1.Change of volume of isoflow in pneumoconiosis patients with small opacity.
Sang Yong OH ; Jee Won KIM ; Chang Young JUNG ; Kyung Ah KIM ; Im Goung YUN
Tuberculosis and Respiratory Diseases 1993;40(5):540-547
No abstract available.
Humans
;
Pneumoconiosis*
2.The clinical and statistical study of obstetrical cases (1981-1990).
Won Ki OH ; Seon Tae KIM ; Dong Ho KIM ; Hun Jung IM
Korean Journal of Obstetrics and Gynecology 1993;36(7):1400-1406
No abstract available.
Statistics as Topic*
3.Ten cases of congenital anomalies diagnosed by prenatal ultrasonography.
Keun Hyeoung LEE ; Won Ki OH ; Sun Tae KIM ; Kwang Wook LEE ; Hun Jung IM
Korean Journal of Obstetrics and Gynecology 1991;34(12):1760-1775
No abstract available.
Ultrasonography, Prenatal*
5.Metastatic Angiosarcoma of the Lung: HRCT Findings.
Mi Young KIM ; Byung Sung LIM ; Mee Hye OH ; Jung Gi IM
Journal of the Korean Radiological Society 1999;40(3):493-496
We describe a case of cavitary metastasis to the lungs from a small angiosarcoma of the scalp, in which themetastatic lesions were complicated by pneumothorax and pulmonary hemorrhage. On high-resolution CT, the lesionssimulated the findings of Langerhans cell histiocytosis. Thin-walled cavitary metastatic lesions were similar tothose of thin walled air cysts in Langerhans cell histiocytosis. Ground-glass opacity simulated the findings ofsmoke r's respiratory bronchiolitis in Langerhans cell histio-cytosis but histologically represented hemorrhageduring metastasis of the angiosarcoma.
Bronchiolitis
;
Hemangiosarcoma*
;
Hemorrhage
;
Histiocytosis, Langerhans-Cell
;
Lung*
;
Neoplasm Metastasis
;
Pneumothorax
;
Sarcoma
;
Scalp
8.How Long Could the Enhancement of Facial Nerve Last in Bell’s Palsy?
Hyeon Seo OH ; So Dam GIL ; Jung Im SEOK
Korean Journal of Neuromuscular Disorders 2024;16(1):10-13
Background:
The brain magnetic resonance imaging (MRI) findings seen in patients with Bell's palsy are abnormal contrast enhancement of affected facial nerves. Previous evaluation included mainly patients who had experienced palsy for several weeks and there are no studies to date on patients with late stage of Bell’s palsy. This study investigated the findings of MRI of Bell's palsy after 3 months of symptom onset to assess how long the enhancement last.
Methods:
Among the patients with Bell's palsy (idiopathic unilateral facial palsy) who visited the hospital, 9 patients who underwent contrast-enhanced MRI of the internal auditory canal after 3 months of symptom onset were reviewed retrospectively. MRI examination results were investigated along with the patient's clinical symptoms and electrodiagnostic test results. Based on the MRI results, the frequency of abnormal contrast enhancement and contrast-enhanced areas were investigated.
Results:
9 patients were included. 6 of them did MRI imaging because of incomplete recovery of facial palsy and the others did because of complication of facial palsy including synkinesis and hemifacial spasm. Time interval between symptom onset and evaluation was 17 months (3-84). Of 9 patients, 2 showed abnormal enhancement of affected nerve and they performed MRI after 5 months and 12 months of symptom onset, respectively.
Conclusions
Abnormal enhancement of facial nerve in Bell’s palsy could last up to one year. This awareness can be helpful in interpretation of MRI of Bell’s palsy.
9.Assessment of Epicardial Fat Volume With Threshold-Based 3-Dimensional Segmentation in CT: Comparison With the 2-Dimensional Short Axis-Based Method.
Mi Jung PARK ; Jung Im JUNG ; Yong Seog OH ; Ho Joong YOUN
Korean Circulation Journal 2010;40(7):328-333
BACKGROUND AND OBJECTIVES: We aimed to assess the usefulness of a threshold-based, 3-dimensional (3D) segmentation in comparison with the traditional 2-dimensional (2D) short axis-based method for measurement of epicardial fat volume with 64-slice multidetector computed tomography (MDCT). SUBJECTS AND METHODS: One hundred patients (52 males; mean age, 58.36+/-11.0 years) who underwent coronary CT angiography were enrolled in this study. The epicardial fat volume was measured using the two methods. The existing method was the 2D short axis-based method and the new method was the threshold-based 3D segmentation. Pearson's correlation was used to compare the two measurement methods. We also assessed the relationship between the epicardial fat volume and coronary artery disease (CAD). RESULTS: There were a strong correlation between the epicardial fat volumes determined using the two methods (r=0.956, p<0.001). The mean overestimation of epicardial fat volume by the threshold-based 3D method was 59.89+/-12.00% compared to the 2D short-axis based method. Using the 3D method, the epicardial fat volume was significantly higher in the CAD group than in the controls (165.07+/-48.22 cm3 vs. 108.39+/-48.03 cm3, p<0.001). CONCLUSION: Threshold-based 3D segmentation is another easy and useful tool for measuring the epicardial fat volume.
Angiography
;
Coronary Artery Disease
;
Humans
;
Intra-Abdominal Fat
;
Multidetector Computed Tomography
;
Pericardium
;
Tomography, X-Ray Computed
10.Lentinula edodes extract inhibits matrix metalloproteinase expression and increases typeⅠprocollagen expression via the p38 MAPK/c-Fos signaling pathway in ultraviolet A and B-irradiated HaCaT keratinocytes
Im-Jung LEE ; Hwan-Jung OH ; Fatih KARADENIZ ; Young-So PARK ; Ran-Hye KIM ; Jin-Hyun JO ; Im-Kyung JUNG ; Byung-Jin JEON ; Chang-Suk KONG
Asian Pacific Journal of Tropical Biomedicine 2021;11(4):164-173
Objective:To determine the effect of Lentinula edodes extract on ultraviolet (UV) A and UVB-induced changes in matrix metalloproteinase (MMP) and typeⅠprocollagen expression using human immortalized HaCaT keratinocytes. Methods:Lentinula edodes ethanol extract (LEE) was obtained by extraction with 80% ethanol for 4 h at 80 ℃. Effect of LEE on UV-induced alteration on the expression and production of MMPs and typeⅠprocollagen in keratinocytes was investigated using ELISA, RT-PCR, and Western blotting assay. To determine the underlying mechanism of LEE-mediated effects, mitogen-activated protein kinase (MAPK) and activator protein 1 signaling pathways were analysed by Western blotting assay. Results:LEE significantly inhibited the expression of MMP-1 and MMP-9 and increased the expression of typeⅠprocollagen in UVA and UVB-irradiated HaCaT keratinocytes. The phosphorylation levels of p38 were significantly inhibited by LEE whereas it did not affect c-Jun N-terminal kinase and extracellular signal-regulated kinase phosphorylation. Suppression of p38 phosphorylation was also accompanied by downregulation of UVA and UVB-induced increase in c-Fos. Conclusions:LEE effectively inhibits the expression of MMP-1 and MMP-9 and increases typeⅠprocollagen production through the p38 MAPK/c-Fos signaling pathway in UVA and UVB-irradiated HaCaT keratinocytes. This findings suggest that Lentinula edodes may be developed as a cosmetic material to suppress UV exposure-mediated skin aging.