2.The Effect of Protein Kinase C Pretreatment on Gliotoxin Induced Apoptosis in H9c2 Cells.
Jung Mu HER ; Jay Min OH ; Rae Kil PARK ; Hong Seob SO ; Yeun Ja MUN ; Min Kyu CHOI ; Gab Sang LEE ; Yeun Tai CHUNG ; Ock Kyu PARK
Korean Journal of Physical Anthropology 2000;13(1):119-128
Aspergillus funigatus and other pathogenic fungi synthesize a toxic epidithi- odiopiperzine (ETP) metabolite called gliotoxin. Gliotoxin is an epidithiodiopiperzine compound which can both react with sulfhydryl groups and form hydrogen peroxide. The fungal toxin gliotoxin induces apoptotic cell death in a variety of cells. Apoptosis induced by gliotoxin need calcium but effect of calcium preconditioning is unknown by gliotoxin. We studied the effect of protein kinase C and calcium preconditioning on gliotoxin-induced apoptosis in H9c2 cell. PKC and calcium preconditiong inhibited DNA fragmentation by gliotoxin. From this above results suggest that gliotoxin induce apoptosis via caspase-3 activation, because caspase-3 inhibitor (DEVD-CHO) didn't induce apoptosis in gliotoxin treated H9c2 clls. Calcium and PKC preconditioning inhibit caspase-3 activation by gliotoxin. These data means that PKC preconditioning is related with caspase-3 regulate in gliotoxin-induced apoptosis.
Apoptosis*
;
Aspergillus
;
Calcium
;
Caspase 3
;
Cell Death
;
DNA Fragmentation
;
Fungi
;
Gliotoxin*
;
Hydrogen Peroxide
;
Protein Kinase C*
;
Protein Kinases*
3.Anaplastic Large Cell Lymphoma Involving Anterior Segment of the Eye.
Choul Yong PARK ; Sang Won HWANG ; Do Yeun KIM ; Hee Jin HUH ; Jong Hyun OH
Korean Journal of Ophthalmology 2014;28(1):108-112
A 36-year-old woman was diagnosed with anaplastic large cell lymphoma (ALCL) by excisional biopsy of a left frontal skin lesion. During the first cycle of chemotherapy (cyclophosphamide, doxorubicin, vincristine, and prednisolone), the patient complained of right ocular pain and inflammation. Cytologic examination using aqueous humor revealed atypical lymphocytes, suggesting intraocular ALCL involvement. Acute angle closure developed in the anterior chamber due to rapid progression of ALCL, causing pupillary block. Laser and surgical interventions were attempted but failed to relieve the pupillary block. Finally, radiation therapy resolved the pupillary block to restore the anterior chamber and normalize intraocular pressure. This is the first case in the English literature of ALCL involving the iris to cause acute secondary angle closure.
Adult
;
Anterior Eye Segment/*pathology
;
Biopsy
;
Diagnosis, Differential
;
Eye Neoplasms/*diagnosis
;
Female
;
Humans
;
Lymphoma, Large-Cell, Anaplastic/*diagnosis
;
Magnetic Resonance Imaging
;
*Neoplasm Invasiveness
;
Positron-Emission Tomography
4.Anaplastic Large Cell Lymphoma Involving Anterior Segment of the Eye.
Choul Yong PARK ; Sang Won HWANG ; Do Yeun KIM ; Hee Jin HUH ; Jong Hyun OH
Korean Journal of Ophthalmology 2014;28(1):108-112
A 36-year-old woman was diagnosed with anaplastic large cell lymphoma (ALCL) by excisional biopsy of a left frontal skin lesion. During the first cycle of chemotherapy (cyclophosphamide, doxorubicin, vincristine, and prednisolone), the patient complained of right ocular pain and inflammation. Cytologic examination using aqueous humor revealed atypical lymphocytes, suggesting intraocular ALCL involvement. Acute angle closure developed in the anterior chamber due to rapid progression of ALCL, causing pupillary block. Laser and surgical interventions were attempted but failed to relieve the pupillary block. Finally, radiation therapy resolved the pupillary block to restore the anterior chamber and normalize intraocular pressure. This is the first case in the English literature of ALCL involving the iris to cause acute secondary angle closure.
Adult
;
Anterior Eye Segment/*pathology
;
Biopsy
;
Diagnosis, Differential
;
Eye Neoplasms/*diagnosis
;
Female
;
Humans
;
Lymphoma, Large-Cell, Anaplastic/*diagnosis
;
Magnetic Resonance Imaging
;
*Neoplasm Invasiveness
;
Positron-Emission Tomography
5.A Study on the Tyrosinase Related to the Albinism.
Kwang Sang KIM ; Jeong Joong KIM ; Hwang Hee LEE ; Won Shin KIM ; Hee Sub RHEE ; Jai Min OH ; Min Kyu CHOI ; Seung Taeck PARK ; Yeun Tai CHUNG
Korean Journal of Physical Anthropology 1995;8(2):215-221
The gene for tyrosinase has been mapped to the long arm of chromosome 11 at 11q14-21. The gene is at least 50Kb in length and its coding region is divided into five exons. Until now several mutations of the tyrosinase gene have been identifed in patient with typical oculocutaneous albinism (OCA) who are responsible for tyrosinase negative OCA. It may be possible to determine the types of OCA by measuring the hairbulb tyrosinase activity. Hairbulb tyrosinase activity was examined in a Korean albino to determine the type of OCA. And also tyrosinase assay was carried out in normally pigmented individuals and all members of a Korean albino's family to examine the tyrosinase activities. Five exons of tyrosinase gene from a Korean albino were amplified by polymerase chain reaction. Each amplified exon segments were independently subcloned and DNA sequences of clones were determined. The results obtained were as follows : 1. A Korean albino had no measurable hairbulb tyrosinase activity and was identified as type IA (tyrosinase negative) oculocutaneous albinism. 2. Normally pigmented individuals had different ranges of hairbulb tyrosinase activity. 3. A Korean albino had two single base insertions within exon V (between 337bp and 338bp, 353bp and 354bp) of tyrosinase gene. These insertional mutations might disrupt tyrosinase function and were associated with a total lack of melanin biosynthesis.
Albinism*
;
Albinism, Oculocutaneous
;
Arm
;
Base Sequence
;
Chromosomes, Human, Pair 11
;
Clinical Coding
;
Clone Cells
;
Exons
;
Humans
;
Melanins
;
Monophenol Monooxygenase*
;
Polymerase Chain Reaction
6.Glomus tumor of the forearm with unusual intraoperative features: a case report
Kunyong SUNG ; Heejeong PARK ; Seung Ho LEE ; Chanho JEONG ; Seungkoo LEE ; Ha Yeun OH ; Sang-Yeul LEE
Archives of hand and microsurgery 2024;29(3):191-195
Glomus tumors (GTs) are rare benign vascular neoplasms that predominantly occur in the subungual region of the digits. However, these neoplasms have also been reported in other anatomical locations. Extradigital GTs often present in atypical locations with unconventional symptoms, posing potential diagnostic challenges for clinicians. Herein, we present a recent case of an extradigital GT found in the forearm of a 76-yearold male patient that exhibited intraoperative features similar to those of a nerve sheath tumor or intravascular tumor, further underscoring these diagnostic challenges. This report highlights the pivotal role of frozen section pathology in diagnosing and managing this atypical lesion, thereby facilitating optimal patient care.
7.Asymptomatic Small Bowel Lymphoma Discovered Incidentally Following Ileal Intubation During Screening Colonoscopy.
Eun Hee KIM ; Rae Seok LEE ; Joo Yeun HU ; Yoon Seok CHOI ; Gyo Hui KIM ; Jung Hwan OH ; Sang Young ROH
Korean Journal of Medicine 2014;86(1):49-53
Primary lymphoma of the small intestine is commonly diagnosed after serious complications, such as bowel perforation and bleeding. It results from vague symptoms and the lack of routine screening programs due to low prevalence. Ileal intubation can be used for screening and diagnosis of various small intestinal diseases. However, the value of routine terminal ileum intubation during colonoscopy remains controversial because of its low diagnostic yield. In Korea, there has been no report of asymptomatic primary lymphoma of the small intestine discovered through ileal intubation during colonoscopy. Thus, we report a case of asymptomatic primary lymphoma of the small intestine diagnosed incidentally through terminal ileum intubation during screening colonoscopy, and we review the literature on small intestinal lymphoma and the value of routine ileal intubation.
Colonoscopy*
;
Diagnosis
;
Endoscopy
;
Hemorrhage
;
Ileum
;
Intestinal Diseases
;
Intestine, Small
;
Intubation*
;
Korea
;
Lymphoma*
;
Mass Screening*
;
Prevalence
8.A Case of Pneumoperitoneum, Pneumoretroperitoneum, Pneumomediastinum, and Subcutaneous Emphysema after Endoscopic Submucosal Resection.
Chang Jun SHIN ; Kyoung Wan YOU ; Seoung Bong PYO ; Hyeung Cheul MOON ; Gun Young HONG ; Dong Hyun OH ; Sang Wook PARK ; Yeun Keun LIM ; Kang Suk SEO
Korean Journal of Gastrointestinal Endoscopy 2007;35(2):116-120
Flexible fiberoptic colonoscopy is extensively used for the diagnosis and management of colorectal disease. Many possible complications can occur. The most common and most serious complications are hemorrhage, perforation and respiratory problems. Colonic perforation usually results in a fatal and emergent condition. However, management of iatrogenic colonic perforation has been controversial. The choice between the medical versus the surgical approach has been dependent on the mechanism of the perforation, bowel preparation, location, size of the defect and severity of symptoms. We report here a case where colonic perforation emerged during endoscopic submucosal resection of a rectal tumor. The rectal perforation was accompanied with pneumoperitoneum, subcutaneous emphysema, pneumoretroperitoneum and pneumomediastinum. As the bowel preparation was excellent, intravenous antibiotics and total parenteral nutirition were administered. The patient was treated successfully without any complications.
Anti-Bacterial Agents
;
Colon
;
Colonoscopy
;
Diagnosis
;
Hemorrhage
;
Humans
;
Mediastinal Emphysema*
;
Pneumoperitoneum*
;
Rectal Neoplasms
;
Retropneumoperitoneum*
;
Subcutaneous Emphysema*
9.A Case of Pneumoperitoneum, Pneumoretroperitoneum, Pneumomediastinum, and Subcutaneous Emphysema after Endoscopic Submucosal Resection.
Chang Jun SHIN ; Kyoung Wan YOU ; Seoung Bong PYO ; Hyeung Cheul MOON ; Gun Young HONG ; Dong Hyun OH ; Sang Wook PARK ; Yeun Keun LIM ; Kang Suk SEO
Korean Journal of Gastrointestinal Endoscopy 2007;35(2):116-120
Flexible fiberoptic colonoscopy is extensively used for the diagnosis and management of colorectal disease. Many possible complications can occur. The most common and most serious complications are hemorrhage, perforation and respiratory problems. Colonic perforation usually results in a fatal and emergent condition. However, management of iatrogenic colonic perforation has been controversial. The choice between the medical versus the surgical approach has been dependent on the mechanism of the perforation, bowel preparation, location, size of the defect and severity of symptoms. We report here a case where colonic perforation emerged during endoscopic submucosal resection of a rectal tumor. The rectal perforation was accompanied with pneumoperitoneum, subcutaneous emphysema, pneumoretroperitoneum and pneumomediastinum. As the bowel preparation was excellent, intravenous antibiotics and total parenteral nutirition were administered. The patient was treated successfully without any complications.
Anti-Bacterial Agents
;
Colon
;
Colonoscopy
;
Diagnosis
;
Hemorrhage
;
Humans
;
Mediastinal Emphysema*
;
Pneumoperitoneum*
;
Rectal Neoplasms
;
Retropneumoperitoneum*
;
Subcutaneous Emphysema*
10.The Obstetrical and Statistical Aspects of the Unmarried mother.
Min Su KANG ; Jung Yeun LEE ; Sang Hyeok LEE ; Eun Hee OH ; Chul Woo LEE ; Beom CHOI ; Yong Duk SHIN ; Dong Jin KIM
Korean Journal of Obstetrics and Gynecology 2002;45(8):1347-1353
OBJECTIVE: We focused the objective of this study on the obstetrical and statistical aspects of the unmarried mother, especially teenage pregnancy and 20's pregnancy. METHODS: The 112 well-documented records in the 130 unmarried mothers who delivered at Gangnam general hospital public corporation from 1998 to 2000, were enrolled in our study. Unmarried mothers were divided into three age groups; teenage group, 20's group and 30's group, then, each group was analyzed by liable methods, SPSS (Version 10.0.7) and data were processed by Student's t-test and accepted as the significant meaning within p-value less than 0.05, 95% significant level. RESULTS: In this study, teenage mothers were delivered lower birth weight babies than those of other groups (p=0.000001). Sex partners of teenage mothers, most school boy friends, were similar age to those mothers and low economic state. Despite desire of bringing up children (teenage 11% versus 20's 36%), they gave up their babies because of monetary matters and social bias. And teenage mothers felt stronger affection for babies than 20's. Teenagers' and 20's unmarried mothers have poor information about contraception (teenage group 42%, 20's 31%). CONCLUSION: The unmarried mothers have been constituting many social problems. Fortunately, the absolute number of the unmarried mothers have not increased but the teenage pregnancy has the majority of unmarried mothers (> OR =50%). It is necessary for unmarried mothers to take the education of contraceptive measures, the social systems of bringing up the boarder babies and the retraining courses of unmarried mothers.
Bias (Epidemiology)
;
Birth Weight
;
Child
;
Contraception
;
Education
;
Female
;
Friends
;
Hospitals, General
;
Humans
;
Illegitimacy*
;
Male
;
Mothers
;
Pregnancy
;
Pregnancy in Adolescence
;
Single Person*
;
Social Problems