1.Impact of Superior's Ethical Leadership as Perceived by Nurses on Nursing Performance: Mediating Effect of Faith in Supervisor.
Miyoung KIM ; Hyung Eun SEO ; Eun Young DOO ; Won Jin JU
Journal of Korean Academy of Nursing Administration 2017;23(5):483-493
PURPOSE: The purpose of this study was to elucidate nursing performance to superior's ethical leadership as perceived by nurses and the mediating effect of faith in supervisor. METHODS: For this study a descriptive survey design was used. Participants were 258 nurses who worked in general hospital and completed the self-report questionnaire. Data were collected from May 17 to May 31, 2017 and were analyzed using independent t-test, ANOVA, Scheffé test, and Path analysis with SPSS 22.0 and AMOS 21.0. RESULTS: Superior's ethical leadership as perceived by the nurses and faith in the supervisor were significant variables predicting the level of nursing performance and accounted for 48.1% of the variance. Faith in the supervisor as a mediator was found to have a partial mediating effect. CONCLUSION: In order to improve the nurses' performance, it is important to establish a work environment so that hospital nurses can perform their work with faith in their supervisors, as well as having superiors who are ethical leaders.
Hospitals, General
;
Leadership*
;
Negotiating*
;
Nursing*
;
Nursing, Supervisory
2.Relationship Between Brain-Derived Neurotrophic Factor and Cognitive Function in Methamphetamine-Dependent Patients
Hwallip BAE ; Sung-Doo WON ; Jiyoun KIM ; Hye-Jin SEO ; Changwoo HAN
Psychiatry Investigation 2025;22(3):252-257
Objective:
Methamphetamine (METH) is a neurotoxic substance that can induce neurodegeneration in the human brain. Consequently chronic METH use can affect the cognitive functions in METH-dependent patients. In this study, we aimed to identify the relationship between cognitive function and brain-derived neurotrophic factor (BDNF), which reflects the status of neuroadaptive changes, by characterizing the effects on the cognitive function of METH-dependent patients.
Methods:
A total of 38 METH-dependent patients participated in this study. BDNF levels were measured using the enzyme-linked immunosorbent assay. We also examined the clinical features based on the measurements of the Consortium to Establish a Registry for Alzheimer’s Disease-Korean version (CERAD-K). Finally, the relationships between various parts of CERAD-K and BDNF were compared with one another.
Results:
METH-dependent patients were able to conduct most parts of CERAD-K stably. Among the parts of CERAD-K, only trail-making test part B was correlated with BDNF.
Conclusion
The trail-making test is specific for evaluating executive function; therefore, BDNF may play an essential role in detecting neurocognitive functional decline in METH dependence.
3.Relationship Between Brain-Derived Neurotrophic Factor and Cognitive Function in Methamphetamine-Dependent Patients
Hwallip BAE ; Sung-Doo WON ; Jiyoun KIM ; Hye-Jin SEO ; Changwoo HAN
Psychiatry Investigation 2025;22(3):252-257
Objective:
Methamphetamine (METH) is a neurotoxic substance that can induce neurodegeneration in the human brain. Consequently chronic METH use can affect the cognitive functions in METH-dependent patients. In this study, we aimed to identify the relationship between cognitive function and brain-derived neurotrophic factor (BDNF), which reflects the status of neuroadaptive changes, by characterizing the effects on the cognitive function of METH-dependent patients.
Methods:
A total of 38 METH-dependent patients participated in this study. BDNF levels were measured using the enzyme-linked immunosorbent assay. We also examined the clinical features based on the measurements of the Consortium to Establish a Registry for Alzheimer’s Disease-Korean version (CERAD-K). Finally, the relationships between various parts of CERAD-K and BDNF were compared with one another.
Results:
METH-dependent patients were able to conduct most parts of CERAD-K stably. Among the parts of CERAD-K, only trail-making test part B was correlated with BDNF.
Conclusion
The trail-making test is specific for evaluating executive function; therefore, BDNF may play an essential role in detecting neurocognitive functional decline in METH dependence.
4.Relationship Between Brain-Derived Neurotrophic Factor and Cognitive Function in Methamphetamine-Dependent Patients
Hwallip BAE ; Sung-Doo WON ; Jiyoun KIM ; Hye-Jin SEO ; Changwoo HAN
Psychiatry Investigation 2025;22(3):252-257
Objective:
Methamphetamine (METH) is a neurotoxic substance that can induce neurodegeneration in the human brain. Consequently chronic METH use can affect the cognitive functions in METH-dependent patients. In this study, we aimed to identify the relationship between cognitive function and brain-derived neurotrophic factor (BDNF), which reflects the status of neuroadaptive changes, by characterizing the effects on the cognitive function of METH-dependent patients.
Methods:
A total of 38 METH-dependent patients participated in this study. BDNF levels were measured using the enzyme-linked immunosorbent assay. We also examined the clinical features based on the measurements of the Consortium to Establish a Registry for Alzheimer’s Disease-Korean version (CERAD-K). Finally, the relationships between various parts of CERAD-K and BDNF were compared with one another.
Results:
METH-dependent patients were able to conduct most parts of CERAD-K stably. Among the parts of CERAD-K, only trail-making test part B was correlated with BDNF.
Conclusion
The trail-making test is specific for evaluating executive function; therefore, BDNF may play an essential role in detecting neurocognitive functional decline in METH dependence.
5.Relationship Between Brain-Derived Neurotrophic Factor and Cognitive Function in Methamphetamine-Dependent Patients
Hwallip BAE ; Sung-Doo WON ; Jiyoun KIM ; Hye-Jin SEO ; Changwoo HAN
Psychiatry Investigation 2025;22(3):252-257
Objective:
Methamphetamine (METH) is a neurotoxic substance that can induce neurodegeneration in the human brain. Consequently chronic METH use can affect the cognitive functions in METH-dependent patients. In this study, we aimed to identify the relationship between cognitive function and brain-derived neurotrophic factor (BDNF), which reflects the status of neuroadaptive changes, by characterizing the effects on the cognitive function of METH-dependent patients.
Methods:
A total of 38 METH-dependent patients participated in this study. BDNF levels were measured using the enzyme-linked immunosorbent assay. We also examined the clinical features based on the measurements of the Consortium to Establish a Registry for Alzheimer’s Disease-Korean version (CERAD-K). Finally, the relationships between various parts of CERAD-K and BDNF were compared with one another.
Results:
METH-dependent patients were able to conduct most parts of CERAD-K stably. Among the parts of CERAD-K, only trail-making test part B was correlated with BDNF.
Conclusion
The trail-making test is specific for evaluating executive function; therefore, BDNF may play an essential role in detecting neurocognitive functional decline in METH dependence.
6.Relationship Between Brain-Derived Neurotrophic Factor and Cognitive Function in Methamphetamine-Dependent Patients
Hwallip BAE ; Sung-Doo WON ; Jiyoun KIM ; Hye-Jin SEO ; Changwoo HAN
Psychiatry Investigation 2025;22(3):252-257
Objective:
Methamphetamine (METH) is a neurotoxic substance that can induce neurodegeneration in the human brain. Consequently chronic METH use can affect the cognitive functions in METH-dependent patients. In this study, we aimed to identify the relationship between cognitive function and brain-derived neurotrophic factor (BDNF), which reflects the status of neuroadaptive changes, by characterizing the effects on the cognitive function of METH-dependent patients.
Methods:
A total of 38 METH-dependent patients participated in this study. BDNF levels were measured using the enzyme-linked immunosorbent assay. We also examined the clinical features based on the measurements of the Consortium to Establish a Registry for Alzheimer’s Disease-Korean version (CERAD-K). Finally, the relationships between various parts of CERAD-K and BDNF were compared with one another.
Results:
METH-dependent patients were able to conduct most parts of CERAD-K stably. Among the parts of CERAD-K, only trail-making test part B was correlated with BDNF.
Conclusion
The trail-making test is specific for evaluating executive function; therefore, BDNF may play an essential role in detecting neurocognitive functional decline in METH dependence.
7.A Patient with Thyrotoxic Autoimmune Encephalopathy.
Sang Won SEO ; Byung In LEE ; Jong Doo LEE ; Sun Ah PARK ; Kyu Sik KIM ; Seo Hyun KIM
Journal of the Korean Neurological Association 2001;19(6):665-668
Hashimoto's encephalopathy is a steroid responsive relapsing disorder associated with high titers of thyroid-related autoantibodies that presents with subacute progressive dementia and myoclonus. Although most patients reported have been either euthyroid or hypothyroid at the time of presentation, we present a patient with Hashimoto's encephalopathy with thyrotoxicosis that was successfully managed with steroids and antihyperthyroid therapy. We recommend that encephalopathy presented in patients with hyperthyroidism should be tested with thyroid-related autoantibodies and managed with steroid and antihyperthyroid therapy.
Autoantibodies
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Dementia
;
Humans
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Hyperthyroidism
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Myoclonus
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Steroids
;
Thyrotoxicosis
8.Screening of Genetic Polymorphisms of CYP3A4 and CYP3A5 Genes.
Jin Sol LEE ; Hyun Sub CHEONG ; Lyoung Hyo KIM ; Ji On KIM ; Doo Won SEO ; Young Hoon KIM ; Myeon Woo CHUNG ; Soon Young HAN ; Hyoung Doo SHIN
The Korean Journal of Physiology and Pharmacology 2013;17(6):479-484
Given the CYP3A4 and CYP3A5's impact on the efficacy of drugs, the genetic backgrounds of individuals and populations are regarded as an important factor to be considered in the prescription of personalized medicine. However, genetic studies with Korean population are relatively scarce compared to those with other populations. In this study, we aimed to identify CYP3A4/5 polymorphisms and compare the genotype distributions among five ethnicities. To identify CYP3A4/5 SNPs, we first performed direct sequencing with 288 DNA samples which consisted of 96 Koreans, 48 European-Americans, 48 African-Americans, 48 Han Chinese, and 48 Japanese. The direct sequencing identified 15 novel SNPs, as well as 42 known polymorphisms. We defined the genotype distributions, and compared the allele frequencies among five ethnicities. The results showed that minor allele frequencies of Korean population were similar with those of the Japanese and Han Chinese populations, whereas there were distinct differences from European-Americans or African-Americans. Among the pharmacogenetic markers, frequencies of CYP3A4*1B (rs2740574) and CYP3A5*3C (rs776742) in Asian groups were different from those in other populations. In addition, minor allele frequency of CYP3A4*18 (rs28371759) was the highest in Korean population. Additional in silico analysis predicted that two novel non-synonymous SNPs in CYP3A5 (+27256C>T, P389S and +31546T>G, I488S) could alter protein structure. The frequency distributions of the identified polymorphisms in the present study may contribute to the expansion of pharmacogenetic knowledge.
Asian Continental Ancestry Group
;
Computer Simulation
;
Cytochrome P-450 Enzyme System
;
DNA
;
Gene Frequency
;
Genotype
;
Humans
;
Precision Medicine
;
Mass Screening*
;
Pharmacogenetics
;
Polymorphism, Genetic*
;
Polymorphism, Single Nucleotide
;
Prescriptions
9.Distinct Patterns of Cleavage and Translocation of Cell Cycle Control Proteins in CD95-induced and p53-induced apoptosis.
Weon Seo PARK ; Kyeong Cheon JUNG ; Doo Hyun CHUNG ; Woo Dong NAM ; Won Jin CHOI ; Youngmee BAE
Journal of Korean Medical Science 2003;18(4):467-472
Apoptotic cell death induced by p53 occurs at a late G1 cell cycle checkpoint termed the restriction(R)point, and it has been proposed that p53-induced apoptosis causes upregulation of CD95. However, as cells with defective in CD95 signaling pathway are still sensitive to p53-induced apoptosis, CD95 cannot be the sole factor resulting in apoptosis. In addition, unlike p53-induced apoptosis, the relationship between CD95-mediated apoptosis and the cell cycle is not clearly understood. It would there-fore be worth investigating whether CD95-mediated cell death is pertinent with p53-induced apoptosis in view of cell cycle related molecules. In this report, biochemical analysis showed that etoposide-induced apoptosis caused the induction and the nuclear translocation of effector molecules involved in G1 cell cycle checkpoint. However, there was no such translocation in the case of CD95-mediated death. Thus, although both types of apoptosis involved caspase activation, the cell cycle related proteins responded differently. This argues against the idea that p53-induced apoptosis occurs through the induction of CD95/CD95L expression.
Active Transport, Cell Nucleus
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Antigens, CD95/*metabolism
;
*Apoptosis
;
Cell Cycle
;
Cell Nucleus/metabolism
;
Coculture
;
Dose-Response Relationship, Drug
;
Down-Regulation
;
Etoposide/pharmacology
;
Flow Cytometry
;
Human
;
Immunoblotting
;
Jurkat Cells
;
Nucleic Acid Synthesis Inhibitors/pharmacology
;
Protein Binding
;
Protein Transport
;
Protein p53/*metabolism
;
Signal Transduction
;
Up-Regulation
10.A Case of Leiomyoblastoma of Stomach.
Sang Pal LEE ; Duk Key JANG ; Yong Jun HUR ; Young Ki CHUNG ; Dae Sik WON ; Dong Ryong SEO ; Doo Bok PAK
Korean Journal of Gastrointestinal Endoscopy 1988;8(2):141-144
In 1960 Martin and his associates described another type of tumor of the stomach derived from the smooth muscle, which they named myoid tumor in a study of six patients. In 1962 Stout applied the term "lelomyoblastoma" to this interesting entity in a report of a collected series of 69 patients. Tumor cells are round or polygonal epithelioid cells, which contain perinuclear vacuole or clear zone. A 58 year-old female was admitted to this hospital because of epigastric discomfort for three months. At Upper gastrointestinal series and gastrofiberscope, a round hemispherical submucosal tumor was noted at posterior wall near the lesser curvature of gastric antrum. After subtotal gastrectomy, the submucosal tumor was diagnosed as leiomyoblastoma. Because leiomyoblastoma are rare and easily misdiagnosed as leiomyoma or leiomyosarcoma, careful histologic study is recommended.
Epithelioid Cells
;
Female
;
Gastrectomy
;
Humans
;
Leiomyoma
;
Leiomyoma, Epithelioid*
;
Leiomyosarcoma
;
Middle Aged
;
Muscle, Smooth
;
Pyloric Antrum
;
Stomach*
;
Vacuoles