Publications by authors named "Garcimarero-Espino E Alejandra"

Several studies have been reported for the preparation of hexacyclic-steroid derivatives; however, some reagents are expensive and require special conditions for handling. In this way, the objective of this study was to synthesize a hexacyclic-steroid derivative from 4-hydroxyestrone. The chemical structure was evaluated through both H NMR and C NMR spectroscopic analysis.

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  • Several aniline derivatives were synthesized as potential treatments for heart failure, requiring a series of chemical reactions to create them.
  • The study found that one specific compound (compound 8) notably reduced heart failure symptoms and infarction area more effectively than other synthesized compounds.
  • This research suggests an efficient and cost-effective method for creating these derivatives, while also highlighting compound 8's unique biological activity, which may work through a different mechanism compared to existing heart failure medications.
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There are several reports for the preparation of furan derivatives using some protocols which requires special conditions. In this way, the aim of this study was to synthesize a new furan-steroid-propanone derivative from both 17α-ethynylestradiol and 2-nitro-17α-ethynylestradiol using some series of reactions such as aldolization, 2 + 2 addition and etherification. The chemical structure was evaluated through both H NMR and C NMR spectroscopic analysis.

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  • * Compounds 4 and 5 were highlighted for their significant ability to reduce heart failure symptoms, specifically by decreasing the infarct area compared to other tested compounds.
  • * Both compounds lowered left ventricular pressure in a dose-dependent way, and this effect was significantly blocked by the presence of methoctramine, indicating their action involves M-muscarinic receptor activation.
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  • There is a need to better understand how certain steroid derivatives impact ischemia/reperfusion injury, as previous experimental data has shown mixed results possibly due to varying chemical structures and testing methods.
  • The study aimed to create a new bis-steroid-methanocyclobutanaphthalene-dione derivative and tested its effects on an isolated heart model against ischemia/reperfusion injury, using several control drugs.
  • The findings indicated that the new derivative significantly reduced injury and increased left ventricular pressure, suggesting it could activate calcium channels and serve as a potential new treatment for ischemia/reperfusion injury.
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