4.Optic Neuritis after Infliximab Treatment in a Patient with Ulcerative Colitis
Namyoung KIM ; Jeungwan HAN ; Sang Jin PARK ; Yoon Shik CHUN ; Yohan JU ; Hyun-Jae KIM
Journal of the Korean Neurological Association 2024;42(1):31-34
Optic neuritis is a rare extraintestinal manifestation of inflammatory bowel disease. Antitumor necrosis factor alpha (anti-TNF-α) agents are essential treatment options in inflammatory bowel diseases. However, anti-TNF-α agents can implicate optic neuritis and other demyelinating diseases as complications of these agents. We report a patient of infliximab-induced optic neuritis in a patient with ulcerative colitis who was treated with high-dose steroids after discontinuation of infliximab.
5.A Novel Dorsal Slit Approached Non-Ischemic Partial Nephrectomy Method for a Renal Tissue Regeneration in a Mouse Model.
So Young CHUN ; Dae Hwan KIM ; Jeong Shik KIM ; Hyun Tae KIM ; Eun Sang YOO ; Jae Wook CHUNG ; Yun Sok HA ; Phil Hyun SONG ; Yoon Ki JOUNG ; Dong Keun HAN ; Sung Kwang CHUNG ; Bum Soo KIM ; Tae Gyun KWON
Tissue Engineering and Regenerative Medicine 2018;15(4):453-466
BACKGROUND: Kidney ischemia-reperfusion (IR) via laparotomy is a conventional method for kidney surgery in a mouse model. However, IR, an invasive procedure, can cause serious acute and chronic complications through apoptotic and inflammatory pathways. To avoid these adverse responses, a Non-IR and dorsal slit approach was designed for kidney surgery. METHODS: Animals were divided into three groups, 1) sham-operated control; 2) IR, Kidney IR via laparotomy; and 3) Non-IR, Non-IR and dorsal slit. The effects of Non-IR method on renal surgery outcomes were verified with respect to animal viability, renal function, apoptosis, inflammation, fibrosis, renal regeneration, and systemic response using histology, immunohistochemistry, real-time polymerase chain reaction, serum chemistry, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, and Masson's trichrome staining. RESULTS: The Non-IR group showed 100% viability with mild elevation of serum blood urea nitrogen and creatinine values at day 1 after surgery, whereas the IR group showed 20% viability and lethal functional abnormality. Histologically, renal tubule epithelial cell injury was evident on day 1 in the IR group, and cellular apoptosis enhanced TUNEL-positive cell number and Fas/caspase-3 and KIM-1/NGAL expression. Inflammation and fibrosis were high in the IR group, with enhanced CD4/CD8-positive T cell infiltration, inflammatory cytokine secretion, and Masson's trichrome stain-positive cell numbers. The Non-IR group showed a suitable microenvironment for renal regeneration with enhanced host cell migration, reduced immune cell influx, and increased expression of renal differentiation-related genes and anti-inflammatory cytokines. The local renal IR influenced distal organ apoptosis and inflammation by releasing circulating pro-inflammatory cytokines. CONCLUSION: The Non-IR and dorsal slit method for kidney surgery in a mouse model can be an alternative surgical approach for researchers without adverse reactions such as apoptosis, inflammation, fibrosis, functional impairment, and systemic reactions.
Animals
;
Apoptosis
;
Blood Urea Nitrogen
;
Cell Count
;
Cell Movement
;
Chemistry
;
Creatinine
;
Cytokines
;
DNA Nucleotidylexotransferase
;
Epithelial Cells
;
Fibrosis
;
Immunohistochemistry
;
Inflammation
;
Kidney
;
Laparotomy
;
Methods*
;
Mice*
;
Nephrectomy*
;
Real-Time Polymerase Chain Reaction
;
Regeneration*
6.Superficial Siderosis in Central Nervous System: A Case Report and Literature Review.
Gun Young LEE ; Hyeon Seon PARK ; Yu Shik SHIM ; Dong Keun HYUN ; Eun Young KIM ; Seung Hwan YOON ; Hyung Chun PARK ; Chong Oon PARK
Korean Journal of Neurotrauma 2013;9(2):139-141
Superficial siderosis (SS) in central nervous system is a rare, slowly progressive disease and usually misdiagnosed or diagnosed too late when the patient is chronically devastated. A 55-year-old man with deafness and gait disturbance for ten years was referred from otorhinologist for evaluation of brain. Magnetic resonance image (MRI) showed symmetric hypointense rim partially delineated the bilateral hemisphere on gradient-recalled-echo T2-weighted image, and it was diagnosed as hemosiderin deposition in subarachnoid and subpial meningeal layer. The correct diagnosis of cerebral superficial siderosis can be achieved by careful neurological examination and MRI because computed tomography findings and symptoms are ambiguous. Serial follow-up of imaging study and education for patient are necessary to prevent progression of SS.
Brain
;
Central Nervous System*
;
Deafness
;
Diagnosis
;
Education
;
Follow-Up Studies
;
Gait
;
Hearing Loss, Sensorineural
;
Hemosiderin
;
Humans
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neurologic Examination
;
Siderosis*
7.Superficial Siderosis in Central Nervous System: A Case Report and Literature Review.
Gun Young LEE ; Hyeon Seon PARK ; Yu Shik SHIM ; Dong Keun HYUN ; Eun Young KIM ; Seung Hwan YOON ; Hyung Chun PARK ; Chong Oon PARK
Korean Journal of Neurotrauma 2013;9(2):139-141
Superficial siderosis (SS) in central nervous system is a rare, slowly progressive disease and usually misdiagnosed or diagnosed too late when the patient is chronically devastated. A 55-year-old man with deafness and gait disturbance for ten years was referred from otorhinologist for evaluation of brain. Magnetic resonance image (MRI) showed symmetric hypointense rim partially delineated the bilateral hemisphere on gradient-recalled-echo T2-weighted image, and it was diagnosed as hemosiderin deposition in subarachnoid and subpial meningeal layer. The correct diagnosis of cerebral superficial siderosis can be achieved by careful neurological examination and MRI because computed tomography findings and symptoms are ambiguous. Serial follow-up of imaging study and education for patient are necessary to prevent progression of SS.
Brain
;
Central Nervous System*
;
Deafness
;
Diagnosis
;
Education
;
Follow-Up Studies
;
Gait
;
Hearing Loss, Sensorineural
;
Hemosiderin
;
Humans
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neurologic Examination
;
Siderosis*
8.Comparison of Drainage Volume of Chronic Subdural Hematoma According to Drainage Catheter Type.
Gun Young LEE ; Chang Hyun OH ; Yu Shik SHIM ; Seung Hwan YOON ; Hyeong Chun PARK ; Chong Oon PARK ; Dongkeun HYUN
Yonsei Medical Journal 2013;54(5):1091-1097
PURPOSE: To assess the therapeutic value of two different drainage catheters in treating chronic subdural hematoma (CSDH). MATERIALS AND METHODS: Two types of drainage catheters can be used to treat CSDH according to the position of holes in the catheter: open-type or closed-type catheter. In this retrospective study, 199 total patients with CSDH were reviewed according to catheter type. Among them, 84 patients were and 113 in the closed-type group (holes positioned within the distal-most 1 cm of the catheter). The surgeon selected the catheter type. Total drainage volume, initial drainage volume within 2 days, percentage of initial drainage volume per total drainage volume, duration of catheter insertion, and reoperation rate were compared. RESULTS: Total drainage volume was not different between the two groups (p=0.333). The initial drainage volume within 2 days was larger in the open-type group than closed-type group (p=0.024), but the percentage of initial drainage volume per total drainage volume was not different (p=0.354). The duration of catheter insertion was shorter in the open-type group than closed-type group (p=0.015). The reoperation rate of CSDH was also higher in the open-type group than closed-type group (p=0.004). CONCLUSION: CSDH drainage with an open-type catheter is faster compared with a closed-type catheter, but total drainage volume is similar and reoperation rate is higher. Therefore, the open-type catheter for CSDH drainage has limited clinical value.
Adolescent
;
Adult
;
Aged
;
Aged, 80 and over
;
Catheters/*adverse effects
;
Child
;
Child, Preschool
;
Drainage
;
Equipment Design
;
Female
;
Hematoma, Subdural, Chronic/surgery/*therapy
;
Humans
;
Infant
;
Male
;
Middle Aged
;
Retrospective Studies
9.The Psychopathological Influence of Adolescent Idiopathic Scoliosis in Korean Male : An Analysis of Multiphasic Personal Inventory Test Results.
Chang Hyun OH ; Yu Shik SHIM ; Seung Hwan YOON ; Hyeong Chun PARK ; Chong Oon PARK ; Myoung Seok LEE
Journal of Korean Neurosurgical Society 2013;53(1):13-18
OBJECTIVE: There are few published studies which have documented psychopathological abnormalities in patients with of adolescent idiopathic scoliosis (AIS) The aim of this study was to evaluate the psychopathological influence of AIS in Korean 19-year-old males. METHODS: The authors compared the Korean military multiphasic personal inventory (KMPI) military profiles of 105 AIS cases (more than 10 degrees of Cobb's angle without surgical treatment) with the KMPI profiles of 108 normal controls. The AIS group was split depending on Cobb's angle to further evaluate this relation by the severity of AIS. RESULTS: A significantly decreased result on the faking-good response scale and an significantly increased result on the faking-bad response were observed in the AIS group compared to the control (p<0.012). The neurosis scale results, including anxiety, depression and somatization symptoms, were significantly increased in the AIS group compared to the control (p<0.010). The severity level of personality disorder and schizophrenia were also significantly increased in the AIS group (p<0.010). Differences in KMPI scale scores were not related to the severity of AIS. CONCLUSION: Young males with AIS tend to have abnormal results on the multiphasic personal inventory test compared to normal volunteers, suggesting that AIS may be related to psychopathology in the young male group in Korea. Although these psychopathology in AIS were differently observed compared to normal controls, but not interfered with military life. Clinicians are recommended to pay attention the psychopathological traits of patients with AIS.
Adolescent
;
Anxiety
;
Depression
;
Humans
;
Korea
;
Male
;
Military Personnel
;
Personality Disorders
;
Psychopathology
;
Schizophrenia
;
Scoliosis
10.What are the Causative Factors for a Slow, Progressive Enlargement of a Chronic Subdural Hematoma?.
Yu Shik SHIM ; Chong Oon PARK ; Dong Kun HYUN ; Hyung Chun PARK ; Seung Hwan YOON
Yonsei Medical Journal 2007;48(2):210-217
PURPOSE: To test the hypothesis that chronic subdural hematoma (CSDH) enlarges by the causative factors, this study has performed. METERIALS AND METHODS: In 10 patients with CSDH, coagulation factors in venous blood taken at the time of surgery and hematomic contents aspirated from the CSDH were studied, using both laboratory assays and microscopy. RESULTS: When compared to the range of normal plasma, the hematoma fluids demonstrated a marked reduction in factor II, V, VII, VIII, and X, moderate reduction of factors IX and XI, and slight reduction of factor XII. Activated protein C and antithrombin III levels were decreased. The FDP (Fibrinogen Degradation Product) levels in chronic subdural hematoma were extremely high. The endothelial cells of the macrocapillaries (also called "sinusoid") showed numerous gap junctions between adjacent endothelial cells and a thinness or absence of the basement membrane, suggesting that the macrocapillaries are very fragile and susceptible to bleeding. CONCLUSION: Excessive coagulation in the hematoma, predominantly via the extrinsic clotting pathway, local hyperfibrinolysis, transmitted pulsations, and characteristics of the macrocapillaries play an important role in the leakage of blood and the enlargement of CSDH.

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