Showing 8 results for Vitamin E
Dr Ghasem Mosayebi, Mr Ali Ghazavi, Mr Mahmood Reza Khazaei, Mr Mohammad Ali Payani,
Volume 9, Issue 1 (3-2006)
Abstract
Introduction: Free radical-mediated peroxidation of biological molecules, such as lipids, is implicated in the pathogenesis of multiple sclerosis and it's animal model experimental allergic encephalomyelitis(EAE). Low concentration of antioxidant vitamin E has been observed in serum of multiple sclerosis. However, it is not known whether vitamin E has protective effect in EAE. Vitamin E may inhibit EAE by effect on the level of uric acid and Nitric Oxide (NO) production. Materials and Methods: In this experimental study some male C57BL/6 mice were placed in two therapeutic groups (n=8 per group) with age and weight-matched as follow: 1)Vitamin E-treated EAE mice (10mg/kg/every two days of vitamin E given i.p from day-3 until day+19 after disease induction, 2) Non-treated EAE mice (EAE control) received vehicle alone with same schedule. In addition, 5 age and weight-matched male C57BL/6 mice served as normal (non-EAE) controls. Clinical score of disease, uric acid and NO levels of the groups were analysed. Results: Results showed that vitamin E-treated mice had significantly less clinical score of EAE (4±0.8) than non-treated EAE induced mice (5.3±0.44), (p<0.01). Also, there was difference at the onset day of the disease between vitamin E-treated and non-treated EAE-induced mice (day 13±1 and day 11±1, respectively), although was not significant. Concentration of uric acid in vitamin E treated mice were significantly lower than EAE control (p<0.001). There was no difference at the level of NO between the groups. Conclusion: Vitamin E had no effect on NO level, but decreased serum uric acid level. It suggests that vitamin E can reduce or delay the onset of EAE by increasing uric acid consumption.
Mahmood Omrani-Fard, Reza Hedayat Yaghoobi, Maryam Yavari,
Volume 9, Issue 4 (12-2006)
Abstract
Introduction: There are a few clinical trials on human that show the effect of topical vitamin E on keloid and hypertrophic scars. In this investigation we try to study this effect and also show the effect of the concentrations which have not been considered yet in improving hypertrophic scar and keloid healing. Materials and Methods: In a double-blind randomized clinical trial, 32 patients who had hypertrophic scar from 12 weeks ago were given three ointments including placebo and ointments contaning injectional vitamin E (d-α tocopheryl) with different concentrations (300Iu/mg and 600Iu/mg). The scars size, erythema and hardness were evaluated by patients and physicians after 1, 4 and 12 weeks. Data was analyzed using ANOVA and Kruskal Walis tests. Results: After 12 weeks there were no signs or symptoms of dermatitis and rash. Comparison of the scar size after 1 week showed difference between the high concentrated ointment with the others and in the 12th week all of the ointments were different (p<0.001). Evaluation of the scar erythema, in the 1th, 4th and 12th week showed significant difference between vitamin ointments and placebo (p<0.001), also scar hardness in the 12th week was significantly different between groups(p<0.001), but in the first and 4th week no difference was detected in hardness. Conclusion: This study shows that topical vitamin E has good effects on keloid and hypertropic scars. Their effect in decreasing size and erythema is more considerable than scar hardness.
Sayed Mohamad Ali Shariatzadeh, Malek Soleimanimehranjani, Ahmad Hamta, Maryam Ghandizadehdezfuli,
Volume 15, Issue 2 (6-2012)
Abstract
Background: Sodium arsenite has adverse effects on the reproductive system and vitamin E is a strong antioxidant and reproductive factor in the reproductive system. The aim of this study was to investigate the effect of vitamin E on the structure and the number of ovarian follicles during its development in rats treated with sodium arsenite. Materials and Methods: Pregnant Wister rats (n=4) were divided into 4 equal groups, including control, vitamin E (100mg/kg/day), sodium arsenite (8mg/kg/day), and sodium arsenite+vitamin E. Oral treatment of the pregnant rats started from the 7th day of pregnancy till the end of the weaning and continued till the age of 120 days. After the treatment period, the right ovary was removed and fixed, and then the mean number of ovarian follicles and atretic follicles, mean thickness of zona pellucida, and volume of oocytes and its nuclei in different types of follicle were determined. Data were analysed using one-way ANOVA and the mean difference was considered significant at P<0.05. Results: In the vitamin E+sodium arsenite group, significant increase(P<0.05) in the total number of follicles, mean number of primordial, primary, secondary, antral, and graafian follicles, significant reduction (P<0.05) in atretic follicles, and significant increase(P<0.05) in the thickness of zona pllucida in secondary and antral follicles as well as oocyte volume in parimordial and primary follicles and its nuclei in primary, secondary, antral, and graffian follicles were observed in comparison with the other groups. Vitamin E in the sodium arsenite+vitamin E group increased the number of different types of follicles and the thickness of the zona pllucida (P<0.05), decreased the number of atretic follicles, and increased the volume of oocyte and its nuclei to the level of the control group. Conclusion: Vitamin E can be administered as a supplement to compensate for the adverse effects of sodium arsenite.
Mehri Jamilian, Hamid Reza Jamilian,
Volume 15, Issue 3 (8-2012)
Abstract
Background: Primary dysmenorrheal is one of the most common gynecologic diseases. This study was carried out to compare the effects of omega-3 and vitamin E on the treatment of primary dysmenorrheal. Materials and Methods: In a randomized double-blind clinical trial, 80 female students from high schools in Arak, Iran, were selected by simple sampling and randomly divided into two identical groups in 2010. Omega-3 group received one omega-3 capsule (500 mg) per day while the vitamin E group received one vitamin E capsule (400IU) every other day for 60 days. Intensity of pain, duration of pain, and the number of painkillers taken before and after intervention were measured in both groups. Intensity of pain was assessed by VAS scale of pain. Data were analyzed by SPSS software. Results: After intervention, the mean of pain intensity in the omega-3 group decreased to 3.5 which indicated a significant difference in comparison with the corresponding values before intervention (7.40) (p<0.05) and the values in the vitamin E group (5.25) (p<0.05). After intervention, the mean duration of pain in the omega-3 group reached 11.04 hours which showed a significant difference compared with the corresponding values before intervention (31.74) (p<0.05) and the values in the vitamin E group (34.81) (p<0.05). Conclusion: Omega-3 is more effective than vitamin E in the treatment of primary dysmenorrheal and its application as a new therapeutic method to the treatment of primary dysmenorrheal requires further studies.
Sara Ziagham, Zahra Abbaspour, Mohammad Reza Abbaspour,
Volume 15, Issue 6 (11-2012)
Abstract
Background: Urogenital atrophy is a common problem after menopause and quality of life in post-menopauseis seriously affected by the symptoms associated with vaginal atrophy. The aim of this study was to compare the effectiveness of the vaginal suppository of hyaluronic acid and vitamin E in atrophic vaginitis treatment. Materials and Methods: This randomized double-blind clinical trialwas carried out in Ahvaz (Iran) from August to December 2010. Forty postmenopausal women with symptoms of vaginal atrophy were randomly allocatedto two groups to take vaginal suppositories of either 5 mg hyaluronic acid sodium salt (n=20) or 1 mg vitamin E (n=20) for 8 weeks. The symptoms of vaginal atrophy were evaluated by a self-assessed 4-point scaleand the composite score was determined asnone, mild, moderate, and severe in four periods. Results: The results showed that the symptoms were relieved significantly in both groups (P<0.001).The relief of symptoms was significantly superior in the hyaluronic acid group compared with the vitamin E group (P<0.05). Conclusion: Although both hyaluronic acid and vitamin E relieved the vaginal symptoms, improvements were greater in the hyaluronic acid group. Therefore,hyaluronic acid vaginal suppository is suggested for women with vaginal atrophy who do not want to or cannot take local estrogen treatment.
Fahimeh Zare Ebrahim Abad, Abdolhosein Shahverdi, Mitra Heidari Nasr Abadi, Alireza Alizadeh,
Volume 20, Issue 1 (4-2017)
Abstract
Abstract
Background: The aim of this study was to investigate the effect of fed fish oil (FO) with or without vitamin E for mothers on the testis cells of male offsprings.
Materials and Methods: Sixty mature female NMRI mice were divided into different groups: control (CTR; Standard diet(vitamin E 50 mg IU/kg) pre and postnatal period); I) Gavages 0.01 ml/day/mother fish oil (FO)+CTR diet during prenatal period; II) Gavages FO+CTR diet during postnatal period; III) consumed VITE(125 mg IU/kg) 2.5 folded greater than standard recommendations(2×)during prenatal period; IV)consumed VITE(2×)diet during pre and postnatal period; V)consumed VITE(2×)diet during postnatal period; VI) Gavages FO+VITE(2×) diet during prenatal period; VII) Gavage FO+VITE(2×)diet during postnatal period ;VIII) Gavages FO+VITE (2×)diet during pre and postnatal period. After weaning, the testes were collected and histological data were analyzed using SAS software by Duncan test.
Results: testes cells length, width and weight was lower in offspring which their mothers fed FO+CTR diet during prenatal, (p<0.05).Vitamin E consumption during postnatal period improved these parameters (p<0.05). Spermatogoni (47 vs. 43), spermatocyte (43 vs. 34), Spermatid (63 vs. 44), Sertoli (0.9 vs. 2), and Leydig (3 vs. 1.7) were increased as FO+VITE was used than CTR (p<0.05).
Conclusion: The positive effects of supplementation maternal diet by FO with VITE or sole VITE was observed. Thus, antioxidants should be consumed along with omega-3 fatty acids in maternal diet.
Ali Asghar Ghafarizadeh, Gholamhassan Vaezi, Seyed Mohammad Ali Shariatzadeh, Ali Akbar Malekirad,
Volume 20, Issue 6 (9-2017)
Abstract
Abstract
Background: In Asthenoteratozoospermic men, low motility, defected DNA and highly oxidative stress in sperm cause poor assisted reproductive techniques (ART) outcomes. The aim of this study was to determine the effect of Vitamin E (Vit E), as a potent antioxidant, on sperm motility, viability and DNA integrity at different times of in vitro incubation (after 2, 4 and 6-h) to improve asthenoteratozoospermic semen samples for ART.
Materials and Methods: Asthenoteratozoospermic semen samples of 50 volunteers were collected and examined. Each sample was divided into two groups of control and vitamin E (2mM) and kept in the 37 °C and 6 % CO2 for 2, 4 and 6 hours. After this incubation, sperm motility, viability and sperm DNA fragmentation (SCD) were evaluated in each group. Data were analyzed using repeated measurement of ANOVA and T-test. The means were considered significantly different at p<0.05.
Results:Significant decrease in total and progressive motility and viability as well as significant increase in sperm DNA damage (after 6h of incubation) were found in control group vs. the control group before incubation (p<0.05). The sperm motility and viability was significantly higher in vitamin E group compared to untreated control group (p<0.05). Our results also showed that DNA fragmentation significantly was lower after 6h of vitamin E treatment (p<0.05).
Conclusion: In vitro supplementation of vitamin E in asthenoteratozoospermia semen samples may protect spermatozoa from maltreatment effect of ROS during sperm sampling via keeping enzymatic and antioxidant process in optimum condition.
Mehri Jamilian, Nazanin Ravanbakhsh,
Volume 21, Issue 5 (10-2018)
Abstract
Background and Aim: We are aware of no study that examined the effects of vitamin E plus omega-3 fatty acid supplementation on inflammatory and oxidative stress biomarkers in pregnant women with gestational diabetes (GDM). This study aimed to evaluate the effects of vitamin E plus omega-3 supplementation on insulin metabolism and inflammatory and oxidative stress biomarkers in pregnant women with gestational diabetes.
Materials and Methods: This randomized, double-blind, placebo-controlled clinical trial was performed on 60 women with GDM. Subjects were randomly assigned to receive either 400 IU vitamin E plus 1000 mg omega-3 fatty acid supplements (n=30) or placebo (n=30) for 6 weeks. Fasting blood samples were taken at study baseline and after 6 weeks of intervention to quantify biochemical variables.
Findings: Vitamin E plus omega-3 fatty acid supplementation led to a significant rise in plasma total antioxidant capacity (+187.5±224.9 vs. -32.5±136.1 mmol/L, p<0.001) and a significant decrease in MDA levels (-0.1±0.9 vs. +0.6±1.4 µmol/L, p=0.04) compared with placebo. Furthermore, a significant increase in plasma NO levels (+5.0±7.7 vs. -12.0±28.0 µmol/L, p=0.002) was seen after vitamin E plus omega-3 fatty acid supplementation compared with the placebo.
Conclusion: Vitamin E plus omega-3 fatty acid supplementation in GDM women had beneficial effects on biomarkers of inflammation and oxidative stress.
