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Rudy M. Ortiz
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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
Journal: Journal of Experimental Biology
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
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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
Journal: Journal of Experimental Biology
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
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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
Journal: Journal of Experimental Biology
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
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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
Journal: Journal of Experimental Biology
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 )
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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
Journal: Journal of Experimental Biology
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
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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
Journal: Journal of Experimental Biology
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
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Journal Articles

Antioxidant capacity develops with maturation in the deep-diving hooded seal

José Pablo Vázquez-Medina, José Guadalupe Soñanez-Organis, Jennifer M. Burns, Tania Zenteno-Savín, Rudy M. Ortiz
Journal: Journal of Experimental Biology
J Exp Biol (2011) 214 (17): 2903–2910.
https://doi.org/10.1242/jeb.057935
Published: 1 September 2011
View article titled, Antioxidant capacity develops with maturation in the deep-diving hooded seal
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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
Journal: Journal of Experimental Biology
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
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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
Journal: Journal of Experimental Biology
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
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Journal Articles

Acutely elevated vasopressin increases circulating concentrations of cortisol and aldosterone in fasting northern elephant seal ( Mirounga angustirostris ) pups

Rudy M. Ortiz, Charles E. Wade, C. Leo Ortiz, Frank Talamantes
Journal: Journal of Experimental Biology
J Exp Biol (2003) 206 (16): 2795–2802.
https://doi.org/10.1242/jeb.00485
Published: 15 August 2003
View article titled, Acutely elevated vasopressin increases circulating concentrations of cortisol and aldosterone in fasting northern elephant seal ( Mirounga angustirostris ) pups
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Journal Articles

Osmoregulation in Marine Mammals

Rudy M. Ortiz
Journal: Journal of Experimental Biology
J Exp Biol (2001) 204 (11): 1831–1844.
https://doi.org/10.1242/jeb.204.11.1831
Published: 1 June 2001
View article titled, Osmoregulation in Marine Mammals
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Journal Articles

Thyroid Hormone Concentrations In Captive And Free-Ranging West Indian Manatees ( Trichechus Manatus )

Rudy M. Ortiz, Duncan S. Mackenzie, Graham A. J. Worthy
Journal: Journal of Experimental Biology
J Exp Biol (2000) 203 (23): 3631–3637.
https://doi.org/10.1242/jeb.203.23.3631
Published: 1 December 2000
View article titled, Thyroid Hormone Concentrations In Captive And Free-Ranging West Indian Manatees ( Trichechus Manatus )
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Journal Articles

Estimation of water turnover rates of captive West Indian manatees ( Trichechus manatus ) held in fresh and salt water

Rudy M. Ortiz, Graham A. J. Worthy, Floyd M. Byers
Journal: Journal of Experimental Biology
J Exp Biol (1999) 202 (1): 33–38.
https://doi.org/10.1242/jeb.202.1.33
Published: 1 January 1999
View article titled, Estimation of water turnover rates of captive West Indian manatees ( Trichechus manatus ) held in fresh and salt water
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