1.Comparison of Heart Rate Variability Indices between Obstructive Sleep Apnea Syndrome and Primary Insomnia.
Ji Won NAM ; Doo Heum PARK ; Jaehak YU ; Seung Ho RYU ; Ji Hyeon HA
Sleep Medicine and Psychophysiology 2012;19(2):68-76
OBJECTIVES: Sleep disorders cause changes of autonomic nervous system (ANS) which affect cardiovascular system. Primary insomnia (PI) makes acceleration of sympathetic nervous system (SNS) tone by sleep deficiency and arousal. Obstructive sleep apnea syndrome (OSAS) sets off SNS by frequent arousals and hypoxemias during sleep. We aimed to compare the changes of heart rate variability (HRV) indices induced by insomnia or sleep apnea to analyze for ANS how much to be affected by PI or OSAS. METHODS: Total 315 subjects carried out nocturnal polysomnography (NPSG) were categorized into 4 groups - PI, mild, moderate and severe OSAS. Severity of OSAS was determined by apnea-hypopnea index (AHI). Then we selected 110 subjects considering age, sex and valance of each group's size [Group 1 : PI (mean age=41.50+/-13.16 yrs, AHI <5, n=20), Group 2 : mild OSAS (mean age=43.67+/-12.11 yrs, AHI 5-15, n=30), Group 3 : moderate OSAS (mean age 44.93+/-12.38 yrs, AHI 16-30, n=30), Group 4 : severe OSAS (mean age=45.87+/-12.44 yrs, AHI >30, n=30)]. Comparison of HRV indices among the four groups was performed with ANCOVA (adjusted for age and body mass index) and Sidak post-hoc test. RESULTS: We found statistically significant differences in HRV indices between severe OSAS group and the other groups (PI, mild OSAS and moderate OSAS). And there were no significant differences in HRV indices among PI, mild and moderate OSAS group. In HRV indices of PI and severe OSAS group showing the most prominent difference in the group comparisons, average RR interval were 991.1+/-27.1 and 875.8+/-22.0 ms (p=0.016), standard deviation of NN interval (SDNN) was 85.4+/-6.6 and 112.8+/-5.4 ms (p=0.022), SDNN index was 57.5+/-5.2 and 87.6+/-4.2 (p<0.001), total power was 11,893.5+/-1,359.9 and 18,097.0+/-1,107.2 ms2 (p=0.008), very low frequency (VLF) was 7,534.8+/-1,120.1 and 11,883.8+/-912.0 ms2 (p=0.035), low frequency (LF) was 2,724.2+/-327.8 and 4,351.6+/-266.9 ms2 (p=0.003). CONCLUSIONS: VLF and LF which were correlated with SNS tone showed more increased differences between severe OSAS group and PI group than other group comparisons. We could suggest that severe OSAS group was more influential to increased SNS activity than PI group.
Acceleration
;
Anoxia
;
Arousal
;
Autonomic Nervous System
;
Cardiovascular System
;
Heart
;
Heart Rate
;
Polysomnography
;
Sleep Apnea Syndromes
;
Sleep Apnea, Obstructive
;
Sleep Wake Disorders
;
Sleep Initiation and Maintenance Disorders
;
Sympathetic Nervous System
2.Identification of parasite DNA in common bile duct stones by PCR and DNA sequencing.
Ji Sun JANG ; Kyung Ho KIM ; Jae Ran YU ; Soo Ung LEE
The Korean Journal of Parasitology 2007;45(4):301-306
We attempted to identify parasite DNA in the biliary stones of humans via PCR and DNA sequencing. Genomic DNA was isolated from each of 15 common bile duct (CBD) stones and 5 gallbladder (GB) stones. The patients who had the CBD stones suffered from cholangitis, and the patients with GB stones showed acute cholecystitis, respectively. The 28S and 18S rDNA genes were amplified successfully from 3 and/or 1 common bile duct stone samples, and then cloned and sequenced. The 28S and 18S rDNA sequences were highly conserved among isolates. Identity of the obtained 28S D1 rDNA with that of Clonorchis sinensis was higher than 97.6%, and identity of the 18S rDNA with that of other Ascarididae was 97.9%. Almost no intra-specific variations were detected in the 28S and 18S rDNA with the exception of a few nucleotide variations, i.e., substitution and deletion. These findings suggest that C. sinensis and Ascaris lumbricoides may be related with the biliary stone formation and development.
Aged
;
Aged, 80 and over
;
Animals
;
Ascaridida/genetics/isolation & purification
;
Ascaris lumbricoides/genetics/isolation & purification
;
Base Sequence
;
Clonorchis sinensis/genetics/isolation & purification
;
Common Bile Duct/*parasitology
;
DNA, Helminth/*genetics
;
DNA, Ribosomal/genetics
;
Face/parasitology
;
Female
;
Gallbladder/parasitology
;
Gallstones/*parasitology
;
Helminths/genetics/*isolation & purification
;
Humans
;
Male
;
Middle Aged
;
Molecular Sequence Data
;
Polymerase Chain Reaction/*methods
;
RNA, Ribosomal, 18S/genetics
;
RNA, Ribosomal, 28S/genetics
;
Sequence Alignment
3.The Change of Heart Rate Variability in Anxiety Disorder after Given Physical or Psychological Stress.
Min Kyung CHO ; Doo Heum PARK ; Jaehak YU ; Seung Ho RYU ; Ji Hyeon HA
Sleep Medicine and Psychophysiology 2014;21(2):69-73
OBJECTIVES: This study was designed to assess the change of heart rate variability (HRV) at resting, upright, and psychological stress in anxiety disorder patients. METHODS: HRV was measured at resting, upright, and psychological stress states in 60 anxiety disorder patients. We used visual analogue scale (VAS) score to assess tension and stress severity. Beck depression inventory (BDI) and state trait anxiety inventories I and II (STAI-I and II) were used to assess depression and anxiety severity. Differences between HRV indices were evaluated using paired t-tests. Gender difference analysis was accomplished with ANCOVA. RESULTS: SDNN (Standard deviation of normal RR intervals) and low frequency/high frequency (LF/HF) were significantly increased, while NN50, pNN50, and normalized HF (nHF) were significantly decreased in the upright position compared to resting state (p < 0.01). SDNN, root mean square of the differences of successive normal to normal intervals, and LF/HF were significantly increased, while nHF was significantly decreased in the psychological stress state compared to resting state (p < 0.01). SDNN, NN50, pNN50 were significantly lower in upright position compared to psychological stress and nVLF, nLF, nHF, and LF/HF showed no significant differences between them. CONCLUSION: The LF/HF ratio was significantly increased after both physical and psychological stress in anxiety disorder, but did not show a significant difference between these two stresses. Significant differences of SDNN, NN50, and pNN50 without any differences of nVLF, nLF, nHF, and LF/HF between two stresses might suggest that frequency domain analysis is more specific than time domain analysis.
Anxiety
;
Anxiety Disorders*
;
Autonomic Nervous System
;
Depression
;
Equipment and Supplies
;
Heart Rate*
;
Humans
;
Stress, Psychological*
4.Prostatic Mucinous Adenocarcinoma.
Korean Journal of Urology 1986;27(6):949-951
Prostatic carcinoma is a disease of aging and the precise cause is until unknown. Most of the prostatic carcinomas are adenocarcinoma of tubuloalveolar or acinar origin. We report a rare case of metastatic mucinous adenocarcinoma to the seminal vesicle and testis with brief review of literature.
Adenocarcinoma
;
Adenocarcinoma, Mucinous*
;
Aging
;
Mucins*
;
Seminal Vesicles
;
Testis
5.Clinical Effect of Renal Angioinfarction in Renal Cell Carcinoma.
Korean Journal of Urology 1988;29(1):16-22
Renal arterial embolization has been utilized in the treatment of renal tumor since Lalli and associates introduced angioinfarction of kidney in 1996. To determine whether preoperative infarction facilitated an operation in the patients with renal cell carcinoma we compared 5 patients that were managed by standard radical nephrectomy to 7 patients in that preoperative infarction and radical nephrectomy had been used. And we performed infarction in 2 patients of inoperable renal cancer for conservative primary management. After we had performed infarction of kidney in 3 dogs experimentally, a total of 9 patients with renal cell carcinoma underwent angioinfarction of kidney at our department of urology. Radical nephrectomy was performed in 7 of total 9 patients. Complete cessation of renal arterial flow could be demonstrated in all cases and subsequent surgical dissection was facilitated after angioinfarction. We concluded that renal angioinfarction reduce the volume and vascularity of the tumor and because the resulting edema sharpens the tissue planes, it makes surgical resection easy and it is also useful therapeutic method in the patients with renal cell carcinoma who were not surgical candidates.
Animals
;
Carcinoma, Renal Cell*
;
Dogs
;
Edema
;
Humans
;
Infarction
;
Kidney
;
Kidney Neoplasms
;
Nephrectomy
;
Urology
6.A Case of Varicella in Pregnancy by Using Polymerase Chain Reaction
Seok Hyun HAN ; Ji Hyun KIM ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2018;56(1):72-73
No abstract available.
Chickenpox
;
Polymerase Chain Reaction
;
Pregnancy
7.A Case of Coexistence of Disseminated Superficial Porokeratosis with Porokeratosis of Mibelli.
Ji Hyun KIM ; Seok Hyun HAN ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2018;56(3):220-221
No abstract available.
Porokeratosis*
8.Difference in Anxiety Sensitivity Among Anxiety Disorder Groups.
Jun Beom AN ; Ji Hae KIM ; Eun Ho KANG ; Bum Hee YU
Journal of Korean Neuropsychiatric Association 2009;48(4):240-246
OBJECTIVES : The present study aimed to compare anxiety sensitivity among anxiety disorder groups, and to examine the relationships between lower-order factors of anxiety sensitivity and each anxiety disorder. METHODS : Three hundred and twenty four normal control subjects and 212 patients with anxiety disorders were enrolled in this study. All subjects completed a psychometric assessment package including the Korean Anxiety Sensitivity Index-Revised (ASI-R) test. Statistical analysis of the two groups was performed using the Mann-Whitney U test, and comparison of anxiety sensitivity amongthe anxiety-disorder groups (panic disorder-PD, general anxiety disorder-GAD, social phobia- SP, obsessive-compulsive disorder-OCD) was investigated using Kruskal-Wallis test. RESULTS : All anxiety disorder groups showed higher total scores of the ASI-R than did the normal control group (Z=-13.724, p<.001), and the mean total score of the ASI-R in the panic disorder group was the highest among the anxiety disorder groups. The mean score of each lower-order factor of the ASI-R in each anxiety disorder group was higher than that of the normal control group and there were statistically significant differences in fear of cardiovascular symptoms (PD,GAD>SP,OCD), fear of respiratory symptoms (PD>GAD, SP,OCD), and fear of publicly observable anxiety reactions (SP>PD,OCD) among the anxiety disorder groups. CONCLUSION : These results suggest that anxiety sensitivity reflects vulnerability to anxiety disorders, and that lower-order factors of the ASI-R may help in the differential diagnosis of anxiety disorders.
Anxiety
;
Anxiety Disorders
;
Diagnosis, Differential
;
Humans
;
Panic Disorder
;
Psychometrics
9.Difference in Anxiety Sensitivity Among Anxiety Disorder Groups.
Jun Beom AN ; Ji Hae KIM ; Eun Ho KANG ; Bum Hee YU
Journal of Korean Neuropsychiatric Association 2009;48(4):240-246
OBJECTIVES : The present study aimed to compare anxiety sensitivity among anxiety disorder groups, and to examine the relationships between lower-order factors of anxiety sensitivity and each anxiety disorder. METHODS : Three hundred and twenty four normal control subjects and 212 patients with anxiety disorders were enrolled in this study. All subjects completed a psychometric assessment package including the Korean Anxiety Sensitivity Index-Revised (ASI-R) test. Statistical analysis of the two groups was performed using the Mann-Whitney U test, and comparison of anxiety sensitivity amongthe anxiety-disorder groups (panic disorder-PD, general anxiety disorder-GAD, social phobia- SP, obsessive-compulsive disorder-OCD) was investigated using Kruskal-Wallis test. RESULTS : All anxiety disorder groups showed higher total scores of the ASI-R than did the normal control group (Z=-13.724, p<.001), and the mean total score of the ASI-R in the panic disorder group was the highest among the anxiety disorder groups. The mean score of each lower-order factor of the ASI-R in each anxiety disorder group was higher than that of the normal control group and there were statistically significant differences in fear of cardiovascular symptoms (PD,GAD>SP,OCD), fear of respiratory symptoms (PD>GAD, SP,OCD), and fear of publicly observable anxiety reactions (SP>PD,OCD) among the anxiety disorder groups. CONCLUSION : These results suggest that anxiety sensitivity reflects vulnerability to anxiety disorders, and that lower-order factors of the ASI-R may help in the differential diagnosis of anxiety disorders.
Anxiety
;
Anxiety Disorders
;
Diagnosis, Differential
;
Humans
;
Panic Disorder
;
Psychometrics
10.The Change of Cortical Activity Induced by Visual Disgust Stimulus.
Wook JUNG ; Doo Heum PARK ; Jae Hak YU ; Seung Ho RYU ; Ji Hyeon HA ; Byoung Hak SHIN
Sleep Medicine and Psychophysiology 2013;20(2):75-81
OBJECTIVES: There are a lot of studies that analyze the interaction between the emotion of disgust and the functional brain images using fMRI and PET. But studies using sLORETA (standardized low resolution brain electromagnetic tomography) almost do not exist. The aim of this research is to explore the relationship of the emotion of disgust and the cortical activation using sLORETA analysis. METHODS: Forty five healthy young adults (27.1+/-2.6 years) participated in the study. While they were watching 4 neutral images and 4 disgusting images associated with mutilation selected from the international affective picture system (IAPS), participants' EEGs were taken for 30 seconds per one picture. Through these obtained EEG data, sLORETA analysis was performed to compare EEGs associated with neutral and negative images. RESULTS: During looking for visual disgusting stimulus, all participants reported unpleasantness, arousal and stress. In sLORETA analysis, the decrease of current density in theta wave was shown at left frontal superior gyrus (BA10) and middle gyrus (BA10, 11). This voxel cluster consists of a total of 11 voxels and the threshold of t value indicating statistically significant decreases in the current density (p<0.05) was -1.984. There were no differences between male and female in the degree of being disgusted by the stimuli. CONCLUSION: This finding may suggest that the activation of dorsolateral prefrontal cortex might be associated with regulating disgust emotion.
Arousal
;
Brain
;
Electroencephalography
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Magnets
;
Male
;
Prefrontal Cortex
;
Young Adult