Androsterone derivatives substituted at position 3 were synthesized starting from dihydrotestosterone in a short sequence of reactions. They proved to be potent inhibitors (IC50 = 57-147 nM) of type 3 17beta-hydroxysteroid dehydrogenase, a key enzyme of steroidogenesis, which catalyzes the transformation of androstenedione to steroid active androgen testosterone.
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http://dx.doi.org/10.1016/s0960-894x(00)00517-5 | DOI Listing |
RSC Med Chem
November 2024
Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center Omaha Nebraska 68198 USA
Alzheimer's disease (AD) is estimated to affect over 55 million people across the world. Small molecule treatment options are limited to symptom management with no impact on disease progression. The need for new protein targets and small molecule hit compounds is unmet and urgent.
View Article and Find Full Text PDFFASEB J
November 2024
College of Engineering, Science and Environment, The University of Newcastle, Callaghan, New South Wales, Australia.
Testosterone and dihydrotestosterone (DHT) are essential for male development and fertility. In the canonical androgen production pathway, testosterone is produced in the testis by HSD17B3; however, adult male Hsd17b3 knockout (KO) mice continue to produce androgens and are fertile, indicating compensatory mechanisms exist. A second, alternate pathway produces DHT from precursors other than testosterone via 5α-reductase (SRD5A) activity.
View Article and Find Full Text PDFToxicology
December 2024
Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, Basel 4056, Switzerland; Swiss Centre for Applied Human Toxicology and Department of Pharmaceutical Sciences, University of Basel, Missionsstrasse 64, 4055 Basel, Switzerland. Electronic address:
Parabens and UV-filters are frequently used additives in cosmetics and body care products that prolong shelf-life. They are assessed for potential endocrine disrupting properties. Antiandrogenic effects of parabens and benzophenone-type UV-filters by blocking androgen receptor (AR) activity have been reported.
View Article and Find Full Text PDFSteroids
January 2025
Laboratory of Medicinal Chemistry, Endocrinology and Nephrology Unit, CHU de Québec Research Center-Université Laval, Québec, QC G1V 4G2, Canada; Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada.
J Biomol Struct Dyn
November 2024
Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK.
Cancer is a leading cause of global death. Medicinal plants have gained increasing attention in cancer drug discovery. In this study, the stem bark extract of , which is used in ethnomedicine to treat cancer, was subjected to phytochemical investigation leading to the isolation of oleanolic acid (OA).
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