Protective effect of black mulberry (Morus nigra L) fruit hydroalcoholic extract against testosterone-induced benign prostatic hyperplasia in rats / Efecto protector del extracto hidroalcohólico de las moras (Morus nigra L) en la hiperplasia prostática benigna no inducida por testosterona, en ratas

BACKGROUND: Finding new agents for prevention and/or treatment of benign prostatic hyperplasia (BPH) especially from natural sources is a demanding field. OBJECTIVES: This study aimed to evaluate the effect of black mulberry (BM) (Morus nigra) fruit hydroalcoholic extract on the establishment of BPH in rats. MATERIALS AND METHODS: Forty-nine adult male rats were randomly assigned into 7 equal groups: I: Sham control (SC), a sham surgery was performed. II: positive control (PC), rats were castrated and received testosterone propionate, at 10mg/kg/day S.C. for BPH induction. III: comparative control (CC), BPH was induced and the rats received finasteride at 5mg/kg/day P.O. IV-VII: (T1-T4): BPH was induced and the rats received BM extract at 25, 50, 100 and 200mg/kg/day P.O. for 4 consecutive weeks. RESULTS: Finasteride and/or BM extract especially at the two higher dosages, significantly affected prostate weight, prostatic index, percent of inhibition, serum and prostatic levels of dihydrotestosterone (DHT), serum prostate-specific antigen (PSA), antioxidant parameters of prostatic tissue as well as histopathological and histomorphometric parameters (epithelial thickness and acinar area) of prostate. CONCLUSIONS: BM extract has protective effects against experimentally-induced BPH in rats with regard to histopathological and biochemical parameters which may be related to its antioxidant as well as DHT reducing properties in prostatic tissue

ANTECEDENTES: El hallazgo de nuevos agentes para prevenir y/o tratar la hiperplasia prostática benigna (HBP), procedentes especialmente de fuentes naturales, es un campo exigente. OBJETIVOS: El objetivo de este estudio fue evaluar el efecto del extracto hidroalcohólico de las moras (Morus nigra) sobre el establecimiento de HBP en ratas. MATERIALES Y MÉTODOS: Se asignaron aleatoriamente 49 ratas adultas macho en 7 grupos iguales: I: grupo control (GC), en el que se practicó cirugía de control; II: control positivo (CP), en el que se castró a las ratas y se les administró propionato de testosterona, a una dosis de 10mg/kg/día sc para inducción de BPH. III: control comparativo (CC), en el que se indujo BPH y se administró a las ratas finasterida a una dosis de 5mg/kg/día po; IV-VII: (T1-T4), en el que se indujo BPH y se administró a las ratas extracto de moras a una dosis de 25, 50, 100 y 200mg/kg/día po durante 4 días consecutivos. RESULTADOS: La finasterida y/o el extracto de moras, especialmente en 2 dosis elevadas, afectaron significativamente al peso prostático, al índice prostático, al porcentaje de inhibición, a los niveles séricos y prostáticos de dihidrotestosterona (DHT), al antígeno prostático específico sérico (PSA), a los parámetros antioxidantes del tejido prostático, así como a los parámetros histopatológicos e histomorfométricos (espesor epitelial y área acinar) de la próstata. CONCLUSIONES: El extracto de mora tiene efectos protectores frente a HPB experimentalmente inducido en ratas, con respecto a sus parámetros histopatológicos y bioquímicos, y que pueden guardar relación con sus propiedades antioxidantes y reductoras de DHT en el tejido prostático

Protective effect of black mulberry (Morus nigra L.) fruit hydroalcoholic extract against testosterone-induced benign prostatic hyperplasia in rats.

BACKGROUND: Finding new agents for prevention and/or treatment of benign prostatic hyperplasia (BPH) especially from natural sources is a demanding field. OBJECTIVES: This study aimed to evaluate the effect of black mulberry (BM) (Morus nigra) fruit hydroalcoholic extract on the establishment of BPH in rats. MATERIALS AND METHODS: Forty-nine adult male rats were randomly assigned into 7 equal groups: I: Sham control (SC), a sham surgery was performed. II: positive control (PC), rats were castrated and received testosterone propionate, at 10mg/kg/day S.C. for BPH induction. III: comparative control (CC), BPH was induced and the rats received finasteride at 5mg/kg/day P.O. IV-VII: (T1-T4): BPH was induced and the rats received BM extract at 25, 50, 100 and 200mg/kg/day P.O. for 4 consecutive weeks. RESULTS: Finasteride and/or BM extract especially at the two higher dosages, significantly affected prostate weight, prostatic index, percent of inhibition, serum and prostatic levels of dihydrotestosterone (DHT), serum prostate-specific antigen (PSA), antioxidant parameters of prostatic tissue as well as histopathological and histomorphometric parameters (epithelial thickness and acinar area) of prostate. CONCLUSIONS: BM extract has protective effects against experimentally-induced BPH in rats with regard to histopathological and biochemical parameters which may be related to its antioxidant as well as DHT reducing properties in prostatic tissue.