Search Results - "Gerrard, D.E."

Mechanisms controlling pork quality development: The biochemistry controlling postmortem energy metabolism by Scheffler, T.L., Gerrard, D.E.

“…Pale, soft and exudative (PSE) pork represents considerable economic losses for the industry due to its limited functionality and undesirable appearance…”
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AMPK activity is regulated by calcium-mediated protein phosphatase 2A activity by Park, S, Scheffler, T.L, Rossie, S.S, Gerrard, D.E

“…Abstract AMP-activated protein kinase (AMPK) is activated by upstream kinases and negatively regulated by protein phosphatases. Intracellular calcium mediates…”
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Effects of AMP-activated protein kinase (AMPK) signaling and essential amino acids on mammalian target of rapamycin (mTOR) signaling and protein synthesis rates in mammary cells by Appuhamy, J A D R N, Nayananjalie, W A, England, E M, Gerrard, D E, Akers, R M, Hanigan, M D

“…Regulation of mammary protein synthesis potentially changes the relationships between AA supply and milk protein output represented in current nutrient…”
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Chronic high cytosolic calcium decreases AICAR-induced AMPK activity via calcium/calmodulin activated protein kinase II signaling cascade by Park, S, Scheffler, T.L, Gerrard, D.E

“…Abstract Calcium is important for muscle contraction and controls many cellular processes. Although there is evidence that calcium-mediated signals regulate…”
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Imaging optical diffuse reflectance in beef muscles for tenderness prediction by Ranasinghesagara, J., Nath, T.M., Wells, S.J., Weaver, A.D., Gerrard, D.E., Yao, G.

“…The objective of this study was to investigate the potential of a novel optical reflectance imaging method to predict beef tenderness. Two-dimensional (2D)…”
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Augmented postmortem glycolysis does not occur early postmortem in AMPKγ3-mutated porcine muscle of halothane positive pigs by Copenhafer, T.L., Richert, B.T., Schinckel, A.P., Grant, A.L., Gerrard, D.E.

“…The objective of this study was to determine the effects of the halothane (HAL) and Rendement Napole (RN) genes on the rate-limiting reactions of glycolysis…”
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Myosin heavy chain isoforms account for variation in pork quality by Eggert, J.M., Depreux, F.F.S., Schinckel, A.P., Grant, A.L., Gerrard, D.E.

“…The objective of this study was to determine the impact of myosin heavy chain (MyHC) isoforms (I, IIB, IIA and IIX) on pork quality traits of halothane…”
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Beef Marbling and Color Score Determination by Image Processing by GERRARD, D.E., GAO, X., TAN, J.

“…ABSTRACT Sixty steaks with various degrees of marbling and color were subjected to sensory evaluation and image processing. Marbling and color scores were…”
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Myosin heavy chain isoform composition influences the susceptibility of actin-activated S1 ATPase and myofibrillar ATPase to pH inactivation by Bowker, B.C., Swartz, D.R., Grant, A.L., Gerrard, D.E.

“…The objectives of this study were to determine the influence of pH and MyHC isoforms on myofibrillar and actin-activated myosin subfragment 1 (S1) ATPase…”
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Evidence for three adult fast myosin heavy chain isoforms in type II skeletal muscle fibers in pigs by Lefaucheur, L. (INRA, St-Gilles, France.), Hoffman, R.K, Gerrard, D.E, Okamura, C.S, Rubinstein, N, Kelly, A

“…Three main fiber types one slow [type I] and two fast [type IIA and IIB] can be distinguished using conventional actomyosin ATPase (AM-ATPase) histochemistry…”
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In vitro proteolysis mirrors intact muscle maturation in beef carcasses by Bodmer, J.S., Beline, M., Yen, C.N., Wicks, J.C., Amorim, S.T., Roth, E.C., Biase, F.H., Koohmaraie, M., Matarneh, S., Shi, T.H., Silva, S.L., Gerrard, D.E.

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Pork Quality is Affected by Early Postmortem Phosphate and Bicarbonate Injection by Wynveen, E.J., Bowker, B.C., Grant, A.L., Lamkey, J.W., Fennewald, K.J., Henson, L., Gerrard, D.E.

“…The ability of sodium polyphosphate (P) to alter postmortem pH declines and pork quality was investigated. Hams from electrically stimulated carcasses were…”
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Method of isolation, rate of postmortem metabolism, and myosin heavy chain isoform composition influence ATPase activity of isolated porcine myofibrils by Bowker, B.C., Swartz, D.R., Grant, A.L., Gerrard, D.E.

“…The objective of this study was to determine the influence of myofibril isolation procedures and myosin heavy chain (MyHC) isoform composition on myofibrillar…”
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Exogenous somatotropin alters IGF axis in porcine endometrium and placenta by Freese, L.G., Rehfeldt, C., Fuerbass, R., Kuhn, G., Okamura, C.S., Ender, K., Grant, A.L., Gerrard, D.E.

“…The aim of this study was to examine whether exogenous somatotropin (ST) can alter the insulin-like growth factor (IGF) axis in the porcine epitheliochorial…”
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Muscle from grass- and grain-fed cattle differs energetically by Apaoblaza, A., Gerrard, S.D., Matarneh, S.K., Wicks, J.C., Kirkpatrick, L., England, E.M., Scheffler, T.L., Duckett, S.K., Shi, H., Silva, S.L., Grant, A.L., Gerrard, D.E.

“…Insufficient acidification results in dark, firm, and dry beef. While this defect is often indicative of a stress event antemortem, muscle tissue may change in…”
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Administration of recombinant porcine somatotropin (rpST) changes hormone and metabolic status during early pregnancy by Schneider, F, Kanitz, E, Gerrard, D.E, Kuhn, G, Brüssow, K.P, Nürnberg, K, Fiedler, I, Nürnberg, G, Ender, K, Rehfeldt, C

“…The objective of this study was to examine the effects of somatotropin (ST) on porcine reproductive and metabolic statuses during early pregnancy. Four…”
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Ractopamine does not rescue Halothane and Rendement Napole metabolism postmortem by Guo, Q., Yen, C.-N., Scheffler, T.L., Richert, B.T., Schinckel, A.P., Grant, A.L., Gerrard, D.E.

“…The objective of this study was to determine if ractopamine (RAC) impacts postmortem muscle metabolism and subsequent pork quality in Halothane (HAL) and…”
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Exploring the unknowns involved in the transformation of muscle to meat by England, E.M., Scheffler, T.L., Kasten, S.C., Matarneh, S.K., Gerrard, D.E.

“…Meat quality development, or the transformation of muscle to meat, involves a myriad of biochemical pathways that are largely well-studied in living muscle…”
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Time of dehairing alters pork quality development by Wicks, J.C., Zumbaugh, M.D., Daniels, R.P., Matarneh, S.K., Venhuizen, M.D., Elgin, J., Bodmer, J., Yen, C.-N., Beline, M., Shi, H., Silva, S.L., Gerrard, D.E.

“…Studies investigating the effect of scald time on pork quality are confounded with time of dehairing. To understand better pork quality development and…”
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Muscle of dark and normal beef differs metabolically by Kirkpatrick, L.T., Gómez, J.F.M., Beline, M., Yen, C.-N., Bodmer, J.S., Wicks, J.C., Shi, T.H., Silva, S.L., Aalhus, J.L., King, D.A., Gerrard, D.E.

“…Reduction in muscle glycogen triggered by adverse antemortem handling events alters postmortem energy metabolism and results in a high ultimate pH and dark,…”
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