Keck School Faculty

Jang-Hyun Youn

Jang-Hyun Youn

Associate Professor of Physiology & Neuroscience
Physiology and Biophysics
CSC 214, 2250 Alcazar Steet Health Sciences Campus Los Angeles

Estimating in vivo potassium distribution and fluxes with stable potassium isotopes Am J Physiol Cell Physiol. 2022 03 01; 322(3):C410-C420. . View in PubMed

Stable potassium isotopes (41K/39K) track transcellular and paracellular potassium transport in biological systems Front Physiol. 2022; 13:1016242. . View in PubMed

Interaction of Gut Microbiota and High-Sodium, Low-Potassium Diet in Altering Plasma Triglyceride Profiles Revealed by Lipidomics Analysis Mol Nutr Food Res. 2019 12; 63(24):e1900752. . View in PubMed

Effects of Gut Bacteria Depletion and High-Na+ and Low-K+ Intake on Circulating Levels of Biogenic Amines Mol Nutr Food Res. 2019 02; 63(4):e1801184. . View in PubMed

Corrigendum to "Carbonyl reductase 1 protects pancreatic ß-cells against oxidative stress-induced apoptosis in glucotoxicity and glucolipotoxicity" [Free RadicBiol. Med. 49 (2010):1522-1533]. Free Radic Biol Med. 2018 12; 129:614-617. . View in PubMed

Postprandial effect to decrease soluble epoxide hydrolase activity: roles of insulin and gut microbiota J Nutr Biochem. 2017 11; 49:8-14. . View in PubMed

Potassium Homeostasis: The Knowns, the Unknowns, and the Health Benefits Physiology (Bethesda). 2017 03; 32(2):100-111. . View in PubMed

Circulating free fatty acids inhibit food intake in an oleate-specific manner in rats Physiol Behav. 2016 12 01; 167:194-201. . View in PubMed

Fat sensing and metabolic syndrome Rev Endocr Metab Disord. 2014 Dec; 15(4):263-75. . View in PubMed

Increasing plasma [K+] by intravenous potassium infusion reduces NCC phosphorylation and drives kaliuresis and natriuresis Am J Physiol Renal Physiol. 2014 May 01; 306(9):F1059-68. . View in PubMed

Apoptosis. 2014 Apr; 19(4):682-97. . View in PubMed

Regulation of hypothalamic-pituitary-adrenal axis by circulating free fatty acids in male Wistar rats: role of individual free fatty acids Endocrinology. 2014 Mar; 155(3):923-31. . View in PubMed

Role of pituitary in K+ homeostasis: impaired renal responses to altered K+ intake in hypophysectomized rats Am J Physiol Regul Integr Comp Physiol. 2013 Jun 15; 304(12):R1166-74. . View in PubMed

Gut sensing of potassium intake and its role in potassium homeostasis Semin Nephrol. 2013 May; 33(3):248-56. . View in PubMed

Need to quickly excrete K(+)? Turn off NCC. Kidney Int. 2013 May; 83(5):779-82.. View in PubMed

A Fall in plasma free fatty acid (FFA) level activates the hypothalamic-pituitary-adrenal axis independent of plasma glucose: evidence for brain sensing of circulating FFA Endocrinology. 2012 Aug; 153(8):3587-92. . View in PubMed

Estimating hepatic glucokinase activity using a simple model of lactate kinetics Diabetes Care. 2012 May; 35(5):1015-20. . View in PubMed

Effects of nicotinic acid on gene expression: potential mechanisms and implications for wanted and unwanted effects of the lipid-lowering drug J Clin Endocrinol Metab. 2011 Oct; 96(10):3048-55. . View in PubMed

Am J Physiol Regul Integr Comp Physiol. 2011 Aug; 301(2):R421-9. . View in PubMed

Continuous 24-h nicotinic acid infusion in rats causes FFA rebound and insulin resistance by altering gene expression and basal lipolysis in adipose tissue Am J Physiol Endocrinol Metab. 2011 Jun; 300(6):E1012-21. . View in PubMed

Widespread effects of nicotinic acid on gene expression in insulin-sensitive tissues: implications for unwanted effects of nicotinic acid treatment Metabolism. 2011 Jan; 60(1):134-44. . View in PubMed

Carbonyl reductase 1 protects pancreatic ß-cells against oxidative stress-induced apoptosis in glucotoxicity and glucolipotoxicity Free Radic Biol Med. 2010 Nov 30; 49(10):1522-33. . View in PubMed

eNOS plays a major role in adiponectin synthesis in adipocytes Am J Physiol Endocrinol Metab. 2010 Apr; 298(4):E846-53. . View in PubMed

Peroxisome proliferator-activated receptor-gamma coactivator 1-alpha overexpression prevents endothelial apoptosis by increasing ATP/ADP translocase activity Arterioscler Thromb Vasc Biol. 2010 Feb; 30(2):290-7. . View in PubMed

Narrative review: evolving concepts in potassium homeostasis and hypokalemia Ann Intern Med. 2009 May 05; 150(9):619-25. . View in PubMed

Recent advances in understanding integrative control of potassium homeostasis Annu Rev Physiol. 2009; 71:381-401. . View in PubMed

AMPK activation with AICAR provokes an acute fall in plasma [K+] Am J Physiol Cell Physiol. 2008 Jan; 294(1):C126-35. . View in PubMed

Essential role of mitochondrial function in adiponectin synthesis in adipocytes Diabetes. 2007 Dec; 56(12):2973-81. . View in PubMed

Evidence for gut factor in K+ homeostasis Am J Physiol Renal Physiol. 2007 Aug; 293(2):F541-7. . View in PubMed

Insulin regulation of skeletal muscle PDK4 mRNA expression is impaired in acute insulin-resistant states Diabetes. 2006 Aug; 55(8):2311-7. . View in PubMed

Modest dietary K+ restriction provokes insulin resistance of cellular K+ uptake and phosphorylation of renal outer medulla K+ channel without fall in plasma K+ concentration Am J Physiol Cell Physiol. 2006 May; 290(5):C1355-63. . View in PubMed

Alpha-lipoic acid prevents endothelial dysfunction in obese rats via activation of AMP-activated protein kinase Arterioscler Thromb Vasc Biol. 2005 Dec; 25(12):2488-94. . View in PubMed

Role of muscle in regulating extracellular [K+] Semin Nephrol. 2005 Sep; 25(5):335-42. . View in PubMed

alpha-Lipoic acid prevents diabetes mellitus in diabetes-prone obese rats Biochem Biophys Res Commun. 2005 Jan 07; 326(1):197-202. . View in PubMed

Dexamethasone treatment causes resistance to insulin-stimulated cellular potassium uptake in the rat Am J Physiol Cell Physiol. 2004 Nov; 287(5):C1229-37. . View in PubMed

Anti-obesity effects of alpha-lipoic acid mediated by suppression of hypothalamic AMP-activated protein kinase Nat Med. 2004 Jul; 10(7):727-33. . View in PubMed

Insulin suppresses PDK-4 expression in skeletal muscle independently of plasma FFA Am J Physiol Endocrinol Metab. 2004 Jul; 287(1):E69-74. . View in PubMed

Peroxisome proliferator-activated receptor (PPAR)-alpha activation prevents diabetes in OLETF rats: comparison with PPAR-gamma activation Diabetes. 2003 Sep; 52(9):2331-7. . View in PubMed

Lactate induces insulin resistance in skeletal muscle by suppressing glycolysis and impairing insulin signaling Am J Physiol Endocrinol Metab. 2002 Aug; 283(2):E233-40. . View in PubMed

Skeletal muscle regulates extracellular potassium Am J Physiol Renal Physiol. 2002 Jun; 282(6):F967-74. . View in PubMed

Independent regulation of in vivo insulin action on glucose versus K(+) uptake by dietary fat and K(+) content Diabetes. 2002 Apr; 51(4):915-20. . View in PubMed

Effects of high-fat diet and exercise training on intracellular glucose metabolism in rats Am J Physiol Endocrinol Metab. 2000 Jun; 278(6):E977-84. . View in PubMed

Glucose transporters and glucose transport in skeletal muscles of 1- to 25-mo-old rats Am J Physiol. 1993 Mar; 264(3 Pt 1):E319-27. . View in PubMed

Effects of alkaline pH on the stimulation of glucose transport in rat skeletal muscle Biochim Biophys Acta. 1993 Feb 09; 1145(2):199-204. . View in PubMed

Calcium stimulates glucose transport in skeletal muscle by a pathway independent of contraction Am J Physiol. 1991 Mar; 260(3 Pt 1):C555-61. . View in PubMed

Prolonged incubation of skeletal muscle increases system A amino acid transport Am J Physiol. 1991 Jan; 260(1 Pt 1):C88-95. . View in PubMed

Fructose effect to suppress hepatic glycogen degradation J Biol Chem. 1987 Aug 25; 262(24):11470-7. . View in PubMed

Synergism of glucose and fructose in net glycogen synthesis in perfused rat livers J Biol Chem. 1986 Dec 05; 261(34):15960-9. . View in PubMed

Glucose transporters and maximal transport are increased in endurance-trained rat soleus J Appl Physiol (1985). 1992 Aug; 73(2):486-92. . View in PubMed

Computed insulin profiles for normalization of glycemia in diabetic patients Bull Math Biol. 1983; 45(5):739-48. . View in PubMed

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