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Objective@#The purpose of this study was to identify factors associated with twin pregnancy following day 3 double embryo transfer (DET). @*Methods@#This retrospective cohort study incorporated data from 16,972 day 3 DET cycles. The participants were women aged between 18 and 45 years who underwent in vitro fertilization with intracytoplasmic sperm injection (IVF/ICSI) at My Duc Assisted Reproduction Technique Unit (IVFMD), My Duc Hospital, located in Ho Chi Minh City, Vietnam. @*Results@#Of the 16,972 day 3 DET cycles investigated, 8,812 (51.9%) resulted in pregnancy. Of these, 6,108 cycles led to clinical pregnancy, with 1,543 (25.3% of clinical pregnancies) being twin pregnancies. Factors associated with twin pregnancy included age under 35 years (odds ratio [OR], 1.5; 95% confidence interval [CI], 1.32 to 1.71; p<0.001) and cycles involving the transfer of at least one grade I embryo. Relative to the transfer of two grade III embryos, the risk of twin pregnancy was significantly elevated following the transfer of two grade I embryos (OR, 1.40; 95% CI, 1.16 to 1.69; p<0.001) or a combination of one grade I and one grade II embryo (OR, 1.27; 95% CI, 1.05 to 1.55; p=0.001). @*Conclusion@#By analyzing a large number of IVF/ICSI cycles, we identified several predictors of twin pregnancy. These findings can assist medical professionals in tailoring treatment strategies for couples with infertility.
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Background@#Viet Nam confirmed its first case of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on 23 January 2020 among travellers from Wuhan, China, and experienced several clusters of community transmission until September. Viet Nam implemented an aggressive testing, isolation, contact tracing and quarantine strategy in response to all laboratory-confirmed cases. We report the results of SARS-CoV-2 testing during the first half of 2020 in northern Viet Nam.@*Methods@#Between January and May 2020, 15 650 upper respiratory tract specimens were collected from 14 470 suspected cases and contacts in northern Viet Nam. All were tested for SARS-CoV-2 by real-time RT-PCR. Individuals with positive specimens were tested every three days until two tests were negative. Positive specimens from 81 individuals were cultured.@*Results@#Among 14 470 tested individuals, 158 (1.1%) cases of SARS-CoV-2 infection were confirmed; 89 were imported and 69 were associated with community transmission. Most patients (122, 77%) had negative results after two tests, while 11 and 4 still tested positive when sampled a third and fourth time, respectively. SARS-CoV-2 was isolated from 29 of 81 specimens (36%) with a cycle threshold (Ct) value <30. Seven patients who tested positive again after testing negative had Ct values >30 and negative cultures.@*Conclusion@#Early, widespread testing for SARS-CoV-2 in northern Viet Nam identified very few cases, which, when combined with other aggressive strategies, may have dramatically contained the epidemic. We observed rapid viral clearance and very few positive results after clearance. Large-scale molecular diagnostic testing is a critical part of early detection and containment of COVID-19 in Viet Nam and will remain necessary until vaccination is widely implemented.
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OBJECTIVE Currently discussing the clinical treatment of pulmonary fibrosis commonly used drugs astragalus main active ingredient astragalosideⅣ(ASTⅣ)in vitro after transforming growth factor-β1 induced lung adenocarcinoma A549 epithelial cells after epithelial cell interstitial Epithelial-Mesenchymal Transition(EMT). METHODS The effect of astragalosideIV on the proliferation of A549 cells was detected by MTT assay for the first time.No significant effect of astragaloside on the prolifera-tion of A549 cells was found in the range of 1.25-20 μmol/L. A549 cells in vitro were divided into 5 groups: normal group, control group, low, medium and high experimental groups, which were treated for 72 hours,and the morphological changes of cells in each group were observed by light microscope. Real-time quantitative PCR (qPCR) and Western blotting were performed. Detection of gene and protein expression levels. RESULTS The results of real-time fluorescence quantitative PCR showed that the quantitative analysis of high-dose astragalosideⅣin the experimental group was lower than that of the control group in the α-SMA analysis,and the difference was statistically significant(P<0.05).The dose of AstragalosideⅣ in the experimental group was higher than that of the control group in the E-Cad analysis,and the difference was statistically significant(P<0.05).Western Blot results showed that the expression of α-SMA antibody in the high-dose and low-dose experimental group was lower than that in the control group, the difference was statistically significant (P<0.05). The high-dose experimental group had a significantly higher expression of E-Cad antibody than the control group, the difference was statistically significant (P<0.01). CONCLUSION This study uses A549 epithelial cells as a model, A549 cells were modeled and confirmed that Astragaloside can effectively inhibit TGF-β1-induced epithelial-mesenchymal transition(EMT)and provide a new basis for the treatment of pulmonary fibrosis.
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OBJECTIVE@#To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak.@*METHODS@#Throat swabs were collected from 54 pediatric patients with confirmed measles, and molecular diagnostics performed for 10 additional viral respiratory pathogens (Influenza A/H1N1pdm09; A/H3N2 and influenza B; Parainfluenza 1, 2, 3; Respiratory Synctial Virus, RSV; human Metapneumovirus, hMPV; Adenovirus and Picornavirus).@*RESULTS@#Twenty-one cases (38.9%) showed evidence of infection with other respiratory viruses: 15 samples contained measles plus one additional virus, and 6 samples contained measles plus 2 additional viruses. Adenovirus was detected as a predominant cause of co-infections (13 cases; 24.1%), followed by RSV (6 cases; 11.1%), A/H1N1pdm09 (3 cases; 5.6%), PIV3 (3 cases; 3.7%), Rhinovirus (3 cases; 3.7%) and hMPV (1 case; 1.96%).@*CONCLUSIONS@#Viral co-infections identified from pediatric measles cases may have contributed to increased disease severity and high rate of fatal outcomes. Optimal treatment of measles cases may require control of multiple viral respiratory pathogens.
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Objective To characterize viral co-infections among representative hospitalized measles cases during the 2014 Hanoi outbreak. Methods Throat swabs were collected from 54 pediatric patients with confirmed measles, and molecular diagnostics performed for 10 additional viral respiratory pathogens (Influenza A/H1N1pdm09; A/H3N2 and influenza B; Parainfluenza 1, 2, 3; Respiratory Synctial Virus, RSV; human Metapneumovirus, hMPV; Adenovirus and Picornavirus). Results Twenty-one cases (38.9%) showed evidence of infection with other respiratory viruses: 15 samples contained measles plus one additional virus, and 6 samples contained measles plus 2 additional viruses. Adenovirus was detected as a predominant cause of co-infections (13 cases; 24.1%), followed by RSV (6 cases; 11.1%), A/H1N1pdm09 (3 cases; 5.6%), PIV3 (3 cases; 3.7%), Rhinovirus (3 cases; 3.7%) and hMPV (1 case; 1.96%). Conclusions Viral co-infections identified from pediatric measles cases may have contributed to increased disease severity and high rate of fatal outcomes. Optimal treatment of measles cases may require control of multiple viral respiratory pathogens.
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Background: Idiopathic or Immune Thrombocytopenic Pupura (ITP) is a common disease in Vietnamese children. This is a hemostatic disorder disease diagnosed by clinical symptoms combining with tests of platelet quantity in peripheral blood and other tests. Objectives: to study epidemiology, clinical, para-clinical characteristics and their relations in ITP disease. Subjects and methods: This was a prospective and retrospective study. The study included 579 pediatric patients from 3 months to 16 ages who were diagnosed and treated ITP disease in National Pediatric Hospital from 1/1/2003 to 12/31/2004. Results: Data were analyzed, including 191 infants from >3-<12 months (33.0%), 293 children from 1 - 10 ages (50.6%), 95 children >10-<16 ages (16.4%). The male/female ratio was highest in infants and decreased with age (P < 0.001). The disease occurred more in September, October and November with advantage factor being acute respiratory infection before 2 to 3 weeks. Subcutaneous hemorrhage ratio was highest with 557 cases (96.2%), intracranial hemorrhage happened in 7 cases (1.7%). There were differences among age groups about hemorrhage situation. Anemia level did not corresponding with the decrease of the platelet count. Conclusion: Characteristics of ITP depend on the number of platelet and age. \r\n', u'\r\n', u'\r\n', u'
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Background: Auricular pressure method is a non-medication method which has been applied for a long time. This method significantly improved the clinical symptoms in premenopausal women. Objectives: to evaluate the effects of auricular pressure method on some hemological and endocrinal indices of the patients with pre-menopausal syndrome. Subjects and methods: 30 patients with menopausal syndrome aged 40- 55 were treated by applying continuously auricular method on Shen men, endocrine, sympathetic nerve points for 30 days. An open-clinical trial was conducted with a comparison of the results before and after treatment. Results: After 30 days of treatment there were no change in hemological indices while serum Estradiol concentration increased to 199,33 \xb1 299,83pnol/l and FSH decreased to 16,33 \xb1 108,70 UL/I compared with those before treatment.The increased levels of estrogen explained partly the improvement of clinical symptoms after treatment. Number of erythrocyte, leukocyte, platelet, haemoglobin, hematocrit did not change. Conclusions: Auricular pressure method produced an influence on the levels of serum Estradiol and FSH. However, it caused no effects on hemological indices in the patients with menopausal syndrome. \r\n', u'\r\n', u'\r\n', u'