scholarly journals Effect of serum dilution fluids on the wear of unirradiated and high dose gamma-irradiated, vitamin E stabilized UHMWPE

Wear ◽  
2019 ◽  
Vol 430-431 ◽  
pp. 76-80 ◽  
Author(s):  
Vesa Saikko
Keyword(s):  
Vitamin E ◽  
High Dose ◽  
Serum Dilution ◽  
Gamma Irradiated

Employing Gamma Ray Irradiated Giardia lamblia as Trialed Vaccine in Experimental Animal

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Amal Kamil Abdul Sada ◽  
Amany Mohamed Al-Kaysi
Keyword(s):  
Giardia Lamblia ◽  
Gamma Ray ◽  
Age Groups ◽  
Active Phase ◽  
Study Groups ◽  
Negative Control ◽  
Control Group ◽  
High Dose ◽  
Histopathological Changes ◽  
Gamma Irradiated

This is an experimental trial to prepare a vaccine from gamma-irradiated Giardia lamblia which is evaluated in experimental animals. The study was conducted from December 2015 to April 2016. The field survey of the parasite was conducted from those patients attending the laboratories of the Alawi Children's Hospital in Rusafa and the Al-Yarmouk Teaching Hospital in Karkh, through which 1250 stool samples of different age groups were examined. Five groups of mice were used in the study; the first was injected with normal saline and considered as a negative control group, the second was injected with cystic form of non-irradiated Giardia lamblia and considered as a positive control group, whereas the other three groups were injected with gamma irradiated Giardia lamblia at three different doses 10, 15 and 25 rad respectively. Giardia lamblia was primarily cultivated in liver infusion agar for ten days to obtain the active phase. On the sixth day, the cystic phase was purified and standardized to be used in the infection of mice with or without the exposure of gamma rays. Mice showed high sensitivity to parasitic infestation, in the gamma non-irradiated and the irradiated with gamma 10 rad, and 15 rad irradiated groups which was 100%. The results expressed an excystation process of the depleted phases and the release of the feeder phases. The results of the three irradiated groups consisted of histopathological changes of the small, and the rectum by dissection after two weeks of infection, with intestine amputation lesions, as well as ulceration and inflammation of the inflammatory cells represented in small numbers of neutrophil, lymphocytes, and eosinophils. The presence of ulceration and fall of epithelial cells in the intestinal cavity has been shown, and different forms of the parasite have been observed. Mice which was injected with irradiated G lamblia at high dose (25 rad), not show and sensitivity to the challenge infection and no excystation of thy parasite had been done. After 2 wreaks, a comparison was achieved between all study groups in which no histopathological changes were noticed in the mice irradiated with dose of25 rad. After another two weeks, a challenge dose was given (un-attenuated G lamblia) and mice were dissected after another two weeks, no changes on the level of histopathology of intestinal tissue were noticed the results suggested that mice acquire an immunity against the parasite infection.

scholarly journals Prophylactic effect of vitamin E against hepatotoxicity, nephrotoxicity, haematological indices and histopathology induced by diazinon insecticide in mice

2009 ◽  
Vol 55 (3) ◽  
pp. 219-226 ◽  
Author(s):  
Nahla S. El-Shenawy ◽  
Rasha A. Al-Eisa ◽  
Fawzia El-Salmy ◽  
Omema Salah
Keyword(s):  
Body Weight ◽  
Vitamin E ◽  
Kidney Function ◽  
Kidney Tissue ◽  
The Body ◽  
High Dose ◽  
Protective Effects ◽  
Histopathological Changes ◽  
Liver And Kidney ◽  
Haematological Indices

Abstract Considering that the involvement of reactive oxygen species (ROS) has been implicated in the toxicity of various pesticides, this study was designed to study the ameliorative effect of Vitamin E (100 mg/kg body weight) on mice (25 - 30 mg) treated with diazinon (32.5 or 16.25 mg/kg body weight) organophosphate insecticide for 14 days. Subchronic DZN exposure and the protective effects of vitamins E (vitE) were evaluated for their effects on haematological indices, the enzymes concerning liver damage [plasma alanine aminotransferase (ALT), aspartate aminotaransferase (AST), alkaline phosphatise (AIP), and some parameters of kidney function (urea and creatinine) in mice. Additionally, the histopathological changes in liver and kidney tissue were examined. The high dose of diazinon (DZNH) decreased the body weight significantly at the end of experiment. Additionally, the liver and kidney were examines for histopathological changes. The high dose of diazinon decreased body weight significantly. Moreover, there was a statistically significant decrease in haemoglobin (Hb), red blood cell (RBC) and hematocrit (Hct) in diazinon-treated mice compared to controls. This decrease was partially remedied in the diazinon-treated group that also received vitE. Damage in the liver and kidney tissues was also evident as elevated plasma ALT, AST, ALP, urea and creatinine. VitE partially counteracts the toxic effect of DZN and repairs tissue damage in the liver and kidney, especially when supplemented to 1/4 LD50 intoxicated animals. Histopathological changes in liver and kidney were observed only in 32.5 mg/kg DZN given group. These results suggest that the effects of DZN are dose dependent. No pathological findings were observed in vitE + DZN treated groups. According to the present study, we conclude that vitE can reduce the detrimental impacts of diazinon on haematological indicies, as well as liver and kidney function.

scholarly journals A CRITICAL REVIEW ON HYPOTHESIS, PATHOPHYSIOLOGY OF SCHIZOPHRENIA, AND ROLE OF VITAMINS IN ITS MANAGEMENT

2018 ◽  
Vol 11 (8) ◽  
pp. 25
Author(s):  
Rosmi Jose ◽  
Venketeswaramurthy N ◽  
Sambath Kumar R
Keyword(s):  
Vitamin D ◽  
Vitamin E ◽  
Vitamin C ◽  
Critical Review ◽  
Methylenetetrahydrofolate Reductase ◽  
Vitamin Supplementation ◽  
Vitamin B ◽  
High Dose ◽  
Main Effects

This review describes about the literatures addressing the role of vitamin supplementation in schizophrenia. Evidence is suggesting that vitamin supplementation includes Vitamin A, Vitamin D, Vitamin E, Vitamin B complex, and Vitamin C may be important in treatment. In schizophrenia, patients may have increased level of homocysteine (Hcy), due to the polymorphism in methylenetetrahydrofolate reductase and hypofunction of N-methyl-D-aspartate receptors. The vitamins main effects are reduced the Hcy level and maintain dopamine and serotonin levels. Add-on treatment with high-dose B vitamins including B6, B9, and B12 and also Vitamin D can significantly reduce symptoms of schizophrenia more than standard treatments alone.

scholarly journals Vitamin E Ameliorates High Dose trans-Dehydrocrotonin-Associated Hepatic Damage in Mice

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500
Author(s):  
Alana Fontales Lima Rabelo ◽  
Marjorie Moreira Guedes ◽  
Adriana da Rocha Tomé ◽  
Patricia Rodrigues Lima ◽  
Maria Aparecida Maciel ◽  
...  
Keyword(s):  
Vitamin E ◽  
Hepatic Damage ◽  
High Dose ◽  
Histological Alterations ◽  
Effective Antioxidant ◽  
High Doses ◽  
Croton Cajucara

trans-Dehydrocrotonin ( t-DCTN), the diterpenoid from Croton cajucara Bentham, exhibits hypoglycemic and hypolipidemic activities, but in high doses is associated with a discrete hepatotoxicity. In the search for measures to mitigate this, pretreatment with the antioxidants N-acetylcysteine and vitamin E has been examined. Mice that received a high dose t-DCTN (100 mg/kg) manifested hepatic damage, as evidenced by significant elevations in serum ALT and AST, and hepatic GSH, and histological alterations, which could be obliterated by pretreatment with vitamin E, but not with N-acetylcysteine, possibly by creating an effective antioxidant balance.

scholarly journals Dietary Intervention Accelerates NASH Resolution Depending on Inflammatory Status with Minor Additive Effects on Hepatic Injury by Vitamin E Supplementation

Antioxidants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 808
Author(s):  
Julie Hviid Klaebel ◽  
Günaj Rakipovski ◽  
Birgitte Andersen ◽  
Jens Lykkesfeldt ◽  
Pernille Tveden-Nyborg
Keyword(s):  
Vitamin E ◽  
Guinea Pig ◽  
Lipid Accumulation ◽  
Guinea Pigs ◽  
Dietary Intervention ◽  
Liver Weight ◽  
High Dose ◽  
Chow Diet ◽  
Lifestyle Modifications ◽  
Inflammatory Status

Despite the lack of effective pharmacotherapy against nonalcoholic steatohepatitis (NASH) and liver fibrosis, vitamin E (vitE) supplementation and lifestyle modifications are recommended for the management of NASH due to promising clinical results. We recently reported a positive effect of supplementation with 800 IU vitE and atorvastatin on NASH resolution in guinea pigs. In the present study, we investigated the effect of high-dose vitE therapy combined with dietary intervention against progressive NASH and advanced fibrosis in the guinea pig model. Sixty-six guinea pigs received either high-fat (HF) or standard guinea pig chow diet (Control) for 25 weeks. Prior to eight weeks of intervention, HF animals were allocated into groups; dietary intervention (Chow) or dietary intervention with 2000 IU/d vitE supplementation (CvitE). Both Chow and CvitE reduced dyslipidemia, hepatic lipid accumulation and liver weight (p < 0.05), while CvitE further decreased hepatocellular ballooning (p < 0.05). Subanalyses of individual responses within intervention groups showed significant correlation between the hepatic hallmarks of NASH and lipid accumulation vs. inflammatory state (p < 0.05). Collectively, our results indicate that individual differences in sensitivity towards intervention and inflammatory status determine the potential beneficial effect of dietary intervention and high-dose vitE supplementation. Moreover, the study suggests that inflammation is a primary target in NASH treatment.

scholarly journals Profile of Blood Glucose and Insulin after Vitamin C and Vitamin E Supplementation on Active Teenagers

2018 ◽  
Vol 7 (4.26) ◽  
pp. 136
Author(s):  
Irfiansyah Irwadi ◽  
Hayuris Kinandita ◽  
Jamaluddin Mahmud ◽  
Lilik Herawati
Keyword(s):  
Blood Glucose ◽  
Vitamin E ◽  
Vitamin C ◽  
Serum Insulin ◽  
Fasting Blood Glucose ◽  
Combination Group ◽  
Control Group ◽  
High Dose ◽  
Moderate Dose ◽  
Significant Difference

Aim: Antioxidants, such as vitamin C and vitamin E, is widely used as supplements. The aim of this study is to analyze the profile of blood glucose, serum insulin, and  HOMA in active teenagers after vitamin C and vitamin E supplementation.Methods: Subjects (14-16 y.o) consisted of 12 boys and 5 girls, divided into 3 groups: control (4 boys, 2 girls), ‘moderate dose’ of vitamin C and vitamin E combination group (5 boys, 1 girls), and ‘high dose’ of vitamin C and vitamin E combination group (3 boys, 2 girls). The treatment was given for 5 days. Vitamin C and vitamin E for ‘moderate dose’ was 500mg;  200IU, and for ‘high dose’ was 1000mg; 400IU. Fasting Blood Glucose (FGB) and 1 hour BG (1hr_BG), fasting serum insulin (FSI) and 1 hour SI (1hr_SI) was collected after treatment. We also calculated the HOMA-IR and HOMA-β.Result: There was no significant difference on FBG, 1hr_BG, FSI, 1hr_SI, HOMA-IR, and HOMA-β (p≥ 0.05). However, mean FBG and 1hr_BG tended to be higher on the treatment groups. The control group had the lowest HOMA-IR and the highest HOMA-β.Conclusions: We suggest that the supplementation of vitamin C and vitamin E in active teenagers is not essential on glucose homeostasis.  

scholarly journals Serum Metabolomic Response to Low and High Dose Vitamin E Supplementation in Two Randomized Controlled Trials

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1810-1810
Author(s):  
Jiaqi Huang ◽  
Stephanie Weinstein ◽  
Wendy Mack ◽  
Howard Hodis ◽  
Demetrius Albanes
Keyword(s):  
Prostate Cancer ◽  
Vitamin E ◽  
Cancer Prevention ◽  
Low Dose ◽  
Alpha Tocopherol ◽  
P Value ◽  
High Dose ◽  
Atbc Study ◽  
High Dose Vitamin ◽  
Vitamin E Supplementation

Abstract Objectives Vitamin E is an essential micronutrient and critical human antioxidant that has been tested for cancer and cardiovascular preventative effects for decades with conflicting results. For example, prostate cancer incidence was reduced by a low-dose vitamin E supplement in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study, but the findings were not replicated by high-dose vitamin E trials such as the Selenium and Vitamin E Cancer Prevention Trial (SELECT). The present investigation examined the serum metabolomic responses to low- and high-dose vitamin E supplementation in order to gain biological insight into the divergent trial outcomes. Methods We examined baseline and on-study serum samples for 154 men randomly assigned to receive 400 IU vitamin E (as alpha-tocopheryl acetate; ATA) or placebo daily in the Vitamin E Atherosclerosis Prevention Study (VEAPS), and 100 men administered 50 IU ATA or placebo daily in the ATBC Study. Over 970 known metabolites were identified using an ultrahigh-performance LC-MS/MS platform. Linear regression models estimated the change in serum metabolites of men supplemented with vitamin E to those assigned to placebo in VEAPS compared with ATBC. Results Serum alpha-carboxyethyl hydrochroman (CEHC) sulfate, alpha-tocopherol, and beta-/gamma-tocopherol were significantly altered by supplementation with ATA in both the VEAPS and ATBC trials (all P-values ≤ 5.1 × 10−5, the Bonferroni multiple-comparisons corrected statistical threshold). Serum C22 lactone sulfate was also significantly decreased in response to the high-dose vitamin E supplement in VEAPS (β = −0.70, P-value = 8.1 × 10−6), but not altered in the low-dose ATBC trial (β = −0.17, P-value = 0.4). Additionally, changes in several androgenic steroid metabolites were strongly related to the vitamin E supplement-associated change in C22 lactone sulfate only in the high-dose VEAPS trial. Conclusions We found evidence of a dose-dependent vitamin E supplementation effect on a novel C22 lactone sulfate compound as well as several androgenic steroids that may have relevance to previous controlled trial findings for prostate cancer. Funding Sources This research was supported by the Intramural Research Program of the National Cancer Institute, National Institutes of Health, U.S. Public Health Service, Department of Health and Human Services.

scholarly journals Vitamin E Reversed Apoptosis of Cardiomyocytes Induced by Exposure to High Dose Formaldehyde During Mice Pregnancy

2017 ◽  
Vol 58 (5) ◽  
pp. 769-777 ◽  
Author(s):  
Dongyuan Wu ◽  
Zhirong Jiang ◽  
Bing Gong ◽  
Yue Dou ◽  
Mingxuan Song ◽  
...  
Keyword(s):  
Vitamin E ◽  
High Dose

Reduced Chronic Hemolysis during High-Dose Vitamin E Administration in Mediterranean-Type Glucose-6-Phosphate Dehydrogenase Deficiency

1980 ◽  
Vol 303 (8) ◽  
pp. 416-420 ◽  
Author(s):  
Laurence Corash ◽  
Stephen Spielberg ◽  
Christos Bartsocas ◽  
Laurence Boxer ◽  
Reuven Steinherz ◽  
...  
Keyword(s):  
Vitamin E ◽  
Dehydrogenase Deficiency ◽  
High Dose ◽  
Chronic Hemolysis ◽  
Glucose 6 Phosphate Dehydrogenase ◽  
High Dose Vitamin
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