Showing 5 results for Vitamin E
Dr M Soleimani Mehranjani, Mrs A Azimi,
Volume 22, Issue 4 (10-2014)
Abstract
Introduction: Vitamin E as a strong antioxidant plays an important role in inhibiting free radicals. Therefore, this study aimed to investigate the effect of vitamin E on the viability, morphology and osteogenic differentiation in bone marrow mesenchymal stem cells of an adult rat.
Methods: The bone marrow mesenchymal stem cells were extracted using the flashing-out method. At the end of the third passage, cells were divided into groups of control and experimental. Experimental cells were treated withVitamin E (5,10,15,25,50,100,150μM) for a period of 21 days in the osteogenic media containing 10% of fetal bovine serum. The cell viability, bone matrix mineralization, intercellular and extracellular calcium deposition, alkaline phosphatase activity, expression of genes and synthesis of proteins of osteopontin and osteocalcin as well as morphological changes of the cells were investigated. The study data was analyzed using one-way ANOVA and T-Test setting the significant P value at P<0.05.
Results: Within vitamin- E treated cells, the mean viability, mean bone matrix mineralization, calcium deposition, alkaline phosphatase activity, expression and synthesis of osteopontin and osteocalcin of the mesenchymal stem cells treated with vitamin E significantly increased in a dose dependent manner. Also cytoplasm extensions were observed in the cells treated with vitamin E.
Conclusion: Since vitamin E caused a significant increase in cell viability and osteogenic differentiation in the mesenchymal stem cells, therefore it can be utilized in order to increase cell differentiation and cell survival.
S Rezaei Tireh Shabankareh , J Mohiti Ardakani , R Fallah, M Karimi, F Pourrajab, R Ehsani, N Rustaei Rad ,
Volume 23, Issue 11 (2-2016)
Abstract
Introduction: Epilepsy is regarded as one of the prevalent neurological disorders in children. The role of anti-oxidants in protection of epilepsy has been discussed in several studies. Vitamin E can be mentioned as a natural antioxidant to neutralize free radicals. Therefore, the present study aimed to evaluate the effects of vitamin E on oxidative stress markers such as malone dialdehyde(MDA) and protein carbonyl(PC) in children suffering from idiopathic epilepsy and vitamin D deficiency.
Methods: In the current study, children suffering from idiopathic epilepsy and vitamin D deficiency were randomly divided into two groups. One group was treated with 50000 units of vitamin D oral capsules (per week) for 8 weeks and the other group was treated with 100 units of vitamin E (per day) for one month as well as 50000 unit of vitamin D for 8 weeks. The amount of MDA and PC were measured by the spectrophotometer method. The obtained data were analyzed via the SPSS software (ver, 19) using t-test.
Results: The results indicated that the amount of MAD and PC revealed a significant decrease after the treatment. In fact, in the group treated with vitamin E, the amount of PC decreased significantly compared with the other group, though MDA reduction was not proved to be significant.
Discussion: The findings of the present study revealed that treatment with vitamin E could reduce the PC amount in regard with epileptic patients.
Hanieh Saramad, Farah Farokhi, Gholamreza Najafi, Ali Shalizar Jalali,
Volume 25, Issue 10 (1-2018)
Abstract
Introduction: It has been shown that mobile radiations (MRs) have detrimental effects on brain histoarchitecture and vitamin E as a powerful antioxidant can exhibit neuroprotective effects. This study was carried out to evaluate the protective effects of vitamin E against MRs-induced histological changes in rat brain.
Methods: Adult female Wistar rats were randomly categorized into 4 groups (n₌6), including untreated control, experimental group1 (14 days exposure to mobile calls, 12 times every day and each time for 10 minutes by Huawei H30–U10 cell phone and then, sampling on day 15), experimental group2 (14 days treatment and then, sampling after 40 days) and experimental group3 (radiation + vitamin E 100 mg/kg intramuscularly before MRs exposure).
Results: MRS-treatedrats showed significant reduction in body weight with an increase in brain relative weight. Moreover, MRS resulted in oxidative stress in brain tissue as well as increase in numbers of neurons with pyknotic nuclei in rats hippocampus. Interestingly, vitamin E co-administration led to oxidative stress suppression in brain tissue and nuclear pyknosis reduction in rats hippocampus.
Conclusion: Vitamin E can attenuate MRs- induced histological alterations and oxidative stress in rat hippocampus probably due to antioxidant activities.
Malek Soleimani Mehranjani, Monireh Mahmoodi, Marziye Amjadi,
Volume 26, Issue 2 (5-2018)
Abstract
Introdution: Bisphenol A (BPA) as an environmental pollutant has estrogenic effects and can induce oxidative stress in the testis tissue. The aim of the present study was to investigate the role of vitamin E (Vit E), as a strong antioxidant, on the adverse effect of BPA on adult rat testis tissue.
Methods: Male rats (220±15g) were divided into 4 groups (n=6/each): control, Bisphenol A (250 mg/kg/day), Bisphenol A+ Vit E (150 mg/kg/day) and Vit E and orally treated for 56 days. At the end of the treatment, the right testis was removed and after fixation, sectioning, tissue processing and staining with Heidenhain's Azan method was evaluated stereologically. The serum testosterone and malondialdehyde (MDA) levels were also measured. Data were analyzed using one way ANOVA and Tukey's test and the means were considered significantly different (P<0.05).
Results: A significant decrease in the total volume of testis, volume and diameter of seminiferous tubule and its height of the germinal epithelium and thickness of the basement membrane, number of spermatids, spermatocyte and sertoli cells, Serum testosterone levels and a significant increase in the serum MDA level were found in the Bisphenol A group compared to the control group. The above parameters were compensated to the control level in the Bisphenol A + Vit E group.
Conclusion: Vitamin E, as a strange antioxidant, could compensate many adverse the effects of Bisphenol A on the testis tissue, so it is suggested that it can be used as a potential supplement in case of BPA intoxication
Mehdi Basaki,
Volume 33, Issue 1 (4-2025)
Abstract
Introduction: Cardiovascular diseases are responsible for about one-third of deaths worldwide. Consequently, innovative strategies for the development and treatment of cardiovascular diseases are of great interest. Vitamin E is known for its unique and remarkable anti-oxidant and anti-inflammatory properties. The advantages of vitamin E in cardiovascular diseases have been investigated and the relationship between lower vitamin E levels and increased cardiovascular events supports this view. However, clinical trials reveal inconsistent and disappointing results in reducing cardiovascular events with vitamin E supplementation. The analysis of studies shows that in addition to the amount, duration of consumption, the type of vitamin E isoform, and its natural or synthetic source, factors such as genetic polymorphisms and the clinical status of users also affect the impact of vitamin E supplementation on cardiovascular events.
Conclusion: Patients with cardiovascular diseases, as well as those receiving preventive care for cardiovascular events or at risk of bleeding, should take Vitamin E only under medical supervision. Considering that low concentrations of antioxidants such as alpha-tocopherol can lead to greater susceptibility to diseases related to oxidative stress and inflammation in the population, reviewing or reinterpreting the mechanisms of vitamin E effects in the cardiovascular process is essential for a better understanding of the relationship between Vitamin E and cardiovascular diseases. It is equally important to establish public health initiatives and strategies to encourage the intake of natural vitamin E sources and healthy fats.
