1.Pityriasis Versicolor Atrophicans.
Jong Hyuk MOON ; Min Ji KANG ; Chan Yl BANG ; Bo Hee YANG ; Ji Won BYUN ; Jeonghyun SHIN ; Gwang Seong CHOI
Korean Journal of Dermatology 2014;52(1):68-70
No abstract available.
Atrophy
;
Pityriasis*
;
Tinea Versicolor*
2.Expression of LFA-3(CD58) After Intracorneal Infection of Candida albicans in Rabbits.
Ji Won JEONG ; Seoung Wan SOHN ; Bang HUR ; Young Ho HAHN
Journal of the Korean Ophthalmological Society 1998;39(12):2875-2884
In this immunohistochemical study we applied a monoclonal antibody(mAb) to evaluate the expression pattern of lymphocyte functionassociated antigen 3(LFA-3) in rabbit`s corneas before and after intracorneal injection of Candida albicans. Ten right eyes were induced to get immunocompromized cornea with subconjunctival injection of 2mg of dexamethasone once a day for 3 days(group I), and 10 left eyes had normal cornea without subconjunctival injection of dexamethazone(group II). Each 2 corneas in both group I and II were resected at 3, 12, 24 and 72 hours after intracorneal injection of C. albicans. Each 2 corneas without intracorneal injection of C. albicans in both groups were used as a control. The results were as follows: LFA-3 was expressed weakly on corneal epithlium in control of group I and group II. Expression of LFA-3 on vascular endothelium of group II was somewhat stronger than that of group I, LFA-3 was expressed moderately on vascular endothelium, and was detected on corneal stroma at 3 hors after intracorneal injection in both groups. Expression of LFA-3 on corneal stroma was slightly increased in both group II, and markedly increased in group I at 12 hours after intracorneal injection. Group II showed slightly increased LFA-3 expression on corneal and II to be expressed on corneal endothelium and inflammatory cells at 24 hours after injection. Its expression on corneal epithelium, stroma and endothelium was more increased in group II than in group I at that time. Group I showed moderate LFA-3 expression on corneal epithelium, corneal endothelium and inflammatory cells, and strong expression on corneal stroma and vascular endothelium at 72 hours after infection. Otherwise, LFA-3 expression in group II was weak to moderate n corneal epithelium, corneal endothelium and inflammatory cell, and moderate on corneal stroma and vascular endothelium. In this study, it was found that expression of LFA-3 in group I was weaker than that in group II in control and at 3 hours after intracorneal injection of C. albicans, but group I showed more strong LFA-3 expression than group II after 12 hours of intracorneal injection.
Antigens, CD58
;
Candida albicans*
;
Candida*
;
Cornea
;
Corneal Stroma
;
Dexamethasone
;
Endothelium
;
Endothelium, Corneal
;
Endothelium, Vascular
;
Epithelium, Corneal
;
Lymphocytes
;
Rabbits*
3.Elimination of Lancet-Related Needlestick Injuries Using a Safety-Engineered Lancet: Experience in a Hospital.
Hye Sun AN ; Suhui KO ; Ji Hwan BANG ; Sang Won PARK
Infection and Chemotherapy 2018;50(4):319-327
BACKGROUND: Lancet-related needlestick injuries (NSIs) occur steadily in clinical practices. Safety-engineered devices (SEDs) can systematically reduce NSIs. However, the use of SEDs is not active and no study to guide the implementation of SEDs was known in South Korea. The lancet-related NSIs may be eliminated to zero incidence using a SED lancet with effective sharp injury protection and reuse prevention features. MATERIALS AND METHODS: We implemented a SED lancet by replacing a conventional prick lancet in a tertiary hospital in a sequential approach. A spot test of the new SED was conducted for 1 month to check the acceptability in practice and a questionnaire survey was obtained from the healthcare workers (HCWs). A pilot implementation of the SED lancet in 2 wards was made for 1 year. Based on these preliminary interventions, a hospital-wide full implementation of the SED lancet was launched. The incidence of NSIs and cost expenditure before and after the intervention were compared. RESULTS: There were 29 cases of conventional prick lancet-related NSIs for 3 years before the full implementation of SED lancet. The proportion of prick lancet-related NSIs among yearly all kinds of NSIs during two years before the pilot study was average 11.7% (22/188). Pre-interventional baseline incidence of all kinds of NSIs was 7.01 per 100 HCW-years. After the full implementation of SED lancet, the lancet-related NSIs became zero in the 2nd year (P = 0.001). The average direct cost of 18,393 US dollars (USD) per year from device and post-exposure medical care before the intervention rose to 20,701 USD in the 2nd year of the intervention. The incremental cost-effectiveness ratio was 210 USD per injury avoided. CONCLUSION: The implementation of a SED lancet could eliminate the lancet-related NSIs to zero incidence. The cost increase incurred by the use of SED lancet was tolerable.
Delivery of Health Care
;
Health Expenditures
;
Incidence
;
Korea
;
Needlestick Injuries*
;
Pilot Projects
;
Tertiary Care Centers
4.Elimination of Lancet-Related Needlestick Injuries Using a Safety-Engineered Lancet: Experience in a Hospital.
Hye Sun AN ; Suhui KO ; Ji Hwan BANG ; Sang Won PARK
Infection and Chemotherapy 2018;50(4):319-327
BACKGROUND: Lancet-related needlestick injuries (NSIs) occur steadily in clinical practices. Safety-engineered devices (SEDs) can systematically reduce NSIs. However, the use of SEDs is not active and no study to guide the implementation of SEDs was known in South Korea. The lancet-related NSIs may be eliminated to zero incidence using a SED lancet with effective sharp injury protection and reuse prevention features. MATERIALS AND METHODS: We implemented a SED lancet by replacing a conventional prick lancet in a tertiary hospital in a sequential approach. A spot test of the new SED was conducted for 1 month to check the acceptability in practice and a questionnaire survey was obtained from the healthcare workers (HCWs). A pilot implementation of the SED lancet in 2 wards was made for 1 year. Based on these preliminary interventions, a hospital-wide full implementation of the SED lancet was launched. The incidence of NSIs and cost expenditure before and after the intervention were compared. RESULTS: There were 29 cases of conventional prick lancet-related NSIs for 3 years before the full implementation of SED lancet. The proportion of prick lancet-related NSIs among yearly all kinds of NSIs during two years before the pilot study was average 11.7% (22/188). Pre-interventional baseline incidence of all kinds of NSIs was 7.01 per 100 HCW-years. After the full implementation of SED lancet, the lancet-related NSIs became zero in the 2nd year (P = 0.001). The average direct cost of 18,393 US dollars (USD) per year from device and post-exposure medical care before the intervention rose to 20,701 USD in the 2nd year of the intervention. The incremental cost-effectiveness ratio was 210 USD per injury avoided. CONCLUSION: The implementation of a SED lancet could eliminate the lancet-related NSIs to zero incidence. The cost increase incurred by the use of SED lancet was tolerable.
Delivery of Health Care
;
Health Expenditures
;
Incidence
;
Korea
;
Needlestick Injuries*
;
Pilot Projects
;
Tertiary Care Centers
5.Jab1 Silencing Inhibits Proliferation and Sensitizes to Cisplatin in Biliary Tract Cancer
Ah Rong NAM ; Ji Won KIM ; Ji Eun PARK ; Ju Hee BANG ; Mei Hua JIN ; Do Youn OH ; Yung Jue BANG
Cancer Research and Treatment 2019;51(3):886-900
PURPOSE: Jab1 is a coactivator of c-Jun that enhances the transcriptional function of c-Jun. Jab1 is frequently overexpressed in various cancers and is associatedwith poor prognosis of cancer patients. Thus, Jab1 could be a potential therapeutic target in cancer. However, the role of Jab1 in biliary tract cancer (BTC) has not been studied. MATERIALS AND METHODS: We performed in vitro and in vivo experiments to evaluate the therapeutic potential ofJab1 inhibition in BTC. RESULTS: Among 8 BTC cell lines, many showed higher Jab1 expression levels. In addition, Jab1 silencing by siRNA increased p27 expression levels. SNU478 and HuCCT-1 cells exhibited profound Jab1 knockdown and increased p27 expression by Jab1-specific siRNA transfection. Jab1 silencing induced anti-proliferative and anti-migratory effects and resulted in G1 cell cycle arrest in SNU478 and HuCCT-1 cells. In addition, Jab1 silencing potentiated the anti-proliferative and anti-migratory effects of cisplatin by increasing DNA damage. Interestingly,Jab1 knockdown increased PTEN protein half-life, resulting in increased PTEN expression. In the HuCCT-1 mouse xenograft model, stable knockdown of Jab1 by shRNA also showed anti-proliferative effects in vivo, with decreased Ki-67 expression and AKT phosphorylation and increased Terminal deoxynucleotidyl transferase–mediated dUTP nick end labeling and p27 expression. CONCLUSION: Jab1 knockdown demonstrated anti-proliferative and anti-migratory effects in BTC cells by increasing DNA damage and stabilizing PTEN, resulting in G1 cell cycle arrest. In addition, Jab1 silencing potentiated the anti-proliferative effects of cisplatin. Our data suggest that Jab1 may be a potential therapeutic target in BTC that is worthy of further investigations.
Animals
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Biliary Tract Neoplasms
;
Biliary Tract
;
Cell Line
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Cisplatin
;
DNA Damage
;
G1 Phase Cell Cycle Checkpoints
;
Half-Life
;
Heterografts
;
Humans
;
In Vitro Techniques
;
Mice
;
Phosphorylation
;
Prognosis
;
PTEN Phosphohydrolase
;
RNA, Small Interfering
;
Transfection
6.A Clinical Study on the Hypotensive Effect of Lisinopril.
Kyoung Won KAHNG ; Jin Won CHOI ; Ji Hoon KIM ; Jeong Hyun KIM ; Heon Kil IM ; Bang Hun LEE ; Chung Kyun LEE
Korean Circulation Journal 1992;22(2):295-300
BACKGROUND: The hypotensive effect of the lisinopril, a long acting angiotensin converting enzyme inhibitor, was studied. METHOD: 10mg of lisinopril was administered in 30 hypertensive Korean adults during twelve week after a weeks observation for washout with stepwise increments of the dose according to the patients blood pressure in every two weeks. RESULTS: The supine blood pressures were decreased from 173.3+/-27.9/105.7+/-19.4mmHg to 131.8+/-23.1mmHg/81.4+/-18.7mmHg at the end of twelve weeks durg therapy(P<0.05). The standing blood pressures were also decreased conferrably and to the some lower levels. Hematologic examination and blood chemistry revealed no discernible abnormal findings before and after the treatment. During the period of the study a few probably drug-related symptom such as dry cough and dry mouth developed but not troublesome enough to stop administering. CONCLUSION: Lisinopril 10mg once daily regimen is well tolerated and effective in the treatment of hypertensive patients.
Adult
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Blood Pressure
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Chemistry
;
Cough
;
Humans
;
Hypertension
;
Lisinopril*
;
Mouth
;
Peptidyl-Dipeptidase A
8.Patent Foramen Ovale and Stroke-Current Status.
Oh Young BANG ; Mi Ji LEE ; Sookyung RYOO ; Suk Jae KIM ; Ji Won KIM
Journal of Stroke 2015;17(3):229-237
Patent foramen ovale (PFO) is growing in clinical interest because of a renewed focus on embolic stroke of undetermined source (ESUS), the PFO attributable fraction (the 10-point Risk of Paradoxical Embolism score), technical advances in PFO diagnosis, and the emergence of endovascular device closure as a treatment option. However, recent randomized controlled trials of the management of patients with ESUS and PFO failed to demonstrate the superiority of closure over medical treatment. The mechanisms of stroke other than paradoxical embolism may be important in patients with ESUS and PFO. This paper reviews the current understanding of the pathophysiology of stroke and therapeutic options in patients with PFO and ESUS.
Diagnosis
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Embolism, Paradoxical
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Foramen Ovale, Patent*
;
Humans
;
Stroke
9.Digital interim immediate denture fabrication and implant-supported removable partial denture fabrication after multiple teeth extraction in patient with chronic periodontitis: a case report
Min-Jae PARK ; Ji-Won BANG ; Joo-Hyuk BANG ; Seon-Young LIM ; Yong-Sang LEE ; Keun-Woo LEE ; Sung-Yong KIM
The Journal of Korean Academy of Prosthodontics 2024;62(2):104-112
When teeth are extracted, patient face social, psychological and aesthetic problems which can be minimized by fabricating a interim immediate denture. Interim immediate denture manufactured using digital technology can be completed with reduced number of patients’ visits and simple laboratory process. Implant-supported removable partial denture (ISRPD) has been suggested as alternative treatment option when fixed implant prosthesis is not feasible. In this case, interim immediate dentures were fabricated using digital technology for patient after teeth extraction and treatment using ISRPD by installing implants and surveyed crowns is found to be successful with better support, stability and maintenance of removable partial dentures.
10.Non-cardioembolic Mechanisms in Cryptogenic Stroke: Clinical and Diffusion-weighted Imaging Features.
Oh Young BANG ; Phil Hyu LEE ; Seung Hyeon YEO ; Ji Won KIM ; In Soo JOO ; Kyoon HUH
Journal of Clinical Neurology 2005;1(1):50-58
BACKGROUND: The role of several cardiogenic risk factors, including patent foramen ovale, in patients with cryptogenic stroke has been extensively studied. However, little attention has been paid to the role of non-cardioembolic causes of cryptogenic stroke. We therefore sought to identify the characteristics of cryptogenic stroke. METHODS: We studied 832 patients with acute infarction in the middle cerebral arterial territory. We divided the patients into four subtypes: 402 with large artery atherosclerosis (LAA), 133 with cardioembolism, 182 with small arterial occlusion (SAO), and 115 with cryptogenic stroke. We compared risk factors and lesion patterns observed by diffusion-weighted imaging (DWI) between patients with cryptogenic stroke and those with stroke of other subtypes. RESULTS: Both risk factors and DWI lesion patterns differed between the cryptogenic and cardioembolic groups (P<0.05). Risk factors for cryptogenic stroke were similar to those for the LAA and SAO groups. Similarly, DWI lesion patterns for cryptogenic stroke were similar to LAA patients. Large cortical infarcts on DWI were more common in the cardioembolic group than in the LAA or cryptogenic groups (P<0.001). In contrast, deep, non-lacunar (OR 5.02; 95% CI 2.68~9.40; P<0.001) and superficial perforator infarcts (OR 2.23; 95% CI 1.08~4.59; P=0.029) were independently associated with the cryptogenic group. CONCLUSIONS: Our results indicate that non-cardioembolic causes, such as macro- and microangiopathy, are important mechanisms in the pathogenesis of cryptogenic stroke.
Arteries
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Atherosclerosis
;
Foramen Ovale, Patent
;
Humans
;
Infarction
;
Magnetic Resonance Imaging
;
Risk Factors
;
Stroke*