1.Promoter-Specific Variants in NeuroD1 and H3K4me3 Coincident Regions and Clinical Outcomes of Small Cell Lung Cancer
Seung Soo YOO ; Sunwoong LEE ; Jin Eun CHOI ; Mi Jeong HONG ; Sook Kyung DO ; Jang Hyuck LEE ; Won Kee LEE ; Ji Eun PARK ; Yong Hoon LEE ; Sun Ha CHOI ; Hyewon SEO ; Jaehee LEE ; Shin Yup LEE ; Seung Ick CHA ; Chang Ho KIM ; Hyo-Gyoung KANG ; Jae Yong PARK
Journal of Korean Medical Science 2023;38(45):e381-
Background:
Neurogenic differentiation 1 (NeuroD1) is a representative small cell lung cancer (SCLC) transcription regulator involved in the carcinogenesis and behavior of SCLC.Histone modifications play an important role in transcription, and H3 lysine 4 trimethylation (H3K4me3) is primarily associated with promoter regions.
Methods:
We investigated the association between single nucleotide polymorphisms (SNPs) in NeuroD1 and H3K4me3 coincident regions, selected using ChIP sequencing (ChIP-seq), and the clinical outcomes of 261 patients with SCLC.
Results:
Among 230 SNPs, two were significantly associated with both the chemotherapy response and overall survival (OS) of patients with SCLC. RNF145 rs2043268A>G was associated with worse chemotherapy response and OS (under a recessive model, adjusted odds ratio [aOR], 0.50, 95% confidence interval [CI], 0.26–0.94, P = 0.031, and adjusted hazard ratio [aHR], 1.88, 95% CI, 1.38–2.57, P < 0.001). CINP rs762105A>G was also associated with worse chemotherapy response and OS (under a dominant model, aOR, 0.47, 95% CI, 0.23–0.99, P = 0.046, and aHR, 2.03, 95% CI, 1.47–2.82, P < 0.001). ChIP–quantitative polymerase chain reaction and luciferase assay confirmed that the two SNPs were located in the active promoter regions and influenced the promoter activity of each gene.
Conclusion
To summarize, among SNPs selected using ChIP-seq in promoter regions with high peaks in both NeuroD1 and H3K4me3, RNF145 rs2043268A>G and CINP rs762105A>G were associated with clinical outcomes in patients with SCLC and also affected the promoter activity of each gene.
2.A Rare Kinky Hair Disease: Menkes Syndrome
Ji Hyuck HONG ; Jun Hyuk CHO ; Sung Jin PARK ; Min Seok HAM ; Soo Hong SEO
Korean Journal of Dermatology 2022;60(1):68-69
no abstract available.
3.Purpura Associated with Onion Extract Consumption
Dongwon LEE ; Sung Jin PARK ; Min Seok HAM ; Ji Hyuck HONG ; Soo Hong SEO
Korean Journal of Dermatology 2020;58(3):217-219
4.Clinical Characteristics of Mild Coronavirus Disease 2019 Inpatients
Seung Wan HONG ; Ji Yeon LEE ; Miri HYUN ; Jae Seok PARK ; Jae Hyuck LEE ; Young Sung SUH ; Hyun Ah KIM ; DaeHyun KIM
Keimyung Medical Journal 2020;39(2):79-82
About 30~50% COVID-19 hospital inpatients is reported to have mild clinical presentation, and the clinical course is known to be good even in the older population. In order to compare the clinical symptoms of mild patients with COVID-19 infection by age, the clinical symptoms and laboratory results were analyzed by dividing mild patients admitted to a dedicated hospital into three groups: under the age of 64, 65-84, and above 85 years of age.There was no difference in gender ratio by age among 555 mild cases. Concomitant diseases with significant differences by age were hypertension, diabetes, stroke, and coronary artery disease.Among the symptoms, cough and sore throat were different by age, and cough was significantly higher in the group under 64 years of age. Among the symptoms, cough and sore throat were different by age, and cough was significantly higher in the group under 64 years of age.The white blood cell count (WBC), neutrophil count, monocyte, blood sugar, procalcitonin, and creatinine were significantly higher in the 85 years old or older group, and the hemoglobin, albumin, and glomerular filtration rate (GFR) were significantly lower in the 85 years old or older group.
5.Clinical Characteristics of Mild Coronavirus Disease 2019 Inpatients
Seung Wan HONG ; Ji Yeon LEE ; Miri HYUN ; Jae Seok PARK ; Jae Hyuck LEE ; Young Sung SUH ; Hyun Ah KIM ; DaeHyun KIM
Keimyung Medical Journal 2020;39(2):79-82
About 30~50% COVID-19 hospital inpatients is reported to have mild clinical presentation, and the clinical course is known to be good even in the older population. In order to compare the clinical symptoms of mild patients with COVID-19 infection by age, the clinical symptoms and laboratory results were analyzed by dividing mild patients admitted to a dedicated hospital into three groups: under the age of 64, 65-84, and above 85 years of age.There was no difference in gender ratio by age among 555 mild cases. Concomitant diseases with significant differences by age were hypertension, diabetes, stroke, and coronary artery disease.Among the symptoms, cough and sore throat were different by age, and cough was significantly higher in the group under 64 years of age. Among the symptoms, cough and sore throat were different by age, and cough was significantly higher in the group under 64 years of age.The white blood cell count (WBC), neutrophil count, monocyte, blood sugar, procalcitonin, and creatinine were significantly higher in the 85 years old or older group, and the hemoglobin, albumin, and glomerular filtration rate (GFR) were significantly lower in the 85 years old or older group.
7.Tissue-Clearing Technique and Cutaneous Nerve Biopsies: Quantification of the Intraepidermal Nerve-Fiber Density Using Active Clarity Technique-Pressure Related Efficient and Stable Transfer of Macromolecules Into Organs
Dai Hyun KIM ; Se Jeong LEE ; Eunsoo LEE ; Ji Hyuck HONG ; Soo Hong SEO ; Hyo Hyun AHN ; Byung Jo KIM ; Woong SUN ; Im Joo RHYU
Journal of Clinical Neurology 2019;15(4):537-544
BACKGROUND AND PURPOSE: Cutaneous nerve biopsies based on two-dimensional analysis have been regarded as a creditable assessment tool for diagnosing peripheral neuropathies. However, advancements in methodological imaging are required for the analysis of intact structures of peripheral nerve fibers. A tissue-clearing and labeling technique facilitates three-dimensional imaging of internal structures in unsectioned, whole biological tissues without excessive time or labor costs. We sought to establish whether a tissue-clearing and labeling technique could be used for the diagnostic evaluation of peripheral neuropathies. METHODS: Five healthy individuals and four patients with small-fiber neuropathy (SFN) and postherpetic neuralgia (PHN) were prospectively enrolled. The conventional methods of indirect immunofluorescence (IF) and bright-field immunohistochemistry (IHC) were adopted in addition to the tissue-clearing and labeling method called active clarity technique-pressure related efficient and stable transfer of macromolecules into organs (ACT-PRESTO) to quantify the intraepidermal nerve-fiber density (IENFD). RESULTS: The mean IENFD values obtained by IF, bright-field IHC, and ACT-PRESTO in the healthy control group were 6.54, 6.44, and 90.19 fibers/mm², respectively; the corresponding values in the patients with SFN were 1.99, 2.32, and 48.12 fibers/mm², respectively, and 3.06, 2.87, and 47.21 fibers/mm², respectively, in the patients with PHN. CONCLUSIONS: This study has shown that a tissue-clearing method provided not only rapid and highly reproducible three-dimensional images of cutaneous nerve fibers but also yielded reliable quantitative IENFD data. Quantification of the IENFD using a tissue-clearing and labeling technique is a promising way to improve conventional cutaneous nerve biopsies.
Biopsy
;
Fluorescent Antibody Technique, Indirect
;
Humans
;
Imaging, Three-Dimensional
;
Immunohistochemistry
;
Methods
;
Nerve Fibers
;
Neuralgia, Postherpetic
;
Peripheral Nerves
;
Peripheral Nervous System Diseases
;
Prospective Studies
8.Trends and Cut-Point Changes in Obesity Parameters by Age Groups Considering Metabolic Syndrome
Hyung Jun PARK ; Young Ho HONG ; Yun Jung CHO ; Ji Eun LEE ; Jae Moon YUN ; Hyuktae KWON ; Sang Hyuck KIM
Journal of Korean Medical Science 2018;33(7):e47-
BACKGROUND: Non-communicable diseases (NCDs) are an important issue worldwide. Obesity has a close relationship with NCDs. Various age-related changes should be considered when evaluating obesity. METHODS: National representative cohort data from the National Health Insurance Service National Sample Cohort from 2012 to 2013 were used. Sex-specific and age group-specific (10-year intervals) means for body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WtHR) were calculated. Optimal cut-points for obesity parameters were defined as the value predicting two or more components of metabolic syndrome (except WC). RESULTS: The mean value and optimal cut-point for BMI decreased with age for men. The mean BMI value for women increased with age, but optimal cut-points showed no remarkable difference. The mean WC of men increased with age, but the optimal cut-points were similar for age groups. For women, the mean value and optimal cut-point for WC increased with age. Regarding WtHR, the mean value and optimal cut-point increased with age for men and women. Differences across age groups were larger for women. CONCLUSION: The mean values of the obesity indices and the optimal cut-points were changed according to age groups. This study supports the necessity of applying age group-specific cut-points for the various obesity parameters.
Body Mass Index
;
Cohort Studies
;
Female
;
Humans
;
Male
;
National Health Programs
;
Obesity
;
Waist Circumference
9.Development of autoimmune hepatitis in a psoriasis patient without immunosuppressive therapy.
Wonyong JO ; Young Sun SUH ; Sang Il LEE ; Yun Hong CHEON ; Jeongmin HONG ; Sang Su LEE ; Ji Eun KIM ; Gyung Hyuck KO ; Hyun Ok KIM
Clinical and Molecular Hepatology 2017;23(2):184-187
We present a case of a 65-year-old man with psoriasis who developed autoimmune hepatitis (AIH) without receiving immunosuppressive therapy with either anti-tumor necrosis factor-α or methotrexate. The AIH had completely resolved at 2 months after prednisolone and azathioprine therapy. This case confirms the need to consider AIH in psoriasis patients who experience new elevations in liver enzymes. To our knowledge, this is first description of the development of AIH in an immunosuppressant-naïve patient with psoriasis.
Aged
;
Azathioprine
;
Hepatitis, Autoimmune*
;
Humans
;
Liver
;
Methotrexate
;
Necrosis
;
Prednisolone
;
Psoriasis*
10.Feasibility and Efficacy of Eribulin Mesilate in Korean Patients with Metastatic Breast Cancer: Korean Multi-center Phase IV Clinical Study Results.
Yeon Hee PARK ; Tae Yong KIM ; Young Hyuck IM ; Keun Seok LEE ; In Hae PARK ; Joohyuk SOHN ; Soo Hyeon LEE ; Seock Ah IM ; Jee Hyun KIM ; Se Hyun KIM ; Soo Jung LEE ; Su Jin KOH ; Ki Hyeong LEE ; Yoon Ji CHOI ; Eun Kyung CHO ; Suee LEE ; Seok Yun KANG ; Jae Hong SEO ; Sung Bae KIM ; Kyung Hae JUNG
Cancer Research and Treatment 2017;49(2):423-429
PURPOSE: Eribulin mesilate was approved for the treatment of patients with locally advanced or metastatic breast cancer (MBC), who had received at least two chemotherapeutic regimens, including anthracycline and taxane. On the other hand, the efficacy and safety information of eribulin in Korean patients is limited by the lack of clinical trials. MATERIALS AND METHODS: In this multicenter, open-label, single-arm, phase IV study, locally advanced or MBC patients were enrolled between June 2013 and April 2014 from 14 centers in Korea. One point four mg/m2 dose of eribulin was administered on days 1 and 8 of every 21 days. The primary endpoint was the frequency and intensity of the treatment emergent adverse event. The secondary endpoint was the disease control rate, which included the rate of complete responses, partial responses, and stable disease. RESULTS: A total of 101 patients received at least one dose of eribulin and were included in the safety set. The patients received a total of 543 treatment cycles, with a median of three cycles (range, 1 to 31 cycles). The most common adverse event was neutropenia (91.1% of patients, 48.3% of cycles). The frequent non-hematological adverse events included alopecia, decrease in appetite, fatigue/asthenia, and myalgia/arthralgia. The peripheral neuropathy of any grade occurred in 27 patients (26.7%), including grade 3 in two patients. Disease control rate was 52.7% and 51.3% of patients in the full analysis set and per-protocol set, respectively. CONCLUSION: This study demonstrated the feasible safety profile and activity of eribulin in Korean patients with MBC.
Alopecia
;
Appetite
;
Breast Neoplasms*
;
Breast*
;
Clinical Study*
;
Hand
;
Humans
;
Korea
;
Mesylates*
;
Neoplasm Metastasis
;
Neutropenia
;
Peripheral Nervous System Diseases

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