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Topic:Biochemistry
The study of biochemistry in horses encompasses the chemical processes and substances that occur within equine organisms. This field investigates the molecular interactions and pathways that are fundamental to horse physiology, including metabolism, enzyme activity, and genetic expression. Key areas of interest include the examination of metabolic disorders, nutrient absorption, and the biochemical basis of muscle function and energy production. Researchers utilize biochemical analysis to understand health and disease mechanisms in horses, contributing to the development of diagnostic tools and therapeutic strategies. This page gathers peer-reviewed studies and scholarly articles that explore various biochemical processes and their implications for equine health and performance.
The organ-specificity of ferritin in human and horse liver and spleen. 1. Ferritin was isolated from human and horse spleen and liver, and apoferritin prepared therefrom. 2. The electrophoretic mobilities of the four apoferritins were determined on polyacrylamide gels and on cellulose acetate strips, and all found to be equal. 3. Homologous ferritins share reactions of identity in immunodiffusion experiments, whereas heterologous ferritins show only partial identity. 4. The subunit molecular weight of each of the apoferritins was determined by polyacrylamide-gel electrophoresis in sodium dodecyl sulphate and by chromatography on agarose columns in 6m-guanidine-HC...
Equilibria of organic phosphates with horse oxyhemoglobin. Organic phosphates, ATP, AMP, and 2,3-di-phosphoglycerate (DPG) were interacted with horse oxyhemo-globin. Binding parameters were obtained by means of dialysis equilibrium in buffers at 5°, and from calorimetry at 5 and 25°, all in the pH mom 6.5-7.3. The calorimetric results were evaluated assuming a single strong site, and assuming that the pH shifts which occur in the absence of added salt are due to electrostatic effects and not to changes in side-chain titration, upon mixing samples previously ad-justed to the same pH. There was obtained for ATP and 2,3- diphosphoglycerate. respectivel...
Cultural characteristics of a cell line derived from an equine sarcoid. A cell line, derived from a spontaneous equine connective tissue tumor (equine sarcoid), has been established. The morphological and growth characteristics indicative of malignant transformation of the cells include a disoriented, rapid growth and loss of contact inhibition. Further evidence of transformation is the agglutination of these cells by concanavalin A and their ability to divide in semisolid media.
Glutathione reduction and other enzyme activities in equine erythrocytes. 1. Reduced glutathione regeneration rates as measured in erythro- cytes of ten horses were considerably lower than rates reported in human and sheep erythrocytes.
2. Theactivityofenzymesinvolvedinreducedglutathioneregenerationwas at least three times the observed reduction rate.
3. Despitehighglucose-6-phosphatedehydrogenaseactivity,equineerythro- cytes could not adequately accelerate the hexose monophosphate pathway.
4. Activities of enzymes involved in regulating the glycolytie pathway were less than 5/~moles/min per g hemoglobin; of other glycolytic enzymes greater than 10/~moles/min per...
Identification and quantitation of equine serum and secretory immunoglobulin A. Immunoglobulin A (IgA) was demonstrated in equine serum and secretions. This immunoglobulin had a molecular weight extending from 150,000 to 700,000 and reacted with specific antihuman alpha-chain antiserum. Antigenic determinants specific for secretory IgA were demonstrated and found to be absent on serum IgA. Antigen binding activity was detected in IgA from tears. Purified IgA was antigenically distinct from equine IgG, IgM, IgG(T), and aggregating immunoglobulin. Quantitative studies demonstrated that IgA was the predominant immunoglobulin in tears and milk but not in colostrum. The electr...
