B J Prendergast

Summary

Affiliation: The Ohio State University
Country: USA

Publications

  1. ncbi request reprint Periodic arousal from hibernation is necessary for initiation of immune responses in ground squirrels
    Brian J Prendergast
    Department of Psychology, The Ohio State University, Columbus, Ohio 43210, USA
    Am J Physiol Regul Integr Comp Physiol 282:R1054-62. 2002
  2. ncbi request reprint Photoperiod modulates the inhibitory effect of in vitro melatonin on lymphocyte proliferation in female Siberian hamsters
    B J Prendergast
    Department of Psychology and Neuroscience, The Ohio State University, Columbus 43210, USA
    J Biol Rhythms 16:224-33. 2001
  3. ncbi request reprint Photoperiodic polyphenisms in rodents: neuroendocrine mechanisms, costs, and functions
    B J Prendergast
    Department of Psychology, Ohio State University, Columbus, Ohio 43210, USA
    Q Rev Biol 76:293-325. 2001
  4. pmc Spontaneous "regression" of enhanced immune function in a photoperiodic rodent Peromyscus maniculatus
    B J Prendergast
    Department of Psychology, The Ohio State University, Townshend Hall, Columbus, OH 43210, USA
    Proc Biol Sci 268:2221-8. 2001
  5. ncbi request reprint Photoperiodic adjustments in immune function protect Siberian hamsters from lethal endotoxemia
    Brian J Prendergast
    Department of Psychology and Neuroscience, The Ohio State University, Columbus, OH 43210, USA
    J Biol Rhythms 18:51-62. 2003
  6. ncbi request reprint Photorefractoriness of immune function in male Siberian hamsters (Phodopus sungorus)
    B J Prendergast
    Departments of Psychology and Neuroscience, Ohio State University, Townshend Hall, Columbus, OH 43210, USA
    J Neuroendocrinol 14:318-29. 2002
  7. pmc Hypothalamic gene expression in reproductively photoresponsive and photorefractory Siberian hamsters
    Brian J Prendergast
    Departments of Psychology and Neuroscience, and Biochemistry and Medical Biochemistry and Neurobiotechnology Center, Ohio State University, Columbus, OH 43210, USA
    Proc Natl Acad Sci U S A 99:16291-6. 2002
  8. ncbi request reprint Photoperiod alters the time course of brain cyclooxygenase-2 expression in Siberian hamsters
    S D Bilbo
    Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
    J Neuroendocrinol 15:958-64. 2003
  9. ncbi request reprint Triggering of neuroendocrine refractoriness to short-day patterns of melatonin in Siberian hamsters
    B J Prendergast
    Department of Psychology, University of California at Berkeley, Berkeley, CA, USA
    J Neuroendocrinol 12:303-10. 2000
  10. ncbi request reprint Short day lengths enhance skin immune responses in gonadectomised Siberian hamsters
    B J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    J Neuroendocrinol 17:18-21. 2005

Detail Information

Publications36

  1. ncbi request reprint Periodic arousal from hibernation is necessary for initiation of immune responses in ground squirrels
    Brian J Prendergast
    Department of Psychology, The Ohio State University, Columbus, Ohio 43210, USA
    Am J Physiol Regul Integr Comp Physiol 282:R1054-62. 2002
    ..Periodic arousals may activate a dormant immune system, which can then combat pathogens that may have been introduced immediately before or during hibernation...
  2. ncbi request reprint Photoperiod modulates the inhibitory effect of in vitro melatonin on lymphocyte proliferation in female Siberian hamsters
    B J Prendergast
    Department of Psychology and Neuroscience, The Ohio State University, Columbus 43210, USA
    J Biol Rhythms 16:224-33. 2001
    ..These data support the hypothesis that melatonin acts directly on lymphocytes from long-day hamsters to suppress blastogenesis...
  3. ncbi request reprint Photoperiodic polyphenisms in rodents: neuroendocrine mechanisms, costs, and functions
    B J Prendergast
    Department of Psychology, Ohio State University, Columbus, Ohio 43210, USA
    Q Rev Biol 76:293-325. 2001
    ..Several nonexclusive hypotheses are proposed to account for the maintenance of nonresponsive individuals in wild rodent populations...
  4. pmc Spontaneous "regression" of enhanced immune function in a photoperiodic rodent Peromyscus maniculatus
    B J Prendergast
    Department of Psychology, The Ohio State University, Townshend Hall, Columbus, OH 43210, USA
    Proc Biol Sci 268:2221-8. 2001
    ..The results suggest that formal similarities and, possibly, common substrates exist among the photoperiodic timekeeping mechanisms that regulate seasonal transitions in reproductive and immune function...
  5. ncbi request reprint Photoperiodic adjustments in immune function protect Siberian hamsters from lethal endotoxemia
    Brian J Prendergast
    Department of Psychology and Neuroscience, The Ohio State University, Columbus, OH 43210, USA
    J Biol Rhythms 18:51-62. 2003
    ..Adaptation to short days induces changes in immune parameters that affect survival in the face of immune challenges...
  6. ncbi request reprint Photorefractoriness of immune function in male Siberian hamsters (Phodopus sungorus)
    B J Prendergast
    Departments of Psychology and Neuroscience, Ohio State University, Townshend Hall, Columbus, OH 43210, USA
    J Neuroendocrinol 14:318-29. 2002
    ..Together, these data indicate that, similar to the reproductive system, the immune system of male Siberian hamsters exhibits refractoriness to short days...
  7. pmc Hypothalamic gene expression in reproductively photoresponsive and photorefractory Siberian hamsters
    Brian J Prendergast
    Departments of Psychology and Neuroscience, and Biochemistry and Medical Biochemistry and Neurobiotechnology Center, Ohio State University, Columbus, OH 43210, USA
    Proc Natl Acad Sci U S A 99:16291-6. 2002
    ....
  8. ncbi request reprint Photoperiod alters the time course of brain cyclooxygenase-2 expression in Siberian hamsters
    S D Bilbo
    Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
    J Neuroendocrinol 15:958-64. 2003
    ..We conclude that short photoperiods significantly altered the time course of central COX-2 protein expression in hamsters in a manner consistent with reduced fever duration...
  9. ncbi request reprint Triggering of neuroendocrine refractoriness to short-day patterns of melatonin in Siberian hamsters
    B J Prendergast
    Department of Psychology, University of California at Berkeley, Berkeley, CA, USA
    J Neuroendocrinol 12:303-10. 2000
    ..In nature all hamsters are exposed to short days for at least 25 weeks, ensuring refractoriness in most individuals...
  10. ncbi request reprint Short day lengths enhance skin immune responses in gonadectomised Siberian hamsters
    B J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    J Neuroendocrinol 17:18-21. 2005
    ..The data suggest that contemporary gonadal hormone secretion is neither necessary, nor sufficient to mediate the effects of short photoperiods on skin immune function...
  11. pmc Establishment and persistence of photoperiodic memory in hamsters
    B J Prendergast
    Department of Psychology, University of California, Berkeley, CA 94720, USA
    Proc Natl Acad Sci U S A 97:5586-91. 2000
    ..These findings indicate that hamsters are influenced only by relatively recent day lengths and melatonin signals and ignore earlier ones that might cause them to misinterpret the salience of current day lengths...
  12. ncbi request reprint Frequency coding of melatonin signals sufficient to induce testicular growth in photoregressed Siberian hamsters
    B J Prendergast
    Department of Psychology, University of California at Berkeley, 94720 1650, USA
    J Neuroendocrinol 11:237-41. 1999
    ..The neuroendocrine system responsive to melatonin does not bridge intervals of more than a day in any of several combinations and apparently is frequency-coded for maximal responsiveness to daily signals...
  13. pmc Reproductive responses to photoperiod persist in olfactory bulbectomized Siberian hamsters (Phodopus sungorus)
    Brian J Prendergast
    Department of Psychology, The University of Chicago, Chicago, IL 60637, USA
    Behav Brain Res 198:159-64. 2009
    ..In marked contrast to Syrian hamsters, the olfactory bulbs of Siberian hamsters play essentially no role in the modulation of tonic gonadotrophin production or gonadotrophin responses to photoperiod...
  14. ncbi request reprint Effects of photoperiod history on immune responses to intermediate day lengths in Siberian hamsters (Phodopus sungorus)
    Brian J Prendergast
    Departments of Psychology and Neuroscience, The Ohio State University, Columbus, OH 43210, USA
    J Neuroimmunol 149:31-9. 2004
    ..The data suggest that photoperiodic mechanisms that enhance and suppress several aspects of immunity in young-adult hamsters are not responsive to prenatally communicated photoperiod history information...
  15. ncbi request reprint Gonadal hormone-dependent and -independent regulation of immune function by photoperiod in Siberian hamsters
    Brian J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    Am J Physiol Regul Integr Comp Physiol 294:R384-92. 2008
    ..Thus, photoperiod affects the immune system and neural-immune interactions underlying sickness behaviors via gonadal hormone-dependent and -independent mechanisms...
  16. doi request reprint Photoperiod history differentially impacts reproduction and immune function in adult Siberian hamsters
    Brian J Prendergast
    Department of Psychology, University of Chicago, Illinois, USA
    J Biol Rhythms 24:509-22. 2009
    ..Prior photoperiod exposure has an enduring impact on the ability of the immune system to respond to subsequent changes in day length...
  17. pmc Behavioral tolerance to endotoxin is enhanced by adaptation to winter photoperiods
    Brian J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    Psychoneuroendocrinology 33:540-5. 2008
    ..During winter, enhancements in behavioral endotoxin tolerance may conserve energy and facilitate survival in the face of energetically challenging conditions...
  18. ncbi request reprint Photoperiodic regulation of circulating leukocytes in juvenile Siberian hamsters: mediation by melatonin and testosterone
    Brian J Prendergast
    Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
    J Biol Rhythms 18:473-80. 2003
    ..These data indicate that juvenile Siberian hamsters are immunologically responsive to photoperiod and that the leukocyte responses to day length are the result of melatonin-mediated effects of photoperiod on testicular hormone secretion...
  19. ncbi request reprint Peripubertal immune challenges attenuate reproductive development in male Siberian hamsters (Phodopus sungorus)
    Brian J Prendergast
    Departments of Psychology and Neuroscience, The Ohio State University, Columbus, Ohio 43210, USA
    Biol Reprod 70:813-20. 2004
    ..The data also underscore the importance of seasonally dependent life history factors in assessing physiological tradeoffs...
  20. ncbi request reprint Photoperiod and stress affect wound healing in Siberian hamsters
    Steven G Kinsey
    Departments of Psychology and Neuroscience, The Ohio State University, Columbus, OH 43210, USA
    Physiol Behav 78:205-11. 2003
    ..In nature, enhanced wound healing coincident with the breeding season and territorial defense may be adaptive...
  21. pmc Winter day lengths enhance T lymphocyte phenotypes, inhibit cytokine responses, and attenuate behavioral symptoms of infection in laboratory rats
    Brian J Prendergast
    Department of Psychology, Institute for Mind and Biology, University of Chicago, 940 E 57th Street, Chicago, IL 60637, USA
    Brain Behav Immun 21:1096-108. 2007
    ..Seasonal changes in the host immune system, endocrine system, and behavior may contribute to the seasonal variability in disease outcomes, even in reproductively non-photoperiodic mammals...
  22. ncbi request reprint Internalization of seasonal time
    Brian J Prendergast
    Department of Psychology, Institute for Mind and Biology, University of Chicago, 940 E 57th St, Chicago, IL 60637, USA
    Horm Behav 48:503-11. 2005
    ....
  23. ncbi request reprint Affective responses to changes in day length in Siberian hamsters (Phodopus sungorus)
    Brian J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    Psychoneuroendocrinology 30:438-52. 2005
    ..Together the results indicate that adaptation to short photoperiods is associated with increased expression of anxiety- and depressive-like behaviors relative to those observed under LD photoperiod conditions...
  24. ncbi request reprint Genetic analyses of a seasonal interval timer
    Brian J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    J Biol Rhythms 19:298-311. 2004
    ..Balancing selection in environments where the onset of spring conditions varies from year to year could maintain genetic variance in interval timers and yield interval timers tuned to the local environment...
  25. ncbi request reprint Photoperiod controls the induction, retention, and retrieval of antigen-specific immunological memory
    Brian J Prendergast
    Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
    Am J Physiol Regul Integr Comp Physiol 286:R54-60. 2004
    ..The data suggest that short photoperiods have enduring effects on immune responsiveness and on the establishment and retention of immunological memory...
  26. ncbi request reprint Affective and adrenocorticotrophic responses to photoperiod in Wistar rats
    B J Prendergast
    Department of Psychology, University of Chicago, Chicago, IL 60637, USA
    J Neuroendocrinol 20:261-7. 2008
    ..Standard laboratory husbandry practices (exposure to a 12 : 12 h light/dark cycle) may inadvertently deliver a chronic background depressive and anxiogenic stimulus...
  27. pmc Peripheral tumors induce depressive-like behaviors and cytokine production and alter hypothalamic-pituitary-adrenal axis regulation
    Leah M Pyter
    Department of Psychology, Institute for Mind and Biology, University of Chicago, 940 East 57th Street, Chicago, IL 60637, USA
    Proc Natl Acad Sci U S A 106:9069-74. 2009
    ..The results establish that tumors alone are sufficient to trigger changes in emotional behaviors. Dampened glucocorticoid responses to stressors may exacerbate the deleterious effects of tumor-induced cytokines on affective states...
  28. pmc Mammary tumors induce select cognitive impairments
    Leah M Pyter
    Department of Psychology, Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, USA
    Brain Behav Immun 24:903-7. 2010
    ..Together the results indicate that peripheral tumors alone are sufficient to induce increases in hippocampal cytokine expression and select deficits in hippocampal-dependent memory tasks...
  29. ncbi request reprint Temporal integration of melatonin infusion duration: signal averaging versus frequency dependence
    Jolanta M Piatkowska
    Department of Psychology, University of California, San Diego, CA, USA
    J Pineal Res 35:91-7. 2003
    ..In the majority (six of seven) of infusion regimes, reproductive responses to chimeric patterns of long and short melatonin signals were compatible with a simple signal-averaging mechanism...
  30. ncbi request reprint Form over function?
    Randy J Nelson
    Department of Psychology, The Ohio State University, Columbus 43210, USA
    J Biol Rhythms 17:406-9; discussion 410-2. 2002
  31. ncbi request reprint Social facilitation of wound healing
    Courtney E Detillion
    Department of Psychology, The Ohio State University, 01 Townsend Hall, 1885 Neil Avenue, Columbus, OH 43210 USA
    Psychoneuroendocrinology 29:1004-11. 2004
    ..The data imply that social isolation impairs wound healing, whereas OT treatment may ameliorate some effects of social isolation on health...
  32. ncbi request reprint Melatonin acts at the suprachiasmatic nucleus to attenuate behavioral symptoms of infection
    David A Freeman
    Department of Biology, University of Memphis, Memphis, TN, USA
    Behav Neurosci 121:689-97. 2007
    ....
  33. pmc Photoperiodic regulation of behavioral responsiveness to proinflammatory cytokines
    Jarvi C Wen
    Department of Psychology and Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, United States
    Physiol Behav 90:717-25. 2007
    ....
  34. doi request reprint Photoperiodic regulation of behavioral responses to bacterial and viral mimetics: a test of the winter immunoenhancement hypothesis
    Scott R Baillie
    Department of Psychology and Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, USA
    J Biol Rhythms 23:81-90. 2008
    ..Energetically costly behavioral responses to several distinct classes of infectious organisms are attenuated in anticipation of winter. The data are not consistent with a pathogen-specific seasonal modulation of innate immune responses...
  35. pmc Pineal-dependent and -independent effects of photoperiod on immune function in Siberian hamsters (Phodopus sungorus)
    Jarvi C Wen
    Department of Psychology and Institute for Mind and Biology, University of Chicago, Chicago, IL 60637, USA
    Horm Behav 51:31-9. 2007
    ..The pineal gland is required for photoperiodic regulation of circulating leukocytes and neural-immune interactions that mediate select aspects of sickness behaviors...
  36. ncbi request reprint Exogenous T3 mimics long day lengths in Siberian hamsters
    David A Freeman
    Department of Biology, University of Memphis, Memphis, Tennessee 38152 3540, USA
    Am J Physiol Regul Integr Comp Physiol 292:R2368-72. 2007
    ..These results suggest that T3 mimics long day exposure in Siberian hamsters and may serve as an intermediate step between the Mel rhythm and the reproductive response...