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Nutrients 2018, 10(10), 1562; https://doi.org/10.3390/nu10101562

Effect of Cistanche Tubulosa Extracts on Male Reproductive Function in Streptozotocin–Nicotinamide-Induced Diabetic Rats

Department of Food Science, National Taiwan Ocean University, Pei-Ning Road, Keelung 20224, Taiwan
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Received: 28 September 2018 / Revised: 16 October 2018 / Accepted: 20 October 2018 / Published: 22 October 2018
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Abstract

Diabetes is a chronic disorder characterized by hyperglycemia due to decreased levels of insulin or the inefficiency of the tissue to use it effectively. Infertility is known as a major outcome of diabetes and affects the male reproductive system by causing sperm impairment and gonadal dysfunction. Cistanche tubulosa is a parasitic plant which has the capacity to improve memory, immunity, and sexual ability, reduce impotence, and minimize constipation. This study was focused on the investigation of the anti-inflammatory and protective effects of echinacoside (ECH) in Cistanche tubulosa extract (CTE) on the male reproductive system of the diabetic rats. The antioxidant, anti-inflammatory, and protective effects of CTE were evaluated by both in vitro and in vivo methods. The in vitro results show that the ECH inhibited reactive oxygen species (ROS) production and improved StAR, CYP11A1, CYP17A1, and HSD17β3 protein expression. The in vivo analysis was carried out with three doses of echinacoside (ECH) (80, 160, and 320 mg/kg) in CTE. In total, 0.571 mg/kg of rosiglitazone (RSG) was administered as a positive control. Diabetes was induced by streptozotocin (STZ) (65 mg/kg) and nicotinamide (230 mg/kg) in combination with a high-fat diet (45%). The in vivo studies confirmed that the ECH improved blood sugar levels, insulin resistance, leptin resistance, and lipid peroxidation. It can restore kisspeptin 1 (KiSS1), G protein-coupled receptor GPR 54, suppressor of cytokine signaling 3 (SOCS-3), and sirtuin 1 (SIRT1) messenger ribonucleic acid (mRNA) expression in the hypothalamus and recover sex hormone level. Thus, this study confirmed the antioxidant, anti-inflammatory, and steroidogenesis effects of CTE. View Full-Text
Keywords: diabetes; infertility; Cistanche tubulosa extract (CTE); echinacoside (ECH); anti-inflammatory activity; antioxidant activity; steroidogenesis effects diabetes; infertility; Cistanche tubulosa extract (CTE); echinacoside (ECH); anti-inflammatory activity; antioxidant activity; steroidogenesis effects
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Kong, Z.-L.; Johnson, A.; Ko, F.-C.; He, J.-L.; Cheng, S.-C. Effect of Cistanche Tubulosa Extracts on Male Reproductive Function in Streptozotocin–Nicotinamide-Induced Diabetic Rats. Nutrients 2018, 10, 1562.

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