ArticleAndrology2025
Curcumin ameliorates pyroptosis in diabetic seminal vesicles by upregulating TRPV6.
Article in Andrology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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7 authors.
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Abstract
backgroundDiabetes damages the seminal vesicle tissues leading to a decrease in seminal fluid secretion, so investigations are ongoing to identify specific therapeutic approaches to address diabetes-induced damage to seminal vesicles.
objectiveThis study investigated the secretory dysfunction of seminal vesicles and how curcumin can ameliorate this dysfunction. MATERIALS AND
methodsFirst, 40 diabetic males (DM group) and 40 nondiabetic males (control group) underwent seminal vesicle ultrasound evaluation and ejaculate volume measurements. Then, the effects of curcumin on seminal vesicle function were investigated in a diabetic rat model. Fifty 8-week-old SPF-grade SD rats were categorized into five groups: control, DM (diabetes mellitus), low-dose CUR (curcumin 50 mg/kg/d), medium-dose CUR (curcumin 100 mg/kg/d), and high-dose CUR (curcumin 150 mg/kg/d). After a month-long diet with varying curcumin doses, key parameters such as body weight, blood glucose levels, seminal vesicle volume, and seminal fluid secretion were measured. Transcriptome sequencing was performed to assess differences in gene expression and structural changes in rat seminal vesicle tissues were examined by HE staining. Finally, human seminal vesicle cell lines were cultured and divided into five groups (HG-CON, HG-CUR-5 µM, HG-CUR-10 µM, HG-CUR-20 µM, and HG-CUR-50 µM) to measure the fructose levels in the seminal vesicle cell culture fluids and evaluate the expression of CASP1, GSDMD, and TRPV6. Post TRPV6 interference, variations in the gene expression of CASP1, GSDMD, and TRPV6 were monitored.
resultsDiabetic patients exhibited a notable reduction in seminal vesicle volume and ejaculate volume compared with the control group, with a direct correlation between the decrease in ejaculate and seminal vesicle volume. Animal studies demonstrated that curcumin supplementation significantly augmented seminal vesicle volume in diabetic rats and notably improved their seminal vesicle secretory dysfunction, particularly in the high-dose curcumin group. Transcriptome sequencing and experimental verification pinpointed the differential expression of TPRV6 and pyroptosis-associated genes (CASP1, GSDMD), with reduced TRPV6 expression but increased markers of pyroptosis (CASP1 and GSDMD) in diabetic rats. Curcumin treatment reversed these effects with an increase in TRPV6 and a decrease in GSDMD and CASP1. Cell transfection experiments indicated that TRPV6 downregulation increased GSDMD and CASP1 gene expression.
conclusionCurcumin effectively activates TRPV6, thereby diminishing pyroptosis in the seminal vesicle tissues of diabetic rats. This activation not only leads to an increase in the seminal vesicle volume but also significantly ameliorates the seminal vesicle secretory dysfunction in diabetic rats.
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