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CYP-450
CYP-450

...  The physicochemical properties of drugs that predispose (使偏向于) them to good absorption, such as lipophilicity (亲脂性) , are impediment(妨 碍) to their elimination.  As a consequence, the elimination of drugs normally requires their conversion into water soluble compounds by a process of metabolism, w ...
Simultaneous Quantitative Determination of Candesartan cilexetil
Simultaneous Quantitative Determination of Candesartan cilexetil

... formulat ions and biological fluids. The objective of this and Candesartan cilexetil (40 µg/mL) for brand II investigation is to develop an efficient, simple, rapid, (CA NDELONG-H®). Each mixtu re was then filtered validated and reliable method for the routine quality separately through a nylon memb ...
Volume 13.4
Volume 13.4

... pharmacies at the state level. However, as compounding diminished, the state boards did not necessarily require USP or NF volumes actually be in the required library of the pharmacies. ...
Development and validation of gas chromatography method for low
Development and validation of gas chromatography method for low

... chloride respectively. No interference of organic solvents used in the synthesis was observed. Performance of the method was assessed by evaluating the recovery, repeatability, reproducibility, linearity and limits of detection and quantification. The proposed method has a potential for application ...
PDF (Paediatric drug development)
PDF (Paediatric drug development)

... profiling and permeability assessment were performed following formulation development. The formulation process highlighted current shortcomings in techniques for taste assessment of pharmaceutical preparations resulting in early stage research into a novel in vitro cell based assay. The formulation ...
SIMULTANEOUS ESTIMATION OF CETRIZINE HYDROCHLORIDE AND  PHENYLPROPANOLAMINE HYDROCHLORIDE BY HIGH PERFORMANCE THIN LAYER 
SIMULTANEOUS ESTIMATION OF CETRIZINE HYDROCHLORIDE AND  PHENYLPROPANOLAMINE HYDROCHLORIDE BY HIGH PERFORMANCE THIN LAYER 

... Cetrizine (CET) standard stock solution: (2500 µg/ml)  Standard  CET  25.0  mg  was  weighed  and  transferred  to  a  10  ml  volumetric  flask  and  dissolved  in  methanol.  The  flask  was  shaken  and  volume  was  made  up  to  the  mark  with  methanol  to  give  a  solution containing 2500 µ ...
PIRACETAM ñ AN OLD DRUG WITH NOVEL PROPERTIES?
PIRACETAM ñ AN OLD DRUG WITH NOVEL PROPERTIES?

... The doses necessary to achieve rheological and/or antiplatelet effects are about 2ñ4 times higher than the doses required to obtain nootropic effects (35). However, even at these elevated doses, piracetam is well tolerated and only few adverse effects have been recorded in human subjects (5, 10). Th ...
synthesis and properties of v3+ analogues of jarosite-group
synthesis and properties of v3+ analogues of jarosite-group

... redox-based hydrothermal technique. These compounds were subsequently used for the measurement of the magnetic properties of the synthesized species (Grohol et al. 2001, Papoutsakis et al. 2002). The first naturally occurring V3+ mineral of the alunite supergroup (Jambor 1999) was recently discovere ...
Download CV
Download CV

... Thomas AJ, Olkowski JH, Vornov JJ, Slusher BS. “Toxicity induced by a polyglutamated folate analog is attenuated by NAALADase inhibition.” Brain Research, 1999, 843, 48-52 Tiffany CW, Lapidus RG, Merion A, Calvin DC, Slusher BS. “Characterization of the enzymatic activity of PSM: Comparison with bra ...
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Corrosion Control Treatment Answer Key

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Converting Chemical Names to Structures with
Converting Chemical Names to Structures with

... • Additive names describe names composed of multiple components where no component loses any atoms, including hydrogen. There are many different types of additive nomenclature, but salts (copper acetate, sodium chloride) are particularly well known. • Multiplicative names exhibit the replication of ...
annex iv: biowaiver request for additional strengths
annex iv: biowaiver request for additional strengths

... and their bioavailabilities (rate and extent) after administration in the same molar dose lie within acceptable predefined limits. These limits are set to ensure comparable in vivo performance, i.e. similarity in terms of safety and efficacy. In bioequivalence studies, the plasma concentration time ...
Morphine Glucuronidation and Glucosidation Represent
Morphine Glucuronidation and Glucosidation Represent

... UDP-Glc as cofactor to form glucoside conjugates (Senafi et al., 1994; Mackenzie et al., 2003; Tang et al., 2003; Toide et al., 2004; Obach et al., 2006; Buchheit et al., 2011). In contrast, UGT3A1 and UGT3A2 use sugar donors other than UDP-GlcUA (Mackenzie et al., 2008, 2011). Notably, UGT3A2 gluco ...
Toxicity of Nutmeg (Myristicin): A Review
Toxicity of Nutmeg (Myristicin): A Review

... III. CONCLUSIONS In general, excessive consumption of nutmeg exceeding “toxic level” can give negative effects to health because it can induce neurotoxicity in brain. To present, no holistic treatment was develop to prevent nutmeg intoxication. Thus, consuming nutmeg in higher amount should be avoid ...
[27] Kumar, RMNV- Eds. Handbook of Particulate Drug Delivery,2008
[27] Kumar, RMNV- Eds. Handbook of Particulate Drug Delivery,2008

... keratinocytes and fibroblasts. However the complex structure of native tissue requires a composite scaffolding material. Bio-mimicking approaches with other natural extra-cellular materials are proposed. Layering silk fibroin with collagen-I enhances the attachment and dispersion of keratinocytes, w ...
Jawahar Chigurupati Chem 151 Essay Final Quinine
Jawahar Chigurupati Chem 151 Essay Final Quinine

... Since  the  advent  of  synthetically  available  quinine,  several  newer  and  more  efficient   quinine  total  syntheses  have  been  discovered.  However,  they  still  cannot  compete  with  the   natural  derivation  process  in  terms ...
CURRICULUM VITAE
CURRICULUM VITAE

... Recent discovery of an allosteric binding site on the cannabinoid CB1 receptor invites new approaches to potential drugs that modulate cannabinoid signaling for therapeutic benefit. Several GPCRs have been shown to contain allosteric binding sites for endogenous/synthetic ligands which are discrete ...
Liposomes as drug delivery system
Liposomes as drug delivery system

... and Trypanosoma cruzi. Even though the in vivo effect against the parasite is not significantly better than the free drug, the liposomes did have a protective effect against the toxicity of the drugs used in certain instances (Papagiannaros et al., 2005). The objective of encapsulating antimalarials ...
Engineering of polyketide biosynthetic pathways for bioactive
Engineering of polyketide biosynthetic pathways for bioactive

... yielded a novel chlorinated molecule 2-chloro-resveratrol. This demonstrated that biosynthetic enzymes from different sources can be recombined like legos to make various plant natural products, which is more efficient (2-3 days) than traditional extraction from plants (months to years). Phenylalani ...
WHO monographs on medicinal plants commonly used in the Newly
WHO monographs on medicinal plants commonly used in the Newly

... Each medicinal plant and the specific plant part used as crude drug material contain active or major chemical constituents with a characteristic profile that can be used for chemical quality control and quality assurance. These constituents are described in the Major chemical constituents. Descripti ...
Natural Treatment Alternative for Psoriasis
Natural Treatment Alternative for Psoriasis

... are self-administering a form of psoralen– UVA (PUVA) therapy by consuming dong quay and then receiving ultraviolet light therapy or natural sunlight. Koo & Arain, 1998 studied patients with psoriasis, two-thirds patients got complete relief from their disease after oral treatment with this plant ex ...
Pharmacogenetic studies of paclitaxel in ovarian cancer pharmacodynamics and
Pharmacogenetic studies of paclitaxel in ovarian cancer pharmacodynamics and

... supply of blood products etc. In later years the identification of disease specific targets such as the Bcr-Abl tyrosine kinase in chronic myeloid leukemia and the development of specific inhibitors like imatinib have been shown to be successful (Druker 2002). However, at the same time as new chemot ...
week5
week5

... Computational program for rational drug design from peptides 1. Complex structure determination: Find the initial configuration for the bound complex using a docking ...
A SURVEY BASED STUDY IN CURRENT SCENARIO OF GENERIC AND... Research Article
A SURVEY BASED STUDY IN CURRENT SCENARIO OF GENERIC AND... Research Article

... a branded generic. Branded generic drugs have names derived from a combination of the manufacturer’s name and the non-proprietary name. This enables the manufacturer to market the product in a way similar to the proprietary product [2]. Generic drugs are cheaper in comparison to branded drugs becaus ...
PUBLIC MEETING ON THE SAFETY OF DIETARY SUPPLEMENTS CONTAINING EPHERDINE ALKALOIDS
PUBLIC MEETING ON THE SAFETY OF DIETARY SUPPLEMENTS CONTAINING EPHERDINE ALKALOIDS

... ?ood and Drug Administration ...
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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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