1.Electron Microscopic Study in the Rat Model of Electrically Injured Myelopathy: Preliminary Report
Je Hoon JEONG ; Cheong Hoon SEO ; Dae Hoon LEE
Korean Journal of Neurotrauma 2023;19(2):218-226
Objective:
The patient with electrically injured myelopathy showed mild motor weakness without somatosensory pathway abnormalities. Few reports have been reported on the pathophysiological mechanisms of electrically injured myelopathy, and there is controversy about the exact pathological causes. This study aimed to investigate the ultrastructural changes in the electron microscopic findings of electrical spinal cord injury.
Methods:
Nine rats were used in this study. We performed 7 electrical shocks (frequency, 120 Hz; pulse width, 0.9 ms; duration, 3 seconds; current, 99 mA) using an electroconvulsive therapy (ECT) apparatus (57800 ECT unit; UGO BASILE). We used one ear and one contralateral hind limb as entry and exit sites, respectively. We only enrolled rats with hind limb weakness and performed electron microscopy evaluations of the spinal cord on the first day and 4 weeks after injury.
Results:
On the first day after injury, an electron microscopic examination showed a directly damaged area that appeared to be torn as physical damage, damaged myelin sheath, vacuolated axons in the myelin sheath, swollen Golgi apparatus, and injured mitochondria.Looking at changes in motor and sensory nerves, the sensory neurons showed recovered mitochondria and Golgi apparatus 4 weeks after injury; however, motor neurons still showed injured mitochondria, swollen Golgi apparatus, and endoplasmic reticulum.
Conclusion
This study showed that recovery from ultrastructural injury was more rapid in sensory neurons than in motor neurons.
2.A Case of Retrocaval Ureter.
Jeong Hoon LEE ; Dae Haeng CHO
Korean Journal of Urology 1984;25(2):230-232
This rare venous congenital anomaly has been diagnosed preoperatively in a 35-year-old female with complaint of the right flank pain. Herein a case of retrocaval ureter is presented with brief review of literatures.
Adult
;
Female
;
Flank Pain
;
Humans
;
Retrocaval Ureter*
3.Immediate reconstruction of thumb tip injury.
Gyu Ho CHA ; Sang Hyun WOO ; Dae Hoon LEE ; Jeong Hyun SEUL
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):533-538
No abstract available.
Thumb*
4.A comparison of ritodrine hydrochloride(Yutopar@) and nifedipine in the treatment of preterm labor.
Jeong Seung LEE ; Jang Heub KIM ; Do Kang KIM ; Dae Hoon KIM ; Hun Young LEE
Korean Journal of Obstetrics and Gynecology 1991;34(3):340-347
No abstract available.
Female
;
Nifedipine*
;
Obstetric Labor, Premature*
;
Pregnancy
;
Ritodrine*
5.A case of Endobronchial Tuberculosis Accompanied by Embedded Lymph Node.
Kyoung Hoon CHOI ; Jeong A HWANG ; Byeung Ju JEONG ; Kyu Earn KIM ; Ki Young LEE ; Fan Chen MONG ; Hee Dae PARK
Journal of the Korean Pediatric Society 1990;33(3):386-392
No abstract available.
Lymph Nodes*
;
Tuberculosis*
6.Twa Cases of Sacrococcygeal Teratoma Doagnosed by prenatal Ultrasosography.
Dae Hoon JEONG ; Jeong Soo KIM ; Young Nam KIM ; Woo Gyeong KIM ; Moon Su SUNG ; Hyun Chan KIM
Korean Journal of Perinatology 2000;11(3):360-365
No abstract available.
Teratoma*
7.HRCT Findings of Bleomycin-Related Lung Toxicity: A Report of 2 Case.
Jeong Geun YI ; Won Ho JANG ; Dae Young YOON ; Sang Hoon BAE
Journal of the Korean Radiological Society 1997;36(1):83-86
Many drugs can result in a variety of pathologic reactions in the lung, especially the cytotoxic drugs. Amongcytotoxic drugs bleomycin is a prototype. Bleomycin-related pulmonary toxicity is usually known as dose-dependent and can be enhanced with concurrent oxygen therapy, irradiation, or other chemotherapeutic agents. The incidence of bleomycin-induced pulmonary toxicity has been reported as varying from 2 to 46%, and 1% of fatal lung disease. We describe the radiographic and HRCT findings of bleomycin-related pulmonary toxicity developed in two patients: one in ovarian teratocarcinoma, the other malignant lymphoma patient. Chest radiographs and HRCT of these patients showed ground-glass opacities, consolidation, linear and reticular opacities, and interlobular septal thickening. These abnormalities were bilateral, and symmetrical and were found predominantly in the area of mid-and lower-lung zone.
Bleomycin
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Humans
;
Incidence
;
Lung Diseases
;
Lung*
;
Lymphoma
;
Oxygen
;
Radiography, Thoracic
;
Teratocarcinoma
8.Association Studies of the CT Repeat Polymorphism in the Cholecystokinin B Receptor Gene with the Diagnosis and the Response of Pharmacotherapy in Korean Patients with Panic Disorder.
Young Hee CHOI ; Jong Min WOO ; Jeong Hoon BAE ; Dae Yeon CHO ; Won KIM
Korean Journal of Psychopharmacology 2006;17(1):60-69
OBJECTIVE: This study aimed to test the possible association between Cholecystokinin B receptor (CCKBR) promoter gene and panic disorder. METHODS: 262 patients with panic disorder and 76 healthy controls participated in this study. Genotyping was performed by polymerase chain reaction-based method. RESULTS: Allele distribution of CT repeat polymorphism in patients with panic disorder was not different from those of the controls. However, after excluding the patients with panic disorder comorbid with major depressive disorder and other anxiety disorder, we found out the significant association of CCKBR (CT)n repeat with the panic disorder without comorbidities. And we analysed the data as a di-allelic polymorphism with a short (140-162 bp) and a long (164-180 bp) allele. In the di-allelic analysis, there was an excess of the shorter allele in patients with panic disorder. CONCLUSION: The present study suggested that the CCKBR promoter dinucleotide polymorphism may have a potential role for susceptibility to panic disorder in the Korean population and thus calls for consecutive studies in order to pile up the data with larger different ethnic background.
Alleles
;
Anxiety Disorders
;
Cholecystokinin*
;
Comorbidity
;
Depressive Disorder, Major
;
Diagnosis*
;
Drug Therapy*
;
Humans
;
Panic Disorder*
;
Panic*
;
Receptor, Cholecystokinin B*
9.Effects of ProSeal Laryngeal Mask Airway on Intraoperative Ventilation and Blood Pressure, and Postoperative Sore Throat in Laparoscopic Cholecystectomy.
Ji Hoon JEONG ; Sun Ok SONG ; Heung Dae KIM
Korean Journal of Anesthesiology 2004;46(1):10-16
BACKGROUND: This study was performed to evaluate the effects of a ProSeal laryngeal mask airway (PLMA) on intraoperative ventilation and blood pressure, and postoperative sore throat in laparoscopic cholecystectomy (LC). METHODS: Sixty, ASA 1 or 2 adults scheduled for elective LC were randomly allocated into two groups; i.e., endotracheal tube (ETT) or PLMA groups. General anesthesia was administered in the usual fashion. Blood pressure and heart rate were measured before and after the induction of anesthesia. Blood pressure, heart rate, peak inspiratory pressure (PIP) and end-tidal CO2 (ETCO2) also were measured before and after intraabdominal CO2 insufflation (pneumoperitoneum) at 5 minutes intervals over 30 minutes. Sore throat, nausea and vomiting were evaluated at 6 and 24 hours postoperatively. RESULTS: Blood pressure and heart rate were higher in the ETT group than in the PLMA group after induction (P < 0.05), however, no differences were observed during pneumoperitoneum. Following the induction of pneumoperitoneum, ETCO2 increased significantly, but without the group differences. PIP was less increased in the PLMA group. No significant differences were observed in incidences of postoperative sore throat, nausea or vomiting in the two groups. CONCLUSIONS: We conclude that PLMA is a useful alternative to ETT in LC. Furthermore, PLMA seems to be more useful for hypertensive patients.
Adult
;
Anesthesia
;
Anesthesia, General
;
Blood Pressure*
;
Cholecystectomy, Laparoscopic*
;
Heart Rate
;
Humans
;
Incidence
;
Insufflation
;
Laryngeal Masks*
;
Nausea
;
Pharyngitis*
;
Pneumoperitoneum
;
Ventilation*
;
Vomiting
10.Penetrating Injury by an Iron Reinforcing Bar Associated with a Fall or Slip Injury.
Yong Jeong KIM ; Dae Jin LIM ; In Sik PARK ; Hoon Sang CHI
Journal of the Korean Surgical Society 1998;54(6):789-794
INTRODUCTION: There was increase in a fall injury at the field of construction work, nowadays. There was also increase in penetrating injury by an iron reinforcing bar associated with a fall or slip injury. But this is not widely discussed in the surgical literature. The purpose of this study was to define the characteristics of injury, diagnosis, treatment and prognosis of the penetrating injury by an iron reinforcing bar associated with a fall or slip injury. METHODS AND MATERIALS: We reviewed retrospectively medical records of 17 patients who admitted and managed at Yongdong Severance hospital, Yonsei university college of medicine due to penetrating injury by an iron reinforcing bar associated with a fall or slip injury from Nov. 1987 to Dec. 1996. RESULTS: The penetrating injuries by an iron reinforcing bar associated with a fall or slip injury were 5 cases of a slip injury and 12 cases of a fall injury. The insertion site of an iron reinforcing bar was perineum in all of a slip injury. In a fall injury, insertion site was flank and back in 5 cases, perineum 4 cases, chest 2 cases and abdomen 1 case. In a fall injury, 9 patients had two or more organ injuries. CT scan was taken in 3 cases, sigmoidoscopy 3 cases and fistulogram 1 case in a slip injury. CT scan was done in 5 cases, sigmoidoscopy 1 case, cystogram 2 cases and intravenous pyelogram 1 case in a fall injury. 2 cases was cured conservatively, and operation was done in 3 cases in a slip injury in contrast to 2 cases of conservative management and operation 10 cases in a fall injury. There was no negative celiotomy. Complication was only one wound infection in a slip injury. There were wound infection 6 cases, pulmonary complication 4 cases, sepsis 1 case, necrotizing fascitis 1 case, anal sphincter injury 1 case, intraabdominal abscess 1 case and neurogenic bladder 1 case in a fall injury. There was no mortality. CONCLUSION: The penetrating injuries by an iron reinforcing bar associated with a fall or slip injury had characteristics of both penetrating and blunt injury. The chest and abdominal penetrating injuries lead to multiple organ injury. In perineal penetrating injury, we should evaluate the injury of urinary bladder, rectum and genital organ.
Abdomen
;
Abscess
;
Anal Canal
;
Diagnosis
;
Fasciitis, Necrotizing
;
Genitalia
;
Humans
;
Iron*
;
Medical Records
;
Mortality
;
Perineum
;
Prognosis
;
Rectum
;
Retrospective Studies
;
Sepsis
;
Sigmoidoscopy
;
Thorax
;
Tomography, X-Ray Computed
;
Urinary Bladder
;
Urinary Bladder, Neurogenic
;
Wound Infection
;
Wounds, Nonpenetrating