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Sun Y, Zhang Y, Wang T, Wen L, Xing T, Peng J, Liang Y. Picroside III Ameliorates Colitis in Mice: A Study Based on Colon Transcriptome and Fecal 16S Amplicon Profiling. Chem Biodivers 2023; 20:e202301806. [PMID: 38009836 DOI: 10.1002/cbdv.202301806] [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: 11/14/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
Picroside III (Pic), an iridoid glycoside derived from Picrorhiza scrophulariiflora, exhibits therapeutic potential in mending damage to the intestinal mucosa. This study aimed to explore Pic's regulatory impact on intestinal inflammation and the gut microbiota in mice with dextran sulfate sodium (DSS)-induced colitis. The findings revealed that pretreatment with Pic mitigated the DSS-induced escalation of the disease activity index (DAI), alleviated intestinal damage, and attenuated intestinal inflammation in mice. RNA-seq analysis, complemented by experimental validation, elucidated that Pic significantly hindered Akt phosphorylation in the colon tissues of colitis-afflicted mice. Furthermore, 16S rRNA sequencing demonstrated that Pic pretreatment effectively rectified microbial dysbiosis in colitis mice by elevating the abundance of Lactobacillus murinus and Lactobacillus gasseri. These observations suggest that Pic's efficacy in colitis treatment stems from its inhibition of intestinal inflammation via the suppression of the PI3K-Akt pathway and modulation of gut microbiota. This study contributes novel scientific insights into the potential application of Pic in the management of inflammatory bowel disease (IBD).
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Affiliation(s)
- Yating Sun
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China, 518036
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Yingdi Zhang
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China, 518036
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Tao Wang
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China, 518036
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Liping Wen
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Tianhang Xing
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Jiao Peng
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China, 518036
- School of Pharmaceutical Sciences, Guizhou Medical University, Guizhou, China
| | - Yue Liang
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China, 518036
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Wu P, Chang C, Zhu G, Zhai L, Zhang X, Huan Q, Gao Z, Deng H, Liang Y, Xiao H. Network Pharmacology Study of Bioactive Components and Molecular Mechanisms of the Glycoside Fraction from Picrorhiza scrophulariiflora Against Experimental Colitis. Drug Des Devel Ther 2023; 17:1531-1546. [PMID: 37249930 PMCID: PMC10224697 DOI: 10.2147/dddt.s407339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/29/2023] [Indexed: 05/31/2023] Open
Abstract
Purpose To explore the potential mechanism of glycosidic fraction of Picrorhiza scrophulariiflora Pennell (GPS) extract for the treatment of colitis using UPLC-QTOF-MS analysis, network pharmacology and experimental research. Methods The active components of GPS extract were identified by UPLC-QTOF-MS analysis and extracted their targets from the databases, which was used for network pharmacology analysis. Kyoto Encyclopedia of genes and genomes (KEGG) pathway analysis was performed to discover potential therapeutic mechanisms, and the network pharmacology results were then validated by in vivo and in vitro experiments. Results The results showed that GPS extract significantly alleviated the clinical signs of colitis, including body weight, disease activity index, colon shortening, and colon tissue damage, and inhibited the transcription and production of colonic IL-1β and IL-6 in DSS-induced colitis mice. In vitro, GPS extract also significantly suppressed nitric oxide (NO) production, iNOS expression, IL-1β and IL-6 transcription of LPS-activated RAW 264.7 cells. Network pharmacology integrated with experimental validation identified that GPS extract significantly suppressed Akt, p38, ERK, and JNK phosphorylation in vivo and in vitro, and luteolin, apocynin, caffeic acid, caffeic acid methyl ester, luteoloside, picroside II, aucubin, cinnamic acid, vanillic acid, and sweroside were the main components responsible for the anti-inflammatory effect of GPS. These findings demonstrate that the potential anti-inflammatory effect of GPS extract against colitis is achieved through suppressing PI3K/Akt and MAPK pathways, and that the abovementioned active components mainly exerted its anti-inflammatory effect. Conclusion The therapeutic effect of GPS extract on colitis is related to PI3K/Akt and MAPK pathways, which is a promising remedy for colitis therapy.
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Affiliation(s)
- Peigen Wu
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, People’s Republic of China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, People’s Republic of China
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
| | - Churui Chang
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
| | - Guanglin Zhu
- Traditional Chinese Medicine Hospital of Qijiang, Chongqing, People’s Republic of China
| | - Lixiang Zhai
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region, People’s Republic of China
| | - Xu Zhang
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
| | - Qiuchan Huan
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, People’s Republic of China
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
| | - Zhengxian Gao
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, People’s Republic of China
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
| | - Huan Deng
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, People’s Republic of China
| | - Yue Liang
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Haitao Xiao
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, People’s Republic of China
- School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guizhou, People’s Republic of China
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Balkrishna A, Thakur P, Singh S, Chandra Dev SN, Varshney A. Mechanistic Paradigms of Natural Plant Metabolites as Remedial Candidates for Systemic Lupus Erythromatosus. Cells 2020; 9:cells9041049. [PMID: 32331431 PMCID: PMC7226400 DOI: 10.3390/cells9041049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/20/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disorder involving a dysregulated immune response which ultimately leads to multiple organ failure. Several immunological and cellular checkpoints are available as drug targets. However, the available chemosynthetic drugs such as non-steroidal anti-inflammatory drugs and corticosteroids provide limited therapy with extreme toxicities. Moreover, the disease heterogeneity in SLE is very difficult to manage by a single drug component. Hence, it is imperative to utilize the holistic capabilities of natural plant products as immunomodulators and intracellular signaling regulators, thereby providing an auxiliary option of treatment. Additionally, the herbal drugs also serve as symptomatic relief providers, thereby serving as a prophylactic remedy in case of cerebrovascular, hepatic, nephropathological, hematological, cardiopulmonary, mucocutaneous and musculoskeletal manifestations of SLE. The present review attempts to showcase the current state of knowledge regarding the utility of plant-derived phyto-metabolites with their probable mechanistic roles in treating SLE, by means of targeting the signaling cascade, proinflammatory cytokine production and B–T cell co-stimulation. It is hoped that further preclinical and clinical studies will be embarked upon in order to understand the underlying therapeutic and mechanistic aspects of these medicinal herbs.
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Affiliation(s)
- Acharya Balkrishna
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar, Uttarakhand 249 405, India
- Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar, Uttarakhand 249 405, India
| | - Pallavi Thakur
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar, Uttarakhand 249 405, India
| | - Shivam Singh
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar, Uttarakhand 249 405, India
| | - Swami Narsingh Chandra Dev
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar, Uttarakhand 249 405, India
| | - Anurag Varshney
- Drug Discovery and Development Division, Patanjali Research Institute, NH-58, Haridwar, Uttarakhand 249 405, India
- Department of Allied and Applied Sciences, University of Patanjali, Patanjali Yog Peeth, Roorkee-Haridwar Road, Haridwar, Uttarakhand 249 405, India
- Correspondence: ; Tel.: +91-1334-240008
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Rokaya MB, Parajuli B, Bhatta KP, Timsina B. Neopicrorhiza scrophulariiflora (Pennell) Hong: A comprehensive review of its traditional uses, phytochemistry, pharmacology and safety. JOURNAL OF ETHNOPHARMACOLOGY 2020; 247:112250. [PMID: 31586694 DOI: 10.1016/j.jep.2019.112250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/22/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Neopicrorhiza scrophulariiflora (Pennell) Hong is important medicinal plant that is native to the eastern Himalayas and Hengduan mountains in China. It is also distributed in Nepal, north east India, Bhutan and northern Myanmar. Plant parts are traditionally used against different kinds of diseases and various compounds present in different plant parts are also effective against many diseases. Thus, N. scrophulariiflora has a high potential to maintain human health. AIM OF THE REVIEW Although N. scrophulariiflora is very important and widely studied plant species but there is no comprehensive up-to-date review of published and unpublished literature. So, in the present article we have compiled and critically commented on the botanical characteristics, traditional uses, plant growth and cultivation, micropropagation, conservation status, secondary metabolites, pharmacology and toxicity of the plant. MATERIALS AND METHODS Extensive literature searches both electronic online databases (Google Scholar, Scopus, Springer Link, Web of Science, ScienceDirect, ResearchGate, PubMed, ChemSpider, USPTO, Google patents and Espacenet) and library visits in Nepal were carried out to collect the literature on information published prior to April 2019. RESULTS N. scrophulariiflora was traditionally used for 82 ailments/diseases. There are 124 major phytochemicals extracted from the plant. Several compounds are effective in bioactivity. Pharmacologically, the plant is proved to be anti-atherosclerotic, antidiabetic and anti-inflammatory in-vivo studies, and antimicrobial, antimalarial, antioxidative, hepatoprotective, immunomodulatory and nerve growth factor potentiating from in-vitro studies. Renal improvement activities were confirmed from both in-vivo and in-vitro studies. Toxicological tests and a single clinical trial in human beings have supported the notion that the plant is not poisonous but beneficial for curing wide ranges of diseases. CONCLUSION N. scrophulariiflora is valuable medicinal plant that can serve as promising source of non-harmful and potential medicinal herbal remedies for human beings.
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Affiliation(s)
- Maan B Rokaya
- Institute of Botany, Czech Academy of Sciences, Zámek 1, 252 43, Průhonice, Czech Republic; Department of Biodiversity Research, Global Change Research Centre, Czech Academy of Sciences, Bělidla 4a, 603 00, Brno, Czech Republic.
| | - Bidur Parajuli
- Liverpool International College, Tribhuvan University, New Baneshwor, Kathmandu, Post Box 14313, Nepal
| | - Kuber P Bhatta
- University of Bergen, Department of Biological Sciences, Post Box 7803 5020 Bergen, Norway
| | - Binu Timsina
- Department of Biodiversity Research, Global Change Research Centre, Czech Academy of Sciences, Bělidla 4a, 603 00, Brno, Czech Republic; Department of Institute of Environmental Studies, Faculty of Science, Charles University, Benátská 2, 128 01, Prague, Czech Republic
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Queiroz DPDS, Carollo CA, Kadri MCT, Rizk YS, Araujo VCPD, Monteiro PEDO, Rodrigues PO, Oshiro ET, Matos MDFC, Arruda CCPD. In vivo antileishmanial activity and chemical profile of polar extract from Selaginella sellowii. Mem Inst Oswaldo Cruz 2016; 111:147-54. [PMID: 26910353 PMCID: PMC4804496 DOI: 10.1590/0074-02760150307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 01/25/2016] [Indexed: 12/03/2022] Open
Abstract
The polar hydroethanolic extract from Selaginella sellowii(SSPHE)
has been previously proven active on intracellular amastigotes (in vitro test) and
now was tested on hamsters infected with Leishmania (Leishmania)
amazonensis (in vivo test). SSPHE suppressed a 100% of the parasite load
in the infection site and draining lymph nodes at an intralesional dose of 50
mg/kg/day × 5, which was similar to the results observed in hamsters treated with
N-methylglucamine antimonate (Sb) (28 mg/Kg/day × 5). When orally
administered, SSPHE (50 mg/kg/day × 20) suppressed 99.2% of the parasite load in
infected footpads, while Sb suppressed 98.5%. SSPHE also enhanced the release of
nitric oxide through the intralesional route in comparison to Sb. The chemical
fingerprint of SSPHE by high-performance liquid chromatography with diode-array
detection and tandem mass spectrometry showed the presence of biflavonoids and high
molecular weight phenylpropanoid glycosides. These compounds may have a synergistic
action in vivo. Histopathological study revealed that the intralesional treatment
with SSPHE induced an intense inflammatory infiltrate, composed mainly of mononuclear
cells. The present findings reinforce the potential of this natural product as a
source of future drug candidates for American cutaneous leishmaniasis.
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Affiliation(s)
- Dayane Priscilla de Souza Queiroz
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Carlos Alexandre Carollo
- Laboratório de Produtos Naturais e Espectrometria de Massas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Mônica Cristina Toffoli Kadri
- Laboratório de Biofisiofarmacologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Yasmin Silva Rizk
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Vanessa Carneiro Pereira de Araujo
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Paulo Eduardo de Oliveira Monteiro
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Patrik Oening Rodrigues
- Laboratório de Tecnologia Farmacêutica, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Elisa Teruya Oshiro
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Maria de Fátima Cepa Matos
- Laboratório de Biologia Molecular e Culturas Celulares, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
| | - Carla Cardozo Pinto de Arruda
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brasil
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Del Carmen Juárez-Vázquez M, Josabad Alonso-Castro A, García-Carrancá A. Kaempferitrin induces immunostimulatory effects in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2013; 148:337-340. [PMID: 23588095 DOI: 10.1016/j.jep.2013.03.072] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 03/29/2013] [Accepted: 03/31/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Justicia spicigera is a plant used as immunostimulatory in Mexican traditional medicine. Recently, we showed that Justicia spicigera extracts exerted immunostimulatory effects and the major component of this extract was kaempferitrin (KM). This work shows a correlation between the medical traditional use of Justicia spicigera and kaempferitrin, its active compound. MATERIALS AND METHODS The in vitro immunostimulatory effects of KM were evaluated on the proliferation of murine splenocytes and macrophages, and human peripheral blood mononuclear cells (PBMC). The effects of KM on NO production, lysosomal enzyme activity and neutral red uptake were assayed in murine macrophages RAW 264.7. The effects of KM on the NK cell activity were also assayed. RESULTS KM at 25μM, the highest concentration tested, increased the proliferation of murine macrophages (23%) and splenocytes (17%), and human PBMC (24%) in the absence of lipopolysaccharides (LPS), compared to untreated cells. KM also stimulated the pinocytosis (25%) and lysosomal enzyme activity (57%) in murine macrophages with a similar potency than LPS 1μg/ml. In addition, KM induced the NK cell activity (11%). CONCLUSION KM exerts immunostimulatory effects on immune responses mediated by splenocytes, macrophages, PBMC and NK cells.
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In vitro immunomodulatory effects of an oleanolic acid-enriched extract of Ligustrum lucidum fruit (Ligustrum lucidum supercritical CO2 extract) on piglet immunocytes. Int Immunopharmacol 2012; 14:758-63. [PMID: 23099145 DOI: 10.1016/j.intimp.2012.10.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/18/2012] [Accepted: 10/09/2012] [Indexed: 02/08/2023]
Abstract
This study was conducted to evaluate the in vitro immunomodulatory effects of supercritical CO(2)Ligustrum lucidum extract (LLE) on the immune cells of piglets. The results showed that the LLE enhanced the proliferative activity of piglet blood lymphocytes and up-regulated the CD4(+) CD8(+) and CD4(+) CD8(-) cell populations. The LLE also regulated the expression of Th1- and Th2-related cytokines; elevated the levels of IL-2, IFN-γ and TNF-α, which were produced by Th1 lymphocytes; and decreased the levels of IL-4 and IL-10, which were produced by Th2 lymphocytes. Furthermore, the LLE stimulated the NO secretion of lymphocytes. These results indicated that LLE might have potential immunomodulatory effects on the immune system of piglets and provided scientific and experimental foundations for the development of a new kind of LLE immune adjuvant in the pig production.
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More SV, Koppula S, Kim BW, Choi DK. The role of bioactive compounds on the promotion of neurite outgrowth. Molecules 2012; 17:6728-53. [PMID: 22664464 PMCID: PMC6268652 DOI: 10.3390/molecules17066728] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 05/01/2012] [Accepted: 05/28/2012] [Indexed: 12/18/2022] Open
Abstract
Neurite loss is one of the cardinal features of neuronal injury. Apart from neuroprotection, reorganization of the lost neuronal network in the injured brain is necessary for the restoration of normal physiological functions. Neuritogenic activity of endogenous molecules in the brain such as nerve growth factor is well documented and supported by scientific studies which show innumerable compounds having neurite outgrowth activity from natural sources. Since the damaged brain lacks the reconstructive capacity, more efforts in research are focused on the identification of compounds that promote the reformation of neuronal networks. An abundancy of natural resources along with the corresponding activity profiles have shown promising results in the field of neuroscience. Recently, importance has also been placed on understanding neurite formation by natural products in relation to neuronal injury. Arrays of natural herbal products having plentiful active constituents have been found to enhance neurite outgrowth. They act synergistically with neurotrophic factors to promote neuritogenesis in the diseased brain. Therefore use of natural products for neuroregeneration provides new insights in drug development for treating neuronal injury. In this study, various compounds from natural sources with potential neurite outgrowth activity are reviewed in experimental models.
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Affiliation(s)
| | | | | | - Dong-Kug Choi
- Department of Biotechnology, Research Institute for Biomedical and Health Science, Konkuk University, Chungju 380-701, Korea
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Kostoff RN. Literature-related discovery: Potential treatments and preventatives for SARS. TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE 2011; 78:1164-1173. [PMID: 32287410 PMCID: PMC7118796 DOI: 10.1016/j.techfore.2011.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 02/26/2011] [Accepted: 03/26/2011] [Indexed: 05/06/2023]
Abstract
Literature-related discovery (LRD) is the linking of two or more previously disjoint concepts in order to produce novel, interesting, plausible, and intelligible connections (i.e., potential discovery). LRD has been used to identify potential treatments or preventative actions for challenging medical problems, among myriad other applications. Severe acute respiratory syndrome (SARS) was the first pandemic of the 21st century. SARS was eventually controlled through increased hygienic measures (e.g., face mask protection, frequent hand washing, living quarter disinfection), travel restrictions, and quarantine. According to recent reviews of SARS, none of the drugs that were used during the pandemic worked. For the present paper, SARS was selected as the first application of LRD to an infectious disease. The main goal of this research was to identify non-drug non-surgical treatments that would 1) prevent the occurrence, or 2) reduce the progression rate, or 3) stop/reverse the progression of SARS. The MeSH taxonomy of Medline was used to restrict potential discoveries to selected semantic classes, and to identify potential discoveries efficiently. To enhance the volume of potential discovery, databases were used in addition to Medline. These included the Science Citation Index (SCI) and, in contrast to previous work, a full text database. Because of the richness of the full text, 'surgical' queries were developed that targeted the exact types of potential discovery of interest while eliminating clutter more efficiently.
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Lee JY, Lee JG, Sim SS, Whang WK, Kim CJ. Anti-asthmatic effects of phenylpropanoid glycosides from Clerodendron trichotomum leaves and Rumex gmelini herbes in conscious guinea-pigs challenged with aerosolized ovalbumin. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2011; 18:134-142. [PMID: 20739157 DOI: 10.1016/j.phymed.2010.06.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 04/09/2010] [Accepted: 06/25/2010] [Indexed: 05/29/2023]
Abstract
Clerodendron trichotomum leaves and Rumex aquatica herbs are used as a folk medicine for the treatment of inflammatory diseases, but their active ingredients are not known until now. We isolated caffeic acid and phenylpropanoid glycosides, 1-O-caffeoyl glycoside and acteoside [β-(3',4'-dihydroxyphenyl) ethyl-O-α-l-rhamnopyranosyl(1→3)-β-d-(4-O-caffeoyl)-glucopyranoside] from their ethylacetate fractions, respectively, and evaluated their anti-asthmatic effects on the aerosolized ovalbumin (OA) challenge in the OA-sensitized guinea-pigs measuring the specific airway resistance (sRaw) during the immediate-phase response (IAR) and late-phase response (LAR), and also measured recruitment of leukocytes and chemical mediators on the bronchoalveolar lavage fluids (BALF) in LAR, as well as histopathological survey. Acteoside and 1-O-caffeoyl glycoside (25mg/kg) significantly (P<0.05) inhibited sRaw by 32.14 and 26.79% in IAR, and by 55.88% and 52.94% in LAR, respectively, whereas caffeic acid (25mg/kg) inhibited sRaw by 30.36% in IAR and 44.12% in LAR, compared to control, but with less effective than dexamethasone, disodium cromoglycate, and salbutamol, respectively. In addition, phenylpropanoid glycosides (25mg/kg) significantly inhibited the recruitments of leukocytes, particularly neutrophils and eosinophils into lung, Furthermore, 1-O-caffeoyl glycoside, acteoside and caffeic acid significantly (P<0.05) inhibited protein content at a dose of 25mg/kg, and histamine content and PLA(2) activity at a dose of 50mg/kg, in BALF. Acteoside had more active than caffeic acid and 1-O-caffeoyl glycoside. However, their anti-asthmatic effects were less than the reference drugs. These results indicated that caffeic acid and its glycosides (25mg/kg) have anti-asthmatic effect as the same manner with dexamethasone and disodium cromoglycate.
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Affiliation(s)
- Ji Yun Lee
- Division of Pathophysiology and Pharmacology, College of Pharmacy, Chung-Ang University, 221 Huksuk-dong, Dongjak-Ku, Seoul 156-756, Republic of Korea
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