Department of Biochemistry, Functional Foods, Nutraceuticals and Phytomedicine Laboratory, Federal University of Technology, Akure, Nigeria.
Department of Biochemistry, Federal University Oye Ekiti, Oye, Nigeria.
J Complement Integr Med. 2023 Nov 17;21(1):80-87. doi: 10.1515/jcim-2023-0101. eCollection 2024 Mar 1.
This research work studied the phenolic composition of (PM), the inclusion of dietary supplementation of PM leaves on sexual functions and its connection to inhibit enzymes (arginase and phosphodiesterase-5) and nitric oxide level, linked to type 2 diabetes-induced erectile dysfunction in rats.
Gallic acid, chlorogenic and ellagic acids, Kaempferol, and epicatechin etc. was spotted with High performance liquid chromatography-diode array detector from PM extract. Twenty-five (25) rats were used for the study. Five rats were placed with basal diet; diets not supplemented with PM leaves (normal rat group) while twenty rats were made diabetic by feeding them with high fat diet for two weeks, prior to single injection with 35 mg/kg of streptozotocin (STZ). After checking with glucometer, experimental animals with blood glucose level >250 mg/dL were accepted as diabetic. The diabetic rats were subsequently divided into four groups of five rats each (n=5). The diabetic rats were placed on basal diet, or diets supplemented with PM leaves (10 % or 5 % inclusion) or sildenafil citrate (SC).
The result revealed that PM supplemented diets caused significant (p<0.05) reduction in blood glucose level, and augmented erectile function by inhibiting arginase and PDE5 activities as well as enhancing nitric oxide level.
In conclusion, dietary inclusion of PM leaves could serve as a potent nutraceutical source in hyperglycemia induced erectile dysfunction management.
本研究工作研究了(PM)的酚类成分,研究了饮食中添加 PM 叶提取物对性功能的影响,以及其与抑制酶(精氨酸酶和磷酸二酯酶-5)和一氧化氮水平的关系,这些与 2 型糖尿病引起的大鼠勃起功能障碍有关。
采用高效液相色谱-二极管阵列检测器从 PM 提取物中检测到没食子酸、绿原酸和鞣花酸、山柰酚和表儿茶素等。本研究使用了 25 只大鼠。5 只大鼠给予基础饮食;不补充 PM 叶提取物的饮食(正常大鼠组),而 20 只大鼠给予高脂肪饮食喂养两周,然后单次注射 35mg/kg 链脲佐菌素(STZ)。用血糖仪检查后,血糖水平>250mg/dL 的实验动物被接受为糖尿病。随后,将糖尿病大鼠分为 5 只一组的四组(n=5)。糖尿病大鼠给予基础饮食或补充 PM 叶提取物(10%或 5%)或西地那非柠檬酸酯(SC)的饮食。
结果表明,PM 补充饮食可显著降低血糖水平(p<0.05),并通过抑制精氨酸酶和 PDE5 活性以及增强一氧化氮水平来增强勃起功能。
总之,饮食中添加 PM 叶提取物可能是治疗高血糖引起的勃起功能障碍的有效营养源。