Records |
Author |
Douglas Wilson, A. |
Title |
The effects of diet on blood glucose, insulin, gastrin and the serum tryptophan: Large neutral amino acid ratio in foals |
Type |
Journal Article |
Year |
2006 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Vet J |
Volume |
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Issue |
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Pages |
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Keywords |
Diet; Horse; Insulin; Gastrin; Tryptophan |
Abstract |
High carbohydrate diets can affect the health and behaviour of foals, but the mechanisms are not always fully understood. The objective of this study was to compare the effects of feeding a starch and sugar (SS), or a fat (oil) and fibre (FF) rich diet to two groups of eight foals. Diets were fed from 4 to 42 weeks of age, alongside ad libitum forage. Faecal pH levels did not differ significantly between groups and endoscopic examination showed that the gastric mucosa was healthy in both groups at 25 and 42 weeks of age. At 40 weeks of age, SS foals had significantly higher total blood glucose and lower total blood gastrin than FF foals during the 6h period following ingestion of their respective diets, but insulin levels did not differ significantly. The ratio between serum tryptophan and other large neutral amino acids showed a trend towards an interaction between diet and sampling time. The results provide preliminary information about the effects of diet on the physiology of young horses. |
Address |
School of Veterinary Science, University of Bristol, Langford House, Bristol BS40 5DU, UK |
Corporate Author |
Amanda J. Badnell-Watersb, Rachel Biceb, Ailison Kellandb, Pat A. Harrisc and Christine J. Nicol |
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Place of Publication |
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English |
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Original Title |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1090-0233 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:16945560 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
63 |
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Author |
Hothersall, B.; Nicol, C. |
Title |
Role of Diet and Feeding in Normal and Stereotypic Behaviors in Horses |
Type |
Journal Article |
Year |
2009 |
Publication |
Veterinary Clinics of North America: Equine Practice |
Abbreviated Journal |
Clinical Nutrition |
Volume |
25 |
Issue |
1 |
Pages |
167-181 |
Keywords |
Equine behavior; Diet; Crib-biting; Stereotypy; Weaning; Tryptophan; Insulin |
Abstract |
This article reviews the effects of diet on equine feeding behavior and feeding patterns, before considering the evidence that diet affects reactivity in horses. A growing body of work suggests that fat- and fiber-based diets may result in calmer patterns of behavior, and possible mechanisms that may underpin these effects are discussed. In contrast, there is little evidence that herbal- or tryptophan-containing supplements influence equine behavior in any measurable way. The role of diet in the development of abnormal oral behaviors, particularly the oral stereotypy crib-biting, is also reviewed, and suggestions for future work are presented. |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0749-0739 |
ISBN |
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Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4945 |
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Author |
Gavrilova, O.; Haluzik, M.; Matsusue, K.; Cutson, J.J.; Johnson, L.; Dietz, K.R.; Nicol, C.J.; Vinson, C.; Gonzalez, F.J.; Reitman, M.L. |
Title |
Liver peroxisome proliferator-activated receptor gamma contributes to hepatic steatosis, triglyceride clearance, and regulation of body fat mass |
Type |
Journal Article |
Year |
2003 |
Publication |
The Journal of biological chemistry |
Abbreviated Journal |
J Biol Chem |
Volume |
278 |
Issue |
36 |
Pages |
34268-34276 |
Keywords |
Adipose Tissue/*metabolism; Animals; Blotting, Southern; Blotting, Western; Female; Hypoglycemia/genetics; Insulin Resistance/genetics; Lipid Metabolism; Liver/*metabolism; Liver Diseases/genetics/*metabolism; Male; Mice; Mice, Inbred C57BL; Mice, Knockout; Mice, Transgenic; RNA/metabolism; Receptors, Cytoplasmic and Nuclear/*genetics/*physiology; Recombination, Genetic; Thiazoles/pharmacology; *Thiazolidinediones; Time Factors; Transcription Factors/*genetics/*physiology; Triglycerides/*metabolism |
Abstract |
Peroxisome proliferator-activated receptor gamma (PPAR gamma) is a nuclear receptor that mediates the antidiabetic effects of thiazolidinediones. PPAR gamma is present in adipose tissue and becomes elevated in fatty livers, but the roles of specific tissues in thiazolidinedione actions are unclear. We studied the function of liver PPAR gamma in both lipoatrophic A-ZIP/F-1 (AZIP) and wild type mice. In AZIP mice, ablation of liver PPAR gamma reduced the hepatic steatosis but worsened the hyperlipidemia, triglyceride clearance, and muscle insulin resistance. Inactivation of AZIP liver PPAR gamma also abolished the hypoglycemic and hypolipidemic effects of rosiglitazone, demonstrating that, in the absence of adipose tissue, the liver is a primary and major site of thiazolidinedione action. In contrast, rosiglitazone remained effective in non-lipoatrophic mice lacking liver PPAR gamma, suggesting that adipose tissue is the major site of thiazolidinedione action in typical mice with adipose tissue. Interestingly, mice without liver PPAR gamma, but with adipose tissue, developed relative fat intolerance, increased adiposity, hyperlipidemia, and insulin resistance. Thus, liver PPAR gamma regulates triglyceride homeostasis, contributing to hepatic steatosis, but protecting other tissues from triglyceride accumulation and insulin resistance. |
Address |
Diabetes Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA. oksanag@bdg10.niddk.nih.gov |
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English |
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Edition |
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ISSN |
0021-9258 |
ISBN |
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Conference |
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Notes |
PMID:12805374 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
81 |
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Author |
Alexander, F.; Ash, R.W. |
Title |
The effect of emotion and hormones on the concentration of glucose and eosinophils in horse blood |
Type |
Journal Article |
Year |
1955 |
Publication |
The Journal of physiology |
Abbreviated Journal |
J Physiol |
Volume |
130 |
Issue |
3 |
Pages |
703-710 |
Keywords |
Blood Glucose/*drug effects; Eosinophils/*drug effects; Leukocyte Count/*drug effects; *ACTH/effects; *BLOOD SUGAR/effect of drugs on; *EOSINOPHIL COUNT/effect of drugs on; *EPINEPHRINE/effects; *HISTAMINE/effects; *INSULIN/effects; *STRESS/experimental |
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English |
Summary Language |
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Original Title |
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Series Editor |
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ISSN |
0022-3751 |
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Notes |
PMID:13278929 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
122 |
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Author |
Pere, M.C. |
Title |
Maternal and fetal blood levels of glucose, lactate, fructose, and insulin in the conscious pig |
Type |
Journal Article |
Year |
1995 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim Sci. |
Volume |
73 |
Issue |
10 |
Pages |
2994-2999 |
Keywords |
Animals; Blood Glucose/*analysis; Catheterization/methods/veterinary; Consciousness/physiology; Female; Fetal Blood/*chemistry; Fructose/analysis/*blood; Insulin/analysis/*blood; Lactates/analysis/*blood; Pregnancy; Swine/*blood/physiology |
Abstract |
To study nutrition and metabolism in the fetal pig, a chronic catheterization method was developed that allows blood sampling in arteries and veins, at both the umbilical and uterine sources, in the conscious, unstressed animal. A catheter was inserted in the fetal aorta through a femoral artery, and another one was introduced in the umbilical vein. A catheter was put in a femoral artery of the sow so that its end was in the abdominal aorta. A fourth catheter was placed in a uterine vein draining the fetoplacental unit studied. This procedure was applied to 18 Large White primiparous sows at 99 d of gestation. Blood samples were drawn simultaneously using the four catheters before a meal at 103 d of pregnancy, and glucose, insulin, lactate, and fructose were determinated. Glycemia was 2.5 times higher in the sow than in the fetus. The extraction coefficient of glucose by the fetus amounted to 14% of the umbilical supply. The insulin level in the fetal pig was very low ( < 5 microU/mL). Lactate and fructose seemed to originate from the placenta. Blood lactate was 2.6 times lower in the sow than in the fetus, and its extraction coefficient by the fetus amounted to 8%. Fructose in the fetal blood was 2.3 times higher than that of glucose. Fructose was not utilized by the pig fetus. The present results obtained in the fetal pig are comparable to the conclusions drawn from studies with other species. |
Address |
Station de Recherches Porcines, Institut National de la Recherche Agronomique, Saint-Gilles, France |
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English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0021-8812 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:8617670 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2751 |
Permanent link to this record |