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Taegeun Lee,Chan-Jeoung Park,Miyoung Kim,Young-Uk Cho,Seongsoo Jang,Sang-Hyun Hwang,Jung-Hee Lee,Dok Hyun Yoon 대한혈액학회 2023 Blood Research Vol.58 No.1
Background Light-chain amyloidosis (AL) is the most common form of systemic amyloidosis. This study aimed to evaluate the usefulness of laboratory tests for light-chain clonality and bone marrow (BM) findings in AL amyloidosis. Methods We retrospectively enrolled patients newly diagnosed with AL amyloidosis on pathological examination who underwent a BM biopsy. Laboratory test data for light-chain clonality were collected and compared. Amyloid deposits were identified with H&E, Congo red, and PAS stains. Results We reviewed 98 patients with AL amyloidosis. Light chain clonality (λ, 64 cases; κ, 34 cases) was detected by serum immunofixation electrophoresis (IFE) (63.3%), urine IFE (70.8%), serum protein electrophoresis (PEP) (44.9%), urine PEP (44.8%), serum free light chain (SFLC) ratio (79.5%), and BM immunohistochemistry (IHC) (85.7%). Flow cytometric (FCM) assay identified aberrant BM plasma cells in 92.9% of cases. BM amyloid deposits were identified in 35 of the 98 cases (35.7%); 71.4% (25/35) were Congo red-positive, and 100.0% (35/35) were PAS-positive. Conclusion Laboratory tests for detecting light-chain clonality in AL amyloidosis in order of sensitivity include FCM assay for aberrant plasma cells, IHC for light chains on BM biopsy or clot section, SFLC ratio, and serum and urine IFE. Congo red staining of BM samples remains an important tool for identifying amyloid deposits in BM. Periodic acid-Schiff (PAS) staining can be useful in diagnosing some cases of Congo red-negative amyloidosis.
Error Control Scheme for High-Speed DVD Systems
( Joo Hyun Lee ),( Jae Jin Lee ),( Taegeun Park ) 정보저장시스템학회 2005 추계학술대회논문집 Vol.2005 No.-
We present a powerful error control decoder which can be used in all of the commercial DVD systems. The decoder exploits the error information from the modulation decoder in order to increase the error correcting capability. We can identify that the modulation decoder in DVD system can detect errors more than 60% of total errors when burst errors are occurred. In results, for a decoded block, error correcting capability of the proposed scheme is improved up to 25% more than that of the original error control decoder. In addition, the more the burst error length is increased, the better the decoder performance. Also, a pipeline-balanced RSPC decoder with a low hardware complexity is designed to maximize the throughput. The maximum throughput of the RSPC decoder is 740Mbps@100MHz and the number of gate counts is 20.3K for RS (182, 172, 11) decoder and 30.7K for RS (208, 192, 17) decoder, respectively.
Myofibroblast in the ligamentum flavum hypertrophic activity
Hur, Junseok W.,Bae, Taegeun,Ye, Sunghyeok,Kim, Joo-Hyun,Lee, Sunhye,Kim, Kyoungmi,Lee, Seung-Hwan,Kim, Jin-Soo,Lee, Jang-Bo,Cho, Tai-Hyoung,Park, Jung-Yul,Hur, Junho K. Springer-Verlag 2017 European spine journal Vol.26 No.8
<P>We conclude that the transition of fibroblast to myofibroblasts via TGF-beta pathway is a key linker between inflammation and fibrosis in LFH mechanism.</P>