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One Hundred Years of Peptide Chemistry
One Hundred Years of Peptide Chemistry

... thereon, the synthesis of peptides progressed by leaps and bounds. The demand for peptides and proteins is enormous, and increasing rapidly with time. During the past 35 years the discovery of a vast array of naturally occurring pep tides with potent and specific biological activities has further in ...
Ophthalmic uses of Boerhaavia Diffusa L. (Punarnava): Review
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Vaccines and Drugs: Characteristics of Their
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... A vaccine is pharmaceutical product that is a biological medicine, made in, composed of, and/or tested through living systems, and thus difficult to standardize. It functions by eliciting an immune response and is generally for preventive use, although therapeutic vaccines (for example, for treatmen ...
Synthesis and Characterisation of N
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... I hereby certify that I am the sole author of this thesis and that no part of this thesis has been published or submitted for publication. I certify that, to the best of my knowledge, my thesis does not infringe upon anyone’s copyright nor violate any proprietary rights and that any ideas, technique ...
Sex differences in the vulnerability to drug abuse
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... and monkeys [13,14] is reduced to a greater extent than in males by pharmacological and behavioral treatments for drug abuse. Reasons for sex differences in drug abuse are not yet clear. It is possible that, in humans, these differences may reflect changing sociocultural standards [1–3]. It has also ...
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View/Open - IUPUI ScholarWorks
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Drug induced exfoliative dermatitis: state of the art | SpringerLink
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Targeting apicoplasts in malaria parasites
Targeting apicoplasts in malaria parasites

... The first complete picture of apicoplast metabolic pathways was generated from a virtual proteome assembled by combining information about the characteristic signals needed to direct nuclear-encoded proteins to the apicoplast with the function of the genes that carried those signals. The Plasmodium ...
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Drug discovery



In the fields of medicine, biotechnology and pharmacology, drug discovery is the process by which new candidate medications are discovered. Historically, drugs were discovered through identifying the active ingredient from traditional remedies or by serendipitous discovery. Later chemical libraries of synthetic small molecules, natural products or extracts were screened in intact cells or whole organisms to identify substances that have a desirable therapeutic effect in a process known as classical pharmacology. Since sequencing of the human genome which allowed rapid cloning and synthesis of large quantities of purified proteins, it has become common practice to use high throughput screening of large compounds libraries against isolated biological targets which are hypothesized to be disease modifying in a process known as reverse pharmacology. Hits from these screens are then tested in cells and then in animals for efficacy.Modern drug discovery involves the identification of screening hits, medicinal chemistry and optimization of those hits to increase the affinity, selectivity (to reduce the potential of side effects), efficacy/potency, metabolic stability (to increase the half-life), and oral bioavailability. Once a compound that fulfills all of these requirements has been identified, it will begin the process of drug development prior to clinical trials. One or more of these steps may, but not necessarily, involve computer-aided drug design. Modern drug discovery is thus usually a capital-intensive process that involves large investments by pharmaceutical industry corporations as well as national governments (who provide grants and loan guarantees). Despite advances in technology and understanding of biological systems, drug discovery is still a lengthy, ""expensive, difficult, and inefficient process"" with low rate of new therapeutic discovery. In 2010, the research and development cost of each new molecular entity (NME) was approximately US$1.8 billion. Drug discovery is done by pharmaceutical companies, with research assistance from universities. The ""final product"" of drug discovery is a patent on the potential drug. The drug requires very expensive Phase I, II and III clinical trials, and most of them fail. Small companies have a critical role, often then selling the rights to larger companies that have the resources to run the clinical trials.Discovering drugs that may be a commercial success, or a public health success, involves a complex interaction between investors, industry, academia, patent laws, regulatory exclusivity, marketing and the need to balance secrecy with communication. Meanwhile, for disorders whose rarity means that no large commercial success or public health effect can be expected, the orphan drug funding process ensures that people who experience those disorders can have some hope of pharmacotherapeutic advances.
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