1.Generation of Highly Expandable Intestinal Spheroids Composed of Stem Cells
Ohman KWON ; Ohman KWON ; Won Dong YU ; Won Dong YU ; Ye Seul SON ; Ye Seul SON ; Kwang Bo JUNG ; Kwang Bo JUNG ; Hana LEE ; Hana LEE ; Mi-Young SON ; Mi-Young SON
International Journal of Stem Cells 2022;15(1):104-111
Many of early findings regarding intestinal stem cells (ISCs) and their niche in the human intestine have relied on colorectal cancer cell lines and labor-intensive and time-consuming mouse models. However, these models cannot accurately recapitulate the physiologically relevant aspects of human ISCs. In this study, we demonstrate a reliable and robust culture method for 3D expanding intestinal spheroids (InSexp ) mainly comprising ISCs and progenitors, which can be derived from 3D human intestinal organoids (HIOs). We did functional chararcterization of InSexp derived from 3D HIOs, differentiated from human pluripotent stem cells, and optimization culture methods. Our results indicate that InSexp can be rapidly expanded and easily passaged, and show enhanced growth rates via WNT pathway activation. InSexp are capable of exponential cell expansion and cryopreservation. Furthermore, in vitro-matured HIO-derived InSexp proliferate faster than immature HIO-derived InSexp with preservation of the parental HIO characteristics. These findings may facilitate the development of scalable culture systems for the long-term maintenance of human ISCs and provide an alternative platform for studying ISC biology.
2.Distribution of Neuropeptides-Containing Neurons in the Superior Colliculus of the Cat Brain.
Wol Bong CHOI ; Moo Ho WON ; Mi A SON
Journal of the Korean Ophthalmological Society 1993;34(5):457-467
The distribution and morphology of cholecystokinin-8 (CCK 8)-, neuropeptide Y (NPY)-, Substance P (SP)- and vasoactive intestinal polypeptide (VIP)-immunoreactivity were examined in the cat superior colliculus (SC) by means of immunohistochemistry. Judging from this study, some neuropeptides-IR neurons may be present in the superficial layers of the sc. And these neurons and neuropeptides may be involved in the functions of the superficial layers.
Animals
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Brain*
;
Cats*
;
Immunohistochemistry
;
Neurons*
;
Neuropeptide Y
;
Neuropeptides
;
Substance P
;
Superior Colliculi*
;
Vasoactive Intestinal Peptide
3.The Mediating Effect of Nursing Professionalism in the Relationship between Critical Thinking Disposition and Medication Safety Competency of Peri-Anesthesia Nurses
Journal of Korean Academy of Nursing Administration 2024;30(5):543-552
Purpose:
This study aimed to examine the mediating role of nursing professionalism in the relationship between critical thinking disposition and medication safety competency among peri-anesthesia nurses.
Methods:
Data were collected from 128 peri-anesthesia nurses with at least six months of experience in recovery-related departments across medical institutions nationwide. The analysis was conducted using IBM SPSS Statistics for Windows, version 24.0, including descriptive statistics, t-tests, one-way ANOVA, Scheffé tests, Pearson’s correlation coefficients, stepwise multiple regression, and the SPSS Process Macro.
Results:
Medication safety competency showed a significant positive correlation with critical thinking disposition (r=.79, p<.001) and nursing professionalism (r=.80, p<.001).Similarly, critical thinking disposition was positively correlated with nursing professionalism (r=.78, p<.001). Nursing professionalism was identified as a partial mediator in the relationship between critical thinking disposition and medication safety competency, with a 95% confidence interval of .11 to .63.
Conclusion
Critical thinking disposition significantly enhances medication safety competency, with nursing professionalism serving as a partial mediator.These findings underscore the importance of developing targeted educational programs to foster critical thinking skills and nursing professionalism, ultimately improving medication safety competency among peri-anesthesia nurses.
4.The Mediating Effect of Nursing Professionalism in the Relationship between Critical Thinking Disposition and Medication Safety Competency of Peri-Anesthesia Nurses
Journal of Korean Academy of Nursing Administration 2024;30(5):543-552
Purpose:
This study aimed to examine the mediating role of nursing professionalism in the relationship between critical thinking disposition and medication safety competency among peri-anesthesia nurses.
Methods:
Data were collected from 128 peri-anesthesia nurses with at least six months of experience in recovery-related departments across medical institutions nationwide. The analysis was conducted using IBM SPSS Statistics for Windows, version 24.0, including descriptive statistics, t-tests, one-way ANOVA, Scheffé tests, Pearson’s correlation coefficients, stepwise multiple regression, and the SPSS Process Macro.
Results:
Medication safety competency showed a significant positive correlation with critical thinking disposition (r=.79, p<.001) and nursing professionalism (r=.80, p<.001).Similarly, critical thinking disposition was positively correlated with nursing professionalism (r=.78, p<.001). Nursing professionalism was identified as a partial mediator in the relationship between critical thinking disposition and medication safety competency, with a 95% confidence interval of .11 to .63.
Conclusion
Critical thinking disposition significantly enhances medication safety competency, with nursing professionalism serving as a partial mediator.These findings underscore the importance of developing targeted educational programs to foster critical thinking skills and nursing professionalism, ultimately improving medication safety competency among peri-anesthesia nurses.
5.The Mediating Effect of Nursing Professionalism in the Relationship between Critical Thinking Disposition and Medication Safety Competency of Peri-Anesthesia Nurses
Journal of Korean Academy of Nursing Administration 2024;30(5):543-552
Purpose:
This study aimed to examine the mediating role of nursing professionalism in the relationship between critical thinking disposition and medication safety competency among peri-anesthesia nurses.
Methods:
Data were collected from 128 peri-anesthesia nurses with at least six months of experience in recovery-related departments across medical institutions nationwide. The analysis was conducted using IBM SPSS Statistics for Windows, version 24.0, including descriptive statistics, t-tests, one-way ANOVA, Scheffé tests, Pearson’s correlation coefficients, stepwise multiple regression, and the SPSS Process Macro.
Results:
Medication safety competency showed a significant positive correlation with critical thinking disposition (r=.79, p<.001) and nursing professionalism (r=.80, p<.001).Similarly, critical thinking disposition was positively correlated with nursing professionalism (r=.78, p<.001). Nursing professionalism was identified as a partial mediator in the relationship between critical thinking disposition and medication safety competency, with a 95% confidence interval of .11 to .63.
Conclusion
Critical thinking disposition significantly enhances medication safety competency, with nursing professionalism serving as a partial mediator.These findings underscore the importance of developing targeted educational programs to foster critical thinking skills and nursing professionalism, ultimately improving medication safety competency among peri-anesthesia nurses.
6.The Mediating Effect of Nursing Professionalism in the Relationship between Critical Thinking Disposition and Medication Safety Competency of Peri-Anesthesia Nurses
Journal of Korean Academy of Nursing Administration 2024;30(5):543-552
Purpose:
This study aimed to examine the mediating role of nursing professionalism in the relationship between critical thinking disposition and medication safety competency among peri-anesthesia nurses.
Methods:
Data were collected from 128 peri-anesthesia nurses with at least six months of experience in recovery-related departments across medical institutions nationwide. The analysis was conducted using IBM SPSS Statistics for Windows, version 24.0, including descriptive statistics, t-tests, one-way ANOVA, Scheffé tests, Pearson’s correlation coefficients, stepwise multiple regression, and the SPSS Process Macro.
Results:
Medication safety competency showed a significant positive correlation with critical thinking disposition (r=.79, p<.001) and nursing professionalism (r=.80, p<.001).Similarly, critical thinking disposition was positively correlated with nursing professionalism (r=.78, p<.001). Nursing professionalism was identified as a partial mediator in the relationship between critical thinking disposition and medication safety competency, with a 95% confidence interval of .11 to .63.
Conclusion
Critical thinking disposition significantly enhances medication safety competency, with nursing professionalism serving as a partial mediator.These findings underscore the importance of developing targeted educational programs to foster critical thinking skills and nursing professionalism, ultimately improving medication safety competency among peri-anesthesia nurses.
7.New Synthesis of Sestamibi and Comparison of Stability of Its Formulation.
Mi Won SON ; Joong In LIM ; Young Soo CHANG ; Mi Young JUNG ; Lak Shin JEONG ; Soon Hoe KIM ; Won Bae KIM ; Jae Min JEONG
Korean Journal of Nuclear Medicine 2001;35(5):334-341
No abstract available.
8.Statistical observation of the infants who were admitted to NICU.
Young Pyo CHANG ; Dong Woo SON ; Soon Mi PARK ; Mi Jung KIM ; Chang Ryul KIM ; Hyee Sub KIM ; Yong Won PARK ; Hye Kyung HAN ; Won Soon PARK ; Myoung Jae CHOEY ; Beyong Il KIM ; Son Moon SHIN
Korean Journal of Perinatology 1993;4(4):480-497
9.Efficacy of Coculture System in the Patients with Poor Prognoses on Human IVF-ET Program.
Hye Kyung BYUN ; Hye Won YOUM ; Mi Kyung KOONG ; Il Pyo SON ; Inn Soo KANG ; Ho Joon LEE
Korean Journal of Fertility and Sterility 1997;24(2):211-216
SUMMARY: The present study was carried out to evaluate whether the coculture system of human embryos with Vero cells can improve the quality of embryo or overcome the repetitive implantation failures in order to obtain pregnancy. From January to December 1996, a total 202 cases which patients with the problems of repetitive implantation failures (group I) or those with the poor embryonic quality in their previous cycles (group II) was analysed. The quality of cocultured embryo, pregnancy, on-going and implantation rates between coculture and control groups were compared. Of 93 cases in group I, coculture was performed in 34 cases and conventional IVF for the rest. Of 109 cases in group II, 36 for coculture and 73 for conventional IVF. In group I, pregnancy, on-going and implantation rates in coculture group (14/34 (41.2%), 9/34 (26.5%), 16/81 (19.8%), respectively) were higher than those of control (11/59 (18.6%), 8/59 (13.6%), 12/152 (7.9%), respectively). There is significance in the pregnancy and implantation rates (p=0.028 and p=0.015). In group II, pregnancy, on-going and implantation rates in coculture group (8/36 (22.2%), 5/36 (13.9%), 8/87 (9.2%), respectively) were higher than those of control (5/73 (6.8%), 3/73 (4.1%), 3/158 (1.9%), respectively). Like the result of group 1, there is significance in the pregnancy and implantation rates (p=0.028 and p=0.022). Coculture system with Vero cells works well in the groups of the two indications. Although the case of 3 day-coculture was small as 15 cases in group II, 3 day-coculture improved pregnancy rate (4/15 (26.7%)). Therefore, 3 day-coculture with assisted hatching is recommended to the patients with poor embryonic quality. In conclusion, coculture system with Vero cells can be suggested as an effective method which improves pregnancy rate in those who have repetitive implantation failures or whose embryonic quality was poor in their previous cycles.
Coculture Techniques*
;
Embryonic Structures
;
Humans
;
Humans*
;
Pregnancy
;
Pregnancy Rate
;
Prognosis*
;
Vero Cells
10.The Clinical Effect of Recombinant Human Granulocyte-Colony Stimulating Factor to the Leukopenia During Chemotherapy in the Patients with Gynecologic Malignancies.
In Suk CHOI ; Jung Mi SON ; Hyun KIM ; Gun Sang YOO ; jun Mo AN ; Won Gue KIM ; Un Dong PARK
Korean Journal of Gynecologic Oncology and Colposcopy 1996;7(2):100-109
An increase in the dose of chemotherapy enhances the response of many experimental and clinical cancers, but the extent of chemotherapy dose escalation and repeated use is often limited by myelosuppression. The side effects of chemotherapy including bleeding and infection due to myelosuppression have resulted in delayed therapy and a reduction in the therapeutic dose, therefore it is necessary to overcome myelosuppression especially leukopenia in patients with gynecologic malignancies who recieved chemotherapy. This study is undertaken to investigate the clinical effects of rhG-CSF(recombinant human Granulocyte-colony stimulating factor) in 29 patients with gynecologic malignancy who recieved chemotherapy. It was given at a dose of 100 microgram bid/day subcutaneously until significantly increase of leukocyte count in leukopenic patient. The results showed, the rhG-CSF has significantly increased the number and function of leukocyte. The use of rhG-CSF was effective and useful to treat chemotherapy induced leukopenia and to accelerate the recovery from this complications.
Drug Therapy*
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Hemorrhage
;
Humans*
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Leukocyte Count
;
Leukocytes
;
Leukopenia*