Molecular and Cellular Mechanisms Underlying the Microbial Survival Strategies: Insights into Temperature and Nitrogen Adaptations

2021 ◽  
pp. 717-748
Author(s):  
Khaled A. Selim ◽  
Erik Zimmer ◽  
Heba Yehia ◽  
Sofía Doello
BioEssays ◽  
2011 ◽  
Vol 33 (3) ◽  
pp. 215-223 ◽  
Author(s):  
Imke G. de Jong ◽  
Patsy Haccou ◽  
Oscar P. Kuipers

2017 ◽  
Vol 11 (10) ◽  
pp. 2305-2318 ◽  
Author(s):  
Rachel Mackelprang ◽  
Alexander Burkert ◽  
Monica Haw ◽  
Tara Mahendrarajah ◽  
Christopher H Conaway ◽  
...  

2007 ◽  
Vol 43 ◽  
pp. 105-120 ◽  
Author(s):  
Michael L. Paffett ◽  
Benjimen R. Walker

Several molecular and cellular adaptive mechanisms to hypoxia exist within the vasculature. Many of these processes involve oxygen sensing which is transduced into mediators of vasoconstriction in the pulmonary circulation and vasodilation in the systemic circulation. A variety of oxygen-responsive pathways, such as HIF (hypoxia-inducible factor)-1 and HOs (haem oxygenases), contribute to the overall adaptive process during hypoxia and are currently an area of intense research. Generation of ROS (reactive oxygen species) may also differentially regulate vascular tone in these circulations. Potential candidates underlying the divergent responses between the systemic and pulmonary circulations may include Nox (NADPH oxidase)-derived ROS and mitochondrial-derived ROS. In addition to alterations in ROS production governing vascular tone in the hypoxic setting, other vascular adaptations are likely to be involved. HPV (hypoxic pulmonary vasoconstriction) and CH (chronic hypoxia)-induced alterations in cellular proliferation, ionic conductances and changes in the contractile apparatus sensitivity to calcium, all occur as adaptive processes within the vasculature.


2020 ◽  
Vol 134 (12) ◽  
pp. 1403-1432 ◽  
Author(s):  
Manal Muin Fardoun ◽  
Dina Maaliki ◽  
Nabil Halabi ◽  
Rabah Iratni ◽  
Alessandra Bitto ◽  
...  

Abstract Flavonoids are polyphenolic compounds naturally occurring in fruits and vegetables, in addition to beverages such as tea and coffee. Flavonoids are emerging as potent therapeutic agents for cardiovascular as well as metabolic diseases. Several studies corroborated an inverse relationship between flavonoid consumption and cardiovascular disease (CVD) or adipose tissue inflammation (ATI). Flavonoids exert their anti-atherogenic effects by increasing nitric oxide (NO), reducing reactive oxygen species (ROS), and decreasing pro-inflammatory cytokines. In addition, flavonoids alleviate ATI by decreasing triglyceride and cholesterol levels, as well as by attenuating inflammatory mediators. Furthermore, flavonoids inhibit synthesis of fatty acids and promote their oxidation. In this review, we discuss the effect of the main classes of flavonoids, namely flavones, flavonols, flavanols, flavanones, anthocyanins, and isoflavones, on atherosclerosis and ATI. In addition, we dissect the underlying molecular and cellular mechanisms of action for these flavonoids. We conclude by supporting the potential benefit for flavonoids in the management or treatment of CVD; yet, we call for more robust clinical studies for safety and pharmacokinetic values.


1996 ◽  
Author(s):  
Maureen Murphy ◽  
Karen Rosica
Keyword(s):  

Pneumologie ◽  
2010 ◽  
Vol 64 (01) ◽  
Author(s):  
N Weichert ◽  
E Kaltenborn ◽  
A Hector ◽  
M Woischnik ◽  
S Moslavac ◽  
...  

2014 ◽  
Vol 8 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Bayram Unal

This study deals with survival strategies of illegal migrants in Turkey. It aims to provide an explanation for the efforts to keep illegality sustainable for one specific ethnic/national group—that is, the Gagauz of Moldova, who are of Turkish ethnic origin. In order to explicate the advantages of Turkish ethnic origin, I will focus on their preferential treatment at state-law level and in terms of the implementation of the law by police officers. In a remarkable way, the juridical framework has introduced legal ways of dealing with the illegality of ethnically Turkish migrants. From the viewpoint of migration, the presence of strategic tools of illegality forces us to ask not so much law-related questions, but to turn to a sociological inquiry of how and why they overstay their visas. Therefore, this study concludes that it is the social processes behind their illegality, rather than its form, that is more important for our understanding of the migrants’ survival strategies in destination countries.


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