[HTML][HTML] Impact of gastrointestinal tract variability on oral drug absorption and pharmacokinetics: An UNGAP review

Z Vinarov, M Abdallah, JAG Agundez… - European Journal of …, 2021 - Elsevier
The absorption of oral drugs is frequently plagued by significant variability with potentially
serious therapeutic consequences. The source of variability can be traced back to …

[HTML][HTML] The mechanisms of pharmacokinetic food-drug interactions–A perspective from the UNGAP group

M Koziolek, S Alcaro, P Augustijns, AW Basit… - European Journal of …, 2019 - Elsevier
The simultaneous intake of food and drugs can have a strong impact on drug release,
absorption, distribution, metabolism and/or elimination and consequently, on the efficacy …

Drinkable in situ-forming tough hydrogels for gastrointestinal therapeutics

GW Liu, MJ Pickett, JLP Kuosmanen, K Ishida… - Nature Materials, 2024 - nature.com
Pills are a cornerstone of medicine but can be challenging to swallow. While liquid
formulations are easier to ingest, they lack the capacity to localize therapeutics with …

Discovery and inhibition of an interspecies gut bacterial pathway for Levodopa metabolism

V Maini Rekdal, EN Bess, JE Bisanz, PJ Turnbaugh… - Science, 2019 - science.org
INTRODUCTION Parkinson's disease is a debilitating neurological condition affecting more
than 1% of the global population aged 60 and above. The primary medication used to treat …

Extensive impact of non-antibiotic drugs on human gut bacteria

L Maier, M Pruteanu, M Kuhn, G Zeller, A Telzerow… - Nature, 2018 - nature.com
A few commonly used non-antibiotic drugs have recently been associated with changes in
gut microbiome composition, but the extent of this phenomenon is unknown. Here, we …

[HTML][HTML] Impact of gastrointestinal physiology on drug absorption in special populations––An UNGAP review

C Stillhart, K Vučićević, P Augustijns, AW Basit… - European Journal of …, 2020 - Elsevier
The release and absorption profile of an oral medication is influenced by the
physicochemical properties of the drug and its formulation, as well as by the anatomy and …

Physical chemistry of supersaturated solutions and implications for oral absorption

LS Taylor, GGZ Zhang - Advanced drug delivery reviews, 2016 - Elsevier
Amorphous solid dispersion (ASD) formulations are widely used for delivery of poorly
soluble drugs for dissolution enhancement and bioavailability improvement. When …

[HTML][HTML] Impact of regional differences along the gastrointestinal tract of healthy adults on oral drug absorption: An UNGAP review

M Vertzoni, P Augustijns, M Grimm, M Koziolek… - European journal of …, 2019 - Elsevier
Oral administration is the most common route of drug delivery. The absorption of a drug from
the gut into the bloodstream involves disintegration of the solid dosage form, dissolution of …

Advances and future perspectives in epithelial drug delivery

Y Mohammed, A Holmes, PCL Kwok, T Kumeria… - Advanced Drug Delivery …, 2022 - Elsevier
Epithelial surfaces protect exposed tissues in the body against intrusion of foreign materials,
including xenobiotics, pollen and microbiota. The relative permeability of the various …

[HTML][HTML] Current challenges and future perspectives in oral absorption research: An opinion of the UNGAP network

Z Vinarov, B Abrahamsson, P Artursson… - Advanced drug delivery …, 2021 - Elsevier
Although oral drug delivery is the preferred administration route and has been used for
centuries, modern drug discovery and development pipelines challenge conventional …