1.Effects of Alginate Culture on Viability, Proliferation, and Phenotype of Canine Articular Chondrocytes.
Hyeong Geun PARK ; Jeong Im WOO ; So Ra PARK ; Han Jo LIM ; Byoung Hyun MIN
Journal of Korean Orthopaedic Research Society 2001;4(1):24-31
No Abstract Available.
Chondrocytes*
;
Phenotype*
2.Noise Level and Frequency Experienced by Premature Infants Receiving Incubator Care in the Neonatal Intensive Care Unit
Child Health Nursing Research 2020;26(2):296-308
Purpose:
The purpose of this study was to identify the noise level and frequency experienced by premature infants receiving incubator care in the neonatal intensive care unit (NICU).
Methods:
The participants were 20 premature infants receiving incubator care in the NICU of a university hospital in Daejeon Metropolitan city. The noise level was measured using a professional sound-level meter (ET-958, FLUS, Shenzhen, China) based on a noise classification table developed by the author. The data were analyzed with descriptive statistics, the t-test, analysis of variance, and Pearson correlation coefficients using SPSS for Windows version 22.0.
Results:
The average noise level experienced by premature infants receiving incubator care in the NICU was 51.25 dB (range: 45.0~81.7 dB). The frequency of noises was highest for factors related to nursing activities (40.3%), followed by human factors (29.1%), machine alarm sounds (20.1%), incubator operation (6.6%), and internal environmental factors (3.9%).
Conclusion
According to the above results, the noise level experienced by premature infants receiving incubator care in the NICU exceeded the recommendations of the American Academy of Pediatrics. Therefore, it is necessary to develop an interventional program to reduce noise in the NICU, and to conduct follow-up studies to verify its effectiveness.
3.A case of Meigs' syndrome.
So Hyun PARK ; No Hyun PARK ; Young Ran HAN ; Moon Whan IM ; Jong Hyeok KIM ; Jin Yong LEE
Korean Journal of Obstetrics and Gynecology 1991;34(2):298-303
No abstract available.
Female
;
Meigs Syndrome*
4.A case of Meigs' syndrome.
So Hyun PARK ; No Hyun PARK ; Young Ran HAN ; Moon Whan IM ; Jong Hyeok KIM ; Jin Yong LEE
Korean Journal of Obstetrics and Gynecology 1991;34(2):298-303
No abstract available.
Female
;
Meigs Syndrome*
5.The effect of proliferation and phenotype by ascorbic acid on human articular chondrocytes culture.
Hyun Jung LEE ; Jung Im WOO ; So Ra PARK ; Byoung Hyun MIN
Journal of Korean Orthopaedic Research Society 2001;4(2):150-158
For the successful autologous chondrocyte transplantation, it is important to maximize the number of chondrocyte and maintain its original morphology and phenotypic change of the chondrocyte in the culture. In this study, the effect of ascorbic acid and human serum which are known to promote cell proliferation and collagen synthesis was observed in the culture of human chondrocyte. Media were prepared with the conditions of fetal bovine Serum(FBS) treated group, FBS +ascorbic acid(asc) treated group, human serum(HuS) treated group, and HuS+asc treated group, respectively. Proliferation was measured by cell counting using trypan-blue staining method. We used to determine the degree of expression of aggrecan of mRNA and type II collagen using RT-PCR. Type II collagen in cultured cell and medium was measured by western blot analysis and proteoglycan synthesis by DMB (Dimethylene Blue) assay. Under all conditions, aggrecan on mRNA level was well expressed. On the other hand, expression of type II collagen was reduced on HuS treated group than FBS treated group, and ascorbic acid treated groups showed decreased expression of type II collagen. Western blot analysis showed increased expression of type II collagen on HuS treated group than FBS treated group, and ascorbic acid treated groups showed increased level. HuS+asc treated group showed the most significant effect than the other groups. The increased effects of ascorbic acid on the proliferation and collagen synthesis were more prominent in the culture with human serum. It might be due to the synergic effect with some growth factors which were present in human serum.
Aggrecans
;
Ascorbic Acid*
;
Blotting, Western
;
Cell Count
;
Cell Proliferation
;
Cells, Cultured
;
Chondrocytes*
;
Collagen
;
Collagen Type II
;
Hand
;
Humans*
;
Intercellular Signaling Peptides and Proteins
;
Phenotype*
;
Proteoglycans
;
RNA, Messenger
6.A case of endocervical stromal sarcoma.
Moon Hwan IM ; Young Cheol YU ; Young Ran HAN ; So Hyun PARK ; Cheong Rae ROH ; Soon Beom KANG
Korean Journal of Obstetrics and Gynecology 1991;34(3):444-449
No abstract available.
Sarcoma*
7.Nonsurgical treatment of ectopic pregnancy:Local methotrexate injection.
Kae Hyun NAM ; Jeong Jae LEE ; So Young JIN ; Im Soon LEE ; Kwon Hae LEE ; Tai Ho CHO
Korean Journal of Obstetrics and Gynecology 1993;36(5):625-633
No abstract available.
Methotrexate*
8.An anesthetic experience in severe preeclampsia patient suspected HELLP syndrome with an intraperitoneal hemorrhage caused by a rapidly progressed liver rupture: A case report.
Hyun Joo HEO ; Hyungtae KIM ; Ji Hye LEE ; So Mang IM ; Ok Hyun KIM ; Han Gyeol LEE
Anesthesia and Pain Medicine 2018;13(4):401-404
The diagnosis of HELLP syndrome associated with preeclampsia-eclampsia during pregnancy uses three test results, including hemolysis, elevated liver enzyme, low platelets and their related clinical symptoms. Liver rupture is a life-threatening and rare complication related to HELLP syndrome. Early diagnosis and rapid treatment are very important for protecting the life of the patient and the fetus. We are reporting an anesthetic experience a sudden-onset suspicious HELLP syndrome with an intraperitoneal hemorrhage caused by a rapidly progressed liver rupture in a severe preeclampsia patient without any abnormalities during gestation.
Diagnosis
;
Early Diagnosis
;
Eclampsia
;
Female
;
Fetus
;
HELLP Syndrome*
;
Hemolysis
;
Hemorrhage*
;
Humans
;
Liver*
;
Pre-Eclampsia*
;
Pregnancy
;
Rupture*
9.Arachnoid Cyst in Cavernous Sinus: Case Report.
Hyoung Gun LIM ; Won Jong YOO ; So Lyung JUNG ; Hae Giu LEE ; Hyun Wook LIM ; Soo Ah IM
Journal of the Korean Radiological Society 2002;47(6):561-563
Arachnoid cyst of the cavernous sinus is very rare. When present, its anatomic location frequently gives rise to cranial nerve palsy. We report a case of arachnoid cyst of the cavernous sinus in a 38-year-old man with impaired eyeball movement and diplopia.
Adult
;
Arachnoid Cysts
;
Arachnoid*
;
Cavernous Sinus*
;
Cranial Nerve Diseases
;
Diplopia
;
Humans
10.Study of Hydroxyurea Induced Caspase Activities in Chronic Myelogenous Leukemic Cell Line, K562 cells.
Young Jin LEE ; Rae Kil PARK ; Hong Seob SO ; Ji Sun PARK ; Ji Hyun CHO ; Sam Im CHOI
Korean Journal of Clinical Pathology 2000;20(5):435-441
BACKGROUND: Chronic myelogenous leukemia is a chronic myeloproliferative disorder characterized by leukocytosis with myeloid elements at all stages of differentiation, t(9;22)(q34;q11) and bcr/abl rearrangement. We studied hydroxyurea induced apoptotic changes such as externalization of phosphatidylserine, caspase activities on human chronic myelogenous leukemic cell line, K562 cells. METHODS: K562 cells were grown in RPMI 1640 supplemented with 10% fetal bovine serum and treated hydroxyurea. Viability was examined by MTT assay. Apoptosis were examined by annexin V stain, caspase (such as caspase-, caspase-, caspase-, caspase-, and caspase-) activities, and DNA fragmentation. RESULTS: The viability of K562 cells were markedly decreased in a dose dependent manner of hydroxyurea. Phosphatidylserine externalization was detected by annexin V stain after 3 hours in hydroxyurea treated K562 cells and the value of lactate dehydrogenase was not significantly changed in their culture media. The upstream effector of caspase- was slightly increased and had influenced on caspase-. And downstream acting caspase protease of caspase- was markedly increased in a time dependent manner at hydroxyurea treated K562 cells. In addition, however the activities of caspase- and caspase- were not increased. We also found DNA fragmentation at hydroxyurea treated K562 cells between 48 hours and 72 hours on agarose gel electrophoresis. CONCLUSIONS: Hydroxyurea induces apoptotic change in K562 cells via externalization of phosphatidylserine, activations of caspase-, caspase-, caspase- proteases, and DNA fragmentation.
Annexin A5
;
Apoptosis
;
Cell Line*
;
Culture Media
;
DNA Fragmentation
;
Electrophoresis, Agar Gel
;
Humans
;
Hydroxyurea*
;
K562 Cells*
;
L-Lactate Dehydrogenase
;
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
;
Leukocytosis
;
Myeloproliferative Disorders
;
Peptide Hydrolases