1.Immunocytochemical and ultrastructural study of localization of the putrescine in rat medulla oblongata.
Jong Eun LEE ; Kyung Ah PARK ; Seung Gwan LEE ; Young Dong CHO
Korean Journal of Anatomy 1991;24(4):409-421
No abstract available.
Animals
;
Medulla Oblongata*
;
Putrescine*
;
Rats*
2.The Effect of Nurses’ Perceived Leader-Member Exchange on Psychological Ownership, Job Engagement, and Turnover Intention
Eun Ah CHO ; Myun Sook JUNG ; Eun Ju HEO
Journal of Korean Academy of Nursing Administration 2023;29(3):298-308
Purpose:
This study is a hypothetical model of the effect of the leader-member exchange relationship on psychological ownership, job engagement, and turnover intention.
Methods:
Data collection was conducted for general nurses who have worked for at least 6 months in a university hospital. The collected data were analyzed using the SPSS/WIN 25.0, and AMOS 18.0 program was used to conduct confirmatory factor analysis as well as goodness of fit verification and hypothesis testing for the hypothetical model.
Results:
The leader-member exchange had a significant, static effect on psychological ownership. The leader-member exchange relationship did not have a significant effect on job engagement and psychological ownership had a significant, static effect on job engagement.The leader-member exchange relationship did not have a significant effect on turnover intention and psychological ownership and job engagement had significant, negative effects on turnover intention.
Conclusion
Intervention and the development of programs to increase the psychological ownership and job engagement of members are proposed to improve the leader-member exchange relationship through leadership education and training and reduce the turnover intention of nurses.
3.Vitiligo-like Depigmentation Associated with Metastatic Melanoma of an Unknown Origin.
Eun Ah CHO ; Myung Ah LEE ; Hoon KANG ; Seung Dong LEE ; Hyung Ok KIM ; Young Min PARK
Annals of Dermatology 2009;21(2):178-181
Although malignant melanoma usually occurs after the diagnosis of vitiligo-like depigmentation, the latter is rarely followed by the former. We herein report on such a case in which recognition of the vitiligo-like depigmentation preceded diagnosing the metastatic melanoma by several months. A 56-year-old woman had first developed vitiligo-like depigmentation on the forehead, eyelids, neck and back 18 months previously and thereafter she detected a hard mass in the left axilla 2 months previously. Based on the histologic findings, the axillary mass was diagnosed as metastatic melanoma. To evaluate the primary tumor focus, thorough examinations that included PET-CT, bone scan and sigmoidoscopy were performed, but we couldn`t find any the original primary tumor. Our case suggests that the vitiligo-like depigmentation could be a sign that heralds metastatic melanoma.
Axilla
;
Eyelids
;
Female
;
Forehead
;
Humans
;
Melanoma
;
Middle Aged
;
Neck
;
Sigmoidoscopy
4.Successful Conservative Chemotherapy for Intramural Pregnancy: A Case Report.
Eun Ah PARK ; Jun Sik CHO ; Dong Heon LEE
Korean Journal of Obstetrics and Gynecology 2003;46(12):2476-2481
More than 95% of ectopic pregnancies involve the fallopian tubes. Other sites of ectopic implantation are less frequent, and a pregnancy in the myometrium is extremely rare. Few cases are reported in the literature which satisfy the criteria required for the diagnosis of intramural ectopic pregnancy, and unequivocal diagnosis without extirpation of the ruptured uterus is difficult. Most of ruptured cases have been treated with surgical modality including hysterectomy, and for more conservative management early detection is important. MRI is a useful, noninvasive and confirmative imaging modality for the detection of intramural pregnancy. Chemotherapy with methotrexate is an effective treatment that allows preservation of reproductive potential in selected case. We described a case of unruptured intramural pregnancy diagnosed with MRI and successfully treated with methotrexate. Theoretical and possible pathophysiologic derangements of this rare pregnancy- related disorder are also reviewed.
Animals
;
Diagnosis
;
Drug Therapy*
;
Fallopian Tubes
;
Female
;
Hysterectomy
;
Magnetic Resonance Imaging
;
Methotrexate
;
Mice
;
Myometrium
;
Pregnancy*
;
Pregnancy, Ectopic
;
Uterus
5.Identification of SLC26A3 Mutations in a Korean Patient with Congenital Chloride Diarrhea.
Eun Sil LEE ; Ah Ra CHO ; Chang Seok KI
Annals of Laboratory Medicine 2012;32(4):312-315
Congenital chloride diarrhea (CLD) is an autosomal recessive disorder with the hallmark of persistent watery Cl(-)-rich diarrhea from birth. Mutations in the solute carrier family 26, member 3 (SLC26A3) gene, which encodes a coupled Cl-/HCO3- exchanger in the ileum and colon, are known to cause CLD. Although there are a few reports of CLD patients in Korea, none of these had been confirmed by genetic analysis. Here, we describe the case of a Korean infant with clinical features of CLD. Using direct sequencing analysis, we identified 2 sequence variants: a missense variant of unknown significance (c.525G>C; p.Arg175 Ser) and a splicing mutation (c.2063-1G>T) in the SLC26A3 gene; these had been inherited from the father and mother, respectively. Whilst CLD is rare, its main symptom, diarrhea, is very common in infants. Hence, the diagnosis of CLD can prove difficult. Mutational analysis of the SLC26A3 gene should be considered as a viable method to confirm a diagnosis of CLD in Korean infants with persistent diarrhea.
Asian Continental Ancestry Group/*genetics
;
Chloride-Bicarbonate Antiporters/*genetics
;
DNA Mutational Analysis
;
Diarrhea/*congenital/diagnosis/genetics/radiography
;
Heterozygote
;
Humans
;
Infant
;
Male
;
Metabolism, Inborn Errors/*diagnosis/genetics/radiography
;
Mutation
;
Mutation, Missense
;
RNA Splicing
;
Republic of Korea
;
Ultrasonography, Prenatal
6.Pars Plana Vitrectomy and Ahmed Valve Implantation for Intractable Glaucoma Comorbid With Retinal Disorders.
Chang Min LEE ; Eun Ah KIM ; Young Wook CHO
Journal of the Korean Ophthalmological Society 2011;52(1):46-52
PURPOSE: To evaluate the efficacy and long-term prognosis of pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders. METHODS: A retrospective review of 34 eyes of 30 patients receiving pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders was performed. Preoperative and postoperative intraocular pressure (IOP) and visual acuity, the usage of IOP-lowering medications and postoperative complications, and surgical success rate were evaluated. RESULTS: IOP and the number of IOP-lowering medications showed a significant decrease after pars plana vitrectomy and Ahmed valve implantation, as compared to before surgery (p < 0.001). The success rate was 88%, 88%, 84% and 85% postoperatively at 1 month, 6 months, 1 year and 3 years respectively. The mean follow up period was 24.21 +/- 14.99 months. Complications related to surgery included hyphema in 2 eyes, recurrent corneal epithelial erosion and defect in 2 eyes, corneal ulcer in 2 eyes and vitreous hemorrhage in 4 eyes. Visual acuity improved in 14 eyes (41.1%), no changes in 13 eyes (38.2%) and decreased in 7 eyes (20.6%). CONCLUSIONS: Pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders show long-term efficacy in lowering IOP.
Corneal Ulcer
;
Eye
;
Follow-Up Studies
;
Glaucoma
;
Humans
;
Hyphema
;
Intraocular Pressure
;
Postoperative Complications
;
Prognosis
;
Retinaldehyde
;
Retrospective Studies
;
Visual Acuity
;
Vitrectomy
;
Vitreous Hemorrhage
7.Aseptic meningitis in 1991: isolation of causative agent.
Yoon Ah PARK ; Eun Young CHO ; Ki Soo KIM ; Young Seo PARK ; Hyung Nam MOON ; Chang Yee HONG
Journal of the Korean Pediatric Society 1993;36(4):506-511
TO know the causative agent of asptic meningitis. we performed and cerebrospinal fluid study on 24 children who had been admitted to the department of Pediatrics.. Asam Medical Center form Jume. 1991 to July 1991. In the 10 cases of them. CSF virus culture was done Special Reference Laboratory, Japan The most of the patients were young infants, and 15 cases of them were under 3 months of age. The male to female ratio was 1:1.4 We observed the main symptoms as fever 100%. irritability 67%, vomiting 17%. poor feeding 13%, seizure 8%. In the 4 cases among the 10 cases with virus culture, Coxsackievirus B5 was cultured. We concluded that the causative agent of this epidemic aseptic meningitis in 1991 was Coxsakievirus B5.
Cerebrospinal Fluid
;
Child
;
Female
;
Fever
;
Humans
;
Infant
;
Japan
;
Male
;
Meningitis
;
Meningitis, Aseptic*
;
Pediatrics
;
Seizures
;
Vomiting
8.Continuous Curvilinear Capsulorhexis (CCC) Remodeling after CCC Widening with a Nd:YAG Laser.
Huyn Chan SHIM ; Eun Ah KIM ; Young Wook CHO
Journal of the Korean Ophthalmological Society 2013;54(1):78-84
PURPOSE: To analyze the factors that affected continuous curvilinear capsulorhexis (CCC) remodeling to different shapes after CCC widening with Nd:YAG laser. METHODS: The medical records of patients who underwent CCC widening with Nd:YAG laser between January 2002 and December 2010 in our clinic were retrospectively reviewed. Eyes that underwent phacoemulsification surgery alone or combined phacoemulsification surgery and vitrectomy were eligible for the study. A remodeled CCC with a nearly complete circle was classified as type a, starfish-shape as type b, and not remodeled CCC as type c, The factors that affected CCC remodeling were analyzed. RESULTS: Among 424 eyes of 316 patients, the type of CCC remodeling had a significant correlation with the time period from phacoemulsification surgery to Nd:YAG CCC widening. There was no significant correlation with age, sex, diabetes, type of intraocular lens, type of surgery and indications for surgery. CONCLUSIONS: CCC widening using Nd:YAG laser was effective and had minimal complications. The sooner the procedure was performed, the more circular CCC remodeling occurred. The capsule's elasticity may influence CCC remodeling, but more studies are needed to clarify other factors.
Capsulorhexis*
;
Elasticity
;
Humans
;
Lenses, Intraocular
;
Medical Records
;
Phacoemulsification
;
Retrospective Studies
;
Vitrectomy
9.MR Portography.
Ho Chul KIM ; Sang Hoon BAE ; Chul Soon CHOI ; Eun Ah KIM ; In Jae KIM ; So Yeon CHO ; Ku Sup YUN
Journal of the Korean Radiological Society 1994;31(6):1121-1125
PURPOSE: We performed this study to evaluate the usefulness and the limitation of magnetic resonance angiography in imaging portal vein and hepatic vein. MATERIALS AND METHODS: Magnetic resonance portography was performed in five normal subjects and seven patients with hepatomas, two patients with Budd-Chiari syndromes, one patient with liver cirrhosis and one patient with hepatic metastasis from stomach cancer. Magnetic resonance angiography was done with a 1.5-T Scanner. Breath-hold two-dimensional time-of flight images with spoiled gradient echo technique were acquired. Scan parameters were 34/8/40degrees(TR ms/TE ms/flip angle). The portal vein and the hepatic vein were selectively imaged by applying two presaturation bands. These images were then postprocessed by a maximum intensity projection algorithm. MRA findings were compared with ultrasonography in all cases of the hepatic disease, and conventional angiography (SMA portography) in four cases. RESULTS: In normal subjects, the splenic vein, intrahepatic and extrahepatic portions of the portal vein, and the hepatic veins were well visualized. In the patients with hepatic diseases, the varices (4 cases), the splenorenal shunts (2 cases), and the recanalized umbilical vein (1 case) were demonstrated. There were portal vein thrombosis in the cases of hepatomas and hepatic metastasis. In the cases of Budd-Chiari syndrome, the hepatic veins were not visualized and there were inferior vena cava obstructions with multiple collateral vessels. CONCLUSION: Compared with ultrasonography, MRP may be useful in evaluation of varices, splenorenal shunts, and other collaterals, though less accurate than conventional angiography. MRP can be useful as a noninvasive screening alternative in the evaluation of portal vein and hepatic veins.
Angiography
;
Budd-Chiari Syndrome
;
Carcinoma, Hepatocellular
;
Hepatic Veins
;
Humans
;
Liver Cirrhosis
;
Magnetic Resonance Angiography
;
Mass Screening
;
Neoplasm Metastasis
;
Portal Vein
;
Portography*
;
Splenic Vein
;
Splenorenal Shunt, Surgical
;
Stomach Neoplasms
;
Ultrasonography
;
Umbilical Veins
;
Varicose Veins
;
Vena Cava, Inferior
;
Venous Thrombosis
10.A Case of Giant Acquired Digital Fibrokeratoma Resembling Supernumerary Digit.
Eun Ah CHO ; Woo Sun LEE ; Si Yong KIM
Korean Journal of Dermatology 2007;45(3):319-320
Acquired digital fibrokeratomas are rare, benign, fibrous and hyperkeratotic skin tumors. The tumors usually occur in adults as solitary, dome-shaped lesions. Fingers and toes are the most frequent localization. We report a case of acquired digital fibrokeratoma in a 62-year-old male who presented with a 1x1x3 cm sized, firm, hyperkeratotic, protruding mass on his left 5th toe. Histologically, an increase collagen bundles with neovascularization in the dermis and overlying acanthosis and orthokeratosis were noted. The patient showed no recurrence 6 months after surgical resection.
Adult
;
Collagen
;
Dermis
;
Fingers
;
Humans
;
Male
;
Middle Aged
;
Recurrence
;
Skin
;
Toes