1.Hydroa Vacciniforme.
Joo Hyun CHOI ; Seung Kyung HANN ; Moon Soo YOON ; Byung Moon CHOI ; Sung Ku AHN ; Yoon Kee PARK
Annals of Dermatology 1989;1(2):83-86
Hydroa vacciniforme is a very rare photosensitivity disorder. The primary skin lesion is a vesicle or bulla which then heals with vacciniform scarring. We report a case of hydroa vacciniforme recurred after 3 years period of quiescence in a 20 year-old man who had had history of the disease from the age of two. The duplication of the natural lesion, clinically and histologically, was successfully made by artificial UV-A irradiation on the patient's back.
Cicatrix
;
Hydroa Vacciniforme*
;
Photosensitivity Disorders
;
Skin
2.The IL-1 Gene polymorphisms in Korean Children.
Seong Sik YOON ; Hyun Ju CHUNG ; Ok Su KIM ; Ku Ho YANG
The Journal of the Korean Academy of Periodontology 2005;35(2):299-310
The severe form of chronic periodontitis(CP) has been reported to be strongly associated with the presence of allele 2 of composite IL-1B(+3954) and IL-1A(+4845) genetic polymor- phisms(genotype positive). However, other studies have reported conflicting findings. These might have resulted from differences in ethnic background and disease entities. The aim of this study was to determine the distribution of IL-1A(+4845), IL-1B(+3954), IL-1B(-511), and IL-1 RN(VNTR) genetic polymorphisms in children as a future Korean population. The study population consisted of 92 children from the Dept. of Pediatric Den- tistry, Chonnam National University Hospital. Genomic DNA was obtained from buccal swab. The IL-1A(+4845), IL-1B(+3954), and IL-1B(-511) genes were genotyped by amplifying the polymorphic region using multiplex polymerase chain reaction(PCR), followed by restriction enzyme digestion and gel electrophoresis. IL-1 RN(VNTR) polymorphism were then evaluat- ed by PCR amplification and fragment size analysis in agarose gel. The allele 2 frequency was 41.3%, 4.3%, 47.8%, and 9.9% for IL-1A(+4845), IL-1B(+3954), IL-1B(-511), and IL-1 RN respectively. The frequency of genotype with allele 2 carriage for IL-1A(+4845), IL-1B(+3954), IL-1B(-511), and IL-1 RN was 77.1%, 7.6%, 63.0%, and 15.2% respectively. The allele 2 frequency in IL-1B(+3954) was significantly higher in female than in male population(p<0.05). The negative association was shown between the presence of allele 2 in IL-1B(-511) and in IL-1B(+3954), and the carriage rate of IL-1B(+3954) allele 2 tended to lower in IL-1B(-511) allele 2(P=0.056). Only 7.3% of children carried the composite genotype of IL-1A(+4845) and IL-1B(+3954). These results suggest that the polymorphism of IL-1B(+3954) and the positive composite genotype was relatively rare in Korean population.
Alleles
;
Child*
;
Digestion
;
DNA
;
Electrophoresis
;
Female
;
Genotype
;
Humans
;
Interleukin-1*
;
Jeollanam-do
;
Male
;
Polymerase Chain Reaction
;
Polymorphism, Genetic
;
Sepharose
3.Radiologic Findings of Bilateral Elastofibroma Dorsi: A Case Report.
Hyun Jin LIM ; Wan Tae KIM ; Yun Ku CHO ; Yoon Jung KIM
Journal of the Korean Radiological Society 2007;56(3):283-287
Elastofibroma dorsi is a rare, slow-growing, ill defined soft tissue tumor that's typically found between the inferior scapula and chest wall. The characteristic findings on ultrasonography, MRI and CT usually allow the correct diagnosis and so prevent unnecessary surgical procedure. We experienced a case of bilateral elastofibroma dorsi in an 87-year-old man, and we report on this case along with a review of the literature.
Aged, 80 and over
;
Diagnosis
;
Humans
;
Magnetic Resonance Imaging
;
Scapula
;
Thoracic Wall
;
Ultrasonography
4.Assessment of fertilizing capacity of human spertmatozoa using cryopreservated Hamster oocytes.
Myung Geol PANG ; Ku Min CHUNG ; Seok Hyun KIM ; Chang Jae SHIN ; Jung Gu KIM ; Shin Yong MOON ; Jin Yong LEE ; Yoon Seok CHANG
Korean Journal of Fertility and Sterility 1992;19(2):153-162
No abstract available.
Animals
;
Cricetinae*
;
Humans*
;
Oocytes*
5.Semen Analysis in Cancer Patients Referred for Sperm Cryopreservation before Chemotherapy over a 15-Year Period in Korea.
Ja Yoon KU ; Nam Cheol PARK ; Tae Gyeong JEON ; Hyun Jun PARK
The World Journal of Men's Health 2015;33(1):8-13
PURPOSE: This study evaluated the demographics and semen parameters of males with cancer who banked their sperm prior to chemotherapy. MATERIALS AND METHODS: This is a retrospective study of 66 cases referred for sperm banking prior to initiation of chemotherapy over a 15-year period (1999~2014). Patients who had previously received cancer treatment including chemotherapy or radiotherapy were not included in this study. RESULTS: We studied a total of 66 cancer patients referred for cryopreservation of sperm prior to chemotherapy. The mean age of the patients at the time of banking was 32.0+/-7.9 years (range, 19~58 years). The types of cancer were testicular cancer (31 cases, 47.0%), non-Hodgkin's disease (10 cases, 15.1%), Hodgkin's disease (5 cases, 7.6%), leukemia (8 cases, 12.1%), gastrointestinal malignancy (5 cases, 7.6%), and musculoskeletal malignancy (5 cases, 7.6%). There were significant differences in sperm concentration and viability among the various types of cancer, but no significant difference in semen volume or sperm motility and morphology. CONCLUSIONS: In this study we found that sperm quality could decrease even before chemotherapy. Because chemotherapy can also negatively affect spermatogenesis, sperm cryopreservation prior to treatment should be strongly recommended for cancer patients of reproductive age.
Cryopreservation*
;
Demography
;
Drug Therapy*
;
Hodgkin Disease
;
Humans
;
Infertility, Male
;
Korea
;
Leukemia
;
Male
;
Radiotherapy
;
Retrospective Studies
;
Semen
;
Semen Analysis*
;
Sperm Banks
;
Sperm Motility
;
Spermatogenesis
;
Spermatozoa*
;
Testicular Neoplasms
6.A Case of Malignant Melanoma with Pseudoepitheliomatous Hyperplasia on the Sole.
Jong Hyun YOON ; Sang Hyeon KU ; Eun Byul CHO ; Gyeong Hun PARK ; Eun Joo PARK ; In Ho KWON ; Kwang Ho KIM ; Kwang Joong KIM
Korean Journal of Dermatology 2014;52(4):289-291
No abstract available.
Hyperplasia*
;
Melanoma*
7.Local Recurrence of Hepatocellular Carcinoma after Segmental Transarterial Chemoembolization: Risk Estimates Based on Multiple Prognostic Factors.
Seung Hyun PARK ; Yun Ku CHO ; Yong Sik AHN ; Yoon Ok PARK ; Jae Kyun KIM ; Jin Wook CHUNG
Korean Journal of Radiology 2007;8(2):111-119
OBJECTIVE: To determine the prognostic factors for local recurrence of nodular hepatocellular carcinoma after segmental transarterial chemoembolization. MATERIALS AND METHODS: Seventy-four nodular hepatocellular carcinoma tumors < or = 5 cm were retrospectively analyzed for local recurrence after segmental transarterial chemoembolization using follow-up CT images (median follow-up of 17 months, 4-77 months in range). The tumors were divided into four groups (IA, IB, IIA, and IIB) according to whether the one-month follow-up CT imaging, after segmental transarterial chemoembolization, showed homogeneous (Group I) or inhomogeneous (Group II) iodized oil accumulation, or whether the tumors were located within the liver segment (Group A) or in a segmental border zone (Group B). Comparison of tumor characteristics between Group IA and the other three groups was performed using the chi-square test. Local recurrence rates were compared among the groups using the Kaplan-Meier estimation and log rank test. RESULTS: Local tumor recurrence occurred in 19 hepatocellular carcinoma tumors (25.7%). There were: 28, 18, 17, and 11 tumors in Group IA, IB, IIA, and IIB, respectively. One of 28 (3.6%) tumors in Group IA, and 18 of 46 (39.1%) tumors in the other three groups showed local recurrence. Comparisons between Group IA and the other three groups showed that the tumor characteristics were similar. One-, two-, and three-year estimated local recurrence rates in Group IA were 0%, 11.1%, and 11.1%, respectively. The difference between Group IA and the other three groups was statistically significant (p = 0.000). CONCLUSION: An acceptably low rate of local recurrence was observed for small or intermediate nodular tumors located within the liver segment with homogeneous iodized oil accumulation.
Adult
;
Aged
;
Carcinoma, Hepatocellular/*pathology/radiography/*therapy
;
Chemoembolization, Therapeutic/*methods
;
Chi-Square Distribution
;
Female
;
Humans
;
Iodized Oil/administration & dosage
;
Liver Neoplasms/*pathology/radiography/*therapy
;
Male
;
Middle Aged
;
Neoplasm Recurrence, Local/radiography
;
Prognosis
;
Retrospective Studies
;
Risk Factors
;
Tomography, X-Ray Computed
8.Pharmacogenetic Influence of LOC387715/HTRA1 on the Efficacy of Bevacizumab Treatment for Age-Related Macular Degeneration in a Korean Population.
Haeng Ku KANG ; Myung Hun YOON ; Dae Hyun LEE ; Hee Seung CHIN
Korean Journal of Ophthalmology 2012;26(6):414-422
PURPOSE: The purpose of this study was to determine the pharmacogenetic effects of complement factor H (CFH) Y402H, LOC387715 and high-temperature requirement factor A1 (HTRA1) genotypes on the treatment of exudative age-related macular degeneration (AMD) by intravitreal bevacizumab injection in a Korean population. METHODS: Seventy-five patients diagnosed with exudative AMD were treated with intravitreal bevacizumab (2.5 mg) monotherapy. All patients received three initial intravitreal bevacizumab injections every four weeks and were then treated "as needed" based on clinical findings, optical coherence tomography and fluorescein angiography during the 12 month follow-up period after the third injection. RESULTS: The difference in visual acuity improvement among the three genotypes of LOC387715 were statistically significant at six months post-treatment (logarithm of the minimum angle of resolution; TT, 0.346; GT, 0.264; GG, 0.188; p = 0.037). Among the LOC387715 genotypes, the number of additional injections was lower in patients who had the risk T allele (GG, 2.143; GT, 2.000; TT, 1.575; p = 0.064). There was no significant difference between visual acuity and central macular thickness change in the CFH Y402H polymorphism group during the 12 month follow-up period. However, the TC group of CFH Y402H required more additional bevacizumab injections than the TT group (TT, 1.517; TC, 3.363; p = 0.020). CONCLUSIONS: This study demonstrated that different LOC387715/HTRA1 genotypes resulted in different bevacizumab treatment responses on exudative AMD. Patients with the risk allele had an improved treatment response and less need for additional injections. However, patients with the CFH Y402H risk allele needed more additional injections of bevacizumab in order to improve visual acuity. This study illustrates how pharmacogenetic factors may help determine treatment modality and dosing. This could ultimately provide basic data for 'personalized medicine' in AMD.
Aged
;
Alleles
;
Angiogenesis Inhibitors/administration & dosage/therapeutic use
;
Antibodies, Monoclonal, Humanized/*administration & dosage/therapeutic use
;
DNA/*genetics
;
Female
;
Follow-Up Studies
;
Genotype
;
Humans
;
Intravitreal Injections
;
Macular Degeneration/drug therapy/epidemiology/*genetics
;
Male
;
Pharmacogenetics/*methods
;
*Polymorphism, Genetic
;
Retrospective Studies
;
Serine Endopeptidases/*genetics/metabolism
;
Vascular Endothelial Growth Factor A/antagonists & inhibitors
;
Visual Acuity
9.Cryopreservation of Zona-intact/-free Hamster oocytes: effect of 1-step equilibration and 2-step thawing.
Ku Min CHUNG ; Myung Geol PANG ; Seok Hyun KIM ; Chang Jae SHIN ; Jung Gu KIM ; Shin Yong MOON ; Jin Yong LEE ; Yoon Seok CHANG
Korean Journal of Fertility and Sterility 1992;19(2):143-152
No abstract available.
Animals
;
Cricetinae*
;
Cryopreservation*
;
Oocytes*
10.Deep Femoral Vessel Injury Following Subtrochanteric Hip Fracture: A Case Report.
Jae Hyuk YANG ; Jung Ro YOON ; Kyu Bok KANG ; Ho Hyun YUN ; Young Soo SHIN ; Yun Ku CHO
Journal of the Korean Fracture Society 2012;25(1):64-68
Arterial trauma associated with hip fracture treatment is still a rare complication. We present a case in which an arterial injury was discovered during closed reduction and intramedullary nail fixation of a subtrochanteric hip fracture. The preoperative thigh circumference was increased due to severe swelling, and the vascular injury was located substantially proximal to the fracture and the instrumentation area. An interventional angiogram revealed a damaged vessel originating from one of the minor proximal branches of the right deep femoral artery while filling a 2 cm-sized pseudoaneurysm. Embolization was performed without further complications.
Aneurysm, False
;
Femoral Artery
;
Glycosaminoglycans
;
Hip
;
Hip Fractures
;
Nails
;
Thigh
;
Vascular System Injuries