1.Seven Autopsy Cases of Anencephaly.
Sang Taek LEE ; Chang Ho HAN ; Soo Yong KIM ; Jung Kwon LEE ; Young Dae KWON
Journal of the Korean Pediatric Society 1987;30(11):1317-1322
No abstract available.
Anencephaly*
;
Autopsy*
2.The association of Vitamin D and Parathyroid Hormone with Bone Mineral Density in Korean Postmenopausal Women.
Won Cheol CHANG ; In Soon KWON ; Byung Joo PARK ; Sang Hoon BAE ; Sang Chul PARK
Journal of the Korean Geriatrics Society 2003;7(3):194-205
BACKGROUND: Osteoporosis results from bone loss due to menopause [estrogen(E) deficiency] and aging. Initial skeletal effect of menopause is accelerated bone resorption with an increase in seurm calcium(Ca) and compensatory but inadequate bone formation. Secretion of parathyroid hormone(PTH) is suppressed at this time. Postmenopausal osteoporosis results in fractures predominantly of trabecular bone, i.e., vertebra. With aging, secondary hyperparathyroidism by low serum Ca and vitamin D deficiency superim poses. Senile osteoporosis produces hip fractures, area of cortical bone. The aim of this study was to- examine the association of vitamin D[25(OH)D] and intact(i) PTH with bone mineral density(BMD) after controlling for suggested confounding factors, and the possibility of low serum vitamin D and high serum iPTH concentration could impact bone loss in Korean postmenopausal women. METHODS: Data from 188 postmenopausal Korean women aged 42 to 69 were analyzed through BMD, serum 25(OH)D, iPTH, Ca, phosphorus(P), alkaline phosphatase(ALP) and clinical characteristics. Factors affecting BMD was determined by Pearson correlation and the relationship between lumbar and femoral neck BMD and vitamin D[25(OH)D] and iPTH was assessed by multiple regression analysis after adjus- ting for suggested confounding factors. RESULTS: Lumbar and femoral neck BMD, serum Ca, P were decresaed and serum iPTH was increased with aging. In Pearson`s correlation, significant contributing factors to lumbar BMD was age, height, weight, menarche, year since menopause(YSM) and ALP. And significant contributing factors to femoral neck BMD was age, height, weight, menarche, YSM and iPTH. No relationship could be demonstrated between serum vitamin D[25(OH)D] and lumbar and femoral neck BMD. How ever, after controlling for potential confounding factors, a correlation was found between vitamin D[25(OH)D] and both of lumbar (p=0.013) and femoral neck BMD(p=0.077). iPTH was inversely related to femoral neck BMD(p=0.004) only in multiple linear regression. CONCLUSION: Serum vitamin D[25(OH)D] was influencing both of vertebral and femoral neck BMD, which suggests a significant role of vitamin D deficiency in the pathogenesis of postmenopausal osteo- porosis. In age related remodeling and loss of bone, increased serum iPTH might have additive role in cortical bone of femur. These findings suggest that vitamin D is very important for optimal bone health and a deleterious effect of increased iPTH on cortical bone loss. Adequate calcium and vitamin D status have to be maintained to prevent osteoporosis in postmenopausal Korean women.
Aging
;
Bone Density*
;
Bone Resorption
;
Calcium
;
Female
;
Femur
;
Femur Neck
;
Hip Fractures
;
Humans
;
Hyperparathyroidism, Secondary
;
Linear Models
;
Menarche
;
Menopause
;
Osteogenesis
;
Osteoporosis
;
Osteoporosis, Postmenopausal
;
Parathyroid Hormone*
;
Spine
;
Tolnaftate
;
Vitamin D Deficiency
;
Vitamin D*
;
Vitamins*
3.Clinical Study on Mitral Valve Prolapse.
Chong Ik LEE ; Joo Hee CHANG ; Won Kun PARK ; In Kwon HAN ; Kwon Sam KIM ; Myung Shick KIM ; Jung Sang SONG
Korean Circulation Journal 1984;14(1):51-59
During 1 year and 9 month period, from September, 1980 to June, 1983, retrospective study was performed on 35 patients with Mitral Valve Prolapse at Kyung Hee University Medical Center. And the following results were obtained; 1) The mitral valve prolapse syndrome presents with various cardiovascular symptoms including dyspnea(63%), palpitation(49%), chest pain(34%), syncope and dizziness(11%). 2) Of 35 patients with MVP, 17 cases were isolated MVP, 13 cases were associated with cardiovascular disorders and 5 cases were associated with non-cardiovascular disorders. 3) Electrocardiographic abnormalities were found in 20 patients with MVP. The most common abnormality was ST-T change and atrial fibrillation, VPB, RBBB, first degree A-V block and W-P-W syndrome were also noted. 4) QTc interval prolongation was more common in serverely symptomatic patients with MVP. 5) 18 cases in 35 patients showed systolic click or murmur on phonocardiography. 6) Of 35 patients with MVP, 19 patients demonstrated prolapse of the anterior leaflet, 11 patients demonstrated prolapse of posterior leaflet and 5 patients demonstrated prolapse of the both leaflets. 7) There were severe derangement on echocardiography in severely symptomatic patients were MVP.
Academic Medical Centers
;
Atrial Fibrillation
;
Echocardiography
;
Electrocardiography
;
Humans
;
Mitral Valve Prolapse*
;
Mitral Valve*
;
Phonocardiography
;
Prolapse
;
Retrospective Studies
;
Syncope
;
Thorax
4.A Case of Epidermolysis Bullosa Letalis.
Sang Taek LEE ; Chang Ho HAN ; Soo Young KIM ; Jung Kwon LEE ; Young Dae KWON ; Han Ik BAE
Journal of the Korean Pediatric Society 1987;30(7):818-825
No abstract available.
Epidermolysis Bullosa*
;
Epidermolysis Bullosa, Junctional*
5.Expression of Antigenic Surface Molecules of Pneumocystis Carinii by Immunoelectron Microscopic Examination.
Kun Young KWON ; Seung Che CHO ; Sang Pyo KIM ; Kwan Kyu PARK ; Eun Sook CHANG
Korean Journal of Pathology 1998;32(6):393-403
This study was carried out to investigate the morphologic characteristics and localization of antigenic molecules of Pneumocystis carinii in experimentally induced P. carinii pneumonia in rats. After six weeks of administration of low protein diet and dexamethasone, Sprague-Dawley rats were sacrificed to submit lungs or bronchoalveolar lavage for the study. Monoclonal (092, 900, 902, and 904) and polyclonal (SP-D) antibodies were used for immunohistochemistry and immunoelectron microscopy (ITEM and ISEM). Immunohistochemically P. carinii organisms were well identified as clusters or separated forms in the alveolar spaces being frequently attached to the alveolar walls. Immunoelectron microscopically the adherences of gold particles were observed on the surface of all stages of the P. carinii. Occasionally positive immunogold labeling was observed in the cytoplasm of the trophozoites and on the pellicle of the intracystic bodies within the cysts. The monoclonal antibodies 092, 900, 902, and 904 reacted mainly with pellicles of P. carinii, whereas SP-D labeled on the pellicles, intracystic bodies, cytoplasms of the alveolar macrophages, and free floated surfactant material in the alveolar spaces. The immunogold particles were observed more diffusely and intensely in the cysts than in the trophozoites. These results indicate that antigen is mainly localized on the pellicles, and accumulated during development from the trophozoite to the cyst stages.
Animals
;
Antibodies
;
Antibodies, Monoclonal
;
Bronchoalveolar Lavage
;
Cytoplasm
;
Dexamethasone
;
Diet, Protein-Restricted
;
Immunohistochemistry
;
Lung
;
Macrophages, Alveolar
;
Microscopy, Electron
;
Microscopy, Immunoelectron
;
Pneumocystis carinii*
;
Pneumocystis*
;
Pneumonia
;
Pulmonary Surfactant-Associated Protein D
;
Rats
;
Rats, Sprague-Dawley
;
Trophozoites
6.Myofibrosarcoma of the Breast: A case report .
Chan Kwon JUNG ; Kyo Young LEE ; Chang Suk KANG ; Sang In SHIM ; Byung Kee KIM
Korean Journal of Pathology 2000;34(1):96-98
Myofibrosarcoma of the breast is a rare malignant mesenchymal tumor that has been reported in only four well documented cases so far. We report a case of myofibrosarcoma of the breast in an 88-year-old man who complained of a palpable mass for 1 year. Microscopically, the tumor consisted mainly of spindled cells, arranged in irregular fascicles and embedded in broad bands of dense hyalinized collagen. It showed ill-defined border infiltrating the adjacent adipose tissue, moderate cellular pleomorphism, and high mitotic rate (8~9/10 HPF). Immunohistochemical study confirmed myofibroblastic differentiation of the tumor cells with diffuse strong reaction for vimentin, smooth muscle actin, and fibronectin.
Actins
;
Adipose Tissue
;
Aged, 80 and over
;
Breast*
;
Collagen
;
Fibronectins
;
Humans
;
Hyalin
;
Muscle, Smooth
;
Myofibroblasts
;
Vimentin
7.Molecular Cloning of Mouse Interleukin-2 Receptor bata-Chain Gene Promoter.
Chang Kwon KO ; Sang Kyu YE ; Bon Hong MIN ; Kwang Ho LEE
Korean Journal of Immunology 1998;20(3):285-288
No abstract available.
Animals
;
Cloning, Molecular*
;
Interleukin-2*
;
Mice*
8.The Effect of Left Ventricualr Mass on the Transmitral Blood Flow.
Wang Seong RYU ; Sang Jun SHIM ; Ki Ik KWON ; Chang Soon KANG ; Un Ho RYOO
Korean Circulation Journal 1988;18(1):103-111
Measurements of mitral flow velocity by pulsed Doppler echocardiography are very useful in evaluating left ventricular diastolic filling properties. In hypertensive patients, abnormalities of diastolic function may precede systolic abnormalities and may serve as a more sensitive marker of end organ damage. We estimated left ventricular nass by 2-D echo short axis area-length method and compared with peak mitral flow velocity in early diastole(PFVE)and during atrial systolic(PFVA). There was a significant increase of LV mass and LV mass indices in the hypertensive patients and PFVE/PFVA ratio was decreased in them. Aithough there was no relationship between blood pressure and PFVE/PFVA ratio, a significant relationship was demonstrated between LV mass index and PFVE/PFVA ratio in the hypertensive patients.
Axis, Cervical Vertebra
;
Blood Pressure
;
Echocardiography, Doppler, Pulsed
;
Humans
9.The effects of prestaglandin Ea o the synthesis of type I collagenase mRNA of cultured fibroblasts from hypertrophic scar and keloid.
Gil Hwan JO ; Do Myung CHANG ; Sang Hoon CHUNG ; Paik Kwon LEE ; Young Jin KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(6):1119-1124
To investigate the effects of prostaglandin E1(PGX1) in prevention of proliferative scar formation, we cultured fibroblasts of normal skin (NS), hypertrophic scar (HS) and keloid (KL) tissues obtained from patients. We have compared type I collagenase production of cultured fibroblasts from normal skin, hypertrophic scar, and keloid tissues under various concentrations of PGE1. Our results demonstrate that type I collagenase production was significantly increased after addition of PGE1 in HS and KL, but not NS. Type I collagenase production of HS and KL fibroblasts were increased similarly in 10M and 10M of PGE1 and maximally increased in the concentration of 10M. This promotive effects of PGE1 on the production of type I collagenase was larger in KL than in HS. These results also suggest that PGE1 may play the promotive effects on type I collagenase production in dose-dependent manner. PGE1 may have a role in the prevention of hypertrophic scar and keloid by enhancing the production of type I collagenase of HS and KL fibroblasts. The promotive effects of PGE1 on type I collagenase production was variable depending on its concentration, and its effects was maximum in certain optimal condition. The maximally effective concentration of PGE1 in the prevention of proliferative scar formation should be searched in further investigations for clinical use.
Alprostadil
;
Cicatrix
;
Cicatrix, Hypertrophic*
;
Collagenases*
;
Fibroblasts*
;
Humans
;
Keloid*
;
RNA, Messenger*
;
Skin
10.Mucous Gland Adenoma of the Bronchus; Light Microscopic and Ultrastructural Features.
Mi Seon KWON ; Kyo Young LEE ; Young Shin KIM ; Chang Suk KANG ; Sang In SHIM
Korean Journal of Pathology 1997;31(9):898-901
We present a case of mucous gland adenoma arising from the main bronchus of the lower lobe of the left lung in terms of clinicopathologic, immunohistochemical, and ultrastructural aspects as well as review of related literatures. The patient, a 31-year-old female, was admitted to Catholic University Medical College Hospital with complaints of coughing and purulent sputum for about seven years. The chest CT showed a severely calcified tumor in the left lower lobe of the lung. Grossly, the calcified tumor arising from the main bronchus protruded into the lumen and showed bronchiectasis of the lower lobe and atelectasis of the upper lobe of the lung. The tumor was pale brown-gray and sharply circumscribed and showed some small cystic spaces filled with mucoid material. Microscopically, most of the tumor showed dystrophic calcification. The growth pattern of the tumor is composed of cysts, tubules, and glands lined by cytologically bland columnar, cuboidal, or flattened mucus secreting cells. Electron micrograph of tumor cells showed some round or oval mucous granules measuring 0.5-1.8 micrometer.
Adenoma*
;
Adult
;
Bronchi*
;
Bronchiectasis
;
Cough
;
Female
;
Humans
;
Lung
;
Mucus
;
Pulmonary Atelectasis
;
Sputum
;
Tomography, X-Ray Computed