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The Circadian System Contributes to Apnea Lengthening across the Night in Obstructive Sleep Apnea.

Butler MP, Smales C, Wu H, Hussain MV, Mohamed YA, Morimoto M, Shea SA.

Sleep. 2015 Mar 28. pii: sp-00796-14. [Epub ahead of print]


Suprachiasmatic nucleus as the site of androgen action on circadian rhythms.

Model Z, Butler MP, LeSauter J, Silver R.

Horm Behav. 2015 May 24;73:1-7. doi: 10.1016/j.yhbeh.2015.05.007. [Epub ahead of print]


Dorsomedial hypothalamic lesions counteract decreases in locomotor activity in male Syrian hamsters transferred from long to short day lengths.

Jarjisian SG, Butler MP, Paul MJ, Place NJ, Prendergast BJ, Kriegsfeld LJ, Zucker I.

J Biol Rhythms. 2015 Feb;30(1):42-52. doi: 10.1177/0748730414561546. Epub 2014 Dec 15.


The role of the circadian system in fractal neurophysiological control.

Pittman-Polletta BR, Scheer FA, Butler MP, Shea SA, Hu K.

Biol Rev Camb Philos Soc. 2013 Nov;88(4):873-94. doi: 10.1111/brv.12032. Epub 2013 Apr 10.


Twelve-hour days in the brain and behavior of split hamsters.

Butler MP, Rainbow MN, Rodriguez E, Lyon SM, Silver R.

Eur J Neurosci. 2012 Aug;36(4):2556-66. doi: 10.1111/j.1460-9568.2012.08166.x. Epub 2012 Jun 18.


Dose-dependent effects of androgens on the circadian timing system and its response to light.

Butler MP, Karatsoreos IN, LeSauter J, Silver R.

Endocrinology. 2012 May;153(5):2344-52. doi: 10.1210/en.2011-1842. Epub 2012 Apr 4.


Food anticipation depends on oscillators and memories in both body and brain.

Silver R, Balsam PD, Butler MP, LeSauter J.

Physiol Behav. 2011 Sep 26;104(4):562-71. doi: 10.1016/j.physbeh.2011.05.034. Epub 2011 Jun 12. Review.


Targeted mutation of the calbindin D 28k gene selectively alters nonvisual photosensitivity.

Butler MP, LeSauter J, Sichel AN, Silver R.

Eur J Neurosci. 2011 Jun;33(12):2299-307. doi: 10.1111/j.1460-9568.2011.07689.x. Epub 2011 May 5.


Androgens modulate structure and function of the suprachiasmatic nucleus brain clock.

Karatsoreos IN, Butler MP, Lesauter J, Silver R.

Endocrinology. 2011 May;152(5):1970-8. doi: 10.1210/en.2010-1398. Epub 2011 Mar 1.


Divergent photic thresholds in the non-image-forming visual system: entrainment, masking and pupillary light reflex.

Butler MP, Silver R.

Proc Biol Sci. 2011 Mar 7;278(1706):745-50. doi: 10.1098/rspb.2010.1509. Epub 2010 Sep 22.


Seasonal regulation of reproduction: altered role of melatonin under naturalistic conditions in hamsters.

Butler MP, Turner KW, Park JH, Schoomer EE, Zucker I, Gorman MR.

Proc Biol Sci. 2010 Sep 22;277(1695):2867-74. doi: 10.1098/rspb.2010.0396. Epub 2010 May 5.


Basis of robustness and resilience in the suprachiasmatic nucleus: individual neurons form nodes in circuits that cycle daily.

Butler MP, Silver R.

J Biol Rhythms. 2009 Oct;24(5):340-52. doi: 10.1177/0748730409344800. Review.


Seasonal pelage changes are synchronized by simulated natural photoperiods in Siberian hamsters (Phodopus sungorus).

Butler MP, Zucker I.

J Exp Zool A Ecol Genet Physiol. 2009 Aug 1;311(7):475-82. doi: 10.1002/jez.544.


Infrequent low dose testosterone treatment maintains male sexual behavior in Syrian hamsters.

Piekarski DJ, Routman DM, Schoomer EE, Driscoll JR, Park JH, Butler MP, Zucker I.

Horm Behav. 2009 Jan;55(1):182-9. doi: 10.1016/j.yhbeh.2008.10.003. Epub 2008 Oct 18.


A melatonin-independent seasonal timer induces neuroendocrine refractoriness to short day lengths.

Butler MP, Turner KW, Zucker I.

J Biol Rhythms. 2008 Jun;23(3):242-51. doi: 10.1177/0748730408317135.


Circadian rhythms of photorefractory siberian hamsters remain responsive to melatonin.

Butler MP, Paul MJ, Turner KW, Park JH, Driscoll JR, Kriegsfeld LJ, Zucker I.

J Biol Rhythms. 2008 Apr;23(2):160-9. doi: 10.1177/0748730407312949.


Photoperiodic and hormonal influences on fur density and regrowth in two hamster species.

Paul MJ, George NT, Zucker I, Butler MP.

Am J Physiol Regul Integr Comp Physiol. 2007 Dec;293(6):R2363-9. Epub 2007 Sep 26.


Timing of puberty and synchronization of seasonal rhythms by simulated natural photoperiods in female Siberian hamsters.

Butler MP, Trumbull JJ, Turner KW, Zucker I.

Am J Physiol Regul Integr Comp Physiol. 2007 Jul;293(1):R413-20. Epub 2007 May 9.


Short duration testosterone infusions maintain male sex behavior in Syrian hamsters.

Park JH, Paul MJ, Butler MP, Villa P, Burke M, Kim DP, Routman DM, Schoomer EE, Zucker I.

Horm Behav. 2007 Aug;52(2):169-76. Epub 2007 Mar 27.


Simulated natural day lengths synchronize seasonal rhythms of asynchronously born male Siberian hamsters.

Butler MP, Turner KW, Park JH, Butler JP, Trumbull JJ, Dunn SP, Villa P, Zucker I.

Am J Physiol Regul Integr Comp Physiol. 2007 Jul;293(1):R402-12. Epub 2007 Apr 11.

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