Vijayprasad Sanghishetti, Bb Ghongane, Bb Nayak
Student, Department of Pharmacology, BJ Govt Medical College , Pune, Maharasthra, India .
Professor & Head, Department of Pharmacology, B J Govt Medical College , Pune, Maharashtra, India .
J Clin Diagn Res. 2014 Jul;8(7):HC05-8. doi: 10.7860/JCDR/2014/8432.4622. Epub 2014 Jul 20.
Stress is defined as a general body response to initially threatening external or internal demands, involving the mobilization of physiological and psychological resources to deal with them. Recently, oxidative stress has become the focus of interest as a potential cause of male infertility. Normally, equilibrium exists between reactive oxygen species (ROS) production and antioxidant scavenging activities in the male reproductive organs. The ascorbic acid is a known antioxidant present in the testis with the precise role of protecting the latter from the oxidative damage. It also contributes to the support of spermatogensis at least in part through its capacity to maintain antioxidant in an active state.
Group1: Normal Control animal received Distilled water, Group 2: Positive control (Only Stress), Group 3: Normal rats received an intermediate dose of Vitamin C (20mg/kg/day), Group 4: Stress + Low dose Vitamin C (10mg/kg/day), Group 5: Stress+ Intermediate dose Vitamin C (20mg/kg/day), Group 6: High dose Vitamin C (30mg/kg/day). On 16(th) day effect of stress on body weight, Reproductive organ weight, sperm parameters, and hormonal assay was studied.
In the present context, in stress group the sperm count, motility, testicular weight declined significantly. The intermediate dose and high dose of vitamin C showed significantly increased effect on the sperm count and motility.
Various physiological changes produced force swimming indicates that swimming is an effective model for producing stress in albino rats. The results suggest that Vitamin C supplementation improves the stress induced reproductive infertility due to both their testosterone increase effect and their antioxidant effect.
压力被定义为身体对最初具有威胁性的外部或内部需求的一种总体反应,涉及调动生理和心理资源来应对这些需求。最近,氧化应激作为男性不育的一个潜在原因已成为研究热点。正常情况下,男性生殖器官中活性氧(ROS)的产生与抗氧化清除活性之间存在平衡。抗坏血酸是睾丸中一种已知的抗氧化剂,其确切作用是保护睾丸免受氧化损伤。它还至少部分地通过维持抗氧化剂处于活性状态的能力,对精子发生起到支持作用。
第1组:正常对照动物接受蒸馏水;第2组:阳性对照(仅应激);第3组:正常大鼠接受中等剂量的维生素C(20毫克/千克/天);第4组:应激 + 低剂量维生素C(10毫克/千克/天);第5组:应激 + 中等剂量维生素C(20毫克/千克/天);第6组:高剂量维生素C(30毫克/千克/天)。在第16天,研究了应激对体重、生殖器官重量、精子参数和激素测定的影响。
在本研究中,应激组的精子数量、活力和睾丸重量显著下降。中等剂量和高剂量的维生素C对精子数量和活力有显著的增加作用。
强迫游泳产生的各种生理变化表明,游泳是在白化大鼠中产生应激的一种有效模型。结果表明,补充维生素C可改善应激诱导的生殖不育,这归因于其睾酮增加作用和抗氧化作用。