Iskanje po repozitoriju

A+ | A- | | SLO | ENG

Ključne besede: energy, kinetics, molecules, protein structure, rotational dynamics, molecules, protein structure, rotational dynamics
Objavljeno v DiRROS: 06.09.2023; Ogledov: 158; Prenosov: 89
Celotno besedilo (2,08 MB)
Gradivo ima več datotek! Več...

Povzetek: Background: Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality and is characterized by episodes of acute exacerbations. Finding a systemic biomarker that reliably predicts outcome after an acute exacerbation remains a major challenge. Heat shock protein 27 (HSP27) has been previously studied in COPD, however, urine excretion trajectory and prognostic value after an exacerbation is unknown. Methods: In this retrospective post hoc analysis of a prospective study that included 253 COPD patients who were hospitalized for acute exacerbation, 207 patients were analyzed. Urine and serum were sampled at admission, discharge, and 180 days after discharge; urine excretion trajectory was analyzed and correlated with clinicopathological and survival data. Results: HSP27 urine excretion increased after an exacerbation episode [1.8% admission, 1.8% discharge, 2.3% 180 days after discharge (P=0.091)]. In severely ill patients (GOLD IV) this course was even more distinct [1.6% admission, 2.1% discharge, 2.8% 180 days after discharge (P=0.007)]. Furthermore, fractional HSP27 urine excretion at discharge was increased in GOLD IV patients (P=0.031). In Kaplan-Meier and univariable Cox proportional hazard models patients with HSP27 urine excretion below 0.845% showed significantly worse survival at 30, 90 and 180 days after discharge. In a multivariable Cox proportional hazard model including established COPD outcome parameters fractional HSP27 urine excretion remained a significant predictor of survival at 30 and 90 days after discharge. Comparing this model to our already published model that includes HSP27 serum concentration we could show that fractional HSP27 urine excretion performs better in short-term survival. Conclusions: Our findings provide novel information about fractional HSP27 urine excretion trajectory in acute exacerbation of COPD. Fractional HSP27 urine excretion may be significantly reduced during an episode of acute exacerbation in COPD patients and may be used as a predictor of short-term all-cause mortality.
Ključne besede: biomarkers, heat-shock proteins, chronic obstructive pulmonary disease, urine, heat shock protein 27
Objavljeno v DiRROS: 25.01.2021; Ogledov: 1278; Prenosov: 925
Celotno besedilo (691,92 KB)
Gradivo ima več datotek! Več...

Ključne besede: quartz crystal microbalance, mAb, in-line sensor, protein A, continuous multi-column affinity chromatography
Objavljeno v DiRROS: 01.09.2020; Ogledov: 1345; Prenosov: 972
Celotno besedilo (1,82 MB)
Gradivo ima več datotek! Več...

Ključne besede: amino acyl-tRNA synthetases, archaea, archaeal proteins, bacteria, computational biology, crystallography, X-ray, genetic code, genome, archaeal, genome, bacterial, phosphoserine, protein binding, protein biosynthesis, RNA, archaeal, RNA, bacterial, RNA, transfer, amino acyl, RNA, transfer, cys, sulfur/metabolism, biochemistry, bioinformatics, cysteine biosynthesis, genetic code, translation
Objavljeno v DiRROS: 07.05.2020; Ogledov: 1518; Prenosov: 1218
Celotno besedilo (1,15 MB)
Gradivo ima več datotek! Več...