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Liu T, Xu LT, Ning DS, Fu YX, Li DX, Li LC, Pan ZH. Bioactive secondary metabolites isolated from the branches and leaves of Pittosporum pulchrum Gagnep. Fitoterapia 2024; 177:106145. [PMID: 39059747 DOI: 10.1016/j.fitote.2024.106145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/12/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Five new compounds, including two sesquiterpenoid glycosides (1 and 2), two monoterpenoid glycosides (3 and 4), and a quinovose ester (5), together with four known compounds (6-9) were isolated from branches and leaves of Pittosporum pulchrum Gagnep. Their structures were established by 1D and 2D NMR, HR-ESI-MS, IR and UV spectral analyses. This is the first time to investigate the chemical constituents of P. pulchrum. Subsequently, the anti-inflammatory and antioxidant activities of different solvent fractions of ethanol extract and isolated compounds were evaluated. Dichloromethane and ethyl acetate fractions dramatically inhibited the production of NO in a concentration-dependent manner in LPS-induced RAW264.7 cells. Ethyl acetate and n-butanol fractions showed excellent DPPH radical scavenging activities with IC50 values of 24.31 μg/mL and 27.81 μg/mL, respectively. Compounds 7 and 8 might be potential natural antioxidants with IC50 values of 16.13 μM and 24.81 μM, respectively.
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Affiliation(s)
- Ting Liu
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Li-Ting Xu
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - De-Sheng Ning
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Yu-Xia Fu
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Dong-Xing Li
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Lian-Chun Li
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
| | - Zheng-Hong Pan
- Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China.
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Wang MC, Kong WZ, Yang GC, Wang CH, Zhang LH, Gao JM, Zhang XY. Structure, anti-inflammatory and anti-bacterial activities of novel pentacyclic triterpenoids and other constituents from the leaves of Pittosporum elevaticostatum. Fitoterapia 2024; 177:106142. [PMID: 39067487 DOI: 10.1016/j.fitote.2024.106142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/17/2024] [Accepted: 07/21/2024] [Indexed: 07/30/2024]
Abstract
The investigation of the leaves of Pittosporum elevaticostatum Chang et Yan led to the isolation of fifteen pentacyclic triterpenoids (1-15), including five previously undescribed ones (1-5), and nine others (16-24). The structures of compounds 1-5 were elucidated based on comprehensive spectroscopic techniques, including one dimension (1D) and 2D nuclear magnetic resonance (NMR), high resolution electrospray ionization mass spectroscopy (HR-ESI-MS), and other methods. Compounds 2 and 13 demonstrated significant inhibitory activity against Listeria monocytogenes (L. monocytogenes) with minimum inhibitory concentration (MIC) values of 32 μM. Scanning electron microscopy (SEM) observations revealed insights into the antibacterial mechanism, indicating that compounds 2 and 13 either prevent biofilm formation of dispersed the preformed cell membranes. Additionally, compounds 1, 5, 7, and 12 exhibited anti-inflammatory activity on lipopolysaccharide (LPS)-stimulated BV-2 microglial cells with IC50 values ranging from 11.27 to 17.80 μM.
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Affiliation(s)
- Min-Chang Wang
- Xi'an Modern Chemistry Research Institute, Xi'an, 710065, Shaanxi, PR China; State Key Laboratory of Fluorine&Nitrogen Chemicals, Xi'an, 710065, Shaanxi, PR China
| | - Wei-Zhen Kong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Gui-Chun Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Chao-Hui Wang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Li-Han Zhang
- Xi'an Modern Chemistry Research Institute, Xi'an, 710065, Shaanxi, PR China; State Key Laboratory of Fluorine&Nitrogen Chemicals, Xi'an, 710065, Shaanxi, PR China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China.
| | - Xiu-Yun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China.
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Barbosa FL, Ehrenfried CA, Radulski DR, Oliveira CS, Stefanello MÉA, Zampronio AR. Antinociceptive and anti-inflammatory activity of extracts and α-pyrones isolated from Cantinoa stricta. Inflammopharmacology 2024; 32:1263-1275. [PMID: 38467913 DOI: 10.1007/s10787-024-01444-9] [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: 12/14/2023] [Accepted: 01/25/2024] [Indexed: 03/13/2024]
Abstract
This study evaluated the composition and the antinociceptive and anti-inflammatory activity of the crude extracts and two isolated compounds, anamarine (ANA) and 10-epi-olguine (eOL), obtained from the leaves of Cantinoa stricta (Lamiaceae). Crude ethanolic extract (EEt) and dichloromethane extract (DCM), selected based on NMR data, were submitted to pharmacological tests in male Swiss mice. The oral administration of EEt and DCM significantly reduced the second phase of formalin-induced nociception (60%), lipopolysaccharide (LPS)-induced mechanical hyperalgesia (90%), and carrageenan (Cg)-induced edema (25%). ANA and eOL, the major compounds in EEt and DCM extracts, administered orally or locally (in the paw), also reduced the LPS-induced mechanical hyperalgesia (Oral ID50 1.9 and 3.9 mg/kg; Local ID50 93.4 and 677.3 ng, respectively) without changing the thermal acute nociception or the motor performance of the animals. Local administration of ANA and eOL also reduced Cg-induced edema (40 and 23%, respectively). These isolated compounds did not change the mechanical hyperalgesia induced by tumor necrosis factor-α, interleukin-1β, prostaglandin E2, dibutyryl cyclic AMP, or forskolin but reversed the hyperalgesia induced by dopamine, epinephrine, and phorbol 12-myristate 13-acetate. The hyperalgesia induced by epinephrine was reversed in male but not in female mice, in which this response is not dependent on protein kinase C (PKC). These results suggest that C. stricta extracts possess antinociceptive and anti-inflammatory activity which is related to the presence of ANA and eOL. Differently from the known analgesics, these substances seem to exert their action mainly interfering with the sympathetic component of pain, possibly with PKC.
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Affiliation(s)
- Felipe Lukacievicz Barbosa
- Pharmacology Department, Biological Sciences Sector, Federal University of Paraná, Mailbox: 19031, Curitiba, PR, CEP 81540-970, Brazil
| | - Carlos Augusto Ehrenfried
- Pharmacology Department, Biological Sciences Sector, Federal University of Paraná, Mailbox: 19031, Curitiba, PR, CEP 81540-970, Brazil
| | - Débora Rasec Radulski
- Pharmacology Department, Biological Sciences Sector, Federal University of Paraná, Mailbox: 19031, Curitiba, PR, CEP 81540-970, Brazil
| | | | | | - Aleksander Roberto Zampronio
- Pharmacology Department, Biological Sciences Sector, Federal University of Paraná, Mailbox: 19031, Curitiba, PR, CEP 81540-970, Brazil.
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Zhang Q, Zhang Y, Guan S, Fang X, Liu X, Gao J, Zhang X. Eudesmane sesquiterpenoid glycosides from the leaves of Pittosporum lenticellatum with anti-neuroinflammatory activity. PHYTOCHEMISTRY 2023; 215:113833. [PMID: 37625681 DOI: 10.1016/j.phytochem.2023.113833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/18/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023]
Abstract
Chemical investigation of the EtOAc extract of the leaves of Pittosporum lenticellatum led to the isolation of twenty-five previously undescribed eudesmane sesquiterpenoid glycosides, pitlencosides A-Y (1-25); their structures were elucidated by extensive spectroscopic analysis, including 1D and 2D NMR, HR-ESI-MS, ECD spectra, and X-ray crystallographic analysis. Among them, compounds 4, 5, 7, 8, 15 and 16 exhibited significant inhibitory effects on the production of nitric oxide in lipopolysaccharide-induced BV-2 microglial cells by suppressing the expression of inducible nitric oxide synthase and cyclooxygenase-2, with IC50 values ranging from 7.95 to 25.88 μM, which showed stereo-chemical and substituent dependents. Western blot analysis and molecular docking simulation confirmed the anti-inflammatory activity of compounds 4, 5, 7, 8, 15 and 16.
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Affiliation(s)
- Qiangguo Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Yufeng Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Shengnan Guan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Xutong Fang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Xinzheng Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China.
| | - Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, PR China.
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Guan S, Xia J, Huang R, Ding J, Liu X, Zhang Y, Zhang X. Pitsubcosides A-L, highly esterified eudesmane sesquiterpenoid glycosides with antibacterial activity from Pittosporum subulisepalum and their mechanism. PEST MANAGEMENT SCIENCE 2023; 79:3471-3485. [PMID: 37139845 DOI: 10.1002/ps.7527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Plants from the genus Pittosporum are traditionally used as antibacterial, antifungal and antiviral agents. A bioassay evaluation of the extract of Pittosporum subulisepalum revealed antibacterial activity. This study focused on the discovery of the antibacterial metabolism in P. subulisepalum, as well as the modes of action of its active components. RESULTS A chemical investigation of an ethyl acetate (EtOAc) extract of the aerial parts of P. subulisepalum led to the isolation of 12 previously undescribed eudesmane sesquiterpenoid glycoside esters (ESGEs), pitsubcosides A-L (1-12). Their structures were elucidated by extensive spectroscopic analysis, including one- and two-dimensional NMR, high-resolution electrospray ionization mass spectrometry, electronic circular dichroism spectra and single-crystal X-ray crystallography analysis or by comparing with authentic samples. The new ESGEs were characterized by their highly esterified glycoside moieties. Among them, compounds 1-3, 5 and 8 showed a moderate inhibitory effect against Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Bacillus cereus, Bacillus subtilis, Pseudomonas syringae pv. actinidiae (Psa) and Erwinia carotovora with minimum inhibitory concentrations (MICs) ranging from 3.13 to 100 μm. Among them, compounds 3 and 5 showed remarkable antibacterial activity against S. aureus and Psa with MIC values of 6.25 and 3.13 μm, respectively. Live bacterial mass and the biofilms of S. aureus and Psa were quantified using methyl tetrazolium and crystal violet assays. Fluorescence microscopy and scanning electron microscopy experiments revealed an antibacterial mechanism of cell membrane architectural disruption. CONCLUSION The results suggest that ESGEs possess great potential for the development of antibacterial agents to control plant pathogens. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Shengnan Guan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Jiankai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Rong Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Jiaqi Ding
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Xinzheng Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Yufeng Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
| | - Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, PR China
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Further sesquiterpenoids from Pittosporum qinlingense and their anti-inflammatory activity. Fitoterapia 2022; 162:105292. [PMID: 36064153 DOI: 10.1016/j.fitote.2022.105292] [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: 06/05/2022] [Revised: 08/25/2022] [Accepted: 08/28/2022] [Indexed: 11/23/2022]
Abstract
Four new sesquiterpenoid glycoside esters, Pitqinlingoside N-Q (1-4), together with eleven known metabolites (5-15), were isolated from 95% EtOH extract of the twigs, fruits and leaves of P. qinlingense. The structures of new compounds were elucidated on the basis of extensive spectroscopic analyses, including IR, UV, HRMS, NMR and electronic circular dichroism spectra. Unusal glycoside esters are characterized by the presence of polyacylated β-D-fucopyranosyl and β-d-glucopyranosyl units. Pitqinlingoside N (1), O (2), P (3), boscialin (5) and arvoside C (6) showed significant nitric oxide production inhibition in lipopolysaccharide (LPS)-induced BV-2 microglial cells with IC50 values ranging from 1.58 to 28.74 μM. Structure-activity relationships of the isolated compounds are discussed.
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Zhang X, Liu Y, Deng J, Xia J, Zhang Q, Chen X, Liu R, Gao Y, Gao JM. Structurally Diverse Sesquiterpenoid Glycoside Esters from Pittosporum qinlingense with Anti-neuroinflammatory Activity. JOURNAL OF NATURAL PRODUCTS 2022; 85:115-126. [PMID: 34978437 DOI: 10.1021/acs.jnatprod.1c00544] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thirteen new sesquiterpenoid glycoside esters, including 11 aromadendrane-type compounds, pitqinlingosides A-K (1-11), one cadinane-type compound, pitqinlingoside L (12), and one eudesmane-type compound, pitqinlingoside M (13), together with seven known analogues (14-20) were isolated from the twigs, fruits, and leaves of Pittosporum qinlingense. Structures were elucidated by analysis of spectroscopic data, gas chromatography mass spectrometry (GC-MS), and chemical methods. The absolute configuration was confirmed by single-crystal X-ray crystallography analysis or electronic circular dichroism spectra. Unusual glycoside esters are characterized by the presence of polyacylated β-d-fucopyranosyl, β-d-glucopyranosyl, and β-d-xylopyranosyl units. Pitqinlingosides A (1), B (2), D (4), and F (6), pittosporanoside A1 acetate (14), and pittosporanoside A1 (16) showed significant nitric oxide production inhibition in lipopolysaccharide (LPS)-induced BV-2 microglial cells with IC50 values ranging from 0.95 to 24.12 μM. Structure-activity relationships of the isolated compounds are discussed.
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Affiliation(s)
- Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yao Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jili Deng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiankai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Xin Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Runze Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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Chakkinga Thodi R, Ibrahim JM, Nair AS, Thacheril Sukumaran S. Exploring the potent inhibitor β-stigmasterol from Pittosporum dasycaulon Miq. leaves against snake venom phospholipase A2 protein through in vitro and molecular dynamics behavior approach. TOXIN REV 2022. [DOI: 10.1080/15569543.2021.2021946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Junaida M. Ibrahim
- Department of Computational Biology and Bioinformatics, University of Kerala, Kariavattom, India
| | - Achuthsankar S. Nair
- Department of Computational Biology and Bioinformatics, University of Kerala, Kariavattom, India
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Lobina C, Sau R, Fara F, Maccioni P, Carai MAM, Colombo G. Analgesic properties of a food grade lecithin delivery system of Zingiber officinale and Acmella oleracea standardized extracts in rats. Nat Prod Res 2021; 35:3078-3082. [PMID: 31651194 DOI: 10.1080/14786419.2019.1680667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/17/2019] [Accepted: 09/28/2019] [Indexed: 10/25/2022]
Abstract
This study investigated whether (i) the 5:1 combination of standardized extracts of Zingiber officinale and Acmella oleracea is endowed with analgesic effects and (ii) the phospholipid-based formulation of Zingiber officinale and Acmella oleracea extracts (ZAP) potentiated the analgesic effects of the plain extract combination (PEC). To this end, rats were exposed to acute pain (Tail Flick test) and chronic, inflammatory pain [Von Frey monofilament test and Randall-Selitto paw pressure test in rats treated intraplantarily with complete Freund's adjuvant (CFA)]. The plain combination of per se ineffective doses of the two extracts produced analgesic effects in healthy rats. ZAP was more potent and effective than the corresponding doses of PEC. ZAP also produced analgesic effects in CFA-treated rats. Studies are now warranted to assess whether the analgesic properties of ZAP may generalize to humans.
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Affiliation(s)
- Carla Lobina
- Neuroscience Institute, Section of Cagliari, National Research Council of Italy, Monserrato, CA, Italy
| | - Roberta Sau
- Neuroscience Institute, Section of Cagliari, National Research Council of Italy, Monserrato, CA, Italy
| | - Federica Fara
- Neuroscience Institute, Section of Cagliari, National Research Council of Italy, Monserrato, CA, Italy
| | - Paola Maccioni
- Neuroscience Institute, Section of Cagliari, National Research Council of Italy, Monserrato, CA, Italy
| | | | - Giancarlo Colombo
- Neuroscience Institute, Section of Cagliari, National Research Council of Italy, Monserrato, CA, Italy
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Piegang BN, Ndjateu FST, Tene M, Bomba FDT, Tseuguem PP, Nguelefack TB. Antinociceptive, anti-inflammatory and antioxidant effects of Boerhavia coccinea extracts and fractions on acute and persistent inflammatory pain models. J Basic Clin Physiol Pharmacol 2020; 32:/j/jbcpp.ahead-of-print/jbcpp-2020-0118/jbcpp-2020-0118.xml. [PMID: 33161387 DOI: 10.1515/jbcpp-2020-0118] [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: 05/16/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Background Boerhavia coccinea (Nyctaginaceae) is an herbaceous plant used for the treatment of pain. The aim of this study was to evaluate the antinociceptive and anti-inflammatory activities of the aqueous (AEBC) and ethanol (EEBC) extracts of Boerhavia coccinea as well as the major fractions (F1, F2 and F3) from EEBC. Methods The antinociceptive effect of the extracts and fractions was evaluated using formalin test. AEBC, EEBC and F1 were selected and further evaluated acutely (24 h) and chronically (16 days) in Complete Freund's Adjuvant (CFA)-induced persistent inflammatory pain for their antihyperalgesic and anti-inflammatory effects. They were administered orally (100 and 200 mg/kg/day) from 48 h following the intraplantar injection of 100 µL of CFA. After the 16 days of chronic treatment, rats' spinal cord and brain were collected for the evaluation of oxidative stress parameters namely nitric oxide (NO), malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT). Results AEBC, EEBC and F1 significantly inhibited the first and second phases of the formalin-induced pain. They significantly reduced the hyperalgesia both in acute and chronic treatments. These extracts showed no acute anti-inflammatory effect. AEBC and EEBC exhibited anti-inflammatory activities after repeated administration. AEBC, EEBC and F1 significantly reduced MDA level and significantly increased SOD and catalase activities, mainly in the spinal cord. AEBC and EEBC also reduced the NO production in the spinal cord. Conclusions Boerhavia coccinea extracts and F1 possess potent antinociceptive activity which is not related to their anti-inflammatory properties. Their antioxidant effects may contribute to these activities in chronic treatment.
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Affiliation(s)
- Basile Nganmegne Piegang
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
- and Institut Universitaire du Golf de Guinée (IUG), Institut Supérieur des Sciences Appliquées (ISA), Douala, Cameroon
| | - Fabrice Sterlin Tchantchou Ndjateu
- Laboratory of Natural Product Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Mathieu Tene
- Laboratory of Natural Product Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Francis Désiré Tatsinkou Bomba
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Pius Pum Tseuguem
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
| | - Télesphore Benoit Nguelefack
- Laboratory of animal physiology and phytopharmacology, Department of Animal Biology, Faculty of Science, University of Dschang, P.O.Box 67 Dschang, Cameroon
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Protective effects of a polyphenol-enriched fraction of the fruit peel of Annona crassiflora Mart. on acute and persistent inflammatory pain. Inflammopharmacology 2019; 28:759-771. [PMID: 31845053 DOI: 10.1007/s10787-019-00673-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/21/2019] [Indexed: 12/23/2022]
Abstract
Different parts of Annona crassiflora Mart., a native species from Brazilian savanna, were traditionally used for the treatment of a wide variety of ailments including arthritis. Thus, this study aimed to investigate the possible antinociceptive and anti-inflammatory properties of a polyphenol-enriched fraction of the fruit peel of A. crassiflora, named here as EtOAc, in mice. Pro-inflammatory cytokines and nitric oxide (NO) production were evaluated in LPS-activated macrophages. Then, EtOAc fraction was administered by oral route in male C57BL/6/J mice, and the animals were submitted to glutamate-induced nociception and complete Freund's adjuvant (CFA)-induced monoarthritis tests to assess nociception (mechanical, spontaneous and cold pain) and inflammation (edema and neutrophil infiltration), and to the open-field and rotarod tests for motor performance analysis. EtOAc fraction inhibited the production of IL-6 and NO in the LPS-induced macrophages, and reduced spontaneous nociception induced by glutamate, without altering the animals' locomotor activity. In addition, the polyphenol-enriched fraction was able to revert the early and late hyperalgesia induced by CFA, as well as edema at the acute phase. Reduction of myeloperoxidase activity and inflammatory cell infiltration was observed in the paw tissue of mice injected with CFA and treated with EtOAc fraction. Together, our results support the antinociceptive and anti-inflammatory effects of the polyphenol-enriched fraction of A. crassiflora fruit peel and suggest that these effects are triggered, at least in part, by suppressing pro-inflammatory cytokines and neutrophils infiltration.
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Aqueous and Methanol Extracts of Paullinia pinnata (Sapindaceae) Improve Monosodium Urate-Induced Gouty Arthritis in Rat: Analgesic, Anti-Inflammatory, and Antioxidant Effects. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5946291. [PMID: 31885654 PMCID: PMC6915157 DOI: 10.1155/2019/5946291] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/10/2019] [Accepted: 10/22/2019] [Indexed: 11/18/2022]
Abstract
The profound modification of lifestyle and food habits has led to an important increase in the prevalence of gout. Unfortunately, there are current unmet needs for the treatment of this disease, prompting the search for new alternatives. Paullinia pinnata is a plant used to treat various diseases including arthritis. The present work aimed to investigate the antigouty activities of the aqueous (AEPP) and methanolic (MEPP) extracts of P. pinnata as well as their in vivo antioxidant properties. The gouty arthritis was induced by injecting 50 μl of monosodium urate (MSU, 100 mg/ml) in the left hind ankle of rats. P. pinnata extracts were administered orally at the doses of 100 and 200 mg/kg/day for 6 days, starting 24 h after MSU injection. Allopurinol 5 mg/kg/day was used as reference drug. Inflammation and hyperalgesia were daily monitored from 24 hours after treatment initiation and for the 6 consecutive days. Myeloperoxidase (MPO) quantification was done in collected synovial fluid. Nitrite oxide (NO), malondialdehyde (MDA), and superoxide dismutase (SOD) were evaluated in the spinal cord and the brain. The serum content of SOD was additionally quantified. AEPP and MEPP significantly (p < 0.001) reduce MSU-induced inflammation (22.41% to 93.65%) and hyperalgesia (33.33% to 64.44%) in both ankle and paw. AEPP and MEPP significantly (p < 0.001) reduce synovial MPO production with the percentage ranging from 76.30% to 85.19%. AEPP and MEPP significantly (p < 0.001) reduce serum, spinal, left and right hemispheres NO, and MDA and increase the SOD activity (p < 0.001). P. pinnata leaf extracts possess potent curative effects against MSU-induced gouty arthritis that combines analgesic, anti-inflammatory, and antioxidant activities. These findings support the use of P. pinnata leaves extracts in the treatment of gouty arthritis and further present the plant as a potent source of efficient antigouty medicine.
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Subanesthetic Dose of Ketamine Improved CFA-induced Inflammatory Pain and Depression-like Behaviors Via Caveolin-1 in Mice. J Neurosurg Anesthesiol 2019; 32:359-366. [DOI: 10.1097/ana.0000000000000610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Sun W, Ma M, Yu H, Yu H. Inhibition of lncRNA X inactivate-specific transcript ameliorates inflammatory pain by suppressing satellite glial cell activation and inflammation by acting as a sponge of miR-146a to inhibit Na v 1.7. J Cell Biochem 2018; 119:9888-9898. [PMID: 30129228 DOI: 10.1002/jcb.27310] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 06/25/2018] [Indexed: 12/28/2022]
Abstract
Long noncoding RNAs (lncRNA) has been validated to participate in nociception in inflammatory pain, presenting as a potential target against anesthesia. Previous research work confirmed the correlation between lncRNA X inactivate-specific transcript (XIST) and inflammation. However, its role in inflammatory pain is undefined. In animal pain models, voltage-gated sodium channels (VGSCs) reportedly participate in neural excitation. In this study, we observed the high expression of XIST and VGSC 1.7 (Nav 1.7) in the dorsal root ganglion (DRG) of the complete Freund's adjuvant (CFA)-induced rat inflammatory pain model. Furthermore, XIST inhibition alleviated pain behavior and the activation of DRG satellite glial cells by suppressing glial fibrillary acidic protein (GFAP) expression, as well as inflammatory cytokine levels of interleukin-6 and tumor necrosis factor-α. XIST downregulation increased the mechanical pain threshold in an inflammatory pain model. Moreover, the expression of miR-146a was decreased in CFA rats. In vitro, XIST acted as a sponge of miR-146a, which targeted Nav 1.7 via bioinformatic prediction, luciferase reporter, and pull-down assay. More importantly, activation of the Nav 1.7 pathway or miR-146 depression both reversed XIST knockdown-inhibited satellite glial cell activation and inflammatory pain in CFA rats. These results suggest that cessation of XIST may ameliorate inflammatory pain by acting as a sponge of miR-146a to inhibit Nav1.7, implying a promising strategy against inflammatory pain.
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Affiliation(s)
- Wenbo Sun
- Department of Anesthesia, Cangzhou Central Hospital, CangZhou, China
| | - Meina Ma
- Department of Anesthesia, Cangzhou Central Hospital, CangZhou, China
| | - Hongmei Yu
- Department of Anesthesia, Cangzhou Central Hospital, CangZhou, China
| | - Hong Yu
- Department of Anesthesia, Cangzhou Central Hospital, CangZhou, China
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Singh G, Bhatti R, Mannan R, Singh D, Kesavan A, Singh P. Osthole ameliorates neurogenic and inflammatory hyperalgesia by modulation of iNOS, COX-2, and inflammatory cytokines in mice. Inflammopharmacology 2018; 27:949-960. [PMID: 29736690 DOI: 10.1007/s10787-018-0486-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/20/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND Osthole is a bioactive component reported in medicinal plants such as Angelica pubescens and Cnidium monnieri, known for analgesic activity. However, the toxicity, median effective dose (ED50), and dual modulation of nitric oxide and cyclooxygenase pathways along with inflammatory cytokines of osthole are yet to be determined. METHODS The animals (mice) were assessed for general behaviour and mortality in varying doses (50, 300, and 2000 mg kg-1) of osthole for acute toxicity over 14 days. The analgesic activity was investigated using acetic acid and formalin-induced hyperalgesia, and anti-inflammatory activity was explored in carrageenan-induced paw oedema. ED50 of osthole was calculated using Design Expert software. Involvement of nitric oxide and cyclooxygenase pathways was investigated by agonist challenges with L-arginine and substance P, respectively. The expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) was determined in spinal sections by immunohistochemical analysis. Lipopolysaccharide (LPS) challenge was used to assess in vivo effect on inflammatory cytokines (TNFα and IL-6). RESULTS Acute toxicity studies revealed no behavioural abnormality or mortality on osthole treatment and unremarkable histological findings. Osthole was found to significantly decrease acetic acid and formalin-induced hyperalgesia (ED50 = 5.43 mg kg-1) and carrageenan-induced paw oedema with no toxicity symptoms. Osthole produced a marked decrease in iNOS and COX-2 expression as well as TNFα and IL-6. The findings corroborate to modulation of iNOS and COX-2 and inflammatory cytokines by osthole. This study provides promising insights and prospects for application of osthole in pain management.
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Affiliation(s)
- Gurjit Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Rajbir Bhatti
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Rahul Mannan
- Department of Pathology, Sri Guru Ram Das Institute of Medical Sciences and Research, Amritsar, India
| | - Drishtant Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, India
| | - Anup Kesavan
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, India
| | - Palwinder Singh
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
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