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Redox and Metabolic Circuits in Cancer

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456352 Year: Pages: 183 DOI: 10.3389/978-2-88945-635-2 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Oncology
Added to DOAB on : 2019-01-23 14:53:43
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Abstract

Living cells require a constant supply of energy for the orchestration of a variety of biological processes in fluctuating environmental conditions. In heterotrophic organisms, energy mainly derives from the oxidation of carbohydrates and lipids, whose chemical bonds breakdown allows electrons to generate ATP and to provide reducing equivalents needed to restore the antioxidant systems and prevent from damage induced by reactive oxygen and nitric oxide (NO)-derived species (ROS and RNS). Studies of the last two decades have highlighted that cancer cells reprogram the metabolic circuitries in order to sustain their high growth rate, invade other tissues, and escape death. Therefore, this broad metabolic reorganization is mandatory for neoplastic growth, allowing the generation of adequate amounts of ATP and metabolites, as well as the optimization of redox homeostasis in the changeable environmental conditions of the tumor mass. Among these, ROS, as well as NO and RNS, which are produced at high extent in the tumor microenvironment or intracellularly, have been demonstrated acting as positive modulators of cell growth and frequently associated with malignant phenotype. Metabolic changes are also emerging as primary drivers of neoplastic onset and growth, and alterations of mitochondrial metabolism and homeostasis are emerging as pivotal in driving tumorigenesis.Targeting the metabolic rewiring, as well as affecting the balance between production and scavenging of ROS and NO-derived species, which underpin cancer growth, opens the possibility of finding selective and effective anti-neoplastic approaches, and new compounds affecting metabolic and/or redox adaptation of cancer cells are emerging as promising chemotherapeutic tools.In this Research Topic we have elaborated on all these aspects and provided our contribution to this increasingly growing field of research with new results, opinions and general overviews about the extraordinary plasticity of cancer cells to change metabolism and redox homeostasis in order to overcome the adverse conditions and sustain their “individualistic” behavior under a teleonomic viewpoint.

Cadmium Sources and Toxicity

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ISBN: 9783038979845 / 9783038979852 Year: Pages: 130 DOI: 10.3390/books978-3-03897-985-2 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Public Health
Added to DOAB on : 2019-06-26 08:44:06
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Cadmium (Cd) is an environmental toxicant of continuing public health concern worldwide, because total diet studies have shown that Cd is present in virtually all foodstuffs. Consequently, foods that are frequently consumed in large quantities, such as rice, potatoes, wheat, leafy salad vegetables, and other cereal crops, are the most significant dietary Cd sources. Moreover, Cd has chemical propensities that confer the potential to interfere with the physiological functions of calcium and zinc. Evidence of a wide range of diverse, toxic effects of Cd is increasingly apparent. In this collection, environmental Cd exposure is linked to an increased risk of chronic kidney disease that is known to be a cause of morbidity and mortality worldwide. Cd is also implicated in an early onset of menarche and deaths from cancer, especially in the uterus, kidney, and urinary tract. Moreover, Cd-induced kidney injury is replicated in Sprague Dawley rats, as is Cd-induced periodontal disease. Experimental studies suggest that the development of kidneys in fetuses and the function of insulin-producing cells may be adversely affected by Cd and that metformin, an anti-diabetic drug, is ineffective in Cd-intoxicated Wistar rats.

Plant Natural Products for Human Health

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ISBN: 9783038977124 Year: Pages: 514 DOI: 10.3390/books978-3-03897-713-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Therapeutics --- Medicine (General)
Added to DOAB on : 2019-04-05 10:34:31
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Plants have served mankind as an important source of foods and medicines. While we all consume plants and their products for nutritional support, a majority of the world population also rely on botanical remedies to meet their health needs, either as their own “traditional medicine” or as “complementary and alternative medicine”. From a pharmaceutical point of view, many compounds obtained from plant sources have long been known to possess bio/pharmacological activities, and historically, plants have yielded many important drugs for human use, from morphine discovered in the early nineteenth century to the more recent paclitaxel and artemisinin. Today, we are witnessing a global resurgence in interest and use of plant-based therapies and botanical products, and natural products remain an important and viable source of lead compounds in many drug discovery programs.This Special Issue on “Plant Natural Products for Human Health” compiles a series of scientific reports to demonstrate the medicinal potentials of plant natural products. It covers a range of disease targets, such as diabetes, inflammation, cancer, neurological disease, cardiovascular disease, liver damage, bacterial, and fungus infection and malarial. These papers provide important insights into the current state of research on drug discovery and new techniques. It is hoped that this Special Issue will serve as a timely reference for researchers and scholars who are interested in the discovery of potentially useful molecules from plant sources for health-related applications.

Keywords

heat-process --- onion --- calorie restriction --- Amadori rearrangement compounds --- hyperglycemia --- A549 cells --- hinokitiol --- MMPs --- p53/Bax --- antioxidant enzymes --- caspases --- migration --- cannabinoid type 1 receptor --- endoplasmic reticulum stress --- gluconeogenesis --- gomisin N --- lipogenesis --- insulin resistance --- garlic --- ischemia --- heme oxygenase --- reperfusion --- heart --- Keap1 --- Nrf2 --- Neuroprotective --- PC12 cells --- PhGs --- anti-malaria activity --- plants --- natural products --- ethnopharmacology --- Plasmodium parasites --- copaiba --- oleoresin --- essential oil --- sesquiterpenoids --- diterpenoids --- biological activity --- molecular targets --- Astragali Radix --- astragaloside IV --- genistein --- mitochondrial bioenergetics --- oxygen consumption rate --- natural products --- drug design and development --- innovation --- automation --- computational softwares --- bioinformatics --- precision medicine --- omics --- global health --- sweet orange --- bitter orange --- neroli --- orange petitgrain --- mandarin --- lemon --- lime --- grapefruit --- bergamot --- yuzu --- kumquat --- cannabigerol --- Cannabis sativa --- neuroinflammation --- oxidative stress --- phytocannabinoid --- iridoids --- nuclear factor-kappaB --- mitogen-activated protein kinase --- anti-inflammation --- Ziziphus jujuba --- triterpenic acids --- pharmacokinetic study --- acute liver injury --- A? --- AD --- lychee seed --- neuroinflammation --- catechin --- procyanidin A2 --- apoptosis --- cinnamamides --- antistaphylococcal activity --- time-kill assay --- biofilm --- antitubercular activity --- MTT assay --- antifungal activity --- PET inhibition --- toxicity --- structure–activity relationship --- bleeding time --- flavonoid --- morin hydrate --- OH· free radical --- platelet activation --- protein kinase --- thromboembolism --- Glycyrrhiza uralensis --- prenylated flavonoids --- antiproliferation --- differentiation --- melanoma cell --- adjuvant-induced arthritis --- arthritis --- celastrol --- curcumin --- dietary supplements --- EGCG --- green tea --- inflammation --- liposomes --- microbiome --- nanoparticles --- natural products --- resveratrol --- rheumatoid arthritis --- targeted delivery --- traditional medicine --- Tripterygium wilfordii --- triptolide --- Penthorum chinense Pursh --- NAFLD --- hepatic steatosis --- flavonoids --- SIRT1 --- AMPK --- dihydromyricetin --- myocardial hypertrophy --- oxidative stress --- sirtuin 3 --- ginseng --- human-hair-follicle dermal papilla cells --- WNT/?-catenin --- Shh/Gli --- TGF-? --- BMP/Smad --- mouse-hair growth --- Panax notoginseng saponins --- aspirin --- HepaRG cells --- herb–drug interactions --- P. eryngii --- glucans --- inflammation --- inflammatory bowel disease --- medicinal plants --- phytochemicals --- scoulerine --- bergapten --- immunomodulator --- adjuvant --- cytoxicity --- dendritic cells --- immune modulation --- APAP --- acetaminophen --- hepatotoxicity --- hpatoprotection --- paracetamol --- animals --- preclinical studies --- natural products --- small molecules --- phytochemicals --- plants --- fucoidan --- acetaminophen --- Nrf2 --- oxidative stress --- hepatotoxicity --- plant natural product --- drug discovery --- human health

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