1.Expression of CD44 in Epithelial Ovarian Tumors.
Kye Weon KWON ; Hee Jeong AHN ; Yoon Jeong CHOI ; Hee Jae JOO ; Nam Hoon CHO
Korean Journal of Pathology 1998;32(8):596-602
CD44 is a hyaluronic acid receptor that exists as a standard 90-kd form (CD44H) as well as several CD44 variants isoforms are produced through alternative splicing. Alternatively spliced variants of the CD44 molecule have been found to be associated with invasive and metastatic potential of cancer cells and poor prognosis in several types of carcinoma. The purpose of the present study is to define the expression of CD44H and CD44v6 in ovarian tumors and to investigate whether the expression of these molecules is associated with adverse prognosis. We evaluated the expression of CD44 isoforms in 58 ovarian tumors by means of immunohistochemistry, and correlated between CD44 expression and the histologic types, tumor grade, peritoneal implants, pseudomyxoma peritonei and FIGO stage. While the CD44H was commonly expressed in ovarian tumors, the CD44v6 was expressed in a minor proportion of serous tumors in comparison with frequent expression of v6 isoform in mucinous tumors. The CD44H expression was significantly higher in stage I/II than in stage III. However, there was no correlation between the expression of CD44 and the presence of peritoneal implants or pseudomyxoma peritonei. These results suggest that CD44H could play an important role in the adhesive function in the lower stage of the ovarian tumor and reduced expression in the higher stage might be related to the metastasis and widespread invasion of ovarian carcinoma cells.
Adhesives
;
Alternative Splicing
;
Female
;
Hyaluronic Acid
;
Immunohistochemistry
;
Mucins
;
Neoplasm Metastasis
;
Ovary
;
Prognosis
;
Protein Isoforms
;
Pseudomyxoma Peritonei
2.Study on Child Mortality among Korean Children.
Beom Soo PARK ; Moo Song LEE ; Seung Pil JEONG ; Yoon Ok AHN
Journal of the Korean Pediatric Society 1994;37(9):1264-1272
To estimate the child and infant mortality rates among Korean children, a mortality survey was carried out in the province of Kyongsangnam,buk-do. The study population are the beneficiaries of Korea Medical Insurance Coorporation (KMIC), Kyongsangnam,buk-do area, among which the 3,867 and 1767 deaths occurred from January, 1989 to December, 1990 in Kyongsangnam-do area and from January, 1991 to December, 1991 in Kyongsangbuk-do area respectively. We reviewed the data to confirm the causes of death. These were based on the death certificates and medical utilization records before dying which were available through the computerized databases on medical care utility of KMIC. The survey conducted along three steps. At first, the death certificates were examined, as a second step, medical utilization records were reviewed, and finally direct contacts to the family members of the deceased were done. As a result, 115 deaths were found under 20 years of age. Using them, age specific mortalities and causes of death were estimated. Mortality rate in this area was estimated 129 per 100,000 person-years during 1 month to 11 months of age, 67 during 1 year to 4 years of age, 23 during 5 years to 9 years of age, 10 during 10 years to 14 years of age, and 29 during 15 years to 19 years of age, respectively. And the frequent causes of death were congenital anomalies, central nervous system (CNS) diseases, certain condition originating from perinatal period during 1 months of age; accidents, congenital anomalies, malignancies, CNS diseases, and pneumonia or bronchiolitis during 1 to 4 years of age; accidents, malignancies, CNS diseases, and congenital anomalies during 5 to 14 years of age; and accidents, suicide, malignancies, and CNS diseases during 15 to 19 years of age.
Bronchiolitis
;
Cause of Death
;
Central Nervous System
;
Central Nervous System Diseases
;
Child
;
Child Mortality*
;
Child*
;
Death Certificates
;
Gyeongsangbuk-do
;
Gyeongsangnam-do
;
Humans
;
Infant
;
Infant Mortality
;
Insurance
;
Korea
;
Mortality
;
Pneumonia
;
Suicide
3.Analysis of Histological Findings and Estrogen and Progesterone Receptor Status in Luteal Phase Defect Caused by Delayed Ovulation and Clomiphen Treatment.
Kyu Rae KIM ; Hee Jeong AHN ; Jai Hyang GO ; Dong Hee CHOI ; Byoung Goo YOON
Korean Journal of Pathology 1996;30(12):1106-1115
Luteal phase defect (LPD) is an ovulatory disorder of considerable clinical importance that leads to delayed endometrial maturation and inadequate endometrium for blastocyst implantation. This disorder is implicated in infertility and recurrent spontaneous abortion. We analyzed the endometrial histological maturation, and the estrogen receptor(ER) and progesterone receptor(PR) status in patients with unexplained delayed ovulation, and in patients with ovulation induction by clomiphen citrate. The purpose of this study was to determine whether the length of the follicular phase influences the endometrial histological maturation and the hormonal receptor status, and to know the effect of clomiphen citrate on the endometrium. In the delayed ovulation group, the endometrium was characterized by an irregular outpouching and dilated lumina of the glands, a decreased secretory activity and predecidualization, and a decreased number of granulocytes in the stroma. In the clomiphen citrate-ovulation induction group, glandular proliferation was markedly diminished with poorly convoluted and narrow glands, secretory activity was decreased, stroma was undecidualized, and there was an absence of granulocytes. ER expression was increased in the glandular epithelium in the delayed ovulation group, and both ER and PR expressions were markedly decreased in the glandular epithelium and stromal cells in the ovulation induction group. Endometrial maturation and differentiation may be diminished by increased estrogenic and relatively deficient progesterone effects in patients with delayed ovulation. The hormonal receptor status might also be influenced by hormonal changes. Clomiphen citrate successfully induced ovulation in patients with delayed ovulation, however, endometrial proliferation and maturation were markedly suppressed. This might be related to the lower pregnancy rate and higher abortion rate in patients with clomiphen citrate induced ovulation.
Pregnancy
;
Female
;
Humans
4.Ecological Studies of Maternal-Infant Nutrition and Feeding in Urban Low Income Areas: III. Infant's Nutrient Intakes and Growth pattern.
Korean Journal of Community Nutrition 1998;3(2):174-189
The purpose of this study was to evaluate the nutritional status and growth of Korean infants, who were atending peripheral community clinics in low income areas, by anthropometric measurements and estimating dietary intakes. Dietary intakes and growth were compared among different feeding patterns of 143 infants until age 9 months. The overall mean nutrient intakes of infants in this study were below the recommended allowances except the calcium intake from significant difference in each groups; however, calcium, zinc and iron intake of the formula fed infant(FF) was higher than the breast fed infant(BF) or the mixed fed infant(MF). Form ages 4-6 months, the nutrient intakes were shown to be higher in groups that were given supplementary foods than groups that were not. From ages 7-9 months, all nutrient intakes were higher in or the formula and supplementary foods fed(ESF) infants than in the breast and supplementary food(BSF) or the formula and supplementary food(FSF) groups, All subjets in this study showed a large Z-score. The growth of infants up to 6 months of age showed no significant difference in the feeding pattern, however, after 7 months of age the BSF group had significantly lower weight than the FSF or the ESF groups, There were significant positive relationships between infants weight gain at age 7-9 months from birth and the current protein or zinc intakes. As a result the average status of nutrient intakes of infants in this area was loser than the RDA, however, the growth pattern was fairly good. Although the breast milk is beneficial for infants, mothers should be educated for the importance of supplemental food and its practice to support good nutrition.
Breast
;
Calcium
;
Feeding Behavior
;
Humans
;
Infant
;
Iron
;
Milk, Human
;
Mothers
;
Nutritional Status
;
Parturition
;
Weight Gain
;
Zinc
5.Atypical Polypoid Adenomyomas of the Endometrium: 2 case reports.
Hee Jeong AHN ; Kyu Rae KIM ; Yoon Jung CHOI ; Bok Soo KIM
Korean Journal of Pathology 1996;30(11):1034-1039
Atypical polypoid adenomyoma(APA) is a rare benign polypoid tumor arising in the uterine endometrium which was first designated by Mazur in 1981. Microscopic examination reveals architecturally and cytologically atypical endometrial glands separated by intersecting fascicles of smooth muscle cells. The tumor can be misdiagnosed as endometrial adenocarcinoma with myometrial invasion, especially on microscopic examination of a curettage specimen. However a granulation tissue-like stromal response is absent and the smooth muscle in APA is more cellular than that of normal myometrium. We are reporting 2 cases of APA of the uterine endometrium which are 1.5 cm and 1.7 cm in size, respectively, in a 30 and a 22 year-old women. This is the first report in Korean literature using the immunohistochemical staining for smooth muscle actin and desmin.
Female
;
Humans
;
Adenocarcinoma
6.The Effect of Corticosteroid Therpy in the Very Premature Infant.
Hye Jeong KIM ; Mi Ja PARK ; Jae Yoon KIM ; Young JIn HONG ; Don Hee AHN
Journal of the Korean Society of Neonatology 1997;4(2):178-186
PURPOSE: Our purpose was to deterrnine the efficacy of maternal corticosteroid therapy on the morbidity of premature infants between 26 and 31 weeks' gestation. METHOD: A total of 62 premature infants between 26 and 31 weeks gestation admitted to pediatric department of National Medical Center from Nov, 1990 to June 1996 were analyzed to evaluate the efficacy of prenatal corticosteroid therapy on the morbidity such as hyaline membrane disease, intreventricular hernorrhage, necrotizing enterocolitis, sepsis, neonatal death, days on ventilation and hospital days. RESULT: Among 62 women who delivered premature infants between 26 and 31 weeks, 22 received betamethasone before delivery and 40 did not. 1) The rate of hyaline membrane disease was less in the betamethasone group (41% vs. 70%, P<0.05). 2) The rate of intracranial hemorrhage was less in the betamethasone group (0 vs. 20%, P<0.05). 3) The days of ventilator care was less in the betamethasone group among survival cases (27+/-3.2 vs. 5.2+/-4.6, P<05). 4) Arnong 14 women who delivered at 26 to 28 weeks, 4 received betamethasone before delivery and 10 did not. The rate of neonatal death was less in the betamethasone group (o% vs. 80%, P<0.05). 5) Among 48 women who delivered at 29 to 31 weeks, 18 received betamethasone before delivery and 30 did not. The rate of hyaline membrane disease was less in the betamethasone group (39% vs. 73%, P<0.05). CONCLUSION: Betamethasone appears to reduce hyaline membrane disease, intraven- tricular hemorrhage, neonatal death and the morbidity significantly in premature infants between 26 and 31 weeks' gestation.
Betamethasone
;
Enterocolitis, Necrotizing
;
Female
;
Hemorrhage
;
Humans
;
Hyaline Membrane Disease
;
Infant, Newborn
;
Infant, Premature*
;
Intracranial Hemorrhages
;
Pregnancy
;
Sepsis
;
Ventilation
;
Ventilators, Mechanical
7.The Study on 182 Cases of Exchange Transfusion.
Gie Hwa YOON ; Ock Seung JEONG ; So Won AHN ; Yung Seok JEON
Journal of the Korean Pediatric Society 1982;25(12):1243-1251
No abstract available.
8.Wegener's Granulomatosis Involving Lung and Middle Ear: A case report.
Kye Weon KWON ; Yoon Jung CHOI ; Hee Jeong AHN ; Min Soo HAN ; Dong Hwan SHIN
Korean Journal of Pathology 1998;32(6):470-473
A case of Wegener's granulomatosis is described, with special attention focused on the typical histologic findings and involvement of both middle ear and lung. The patient is a 37-year-old man presented with four-month history of cough and sputum. He had a past history of surgery of both ears because of otitis media followed by left facial palsy. Chest radiographs showed variable sized ill defined nodules in both lower lobes with internal airspace consolidation. Histologic preparations of the open lung biopsy specimens demonstrated a diffusely scattered palisading micro and macrogranulomas with central focus of neutrophils and necrotic collagen surrounded by histiocytes, histiocytic giant cells. Fibrinoid necrosis involved blood vessels and lung parenchyma. Chronic inflammation, diffuse granulation tissue formation and irregular fibrosis are also found in the lung parenchyma. The histologic findings of middle ear which was previously biopsied showed scattered palisading ill defined microgranulomas mixed with fibrotic tissue.
Adult
;
Biopsy
;
Blood Vessels
;
Collagen
;
Cough
;
Ear
;
Ear, Middle*
;
Facial Paralysis
;
Fibrosis
;
Giant Cells
;
Granulation Tissue
;
Granuloma
;
Histiocytes
;
Humans
;
Inflammation
;
Lung*
;
Necrosis
;
Neutrophils
;
Otitis Media
;
Radiography, Thoracic
;
Sputum
;
Vasculitis
;
Wegener Granulomatosis*
9.Two rare malignant tumors in the orbit.
In Sik HONG ; Jeong Yoon LEE ; Hee Chang AHN ; Yea Sik HAN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):486-493
No abstract available.
Orbit*
10.Unusual manifestation of right upper lober collapse due to bronchogenic carcinoma
Jeong Ho KWAK ; Seong Ku WOO ; Yup YOON ; Soon Yong KIM ; Chi Yul AHN
Journal of the Korean Radiological Society 1984;20(2):262-265
In the unusual manifestation of right upper lobe collapse confusing with mediastinal or parenchymal mass, both alteration of the pulmonary vessels and shifting pattern of the collapsed lobe to the periphery on supine positionare the key to the diagnosis of it rather than mediastinal or parenchymal mass. The mechanisms of these unusual manifestation s are obscure, however lobar torsion and gravity factor are considered to be a main process. Authors have experienced 2 cases of unusual manifestations of right upper lobe collapse due to bronchogenic carcinomaduring resent 2 years in Kyung Hee University hospital, and prsent radiologic findings.
Carcinoma, Bronchogenic
;
Diagnosis
;
Gravitation