1.Leiomyosarcoma of the Prostate.
Soon Saeng KWON ; Jee Hyun KIM ; Joo Seob KEUM ; Heung Jae PARK ; Chi Hun KWON
Korean Journal of Urology 1997;38(4):437-440
Leiomyosarcoma of the prostate is a rare malignant tumor. It originates from the smooth muscles of the prostatic gland and is usually found during old ages. Prognosis is usually poor especially in childhood. We report a case of leiomyosarcoma of the prostate measured 320gm in 64 years old man.
Humans
;
Leiomyosarcoma*
;
Middle Aged
;
Muscle, Smooth
;
Prognosis
;
Prostate*
2.Cavernous Hemangioma of the Uterus in a Postmenopausal Woman: A Case Report.
Hye Ra JUNG ; Chi Hum CHO ; Sang Hun KWON ; Sun Young KWON
Korean Journal of Pathology 2011;45(5):520-522
Cavernous hemangioma of the uterus is an uncommon mesenchymal tumor. Most cases have been reported in young, pregnant women and the condition is very rare in a postmenopausal patient. An 81-year-old woman presented with a huge pelvic mass. Abdominal computed tomography and magnetic resonance imaging results suggested a leiomyoma with degenerative change and hemorrhage. Microscopically, large, thick-walled and variable-sized vascular channels were evident in the majority part of myometrium; the lining cells were immunohistochemically reactive for CD31. Vascular tumors of the female genital tract should be cautiously excised due to the profuse intra-operative bleeding. The pathological examination of a hysterectomy specimen is the only method to confirm the diagnosis of this tumor.
Aged, 80 and over
;
Animals
;
Caves
;
Female
;
Hemangioma, Cavernous
;
Hemorrhage
;
Humans
;
Hysterectomy
;
Leiomyoma
;
Magnetic Resonance Imaging
;
Mice
;
Myometrium
;
Pregnant Women
;
Uterus
3.Thalamic Volume in Schizophrenia Patients, Subjects at Ultra-High Risk for Psychosis and Controls.
Myong Wuk CHON ; Wi Hoon JUNG ; Jung Seok CHOI ; Myung Hun JUNG ; Chi Won KIM ; Chi Hoon CHOI ; Jun Soo KWON
Journal of Korean Neuropsychiatric Association 2009;48(5):314-319
OBJECTIVES: To investigate the changes in thalamic volumes in subjects at ultra-high risk (UHR) for psychosis. Subjects manifest changes which are similar to but different from those found in subjects with schizophrenia, and thalamic structural changes were often reported in schizophrenic subjects. METHODS: Thalamic volumes of 29 UHR subjects, 31 subjects with schizophrenia and 29 healthy controls, were measured from their T1-weighted coronal magnetic resonance (MR) images using manual tracing. RESULTS: UHR subjects showed greater right (6.243+/-0.848 cm3) and total (12.254+/-1.532 cm3) thalamic volumes compared to healthy control subjects (right thalamic volume=5.527+/-0.715 cm3, total thalamic volume=11.058+/-1.490 cm3) or patients with schizophrenia (right thalamic volume=5.855+/-0.938 cm3, total thalamic volume=11.513+/-1.784 cm3). The difference was significant for right (F=5.837, p=0.004) and total (F=4.217, p=0.018) thalamic volumes after intracranial volume had been accounted for as a covariate in ANCOVA. However, thalamic volume of subjects with schizophrenia showed no significant difference from controls. This difference was not affected by the presence of major depressive disorder or the magnitude of psychotic symptoms. Those among the UHR subjects taking antipsychotic agents did not show enlarged thalamic volume compared to controls. CONCLUSION: Our findings suggest that the possibility of a volumetric alteration of the thalamus characteristic of the UHR state.
Antipsychotic Agents
;
Depressive Disorder, Major
;
Humans
;
Magnetic Resonance Imaging
;
Magnetic Resonance Spectroscopy
;
Psychotic Disorders
;
Schizophrenia
;
Thalamus
4.Morphological Studies of the Neuropeptide Y Immunoreactiive Neurons in the Cerebral Cortex and the Corpus Striatum of Striped Field Mouse (apodemus agrarius coreae).
Kyoung Youl LEE ; Il Kwon PARK ; Chi Won SONG ; Hyo Jung KWON ; Mi Sun PARK ; Young Gil JUNG ; Kang Iee LEE ; Chun Ho LEE ; Byung Hwa HYUN ; Nong Hun CHOE
Korean Journal of Anatomy 2001;34(2):207-218
Neuropeptide Y(NPY) was first isolated from porcine brain. This discovery has led some workers to study the distribution of this peptide in the central nervous system of various mammals. In this study examined the distribution pattern of NPY-immunoreactive (NPY-IR) neurons in the Striped Field Mouse (Apodemus agrarius coreae) cerebral cortex and striatum, using immunohistochemical method. The results obtained in this study were summarized as followings. 1. NPY-IR neurons distributed in all layer of cerebral cortex. The number of neurons were higher in layer V and VI than in layer I and IV. 2. The shape of neurons was predominantly round or oval in layer I and II, and triangular in layer V and VI. And the processes were parallel to pia mater in layer I and II and were vertical in layer III. 3. The highest number of NPY-IR neurons were found in the perirhinal cortex but a few distinct population were found in the retrosplenial cortex. 4. In stiatum NPY-IR neurons were observed only in caudate-putamen nucleus. 5. The Immunoreactive neurons in caudate-putamen varied in their shape, but most of them were triangular or multiform neurons had omnidirectional processes.
Animals
;
Brain
;
Central Nervous System
;
Cerebral Cortex*
;
Corpus Striatum*
;
Mammals
;
Mice*
;
Neurons*
;
Neuropeptide Y*
;
Neuropeptides*
;
Pia Mater
5.Induction of apoptosis in human cervical cancer cells by isoliquritizenin.
Sun Wook JUNG ; Yun Ok KIM ; Suk Hyun KIM ; Sang Hun KWON ; Chi Heum CHO ; Soon Do CHA
Korean Journal of Gynecologic Oncology 2006;17(1):47-53
OBJECTIVE: Isoliquritizenin (ISL) is a chalcone flavonoid, present in licorice, shallot and bean sprouts, has cancer preventing properties and often used in chinese medicine. In this study, ISL to determine its effect on cell proliferation and cell cycle progression in human cervical cancer cells were evaluated. METHODS: Cell viability assay was carried out to determine the viability of human cervical cancer cells. We tested the several experimental methods for verification and functional identification, including MTT assay, FACS analysis, DNA fragmentation assay, and Western blot analysis for ISL treated human cervical cancer cells (HeLa). RESULTS: ISL, induced growth inhibition in a dose dependent manner, treatment with 50 microM/L ISL blocked 50% cell growth. FACS results showed that there was no change in the S phase, but on the other hand ISL increased the percentage of cells in G1 phase. DNA fragmentation assay by ELISA was done to find the rate of apoptosis. Apoptosis took place but in a reduced manner. From Western blot analysis, it revealed ISL induced the expression of p21(Cip1/Waf1) and p27(kip1) but not mediated by p53. Caspase pathway was revealed and cleavage of PARP took place. CONCLUSION: ISL, a chalcone flavonoid, inhibited cell proliferation and induced cell cycle arrest at sub G1 by enhancing the production of p21(Cip1/Waf1) and p27(kip1). These results indicate that ISL will be a promising agent for use in chemopreventive or therapeutic against human cervical cancer cells.
Apoptosis*
;
Asian Continental Ancestry Group
;
Blotting, Western
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Cell Proliferation
;
Cell Survival
;
Chalcone
;
DNA Fragmentation
;
Enzyme-Linked Immunosorbent Assay
;
G1 Phase
;
Glycyrrhiza
;
Hand
;
Humans*
;
S Phase
;
Shallots
;
Uterine Cervical Neoplasms*
6.Midtrimester Amniocentesis for Prenatal Diagnosis.
Sook Ryung KIM ; Eun Jung CHOI ; Tae Yoon KIM ; Kyoung Hun KWON ; Nam Hee SONG ; Sun Kyung OH ; Hee Jun CHI
Journal of Genetic Medicine 2008;5(2):125-130
PROPOSE: To analyze the indications and cytogenetic results of midtrimester amniocentesis. MATERIAL AND METHODS: This study reviewed 2,523 cases of midtrimester prenatal genetic amniocentesis performed at MizMedi Hospital between January 2000 and December 2007. RESULTS: The most frequent indication for midtrimester amniocentesis was advanced maternal age (45.9%), followed by positive serum markers (29.9%). Chromosomal aberrations were diagnosed in 110 cases (4.4%), for which numerical aberration accounted for 38 cases (34.5%), structural aberration accounted for 65 cases (59.1%), and mosaicism accounted for 7 cases (6.4%). Among the autosomal aberrations, there were 20 cases of trisomy 21 and 8 cases of trisomy 18. With respect to structural aberrations, there were 14 cases of reciprocal translocation and 8 cases of robertsonian translocation. The frequencies of chromosomal aberrations according to the indication were highest in individuals with a family history of chromosome abnormality 14.0% (8/57) followed by previous congenital anomaly 5.9% (2/34). CONCLUSION: Midtrimester amniocentesis is an effective tool for prenatal diagnosis. Indications such as advanced maternal age, maternal serum markers, and ultrasound are important for predicting abnormal fetal karyotypes.
Amniocentesis
;
Biomarkers
;
Chromosome Aberrations
;
Cytogenetics
;
Down Syndrome
;
Female
;
Humans
;
Karyotype
;
Maternal Age
;
Mosaicism
;
Pregnancy
;
Pregnancy Trimester, Second
;
Prenatal Diagnosis
;
Trisomy
7.Intractable Postpartum Bleeding: A Comparison of the Retrospective Analysis of Angiographic Findings and Transcatheter Arterial Embolization According to Delivery Pattern.
Eun Jung AHN ; Young Hwan KIM ; Si Hyung KIM ; Jin Soo CHOI ; Jun Cheol PARK ; Sang Hun KWON ; Chi Heum JO ; Soon Do CHA
Journal of the Korean Radiological Society 2008;59(6):373-379
PURPOSE: We evaluated the technical aspect and efficacy of transcatheter arterial embolization (TAE) in cases of intractable postpartum bleeding by comparing the angiographic findings women patients according to their delivery pattern. MATERIALS AND METHODS: Between July of 2003 and March of 2008, 55 female patients were enrolled in this study. Of the 55 patients, 36 underwent a vaginal delivery (group 1), whereas 19 underwent a cesarean section delivery (group 2). We retrospectively evaluated the angiographic findings and the embolization technique between groups, using a Pearson Chi-Square test. Medical records and telephone interview findings were also reviewed to evaluate the efficacy of TAE and the outcome of fertility. RESULTS: Significantly greater positive angiographic findings were found in group 2 (63.2%) relative to group 1 (30.6%). For positive angiographic findings, except for AVM, the embolization was performed using coil or glue with gelfoam. For the negative angiographic findings or AVM, the gelfoam was the only embolic agent used. In all patients except for one, bleeding stopped after embolization. Major complications occurred in 2 patients only, and included uterine synechia and perforation. All patients except for one recovered after menstruation. In total, four patients became pregnant and one patient delivered a healthy infant. CONCLUSION: Positive angiographic findings requiring embolization with coil or glue, as well as gelfoam, were more commonly encountered in group 2 than in group 1. Based on the outcome of the study group, TAE is a safe and effective treatment for intractable postpartum bleeding and is also useful for preserving fertility.
Adhesives
;
Angiography
;
Cesarean Section
;
Embolization, Therapeutic
;
Female
;
Fertility
;
Gelatin Sponge, Absorbable
;
Hemorrhage
;
Humans
;
Infant
;
Interviews as Topic
;
Medical Records
;
Menstruation
;
Obstetric Labor Complications
;
Postpartum Hemorrhage
;
Postpartum Period
;
Pregnancy
;
Retrospective Studies
;
Uterus
8.Gray Matter Changes in Patients with Pathological Gambling: A Preliminary Study Using Voxel-Based Morphometry Study.
Jung Seok CHOI ; Young Chul SHIN ; Wi Hoon JUNG ; Myung Hun JUNG ; Joon Hwan JANG ; Do Hyung KANG ; Chi Hoon CHOI ; Jun Soo KWON ; Jun Young LEE
Journal of the Korean Society of Biological Psychiatry 2009;16(3):190-197
OBJECTIVES: The purpose of this study was to examine structural abnormalities of brain in patients with pathological gambling(PG) using voxel-based morphometry. METHODS: We compared gray matter(GM) volumes between 10 patients with PG and 14 age- and IQmatched healthy controls and examined the relationship of GM volumes with clinical variables in patients with PG. RESULTS: We found significant increase of GM volume in the superior, middle, and inferior frontal gyri, the midbrain, the middle temporal gyrus, the precuneus, and the fusiform gyrus of patients with PG. A significant decrease of GM volume was observed in the parahippocampal gyrus and the lingual gyrus of the patient group. In addition, GM volumes in some of these regions were positively associated with South Oaks Gambling Screen score and negatively with age of onset in patients with PG. CONCLUSION: Current findings indicate that structural abnormalities in the fronto-temporal cortex, the midbrain, and the precuneus might be involved in the pathophysiology of PG, and contribute to some of the behavioral changes observed in patients with PG.
Age of Onset
;
Brain
;
Gambling
;
Humans
;
Mesencephalon
;
Parahippocampal Gyrus
9.Depressive Symptoms and Brain Metabolite Alterations in Subjects at Ultra-high Risk for Psychosis: A Preliminary Study.
Min Soo BYUN ; Jung Seok CHOI ; So Young YOO ; Do Hyung KANG ; Chi Hoon CHOI ; Dong Pyo JANG ; Wi Hoon JUNG ; Myung Hun JUNG ; Joon Hwan JANG ; Jong Min LEE ; Jun Soo KWON
Psychiatry Investigation 2009;6(4):264-271
OBJECTIVE: Recent neuroimaging studies have suggested that brain changes occur in subjects at ultra-high risk (UHR) for psychosis while experiencing prodromal symptoms, among which depression may increase the risk of developing a psychotic disorder. The goal of this study is to examine brain metabolite levels in the anterior cingulate cortex, the left dorsolateral prefrontal cortex and the left thalamus in subjects at UHR for psychosis and to compare brain metabolite levels between the UHR subjects with comorbid major depressive disorder and healthy controls. METHODS: Proton magnetic resonance spectroscopy was used to examine brain metabolite levels. Twenty UHR subjects and 20 age- and intelligence quotient (IQ)-matched healthy controls were included in this study. RESULTS: Overall, no significant differences were observed in any metabolite between the UHR and healthy control group. However, UHR subjects with major depressive disorder showed significantly higher myo-inositol (Ins) levels in the left thalamus, compared to the healthy control. CONCLUSION: Our results demonstrate that increased thalamic Ins level is associated with prodromal depressive symptoms. Further longitudinal follow-up studies with larger UHR sample sizes are required to investigate the function of Ins concentrations as a biomarker of vulnerability to psychosis.
Brain
;
Depression
;
Depressive Disorder, Major
;
Gyrus Cinguli
;
Intelligence
;
Magnetic Resonance Spectroscopy
;
Neuroimaging
;
Prefrontal Cortex
;
Prodromal Symptoms
;
Protons
;
Psychotic Disorders
;
Sample Size
;
Schizophrenia
;
Thalamus
10.Depressive Symptoms and Brain Metabolite Alterations in Subjects at Ultra-high Risk for Psychosis: A Preliminary Study.
Min Soo BYUN ; Jung Seok CHOI ; So Young YOO ; Do Hyung KANG ; Chi Hoon CHOI ; Dong Pyo JANG ; Wi Hoon JUNG ; Myung Hun JUNG ; Joon Hwan JANG ; Jong Min LEE ; Jun Soo KWON
Psychiatry Investigation 2009;6(4):264-271
OBJECTIVE: Recent neuroimaging studies have suggested that brain changes occur in subjects at ultra-high risk (UHR) for psychosis while experiencing prodromal symptoms, among which depression may increase the risk of developing a psychotic disorder. The goal of this study is to examine brain metabolite levels in the anterior cingulate cortex, the left dorsolateral prefrontal cortex and the left thalamus in subjects at UHR for psychosis and to compare brain metabolite levels between the UHR subjects with comorbid major depressive disorder and healthy controls. METHODS: Proton magnetic resonance spectroscopy was used to examine brain metabolite levels. Twenty UHR subjects and 20 age- and intelligence quotient (IQ)-matched healthy controls were included in this study. RESULTS: Overall, no significant differences were observed in any metabolite between the UHR and healthy control group. However, UHR subjects with major depressive disorder showed significantly higher myo-inositol (Ins) levels in the left thalamus, compared to the healthy control. CONCLUSION: Our results demonstrate that increased thalamic Ins level is associated with prodromal depressive symptoms. Further longitudinal follow-up studies with larger UHR sample sizes are required to investigate the function of Ins concentrations as a biomarker of vulnerability to psychosis.
Brain
;
Depression
;
Depressive Disorder, Major
;
Gyrus Cinguli
;
Intelligence
;
Magnetic Resonance Spectroscopy
;
Neuroimaging
;
Prefrontal Cortex
;
Prodromal Symptoms
;
Protons
;
Psychotic Disorders
;
Sample Size
;
Schizophrenia
;
Thalamus