1.Effect of Cumulus Cell Coculture on Early Mouse Embryonal Development in vitro.
Jae Du YOO ; Hyun Jeong PARK ; Yu II LEE
Korean Journal of Obstetrics and Gynecology 2000;43(4):665-669
OBJECTIVE: To evaluate whether the rate of early mouse embryonal development could be enhanced by cumulus cell coculture in vitro. METHODS: Ham's F-10 culture media supplemented with 0.4% bovine serum albumin were used. Two-cell F1 mouse embryos were cultured in media with or without cumulus cells of female ICR mouse embryo for 96 hours, and the rates of embryonal development were observed and compared. RESULTS: The percentage of hatched blastocyst in the coculture group was significantly higher than that in the control group by 87.3% vs 64.8% respectively (p< 0.05). CONCLUSION: This study provides confirmative information that cumulus cell coculture will be useful in enhancing early mouse embryonal development.
Animals
;
Blastocyst
;
Coculture Techniques*
;
Culture Media
;
Cumulus Cells*
;
Embryonic Structures
;
Female
;
Humans
;
Mice*
;
Mice, Inbred ICR
;
Serum Albumin, Bovine
3.Treatment of Peripheral Artery Pseudoaneurysm: Three Case Reports.
Jeong Hyun YOO ; Eun Cheol CHUNG ; Jeong Soo SUH ; Du Hwan CHOE
Journal of the Korean Radiological Society 1996;34(1):53-57
The pseudoaneurysms are resulted from complication of vascular catheterization, trauma, etc. and recently, the reports on pseudoaneurysms have been increasing. Successful treatment of pseudoaneurysms have been described usingdirect compression guided by color doppler ultrasound, instead of invasive surgical treatment. Authors experienced three cases of pseudoaneurysm ; two resulted from post-catheterization and one from trauma. We successfully treated two post-catheterization cases using C-clamp compression under the color doppler US-guidance. The traumatic case was treated by embolization instead of US-guided compression. We suggest that the compression of pseudoaneurysm using C-clamp under the US-guidance is more useful than hand or probe compression method.
Aneurysm, False*
;
Arteries*
;
Hand
;
Ultrasonography
;
Vascular Access Devices
5.Colitis Cystica Profunda Causing Intussusception: A Case Report.
Su Jeong KIM ; Kang Soo LEE ; Du Seong JEON
Journal of the Korean Radiological Society 2000;43(5):599-602
Colitis cystica profunda is a benign disorder in which a mucous cyst is located in the submucosal layer of, primarily, the pelvic colon and rectum. Radiologic reports of the condition are rare. We report the radiological findings of a case of colitis cystica profunda arising from the proximal ascending colon near the ileocecal valve, and causing intussusception. We also review the literature.
Colitis*
;
Colon
;
Colon, Ascending
;
Ileocecal Valve
;
Intussusception*
;
Rectum
6.Current Status of Translational Research on Gastroesophageal Reflux Disease.
The Korean Journal of Gastroenterology 2016;68(3):127-131
The prevalence of gastroesophageal reflux disease (GERD) and the incidence of some of its complications have risen strikingly over the last few decades. With the increase in our understanding of the pathophysiology of GERD along with the development of proton pump inhibitors, the diagnostic and therapeutic approaches to GERD have changed dramatically over the past decade. However, GERD still poses a problem to many clinicians since the spectrum of the disease has evolved to encompass more challenging presentations such as refractory GERD and extra-esophageal manifestations. The aim of this article is to provide a review of available current translational research on GERD. This review includes acid pocket, ambulatory pH monitoring, impedance pH monitoring, mucosa impedance, and high resolution manometry. This article discusses current translational research on GERD.
Electric Impedance
;
Esophageal pH Monitoring
;
Gastroesophageal Reflux*
;
Hydrogen-Ion Concentration
;
Incidence
;
Manometry
;
Mucous Membrane
;
Prevalence
;
Proton Pump Inhibitors
;
Translational Medical Research*
7.Prevalence rate of lead related subjective symptoms in lead workers.
Du Shin JEONG ; Hwa Sung KIM ; Kyu Dong AHN ; Byung Kook LEE
Korean Journal of Preventive Medicine 1993;26(2):251-267
The relationship between lead related subject symptoms and lead exposure indices was studied in 435 male lead workers in thirteen lead using industries. 212 male office workers who were not exposed to lead occupationally were also studied as a control group. Fourteen lead related symptoms were selected. They were further subdivided into 4 sub-symptom groups such as 1) gastrointestinal, 2) neuromuscular and joint 3) constitutional, and 4) psychological symptoms. Symptom questionnaires were provided to the workers and filled up by themselves and reconfirmed by interviewer(doctor). The test used for the evaluation of lead exposure were blood lead (PbB), zinc protoporphyrin in whole blood(ZPP), hemoglobin(Hb), hematocrit(Hct), delta-aminolevulinic acid in urine(DALA). The results obtained were as follows; 1. The higher prevalence rate in the sub-group of neuromuscular and joint symptoms was observed in occupationally lead exposed subjects than non-exposed subjects. Among the sub-groups, the most frequent symptom was "numbness of finger, hands of feet", and the prevalence of the symptom of "arthralgia", "weakness of fingers, hands or feet" and "myalgia" were higher in order. 2. While the symptom which showed the biggest difference of prevalence rate among the 14 symptoms between exposed and non-exposed subjects was "numbness of fingers, hands or feet" , the symptom which showed the highest prevalence rate was "feeling tired generally" in exposed and non-exposed subjects, but no statistical difference of symptom prevalence were observed. 3. In total study population, PbB and ZPP had dose-response relationship with 4 symptoms of neuromuscular and joint symptoms ("numbness of finger, hands or feet", "arthralgia", "weakness of fingers, hands or feet" and "myalgia") and one symptom of gastrointestinal group("intermittent pains in lower abdomen"). 4. In lead exposed workers, only neuromuscular and joint symptoms group showed dose-response relationship with PbB and ZPP. 5. In lead exposed workers, the prevalence rate of overall symptoms of lead workers with age below 39 years was higher than that of lead workers with age above 40. While neuromuscular and joint symptoms group had a dose-response relationship with PbB in former group, it had a dose-response relationship with ZPP in latter group. 6. Age adjusted odds ratios of symptoms of non-exposed with exposed and odds ratios of low exposed with high exposed workers showed the dose-response relationship of lead exposure with neuromuscular and joint symptoms group("numbness of fingers, hands or feet", "arthralgia", "weakness of fingers, hands or feet" and "myalgia") and gastrointestinal symptoms group("intermittent pains in lower abdoman").
Aminolevulinic Acid
;
Fingers
;
Hand
;
Humans
;
Joints
;
Male
;
Occupations
;
Odds Ratio
;
Prevalence*
;
Surveys and Questionnaires
;
Zinc
8.Can Mucosal Impedance Differentiate Gastroesophageal Reflux Disease (GERD) from Non-GERD Conditions?.
The Korean Journal of Gastroenterology 2015;65(4):261-263
No abstract available.
9.A case of emphysematous pyelonephritis with emphysematous cystitis
Hee Woo LEE ; Ro Hee JEONG ; Jae Ha KIM ; Du Hyok CHOI
Journal of the Korean Radiological Society 1986;22(6):1072-1076
Emphysematous pyelonephritis is rare but frequently fatal disease that usually occures in diabetic patients, 6cases having been reported in Korea. We have experienced a case of simultaneously occuring emphysematouspyelonephritis and emphysematous cystitis in 54 years old female patient, which have never been reported in Korea,and got satisfactory improvement with medical treatment.
Cystitis
;
Female
;
Humans
;
Korea
;
Pyelonephritis
10.Staurosporine Induces ROS-Mediated Process Formation in Human Gingival Fibroblasts and Rat Cortical Astrocytes.
Han Gil LEE ; Du Sik KIM ; Seong Ah MOON ; Jeong Wan KANG ; Jeong Taeg SEO
International Journal of Oral Biology 2015;40(1):27-33
In the present study, we investigated the effect of staurosporine on the formation of cellular processes in human gingival fibroblasts and rat astrocytes. Staurosporine caused a rapid induction of process formation in human gingival fibroblasts and rat astrocytes in a concentration dependent manner. The process formation of human gingival fibroblasts and rat astrocytes was prevented by the pretreatment with N-acetylcysteine, suggesting that staurosporine-induced ROS production was responsible for the process formation. Colchicine, a microtubule depolymerizing agent, inhibited the staurosporine-induced process formation, whereas cytochalasin D, an actin filament breakdown agent, failed to suppress the formation of cellular processes. This result indicated that polymerization of microtubule, and not actin filament, was responsible for the formation of cellular processes induced by staurosporine. In support of this hypothesis, Western blot analysis was conducted using anti-tubulin antibody, and the results showed that the amount of polymerized microtubule was increased by the treatment with staurosporine while that of depolymerized beta-tubulin in soluble fraction was decreased. These results indicate that staurosporine induces ROS-mediated, microtubule-dependent formation of cellular processes in human gingival fibroblasts and rat astrocytes.
Acetylcysteine
;
Actin Cytoskeleton
;
Animals
;
Astrocytes*
;
Blotting, Western
;
Colchicine
;
Cytochalasin D
;
Fibroblasts*
;
Humans
;
Microtubules
;
Polymerization
;
Polymers
;
Rats*
;
Staurosporine*
;
Tubulin