Ji Hyun Yang

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MicroRNA (miR)390 cleaves the non-coding TAS3 precursor RNA for the production of tasiRNA-ARF, a group of an endogenous trans-acting small-interfering RNAs which cleave the transcripts of auxin response factor (ARF) 3/4. miR390-cleaved TAS3 RNA is polymerized and diced into tasiRNA-ARF by RNA-dependent RNA polymerase6 (RDR6) and Dicer-like4 (DCL4),(More)
MicroRNA167 (miR167) was shown to cleave auxin responsive factor 8 (ARF8) mRNA in cultured rice cells. MiR167 level was found to be controlled by the presence of auxin in the growth medium. When cells grew in auxin-free medium, miR167 level decreased, resulting in an increase in the level of ARF8 mRNA. Cells growing in the normal growth medium containing(More)
RNA-dependent RNA polymerase 6 (RDR6) catalyses dsRNA synthesis for post-transcriptional gene silencing (PTGS)-associated amplification and the generation of endogeneous siRNAs involved in developmental determinations or stress responses. The functional importance of RDR6 in PTGS led us to examine its connection to the cellular regulatory network by(More)
BACKGROUND We sought to compare long-term outcomes for multivessel revascularization (MVR) vs single-vessel revascularization (SVR) with drug-eluting stents (DES) in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS) and multivessel coronary artery disease (MVD). HYPOTHESIS In DES era, MVR would improve long-term clinical outcomes(More)
We investigated whether the echocardiographic parameters of the left atrium (LA) can predict the development of nonvalvular atrial fibrillation (AF). Among 14,062 patients (>20 years old) who underwent an echocardiographic examination were evaluated, 2,606 patients who underwent follow-up ECG with an interval of >6 months were investigated. Newly developed(More)
During malaria infections, thrombocytopenia and low cholesterol levels are frequently observed changes. We compared these changes in patients admitted with fevers and infected with Plasmodium vivax, patients admitted with fevers with respiratory/urinary infections and afebrile normal (control) non-infected volunteers. Changes in the platelet count and lipid(More)
OBJECTIVE To determine the efficacy of an alpha-adrenoceptor antagonist, terazosin, in reducing nocturia in men with lower urinary tract symptoms (LUTS), and to identify the factors predicting treatment outcome. PATIENTS AND METHODS In all, 100 patients were treated with 2 mg of terazosin once daily for the first 7 days, and continued to receive 4 mg of(More)
INTRODUCTION Helicopter overland navigation is a cognitively complex task that requires continuous monitoring of system and environment parameters and years of training. This study investigated potential improvements to training simulation by analyzing the influences of flight expertise on visual scan patterns. METHODS There were 12 military officers who(More)
This paper aims to provide reliable indications of driver drowsiness based on the characteristics of driver–vehicle interaction. A test bed was built under a simulated driving environment, and a total of 12 subjects participated in two experiment sessions requiring different levels of sleep (partial sleepdeprivation versus no sleep-deprivation) before the(More)
OBJECTIVE This study was designed to evaluate the effects of risk factors for erectile dysfunction (ED) or cardiovascular disease on the disease severity in impotent men. METHODS A total of 87 men, 25-75 years old (mean age, 53.4) were included in the study. Patients were evaluated with anthropometry, hormones, metabolic profiles and lifestyle. Baseline(More)