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First report on essential oil composition and biological activities of five Strobilanthes species from Kumaun Region of Uttarakhand, India. BIOCHEM SYST ECOL 2023. [DOI: 10.1016/j.bse.2023.104599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Tharmabalan RT. Identification of wild edible plants used by the Orang Asli, indigenous peoples of the Malay Peninsula. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2023. [DOI: 10.3389/fsufs.2023.1036490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BackgroundThis research focused on the different varieties of wild edible plants (WEPs) actively utilized by the Orang Asli of Malaysia and their medicinal values. The Orang Asli have been relying on these plants for their sustenance and wellbeing. However, with environmental degradation, many of these wild edibles are slowly becoming sparse, which then has a spillover effect and has resulted in the erasure of knowledge. Therefore, this research paper also aims to highlight the naming system utilized by the Orang Asli, the gender/age gap and the medicinal properties of these wild edible plants.MethodsThis research was conducted to identify the important wild edibles used among the Orang Asli, using both semi-structured and field interviews, as well as ethnobotanical appraisal methods. With the assistance of 24 informants, a total of nine wild edible plants were identified based on their importance as food and medicine for the Orang Asli groups in three different Semai settlements.Results and discussionFrom the results obtained, the wild edibles identified in the study have potential medicinal value and have been used by the Orang Asli for many generations. Also, based on my results, older Orang Asli can potentially serve as a repository of knowledge of wild edible plants within their settlements, as they were more informed than young people. However, there is little remaining knowledge of their medicinal uses in Telimau; elder women retain more knowledge than elder men in Bukit Terang, and the greatest knowledge retention for both young and old is seen in the more remote settlement of Kampung Sat.ConclusionThis research documents the medicinal uses of these wild edibles, and may provide a starting point for further studies on these species and encourage conservation initiatives, in addition to helping safeguard the indigenous knowledge and the distinct cultural identities of the Orang Asli.
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Tharmabalan RT. Nutritional Profiles of Four Promising Wild Edible Plants Commonly Consumed by the Semai in Malaysia. Curr Dev Nutr 2023. [DOI: 10.1016/j.cdnut.2023.100054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
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Tiong BYS, Yiong KH, Long W, Cheah AS, Abdul Sattar Y, Chang KA, Neo YP, Chew LY. Strobilanthes Crispus Extract Enhances Attributes of Yogurt: A Study on Physicochemical Property, Antioxidant Activity, Microbial Viability, and Consumer Acceptability. JOURNAL OF CULINARY SCIENCE & TECHNOLOGY 2022. [DOI: 10.1080/15428052.2022.2088434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Brigitte Yii Sueh Tiong
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Kin Hee Yiong
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Wenxin Long
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Ai Shyien Cheah
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Yufaan Abdul Sattar
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Kian Aun Chang
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Yun Ping Neo
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
| | - Lye Yee Chew
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University Lakeside Campus, Subang Jaya, Selangor Darul Ehsan, Malaysia
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Inhibition of Cytochrome P450s by Strobilanthes crispus Sub-Fraction (F3): Implication for Herb-Drug Interaction. Eur J Drug Metab Pharmacokinet 2022; 47:431-440. [PMID: 35146636 DOI: 10.1007/s13318-022-00754-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND AND OBJECTIVE Strobilanthes crispus Blume sub-fraction (F3) has been reported to be cytotoxic against cancer cells and to cause murine mammary tumor regression. Potential utilization of F3 as an adjuvant in breast cancer treatment to alleviate chemotherapeutic drug resistance is currently hampered by potential cytochrome P450 (CYP)-mediated herb-drug interactions (HDIs). The current study assessed the inhibitory potency of F3 towards five CYP enzymes involved in tamoxifen metabolism. METHODS Potential CYP inhibition by F3 was first determined using fluorescence assays, using known CYP inhibitors as reference. To further ascertain the inhibitory potency and mode of inhibition, high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) analysis of specific metabolites of a CYP probe substrate was conducted. RESULTS The half-maximal inhibitory concentration (IC50) values indicate that F3 exhibited relatively weak inhibition on CYP2B6, CYP2C19, CYP2D6, and CYP3A4. Highest susceptibility to inhibition by F3 was observed for CYP2C9, where the IC50 value from fluorescence-based assay was 35-fold higher than control. Further analysis by HPLC-MS/MS revealed relatively weak mixed-type inhibition of F3 on CYP2C9, as indicated by IC50 and inhibition constant (KI) values. The risk of clinically significant CYP2C9 inhibition by F3 was then predicted based on the attained KI value and the presumed amount of F3 absorbed from S. crispus leaves following consumption. The calculated maximum plasma concentration to inhibition constant Cmax/KI) ratio suggests that F3 consumption could potentially result in clinically significant drug interactions with medications metabolized by CYP2C9. CONCLUSION Taken together, the results revealed a low probability of inhibition by F3 on CYP enzymes involved in tamoxifen metabolism. However, further in vivo investigation is necessary for potential F3 interaction with CYP2C9. The utility of a preliminary in vitro approach in the assessment of potential HDI was demonstrated in this study.
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Anticancer Properties of Strobilanthes crispus: A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9081370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cancer is a major cause of death worldwide, as exemplified by millions of cancer diagnoses every year. The use of chemotherapy in treating cancer has many disadvantages which include recurrence of cancer, associated with drug resistance, and severe side effects that are harmful to the patients. A better source of anticancer drugs can come from nature. Strobilanthes crispus (S. crispus) is a herbal medicinal plant that is indigenous in Madagascar and the Malay Archipelago. The plant possesses high vitamin and mineral content as well as phytochemicals—like phenols, catechins, tannins, and flavonoids—that are known to have therapeutic effects. Numerous preclinical studies have reported very versatile pharmacological effects of this plant, such as anticancer, antimicrobial, antioxidant, anti-angiogenesis, anti-diabetes, anti-ulcerogenic, and wound healing. Herein, this paper reviews the anticancer properties of S. crispus, providing information for future research and further exploration.
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La2CuO4-decorated ZnO nanoparticles with improved photocatalytic activity for malachite green degradation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137749] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Bonam SR, Wu YS, Tunki L, Chellian R, Halmuthur MSK, Muller S, Pandy V. What Has Come out from Phytomedicines and Herbal Edibles for the Treatment of Cancer? ChemMedChem 2018; 13:1854-1872. [PMID: 29927521 DOI: 10.1002/cmdc.201800343] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/19/2018] [Indexed: 12/20/2022]
Abstract
Several modern treatment strategies have been adopted to combat cancer with the aim of minimizing toxicity. Medicinal plant-based compounds with the potential to treat cancer have been widely studied in preclinical research and have elicited many innovations in cutting-edge clinical research. In parallel, researchers have eagerly tried to decrease the toxicity of current chemotherapeutic agents either by combining them with herbals or in using herbals alone. The aim of this article is to present an update of medicinal plants and their bioactive compounds, or mere changes in the bioactive compounds, along with herbal edibles, which display efficacy against diverse cancer cells and in anticancer therapy. It describes the basic mechanism(s) of action of phytochemicals used either alone or in combination therapy with other phytochemicals or herbal edibles. This review also highlights the remarkable synergistic effects that arise between certain herbals and chemotherapeutic agents used in oncology. The anticancer phytochemicals used in clinical research are also described; furthermore, we discuss our own experience related to semisynthetic derivatives, which are developed based on phytochemicals. Overall, this compilation is intended to facilitate research and development projects on phytopharmaceuticals for successful anticancer drug discovery.
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Affiliation(s)
- Srinivasa Reddy Bonam
- UMR 7242 CNRS, Biotechnology and Cell Signaling, University of Strasbourg, Laboratory of Excellence Medalis, Illkirch, 67400, France.,Vaccine Immunology Laboratory, Natural Product Chemistry Division, CSIR - Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India.,Academy of Scientific and Innovative Research, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Yuan Seng Wu
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Lakshmi Tunki
- Vaccine Immunology Laboratory, Natural Product Chemistry Division, CSIR - Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India
| | - Ranjithkumar Chellian
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mahabalarao Sampath Kumar Halmuthur
- Vaccine Immunology Laboratory, Natural Product Chemistry Division, CSIR - Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India.,Academy of Scientific and Innovative Research, CSIR - Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Sylviane Muller
- UMR 7242 CNRS, Biotechnology and Cell Signaling, University of Strasbourg, Laboratory of Excellence Medalis, Illkirch, 67400, France.,University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, 67000, France
| | - Vijayapandi Pandy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.,Department of Pharmacology, Chalapathi Institute of Pharmaceutical Sciences, Lam, Guntur, Andhra Pradesh, 522034, India
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Koh RY, Lim FP, Ling LSY, Ng CPL, Liew SF, Yew MY, Tiong YL, Ling APK, Chye SM, Ng KY. Anticancer mechanisms of Strobilanthes crispa Blume hexane extract on liver and breast cancer cell lines. Oncol Lett 2017; 14:4957-4964. [PMID: 29085507 DOI: 10.3892/ol.2017.6821] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 03/23/2017] [Indexed: 12/31/2022] Open
Abstract
Cancer is a major public health concern not only in developed countries, but also in developing countries. It is one of the leading causes of mortality worldwide. However, current treatments may cause severe side effects and harm. Therefore, recent research has been focused on identifying alternative therapeutic agents extracted from plant-based sources in order to develop novel treatment options for cancer. Strobilanthes crispa Blume is a plant native to countries including Madagascar and Indonesia. It has been used as an anti-diabetic, diuretic and laxative in traditional folk medicine. Furthermore, S. crispa has potential in treating cancer, as evidenced in previous studies. In the present study, the cytotoxic and apoptotic activities of S. crispa crude extracts were investigated in liver and breast cancer cell lines. Hexane, ethyl acetate, chloroform, methanol and water extracts prepared from the leaves, and stems of S. crispa were evaluated for their cytotoxicity on HepG-2 and MDA-MB-231 cells using an MTT assay. The anti-proliferative properties of stem hexane (SH) extract on both cell lines were analysed using cell doubling time determination and cell cycle analysis, while the apoptogenic properties was determined through the detection of caspase-8. Among the extracts tested, SH extract exhibited the lowest half maximal inhibitory concentrations in both the cell lines. The SH extract induced morphological changes in HepG-2 and MDA-MB-231 cells, and significantly delayed cell population doubling time. Furthermore, it altered cell cycle profile and significantly increased caspase-8 activity in HepG-2 cells, but not in MDA-MB-231 cells. In conclusion, the SH extract of S. crispa possesses potent anticancer properties and may be a suitable chemotherapeutic target.
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Affiliation(s)
- Rhun Yian Koh
- Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Foong Ping Lim
- Pharmacy Program, School of Pharmacy, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Leslie Siing Yie Ling
- Pharmacy Program, School of Pharmacy, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Catherine Pei Ling Ng
- Biomedical Science Program, School of Health Sciences, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Siew Foong Liew
- Biomedical Science Program, School of Health Sciences, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Mei Yeng Yew
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
| | - Yee Lian Tiong
- School of Postgraduate Studies and Research, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Anna Pick Kiong Ling
- Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Soi Moi Chye
- Division of Applied Biomedical Science and Biotechnology, School of Health Sciences, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Khuen Yen Ng
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Selangor, Malaysia
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Ghasemzadeh A, Jaafar HZE, Rahmat A. Phytochemical constituents and biological activities of different extracts of Strobilanthes crispus (L.) Bremek leaves grown in different locations of Malaysia. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:422. [PMID: 26613959 PMCID: PMC4662829 DOI: 10.1186/s12906-015-0873-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 09/23/2015] [Indexed: 11/29/2022]
Abstract
Background Strobilanthes crispus is a well-known herb in Malaysia with various pharmaceutical properties. S. crispus is known to contain several biologically active chemical constituents which are responsible for its pharmaceutical quality. Methods Strobilanthes crispus leaves grown in three different locations in Malaysia [Kelantan (North-east), Selangor (Central), and Penang (North)], were investigated for differences in the content of secondary metabolites [total phenolics content (TPC), total flavonoids content (TFC), and total saponins content (TSC)] as well as for their antioxidant and anticancer properties. Phenolic acids and flavonoids were identified using ultra-high performance liquid chromatography (UHPLC). Ferric reducing antioxidant potential (FRAP) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays were used to evaluate the antioxidant activities. The anticancer activity of extracts against HeLa cancer cell line was evaluated using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. Results Samples from the three different locations when extracted with two solvents (aqueous and ethanol extracts) yielded significantly different results for TPC, TFC, and TSC as well as for antioxidant activity. Aqueous extract of S. crispus leaves collected from Kelantan exhibited the highest values: TPC [12.62 mg gallic acid equivalents (GAE)/g dry matter (DM)], TFC (7.44 mg quercetin equivalents (QE)/g DM), TSC (44.7 mg diosgenin equivalents (DE)/g DM), DPPH (73.8 %), and FRAP (267.5 μM of Fe (II)/g) activity with a half-maximal inhibitory concentration (IC50) of 44.1 μg/mL compared to the extracts of leaves collected from the other two locations. The most important secondary metabolites identified in this study, based on concentration, were phenolics classified as followed: caffeic acid>ferulic acid>gallic acid>chlorogenic acid>trans-cinnamic acid; flavonoids: quercetin>rutin>catechin>apigenin>naringenin>kaempferol. Extracts of leaves collected from Kelantan exhibited better anticancer activity against HeLa cancer cell line with an IC50 of 182.5 μg/mL compared to the extracts of leaves from Selangor (IC50 = 266.4 μg/mL) and Penang (IC50 = 331.5 μg/mL) and to tamoxifen (IC50 = 63.4 μg/mL). S. crispus leaves with the highest content of secondary metabolites exhibited the most potent antioxidant and anticancer activity. Conclusions Therefore, based on the potent antioxidant and anticancer activity of leaves extracts, it appears that S. crispus grown in the North-east of Malaysia (Kelantan) is a potential source of anticarcinogenic therapeutic compounds.
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Al-Henhena N, Khalifa SAM, Ying RPY, Ismail S, Hamadi R, Shawter AN, Idris AM, Azizan A, Al-Wajeeh NS, Abdulla MA, El-Seedi HR. Evaluation of chemopreventive potential of Strobilanthes crispus against colon cancer formation in vitro and in vivo. Altern Ther Health Med 2015; 15:419. [PMID: 26608653 PMCID: PMC4658747 DOI: 10.1186/s12906-015-0926-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 11/02/2015] [Indexed: 12/26/2022]
Abstract
Background With cancer being one of the major causes of death around the world, studies are ongoing to find new chemotherapeutic leads. There are common mechanisms for colorectal cancer (CRC) formation. Several are connected with oxidative stress-induced cell apoptosis and others are related to imbalanced homeostasis or intake of drugs/toxins. Plants that have been used for decades in folk and traditional medicine have been accepted as one of the commonest sources of discovered natural agents of cancer chemotherapy and chemoprevention. The aim was to study the antioxidant and chemopreventive effects of Strobilanthes crispus on colorectal cancer formation. Methods Five groups of rats were injected subcutaneously with AOM, 15 mg/kg body weight, each once weekly for 2 weeks. The cancer group was continued on 10 % Tween-20 feeding for 8 weeks. The standard drug group was continued on 35 mg/kg 5-fluorouracil intraperitoneal injection twice a week for 8 weeks, and the experimental groups were continued on 250 and 500 mg/kg S. crispus extract oral feeding for 8 weeks, respectively. The normal group was injected subcutaneously with normal saline once a week for 2 weeks, followed by oral administration of 10 % Tween-20 for 8 weeks. All the rats were sacrificed after 10 weeks. The colons were evaluated grossly and histopathologically for aberrant crypt foci (ACF). Gene expression was performed for Bax, Bcl2, Defa24, Slc24a3, and APC genes by real-time PCR. S. crispus and its fractions were evaluated for their chemopreventive effects against human colorectal adenocarcinoma cell line HT29 and cytotoxicity for normal human colon epithelial cell line CCD 841, and the active fraction was assessed for its components. Results We observed significant decrease in total colonic ACF formation, malonaldehyde (MDA) and lactate dehydrogenase (LDH), increase in superoxide dismutase (SOD), up-regulation of APC, Bax and Slc24a3, and down-regulation of Defa24 and Bcl-2 in rats treated with Strobilanthes crispus. Conclusion Our results support the in vivo protection of S. crispus against CRC formation (azoxymethane-induced aberrant crypt foci) and suggest that the mechanism is highly specific to protect from oxidative insults and the following apoptotic cascade. Electronic supplementary material The online version of this article (doi:10.1186/s12906-015-0926-7) contains supplementary material, which is available to authorized users.
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Yaacob NS, Yankuzo HM, Devaraj S, Wong JKM, Lai CS. Anti-Tumor Action, Clinical Biochemistry Profile and Phytochemical Constituents of a Pharmacologically Active Fraction of S. crispus in NMU-Induced Rat Mammary Tumour Model. PLoS One 2015; 10:e0126426. [PMID: 26000968 PMCID: PMC4441459 DOI: 10.1371/journal.pone.0126426] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 04/02/2015] [Indexed: 11/19/2022] Open
Abstract
Cancer patients seek alternative remedies such as traditional medicinal plants for safe and effective treatment and help overcome the side effects of conventional therapy. Current knowledge indicates that extracts of Strobilanthes crispus of the Acanthaceae family exhibit potent anticancer properties in vitro and are non-toxic in vivo. S. crispus was also reported to be protective against chemical hepatocarcinogenesis. We previously showed that a bioactive fraction of S. crispus leaves also synergized with tamoxifen to cause apoptosis of human breast cancer cell lines without damaging non-malignant epithelial cells. The present study aimed to evaluate the antitumor effect of S. crispus dichloromethane fraction (F3) using N-methyl-N-Nitrosourea (NMU)-induced rat mammary tumor model. Tumor regression was observed in 75% of the rats following 8-week oral administration of F3 with no secondary tumour formation and no signs of anemia or infection. However, no improvement in the liver and renal function profiles was observed. Major constituents of F3 were identified as lutein, 131-hydroxy-132-oxo-pheophytin a, campesterol, stigmasterol, β-sitosterol, pheophytin a and 132-hydroxy-pheophytin a. These compounds however, may not significantly contribute to the antitumor effect of F3.
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Affiliation(s)
- Nik Soriani Yaacob
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- * E-mail: (NSY); (CSL)
| | - Hassan Muhammad Yankuzo
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Sutha Devaraj
- Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Jimmy Ka Ming Wong
- Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Choon-Sheen Lai
- Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
- * E-mail: (NSY); (CSL)
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Nutritional quality and acceptability of Buddleja saligna herbal tea. Journal of Food Science and Technology 2015. [DOI: 10.1007/s13197-015-1870-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lim KT, Lim V, Chin JH. Subacute oral toxicity study of ethanolic leaves extracts of Strobilanthes crispus in rats. Asian Pac J Trop Biomed 2015; 2:948-52. [PMID: 23593574 DOI: 10.1016/s2221-1691(13)60005-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 11/15/2012] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To examine the oral toxicity of repeated dosing of Strobilanthes crispus (S. crispus) ethanol leaves extract on the liver and kidney functions in Sprague Dawley rats. METHODS Young female rats aged between 8 and 12 week-old were randomly assigned into four groups with five animals each group (n=5). The first group served as control, while the second, third and fourth groups were orally treated with a single dose daily with 150 mg/kg, 300 mg/kg, and 600 mg/kg of S. crispus ethanol leaves extract for 14 d consecutively. Cage-side observation was conducted for first 4 h after each dosing. The body weight changes, food consumptions and water intake were also recorded. Serum biochemical parameters, i.e., aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, creatinine and urea were determined at Day 15. All results were expressed as mean±SD and analysed using Dunnett's test. RESULTS It was obtained that 14-day oral administration of S. crispus ethanol leaves extract did not cause any adverse effects or lethality to the female Sprague Dawley rats. No significant changes in serum biochemical parameters, relative organs weights, body weights, food intake and water consumptions were observed between the treatment groups and control. CONCLUSIONS In conclusion, 14-day oral administration of S. crispus ethanol leaves extract was safe to be consumed in female rats without affecting the liver and kidney functions.
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Affiliation(s)
- Kean Tatt Lim
- Faculty of Pharmaceutical Sciences, UCSI University, No. 1, Jalan Menara Gading, 56000 Cheras, Kuala Lumpur, Malaysia
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Gomathi D, Ravikumar G, Kalaiselvi M, Devaki K, Uma C. Antioxidant activity and functional group analysis of Evolvulus alsinoides. Chin J Nat Med 2014; 12:827-32. [PMID: 25480513 DOI: 10.1016/s1875-5364(14)60124-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Indexed: 11/19/2022]
Abstract
AIM AMany oxidative stress-related diseases occur as a result of the accumulation of free radicals in the body. Free radicals are generated by various endogenous systems, exposure to different physiochemical conditions, or pathological states. A balance between free radicals and antioxidants is necessary for appropriate physiological function. A lot of studies are going on worldwide directed towards finding natural antioxidants of plant origin. FTIR spectroscopy is used to develop a rapid and effective analytical method for studying the main constituents in medicinal plants. The chemical constituents in the plants were identified and monitored for their medicinal properties. The aim of this study was to evaluate the in vitro antioxidant activities and FTIR spectroscopic analysis of the ethanolic extract of Evolvulus alsinoides. METHOD Free radical scavenging activity of ethanolic extract of the whole plant of E. alsinoides was evaluated by in vitro methods, including total antioxidant assay (FRAP method) and hydrogen peroxide scavenging activity using ascorbic acid as a standard. The degree of lipid peroxidation was examined by estimating the thiobarbituric acid reactive substances (TBARS) using standard methods and the functional groups were analyzed using FTIR spectroscopy. The IR spectrum in the mid-infrared region 4 000-400 cm(-1) was used for discriminatio and to identify various functional groups present in E. alsinoides. RESULTS The findings indicated the presence of amino acids, amides, amines, carboxylic acids, carbonyl compounds, organic hydrocarbons, and halogens in the ethanolic extract of E. alsinoides, and the antioxidant activities were significantly increased, when compared with the standard antioxidant ascorbic acid, in a dose-dependent manner. CONCLUSION The findings indicated promising antioxidant activity of the crude extract of E. alsinoides, and needs further exploration for their potential effective use.
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Affiliation(s)
- Duraisamy Gomathi
- Food Analyst, Post Harvest Technology Centre, Tamil Nadu Agricultural University, Coimbatore
| | - Ganesan Ravikumar
- Research Associate, Dalmia Centre for Research and Development, Coimbatore
| | - Manokaran Kalaiselvi
- Assistant Professor, Departments of Biotechnology, Kongunadu Arts and Science College, Coimbatore
| | | | - Chandrasekar Uma
- Department of Biochemistry, College of Medicine & Health Science, Hawassa University, Hawassa, Ethiopia.
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Siew YY, Zareisedehizadeh S, Seetoh WG, Neo SY, Tan CH, Koh HL. Ethnobotanical survey of usage of fresh medicinal plants in Singapore. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:1450-1466. [PMID: 25058874 DOI: 10.1016/j.jep.2014.07.024] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/25/2014] [Accepted: 07/14/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The use of medicinal plants in human health has been documented since ancient times and they provide a useful source of new therapeutics. In Singapore, despite the accessibility to modern healthcare, there still exist pockets of the population who choose to use locally grown fresh medicinal plants for health promotion and even therapeutic purposes. However to date, there is no published report of first-hand account of their usage in Singapore. As land is scarce and rapidly used for re-development, such important knowledge may be lost if not properly documented in time. This work safeguards the local folk knowledge, and provides information on common and scarcely reported fresh medicinal plants. The objective of this study is to gather information regarding the usage of fresh medicinal plants in Singapore through face-to-face interviews. MATERIALS AND METHODS Information on demographic data and plant-use methods were collated via face-to-face interviews of 200 fresh medicinal plant users who have used fresh medicinal plants in the last five years. The survey protocol was approved by the National University of Singapore Institutional Review Board and informed consent was obtained from every participant. RESULTS A total of 414 plants represented by 104 plant species from 44 families were reportedly used by the 200 participants. The five most commonly used plants were Clinacanthus nutans (34 users), Strobilanthes crispus (31 users), Pereskia bleo (25 users), Aloe vera (18 users) and Zingiber officinale (16 users). Leaves were the most commonly used plant part while preparing a decoction was the most common method of preparation. The majority of interviewees used plants for general health purposes and to treat diseases related to the respiratory system and cancer. CONCLUSIONS Our survey has successfully documented the rich wealth of traditional usage and knowledge on 414 fresh medicinal plants grown in Singapore through face-to-face interviews with 200 users. This study will serve as a useful resource for identifying promising plants for future drug discovery efforts. Scientific evaluations of these medicinal plants are warranted and should be carried out.
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Affiliation(s)
- Yin-Yin Siew
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Sogand Zareisedehizadeh
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Wei-Guang Seetoh
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Soek-Ying Neo
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Chay-Hoon Tan
- Department of Pharmacology, Yong Loo Lin School of Medicine, 10 Medical Drive, Block MD11, #05-09, Singapore 117597, Singapore
| | - Hwee-Ling Koh
- Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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Synergistic anticancer effects of a bioactive subfraction of Strobilanthes crispus and tamoxifen on MCF-7 and MDA-MB-231 human breast cancer cell lines. Altern Ther Health Med 2014; 14:252. [PMID: 25034326 PMCID: PMC4223515 DOI: 10.1186/1472-6882-14-252] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 07/11/2014] [Indexed: 12/21/2022]
Abstract
Background Development of tumour resistance to chemotherapeutic drugs and concerns over their toxic effects has led to the increased use of medicinal herbs or natural products by cancer patients. Strobilanthes crispus is a traditional remedy for many ailments including cancer. Its purported anticancer effects have led to the commercialization of the plant leaves as medicinal herbal tea, although the scientific basis for its use has not been established. We previously reported that a bioactive subfraction of Strobilanthes crispus leaves (SCS) exhibit potent cytotoxic activity against human breast cancer cell lines. The current study investigates the effect of this subfraction on cell death activities induced by the antiestrogen drug, tamoxifen, in estrogen receptor-responsive and nonresponsive breast cancer cells. Methods Cytotoxic activity of SCS and tamoxifen in MCF-7 and MDA-MB-231 human breast cancer cells was determined using lactate dehydrogenase release assay and synergism was evaluated using the CalcuSyn software. Apoptosis was quantified by flow cytometry following Annexin V and propidium iodide staining. Cells were also stained with JC-1 dye to determine changes in the mitochondrial membrane potential. Fluorescence imaging using FAM-FLICA assay detects caspase-8 and caspase-9 activities. DNA damage in the non-malignant breast epithelial cell line, MCF-10A, was evaluated using Comet assay. Results The combined SCS and tamoxifen treatment displayed strong synergistic inhibition of MCF-7 and MDA-MB-231 cell growth at low doses of the antiestrogen. SCS further promoted the tamoxifen-induced apoptosis that was associated with modulation of mitochondrial membrane potential and activation of caspase-8 and caspase-9, suggesting the involvement of intrinsic and extrinsic signaling pathways. Interestingly, the non-malignant MCF-10A cells displayed no cytotoxicity or DNA damage when treated with either SCS or SCS-tamoxifen combination. Conclusions The combined use of SCS and lower tamoxifen dose could potentially reduce the side effects/toxicity of the drug. However, further studies are needed to determine the effectiveness and safety of the combination treatment in vivo.
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Nur Sazwi N, Nalina T, Rahim ZHA. Antioxidant and cytoprotective activities of Piper betle, Areca catechu, Uncaria gambir and betel quid with and without calcium hydroxide. Altern Ther Health Med 2013; 13:351. [PMID: 24330738 PMCID: PMC4029269 DOI: 10.1186/1472-6882-13-351] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 12/09/2013] [Indexed: 11/21/2022]
Abstract
Background Betel quid chewing is a popular habit in Southeast Asia. It is believed that chewing betel quid could reduce stress, strengthen teeth and maintain oral hygiene. The aim of this study was to investigate the antioxidant and cytoprotective activities of each of the ingredients of betel quid and compared with betel quid itself (with and without calcium hydroxide). The correlation of their cytoprotective and antioxidant activities with phenolic content was also determined. Methods Five samples (betel leaf, areca nut, gambir, betel quid and betel quid containing calcium hydroxide) were extracted in deionized distilled water for 12 hours at 37°C. Antioxidant activities were evaluated for radical scavenging activity using DPPH assay, ferric reducing activity using FRAP assay and lipid peroxidation inhibition activity using FTC assay. Total phenolic content (TPC) was determined using Folin-Ciocalteu procedure. Phenolic composition was analyzed using LC-MS/MS. Cytoprotective activity towards human gingival fibroblast cells was examined using MTT assay. Results Among the ingredients of betel quid, gambir demonstrated the highest antioxidant (DPPH - IC50 = 6.4 ± 0.8 μg/mL, FRAP - 5717.8 ± 537.6 μmol Fe(II)/mg), total phenolic content (TPC - 1142.5 ± 106.8 μg TAE/mg) and cytoprotective (100.1 ± 4.6%) activities. Betel quid when compared with betel quid containing calcium hydroxide has higher antioxidant (DPPH - IC50 =59.4 ± 4.4 μg/mL, FRAP - 1022.2 ± 235.7 μmol Fe(II)/mg), total phenolic content (TPC - 140.0 ± 22.3 μg TAE/mg), and cytoprotective (113.5 ± 15.9%) activities. However, all of the five samples showed good lipid peroxidation inhibition compared to vitamin E. LC-MS/MS analysis revealed the presence of quinic acid as the major compound of gambir and betel quid. A positive correlation was observed between TPC and radical scavenging (r = 0.972), reducing power (r = 0.981) and cytoprotective activity (r = 0.682). Conclusions The betel quid has higher TPC, and antioxidant and cytoprotective activities than betel quid with calcium hydroxide. The quinic acid in betel quid may play an important role in the oral health protection.
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Ismail M, Gururaj B, Shahid I, Adamu HA. Anticancer properties and phenolic contents of sequentially prepared extracts from different parts of selected medicinal plants indigenous to Malaysia. Molecules 2012; 17:5745-56. [PMID: 22628046 PMCID: PMC6268718 DOI: 10.3390/molecules17055745] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 05/12/2012] [Accepted: 05/14/2012] [Indexed: 01/19/2023] Open
Abstract
Different parts of four edible medicinal plants (Casearia capitellata, Baccaurea motleyana, Phyllanthus pulcher and Strobilanthus crispus), indigenous to Malaysia, were extracted in different solvents, sequentially. The obtained 28 extracts were evaluated for their in vitro anticancer properties, using the MTS assay, on four human cancer cell lines: colon (HT-29), breast (MCF-7), prostate (DU-145) and lung (H460) cancers. The best anticancer activity was observed for the ethyl acetate (EA) extract of Casearia capitellata leaves on MCF-7 cell lines with IC₅₀ 2.0 μg/mL and its methanolic (MeOH) extract showed an outstanding activity against lung cancer cell lines. Dichloromethane (DCM) extract of Phyllanthus pulcher aerial parts showed the highest anticancer activity against DU-145 cell lines, while significant activity was exhibited by DCM extract of Phyllanthus pulcher roots on colon cancer cell lines with IC50 value of 8.1 μg/mL. Total phenolic content (TPC) ranged over 1-40 mg gallic acid equivalents (GAE)/g. For all the samples, highest yields of phenolics were obtained for MeOH extracts. Among all the extracts analyzed, the MeOH extracts of Strobilanthus crispus leaves exhibited the highest TPC than other samples (p < 0.05). This study shows that the nature of phenol determines its anticaner activity and not the number of phenols present.
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Affiliation(s)
- Maznah Ismail
- Laboratory of Molecular BioMedicine, Insitute of Bioscience, University Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia; (S.I.)
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, University Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Bagalkotkar Gururaj
- Author to whom correspondence should be addressed; or ; Tel.: +60-38947-2115; Fax: +60-38947-2116
| | - Iqbal Shahid
- Author to whom correspondence should be addressed; or ; Tel.: +60-38947-2115; Fax: +60-38947-2116
| | - Hadiza Altine Adamu
- Author to whom correspondence should be addressed; or ; Tel.: +60-38947-2115; Fax: +60-38947-2116
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Kartika H, Shido J, Nakamoto S, Li Q, Iwaoka W. Nutrient and mineral composition of dried mamaki leaves (Pipturus albidus) and infusions. J Food Compost Anal 2011. [DOI: 10.1016/j.jfca.2010.03.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Muslim N, Ng K, Itam A, Nassa Z, Ismail Z, Abdul Maji A. Evaluation of Cytotoxic, Anti-angiogenic and Antioxidant Properties of Standardized Extracts of Strobilanthes crispus Leaves. INT J PHARMACOL 2010. [DOI: 10.3923/ijp.2010.591.599] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Yaacob NS, Hamzah N, Nik Mohamed Kamal NN, Zainal Abidin SA, Lai CS, Navaratnam V, Norazmi MN. Anticancer activity of a sub-fraction of dichloromethane extract of Strobilanthes crispus on human breast and prostate cancer cells in vitro. Altern Ther Health Med 2010; 10:42. [PMID: 20684795 PMCID: PMC2924269 DOI: 10.1186/1472-6882-10-42] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2010] [Accepted: 08/05/2010] [Indexed: 11/10/2022]
Abstract
BACKGROUND The leaves of Strobilanthes crispus (S. crispus) which is native to the regions of Madagascar to the Malay Archipelago, are used in folk medicine for their antidiabetic, diuretic, anticancer and blood pressure lowering properties. Crude extracts of this plant have been found to be cytotoxic to human cancer cell lines and protective against chemically-induced hepatocarcinogenesis in rats. In this study, the cytotoxicity of various sub-fractions of dichloromethane extract isolated from the leaves of S. crispus was determined and the anticancer activity of one of the bioactive sub-fractions, SC/D-F9, was further analysed in breast and prostate cancer cell lines. METHODS The dichloromethane extract of S. crispus was chromatographed on silica gel by flash column chromatography. The ability of the various sub-fractions obtained to induce cell death of MCF-7, MDA-MB-231, PC-3 and DU-145 cell lines was determined using the LDH assay. The dose-response effect and the EC50 values of the active sub-fraction, SC/D-F9, were determined. Apoptosis was detected using Annexin V antibody and propidium iodide staining and analysed by fluorescence microscopy and flow cytometry, while caspase 3/7 activity was detected using FLICA caspase inhibitor and analysed by fluorescence microscopy. RESULTS Selected sub-fractions of the dichloromethane extract induced death of MCF-7, MDA-MB-231, PC-3 and DU-145 cells. The sub-fraction SC/D-F9, consistently killed breast and prostate cancer cell lines with low EC50 values but is non-cytotoxic to the normal breast epithelial cell line, MCF-10A. SC/D-F9 displayed relatively higher cytotoxicity compared to tamoxifen, paclitaxel, docetaxel and doxorubicin. Cell death induced by SC/D-F9 occurred via apoptosis with the involvement of caspase 3 and/or 7. CONCLUSIONS A dichloromethane sub-fraction of S. crispus displayed potent anticancer activities in vitro that can be further exploited for the development of a potential therapeutic anticancer agent.
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Supercritical carbon dioxide extraction of bioactive flavonoid from Strobilanthes crispus (Pecah Kaca). FOOD AND BIOPRODUCTS PROCESSING 2010. [DOI: 10.1016/j.fbp.2009.02.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Iqbal M, Shah MD, Lie CA, San CK. Strobilanthes crispus attenuates renal carcinogen, iron nitrilotriacetate (Fe-NTA)-mediated oxidative damage of lipids and DNA. Mol Cell Biochem 2010; 341:271-7. [PMID: 20376534 DOI: 10.1007/s11010-010-0458-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 03/25/2010] [Indexed: 11/24/2022]
Abstract
This study was aimed to evaluate the effect of Strobilanthes crispus extract for possible protection against lipid peroxidation and DNA damage induced by iron nitrilotriacetate (Fe-NTA) and hydrogen peroxide (H(2)O(2)). Fe-NTA is a potent nephrotoxic agent and induces acute and subacute renal proximal tubular necrosis by catalyzing the decomposition of H(2)O(2)-derived production of hydroxyl radicals, which are known to cause lipid peroxidation and DNA damage. Incubation of postmitochondrial supernatant and/or calf thymus DNA with H(2)O(2) (40 mM) in the presence of Fe-NTA (0.1 mM) induces lipid peroxidation and DNA damage to about 2.3-fold and 2.9-fold, respectively, as compared to control (P < 0.05). In lipid peroxidation protection studies, S. crispus treatment showed a dose-dependent inhibition (45-53% inhibition, P < 0.05) of Fe-NTA and H(2)O(2) induced lipid peroxidation. Similarly, in DNA damage protection studies, S. crispus treatment also showed a dose-dependent inhibition (18-30% inhibition, P < 0.05) of DNA damage. In addition, the protection was closely related to the content of phenolic compounds as evident by S. crispus extract showing the value of 124.48 mg/g total phenolics expressed as gallic acid equivalent (GAE, mg/g of extract). From these studies, it is concluded that S. crispus inhibits peroxidation of membrane lipids and DNA damage induced by Fe-NTA and H(2)O(2) and possesses the potential to be used to treat or prevent degenerative diseases where oxidative stress is implicated.
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Affiliation(s)
- Mohammad Iqbal
- Biotechnology Research Institute, University Malaysia Sabah, Locked Bag No 2073, 88999 Kota Kinabalu, Sabah, Malaysia.
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Norfarizan N, Asmah R, Rokiah M, Fauziah O, Faridah H. Effects of Strobilanthes crispus Juice on Wound Healing and Antioxidant Enzymes in Normal and Streptozotocin-Induced Diabetic Rats. ACTA ACUST UNITED AC 2009. [DOI: 10.3923/jbs.2009.662.668] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Norfarizan N, Asmah R, Rokiah M, Fauziah O, Faridah H. Antihyperglycemic, Hypolipidemic and Antioxidant Enzymes Effect of Strobilanthes crispus Juice in Normal and Streptozotocin-Induced Diabetic Male and Female Rats. INT J PHARMACOL 2009. [DOI: 10.3923/ijp.2009.200.207] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ly SY, Lee CH, Jung YS. Voltammetric Bioassay of Caffeine using Sensor Implant. Neuromolecular Med 2009; 11:20-7. [DOI: 10.1007/s12017-008-8057-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Accepted: 12/11/2008] [Indexed: 10/21/2022]
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Fadzelly ABM, Asmah R, Fauziah O. Effects of Strobilanthes crispus tea aqueous extracts on glucose and lipid profile in normal and streptozotocin-induced hyperglycemic rats. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2006; 61:7-12. [PMID: 16688478 DOI: 10.1007/s11130-006-0002-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Strobilanthes crispus (Acanthaceae) has been used traditionally as antidiabetic, diuretic, antilytic, and laxative and has been proven scientifically to possess high antioxidant activity, anti-AIDS, and anticancer properties. It is commonly consumed in the form of herbal tea. The ethnopharmacological value of this plant, such as the development of nutraceutical S. crispus herbal tea (fermented and unfermented) and assessment of their antihyperglycemic properties were investigated. The antidiabetic properties of S. crispus fermented and unfermented tea was carried out in normal and streptozotocin-induced hyperglycaemic rats for 21 days. Glucose and lipid profile (total cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol) were determined at day 0 (baseline), day 7, and day 21. The results showed that the hot water extract of both fermented and unfermented S. crispus tea reduced blood glucose in hyperglycaemic rats. S. crispus unfermented tea also reduced glucose level in normal rat. Both fermented and unfermented S. crispus tea also showed to improve lipid profile. Antioxidant and polyphenol content that present in the extracts might contribute to the antihyperglycemic and antilipidemic properties. Further study is needed to be carried out in pre-clinical and clinical environment to prove its efficacy in human.
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Affiliation(s)
- A B Mohd Fadzelly
- Department of Nutrition and Health Sciences, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
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. AR, . SE, . AMA, . PI, . TYYH, . MFAB. Anticarcinogenic Properties of Strobilanthes crispus Extracts and its Compounds in vitro. ACTA ACUST UNITED AC 2005. [DOI: 10.3923/ijcr.2006.47.49] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nevin KG, Vijayammal PL. Effect of Aerva lanata against hepatotoxicity of carbon tetrachloride in rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2005; 20:471-477. [PMID: 21783628 DOI: 10.1016/j.etap.2005.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2005] [Accepted: 05/23/2005] [Indexed: 05/31/2023]
Abstract
The partially purified petroleum ether extractable fraction of the whole plant Aerva lanata (PF) was evaluated for the protective effect against liver damage induced by carbon tetra chloride (CCl(4)) in Sprague Dawley rats. Rats were orally administered with PF (50 and 100mg/kg body weight) for 14 days before CCl(4) challenge and 100mg of PF alone for toxicity analysis without CCl(4) administration. The results showed that CCl(4) administration significantly damaged the liver as evident from histopathology and very high activity of serum and liver marker enzymes. It also reduced the antioxidant enzyme status of the animals. PF administration significantly reversed the histopathological changes and restored the elevated activities of liver marker enzymes and also enhanced the antioxidant enzyme activities. The extract also reduced hepatic lipid peroxidation and increased the serum total protein and albumin/globulin (A/G) ratio. Preliminary phytochemical analysis of PF showed the presence of alkaloids. These observations clearly indicate that PF contains antioxidant alkaloids capable of ameliorating the CCl(4)-induced hepatic injury by virtue of its antioxidant activity.
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Affiliation(s)
- K G Nevin
- Department of Biochemistry, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala 695 581, India
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Yang M, Yoshikawa M, Arashidani K, Kawamoto T. Effects of green tea on carcinogen-induced hepatic CYP1As in C57BL/6 mice. Eur J Cancer Prev 2004; 12:391-5. [PMID: 14512804 DOI: 10.1097/00008469-200310000-00008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Green tea (GT) drinking showed chemopreventive effects on various cancers. In addition, inhibition of CYP1A activity by green tea components--polyphenols--has been suggested as a chemoprevention against carcinogens that were bioactivated by CYP1As. Therefore, any changes in hepatic CYP1As may be considered as a biomarker for GT chemoprevention and clarify whether whole GT is chemopreventive for the population who are exposed to CYP1A specifically-bioactivated carcinogens. In this study, we investigated the changes in CYP1A levels by pre- and concurrent GT drinking against a CYP1A-inducing carcinogen, 3-methylcholanthrene (MC), in aryl hydrocarbon receptor responsive C57 BL/6 mice. We found that GT drinking itself induced hepatic CYP1As and enhanced MC-induced ethoxyresorufin-O-demethylase (EROD) activity (P<0.05). However, our studies of CYP1A monoclonal antibody and western blots revealed that the enhanced hepatic EROD activity by GT did not come from CYP1As. Therefore, our results suggest that GT may work to biotransform CYP1A inducing carcinogens into non-carcinogenic metabolites by modulation of other microsomal enzymes rather than CYP1As. In addition, the mechanism of GT chemoprevention may be different from that of GT components, such as polyphenols that reduce CYP1As activity.
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Affiliation(s)
- M Yang
- Department of Preventive Medicine/Cancer Research Institute, Seoul National University College of Medicine, 28 Yongon-Dong Chongno-Gu, 110-799 Seoul, Korea.
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