نتایج جستجو برای: natural compounds

تعداد نتایج: 689587  

2014
Hee Soong Jung Yun Lim Eun-Kyoung Kim

Natural compounds have been used to develop drugs for many decades. Vast diversities and minimum side effects make natural compounds a good source for drug development. However, the composition and concentrations of natural compounds can vary. Despite this inconsistency, half of the Food and Drug Administration (FDA)-approved pharmaceuticals are natural compounds or their derivatives. Therefore...

Journal: :Molecules 2015
Izabela Sadowska-Bartosz Grzegorz Bartosz

Non-enzymatic protein glycosylation (glycation) contributes to many diseases and aging of organisms. It can be expected that inhibition of glycation may prolong the lifespan. The search for inhibitors of glycation, mainly using in vitro models, has identified natural compounds able to prevent glycation, especially polyphenols and other natural antioxidants. Extrapolation of results of in vitro ...

2011
Aude Munin Florence Edwards-Lévy

Natural polyphenols are valuable compounds possessing scavenging properties towards radical oxygen species, and complexing properties towards proteins. These abilities make polyphenols interesting for the treatment of various diseases like inflammation or cancer, but also for anti-ageing purposes in cosmetic formulations, or for nutraceutical applications. Unfortunately, these properties are al...

Journal: :Fortschritte der Chemie organischer Naturstoffe = Progress in the chemistry of organic natural products. Progres dans la chimie des substances organiques naturelles 2003
Albert Gossauer

Imagine that you get such certain awesome experience and knowledge by only reading a book. How can? It seems to be greater when a book can be the best thing to discover. Books now will appear in printed and soft file collection. One of them is this book monopyrollic natural compounds including tetramic acid derivatives. It is so usual with the printed books. However, many people sometimes have ...

Journal: :Natural product reports 2010
Inder Pal Singh Jasmeen Sidana Sandip B Bharate William J Foley

This review covers the synthetic aspects of various naturally occurring phloroglucinols, describing syntheses of 42 compounds and citing 137 references.

2012
Annalisa Lucera Cristina Costa Amalia Conte Matteo A. Del Nobile

In agreement with the current trend of giving value to natural and renewable resources, the use of natural antimicrobial compounds, particularly in food and biomedical applications, becomes very frequent. The direct addition of natural compounds to food is the most common method of application, even if numerous efforts have been made to find alternative solutions to the aim of avoiding undesira...

2013
Sadhana Singh Ashok Kumar Gupta Amita Verma

Natural antioxidants compounds are present in leaf, rhizome, stem, fruits, vegetables, tea etc. They are recognized as important compounds in conferring stability against oxidation in vitro. Natural antioxidant compounds can be classified into Exogenous antioxidants and Endogenous antioxidants, Enzymatic and NonEnzymatic antioxidants. Naturally occurring antioxidants compounds are carotenoids, ...

2013
Tullia Maraldi

Reactive oxygen species (ROS) are cellular signals generated ubiquitously by all mammalian cells, but their relative unbalance triggers also diseases through intracellular damage to DNA, RNA, proteins, and lipids. NADPH oxidases (NOX) are the only known enzyme family with the sole function to produce ROS. The NOX physiological functions concern host defence, cellular signaling, regulation of ge...

2011
Maria Kovacsova Andrej Barta Jana Parohova Stanislava Vrankova Olga Pechanova

Natural polyphenols have been reported to exert beneficial effects in preventing cardiovascular diseases but their neuroprotective mechanisms were studied much less. The review is focused on biochemical pathways and molecular neuroprotective mechanisms of natural polyphenols in the brain particularly; of course in close relation to neurophysiological and pathophysiological consequences. This re...

Journal: :Current pharmaceutical design 2009
Clara Balsano Anna Alisi

Reactive oxygen species (ROS), as well as reactive nitrogen species (RNS) play either harmful or beneficial role in biological systems. Beneficial effects of ROS include physiological roles in cellular responses against infectious agents and in several cellular signalling pathways. Harmful effects are due to high concentrations of ROS, which can damage biomolecules, including lipids, proteins a...

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