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Nephroprotective Activity of Papaloquelite (Porophyllum ruderale) in Thioacetamide-Induced Injury Model
María José Vázquez-Atanacio1,2, Mirandeli Bautista2, Manasés González-Cortazar3
1Área Académica de Medicina Veterinaria y Zootecnia, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo, Av. Universidad Km 1, Ex-Hda. de Aquetzalpa, Tulancingo 43600, Hidalgo, Mexico.
Abstract:
Acute kidney injury and impaired kidney function is associated with reduced survival and increased morbidity. Porophyllum ruderale is an edible plant endemic to Mexico used in Mexican traditional medicine. The aim of this study was to evaluate the nephroprotective effect of a hydroalcoholic extract (MeOH:water 70:30, v/v) from the aerial parts of P. ruderale (HEPr). Firstly, in vitro the antioxidant and anti-inflammatory activity of HEPr was determined; after the in vivo nephroprotective activity of HEPr was evaluated using a thioacetamide-induced injury model in rats. HEPr showed a slight effect on LPS-NO production in macrophages (15% INO at 40 µg/mL) and high antioxidant activity in the ferric reducing antioxidant power (FRAP) test, followed by the activity on DPPH and ABTS radicals test (69.04, 63.06 and 32.96% of inhibition, respectively). In addition, values of kidney injury biomarkers in urine (urobilinogen, hemoglobin, bilirubin, ketones, glucose, protein, pH, nitrites, leukocytes, specific gravity, and the microalbumin/creatinine) and serum (creatinine, urea, and urea nitrogen) of rats treated with HEPr were maintained in normal ranges. Finally, 5-O-caffeoylquinic, 4-O-caffeoylquinic and ferulic acids; as well as 3-O-quercetin glucoside and 3-O-kaempferol glucoside were identified by HPLC as major components of HEPr. In conclusion, Porophyllum ruderale constitutes a source of compounds for the treatment of acute kidney injury.
Insights
The Mexican plant Porophyllum ruderale (HEPr) exhibits significant antioxidant properties and protects against acute kidney injury in rats. Its compounds may offer therapeutic potential for kidney health.
Area of Science:
- Pharmacology and Toxicology
- Natural Product Chemistry
- Nephrology
Background:
- Acute kidney injury (AKI) is a critical condition linked to poor patient outcomes.
- Traditional Mexican medicine utilizes Porophyllum ruderale for various ailments.
- Understanding the nephroprotective potential of P. ruderale is crucial.
Purpose of the Study:
- To evaluate the nephroprotective effects of a hydroalcoholic extract from Porophyllum ruderale (HEPr).
- To assess the in vitro antioxidant and anti-inflammatory activities of HEPr.
- To determine the in vivo efficacy of HEPr in a rat model of kidney injury.
Main Methods:
- In vitro assays for antioxidant (FRAP, DPPH, ABTS) and anti-inflammatory (LPS-NO) activity.
- In vivo study using a thioacetamide-induced acute kidney injury model in rats.
- Analysis of kidney injury biomarkers in urine and serum; High-Performance Liquid Chromatography (HPLC) for compound identification.
Main Results:
- HEPr demonstrated high antioxidant capacity and moderate anti-inflammatory effects.
- Rats treated with HEPr maintained normal levels of urinary and serum kidney injury biomarkers.
- HPLC analysis identified major compounds including caffeoylquinic acids, ferulic acid, and quercetin/kaempferol glucosides.
Conclusions:
- Porophyllum ruderale extract (HEPr) exhibits significant nephroprotective effects.
- The plant's antioxidant properties contribute to its kidney-protective action.
- HEPr is a promising source of natural compounds for managing acute kidney injury.
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