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Antioxidants in Sport Nutrition

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ISBN: 9781466567573 Year: Pages: 301 Language: English
Publisher: Taylor & Francis
Subject: Public Health --- Biology --- Medicine (General)
Added to DOAB on : 2020-07-24 23:59:13
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The use of antioxidants in sports is controversial due to existing evidence that they both support and hinder athletic performance. Antioxidants in Sport Nutrition covers antioxidant use in the athlete´s basic nutrition and discusses the controversies surrounding the usefulness of antioxidant supplementation. The book also stresses how antioxidants may affect immunity, health, and exercise performance. The book contains scientifically based chapters explaining the basic mechanisms of exercise-induced oxidative damage. Also covered are methodological approaches to assess the effectiveness of antioxidant treatment. Biomarkers are discussed as a method to estimate the bioefficacy of dietary/supplemental antioxidants in sports. This book is useful for sport nutrition scientists, physicians, exercise physiologists, product developers, sport practitioners, coaches, top athletes, and recreational athletes. In it, they will find objective information and practical guidance.

Keywords

Antioxidants --- Nutrition --- Sport

Antioxidants in Health and Disease

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ISBN: 9781466580039 Year: Pages: 341 Language: English
Publisher: Taylor & Francis
Subject: Public Health --- Chemical Technology
Added to DOAB on : 2020-07-24 23:59:23
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Antioxidants in Health and Disease discusses the effects of dietary antioxidants and antioxidant supplementation in humans. It reviews the latest evidence-based research in the area, principally through prospective cohort studies and randomized controlled trials. The book assesses major dietary antioxidants and discusses their use in diseases such as cancer, diabetes, stroke, coronary heart disease, HIV/AIDS, and neurodegenerative and immune diseases. The use of antioxidants in health is also discussed along with common adverse effects associated with antioxidant use. Separating myth from fact, this book gives you insight into the true role of antioxidants in health and disease.

Keywords

Antioxidants --- Disease --- Health

Chapter 7 Vitamin C in Pneumonia and Sepsis (Book chapter)

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ISBN: 9781138337992 Year: Pages: 26 Language: English
Publisher: Taylor & Francis
Subject: Medicine (General) --- Biology
Added to DOAB on : 2020-07-28 23:57:28
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In humans, ascorbic acid is an essential vitamin, anti-oxidant and co-factor of a variety of metal ion-dependent enzymatic reactions. In this review, the transport of L-ascorbic acid is described from food to target cells. Transport of ascorbic acid across the plasma membrane is facilitated by members of the SLC23 family, SLC23A1/SVCT1 and SLC23A2/SVCT2. We present in silico models of these transporters that provide new insights into the structure of the SLC23 family. While SVCT1 is mainly responsible for uptake of ascorbic acid from the intestine into the blood and for reabsorption in the kidney, the more broadly expressed transporter SVCT2 delivers ascorbic acid into tissues that are in high demand of the vitamin. The oxidized form of ascorbic acid, dehydroascorbic acid (DHA), is a substrate of the GLUT transporters belonging to the SLC2 family. They play important roles in ascorbic acid recycling, such as in the brain and in erythrocytes. Ascorbic acid serves as an essential co-factor of metal ion-dependent enzymes, keeping their metal ions in the reduced state. In addition, it serves as an effective antioxidant in cells with high metabolic activity such as neurons. Thus, it is not too surprising that changes in expression and function of the SVCTs have nutritional and pathological consequences such as during ageing, malnutrition and chronic alcohol abuse or in cancer, neurodegenerative diseases and chronic inflammation diseases. In the future, SVCT1 and SVCT2 may furthermore prove useful as drug delivery systems, to enhance transport of novel pharmaceutical agents more efficiently across the intestinal epithelium and the blood-cerebrospinal fluid barrier.

Chapter 3 Vitamin C Alimentation via SLC Solute Carriers (Book chapter)

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ISBN: 9781138337992 Year: Pages: 18 Language: English
Publisher: Taylor & Francis
Subject: Medicine (General) --- Biology
Added to DOAB on : 2020-07-28 23:57:37
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Although mortality rates from pneumonia and sepsis are decreasing in many parts of the world, the incidence of these conditions continues to rise, likely due to an increasingly ageing population. Case reports and observational studies indicate a strong association between vitamin C status and infectious conditions, with vitamin C deficiency predisposing individuals to infections, and conversely, infections precipitating a diminished vitamin C status. The requirements for vitamin C increase with the severity of the infectious condition, with gram amounts required to normalize the vitamin C status of critically ill patients. Over the past few years, there has been renewed interest in the role that vitamin C may play in severe infectious conditions. Vitamin C has a plethora of physiological effects, primarily due to its activity as a cofactor for a growing group of biosynthetic and regulatory enzymes, with the potential to regulate thousands of genes and cell signaling pathways. Small intervention studies have indicated that administration of gram doses of vitamin C to patients with pneumonia and sepsis improves organ function and potentially decreases mortality, although this remains to be confirmed in larger trials. The long-term quality of life outcomes of these patients also remains to be determined.

Bioinspired Catechol- Based Systems: Chemistry and Applications

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ISBN: 9783038428138 9783038428145 Year: Pages: 204 DOI: 10.3390/books978-3-03842-814-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2018-03-16 13:15:34
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Catechols are widely found in nature taking part in a variety of biological functions, ranging from the aqueous adhesion of marine organisms to the storage of transition metal ions. Catechol-based natural and biomimetic molecules have thus been the focus of intense research aimed at mimicking and translating this nature-inspired chemistry into new functional materials and systems with tailored properties. The aim of this book is to present a concise survey of the state-of-the-art of basic and applied research on bioinspired catechol systems. It collects several cutting-edge contributions from leading laboratories with a unifying theme of biomimetic principles and approaches. It is hoped that both practitioners and newcomers to the field will by fascinated by the unique potential of biomimetics to pursue new research and innovative solutions in biomedicine and technology.

Antioxidants in Health and Disease Volume 1

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ISBN: 9783038428855 9783038428862 Year: Volume: 1 Pages: X, 436 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology
Added to DOAB on : 2018-05-18 14:34:25
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Several epidemiological studies have demonstrated that oxidative stress is associated with a number of health disorders, including cardiovascular malfunction, certain types of cancer, diabetes mellitus, many other auto-immune diseases, and even ageing. The body possesses multiple mechanisms to counteract oxidative stress, which employ antioxidant compounds that are either naturally generated in situ (endogenous antioxidants) or externally supplied through food (exogenous antioxidants). These antioxidants are able to counteract oxidative stress, thanks to their ability to neutralize excess free radicals and protect the cellular lipids, proteins, and DNA from molecular damage. Exogenous antioxidants from the diet are of increasing interest because of their beneficial role in maintaining good health and in preventing chronic diseases. Indeed, a diet rich in dietary antioxidants, especially from fruits and vegetables, has been correlated with a successful prevention and lower incidence of several degenerative pathologies, including obesity, diabetes, cardiovascular diseases, and cancer.This Special Issue of Nutrients welcomes the submission of manuscripts, either describing original research or reviewing scientific literature, examining the role of diets rich in antioxidant compounds in the prevention of chronic diseases and the characteristics of the antioxidants included in such diets.

Antioxidants in Health and Disease Volume 2

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ISBN: 9783038429395 9783038429401 Year: Volume: 2 Pages: VIII, 264 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology
Added to DOAB on : 2018-05-18 15:15:28
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Several epidemiological studies have demonstrated that oxidative stress is associated with a number of health disorders, including cardiovascular malfunction, certain types of cancer, diabetes mellitus, many other auto-immune diseases, and even ageing. The body possesses multiple mechanisms to counteract oxidative stress, which employ antioxidant compounds that are either naturally generated in situ (endogenous antioxidants) or externally supplied through food (exogenous antioxidants). These antioxidants are able to counteract oxidative stress, thanks to their ability to neutralize excess free radicals and protect the cellular lipids, proteins, and DNA from molecular damage. Exogenous antioxidants from the diet are of increasing interest because of their beneficial role in maintaining good health and in preventing chronic diseases. Indeed, a diet rich in dietary antioxidants, especially from fruits and vegetables, has been correlated with a successful prevention and lower incidence of several degenerative pathologies, including obesity, diabetes, cardiovascular diseases, and cancer.This Special Issue of Nutrients welcomes the submission of manuscripts, either describing original research or reviewing scientific literature, examining the role of diets rich in antioxidant compounds in the prevention of chronic diseases and the characteristics of the antioxidants included in such diets.

Effects of Polyphenol-Rich Foods on Human Health

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ISBN: 9783038971351 9783038971368 Year: Volume: 1 Pages: XII, 430 Language: Englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2018-08-27 16:11:04
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Over the last few years, polyphenol has received a great deal of attention due to their potential beneficial effects on human health. Widely contained in foods commonly consumed in all populations worldwide, polyphenols represent an attractive explanation of the beneficial effects, not only of fruits and vegetables, characteristic components of healthy dietary patterns, but also of other plant-derived foods, such as tea, coffee, and cocoa, which only recently have been exploited as being beneficial for humans. In addition to the numerous biological properties, polyphenols have been indicated as being responsible for a decreased risk of metabolic disorders, cardiovascular disease, and certain cancers. The book addresses original research and reviews of literature concerning polyphenol-rich foods and human health.

Effects of Polyphenol-Rich Foods on Human Health

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ISBN: 9783038971412 9783038971429 Year: Volume: 2 Pages: XII, 350 Language: Englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2018-08-27 16:35:29
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Over the last few years, polyphenol has received a great deal of attention due to their potential beneficial effects on human health. Widely contained in foods commonly consumed in all populations worldwide, polyphenols represent an attractive explanation of the beneficial effects, not only of fruits and vegetables, characteristic components of healthy dietary patterns, but also of other plant-derived foods, such as tea, coffee, and cocoa, which only recently have been exploited as being beneficial for humans. In addition to the numerous biological properties, polyphenols have been indicated as being responsible for a decreased risk of metabolic disorders, cardiovascular disease, and certain cancers. The book addresses original research and reviews of literature concerning polyphenol-rich foods and human health.

Effects of Polyphenol-Rich Foods on Human Health

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ISBN: 9783038971436 9783038971443 Year: Volume: 3 Pages: XII, 344 Language: Englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2018-08-27 16:54:12
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Abstract

Over the last few years, polyphenol has received a great deal of attention due to their potential beneficial effects on human health. Widely contained in foods commonly consumed in all populations worldwide, polyphenols represent an attractive explanation of the beneficial effects, not only of fruits and vegetables, characteristic components of healthy dietary patterns, but also of other plant-derived foods, such as tea, coffee, and cocoa, which only recently have been exploited as being beneficial for humans. In addition to the numerous biological properties, polyphenols have been indicated as being responsible for a decreased risk of metabolic disorders, cardiovascular disease, and certain cancers. The book addresses original research and reviews of literature concerning polyphenol-rich foods and human health.

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