Vitamin E suppresses ex vivo osteoclastogenesis in ovariectomized rats

2016 ◽  
Vol 7 (3) ◽  
pp. 1628-1633 ◽  
Author(s):  
Sarah A. Johnson ◽  
Rafaela G. Feresin ◽  
Do Y. Soung ◽  
Marcus L. Elam ◽  
Bahram H. Arjmandi
Keyword(s):  
Vitamin E ◽  
Ex Vivo ◽  
Ovariectomized Rats ◽  
Supplemental Vitamin

This study presents the effects of various doses of supplemental vitamin E onex vivoosteoclastogenesis in ovariectomized rats.

Lessons From the E-Ferol Tragedy

PEDIATRICS ◽  
1986 ◽  
Vol 78 (3) ◽  
pp. 503-506
Author(s):  
William F. Balistreri ◽  
Michael K. Farrell ◽  
Kevin E. Bove
Keyword(s):  
Vitamin E ◽  
Placental Transfer ◽  
Serum Vitamin ◽  
Maternal Blood ◽  
Blood Levels ◽  
Antioxidant Vitamin ◽  
Low Birth Weight Infants ◽  
Term Infants ◽  
Naturally Occurring ◽  
Supplemental Vitamin

"Those who cannot remember the past are condemned to repeat it."—G. Sabtatana Several factors combined to suggest that supplemental vitamin E should be administered to low birth weight infants. The persistent concern and controversy, the latter confounded by a paucity of data, have been discussed in recent editorials.1,2 At birh, tissue stores of the naturally occurring lipidsoluble antioxidant vitamin E (α-tocopherol) are low. The amount of total tocopherol in the tissue of premature infants is approximately one half that of full-term infants. 3 Maternal vitamin E supplementation seems to have minimal effect on serum vitamin E levels in the newborn because there is poor placental transfer; maternal blood levels are higher than cord levels.1-3

Bacterial Growth in Ground Beef Patties Made with Meat from Animals Fed Diets without or with Supplemental Vitamin E

1998 ◽  
Vol 61 (1) ◽  
pp. 36-40 ◽  
Author(s):  
LAURA CABEDO ◽  
JOHN N. SOFOS ◽  
GARY C. SMITH
Keyword(s):  
Listeria Monocytogenes ◽  
Vitamin E ◽  
Ground Beef ◽  
Major Effect ◽  
Aerobic Bacteria ◽  
Fluorescent Light ◽  
Bacterial Populations ◽  
High Vitamin ◽  
Beef Patties ◽  
Supplemental Vitamin

A study was designed to determine populations of aerobic bacteria, coliforms, sorbitol-negative bacteria, and Listeria monocytogenes during display at 4 and 12°C of ground beef patties made with meat from animals fed diets supplemented daily (for 100 days) with 0, 1,000, or 2,000 IU of vitamin E. The patties (113.5 g) were either left uninoculated or were inoculated with Escherichia coli O157:H7 or L. monocytogenes and were tray-overwrapped and stored (at 4 or 12°C for 8 to 10 or 4 to 6 days, respectively) while being continuously exposed to fluorescent light in a display setting. Patties were visually evaluated for overall appearance (based on color and/or discoloration) twice a day and analyzed for microbiological counts at 2-day intervals during display at 4°C and at 0, 1, 2, 3, 4, and 6 days during display at 12°C. Use of beef from animals fed supplemental vitamin E (“high-vitamin E beef”) resulted in ground beef patties which, when stored at 4°C, maintained visually acceptable color longer than did patties made from control beef (from animals not fed supplemental vitamin E), but effects on microbial growth were less pronounced. In general, use of high-vitamin E beef versus control beef in patty manufacture had no major effect on populations of aerobic bacteria, coliforms, sorbitol-negative bacteria, or L. monocytogenes in ground beef patties displayed at 4 or 12°C. Listeria monocytogenes multiplied at 12°C, but growth was similar among ground beef patties made from high-vitamin E beef versus control beef. Overall, changes in bacterial populations were similar in ground beef patties derived from meat from animals with or without added vitamin E in their diets, but control ground beef became visually unacceptable sooner.

Effects of supplemental vitamin E in diet of Japanese quail on male reproduction, fertility and hatchability

2007 ◽  
Vol 48 (1) ◽  
pp. 104-110 ◽  
Author(s):  
S. Hooda* ◽  
Praveen K. Tyagi ◽  
J. Mohan ◽  
A.B. Mandal ◽  
A.V. Elangovan ◽  
...  
Keyword(s):  
Vitamin E ◽  
Japanese Quail ◽  
Male Reproduction ◽  
Supplemental Vitamin

Influence of estrogen on individual exercise motivation and bone protection in ovariectomized rats

2018 ◽  
Vol 52 (5) ◽  
pp. 479-489 ◽  
Author(s):  
Sebastian T Müller ◽  
Annekathrin M Keiler ◽  
Kristin Kräker ◽  
Oliver Zierau ◽  
Ricardo Bernhardt
Keyword(s):  
Bone Loss ◽  
Ex Vivo ◽  
Voluntary Exercise ◽  
Ovariectomized Rats ◽  
Protective Effects ◽  
Exercise Motivation ◽  
Running Wheel ◽  
Future Studies ◽  
Bone Protection

Bone protection and metabolism are directly linked to estrogen levels, but exercise is also considered to have bone protective effects. Reduced estrogen levels lead to a variety of disorders, for example, bone loss and reduced movement drive. The objective of this study was to investigate the effects of estrogen on individual voluntary exercise motivation and bone protection. We investigated sham operated, ovariectomized, and ovariectomized with estrogen supplemented Wistar rats (20 weeks old) either with or without access to exercise wheels. We selected an experimental approach where we could monitor the individual exercise of group-housed rats with ad libitum access to a running wheel with the help of a subcutaneous chip. In vivo and ex vivo microcomputed tomography analyses of the tibia were performed at two-week intervals from week 0 to week 6. Furthermore, tibial trabecular structure was evaluated based on histomorphometric analyses. We observed a significant bone protective effect of E2. For exercise performance, a substantially high intra-group variability was observed, especially in the E2 group. We presume that dominant behavior occurs within the group-housed rats resulting in a hierarchical access to the running wheel and a high variability of distance run. Exercise did not prevent ovariectomy-induced bone loss. However, lack of estrogen within the ovariectomized rats led to a drastically reduced activity prevented by estrogen supplementation. Our findings are important for future studies working with group-housed rats and exercise. The reason for the high intra-group variability in exercise needs to be investigated in future studies.

Effects of supplemental vitamin E on performance, health, and humoral immune response of beef cattle

2002 ◽  
Vol 80 (4) ◽  
pp. 933-941 ◽  
Author(s):  
J. D. Rivera ◽  
G. C. Duff ◽  
M. L. Galyean ◽  
D. A. Walker ◽  
G. A. Nunnery
Keyword(s):  
Immune Response ◽  
Vitamin E ◽  
Beef Cattle ◽  
Humoral Immune Response ◽  
Humoral Immune ◽  
Supplemental Vitamin

Effects of supranutritional vitamin E on meat quality in dairy cross steers fed grass silage and concentrates

1996 ◽  
Vol 1996 ◽  
pp. 120-120
Author(s):  
L. Vega ◽  
M. Enser ◽  
R.I. Richardson ◽  
J.D. Wood
Keyword(s):  
Vitamin E ◽  
Meat Quality ◽  
Normal Growth ◽  
Chemical Methods ◽  
Grass Silage ◽  
Brown Discoloration ◽  
Supplemental Vitamin ◽  
Physical And Chemical ◽  
Cooked Meat ◽  
Growth And Reproduction

Vitamin E is the major lipid soluble antioxidant in animals and post mortem it continues to inhibit the oxidation of lipids, which causes rancidity, and the oxidation of myoglobin to metmyoglobin which results in a brown discoloration of the meat. Feeding vitamin E in amounts greater than those needed for normal growth and reproduction of the animal raises the vitamin levels of the tissues and increases the shelf life of meat by delaying the onset of oxidative deterioration (Schaefer et al., 1995). We have investigated the effectiveness of supplemental vitamin E given to beef cattle fed grass silage, since grass and conserved grass contain relatively high levels of endogenous vitamin E. Meat quality was assessed not only by physical and chemical methods but also by taste panel to determine whether high levels of vitamin E affected cooked meat flavour which requires limited lipid oxidation for its development.

Role of supplemental vitamin E in lamb survival and production: A review

2000 ◽  
Vol 77 (E-Suppl) ◽  
pp. 1 ◽  
Author(s):  
P. G. Hatfield ◽  
J. T. Daniels ◽  
R. W. Kott ◽  
D. E. Burgess ◽  
T. J. Evans
Keyword(s):  
Vitamin E ◽  
Supplemental Vitamin ◽  
Lamb Survival
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