Lab Anim Res.  2020 Sep;36(3):208-217. 10.1186/s42826-020-00059-9.

Quisqualis indica extract ameliorates low urinary tract symptoms in testosterone propionate-induced benign prostatic hyperplasia rats

Affiliations
  • 1Department of Veterinary Physiology, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
  • 2Department of Veterinary Pathology, College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Republic of Korea
  • 3Huons Research Center, Ansan, Gyeonggi-do, 15588, Republic of Korea
  • 4Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
  • 5Department of Veterinary Physiology, College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Republic of Korea

Abstract

Benign prostate hyperplasia (BPH) is a common disease in old-age males, accounting for approximately 77% of morbidity within the age range of 40 to 70 years. It has been shown that morbidity increases with social graying. Quisqualis indica linn (QI) has been used to treat inflammation, stomach pain, and digestion problems. In this study, we evaluated the symptom-regulating effects of QI extract on a testosterone-induced BPH rat model. After inducing BPH in rats using testosterone propionate (TP) injection, we assessed basal intraurethral pressure (IUP) and increments of IUP elicited by electrical field stimulation (5 V, 5, 10, or 20 Hz) or phenylephrine (Phe) (0.01, 0.03, 0.1 mg/kg IV). To induce BPH, 8-week-old rats were subjected to a daily subcutaneous TP (3 mg/kg) injection for 4 weeks. Finasteride (Fina) (10 mg/kg PO) was administered to the rats in the first treatment, while QI (150 mg/kg PO) was administered to those in the second group. Blood pressure was measured together with IUP, after which low urinary tract (LUT), ventral prostate (VP), testicle, and corpus spongiosum were isolated and weighed. Basal IUPs for the Fina- and QI-treated groups were 87.6 and 86.8%, respectively. LUT and VP organ weights in the QI group were lower than those in the Fina group. However, the QI group showed significantly reduced electrical stimulated or Phe-induced IUP increment compared to the Fina and BPH groups. These results proved that QI can be beneficial for BPH symptoms by inhibiting 5α-reductase and consequently decreasing prostate and releasing urinary pressure.

Keyword

Benign prostatic hyperplasia; Quisqualis indica; Intraurethral pressure; Lower urinary tract symptoms
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