1.Effect of Doxapram on the Recovery from Vecuronium and Atracurium Neuromuscualr Block.
Myung Hye PARK ; Kyung Hye MOON ; Myung Ae LEE
Korean Journal of Anesthesiology 1994;27(8):919-924
The purpose of this study is to investigate the effects of doxapram on the rates of spontaneous and neostigmine-induced recovery from neuromuscular block with vecuronium and atracurium. Following intravenous injection of either vecuronium (40 patients) or atracurium (40 patients), recovery index (RI) was measured without administering either doxapram or neostigmine (Group 1), or after administration of a combination of neostigmine 40 ug/kg and doxapram 1 mg/kg (Group 2), neostigmine 40 ug/kg (Group 3) or doxapram 1 mg/kg (Group 4) when twitch tension returned to 25% block of train of four response, each of the four group had 10 patients. The results were such that RI was significantly prolonged after vecuronium in the presence of doxapram compared with Group 1 (13.5 min vs 8.2 min). There was no significant difference in the RI after atracurium in the presence of doxapram compared with Group 1 (7.0 min vs 7.1 min). There was rapid recovery which was significant when neostigmine was administered with or without doxapram (2.4 min vs 2.3 min respectively after vecuronium; 2.3 min vs 2.4 min respectively after atracurium). The authors conclude that administration of doxapram in situation where neuromuscular block with vecuronium is not adequately antagonized does not contribute to rapid recovery from neuromuscular block.
Atracurium*
;
Doxapram*
;
Humans
;
Injections, Intravenous
;
Neostigmine
;
Neuromuscular Blockade
;
Vecuronium Bromide*
2.Identification of Differentially Expressed Genes in Human Fetal Astrocytes.
Hye Myung YOO ; Hyun Sook PARK ; Hyun Chul CHO ; Choon Myung KOH ; Joo Young PARK
Journal of the Korean Society for Microbiology 2000;35(5):374-374
No Abstract Available.
Astrocytes*
;
Humans*
3.Regulation of TNF - alpha Gene Expression in Human Fetal Astrocytes.
Hye Myung RYU ; Joo Young PARK ; Sun Ju CHOI ; Hyun Sook PARK ; Choon Myung KOH
Journal of Bacteriology and Virology 2001;31(3):291-297
Tumor necrosis factor-n (TNF - alpha) involved in the pathogenesis of multiple sclerosis and contribute to the degeneration of oligodendrocytes as well as neurons. TNF - alpha is produced by miocroglia and astrocytes, which also produce hormones and cytokines that influence its biological activity. Astrocytes, the major glial cells in the CNS, are capable of producing TNF - alpha at both the mRNA and protein levels in response to interleukine-1 (IL-1) or TNF - alpha. Two immunosuppressive cytokines, transforming growth factor - beta (TGF - beta) and IL-10, have been shown to influence glial cell function. TGF - beta can modulate the activity of glial cells by inhibiting interferon-gamma (IFN - gamma) induced expression of class II major histocompatibility complex (MHC) molecules on astrocytes and microglia. To explore the role of astrocytes in the production of TNF - alpha, astrocytes were pretreated with IL-10 or TGF - beta and then stimulated with IL-1p to determine their effects on TNF - alpha production. The secretion of TNF - alpha by human fetal astrocytes was markedly inhibited by TGF - beta at a low concentration. In contrast IL-10 had no effect on TNF - alpha mRNA level. These results show that TGF - beta may regulate the expression of TNF - alpha in activated human fetal astrocytes.
Astrocytes*
;
Cytokines
;
Gene Expression*
;
Humans*
;
Interferon-gamma
;
Interleukin-10
;
Major Histocompatibility Complex
;
Microglia
;
Multiple Sclerosis
;
Necrosis
;
Neuroglia
;
Neurons
;
Oligodendroglia
;
RNA, Messenger
;
Transforming Growth Factors
4.The Wolf-Hirschhorn Syndrome in Fetal Autopsy: A Case Report.
Sun Ju BYEON ; Jae Kyung MYUNG ; Sung Hye PARK
Korean Journal of Pathology 2011;45(Suppl 1):S15-S19
Wolf-Hirschhorn syndrome (WHS) is a malformation associated with a hemizygous deletion of the distal short arm of chromosome 4. Herein we report a fetal autopsy case of WHS. A male fetus was therapeutically aborted at 17(+0) weeks gestational age, due to complex anomaly and intrauterine growth retardation, which were found in prenatal ultrasonography. His birth weight was 65 g. Mild craniofacial dysmorphism, club feet, bilateral renal hypoplasia, edematous neck, and left diaphragmatic hernia of Bochdalek were found on gross examination. On GTG-banding, the fetus revealed 46,XY,add(4p) karyotype and the mother revealed 46,XX,t(4;18)(p16;q21.1), with normal karyotype of the father. Array comparative genomic hybridization performed on the autopsied lung tissue revealed loss of 4p16.2-->4pter and gain of 18q21.1-->18qter, suggesting 46,XY,der(4)t(4;18)(p16.2;q21.1)mat of fetal karyotype. This suggested deletion of 4p, compatible with WHS inherited from the mal-segregation of a maternal translocation t(4;18)(p16.2;21.1). Therefore, our fetus was both genotypically and phenotypically compatible with WHS.
Arm
;
Autopsy
;
Birth Weight
;
Chromosomes, Human, Pair 4
;
Comparative Genomic Hybridization
;
Fathers
;
Fetal Growth Retardation
;
Fetus
;
Foot
;
Gestational Age
;
Hernia, Diaphragmatic
;
Humans
;
Karyotype
;
Karyotyping
;
Lung
;
Male
;
Mothers
;
Neck
;
Ultrasonography, Prenatal
;
Wolf-Hirschhorn Syndrome
5.Approximate Entropy: Analysis of Fetal Heart Rate Variability in Normal and Growth Retarded Fetuses.
Jung Hye HWANG ; Moon Il PARK ; Myung Kul YUM
Korean Journal of Obstetrics and Gynecology 1997;40(1):92-99
OBJECTIVES: This study is aimed to quantify the complex dynamics of beat-to-beat fetal heart rate(FHR) fluctuations by using approximate entropy(ApEn) which is a recently developed mathematical formula quantifying regularity and also to determine the differences between normal fetuses and growth retarded fetuses. BACKGROUND: Recently, some measures of heart rate variability and nonlinear "complexity" of heart rate dynamics have been used as indicators fetal well-being. Approximate entropy is a new mathematical approach and formula to quantify regularity in data. It has been shown to provide new information in fetal heart rate analysis. Because growth retarded fetus accounts for a significant increase in perinatal morbidity and mortality, than normal fetus, we postulated that there existed important differences between normal fetuses and growth retarded fetuses. METHODS: We analyzed FHR tracings for 40 minutes, and approximately 5,000 points in normal fetuses(n=315) and growth retarded fetuses(n=76). The overall "complexity" of each FHR time series was quantified by its approximate entropy, measure of regularity derived from nonlinear dynamics, "chaos theory". RESULTS: Mean baseline FHR increased in growth retarded fetuses than normal fetuses. And the FHR ApEn significantly decreased in growth retarded fetuses(ApEn=0.623) compared to that of the normal fetuses(ApEn=0.868) throughout all gestational ages(p < 0.001). CONCLUSIONS: The ApEn of FHR decreased in growth retarded fetuses throughout all gestational ages. These findings indicated that decreased ApEn values of FHR are associated with sickness and the greater perinatal morbidity risks. Therefore ApEn quantifies subtle changes in FHR regularity and promises for new information in FHR analysis.
Entropy*
;
Female
;
Fetal Heart*
;
Fetus*
;
Gestational Age
;
Heart Rate
;
Heart Rate, Fetal*
;
Mortality
;
Nonlinear Dynamics
;
Pregnancy
6.Establishment of a Culture Method and Characterization for Human Fetal Astrocytes.
Joo Young PARK ; Hye Myung RYU ; Sun Ju CHOI ; Hyun Sook PARK ; Choon Myung KOH ; Sung Soo LEE
Journal of Bacteriology and Virology 2001;31(1):39-45
No abstract available.
Astrocytes*
;
Humans*
7.Characterization of Gene Expression Pattern in Human Astrocytes using DDRT - PCR Method.
Hye Myung RYU ; Sun Ju CHOI ; Hyun Chul CHO ; Sung Soo LEE ; Choon Myung KOH ; Joo Young PARK
Journal of Bacteriology and Virology 2001;31(1):47-54
No abstract available.
Astrocytes*
;
Gene Expression*
;
Humans*
;
Polymerase Chain Reaction*
8.Short Rib Syndrome Beemer-Langer Type with Polydactyly: A Case Report.
Jin Wan PARK ; Eul Jong HUR ; Won Ki LEE ; Na Hye MYUNG
Korean Journal of Perinatology 1997;8(1):65-69
A female fetus with short rib(polydactyly) syndrome, Beemer-Langer type was terminated at 28 week's gestation because of abnormalities visualized on sonography. We present the clinical, radiological and autopsy findings of this case with a brief review of the literatures.
Autopsy
;
Female
;
Fetus
;
Humans
;
Polydactyly*
;
Pregnancy
;
Ribs*
9.Effect of weight control on hepatic abnormalities in obese patients with fatty liver.
Hye Soon PARK ; Myung Wha KIM ; Eun Soo SHIN
Journal of Korean Medical Science 1995;10(6):414-421
This study was aimed at finding out whether weight reduction alone can improve liver function in obese patients with fatty liver. We did a longitudinal, clinical intervention study on weight reduction by behavior modification, diet and exercise. The study subjects were 25 patients referred to an obesity clinic in whom obesity is the sole factor causing abnormal liver function and fatty liver. Patients were weighed about one year later. We compared the degree of improvement in hepatic function between Group I that showed weight reduction and Group II that showed no-weight reduction. Group I (13) showed dramatic improvement in aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels, nearly all down to within normal levels. AST showed statistically significant improvement from 74 +/- 36 IU/l to 25 +/- 7 IU/l. ALT also showed statistically significant improvement from 109 +/- 67 IU/l to 30 +/- 14 IU/l. Group II (12) showed higher AST and ALT levels on follow-up visit than initial visit. AST showed statistically significant elevation from 43 +/- 11 IU/l to 59 +/- 23 IU/l. ALT also showed statistically significant elevation from 64 +/- 21 IU/l to 97 +/- 33 IU/l. If we can rule the other causes of hepatic abnormalities in obese patients with fatty liver, we suggest these patients would benefit by weight reduction.
Adolescent
;
Adult
;
Alanine Transaminase/metabolism
;
Aspartate Aminotransferases/metabolism
;
Body Weight/physiology
;
Comparative Study
;
*Diet, Reducing
;
Fatty Liver/complications/*diet therapy/physiopathology
;
Female
;
Human
;
Liver/enzymology/*physiopathology
;
Longitudinal Studies
;
Male
;
Middle Age
;
Obesity/complications/*diet therapy/physiopathology
10.A Case of Turner's Syndrome with Hydronephrosis.
Hye Ryun KANG ; Hee Bong PARK ; Myung Jin KIM ; Mee Na LEE
Journal of the Korean Pediatric Society 1987;30(1):94-98
No abstract available.
Hydronephrosis*
;
Turner Syndrome*