1.Viet Duc operation: professional view and international
Journal of Vietnamese Medicine 1998;6(2):25-27
The operation for separating attached twin named Viet Duc successfully carried out 10 years ago. This was historical operation in the country and in the world. The operation was implemented in Tu Du hospital and within 15 hours. It has been influencing both on the professional field and international community.
Surgery
2.Effects of Compounds from Physalis angulata on Fatty Acid Synthesis and Glucose Metabolism in HepG2 Cells via the AMP-activated Protein Kinase Pathway
Hoang Thai HOA ; Nguyen Thi THU ; Nguyen Thuong DONG ; Tran Thi OANH ; Tran Thi HIEN ; Do Thi HA
Natural Product Sciences 2020;26(3):200-206
The ability of the total extract from Physalis angulata; three fractions after partitioning with n-hexane, ethyl acetate (TBE), and water; and four withanolides (compounds 1 – 4) to phosphorylate 5'-adenosine monophosphate-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) in HepG2 cells was evaluated. The TBE fraction (50 μg/mL) activated p-ACC and p-AMPK expression most strongly. Compounds 1 – 4 (10 μM) upregulated p-ACC expression at different levels. Compound 4 induced the most significant changes in p-AMPK expression, followed by 1 and 2. Sterol regulatory element-binding proteins (SREBPs) play a functional role in the transcriptional regulation of the lipogenic pathway, including fatty acid synthase (FAS) and ACC. The effects of compounds 2 and 4 (10 μM) on FAS and SREBP-1c expression under high glucose conditions (30 mM) in HepG2 cells were evaluated further. Both dose-dependently inhibited FAS and SREBP-1c expression as well as lipid accumulation (1 – 10 μM) were compared to high-concentration glucose control, which upregulated FAS and SREBP-1c. These results suggest that compounds 2 and 4 upregulate AMPK, suppress FAS and SREBP-1c, and have potential effects on glucose and lipid metabolism.
3.Compare the outcomes of minimally invasive versus open transforaminal lumbar interbody fusion in treatment lumbar spinal stenosis
Duc Duy Tri TRAN ; Duc Phong VO
Hue Journal of Medicine and Pharmacy 2023;13(7):23-30
Background: Minimally invasive-transforaminal lumbar interbody fusion has become an effective method to treat lumbar spinal stenosis and is widely used. This article compares the effectiveness of minimally invasive and open transforaminal lumbar interbody fusion surgery in treating lumbar spinal stenosis. Methods: From 9/2018 to 10/2022, 104 patients with lumbar spinal stenosis were treated with transforaminal lumbar interbody fusion, including 52 cases in the minimally invasive surgery group and 52 cases in the open surgery group. Parameters such as surgery time, blood loss, postoperative time, hospital stay, and complications were recorded. The Visual Analog Scale (VAS) was used to assess low back and leg pain, and the Oswestry Disability Index (ODI) was used to assess pain and functional outcome in preoperation, three months, and six months after surgery. Follow-up plain X ray were taken to evaluate the fusion after 2 years. Results: The two groups found no significant differences in age, sex ratio, and percentage of cause spinal stenosis data. Compared with the open surgery group, the minimally invasive surgery group had less intraoperative blood loss (127.50 ± 27.99 mL vs 25.12 ± 62.05 mL, P < 0.001), bed immobilization time shorter (1.21 ± 0.41 days versus 2.40 ± 0.60 days, P < 0.001) and shorter postoperative hospital stay (4.42 ± 0.94 days versus 6.77 ± 1.13 days, P < 0.001). VAS scores of low back pain and leg pain and ODI scores of the two groups decreased statistically significantly compared to before surgery, but there was no difference between the two groups after six months. X-ray showed no significant difference in fusion of the two groups. Conclusion: Our study showed that minimally invasive transforaminal lumbar interbody fusion is a safe and effective option in treating lumbar spinal stenosis and has the advantage of less blood loss and less hospital stay compared to open surgery.
4.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
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Congenital/ pathology
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epidemiology
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Hemostatic Disorders/ pathology
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diagnosis
6.Closing the gap for cervical cancer research in Vietnam: current perspectives and future opportunities: a report from the 5th Gynecologic Cancer InterGroup (GCIG) Cervical Cancer Research Network (CCRN) Education Symposium
Ngoc T.H. PHAN ; Quy T. TRAN ; Nhan P.T. NGUYEN ; Hang T. NGUYEN ; Linh D.N. TRAN ; Viet C. PHAM ; Katherine BENNETT ; Adriana CHÁVEZ-BLANCO ; Marie PLANTE ; Dong Hoon SUH ; Remi NOUT ; David S.P. TAN
Journal of Gynecologic Oncology 2023;34(5):e88-
7.Inactivated pep27 mutant as an effective mucosal vaccine against a secondary lethal pneumococcal challenge in mice.
Sang Yoon CHOI ; Thao Dang Hien TRAN ; David E BRILES ; Dong Kwon RHEE
Clinical and Experimental Vaccine Research 2013;2(1):58-65
PURPOSE: A pep27 mutant may be able to elicit mucosal immunity against pneumococcal diseases, and could be employed as an inexpensive attenuated vaccine. However, this particular mutant contains an erythromycin-resistance marker. The purpose of the current study is to develop a markerless pep27 mutant and assess whether this inactivated mutant is able to induce mucosal immunity. MATERIALS AND METHODS: Mice were vaccinated intranasally with the inactivated markerless pep27 mutant every 2 weeks for a total of three times, after which time serum samples were analyzed for antibody titers. The mice were then challenged with a lethal D39 strain and their survival time was measured. The cross-reactivity of the antisera against pep27 was also compared to other mutant serotypes. RESULTS: Intranasal immunization of mice with the inactivated markerless pep27 mutant provides effective protection and rapidly cleared bacterial colonization in vivo. Moreover, antisera raised against the pep27 mutant may cross-react with several other serotype strains. CONCLUSION: Intranasal immunization with the inactivated pep27 mutant may be able to provide mucosal immunity, and could represent an efficient mucosal vaccine.
Animals
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Colon
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Immune Sera
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Immunity, Mucosal
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Immunization
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Mice
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Sprains and Strains
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Streptococcus pneumoniae
8.Surveillance for Vibrio cholerae 01 and vibriophages in surface water - the factors for prediction of cholera outbreaks
Tu Dong Nguyen ; Cuong Tuan Ngo ; Thu Hoai Nguyen ; Huong Thanh Le ; Minh Binh Nguyen ; Ninh Kim Do ; Diu Van Phan ; Thuy Minh Tran
Journal of Preventive Medicine 2008;96(4):13-18
Background: In countries that cholera outbreaks commonly occurs, surveillance of surface water is important to control the epidemics. Kappa phage (K139) of Vibrio cholerae is related to epidemic El Tor and O139 strains in various countries. Objectives: To study the relationships between V. cholerae 01 and vibriophages in surface water in Thai Binh and Hai Phong city and to determine the predictors of cholera outbreaks. Subjects and method: Total of 82 water samples were collected by shrimp swab method in Hai Phong and Thai Binh in June and September 2007, where cholera outbreaks occurred. The enriched culture method and direct peR were applied to define the relationships between vibriophages and V. cholerae 01 in surface water. Results: The rates of detecting kappa junction with chromosomes of V. cholerae 01 in Hai Phong and Thai Binh were 10% and 15% in June 2007, 35% and 41% in September 2007. The rates of detecting vibriophages in Hai Phong and Thai Binh were 15% and 15% in June 2007, 25% and 36% in September 2007. The rates of Fs1 and Fs2 detected by PCR method were 70% and 100% in Hai Phong at June and September 2007, and were 57% and 100% in Thai Binh at June and September 2007, respectively. V. cholerae 01, O139 weren\u2019t found in water samples. Conclusion: The presences of vibriophages (kappa phage and fs1 fs2) in surface water contaminated with V. cholerae 01 were dependent on the ability of the vibriophages to infect and lyse these bacteria. Vibriophages played a role in the transfer of cholera toxin and pathogenic factors. Surveillance by detecting V. cholerae 01 and vibriophages in surface water may be a feasible means of predicting outbreaks of cholera before a significant number of cases occur.
Vibrio cholerae 01
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vibriophages
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surface water
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cholera outbreaks
9.The Therapeutic Role of Nanoparticle Shape in Traumatic Brain Injury : An in vitro Comparative Study
Dong Hyuk YOUN ; Harry JUNG ; Ngoc Minh TRAN ; Jin Pyeong JEON ; Hyojong YOO
Journal of Korean Neurosurgical Society 2022;65(2):196-203
Objective:
: To perform a comparative analysis of therapeutic effects associated with two different shapes of ceria nanoparticles, ceria nanorods (Ceria NRs) and ceria nanospheres (Ceria NSs), in an in vitro model of traumatic brain injury (TBI).
Methods:
: In vitro TBI was induced using six-well confluent plates by manually scratching with a sterile pipette tip in a 6×6-square grid. The cells were then incubated and classified into cells with scratch injury without nanoparticles and cells with scratch injury, which were treated separately with 1.16 mM of Ceria NSs and Ceria NRs. Antioxidant activities and anti-inflammatory effects were analyzed.
Results:
: Ceria NRs and Ceria NSs significantly reduced the level of reactive oxygen species compared with the control group of SH-SY5Y cells treated with Dulbecco’s phosphate-buffered saline. The mRNA expression of superoxide dismutases was also reduced in nanoparticle-treated SH-SY5Y cells, but apparently the degree of mRNA expression decrease was not dependent on the nanoparticle shape. Exposure to ceria nanoparticles also decreased the cyclooxygenase-2 expression, especially prominent in Ceria NR-treated group than that in Ceria NS-treated group.
Conclusion
: Ceria nanoparticles exhibit antioxidant and anti-inflammatory effects in TBI models in vitro. Ceria NRs had better antiinflammatory effect than Ceria NSs, but showed similar antioxidant activity.
10.Erratum: Closing the gap for cervical cancer research in Vietnam: current perspectives and future opportunities: a report from the 5th Gynecologic Cancer InterGroup (GCIG) Cervical Cancer Research Network (CCRN) Education Symposium
Ngoc T.H. PHAN ; Quy T. TRAN ; Nhan P.T. NGUYEN ; Hang T. NGUYEN ; Linh D.N. TRAN ; Viet C. PHAM ; Katherine BENNETT ; Adriana CHÁVEZ-BLANCO ; Marie PLANTE ; Fabrice R LECURU ; Dong Hoon SUH ; Remi NOUT ; David S.P. TAN
Journal of Gynecologic Oncology 2023;34(6):e89-