2.Large-scale salmonella outbreak associated with banh mi, Viet Nam, 2024
Tinh Huu Ho ; Phuong Hoai Hoang ; Lam Vo Thi Ngoc ; Minh Nguyen Dinh ; Dong Do Thanh ; Viet Nguyen Dinh ; O Phan Van ; Phuong Nguyen Thi Lan ; Thanh Nguyen Quoc ; Nhan Ho The ; Nhan Le Dinh Trong ; Chinh Van Dang
Western Pacific Surveillance and Response 2024;15(3):36-42
Objective: To investigate the cause of a foodborne outbreak that occurred in Dong Nai province, Viet Nam, in 2024, and implement control measures.
Methods: An initial investigation was conducted to confirm the outbreak, which was followed by epidemiological and environmental investigations to find the plausible causative food item. Clinical specimens and food samples were tested to identify the pathogen.
Results: A total of 547 symptomatic cases were recorded, of whom two were in severe condition requiring extracorporeal membrane oxygenation and ventilation, one of whom died. Among 99 interviewed cases, the mean incubation time was 9 hours (range 2–24 hours), with the main symptoms being fever, abdominal pain, diarrhoea and vomiting. All patients had eaten banh mi from a local bakery. Salmonella spp. were identified in food samples and clinical specimens. The bakery halted production, and the outbreak ended after 1 week.
Discussion: All the patients were exposed to only one food in common, which facilitated the investigation process. This outbreak is a reminder to small retailers and take-away shops of the importance of food safety management in preventing similar future outbreaks. All food handlers must comply with food hygiene principles, especially in hot temperatures, which boosts bacterial growth.
3.Metformin and statins reduce hepatocellular carcinoma risk in chronic hepatitis C patients with failed antiviral therapy
Pei-Chien TSAI ; Chung-Feng HUANG ; Ming-Lun YEH ; Meng-Hsuan HSIEH ; Hsing-Tao KUO ; Chao-Hung HUNG ; Kuo-Chih TSENG ; Hsueh-Chou LAI ; Cheng-Yuan PENG ; Jing-Houng WANG ; Jyh-Jou CHEN ; Pei-Lun LEE ; Rong-Nan CHIEN ; Chi-Chieh YANG ; Gin-Ho LO ; Jia-Horng KAO ; Chun-Jen LIU ; Chen-Hua LIU ; Sheng-Lei YAN ; Chun-Yen LIN ; Wei-Wen SU ; Cheng-Hsin CHU ; Chih-Jen CHEN ; Shui-Yi TUNG ; Chi‐Ming TAI ; Chih-Wen LIN ; Ching-Chu LO ; Pin-Nan CHENG ; Yen-Cheng CHIU ; Chia-Chi WANG ; Jin-Shiung CHENG ; Wei-Lun TSAI ; Han-Chieh LIN ; Yi-Hsiang HUANG ; Chi-Yi CHEN ; Jee-Fu HUANG ; Chia-Yen DAI ; Wan-Long CHUNG ; Ming-Jong BAIR ; Ming-Lung YU ;
Clinical and Molecular Hepatology 2024;30(3):468-486
Background/Aims:
Chronic hepatitis C (CHC) patients who failed antiviral therapy are at increased risk for hepatocellular carcinoma (HCC). This study assessed the potential role of metformin and statins, medications for diabetes mellitus (DM) and hyperlipidemia (HLP), in reducing HCC risk among these patients.
Methods:
We included CHC patients from the T-COACH study who failed antiviral therapy. We tracked the onset of HCC 1.5 years post-therapy by linking to Taiwan’s cancer registry data from 2003 to 2019. We accounted for death and liver transplantation as competing risks and employed Gray’s cumulative incidence and Cox subdistribution hazards models to analyze HCC development.
Results:
Out of 2,779 patients, 480 (17.3%) developed HCC post-therapy. DM patients not using metformin had a 51% increased risk of HCC compared to non-DM patients, while HLP patients on statins had a 50% reduced risk compared to those without HLP. The 5-year HCC incidence was significantly higher for metformin non-users (16.5%) versus non-DM patients (11.3%; adjusted sub-distribution hazard ratio [aSHR]=1.51; P=0.007) and metformin users (3.1%; aSHR=1.59; P=0.022). Statin use in HLP patients correlated with a lower HCC risk (3.8%) compared to non-HLP patients (12.5%; aSHR=0.50; P<0.001). Notably, the increased HCC risk associated with non-use of metformin was primarily seen in non-cirrhotic patients, whereas statins decreased HCC risk in both cirrhotic and non-cirrhotic patients.
Conclusions
Metformin and statins may have a chemopreventive effect against HCC in CHC patients who failed antiviral therapy. These results support the need for personalized preventive strategies in managing HCC risk.
4.Push forward LC-MS-based therapeutic drug monitoring and pharmacometabolomics for anti-tuberculosis precision dosing and comprehensive clinical management.
Nguyen Quang THU ; Nguyen Tran Nam TIEN ; Nguyen Thi Hai YEN ; Thuc-Huy DUONG ; Nguyen Phuoc LONG ; Huy Truong NGUYEN
Journal of Pharmaceutical Analysis 2024;14(1):16-38
The spread of tuberculosis (TB), especially multidrug-resistant TB and extensively drug-resistant TB, has strongly motivated the research and development of new anti-TB drugs. New strategies to facilitate drug combinations, including pharmacokinetics-guided dose optimization and toxicology studies of first- and second-line anti-TB drugs have also been introduced and recommended. Liquid chromatography-mass spectrometry (LC-MS) has arguably become the gold standard in the analysis of both endo- and exo-genous compounds. This technique has been applied successfully not only for therapeutic drug monitoring (TDM) but also for pharmacometabolomics analysis. TDM improves the effectiveness of treatment, reduces adverse drug reactions, and the likelihood of drug resistance development in TB patients by determining dosage regimens that produce concentrations within the therapeutic target window. Based on TDM, the dose would be optimized individually to achieve favorable outcomes. Pharmacometabolomics is essential in generating and validating hypotheses regarding the metabolism of anti-TB drugs, aiding in the discovery of potential biomarkers for TB diagnostics, treatment monitoring, and outcome evaluation. This article highlighted the current progresses in TDM of anti-TB drugs based on LC-MS bioassay in the last two decades. Besides, we discussed the advantages and disadvantages of this technique in practical use. The pressing need for non-invasive sampling approaches and stability studies of anti-TB drugs was highlighted. Lastly, we provided perspectives on the prospects of combining LC-MS-based TDM and pharmacometabolomics with other advanced strategies (pharmacometrics, drug and vaccine developments, machine learning/artificial intelligence, among others) to encapsulate in an all-inclusive approach to improve treatment outcomes of TB patients.
5.MENTAL HEALTH CARE NEEDS OF STUDENTS AT HO CHI MINH CITY OPEN UNIVERSITY, VIETNAM
Long Nguyen Huu ; Loan Dinh Thi Kim ; Thanh Tra Than
ASEAN Journal of Psychiatry 2024;25(10):1-13
MENTAL HEALTH CARE NEEDS OF STUDENTS AT HO CHI MINH CITY OPEN UNIVERSITY, VIETNAM
Abstract
Objective: Today’s life with changes in many aspects has brought people significant
advantages and conveniences, but at the same time it has also caused physical and
mental consequences for each person, especially mental health problems. Science has
had many studies showing the impact of mental health on the quality of life, work
efficiency, learning outcomes, etc. Therefore, when facing mental health problems,
individuals need help to overcome the psychological problems they are facing to have
healthier and more positive mental health. The scope of this study refers to the need
for mental health care of students at Ho Chi Minh City Open University.
Methodology: This study, based on theories of mental health, models and solutions
to support mental health care, we built a questionnaire with 05 groups of basic needs
to help students improve their physical and mental health for healthy mental health.
Specifically, the care needs for self-satisfaction; The care needs for healthy emotional
expression; the need to care for satisfaction in relationships with others; the full care
needs are able to maintain a stable psychological state in life and the care needs
for improving the ability to cope with difficulties in learning and working. After
completion, we conducted a pilot survey on a small sample to check the reliability of
the questionnaire and calibrate the scale. With an alpha coefficient of 0.98-meaning
that the scale has a high reliability coefficient.
Results: The mean score results show that all 05 groups of needs included in the study
are of interest to the subjects and all have a desire to be met. Specifically: (1) The care
needs for self-satisfaction has an mean score of 3.13 and a standard deviation of 0.73,
a high level of need on the rating scale; care needs for expressing healthy emotions
has an mean score of 3.45 and a standard deviation of 0.58, a very high level of need
on the rating scale; the care needs for satisfaction in relationships with others has
an mean score of 3.34 and a standard deviation of 0.65, a very high level of need on
the rating scale; the full care needs are able to maintain a stable psychological state
in life has an mean score of 4.42 and a standard deviation of 0.60, a very high need
level in the assessment scale and the care needs for improving the ability to cope
with difficulties in learning and working has an mean score of 3.19 and a standard
deviation of 0.74, a high need level in the assessment scale.
Conclusion: The research results show that students of Ho Chi Minh City Open
University have a very high level of mental health care needs. Students clearly show
mental health care needs in all the contents that need to be cared for. Among the
component needs of mental health care needs, the need that students pay more
attention than the remaining needs is the full care needs are able to maintain a stable
psychological state in life. The need that students care less about than the remaining
needs is the care needs for self-satisfaction. ASEAN Journal of Psychiatry, Vol. 25 (10)
December, 2024; 1-13.
6.The Role of Loneliness and Self-Control to the Association between Nomophobia and Depression Symptoms among Vietnamese High School Students
Be Thi Ngoc Nguyen ; Ngoc Phuong Hong Nguyen ; Long Minh Dau ; Quynh-Anh Ngoc Nguyen ; Uyen Thi Thanh Le
ASEAN Journal of Psychiatry 2023;24(no. 5):1-11
Numerous studies have also revealed that students with a high level of Nomophobia have an increased risk of depression. However, few researchers are interested in examining how the association between nomophobia and depressive symptoms mediates loneliness and self-control. This study aimed to investigate, among Vietnamese High School Students, the association between nomophobia and depressive symptoms, specifically focusing on the role that loneliness and self-control play as potential mediators of that relationship. The Nomophobia Scale (NMP-Q), Depression Anxiety Stress Scale 21 (DASS-21), The UCLA loneliness scale version 3 (UCLA III), and The Brief Self-Control Scale (BSCS) were completed by 556 Vietnamese high school students. Using the PROCESS macro, mediation analyses were conducted to investigate the relationship between variables. According to our findings, nomophobia was positively associated with symptoms of depression, and loneliness and self-control partially mediated this relationship. It is suggested that methods for preventing claustrophobia and depressive symptoms be taken seriously in order to increase self-control and decrease loneliness.
7.Clinics in diagnostic imaging (214).
Singapore medical journal 2022;63(9):527-534
8.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.
9.Environmental sampling for SARS-CoV-2 at a reference laboratory and provincial hospital in central Viet Nam, 2020
Thá ; i Hù ; ng Đỗ ; Văn Thà ; nh Nguyễn ; Thế Hù ; ng Đinh ; Xuâ ; n Huy Lê ; ; Quang Chiê ; u Nguyễn ; Văn Quâ ; n Lê ; ; Bảo Triệu Nguyễn ; Ngọc Bí ; ch Ngâ ; n Nguyễn ; Thị Ngọc Phú ; c Nguyễn ; Kim Mai Huỳnh ; Hoà ; ng Long Trịnh ; Thị Kim Trang Lê ; ; Thù ; y Dung Diệp ; Thủy Thị Thu Đỗ ; Hiền Thị Thu Bù ; i ; Alyssa M Finlay ; Quốc Việt Nguyễn ; Philip L Gould
Western Pacific Surveillance and Response 2021;12(3):47-55
Objective: To determine whether environmental surface contamination with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occurred at a provincial hospital in Viet Nam that admitted patients with novel coronavirus disease 2019 (COVID-19) and at the regional reference laboratory responsible for confirmatory testing for SARS-CoV-2 in 2020.
Methods: Environmental samples were collected from patient and staff areas at the hospital and various operational and staff areas at the laboratory. Specimens from frequently touched surfaces in all rooms were collected using a moistened swab rubbed over a 25 cm2 area for each surface. The swabs were immediately transported to the laboratory for testing by real-time reverse transcription polymerase chain reaction (RT-PCR). Throat specimens were collected from staff at both locations and were also tested for SARS-CoV-2 using real-time RT-PCR.
Results: During the sampling period, the laboratory tested 6607 respiratory specimens for SARS-CoV-2 from patients within the region, and the hospital admitted 9 COVID-19 cases. Regular cleaning was conducted at both sites in accordance with infection prevention and control (IPC) practices. All 750 environmental samples (300 laboratory and 450 hospital) and 30 staff specimens were negative for SARS-CoV-2.
Discussion: IPC measures at the facilities may have contributed to the negative results from the environmental samples. Other possible explanations include sampling late in a patient’s hospital stay when virus load was lower, having insufficient contact time with a surface or using insufficiently moist collection swabs. Further environmental sampling studies of SARS-CoV-2 should consider including testing for the environmental presence of viruses within laboratory settings, targeting the collection of samples to early in the course of a patient’s illness and including sampling of confirmed positive control surfaces, while maintaining appropriate biosafety measures.
10.Clinics in diagnostic imaging (202). Osgood-Schlatter disease (OSD).
Jeremy Jia Hong LAM ; Sandeep Halagatti VENKATESH ; Chi Long HO ; Bak Siew Steven WONG
Singapore medical journal 2019;60(12):610-615
A 14-year-old boy presented with left anterior knee pain, which was aggravated by exercise and relieved by rest. On clinical examination, there was tenderness at the tibial tuberosity with reproducible pain on resisted active extension of the knee. Radiographs showed heterotopic ossification of the patellar tendon with irregularity and fragmentation of the tibial tubercle. Clinical and radiological findings were consistent with Osgood-Schlatter disease, which is a traction apophysitis of the tibial tubercle commonly occurring in adolescents. The clinical presentation and imaging features are discussed.


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