1.Association of FOXP3 Single Nucleotide Polymorphisms With Clinical Outcomes After Allogenic Hematopoietic Stem Cell Transplantation.
Minjeong NAM ; Sue SHIN ; Kyoung Un PARK ; Inho KIM ; Sung Soo YOON ; Tack Kyun KWON ; Eun Young SONG
Annals of Laboratory Medicine 2018;38(6):591-598
BACKGROUND: Forkhead box P3 (FOXP3) is an important marker of regulatory T cells. FOXP3 polymorphisms are associated with autoimmune diseases, cancers, and allograft outcomes. We examined whether single nucleotide polymorphisms (SNPs) at the FOXP3 locus are associated with clinical outcomes after allogenic hematopoietic stem cell transplantation (HSCT). METHODS: Five FOXP3 SNPs (rs5902434, rs3761549, rs3761548, rs2232365, and rs2280883) were analyzed by PCR-sequencing of 172 DNA samples from allogenic HSCT patients. We examined the relationship between each SNP and the occurrence of graft-versus-host disease (GVHD), post-HSCT infection, relapse, and patient survival. RESULTS: Patients with acute GVHD (grades II-IV) showed higher frequencies of the rs3761549 T/T genotype, rs5902434 ATT/ATT genotype, and rs2232365 G/G genotype than did patients without acute GVHD (P=0.017, odds ratio [OR]=5.3; P=0.031, OR=2.4; and P=0.023, OR=2.6, respectively). Multivariate analysis showed that the TT genotype of rs3761549 was an independent risk factor for occurrence of acute GVHD (P=0.032, hazard ratio=5.6). In contrast, the genotype frequencies of rs3761549 T/T, rs5902434 ATT/ATT, and rs2232365 G/G were lower in patients with post-HSCT infection than in patients without infection (P=0.026, P=0.046, and P=0.031, respectively). CONCLUSIONS: rs3761549, rs5902434, and rs2232365 are associated with an increased risk of acute GVHD and decreased risk of post-HSCT infection.
Allografts
;
Autoimmune Diseases
;
DNA
;
Genotype
;
Graft vs Host Disease
;
Hematopoietic Stem Cell Transplantation*
;
Hematopoietic Stem Cells*
;
Humans
;
Multivariate Analysis
;
Odds Ratio
;
Polymorphism, Single Nucleotide*
;
Recurrence
;
Risk Factors
;
T-Lymphocytes, Regulatory
2.VEGF and Ki-67 Overexpression in Predicting Poor Overall Survival in Adenoid Cystic Carcinoma.
Seongyeol PARK ; Soo Jeong NAM ; Bhumsuk KEAM ; Tae Min KIM ; Yoon Kyung JEON ; Se Hoon LEE ; J Hun HAH ; Tack Kyun KWON ; Dong Wan KIM ; Myung Whun SUNG ; Dae Seog HEO ; Yung Jue BANG
Cancer Research and Treatment 2016;48(2):518-526
PURPOSE: The purpose of this study was to evaluate potential prognostic factors in patients with adenoid cystic carcinoma (ACC). MATERIALS AND METHODS: A total of 68 patients who underwent curative surgery and had available tissue were enrolled in this study. Their medical records and pathologic slides were reviewed and immunohistochemistry for basic fibroblast growth factor, fibroblast growth factor receptor (FGFR) 2, FGFR3, c-kit, Myb proto-oncogene protein, platelet-derived growth factor receptor beta, vascular endothelial growth factor (VEGF), and Ki-67 was performed. Univariate and multivariate analysis was performed for determination of disease-free survival (DFS) and overall survival (OS). RESULTS: In univariate analyses, primary site of nasal cavity and paranasal sinus (p=0.022) and Ki-67 expression of more than 7% (p=0.001) were statistically significant factors for poor DFS. Regarding OS, perineural invasion (p=0.032), high expression of VEGF (p=0.033), and high expression of Ki-67 (p=0.007) were poor prognostic factors. In multivariate analyses, primary site of nasal cavity and paranasal sinus (p=0.028) and high expression of Ki-67 (p=0.004) were independent risk factors for poor DFS, and high expression of VEGF (p=0.011) and Ki-67 (p=0.011) showed independent association with poor OS. CONCLUSION: High expression of VEGF and Ki-67 were independent poor prognostic factors for OS in ACC.
Adenoids*
;
Carcinoma, Adenoid Cystic*
;
Disease-Free Survival
;
Fibroblast Growth Factor 2
;
Humans
;
Immunohistochemistry
;
Medical Records
;
Multivariate Analysis
;
Nasal Cavity
;
Prognosis
;
Proto-Oncogenes
;
Receptors, Fibroblast Growth Factor
;
Receptors, Platelet-Derived Growth Factor
;
Risk Factors
;
Vascular Endothelial Growth Factor A*
3.Antiangiogenic Activity of Acer tegmentosum Maxim Water Extract in Vitro and in Vivo.
Eok Cheon KIM ; So Hun KIM ; Shan Ji PIAO ; Tack Joong KIM ; Kiho BAE ; Han Sung KIM ; Soon Sun HONG ; Byoung Ick LEE ; Moonsuk NAM
Journal of Korean Medical Science 2015;30(7):979-987
Angiogenesis, the formation of new blood vessels, is critical for tumor growth and metastasis. Notably, tumors themselves can lead to angiogenesis by inducing vascular endothelial growth factor (VEGF), which is one of the most potent angiogenic factors. Inhibition of angiogenesis is currently perceived as one of the most promising strategies for the blockage of tumor growth. In this study, we investigated the effects of Acer tegmentosum maxim water extract (ATME) on angiogenesis and its underlying signal mechanism. We studied the antiangiogenic activity of ATME by using human umbilical vein endothelial cells (HUVECs). ATME strongly inhibited VEGF-induced endothelial cell proliferation, migration, invasion, and tube formation, as well as vessel sprouting in a rat aortic ring sprouting assay. Moreover, we found that the p44/42 mitogen activated protein (MAP) kinase signaling pathway is involved in the inhibition of angiogenesis by ATME. Moreover, when we performed the in vivo matrigel plug assay, VEGF-induced angiogenesis was potently reduced when compared to that for the control group. Taken together, these results suggest that ATME exhibits potent antiangiogenic activity in vivo and in vitro and that these effects are regulated by the extracellular regulated kinase (ERK) pathway.
Acer/*metabolism
;
Angiogenesis Inhibitors/*pharmacology
;
Animals
;
Cell Line, Tumor
;
Cell Movement/drug effects
;
Cell Proliferation/drug effects
;
Cell Survival
;
Extracellular Signal-Regulated MAP Kinases/*metabolism
;
Hep G2 Cells
;
Human Umbilical Vein Endothelial Cells/*drug effects
;
Humans
;
MAP Kinase Signaling System/drug effects
;
Mice
;
Mice, Inbred C57BL
;
Mitogen-Activated Protein Kinase 1/metabolism
;
Neoplasm Invasiveness/pathology
;
Neovascularization, Pathologic/*drug therapy/prevention & control
;
Nitric Oxide Synthase Type III/metabolism
;
Phosphorylation/drug effects
;
Plant Extracts/pharmacology
;
Rats
;
Rats, Sprague-Dawley
;
Transcription Factors/metabolism
;
Vascular Endothelial Growth Factor A/antagonists & inhibitors/metabolism
4.Relationship Between Systemic Thrombogenic or Thrombolytic Indices and Acute Increase of Spontaneous Intracerebral Hemorrhage.
Tack Geun CHO ; Jong Chul LEE ; Seung Won PARK ; Chan CHUNG ; Taek Kyun NAM ; Sung Nam HWANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2014;16(3):159-165
OBJECTIVE: The objective of this study was to determine the correlations between changes in thrombogenesis or thrombolysis related factors, and the acute increase of a spontaneous intracerebral hemorrhage (sICH). MATERIALS AND METHODS: From January 2009 to October 2011, 225 patients with sICH were admitted to our hospital within 24 hours of onset. Among them, 111 patients with hypertensive sICH were enrolled in this study. Thrombogenic or thrombolytic factors were checked at admission. The authors checked computed tomography (CT) scans at admission and followed up the next day (between 12-24 hours) or at any time when neurologic signs were aggravated. Cases in which the hematoma was enlarged more than 33% were defined as Group A and the others were defined as Group B. RESULTS: Group A included 30 patients (27%) and group B included 81 patients (73%). Factors including activated partial thromboplastin time, prothrombin time, fibrinogen, and D-dimer showed a greater increase in group A than in group B. Factors including antithrombin III, factor V, and factor X showed a greater increase in group A than in group B. CONCLUSION: Based on the results of this study, it seems that the risk of increase in hematoma size can be predicted by serum thrombogenic or thrombolytic factors at admission.
Antithrombin III
;
Cerebral Hemorrhage*
;
Factor V
;
Factor X
;
Fibrinogen
;
Hematoma
;
Humans
;
Neurologic Manifestations
;
Partial Thromboplastin Time
;
Prothrombin Time
5.Salvage Surgical Treatment for Failed Endovascular Procedure of a Blood Blister-Like Aneurysm.
Tack Geun CHO ; Sung Nam HWANG ; Taek Kyun NAM ; Seung Won PARK
Journal of Cerebrovascular and Endovascular Neurosurgery 2012;14(2):99-103
The blood blister-like aneurysm (BBA) of the internal carotid artery (ICA) is a rare but clinically important cause of subarachnoid hemorrhage (SAH), which accounts for 0.5% of incidences of ruptured intracranial aneurysms. BBA is a thin-walled, broad-based aneurysm that lacks an identifiable neck and is one of the most difficult lesions to treat. In this paper, a case is presented of a 57-year-old woman with SAH. Her cerebral angiography demonstrated a small BBA on the dorsal wall of her right ICA. Endovascular treatment that consisted of a stent-within-a-stent was attempted, but the replacement of the second stent failed, and the aneurysm became bigger. Surgery was performed by clipping the BBA with a Sundt slim-line encircling graft clip. The patient completely recovered with no complications. This treatment may be a salvageable option for BBA, especially when endovascular treatment has failed.
Aneurysm
;
Carotid Artery, Internal
;
Cerebral Angiography
;
Endovascular Procedures
;
Female
;
Humans
;
Incidence
;
Intracranial Aneurysm
;
Middle Aged
;
Neck
;
Stents
;
Subarachnoid Hemorrhage
;
Transplants
6.Glossopharyngeal Neuralgia Caused by Arachnoid Cyst in the Cerebellopontine Angle.
Tack Geun CHO ; Taek Kyun NAM ; Seung Won PARK ; Sung Nam HWANG
Journal of Korean Neurosurgical Society 2011;49(5):284-286
Glossopharyngeal neuralgia is a relatively rare condition characterized by severe, paroxysmal episodes of lancinating pain in the tongue, throat, ear, and tonsil. This disorder is assumed to be due to compression of the glossopharyngeal nerve by vascular structures. A 47-year-old woman complaining of sharp and lancinating pain in the right periauricular and submandibular areas visited our hospital. Swallowing, chewing, and lying on her right side triggered the pain. Her neurologic examination revealed no specific abnormalities. The results of routine hematologic and blood chemistry studies were all within normal limits. Carbamazepine and gabapentin were given, but her symptoms persisted. Her pain was temporarily relieved only by narcotic pain medication. MRI showed an arachnoid cyst located in the right cerebellomedullary cistern extending to the cerebellopontine cistern. Cyst removal was performed via a right retrosigmoid approach. Lateral suboccipital craniotomy was performed using the right park-bench position. After opening the dura and cerebellopontine angle, the arachnoid cyst was exposed. The arachnoid cyst was compressing the flattened lower cranial nerves at the right jugular fossa. Her symptoms resolved postoperatively. Two months after the operation, she was completely free from her previous symptoms.
Amines
;
Arachnoid
;
Carbamazepine
;
Cerebellopontine Angle
;
Cranial Nerves
;
Craniotomy
;
Cyclohexanecarboxylic Acids
;
Deception
;
Deglutition
;
Ear
;
Female
;
gamma-Aminobutyric Acid
;
Glossopharyngeal Nerve
;
Glossopharyngeal Nerve Diseases
;
Humans
;
Mastication
;
Middle Aged
;
Neurologic Examination
;
Palatine Tonsil
;
Pharynx
;
Tongue
7.Clinical Pathway for Childhood Asthma in an Emergency Department: Comparison Between the Correct Versus Incorrect Application Groups.
Ji Sun NAM ; Yeon Soo CHO ; Yoon Hong CHUN ; Jong seo YOON ; Hyun Hee KIM ; Jin Tack KIM ; Joon Sung LEE
Pediatric Allergy and Respiratory Disease 2010;20(4):256-263
PURPOSE: This study aimed to determine whether the standard clinical pathway based on evidence is applicable to pediatric asthma patients in the emergency room, and whether it is better for treatment effectiveness. METHODS: The clinical pathway was applied to children who visited our emergency room due to acute asthma between January 1 and December 31, 2009. Medical records of the emergency room were reviewed to see if the clinical pathway was correctly applied. The patients were divided into 2 groups: those who the pathway was correctly applied and those who the pathway was incorrectly applied to (group B, n=41). RESULTS: Acute asthma exacerbation occurred in 24 children (47%) in group A, while it occurred in 27 children (53%) in group B. The majority of patients in group B had moderate asthma exacerbation. The incorrect application of the clinical pathway and no use or insufficient use of inhaled anticholinergics was most frequently noted. The most common cause for the incorrect application of the clinical pathway was its misunderstanding of residents. The hospitalization rate was higher in group B than in group A. CONCLUSION: The application of the clinical pathway to pediatric asthma patients in the emergency room increased treatment effectiveness. However, training for the residents and intensive care for the patient with moderate asthma exacerbation are necessary for correct application of the clinical pathway.
Asthma
;
Child
;
Cholinergic Antagonists
;
Critical Pathways
;
Emergencies
;
Hospitalization
;
Humans
;
Critical Care
;
Medical Records
;
Treatment Outcome
8.Risk Factors for Lymph Node Metastasis in Patients with Submucosal Invasive Colorectal Carcinoma.
Hye Young SUNG ; Won Kyung KANG ; Sang Woo KIM ; Kwan Woo NAM ; Chan Kwon JUNG ; Jae Hyuck CHANG ; Yu Kyung CHO ; Jae Myung PARK ; In Seok LEE ; Jae Im LEE ; Seong Tack OH ; Myung Gyu CHOI ; In Sik CHUNG
Journal of the Korean Surgical Society 2010;78(4):207-212
PURPOSE: This study was designed to determine the risk factors of lymph node (LN) metastasis in patients with submucosal invasive colorectal cancer (SICC). METHODS: Between January 1998 and January 2009, we reviewed patients who had undergone radical colon resection with LN dissection for SICC. RESULTS: There were 36 males and 40 females (mean age, 61.1 years; range, 35~86 years). In the univariate analysis, the risk of LN metastasis was related to the depth (absolute and relative), lymphovascular invasion, tumor budding, and tumor differentiation (P<0.05). The relative depth by Kudo classification and lymphovascular invasion were significant predictors of LN metastasis both in univariate and multivariate analysis. In SICC with an absolute depth <1,800 microm, no LN metastasis was detected. Regardless of the size of the SICC, tumors that invaded within the sm2 layer and had no lymphovascular invasion had no LN metastasis. CONCLUSION: In the SICC, lymphovascular invasion and depth of submucosal invasion are strong predictors of LN metastasis. If deep invasion exceeds sm2 and positive lymphovascular invasion exists in the resected specimen, additional colectomy with LN dissection appears to be necessary.
Colectomy
;
Colon
;
Colorectal Neoplasms
;
Female
;
Humans
;
Lymph Nodes
;
Male
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Risk Factors
9.Experience of Open Herniorrhaphy Using the PerFix(R) Plug for Patients with Recurrent Groin Hernias.
Sung Bae JI ; Yu Hee NAM ; Young Tack SONG
Journal of the Korean Surgical Society 2008;74(4):282-285
PURPOSE: The recurrence of a groin hernia presents few surgical options for repair. We investigated the safety and efficacy of herniorrhaphy using PerFix(R) plug for patients with recurrent groin hernias. METHODS: Between October 2000 and December 2004, 30 herniorrhaphies for recurrent groin hernia were performed and followed-up. The operation time, length of hospital stay, time of analgesic use, complication rates, and recurrence were investigated. RESULTS: Surgery had been initially performed in 26 patients with the non-mesh method, and with mesh in 4 patients; 12 patients had a direct recurrence at the medial side of the inguinal area near the pubic tubercle, 7 patients had a direct recurrence at other sites, and 11 patients had an indirect recurrence. Eight patients had urinary retention and 2 patients had minor wound complications. Hospital stays and analgesic use were comparable to non-recurrent groin hernia operations, although operation time was significantly longer in recurrent group, and there were no recurrences during the 70 months of followup. CONCLUSION: Comparing open or laparoscopic preperitoneal approach, the PerFix(R) plug method is simple and effective for recurrent groin hernia repair.
Follow-Up Studies
;
Groin
;
Hernia
;
Herniorrhaphy
;
Humans
;
Length of Stay
;
Recurrence
;
Urinary Retention
10.Percutaneous Radiofrequency Facet Rhizotomy for Cervical Dorsal Ramus Syndrome.
Tack Geun CHO ; Sung Nam HWANG ; Seung Won PARK ; Taek Kyun NAM ; Hyun Jong HONG ; Young Baeg KIM
Journal of Korean Neurosurgical Society 2006;40(6):419-422
OBJECTIVE: Radiofrequency facet rhizotomy(RFFR) has been widely performed for treatment of chronic neck pain caused by cervical dorsal ramus syndrome(CDRS). To evaluate the therapeutic effectiveness of RFFR in the patients with CDRS, we analyzed patients with various cervical pathologic conditions. METHODS: The therapeutic results in forty-four patients who underwent RFFR for CDRS from January, 2000 to December, 2002 were analyzed according to the underlying pathologic conditions causing CDRS. The pathologic conditions were sprain (33 cases), herniated nucleus pulposus (6), foraminal stenosis (4), and compression fracture (1). The therapeutic results were evaluated one month after the operation and graded as excellent, good, fair or poor. Treatments were considered successful if the therapeutic results were graded as either excellent or good. RESULTS: The overall success rate in all patients was 72.7%. The success rate for treatment of cases with cervical sprain was 87.9%, but treatment of cases with herniated nucleus pulposus, foraminal stenosis, and fracture showed unsatisfactory results (mean success rate was 27.3%). Some patients complained of transient hypesthesia (4 cases) or transient dull pain at the electrode insertion sites (2 cases). CONCLUSION: RFFR is an effective and safe treatment for CDRS caused by cervical sprain, regardless of the patient's age, the duration of the symptoms, and the presence of radiating pain.
Constriction, Pathologic
;
Electrodes
;
Fractures, Compression
;
Humans
;
Hypesthesia
;
Neck Pain
;
Rhizotomy*
;
Sprains and Strains

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