1.Two Cases of Pedunculated Lipofibroma.
Oh Chan KWON ; Chul Jong PARK ; Jong Yuk YI
Korean Journal of Dermatology 1999;37(4):550-552
Pedunculated lipofibroma is a rare disorder characterized by ectopic deposits of mature adipose tissue in the dermis. It is a dorne shaped or sessile papule which occurs at any site and develops later in life. We, herein, report two cases of pedunculated lipofibroma which have developed on the chin of a 64-year-old man and the buttock of a 47-year-old woman.
Adipose Tissue
;
Buttocks
;
Chin
;
Dermis
;
Female
;
Humans
;
Middle Aged
2.A case of bilateral tubal pregnancy.
Jae Jung PARK ; Dong Ho JEON ; Sung Han WHANG ; Eui Seon RO ; Soon Yuk KWON
Korean Journal of Obstetrics and Gynecology 1991;34(5):716-718
No abstract available.
Female
;
Pregnancy
;
Pregnancy, Tubal*
3.Two Cases of HPV 16 - positive Bowenoid Papulosis Treated with Diphenylcyclopropenone Immunotherapy.
Yoon Hee KWON ; Tae Yoon KIM ; Jong Yuk LEE ; Chung Won KIM ; Jong Sup PARK ; Seung Jo KIM
Korean Journal of Dermatology 1996;34(1):160-165
Bowenoid papulosis(BP) is characterized by multiple papules with a benign clinical course but having a histopathology of squamous cell carcinoma in situ on the external genitalia of sexually active men and women. It is well known that the Human papilloma virus(HPV) is connected with the development of BP. Out of these, HPV 16 which has been frequently found in the BP lesions is an oncogenic virus and the theory that BP might progress to intraepithelial neoplasia and advanced carcinoma has been postulated. Local destructive therapy including electrodessication, laser surgery, cryosurgery, and surgical excision is effective and produces a low recurrence rate. However, pain, bleeding, restriction in activity, and postoperative scars are inevitable with complete destruction of the multiple lesions. It has been suggested that diphenylcyclopropenone(DCP) might be a promising therapeutic agent for various viral diseases including HPV-related warts, It is a potent sensitizer which is not mutagenic and works by the induction of type IV hypersensitivity response in HPV infected tissue, leading to wart destruction. We herein, report 2 cases of HPV 16-positive BP treated with DCP immunotherapy.
Carcinoma, Squamous Cell
;
Cicatrix
;
Cryosurgery
;
Female
;
Genitalia
;
Hemorrhage
;
Human papillomavirus 16*
;
Humans
;
Hypersensitivity, Delayed
;
Immunotherapy*
;
Laser Therapy
;
Male
;
Oncogenic Viruses
;
Papilloma
;
Recurrence
;
Virus Diseases
;
Warts
4.Gastric Cancer Occurring in a Patient with Plummer-Vinson Syndrome: A case report.
Sung Gun LEE ; Tae Mu LEE ; Yuk KWON ; Ki Han KIM ; Min Chan KIM ; Ghap Joong JUNG
Journal of the Korean Gastric Cancer Association 2004;4(2):131-133
Plummer-Vinson syndrome (sideropenic dysphagia) is characterized by dysphagia due to an upper esophageal or a hypopharyngeal web in a patient with chronic iron deficiency anemia. The main cause of dysphagia is the web of the cervical esophagus, and an abnormal motility of the pharynx or the esophagus is found to play a significant role in the above cause. Patients with this syndrome are thought to be precancerous because squamous cell carcinomas of the hypopharynx, oral cavity, or esophagus take place in 10% of those patients. However, for Plummer-Vinson syndrome to be combined with gastric cancer is most unusual. We report the case of a 43-year-old woman who was first found to have stomach cancer under a diagnosis of Plummer-Vinson syndrome and who recovered after surgery.
Adult
;
Anemia, Iron-Deficiency
;
Carcinoma, Squamous Cell
;
Deglutition Disorders
;
Diagnosis
;
Esophagus
;
Female
;
Humans
;
Hypopharynx
;
Mouth
;
Pharynx
;
Plummer-Vinson Syndrome*
;
Stomach Neoplasms*
5.Operative Outcome of Laparoscopy-assisted Gastrectomy with Lymph Node Dissection in 117 Consecutive Patients with Gastric Cancer: A Single-center Experience.
Tae Mu LEE ; Yuk KWON ; Min Chan KIM ; Ghap Joong JUNG ; Hyung Ho KIM
Journal of the Korean Surgical Society 2004;67(2):106-111
PURPOSE: The aim of this study was to determine the feasibility and safety of laparoscopy-assisted gastrectomy (LAG) with lymph node dissection for gastric cancer according to the analysis of postoperative complications. METHODS: The authors attempted LAG with lymph node dissection in 117 consecutive patients with gastric cancer. The clinicopathologic characteristics of the patients, operative outcomes, preoperative comorbidities and postoperative morbidities and mortalities were evaluated using the stomach cancer database of Dong-A university hospital and medical charts. RESULTS: Among the 114 successful patients, 100 had early gastric cancer and 14 had advanced gastric cancer. The mean operation time was 259.2 minutes (range 150~415). The mean number of retrieved lymph nodes was 23.4 (range 6~66). The mean time to the first flatus and postoperative hospital stay were 3.7 and 10.0 days, respectively. The overall operative mortality rate, hospital death rate and the overall rate of postoperative complications were 0, 1.7 and 14.7%, respectively. The major and minor complication rate were 4.3 and 10.4%, respectively. CONCLUSION: LAG with lymph node dissection is technically feasible and receptive as surgical treatment for patients with gastric cancer, although various postoperative complications can arise in LAG as they do in open gastrectomy.
Comorbidity
;
Flatulence
;
Gastrectomy*
;
Humans
;
Length of Stay
;
Lymph Node Excision*
;
Lymph Nodes*
;
Mortality
;
Postoperative Complications
;
Stomach Neoplasms*
6.Proteomic applications of surface plasmon resonance biosensors: analysis of protein arrays.
Experimental & Molecular Medicine 2005;37(1):1-10
Proteomics is one of the most important issues in the post-genomic area, because it can greatly contribute to identifying protein biomarkers for disease diagnosis and drug screening. Protein array is a key technology for proteome researches and has been analyzed by various methods including fluorescence, mass spectrometry, atomic force microscopy and surface plasmon resonance (SPR). SPR biosensor is a promising technology in proteomics, since it has various advantages including real-time measurement of biomolecular interactions without labeling and the simple optical system for the device. SPR biosensors have a strong potential for analyzing proteomes by SPR imaging and SPR spectroscopic imaging, even though the challenge is to produce proteins on a proteomic scale.
Animals
;
*Biosensing Techniques
;
Humans
;
Protein Array Analysis
;
*Proteomics
;
Research Support, Non-U.S. Gov't
;
*Surface Plasmon Resonance/instrumentation/methods
7.Hypercholesterolemia and In-Vivo Coronary Plaque Composition in Patients with Coronary Artery Disease: A Virtual Histology - Intravascular Ultrasound Study.
Young Hoon SEO ; Chung Seop LEE ; Hyung Bin YUK ; Dong Ju YANG ; Hyun Woong PARK ; Ki Hong KIM ; Wan Ho KIM ; Taek Geun KWON ; Jang Ho BAE
Korean Circulation Journal 2013;43(1):23-28
BACKGROUND AND OBJECTIVES: Hypercholesterolemia is a key factor in the development of atherosclerosis. We sought to evaluate the relation between hypercholesterolemia and plaque composition in patients with coronary artery disease. SUBJECTS AND METHODS: Study subjects consisted of 323 patients (mean 61.5 years, 226 males) who underwent coronary angiography and virtual histology-intravascular ultrasound examination. Patients were divided into two groups according to total cholesterol level: hypercholesterolemic group (> or =200 mg/dL, n=114) and normocholesterolemic group (<200 mg/dL, n=209). RESULTS: Hypercholesterolemic patients were younger (59.7+/-13.3 years vs. 62.6+/-11.5 years, p=0.036), than normocholesterolemic patients, whereas there were no significant differences in other demographics. Hypercholesterolemic patients had higher corrected necrotic core volume (1.23+/-0.85 mm3/mm vs. 1.02+/-0.80 mm3/mm, p=0.029) as well as percent necrotic core volume (20.5+/-8.5% vs. 18.0+/-9.2%, p=0.016) than normocholesterolemic patients. At the minimal lumen area site, percent necrotic core area (21.4+/-10.5% vs. 18.4+/-11.3%, p=0.019) and necrotic core area (1.63+/-1.09 mm2 vs. 1.40+/-1.20 mm2, p=0.088) were also higher than normocholesterolemic patients. Multivariate linear regression analysis showed that total cholesterol level was an independent factor of percent necrotic core volume in the culprit lesion after being adjusted with age, high density lipoprotein-cholesterol , hypertension, diabetes mellitus, smoking and acute coronary syndrome (beta 0.027, 95% confidence interval 0.02-0.053, p=0.037). CONCLUSION: Hypercholesterolemia was associated with increased necrotic core volume in coronary artery plaque. This study suggests that hypercholesterolemia plays a role in making plaque more complex, which is characterized by a large necrotic core, in coronary artery disease.
Acute Coronary Syndrome
;
Atherosclerosis
;
Cholesterol
;
Coronary Angiography
;
Coronary Artery Disease
;
Coronary Vessels
;
Demography
;
Diabetes Mellitus
;
Humans
;
Hypercholesterolemia
;
Hypertension
;
Linear Models
;
Smoking
8.Improved Muscle Mass and Function With Protein Supplementation in Older Adults With Sarcopenia: A Meta-Analysis
Hyo Eun KWON ; Nayeon KO ; Doyoung YUK ; Seo Won CHOI ; Seong-Eun KOH
Annals of Rehabilitation Medicine 2023;47(5):358-366
Objective:
To systematically review the effects of protein supplementation in older adults with sarcopenia.
Methods:
A systematic literature search was conducted in PubMed, Cochrane Library, and Embase databases until May 2023. The inclusion criteria were as follows: (1) randomized controlled trials with a quantitative study design; (2) studies with a study group of older adults with sarcopenia; (3) studies comparing muscle mass, muscle strength, and performance of older adults with sarcopenia after protein supplementation; and (4) studies published up to May 2023.
Results:
Six retrospective comparative studies, including 715 patients, met the inclusion criteria. The nutritional supplementation group exhibited significant improvement in appendicular skeletal muscle mass (standardized mean difference [SMD]=0.41; 95% confidence interval [CI], 0.24–0.58; p<0.001; I2=1%), while handgrip strength (SMD=0.37; 95% CI, -0.32–1.07; p=0.29; I2=94%) and Short Physical Performance Battery (SPPB) (SMD=0.35; 95% CI, -0.47–1.18; p=0.40; I2=94%) showed a tendency for improvement.
Conclusion
Nutritional supplementation with protein increased appendicular muscle mass in older adults with sarcopenia and improved handgrip strength and SPPB scores.
9.Sulindac-induced Apoptosis without Oligonucleosomal DNA Fragmentation in HT-29 Cells: Its Special References to Mitochondrial Pathway.
Ki Jae PARK ; Yuk KWON ; Sung Heun KIM ; Min Chan KIM ; Hong Jo CHOI ; Young Hoon KIM ; Se Heon CHO ; Ghap Joong JUNG ; Sung Hyun KIM ; Hyuk Chan KWON
Journal of the Korean Society of Coloproctology 2004;20(4):191-198
PURPOSE: This study was undertaken to reveal the molecular mechanism underlying sulindac-induced apoptosis in the human colon cancer cell line HT-29 (mutant p53). METHODS: Apoptosis was determined by using Hoechst 33342 staining, and translocation of proteins was established by using immunofluorescence, immunoelectron microscopy, and Western blotting after ultra- fractionation. RESULTS: This type of apoptosis was associated with decreased mitochondrial membrane potential, a translocation of the apoptosis-inducing factor (AIF) to the nucleus, and morphological evidence of nuclear condensation. However, DNA electrophoresis did not elucidate the ladder pattern of DNA fragments. Instead, a pulse-field gel electrophoresis showed that sulindac led to disintegration of nuclear DNA into-high- molecular-weight DNA fragments of about 100~300 kbp. CONCLUSIONS: Our findings indicate that sulindac induces large-scale DNA fragmentation, suggesting a predominantly AIF-mediated cell-death process, through translocation of the AIF to the nucleus in HT-29 cells.
Apoptosis Inducing Factor
;
Apoptosis*
;
Blotting, Western
;
Cell Line
;
Colonic Neoplasms
;
DNA Fragmentation*
;
DNA*
;
Electrophoresis
;
Fluorescent Antibody Technique
;
HT29 Cells*
;
Humans
;
Membrane Potential, Mitochondrial
;
Microscopy, Immunoelectron
;
Sulindac
10.Development of Protein Chip for Diagnosis of Chlamydophia Pneumoniae.
Woo Jin KIM ; Hui Young LEE ; Seung Joon LEE ; Se Hui JUNG ; Jong Seol YUK ; Kwon Soo HA ; Ki Suck JUNG
Tuberculosis and Respiratory Diseases 2006;60(4):412-418
BACKGROUND: The diagnosis of chlamydial infection is based on serology. The current gold standard of diagnosis is MIF(microimmunofluorescence), but this modality is subjective and time-consuming. Protein microarray with using a SPR(surface plasmon resonance) sensor has recently been suggested as a method for detecting infection. For developing a protein chip to diagnose chlamydial infection, EBs(elementary bodies) were immobilized on a gold chip and the interaction between an antibody for Chlamydophila pneumoniae and the EBs(elementary bodies) immobilized on the surface of the gold chip was measured by using an SPR sensor. METHODS: For the surface antigen, the EBs of Chlamydophila pneumoniae LKK1 were purified. Charged arrays were prepared by using PDDA(polydiallyldimethylammonium chloride) which has a positive charge. After immobilization of the chlamydial EBs on the PDDA surface, the investigation of the surface was done with using atomic force microscopy. After the antibody for C. pneumoniae was applied on chip, we monitored the SPR wavelength-shift to detect any antigen-antibody interaction with using a self-assembled SPR sensor. RESULTS: The chlamydial EBs on the positively charged PDDA were visible on the surface with using atomic force microscopy. The SPR wavelength increased after interaction of antibody for C. pneumoniae with the EBs immobilized on charged gold surface. The wavelength-shift was correlated with the concentration of antigens. CONCLUSION: The surface immobilization of EBs on the gold surface with the charged arrays was identified and the antigen-antibody interaction on the gold chip was detected via the SPR sensor. Further investigations are needed to apply this technique to the clinical field.
Antigens, Surface
;
Chlamydial Pneumonia
;
Chlamydophila pneumoniae
;
Diagnosis*
;
Immobilization
;
Microscopy, Atomic Force
;
Pneumonia*
;
Protein Array Analysis*