1.The recurred luxation of shoulder and the application of arthroscopy surgery
Journal of Medical and Pharmaceutical Information 2003;0(5):12-14
Shoulder joint is the joint with largest exercise range. Because of its surgical and functional features, glenohumeral arm joint is the joint with the highest rate of luxation in the body. There are many methods of surgery, however laparoscopic surgery has been proven to have prominent advantages which are less invasive, less pain, good rehabilitation, avoid complications of big surgery, reduce hospitalization time and use of antibiotics. This technique allows to access the deep and narrow surgical areas which are difficult to operate in open surgery
Arthroscopy
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Shoulder Joint
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Surgery
2.Platelet aggregation induced by ADP and collagen in dyslipidemia patients
Nga Thi Hong Dao ; Ha Thi Thu Nguyen ; Khai Gia Pham
Journal of Medical Research 2007;51(4):44-48
Background: Dyslipidemia is an important risk factor of atherosclerosis. The endothelia can be injured by plaque that advantages for platelet adheadsion, aggregation and produces thrombosis. Objectives: (1) To evaluate the changes of platelet aggregation induced by ADP and collagen in hyperlipidemic patients; (2) To identify the relationship between platelet aggregation and various types of dyslipidemia. Subjects and methods: A descriptive cross sectional non-randomised control trial method was employed in this study. A total of 128 hyperlipidemic patients (in which 40 patients were type IIa, 36 were type lib, and 52 were type IV), and a control group of 88 people were measured the aggregation in platelet - rich plasma (PRP) induced by ADP and collagen. Results: There was no significant difference about the platelet counts in both intervention and control groups (p>0.05). ADP and collagen induced platelet aggregation increased significantly (p<0.01) in intervention group when compared to control group. A significant correlation was found between the plasma triglyceride concentration and platelet aggregation induced by ADP and collagen with r = 0,335 and 0,332 respectively, while that of cholesterol and ADP was 0,304. Conclusion: Platelet aggregation increased in hyperlipidemic patients and had a significant correlation with plasma triglyceride concentration. \r\n', u'\r\n', u'
Dyslipidemias/ pathology
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therapy
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Platelet Aggregation
3.Effects of simvastatin on coagulation parameters in dyslipidemia patients
Nga Thi Hong Dao ; Ha Thi Thu Nguyen ; Khai Gia Pham
Journal of Medical Research 2008;58(5):23-29
Background: Statin and its derivate (simvastatin, autorvastatin, etc...) are used for dyslipidemia treatment and preventing thrombose. However, the mechanism of the antithrombotic action is still being studied. Objectives: (1) To study coagulation parameters in dyslipidemia. (2) To evaluate the effects of simvastatin on coagulation parameters in dyslipidemia patients. Subject and Method: A prospective study was carried out in a sample of 22 patients with primary hypercholesterolemia (type IIa), who were treated with simvastatin 20mg/d for 1 month. The lipid parameters (cholesterol, triglycerid, HDL, LDL) and coagulation parameters (PT, APTT, fibrinogen, factor II, V, VII, X, VIII, IX, XI) were compared between pre and post therapy, and to the control group (59 healthy people). Results: Most of coagulation parameter values (except factor VIII and X) of the pre treatment group were significantly change towards hypercoagulation (p<0.05%) when compared to the control group. After treatment, PT rate, APTT, APTT rate, fibrinogen, factor VII and IX were significantly changed towards coagulation when compared to pre treatment (p<0.05%). The plasma coagulation and lipid parameters of more than 50% of the hypercholesterolemia patients returned to normal values after treatment. Conclusions: Simvastatin therapy on dyslipidemia patients can reduce not only the level of serum lipid, but also coagulation, and proved its effectiveness in the prevention of thrombosis.
Simvastatin
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coagulation
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dyslipidemia
4.Phenolic Constituents from Balanophora laxiflora with their Anti-inflammatory and Cytotoxic Effects
Nguyen Thi HONG ANH ; Nguyen Thuy DUONG ; Pham Duc VINH ; Do Thi HA
Natural Product Sciences 2021;27(1):49-53
Balanophora laxiflora Hemsl. (Balanophoraceae) is a traditional medicinal plant with a diverse array of biological activities. In our exploration of new bioactive constituents from B. laxiflora, we isolated five compounds, including a new lignan, balanophorone (5), and four known phenolic compounds (1–4). The chemical structures of these compounds were determined by extensive spectroscopic analyses, including 1D and 2D NMR, HR-ESI-MS, and CD. In addition, we evaluated the effects of each of the isolates (1–5) on the messenger RNA expression levels of tumor necrosis factor (TNF)-α and cyclooxygenase (COX)-2 in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages and cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cells. Compound 2 showed significant inhibition of LPS-induced COX-2 and TNF-α expression in RAW 264.7 macrophages, while compound 4 showed moderate cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cells, with IC 50 values of 18.3 and 30.7 μM, respectively. No significant effects on the viability of normal mammary epithelial cells were observed.
5.Phenolic Constituents from Balanophora laxiflora with their Anti-inflammatory and Cytotoxic Effects
Nguyen Thi HONG ANH ; Nguyen Thuy DUONG ; Pham Duc VINH ; Do Thi HA
Natural Product Sciences 2021;27(1):49-53
Balanophora laxiflora Hemsl. (Balanophoraceae) is a traditional medicinal plant with a diverse array of biological activities. In our exploration of new bioactive constituents from B. laxiflora, we isolated five compounds, including a new lignan, balanophorone (5), and four known phenolic compounds (1–4). The chemical structures of these compounds were determined by extensive spectroscopic analyses, including 1D and 2D NMR, HR-ESI-MS, and CD. In addition, we evaluated the effects of each of the isolates (1–5) on the messenger RNA expression levels of tumor necrosis factor (TNF)-α and cyclooxygenase (COX)-2 in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages and cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cells. Compound 2 showed significant inhibition of LPS-induced COX-2 and TNF-α expression in RAW 264.7 macrophages, while compound 4 showed moderate cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cells, with IC 50 values of 18.3 and 30.7 μM, respectively. No significant effects on the viability of normal mammary epithelial cells were observed.
6.Isolation and Cytotoxic Potency of Endophytic Fungi Associated with Dysosma difformis, a Study for the Novel Resources of Podophyllotoxin
Hoa Thi TRAN ; Giang Thu NGUYEN ; Hong Ha Thi NGUYEN ; Huyen Thi TRAN ; Quang Hong TRAN ; Quang Ho TRAN ; Ngoc Thi NINH ; Phat Tien DO ; Ha Hoang CHU ; Ngoc Bich PHAM
Mycobiology 2022;50(5):389-398
Endophytic fungi are promising sources for the production of podophyllotoxin-an important anticancer compound, replacing depleted medical plants. In this study, the endophytes associated with Dysosma difformis-an ethnomedicinal plant species were isolated to explore novel sources of podophyllotoxin. Fifty-three endophytic fungi were isolated and identified by morphological observation and ITS-based rDNA sequencing, assigning them to 27 genera in 3 divisions. Fusarium was found the most prevalent genus with a colonization frequency of 11.11%, followed by Trametes (9.26%) and Penicillium (7.41%). Phylogenetic trees were constructed for the endophytic fungi community in two collection sites, Ha Giang and Lai Chau, revealing the adaptation of the species to the specific tissues and habitats. Cytotoxic activity of endophytic fungal extracts was investigated on cancer cell lines such as SK-LU-1, HL-60, and HepG2, demonstrating strong anti-cancer activity of six isolates belonging to Penicillium, Trametes, Purpureocillium, Aspergillus, and Ganoderma with IC 50 value of lower than 10 10 µg/mL. The presence of podophyllotoxin was indicated in Penicillium, Trametes, Aspergillus and for the first time in Purpureocillium and Ganoderma via high-performance liquid chromatography, which implied them as a potential source of this anticancer compound.
7.An Outbreak of Trichinosis with Molecular Identification of Trichinella sp. in Vietnam.
Nguyen Van DE ; Nguyen Vu TRUNG ; Nguyen Hong HA ; Vu Thi NGA ; Nguyen Minh HA ; Pham Thanh THUY ; Le Van DUYET ; Jong Yil CHAI
The Korean Journal of Parasitology 2012;50(4):339-343
The 5th outbreak of trichinosis occurred in a mountainous area of North Vietnam in 2012, involving 24 patients among 27 people who consumed raw pork together. Six of these patients visited several hospitals in Hanoi for treatment. Similar clinical symptoms appeared in these patients within 5-8 days after eating infected raw pork, which consisted of fever, muscle pain, difficult moving, edema, difficult swallowing, and difficult breathing. ELISA revealed all (6/6) positive reactions against Trichinella spiralis antigen and all cases showed positive biopsy results for Trichinella sp. larvae in the muscle. The larvae detected in the patients were identified as T. spiralis (Vietnamese strain) by the molecular analysis of the mitochondrial cytochrome c oxidase subunit III (cox3) gene.
Adult
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Animals
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Antigens, Helminth/analysis/immunology
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*Disease Outbreaks
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Electron Transport Complex IV/genetics
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Enzyme-Linked Immunosorbent Assay
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Female
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Humans
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Larva
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Male
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Meat/*parasitology
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Mitochondria/genetics
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Muscles/parasitology/pathology
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Swine
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Trichinella spiralis/genetics/immunology/*isolation & purification
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Trichinellosis/*epidemiology/parasitology/pathology
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Vietnam/epidemiology
8.Identification of Enterovirus C105 for the first time in New Zealand
Cong Thanh Duong ; Tran Hien Nguyen ; Anh Tuan Nguyen ; Thi Thanh Ha Hoang ; Hong Thang Pham ; Thi THanh Ha Nguyen ; Anh Tuan Le ; Dai Quang Tran ; Hong Tram Tran ; Le Hai Nguyen ; Thi Thu Huong Phan ; Hai Son Vo ; Hoang Duc Bui ; Thien Nga Nguyen ; David Jacka ; Keith Sabin
Western Pacific Surveillance and Response 2015;6(1):52-54
In this report we describe a new approach in HIV sentinel surveillance that was piloted in Viet Nam in 2009 and is currently being rolled out in all provinces. It comprises a brief behavioural questionnaire added to the HIV sentinel surveillance surveys conducted routinely among people who inject drugs, female sex workers and men who have sex with men. Timely reporting of data from this system has resulted in improvements to HIV prevention efforts for most at-risk populations.
9.Management of Antibiotic-Resistant Helicobacter pylori Infection: Perspectives from Vietnam
Vu VAN KHIEN ; Duong Minh THANG ; Tran Manh HAI ; Nguyen Quang DUAT ; Pham Hong KHANH ; Dang Thuy HA ; Tran Thanh BINH ; Ho Dang Quy DUNG ; Tran Thi Huyen TRANG ; Yoshio YAMAOKA
Gut and Liver 2019;13(5):483-497
Antibiotic resistance is the most important factor leading to the failure of eradication regimens. This review focuses on the prevalence of Helicobacter pylori primary and secondary resistance to clarithromycin, metronidazole, amoxicillin, levofloxacin, tetracycline, and multidrug in Vietnam. We searched the PubMed, EMBASE, Vietnamese National Knowledge Infrastructure, and Vietnamese Biomedical databases from January 2000 to December 2016. The search terms included the following: H. pylori infection, antibiotic (including clarithromycin, metronidazole, amoxicillin, levofloxacin, tetracycline, and multidrug) resistance in Vietnam. The data were summarized in an extraction table and analyzed manually. Finally, Excel 2007 software was used to create charts. Ten studies (three studies in English and seven in Vietnamese) were included in this review. A total of 308, 412, 523, 408, 399, and 268 H. pylori strains were included in this review to evaluate the prevalence of H. pylori primary resistance to amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance, respectively. Overall, the primary resistance rates of amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance were 15.0%, 34.1%, 69.4%, 27.9%, 17.9% and 48.8%, respectively. Secondary resistance rates of amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, and multidrug resistance were 9.5%, 74.9%, 61.5%, 45.7%, 23.5% and 62.3%, respectively. In Vietnam, primary and secondary resistance to H. pylori is increasing over time and affects the effectiveness of H. pylori eradication.
Amoxicillin
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Asian Continental Ancestry Group
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Bismuth
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Clarithromycin
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Drug Resistance, Microbial
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Drug Resistance, Multiple
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Helicobacter pylori
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Helicobacter
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Humans
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Levofloxacin
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Metronidazole
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Prevalence
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Tetracycline
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Vietnam
10.Understanding the COVID-19 Infodemic: Analyzing User-Generated Online Information During a COVID-19 Outbreak in Vietnam
Ha-Linh QUACH ; Thai Quang PHAM ; Ngoc-Anh HOANG ; Dinh Cong PHUNG ; Viet-Cuong NGUYEN ; Son Hong LE ; Thanh Cong LE ; Dang Hai LE ; Anh Duc DANG ; Duong Nhu TRAN ; Nghia Duy NGU ; Florian VOGT ; Cong-Khanh NGUYEN
Healthcare Informatics Research 2022;28(4):307-318
Objectives:
Online misinformation has reached unprecedented levels during the coronavirus disease 2019 (COVID-19) pandemic. This study analyzed the magnitude and sentiment dynamics of misinformation and unverified information about public health interventions during a COVID-19 outbreak in Da Nang, Vietnam, between July and September 2020.
Methods:
We analyzed user-generated online information about five public health interventions during the Da Nang outbreak. We compared the volume, source, sentiment polarity, and engagements of online posts before, during, and after the outbreak using negative binomial and logistic regression, and assessed the content validity of the 500 most influential posts.
Results:
Most of the 54,528 online posts included were generated during the outbreak (n = 46,035; 84.42%) and by online newspapers (n = 32,034; 58.75%). Among the 500 most influential posts, 316 (63.20%) contained genuine information, 10 (2.00%) contained misinformation, 152 (30.40%) were non-factual opinions, and 22 (4.40%) contained unverifiable information. All misinformation posts were made during the outbreak, mostly on social media, and were predominantly negative. Higher levels of engagement were observed for information that was unverifiable (incidence relative risk [IRR] = 2.83; 95% confidence interval [CI], 1.33–0.62), posted during the outbreak (before: IRR = 0.15; 95% CI, 0.07–0.35; after: IRR = 0.46; 95% CI, 0.34-0.63), and with negative sentiment (IRR = 1.84; 95% CI, 1.23–2.75). Negatively toned posts were more likely to be misinformation (odds ratio [OR] = 9.59; 95% CI, 1.20–76.70) or unverified (OR = 5.03; 95% CI, 1.66–15.24).
Conclusions
Misinformation and unverified information during the outbreak showed clustering, with social media being particularly affected. This indepth assessment demonstrates the value of analyzing online “infodemics” to inform public health responses.