1.Plasmin System in Placenta from Women with Normal and Preeclamptic Pregnancy.
Cheong Rae ROH ; Je Ho LEE ; Byung Koo YOON
Korean Journal of Obstetrics and Gynecology 1999;42(3):539-543
OBJECTIVES: the aim of this study was to evaluate plasmin system in placenta fiom women with normal and preeclamptic pregnancy. METHODS: The levels of urokinase-type plasminogen activator(uPA), tissue-type plasrninogen activator(tPA), uPA receptor(uPAR) and plasminogen activatar inhibitor-1(PAI-1) mRNAs were measured by Northern blotting in placenta hom sixteen women with normal (n""8) and preeclamptic (n""8) pregnancy. The levels of tPA protein and PAI-1 protein were also measured by Westerrn blotting. RESULTS: Densitometric measurements revealed no difference in the levels of uPA mRNA, uPAR mRNA, tPA protein and PAI-1 protein in placentas fiom normal and preeclamptic pregnancies. There was, however, a significant decrease in the level of 3.2 kb PAI-I mRNA in placentas from preeclamptic women compared to normal pregnant women. CONCLUSION: To the contrary of our expectation, 3.2 kb PAI-1 mRNA level was significantly lower in placenta from women with preeclampsia compared to normal pregnancy. This seems to reflect differential accumulation of PAI-1 mRNAs due to environmental intluences or decreased differentiation potential of villous trophoblasts to invasive trophoblasts in placenta from preeclamptic women compared to normal pregnant women. The mechanism that regulates plasmin system in human placenta needs further investigations.
Blotting, Northern
;
Female
;
Fibrinolysin*
;
Humans
;
Placenta*
;
Plasminogen
;
Plasminogen Activator Inhibitor 1
;
Plasminogen Activators
;
Pre-Eclampsia
;
Pregnancy*
;
Pregnant Women
;
RNA, Messenger
;
Trophoblasts
2.Changing pattern of serum leptin concentration in women undergoing clomiphene citrate challenge test or controlled ovarian hyperstimulation.
Doo Seok CHOI ; Jeong Won LEE ; Jin Kyung YOO ; Byung Koo YOON ; Je Ho LEE
Korean Journal of Obstetrics and Gynecology 1999;42(12):2744-2748
OBJECTIVE: To evaluate the changing pattern of serum leptin level and the correlation between estradiol level during the clomiphene citrate challenge test(CCCT) or controlled ovarian hyperstimulation(COH) cycle. METHODS: Twenty-seven women who underwent CCCT and fourteen women who underwent controlled ovarian hyperstimulation were recruited to measure the serum leptin level. After correction of serum concentration with body mass index(BMI), changes of leptin level and correlation with serum estradiol level during CCCT and COH cycle were analyzed. RESULTS: Circulating leptin levels were significantly correlated with BMI at each time point in CCCT cycle(P<0.01). In CCCT cycle, leptin/BMI level was significantly increased at midluteal phase compared to that of menstrual cycle day 3 and 10(p<0.05). In women with regular menstruation, leptin/BMI level at midluteal phase was significantly higher than that of menstrual day 3 and 10, but this difference was not seen in women with irregular menstruation. The leptin/BMI level in COH cycle showed increasing tendency throughout ovarian stimulation. But there was no significant correlation between leptin/BMI and estradiol level in CCCT and COH cycle. CONCLUSION: There is a significant correlation between BMI and circulating leptin level. Midluteal leptin level is significantly higher than that of follicular phase in CCCT cycle, and there is an increasing tendency in leptin level after ovarian stimulation in CCCT and COH cycle without statistical significance. These findings suggest that circulating estradiol concentration has no major influence on circulating leptin level.
Clomiphene*
;
Estradiol
;
Female
;
Follicular Phase
;
Humans
;
Leptin*
;
Menstrual Cycle
;
Menstruation
;
Ovulation Induction
3.Clinical Study of Anesthesia for Ambulatory Surgical Patients .
Jin Koo LEE ; Hyung Bae YOON ; Soon II KIM ; Kang Hee CHO
Korean Journal of Anesthesiology 1980;13(4):339-343
There is the trend of increasing number of outpatients who are requiring surgical intervention because of medical insurance and general improvement of economic state. Ambulatory surgical clinics are prospering in the United States. Thus we have analyzed 1957 cases of outpatient anesthesia excluding local infiltration performed by surgeons from total of 4302 cases o fout patient surgery during the 5 year period between 1975 and 1979. The results of this analysis were as follows: 1) Ketamine IM or IV was used as a sole agent in 500 cases who were under 12 years of age and mean operation and recovery time were 19.95 and 58. 45 minutes, respectively. 2) Mean operation and recovery time for 1,125 cases of pentothal+N2O+O2, anesthesia were 15. 55 and 108. 23 minutes, respectively. 3) For 321 cases of halothane+N2O+O2, anesthesia, mean operation and recovery time were 40.67 and 145. 94 minutes, respectively. 4) During recovery period there were no serious complications or mortality. 5) The majority of 1,125 among 1,957cases were gynecological outpatients and the rest were distributed among the surgical departments and dermatology, 6) Pentothal, nitrous oxide, halothane and ketamine were used safely for the outpatient anesthesia according to our experiences.
Anesthesia*
;
Clinical Study*
;
Dermatology
;
Halothane
;
Humans
;
Insurance
;
Ketamine
;
Mortality
;
Nitrous Oxide
;
Outpatients
;
Surgeons
;
Thiopental
;
United States
4.Characterization of Lymphocyte Subset and Cytokine Profile in the Peripheral Blood and the Peritoneal Fluid of Women with Endometriosis.
Je Ho LEE ; Jung Gu KIM ; Doo Seok CHOI ; Jeong Won LEE ; Byung Koo YOON ; Yoon Sun YANG ; Dae Won KIM ; Dong Ho KIM
Korean Journal of Obstetrics and Gynecology 1998;41(12):2980-2985
OBJECTIVE: Endometriosis is a common and enigmatic disease affecting the reproductive life and health of women. Although the retrograde menstruation is a well established model for both transplantation and induction theories, the discrepancy between an incidence of retrograde menstruation and a prevalence for endometriosis suggests the possibility that the development and the progression of endometriosis is associated with individual susceptibility such as altered immune function. An impaired immune response may result in a defect in the ability to remove refluxed menstrual debris, thereby increasing the possibility of endometriosis. We carried out the study to elucidate the immunologic alteration in patients with endometriosis. MATERIALS and METHODS: Fifty-six patients undergoing pelviscopic surgery or open laparotomy for benign gynecological disease were enrolled in this study. The study groups consisted of group I (normal control patients, N=22), group II (endometriosis stage I and II, N 17), and group III (endometriosis stage III and IV, N=17). Lymphocyte subset including total T cell, helper T cell, suppressor T cell, B cell, helper/suppressor ratio, natural killer (NK) cell, monocyte population and cytokine profile including interleukin (lL)-1, soluble interleukin-2 receptor (slL-2R), IL-2, IL-6, IL-S, monocyte chemoattractant protein (MCP)-1 of peripheral blood and peritoneal fluid were analyzed using flow cytometry and enzyme-linked immunosorbant assay (ELISA) method respectively. RESULTS: Peripheral blood and peritoneal fluid lymphocyte subset were indistinguishable among the 3 groups (p>0.05). And there were no significant difference in peripheral blood and peritoneal fluid cytokine profile among the 3 groups except peripheral blood MCP-1 level. Group III showed higher peripheral blood level of MCP-1 than control patients (p<0.05). CONCLUSION: In this study, lymphocyte subset and cytokine profile except MCP-1 in peripheral blood and peritoneal fluid from patients with endometriosis did not differ from those of the control group. Immunologic alterations of patients with endometriosis might be resulted not from the changes of the number of lymphocyte subsets and cytokine, but from the modification of functions.
Ascitic Fluid*
;
Endometriosis*
;
Female
;
Flow Cytometry
;
Humans
;
Incidence
;
Interleukin-2
;
Interleukin-6
;
Interleukins
;
Laparotomy
;
Lymphocyte Subsets*
;
Lymphocytes*
;
Menstruation Disturbances
;
Monocytes
;
Prevalence
5.Clinical Significance of Serum Leptin Level in Adolescent Patients with Menstrual Abnormalities.
Kuk Sun HAN ; Byung Koo YOON ; Je Ho LEE ; Doo Seok CHOI
Korean Journal of Obstetrics and Gynecology 2001;44(6):1078-1083
OBJECTIVES: Leptin is known as an endocrinologic mediator which acts on the hypothalamic- pituitary-ovarian axis. This study was undertaken to evaluate whether the serum leptin level affects the menstrual cycles of adolescents and to analyze the clinical features of adolescents with abnormal serum leptin levels. METHODS: Seventeen normal controls and 118 patients with menstrual abnormalities were included in this study. The ages of patients ranged from 15 to 25 years. Patients with menstrual abnormality were divided into five subgroups according to the etiologies: group I; premature ovarian failure(n=8), group II; primary amenorrhea without congenital structural abnormality(n=14), group III; oligomenorrhea(n=12), group IV; secondary amenorrhea(n=53), group V; dysfunctional uterine bleeding(n=31). After collection of blood samples, the serum leptin levels were measured with a radioimmunoassay kit. The serum leptin level and the corrected leptin level(leptin/body mass index(BMI)) were compared and the clinical features of those with abnormal leptin concentration (>mean+standard deviation,
6.A Histopathologic Study of the Pseudomembranes harvested during Revision Total Hip Arthroplasty.
Myung Chul YOO ; Yoon Je CHO ; Yong Hwan KIM ; Jae Ho SOH ; Jeong Heui LEE ; Yong Koo PARK
The Journal of the Korean Orthopaedic Association 2000;35(5):777-783
PURPOSE: To analyze the results of the foreign body reaction to polyethylene, polymethylmethacrylate, and metal debris and effect on bone by comparing histopathologic finding of pseudomembrane (interface membrane) which was obtained from failed cemented or cementless THA by aseptic loosening. MATERIALS AND METHODS: Of total 50 cases, we analyzed results between 25 cases of cemented THA and 25 cases of cementless THA. Follow-up period between primary and revision THA was average 8 years 5 months. Tissue specimens were harvested, stained with Hematoxylin-Eosin, and examined by light microscope. Histologic study of various items was done. RESULTS: The fibrous membrane between bone-to-cement or bone-to-metal could be roughly divided into three distinct histological layers in cross section histopathology. These tissues were characterized by histiocytes, infiltration of foreign body giant cells and fibrosis in all specimens, and infiltration of lymphocytes and plasma cells was relatively rare, and aggregation of polymorphonuclear leukocytes was invisible. CONCLUSION: Although there were no significant differences in histologic findings between the regions of ten tissue specimens, there was significant difference between the degree of polyethylene or cement debris in numbers and the degree of foreign body reaction associated with increased infiltrations of giant cells, and foreign body reaction to polyethylene debris seems to be main cause of aseptic loosening of prosthesis.
Arthroplasty, Replacement, Hip*
;
Fibrosis
;
Follow-Up Studies
;
Foreign-Body Reaction
;
Giant Cells
;
Giant Cells, Foreign-Body
;
Histiocytes
;
Lymphocytes
;
Membranes
;
Neutrophils
;
Plasma Cells
;
Polyethylene
;
Polymethyl Methacrylate
;
Prostheses and Implants
7.Effects of hypothyroidism on cell proliferation and neuroblasts in the hippocampal dentate gyrus in a rat model of type 2 diabetes.
Sun Shin YI ; In Koo HWANG ; Ji Won CHOI ; Moo Ho WON ; Je Kyung SEONG ; Yeo Sung YOON
Anatomy & Cell Biology 2010;43(3):185-193
We observed how the hypothyroid state affects diabetic states and modifies cell proliferation and neuroblast differentiation in the hippocampal dentate gyrus (DG). For this, 0.03% methimazole, an anti-thyroid drug, was administered to 7-week-old, pre-diabetic Zucker diabetic fatty (ZDF) rats by drinking water for 5 weeks, and the animals were sacrificed at 12 weeks of age. At this age, corticosterone levels were significantly increased in the ZDF rats compared to those in the control (Zucker lean control, ZLC) rats. Methimazole (methi) treatment in the ZDF rats (ZDF-methi rats) significantly decreased corticosterone levels and diabetes-induced hypertrophy of adrenal glands. In the DG, Ki67 (a marker for cell proliferation)- and doublecortin (DCX, a marker for neuronal progenitors)-immunoreactive cells were much lower in the ZDF rats than those in the ZLC rats. However, in ZDF-methi rats, numbers of Ki67- and DCX-immunoreactive cells were similar to those in the ZLC rats. These suggest that methi significantly reduces diabetes-induced hypertrophy of the adrenal gland and alleviates the diabetes-induced reduction of cell proliferation and neuronal progenitors in the DG.
Adrenal Glands
;
Animals
;
Cell Proliferation
;
Corticosterone
;
Dentate Gyrus
;
Drinking Water
;
Hypertrophy
;
Hypothyroidism
;
Methimazole
;
Neurons
;
Rats
8.Changes in biochemical bone markers during pregnancy and puerperium.
Byung Koo YOON ; Jeong Won LEE ; Doo Seok CHOI ; Cheong Rae ROH ; Je Ho LEE
Journal of Korean Medical Science 2000;15(2):189-193
To elucidate the changes in bone turnover during pregnancy and puerperium, we measured serially the levels of serum osteocalcin and urine deoxypyridinoline (Dpy) as markers of bone formation and bone resorption, respectively, in 22 healthy women with normal pregnancy. Nineteen non-pregnant women served as control. The Dpy levels increased significantly at 16 weeks of pregnancy and remained elevated thereafter. The levels of osteocalcin, however, were significantly decreased at 16 weeks of pregnancy and elevated later at 6 weeks postpartum. Bone turnover ratio (Dpy/osteocalcin) continued to rise during pregnancy, but returned to control levels 6 weeks after delivery. Dpy levels and bone turnover ratio during puerperium tended to be higher in 17 breast-feeding women than those of 5 exclusive bottle-feeders. In conclusion, bone resorption begins to increase from the second trimester of pregnancy and calcium release from bone tissue might play a major role in calcium homeostasis during the whole period of pregnancy as well as during lactation.
Adult
;
Amino Acids/urine
;
Analysis of Variance
;
Biological Markers*
;
Bone Resorption/physiopathology*
;
Calcium/metabolism
;
Female
;
Human
;
Lactation/physiology
;
Osteocalcin/blood
;
Osteoporosis/physiopathology*
;
Pregnancy
;
Pregnancy Complications/physiopathology*
;
Puerperium/physiology*
9.Idiopathic Retroperitoneal Fibrosis: Report of a Case.
Bang Whan JUN ; Seung Gab YANG ; Jong Ho LEE ; Jai Young YOON ; Hyun Je NA ; Yong Koo PARK
Korean Journal of Urology 1986;27(6):939-943
Idiopathic retroperitoneal fibrosis is a fibrotic process of the retroperitoneum that frequently produces ureteral obstruction. We report a case of idiopathic retroperitoneal fibrosis in a 22 year-old male patient with brief review of literatures.
Humans
;
Male
;
Retroperitoneal Fibrosis*
;
Ureteral Obstruction
;
Young Adult
10.Intactness of zona pellucida does not affect the secretion of a trypsin-like protease from mouse blastocyst.
Seong Soo HWANG ; Eun Young LEE ; Yung Chai CHUNG ; Byung Koo YOON ; Je Ho LEE ; Doo Seok CHOI
Journal of Korean Medical Science 2000;15(5):529-532
Assisted hatching (AH), which is known to improve the hatching potential of mammalian embryos, has been used to increase the pregnancy rate in in vitro fertilization cycles. However, the effect of AH on a trypsin-like protease, which is known to be associated with the hatching process, has not been studied. In this study, we evaluate whether the intactness of zona pellucida affects the secretion of a trypsin-like protease from mouse blastocyst. Four- to 8-cell stage mouse embryos were collected at 66- to 68 hr after hCG injection and divided into 3 groups according to the manipulation of zona pellucida. The groups are no treatment (control), drilling of zona pellucida (ZD) and thinning of zona pellucida (ZT). The activity of a trypsin-like protease, blastocyst development and hatching rate were compared among the three groups at 110 and 135 hr after hCG injection, respectively. The protease activity and blastocyst development were not significantly different among control, ZD and ZT groups at 110 and 135 hr after hCG injection, respectively. However, the hatching rate of ZD and ZT groups was significantly higher than that of control group at each time, respectively (p>0.001). Even in the zona pellucida removed embryos, the protease activity did not differ from the control group. In conclusion, the secretion of a trypsin-like protease from mouse blastocyst does not seem to be affected by the intactness of zona pellucida.
Animal
;
Blastocyst/secretion
;
Blastocyst/enzymology*
;
Female
;
Fertilization in Vitro/methods
;
Gonadotropins, Chorionic/pharmacology
;
Mice
;
Mice, Inbred C57BL
;
Mice, Inbred CBA
;
Pregnancy
;
Serine Endopeptidases/secretion
;
Serine Endopeptidases/metabolism*
;
Zona Pellucida/physiology*
;
Zona Pellucida/drug effects