1.Ultrastructural Studies of Aortic Endothelial Injury and Regeneration.
Gium Mi JANG ; Dong Hoon KIM ; Jyung Sik KWAK ; Tae Joong SOHN
Korean Journal of Pathology 1990;24(4):337-348
Author performed this experiment to define the most important factor preventing the intimal thickening. An endothelium of abdominal aorta in the rat was denuded by two different wires having same caliver. The degree of injury was limited to the endothelial cells in one, and extended to the internal elastic lamina in another. The results showed that at 72 hours, in the case of superficial injury, the entire injury site was covered by new regenerating cells, but in the case of disruption of the internal elastic lamina, the migrating smooth muscle cell completely reached into the intima and resulted in intemal thickening. Similar findings persisted to 1 week later. Above results suggest the most important factor preventing the intimal thickening in endothelial injury is the depth of the injury which limited within the endothelial cells without extending into the internal elastic lamina and medial smooth muscle cells.
Rats
;
Animals
2.The Association between Polymorphism of the Dopamine D3 Receptors and Concentrations of Plasma Homovanillic and 5-hydroxyindoleacetic Acid, and Therapeutic Response of chronic Schizophrenic Patients.
Geo Jang JEONG ; Min Soo LEE ; Sang Yoon KIM ; Dae Yeop KANG ; Dong Il KWAK
Journal of the Korean Society of Biological Psychiatry 2001;8(1):116-122
OBJECTIVES: Schizophrenia manifests a variety of interindividual differences in therapeutic response to antipsychotics. This might be attributable to dopamine and serotonin receptors that a important target for various antipsychotics, and the D3 receptor(DRD3) alleles they carry. The purpose of our study was to investigate whether the plasma levels of homovanillic acid(HVA) and 5-hydroxyindoleacetic acid(HIAA), and the polymorphism of DRD3 can be held as a predictor of treatment response ni chronic schizophrenic patients. METHODS: Therapeutic response for 16 korean schizophrenia patient treated during 48 weeks were assessed by PANSS used as the clinical symptom rating scales. The levels of concentration of HVA and 5-HIAA were examined by HPLC at baseline and at 48 weeks. We classified the polymorphism of DRD3 receptor using amplifying by polymerase chain reaction(PCR). RESULTS: Neither concentrations of HVA and 5-HIAA nor genotype of dopamine 3 receptor were not significantly associated with the therapeutic response. But, the patients who has A1 alleles of DRD3 gene showed poor therapeutic responses. CONCLUSION: A1 allele of DRD3 gene is associated with poor prognosis of chronic schizophrenia.
Alleles
;
Antipsychotic Agents
;
Chromatography, High Pressure Liquid
;
Dopamine*
;
Genotype
;
Homovanillic Acid
;
Humans
;
Hydroxyindoleacetic Acid
;
Plasma*
;
Prognosis
;
Receptors, Dopamine D3*
;
Receptors, Serotonin
;
Schizophrenia
;
Weights and Measures
3.Subconjunctival Abscess Formation with Periorbital Cellulitis Following Scleral Buckling
Jeeyoung KWAK ; Dong Cheol LEE ; Ji Hye JANG
Journal of the Korean Ophthalmological Society 2022;63(9):802-806
Purpose:
We present a case of a subconjunctival abscess formation with periorbital cellulitis following scleral buckling (SB) and pars planar vitrectomy (PPV).Case summary: A 51-year-old female patient came to our hospital with complaints of ocular pain and discharge in the right eye. The patient underwent SB and several times of PPV for multiple rhegmatogenous retinal detachment due to acute retinal necrosis. The onset of symptoms was 9 months after the last vitrectomy. A subconjunctival abscess was seen at 8 o'clock position on slit lamp, and periorbital cellulitis was observed on computed tomography image, the patient underwent an incision and drainage (I&D) surgery. Another 9 months later, a subconjunctival abscess was newly found at 4 o'clock position. Since the abscess site and the position of the stitch which sutured the buckle sponge was exactly same, the cause of infection was thought to be the sponge suture materials. Along with I&D surgery, the suture at the end of the sponge was removed. After then, conjunctival and periorbital inflammation got improved and the patient is still in the process of examination to date.
Conclusions
Subconjunctival abscess or periorbital cellulitis is a rare complication of SB, caused by the use of an exogenous materials such as silicon sponge or suture stitches. Therefore, when ocular pain or inflammation is observed in SB patients, early detection and active treatment is required for suspected periorbital cellulitis.
4.Arthroscopic Assessment of Intra-Articular Lesion after Surgery for Rotational Ankle Fracture.
Seung Do CHA ; Jae Yong KWAK ; Heui Chul GWAK ; Dong Jun HA ; Jong Yup KIM ; Ui Cheol KIM ; Yue Chan JANG
Clinics in Orthopedic Surgery 2015;7(4):490-496
BACKGROUND: The purpose of this study was to report findings of exploratory arthroscopic assessment performed in conjunction with removal of internal fixation device placed in the initial surgery for rotational ankle fracture. METHODS: A total of 53 patients (33 male, 20 female) who underwent surgery for rotational ankle fracture between November 2002 and February 2008 were retrospectively reviewed. All patients gave consent to the exploratory arthroscopic surgery for the removal of internal fixation devices placed in the initial surgery. Lauge-Hansen classification system of ankle fractures was assessed for all patients. Intra-articular lesions (osteochondral lesion, loose body, and fibrosis) were evaluated via ankle arthroscopy. Comparative analysis was then performed between radiological classification of ankle fracture/patient's symptoms and arthroscopic findings. RESULTS: Lauge-Hansen classification system of ankle fractures included supination-external rotation type (n = 35), pronation-external rotation type (n = 9), and pronation-abduction type (n = 9). A total of 33 patients exhibited symptoms of pain or discomfort while walking whereas 20 exhibited no symptoms. Arthroscopic findings included abnormal findings around the syndesmosis area (n = 35), intra-articular fibrosis (n = 51), osteochondral lesions of the talus (n = 33), loose bodies (n = 6), synovitis (n = 13), and anterior bony impingement syndrome (n = 3). Intra-articular fibrosis was seen in 31 of symptomatic patients (93.9%). Pain or discomfort with activity caused by soft tissue impingement with meniscus-like intra-articular fibrosis were found in 19 patients. There was statistical significance (p = 0.02) between symptoms (pain and discomfort) and the findings of meniscus-like fibrosis compared to the group without any symptom. CONCLUSIONS: Arthroscopic examination combined with treatment of intra-articular fibrosis arising from ankle fracture surgery may help improve surgical outcomes.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Ankle/*pathology/radiography/*surgery
;
Ankle Fractures/*pathology/radiography/*surgery
;
Arthralgia
;
Arthroscopy/*methods
;
Female
;
Fibrosis
;
Humans
;
Male
;
Middle Aged
;
Retrospective Studies
;
Treatment Outcome
;
Young Adult
5.A case of pulmanary eosinophilic granuloma involving mediastinal lymph node.
Seung Min KWAK ; Se Kyu KIM ; Dong Hwan SHIN ; Kyung Young CHUNG ; Joong Hyun JANG ; Hong Lyeol LEE ; Sung Kyu KIM ; Won Young LEE
Tuberculosis and Respiratory Diseases 1993;40(4):425-430
No abstract available.
Eosinophilic Granuloma*
;
Eosinophils*
;
Lymph Nodes*
6.Ozone Exposure Suppresses Proliferative Response in Mice Skin.
Su Jung HAN ; Mi Kyung KWAK ; Dong Hoon HAN ; Shin Hee KIM ; An Soo JANG
The Korean Journal of Internal Medicine 2012;27(3):360-362
No abstract available.
Air Pollutants/*toxicity
;
Animals
;
Biological Markers/metabolism
;
Cell Proliferation/*drug effects
;
Female
;
Immunohistochemistry
;
Inhalation Exposure
;
Mice
;
Mice, Inbred BALB C
;
Nasal Mucosa/drug effects/pathology
;
Ozone/*toxicity
;
Proliferating Cell Nuclear Antigen/metabolism
;
Respiratory Mucosa/*drug effects/metabolism/pathology
;
Skin/*drug effects/metabolism/pathology
7.Relationship between the Expression of Sodium Iodide Symporter and the Findings of 99mTc-MIBI Scintimammography in the Primary Breast Cancer.
Ju Won SEOK ; Seong Jang KIM ; Hi Suk KWAK ; Chang Hun LEE ; In Ju KIM ; Yong Ki KIM ; Young Tae BAE ; Dong Soo KIM
Korean Journal of Nuclear Medicine 2002;36(6):325-332
No abstract available.
Breast Neoplasms*
;
Breast*
;
Ion Transport*
;
Sodium Iodide*
;
Sodium*
8.Relationship between the Expression of Sodium Iodide Symporter and the Findings of 99mTc-MIBI Scintimammography in the Primary Breast Cancer.
Ju Won SEOK ; Seong Jang KIM ; Hi Suk KWAK ; Chang Hun LEE ; In Ju KIM ; Yong Ki KIM ; Young Tae BAE ; Dong Soo KIM
Korean Journal of Nuclear Medicine 2002;36(6):325-332
No abstract available.
Breast Neoplasms*
;
Breast*
;
Ion Transport*
;
Sodium Iodide*
;
Sodium*
9.Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry.
Yoon Young KWAK ; Insan JANG ; Dong Soon CHOI ; Bong Kuen CHA
The Korean Journal of Orthodontics 2014;44(3):143-153
An 8-years old boy with facial asymmetry and unilateral posterior crossbite on the left side received orthopedic and orthodontic treatment. During the first phase of treatment, the narrow maxillary arch was expanded using an acrylic plate. Then, the acrylic plate was used as a bite block with occlusal indentations from the construction bite that was obtained with the incisors in a coincident dental midline. After the position of the mandible was stabilized, the second phase of orthodontic treatment was initiated using fixed appliances for detailing of the occlusion. Skeletal symmetry, ideal occlusion, and coincident dental midlines were thus achieved. Functionally, occlusal force balance and masticatory muscle activity were improved, and the chewing patterns were normalized.
Bite Force
;
Electromyography
;
Facial Asymmetry*
;
Humans
;
Incisor
;
Male
;
Malocclusion*
;
Mandible
;
Mastication
;
Masticatory Muscles
;
Orthopedics*
;
Palatal Expansion Technique
10.Comparison of Ultrasound with 99mTc - MIBI Scintimammography in the Detection of Breast Cancer.
Ju Won SEOK ; Seong Jang KIM ; Hi Suk KWAK ; Jun Woo LEE ; In Ju KIM ; Yong Ki KIM ; Young Tae BAE ; Dong Soo KIM
Korean Journal of Nuclear Medicine 2002;36(3):177-184
No abstract available.
Breast Neoplasms*
;
Breast*
;
Ultrasonography*