1.The Studies on the Development of Human Blastocyst Embryos in IVF-ET Program. II. The Development of Human Blastocyst Embryos by co-culture with Cumulus Cells.
Suk Won LEE ; San Hyun YOON ; Hye Gyun YOON ; Hyon Jin CHO ; Yong Soo HEO ; Hye Jin YOON ; Se Pill PARK ; Won Don LEE ; Jin Ho LIM
Korean Journal of Fertility and Sterility 1998;25(1):35-42
This study was carried out to investigate the development rates of human embryos co-cultured with cumulus cells to each blastocyst stage. Human zygotes were co-cultured on cumulus cell monolayer in YS medium supplemented with 20% hFF. On day 2, if patient had four or more 'good' embryos(regular blastomeres without fragmentation), embryos were further cultured for 72hrs. Blastocysts on day 5 were classified into early blastocyst (ErB), early expanding blastocyst (EEB), middle expanding Blastocyst (MEB), and expanded blastocyst (EdB) on the basis of their morphological aspects of trophectoderm cells and blastocoele. Subsequently, maximum 3 of best blastocysts were transferred in 486 cycles. The results in this study were as follows: Patients who had four or more 'good' embryos on day 2 were 498 persons, but patients whose embryos could not be transferred due to failure in development to the blastocyst stage on day 5 were 12 persons (2.4%). The development rate of embryos to the blastocyst stage was 58.2% (2,885/4,957) on day 5, and the rates that developed to the ErB, EEB, MEB, and EdB stage were 15.0% (743/4,957), 14.9% (739/4,957), 14.4% (714/4,957), and 13.9% (689/4,957), respectively. Total 1366 blastocysts were transferred in 486 cycles (mean number=2.81). The implantation rate and the ongoing implantation rate obtained by observing the number of G-sac and FHB were 29.9% (409/1,366) and 22.5% (308/1,366), respectively. The clinical pregnancy rate was 51.2% (249/486), and the ongoing pregnancy rate was 39.1% (190/486). Among women showing ongoing pregnancy, women with singleton were 50% (95/190), women with twin were 37.9% (72/190), and women with triplet were 12.1% (23/190). Although triplet pregnancy rate in this study was high such as 12.1%, because many blastocysts with high viability were produced in our co-culture system using cumulus cells on day 5, we really believe that a multiple pregnancy except twin should not occur by selecting good embryos for maximum two blastocyst transfer. These results demonstrate that autologous cumulus cells may be used for the production of blastocysts with high developmental competence, and the use of autologous cumulus cells to be collected easily, and to be treated conveniently at OPU must be an effective means for obtaining high implantation and pregnancy rate.
Blastocyst*
;
Blastomeres
;
Coculture Techniques*
;
Cumulus Cells*
;
Embryo Transfer
;
Embryonic Structures*
;
Female
;
Humans*
;
Mental Competency
;
Pregnancy
;
Pregnancy Rate
;
Pregnancy, Multiple
;
Pregnancy, Triplet
;
Triplets
;
Zygote
2.Comparison of long-term results of hancock and carpentier-edwards bioprosthetic valves.
Joung Teak KIM ; Meyun Shick KANG ; Bum Koo CHO ; Sung Nok HONG ; Pill Whoon HONG ; Doo Yun LEE ; Yong Han YOON
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(1):24-31
No abstract available.
3.Percutaneous drainage of splenic abscess in typhoid fever: a case report.
Pill Jin SHIN ; Hyuk CHOI ; Chong Woo BAE ; Yong Mook CHOI ; Yub YOON
Journal of Korean Medical Science 1995;10(1):44-47
Salmonella typhi splenic abscesses are a very rare complication of typhoid fever. Splenectomy is the standard surgical treatment for these lesions. But these days, with improvements in imaging techniques, percutaneous drainage of splenic abscesses has been demonstrated to be one of the alternative treatment in selected cases. We report the case of a 7 year-old male, who presented with Salmonella typhi in blood and urine cultures, and a 1: 320 in O titer of Widal test. Ultrasound and computed tomography showed a single splenic abscess, 3 cm in diameter. He was treated with antibiotics, but the symptoms were not relieved. Thus we performed the percutaneous drainage of the splenic abscess under ultrasound guidance. A culture of the aspirated material was positive for Salmonella typhi, and the boy's condition improved. We think that percutaneous drainage of a single lesion was an excellent alternative to surgery, particularly because our patient was young and spleen conservation was desirable.
Abscess/*therapy
;
Case Report
;
Child
;
Drainage
;
Human
;
Male
;
Splenic Diseases
;
Typhoid Fever/*complications
4.Tussilagone suppressed the production and gene expression of MUC5AC mucin via regulating nuclear factor-kappa B signaling pathway in airway epithelial cells.
Byung Soo CHOI ; Yu Jin KIM ; Yong Pill YOON ; Hyun Jae LEE ; Choong Jae LEE
The Korean Journal of Physiology and Pharmacology 2018;22(6):671-677
In the present study, we investigated whether tussilagone, a natural product derived from Tussilago farfara, significantly affects the production and gene expression of airway MUC5AC mucin. Confluent NCI-H292 cells were pretreated with tussilagone for 30 min and then stimulated with EGF (epidermal growth factor) or PMA (phorbol 12-myristate 13-acetate) for 24 h or the indicated periods. The MUC5AC mucin gene expression was measured by RT-PCR. Production of MUC5AC mucin protein was measured by ELISA. To elucidate the action mechanism of tussilagone, effect of tussilagone on PMA-induced NF-κB signaling pathway was investigated by western blot analysis. Tussilagone significantly inhibited the production of MUC5AC mucin protein and down-regulated the expression of MUC5AC mucin gene, induced by EGF or PMA. Tussilagone inhibited PMA-induced activation (phosphorylation) of inhibitory kappa B kinase (IKK), and thus phosphorylation and degradation of inhibitory kappa Ba (IκBα). Tussilagone inhibited PMA-induced phosphorylation and nuclear translocation of nuclear factor kappa B (NF-κB) p65. This, in turn, led to the down-regulation of MUC5AC protein production in NCI-H292 cells. These results suggest that tussilagone can regulate the production and gene expression of mucin by acting on airway epithelial cells through regulation of NF-κB signaling pathway.
Blotting, Western
;
Down-Regulation
;
Enzyme-Linked Immunosorbent Assay
;
Epidermal Growth Factor
;
Epithelial Cells*
;
Epithelium
;
Gene Expression*
;
Mucins*
;
NF-kappa B
;
Phosphorylation
;
Phosphotransferases
;
Tussilago
5.Surgical Treatment for Ossification of the Posterior Longitudinal Ligament of the Cervical Spine.
Young Soo KIM ; Dong Kyu CHIN ; Yong Eun CHO ; Byung Ho JIN ; Young Sul YOON ; Jeong Pill PARK ; Do Heum YOON
Journal of Korean Neurosurgical Society 1997;26(9):1237-1245
Ossification of the posterior longitudinal ligament(OPLL) is a degenerative disease of the spine, usually found in the cervical vertebrae. The etiology and pathogenesis have not been clarified, and its natural course is still unknown. The choice of operative approach, anterior vs. posterior, is still controversial. During the past 13 years, we have operated on 116 patients with myelopathy associated with cevical OPLL; 34 cases(29.3%) were of the continuous type, 30(25.9%) were segemental, 37(31.9%) were mixed, and 15(12.9%) were other type respectively. Forty-six patients underwent anterior cervical decompression by corpectomy, disectomy, and removal of the OPLL, and in these patients, segmental and other types of OPLL were more common and were found in 73% of these cases. On the other hand, 70 patients underwent posterior cervical decompression by cervical laminectomy or expansive laminoplasty; among them, the continuous and mixed type were more common and accounted for 84% of these cases. Surgical outcome was better in patients in whom the duration of pre-operative symptoms was shorter(p<0 .05). Age at surgery, trauma history and surgical approach did not, however, significantly affect the outcome. In conclusion, anterior cervical decompression was seen to give the best results, but was limited to patients with segmental or other types of OPLL, single or two levels of OPLL, and OPLL with herniated cervical disc. The posterior approach, on the other hand, was palliative, and gave better results in patients with continuous or mixed type of OPLL, OPLL of more than level three, and generally compromised patients.
Cervical Vertebrae
;
Decompression
;
Female
;
Hand
;
Humans
;
Laminectomy
;
Longitudinal Ligaments*
;
Ossification of Posterior Longitudinal Ligament
;
Spinal Cord Diseases
;
Spine*
6.Effects of Cynaroside, Cynarin and Linarin on Secretion, Production and Gene Expression of Airway MUC5AC Mucin in NCI-H292 Cells.
Yong Pill YOON ; Hyun Jae LEE ; Young Ho KIM ; Bui Thi Thuy LUYEN ; Jang Hee HONG ; Choong Jae LEE
Natural Product Sciences 2015;21(1):59-65
In this study, we investigated whether cynaroside, cynarin and linarin derived from Chrysanthemum indicum L. affect the secretion, production and gene expression of MUC5AC mucin in airway epithelial cells. Confluent NCI-H292 cells were pretreated with cynaroside, cynarin or linarin for 30 min and then stimulated with PMA (phorbol 12-myristate 13-acetate) for 24 h. The MUC5AC mucin gene expression, mucin protein production and secretion were measured by RT-PCR and ELISA, respectively. Effect of linarin on EGF (epidermal growth factor) - or TNF-alpha (tumor necrosis factor-alpha)-induced MUC5AC mucin gene expression and mucin protein production was also examined. The results were as follows: (1) Cynaroside and cynarin did not significantly affect PMA-induced MUC5AC mucin secretion from NCI-H292 cells. However, linarin decreased MUC5AC mucin secretion; (2) Cynaroside did not affect PMA-induced MUC5AC mucin production and gene expresion from NCI-H292 cells. However, cynarin and linarin inhibited the production and gene expression of MUC5AC mucin; (3) Linarin also inhibited the production and gene expression of MUC5AC mucin induced by EGF- or TNF-alpha from NCI-H292 cells. These results suggest that linarin can regulate the gene expression, production and secretion of mucin, by directly acting on airway epithelial cells.
Chrysanthemum
;
Enzyme-Linked Immunosorbent Assay
;
Epidermal Growth Factor
;
Epithelial Cells
;
Gene Expression*
;
Mucins*
;
Necrosis
;
Tumor Necrosis Factor-alpha
7.Effects of Lobetyolin, Lobetyol and Methyl linoleate on Secretion, Production and Gene Expression of MUC5AC Mucin from Airway Epithelial Cells.
Yong Pill YOON ; Jiho RYU ; Su Hyun PARK ; Hyun Jae LEE ; Seungho LEE ; Sang Kook LEE ; Ju Ock KIM ; Jang Hee HONG ; Jeong Ho SEOK ; Choong Jae LEE
Tuberculosis and Respiratory Diseases 2014;77(5):203-208
BACKGROUND: In this study, we investigated whether lobetyolin, lobetyol, and methyl linoleate derived from Codonopsis pilosula affect MUC5AC mucin secretion, production, and gene expression from airway epithelial cells. METHODS: Confluent NCI-H292 cells were pretreated with lobetyolin, lobetyol, or methyl linoleate for 30 minutes and then stimulated with phorbol 12-myristate 13-acetate (PMA) for 24 hours. The MUC5AC mucin gene expression, and mucin protein production and secretion were measured by reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. RESULTS: Lobetyolin, lobetyol, and methyl linoleate inhibited the gene expression of MUC5AC mucin induced by PMA; lobetyolin did not affect PMA-induced MUC5AC mucin production. However, lobetyol and methyl linoleate inhibited the production of MUC5AC mucin; lobetyolin and lobetyol did not significantly affect PMA-induced MUC5AC mucin secretion from NCI-H292 cells. However, methyl linoleate decreased the MUC5AC mucin secretion. CONCLUSION: These results suggest that among the three compounds, methyl linoleate can regulate gene expression, production, and secretion of MUC5AC mucin by directly acting on the airway epithelial cells.
Codonopsis
;
Enzyme-Linked Immunosorbent Assay
;
Epithelial Cells*
;
Gene Expression*
;
Linoleic Acid*
;
Mucins*
;
Polymerase Chain Reaction
;
Reverse Transcription
8.Effects of Lupenone, Lupeol, and Taraxerol Derived from Adenophora triphylla on the Gene Expression and Production of Airway MUC5AC Mucin.
Yong Pill YOON ; Hyun Jae LEE ; Dong Ung LEE ; Sang Kook LEE ; Jang Hee HONG ; Choong Jae LEE
Tuberculosis and Respiratory Diseases 2015;78(3):210-217
BACKGROUND: Adenophora triphylla var. japonica is empirically used for controlling airway inflammatory diseases in folk medicine. We evaluated the gene expression and production of mucin from airway epithelial cells in response to lupenone, lupeol and taraxerol derived from Adenophora triphylla var. japonica. METHODS: Confluent NCI-H292 cells were pretreated with lupenone, lupeol or taraxerol for 30 minutes and then stimulated with tumor necrosis factor alpha (TNF-alpha) for 24 hours. The MUC5AC mucin gene expression and production were measured by reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. Additionally, we examined whether lupenone, lupeol or taraxerol affects MUC5AC mucin production induced by epidermal growth factor (EGF) and phorbol 12-myristate 13-acetate (PMA), the other 2 stimulators of airway mucin production. RESULTS: Lupenone, lupeol, and taraxerol inhibited the gene expression and production of MUC5AC mucin induced by TNF-alpha from NCI-H292 cells, respectively. The 3 compounds inhibited the EGF or PMA-induced production of MUC5AC mucin in NCI-H292 cells. CONCLUSION: These results indicated that lupenone, lupeol and taraxerol derived from Adenophora triphylla var. japonica regulates the production and gene expression of mucin, by directly acting on airway epithelial cells. In addition, the results partly explain the mechanism of of Adenophora triphylla var. japonica as a traditional remedy for diverse inflammatory pulmonary diseases.
Campanulaceae*
;
Enzyme-Linked Immunosorbent Assay
;
Epidermal Growth Factor
;
Epithelial Cells
;
Gene Expression*
;
Lung Diseases
;
Medicine, Traditional
;
Methods
;
Mucins*
;
Tumor Necrosis Factor-alpha
9.A Case of Infectious Aortitis Causing Recurrent Acinetobacter baumannii Bacteremia Following Aortic Valve Replacement.
Yong Pill CHONG ; Seong Cheol KIM ; Eun Hee SONG ; Eun Yong JANG ; Eun Kyoung KIM ; Yoon Ji KIM ; Heungsup SUNG ; Mi Na KIM ; Sang Ho CHOI ; Jun Hee WOO ; Yang Soo KIM
Infection and Chemotherapy 2007;39(3):168-171
Infectious aortitis is an uncommon yet, life threatening disease. Early surgical treatment and prolonged antibiotic therapy is crucial to survival. Salmonella sp. and Staphylococcus aureus are the most common organisms isolated. There is no case report of infectious aortitis caused by Acinetobacter baumannii, which has recently emerged as a major cause of health care-associated infections. Here, we describe a 76-year-old male with infectious aortitis who experienced recurrent bacteremia due to A. baumannii in spite of adequate antimicrobial therapy after aortic valve replacement.
Acinetobacter baumannii*
;
Acinetobacter*
;
Aged
;
Aortic Valve*
;
Aortitis*
;
Bacteremia*
;
Humans
;
Male
;
Salmonella
;
Staphylococcus aureus
10.A Case of Infectious Aortitis Causing Recurrent Acinetobacter baumannii Bacteremia Following Aortic Valve Replacement.
Yong Pill CHONG ; Seong Cheol KIM ; Eun Hee SONG ; Eun Yong JANG ; Eun Kyoung KIM ; Yoon Ji KIM ; Heungsup SUNG ; Mi Na KIM ; Sang Ho CHOI ; Jun Hee WOO ; Yang Soo KIM
Infection and Chemotherapy 2007;39(3):168-171
Infectious aortitis is an uncommon yet, life threatening disease. Early surgical treatment and prolonged antibiotic therapy is crucial to survival. Salmonella sp. and Staphylococcus aureus are the most common organisms isolated. There is no case report of infectious aortitis caused by Acinetobacter baumannii, which has recently emerged as a major cause of health care-associated infections. Here, we describe a 76-year-old male with infectious aortitis who experienced recurrent bacteremia due to A. baumannii in spite of adequate antimicrobial therapy after aortic valve replacement.
Acinetobacter baumannii*
;
Acinetobacter*
;
Aged
;
Aortic Valve*
;
Aortitis*
;
Bacteremia*
;
Humans
;
Male
;
Salmonella
;
Staphylococcus aureus