نتایج جستجو برای: tr
تعداد نتایج: 17148 فیلتر نتایج به سال:
Context. The footpoints of quiet Sun Transition Region (TR) loops do not seem to coincide with the photospheric magnetic structures appearing in traditional low-sensitivity magnetograms. Aims. To look for the so-far unidentified photospheric footpoints of TR loops using G-band bright points (BPs) as proxies for photospheric magnetic field concentrations. Methods. Comparison of TR measurements w...
Oxidative stress measured by thioredoxin reductase level as potential biomarker for prostate cancer.
The aims of this study were to determine if Thioredoxin reductase (TR) is detected in the serum, and to establish the sensitivity and specificity of serum TR for diagnosing prostate cancer (PC). We assessed serum TR in 380 participants in the training cohort: 160 patients with PC, 120 with benign prostatic hyperplasia and 100 healthy individuals. The validation cohort comprised 320 participants...
Cervicovaginal lavage fluid (CVL) is a natural source of anti-HIV-1 factors; however, molecular characterization of the anti-HIV-1 activity of CVL remains elusive. In this study, we confirmed that CVLs from HIV-1-resistant (HIV-R) compared to HIV-1-susceptible (HIV-S) commercial sex workers (CSWs) contain significantly larger amounts of serine antiprotease trappin-2 (Tr) and its processed form,...
Bài vi?t kh?o sát th?c tr?ng công b? thông tin trách nhi?m xã h?i c?a các doanh nghi?p niêm y?t trên th? tr??ng ch?ng khoán Vi?t Nam d?a theo ch? s? minh b?ch ???c xây d?ng chu?n GRI v? h?i. D?a m?u nghiên c?u g?m 900 quan sát, bài ?ã ?ánh giá nhân t? tác ??ng ??n Nam, trong ?ó kh?ng ??nh bao ?òn b?y tài chính, quy mô nghi?p, m?c ?? ??c l?p H?i ??ng qu?n tr?, t? tr?ng s? h?u nhà n??c , tính kiê...
The synthesis of anthocyanin pigments and proanthocyanidins (condensed tannins) is regulated by MYB-bHLH-WDR (MBW) transcription factor complexes in all angiosperms studied to date. Tr-MYB133 and Tr-MYB134 were isolated from Trifolium repens and encode R2R3-MYBs that antagonize the activity of MBW activation complexes. These two genes are conserved in other legume species, and form two sub-clad...
Thyroid hormone receptors (TRs) are ligand-regulatable transcription factors. Currently, little is known about the expression of TRs or other nuclear hormone receptors during the cell cycle. We thus developed a stable expression system to express green fluorescent protein-TR in HeLa cells under tetracycline regulation, and studied TR expression during the cell cycle by laser scanning cytometry....
BACKGROUND The adoption of the transradial (TR) approach over the traditional transfemoral (TF) approach has been hampered by concerns of increased radiation exposure-a subject of considerable debate within the field. We performed a patient-level, multi-center analysis to definitively address the impact of TR access on radiation exposure. METHODS AND RESULTS Overall, 10 centers were included ...
UNLABELLED PET scanners with an elongated axial field of view intended to increase overall system sensitivity, such as the high-resolution research tomograph (HRRT) scanner, have been reported to produce images with decreased signals in the brain stem and cerebellum. The cause of this negative bias of the images was analyzed, and the effects of an inaccurate linear attenuation coefficient (mu-v...
Thyroid hormone receptor (TR) can act as both a transcriptional activator and a silencer. Optimal activation by TR requires synergism with activator(s) bound to the promoter (promoter proximal activator). It is thought that liganded TR either helps to recruit preinitiation complexes (PIC) to the promoter or activates the PIC already recruited. However, the studies analyzing the TR action on the...
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