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Angel Chao,Yi-Hao Lin,Lan-Yan Yang,Ren-Chin Wu,Wei-Yang Chang,Pi-Yueh Chang,Shih-Cheng Chang,Chiao-Yun Lin,Huei-Jean Huang,Cheng-Tao Lin,Hung-Hsueh Chou,Kuan-Gen Huang,Wen-Ling Kuo,Ting-Chang Chang,Ch 대한부인종양학회 2020 Journal of Gynecologic Oncology Vol.31 No.3
Objective: The characteristics of patients with metachronous breast and ovarian malignancies and the pathogenic role of BRCA1/2 mutations remain poorly understood. We investigated these issues through a review of hospital records and nationwide Taiwanese registry data, followed by BRCA1/2 mutation analysis in hospital-based cases. Methods: We retrospectively retrieved consecutive clinical records of Taiwanese patients who presented with these malignancies to our hospital between 2001 and 2017. We also collected information from the Data Science Center of the Taiwan Cancer Registry (TCR) between 2007 and 2015. Next-generation sequencing and multiplex ligation-dependent probe amplification were used to identify BRCA1/2 mutations and large genomic rearrangements, respectively. When BRCA1/2 mutations were identified in index cases, pedigrees were reconstructed and genetic testing was offered to family members. Results: A total of 12,769 patients with breast cancer and 1,537 with ovarian cancer were retrieved from our hospital records. Of them, 28 had metachronous breast and ovarian malignancies. We also identified 113 cases from the TCR dataset. Eighteen hospital-based cases underwent BRCA1/2 sequencing and germline pathogenic mutations were detected in 7 patients (38.9%, 5 in BRCA1 and 2 in BRCA2). All BRCA1/2 mutation carriers had ovarian high-grade serous carcinomas. Of the 12 patients who were alive at the time of analysis, 5 were BRCA1/2 mutation carriers. All of them had family members with BRCA1/2-associated malignancies. Conclusions: Our results provide pilot evidence that BRCA1/2 mutations are common in Taiwanese patients with metachronous breast and ovarian malignancies, supporting the clinical utility of genetic counseling.
Aeromicrobium halotolerans sp. nov., isolated from desert soil sample
Yan, Zheng-Fei,Lin, Pei,Chu, Xiao,Kook, MooChang,Li, Chang-Tian,Yi, Tae-Hoo Springer-Verlag 2016 Archives of microbiology Vol.198 No.5
<P>A Gram-positive, aerobic, and non-motile, rod-shaped actinomycete strain, designated YIM Y47(T), was isolated from soils collected from Turpan desert, China, and subjected to a polyphasic taxonomic study. Phylogenetic analysis indicated that strain YIM Y47(T) belonged to the genus Aeromicrobium. YIM Y47(T) shared highest 16S rRNA gene sequence similarities with Aeromicrobium massiliense JC14(T) (96.47 %). Growth occurs at 20-45 A degrees C (optimum at 30 A degrees C), pH 6.0-8.0 (optimum at pH 7.0), and salinities of 0-7.0 % NaCl (optimum at 4.0 %). The strain YIM Y47(T) exhibits chemotaxonomic features with menaquinone-7 (MK-7) as the predominant quinone, C-16:0, C-18:1 omega 9c and 10-methyl C-18:0 (> 10 %) as major fatty acids. The cell-wall peptidoglycan of strain YIM Y47(T) contained ll-diaminopimelic acid as the diagnostic diamino acid. The polar lipids were found to consist of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, and unknown phospholipids. The G+C content of the genomic DNA of strain YIM Y47(T) was found to be 44.7 mol%. On the basis of phylogenetic analyses and phenotypic data, it is proposed that strain YIM Y47(T) should be classified as representing a novel species of the genus Aeromicrobium, with the name Aeromicrobium halotolerans sp. nov. The type strain is YIM Y47(T) (=KCTC 39113(T)=CGMCC 1.15063(T)=DSM 29939(T)=JCM 30627(T)).</P>
Altererythrobacter deserti sp. nov., isolated from desert soil
Yan, Zheng-Fei,Lin, Pei,Won, Kyung-Hwa,Yang, Jung-Eun,Li, Chang-Tian,Kook, MooChang,Yi, Tae-Hoo Microbiology Society 2017 International journal of systematic and evolutiona Vol.67 No.10
<P>A Gram-stain-negative, aerobic, short rod-shaped, non-motile bacterium (THG-S3(T)), was isolated from desert soil. Growth occurred at 15-35 degrees C (optimum 28 degrees C), at pH 5-10 (optimum 7) and at 0-4% NaCl (optimum 1 %). Based on 16S rRNA gene sequence analysis, the nearest phylogenetic neighbours of strain THG-S3(T) were identified as Altererythrobacter rigui KCTC 42620(T) (99.0 %), Altererythrobacter dongtanensis KCTC 22672(T) (97.1 %), Altererythrobacter xinjiangensis CCTCC AB 207166(T) (96.9 %), Altererythrobacter troitsensis KCTC 12303(T) (96.9 %). Levels of relatedness among strain THG-S3(T) and other Altererythrobacter species were lower than 96.0 %. DNA-DNA hybridization values between strain THG-S3(T) and A. rigui KCTC 42620(T), A. dongtanensis KCTC 22672(T), A. xinjiangensis CCTCC AB 207166(T) and A. troitsensis KCTC 12303(T) were 59.7% (42.8 %, reciprocal analysis), 45.1% (36.3 %), 34.7% (25.1 %) and 15.1% (12.3 %), respectively. The DNA G+C content of strain THG-S3(T) was 69 mol%. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and three unidentified lipids The quinone was ubiquinone-10. The major fatty acids were C-16 : 0, C-17 : 1 omega 6c, C-18 : 1 omega 7c and summed feature 3 (C-16 : 1 omega 7c and/or C-16 : 1 omega 6c). On the basis of the phylogenetic analysis, chemotaxonomic data, physiological characteristics and DNA-DNA hybridization data, strain THG-S3(T) represents a novel species of the genus Altererythrobacter, for which the name Altererythrobacter deserti sp. nov. is proposed. The type strain is THG-S3(T) (=KACC 19190(T) = CGMCC 1.15959(T)).</P>