1.Improvement of titration methods for porcine rotavirus, its serum neutralizing antibody and of virus isolation from feces.
Hyock Jin KWON ; Seok Min YOON ; Rung Kong HA ; Sung Soo CHO ; Ji Byung YOON
Journal of the Korean Society of Virology 1991;21(2):113-117
No abstract available.
Antibodies, Neutralizing*
;
Feces*
;
Rotavirus*
4.A Novel Germline Mutation in BRCA1 Causes Exon 20 Skipping in a Korean Family with a History of Breast Cancer.
Kyong Ah YOON ; Sun Young KONG ; Eun Ji LEE ; Jeong Nam CHO ; Suhwan CHANG ; Eun Sook LEE
Journal of Breast Cancer 2017;20(3):310-313
Germline mutations in the BRCA1 and BRCA2 genes are strong genetic factors for predispositions to breast, ovarian, and other related cancers. This report describes a family with a history of breast and ovarian cancers that harbored a novel BRCA1 germline mutation. A single nucleotide deletion in intron 20, namely c.5332+4delA, was detected in a 43-year-old patient with breast cancer. This mutation led to the skipping of exon 20, which in turn resulted in the production of a truncated BRCA1 protein that was 1773 amino acids in length. The mother of the proband had died due to ovarian cancer and had harbored the same germline mutation. Ectopically expressed mutant BRCA1 protein interacted with the BARD1 protein, but showed a reduced transcriptional function, as demonstrated by the expression of cyclin B1. This novel germline mutation in the BRCA1 gene caused familial breast and ovarian cancers.
Adult
;
Amino Acids
;
BRCA1 Protein
;
Breast Neoplasms*
;
Breast*
;
Cyclin B1
;
Exons*
;
Genes, BRCA1
;
Genes, BRCA2
;
Germ-Line Mutation*
;
Humans
;
Introns
;
Mothers
;
Ovarian Neoplasms
5.Outcome of pelvic arterial embolization for postpartum hemorrhage: A retrospective review of 117 cases.
Ji Yoon CHEONG ; Tae Wook KONG ; Joo Hyuk SON ; Je Hwan WON ; Jeong In YANG ; Haeng Soo KIM
Obstetrics & Gynecology Science 2014;57(1):17-27
OBJECTIVE: The aim of this study was to evaluate indications, efficacy, and complications associated with pelvic arterial embolization (PAE) for postpartum hemorrhage (PPH). METHODS: We retrospectively reviewed the medical records of 117 consecutive patients who underwent PAE for PPH between January 2006 and June 2013. RESULTS: In our single-center study, 117 women underwent PAE to control PPH refractory to conservative management including uterine massage, use of uterotonic agents, surgical repair of genital tract lacerations, and removal of retained placental tissues. Among 117 patients, 69 had a vaginal delivery and 48 had a Cesarean section. The major indication for embolization was uterine atony (54.7%). Other causes were low genital tract lacerations (21.4%) and abnormal placentation (14.5%). The procedure showed a clinical success rate of 88.0% with 14 cases of PAE failure; there were 4 hemostatic hysterectomies and 10 re-embolizations. On univariate analysis, PAE failure was associated with overt disseminated intravascular coagulation (P=0.009), transfusion of more than 10 red blood cell units (RBCUs, P=0.002) and embolization of both uterine and ovarian arteries (P=0.003). Multivariate analysis showed that PAE failure was only associated with transfusions of more than 10 RBCUs (odds ratio, 8.011; 95% confidence interval, 1.531-41.912; P=0.014) and embolization of both uterine and ovarian arteries (odds ratio, 20.472; 95% confidence interval, 2.715-154.365; P=0.003), which were not predictive factors, but rather, were the results of longer time for PAE. Three patients showed uterine necrosis and underwent hysterectomy. CONCLUSION: PAE showed high success rates, mostly without procedure-related complications. Thus, it is a safe and effective adjunct or alternative to hemostatic hysterectomy, when primary management fails to control PPH.
Arteries
;
Cesarean Section
;
Disseminated Intravascular Coagulation
;
Erythrocytes
;
Female
;
Humans
;
Hysterectomy
;
Lacerations
;
Massage
;
Medical Records
;
Multivariate Analysis
;
Necrosis
;
Placentation
;
Postpartum Hemorrhage*
;
Postpartum Period*
;
Pregnancy
;
Retrospective Studies*
;
Uterine Inertia
6.Risk of Metabolic and Cardiovascular Risk Factors in Individuals with Autonomic Imbalance Measured by Heart Rate Variability
Hyewon CHUNG ; Yoon Hwan OH ; Ji Hyun MOON ; Hyeon Ju KIM ; Mi Hee KONG
Korean Journal of Health Promotion 2020;20(2):41-48
Background:
Studies have reported that reduced autonomic nervous system activity could result in a suboptimal health condition and various diseases, further increasing the mortality rate. The present study aimed to determine the difference in risk factors for metabolic and cardiovascular diseases in patients with reduced or unstable autonomic activity according to heart rate variability test results.
Methods:
We recorded blood pressure, physical measurements (body mass index and waist circumference), fasting blood glucose, and blood lipid status. Indicators representative of autonomic nerve functionality (total power [TP], standard deviation of the normal-to-normal intervals [SDNN], low-frequency band [LF], high-frequency band [HF]) were measured using a 5-minute heart rate variability test. Each indicator was divided into quartiles.
Results:
In men, the risk of abdominal obesity was high in the group with a low TP. In the group with a low SDNN, TP, and LF, the risk of a blood pressure increase was high. When LH and HF were low, there was a high risk of increased fasting blood sugar, whereas when LH was low, there was a high risk of hypertriglyceridemia. Women with SDNN loss had higher odds ratios for abdominal obesity and low high-density lipoprotein cholesterolemia.
Conclusions
These results indicate a higher risk of having risk factors for metabolic and cardiovascular diseases, such as abdominal obesity, elevated blood pressure, hyperglycemia, hypertriglyceridemia, and low high-density lipoprotein cholesterolemia in a group with reduced autonomic activity measured by heart rate variability. Women with a low SDNN had a 4.51-fold higher risk of abdominal obesity than women with a high SDNN, showing the greatest value of the heart rate variability indices.
7.Comparison of laparoscopic versus conventional open surgical staging procedure for endometrial cancer.
Tae Wook KONG ; Kyung Mi LEE ; Ji Yoon CHEONG ; Woo Young KIM ; Suk Joon CHANG ; Seung Chul YOO ; Jong Hyuck YOON ; Ki Hong CHANG ; Hee Sug RYU
Journal of Gynecologic Oncology 2010;21(2):106-111
OBJECTIVE: The aim of this study was to compare the surgical outcomes of laparoscopic surgery and conventional laparotomy for endometrial cancer. METHODS: A total of 104 consecutive patients were non-randomly assigned to either laparoscopic surgery or laparotomy. All patients underwent comprehensive surgical staging procedures including total hysterectomy, bilateral salpingo-oophorectomy, and pelvic/para-aortic lymphadenectomy. The safety, morbidity, and survival rates of the two groups were compared, and the data was retrospectively analyzed. RESULTS: Thirty-four patients received laparoscopic surgery and 70 underwent laparotomy. Operation time for the laparoscopic procedure was 227.0+/-28.8 minutes, which showed significant difference from the 208.1+/-46.4 minutes (p=0.032) of the laparotomy group. The estimated blood loss of patients undergoing laparoscopic surgery was 230.3+/-92.4 mL. This was significantly less than that of the laparotomy group (301.9+/-156.3 mL, p=0.015). The laparoscopic group had an average of 20.8 pelvic and 9.1 para-aortic nodes retrieved, as compared to 17.2 pelvic and 8.5 para-aortic nodes retrieved in the laparotomy group. There was no significant difference (p=0.062, p=0.554). The mean hospitalization duration was significantly greater in the laparotomy group than the laparoscopic group (23.3 and 16.4 days, p<0.001). The incidence of postoperative complications was 15.7% and 11.8% in the laparotomy and laparoscopic groups respectively. No statistically significant difference was found between the two groups in the survival rate. CONCLUSION: Laparoscopic surgical staging operation is a safe and effective therapeutic procedure for management of endometrial cancer with an acceptable morbidity compared to the laparotomic approach, and is characterized by far less blood loss and shorter postoperative hospitalization.
Endometrial Neoplasms
;
Female
;
Hospitalization
;
Humans
;
Hysterectomy
;
Incidence
;
Laparoscopy
;
Laparotomy
;
Lymph Node Excision
;
Postoperative Complications
;
Retrospective Studies
;
Survival Rate
8.Post-Operative Hemorrhage after Myomectomy: Safety and Efficacy of Transcatheter Uterine Artery Embolization.
Alvin Yu Hon WAN ; Ji Hoon SHIN ; Hyun Ki YOON ; Gi Young KO ; Sangik PARK ; Nak Jong SEONG ; Chang Jin YOON
Korean Journal of Radiology 2014;15(3):356-363
OBJECTIVE: To evaluate the safety and clinical efficacy of transcatheter uterine artery embolization (UAE) for post-myomectomy hemorrhage. MATERIALS AND METHODS: We identified eight female patients (age ranged from 29 to 51 years and with a median age of 37) in two regional hospitals who suffered from post-myomectomy hemorrhage requiring UAE during the time period from 2004 to 2012. A retrospective review of the patients' clinical data, uterine artery angiographic findings, embolization details, and clinical outcomes was conducted. RESULTS: The pelvic angiography findings were as follows: hypervascular staining without bleeding focus (n = 5); active contrast extravasation from the uterine artery (n = 2); and pseudoaneurysm in the uterus (n = 1). Gelatin sponge particle was used in bilateral uterine arteries of all eight patients, acting as an empirical or therapeutic embolization agent for the various angiographic findings. N-butyl-2-cyanoacrylate was administered to the target bleeding uterine arteries in the two patients with active contrast extravasation. Technical and clinical success were achieved in all patients (100%) with bleeding cessation and no further related surgical intervention or embolization procedure was required for hemorrhage control. Uterine artery dissection occurred in one patient as a minor complication. Normal menstrual cycles were restored in all patients. CONCLUSION: Uterine artery embolization is a safe, minimally invasive, and effective management option for controlling post-myomectomy hemorrhage without the need for hysterectomy.
Adult
;
Female
;
Humans
;
Hysterectomy
;
Leiomyoma/blood supply/*surgery
;
Middle Aged
;
Postoperative Hemorrhage/*therapy
;
Retrospective Studies
;
Treatment Outcome
;
Uterine Artery Embolization/adverse effects/*methods
;
Uterine Neoplasms/blood supply/*surgery
;
Uterus/blood supply/surgery
9.Identification of Novel Genetic Variants Related to Trabecular Bone Score in Community-Dwelling Older Adults
Sung Hye KONG ; Ji Won YOON ; Jung Hee KIM ; JooYong PARK ; Jiyeob CHOI ; Ji Hyun LEE ; A Ram HONG ; Nam H. CHO ; Chan Soo SHIN
Endocrinology and Metabolism 2020;35(4):801-810
Background:
As the genetic variants of trabecular bone microarchitecture are not well-understood, we performed a genome-wide association study to identify genetic determinants of bone microarchitecture analyzed by trabecular bone score (TBS).
Methods:
TBS-associated genes were discovered in the Ansung cohort (discovery cohort), a community-based rural cohort in Korea, and then validated in the Gene-Environment Interaction and Phenotype (GENIE) cohort (validation cohort), consisting of subjects who underwent health check-up programs. In the discovery cohort, 2,451 participants were investigated for 1.42 million genotyped and imputed markers.
Results:
In the validation cohort, identified as significant variants were evaluated in 2,733 participants. An intronic variant in iroquois homeobox 3 (IRX3), rs1815994, was significantly associated with TBS in men (P=3.74E-05 in the discovery cohort, P=0.027 in the validation cohort). Another intronic variant in mitogen-activated protein kinase kinase 5 (MAP2K5), rs11630730, was significantly associated with TBS in women (P=3.05E-09 in the discovery cohort, P=0.041 in the validation cohort). Men with the rs1815994 variant and women with the rs11630730 variant had lower TBS and lumbar spine bone mineral density. The detrimental effects of the rs1815994 variant in men and rs11630730 variant in women were also identified in association analysis (β=–0.0281, β=–0.0465, respectively).
Conclusion
In this study, the rs1815994 near IRX3 in men and rs11630730 near MAP2K5 in women were associated with deterioration of the bone microarchitecture. It is the first study to determine the association of genetic variants with TBS. Further studies are needed to confirm our findings and identify additional variants contributing to the trabecular bone microarchitecture.
10.Herpes Zoster with Aseptic Meningitis in Immunocompetent Children: A Case Series.
Hyun Ji JANG ; Hye Won YOO ; Lira YOON ; Ju Hyun KONG ; Yunjin LEE ; Sang Ook NAM ; Young Mi KIM
Journal of the Korean Child Neurology Society 2017;25(4):281-285
Primary clinical features of rash and neurological complications due to varicella zoster virus (VZV) reactivation are rare in a healthy population, especially in immunocompetent children. Early diagnosis and prompt treatment are delayed often due to their rarity. We present four immunocompetent children with VZV reactivation resulting in aseptic meningitis and herpes zoster affecting multiple cranial and spinal nerves. We reviewed the clinical manifestations, laboratory findings, treatment options and outcome of aseptic meningitis associated VZV reactivation. All patients presented with the typical skin lesion of VZV reactivation and definitive laboratory findings of central nervous system infection, without systemic inflammation. Initial manifestations of VZV reactivation included Ramsay Hunt syndrome, herpes zoster ophthalmicus, and herpes zoster affecting the left thoracic dermatomes 4–5. Intravenous acyclovir was administered and all patients recovered fully without any significant sequelae. VZV reactivation can lead to various neurological complications in immunocompetent children. Early recognition and treatment with acyclovir are important for improving the outcome of neurologic complications of VZV reactivation.
Acyclovir
;
Central Nervous System Infections
;
Chickenpox
;
Child*
;
Early Diagnosis
;
Exanthema
;
Herpes Zoster Ophthalmicus
;
Herpes Zoster Oticus
;
Herpes Zoster*
;
Herpesvirus 3, Human
;
Humans
;
Inflammation
;
Meningitis, Aseptic*
;
Skin
;
Spinal Nerves