1.Stress Accelerates Depressive-Like Behavior through Increase of SPNS2 Expression in Tg2576 Mice
Seung Sik YOO ; Yuri KIM ; Dong Won LEE ; Hyeon Joo HAM ; Jung Ho PARK ; In Jun YEO ; Ju Young CHANG ; Jaesuk YUN ; Dong Ju SON ; Sang-Bae HAN ; Jin Tae HONG
Biomolecules & Therapeutics 2025;33(3):417-428
To investigate the relationship between depression and AD, water avoidance stress (WAS) was induced for 10 days in both Tg2576 mice and wild-type (WT) mice. After WAS, memory function and depressive-like behavior were investigated in Tg2576 mice. Tg2576 WAS mice exhibited more depressive-like behaviors than WT WAS and Tg2576 control (CON) mice. Strikingly, Tg2576 CON mice showed more depressive-like behaviors than WT mice. Moreover, corticosterone and phospho-glucocorticoid receptor (p-GR) levels were also higher in Tg2576 WAS mice in comparison to Tg2576 CON mice. Spinster homologue 2 (SPNS2) is a member of non-ATP-dependent transporter. The role of SPNS2 was widely known as a sphingosine-1-phosphate (S1P) transporter, which export intracellular S1P from cells. Using GEO database to analyze SPNS2 gene expression changes in patients with AD and depression, we show that SPNS2 gene expression correlates with AD and depression. Interestingly, Tg2576 WAS mice displayed significantly increased levels of SPNS2 w1hen compared to Tg2576 CON counterparts. SPNS2 levels were also higher in Tg2576 CON mice in comparison with WT CON mice. Remarkably, we found a decrease in S1P brain levels and an increase in S1P serum levels of Tg2576 WAS mice in comparison with Tg2576 CON mice. Accordingly, WAS induced group further decreased S1P levels in the brains. However, the level in the serum further increased in comparison with non-induced group. Therefore, these results suggest that AD and depression could be associated, and that Tg2576 transgenic mice are more susceptible to stress-induced depression through the release of S1P by SPNS2 up-regulation.
2.Stress Accelerates Depressive-Like Behavior through Increase of SPNS2 Expression in Tg2576 Mice
Seung Sik YOO ; Yuri KIM ; Dong Won LEE ; Hyeon Joo HAM ; Jung Ho PARK ; In Jun YEO ; Ju Young CHANG ; Jaesuk YUN ; Dong Ju SON ; Sang-Bae HAN ; Jin Tae HONG
Biomolecules & Therapeutics 2025;33(3):417-428
To investigate the relationship between depression and AD, water avoidance stress (WAS) was induced for 10 days in both Tg2576 mice and wild-type (WT) mice. After WAS, memory function and depressive-like behavior were investigated in Tg2576 mice. Tg2576 WAS mice exhibited more depressive-like behaviors than WT WAS and Tg2576 control (CON) mice. Strikingly, Tg2576 CON mice showed more depressive-like behaviors than WT mice. Moreover, corticosterone and phospho-glucocorticoid receptor (p-GR) levels were also higher in Tg2576 WAS mice in comparison to Tg2576 CON mice. Spinster homologue 2 (SPNS2) is a member of non-ATP-dependent transporter. The role of SPNS2 was widely known as a sphingosine-1-phosphate (S1P) transporter, which export intracellular S1P from cells. Using GEO database to analyze SPNS2 gene expression changes in patients with AD and depression, we show that SPNS2 gene expression correlates with AD and depression. Interestingly, Tg2576 WAS mice displayed significantly increased levels of SPNS2 w1hen compared to Tg2576 CON counterparts. SPNS2 levels were also higher in Tg2576 CON mice in comparison with WT CON mice. Remarkably, we found a decrease in S1P brain levels and an increase in S1P serum levels of Tg2576 WAS mice in comparison with Tg2576 CON mice. Accordingly, WAS induced group further decreased S1P levels in the brains. However, the level in the serum further increased in comparison with non-induced group. Therefore, these results suggest that AD and depression could be associated, and that Tg2576 transgenic mice are more susceptible to stress-induced depression through the release of S1P by SPNS2 up-regulation.
3.Stress Accelerates Depressive-Like Behavior through Increase of SPNS2 Expression in Tg2576 Mice
Seung Sik YOO ; Yuri KIM ; Dong Won LEE ; Hyeon Joo HAM ; Jung Ho PARK ; In Jun YEO ; Ju Young CHANG ; Jaesuk YUN ; Dong Ju SON ; Sang-Bae HAN ; Jin Tae HONG
Biomolecules & Therapeutics 2025;33(3):417-428
To investigate the relationship between depression and AD, water avoidance stress (WAS) was induced for 10 days in both Tg2576 mice and wild-type (WT) mice. After WAS, memory function and depressive-like behavior were investigated in Tg2576 mice. Tg2576 WAS mice exhibited more depressive-like behaviors than WT WAS and Tg2576 control (CON) mice. Strikingly, Tg2576 CON mice showed more depressive-like behaviors than WT mice. Moreover, corticosterone and phospho-glucocorticoid receptor (p-GR) levels were also higher in Tg2576 WAS mice in comparison to Tg2576 CON mice. Spinster homologue 2 (SPNS2) is a member of non-ATP-dependent transporter. The role of SPNS2 was widely known as a sphingosine-1-phosphate (S1P) transporter, which export intracellular S1P from cells. Using GEO database to analyze SPNS2 gene expression changes in patients with AD and depression, we show that SPNS2 gene expression correlates with AD and depression. Interestingly, Tg2576 WAS mice displayed significantly increased levels of SPNS2 w1hen compared to Tg2576 CON counterparts. SPNS2 levels were also higher in Tg2576 CON mice in comparison with WT CON mice. Remarkably, we found a decrease in S1P brain levels and an increase in S1P serum levels of Tg2576 WAS mice in comparison with Tg2576 CON mice. Accordingly, WAS induced group further decreased S1P levels in the brains. However, the level in the serum further increased in comparison with non-induced group. Therefore, these results suggest that AD and depression could be associated, and that Tg2576 transgenic mice are more susceptible to stress-induced depression through the release of S1P by SPNS2 up-regulation.
4.Erratum: Correction of Affiliations in the Article “Establishment of a Nationwide Korean Imaging Cohort of Coronavirus Disease 2019”
Soon Ho YOON ; Soo-Youn HAM ; Bo Da NAM ; Kum Ju CHAE ; Dabee LEE ; Jin Young YOO ; So Hyeon BAK ; Jin Young KIM ; Jin Hwan KIM ; Ki Beom KIM ; Jung Im JUNG ; Jae-Kwang LIM ; Jong Eun LEE ; Myung Jin CHUNG ; Young Kyung LEE ; Young Seon KIM ; Ji Eun JO ; Sang Min LEE ; Woocheol KWON ; Chang Min PARK ; Yun-Hyeon KIM ; Yeon Joo JEONG
Journal of Korean Medical Science 2023;38(34):e298-
5.Fatal Pneumonia Caused by Omicron Subvariant BA.2 of Severe Acute Respiratory Syndrome Coronavirus 2 with the Pulmonary Tuberculosis
Jin-Haeng HEO ; Young-Il PARK ; Young San KO ; Ho Suk SONG ; Suk Hoon HAM ; Hoon KWON ; Joo-Young NA
Korean Journal of Legal Medicine 2022;46(3):79-84
The coronavirus disease 2019 (COVID-19) pandemic resulted from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Variants of SARSCoV-2 have caused distinct COVID-19 surges worldwide. The Omicron variant has replaced other variants as a cause of COVID-19 in the Republic of Korea. Fortunately, COVID-19 patients infected with Omicron have a decreased disease severity. Tuberculosis (TB) remains a major public health threat worldwide, and the incidence of TB is still high in the Republic of Korea. We report the case of a deceased illegal migrant who died at home. An autopsy revealed fatal pneumonia with pulmonary TB caused by the Omicron subvariant BA.2 of SARS-CoV-2. We assumed that a superimposed SARS-CoV-2 infection caused this fatal pneumonia with a previous TB infection. After a comprehensive postmortem (PM) examination, including gross dissection, microscopic studies, PM computed tomography, and PM laboratory tests, the cause of death was determined to be pneumonia, and the death manner was natural. We present this case with a comprehensive PM examination from the perspective of forensic pathology and the public healthcare system.
6.Needles in the Lungs: An Autopsy Case of Pulmonary Ossification in a Putrefied Body
Young-Il PARK ; Jin-Haeng HEO ; Young San KO ; Ho Suk SONG ; Suk Hoon HAM ; Joo-Young NA
Korean Journal of Legal Medicine 2022;46(2):51-54
Forensic autopsy is performed to investigate a death. However, this is difficult in some cases, particularly in putrefied bodies. Pulmonary ossification is a rare pathological process, characterized by progressive and metaplastic ossification, which leads to the formation of small bony fragments in the pulmonary tissue. This condition can develop within the pulmonary tissues that are injured due to various causes. Metastatic and dystrophic calcification occur in normal tissues in conditions of deranged calcium metabolism and dead or degenerative tissue, respectively. Here, we describe the case of a 54-year-old man who lived alone and whose putrefied body was discovered by his landlord. A forensic pathologist identified needle-like sharp materials in both the lower lobes of the lungs during autopsy. Microscopic examination revealed dendriform pulmonary ossification with calcification. After autopsy, his medical history, including chronic kidney disease, was recorded by forensic pathologist. A review of his past medical history and comprehensive postmortem examination findings of the gross dissection, microscopic examination, and postmortem laboratory tests led to the determination of the cause of death as renal problems.
7.Immunological measurement of aspartate/alanine aminotransferase in predicting liver fibrosis and inflammation
Hyun Jeong KIM ; Sang Yeol KIM ; Suk Pyo SHIN ; Young Joo YANG ; Chang Seok BANG ; Gwang Ho BAIK ; Dong Joon KIM ; Young Lim HAM ; Eui Yul CHOI ; Ki Tae SUK
The Korean Journal of Internal Medicine 2020;35(2):320-330
Background/Aims:
Enzymatic analysis of aspartate/alanine aminotransferase (AST/ALT) does not exactly represent the progression of liver fibrosis or inflammation. Immunoassay for AST (cytoplasmic [c] AST/mitochondrial [m] AST) and ALT (ALT1/ALT2) has been suggested as one alternatives for enzymatic analysis. The objective of this study was to evaluate the efficacy of immunoassay in predicting liver fibrosis and inflammation.
Methods:
A total of 219 patients with chronic hepatitis B (CHB) who underwent hepatic venous pressure gradient (HVPG) and liver biopsy before antiviral therapy were recruited. Serum samples were prepared from blood during HVPG. Results of biochemical parameters including enzymatic AST/ALT and immunological assays of cAST, mAST, ALT1, and ALT2 through sandwich enzyme-linked immunosorbent assay (ELISA) immunoassay with fluorescence labeled monoclonal antibodies were compared with the results of METAVIR stage of live fibrosis and the Knodell grade of inflammation.
Results:
METAVIR fibrosis stages were as follows: F0, six (3%); F1, 52 (24%); F2, 88 (40%); F3, 45 (20%); and F4, 28 patients (13%). Mean levels of AST and ALT were 121 ± 157 and 210 ± 279 IU/L, respectively. Mean HVPG score of all patients was 4.7 ± 2.5 mmHg. According to the stage of liver fibrosis, HVPG score (p < 0.001, r = 0.439) and ALT1 level (p < 0.001, r = 0.283) were significantly increased in all samples from patients with CHB. ALT (p < 0.001, r = 0.310), ALT1 (p < 0.001, r = 0.369), and AST (p < 0.001, r = 0.374) levels were positively correlated with Knodell grade of inflammation.
Conclusions
ALT1 measurement by utilizing sandwich ELISA immunoassay can be useful method for predicting inf lammation grade and fibrosis stage in patients with CHB.
8.Establishment of a Nationwide Korean Imaging Cohort of Coronavirus Disease 2019
Soon Ho YOON ; Soo-Youn HAM ; Bo Da NAM ; Kum Ju CHAE ; Dabee LEE ; Jin Young YOO ; So Hyeon BAK ; Jin Young KIM ; Jin Hwan KIM ; Ki Beom KIM ; Jung Im JUNG ; Jae-Kwang LIM ; Jong Eun LEE ; Myung Jin CHUNG ; Young Kyung LEE ; Young Seon KIM ; Ji Eun JO ; Sang Min LEE ; Woocheol KWON ; Chang Min PARK ; Yun-Hyeon KIM ; Yeon Joo JEONG
Journal of Korean Medical Science 2020;35(46):e413-
Background:
The Korean Society of Thoracic Radiology (KSTR) recently constructed a nation-wide coronavirus disease 2019 (COVID-19) database and imaging repository, referred to the Korean imaging cohort of COVID-19 (KICC-19) based on the collaborative efforts of its members. The purpose of this study was to provide a summary of the clinico-epidemiological data and imaging data of the KICC-19.
Methods:
The KSTR members at 17 COVID-19 referral centers retrospectively collected imaging data and clinical information of consecutive patients with reverse transcription polymerase chain reaction-proven COVID-19 in respiratory specimens from February 2020 through May 2020 who underwent diagnostic chest computed tomography (CT) or radiograph in each participating hospital.
Results:
The cohort consisted of 239 men and 283 women (mean age, 52.3 years; age range, 11–97 years). Of the 522 subjects, 201 (38.5%) had an underlying disease. The most common symptoms were fever (n = 292) and cough (n = 245). The 151 patients (28.9%) had lymphocytopenia, 86 had (16.5%) thrombocytopenia, and 227 patients (43.5%) had an elevated CRP at admission. The 121 (23.4%) needed nasal oxygen therapy or mechanical ventilation (n = 38; 7.3%), and 49 patients (9.4%) were admitted to an intensive care unit.Although most patients had cured, 21 patients (4.0%) died. The 465 (89.1%) subjects underwent a low to standard-dose chest CT scan at least once during hospitalization, resulting in a total of 658 CT scans. The 497 subjects (95.2%) underwent chest radiography at least once during hospitalization, which resulted in a total of 1,475 chest radiographs.
Conclusion
The KICC-19 was successfully established and comprised of 658 CT scans and 1,475 chest radiographs of 522 hospitalized Korean COVID-19 patients. The KICC-19 will provide a more comprehensive understanding of the clinical, epidemiological, and radiologic characteristics of patients with COVID-19.
9.The Within-Group Discrimination Ability of the Cancer of the Prostate Risk Assessment Score for Men with Intermediate-Risk Prostate Cancer
Ho Won KANG ; Hae Do JUNG ; Joo Yong LEE ; Jong Kyou KWON ; Seong Uk JEH ; Kang Su CHO ; Won Sik HAM ; Young Deuk CHOI
Journal of Korean Medical Science 2018;33(5):e36-
BACKGROUND: Significant clinical heterogeneity within contemporary risk group is well known, particularly for those with intermediate-risk prostate cancer (IRPCa). Our study aimed to analyze the ability of the Cancer of the Prostate Risk Assessment (CAPRA) score to discern between favorable and non-favorable risk in patients with IRPCa. METHODS: We retrospectively reviewed the data of 203 IRPCa patients who underwent extraperitoneal robot-assisted radical prostatectomy (RARP) performed by a single surgeon. Pathologic favorable IRPCa was defined as a Gleason score ≤ 6 and organ-confined stage at surgical pathology. The CAPRA score was compared with two established criteria for the within-group discrimination ability. RESULTS: Overall, 38 patients (18.7% of the IRPCa cohort) had favorable pathologic features after RARP. The CAPRA score significantly correlated with established criteria I and II and was inversely associated with favorable pathology (all P < 0.001). The area under the receiver operating characteristic curve for the discriminative ability between favorable and non-favorable pathology was 0.679 for the CAPRA score and 0.610 and 0.661 for established criteria I and II, respectively. During a median 37.8 (interquartile range, 24.6–60.2) months of follow-up, 66 patients (32.5%) experienced biochemical recurrence (BCR). Cox regression analysis revealed that the CAPRA score, as a continuous sum score model or 3-group risk model, was an independent predictor of BCR after RARP. CONCLUSION: The within-group discrimination ability of preoperative CAPRA score might help in patient counseling and selecting optimal treatments for those with IRPCa.
Counseling
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Discrimination (Psychology)
;
Follow-Up Studies
;
Goats
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Humans
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Male
;
Neoplasm Grading
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Pathology
;
Pathology, Surgical
;
Population Characteristics
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Prostate
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Prostate-Specific Antigen
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Prostatectomy
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Prostatic Neoplasms
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Recurrence
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Retrospective Studies
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Risk Assessment
;
ROC Curve
10.Phytochemical Constituents from the Rhizomes of Osmunda japonica Thunb and Their Anti-oxidant Activity.
Kyeong Wan WOO ; Ja Kyun JUNG ; Hyun Joo LEE ; Tae Muk KIM ; Min Suk KIM ; Ho Kyung JUNG ; Byeongkwan AN ; Seong Ho HAM ; Byung Hun JEON ; Hyun Woo CHO
Natural Product Sciences 2017;23(3):217-221
Eleven compounds (1–11) were isolated from the rhizomes of Osmunda japonica, and their structures were elucidated based on 1H, 13C-NMR and LC-IT-TOF MS data. Of these compounds, all compounds (1 – 11) have been previously reported, although five (6 – 9, 11) have not previously been isolated from this plant. The antioxidant activities of isolated compounds (1 – 11) were measured by DPPH and ABTS assays, and compound 10 showed the high antioxidant activity.
Plants
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Rhizome*

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