1.Effect of electric shock stress or psychological conflict stress on the proliferation and interleukin-2 productio of rat splenic lymphocyte.
Sang Jin HAN ; Byung Hwan YANG ; Jung Mogg KIM
Journal of Korean Neuropsychiatric Association 1992;31(2):208-220
No abstract available.
Animals
;
Interleukin-2*
;
Lymphocytes*
;
Rats*
;
Shock*
2.Clinical results of surgical treatment for recurrent and habitual patellar dislocation.
Jin Hwan AHN ; Sang Gweon LEE ; Hyun Soo HAN
The Journal of the Korean Orthopaedic Association 1993;28(1):385-391
No abstract available.
Patellar Dislocation*
3.A study on the radiation effect on microvasculature of N-methyl-N-Nitrosourea-induced mammary carcinoma in rats
Sang Hoon BAE ; Kyoung Hwan KOH ; Chung Kie IM ; Sung Hwan HA ; Man Chung HAN
Journal of the Korean Radiological Society 1985;21(3):357-367
Mammary carcinoma was induced in rats by itravenous injection of N-methy-N-Nitrosourea. Microangiography was perfromed to evaluate the microvascular alterations in mammary carcinoma after irradiation. The tumors were givena single dose of 1.400 rads using Co-60 telethrapy unit with field size of 4 x 4 cm at 40 cm SSD. The dose ratewas 147.5 rads per minute. Microangiography was performed prior to irradiation and at one, two, and four weeksfollowing irradiation. The results are as follows: 1. Before irradiation, mammary carcinoma in rats tended to formlobules and the basic vasculature consisted of peripheral vascular pattern with central penetrating vessels. Theperipheral vascular pattern was always richer than that of the center. Irregular and tortuous vessles stretchedfrom the periphery into the center of lobule. 2. One week following irradiation, an increase in the number ofsmaller, tortuous vessels and decreased intervasular distance were obseved in the central portion of each lobule.This finding seems to be due to an improved filling of some previously existing but unfilled vessels. This maylead to improved metabolic changes and reoxygenation. 3. Later's changes of microvasculature after irradiation aretortuosity, irregularity, narrowing, abrupt tapering, fragmentation, and extravasation. These findings progressedafter a lapse of time. 4. The results can be considered as the microangiographic demonstration of the fact that reoxygenation after irradiation is mainly due to dilatation of the collapsed tumor vessels.
Animals
;
Dilatation
;
Microvessels
;
Radiation Effects
;
Rats
;
Silver Sulfadiazine
4.Detection of canine distemper virus (CDV) through one step RT-PCR combined with nested PCR.
Yong Hwan KIM ; Kyu Woan CHO ; Hwa Young YOUN ; Han Sang YOO ; Hong Ryul HAN
Journal of Veterinary Science 2001;2(1):59-63
A one step reverse transcription PCR (RT-PCR) combined nested PCR was set up to increase efficiency in the diagnosis of canine distemper virus (CDV) infection after developement of nested PCR. Two PCR primer sets were designed based on the sequence of nucleocapsid gene of CDV Onderstepoort strain. One-step RT-PCR with the outer primer pair was revealed to detect 10(2) PFU/ml. The sensitivity was increased hundredfold using the one-step RT-PCR combined with the nested PCR. Specificity of the PCR was also confirmed using other related canine virus and peripheral blood mononuclear cells (PBMC) and body secretes of healthy dogs. Of the 51 blood samples from dogs clinically suspected of CD, 45 samples were revealed as positive by one-step RT-PCR combined with nested PCR. However, only 15 samples were identified as positive with a single one step RT-PCR. Therefore approximately 60% increase in the efficiency of the diagnosis was observed by the combined method. These results suggested that one step RT-PCR combined with nested PCR could be a sensitive, specific, and practical method for diagnosis of CDV infection.
Animals
;
Distemper Virus, Canine/genetics/*isolation & purification
;
Dogs
;
Polymerase Chain Reaction/*methods/*veterinary
;
RNA, Viral/genetics/isolation & purification
;
Reverse Transcriptase Polymerase Chain Reaction
;
Vaccines, Attenuated
;
Viral Vaccines
5.Acute Ulcerative Contact Dermatitis from Ready Mixed Conerete.
Korean Journal of Occupational and Environmental Medicine 1995;7(1):191-194
The case was described of a 43 year old male who developed burns of the both shins as a result of handling wet cement. After wet cement was spilled into the rubber boots he was wearing, he experienced painful erythema of both lower legs. Several weeks later, medical examination revealed dirty and granulated ulceration of the both shins. The largest ulcer, about 18 by 10 centimeters, was located on the anterior aspect of left lower leg. We coneluded that this skin problem resulted from the ertreme alkalinity of calcium hydroxide in wet cement, combined with the effects of pressure and occlusion against the skin.
Adult
;
Burns
;
Calcium Hydroxide
;
Dermatitis, Contact*
;
Erythema
;
Humans
;
Leg
;
Male
;
Rubber
;
Skin
;
Ulcer*
6.Anthelmintic effects of single doses of fenbendazole and oxantel-pyrantel pamoate to the intestinal nematodes.
Han Jong RIM ; Joon Sang LEE ; Kyung Hwan JOO ; Yung Shik KIM
The Korean Journal of Parasitology 1981;19(2):95-100
The present study was undertaken to evaluate the anthelmintic effects of fenbendazole against intestinal nematode; Ascaris lumbricoides, hookworm and Trichuris trichiura, and to compare the efficacy in fenbendazole, oxantel-pyrantel pamoate and placebo by means of double blind method. Out of 114 subjects harbouring Ascaris lumbricoides, hookworm and Trichuris trichiura, 36 cases were treated with single dose of fenbendazole, 38 cases with oxantel-pyrantel pamoate, and the remaining 40 cases had received the placebo. The results were as follows: In the group treated with fenbendazole (30-50 mg/kg), the cure rates were 83.9 percent in 31 subjects with Ascaris lumbricoides and 83.3 percent in 18 subjects with hookworm, and only 28.6 percent in 28 subjects with T. trichiura respectively. In the group treated with a single dose of oxantel-pyrantel pamoate (10 mg/mg), the cure rates were 96.7 percent in 30 subjects with A. lumbricoides, 95.2 percent in 21 subjects with hookworm, and 54.6 percent in 33 subjects with T. trichiura. Egg reduction rate was 85.7 percent in T. trichiura cases. On the other hand, the egg negative conversion rates in placebo group were 9.7, 8.3 and 33.3 percent in Ascaris, Trichuris and hookworm infections respectively. The above results showed that fenbendazole was highly effective against Ascaris and hookworm. However, incomparisom with oxantel-pyrantel pamoate, fenbendazole was less effective in regards of A. lumbricoides, hookworm and T. trichiura infections.
parasitology-helminth-nematoda
;
chemotherapy
;
Ascaris lumbricoides
;
hookworm
;
Trichuris trichiura
;
fenbendazole
;
oxantel-pyrantel pamoate
7.A Case of Rickettsia Typhi.
Deuk Hwan JUN ; Sang Joo HAN ; Bae Young KIM ; Won Il PARK ; Kyung Ja LEE
Journal of the Korean Pediatric Society 1989;32(12):1736-1739
No abstract available.
Rickettsia typhi*
;
Rickettsia*
8.Choroidal Metastasis of Adenocarcinoma of the Lung: A case report.
Seong Hwan PARK ; Ju Han LEE ; Jeong Seok MOON ; Jong Sang CHOI
Korean Journal of Pathology 1999;33(6):471-473
Choroidal metastatic carcinoma is very rare. We recently experienced a case of lung adenocarcinoma which presented to the clinic with ocular symptoms. This 57-year-old Korean male patient visited the department of ophthalmology due to decreased visual acuity and pain of the left eye. On MRI scan, a nodule was attached to the retina of the left eyeball. On simple chest radiograph, a large amount of pleural effusion was noted in the left pleural cavity. Emergency enucleation of the left eyeball was done with an impression of malignant melanoma causing an intractable ocular pain. Grossly, the lesion in the eyeball was rising from the choroid. On histologic examination, tumor cells formed many irregular, small gland-like structures. The tumor cells showed alcian blue-positive mucin in the cytoplasm and glandular lumens and were positive for CEA. Chest CT scan was performed postoperatively and showed a huge mass in the left lower lobe and multiple nodular opacities in both lung fields. Bronchoscopic biopsy revealed moderately differentiated adenocarcinoma similar to that of the eyeball.
Adenocarcinoma*
;
Biopsy
;
Choroid*
;
Cytoplasm
;
Emergencies
;
Humans
;
Lung Neoplasms
;
Lung*
;
Magnetic Resonance Imaging
;
Male
;
Melanoma
;
Middle Aged
;
Mucins
;
Neoplasm Metastasis*
;
Ophthalmology
;
Pleural Cavity
;
Pleural Effusion
;
Radiography, Thoracic
;
Retina
;
Tomography, X-Ray Computed
;
Visual Acuity
9.Partial Unconstitutional Clauses in the Korean Public Sanitation Administration Law.
Ji Hwan HWANG ; Seung Kyung HANN ; Sang Han WANG
Korean Journal of Dermatology 2009;47(3):245-250
In 2007, the Public Sanitation Administration Law in Korea was partially amended to subdivide cosmetology into general and skin cosmetology. Thus starting from 2008, a skin cosmetology qualification requirement license was newly created in Korea. Instead of improving the health standards concerning public health, the amendments have exaggerated the monopolistic right of trade of the Korean Central Esthetician's Association with the assistance of the Division of Sanitary Policy in the Korean Ministry for Health. In addition, the amended ordinances stipulate that cosmetologists can analyze skin conditions, hence allowing medical diagnostic procedures by non-medical personnel which has serious health problems causing serious conflict with Korean Medical Law. Legislation precedents from around the world demonstrate that medical supervision by physicians is absolutely necessary with fastidious requisitions in order to safeguard public health. However, in Korea there is a subversive attempt by some esthetician groups to limit the employment of estheticians by medical institutions in order to safeguard their private privileges. The newly amended Public Sanitation Administration Law should be revised in order to preserve the fundamental rights of the people, to enhance public health, and to uphold the well being of the people instead of catering to special interest groups.
Employment
;
Human Rights
;
Jurisprudence
;
Korea
;
Licensure
;
Organization and Administration
;
Public Health
;
Public Opinion
;
Sanitation
;
Skin
10.Molecular Analysis of Oculocutaneous Albinism Patients in Korea.
Ji Hwan HWANG ; Sang Woong YOUN ; Jong Seong AHN ; Kyu Han KIM ; Kyoung Chan PARK
Annals of Dermatology 1997;9(3):182-187
BACKGROUND: Oculocutaneous albinism (OCA) is a genetic disorder of the melanin pigment system in which melanin synthesis is reduced or absent in the skin, hair, and eyes. OCA is classified into two major types, and tyrosinase-related OCA can be produced by mutations of the structural gene for tyrosinase enzyme (TYR gene). OBJECTIVE: The purpose of this study was to analyze the segregation of mutant alleles of the TYR gene in tyrosinase-negative and tyrosinase-positive Korean OCA patients and families. METHODS: We amplified exon I, II, and III of the TYR gene of Korean OCA patients and their families by polymerase chain reactions (PCR), and analyzed the mutations by restriction fragment length polymorphism (RFLP) analysis in exon I and single-strand conformation polymorphism (SSCP) analyses in exon II and exon III. RESULTS: Two tyrosinase-negative cases showed mutations in exon I. Four tyrosinase-nega-tive cases and one tyrosinase-positive case showed mutations in exon II, and one tyrosinase-neg- ative case showed mutations in exon III. In summary, we found three kinds of mutation in four tyrosinase-negative OCA patients and one tyrsinase-positive OCA patient. CONCLUSIONS: RFLP and SSCP analysis can provide a basis for a rapid and sensitive screening system to detect TYR gene mutations of Korean OCA patients and their families.
Albinism, Oculocutaneous*
;
Alleles
;
Exons
;
Hair
;
Humans
;
Korea*
;
Mass Screening
;
Melanins
;
Monophenol Monooxygenase
;
Polymerase Chain Reaction
;
Polymorphism, Restriction Fragment Length
;
Polymorphism, Single-Stranded Conformational
;
Skin