1.Expression and use of Truncated Recombimnant Flagellin Protein ( FlaB ) in ELISA for Diagnosis of Leptospirosis.
Cheon Kwon YOO ; Myo Ah PAIK ; Hae Kyung LEE ; Man Suck PARK ; Mi Yeoun PARK
Journal of the Korean Society for Microbiology 2000;35(5):365-365
No Abstract Available.
Diagnosis*
;
Enzyme-Linked Immunosorbent Assay*
;
Flagellin*
;
Leptospirosis*
2.Clinical characteristics of meningitis in adults.
Sun Ah PARK ; Hwa Young CHEON ; Il Saing CHOI
Journal of the Korean Neurological Association 1997;15(5):1050-1063
The meningitis occur within a closed anatomic space, so they have many similar clinical features and characteristic CSF abnormalities. But the temporal profile of many meningitis is distinctive from aseptic meningitis with spontaneous remission to bacterial or tuberculous meningitis with fatal outcome without treatment. Therefore early accurate differential diagnosis is required. The development of diagnostic tools and treatment, and increase of immunodeficient state and resistant pathogens have changed the distribution of main pathogens of meningitis from the past. Therefore we analyzed 241 medical records with final diagnosis as 'infectious meningitis' to evaluate the distribution of pathogens in Korea and any differential points of clinical, laboratory, and radiologic, profile according to etiology. 1. The etiologic distributions were followings, Aseptic meningitis in 100 patient(41.5%), tuberculous meningitis in 58 patients(24.1%), bacterial meningitis in 48 patients(19.9%), and fungal in 16 patients(6.6%). 2. The intense seasonal occurrence was noted in aseptic meningitis with summer. 3. Fever and headache were noted in almost all patients Altered mental status were noted in 39.6% of bacterial meningitis, 53.41% of tuberculous meningitis but not in fungal and aseptic meningitis. Meningeal irritation signs were noted in less patients(25%) with fungal meningitis but in more with aseptic, bacterial or tuberculous meningitis m 52-66.7%. Most of all focal neurologic signs were present in bacterial or tuberculous meningitis. 4. Many immunocompromized patients had fungal meningitis, three of which showed normal CSF leukocyte counts And it pointed up the importance of intensive etiologic evaluation in immunodeficient patients with clinically suspected symptoms of meningitis. 5. CSF findings at admission were following. CSF leukocytes were mean 206-258/yL in aseptic, tuberculous or fungal meningitis. But in bacterial meningitis leukocyte counts were greater than 1,000/mL in mom than half of patients. The differential counts of leukocytes were monocyte predominant except in bacterial meningitis. The reductions of CSF sugar were noted in bacterial, tuberculous, or fungal meningitis. Characteristically all patients with extremely low CSF sugar(less than 10mg/dL) had bacterial meningitis. 6. The most frequent pathologic findings in neuroimaging study were hydrocephalus(20patients: 9.1%) and meningeal enhancement(19patient,: 8.6%). Small enhancing mass(8patients: 3.6%.) and focal infarction(8patients: 3.6%) were noted less frequently. These abnormal radiologic findings were noted in 2 patients(2.0%) with aseptic meningitis, 15 patients(38.7%) with bacterial meningitis, 29 patients(50.0%) with tuberculous meningitis and 5 patients(35.7%) with fungal meningitis.
Adult*
;
Diagnosis
;
Diagnosis, Differential
;
Fatal Outcome
;
Fever
;
Headache
;
Humans
;
Korea
;
Leukocyte Count
;
Leukocytes
;
Medical Records
;
Meningitis*
;
Meningitis, Aseptic
;
Meningitis, Bacterial
;
Meningitis, Fungal
;
Monocytes
;
Neuroimaging
;
Neurologic Manifestations
;
Remission, Spontaneous
;
Seasons
;
Tuberculosis, Meningeal
4.Apoptosis signal-regulating kinase 1 (ASK1) is linked to neural stem cell differentiation after ischemic brain injury.
Juhyun SONG ; Kyoung Joo CHO ; So Yeong CHEON ; Sa Hyun KIM ; Kyung Ah PARK ; Won Taek LEE ; Jong Eun LEE
Experimental & Molecular Medicine 2013;45(12):e69-
Neural stem cells (NSCs) have been suggested as a groundbreaking solution for stroke patients because they have the potential for self-renewal and differentiation into neurons. The differentiation of NSCs into neurons is integral for increasing the therapeutic efficiency of NSCs during inflammation. Apoptosis signal-regulating kinase 1 (ASK1) is preferentially activated by oxidative stress and inflammation, which is the fundamental pathology of brain damage in stroke. ASK1 may be involved in the early inflammation response after stroke and may be related to the differentiation of NSCs because of the relationship between ASK1 and the p38 mitogen-activated protein kinase pathway. Therefore, we investigated whether ASK1 is linked to the differentiation of NSCs under the context of inflammation. On the basis of the results of a microarray analysis, we performed the following experiments: western blot analysis to confirm ASK1, DCX, MAP2, phospho-p38 expression; fluorescence-activated cell sorting assay to estimate cell death; and immunocytochemistry to visualize and confirm the differentiation of cells in brain tissue. Neurosphere size and cell survival were highly maintained in ASK1-suppressed, lipopolysaccharide (LPS)-treated brains compared with only LPS-treated brains. The number of positive cells for MAP2, a neuronal marker, was lower in the ASK1-suppressed group than in the control group. According to our microarray data, phospho-p38 expression was inversely linked to ASK1 suppression, and our immunohistochemistry data showed that slight upregulation of ASK1 by LPS promoted the differentiation of endogenous, neuronal stem cells into neurons, but highly increased ASK1 levels after cerebral ischemic damage led to high levels of cell death. We conclude that ASK1 is regulated in response to the early inflammation phase and regulates the differentiation of NSCs after inflammatory-inducing events, such as ischemic stroke.
Animals
;
Cell Death
;
Infarction, Middle Cerebral Artery/*metabolism
;
Lipopolysaccharides/pharmacology
;
MAP Kinase Kinase Kinase 5/genetics/*metabolism
;
Male
;
Mice
;
Mice, Inbred C57BL
;
Microtubule-Associated Proteins/genetics/metabolism
;
Neural Stem Cells/cytology/drug effects/*metabolism
;
*Neurogenesis
;
Neuropeptides/genetics/metabolism
;
p38 Mitogen-Activated Protein Kinases/genetics/metabolism
5.Colorectal Cancer Presenting as an Early Recurrence Within 1 Year after a Curative Resection.
Sang Hun JUNG ; Hee Cheol KIM ; Ah Young KIM ; Pyong Wha CHOI ; In Ja PARK ; Chang Sik YU ; Jin Cheon KIM
Journal of the Korean Society of Coloproctology 2008;24(4):265-272
PURPOSE: An individualized surveillance protocol based on stratified prognostic factors is needed for the early detection of recurrent disease. The aim of this study was to determine both the clinicopathological characteristics for early-recurring colorectal cancer and the impact on survival. METHODS: From January 1996 to September 2000, 1,504 patients with curatively resected colorectal cancer were recruited. The primary goal of this study was to evaluate the time interval until first loco-regional or distant recurrence, and the secondary goal was the last survival status. Early recurrence was defined as recurrence within the first 12 months postoperatively. Clinicopathologic data and preoperative CT records were reviewed. The follow-up period was over 48 months. RESULTS: The 5-year recurrence rate was 25.4%, and 39.5% of these were detected within the first 12 months postoperatively. In the multivariate analysis, the independent prognostic factors for early recurrence were cell differentiation (PD/MUC/SRC), lymphovascular invasion, and absence of adjuvant chemotherapy in stage III and curatively resected colorectal cancer in stage IV. Inaccurate interpretation by a low-quality CT scan resulted in a stage III cancer being understaged preoperatively. The 5-year overall survival rate according to the recurrent time interval was significantly different (early recurrence: 7.4% vs. late recurrence: 23.6%, P<0.05). The resection rate was similar in both groups (early recurrence: 22.7% vs. late recurrence: 27.6%, P=0.392). CONCLUSIONS: Colorectal cancer that recurred within 12 months showed more aggressive biologic behaviors and poor survival. Understaging caused by incomplete preoperative evaluation for disease extension may cause treatment failure.
Cell Differentiation
;
Chemotherapy, Adjuvant
;
Colorectal Neoplasms
;
Follow-Up Studies
;
Humans
;
Multivariate Analysis
;
Recurrence
;
Survival Rate
;
Treatment Failure
6.Factors Related to Depressive Symptoms Among the Elderly in Urban and Rural Areas.
Jong Cheon LEE ; Jung Ah PARK ; Nam Kyou BAE ; Young Chae CHO
Journal of Agricultural Medicine & Community Health 2008;33(2):204-220
OBJECTIVES: This study was performed to determine the levels of depression symptoms among the community elderlies and to reveal its related factors, specifically aimed at revealing psycho-social factors such as social support net-work, sense of self-esteem, state anxiety, interpersonal behavior trait and locus of control. METHODS: The interviews were performed during the period from April 1st to June 30th, 2007 to the 790 elderlies in urban and rural areas. RESULTS: The mean scores of depression (CES-D) among all subjects were 16.65+/-10.97(urban: 18.81+/-10.31, rural: 14.49+/-11.20) and they were higher in urban than rural. The level of depression symptoms was influenced by the variables of educational level, with or without spouse, bear for living expenses, sense of satisfaction in daily life. As for health related behaviors, they were influenced by the variables of with or without regular exercise. As for health status, they were influenced by the subjective health status, with or without disability of body, visual acuity, hearing ability, ability of food mastication, urinary incontinence, with or without help in activity of daily living (ADL) and instrumental activity of daily living (IADL). As for social support net-work and social activities, they were influenced by number of offspring, frequency of offspring contents, frequency of going out and activity of hobbies. As for psycho-social factors, they were influenced by sense of self-esteem, state anxiety and social support, especially, the level of depression symptoms was higher influenced by the variables of psycho-social factors than other variables. CONCLUSIONS: Lower of the level of depression symptoms among the community elderlies would require development and application of programs to keep under management psycho-social factors as well as looking for ways to promoting the present health status.
Aged
;
Anxiety
;
Depression
;
Hearing
;
Hobbies
;
Humans
;
Internal-External Control
;
Mastication
;
Self Concept
;
Spouses
;
Urinary Incontinence
;
Ursidae
;
Visual Acuity
7.Association between Dopamine D4 Receptor Gene Polymorphism and Scores on a Continuous Performance Test in Korean Children with Attention Deficit Hyperactivity Disorder.
Bora KIM ; Min Seong KOO ; Jin Yong JUN ; Il Ho PARK ; Dong Yul OH ; Keun Ah CHEON
Psychiatry Investigation 2009;6(3):216-221
OBJECTIVE: The aim of this study was to evaluate the association between a variable number of tandem repeats polymorphism at the dopamine D4 receptor gene (DRD4) and the performance of children with attention deficit hyperactivity disorder (ADHD) in a continuous performance test (CPT). METHODS: This study included 72 ADHD children (mean age=9.39+/-2.05 years) who were recruited from one child psychiatric clinic. The omission errors, commission errors, reaction time and reaction standardization in the CPT were computed. The number of 48-base pairs tandem repeats in the exon III of DRD4 was analyzed in a blind manner. RESULTS: The homozygosity of the 4-repeat allele at DRD4 was significantly associated with fewer commission errors (t=2.364, df=28.685, p=0.025) and standard deviation of reaction time (t=2.351, df=24.648, p=0.027) even after adjusting for age. The results of analyses of CPT measured values among three groups showed that the group with higher frequency of the 4-repeat allele showed a lower mean score of commission errors (F=4.268, df=2, p=0.018). CONCLUSION: These results suggest a protective role of 4-repeat allele of the DRD4 polymorphisms on commission errors in the CPT in children with ADHD.
Alleles
;
Attention Deficit Disorder with Hyperactivity
;
Child
;
Dopamine
;
Exons
;
Humans
;
Minisatellite Repeats
;
Reaction Time
;
Receptors, Dopamine D4
;
Tandem Repeat Sequences
8.The Relationship of Alcohol Use and Stress.
Jin Yong JUN ; Dong Yul OH ; Min Seong KOO ; Jun Seok LEE ; Keun Ah CHEON ; Woong Sub PARK ; Sang A KIM
Journal of Korean Neuropsychiatric Association 2006;45(4):343-348
OBJECTIVES: This study was designed to assess the relationship between alcohol use and stress. METHODS: The study subjects were 1,261 people who drink among the 2,565 people who lived in Gangneung. We investigated the sociodemographic characteristics, Short Form-12 (SF-12), Global Assessment of Recent Stress (GARS) and Alcohol Use Disorder Identification Test (AUDIT). RESULTS: In Problem drinking group the GARS was significantly positively associated with the AUDIT (p=0.02). In Social drinking group sex (p<0.001) and age (p=0.02) is significantly associated with the AUDIT. CONCLUSION: This study showed the significantly positively association between stress and alcohol use. We think that the intervention and active management of the stress can prevent the alcohol problem.
Drinking
;
Gangwon-do
9.Patients who leave the emergency department against medical advice.
Choung Ah LEE ; Joon Pil CHO ; Sang Cheon CHOI ; Hyuk Hoon KIM ; Ju Ok PARK
Clinical and Experimental Emergency Medicine 2016;3(2):88-94
OBJECTIVE: Discharge against medical advice (DAMA) from the emergency department (ED) accounts for 0.1% to 2.7% of all ED discharges. DAMA carries a risk of increased mortality and readmissions. Our aim was to investigate the general characteristics of DAMA patients and the differences between them and non-DAMA patients. METHODS: We reviewed data collected by the National Emergency Medical Center between 2010 and 2011. Subjects were categorized into 2 groups, namely, the DAMA group and the non-DAMA group. We compared these groups with respect to age, gender, trauma or non-trauma status, type of hospital, health insurance, level of consciousness on admission, and diagnosis. RESULTS: Of 8,000,529 patients, 222,389 (2.78%) left against medical advice. The risk factors for DAMA across all age groups were as follows: no medical insurance (odds ratio [OR], 1.993), initial response to voice (OR, 2.753) or pain (OR, 2.101), trauma admission (OR, 1.126), admission to a local emergency medical center (OR, 1.215), and increased age. A high risk of DAMA was observed among patients with immune, endocrine, psychiatric, neurological, circulatory diseases, and external causes of morbidity and mortality. CONCLUSION: Although DAMA cases account for only a small percentage of hospital discharges, they are important because DAMA patients have high readmission and mortality rates. It is therefore important to understand the general characteristics and predictors of DAMA in order to improve patient outcome and minimize the economic burden on the healthcare system.
Consciousness
;
Delivery of Health Care
;
Diagnosis
;
Emergencies*
;
Emergency Service, Hospital*
;
Humans
;
Insurance
;
Insurance, Health
;
Mortality
;
Organization and Administration
;
Patient Discharge
;
Risk Factors
;
Voice
10.The effect of hypothalamic involvement and growth hormone treatment on cardiovascular risk factors during the transition period in patients with childhood-onset craniopharyngioma
Sang Hee PARK ; Yun Jeong LEE ; Jung-Eun CHEON ; Choong Ho SHIN ; Hae Woon JUNG ; Young Ah LEE
Annals of Pediatric Endocrinology & Metabolism 2023;28(2):107-115
Purpose:
Hypothalamic damage may increase the risk of adulthood obesity and cardiovascular disease in patients with craniopharyngioma. We evaluated the effects of hypothalamic involvement (HI) and growth hormone (GH) discontinuation on cardiovascular risk factors during the transition period in patients with childhood-onset craniopharyngioma.
Methods:
Thirty-three patients (17 males, 16 females) underwent retesting for adult GH deficiency (GHD) between 2005 and 2020 at Seoul National University Children's Hospital. Postoperative HI was graded by Puget's criteria and data regarding GH replacement were collected. At retesting, body mass index (BMI), fasting blood glucose, insulin, high-density lipoprotein cholesterol (HDL-C), triglycerides, and blood pressure were assessed.
Results:
The mean age of commencement and discontinuation of GH replacement for childhood GHD was 10.0±3.6 and 15.3±3.1 years, respectively. The mean age at retesting for adult GHD was 17.7±2.5 years. When patients were categorized by post-GH discontinuation duration, those with durations >6 months (n=27) showed lower HDL-C levels than those with <6 months (P=0.037). Patients with extensive HI (n=16) had higher BMI z-scores than did those with no HI or mild HI (P=0.020). Both the extent of HI and longer post-GH discontinuation duration were significantly predictive for decreased HDL-C levels (P<0.05, for both).
Conclusion
The extent of HI and GH discontinuation duration during the transition period can increase cardiovascular risks in patients with childhood-onset craniopharyngioma.