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.Comparison of college students' behavior toward nutrition information communication between Korea and the US
Chang-Sik KIM ; Robert BOSSELMAN ; Hyung-Min CHOI ; Keum Sil LEE ; Eojina KIM ; Hyeyoung MOON ; Yoon Jung JANG ; Sunny HAM
Nutrition Research and Practice 2020;14(4):401-411
BACKGROUND/OBJECTIVES:
The expansion of menu labeling to restaurants has created a need to study customers' behavior toward nutrition information. Therefore, the purpose of this research was to compare college students' behavior toward nutrition information communication between Korea and the US. This study consisted of three objectives: 1) to compare the frequency of usage as well as degree of trust regarding smartphone-based communication channels in the acquisition of nutrition information among college students between Korea and the US, 2) to compare knowledge-sharing behavior related to nutrition information among college students between Korea and the US, and 3) to identify the role of country in the process of knowledge-sharing behavior.
SUBJECTS/METHODS:
A survey was distributed via the web to college students in Korea and the US. Data were collected in the 2nd week of March 2017. Completed responses were collected from 423 Koreans and 280 Americans. Differences between Koreans and Americans were evaluated for statistical significance using a t-test. In order to verify the effects of knowledge self-efficacy and transactive memory capability on knowledge-sharing behavior related to nutrition information, a regression analysis was performed.
RESULTS:
Significant differences were found in the frequency of usage as well as degree of trust in communication channels related to nutrition information between Korean and American college students. While knowledge self-efficacy and tractive memory capability had positive effects on knowledge-sharing behavior related to nutrition information, country had a significant effect on the process.
CONCLUSIONS
This study is the first to compare customer behavior toward nutrition information acquisition and sharing between Korea and the US. Comparative research on nutrition information revealed differences among the different countries. Therefore, this study contributes to the body of knowledge on the nutrition information research, in particular, by providing a comparison study between countries.
5.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
;
Discrimination (Psychology)
;
Follow-Up Studies
;
Goats
;
Humans
;
Male
;
Neoplasm Grading
;
Pathology
;
Pathology, Surgical
;
Population Characteristics
;
Prostate
;
Prostate-Specific Antigen
;
Prostatectomy
;
Prostatic Neoplasms
;
Recurrence
;
Retrospective Studies
;
Risk Assessment
;
ROC Curve
6.Surgical Outcomes of Dacryocystorhinostomy in Lacrimal Drainage Obstruction after Systemic Chemotherapy or Radioactive Iodine Therapy.
Dong Geun KIM ; Jung Jae LEE ; Dong Sik HAM ; Jae Wook YANG
Journal of the Korean Ophthalmological Society 2016;57(11):1684-1690
PURPOSE: To compare the outcomes of endonasal dacryocystorhinostomy in patients with secondary lacrimal drainage obstruction associated with systemic chemotherapy or radioactive iodine therapy. METHODS: We retrospectively reviewed the clinical records of patients diagnosed with secondary lacrimal drainage obstruction after systemic chemotherapy or radioactive iodine therapy for thyroid disease and surgical treatment by endonasal dacryocystorhinostomy between January 2009 and January 2015. The control group included randomly selected patients who underwent endonasal dacryocystorhinostomy after diagnosis of primary lacrimal drainage obstruction. RESULTS: Patients were separated into a chemotherapy group (13 eyes of 9 patients), a radioactive iodine therapy group (44 eyes of 32 patients), and a control group (50 eyes of 40 patients). Duration from the onset of systemic chemotherapy or radioactive iodine to the first epiphora symptom was shorter in the chemotherapy group than the radioactive iodine therapy group (p < 0.001). There was no significant difference between the three groups in success rate of endonasal dacryocystorhinostomy. CONCLUSIONS: Most patients with secondary lacrimal drainage obstruction associated with systemic chemotherapy or radioactive iodine therapy had successful outcome of endonasal dacryocystorhinostomy. The success rate of dacryocystorhinostomy was comparable to that in patients with primary lacrimal drainage obstruction.
Dacryocystorhinostomy*
;
Diagnosis
;
Drainage*
;
Drug Therapy*
;
Humans
;
Iodine*
;
Lacrimal Apparatus Diseases
;
Retrospective Studies
;
Thyroid Diseases
7.Pathologic Outcomes in Men with Low-risk Prostate Cancer Who Are Potential Candidates for Contemporary, Active Surveillance Protocols.
Ho Won KANG ; Joo Yong LEE ; Jong Kyou KWON ; Seong Uk JEH ; Hae Do JUNG ; Kang Su CHO ; Won Sik HAM ; Young Deuk CHOI
Journal of Korean Medical Science 2015;30(7):932-936
The purpose of this study was to determine whether contemporary active surveillance (AS) protocols could sufficiently discriminate significant from indolent tumors in men with low-risk prostate cancer. We retrospectively analyzed 312 patients with low-risk prostate cancer treated with radical prostatectomy. After exclusion of patients with fewer than 10 cores taken at biopsy and those who received neo-adjuvant treatment, 205 subjects satisfied the final inclusion criteria. Five widely accepted AS protocols were employed in this study. A total of 82.0% of the patients met the inclusion criteria of at least one protocol, and 18% did not meet any criteria of published AS protocols. A significant proportion of patients had non-organ-confined disease (8.6% to 10.6%) or a Gleason score of 7 or greater (18.6% to 23.9%) between the different AS criteria. Among patients who did not meet any AS criteria, 32.4% of patients had a pathologically insignificant cancer. Our results indicated a significant adverse pathology in patients who met the contemporary AS protocols. On the other hand, some patients in whom expectant management would be appropriate did not meet any criteria of published AS protocols. None of the clinical or histological criteria reported to date is able to sufficiently discriminate aggressive tumors from indolent ones.
Aged
;
Humans
;
Kallikreins/blood
;
Male
;
Middle Aged
;
Neoplasm Grading
;
Prostate/*pathology
;
Prostate-Specific Antigen/blood
;
Prostatectomy
;
Prostatic Neoplasms/*pathology/surgery
;
Retrospective Studies
;
Risk Assessment
;
Treatment Outcome
;
*Watchful Waiting
8.Reversal of Hypoglycemia Unawareness with a Single-donor, Marginal Dose Allogeneic Islet Transplantation in Korea: A Case Report.
Hae Kyung YANG ; Dong Sik HAM ; Heon Seok PARK ; Marie RHEE ; Young Hye YOU ; Min Jung KIM ; Ji Won KIM ; Seung Hwan LEE ; Tae Ho HONG ; Byung Gil CHOI ; Jae Hyoung CHO ; Kun Ho YOON
Journal of Korean Medical Science 2015;30(7):991-994
Pancreatic islet transplantation is a physiologically advantageous and minimally invasive procedure for the treatment of type 1 diabetes mellitus. Here, we describe the first reported case of successful allogeneic islet transplantation alone, using single-donor, marginal-dose islets in a Korean patient. A 59-yr-old patient with type 1 diabetes mellitus, who suffered from recurrent severe hypoglycemia, received 4,163 islet equivalents/kg from a single brain-death donor. Isolated islets were infused intraportally without any complications. The immunosuppressive regimen was based on the Edmonton protocol, but the maintenance dosage was reduced because of mucositis and leukopenia. Although insulin independence was not achieved, the patient showed stabilized blood glucose concentration, reduced insulin dosage and reversal of hypoglycemic unawareness, even with marginal dose of islets and reduced immunosuppressant. Islet transplantation may successfully improve endogenous insulin production and glycemic stability in subjects with type 1 diabetes mellitus.
Blood Glucose/analysis
;
Diabetes Mellitus, Type 1/*surgery
;
Female
;
Humans
;
Hypoglycemia/*surgery
;
Immunosuppression/methods
;
Immunosuppressive Agents/therapeutic use
;
Islets of Langerhans/physiology/*surgery
;
Islets of Langerhans Transplantation/*methods
;
Middle Aged
;
Republic of Korea
;
Tissue Donors
9.A Study of Psychosocial Stress of Residents Near Asbestos Mines.
Young Sik SHIN ; Yong Jin LEE ; Jung Oh HAM ; Eun Chul JANG ; Chan Ho PARK ; Min Sung KANG ; Seung Kwon PARK
Korean Journal of Occupational and Environmental Medicine 2012;24(4):375-383
OBJECTIVES: The purpose of this study is to identify the level of psychosocial stress of residents near asbestos mines, and to investigate the relationship between psychosocial stress and asbestos exposure history as well as, asbestos exposure awareness. METHODS: The survey was conducted in 297 individuals, by one-on-one interviews with a standard questionnaire including demographic characteristics, health status, asbestos exposure history, and awareness of asbestos exposure. The levels of psychosocial stress were measured through the Psychosocial Wellbeing Index-Short Form(PWI-SF). Multivariate logistic regression was conducted using psychosocial stress as a dependent variable. Demographic characteristics, health status, asbestos exposure history, and asbestos exposure awareness were examined as independent variable. RESULTS: The average PWI-SF score was 17.5 +/- 8.0, with 40 people (13.5%) in the high-risk stress group (PWI-SF 27 points or more). The group having an asbestos-related occupational history had a 2.53 times higher proportion of psychosocial stress (95% CI: 1.03~6.21). The group recognizing asbestos exposure had an even higher proportion of high psychosocial stress group (4.84 times, 95% CI: 1.41~16.55). CONCLUSIONS: The incidence of psychosocial stress is significantly higher in residents near asbestos mines having an asbestos-related occupational history who recognize their frequent asbestos exposure. Therefore, mental health is affected by the awareness of environmental asbestos exposure as well as an occupational exposure to asbestos.
Asbestos
;
Incidence
;
Logistic Models
;
Mental Health
;
Occupational Exposure
;
Questionnaires
10.Segmental bile duct leakage after hepatic resection managed with percutaneous ablation by N-butyl cyanoacrylate.
Hyeon Sik KIM ; Tae Hyo KIM ; Eun Young YUN ; Hyun Seok HAM ; Hong Jun KIM ; Chi Young JEONG ; Hyun Jin KIM ; Woon Tae JUNG ; Ok Jae LEE ; Soon Chan HONG
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2012;16(3):115-119
A biloma is a rare abnormal accumulation of intrahepatic or extrahepatic bile caused by a traumatic or spontaneous rupture of the biliary tree. The reported incidence of postoperative biloma ranges from 4.8% to 7.6%. Biliary drainage is usually important and necessary for the treatment of biloma, but sometimes bile leakage fails to improve despite prolonged conservative drainage. We report a case of postoperative refractory biliary leakage managed with percutaneous ablation by N-butyl cyanoacrylate.
Bile
;
Bile Ducts
;
Biliary Tract
;
Cyanoacrylates
;
Drainage
;
Incidence
;
Rupture, Spontaneous

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