Chondroprotective Effects of Progrado from Sangre de Grado
Author Information
Author(s): Mark JS Miller, Paul Bobrowski, Meenakshi Shukla, Kalpana Gupta, Tariq M Haqqi
Primary Institution: Center for Cardiovascular Sciences, Albany Medical College
Hypothesis
Can the proanthocyanidin-rich extract Progrado from Sangre de Grado inhibit matrix metalloproteinases and enhance IGF-1 production in human chondrocytes?
Conclusion
Progrado shows a promising safety profile and significant chondroprotective and antioxidant actions, inhibiting MMP activity and promoting IGF-1 production.
Supporting Evidence
- Progrado showed no toxicity in rats at doses up to 2000 mg/kg.
- Progrado significantly reduced glycosaminoglycan release from cartilage explants.
- Progrado inhibited MMP-2 and MMP-9 activity in a dose-dependent manner.
- Progrado maintained IGF-1 production in the presence of IL-1β.
Takeaway
Progrado, a natural extract, helps protect cartilage and heal joints by stopping harmful enzymes and boosting a growth factor that repairs cartilage.
Methodology
The study involved testing the safety of Progrado in rats, analyzing its antioxidant activity, and assessing its effects on human cartilage explants and chondrocytes.
Potential Biases
Potential conflicts of interest due to authors' affiliations with Rainforest Nutritionals, Inc.
Limitations
The study primarily focused on in vitro and acute toxicity assessments, lacking long-term safety evaluations.
Participant Demographics
Human cartilage samples were obtained from patients undergoing knee surgery.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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