1.The epidemiological studies on the filariasis in Korea II. Distribution and prevalence of malayian filariasis in southern Korea.
Byong Seol SEO ; Han Jong RIM ; Young Chan LIM ; Il Kwon KANG ; Young Ok PARK
The Korean Journal of Parasitology 1968;6(3):132-141
During 1964 to 1967, a survey of 30,534 persons for filariasis was made on all over the country with the following results: Among 24,816 draftees from all over the country in the army recruitment camp 155(0.63 %) were found infected with Brugia malayi. Cheju Do showed the highest microfilaria rate(3.5 %), North Kyongsang Do(1.4 %) the next and South Cholla Do(1.2 %) the third. Blood films from 2,308 inhabitants were examined and 407(17.6 %) showed microfilaria in Cheju Do. 30(3.1 %) out of 974 inhabitants in North Kyongsang Do were found to be infected. The microfilaria rates were 2.0 per cent for 400 inhabitants of Chindo island in South Cholla Do. However, no positive case of microfilaria was found in the inhabitants of Kokumdo among 1,820 persons examined in South Cholla Do and of Namhae island(among 165 persons examined) in South Kyongsang Do. The mean microfilarial density per 20 cu. mm of blood was 52.6 in the inhabitants of Cheju Do, 12.2 in North Kyongsang Do and 27.3 in Chindo island(South Cholla Do). Any distinct relationship between the incidence of positive cases of microfilariae and age or sex of the cases was not observed in Cheju Do. However, in Norh Kyongsang Do and South Cholla Do the microfilaria rate of the male group is higher than the one of the female group of the inhabitants. From the above survey results it turned out that filariasis was found throughout Southern Korea except Kyonggi Do and South Kyongsang Do. A total 30,534 persons examined, 601(2.0 %) were found to be infected by Brugia malayi. Therefore, it seems that there are some endemic foci of malayian filariasis in three main areas such as North Kyongsang Do, South Cholla Do and Cheju Do.
parsitology-helminth-nematoda-Brugia malayi
;
filariasis
;
epidemiology
;
Army
2.Klinefelter's syndrome: 16 cases.
Korean Journal of Urology 1991;32(2):319-323
Klinefelter's syndrome is found very often among patients whose chief complaint is sterility or genital deformity. In order to discover the clinical manifestations of Klinefelter's syndrome as well as the proper treatment for it, we made some clinical observations. A total of 19 cases were found to have 47, XXY, a typical chromosomal pattern of Klinefelter's syndrome. Observation was made on the 16 cases whose clinical observation was possible. The patients' average age was 26, and their chief complaints were sterility, small testis, gynecomastia, impotence, and cryptorchidism. The testicular volume was under 5ml for all 16 cases. Nine patients who married were sterile and 6 were gynecomastia. The results of semen analysis showed azoospermia in all cases. The biopsy for the patient with cryptorchidism revealed hyalinized seminiferous tubules, thickened basement membrane, and hyperplasia of the interstitial cells. On the hormonal study, plasma FSH was 28.8-80.4 mIU/ ml (N:1-15 mIU /ml) and plasma LH was 18.1-152 mIU/ml (N:1-15 mIU/ml). The plasma testosterone was 0.7-3.8 ng/ml (N:3-10 ng/ml). Treatment was hormonal therapy with testosterone. For two patients who showed gynecomastia, mastectomy was performed. Orchiectomy was performed for one patient with cryptorchidism.
Azoospermia
;
Basement Membrane
;
Biopsy
;
Congenital Abnormalities
;
Cryptorchidism
;
Erectile Dysfunction
;
Gynecomastia
;
Humans
;
Hyalin
;
Hyperplasia
;
Infertility
;
Klinefelter Syndrome*
;
Male
;
Mastectomy
;
Orchiectomy
;
Plasma
;
Semen Analysis
;
Seminiferous Tubules
;
Testis
;
Testosterone
3.Detection of Chemokine Gene Expression Induced by IL-12/IL-2 in Renca Tumor.
Jong Wook PARK ; Soo Jung YOON ; Seong Il SUH ; In Sook HAN ; Young Kwon KIM
Korean Journal of Immunology 1999;21(1):17-24
In order to evaluate antitumor rnechanisms of interleukin (IL)-12/IL-2 that has been shown significant tumor suppressive activity on established primary and metastatic Renca tumor, we studied chemokine gene expression induced by direct action of IL- 12/IL-2 or cytokine cascade. IL-12/IL-2 induced gene expression of interferon gamma (IFN-r) and granulocyte monocyte-colony stimulating factor (GM-CSF) in splenocytes, and it induced gene expression of monokine induced by IFN-r (Mig), interferon inducible protein 10 (IP- 10), SDF-1, macrophage inflammatory protein (MIP)-1a, MIP-1B, MIP-2, monocyte chemotactic protein (MCP)-1, and Rantes in tumor mass. However IL-12/IL-2 could not induce these chemokines in tumor mass of GKO mice and Renca cell in vitro. IL- 12 also did not increased chemokine gene expression in Renca cell in vitro, but IFN-r induced gene expression of Mig, IP-10, MCP-1 in Renca cell in vitro. In the chemotaxis assay, culture supernatant of Renca cell stimulated with IFN-r increased splenocyte migration in vitro. All these data suggest IL-12/IL-2 can induce IFN-r-chemokine cascade in tumor mass, and Mig, IP-10, MCP-1 produced from tumor cell may play an important role for initial immune cell migration into tumor mass.
Animals
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Cell Movement
;
Chemokine CCL5
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Chemokine CXCL10
;
Chemokines
;
Chemotaxis
;
Gene Expression*
;
Granulocytes
;
Interferons
;
Interleukins
;
Macrophages
;
Mice
;
Monocytes
4.Title Delayed Central Conduction Time on Brainstem Auditory Evoked Potential Pathway in Diabetic Patients: Functional Origin? Or Structural Origin?.
Ki Han KWON ; Byung Chul LEE ; Sung Min KIM ; Keun Yong UM ; Jong Seok BAE
Journal of the Korean Neurological Association 1999;17(3):389-393
BACKGROUND: It has been well known that absolute and interpeak latencies of brainstem auditory evoked potentials (BAEP) are usually prolonged in diabetics. However, Its etiology is still controversial. We tried to identify whether the cause is structural or metabolic in origin by performing BAEP and brain MRI in the diabetic patients. METHODS: BAEP were performed in both the diabetic patients (DM) group (16 males and 15 females) and the normal control group (25 males and 33 female). A brain MRI was performed in the DM group on those who showed abnormal BAEP and com-pared the results of BAEP of the DM group with those of the control group. RESULTS: 7 patients (22.6%) showed abnor-mal BAEP (male; 6, female; 1, unilateral; 4, bilateral; 3) when abnormal BAEP was defined as being larger than two and a half standard deviations of the control group BAEP results. Two males of the DM group who showed abnormal structural lesions of the pons in their brain MRI were not included in the statistical analysis. The remaining 14 diabetic male patients (mean age: 58.7 +/-9.1 years, mean disease duration: 6.1 +/-4.7 years, mean hemoglobin (Hb) A1C: 7.7 +/- 2.0%) and 15 diabetic female patients (mean age: 60.6 +/-10.8 years, mean disease duration: 5.4 +/-5.1 years, mean HgA1C: 7.8 +/-2.1%) were stastistically analyzed. Interpeak latencies of I-III, III-V, and I-V were found to be signifi-cantly prolonged in the DM group. The prolongation of interpeak latencies of I-III and I-V were found to be signifi-cantly correlated with the disease duration only in the diabetic female patients, but not with age and HbA1c. CONCLUSIONS: These findings suggest that both metabolic derangement and structural lesion contribute to prolonging the central conduction time on BAEP pathway in diabetics.
Brain
;
Brain Stem*
;
Diabetes Mellitus
;
Evoked Potentials, Auditory, Brain Stem*
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Pons
5.A prediction of bony interference between proximal and distal segment of the mandible with integrated 3d solid model and dental cast in orthognathic surgery.
Tae Geon KWON ; Sang Han LEE ; Jong Bae KIM ; Ki Young NAM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2003;29(3):163-168
Three-dimensional solid model has not been widely used in surgical prediction of orthognathic surgery because freque from occlusal restorations or prosthesis limited the usefulness of simulated surgery involving occlusion. We prepared three-dimensional(3D) solid model from CT data and integrated the 3D solid model with dental cast using a face-bow transfer technique combined with skeletal reference measurement and confirmation with cephalometric radiographs. With this simple and easy method, it was possible to predict bony interference between the proximal and distal segment of the mandible so that we can prevent condylar displacement after sagittal split ramus osteotomy of the mandible with prominent asymmetry. The method error was within 2mm and it seemed to be useful in preoperative planning for maxillofacial surgery with maxillo-mandibular occlusal change
Mandible*
;
Orthognathic Surgery*
;
Osteotomy, Sagittal Split Ramus
;
Prostheses and Implants
;
Surgery, Oral
6.Experience of Posterior Urethral Valves with Vesicoureteral Reflux.
Jong Kwon KIM ; Young Nam WOO ; Done Han KIM
Korean Journal of Urology 1990;31(4):513-518
A retrospective review was undertaken of 5 pediatric cases of posterior urethral valve with vesicoureteral reflux. The clinical data were summarized as follows : 1. At the time of diagnosis, patient age was recorded as 2 months, 3, 4, 13, and 14 years. Three cases presented with high fever, one with urinary dribbling and one with acute epididymitis. 2. Voiding cystourethrogram was abnormal in all cases, showing thickened, trabeculated bladder wall, dilatation of posterior urethra and vesicoureteral reflux. Vesicoureteral reflux was bilateral in 3 cases, unilateral in 2 cases and its degree was grade R-V/V in 8 renal units, grade E/V in one renal unit. 3. Initially transurethral valve ablation was performed in all cases, of which 2 had concomitant antireflux surgery and 3 had delayed ureteral reconstruction between one and 11 months after valve ablation. 4. Follow up duration was between 13 and 53months. In 4 cases, reflux disappeared and the pyelographic appearance markedly improved as regards pelvocalyceal and ureteral dilatation with improvement of general status at followup. But, in one case that had demonstrated bilateral high grade vesicoureteral reflux with sever ureteral dilatation and poor renal function, voiding symptom and radiologic appearance improved but left vesicoureteral reflux persisted by 13 months after reconstructive surgery.
Diagnosis
;
Dilatation
;
Epididymitis
;
Fever
;
Follow-Up Studies
;
Humans
;
Male
;
Retrospective Studies
;
Ureter
;
Urethra
;
Urinary Bladder
;
Vesico-Ureteral Reflux*
7.Continent Ileal Reservoir.
Jin Han YOON ; Heon Young KWON ; Moon Ki JUNG ; Jong Byung YOON
Korean Journal of Urology 1987;28(2):224-232
A new method of urinary diversion via Skinner`s modification of Koch continent ileal reservoir was tried. With this method continence with storage of urine under low pressure is well maintained so that no external applicances are necessary. Ileorenal reflux is also prevented with this nipple forming technique. From May l986 to September l986, 4 patients underwent urinary diversion that included creation of a modified Koch pouch by Skinner. Previous urinary diversion was by ureterocutaneous diversion in 1 patient. A total of 3 patients underwent radical cystectomies for bladder cancer In 1 patient, simultaneous urethrectomy was done because of carcinoma in situ in the urethra. There were no operative mortalities. All patients are continent and without reflux to the upper urinary tract. The volume capacity of pouch is more than 400ml. The pouch is emptied by self-catheterization every 4 to 6 hours during the day and once at night. Postoperative follow-up presently is short and it is impossible to check late complications. Although preliminary, this clinical trial suggests that the quality of life for patients can be improved markedly by the modified Koch continent ileal reservoir.
Carcinoma in Situ
;
Colonic Pouches*
;
Cystectomy
;
Follow-Up Studies
;
Humans
;
Mortality
;
Nipples
;
Quality of Life
;
Urethra
;
Urinary Bladder Neoplasms
;
Urinary Diversion
;
Urinary Tract
8.A clinical analysis of tarsometatarsal joint injury.
Chil Soo KWON ; Han Suk KO ; Jong Kuk AHN ; Tae Hwan JEON
The Journal of the Korean Orthopaedic Association 1993;28(3):1182-1191
No abstract available.
Joints*
9.Characteristics of the Perception of the Somatic Symptoms and the Cognitive Emotion Regulation Strategies in Patients With Posttraumatic Stress Disorder
Joo-Han KWON ; Jong-Il PARK ; Jeong-Kyu SAKONG ; Jong-Chul YANG
Korean Journal of Psychosomatic Medicine 2021;29(2):102-110
Objectives:
:The purpose of this study is to investigate the characteristics of the perception of the somatic symptoms and the cognitive emotion regulation strategies in patients with posttraumatic stress disorder (PTSD).
Methods:
:A total of 48 patients meeting DSM-5 criteria for PTSD and 48 normal controls were recruited for participation in this study. We evaluated subjects using Clinician-Administered PTSD Scale (CAPS), Somato-Sensory Amplification Scale (SSAS), Hamilton Anxiety Scale (HAM-A) and Cognitive Emotion Regulation Questionnaire (CERQ). We analyzed data using an independent t-test and Pearson’s correlation analysis.
Results:
:In terms of SSAS, PTSD patients presented higher average SSAS scores than normal controls but the result is not statistically significant. In PTSD patients, the severity of PTSD is significantly correlated with CERQrumination and CERQ-catastrophizing. The SSAS scores of PTSD patients show the significant positive correla-tion with PTSD hyperarousal symptoms, CERQ-catastrophizing and CERQ-blaming others.
Conclusions
:These results reveal that patients with PTSD have maladaptive cognitive emotion regulation strategies such as rumination and catastrophizing. Somato-sensory amplification seems to be related with PTSD hyperarousal, CERQ-catastrophizing and CERQ-blaming others. Therefore, reducing somato-sensory amplifica-tion, rumination and catastrophizing can be helpful to reduce PTSD symptoms and somatic symptoms in PTSD patients.
10.In vitro stimulation of nih 3t3 fibroblast proliferation by interleukin-6 and tumor necrosis factor-alpha generated from peritoneal macrophages activated by silicone gel.
Paik Kwon LEE ; Ji Hoon CHUN ; Jong Won LEE ; Ki Taik HAN ; Sang Bae HAN ; Hwan Mook KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(5):719-730
Silicone gel breast implants may induce local(fibrous capsular contracture) or systemic(rheumatoid arthritis, systemic sclerosis, etc) complications. The exact mechanism of fibrous capsular contracture has not been fully understood. In the present study, we tried to find out the effect of silicone gel on the fibroblast proliferation which has been known as a major contributing factor in fibrous capsular contracture formation. In vitro, activated macrophages are known to secrete monokines which affect fibroblast proliferation and collagen synthesis. And tumour necrosis factor-alpha(TNF-alpha) and interleukin-6(IL-6), which were released by macrophages, were reported as potent stimulator of fibroblast proliferation. The goal of this study is to investigate the role of macrophages and tumour necrosis factor-alphaor interleukin-6 in the interaction of fibroblasts and silicone gel. We designed four groups, two experimental and two control, using Institute for Cancer Research(ICR) mouse peritioneal macrophage and silicone gel. For the preparation of the conditioned medium of macrophages, peritoneal macrophages were prepared and cultured for 24 hours on the silicone gel-coated and naked (not coated) surface [silicone gel-macrophage conditioned medium(SCM; experimental group) and normal polystyrene-macrophage conditioned medium(NCM; control group) respectively]. To correct the effect of 10% fetal bovine serum which was included in Rapid Prototyping and Manufacturing Institute (RPMI) 1640 medium and draw the effect only by macrophages, the RPMI 1640 medium with 10% fetal bovine serum was cultured by the same method on the silicone gel-coated and naked surface (silicone gel-macrophage free conditioned medium; SFM and normal polystyrene-macrophage free conditioned medium; NFM respectively). Each conditioned medium was added onto NIH 3T3 fibroblasts culture at a final 25% concentration of total culture medium and followed by the cultivation for 24 hours. For antibody neutralizing experiments, each conditioned medium was preincubated with polyclonal rabbit anti-mouse TNF-alpha antibody or polyclonal rat anti-mouse IL-6 antibody for 1 hour and then, conditioned medium with antibody was added to the culture medium of NIH 3T3 fibroblasts by the same method. After 24 hours cultivation, total number of viable fibroblast(cell growth), DNA synthesis and collagen synthesis of fibroblasts with each medium were measured by sulforhodamine B(SRB) assay, 3H-thymidine and 3H-proline incorporation respectively. The results were as follows: 1. In the experiment about the effect of the conditioned medium on the fibroblast activity, the experimental group(SCM), compared with the control group(NCM), showed a significant increase of the cell growth (p<0.01), a significant decrease of DNA synthesis(p<0.001), but no significant difference in the collagen synthesis. 2. In the experiment about the effect of polyclonal rabbit anti-mouse TNF-alpha antibody on the fibroblast activity, after the addition of antibody the experimental group, compared with the control group, showed a significant decrease of the cell growth(p<0.001), a significant increase of DNA synthesis(p<0.01), but no significant difference in the collagen syn thesis. 3. In the experiment about the effect of polyclonal rat anti-mouse IL-6 antibody on the fibroblast activity, after the addition of antibody the experimental group, compared with the control group, showed a significant decrease of the cell growth(p<0.001), a significant increase of DNA synthesis(p<0.0001), but no significant difference in the collagen synthesis. In conclusion, culture supernatants (conditioned medium) of peritoneal macrophages, activated by silicone gel, stimulate the NIH 3T3 fibroblast proliferation. TNF-alpha and IL-6, products of macrophage, are involved in the stimulation of NIH 3T3 fibroblast proliferation in an in vitro condition.
Animals
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Arthritis
;
Breast Implants
;
Collagen
;
Contracture
;
Culture Media, Conditioned
;
DNA
;
Fibroblasts*
;
Interleukin-6*
;
Macrophages
;
Macrophages, Peritoneal*
;
Mice
;
Monokines
;
Necrosis
;
Rats
;
Scleroderma, Systemic
;
Silicone Gels*
;
Tumor Necrosis Factor-alpha*