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Catalyzed Synthesis of Natural Products

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ISBN: 9783039219483 / 9783039219490 Year: Pages: 82 DOI: 10.3390/books978-3-03921-949-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Organic Chemistry
Added to DOAB on : 2020-01-07 09:08:26
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Natural products have been a source of inspiration for chemists and chemical biologists for many years, and have a special relevance in the chemical space. In recent years, several novel synthetic strategies have appeared, such as diversity-oriented synthesis (DOS), biological-oriented synthesis (BiOS), and function-oriented synthesis (FOS), for accessing complex and functionally diverse molecules. In this manner, the synthesis of natural products has evolved towards simpler and ecological methods using biotransformation, combinatorial chemistry, or organocatalysts. In this issue, Prof. Chojnacka shows demonstrates the use of immobilized lipases as catalysts to aid in the synthesis of phosphatidylcholine enriched with myristic acid. Profs. Vila and Pedro used catalysts derived from (S)-mandelic acid to achieve the catalytic enantioselective addition of dimethylzinc to isatins. Prof. Diez shows the possibility of the obtention of 7,8-carvone epoxides in a diastereoselective manner using proline, quinidine, and diphenylprolinol as organocatalysts. A cheap, simple, clean, and scalable method involves the use of deep eutectic mixtures as reaction media, and Profs. Alonso and Guillena describe the use of this methodology for the enantioselective, organocatalyzed ?-amination of 1,3-dicarbonyl compounds. Biotransformations have been one of the methodologies for more efficient synthesis of natural products. Prof. Wu transforms ergostane triterpenoid antcin K using Psychrobacillus sp. Ak 187. Finally, Prof. Kovayashi reviews the total synthesis and biological evaluation of phaeosphaerides. The reader, through this issue, could gain an idea of the new directions that the synthesis of natural products using catalysts will have in the years to come.

Pleiotropic Action of Selenium in the Prevention and Treatment of Cancer, and Related Diseases

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ISBN: 9783038976929 Year: Pages: 166 DOI: 10.3390/books978-3-03897-693-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology --- Science (General)
Added to DOAB on : 2019-04-05 11:07:22
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This book will cover topics related to the preparation and use of heterogeneous catalytic systems for the transformation of renewable sources, as well as of materials deriving from agro-industrial wastes and by-products. At the same time, the ever-increasing importance of bioproducts, due to the acceptance and request of consumers, makes the upgrade of biomass into chemicals and materials not only an environmental issue, but also an economical advantage.

Drug Delivery Technology Development in Canada

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ISBN: 9783039280049 / 9783039280056 Year: Pages: 352 DOI: 10.3390/books978-3-03928-005-6 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Therapeutics
Added to DOAB on : 2020-01-07 09:21:22
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Canada continues to have a rich history of ground-breaking research in drug delivery within academic institutions, pharmaceutical industry and the biotechnology community.

Keywords

doxorubicin --- MG63 --- Vitamin D --- DOX-Vit D --- hypoxia-induced chemoresistance --- cisplatin --- polymeric micelle --- EGFR-targeted therapy --- STAT3 --- HIF-1 --- GE11 peptide --- pharmacological Inhibitors of HIF-1 and STAT3 --- combination therapy --- pharmacokinetics --- antibodies --- radiolabeling --- biodistribution --- mouse models --- oral formulation --- amphotericin B --- fungal infections --- parasitic infections --- developing world --- drug delivery --- liposomes --- drug delivery systems --- innovation --- lipid nanoparticles --- Metaplex --- triggered drug release --- liposomes --- ultrasound --- magnetic fields --- radiation --- oral delivery --- biological barriers --- co-delivery --- throughput --- sustained delivery --- phospholipid complex --- rosmarinic acid --- bioaccessibility --- dissolution --- TNO gastrointestinal model --- gastrointestinal simulator --- phytosterols --- tocopherols --- liposomes --- canola oil deodorizer distillate --- model orange juice --- virus --- plant --- bacteriophage --- phage display --- drug discovery --- encapsulation --- drug delivery --- blood-brain barrier --- intra-arterial chemotherapy --- malignant gliomas --- primary central nervous system lymphomas --- transdermal drug delivery --- Canada --- skin --- permeation enhancers --- oral, head and neck squamous cell carcinoma --- targeted therapies --- drug delivery systems --- nanoparticles --- controlled drug delivery --- circadian clock --- chronotherapy --- precision medicine --- cationic gemini surfactant --- melphalan --- inclusion complex --- ROESY NMR spectroscopy --- 3D spheroid --- drug-resistant melanoma --- liposome --- water miscible solvents --- remote loading --- staurosporine --- cancer --- gambogic acid --- loading gradients --- mefloquine --- child friendly formulation --- blood-brain barrier (BBB) --- drug delivery --- transient modulation --- HAV6 cadherin peptide --- adenanthin --- magnetic resonance imaging (MRI) --- medulloblastoma --- drug delivery --- pharmaceutics --- drug development --- formulation and dosage form development --- translational research --- biologicals --- small molecules --- clinical trials --- pharmacokinetics --- medical devices --- route of administration --- nifedipine --- emulsion --- flavonoids --- topical formulation --- quercetin --- photostabilizers

Marine Natural Products and Obesity

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ISBN: 9783039211913 / 9783039211920 Year: Pages: 194 DOI: 10.3390/books978-3-03921-192-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Internal medicine
Added to DOAB on : 2019-08-28 11:21:27
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Obesity and related co-morbidities are increasing worldwide and pose a serious health problem. Changes in lifestyle and diet would be the best remedies to fight obesity; however, many people will still rely on medical aid. Marine organisms have been prolific in the production of bioactive compounds for many diseases, e.g., cancer, and promise to be an excellent source for natural-derived molecules and novel nutraceuticals. Bioactive compounds with beneficial activities towards obesity have been described from diverse marine organism including marine algae, bacteria, sponges, fungi, crustaceans or fish. This Special Issue will highlight the progress in the following topics: Bioactive compounds for the treatment of obesity and obesity-related co-morbidities (diabetes, fatty liver, hyperlipidemia) from marine organisms; the isolation of novel compounds, the bioactivity screening of marine organisms and the elucidation of molecular mode of action of marine bioactive compounds.

Curcumin in Health and Disease

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ISBN: 9783039214495 / 9783039214501 Year: Pages: 274 DOI: 10.3390/books978-3-03921-450-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 11:49:15
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The plant-derived polyphenol curcumin has been used in promoting health and combating disease for thousands of years. Its therapeutic effects have been successfully utilized in Ayurvedic and Traditional Chinese Medicine in order to treat inflammatory diseases. Current results from modern biomolecular research reveal the modulatory effects of curcumin on a variety of signal transduction pathways associated with inflammation and cancer. In this context, curcumin’s antioxidant, anti-inflammatory, anti-tumorigenic, and even anti-metastatic activities are discussed. On the cellular level, the reduced activity of several transcription factors (such as NFkB or AP-1) and the suppression of inflammatory cytokines, matrix degrading enzymes, metastasis related genes and even microRNAs are reported. On functional levels, these molecular effects translate into reduced proliferative, invasive, and metastatic capacity, as well as induced tumor cell apoptosis. All these effects have been observed not only in vitro but also in animal models. In combination with anti-neoplastic drugs like Taxol, kinase inhibitors, and radiation therapy, curcumin potentiates the drugs’ therapeutic power and can protect against undesired side effects. Natural plant-derived compounds like curcumin have one significant advantage: They do not usually cause side effects. This feature qualifies curcumin for primary prevention in healthy persons with a predisposition to cancer, arteriosclerosis, or chronic inflammatory diseases. Nonetheless, curcumin is considered safe, although potential toxic effects stemming from high dosages, long-term intake, and pharmacological interactions with other compounds have yet to be assessed. This Special Issue examines in detail and updates current research on the molecular targets, protective effects, and modes of action of natural plant-derived compounds and their roles in the prevention and treatment of human diseases.

Keywords

brain ischemia --- curcumin --- Alzheimer’s disease --- neurodegeneration --- amyloid --- tau protein --- autophagy --- mitophagy --- apoptosis --- genes --- glioblastoma multiforme --- autophagy --- mitophagy --- curcumin --- chaperone-mediated autophagy --- Akt/mTOR signaling --- transmission electron microscopy --- Curcuma longa --- turmeric tuber --- Zingiberaceae --- TLC bioautography --- antimicrobial agents --- ImageJ --- TLC-MS --- hydrostatic counter-current chromatography --- centrifugal partition chromatography --- curcumin --- death receptor --- apoptosis --- curcumin --- anticancer --- structure activity relationship --- cellular pathway --- mechanism of action --- delivery system --- wound --- wound healing --- diet --- nutrition --- micronutrients --- macronutrients --- curcumin --- amino-acids --- vitamins --- minerals --- curcumin --- oxidative metabolites --- inflamm-aging --- cancer --- metabolic reprogramming --- direct protein binding --- IL-17 --- STAT3 --- SHMT2 --- ageing --- anti-cancer --- autophagy --- microbiota --- senescence --- senolytics --- curcumin --- transthyretin --- amyloidosis --- protein aggregation --- protein misfolding --- drug discovery --- curcumin --- renal cell cancer --- tumor growth --- tumor proliferation --- cell cycling --- curcumin --- reflux esophagitis --- gastroprotection --- gastric ulcer --- Helicobacter pylori --- gastric cancer --- curcumin --- complementary medicine --- cancer treatment --- supportive care --- antioxidants --- anti-inflamation --- ulcerative colitis --- Crohn’s disease --- necrotizing enterocolitis --- curcumin --- inflammatory bowel disease --- curcumin --- silica --- chitosan --- nanoparticles --- anti-tumor --- antioxidant activity --- n/a

Marine Anti-inflammatory Agents

Authors: ---
ISBN: 9783039215720 / 9783039215737 Year: Pages: 248 DOI: 10.3390/books978-3-03921-573-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2019-12-09 11:49:16
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Acute inflammation is a highly regulated process, and its dysregulation can lead to the development of a chronic inflammatory state which is believed to play a main role in the pathogenesis of many diseases, including cancer. In recent years, the need to find new anti-inflammatory molecules has raised the scientific community´s interest for marine natural products. In this regard, the marine environment represents a source for isolating a wealth of bioactive compounds. In this Special Issue, the reported products have been obtained from microalgae, sea cucumber, octopus, squid, red alga-derived fungus, cnidarians, hard-shelled mussel, and sponges.

Keywords

THP-1 macrophages --- anti-inflammatory --- TLR4 --- NF-?B --- MAPK --- SPR analysis --- glycolipids --- MGDG --- skin --- inflammation --- epidermal hyperplasia --- microalgae --- Isochrysis galbana --- Frondanol --- Cucumaria frondosa --- DSS colitis --- colon inflammation --- zoantharia --- Tropical Eastern Pacific --- Zoanthus pulchellus --- zoanthamine --- inflammation --- fucoxanthin --- inflammation --- epidermal hyperplasia --- UVB --- photoprotection --- 6-bromoindole --- Geodia barretti --- anti-inflammatory activity --- dendritic cells --- T cell differentiation --- poor blood circulation --- Ecklonia cava --- phlorotannins --- pyrogallol-phloroglucinol-6,6-bieckol --- functional ingredients --- endothelial cell death --- vascular smooth muscle cell proliferation and migration --- inflammation --- anti-inflammatory --- bioactive molecules --- microalgae --- polysaccharides --- carotenoids --- polyunsaturated fatty acids --- fucoxanthin --- ultraviolet B --- denervation --- seafood waste --- polyunsaturated fatty acid --- NO inhibition --- fish oil --- marine nutraceuticals --- fish oil --- omega-3 --- eicosapentaenoic acid --- docosahexaenoic acid --- inflammation --- eicosanoid --- cytokine --- surgery --- critical illness --- parenteral nutrition --- signal transducer and activator of transcription 3 (STAT3) --- matrix metalloproteinases-9 (MMP-9) --- interleukin (IL) --- lipopolysaccharide (LPS) --- acute sickness behavior --- acute lung injury (ALI) --- prostaglandins --- clavulones --- punaglandins --- thromboxane --- inflammation --- marine vertebrates --- marine invertebrates --- diatoms --- macroalgae --- fucoxanthin --- rosmarinic acid --- NRLP3 --- inflammasome --- anti-oxidative --- anti-inflammatory --- photo-protection --- UVB

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MDPI - Multidisciplinary Digital Publishing Institute (6)


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CC by-nc-nd (6)


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eng (6)


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2019 (6)