1
|
Luz Tibaldi-Bollati M, Nicotra V, Oksdath-Mansilla G, García ME. Expanding Diterpene Complexity and Diversity via Photoinduced Ring Distortions. Chempluschem 2024; 89:e202300537. [PMID: 38029375 DOI: 10.1002/cplu.202300537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Natural products and their semi-synthetic derivatives undoubtedly constitute an important source of therapeutic agents. Their importance lies in their own origin and evolution, since they have great chemical diversity, biochemical specificity, and pharmacological properties. Currently, there is a renewed interest in the development of methodologies capable of efficiently modifying the chemical structure of these bioactive platforms. In this work, the photoderivatization of the diterpene solidagenone was performed using a complexity-to-diversity-oriented approach. By exploring [2+2]-photocycloaddition, photoinduced-hydrogen abstraction, and photoxygenation reactions, a set of solidagenone derivatives was obtained, showing different ring fusions, side chain rearrangements, and modifications of the original furan ring's substitution pattern. The derivatives obtained were characterised by NMR methodologies. To evaluate the structural diversity of the labdane-derived compounds, their physicochemical properties, structural similarity, and chemical space were analysed. These results suggest that photochemical reactions are a useful tool for performing ring distortion transformations, generating derivatives of natural compounds with wide diversity, structural complexity, and with potential biological properties.
Collapse
Affiliation(s)
- María Luz Tibaldi-Bollati
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA, Córdoba, Argentina
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Viviana Nicotra
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA, Córdoba, Argentina
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Gabriela Oksdath-Mansilla
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA, Córdoba, Argentina
- Instituto de Investigaciones en Físico-Química de Córdoba (INFIQC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Manuela E García
- Dpto. de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA, Córdoba, Argentina
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| |
Collapse
|
2
|
Radušienė J, Karpavičienė B, Vilkickytė G, Marksa M, Raudonė L. Comparative Analysis of Root Phenolic Profiles and Antioxidant Activity of Five Native and Invasive Solidago L. Species. PLANTS (BASEL, SWITZERLAND) 2024; 13:132. [PMID: 38202440 PMCID: PMC10780316 DOI: 10.3390/plants13010132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/30/2023] [Accepted: 12/31/2023] [Indexed: 01/12/2024]
Abstract
The high environmental importance of invasive goldenrod has prompted research to find potential benefits that can be derived from these species. This study aimed to identify differences in root phenolic profiles among five Solidago species, thus providing valuable information on their potential applications and the botanical origin of the raw material. The roots of native S. virgaurea L., two alien species S. gigantea Aiton and S. canadensis L. and their hybrids S. ×niederederi Khek and S. ×snarskisii Gudž. & Žaln. were sampled from mixed-species stands in Lithuania. A complex of twelve phenolic acids and their derivatives was identified and quantified in methanol-water root extracts using the HPLC-PDA and LC/MS systems. The radical-scavenging capacities of the extracts were assessed by ABTS. The chemical content of the roots of S. virgaurea, S. gigantea and S. ×niederederi were statistically similar, while the roots of S. canadensis and S. ×snarskisii contained lower amounts of compounds than the other species. The PCA score-plot models of the phenolic profiles only partially confirmed the identification of S. ×niederederi and S. ×snarskisii as crosses between native and alien species. The findings from the phenolic profiles and the observed radical-scavenging activity of root extracts of Solidago species provide valuable insights into their potential applications in various fields.
Collapse
Affiliation(s)
- Jolita Radušienė
- Laboratory of Economic Botany, Nature Research Centre, Akademijos Str. 2, 08412 Vilnius, Lithuania;
| | - Birutė Karpavičienė
- Laboratory of Economic Botany, Nature Research Centre, Akademijos Str. 2, 08412 Vilnius, Lithuania;
| | - Gabrielė Vilkickytė
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania; (G.V.); (L.R.)
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Mindaugas Marksa
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Lina Raudonė
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania; (G.V.); (L.R.)
- Department of Pharmacognosy, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania
| |
Collapse
|
3
|
Woldeamanuel MM, Geda MK, Mohapatra S, Bastia TK, Rath P, Panda AK. Ethnobotanical study of endemic and non-endemic medicinal plants used by indigenous people in environs of Gullele botanical garden Addis Ababa, central Ethiopia: A major focus on Asteraceae family. Front Pharmacol 2022; 13:1020097. [PMID: 36506590 PMCID: PMC9727095 DOI: 10.3389/fphar.2022.1020097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/31/2022] [Indexed: 11/24/2022] Open
Abstract
Gullele Botanical Garden (GBG) in Addis Ababa, Ethiopia is a joint venture of Addis Ababa government and the university. The garden has been built mainly to conserve the endemic plants and to advance the research on the endemic and non-endemic plants collected from different part of Ethiopia. Many traditional healers from the environs of GBG and different subcities of Addis Ababa depend on the garden for their practice of traditional medicine but there is no systematic documentation of the traditional medicinal knowledge of these healers. The main objective of the present study is to comprehensively document the ethnobotanical and ethnomedicinal information from the traditional healers of different ethnic and cultural groups depending on GBG and to create a database of the endemic plants used by these healers. The ethnobotanical and ethnomedicinal data obtained from 60 traditional healers have been analyzed both qualitatively and quantitatively. A total of 81 medicinal plants belonging to 47 families have been identified. Majority of the plants used belonged to Asteraceae (12) family. The most frequently used plant form and plant parts are herbs and leaves. The major method adopted by the healers for preparation and administration of traditional medicine is crushing and topical, respectively. Skin and general diseases are the most important ailments treated by the healers. The three most cited plants used to treat diseases are Echinops kebericho Mesfin (60), Hagenia abyssinica (Bruce) J.F.Gmel (60) and Laggera tomentosa (A.Rich.) Sch.Bip. ex Oliv. & Hiern (58). The present study is the first systematic, qualitative, and quantitative ethnobotanical analysis and documentation done on the use of the medicinal plants from GBG for traditional medicine. In addition, our study reveals that E. kebericho is endemic and endangered plant and is highly used in traditional medicine. Therefore, GBG authorities should take steps for the propagation and restoration of this plant. Further it is suggested that the pharmacological properties of the roots and leaves of E. kebericho should be compared to find the possibility of use of leaves in place of roots for the preparation of traditional medicine which would help in conserving this endemic plant of Ethiopia.
Collapse
Affiliation(s)
- Melaku Masresha Woldeamanuel
- Environmental Science Laboratory School of Applied Sciences, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India,College of Natural and Computational Sciences, Dire Dawa University, Dire Dawa, Ethiopia
| | - Mohammed Kasso Geda
- College of Natural and Computational Sciences, Dire Dawa University, Dire Dawa, Ethiopia
| | - Shibani Mohapatra
- Environmental Science Laboratory School of Applied Sciences, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Tapan Kumar Bastia
- Environmental Science Laboratory School of Applied Sciences, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India
| | - Prasanta Rath
- Environmental Science Laboratory School of Applied Sciences, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India,*Correspondence: Prasanta Rath, ; Alok Kumar Panda,
| | - Alok Kumar Panda
- Environmental Science Laboratory School of Applied Sciences, Kalinga Institute of Industrial Technology, Deemed to be University, Bhubaneswar, India,*Correspondence: Prasanta Rath, ; Alok Kumar Panda,
| |
Collapse
|
4
|
Insecticidal Activity of Organic Extracts of Solidago graminifolia and Its Main Metabolites (Quercetin and Chlorogenic Acid) against Spodoptera frugiperda: An In Vitro and In Silico Approach. Molecules 2022; 27:molecules27103325. [PMID: 35630802 PMCID: PMC9147747 DOI: 10.3390/molecules27103325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 11/17/2022] Open
Abstract
Spodoptera frugiperda (S. frugiperda) remains a global primary pest of maize. Therefore, new options to combat this pest are necessary. In this study, the insecticidal activity of three crude foliar extracts (ethanol, dichloromethane, and hexane) and their main secondary metabolites (quercetin and chlorogenic acid) of the species Solidago graminifolia (S. graminifolia) by ingestion bioassays against S. frugiperda larvae was analyzed. Additionally, the extracts were phytochemically elucidated by ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) analysis. Finally, an in silico study of the potential interaction of quercetin on S. frugiperda acetylcholinesterase was performed. Organic extracts were obtained in the range from 5 to 33%. The ethanolic extract caused higher mortality (81%) with a half-maximal lethal concentration (LC50) of 0.496 mg/mL. Flavonoid secondary metabolites such as hyperoside, quercetin, isoquercetin, kaempferol, and avicularin and some phenolic acids such as chlorogenic acid, solidagoic acid, gallic acid, hexoside, and rosmarinic acid were identified. In particular, quercetin had an LC50 of 0.157 mg/mL, and chlorogenic acid did not have insecticidal activity but showed an antagonistic effect on quercetin. The molecular docking analysis of quercetin on the active site of S. frugiperda acetylcholinesterase showed a −5.4 kcal/mol binding energy value, lower than acetylcholine and chlorpyrifos (−4.45 and −4.46 kcal/mol, respectively). Additionally, the interactions profile showed that quercetin had π–π interactions with amino acids W198, Y235, and H553 on the active site.
Collapse
|
5
|
Taciane da Silva Bortoleti B, Detoni MB, Gonçalves MD, Tomiotto-Pellissier F, Silva TF, Contato VM, Jacob Rodrigues AC, Carloto AC, Nascimento de Matos RL, Fattori V, Arakawa NS, Verri WA, Costa IN, Conchon-Costa I, Miranda-Sapla MM, Wowk PF, Pavanelli WR. Solidagenone in vivo leishmanicidal activity acting in tissue repair response, and immunomodulatory capacity in Leishmania amazonensis. Chem Biol Interact 2022; 361:109969. [DOI: 10.1016/j.cbi.2022.109969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/13/2022] [Accepted: 04/29/2022] [Indexed: 11/16/2022]
|
6
|
Yu C, Zhang J, Zhang H, Chen Y, Wang C, Zhang L, Ding L, Wang T, Yang Z. Influence of Trans-anethole on the nutrient digestibility and intestinal barrier function in broilers. Poult Sci 2021; 100:101489. [PMID: 34695630 PMCID: PMC8555437 DOI: 10.1016/j.psj.2021.101489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/30/2021] [Accepted: 09/09/2021] [Indexed: 01/19/2023] Open
Abstract
This experiment was undertaken to investigate the effects of dietary trans-anethole (TA) at 5 levels (0, 200, 400, 600, and 800 mg/kg of diet) on the growth performance, apparent nutrient digestibility and intestinal barrier function in broilers. Three hundred twenty 1-day-old Arbor Acres broilers were randomly divided into the 5 dietary treatments with 8 replicates each for 42 d. Dietary TA supplementation increased (P < 0.05) average daily feed intake (ADFI), but had no effects (P > 0.05) on average daily gain (ADG), feed/gain (F/G), and body weight (BW) of broilers throughout the entire experimental period. The apparent metabolizable energy (AME) and nitrogen-corrected apparent metabolizable energy (AMEn), the apparent total tract digestibility of dry matter (DM), crude protein (CP), organic matter (OM), and gross energy (GE) showed a quadratic increase (P < 0.05) with the increasing TA concentration in the diet. The apparent ileal digestibility of Lys, Met, Leu, Thr, Ala, Tyr, and Pro were higher (P < 0.05) in birds fed TA diets compared with control group. Dietary supplementation of 400 mg/kg of TA increased (P < 0.05) mRNA levels of jejunal and ileal Na+/glucose co-transporter (SGLT1) on d 21 and d 42, oligopeptide transporter 1 (PepT1) on d 42, and ileal mRNA expressions of occludin (OCLN), claudin-1 (CLDN-1), and mucin 2 (MUC2), villus height (VH), crypt depth (CD), and VH:CD on d 21, as well as jejunal zonula-occludens-1 (ZO-1) and ileal mucin 2 on d 42. Linear or quadratic responses of the jejunal CD and villus VH:CD ratio occurred (P < 0.01) with increasing dietary TA concentration on d 42. The inclusion of 400 mg/kg TA decreased (P < 0.05) cecal Escherichia coli population on d 21 and d 42, but increased (P < 0.05) Bifidobacterium population on d 21 and ileal Bifidobacterium on d 42. In conclusion, 400 mg/kg of TA is the optimum concentration for increasing nutrient utilization and intestinal barrier function of broilers.
Collapse
Affiliation(s)
- Caiyun Yu
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Jingfei Zhang
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Hao Zhang
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Yanan Chen
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Chao Wang
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Lili Zhang
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Liren Ding
- College of Animal Sciences and Technology, National Experimental Teaching Demonstration Centre of Animal Science, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China
| | - Tian Wang
- College of Animal Sciences and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P. R. China.
| | - Zaibin Yang
- College of Animal Sciences and Technology, Shandong Agricultural University, Tai'an, Shandong, 271018, P. R. China
| |
Collapse
|
7
|
Vasconcelos JF, Santos IP, de Oliveira TB, Kelly AM, do Reis BPZC, Orge ID, Meira CS, Valverde SS, Soares MBP. The protective effect of solidagenone from Solidago chilensis Meyen in a mouse model of airway inflammation. Basic Clin Pharmacol Toxicol 2021; 130:44-55. [PMID: 34634189 DOI: 10.1111/bcpt.13672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/20/2021] [Accepted: 10/06/2021] [Indexed: 11/30/2022]
Abstract
Solidagenone is the main active constituent present in Solidago chilensis Meyen which is used in folk medicine to treat pain and inflammatory diseases. This study aimed to evaluate the anti-inflammatory activity of solidagenone in vitro and in a model of allergic airway inflammation. In vitro studies were performed in activated macrophages and lymphocytes. BALB/c mice were sensitized and challenged with ovalbumin and treated with solidagenone orally (30 or 90 mg/kg body weight) or dexamethasone, as a positive control in our in vivo analysis. Supernatant concentrations of nitrite, TNF and IL-1β, as well as gene expression of pro-inflammatory mediators in macrophages cultures, were reduced after solidagenone treatment, without affecting macrophages viability. Besides, solidagenone significantly decreased T cell proliferation and secretion of IFNγ and IL-2. Th2 cytokine concentrations and inflammatory cell counts, especially eosinophils, in bronchoalveolar lavage fluid were reduced in mice treated with solidagenone. Histopathological evaluation of lung tissue was performed, and morphometrical analyses demonstrated reduction of cellular infiltration and mucus hypersecretion. Altogether, solidagenone presented anti-inflammatory activity in vitro and in vivo in the OVA-induced airway inflammation model, suggesting its promising pharmacological use as an anti-inflammatory agent for allergic hypersensitivity.
Collapse
Affiliation(s)
| | | | - Temistocles Barroso de Oliveira
- Pharmaceutical Technology Institute - FarManguinhos, Natural Products Department, Oswaldo Cruz Foundation, FIOCRUZ, Rio de Janeiro, Brazil
| | - Andressa Maia Kelly
- Pharmaceutical Technology Institute - FarManguinhos, Natural Products Department, Oswaldo Cruz Foundation, FIOCRUZ, Rio de Janeiro, Brazil
| | | | - Iasmim Diniz Orge
- Institute of Innovation in Advanced Health Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador, Brazil
| | - Cássio Santana Meira
- Instituto Gonçalo Moniz, Oswaldo Cruz Foundation, FIOCRUZ, Salvador, Brazil.,Institute of Innovation in Advanced Health Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador, Brazil
| | - Simone Sacramento Valverde
- Pharmaceutical Technology Institute - FarManguinhos, Natural Products Department, Oswaldo Cruz Foundation, FIOCRUZ, Rio de Janeiro, Brazil
| | - Milena Botelho Pereira Soares
- Instituto Gonçalo Moniz, Oswaldo Cruz Foundation, FIOCRUZ, Salvador, Brazil.,Institute of Innovation in Advanced Health Systems (ISI SAS), University Center SENAI/CIMATEC, Salvador, Brazil
| |
Collapse
|
8
|
Valverde SS, Santos BCS, de Oliveira TB, Gonçalves GC, de Sousa OV. Solidagenone from Solidago chilensis Meyen inhibits skin inflammation in experimental models. Basic Clin Pharmacol Toxicol 2020; 128:91-102. [PMID: 32780565 DOI: 10.1111/bcpt.13479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/24/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022]
Abstract
Solidagenone (SOL) is a labdane-type diterpenoid found in Solidago chilensis, a plant traditionally used to treat skin diseases, kidney pain and ovarian inflammation. In this study, the topical anti-inflammatory activity of SOL was evaluated using in vivo and in silico assays. Croton oil-, arachidonic acid (AA)- and phenol-induced ear oedema mouse models were applied in the in vivo studies. Myeloperoxidase (MPO) and N-acetyl-β-D-glucosaminidase (NAG) activities and tumour necrosis factor alpha (TNF-α), interleukin-6 (IL-6) and nitric oxide (NO) levels were determined, as well as histopathological analyses were conducted. Interaction profiles between SOL and cyclooxygenase-1 (COX-1), cyclooxygenase-2 (COX-2), glucocorticoid receptor, estradiol-17-β-dehydrogenase and prostaglandin-E(2)-9-reductase were established using molecular docking. SOL significantly inhibited croton oil-, AA- and phenol-induced ear oedema (P < .001) at doses of 0.1, 0.5 and 1.0 mg/ear. The MPO and NAG activities and TNF-α, IL-6 and NO levels were decreased (P < .001). The histopathological data revealed that inflammatory parameters (oedema thickness, leucocyte infiltration and vasodilatation) were reduced by treatment with SOL at doses of 0.1, 0.5 and 1.0 mg/ear. The docking study showed that SOL interacts with COX-1 and prostaglandin-E(2)-9-reductase through hydrogen bonding, inhibiting these enzymes. These results indicate that SOL may be a promising compound for the treatment of cutaneous inflammatory disorders and has potential as a topical anti-inflammatory agent.
Collapse
Affiliation(s)
- Simone S Valverde
- Instituto de Tecnologia Instituto em Fármacos - FarManguinhos, Departamento de Produtos Naturais, Fundação Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, Brazil
| | - Bruna Celeida S Santos
- Laboratório de Química Biomedicinal e Farmacologia Aplicada, Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Temístocles B de Oliveira
- Instituto de Tecnologia Instituto em Fármacos - FarManguinhos, Departamento de Produtos Naturais, Fundação Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, Brazil
| | - Guilherme C Gonçalves
- Laboratório de Química Biomedicinal e Farmacologia Aplicada, Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Orlando V de Sousa
- Laboratório de Química Biomedicinal e Farmacologia Aplicada, Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| |
Collapse
|
9
|
Móricz ÁM, Jamshidi-Aidji M, Krüzselyi D, Darcsi A, Böszörményi A, Csontos P, Béni S, Ott PG, Morlock GE. Distinction and valorization of 30 root extracts of five goldenrod (Solidago) species. J Chromatogr A 2020; 1611:460602. [DOI: 10.1016/j.chroma.2019.460602] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/03/2019] [Accepted: 10/05/2019] [Indexed: 12/13/2022]
|
10
|
Abstract
Background:
Peptic ulcer is a deep gastrointestinal erosion disorder that involves
the entire mucosal thickness and can even penetrate the muscular mucosa. Nowadays, several
plants and compounds derived from it have been screened for their antiulcer activity. In
the last few years, there has been an exponential growth in the field of herbal medicine. This
field has gained popularity in both developing and developed countries because of their natural
origin and less side effects.
Objective:
This review aims to provide a comprehensive summary of currently available
knowledge of medicinal plants and phytoconstituents reported for their anti-ulcer properties.
Methods:
The worldwide accepted database like SCOPUS, PUBMED, SCIELO, NISCAIR,
ScienceDirect, Springerlink, Web of Science, Wiley, SciFinder and Google Scholar were
used to retrieve available published literature.
Results:
A comprehensive review of the present paper is an attempt to list the plants with
antiulcer activity. The review narrates the dire need to explore potential chemical moieties
that exert an antiulcer effect, from unexploited traditional plants. Furthermore, the present
study reveals the intense requirement to exploit the exact mechanism through which either
the plant extracts or their active constituents exhibit their antiulcer properties.
Conclusion:
This article is the compilation of the plants and its constituents reported for the
treatment of peptic ulcers. The Comprehensive data will surely attract the number of investigators
to initiate further research that might lead to the drugs for the treatment of ulcers. As
sufficient scientific data is not available on plants, most of the herbals cannot be recommended
for the treatment of diseases. This can be achieved by research on pure chemical
structures derived from plants or to prepare new lead compounds with proven beneficial
preclinical in vitro and in vivo effects. However, a lot remains to be done in further investigations
for the better status of medicinal plants.
Collapse
Affiliation(s)
- Minky Mukhija
- Ch. Devi Lal College of Pharmacy, Buria Road, Bhagwangarh, Jagadhri-135003, India
| | - Bhuwan Chandra Joshi
- School of Pharmaceutical Sciences, Sardar Bhagwan Singh Post Graduate Institute of Biomedical Sciences and Research, Balawala, Dehradun-248001, India
| |
Collapse
|
11
|
Solidago graminifolia L. Salisb. ( Asteraceae) as a Valuable Source of Bioactive Polyphenols: HPLC Profile, In Vitro Antioxidant and Antimicrobial Potential. Molecules 2019; 24:molecules24142666. [PMID: 31340530 PMCID: PMC6680997 DOI: 10.3390/molecules24142666] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/20/2019] [Accepted: 07/21/2019] [Indexed: 11/17/2022] Open
Abstract
Solidago species are often used in traditional medicine as anti-inflammatory, diuretic, wound-healing and antimicrobial agents. Still, the bioactive compounds and biological activities of some species have not been studied. The present work aimed to investigate the polyphenolic profile and the biological properties of Solidago graminifolia L. Salisb., a poorly explored medicinal plant. The hydroalcoholic extracts from aerial parts were evaluated for total phenolic content (TPC), total flavonoid content (TFC) and the polyphenolic compounds were investigated by HPLC-MS. The antioxidant potential in vitro was determined using DPPH and FRAP assays. Antibacterial and antifungal effects were evaluated by dilution assays and MIC, MBC and MFC were calculated. The results showed that Solidago graminifolia aerial parts contain an important amount of total phenolics (192.69 mg GAE/g) and flavonoids (151.41 mg RE/g), with chlorogenic acid and quercitrin as major constituents. The hydroalcoholic extracts showed promising antioxidant and antimicrobial potential, with potent antibacterial activity against Staphylococcus aureus and important antifungal effect against Candida albicans and C. parapsilosis. The obtained results indicated that the aerial parts of Solidago graminifolia could be used as novel resource of phytochemicals in herbal preparations with antioxidant and antimicrobial activities.
Collapse
|
12
|
Athayde AED, Richetti E, Wolff J, Lusa MG, Biavatti MW. “Arnicas” from Brazil: comparative analysis among ten species. REVISTA BRASILEIRA DE FARMACOGNOSIA 2019. [DOI: 10.1016/j.bjp.2019.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
SOUZA DOUGLASMDE, SÁ RAFAELAD, ARAÚJO EVANIL, RANDAU KARINAP. Anatomical, phytochemical and histochemical study of Solidago chilensis Meyen. ACTA ACUST UNITED AC 2018; 90:2107-2120. [DOI: 10.1590/0001-3765201720160280] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/04/2016] [Indexed: 11/22/2022]
|
14
|
Singh A, Nautiyal MC, Kunwar RM, Bussmann RW. Ethnomedicinal plants used by local inhabitants of Jakholi block, Rudraprayag district, western Himalaya, India. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2017; 13:49. [PMID: 28836997 PMCID: PMC5571566 DOI: 10.1186/s13002-017-0178-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 08/10/2017] [Indexed: 05/24/2023]
Abstract
BACKGROUND Ethnomedicinal knowledge of the Indian Himalayas is very interesting because of the wide range of medicinal plants used in traditional medical practice. However, there is a danger of knowledge being lost because the knowledge sharing is very limited and passed on orally. The present study is the first ethnomedicinal study in Jakholi area of Rudraprayag district of Northwestern India. The aim of present study was to identify traditional medicinal plants used by the inhabitants to treat different ailments and document the associated knowledge of these medicinal plants. METHODS An ethnomedicinal survey was carried out in 72 of 133 villages and alpine pastures of Jakholi block (800-4000 m asl). Door to door surveys and group discussions, applying semi-structured questionnaires were conducted with traditional healers and villagers in local language (Garhwali). Informant Consensus Factor (ICF) was computed to analyse collected ethnomedicinal data. RESULTS A total of 78 species (Gymnosperms 3 species, Monocotyledons 12 and 63 Dicotyledons) belonging to 73 genera in 46 families were identified to treat 14 different ailments categories. Most dominant family is Asteraceae (5 species). In disease treated categories, Diseases of the skin (DE) have the highest proportion (29.55%) followed by Gastro- intestinal disorder (GA) (25.89%). The most life form of plants used was herb (56%) followed by tree (23%) while root was the most frequently used part of the plants and the traditional preparation was mainly applied in the form of paste (37%). The highest ICF value (0.99) was found for hair ailments (HA) followed ophthalmologic complaints (OP) and mental afflictions (MA) (0.98). CONCLUSIONS The present study provides valuable information about traditional knowledge of medicinal plants of Jakholi Block in the Northwestern Himalaya, India. Local communities still possess large traditional knowledge of plants and their therapeutic uses and that the link of that traditional knowledge to modern research could be of importance for the isolation of new phytotherapeutic compounds leading to the development of novel therapeutic active agents. Some of the ethnomedicinal plants are facing high threats and are becoming rare, and conservation initiatives are needed to conserve them for sustainable management in the region.
Collapse
Affiliation(s)
- Ankit Singh
- High Altitude Plant Physiology Research Centre, H.N.B. Garhwal University, Post Box: 14, Srinagar Garhwal, Uttarakhand 246174 India
| | - Mohan C. Nautiyal
- High Altitude Plant Physiology Research Centre, H.N.B. Garhwal University, Post Box: 14, Srinagar Garhwal, Uttarakhand 246174 India
| | | | | |
Collapse
|
15
|
Quantification of Barbatusin and 3 β-Hydroxy-3-deoxybarbatusin in Plectranthus Species by HPLC-DAD. Int J Anal Chem 2017; 2017:2397131. [PMID: 28757871 PMCID: PMC5512052 DOI: 10.1155/2017/2397131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 06/04/2017] [Indexed: 11/25/2022] Open
Abstract
The concentration of diterpenes barbatusin (1) and 3β-hydroxy-3-deoxybarbatusin (2) in the extracts from leaves of Plectranthus grandis, P. barbatus, P. ornatus, and P. amboinicus was evaluated by HPLC-DAD analysis on a Luna C-18 column, using isocratic mixtures of water and acetonitrile as eluents. The regression equations were obtained with good linearity (r2 > 0.99) and limit of quantifications was higher than 0.1 µg/mL. The precision (lower than 3.5%, within day) and accuracy (higher than 81.7% and lower than 107.6%) of the methods were adequate. Barbatusin (1) was detected in P. grandis (15.432 ± 2.28 mg/g) and P. barbatus (5.198 ± 3.45 mg/g) extracts, while compound 2 was detected in P. grandis (4.068 ± 3.34 mg/g), P. barbatus (0.654 ± 5.86 mg/g), P. amboinicus (0.160 ± 7.25 mg/g), and P. ornatus (0.763 ± 5.10 mg/g). The evaluated validation parameters were satisfactorily achieved, and the developed methodology represents a suitable tool for application in the quantification of barbatusin (1) and 3β-hydroxy-3-deoxybarbatusin (2) in Plectranthus species.
Collapse
|
16
|
Kayani S, Ahmad M, Sultana S, Khan Shinwari Z, Zafar M, Yaseen G, Hussain M, Bibi T. Ethnobotany of medicinal plants among the communities of Alpine and Sub-alpine regions of Pakistan. JOURNAL OF ETHNOPHARMACOLOGY 2015; 164:186-202. [PMID: 25680839 DOI: 10.1016/j.jep.2015.02.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/02/2015] [Indexed: 05/18/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE To best of our knowledge it is first quantitative ethno-botanical study from Alpine and Sub-alpine, Western Himalaya of Pakistan. The study aims to report, compare the uses and highlight the ethno-botanical significance of medicinal plants for treatment of various diseases. METHODS A total of 290 (278 males and 12 females) informants including 14 Local Traditional Healers (LTHs) were interviewed. Information was collected using semi-structured interviews, analyzed and compared by quantitative ethno-botanical indices such as Informant Consensus Factor (ICF), Relative frequency of citation (RFC), use value (UV), Fidelity Level (FL) and Jaccard index (JI). RESULTS A total of 125 plant species (Gymnosperms 7 species, Monocotyledons 2 and 116 Di-cotyledons) belonging to 41 families are collected, identified and ethno-botanically assessed. The most dominant family is Ranunculaceae (20 species) followed by Rosaceae (14 species). In diseases treated, gastrointestinal tract (GIT) diseases have highest proportion (27.5%) followed by respiratory diseases (20%) in the mountain communities. The most dominant life form of plants used is herbs (78%) followed by shrubs (19%) while the most commonly used plant parts are leaves (44 reports) followed by underground part, the roots (37 reports). The highest ICF (0.68) is found for ear, nose and eye disease category followed by respiratory disorders (0.46). There are 15 medicinal plants having 100% FL. Use value (UV) and Relative frequency of citation (RFC) range from 0.03 to 0.53 and 0.04 to 0.23 respectively. In comparison, maximum similarity index is found in the studies with JI 19.52 followed by 17.39. Similarity percentage of plant uses range from 1.69% to 19.52% while dissimilarity percentage varies from 0% to 20%. CONCLUSIONS The Alpine and Sub-alpine regions of Pakistan are rich in medicinal plants and still need more research exploration. On the other hand, ethno-botanical knowledge in study areas is decreasing day by day due to high emigration rates resulting from after effects of wars during the last few decades. Historically developed ethno-botanical heritage should be preserved and promoted on global level for analyzing phytochemical, pharmaceutical and other biological activities for future drug discovery.
Collapse
Affiliation(s)
- Sadaf Kayani
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Mushtaq Ahmad
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Shazia Sultana
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Zabta Khan Shinwari
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammed Zafar
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Ghulam Yaseen
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | | | - Tahira Bibi
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; Department of Plant Sciences, Sardar Bahadur Khan Women׳s University, Quetta, Pakistan
| |
Collapse
|
17
|
Roman Junior WA, Piato AL, Conterato GMM, Wildner SM, Marcon M, Mocelin R, Emanuelli MP, Emanuelli T, Nepel A, Barison A, Santos CAM. Hypolipidemic effects of Solidago chilensis hydroalcoholic extract and its major isolated constituent quercetrin in cholesterol-fed rats. PHARMACEUTICAL BIOLOGY 2015; 53:1488-1495. [PMID: 25898223 DOI: 10.3109/13880209.2014.989622] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Despite several studies on the effects of Solidago chilensis Meyen (Asteraceae), the phytochemical and hypolipidemic properties remain underappreciated. OBJECTIVE This study evaluates the hypolipidemic and antioxidant effects of hydroalcoholic extract (HE) and quercetrin from S. chilensis aerial parts in cholesterol-fed rats. MATERIALS AND METHODS The HE was analyzed by high-performance liquid chromatography, followed by quercetrin isolation. Hypercholesterolemic rats (1% cholesterol and 0.5% cholic acid for 15 d) were treated with HE (150, 300, and 600 mg/kg p.o.; n = 6), simvastatin (4 mg/kg p.o.; n = 6), or quercetrin (10 mg/kg p.o.; n = 6) once a day for 30 d. During this period, a high-cholesterol diet was maintained until the 30th day of treatment. RESULTS Rats treated with HE (150, 300, and 600 mg/kg) and quercetrin showed decreased serum levels of total cholesterol (-19.9, -27.5, -31.0, and -39.4%), lipoprotein-cholesterol (-36.0, -37.5, -43.3, and -59.4%), and triacylglycerides (-15.6, -23.5, -29.8, and -27.2%) when compared with the control group similar to simvastatin. Moreover, treatment with HE and quercetrin decreased hepatic 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity (35.1% on average) and increased fecal cholesterol levels (38.2% on average). DISCUSSION AND CONCLUSIONS Our results suggest that hypolipidemic effects of HE are associated with it modulating the activity of HMG-CoA reductase and its interference in the reabsorption and/or excretion of intestinal lipids. Solidago chilensis and its main constituent, quercetrin, may thus be effective as cholesterol-lowering agents and in preventing atherosclerosis.
Collapse
Affiliation(s)
- Walter A Roman Junior
- Laboratório de Farmacognosia, Departamento de Farmácia, Universidade Federal do Paraná , Curitiba, PR , Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
A Clinical Trial with Brazilian Arnica (Solidago chilensisMeyen) Glycolic Extract in the Treatment of Tendonitis of Flexor and Extensor Tendons of Wrist and Hand. Phytother Res 2015; 29:864-9. [DOI: 10.1002/ptr.5323] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 02/08/2015] [Accepted: 02/16/2015] [Indexed: 12/15/2022]
|
19
|
Khan MF, Kumar P, Pandey J, Srivastava AK, Tamrakar AK, Maurya R. Synthesis of novel imbricatolic acid analogues via insertion of N-substituted piperazine at C-15/C-19 positions, displaying glucose uptake stimulation in L6 skeletal muscle cells. Bioorg Med Chem Lett 2012; 22:4636-9. [DOI: 10.1016/j.bmcl.2012.05.097] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 05/25/2012] [Indexed: 12/18/2022]
|
20
|
Choi WS, Jang DY, Nam SW, Park BS, Lee HS, Lee SE. Antiulcerogenic activity of scoparone on HCl/ethanol-induced gastritis in rats. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s13765-012-1023-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
21
|
Mercandeli AA, Bessa GP, Ronchi SN, Segato TPS, Silva AGD. Evidence for the Safe Use of the Extract from the Brazilian Arnica, <i>Solidago chilensis</i> Meyen, in Primary Health Care. Chin Med 2012. [DOI: 10.4236/cm.2012.31002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
22
|
Pertino MW, Theoduloz C, Palenzuela JA, del Mar Afonso M, Yesilada E, Monsalve F, González P, Droguett D, Schmeda-Hirschmann G. Synthesis and pharmacological activity of diterpenylnaphthoquinone derivatives. Molecules 2011; 16:8614-28. [PMID: 21996716 PMCID: PMC6264310 DOI: 10.3390/molecules16108614] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 09/29/2011] [Accepted: 09/30/2011] [Indexed: 11/16/2022] Open
Abstract
New diterpenylquinones, combining a diterpene diacid and a naphthoquinone, were prepared from junicedric acid and lapachol. The new derivatives were assessed as gastroprotective agents by the HCl-EtOH-induced gastric lesions model in mice as well as for basal cytotoxicity on the following human cell lines: Normal lung fibroblasts (MRC-5), gastric epithelial adenocarcinoma (AGS), and hepatocellular carcinoma (Hep G2). Several of the new compounds were significantly active as antiulcer agents and showed selective cytotoxicity against AGS cells.
Collapse
Affiliation(s)
- Mariano Walter Pertino
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile
| | - Cristina Theoduloz
- Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile
| | - Jose Antonio Palenzuela
- Instituto Universitario de Bio-Orgánica Antonio Gonzalez G., Universidad de La Laguna, Tenerife 38206, Spain
| | - Maria del Mar Afonso
- Instituto Universitario de Bio-Orgánica Antonio Gonzalez G., Universidad de La Laguna, Tenerife 38206, Spain
| | - Erdem Yesilada
- Faculty of Pharmacy, Yeditepe University, Istanbul 34755, Turkey
| | - Francisco Monsalve
- Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile
| | - Paulo González
- Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile
| | - Daniel Droguett
- Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile
| | - Guillermo Schmeda-Hirschmann
- Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile
- Author to whom correspondence should be addressed; ; Tel.: +56-71-200288; Fax: + 56-71-201573
| |
Collapse
|
23
|
Synthesis, gastroprotective effect and cytotoxicity of new amino acid diterpene monoamides and diamides. Molecules 2010; 15:7378-94. [PMID: 20966879 PMCID: PMC6259277 DOI: 10.3390/molecules15107378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 10/05/2010] [Accepted: 10/14/2010] [Indexed: 12/17/2022] Open
Abstract
Following our studies on the gastroprotective effect and cytotoxicity of terpene derivatives, new amides were prepared from the diterpene 8(17)-labden-15,19-dioic acid (junicedric acid) and its 8(9)-en isomer with C-protected amino acids (amino acid esters). The new compounds were evaluated for their gastroprotective effect in the ethanol/HCl-induced gastric lesions model in mice, as well as for cytotoxicity using the following human cell lines: normal lung fibroblasts (MRC-5), gastric adenocarcinoma cells (AGS) and liver hepatocellular carcinoma (Hep G2). A dose-response experiment showed that at 25 mg/kg the C-15 leucyl and C-15,19-dileucylester amides of junicedric acid reduced gastric lesions by about 65.6 and 49.6%, respectively, with an effect comparable to lansoprazole at 20 mg/kg (79.3% lesion reduction). The comparison of the gastroprotective effect of 18 new amino acid ester amides was carried out at a single oral dose of 25 mg/kg. Several compounds presented a strong gastroprotective effect, reducing gastric lesions in the 70.9-87.8% range. The diprolyl derivative of junicedric acid, the most active product of this study (87.8% lesion reduction at 25 mg/kg) presented a cytotoxicity value comparable with that of the reference compound lansoprazole. The structure-activity relationships are discussed.
Collapse
|
24
|
Vlad P, Gorincioi E, Aricu A, Barba A, Manzocchi A, Santaniello E. Asymmetric dihydroxylation of drim-7-en-11-ol: synthesis of diastereomerically pure driman-7α,8α,11-triol and its elaboration into novel chlorinated norlabdanic compounds. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.06.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Areche C, Rodríguez JA, Razmilic I, Yáñez T, Theoduloz C, Schmeda-Hirschmann G. Gastroprotective and cytotoxic effect of semisynthetic ferruginol derivatives. J Pharm Pharmacol 2010; 59:289-300. [PMID: 17270082 DOI: 10.1211/jpp.59.2.0015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
The gastroprotective abietane diterpene ferruginol has been shown to present high cytotoxicity. In order to obtain active compounds with less cytotoxicity, 18 semisynthetic ferruginol derivatives and totarol were assessed for their gastroprotective effects in the HCl/ethanol-induced gastric lesion model in mice, as well as for cytotoxicity in human gastric epithelial cells (AGS) and human lung fibroblasts (MRC-5). At 20 mg kg−1, the greatest gastroprotective effects were provided by abieta-8,11,13-triene (1), abieta-8,11,13-trien-12-yl-2-chloropropanoate (8), abieta-8,11,13-trien-12-yl propenoate (9), 12-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-abieta-8,11,13-triene (17) and 12-(β-D-galactopyranosyloxy)-abieta-8,11,13-triene (18), all of which were as active as the reference drug lansoprazole at 20 mg kg−1, reducing gastric lesions by 69, 76, 67, 72 and 61%, respectively. No relation was observed between lipophilicity and the gastroprotective effect. Compounds that showed the greatest cytotoxicity towards AGS cells were ferruginol (2), the corresponding formate (5), acetate (6), propionate (7), 8, 9, 12-(β-D-glucopyranosyloxy)-abieta-8,11,13-triene (16), 18 and totarol (20) (IC50 18–44 μM). Ferruginol and compounds 5–9, 16, 18 and 20 were the most toxic compounds against fibroblasts (IC50 19–56 μM), with a correlation to AGS cells. The derivative 19 was much more active against AGS cells than towards fibroblasts. The best activity/cytotoxicity ratio was found for compound 17, with a lesion index comparable with lansoprazole at 20 mg kg−1 and cytotoxicity >1000 μM towards MRC-5 and AGS cells, respectively. In conclusion, some derivatives showed a better gastroprotective effect/cytotoxicity ratio than the parent compound ferruginol. A total of 13 new compounds are reported here for the first time.
Collapse
Affiliation(s)
- Carlos Areche
- Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile
| | | | | | | | | | | |
Collapse
|
26
|
Rodríguez JA, Theoduloz C, Sánchez M, Yáñez T, Razmilic I, Schmeda-Hirschmann G. Gastroprotective activity of a new semi-synthetic solidagenone derivative in mice. J Pharm Pharmacol 2010; 57:265-71. [PMID: 15720793 DOI: 10.1211/0022357055461] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
The gastroprotective activity of the new semi-synthetic solidagenone derivative 15,16-epoxy-8(9),13(16),14-labdatrien-7β-methoxy-6β-ol (ELMO) has been assessed on the model of HCl/EtOH-induced gastric lesions in mice. Human gastric epithelial cells (AGS) and fibroblasts (MRC-5) were used to determine its mode of action. The effect of ELMO on the prostaglandin E2 content, cellular reduced glutathione (GSH) and protection against damage induced by sodium taurocholate was assessed against AGS cells. The effect of ELMO on the growth of AGS and fibroblast cultures was evaluated. The superoxide anion scavenging capacity of the compound was studied also. The cytotoxicity of ELMO, expressed as cell viability, was assessed using two independent endpoints: neutral red uptake (NRU) and the reduction of 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) for MRC-5 fibroblasts and NRU for AGS cells. A single oral dose of ELMO (10 and 20 mg kg−1) inhibited the appearance of gastric lesions in mice displaying similar values to lansoprazole at 20 mg kg−1. At 40 μm ELMO increased the prostaglandin E2 content but not GSH in AGS cells. The compound showed no effect on sodium taurocholate-induced damage and was devoid of superoxide anion scavenging activity. Concentrations of 0.5, 1, 2 and 4 μm stimulated fibroblast but not AGS cell proliferation. The compound showed weak cytotoxicity with values (IC50) of 411 (NRU) and 418 μm (MTT) for fibroblasts and 261 μm (NRU) for AGS cells. The results support further pharmacological study of this compound as a potential new anti-ulcerogenic drug.
Collapse
Affiliation(s)
- Jaime A Rodríguez
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile.
| | | | | | | | | | | |
Collapse
|
27
|
Rodrigues PDA, de Morais SM, de Souza CM, Silva ARA, de Andrade GM, Silva MGV, Albuquerque RL, Rao VS, Santos FA. Gastroprotective effect of barbatusin and 3-beta-hydroxy-3-deoxibarbatusin, quinonoid diterpenes isolated from Plectranthus grandis, in ethanol-induced gastric lesions in mice. JOURNAL OF ETHNOPHARMACOLOGY 2010; 127:725-730. [PMID: 20025953 DOI: 10.1016/j.jep.2009.11.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 11/25/2009] [Accepted: 11/30/2009] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Validate the popular use of Plectranthus grandis in gastric disorders through the active components. AIMS Isolation of barbatusin (BB) and 3beta-hydroxy-3-deoxibarbatusin (BBOH), diterpenes from Plectranthus grandis, and evaluation of their gastroprotective effect and possible mechanisms of action. MATERIALS AND METHODS Isolation and chemical characterization of diterpenes from Plectranthus grandis by chromatographic and spectroscopic methods and evaluation of gastroprotective action of the diterpenes through ethanol-induced gastric injury in mice model. It was evaluated the effect of capsazepine, indomethacin and the role of nitric oxide and K(ATP-) channels on the gastroprotective effect of BBOH and BB. Additionally it was measured the concentrations of gastric mucus, non-proteic-sulfhydryl groups and total thiobarbituric acid-reactive substances. RESULTS Orally administered BBOH and BB at doses of 5 and 10mg/kg, markedly reduced the gastric lesions by 59 and 96%, and 32 and 76%, respectively, with superior results as compared to N-acetylcysteine (150 mg/kg, i.p.), reference compound that caused 85% lesion suppression. Although BBOH presented a higher gastroprotection than BB they act by similar mechanisms in relation to N-acetylcysteine, and prevent the depletion of gastric mucus, gastric mucosal non-proteic-sulfhydryl groups as well as the increase in thiobarbituric acid-reactive species. Moreover, the gastroprotective effect of BB was effectively blocked in mice pretreated with TRPV1 antagonist capsazepine, by the non-selective cyclooxygenase inhibitor indomethacin, or by the nitric oxide synthase inhibitor L-NAME but not by K(+)(ATP) channel inhibitor glibenclamide. In contrast, the gastroprotective effect of BBOH was blocked only by indomethacin and glibenclamide pretreatments. CONCLUSION The protective role for BBOH and BB affording gastroprotection against gastric damage induced by ethanol indicates that these compounds contribute for the activity of Plectranthus species. The different modes of action are probably related to differences in their chemical structure.
Collapse
Affiliation(s)
- Patrícia de Araújo Rodrigues
- State University of Ceará, Post-Graduate Programme of Veterinary Sciences, Veterinary Faculty, Fortaleza, CE, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
da Silva AG, de Sousa CPG, Koehler J, Fontana J, Christo AG, Guedes-Bruni RR. Evaluation of an extract of Brazilian arnica (Solidago chilensis
Meyen, asteraceae) in treating lumbago. Phytother Res 2009; 24:283-7. [DOI: 10.1002/ptr.2934] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
29
|
Russo A, Garbarino J. Solidago chilensis Meyen et Kageneckia oblonga Ruiz & Pav.: petite revue de leur profil antioxydant. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s10298-008-0345-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
30
|
Bradette-Hébert ME, Legault J, Lavoie S, Pichette A. A New Labdane Diterpene from the Flowers of Solidago canadensis. Chem Pharm Bull (Tokyo) 2008; 56:82-4. [DOI: 10.1248/cpb.56.82] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Jean Legault
- LASEVE, Département des Sciences Fondamentales, Université du Québec à Chicoutimi
| | - Serge Lavoie
- LASEVE, Département des Sciences Fondamentales, Université du Québec à Chicoutimi
| | - André Pichette
- LASEVE, Département des Sciences Fondamentales, Université du Québec à Chicoutimi
| |
Collapse
|
31
|
Goulart S, Moritz MIG, Lang KL, Liz R, Schenkel EP, Fröde TS. Anti-inflammatory evaluation of Solidago chilensis Meyen in a murine model of pleurisy. JOURNAL OF ETHNOPHARMACOLOGY 2007; 113:346-53. [PMID: 17686594 DOI: 10.1016/j.jep.2007.07.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Accepted: 07/01/2007] [Indexed: 05/16/2023]
Abstract
UNLABELLED The aim of this study was to investigate the anti-inflammatory effects and the mechanism of action of the aqueous extracts obtained from rhizomes, leaves and inflorescences of Solidago chilensis in the mouse model of pleurisy. The extracts were prepared by infusion and were lyophilized. RESULTS The aqueous extracts of rhizomes, leaves or inflorescences inhibited leukocytes, neutrophils and exudation (P<0.05) in the inflammation induced by carrageenan. The rhizomes aqueous extract, butanolic and aqueous residual fractions inhibited leukocytes, neutrophils, myeloperoxidase, adenosine-deaminase, and tumor necrosis factor alpha levels in the inflammation induced by carrageenan (P<0.05). The rhizome aqueous extract and butanolic fraction also inhibited exudation, nitric oxide, and interleukin-1 beta levels (P<0.05). The rhizomes aqueous extract and its two derived fractions reduced leukocytes and mononuclears in the pleurisy induced by bradykinin, histamine, or substance P (P<0.05) and neutrophils in the pleurisy induced by histamine or substance P (P<0.05). Only aqueous residual fraction inhibited neutrophils induced by bradykinin (P<0.05). CONCLUSION Solidago chilensis aqueous extracts from leaves, inflorescences and rhizomes demonstrated an important anti-inflammatory effect, inhibiting cells in the inflammation caused by carrageenan. In addition, the rhizomes aqueous extract and its derived fractions also decreased pro-inflammatory mediators release into the site of the inflammatory process. The rhizomes aqueous extract and the butanolic fraction showed more evident anti-inflammatory actions.
Collapse
Affiliation(s)
- Stella Goulart
- Department of Clinical Analysis, Centre of Health Sciences, Federal University of Santa Catarina, Campus Universitário-Trindade, 88040-970 Florianópolis, SC, Brazil
| | | | | | | | | | | |
Collapse
|
32
|
Sánchez M, Theoduloz C, Schmeda-Hirschmann G, Razmilic I, Yáñez T, Rodríguez JA. Gastroprotective and ulcer-healing activity of oleanolic acid derivatives: In vitro–in vivo relationships. Life Sci 2006; 79:1349-56. [PMID: 16712876 DOI: 10.1016/j.lfs.2006.03.044] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2006] [Revised: 03/20/2006] [Accepted: 03/31/2006] [Indexed: 11/18/2022]
Abstract
The triterpene oleanolic acid 1 and its semisynthetic derivatives 2-7 were assessed for gastroprotective and ulcer-healing effect using human epithelial gastric cells (AGS) and human lung fibroblasts (MRC-5). The ability of the compounds to protect the AGS cells against the damage induced by sodium taurocholate (NaT), to stimulate the cellular reduced glutathione (GSH) and prostaglandin E(2) content, to enhance AGS and MRC-5 cell proliferation and to scavenge superoxide anion in vitro was studied. The cytotoxicity of the compounds was assessed towards MRC-5 and AGS cells. In addition, the gastroprotective activity of the compounds was assessed in vivo using the HCl/EtOH-induced ulcer model in mice. All the assayed compounds displayed a significant reduction of AGS cells damage after incubation with NaT. None of the studied compounds was active as a superoxide anion scavenger nor stimulated the GSH content in AGS cell cultures. Compounds 1, 2, 4 and 6 were able to increase the prostaglandin content in AGS cell cultures. Concerning the proliferation assays, a significant stimulating effect was observed for compounds 3 and 7 on AGS cells and for 1 and 7 on MRC-5 fibroblasts. Regarding cytotoxicity, derivatives 2, 4, 6 and 7 were less toxic than the parent compound oleanolic acid. Our results strongly support the predictive capacity of the in vitro assessment of gastroprotective activity allowing the reduction of experimental animals.
Collapse
Affiliation(s)
- Marianela Sánchez
- Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile
| | | | | | | | | | | |
Collapse
|
33
|
Rodríguez JA, Theoduloz C, Yáñez T, Becerra J, Schmeda-Hirschmann G. Gastroprotective and ulcer healing effect of ferruginol in mice and rats: assessment of its mechanism of action using in vitro models. Life Sci 2005; 78:2503-9. [PMID: 16309708 DOI: 10.1016/j.lfs.2005.10.018] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2005] [Accepted: 10/04/2005] [Indexed: 12/13/2022]
Abstract
The gastroprotective activity of the diterpene ferruginol isolated from Prumnopitys andina wood and bark was determined on HCl/EtOH-induced gastric lesions in mice. The effect of the compound on the healing of subacute gastric lesions in rats was also studied. The mode of action of the diterpene was assessed using human gastric epithelial cells (AGS) and MRC-5 fibroblasts. The effect of ferruginol on the prostaglandin E2 content, protection against sodium taurocholate induced-damage and reduced glutathione content was evaluated on AGS cells as well as on the growth of AGS and fibroblast cultures. The free radical scavenging effect of ferruginol was assessed by the 1,1-diphenyl-2-picryl-hydrazil radical and superoxide anion assays. The effect of ferruginol on human erythrocyte membrane lipoperoxidation was determined. The cytotoxicity of the compound was assessed by means of the neutral red uptake. At 25 mg/kg, ferruginol inhibited the appearance of gastric lesions by 60% showing similar effects than lansoprazole at 20 mg/kg. Additionally, the compound displayed a significant ulcer healing activity in rats at 25 and 50 mg/kg with curative ratios of 36.0% and 92.5%, respectively, while the reference compound ranitidine at 50 mg/kg showed a curative ratio of 79.6%. At 6 and 12 microM, ferruginol increased significantly the prostaglandin E2 content. A strong inhibition of lipoperoxidation was found (IC50: 1.4 microM), but no effect was observed on the sodium taurocholate induced-damage or reduced glutathione content. Ferruginol stimulated cell proliferation at 1-2 microM in AGS cells and at 4-8 microM in fibroblasts, with cytotoxicities (IC50) of 24 and 26 microM, respectively. Our results support that ferruginol acts as gastroprotective increasing the PGs content, protecting the cells against lipid peroxidation and improving the gastric ulcer healing by a stimulating effect on the cell proliferation. These findings encourage further pharmacological studies of ferruginol as a potential new anti-ulcerogenic drug.
Collapse
Affiliation(s)
- Jaime A Rodríguez
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile.
| | | | | | | | | |
Collapse
|
34
|
Schmeda-Hirschmann G, Astudillo L, Rodríguez J, Theoduloz C, Yáñez T. Gastroprotective effect of the Mapuche crude drug Araucaria araucana resin and its main constituents. JOURNAL OF ETHNOPHARMACOLOGY 2005; 101:271-6. [PMID: 15985351 DOI: 10.1016/j.jep.2005.04.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2004] [Revised: 03/18/2005] [Accepted: 04/30/2005] [Indexed: 05/03/2023]
Abstract
The resin from the tree Araucaria araucana (Araucariaceae) has been used since pre-columbian times by the Mapuche amerindians to treat ulcers. The gastroprotective effect of the resin was assessed in the ethanol-HCl-induced gastric ulcer in mice showing a dose-dependent gastroprotective activity at 100, 200 and 300 mg/kg per os. The main three diterpene constituents of the resin, namely imbricatolic acid, 15-hydroxyimbricatolal and 15-acetoxyimbricatolic acid were isolated and evaluated for gastroprotective effect at doses of 50, 100 and 200 mg/kg. A dose-related gastroprotective effect with highly significant activity (P<0.01) was observed at doses up to 200 mg/kg. At 100 mg/kg, the highest gastroprotective activity was provided by 15-hydroxyimbricatolal and 15-acetoxyimbricatolic acid, all of them being as active as the reference drug lansoprazole at 20 mg/kg. The cytotoxicity of the main diterpenes as well as lansoprazole was studied towards human lung fibroblasts (MRC-5) and determined by the MTT reduction assay. A concentration-dependent cell viability inhibition was found with IC50 values ranging from 125 up to 290 microM. Our results support the traditional use of the Araucaria araucana resin by the Mapuche culture.
Collapse
Affiliation(s)
- Guillermo Schmeda-Hirschmann
- Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca, Chile.
| | | | | | | | | |
Collapse
|
35
|
Freire RS, Morais SM, Catunda-Junior FEA, Pinheiro DCSN. Synthesis and antioxidant, anti-inflammatory and gastroprotector activities of anethole and related compounds. Bioorg Med Chem 2005; 13:4353-8. [PMID: 15890516 DOI: 10.1016/j.bmc.2005.03.058] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2004] [Accepted: 03/31/2005] [Indexed: 12/22/2022]
Abstract
Some derivatives of trans-anethole [1-methoxy-4-(1-propenyl)-benzene] (1) were synthesized, by introducing hydroxyl groups in the double bond of the propenyl moiety. Two types of reactions were performed: (i) oxymercuration/demercuration that formed two products, the mono-hydroxyl derivative, 1-hydroxy-1-(4-methoxyphenyl)-propane (2) and in lesser extent the dihydroxyl derivative, 1,2-dihydroxy-1-(4-methoxyphenyl)-propane (3) and (ii) epoxidation with m-chloroperbenzoic acid that also led to the formation of two products, the dihydroxyl derivative (3) and the correspondent m-chloro-benzoic acid mono-ester, 1-hydroxy-1(4-methoxyphenyl)-2-m-chlorobenzoyl-propane (4). The structures of these compounds were confirmed mainly by mass, IR, 1H and 13C NMR spectral data. The activity of anethole and hydroxylated derivatives was evaluated using antioxidant, anti-inflammatory and gastroprotector tests. Compounds (2) and (3) were more active antioxidant agents than (1) and (4). In the anti-inflammatory assay, anethole showed lower activity than hydroxylated derivatives. Anethole and in lesser extent its derivatives 2 and 4 showed significant gastroprotector activity. All tested compounds do not alter significantly the total number of white blood cells.
Collapse
Affiliation(s)
- Rosemayre S Freire
- Natural Product Chemistry Laboratory, Department of Chemistry, University of Ceará State, Av. Paranjana 1700, Campus do Itaperi, CEP 60740-000 Fortaleza, Ceará, Brazil
| | | | | | | |
Collapse
|
36
|
Rodríguez JA, Theoduloz C, Sánchez M, Razmilic I, Schmeda-Hirschmann G. Gastroprotective and ulcer-healing effect of new solidagenone derivatives in human cell cultures. Life Sci 2005; 77:2193-205. [PMID: 15916778 DOI: 10.1016/j.lfs.2005.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Accepted: 04/25/2005] [Indexed: 11/21/2022]
Abstract
The labdane diterpene solidagenone 1 and its semisynthetic and biotransformation derivatives 2-10 were assessed for gastroprotective and ulcer-healing effect using human epithelial gastric cells (AGS) and human lung fibroblasts (MRC-5). The ability of the compounds to protect the AGS cells against the damage induced by sodium taurocholate (NaT), to stimulate the cellular reduced glutathione (GSH), prostaglandin E(2) content, enhance AGS and MRC-5 cell proliferation and to scavenge superoxide anion in vitro was studied. The cytotoxicity of the compounds was assessed towards MRC-5 fibroblasts and AGS cells. A significant reduction of cell damage after NaT incubation was observed when the AGS cells were pretreated with compounds 2 and 6. Treatment with compounds 4-6, 8 and 9 significantly stimulated the GSH content in AGS cell cultures. None of the studied compounds was active as a superoxide anion scavenger. In AGS cells treated with compounds 1-10, only compound 5 was able to increase prostaglandin content. Concerning the proliferation assays, a significant stimulating effect was observed for compounds 2, 8, 9 on AGS cells and for 5, 7-9 on MRC-5 fibroblasts. Regarding cytotoxicity, solidagenone showed higher toxicity while compounds 4 and 7 were the less toxic. Our results showed that most of the studied compounds act in vitro as gastroprotectors increasing the cellular GSH content. Additionally, some derivatives exhibited in vitro ulcer-healing effect stimulating the cell proliferation.
Collapse
Affiliation(s)
- Jaime A Rodríguez
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca, Chile.
| | | | | | | | | |
Collapse
|
37
|
Schmeda-Hirschmann G, Yesilada E. Traditional medicine and gastroprotective crude drugs. JOURNAL OF ETHNOPHARMACOLOGY 2005; 100:61-6. [PMID: 15993015 DOI: 10.1016/j.jep.2005.06.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/01/2005] [Indexed: 05/03/2023]
Abstract
A frequent question when dealing with the search for gastroprotective compounds from natural sources is how far or close are both the plant preparations and extract amounts from the doses recommended in traditional medicine and what should be considered realistic levels for experimental studies. The administration way is oral and therefore extracts and products should be administered by gavage when looking for validation of ethnopharmacological uses. Suggestions of doses for both crude extracts and pure compounds are presented and discussed. For plant extracts prepared from single herbs and herbal mixtures, dose-response studies in the range between 100 and 300 mg/kg are suggested, with more than a single gastric ulcer model either in rats or mice. A suitable reference compound should be used according to the ulcer model and in doses resembling those used for human patients. For pure compounds and structure-activity studies or trends, dose-response results should be provided for at least a parent compound in order to select a reasonable dose for comparison purposes. We suggest an evaluation of the activity of the parent compound in the 50-300 mg/kg range and to look for structural modification leading to derivatives with similar or higher gastroprotective effects than the reference antiulcer compounds.
Collapse
|
38
|
Li WX, Cui CB, Cai B, Yao XS. Labdane-type diterpenes as new cell cycle inhibitors and apoptosis inducers from Vitex trifolia L. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2005; 7:95-105. [PMID: 15621610 DOI: 10.1080/10286020310001617165] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Five labdane-type diterpenes, vitexilactone (1), (rel 5S,6R,8R,9R,10S)-6-acetoxy-9-hydroxy-13(14)-labden-16,15-olide (2), rotundifuran (3), vitetrifolin D (4), and vitetrifolin E (5), have been isolated from Vitex trifolia L., a Chinese folk medicine used to treat cancers, as new cell cycle inhibitors and apoptosis inducers through a bioassay-guided separation procedure and were identified by spectroscopic methods. Compounds 1-5 dramatically induced apoptosis both on tsFT210 and K562 cells at higher concentrations while at lower concentrations they inhibited the cell cycle progression of both tsFT210 and K562 cells at the G0/G1 phase. MIC values for 1-5 for inducing apoptosis and concentration regions for 1-5 for inhibiting cell cycle both on tsFT210 and K562 cells have also been determined. Furthermore, the inhibitory effects of 1-5 on the proliferation of tsFT210 and K562 cells have been evaluated by MTT assay to obtain IC50 values to confirm that 1-5 are anticancer components of Vitex trifolia L., which exert their anti-proliferative effect on cancer cells through inducing apoptosis and inhibiting the cell cycle. The present results provide labdane-type diterpenes, 1-5, as a new class of cell cycle inhibitors and compounds 1, 2, 4, and 5 as new apoptosis inducers, which also explains, for the first time, the usage of Vitex trifolia L. by Chinese people to treat cancers.
Collapse
Affiliation(s)
- Wen-Xin Li
- Tianjin Institute for Biomedical Research (TIBiR), Tianjin 300384, China
| | | | | | | |
Collapse
|