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.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*
8.Metanephric Adenoma of the Kidney: A Case Report.
Tae Kyoon NA ; Jae Hoon HOH ; Byung Goo YEO ; Dae Kyung KIM ; Ki Hwoa YANG ; Jin Young JUNG ; Hyeon JEONG
Korean Journal of Urology 2000;41(6):781-784
9.Metanephric Adenoma of the Kidney: A Case Report.
Tae Kyoon NA ; Jae Hoon HOH ; Byung Goo YEO ; Dae Kyung KIM ; Ki Hwoa YANG ; Jin Young JUNG ; Hyeon JEONG
Korean Journal of Urology 2000;41(6):781-784
10.A Case of Myotonic Dystrophy with Prolonged Atrial Flutter.
Won Kwon KANG ; Dae Hoi KU ; Seung Hun SHIN ; Yeon Chae JEONG ; Eun Seok JEON ; Jong Hoon PARK
Korean Circulation Journal 1989;19(4):770-775
Myotonic dystrophy is a multisystemic disorder inherited as an autosomal dominant trait. The characteristic clinical features include the presence of myotonia, atrophy of the muscles of the face and the sternocleidomastoids and numerous nonmusclar manifestations such as cataracts, frontal baldness, gonadal dysfunctions and cardiac abnormalities. We experienced one case of myotonic dystrophy with prolonged atrial flutter in 30-year-old male who was admitted because of palpitation. We present this case with reviewing literatures.
Adult
;
Alopecia
;
Atrial Flutter*
;
Atrophy
;
Cataract
;
Gonads
;
Humans
;
Male
;
Muscles
;
Myotonia
;
Myotonic Dystrophy*