Data obtained in vitro suggest that the ability to mobilize fat decreases with age. We determined lipolytic rates in vivo in normal weight young adult (22-33 yr) and elderly (65-77 yr) subjects using a simultaneous infusion of [1,2-13C2]palmitate and [2H5]glycerol. The subjects were studied after a 12-h fast and again after 60-82 h of fasting. When lipolysis was expressed per unit of adipose tissue the values for the young adults were more than double those for the elderly (P less than 0.05). However, the amount of body fat in the elderly was twice that of the young adults, so that lipolysis per unit of body weight was similar in both groups. These results demonstrate that lipolysis per unit of adipose tissue is lower in elderly subjects. This may be due to their increase in body fat, however, since the total amount of potential energy mobilized from adipose tissue was similar to that of the young adults.
S Klein, V R Young, G L Blackburn, B R Bistrian, R R Wolfe
Title and authors | Publication | Year |
---|---|---|
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Wang S, Tsay R, Zhang D, Cunha D, Fukagawa N |
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Osmond AD, Leija RG, Arevalo JA, Curl CC, Duong JJ, Huie MJ, Masharani U, Brooks GA |
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Deng L, Wu SA, Qi L, Kersten S |
Molecular Metabolism | 2023 |
Quantitative flux analysis in mammals.
Bartman CR, TeSlaa T, Rabinowitz JD |
Nature metabolism | 2021 |
The Role of Leptin in Maintaining Plasma Glucose During Starvation
RJ Perry, GI Shulman |
Postdoc journal : a journal of postdoctoral research and postdoctoral affairs | 2018 |
In-vivo metabolic studies of regional adipose tissue:
A Melvin, SE McQuaid |
Cardiovascular endocrinology & metabolism | 2018 |
Mitochondrial function in ageing: coordination with signalling and transcriptional pathways: Mitochondrial function in ageing
F Yin, H Sancheti, Z Liu, E Cadenas |
The Journal of Physiology | 2015 |
A reason for intermittent fasting to suppress the awakening of dormant breast tumors
J Lankelma, B Kooi, K Krab, JC Dorsman, H Joenje, HV Westerhoff |
Biosystems | 2015 |
Modeling changes in glucose and glycerol rates of appearance when true basal rates of appearance cannot be readily determined
L Pyle, BC Bergman, KJ Nadeau, M Cree-Green |
American journal of physiology. Endocrinology and metabolism | 2015 |
Glucose and glycerol concentrations and their tracer enrichment measurements using liquid chromatography tandem mass spectrometry: LC-MS/MS measurements of glucose and glycerol
A Bornø, L Foged, G Hall |
Journal of Mass Spectrometry | 2014 |
Nutrition and Performance in Masters Athletes
N Johnson, S Stannard |
Nutrition and Performance in Masters Athletes | 2014 |
Bed Rest Worsens Impairments in Fat and Glucose Metabolism in Older, Overweight Adults
RH Coker, NP Hays, RH Williams, L Xu, RR Wolfe, WJ Evans |
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences | 2013 |
Sports Nutrition: Enhancing Athletic Performance
J Bunn |
Sports Nutrition: Enhancing Athletic Performance | 2013 |
Aging-Associated Reductions in Lipolytic and Mitochondrial Proteins in Mouse Adipose Tissue Are Not Rescued by Metformin Treatment
E Mennes, CM Dungan, S Frendo-Cumbo, DL Williamson, DC Wright |
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences | 2013 |
Effects of DHEA on metabolic and endocrine functions of adipose tissue
J Karbowska, Z Kochan |
Hormone Molecular Biology and Clinical Investigation | 2013 |
Selective cannabinoid-1 receptor blockade benefits fatty acid and triglyceride metabolism significantly in weight-stable nonhuman primates
V Vaidyanathan, RA Bastarrachea, PB Higgins, VS Voruganti, S Kamath, NV DiPatrizio, D Piomelli, AG Comuzzie, EJ Parks |
American journal of physiology. Endocrinology and metabolism | 2012 |
Extended-Release Niacin Acutely Suppresses Postprandial Triglyceridemia
MH Usman, A Qamar, R Gadi, S Lilly, H Goel, J Hampson, ML Mucksavage, GA Nathanson, DJ Rader, RL Dunbar |
The American Journal of Medicine | 2012 |
dSir2 deficiency in the fatbody, but not muscles, affects systemic insulin signaling, fat mobilization and starvation survival in flies
KK Banerjee, C Ayyub, S Sengupta, U Kolthur-Seetharam |
Aging | 2012 |
Fat-reducing effects of dehydroepiandrosterone involve upregulation of ATGL and HSL expression, and stimulation of lipolysis in adipose tissue
J Karbowska, Z Kochan |
Steroids | 2012 |
Adaptive reciprocity of lipid and glucose metabolism in human short-term starvation
MR Soeters, PB Soeters, MG Schooneman, SM Houten, JA Romijn |
American journal of physiology. Endocrinology and metabolism | 2012 |
Selective cannabinoid-1 receptor blockade benefits fatty acid and triglyceride metabolism significantly in weight-stable nonhuman primates
V Vaidyanathan, RA Bastarrachea, PB Higgins, VS Voruganti, S Kamath, NV DiPatrizio, D Piomelli, AG Comuzzie, EJ Parks |
American journal of physiology. Endocrinology and metabolism | 2012 |
Extending food deprivation reverses the short-term lipolytic response to fasting: role of the triacylglycerol/fatty acid cycle
JM Weber, SP Reidy |
The Journal of experimental biology | 2012 |
Protocol for the measurement of fatty acid and glycerol turnover in vivo in baboons[S]
RA Bastarrachea, SM Veron, V Vaidyanathan, M Garcia-Forey, VS Voruganti, PB Higgins, EJ Parks |
Journal of lipid research | 2011 |
Lipolytic Effects of B-Type Natriuretic Peptide1–32 in Adipose Tissue of Heart Failure Patients Compared With Healthy Controls
J Polak, M Kotrc, Z Wedellova, A Jabor, I Malek, J Kautzner, L Kazdova, V Melenovsky |
Journal of the American College of Cardiology | 2011 |
Protocol for the measurement of fatty acid and glycerol turnover in vivo in baboons
RA Bastarrachea, SM Veron, V Vaidyanathan, M Garcia-Forey, VS Voruganti, PB Higgins, EJ Parks |
Journal of lipid research | 2011 |
Fatty Acid Metabolism in the Liver, Measured by Positron Emission Tomography, Is Increased in Obese Individuals
P Iozzo, M Bucci, A Roivainen, K Någren, MJ Järvisalo, J Kiss, L Guiducci, B Fielding, AG Naum, R Borra, K Virtanen, T Savunen, PA Salvadori, E Ferrannini, J Knuuti, P Nuutila |
Gastroenterology | 2010 |
Free fatty acid kinetics in the late phase of postexercise recovery: importance of resting fatty acid metabolism and exercise-induced energy deficit
F Magkos, BS Mohammed, BW Patterson, B Mittendorfer |
Metabolism: clinical and experimental | 2009 |
Relationship between Total and High Molecular Weight Adiponectin Levels and Plasma Nonesterified Fatty Acid Tolerance during Enhanced Intravascular Triacylglycerol Lipolysis in Men
F Lavoie, F Frisch, P Brassard, F Normand-Lauzière, D Cyr, R Gagnon, R Drouin, , AC Carpentier |
The Journal of clinical endocrinology and metabolism | 2009 |
Stable isotope-labeled tracers for the investigation of fatty acid and triglyceride metabolism in humansin vivo
F Magkos, B Mittendorfer |
Clinical Lipidology | 2009 |
Stable isotope-labeled tracers for the investigation of fatty acid and triglyceride metabolism in humans in vivo
F Magkos, B Mittendorfer |
Clinical Lipidology | 2009 |
Impaired Plasma Nonesterified Fatty Acid Tolerance Is an Early Defect in the Natural History of Type 2 Diabetes
P Brassard, F Frisch, F Lavoie, D Cyr, A Bourbonnais, SC Cunnane, BW Patterson, R Drouin, JP Baillargeon, AC Carpentier |
The Journal of clinical endocrinology and metabolism | 2008 |
Adipose tissue metabolism, diabetes and vascular disease — lessons from in vivo studies
LK Summers |
Diabetes & vascular disease research : official journal of the International Society of Diabetes and Vascular Disease | 2006 |
Mechanism of insulin-stimulated clearance of plasma nonesterified fatty acids in humans
AC Carpentier, F Frisch, P Brassard, F Lavoie, A Bourbonnais, D Cyr, R Giguère, JP Baillargeon |
American journal of physiology. Endocrinology and metabolism | 2006 |
Fat oxidation and plasma removal capacity of an intravenous fat emulsion in elderly and young men
W Åberg, A Thörne, T Olivecrona, J Nordenström |
Nutrition | 2006 |
On the suppression of plasma nonesterified fatty acids by insulin during enhanced intravascular lipolysis in humans
AC Carpentier, F Frisch, D Cyr, P Généreux, BW Patterson, R Giguère, JP Baillargeon |
American journal of physiology. Endocrinology and metabolism | 2005 |
On the suppression of plasma nonesterified fatty acids by insulin during enhanced intravascular lipolysis in humans
AC Carpentier, F Frisch, D Cyr, P Généreux, BW Patterson, R Giguère, JP Baillargeon |
American journal of physiology. Endocrinology and metabolism | 2005 |
Are peristaltic pumps as reliable as syringe pumps for metabolic research? assessment of accuracy, precision, and metabolic kinetics
BS Mohammed, DA Fields, B Mittendorfer, AR Coggan, S Klein |
Metabolism | 2004 |
Adipose tissue triglyceride turnover, de novo lipogenesis, and cell proliferation in humans measured with 2 H 2 O
A Strawford, F Antelo, M Christiansen, MK Hellerstein |
American journal of physiology. Endocrinology and metabolism | 2004 |
Effect of sex and obesity on basal VLDL-triacylglycerol kinetics
S Klein, RR Wolfe |
Journal of Clinical Investigation | 2003 |
Effect of sex and obesity on basal VLDL-triacylglycerol kinetics
S Klein, RR Wolfe |
Journal of Clinical Investigation | 2003 |
Adipose tissue sensitization to insulin induced by troglitazone and MEDICA 16 in obese Zucker rats in vivo
B Kalderon, N Mayorek, L Ben-Yaacov, J Bar-Tana |
American journal of physiology. Endocrinology and metabolism | 2003 |
Blunted lipolytic response to fasting in abdominally obese women: evidence for involvement of hyposomatotropism
MM Buijs, J Burggraaf, C Wijbrandts, ML de Kam, M Frölich, AF Cohen, JA Romijn, HP Sauerwein, AE Meinders, H Pijl |
The American journal of clinical nutrition | 2003 |
Subcutaneous Abdominal Adipose Tissue Lipolysis During Exercise Determined by Arteriovenous Measurements in Older Women
KH Lange, J Lorentsen, F Isaksson, L Simonsen, A Juul, NJ Christensen, M Kjaer, J Bulow |
Journal of the American Geriatrics Society | 2002 |
The effect of carbohydrate and fat variation in euenergetic diets on postabsorptive free fatty acid release
PH Bisschop, MT Ackermans, E Endert, AF Ruiter, AJ Meijer, F Kuipers, HP Sauerwein, JA Romijn |
British Journal of Nutrition | 2002 |
Protein turnover, lipolysis, and endogenous hormonal secretion in critically ill children
PE Cogo, VP Carnielli, F Rosso, A Cesarone, G Giordano, D Faggian, M Plebani, A Barreca, F Zacchello |
Critical Care Medicine | 2002 |
Glycerol and NEFA kinetics in long-term fasting king penguins: phase II versus phase III
SF Bernard, C Fayolle, JP Robin, R Groscolas |
The Journal of experimental biology | 2002 |
Determination of Glycerol in Plasma by an Automated Enzymatic Spectrophotometric Procedure
R Li, B Keymeulen, E Gerlo |
Clinical Chemistry and Laboratory Medicine | 2001 |
Sources of blood glycerol during fasting
MD Jensen, V Chandramouli, WC Schumann, K Ekberg, SF Previs, S Gupta, BR Landau |
American journal of physiology. Endocrinology and metabolism | 2001 |
Endurance training and GH administration in elderly women: effects on abdominal adipose tissue lipolysis
KH Lange, J Lorentsen, F Isaksson, A Juul, MH Rasmussen, NJ Christensen, J Bülow, M Kjær |
American journal of physiology. Endocrinology and metabolism | 2001 |
The catecholamine response to spaceflight: role of diet and gender
TP Stein, CE Wade |
American journal of physiology. Endocrinology and metabolism | 2001 |
Studies On The Use Of “Slimax”, A Chinese Herbal Mixture, In The Treatment Of Human Obesity
V Ignjatovic, E Ogru, M Heffernan, R Libinaki, Y Lim, F Ng |
Pharmaceutical Biology | 2000 |
Influence of age on the thermic response to caffeine in women
PJ Arciero, CL Bougopoulos, BC Nindl, NL Benowitz |
Metabolism | 2000 |
Leptin: an essential regulator of lipid metabolism
SP Reidy, JM Weber |
Comparative Biochemistry and Physiology - Part A Molecular & Integrative Physiology | 2000 |
Effects of plasma epinephrine on fat metabolism during exercise: interactions with exercise intensity
R Mora-Rodriguez, EF Coyle |
American journal of physiology. Endocrinology and metabolism | 2000 |
Lipid metabolism during endurance exercise
JF Horowitz, S Klein |
The American journal of clinical nutrition | 2000 |
Glycerol production and utilization measured using stable isotopes
BR Landau |
Proceedings of the Nutrition Society | 1999 |
Systemic resistance to the antilipolytic effect of insulin in black and white women with visceral obesity
JB Albu, M Curi, M Shur, L Murphy, DE Matthews, FX Pi-Sunyer |
American journal of physiology. Endocrinology and metabolism | 1999 |
β-Adrenergically Stimulated Fat Oxidation Is Diminished in Middle-Aged Compared to Young Subjects*
EE Blaak, MA van Baak, WH Saris |
The Journal of clinical endocrinology and metabolism | 1999 |
Validation of a new procedure to determine plasma fatty acid concentration and isotopic enrichment
BW Patterson, G Zhao, N Elias, DL Hachey, S Klein |
Journal of lipid research | 1999 |
Metabolism of dietary α-linolenic acid vs. eicosapentaenoic acid in rat immune cell phospholipids during endotoxemia
JD Palombo, SJ DeMichele, PJ Boyce, M Noursalehi, RA Forse, BR Bistrian |
Lipids | 1998 |
Determination of Glycerol Concentrations and Glycerol Isotopic Enrichments in Human Plasma by Gas Chromatography/Mass Spectrometry
MT Ackermans, AF Ruiter, E Endert |
Analytical Biochemistry | 1998 |
Role of human liver lipogenesis and reesterification in triglycerides secretion and in FFA reesterification
F Diraison, M Beylot |
American journal of physiology. Endocrinology and metabolism | 1998 |
Measurement of plasma glycerol specific activity by high performance liquid chromatography to determine glycerol flux
RL Judd, R Nelson, S Klein, MD Jensen, JM Miles |
Journal of lipid research | 1998 |
Lipolysis in elderly postmenopansal women
J Calles-Escandón, ET Poehlman, E García-Rubí |
Metabolism | 1997 |
Simultaneous Measurement of the Rates of Appearance of Palmitic and Linoleic Acid in Critically Ill Infants
PE Cogo, G Giordano, T Badon, A Orzali, LJ Zimmermann, F Zacchello, PJ Sauer, VP Carnielli |
Pediatric Research | 1997 |
Cyclic vs Continuous Enteral Feeding With ω-3 and γ-Linolenic Fatty Acids: Effects on Modulation of Phospholipid Fatty Acids in Rat Lung and Liver Immune Cells
JD Palombo, SJ Demichele, E Lydon, BR Bistrian |
JPEN. Journal of parenteral and enteral nutrition | 1997 |
Metabolic response to radiation therapy in patients with cancer
S Klein, K Luu, Y Sakurai, R Miller, M Langer, XJ Zhang |
Metabolism | 1996 |
Contributions of liver and kidneys to glycerol production and utilization in the dog
SF Previs, SK Martin, JW Hazey, MV Soloviev, AP Keating, D Lucas, F David, J Koshy, DW Kirschenbaum, KY Tserng, H Brunengraber |
American journal of physiology. Endocrinology and metabolism | 1996 |
Glycerol production and utilization in humans: sites and quantitation
BR Landau, J Wahren, SF Previs, K Ekberg, V Chandramouli, H Brunengraber |
American journal of physiology. Endocrinology and metabolism | 1996 |
Substrate Metabolism in Humans: 1995 A.S.P.E.N. Research Workshop
S Klein, J Miles |
JPEN. Journal of parenteral and enteral nutrition | 1996 |
Use of 2H2O for estimating rates of gluconeogenesis. Application to the fasted state
BR Landau, J Wahren, V Chandramouli, WC Schumann, K Ekberg, SC Kalhan |
Journal of Clinical Investigation | 1995 |
Rate of glucose entry into hepatic uridine diphosphoglucose by the direct pathway in fasted and fed states in normal humans
MK Hellerstein, S Kaempfer, JS Reid, K Wu, CH Shackleton |
Metabolism | 1995 |
Effects of caffeine ingestion on NE kinetics, fat oxidation, and energy expenditure in younger and older men
PJ Arciero, AW Gardner, J Calles-Escandon, NL Benowitz, ET Poehlman |
American journal of physiology. Endocrinology and metabolism | 1995 |
Endocrinologic and metabolic effects of interleukin-6 in humans
JM Stouthard, JA Romijn, TV der Poll, E Endert, S Klein, PJ Bakker, CH Veenhof, HP Sauerwein |
American journal of physiology. Endocrinology and metabolism | 1995 |
A limitation in the use of mass isotopomer distributions to measure gluconeogenesis in fasting humans
BR Landau, CA Fernandez, SF Previs, K Ekberg, V Chandramouli, J Wahren, SC Kalhan, H Brunengraber |
American journal of physiology. Endocrinology and metabolism | 1995 |
Effects of cigarette smoking and its cessation on lipid metabolism and energy expenditure in heavy smokers
MK Hellerstein, NL Benowitz, RA Neese, JM Schwartz, R Hoh, PJ 3rd, J Hsieh, D Faix |
Journal of Clinical Investigation | 1994 |
Glycerol metabolism in severe falciparum malaria
S Pukrittayakamee, NJ White, TM Davis, W Supanaranond, J Crawley, B Nagachinta, DH Williamson |
Metabolism | 1994 |
Fast gas chromatographic—mass spectrometric method for the evaluation of plasma fatty acid turnover using [1-13C]palmitate
F Magni, PM Piatti, LD Monti, P Lecchi, AE Pontiroli, G Pozza, MG Kienle |
Journal of Chromatography B Biomedical Sciences and Applications | 1994 |
Free fatty acid and glucose metabolism in human aging: evidence for operation of the Randle cycle
RC Bonadonna, LC Groop, DC Simonson, RA DeFronzo |
American journal of physiology. Endocrinology and metabolism | 1994 |
In vivo regulation of lipolysis in humans
SW Coppack, MD Jensen, JM Miles |
Journal of lipid research | 1994 |
Progressive alterations in lipid and glucose metabolism during short-term fasting in young adult men
S Klein, Y Sakurai, JA Romijn, RM Carroll |
American journal of physiology. Endocrinology and metabolism | 1993 |
Model for measuring absolute rates of hepatic de novo lipogenesis and reesterification of free fatty acids
MK Hellerstein, RA Neese, JM Schwarz |
American journal of physiology. Endocrinology and metabolism | 1993 |
Energy Requirements in the Elderly*
VR Young |
Nutrition Reviews | 1992 |
Macronutrient Needs in the Elderly
VR Young |
Nutrition Reviews | 1992 |
In vivo assessment of the metabolic alterations in glucagonoma syndrome
S Klein, F Jahoor, H Baba, CM Townsend, M Shepherd, RR Wolfe |
Metabolism | 1992 |
A mass spectrometric method for measuring glycerol levels and enrichments in plasma using 13C and 2H stable isotopic tracers
CD Gilker, GR Pesola, DE Matthews |
Analytical Biochemistry | 1992 |
Generalized lipodystrophy: In vivo evidence for hypermetabolism and insulin-resistant lipid, glucose, and amino acid kinetics
S Klein, F Jahoor, RR Wolfe, CA Stuart |
Metabolism | 1992 |
Possible role of adrenergic mechanism in starvation-induced reduction in circulating thyroxine and triiodothyronine in rats
T Ikeda, I Ohtani, T Hoshino, Y Tanaka, T Takeuchi, H Mashiba |
Journal of Endocrinological Investigation | 1991 |
Effect of reduced dietary intake on energy expenditure, protein turnover, and glucose cycling in man
TP Stein, WV Rumpler, MJ Leskiw, MD Schluter, R Staples, CE Bodwell |
Metabolism | 1991 |
Determination of Plasma-Free Fatty Acid Kinetics with Tracers: Methodologic Considerations
JM Miles, MD Jensen |
JPEN. Journal of parenteral and enteral nutrition | 1991 |
Glycerol metabolism in humans: validation of2H- and13C-labelled tracers
DE Matthews, GR Pesola, V Kvetan |
Acta Diabetologica | 1991 |
Palmitate turnover and its response to glucose infusion in weight-losing cancer patients
O Selberg, DC McMillan, T Preston, H Carse, A Shenkin, HJ Burns |
Clinical Nutrition | 1990 |
Energy cost of fat-fuel mobilization in geriatric trauma
M Jeevananadam, DH Young, WR Schiller |
Metabolism | 1990 |
The physiology of nutritional assessment and therapy in protein-calorie malnutrition
MM McMahon, BR Bristrian |
Disease-a-Month | 1990 |
Selective reduction of alpha 2-adrenergic responsiveness in hamster adipose tissue during prolonged starvation
C Carpene, J Galitzky, JS Saulnier-Blache, M Lafontan |
American journal of physiology. Endocrinology and metabolism | 1990 |
Hypoglycemia: A pathophysiologic approach
Boris, A Sadeghi-Nejad |
Acta Paediatrica | 1989 |
Effect of carbohydrate refeeding on free fatty acids after a fast in obese diabetic and obese non-diabetic females
DS Gray, M Takahashi, JS Fisler, J LoPresti, JT Nicoloff, GA Bray |
Metabolism | 1989 |
Differential catecholamine responses to dietary intake: Effects of macronutrients on dopamine and epinephrine excretion in the rat
LN Kaufman, JB Young, L Landsberg |
Metabolism | 1989 |
Effect of short- and long-term beta-adrenergic blockade on lipolysis during fasting in humans
S Klein, EJ Peters, OB Holland, RR Wolfe |
American journal of physiology. Endocrinology and metabolism | 1989 |
Thermogenic response to an oral glucose load in man: comparison between young and elderly subjects
D Bloesch, Y Schutz, E Breitenstein, E Jéquier, JP Felber |
Journal of the American College of Nutrition | 1988 |
2 The use of isotopic tracers in studying lipid metabolism in human subjects
S Klein, RR Wolfe |
Baillière's Clinical Endocrinology and Metabolism | 1987 |
Determination of steady state and nonsteady-state glycerol kinetics in humans using deuterium-labeled tracer
M Beylot, C Martin, B Beaufrere, JP Riou, R Mornex |
Journal of lipid research | 1987 |