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Journal Articles

Intracellular negative feedback mechanisms in blubber and muscle moderate acute stress responses in fasting seals

Jessica G. Avalos, Elizabeth R. Piotrowski, Allison D. Northey, Daniel E. Crocker, Jane I. Khudyakov

J Exp Biol (2023) 226 (24): jeb246694.

https://doi.org/10.1242/jeb.246694

Published: 18 December 2023

View article titled, Intracellular negative feedback mechanisms in blubber and muscle moderate acute stress responses in fasting seals

Journal Articles

Changes in apolipoprotein abundance dominate proteome responses to prolonged fasting in elephant seals

Jane I. Khudyakov, Rachel R. Holser, Craig A. Vierra, Serena T. Ly, Theron K. Niel, Basma M. Hasan, Daniel E. Crocker, Daniel P. Costa

J Exp Biol (2022) 225 (4): jeb243572.

https://doi.org/10.1242/jeb.243572

Published: 21 February 2022

View article titled, Changes in apolipoprotein abundance dominate proteome responses to prolonged fasting in elephant seals

Includes: Supplementary data

Journal Articles

Repeated stimulation of the HPA axis alters white blood cell count without increasing oxidative stress or inflammatory cytokines in fasting elephant seal pups

David C. Ensminger, Daniel E. Crocker, Emily K. Lam, Kaitlin N. Allen, José Pablo Vázquez-Medina

J Exp Biol (2021) 224 (18): jeb243198.

https://doi.org/10.1242/jeb.243198

Published: 28 September 2021

View article titled, Repeated stimulation of the HPA axis alters white blood cell count without increasing oxidative stress or inflammatory cytokines in fasting elephant seal pups

Journal Articles

Similar foraging energetics of two sympatric albatrosses despite contrasting life histories and wind-mediated foraging strategies

Caitlin E. Kroeger, Daniel E. Crocker, Rachael A. Orben, David R. Thompson, Leigh G. Torres, Paul M. Sagar, Lisa A. Sztukowski, Timothy Andriese, Daniel P. Costa, Scott A. Shaffer

J Exp Biol (2020) 223 (23): jeb228585.

https://doi.org/10.1242/jeb.228585

Published: 2 December 2020

View article titled, Similar foraging energetics of two sympatric albatrosses despite contrasting life histories and wind-mediated foraging strategies

Includes: Supplementary data

Journal Articles

High fatty acid oxidation capacity and phosphorylation control despite elevated leak and reduced respiratory capacity in northern elephant seal muscle mitochondria

Adam J. Chicco, Catherine H. Le, Amber Schlater, Alex Nguyen, Spencer Kaye, Joseph W. Beals, Rebecca L. Scalzo, Christopher Bell, Erich Gnaiger, Daniel P. Costa, Daniel E. Crocker, Shane B. Kanatous

J Exp Biol (2014) 217 (16): 2947–2955.

https://doi.org/10.1242/jeb.105916

Published: 15 August 2014

View article titled, High fatty acid oxidation capacity and phosphorylation control despite elevated leak and reduced respiratory capacity in northern elephant seal muscle mitochondria

Journal Articles

Elevated carboxyhemoglobin in a marine mammal, the northern elephant seal

Michael S. Tift, Paul J. Ponganis, Daniel E. Crocker

J Exp Biol (2014) 217 (10): 1752–1757.

https://doi.org/10.1242/jeb.100677

Published: 15 May 2014

View article titled, Elevated carboxyhemoglobin in a marine mammal, the northern elephant seal

Journal Articles

Free-swimming northern elephant seals have low field metabolic rates that are sensitive to an increased cost of transport

Jennifer L. Maresh, Samantha E. Simmons, Daniel E. Crocker, Birgitte I. McDonald, Terrie M. Williams, Daniel P. Costa

J Exp Biol (2014) 217 (9): 1485–1495.

https://doi.org/10.1242/jeb.094201

Published: 1 May 2014

View article titled, Free-swimming northern elephant seals have low field metabolic rates that are sensitive to an increased cost of transport

Journal Articles

Prolonged food deprivation increases mRNA expression of deiodinase 1 and 2, and thyroid hormone receptor β-1 in a fasting-adapted mammal

Bridget Martinez, José G. Soñanez-Organis, José Pablo Vázquez-Medina, Jose A. Viscarra, Duncan S. MacKenzie, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2013) 216 (24): 4647–4654.

https://doi.org/10.1242/jeb.085290

Published: 15 December 2013

View article titled, Prolonged food deprivation increases mRNA expression of deiodinase 1 and 2, and thyroid hormone receptor β-1 in a fasting-adapted mammal

Journal Articles

Activation of systemic, but not local, renin–angiotensin system is associated with upregulation of TNF-α during prolonged fasting in northern elephant seal pups

Miwa Suzuki, José Pablo Vázquez-Medina, Jose A. Viscarra, José G. Soñanez-Organis, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2013) 216 (17): 3215–3221.

https://doi.org/10.1242/jeb.085225

Published: 1 September 2013

View article titled, Activation of systemic, but not local, renin–angiotensin system is associated with upregulation of TNF-α during prolonged fasting in northern elephant seal pups

Journal Articles

Prolonged fasting activates Nrf2 in post-weaned elephant seals

José Pablo Vázquez-Medina, José G. Soñanez-Organis, Ruben Rodriguez, Jose A. Viscarra, Akira Nishiyama, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2013) 216 (15): 2870–2878.

https://doi.org/10.1242/jeb.081927

Published: 1 August 2013

View article titled, Prolonged fasting activates Nrf2 in post-weaned elephant seals

Journal Articles

Sex differences in fuel use and metabolism during development in fasting juvenile northern elephant seals

Elizabeth J. Kelso, Cory D. Champagne, Michael S. Tift, Dorian S. Houser, Daniel E. Crocker

J Exp Biol (2012) 215 (15): 2637–2645.

https://doi.org/10.1242/jeb.068833

Published: 1 August 2012

View article titled, Sex differences in fuel use and metabolism during development in fasting juvenile northern elephant seals

Journal Articles

Decreased expression of adipose CD36 and FATP1 are associated with increased plasma non-esterified fatty acids during prolonged fasting in northern elephant seal pups ( Mirounga angustirostris )

Jose Abraham Viscarra, José Pablo Vázquez-Medina, Ruben Rodriguez, Cory D. Champagne, Sean H. Adams, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2012) 215 (14): 2455–2464.

https://doi.org/10.1242/jeb.069070

Published: 15 July 2012

View article titled, Decreased expression of adipose CD36 and FATP1 are associated with increased plasma non-esterified fatty acids during prolonged fasting in northern elephant seal pups ( Mirounga angustirostris )

Journal Articles

Prolonged fasting increases purine recycling in post-weaned northern elephant seals

José Guadalupe Soñanez-Organis, José Pablo Vázquez-Medina, Tania Zenteno-Savín, Andres Aguilar, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2012) 215 (9): 1448–1455.

https://doi.org/10.1242/jeb.067173

Published: 1 May 2012

View article titled, Prolonged fasting increases purine recycling in post-weaned northern elephant seals

Journal Articles

Apnea stimulates the adaptive response to oxidative stress in elephant seal pups

José Pablo Vázquez-Medina, Tania Zenteno-Savín, Michael S. Tift, Henry Jay Forman, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2011) 214 (24): 4193–4200.

https://doi.org/10.1242/jeb.063644

Published: 15 December 2011

View article titled, Apnea stimulates the adaptive response to oxidative stress in elephant seal pups

Journal Articles

Northern elephant seals adjust gliding and stroking patterns with changes in buoyancy: validation of at-sea metrics of body density

Kagari Aoki, Yuuki Y. Watanabe, Daniel E. Crocker, Patrick W. Robinson, Martin Biuw, Daniel P. Costa, Nobuyuki Miyazaki, Mike A. Fedak, Patrick J. O. Miller

J Exp Biol (2011) 214 (17): 2973–2987.

https://doi.org/10.1242/jeb.055137

Published: 1 September 2011

View article titled, Northern elephant seals adjust gliding and stroking patterns with changes in buoyancy: validation of at-sea metrics of body density

Includes: Supplementary data

Journal Articles

Prolonged fasting increases glutathione biosynthesis in postweaned northern elephant seals

José Pablo Vázquez-Medina, Tania Zenteno-Savín, Henry Jay Forman, Daniel E. Crocker, Rudy M. Ortiz

J Exp Biol (2011) 214 (8): 1294–1299.

https://doi.org/10.1242/jeb.054320

Published: 15 April 2011

View article titled, Prolonged fasting increases glutathione biosynthesis in postweaned northern elephant seals

Journal Articles

Prolonged fasting does not increase oxidative damage or inflammation in postweaned northern elephant seal pups

José Pablo Vázquez-Medina, Daniel E. Crocker, Henry Jay Forman, Rudy M. Ortiz

J Exp Biol (2010) 213 (14): 2524–2530.

https://doi.org/10.1242/jeb.041335

Published: 15 July 2010

View article titled, Prolonged fasting does not increase oxidative damage or inflammation in postweaned northern elephant seal pups

Journal Articles

Hormonal regulation of glucose clearance in lactating northern elephant seals ( Mirounga angustirostris )

Melinda A. Fowler, Cory D. Champagne, Dorian S. Houser, Daniel E. Crocker

J Exp Biol (2008) 211 (18): 2943–2949.

https://doi.org/10.1242/jeb.018176

Published: 15 September 2008

View article titled, Hormonal regulation of glucose clearance in lactating northern elephant seals ( Mirounga angustirostris )

Journal Articles

Interpolation of animal tracking data in a fluid environment

Yann Tremblay, Scott A. Shaffer, Shannon L. Fowler, Carey E. Kuhn, Birgitte I. McDonald, Michael J. Weise, Charle-André Bost, Henri Weimerskirch, Daniel E. Crocker, Michael E. Goebel, Daniel P. Costa

J Exp Biol (2006) 209 (1): 128–140.

https://doi.org/10.1242/jeb.01970

Published: 1 January 2006

View article titled, Interpolation of animal tracking data in a fluid environment

Journal Articles

Stroke volume and cardiac output in juvenile elephant seals during forced dives

Sheila J. Thornton, Peter W. Hochachka, Daniel E. Crocker, Daniel P. Costa, Burney J. LeBoeuf, Daniel M. Spielman, Norbert J. Pelc

J Exp Biol (2005) 208 (19): 3637–3643.

https://doi.org/10.1242/jeb.01789

Published: 1 October 2005

View article titled, Stroke volume and cardiac output in juvenile elephant seals during forced dives

Includes: Multimedia, Supplementary data

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Intracellular negative feedback mechanisms in blubber and muscle moderate acute stress responses in fasting seals

Changes in apolipoprotein abundance dominate proteome responses to prolonged fasting in elephant seals

Repeated stimulation of the HPA axis alters white blood cell count without increasing oxidative stress or inflammatory cytokines in fasting elephant seal pups

Similar foraging energetics of two sympatric albatrosses despite contrasting life histories and wind-mediated foraging strategies

High fatty acid oxidation capacity and phosphorylation control despite elevated leak and reduced respiratory capacity in northern elephant seal muscle mitochondria

Elevated carboxyhemoglobin in a marine mammal, the northern elephant seal

Free-swimming northern elephant seals have low field metabolic rates that are sensitive to an increased cost of transport

Prolonged food deprivation increases mRNA expression of deiodinase 1 and 2, and thyroid hormone receptor β-1 in a fasting-adapted mammal

Activation of systemic, but not local, renin–angiotensin system is associated with upregulation of TNF-α during prolonged fasting in northern elephant seal pups

Prolonged fasting activates Nrf2 in post-weaned elephant seals

Sex differences in fuel use and metabolism during development in fasting juvenile northern elephant seals

Decreased expression of adipose CD36 and FATP1 are associated with increased plasma non-esterified fatty acids during prolonged fasting in northern elephant seal pups ( Mirounga angustirostris )

Prolonged fasting increases purine recycling in post-weaned northern elephant seals

Apnea stimulates the adaptive response to oxidative stress in elephant seal pups

Northern elephant seals adjust gliding and stroking patterns with changes in buoyancy: validation of at-sea metrics of body density

Prolonged fasting increases glutathione biosynthesis in postweaned northern elephant seals

Prolonged fasting does not increase oxidative damage or inflammation in postweaned northern elephant seal pups

Hormonal regulation of glucose clearance in lactating northern elephant seals ( Mirounga angustirostris )

Interpolation of animal tracking data in a fluid environment

Stroke volume and cardiac output in juvenile elephant seals during forced dives

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