TP crude extract and fractions were toxic; however, the PE fraction was more cytotoxic than others. Conclusions: The study findings indicated that long-term administration of a sublethal dose of TP impairs cellular integrity in vital orangs, including the liver, brain, and kidney, through triggering the cell death mechanisms.
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Silva KF, Peruchetti DB, Sirtoli GM, Takiya CM, Pinheiro AAS, Leal-Cardoso JH, Caruso-Neves C. High Doses of Essential Oil of Croton Zehntneri Induces Renal Tubular Damage. PLANTS 2021; 10:plants10071400. [PMID: 34371603 PMCID: PMC8309426 DOI: 10.3390/plants10071400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/10/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022]
Abstract
The essential oil of Croton zehntneri (EOCZ) and its major compounds are known to have several biological activities. However, some evidence shows potential toxic effects of high doses of EOCZ (>300 mg/kg) in amphibian and human kidneys. The aim of the present work was to investigate the effects on renal function of EOCZ at 300 mg/kg/day in healthy Swiss mice and a subclinical acute kidney injury (subAKI) animal model, which presents tubule-interstitial injury (TII). Four experimental groups were generated: (1) CONT group (control); (2) EOCZ, mice treated with EOCZ; (3) subAKI; (4) subAKI+EOCZ, subAKI treated simultaneously with EOCZ. EOCZ treatment induced TII measured by increases in (1) proteinuria; (2) cortical tubule-interstitial space; (3) macrophage infiltration; (4) collagen deposition. A decrease in tubular sodium reabsorption was also observed. These results were similar and nonadditive to those observed in the subAKI group. These data suggest that treatment with EOCZ at higher concentrations induces TII in mice, which could be mediated by protein overload in the proximal tubule.
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Affiliation(s)
- Katarine F. Silva
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Ceará 60.740-000, Brazil;
| | - Diogo B. Peruchetti
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
| | - Gabriela M. Sirtoli
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
| | - Christina M. Takiya
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
| | - Ana Acacia S. Pinheiro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
| | | | - Celso Caruso-Neves
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21.941-902, Brazil; (K.F.S.); (D.B.P.); (G.M.S.); (C.M.T.); (A.A.S.P.)
- Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ, Rio de Janeiro 21.045-900, Brazil
- National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro 21.941-902, Brazil
- Correspondence: ; Tel.: +55-213-938-6582
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12
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Masisi K, Masamba R, Lashani K, Li C, Kwape TE, Gaobotse G. Antioxidant, Cytotoxicity and Cytoprotective Potential of Extracts of Grewia Flava and Grewia Bicolor Berries. J Pharmacopuncture 2021; 24:24-31. [PMID: 33833897 PMCID: PMC8010423 DOI: 10.3831/kpi.2021.24.1.24] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/07/2020] [Accepted: 03/04/2021] [Indexed: 12/02/2022] Open
Abstract
Objectives Accumulation of cellular reactive oxygen species (ROS) leads to oxidative stress. Increased production of ROS, such as superoxide anion, or a deficiency in their clearance by antioxidant defences, mediates cellular pathology. Grewia Spp fruits are a source of bioactive compounds and have notable antioxidant activity. Although the antioxidant capacity of Grewia Spp has been studied, there is very limited evidence that links the antioxidant activities of Grewia bicolor and Grewia flava to the inhibition of free radical formation associated with damage in biological systems. Methods This study evaluated the protective effects of Grewia bicolor and Grewia flava extracts against free radical-induced oxidative stress and the resulting cytotoxicity effect using HeLa cells. Antioxidant properties determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and total phenolic content (TPC) assays showed significantly higher (p < 0.05) antioxidant activity in Grewia flava (ethanol extract) than Grewia flava (water extract) and Grewia bicolor (ethanol and water extracts). Results Using 3-(4,5-dimethylthiazol-2-yl)-2,5diphenyltetrazolium bromide or MTT assay, cytotoxicity results showed that extracts of Grewia bicolor and Grewia flava were less toxic to HeLa cells at tested concentrations compared to the untreated control. This confirmed the low toxicity of these edible fruits at the tested concentrations in HeLa cells. Furthermore, hydrogen peroxide (H2O2)-induced cell loss was effectively reduced by pre-incubating HeLa cells with Grewia bicolor and Grewia flava extracts, with Grewia flava (ethanol extract) revealing better protection. Conclusion The effect was speculated to be associated with the higher antioxidant activity of Grewia flava (ethanol extract). Additional studies will warrant confirmation of the mechanism of action of such effects.
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Affiliation(s)
- Kabo Masisi
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Riach Masamba
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Keletso Lashani
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Chunyang Li
- Department of Nutrition and Health, Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Tebogo E Kwape
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Goabaone Gaobotse
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
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13
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Dosoky NS, Setzer WN. Maternal Reproductive Toxicity of Some Essential Oils and Their Constituents. Int J Mol Sci 2021; 22:2380. [PMID: 33673548 PMCID: PMC7956842 DOI: 10.3390/ijms22052380] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 11/16/2022] Open
Abstract
Even though several plants can improve the female reproductive function, the use of herbs, herbal preparations, or essential oils during pregnancy is questionable. This review is focused on the effects of some essential oils and their constituents on the female reproductive system during pregnancy and on the development of the fetus. The major concerns include causing abortion, reproductive hormone modulation, maternal toxicity, teratogenicity, and embryo-fetotoxicity. This work summarizes the important studies on the reproductive effects of essential oil constituents anethole, apiole, citral, camphor, thymoquinone, trans-sabinyl acetate, methyl salicylate, thujone, pulegone, β-elemene, β-eudesmol, and costus lactone, among others.
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Affiliation(s)
| | - William N. Setzer
- Aromatic Plant Research Center, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA;
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Li H, Peng Y, Zheng J. Dioscorea bulbifera L.-induced hepatotoxicity and involvement of metabolic activation of furanoterpenoids. Drug Metab Rev 2020; 52:568-584. [DOI: 10.1080/03602532.2020.1800724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hui Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, China
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University,Guiyang, China
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15
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Pan H, Yang F, Xiang D, Shi F. Simultaneous quantification of atractyloside and carboxyatractyloside in rat plasma by LC-MS/MS: Application to a pharmacokinetic study after oral administration of Xanthii Fructus extract. J Sep Sci 2019; 43:590-597. [PMID: 31701660 DOI: 10.1002/jssc.201900888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/22/2019] [Accepted: 11/03/2019] [Indexed: 11/07/2022]
Abstract
Xanthii Fructus is extensively used as an herbal medicine. Ingestion of this herb is associated with severe hepatotoxicity and nephrotoxicity. Atractyloside and carboxyatractyloside are two dominative toxic constituents in Xanthii Fructus. However, their pharmacokinetic study is lacking. In this study, a novel high-performance liquid chromatography-tandem mass spectrometry method was developed to simultaneously quantify the rat plasma concentrations of atractyloside and carboxyatractyloside. After protein precipitation, the analytes were chromatographic separated on a ZORBAX Eclipse Plus column (2.1 × 150 mm id, 5 µm) under gradient elute. In the negative electrospray ionization mode, the transitions at m/z 725.3→645.4 for atractyloside, m/z 769.3→689.4 for carboxyatractyloside, and m/z 479.2→121.1 for paeoniflorin (the internal standard) were acquired by multiple reaction monitoring. This analytical method showed good linearity over 1-500 ng/mL for atractyloside and 2-500 ng/mL for carboxyatractyloside with acceptable precision and accuracy. No matrix effect, instability and carryover occurred in the analysis procedure. The extraction recoveries were greater than 85.0%. This method was applied to a preliminary pharmacokinetic study by orally administering Xanthii Fructus extract (9 g/kg) to rats, which was useful to evaluate the role of these two compounds in Xanthii Fructus-induced toxicity.
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Affiliation(s)
- Hong Pan
- Department of clinical pharmacy, School of pharmacy, Zunyi Medical University, Zunyi, P. R. China.,Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, P. R. China
| | - Feng Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, P. R. China
| | - Daiyuan Xiang
- Department of clinical pharmacy, School of pharmacy, Zunyi Medical University, Zunyi, P. R. China
| | - Fuguo Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, P. R. China
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16
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Wen B, Gorycki P. Bioactivation of herbal constituents: mechanisms and toxicological relevance. Drug Metab Rev 2019; 51:453-497. [DOI: 10.1080/03602532.2019.1655570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bo Wen
- Department of Drug Metabolism and Pharmacokinetics, GlaxoSmithKline, Collegeville, PA, USA
| | - Peter Gorycki
- Department of Drug Metabolism and Pharmacokinetics, GlaxoSmithKline, Collegeville, PA, USA
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17
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Mentha: A genus rich in vital nutra‐pharmaceuticals—A review. Phytother Res 2019; 33:2548-2570. [DOI: 10.1002/ptr.6423] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 05/20/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022]
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18
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Marabini L, Galli CL, La Fauci P, Marinovich M. Effect of plant extracts on the genotoxicity of 1′-hydroxy alkenylbenzenes. Regul Toxicol Pharmacol 2019; 105:36-41. [DOI: 10.1016/j.yrtph.2019.03.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 10/27/2022]
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19
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Prediction of human drug-induced liver injury (DILI) in relation to oral doses and blood concentrations. Arch Toxicol 2019; 93:1609-1637. [PMID: 31250071 DOI: 10.1007/s00204-019-02492-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/22/2019] [Indexed: 01/09/2023]
Abstract
Drug-induced liver injury (DILI) cannot be accurately predicted by animal models. In addition, currently available in vitro methods do not allow for the estimation of hepatotoxic doses or the determination of an acceptable daily intake (ADI). To overcome this limitation, an in vitro/in silico method was established that predicts the risk of human DILI in relation to oral doses and blood concentrations. This method can be used to estimate DILI risk if the maximal blood concentration (Cmax) of the test compound is known. Moreover, an ADI can be estimated even for compounds without information on blood concentrations. To systematically optimize the in vitro system, two novel test performance metrics were introduced, the toxicity separation index (TSI) which quantifies how well a test differentiates between hepatotoxic and non-hepatotoxic compounds, and the toxicity estimation index (TEI) which measures how well hepatotoxic blood concentrations in vivo can be estimated. In vitro test performance was optimized for a training set of 28 compounds, based on TSI and TEI, demonstrating that (1) concentrations where cytotoxicity first becomes evident in vitro (EC10) yielded better metrics than higher toxicity thresholds (EC50); (2) compound incubation for 48 h was better than 24 h, with no further improvement of TSI after 7 days incubation; (3) metrics were moderately improved by adding gene expression to the test battery; (4) evaluation of pharmacokinetic parameters demonstrated that total blood compound concentrations and the 95%-population-based percentile of Cmax were best suited to estimate human toxicity. With a support vector machine-based classifier, using EC10 and Cmax as variables, the cross-validated sensitivity, specificity and accuracy for hepatotoxicity prediction were 100, 88 and 93%, respectively. Concentrations in the culture medium allowed extrapolation to blood concentrations in vivo that are associated with a specific probability of hepatotoxicity and the corresponding oral doses were obtained by reverse modeling. Application of this in vitro/in silico method to the rat hepatotoxicant pulegone resulted in an ADI that was similar to values previously established based on animal experiments. In conclusion, the proposed method links oral doses and blood concentrations of test compounds to the probability of hepatotoxicity.
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Hu L, Wu F, He J, Zhong L, Song Y, Shao H. Cytotoxicity of safrole in HepaRG cells: studies on the role of CYP1A2-mediated ortho-quinone metabolic activation. Xenobiotica 2019; 49:1504-1515. [PMID: 30865484 DOI: 10.1080/00498254.2019.1590882] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Linlin Hu
- The Pharmaceutical Department, Nanjing Zhong-da Hospital, School of Medicine, Southeast University, Nanjing, P.R. China
| | - Fei Wu
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Jie He
- The Pharmaceutical Department, Nanjing Zhong-da Hospital, School of Medicine, Southeast University, Nanjing, P.R. China
| | - Lingjun Zhong
- The Pharmaceutical Department, Nanjing Zhong-da Hospital, School of Medicine, Southeast University, Nanjing, P.R. China
| | - Yifan Song
- The Pharmaceutical Department, Nanjing Zhong-da Hospital, School of Medicine, Southeast University, Nanjing, P.R. China
| | - Hua Shao
- The Pharmaceutical Department, Nanjing Zhong-da Hospital, School of Medicine, Southeast University, Nanjing, P.R. China
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21
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Role of Gut Microbiota in the Pharmacological Effects of Natural Products. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:2682748. [PMID: 31118952 PMCID: PMC6500626 DOI: 10.1155/2019/2682748] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/31/2019] [Accepted: 04/09/2019] [Indexed: 02/08/2023]
Abstract
Increasing evidence has demonstrated that natural products derived from traditional Chinese medicine, such as ginseng, berberine, and curcumin, possess a wide variety of biological activities on gut microbiota, which may cause changes in the composition of intestinal microbiota, microbial metabolites, intestinal tight junction structure, and mucosal immunology. These changes will eventually result in the exertion of the pharmacological effects by treatment with these natural products. In this review, we will discuss how gut microbiota is influenced by commonly used natural products. Furthermore, our findings are expected to provide novel insight into how these untargeted natural products function via gut microbiota.
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22
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Borse SP, Singh DP, Nivsarkar M. Understanding the relevance of herb-drug interaction studies with special focus on interplays: a prerequisite for integrative medicine. Porto Biomed J 2019; 4:e15. [PMID: 31595257 PMCID: PMC6726296 DOI: 10.1016/j.pbj.0000000000000015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 05/11/2018] [Indexed: 12/16/2022] Open
Abstract
Integrative medicine refers to the blending of conventional and evidence-based complementary medicines and therapies with the aim of using the most appropriate of either or both modalities for ultimate patient benefits. One of the major hurdles for the same is the chances of potential herb–drug interactions (HDIs). These HDIs could be beneficial or harmful, or even fatal; therefore, a thorough understanding of the eventualities of HDIs is essential so that a successful integration of the modern and complementary alternative systems of medicine could be achieved. Here, we summarize all the important points related to HDIs, including types, tools/methods for study, and prediction of the HDIs, along with a special focus on interplays between drug metabolizing enzymes and transporters. In addition, this article covers future perspective, with a focus on background endogenous players of interplays and approaches to predict the drug–disease–herb interactions so as to fetch the desired effects of these interactions.
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Affiliation(s)
- Swapnil P Borse
- Department of Pharmacology and Toxicology, B.V. Patel Pharmaceutical Education and Research Development (PERD) Centre, Thaltej.,NIRMA University, Sarkhej-Gandhinagar Highway, Ahmadabad, Gujarat, India
| | - Devendra P Singh
- Department of Pharmacology and Toxicology, B.V. Patel Pharmaceutical Education and Research Development (PERD) Centre, Thaltej.,NIRMA University, Sarkhej-Gandhinagar Highway, Ahmadabad, Gujarat, India
| | - Manish Nivsarkar
- Department of Pharmacology and Toxicology, B.V. Patel Pharmaceutical Education and Research Development (PERD) Centre, Thaltej
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23
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Farrington R, Musgrave IF, Byard RW. Evidence for the efficacy and safety of herbal weight loss preparations. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2019; 17:87-92. [PMID: 30738773 DOI: 10.1016/j.joim.2019.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 12/14/2018] [Indexed: 12/19/2022]
Abstract
Rising rates of obesity across the globe have been associated with an increase in the use of herbal preparations for weight control. However, the mechanisms of action for these substances are often not known, as is the potential for interaction with other herbal preparations or prescription pharmaceutical drugs. To investigate the reported efficacy and safety of herbal weight loss preparations, we conducted a review of the literature focusing on herbs that are most commonly used in weight loss preparations, specifically, Garcinia cambogia, Camellia sinensis, Hoodia gordonii, Citrus aurantium and Coleus forskohlii. There was no clear evidence that the above herbal preparations would cause sustained long-term weight loss in humans in the long term. Serious illness and even death have occasionally resulted from the use of herbal weight loss preparations. Few clinical trials have been undertaken to evaluate the efficacy and/or safety of herbal weight loss preparations. In addition, potential issues of herb-herb and herb-drug interactions are often not considered. Regulation of these products is much less rigorous than for prescription medications, despite documented cases of associated hepatotoxicity.
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Affiliation(s)
- Rachael Farrington
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia 5005, Australia.
| | - Ian F Musgrave
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Roger W Byard
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia 5005, Australia; Forensic Science SA, Adelaide, South Australia 5000, Australia
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24
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Khorsandi L, Oroojan AA. Toxic effect of Tropaeolum majus L. leaves on spermatogenesis in mice. JBRA Assist Reprod 2018; 22:174-179. [PMID: 29949321 PMCID: PMC6106639 DOI: 10.5935/1518-0557.20180035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 04/01/2018] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE To evaluate the hydroethanolic extract toxicity, obtained from Tropaeolum majus L. (TM) on mouse testicular tissue. METHOD In this experimental study, we used 32 male NMRI mice. The experimental groups received 75, 375 and 750 mg/kg of TM extract, respectively. Twenty-four hours after the last experimental day, serum samples were collected for hormonal measurement. Then, the cauda of epididymis and testis were removed for sperm count and histopathological assessments. RESULTS Testosterone serum and testicular levels decreased in 750 mg/kg in the treated group when compared to the control animals (1.65±0.25; p=0.041 and 98.83±8.67; p=0.034 respectively). Histopathological criteria such as epithelial vacuolization (9.3±1.1; p=0.034), sloughing (4.3±0.4; p=0.027) and detachment (12.2±0.9; p=0.031) of germ cells were significantly increased in 750 mg/kg in the treated mice. In addition, there were no significant changes in histopathological criteria; sperm head numbers, Johnsen's scoring, and morphometry assessments were carried out in the 75 and 375 mg/kg treated mice. At the dose of 750 mg/kg, the seminiferous tubule diameter (193.2±4.6; p=0.019), seminiferous epithelium height (139.2±5.1; p=0.023), and maturation arrest were significantly decreased in this group. CONCLUSION In conclusion, TM extract has toxic effects on the mouse testicular tissue in high doses. Hence, we recommend caution concerning its consumption by patients with reproductive problems.
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Affiliation(s)
- Layasadat Khorsandi
- Department of Anatomical Sciences, Faculty of Medicine, Cellular and
Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz,
Iran
| | - Ali Akbar Oroojan
- Department of Physiology, Faculty of Medicine, Student Research
Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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25
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Martins C, Rueff J, Rodrigues AS. Genotoxic alkenylbenzene flavourings, a contribution to risk assessment. Food Chem Toxicol 2018; 118:861-879. [DOI: 10.1016/j.fct.2018.06.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/09/2018] [Accepted: 06/12/2018] [Indexed: 12/16/2022]
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26
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Bolton JL, Dunlap TL, Dietz BM. Formation and biological targets of botanical o-quinones. Food Chem Toxicol 2018; 120:700-707. [PMID: 30063944 PMCID: PMC6643002 DOI: 10.1016/j.fct.2018.07.050] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 01/12/2023]
Abstract
The formation of o-quinones from direct 2-electron oxidation of catechols and/or two successive one electron oxidations could explain the cytotoxic/genotoxic and/or chemopreventive effects of several phenolic botanical extracts. For example, poison ivy contains urushiol, an oily mixture, which is oxidized to various o-quinones likely resulting in skin toxicity through oxidative stress and alkylation mechanisms resulting in immune responses. Green tea contains catechins which are directly oxidized to o-quinones by various oxidative enzymes. Alternatively, phenolic botanicals could be o-hydroxylated by P450 to form catechols in vivo which are oxidized to o-quinones. Examples include, resveratrol which is oxidized to piceatannol and further oxidized to the o-quinone. Finally, botanical o-quinones can be formed by O-dealkylation of O-alkoxy groups or methylenedioxy rings resulting in catechols which are further oxidized to o-quinones. Examples include safrole, eugenol, podophyllotoxin and etoposide, as well as methysticin. Once formed these o-quinones have a variety of biological targets in vivo resulting in various biological effects ranging from chemoprevention - > no effect - > toxicity. This U-shaped biological effect curve has been described for a number of reactive intermediates including o-quinones. The current review summarizes the latest data on the formation and biological targets of botanical o-quinones.
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Affiliation(s)
- Judy L Bolton
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States.
| | - Tareisha L Dunlap
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States
| | - Birgit M Dietz
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781), College of Pharmacy, University of Illinois at Chicago, 833S. Wood Street, Chicago, IL, 60612-7231, United States
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Truong T, Jones KS. Capsaicin reduces PLGA-induced fibrosis by promoting M2 macrophages and suppressing overall inflammatory Response. J Biomed Mater Res A 2018; 106:2424-2432. [DOI: 10.1002/jbm.a.36436] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 03/29/2018] [Accepted: 04/05/2018] [Indexed: 12/12/2022]
Affiliation(s)
- T. Truong
- Department of Chemical Engineering; McMaster University; Hamilton ON Canada
| | - K. S. Jones
- Department of Chemical Engineering; McMaster University; Hamilton ON Canada
- School of Biomedical Engineering; McMaster University; Hamilton ON Canada
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Feng WY, Wen J, Stauber K. In vitro Drug Metabolism Investigation of 7-Ethoxycoumarin in Human, Monkey, Dog and Rat Hepatocytes by High Resolution LC-MS/MS. Drug Metab Lett 2018; 12:33-53. [PMID: 29669508 PMCID: PMC6416465 DOI: 10.2174/1872312812666180418142056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/18/2018] [Accepted: 04/12/2018] [Indexed: 11/22/2022]
Abstract
Background: Recently, it has been an increasing concern on the bioactivation and adverse re-actions associated with consumption of herbal and nature products. 7-Ethoxycoumarin is one of coumarin family compounds, but little information is available regarding its potential reactive metabolites. Method: 7-ethoxylcoumarin was incubated individually with human, monkey, dog and rat hepatocytes for 2 hr, metabolites were detected, identified and characterized using high resolution liquid chromagraphy – tandem mass spectrometry. Results: Twenty-eight metabolites (M1 - M28) were detected and identified. O-deethylation, glucuronida-tion, sulfation, oxygenation, oxidative ring-opening, hydrogenation, glutathionation, dehydrogenation, cysteination, glucosidation, methylation, and hydrolysis were observed. At least sixteen metabolites not reported previously, were newly identified. M1 (O-deethylation, mono-oxygenation and glucuronidation), M3 (O-deethylation and glucuronidation), M5 (hydrolysis and mono-oxygenation), M14 (O-deethylation), M16 (hydrolysis), M22 (oxidative ring-opening and oxygenation) and M27 (mono-oxygenation) exhibited high mass spectrometric responses in human hepatocytes. M3, M5, M8, M13 (mono-oxygenation), M14, M16, M18 (O-deethylation and sulfation), M22 and M27 exhibited high mass spectrometric responses in monkey hepatocytes. M14, M16, M18, M20 (glutathionation and dehy-drogenation) and M27 exhibited high mass spectrometric responses in dog hepatocytes. M1 (O-deethylation, mono-oxygenation and glucuronidation), M3, M5, M13, M14, M16, M17 (cysteination), M18, M20, and M22 exhibited high mass spectrometric responses in rat hepatocytes. Conclusion: Most of new metabolites via oxidative ring-opening and glutathionation were identified. Species differences in metabolism of 7-ethoxylcoumarin in hepatocytes were observed. The analysis of metabolites suggests that 7-ethoxylcoumarin may undergo 3,4-epoxidation responsible for formation of glutathione and its derived cysteine conjugates, carboxylic acid and its glucuronides, glucosides and sul-fate.
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Affiliation(s)
- Wan-Yong Feng
- Drug Metabolism and Pharmacokinetics, Dart NeuroScience, San Diego, CA 92131, United States
| | - Jenny Wen
- Drug Metabolism and Pharmacokinetics, Dart NeuroScience, San Diego, CA 92131, United States
| | - Kathe Stauber
- Drug Metabolism and Pharmacokinetics, Dart NeuroScience, San Diego, CA 92131, United States
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Rapid identification of herbal compounds derived metabolites using zebrafish larvae as the biotransformation system. J Chromatogr A 2017; 1515:100-108. [DOI: 10.1016/j.chroma.2017.07.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 11/24/2022]
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Lamola SM, Dzoyem JP, Botha F, van Wyk C. Anti-bacterial, free radical scavenging activity and cytotoxicity of acetone extracts of Grewia flava. Afr Health Sci 2017; 17:790-796. [PMID: 29085407 PMCID: PMC5656210 DOI: 10.4314/ahs.v17i3.22] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Bacterial infections of the gastrointestinal tract (GIT) cause vomiting, diarrhoea and even systemic disease. There is a need for the development of natural products into alternative and safer medicines. Objectives This study evaluated the anti-microbial activity of extracts prepared from berries, leaves, bark and roots of the edible plant Grewia flava. Methods The anti-bacterial activity was evaluated by the broth microdilution method. Anti-oxidant activity of the most active extracts was performed by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. The cytotoxicity of the extracts was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Results The acetone extracts of the leaves and roots showed the best activity with MIC values as low as 0.03 mg/mL against Staphylococcus aureus and Salmonella typhimurium and 0.07 mg/mL against Bacillus cereus, Escherichia coli and Staphylococcus aureus. Quantitative analysis of the scavenging ability showed that acetone extracts exhibited good free radical scavenging activity in a dose-dependent manner. The berries extract had the highest LC50 (lowest toxicity) of 551.68 68 µg/mL. Conclusion Acetone extract of leaves and roots of Grewia flava contain anti-microbial and anti-oxidant compounds and could therefore be used as a natural product with little toxicity to host cells.
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Affiliation(s)
- Stella Makgabo Lamola
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, Pretoria, South Africa
| | - Jean Paul Dzoyem
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, Pretoria, South Africa
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Francien Botha
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, Pretoria, South Africa
| | - Candice van Wyk
- Department of Community Dentistry, Faculty ofHealth Sciences, University of Pretoria, Pretoria, P. O. Box 1266, Pretoria 0001, South Africa
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Pápay ZE, Kósa A, Böddi B, Merchant Z, Saleem IY, Zariwala MG, Klebovich I, Somavarapu S, Antal I. Study on the Pulmonary Delivery System of Apigenin-Loaded Albumin Nanocarriers with Antioxidant Activity. J Aerosol Med Pulm Drug Deliv 2017; 30:274-288. [DOI: 10.1089/jamp.2016.1316] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- Zsófia Edit Pápay
- Department of Pharmaceutics, Semmelweis University, Budapest, Hungary
| | - Annamária Kósa
- Department of Plant Anatomy, Institute of Biology, Eötvös Lóránd University, Budapest, Hungary
| | - Béla Böddi
- Department of Plant Anatomy, Institute of Biology, Eötvös Lóránd University, Budapest, Hungary
| | - Zahra Merchant
- Department of Pharmaceutics, UCL School of Pharmacy, London, United Kingdom
| | - Imran Y Saleem
- Formulation and Drug Delivery Research, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Mohammed Gulrez Zariwala
- Department of Biomedical Science, Faculty of Science and Technology, University of Westminster, London, United Kingdom
| | - Imre Klebovich
- Department of Pharmaceutics, Semmelweis University, Budapest, Hungary
| | | | - István Antal
- Department of Pharmaceutics, Semmelweis University, Budapest, Hungary
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Zhang Z, Liu R, Pu X, Sun Y, Zhao X. Evaluation of the sub-chronic toxicity of a standardized flavonoid extract of safflower in rats. Regul Toxicol Pharmacol 2017; 85:98-107. [DOI: 10.1016/j.yrtph.2017.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 11/30/2022]
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Božović M, Ragno R. Calamintha nepeta (L.) Savi and its Main Essential Oil Constituent Pulegone: Biological Activities and Chemistry. Molecules 2017; 22:E290. [PMID: 28216606 PMCID: PMC6155702 DOI: 10.3390/molecules22020290] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/06/2017] [Indexed: 11/17/2022] Open
Abstract
Medicinal plants play an important role in the treatment of a wide range of diseases, even if their chemical constituents are not always completely recognized. Observations on their use and efficacy significantly contribute to the disclosure of their therapeutic properties. Calamintha nepeta (L.) Savi is an aromatic herb with a mint-oregano flavor, used in the Mediterranean areas as a traditional medicine. It has an extensive range of biological activities, including antimicrobial, antioxidant and anti-inflammatory, as well as anti-ulcer and insecticidal properties. This study aims to review the scientific findings and research reported to date on Calamintha nepeta (L.) Savi that prove many of the remarkable various biological actions, effects and some uses of this species as a source of bioactive natural compounds. On the other hand, pulegone, the major chemical constituent of Calamintha nepeta (L.) Savi essential oil, has been reported to exhibit numerous bioactivities in cells and animals. Thus, this integrated overview also surveys and interprets the present knowledge of chemistry and analysis of this oxygenated monoterpene, as well as its beneficial bioactivities. Areas for future research are suggested.
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Affiliation(s)
- Mijat Božović
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Rino Ragno
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
- Alchemical Dynamics s.r.l., 00125 Rome, Italy.
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Wang J, Qi P, Hou J, Shen Y, Yang M, Bi Q, Deng Y, Shi X, Feng R, Feng Z, Wu W, Guo D. The profiling of the metabolites of hirsutine in rat by ultra-high performance liquid chromatography coupled with linear ion trap Orbitrap mass spectrometry: An improved strategy for the systematic screening and identification of metabolites in multi-samples in vivo. J Pharm Biomed Anal 2016; 134:149-157. [PMID: 27915192 DOI: 10.1016/j.jpba.2016.11.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 11/16/2016] [Accepted: 11/20/2016] [Indexed: 10/20/2022]
Abstract
Drug metabolites identification and construction of metabolic profile are meaningful work for the drug discovery and development. The great challenge during this process is the work of the structural clarification of possible metabolites in the complicated biological matrix, which often resulting in a huge amount data sets, especially in multi-samples in vivo. Analyzing these complex data manually is time-consuming and laborious. The object of this study was to develop a practical strategy for screening and identifying of metabolites from multiple biological samples efficiently. Using hirsutine (HTI), an active components of Uncaria rhynchophylla (Gouteng in Chinese) as a model and its plasma, urine, bile, feces and various tissues were analyzed with data processing software (Metwork), data mining tool (Progenesis QI), and HR-MSn data by ultra-high performance liquid chromatography/linear ion trap-Orbitrap mass spectrometry (U-HPLC/LTQ-Orbitrap-MS). A total of 67 metabolites of HTI in rat biological samples were tentatively identified with established library, and to our knowledge most of which were reported for the first time. The possible metabolic pathways were subsequently proposed, hydroxylation, dehydrogenation, oxidation, N-oxidation, hydrolysis, reduction and glucuronide conjugation were mainly involved according to metabolic profile. The result proved application of this improved strategy was efficient, rapid, and reliable for metabolic profiling of components in multiple biological samples and could significantly expand our understanding of metabolic situation of TCM in vivo.
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Affiliation(s)
- Jianwei Wang
- College of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 210009, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China; School of Chemical and Biological Engineering, Nantong Vocational University, Nantong 226007, China
| | - Peng Qi
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Jinjun Hou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Yao Shen
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Min Yang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Qirui Bi
- College of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 210009, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Yanping Deng
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Xiaojian Shi
- College of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 210009, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Ruihong Feng
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Zijin Feng
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China
| | - Wanying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China.
| | - Dean Guo
- College of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing 210009, China; Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Haike Road 501, Shanghai 201203, China.
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Anti-inflammatory and antiedematogenic activity of the Ocimum basilicum essential oil and its main compound estragole: In vivo mouse models. Chem Biol Interact 2016; 257:14-25. [PMID: 27474066 DOI: 10.1016/j.cbi.2016.07.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/17/2016] [Accepted: 07/24/2016] [Indexed: 01/09/2023]
Abstract
The genus Ocimum are used in cooking, however, their essential oils are utilized in traditional medicine as aromatherapy. The present study was carried out to investigate the chemical composition and systemic anti-inflammatory activity of the Ocimum basilicum essential oil (EOOB) and its major component estragole, as well as its possible mechanisms of action. The Ocimum basilicum essential oil was obtained by hydrodistillation and analyzed by GC-MS. The anti-inflammatory action was verified using acute and chronic in vivo tests as paw edema, peritonitis, and vascular permeability and granulomatous inflammation model. The anti-inflammatory mechanism of action was analyzed by the participation of histamine and arachidonic acid pathways. The chemical profile analysis identified fourteen components present in the essential oil, within them: estragole (60.96%). The in vivo test results show that treatment with EOOB (100 and 50 mg/kg) and estragole (60 and 30 mg/kg) significantly reduced paw edema induced by carrageenan and dextran. The smallest doses of EOOB (50 mg/kg) and estragole (30 mg/kg) showed efficacy in the reduction of paw edema induced by histamine and arachidonic acid, vascular permeability inhibition and leukocyte emigration in the peritoneal fluid. Theses doses were capable of reducing the chronic inflammatory process. The results observed between the EOOB and estragole demonstrate efficacy in anti-inflammatory activity, however, the essential oil is more efficacious in the acute and chronic anti-inflammatory action. This study confirms the therapeutic potential of this plant and reinforces the validity of its use in popular medicine.
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Kristanc L, Kreft S. European medicinal and edible plants associated with subacute and chronic toxicity part II: Plants with hepato-, neuro-, nephro- and immunotoxic effects. Food Chem Toxicol 2016; 92:38-49. [DOI: 10.1016/j.fct.2016.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/15/2016] [Accepted: 03/18/2016] [Indexed: 02/07/2023]
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37
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Developing a QSAR model for hepatotoxicity screening of the active compounds in traditional Chinese medicines. Food Chem Toxicol 2015; 78:71-7. [DOI: 10.1016/j.fct.2015.01.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 01/14/2015] [Accepted: 01/16/2015] [Indexed: 01/10/2023]
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38
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Li L, Bonneton F, Chen XY, Laudet V. Botanical compounds and their regulation of nuclear receptor action: the case of traditional Chinese medicine. Mol Cell Endocrinol 2015; 401:221-37. [PMID: 25449417 DOI: 10.1016/j.mce.2014.10.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 10/23/2014] [Accepted: 10/31/2014] [Indexed: 02/06/2023]
Abstract
Nuclear receptors (NRs) are major pharmacological targets that allow an access to the mechanisms controlling gene regulation. As such, some NRs were identified as biological targets of active compounds contained in herbal remedies found in traditional medicines. We aim here to review this expanding literature by focusing on the informative articles regarding the mechanisms of action of traditional Chinese medicines (TCMs). We exemplified well-characterized TCM action mediated by NR such as steroid receptors (ER, GR, AR), metabolic receptors (PPAR, LXR, FXR, PXR, CAR) and RXR. We also provided, when possible, examples from other traditional medicines. From these, we draw a parallel between TCMs and phytoestrogens or endocrine disrupting chemicals also acting via NR. We define common principle of action and highlight the potential and limits of those compounds. TCMs, by finely tuning physiological reactions in positive and negative manners, could act, in a subtle but efficient way, on NR sensors and their transcriptional network.
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Affiliation(s)
- Ling Li
- Institut de Génomique Fonctionnelle de Lyon; Université de Lyon; Université Lyon 1; CNRS UMR 5242; Ecole Normale Supérieure de Lyon, France.; School of Ecological and Environmental Science, East China Normal University, Shanghai, China
| | - François Bonneton
- Institut de Génomique Fonctionnelle de Lyon; Université de Lyon; Université Lyon 1; CNRS UMR 5242; Ecole Normale Supérieure de Lyon, France
| | - Xiao Yong Chen
- School of Ecological and Environmental Science, East China Normal University, Shanghai, China
| | - Vincent Laudet
- Institut de Génomique Fonctionnelle de Lyon; Université de Lyon; Université Lyon 1; CNRS UMR 5242; Ecole Normale Supérieure de Lyon, France..
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Gupta PK, Barone G, Gurley BJ, Fifer EK, Hendrickson HP. Hydrastine pharmacokinetics and metabolism after a single oral dose of goldenseal (Hydrastis canadensis) to humans. Drug Metab Dispos 2015; 43:534-52. [PMID: 25609220 DOI: 10.1124/dmd.114.059410] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The disposition and metabolism of hydrastine was investigated in 11 healthy subjects following an oral dose of 2.7 g of goldenseal supplement containing 78 mg of hydrastine. Serial blood samples were collected for 48 hours, and urine was collected for 24 hours. Hydrastine serum and urine concentrations were determined by Liquid Chromatography-tandem mass spectrometry (LC-MS/MS). Pharmacokinetic parameters for hydrastine were calculated using noncompartmental methods. The maximal serum concentration (Cmax) was 225 ± 100 ng/ml, Tmax was 1.5 ± 0.3 hours, and area under the curve was 6.4 ± 4.1 ng ⋅ h/ml ⋅ kg. The elimination half-life was 4.8 ± 1.4 hours. Metabolites of hydrastine were identified in serum and urine by using liquid chromatography coupled to high-resolution mass spectrometry. Hydrastine metabolites were identified by various mass spectrometric techniques, such as accurate mass measurement, neutral loss scanning, and product ion scanning using Quadrupole-Time of Flight (Q-ToF) and triple quadrupole instruments. The identity of phase II metabolites was further confirmed by hydrolysis of glucuronide and sulfate conjugates using bovine β-glucuronidase and a Helix pomatia sulfatase/glucuronidase enzyme preparation. Hydrastine was found to undergo rapid and extensive phase I and phase II metabolism. Reduction, O-demethylation, N-demethylation, hydroxylation, aromatization, lactone hydrolysis, and dehydrogenation of the alcohol group formed by lactone hydrolysis to the ketone group were observed during phase I biotransformation of hydrastine. Phase II metabolites were primarily glucuronide and sulfate conjugates. Hydrastine undergoes extensive biotransformation, and some metabolites may have pharmacological activity. Further study is needed in this area.
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Affiliation(s)
- Prem K Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy (P.K.G., B.J.G., E.K.F., H.P.H.), and Department of Surgery, College of Medicine (G.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Gary Barone
- Department of Pharmaceutical Sciences, College of Pharmacy (P.K.G., B.J.G., E.K.F., H.P.H.), and Department of Surgery, College of Medicine (G.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Bill J Gurley
- Department of Pharmaceutical Sciences, College of Pharmacy (P.K.G., B.J.G., E.K.F., H.P.H.), and Department of Surgery, College of Medicine (G.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - E Kim Fifer
- Department of Pharmaceutical Sciences, College of Pharmacy (P.K.G., B.J.G., E.K.F., H.P.H.), and Department of Surgery, College of Medicine (G.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Howard P Hendrickson
- Department of Pharmaceutical Sciences, College of Pharmacy (P.K.G., B.J.G., E.K.F., H.P.H.), and Department of Surgery, College of Medicine (G.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
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Nencini C, Galluzzi P, Pippi F, Menchiari A, Micheli L. Hepatotoxicity of Teucrium chamaedrys L. decoction: role of difference in the harvesting area and preparation method. Indian J Pharmacol 2014; 46:181-4. [PMID: 24741190 PMCID: PMC3987187 DOI: 10.4103/0253-7613.129313] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 06/10/2013] [Accepted: 01/23/2014] [Indexed: 11/06/2022] Open
Abstract
Aim: Two recurrent cases of severe acute liver injury attributed to the use of a wild germander decoction, prepared with some variation in traditional method has been reported. The aim of the present study was to correlate the hepatotoxic effect observed in patients who consumed germander decoction with teucrin A levels. Antioxidant properties were analyzed to assess any possible differences between the decoction used traditionally by the family (without negative consequences) and the decoction taken by the patients. Materials and Methods: Different types of germander decoctions were prepared in the laboratory by simulating the same conditions for preparing the decoction by the patients and their family members. The levels of teucrin A, the polyphenols and the antioxidant power were determined. One-way analysis of variance was used to test for differences between the groups. Results and Conclusions: The extract consumed by the patients had higher concentration of teucrin A, lower antioxidant activity and lower content of polyphenols compared with the traditional decoction, revealing an inverse relationship between teucrin A content and antioxidant capacity. These case reports emphasize that more information is needed on the safety and quality of these natural products.
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Affiliation(s)
- Cristina Nencini
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Paola Galluzzi
- Department of Internal Medicine and Medical Specialties, Division of Infectious Diseases and Hepatology, "S. Maria alle Scotte" Hospital, Siena, Italy
| | - Francesco Pippi
- Department of Internal Medicine and Medical Specialties, Division of Infectious Diseases and Hepatology, "S. Maria alle Scotte" Hospital, Siena, Italy
| | | | - Lucia Micheli
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
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Lewinska A, Chochrek P, Smolag K, Rawska E, Wnuk M. Oxidant-based anticancer activity of a novel synthetic analogue of capsaicin, capsaicin epoxide. Redox Rep 2014; 20:116-25. [PMID: 25382686 DOI: 10.1179/1351000214y.0000000113] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Plant-derived natural substances, such as capsaicin, with potent antiproliferative activity against cancer cells in vitro are considered to be promising nutraceuticals in anticancer therapy. Nevertheless, the limited systemic bioavailability of phytochemicals may raise questions regarding the physiological relevance of their phytochemical effects in vivo. Thus, the search for novel phytochemical-based substances with more efficient anticancer action is needed. METHODS In the present study, a capsaicin analogue, namely, capsaicin epoxide, was synthesized, and its cytotoxic potential against cancer cells was evaluated and compared to that of capsaicin through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and multi-caspase assays. The abilities of capsaicin and capsaicin epoxide to induce oxidative stress were estimated using redox-sensitive fluorogenic probes: 2',7'-dichlorodihydrofluorescein diacetate (H2DCF-DA) and dihydroethidium. RESULTS The structure and purity of the synthesized product were confirmed by nuclear magnetic resonance spectroscopy, electrospray ionization mass spectrometry, and gas chromatography. Normal human dermal fibroblasts were not susceptible to treatment with the agent, whereas a cancer cell type-specific response was observed. Human breast carcinoma cells were found to be the most sensitive to capsaicin epoxide treatment compared with capsaicin treatment, and the action of capsaicin epoxide was oxidant based. DISCUSSION Our data indicate that the antiproliferative activity of capsaicin epoxide is potentiated in vitro, when used at much lower concentrations compared with capsaicin at similar concentrations. Thus, the findings of this study may have implications for phytochemical-based anticancer drug development.
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Yang X, Chen B, Liu T, Chen X. Reversal of myofibroblast differentiation: a review. Eur J Pharmacol 2014; 734:83-90. [PMID: 24742377 DOI: 10.1016/j.ejphar.2014.04.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 04/02/2014] [Accepted: 04/03/2014] [Indexed: 12/16/2022]
Abstract
It has long been considered that fibrosis and fibroblast-to-myofibroblast differentiation are irreversible processes. However, recent data obtained indicates that tissue fibrosis and fibroblast-to-myofibroblast differentiation can indeed be reversed, which offers the possibility of a new therapeutic approach for fibrotic disorders. Here, we discuss the origin of the myofibroblasts and different aspects of their differentiation, especially the key mediators and TGFβ-induced signaling pathways. We also report here a few factors involved in myofiroblast dedifferentiation and several compounds which can reverse the established dedifferentiated myofibroblast, as examples that provide the reader a glimpse of the current trends of approach for discovering useful anti-fibrotic drugs.
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Affiliation(s)
- XiaoHong Yang
- Department of Pharmacology, College of Pharmacy, Third Military Medical University, Gaotanyan Street 30, Shapingba District, Chongqing 400038, China
| | - Bo Chen
- Department of Pharmacology, College of Pharmacy, Third Military Medical University, Gaotanyan Street 30, Shapingba District, Chongqing 400038, China
| | - Tao Liu
- Department of Pharmacology, College of Pharmacy, Third Military Medical University, Gaotanyan Street 30, Shapingba District, Chongqing 400038, China
| | - XiaoHong Chen
- Department of Pharmacology, College of Pharmacy, Third Military Medical University, Gaotanyan Street 30, Shapingba District, Chongqing 400038, China.
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Abstract
The formation of quinone methides (QMs) from either direct 2-electron oxidation of 2- or 4-alkylphenols, isomerization of o-quinones, or elimination of a good leaving group could explain the cytotoxic/cytoprotective effects of several drugs, natural products, as well as endogenous compounds. For example, the antiretroviral drug nevirapine and the antidiabetic agent troglitazone both induce idiosyncratic hepatotoxicity through mechanisms involving quinone methide formation. The anesthetic phencyclidine induces psychological side effects potentially through quinone methide mediated covalent modification of crucial macromolecules in the brain. Selective estrogen receptor modulators (SERMs) such as tamoxifen, toremifene, and raloxifene are metabolized to quinone methides which could potentially contribute to endometrial carcinogenic properties and/or induce detoxification enzymes and enhance the chemopreventive effects of these SERMs. Endogenous estrogens and/or estrogens present in estrogen replacement formulations are also metabolized to catechols and further oxidized to o-quinones which can isomerize to quinone methides. Both estrogen quinoids could cause DNA damage which could enhance hormone dependent cancer risk. Natural products such as the food and flavor agent eugenol can be directly oxidized to a quinone methide which may explain the toxic effects of this natural compound. Oral toxicities associated with chewing areca quid could be the result of exposure to hydroxychavicol through initial oxidation to an o-quinone which isomerizes to a p-quinone methide. Similar o-quinone to p-quinone methide isomerization reactions have been reported for the ubiquitous flavonoid quercetin which needs to be taken into consideration when evaluating risk-benefit assessments of these natural products. The resulting reaction of these quinone methides with proteins, DNA, and/or resulting modulation of gene expression may explain the toxic and/or beneficial effects of the parent compounds.
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Affiliation(s)
- Judy L. Bolton
- Department of Medicinal Chemistry and Pharmacognosy (M/C 781) College of Pharmacy University of Illinois at Chicago 833 S. Wood Street Chicago, Illinois 60612-7231
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Zhai XJ, Shi F, Chen F, Lu YN. Capsaicin pretreatment increased the bioavailability of cyclosporin in rats: involvement of P-glycoprotein and CYP 3A inhibition. Food Chem Toxicol 2013; 62:323-8. [PMID: 24013073 DOI: 10.1016/j.fct.2013.08.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 08/05/2013] [Accepted: 08/25/2013] [Indexed: 01/10/2023]
Abstract
Capsaicin (CAP), the main ingredient responsible for the hot pungent taste of chilli peppers. This study investigated the effect of CAP on the pharmacokinetics of Cyclosporin A (CyA) in rats and the mechanism of this food-drug interaction. The results indicated that after 7 days of low or middle dose of CAP (0.3 or 1.0 mg/kg), the blood concentration of CyA was not significantly changed compared with that of vehicle-treated rats, whereas the blood concentration of CyA in high dose group (3.0 mg/kg) was significantly increased. The total clearance (CL/F) of CyA was decreased, and the bioavailability was significantly increased to about 1.44-fold of that in vehicle-treated rats after 7 days of high dose CAP treatment. At this time, the P-gp and CYP3A1/2 in the liver and intestine were decreased at both the mRNA and protein levels. These results demonstrated that chronic ingestion of high doses of CAP will increase the bioavailability of CyA to a significant extent in rats and the food-drug interaction between CAP and CyA appears to be due to modulation of P-gp and CYP3A gene expression by CAP, with differential dose-dependence.
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Affiliation(s)
- Xue-jia Zhai
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
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Underestimating the toxicological challenges associated with the use of herbal medicinal products in developing countries. BIOMED RESEARCH INTERNATIONAL 2013; 2013:804086. [PMID: 24163821 PMCID: PMC3791562 DOI: 10.1155/2013/804086] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 08/20/2013] [Indexed: 01/11/2023]
Abstract
Various reports suggest a high contemporaneous prevalence of herb-drug use in both developed and developing countries. The World Health Organisation indicates that 80% of the Asian and African populations rely on traditional medicine as the primary method for their health care needs. Since time immemorial and despite the beneficial and traditional roles of herbs in different communities, the toxicity and herb-drug interactions that emanate from this practice have led to severe adverse effects and fatalities. As a result of the perception that herbal medicinal products have low risk, consumers usually disregard any association between their use and any adverse reactions hence leading to underreporting of adverse reactions. This is particularly common in developing countries and has led to a paucity of scientific data regarding the toxicity and interactions of locally used traditional herbal medicine. Other factors like general lack of compositional and toxicological information of herbs and poor quality of adverse reaction case reports present hurdles which are highly underestimated by the population in the developing world. This review paper addresses these toxicological challenges and calls for natural health product regulations as well as for protocols and guidance documents on safety and toxicity testing of herbal medicinal products.
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Food–drug interactions: Effect of capsaicin on the pharmacokinetics of simvastatin and its active metabolite in rats. Food Chem Toxicol 2013; 53:168-73. [DOI: 10.1016/j.fct.2012.11.045] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 10/23/2012] [Accepted: 11/27/2012] [Indexed: 11/21/2022]
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Zhou J, Ouedraogo M, Qu F, Duez P. Potential Genotoxicity of Traditional Chinese Medicinal Plants and Phytochemicals: An Overview. Phytother Res 2013; 27:1745-55. [DOI: 10.1002/ptr.4942] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 01/02/2013] [Accepted: 01/09/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Jue Zhou
- College of Food Science and Biotechnology; Zhejiang Gongshang University; Hangzhou 310012 Zhejiang China
| | - Moustapha Ouedraogo
- Laboratory of Pharmacology and Toxicology, Health Sciences Faculty; University of Ouagadougou; 03 BP 7021 Ouagadougou 03 Burkina Faso
- Laboratory of Pharmacognosy, Bromatology and Human Nutrition; Université Libre de Bruxelles (ULB); CP 205-9 B-1050 Brussels Belgium
| | - Fan Qu
- Women's Hospital, School of Medicine; Zhejiang University; Hangzhou 310006 Zhejiang China
| | - Pierre Duez
- Laboratory of Pharmacognosy, Bromatology and Human Nutrition; Université Libre de Bruxelles (ULB); CP 205-9 B-1050 Brussels Belgium
- Department of Therapeutical Chemistry and Pharmacognosy; Université de Mons (UMONS); Bât. Mendeleiev, Av. Maistriau 7000 Mons Belgium
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48
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Updates on chemical and biological research on botanical ingredients in dietary supplements. Anal Bioanal Chem 2013; 405:4373-84. [DOI: 10.1007/s00216-012-6691-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 12/18/2012] [Accepted: 12/21/2012] [Indexed: 12/15/2022]
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49
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Tan Y, Li J, Liu X, Ko J, He X, Lu C, Liu Z, Zhao H, Xiao C, Niu X, Zha Q, Yu Z, Zhang W, Lu A. Deciphering the differential toxic responses of Radix aconiti lateralis praeparata in healthy and hydrocortisone-pretreated rats based on serum metabolic profiles. J Proteome Res 2012. [PMID: 23205644 DOI: 10.1021/pr300965d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Radix aconiti lateralis praeparata (Baifupian) has received great attention because of its excellent therapeutic effects as well as the associated adverse drug reactions. According to the traditional Chinese medicine (TCM) principle, Baifupian should only be used in patients with TCM "kidney-yang" deficiency pattern, a clinical state that can be mimicked by hydrocortisone induction in rats. This study aimed to decipher the differential toxic responses of Baifupian in healthy and hydrocortisone-pretreated rats based on serum metabolic profiles. Drug-treated rats received Baifupian intragastrically at the dose of 1.28 g/kg/day for 15 days. Serum metabolic profiles were obtained by using the LC-Q-TOF-MS technique. Our results show that Baifupian could induce severe toxicity in the heart, liver, and kidneys of healthy rats. These drug-induced toxic reactions were largely alleviated in hydrocortisone-pretreated animals. Changes of metabolic profiles in drug-treated healthy and hydrocortisone-pretreated rats were demonstrated, involving oxidative phosphorylation, amino acid and lipid metabolism as characterized by altered phosphate, betaine, and phosphatidyl choline. These metabolic alterations could be responsible at least in part for the differential toxic responses of Baifupian under various health conditions. This study provides a new paradigm for better understanding of the risks and limitations when using potentially toxic herbs in clinical applications.
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Affiliation(s)
- Yong Tan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Science, Beijing 100700, China
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Bitencourt S, de Mesquita FC, Caberlon E, da Silva GV, Basso BS, Ferreira GA, de Oliveira JR. Capsaicin induces de-differentiation of activated hepatic stellate cell. Biochem Cell Biol 2012; 90:683-90. [DOI: 10.1139/o2012-026] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hepatic stellate cells (HSC) play a key role in liver fibrogenesis. Activation of PPARγ and inhibition of fibrogenic molecules are potential strategies to block HSC activation and differentiation. A number of natural products have been suggested to have antifibrotic effects for the de-activation and de-differentiation of HSCs. The purpose of this study was to investigate the in vitro effects of capsaicin on HSC de-activation and de-differentiation. The results demonstrated that capsaicin induced quiescent phenotype in GRX via PPARγ activation. Significant decrease in COX-2 and type I collagen mRNA expression was observed in the first 24 h of treatment. These events preceded the reduction of TGF-β1 and total collagen secretion. Thus, capsaicin promoted down-regulation of HSC activation by its antifibrotic and anti-inflammatory actions. These findings demonstrate that capsaicin may have potential as a novel therapeutic agent for the treatment of liver fibrosis.
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Affiliation(s)
- Shanna Bitencourt
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda C. de Mesquita
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo Caberlon
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gabriela V. da Silva
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Bruno S. Basso
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gabriela A. Ferreira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jarbas R. de Oliveira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Avenida Ipiranga 6681, prédio 12, bloco C, sala 221, CEP 90619-900, Porto Alegre, Rio Grande do Sul, Brazil
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