1.A Clinical Observation on Scrotal Trauma and Testicular Rupture.
Hwang Taik JANG ; Kou Young YANG
Korean Journal of Urology 1983;24(6):1043-1046
The incidence of testicular rupture by blunt trauma has been considered rare. But if testicular rupture has developed, the diagnosis of which is difficult. In the 50 cases of scrotal trauma patients, we investigated in the frequency of testicular rupture and early exploration in comparison with delayed exploration. Then the incidence of testicular rupture was in 46.1% of the cases of exploration, and early exploration of for scrotal trauma has resulted in higher testicular salvage rate than delayed exploration.
Diagnosis
;
Humans
;
Incidence
;
Rupture*
2.A Clinical Observation on Scrotal Trauma and Testicular Rupture.
Hwang Taik JANG ; Kou Young YANG
Korean Journal of Urology 1983;24(6):1043-1046
The incidence of testicular rupture by blunt trauma has been considered rare. But if testicular rupture has developed, the diagnosis of which is difficult. In the 50 cases of scrotal trauma patients, we investigated in the frequency of testicular rupture and early exploration in comparison with delayed exploration. Then the incidence of testicular rupture was in 46.1% of the cases of exploration, and early exploration of for scrotal trauma has resulted in higher testicular salvage rate than delayed exploration.
Diagnosis
;
Humans
;
Incidence
;
Rupture*
3.Comparison of the Outcomes and Recurrence with Three Surgical Techniques for Chronic Subdural Hematoma: Single, Double Burr Hole, and Double Burr Hole Drainage with Irrigation.
Kyoung Min JANG ; Jeong Taik KWON ; Sung Nam HWANG ; Yong Sook PARK ; Taek Kyun NAM
Korean Journal of Neurotrauma 2015;11(2):75-80
OBJECTIVE: Chronic subdural hematoma (CSDH), a disease commonly encountered by neurosurgeons, is treated by burr hole drainage (BHD). However, the optimal surgical technique among the three types of BHD has not been determined. METHODS: We conducted a retrospective study on BHD performed on 93 patients who were diagnosed with CSDH. The subjects were divided into three groups based on the surgical technique performed: single BHD without irrigation (Group A, n=31), double BHD without irrigation (Group B, n=32), and double BHD with irrigation (Group C, n=30). The clinical factors, radiological factors and recurrences were compared between the three groups. Moreover, independent factors affecting the recurrence were analyzed. RESULTS: The change in hematoma thickness was 29.77+/-7.94%, 49.73+/-12.87%, and 75.29+/-4.32% for Group A, B, and C, respectively, while the change in midline shift was 40.81+/-15.47%, 51.78+/-10.94%, and 56.16+/-16.16%, respectively. Thus, Group C showed the most effective for resolution of hematoma and midline shift (p<0.05). Group A, B, and C had 12 cases (38.7%), 8 cases (25.0%), and 3 cases (10.0%) of recurrences, respectively. Group C had a statistically significantly fewer recurrence rate than Group A (p<0.05). Double burr hole, irrigation, and coagulopathy were each identified as independent factors that reduce recurrence (p<0.05). CONCLUSION: Among the three techniques, the double BHD with saline irrigation resulted in the fewest recurrences. It is probably the most effective technique for preventing the recurrence of CSDH.
Drainage*
;
Hematoma
;
Hematoma, Subdural, Chronic*
;
Humans
;
Recurrence*
;
Retrospective Studies
;
Therapeutic Irrigation
;
Trephining
4.The Effect of Locally Administered Fibrinolytic Drugs Following Aneurysmal Subarachnoid Hemorrhage : A Meta-Analysis with Eight Randomized Controlled Studies
Kyoung Min JANG ; Hyun Ho CHOI ; Taek Kyun NAM ; Yong Sook PARK ; Jeong Taik KWON ; Jun Soo BYUN ; Doyeon HWANG
Journal of Korean Neurosurgical Society 2021;64(2):207-216
Objective:
: Rapid dissolution of blood clots reduces vasospasm and hydrocephalus after subarachnoid hemorrhage (SAH), and locally administered fibrinolytic drugs (LAFDs) could facilitate the dissolution. However, the efficacy of LAFDs remains controversial. The aim of this meta-analysis was to determine the efficacy of LAFDs for vasospasm and hydrocephalus and in clinical outcomes.
Methods:
: From PubMed, EMBASE, and Cochrane database, data were extracted by two authors. Meta-analysis was performed using a random effect model. Inclusion criteria were patients who had LAFDs with urokinase-type or recombinant tissue-plasminogen activator after SAH in comparison with medically untreated patients with fibrinolytic drugs. We only included randomized controlled trials (RCTs) in this analysis. The outcomes of interest were vasospasm, hydrocephalus, mortality, and 90-day unfavorable functional outcome.
Results:
: Data from eight RCTs with 550 patients were included. Pooled-analysis revealed that the LAFDs were significantly associated with lower rates of vasospasm (LAFDs group vs. control group, 26.5% vs. 39.2%; odds ratio [OR], 0.48; 95% confidence interval [CI], 0.32–0.73); hydrocephalus (LAFDs group vs. control group, 26.0% vs. 31.6%; OR, 0.54; 95% CI, 0.32–0.91); and mortality (LAFDs group vs. control group, 10.5% vs. 15.7%; OR, 0.58; 95% CI, 0.34–0.99). The proportion of 90-day unfavorable outcomes was lower in the LAFDs group (LAFDs group vs. control group, 32.7% vs. 43.5%; OR, 0.55; 95% CI, 0.37–0.80).
Conclusion
: This meta-analysis with eight RCTs indicated that LAFDs were significantly associated with lower rates of vasospasm and hydrocephalus after SAH. Thus, LAFDs could consequently reduce mortality and improve clinical outcome after SAH.
5.The Effect of Inhibition of Heme Oxygenase-1 on Chemosensitivity of Cisplatin in Lung Cancer Cells.
So Young KIM ; Eun Jung KIM ; Hye Yeon JANG ; Ki Eun HWANG ; Jung Hyun PARK ; Hwi Jung KIM ; Hyang Jeong JO ; Sei Hoon YANG ; Eun Taik JEONG ; Hak Ryul KIM
Tuberculosis and Respiratory Diseases 2007;62(1):33-42
BACKGROUND: Heme oxygenase-1 (HO-1) is known to modulates the cellular functions, including cell proliferation and apoptosis. It is known that a high level of HO-1 expression is found in many tumors, and HO-1 plays an important role in rapid tumor growth on account of its antioxidant and antiapoptotic effects. Cisplatin is a widely used anti-cancer agent for the treatment of lung cancer. However, the development of resistance to cisplatin is a major obstacle to its use in clinical treatment. We previously demonstrated that inhibiting HO-1 expression through the transcriptional activation of Nrf2 induces apoptosis in A549 cells. The aim of this study was to determine of the inhibiting HO-1 enhance the chemosensitivity of A549 cells to cisplatin. MATERIALS AND METHODS: The human lung cancer cell line, A549, was treated cisplatin, and the cell viability was measured by a MTT assay. The change in HO-1, Nrf2, and MAPK expression after the cisplatin treatment was examined by Western blotting. HO-1 inhibition was suppressed by ZnPP, which is a specific pharmacologic inhibitor of HO activity, and small interfering RNA (siRNA). Flow cytometry analysis and Western blot were performed in to determine the level of apoptosis. The level of hydrogen peroxide (H2O2) generation was monitored fluoimetrically using 2',7'-dichlorofluorescein diacetate. RESULTS: The A549 cells showed more resistance to the cisplatin treatment than the other cell lines examined, whereas cisplatin increased the expression of HO-1 and Nrf2, as well as the phosphorylation of MAPK in a time-dependent fashion. Inhibitors of the MAPK pathway blocked the induction of HO-1 and Nrf2 by the cisplatin treatment in A549 cells. In addition, the cisplatin-treated A549 cells transfected with dither the HO-1 small interfering RNA (siRNA) or ZnPP, specific HO-1 inhibitor, showed in a more significantly decrease in viability than the cisplatin-only-treated group. The combination treatment of ZnPP and cisplatin caused in a marked increase in the ROS generation and a decrease in the HO-1 expression. CONCLUSION: Cisplatin increases the expression of HO-1, probably through the MAPK-Nrf2 pathway, and the inhibition of HO-1 enhances the chemosensitivity of A549 cells to cisplatin.
Apoptosis
;
Blotting, Western
;
Cell Line
;
Cell Proliferation
;
Cell Survival
;
Cisplatin*
;
Flow Cytometry
;
Heme Oxygenase-1*
;
Heme*
;
Humans
;
Hydrogen Peroxide
;
Lung Neoplasms*
;
Lung*
;
Phosphorylation
;
RNA, Small Interfering
;
Transcriptional Activation
6.The role of ceramidase in murine ovarian granulosa cell death.
Mee Ran KIM ; Sang Tae LEE ; Jae Eun CHUNG ; Hyun Hee JO ; Sung Jin HWANG ; Dong Jin KWON ; Young Ok LEW ; Young Taik LIM ; Jang Heub KIM ; Jin Woo LEE ; Jin Hong KIM
Korean Journal of Obstetrics and Gynecology 2004;47(12):2453-2458
OBJECTIVE: One of the models we study is the ovarian granulosa cell (GC), a somatic cell lineage that is critically important for maintenance of the female germ line and many endocrine functions of the ovaries. The objective of this study is to clarify the significance of ceramide and the role of ceramide metabolism in dictating the fate of cells exposed to stress. METHODS: We first treated GC with a C8-ceramide analog or an amine derivative of ceramide that cannot be metabolized by ceramidase (C8-ceramine). Northern blot analysis was performed to evaluate mRNA of acid ceramidease expression regualted by gonadotropin and in situ hybridization was done to identify the mRNA expression of acid ceramidase in ovaries. RESULTS: After 6 hours, C8-ceramide (50 micro M) triggered apoptosis in only 28 +/- 6% of the cells, whereas C8-ceramine (50 micro M) induced apoptosis in all cells (LD50=1 micro M). These data suggested that ceramidase activity is a critical determinant of GC survival. In situ hybridization showed that mRNA of acid ceramidase was highly expressed in GC in growing follicle. mRNA of acid ceramidase was expressed abundantly in granulosa cells and ovaries and its expression was significantly increased by gonadotropin in granulosa cells in in situ hybridization. Forty two hour after gonadotropin treatment, mRNA expression of acid ceramidase in granulosa cells was two fold increased cells comparing with no treatment control in northern blot analysis (P<0.05). In copora lutea, elevated mRNA expression of acid ceramidase was decreased. CONCLUSION: We concluded that GC possess inherently high levels of ceramidase activity, and that ceramidase has important for metabolizing ceramind to maintain GC survival in the ovary.
Acid Ceramidase
;
Apoptosis
;
Blotting, Northern
;
Cell Lineage
;
Ceramidases*
;
Female
;
Germ Cells
;
Gonadotropins
;
Granulosa Cells*
;
Humans
;
In Situ Hybridization
;
Metabolism
;
Ovary
;
RNA, Messenger
7.Relationship between Body Composition and Bone Mineral Density in Pre- and Post-menopausal Women.
Jae Eun CHUNG ; Sung Jin HWANG ; Min Jung KIM ; Jae Yen SONG ; Hyun Hee CHO ; Dong Jin KWON ; Young Oak LEW ; Young Taik LIM ; Eun Jung KIM ; Jang Heub KIM ; Jin Hong KIM ; Mee Ran KIM
The Journal of Korean Society of Menopause 2010;16(1):29-38
OBJECTIVES: We analyzed the relationship between body composition, metabolic parameters, and lumbar and femur bone mineral density (BMD) in pre-and post-menopausal women. METHODS: Of 394 females who participated in a medical check-up program, anthropometric measurements and fasting glucose levels and lipid profiles were measured. Body composition analysis was performed using the bioimpedence method and the BMD of the lumbar spine, femur neck, trochanter, ward's triangle, and total were measured by dual energy X-ray absorptiometry. RESULTS: The mean age was 49.5 +/- 9.8 years, and among the subjects, 203 (51.5%) were pre-menopausal and 191 (48.5%) were post- menopausal women. Skeletal muscle mass, fat- free mass, lean body mass, and basal metabolic rate had a positive correlation with the lumbar and femur spine BMD, even after adjustment for age and weight in pre-menopausal women. The abdominal fat ratio, fat mass, waist circumference, percent fat, and total cholesterol had a negative correlation with the lumbar and femur spine BMD, even after adjustment for age and weight in pre-menopausal women. The lean body mass in the legs and trunk, skeletal muscle mass, and fat free mass had a positive correlation with the BMD of the lumbar spine and femur neck, unlike the lean body mass of the arms did not, after adjustment for age and weight in post-menopausal women. CONCLUSION: In pre- and post-menopausal Korean women, body composition, lean body mass, fat -free mass, and skeletal muscle mass were positive correlates, and fat mass and percent fat were negative correlates with the lumbar spine and femur BMD.
Abdominal Fat
;
Arm
;
Basal Metabolism
;
Body Composition
;
Bone Density
;
Cholesterol
;
Fasting
;
Female
;
Femur
;
Femur Neck
;
Glucose
;
Humans
;
Leg
;
Muscle, Skeletal
;
Spine
;
Waist Circumference