1.Revolutionizing Laboratory Practices: Pioneering Trends in Total Laboratory Automation
Annals of Laboratory Medicine 2025;45(5):472-483
Total laboratory automation (TLA) is a transformative solution in clinical laboratories that addresses growing demands for operational efficiency, accuracy, and rapid turnaround times in patient care. TLA integrates advanced technologies across pre-analytical, analytical, and post-analytical phases, thereby streamlining workflows, reducing manual intervention, and enhancing QC. TLA adoption is driven by factors such as increasing test volumes, the need for cost reduction and regulatory compliance, and labor shortages. Key benefits of TLA include improved accuracy through error minimization, optimized resource utilization, enhanced staff well-being, and consistent delivery of high-quality results. Leading companies, including Abbott, Roche, Siemens, and Beckman Coulter, dominate the global TLA market with innovative solutions. Recent developments incorporate artificial intelligence (AI), machine learning, robotics, and Internet-of-things technologies, which enable predictive analytics and automated data management. However, challenges remain, including high implementation costs, the need for workforce training, cybersecurity concerns, and system integration complexities. Future trends indicate that TLA will advance through enhanced AI integration, sustainable practices, and big data analytics, fostering continuous improvements in precision diagnostics and clinical outcomes. Moreover, TLA has the potential to revolutionize laboratory operations globally, driving efficiency, accuracy, and sustainability while ultimately improving patient care. Successful adoption of TLA will require strategic planning, interdisciplinary collaboration, and alignment with emerging healthcare needs. In this review, we emphasize that overcoming these challenges through innovation and robust management is essential for ensuring that TLA continues to play a vital role in modern healthcare systems.
2.Living versus deceased donor liver transplantation in highly urgent patients using Korean national data
Jongman KIM ; Sang Jin KIM ; Kyunga KIM ; YoungRok CHOI ; Geun HONG ; Jun Yong PARK ; Young Seok HAN ; Nam-Joon YI ; Soon-Young KIM ; Jung-Bun PARK ; Youngwon HWANG ; Dong-Hwan JUNG
Annals of Liver Transplantation 2025;5(2):115-123
Background:
Deceased donor liver transplantation (DDLT) and living donor liver transplantation (LDLT) are employed to address highly urgent patients, including those with acute liver failure (ALF), acute-on-chronic liver failure (ACLF), or critical cirrhosis. This study compares outcomes between LDLT and DDLT patients with ALF, ACLF, or critical cirrhosis in highly urgent LDLT (HU-LDLT) applications.
Methods:
This study conducted a retrospective analysis of the Korean Network for Organ Sharing (KONOS) data, which included 391 consecutive HU-LDLT applications from 2017 to 2021.
Results:
The proportion of DDLT was 15.1% (n=59) within the cohort of HU-LDLT applications. The prevalence of hepatorenal syndrome, duration of pre-transplant intensive care unit (ICU) care, incidence of pre-transplant continuous renal replacement therapy, and median model for end-stage liver disease scores were significantly greater and prolonged in DDLT patients compared to LDLT patients. Statistical analysis revealed no significant differences in postoperative complications or overall survival between the two groups. In the multivariate analysis, only pre-transplant ventilator care emerged as a significant predisposing factor for mortality.
Conclusion
The present study indicates that LDLT is a viable option, yielding comparable perioperative and long-term outcomes to DDLT for HU patients, which can encourage living liver donation to overcome organ shortages in HU patients.
3.A study on the relationship between purchases of meal kits and home meal replacements
Jong-Youn RHA ; Haerang LEE ; Sohyun KIM ; Youngwon NAM
Nutrition Research and Practice 2024;18(3):425-435
BACKGROUND/OBJECTIVES:
Meal kits and home meal replacements (HMRs) are rapidly growing segments in the convenience food industry. Consequently, numerous studies have examined consumer perceptions of HMR and meal kits, respectively. HMR is an established segment, while meal kits are a recent category. Both segments offer convenience compared to home-cooked meals. However, meal kits offer a wider variety of recipes with fresh ingredients, requiring simple cooking steps to prepare the meal rather than merely heating the food. Despite the commonalities and differences, previous studies have only examined the purchasing behavior and influencing factors of either the meal kits or HMR.However, changes in the purchasing patterns of both segments may be correlated. This study investigates the relationship between consumer purchasing trends of meal kits and HMR and presents practical recommendations regarding the need of consumers for convenience foods.MATERIALS/METHODS: We conducted a panel regression analysis of consumer purchase data obtained from shopping receipts, spanning the 2019, 2020, and 2021 waves of the Korean Rural Development Administration.
RESULTS:
The results show that the purchases of meal kits and HMR increased during the period, suggesting a complementary relationship between the 2. We also found significant increases in purchases within 2 sub-categories of HMR, namely, ready-to-prepare and readyto-cook, alongside meal kits. These findings were further supported by the results of the sub-regression analysis.
CONCLUSION
The simultaneous growth of meal kits and HMR indicates that convenience foods continue to play a crucial role in meeting consumer needs in the food industry.In addition, considering the significant growth of the HMR sub-categories with fresh ingredients and cooking, we suggest that companies should aim to satisfy the desire of consumers for both convenience as well as freshness and culinary aspects.
4.Korean consumers’ use and concerns about food delivery service
Jong-Youn RHA ; Youngwon NAM ; Jihyun YOON ; Bohan LEE
Nutrition Research and Practice 2023;17(3):583-596
BACKGROUND/OBJECTIVES:
Despite the rapid growth of the online food delivery service market since the outbreak of coronavirus disease 2019, little research has focused on how consumers are using food delivery service and what they are concerned about when using food delivery service. Moreover, previous studies have not paid adequate attention to how these concerns are related to consumers’ intention to use food delivery service. Therefore, our study examines behaviors and concerns regarding food delivery service and identifies the key factors in consumers’ intention to use food delivery service.
SUBJECTS/METHODS:
Using data collected from 549 Korean consumers, we conducted descriptive analysis, exploratory factor analysis, and multiple regressions.
RESULTS:
We found that using food delivery service is not only for main meals at home or the office but also to meet a variety of dietary needs and occasions. The findings indicated that Korean consumers are most concerned about the sustainability of food delivery service, followed by health, hygiene, hedonic, and usability aspects of the service. Hygiene concerns and a hedonic aspect of the service were negatively associated with consumers’ intention to use food delivery service among users, while health concerns decreased the intention of non-users.
CONCLUSION
The findings have implications for practitioners and policy makers in food delivery service. To further propel market growth, they should help reduce health concerns of non-users, as well as hygiene and hedonic concerns of existing users.
5.Korean clinical practice guidelines for the diagnosis of hereditary hemolytic anemia
Hee Won CHUEH ; Sang Mee HWANG ; Ye Jee SHIM ; Jae Min LEE ; Hee Sue PARK ; Joon Hee LEE ; Youngwon NAM ; Namhee KIM ; Hye Lim JUNG ; Hyoung Soo CHOI ;
Blood Research 2022;57(2):86-94
Although the prevalence of hereditary hemolytic anemia (HHA) is relatively low in Korea, it has been gradually increasing in recent decades due to increment in the proportions of hemoglobinopathies from immigrants of South East Asia, raising awareness of the disease among clinicians, and advances in diagnostic technology. As such, the red blood cell (RBC) Disorder Working Party (WP), previously called HHA WP, of the Korean Society of Hematology (KSH) developed the Korean Standard Operating Procedures (SOPs) for the diagnosis of HHA in 2007. These SOPs have been continuously revised and updated following advances in diagnostic technology [e.g., flow cytometric osmotic fragility test (FOFT) and eosin-5-maleimide (EMA) binding test], current methods for membrane protein or enzyme analysis [e.g., liquid chromatography-tandem mass spectrometry (LC-MS/MS), ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), high-performance liquid chromatography (HPLC)], and molecular genetic tests using next-generation sequencing (NGS). However, the diagnosis and treatment of HHA remain challenging as they require considerable experience and understanding of the disease. Therefore, in this new Korean Clinical Practice Guidelines for the Diagnosis of HHA, on behalf of the RBC Disorder WP of KSH, updated guidelines to approach patients suspected of HHA are summarized. NGS is proposed to perform prior to membrane protein or enzyme analysis by LC-MS/MS, UPLC-MS/MS or HPLC techniques due to the availability of gene testing in more laboratories in Korea. We hope that this guideline will be helpful for clinicians in making diagnostic decisions for patients with HHA in Korea.
6.Diagnostic imaging features of calyceal diverticulum in a cat
Yunjeong NAM ; Youngwon LEE ; Hojung CHOI
Korean Journal of Veterinary Research 2021;61(2):e17-
A seven-year-old, castrated male, Korean domestic shorthair cat was referred because of a kidney abnormality. Radiography revealed left renal agenesis and right kidney enlargement. Ultrasonography and computed tomography (CT) showed amorphous calcified materials in a cyst-like lesion of the right kidney. In the excretory phase of the CT images, the lesion was opacified with contrast material, indicating communication with the collecting system. Based on these findings, the cat was diagnosed with a calyceal diverticulum. A calyceal diverticulum may cause various clinical symptoms related to the urinary system. The excretory phase of CT is useful for diagnosing a calyceal diverticulum.
7.Diagnostic imaging features of calyceal diverticulum in a cat
Yunjeong NAM ; Youngwon LEE ; Hojung CHOI
Korean Journal of Veterinary Research 2021;61(2):e17-
A seven-year-old, castrated male, Korean domestic shorthair cat was referred because of a kidney abnormality. Radiography revealed left renal agenesis and right kidney enlargement. Ultrasonography and computed tomography (CT) showed amorphous calcified materials in a cyst-like lesion of the right kidney. In the excretory phase of the CT images, the lesion was opacified with contrast material, indicating communication with the collecting system. Based on these findings, the cat was diagnosed with a calyceal diverticulum. A calyceal diverticulum may cause various clinical symptoms related to the urinary system. The excretory phase of CT is useful for diagnosing a calyceal diverticulum.
8.COVID-19 and changes in Korean consumers' dietary attitudes and behaviors
Jong-Youn RHA ; Bohan LEE ; Youngwon NAM ; Jihyun YOON
Nutrition Research and Practice 2021;15(S1):S94-109
BACKGROUND/OBJECTIVES:
The coronavirus disease 2019 (COVID-19) outbreak has dramatically changed nearly every aspect of our lives. Although Dietary lifestyle includes attitudes and behaviors to meet their most basic needs, but few studies have examined the pattern of changes in dietary lifestyle driven by COVID-19. This study explores changes in dietary attitudes and behaviors among Korean consumers after COVID-19.
SUBJECTS/METHODS:
An online survey was conducted with 549 Korean adults aged 20 and older to identify general demographics and changes in dietary attitudes and behaviors. Data were collected from Oct 12 to Oct 18, 2020. Frequency, percentage, and mean values were calculated and a K-means cluster analysis was performed to categorize consumers based on the 5S of dietary attitudes (i.e., savor-oriented, safety-oriented, sustainability-oriented, saving-oriented, and socializing-oriented).
RESULTS:
Findings indicate consumers considered safety, health, and freshness to be most important when choosing groceries and prepared meal such as home meal replacement and delivery food. Among the types of services, a large proportion of consumers increased their delivery and take-out services. Regarding retail channels, the increase in the use of online retailers was remarkable compared to offline retailers. Finally, consumers were classified into four segments based on changes in dietary attitudes: “most influenced,” “seeking safety and sustainability,” “abstaining from savor and socializing,” and “least influenced.” Each type of consumer exhibited statistically significant differences by sex, age, household composition, presence of disease, and perceived risk of COVID-19.
CONCLUSIONS
This exploratory study provides initial insights for future research by identifying various aspects of dietary attitudes and behaviors among Korean consumers after COVID-19.
9.Evaluation of the Urinary Glucose Tetrasaccharide Assay Using Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry for Diagnosis of Pompe Disease.
Youngwon NAM ; Kyunghoon LEE ; Sun Hee JUN ; Kyung Un PARK ; Sang Hoon SONG ; Hyung Doo PARK ; Junghan SONG
Laboratory Medicine Online 2015;5(4):211-214
We evaluated the urinary glucose tetrasaccharide (Glc4) assay using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The calibration curve was linear over a range of 5-500 micromol/L. Performance parameters such as intra- and inter-day imprecision CVs were 6.52-14.6% and 11.5-13.2%, respectively. The mean concentrations of urinary Glc4 in 27 normal controls and 3 pseudodeficiency patients were 1.5 and 12.1 mmol/mol creatinine, respectively. Urinary Glc4 concentration in a patient with Pompe disease was 171.3 mmol/mol creatinine, which decreased to 130.9 mmol/mol following enzyme replacement therapy. Based on our results, we suggest that the urinary Glc4 assay using UPLC-MS/MS can be a reliable diagnostic tool for identification of patients with Pompe disease.
Calibration
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Creatinine
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Diagnosis*
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Enzyme Replacement Therapy
;
Glucose*
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Glycogen Storage Disease Type II*
;
Humans
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Mass Spectrometry*

Result Analysis
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