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Comparative Studies of Energy Homeostasis in Vertebrates

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889455607 Year: Pages: 188 DOI: 10.3389/978-2-88945-560-7 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Internal medicine --- Science (General) --- Neurology
Added to DOAB on : 2019-01-23 14:53:42
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A brief glimpse into new insight driving the comparative biology of energy homeostasis in vertebrates with a focus on non-mammalian vertebrates. What are the key conserved mechanisms and what aspects of feeding behavior and energy allocation are different between species?

Energy metabolism

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889193080 Year: Pages: 132 DOI: 10.3389/978-2-88919-308-0 Language: English
Publisher: Frontiers Media SA
Subject: Physiology --- Science (General)
Added to DOAB on : 2016-02-05 17:24:33
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Energy metabolism is central to life and altered energy expenditure (EE) is often cited as a central mechanism responsible for development of the obese phenotype. Resting EE, EE of physical activity, cold induced thermogenesis and thermic effect of feeding add to produce total EE but can also affect each other. It is thus very important that each component be well measured. Measuring energy expenditure by indirect calorimetry is extremely simple in theory but the practice if far more difficult. Taking into account temperature in small sized animals, measuring accurately the effect of activity on EE, correcting EE for body size body composition, age sex etc… add difficulties in producing reliable data. The goal of this Research Topic was to call for the practical experience of main investigators trained to practice calorimetry in order to get their feedback and the way they deal with the various and specific problems of humans and animal calorimetry. The goal is to share the questions/solutions experienced by the contributors to inititate a “guide of the good practices” that can be periodically updated and used by all those who are and will be interested in measuring energy metabolism from the 20g mouse to the human and large farm animals.

Sedentary Behaviour in Human Health and Disease

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889455478 Year: Pages: 74 DOI: 10.3389/978-2-88945-547-8 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Physiology
Added to DOAB on : 2019-01-23 14:53:42
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Sedentary behaviour – too much sitting as distinct from too little physical activity – is now recognised as an independent risk factor for several health outcomes and premature mortality. This is problematic as technological advancements in transportation, communications, workplaces, and domestic entertainment has created environments that encourage engagement in sedentary behaviour. Evidence from observational epidemiology shows that prolonged sitting is associated with increased risk of disease and adverse risk marker levels including type 2 diabetes, cardiovascular diseases, some cancers, obesity, glucose tolerance, and lipids. Importantly, the associations between prolonged sitting and these health markers are independent of time spent in moderate-to-vigorous physical activity. Intriguingly, observational studies employing objective measures of sedentary time patterns using accelerometry have shown that adults who interrupt their sedentary time more frequently (breaks in sedentary time) have improved cardiometabolic profiles than those whose sedentary time is mostly uninterrupted. These beneficial associations are independent of total sedentary time and time spent in moderate-to-vigorous physical activity. In light of this evidence, experimental studies are now being conducted to identify novel mechanisms and potential causal relationships. It has been suggested that loss of muscular contractile stimulation induced through sitting impairs skeletal muscle metabolism of lipids and glucose and that the molecular processes through which these responses occur may be separate from the pathways activated when engaging in exercise. This Research Topic aims to bring together contributions from researchers to advance the sedentary behaviour research agenda and strengthen the case for reducing and breaking up sitting time in primary prevention and disease management contexts.

The two-way link between eating behavior and brain metabolism

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197057 Year: Pages: 197 DOI: 10.3389/978-2-88919-705-7 Language: English
Publisher: Frontiers Media SA
Subject: Psychology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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This research topic collected and connected information concerning both the underlying metabolic mechanisms and consequences of eating behaviors. These two aspects are tremendously important for a better understanding of eating behavior abnormalities as well as for improving education on eating disorders and behaviors.

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