Posted by admin on Mar 31, 2018 in |
The main roles of bile acids as amphiphilic molecules are the micellar solubilization of the lipids, in the course of the welding process and the regulation of cholesterol homeostasis, which is essential as a precursor for the synthesis of bile acids. From the hydrophobic and hydrophilic surfaces of bile acids directly depends the level of their attachment to the receptors, ion channels and their effectiveness in the solubilization of lipid (hydrophobic drugs). The toxicity of membrane of bile acids is mainly determined by their hydrophobicity. We have synthesized the methyl ester of 7α-hydroxy-3-oxo-5β-cholanoic acid. We have reviewed and discussed the effects of the structure of bile acids to their hydrophobicity, which is expressed by the retention parameters by reverse phase chromatography, and hydrophobic properties, which is represented by partition coefficient 1-octanol / water. It also discusses the role of the lipophilicity of bile acids in their interactions with biological...
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Posted by admin on Mar 31, 2018 in |
Phyllanthus amarus Schum and Thonn herb is in traditional medicine for more than 3000 years. It belongs to a family of Euphorbiaceae and commonly known by the name of carry me seed, stone breaker, gala of wind, etc. It is a branching annual herb of 30 – 60 cm height widely spread throughout tropics and sub-tropics as a weed. Phyllanthus amarus is gaining momentum for its hepatoprotective, anti-carcinogenic, anti-bacterial, anti-viral, anti-inflammatory and more activities as it contains different combinations of secondary metabolites, which render them medicinal properties. The major class of bioactive compounds like alkaloids, flavonoids, lignans, sterols, tannins, triterpenes and volatile oils has been isolated. Lignans like phyllanthin and hypophyllanthin, flavonoids like quercetin were isolated from the leaves of P. amarus. This review is an effort to represent the phytochemicals and their pharmacological properties which constantly addresses a challenge because of a large number of compounds present as a mixture in the extract with trace...
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Posted by admin on Mar 31, 2018 in |
Cancer is a major public health burden in both developed and developing countries. It is actually a group of many related diseases that all have to do with cells. It is one of the major causes of death worldwide where the number of cancer patients is in continuous rise. It is a major public problem whose estimated worldwide new incidence is about 6 million cases per year. It is the second major cause of deaths after cardiovascular diseases. There is a constant demand for new therapies to treat and prevent this life-threatening disease. The plant kingdom produces naturally occurring secondary metabolites which are being investigated for their anticancer activities leading to the development of new clinical drugs. Worldwide effects are ongoing to identify new anticancer compounds from plants. In recent years owing to the fear of side effects people prefer more and more use of natural plant products for cancer. For these reasons, World Health Organization (WHO) supports the use of traditional medicines which are efficacious and non toxic....
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Posted by admin on Mar 31, 2018 in |
The process of drug development and drug discovery is very challenging, expensive and time consuming. It has been accelerated due to development of computational tools and methods. Over the last few years, computer aided drug design (CADD) also known as in silico screening has become a powerful technique because of its utility in various phases of drug discovery and development through various advanced features. In silico screening also paves path for the synthesis and screening of selected compounds for better therapeutics. This review focuses on computational chemistry and computer aided drug discovery which are aimed to cover a wide range of computational approaches including new methodologies as well as practical aspects in this area. This review provides an insight about the developmental chain, approaches and applications of CADD; various data sources; computational methods for the discovery of new molecular entities; clinically approved drugs developed through CADD; and also summarizes the crucial steps of in silico drug designing like homology modelling, docking, multi-target searching and design, pharmacophore development, conformation generation...
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Posted by admin on Feb 28, 2018 in |
Lycopene, a non-provitamin a carotenoid, found in tomatoes, processed tomato products and other fruits, due to which red to pink coloration is observed. Among all the dietary carotenoids, lycopene is one of the most potent naturally and abundantly occurring antioxidant. Lycopene has unique structural features and chemical features which contribute to specific biological properties and pharmacological activities. The antioxidant potential of lycopene may be responsible for its associated health benefits. Dietary consumption of tomatoes and tomato products rich in lycopene are reported to be associated with a decreased risk of chronic diseases, like cancer and various cardiovascular diseases. Further investigations will be required to understand and evaluate mechanism whereby lycopene and its metabolites are proven to possess biological activities in human. This review summarizes the current understanding of lycopene with respect to its role in human health and prevention of various...
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