On 138 serum samples taken in the first 7 days of acute syndrome of brain, by MAC-ELISA technique 95 samples were determined as positive, 68.84% was positive. 43 samples taken in the first 7 days of the disease there was no detected antivirus IgM antibody but this could not concluded as negative, but may be a late antibody response or may be another cause of acute brain syndrome. For assuring the accuracy of the diagnosis, the samples taken in the first 7 days of the disease must be taken again after 7 day to verify the results.
Encephalitis, Japanese ; Diagnosis ; Enzyme-Linked Immunosorbent Assay

Iodosoja is an iodine containing organic compound to treat the goiter. This study aimed at setting up the method of quality control of iodosoja. The method involved the qualitative analysis (physical and chemical properties), quantitative analysis (quantification of free iodine, and total organic iodine as chemical method and spectrometry) and determination of stability (selflife) of iodosoja
Quality Control ; Iodine

Vnukovo-32 (cell culture rabies virus vaccine strain) was propagated experimentally in primary hamster kidney cell (PHKC), primary Chick embryo fibroblast cell (CEF) and human diploid cell (WI-38). These 3 cell lines were infected with Vnukovo-32 by the same mount of infection (MOl) - lLD50/l000 cells. The result showed that the Vnukovo-32 was adapted on all experimental cell lines, met the criteria of master seed (the titer ranging 6.4-7.5 log LD50/ml), and reached the highest titer on the 7th - 9th day postinfection in three cell groups. Moreover, the highest titer of Vnukovo-32 was met in human diploid cell (WI-38), then in PHCK, and the lowest was in CEF. From these results, it is suitable to use WI-38 to propagate Vnukovo-32 for master and working seed. The procedure for propagation of Vnukovo-32 is set up.
Rabies Vaccines ; Cells

In vitro bioavailability of ketoprofen 200mg long acting tablets by the oral were studied. Using basket dissolution tester at 120rpm. Released ketoprofen was determined by a UV – spectrophotometer at 260nm. Ketoprofen plasma levels on carefully chosen 6 healthy volunteers were within treatment which reached from 4 to 36 hours. 200mg ketoprofen LP tablets gradually released ketoprofen within 24 hours and released about 80% after 18 hours. Pharmacological parameter of ketoprofen 200mg long acting tablets have the same value compared with the results which have been published
Biological Availability ; Pharmaceutical Preparations ; Ketoprofen ; tablets ; drugs

Introduction: Rabies is a serious problem in the area of public health in developing countries including Vietnam. The death rate is almost 100%, however rabies can be prevented and preventively treated by vaccine, or a combination between vaccine with rabies resistant serum. The production of Vero cell culture vaccine is becoming a common trend worldwide because of its effective protection and safety. There is a requirement for the domestic production of cell cultured rabies vaccine. \r\n', u'Objectives: To determine the adaptive ability of VNUCOVO - 32 rabies vaccine strain into Vero cell. \r\n', u'Subjects and Method: Rabies vaccine propagation strains the rat\u2019s kidney cells. VNUCOVO - 32 was cultured into Vero cell with different conditions such as pH, temperature, multiplicity of infection (MOl) and time of virus harvests to discover the optimal conditions for virus propagation. \r\n', u'Results: The optimal condition for VNUCOVO - 32 propagation into vero cell with MOl 0.3, pH 7.4 and temperature is 37\xb0C. The highest titer achieves 103,4FFLJ/ml. The best time for virus harvest is 12 - 13 days post inoculation. \r\n', u'Conclusion: VNUCOVO rabies vaccine strain can penetrate and propagate into vera cell. \r\n', u'
Rabies virus ; VNKONO \u2013 32 strain ; Vero cell

Aim: DNA molecular size markers or DNA ladders play a vital role in molecular biology laboratories where DNA electrophoresis experiments are usually conducted. This study aimed to produce a 100 bp DNA ladder at laboratory scale, which could be applied to determine the size of DNA fragments in molecular biology experiments. Methodology and results: In this study, 14 primers including 4 forwards and 10 reverses were designed based on the 16S rRNA gene sequence of Bacillus subtilis. These primers were able to amplify 10 DNA fragments with accurate sizes from 100 to 1000 bp. Furthermore, touchdown PCR was involved to maximize the specificity and yield of PCR products. Ten DNA fragments with the sizes including 100, 200, 300, 400, 500, 600, 700, 800, 900 and 1000 bp were synthesized, and such bands were equivalent with commercial DNA ladders. Moreover, the quantity and quality of PCR products were measured using a nanodrop spectrophotometer. The optimal concentration ratios between such fragments (100- 1000 bp) were 800, 300, 150, 150, 500, 50, 50, 50, 50 and 50 (ng/µL), respectively. These ratios showed the clear and high resolution on 1.5% agarose gel. Conclusion, significance and impact of the study The results indicated that 16S rRNA gene of B. subtilis was a potential material for DNA ladder preparation due to the multiple copies number of this gene. Furthermore, in combination with touchdown PCR, the nonspecific bands were reduced, and the products could be used directly without the need of purification step.
Bacillus subtilis--genetics

Understanding the morphology of teeth is crucial in restorative dentistry in terms of restoring teeth’ anatomy, aesthetics, and function. Objectives: (1) this study describes an innovative method of teaching and learning tooth anatomy that applied shading techniques to 3D drawing the molar occlusal surfaces; (2) the study aims to survey learners’ opinions about the method’s effectiveness. Materials and methods: This study was conducted on 118 third-year dental students at the University of Medicine and Pharmacy, Hue University, from March to May 2022. The 3D occlusal surface drawing was developed and applied in teaching, and feedback was received from students. All statistical analysis was analyzed using SPSS version 26.0. Results: Instructions for 3D drawing were detailed and explained step-by-step, from forming to shading the occlusal surfaces. Subsequently, 57.3% - 90.9% of students self-assessed their proficiency in comprehending the characteristics of the occlusal anatomy. 73.3% - 95.8% of students agreed on the utility. 73.1% of students agreed to be willing to apply the 3D drawing method in learning other subjects. Conclusion: Instructions for 3D drawing were built step-by-step, from forming to shading the occlusal surfaces. After completing the course, a high percentage of students agreed on the advantages of this method. Further studies are needed to evaluate the effectiveness of the 3D drawing method in clinical practice

Aims: To isolate and characterize the lactic acid bacteria (LAB) strains from the “mam chua ca ro” (sour fermented fish) in the South of Vietnam and investigate their potential anti-bacterial properties. Methodology and results: Four LAB strains (MCR1, MCR2, MCR3 and MCR4) were isolated from the "mam chua ca ro" product and their anti-bacterial activity was determined using the spot assay and the paper disc diffusion method. The isolated LABs can inhibit Escherichia coli ATCC 25922, Staphyloccocus aureus ATCC 25923 and Vibrio parahaemolyticus BV016 and produce bacteriocin to control the growth of E. coli ATCC 25922 and S. aureus ATCC 25923, except V. parahaemolyticus. MCR2 was chosen to sequence 16S rRNA of Pediococcus acidilactic. Conclusion, significance and impact of study On the basis of their prominent anti-pathogenic bacteria activity, LAB strains isolated from Vietnamese sour-fermented fish products were verified as prospective probiotics.
Lactobacillales--isolation & ; purification ; Pediococcus acidilactici