User profiles for S. Steyn
Stephan F SteynNorth-West University, South Africa Verified email at nwu.ac.za Cited by 154 |
[HTML][HTML] The neuropsychiatric manifestations of COVID-19: Interactions with psychiatric illness and pharmacological treatment
The recent outbreak of the corona virus disease (COVID-19) has had major global impact.
The relationship between severe acute respiratory syndrome coronavirus (SARS-CoV-2) …
The relationship between severe acute respiratory syndrome coronavirus (SARS-CoV-2) …
High throughput ADME screening: practical considerations, impact on the portfolio and enabler of in silico ADME models
…, W Mitchell, M Snyder, SJ Steyn… - Current drug …, 2008 - ingentaconnect.com
Evaluation and optimization of drug metabolism and pharmacokinetic data plays an important
role in drug discovery and development and several reliable in vitro ADME models are …
role in drug discovery and development and several reliable in vitro ADME models are …
Physicochemical space for optimum oral bioavailability: contribution of human intestinal absorption and first-pass elimination
…, C Rotter, HR Miller, G Chang, SJ Steyn… - Journal of medicinal …, 2010 - ACS Publications
Oral bioavailability (F) is a product of fraction absorbed (Fa), fraction escaping gut-wall
elimination (Fg), and fraction escaping hepatic elimination (Fh). In this study, using a database …
elimination (Fg), and fraction escaping hepatic elimination (Fh). In this study, using a database …
Predicting clearance mechanism in drug discovery: extended clearance classification system (ECCS)
MV Varma, SJ Steyn, C Allerton, AF El-Kattan - Pharmaceutical research, 2015 - Springer
… Definitive assessment of a compound’s clearance mechanisms takes place during a human
… It should be emphasized that a drug’s predominant elimination process such as metabolism, …
… It should be emphasized that a drug’s predominant elimination process such as metabolism, …
[HTML][HTML] Leucine-rich repeat kinase 2 (LRRK2) pharmacological inhibition abates α-synuclein gene-induced neurodegeneration
…, KB Fraser, E Needle, Y Chen, SJ Steyn… - Journal of Biological …, 2015 - ASBMB
Therapeutic approaches to slow or block the progression of Parkinson disease (PD) do not
exist. Genetic and biochemical studies implicate α-synuclein and leucine-rich repeat kinase 2 …
exist. Genetic and biochemical studies implicate α-synuclein and leucine-rich repeat kinase 2 …
Discovery and Preclinical Profiling of 3-[4-(Morpholin-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl]benzonitrile (PF-06447475), a Highly Potent, Selective, Brain Penetrant …
…, Y Chen, E Needle, Z Berger, SJ Steyn… - Journal of medicinal …, 2015 - ACS Publications
Leucine rich repeat kinase 2 (LRRK2) has been genetically linked to Parkinson’s disease (PD)
by genome-wide association studies (GWAS). The most common LRRK2 mutation, …
by genome-wide association studies (GWAS). The most common LRRK2 mutation, …
pH-Dependent solubility and permeability criteria for provisional biopharmaceutics classification (BCS and BDDCS) in early drug discovery
MV Varma, I Gardner, SJ Steyn, P Nkansah… - Molecular …, 2012 - ACS Publications
The Biopharmaceutics Classification System (BCS) is a scientific framework that provides a
basis for predicting the oral absorption of drugs. These concepts have been extended in the …
basis for predicting the oral absorption of drugs. These concepts have been extended in the …
LRRK2 inhibitors induce reversible changes in nonhuman primate lungs without measurable pulmonary deficits
…, K Rudolph, AK Sharma, A Stepan, S Steyn… - Science translational …, 2020 - science.org
The kinase-activating mutation G2019S in leucine-rich repeat kinase 2 (LRRK2) is one of the
most common genetic causes of Parkinson’s disease (PD) and has spurred development …
most common genetic causes of Parkinson’s disease (PD) and has spurred development …
Reviewing the mitochondrial dysfunction paradigm in rodent models as platforms for neuropsychiatric disease research
… Nevertheless, through comprehensive validation, we may better understand the model’s
shortfalls and benefits so allowing it to propagate ground-breaking discoveries in clinical …
shortfalls and benefits so allowing it to propagate ground-breaking discoveries in clinical …
Discovery, SAR, and Pharmacokinetics of a Novel 3-Hydroxyquinolin-2(1H)-one Series of Potent d-Amino Acid Oxidase (DAAO) Inhibitors
…, SM Sakya, S Sheehan, SJ Steyn… - Journal of medicinal …, 2009 - ACS Publications
… (pK a ’s = 4−5) at the peroxisomal pH of ∼8.2. High-throughput screening of our compound
file against the human DAAO enzyme uncovered lead compounds with pK a ’s > 8 that are …
file against the human DAAO enzyme uncovered lead compounds with pK a ’s > 8 that are …