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igf-1 growth factor preclinical animal n preclinical 2026-04-16 PubMed

Chili Compound Capsaicin Reduces Prostate Enlargement in Insulin Resistant Rats

Capsaicin Mitigates Insulin Resistance-Driven Prostate Hyperplasia Via IGF-1 Signalling Modulation in HFD + STZ Rat Model.

Background

Insulin Resistance (IR) is a metabolic condition often characterized by elevated glucose levels and hyperinsulinemia (high insulin in the blood). Critically, these elevated insulin levels associated with IR are known to contribute to prostate enlargement, a precursor to or symptom of Benign Prostatic Hyperplasia (BPH). Despite this known link, the potential for natural compounds to intervene in this specific pathway remains underexplored. This study addresses this gap by investigating the therapeutic effects of capsaicin on IR-induced prostatic hyperplasia.

Results

Capsaicin administration significantly improved metabolic markers, leading to an approximate 25% reduction in fasting blood glucose and a 30% reduction in insulin levels compared to untreated IR controls (p<0.05 for both). Furthermore, the treatment resulted in a substantial 20% decrease in prostate weight and mitigated adverse histopathological alterations within the prostate tissue. A key mechanistic finding was the 2-fold downregulation of IGF-1 (Insulin-like Growth Factor 1) expression, a protein crucial for cellular proliferation and differentiation, suggesting its role in reversing prostate hyperplasia. Capsaicin treatment effectively reversed both the metabolic dysregulation and the prostate enlargement induced by insulin resistance in the rat model, demonstrating significant therapeutic potential.

Why It Matters

These findings highlight capsaicin as a promising therapeutic candidate for managing insulin resistance-induced prostatic hyperplasia, offering a natural compound approach to a widespread health issue. By modulating IGF-1 signaling, capsaicin targets a fundamental pathway implicated in both metabolic health and prostate growth. This research opens a new avenue for exploring capsaicin's efficacy in human clinical trials for BPH, potentially leading to novel treatment strategies that address the underlying metabolic causes of prostate enlargement. Further studies are needed to determine optimal dosing and long-term effects in humans.


igf-1 insulin growth factor
Source: pubmed:41987603 · Ingested 2026-04-16 · Digest: gemini-2.5-flash