1.Elevation of alul-induced frequencies of chromosomal aberrations and sister chromatid exchanges in CHO cells substituted with 5-bromodeoxyuridine by ammonium sulfate.
In Jang CHOI ; Ihn Hwan LEE ; Sung Ik CHANG
Korean Journal of Anatomy 1991;24(1):61-69
No abstract available.
Ammonium Compounds*
;
Ammonium Sulfate*
;
Animals
;
Bromodeoxyuridine*
;
CHO Cells*
;
Chromosome Aberrations*
;
Cricetinae
;
Humans
;
Siblings*
;
Sister Chromatid Exchange*
2.Comparison of NM23-H1/NDP Kinase and CD44v Expression in Human Skin Cancer : An Immunohistochemical Study.
In Hwan LEE ; Gyu Suk LEE ; Sung Ik JANG
Korean Journal of Anatomy 1997;30(5):475-482
Two isotypes of nm23 gene have been reported as multifunctional genes as well as CD44 gene. In tumor, both of genes, one isotype of human nm23, nm23-H1 and splice variants of surface glycoprotein CD44[CD44 v8-10], are correlated with tumor growth and metatastic potential[Keim et al., 1992 ; Dall et al., 1995]. However, the correlation of expression between these genes in tumor was not reported. In this immunohistochemical study on skin cancers, basal cell carcinoma, squamous cell carcinoma, and malignant melanoma, we intended to clarify the differences of expression on the basis of origins of skin tumors, basal cell, prickle cell, melanin producing cell, and compare the alterations of expressions between two genes in each tumor, respectively. The conclusion of this comparison is that relative parallel alteration in expressions between nm23-H1/NDP kinase and CD44 v8-10 was observed in basal cell carcinoma and malignant melanoma with inverse relation in differentiation. In squamous carcinoma, the expressions of two genes were much associated with differentiation. On the periphery of tumor, very low level of nm23-H1 protein and high level of CD44 v8-10 protein were detected.
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Humans*
;
Melanins
;
Melanoma
;
Membrane Glycoproteins
;
Phosphotransferases*
;
Skin Neoplasms*
;
Skin*
3.Tic Severities, Plasma Homovanillic Acid and 5-hydroxyindoleacetic Acid Levels according to the Presence of Comorbidities in Patients with Chronic Tic Disorders.
Ki Hwan YOOK ; Sung Kil MIN ; Soon A JANG
Journal of Korean Neuropsychiatric Association 2001;40(1):87-97
OBJECTIVES: Contemporary empirical studies have suggested high rates of comorbid attention-deficit hyperactivity disorder(ADHD) or obsessive compulsive disorder(OCD) in children with tic disorders. Not infrequently, ADHD or OCD is as source of greater impairment than are the tic symptoms. The studies in the pathophysiology of tic disorder have implicated abnormalities of dopamine, serotonin and norepinephrine. The studies in pathophysiology of ADHD or OCD also have implicated abnormalities of dopamine, serotonin and norepinephrine. This study was purposed to examine the differences in tic severities and in the levels of plasma homovanillic acid(HVA) and 5-hydroxyin-doleacetic acid(5-HIAA) according to the presence of comorbid ADHD or OCD in patients with chronic tic disorders. METHODS: In fifty chronic tic patients, OCD or ADHD was also diagnosed. And then tic symptoms, obsessive-compulsive symptoms, and attention-deficit hyperactive symptoms were assessed using Yale global tic severity scale(YGTSS), Leyton obsessional inventory-child version(LOI-CV), and Conners parent rating scale. The plasma HVA and 5-HIAA levels were measured using high performance liquid chromatography with electrochemical detection method. RESULTS: Fifty-eight percent of the patients with chronic tic disorders had comorbid ADHD or OCD. But severities of tic did not differ regardless of the presence of comorbid ADHD or OCD. There was a significant positive correlation between tic severities and plasma HVA levels but none between tic severities and plasma 5-HIAA levels. There was a significant inverse correlation between resistance and interference scores and plasma 5-HIAA levels. Plasma HVA levels showed significant positive correlations with plasma 5-HIAA levels. CONCLUSION: These results showed that tic severities didn't vary according to the presence of comorbidities, and that tic severities were correlated with plasma HVA levels, not with plasma 5-HIAA levels. These results suggested that the pathophysiology of chronic tic disorder was strongly correlated with abnormalities of dopaminergic system.
Child
;
Chromatography, Liquid
;
Comorbidity*
;
Dopamine
;
Homovanillic Acid*
;
Humans
;
Hydroxyindoleacetic Acid
;
Norepinephrine
;
Obsessive Behavior
;
Obsessive-Compulsive Disorder
;
Parents
;
Plasma*
;
Serotonin
;
Tic Disorders*
;
Tics*
4.A study on the Status of Air and Water Pollutants Emission from Industries in Korea .
Chul Hwan CHA ; Chang Supp JANG ; Hyung Won KIM ; Young Ja SUNG
Korean Journal of Preventive Medicine 1973;6(1):27-41
In order to provide some basic data for the control of air water pollution in Korea, the suthors have estimated the amount of air and water pollutant emitted from industries which are employed over 20 employes. This study have done from July 1, 1972 to the end March 1973. The results are as follows: 1. Total number of establishments tith over 20 employees is 5,197 in Korea and the largest gorup establishments was the manufacturing of texttiles with 1,363 establishments(26.2%). 2. By order of number of employees it was observed that there 2,800 industries with 20-59(53.9%) employees, 1,101 with 50-99(21.2%), 571 with 100-199(11.0%), 501 with 200-499(9.6%) and 225with over 500(4.3%) respectively. 3. By order of regional distribution, it was observed that there were 2,257 industries in Seoul (43.3%) and 736 industries in Pusan(14.2%). 4. Industrial coal consumption was 596,154 M/T in 1972, but it'11 be 315,000 M/T in 1980, Fuel consumption was 4,972,000 K1 in 1972, and estimated volume will be 19,3700,000 K1 in 1980. 5. Ttotal amounts of air polutants emitted from industris by fuel combustion were sulfur oxides 79,459 tons, carbon monoxide 33,908 tons, particulate 31,304 tons and hydrocarbon 30,280 tons in 1972 but in 1990 there will be sulfur oxides 1,010,474 tons, nitrogen oxides 204,575 tons, carbon monoxide 68,014 tons, particulate 64,820 tons and hydrocarbon 67,622 tons, respectively. 6. Annual emitted air pollutants through the working processes were sulfur oxides 91,250 tons and nitrogen oxides 32,485 tons in 1972, but sulfur oxieds 118,625 tons and nitrogen oxides 42,555 tons will be present in 1980, respectively. 7. Annual emitted air pollutants by national unit area amounted to 0.77 tons/km2/year in 1965 and 14.7 ton/km2/year in 1980. 8. Total industrial wastes from all industries in Korea were estimated at 810,360 tons/day in 1972; manufacturing of chemicals and plastic products showed the highest amount of wastes at 470,000 tons/day. 9. The amounts of water pollutants due to industrial wastes were the .B.O.D., 471.5 tons/day,suspended solid 331.5 tons/day, CN, 2.3 tons/day, and Cr. 3. 4 tons/day in 1972, but it might be evident of a B.O.D of 3.388 tons/day, suspended solid 2,544 tons/day, CN 20.1 tons/day, and 26.5 tons/day in 1990. 10. Total population equivalent of B.O.D. was 943,000 in 1972, and the estimated value in 1990 will be6, 780, 000.
Air Pollutants
;
Carbon Monoxide
;
Coal
;
Industrial Waste
;
Korea*
;
Nitrogen Oxides
;
Plastics
;
Seoul
;
Sulfur
;
Sulfur Oxides
;
Water Pollutants*
;
Water Pollution
5.A Case of Primary Cutaneous Mucinous Adenocarcinoma.
Jang Hyun SHIN ; Hwan Tae SUNG ; Seung Yong JUNG ; Eil Soo LEE
Korean Journal of Dermatology 1999;37(4):523-527
We report a case of primary cutaneous mucinous adenocarcinotna in a 64-year-old female. The tumor was about 2cm in size, forminga round dome-shaped alopecic scalp mass which had gradually increased in size over about 5 years, Histalogic examination revealed that the tumor was divided into numerous compartments by strands of fibrous tissue. In each compartment, abundant amounts of pale-staining mucin surrounded nests or cords of moderately anaplastic epithelial cells. We couldn't find any evidence of internal neoplasms as a source of metastasis. We resected the tumor with approximately a 1 cm margin and then performed a split thickness skin graft.
Adenocarcinoma, Mucinous*
;
Betazole
;
Epithelial Cells
;
Female
;
Humans
;
Middle Aged
;
Mucins*
;
Neoplasm Metastasis
;
Scalp
;
Skin
;
Transplants
6.Correlation between Magnetic Resonance Image Signal Changes and Electromyographic Findings after Sciatic Nerve Transection in the Rat.
Joo Hwan LEE ; Jang Chul LEE ; Dong Won KIM ; Ki Young PARK ; Sung Moon LEE
Journal of Korean Neurosurgical Society 2000;29(1):101-107
No abstract available.
Animals
;
Rats*
;
Sciatic Nerve*
7.Focal Nodular Hyperplasia with Aberrant Lymphatics: A Case Report.
Kyu Yun JANG ; Woo Sung MOON ; Baik Hwan CHO ; Dae Ghon KIM
The Korean Journal of Hepatology 1998;4(3):278-282
No abstract available.
Focal Nodular Hyperplasia*
8.Mosaic-trisomy 22 with Inv(22)(p12-q13)..
In Jang CHOI ; Ihn Hwan LEE ; Bok Hyun KO ; Sung Ik CHANG
Korean Journal of Physical Anthropology 1991;4(2):145-149
No abstract available.
9.A case of Psoriasis with Generalized Pustules Treated with Tetracycline.
Dae Sung LEE ; Mi Sook JANG ; Yung Hwan KIM ; Won HOUH
Korean Journal of Dermatology 1987;25(4):511-514
Four clinical patterns of generalized pustular phase were apparent and have been named the Zumbusch, annular, localized and exanthematic types. Other reported 10 types of pustular psoriasis including the poriasis with generalized pustules. We report a case of psoriasis with generalized pustules in a 18-year-old women, who has numerous scattered pustules with mild fever and leukocytosis. She was treated sucessfully with tetracycline 2.0 gm a day for 4 wks.
Adolescent
;
Female
;
Fever
;
Humans
;
Leukocytosis
;
Psoriasis*
;
Tetracycline*
10.Advanced techniques of southern blot hybridization.
In Jang CHOI ; Yong Wook JUNG ; Dae Kwang KIM ; Sung Ik CHANG ; Ihn Hwan LEE
Korean Journal of Anatomy 1991;24(2):219-225
No abstract available.
Blotting, Southern*