1.Effects of Cytokines on Proliferation Responses of Th1 Cells to Mitogen.
Tai You HA ; Me Yae LEE ; Seung Won JUNG
Korean Journal of Immunology 1997;19(1):73-82
Thl cloned cell line 28-4 which is an I-A + KLH - specific Th1 type clone of (C57BU6xC 3H) F1 origin was kindly provided by professor Tomio Tada. In these studies, employing these cloned cells, the author investigated both proliferation responses of Thl cells in the presence of various concentrations of cytokines, such as IL-2, IL-4 or IL-6 and proliferation of Thl cells to various concentration of mitogens such as PHA, ConA or PWM. In addition, the author also investigated the proliferation response of Th1 cells to the optimal dose of PHA, ConA or PWM in the presence or absence of above mentioned cytokines. It was found that IL-2, IL-4 or IL-6 alone their growth stimulation degree was dependent on cytokine concentration and that PHA, ConA or PWM stimulated Thl cell proliferation and optimal dose of PHA ConA and PWM was 3 g, 4 g and 2 g per ml, respectively. In addition, proliferation response of Th1 cells to ConA or PWM in the presence of IL-2 was significantly enhanced, but the proliferation response to PHA was not increased significantly. However, IL-4 did not significantly modulate mitogen-activated Thl cell proliferation response. Interestingly, IL-6 decreased PHA- or ConA-activated proliferation of Thl cells, but did not change PWM-activated proliferation. Taken together, these studies strongly suggested that IL-2, IL-4 or IL-6 itself clone stimulated the Thl cell proliferation and that PHA, ConA or PWM also stimulated Thl cell proliferation. In addition, these studies also indicated that IL-2 increased ConA- or PWM-activated Thl cell proliferation, but IL6 inhibited PHA- or ConA-activated Th1 cell proliferation and that IL-4 did not significantly change the mitogen-activated Th1 cell proliferation.
Cell Line
;
Cell Proliferation
;
Clone Cells
;
Cytokines*
;
Interleukin-2
;
Interleukin-4
;
Interleukin-6
;
Mitogens
;
Th1 Cells*
2.A Case of Emergency Cerclage for Advanced Cervical Incompetence.
Hyeon Chul KIM ; Myung Choel SHIN ; Mee Wha LEE ; You Me LEE ; Wee Hyun LEE
Korean Journal of Obstetrics and Gynecology 1999;42(9):2081-2083
Emergency cerclage commonly known as that performed in the setting of advanced cervical dilatation with bulging membranes and associated with significantly increased failure rates. We experienced a successful emergency cerclage for advanced incompetent internal os of cervix ( IIOC ). Pregnancy was prolonged and we delivered viable fetus. Hereby we report this case with the brief review of literature.
Cervix Uteri
;
Emergencies*
;
Female
;
Fetus
;
Labor Stage, First
;
Membranes
;
Pregnancy
3.Two Cases of Fetal Arachnoid Cyst Diagnosed by Prenatal Ultrasonography.
Jee Hye KIM ; You Me LEE ; Grace LEE ; Jim Ho CHO ; Chung No LEE
Korean Journal of Perinatology 1999;10(4):528-531
Fetal abnormalities in central nervous system are now recognized more often with the increasing use of high-resolution prenatal sonography. Arachnoid cysts, because of their compression of adjacent brain tissue, may require neurosurgical intervention but otherwise they have a good long- term prognosis. The differential diagnosis of intracranial lesions is important to allow accurate counselling and also to optimize neonatal management. We report the two cases of fetal arachnoid cyst diagnosed with prenatal ultrasonography
Arachnoid Cysts
;
Arachnoid*
;
Brain
;
Central Nervous System
;
Diagnosis, Differential
;
Prenatal Diagnosis
;
Prognosis
;
Ultrasonography
;
Ultrasonography, Prenatal*
5.Comparison of Diagnostic Accuracy in Uterine Pathology among HSG, Hysteroscopy, and Sono-Hysterography.
Sun Hee CHA ; Jung Kyo CHOE ; You Me LEE ; Wee Hyun LEE ; Kyung Sub CHA
Korean Journal of Obstetrics and Gynecology 1997;40(8):1662-1668
Hysterosalpingography and Hysteroscopy have been used for the detection of intraute-rine pathology such as polyps, submucous myomas, intrauterine adhesion and endometrial hyperplasia or cancer. Recently the ultrasound has also been utilized for the detection of uterine pathology. Therefore the purpose of this study was to evaluate the diagnostic efficacy of SonoHysterography in detection of intrauterine pathology compared with HSG and Hysteroscopy. 32 patients underwent Sono-Hysterography and Hysteroscopy for the evaluation of the uterine pathology from september 1995 to January 1996. Nine of 32 patients had infertility problem and HSG performed prior to Sono-Hysterography and Hysteroscopy. The results are as follows : 1. The patients' ages ranged from 20 to 50 years(median 37.9). 2. All 9 patients with infertility who had positive HSG findings in uterine cavity showed the intrauterine pathology in Sono-Hysterography as well as Hysteroscopy. The detail findings are as follows :septated uterus(n=2), intrauterine adhesion :IUA(n=3), endometrial polyp(n=3), and IUA combined endmetrial hyperplasia(n=1). 3. Twenty two of 23 patients with abnormal uterine bleeding showed the intrauterne pathology and one patient had negative finding in Sono-Hysterography. However, Hysteroscopy revealed positive intrauterine pathology in 22 patients who had abnormal uterine bleeding. One patients who had positive finding in Sono-Hysterograply showed negative by Hysterography. In contrast, one patient who had negative finding in Sono-Hysterography had positive uterine pathology with polyp in Hysteroscopy. The histologic pathology in all 23 patients reported endometrial polyp(n=12), placental polyp(n=2), submucous myoma(n=1), endometrial hyperplasia(n=5), endometrial cancer(n=1), normal endometrial finding(n=2). 4. Sono-Hysterography, therefore, has a sensitivity and positive predictive value of 96.6%, 93.5% respectively. Our study showed a positive Sono-Hysterography is very predictive of the intrauterine pathology. Sono-Hysterography is safe, quick and minimal invasive procedure. So it is an invaluable technique in the evaluation of uterine cavity.
Endometrial Hyperplasia
;
Female
;
Humans
;
Hysterosalpingography
;
Hysteroscopy*
;
Infertility
;
Myoma
;
Pathology*
;
Polyps
;
Ultrasonography
;
Uterine Hemorrhage
6.A case of male pseudohermaphroditism due to 17 ?hydroxylase deficiency.
Chang Soo PARK ; Me Lee LEE ; Eun Hwan JUNG ; Jung Gu KIM
Journal of Korean Society of Endocrinology 1993;8(3):363-369
No abstract available.
46, XY Disorders of Sex Development*
;
Humans
;
Male*
7.A Preliminary Study on the Expression and Regulation of C-X-C Chemokine Genes in a Human Colon Epithelial Cell Line.
Suk Kyun YANG ; Ok Hee KIM ; Me Hwa LEE ; Seon Me PARK ; Hwoon Yong JUNG ; Weon Seon HONG ; Young Il MIN
Journal of the Korean Society of Coloproctology 1998;14(1):21-26
Human colon epithelial cells secrete an array of proinflammatory cytokines that includes IL-8, MCP-1, GM-CSF, TNF alpha and IL-6. This response may serve to attract neutrophils and macrophags to the site of infection. In addition to IL-8 and MCP-1, the chemokine family contains other members, which, alone or in combination, can recruit and/or activate inflammatory and lymphoid cells. In this study, we asked whether colon epithelial cells express a broader array of chemokines than previously described. The colon epithelial cell line, Caco-2, was stimulated for 3h with IL-1 alpha, or was infected with Salmonella dublin. RNA was extracted and chemokine mRNA levels were determined by quantitative reverse transcription-PCR using internal RNA standards. Ex pression of GRO alpha, GRO beta, GRO gamma and IP-10 increased by bacterial infection or IL-l alpha stimulation. These data strongly support the notion that epithelal cells are an important and integral component of the host's natural immune system.
Bacterial Infections
;
Chemokines
;
Colon*
;
Cytokines
;
Epithelial Cells*
;
Granulocyte-Macrophage Colony-Stimulating Factor
;
Humans*
;
Immune System
;
Interleukin-1alpha
;
Interleukin-6
;
Interleukin-8
;
Lymphocytes
;
Neutrophils
;
RNA
;
RNA, Messenger
;
Salmonella
8.Quinic Acid Alleviates Behavior Impairment by Reducing Neuroinflammation and MAPK Activation in LPS-Treated Mice
Yongun PARK ; Yunn Me Me PAING ; Namki CHO ; Changyoun KIM ; Jiho YOO ; Ji Woong CHOI ; Sung Hoon LEE
Biomolecules & Therapeutics 2024;32(3):309-318
Compared to other organs, the brain has limited antioxidant defenses. In particular, the hippocampus is the central region for learning and memory and is highly susceptible to oxidative stress. Glial cells are the most abundant cells in the brain, and sustained glial cell activation is critical to the neuroinflammation that aggravates neuropathology and neurotoxicity. Therefore, regulating glial cell activation is a promising neurotherapeutic treatment. Quinic acid (QA) and its derivatives possess anti-oxidant and anti-inflammatory properties. Although previous studies have evidenced QA’s benefit on the brain, in vivo and in vitro analyses of its anti-oxidant and anti-inflammatory properties in glial cells have yet to be established. This study investigated QA’s rescue effect in lipopolysaccharide (LPS)-induced behavior impairment. Orally administering QA restored social impairment and LPS-induced spatial and fear memory. In addition, QA inhibited proinflammatory mediator, oxidative stress marker, and mitogen-activated protein kinase (MAPK) activation in the LPS-injected hippocampus. QA inhibited nitrite release and extracellular signal-regulated kinase (ERK) phosphorylation in LPS-stimulated astrocytes. Collectively, QA restored impaired neuroinflammation-induced behavior by regulating proinflammatory mediator and ERK activation in astrocytes, demonstrating its potential as a therapeutic agent for neuroinflammation-induced brain disease treatments.
9.Modulation of graft-versus-host reaction, IL-6 production and lymphocyte proliforation by bestatin.
Tai You HA ; Jee Kyu KIM ; Young Min PARK ; Me Yae LEE ; Byong Suk PARK
Journal of the Korean Society for Microbiology 1991;26(1):87-104
No abstract available.
Interleukin-6*
;
Lymphocytes*
10.Transvaginal Sonographic Evaluation of Uterine Wall Thickness on Prior Cesarean Scar.
Joo Yun CHO ; You Me LEE ; In Hyun KIM ; Chang Jo CHUNG ; SSung Woon CHANG
Korean Journal of Obstetrics and Gynecology 1999;42(10):2229-2234
OBJECTIVES: Estimation of the anterior lower uterine segment (LUS) thickness difference who underwent prior cesarean delivery measured with transvaginal sonography at or after 36 gestational weeks (sonographic thickness) and a ruler during elective cesarean section (operation thickness) Methods: One hundred sixty women who underwent prior cesarean delivery had the thickness of their LUS measured with transvaginal sonography at or after 36 gestational weeks. The LUS thickness was measured with a ruler during elective cesarean section. We compared group I whose LUS was fairly well visualized 4 cm or more from the uterine cervix to group II which had less than 4 cm. RESULTS: The mean sonographic thickness of LUS was 1.7 0.8 mm and that of operation thickness was 1.9 0.5 mm. The mean difference of the two (thickness difference) was 0.5 0.5 mm. In 31.3% the sonographic thickness was same as the operation thickness and in 70.7% of the total with 0.5 mm or less difference, the sonographic thickness could be regarded as accurate. The thickness difference with the sonographic thickness with 2 mm or more was smaller than those with 1 mm or less (0.4 0.5; 0.6 0.6) and that of group I was smaller than that of group II (0.4 0.4; 0.9 0.6) (p< .05). CONCLUSION: The thickness difference was 0.5 0.5 mm and it was smaller when the LUS thickness is 2 mm or over, clearly visible 4 cm or over from the cervix.
Cervix Uteri
;
Cesarean Section
;
Cicatrix*
;
Female
;
Humans
;
Pregnancy
;
Ultrasonography*