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Wu PQ, Liu ZD, Ren YH, Zhou JS, Liu QF, Wu Y, Zhang JL, Zhou B, Yue JM. Monoterpenoid indole alkaloids from Alstonia scholaris and their Toxoplasma gondii inhibitory activity. PHYTOCHEMISTRY 2024; 220:113993. [PMID: 38266954 DOI: 10.1016/j.phytochem.2024.113993] [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: 10/13/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
Nine previously unreported various types of monoterpenoid indole alkaloids, together with seven known analogues were isolated from the stem barks of Alstonia scholaris through a silica gel free methodology. The structures of 1-9 were elucidated by spectroscopic data analysis, electronic circular dichroism calculations, and single-crystal X-ray diffraction. Compound 1 is a modified echitamine-type alkaloid with a novel 6/5/5/7/6/6 hetero hexacyclic bridged ring system, and 8 and 9 exist as a zwitterion and trifluoroacetate salt, respectively. The anti-Toxoplasma activity of all isolates on infected Vero cells were evaluated, which revealed that compound 14 at 0.24 μM displayed potent activity. This study expanded the structural diversity of alkaloids of A. scholaris, and presented their potential application in anti-Toxoplasma drug development.
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Affiliation(s)
- Pei-Qian Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Zhen-Di Liu
- Health Science Center, Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang, 315211, People's Republic of China
| | - Yu-Hao Ren
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Jun-Su Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Qun-Fang Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Yan Wu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Ji-Li Zhang
- Health Science Center, Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang, 315211, People's Republic of China
| | - Bin Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China.
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, 264117, People's Republic of China.
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Guo R, Shang JH, Ye RH, Zhao YL, Luo XD. Pharmacological investigation of indole alkaloids from Alstonia scholaris against chronic glomerulonephritis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 118:154958. [PMID: 37453192 DOI: 10.1016/j.phymed.2023.154958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/05/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND As one of the most commonly used folk medicines in "Dai" ethno-medicine system, Alstonia scholaris (l.) R. Br. has also been used for treat "water related diseases", such as chronic kidney disease. However, few study was reported for it on the intervention of chronic glomerulonephritis (CGN). PURPOSE To investigate the effect and potential mechanism of indole alkaloids from A. scholaris leaves in ICR mice with adriamycin nephropathy, as well as providing experimental evidence for the further application. METHODS ICR Mice were selected for injections of adriamycin (ADR) to induce the CGN model and administered total alkaloids (TA) and four main alkaloids continuously for 42 and 28 days, respectively. The pharmacological effects were indicated by serum, urine, and renal pathological observations. The targets and pathways of indole alkaloids on CGN intervention were predicted using the network pharmacology approach, and the immortalized mice glomerular podocyte (MPC5) cells model stimulated by ADR was subsequently selected to further verify this by western blotting and RT-qPCR methods. RESULTS TA and four major compounds dramatically reduced the levels of urinary protein, serum urea nitrogen (BUN), and creatinine (CRE) in ADR - induced CGN mice, while increasing serum albumin (ALB) and total protein (TP) levels as well as ameliorating kidney damage. Moreover, four alkaloids effected on 33 major target proteins and 153 pathways in the CGN, among which, PI3K-Akt as the main pathway, an important pathway for kidney protection by network pharmacology prediction, and then the four target proteins - HRAS, CDK2, HSP90AA1, and KDR were screened. As a result, Val-and Epi can exert a protective effect on ADR-stimulated MPC5 cells injury at a concentration of 50 μM. Furthermore, the proteins and RNA expression of HRAS, HSP90AA1, and KDR were down-regulated, and CDK2 was up-regulated after the intervention of Val-and Epi, which were supported by Western blotting and RT-qPCR. Additionally, Val-and Epi inhibited ROS production in the MPC5 cells model. CONCLUSION This study is the first to confirm the potential therapeutic effect of alkaloids from A. scholaris on CGN. TA with major bioactive components (vallesamine and 19‑epi-scholaricine) could exert protective effects against the ADR-induced CGN by regulating four key proteins: HRAS, CDK2, HSP90AA1, and KDR of the PI3K-Akt pathway.
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Affiliation(s)
- Rui Guo
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China; Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences Kunming 650201, PR China
| | - Rui-Han Ye
- Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, PR China
| | - Yun-Li Zhao
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China.
| | - Xiao-Dong Luo
- Yunnan Characteristic Plant Extraction Laboratory, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences Kunming 650201, PR China.
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Effect of Biosynthesized Silver Nanoparticles on Bacterial Biofilm Changes in S. aureus and E. coli. NANOMATERIALS 2022; 12:nano12132183. [PMID: 35808019 PMCID: PMC9268453 DOI: 10.3390/nano12132183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/02/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022]
Abstract
One approach for solving the problem of antibiotic resistance and bacterial persistence in biofilms is treatment with metals, including silver in the form of silver nanoparticles (AgNPs). Green synthesis is an environmentally friendly method to synthesize nanoparticles with a broad spectrum of unique properties that depend on the plant extracts used. AgNPs with antibacterial and antibiofilm effects were obtained using green synthesis from plant extracts of Lagerstroemia indica (AgNPs_LI), Alstonia scholaris (AgNPs_AS), and Aglaonema multifolium (AgNPs_AM). Nanoparticles were characterized by transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX) analysis. The ability to quench free radicals and total phenolic content in solution were also evaluated. The antibacterial activity of AgNPs was studied by growth curves as well as using a diffusion test on agar medium plates to determine minimal inhibitory concentrations (MICs). The effect of AgNPs on bacterial biofilms was evaluated by crystal violet (CV) staining. Average minimum inhibitory concentrations of AgNPs_LI, AgNPs_AS, AgNPs_AM were 15 ± 5, 20 + 5, 20 + 5 μg/mL and 20 ± 5, 15 + 5, 15 + 5 μg/mL against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, respectively. The E. coli strain formed biofilms in the presence of AgNPs, a less dense biofilm than the S. aureus strain. The highest inhibitory and destructive effect on biofilms was exhibited by AgNPs prepared using an extract from L. indica.
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Kanchibhotla D, Subramanian S, Ravi Kumar RM, Venkatesh Hari KR, Pathania M. An In-vitro evaluation of a polyherbal formulation, against SARS-Cov-2. J Ayurveda Integr Med 2022; 13:100581. [PMID: 35753154 PMCID: PMC9222090 DOI: 10.1016/j.jaim.2022.100581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/19/2022] [Accepted: 04/16/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In the last two years, COVID-19 pandemic caused by SARS-CoV-2 has created a mass destruction among humanity causing a major health crisis around the world. With the emergence of new strains of the virus, lack of targeted drugs and antimicrobial resistance, there is a dire need to discover specific antiviral with minimum side effects targeted against COVID-19. OBJECTIVE The present study evaluates the antiviral efficacy of a novel Ayurvedic polyherbal formulation, NOQ19, composed of a 13 well known herbs, in a cell-based setting. METHODOLOGY Vero E6 (CL1008), the African green monkey kidney epithelial cell, were infected with SARS-CoV-2 virus (isolate USA-WA1/2020) in a 96 well-plate. NOQ19 test material was diluted at different concentration: 0.05 mg/ml, 0.1 mg/ml, 0.2 mg/ml, 0.3 mg/ml, 0.4 mg/ml, 0.5 mg/ml, 0.6 mg/ml, 0.7 mg/ml, 0.8 mg/ml and 0.9 mg/ml. These different concentrations of NOQ19 were added to infected cells respectively and incubated for 3 days in 5% CO2 incubator. Remdesivir was used as a positive control. The cells were finally fixed with formaldehyde, stained with crystal violet and plaques were visualized. The number of plaques were counted to determine the PFU(plaque forming units)/ml. RESULTS The results of the present study demonstrated an excellent an antiviral efficacy of NOQ19 at 0.9 mg/ml concentration, eliminating 100% virus. The IC50 of the drug was found to be 0.2 mg/ml. CONCLUSION There is limited data around pre-clinical efficacy of polyherbal Ayurvedic drugs. Ayurvedic and herbal formations need to be tested in a preclinical setting to support the human data. The results of the present study demonstrated viral load reduction using NOQ19 in Vero E6 cell lines infected with SARS-CoV-2 virus. These result along with other preclinical and clinical trials could further evaluate the efficacy of NOQ19 as a potential therapeutic option in the fighting the COVID-19 challenge.
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Therapeutic Effect of Renifolin F on Airway Allergy in an Ovalbumin-Induced Asthma Mouse Model In Vivo. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123789. [PMID: 35744915 PMCID: PMC9227769 DOI: 10.3390/molecules27123789] [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: 05/23/2022] [Revised: 06/08/2022] [Accepted: 06/11/2022] [Indexed: 11/23/2022]
Abstract
Renifolin F is a prenylated chalcone isolated from Shuteria involucrata, a traditional minority ethnic medicine used to treat the respiratory diseases and asthma. Based on the effects of the original medicine plant, we established an in vivo mouse model of allergic asthma using ovalbumin (OVA) as an inducer to evaluate the therapeutic effects of Renifolin F. In the research, mice were sensitized and challenged with OVA to establish an allergic asthma model to evaluate the effects of Renifolin F on allergic asthma. The airway hyper-reactivity (AHR) to methacholine, cytokine levels, ILC2s quantity and mircoRNA-155 expression were assessed. We discovered that Renifolin F attenuated AHR and airway inflammation in the OVA-induced asthmatic mouse model by inhibiting the regulation of ILC2s in the lung, thereby, reducing the upstream inflammatory cytokines IL-25, IL-33 and TSLP; the downstream inflammatory cytokines IL-4, IL-5, IL-9 and IL-13 of ILC2s; and the co-stimulatory factors IL-2 and IL-7; as well as the expression of microRNA-155 in the lung. The findings suggest a therapeutic potential of Renifolin F on OVA-induced airway inflammation.
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Jasemi SV, Khazaei H, Momtaz S, Farzaei MH, Echeverría J. Natural products in the treatment of pulmonary emphysema: Therapeutic effects and mechanisms of action. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:153988. [PMID: 35217434 DOI: 10.1016/j.phymed.2022.153988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/19/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a class of lung diseases including chronic bronchitis, asthma, and emphysema. Long-time smoking is considered the main reason for developing emphysema. Emphysema can be defined as damage to the walls of the air sacs (alveoli) of the lung. It has been demonstrated that natural compounds with antioxidant and anti-inflammatory effects can effectively improve or protect the lung against this disease. This paper is dedicated to systematically review the effective natural compounds in the treatment of pulmonary emphysema. PURPOSE This is the first systematic and comprehensive review on the role of plant-derived secondary metabolites in managing and/or treating pulmonary emphysema STUDY DESIGN AND METHODS: A systematic and comprehensive review was done based on Scopus, PubMed, and Cochrane Library databases were searched using the "emphysema", "plant", "herb", and "phytochemical" keywords. Non-English, review, and repetitive articles were excluded from the study. Search results were included in the Prisma diagram. RESULTS From a total of 1285 results, finally, 22 articles were included in the present study. The results show that some herbs such as Scutellaria baicalensis Georgi and Monascus adlay and some phytochemicals such as gallic acid and quercetin and blackboard tree indole alkaloids affect more factors in improving the lung emphysema. Also, some natural compounds such as marijuana smoke and humic acid also play an aggravating role in this disease. It also seems that some of the medicinal plants such as PM014 herbal formula, pomegranate juice and açaí berry sometimes have side effects that are inconsistent with their therapeutic effects. CONCLUSION We concluded that natural compounds can effectively improve pulmonary emphysema due to their antioxidant, anti-inflammatory, and anti-apoptotic properties. However, additional studies are suggested to prove efficacy and side effects.
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Affiliation(s)
- Sayed Vahid Jasemi
- Department of Internal Medicine, Faculty of Medicine, Kermanshah University of Medical Sciences, Iran
| | - Hosna Khazaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Saeideh Momtaz
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran; Department of Toxicology and Pharmacology, School of Pharmacy, and Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Science, Kermanshah, Iran.
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
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Sun SF, Zhong HJ, Zhao YL, Ma XY, Luo JB, Zhu L, Zhang YT, Wang WX, Luo XD, Geng JW. Indole alkaloids of Alstonia scholaris (L.) R. Br. alleviated nonalcoholic fatty liver disease in mice fed with high-fat diet. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:14. [PMID: 35364708 PMCID: PMC8975985 DOI: 10.1007/s13659-022-00335-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/17/2022] [Indexed: 05/06/2023]
Abstract
Alstonia scholaris (L.) R. Br (Apocynaceae) is a well-documented medicinal plant for treating respiratory diseases, liver diseases and diabetes traditionally. The current study aimed to investigate the effects of TA on non-alcoholic fatty liver disease (NAFLD). A NAFLD model was established using mice fed a high-fat diet (HFD) and administered with TA (7.5, 15 and 30 mg/kg) orally for 6 weeks. The biochemical parameters, expressions of lipid metabolism-related genes or proteins were analyzed. Furthermore, histopathological examinations were evaluated with Hematoxylin-Eosin and MASSON staining. TA treatment significantly decreased the bodyweight of HFD mice. The concentrations of low-density lipoprotein (LDL), triglyceride (TG), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were also decreased significantly in TA-treated mice group, accompanied by an increase in high-density lipoprotein (HDL). Furthermore, TA alleviated hepatic steatosis injury and lipid droplet accumulation of liver tissues. The liver mRNA levels involved in hepatic lipid synthesis such as sterol regulatory element-binding protein 1C (SREBP-1C), regulators of liver X receptor α (LXRα), peroxisome proliferator activated receptor (PPAR)γ, acetyl-CoA carboxylase (ACC1) and stearyl coenzyme A dehydrogenase-1 (SCD1), were markedly decreased, while the expressions involved in the regulation of fatty acid oxidation, PPARα, carnitine palmitoyl transterase 1 (CPT1A), and acyl coenzyme A oxidase 1 (ACOX1) were increased in TA-treated mice. TA might attenuate NAFLD by regulating hepatic lipogenesis and fatty acid oxidation.
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Affiliation(s)
- Shui-Fen Sun
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
- School of Medicine, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Hui-Jie Zhong
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
- School of Medicine, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Xiu-Ying Ma
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Jin-Bo Luo
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Ling Zhu
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Yu-Ting Zhang
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Wen-Xue Wang
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China.
- School of Medicine, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
| | - Jia-Wei Geng
- Department of Infectious Disease and Hepatic Disease, First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China.
- School of Medicine, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
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Li R, Zhao YL, Qin F, Zhao Y, Xiao XR, Cao WY, Fan MR, Wang SG, Wu Y, Wang B, Fan CZ, Guo ZN, Yang QN, Zhang WT, Li XG, Li F, Luo XD, Gao R. The clinical population pharmacokinetics, metabolomics and therapeutic analysis of alkaloids from Alstonia scholaris leaves in acute bronchitis patients. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 98:153979. [PMID: 35176533 DOI: 10.1016/j.phymed.2022.153979] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 01/18/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Capsule of alkaloids from leaf of Alstonia scholaris (CALAS) is a new investigational botanical drug (No. 2011L01436) for respiratory disease. Clinical population pharmacokinetics (PK), metabolomics and therapeutic data are essential to guide dosing in patients. Previous research has demonstrated the potential therapeutic effect of CALAS on acute bronchitis. Further clinical trial data are needed to verify its clinical efficacy, pharmacokinetics behavior, and influence of dosage and other factors. PURPOSE To verify the clinical efficacy and explore the potential biomarkers related to CALAS treatment for acute bronchitis. MATERIALS AND METHODS Oral CALAS was assessed in a randomized, double-blind, placebo-controlled trial. Fifty-five eligible patients were randomly assigned to four cohorts to receive 20, 40 or 80 mg, of CALAS three times daily for seven days, or placebo. Each CALAS cohort included 15 subjects, and the placebo group included 10 subjects. A population PK model of CALAS was developed using plasma with four major alkaloid components. Metabolomics analysis was performed to identify biomarkers correlated with the therapeutic effect of CALAS, and efficacy and safety were assessed based on clinical symptoms and adverse events. RESULTS The symptoms of acute bronchitis were alleviated by CALAS treatment without serious adverse events or clinically significant changes in vital signs, electrocardiography or upper abdominal Doppler ultrasonography. Moreover, one compartment model with first-order absorption showed that an increase in aspartate transaminase will reduce the clearance (CL) of scholaricine, and picrinine CL was inversely proportional to body mass index, while 19-epischolaricine and vallesamine CL increased with aging. The serum samples from acute bronchitis patients at different time points were analyzed using UPLC-QTOF in combination with the orthogonal projection to latent structures-discriminant analysis, which indicated higher levels of lysophosphatidylcholines, lysophosphatidylethanolamines and amino acids with CALAS treatment than with placebo. CONCLUSION This is the first study to evaluate the clinical efficacy and explored the potential biomarkers related to CALAS therapeutic mechanism of acute bronchitis by means of clinical trial combined the metabolomics study. This exploratory study provides a basis for further research on clinical efficacy and optimal dosing regimens based on pharmacokinetics behavior. Additional acute bronchitis patients and CALAS PK samples collected in future studies may be used to improve model performance and maximize its clinical value.
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Affiliation(s)
- Rui Li
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China; NMPA Key Laboratory for Clinical Research and Evaluation of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China
| | - Feng Qin
- Department of Analytical Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Yang Zhao
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Xue-Rong Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Wei-Yi Cao
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Mao-Rong Fan
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Shu-Ge Wang
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Yi Wu
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Bing Wang
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Chang-Zheng Fan
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Zhong-Ning Guo
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Qiao-Ning Yang
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Wan-Tong Zhang
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China
| | - Xin-Gang Li
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 100050, PR China.
| | - Fei Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; Laboratory of Metabolomics and Drug-induced Liver Injury, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, PR China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China.
| | - Rui Gao
- Institute of Clinical Pharmacology of Xiyuan Hospital, National Clinical Research Center for Chinese Medicine Cardiology, China Academy of Chinese Medical Sciences, No. 1, R. Xiyuangcaochang, Haidian District, Beijing 100091, China.
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Joshi MB, Kamath A, Nair AS, Yedehali Thimmappa P, Sriranjini SJ, Gangadharan GG, Satyamoorthy K. Modulation of neutrophil (dys)function by Ayurvedic herbs and its potential influence on SARS-CoV-2 infection. J Ayurveda Integr Med 2022; 13:100424. [PMID: 33746457 PMCID: PMC7962552 DOI: 10.1016/j.jaim.2021.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/08/2020] [Accepted: 03/09/2021] [Indexed: 12/15/2022] Open
Abstract
For centuries, traditional medicines of Ayurveda have been in use to manage infectious and non-infectious diseases. The key embodiment of traditional medicines is the holistic system of approach in the management of human diseases. SARS-CoV-2 (COVID-19) infection is an ongoing pandemic, which has emerged as the major health threat worldwide and is causing significant stress, morbidity and mortality. Studies from the individuals with SARS-CoV-2 infection have shown significant immune dysregulation and cytokine overproduction. Neutrophilia and neutrophil to lymphocyte ratio has been correlated to poor outcome due to the disease. Neutrophils, component of innate immune system, upon stimulation expel DNA along with histones and granular proteins to form extracellular traps (NETs). Although, these DNA lattices possess beneficial activity in trapping and eliminating pathogens, NETs may also cause adverse effects by inducing immunothrombosis and tissue damage in diseases including Type 2 Diabetes and atherosclerosis. Tissues of SARS-CoV-2 infected subjects showed microthrombi with neutrophil-platelet infiltration and serum showed elevated NETs components, suggesting large involvement and uncontrolled activation of neutrophils leading to pathogenesis and associated organ damage. Hence, traditional Ayurvedic herbs exhibiting anti-inflammatory and antioxidant properties may act in a manner that might prove beneficial in targeting over-functioning of neutrophils and there by promoting normal immune homeostasis. In the present manuscript, we have reviewed and discussed pathological importance of NETs formation in SARS-CoV-2 infections and discuss how various Ayurvedic herbs can be explored to modulate neutrophil function and inhibit NETs formation in the context of a) anti-microbial activity to enhance neutrophil function, b) immunomodulatory effects to maintain neutrophil mediated immune homeostasis and c) to inhibit NETs mediated thrombosis.
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Affiliation(s)
- Manjunath B Joshi
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Archana Kamath
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Aswathy S Nair
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | | | - Sitaram J Sriranjini
- Ramaiah Indic Speciality Ayurveda-Restoration Hospital, MSR Nagar, Mathikere, Bengaluru, 560 054, India
| | - G G Gangadharan
- Ramaiah Indic Speciality Ayurveda-Restoration Hospital, MSR Nagar, Mathikere, Bengaluru, 560 054, India
| | - Kapaettu Satyamoorthy
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.
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10
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Gou ZP, Zhao YL, Zou LL, Wang Y, Shu SQ, Zhu XH, Zheng L, Shen Q, Luo Z, Miao J, Wang YS, Luo XD, Feng P. The safety and tolerability of alkaloids from Alstonia scholaris leaves in healthy Chinese volunteers: a single-centre, randomized, double-blind, placebo-controlled phase I clinical trial. PHARMACEUTICAL BIOLOGY 2021; 59:484-493. [PMID: 33899689 PMCID: PMC8086589 DOI: 10.1080/13880209.2021.1893349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/12/2021] [Accepted: 02/16/2021] [Indexed: 02/06/2023]
Abstract
CONTEXT Capsule of alkaloids from the leaf of Alstonia scholaris (L.) R.Br. (Apocynaceae) (CALAS) is a new investigational botanical drug (No. 2011L01436) for bronchitis, post-infectious cough and asthma. OBJECTIVE To observe the clinical safety and tolerability of CALAS. MATERIALS AND METHODS Subjects were assigned to eight cohorts, and each received randomly CALAS or placebo in one of single ascending dose (SAD) of 8, 40, 120, 240, 360, 480, or in one of multiple ascending dose (MAD) of 40 or 120 mg, three times daily for 7 days. Each cohort contained two placebo subjects. RESULTS Sixty-two enrolled volunteers completed the study and no serious adverse events and clinically significant changes in vital signs, electrocardiography, and upper abdominal Doppler ultrasonography were observed. The ratios of treatment-emergent adverse events (TEAEs) were reported in 11/46 (23.91%) of CALAS groups and 3/16 (18.75%) of the placebo group (p > 0.05), respectively, based on the results of SAD and MAD. All TEAEs were mild, transient, and disappeared without any intervention. The TEAEs possibly related to CALAS treatment were as followings: hiccups (4/46: 8%), dry mouth and nausea (3/46: 6%), increased sleep (2/46: 4%), abdominal distension (1/46: 2%), bilirubin elevated (1/46: 2%). DISCUSSION AND CONCLUSIONS CALAS is safe and well-tolerated with no unexpected or clinically relevant safety concerns up to a single dose of 360 mg and three times daily for 7 days up to 120 mg in healthy Chinese volunteers, supporting further Phase II studies.
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Affiliation(s)
- Zhong-Ping Gou
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People’s Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, People's Republic of China
| | - Lin-Ling Zou
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Ying Wang
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Shi-Qing Shu
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Xiao-Hong Zhu
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Li Zheng
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Qi Shen
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Zhu Luo
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Jia Miao
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yong-Sheng Wang
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People’s Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, People's Republic of China
| | - Ping Feng
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
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11
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Allam VSRR, Chellappan DK, Jha NK, Shastri MD, Gupta G, Shukla SD, Singh SK, Sunkara K, Chitranshi N, Gupta V, Wich PR, MacLoughlin R, Oliver BGG, Wernersson S, Pejler G, Dua K. Treatment of chronic airway diseases using nutraceuticals: Mechanistic insight. Crit Rev Food Sci Nutr 2021; 62:7576-7590. [PMID: 33977840 DOI: 10.1080/10408398.2021.1915744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Respiratory diseases, both acute and chronic, are reported to be the leading cause of morbidity and mortality, affecting millions of people globally, leading to high socio-economic burden for the society in the recent decades. Chronic inflammation and decline in lung function are the common symptoms of respiratory diseases. The current treatment strategies revolve around using appropriate anti-inflammatory agents and bronchodilators. A range of anti-inflammatory agents and bronchodilators are currently available in the market; however, the usage of such medications is limited due to the potential for various adverse effects. To cope with this issue, researchers have been exploring various novel, alternative therapeutic strategies that are safe and effective to treat respiratory diseases. Several studies have been reported on the possible links between food and food-derived products in combating various chronic inflammatory diseases. Nutraceuticals are examples of such food-derived products which are gaining much interest in terms of its usage for the well-being and better human health. As a consequence, intensive research is currently aimed at identifying novel nutraceuticals, and there is an emerging notion that nutraceuticals can have a positive impact in various respiratory diseases. In this review, we discuss the efficacy of nutraceuticals in altering the various cellular and molecular mechanisms involved in mitigating the symptoms of respiratory diseases.
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Affiliation(s)
- Venkata Sita Rama Raju Allam
- Department of Medical Biochemistry and Microbiology, Biomedical Centre (BMC), Uppsala University, Uppsala, Sweden
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Kuala Lumpur, Malaysia
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, India
| | - Madhur D Shastri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, Australia
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Jaipur, India
| | - Shakti D Shukla
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI), University of Newcastle, New Lambton Heights, Newcastle, New South Wales, Australia
| | - Sachin K Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Krishna Sunkara
- Emergency Clinical Management, Intensive Care Unit, John Hunter Hospital, Newcastle, New South Wales, Australia
| | - Nitin Chitranshi
- Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Vivek Gupta
- Faculty of Medicine, Health and Human Sciences, Macquarie University, North Ryde, New South Wales, Australia
| | - Peter R Wich
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales, Australia.,Centre for Nanomedicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Ronan MacLoughlin
- Aerogen, IDA Business Park, Dangan, Galway, Ireland.,School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.,School of Pharmacy and Pharmaceutical Sciences, Trinity College, Dublin, Ireland
| | - Brian Gregory George Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia.,Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia
| | - Sara Wernersson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Biomedical Centre (BMC), Uppsala University, Uppsala, Sweden.,Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, Australia
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12
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Yuan HL, Zhao YL, Qin XJ, Liu YP, Yang XW, Luo XD. Diverse isoquinolines with anti-inflammatory and analgesic bioactivities from Hypecoum erectum. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113811. [PMID: 33444717 DOI: 10.1016/j.jep.2021.113811] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/31/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hypecoum erectum has been used extensively in folk medicine to treat inflammation, fever, and pain. However, few investigations have been carried out on the biological activities related to its traditional use. The chemical constituents of this plant along with their anti-inflammatory and analgesic effects have yet to be revealed. AIM OF THE STUDY This study aimed to support the traditional use of H. erectum by first assessing its anti-inflammatory and analgesic effects and then investigating its chemical constituents to identify any anti-inflammatory and/or analgesic compounds. MATERIAL AND METHODS The in vivo anti-inflammatory and analgesic activities of the MeOH extract (ME), total alkaloid (AL), and non-alkaloid (Non-AL) fractions of H. erectum at doses of 200, 100, and 50 mg/kg and four major constituents (20, 21, 22, and 27) at doses of 100 and 50 mg/kg delivered via intragastrical administration were evaluated using carrageenan-induced paw edema and acetic acid-stimulated writhing animal models. A phytochemical study of the bioactive (AL) fraction was conducted using various chromatographic techniques, and the structures of the obtained isoquinolines were identified by multiple spectroscopic analyses and quantum chemical computations. Moreover, the anti-inflammatory activities of all the isolates were assessed in vitro based on the suppression of lipopolysaccharide-activated inflammatory mediators (COX-2, IL-1β, and TNF-α) in RAW 264.7 macrophage cells. RESULTS At the dose of 200 mg/kg, the three fractions (ME, AL, and Non-AL) of H. erectum ameliorated the paw edema by carrageenan-stimulated and reduced the number of writhing by acetic acid-induced in mice compared to the model group, with the AL fraction showing the most potent effects. Subsequent phytochemical investigation of the AL fraction led to the isolation of six new isoquinoline alkaloids (1-6) as well as 23 known analogues (7-29). However, compared to common isoquinolines, compounds 1-4 possess an additional nitrogen atom, while compound 5 has two additional nitrogen atoms. These additional atoms enrich the diversity of natural isoquinoline alkaloids. Further pharmacological evaluation in vivo revealed that the four major constituents (20, 21, 22, and 27) significantly relieved paw edema at 100 mg/kg, while protopine (20) and oxyhydrastinin (27) remarkably decreased the number of writhing at 100 mg/kg. In addition, most of the isolates displayed anti-inflammatory effects, as indicated by the inhibition of inflammatory mediators (COX-2, IL-1β, and/or TNF-α) in vitro at a treatment concentration of 5 μg/mL. trans-benzindenoazepines (13), protopine (20), and 1,3,6,6-tetramethyl-5,6,7,8-tetrahyboisoquiolin-8-one (25) showed comparable anti-inflammatory activity to dexamethasone by inhibiting the secretion of IL-1β. CONCLUSIONS This investigation validated the traditional use of H. erectum by assessing its anti-inflammatory and analgesic effects. Phytochemical investigation revealed the diversity and novelty of the natural isoquinoline alkaloids in H. erectum. Four major isoquinolines were identified as the bioactive constituents of H. erectum. The findings provide scientific justification to support the traditional application of H. erectum for treating inflammatory and pain disorders.
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Affiliation(s)
- Hai-Lian Yuan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincical Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincical Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
| | - Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincical Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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13
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Li FR, Liu L, Liu YP, Wang JT, Yang ML, Khan A, Qin XJ, Wang YD, Cheng GG. HRESIMS-guided isolation of aspidosperma-scandine type bisindole alkaloids from Melodinus cochinchinensis and their anti-inflammatory and cytotoxic activities. PHYTOCHEMISTRY 2021; 184:112673. [PMID: 33556841 DOI: 10.1016/j.phytochem.2021.112673] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
The Melodinus species have been proved to be good resources of bisindole alkaloids. Six bisindole alkaloids were isolated from the leaves and stems of Melodinus cochinchinensis (Lour.) Merr. guided by HRESIMS data analysis. Among them, melokhanines K-M, epi-scandomelonine, and epi-scandomeline possessed aspidosperma-scandine skeleton linked by a C-C bond while meloyine II had a scandine-scandine skeleton. The structures were established by extensive spectroscopic analysis of their HRESIMS and NMR data. Melokhanines K-M were undescribed compounds, while epi-scandomelonine, epi-scandomeline and meloyine II were known compounds, which were reported from Melodinus species for the first time. The anti-inflammatory and cytotoxic activities of the isolates were also evaluated in vitro. Melokhanine K and meloyine II showed potent inhibitory activity on the production of nitric oxide, interleukin-6, and tumor necrosis factor-α in LPS-induced RAW 264.7 macrophages, whereas epi-scandomelonine and epi-scandomeline exhibited certain cytotoxic activity against MOLT-4 cells with IC50 values 5.2 and 1.5 μM, respectively.
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Affiliation(s)
- Fang-Ru Li
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Lu Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Ya-Ping Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jin-Tang Wang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Mei-Lian Yang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yu-Dan Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China.
| | - Gui-Guang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
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14
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Ahmad S, Zahiruddin S, Parveen B, Basist P, Parveen A, Gaurav, Parveen R, Ahmad M. Indian Medicinal Plants and Formulations and Their Potential Against COVID-19-Preclinical and Clinical Research. Front Pharmacol 2021; 11:578970. [PMID: 33737875 PMCID: PMC7962606 DOI: 10.3389/fphar.2020.578970] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022] Open
Abstract
The cases of COVID-19 are still increasing day-by-day worldwide, even after a year of its first occurrence in Wuhan city of China. The spreading of SARS-CoV-2 infection is very fast and different from other SARS-CoV infections possibly due to structural differences in S proteins. The patients with severe diseases may die due to acute respiratory distress syndrome (ARDS) caused by systemic inflammatory reactions due to the excessive release of pro-inflammatory cytokines and chemokines by the immune effector cells. In India too, it is spreading very rapidly, although the case fatality rate is below 1.50% (https://www.statista.com), which is markedly less than in other countries, despite the dense population and minimal health infrastructure in rural areas. This may be due to the routine use of many immunomodulator medicinal plants and traditional AYUSH formulations by the Indian people. This communication reviews the AYUSH recommended formulations and their ingredients, routinely used medicinal plants and formulations by Indian population as well as other promising Indian medicinal plants, which can be tested against COVID-19. Special emphasis is placed on Indian medicinal plants reported for antiviral, immunomodulatory and anti-allergic/anti-inflammatory activities and they are categorized for prioritization in research on the basis of earlier reports. The traditional AYUSH medicines currently under clinical trials against COVID-19 are also discussed as well as furtherance of pre-clinical and clinical testing of the potential traditional medicines against COVID-19 and SARS-CoV-2. The results of the clinical studies on AYUSH drugs will guide the policymakers from the AYUSH systems of medicines to maneuver their policies for public health, provide information to the global scientific community and could form a platform for collaborative studies at national and global levels. It is thereby suggested that promising AYUSH formulations and Indian medicinal plants must be investigated on a priority basis to solve the current crisis.
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Affiliation(s)
- Sayeed Ahmad
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Sultan Zahiruddin
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Bushra Parveen
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Parakh Basist
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Abida Parveen
- Centre for Translational and Clinical Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Gaurav
- Bioactive Natural Product Laboratory, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
| | - Rabea Parveen
- Department of Biosciences, Jamia Millia Islamia (Central University), New Delhi, India
| | - Minhaj Ahmad
- Department of Surgery, School of Unani Medical Education and Research, Jamia Hamdard (Deemed University), New Delhi, India
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15
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Zhao YL, Pu SB, Qi Y, Wu BF, Shang JH, Liu YP, Hu D, Luo XD. Pharmacological effects of indole alkaloids from Alstonia scholaris (L.) R. Br. on pulmonary fibrosis in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113506. [PMID: 33148433 DOI: 10.1016/j.jep.2020.113506] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 10/02/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alstonia scholaris (L.) R. Br. (Apocynaceae) is a Dai folk medicine for the treatment of lung diseases in China. AIM OF THE STUDY The present study investigated the anti-pulmonary fibrosis effects of total alkaloids (TA) and the potential active ingredients and its possible mechanism. MATERIALS AND METHODS After intratracheal instillation of bleomycin (BLM, 5 mg/kg), mice were divided into ten groups, and orally treated with the corresponding samples once daily for 28 days. The effect of indole alkaloids was determined through analysis of cytokines, as well as histopathological examinations and gene expressions. RESULTS Severe lung fibrosis was observed in the BLM-treated mice on day 28. However, the administration of TA significantly ameliorated the pathological changes in the lungs, decreased the content of Krebs von den Lungen-6, lactate dehydrogenase, transforming growth factor-β (TGF-β), hydroxyproline, type I collagen, and malonaldehyde, and enhanced the activity of superoxide dismutase in the serum and lung tissues. In addition, the enhanced TGF-β and matrix metalloproteinase-1 (MMP-1) expressions in BLM-induced mice were obviously weakened by indole alkaloids, as well as the ratio of matrix metalloproteinase-1 to tissue inhibitor of metalloproteinase-1 was decreased. Moreover, picrinine and scholaricine yielded markedly better values in the aforementioned indices than those in other samples, indicating that they may be the active ingredients of alkaloids. CONCLUSIONS TA exerted protective effects against BLM-induced pulmonary fibrosis by reducing collagen deposition through TGF-β/MMP-1 pathway.
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Affiliation(s)
- Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Shi-Biao Pu
- Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Yan Qi
- Yunnan Provincial Hospital of TCM, Yunnan Province, Kunming, 650021, PR China
| | - Bai-Fen Wu
- Yunnan University of Business Management, Yunnan Province, Kunming, 650500, PR China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Di Hu
- Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, PR China
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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16
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Zhao YL, Gou ZP, Shang JH, Li WY, Kuang Y, Li MY, Luo XD. Anti-microbial Effects In Vitro and In Vivo of Alstonia scholaris. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:127-135. [PMID: 33389714 PMCID: PMC7778864 DOI: 10.1007/s13659-020-00294-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/15/2020] [Indexed: 02/05/2023]
Abstract
Alstonia scholaris could be used as a traditional medicinal plant in China for the treatment of acute respiratory, which might be caused by respiratory tract infections. The investigation tested the anti-infective effects of total alkaloids extract (TA) from leaves of A. scholaris, and as a result, TA inhibited herpes simplex virus type 1 (HSV-1), respiratory syncytial virus (RSV) and influenza A virus (H1N1) in vitro respectively. In addition, the survival days of mice were prolonged, and the lung weights and mortality of mice were decreased significantly, after oral administrated TA in H1N1 and beta-hemolytic streptococcus infectious models in vivo respectively. The finding supported partly the traditional usage of A. scholaris in the treatment of respiratory infections.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Zhong-Ping Gou
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jian-Hua Shang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Wan-Yi Li
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Yu Kuang
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Ming-Yuan Li
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
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Yuan HL, Zhao YL, Qin XJ, Liu YP, Yu HF, Zhu PF, Jin Q, Yang XW, Luo XD. Anti-inflammatory and analgesic activities of Neolamarckia cadamba and its bioactive monoterpenoid indole alkaloids. JOURNAL OF ETHNOPHARMACOLOGY 2020; 260:113103. [PMID: 32569718 DOI: 10.1016/j.jep.2020.113103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Neolamarckia cadamba has been used traditionally to treat inflammation, fever, and pruritus in the Dai ethnopharmacy in Yunnan province, P.R. China. However, according to literature survey, the action basis of anti-inflammatory and analgesic activities of this plant were rarely reported, which accounts for the original intentions of this investigation. AIM OF THE STUDY The study aimed to investigate the anti-inflammatory and analgesic action of methanolic extract (ME), ethyl acetate (EA), and aqueous (AQS) fractions of N. cadamba and further explore the accurate compounds responsible for the activities of EA fraction. MATERIALS AND METHODS The in vivo anti-inflammatory and analgesic activities of ME, EA, and AQS fractions at the doses of 200 and 400 mg/kg and two major constituents (compounds 5 and 7) at 50 and 100 mg/kg via intragastrically administrated, respectively, were evaluated by carrageenan-induced paw edema and acetic acid-stimulated writhing animal models. Aspirin (ASP) was used as the positive control at the dose of 200 mg/kg. The monoterpenoid indole alkaloids (MIAs) in EA fraction were phytochemically studied utilizing chromatographic techniques, and their structures and absolute configurations were established on the basis of multiple spectroscopic analyses and quantum computational chemistry method. Moreover, the in vitro anti-inflammatory activities of all the isolates were assessed by suppressing releases of LPS-activated inflammatory mediators (TNF-α, IL-1β, and COX-2) in RAW 264.7 macrophage cells at a concentration of 10 μg/mL. Dexamethasone (DXM) was used as the positive control. RESULTS Three fractions (ME, EA, and AQS) significantly ameliorated the paw edema caused by carrageenan and reduced the number of writhing induced by acetic acid in comparison to the control group at the doses of 200 and/or 400 mg/kg (in vivo). Subsequent phytochemical investigation of EA fraction led to the structural characterization of four new monoterpenoid indole alkaloids, neocadambines A-D (1-4), as well as eight known analogues (5-12). Neocadambine A possesses a novel 14-nor-MIA skeleton that could be derived from the corynantheine-type MIAs via oxidative cleavage of C3-C14 bond and subsequently degradation of C14. Moreover, the structure of a bioactive known MIA, cadambine acid (6), was reassigned by analysis of its NMR spectroscopic data. Further biological assays revealed that the major constituent 3β-dihydrocadambine (7) significantly relieved the paw edema and decreased the number of writhing at 100 mg/kg in vivo. In addition, most of the isolates displayed remarkable in vitro anti-inflammatory effects by inhibiting the secretion of aforementioned inflammatory mediators (COX-2, IL-1β, and TNF-α) at a concentration of 10 μg/mL, and compounds 4, 7, and 9 showed better anti-inflammatory effects than that of positive control, dexamethasone. CONCLUSIONS This study further validated the anti-inflammatory and analgesic activities of N. cadamba, and revealed that monoterpenoid indole alkaloids could partly contribute to the efficacy of this ethnodrug. The major constituent 3β-dihydrocadambine (7) showed significant anti-inflammatory activities both in vitro and in vivo, which suggested that it could be a promising anti-inflammatory lead compound. Our findings provided scientific justification to support the traditional application of N. cadamba for treating inflammatory and nociceptive disorders.
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Affiliation(s)
- Hai-Lian Yuan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Hao-Fei Yu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Pei-Feng Zhu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Qiong Jin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xing-Wei Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China; Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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Zhou HX, Li RF, Wang YF, Shen LH, Cai LH, Weng YC, Zhang HR, Chen XX, Wu X, Chen RF, Jiang HM, Wang C, Yang M, Lu J, Luo XD, Jiang Z, Yang ZF. Total alkaloids from Alstonia scholaris inhibit influenza a virus replication and lung immunopathology by regulating the innate immune response. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 77:153272. [PMID: 32702592 DOI: 10.1016/j.phymed.2020.153272] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/01/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Alstonia scholaris is a folk medicine used to treat cough, asthma and chronic obstructive pulmonary disease in China. Total alkaloids (TA) from A. scholaris exhibit anti-inflammatory properties in acute respiratory disease, which suggests their possible anti-inflammatory effect on influenza virus infection. PURPOSE To assess the clinical use of TA by demonstrating their anti-influenza and anti-inflammatory effects and the possible mechanism underlying the effect of TA on influenza A virus (IAV) infection in vitro and to reveal the inhibitory effect of TA on lung immunopathology caused by IAV infection. METHODS Antiviral and anti-inflammatory activities were assessed in Madin-Darby canine kidney (MDCK) and A549 cells and U937-derived macrophages infected with influenza A/PR/8/34 (H1N1) virus. Proinflammatory cytokine levels were measured by real-time quantitative PCR and Bio-Plex assays. The activation of innate immune signaling induced by H1N1 virus in the absence or presence of TA was detected in A549 cells by Western blot. Furthermore, mice were infected intranasally with H1N1 virus and treated with TA (50, 25 and 12.5 mg/kg/d) or oseltamivir (60 mg/kg/d) for 5 days in vivo. The survival rates and body weight were recorded, and the viral titer, proinflammatory cytokine levels, innate immune cell populations and histopathological changes in the lungs were analyzed. RESULTS TA significantly inhibited viral replication in A549 cells and U937-derived macrophages and markedly reduced cytokine and chemokine production at the mRNA and protein levels. Furthermore, TA blocked the activation of pattern recognition receptor (PRR)- and IFN-activated signal transduction in A549 cells. Critically, TA also increased the survival rate, reduced the viral titer, suppressed proinflammatory cytokine production and innate immune cell infiltration and improved lung histopathology in a lethal PR8 mouse model. CONCLUSION TA exhibits anti-viral and anti-inflammatory effects against IAV infection by interfering with PRR- and IFN-activated signal transduction.
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Affiliation(s)
- Hong-Xia Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; Dongguan People's Hospital, Dongguan, 523000, China
| | - Run-Feng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Yi-Feng Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Li-Han Shen
- Dongguan People's Hospital, Dongguan, 523000, China
| | - Li-Hua Cai
- Dongguan People's Hospital, Dongguan, 523000, China
| | - Yun-Ceng Weng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | | | - Xin-Xin Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Xiao Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Rui-Feng Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Hai-Ming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Caiyun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Mingrong Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Jingguang Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Xiao-Dong Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Zhihong Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China; Guangdong-Hong Kong-Macao Joint Laboratory of Infectious Respiratory Disease, 510000, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China; KingMed Virology Diagnostic & Translational Center, 510000, China; Guangdong-Hong Kong-Macao Joint Laboratory of Infectious Respiratory Disease, 510000, China.
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Zhao YL, Yang ZF, Wu BF, Shang JH, Liu YP, Wang XH, Luo XD. Indole alkaloids from leaves of Alstonia scholaris (L.) R. Br. protect against emphysema in mice. JOURNAL OF ETHNOPHARMACOLOGY 2020; 259:112949. [PMID: 32387234 DOI: 10.1016/j.jep.2020.112949] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/20/2020] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alstonia scholaris (L.) R. Br. (Apocynaceae) is a medicinal plant in China traditionally used to treat pulmonary diseases, including bronchitis, whooping cough, asthma and chronic obstructive pulmonary disease. AIM OF THE STUDY To provide experimental data supporting clinical adaptation of total indole alkaloids ( TA) from A. scholaris leaves for treating emphysema. MATERIALS AND METHODS An emphysema model was induced by a single intratracheal instillation of porcine pancreatic elastase followed by administration of TA and four main alkaloid components (scholaricine, 19-epischolaricine, vallesamine, and picrinine) for 30 consecutive days. Cytokine levels, histopathological parameters and protein expression in lung tissues were examined. RESULTS Administering the TA, picrinine, scholaricine, 19-epischolaricine and vallesamine for 30 days effectively inhibited inflammatory cell accumulation and invasion in the lung tissue and relieved pulmonary tissue injury. Oxygen saturation was enhanced, and interleukin (IL)-1β, monocyte-chemo attractive peptide 1, IL-11, matrix metalloproteinase-12, transforming growth factor-β and vascular endothelial growth factor levels were significantly reduced, likely by suppressing overactivation of alveolar macrophages and pulmonary fibrosis. The elastin content was markedly elevated, and fibronectin was reduced. Bcl-2 expression was significantly increased, and nuclear factor-κB and β-catenin levels were decreased. CONCLUSIONS TA can be potentially used as an effective novel drug for pulmonary emphysema and exerts its effects through not only inhibiting inflammation of the airway wall and airflow resistance but also promoting lung elastic recoil and protease/anti-protease balance.
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Affiliation(s)
- Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Bai-Fen Wu
- Yunnan University of Business Management, Yunnan Province, Kunming 650500, P. R. China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou, 511436, PR China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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Zhao YL, Su M, Shang JH, Wang X, Bao GL, Ma J, Sun QD, Yuan F, Wang JK, Luo XD. Acute and Sub-chronic Toxicity of Indole Alkaloids Extract from Leaves of Alstonia scholaris (L.) R. Br. in Beagle Dogs. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:209-220. [PMID: 32524465 PMCID: PMC7367998 DOI: 10.1007/s13659-020-00246-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 05/21/2020] [Indexed: 05/22/2023]
Abstract
Alstonia scholaris (L.) R. Br., an evergreen tropical plant rich in indole alkaloids with significant physiological activity, is traditionally used to treat respiratory diseases in China. This study was conducted to establish the toxicity profile of the alkaloid extract (TA) of A. scholaris leaves in non-rodents. After oral administration of a single dose (4 g/kg.bw), a number of transient symptoms, such as unsteady gait, drooling, emesis, and reddening of peri-oral mucosa, were observed, but no treatment-related mortality. A sub-chronic toxicity study with a range of doses of TA (20, 60 and 120 mg/kg.bw) was conducted for a 13-week treatment period, followed by 4-week recovery observation. Except for emesis and drooling in majority of animals in 120 mg/kg.bw treatment group, no clinical changes were observed in TA-treated animals. Data from electrocardiography, bone marrow, urine, fecal, hematology and clinical chemistry analyses were comparable between TA-treated and control animals. No significant differences in the relative organ weights and histopathological characteristics were evident between the TA-treated and control groups. Accordingly, the non-observed-adverse-effect-level (NOAEL) of TA was established as 120 mg/kg.bw. Our results add further knowledge to the safety database for indole alkaloid extracts from A. scholaris with potential utility as novel drug candidates.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Min Su
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jian-Hua Shang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Xia Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Guang-Lei Bao
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jia Ma
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Qing-Di Sun
- Jiangsu Nhwa Pharmaceutical Co., Ltd, Xuzhou, 221009, People's Republic of China
| | - Fang Yuan
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jing-Kun Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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21
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Zhao YL, Su M, Shang JH, Wang X, Bao GL, Ma J, Sun QD, Yuan F, Wang JK, Luo XD. Genotoxicity and Safety Pharmacology Studies of Indole Alkaloids Extract from Leaves of Alstonia scholaris (L.) R. Br. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:119-129. [PMID: 32356224 PMCID: PMC7253540 DOI: 10.1007/s13659-020-00242-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 04/17/2020] [Indexed: 05/05/2023]
Abstract
Indole alkaloids extract (IAAS) was prepared from leaves of Alstonia scholaris (L.) R. Br., an evergreen tropical plant widely distributed throughout the world. This plant has been used historically by the Dai ethnic people of China to treat respiratory diseases. This study evaluated the genotoxicity and safety pharmacology of IAAS to support clinical use. The bacterial reverse mutation (Ames) test, in vitro mammalian chromosomal aberration test, and in vivo mammalian erythrocyte micronucleus (MN) test were performed to evaluate genotoxicity. Mice were administered IAAS (240, 480, or 960 mg/kg bw) once orally to observe adverse central nervous system effects. Furthermore, beagle dogs were administered IAAS (10, 30, 60 mg/kg bw) once via the duodenum to evaluate its effects on the cardiovascular and respiratory systems. IAAS with or without S9-induced metabolic activation showed no genotoxicity in the Ames test up to 500 μg/plate, in the mammalian chromosomal aberration test up to 710 μg/mL, or in the MN test up to 800 mg/kg bw. No abnormal neurobehavioral effects were observed in mice following treatment with up to 960 mg/kg bw of IAAS. Moreover, blood pressure, heart rate, electrocardiogram parameters, and depth and rate of breathing in anesthetized beagle dogs did not differ among the IAAS doses or from the vehicle group. These data indicated that IAAS did not induce mutagenicity, clastogenicity, or genotoxicity, and no pharmaco-toxicological effects were observed in the respiratory, cardiovascular, or central nervous systems. Our results increased understanding of safety considerations associated with IAAS, and may indicate that IAAS is a possible drug candidate.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People’s Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091 People’s Republic of China
| | - Min Su
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Jian-Hua Shang
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091 People’s Republic of China
| | - Xia Wang
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Guang-Lei Bao
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Jia Ma
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Qing-Di Sun
- Jiangsu Nhwa Pharmaceutical Co., Ltd, Xuzhou, 221009 People’s Republic of China
| | - Fang Yuan
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Jing-Kun Wang
- Yunnan Institute of Medical Material, Kunming, 650111 People’s Republic of China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People’s Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091 People’s Republic of China
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Plants derived therapeutic strategies targeting chronic respiratory diseases: Chemical and immunological perspective. Chem Biol Interact 2020; 325:109125. [PMID: 32376238 PMCID: PMC7196551 DOI: 10.1016/j.cbi.2020.109125] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/16/2020] [Accepted: 04/29/2020] [Indexed: 12/23/2022]
Abstract
The apparent predicament of the representative chemotherapy for managing respiratory distress calls for an obligatory deliberation for identifying the pharmaceuticals that effectively counter the contemporary intricacies associated with target disease. Multiple, complex regulatory pathways manifest chronic pulmonary disorders, which require chemotherapeutics that produce composite inhibitory effect. The cost effective natural product based molecules hold a high fervor to meet the prospects posed by current respiratory-distress therapy by sparing the tedious drug design and development archetypes, present a robust standing for the possible replacement of the fading practice of poly-pharmacology, and ensure the subversion of a potential disease relapse. This study summarizes the experimental evidences on natural products moieties and their components that illustrates therapeutic efficacy on respiratory disorders. Plant derived therapeutics for managing chronic respiratory disorders. Activity of natural product based molecules on key regulatory pathways of COPD. Preclinical evidence for the efficacy of natural product moieties. Clinical significance of plant derived molecules in pulmonary distress.
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Zhao YL, Su M, Shang JH, Wang X, Njateng GSS, Bao GL, Ma J, Sun QD, Yuan F, Wang JK, Luo XD. Acute and Chronic Toxicity of Indole Alkaloids from Leaves of Alstonia scholaris (L.) R. Br. in Mice and Rats. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:77-88. [PMID: 32236848 PMCID: PMC7176796 DOI: 10.1007/s13659-020-00237-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/19/2020] [Indexed: 05/04/2023]
Abstract
Alstonia scholaris (L.) R. Br. (Apocynaceae) is an evergreen tree that has been used to treat lung diseases. In this study, the toxicity profile of indole alkaloids from leaves of A. scholaris was investigated. In acute toxicity tests, mice were administered total alkaloids (TA) and five indole alkaloids. In a chronic toxicity test, rats were continuously administered TA (50, 100, and 300 mg/kg bw) for 13 weeks, followed by a 4-week recovery. A single administration of TA affected the behavior of mice, and at 12.8 g/kg bw, prone position, shortness of breath, wheezing, and convulsion were observed. The half-lethal dose (LD50) in mice was 5.48 g/kg bw, almost 2740 times the clinical dose in humans. Among the five indole alkaloids, the maximum tolerance dose in mice ranged from 0.75 to 4 g/kg bw. The TA-treated rats did not die and showed no adverse effects or dose-dependent changes in weight or food and water consumption, despite fluctuations in hematological and biochemical parameters compared with historical data. Furthermore, both gross and histopathological observations revealed no abnormalities in any organ. With daily oral administration to rats, the non-observed-adverse-effect-level of TA was 100 mg/kg bw. The results indicate that TA is safe for clinical use.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Min Su
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jian-Hua Shang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Xia Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Guy Sedar Singor Njateng
- Laboratory of Microbiology and Antimicrobial Substances, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Guang-Lei Bao
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jia Ma
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Qing-Di Sun
- Jiangsu Nhwa Pharmaceutical Co., Ltd, Xuzhou, 221009, People's Republic of China
| | - Fang Yuan
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China
| | - Jing-Kun Wang
- Yunnan Institute of Medical Material, Kunming, 650111, People's Republic of China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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Amaral-Machado L, Oliveira WN, Moreira-Oliveira SS, Pereira DT, Alencar ÉN, Tsapis N, Egito EST. Use of Natural Products in Asthma Treatment. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2020; 2020:1021258. [PMID: 32104188 PMCID: PMC7040422 DOI: 10.1155/2020/1021258] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 12/14/2022]
Abstract
Asthma, a disease classified as a chronic inflammatory disorder induced by airway inflammation, is triggered by a genetic predisposition or antigen sensitization. Drugs currently used as therapies present disadvantages such as high cost and side effects, which compromise the treatment compliance. Alternatively, traditional medicine has reported the use of natural products as alternative or complementary treatment. The aim of this review was to summarize the knowledge reported in the literature about the use of natural products for asthma treatment. The search strategy included scientific studies published between January 2006 and December 2017, using the keywords "asthma," "treatment," and "natural products." The inclusion criteria were as follows: (i) studies that aimed at elucidating the antiasthmatic activity of natural-based compounds or extracts using laboratory experiments (in vitro and/or in vivo); and (ii) studies that suggested the use of natural products in asthma treatment by elucidation of its chemical composition. Studies that (i) did not report experimental data and (ii) manuscripts in languages other than English were excluded. Based on the findings from the literature search, aspects related to asthma physiopathology, epidemiology, and conventional treatment were discussed. Then, several studies reporting the effectiveness of natural products in the asthma treatment were presented, highlighting plants as the main source. Moreover, natural products from animals and microorganisms were also discussed and their high potential in the antiasthmatic therapy was emphasized. This review highlighted the importance of natural products as an alternative and/or complementary treatment source for asthma treatment, since they present reduced side effects and comparable effectiveness as the drugs currently used on treatment protocols.
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Affiliation(s)
- Lucas Amaral-Machado
- Graduate Program in Health Sciences, Dispersed System Laboratory (LaSid), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil
- Institut Galien Paris-Sud, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Wógenes N. Oliveira
- Graduate Program in Health Sciences, Dispersed System Laboratory (LaSid), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil
| | - Susiane S. Moreira-Oliveira
- Graduate Program in Health Sciences, Dispersed System Laboratory (LaSid), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil
| | - Daniel T. Pereira
- Graduate Program in Health Sciences, Dispersed System Laboratory (LaSid), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil
| | - Éverton N. Alencar
- Graduate Program in Pharmaceutical Nanotechnology, LaSid, UFRN, Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil
| | - Nicolas Tsapis
- Institut Galien Paris-Sud, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Eryvaldo Sócrates T. Egito
- Graduate Program in Health Sciences, Dispersed System Laboratory (LaSid), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil
- Graduate Program in Pharmaceutical Nanotechnology, LaSid, UFRN, Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil
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Li R, Zi MJ, Gou ZP, Zhao YL, Zhang WT, Lu F, Cao WY, Zhao YP, Li QN, Zhao Y, Wang SG, Gao HY, Sun MY, Luo XD, Xiong ZL, Gao R. Pharmacokinetics and safety evaluation in healthy Chinese volunteers of alkaloids from leaf of Alstonia scholaris: A multiple doses phase I clinical trial. PHYTOMEDICINE 2019; 61:152828. [PMID: 31055046 DOI: 10.1016/j.phymed.2019.152828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/05/2019] [Accepted: 01/09/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Alstonia scholaris (Apocynaceae) was reported to be a rich source of indole alkaloids, which exhibited remarkably bioactivities. The leaf of A. scholaris has been used in 'dai' ethno-medicine for treatment of respiratory diseases, and the defined indole alkaloids from leaf of A. scholaris has been registered as investigational new botanical drug (No. 2011L01436) and was approved for phase I/II clinical trials by China Food and Drug Administration (CFDA). PURPOSE The aim of the trial is to evaluate the safety and explore the relationship of dosing frequency and pharmacokinetics after oral administration of capsule of alkaloids from leaf of A. scholaris (CALAS) at different doses. METHODS In this randomized, open-labelled, single-center clinical trial, the safety and pharmacokinetics of CALAS were assessed in eligible healthy Chinese volunteers after oral administration of different doses. Each volunteer (n = 10 per group) received single dose of CALAS from 20 mg, 40 mg, 80 mg to 120 mg orally. The pharmacokinetics of CALAS was investigated in healthy Chinese subjects' plasma by a fully-validated LC-MS/MS method. Safety was assessed biochemically and clinically throughout the study, and drug re-excitation research was conducted to verify the correlation between investigational product and minor adverse events. The trial was registered on August 26, 2015 (http://www.chictr.org.cn/showproj.aspx?proj=11736), number ChiCTR-IPR-15006976. RESULTS 40 subjects completed the study, and as a result, vallesamine had the highest concentration in plasma of healthy volunteers, and the AUC exposure level in each compounds in turn is vallesamine > scholaricine > 19-epischolaricine > picrinine. For the safety evaluation of CALAS, two cases of minor adverse events were observed during the trial, but the drug re-excitation research indicated that these two adverse events were related to the individual's physiological variation. CONCLUSION Pharmacokinetic characteristics of each ingredient showed different patterns. 19-epischolaricine, vallesamine and picrinine were match to the linear pharmacokinetic characteristics, but scholaricine conformed to the characteristics of nonlinear pharmacokinetics. The CALAS was safe in healthy subjects under the current dose regimen.
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Affiliation(s)
- Rui Li
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Ming-Jie Zi
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Zhong-Ping Gou
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan Province, 650201, China
| | - Wan-Tong Zhang
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Fang Lu
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Wei-Yi Cao
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Ying-Pan Zhao
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Qing-Na Li
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Yang Zhao
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Shu-Ge Wang
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Hong-Yang Gao
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Ming-Yue Sun
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan Province, 650201, China.
| | - Zhi-Li Xiong
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning Province, 110016, China.
| | - Rui Gao
- Clinical Pharmacology Institute, Xiyuan Hospital, China Academy of Chinese Medicine Science, Beijing, 100091, China.
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26
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Yu HF, Huang WY, Ding CF, Wei X, Zhang LC, Qin XJ, Ma HX, Yang ZF, Liu YP, Zhang RP, Wang XH, Luo XD. Cage-like monoterpenoid indole alkaloids with antimicrobial activity from Alstonia scholaris. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Zhao YL, Yang ZF, Shang JH, Huang WY, Wang B, Wei X, Khan A, Yuan ZW, Liu YP, Wang YF, Wang XH, Luo XD. Effects of indole alkaloids from leaf of Alstonia scholaris on post-infectious cough in mice. JOURNAL OF ETHNOPHARMACOLOGY 2018; 218:69-75. [PMID: 29496577 PMCID: PMC7126965 DOI: 10.1016/j.jep.2018.02.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/25/2018] [Accepted: 02/25/2018] [Indexed: 05/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaf of Alstonia scholaris (L.) R. Br. (Apocynaceae), a wide used ethic-medicine in many Asia and Africa counties, has also been recorded as the common traditional Chinese medicine for treatment of illnesses in respiratory system by Dai people. AIM OF THE STUDY To provide experimental data of clinical adaption of total indole alkaloids (TA) from leaf of A. scholaris for treating post-infectious cough in phase II clinical trial. MATERIALS AND METHODS To model post-infectious cough, all animals except control group were instilled intra-tracheal with lipopolysaccharide (LPS) (80 μg/50 µL/mouse), followed by subsequent exposure to cigarette smoke (CS) for 30 min per day for a total of 30 days. Mice were orally given TA at dose of 10, 25, 50 mg/kg, and four main alkaloids (Sch: scholaricine, Epi: 19-epischolaricine, Val: vallesamine, Pic: picrinine) once daily. Cellular infiltration was assessed in the broncho-alveolar lavage fluid (BALF). Expression of interleukin-6 (IL-6) and C-reactive protein (CRP) in the serum was determined, the superoxide dismutase (SOD) activity as well as malondialdehyde (MDA) content in the serum and homogenate were examined. Finally, histopathological examination in the lungs was assessed by H. E. staining. RESULTS After administration of TA and four major alkaloids respectively, the symptoms of cough in mice were obviously attenuated. Total white blood cells (WBC) and neutrophils (NEU) amounts in BALF were reduced obviously and the pathological damage of lung was also attenuated. There was also significant reduction in IL-6, CRP, MDA and a marked improvement in SOD. CONCLUSIONS The efficacy of indole alkaloids against post-infectious cough (PIC) was shown in the down-regulation of inflammatory cells, cytokines, and the balance of antioxidants. What's more, the pharmacological effects of TA were better than single indole alkaloid, which might be related to the synergic effect of four major alkaloids.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Wan-Yi Huang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Afsar Khan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Zhi-Wei Yuan
- Second Hospital Affiliated to Kunming Medical University, Kunming 650101, Yunnan Province, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yi-Fen Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou 511436, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Guangzhou Medical University, Guangzhou 511436, China.
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28
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Kazimirskii AN, Poryadin GV, Salmasi ZM, Semenova LY. Endogenous Regulators of the Immune System (sCD100, Malonic Dialdehyde, and Arginase). Bull Exp Biol Med 2018; 164:693-700. [PMID: 29577184 DOI: 10.1007/s10517-018-4061-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Indexed: 11/27/2022]
Abstract
Tissue damage in various diseases, hypoxic conditions, and some pathologies are associated with production of endogenous factors such as the soluble form of the surface receptor CD100, malonic dialdehyde, and arginase and their release into circulation. These factors modulate functional state of lymphocytes in the immune system: potentiate activation of B lymphocytes, activate synthesis and secretion of IL-25 and IL-17 cytokines, and suppress proliferative activity of T lymphocytes, thus modulating immunological reactivity of the organism. Reactions of innate and adaptive immunity develop against the background of changed immunological reactivity, which should be taken into account in the development of pathogenetically substantiated therapy.
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Affiliation(s)
- A N Kazimirskii
- Department of Pathology and Clinical Pathology, N. I. Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Russia.
| | - G V Poryadin
- Department of Pathology and Clinical Pathology, N. I. Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Russia
| | - Zh M Salmasi
- Department of Pathology and Clinical Pathology, N. I. Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Russia
| | - L Yu Semenova
- Department of Pathology and Clinical Pathology, N. I. Pirogov Russian National Research Medical University of the Ministry of Health of Russia, Moscow, Russia
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29
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Recent advances on HPLC/MS in medicinal plant analysis—An update covering 2011–2016. J Pharm Biomed Anal 2018; 147:211-233. [DOI: 10.1016/j.jpba.2017.07.038] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/28/2017] [Accepted: 07/28/2017] [Indexed: 12/13/2022]
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30
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Gajaganti S, Bajpai S, Srivastava V, Singh S. An efficient, room temperature, oxygen radical anion (O2•−) mediated, one-pot, and multicomponent synthesis of spirooxindoles. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0432] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present report highlights an efficient use of oxygen radical anion to promote a room temperature multi-component synthesis of spirooxindoles (4a–4l) under mild reaction conditions. The potassium superoxide (KO2) and tetraethylammonium bromide (TEAB) combination generate the oxygen radical anion in situ to promote this transformation. This method offers a sustainable and direct access to the biologically important spirooxindole derivatives in good to excellent yields.
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Affiliation(s)
- Somaiah Gajaganti
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Shivam Bajpai
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
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