1.Production and Characterization of Egg Yolk Antibodies to Human Rotavirus.
Dong Kyuk JUNG ; Kang Young KIM ; Shien Young KANG ; Han Soo JOO ; Hoo Kil JUNG ; Sung Seob YUN ; Suk Lak JUHN
Journal of Bacteriology and Virology 2001;31(4):379-385
No abstract available.
Antibodies*
;
Egg Yolk*
;
Humans*
;
Ovum*
;
Rotavirus*
2.The Clinical Analysis of Primary Malignant Hepatic Tumor in Childhood.
Ki Yun LIM ; Yeon Jun JEONG ; Sung Hoo JUNG ; Jae Chun KIM
Journal of the Korean Association of Pediatric Surgeons 2003;9(1):12-18
The purpose of our study was to evaluate children who underwent hepatic resection for primary malignant hepatic tumor in the period from January 1994 to December 2001. A total of 8 patients, seven with hepatoblastoma (HB) and one with hepatocellular carcinoma (HCC). were studied. One HCC was respectable at the initial diagnosis, but five cases of unresectable HB received two cycles of transarterial chemoembolization (TACE) before operation. One patient with an unresectable HB with bone marrow metastasis was operated after one cycle of TACE and one cycle of systemic chemotherapy based on CCG-823F protocol. All 6 patients who underwent TACE and neoadjuvant chemotherapy showed marked redcuction in tumor volume and a clear outline of the lesion. Major complication was not noticed. Mean alpha-fetoprotei (alpha-FP) level at diagnosis, after neoadjuvant chemotherapy and after postoperative chemotherapy was 9,818 (42-35,350), 664, and 10.1 ng/mL, respectively. Half life of the alpha-FP after complete resection was 5.1 days (3.0-8.7 days). Median follow up period was 57.1 months (10-97 months) and all the patients are alive with NED. In conclusion, preoperative chemotherapy, especially TACE, is effective, safe, and useful to treat initially unresectable hepatoblastoma, and serial level of the serum alpha-FP is a useful tumor marker for diagnosis and monitoring therapeutic responses.
Bone Marrow
;
Carcinoma, Hepatocellular
;
Child
;
Diagnosis
;
Drug Therapy
;
Follow-Up Studies
;
Half-Life
;
Hepatoblastoma
;
Humans
;
Neoplasm Metastasis
;
Tumor Burden
3.A Case of Pseudomyxoma Peritonei.
Jang Ju LEE ; Hoo Yun JUNG ; Young Sub JUNG ; Dong Young YANG ; Tae Sun PARK ; Young Hae PARK ; Hyo Jin LEE
Korean Journal of Obstetrics and Gynecology 2002;45(12):2307-2311
Pseudomyxoma Peritonei is a condition in which, as a result of ruptured mucinous tumors of the ovary or appendix, the peritoneal surface and omentum are involved with mucin secreting cells. This is a rare disease which occurs predominantly in middle aged women, characterized by histologically benign but whicth is clinically malignant. We have experienced a case of Pseudomyxoma Peritonei due to rupture of borderline mucnous tumor of the ovary and report with a brief review of literatures.
Appendix
;
Female
;
Humans
;
Middle Aged
;
Mucins
;
Omentum
;
Ovary
;
Pseudomyxoma Peritonei*
;
Rare Diseases
;
Rupture
4.Therapeutic Effect of Anti-Rotavirus Chicken Egg Yolk Immunoglobulin (IgY) on Diarrhea by Infection of Rotavirus.
In Seok LIM ; Ho Seok LEE ; Wonyong KIM ; Eung Sang CHOI ; Dong Hyuk JUNG ; Hoo Kil JUNG ; Sung Seob YUN ; Ho Nam CHUN
Korean Journal of Pediatrics 2005;48(12):1354-1361
PURPOSE: Rotavirus is an enteric pathogen that affects millions of children globally each year. But no specific therapy is available for the management of rotavirus diarrhea. Due to the clear need to define improved modality for treatment of rotavirus diarrhea, we evaluated the efficacy of anti- rotavirus IgY in the treatment of infants and children with gastroenteritis. METHODS: First, the amount of viral particle in the stools of thirteen patients (seven were given IgY, 6 placebo) infected by rotavirus were evaluated for 3 days with the quantitative RT-PCR method. Second, 36 children with known rotavirus infection identified by ELISA or semi-quantitative RT- PCR were evaluated. We gave 5 g anti-rotavirus egg yolk daily in two equally divided doses for 3 days to two groups (an 18 IgY group and an 18 placebo group), respectively after parenteral consent. Daily vomiting frequency, stool frequency, oral intake and urine output were monitored for 3 days, and electrolyte and blood chemistry were checked at the first and third days. RESULTS: First, in the placebo group, the amount of virus particles increased daily, but in the IgY group it decreased daily. Second, when IgY and placebos were given to children infected with rotavirus, diarrhea on the third day decreased significantly in the IgY group, compared with the placebo group. CONCLUSION: Treatment with antirotavirus immunoglobulin from immunized chicken's egg resulted in a decrease in the amount of viral particles in stools and diarrhea frequency in children. These results suggest that anti-rotavirus IgY is effective in the treatment of rotavirus gastroenteritis.
Infant
;
Child
;
Male
;
Female
;
Humans
5.The development and evaluation of a pediatric nurse education program to improve nursing competency for newly graduated nurses in a children’s hospital
Hae-kyung SHIN ; Hyo-yeong KIM ; Hyun-Jung KIM ; Min-kyung KIM ; Hyun-joo SHIN ; Hoo-yun LEE ; Jee-hee HAN ; Hye-jung LEE
Journal of Korean Academic Society of Nursing Education 2022;28(2):179-192
Purpose:
The purpose of this study is to identify the effects of a standardized educational program to improve nursing competency on newly graduated nurses in a children's hospital after developing and applying a pediatric nurse education program. The effectiveness of the program was confirmed by evaluating the clinical competency and field adaptation.
Methods:
In the first step, an education program was developed using the analysis, design, development, implementation and evaluation (ADDIE) model. As a second step, a similar experimental study of a single group repeat measures design was conducted to evaluate the clinical competency and field adaptation over time after application of the program. Additionally, a focus group interviews were conducted to collect subjective data on the effects and improvement points of the program.
Results:
As a result of applying the program, there was a significant change in the clinical competence and the field adaptation of newly graduated nurses in a children’s hospital. The categories derived from the focus group interviews were “getting special guidance,” “better care,” “becoming a nurse at a children's hospital” and “winning together.”
Conclusion
It was confirmed that the education program enhances the clinical competency of new nurses in children's hospitals. In addition, it provided the necessary data to understand the experiences of new nurses, help them adapt effectively, and establish appropriate interventions.
6.A case of phyllodes tumor in a 10-year-old girl.
Min Cheul SO ; Jeong Hwan HWANG ; Hyun Jo YUN ; Yeon Jun JEONG ; Sung Hoo JUNG ; Jae Chun KIM
Journal of Breast Cancer 2005;8(3):138-141
A premenarcheal 10-year-old girl visited our clinic due to a rapidly growing and painless mass of the right breast of three months duration. The breast mass was removed using a wide local excision. The pathological findings revealed the tumor was made up of a phyllodes tumor. A phyllodes tumor, also known as cystosarcoma phyllodes, is a rare fibroepithelial tumor of the breast, which accounts for 0.3 to 1.0 % of all breast neoplasms. They have a greater degree of stromal cellularity than fibroadenomas, with a characteristic leaf-like projection. These tumors can occur between the ages of 9 to 88 years, but are most common in the third and fourth decades of life; therefore, are uncommon in children. A phyllodes tumor in an adolescent patient was first studied by Amerson, in 1970, at which time he reviewed 355 cases from the American literature, and found a five percent incidence in subjects below 20 years old. Because only a few cases have been reported in the literature; here we report a case of a phyllodes tumor in a 10-year-old girl.
Adolescent
;
Breast
;
Breast Neoplasms
;
Child*
;
Female*
;
Fibroadenoma
;
Humans
;
Incidence
;
Phyllodes Tumor*
;
Young Adult
7.Two Childhood Cases of Heat Stroke with Rhabdomyolysis and Multiorgan Failure.
Yang Suk JUNG ; Jae Young LIM ; Yun Kyeong CHO ; Gye Woo YI ; Chan Hoo PARK ; Hyang Ok WOO ; Hee Shang YOUN
Journal of the Korean Pediatric Society 1998;41(4):568-573
Heat stroke occurs when body thermal regulation is upset and unable to dissipate adequate amounts of heat with rise in body temperature. Thus heat stroke may result in rhabdomyolysis and multiorgan failure. We observed two childhood cases of heat stroke with rhabdomyolysis and multiorgan failure. One case was caused by accidentally being left in a car trunk for 3 hours on a sunny afternoon in late spring and the other case occurred climbing a mountain on a hot summer day during a school trip for improving individual self-control. The first case, a boy almost 5 years old, displayed thetypical clinical features of heat stroke including hyperpyrexia, CNS disturbance, hot dry skin, acute liver failure, rhabdomyolysis, oligo- anuric acute renal failure, and disseminated intravascular coagulopathy. He was treated with general supportive care and daily hemodialysis. Despite the aggressive management, he died of shock on the sixteenth day of admission day. The second case, a 14-year-old middle school boy, displayed similiar features of the first case but showed milder symptoms. He was also treated with general supportive care and daily hemodialysis for 10 days. He recovered completely and was discharged in good condition. The public including medical and paramedical personnels should be warned of the dangers of childhood heat stroke, which is potentially lethal, but preventable.
Acute Kidney Injury
;
Adolescent
;
Allied Health Personnel
;
Body Temperature
;
Child
;
Child, Preschool
;
Heat Stroke*
;
Hot Temperature*
;
Humans
;
Liver Failure, Acute
;
Male
;
Renal Dialysis
;
Rhabdomyolysis*
;
Shock
;
Skin
8.Two Cases of Factor XI Deficiency in Sisters.
Yun Kyeong CHO ; Jae Young LIM ; Yang Suk JUNG ; Chan Hoo PARK ; Hyang Ok WOO ; Byung Kiu PARK ; Hee Shang YOUN
Journal of the Korean Pediatric Society 1998;41(3):401-404
We experienced two cases of factor XI deficiency in a 5 yearr 7 month-old girl, whose chief complaint was coke-colored gross hematuria, and her 9-year-old elder sister. The laboratory findings were prolonged aPTT and prominent deficiency of factor XI. The gross hematuria of the index case was identified due to acute poststreptococcal glomerulonephritis. So we report two cases of factor XI deficiency with a brief review of the related literature.
Child
;
Factor XI Deficiency*
;
Factor XI*
;
Female
;
Glomerulonephritis
;
Hematuria
;
Humans
;
Infant
;
Siblings*
9.Preclinical development of a humanized neutralizing antibody targeting HGF.
Hyori KIM ; Sung Hee HONG ; Jung Yong KIM ; In Chull KIM ; Young Whan PARK ; Song Jae LEE ; Seong Won SONG ; Jung Ju KIM ; Gunwoo PARK ; Tae Min KIM ; Yun Hee KIM ; Jong Bae PARK ; Junho CHUNG ; In Hoo KIM
Experimental & Molecular Medicine 2017;49(3):e309-
Hepatocyte growth factor (HGF) and its receptor, cMET, play critical roles in cell proliferation, angiogenesis and invasion in a wide variety of cancers. We therefore examined the anti-tumor activity of the humanized monoclonal anti-HGF antibody, YYB-101, in nude mice bearing human glioblastoma xenografts as a single agent or in combination with temozolomide. HGF neutralization, The extracellular signal-related kinases 1 and 2 (ERK1/2) phosphorylation, and HGF-induced scattering were assessed in HGF-expressing cell lines treated with YYB-101. To support clinical development, we also evaluated the preclinical pharmacokinetics and toxicokinetics in cynomolgus monkeys, and human and cynomolgus monkey tissue was stained with YYB-101 to test tissue cross-reactivity. We found that YYB-101 inhibited cMET activation in vitro and suppressed tumor growth in the orthotopic mouse model of human glioblastoma. Combination treatment with YYB-101 and temozolomide decreased tumor growth and increased overall survival compared with the effects of either agent alone. Five cancer-related genes (TMEM119, FST, RSPO3, ROS1 and NBL1) were overexpressed in YYB-101-treated mice that showed tumor regrowth. In the tissue cross-reactivity assay, critical cross-reactivity was not observed. The terminal elimination half-life was 21.7 days. Taken together, the in vitro and in vivo data demonstrated the anti-tumor efficacy of YYB-101, which appeared to be mediated by blocking the HGF/cMET interaction. The preclinical pharmacokinetics, toxicokinetics and tissue cross-reactivity data support the clinical development of YYB-101 for advanced cancer.
Animals
;
Antibodies, Neutralizing*
;
Cell Line
;
Cell Proliferation
;
Glioblastoma
;
Half-Life
;
Hepatocyte Growth Factor
;
Heterografts
;
Humans*
;
In Vitro Techniques
;
Macaca fascicularis
;
Mice
;
Mice, Nude
;
Pharmacokinetics
;
Phosphorylation
;
Phosphotransferases
;
Toxicokinetics
10.Prevalence of Hepatitis C Virus Genotype in Pusan, Korea.
Hai Rim SHIN ; Jue Bok SONG ; Byung Seong SUH ; In Sik KIM ; Yun Young HUH ; Kap Yeol JUNG ; Joon Youn KIM ; In Hoo KIM ; Jung Man KIM ; Wo Won SHIN ; Hak Do YANG ; Myung Kee LEE
Korean Journal of Epidemiology 1997;19(2):111-121
The authors investigated the distribution of Hepatitis C virus (HCV) genotype in blood donors with positive for anti-HCV (n=34), health check-up examiness with positive for anti-HCV (n=29), and in patients with various chronic liver disases positive for anti-HCV (n=63) in Pusan, Korea. HCV genotype was determined by using the molecular typing method through the reverse transcription - polymerase chain reaction (RT - PCR) with four type specific primers. Among 116 anti-HCV positive study subjects, 66.4% were positive HCV RNA by RT-PCR. The major HCV genotype was type II (31.9%) and it was followed by type III (27.6%). Two cases were type IV (1.7%). Double infection with two different HCV genotypes (mixed type) was found in three cases (2.6%). Three cases (2.6%) were not determined by the four type specific primers, it may have different subtype. Type II was more prevalent than type III in the blood donors and health check-up examinees, but the reverse was true in the chronic liver disease patients including hepatocellular carcinoma patients. Type II was more prevalent than type III among the anti-HCV positive subjects with risk factors such as acupuncture history, surgical operation history, and trans-fusion history. In contrast type III was more prevalent than type II among the subjects without the above risk factors. It is supposed that the pathogenicity of different kind of HCV genotype might be different. The results of this study suggest that the type II and type III may be the major CV genotype in Korea. The differences of HCV genotype distribution between the study groups support that the clinical significance according to the HCV genotype may be different.
Acupuncture
;
Blood Donors
;
Busan*
;
Carcinoma, Hepatocellular
;
Genotype
;
Hepacivirus*
;
Hepatitis C*
;
Hepatitis*
;
Humans
;
Korea*
;
Liver
;
Liver Diseases
;
Molecular Typing
;
Polymerase Chain Reaction
;
Prevalence*
;
Reverse Transcription
;
Risk Factors
;
RNA
;
Virulence