1.Epidermolysis Bullosa Acquisita: A Complete Remissions versus Patients with Long-term Persistent Activities.
Dong Kyu HWANG ; Chang Woo LEE
Korean Journal of Dermatology 1999;37(6):715-718
BACKGROUND: In epidermolysis bullosa acquisita, it has been recognized that there exists heterogeneity in the clinical and serologic/immunopathologic features. OBJECTIVE: We examined patients with epidermolysis bullosa acquisita to see if there were any associated clinical and serological features which may predict disease activity or prognosis in the disease. METHODS: Clinical and some serologic features were compared. between 2 groups of patients with epidermolysis bullosa acquisita; one with complete remission of the symptoms and signs of the disease for more than 2 years and the other group with persistent disease activities of longer than 5 years.
Epidermolysis Bullosa Acquisita*
;
Epidermolysis Bullosa*
;
Humans
;
Population Characteristics
;
Prognosis
3.The Morphometric Study on the Vermiform Appendix in Korean Adults.
Kyeong Han PARK ; Uhm Mee RYUNG ; Young Il HWANG ; Douk Ho HWANG ; Ka Young CHANG
Korean Journal of Physical Anthropology 1996;9(1):27-34
The anatomical structure of vermiform appendix was studied for 124 Korean adult cadavers and the articles were reviewed with special reference to its position and length. The results are as follows ; 1. On the frequency of positional types based on Wakeley (1933), postileal type was recorded most frequently (37.7%) and retrocecal type was found in 19.7% of cases, showing the difference from other ethnic groups whose most frequent position was retrocecal or pelvic type. 2. In the direction of appendix in relation to the clock, the direction between 1 and 3 o'clock was most frequently found. 3. Appendix of fixed form was found in 22.1% of cases, that of free form 77.9%. In free form, postileal type was found most frequently, but retrocecal type was met most frequently in fixed form. 4. The length of appendix was 5.95±1.64 cm (male ; 6.14±1.67 cm ; female 5.59±1.51 cm). Neither significant difference between sex nor positional type was noted. 5. Positions of appendix are seemed to be set up during fetal stage. The Ethnic variation in the positions of appendix is thought to be determined by inherited physical anthropological factor, not by postnatal one.
Adult*
;
Appendix*
;
Cadaver
;
Ethnic Groups
;
Female
;
Humans
4.The comparison of tocolytic effects between MgSO4 and ritodrine HCI in preterm labor.
Keun Young LEE ; Seung Yong LEE ; Sun Tae HWANG ; Chang Hwang HAN ; Seong Weon KANG
Korean Journal of Obstetrics and Gynecology 1993;36(12):3857-3864
No abstract available.
Female
;
Obstetric Labor, Premature*
;
Pregnancy
;
Ritodrine*
;
Tocolytic Agents*
5.Identification of a Novel Gene by EST Clustering and its Expression in Mouse Ovary and Testis.
Sang Joon HWANG ; Chang Eun PARK ; Kyu Chan HWANG ; Kyung Ah LEE
Korean Journal of Fertility and Sterility 2006;33(4):253-263
OBJECTIVE: Identification of the regulatory mechanism for arrest and initiation of primordial follicular growth is crucial for female fertility. Previously, we found 15 expressed sequence tags (ESTs) that were specifically abundant in the day-5-subtracted cDNA library and that the B357 clone was novel. The present study was conducted to obtain the whole sequence of the novel gene including B357 and to characterize its mRNA and protein expression in mouse ovary and testis. METHODS: The extended sequence of the 2,965-bp cDNA fragment for the clone B357 was named 5-day-ovary-specific gene-1 (5DOS1) and submitted to GenBank (accession number AY751521). Expression of 5DOS1 was characterized in both female and male gonads at various developmental stages by Northern blotting, real-time RT-PCR, in situ hybridization, Western blotting, and immunohistochemistry. RESULTS: The 5DOS1 transcript was highly expressed in the adult testis, brain, and muscle as compared to the other tissues. In the ovary, the 5DOS1 transcript was detected in all oocytes from primordial to antral follicles, and highly expressed at day 5 after birth and decreased thereafter. In contrast, expression of 5DOS1 showed a gradual increase during testicular development and its expression was limited to various stages of male germ cells except spermatogonia. CONCLUSIONS: This is the first report on the expression and characterization of the 5DOS1 gene in the mouse gonads. Further functional analysis of the 5DOS1 protein will be required to predict its role in gametogenesis.
Adult
;
Animals
;
Blotting, Northern
;
Blotting, Western
;
Brain
;
Clone Cells
;
Cluster Analysis*
;
Databases, Nucleic Acid
;
DNA, Complementary
;
Expressed Sequence Tags
;
Female
;
Fertility
;
Gametogenesis
;
Gene Library
;
Germ Cells
;
Gonads
;
Humans
;
Immunohistochemistry
;
In Situ Hybridization
;
Male
;
Mice*
;
Oocytes
;
Ovary*
;
Parturition
;
RNA, Messenger
;
Spermatogonia
;
Testis*
6.Pattern of Adenomas after Colorectal Cancer Surgery.
Shin HWANG ; Won Young HWANG ; Chang Sik YOO ; Hee Won CHUNG ; Jin Cheon KIM
Korean Journal of Gastrointestinal Endoscopy 1996;16(2):191-198
Postoperative colonoscopy is an effective tool for management of colonic adenomas. Authors analyzed the pattern of colonic adenomas detected during follow-up colonoscopy after colorectal cancer surgery and evaluated the characteristics of adenornas, risk groups, and effective fo1low-up schedule. Study group were 222 patients and colonoscopy was performed 389 times. Patterns of adenornas were analyzed by variables as age, sex, preoperative serum CEA level, location of primary colorectal cancer, Borrmann type, Duke's stage, histologic differentiation, DNA ploidy, recurrence and histology. Metachronous adenomas were detected in 79 patients(35.6%) and both metachronous and syachronous adenomas were observed in 29 cases(13.1%). High risk variables for adenomas were male, old age and presence of synchronous adenoma. There were 2 patients with maligant change of adenomas. Yearly follow-up by complete colonoscopy over 3 years or more is recommended and follow-up interval should be shortened in the high risk groups.
Adenoma*
;
Appointments and Schedules
;
Colon
;
Colonic Neoplasms
;
Colonoscopy
;
Colorectal Neoplasms*
;
DNA
;
Follow-Up Studies
;
Humans
;
Male
;
Ploidies
;
Recurrence
7.Referral Patterns and Needs for Specialist Care among Patient Referred from Health Center.
Tae Yoon HWANG ; Chang Yoon KIM ; Pock Soo KANG
Korean Journal of Preventive Medicine 1996;29(1):133-143
This study was conducted to assess the referral patterns to specialist from general practitioners in health center and perceived needs of referred patients for specialist care in health center. The study subjects were 249 patients who visited to health centers and were referred to other medical facilities. The data were obtained from questionnaire survey which was conducted in Kyongjuu-city Health center, Seongju-Gun Health center and Koryong-Gun Health center in Kyongsangbuk-Do, from June 10 to october 17, 1995. The total referral rate was 2.7%. The proportion of patients who wished to be referred to medical specialists was 85.9%, and the proportion of patients referred by general practitioners in health centers was 14.1%. Among the patients who wished to be referred to medical specialists, 45.9% visited directly to health centers, 34.6% visited health centers via local clinics and 19.5% visited health centers to get referral permission only. The reasons for getting referral permission in health centers were easy geographical accessibility(34.6 %), easy to get referral permission in health centers(27.l%), and very difficult to get referral permission in local clinics(l6.4%). Among the diseases of referred patients, diseases of the musculoskeletal system and connective tissue were most prevalent on a whole, but diseases of nervous system and sensory organs were comparatively high among the patients who wished to be referred to medical specialists and infectious and parasitic diseases were comparatively high among the patients referred by general practitioners in health centers. The most favorable medical facility was general hospital including university hospital in both groups of patients who wished to be referred to medical specialist and the patient referred by general practitioners in health centers. Regarding the needs for specialist care in health center, 75.2% patients who wished to be referred to medical specialists and 74.3% of patients referred by general practitioners in health center wanted the specialist care. The most frequently requested speciality is internal medicine(47.1%), and then orthopedics and general surgery. Based on above results, this study revealed that the majority of patients referred from health center wished to be referred to medical specialists at their own will, so, referral system at health center level should be changed. And if specialist care in health center be provided, the medical care by internist could be provided first, and then that of orthopedics and general surgery could be provided. These kinds of medical cares could be covered by local clinicians as a part-time job on a voluntary basis.
Connective Tissue
;
General Practitioners
;
Gyeongsangbuk-do
;
Hospitals, General
;
Humans
;
Musculoskeletal System
;
Nervous System
;
Orthopedics
;
Parasitic Diseases
;
Surveys and Questionnaires
;
Referral and Consultation*
;
Specialization*
8.Relationship of Body Fat Percent with Serum Lipid Level and Blood Pressure in Adults.
Seock Whan LEE ; Tae Yoon HWANG ; Chang Yoon KIM
Korean Journal of Preventive Medicine 1995;28(4):783-794
This study was conducted to clarify the relationship of body fat percent with serum lipid level and blood pressure in adults. The study subjects were 472 men and l89 women who visited Multiphasic Health screening center of Yeungnam university Hospital in Taegu from May 20 to September 30, 1994. The relationship of serum lipid and blood pressure with BMl, Katsura index, atherogenic index, which calculated from the health screening data and body fat percent measured by impedance fat meter(model SIF-819) were analyzed. Three groups were classified as Group I(men: body fat percent > or= 20, women: body fat percent > or= 25, Group II (men: 15 < or = body fat percent <20, women: 20 < or = body fat percent<25, Group III(men: body fat percent <15. women: body fat percent<20) In this study, Group I accounted for 3.2%in men, 3.7%in women. Weight was significantly different among three groups in both sexes(p<0.01) and height was not significantly different among three groups. In men, serum total cholesterol, triglyceride, high density lipoprotein, low density lipoprotein. atherogenic index were significantly different(p<0.01). In women, serum total cholesterol and low density lipoprotein were significantly different(p<0.05 but there was no differences in triglyceride and high density lipoprotein among three groups. BMl and Katsura index were significantly different among three groups in both sexes(p<0.01). In men, body fat percent was positively correlated with weight, BMl, Katsura index, total cholesterol, triglyceride, low density lipoprotein, atherogenic index and systolic and diastolic blood pressures, and negatively correlated with high density lipoprotein. In women, body fat percent was positively correlated with age, height, weight, BMl, Katsura index, total cholesterol, triglyceride, low density lipoprotein and atherogenic index, and negatively correlated with high density lipoprotein. But there was no significant correlation between body fat percent and blood pressure in women. In multiple regression analysis for total cholesterol, fat percent, age and BMl were significant independent variables in men(p<0.05, R2=0.1286), and body fat percent and age in women(p<0.05, R2=0.3399). In case of LDL/HDL ratio, only BMl was a significant independent variable in men(p<0.01, R2=0.0954), and body fat percent, age and BMl in women(p<0.05, R2=0.3164). In multiple regression analysis, age, low density lipoprotein and total cholesterol were significant independent variables on systolic blood pressure in men(p<0.05, R2=0.1297), age and total cholesterol in women(p<0.055, R2=0.1705). On diastolic blood pressure, only age was a significantly independent variable in men(p<0.01, R2=0.0972) and women(p<0.01, R2=0..1218). From the result of this study, it could concluded that body fat percent was significantly associated with other obesity indices and serum lipid, but had no significant association with blood pressure. To establish the relationship of body fat percent with blood pressure, further study which consider other variables that may have an effect on blood pressure should be performed.
Adipose Tissue*
;
Adult*
;
Blood Pressure*
;
Cholesterol
;
Daegu
;
Electric Impedance
;
Female
;
Humans
;
Lipoproteins
;
Male
;
Mass Screening
;
Obesity
;
Triglycerides
9.Cerebral Oxygen Saturation Monitoring during Aortic Dissection Surgery: A case report.
Chang Gi KIM ; Jung Won HWANG ; Byung Moon HAM
Korean Journal of Anesthesiology 1997;33(5):962-966
Transcranial cerebral oximetry has been successfully used in a variety of neurosurgical conditions, primarily those associated with disturbed cerebral circulation. It has been also used in intraoperative monitoring of aortic dissection and surgical procedures performed under deep hypothermia and circulatory arrest. During disending aortic arch exposure, sudden cerebral oxygen saturation change from 63% to 48% was detected. After therapeutic bypass, cerebral oxygen saturation was increased to 65%. During aortic arch repair, deep hypothermic circulatory arrest with retrograde cerebral perfusion was applied for 130 min and cerebral oxygen saturation slowly decreased from 65% to 52%. Patient was discharged from hospital without neurologic complication and cognitive funtion disturbance.
Aorta, Thoracic
;
Circulatory Arrest, Deep Hypothermia Induced
;
Humans
;
Hypothermia
;
Monitoring, Intraoperative
;
Oximetry
;
Oxygen*
;
Perfusion
10.Characteristics of Magnetic Resonance(M.R.) and Comprehension of its Imaging Mechanism.
Jae Chun CHANG ; Mi Soo HWANG ; Son Yong KIM
Yeungnam University Journal of Medicine 1987;4(1):1-15
Magnetic resonance (MR) is rapidly emerging technique that provides high quality images and potentially provides much more diagnostic information than do conventional imaging modalities. MRI is conceptually quite different from currently used imaging methods. The complex nature of MRI allows a great deal of flexibility in image production and available information, and key points are as follows. 1. MR offers a non-invasive technique with which to generate in vivo human images without ionizing radiation and with no known adverse biological effects. 2. Imaging mechanism of MRI is quite different from conventional imaging modality and for more accurate diagnostic application, It is necessary for physician to understand imaging mechanism of MRI 3. M.R. makes available basic chemical parameters that may provide to be useful for diagnostic medical imaging and more specific pathophysiologic information which are not available by alternate techniques. 4. M.R. can be produced by number of different methods. This flexibility allows the imaging technique to be applicated for particular clinical purpose. Multiplanar and three dimensional imaging may extend the imaging process beyond the single section available with current CT. 5. Future directions include efforts to; a. Further development of hard ware b. More fastening scan time c. Respiratory and cardiac gated imaging d. Imaging of additional nuclei except hydrogen. e. Further development of contrast media f. MR in vivo spectroscopy g. Real time MR imaging
Comprehension*
;
Contrast Media
;
Diagnostic Imaging
;
Humans
;
Hydrogen
;
Magnetic Resonance Imaging
;
Pliability
;
Radiation, Ionizing
;
Spectrum Analysis