1.Anti-osteoporotic and Antioxidant Activities by Rhizomes of Kaempferia parviflora Wall. ex Baker.
Nguyen Phuong THAO ; Bui Thi Thuy LUYEN ; Sang Hyun LEE ; Hae Dong JANG ; Young Ho KIM
Natural Product Sciences 2016;22(1):13-19
In this report, we investigated the antioxidant (peroxyl radical-scavenging and reducing capacities) and anti-osteoporotic activities of extracts and isolated constituents (1 - 16) from the rhizomes of Kaempferia parviflora Wall. ex Baker on pre-osteoclastic RAW 264.7 cells. Compound 5 exhibited significant peroxyl radical-scavenging capacity, with TE value of 8.47 ± 0.52 µM, while compound 13 showed significant reducing capacity, with CUPRAC value of 5.66 ± 0.26 µM, at 10.0 µM. In addition, flavonoid compounds 2, 4, 6, 8, 10, 12, and terpene compound 15 showed significant inhibition of tartrate-resistant acid phosphatase (TRAP) in NF-κB ligand-induced osteoclastic RAW 264.7 cells, with values ranging from 16.97 ± 1.02 to 64.67 ± 2.76%. These results indicated that K. parviflora could be excellent sources for the antioxidant and anti-osteoporotic traditional medicinal plants.
Acid Phosphatase
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Osteoclasts
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Plants, Medicinal
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Rhizome*
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Zingiberaceae*
2.Soluble Epoxide Hydrolase Inhibitory Activity from Euphorbia supina Rafin.
Bui Thi Thuy LUYEN ; Nguyen Phuong THAO ; Bui Huu TAI ; Le Duc DAT ; Ji Eun KIM ; Seo Young YANG ; Se Uk KWON ; Young Mi LEE ; Young Ho KIM
Natural Product Sciences 2015;21(3):176-184
In our search for natural soluble epoxide hydrolase (sEH) inhibitors from plants, an extract of the dried whole plants of Euphorbia supina Rafin was found to significantly inhibit sEH activity in vitro. Phytochemical investigation of E. supina resulted in isolation of 17 compounds (1 - 17), including triterpenes (1 - 4), phenolic compounds (5 - 8), and flavonoid derivatives (9 - 17). The structures of the isolated compounds were established mainly by extensive analysis of the 1D and 2D NMR, and MS data. All of the isolated compounds were evaluated for their sEH inhibitory activity. Among the isolated phenolic compounds, 8 was identified as a significant inhibitor of sEH, with an IC50 value of 15.4 +/- 1.3 microM. Additionally, a kinetic analysis of isolated compounds (2, 5, 8 - 11, 13, and 17) indicated that the inhibitory effects of flavonoid derivatives 10 and 11 were of mixed-type, with inhibitory constants (Ki) ranging from 3.6 +/- 0.8 to 21.8 +/- 1.0 microM, whereas compounds 2, 5, 8, 9, 13, and 17 were non-competitive inhibitors with inhibition Ki values ranging from 3.3 +/- 0.2 to 39.5 +/- 0.0 microM.
Euphorbia*
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Euphorbiaceae
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Inhibitory Concentration 50
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Phenol
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Triterpenes
3.Explore patients’s expectations towards primary care and related factors at Family Medicine Clinic, Hue University of Medicine and Pharmacy
Thi Hoa NGUYEN ; Thi Cuc NGUYEN ; Thi Phuong Thuy HO ; Thi Xuan Thuy HO ; Thi Truc Ly TRAN ; Duc Toan VO ; Minh Tam NGUYEN
Hue Journal of Medicine and Pharmacy 2023;13(7):83-92
Background: One of the most important elements for improving the primary care quality is to meet the growing needs of patients and to increase patient satisfaction. In-depth studies on patients’ expectation is vital for healthcare facilities to achieve a more reliable and valid healthcare outcome. This study aims: to explore people’s expectations towards primary care services and related factors at Family Medicine Clinic, Hue University of Medicine and Pharmacy. Methods: A mixed method study on 308 patients visiting the Family Physician Clinic, Hue University of Medicine and Pharmacy. Results: The most important aspects were: “Doctor provides correct diagnoses and cure it.”, “Doctor provides careful examination”, “Doctor takes full history taking”, “Doctor clearly explains diagnosis and treatment plan”, “List of medication covered by health insurance is enough and qualified”, “Doctor/healthcare worker ensures patient confidentiality” and “Healthcare workers are friendly”. There were differences in the expectations of prioritizing primary care services in different target groups. Younger patients groups placed more expectations on facility factors than older patient groups; Patients in different occupational groups differed in their expectations of healthcare workers and the quality of medical care.Conclusion: Factors related to health care workers and quality of medical care were the most prioritizing expectations at the Family Medicine Clinic. It is necessarry to improve primary care services to meet the expectations of different target groups.
4.Anti-inflammatory Triterpenes and Glyceryl Glycosides from Kandelia candel (L.) Druce.
Le Duc DAT ; Nguyen Phuong THAO ; Bui Huu TAI ; Bui Thi Thuy LUYEN ; Seo Young YANG ; Sohyun KIM ; Jung Eun KOO ; Young Sang KOH ; Nguyen The CUONG ; Nguyen Hoai NAM ; Nguyen Van THANH ; Phan Van KIEM ; Chau Van MINH ; Young Ho KIM
Natural Product Sciences 2015;21(3):150-154
Phytochemical investigation of Kandelia candel resulted in the isolation of six triterpenes (1 - 5) and two glyceryl glycosides (6 and 7) and their structures were determined by comparing the spectroscopic data with those of reported values. In present study, we described the inhibitory effects of fractions and isolated compounds from K. candel on pro-inflammatory cytokines (IL-12 p40, IL-6, and TNF-alpha) production in lipopolysaccharide (LPS) stimulated bone marrow-derived dendritic cells (BMDCs). Results indicated that compounds 3, 6, and 7 showed potent inhibition on IL-6 production (IC50 values at less than 0.5 microM, respectively). Meanwhile, compounds 6 and 7 exhibited strong inhibitory effects on the production of TNF-alpha (IC50 values of 1.7 +/- 0.1 and 5.5 +/- 0.2 microM). Compounds 1 and 3 were also showed the inhibitory effects on IL-12 p40 production (IC50 values of 8.9 +/- 0.4 and 3.3 +/- 0.1 microM, respectively).
Cytokines
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Dendritic Cells
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Glycosides*
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Interleukin-12
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Interleukin-6
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Rhizophoraceae*
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Triterpenes*
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Tumor Necrosis Factor-alpha
5.Chemicals from Cimicifuga dahurica and Their Inhibitory Effects on Pro-inflammatory Cytokine Production by LPS-stimulated Bone Marrow-derived Dendritic Cells
Nguyen Phuong THAO ; Young Suk LEE ; Bui Thi Thuy LUYEN ; Ha Van OANH ; Irshad ALI ; Madeeha AROOJ ; Young Sang KOH ; Seo Young YANG ; Young Ho KIM
Natural Product Sciences 2018;24(3):194-198
Inflammation is a biological response caused by overactivation of the immune system and is controlled by immune cells via a variety of cytokines. The overproduction of pro-inflammatory cytokines enhances abnormal host immunity, resulting in diseases such as rheumatoid arthritis, cardiovascular disease, Alzheimer's disease, and cancer. Inhibiting the production of pro-inflammatory cytokines such as interleukin (IL)-12p40, IL-6, and tumor necrosis factor (TNF)-α might be one way to treat these conditions. Here, we investigated the anti-inflammatory activity of compounds isolated from Cimicifuga dahurica (Turcz.) Maxim., which is traditionally used as an antipyretic and analgesic in Korea. In primary cell culture assays, 12 compounds were found to inhibit the production of pro-inflammatory cytokines (IL-12p40, IL-6, and TNF-α) in vitro in bone marrow-derived dendritic cells stimulated with LPS.
Alzheimer Disease
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Arthritis, Rheumatoid
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Cardiovascular Diseases
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Cimicifuga
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Cytokines
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Dendritic Cells
;
Immune System
;
In Vitro Techniques
;
Inflammation
;
Interleukin-6
;
Interleukins
;
Korea
;
Primary Cell Culture
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Ranunculaceae
;
Tumor Necrosis Factor-alpha