Results 91 to 100 of about 21,881,205 (365)
Influence of some cardiovascular risk factors on the rela-tionship between age and blood pressure [PDF]
NORDIC BALTIC CONFERENCE ON Biomedical Engineering and Medical
Physics 2020, 2020 Blood Pressure (BP) is a biological signal related to the cardiovascular system that inevitably is affected by ageing. Moreover, it is also influenced by the presence of cardiovascular risk factors. To evaluate how the relationship be-tween BP and age changes with the presence of risk factors in hypertensive and normotensive subjects, we analyzed 880 ...
arxiv
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Investigating the spectral age problem with powerful radio galaxies [PDF]
, 2019 The 'spectral age problem' is our systematic inability to reconcile the maximum cooling time of radiating electrons in the lobes of a radio galaxy with its age as modelled by the dynamical evolution of the lobes. While there are known uncertainties in the models that produce both age estimates, `spectral' ages are commonly underestimated relative to ...
arxiv +1 more source
Coupled Hydro-Mechanical Aging Of Short Flax Fiber Reinforced Composites [PDF]
Polymer Degradation and Stability, Elsevier, 2016, 130, pp.300 -
306, 2018 One of the challenges in the widespread use of biocomposites for engineering applications is the influence of environmental conditions on their mechanical properties, particularly for a combination of aging factors such as temperature, moisture, and mechanical stresses.
arxiv +1 more source
Clinical Infectious Diseases, 2014 BACKGROUND Human immunodeficiency virus (HIV)-infected individuals may be at increased risk of age-associated noncommunicable comorbidities (AANCCs). METHODS Cross-sectional analyses of AANCC prevalence (including cardiovascular, metabolic, pulmonary ...
J. Schouten +7 more
semanticscholar +1 more source
FEBS Letters, EarlyView.The S1025 peptide is the major antidote to the YrzI toxin, which we renamed here as SpyT (Small Peptide YrzI Toxin) and SpyA (Small Peptide YrzI Antitoxin) (1). Degradation of the toxin–antitoxin spyTA mRNA, either by a translation‐dependent cleavage by the endoribonuclease Rae1 (2) or by direct attack by 3′‐exoribonucleases (3), also contributes to ...
Laetitia Gilet +4 more
wiley +1 more source
The Aging Male, 2022 Objectives The aim of this study was to assess whether age ≥75 years impairs surgical, functional, and oncological outcomes after robot-assisted radical prostatectomy (RARP).
Sami-Ramzi Leyh-Bannurah +9 more
doaj +1 more source
Introduction and reconciliation of the ROS and aging paradoxes [PDF]
arXiv, 2017 This paper suggests that aging is influenced synthetically by pro-aging factors such as ROS and anti-aging factors such as protective responses. The anti-aging effect may be side effects of retrograde responses motivated against adverse circumstances. ROS may be more closely correlated with metabolism rather than aging.
arxiv
The Relationship between Accretion Disc Age and Stellar Age and its Consequences for Proto-Stellar Discs [PDF]
, 2011 We show that for young stars which are still accreting and for which measurements of stellar age, disc mass and accretion rate are available, nominal disc age (Disc Age = Disc Mass / Accretion Rate) is approximately equal to the stellar age, at least within the considerable observational scatter.
arxiv +1 more source
Vascular and Neurogenic Rejuvenation of the Aging Mouse Brain by Young Systemic Factors
Science, 2014 Help the Aged Muscle function declines with age, as does neurogenesis in certain brain regions. Two teams analyzed the effects of heterochronic parabiosis in mice. Sinha et al. (p.
Lida Katsimpardi +9 more
semanticscholar +1 more source