1.Real situation of blood glucose control in type 2 diabetic patients admitted to Department of Endocrinology, Bach Mai Hospital
Sang Minh Nguyen ; Van Khoa Dieu Nguyen ; Bay Quang Nguyen
Journal of Medical Research 2007;53(5):17-23
Background: High glucose level can cause many serious complications, especially for type 2 diabetic patients. Poorly blood glucose control in type 2 diabetic patients usually induces serious complications. Objective: (1) To evaluate blood glucose control state and (2) To describe affected factors to blood glucose control in type 2 diabetic patients. Subjects and method: We carried out a survey on blood glucose control in 104 type 2 diabetic patients (based on HbA1c results), admitted to Dept of Endocrinology, Bach Mai Hospital from December 2005 to April 2006. 73.1 % of patients is female, average age is 63.4 years old, 57.7% has hypertension, and 62.5% has diabetes for \ufffd?5 years. Results:Blood glucose is poorly controlled in 80.8% (HbA1C > 7.5%), and good controlled in only 12.5% patients (HbA1C < 6.5%). Several affected factors are identify, such as patients were not educated and/or do not perform correctly nutritional and exercise therapy (48.1 %); not compliant with drug treatment; or not measure regularly blood glucose; and long duration of diabetes (p < 0.01). Conclusions: (1) Blood glucose in majority of type 2 diabetic patients is poorly controlled. (2) Factors affected are non - compliance with therapy, irregularly blood glucose measurement and long duration of diabetes.
Diabetes Mellitus
;
Type 2/ therapy
2.Antidiabetic and antioxidant activities of red seaweed Laurencia dendroidea
Nguyen Han THE ; Nguyen Huyen THI ; Nguyen Minh VAN ; Thi Lan Phuong Nguyen ; Thi Van Anh Tran ; Do Duy ANH ; Kim Moo SANG
Asian Pacific Journal of Tropical Biomedicine 2019;9(12):501-509
Objective: To investigate antidiabetic and antioxidant activities of the extract and fractions from Vietnamese red seaweed Laurencia dendroidea. Methods: The seaweed Laurencia dendroidea was extracted by using microwave-assisted extraction method in 80% methanol. The seaweed extract was then fractionated using different solvents (n-hexane, chloroform, ethyl acetate, butanol and water). These obtained fractions were evaluated for α-glucosidase inhibitory and antioxidant activities. Antioxidant activities were tested using DPPH, nitric oxide radical scavenging and metal chelating assays. The enzyme inhibition mode was determined using Lineweaver-Burk plot. For acidic and thermal stabilities, the ethyl acetate fraction was treated at pH 2.0 and 100 ℃, respectively. The residual inhibitory activity of the fraction was calculated based on the initial inhibitory activity. For in vivo antidiabetic activity, mice were divided into four groups, including normal control, diabetic control, diabetic mice treated with ethyl acetate fraction and diabetic mice treated with gliclazide. Blood glucose level of treated mice during acute and prolonged treatments was measured. To evaluate the toxicity of the ethyl acetate fraction, the body weight changes and activities of liver function enzymes (aspartate transaminase, alanine transaminase and gammaglutamyl transferase) were carried out. Results: The extract of Laurencia dendroidea showed strong α-glucosidase inhibitory and DPPH radical scavenging activities. Methanolic concentrations affected both α-glucosidase inhibitory and antioxidant activities. A 80% aqueous methanol was the suitable solvent for extraction of enzyme inhibitors and antioxidants. Among solvent fractions, ethyl acetate fraction had the highest inhibitory activities against α-glucosidase with a mixed type of inhibition and the strongest antioxidant activities, and was stable under acidic and thermal conditions. The ethyl acetate fraction treated diabetic mice significantly reduced blood glucose level compared with the diabetic control group (13.16 mmol/L vs. 22.75 mmol/L after 3 hours of treatment). Oral administration of ethyl acetate fraction did not exhibit toxicity at a dose of 100 mg/kg body weight as determined by body weight changes and liver biochemical parameters. Conclusions: Laurencia dendroidea could be a potential source for production of antidiabetic and antioxidative agents.
3.Investigation of hemostatic disorders in patients with congenital heart diseases undergoing open heart surgery at Hue Central Hospital
Sang Si Dong ; Minh Ngoc Nguyen ; Hoa Thi Thuy Phan ; Thuan Thi Nguyen ; Dung Thi Tran ; Hanh Phuoc Huynh
Journal of Medical Research 2007;51(4):55-62
Background: Open heart surgery with cardiopulmonary bypass (CPB) causes haemostatic abnormalities which result in postoperative excessive bleeding. Objectives: To investigate haemostatic disorders before - after CPB and postoperative bleeding. Subjects and methods: Sixty congenital cardiac patients with and without cyanosis were recruited consecutively. Hematology and coagulation tests were done 1 day before operation, 15 minutes after protamine administration, 2 and 6 hours after the operation in the intensive care unit (lCU). Mediastinal chest tube drainage (MCTO) was measured for the first 6h in the ICU. Results: Significant differences between 2 groups could be found for red blood cells, hemoglobin, hematocrit, fibrinogen, D-dimer, fibrinogen degradation products (FOP), von Kaulla and platelet aggregation to epinephrine before operation (p < 0.05). There were not significant differences in platelets, PT, APTT, platelet aggregation to adenosine diphosphate (AOP) in the acyanotic and cyanotic patients (p > 0.05). Most hematology parameters were decreased significantly and hemostasis measurements were prolonged after operation in both groups (p < 0.05). There was also the significant difference in MCTO between 2 groups (p < 0.05). Conclusion: Coagulation, hemostasis and fibrinolysis disorders; thrombocytopenia and acquired transient platelet dysfunction may be responsible for bleeding complications after CBP \r\n', u'\r\n', u'
Heart Defects
;
Congenital/ pathology
;
epidemiology
;
Hemostatic Disorders/ pathology
;
diagnosis
4.The Impact of Covid-19 on Older Adults' Finances, Well-Being and Fear
Chan Van Huynh ; Hai Thanh Phan ; Xuan Thanh Kieu Nguyen ; Kim-Sang Nguyen-Thi ; Vinh-Long Tran-Chi
ASEAN Journal of Psychiatry 2022;23(no.1):1-8
The COVID-19 pandemic outbreak and subsequent lockdowns impacted the mental health of numerous sociodemographic groups globally. This crisis can produce stress, overwhelm, and powerful emotions in susceptible people, especially older persons. Our study examined the relationship between well-being and fear of COVID-19 among older persons residing in Ho Chi Minh City, Vietnam, during the pandemic. A sociodemographic survey was undertaken. Two scales are used for a month of the COVID-19 outbreak: the Mental Health Continuum Short Form (MHC-SF) and the Fear of COVID-19 Scale (FCV-19S). We surveyed 158 senior citizens in Ho Chi Minh City between February and April 2021. There was no lockdown in Ho Chi Minh before the fourth wave of infection. Despite this, citizens have maintained high compliance with coronavirus prophylaxis. Sociodemographic data were described using descriptive statistics. A one-way MANOVA assessed the financial impact on older individuals' well-being. The Pearson correlation was employed to find the link between happiness and COVID-19 dread. During the COVID-19 pandemic, older persons who received various monthly allowances had statistically significant emotional and psychological well-being differences. There was no association between well-being and COVID-19 dread. The COVID-19 epidemic has disproportionately affected vulnerable groups. Older individuals are a risk population that requires material and mental care.
5.The Performance of a Modified Glasgow Blatchford Score in Predicting Clinical Interventions in Patients with Acute Nonvariceal Upper Gastrointestinal Bleeding: A Vietnamese Prospective Multicenter Cohort Study.
Duc Trong QUACH ; Ngoi Huu DAO ; Minh Cao DINH ; Chung Huu NGUYEN ; Linh Xuan HO ; Nha Doan Thi NGUYEN ; Quang Dinh LE ; Cong Minh Hong VO ; Sang Kim LE ; Toru HIYAMA
Gut and Liver 2016;10(3):375-381
BACKGROUND/AIMS: To compare the performance of a modified Glasgow Blatchford score (mGBS) to the Glasgow Blatchford score (GBS) and the pre-endoscopic Rockall score (RS) in predicting clinical interventions in Vietnamese patients with acute nonvariceal upper gastrointestinal bleeding (AN-VUGIB). METHODS: A prospective multicenter cohort study was conducted in five tertiary hospitals from May 2013 to February 2014. The mGBS, GBS, and pre-endoscopic RS scores were prospectively calculated for all patients. The accuracy of mGBS was compared with that of GBS and pre-endoscopic RS using area under the receiver operating characteristic curve (AUC). Clinical interventions were defined as blood transfusions, endoscopic or radiological intervention, or surgery. RESULTS: There were 395 patients including 128 (32.4%) needing endoscopic treatment, 117 (29.6%) requiring blood transfusion and two (0.5%) needing surgery. In predicting the need for clinical intervention, the mGBS (AUC, 0.707) performed as well as the GBS (AUC, 0.708; p=0.87) and outperformed the pre-endoscopic RS (AUC, 0.594; p<0.001). However, none of these scores effectively excluded the need for endoscopic intervention at a threshold of 0. CONCLUSIONS: mGBS performed as well as GBS and better than pre-endoscopic RS for predicting clinical interventions in Vietnamese patients with ANVUGIB.
Asian Continental Ancestry Group*
;
Blood Transfusion
;
Cohort Studies*
;
Gastrointestinal Hemorrhage
;
Hemorrhage*
;
Humans
;
Prognosis
;
Prospective Studies*
;
ROC Curve
;
Tertiary Care Centers
6.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
;
Dendritic Cells
;
Glycosides*
;
Interleukin-12
;
Interleukin-6
;
Rhizophoraceae*
;
Triterpenes*
;
Tumor Necrosis Factor-alpha
7. Antidiabetic and antioxidant activities of red seaweed Laurencia dendroidea
The NGUYEN ; Thi NGUYEN ; Van NGUYEN ; Thi NGUYEN ; Thi TRAN ; Anh DO ; Sang KIM
Asian Pacific Journal of Tropical Biomedicine 2019;9(12):501-509
Objective: To investigate antidiabetic and antioxidant activities of the extract and fractions from Vietnamese red seaweed Laurencia dendroidea. Methods: The seaweed Laurencia dendroidea was extracted by using microwave-assisted extraction method in 80% methanol. The seaweed extract was then fractionated using different solvents (n-hexane, chloroform, ethyl acetate, butanol and water). These obtained fractions were evaluated for α -glucosidase inhibitory and antioxidant activities. Antioxidant activities were tested using DPPH, nitric oxide radical scavenging and metal chelating assays. The enzyme inhibition mode was determined using Lineweaver-Burk plot. For acidic and thermal stabilities, the ethyl acetate fraction was treated at pH 2.0 and 100 °C, respectively. The residual inhibitory activity of the fraction was calculated based on the initial inhibitory activity. For in vivo antidiabetic activity, mice were divided into four groups, including normal control, diabetic control, diabetic mice treated with ethyl acetate fraction and diabetic mice treated with gliclazide. Blood glucose level of treated mice during acute and prolonged treatments was measured. To evaluate the toxicity of the ethyl acetate fraction, the body weight changes and activities of liver function enzymes (aspartate transaminase, alanine transaminase and gamma-glutamyl transferase) were carried out. Results: The extract of Laurencia dendroidea showed strong α-glucosidase inhibitory and DPPH radical scavenging activities. Methanolic concentrations affected both α-glucosidase inhibitory and antioxidant activities. A 80% aqueous methanol was the suitable solvent for extraction of enzyme inhibitors and antioxidants. Among solvent fractions, ethyl acetate fraction had the highest inhibitory activities against α -glucosidase with a mixed type of inhibition and the strongest antioxidant activities, and was stable under acidic and thermal conditions. The ethyl acetate fraction treated diabetic mice significantly reduced blood glucose level compared with the diabetic control group (13.16 mmol/L vs. 22.75 mmol/L after 3 hours of treatment). Oral administration of ethyl acetate fraction did not exhibit toxicity at a dose of 100 mg/kg body weight as determined by body weight changes and liver biochemical parameters. Conclusions: Laurencia dendroidea could be a potential source for production of antidiabetic and antioxidative agents.
8.Diagnostic Accuracy of a Novel On-site Virtual Fractional Flow Reserve Parallel Computing System
Hyung Bok PARK ; Yeonggul JANG ; Reza ARSANJANI ; Minh Tuan NGUYEN ; Sang Eun LEE ; Byunghwan JEON ; Sunghee JUNG ; Youngtaek HONG ; Seongmin HA ; Sekeun KIM ; Sang Wook LEE ; Hyuk Jae CHANG
Yonsei Medical Journal 2020;61(2):137-144
9.Optimization and Limitation of Calcium Ionophore to Generate DCs from Acute Myeloid Leukemic Cells.
Thanh Nhan Nguyen PHAM ; Bo Hwa CHOI ; Hyun Kyu KANG ; Chun Chi JIN ; Nguyen Hoang Tuyet MINH ; Sang Ki KIM ; Jong Hee NAM ; Deok Hwan YANG ; Yeo Kyeoung KIM ; Hyeoung Joon KIM ; Ik Joo CHUNG ; Je Jung LEE
Cancer Research and Treatment 2007;39(4):175-180
PURPOSE: Calcium ionophore (CI) is used to generate dendritic cells (DCs) from progenitor cells, monocytes, or leukemic cells. The aim of this study was to determine the optimal dose of CI and the appropriate length of cell culture required for acute myeloid leukemia (AML) cells and to evaluate the limitations associated with CI. MATERIALS AND METHODS: To generate leukemic DCs, leukemic cells (4 x 10(6) cells) from six AML patients were cultured with various concentrations of CI and/or IL-4 for 1, 2 or 3 days. RESULTS: Potent leukemic DCs were successfully generated from all AML patients, with an average number of 1.2 x 10(6) cells produced in the presence of CI (270 ng/ml) for 2 days. Several surface molecules were clearly upregulated in AML cells supplemented with CI and IL-4, but not CD11c. Leukemic DCs cultured with CI had a higher allogeneic T cell stimulatory capacity than untreated AML cells, but the addition of IL-4 did not augment the MLR activity of these cells. AML cells cultured with CI in the presence or absence of IL-4 showed increased levels of apoptosis in comparison to primary cultures of AML cells. CONCLUSION: Although CI appears to be advantageous in terms of time and cost effectiveness, the results of the present study suggest that the marked induction of apoptosis by CI limits its application to the generation of DCs from AML cells.
Apoptosis
;
Calcium*
;
Cell Culture Techniques
;
Cost-Benefit Analysis
;
Dendritic Cells
;
Humans
;
Interleukin-4
;
Leukemia, Myeloid, Acute
;
Monocytes
;
Stem Cells
10.Control Efficacy of Streptomyces sp. A501 against Ginseng Damping-off and Its Antifungal Substance.
Nguyen VAN MINH ; E Eum WOO ; Gang Seon LEE ; Dae Won KI ; In Kyoung LEE ; Sang Yeob LEE ; Kyeonghun PARK ; Jaekyeong SONG ; Jae Eul CHOI ; Bong Sik YUN
Mycobiology 2017;45(1):44-47
Ginseng damping-off, caused by the fungal pathogens Rhizoctonia solani and Pythium sp., is a critical disease in ginseng seedling. In a continuing effort to find microorganisms with the potential of acting as a biocontrol agent against Rhizoctonia damping-off, we found that a Streptomyces sp. A501 showed significant antifungal activity against Rhizoctonia solani. In field experiment to test the efficacy of Streptomyces sp. A501 in controlling ginseng damping-off, the incidence of damping-off disease was meaningfully reduced when ginseng seeds were soaked in the culture broth of Streptomyces sp. A501 before sowing. To perform characterization of the antifungal compound, we isolated it from the culture broth of strain A501 through Diaion HP-20 and silica gel column chromatographies and preparative high-performance liquid chromatography. The structure of the antifungal compound was assigned as fungichromin by spectroscopic methods, mainly nuclear magnetic resonance and electrospray ionization-mass analysis.
Chromatography
;
Chromatography, Liquid
;
Incidence
;
Magnetic Resonance Spectroscopy
;
Panax*
;
Pythium
;
Rhizoctonia
;
Seedlings
;
Silica Gel
;
Streptomyces*