1.Expression of p53 and Matrix Metalloproteinase-2 Proteins in Colorectal Adenocarcinoma.
Seong Jin CHO ; Hwa Eun OH ; Yang Seok CHAE
Korean Journal of Pathology 2000;34(7):494-500
The p53 gene is believed to play an important role through the mutation and overexpression in the progression of various human malignant tumors. The type IV collagenase (matrix metalloproteinase: MMP-2) initiates the degradation of the extracellular matrix, and consequently may play a role in the tumor invasion and metastasis. To investigate the correlation between clinicopathologic features of the colorectal adenocarcinomas and benign tumors and expression of p53 and MMP-2 proteins, we performed an immunohistochemical study on 40 colorectal adenocarcinomas, 20 adenomas and 20 hyperplastic polyps by using the antibodies to p53 and MMP-2 proteins. The positive expression rate of the p53 protein in adenocarcinomas was 62.5% and significantly higher than in benign tumors. The positive expression rate of the MMP-2 protein was 47.5% in adenocarcinomas, but there was no expression of MMP-2 protein in benign tumors. The difference in p53 and MMP-2 expression rates between malignant and non-malignant tumors was statistically significant. The positive expression rate of p53 protein in the non-metastatic and metastatic adenocarcinomas was 59.1 and 66.7%, respectively. The positive expression rate of MMP-2 protein in the non-metastatic and metastatic adencarcinomas was 45.5 and 50.0%, respectively. The correlation between several clinicopathologic features and expression of p53 and MMP-2 protein was not statistically significant, but the rate of positive MMP-2 immunoreactivity showed a statistically significant difference between Astler-Coller stage B1 C1 group and B2 C2 group of adenocarcinoma (p=0.0431). We concluded that the expression of p53 and MMP-2 protein contributes to the cancer development and MMP-2 may play a certain role in the invasiveness of the colorectal tumor. p53 and MMP-2 protein expression is not correlated with lymph node metastasis.
Adenocarcinoma*
;
Adenoma
;
Antibodies
;
Collagenases
;
Colorectal Neoplasms
;
Extracellular Matrix
;
Genes, p53
;
Humans
;
Lymph Nodes
;
Matrix Metalloproteinase 2*
;
Neoplasm Metastasis
;
Polyps
2.A Case of Infantile Tinea Capitis Treated with Oral Fluconazole.
Soo Hyeon NOH ; Ga Hye NA ; Jin Kyung CHAE ; Kun PARK ; Eun Jung KIM
Korean Journal of Dermatology 2017;55(8):539-540
No abstract available.
Fluconazole*
;
Tinea Capitis*
;
Tinea*
3.A Case of Neutrophilic Dermatosis of the Dorsal Hands.
Sang Hyun PARK ; Jin Kyung CHAE ; Eun Jung KIM ; Kun PARK ; Seok Don PARK
Korean Journal of Dermatology 2015;53(2):166-167
No abstract available.
Hand*
;
Neutrophils*
;
Skin Diseases*
;
Sweet Syndrome
4.A Clinical Observation on Traumatic Urethral Injury.
Korean Journal of Urology 1983;24(1):83-87
A clinical observation was made on 31 cases of traumatic urethral injury in the Department of Urology, Wonju Christian Hospital, during the period from March 1979 to June 1982. The results were as follows: 1. The rate of the urethral injury to total genitourinary tract was 46.3%. 2. Age distribution of urethral injury was the highest in the age of 21-10 (54.8%). 3. In anterior urethral injury, the most common cause was industrial accident (63.6%), the mode of injury was blunt injury (46.5%). In posterior injury, the most common cause was traffic accident (40.0%), the mode of injury was blunt injury (80%). 4. Results from the present study show that the perineal end-to-end anastomosis performed primarily or secondarily showed higher success rate (75%)than other procedures.
Accidents, Occupational
;
Accidents, Traffic
;
Age Distribution
;
Gangwon-do
;
Urology
;
Wounds, Nonpenetrating
5.A Novel Method to Measure Superior Migration of the Humeral Head: Step-off of the C-line.
Kyoung Jin PARK ; Hyeon Jun EUN ; Yong Min KIM ; Jun Il YOO ; Chae Ouk LIM
Clinics in Shoulder and Elbow 2016;19(3):125-129
BACKGROUND: Superior migration of humeral head has been conventionally determined by measuring the acromiohumeral distance (AHD), We sought to devise a novel measurement system more reliably and accurately than AHD. We described a structural landmark called 'C-line'. In this study, we investigated the clinical usefulness of 'step-off of the C-line (SOC)' compared to that of AHD. METHODS: The C-line formed from the medial margin of the proximal humeral head continuing up to the inferior margin of the articular glenoid and then to the lateral border of the scapula. The superior migration of the humeral head triggered by a rotator cuff tear introduces a discontinuity in this C-line. We measured the distance of this discontinuity. We enrolled 144 patients who underwent a rotator cuff repair. We selected 58 controls who didn't have any cuff lesions apparent on magnetic resonance imaging. Using radiographs derived from standardized true anteroposterior views of the shoulder, we measured the SOC and the AHD. We used t-tests for statistical analyses. RESULTS: A rotator cuff tear was associated with an increase in SOC and a decrease in AHD. In control group, the mean SOC was 1.29 ± 1.71 mm and AHD was 9.71 ± 2.65 mm. In cuff tear group, the mean SOC was 3.15 ± 3.41 mm and AHD was 8.28 ± 1.76 mm. The mean SOCs of the patient group in relation to the mean SOC of the control group according to tear size, the SOCs of medium tear and lager groups showed statistically significant increase (p<0.05). CONCLUSIONS: The SOC may be a similarly effective to diagnose cuff tears of medium size and larger compared with AHD.
Humans
;
Humeral Head*
;
Magnetic Resonance Imaging
;
Methods*
;
Rotator Cuff
;
Scapula
;
Shoulder
;
Tears
6.A Clinical Study of Cutaneous Tumors of the Head and Neck.
Korean Journal of Dermatology 2016;54(7):516-524
BACKGROUND: There have been many changes to the social and medical environment in Korea and many studies showed a steady increase of cutaneous tumors. But none of them included a data occurring from head and neck. OBJECTIVE: To investigate the incidence and distribution of the cutaneous tumors of the head and neck. METHODS: A total of 1,415 cases of head and neck cutaneous tumors were obtained from pathology specimen at Department of Dermatology between 2010 and 2014. RESULTS: Among 1,415 cases of head and neck cutaneous tumors, 871 cases (61.5%) were benign tumors, 271 cases (19.2%) were malignant tumors, and 273 cases (19.2%) were premalignant lesions. The most common benign head and neck cutaneous tumors was epidermal cyst with 188 cases (21.6%), followed by 173 cases (19.9%) of seborrheic keratosis, 71 cases (8.2%) of intradermal nevi. Among the 271 cases of malignant head and neck cutaneous tumors, there were 164 cases (60.5%) of basal cell carcinoma, 89 cases (32.8%) of squamous cell carcinoma, 5 cases (1.8%) of malignant melanoma. The predilection sites of malignant head and neck tumors were face (87.5%), ear (4.8%) and neck (4.0%). Of the premalignant lesions, there were 210 cases (76.9%) of actinic keratosis, 36 cases (13.2%) of Bowen's disease and 27 cases (9.9%) of actinic cheilitis. CONCLUSION: In our study, the proportion of malignant tumors and premalignant lesion in head and neck tumors was higher than previous reports. Also, the percentage of woman in malignant tumors and premalignant lesions was higher than man, unlike previous studies. However, these results had limitation associated with retrospective study in a single institution, and further prospective study with multi-center is required for confirmation.
Actins
;
Bowen's Disease
;
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Cheilitis
;
Clinical Study*
;
Dermatology
;
Ear
;
Epidermal Cyst
;
Female
;
Head*
;
Humans
;
Incidence
;
Keratosis, Actinic
;
Keratosis, Seborrheic
;
Korea
;
Melanoma
;
Neck*
;
Nevus, Intradermal
;
Pathology
;
Prospective Studies
;
Retrospective Studies
7.Chemokine Expression during Adipogenesis and Inflammation in Orbital Fibroblasts from Patients with Graves’ Orbitopathy
Chae Eun LEE ; Soo Hyun CHOI ; Jin Sook YOON
Korean Journal of Ophthalmology 2020;34(3):192-202
Purpose:
Chemokines are involved in the pathogenesis of various autoimmune diseases, including Graves’ orbitopathy (GO), but comprehensive analyses of the dynamics of these cytokines and their receptors in such diseases remain lacking. In this study, we investigated the expressions of chemokines and their receptors during adipogenesis and inflammation in primary cultured orbital fibroblasts from patients with GO.
Methods:
The messenger RNA (mRNA) expression levels of chemokines were compared between GO (n = 6) and non-GO (n = 5) orbital tissues by real-time polymerase chain reaction. After adipogenesis was induced in primary cultured orbital fibroblasts from patients with GO (n =5) and following stimulation with interleukin (IL)-1β and tumor necrosis factor (TNF)-α, the mRNA expression levels of chemokines and their receptors were analyzed.
Results:
Chemokines were significantly downregulated in GO orbital tissues compared to non-GO orbital tissues (p < 0.05). Adipogenesis resulted in a strong increase in mRNA expression levels of chemokines and their receptors at an early stage (day 1); however, expression levels started to decrease thereafter and, eventually, decreased to below basal levels at the end of adipogenesis (day 10). Following stimulation with IL-1β and TNF-α, the mRNA expression levels of chemokines and their receptors increased, showing different responses to various proinflammatory cytokines.
Conclusions
Chemokines were strongly upregulated in the early phase of adipogenesis before decreasing continuously until the end of adipogenesis. Also, overt mature GO tissues showed reduced mRNA expression of chemokines compared to controls, which might indicate the existence of a shorter window for effective medical inflammatory treatment. The heightened levels of chemokines and their receptors observed after stimulation with IL-1β and TNF-α suggest a crucial role of proinflammatory cytokines in the pathogenesis of GO and, further, support the idea that chemokines could be used as biomarkers of GO activity.
8.Immunohistochemical Analysis of Midkine Expression in Preinvasive and Invasive Squamous Cell Neoplasia of the Uterine Cervix.
Suk Jin CHOI ; Eun Seop SONG ; Lucia KIM ; In Suh PARK ; Jee Young HAN ; Joon Mee KIM ; Young Chae CHU
Korean Journal of Pathology 2007;41(2):79-86
BACKGROUND: Midkine (MK) is a member of the heparin-binding growth factor family. Overexpression of MK is observed not only in cancerous tissue but also in precancerous lesions of the colon and the prostate. Using immunohistochemical methods, we investigated MK expression in preinvasive and invasive neoplasia of the uterine cervix. METHODS: We performed immunohistochemical analysis of archived cone biopsy and hysterectomy specimens from 161 squamous cell lesions of the uterine cervix (29 cervical intraepithelial neoplasia 1 (CIN1), 35 CIN2, 49 CIN3, 30 microinvasive squamous cell carcinomas (MIC), and 18 invasive squamous cell carcinoma). In addition, we examined if there is a correlation between MK expression and status of human papilloma virus infection determined by a commercially available DNA chip. RESULTS: None of the normal cervical mucosa showed MK immunostaining. The level of MK expression gradually increased according to the histologic grade. Moderate and strong expressions were most frequently observed in cervical tissue with CIN3 and MIC. MK immunostaining was more accentuated in the invasive border of MIC. CONCLUSION: MK may play a functional role in the disease progression of cervical squamous cell neoplasia.
Biopsy
;
Carcinoma, Squamous Cell
;
Cervical Intraepithelial Neoplasia
;
Cervix Uteri*
;
Colon
;
Disease Progression
;
Female
;
Humans
;
Hysterectomy
;
Immunohistochemistry
;
Mucous Membrane
;
Oligonucleotide Array Sequence Analysis
;
Papilloma
;
Prostate
9.Clinical Observation on Antihypertensive Effects of Enalapril.
Choong Hwan KWAK ; Jin Hong CHUNG ; Hyoung Woo LEE ; Shung Chull CHAE ; Jae Eun JUN ; Wee Hyun PARK
Korean Circulation Journal 1989;19(1):97-103
To observe the antihypertensive effects of the angiotensin-converting enzyme inhibitor, enalapril, a daily average dosage of 20mg was administred to 38 patients with essential hypertension for 4 weeks. Changes in blood pressure and heart rate, and the frequencies of adverse reactions during the drug administration were constantly observed. At the end of the 4th week of administration the mean diastolic blood pressure decreased from 104+/-11.3 to 91+/-7.9mmHg(<0.001), and the mean systolic blood pressure from 165+/-16.8 to 142+/-10.6mmHg(P<0.001), An effective antihypertensive action of enalapril was observed in 31 out of 38 cases(82%), and normalization of diastolic blood pressure below 85mmHg was shown in 27 cases(71%). The most remarkable antihypertensive effects were shown at the end of first week, and the effect increased progressively until the end of 4th week of therapy. There were no significant changes in heart rate during the observation period. Adverse reactions occured in only 7 cases(18%). These reactions included headache, dizziness, fatigue, skin rash and facial flushing in the order of frequency. Almost all of these reaction were mild and transient, disappearing spontanously without discontinuation of the medication. In conclusion, enalapril seems to be a safe and effective primary antihypertensive drug for the treatment of essential hypertension.
Blood Pressure
;
Dizziness
;
Enalapril*
;
Exanthema
;
Fatigue
;
Flushing
;
Headache
;
Heart Rate
;
Humans
;
Hypertension
10.The Short Term Efficacy of Entecavir Therapy in Chronic Hepatitis B.
Hyun KIM ; Hee Bok CHAE ; Won Joong JEON ; Seon Mee PARK ; Sei Jin YOUN ; Jong Ryul EUN ; Heon Ju LEE
Yeungnam University Journal of Medicine 2008;25(1):31-40
BACKGROUND/AIMS: Entecavir is a synthetic nucleoside analogue, cyclopentyl guanine nucleoside, which has a potent antiviral effect and the least viral breakthrough in hepatitis B virus (HBV) replication. Entecavir has been available in Korea since 2007 but there are few reports on its effects. The aim of this study was to evaluate the virological response (VR) and biochemical response (BR) to entecavir in HBV patients at 3, 6 and 9 months after treatment with entecavir. MATERIALS AND METHODS: Thirty-three chronic hepatitis B patients who took entecavir for at least 9 months were enrolled. We investigated VR and BR by retrospectively reviewing medical records. Patients who satisfied the following criteria were chosen: 1) initial alanine aminotransferase (ALT) levels = 1.5upper limit of normal (ULN) and 2) initial HBV DNA levels = 5 log10 copies/ml. We measured ALT levels every 3 months until month 9. HBV DNA was measured every 2 or 3 months by polymerase chain reaction (PCR) method. RESULTS: Most patients taking entecavir showed good BR (ALT < 40 IU/L). The BR rates were 61%, 73% and 67% at months 3, 6 and 9, respectively. VR (HBV DNA < 5 log(10) copies/ml or 2 log lower than initial HBV DNA) rates were 82%, 91% and 91% at months 3, 6 and 9, respectively. Undetectable HBV DNA (HBV DNA < 4 log(10) copies/ml) rates were 49%, 73% and 85% at months 3, 6 and 9, respectively. Two patients presented with virological breakthrough without adverse effects until month 9. CONCLUSIONS: Entecavir showed good BR and VR from month 3 and these effects continued through the 9-month observation period. This suggests that entecavir is also a good choice for the first line treatment of chronic hepatitis B (CHB). Further studies are needed to determine the long-term efficacy and drug resistance of entecavir in Korean CHB patients.
Alanine Transaminase
;
DNA
;
Drug Resistance
;
Guanine
;
Hepatitis B virus
;
Hepatitis B, Chronic
;
Hepatitis, Chronic
;
Humans
;
Korea
;
Medical Records
;
Polymerase Chain Reaction
;
Retrospective Studies