1.Initial results of adenoma culture for adenoma-carcinoma continuum in the colorectal tumor.
Jin Cheon KIM ; Kyoo Yeon PARK ; Kun Choon PARK ; Jae Dam LEE
Journal of the Korean Cancer Association 1992;24(2):218-226
No abstract available.
Adenoma*
;
Colorectal Neoplasms*
2.Applicability of DMH-induced colorectal tumor model in respect to carcinogenesis.
Jin Cheon KIM ; Gyeong Yeop GONG ; Kyoo Yeon PARK ; Byung Sik KIM ; Kun Choon PARK ; In Chul LEE
Journal of the Korean Cancer Association 1992;24(2):239-248
No abstract available.
Carcinogenesis*
;
Colorectal Neoplasms*
3.Measles Specific IgG Antibody Level of Term Pregnant Women and Neonatal Umbilical Cords.
Hee Yeon PARK ; Young Kyoo SHIN ; Ji Tae CHOUNG ; Young Chang TOCKGO
Journal of the Korean Pediatric Society 1996;39(9):1224-1230
PURPOSE: Despite appropriate preventive measures, measles outbreaks occurred in the year of 1989-1990 and 1994 in Korea. Especially, the ratio of young infantile patients below 15 months old was high in those outbreaks, and the reason was, we thought, low serum level of measles specific IgG antibody in pregnant women and low transplacental transfer rate of measles specific IgG antibody to neonate. This study was performed to evaluate the serum level of measles specific IgG antibody in term pregnant women- neonate pairs. METHODS: During Oct. 1. 1994 to Mar. 31. 1995, we collected the 44 paired sera of term pregnant women and their neonate(umbilical cord) in Anam hospital of Korea university medical center and then we measured the measles specific IgG antibody using enzyme linked immunosorbent assay(ELISA: Sigma Diagnostics, SIATM Measles IgG Kit). RESULTS: 1) There was close relationship between maternal and neonatal umbilical cord sera in the level of measles specific IgG antibody(r=0.9288, p<0.001). 2) The mean antibody level of neonates was higher than that of mothers by 1.4 times (p<0.05). 3) The seropositivity of measles specific IgG antibody in term pregnant women was 45.5%(20/44) and that of neonatal umbilical cord was 56.8%(25/44). CONCLUSIONS: Above results demonstrates that the seropositivities and levels of measles specific IgG antibody in term pregnant women and neonates were lower than expected value and partially explain the reasons for the recent measles epidemic in Korea.
Academic Medical Centers
;
Disease Outbreaks
;
Female
;
Humans
;
Immunoglobulin G*
;
Infant
;
Infant, Newborn
;
Korea
;
Measles*
;
Mothers
;
Pregnant Women*
;
Umbilical Cord*
4.Simultaneous placement of an interpositional free gingival graft with nonsubmerged implant placement.
Joo Yeon SOHN ; Jung Chul PARK ; Kyoo Sung CHO ; Chang Sung KIM
Journal of Periodontal & Implant Science 2014;44(2):94-99
PURPOSE: Various surgical techniques target achieving adequate keratinized tissue around dental implants; however, these techniques are usually performed before implant placement or upon the exposure of submerged implants. The aim of this case report is to describe a simultaneous placement of an interpositional free gingival graft (iFGG) with that of nonsubmerged implants in a patient lacking keratinized tissue and to assess the long-term outcome of this grafted gingiva. METHODS: A wedge-shaped free gingnival graft (FGG), including an epithelium-connective tissue (E-C) portion and a connective-tissue-only (CT) portion, was harvested from the palate. The CT portion was inserted under the buccal flap, and the E-C portion was secured tightly around the implants and to the lingual flap. RESULTS: At the 8-year follow-up, the gingival graft remained firmly attached and was well maintained, with no conspicuous shrinkage or reported discomfort during oral hygiene procedures. The use of an iFGG at a nonsubmerged implant placement minimizes the required number of surgical steps and patient discomfort while providing adequate buccal keratinized tissue. CONCLUSIONS: Therefore, the technique could be considered an alternative method in increasing the keratinized tissue for cases that have a minimal amount of keratinized tissue.
Dental Implants
;
Follow-Up Studies
;
Gingiva
;
Humans
;
Oral Hygiene
;
Palate
;
Transplants*
5.Traumatic Brain Injury in Children under Age 24 Months: Analysis of Demographic Data, Risk Factors, and Outcomes of Post-traumatic Seizure.
Sang Youl YOON ; Yeon Ju CHOI ; Seong Hyun PARK ; Jeong Hyun HWANG ; Sung Kyoo HWANG
Journal of Korean Neurosurgical Society 2017;60(5):584-590
OBJECTIVE: Traumatic brain injury (TBI) in children under age 24 months has characteristic features because the brain at this age is rapidly growing and sutures are opened. Moreover, children this age are completely dependent on their parents. We analyzed the demographic data and risk factors for outcomes in TBI patients in this age group to elucidate their clinical characteristics. METHODS: We retrospectively reviewed the medical records and radiological films of children under 24 months who were admitted to Kyungpook National University Hospital from January 2004 to December 2013 for TBI. Specifically, we analyzed age, cause of injury, initial Glasgow coma scale (GCS) score, radiological diagnosis, seizure, hydrocephalus, subdural hygroma, and Glasgow outcome scale (GOS) score, and we divided outcomes into good (GOS 4–5) or poor (GOS 1–3). We identified the risk factors for post-traumatic seizure (PTS) and outcomes using univariate and multivariate analyses. RESULTS: The total number of patients was 60, 39 males and 21 females. Most common age group was between 0 to 5 months, and the median age was 6 months. Falls were the most common cause of injury (n=29, 48.3%); among them, 15 were falls from household furniture such as beds and chairs. Ten patients (16.7%) developed PTS, nine in one week; thirty-seven patients (61.7%) had skull fractures. Forty-eight patients had initial GCS scores of 13–15, 8 had scores of 12–8, and 4 had scored 3–7. The diagnoses were as follows: 26 acute subdural hematomas, 8 acute epidural hematomas, 7 focal contusional hemorrhages, 13 subdural hygromas, and 4 traumatic intracerebral hematomas larger than 2 cm in diameter. Among them, two patients underwent craniotomy for hematoma removal. Four patients were victims of child abuse, and all of them had PTS. Fifty-five patients improved to good-to-moderate disability. Child abuse, acute subdural hematoma, and subdural hygroma were risk factors for PTS in univariate analyses. Multivariate analysis found that the salient risk factor for a poor outcome was initial GCS on admission. CONCLUSION: The most common cause of traumatic head injury in individuals aged less than 24 months was falls, especially from household furniture. Child abuse, moderate to severe TBI, acute subdural hematoma, and subdural hygroma were risk factors for PTS. Most of the patients recovered with good outcomes, and the risk factor for a poor outcome was initial mental status.
Accidental Falls
;
Brain
;
Brain Injuries*
;
Child Abuse
;
Child*
;
Contusions
;
Craniocerebral Trauma
;
Craniotomy
;
Demography
;
Diagnosis
;
Family Characteristics
;
Female
;
Glasgow Coma Scale
;
Glasgow Outcome Scale
;
Gyeongsangbuk-do
;
Hematoma
;
Hematoma, Subdural, Acute
;
Hemorrhage
;
Humans
;
Hydrocephalus
;
Infant
;
Interior Design and Furnishings
;
Male
;
Medical Records
;
Multivariate Analysis
;
Parents
;
Retrospective Studies
;
Risk Factors*
;
Seizures*
;
Skull Fractures
;
Subdural Effusion
;
Sutures
6.Gender Difference in Association with Socioeconomic Status and Incidence of Metabolic Syndrome in Korean Adults
Jeong Mi SEO ; Nam Kyoo LIM ; Joong Yeon LIM ; Hyun Young PARK
Korean Journal of Obesity 2016;25(4):247-254
BACKGROUND: The prevalence of metabolic syndrome in Korean is gradually increasing. Metabolic syndrome shows different patterns depending on gender and socioeconomic status. We investigated the differences in incidence of metabolic syndrome according to gender and socioeconomic status using a community cohort of middle-aged Korean. METHODS: The study included 5,544 subjects (2,733 men and 2,811 women) aged 40-69 years without metabolic syndrome, diabetes, or history of cardiovascular disease at baseline. The incidence of metabolic syndrome was estimated according to gender and socioeconomic status, and the association between socioeconomic status and incidence of metabolic syndrome was examined using Cox's proportional hazard regression analysis. RESULTS: The incidence density of metabolic syndrome was 53/1,000 person-years in men and 52/1,000 person-years in women during the mean follow-up period of 6.01 years. After adjusting for common risk factors, the hazard ratios (HRs) for metabolic syndrome for those with high, middle, and elementary school education levels compared to the college graduate or higher group (referent) were 1.07 (95% CI, 0.76-1.51), 1.73 (95% CI, 1.23-2.44), and 1.74 (95% CI, 1.23-2.46) in women, respectively, and compared to the more than 400 (10,000 won) group (referent), the HRs for metabolic syndrome according to income level were 1.56 (95% CI, 1.06-2.29), 1.86 (95% CI, 1.28-2.71), and 2.74 (95% CI, 1.87-4.00) in women, respectively. However, the association between socioeconomic status and incidence of metabolic syndrome was not significant in men. CONCLUSION: The association between incident metabolic syndrome and socioeconomic status was significant in middle-aged Korean women.
Adult
;
Cardiovascular Diseases
;
Cohort Studies
;
Education
;
Female
;
Follow-Up Studies
;
Humans
;
Incidence
;
Male
;
Prevalence
;
Risk Factors
;
Social Class
7.A Case of Suspected Danon Disease Presenting as a Hypertrophic Cardiomyopathy.
So Yeon PARK ; Dae Gyun PARK ; Hyun Hee CHOI ; Duck Hyoung YOON ; Sung Eun KIM ; Jun Hee LEE ; Kyoo Rok HAN ; Dong Jin OH
Journal of Cardiovascular Ultrasound 2009;17(1):28-30
Danon disease is characterized clinically by the triad of cardiomyopathy, myopathy and mental retardation. It was originally reported as a lysosomal glycogen storage disease with normal acid maltase by Danon. Danon disease results from mutations in lysosome associated membrane protein-2 (LAMP-2) gene. The LAMP-2 gene is located on Xq24-25. We report a case of suspected Danon disease in patient who had hypertrophic cardiomyopathy and mental retardation along with abnormal findings in electromyography.
alpha-Glucosidases
;
Cardiomyopathies
;
Cardiomyopathy, Hypertrophic
;
Glycogen Storage Disease
;
Glycogen Storage Disease Type IIb
;
Humans
;
Intellectual Disability
;
Lysosomes
;
Membranes
;
Muscular Diseases
8.Spontaneous healing capacity of rabbit cranial defects of various sizes.
Joo Yeon SOHN ; Jung Chul PARK ; Yoo Jung UM ; Ui Won JUNG ; Chang Sung KIM ; Kyoo Sung CHO ; Seong Ho CHOI
Journal of Periodontal & Implant Science 2010;40(4):180-187
PURPOSE: This study evaluated the spontaneous healing capacity of surgically produced cranial defects in rabbits with different healing periods in order to determine the critical size defect (CSD) of the rabbit cranium. METHODS: Thirty-two New Zealand white rabbits were used in this study. Defects of three sizes (6, 8, and 11 mm) were created in each of 16 randomly selected rabbits, and 15-mm defects were created individually in another 16 rabbits. The defects were analyzed using radiography, histologic analysis, and histometric analysis after the animal was sacrificed at 2, 4, 8, or 12 weeks postoperatively. Four samples were analyzed for each size of defect and each healing period. RESULTS: The radiographic findings indicated that defect filling gradually increased over time and that smaller defects were covered with a greater amount of radiopaque substance. Bony islands were observed at 8 weeks at the center of the defect in both histologic sections and radiographs. Histometrical values show that it was impossible to determine the precise CSD of the rabbit cranium. However, the innate healing capacity that originates from the defect margin was found to be constant regardless of the defect size. CONCLUSIONS: The results obtained for the spontaneous healing capacity of rabbit cranial defects over time and the underlying factors may provide useful guidelines for the development of a rabbit cranial model for in vivo investigations of new bone materials.
Animals
;
Islands
;
Rabbits
;
Research Design
;
Skull
;
Wound Healing
9.Cognitive Dysfunctions in Patients With Severe Obstructive Sleep Apnea Syndrome: Neuropsychological Test and Event-Related Potential Study.
Dong Kyoo LEE ; Hee Jung PARK ; Sun Hwa KIM ; Jae Wook CHO ; Eun Yeon JOO ; Ki Young JUNG ; Seung Bong HONG
Journal of the Korean Neurological Association 2008;26(4):333-340
BACKGROUND: Patients with obstructive sleep apnea syndrome (OSAS) show variety of dysfunctions in cognitions including general cognitive function, attention, and frontal lobe and executive function. However, there is no consensus on the main features of the cognitive dysfunction in OSAS patients. So we performed neuropsychological tests and event-related potential (ERP) studies in patients with severe OSAS to evaluate the cognitive dysfunctions and changes of auditory and visual P300. METHODS: Twenty-eight men with severe OSAS (apnea hypopnea index (AHI)=63.1+/-17.8/hr) and 16 age, sex, education- matched normal controls (AHI=2.9+/-1.8/hr) underwent neuropsychological tests and ERP studies. RESULTS: Patients with severe OSAS showed deficits in corsi block forward and backward test during neuropsychological evaluation, and delayed latency and decreased amplitude of auditory P300. There were significant correlations between auditory P300 amplitudes and digit span forward or corsi block forward test scores, and between visual P300 amplitudes and digit symbol test scores. CONCLUSIONS: These findings suggest that severe OSAS patients may have deficits in attention and short-term memory, and abnormal auditory P300.
Cognition
;
Consensus
;
Evoked Potentials
;
Executive Function
;
Frontal Lobe
;
Humans
;
Male
;
Memory, Short-Term
;
Neuropsychological Tests
;
Sleep Apnea, Obstructive
10.A Study of Menarche and Dysfunctional Uterine Bleeding in Adolescent School Girls in Ansan City.
Yeon Kyeong JUNG ; Jae Hee SOH ; Dae Hun PEE ; Young Kyoo SHIN ; Kee Hyoung LEE ; Baik Lin EUN ; Sang Hee PARK
Journal of the Korean Pediatric Society 2002;45(1):16-23
PURPOSE: We investigated the menstrual features of adolescent school girls to know the characteristics of menarche and dysfunctional uterine bleeding in adolescents. METHODS: In March, 2001, 1,434 primary and middle school girls(10-15 years of age) in Ansan City were investigated for the menacheal age and several aspects of menstruation through questionnaire. RESULTS: Mean age of the total subjects were 13.0+/-1.2 years of age, and 68.4% of them experienced menarche. 32.2% experienced menarche after age 12, but 82.9% experienced it after age 13. Mixed type(regular and irregular) menstrual cycle was the most common(35.3%), and changing type(irregular to regular) was 27.6%. In changing type, the mean duration of cycle stabilization was 6.6+/-4.9 months. The most common menstrual cycle was 'within 26-30 days'(31.4%). Abnormal cycles such as 'equal or less than 20 days' and 'equal or more than 41 days' were 17.2% and 2.0%, respectively. The most common menstrual duration was '5-6 days'(44.7%). 7.6% of the subjects experienced short or long menstrual duration. Among the subjects, only 4.0% visited the hospital with menstrual problems. The visiting reasons were 'irregular menstrual cycles'(38.5%), 'dysmenorrhea'(28.2%), 'menorrhagia'(12.8%), and 'hypermenorrhea'(28.2%). CONCLUSION: Most adolescent girls in our study experienced menarche until 13 years of age and some of them got early menarche at the age of 9. Many of them had irregular or unstable menstrual cycles after menarche at any age, but only few of them visited a health care provider. We suggest the careful attention of pediatricians, parents and teachers to the early detection and proper treatment of menstrual problems in adolescent girls.
Adolescent*
;
Female
;
Female*
;
Gyeonggi-do*
;
Health Personnel
;
Humans
;
Menarche*
;
Menstrual Cycle
;
Menstruation
;
Metrorrhagia*
;
Parents
;
Surveys and Questionnaires