Salivary antioxidant enzymes and lipid peroxidation product malondialdehyde and sialic acid levels among smokers and non-smokers with chronic periodontitis—A clinico-biochemical study

ABSTRACT Objective To estimate the levels of lipid peroxidation product and free radical metabolizing enzymes in normotensive pregnant women and women with pre-eclampsia. Materials and methods The study has been conducted on 50 women between the age group of 20 and 35 years. The women were divided into two groups, i.e. group A — normotensive pregnant women between 20 and 36 weeks of gestation and group B — Pregnant women with pre-eclampsia between 20 and 36 weeks of gestation. Lipid peroxidation product malondialdehyde (MDA) and antioxidant enzymes SOD, GSH and GST were estimated. Results Mean circulating levels of MDA were higher in women with pre-eclampsia as compared to normotensive pregnant women and mean circulating levels of free radical metabolizing enzymes SOD, GSH and GST were decreased in women with pre-eclampsia. Conclusion Pre-eclampsia is a state of pregnancy in which there is increased oxidative stress an depicted by increased level of free radical MDA and decreased levels of antioxidant enzyme to counter act that oxidative stress. How to cite this article Parveen S, Noor N, Moin S, Arshad Z, Banu N. Oxidative Stress and Antioxidant Enzymes in Preeclampsia. J South Asian Feder Obst Gynae 2014;6(1):5-7.

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Carotid intima-media thickness and oxidative stress markers for assessment of atherosclerosis in children with β thalassemia major

Thalassemia Reports ◽

10.4081/thal.2016.4939 ◽

2016 ◽

Vol 6 (1) ◽

Author(s):

Geetanjali Jindal ◽

Prashant Chavan ◽

Ravinder Kaur ◽

Shivani Jaswal ◽

Kamal Kumar Singhal ◽

...

Keyword(s):

Oxidative Stress ◽

Lipid Peroxidation ◽

Oxidized Ldl ◽

Thalassemia Major ◽

Lipid Peroxidation Product ◽

Oxidative Stress Markers ◽

Lipoprotein A ◽

Stress Markers ◽

Total Antioxidant ◽

Peroxidation Product

The present study evaluates carotid intimamedia thickness (CIMT) in children with β thalassemia major to assess atherosclerosis and its relation to the underlying proposed causative mechanisms via lipid peroxidation product malondialdehyde (MDA), oxidized lowdensity lipoproteins (LDL), total antioxidant level, and lipid profile. A cross sectional study was conducted on 62 children (31 cases and 31 controls). CIMT by high resolution ultrasound and biochemical parameters i.e., total cholesterol, triglycerides, high-density lipoproteins, LDL, Oxidized LDL, lipoprotein (a), lipid peroxidation product MDA and total antioxidant were measured in enrolled subjects and compared. In our study, CIMT was significantly increased in β thalassemia major patients’ as compared to healthy controls. Mean CIMT in cases was 0.69±0.11 mm and in controls 0.51±0.07 mm. Mean oxidized LDL (EU/mL) in cases 39.3±34.4 (range 14.4 to 160) was significantly raised (P=0.02, t test) as compared to controls 23.9±13.4 (range 12 to 70). In our study we found MDA levels (nmol/mL) to be increased in β thalassemia patients as compared to controls. Mean MDA was 10.0±3.27 (4.41 to 17.48) in cases while in controls was 6.87±4.55 (1.5 to 17.9). Our study results show CIMT as an early marker of atherogenesis in β thalassemia major. Oxidative stress markers are also increased in β thalassemia major patients and lipoprotein (a) shows a positive correlation with CIMT. The present study points towards various atherogenetic mechanisms in β thalassemia major. 本研究评价β重型地中海贫血患儿颈动脉内膜中层厚度（CIMT），以评估动脉粥样硬化，以及与潜在通过血脂过氧化反应产物丙二醛（MDA）、氧化低密度脂蛋白（LDL）、总抗氧化水平和血脂谱所提出致病机制之间的关系。在62名儿童（31例病例和31例对照）中进行了一项横断面研究。在入组受试者中通过高分辨率超声和生化指标（即总胆固醇、甘油三酯、高密度脂蛋白、LDL、氧化LDL，脂蛋白（a）、血脂过氧化产物MDA和总抗氧化剂）测量CIMT并进行比较。在我们的研究中，CIMT在β重型地中海贫血患者中比健康对照组显著增加。病例组中的平均CIMT为0.69±0.11 mm，对照组0.51±0.07 mm。病例组中平均氧化LDL（EU/mL）为39.3±34.4（从14.4到160的范围）与对照组的23.9±13.4（12至70的范围）相比显著升高（P = 0.02，t检验）。在我们的研究中，我们发现β地中海贫血患者中的MDA水平（nmol/mL）比对照组更高。病例组中的平均MDA为10.0±3.27（4.41至17.48），而对照组为6.87±4.55（1.5到17.9）。我们的研究结果表明，CIMT是β重型地中海贫血动脉粥样硬化的早期标记物。氧化应激标记物在β重型地中海贫血患者中也有增加，脂蛋白（a）显示出与CIMT呈正相关。本研究针对β重型地中海贫血中的各种动脉粥样硬化机制。

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