Preclinical evidence: Annona muricata seed extract in testosterone‑induced BPH in rats
دليل قبل سريري: مستخلص بذور Annona muricata في تضخم البروستاتا الناتج عن التستوستيرون عند الفئران
Journal: BMC complementary medicine and therapies
University: Not specified
Study Type: animal
Evidence Level: preliminary
Published:
⚠️ Warning: This is a preliminary study (animal/cell) and has not been proven in humans.
30-Second Summary
This is a preclinical (rat) study testing Annona muricata seed extract (SEAM) against testosterone‑induced benign prostatic hyperplasia using biochemical, histopathological, and in silico methods. SEAM showed antioxidant activity, no acute toxicity at tested doses, reduced prostate pathology measures in treated rats, and phytochemicals that docked to 5‑alpha reductase in silico.
1-Minute Summary
Researchers induced benign prostatic hyperplasia in male Wistar rats and treated groups with different doses of Annona muricata seed extract (SEAM), comparing to positive and negative controls. They performed phytochemical profiling, in vitro antioxidant assays, acute toxicity testing, prostate weight and histopathology assessments, biochemical markers, and molecular docking against 5‑alpha reductase. SEAM-treated animals showed improvements in prostate histology and reduced markers associated with BPH compared with untreated controls, with no acute toxicity observed at the tested dose range. In silico docking suggested several seed phytochemicals could interact with 5‑alpha reductase, supporting a possible mechanism to explore in future studies.
3-Minute Summary
Researchers evaluated seed extract of Annona muricata (SEAM) for effects on testosterone‑induced benign prostatic hyperplasia (BPH) in rats, combining phytochemical profiling, in vitro antioxidant assays, acute toxicity testing, in vivo efficacy, histology, biochemical markers, and in silico docking. SEAM was prepared and analyzed for phytochemicals and antioxidant activity; no acute toxicity was observed at tested doses. Thirty male Wistar rats were assigned to six groups: normal control, negative control (BPH model), positive control, and three SEAM‑dose groups. BPH was induced by subcutaneous testosterone. Compared with untreated BPH controls, SEAM‑treated rats showed reduced prostate enlargement and improved histopathological features, alongside decreases in prostate‑related biochemical markers. In silico docking identified several seed phytochemicals predicted to interact with 5‑alpha reductase, a key enzyme in dihydrotestosterone formation, suggesting a plausible mechanism. The combined data indicate SEAM has antioxidant properties and may modulate pathways relevant to prostate overgrowth in this animal model. Limitations include small group sizes and preclinical setting; findings are exploratory. Results suggest SEAM warrants further mechanistic studies, dose‑response assessment, and safety profiling before any consideration of clinical relevance. Future work should include identification of active constituents, pharmacokinetics, long‑term safety, and comparison with established 5‑alpha reductase inhibitors in controlled studies to clarify effects.
Full Analysis
Background and approach: This study evaluated seed extract of Annona muricata (SEAM) as a candidate modulator of benign prostatic hyperplasia (BPH) using a combination of phytochemical profiling, in vitro antioxidant assays, acute toxicity testing, an in vivo testosterone-induced rat model, histopathology, prostate-related biochemical markers, and in silico docking against 5‑alpha reductase. Key findings: SEAM showed in vitro antioxidant activity and produced no acute toxicity at tested doses. In the testosterone-induced BPH model, SEAM treatment was associated with smaller prostate changes, improved tissue histology, and reductions in biochemical markers linked to prostate pathology compared with untreated BPH controls. Docking simulations suggested several seed constituents can interact with 5‑alpha reductase, providing a plausible mechanism for reduced dihydrotestosterone formation. Interpretation and caveats: The multimodal dataset is internally consistent and supports the hypothesis that SEAM contains bioactive phytochemicals with antioxidant and enzyme‑modulating properties that may influence prostate overgrowth in this animal model. However, the study is preclinical, with small group sizes (n=5 per group), limited detail on dose selection and pharmacokinetics, and reliance on in silico predictions rather than direct enzymatic inhibition assays. Histological and biochemical endpoints are useful but surrogate; relevance to human BPH physiology is uncertain. Recommendations: Next steps should include isolation and quantification of active compounds, in vitro enzyme inhibition assays with 5‑alpha reductase, pharmacokinetic and dose-finding studies, longer-term toxicity, and replication with larger cohorts. Comparative studies versus established 5‑alpha reductase inhibitors and assessment of inflammatory and androgen signaling pathways would strengthen translational relevance. Methodological details that would improve interpretability include quantification of major phytochemical classes (e.g., alkaloids, acetogenins, flavonoids), specification of antioxidant assays used (DPPH, FRAP or similar), concentrations and administration route of SEAM, and presentation of individual animal data to assess variability. Inclusion of inflammatory markers and androgen receptor expression would also clarify biological pathways affected before translational steps commence.Health Implications
To support prostate health and overall well‑being, prioritize regular physical activity, maintain healthy body weight, and follow a balanced diet rich in fruits, vegetables, whole grains, legumes, and oily fish. Increase intake of fiber and polyphenol‑rich foods (berries, green tea, nuts) which may support antioxidant and gut‑microbiome functions. Limit processed foods, excessive red meat, and alcohol. Ensure adequate sleep, manage stress, and avoid tobacco. Discuss supplements or herbal extracts with a healthcare provider before use. These daily habits may contribute to metabolic and inflammatory profiles relevant to prostate health but do not substitute for medical evaluation.
Key Findings
- SEAM demonstrated antioxidant activity in vitro and produced no acute toxicity at tested doses.
- In the testosterone‑induced BPH rat model, SEAM treatment was associated with reduced prostate pathology (improved histology and lower prostate-related biochemical markers) compared to untreated controls.
- In silico docking indicated several seed phytochemicals could bind to 5‑alpha reductase, suggesting a potential mechanism to investigate further.