1.Successful Birth after Transfer of Re-frozen Blastocysts Developed from Immature Oocytes Retrieved from a Woman with Polycystic Ovarian Syndrome.
Hyejin YOON ; Sanhyun YOON ; Soyoung LEE ; Haekwon KIM ; Wondon LEE ; Jinho LIM
Korean Journal of Fertility and Sterility 2005;32(1):65-70
No abstract available.
Blastocyst*
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Female
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Humans
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Oocytes*
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Parturition*
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Polycystic Ovary Syndrome*
2.Exploitation of Culture Medium for Mycobacterium tuberculosis.
Journal of Bacteriology and Virology 2011;41(4):237-244
The culture media for Mycobacterium tuberculosis (MTB) were contrived from both egg-based and agar based ingredients. In 1903, Dorset introduced the first egg-based medium. It was followed by the invention of Lowenstein-Jensen and Ogawa media that contain whole eggs as nutrient and malachite green to inhibit the growth of contaminants. These media have been used worldwide for their usefulness and inexpensiveness. However they have a fundamental disadvantage that the cultivation time for mycobacterial growth takes more than 4 weeks. In 1947, Dubos introduced the first agar medium and followed by the invention of the 7H10 by Middlebrook and Cohn. A powder base of these media contains agar, combination of seven salts, L-glutamic acid, pyridoxine, biotin, and malachite green. This requires the addition of the oleic acid, albumin, dextrose, and catalase (OADC) growth supplement. BACTEC MGIT960 has recently been introduced for rapid cultivation of MTB, which is fully automated liquid culture system with modified 7H9 broth. Agar-based medium developed by Middlebrook has a number of advantages over egg-based medium. One of them is transparency, which enables earlier detection of growing colonies. The major disadvantages of agar media are the high cost of OADC and the need for a CO2 incubator. In conclusion, there is a need for a new agar medium, which can be produced at a lower cost and earlier growth detection. In this review, we introduced the growth promoting factors which can be used as an alternative new growth supplement, cAMP and resuscitation-promoting factor (Rpf). These factors may abrogate a lag in adaption of the bacilli in culture media.
Agar
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Biotin
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Catalase
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Culture Media
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Eggs
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Glucose
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Glutamic Acid
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Incubators
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Inventions
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Mycobacterium
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Mycobacterium tuberculosis
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Oleic Acid
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Ovum
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Pyridoxine
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Rosaniline Dyes
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Salts
3.Effect of troglitazone on radiation sensitivity in cervix cancer cells.
Zhengzhe AN ; Xianguang LIU ; Hyejin SONG ; Chihwan CHOI ; Won Dong KIM ; Jae Ran YU ; Woo Yoon PARK
Radiation Oncology Journal 2012;30(2):78-87
PURPOSE: Troglitazone (TRO) is a peroxisome proliferator-activated receptor gamma (PPARgamma) agonist. TRO has antiproliferative activity on many kinds of cancer cells via G1 arrest. TRO also increases Cu2+/Zn2+-superoxide dismutase (CuZnSOD) and catalase. Cell cycle, and SOD and catalase may affect on radiation sensitivity. We investigated the effect of TRO on radiation sensitivity in cancer cells in vitro. MATERIALS AND METHODS: Three human cervix cancer cell lines (HeLa, Me180, and SiHa) were used. The protein expressions of SOD and catalase, and catalase activities were measured at 2-10 microM of TRO for 24 hours. Cell cycle was evaluated with flow cytometry. Reactive oxygen species (ROS) was measured using 2',7'-dichlorofluorescin diacetate. Cell survival by radiation was measured with clonogenic assay. RESULTS: By 5 microM TRO for 24 hours, the mRNA, protein expression and activity of catalase were increased in all three cell lines. G0-G1 phase cells were increased in HeLa and Me180 by 5 microM TRO for 24 hours, but those were not increased in SiHa. By pretreatment with 5 microM TRO radiation sensitivity was increased in HeLa and Me180, but it was decreased in SiHa. In Me180, with 2 microM TRO which increased catalase but not increased G0-G1 cells, radiosensitization was not observed. ROS produced by radiation was decreased with TRO. CONCLUSION: TRO increases radiation sensitivity through G0-G1 arrest or decreases radiation sensitivity through catalase-mediated ROS scavenging according to TRO dose or cell types. The change of radiation sensitivity by combined with TRO is not dependent on the PPARgamma expression level.
Catalase
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Cell Cycle
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Cell Line
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Cell Survival
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Cervix Uteri
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Chromans
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Female
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Flow Cytometry
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Fluoresceins
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Humans
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PPAR gamma
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Radiation Tolerance
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Reactive Oxygen Species
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RNA, Messenger
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Thiazolidinediones
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Uterine Cervical Neoplasms
4.Experiences of Nursing College Students attended to Delivery Practice at Midwifery Clinic.
Chaisoon PARK ; Hyejin KIM ; Soongyo YEOUM
Korean Journal of Women Health Nursing 2015;21(2):115-127
PURPOSE: The purpose of this study was to explore the experiences of nursing college students who attended delivery practices at midwifery clinic. METHODS: This was a qualitative study using focus groups. Data were collected by group interviews with a total of 12 students who observed natural childbirth at midwifery clinic. Data were analyzed through Colaizzi's method in which meaningful statements were extracted. RESULTS: The meanings of experiences were identified five theme clusters from thirteen themes and thirty-one sub-themes. The five theme clusters were 'ultimate process of natural childbirth', 'allowed birth', 'role recognition of the midwife', 'positively changed perception', and 'barriers'. CONCLUSION: This study showed that observation of delivery at midwifery clinic was helpful for nursing students in terms of positive impression about natural childbirth with maternal and baby being centered. Nursing students expressed value and concern about delivery at midwifery clinic. Further in-depth study of natural childbirth in terms of husband and family perspective is required. For quality improvement of maternity nursing care, natural childbirth process needs to be included in nursing care at hospitals as well as students' clinical practicum.
Female
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Focus Groups
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Humans
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Infant, Newborn
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Interviews as Topic
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Maternal-Child Nursing
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Midwifery*
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Natural Childbirth
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Nursing Care
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Nursing*
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Pregnancy
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Quality Improvement
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Spouses
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Students, Nursing
5.Factors associated with Behaviors that Reduce Exposure to Environmental Hormones among Nursing Students
Jungsuk LEE ; Hanju BEA ; HyeJin KIM
Korean Journal of Occupational Health Nursing 2019;28(4):285-292
PURPOSE: This study aimed to examine the factors associated with behavior that reduces exposure to environmental hormones among nursing students.METHODS: Data were collected from 160 nursing students in D and B cities, using self-report questionnaires. Data were analyzed using SPSS 22.0, and the analyses included descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient test, and stepwise multiple regression.RESULTS: Behavior that reduces exposure to environmental hormones differed significantly in terms of the participants' knowledge about environmental hormones. Behavior that reduces exposure to environmental hormones was negatively correlated with knowledge of environmental hormones, attitude towards pro-environmental behavior, and environmental self-efficacy; these factors were significant predictors of behavior that reduces exposure to environmental hormones, and accounted for 27.0% of the variance.CONCLUSION: Environmental self-efficacy was identified as the most significant factor affecting behavior that reduces exposure to environmental hormones in nursing students. Therefore, it is necessary to develop programs to improve pro-environmental behavior and environmental self-efficacy in nursing students.
Humans
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Nursing
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Students, Nursing
6.Factors associated with Behaviors that Reduce Exposure to Environmental Hormones among Nursing Students
Jungsuk LEE ; Hanju BEA ; HyeJin KIM
Korean Journal of Occupational Health Nursing 2019;28(4):285-292
PURPOSE:
This study aimed to examine the factors associated with behavior that reduces exposure to environmental hormones among nursing students.
METHODS:
Data were collected from 160 nursing students in D and B cities, using self-report questionnaires. Data were analyzed using SPSS 22.0, and the analyses included descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient test, and stepwise multiple regression.
RESULTS:
Behavior that reduces exposure to environmental hormones differed significantly in terms of the participants' knowledge about environmental hormones. Behavior that reduces exposure to environmental hormones was negatively correlated with knowledge of environmental hormones, attitude towards pro-environmental behavior, and environmental self-efficacy; these factors were significant predictors of behavior that reduces exposure to environmental hormones, and accounted for 27.0% of the variance.
CONCLUSION
Environmental self-efficacy was identified as the most significant factor affecting behavior that reduces exposure to environmental hormones in nursing students. Therefore, it is necessary to develop programs to improve pro-environmental behavior and environmental self-efficacy in nursing students.
7.Effective ketogenic diet in CACNA1A-related ‘epilepsy of infancy with migrating focal seizures’
Hyejin NA ; Sanghoon LEE ; Young Ok KIM
Journal of Genetic Medicine 2021;18(2):137-141
Genetic causes of developmental and epileptic encephalopathy (DEE) have been rapidly uncovered from mid-2010s. The mutations of gene enconding calcium channel, voltage-dependent, P/Q type, alpha 1A subunit (CACNA1A) are recently detected in DEE, which gene is already known well in familial hemiplegic migrine type 1 or episodic ataxia type 2. Ketogenic diet therapy (KDT) is effective in some DEE, which data is short in CACNA1A encephalopathy. A 3-month-old male with global developmental delay and multidrug-resistant focal seizures was diagnosed as epilepsy of infancy with migrating focal seizures (EIMFS). Brain magnetic resonance imaging and metabolic screening were all normal. Whole exome sequencing revealed two variants of CACNA1A : c.899A>C, and c.2808del that is from his mother. His seizures disappeared within 3 days whenever on KDT, which recurred without it. To our knowledge, this rare case of EIMFS with novel mutations of CACNA1A, is the first report in CACNA1A encephalopathy becoming seizure-free on KDT.
8.Factors affecting stigma communication towards people living with HIV/AIDS
Journal of Korean Academic Society of Nursing Education 2021;27(2):163-174
Purpose:
This study aims to identify factors influencing the stigma communication concerning HIV (Human Immunodeficiency Virus)/AIDS (Acquired Immune Deficiency Syndrome) patients between health and medical college students.
Methods:
In this descriptive study, the participants were 158 college students from a certain university. Data were collected from September 18 to September 30, 2018. Self-reported questionnaires were used to measure AIDS-related knowledge, homosexual awareness, fear of HIV/AIDS patients and stigma communication. The collected data were analyzed with descriptive statistics, an independent t-test, one way analysis of variance, Pearson’s correlation and a stepwise multiple regression analysis using the SPSS 23.0 program.
Results:
The factors influencing the stigma communication between health and medical college students were a fear of HIV/AIDS patients (β=.47, p<.001) and homosexual awareness (β=-.15, p=.040), which together explained 28.0% of the variance in the model.
Conclusion
The study findings suggest that an education program for health and medical college students should be developed. Additionally, when designing the education program, it is recommended that the contents for inducing attitude changes should include affective areas as well as knowledge-oriented contents. The study suggests that it is necessary to provide a systematic education program to decrease the stigma for HIV/AIDS patients before health care providers enter clinical practice.
9.Role of risk-rescue rating scale and inflammatory biomarkers in determining the disposition of suicide attempters at the emergency department
Journal of the Korean Society of Emergency Medicine 2020;31(6):576-585
Objective:
This study aimed to identify the utility of risk-rescue rating scale (RRRS), a psychological scale, and certain biomarkers in determining the disposition of patients visiting the emergency department (ED) after their suicide attempts.
Methods:
We retrospectively reviewed the medical records of patients who visited the ED after attempting suicide. The patients were classified into three groups for comparison: the discharged (DC) group, the general ward (GW) admission group, and the intensive care unit (ICU) admission group.
Results:
This study included 454 patients, with 344 patients in the DC group (75.8%), 63 patients in the GW admission group (13.9%), and 47 patients in the ICU admission group (10.3%). The three groups showed statistically significant differences in age, time of visit, physical status, presumptive diagnosis, the RRRS, mental status, C-reactive protein, neutrophil-lymphocyte ratio (NLR), and systemic immune inflammation index. Multivariate logistic regression analysis showed that predictors of the GW admission included the time of visit, mental status, and the RRRS. A receiver operating characteristic curve analysis of RRRS for the decision to admit to GW and ICU showed a cut-off value of 36.5 and 44.5, respectively. However, no inflammatory biomarkers were identified as factors predicting GW and ICU admissions.
Conclusion
The RRRS is useful in determining the disposition of patients who visited the ED after suicide attempts.
10.Role of risk-rescue rating scale and inflammatory biomarkers in determining the disposition of suicide attempters at the emergency department
Journal of the Korean Society of Emergency Medicine 2020;31(6):576-585
Objective:
This study aimed to identify the utility of risk-rescue rating scale (RRRS), a psychological scale, and certain biomarkers in determining the disposition of patients visiting the emergency department (ED) after their suicide attempts.
Methods:
We retrospectively reviewed the medical records of patients who visited the ED after attempting suicide. The patients were classified into three groups for comparison: the discharged (DC) group, the general ward (GW) admission group, and the intensive care unit (ICU) admission group.
Results:
This study included 454 patients, with 344 patients in the DC group (75.8%), 63 patients in the GW admission group (13.9%), and 47 patients in the ICU admission group (10.3%). The three groups showed statistically significant differences in age, time of visit, physical status, presumptive diagnosis, the RRRS, mental status, C-reactive protein, neutrophil-lymphocyte ratio (NLR), and systemic immune inflammation index. Multivariate logistic regression analysis showed that predictors of the GW admission included the time of visit, mental status, and the RRRS. A receiver operating characteristic curve analysis of RRRS for the decision to admit to GW and ICU showed a cut-off value of 36.5 and 44.5, respectively. However, no inflammatory biomarkers were identified as factors predicting GW and ICU admissions.
Conclusion
The RRRS is useful in determining the disposition of patients who visited the ED after suicide attempts.