1.Study on the proportion of patients with uncontrolled hypertension among outpatients and related factors at the Internal Medicine Clinic, Hue university of medicine and Pharmacy Hospital
Vu Thao Vy NGUYEN ; Thi Bich Thuy LE ; Pham Phuoc Long DOAN ; Thi Thanh Nhan TRAN ; Phuoc Thuoc DOAN
Hue Journal of Medicine and Pharmacy 2023;13(7):190-197
Background: Hypertension is one of the dangerous chronic diseases. In the treatment of hypertension, controlling blood pressure to achieve treatment target is paramount to prevent dangerous complications and death. The study was conducted to identify the percentage of hypertensive patients who do not achieve treatment target among outpatients at the internal medicine clinic, Hue University of Medicine and Pharmacy Hospital, and explore some related factors. Methods: A cross-sectional study was conducted among 403 hypertensive patients treated as outpatients at the internal medicine clinic. A multivariate logistic regression model was used to identify the related factors. Results: 46.4% of hypertensive patients did not reach the treatment target. Factors related to uncontrolled hypertension were male, non-religion, comorbidities, no reduction in salt intake, the use of coffee/tea, and non-compliance with medication (p < 0.05). Conclusions: The rate of patients with uncontrolled hypertension was still high. The health sector should consider establishing an outpatient management team; strengthening communication activities and advice on diet and drug use in parallel with medical examination and treatment.
2.Improved Therapeutic Effect against Leukemia by a Combination of the Histone Methyltransferase Inhibitor Chaetocin and the Histone Deacetylase Inhibitor Trichostatin A.
Huong Thi Thanh TRAN ; Hee Nam KIM ; Il Kwon LEE ; Thanh Nhan NGUYEN-PHAM ; Jae Sook AHN ; Yeo Kyeoung KIM ; Je Jung LEE ; Kyeong Soo PARK ; Hoon KOOK ; Hyeoung Joon KIM
Journal of Korean Medical Science 2013;28(2):237-246
SUV39H1 is a histone 3 lysine 9 (H3K9)-specific methyltransferase that is important for heterochromatin formation and the regulation of gene expression. Chaetocin specifically inhibits SUV39H1, resulted in H3K9 methylation reduction as well as reactivation of silenced genes in cancer cells. Histone deacetylase (HDAC) inhibitors inhibit deacetylases and accumulate high levels of acetylation lead to cell cycle arrest and apoptosis. In this study, we demonstrated that treatment with chaetocin enhanced apoptosis in human leukemia HL60, KG1, Kasumi, K562, and THP1 cells. In addition, chaetocin induced the expression of cyclin-dependent kinase inhibitor 2B (p15), E-cadherin (CDH1) and frizzled family receptor 9 (FZD9) through depletion of SUV39H1 and reduced H3K9 methylation in their promoters. Co-treatment with chaetocin and HDAC inhibitor trichostatin A (TSA) dramatically increased apoptosis and produced greater activation of genes. Furthermore, this combined treatment significantly increased loss of SUV39H1 and reduced histone H3K9 trimethylation responses accompanied by increased acetylation. Importantly, co-treatment with chaetocin and TSA produced potent antileukemic effects in leukemia cells derived from patients. These in vitro findings suggest that combination therapy with SUV39H1 and HDAC inhibitors may be of potential value in the treatment of leukemia.
Acetylation/drug effects
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Adolescent
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Adult
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Aged
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Apoptosis/*drug effects
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Cadherins/metabolism
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Cell Line, Tumor
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Cyclin-Dependent Kinase Inhibitor p15/metabolism
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DNA Methylation/drug effects
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Enzyme Inhibitors/therapeutic use/*toxicity
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Frizzled Receptors/metabolism
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Gene Expression Regulation/drug effects
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HL-60 Cells
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Histone Deacetylase Inhibitors/therapeutic use/*toxicity
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Histone-Lysine N-Methyltransferase/*antagonists & inhibitors/metabolism
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Histones/genetics/metabolism
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Humans
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Hydroxamic Acids/therapeutic use/*toxicity
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K562 Cells
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Leukemia/drug therapy/metabolism/pathology
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Leukemia, Myeloid, Acute/genetics/metabolism/pathology
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Male
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Middle Aged
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Piperazines/therapeutic use/toxicity
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Promoter Regions, Genetic
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Young Adult
3.Enhancement of antitumor effect using dendritic cells activated with natural killer cells in the presence of Toll-like receptor agonist.
Thanh Nhan Nguyen PHAM ; Cheol Yi HONG ; Jung Joon MIN ; Joon Haeng RHEE ; Truc Anh Thi NGUYEN ; Byoung Chul PARK ; Deok Hwan YANG ; Young Kyu PARK ; Hyeong Rok KIM ; Ik Joo CHUNG ; Hyeoung Joon KIM ; Je Jung LEE
Experimental & Molecular Medicine 2010;42(6):407-419
Dendritic cells (DCs) play a role in natural killer (NK) cell activation, while NK cells are also able to activate and mature DCs. Toll-like receptors (TLRs) on the surface of DCs and NK cells induce the maturation and activation of these cells when engaged with their cognate ligand. We investigated to generate potent DCs by maturation with NK cells in the presence of TLR agonist in vitro and tested the efficacy of these DC vaccinations in mouse colon cancer model. The optimal ratios of DCs versus NK cells were 1:1 to 1:2. Immature DCs were mature with NK cells in the presence of lipopolysaccharide, which is TLR4 agonist, and further addition of IL-2 induced phenotypically and functionally mature bone marrow-derived DCs. These potent DCs exhibited not only high expression of several costimulatory molecules and high production of IL-12p40 and IL-12p70, but also high allogeneic T cells stimulatory capacity, and the induction of the high activities to generate tumor-specific CTLs. Consistently, vaccination with these DCs efficiently inhibited CT-26 tumor growth in mouse colon cancer model when compared to other vaccination strategies. Interestingly, combination therapy of these DC-based vaccines and with low-dose cyclophosphamide showed dramatic inhibition effects of tumor growth. These results suggest that the DCs maturated with NK cells in the presence of TLR agonist are potent inducer of antitumor immune responses in mouse model and may provide a new source of DC-based vaccines for the development of immunotherapy against colon cancer.
Animals
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Cancer Vaccines/immunology/metabolism
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Carcinoma/immunology/pathology/*therapy
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Cell Line, Tumor
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Cells, Cultured
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Colonic Neoplasms/immunology/pathology/*therapy
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Dendritic Cells/*drug effects/*immunology/transplantation
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Female
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Immunotherapy, Adoptive/*methods
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Killer Cells, Natural/*immunology/physiology
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Lipopolysaccharides/pharmacology
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Mice
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Mice, Inbred BALB C
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Toll-Like Receptor 4/agonists
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Toll-Like Receptors/*agonists
4.Alpha-Type 1 Polarized Dendritic Cells Loaded with Apoptotic Allogeneic Breast Cancer Cells Can Induce Potent Cytotoxic T Lymphocytes against Breast Cancer.
Min Ho PARK ; Deok Hwan YANG ; Mi Hyun KIM ; Jae Hong JANG ; Yoon Young JANG ; Youn Kyung LEE ; Chun Ji JIN ; Than Nhan Nguyen PHAM ; Truc Anh Nguyen THI ; Mi Seon LIM ; Hyun Ju LEE ; Cheol Yi HONG ; Jung Han YOON ; Je Jung LEE
Cancer Research and Treatment 2011;43(1):56-66
PURPOSE: Various tumor antigens can be loaded onto dendritic cells (DCs) to induce a potent cytotoxic T lymphocyte (CTL) response in DC-based immunotherapy against breast cancer. However, in the clinical setting, obtaining a sufficient number of autologous tumor cells as a source of tumor antigens is a laborious process. We therefore investigated the feasibility of immunotherapy using breast-cancer-specific CTLs generated in vitro by use of alpha-type 1 polarized DCs (alpha DC1s) loaded with ultraviolet B-irradiated cells of the breast cancer cell line MCF-7. MATERIALS AND METHODS: alphaDC1s were induced by loading allogeneic tumor antigen generated from the MCF-7 UVB-irradiated breast cancer cell line. Antigen-pulsed alphaDC1s were evaluated by morphological and functional assays, and the breast-cancer-specific CTL response was analyzed by cytotoxic assay. RESULTS: The alphaDC1s significantly increased the expression of several molecules related to DC maturation without differences according to whether the alphaDC1s were loaded with tumor antigens. The alphaDC1s showed a high production of interleukin-12 both during maturation and after subsequent stimulation with CD40L, which was not significantly affected by loading with tumor antigens. Breast-cancer-specific CTLs against autologous breast cancer cells were successfully induced by alphaDC1s loaded with apoptotic MCF-7 cells. CONCLUSION: Autologous DCs loaded with an allogeneic breast cancer cell line can generate potent breast-cancer-specific CTL responses. This may be a practical method for cellular immunotherapy in patients with breast cancer.
Antigens, Neoplasm
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Breast
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Breast Neoplasms
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CD40 Ligand
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Cell Line
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Dendritic Cells
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Humans
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Immunotherapy
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Interleukin-12
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Lymphocytes
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T-Lymphocytes, Cytotoxic
5.Pollen/Fruit Syndrome: Clinical Relevance of the Cypress Pollen Allergenic Gibberellin-Regulated Protein.
Hélène SÉNÉCHAL ; Sanaz KEYKHOSRAVI ; Rémy COUDERC ; Marie Ange SELVA ; Youcef SHAHALI ; Tomoyasu AIZAWA ; Jean Marc BUSNEL ; Rihane ARIF ; Inna MERCIER ; Nhan PHAM-THI ; Denis André CHARPIN ; Pascal PONCET
Allergy, Asthma & Immunology Research 2019;11(1):143-151
A pollen/food-associated syndrome (PFAS) has been described between peach and cypress pollen. Cross-reactive allergens were characterized which belong to the Gibberellin-regulated protein (GRP) family, BP14 in cypress pollen and Pru p 7 in peach. GRP are small cationic protein with anti-microbial properties. A patient suffering from a peach/cypress syndrome was explored clinically and biologically using 2 types of immunoglobulin E (IgE) multiarray microchip, immunoblots and a basophil activation test to assess the clinical relevance of various extracts and purified allergens from fruits or cypress pollen. In addition to PR10 sensitization, the patient showed specific IgE to Pru p 7, BP14 and allergen from pomegranate. These last 3 allergens and allergenic sources are able to induce ex vivo basophil activation characterized by the monitoring of the expression of CD63 and CD203c, both cell surface markers correlated with a basophil mediator release. Up to 100% of cells expressed CD203c at 50 ng/mL of BP14 protein. In contrast, snakin-1, a GRP from potato sharing 82% sequence identity with Pru p 7 did not activate patient's basophils. These results strongly suggest that, like Pru p 7, BP14 is a clinically relevant allergenic GRP from pollen. Allergen members of this newly described protein family are good candidates for PFAS where no cross-reactive allergens have been characterized.
Allergens
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Basophils
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Cupressus*
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Fruit
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Humans
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Immunoglobulin E
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Immunoglobulins
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Pollen*
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Prunus persica
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Punicaceae
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Solanum tuberosum
6.Comparing multiplex and multiplex real-time polymerase chain reaction with traditional blood culture in bacterial detection among patients with septicemia
Loan Thi Nguyen ; Linh Trong Nguyen ; Trang Thu Nguyen ; Hien Minh Nguyen ; Thuy Thi Pham ; Huyen Thi La
Malaysian Journal of Microbiology 2022;18(3):242-250
Aims:
This study was aimed to test the specificity of primers and probes with target genes by using multiplex PCR and multiplex real-time PCR methods. These methods were compared with traditional blood culture methods in detecting five bacteria causing sepsis, including Acinetorbacter baumannii, Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus.
Methodology and results:
A total of 587 blood samples from patients diagnosed with sepsis and septic shock were collected at Thanh Nhan Hospital, Hanoi, Vietnam. Each sample was divided into three parts for bacterial culture, multiplex PCR and multiplex real-time PCR to detect the similarity of the two PCR methods with the bacterial culture method. Conditions in multiplex PCR and multiplex real-time PCR were optimized to ensure the successful amplification of target genes. Results showed that the primers and probes were tested completely specific to the target genes and using multiplex PCR and multiplex real-time PCR techniques could detect five pathogens causing sepsis, including A. baumannii, K. pneumoniae, P. aeruginosa, E. coli and S. aureus.
Conclusion, significance and impact of study
Both multiplex PCR and multiplex real-time PCR methods have high similarities with the culture method, showing potential in the application of bacteria detection in sepsis.
Multiplex Polymerase Chain Reaction
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Sepsis--microbiology