The Methods of Medication Discovery Nowadays
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by: emilybutler
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The twenty first century has disclosed new possibilities in the field of drug research and development but it still remains very high-priced process. The usual total value per drug development differs from US$ 897 million to US$ 1.9 billion. Scientists want usually fifteen years to discover all the specific features of this or that drug. At first in the development process chemists are to identify a target (e.g. protein) and than take various drugs that can interact with the target. Then come medical experiments that are the most expensive and important phase of the research because it requires to have a lot of governmental approvals. Food and Drug Administration (FDA) gives approvals to the drugs that would be made in the US. As you may see drug discovery is an expensive and long process these days.
The greatest way of finding good drug candidate is investigation of the interaction of target protein with various compounds that are selected by scientists from special compound lists where these compounds are kept. Usually scientists utilize high-throughput screening (HTS) for this type of testing. There are also commercially available compound lists that contain different compounds up to several thousands of samples. There are some exemplars that present brilliant results with interacting the target. They are promising exemplars and chemists usually call them hits. After that some hits are taken to lead compounds. Further they will be refined and modified to have better outcome from their interaction and less side-effects.
One may find several different methods of drug design & discovery today. There are given a few modes of finding medication candidate and you could find their highs and lows:
1. Virtual screening (VS) based on the computing deduced or simulated genuine screening;
The benefits that were seen during the tests are:
- low costs, no compounds have to be bought externally or synthesized by a scientist;
- chemists may investigate different compounds that are yet in project;
- HTS is rather expensive and virtual screening presents a possibility to choose a number of useful compounds for following HTS tests;
- a huge amount of virtual elements to select from.
There are accessible a large number of different molecules in VS tests in comparison with the number that gives HTS method. But we must claim about the shortage of virtual screening. That is impossibility to observe real interaction of elements.
2. High-throughput method (HTS) is a real screening and it can investigate the reaction of thousands of elements every day. So scientists get real outcome during this method of medication discovery. But it requires great funds.
Computational means may be used to forecast or simulate how a particular compound reacts with a given protein target. It is made for determination the results and chemical features of drug designing and future characteristics of the medication as a remedy. Nowadays chemists use 3 basic methods for virtual screening in drug discovery procedure: Molecular Docking, Quantitative Structure-Activity Relationships (QSAR) and Pharmacopoeia Mapping. To receive much more facts about drug discovery service use our web page.
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