1.Altered Functional Connectivity of the Default Mode Network in Low-Empathy Subjects.
Seung Jun KIM ; Sung Eun KIM ; Hyo Eun KIM ; Kiwan HAN ; Bumseok JEONG ; Jae Jin KIM ; Kee NAMKOONG ; Ji Woong KIM
Yonsei Medical Journal 2017;58(5):1061-1065
Empathy is the ability to identify with or make a vicariously experience of another person's feelings or thoughts based on memory and/or self-referential mental simulation. The default mode network in particular is related to self-referential empathy. In order to elucidate the possible neural mechanisms underlying empathy, we investigated the functional connectivity of the default mode network in subjects from a general population. Resting state functional magnetic resonance imaging data were acquired from 19 low-empathy subjects and 18 medium-empathy subjects. An independent component analysis was used to identify the default mode network, and differences in functional connectivity strength were compared between the two groups. The low-empathy group showed lower functional connectivity of the medial prefrontal cortex and anterior cingulate cortex (Brodmann areas 9 and 32) within the default mode network, compared to the medium-empathy group. The results of the present study suggest that empathy is related to functional connectivity of the medial prefrontal cortex/anterior cingulate cortex within the default mode network. Functional decreases in connectivity among low-empathy subjects may reflect an impairment of self-referential mental simulation.
Empathy
;
Functional Neuroimaging
;
Gyrus Cinguli
;
Magnetic Resonance Imaging
;
Memory
;
Prefrontal Cortex
2.The Relationship between Wheezing during Methacholine Bronchial Challenge and the Severity of Acute Asthma Exacerbation in Asthmatic Children.
Wook NAMKOONG ; Dong Hyun KIM ; Woo Sik JUNG ; Jong Hoon KWAK ; Dae Hyun LIM ; Jeong Hee KIM ; Byong Kwan SON
Pediatric Allergy and Respiratory Disease 2009;19(1):28-37
PURPOSE:Global Initiatives for Asthma (GINA guideline) 2005 suggests that the pitch and intensity of wheezing as the determinating factor for the severity of asthma exacerbation. However, there have not yet been sufficient data to support the correlation between wheezing and the severity of asthma exacerbation. This study was aimed to estimate the relationship between wheezing threshold and the level of forced expiratory volume in 1 second (FEV1). METHODS:Among 370 pediatric patients who visited Inha University Hospital between May 2005 and June 2006, who underwent the methacholine bronchial challenge tests in order to diagnose asthma, 228 patients with PC20 less than 16 mg/mL were examined. Medical history, physical examination, skin prick test, eosinophil count and total IgE level in peripheral blood, and nasal smear for eosinophil count were performed. RESULTS:Among the 228 patients 127 (55.7%) showed wheezing during the methacholine challenge test. Among the patient with wheezing 82 patients (36%) showed more than 20% fall of FEV1, and the other, 45 patients (19.7%), showed less than 20% FEV1%fall. One hundred one patients (43.3 %) did not show any wheezing until the %fall of FEV1 was below 20%. The geometric mean (range of 1SD) [2.29 (0.86-6.13) mg/mL] of methacholine PC20 of the 127 patients with wheezing was significantly lower than that [4.11 (1.82-9.24) mg/mL] of the 101 patients without wheezing (P<0.001). The geometric mean (range of 1SD) of methacholine PC20 in the 143 patients with positive skin prick test results was 2.57 (0.97-6.81) mg/mL, which was significantly lower than that of the 37 patients with negative results [3.69 (1.57-8.66) mg/mL] (P<0.001). CONCLUSION:We could learn that most wheezing patients showed more than 20% fall of FEV1. Therefore, it is suggested that the asthmatic children with wheezing were regarded and treated as moderate or more severe state
Asthma
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Bronchial Provocation Tests
;
Child
;
Eosinophils
;
Forced Expiratory Volume
;
Humans
;
Immunoglobulin E
;
Methacholine Chloride
;
Physical Examination
;
Respiratory Sounds
;
Skin
3.A Case of Primary Hyperparathyroidism in Child Presented with Acute Abdominal Pain.
Wook NAMKOONG ; In Suh PARK ; Bok Ki KIM ; Sin Young PARK ; Soo Ho JEONG ; Sun Ki KIM ; Byong Kwan SON ; Ji Eun LEE
Journal of Korean Society of Pediatric Endocrinology 2008;13(2):198-202
Primary Hyperparathyroidism is the metabolism abnormality of calcium, phosphate, and bone due to the high synthesis of parathyroid hormone, a rare endocrine disease in children. It scarcely occurs in children so that till now it was reported only 4 cases in Korea, especially with abdominal symptoms. We report this case of primary hyperparathyroidism with brief review of literatures.
Abdominal Pain
;
Calcium
;
Child
;
Endocrine System Diseases
;
Humans
;
Hyperparathyroidism, Primary
;
Korea
;
Parathyroid Hormone
;
Parathyroid Neoplasms
4.The Increasing Frequency of Cervical Cancer in Korean Women under 35.
Chan Hee HAN ; Hyun Jung CHO ; Sung Jong LEE ; Jeong Hoon BAE ; Seog Nyen BAE ; Sung Eun NAMKOONG ; Jong Sup PARK
Cancer Research and Treatment 2008;40(1):1-5
PURPOSE: The goal of this study was to determine the clinical and epidemiological trends of cervical cancer in young Korean women. Social behavior including sexual habits has changed in Korean women, with sexual activity commencing at a younger age. These changes are likely to influence certain risk factors of cervical cancer, resulting in changing trends in the occurrence of the disease. MATERIALS AND METHODS: The incidence of cervical cancer in women less than 35 years-old between January 1990 and December 2006 was analyzed, and available medical records from January 1996 to December 2006 were reviewed. The clinical, pathological and epidemiologic characteristics and changing trends among these young patients were analyzed. RESULTS: Over the last two decades, the incidence of young (< 35 years) cervical cancer patients increased, more patients had an aggressive form of the disease, and there was a higher rate of women with more advanced education. Human papillomavirus (HPV) infection was detected in 94.0% of the women (63/67) tested. HPV 16 (82.5%) and HPV 18 (12.7%) were the two most common viral infections detected throughout the study period. CONCLUSIONS: The changing trends and risk factors identified suggest a need for more active education of young women about cervical cancer prevention strategies. In addition, young women are strongly recommended to undergo a regular screening test and HPV vaccination.
Female
;
Human papillomavirus 16
;
Human papillomavirus 18
;
Humans
;
Incidence
;
Mass Screening
;
Medical Records
;
Risk Factors
;
Sexual Behavior
;
Social Behavior
;
Uterine Cervical Neoplasms
;
Vaccination
5.Adjuvant therapy in high-risk early endometrial carcinoma: a retrospective analysis of 46 cases.
Jin Hwi KIM ; Sung Jong LEE ; Jeong Hoon BAE ; Sung Ha LEE ; Seog Nyeon BAE ; Sung Eun NAMKOONG ; Jong Sup PARK
Journal of Gynecologic Oncology 2008;19(4):236-240
OBJECTIVE: We assessed the prognostic factors and the efficacy of adjuvant therapy and reviewed randomized studies carried out on patients receiving adjuvant therapy with early endometrial carcinoma. METHODS: One hundred and five patients that received primary surgical treatment for stage IB, IC and II endometrial cancer were enrolled in this study. The clinical outcomes were compared among the patients with variable prognostic factors and adjuvant treatments. RESULTS: One hundred and five patients fulfilled the eligibility criteria and 46 patients (43.8%) underwent adjuvant therapy. Disease recurrence occurred in nine patients within a median time of 24 months. Cervical involvement was an independent prognostic factor for the disease-free survival rates. Eight of 16 patients with FIGO stage II disease received adjuvant chemotherapy consisting of cisplatin and etoposide (or cyclophosphamide) or combined chemoradiation. The 5-year disease-free survival rate for these patients was 87.5%, a value significantly higher than for patients that received radiation therapy alone (30%). CONCLUSION: Adjuvant chemotherapy or combination chemo-radiotherapy might be superior to radiation therapy alone in high-risk early endometrial cancer patients.
Chemotherapy, Adjuvant
;
Cisplatin
;
Disease-Free Survival
;
Endometrial Neoplasms
;
Etoposide
;
Female
;
Humans
;
Recurrence
;
Retrospective Studies
6.Adjuvant therapy in high-risk early endometrial carcinoma: a retrospective analysis of 46 cases.
Jin Hwi KIM ; Sung Jong LEE ; Jeong Hoon BAE ; Sung Ha LEE ; Seog Nyeon BAE ; Sung Eun NAMKOONG ; Jong Sup PARK
Journal of Gynecologic Oncology 2008;19(4):236-240
OBJECTIVE: We assessed the prognostic factors and the efficacy of adjuvant therapy and reviewed randomized studies carried out on patients receiving adjuvant therapy with early endometrial carcinoma. METHODS: One hundred and five patients that received primary surgical treatment for stage IB, IC and II endometrial cancer were enrolled in this study. The clinical outcomes were compared among the patients with variable prognostic factors and adjuvant treatments. RESULTS: One hundred and five patients fulfilled the eligibility criteria and 46 patients (43.8%) underwent adjuvant therapy. Disease recurrence occurred in nine patients within a median time of 24 months. Cervical involvement was an independent prognostic factor for the disease-free survival rates. Eight of 16 patients with FIGO stage II disease received adjuvant chemotherapy consisting of cisplatin and etoposide (or cyclophosphamide) or combined chemoradiation. The 5-year disease-free survival rate for these patients was 87.5%, a value significantly higher than for patients that received radiation therapy alone (30%). CONCLUSION: Adjuvant chemotherapy or combination chemo-radiotherapy might be superior to radiation therapy alone in high-risk early endometrial cancer patients.
Chemotherapy, Adjuvant
;
Cisplatin
;
Disease-Free Survival
;
Endometrial Neoplasms
;
Etoposide
;
Female
;
Humans
;
Recurrence
;
Retrospective Studies
7.Cortical Information Transmission during Tic Suppression in Boys with Tourette's Disorder.
Hyun Ju HONG ; Minho CHA ; Kang CHOI ; Sun Hee WHANG ; Yukyoung SO ; Min Kyung CHU ; Kee NAMKOONG ; Jaeseung JEONG
Journal of Korean Neuropsychiatric Association 2007;46(1):71-78
OBJECTIVES: Tourette's Disorder (TD) is a chronic neuropsychiatric disorder characterized by multiple motor and vocal tics with onset in childhood. The aim of this study was to ascertain the increased cortical information transmission in frontal area during tic suppression in drug naive boys with TD using new nonlinear analysis of EEGs, be called Transfer Entropy (TE) which can detect the directed exchange of information between two systems. METHODS: Subjects were 11 drug naive boys with DSM-IV diagnosis of TD and 10 control boys. Clinical assessments were performed, and EEGs were recorded from 19 scalp loci of the international 10-20 systems. TE was estimated by EEG timeseries data after noise reduction. TE difference between TD and control during resting state and between tic suppression and resting state in TD were investigated. RESULTS: Elevated TE was found in extensive channels, including frontal, central and temporal channels (F7, Fz, F8,Cz, C3, P3, T3, and T4) in resting state of Tourette's disorder compared to normal controls. During tic suppression elevated TE was found in more extensive and asymmetrical channels especially prefrontal area (Fp1, Fp2, F3, Fz, F7, F8, Cz, C4, C5, T3, and T4). CONCLUSION: These findings suggest that pathogenesis of Tourette's disorder involve impaired cortical neuronal modulation in subcortical neural circuits. EEG analysis of TE may be a useful tool to investigation of cortical mechanism of psychiatric illness.
Diagnosis
;
Diagnostic and Statistical Manual of Mental Disorders
;
Electroencephalography
;
Entropy
;
Neurons
;
Noise
;
Scalp
;
Tics*
;
Tourette Syndrome*
8.Retraction: Comparison of As2O3 and As4O6 in the Detection of SiHa Cervical Cancer Cell Growth Inhibition Pathway.
Yong Wook KIM ; Su Mi BAE ; Keun Ho LEE ; Joon Mo LEE ; Sung Eun NAMKOONG ; Insu P LEE ; Chong Kook KIM ; Jeong Sun SEO ; Jeong Im SIN ; Yong Wan KIM ; Woong Shick AHN
Cancer Research and Treatment 2007;39(1):47-47
No abstract available.
Uterine Cervical Neoplasms*
9.A Study on Relapse Predictors in Korean Alcohol-Dependent Patients: A 24 Weeks Follow up Study.
Cheol Min KIM ; Sung Gon KIM ; Kee NAMKOONG ; Dong Hwan CHO ; Byung Ook LEE ; Ihn Geun CHOI ; Min Jeong KIM
Journal of the Korean Society of Biological Psychiatry 2007;14(4):249-255
OBJECTIVES: The aim of this prospective study is to investigate predictors estimating relapse in Korean alcohol-dependent patients using variables like alcohol history, drinking craving, treatment motivation and insight. METHODS: Alcohol dependent patients(N=48) who completed questionnaires about sociodemographic variables and drinking history, Timeline Follow-Back(TLFB), Obsessive-Compulsive Drinking Scale(OCSD), Alcohol Urge Questionnaire(AUQ), Pennsylvania Alcohol Craving Scale(PACS), University of Rhode Island Change Assessment(URICA), Hanil Alcohol Insight Scale(HAIS) were followed-up for 24weeks. Subjects who drank heavily(5 standard drinking or more/day) or were not followed up anymore were classified as the relapse group. We used logistic regression analysis with backward elimination of SPSS PC+11.5 to investigate relapse estimate predictors. RESULTS: Average drinking amount per drinking day for last 1 year and HAIS score were predictors of relapse in alcohol-dependent patients. CONCLUSIONS: Our findings suggest that therapist should give more attention to alcohol-dependent patients who had more drinks per drinking day for last 1 year and had lower insight level.
Alcoholism
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Drinking
;
Follow-Up Studies*
;
Humans
;
Logistic Models
;
Motivation
;
Pennsylvania
;
Prospective Studies
;
Recurrence*
;
Rhode Island
10.Greater Impairment in Negative Emotion Evaluation Ability in Patients with Paranoid Schizophrenia.
Suk Kyoon AN ; Eun LEE ; Jae Jin KIM ; Kee NAMKOONG ; Jee In KANG ; Jong Hee JEON ; Jeong Ho SEOK ; Sung Hwan CHOI
Yonsei Medical Journal 2006;47(3):343-353
To explore whether or not patients with schizophrenia display a more profound impairment of negative emotion processing, we assessed the implicit evaluation of positive and negative emotional stimuli. Twenty patients with schizophrenia (9 paranoid, 11 non-paranoid) and 22 normal controls were instructed to classify emotional pictures according to the intrinsic valence if the pictures were black and white. If the stimuli were color-filtered, participants were instructed to press the positive/negative response key according to the extrinsic valence (assigned valence of color). The error rates of the color-filtered stimuli were used as dependent measures. Normal controls made more errors on trials of the positive pictures when the correct response was the negative response key than when the correct response was the positive response key. The reverse was true on trials of the negative pictures. Patients with schizophrenia, especially paranoid schizophrenia, committed more errors in trials of the positive pictures when the correct response key was the negative response key. However, the reverse was not true on trials of the negative pictures. These findings suggest that patients with paranoid schizophrenia might suffer from an impaired ability to evaluate negative emotions and have a loosening of association within their negative emotional networks.
Visual Perception
;
*Schizophrenic Psychology
;
Schizophrenia, Paranoid/*physiopathology/*psychology
;
Mental Processes
;
Male
;
Humans
;
Female
;
*Emotions
;
*Affect
;
Adult

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