1.Death from Malignant Transformation of Untreated Mucinous Borderline Tumor: Case Report
Wooyoung JANG ; Tae Mo KANG ; Yehlim KIM ; Ah Rha WANG ; Hye Ryung YOON ; Kwang Soo KO ; Jinhyuk CHOI
Korean Journal of Legal Medicine 2022;46(3):90-93
Mucinous borderline tumors (MBT) of the ovary with mild to moderately atypical epithelial cells that produce mucin rarely recur and very rarely become malignant after surgery. Due to their low malignant potential and large tumor size, most cases are diagnosed in stage I and have a good prognosis. The authors reported a case of MBT, which had been left untreated after diagnosis, progressed to stage IV, and caused massive pleural effusion (>3,000 mL) resulting in death. Grossly, severe abdominal swelling, a huge multiloculated cystic mass in the left ovary, and a metastatic mucinous mass in the pleura and peritoneum were observed. Histological findings include gastrointestinal type epithelial cells with mucin secretion, degenerative and autolytic nuclei, and occasional infiltration of inflammatory cells. Because sufficient sections cannot be made according to the clinical pathology criteria in forensic autopsy, efficient decisions are required during autopsy for diagnosis.
3.SUVmax Predicts Disease Progression after Stereotactic Ablative Radiotherapy in Stage I Non-small Cell Lung Cancer
Yoo-Kang KWAK ; Hee Hyun PARK ; Kyu Hye CHOI ; Eun Young PARK ; Soo Yoon SUNG ; Sea-Won LEE ; Ji Hyun HONG ; Hyo Chun LEE ; Ie Ryung YOO ; Yeon Sil KIM
Cancer Research and Treatment 2020;52(1):85-97
Purpose:
Fluorodeoxyglucose positron emission tomography–computed tomography (PET-CT) is gaining evidence as a predictive factor in non-small cell lung cancer (NSCLC). Stereotactic ablative radiotherapy (SABR) is the standard treatment in early-stage NSCLC when a patient is unsuitable for surgery. We performed a study to assess the prognostic clinical significance of PET-CT after SABR in early-stage NSCLC.
Materials and Methods:
Seventy-six patients with stage I NSCLC treated with SABR were investigated. Total radiation dose ranged from 36 to 63 Gy in three to eight fractions depending on tumor location and size. Respiratory motion control was implemented at simulation and during treatment. PET-CT prior to SABR was performed in 66 patients (86.8%).
Results:
Median follow-up time was 32 months (range, 5 to 142 months). Local control rate at 1, 2, and 5 years were 95.9%, 92.8%, and 86.7%, respectively. Overall survival (OS) at 1, 2, and 5 years were 91.0%, 71.3%, and 52.1% respectively. Cause-specific survival at 1, 2, and 5 years were 98.6%, 93.1%, and 84.3% respectively. Tumor size and pre-SABR maximal standardized uptake value (SUVmax) demonstrated statistical significance in the Kaplan-Meier survival analyses with log-rank test. In multivariate analyses pre-SABR SUVmax remained statistically significant in correlation to OS (p=0.024; hazard ratio [HR], 3.2; 95% confidence interval [CI], 1.2 to 8.8) and with marginal significance in regards to regional progression-free survival (p=0.059; HR, 32.5; 95% CI, 2.6 to 402.5).
Conclusion
Pre-SABR SUVmax demonstrated a predictive power in statistical analyses. Tumors with SUVmax above 6 at diagnosis were associated with inferior outcomes.
4.The Expression of Epidermal Stem Cell Marker and SIRT1 in Atopic Dermatitis: A Discussion of Regenerative Potential
Jung Won SHIN ; Hye Ryung CHOI ; Kyung Mi NAM ; Seung Hye YANG ; Sung Ae KIM ; Hyun Jae JOE ; Young Ji HWANG ; Jung Im NA ; Chang Hun HUH ; Kyoung Chan PARK
Annals of Dermatology 2019;31(4):476-478
No abstract available.
Dermatitis, Atopic
;
Stem Cells
5.First detection and genetic characterization of porcine parvovirus 7 from Korean domestic pig farms
In Ohk OUH ; Seyeon PARK ; Ju Yeon LEE ; Jae Young SONG ; In Soo CHO ; Hye Ryung KIM ; Choi Kyu PARK
Journal of Veterinary Science 2018;19(6):855-857
Porcine parvovirus 7 (PPV7) was first detected in Korean pig farms in 2017. The detection rate of PPV7 DNA was 24.0% (30/125) in aborted pig fetuses and 74.9% (262/350) in finishing pigs, suggesting that PPV7 has circulated among Korean domestic pig farms. Phylogenetic analysis based on capsid protein amino acid sequences demonstrated that the nine isolated Korean strains (PPV-KA1-3 and PPV-KF1-6) were closely related to the previously reported USA and Chinese PPV7 strains. In addition, the Korean strains exhibit genetic diversity with both insertion and deletion mutations. This study contributes to the understanding of the molecular epidemiology of PPV7 in Korea.
Aborted Fetus
;
Agriculture
;
Amino Acid Sequence
;
Asian Continental Ancestry Group
;
Capsid Proteins
;
DNA
;
Fetus
;
Genetic Variation
;
Humans
;
Korea
;
Molecular Epidemiology
;
Parvovirus, Porcine
;
Sequence Deletion
;
Sus scrofa
;
Swine
6.Decreased Galectin-3 and -7 Expressions in Old-Aged Skin and Their Differential Expression in Skin Equivalents.
Jee Woong CHOI ; Kyung Mi NAM ; Hye Ryung CHOI ; Dong Hun LEE ; Chang Hun HUH ; Kyung Chan PARK
Annals of Dermatology 2018;30(3):375-378
No abstract available.
Galectin 3*
;
Skin*
7.Interactive Roles of Activin A in Epidermal Regeneration.
Jee Woong CHOI ; Kyung Mi NAM ; Hye Ryung CHOI ; Chang Hun HUH ; Kyung Chan PARK
Annals of Dermatology 2018;30(6):755-757
No abstract available.
Activins*
;
Regeneration*
8.The Effects of the 3-OH Group of Kaempferol on Interfollicular Epidermal Stem Cell Fate.
Je Byeong CHAE ; Hye Ryung CHOI ; Jung Won SHIN ; Jung Im NA ; Chang Hun HUH ; Kyoung Chan PARK
Annals of Dermatology 2018;30(6):694-700
BACKGROUND: Kaempferol (3,4′,5,7-tetrahydroxyflavone) is a flavonoid known to have a wide range of pharmacological activities. The 3-OH group in flavonoids has been reported to determine antioxidant activities. OBJECTIVE: We tested whether kaempferol can affect the expression of integrins and the stem cell fate of interfollicular epidermal stem cells. METHODS: Skin equivalent (SE) models were constructed, and the expression levels of stem cell markers and basement membrane-related antigens were tested. The immunohistochemical staining patterns of integrins, p63, and proliferating cell nuclear antigen (PCNA) were compared between kaempferol- and apigenin-treated SE models. Reverse transcription-polymerase chain reaction (RT-PCR) was used to evaluate the mRNA expression of integrins. RESULTS: Kaempferol increased the thickness of the epidermis when added to prepare SEs. In addition, the basal cells of kaempferol- treated SEs appeared more columnar. In the immunohistological study, the expression of integrins α6 and β1 and the numbers of p63- and PCNA-positive cells were markedly higher in the kaempferol-treated model. However, apigenin showed no effects on the formation of three-dimensional skin models. RT-PCR analysis also confirmed that kaempferol increased the expression of integrin α6 and integrin β1. CONCLUSION: Our findings indicated that kaempferol can increase the proliferative potential of basal epidermal cells by modulating the basement membrane. In other words, kaempferol can affect the fate of interfollicular epidermal stem cells by increasing the expression of both integrins α6 and β1. These effects, in particular, might be ascribed to the 3-OH group of kaempferol.
Apigenin
;
Basement Membrane
;
Epidermis
;
Extracellular Matrix
;
Flavonoids
;
Integrins
;
Proliferating Cell Nuclear Antigen
;
RNA, Messenger
;
Skin
;
Stem Cells*
9.Scar Sarcoidosis after Blepharoplasty: A Case Series.
Ji Young CHOI ; Ji Hye LEE ; Tae Hyung KIM ; Soo Chan KIM ; Mi Ryung ROH
Korean Journal of Dermatology 2017;55(7):460-464
Scar sarcoidosis is a cutaneous manifestation of sarcoidosis arising on old cutaneous scars. We report four cases of scar sarcoidosis after blepharoplasty. Lesions were seen to manifest as erythematous, firm, and non-tender nodules diffusely palpable along an upper eyelid scar. Histologically, numerous non-caseating granulomas with multinucleated giant cells were seen. No other evidence of systemic sarcoidosis was observed in any patient. Although rare, sarcoidosis may occur in an eyelid scar after a blepharoplasty. Therefore, scar sarcoidosis should be considered in the differential diagnosis in patients presenting with unusual nodules in blepharoplasty scars.
Blepharoplasty*
;
Cicatrix*
;
Diagnosis, Differential
;
Eyelids
;
Giant Cells
;
Granuloma
;
Humans
;
Sarcoidosis*
10.Vitamin D deficiency in children aged 6 to 12 years: single center's experience in Busan.
Young Eun ROH ; Bo Ryung KIM ; Won Bok CHOI ; Young Mi KIM ; Min Jung CHO ; Hye Young KIM ; Kyung Hee PARK ; Kwang Hoon KIM ; Peter CHUN ; Su Young KIM ; Min Jung KWAK
Annals of Pediatric Endocrinology & Metabolism 2016;21(3):149-154
PURPOSE: This study investigated the prevalence and risk factors associated with vitamin D deficiency in children. METHODS: We analyzed the medical records of 330 patients from the age of 6 to 12, who visited the endocrinology clinic of the Department of Pediatrics at Pusan National University Hospital, from September, 2013 to May, 2014. According to their serum 25-hydroxyvitamin D (25(OH)D) levels, the patients were grouped into either the deficiency group (25(OH)D<20 ng/mL), or the sufficiency group (25(OH)D≥20 ng/mL). The differences between the 2 groups were compared. RESULTS: There were 195 patients (59.1%) who had vitamin D deficiency. Their mean serum 25(OH)D level was 14.86±3.20 ng/mL. The differences in sex, age, and pubertal status between the 2 groups were not statistically significant. Weight standard deviation score (SDS), and body mass index SDS, were significantly higher in the vitamin D deficiency group (P=0.002 for each), compared to the sufficiency group. Compared with Autumn, both Spring (odds ratio [OR], 9.7; 95% confidence interval [CI], 4.3–22.0), and Winter (OR, 5.9; 95% CI, 3.5–10.0), were risk factors for vitamin D deficiency. In multiple logistic regression analysis, only seasonal differences have been confirmed to have an effect on vitamin D deficiency. CONCLUSION: Vitamin D deficiency in children aged 6 to 12 years is very common. Spring and Winter are the most important risk factors for vitamin D deficiency. We suggest that it is necessary to supplement the guideline for the vitamin D intake according to our situation.
Body Mass Index
;
Busan*
;
Child*
;
Endocrinology
;
Humans
;
Logistic Models
;
Medical Records
;
Pediatrics
;
Prevalence
;
Risk Factors
;
Seasons
;
Vitamin D Deficiency*
;
Vitamin D*
;
Vitamins*

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