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Recent Advances in the Discovery and Development of Plant-Derived Natural Coumarins and their Analogues as Anti Human Immunodeficiency Virus—Type 1 (HIV-1) Agents

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TLDR
The aim of this review is to summarize research findings for herbal medicines, especially coumarins, which are endowed with the ability to inhibit HIV.
Abstract
The acquired immunodeficiency syndrome (AIDS) is a result of human immunodeficiency virus (HIV) infection which leads to severe suppression of immune functions. AIDS is a real threat to the health of mankind, and the search for effective therapies is still of great importance. However, besides the high cost, there are adverse effects and limitations associated with chemotherapy applied. Thus, herbal medicines are frequently used as an alternative therapy by individuals living with HIV. Numerous plant-derived compounds have been evaluated for inhibitory effects on HIV replication, and many coumarins have been found to inhibit different steps in HIV replication cycle. The aim of this review is to summarize research findings for herbal medicines, especially coumarins, which are endowed with the ability to inhibit HIV.

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Journal ArticleDOI

Review on the Antibacterial Mechanism of Plant-Derived Compounds against Multidrug-Resistant Bacteria (MDR).

TL;DR: In this article, a review of antibiotic resistance strategies produced by multidrug-resistant bacteria and phytochemicals from different classes with documented antimicrobial action against resistant bacteria, either alone or in combination with traditional antibiotics is presented.
Journal ArticleDOI

Biologically active coumarins as inhibitors of HIV-1

Irena Kostova, +1 more
- 28 Aug 2007 - 
TL;DR: The objective of this review is to evaluate data on coumarins’ potent activity with respect to the inhibition of HIV-reverse transcriptase, HIV-integrase or HIV-protease.
Journal ArticleDOI

Antihuman Immunodeficiency Virus Type 1 (HIV-1) Activity of Rare Earth Metal Complexes of 4-Hydroxycoumarins in Cell Culture

TL;DR: The cerium Ce(III, lanthanum La(III), and neodymium Nd(III) complexes were synthesized and studied for the first time for cytotoxicity (on MT-2 cells) and as anti-HIV agents under acute and chronic infection.
Journal ArticleDOI

Reaction of P,P,P-trihalogenbenzo-1,3,2-dioxaphospholes with terminal acetylenes: Phosphorus-carbon bond formation and the ipso-substitution of oxygen by carbon

TL;DR: In this article, a new reaction in phosphorus chemistry, namely, the interaction of 2,2,2-trihalobenzo-1, 3, 2-dioxaphospholes with aryl(alkyl)acetylenes, leads to the formation of benzo[e]-1,2oxaphosphinine derivatives, or “phosphacoumarins.
Journal ArticleDOI

Reactions of Arylenedioxytrihalophosphoranes with Acetylenes: XV.1 Reaction of 2,2,2-Tribromo-4,6-di-tert-butylbenzo-1,3,2λ5-dioxaphospholedioxaphosphole with Pent-1-yne

TL;DR: In this article, the minor isomer was formed as a result of substitution of the oxygen atom in the ortho position with respect to one tert-butyl group of the initial phosphole.
References
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Journal ArticleDOI

Inhibition of human immunodeficiency virus type 1 reverse transcriptase activity by cordatolides isolated from Calophyllum cordato-oblongum.

TL;DR: Cordatolide A and B were re-isolated from Calophyllum cordato-oblongum, an endemic species of Sri Lanka, and found to inhibit HIV-1 reverse transcriptase with IC50 values of 12.3 and 19.0 microM, respectively.
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Molluscicidal constituents of Calophyllum from Madagascar: activity of some natural and synthetic neoflavonoids and khellactones.

TL;DR: The major constituents of the most active Calophyllum species were examined and 5,7-dihydroxy-6-(2-methylbutyryl)-4-phenyl-coumarin presented an interesting molluscicidal activity.
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Capillary electrophoresis of oligonucleotides using a replaceable sieving buffer with low viscosity-grade hydroxyethyl cellulose

TL;DR: In this article, homo-oligomeric deoxynucleotides ranging in length from 12-to-24-mer were separated using a 20 mM Tris(hydroxymethyl)aminomethane-N-Tris (hydroxylmethyl)methyl-3-aminopropanesulfonic acid buffer containing 4% hydroxyethy cellulose of low viscosity as the polymer additive pH 7.0.
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Anti-HIV-1 activity of calanolides used in combination with other mechanistically diverse inhibitors of HIV-1 replication.

TL;DR: These assays suggest that the best combination of agents based on in vitro anti-HIV assay results would include the calanolides in combination with lamivudine and nelfinavir, since this was the only three-drug combination exhibiting a significant level of synergy.
Journal ArticleDOI

Pharmaceutical Properties of Related Calanolide Compounds with Activity against Human Immunodeficiency Virus

TL;DR: Comparing the relative pharmacokinetic parameters and bioavailability of two chemically related natural products which are nonnucleoside inhibitors of reverse transcriptase suggest that selection of the dihydro derivative of (+)-calanolide A may be a reasonable choice for further preclinical development and possible Phase I clinical evaluation.
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