Department of Physiology, Veterinary Medicine College, University of Kerbala, Karbala, Iraq.
Department of Microbiology, Veterinary Medicine College, University of Kerbala, Karbala, Iraq.
Open Vet J. 2024 Aug;14(8):1836-1842. doi: 10.5455/OVJ.2024.v14.i8.11. Epub 2024 Aug 31.
Hypercholesterolemia is frequently linked to an elevated risk of cardiovascular diseases, including heart attacks and strokes. Additionally, it could be connected to a higher susceptibility to osteoporosis. Hypercholesterolemia can stimulate the differentiation and activity of osteoclasts, leading to enhanced bone reabsorption and a subsequent net loss of bone tissue.
The purpose of this study was to examine the influence of a high-cholesterol diet on osteoporosis in male rats with differences in biological and oxidative indicators in the hypercholesterolemia diet in male rats.
The samples in this study were twenty male rats, ranging between 1.5 and 2 months, were separated into two groups. In one group, 10 rats were fed a regular diet, while in another group, 10 rats were fed a high-cholesterol diet (2%) over the course of 8 weeks. Samples of blood were obtained at the last stage of the experiment. To calculate physiological and biological markers including extracellular signal-regulated kinase (ERK), tartrate-resistant acid phosphatase (TRAP), hormones, malondialdehyde (MDA), and glutathione (GSH).
The results of this study demonstrated a decrease in GSH levels, an increase in ERKs, no significant change in serum TRAP levels, an increase in MDA levels in the blood, and elevated levels of parathyroid hormone, calcitonin, and vitamin D in the cholesterol group.
Increased oxidative stress, altered signaling, and disruptions in calcium/bone metabolism associated with cholesterol-related conditions and monitoring biomarker ERK can provide valuable information about disease progression.
高胆固醇血症常与心血管疾病风险增加相关,包括心脏病发作和中风。此外,它可能与骨质疏松症的易感性增加有关。高胆固醇血症可刺激破骨细胞的分化和活性,导致骨吸收增强,随后净骨组织丢失。
本研究旨在探讨高胆固醇饮食对雄性大鼠骨质疏松的影响,并研究雄性大鼠高胆固醇饮食中生物学和氧化指标的差异。
本研究的样本为 20 只雄性大鼠,年龄在 1.5 至 2 个月之间,分为两组。一组 10 只大鼠喂食常规饮食,另一组 10 只大鼠喂食高胆固醇饮食(2%)8 周。在实验的最后阶段采集血液样本。计算包括细胞外信号调节激酶(ERK)、抗酒石酸酸性磷酸酶(TRAP)、激素、丙二醛(MDA)和谷胱甘肽(GSH)在内的生理和生物学标志物。
本研究结果表明,GSH 水平降低,ERK 升高,血清 TRAP 水平无显著变化,血液 MDA 水平升高,胆固醇组甲状旁腺激素、降钙素和维生素 D 水平升高。
与胆固醇相关的疾病状态下氧化应激增加、信号转导改变以及钙/骨代谢紊乱,监测生物标志物 ERK 可以提供有关疾病进展的有价值信息。