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Updated: Aug 4, 2026
09:26
Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis
Published on: November 17, 2011
Structure determination of 3 beta, 17-dihydroxy-17 alpha-pregn-5-ene-20-one
Steroids
|March 1, 1985
Summary
Researchers synthesized a novel steroid metabolite to identify the cause of gynecomastia. X-ray analysis revealed a stable conformation unlikely to interact with proteins, suggesting it may not be the primary cause.
Area of Science:
- Steroid chemistry
- Endocrinology
- X-ray crystallography
Background:
- Gynecomastia is a condition of abnormal breast enlargement in males.
- Identifying abnormal steroid metabolites is crucial for understanding endocrine disorders.
Purpose of the Study:
- To synthesize and characterize a specific steroid metabolite found in a patient with gynecomastia.
- To elucidate the structural conformation and potential biological interactions of this metabolite.
Main Methods:
- Chemical synthesis of the target steroid compound.
- X-ray diffraction analysis to determine the three-dimensional structure.
- Conformational analysis to predict potential protein interactions.
Main Results:
- The synthesized compound's X-ray structure revealed a specific conformation.
- The 20-carbonyl group of the side chain is positioned under the D ring.
- This conformation is stable and shielded, limiting its potential for protein binding.
Conclusions:
- The determined conformation of the steroid metabolite suggests limited direct protein interaction.
- Further studies are needed to fully understand its role in the observed gynecomastia.
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