Vitamin E prevents the elevation of thiobarbituric acid-reactive substances but not hemolytic anemia in rats fed excess methionine

1996 ◽  
Vol 7 (2) ◽  
pp. 77-84 ◽  
Author(s):  
Y Ogo
Keyword(s):  
Vitamin E ◽  
Hemolytic Anemia ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substances

scholarly journals Oxidative stability of tilapia feeds containing Saccharomyces cerevisiae and Spirulina platensis

2020 ◽  
Vol 50 (1) ◽  
Author(s):  
Thiago Luís Magnani Grassi ◽  
Juliana Sedlacek-Bassani ◽  
Elisa Helena Giglio Ponsano
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Vitamin E ◽  
Spirulina Platensis ◽  
Nile Tilapia ◽  
Room Temperature ◽  
Control Diet ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substances ◽  
Oxidative Rancidity ◽  
Plastic Bags

ABSTRACT: The aim of this study was to evaluate the effect of the inclusion of microbial biomass on the oxidative rancidity of tilapia rations stored for 12 months. Treatments included a control diet and diets supplemented with either 0.01% vitamin E, 0.25 and 0.5% of Saccharomyces cerevisiae and 0.25 and 0.5% of Spirulina platensis. Experimental diets were stored in the dark inside plastic bags at room temperature (25 °C) for 12 months. The oxidative rancidity was measured as thiobarbituric acid reactive substances (TBARS). It was concluded that the inclusions of Spirulina platensis at 0.25% (1.734 ± 0.206) and 0.5% (1.629 ± 0.181) and Saccharomyces cerevisiae at 0.5% (1.459 ± 0.305) minimized the oxidative rancidity in comparation to control diet (2.843 ± 0.109) of Nile tilapia until 12 months of storage.

scholarly journals Markers of oxidative and antioxidative activity in female dogs with mammary gland tumour with and without additional vitamin E supplementation

2012 ◽  
Vol 81 (3) ◽  
pp. 275-280 ◽  
Author(s):  
Renata Stavinohová ◽  
Jana Lorenzová ◽  
Ivana Papežíková ◽  
Ivana Borkovcová ◽  
Jakub Pfeifr ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Vitamin E ◽  
Antioxidative Activity ◽  
Thiobarbituric Acid ◽  
Thiol Groups ◽  
Thiobarbituric Acid Reactive Substances ◽  
Protein Thiol ◽  
Antioxidative Status ◽  
Group 2 ◽  
Gland Tumour

The present study determined markers of oxidative and antioxidative activity in dog females affected with mammary gland tumour compared to healthy ones. The effect of additional vitamin E supplementation on oxidative and antioxidative status was evaluated as well. The study included 29 female dogs divided into 4 groups (groups 1 and 2 included females with a mammary gland tumour; groups 3 and 4 included healthy female dogs). Additional vitamin supplement containing α-tocopherol was given to the females of groups 1 and 4. Dogs from groups 1 and 2 were anaesthetized before surgery (ovariohysterectomy and mastectomy); anaesthesia was used also in group 3, but without performeing surgery. The content of vitamin E (free α-tocopherol), marker of antioxidative status, was measured in blood serum by liquid chromatography. The concentration of thiobarbituric acid reactive substances, marker of oxidative status, in serum and concentrations of protein and non-protein thiol groups, markers of oxidative and antioxidative status, in blood serum and in red blood cells were measured colorimetrically. In females with a mammary gland tumour from group 2, concentration of thiobarbituric acid reactive substances was significantly higher than 14 days after surgery and compared to healthy ones as well. In females with a mammary gland tumour from group 2, concentration of protein thiol groups in serum was significantly lower and concentration of non-protein thiol groups in serum was significantly higher than in healthy controls. The values of protein thiols in erythrocytes in females with mammary gland tumour from group 1 were significantly higher before supplementation with vitamin E. The present study revealed that females with a mammary gland tumour were more burdened with oxidative stress compared to healthy dogs. The removal of the mammary gland tumour led to improvement of oxidative and antioxidative status. This is the first report focusing on the effect of additional α-tocopherol supplementation on reducing oxidative stress by increasing antioxidative activity in females affected with mammary gland tumour; however, we did not prove it.

scholarly journals Dietary lipid sources and vitamin E affect fatty acid composition or lipid stability of breast meat from Muscovy duck

2010 ◽  
Vol 90 (3) ◽  
pp. 371-378 ◽  
Author(s):  
A. Schiavone ◽  
M. Marzoni ◽  
A. Castillo ◽  
J. Nery ◽  
I. Romboli
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Vitamin E ◽  
Fish Oil ◽  
Acid Composition ◽  
Thiobarbituric Acid ◽  
Muscovy Duck ◽  
Thiobarbituric Acid Reactive Substances ◽  
Breast Meat ◽  
Lipid Stability

A trial was conducted in order to assess the fatty acid composition and lipid stability of breast meat from Muscovy ducks (Cairina moschata domestica L.) fed a basal diet supplemented with 20 g kg-1 of soybean oil or fish oil and 30 or 230 mg kg-1 α-tocopheryl acetate (α-TA). A total of 120 one-day-old female muscovy ducklings were distributed over 12 pens (10 birds/pen). Growth performance traits were measured through the study. Each dietary treatment was randomly administered to three replicates when birds were 43 d until the slaughtering age of 66 d. Dietary treatments did not induce differences in growth performances and slaughter traits. Similarly, proximate composition and pH of breast muscle were not influenced by the diets. Significant increases in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contents in breast meat of ducks fed fish-oil-supplemented diets was observed. Lipid oxidation, expressed as thiobarbituric acid reactive substances (TBARS), of breast meat from birds fed 230 mg kg-1 α-TA-supplemented diets was significantly lower, compared with those fed diets supplemented with 30 mg kg-1 α-TA, both 1 and 7 d after slaughter.Key words: Duck, meat, fatty acid, vitamin E, thiobarbituric acid reactive substances

Thiobarbituric acid reactive substances and vitamin E in healthy women and patients with pregnancy-induced hypertension

2001 ◽  
Vol 1 (5) ◽  
pp. 259-266
Author(s):  
N[eacute]stor J. Aparicio ◽  
Mirta Joao ◽  
Pablo Fernandez ◽  
Marta Cortelezzi ◽  
Viviana Caram[eacute]s ◽  
...  
Keyword(s):  
Vitamin E ◽  
Thiobarbituric Acid ◽  
Pregnancy Induced Hypertension ◽  
Thiobarbituric Acid Reactive Substances ◽  
Healthy Women ◽  
Induced Hypertension

Diaphragmatic function after resistive breathing in vitamin E-deficient rats

1993 ◽  
Vol 74 (1) ◽  
pp. 267-271 ◽  
Author(s):  
A. Anzueto ◽  
F. H. Andrade ◽  
L. C. Maxwell ◽  
S. M. Levine ◽  
R. A. Lawrence ◽  
...  
Keyword(s):  
Vitamin E ◽  
Contractile Function ◽  
Thiobarbituric Acid ◽  
Force Frequency ◽  
Sprague Dawley ◽  
Thiobarbituric Acid Reactive Substances ◽  
Vitamin E Deficiency ◽  
Deficient Diet ◽  
Resistive Breathing

The effects of vitamin E deficiency on diaphragm function were studied at rest and after resistive breathing (RB) in Sprague-Dawley rats (wt 300–400 g). The animals were pair fed a vitamin E-deficient diet (E-def) or a matched vitamin E-sufficient diet (E-suf). Each diet group was then further subdivided into a group that breathed unimpeded (control) and a second group that breathed through an inspiratory resistor until the animals were unable to sustain 70% of their maximum airway pressure. Diaphragm samples were obtained for analysis of thiobarbituric acid-reactive substances, glutathione (GSH) concentrations, and glutathione disulfide (GSSG) concentrations. In vitro isometric contractile studies were also performed and included twitch (Pt) and maximum tetanic (Po) tensions, force-frequency curves, fatigue index, and recovery index. Pt was significantly reduced in the E-suf RB group as well as both of the E-def groups. Po was also significantly reduced in both E-def groups. The E-def rats subjected to RB showed a significant decrease in tension at both high and low frequencies compared with the E-suf rats. Concentrations of diaphragm thiobarbituric acid-reactive substances were significantly increased in both E-def groups. RB in both E-suf and E-def rats resulted in increases in diaphragm concentrations of GSSG and decreases in the GSH/GSSG ratios. We conclude that reduction of contractile function, lipid peroxidation, and activation of the GSH redox cycle occur with RB and that these effects are significantly increased in the presence of vitamin E deficiency.

scholarly journals Meat quality of lambs supplemented with intramuscular vitamin E

2018 ◽  
Vol 38 (4) ◽  
pp. 679-684
Author(s):  
Aline A. Morgado ◽  
Giovanna R. Nunes ◽  
Beatriz R. Villas Bôas ◽  
Paola B.J. Carvalho ◽  
Paulo H.M. Rodrigues ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Vitamin E ◽  
Meat Quality ◽  
Live Weight ◽  
Thiobarbituric Acid ◽  
Alpha Tocopherol ◽  
Thiobarbituric Acid Reactive Substances ◽  
Muscle Ph ◽  
Four Blocks

ABSTRACT: This study evaluated the effects of intramuscular alpha-tocopherol (vitamin E) supplementation on meat quality characteristics of Santa Inês and Dorper crossbreed lambs. All animals were feed with a high concentrated diet in feedlot. Eight days before slaughter, the animals were distributed into four blocks according to weight gain. At the seventh and fourth days before slaughter, they were intramuscularly treated with 0, 10 or 20 IU of DL-alpha-tocopherol per kg of metabolic body weight. At slaughter they had 138 days of age and 43.6 kg of live weight, in average. Carcasses were stored for 24 hours under refrigeration at 2°C. Longissimus thoracis muscle pH (pH24h) and color (lightness, yellowness and redness) were analyzed and its samples were collected for evaluation of shear force (SF), cooking loss (WLC), fatty acid composition (FA) and thiobarbituric acid reactive substances after one (TBARS1m) and after five months (TBARS5m) of freezing. Linearity deviation effect was observed for lightness (L*; P=0.0042) and yellowness (b*; P=0.0082). Intramuscular administration of 10 or 20 IU of alpha-tocopherol/kg of metabolic weight did not influence the conservation of fatty acid in the carcasses, but benefit L* and b* values.

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