1.Investigation of Splicing Quantitative Trait Loci in Arabidopsis thaliana.
Wonseok YOO ; Sungkyu KYUNG ; Seonggyun HAN ; Sangsoo KIM
Genomics & Informatics 2016;14(4):211-215
The alteration of alternative splicing patterns has an effect on the quantification of functional proteins, leading to phenotype variation. The splicing quantitative trait locus (sQTL) is one of the main genetic elements affecting splicing patterns. Here, we report the results of genome-wide sQTLs across 141 strains of Arabidopsis thaliana with publicly available next generation sequencing datasets. As a result, we found 1,694 candidate sQTLs in Arabidopsis thaliana at a false discovery rate of 0.01. Furthermore, among the candidate sQTLs, we found 25 sQTLs that overlapped with the list of previously examined trait-associated single nucleotide polymorphisms (SNPs). In summary, this sQTL analysis provides new insight into genetic elements affecting alternative splicing patterns in Arabidopsis thaliana and the mechanism of previously reported trait-associated SNPs.
Alternative Splicing
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Arabidopsis*
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Dataset
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Phenotype
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Polymorphism, Single Nucleotide
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Quantitative Trait Loci*
2.A Magnetic Resonance-based Seed Localization Method for I-125 Prostate Implants.
Rena J LEE ; Hyun Suk SUH ; Kyung Ja LEE ; Soome LIM ; Yookyung KIM ; Sungkyu KIM ; Jinho CHOI
Journal of Korean Medical Science 2007;22(Suppl):S129-S133
This study was performed to develop and evaluate a semi-automatic seed localization algorithm from magnetic resonance (MR) images for interstitial prostate brachytherapy. The computerized tomography (CT) and MR images (3 mm-slice thickness) of six patients who had received real-time MR imaging-guided interstitial prostate brachytherapy were obtained. An automatic seed localization method was performed on CT images to obtain seed coordinates, and an algorithm for seed localization from MR images of the prostate was developed and tested. The resultant seed distributions from MR images were then compared to CT-derived distribution by matching the same seeds and calculating percent volume receiving 100% of the prescribed dose and the extent of the volume in 3-dimensions. The semiautomatic seed localization method made it possible to extract more than 90% of the seeds with either less than 8% of noises or 3% of missing seeds. The mean volume difference obtained from CT and MR receiving 100% of the prescribed dose was less than 3%. The maximum extent of the volume receiving the prescribed dose were 0.3, 0.6, and 0.2 cm in x, y, and z directions, respectively. These results indicate that the algorithm is very useful in identifying seeds from MR image for post-implant dosimety.
Algorithms
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Brachytherapy/*methods/statistics & numerical data
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Humans
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Iodine Radioisotopes/*administration & dosage
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*Magnetic Resonance Imaging, Interventional/statistics & numerical data
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Male
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Prostatic Neoplasms/*pathology/radiography/*radiotherapy
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Radiotherapy Dosage
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Radiotherapy Planning, Computer-Assisted
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Tomography, X-Ray Computed/statistics & numerical data
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Tumor Burden
3.Two cases of extracorporeal membrane oxygenation for ventilator-dependent infants with bronchopulmonary dysplasia and pulmonary hypertension
Yong Hyuk JEON ; Wonjin JANG ; Hye Won KWON ; Sungkyu CHO ; Jae Gun KWAK ; In Kyung LEE ; Kyeong Hun LEE ; June Dong PARK ; Bongjin LEE
Pediatric Emergency Medicine Journal 2024;11(2):91-97
Bronchopulmonary dysplasia (BPD) and pulmonary hypertension (PH) are potentially fatal complications in prematurely born infants. Extracorporeal membrane oxygenation (ECMO) may be a life-saving option for managing infants with BPD and PH. We present 2 patients who were successfully weaned off mechanical ventilators (MVs) through the application of ECMO. The patients were transferred to our institution after receiving MV care for 8 and 10 months, respectively, for BPD and PH. We were able to remove the patients from MVs after a period of ECMO-mediated lung rest. Although more research is required to determine specific criteria for ECMO use in patients with BPD and PH, our clinical experiences may contribute to the early application of ECMO in MV-dependent patients.