Circadian rhythms-Male

Katherine M. Hatcher, Megan M. Mahoney

Research output: Chapter in Book/Report/Conference proceedingChapter


Biological rhythms, including circadian rhythms (daily, 24-h rhythms), are critical for successful reproduction. Daily rhythms are regulated by clock genes and clock proteins expressed in the master circadian clock located in the hypothalamus. Rhythms have been found in the expression of clock genes and proteins in male reproductive tissues, sex steroid hormones and enzymes, and locomotor and reproductive behaviors, with peaks and troughs throughout the day. In this chapter, we will discuss this recent work, as well as explore areas of future research.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Reproduction
Number of pages6
ISBN (Electronic)9780128151457
StatePublished - Jan 1 2018


  • Behavior
  • Circadian rhythms
  • Clock genes
  • Epididymis
  • Hypothalamic-pituitary-gonadal axis
  • Locomotor behavior
  • Prostate
  • Spermatids
  • Testes
  • Testosterone
  • Tubules
  • Vas deferens

ASJC Scopus subject areas

  • General Medicine


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