Dharmajaya Ridha, Sari Dina Keumala
Department of Neurosurgery, Faculty of Medicine Universitas Sumatera Utara, Medan, Indonesia.
Department of Nutrition, Faculty of Medicine Universitas Sumatera Utara, Medan, Indonesia.
Ann Med Surg (Lond). 2022 Mar 23;77:103231. doi: 10.1016/j.amsu.2021.103231. eCollection 2022 May.
Oxidative stress has been considered as one of many contributor in developing risk of cancer. Oxidative stress may also promote the increasing number of free radical. Malondialdehyde (MDA) is one of radical oxidative marker, while Superoxide Dismutase (SOD) play role as endogenous antioxidant. It has been postulated that in cancer cells there is an increase of oxidative stress compared to normal cell.
This study is a case controlled analytical study to find the relationship between levels of MDA and SOD in patients with brain tumours. The sample obtained was 35 people who met the inclusion and exclusion criteria. Based on this analysis, it will be determined whether there is a significant relationship between levels of MDA and SOD in each type of brain tumours.
There is no significant relationship from all groups brain tumour and all tumours have a low correlation (r = 0.187) in the value of superoxide dismutase level. There is also no significant relationship from all groups (p = 0.302) and a low correlation (r = 0.187) to the value of Malondialdehyde level.
There was no relationship between superoxide dismutase in any type of intracranial tumour in this study. These concluded that superoxide values could not be a risk factor for primary intracranial tumours. Levels of MDA which is an indicator of lipid peroxidation, were significantly higher in patients consisting of meningiomas and gliomas. In high grade gliomas, the MDA increases due to the progressive progression of glioma tumours due to an increase in Reactive oxygen species levels.
This study shows no correlation between SOD as an endogenous antioxidant and MDA as radical oxidative marker in primary brain tumour.
氧化应激被认为是导致癌症风险增加的众多因素之一。氧化应激还可能促使自由基数量增加。丙二醛(MDA)是自由基氧化标志物之一,而超氧化物歧化酶(SOD)作为内源性抗氧化剂发挥作用。据推测,与正常细胞相比,癌细胞中的氧化应激有所增加。
本研究是一项病例对照分析研究,旨在探寻脑肿瘤患者中丙二醛(MDA)和超氧化物歧化酶(SOD)水平之间的关系。所获取的样本为35名符合纳入和排除标准的人员。基于该分析,将确定每种类型脑肿瘤中MDA和SOD水平之间是否存在显著关系。
所有脑肿瘤组之间均无显著关系,且所有肿瘤在超氧化物歧化酶水平值上的相关性较低(r = 0.187)。所有组之间在丙二醛水平值上也无显著关系(p = 0.302)且相关性较低(r = 0.187)。
在本研究中,任何类型的颅内肿瘤中超氧化物歧化酶之间均无关系。由此得出结论,超氧化物值并非原发性颅内肿瘤的风险因素。作为脂质过氧化指标的丙二醛水平,在脑膜瘤和神经胶质瘤患者中显著更高。在高级别神经胶质瘤中,由于活性氧水平升高导致神经胶质瘤肿瘤进展,丙二醛增加。
本研究表明,在原发性脑肿瘤中,作为内源性抗氧化剂的SOD与作为自由基氧化标志物的MDA之间无相关性。