1.A Case of Peutz-Jeghers Syndrome.
Sang Kie KIM ; Choon Ho PARK ; Jin Heon KIM ; Keun Chul MYUNG ; Chang Soo RA
Journal of the Korean Pediatric Society 1985;28(6):622-626
No abstract available.
Peutz-Jeghers Syndrome*
2.A Case of Myelofibrosis.
Ho Seong YOO ; Jin Heon KIM ; Keun Chul MYUNG ; Chang Soo RA
Journal of the Korean Pediatric Society 1983;26(8):829-834
No abstract available.
Primary Myelofibrosis*
3.The PTPRD (Protein Tyrosine Phosphatase Receptor Type Delta) Gene Polymorphism and Antipsychotic-Induced Restless Legs Syndrome in Schizophrenia.
Ho Jin JUNG ; Chul Hyun CHO ; Seung Gul KANG ; Heon Jeong LEE
Korean Journal of Schizophrenia Research 2014;17(1):43-46
OBJECTIVES: The previous genome-wide association studies have revealed several candidate genes for restless legs syndrome (RLS). The PTPRD (protein tyrosine phosphatase receptor type delta) gene is one of the candidate genes for RLS. The occurrence of antipsychotic-related RLS could also be attributable to differences in genetic susceptibility. This study aimed to investigate whether PTPRD polymorphism is associated with antipsychotic-related RLS in schizophrenia. METHODS: We assessed symptoms of antipsychotic-induced RLS in 190 Korean schizophrenic patients and divided the subjects into two groups according to the International Restless Legs Syndrome Study Group diagnostic criteria : (i) subjects that met all of the criteria (n=44) and (ii) the remaining subjects who were not considered to be RLS patients (n=146). PTPRD rs462664 was genotyped by PCR in 190 individuals. The chi2-test was performed to compare differences between two groups. RESULTS: The frequencies of genotype (chi2=1.31, p=0.519) of the PTPRD rs462664 did not differ significantly between schizophrenic patients with and without RLS. The difference of allele frequencies (chi2=1.30, p=0.25) of the PTPRD rs462664 between the schizophrenic patients with and without RLS were not significant. CONCLUSION: These results suggest that PTPRD gene polymorphism does not play a major role in susceptibility to antipsychotic-related RLS in schizophrenia. This finding suggests that antipsychotic-induced RLS may have a different pathogenesis compared to primary RLS.
Gene Frequency
;
Genetic Predisposition to Disease
;
Genome-Wide Association Study
;
Genotype
;
Humans
;
Polymerase Chain Reaction
;
Restless Legs Syndrome*
;
Schizophrenia*
;
Tyrosine*
4.Combination Gene Therapy Using IL-2 and GM-CSF Genes Transferred by a Defective Infectious Single Cycle Herpes Virus (DISC Virus) in Head and Neck Squamous Cell Cancer Model.
Se Heon KIM ; Won Pyo HONG ; Eun Chang CHOI ; Joo Heon YOON ; Jae Jin CHOI ; Hyun Chul YOON
Korean Journal of Otolaryngology - Head and Neck Surgery 2001;44(1):71-79
BACKGROUND AND OBJECTIVES: The Herpes Simplex type 2 Defective Infectious Single Cycle virus (DISC virus) is an attenuated virus originally produced as a viral vaccine, but it also serves as an efficient gene transfer vehicle. The main goals of this study were to examine determinants of gene transfer using DISC vectors for squamous cell carcinoma and to evaluate the efficacy of vaccination with the DISC virus carrying a combination of immunomodulatory genes (IL-2, GM-CSF) as cancer therapy in a model of squamous cell cancer in the C3H/HeJ mice. MATERIALS AND METHODS: We determinated the gene and protein expression of DISC-IL-2 and DISC-GM-CSF transfected SCCVII cells by RT-PCR and ELISA method. Also, we evaluated the ex vivo vaccination effects of DISC-IL-2 and DISC-GMCSF on preventing the development of SCCVII tumor. RESULTS: SCCVII cells transduced by the DISC virus vector (MOI=10) carrying the IL-2, or the GM-CSF gene, produced nanogram quantities of IL-2 or GM-CSF per 10(6) cells. Of particular interest was the observation that cells irradiated at different doses (5,000 cGy, 10,000 cGy) secreted levels of GM-CSF or IL-2 that were comparable to non-irradiated cells. In vivo vaccination using tumor cells transduced ex vivo with DISC-IL-2 or DISC-GMCSF resulted in protection against subsequent tumor challenge (p<0.01). Among the multiple immunomodulatory transgenes vaccination groups, the DISC-GMCSF transfected vaccine showed the greatest suppression of tumor development and growth (p<0.001). CONCLUSION: These data demonstrate that: 1) The DISC virus vector is capable of efficient gene transfer to SCCVII cells, 2) The GM-CSF secreting, genetically modified tumor vaccine (SCCVII/GMCSF) efficiently protected against tumor cell challenge and suppressed tumor growth in our tumor model. The DISC virus-mediated, cytokine gene transfer may prove to be useful in clinical therapy for head and neck cancers.
Animals
;
Carcinoma, Squamous Cell
;
Enzyme-Linked Immunosorbent Assay
;
Genetic Therapy*
;
Granulocyte-Macrophage Colony-Stimulating Factor*
;
Growth and Development
;
Head*
;
Herpes Simplex
;
Interleukin-2*
;
Mice
;
Neck*
;
Neoplasms, Squamous Cell*
;
Transgenes
;
Vaccination
5.Association between Antipsychotic-Related Restless Legs Syndrome and the RORA Gene Polymorphism in Schizophrenia.
Jin Sook JUNG ; Chul Hyun CHO ; Ho Kyoung YOON ; Seung Gul KANG ; Young Min PARK ; Heon Jeong LEE ; Leen KIM
Korean Journal of Schizophrenia Research 2013;16(2):93-97
OBJECTIVES: The previous studies have suggested genetic vulnerability to restless legs syndrome (RLS) development. The occurrence of antipsychotic-related RLS could also be attributable to differences in genetic susceptibility. This study aimed to investigate whether Retinoid-related orphan receptor A (RORA) gene polymorphism is associated with antipsychotic-related RLS in schizophrenia. METHODS: We assessed symptoms of antipsychotic-induced RLS in 190 Korean schizophrenic patients and divided the subjects into two groups according to the International Restless Legs Syndrome Study Group diagnostic criteria : 1) subjects that met all of the criteria (n=44) and 2) the remaining subjects who were not considered to be RLS patients (n=146). Single-nucleotide polymorphism in the RORA gene was genotyped by PCR in 190 individuals. The chi2-test was conducted to compare differences between two groups. RESULTS: The frequencies of genotype (chi2=0.066, p=0.968) of the RORA gene (rs11071547) did not differ significantly between schizophrenic patients with and without RLS. The difference of allele frequencies (chi2=0.008, p=0.927) of the RORA gene (rs 11071547) between the schizophrenic patients with and without RLS were not significant. CONCLUSION: These results suggest that RORA gene polymorphism does not play a major role in susceptibility to antipsychotic-related RLS in schizophrenia.
Child
;
Child, Orphaned
;
Circadian Rhythm
;
Gene Frequency
;
Genetic Predisposition to Disease
;
Genotype
;
Humans
;
Polymerase Chain Reaction
;
Polymorphism, Genetic
;
Restless Legs Syndrome*
;
Schizophrenia*
6.Two cases of squamous cell carcinoma with staghorn calculi which were progressed fulminantly.
Chang Kyu LEE ; Heon Joong KANG ; Jin Ho CHANG ; Jong Chul KIM ; Hyun RHEW
Korean Journal of Urology 1993;34(4):716-719
We report two cases or squamous cell carcinoma with transitional cell carcinoma synchronouely developed in renal pelvis at a 51 years old male and a 69 years old female who had large renal calculi. Excretory urograms showed non-visualization of diseased kidneys with staghorn calculi and these patients were underwent nephrectomy. On operation, in both cases, each kidney severely adhered to adjacent fat tissue. Postoperative pathologic result was shown to squamous cell carcinoma with high grade transitional cell carcinoma in each cases. These patients were expired within 6 months.
Aged
;
Calculi*
;
Carcinoma, Squamous Cell*
;
Carcinoma, Transitional Cell
;
Female
;
Humans
;
Kidney
;
Kidney Calculi
;
Kidney Pelvis
;
Male
;
Middle Aged
;
Nephrectomy
7.Therapeutic effect of PVB chomotherapy after cytoreductive surgery on a case of seminoma developed in abdominal cryptorchid testes.
Heon Joong KANG ; Chang Kyu LEE ; Jin Ho CHANG ; Jong Chul KIM ; Hyun Yul RHEW
Korean Journal of Urology 1993;34(4):631-634
Testicular tumors were reported sporadically in Korea. Seminomatous germ cell tumor is the most frequent tumor in the testis and it is treated highly effectively with irradiation and/or chemotherapy according to stage. Herein we report a relatively rare case of seminoma developed in abdominal cryptorchid testis of 28 years old male. which was treated with PVB chemotherapy after cytoreductive surgery. Histopathological examination revealed seminoma of stage II B(T3N2MO) by M.D. Anderson hospital classification Postoperative PVB chemotherapy was performed and the tumor was completely remitted at follow up study for 4 years.
Adult
;
Classification
;
Cryptorchidism
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Korea
;
Male
;
Neoplasms, Germ Cell and Embryonal
;
Seminoma*
;
Testicular Neoplasms
;
Testis*
8.Hemodynamic Changes on Phantoms of the Internal Carotid Arterial Stenosis: MRA, DSA and CFD.
Tae Sub CHUNG ; Yoon Chul RHIM ; En Hao JIN ; Dong Hoon LEE ; Jun Heon NOE
Journal of the Korean Radiological Society 1996;34(6):737-744
PURPOSE: The most important factor discrediting the reliability of MRAs is the overestimation of the degree of stenosis in the internal carotid artery(ICA). The purpose of this study is to evaluate the second aryhemodynamics and the cause(s) for the overestimation of the degree of variable stenotic phantoms of the carotidartery using steady-state flow on MRAs. MATERIALS AND METHODS: Using scrylic materials, normal and variable stenotic phantoms of the bifurcated carotid artery were constructed (40% and 65%). Flow patterns were evaluated with axial and coronal imaging of MRAs (2D-TOF and 3D-TOF) and DSAs of phantoms constructed from an automated closed-type circulatory system filled with 10% glucose solution. These findings were then compared with those obtained from CFD. RESULTS: 3D-TOF axial MRA of asymmetrically 40 percent stenotic phantom revealed 40 percent stenosis identical to the stenotic region of phantoms with continued poststenotic signal loss, whereas 3D-TOFzsial MRA of symmetrically 65 percent stenotic phantom showed markedly decreased signal intensity at the poststenotic segment resembling occlusion. Source image of 2D-TOF coronal MRA showed redistribution (from theinternal to external carotid artery side) of the central axis of inflow depending upon the degree of stenosis ofthe ICA ; this redistribution can be a cause of the decreased signal at the poststenotic segment, due to a reduced volume of flow through the stenotic segment. The general hemodynamics of the variable stenotic phantoms on MRA were identical to the hemodynamics on DSA and CFD. CONCLUSION: Although dephasing from turbulent flow and character of maximum intensity projection (MIP) were suggested as the main cause of the decreased poststenotic signal, our study indicated that a hemodynamically redistributed central axis of inflow and reduced flow volume through stenotic channel is one of the basic factors of the decreased signal intensity ot the poststenotic segmenton MRA.
Axis, Cervical Vertebra
;
Carotid Arteries
;
Carotid Artery, External
;
Constriction, Pathologic*
;
Glucose
;
Hemodynamics*
9.Effect of different levels of the dietary protein on long term prognosis of experimental renal damage.
Choon Haeng LEE ; Snag Joo HAN ; Hong Jin LEE ; Won Il PARK ; Kyung Ja LEE ; Young Eui PARK ; Min Chul LEE ; Tae Heon YOON
Journal of the Korean Pediatric Society 1993;36(6):820-829
We examined the effect of various levels of dietary protein on long term prognosis of Adriamycinnephropathy of S-D rat, fed with high protein (30%), intermediately low (10%), and strictly low (5%) protein diet for 15 weeks. 1) In rats fed with strictly low protein diets (5%), proteinuria and serum creatinine decreased and creatinine clearance and histological changes were relatively well preserved. But hypoproteinemia and weight loss were more marked and 2 rats died due to severe ascites and pleural effusion in cachexic state. 2) In rats fed with high protein diets (30%), general health condition and weight gain were relatively well preserved. But there were massive proteinuria, progressive increase in serum creatinine and progressive decrease in creatinine clearance. Focal glomerular sclerosis and severe tubulointerstitial change on histologic examination were marked. 3) With intermediately low protein diet (10%), renal function and pasma protein levels were relatively well preserved compared with high protein diet group. But weight gain did not increase normally. 4) We tentatively conclude that appropriately restricted dietary protein can prevent functional and histological renal damage. But too strict protein restriction aggravate nutitional state and general condition.
Animals
;
Ascites
;
Creatinine
;
Diet
;
Diet, Protein-Restricted
;
Dietary Proteins*
;
Hypoproteinemia
;
Pleural Effusion
;
Prognosis*
;
Proteinuria
;
Rats
;
Renal Insufficiency
;
Sclerosis
;
Weight Gain
;
Weight Loss
10.3 Cases of Synchronous Primary Carcinomas.
Tae Jin KIM ; Kyung Taek LIM ; Hwan Wook JUNG ; Ki Heon LEE ; Jae Uk SHIM ; Young Chul CHUNG ; Dong Ock KIM ; Hong Bok LEE ; Chong Tak PARK
Korean Journal of Gynecologic Oncology and Colposcopy 1999;10(2):183-189
Three cases of synchronous carcinomas of endometrium-fallopian tube, endometrium-cervix and endometrium-ovary are reported. Case 1 is endometrial endometrioid adenocarcinoma with FIGO stageIb, Grade 2 and tubal serous adenocarcinoma with FIGO stage Ib, Grade 2. Case 2 is endometrial serous carcinoma with FIGO stage Ilb and squamous cell carcinoma with FIGO stage Ial. Case 3 is endometrial endometrioid adenocarcinoma with FIGO stage Ia, Grade 1 and ovarian mucinous adenocarcinoma with FIGO stage IIIa, Grade 2. There is much confroversy with respect to staging and management of such cases since these tumors may represent either two synchronously occuring primaries or single primary with metastases. It is suggested that when each tumor is different histological subtype the tumors may be considered as two separate primaries and treatment may be less aggressive. It may be a favorable prognosis. The authors present three cases of synchronous carcinomas with a review of literature.
Adenocarcinoma
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Adenocarcinoma, Mucinous
;
Carcinoma, Endometrioid
;
Carcinoma, Squamous Cell
;
Neoplasm Metastasis
;
Prognosis