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Insects as novel models for research in chronobiology
1Livestock Insects Laboratory, AEQI, Agricultural Research Service, USDA, Beltsville, Maryland.
Chronobiologia
|October 1, 1989
Summary
Insects offer a viable model for chronopharmacology research, demonstrating rhythms in lifespan and responses to light. These findings support using insects to study biological timing across species.
Area of Science:
- Chronobiology
- Insect Physiology
- Pharmacology
Background:
- A need exists for accessible and effective models in chronopharmacological research.
- Insects are inexpensive, short-lived, and publicly acceptable models for biological studies.
Purpose of the Study:
- To investigate the feasibility of using insects as models for chronopharmacological research.
- To identify potential biological rhythms in insects relevant to chronopharmacology.
Main Methods:
- Conducted a 10-year study in cooperation with Franz Halberg.
- Examined lifespan differences in codling moths and face flies under various photoperiodic regimens.
- Investigated responses to photoperiodic shifts for circaseptan and approximately 3-day rhythms.
- Assessed melatonin rhythms in face fly heads.
Main Results:
- Lifespan varied significantly in codling moths and face flies based on photoperiodic conditions.
- Evidence of circaseptan and approximately 3-day rhythms in response to photoperiod shifts was observed.
- A rhythm in melatonin was detected in the heads of face flies.
Conclusions:
- Insects serve as effective and valid models for chronopharmacological research.
- Observed insect rhythms align with findings in mammals and unicellular organisms.
- Biochemical and behavioral parallels between insects and other animals can be established for chronopharmacology.