1.Comparative Analysis of Anticancer and Antibacterial Activities among Seven Trametes Species
Ha Thi Kim NGUYEN ; Jiwon LEE ; Yejin PARK ; Hyon Jin PARK ; Soon Kil AHN ; Jae Kwang KIM ; Dong-Ku KANG ; Minkyeong KIM ; Chorong AHN ; Changmu KIM ; Jaehyuk CHOI
Mycobiology 2023;51(4):256-263
Species in the genus Trametes (Basidiomycota, Polyporales) have been used in natural medicine for a long time. Many studies reported that mycelia or fruiting bodies of Trametes spp. exhibited effects of antioxidant, anti-inflammatory, anticancer, and antimicrobial activities.However, comparative analysis in this genus is scarce due to limitation of morphological identification and the sample number. In this study, the 19 strains of seven Trametes species were chosen to generate a five-gene-based phylogeny with the 31 global references. In addition, 39 culture extracts were prepared for 13 strains to test for anticancer and antibacterial activities. Strong anticancer activities were found in several extracts from T. hirsuta and T. suaveolens. Anticancer activities of T. suaveolens, T. cf. junipericola and T. trogii were first described here. The antibacterial ability of T. versicolor and T. hirsuta extracts has been confirmed. The antibacterial activities of T. suaveolens have been reported at the first time in this study. These results suggest an efficient application of the genus Trametes as the drug resources especially for anticancer agents.
2.Influence of Concurrent and Adjuvant Temozolomide on Health-Related Quality of Life of Patients with Grade III Gliomas: A Secondary Analysis of a Randomized Clinical Trial (KNOG-1101 Study)
Grace S. AHN ; Kihwan HWANG ; Tae Min KIM ; Chul Kee PARK ; Jong Hee CHANG ; Tae-Young JUNG ; Jin Hee KIM ; Do-Hyun NAM ; Se-Hyuk KIM ; Heon YOO ; Yong-Kil HONG ; Eun-Young KIM ; Dong-Eun LEE ; Jungnam JOO ; Yu Jung KIM ; Gheeyoung CHOE ; Byung Se CHOI ; Seok-Gu KANG ; Jeong Hoon KIM ; Chae-Yong KIM
Cancer Research and Treatment 2022;54(2):396-405
Purpose:
The KNOG-1101 study showed improved 2-year PFS with temozolomide during and after radiotherapy compared to radiotherapy alone for patients with anaplastic gliomas. This trial investigates the effect of concurrent and adjuvant temozolomide on health-related quality of life (HRQoL).
Materials and Methods:
In this randomized, open-label, phase II trial, 90 patients with World Health Organization grade III glioma were enrolled across multiple centers in South Korea between March 2012 to February 2015 and followed up through 2017. The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire 30 (EORTC QLQ-C30) and 20-item EORTC QLQ-Brain Neoplasm (QLQ-BN20) were used to compare HRQoL between patients assigned to concurrent chemoradiotherapy with temozolomide followed by 6 cycles of adjuvant temozolomide (arm A) and radiotherapy (RT) alone (arm B).
Results:
Of the 90 patients in the study, 84 patients (93.3%) completed the baseline HRQoL questionnaire. Emotional functioning, fatigue, nausea and vomiting, dyspnea, constipation, appetite loss, diarrhea, seizures, itchy skin, drowsiness, hair loss, and bladder control were not affected by the addition of temozolomide. All other items did not differ significantly between arm A and arm B throughout treatment. Global health status particularly stayed consistent at the end of adjuvant temozolomide (p=0.47) and at the end of RT (p=0.33).
Conclusion
The addition of concurrent and adjuvant temozolomide did not show negative influence on HRQoL with improvement of progression-free survival for patients with anaplastic gliomas. The absence of systematic and clinically relevant changes in HRQoL suggests that an overall long-term net clinical benefit exists for concurrent and adjuvant temozolomide.
3.Concurrent Chemoradiotherapy with Temozolomide Followed by Adjuvant Temozolomide for Newly Diagnosed Glioblastoma Patients: A Retrospective Multicenter Observation Study in Korea.
Byung Sup KIM ; Ho Jun SEOL ; Do Hyun NAM ; Chul Kee PARK ; Il Han KIM ; Tae Min KIM ; Jeong Hoon KIM ; Young Hyun CHO ; Sang Min YOON ; Jong Hee CHANG ; Seok Gu KANG ; Eui Hyun KIM ; Chang Ok SUH ; Tae Young JUNG ; Kyung Hwa LEE ; Chae Yong KIM ; In Ah KIM ; Chang Ki HONG ; Heon YOO ; Jin Hee KIM ; Shin Hyuk KANG ; Min Kyu KANG ; Eun Young KIM ; Sun Hwan KIM ; Dong Sup CHUNG ; Sun Chul HWANG ; Joon Ho SONG ; Sung Jin CHO ; Sun Il LEE ; Youn Soo LEE ; Kook Jin AHN ; Se Hoon KIM ; Do Hun LIM ; Ho Shin GWAK ; Se Hoon LEE ; Yong Kil HONG
Cancer Research and Treatment 2017;49(1):193-203
PURPOSE: The purpose of this study was to investigate the feasibility and survival benefits of combined treatment with radiotherapy and adjuvant temozolomide (TMZ) in a Korean sample. MATERIALS AND METHODS: A total of 750 Korean patients with histologically confirmed glioblastoma multiforme, who received concurrent chemoradiotherapy with TMZ (CCRT) and adjuvant TMZ from January 2006 until June 2011, were analyzed retrospectively. RESULTS: After the first operation, a gross total resection (GTR), subtotal resection (STR), partial resection (PR), biopsy alone were achieved in 388 (51.7%), 159 (21.2%), 96 (12.8%), and 107 (14.3%) patients, respectively. The methylation status of O6-methylguanine-DNA methyltransferase (MGMT) was reviewed retrospectively in 217 patients. The median follow-up period was 16.3 months and the median overall survival (OS) was 17.5 months. The actuarial survival rates at the 1-, 3-, and 5-year OS were 72.1%, 21.0%, and 9.0%, respectively. The median progression-free survival (PFS) was 10.1 months, and the actuarial PFS at 1-, 3-, and 5-year PFS were 42.2%, 13.0%, and 7.8%, respectively. The patients who received GTR showed a significantly longer OS and PFS than those who received STR, PR, or biopsy alone, regardless of the methylation status of the MGMT promoter. Patients with a methylated MGMT promoter also showed a significantly longer OS and PFS than those with an unmethylated MGMT promoter. Patients who received more than six cycles of adjuvant TMZ had a longer OS and PFS than those who received six or fewer cycles. Hematologic toxicity of grade 3 or 4 was observed in 8.4% of patients during the CCRT period and in 10.2% during the adjuvant TMZ period. CONCLUSION: Patients treated with CCRT followed by adjuvant TMZ had more favorable survival rates and tolerable toxicity than those who did not undergo this treatment.
Biopsy
;
Chemoradiotherapy*
;
Disease-Free Survival
;
Follow-Up Studies
;
Glioblastoma*
;
Humans
;
Korea*
;
Methylation
;
Radiotherapy
;
Retrospective Studies*
;
Survival Rate
4.The Interaction Between Prenatal Exposure to Home Renovation and Reactive Oxygen Species Genes in Cord Blood IgE Response is Modified by Maternal Atopy.
Jinho YU ; Kangmo AHN ; Youn Ho SHIN ; Kyung Won KIM ; Dong In SUH ; Ho Sung YU ; Mi Jin KANG ; Kyung Shin LEE ; Seo Ah HONG ; Kil Yong CHOI ; Eun LEE ; Song I YANG ; Ju Hee SEO ; Byoung Ju KIM ; Hyo Bin KIM ; So Yeon LEE ; Suk Joo CHOI ; Soo Young OH ; Ja Young KWON ; Kyung Ju LEE ; Hee Jin PARK ; Pil Ryang LEE ; Hye Sung WON ; Soo Jong HONG
Allergy, Asthma & Immunology Research 2016;8(1):41-48
PURPOSE: Although home renovation exposure during childhood has been identified as a risk factor for the development of allergy, there is limited information on the association between prenatal exposure to home renovation and cord blood (CB) IgE response. The aims of this study were to identify the effect of prenatal exposure to home renovation on CB IgE levels, and to investigate whether this exposure interacts with neonatal genes and whether the effect can be modified by maternal atopy. METHODS: This study included 1,002 mother-neonate pairs from the COhort for Childhood Origin of Asthma and allergic diseases (COCOA). Prenatal environmental factors were collected using a questionnaire. The levels of CB IgE were measured by the ImmunoCAP system, and DNA was extracted from CB. RESULTS: Exposure to home renovation during the prenatal period was associated with significantly higher levels of CB IgE only in neonates from atopic mothers, and the effect of renovation exposure on CB IgE levels persisted from 31 months before birth. Furthermore, prenatal exposure to home renovation increased the risk of CB IgE response interacting with polymorphisms of NRF2 and GSTP1 genes only in neonates from atopic mothers. CONCLUSIONS: Maternal atopy modified the effect of prenatal exposure to home renovation on CB serum IgE response as well as the interaction between the exposure and neonatal genes involved in the oxidative stress pathway. These findings suggest that the genetically susceptible offspring of atopic mothers may be more vulnerable to the effect of prenatal exposure to home renovation on the development of allergy.
Asthma
;
Cohort Studies
;
DNA
;
Fetal Blood*
;
Gene-Environment Interaction
;
Humans
;
Hypersensitivity
;
Immunoglobulin E*
;
Infant, Newborn
;
Mothers
;
Oxidative Stress
;
Parturition
;
Polymorphism, Single Nucleotide
;
Reactive Oxygen Species*
;
Risk Factors
5.Prenatal Particulate Matter/Tobacco Smoke Increases Infants' Respiratory Infections: COCOA Study.
Song I YANG ; Byoung Ju KIM ; So Yeon LEE ; Hyo Bin KIM ; Cheol Min LEE ; Jinho YU ; Mi Jin KANG ; Ho Sung YU ; Eun LEE ; Young Ho JUNG ; Hyung Young KIM ; Ju Hee SEO ; Ji Won KWON ; Dae Jin SONG ; Gwangcheon JANG ; Woo Kyung KIM ; Jung Yeon SHIM ; Soo Young LEE ; Hyeon Jong YANG ; Dong In SUH ; Seo Ah HONG ; Kil Yong CHOI ; Youn Ho SHIN ; Kangmo AHN ; Kyung Won KIM ; Eun Jin KIM ; Soo Jong HONG
Allergy, Asthma & Immunology Research 2015;7(6):573-582
PURPOSE: To investigate whether prenatal exposure to indoor fine particulate matter (PM2.5) and environmental tobacco smoke (ETS) affects susceptibility to respiratory tract infections (RTIs) in infancy, to compare their effects between prenatal and postnatal exposure, and to determine whether genetic factors modify these environmental effects. METHODS: The study population consisted of 307 birth cohort infants. A diagnosis of RTIs was based on parental report of a physician's diagnosis. Indoor PM2.5 and ETS levels were measured during pregnancy and infancy. TaqMan was used for genotyping of nuclear factor erythroid 2-related factor (Nrf2) (rs6726395), glutathione-S-transferase-pi (GSTP) 1 (rs1695), and glutathione-S-transferase-mu (GSTM) 1. Microarrays were used for genome-wide methylation analysis. RESULTS: Prenatal exposure to indoor PM2.5 increased the susceptibility of lower RTIs (LRTIs) in infancy (adjusted odds ratio [aOR]=2.11). In terms of combined exposure to both indoor PM2.5 and ETS, prenatal exposure to both pollutants increased susceptibility to LRTIs (aOR=6.56); however, this association was not found for postnatal exposure. The Nrf2 GG (aOR=23.69), GSTM1 null (aOR=8.18), and GSTP1 AG or GG (aOR=7.37) genotypes increased the combined LRTIs-promoting effects of prenatal exposure to the 2 indoor pollutants. Such effects of prenatal indoor PM2.5 and ETS exposure were not found for upper RTIs. CONCLUSIONS: Prenatal exposure to both indoor PM2.5 and ETS may increase susceptibility to LRTIs. This effect can be modified by polymorphisms in reactive oxygen species-related genes.
Cacao*
;
Cohort Studies
;
Diagnosis
;
Genotype
;
Humans
;
Infant
;
Methylation
;
Odds Ratio
;
Oxygen
;
Parents
;
Particulate Matter
;
Parturition
;
Pregnancy
;
Respiratory Tract Infections*
;
Smoke*
;
Tobacco
6.A Case of Acute Suppurative Thyroiditis with Thyrotoxicosis in an Elderly Patient.
Bo Sang KIM ; Kil Woo NAM ; Jeong Eun KIM ; Ji Hoon PARK ; Jun Sik YOON ; Jung Hwan PARK ; Sang Mo HONG ; Chang Bum LEE ; Yong Soo PARK ; Woong Hwan CHOI ; You Hern AHN ; Dong Sun KIM
Endocrinology and Metabolism 2013;28(1):50-54
Acute suppurative thyroiditis (AST) is a rare condition, as the thyroid gland is relatively resistant to infection. Thyroid function tests are usually normal in AST. A few cases of AST associated with thyrotoxicosis have been reported in adults. We report a case of AST that was associated with thyrotoxicosis in a 70-year-old woman. We diagnosed AST with thyroid ultrasonography and fine needle aspiration of pus. The patient improved after surgical intervention and had no anatomical abnormality. Fine needle aspiration is the best method for the difficult task of differentiating malignancy and subacute thyroiditis from AST with thyrotoxicosis. Earlier diagnosis and proper treatment for AST might improve the outcome.
Adult
;
Aged
;
Biopsy, Fine-Needle
;
Female
;
Humans
;
Suppuration
;
Thyroid Function Tests
;
Thyroid Gland
;
Thyroiditis, Subacute
;
Thyroiditis, Suppurative
;
Thyrotoxicosis
7.A Case of Acute Human Immunodeficiency Virus Syndrome Manifesting as Seizure.
Byung Moo AHN ; Kyung Min LEE ; Dong Kil NA ; Yun Ho SHIN ; Sung Woong JUNG ; Jacob LEE
Infection and Chemotherapy 2010;42(1):57-60
Acute human immunodeficiency virus (HIV) syndrome is defined as transient symptomatic illness associated with high-titer HIV replication and an expansive immunologic response to the invading pathogen. Seizure and epilepsy are not rare among the HIV-infected patients. Major causes of HIV-related seizure are focal brain lesion, meningitis, metabolic derangement, and no identified causes other than HIV itself. Generally, seizure in HIV infected patients develops during the advanced stages of the disease; decreased immunity and increased chances of developing opportunistic infection in the central nervous system (CNS) predispose them to have seizures attacks. We report a case of acute HIV syndrome which presented as new-onset seizure. Since no evidence of focal brain lesion or any opportunistic infection could be found, the most probable cause of seizure could be attributed to acute HIV syndrome. The patient got better after taking anti-epileptic drug and there have been no further recurrence of episodes so far.
Brain
;
Central Nervous System
;
Epilepsy
;
HIV
;
Humans
;
Meningitis
;
Opportunistic Infections
;
Recurrence
;
Seizures
8.CT-guided Aspiration of Syringomyelia Involving Thoracic Spinal Cord: a Case Report.
Bum Soo KIM ; Kook Jin AHN ; Yeon Kweon IHN ; Yoo Dong WON ; Yong Kil HONG
Neurointervention 2008;3(2):79-82
We present a case of symptomatic syringomyelia involving the spinal cord, which was managed by repeated CT-guided percutaneous aspiration, achieving significant decompression by imaging and clinical improvement of lower extremity numbness and weakness. Symptomatic syringomyelia, however, recurred on follow-up, and percutaneous aspiration was repeated four times at the average duration of 22 months. In no aspiration procedure did the patient experienced periprocedural complication. CT-guided percutaneous drainage of syringomyelia is a safe technique, and can be repeated as therapeutic alternative to surgery with temporary improvement of the symptom.
Decompression
;
Drainage
;
Follow-Up Studies
;
Humans
;
Hypesthesia
;
Lower Extremity
;
Spinal Cord*
;
Syringomyelia*
9.Identification of receptor activator of nuclear factor-(k)b ligand(rankl) and osteoprotegerin(opg) in odontogenic keratocyst
Dong Kil AHN ; Woo Hun HA ; Seong Sik KIM ; Dae Seok HWANG ; Yong Deok KIM ; Sang Hun SHIN ; Uk Kyu KIM ; Jong Ryoul KIM ; In Kyo CHUNG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2007;29(1):24-32
10.Risk of Postoperative Infection in Patients with Inflammatory Bowel Disease.
Hyo Suk AHN ; Sang Kil LEE ; Hyo Jong KIM ; Jae Young JANG ; Kwang Ro JOO ; Seok Ho DONG ; Byung Ho KIM ; Joung Il LEE ; Young Woon CHANG ; Rin CHANG
The Korean Journal of Gastroenterology 2006;48(5):306-312
BACKGROUND/AIMS: The clinical course of patients with inflammatory bowel disease (IBD) frequently leads to the use of immunosuppressants and immunomodulators. We investigated the risk of postoperative infection in patients with IBD undergoing elective bowel surgery and whether the use of corticosteroid (CS) and/or 6-mercaptopurine/ azathioprine (6-MP/AZA) before surgery was associated with the increased risk of postoperative infection. METHODS: Patients who were diagnosed as Crohn's disease (n=25) or ulcerative colitis (n=19) and underwent elective bowel surgery between 1986 and 2005 were identified. Medical records were retrospectively analyzed including age, sex, duration of disease, indication for surgery, duration of surgery, type of surgery, type of postoperative infection, admission period, usage of CS and 6-MP/AZA, and preoperative laboratory values. There were 27 patients receiving CS alone, 6 patients receiving 6-MP/AZA alone or with CS, and 16 patients receiving neither CS nor 6-MP/AZA. RESULTS: There were 17 postoperative infections (38.6%) among IBD patients who had undergone surgery and wound infection was the most common type of infection (76.5%). In IBD patients, patients receiving CS had higher postoperative infection rate than those patients receiving neither CS nor 6-MP/AZA (p=0.039). Patients receiving CS in conjunction with 6-MP/AZA did not have significantly higher postoperative infection rate than those with CS only (p=0.415). CONCLUSIONS: Preoperative use of CS in patients with IBD is associated with the increased risk of postoperative infections. Addition of 6-MP/AZA in patients receiving CS does not increase the risk of postoperative infections.
Colitis, Ulcerative/drug therapy/*surgery
;
Crohn Disease/drug therapy/*surgery
;
Humans
;
Immunologic Factors/*adverse effects/therapeutic use
;
Immunosuppressive Agents/*adverse effects/therapeutic use
;
Infection/epidemiology/*etiology
;
Postoperative Complications/epidemiology/*etiology
;
Retrospective Studies

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