1.Retraction: Metabolic Alterations in Parkinson's Disease after Thalamotomy, as Revealed by 1H MR Spectroscopy.
Hyun Man BAIK ; Bo Young CHOE ; Hyoung Koo LEE ; Tae Suk SUH ; Byung Chul SON ; Jae Mun LEE
Korean Journal of Radiology 2007;8(2):184-184
No Abstract Available.
2.Immunohistochemical Localization of a Dopamine Releasing Protein in Human Brain.
Ki Young SHIN ; Sang Do BAE ; Jung Joong KIM ; Seong Man NAU ; Myeong Ok KIM ; Kyung Je CHO ; Bong Hee LEE ; Wan sung CHOI ; Hyun Joon SOHN ; Sang Ho BAIK
Korean Journal of Physical Anthropology 1994;7(2):171-186
In order to elucidate the existence and locality of DARP in the human brain, immunohistochemical identification was done in the brain tissues. This glycoprotein was distributed in paraventricular nucleus and thalamic reticular nucleus of diencephalon, substantia nigra and inferior colliculus of mesencephalon, medial vestibular nucleus, medial longitudinal nucleus, lateral reticular nucleus of medulla oblongata. And they follows a close distribution to that of catecholamine (CA) rich in either CA fiber or CA neuronal cell groups as previously reported by others using tyrosine hydroxylase (TH) as a marker. This striking similarities in the topographic arrangement of the DARP-positive reaction product and the TH-positive reaction product is another argument favoring the view that DARP is involved in the regulation of catecholaminergic neurons.
Brain*
;
Diencephalon
;
Dopamine*
;
Glycoproteins
;
Humans*
;
Inferior Colliculi
;
Medulla Oblongata
;
Mesencephalon
;
Neurons
;
Paraventricular Hypothalamic Nucleus
;
Strikes, Employee
;
Substantia Nigra
;
Tyrosine 3-Monooxygenase
;
Vestibular Nuclei
3.Colon Transit Time May Predict Inadequate Bowel Preparation in Patients With Chronic Constipation.
Hong Jun PARK ; Myeong Hun CHAE ; Hyun Soo KIM ; Jae Woo KIM ; Moon Young KIM ; Soon Koo BAIK ; Sang Ok KWON ; Hee Man KIM ; Kyong Joo LEE
Intestinal Research 2015;13(4):339-345
BACKGROUND/AIMS: We evaluated whether colonic transit time (CTT) can predict the degree of bowel preparation in patients with chronic constipation undergoing scheduled colonoscopy in order to assist in the development of better bowel preparation strategies for these patients. METHODS: We analyzed the records of 160 patients with chronic constipation from March 2007 to November 2012. We enrolled patients who had undergone a CTT test followed by colonoscopy. We defined patients with a CTT > or =30 hours as the slow transit time (STT) group, and patients with a CTT <30 hours as the normal transit time (NTT) group. Boston Bowel Preparation Scale (BBPS) scores were compared between the STT and NTT groups. RESULTS: Of 160 patients with chronic constipation, 82 (51%) were included in the STT group and 78 (49%) were included in the NTT group. Patients with a BBPS score of <6 were more prevalent in the STT group than in the NTT group (31.7% vs. 10.3%, P=0.001). Multivariate analysis showed that slow CTT was an independent predictor of inadequate bowel preparation (odds ratio, 0.261; 95% confidence interval, 0.107-0.634; P=0.003). The best CTT cut-off value for predicting inadequate bowel preparation in patients with chronic constipation was 37 hours, as determined by receiver operator characteristic (ROC) curve analysis (area under the ROC curve: 0.676, specificity: 0.735, sensitivity: 0.643). CONCLUSIONS: Patients with chronic constipation and a CTT >30 hours were at risk for inadequate bowel preparation. CTT measured prior to colonoscopy could be useful for developing individualized strategies for bowel preparation in patients with slow CTT, as these patients are likely to have inadequate bowel preparation.
Colon*
;
Colonoscopy
;
Constipation*
;
Humans
;
Multivariate Analysis
;
ROC Curve
;
Sensitivity and Specificity
4.Proton Magnetic Resonance Spectroscopic Changes of the Primary Motor Cortex and Supplementary Motor Area in Hemiparetic Patients with Corticospinal Tract Injury due to Deep Intracerebral Hematoma.
Dong Joon YANG ; Byung Chul SON ; Hyun Man BAIK ; Sang Won LEE ; Jae Hoon SUNG ; Bo Young CHOE
Journal of Korean Medical Science 2004;19(5):744-749
This study was conducted to investigate the metabolic changes in the motor and motor association cortices following axonal injury in the internal capsule that was caused by deep intracerebral hematoma. Using proton magnetic resonance spectroscopy (1H MRS), the authors studied the primary motor cortices (M-1) and sup-plementary motor areas (SMA) of 9 hemiparetic patients with documentable hemi-paresis of varying severity, and we studied 10 normal volunteers as controls. To measure the M-1 and SMA biochemical changes, 4 separate single volumes of inter-est(VOIs) were located bilaterally in the affected and unaffected hemisphere (AH and UH).1H MRS provided a neuronal and axonal viability index by measuring levels of N-acetylaspartate (NAA) and creatine/phosphocreatine (Cr). The M-1/SMA NAA/Cr ratios of the AH and UH in patients, and the AH and normal volunteers were com-pared. The NAA/Cr ratios of the M-1 and SMA in AH, and the SMA in UH were sig-nificantly lower than those of normal volunteers. These 1H MRS findings indicate that axonal injury in the descending motor pathway at the level of internal capsule could induce metabolic changes in the higher centers of the motor pathway.
Adult
;
Aged
;
Aged, 80 and over
;
Aspartic Acid/*analogs & derivatives/metabolism
;
Basal Ganglia Hemorrhage/metabolism/*pathology
;
Creatine/metabolism
;
Female
;
Humans
;
*Magnetic Resonance Spectroscopy
;
Male
;
Middle Aged
;
Motor Cortex/metabolism/*pathology
;
Paresis/metabolism/*pathology
;
Phosphocreatine/metabolism
;
Protons
;
Pyramidal Tracts/metabolism/*pathology
5.Proton Magnetic Resonance Chemical Shift Imaging(1H-CSI)-directed Stereotactic Brain Biopsy.
Kyung Sool CHANG ; Byung Chul SON ; Moon Chan KIM ; Byung Gil CHOI ; Euy Neying KIM ; Bum Soo KIM ; Bo Young CHOE ; Hyun Man BAIK ; Yong Kil HONG ; Joon Ki KANG
Journal of Korean Neurosurgical Society 2000;29(12):1606-1611
6.Metabolic Alterations in Parkinson's Disease after Thalamotomy, as Revealed by 1H MR Spectroscopy.
Hyun Man BAIK ; Bo Young CHOE ; Hyoung Koo LEE ; Tae Suk SUH ; Byung Chul SON ; Jae Mun LEE
Korean Journal of Radiology 2002;3(3):180-188
OBJECTIVE: To determine, using proton magnetic resonance spectroscopy (1H MRS) whether thalamotomy in patients with Parkinson's disease gives rise to significant changes in regional brain metabolism. MATERIALS AND METHODS: Fifteen patients each underwent stereotactic thalamotomy for the control of medically refractory parkinsonian tremor. Single-voxel 1H MRS was performed on a 1.5T unit using a STEAM sequence (TR/TM/TE, 2000/14/20 msec), and spectra were obtained from substantia nigra, thalamus and putamen areas, with volumes of interest of 7-8ml, before and after thalamotomy. NAA/Cho, NAA/Cr and Cho/Cr metabolite ratios were calculated from relative peak area measurements, and any changes were recorded and assessed. RESULTS: In the substantia nigra and thalamus, NAA/Cho ratios were generally low. In the substantia nigra of 80% of patients (12/15) who showed clinical improvement, decreased NAA/Cho ratios were observed in selected voxels after thalamic surgery (p < 0.05). In the thalamus of 67% of such patients (10/15), significant decreases were also noted (p < 0.05). CONCLUSION: Our results suggest that the NAA/Cho ratio may be a valuable criterion for the evaluation of Parkinson's disease patients who show clinical improvement following surgery. By highlighting variations in this ratio, 1H MRS may help lead to a better understanding of the pathophysiologic processes occurring in those with Parkinson's disease.
Adult
;
Aged
;
Aspartic Acid/*analogs & derivatives/metabolism
;
Brain/*metabolism/pathology
;
Choline/metabolism
;
Female
;
Human
;
Magnetic Resonance Imaging
;
Magnetic Resonance Spectroscopy
;
Male
;
Middle Age
;
Parkinson Disease/*metabolism/pathology/*surgery
;
Protons
;
Putamen/metabolism/pathology
;
Substantia Nigra/metabolism/pathology
;
Thalamus/*metabolism/pathology/*surgery
7.A Multicentre, Multinational, Open-Label, 52-Week Extension Study of Gemigliptin (LC15-0444) Monotherapy in Patients with Type 2 Diabetes Mellitus
Sae Jeong YANG ; Kyung Wan MIN ; Sandeep Kumar GUPTA ; Joong Yeol PARK ; Vyankatesh K.SHIVANE ; Pankaj Kumar AGARWAL ; Doo Man KIM ; Yong Esong KIM ; Sei Hyun BAIK
Diabetes & Metabolism Journal 2021;45(4):606-612
The purpose of this extension study was to assess the long-term efficacy and safety of gemigliptin 50 mg in patients with type 2 diabetes mellitus (T2DM). Patients with T2DM who had completed the initial 24-week study comparing gemigliptin monotherapy with placebo were eligible to enrol. In the open-label, 28-week extension study, all enrolled patients received gemigliptin, regardless of the treatment received during the initial 24-week study period. The mean reduction±standard deviation (SD) in glycosylated hemoglobin (HbA1c) observed after 24 weeks of treatment (–0.6%±1.1%) was further decreased for the gemi-gemi group and the mean change in HbA1c at week 52 from baseline was –0.9%±1.2% (P<0.0001). For the pbo-gemi group, HbA1c decreased after they were switched to gemigliptin, and the mean change in HbA1c at week 52 from baseline was –0.7%±1.2% (P<0.0001). Furthermore, the overall incidence of adverse events demonstrated that gemigliptin was safe and well tolerated up to 52 weeks.
8.A Multicentre, Multinational, Open-Label, 52-Week Extension Study of Gemigliptin (LC15-0444) Monotherapy in Patients with Type 2 Diabetes Mellitus
Sae Jeong YANG ; Kyung Wan MIN ; Sandeep Kumar GUPTA ; Joong Yeol PARK ; Vyankatesh K.SHIVANE ; Pankaj Kumar AGARWAL ; Doo Man KIM ; Yong Esong KIM ; Sei Hyun BAIK
Diabetes & Metabolism Journal 2021;45(4):606-612
The purpose of this extension study was to assess the long-term efficacy and safety of gemigliptin 50 mg in patients with type 2 diabetes mellitus (T2DM). Patients with T2DM who had completed the initial 24-week study comparing gemigliptin monotherapy with placebo were eligible to enrol. In the open-label, 28-week extension study, all enrolled patients received gemigliptin, regardless of the treatment received during the initial 24-week study period. The mean reduction±standard deviation (SD) in glycosylated hemoglobin (HbA1c) observed after 24 weeks of treatment (–0.6%±1.1%) was further decreased for the gemi-gemi group and the mean change in HbA1c at week 52 from baseline was –0.9%±1.2% (P<0.0001). For the pbo-gemi group, HbA1c decreased after they were switched to gemigliptin, and the mean change in HbA1c at week 52 from baseline was –0.7%±1.2% (P<0.0001). Furthermore, the overall incidence of adverse events demonstrated that gemigliptin was safe and well tolerated up to 52 weeks.
9.Endoscopic Sphincterotomy Plus Endoscopic Papillary Large Balloon Dilatation for Large Bile Duct Stones.
Seoung Joon HWANG ; Young Gyun KIM ; Kyu Chul LEE ; Myung Kwan JI ; Hyun Soo KIM ; Soon Goo BAIK ; Kuen Man LEE ; Jin Hyuck CHANG ; Min Su KIM ; Yong Han PAIK ; Se Joon LEE ; Hyo Jin PARK ; Kwan Sik LEE ; Sang In LEE ; Dong Ki LEE
Korean Journal of Gastrointestinal Endoscopy 2006;32(3):184-189
BACKGROUND/AIMS: The extraction of large common bile duct (CBD) stones after an endoscopic sphincterotomy (EST) is successful in 80~90% of cases but it often requires a prolonged time and repeated trials. This study investigated the utility of a combined endoscopic papillary large balloon dilatation (EPLBD) and a mid-incision of an EST (m-EST) method for the removal of large CBD stones. METHODS: Thirty patients with large CBD stones were enrolled in this study. EPLBD was carried out using the one-step inflation of a 15~18 mm diameter balloon after m-EST. RESULTS: The maximum stone diameter was 21.62+/-5.38 mm. Twelve patients had more than 4 stones, 7 patients had 2 stones, and the remainder had a single large stone. Complete ductal clearance was achieved in all patients. After the procedure, the serum amylase and/or lipase levels were elevated in 3 patients (13.3%). However, there was no episode of true pancreatitis. Minor bleeding was encountered in only one patient (3.3%), and was easily controlled by an endoscopic epinephrine injection. The procedure was carried out safely in 6 patients with periampullary diverticulum. No perforation or mortality was encountered. CONCLUSIONS: Combined EPLBD and m-EST is a safe and effective method, and may be a good alternative treatment for removing large CBD stones.
Amylases
;
Bile Ducts*
;
Bile*
;
Choledocholithiasis
;
Common Bile Duct
;
Dilatation*
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Diverticulum
;
Epinephrine
;
Hemorrhage
;
Humans
;
Inflation, Economic
;
Lipase
;
Mortality
;
Pancreatitis
;
Sphincterotomy, Endoscopic*
10.One Case of Neuroblastoma arising in Mature Cystic Teratoma of the Ovary.
Kyeong A YEO ; Jeong Ja KIM ; Ki Beom KIM ; Sun Man KWON ; Eun Jeong BAIK ; Ku Taek HAN ; Jong Gu RHA ; Soo Pyung KIM ; Hun Young LEE ; Hyun Joo CHOI ; Young Shin KIM ; Kyo Young LEE ; Chang Suk KANG ; Sang In SHIM
Korean Journal of Gynecologic Oncology and Colposcopy 1998;9(3):312-315
The incidence of malignant change of ovarian mature teratoma is 1~2%. The majority is squamous cell cancer, the others was adenocarcinoma. Neuroepithelial tissue was frequently detected in mature cystic teratoma, but their malignant change was extremely rare. Only, two cases of neuroblastoma of ovarian teratoma were reported in the world. We report one case of neuroblastoma arising in ovarian mature teratoma with a brief review. Our case is the third reported one in the world.
Adenocarcinoma
;
Female
;
Incidence
;
Neoplasms, Squamous Cell
;
Neuroblastoma*
;
Ovary*
;
Teratoma*