Results 41 to 50 of about 7,631 (266)
A ring conformation of androstan-3-one
Molecular Physics, 2016 For solid-state structures of androstan-3-one derivatives presented in Cambridge structural database (CSD), the puckering parameters for the six-membered rings were calculated to investigate the ring conformation. It was found that for the A-ring, except for typical chair conformation, the boat conformation appears very often. This conformation is also
Irena Majerz, Adam Sroka
openaire +2 more sources
Drug Testing and Analysis, EarlyView.The metabolism of bolasterone in liver microsomes and in urine samples of rats orally treated was evaluated due to no availability of its extensive metabolism studies. Its mono‐ and di‐hydroxylated metabolites were detected by GC‐EI‐MS/MS, and the fragmentation pathways of metabolites were suggested.
Anca Raluca Muresan +5 more
wiley +1 more source
Syntheses and structural confirmation of stereoisomers and various isotopologues of tetrahydromethyltestosterone [PDF]
This is an overview of the syntheses and structural conformation of in-house synthesized compounds. These compounds belong to the group of sereoisomers of metabolites of anabolic androgenic steroids and have been used in different studies in our working ...
Maria Kristina, Parr, Steff, Jakob
core +1 more source
Quantification of a glucocorticoid profile in non-pooled samples is pivotal in stress research across vertebrates [PDF]
, 2018 Vertebrates are faced continuously with a variety of potential stressful stimuli and react by a highly conserved endocrine stress response. An immediate catecholamine mediated response increases plasma glucose levels in order to prepare the organism for ...
Aerts, Johan
core +2 more sources
The gut‐microbiota‐brain axis: Focus on gut steroids
Journal of Neuroendocrinology, EarlyView.Abstract There are over 1000 varieties of steroids that have been reported in nature, including the endogenous sex steroid hormones (i.e., progesterone, testosterone, and 17β‐estradiol) and corticosteroids which are mainly synthesized by gonads and adrenals, respectively.
Silvia Diviccaro +4 more
wiley +1 more source
Assessing agroecosystem resilience in annual cropping systems with ecometabolomics
Agrosystems, Geosciences &Environment, Volume 8, Issue 2, June 2025.Abstract Plant ecometabolomics is a growing field of study that allows broader understanding of the metabolomic dynamics within and between plants and their ecosystem. Plants constantly respond to environmental cues, producing plant secondary metabolites (PSMs) to communicate with and adapt to their ever‐changing ecosystems.
Andrea K. Clemensen +6 more
wiley +1 more source
The Tetracyanoethylene Catalysed Methanolysis of Androstane 2,3-Epoxides [PDF]
Journal of Chemical Research, 1999 Unlike other acidic systems, the tetracyanoethylene catalysed methanolysis of androstane 2,3-epoxides proceeds normally without giving products arising from the transannular participation of a 5α,6α-epoxide, a 5α-hydroxy group or a 5(6)-ene.
James R. Hanson, Ismail Kiran
openaire +3 more sources
iMetaOmics, Volume 2, Issue 2, June 2025.In this study, we explored the therapeutic effects of Parabacteroides goldsteinii (P. goldsteinii) on colitis and its underlying mechanisms. Our results indicate a significant reduction of P. goldsteinii in the stools of inflammatory bowel disease patients. We demonstrate the therapeutic potential of P.
Fujian Qin +7 more
wiley +1 more source
Recent developments in the use of isotope ratio mass spectrometry in sports drug testing [PDF]
, 2018 According to the annual report of the World Anti-Doping Agency, steroids are the most frequently detected class of doping agents. Detecting the misuse of endogenously occurring steroids, i.e.
Emery, Caroline +2 more
core
EFSA Journal, Volume 23, Issue 5, May 2025.Abstract According to the ‘EFSA‐SANTE Action Plan on Cumulative Risk Assessment for pesticides residues’, EFSA initiated a retrospective cumulative risk assessment (CRA) of the effects of pesticide residues on the liver. For this CRA, EFSA identified the following liver‐specific effects in accordance with the International Harmonisation of Nomenclature
European Food Safety Authority (EFSA) +8 more
wiley +1 more source