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
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Eyelids
;
Female
;
Forehead
;
Humans
;
Melanoma
;
Middle Aged
;
Neck
;
Sigmoidoscopy
4.A Case of 5-fluorouracil-induced Phototoxicity.
Korean Journal of Dermatology 2006;44(11):1364-1366
5-fluorouracil (5-FU) is an antimetabolite which prevents thymine synthesis and suppresses the utilization of preformed uracil. A variety of cutaneous reactions have been reported with the use of systemic 5-FU, the most common being photosensitivity. We report a case of 5-FU induced phototoxicity in a 73-year-old male. The patient had tender and slightly pruritic scaly and crusted erythema on sun-exposed areas. A biopsy revealed necrotic keratinocytes with epidermal degeneration. After the cessation of 5-FU, the skin lesions showed a marked improvement, and there was no further photosensitivity to the skin.
Aged
;
Biopsy
;
Dermatitis, Phototoxic*
;
Erythema
;
Fluorouracil
;
Humans
;
Keratinocytes
;
Male
;
Skin
;
Thymine
;
Uracil
5.A Case of Scrofuloderma with Cervical Lymphadenitis.
Korean Journal of Dermatology 2007;45(3):279-282
Scrofuloderma results from contiguous extension of an underlying tuberculous focus secondary to local tissue breakdown. The underlying focus may be a tuberculous bone or joint or even epididymis, but it occurs most commonly over a lymph node, particularly the cervical lymph node. A 29-year-old man presented with a tender, erythematous, linear, fluctuating plaque and nodules on the right side of his neck. He had pulmonary and intestinal tuberculosis. A biopsy specimen from the skin lesion showed caseation necrosis surrounded by granulomatous infiltration, composed of epithelioid cells, mononuclear cells and Langhans' giant cells in the dermis. Acid-fast bacilli were identified on AFB staining. Herein, we report a typical case of scrofuloderma associated with cervical lymphadenitis.
Adult
;
Biopsy
;
Dermis
;
Epididymis
;
Epithelioid Cells
;
Giant Cells
;
Humans
;
Joints
;
Lymph Nodes
;
Lymphadenitis*
;
Male
;
Neck
;
Necrosis
;
Skin
;
Tuberculosis
;
Tuberculosis, Cutaneous*
6.Neodymium YAG Laser and Surgical Synechiolysis of Iridocapsular Adhesions.
Eun Ah KIM ; Min Chul BAE ; Young Wook CHO
Korean Journal of Ophthalmology 2008;22(3):159-163
PURPOSE: Several articles have been published on the successful elimination of iridolenticular synechiae after cataract extraction with a neodymium YAG laser (Nd:YAG laser) and surgical synechiolysis during cataract surgery, but the indications recommending which method is proper to use for specific kinds of adhesions have not yet been established. METHODS: We retrospectively reviewed the medical records of 106 patients who had undergone Nd:YAG laser or surgical synechiolysis between January 2002 and December 2007 in our clinic. Laser synechiolysis was performed in the synechiae not exceeding the extent of one clock hour and reaching only to the iris sphincter, whereas surgical synechiolysis was performed in other diffuse and/or thick synechiae. RESULTS: Surgical synechiolysis was performed in 93 eyes, and YAG laser synechiolysis was done in 21 eyes. Increases in best-corrected visual acuity (BCVA) were observed in 61 eyes (53.51%). Intraocular pressure spikes after the procedure were present in only 4 eyes, and all of them were transient except for 1 eye, which needed additional glaucoma eyedrops. CONCLUSIONS: With suitable indications, laser or surgical synechiolysis can be performed safely, and a small rise in visual acuity may also be expected.
Adult
;
Aged
;
Aged, 80 and over
;
Cataract Extraction
;
Female
;
Humans
;
Iris Diseases/*surgery
;
Lasers, Solid-State/*therapeutic use
;
Lens Capsule, Crystalline/*surgery
;
Lens Diseases/*surgery
;
Male
;
Middle Aged
;
Postoperative Complications/*surgery
;
Retrospective Studies
;
Tissue Adhesions/surgery
;
Visual Acuity
7.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
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.Comparison of Laparoscopic Radiofrequency Myolysis (LRFM) and Ultrasonographic Radiofrequency Myolysis (URFM) in Treatment of Midline Dysmenorrhea.
Eun A CHO ; Mi Jung UM ; Soo Ah KIM ; Suk Jin KIM ; Hyuk JUNG
Journal of Menopausal Medicine 2014;20(2):75-79
OBJECTIVES: To access the effectiveness of radiofrequency myolysis (RFM) in women with midline dysmenorrhea. METHODS: We designed RFM in two ways laparoscopic RFM (LRFM), vaginal ultrasound-guided RFM (URFM). One hundred and thirty-two patients were in the LRFM group and, 140 patients were in the URFM group. RESULTS: Upon receipt of surgery, both the LRFM and the URFM groups demonstrated a significant decrease (P < 0.001) in the mean pain score when compared to those before and after surgery. CONCLUSION: The RF uterine myolysis procedure provides an alternative for those patients who suffer from intractable midline dysmenorrhea. LRFM is an alternative choice because it is relatively safe and, simple to perform and moreover, it is satisfactory. LRFM appears to increasingly succeed in the treatment of midline dysmenorrhea.
Dysmenorrhea*
;
Female
;
Humans
;
Laparoscopy
;
Leiomyoma
;
Ultrasonography
10.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