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| Charles LangSummaryAffiliation: Pennsylvania State University Country: USA Publications
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Publications
Alcohol and indinavir adversely affect protein synthesis and phosphorylation of MAPK and mTOR signaling pathways in C2C12 myocytesLy Q Hong-Brown
Department of Cellular and Molecular Physiology H166, Penn State University College of Medicine, Hershey, Pennsylvania 17033, USA
Alcohol Clin Exp Res 30:1297-307. 2006..The goal of the present study was to identify signaling mechanisms responsible for the inhibitory effect of ethanol (EtOH) and Ind on protein synthesis...
Direct central nervous system effect of alcohol alters synthesis and degradation of skeletal muscle proteinAnne M Pruznak
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey, PA 17033, USA
Alcohol Alcohol 48:138-45. 2013..However, alcohol in the general circulation diffuses rapidly into the central nervous system (CNS). Therefore, this study determined whether localized elevation of alcohol within the CNS is capable of decreasing muscle protein synthesis...
Differential effect of sepsis on ability of leucine and IGF-I to stimulate muscle translation initiationCharles H Lang
Department of Cellular and Molecular Physiology, H166, Pennsylvania State University College of Medicine, 500 University Dr, Hershey 17033, USA
Am J Physiol Endocrinol Metab 287:E721-30. 2004..Hence, sepsis produces a relatively specific Leu resistance in skeletal muscle that impairs the ability of this amino acid to stimulate translation initiation and protein synthesis...
Sepsis and inflammatory insults downregulate IGFBP-5, but not IGFBP-4, in skeletal muscle via a TNF-dependent mechanismCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey, PA 17033, USA
Am J Physiol Regul Integr Comp Physiol 290:R963-72. 2006..Finally, IGF-I appears to be a dominant positive regulator of IGFBP-5 gene expression in muscle under both normal and catabolic conditions...
Elevated plasma free fatty acids decrease basal protein synthesis, but not the anabolic effect of leucine, in skeletal muscleCharles H Lang
Dept of Cellular Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA, USA
Am J Physiol Endocrinol Metab 291:E666-74. 2006..Moreover, hyperlipidemia impairs IGF-I action but does not produce leucine resistance in skeletal muscle...
Burn-induced increase in atrogin-1 and MuRF-1 in skeletal muscle is glucocorticoid independent but downregulated by IGF-ICharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Am J Physiol Regul Integr Comp Physiol 292:R328-36. 2007..In summary, the acute muscle wasting accompanying thermal injury is associated with a glucocorticoid-independent increase in the expression of several Ub E3 ligases that can be downregulated by IGF-I...
Role of growth hormone, insulin-like growth factor-I, and insulin-like growth factor binding proteins in the catabolic response to injury and infectionCharles H Lang
Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania 17033, USA
Curr Opin Clin Nutr Metab Care 5:271-9. 2002..This review focuses on recent developments pertaining to the importance of alterations in the growth hormone-insulin-like growth factor-I axis as a mechanism for the observed defects in muscle protein balance...
Skeletal muscle protein synthesis and degradation exhibit sexual dimorphism after chronic alcohol consumption but not acute intoxicationCharles H Lang
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, PA 17033, USA
Am J Physiol Endocrinol Metab 292:E1497-506. 2007....
Glucocorticoids and TNFalpha interact cooperatively to mediate sepsis-induced leucine resistance in skeletal muscleCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Mol Med 12:291-9. 2006..Our data demonstrate the sepsis-induced leucine resistance in skeletal muscle results from the cooperative interaction of both TNFalpha and glucocorticoids...
TNF-alpha impairs heart and skeletal muscle protein synthesis by altering translation initiationCharles H Lang
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 282:E336-47. 2002....
Molecular mechanisms responsible for alcohol-induced myopathy in skeletal muscle and heartCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Int J Biochem Cell Biol 37:2180-95. 2005..Overall, the biochemical mechanisms contributing to the pathogenesis of loss of skeletal and cardiac muscle are reviewed...
Cytokine inhibition of JAK-STAT signaling: a new mechanism of growth hormone resistanceCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
Pediatr Nephrol 20:306-12. 2005..Collectively, these changes act to limit IGF-I availability in muscle, which disturbs protein balance and results in the loss of protein stores in catabolic and inflammatory conditions...
IGF-I/IGFBP-3 ameliorates alterations in protein synthesis, eIF4E availability, and myostatin in alcohol-fed ratsCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 286:E916-26. 2004..The data support the role of IGF-I as a mediator of chronic alcohol myopathy in rats...
Leucine acutely reverses burn-induced alterations in translation initiation in heartCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Shock 22:326-32. 2004..These data suggest that oral administration of leucine can acutely reverse multiple defects in cardiac translation initiation produced by thermal injury...
Thermal injury impairs cardiac protein synthesis and is associated with alterations in translation initiationCharles H Lang
Department of Cellular and Molecular Physiology H166, Penn State College of Medicine, Hershey, PA 17033, USA
Am J Physiol Regul Integr Comp Physiol 286:R740-50. 2004....
Alcohol impairs leucine-mediated phosphorylation of 4E-BP1, S6K1, eIF4G, and mTOR in skeletal muscleCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 285:E1205-15. 2003..Hence, ethanol produces a leucine resistance in skeletal muscle, as evidenced by the impaired phosphorylation of 4E-BP1, eIF4G, S6K1, and mTOR, that is independent of elevations in endogenous glucocorticoids...
Acute in vivo elevation of insulin-like growth factor (IGF) binding protein-1 decreases plasma free IGF-I and muscle protein synthesisCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Endocrinology 144:3922-33. 2003..Hence, elevations in circulating and tissue levels of IGFBP-1 may be an important mediator for the muscle catabolism observed in various stress conditions...
Endotoxin disrupts the leucine-signaling pathway involving phosphorylation of mTOR, 4E-BP1, and S6K1 in skeletal muscleCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
J Cell Physiol 203:144-55. 2005..Hence, LPS working via a glucocorticoid-independent mechanism produces a leucine resistance in skeletal muscle that might be expected to impair the ability of this amino acid to stimulate translation initiation and protein synthesis...
TNFalpha mediates sepsis-induced impairment of basal and leucine-stimulated signaling via S6K1 and eIF4E in cardiac muscleCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
J Cell Biochem 94:419-31. 2005..Finally, TNFalpha, either directly or indirectly, appears to mediate the sepsis-induced defects in myocardial translation initiation...
Alcohol intoxication impairs phosphorylation of S6K1 and S6 in skeletal muscle independently of ethanol metabolismCharles H Lang
Pennsylvania State College of Medicine, Department of Cellular and Molecular Physiology H166, Hershey, PA 17033, USA
Alcohol Clin Exp Res 28:1758-67. 2004....
Burn-induced changes in IGF-I and IGF-binding proteins are partially glucocorticoid dependentCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Regul Integr Comp Physiol 282:R207-15. 2002..TNFBP failed to completely ameliorate any of the burn-induced changes in the IGF system. These results demonstrate that glucocorticoids, but not TNF, mediate many but not all of the burn-induced changes in the IGF system...
Regulation of muscle protein synthesis during sepsis and inflammationCharles H Lang
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 293:E453-9. 2007....
Role of central IL-1 in regulating peripheral IGF-I during endotoxemia and sepsisC H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey 17033, USA
Am J Physiol 274:R956-62. 1998....
BCATm deficiency ameliorates endotoxin-induced decrease in muscle protein synthesis and improves survival in septic miceCharles H Lang
Department of Cellular and Molecular Physiology, and Surgery, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
Am J Physiol Regul Integr Comp Physiol 299:R935-44. 2010....
Skeletal muscle protein balance in mTOR heterozygous mice in response to inflammation and leucineCharles H Lang
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 298:E1283-94. 2010..These data support the idea that the LPS-induced reduction in mTOR activity is relatively more important in regulating skeletal muscle mass in response to nutrient stimulation than under basal conditions...
Alcohol-induced IGF-I resistance is ameliorated in mice deficient for mitochondrial branched-chain aminotransferaseCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
J Nutr 140:932-8. 2010..These data suggest that whereas the sustained elevation in plasma BCAA is not sufficient to ameliorate the catabolic effect of acute alcohol intoxication on muscle protein synthesis, it does improve the anabolic effect of IGF-I...
Castration differentially alters basal and leucine-stimulated tissue protein synthesis in skeletal muscle and adipose tissueQianning Jiao
Cell and Molecular Physiology H166 Penn State College of Medicine, Hershey, PA 17033 0850, USA
Am J Physiol Endocrinol Metab 297:E1222-32. 2009....
Chronic alcohol feeding impairs hepatic translation initiation by modulating eIF2 and eIF4EC H Lang
Department of Cellular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol 277:E805-14. 1999..In summary, these data suggest that chronic alcohol consumption impairs translation initiation in liver by altering eIF2B activity as well as eIF4F function via changes in eIF4E availability...
Impaired protein synthesis induced by acute alcohol intoxication is associated with changes in eIF4E in muscle and eIF2B in liverC H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey 17033 0850, USA
Alcohol Clin Exp Res 24:322-31. 2000..Acute alcohol intoxication in rats decreases protein synthesis in skeletal muscle and, to a lesser extent, in liver. The purpose of the present study was to examine potential mechanisms for the inhibitory effect of acute ethanol exposure...
Acute response of IGF-I and IGF binding proteins induced by thermal injuryC H Lang
Departments of Cellular and Molecular Physiology, and Surgery, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033 0850, USA
Am J Physiol Endocrinol Metab 278:E1087-96. 2000..These results characterize burn-induced changes in various components of the IGF system in select tissues and thereby provide potential mechanisms for alterations in the circulating IGF system and for changes in tissue metabolism...
Endotoxin-induced decrease in muscle protein synthesis is associated with changes in eIF2B, eIF4E, and IGF-IC H Lang
Departments of Cellular and Molecular Physiology, and Surgery, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 278:E1133-43. 2000....
Beta-adrenergic blockade exacerbates sepsis-induced changes in tumor necrosis factor alpha and interleukin-6 in skeletal muscle and is associated with impaired translation initiationCharles H Lang
Departments of Cellular and Molecular Physiology, Pennsylvania State University, College of Medicine, Hershey, PA, USA
J Trauma 64:477-86. 2008....
Tissue-specific regulation of IGF-I and IGF-binding proteins in response to TNFalphaC H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033 0850, USA
Growth Horm IGF Res 11:250-60. 2001....
Acute alcohol intoxication increases REDD1 in skeletal muscleCharles H Lang
Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, Pennsylvania 17033, USA
Alcohol Clin Exp Res 32:796-805. 2008..In this regard, mTOR activity is impaired after over expression of the regulatory protein REDD1. Hence, the present study assessed the ability of REDD1 as a potential mediator of the EtOH-induced decrease in muscle protein synthesis...
Alcohol-induced decrease in muscle protein synthesis associated with increased binding of mTOR and raptor: Comparable effects in young and mature ratsCharles H Lang
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Nutr Metab (Lond) 6:4. 2009..abstract:..
Alcohol myopathy: impairment of protein synthesis and translation initiationC H Lang
Department of Cellular and Molecular Physiology H166, Penn State College of Medicine, Hershey, PA 17033, USA
Int J Biochem Cell Biol 33:457-73. 2001..However, defects in the availability or effectiveness of various anabolic hormones, particularly insulin-like growth factor-I, are consistent with the alcohol-induced decrease in protein synthesis and translation initiation...
Impaired myocardial protein synthesis induced by acute alcohol intoxication is associated with changes in eIF4FC H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 279:E1029-38. 2000....
Sepsis-induced suppression of skeletal muscle translation initiation mediated by tumor necrosis factor alphaCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Metabolism 56:49-57. 2007..Hence, the decreased constitutive protein synthesis observed in fast-twitch skeletal muscle in response to peritonitis is mediated by a TNF-dependent mechanism affecting mTOR regulation of translation initiation...
Inhibition of muscle protein synthesis by alcohol is associated with modulation of eIF2B and eIF4EC H Lang
Departments of Cellular and Molecular Physiology and Surgery, Pennsylvania State College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol 277:E268-76. 1999..In summary, these data suggest that chronic alcohol consumption impairs translation initiation in muscle by altering multiple regulatory sites, including eIF2B activity and eIF4E availability...
Immunization against IGF-I prevents increases in protein synthesis in diabetic rats after resistance exerciseM J Fedele
Noll Physiological Research Center, Pennsylvania State University, University Park, PA 16802, USA
Am J Physiol Endocrinol Metab 280:E877-85. 2001..01), but not nondiabetic, rats. These results suggest that IGF-I is compensatory for insulin in hypoinsulinemic rats by facilitating an anabolic response after acute resistance exercise...
Stimulation of insulin-like growth factor binding protein-1 synthesis by interleukin-1beta: requirement of the mitogen-activated protein kinase pathwayR A Frost
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey 17033, USA
Endocrinology 141:3156-64. 2000..Our data demonstrate that the MAP kinase signal transduction pathway plays an important role in the regulation of IGFBP-1 synthesis by IL-1beta...
Alteration of somatotropic function by proinflammatory cytokinesR A Frost
Department of Cellular and Molecular Physiology, The Pennsylvania State University, College of Medicine, Hershey 17033, USA
J Anim Sci 82:E100-109. 2004..Current work is focused on deciphering the mechanism by which muscle becomes GH resistant and the development of therapies to maintain muscle protein stores during infection...
Regulation of muscle growth by pathogen-associated moleculesR A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
J Anim Sci 86:E84-93. 2008..The interplay between inflammatory components and growth factor signaling clearly places muscle at the interface between growth and immunity...
Effects of chronic alcohol consumption on regulation of myocardial protein synthesisT C Vary
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Heart Circ Physiol 281:H1242-51. 2001..These data suggest that a chronic alcohol-induced impairment in myocardial protein synthesis results in part from inhibition in peptide chain initiation secondary to marked changes in eIF4E availability and p70(S6K) phosphorylation...
Alcohol impairs protein synthesis and degradation in cultured skeletal muscle cellsL Q Hong-Brown
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey, Pennsylvania 17033, USA
Alcohol Clin Exp Res 25:1373-82. 2001..We investigated whether ethanol (EtOH) and its major metabolites, acetaldehyde and acetate, can directly modulate protein balance under in vitro conditions...
Regulation of insulin-like growth factor-I in skeletal muscle and muscle cellsR A Frost
Department of Cellular and Molecular Physiology, College of Medicine, Pennsylvania State University Hershey, PA 17033, USA
Minerva Endocrinol 28:53-73. 2003..A special emphasis will be placed on the interaction of IGF-I and proinflammatory cytokines in skeletal muscle and muscle cells...
Acute alterations in growth hormone-insulin-like growth factor axis in humans injected with endotoxinC H Lang
Department of Surgery, State University of New York at Stony Brook 11794 8191, USA
Am J Physiol 273:R371-8. 1997..These data indicate that the acute changes in the GH-IGF axis in humans in response to LPS are comparable with those observed in humans in other traumatic conditions and in animal models of endotoxemia and infection...
In vitro and In vivo inhibition of LPS-stimulated tumor necrosis factor-alpha secretion by the gallotannin beta-D-pentagalloylglucoseK S Feldman
Department of Chemistry, The Pennsylvania State University, University Park, 16802, PA, USA
Bioorg Med Chem Lett 11:1813-5. 2001..These results may have relevance to therapies that target disease states characterized by an overproduction of TNF-alpha...
Hypertrophy of skeletal muscle in diabetic rats in response to chronic resistance exerciseP A Farrell
Noll Physiological Research Center and Department of Kinesiology, University Park, Pennsylvania 16802, USA
J Appl Physiol 87:1075-82. 1999..These data demonstrate that, despite lower circulating insulin concentrations, diabetic rats can increase muscle mass in response to a physiological stimulus...
Differential effects of insulin-like growth factor I (IGF-I) and IGF-binding protein-1 on protein metabolism in human skeletal muscle cellsR A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey 17033, USA
Endocrinology 140:3962-70. 1999..BP-1, acting independently of IGF-I, inhibits protein degradation. The IGF-independent response occurs via beta1 integrin binding and stimulation of a rapamycin-sensitive signal transduction pathway...
Tissue-specific effects of in vivo adenosine receptor blockade on glucose uptake in Zucker ratsG H Crist
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033 0850
FASEB J 12:1301-8. 1998..This study suggests that insulin resistance in obese Zucker rats is tissue specific and that signaling from adenosine receptors may be a factor contributing to tissue-specific insulin resistance...
Regulation of protein synthesis after acute resistance exercise in diabetic ratsP A Farrell
Noll Physiological Research Center and Department of Kinesiology, University Park 16802 and Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol 276:E721-7. 1999..This preserved response may be due to a compensatory increase in muscle IGF-I content and a maintained ability to activate eIF2B...
Alcohol-induced disruption of endocrine signalingMartin J J Ronis
Arkansas Children s Nutrition Center, Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202, USA
Alcohol Clin Exp Res 31:1269-85. 2007..Lang; (5) The role of reduced plasma estradiol and impaired estrogen signaling in alcohol-induced bone loss, by Martin J. Ronis; and (6) Short-term influence of alcohol on appetite-regulating hormones in man, by Jan Calissendorff...
In vitro and in vivo inhibition of LPS-induced tumor necrosis factor-alpha production by dimeric gallotannin analoguesKen S Feldman
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
Bioorg Med Chem 10:47-55. 2002....
Regulation of IGF-I mRNA and signal transducers and activators of transcription-3 and -5 (Stat-3 and -5) by GH in C2C12 myoblastsRobert A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Endocrinology 143:492-503. 2002..In addition, C2C12 cells appear to be a good model system to examine GH regulation of Janus kinase/Stat signaling and the regulation of IGF-I mRNA...
Protein kinase B/Akt: a nexus of growth factor and cytokine signaling in determining muscle massRobert A Frost
Department of Cellular and Molecular Physiology, The Penn State University College of Medicine, Hershey, PA 17033, USA
J Appl Physiol 103:378-87. 2007..Activation of Akt stimulates muscle hypertrophy and antagonizes the loss of muscle protein. Here we review the many signals that funnel through Akt to alter muscle mass...
Orally administered leucine enhances protein synthesis in skeletal muscle of diabetic rats in the absence of increases in 4E-BP1 or S6K1 phosphorylationJoshua C Anthony
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Diabetes 51:928-36. 2002..The insulin-dependent mechanism is associated with increased phosphorylation of 4E-BP1 and S6K1. In contrast, the insulin-independent effect on protein synthesis is mediated by an unknown mechanism...
AMP-activated protein kinase agonists increase mRNA content of the muscle-specific ubiquitin ligases MAFbx and MuRF1 in C2C12 cellsBrian J Krawiec
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, 500 Univ Drive, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 292:E1555-67. 2007....
Chronic alcohol accentuates simian acquired immunodeficiency syndrome-associated wastingPatricia E Molina
LSUHSC Department of Physiology and Alcohol Research Center, New Orleans, Louisiana 70112, USA
Alcohol Clin Exp Res 32:138-47. 2008..We hypothesized that alcohol-induced loss in lean body mass is likely to exacerbate the AIDS wasting syndrome, particularly at the terminal stage of AIDS (SAIDS)...
Alcohol accelerates loss of muscle and impairs recovery of muscle mass resulting from disuse atrophyRoberto Vargas
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Alcohol Clin Exp Res 32:128-37. 2008..Therefore, the present study addressed the hypothesis that EtOH accelerates the disuse atrophy and/or impairs the accretion of muscle protein during muscle recovery...
Molecular and cellular events in alcohol-induced muscle diseaseJoaquim Fernández-Solà
Alcohol Unit, Hospital Clinic, University of Barcelona, Spain
Alcohol Clin Exp Res 31:1953-62. 2007..Finally, ethanol induces skeletal muscle apoptosis and increases both pro- and antiapoptotic regulatory mechanisms...
Lipopolysaccharide and proinflammatory cytokines stimulate interleukin-6 expression in C2C12 myoblasts: role of the Jun NH2-terminal kinaseRobert A Frost
Dept of Cellular and Molecular Physiology, Penn State Univ College of Medicine, Hershey Medical Center H166, Hershey, PA 17033, USA
Am J Physiol Regul Integr Comp Physiol 285:R1153-64. 2003..Yet, only SP-600125 and not MG-132 blocked LPS-induced IL-6 mRNA expression. This suggests that IL-6 gene expression is a downstream target of JNK in C2C12 myoblasts...
Skeletal and cardiac myopathy in HIV-1 transgenic ratsAnne M Pruznak
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 295:E964-73. 2008..Hence, HIV-1 Tg rats develop atrophy of cardiac and skeletal muscle, the latter of which results primarily from an increased protein degradation and may be related to the marked reduction in muscle insulin-like growth factor I...
CCK-induced pancreatic growth is not limited by mitogenic capacity in miceStephen J Crozier
Department of Molecular and Integrative Physiology, The University of Michigan Medical School, Ann Arbor, MI 48109, USA
Am J Physiol Gastrointest Liver Physiol 294:G1148-57. 2008..These results indicate that CCK-stimulated growth of the pancreas is not limited by acinar cell mitogenic capacity but is due, at least in part, to inhibition of promitogenic Akt signaling...
Acute alcohol intoxication increases atrogin-1 and MuRF1 mRNA without increasing proteolysis in skeletal muscleThomas C Vary
Department of Cellular and Molecular Physiology H166, Penn State College Medicine, 500 University Dr, Hershey, PA 17033, USA
Am J Physiol Regul Integr Comp Physiol 294:R1777-89. 2008..Therefore, the loss of muscle mass/protein in response to chronic alcohol abuse appears to result primarily from a decrement in muscle protein synthesis, not an increase in degradation...
Nuclear factor kappaB mediates the inhibitory effects of interleukin-1 on growth hormone-inducible gene expressionMark D Buzzelli
Departments of Surgery, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
J Trauma 64:1427-35; discussion 1435-6. 2008..The current study examines the role of the nuclear factor kappaB (NFkappaB) pathway and suppressor of cytokine signaling (SOCS)-3 expression as potential mechanisms for IL-1-mediated GH resistance...
Diminished ERK 1/2 and p38 MAPK phosphorylation in skeletal muscle during sepsisThomas C Vary
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Shock 22:548-54. 2004....
Contribution of insulin to the translational control of protein synthesis in skeletal muscle by leucineJoshua C Anthony
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 282:E1092-101. 2002..In contrast, assembly of the mRNA cap-binding complex occurs independently of increases in insulin and, by itself, is insufficient to stimulate rates of protein synthesis in skeletal muscle after leucine administration...
Chronic alcohol accentuates nutritional, metabolic, and immune alterations during asymptomatic simian immunodeficiency virus infectionPatricia E Molina
Department of Physiology, LSUHSC, New Orleans, Louisiana 70112, USA
Alcohol Clin Exp Res 30:2065-78. 2006..HIV infection has become a more chronic disease during which alcohol-induced metabolic alterations may become more prevalent and pronounced...
Differential effects of alcohol consumption on eukaryotic elongation factors in heart, skeletal muscle, and liverThomas C Vary
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey 17033, USA
Alcohol Clin Exp Res 26:1794-802. 2002....
Indinavir alters regulators of protein anabolism and catabolism in skeletal muscleLy Q Hong-Brown
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 289:E382-90. 2005..In conclusion, indinavir acutely impairs basal protein synthesis and translation initiation in skeletal muscle but, in contrast to muscle glucose uptake, does not impair insulin-stimulated signaling of protein synthetic pathways...
Skeletal muscle cytokines: regulation by pathogen-associated molecules and catabolic hormonesRobert A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, 17033, USA
Curr Opin Clin Nutr Metab Care 8:255-63. 2005..A special emphasis is placed on recent studies that examine the interaction of insulin-like growth factor 1 and proinflammatory cytokines as positive and negative regulators of muscle mass...
Sepsis-induced muscle growth hormone resistance occurs independently of STAT5 phosphorylationLy Q Hong-Brown
Department of Cellular and Molecular Physiology, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 285:E63-72. 2003..In conclusion, sepsis produces GH resistance in both muscle and liver, with the locus of this impairment in muscle differing from that in liver and being independent of a defect in STAT5 phosphorylation...
IGF-I induced phosphorylation of S6K1 and 4E-BP1 in heart is impaired by acute alcohol intoxicationCharles H Lang
Prevention Research Center, 2150 Shattuck Avenue, Suite 900, Berkeley, CA 94704, USA
Alcohol Clin Exp Res 27:485-94. 2003..The purpose of the present study was to determine whether acute alcohol (EtOH) intoxication impairs the signal transduction pathway used to coordinate insulin-like growth factor (IGF)-I stimulation of myocardial protein synthesis...
Endotoxin stimulates in vivo expression of inflammatory cytokines tumor necrosis factor alpha, interleukin-1beta, -6, and high-mobility-group protein-1 in skeletal muscleCharles H Lang
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey, Pennsylvania 17033, USA
Shock 19:538-46. 2003..Collectively these data indicate that skeletal muscle possesses many of the components of the innate immune system, including increases in both early- and late-phase cytokines and the presence of toll-like receptors...
Capsaicin-sensitive nerves regulate the metabolic response to abdominal sepsisPatrick Bryant
Department of Surgery, The Penn State College of Medicine, Hershey, Pennsylvania 17033, USA
J Surg Res 112:152-61. 2003..The results suggest an important role for nociceptive SANs and the neuroendocrine system in mediating the host response to abdominal infection...
Epinephrine stimulates IL-6 expression in skeletal muscle and C2C12 myoblasts: role of c-Jun NH2-terminal kinase and histone deacetylase activityRobert A Frost
Department of Cellular and Molecular Physiology, Penn State Univ College of Medicine, Hershey Medical Center H166, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 286:E809-17. 2004..Endotoxin and epinephrine synergize to increase IL-6 mRNA expression. Optimal IL-6 synthesis may require both stress kinase and histone deacetylase activity...
Lipopolysaccharide stimulates nitric oxide synthase-2 expression in murine skeletal muscle and C(2)C(12) myoblasts via Toll-like receptor-4 and c-Jun NH(2)-terminal kinase pathwaysRobert A Frost
Department of Cellular and Molecular Physiology, College of Medicine, The Pennsylvania State University, Hershey Medical Center H166, 500 University Dr, Hershey, PA 17033, USA
Am J Physiol Cell Physiol 287:C1605-15. 2004..Moreover, the JNK inhibitor prevented the LPS-induced increase in NO synthesis. These data indicate that LPS increases NOS2 mRNA expression in muscle via a TLR4-dependent mechanism...
IGF-I activates the eIF4F system in cardiac muscle in vivoThomas C Vary
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Pennsylvania 17033, USA
Mol Cell Biochem 272:209-20. 2005..Furthermore, the results are consistent with a role for assembly of active eIF4G.eIF4E complex and activation of S6K1 in mediating the stimulation of mRNA translation initiation by IGF-I through a PKB/mTOR signaling pathway...
Hindlimb casting decreases muscle mass in part by proteasome-dependent proteolysis but independent of protein synthesisBrian J Krawiec
Dept of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 289:E969-80. 2005....
Temporal differences in the ability of ethanol to modulate endotoxin-induced increases in inflammatory cytokines in muscle under in vivo conditionsRobert A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Alcohol Clin Exp Res 29:1247-56. 2005..Delaying the exposure of animals to LPS for 24 hr after EtOH, however, accentuated the increase in IL-6 and HMGB1, and for IL-6, this increased sensitivity appeared localized to striated muscle...
Cytokine-triggered decreases in levels of phosphorylated eukaryotic initiation factor 4G in skeletal muscle during sepsisThomas C Vary
Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
Shock 26:631-6. 2006..Furthermore, the findings support a role of IL-1 as the proinflammatory mediator responsible for the reduced level of phosphorylated eIF4G...
Hormone, cytokine, and nutritional regulation of sepsis-induced increases in atrogin-1 and MuRF1 in skeletal muscleRobert A Frost
Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
Am J Physiol Endocrinol Metab 292:E501-12. 2007..Thus, under in vivo conditions in mature adult rats, the sepsis-induced increase in muscle atrogin-1 and MuRF1 mRNA appears both glucocorticoid and TNF independent and is unresponsive to leucine...
Tumor necrosis factor mediates hepatic growth hormone resistance during sepsisGladys Yumet
Department of Surgery, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 283:E472-81. 2002..control) in TNF-treated cells 60 min after GH treatment. Collectively, these results suggest that TNF mediates hepatic GH resistance during sepsis by inhibiting the duration of signaling via the janus kinase-2/STAT5 pathway...
Lipopolysaccharide regulates proinflammatory cytokine expression in mouse myoblasts and skeletal muscleRobert A Frost
Department of Cellular and Molecular Physiology, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Regul Integr Comp Physiol 283:R698-709. 2002..Our data suggest that LPS stimulates cytokine expression not only in classical immune tissues but also in skeletal muscle...
Hepatic growth hormone resistance during sepsis is associated with increased suppressors of cytokine signaling expression and impaired growth hormone signalingGladys Yumet
Departments of Surgery, Pennsylvania State University College of Medicine, Milton S. Hershey Medical Center, Hershey, PA, USA
Crit Care Med 34:1420-7. 2006..Hepatic messenger RNA expression of SOCS-1, SOCS-3, and CIS was transiently increased during abdominal sepsis and temporally associated with the development of hepatic GH resistance...
Alcohol impairs insulin and IGF-I stimulation of S6K1 but not 4E-BP1 in skeletal muscleVinayshree Kumar
Department of Cellular and Molecular Physiology, Pennsylvania State College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Endocrinol Metab 283:E917-28. 2002..Hence, acute alcohol intoxication alters selected aspects of translational control under both basal and anabolic hormone-stimulated conditions in skeletal muscle in a glucocorticoid-independent manner...
Multiple Toll-like receptor ligands induce an IL-6 transcriptional response in skeletal myocytesRobert A Frost
Department of Cellular and Molecular Physiology H166, Pennsylvania State University College of Medicine, 500 University Dr, Hershey, Pennsylvania 17033, USA
Am J Physiol Regul Integr Comp Physiol 290:R773-84. 2006..The data suggest that skeletal muscle and muscle cells recognize pathogen-associated molecules with specific TLRs to initiate an IL-6 transcriptional response...
HIV antiretroviral agents inhibit protein synthesis and decrease ribosomal protein S6 and 4EBP1 phosphorylation in C2C12 myocytesLy Q Hong-Brown
Department of Cellular and Molecular Physiology H166, Penn State University College of Medicine, Hershey, PA 17033, USA
AIDS Res Hum Retroviruses 21:854-62. 2005..In conclusion, nelfinavir, nevirapine, and zidovudine treatments decreased protein synthesis in myocytes and this effect was correlated with a reduction in the phosphorylation level of proteins that regulate translation initiation...
Indinavir impairs protein synthesis and phosphorylations of MAPKs in mouse C2C12 myocytesLy Q Hong-Brown
Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, Pennsylvania 17033, USA
Am J Physiol Cell Physiol 287:C1482-92. 2004..This decrease was associated with the disruption of the ERK1/2 and p38 MAPK pathways and a reduction in both the level of functional eIF4F complex and rpS6 phosphorylation...
Research Grants
- Antiretroviral-Induced Defects in Muscle Protein SynthesisCharles H Lang; Fiscal Year: 2010..Such data is needed to both realize the full potential and avoid possible pitfalls of this drug in the long-term treatment of HIV-infected individuals. ..
- CYTOKINE REGULATION OF IGF SYSTEM DURING INFECTIONCharles Lang; Fiscal Year: 2007..abstract_text> ..
- Antiretroviral-Induced Defects in Muscle Protein SynthesisCharles Lang; Fiscal Year: 2007..Such data is needed to both realize the full potential and avoid possible pitfalls of this drug in the long-term treatment of HIV-infected individuals. ..
- Regulation of Nutrient Sensing and Muscle Wasting by AlcoholCharles Lang; Fiscal Year: 2007..The proposed studies have a translational underpinning in that the data may lead to development of novel clinical interventions designed to reverse alcoholic myopathy during rehabilitation. ..
- Regulation of Nutrient Sensing and Muscle Wasting by AlcoholCharles Lang; Fiscal Year: 2009..The proposed studies have a translational underpinning in that the data may lead to development of novel clinical interventions designed to reverse alcoholic myopathy during rehabilitation. ..
- Cytokine Regulation of Muscle Protein Synthesis During InfectionCharles Lang; Fiscal Year: 2009..Our research will determine the mechanism for this muscle atrophy which will ultimately lead to development of novel therapeutic treatment and improve patient outcome. ..
- MYOCARDIAL PROTEIN SYNTHESIS AFTER ALCOHOL INTOXICATIONCharles H Lang; Fiscal Year: 2010..Overall, the research design will establish the mechanism by which myocardial protein synthesis is reduced in response to alcohol abuse. ..
- Cytokine Regulation of Muscle Protein Synthesis During InfectionCharles H Lang; Fiscal Year: 2010..Our research will determine the mechanism for this muscle atrophy which will ultimately lead to development of novel therapeutic treatment and improve patient outcome. ..
- AntiretroviraI induced Defects in Muscle Protein SynthesCharles Lang; Fiscal Year: 2009..Such data are needed to both realize the full potential and avoid possible pitfalls of this drug class in long-term treatment of HIV infection. ..
- Antiretroviral-Induced Defects in Muscle Protein SynthesisCharles H Lang; Fiscal Year: 2010..Such data is needed to both realize the full potential and avoid possible pitfalls of this drug in the long-term treatment of HIV-infected individuals. ..
- Regulation of Nutrient Sensing and Muscle Wasting by AlcoholCharles H Lang; Fiscal Year: 2010..The proposed studies have a translational underpinning in that the data may lead to development of novel clinical interventions designed to reverse alcoholic myopathy during rehabilitation. ..
- Antiretroviral-Induced Defects in Muscle Protein SynthesisCharles Lang; Fiscal Year: 2009..Such data is needed to both realize the full potential and avoid possible pitfalls of this drug in the long-term treatment of HIV-infected individuals. ..
- Myocardial Protein Synthesis After Thermal InjuryCharles Lang; Fiscal Year: 2005..Overall, the research will elucidate the mechanisms by which myocardial protein synthesis is reduced after thermal injury, leading to the better understanding and treatment of the resulting cardiomyopathy. - ..
- REGULATION OF IGF SYSTEM AND MUSCLE WASTING BY ALCOHOLCharles Lang; Fiscal Year: 2001....
- CYTOKINE REGULATION OF IGF SYSTEM DURING INFECTIONCharles Lang; Fiscal Year: 1999..These experiments will be conducted on cultured L6 myotubes, and protein synthesis, breakdown and amino acid transport will be quantitated. ..
- CYTOKINE REGULATION OF IGF SYSTEM DURING INFECTIONCharles Lang; Fiscal Year: 2003..abstract_text> ..
