Planta Med 2024; 90(07/08): 561-575
DOI: 10.1055/a-2255-7096
Biological and Pharmacological Activity
Original Papers

Withanolide Profile and Acetylcholinesterase Inhibitory Activity of Two Argentinean Jaborosa Species[ # ]

Natalia P. Alza
1   INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
2   Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) – Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Bahía Blanca, Argentina
,
Eva M. Pferschy-Wenzig
3   Institute of Pharmaceutical Sciences, Pharmacognosy, University of Graz, Graz, Austria
,
Olaf Kunert
4   Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Graz, Austria
,
Ana P. Murray
1   INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
› Author Affiliations
This work was supported by the Austrian Agency for Education and Internationalization (OeAD) and the Argentinean Ministry of Science and Technology (WTZ, Grant AR09/2015).

Abstract

Acetylcholinesterase (AChE) inhibitors are still an important option for managing symptoms of mild to moderate Alzheimerʼs disease. In this study, we aimed to evaluate the potential in vitro AChE inhibitory activity of two Argentinian endemic Solanaceae species, Jaborosa bergii and J. runcinata. UHPLC-DAD-HRMS metabolite profiling revealed the presence of withanolides in the active CH2Cl2 subextracts. Their fractionation led to the isolation and identification of two known spiranoid withanolides from J. runcinata and three new withanolides with a skeleton similar to that of trechonolide-type withanolides from J. bergii. The known compounds showed moderate AChE inhibitory activity, while the new ones were inactive.

# This work is dedicated to Professors Rudolf Bauer, Chlodwig Franz, Brigitte Kopp, and Hermann Stuppner for their invaluable contributions and commitment to Austrian Pharmacognosy.


Supporting Information



Publication History

Received: 29 September 2023

Accepted after revision: 23 January 2024

Article published online:
06 June 2024

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