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Loo YC, Tsai YH, Chen H, Hsieh HP, Chen YC, Chen HE, Lin ZH, Huang HT, Liu IM, Liaw CC, Chang FR. Quality and production enhancement of fish mint, Houttuynia cordata Thunb., cultivated in a hydroponic planting system with designed plant growth-promoting additives. Heliyon 2024; 10:e28755. [PMID: 38586372 PMCID: PMC10998095 DOI: 10.1016/j.heliyon.2024.e28755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 02/28/2024] [Accepted: 03/24/2024] [Indexed: 04/09/2024] Open
Abstract
Fish mint, Houttuynia cordata Thunb. (HCT) is an edible vegetable that has also been used in traditional folk medicines. As both a medicinal herb and a dietary source, HCT has been clinically proven to be a pivotal ingredient in formulas administered to alleviate COVID-19 symptoms. With the increasing market demand for imported materials, ensuring the quality consistency of HCT becomes a significant concern. In this study, the growing time for hydroponically-cultivated HCT with seaweed extract and amino acids added (HCTW) reduced by half compared to conventional soil-cultivated HCT (HCTS). Key quantified components in HCTW, flavonoid glycosides and caffeoylquinic acid derivatives, exhibited a 143% increase over HCTS. These crucial constituents were responsible for possessing antioxidant activity (IC50 < 25 μg/mL) and anti-nitrite oxide production (IC50 < 20 μg/mL). An economically-designed hydroponic system with appropriate additives is proposed to replace HCTS with improvements of growth time, overall production yields, and bioactive qualities.
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Affiliation(s)
- Yen Chi Loo
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
| | - Yi-Hong Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County, 907101, Taiwan
| | - Hsieh Chen
- Graduate Institute of Science Education and Environment Education, College of Science, National Kaohsiung Normal University, Kaohsiung, 807, Taiwan
- Department of Research and Development, We-Win Bio-Medical Co., Ltd., Kaohsiung, 807, Taiwan
| | - Hui-Ping Hsieh
- Department of Research and Development, We-Win Bio-Medical Co., Ltd., Kaohsiung, 807, Taiwan
| | - Yen-Chang Chen
- Department of Research and Development, We-Win Bio-Medical Co., Ltd., Kaohsiung, 807, Taiwan
| | - Hsueh-Er Chen
- Department of Research and Development, We-Win Bio-Medical Co., Ltd., Kaohsiung, 807, Taiwan
| | - Zhi-Hu Lin
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan
- Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, 112026, Taiwan
| | - Hung-Tse Huang
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan
| | - I-Min Liu
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County, 907101, Taiwan
| | - Chia-Ching Liaw
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, 600355, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807377, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 804201, Taiwan
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Lin SY, Chang CL, Liou KT, Kao YK, Wang YH, Chang CC, Kuo TBJ, Huang HT, Yang CCH, Liaw CC, Shen YC. The protective role of Achyranthes aspera extract against cisplatin-induced nephrotoxicity by alleviating oxidative stress, inflammation, and PANoptosis. J Ethnopharmacol 2024; 319:117097. [PMID: 37648176 DOI: 10.1016/j.jep.2023.117097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/19/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Achyranthes aspera, a widely recognized medicinal plant, is used in various cultures for treating different ailments, including renal dysfunction; however, there is a lack of comprehensive understanding of its protective effects and the underlying signaling networks involved. AIM OF THE STUDY This study aimed to investigate the molecular mechanisms of the action of A. aspera by employing an integrative approach including functional and tissue imaging as well as comprehensive genomics analysis. MATERIALS AND METHODS Cisplatin-induced nephrotoxicity is a well-established animal model for acute kidney injury (AKI). In this study, we investigated the protective effects and underlying mechanisms of the action of A. aspera water-soluble extract (AAW) on a murine model of cisplatin-induced AKI. The evaluation includes measurements of blood urea nitrogen (BUN) and serum creatinine (SCr) levels, histology examination, and transcriptome analysis using RNA sequencing. RESULTS In male ICR mice, oral administration of AAW at doses of 0.5-1.0 g/kg significantly reduced cisplatin-induced nephrotoxicity. This effect included the amelioration of tubular injury, renal fibrosis, and the lowering of BUN and SCr levels. AAW also effectively decreased oxidative markers, such as malondialdehyde (MDA) and nitrotyrosine (NT), along with inflammation markers, including COX-2, iNOS, NLRP3, and pP65NFκB. Moreover, AAW administration induced a dose-dependent increase in the expression of two protective factors, Nrf2 and BcL2, and suppressed apoptosis, as evidenced by reduced levels of truncated caspase 3 (t-Casp3). To explore the underlying molecular mechanisms and signaling networks, next-generation sequencing (NGS) analysis was employed. The results revealed that AAW mitigated apoptosis, necroptosis, and PANoptosis pathways by inhibiting inflammation signaling pathways, such as the TNFα-, NFκB-, NETs-, and leukocyte transendothelial migration pathways. Additionally, AAW was found to enhance protective signaling pathways, including the cGMP/PKG-, cAMP-, AMPK-, and mTOR-dependent activation of autophagy and mitophagy pathways. The primary bioactive compound found in AAW was identified as 20-hydroxyecdysone (0.36%). CONCLUSION Our study demonstrates that AAW reduces cisplatin-induced nephrotoxicity. The protective effects of AAW are attributed to its modulation of multiple molecular signaling networks. Specifically, AAW downregulates genes and signaling pathways associated with oxidative stress and endoplasmic reticulum (ER) stress, inflammation, and PANoptosis. Simultaneously, it upregulates genes and signaling pathways associated with cell survival, including autophagy and mitophagy pathways.
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Affiliation(s)
- Song-Yi Lin
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei City, 112304, Taiwan.
| | - Chia-Lin Chang
- Department of Senior Citizen Welfare and Long-term Care Business, HungKuang University, Taichung City, 43302, Taiwan; Department of Animal Healthcare, HungKuang University, Taichung City, 43302, Taiwan; Department of Biotechnology, HungKuang University, Taichung City, 43302, Taiwan.
| | - Kuo-Tong Liou
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei City, 112304, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, 25245, Taiwan; Department of Chinese Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114202, Taiwan.
| | - Yao-Kai Kao
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei City, 112304, Taiwan.
| | - Yea-Hwey Wang
- National Taipei University of Nursing and Health Science, Taipei City, 112304, Taiwan.
| | - Cher-Chia Chang
- Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, 112304, Taiwan.
| | - Terry B J Kuo
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei City, 112304, Taiwan.
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei City, 112304, Taiwan.
| | - Cheryl C H Yang
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei City, 112304, Taiwan.
| | - Chia-Ching Liaw
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei City, 112304, Taiwan.
| | - Yuh-Chiang Shen
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei City, 112304, Taiwan; National Taipei University of Nursing and Health Science, Taipei City, 112304, Taiwan.
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Liu SH, Huang HT, Lo IW, Lin YC, Liao GY, Chao CH, Huang HC, Chang FR, Li TL, Shen YC, Liaw CC. Potential natural product 3,4-seco-schitriterpenoids from Kadsura japonica L. as anti-neuroinflammatory agents. Bioorg Chem 2023; 141:106843. [PMID: 37696148 DOI: 10.1016/j.bioorg.2023.106843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/19/2023] [Accepted: 09/05/2023] [Indexed: 09/13/2023]
Abstract
In the present study, the undescribed schitriterpenoids, kadsujanonols A-I (1-9), and eleven reported compounds (10-20) were isolated from K. japonica L. vines. Their structures of 3,4-seco-schitriterpenoids were elucidated mainly by spectroscopic analyses including 1H-, 13C-, and 2D-NMR, IR, HRESIMS spectra. The spatial configurations were determined by the single-crystal X-ray diffraction analysis of kadsujapnonol A (1), 15, 17, and 18, CD data and computational analysis. Furthermore, all isolates were evaluated for the anti-neuroinflammatory activity on LPS-stimulated NO production in BV2 microglial cells and compounds 2, 4, 5, 7, 9, 11, 13-16, and 18 exposed better or comparable suppression abilities than PDTC. Among them, kadlongilactone B (14) showed the best significant inhibiting ability (IC50 = 0.87 μg/mL) and the effect is through the attenuation of the inflammatory transcription factor p65NF-κB. Preliminary structure-activity relationship revealed that δ-lactone at the side chain and 7-member lactone at C-3/C-4, and 3,4:9,10 ring opening are important.
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Affiliation(s)
- Shu-Hsiang Liu
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 112303, Taiwan
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, MOWH, Taipei 112026, Taiwan
| | - I-Wen Lo
- National Research Institute of Chinese Medicine, MOWH, Taipei 112026, Taiwan; Genomics Research Center, Academia Sinica, Taipei 115201, Taiwan
| | - Yu-Chi Lin
- National Research Institute of Chinese Medicine, MOWH, Taipei 112026, Taiwan
| | - Geng-You Liao
- Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Chih-Hua Chao
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404332, Taiwan; School of Pharmacy, China Medical University, Taichung 406040, Taiwan
| | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, 404333, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807378, Taiwan
| | - Tsung-Lin Li
- Genomics Research Center, Academia Sinica, Taipei 115201, Taiwan
| | - Yuh-Chiang Shen
- School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 112303, Taiwan; National Research Institute of Chinese Medicine, MOWH, Taipei 112026, Taiwan.
| | - Chia-Ching Liaw
- National Research Institute of Chinese Medicine, MOWH, Taipei 112026, Taiwan; Department of Biochemical Science and Technology, National Chiayi University, Chiayi 600355, Taiwan.
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Chang SS, Huang HT, Wei WC, Lo IW, Lin YC, Chao CH, Liao GY, Shen YC, Chen JJ, Li TL, Lin LT, Tai CJ, Kuo YH, Liaw CC. Anti-inflammatory effect of euphane- and tirucallane-type triterpenes isolated from the traditional herb Euphorbia neriifolia L. Front Chem 2023; 11:1223335. [PMID: 37426336 PMCID: PMC10326319 DOI: 10.3389/fchem.2023.1223335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023] Open
Abstract
The Euphorbiaceae plant Euphorbia neriifolia L. is distributed widely in India, Thailand, Southeastern China, and Taiwan and used as a carminative and expectorant to treat several inflammation-related diseases, such as gonorrhoea, asthma, and cancer. In the course of our search for potential anti-inflammatory agents from the titled plant, 11 triterpenes from the stem of E. neriifolia were isolated and reported in our previous endeavor. Given its rich abundance in triterpenoids, the ethanolic extract in this follow-up exploration has led to the isolation of additional eight triterpenes, including six new euphanes-neritriterpenols H and J-N (1 and 3-7)-one new tirucallane, neritriterpenol I (2), and a known compound, 11-oxo-kansenonol (8). Their chemical structures were elucidated on the basis of spectroscopic data, including 1D- and 2D NMR, and HRESIMS spectra. The absolute stereochemistry of neritriterpenols was determined by single-crystal X-ray diffraction analysis, ICD spectra, and DP4+ NMR data calculations. Compounds 1-8 were also evaluated for their anti-inflammatory activity by using lipopolysaccharide (LPS)-stimulated IL-6 and TNF-α on RAW 264.7 macrophage cells. Intriguingly, the euphane-type triterpenes (1 and 3-8) showed an inhibitory effect on LPS-induced IL-6 but not on TNF-α, while tirucallane-type triterpene 2 showed strong inhibition on both IL-6 and TNF-α.
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Affiliation(s)
- Stephen S. Chang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Wen-Chi Wei
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - I-Wen Lo
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Chi Lin
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Chih-Hua Chao
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Geng-You Liao
- Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yuh-Chiang Shen
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
| | - Jih-Jung Chen
- Department of Pharmacy, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tsung-Lin Li
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Liang-Tzung Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chen-Jei Tai
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Yao-Haur Kuo
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chia-Ching Liaw
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan
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Nguyen VB, Wang SL, Phan TQ, Pham THT, Huang HT, Liaw CC, Nguyen AD. Screening and Elucidation of Chemical Structures of Novel Mammalian α-Glucosidase Inhibitors Targeting Anti-Diabetes Drug from Herbals Used by E De Ethnic Tribe in Vietnam. Pharmaceuticals (Basel) 2023; 16:ph16050756. [PMID: 37242539 DOI: 10.3390/ph16050756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/25/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Among ten extracts of indigenous medicinal plants, the MeOH extract of Terminalia triptera Stapf. (TTS) showed the most efficient mammalian α-glucosidase inhibition for the first time. The data of screening bioactive parts used indicated that the TTS trunk bark and leaves extracts demonstrated comparable and higher effects compared to acarbose, a commercial anti-diabetic drug, with half-maximal inhibitory concentration (IC50) values of 181, 331, and 309 µg/mL, respectively. Further bioassay-guided purification led to the isolation of three active compounds from the TTS trunk bark extract and identified as (-)-epicatechin (1), eschweilenol C (2), and gallic acid (3). Of these, compounds 1 and 2 were determined as novel and potent mammalian α-glucosidase inhibitors. The virtual study indicated that these compounds bind to α-glucosidase (Q6P7A9) with acceptable RMSD values (1.16-1.56 Å) and good binding energy (DS values in the range of -11.4 to -12.8 kcal/mol) by interacting with various prominent amino acids to generate five and six linkages, respectively. The data of Lipinski's rule of five and absorption, distribution, metabolism, excretion and toxicity (ADMET)-based pharmacokinetics and pharmacology revealed that these purified compounds possess anti-diabetic drug properties, and the compounds are almost not toxic for human use. Thus, the findings of this work suggested that (-)-epicatechin and eschweilenol C are novel potential mammalian α-glucosidase inhibitor candidates for type 2 diabetes treatment.
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Affiliation(s)
- Van Bon Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan
| | - Tu Quy Phan
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - Thi Huyen Thoa Pham
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 11221, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 11221, Taiwan
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
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Huang HT, Lo IW, Lin YC, Geng-You L, Lin YS, Zhang LJ, Li TL, Liaw CC, Kuo YH. Kaguacidine A: a novel spirohydantoin-containing cucurbitane glycoside from vines of Momordica charantia L. Nat Prod Res 2023:1-8. [PMID: 36606546 DOI: 10.1080/14786419.2022.2164278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 12/16/2022] [Accepted: 12/22/2022] [Indexed: 01/07/2023]
Abstract
The spirohydantoin-containing cucurbitane-type triterpenoid, kaguacidine A (1), was isolated and purified from 95% ethanol extract of vines of Momordica charantia L. (Cucurbitaceae). Its unprecedented chemical structure, a spirohydantoin substituent at C-23 of cucurbitane, was elucidated by extensive spectroscopic analyses, including HRESIMS, IR, optical rotation, 1 D- and 2 D-NMR spectra. The possible biosynthetic pathway is deduced and may be attributed to the metabolic activity of microbial symbionts in M. charantia L. Compound 1 was evaluated for anti-inflammatory activity against LPS-induced NO production in RAW 264.7 cells and anti-proliferative activity against four cancer cell lines, including HEp-2, MCF-7, Hep-G2, and WiDr. Compound 1 showed moderate anti-inflammatory activity with an IC50 value of 18.5 ± 0.4 μg/mL and weak anti-proliferative activity against MCF-7, HEp-2, Hep-G2, and WiDr with IC50 values of >40, 33.8 ± 0.6, 31.0 ± 0.7, and 27.0 ± 0.7 μM, respectively.
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Affiliation(s)
- Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - I-Wen Lo
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Chi Lin
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Liao Geng-You
- School of Medicine, Institute of Physiology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yun-Sheng Lin
- Department of Biological Science and Technology, Meiho University, Pingtung, Taiwan
| | - Li-Jie Zhang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Tsung-Lin Li
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
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7
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Huang LL, Ma XM, Huang HT, Xie ZQ, Gou JB, Yang YL, Wang X, Zhang W, You WY, Tan JB, Xu LF, Feng GW, Zhu T, Wang Y. [Immunogenicity of group A+C meningococcal polysaccharide conjugate vaccine in infants: A phase Ⅲ clinical trial study]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1728-1733. [PMID: 36536558 DOI: 10.3760/cma.j.cn112150-20211206-01124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Objective: To evaluate the immunogenicity of group A+C meningococcal polysaccharide conjugate vaccine in infants under 2 years old. Methods: From March 2017 to June 2018, 1 932 healthy infants in Biyang County, Henan Province, who were not vaccinated with meningococcal meningitis vaccine and whose axillary temperature was ≤37.0 ℃, were recruited as participants. The 3 months and 6-11 months old infants were allocated to the experiment group and the control group in a ratio of 1∶1. Infants aged 12-23 months were allocated to the 1-dose group, the 2-dose group and the control group in a ratio of 1∶1∶1, with 276 infants in each group. The infants in the experiment group were intramuscularly injected with freeze-dried group A+C meningococcal polysaccharide conjugate vaccine to be evaluated, and infants in the control group received intramuscular injection of commercially available freeze-dried group A+C meningococcal conjugate vaccine. The venous blood of infants was collected 30 days before the first dose and after the last dose of inoculation, and the antibody seroconversion of each group was determined and compared. Results: The completion rate of immunogenicity study was 95.2% (1 839/1 932). Before inoculation, there was no statistical difference in the geometric mean titer and positive rate of group A+C antibodies between the experiment group and the control group in 3 months and 6-11 months old infants (all P values >0.05). The geometric mean titers and positive rate of group A antibodies in the 1-dose group were higher than those in the control group (all P values <0.05), but there was no statistical difference between the 2-dose group and the control group (all P values >0.05) in infants aged 12-23 months. After inoculation, the differences (95%CI) in the positive conversion rate of group A+C antibodies between the experiment group and the control group were -0.12% (-6.01%-5.77%) and 0.82% (-4.23%-5.86%) in the 3 months old infants. At the age of 6-11 months, the differences were 6.75% (1.71%-11.79%) and -4.32% (-8.73%-0.08%), respectively. At the age of 12-23 months, the differences were 1.02% (-3.80%-5.83%) and -4.40% (-7.79%- -1.01%) in the 2-dose group and -7.22% (-12.90%- -1.54%) and -18.61% (-23.75%- -13.46%) in the 1-dose group, respectively. The geometric mean titers of group A+C antibodies in the 3 months old infants were 48.50 and 63.12, respectively, which had no significant difference from the control group (43.02 and 57.99, respectively) (both P values <0.05). The geometric mean titers of group A+C antibodies in the 6-11 months and 12-23 months old infants were 84.09 and 92.51 (2-dose group), which were higher than those in the corresponding control group (43.10 and 61.83, respectively) (all P values <0.001). Conclusion: Group A+C meningococcal conjugate vaccine has good immunogenicity in infants under 2 years old.
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Affiliation(s)
- L L Huang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - X M Ma
- CanSino Biologics Inc., Tianjin 300457, China
| | - H T Huang
- CanSino Biologics Inc., Tianjin 300457, China
| | - Z Q Xie
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - J B Gou
- CanSino Biologics Inc., Tianjin 300457, China
| | - Y L Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - X Wang
- CanSino Biologics Inc., Tianjin 300457, China
| | - W Zhang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - W Y You
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - J B Tan
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - L F Xu
- CanSino Biologics Inc., Tianjin 300457, China
| | - G W Feng
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - T Zhu
- CanSino Biologics Inc., Tianjin 300457, China
| | - Yanxia Wang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
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Huang HT, Lo IW, Liao GY, Lin YC, Shen YC, Huang HC, Li TL, Lee KT, Kuo YH, Liaw CC. Anti-inflammatory sesquiterpene and triterpene acids from Mesona procumbens Hemsley. Front Chem 2022; 10:1003356. [PMID: 36186589 PMCID: PMC9520569 DOI: 10.3389/fchem.2022.1003356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Mesonaprocumbens Hemsley is a plant conventionally processed to provide popular food materials and herbal medicines in Asia. In this study, six triterpene acids, including five new ones (mesonaic acids D-H, 1–5), and one proximadiol-type sesquiterpene (7) were isolated from the methanolic extract of the air-dried M. procumbens. Chemical structures of 1‒7 were established by spectroscopic methods, especially 2D NMR techniques (1H–1H COSY, HSQC, HMBC, and NOESY) and HRESIMS. Concerning their biological activities, compounds 1, 2, 6, and 7 were examined manifesting high inhibition toward the pro-inflammatory NO production with EC50 values ranging from 12.88 to 21.21 µM, outrunning the positive control quercetin (24.12 µM). The mesoeudesmol B (7) identified from M. procumbens is the very first example, which exhibited high anti-inflammatory activity diminishing the level of the lipopolysaccharide-induced NO in RAW264.7 macrophage cells, thereby suppressing the secretion of pro-inflammatory cytokines TNF-α and IL-6 and the level of two critical downstream inflammatory mediators iNOS and COX-2.
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9
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Chang SS, Huang HT, Lin YC, Chao CH, Liao GY, Lin ZH, Huang HC, Chun-Ling Kuo J, Liaw CC, Tai CJ, Kuo YH. Neritriterpenols A-G, euphane and tirucallane triterpenes from Euphorbia neriifolia L. and their bioactivity. Phytochemistry 2022; 199:113199. [PMID: 35427651 DOI: 10.1016/j.phytochem.2022.113199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Euphorbia neriifolia L. is widely distributed in India, Thailand, and China and has been used to treat diseases such as rotten sores and asthma as well as for its antidiabetic and anticancer effects. In this study, seven undescribed triterpenes, including six euphanes, neritriterpenols A-B and D-G, and a tirucallane, neritriterpenol C, together with four known triterpenes, were isolated from ethanolic extracts of E. neriifolia stems. Their structures with absolute configurations were determined through detailed spectroscopic data, including 1D and 2D NMR data analyses, single-crystal X-ray diffraction analysis, ECD spectra, and DP4+ NMR data calculations as well as Mo2(OAc)4-induced ECD analysis. Furthermore, preliminarily evaluation of the anti-inflammatory and anti-proliferative effects of the isolated triterpenes leads to the structure-activity relationship (SAR) studies implying that the unsaturated functional group at the end of the C17 side chain on euphane-type triterpenes may be correlated with the increase of anti-inflammatory and anti-proliferative activities.
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Affiliation(s)
- Stephen S Chang
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan; Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, 110301, Taiwan
| | - Hung-Tse Huang
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan
| | - Yu-Chi Lin
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan
| | - Chih-Hua Chao
- School of Pharmacy, China Medical University, Taichung, 406040, Taiwan; Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, 404332, Taiwan
| | - Geng-You Liao
- Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Zhi-Hu Lin
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan; Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, 404333, Taiwan; Master Program for Food and Drug Safety, China Medical University, Taichung, 406040, Taiwan
| | - Jenny Chun-Ling Kuo
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Tao-Yuan, 333, Taiwan
| | - Chia-Ching Liaw
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan; Department of Biochemical Science and Technology, National Chiayi University, Chiayi, 600355, Taiwan.
| | - Chen-Jei Tai
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, 110301, Taiwan; Department of Chinese Medicine, Taipei Medical University Hospital, Taipei, 110301, Taiwan; Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, 110301, Taiwan.
| | - Yao-Haur Kuo
- Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan; Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, 110301, Taiwan; Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, 404333, Taiwan.
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10
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Liaw CC, Lo IW, Lin YC, Huang HT, Zhang LJ, Hsiao PC, Li TL, Kuo YH. Four cucurbitane glycosides taimordisins A–D with novel furopyranone skeletons isolated from the fruits of Momordica charantia. Food Chem X 2022; 14:100286. [PMID: 35330883 PMCID: PMC8938282 DOI: 10.1016/j.fochx.2022.100286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 10/31/2022] Open
Abstract
Four new cucurbitane-type triterpenoids glycosides were isolated from the fresh fruit of Momordica charantia and determined by NMR, HRESIMS, and biosynthesis. Taimordisins A and B possess rare bicyclic-fused and trifuso-centro-fused ring systems at side chain of the cucurbitane-type triterpenoids at the first time. Taimordisins A-D showed the inhibition of NO production by LPS-stimulated in RAW264.7 macrophage cells.
Four novel triterpene glycosides, taimordisins A–D (1–4), were discovered from fresh fruits of Taiwanese Momordica charantia. The chemical framework and relative stereochemistry of these four natural products were isolated, purified, and determined by using various separation and spectroscopy techniques. Each of them features a unique bicyclic-fused or trifuso-centro-fused ring system. Notably, 1 and 2 are cucurbitane-based compounds possessing a new C-24 and C-2″ carbon–carbon linkage with 5-hydroxy-2-(hydroxymethyl)tetrahydro-4H-pyran-4-one and 6-(hydroxymethyl)tetrahydro-4H-pyran-3,4,4-triol units, respectively, and represented an unprecedented molecular skeleton. In terms of biosynthesis, they all originate from a common precursor 3-hydroxycucurbita-5,24-dien-19-al-7,23-di-O-β-glucopyranoside. Of two sugar moieties, the one at 23-O-β-glucopyranoside grants each individual congener uniqueness likely through microbial symbiont-mediated intramolecular transformation into two major types of furo[2,3-b]pyranone and furo[3,2-c]pyranone derivatives. These new products possess desirable anti-inflammatory biological activities in addition to being generally regarded as safe.
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11
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Liaw CC, Huang HT, Liu HK, Lin YC, Zhang LJ, Wei WC, Shen CC, Wu CL, Huang CY, Kuo YH. Cucurbitane-type triterpenoids from the vines of Momordica charantia and their anti-inflammatory, cytotoxic, and antidiabetic activity. Phytochemistry 2022; 195:113026. [PMID: 34890886 DOI: 10.1016/j.phytochem.2021.113026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
Phytochemical investigation of the ethanol extract from wild Momordica charantia vines has resulted in isolation of seven cucurbitane-type triterpenoids, including six undescribed compounds, kuguaovins H‒M, and the known compound, momordicoside K. The structures of the isolated compounds were elucidated on the basis of spectroscopic analyses, including 1D and 2D NMR, and MS experiments. The chemical structure of momordicoside K was determined for the first time by X-ray crystallographic analysis and its absolute configuration assigned. The cytotoxicity against four human tumor cell lines and anti-inflammatory activities on LPS-stimulated RAW264.7 macrophages were evaluated. Of the isolates, kaguaovin L exhibited potential cytotoxicity against MCF-7, HEp-2, Hep-G2, and WiDr cancer cell lines and showed moderate anti-NO production activity. In addition, kuguaovins H and J also showed the stimulatory effect of GLP-1 secretion on the murine intestinal secretin tumor cell line (STC-1).
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Affiliation(s)
- Chia-Ching Liaw
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan; Department of Biochemical Science and Technology, National Chiayi University, Chiayi, 60004, Taiwan
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan; Department of Biochemical Science & Technology, National Taiwan University, Taipei, 10617, Taiwan
| | - Hui-Kang Liu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan
| | - Yu-Chi Lin
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan; Department of Marine Biotechnology and Resources, National Sun Ya-sen University, Kaohsiung, 80424, Taiwan
| | - Li-Jie Zhang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan
| | - Wen-Chi Wei
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan
| | - Chien-Chang Shen
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan
| | - Chia-Lun Wu
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan; Department of Food Science, National Ilan University, Ilan, 26047, Taiwan
| | - Chung-Yi Huang
- Department of Food Science, National Ilan University, Ilan, 26047, Taiwan.
| | - Yao-Haur Kuo
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, 11201, Taiwan; Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.
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12
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Lin YC, Wu CY, Huang HT, Lu MK, Hu WS, Lee KT. Bacillus subtilis natto Derivatives Inhibit Enterococcal Biofilm Formation via Restructuring of the Cell Envelope. Front Microbiol 2021; 12:785351. [PMID: 34956152 PMCID: PMC8695906 DOI: 10.3389/fmicb.2021.785351] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/18/2021] [Indexed: 01/15/2023] Open
Abstract
Enterococcus faecalis is considered a leading cause of hospital-acquired infections. Treatment of these infections has become a major challenge for clinicians because some E. faecalis strains are resistant to multiple clinically used antibiotics. Moreover, the presence of E. faecalis biofilms can make infections with E. faecalis more difficult to eradicate with current antibiotic therapies. Thus, our aim in this study was to investigate the effects of probiotic derivatives against E. faecalis biofilm formation. Bacillus subtilis natto is a probiotic strain isolated from Japanese fermented soybean foods, and its culture fluid potently inhibited adherence to Caco-2 cell monolayers, aggregation, and biofilm production without inhibiting the growth of E. faecalis. An apparent decrease in the thickness of E. faecalis biofilms was observed through confocal laser scanning microscopy. In addition, exopolysaccharide synthesis in E. faecalis biofilms was reduced by B. subtilis natto culture fluid treatment. Carbohydrate composition analysis also showed that carbohydrates in the E. faecalis cell envelope were restructured. Furthermore, transcriptome sequencing revealed that the culture fluid of B. subtilis natto downregulated the transcription of genes involved in the WalK/WalR two-component system, peptidoglycan biosynthesis and membrane glycolipid biosynthesis, which are all crucial for E. faecalis cell envelope synthesis and biofilm formation. Collectively, our work shows that some derivatives present in the culture fluid of B. subtilis natto may be useful for controlling E. faecalis biofilms.
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Affiliation(s)
- Yu-Chieh Lin
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Chun-Yi Wu
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Hung-Tse Huang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan.,Ministry of Health and Welfare, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Mei-Kuang Lu
- Ministry of Health and Welfare, National Research Institute of Chinese Medicine, Taipei, Taiwan.,Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | - Wei-Shou Hu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, United States
| | - Kung-Ta Lee
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
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13
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Shih MK, Tain YL, Cheng CM, Hsu CN, Chen YW, Huang HT, Chang CI, Hou CY. Separation and Identification of Resveratrol Butyrate Ester Complexes and Their Bioactivity in HepG2 Cell Models. Int J Mol Sci 2021; 22:ijms222413539. [PMID: 34948341 PMCID: PMC8703675 DOI: 10.3390/ijms222413539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/11/2021] [Accepted: 12/15/2021] [Indexed: 01/30/2023] Open
Abstract
Resveratrol butyrate ester (RBE) complexes have demonstrated higher antioxidant capacity and anti-fat accumulation activity in previous studies. In this study, silica gel, high-performance liquid chromatography, and 1H nuclear magnetic resonance were used for separation and identification of RBE complex components. With the exception of resveratrol, five different structures of ester derivatives were separated from silica gel: 3,4′-di-O-butanoylresveratrol (ED2, 18.8%), 3-O-butanoylresveratrol (ED4, 35.7%), 4′-O-butanoylresveratrol (ED5, 4.4%), 3,5,4′-tri-O-butanoylresveratrol (ED6, 1.5%), and 3,5-di-O-butanoylresveratrol (ED7, 0.7%). Among the ester derivatives obtained, ED2 and ED4 were the main ester derivatives in the RBE complex. Thus, the cellular antioxidant activities of the RBE mixture, ED2, and ED4 were evaluated. Results showed that the antioxidant capacity of ED2 and ED4 was higher than that of the RBE mixture, demonstrating that the number and position of butyrate esterification sites are related to cell survival rate and antioxidant capacity. This study is the first to report the successful isolation, structural identification, and cellular biological antioxidant activity of RBE complex derivatives, which are key characteristics for the potential practical application of RBE complexes.
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Affiliation(s)
- Ming-Kuei Shih
- Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, Kaohsiung 812, Taiwan;
| | - You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan;
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Chiu-Min Cheng
- Department of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan;
| | - Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Wei Chen
- Department of Medicine, Chang Gung University, Linkow 333, Taiwan;
| | - Hung-Tse Huang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 106, Taiwan;
| | - Chi-I Chang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
- Correspondence: (C.-I.C.); (C.-Y.H.); Tel.: +886-985300345 (C.Y.-H.); Fax: +886-7-3640364 (C.Y.-H.)
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan
- Correspondence: (C.-I.C.); (C.-Y.H.); Tel.: +886-985300345 (C.Y.-H.); Fax: +886-7-3640364 (C.Y.-H.)
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14
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Huang HT, Liaw CC, Chiou CT, Kuo YH, Lee KT. Triterpene Acids from Mesona procumbens Exert Anti-inflammatory Effects on LPS-Stimulated Murine Macrophages by Regulating the MAPK Signaling Pathway. J Agric Food Chem 2021; 69:6271-6280. [PMID: 34039004 DOI: 10.1021/acs.jafc.1c01810] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Five new triterpene acids, mesonaic acids A-C (1-3), 2α,3α,19α-trihydroxy-24-nor-4(23),12-oleanadien-28-oic acid (4), and 3α,19α,22α-trihydroxy-2-oxo-12-ursen-28-oic acid (5), and 10 known triterpene acid compounds (6-15) were isolated from a methanolic extract of Mesona procumbens. Triterpenes 1-3 possess unusual hexacyclic skeletons with a 13α,27-cyclopropane ring. Regarding their anti-inflammatory activity, compounds 1-3, 6, and 7 inhibited NO production with EC50 values lower than 15 μM, which were better than that of the positive control quercetin. Compounds 1-3, 6, and 7 markedly decreased levels of the inducible iNOS and COX-2 proteins in macrophages by inhibiting the activation of NF-κB through interference with the MAPK signaling pathway. Based on these data, compounds 1-3, 6, and 7 have great potential as NO inhibitors.
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Affiliation(s)
- Hung-Tse Huang
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi 60004, Taiwan
| | - Chun-Tang Chiou
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - Kung-Ta Lee
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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Lee IJ, Chao CY, Yang YC, Cheng JJ, Huang CL, Chiou CT, Huang HT, Kuo YH, Huang NK. Huang Lian Jie Du Tang attenuates paraquat-induced mitophagy in human SH-SY5Y cells: A traditional decoction with a novel therapeutic potential in treating Parkinson's disease. Biomed Pharmacother 2020; 134:111170. [PMID: 33383311 DOI: 10.1016/j.biopha.2020.111170] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 12/12/2020] [Accepted: 12/15/2020] [Indexed: 10/22/2022] Open
Abstract
Huang Lian Jie Du Tang (HLJDT) is a traditional Chinese medical decoction for heat-fire clearing and detoxication. Theoretically, the cause of Parkinson's disease (PD) has been attributed to the dysregulations of internal wind, phlegm, fire, and stasis. Thus, HLJDT has been used to treat PD. However, the molecular mechanism is unknown. Besides, paraquat (PQ) as an herbicide has been known to impair midbrain dopaminergic neurons, resemblance to the pathology of PD. Thus, the molecular mechanism of HLJDT in treating PD and PQ-induced in vitro PD model was investigated in this study. Primarily, the dose-response of PQ (0.1∼1 mM)-induced neurotoxicity for 24 h was performed in the human neuroblastoma SH-SY5Y cells. The LD50 of PQ is around 0.3 mM and was applied throughout the following experiments. The neutral red assay was used to estimate cell viability. Co-transfection of the mitochondrial marker and proapoptotic factor genes were applied to measure the release of mitochondrial proapoptotic factors during PQ intoxication and HLJDT protection. The fluorescent dyes were used to detect mitochondrial membrane potential and free radical formation. Western blot and dot-blot analysis and immunocytochemistry were used to estimate the level of proteins related to apoptosis and mitophagy. PINK1 gene silencing was used to determine the significance of mitophagy during PQ intoxication. In this study, HLJDT attenuated PQ-induced apoptosis in SH-SY5Y cells. HLJDT reversed PQ-induced decreased mitochondrial membrane potential and suppressed PQ-induced increased cytosolic and mitochondrial free radical formations and mitochondrial proapoptotic factor releases. Furthermore, HLJDT mitigated PQ-induced increases in full-length PINK1, phosphorylations of Parkin and ubiquitin, mitochondrial translocation of phosphorylated Parkin, and mitophagy. PINK1 gene silencing attenuated PQ-induced neurotoxicity. Therefore, HLJDT attenuated PQ-induced cell death by regulating mitophagy.
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Affiliation(s)
- I-Jung Lee
- Herbal Medicine Department, Yokohama University of Pharmacy, Yokohama, Japan
| | - Che-Yi Chao
- Department of Psychiatry, Cardinal Tien Hospital, New Taipei City 23148, Taiwan, ROC
| | - Ying-Chen Yang
- Department of Biotechnology and Animal Science, National Ilan University, Ilan 26047, Taiwan, ROC
| | - Jing-Jy Cheng
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11267, Taiwan, ROC
| | - Chuen-Lin Huang
- Medical Research Center, Cardinal Tien Hospital, Hsintien, New Taipei City 23148, Taiwan, ROC; Graduate Institute of Physiology & Department of Physiology and Biophysics, National Defense Medical Center, Taipei 11490, Taiwan, ROC
| | - Chun-Tang Chiou
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11267, Taiwan, ROC
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11267, Taiwan, ROC
| | - Yao-Haur Kuo
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11267, Taiwan, ROC; Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan, ROC
| | - Nai-Kuei Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11267, Taiwan, ROC; The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan, ROC; Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei 11031, Taiwan, ROC.
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16
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Kuo JCL, Zhang LJ, Huang HT, Liaw CC, Lin ZH, Liu M, Kuo YH. Bioactive Flavonoid Glycosides and HPLC and UPLC Quantification of Commercial Astragali Complanati Semen. Molecules 2020; 25:E4762. [PMID: 33081333 PMCID: PMC7587559 DOI: 10.3390/molecules25204762] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 11/17/2022] Open
Abstract
Eleven compounds, including nine known flavonoid glycosides (1-4, 6-8, and 10-11), one isoflavone glycoside (5), and a glansreginic acid (9), were isolated from the 80% ethanol extract of commercial Astragali Complanati Semen (ACS). All chemical structures were determined by spectroscopic analyses, including 1D and 2D NMR. Compounds 2, 4, 5, 6, 9, and 10 were isolated and identified from the title plant for the first time. Biological evaluation revealed that all the isolates showed promising anti-NO production, and 1, 2, 3, and 8 were more potent in antioxidant activity than vitamin E. The major peaks in the UPLC and HPLC profiles identified their chemical structures by comparing their retention time and UV spectra with those of the reference substances. Furthermore, nine of the eleven samples collected from North, Middle, and South regions of Taiwan possessed similar HPLC fingerprints and were identified as Astragali Complanati Semen, whereas the other two samples from southern Taiwan would be the adulterants due to the different fingerprinting patterns. In addition, an HPLC-UV method was employed to determine the content of target compound complanatuside (11) with good linear regression (R2 = 0.9998) for ACS in the Taiwanese market. Of the isolates, flavonol glycosides 1 and 3 were the major peaks in HPLC/UPLC, and showed more potent antioxidant and anti-NO production activities than that of 11, revealing that these compounds can be the available agents for the quality control of ACS.
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Affiliation(s)
- Jenny Chun-Ling Kuo
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Tao-Yuan 333, Taiwan;
| | - Li-Jie Zhang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan; (L.-J.Z.); (H.-T.H.); (C.-C.L.); (Z.-H.L.)
| | - Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan; (L.-J.Z.); (H.-T.H.); (C.-C.L.); (Z.-H.L.)
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 106, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan; (L.-J.Z.); (H.-T.H.); (C.-C.L.); (Z.-H.L.)
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi 600, Taiwan
| | - Zhi-Hu Lin
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan; (L.-J.Z.); (H.-T.H.); (C.-C.L.); (Z.-H.L.)
| | - Min Liu
- Department of Life Science, Chinese Culture University, Taipei 113, Taiwan;
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan; (L.-J.Z.); (H.-T.H.); (C.-C.L.); (Z.-H.L.)
- Graduate Institute of Integrated Medicine, China Medical University, Taichung 404, Taiwan
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Xie ZQ, Zhao DY, Huang HT, Gou JB, Zhang W, Yang YL, Huang LL, Wang YX, Wang X, Xu LF, Zhu T, Xia SL. [ A phase Ⅲ clinical trial study on the safety and immunogenicity of ACYW135 group meningococcal conjugate vaccine inoculated in 3 month old infants]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:947-952. [PMID: 32907283 DOI: 10.3760/cma.j.cn112150-20200520-00758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The aim of this study was to evaluate the safety and immunogenicity of the first domestic ACYW135 meningococcal conjugate vaccine and a control vaccine named AC group meningococcal conjugate vaccine for 3 months (90-119 days) infants. Methods: From February 2017 to June 2018, a randomized, blinded, and similar vaccine-controlled clinical trial design was adopted at the Henan Vaccine Clinical Research Base. The subjects were 3 months old healthy infants, a total of 720, based on a 1∶1 ratio. The random allocation table for entry was randomly assigned to the experimental group and the control group. According to the 3, 4, and 5 month-old vaccination procedures, the subjects were vaccinated with test vaccine (ACYW135 group meningococcal conjugate vaccine) and control vaccine (group A group C meningococcal polysaccharide conjugate vaccine), of which 720 were given the first dose, 696 were given the second dose (test group: 346; control group: 350), and 692 were given the third dose (test group: 344; Control group: 348). Results: The overall adverse reaction rate of the test vaccine was 21.90% (230 cases), which was lower than the 32.04% (339 cases) of the control vaccine (P<0.001). The incidence of systemic adverse reactions was 19.52% (205 cases), which was lower than that of the control vaccine (27.69%) (293 cases) (P<0.001). The local adverse reaction rate was 3.04% (32 cases), which was lower than the control group (7.84%) (83 cases) (P<0.001). The graded adverse reaction test vaccine was 0.57% (6 cases), which was lower than the control group of 2.36% (25 cases) (P<0.001). The positive conversion rate of anti-bacterial serum antibodies showed that there was no significant difference between the test vaccine group A (91.42%), C (88.76%) and the control vaccine (92.92%) (87.02%) (P>0.05). Group Y and W135 was 88.17% (298 cases), 99.41% (336 cases), respectively. The GMT results showed that the test vaccine group A was 56.24, the control vaccine was 57.43 (P>0.05); the group C test vaccine (43.53) was higher than the control group (27.28) (P<0.001). The group Y and W135 are 89.22 and 140.66, respectively. Among them, the proportion of the group C GMT antibody ≥ 1∶128 for test vaccine (31.07%, 105 cases) was higher than the control vaccine (16.22%, 55 cases) (P<0.001). Conclusion: ACYW135 group meningococcal conjugate vaccine has more safety and immunogenicity after application to 3 month old infants.
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Affiliation(s)
- Z Q Xie
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - D Y Zhao
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - H T Huang
- CanSino Biologics Inc., Tianjin 300457, China
| | - J B Gou
- CanSino Biologics Inc., Tianjin 300457, China
| | - W Zhang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y L Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - L L Huang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y X Wang
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - X Wang
- CanSino Biologics Inc., Tianjin 300457, China
| | - L F Xu
- CanSino Biologics Inc., Tianjin 300457, China
| | - T Zhu
- CanSino Biologics Inc., Tianjin 300457, China
| | - S L Xia
- Center of Vaccine Clinical Trial, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
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Huang HT, Zhang LJ, Huang HC, Hwang SY, Wu CL, Lin YC, Liaw CC, Cheng YY, Morris-Natschke SL, Huang CY, Lee KH, Kuo YH. Cucurbitane-Type Triterpenoids from the Vines of Momordica charantia and Their Anti-inflammatory Activities. J Nat Prod 2020; 83:1400-1408. [PMID: 32357011 PMCID: PMC8173961 DOI: 10.1021/acs.jnatprod.9b00592] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Seven new cucurbitane-type triterpenoids, kuguaovins A-G (1-7), and five known ones were isolated from the rattans of wild Momordica charantia. Their structures were established by spectroscopic data analyses, including 1D and 2D NMR, IR, and MS techniques. The absolute configurations of the cucurbitanes were determined from NOESY data and partially by X-ray crystallographic analysis. In pharmacological studies, compounds 1-7 and 9-12 exhibited weak anti-inflammatory effects (IC50 = 15-35 μM), based on an anti-NO production assay.
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Affiliation(s)
- Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Li-Jie Zhang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Institute of Pharmaceutics, Development Center Biotechnology, New Taipei City 221, Taiwan
| | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan
| | - Syh-Yuan Hwang
- Endemic Species Research Institute, Council of Agriculture, Nantou 552, Taiwan
| | - Chia-Lun Wu
- Department of Food Science, National Ilan University, Ilan 260, Taiwan
| | - Yu-Chi Lin
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Department of Research and Development, Starsci Biotech Co. Ltd., Taipei 112, Taiwan
| | - Yung-Yi Cheng
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 404, Taiwan
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 404, Taiwan
| | - Chung-Yi Huang
- Department of Food Science, National Ilan University, Ilan 260, Taiwan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 404, Taiwan
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 112, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
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Huang HT, Lin YC, Zhang LJ, Liaw CC, Chen HY, Hsueh MT, Kuo YH. Anti-Inflammatory and anti-proliferative oleanane-type triterpene glycosides from the vine of Momordica cochinchinensis. Nat Prod Res 2019; 35:2707-2714. [PMID: 31533481 DOI: 10.1080/14786419.2019.1666383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This research isolated two new oleanane-type triterpene glycosides, named mocochinosides A (1) and B (2), together with ten known compounds as chikusetsusaponin IVa ethyl ester (3), momordin Ib (4), momordin IIb (5), momordin II (6), calenduloside G (7), calenduloside H (8), elatoside A (9), elatoside C (10), calendulaglycoside C 6'-O-7-butyl ester (11), and hederagenin 3-O-β-D-glucuronopyranoside (12) and characterized them from the vines of Momordica cochinchinensis. The new structures of both glycosides 1-2 were elucidated by spectroscopic analysis including 2 D NMR and MS, followed by an analysis of their anti-inflammatory and cytotoxic activities. Compounds 1, 4, and 11 showed moderate inhibitions for NO production on RAW264.7 macrophages induced by LPS at IC50 5.41 ∼ 11.28 μM. Compounds 3, 4, and 7 (IC50 8.42 ∼ 19.74 μM) exhibited potential anti-proliferative activities against both of WiDr and MCF-7 human tumor cell lines.
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Affiliation(s)
- Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan.,Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Yu-Chi Lin
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Li-Jie Zhang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan.,Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan
| | - Hsin-Yen Chen
- Taitung District Agricultural Research and Extension Station, Council of Agriculture, Taitung, Taiwan
| | - Ming-Tung Hsueh
- Taitung District Agricultural Research and Extension Station, Council of Agriculture, Taitung, Taiwan
| | - Yao-Haur Kuo
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, Taiwan.,Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
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Huang NK, Lin CC, Lin YL, Huang CL, Chiou CT, Lee YC, Lee SY, Huang HT, Yang YC. Morphological control of mitochondria as the novel mechanism of Gastrodia elata in attenuating mutant huntingtin-induced protein aggregations. Phytomedicine 2019; 59:152756. [PMID: 31004885 DOI: 10.1016/j.phymed.2018.11.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 11/13/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND According to Compendium of Materia Medica, Gastrodia elata (GE) Blume as a top grade and frequently prescribed herbal medicine has been used in treating dizziness, headaches, and epilepsy, indicating a neuroprotective effect. Because GE is capable of suppressing a hyperactive liver and thus calming endogenous wind, and because Huntington's disease (HD) can be classified as a phenomenon of disturbed liver wind, it is suggested that GE might be beneficial in treating HD. However, although current studies support GE for the prevention of diverse neurodegenerations such as HD, its detailed mechanisms remain elusive. PURPOSE To investigate the molecular mechanism of GE in preventing HD by focusing on mitochondrial morphology, which is highly associated with HD etiology and thus proposed as a therapeutic target of neurodegenerations. STUDY DESIGN/METHODS The overexpression of the mutant huntingtin (mHTT) gene in rat pheochromocytoma (PC12) cells was used as an in vitro cell model of HD. A filter retardation assay was applied to measure protein aggregations during HTT expression. Cotransfection with mitochondrial fusion and fission genes was used to test their relationships with HTT aggregates by monitoring with a confocal laser scanning microscope and filter retardation assay. Western blot analysis was used to estimate protein expression under different drug treatments or cotransfections with other related genes. RESULTS The overexpression of mutant but not normal HTT genes significantly resulted in protein aggregations in PC12 cells. GE dose-dependently attenuated mHTT-induced protein aggregations and free radical formations. GE significantly reversed mHTT-induced mitochondrial fragmentation and dysregulation of mitochondrial fusion and fission molecules. The overexpression of mitochondrial fusion genes attenuated mHTT-induced protein aggregations. Further, Mdivi-1, a DRP1 fission molecule inhibitor, significantly reversed mHTT-induced protein aggregations and mitochondrial fragmentation. CONCLUSION GE attenuated mHTT aggregations through the control of mitochondrial fusion and the fission pathway.
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Affiliation(s)
- Nai-Kuei Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC; Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chung-Chih Lin
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan, ROC; Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan, ROC; Biophotonics Interdisciplinary Research Center, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yun-Lian Lin
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan, ROC
| | - Chuen-Lin Huang
- Medical Research Center, Cardinal Tien Hospital, Hsintien, New Taipei City, Taiwan, ROC; Graduate Institute of Physiology & Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chun-Tang Chiou
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Yi-Chao Lee
- Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Shu-Yi Lee
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Ying-Chen Yang
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan, ROC.
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Huang HT, Lu YL, Wang CF, Lei M, Wang R, Wei YS. [Research progress on the association between microRNA-17-92 cluster and cardiovascular and cerebrovascular diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:73-77. [PMID: 30669817 DOI: 10.3760/cma.j.issn.0253-3758.2019.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H T Huang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
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Yang JM, Huang HM, Cheng JJ, Huang CL, Lee YC, Chiou CT, Huang HT, Huang NK, Yang YC. LGK974, a PORCUPINE inhibitor, mitigates cytotoxicity in an in vitro model of Parkinson's disease by interfering with the WNT/β-CATENIN pathway. Toxicology 2018; 410:65-72. [PMID: 30205152 DOI: 10.1016/j.tox.2018.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 01/10/2023]
Abstract
Paraquat (PQ) as an herbicide has been demonstrated to impair dopaminergic (DAergic) neurons and highly correlate with the etiology of Parkinson's disease (PD). WNT/β-CATENIN signaling is known for the specification and neurogenesis of midbrain DAergic neurons and implicated as a therapeutic target in treating many diseases, such as cancer and degenerative diseases. LGK974, a WNT pathway inhibitor, is currently under clinical trial for patients with malignancies. Since the exact role of WNT/β-CATENIN signaling in mediating PD is undetermined, LGK974 was used to examine its effect on the PQ-induced cell model of PD. LGK974 attenuated PQ-induced apoptosis and released mitochondrial pro-poptotic molecules in human neuroblastoma SH-SY5Y cell. PQ increased the levels of β-CATENIN, non-phosphorylated (Ser33/37/Thr41) β-CATENIN, and phosphorylated glycogen synthase kinase (GSK)-3α/β. PQ also increased the nuclear translocation of β-CATENIN, which can be attenuated by LKG974. Furthermore, LGK974 attenuated the PQ-induced release of mitochondrial proapoptotic factors and WNT agonist 1-induced cell death. Taken together, we have shown for the first time that LGK974 mediated through the WNT/β-CATENIN pathway to prevent PQ-induced cell death.
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Affiliation(s)
- Jung-Mou Yang
- Department of Emergency, Cardinal Tien Hospital, Hsintien, New Taipei City, Taiwan, ROC
| | - Huei-Mei Huang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - Jing-Jy Cheng
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Chuen-Lin Huang
- Medical Research Center, Cardinal Tien Hospital, Hsintien, New Taipei City, Taiwan, ROC; Graduate Institute of Physiology & Department of Physiology and Biophysics, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Yi-Chao Lee
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chun-Tang Chiou
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Hung-Tse Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC
| | - Nai-Kuei Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei, Taiwan, ROC; Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC.
| | - Ying-Chen Yang
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan, ROC.
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Guo LC, Liu XC, Xu QY, Yiu YS, Cai Y, Jiang GQ, Sun ZY, Luo XY, Huang HT, Zhang Y. [Epidemiological analysis on serogroup Y neisseria meningitidis firstly isolated from patient in Tianjin]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:825-827. [PMID: 27655605 DOI: 10.3760/cma.j.issn.0253-9624.2016.09.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L C Guo
- Department of National Immunization Program, Xiqing Center for Disease Control and Prevention, Tianjin 300112, China
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Chen K, Huang HT, Hang WJ, Pan LB, Ma HT. Effects of lung cancer cell-associated B7-H1 on T-cell proliferation in vitro and in vivo. ACTA ACUST UNITED AC 2016; 49:S0100-879X2016000700701. [PMID: 27332773 PMCID: PMC4918791 DOI: 10.1590/1414-431x20165263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/08/2016] [Indexed: 01/22/2023]
Abstract
B7 homolog 1 (B7-H1) is the most potent immunoinhibitory molecule in the B7 family.
In this study, we examined the effects of tumor-associated B7-H1 on T-cell
proliferation in lung cancer. The expression of B7-H1 in human adenocarcinoma A549
and mouse Lewis lung carcinoma (LLC) cells were examined by flow cytometry. To assess
the in vitro effect of tumor-associated B7-H1 on T-cell
proliferation, we isolated T cells from peripheral blood mononuclear cells (PBMCs) of
healthy individuals, labeled them with carboxyfluorescein succinimidyl ester, and
co-cultured them with A549 cells in the absence or presence of anti-B7-H1 antibody.
For in vivo analysis, LLC cells were subcutaneously injected into
mice treated or not with anti-B7-H1 antibody. T-cell proliferation in both in
vitro and in vivo assays was analyzed by flow cytometry.
In vitro, co-culturing T cells with A549 cells significantly
inhibited the proliferation of the former compared with the proliferation of T cells
alone (P<0.01), and the addition of B7-H1 blocking antibody dramatically reversed
the inhibition of T-cell proliferation by A549 cells. Similarly, in mice bearing
LLC-derived xenograft tumors, in vivo administration of anti-B7-H1
antibody significantly increased the total number of spleen and tumor T cells
compared to levels in control mice that did not receive anti-B7-H1 antibody.
Functionally, in vivo administration of anti-B7-H1 antibody markedly
reduced tumor growth. Tumor-associated B7-H1 may facilitate immune evasion by
inhibiting T-cell proliferation. Targeting of this mechanism offers a promising
therapy for cancer immunotherapy.
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Affiliation(s)
- K Chen
- Soochow University, Soochow University, Department of Cardiothoracic Surgery, Jiangsu , China, Department of Cardiothoracic Surgery, the First Affiliated Hospital of Soochow University, Jiangsu, China
| | - H T Huang
- Soochow University, Soochow University, Department of Cardiothoracic Surgery, Jiangsu , China, Department of Cardiothoracic Surgery, the First Affiliated Hospital of Soochow University, Jiangsu, China
| | - W J Hang
- Soochow University, Soochow University, Department of Cardiothoracic Surgery, Jiangsu , China, Department of Cardiothoracic Surgery, the First Affiliated Hospital of Soochow University, Jiangsu, China
| | - L B Pan
- Soochow University, Soochow University, Department of Cardiothoracic Surgery, Jiangsu , China, Department of Cardiothoracic Surgery, the First Affiliated Hospital of Soochow University, Jiangsu, China
| | - H T Ma
- Soochow University, Soochow University, Department of Cardiothoracic Surgery, Jiangsu , China, Department of Cardiothoracic Surgery, the First Affiliated Hospital of Soochow University, Jiangsu, China
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Huang HT, Gao ZG, Liu Y, Sun J, Liu P, Wang LJ, Li Y, Zhang J, Zhang Y. [Epidemiology of pertussis in adults and related factors in Tianjin, 2005-2014]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:678-81. [PMID: 27188361 DOI: 10.3760/cma.j.issn.0254-6450.2016.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To understand the epidemiological characteristics of pertussis in adults and related factors in Tianjin. METHODS Descriptive epidemiological analysis was conducted by using the epidemiological data of pertussis in adults in Tianjin during 2005-2014. The transmission routes of family cluster cases were analyzed. ELISA was conducted to detect pertussis immunity levels in adults aged 18-83 years. RESULTS The pertussis cases in adults accounted for 28.57%(252/882)of the total cases in Tianjin , the annual incidence of pertussis in adults was 0.16/100 000. The highest incidence was 0.46/100 000 in 2013. The age specific proportion of the cases was highest in age group 21-30 years(36.12%, 91/252). Three household transmission routes of pertussis were identified, the major one was adult-to-infant(77.78%,98/126). The parents were the infection sources of 81.64% of infant cases(80/98). Of the 904 study subjects, the average positive rate of antibody against pertussis was 55.20%(95%CI: 51.96%-58.44%). There were significant differences in antibody positive rate among different age groups(P= 0.015), and which had the linear correlation with the reported annual incidence(r=0.98, P=0.003)and showed upward trend(χ(2)=11.79, P=0.001). CONCLUSION The study indicated that adults have become the population at high risk for pertussis and the major infection sources for infants in Tianjin. The positive rate of antibody against pertussis was low in adults. It is suggested to conduct pertussis vaccination in adults.
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Affiliation(s)
- H T Huang
- Expanded Program on Immunization Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Z G Gao
- Expanded Program on Immunization Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Y Liu
- Pathogen Detection Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - J Sun
- Expanded Program on Immunization Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - P Liu
- Pathogen Detection Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - L J Wang
- Expanded Program on Immunization Department, Binghai New District Hangu Centers for Disease Control and Prevention, Tianjin 300480, China
| | - Y Li
- Program on Immunization Department, Hongqiao District Centers for Disease Control and Prevention, Tianjin 300132, China
| | - J Zhang
- Program on Immunization Department, Beichen District Centers for Disease Control and Prevention, Tianjin 300400, China
| | - Y Zhang
- Expanded Program on Immunization Department, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
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Du CH, Huang HT, Yuan GY, Zhao GS, Li HX, Zhang Y, Sun YJ, Xu HM, Dong SZ. [Study on the expression of T, B lymphocyte antigen and platelet antibodies in patients with platelet transfusion refractoriness]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:238-41. [PMID: 27033764 PMCID: PMC7342956 DOI: 10.3760/cma.j.issn.0253-2727.2016.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
目的 探讨T、B淋巴细胞,血小板膜糖蛋白和血小板抗体在血小板输注无效中作用。 方法 选择41例临床确诊血小板输注无效患者为研究对象,以27例血小板输注有效患者为对照组,采用流式细胞术检测两组患者外周血细胞毒性T淋巴细胞(CD3 +CD4−CD8+)、辅助性T淋巴细胞(CD3 + CD4+CD8−)、B淋巴细胞(CD19+)比例和血小板膜糖蛋白CD41а、CD61的表达,采用固相凝集法检测两组患者血清中的血小板抗体。 结果 与对照组比较,血小板输注无效组患者:①辅助性T细胞比例明显下降(36.60%对48.53%),细胞毒性T细胞比例显著增高(53.26%对44.02%),二者比值下降(0.85对1.31),差异均有统计学意义(P值均<0.05);②B淋巴细胞比例差异无统计学意义(3.02%对2.85%,P=0.901);③CD41а阳性细胞率[(88.10±12.75)%对(51.69±24.45)%,P=0.001]和CD61阳性细胞率[(88.36±12.31)%对(51.83±24.48)%,P<0.001]均显著升高;④血小板抗体阳性率显著增高(85.37%对14.82%,P<0.05)。 结论 细胞毒性T淋巴细胞的激活、辅助性T细胞的抑制、血小板膜糖蛋白CD41а和CD61的表达以及血小板抗体的产生均在血小板输注无效的发生过程中发挥重要作用。
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Affiliation(s)
- C H Du
- The General Hospital of Tianjin Medical University, Tianjin 300052, China
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Zhang LJ, Huang HT, Huang SY, Lin ZH, Shen CC, Tsai WJ, Kuo YH. Antioxidant and Anti-Inflammatory Phenolic Glycosides from Clematis tashiroi. J Nat Prod 2015; 78:1586-92. [PMID: 26143931 DOI: 10.1021/acs.jnatprod.5b00154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
From the 95% EtOH extract of dried aerial parts of Clematis tashiroi, eight new and four known phenolic (caffeic acid, coumaric acid, ferrulic acid) glycosides were isolated and characterized. The structures of the new isolates (clematisides A-H) were elucidated by spectroscopic data interpretation as trans-4-O-(6-O-trans-caffeoyl-β-D- glucopyranosyl)-9-O-β-D-glucopyranosyl caffeic acid (1), trans-4-O-(6-O-trans-feruloyl-β-D-glucopyranosyll)-9-O-β-D-glucopyranosyl caffeic acid (2), trans-4-O-(6-O-trans-p-coumaroyl-β-D-glucopyranosyl)-9-O-β-D-glucopyranosyl caffeic acid (3), trans-4-O-(6-O-trans-caffeoyl-β-D-glucopyranosyl)-9-O-β-D-glucopyranosyl p-coumaric acid (4), trans-3-O-(6-O-trans-caffeoyl-β-D-glucopyranosyl)-9-O-β-D-glucopyranosyl caffeic acid (5), trans-3-O-(6-O-trans-p-coumaroyl-β-D-glucopyranosyl)-9-O-β-D-glucopyranosyl caffeic acid (6), 6-(3',4'-dihydroxystyryl)-2-pyrone-4-O-(6-O-trans-caffeoyl)-β-D-glucopyranoside (7), and 6-(3',4'-dihydroxystyryl)-2-pyrone-4-O-{6-O-[4-O-(6-O-trans-caffeoyl)-β-D-glucopyranosyl]-trans-caffeoyl}-β-D-glucopyranoside (8), respectively. In a DPPH radical-scavenging test, compounds 1, 7, and 8 showed more potent antioxidant activity than that of the positive control, vitamin E. In addition, compound 7 also showed inhibitory activity in an antinitric oxide release assay.
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Affiliation(s)
- Li-Jie Zhang
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
| | - Hung-Tse Huang
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
| | - Shih-Yen Huang
- ‡Endemic Species Research Institute, Nantou County 552, Taiwan, Republic of China
| | - Zhi-Hu Lin
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
| | - Chien-Chang Shen
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
| | - Wei-Jern Tsai
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
| | - Yao-Haur Kuo
- †National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 112, Taiwan, Republic of China
- §Graduate Institute of Integrated Medicine, China Medical University, Taichung 404, Taiwan, Republic of China
- ⊥Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan, Republic of China
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Yang Kuo LM, Zhang LJ, Huang HT, Lin ZH, Liaw CC, Cheng HL, Lee KH, Morris-Natschke SL, Kuo YH, Ho HO. Antioxidant lignans and chromone glycosides from Eurya japonica. J Nat Prod 2013; 76:580-587. [PMID: 23540981 DOI: 10.1021/np3007638] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Four new 8,8',7,2'-lignans, (+)-ovafolinin B-9'-O-β-d-glucopyranoside (1), (-)-ovafolinin B-9'-O-β-d-glucopyranoside (2), (+)-ovafolinin E-9'-O-β-d-glucopyranoside (3), and (-)-ovafolinin E-9'-O-β-d-glucopyranoside (4), two neolignans, eusiderin N (5) and (7S,8R)-3,5,5'-trimethoxy-4',7-epoxy-8,3'-neolignan-9,9'-diol-4-O-β-d-xylopyranoside (6), and two new chromone glycosides, 5,7-dihydroxy-4H-chromen-4-one-3-O-β-d-glucopyranoside (7) and 5,7-dihydroxy-4H-chromen-4-one-3-O-β-d-xylopyranoside (8), together with 25 known compounds, were isolated from the stems of Eurya japonica. Structural elucidation of compounds 1-8 was established by spectroscopic methods, especially 2D NMR techniques, electronic circular dichroism data, and comparison with reported data. The isolates were evaluated for antioxidant and anti-NO production activities. Compounds 1, 2, 12-20, and 29 (ED50 23.40 μM for 1) demonstrated potent antioxidant activity compared to the positive control α-tocopherol (ED50 27.21 μM). On the other hand, compounds 1, 2, 7-9, 12-20, and 32 showed only weak anti-NO production activity when compared to the positive control quercetin.
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Affiliation(s)
- Li-Ming Yang Kuo
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan, Republic of China
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Liu CP, Kuo MS, Wu BN, Chai CY, Huang HT, Chung PW, Chen IJ. NO-releasing xanthine KMUP-1 bonded by simvastatin attenuates bleomycin-induced lung inflammation and delayed fibrosis. Pulm Pharmacol Ther 2013; 27:17-28. [PMID: 23518214 DOI: 10.1016/j.pupt.2013.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 02/26/2013] [Accepted: 03/03/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND AND PURPOSE Pulmonary fibrosis (PF) is a progressing lung injury initiated by pulmonary inflammation (PI). Bleomycin (BLM) is the most common pathogenesis of PF through early PI and extensive extracellular matrix deposition. This study is aimed to determine whether NO-releasing KMUP-1 inhibits PI and PF, and if so, the benefits of KMUP-1S resulted from simvastatin (SIM)-bonding to KMUP-1. EXPERIMENT APPROACH C57BL/6 male mice were intra-tracheally administered BLM (4 U/kg) at day 0. KMUP-1 (1-5 mg/kg), KMUP-1S (2.5 mg/kg), SIM (5 mg/kg), Plus (KMUP-1 2.5 mg/kg + SIM 2.5 mg/kg), and clarithromycin (CAM, 10 mg/kg) were orally and daily administered for 7 and 28 days, respectively, to mice, sacrificed at day-7 and day-28 to isolate the lung tissues, for examining the inflammatory and fibrotic signaling and measuring the cell population and MMP-2/MMP-9 activity in broncholaveolar lavage fluid (BAL). KEY RESULTS KMUP-1 and KUP-1S significantly decreased neutrophil counts in BAL fluid. Fibroblastic foci were histologically assessed by H&E and Masson's trichrome stain and treated with KMUP-1 and references. Lung tissues were determined the contents of collagen and the expressions of TGF-β, α-SMA, HMGB1, CTGF, eNOS, p-eNOS, RhoA, Smad3, p-Smad3, MMP-2 and MMP-9 by Western blotting analyses, respectively. These changes areregulated by NO/cGMP and inhibited by various treatments. KMUP-1 and KMUP-1S predominantly prevented HMGB1/MMP-2 expression at day-7 and reduced TGF-β/phosphorylated Smad3 and CTGF at day-28. CONCLUSIONS AND IMPLICATIONS KMUP-1 and KMUP-S restore eNOS, inhibit iNOS/ROCKII/MMP-2/MMP-9, attenuate histologic collagen disposition and reduce BALF inflammatory cells, potentially useful for the treatment of BLM-lung PF.
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Affiliation(s)
- C P Liu
- Department of Cardiology, Yuan's General Hospital, Kaohsiung, Taiwan
| | - M S Kuo
- Department of Pharmacology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - B N Wu
- Department of Pharmacology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - C Y Chai
- Department of Pathology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - H T Huang
- Department of Anatomy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - P W Chung
- Department of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I J Chen
- Department of Pharmacology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Zhang LJ, Cheng JJ, Liao CC, Cheng HL, Huang HT, Kuo LMY, Kuo YH. Triterpene acids from Euscaphis japonica and assessment of their cytotoxic and anti-NO activities. Planta Med 2012; 78:1584-1590. [PMID: 22814889 DOI: 10.1055/s-0032-1315040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Six new triterpenoids, euscaphic acids G-L (1-6), along with nine known triterpene acids, and two known lignans were isolated from the ethanolic extract of the twigs of Euscaphis japonica. This is the first report concerning 1α,3β-dihydroxy-12-oleanen-28-oic acid isolated from a natural source. The structures of the new compounds were established by spectroscopic analysis. The cytotoxic and anti-NO production activities for the isolates are also evaluated and discussed; compound 1, hederagenin (11), and arjunic acid (12) showed significant cytotoxicity against NCI-H460 cells, HT-29 cells, and CEM cells (IC₅₀ = 1.64 ± 0.87, 2.11 ± 1.54, 1.73 ± 0.64 µM, respectively). Some of the isolated triterpenoids showed marginal inhibitions on NO production induced by LPS.
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Affiliation(s)
- Li-Jie Zhang
- National Research Institute of Chinese Medicine, Taipei, Taiwan
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Shen CC, Hong KY, Chen J, Zhang LJ, Lin ZH, Huang HT, Cheng HL, Kuo YH. Antioxidant and Anti-nitric Oxide Components from Quercus glauca. Chem Pharm Bull (Tokyo) 2012; 60:924-9. [DOI: 10.1248/cpb.c12-00174] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Kun-Yuan Hong
- School of Forestry and Resource Conservation, National Taiwan University
- Taiwan Forestry Research Institute
| | - Jennifer Chen
- Institute of Life Science, National Taitung University
| | | | - Zhi-Hu Lin
- National Research Institute of Chinese Medicine
| | | | | | - Yao-Haur Kuo
- National Research Institute of Chinese Medicine
- Institute of Life Science, National Taitung University
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Huang HT, Su JY, Su KN, Tien YC. Total knee arthroplasty after failed dome osteotomy. Kaohsiung J Med Sci 2002; 18:485-91. [PMID: 12517064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
A retrospective, clinical and radiographic analysis was done between a study group of 15 patients with 17 total knee arthroplasties done following failed, proximal-tibial dome osteotomies and a control group of 14 patients with 17 primary arthroplasties. The groups were matched according to age of patients, type of prosthesis, primary disease and length of follow-up. The average length of follow-up was 59.4 months (range, 25-146 mo) in the study group and 62.3 months (range, 43-140 mo) in the control group. On the basis of the knee rating scale of the American Knee Society, 94% of the patients had either an excellent or a good result in the study group. There were no significant differences in knee scores, function scores, or range of motion of the knee between the two groups during the follow-up period. Although two overcorrected valgus knees and one severe varus knee necessitated an autogeneic bone graft for tibial defects at the time of implantation of the secondary prosthesis, dome osteotomy does not appear to compromise a subsequent arthroplasty.
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Affiliation(s)
- H T Huang
- Department of Orthopedic Surgery, Kaohsiung Medical University, Kaohsiung, Taiwan
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Tseng WY, Tsao CF, Ko CC, Huang HT. Local capsaicin application to the stellate ganglion and stellatectomy attenuate neurogenic inflammation in rat bronchi. Auton Neurosci 2001; 94:25-33. [PMID: 11775704 DOI: 10.1016/s1566-0702(01)00361-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The present study investigated the contributions of vagal and nonvagal sensory nerve fibers on neurogenic inflammation in rat bronchial airways. A surgical procedure was developed via the rat mediastinum ventral intercostal space to prepare an intercostal opening without causing pneumothorax for performing stellate ganglionectomy alone, thoracic vagus nerve section alone, and stellatectomy plus thoracic vagotomy, and for injecting capsaicin (2 microl, 10 mg/ml) and 6-hydroxydopamine (2 microl, 50 mg/ml) into the ganglion. One week later in our procedure, we investigated if neurogenic inflammation induced by an intravenous injection of capsaicin (300 nmol/ml/kg) and innervation density of substance P-immunoreactive sensory axons could be decreased after chronic denervation in the rat lower airways. The major findings were that surgical removal of the right stellate ganglion and local capsaicin application resulted in a significant attenuation of neurogenic plasma extravasation in the right bronchial tree evoked by systemic capsaicin application. Reduction of neurogenic plasma extravasation was totally abolished by combined stellatectomy and thoracic vagotomy. The number of substance P-containing axons was also greatly decreased following these surgical and capsaicin treatments. It is concluded that sensory nerve fibers from both vagal source and nonvagal (spinal) source, which associated with the stellate ganglion, contributed significantly to neurogenic inflammation in the bronchial airways with a slightly higher contribution from the vagus nerve.
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Affiliation(s)
- W Y Tseng
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
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Jiang MC, Lin TL, Lee TL, Huang HT, Lin CL, Liao CF. IRF-1-mediated CAS expression enhances interferon-gamma-induced apoptosis of HT-29 colon adenocarcinoma cells. Mol Cell Biol Res Commun 2001; 4:353-8. [PMID: 11703094 DOI: 10.1006/mcbr.2001.0303] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The expression of CAS is reported to be upregulated in a variety of human tumor cells, and such expression correlates with the development of tumors. CAS also plays a role in apoptosis. We investigated whether CAS expression affects the susceptibility of tumor cells to IFN-gamma-induced apoptosis. Our data show that IFN-gamma treatment induces CAS expression in HT-29 tumor cells. IFN-gamma-induced gene expression is primarily mediated by the transcriptional factor, IRF-1. Our data show that IRF-1 mediates IFN-gamma-induced CAS expression. Transfection of HT-29 cells with CAS expression vector did not induce apoptosis of cells; nevertheless, CAS overexpression greatly enhanced IFN-gamma-induced apoptosis of cells. CPP32 is regarded as one of the central apoptosis executioner molecules. CAS overexpression enhances IFN-gamma-induced CPP32 expression. These results indicate that tumor cells highly expressing CAS may be more susceptible to apoptosis induced by reagents that are capable of inducing CAS expression. Thus, CAS may be a target for the elimination of tumors.
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Affiliation(s)
- M C Jiang
- Institute of Zoology, Academia Sinica, Taipei 11529, Taiwan, Republic of China
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35
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Huang HT, Rodriguez E, Torres V, Gafner F. Experiments on the identity of chiu shi (autumn mineral) in medieval Chinese pharmacopeias. Pharm Hist 2001; 32:63-5. [PMID: 11622730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Li PC, Huang HT, Liang JT. Neurophysiological effects of recurrent laryngeal and thoracic vagus nerves on mediating the neurogenic inflammation of the trachea, bronchi, and esophagus of rats. Auton Neurosci 2001; 88:142-50. [PMID: 11474555 DOI: 10.1016/s1566-0702(01)00216-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present study aims to investigate the neurophysiological effects of recurrent laryngeal nerve and thoracic vagus nerve on the non-cholinergic regulation of neurogenic plasma extravasation of the rat trachea, bronchi, and esophagus. Through thoracotomy, three nerve components, the right thoracic vagal trunk, thoracic vagus nerve, and recurrent laryngeal nerve, were identified. The experiment was sequentially conducted in four steps. First, the individual nerve component was electrically stimulated and the induced inflammatory responses, as quantified by the area density of India ink-labelled blood vessels in the trachea, bronchial trees and esophagus, were compared. Second, we assessed the relative importance of medial and lateral side of the right thoracic vagus nerve in inducing the inflammatory responses by alternative stimulation of one side with simultaneous severance of the other side of this nerve. Third, we examined the effects of transection of the lateral half of the right thoracic vagus nerve on the degeneration of axon fibers located at the following three sites: the nerve segment proximal to cutting site, bronchial and esophageal nerve branches. Finally, we directly observed the inflammatory histopathology of the right lower trachea after stimulation of the medial half of the right thoracic vagus nerve with transection of its lateral half. In this study, we found that the right recurrent laryngeal nerve was predominant in mediating the neurogenic inflammatory responses of upper and dorsal portions of trachea, whereas the right thoracic vagus nerve was predominant in mediating those of the right lower ventral wall of trachea, right main bronchus, and right lobar bronchial trees. The axon fibers of the right thoracic vagus nerve responsible for mediating the neurogenic inflammatory responses of the right lower ventral trachea were mainly accumulated in the medial half, whereas those innervating the right main bronchus, right lobar bronchial trees, and lower esophagus were largely in the lateral half of this nerve. Transection of the lateral half of the right thoracic vagus nerve resulted in significant degeneration of myelinated fibers in its bronchial and esophageal nerve branches. Histopathological examination of the right lower trachea after electrical stimulation of the medial half of thoracic vagus nerve demonstrated the silver-stained leaky venules with accumulations of inflammatory cells. We thus concluded that afferent C-fibers to upper and dorsal portions of trachea were mainly from recurrent laryngeal nerve. In contrast, the neurogenic inflammatory responses of the right lower trachea were predominantly mediated by the medial half of the right thoracic vagus nerve, and those of the right main bronchus, bronchial trees and lower esophagus were largely by the lateral half of this nerve.
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Affiliation(s)
- P C Li
- Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
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Hsieh BT, Hsieh JF, Tsai SC, Lin WY, Huang HT, Ting G, Wang SJ. Rhenium-188-Labeled DTPA: a new radiopharmaceutical for intravascular radiation therapy. Nucl Med Biol 1999; 26:967-72. [PMID: 10708312 DOI: 10.1016/s0969-8051(99)00074-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Balloon angioplasty is a standard treatment for artherosclerotic coronary artery disease. However, its clinical value is reduced by a high restenosis rate. A new concept in preventing restenosis is the use of a liquid-filled balloon containing a beta-emitting radioisotope. In this study, we performed biodistribution studies of Re-188 perrhenate and Re-188 diethylenetriaminopentaacetate (DTPA) to assess the resulting organ dose values in the event of balloon rupture if these agents are used for the clinical inhibition of restenosis after percutaneous transluminal coronary angioplasty (PTCA). After injecting Re-188 preparations intravenously, rats were killed at 10 min, 30 min, 60 min, 2 h, and 6 h (n = 5 per group). Tissue concentrations were calculated and expressed as percent injected dose per gram or per milliliter (%ID/g or %ID/mL). In addition, urine excretion and thyroid gland uptake were evaluated in rats (n = 5 per group) with a gamma camera after administration of 37 MBq (1 mCi) of each agent. Our data showed that both agents were excreted primarily via urine. However, the excretion of Re-188 DTPA was much faster than that of Re-188 perrhenate via the urinary system. The biodistribution data revealed that radioactivity levels in the stomach and the thyroid gland were high in the perrhenate group but low in the Re-188 DTPA group. The concentration levels in other tissues including lung, liver, testis, muscle, and blood were low throughout this study for both agents. The thyroid radiation value in the Re-188 perrhenate group was 0.163 mGy/MBq, which was much higher than that of the Re-188 DTPA group (0.0167 mGy/MBq). The stomach radiation value was as high as 0.127 mGy/MBq for Re-188 perrhenate, compared with 0.013 mGy/MBq for Re-188 DTPA. In conclusion, in the event of balloon rupture, the release of Re-188 DTPA results in lower radiation doses than Re-188 perrhenate, especially to the thyroid gland and the stomach. Our data suggest that Re-188 DTPA is a useful radiopharmaceutical for endovascular irradiation.
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Affiliation(s)
- B T Hsieh
- Institute of Nuclear Energy Research, Lung-Tan, Taiwan
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Abstract
Improper use of mitomycin-C in ocular medication may result in damage to corneal cells. In this study, the toxic effects of mitomycin-C on cultured porcine keratocytes and endothelial cells were estimated by MTT, 3H-thymidine uptake and cellular counting assay methods. It was found that mitomycin-C caused a dose-dependent toxic effect to keratocytes and endothelial cells. Both cells were treated with mitomycin-C at the concentration ranging from 100, 10, 1, 0.1 to 0.01 microg/ml for 3 min, 5 min or 100 min. The 50% inhibitory dose (ID50) of mitomycin-C to keratocytes and endothelial cells as measured by MTT assay was 0.40, 0.18, 0.16 mg/ml and 0.27, 0.15, 0.14 mg/ml, respectively, after 3, 5 and 100 minutes drug treatment. The ID50 for keratocytes and endothelial cells as measured by 3H-thymidine uptake immediately, 1 day and 7 days after 100 minutes mitomycin-C treatment was 0.3, 0.0002, 143.2 microg/ml and 45.1, 101.1, 450.2 microg/ml, respectively. The ID50 for keratocytes and endothelial cells as measured by cellular counting 1 day and 7 days after mitomycin-C treatment was 232.5, 109.7 microg/ml and 239.9, 367.5 microg/ml, respectively. It is concluded that mitomycin-C is more toxic to cellular proliferation in cultured corneal keratocytes than in endothelial cells.
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Affiliation(s)
- K Y Wu
- Department of Ophthalmology, Kaohsiung Medical College, Taiwan, Republic of China
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Hwang T, Huang HT, Tsao CF. Thoracic vagus section distal to the recurrent laryngeal nerve reduces substance. P-immunoreactive innervation in the rat bronchial tree. Anat Embryol (Berl) 1999; 200:153-60. [PMID: 10424873 DOI: 10.1007/s004290050269] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The vagal nerve trunk in the mediastinum of mammals divides into two main branches, the thoracic vagus nerve and the recurrent laryngeal nerve, in which the sensory nerve axons are largely involved in neurogenic inflammation in the tracheobronchial airways. A previous study demonstrated that cutting the right-side thoracic vagus nerve but not the recurrent laryngeal nerve inhibited capsaicin-induced neurogenic inflammation in the right bronchial tree of the rat. The effect of left thoracic vagus nerve section is still not known. The main purpose of the present study was to investigate the effect of sectioning the right or left thoracic vagus nerve on the innervation density of substance P-immunoreactive axons in bilateral bronchial trees. Following nerve degeneration, the whole mounts of airway tissues were processed with substance P immunohistochemistry. Denervation of either thoracic vagus nerve reduced the innervation density of axons by 38-71% in different parts of the ipsilateral bronchial tree. The effect of right recurrent laryngeal nerve section was less specific; the innervation density was reduced by 21-39% in the trachea and bronchi of both sides. Capsaicin-induced neurogenic plasma leakage was decreased in the left mainstem bronchus and lobar bronchi after left thoracic vagus nerve section. It is concluded that the thoracic vagus nerve largely contributed to the sensory innervation in the ipsilateral bronchial airways and modulated their functions.
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Affiliation(s)
- T Hwang
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
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Chang LY, Wang HP, Wu MS, Huang HT, Wang HH, Lin CC, Lin JT. Anomalous pancreaticobiliary ductal union--an etiologic association of gallbladder cancer and adenomyomatosis. Hepatogastroenterology 1998; 45:2016-9. [PMID: 9951856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
BACKGROUND/AIMS Anomalous pancreaticobiliary ductal union (APBDU) has been proposed as a risk factor of gallbladder cancer. To clarify the frequency and the subtype distribution of APBDU in patients with gallbladder cancer and adenomyomatosis, a retrospective study was performed. METHODOLOGY The radiograms of endoscopic retrograde cholangiopancreaticography of 680 patients with well-documented biliary and pancreatic ducts from April 1992 to November 1996 were reviewed. The length of the common channel and insertion of the pancreatic duct and the bile duct were identified and recorded. RESULTS Gallbladder cancer and adenomyomatosis were identified in 8 and 12 patients, respectively. Patients with gallbladder cancer were significantly older (mean age: 66.5 years, p<0.01) than those with gallbladder adenomyomatosis (mean age: 42.7 years). APBDU was noted in 59 (8.7%) of 680 cases with complete pancreaticobiliary radiograms. Among them, 5 of 8 patients with gallbladder cancer coexisted with APBDU. Four (80%) belonged to the P-B type. Six of 12 patients with gallbladder adenomyomatosis had APBDU. Five (83.3%) belonged to P-B type. CONCLUSIONS Patients with gallbladder cancer and adenomyomatosis were frequently associated with APBDU. The close relationship and similar distribution of the P-B type of APBDU in both diseases suggest an etiologic association in various gallbladder diseases.
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Affiliation(s)
- L Y Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, ROC
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Abstract
Tachykinin-containing sensory axons originating from the cervical vagal nerves and the first several pairs of thoracic spinal nerves are involved in neurogenic inflammation evoked by capsaicin in the bronchial tree. Unilateral degeneration of the cervical vagal trunk by surgical lesion inhibits neurogenic inflammation in the ipsilateral bronchial airways. The vagal trunk has two main branches, the thoracic vagus nerve and recurrent laryngeal nerve in the thorax. The main purpose of this study was to determine whether the thoracic vagus nerve or recurrent laryngeal nerve was significantly involved in the neural control of bronchial inflammation in the rat. A novel and safe surgical procedure was used for selectively cutting the right thoracic vagal trunk, thoracic vagus nerve, or recurrent laryngeal nerve by introducing the surgical instrument through an aperture between the first and second ribs in the ventral wall of the rostral mediastinum. This surgical operation could be completed without causing a pneumothorax. After 2 postoperative weeks, the effects of denervation on capsaicin-induced plasma extravasation in the respiratory tract were tested. Either right thoracic vagal trunk transection or thoracic vagus section significantly decreased plasma extravasation in the right bronchial tree. Thoracic vagus section was obviously more effective. Evans blue extravasation in the right lobar bronchi was reduced by 44-78% after thoracic vagal trunk transection, while that in the right mainstem and lobar bronchi was reduced by 58-81% after thoracic vagus section. Area densities of India ink-labeled leaky blood vessels in the right lobar bronchi were reduced by 40-65% after thoracic vagal trunk transection, and those in the right mainstem and lobar bronchi were reduced by 83-88% after thoracic vagus neurectomy. Recurrent laryngeal neurectomy did not change the plasma extravasation induced by capsaicin in the trachea and bronchi. These results suggest that capsaicin-sensitive fibers running in the vagal trunk, which largely mediated neurogenic inflammation in the bronchial tree, were projected into the thoracic vagus nerve which, in turn, sent these nerve fibers to the ipsilateral bronchial tree. For the trachea, the remaining sensory fibers surviving denervation might provide sufficient tachykinins to trigger neurogenic inflammation.
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Affiliation(s)
- Y K Lo
- Department of Biology, National Sun Yat-Sen University, Kaohsiung, Taiwan, ROC
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42
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Abstract
OBJECTIVES Asymmetrical posture during static stance has been identified as a common problem in persons with hemiplegia. This study examined the effect of an activity-based therapy regimen on symmetric weight bearing and midline position of center of gravity (COG) in three adult subjects with hemiplegia. METHOD An ABAB single-subject design was used. The intervention program, including sanding in front of a standing table and play a bean bag game, was introduced for 30 min each day during each intervention phase. Quantitative measurements of the weight distribution and the midline position of COG were taken with the Balance Master System (version 2.20). RESULTS Visual inspection and statistical analysis of the data revealed a significant improvement in symmetric weight distribution and midline position of COG. The study suggests that this program may be a promising alternative to a variety of postural rehabilitation programs for persons with hemiplegia. CONCLUSION Insecurity caused by poor stabilization and abnormal reactions to body weight bearing in an antigravity position might contribute to asymmetric postures. Results of this study suggest that an activity-oriented program can be effective in helping the persons with hemiplegia achieve symmetric stances.
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Affiliation(s)
- S H Wu
- Department of Rehabilitation, Chang Gung Memorial Hospital, Taipei, Taiwan
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43
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Abstract
The present study was carried out to test if plasma extravasation induced by capsaicin (90 micrograms/kg) in the bronchi of Sprague-Dawley rats could be reduced 10-30 min (0 day), 20-24 h (1 day), 3, 7 or 14 days after unilateral midcervical vagotomy. The second aim of this study was to demonstrate if substance P (3 micrograms/kg) could intensify neurogenic plasma extravasation in the bronchi in which sensory innervation was partially deprived by vagotomy. In the rats 0 days after vagotomy (0 days postvagotomy) that received capsaicin, plasma extravasation in the mainstem and secondary bronchi ipsilateral to vagotomy did not decrease. Capsaicin-evoked plasma extravasation in the secondary bronchi ipsilateral to vagotomy decreased significantly 1, 3, 7 and 14 days after vagotomy as compared with that of 0 days postvagotomy. Differences in extravasation between the secondary bronchi of the two sides were usually significant in animals 3, 7 or 14 days postvagotomy. The effect of unilateral vagotomy on plasma extravasation in the mainstem bronchi was variable. Plasma extravasation produced by substance P in the mainstem and secondary bronchi of rats 0 days postvagotomy was similar to that of unoperated rats receiving either capsaicin or substance P. Unilateral vagotomy did not decrease the amount of substance-P-induced plasma extravasation in the mainstem or secondary bronchi ipsilateral to vagotomy in rat groups 1, 3, 7 or 14 days postvagotomy as compared with that of their contralateral bronchi. This study suggests that the secondary bronchi were the chief location of the bronchial tree that could be desensitized after unilateral cervical vagotomy to stimulation by the irritant capsaicin. This desensitization developed within 1 day after vagotomy, therefore the capsaicin-evoked neurogenic inflammation in the bronchi of the vagotomized side was reduced. Exogenous substance P resulted in mucosal edema and degranulation of goblet cells in the bronchi of both vagotomized and opposite sides. The number of mediator-sensitive blood venules did not decrease following vagotomy operation. It is suggested that substance P was insufficient after vagal denervation, but substance-P receptors on the endothelial cells and goblet cells in the denervated regions were still operative.
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Affiliation(s)
- H T Huang
- Department of Biology, National Sun Yat-Sen University, Taiwan
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44
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Huang HT. Unilateral cervical vagotomy decreases the magnitude of neurogenic inflammation induced by capsaicin in the ipsilateral bronchial tree of rats. Anat Embryol (Berl) 1993; 188:363-70. [PMID: 8279699 PMCID: PMC7087903 DOI: 10.1007/bf00185945] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Electrical stimulation of a single cervical vagus nerve produces neurogenic inflammation on the stimulated side of the bronchial tree, including the first (main) to the 4th order bronchi. In the contralateral bronchial tree, in contrast, only the proximal part of the main bronchus exhibits inflammatory changes, suggesting that vagal sensory axons present in the bronchi largely originate from the ipsilateral vagus nerve. Intravenous administration of capsaicin can evoke neurogenic inflammation in bilateral bronchial trees. Sensory axons from various sources are thought to be stimulated by this irritant. The extent to which neurogenic inflammation in both bronchial trees might be reduced by unilateral vagotomy is not known. In the present study, we sought to characterize the effect of unilateral cervical vagotomy on capsaicin-induced changes in plasma extravasation and secretory activity of goblet cells in the bronchial trees of both sides. To quantify the magnitude of neurogenic plasma extravasation, Evans blue was used as a tracer dye to measure spectrophotometrically its amount in the bronchial wall. Another tracer dye, Monastral blue, was used to localize the distribution of leaky blood vessels and to measure morphometrically their area density in the whole mounts. To investigate cell and tissue responses of the mucosa, histological methods were employed. After 2 or 4 postoperative weeks, the rats were intravenously administered with a single dose of capsaicin, 150 micrograms/kg. This resulted in different magnitudes of Evans blue extravasation in the bronchi of the two sides in vagotomized rats. Extravasation of Evans blue dye in the bronchial tree ipsilateral to vagotomy was one-half to two-thirds of that of the contralateral bronchial tree.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- H T Huang
- Department of Biology, National Sun Yat-Sen University, Kaohsiung, Taiwan, Republic of China
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45
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Tseng LL, Peng MJ, Kou HT, Huang HT, Tsai MF, Huang WC. [The use of rifampin in the treatment of infection due to Staphylococcus aureus]. Zhonghua Yi Xue Za Zhi (Taipei) 1991; 47:373-7. [PMID: 1649682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Infection due to Staphylococcus aureus continues to be a source of significant morbidity and mortality. However, its treatment is increasingly complicated by the rising prevalence of resistance to antibiotics. Apart from the two recognized modes of staphylococcal resistance, namely, penicillinase production and intrinsic resistance, Sabath and associates have described a third type in which resistance is manifested by susceptibility to growth inhibition but tolerance to the lethal action of bactericidal agents. The mechanism of tolerance is attributed to a deficiency of autolytic enzyme activity in the part of bacteria, possibly secondary to an inhibition of autolysins in the tolerant staphylococcal strains. These strains are found in patients with infections responding poorly to treatment with cell-wall active antibiotics including vancomycin. Because of its unique mechanism of action and pharmacokinetic properties, rifampin has been reported to be the most active among 65 antistaphylococcal agents tested and have the capacity to kill intraleukocytic staphylococci. We present 2 cases who were cured following the addition of rifampin to previously established regimens. Case 1 was a 40-year-old male who had fever, cough, dyspnea, a right elbow abscess and left leg swelling for 2 weeks prior to admission. Culture of purulent material from the elbow abscess grew staphylococcus aureus. Chest X-ray showed bilateral septic embolism and phleborheography showed partial deep vein occlusion of the left ileofemoral vein. Case 2 was 22-year-old female with fever, chills and cough for 3 weeks. Blood culture grew staphylococcus aureus, and Chest X-ray revealed bilateral septic embolism with pneumonia. Neither of them responded to standard antibiotics which were judged adequate by in vitro sensitivity tests. Clinical cure was later obtained after rifampin was added to the regimens. These results suggest that rifampin may be a useful adjunct in the therapy of staphylococcal infections.
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Affiliation(s)
- L L Tseng
- Department of Internal Medicine, Mackay Memorial Hospital
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46
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Huang HT, Liu KM, Her WY, Chiang CY. Effect of unilateral vagotomy on capsaicin-induced neurogenic inflammation in the trachea of rats. Gaoxiong Yi Xue Ke Xue Za Zhi 1990; 6:461-6. [PMID: 2213967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This study reports the effect of unilateral vagotomy on neurogenic inflammation in the trachea. Neurogenic inflammation was produced in the trachea of vagotomized rats by a venous injection of capsaicin, the pungent ingredient of red pepper. Monastral blue was used as tracer dye to label the affected blood vessels. Vagus nerves and tracheal tissues were processed for light and electron microscopy. The damaged right vagus nerve was found to have degenerated. However, unilateral vagotomy did not completely block neurogenic inflammation in the trachea ipsilaterally and contralaterally, as shown in the whole mount preparations. Microscopic observations of tracheal tissue sections showed that neurogenic inflammation did not evenly occur on both sides of the trachea. The possible reason for this is discussed.
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Affiliation(s)
- H T Huang
- Department of Biology, National Sun Yat-Sen University, Kaohsiung City, Taiwan, Republic of China
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47
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Abstract
Subcutaneous injections of monosodium L-glutamate (MSG) were administered, as a neurotoxin, at a dose of 4 mg/g body weight to rat pups on days 1 and 3 postnatally. Pinealectomy was performed at 6 weeks of age, and animals were allowed to mature. The intact MSG-treated rats showed a decrease of lordosis quotient in females and a reduction of ejaculation frequency and an increase in mount frequency in males. Pinealectomy caused no significant improvement on sexual behavior of the saline-treated normal rats, but it caused a marked improvement of the sexual receptivity in MSG-treated female rats and reinstated ejaculation in MSG-treated males. The circulatory sex steroid levels, estrogen in females and androgen in males, were not significantly different between the intact and pinealectomized MSG-treated groups in the respective sexes, whereas the progesterone level in females was significantly elevated in the pinealectomized MSG-treated group compared with the intact MSG-treated group. These findings suggest that the pineal gland plays an inhibitory role on the sexual behavior of MSG-treated rats and the improvement of sexual behavior following pinealectomy may be dependent on certain mechanisms other than the actions of circulatory androgens or estrogens.
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Affiliation(s)
- C Hsu
- Department of Physiology, Kaohsiung Medical College, Taiwan, Republic of China
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48
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Abstract
From May 1981 to Feb. 1989 trabeculectomy with per-operative topical application of mitomycin C was performed on eyes with refractory glaucoma. All eyes had undergone prior one, two or more than two antiglaucoma surgeries without success for IOP control. Other risk factors in the present series of eyes included young age, aphakia, rubeosis and glaucoma secondary to trauma or associated with anterior uveitis. 59 eyes underwent trabeculectomy with mitomycin application. 14 eyes were lost. 45 eyes of 42 cases, 33 eyes of 31 males and 12 eyes of 11 females were followed for a period of 1 to 8 years, an average 3.0 +/- 1.9 years. The success for IOP control less than 21 mmHg was 77.8%, 35/45 eyes. The success rates were 92%, 11/12 eyes in females and 73%, 24/33 eyes in males. Complications reported in 5-fluorouracil studies such as corneal epithelial toxicity and delayed healing of conjunctival wound were not encountered. The histo-pathological changes of wound healing after trabeculectomy with topical mitomycin application was discussed. In the healing process success to achieve filtration is more likely by pharmacolocally interferring with earlier steps in the process. We recommend the use of per-operative topical application of mitomycin C during trabeculectomy in eyes with uncontrolled glaucoma and poor prognosis, specifically after previous cataract extraction or unsuccessful antiglaucoma surgery.
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Affiliation(s)
- C W Chen
- Department of Ophthalmology, Kao-hsiung Medical College, Taiwan
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49
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Lee JJ, Hsu TC, Kao CR, Chou SY, Huang HT, Shin CC. [Mucocele of appendix-report of three cases]. Zhonghua Yi Xue Za Zhi (Taipei) 1989; 44:145-9. [PMID: 2819577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Mucocele of appendix comprises 0.07%-0.3% of the resection of appendix. Three such cases were encountered over the past four years at MMH. Tumor mass could be palpated before operation in two of our cases. The third case was found incidentally during sigmoid cancer resection. Mucocele of the appendix should be differentiated from submucosal lesion such as leiomyoma, lipoma, lymphoma in the cecum or appendiceal abscess. Recent advances of ultrasound, CAT scan as well as angiography have made correct preoperative diagnosis possible, yet literature still shows diverse opinion about its etiology (neoplastic vs. obstructive). Although most authors favor simple appendectomy for the management of this disease, some surgeons still think it should be managed aggressively with colectomy. Rupture of mucocele might result in pseudomyxoma peritonei and possibly a fetal outcome. Avoidance of iatrogenic rupture of appendix is essential. Aggressive removal of accessible masses and implants was suggested in the literature.
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50
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Abstract
The present study was performed to determine whether neurogenic inflammation in the rat trachea can be exaggerated by inhibiting neutral endopeptidase, an enzyme that degrades tachykinins that are believed to mediate neurogenic inflammation. Neurogenic inflammation was produced by antidromic electrical stimulation of one vagus nerve (2.5 Hz, 1 ms, 5 V for 5 min) in the presence of atropine or by an intravenous injection of capsaicin (100 micrograms/kg). Neutrophils that adhered to the endothelium of venules were visualized and counted in tracheal whole mounts that were stained by a histochemical reaction for myeloperoxidase. Neural inflammation increased the number of adherent neutrophils. Pretreatment with the neutral endopeptidase inhibitor phosphoramidon (1.0 or 2.5 mg/kg iv) increased neutrophil adhesion induced by neural inflammation. As assessed by the amount of extravasation of Monastral blue pigment, neural inflammation also increased vascular permeability, and this change was potentiated by phosphoramidon. These results are consistent with the concept that neuropeptides released from sensory nerves in the tracheal mucosa cause neutrophils to adhere to venules and increase vascular permeability and that these effects are modulated by neutral endopeptidase.
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Affiliation(s)
- E Umeno
- Department of Medicine, University of California, San Francisco 94143-0130
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