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Mehallah H, Djebli N, Ngoc Khanh P, Xuan Ha N, Thi Ha V, Thu Huong T, Dinh Tung D, Manh Cuong N. In silico and in vivo study of anti-inflammatory activity of Morinda longissima (Rubiaceae) extract and phytochemicals for treatment of inflammation-mediated diseases. J Ethnopharmacol 2024; 328:118051. [PMID: 38493905 DOI: 10.1016/j.jep.2024.118051] [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: 12/10/2023] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditionally, the plant Morinda longissima Y.Z.Ruan (Rubiaceae) is used by ethnic people in Vietnam for the treatment of liver diseases and hepatitis. AIM OF THE STUDY The study was designed to assess the efficacy of the 95% ethanolic extract of Morinda longissima roots (MLE) in experimental immune inflammation. The phytochemical variation of root extract and the chemical structures of natural compounds were also investigated using HPLC-DAD-HR-MS analysis. MATERIALS AND METHODS Three different doses (100, 200, and 300 mg/kg b.w.) of MLE were chosen to determine anti-inflammatory activity. The mice were given orally extracts and monitored their behavior and mortality for 14 days to evaluate acute toxicity. The volume of the paw and the histopathological evaluation were carried out. The polyphenolic phytoconstituents of MLE extract were identified using LC/MS analysis. The anti-inflammatory efficacy in silico and molecular docking simulations of these natural products were evaluated based on their cyclooxygenase (COX)-1 and 2 inhibitory effects. RESULTS This investigation showed the 95% ethanolic extract of Morinda longissima roots was found non-toxic up to 2000 mg/kg dose level in an acute study, neither showed mortality nor treatment-related signs of toxicity in mice. Eight anthraquinones and anthraquinone glycosides of Morinda longissima roots were identified by HPLC-DAD-HR-MS analysis. In the in vivo experiments, MLE was found to possess powerful anti-inflammatory activities in comparison with diclofenac sodium. The highest anti-inflammatory activity of MLE in mice was observed at a dose of 300 mg/kg body weight. The in silico analysis showed that seven out the eight anthraquinones and anthraquinone glycosides possess a selectivity index RCOX-2/COX-1 lower than 1, indicating that these compounds are selective against the COX-2 enzyme in the following the order: rubiadin-3-methyl ether < morindone morindone-6-methyl ether < morindone-5-methyl ether < damnacanthol < rubiadin < damnacanthol-3-O-β-primeveroside. The natural compounds with the best selectivity against the COX-2 enzyme are quercetin (9), rubiadin-3-methyl ether (7), and morindone (4), with RCOX2/COX1 ratios of 0.02, 0.03, and 0.19, respectively. When combined with the COX-2 protein in the MD research, quercetin and rubiadin-3-methyl ether greatly stabilized the backbone proteins and ligands. CONCLUSION In conclusion, the anthraquinones and ethanolic extract of Morinda longissima roots may help fight COX-2 inflammation. To develop novel treatments for inflammatory disorders linked to this one, these chemicals should be investigated more in the future.
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Affiliation(s)
- Hafidha Mehallah
- Pharmacognosy & Api Phytotherapy Laboratory, Abdelhamid Ibn Badis University Mostaganem (27000), Algeria
| | - Noureddine Djebli
- Pharmacognosy & Api Phytotherapy Laboratory, Abdelhamid Ibn Badis University Mostaganem (27000), Algeria.
| | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam; Graduated University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam; Graduated University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Vu Thi Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Do Dinh Tung
- Saint Paul General Hospital, 12A Chu Van An Street, Ba Dinh District, Hanoi, Viet Nam
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam; Graduated University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
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Thuy LT, Tram LH, Anh DTP, My NTT, Thong NV, Anh NT, Toan DH, Ha TT, Thanh BV, Mai NTN, Linh NN, Le DD, Huong TT, Bach NV. New Dibenzocyclooctadiene Lignans and Phenolics from Kadsura heteroclite with Anti-Inflammatory Activity. Chem Biodivers 2023; 20:e202300904. [PMID: 37550247 DOI: 10.1002/cbdv.202300904] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/09/2023]
Abstract
A chemical investigation of K. heteroclite led to isolation of two new dibenzocyclooctadienes (1 and 2) together with 14 known compounds (3-16) by using multiple chromatographic techniques. New compounds (1 and 2) were obtained and identified by spectroscopic methods (HR-ESI-MS, 1D and 2D NMR, and ECD) as well as by comparison of their experimental data with those reported in the literatures. All the isolates were evaluated for their ability to modulate TNF-α production in lipopolysaccharide (LPS) stimulated RAW264.7 cells. Among them, compound 5 displayed the most inhibition against tumor necrosis factor (TNF)-α production with IC50 value of 6.16±0.14 μM. Whereas, compounds (1, 3, and 6) showed the significant inhibition (IC50 values ranging from 9.41 to 14.54 μM), and compounds (2, 4, 9, 10, 13, 15, and 16) exhibited moderate inhibition (IC50 values ranging from 19.27 to 40.64 μM) toward TNF-α production, respectively.
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Affiliation(s)
- Le Thi Thuy
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Le Huyen Tram
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Dinh Thi Phuong Anh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Nguyen Thi Thuy My
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Nguyen Van Thong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Nguyen Tuan Anh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Dao Huy Toan
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
| | - Tran Thu Ha
- Intellectual Property Office of Vietnam, Hanoi, 100000, Vietnam
| | - Bui Van Thanh
- Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, 100000, Vietnam
| | - Nguyen Thi Ngoc Mai
- College of Pharmacy, Thanh Do University, Kim Chung, Hoai Duc, Hanoi, 10000, Vietnam
| | - Nguyen Ngoc Linh
- College of Pharmacy, Thanh Do University, Kim Chung, Hoai Duc, Hanoi, 10000, Vietnam
| | - Duc-Dat Le
- College of Pharmacy, Thanh Do University, Kim Chung, Hoai Duc, Hanoi, 10000, Vietnam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam
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Cuong NM, Khanh PN, Nhung LTH, Ha NX, Huong TT, Bauerova K, Kim YH, Tung DD, Thuy TT, Anh NTH. Acetylcholinesterase inhibitory activities of some flavonoids from the root bark of Pinus krempfii Lecomte: in vitro and in silico study. J Biomol Struct Dyn 2023:1-14. [PMID: 37325850 DOI: 10.1080/07391102.2023.2223664] [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: 01/29/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
From the root bark of Pinus krempfii Lecomte, four flavonoids were isolated and evaluated for their inhibitory activities against AChE and BChE enzymes in vitro and in silico. Tectochrysin (1) was found to inhibit AChE with an IC50 value of 33.69 ± 2.80 μM. The docking study results also showed agreement with the in vitro test results. All four compounds also showed the best binding affinity for the AChE enzyme, characterised by binding energy (ΔG) values as low as -8.1 to -9.3 kcal/mol, in which, the compound tectochrysin had the best binding affinity for the AChE protein with a ΔG value of -9.329 kcal/mol. Tectochrysin (1) was also bound to the amino acid Phe295 of AChE with a bond length of 2.8 Å, similar to the control dihydrotanshinone-I. Galangin (2) also showed its in vitro inhibitory activity against BChE with an IC50 value of 82.21 ± 2.70 μM. In silico, it also had the best binding energy value of -9.072 kcal/mol with BChE and formed hydrogen bonds with the His438 (2.85 Å) residues of BChE like the positive control (tacrine). The steered molecular dynamics (SMD) simulation results of these two complexes revealed a mechanistic insight that the protein-ligand complexes showed stable trajectories throughout the 20 and 150 ns simulations. Moreover, the drug likeliness suggested that both flavonoids (1 and 2) were expected to be drug-like and have an LD50 toxicity level of 5. This study has contributed new results for drug discovery and the development of substances with neuroprotective effects, especially for the treatment of Alzheimer's disease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Le Thi Hong Nhung
- Faculty of Chemical Technology, Hanoi University of Industry, Bac Tu Liem District, Hanoi, Vietnam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Katarina Bauerova
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Karlova Ves, Slovakia
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, South Korea
| | | | - Trinh Thi Thuy
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Mostefa N, Djebli N, Khanh PN, Ha NX, Anh HTN, Ha VT, Huong TT, Anh DV, Cuong NM. Anti-Alzheimer's Activity of Polyphenolic Stilbene-Rich Acetone Fraction of the Oil-Removed Seeds of Passiflora edulis: in Vivo and in Silico Studies. Chem Biodivers 2023; 20:e202201051. [PMID: 37032441 DOI: 10.1002/cbdv.202201051] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/28/2023] [Accepted: 04/06/2023] [Indexed: 04/11/2023]
Abstract
The stilbene-rich acetone fraction in high yield (6.6 %, PEAS) of Passiflora edulis Sims was prepared and evaluated for neuroprotective activity in murine Alzheimer's disease model induced by aluminum chloride and D-galactose. The phytochemical and HPLC-DAD-MS analysis of the polyphenolic stilbene-rich acetone fraction showed that it contained different stilbenes including trans-piceatannol, scirpusins A-B and cassigarol E. The total phenolic content (TPC) of PEAS was 413.87±1.71 mg GAE eqv/g. The neuroprotective activity of PEAS is typically presented in the Morris water maze-reference Spatial Memory test, where the Alzheimer's mice treated at 100 mg/kg (Alz-ED1) and 200 mg/kg (Alz-ED2) spent less than 47 % and 66 % of the time, respectively, than the Alzheimer's model mice (Alz). Two simple stilbenes, trans-piceatannol and trans-resveratrol, showed selectively inhibitory activity in silico against acetylcholinesterase (AChE). Two stilbene dimers, cassigarol E and scirpusin A, exhibited low nanomolar inhibitory potential against AChE and butyrylcholinesterase (BChE), significantly lower than those of the positive control, donepezil and tacrine. These findings suggest that the stilbenes from P. edulis seeds, particularly the stilbene dimers, warrant further investigation as potential neuroprotective candidates in the prevention of cognitive deficits associated with Alzheimer's disease.
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Affiliation(s)
- Nadjet Mostefa
- Pharmacognosy & Api Phytotherapy Laboratory, Abdelhamid Ibn Badis University Mostaganem, Mostaganem, 27000, Algeria
| | - Noureddine Djebli
- Pharmacognosy & Api Phytotherapy Laboratory, Abdelhamid Ibn Badis University Mostaganem, Mostaganem, 27000, Algeria
| | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, 122100, Vietnam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
| | - Hoang Thi Ngoc Anh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
| | - Vu Thi Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
| | - Dang Viet Anh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 122100, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, 122100, Vietnam
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Khuyen HT, Huong TT, Van ND, Huong NT, Vu N, Lien PT, Nam PH, Nghia VX. Synthesis of Multifunctional Eu(III) Complex Doped Fe 3O 4/Au Nanocomposite for Dual Photo-Magnetic Hyperthermia and Fluorescence Bioimaging. Molecules 2023; 28:molecules28020749. [PMID: 36677807 PMCID: PMC9865881 DOI: 10.3390/molecules28020749] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023]
Abstract
In this paper, the luminescent complex Eu(3-thenoyltrifluoroacetonate)3 was integrated with Fe3O4 and gold (Au) nanoparticles to form a multifunctional nanocomposite, Fe3O4/Au/Eu(TTA)3 (FOASET NC), for dual magnetic-photothermal therapy and biomedical imaging. Upon functionalization with amine-NH2, the FOASET NC exhibits a small size of 60-70 nm and strong, sharp emission at λmax = 614 nm, enhanced by surface plasmon resonance (SPR) of Au nanoparticles that provided an effective label for HT29 colorectal cancer cells by fluorescence microscopy imaging. In addition, a hyperthermia temperature (42-46 °C) was completely achieved by using these FOASET NCs in an aqueous solution with three heating modes for (i) Magnetic therapy (MT), (ii) Photothermal therapy (PT), and (iii) Dual magnetic-photothermal therapy (MPT). The heating efficiency was improved in the dual magnetic-photothermal heating mode.
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Affiliation(s)
- Hoang Thi Khuyen
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Department of Materials Science and Energy, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Correspondence: or ; Tel.: +84-4-973756768
| | - Tran Thu Huong
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Department of Materials Science and Energy, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Nguyen Duc Van
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Nguyen Thanh Huong
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Department of Materials Science and Energy, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Nguyen Vu
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Pham Thi Lien
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Pham Hong Nam
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Vu Xuan Nghia
- 108 Military Central Hospital, 01 Tran Hung Dao, Hai Ba Trung, Hanoi 100000, Vietnam
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Son TQ, Hoc TH, Thanh Tung T, Long VD, Dat NT, Dinh NQ, Huong TT. Laparoscopic Surgery for Intestinal Obstruction Caused by an Internal Paracecal Hernia. Case Rep Gastroenterol 2022; 16:480-487. [PMID: 36157602 PMCID: PMC9459529 DOI: 10.1159/000525516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022] Open
Abstract
Paracecal hernia is rarely associated with ischemia and has seldom been reported in the few published studies in the review literature. We present a case of incarcerated paracecal hernia with intestinal obstruction that was effectively treated with laparoscopic intervention. A 64-year-old woman who had not previously undergone any intestinal surgery arrived complaining of abdominal pain and vomiting at our hospital. Abdominal computed tomography suggested intestinal obstruction. A laparoscopic emergency procedure demonstrated an incarcerated small bowel loop in the paracecal region. The confined small bowel was removed from the paracecal area. On the fourth postoperative day, the patient was discharged. This case is unusual because the patient presented with small bowel strangulation, leading to intestinal obstruction. Laparoscopic surgery is beneficial for diagnosing internal hernias and curing small-bowel obstructions caused by paracecal hernias.
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Affiliation(s)
- Tran Que Son
- Department of Surgery, Hanoi Medical University, Hanoi, Vietnam
- Centre of Emergency Medicine (A9), Bachmai Hospital, Hanoi, Vietnam
- *Tran Que Son,
| | - Tran Hieu Hoc
- Department of Surgery, Hanoi Medical University, Hanoi, Vietnam
| | - Tran Thanh Tung
- Centre of Emergency Medicine (A9), Bachmai Hospital, Hanoi, Vietnam
| | - Vu Duc Long
- Centre of Emergency Medicine (A9), Bachmai Hospital, Hanoi, Vietnam
| | - Nguyen Tien Dat
- Centre of Emergency Medicine (A9), Bachmai Hospital, Hanoi, Vietnam
| | | | - Tran Thu Huong
- Department of Pharmacy, Bachmai Hospital, Hanoi, Vietnam
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Son TQ, Hoc TH, Huong TT, Dinh NQ, Van Tuyen P. A ruptured pancreatic pseudocyst causes acute peritonitis with clinical characteristics of a gastrointestinal tract perforation. J Surg Case Rep 2022; 2022:rjac164. [PMID: 35665383 PMCID: PMC9154066 DOI: 10.1093/jscr/rjac164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/07/2022] [Accepted: 03/18/2022] [Indexed: 11/14/2022] Open
Abstract
Intraperitoneal air in pancreatic pseudocysts is a rare complication that can jeopardize hemodynamic stability and requires emergency surgery. A 61-year-old man was admitted to our hospital after abdominal pain, vomiting and diarrhea. Computed tomography showed a hollow visceral perforation with intraperitoneal air and two pseudocysts close to the pancreas. The patient was transferred to the emergency operating room with symptoms of septic shock. We histopathologically diagnosed a ruptured pancreatic pseudocyst combined with an intracystic haemorrhage. We resected a portion of the pseudocyst wall using surface electrocautery inside the lumen, cholecystectomy and peritoneal toilet and maintained adequate external drainage. The patient was discharged on postoperative Day 12. The patient achieved relapse-free survival for 12 months postoperatively. Ruptured pancreatic pseudocysts with extraluminal gas are dangerous if effective medical interventions are not performed. Emergency surgery should be completed as soon as possible to drain the pancreatic cyst and cleanse the abdomen.
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Affiliation(s)
- Tran Que Son
- Department of Surgery, Hanoi Medical University, No. 1 Ton That Tung, Dong Da District, Hanoi, Vietnam
| | - Tran Hieu Hoc
- Department of Surgery, Hanoi Medical University, No. 1 Ton That Tung, Dong Da District, Hanoi, Vietnam
| | - Tran Thu Huong
- Department of Pharmacy, Bachmai Hospital, 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
| | - Ngo Quang Dinh
- Radiology Center - Bach Mai Hospital, 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
| | - Pham Van Tuyen
- Pathology Center - Bach Mai Hospital, 78 Giaiphong Road, Dong Da District, Hanoi, Vietnam
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Giang VH, Thuy LT, Hanh TTH, Cuong NX, Vinh LB, Ban NK, Linh TM, Mai NC, Huong TT, Dang NH, Oh H, Lee DS, Quang TH. Cytotoxic and nitric oxide inhibitory activities of triterpenoids from Lycopodium clavatum L. Nat Prod Res 2022; 36:6232-6239. [PMID: 34989301 DOI: 10.1080/14786419.2021.2024824] [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: 10/19/2022]
Abstract
Using combined chromatographic separation techniques, three new triterpenoids named lycomclavatols A-C (1-3), a new natural product, methyl lycernuate-A (4), as well as seven known compounds (5-11), were isolated from the methanol extract of the whole plants of Lycopodium clavatum. Their chemical structures were established based on 1 D/2D NMR and HR-ESI-MS spectroscopic analyses. Among the isolates, compound 1 exhibited inhibitory activity on NO production in LPS-stimulated BV2 cells (IC50 = 36.0 μM). In addition, 1 was cytotoxic against both HepG2 and A549 cancer cell lines, with IC50 values of 40.7 and 87.0 μM, respectively. Compounds 10 and 11 showed cytotoxicity on only HepG2 and A549 cells, with IC50 values of 91.2 and 57.6 μM, respectively. Our results contribute to understanding more the secondary metabolites produced by L. clavatum and provide a scientific rationale for further investigations of anti-inflammatory and anticancer effects for this valuable medicinal plant.
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Affiliation(s)
- Vu Huong Giang
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Le Thi Thuy
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tran Thi Hong Hanh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Le Ba Vinh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Ninh Khac Ban
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran My Linh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Chi Mai
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Hai Dang
- University of Science and Technology of Hanoi, VAST, Hanoi, Vietnam
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Dong-Sung Lee
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Tran Hong Quang
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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Tram LH, Van Thong N, Thuy LT, Anh NT, Minh NH, Minh TT, Thi Hong Phuong N, Ha TT, Nguyet Nguyen TM, Le DD, Hiep ND, Park JT, Thi To Chinh T, Thu Huong T, Lee M. Secondary metabolites from Valeriana jatamansi with their anti-inflammatory activity. Nat Prod Res 2021; 36:4620-4629. [PMID: 34812687 DOI: 10.1080/14786419.2021.2004600] [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: 10/19/2022]
Abstract
Valeriana jatamansi is hired as multiple remedies for treatment of insomnia, blood and circulatory disorders, asthma, dry cough, jaundice, seminal weakness, cardiac debility, and skin diseases in Vietnam. Our research discovered the phytochemical investigation of constituents from this herbal medicine resulted in the isolation of two new compounds (jatamansides A (4) and B (7)) together with 16 known ones from the whole plant. Their structures were established by using spectroscopic techniques (multinuclear and multidimensional nuclear magnetic resonance, infrared, ultraviolet-visible), mass spectrometry, hydrolysis analysis, or comparing their NMR data to those reported in the literature. In addition, all the isolates were evaluated for their inhibitory effect against TNF-α production in LPS-stimulated on RAW264.7 cells with significant inhibition.
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Affiliation(s)
- Le Huyen Tram
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Van Thong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Le Thi Thuy
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Hoang Minh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tran Thi Minh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Hong Phuong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tran Thu Ha
- Intellectual Property Office of Vietnam, Hanoi, Vietnam
| | | | - Duc Dat Le
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Nguyen Dinh Hiep
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Jong-Tae Park
- Department of Food Science and technology, Chungnam National University, Daejeon, Republic of Korea
| | | | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Mina Lee
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon-si, Korea
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10
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Minh TT, Toan HK, Anh HTL, Huong TT, Thao DT, Hoang VD. Chemical Constituents from the Leaves of Pachyrhizus erosus Collected in Vietnam. Chem Pharm Bull (Tokyo) 2021; 69:1136-1139. [PMID: 34719597 DOI: 10.1248/cpb.c21-00614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/22/2022]
Abstract
A phytochemical investigation of methanol extract from leaves of Pachyrhizus erosus (L.) Urban, a leguminous shrub distributed in Vietnam and other tropical and subtropical countries led to the isolation of a new prenylated chalcone, erosusone (1) and a new megastigmane glycoside epimer, 3-episedumoside F1 (9), together with thirteen known compounds including flavonoids (2-6), a 3-benzoxepine lactone (7), a pyridine-4,5-diol derivative (8), megastigmanes and megastigmane glycosides (10-15). Their structures were elucidated by means of high resolution-electrospray ionization (HR-ESI)-MS, one dimensional (1D) and two-dimensional NMR (2D-NMR) spectroscopy as well as comparison with the data reported in the literature. The cytotoxic effects on LU-1 (lung carcinoma), HepG2 (hepatocellular carcinoma), and MCF7 (breast carcinoma) cell lines were assessed. Prenylated chalcones 1-2 and isoflavone 3 exhibited cytotoxicity against all tested cell lines with IC50 values ranging from 22.04 to 45.03 µM.
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Affiliation(s)
- Tran Thi Minh
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Ho Khanh Toan
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Hoang Thi Lan Anh
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST)
| | - Vu Dinh Hoang
- School of Chemical Engineering, Hanoi University of Science and Technology
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11
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Giang VH, Thuy LT, Cham PT, Vinh LB, Ban NK, Linh TM, Mai NC, Hoe PT, Huong TT, Dang NH, Oh H, Quang TH. Chemical constituents from Lycopodiella cernua and their anti-inflammatory and cytotoxic activities. Nat Prod Res 2021; 36:4045-4051. [PMID: 34498971 DOI: 10.1080/14786419.2021.1958807] [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: 10/20/2022]
Abstract
Phytochemical investigation of the whole plants of Lycopodiella cernua resulted in the isolation and identification of three new compounds (1-3), namely lycocernuaside E (1), lycernuic ketone F (2), and lycernuic B (3) and 12 known ones (4-15). Their chemical structures were established based on 1 D/2D NMR spectroscopic and HR-ESI-MS data analyses. Compounds 5, 12, and 13 displayed NO inhibitory effects in LPS-stimulated BV2 cells, with IC50 values of 21.2 ± 1.1, 28.5 ± 1.4, and 21.9 ± 1.1 µM, respectively. In addition, cytotoxic activity of the isolated compounds against MCF7 (breast carcinoma), HepG2 (hepatocarcinoma), and SK-Mel2 (melanoma) cancer cell lines were also reported.
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Affiliation(s)
- Vu Huong Giang
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Le Thi Thuy
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Pham Thi Cham
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Le Ba Vinh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Ninh Khac Ban
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran My Linh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Chi Mai
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Pham Thi Hoe
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Hai Dang
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Tran Hong Quang
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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12
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Thu Huong T, Thi Phuong H, Thi Vinh L, Thi Khuyen H, Thi Thao D, Dac Tuyen L, Kim Anh T, Quoc Minh L. Upconversion NaYF 4:Yb 3+/Er 3+@silica-TPGS Bio-Nano Complexes: Synthesis, Characterization, and In Vitro Tests for Labeling Cancer Cells. J Phys Chem B 2021; 125:9768-9775. [PMID: 34415749 DOI: 10.1021/acs.jpcb.1c05472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fluorescence imaging is an important technique used for early diagnosis and effective treatment of some incurable diseases including cancer. Herein, we report novel NaYF4:Yb3+/Er3+@silica-TPGS bio-nano complexes for labeling cancer cells. The NaYF4:Yb3+/Er3+ nanoparticles have been successfully synthesized via a hydrothermal route, further coated with a silica shell, and functionalized with d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS). The experimental results indicate that NaYF4:Yb3+/Er3+@silica-TPGS emits stronger upconversion luminescence than NaYF4:Yb3+/Er3+ under an excitation of 980 nm. More significantly, the NaYF4:Yb3+/Er3+@silica-TPGS bio-nano complexes could strongly label MCF-7 breast cancer cells for in vitro experiments detected by a fluorescence microscope. On the other hand, the complex could not typically probe healthy cells, which are HEK-293A human embryonic kidney cells, under the same experimental conditions. Because of their strong upconversion luminescence, good dispersibility, and biocompatibility, NaYF4:Yb3+/Er3+@silica-TPGS bio-nano complexes can be a promising candidate/probe for biomedical labeling and diagnostics.
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Affiliation(s)
- Tran Thu Huong
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Ha Thi Phuong
- Hanoi Medical University, 1 Ton That Tung, Hanoi 100000, Vietnam
| | - Le Thi Vinh
- Hanoi University of Mining and Geology, 18 Pho Vien, Hanoi 100000, Vietnam
| | - Hoang Thi Khuyen
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Le Dac Tuyen
- Hanoi University of Mining and Geology, 18 Pho Vien, Hanoi 100000, Vietnam
| | - Tran Kim Anh
- Institute of Theoretical and Applied Research, Duy Tan University, 1 Phung Chi Kien, Hanoi 100000, Vietnam
| | - Le Quoc Minh
- Institute of Theoretical and Applied Research, Duy Tan University, 1 Phung Chi Kien, Hanoi 100000, Vietnam
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13
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Que Son T, Hieu Hoc T, Duc Long V, Thanh Tung T, Van Tuyen P, Toan Thang N, Thu Huong T. Laparoscopic Surgery for Diagnosis and Treatment of Acute Right Upper-Quadrant Abdominal Pain Due to Omental Infarction: A Report of a Rare Case in a Single Vietnamese Hospital. Am J Case Rep 2021; 22:e931098. [PMID: 34314403 PMCID: PMC8323740 DOI: 10.12659/ajcr.931098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Indexed: 11/20/2022]
Abstract
Case series Patients: Female, 56-year-old • Female, 58-year-old Final Diagnosis: Omental infarction • omental torsion Symptoms: Abdominal and/or epigastric pain • nausea • right upper quadrant pain • vomiting Medication: — Clinical Procedure: Laparoscopic ometectomy • omentectomy Specialty: Surgery
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Affiliation(s)
- Tran Que Son
- Department of Surgery, Hanoi Medical University, Hanoi, Vietnam.,Department of Emergency, Bachmai University Hospital, Hanoi, Vietnam
| | - Tran Hieu Hoc
- Department of Surgery, Hanoi Medical University, Hanoi, Vietnam
| | - Vu Duc Long
- Department of Emergency, Bachmai University Hospital, Hanoi, Vietnam
| | - Tran Thanh Tung
- Department of Emergency, Bachmai University Hospital, Hanoi, Vietnam
| | - Pham Van Tuyen
- Histopathology Center, Bachmai University Hospital, Hanoi, Vietnam
| | - Nguyen Toan Thang
- Department of Anesthesia, Bachmai University Hospital, Hanoi, Vietnam
| | - Tran Thu Huong
- Department of Pharmacy, Bachmai University Hospital, Hanoi, Vietnam
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14
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Tram LH, Thu Huong T, Thi Thuy L, Van Thong N, Tuan Anh N, Hoang Minh N, Thu Ha T, Anh Dung D, Thao NP, Thuong PT, Le DD, Hiep ND, Shin HJ. A new triterpenoid from the stems of Kadsura coccinea with antiproliferative activity. Nat Prod Res 2021; 36:2542-2546. [PMID: 34075849 DOI: 10.1080/14786419.2021.1914612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/21/2022]
Abstract
A series of schiartane C29 nortriterpenoids with 5/5/7/6/5 membered consecutive rings (1‒5) with an unique schinortriterpenoid skeleton including a new, kadcoccilactone V (1), together with four known ones (2‒5) and three known triterpenoids (6‒8) were identified from stems of Kadsura coccinea (Lem.) A. C. Smith. The structures of 1 and known compounds were elucidated by interpretation of 1D and 2D NMR, and HR-ESI-MS data as well as comparing those data in the literature. All the isolated compounds were examined for cytotoxic effects against six human cancer cell lines [(HCT-15 (colon), NUGC-3 (stomach), NCI-H23 (lung), ACHN (renal), PC-3 (prostate), and MDA-MB-231 (breast)]. Among them, compound 6 showed potent cytotoxicity against NCI-H23 (GI50 1.28 µM) and NUGC-3 (GI50 1.28 µM), and significantly inhibited on PC-3, MDA-MB-231, ACHN, HCT-15 with GI50 values around 2.33 to 2.67 µM.
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Affiliation(s)
- Le Huyen Tram
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Le Thi Thuy
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Van Thong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Hoang Minh
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Tran Thu Ha
- Intellectual Property Office of Vietnam, Hanoi, Vietnam
| | - Dao Anh Dung
- Intellectual Property Office of Vietnam, Hanoi, Vietnam
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Phuong Thien Thuong
- Biotechnology Department, Vietnam - Korea Institute of Science and Technology, Hanoi, Vietnam
| | - Duc Dat Le
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Nguyen Dinh Hiep
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Hee Jae Shin
- Department of Marine Biotechnology, University of Science and Technology (UST), Daejeon, Korea.,Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, Busan, Korea
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15
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Cuong NM, Son NT, Nhan NT, Khanh PN, Huong TT, Tram NTT, Sgaragli G, Ahmed A, Trezza A, Spiga O, Fusi F. Vasorelaxing Activity of R-(-)-3'-Hydroxy-2,4,5-trimethoxydalbergiquinol from Dalbergia tonkinensis: Involvement of Smooth Muscle CaV1.2 Channels. Planta Med 2020; 86:284-293. [PMID: 31994147 DOI: 10.1055/a-1099-2929] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Dalbergia species heartwood, widely used in traditional medicine to treat various cardiovascular diseases, might represent a rich source of vasoactive agents. In Vietnam, Dalbergia tonkinensis is an endemic tree. Therefore, the aim of the present work was to investigate the vascular activity of R-(-)-3'-hydroxy-2,4,5-trimethoxydalbergiquinol isolated from the heartwood of D. tonkinensis and to provide circular dichroism features of its R absolute configuration. The vascular effects of R-(-)-3'-hydroxy-2,4,5-trimethoxydalbergiquinol were assessed on the in vitro mechanical activity of rat aorta rings, under isometric conditions, and on whole-cell Ba2+ currents through CaV1.2 channels (IBa1.2) recorded in single, rat tail main artery myocytes by means of the patch-clamp technique. R-(-)-3'-Hydroxy-2,4,5-trimethoxydalbergiquinol showed concentration-dependent, vasorelaxant activity on both endothelium-deprived and endothelium intact rings precontracted with the α 1 receptor agonist phenylephrine. Neither the NO (nitric oxide) synthase inhibitor Nω-nitro-L-arginine methyl ester nor the cyclooxygenase inhibitor indomethacin affected its spasmolytic activity. R-(-)-3'-Hydroxy-2,4,5-trimethoxydalbergiquinol-induced vasorelaxation was antagonized by (S)-(-)-Bay K 8644 and unaffected by tetraethylammonium plus glibenclamide. In patch-clamp experiments, R-(-)-3'-hydroxy-2,4,5-trimethoxydalbergiquinol inhibited IBa1.2 in a concentration-dependent manner and significantly decreased the time constant of current inactivation. R-(-)-3'-Hydroxy-2,4,5-trimethoxydalbergiquinol likely stabilized the channel in its closed state, as suggested by molecular modelling and docking simulation to the CaV1.2 channel α 1c subunit. In conclusion, D. tonkinensis species may represent a source of agents potentially useful for the development of novel antihypertensive drugs.
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Affiliation(s)
- Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Ngu Truong Nhan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Science and Technology, Tay Nguyen University, Daklak, Vietnam
| | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Thu Tram
- Department of Chemistry, Faculty of Science, Can Tho University of Medicine and Pharmacy, Can Tho, Vietnam
| | - Giampietro Sgaragli
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - Amer Ahmed
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - Alfonso Trezza
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Ottavia Spiga
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - Fabio Fusi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
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16
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Minh TT, Ngoan TT, Thuong NTM, Toan HK, Truong NX, Huong TT, Ly GTP, Ai DTT, Khanh ND. Chemical compositions and bioefficacy against Spodoptera litura
of essential oil and ethyl acetate fraction from Myoporum bontioides
leaves. VJCH 2020. [DOI: 10.1002/vjch.201900086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tran Thi Minh
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Tran Thi Ngoan
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Nguyen Thi Minh Thuong
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Ho Khanh Toan
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Nguyen Xuan Truong
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Giang Thi Phuong Ly
- School of Chemical Engineering, Hanoi University of Science and Technology 1; Dai Co Viet, Hai Ba Trung Hanoi 10000 Viet Nam
| | - Doan Thi Thuy Ai
- Vietnam National University of Agriculture; Ngo Xuan Quang Street, Trau Quy, Gia Lam Hanoi 10000 Viet Nam
| | - Nguyen Duc Khanh
- Vietnam National University of Agriculture; Ngo Xuan Quang Street, Trau Quy, Gia Lam Hanoi 10000 Viet Nam
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17
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Hanh TTH, My NTT, Cham PT, Quang TH, Cuong NX, Huong TT, Nam NH, Minh CV. Diterpenoids and Flavonoids from Andrographis paniculata. Chem Pharm Bull (Tokyo) 2020; 68:96-99. [PMID: 31902905 DOI: 10.1248/cpb.c19-00662] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chemical investigation of the aerial parts of Andrographis paniculata resulted in isolation of nine compounds, including a new ent-labdane diterpenoid, andrographic acid methyl ester (1), a new chalcone glucoside, pashanone glucoside (5), and seven known metabolites, andrograpanin (2), andrographolide (3), andropanolide (4), andrographidine A (6), andrographidine F (7), 6-epi-8-O-acetyl-harpagide (8), and curvifloruside F (9). Their chemical structures were elucidated based on comprehensive analyses of the spectroscopic data, including NMR and MS. Among the isolated compounds, andropanolide exerted cytotoxicity toward LNCaP, HepG2, KB, MCF7, and SK-Mel2 carcinoma cells, with IC50 values ranging from 31.8 to 45.9 µM. In addition, andropanolide significantly inhibited the overproduction of nitric oxide (NO) in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages, with an IC50 value of 13.4 µM.
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Affiliation(s)
- Tran Thi Hong Hanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Thi Thuy My
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Pham Thi Cham
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
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18
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Khuyen HT, Huong NT, Huong TT, Lien PT, Thu DTA, Huong NTA, Strek W, Minh LQ. Luminescent and magnetic properties of multifunctional europium(III) complex based nanocomposite. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2019.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Phuong HT, Huong TT, Vinh LT, Khuyen HT, Thao DT, Huong NT, Lien PT, Minh LQ. Synthesis and characterization of NaYF4:Yb3+,Er3+@silica-N=folic acid nanocomplex for bioimaginable detecting MCF-7 breast cancer cells. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2019.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Dat LD, Tu NTM, Duc NV, Luyen BTT, Huyen CTT, Jang HJ, Thu DT, Huong TT, Tram LH, Thong NV, Hung ND, Kim YH, Thao NP. Anti-inflammatory secondary metabolites from the stems of Millettia dielsiana Harms ex Diels. Carbohydr Res 2019; 484:107778. [PMID: 31470215 DOI: 10.1016/j.carres.2019.107778] [Citation(s) in RCA: 4] [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: 05/03/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 12/18/2022]
Abstract
A phytochemical investigation for the constituents of the stems of Millettia dielsiana Harms ex Diels resulted in the isolation of a new isoflavone glycoside, mildiside A (1), and 14 known compounds (2-15). Their chemical structures were determined using a combination of IR, NMR, MS, and optical rotation analysis, as well as comparison with the literature data. The ethanolic (EtOH) extract and several isolated compounds exert the inflammatory effect of nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated murine RAW264.7 macrophage cells.
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Affiliation(s)
- Le Duc Dat
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | - Nguyen Thi Minh Tu
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Ngo Viet Duc
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | | | | | - Hyun Jae Jang
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeonbuk, 56212, Republic of Korea.
| | - Dang Thi Thu
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Le Huyen Tram
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Nguyen Van Thong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Nguyen Duc Hung
- Centre for Drug Research and Technology Transfer, Phutho College of Medicine and Pharmacy, Viettri City, Phutho Province, Viet Nam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
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21
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Vinh LB, Nguyet NTM, Thanh CD, Huong TT, Tram LH, Van Thong N, Minh NH, Thao NP, Hwang I, Yang SY, Kim YH. Chemical constituents of Vietnamese mangrove Hibiscus tiliaceus with antioxidant and alpha-glucosidase inhibitory activity. Nat Prod Res 2019; 35:2899-2904. [DOI: 10.1080/14786419.2019.1672065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Le Ba Vinh
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | | | - Chu Duc Thanh
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Tran Thu Huong
- School of Chemical Engineering (SCE), Hanoi University of Science & Technology (HUST), Hanoi, Vietnam
| | - Le Huyen Tram
- School of Chemical Engineering (SCE), Hanoi University of Science & Technology (HUST), Hanoi, Vietnam
| | - Nguyen Van Thong
- School of Chemical Engineering (SCE), Hanoi University of Science & Technology (HUST), Hanoi, Vietnam
| | - Nguyen Hoang Minh
- School of Chemical Engineering (SCE), Hanoi University of Science & Technology (HUST), Hanoi, Vietnam
| | - Nguyen Phuong Thao
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Inkyu Hwang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Seo Young Yang
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
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22
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Abstract
Sixteen sesquiterpenoids (1 - 16), including two new compounds namely saussucostusosides A and B (1 and 2), were isolated from the roots of Saussurea costus by various chromatographic separations. Their structures were elucidated by 1 D and 2 D NMR and HR-QTOF-MS experiments. Among isolated compounds, costunlide (6), 3β-[4-hydroxymethacryloyloxy]-8α-hydroxycostunolide (10) and 11β,13-dihydrozaluzanin C (16) exhibited potent inhibitory effects on LPS-induced NO production in RAW264.7 cells with IC50 values of 7.08 ± 0.34, 2.40 ± 0.06 and 5.55 ± 0.24 µM, respectively.
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Affiliation(s)
- Tran Thi Hong Hanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Pham Thi Cham
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Thuy My
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen The Cuong
- Institute of Ecology and Biological Resources, VAST, Hanoi, Vietnam
| | - Nguyen Hai Dang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Xuan Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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Thang PT, Dung NA, Giap TH, Oanh VTK, Hang NTM, Huong TT, Thanh LN, Huong DTM, Van Cuong P. Preliminary study on the chemical constituents of the leaves of Macaranga balansae
Gagnep. VJCH 2018. [DOI: 10.1002/vjch.201800061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pham Toan Thang
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
- School of Chemical Engineering; Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Trung, Hanoi Viet Nam
| | - Nguyen Anh Dung
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Tran Huu Giap
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Vu Thi Kim Oanh
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Nguyen Thi Minh Hang
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Tran Thu Huong
- School of Chemical Engineering; Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Trung, Hanoi Viet Nam
| | - Le Nguyen Thanh
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Doan Thi Mai Huong
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
| | - Pham Van Cuong
- Advanced Center for Bioorganic Chemistry; Institute of Marine Biochemistry, Vietnam Academy of Science and Technology; 18, Hoang Quoc Viet, Cau Giay, Hanoi Viet Nam
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Khanh PN, Huong TT, Spiga O, Trezza A, Son NT, Cuong TD, Ha VT, Cuong NM. In silico screening of anthraquinones from Prismatomeris memecyloides as novel phosphodiesterase type-5 inhibitors (PDE-5Is). Rev Int Androl 2018; 16:147-158. [PMID: 30286869 DOI: 10.1016/j.androl.2017.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/20/2017] [Revised: 05/05/2017] [Accepted: 07/24/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Prismatomeris memecyloides Craib (Rubiaceae) is a medicinal plant traditionally used by ethnic minorities in Vietnam for the treatment of erectile dysfunction (ED). The aim of this study was to investigate the chemical compositions and screen in silico its possible inhibitory effect against PDE-5 which reduced cyclic guanosine-3',5'-monophosphate (cGMP) levels and indirectly caused the male ED. METHODS Separation of natural compounds were carried out on chromatographic column with silica gel or reversed phase materials, eluting with different solvent gradients. The structures of all isolated compounds were elucidated on the basis of spectroscopic data (HR-MS, 1D/2D-NMR). Docking simulation study of compound (1-7) was performed by using flexible side chains protocol based on Iterated Local Search Global Optimizer Algorithm of AutoDock/Vina v.1.1.2. Pharmacokinetic parameters and toxicity prediction were also calculated by appropriate softwares. RESULTS From the methanol extract of roots of P. memecyloides collected in Vietnam, seven compounds including four anthraquinone/one anthraquinone glycoside namely damnacanthal (1), lucidin-ω-methyl ether (2), 3-methylalizarin (3), rubiadin-3-methyl ether (4), and 1-O-methylrubiadin 3-O-primeveroside (5) along with two iridoid glucosides, asperulosidic acid (6) and aitchisonide A (7) were isolated. The molecular modeling results showed that 5 anthraquinone compounds possess the lowest binding energies to PDE-5. The anthraquinone glucoside 1-O-methylrubiadin 3-O-primeveroside (5) potentially inhibited PDE-5 similarly to commercial PDE-5Is sildenafil (SLD) and tadalafil (TLD). Calculated pharmacokinetic results like pIC50,pred; miLogP, TPSA, enzyme inhibitory of anthraquinone glucoside (5) were similar and even higher to those of the commercial PDE-5 inhibitors. Especially the predictive toxicity of 1-O-methylrubiadin 3-O-primeveroside (5) was even lower than those of SLD and TLD. CONCLUSION This is the first study to find a scientific-based evidence for the ethnic use of P. memecyloides as medicinal plant for the treatment of ED. The result indicates that the anthraquinones (damnacanthal (1), lucidin-ω-methyl ether (2), 3-methylalizarin (3) and rubiadin-3-methyl ether (4)), especially anthraquinone glycoside (1-O-methylrubiadin 3-O-primeveroside (5)) are compounds of potential novel drug class for the ED treatment.
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Affiliation(s)
- Pham Ngoc Khanh
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Tran Thu Huong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Ottavia Spiga
- Department of Biotechnology, Chemistry and Pharmacology, University of Siena, Italy
| | - Alfonso Trezza
- Department of Biotechnology, Chemistry and Pharmacology, University of Siena, Italy
| | - Ninh The Son
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - To Dao Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Vu Thi Ha
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam
| | - Nguyen Manh Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
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Thang PT, Thoa HT, Giap TH, Thanh LN, Hang NTM, Oanh VTK, Huong TT, Huong DTM, Van Cuong P. Chemical constituents from the ethyl acetate extract of the stems of Macaranga balansae
Gagnep. VJCH 2018. [DOI: 10.1002/vjch.201800022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pham Toan Thang
- School of Chemical Engineering; Hanoi University of Science and Technology
| | - Ha Thi Thoa
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Huu Giap
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Le Nguyen Thanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
- Graduate University of Science & Technology, VAST
| | - Nguyen Thi Minh Hang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Vu Thi Kim Oanh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Thu Huong
- School of Chemical Engineering; Hanoi University of Science and Technology
| | - Doan Thi Mai Huong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
- Graduate University of Science & Technology, VAST
| | - Pham Van Cuong
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
- Graduate University of Science & Technology, VAST
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Huong TT, Tram LH, Minh TT, Thong NV, Giang DH, Dang NH, Dat NT. Investigation of anti-inflammatory lignans from the leaves of Symplocos sumuntia Buch-Ham ex D Don (Symplocaceae). TROP J PHARM RES 2017. [DOI: 10.4314/tjpr.v16i9.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Vien LT, Hanh TTH, Hong PT, Thanh NV, Huong TT, Cuong NX, Nam NH, Thung DC, Kiem PV, Minh CV. Polar steroid derivatives from the Vietnamese starfish Astropecten polyacanthus. Nat Prod Res 2017; 32:54-59. [PMID: 28511566 DOI: 10.1080/14786419.2017.1329733] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 10/19/2022]
Abstract
Five polar steroid derivatives, including one new glycosylated polyhydroxysteroid namely polyacanthoside A (1), were isolated from the water-soluble materials from the MeOH extract of the Vietnamese starfish Astropecten polyacanthus using various chromatographic separations. The structure elucidation was confirmed by spectroscopic experiments such as HR-ESI-MS, 1D and 2D NMR. Among the isolated compounds, (20R,24S)-3β,6α,8,15β,24-pentahydroxy-5α-cholestane (3) showed significant cytotoxic effect against five human cancer cell lines as HepG2, KB, LNCaP, MCF7 and SK-Mel2 with the IC50 values from 18.03 ± 2.63 to 21.59 ± 3.23 μM.
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Affiliation(s)
- Le Thi Vien
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
| | - Tran Thi Hong Hanh
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
| | - Pham Thi Hong
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam.,b School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam
| | - Nguyen Van Thanh
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
| | - Tran Thu Huong
- b School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam
| | - Nguyen Xuan Cuong
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam.,c Graduate University of Science and Technology, VAST , Hanoi , Vietnam
| | - Nguyen Hoai Nam
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
| | - Do Cong Thung
- d Institute of Marine Environment and Resources, VAST , Haiphong , Vietnam
| | - Phan Van Kiem
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
| | - Chau Van Minh
- a Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST) , Hanoi , Vietnam
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Nam NH, Tung PT, Ngoc NT, Hanh TTH, Thao NP, Thanh NV, Cuong NX, Thao DT, Huong TT, Thung DC, Kiem PV, Kim YH, Minh CV. Cytotoxic Biscembranoids from the Soft Coral Sarcophyton pauciplicatum. Chem Pharm Bull (Tokyo) 2016; 63:636-40. [PMID: 26235170 DOI: 10.1248/cpb.c15-00273] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ten biscembranoids (1-10), including the two new compounds sarcophytolides M and N (1 and 2), were isolated from the methanol extract of the Vietnamese soft coral Sarcophyton pauciplicatum. Their structures were elucidated by spectroscopic methods including one dimensional (1D)- and 2D-NMR, high-resolution electrospray ionization mass spectrometry (HR-ESI-MS), and circular dichroism (CD). The in vitro cytotoxic activity of all isolated compounds against a panel of eight human cancer cell lines including HepG2 (hepatoma cancer), HL-60 (acute leukemia), KB (epidermoid carcinoma), LNCaP (prostate cancer), LU-1 (lung cancer), MCF7 (breast cancer), SK-Mel2 (melanoma), and SW480 (colon adenocarcinoma) was evaluated using the sulforhodamine B colorimetric assay. Among the isolated biscembranoids, 1, 3, 4, 7, 9, and 10 exhibited significant cytotoxic effects and may be selected for further studies of their anticancer activity.
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Affiliation(s)
- Nguyen Hoai Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST)
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Khanh PN, Đuc HV, Huong TT, Ha VT, Van DT, Son NT, Kim YH, Viet DQ, Cuong NM. PHENOLIC COMPOUNDS FROM CALLISTEMON CITRINUS LEAVES AND STEMS. ACTA ACUST UNITED AC 2016. [DOI: 10.15625/0866-708x/54/2/6469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the search for bioactive constituents from Vietnamese plants, the leaves and stems of Callistemon citrinus (Curtis) Skeels were selected for chemical investigation. Phytochemical analysis of plant led to the isolation of eight phenolic compounds including two flavonoids (eucalyptine (1) and 8-demethyleucalyptine (2)), two alcohols (blumenol A (3), n-tetratriacontanol (4)), three benzoic acid derivatives (acid gallic (5), methyl gallate (6) protocatechuic acid (7)), one sterol (b-sitosterol (8)), and along with one sesquiterpene (2,6,10-bisabolatriene (9)). The structures of the natural compounds were determined by spectroscopic evidences including 1D- and 2D-NMR and ESI-MS.
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Khanh PN, Duc HV, Huong TT, Son NT, Ha VT, Van DT, Tai BH, Kim JE, Jo AR, Kim YH, Cuong NM. Alkylphloroglucinol derivatives and triterpenoids with soluble epoxide hydrolase inhibitory activity from Callistemon citrinus. Fitoterapia 2016; 109:39-44. [DOI: 10.1016/j.fitote.2015.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/29/2015] [Accepted: 10/30/2015] [Indexed: 12/19/2022]
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Cuong NM, Huong TT, Son NT, Cuong TD, Van DT, Khanh PN, Ha VT, Tram NCT, Long PQ, Kim YH. Morinlongosides A–C, Two New Naphthalene Glycoside and a New Iridoid Glycoside from the Roots of Morinda longissima. Chem Pharm Bull (Tokyo) 2016; 64:1230-4. [DOI: 10.1248/cpb.c15-01039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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)
- Nguyen Manh Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Thu Huong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Ninh The Son
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - To Dao Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Doan Thi Van
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Pham Ngoc Khanh
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Vu Thi Ha
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | | | - Pham Quoc Long
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University
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Saponara S, Durante M, Spiga O, Mugnai P, Sgaragli G, Huong TT, Khanh PN, Son NT, Cuong NM, Fusi F. Functional, electrophysiological and molecular docking analysis of the modulation of Cav 1.2 channels in rat vascular myocytes by murrayafoline A. Br J Pharmacol 2015; 173:292-304. [PMID: 26493241 DOI: 10.1111/bph.13369] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 10/01/2015] [Accepted: 10/10/2015] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND PURPOSE The carbazole alkaloid murrayafoline A (MuA) enhances contractility and the Ca(2+) currents carried by the Cav 1.2 channels [ICa1.2 ] of rat cardiomyocytes. As only few drugs stimulate ICa1.2 , this study was designed to analyse the effects of MuA on vascular Cav 1.2 channels. EXPERIMENTAL APPROACH Vascular activity was assessed on rat aorta rings mounted in organ baths. Cav 1.2 Ba(2+) current [IBa1.2 ] was recorded in single rat aorta and tail artery myocytes by the patch-clamp technique. Docking at a 3D model of the rat, α1c central pore subunit of the Cav 1.2 channel was simulated in silico. KEY RESULTS In rat aorta rings MuA, at concentrations ≤14.2 μM, increased 30 mM K(+) -induced tone and shifted the concentration-response curve to K(+) to the left. Conversely, at concentrations >14.2 μM, it relaxed high K(+) depolarized rings and antagonized Bay K 8644-induced contraction. In single myocytes, MuA stimulated IBa1.2 in a concentration-dependent, bell-shaped manner; stimulation was stable, incompletely reversible upon drug washout and accompanied by a leftward shift of the voltage-dependent activation curve. MuA docked at the α1C subunit central pore differently from nifedipine and Bay K 8644, although apparently interacting with the same amino acids of the pocket. Neither Bay K 8644-induced stimulation nor nifedipine-induced block of IBa1.2 was modified by MuA. CONCLUSIONS AND IMPLICATIONS Murrayafoline A is a naturally occurring vasoactive agent able to modulate Cav 1.2 channels and dock at the α1C subunit central pore in a manner that differed from that of dihydropyridines.
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Affiliation(s)
- S Saponara
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - M Durante
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - O Spiga
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Siena, Italy
| | - P Mugnai
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - G Sgaragli
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
| | - T T Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - P N Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - N T Son
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - N M Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - F Fusi
- Dipartimento di Scienze della Vita, Università degli Studi di Siena, Siena, Italy
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Cuong NM, Khanh PN, Duc HV, Huong TT, Tai BH, Binh NQ, Durante M, Fusi F. Vasorelaxing activity of two coumarins from Murraya paniculata leaves. Biol Pharm Bull 2015; 37:694-7. [PMID: 24694618 DOI: 10.1248/bpb.b13-00905] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the search for novel chemical scaffolds leading to potential antihypertensive agents, the methanol extract of Murraya paniculata leaves was assessed for its effects on isolated rat aorta rings. The vasorelaxing effect of the chloroform fraction of the methanol plant extract was the most potent for its vasorelaxing activity on rat aorta rings contracted by 60 mM K(+) (K60). Two coumarins were isolated from the chloroform fraction: the novel kimcuongin (1) and the known murracarpin (2). Their structures were determined from spectroscopic evidences including (1)H- and (13)C-NMR, correlation spectroscopy (COSY), nuclear Overhauser effect spectroscopy (NOESY), heteronuclear multiple bond correlation (HMBC), heteronuclear single quantum correlation (HSQC), and high resolution mass spectrometry (HR-MS). Kimcuongin and, to a lesser extent, murracarpin, showed vasorelaxing activity with IC50 values of 37.7 µM and 139.3 µM, respectively. The coumarins kimcuongin and murracarpin may thus represent a novel class of vasodilators of natural source.
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Affiliation(s)
- Nguyen Manh Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
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Binh NG, Hayakawa K, Co DX, Tuan ND, Anh NH, Thuy NTH, Phuong DM, Huong NTL, Thuy PTP, Chau NQ, Nhung PH, Gam DTH, Hai DT, Huong TT, Van Anh L, Takeshita N, Ohmagari N. The efficacy and nephrotoxicity associated with colistin use in an intensive care unit in Vietnam: Use of colistin in a population of lower body weight. Int J Infect Dis 2015; 35:18-23. [PMID: 25835100 DOI: 10.1016/j.ijid.2015.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 03/11/2015] [Revised: 03/21/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND There has been a growing need for colistin as a key drug for the treatment of MDR-GNB infection. Information on colistin use in Asian population is limited. METHODS A retrospective observational study was conducted to assess the efficacy and nephrotoxicity in critically ill adult patients who received intravenous colistin for MDR-GNB infection in the intensive care unit (ICU) at Bach Mai Hospital in Hanoi, Vietnam. Colistin was administered according to the dosing guideline that was based on pharmacokinetic, pharmacodynamic and toxicodynamic principles, adjusted by body weight and creatinine clearance. RESULTS Twenty-eight eligible patients were included. The mean patient age was 60±20.4 years. The mean body weight was 53±8.6kg. The mean daily dose of colistin was 4.1±1.6 MIU, and the mean cumulative dose of colistin was 48.2±22.8 MIU. Colistin therapies were classified as clinically effective in 19 (67.9%) cases. Six (21.4%) patients developed nephrotoxicity during the study period according to RIFLE criteria. CONCLUSION A personalized dosing protocol of colistin was effective, with low nephrotoxicity, among critically ill Vietnamese patients with low body weight. Further studies are warranted for assessing the efficacy and toxicity in a larger cohort.
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Affiliation(s)
| | - Kayoko Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan.
| | - Dao Xuan Co
- Intensive Care Unit of Bach Mai Hospital, Hanoi, Vietnam
| | | | | | | | - Doan Mai Phuong
- Microbiology Department of Bach Mai hospital, Hanoi, Vietnam
| | | | - Pham Thi Phuong Thuy
- National Center for Global Health and Medicine - Bach Mai hospital Medical Collaboration Center
| | - Ngo Qui Chau
- Respiratory Department, Bach Mai Hospital, Hanoi, Vietnam
| | - Pham Hong Nhung
- Microbiology Department of Bach Mai hospital, Hanoi, Vietnam
| | | | | | - Tran Thu Huong
- Pharmacy department of Bach Mai Hospital, Hanoi, Vietnam
| | - Le Van Anh
- Pharmacy department of Bach Mai Hospital, Hanoi, Vietnam
| | - Nozomi Takeshita
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
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Fusi F, Durante M, Sgaragli G, Khanh PN, Son NT, Huong TT, Huong VN, Cuong NM. In vitro vasoactivity of zerumbone from Zingiber zerumbet. Planta Med 2015; 81:298-304. [PMID: 25714723 DOI: 10.1055/s-0034-1396307] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The sesquiterpene zerumbone, isolated from the rhizome of Zingiber zerumbet Sm., besides its widespread use as a food flavouring and appetiser, is also recommended in traditional medicine for the treatment of several ailments. It has attracted great attention recently for its effective chemopreventive and therapeutic effects observed in various models of cancer. To assess the zerumbone safety profile, a pharmacology study designed to flag any potential adverse effect on vasculature was performed. Zerumbone was tested for vasorelaxing activity on rat aorta rings and for L-type Ba(2+) current blocking activity on single myocytes isolated from the rat-tail artery. The spasmolytic effect of zerumbone was more marked on rings stimulated with 60 mM than with 30 mM K(+) (IC50 values of 16 µM and 102 µM, respectively). In the presence of 60 mM K(+), zerumbone concentration-dependently inhibited the contraction induced by the cumulative additions of Ca(2+), this inhibition being inversely related to the Ca(2+) concentration. Phenylephrine-induced contraction was inhibited by the drug, though less efficiently and independently of the presence of an intact endothelium, without affecting Ca(2+) release from the intracellular stores. Zerumbone inhibited the L-type Ba(2+) current (estimated IC50 value of 458.7 µM) and accelerated the kinetics of current decay. In conclusion, zerumbone showed an overall weak in vitro vasodilating activity, partly attributable to the blocking of the L-type Ca(2+) channel, which does not seem to represent, however, a serious threat to its widespread use.
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Affiliation(s)
- Fabio Fusi
- Dipartimento di Scienze della Vita, Università di Siena, Siena, Italy
| | - Miriam Durante
- Dipartimento di Scienze della Vita, Università di Siena, Siena, Italy
| | | | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Van Ngoc Huong
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Cuong NM, Huong TT, Khanh PN, Tai NV, Ha VT, Son NT, Tai BH, Kim YH. Paratrimerins A and B, Two New Dimeric Monoterpene-Linked Coumarin Glycosides from the Roots and Stems of Paramignya trimera. Chem Pharm Bull (Tokyo) 2015; 63:945-9. [DOI: 10.1248/cpb.c15-00336] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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)
- Nguyen Manh Cuong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Tran Thu Huong
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Pham Ngoc Khanh
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Nguyen Van Tai
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Vu Thi Ha
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Ninh The Son
- Department of Bioactive Products, Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST)
| | - Bui Huu Tai
- College of Pharmacy, Chungnam National University
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University
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Lee JJ, Han JH, Jung SH, Lee SG, Kim IS, Cuong NM, Huong TT, Khanh PN, Kim YH, Yun YP, Ma JY, Myung CS. Antiplatelet action of indirubin-3'-monoxime through suppression of glycoprotein VI-mediated signal transduction: a possible role for ERK signaling in platelets. Vascul Pharmacol 2014; 63:182-92. [PMID: 25451564 DOI: 10.1016/j.vph.2014.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 01/07/2014] [Revised: 10/01/2014] [Accepted: 10/25/2014] [Indexed: 10/24/2022]
Abstract
We investigated the antiplatelet activity of indirubin-3'-monoxime (I3O) and the underlying mechanisms. In a rat carotid artery injury model, oral administration (20 mg/kg/day) of I3O for 3 days significantly prolonged occlusion time, and ADP- and collagen-induced platelet aggregation. In washed platelets in vitro, I3O potently inhibited collagen-induced platelet aggregation by suppressing phospholipase Cγ2 (PLCγ2) phosphorylation, subsequently blocking diacylglycerol and arachidonic acid (AA) formation, P-selectin secretion and the production of thromboxane B2. Platelet aggregation induced by phorbol-12-myristate 13-acetate, a protein kinase C (PKC) activator, was inhibited by I3O. Both I3O and U0126, an extracellular signal-regulated kinase 1/2 (ERK1/2) inhibitor, markedly reduced collagen-induced phosphorylation of ERK1/2 and p47, resulting in the blockade of cyclooxygenase (COX)-mediated AA metabolite production in AA-treated platelets. I3O suppressed phosphorylation of JNK, p38, GSK-3β, and AKT. I3O inhibited glycoprotein VI (GPVI), as a collagen receptor, by suppressing the phosphorylation of tyrosine kinase Syk of GPVI and the phosphorylation of PLCγ2 and ERK1/2 stimulated by convulxin, as a specific stimulator. Our results indicate that an antiplatelet effect of I3O is due to the suppression of GPVI-mediated signaling pathways. In collagen-stimulated platelets, ERK1/2 phosphorylation is adenylyl cyclase-dependent and leads to the modulation of PKC-p47 signaling and COX-1-mediated AA-metabolic pathways.
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Affiliation(s)
- Jung-Jin Lee
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea; Korean Medicine (KM)-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Joo-Hui Han
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea; Institute of Drug Research & Development, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Sang-Hyuk Jung
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea
| | - Sang-Gil Lee
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea
| | - In-Su Kim
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet St., Caugiay, Hanoi, Viet Nam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet St., Caugiay, Hanoi, Viet Nam
| | - Pham Ngoc Khanh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet St., Caugiay, Hanoi, Viet Nam
| | - Young Ho Kim
- Institute of Drug Research & Development, Chungnam National University, Daejeon 305-764, Republic of Korea; Department of Natural Product Chemistry, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea
| | - Yeo-Pyo Yun
- College of Pharmacy, Research Center for Bioresource and Health, Chungbuk National University, Cheongju 361-763, Republic of Korea
| | - Jin Yeul Ma
- Korean Medicine (KM)-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Chang-Seon Myung
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon 305-764, Republic of Korea; Institute of Drug Research & Development, Chungnam National University, Daejeon 305-764, Republic of Korea.
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Son MJ, Chidipi B, Kim JC, Huong TT, Tai BH, Kim YH, Ahn JR, Cuong NM, Woo SH. Alterations of contractions and L-type Ca2+ currents by murrayafoline-A in rat ventricular myocytes. Eur J Pharmacol 2014; 740:81-7. [DOI: 10.1016/j.ejphar.2014.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 07/02/2014] [Accepted: 07/02/2014] [Indexed: 11/13/2022]
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Abstract
The aim of this study is to elucidate the structure and investigate the hypolipidaemic activity of a fucoidan extracted from brown seaweed Sargassum henslowianum collected at Hai Van-Son Cha peninsula, Hue province, Vietnam by using tandem electrospray ionisation mass spectrometry. The results demonstrated that the fucoidan has α(1 → 3)-linked L-fucopyranose backbone and sulphate groups occupied mostly at C-2, C-4 and sometimes at C-3 position of fucose residues. The results of in vivo bioactivity examination revealed that the fucoidan in the dose of 100 mg/kgP/day by oral administration helped decrease cholesterol, triglyceride and LDL-cholesterol levels on obese mice.
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Affiliation(s)
- Ho Duc Cuong
- a School of Chemical Engineering, Hanoi University of Science and Technology , Ha Noi , Viet Nam
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Cuong NM, Khanh PN, Huyen PT, Duc HV, Huong TT, Ha VT, Durante M, Sgaragli G, Fusi F. Vascular L-type Ca²⁺ channel blocking activity of sulfur-containing indole alkaloids from Glycosmis petelotii. J Nat Prod 2014; 77:1586-1593. [PMID: 24949913 DOI: 10.1021/np500076v] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the search for novel natural compounds endowed with potential antihypertensive activity, a new sulfur-containing indole alkaloid, N-demethylglypetelotine (2), and its known analogue glypetelotine (1), were isolated from the leaves of Glycosmis petelotii. Their structures were established on the basis of spectroscopic evidence. The two alkaloids were assessed for vasorelaxing activity on rat aorta rings and for L-type Ba(2+) current [I(Ba(L))] blocking activity on single myocytes isolated from rat tail artery. Both glypetelotine and N-demethylglypetelotine inhibited phenylephrine-induced contraction with IC50 values of 20 and 50 μM, respectively. The presence of endothelium did not modify their spasmolytic effect. Neither glypetelotine nor N-demethylglypetelotine affected Ca(2+) release from the sarcoplasmic reticulum induced by phenylephrine. The spasmolytic effect of glypetelotine increased with membrane depolarization. In the presence of 60 mM K(+), both compounds inhibited, in a concentration-dependent manner, the contraction induced by cumulative addition of Ca(2+), this inhibition being inversely related to Ca(2+) concentration. Glypetelotine and, less efficiently N-demethylglypetelotine, inhibited I(Ba(L)), the former compound also affecting I(Ba(L)) kinetics. In conclusion, glypetelotine is a novel vasorelaxing agent which antagonizes L-type Ca(2+) channels.
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Affiliation(s)
- Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology , 18 Hoang Quoc Viet Street, 122100 Cau Giay, Hanoi Vietnam
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Tung MHT, Duc HV, Huong TT, Duong NT, Phuong DT, Thao DT, Tai BH, Kim YH, Bach TT, Cuong NM. Cytotoxic Compounds from Brucea mollis. Sci Pharm 2012; 81:819-31. [PMID: 24106661 PMCID: PMC3791942 DOI: 10.3797/scipharm.1206-02] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 06/03/2012] [Accepted: 12/31/2012] [Indexed: 11/29/2022] Open
Abstract
Ten compounds, including soulameanone (1), isobruceine B (2), 9-methoxy-canthin-6-one (3), bruceolline F (4), niloticine (5), octatriacontan-1-ol (6), bombiprenone (7), α-tocopherol (8), inosine (9), and apigenin 7-O-β-D-glucopyranoside (10), were isolated from the leaves, stems, and roots of Brucea mollis Wall. ex Kurz. Their structures were determined using one-and two-dimensional NMR spectroscopy and mass spectrometry. All compounds were evaluated for their cytotoxic activity against KB (human carcinoma of the mouth), LU-1 (human lung adenocarcinoma), LNCaP (human prostate adeno-carcinoma), and HL-60 (human promyelocytic leukemia) cancer cell lines. Compound 2 showed significant cytotoxic activity against KB, LU-1, LNCaP, and HL-60 cancer cells with IC50 values of 0.39, 0.40, 0.34, and 0.23 μg/mL, respectively. In addition, compounds 3 and 5 showed significant cytotoxic activity against KB, LU-1, LNCaP, and HL-60 cancer cells with IC50 values around 1–4 μg/mL. Compounds 9-methoxycanthin-6-one (3) and niloticine (5) have been discovered for the first time from the Brucea genus.
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Affiliation(s)
- Mai Hung Thanh Tung
- Institute of Natural Products Chemistry, VAST, 18 Hoang Quoc Viet street, Cau Giay, Hanoi, Vietnam
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Huong TT, Cuong NX, Tram LH, Quang TT, Duong LV, Nam NH, Dat NT, Huong PTT, Diep CN, Kiem PV, Minh CV. A new prenylated aurone from Artocarpus altilis. J Asian Nat Prod Res 2012; 14:923-928. [PMID: 22924601 DOI: 10.1080/10286020.2012.702758] [Citation(s) in RCA: 11] [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: 06/01/2023]
Abstract
Phytochemical study of the methanol extract of Artocarpus altilis resulted in the isolation of a new prenylated aurone, artocarpaurone (1), together with eight known compounds including two prenylated chalcones (2 and 3), three prenylated flavanones (4-6), and three triterpenes (7-9). The structure of 1 was elucidated as 6-hydroxy-2-[8-hydroxy-2-methyl-2-(4-methyl-3-pentenyl)-2H-1-benzopyran-5-ylmethylene]-3(2H)-benzofuranone by spectroscopic methods including 1D and 2D NMR spectra and FT-ICR-MS. Compound 1 showed moderate nitric oxide radical scavenging activity, whereas 2 and 3 had moderate 2,2-diphenyl-1-picrylhydrazyl radical scavenging effect, compared with the positive control (+)-catechin.
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Affiliation(s)
- Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology (HUST), Hanoi, Vietnam
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Huong TT, Anh TK, Vinh LT, Strek W, Khuyen HT, Minh LQ. Fabrication and properties of high efficiency luminescent nanorods EuPO4·H2O by soft template method. J RARE EARTH 2011. [DOI: 10.1016/s1002-0721(10)60620-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Loc DX, Chi TTK, Thu Huong T, Vu N, Anh TK, Strek W, Minh LQ. Synthesis and characterization of core/shell structured nanophosphors CePO4:Tb@LaPO4 by solvothermal method. J RARE EARTH 2011. [DOI: 10.1016/s1002-0721(10)60614-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tai BH, Nhut ND, Nhiem NX, Tung NH, Quang TH, Luyen BTT, Huong TT, Wilson J, Beutler JA, Cuong NM, Kim YH. An evaluation of the RNase H inhibitory effects of Vietnamese medicinal plant extracts and natural compounds. Pharm Biol 2011; 49:1046-1051. [PMID: 21595586 PMCID: PMC3724220 DOI: 10.3109/13880209.2011.563316] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
CONTEXT Acquired immune deficiency syndrome (AIDS) is a severe pandemic disease especially prevalent in poor and developing countries. Thus, developing specific, potent antiviral drugs that restrain infection by human immunodeficiency virus type 1 (HIV-1), a major cause of AIDS, remains an urgent priority. OBJECTIVE This study evaluated 32 extracts and 23 compounds from Vietnamese medicinal plants for their inhibitory effects against HIV-1 ribonuclease H (RNase H) and their role in reversing the cytopathic effects of HIV. MATERIALS AND METHODS The plants were air-dried and extracted in different solvent systems to produce plant extracts. Natural compounds were obtained as previously published. Samples were screened for RNase H inhibition followed by a cytopathic assay. Data were analyzed using the Microsoft Excel. RESULTS AND DISCUSSION At 50 μg/mL, 11 plant extracts and five compounds inhibited over 90% of RNase H enzymatic activity. Methanol extracts from Phyllanthus reticulatus and Aglaia aphanamixis leaves inhibited RNase H activity by 99 and 98%, respectively, whereas four extracts showed modest protection against the cytopathic effects of HIV. CONCLUSION The screening results demonstrated that the butanol (BuOH) extract of Celastrus orbiculata leaves, methanol (MeOH) extracts of Glycosmis stenocarpa stems, Eurya ciliata leaves, and especially P. reticulatus leaves showed potential RNase H inhibition and protection against the viral cytopathic effects of HIV-1. Further chemical investigations should be carried out to find the active components of these extracts and compounds as potential anti-HIV drug candidates.
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Affiliation(s)
- Bui Huu Tai
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Caugiay, Hanoi, Vietnam
| | - Nguyen Duy Nhut
- Nhatrang Institute of Technology Research and Application, 2 Hungvuong str., Nhatrang, Vietnam
| | - Nguyen Xuan Nhiem
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
| | - Nguyen Huu Tung
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
| | - Tran Hong Quang
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
| | - Bui Thi Thuy Luyen
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Caugiay, Hanoi, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Caugiay, Hanoi, Vietnam
| | - Jennifer Wilson
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
| | - John A. Beutler
- Molecular Targets Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702 USA
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Caugiay, Hanoi, Vietnam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
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Cuong NM, Tai BH, Hoan DH, Huong TT, Kim YH, Hyun JH, Kang HK. Inhibitory effects of indirubin derivatives on the growth of HL-60 leukemia cells. Nat Prod Commun 2010; 5:103-106. [PMID: 20184032] [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: 05/28/2023] Open
Abstract
Six indirubin derivatives have been synthesized and their inhibitory effects on the growth of HL-60 human promyelocytic leukemia cells investigated. Cell viability was determined using the trypan blue exclusion method. Indirubin-3'-oxime (I-1) inhibited the growth of HL-60 cells with a GI50 value of 36.6 microM, whereas I-0, I-2, I-3, I-4 and I-6 showed only weak cytotoxic activities against HL-60 cancer cells with GI50 values in the range of 97.3 to over 100 microM. These results indicate that indirubin derivatives might be useful candidate agents for exploring potential antileukemic drugs.
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Affiliation(s)
- Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd, Caugiay, Hanoi, Vietnam.
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Tai BH, Huyen VT, Huong TT, Nhiem NX, Choi EM, Kim JA, Long PQ, Cuong NM, Kim YH. New Pyrano-Pyrone from Goniothalamus tamirensis Enhances the Proliferation and Differentiation of Osteoblastic MC3T3-E1 Cells. Chem Pharm Bull (Tokyo) 2010; 58:521-5. [DOI: 10.1248/cpb.58.521] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [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)
- Bui Huu Tai
- College of Pharmacy, Chungnam National University, Korea
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology
| | - Vu Thi Huyen
- Faculty of Chemistry, Hanoi University of Science
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology
| | | | - Eun-Mi Choi
- College of Pharmacy, Chungnam National University, Korea
| | - Jeong Ah Kim
- College of Pharmacy, Chungnam National University, Korea
| | - Pham Quoc Long
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology
| | - Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Korea
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Cuong NM, Tai BH, Hoan DH, Huong TT, Kim YH, Hyun JH, Kang HK. Inhibitory Effects of Indirubin Derivatives on the Growth of HL-60 Leukemia Cells. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000500125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Six indirubin derivatives have been synthesized and their inhibitory effects on the growth of HL-60 human promyelocytic leukemia cells investigated. Cell viability was determined using the trypan blue exclusion method. Indirubin-3′-oxime (I-1) inhibited the growth of HL-60 cells with a GI50 value of 36.6 μM, whereas I-0, I-2, I-3, I-4 and I-6 showed only weak cytotoxic activities against HL-60 cancer cells with GI50 values in the range of 97.3 to over 100 μM. These results indicate that indirubin derivatives might be useful candidate agents for exploring potential antileukemic drugs.
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Affiliation(s)
- Nguyen Manh Cuong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd., Caugiay, Hanoi, Vietnam
| | - Bui Huu Tai
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd., Caugiay, Hanoi, Vietnam
| | - Dang Hoang Hoan
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd., Caugiay, Hanoi, Vietnam
| | - Tran Thu Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd., Caugiay, Hanoi, Vietnam
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea
| | - Jae-Hee Hyun
- School of Medicine, Institute of Medical Sciences, Jeju National University, 66 Jejudaehakno, Jeju 690-756, South Korea
| | - Hee-Kyoung Kang
- School of Medicine, Institute of Medical Sciences, Jeju National University, 66 Jejudaehakno, Jeju 690-756, South Korea
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Huong TT, Anh TK, Minh LQ. Fabrication and properties of highly luminescent materials from Tb(OH)3@SiO2and Tb(OH)3@SiO2:Eu3+nanotubes. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/187/1/012064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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