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Related Concept Videos

Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
Circadian Rhythms and Gene Regulation02:19

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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
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Multiscale complexity in the mammalian circadian clock.

Yr Yamada1, Db Forger

  • 1Department of Mathematics, University of Michigan, Ann Arbor, MI 48109, United States.

Current Opinion in Genetics & Development
|October 12, 2010
PubMed
Summary

Systems biology uses modeling to understand complex behaviors in mammalian circadian systems. Future research needs to integrate models across different scales for better insights into timekeeping mechanisms.

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Area of Science:

  • Systems biology
  • Mammalian circadian rhythms
  • Computational modeling

Background:

  • The circadian system in mammals exhibits complex behaviors arising from interactions between genes and proteins.
  • This system operates across multiple biological scales, from molecular to behavioral levels.
  • Recent discoveries have generated extensive data across these scales.

Purpose of the Study:

  • To review advances in modeling the mammalian circadian system.
  • To identify promising research directions for future studies.
  • To discuss the types of models and techniques needed for cross-scale integration.

Main Methods:

  • Review of recent advances in systems biology and circadian rhythm research.
  • Analysis of challenges in modeling across spatial and temporal scales.
  • Discussion of modeling approaches (simple vs. detailed) and novel techniques.

Main Results:

  • Modeling can significantly advance understanding within individual scales of the circadian system.
  • A critical need exists for integrating models across multiple spatial and temporal scales.
  • Specific modeling approaches and new techniques are required to address cross-scale challenges.

Conclusions:

  • Bridging multiple scales in modeling the suprachiasmatic nucleus (SCN) network is essential for future progress.
  • Further development of modeling strategies is required to fully understand mammalian timekeeping.
  • Interdisciplinary approaches combining data and modeling across scales will drive future discoveries.