1.PAIVS: prediction of avian influenza virus subtype
Hyeon-Chun PARK ; Juyoun SHIN ; Sung-Min CHO ; Shinseok KANG ; Yeun-Jun CHUNG ; Seung-Hyun JUNG
Genomics & Informatics 2020;18(1):e5-
Highly pathogenic avian influenza (HPAI) viruses have caused severe respiratory disease and death in poultry and human beings. Although most of the avian influenza viruses (AIVs) are of low pathogenicity and cause mild infections in birds, some subtypes including hemagglutinin H5 and H7 subtype cause HPAI. Therefore, sensitive and accurate subtyping of AIV is important to prepare and prevent for the spread of HPAI. Next-generation sequencing (NGS) can analyze the full-length sequence information of entire AIV genome at once, so this technology is becoming a more common in detecting AIVs and predicting subtypes. However, an analysis pipeline of NGS-based AIV sequencing data, including AIV subtyping, has not yet been established. Here, in order to support the pre-processing of NGS data and its interpretation, we developed a user-friendly tool, named prediction of avian influenza virus subtype (PAIVS). PAIVS has multiple functions that support the pre-processing of NGS data, reference-guided AIV subtyping, de novo assembly, variant calling and identifying the closest full-length sequences by BLAST, and provide the graphical summary to the end users.
2.PAIVS: prediction of avian influenza virus subtype
Hyeon-Chun PARK ; Juyoun SHIN ; Sung-Min CHO ; Shinseok KANG ; Yeun-Jun CHUNG ; Seung-Hyun JUNG
Genomics & Informatics 2020;18(1):e5-
Highly pathogenic avian influenza (HPAI) viruses have caused severe respiratory disease and death in poultry and human beings. Although most of the avian influenza viruses (AIVs) are of low pathogenicity and cause mild infections in birds, some subtypes including hemagglutinin H5 and H7 subtype cause HPAI. Therefore, sensitive and accurate subtyping of AIV is important to prepare and prevent for the spread of HPAI. Next-generation sequencing (NGS) can analyze the full-length sequence information of entire AIV genome at once, so this technology is becoming a more common in detecting AIVs and predicting subtypes. However, an analysis pipeline of NGS-based AIV sequencing data, including AIV subtyping, has not yet been established. Here, in order to support the pre-processing of NGS data and its interpretation, we developed a user-friendly tool, named prediction of avian influenza virus subtype (PAIVS). PAIVS has multiple functions that support the pre-processing of NGS data, reference-guided AIV subtyping, de novo assembly, variant calling and identifying the closest full-length sequences by BLAST, and provide the graphical summary to the end users.
3.Mutational signatures and chromosome alteration profiles of squamous cell carcinomas of the vulva
Mi Ryung HAN ; Sun SHIN ; Hyeon Chun PARK ; Min Sung KIM ; Sung Hak LEE ; Seung Hyun JUNG ; Sang Yong SONG ; Sug Hyung LEE ; Yeun Jun CHUNG
Experimental & Molecular Medicine 2018;50(2):e442-
Vulvar squamous cell carcinoma (SCC) consists of two different etiologic categories: human papilloma virus (HPV)-associated (HPV (+)) and HPV-non-associated (HPV (−)). There have been no genome-wide studies on the genetic alterations of vulvar SCCs or on the differences between HPV (+) and HPV (−) vulvar SCCs. In this study, we performed whole-exome sequencing and copy number profiling of 6 HPV (+) and 9 HPV (−) vulvar SCCs and found known mutations (TP53, CDKN2A and HRAS) and copy number alterations (CNAs) (7p and 8q gains and 2q loss) in HPV (−) SCCs. In HPV (+), we found novel mutations in PIK3CA, BRCA2 and FBXW7 that had not been reported in vulvar SCCs. HPV (−) SCCs exhibited more mutational loads (numbers of nonsilent mutations and driver mutations) than HPV (+) SCCs, but the CNA loads and mutation signatures between HPV (+) and HPV (−) SCCs did not differ. Of note, 40% and 40% of the 15 vulvar SCCs harbored PIK3CA and FAT1 alterations, respectively. In addition, we found that the SCCs harbored kataegis (a localized hypermutation) in 2 HPV (+) SCCs and copy-neutral losses of heterozygosity in 4 (one HPV (+) and 3 HPV (−)) SCCs. Our data indicate that HPV (+) and HPV (−) vulvar SCCs may have different mutation and CNA profiles but that there are genomic features common to SCCs. Our data provide useful information for both HPV (+) and HPV (−) vulvar SCCs and may aid in the development of clinical treatment strategies.
4.Knowledge of HPV and Surgery among Women Who Underwent Cervical Conization: A Korean Multi-Center Study.
So Yeun JUN ; Se Ik KIM ; Myong Cheol LIM ; Jung Yun LEE ; San Hui LEE ; Yong Jung SONG ; Kyoung Chul CHUN ; Jae Weon KIM ; Sang Yoon PARK
Yonsei Medical Journal 2016;57(5):1222-1229
PURPOSE: Human papillomavirus (HPV) infection is a well-known cause of cervical cancer, which, along with its precursors, can be diagnosed and treated with cervical conization (CC). This study aimed to assess HPV- and procedure-related knowledge among women who had undergone CC. MATERIALS AND METHODS: Between February and May 2014, consecutive women who had undergone CC at five different educational hospitals were recruited. All patients had undergone a loop electrosurgical excision procedure as the method of CC. A survey was conducted with a self-developed, 29-item questionnaire, measuring knowledge related to HPV and CC. We analyzed the responses of 160 patients who completed the questionnaire. RESULTS: Mean total knowledge scores (±standard deviation) for HPV and CC were 5.2±3.0 of a possible 13.0 and 8.3±4.2 of a possible 16.0, respectively. While 73% of the patients knew that HPV is the main cause of cervical cancer, only 44% knew that HPV is sexually transmitted. The purpose of CC was correctly identified by 71% of the patients. However, 35% failed to indicate the anatomical area resected at the time of CC in the schematic diagram. Women who were younger (p<0.001), had higher education level (p<0.001), and higher family income (p=0.008) had higher knowledge scores. In contrast, neither interval from CC to survey nor disease severity were associated with total knowledge score. CONCLUSION: The level of knowledge related to HPV and CC was unexpectedly low in women who had undergone CC. Intuitive educational resources may improve this knowledge, and further cohort studies are warranted.
Adult
;
Cervix Uteri/*pathology/*virology
;
*Conization
;
Female
;
*Health Knowledge, Attitudes, Practice
;
Humans
;
Middle Aged
;
Papillomaviridae/*physiology
;
Republic of Korea
;
Sexual Behavior
;
*Surveys and Questionnaires
;
Uterine Cervical Neoplasms/virology
;
Young Adult
5.Association between Intracellular Infectious Agents and Schizophrenia.
Mi Hee PARK ; Young Joon KWON ; Hee Yeun JEONG ; Hwa Young LEE ; Young HWANGBO ; Hee Jung YOON ; Se Hoon SHIM
Clinical Psychopharmacology and Neuroscience 2012;10(2):117-123
OBJECTIVE: A number of studies have reported association between Toxoplasma gondii (T. gondii) and Chlamydia infection and the risk of schizophrenia. The aim of the present study was to compare the prevalence of T. gondii and Chlamydia infection between the schizophrenia and normal control subjects and to compare the clinical features between seropositive and seronegative schizophrenia patients. METHODS: The rate of serum reactivity to T. gondii, Chlamydia trachomatis (C. trachomatis), Chlamydia pneumonia in 96 schizophrenia and 50 control subjects was investigated using enzyme-linked immunosorbent assay and indirect fluorescent antibody technique. The clinical symptoms of the schizophrenia patients were scored with Positive and Negative Syndrome Scale and a comparative analysis was carried out. RESULTS: A significant positive association between immunoglobulin G (IgG) antibodies to T. gondii and C. trachomatis in schizophrenia was found, and the odds ratio of schizophrenia associated with IgG antibody was found to be 3.22 and 2.86, respectively. The Toxoplasma-seropositive schizophrenia patient had higher score on the negative subscale N1 and N7 and general psychopathology subscale G13, while C. trachomatis-seropositive schizophrenia patient had higher score on the general psychopathology subscale G10. CONCLUSION: The results from the present study suggest significant association between T. gondii, C. trachomatis infection and schizophrenia. In future, further studies are needed to elucidate the correlation between the two types of infection and schizophrenia.
Antibodies
;
Chlamydia
;
Chlamydia Infections
;
Chlamydia trachomatis
;
Chlamydophila pneumoniae
;
Enzyme-Linked Immunosorbent Assay
;
Fluorescent Antibody Technique, Indirect
;
Humans
;
Immunoglobulin G
;
Odds Ratio
;
Pneumonia
;
Prevalence
;
Psychopathology
;
Schizophrenia
;
Toxoplasma
6.Isolated Double-Chambered Right Ventricle in a Young Adult.
Jung Gil PARK ; Han Jun RYU ; Yeun Su JUNG ; Ki Ju KIM ; Bong Ryeol LEE ; Byung Chun JUNG ; Hyunjae KANG
Korean Circulation Journal 2011;41(5):272-275
Double-chambered right ventricle (DCRV) is a rare congenital heart disorder in which the right ventricle is divided by an anomalous muscle bundle into a high pressure inlet portion and a low pressure outlet portion. We report a case of isolated DCRV without symptoms in adulthood, diagnosed through echocardiography, cardiac catheterization and cardiac magnetic resonance imaging.
Bays
;
Cardiac Catheterization
;
Cardiac Catheters
;
Echocardiography
;
Heart
;
Heart Ventricles
;
Humans
;
Magnetic Resonance Imaging
;
Muscles
;
Young Adult
7.Association of Educational Level and Socioeconomic Status with Glucose Metabolism.
Young Sil EOM ; Sun Mee YANG ; Pyung Chun OH ; Jung Hyun LEE ; Ki Young LEE ; Yeun Sun KIM ; Sihoon LEE ; Jung Soo IM ; Jun YIM ; Dae Kyu OH ; Moon Suk NAM ; Ie Byung PARK
Korean Diabetes Journal 2008;32(4):377-385
BACKGROUND: The objective of the present study was to examine the association of educational level and socioeconomic status with glucose metabolism including prediabetes. METHODS: This cross-sectional study subjects were 882 (mean age: 51.0 +/- 13.4 years, M:F = 241:641) without diabetes, aged more than 20 years and residing in Whasu 2 dong in Incheon. We classified them into three levels according to their educational level: primary (illiterate or up to elementary school), secondary (middle school or high school) and tertiary (university), and into three levels according to their socioeconomic status by self reported questionnaire: low, middle and high. Subjects were diagnosed as three groups (normal, prediabetes and diabetes) by American Diabetes Association criteria using 75 g oral glucose tolerance test. The association of educational level and socioeconomic status with glucose metabolism was analyzed. RESULTS: The number of normal group was 300 (34.0%), that of prediabetes was 470 (53.3%) and that of diabetes was 112 (12.7%). In women, the proportion of primary educational group was larger than that of secondary educational group in diabetes (Odds ratio [OR] = 1.88; 95% confidence interval [CI]: 1.01-3.51) and larger than that of tertiary educational group in prediabetes ([OR] = 2.00; [CI]: 1.06-3.78). But socioeconomic status did not have the statistical association with glucose metabolism in women. Also both educational level and socioeconomic status had no statistical association with glucose metabolism in men. CONCLUSIONS: The proportion of low educational level is larger in prediabetes and diabetes compared with normal group in women.
Aged
;
Cross-Sectional Studies
;
Female
;
Glucose
;
Glucose Tolerance Test
;
Humans
;
Prediabetic State
;
Self Report
;
Social Class
8.Effectiveness of Fentanyl Transdermal Patch (Fentanyl-TTS, Durogegic(R)) for Radiotherapy Induced Pain and Cancer Pain: Multi-center Trial.
Seong Soo SHIN ; Seung Jae HUH ; Eun Kyung CHOI ; Jong Hoon KIM ; Seung Do AHN ; Sang Wook LEE ; Yeun Sil KIM ; Kyu Chan LEE ; Chang Geol LEE ; John JK LOH ; Mison CHUN ; Young Teak OH ; Ok Bae KIM ; Jin Hee KIM ; Chul Yong KIM ; Dae Sik YANG ; Woo Yoon PARK ; Bo Kyoung KIM ; Heung Lae CHO ; Ki Jung AHN ; Jong Young LEE ; Seon Min YUN ; Yong Chan AHN ; Do Hoon LIM ; Won PARK ; Ki Moon KANG ; Hong Gyun WU ; Hyun Soo SHIN ; Seong Soon JANG ; Eun Seog KIM ; Byung Sik NA ; Woong Ki JUNG ; Sung Ja AHN ; Taek Keun NAM ; Yong Ho KIM ; MI Hee SONG ; Sang Mo YUN ; Chul Seung KAY ; Ji Won YEI ; Suk Won PARK ; Seon Woo KIM
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2006;24(4):263-271
PURPOSE: To evaluate the effectiveness and safety of fentanyl-TTS in the management of radiotherapy induced acute pain and cancer pain treated with radiotherapy. MATERIALS AND METHODS: Our study was open labelled prospective phase IV multi-center study. the study population included patients with more 4 numeric rating scale(NRS) score pain although managed with other analgesics or more than 6 NRS score pain without analgesics. Patients divided into two groups; patients with radiotherapy induced pain (Group A) and patients with cancer pain treated with radiotherapy (Group B). All patients received 25 ug/hr of fentanyl transdermal patch. Primary end point was pain relief; second end points were change in patient quality of life, a degree of satisfaction for patients and clinician, side effects. RESULTS: Between March 2005 and June 2005, 312 patients from 26 participating institutes were registered, but 249 patients completed this study. Total number of patients in each group was 185 in Group A, 64 in Group B. Mean age was 60 years and male to female ratio was 76:24. Severe pain NRS score at 2 weeks after the application of fentanyl was decreased from 7.03 to 4.01, p=0.003. There was a significant improvement in insomnia, social functioning, and quality of life. A degree of satisfaction for patients and clinician was very high. The most common reasons of patients' satisfactions was good pain control. Ninety six patients reported side effect. Nausea was the most common side effect. There was no serious side effect. CONCLUSION: Fentanyl-TTS was effective in both relieving pain with good tolerability and improving the quality of life for patients with radiotherapy induced acute pain and cancer pain treated with radiotherapy. The satisfaction of the patients and doctors was good. There was no major side effect.
Academies and Institutes
;
Acute Pain
;
Analgesics
;
Female
;
Fentanyl*
;
Humans
;
Male
;
Nausea
;
Prospective Studies
;
Quality of Life
;
Radiotherapy*
;
Sleep Initiation and Maintenance Disorders
;
Transdermal Patch*
9.Bone Mineral Density in Postsurgical Thyroxine Replacement.
Byung Chun KIM ; Hye Won RO ; Yeun Sung JUNG ; In Sang YOON ; Soon Ju JEONG ; Min Ho PARK ; Jung Han YOON ; Young Jong JEGAL
Korean Journal of Endocrine Surgery 2006;6(1):1-5
PURPOSE: Bone turnover is increased in patients suffering with hyperthyroidism, and this results in osteoporosis. Especially after total thyroidectomy for the treatment of thyroid papillary cancer, it is necessary to pay attention to osteoporosis because we must treat these patients with suppressive thyroxine therapy. METHODS: Among the patients who underwent endocrine surgery of Chonnam National University, 110 cases had taken thyroxine for more than one year. We analyzed them on the basis of their medical record. The study consisted of women between 45 and 74 years of age who were treated with thyroxine for more than one year, who had total thyroidectomy performed for thyroid papillary carcinoma and who taken thyroxine for 12~142 months (mean: 53 months). We measured the bone mineral density at the lumbar spine and the femoral neck with using dual energy X-ray absorptiometry. RESULTS: The bone mineral density of the lumbar spine and femur neck was significantly reduced with the increasing the duration of thyroxine medication. Yet this was not significant after adjusting by age. There was correlation between the TSH levels and bone mineral densities. CONCLUSION: After total thyroidectomy, it may be necessary to evaluate the bone mineral density of the patients who were treated with suppressive thyroxine and also to warn them about osteoporosis.
Absorptiometry, Photon
;
Bone Density*
;
Bone Remodeling
;
Carcinoma, Papillary
;
Female
;
Femur Neck
;
Humans
;
Hyperthyroidism
;
Jeollanam-do
;
Medical Records
;
Osteoporosis
;
Spine
;
Thyroid Gland
;
Thyroid Neoplasms
;
Thyroidectomy
;
Thyroxine*
10.Induction of Aspergillus fumigatus Specific T Cells using Dendritic Cells Pulsed with Asp f16 Recombinant Protein in vitro.
Hee Yeun WON ; Eun Kyung KIM ; Hyun Jung SOHN ; Wan Shik SHIN ; Woo Sung MIN ; Chun Choo KIM ; Tai Gyu KIM
Journal of Bacteriology and Virology 2005;35(4):307-314
Invasive aspergillosis is the most common Aspergillus fumigatus infection in immunocompromised patients. Although the treatment of the invasive aspergillosis has been mostly relied on antifungal agents, there still exists the need for more effective therapy. To develop cellular immunotherapy specific for Aspergillus fumigatus, we generated specific T cells using dendritic cells (DCs) pulsed with an Aspergillus fumigatus derived recombinant protein in vitro and examined their functions. The f16. p2+3 region containing the conserved region of Asp f16 gene was cloned from Aspergillus fumigatus and the recombinant protein was produced in E. coli. IFN-gamma secretion from the T cells stimulated with recombinant f16. p2+3 (rf16. p2+3) was measured by enzyme linked immunospot (ELISPOT) assay and the cytolytic activity of the stimulated T cells by 51Cr release assay. The number of IFN-gamma secreting cells were significantly increased in the peripheral blood mononuclear cells (PBMCs) stimulated with the rf16. p2+3 pulsed DCs (31+/-12 spots/10(4) cells), compared to that of PBMCs directly stimulated with rf16. p2+3 (83+/-15 spots/10(6) cells). IFN-gamma ELISPOT assay using purified CD4+ or CD8+ as responder cells showed that CD4+ T cells (43 spots/10(4) cells) mainly produced IFN-gamma compared with CD8+ T cells (7 spots/10(4) cells). Furthermore, helper T cells specific for rf16. p2+3 could be efficiently generated by the stimulation with DCs for two weeks. However, cytotoxic T lymphocyte activity was not induced. Our results suggest that the rf16. p2+3 protein could be used for the generation of helper T cells in vitro.
Antifungal Agents
;
Aspergillosis
;
Aspergillus fumigatus*
;
Aspergillus*
;
Clone Cells
;
Dendritic Cells*
;
Enzyme-Linked Immunospot Assay
;
Immunocompromised Host
;
Immunotherapy
;
Lymphocytes
;
T-Lymphocytes*
;
T-Lymphocytes, Helper-Inducer
;
Viperidae*

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