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Yuandani, Jantan I, Haque MA, Rohani AS, Nugraha SE, Salim E, Septama AW, Juwita NA, Khairunnisa NA, Nasution HR, Utami DS, Ibrahim S. Immunomodulatory effects and mechanisms of the extracts and secondary compounds of Zingiber and Alpinia species: a review. Front Pharmacol 2023; 14:1222195. [PMID: 37533631 PMCID: PMC10391552 DOI: 10.3389/fphar.2023.1222195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023] Open
Abstract
Zingiber and Alpinia species (family: Zingiberaceae) are popularly used in food as spices and flavoring agents and in ethnomedicine to heal numerous diseases, including immune-related disorders. However, their ethnomedicinal uses have not been sufficiently supported by scientific investigations. Numerous studies on the modulating effects of plants and their bioactive compounds on the different steps of the immune system have been documented. This review aimed to highlight up-to-date research findings and critically analyze the modulatory effects and mechanisms of the extracts and secondary compounds of several Zingiber and Alpinia species, namely, Zingiber officinale Roscoe, Z. cassumunar Roxb., Z. zerumbet (L.) Roscoe ex Sm., Alpinia galanga Linn., A. conchigera Griff, A. katsumadai Hayata, A. oxyphylla Miq., A. officinarum Hance, A. zerumbet (Pers.) Burtt. et Smith, and A. purpurata (Viell.) K. Schum. on the immune system, particularly via the inflammation-related signaling pathways. The immunomodulating activities of the crude extracts of the plants have been reported, but the constituents contributing to the activities have mostly not been identified. Among the extracts, Z. officinale extracts were the most investigated for their in vitro, in vivo, and clinical effects on the immune system. Among the bioactive metabolites, 6-, 8-, and 10-gingerols, 6-shogaol, and zerumbone from Zingiber species and cardamomin, 1'-acetoxychavicol acetate, yakuchinone, rutin, 1,8-cineole, and lectin from Alpinia species have demonstrated strong immunomodulating effects. More experimental studies using cell and animal models of immune-related disorders are necessary to further understand the underlying mechanisms, together with elaborate preclinical pharmacokinetics, pharmacodynamics, bioavailability, and toxicity studies. Many of these extracts and secondary metabolites are potential candidates for clinical development in immunomodulating agents or functional foods to prevent and treat chronic inflammatory disorders.
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Affiliation(s)
- Yuandani
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
- Centre of Excellence for Chitosan and Advanced Materials, Universitas Sumatera Utara, Medan, Indonesia
| | - Ibrahim Jantan
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Md. Areeful Haque
- Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ade Sri Rohani
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Sony Eka Nugraha
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Emil Salim
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Abdi Wira Septama
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), Kawasan PUSPIPTEK Serpong, Tangerang Selatan, Bogor, Indonesia
| | - Nur Aira Juwita
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | | | | | - Dinda Sari Utami
- Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Sarah Ibrahim
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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Tyler SE, Tyler LD. Pathways to healing: Plants with therapeutic potential for neurodegenerative diseases. IBRO Neurosci Rep 2023; 14:210-234. [PMID: 36880056 PMCID: PMC9984566 DOI: 10.1016/j.ibneur.2023.01.006] [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: 09/24/2022] [Accepted: 01/25/2023] [Indexed: 02/12/2023] Open
Abstract
Some of the greatest challenges in medicine are the neurodegenerative diseases (NDs), which remain without a cure and mostly progress to death. A companion study employed a toolkit methodology to document 2001 plant species with ethnomedicinal uses for alleviating pathologies relevant to NDs, focusing on its relevance to Alzheimer's disease (AD). This study aimed to find plants with therapeutic bioactivities for a range of NDs. 1339 of the 2001 plant species were found to have a bioactivity from the literature of therapeutic relevance to NDs such as Parkinson's disease, Huntington's disease, AD, motor neurone diseases, multiple sclerosis, prion diseases, Neimann-Pick disease, glaucoma, Friedreich's ataxia and Batten disease. 43 types of bioactivities were found, such as reducing protein misfolding, neuroinflammation, oxidative stress and cell death, and promoting neurogenesis, mitochondrial biogenesis, autophagy, longevity, and anti-microbial activity. Ethno-led plant selection was more effective than random selection of plant species. Our findings indicate that ethnomedicinal plants provide a large resource of ND therapeutic potential. The extensive range of bioactivities validate the usefulness of the toolkit methodology in the mining of this data. We found that a number of the documented plants are able to modulate molecular mechanisms underlying various key ND pathologies, revealing a promising and even profound capacity to halt and reverse the processes of neurodegeneration.
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Key Words
- A-H, Alpers-Huttenlocher syndrome
- AD, Alzheimer’s disease
- ALS, Amyotrophic lateral sclerosis
- BBB, blood-brain barrier
- C. elegans,, Caenorhabditis elegans
- CJD, Creutzfeldt-Jakob disease
- CMT, Charcot–Marie–Tooth disease
- CS, Cockayne syndrome
- Ech A, Echinochrome A
- FDA, Food and Drug Administration
- FRDA, Friedreich’s ataxia
- FTD, Frontotemporal dementia
- HD, Huntington’s disease
- Hsp, Heat shock protein
- LSD, Lysosomal storage diseases
- MS, Multiple sclerosis
- MSA, Multiple system atrophy
- MSP, Multisystem proteinopathy
- Medicinal plant
- ND, neurodegenerative disease
- NPC, Neimann-Pick disease type C
- NSC, neural stem cells
- Neuro-inflammation
- Neurodegeneration
- Neurogenesis
- PC, pharmacological chaperone
- PD, Parkinson’s disease
- Protein misfolding
- SMA, Spinal muscular atrophy
- VD, Vascular dementia
- prion dis, prion diseases
- α-syn, alpha-synuclein
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Affiliation(s)
- Sheena E.B. Tyler
- John Ray Research Field Station, Cheshire, United Kingdom
- Corresponding author.
| | - Luke D.K. Tyler
- School of Natural Sciences, Bangor University, Gwynedd, United Kingdom
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Nam Hoang N, Kodama T, Nwet Win N, Prema, Minh Do K, Abe I, Morita H. A New Monoterpene from the Rhizomes of Alpinia galanga and Its Anti-Vpr Activity. Chem Biodivers 2021; 18:e2100401. [PMID: 34415099 DOI: 10.1002/cbdv.202100401] [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: 05/21/2021] [Accepted: 08/20/2021] [Indexed: 11/09/2022]
Abstract
A new menthane-type monoterpene, alpigalanol (1), together with four known terpenes (2-5) were isolated from the ethyl acetate soluble fraction of the 70 % ethanol extract of the Alpinia galanga rhizomes. The structure of 1 was determined by spectroscopic analyses, including 1D- and 2D-NMR. The extract of the A. galanga rhizomes and all isolated compounds (1-5) possessed Vpr inhibitory activities against the TREx-HeLa-Vpr cells at a concentration of 1.25 μM without showing any cytotoxicity.
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Affiliation(s)
- Nhat Nam Hoang
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Takeshi Kodama
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Nwet Nwet Win
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Prema
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan.,Department of Chemistry, University of Yangon, Yangon, 11041, Myanmar
| | - Kiep Minh Do
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
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Tang X, Xu C, Yagiz Y, Simonne A, Marshall MR. Phytochemical profiles, and antimicrobial and antioxidant activities of greater galangal [Alpinia galanga (Linn.) Swartz.] flowers. Food Chem 2018; 255:300-308. [PMID: 29571480 DOI: 10.1016/j.foodchem.2018.02.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 01/16/2018] [Accepted: 02/06/2018] [Indexed: 11/17/2022]
Abstract
Previous studies of galangal (Alpinia galanga) have focussed mostly on rhizomes but seldom on flowers. A comprehensive look at galangal flowers could reveal additional benefits. The chemical composition of galangal flowers was significantly (p < 0.05) different from that of galangal rhizome. Pentadecane and α-humulene were identified as major compounds of galangal flower essential oil. 1'-acetoxyeugenol acetate was identified as the highest compound in flowers and exhibited the strongest antimicrobial activity among all fractions, with MIC50 values of 34 μg/ml against Staphylococcus aureus and 68 μg/ml against Listeria monocytogenes. Galangal flowers had a 3-fold higher total phenols content than had rhizomes (10.5 vs. 3.33 mg GAE/g powder). The antioxidant activities of different flower fractions varied from 2 to 4.45 mmol trolox/g phenolics. These findings suggest that antimicrobial and antioxidant agents extracted from galangal flowers could potentially be utilized as natural food preservatives or as therapeutic agents.
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Affiliation(s)
- Xixuan Tang
- Department of Food Science and Human Nutrition, University of Florida, Gainesville 32611, USA.
| | - Changmou Xu
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln 68588, USA
| | - Yavuz Yagiz
- Department of Food Science and Human Nutrition, University of Florida, Gainesville 32611, USA
| | - Amarat Simonne
- Department of Family, Youth and Community Sciences, University of Florida, Gainesville 32611, USA.
| | - Maurice R Marshall
- Department of Food Science and Human Nutrition, University of Florida, Gainesville 32611, USA
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Ma XN, Xie CL, Miao Z, Yang Q, Yang XW. An overview of chemical constituents from Alpinia species in the last six decades. RSC Adv 2017. [DOI: 10.1039/c6ra27830b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alpinia species is one of the most important genera of the Zingiberaceae family. Up to 2015, 544 compounds with various bioactivities were isolated, the major components are diarylheptanoids (143) and sesquiterpenoids (132).
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Affiliation(s)
- Xiao-Ni Ma
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Chun-Lan Xie
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Zi Miao
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
| | - Quan Yang
- Department of Traditional Chinese Medicine
- Guangdong Pharmaceutical University
- Guangzhou 510006
- China
| | - Xian-Wen Yang
- State Key Laboratory Breeding Base of Marine Genetic Resources
- Key Laboratory of Marine Genetic Resources
- Fujian Key Laboratory of Marine Genetic Resources
- Third Institute of Oceanography
- State Oceanic Administration
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Li J, Aizawa Y, Hiramoto K, Kasahara E, Tsuruta D, Suzuki T, Ikeda A, Azuma H, Nagasaki T. Anti-inflammatory effect of water-soluble complex of 1′-acetoxychavicol acetate with highly branched β-1,3-glucan on contact dermatitis. Biomed Pharmacother 2015; 69:201-7. [DOI: 10.1016/j.biopha.2014.11.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 11/12/2014] [Indexed: 10/24/2022] Open
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Nampoothiri SV, Esakkidurai T, Pitchumani K. Identification and Quantification of Phenolic Compounds inAlpinia galangaandAlpinia calcarataand its Relation to Free Radical Quenching Properties: A Comparative Study. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/10496475.2014.923358] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Antiproliferative activity and induction of apoptotic by ethanolic extract of Alpinia galanga rhizhome in human breast carcinoma cell line. Altern Ther Health Med 2014; 14:192. [PMID: 24935101 PMCID: PMC4107979 DOI: 10.1186/1472-6882-14-192] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 05/08/2014] [Indexed: 11/21/2022]
Abstract
Background We investigated the potential of galangal rhizomes to induce cytotoxic and apoptotic effects in the cultured human breast carcinoma cell line, (MCF-7) in compare with the non-malignant (MRC-5) cells. Methods Both cells were cultured in DMEM medium and treated with galangal rhizomes for three consecutive days. The percentage of apoptotic cells was determined by flow cytometry using Annexin-V fluorescein isothiocyanate. Results The results showed that the ethanolic extract of galangal rhizomes decreased cell viability in the malignant cells as a concentration- and time- dependent manner. The IC50 values against MCF-7 were determined at 400.0 ± 11.7 and 170.0 ± 5.9 μg/ml after 48 and 72 h respectively. The morphology of MCF-7 cells treated with the ethanolic extract confirmed the cell proliferation assay results. Alpinia galanga induced apoptosis in MCF-7 cells, as determined by flow cytometry. Conclusions We concluded that the extract of Alpinia galanga exerts pro-apoptotic effects in a breast cancer-derived cell line and could be considered as a potential chemotherapeutic agent in breast cancer.
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Kaushik P, Kaushik D, Yadav J, Pahwa P. Protective effect of Alpinia galanga in STZ induced diabetic nephropathy. Pak J Biol Sci 2013; 16:804-811. [PMID: 24498833 DOI: 10.3923/pjbs.2013.804.811] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The activity of the alcoholic extract of the rhizomes of Alpinia galanga was studied for the treatment of diabetes-induced nephropathy in rats. Wistar rats received a single intraperitoneal streptozotocin injection (60 mg kg(-1) b.wt.) to induce diabetes. Rats were considered diabetic if blood glucose concentration increased up to 200 or more mg dL(-1). The rats were orally administered alcoholic extract of Alpinia galanga (50, 100 and 200 mg kg(-1)), once daily for 40 days. Body weight, blood glucose, urinary albumin, glycosylated haemoglobin, Blood Urea Nitrogen (BUN), creatinine, lipids profile, Malondialdehyde (MDA), Superoxide Dismutase (SOD), Glutathione (GSH) and Catalase (CAT) were then evaluated. After 40 days of treatment, Alpinia galanga significantly (p<0.05) decreased glycaemia, Blood Urea Nitrogen (BUN), urinar albumin and increased body weight in diabetes-nephropathic rats. The extract (200 mg kg(-1)) decreased MDA significantly (p<0.01); GSH (p<0.05), increased SOD (p<0.05) and CAT (p<0.05) in the rats, compared with nephropathic control. The extract (100 and 200 mg kg(-1), respectively) lowered (p<0.05) total cholesterolemia, blood triglycerides (p<0.05), blood LDL cholesterol (p<0.05), but increased blood HDL cholesterol (p<0.01). Overall, atherogenic index was decreased significantly (p<0.05). In the present study, the rhizomes of Alpinia galanga demonstrated significant nephro-protective activities in the tested models. The alcoholic extract of the rhizomes of Alpinia galanga holds promise for the development of a standardized phytomedicine for diabetes mellitus and kidney disease treatment.
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MESH Headings
- Albuminuria/etiology
- Albuminuria/prevention & control
- Alpinia
- Animals
- Antioxidants/pharmacology
- Biomarkers/blood
- Blood Glucose/drug effects
- Blood Glucose/metabolism
- Blood Urea Nitrogen
- Body Weight/drug effects
- Creatinine/blood
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/chemically induced
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/drug therapy
- Diabetic Nephropathies/blood
- Diabetic Nephropathies/etiology
- Diabetic Nephropathies/prevention & control
- Ethanol/chemistry
- Glycated Hemoglobin/metabolism
- Hypoglycemic Agents/pharmacology
- Kidney/drug effects
- Kidney/metabolism
- Kidney/pathology
- Lipid Peroxidation/drug effects
- Lipids/blood
- Male
- Oxidative Stress/drug effects
- Phytotherapy
- Plant Extracts/pharmacology
- Plants, Medicinal
- Rats
- Rats, Sprague-Dawley
- Rats, Wistar
- Rhizome
- Solvents/chemistry
- Time Factors
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Affiliation(s)
- P Kaushik
- Institute of Phramaceutical sciences, Kurukshetra University, Kurukshetra, India
| | - D Kaushik
- Institute of Phramaceutical sciences, Kurukshetra University, Kurukshetra, India
| | - J Yadav
- Institute of Phramaceutical sciences, Kurukshetra University, Kurukshetra, India
| | - P Pahwa
- Institute of Phramaceutical sciences, Kurukshetra University, Kurukshetra, India
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Raj G, Pradeep D, Yusufali C, Dan M, Baby S. Chemical profiles of volatiles in fourAlpiniaspecies from Kerala, South India. JOURNAL OF ESSENTIAL OIL RESEARCH 2013. [DOI: 10.1080/10412905.2012.751058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Seo JW, Cho SC, Park SJ, Lee EJ, Lee JH, Han SS, Pyo BS, Park DH, Kim BH. 1'-Acetoxychavicol acetate isolated from Alpinia galanga ameliorates ovalbumin-induced asthma in mice. PLoS One 2013; 8:e56447. [PMID: 23451048 PMCID: PMC3581550 DOI: 10.1371/journal.pone.0056447] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 01/11/2013] [Indexed: 01/22/2023] Open
Abstract
The World Health Organization reports that 235 million people are currently affected by asthma. This disease is associated with an imbalance of Th1 and Th2 cells, which results in the upregulation of cytokines that promote chronic inflammation of the respiratory system. The inflammatory response causes airway obstruction and can ultimately result in death. In this study we evaluated the effect of 1'-acetoxychavicol acetate (ACA) isolated from Alpinia galanga rhizomes in a mouse model of ovalbumin (OVA)-induced asthma. To generate the mouse model, BALB/c mice were sensitized by intraperitoneal injection of OVA and then challenged with OVA inhalation for 5 days. Mice in the vehicle control group were sensitized with OVA but not challenged with OVA. Treatment groups received dexamethasone, 25 mg/kg/day ACA, or 50 mg/kg/day ACA for 5 days. Asthma-related inflammation was assessed by bronchoalveolar lavage fluid cell counts and histopathological and immunohistochemical analysis of lung tissues. Our results showed that ACA reduced the infiltration of white blood cells (especially eosinophils) and the level of IgE in the lungs of mice challenged with OVA and suppressed histopathological changes such as airway remodeling, goblet-cell hyperplasia, eosinophil infiltration, and glycoprotein secretion. In addition, ACA inhibited expression of the Th2 cytokines interleukin (IL)-4 and IL-13, and Th1 cytokines IL-12α and interferon-γ. Because asthmatic reactions are mediated by diverse immune and inflammatory pathways, ACA shows promise as an antiasthmatic drug candidate.
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Affiliation(s)
- Joung-Wook Seo
- Korea Institute of Toxicology, Daejeon, Korea
- College of Pharmacy, Chungnam National University, Daejeon, Korea
| | - Soon-Chang Cho
- Center for Senior Industry, Youngdong University, Yeongdong, Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Eun-Ji Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | | | | | | | | | - Bong-Hee Kim
- College of Pharmacy, Chungnam National University, Daejeon, Korea
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Roy SK, Pahwa S, Nandanwar H, Jachak SM. Phenylpropanoids of Alpinia galanga as efflux pump inhibitors in Mycobacterium smegmatis mc² 155. Fitoterapia 2012; 83:1248-55. [PMID: 22735598 DOI: 10.1016/j.fitote.2012.06.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 06/11/2012] [Accepted: 06/15/2012] [Indexed: 11/16/2022]
Abstract
The first and second line drugs used for the treatment of tuberculosis are now becoming ineffective due to emergence of resistant strains. Efflux pump provokes resistance in mycobacterium and hence could be explored as a new target for the discovery of anti-TB agents. In search of efflux pump inhibitors, MIC and modulation factor of phenylpropanoids isolated from A. galanga rhizome were determined prior to the accumulation and efflux assay. Phenylpropanoid compounds viz. 1'-S-1'-acetoxychavicol acetate, trans-p-coumaryl diacetate and 1'-S-1'-acetoxyeugenol acetate were found to be potent modulators and decreased the MIC of ethidium bromide by 64 fold at the concentration of 2.5, 6.25 and 5.0 mg/L respectively. 1'-S-1'-acetoxyeugenol acetate enhanced the accumulation and inhibited the efflux of EtBr in Mycobacterium smegmatis mc² 155 cells.
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Affiliation(s)
- Somendu K Roy
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S. Nagar-160062, Punjab, India
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Kaushik D. Current pharmacological and phytochemical studies of the plant Alpinia galanga. ACTA ACUST UNITED AC 2011; 9:1061-5. [DOI: 10.3736/jcim20111004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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