TY - GEN AU - Gonzalez-Alvarez,Maria Isabel AU - Dahan,Arik AU - Gonzalez-Alvarez,Maria Isabel AU - Dahan,Arik TI - Regional Intestinal Drug Absorption : Biopharmaceutics and Drug Formulation SN - books978-3-0365-3657-6 PY - 2022/// CY - Basel PB - MDPI - Multidisciplinary Digital Publishing Institute KW - Medicine KW - bicssc KW - Pharmaceutical industries KW - bioequivalence KW - Biopharmaceutics Classification System KW - in vitro KW - dissolution test KW - pravastatin KW - oral absorption KW - in silico modeling KW - GastroPlus KW - Phoenix WinNonlin KW - pharmacokinetics KW - clinical studies KW - ibuprofen KW - manometry KW - gastrointestinal KW - mechanistic modeling KW - PBPK KW - PBBM KW - disintegration KW - dissolution KW - enteric-coated KW - ICH KW - quality control KW - regional intestinal permeability KW - permeation enhancers KW - absorption-modifying excipients KW - oral peptide delivery KW - intestinal perfusion KW - pharmaceutical development KW - controlled release drug product KW - biopharmaceutics classification system KW - drug solubility KW - drug permeability KW - location-dependent absorption KW - segregated flow intestinal model (SFM) KW - traditional model (TM) KW - route-dependent intestinal metabolism KW - first-pass effect KW - drug-drug interactions KW - DDI KW - in vitro in vivo extrapolations KW - IVIVE KW - zero-order absorption KW - first-order absorption KW - combined zero- and first-order absorption KW - transit compartment absorption model KW - in situ perfusion KW - microdevices KW - shape KW - mucoadhesion KW - colon absorption KW - nutrient digestion KW - nutrient absorption KW - gastrointestinal hormone KW - postprandial glycaemia KW - energy intake KW - region of the gut KW - obesity KW - type 2 diabetes KW - Franz-PAMPA KW - BCS drugs KW - biomimetic membrane KW - Franz cell KW - passive drug transport KW - BCS class IV drugs KW - segmental-dependent intestinal permeability KW - intestinal absorption KW - oral drug delivery KW - biopharmaceutics KW - physiologically-based pharmacokinetic (PBPK) modeling KW - furosemide KW - intestinal permeability KW - human colon carcinoma cell layer (Caco-2) KW - hierarchical support vector regression (HSVR) KW - drug absorption KW - drug solubility/dissolution KW - regional/segmental-dependent permeability and absorption N1 - Open Access N2 - The gastrointestinal tract (GIT) can be broadly divided into several regions: the stomach, the small intestine (which is subdivided to duodenum, jejunum, and ileum), and the colon. The conditions and environment in each of these segments, and even within the segment, are dependent on many factors, e.g., the surrounding pH, fluid composition, transporters expression, metabolic enzymes activity, tight junction resistance, different morphology along the GIT, variable intestinal mucosal cell differentiation, changes in drug concentration (in cases of carrier-mediated transport), thickness and types of mucus, and resident microflora. Each of these variables, alone or in combination with others, can fundamentally alter the solubility/dissolution, the intestinal permeability, and the overall absorption of various drugs. This is the underlying mechanistic basis of regional-dependent intestinal drug absorption, which has led to many attempts to deliver drugs to specific regions throughout the GIT, aiming to optimize drug absorption, bioavailability, pharmacokinetics, and/or pharmacodynamics. In the book "Regional Intestinal Drug Absorption: Biopharmaceutics and Drug Formulation" we aim to highlight the current progress and to provide an overview of the latest developments in the field of regional-dependent intestinal drug absorption and delivery, as well as pointing out the unmet needs of the field UR - https://mdpi.com/books/pdfview/book/5393 UR - https://directory.doabooks.org/handle/20.500.12854/81051 ER -