Vitamin E intake and systemic antioxidant status in competitive endurance horses

2005 ◽  
Vol 2 (3) ◽  
pp. 149-152 ◽  
Author(s):  
CA Williams ◽  
DS Kronfeld ◽  
TM Hess ◽  
KE Saker ◽  
JE Waldron ◽  
...  
Keyword(s):  
Vitamin E ◽  
Antioxidant Status ◽  
Plasma Lipid ◽  
Measured Data ◽  
Lipid Hydroperoxides ◽  
Total Glutathione ◽  
Blood Samples ◽  
Total Diet ◽  
And Performance ◽  
Commercial Feeds

AbstractThe objective was to compare vitamin E content in the total diet of Arabian horses competing in the 80 km Research Ride 2002 to the oxidative stress and antioxidant measures throughout the race. Prior to the race, riders completed a detailed nutritional survey, which was used to calculate vitamin E intake. Blood samples, temperature and heart rate were taken the day before the race, at 27 and 48 km during the race, at race completion or elimination and 3 h after race completion. Plasma lipid hydroperoxides, α-tocopherol (TOC), creatine kinase (CK), aspartate aminotransferase (AST), albumin, red and white blood cell total glutathione and glutathione peroxidase were measured. Data were analyzed by Pearson's correlation in SAS. From the survey, it was estimated that horses consumed 2265±114 IU day−1 of vitamin E. A negative correlation was found between the vitamin E intake and CK (r = −0.23; P = 0.002), and AST (r = −0.22; P = 0.003). A positive correlation was found between the vitamin E intake and plasma TOC (r = 0.15; P = 0.005) at all sample times. This suggests that intensely exercising horses supplemented with vitamin E may not have an improved welfare and performance if they are supplemented vitamin E versus what is naturally found in forages and commercial feeds.

scholarly journals Values of plasma lipid hydroperoxides and total antioxidant status in healthy dairy cows: preliminary observations

2003 ◽  
Vol 46 (3) ◽  
pp. 227-233 ◽  
Author(s):  
C. Castillo ◽  
J. Hernández ◽  
M. López-Alonso ◽  
M. Miranda ◽  
J. Luís
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Antioxidant Status ◽  
Clinical Medicine ◽  
Plasma Lipid ◽  
Total Antioxidant Status ◽  
Metabolic Parameters ◽  
Lipid Hydroperoxides ◽  
Free Radical Damage ◽  
Total Antioxidant

Abstract. Metabolic parameters have been used in an attempt to monitor the health, reproductive and nutritional status of dairy cows. Nevertheless, in the last few years the detection of free radical damage, and the protection against it has become very important in the practice of clinical medicine. This report aims to establish values for plasma lipid hydroperoxides (LOOH) and total antioxidant status (TAS) in healthy cows and its relationship with milk yield. The study was carried out with 22 healthy dairy cows divided into two groups: animals with a low production rate and animals with a high milk yield. Results showed that the animals with a high milk yield present higher LOOH levels than the other group. This increase in oxidant compounds is not accompanied by higher levels in protective antioxidant substances. LOOH and TAS measurements give complementary information about the metabolic status of the animal than metabolic parameters alone.

scholarly journals Influence of Peroral Supplementation of Selenium and Vitamin E on the Antioxidant Status of Racing Pigeons

2016 ◽  
Vol 60 (3) ◽  
pp. 24-28 ◽  
Author(s):  
V. Vargová ◽  
F. Zigo ◽  
M. Chripková ◽  
D. Toropilová ◽  
M. Tomko
Keyword(s):  
Alkaline Phosphatase ◽  
Vitamin E ◽  
Critical Period ◽  
Antioxidant Status ◽  
Dry Matter ◽  
Control Group ◽  
Blood Samples ◽  
Commercial Feed ◽  
Supplementation Period ◽  
Before And After

Abstract The racing season is considered a critical period for racing pigeons due to the susceptibility to stress and weakening of the birds. One of the ways how to support their health and avoid problems involves supplementation of mineral-vitamin preparations based on selenium and vitamin E, which act as important antioxidants and protect cells against damage. This study investigated the influence of peroral supplementation of selenium at a dose of 0.3 mg Se.kg−1 feed dry matter (DM) in the form of Na2SeO3 and vitamin E 300 mg.ml−1 added to water at a rate of 4 ml.l−1 during 60 days. The supplemented group comprised 14 pigeons and their results were compared with a control group of 14 pigeons fed non-supplemented commercial feed. Blood samples were collected and examined at the beginning of the supplementation period, one day before a 300 km race and after the race. Pigeons from the supplemented group exhibited increased plasma levels of Se and vitamin E, as well as the activity of glutathione peroxidase (GSH-Px) before and after the 300 km race in comparison with the controls. Comparison of the activity of the enzymes: alanine aminotransferase (ALT), aspartate aminotransferase (ASP), alkaline phosphatase (ALP), and creatinine kinase (CK) at the beginning of the supplementation and one day before the race showed no changes. A significant (P < 0.05) increase in the activity of all investigated enzymes were observed after the race in both groups.

Comparison of oxidative stress and antioxidant status in endurance horses in three 80-km races

2005 ◽  
Vol 2 (3) ◽  
pp. 153-157 ◽  
Author(s):  
CA Williams ◽  
DS Kronfeld ◽  
TM Hess ◽  
KE Saker ◽  
JE Waldron ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Status ◽  
Plasma Lipid ◽  
Repeated Measure ◽  
Lipid Hydroperoxides ◽  
Ambient Conditions ◽  
Muscle Enzymes ◽  
Muscle Enzyme ◽  
Markers Of Oxidative Stress ◽  
Muscle Enzyme Activities

AbstractThis study tested our hypothesis that during an 80-km Research Ride in 2002 (R2) horses that did not finish (NF) the ride would have elevated muscle enzyme activities in the blood and changes in biomarkers of oxidative stress as compared to horses that finished (F) the ride. These results were then compared to previous rides – Old Dominion (OD) and the Research Ride 2001 (R1). For R2, 40 mostly Arabian horses competed and had blood samples collected before, at 27, 48 and 80 km, and 170 to 190 min after the 80-km race. Blood was collected similarly in R1 and OD. Blood was analysed for plasma lipid hydroperoxides (LPO), α-tocopherol (TOC), creatine kinase (CK), aspartate aminotransferase (AST), red and white blood cell total glutathione (GSH-T) and glutathione peroxidase (GPx). Data were analysed using a repeated measure ANOVA in SAS. Associations between muscle enzymes and antioxidant status were determined using Pearson's or Spearman's correlations. Activities of CK and AST were higher (P<0.05) before, during and after the ride in NF than in F; however, TOC, LPO, GSH-T and GPx were not different. In R2, negative correlations were found with GPx and CK (r = −0.21; P = 0.005), GPx and AST (r = −0.15; P = 0.05), and a positive correlation was found with GSH-T and CK (r = 0.18; P = 0.02). Values of CK, LPO, GPx and GSH-T were higher (P<0.05) in R2 than in R1 or OD. The overall comparison of 80-km endurance races suggests the importance of considering the horse's fitness, terrain, ambient conditions and calibre of race when interpreting results from markers of oxidative stress and muscle enzyme leakage.

scholarly journals Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 2023
Author(s):  
Ruixin Li ◽  
Yiwan Zhao ◽  
Gaochong Lv ◽  
Weilin Li ◽  
Jiayin Zhu ◽  
...  
Keyword(s):  
Wind Speed ◽  
Structural Design ◽  
Theoretical Basis ◽  
Thermal Process ◽  
Measured Data ◽  
Passive Heating ◽  
High Rise ◽  
And Performance ◽  
Wall Components ◽  
Near Wall

Near-wall microenvironment of a building refers to parameters such as wind speed, temperature, relative humidity, solar radiation near the building’s façade, etc. The distribution of these parameters on the building façade shows a certain variation based on changes in height. As a technology of passive heating and ventilation, the effectiveness of this application on heat collection wall is significantly affected by the near-wall microclimate, which is manifested by the differences, and rules of the thermal process of the components present at different elevations. To explore the feasibility and specificity of this application of heat collection wall in high-rise buildings, this study uses three typical high-rise buildings from Zhengzhou, China, as research buildings. Periodic measurements of the near-wall microclimate during winter and summer were carried out, and the changing rules of vertical and horizontal microclimate were discussed in detail. Later, by combining these measured data with numerical method, thermal process and performance of heat collection wall based on increasing altitude were quantitatively analyzed through numerical calculations, and the optimum scheme for heat collection wall components was summarized to provide a theoretical basis for the structural design of heat-collecting wall in high-rise buildings.

Functionality and genomics of selenium and vitamin E supplementation in ruminants

2016 ◽  
Vol 56 (8) ◽  
pp. 1285 ◽  
Author(s):  
S. S. Chauhan ◽  
F. Liu ◽  
B. J. Leury ◽  
J. J. Cottrell ◽  
P. Celi ◽  
...  
Keyword(s):  
Vitamin E ◽  
Functional Foods ◽  
Transition Period ◽  
Animal Health ◽  
Antioxidant Properties ◽  
Meat Products ◽  
Lipid Hydroperoxides ◽  
Great Opportunity ◽  
Multiple Functions ◽  
Function Discovery

Selenium (Se) and vitamin E are essential micronutrients for animal health and production. The major function of both Se and vitamin E is to prevent the oxidative damage of biological membranes and they can influence growth, reproduction, immune function, health, and product quality in ruminants. Both Se and vitamin E are important for maintaining low cellular and systemic concentrations of reactive oxygen species and lipid hydroperoxides, to ensure optimum cellular function. Discovery of various selenoproteins and vitamin E-responsive genes has contributed significantly to improving our understanding about multiple functions of Se and vitamin E. There is evidence that these functions extend beyond the classical antioxidant properties to immunomodulation and intracellular cell signalling and gene regulation. Research in recent years has also shown that supranutritional supplementation of Se and vitamin E is required to improve the performance of ruminants under certain stressful conditions such as heat stress and during transition period. Considering the growing awareness among consumers of the benefits of antioxidant-rich food, there is a great opportunity for the livestock industries to focus on producing antioxidant-enriched milk and meat products or functional foods. The present review focuses on the recent developments in understanding multiple functions of Se and vitamin E at the cellular and molecular level and the effects of supranutritional supplementation on ruminant performance. In addition, the paper also articulates the potential opportunities to produce functional foods enriched with antioxidants, and underlines the need for optimum supplementation of these micronutrients for efficient ruminant production.

The effect of polyphenols and vitamin E on the antioxidant status and meat quality of broiler chickens exposed to high temperature

2019 ◽  
Vol 73 (2) ◽  
pp. 111-126 ◽  
Author(s):  
Magdalena Mazur-Kuśnirek ◽  
Zofia Antoszkiewicz ◽  
Krzysztof Lipiński ◽  
Joanna Kaliniewicz ◽  
Sylwia Kotlarczyk ◽  
...  
Keyword(s):  
High Temperature ◽  
Vitamin E ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Antioxidant Status

Multivitamin and mineral supplementation in 1,2-dimethylhydrazine induced experimental colon carcinogenesis and evaluation of free radical status, antioxidant potential, and incidence of ACF

2012 ◽  
Vol 90 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Albert Baskar Arul ◽  
Ignacimuthu Savarimuthu ◽  
Mohammed A. Alsaif ◽  
Khalid S. Al Numair
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Status ◽  
Reduced Glutathione ◽  
Colon Carcinogenesis ◽  
Aberrant Crypt Foci ◽  
Lipid Hydroperoxides ◽  
Entire Study ◽  
Lipid Peroxidation Products ◽  
Histopathological Alterations ◽  
Mineral Supplementation

This study was performed to determine the chemopreventive and antioxidant status of multivitamin and mineral (0.01% in drinking water, ad libitum) supplements in 1,2-dimethylhydrazine (DMH)-induced experimental colon carcinogenesis. Experimental colon carcinogenesis was induced in male albino Wistar rats by injecting DMH (20 mg·(kg body mass)–1) once weekly for 15 consecutive weeks, and administering a multivitamin supplement in 3 regimes (initiation, post-initiation, and entire experimental period) for 32 weeks. We studied lipid peroxidation products (thiobarbituric acid reactive substances, lipid hydroperoxides, conjugated dienes) in the circulation and in the tissues, antioxidant status (superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, and non-enzymatic antioxidant-reduced glutathione) of the tissues, aberrant crypt foci (ACF), and histopathological alterations. DMH-induced rats had an increase in lipid peroxidation products and a lower antioxidant status compared with control animals. Multivitamin and mineral supplementation during the initiation, post-initiation, and the entire study period significantly decreased the levels of lipid peroxidation products in circulation and colonic tissues, significantly elevated the activities of the antioxidant enzymes and reduced glutathione to near normalcy in DMH-induced rats. The incidence of ACF was reduced to 84.1% in rats supplemented with multivitamin and minerals for the entire study and prevented the colonic tissue from histopathological alterations induced by DMH.

Dietary intake and micronutrient status of adolescents: effect of vitamin and trace element supplementation on indices of status and performance in tests of verbal and non-verbal intelligence

1994 ◽  
Vol 71 (6) ◽  
pp. 897-918 ◽  
Author(s):  
Susan Southon ◽  
A. J. A. Wright ◽  
P. M. Finglas ◽  
Angela L. Bailey ◽  
Julie M. Loughridge ◽  
...  
Keyword(s):  
Verbal Intelligence ◽  
Trace Mineral ◽  
Plasma Ascorbic Acid ◽  
Blood Samples ◽  
Food Composition Tables ◽  
Micronutrient Status ◽  
Dietary Record ◽  
And Performance ◽  
Biochemical Indices ◽  
Duplicate Diets

Relationships between micronutrient intake and status, and micronutrient status and performance in tests of intelligence were investigated in a group of adolescents (13–14 years old). Dietary intakes were assessed using a 7 d weighed dietary record method, coupled with the collection of duplicate diets. Vitamin and trace mineral intakes calculated using food composition tables were compared with those obtained by direct analysis of duplicate diets. Micronutrient status was judged via a range of biochemical indices measured in blood samples taken after a 12–15 h fast. Blood samples were taken both before and after a 16-week period of vitamin and trace mineral supplementation. Individual tests of verbal and nonverbal intelligence were also performed pre- and post-supplementation. The results of this study indicate that the use of food table data may lead to substantial over- or underestimation of the intake of several micronutrients. In general, the total calculated or analysed amount of a specific micronutrient consumed did not adequately predict status, as judged by a range of biochemical indices. There were significant changes in status measurements over the 16-week study period, irrespective of supplementation, and these changes were markedly influenced by the initial status of the subject. There was no effect of supplementation on performance in tests of intelligence. However, there was a significant association between plasma ascorbic acid and initial non-verbal intelligence quotient (IQ) in the boys, and between whole blood glutathione peroxidase (EC1.11.1.9) activity and non-verbal and verbal IQ in both sexes. These findings are discussed in relation to other recent studies of the influence of micronutrient supplementation on the psychological performance of children.

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