1.Characterization of Peroxiredoxins in the Gray matter in the spinal cord after Acute Immobilization Stress.
Nam Hyun PAEK ; Seung Soo KWAK ; Dong Seok LEE ; Young Ho LEE
Journal of the Korean Society of Traumatology 2006;19(2):105-112
PURPOSE: Many stresses produce reactive oxygen species and bring about mechanism of antioxidant reaction. Cytokine and a neurotransmitter through the cell membrane, as well as signal transduction through the cell membrane, are used for various pathological condition of the brain, such as neurodegenerative disease. There are several antioxidant enzymes in cells (superoxcide dismutase, glutathion peroxidasae, peroxiredoxin catalase, etc.) METHODS: This study used single- or double-label immunohistochemical techniques to analyze mouse spinal neuron cells expressing Prx I and Prx III after acute mobilization stress. RESULTS: Prx I was observed in dendritic cell of the gray matter of the spinal cord, and Prx III was observed in the cytoplasm of the GM of the spinal cord. CONCLUSION: The results of this study will help to explain differences of expression in the distributions of the peroxiredoxin enzymes of the spinal cord.
Animals
;
Brain
;
Catalase
;
Cell Membrane
;
Cytoplasm
;
Dendritic Cells
;
Immobilization*
;
Mice
;
Neurodegenerative Diseases
;
Neurons
;
Neurotransmitter Agents
;
Peroxiredoxins*
;
Reactive Oxygen Species
;
Signal Transduction
;
Spinal Cord*
2.Characterization of Peroxiredoxins in the Gray matter in the spinal cord after Acute Immobilization Stress.
Nam Hyun PAEK ; Seung Soo KWAK ; Dong Seok LEE ; Young Ho LEE
Journal of the Korean Society of Traumatology 2006;19(2):105-112
PURPOSE: Many stresses produce reactive oxygen species and bring about mechanism of antioxidant reaction. Cytokine and a neurotransmitter through the cell membrane, as well as signal transduction through the cell membrane, are used for various pathological condition of the brain, such as neurodegenerative disease. There are several antioxidant enzymes in cells (superoxcide dismutase, glutathion peroxidasae, peroxiredoxin catalase, etc.) METHODS: This study used single- or double-label immunohistochemical techniques to analyze mouse spinal neuron cells expressing Prx I and Prx III after acute mobilization stress. RESULTS: Prx I was observed in dendritic cell of the gray matter of the spinal cord, and Prx III was observed in the cytoplasm of the GM of the spinal cord. CONCLUSION: The results of this study will help to explain differences of expression in the distributions of the peroxiredoxin enzymes of the spinal cord.
Animals
;
Brain
;
Catalase
;
Cell Membrane
;
Cytoplasm
;
Dendritic Cells
;
Immobilization*
;
Mice
;
Neurodegenerative Diseases
;
Neurons
;
Neurotransmitter Agents
;
Peroxiredoxins*
;
Reactive Oxygen Species
;
Signal Transduction
;
Spinal Cord*
3.Usefulness of Quantified-EEG in Alzheimer's Disease.
Yong Tae KWAK ; Don Soo KIM ; Dong Seok HAHM ; Il Woo HAN
Journal of the Korean Neurological Association 2000;18(5):575-580
BACKGROUND: The conventional electroencephalography (EEG) is commonly used as an aid in the diagnosis of Alzhiemer's disease (AD). Recently developed quantitative electroencephalography (qEEG) provides data that are not achievable by conventional EEG. Nevertheless, the clinical reliability and usefulness of spectral analysis and topographic mapping is still a matter of controversy in the diagnosis of Alzheimer's disease. The aim of this study was to compare the topographical quantitative EEG (qEEG) changes between elderly controls and AD patients. METHODS: We analyzed the absolute, relative spectra power and occipital peak frequency taken from 16 derivations by averaging twenty-2-sec epoch in elderly controls and AD patients. After logarithmic transformations of absolute and relative power, a statistical test was done and occipital peak frequency was compared with each other. RESULTS: (1) Compared with normal controls, AD patients had a significantly lower alpha and beta spectra power as well as a significant higher delta spectra power. (2) In AD patients, the peak frequency in occipital lead had a significantly lower frequency than that of elderly controls. (3) Korean Mini-Mental State Examination(K-MMSE) scores were closely related in delta and alpha band power in nearly all electric leads. (4) Compared to absolute power, relative power was a more sensitive tools in detecting changes of EEG in AD patients. CONCLUSIONS: This study suggests that qEEG is a useful tool for detecting the electroencephalographic changes of AD, and correlated with the severity of cognitive dysfunction. Moreover, absolute and relative spectra power is complementary in the clinical utility of qEEG.
Aged
;
Alzheimer Disease*
;
Diagnosis
;
Electroencephalography
;
Humans
4.Efficacy of loop conization with right-angled triangular shaped excisor in patients with cervical intraepithelial neoplasia 3.
Il Jung CHOI ; Bong Gyu KWAK ; Moon Seok CHA
Korean Journal of Gynecologic Oncology 2006;17(3):222-226
OBJECTIVE: To evaluate the therapeutic value of conization using right-angled triangular shape loop cone biopsy excisor in patients with CIN 3 who want preserve the uterus. METHODS: A retrospective review of 64 patients was performed who underwent therapeutic conization for CIN 3 by using right-angled triangular shape loop cone biopsy excisor from January 2000 to August 2005. RESULTS: The mean duration of 64 follow-up patients who had conization for therapeutic purpose was 21.5 months (range 10-68). Their mean age was 41.1 years old and mean parity was 1.7. Two of 64 patients had CIN 3 on exocervix margin. During the followed up period, only one person (1/64) had relapse of CIN 3, hence, a simple hysterectomy was done. CONCLUSION: Right-angled triangular shape loop cone biopsy excisor is more effective than U-shaped loop with low rate of margin positive and recurrent rate in conservative treatment in CIN 3 patients who want to preserve uterus or fertility.
Biopsy
;
Cervical Intraepithelial Neoplasia*
;
Conization*
;
Female
;
Fertility
;
Follow-Up Studies
;
Humans
;
Hysterectomy
;
Parity
;
Recurrence
;
Retrospective Studies
;
Uterus
5.Simultaneous Vertebral Artery Dissection and Contralateral Posterior Inferior Cerebellar Artery Dissecting Aneurysm.
Young Seok KWAK ; Dong Hun KANG ; Hyun Jin WOO
Journal of Cerebrovascular and Endovascular Neurosurgery 2012;14(3):228-232
The optimal treatment and appropriate follow-up period for an unruptured vertebral artery (VA) and/or posterior inferior cerebellar artery (PICA) dissection have not been established. Decisions regarding treatment of these vascular lesions are usually based on the manifesting symptoms and changes in radiologic findings during the follow-up period. We experienced a patient who had a simultaneous unruptured VA dissection and a contralateral PICA dissecting aneurysm. We did not find such a case in other literature.
Aneurysm, Dissecting
;
Arteries
;
Follow-Up Studies
;
Humans
;
Pica
;
Vertebral Artery
;
Vertebral Artery Dissection
6.The efficacy of MRI to diagnosis the bladder and rectal invasion in cervical cancer.
Il Jung CHOI ; Bong Gyu KWAK ; Moon Seok CHA
Korean Journal of Gynecologic Oncology 2007;18(1):26-31
OBJECTIVE: To evaluate the efficacy of MRI in bladder or rectal invasion of cervical cancer. METHODS: Between January 2000 and December 2005, 106 cervical cancer patients who underwent cystoscopy or sigmoidoscopy examination retrospectively compared with results of the MRI finding. A 5-point invasion score was used to determine bladder or rectal invasion in MRI (1 = no invasion, 3 = serosal invasion, 5 = definite mucosal invasion). Score of 3 or above was suspicious for both rectal and bladder invasion. RESULTS: Eighty one patients with negative for both rectal and bladder invasion in MRI were normal in cystoscopy and sigmoidoscopy. MRI identified 17 patients with suspected bladder invasion, 7 patients had confirmed bladder invasion in cystoscopy. MRI identified 11 patients with suspected rectal invasion, 1 patients had confirmed rectal invasion in sigmoidoscopy. The detection of rectal and bladder invasion by MRI had a negative predictive value of 100%. CONCLUSION: The use of a 5-point scoring system for predicting rectal or bladder invasion in MRI is accurate in detecting cervical cancer patients with no evidence of rectal or bladder invasion. The cervical cancer patients with no evidence of rectal or bladder invasion in MRI can obviate invasive cystoscopy and sigmoidoscopy.
Cystoscopy
;
Diagnosis*
;
Humans
;
Magnetic Resonance Imaging*
;
Retrospective Studies
;
Sigmoidoscopy
;
Urinary Bladder*
;
Uterine Cervical Neoplasms*
7.Neuropsychological Differentiation between Alzheimer's Disease and Vascular Dementia.
Don Soo KIM ; Dong Seok HAHM ; Yong Tae KWAK ; Il Woo HAN
Journal of the Korean Neurological Association 2001;19(2):143-148
BACKGROUND: Neuropsychological Differentiation between Alzheimer's disease and vascular dementia has been controversial. The aim of this study was to detect neuropsychological differences between Alzheimer's disease (AD) and vascular dementia (VD). METHODS: Twenty one patients who met the criteria for probable AD according to the National Institute of Neurological Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) and 22 patients who met criteria for probable VD according to the National Institute of Neurological Disorders and Stroke and the Association Internationale pour la Recherche et l'Enseignement en Neurosciences (NINDS-AIREN), were included in this study. These two dementia groups were matched for age, sex, education, Mini-Mental State Examination score, and severities of dementia. All patients underwent the Seoul Neuropsychological Screening Battery (SNSB). RESULTS: Patients with VD showed greater deficits in verbal fluency (P<.05) than AD patients. However, AD patients, compared with VD patients, showed greater deficits in verbal memory functions including the 3 words recall task. Otherwise, no significant between-group differences were found in task results. CONCLUSIONS: Neuropsychologically, patients with VD differ from patients with AD only in a few cognitive domains. (J Korean Neurol Assoc 19(2):143~148, 2001)
Alzheimer Disease*
;
Dementia
;
Dementia, Vascular*
;
Education
;
Humans
;
Mass Screening
;
Memory
;
National Institute of Neurological Disorders and Stroke
;
Neuropsychological Tests
;
Neurosciences
;
Seoul
8.Neuropsychological Differentiation between Alzheimer's Disease and Vascular Dementia.
Don Soo KIM ; Dong Seok HAHM ; Yong Tae KWAK ; Il Woo HAN
Journal of the Korean Neurological Association 2001;19(2):143-148
BACKGROUND: Neuropsychological Differentiation between Alzheimer's disease and vascular dementia has been controversial. The aim of this study was to detect neuropsychological differences between Alzheimer's disease (AD) and vascular dementia (VD). METHODS: Twenty one patients who met the criteria for probable AD according to the National Institute of Neurological Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) and 22 patients who met criteria for probable VD according to the National Institute of Neurological Disorders and Stroke and the Association Internationale pour la Recherche et l'Enseignement en Neurosciences (NINDS-AIREN), were included in this study. These two dementia groups were matched for age, sex, education, Mini-Mental State Examination score, and severities of dementia. All patients underwent the Seoul Neuropsychological Screening Battery (SNSB). RESULTS: Patients with VD showed greater deficits in verbal fluency (P<.05) than AD patients. However, AD patients, compared with VD patients, showed greater deficits in verbal memory functions including the 3 words recall task. Otherwise, no significant between-group differences were found in task results. CONCLUSIONS: Neuropsychologically, patients with VD differ from patients with AD only in a few cognitive domains. (J Korean Neurol Assoc 19(2):143~148, 2001)
Alzheimer Disease*
;
Dementia
;
Dementia, Vascular*
;
Education
;
Humans
;
Mass Screening
;
Memory
;
National Institute of Neurological Disorders and Stroke
;
Neuropsychological Tests
;
Neurosciences
;
Seoul
9.Choledochocele containing a stone mistaken as a distal common bile duct stone.
Tae Young KWAK ; Chang Hwan PARK ; Seok Hyeon EOM ; Hong Suk HWANG ; Duk Won CHUNG ; Ji Young SEO ; Yeong Sung KIM ; Dong Hyup KWAK
Yeungnam University Journal of Medicine 2015;32(1):60-64
A choledochocele is an expanded sac of the duodenal side of the distal common bile duct (CBD), and is categorized as a type III choledochal cyst. Unlike other choledochal cysts, it can be easily overlooked because of its very low prevalence, non-specific clinical symptoms, and lack of distinctive radiological findings. However, a patient having a repeated pancreaticobiliary disorder with an unknown origin, frequent abdominal pain after cholecystectomy, or repeated non-specific gastrointestinal symptoms can be suspected as having a choledochocele, and a more accurate diagnosis can be achieved via endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound. Because it rarely becomes malignant, a choledochocele can be treated via endoscopic sphincterotomy (EST) and surgical treatment. The authors were able to diagnose choledochocele accompanied by a stone in a patient admitted to the authors' hospital due to cholangitis and pancreatitis. The patient's condition was suspected to have been caused by a distal CBD stone detected via multiple detector computed tomography and ERCP, and was successfully treated via EST.
Abdominal Pain
;
Cholangiopancreatography, Endoscopic Retrograde
;
Cholangitis
;
Cholecystectomy
;
Choledochal Cyst*
;
Common Bile Duct*
;
Diagnosis
;
Gallstones
;
Humans
;
Pancreatitis
;
Prevalence
;
Sphincterotomy, Endoscopic
;
Ultrasonography
10.A Case of Aggravated Hyperplastic Gastric Polyps after Treatment with Long-term Proton Pump Inhibitors.
Ho Tae KIM ; Jong Wan PARK ; Seok Hyeon EOM ; Tae Yeung KWAK ; Hong Suk HWANG ; Yeung Sung KIM ; Dong Hyup KWAK ; Jung Hee KIM
Yeungnam University Journal of Medicine 2013;30(2):141-144
Hyperplastic gastric polyps (HPPs) are the most common type of gastric polyps. They are assumed to be caused by chronic inflammation and regenerative proliferation, although this has not been clearly investigated yet. Many studies suggested the development of fundic gland polyps and carcinoid during long-term proton pump inhibitor (PPI) therapy, but the relationship between PPIs and HPPs is still unclear. We encountered a patient who showed aggravation of HPPs after long-term use of PPIs. A 58-year-old male patient with liver cirrhosis visited our hospital because of hematemesis. We started PPI medication after confirming esophageal variceal bleeding and duodenal ulcer with blood clot in its base via emergency endoscopy. He took PPIs for three years because of an intractable duodenal ulcer. There was a marked increase in the size of the pre-existing polyps and in the development of new polyps. We presumed that the PPIs caused the aggravation of the HPPs, so we stopped their administration. After five months, the HPPs shrank and the polyps were partially degraded. More prospective studies are needed to investigate the relationship between HPPs and PPIs.
Carcinoid Tumor
;
Duodenal Ulcer
;
Emergencies
;
Endoscopy
;
Esophageal and Gastric Varices
;
Hematemesis
;
Humans
;
Inflammation
;
Liver Cirrhosis
;
Male
;
Middle Aged
;
Polyps*
;
Proton Pump Inhibitors*
;
Proton Pumps*
;
Protons*