1.Inhibition of anticancer chemotherapy-induced stomatitis by oral cryotherapy.
Jung Ran BYUN ; Ji Sun KIM ; Soon Nam LEE
Journal of the Korean Cancer Association 1993;25(5):760-766
No abstract available.
Cryotherapy*
;
Stomatitis*
2.A Case of Ulcerative Colitis.
Jong Sung EUM ; Hwa Jin BYUN ; Ai Ran KIM ; Jae Sun JUNG ; Hee Ju KIM ; Seung Il AHN
Journal of the Korean Pediatric Society 1989;32(1):109-115
No abstract available.
Colitis, Ulcerative*
;
Ulcer*
3.The Occurrence of Renal Scarring in Children with Unilateral Vesicoureteral Reflux.
Tae Ho LEE ; Mi Ran SON ; Soon Ok BYUN ; Jung Woong MOON
Korean Journal of Pediatrics 2005;48(9):998-1003
PURPOSE: We evaluated the occurrence of renal scarring in children with unilateral vesicoureteral reflux (VUR), and the relationships between renal scar formation and risk factors such as VUR, duration of fever, acute-phase reactant, age, and sex. METHODS: We retrospectively analyzed the data of 35 children newly diagnosed with unilateral vesicoureteral reflux after urinary tract infection (UTI) in Wallace Memorial Baptist Hospital between January 1996 and December 2004. Ultrasonography, Erythrocyte sedimentation rate (ESR), and C- reactive protein (CRP) were performed initially. Voiding cystourethrography (VCUG) was performed 1 to 3 weeks after treatment with UTI. (99m) Tc-dimercaptosuccinic acid (DMSA) scan was performed 4 to 6 months after treatment. RESULTS: Scintigraphic renal damage was present in 29 percent of the refluxing and in 3 percent of the nonrefluxing kidneys (P< 0.05). The severity of VUR was significantly correlated with renal scar formation (P< 0.05). The duration of fever before treatmen (5.0+/-1.3 vs 2.6+/-1.3) and prolonged fever of over 5 days were significantly different between renal scar group and non-renal scar group (P< 0.05). ESR (56.3+/-23.8 vs 27.9+/-18.1 mm/hr, P< 0.05) and CRP (12.8+/-7.3 vs 3.9+/-3.8 mg/dL, P< 0.05) at the diagnosis of UTI in the renal scar group were higher, compared to those of the non-renal scar group. There were no significant differences in age and sex between the two groups. CONCLUSION: The presence and grade of VUR, the duration of fever before treatment, prolonged fever over 5 days, ESR, and CRP were risk factors for renal scarring, irrespective of age and sex. Diagnosis and management of VUR, in children with UTI, is important to prevent renal scars.
Blood Sedimentation
;
Child*
;
Cicatrix*
;
Diagnosis
;
Fever
;
Humans
;
Kidney
;
Protestantism
;
Retrospective Studies
;
Risk Factors
;
Ultrasonography
;
Urinary Tract Infections
;
Vesico-Ureteral Reflux*
4.Doxorubicin Attenuates Free Fatty Acid-Induced Lipid Accumulation via Stimulation of p53 in HepG2 Cells
Chawon YUN ; Sou Hyun KIM ; Doyoung KWON ; Mi Ran BYUN ; Ki Wung CHUNG ; Jaewon LEE ; Young-Suk JUNG
Biomolecules & Therapeutics 2024;32(1):94-103
Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive accumulation of fat in the liver, and there is a global increase in its incidence owing to changes in lifestyle and diet. Recent findings suggest that p53 is involved in the development of non-alcoholic fatty liver disease; however, the association between p53 expression and the disease remains unclear. Doxorubicin, an anticancer agent, increases the expression of p53. Therefore, this study aimed to investigate the role of doxorubicin-induced p53 upregulation in free fatty acid (FFA)-induced intracellular lipid accumulation. HepG2 cells were pretreated with 0.5 μg/mL of doxorubicin for 12 h, followed by treatment with FFA (0.5 mM) for 24 h to induce steatosis. Doxorubicin pretreatment upregulated p53 expression and downregulated the expression of endoplasmic reticulum stress- and lipid synthesis-associated genes in the FFA -treated HepG2 cells. Additionally, doxorubicin treatment upregulated the expression of AMP-activated protein kinase, a key modulator of lipid metabolism. Notably, siRNA-targeted p53 knockdown reversed the effects of doxorubicin in HepG2 cells.Moreover, doxorubicin treatment suppressed FFA -induced lipid accumulation in HepG2 spheroids. Conclusively, these results suggest that doxorubicin possesses potential application for the regulation of lipid metabolism by enhance the expression of p53 an in vitro NAFLD model.
5.The relationship between serum human papillomavirus 16 DNA and clinicopathological prognostic factors in cervical cancer patients.
Eun Suk LEE ; Dae Hoon JEONG ; Joo Ran KIM ; Dae Shim LEE ; Mi Sung KIM ; Yu Kyung CHO ; Jung Mi BYUN ; Young Mi PARK ; Young Nam KIM ; Chul Hoi JEONG ; Kyung Bok LEE ; Moon Su SUNG ; Ki Tae KIM
Korean Journal of Obstetrics and Gynecology 2009;52(12):1265-1272
OBJECTIVE: To study the relationship between serum human papillomavirus (HPV) deoxyribonucleic acid (DNA) and clinicopathologic prognostic factors and the clinical usefulness of serum HPV 16 DNA in cervical cancer patients. METHODS: All the patients were treated at our institution, from January, 2002 to February, 2007. DNA extracted from serum of 17 patients with HPV 16 infected carcinoma in situ and 65 patients with HPV 16 infected squamous cell carcinoma of the uterine cervix (stage IA-IIIB) were examined for HPV 16 DNA using polymerase chain reaction with types 16 specific E6 primer. Clinicopathological parameters were obtained from medical records, and the relationship between the discrete variables and serum HPV 16 DNA status were evaluated. RESULTS: HPV 16 DNA was not detected in serum from all patients with carcinoma in situ. However, among the 65 patients with HPV 16 infected squamous cell carcinoma of the uterine cervix, we detected 17 HPV 16 DNA positive samples (26.2%) in serum. Positive HPV 16 DNA in serum was correlated with age (P=0.0071), serum squamous cell carcinoma (SCC) antigen (P=0.0034), tumor size (P=0.0029), clinical stage (P<0.0001), deep stromal invasion (P=0.0048), resection margin positivity (P=0.0008), and pelvic lymph nodal metastasis (P=0.0040). CONCLUSION: The serum HPV 16 DNA in patients with cervical cancer was correlated with poor prognostic factors that need adjuvant treatment.
Carcinoma in Situ
;
Carcinoma, Squamous Cell
;
Cervix Uteri
;
DNA
;
Female
;
Human papillomavirus 16
;
Humans
;
Medical Records
;
Neoplasm Metastasis
;
Polymerase Chain Reaction
;
Uterine Cervical Neoplasms
6.Inhibition of cell growth and apoptosis in CaSki, cervical cancer cell line by arsenic compounds.
Jung Mi BYUN ; Dae Hoon JEONG ; Dae Sim LEE ; Joo Ran KIM ; Young Nam KIM ; Eun Jeong JEONG ; Moon Su SUNG ; Kyoung Bok LEE ; Ki Tae KIM
Korean Journal of Obstetrics and Gynecology 2010;53(7):616-625
OBJECTIVE: To compare inhibition of cell growth and apoptosis in human cervical cancer cell lines (CaSki) by paclitaxel, cisplatin, arsenic trioxide and tetraarsenic oxide. METHODS: Inhibition of cell growth was determined by the water-soluble tetrazolium salts (WSTs) -1 assay. For apoptosis analysis in CaSki cell line treated with single or combination of two agents, CaSki cell line treated with each agent was stained with annexin-V/PI and flow cytometry was performed. RESULTS: Progression of apoptosis in CaSki cell line treated with paclitaxel, cisplatin, arsenic trioxide, and tetraarsenic oxide was time dependent. Inhibition of cell growth in CaSki cell line by paclitaxel, cisplatin, arsenic trioxide, and tetraarsenic oxide was dose and time dependent. Especially, tetraarsenic oxide was more effective in inhibition of CaSki cell growth compared to arsenic trioxide. Group treated with combination of cisplatin and tetraarsenic oxide showed more progressive apoptosis compared to other combination group. CONCLUSION: Tetraarsenic oxide has more potent anti-tumor effects than other agents on CaSki cell line. We need to consider further study about antitumor effect of tetraarsenic oxide through clinical study.
Apoptosis
;
Arsenic
;
Arsenicals
;
Cell Line
;
Cisplatin
;
Flow Cytometry
;
Humans
;
Oxides
;
Paclitaxel
;
Tetrazolium Salts
;
Uterine Cervical Neoplasms
7.Ongoing outbreak of human adenovirus-associated acute respiratory illness in the Republic of Korea military, 2013 to 2018
Jae-Hoon KO ; Hyeong-taek WOO ; Hong Sang OH ; Song Mi MOON ; Joon Young CHOI ; Jeong Uk LIM ; Donghoon KIM ; Junsu BYUN ; Soon-Hwan KWON ; Daeyoun KANG ; Jung Yeon HEO ; Kyong Ran PECK
The Korean Journal of Internal Medicine 2021;36(1):205-213
Background/Aims:
Human adenovirus type 55 (HAdV-55), an emerging epidemic strain, has caused several large outbreaks in the Korean military since 2014, and HAdV-associated acute respiratory illness (HAdV-ARI) has been continuously reported thereafter.
Methods:
To evaluate the epidemiologic characteristics of HAdV-ARI in the Korean military, we analyzed respiratory virus polymerase chain reaction (RV-PCR) results, pneumonia surveillance results, and severe HAdV cases from all 14 Korean military hospitals from January 2013 to May 2018 and compared these data with nationwide RV surveillance data for the civilian population.
Results:
A total of 14,630 RV-PCRs was performed at military hospitals. HAdV (45.4%) was the most frequently detected RV, followed by human rhinovirus (12.3%) and influenza virus (6.3%). The percentage of the military positive for HAdV was significantly greater than the percentage of civilians positive for HAdV throughout the study period, with a large outbreak occurring during the winter to spring of 2014 to 2015. The outbreak continued until the end of the study, and non-seasonal detections increased over time. The reported number of pneumonia patients also increased during the outbreak. Case fatality rate was 0.075% overall but 15.6% in patients with respiratory failure. The proportion of severe patients did not change significantly during the study period.
Conclusions
A large HAdV outbreak is currently ongoing in the Korean military, with a trend away from seasonality, and HAdV-55 is likely the predominant strain. Persistent efforts to control the outbreak, HAdV type-specific surveillance, and vaccine development are required.