1.The nitric oxide synthase activity and expression in human placenta from preeclamptic pregnancies.
Hye Sung WON ; Pil Ryang LEE ; In Sik LEE ; Ahm KIM ; Joo Hyun NAM ; Jung Eun MOK
Korean Journal of Obstetrics and Gynecology 2000;43(7):1228-1235
OBJECTIVE: The changes of the production of nitric oxide in preeclampsia are still controversial. To determine the changes of nitric oxide production in preeclamptic pregnancies, NOS activity and eNOS and iNOS expression in preeclamptic placentae were compared with those in normal placentae, and to determine the changes of nitirc oxide production according to the sites of placenta, NOS activity and eNOS expression in preeclamptic placentae were also compared with those in normal placentae. METHODS: Human placentae were obtained from 15 normal and 15 preeclamptic pregnant women at the time of cesarean section. NOS activity was assessed by measuring the conversion of [3H]-arginine into [3H]-citrulline. The eNOS and iNOS expression were assessed by using western blot analysis. Data were analyzed by Student t-test and paired t-test where appropriate. RESULTS: The NOS activity(judged by measurement of [3H]-citrulline production) was significantly increased in preeclamptic placentae compared to normal(P<0.05). In normal and preeclamptic pregnant placentae, the NOS activity in main stem villi was increased compared to that in terminal villi. However, the difference of NOS activity between main stem villi and terminal villi was not significant(P>0.05). Quantification of the autoradiographic images demonstrated that the integrated optical density of the immunoreactive bands of eNOS were significantly lower in preeclamptic placentae compared to normal(p<0.05). Conversely, the integrated optical densities of the bands of iNOS were significantly higher in preeclamptic placentae compared to normal(p<0.05). CONCLUSIONS: Although the eNOS expression in preeclamptic placentae was lower than that in normal placentae, the NOS activity was significantly higher in preeclamptic placentae than that in normal in this study. These are result from increased production of iNOS in the compensatory mechanisms for the decreased nitric oxide production in pre-eclamptic placentae.
Blotting, Western
;
Cesarean Section
;
Female
;
Humans*
;
Nitric Oxide Synthase*
;
Nitric Oxide*
;
Placenta*
;
Pre-Eclampsia
;
Pregnancy*
;
Pregnant Women
2.A retrospective study on the trauma patients with who undergone operation at Dongguk university Pohang and Kyungju hospital in 1992.
Yong Chul KIM ; Bok Tae DO ; Sung Soon KIM ; Soo Young KIM ; Tae Hwan KIM ; Sung Ryang JUNG
The Korean Journal of Critical Care Medicine 1993;8(1):33-45
No abstract available.
Gyeongsangbuk-do*
;
Humans
;
Retrospective Studies*
3.A Case of Bilateral Renal Agenesis Diagnosed by Prenatal Ultrasonography.
Jung Eun MOK ; Chun HWANGBO ; Hye Sung WON ; Hye Kyung YOO ; Pyl Ryang LEE ; In Sik LEE ; Ahm KIM
Korean Journal of Obstetrics and Gynecology 1999;42(1):167-170
Fetal bilateral renal agenesis is a lethal congenital anomaly. An early and reliable prenatal diagnosis is extremely important as it may offer options for pregnancy termination as early as possible. The criteria for the ultrasonographic diagnosis of bilateral renal agenesis are severe oligohydramnios, nonvisualization of the bladder, and the empty renal fossae. However, severe oligohydramnios makes it difficult to diagnose the disease because of poor sonographic resolution. We present a case of fetal bilateral renal agenesis diagnosed by ultrasonography after amnioinfusion at 19 weeks gestation.
Diagnosis
;
Female
;
Oligohydramnios
;
Pregnancy
;
Prenatal Diagnosis
;
Ultrasonography
;
Ultrasonography, Prenatal*
;
Urinary Bladder
4.Changes in nitric oxide production in preeclampsia.
In Sik LEE ; Hye Kyung YOO ; Bok Kyung JUNG ; Hye Sung WON ; Pil Ryang LEE ; Ahm KIM ; Joo Hyun NAM
Korean Journal of Obstetrics and Gynecology 1999;42(8):1683-1689
OBJECTIVE: To determine the changes of nitric oxide production in preeclampsia, the concentration of nitric oxide metabolite, nitrite, was measured in umbilical vein after perfusing plasma from normal pregnant women and preeclamptic pregnant women. MATERIAL AND METHOD: 15 normal and 15 preeclamptic umbilical cords were obtained at the time of cesarean section. Two pieces of umbilical cord in equal length(20 cm in length) were prepared from each umbilical cord. Two pieces of umbilical cord were connected in parallel in a perfusion chamber. One piece of umbilical cord was perfused sequentially for 20-minutes' interval with the perfusates in the order of cord buffer, cord buffer including 15% normal pregnant serum, 15% normal pregnant serum with histamine(10-5mol/L), 15% normal pregnant serum with calcium ionophore A23187(5 mol/L) and the other one was perfused exactly same way using 15% preeclamptic serum instead of 15% normal pregnant serum. All the perfusates used were gassed with 95% O2 and 5% CO2 and warmed to 37degree C. Perfusates were collected in eppendorf tube and freezed at -70degree C until assayed. NO was measured by means of Greiss reaction. one way ANOVA and paired t-test were used where appropriate and p-value < 0.05 was considered significant. RESULTS: NO production in normal umbilical cords was not different regardless of perfusate. Although adding histamine and calcium ionophore, the NO production was slightly increased but statistically not significant in both groups. NO production in preeclamtic umbilical cords was significantly increased with 15% preclamptic serum(15% normal serum vs. 15% preeclamptic serum; 0.060+/-0.016microgram/ml/min vs 0.075+/-0.014microgram/ml/min, p<0.05). CONCLUSION: The preeclamptic sera may not affect the production of NO in the human umbilical vein endothelial cells. The biologic significance of increased NO production in preeclamptic umbilical cord with perfusing preeclamptic serum is unknown, but it might be compensation for the vasoconstriction of preeclampsia.
Calcium
;
Cesarean Section
;
Compensation and Redress
;
Female
;
Histamine
;
Human Umbilical Vein Endothelial Cells
;
Humans
;
Nitric Oxide*
;
Perfusion
;
Plasma
;
Pre-Eclampsia*
;
Pregnancy
;
Pregnant Women
;
Umbilical Cord
;
Umbilical Veins
;
Vasoconstriction
5.A Case of Werniche's Encephalopathy in Hyperemesis Grevidarum.
Hye Sung WON ; Pyl Ryang LEE ; In Sik LEE ; Ahm KIM ; Jung Eun MOK ; Hye Jin SHIN ; Hye Kyung YOO
Korean Journal of Perinatology 1998;9(1):31-34
Werniche's encephalopathy is clinically characterized by the acute onset of global confusion, ataxia, gaze paresis, and nystagmus. It result from a deficiency in thiamine, an essential coenzyme in intermediate carbohydrate metabolism. The prompt use of thiamine prevents progression of the disease and reverses those lesions that have not yet progressed to the point of fixed structural change. We experienced a case of Wemiches encephalopathy associated with hyperemesis gravidarum, which happens to the patient who are injected only dextrose without thiamine. Therefore, we emphasize the need of thiamine replacement in hyperemesis gravidarum.
Ataxia
;
Carbohydrate Metabolism
;
Female
;
Glucose
;
Humans
;
Hyperemesis Gravidarum
;
Paresis
;
Pregnancy
;
Thiamine
6.Clinical application of copper vapor laser.
Jae Sung HA ; Jong Ryang LEE ; Jung Oh SUH ; Jun Yong PARK ; Sung Kyun JUNG ; Kun Soo CHUN ; Dong Hoon KANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(2):356-365
No abstract available.
Copper*
;
Lasers, Gas*
7.Clinical Significance of National Institutes of Health Classification in Patients With Chronic Prostatitis/Chronic Pelvic Pain Syndrome.
Yun Hsien SUNG ; Jae Hung JUNG ; Seung Hoon RYANG ; Sung Jin KIM ; Kwang Jin KIM
Korean Journal of Urology 2014;55(4):276-280
PURPOSE: We determined the effects of alpha-blockers and quinolone in patients with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) classified by National Institute of Health (NIH) consensus group. MATERIALS AND METHODS: Data from a total of 111 patients who were diagnosed with CP/CPPS between June 2010 and June 2012 were analyzed retrospectively. The patients were classified into group 1 (category IIIA, n=40) and group 2 (category IIIB, n=71). Treatment using alfuzosin and levofloxacin was given to both groups for 6 weeks. International Prostate Symptom Score (IPSS) and NIH Chronic Prostatitis Symptom Index were measured before and after therapy. RESULTS: Group 1 had a significant decrease in total IPSS score, CPSI pain score, CPSI quality of life (QoL) score, and total CPSI score (p=0.043, p=0.006, p=0.015, and p=0.006, respectively). Group 2 had a significant decrease in IPSS voiding symptom score, IPSS storage symptom score, total IPSS, CPSI pain score, CPSI voiding score, CPSI QoL score, and total CPSI score (p=0.002, p=0.004, p=0.001, p=0.001, p=0.006, p=0.001, and p=0.001, respectively). The CPSI score was reduced by 6 points or more in 50.0% of patients (n=18) in group 1 and in 51.6% of patients (n=32) in group 2. However, there was no statistically significant difference between the changes in IPSS and CPSI scores across the 2 groups. CONCLUSIONS: Although combination treatment reduced the CPSI score in both groups, there was no significant difference between the groups after combination treatment. We suggest that factors other than inflammation also contribute to symptoms associated with CP/CPPS.
Anti-Bacterial Agents
;
Classification*
;
Consensus
;
Humans
;
Inflammation
;
Leukocytes
;
Levofloxacin
;
National Institutes of Health (U.S.)*
;
Pelvic Pain*
;
Prostate
;
Prostatitis
;
Quality of Life
;
Retrospective Studies
8.Antenatal Sonographic Diagnosis of the Amniotic Band Syndrome.
Nak Woon JUNG ; Hye Sung WON ; Hyung Sik CHU ; Sang Soo LEE ; Pyl Ryang LEE ; In Sik LEE ; Ahm KIM ; Jung Eun MOK
Korean Journal of Perinatology 1997;8(3):285-290
The amniotic band syndrome is a collection of fetal malformations caused by fibrous bands that appear to entangle or entrap various parts of fetus in utero, leading to deformation, malformation, or disruption involving the limbs, craniofacial region and trunk. The incidence of this syndrome is relatively rare. This syndrome often shows irreversible serious outcome. So, early diagnosis of amniotic band syndrome is important. Ultrasonography enables us to detect the amniotic band syndrome prenatally. In the second and third trimester of the pregnancy, it is relatively easy to detect major anomalies of amniotic band syndrome by its characteristic features, including amputation and/or constriction of the extremities, facial clefts, asymmetric encephaloceles and gastroschisis. Five cases of amniotic band syndrome which have been diagnosed prenatally by ultrasonography are discussed. The diagnosis was based on sonographic visualization of amniotic band and associated fetal deformation, malformations or disruption known to characterize the amniotic band syndrome.
Amniotic Band Syndrome*
;
Amputation
;
Constriction
;
Diagnosis*
;
Early Diagnosis
;
Encephalocele
;
Extremities
;
Female
;
Fetus
;
Gastroschisis
;
Humans
;
Incidence
;
Infant, Newborn
;
Pregnancy
;
Pregnancy Trimester, Third
;
Ultrasonography*
9.Clinical outcome of prenatally diagnosed isolated fetal ventriculomegaly: retrospective analysis of 175 cases.
Eui JUNG ; Jee Young OH ; Sun Kwon KIM ; Jae Yoon SHIM ; Hye Sung WON ; Pil Ryang LEE ; Ahm KIM
Korean Journal of Obstetrics and Gynecology 2006;49(6):1230-1239
OBJECTIVE: The objective of this study is to evaluate the natural course, postnatal outcome, and association between the degree of ventriculomegaly and neurodevelopmental delay in isolated fetal ventriculomegaly. METHODS: We reviewed the medical records of pregnant women diagnosed with isolated fetal ventriculomegaly from October 1996 to June 2004. We defined mild ventriculomegaly as atrial width of 10-14.9 mm and overt ventriculomegaly as 15 mm or more. Neonatal brain ultrasonography was performed in all cases and brain MRI was performed as necessary. Neurodevelopmental outcome was evaluated by medical records and telephone interviews. We analyzed the final outcome of isolated fetal ventriculomegaly according to the ventricular width. RESULTS: There were 175 cases of isolated fetal ventriculomegaly, with a large proportion of male fetuses (68.6%), and one case of trisomy 21. While the group with prenatally resolved ventriculomegaly (n=119) had a smaller ventricular width and more unilaterality, there was no resolution in cases with a ventricular width of 15 mm or more. One hundred and thirty one fetuses with an initial ventricular width of 10 to 11.9 mm had no developmental delay, however, there were 2 cases of cerebral palsy and 2 cases of genetic disorder. Seventeen fetuses had ventricular dilatation of 15 mm or more, with 6 corresponding cases of developmental delay and one case of cerebral palsy. CONCLUSION: Among isolated fetal ventriculomegaly, mild, unilateral or stable ventriculomegaly seems to have a favorable neurological outcome, especially those cases with ventricular width of less than 12 mm. However, management of the condition and counseling of parents are still crucial, because it can be a marker of genetic disorder or brain developmental delay.
Brain
;
Cerebral Palsy
;
Counseling
;
Dilatation
;
Down Syndrome
;
Female
;
Fetus
;
Humans
;
Interviews as Topic
;
Magnetic Resonance Imaging
;
Male
;
Medical Records
;
Parents
;
Pregnant Women
;
Retrospective Studies*
;
Ultrasonography
10.Preferential Suppression of the On Pathway by r-Aminobutyric Acid in the Catfish Retina.
Sun Ryang BAI ; Chang Sub JUNG ; Sung Jong LEE ; So Yeon LEE ; Sun Ho BAI
Journal of the Korean Ophthalmological Society 1997;38(1):65-74
The effects of r-aminobutyric acid(GABA) agonsits and antagonists were explored by the intracellular recording method to discern the preferential suppression of the ON component by GABA on the ON-OFF transient cell in the catfish (Ictalurus punctatus) retina. Experiments were performed in the superfused eyecup preparation. The animals were decapitated and pited before the eye, and the surrounding tissue was removed from the skull. The retina was exposed by excising the cornea, iris, and vitreous. This preparation rested on a wad of Ringer`s soaked cotton in contact with an Ag/Agcl reference electrode. Solutions were delivered through a manifold system that was connected to a pipette located near the absorbent wick. Electro-physiological recordings were made using standard intracellular electrodes filled with 2 M potassium acetate. The electrical signal was recorded with an amplifierand a penwriter, viewed on an oscilloscope, and stored on a data recorder. The light sources were red light-emitting-diode (LED) and the stimuli were full field illumination covering the cntire retina. GABA preferentially reduced ON light responses in ON-OFF transient cell. and GABA hyperpolarized bipolar cells, but the effects on ON bipolar cells were more sensitive than OFF bipolar cells. CACA and TACA, GABAc receptor agonist, did not act on bipolar cells. CACA and TACA, GABAc receptor agonists, hyperpolarized bipolar cells but the sensitivity deferences between ON and OFF bipolar cell were not observed. These results suggest that the preferential suppression of the ON component of the ON-OFF transient cell by GABA was resulted from the presynaptic mechanism that reduced bipolar cell input.
Animals
;
Catfishes*
;
Cornea
;
Electrodes
;
gamma-Aminobutyric Acid
;
Iris
;
Lighting
;
Potassium Acetate
;
Retina*
;
Skull