Scientific Literature

In vitro drug interactions of cytochrome p450: an evaluation of fluorogenic to conventional substrates

Clinically observed drug interactions with cytochrome p450 (p450) enzymes have increased the...

>> read more

In vitro studies on enhancing effect of sodium glycocholate on transbuccal permeation of morphine hydrochloride

During the perioperative period, gastric emptying rate and first-pass metabolism limit the use...

>> read more

Animal Models of Cardiovascular Diseases

Cardiovascular diseases are the first leading cause of death and morbidity in developed...

>> read more

Are MDCK cells transfected with the human MRP2 gene a good model of the human intestinal mucosa?

This purpose of this study was to investigate whether Madin-Darby canine kidney cells...

>> read more

Assessment of the first and second generation antihistamines brain penetration and role of P-glycoprotein

Purpose: The sedating effect of first generation H1-antihistamines has been...

>> read more

BCS Biowaivers

Biopharmaceutics Classification Systems is a regulatory mechanism through which you can obtain a...

>> read more

Bile salt transporters: molecular characterization, function, and regulation

Molecular medicine has led to rapid advances in the characterization of hepatobiliary transport...

>> read more

Biomimetic modeling of oxidative drug metabolism

The prediction of drug metabolism is an important task in drug development. Besides...

>> read more

Biopharmaceutic classification system: a scientific framework for pharmacokinetic optimization in drug research

The tenets of biopharmaceutics, solubility and permeability, are of pivotal importance in new...

>> read more

Biowaiver monographs for immediate release solid oral dosage forms: Ranitidine hydrochloride

Literature and experimental data relevant to the decision to allow a waiver of in vivo...

>> read more

Caco-2 monolayers in experimental and theoretical predictions of drug transport

This review examines the use of Caco-2 monolayers in the prediction of intestinal drug...

>> read more

Central nervous system drug disposition: the relationship between in situ brain permeability and brain free fraction

The dispositions of 50 marketed central nervous system (CNS) drugs into the brain have been...

>> read more

Characterization of the human colon carcinoma cell line (Caco-2) as a model system for intestinal epithelial permeability

Caco-2 cells develop morphologic characteristics of normal enterocytes when grown on plastic...

>> read more

Correlation of plasma clearance of 54 extensively metabolized drugs between humans and rats: mean allometric coefficient of 0.66

PURPOSE: To evaluate the distribution of allometric exponents for relationship of total plasma...

>> read more

Cryopreserved human hepatocytes as alternative in vitro model for cytochrome P450 induction studies

Induction of cytochrome P450 (CYP) by drugs is one of major concerns for drug-drug interactions. ...

>> read more

Cytochrome P450 in vitro reaction phenotyping: a re-evaluation of approaches used for P450 isoform identification

Marker substrates, chemical inhibitors, and inhibitory antibodies are important tools for the...

>> read more

Development and validation of a 96-well equilibrium dialysis apparatus for measuring plasma protein binding

A 96-well equilibrium dialysis block was designed and constructed that is compatible with most...

>> read more

Drug-drug interaction mediated by inhibition and induction of P-glycoprotein

P-glycoprotein (P-gp), the most extensively studied ATP-binding cassette transporter, functions...

>> read more

Drug-protein binding and blood-brain barrier permeability

The permeability surface area (PS) product, an index of permeability of the blood-brain barrier...

>> read more

Effects of prototypical microsomal enzyme inducers on cytochrome P450 expression in cultured human hepatocytes

Cultured human hepatocytes are a valuable in vitro system for evaluating new molecular...

>> read more

EMA Guideline on the Investigation of Drug Interactions

The potential for interactions between new medicinal products and already marketed drugs should...

>> read more

Evaluation of drug-drug interactions in the hepatobiliary and renal transport of drugs

Recent studies have revealed the import role played by transporters in the renal and...

>> read more

Evaluation of the MDR-MDCK cell line as a permeability screen for the blood-brain barrier

The objectives of this study were to (1) characterize MDR-MDCK monolayers as an in...

>> read more

FDA Drug Transporter Guidance 2012

This guidance provides recommendations for sponsors of new drug applications (NDAs) and...

>> read more

Flavin-containing monooxygenase activity in human liver microsomes

Human liver microsomal flavin-containing monooxygenase activity has been studied using...

>> read more

Glucuronidation and sulfation of 7-hydroxycoumarin in liver matrices from human, dog, monkey, rat, and mouse

Uridine 5′-diphospho-N-acetylgalactosamine glycosyltransferases (UGTs) and...

>> read more

Guidance for Industry Chronic Cutaneous Ulcer and Burn Wounds — Developing Products for Treatment

The purpose of this guidance is to provide recommendations to sponsors for the development of...

>> read more

Human and animal hepatocytes in vitro with extrapolation in vivo

Human and animal hepatocytes are now being used as an in vitro technique to aid drug...

>> read more

Human drug metabolism and the cytochromes P450: application and relevance of in vitro models

The cytochromes P450 (CYPs) constitute a superfamily of hemoprotein enzymes that are responsible ...

>> read more

Human UDP-glucuronosyltransferases: metabolism, expression, and disease.

In vertebrates, the glucuronidation of small lipophilic agents...

>> read more

In silico prediction of blood–brain barrier permeation

This review examines the progress that is being made towards the in silico prediction of brain...

>> read more

Inter-species comparison of 7-hydroxycoumarin glucuronidation and sulfation in liver S9 fractions

DP glycosyltransferases (UGTs) and sulfotransferases (SULTs) are phase II enzymes that interact...

>> read more

Is the permeability coefficient Kp a reliable tool in percutaneous absorption studies?

In percutaneous absorption studies the potency of penetration of chemical substances is often...

>> read more

Linear Correlation of the Fraction of Oral Dose Absorbed of 64 Drugs Between Humans and Rats

The preliminary work was presented at the meeting of the Expert Panel on Biopharmaceutics Drug...

>> read more

Liquid chromatography/atmospheric pressure ionization-mass spectrometry in drug metabolism studies

The study of the metabolic fate of drugs is an essential and important part of the drug...

>> read more

Making better drugs: decision gates in non-clinical drug development

Drug development is a risky business. Success or failure often depends on selecting one or two...

>> read more

Membrane Transporters in Drug Development

Membrane transporters can be major determinants of the pharmacokinetic, safety and efficacy...

>> read more

Modulation of breast cancer resistance protein (BCRP/ABCG2) gene expression using RNA interference

Overexpression of the breast cancer resistance protein (BCRP/ABCG2) confers multidrug resistance ...

>> read more

Myocardial Infarction Model in Pigs

Evaluation of a Novel Molecular Therapy as Means for Restoring Cardiac Function Subsequent to a...

>> read more

Optimization in Drug Discovery-In Vitro Methods

A panel of researchers and experts from leading universities and major pharmaceutical companies...

>> read more

P-glycoprotein limits the brain penetration of nonsedating but not sedating H1-antagonists

The present study evaluates the impact of P-glycoprotein (P-gp) on plasma-brain disposition and...

>> read more

Permeability of porcine nasal mucosa correlated with human nasal absorption

The Ussing chamber diffusion system was used as a model to study the apparent permeability...

>> read more

pH-dependent dissolution in vitro and absorption in vivo of weakly basic drugs: development of a canine model

PURPOSE: The aim of this research was to develop a pH-dependent canine absorption model for...

>> read more

PH-metric log P 11. pKa determination of water-insoluble drugs in organic solvent-water mixtures

Apparent acid dissociation constants (p(s)Ka) of two water-insoluble drugs, ibuprofen and...

>> read more

Pharmacokinetics and metabolism of antipyrine (phenazone) after intravenous and oral administration

To 12 healthy male volunteers, 6 smokers and 6 non-smokers, 10 mg/kg antipyrine (phenazone) was...

>> read more

Pharmacokinetics of fluvastatin after single and multiple doses in normal volunteers

The pharmacokinetics of fluvastatin, a potent inhibitor of hydroxymethylglutaryl-CoA reductase...

>> read more

Physicochemical profiling in drug research: a brief survey of the state-of-the-art of experimental techniques

This review begins with a general presentation of the new paradigm of drug discovery, with its...

>> read more

Prediction of the hepatic and renal clearance of transporter substrates in rats using in vitro uptake experiments

The clearance route and the absolute values for hepatic and renal clearance of drugs are...

>> read more

Rational use of in vitro P-glycoprotein assays in drug discovery

P-glycoprotein (P-gp) affects the absorption, distribution, and clearance of a variety of...

>> read more

Role of pharmacokinetics and metabolism in drug discovery and development

Drug research encompasses several diverse disciplines united by a common goal, namely the...

>> read more

Scientific perspectives on drug transporters and their role in drug interactions

Recently, increased interest in drug transporters and research in this area has revealed that...

>> read more

Species similarities and differences in pharmacokinetics

One of the fundamental challenges drug metabolism scientists face in drug discovery and...

>> read more

Stability of drug concentrations in plasma stored in serum separator blood collection tubes

The stability of therapeutic concentrations of 11 drugs and two trace elements (copper and zinc) ...

>> read more

Strategies for absorption screening in drug discovery and development

This review gives an overview of the current approaches to evaluate drug absorption potential in ...

>> read more

Strategy of utilizing in vitro and in vivo ADME tools for lead optimization and drug candidate selection

The high-throughput screening in drug discovery for absorption, distribution, metabolism and...

>> read more

The advantages of the Ussing chamber in drug absorption studies

By adding high concentrations of test drugs to an Ussing chamber with rat jejunum, we...

>> read more

The effect of various in vitro conditions on the permeability characteristics of the buccal mucosa

The effect of various in vitro conditions on the permeability characteristics of the...

>> read more

The impact of hepatic uptake on the pharmacokinetics of organic ions

The disposition of seven marketed and two AstraZeneca acid (organic anion) compounds with a...

>> read more

The pig as a model for human wound healing

The medical literature describes numerous in vitro and in vivo wound-healing models. The selection...

>> read more

The use of biopharmaceutic classification of drugs in drug discovery and development: current status and future extension

Bioavailability (BA) and bioequivalence (BE) play a central role in pharmaceutical product...

>> read more

Transport of L-Valine-Acyclovir via the oligopeptide transporter in the human intestinal cell line, Caco-2

It has been reported that conjugating acyclovir, a potent antiviral with low oral...

>> read more

Use of hepatocytes to assess the contribution of hepatic uptake to clearance in vivo

The wealth of information that has emerged in recent years detailing the substrate specificity...

>> read more

Use of quadrupole linear ion trap mass spectrometer in metabolite identification and bioanalysis

A new type of quadrupole linear ion trap mass spectrometer, Q TRAPTM LC/MS/MS system...

>> read more

Use of Transporter Knockdown Caco-2 Cells to Investigate the In Vitro Efflux of Statin Drugs

The objective of the present study was to determine the efflux transporters responsible for acid ...

>> read more

Utility of metabolic stability screening: comparison of in vitro and in vivo clearance. Xenobiotica

The ability of hepatic microsomal metabolic stability assessments to predict in vivo...

>> read more

Whatever happened to cassette-dosing pharmacokinetics?

Cassette dosing is a procedure that is used for rapidly assessing the pharmacokinetics of a...

>> read more
© 1999-2012 Absorption Systems LP | Legal Notice Site Map Privacy Statement RSS Twitter LinkedIn