1.Lessons from the 2024–2025 measles outbreak in southern Viet Nam
Thang Nguyen-Tien ; Hoa Minh Tran ; Anh Vu Le
Western Pacific Surveillance and Response 2026;17(2):64-67
Dong Nai province in southern Viet Nam was among the hardest hit in a measles outbreak in 2024–2025 with over 7000 cases. Our analysis outlines major takeaways for measles control in recommending the need for strengthened surveillance, digital communication and intersectoral collaboration to address immunization gaps and build health system resilience in Viet Nam.
2.Loss of Mass and Surface Topography in 3-Dimensional-Printed Solid Titanium Cages Upon Impaction: An In Vitro Model
Tien TRAN ; Ian M SINGLETON ; Victor UNGUREAN JR ; Andrea ROWLAND ; Anna MARTIN ; Oluwatodimu Richard RAJI ; Dimitriy G. KONDRASHOV
Neurospine 2025;22(1):173-184
Objective:
There is increased use of 3-dimensional (3D)-printing for manufacturing of interbody cages to create microscale surface features that promote bone formation. Those features may be vulnerable to abrasion and/or delamination during cage impaction. Our objective was to quantify loss of mass and changes in surface topography of 3D-printed titanium interbody cages due to surgical impaction.
Methods:
Eight surfaces of four 3D-printed titanium modular interbody fusion cages were tested. The cages were impacted into the Sawbones model with compression preload of either 200N or 400N using a guided 1-lb (0.45 kg) drop weight. Mass and surface roughness parameters of each endplate were recorded and compared for differences.
Results:
Significant weight loss was observed for the superior endplate group and for both 200N and 400N preloads. For pooled data comparison, significant postimpaction decreases were observed for mean roughness, root-mean-squared roughness, mean roughness depth, and total height of roughness profile. No significant differences were observed for profile skewness and kurtosis. There were significant changes in almost all roughness parameters in the anterior region of the cage postimpaction with significant changes in 2 out of 6 parameters in the middle, posterior, and central regions postimpaction.
Conclusion
Three-dimensional-printed titanium interbody fusion cages underwent loss of mass and alteration in surface topography during benchtop testing replicating physiologic conditions. There was an endplate- and region-specific postimpaction change in roughness parameters. The anterior surface experienced the largest change in surface parameters postimpaction. Our results have implications for future cage design and pre-approval testing of 3D-printed implants.
3.Loss of Mass and Surface Topography in 3-Dimensional-Printed Solid Titanium Cages Upon Impaction: An In Vitro Model
Tien TRAN ; Ian M SINGLETON ; Victor UNGUREAN JR ; Andrea ROWLAND ; Anna MARTIN ; Oluwatodimu Richard RAJI ; Dimitriy G. KONDRASHOV
Neurospine 2025;22(1):173-184
Objective:
There is increased use of 3-dimensional (3D)-printing for manufacturing of interbody cages to create microscale surface features that promote bone formation. Those features may be vulnerable to abrasion and/or delamination during cage impaction. Our objective was to quantify loss of mass and changes in surface topography of 3D-printed titanium interbody cages due to surgical impaction.
Methods:
Eight surfaces of four 3D-printed titanium modular interbody fusion cages were tested. The cages were impacted into the Sawbones model with compression preload of either 200N or 400N using a guided 1-lb (0.45 kg) drop weight. Mass and surface roughness parameters of each endplate were recorded and compared for differences.
Results:
Significant weight loss was observed for the superior endplate group and for both 200N and 400N preloads. For pooled data comparison, significant postimpaction decreases were observed for mean roughness, root-mean-squared roughness, mean roughness depth, and total height of roughness profile. No significant differences were observed for profile skewness and kurtosis. There were significant changes in almost all roughness parameters in the anterior region of the cage postimpaction with significant changes in 2 out of 6 parameters in the middle, posterior, and central regions postimpaction.
Conclusion
Three-dimensional-printed titanium interbody fusion cages underwent loss of mass and alteration in surface topography during benchtop testing replicating physiologic conditions. There was an endplate- and region-specific postimpaction change in roughness parameters. The anterior surface experienced the largest change in surface parameters postimpaction. Our results have implications for future cage design and pre-approval testing of 3D-printed implants.
4.Loss of Mass and Surface Topography in 3-Dimensional-Printed Solid Titanium Cages Upon Impaction: An In Vitro Model
Tien TRAN ; Ian M SINGLETON ; Victor UNGUREAN JR ; Andrea ROWLAND ; Anna MARTIN ; Oluwatodimu Richard RAJI ; Dimitriy G. KONDRASHOV
Neurospine 2025;22(1):173-184
Objective:
There is increased use of 3-dimensional (3D)-printing for manufacturing of interbody cages to create microscale surface features that promote bone formation. Those features may be vulnerable to abrasion and/or delamination during cage impaction. Our objective was to quantify loss of mass and changes in surface topography of 3D-printed titanium interbody cages due to surgical impaction.
Methods:
Eight surfaces of four 3D-printed titanium modular interbody fusion cages were tested. The cages were impacted into the Sawbones model with compression preload of either 200N or 400N using a guided 1-lb (0.45 kg) drop weight. Mass and surface roughness parameters of each endplate were recorded and compared for differences.
Results:
Significant weight loss was observed for the superior endplate group and for both 200N and 400N preloads. For pooled data comparison, significant postimpaction decreases were observed for mean roughness, root-mean-squared roughness, mean roughness depth, and total height of roughness profile. No significant differences were observed for profile skewness and kurtosis. There were significant changes in almost all roughness parameters in the anterior region of the cage postimpaction with significant changes in 2 out of 6 parameters in the middle, posterior, and central regions postimpaction.
Conclusion
Three-dimensional-printed titanium interbody fusion cages underwent loss of mass and alteration in surface topography during benchtop testing replicating physiologic conditions. There was an endplate- and region-specific postimpaction change in roughness parameters. The anterior surface experienced the largest change in surface parameters postimpaction. Our results have implications for future cage design and pre-approval testing of 3D-printed implants.
5.Loss of Mass and Surface Topography in 3-Dimensional-Printed Solid Titanium Cages Upon Impaction: An In Vitro Model
Tien TRAN ; Ian M SINGLETON ; Victor UNGUREAN JR ; Andrea ROWLAND ; Anna MARTIN ; Oluwatodimu Richard RAJI ; Dimitriy G. KONDRASHOV
Neurospine 2025;22(1):173-184
Objective:
There is increased use of 3-dimensional (3D)-printing for manufacturing of interbody cages to create microscale surface features that promote bone formation. Those features may be vulnerable to abrasion and/or delamination during cage impaction. Our objective was to quantify loss of mass and changes in surface topography of 3D-printed titanium interbody cages due to surgical impaction.
Methods:
Eight surfaces of four 3D-printed titanium modular interbody fusion cages were tested. The cages were impacted into the Sawbones model with compression preload of either 200N or 400N using a guided 1-lb (0.45 kg) drop weight. Mass and surface roughness parameters of each endplate were recorded and compared for differences.
Results:
Significant weight loss was observed for the superior endplate group and for both 200N and 400N preloads. For pooled data comparison, significant postimpaction decreases were observed for mean roughness, root-mean-squared roughness, mean roughness depth, and total height of roughness profile. No significant differences were observed for profile skewness and kurtosis. There were significant changes in almost all roughness parameters in the anterior region of the cage postimpaction with significant changes in 2 out of 6 parameters in the middle, posterior, and central regions postimpaction.
Conclusion
Three-dimensional-printed titanium interbody fusion cages underwent loss of mass and alteration in surface topography during benchtop testing replicating physiologic conditions. There was an endplate- and region-specific postimpaction change in roughness parameters. The anterior surface experienced the largest change in surface parameters postimpaction. Our results have implications for future cage design and pre-approval testing of 3D-printed implants.
6.Loss of Mass and Surface Topography in 3-Dimensional-Printed Solid Titanium Cages Upon Impaction: An In Vitro Model
Tien TRAN ; Ian M SINGLETON ; Victor UNGUREAN JR ; Andrea ROWLAND ; Anna MARTIN ; Oluwatodimu Richard RAJI ; Dimitriy G. KONDRASHOV
Neurospine 2025;22(1):173-184
Objective:
There is increased use of 3-dimensional (3D)-printing for manufacturing of interbody cages to create microscale surface features that promote bone formation. Those features may be vulnerable to abrasion and/or delamination during cage impaction. Our objective was to quantify loss of mass and changes in surface topography of 3D-printed titanium interbody cages due to surgical impaction.
Methods:
Eight surfaces of four 3D-printed titanium modular interbody fusion cages were tested. The cages were impacted into the Sawbones model with compression preload of either 200N or 400N using a guided 1-lb (0.45 kg) drop weight. Mass and surface roughness parameters of each endplate were recorded and compared for differences.
Results:
Significant weight loss was observed for the superior endplate group and for both 200N and 400N preloads. For pooled data comparison, significant postimpaction decreases were observed for mean roughness, root-mean-squared roughness, mean roughness depth, and total height of roughness profile. No significant differences were observed for profile skewness and kurtosis. There were significant changes in almost all roughness parameters in the anterior region of the cage postimpaction with significant changes in 2 out of 6 parameters in the middle, posterior, and central regions postimpaction.
Conclusion
Three-dimensional-printed titanium interbody fusion cages underwent loss of mass and alteration in surface topography during benchtop testing replicating physiologic conditions. There was an endplate- and region-specific postimpaction change in roughness parameters. The anterior surface experienced the largest change in surface parameters postimpaction. Our results have implications for future cage design and pre-approval testing of 3D-printed implants.
7.A multi-omics-empowered framework for precision diagnosis and treatment of lysosomal diseases.
Nguyen Thi Hai YEN ; Nguyen Tran Nam TIEN ; Nguyen Quang THU ; Franklin DUCATEZ ; Wladimir MAUHIN ; Olivier LIDOVE ; Soumeya BEKRI ; Abdellah TEBANI ; Nguyen Phuoc LONG
Journal of Pharmaceutical Analysis 2025;15(10):101274-101274
Lysosomal diseases (LDs) are a group of rare inherited disorders belonging to inborn metabolism errors. LDs are characterized by the excessive storage of undegraded substrates, most often due to the enzymatic deficiency resulting from disease-causing gene variants. LDs lead to dysregulated cellular pathways and imbalanced molecular homeostasis and can affect multiple organs and tissues. Despite being rare, LDs account for a significant incidence when considered collectively. Due to complex molecular and genetic fingerprints, considerable challenges in LD management must be overcome. Diagnosis can be significantly delayed due to the broad and nonspecific clinical manifestations and the lack of specific biomarkers. Available treatments fail to fully stop the disease progression and can alter the disease's typical phenotypes with novel manifestations. Therefore, a paradigm shift is crucial to better understand LDs and provide actionable insights. Herein, we comprehensively review the literature to demonstrate that multi-omics approaches are promising for pathophysiology elucidation, biomarker discovery, and precision therapy in LDs. We recommend adopting longitudinal study designs integrated with a multi-omics-empowered framework to facilitate mechanistic delineation, biomarker discovery, and treatment development. Relevant approaches exploring the association between LDs and common neurodegenerative disorders are also discussed, paving a potential path for improved therapeutic development and ultimately improving the patient's quality of life.
8.Prevalence of Depression, anxiety and stress among the adolescents and associated factors: A Scoping review
Pham Phuong Mai ; Tran Thi Le Hang ; Pham Mai Oanh ; Bui Quang Tien Tien ; Pham Hoang Ha
Vietnam Journal of Public Health 2025;11(1):5-
Background: Depression, anxiety, and stress have become major public health concerns among adolescents, particularly in the aftermath of the COVID-19 pandemic. Understanding their prevalence and determinants is essential to inform prevention and intervention strategies.
Objectives: To describe the prevalence and associated factors of depression, anxiety, and stress among adolescents from 2022 to 2023.
Methods: This is a scoping review. We synthesize scientific studies on depression, anxiety, stress in adolescents aged 10-24 years published in journals from three data bases: PubMed, Cochrane, Embase.
Results: A total of 34 studies on depression, anxiety, and stress in adolescents were included in the review. This scoping review indicates that prevalence of depression ranged from 12.5% to 90.9%, that of anxiety was between 15.2% and 74.7%, and that of stress ranged from 3.2% to 75.3%. The mean age of participants across studies ranged from 14.5 to 21.9 years. Several factors have been identified in different studies as exacerbating these symptoms among adolescents, including age, gender, education related factors, family background, and risk behaviors.
Conclusion: The findings of this review provide valuable insights for parents and health professionals to design effective strategies that mitigate mental health symptoms and foster adolescents’ healthy development.
9.A Surgical Case Report of Parathyroid Lipoadenoma
Ashtyn PHILIPSHECK ; William COBB ; John HOFF ; Tien-Anh TRAN ; Joseph PORTOGHESE
Journal of Endocrine Surgery 2025;25(1):24-29
Parathyroid lipoadenoma is a rare entity with very few cases reported in the literature. It is defined as a benign neoplasm resembling a hamartoma, featuring both chief cells and significant stromal elements, and may be functioning or non-functioning. Typical presenting symptoms are similar to hyperparathyroidism. Here we present a 43-year-old male with multinodular goiter, experiencing worsening dysphagia, that while undergoing total thyroidectomy, was noted to have an abnormal right inferior parathyroid gland. The patient underwent parathyroidectomy in conjunction with thyroidectomy and was incidentally found to have a parathyroid lipoadenoma. Post-operatively his parathyroid hormone decreased, and he reported no symptoms of hypocalcemia. The patient underwent successful removal of a parathyroid lipoadenoma.
10.Impact of long COVID-19 on posttraumatic stress disorderas modified by health literacy: an observational study inVietnam
Han Thi VO ; Tien Duc DAO ; Tuyen Van DUONG ; Tan Thanh NGUYEN ; Binh Nhu DO ; Tinh Xuan DO ; Khue Minh PHAM ; Vinh Hai VU ; Linh Van PHAM ; Lien Thi Hong NGUYEN ; Lan Thi Huong LE ; Hoang Cong NGUYEN ; Nga Hoang DANG ; Trung Huu NGUYEN ; Anh The NGUYEN ; Hoan Van NGUYEN ; Phuoc Ba NGUYEN ; Hoai Thi Thanh NGUYEN ; Thu Thi Minh PHAM ; Thuy Thi LE ; Thao Thi Phuong NGUYEN ; Cuong Quoc TRAN ; Kien Trung NGUYEN
Osong Public Health and Research Perspectives 2024;15(1):33-44
Objectives:
The prevalence of posttraumatic stress disorder (PTSD) has increased, particularly among individuals who have recovered from coronavirus disease 2019 (COVID-19) infection. Health literacy is considered a “social vaccine” that helps people respond effectively to the pandemic. We aimed to investigate the association between long COVID-19 and PTSD, and to examine the modifying role of health literacy in this association.
Methods:
A cross-sectional study was conducted at 18 hospitals and health centers in Vietnamfrom December 2021 to October 2022. We recruited 4,463 individuals who had recovered from COVID-19 infection for at least 4 weeks. Participants provided information about their sociodemographics, clinical parameters, health-related behaviors, health literacy (usingthe 12-item short-form health literacy scale), long COVID-19 symptoms and PTSD (Impact Event Scale-Revised score of 33 or higher). Logistic regression models were used to examine associations and interactions.
Results:
Out of the study sample, 55.9% had long COVID-19 symptoms, and 49.6% had PTSD.Individuals with long COVID-19 symptoms had a higher likelihood of PTSD (odds ratio [OR], 1.86; 95% confidence interval [CI], 1.63–2.12; p < 0.001). Higher health literacy was associated with a lower likelihood of PTSD (OR, 0.98; 95% CI, 0.97–0.99; p = 0.001). Compared to those without long COVID-19 symptoms and the lowest health literacy score, those with long COVID-19 symptoms and a 1-point health literacy increment had a 3% lower likelihood of PTSD (OR, 0.97; 95% CI, 0.96–0.99; p = 0.001).
Conclusion
Health literacy was found to be a protective factor against PTSD and modified the negative impact of long COVID-19 symptoms on PTSD.


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