Molecular origin of the kidney clock

Area of Science:

• Physiology
• Developmental Biology
• Chronobiology

Background:

• A functional kidney circadian clock regulates renal function, blood pressure, and sodium balance.
• The precise timing of the kidney clock's initiation during development remains unknown.

Purpose of the Study:

• To determine when the molecular machinery of the kidney circadian clock begins to function during fetal development.

Main Methods:

• Investigated the expression and oscillation of core circadian clock genes in the late fetal kidney.

Main Results:

• Demonstrated the presence and rhythmic oscillation of key circadian clock components in the late fetal kidney.
• Established that the endogenous molecular machinery of the circadian clock is active in the late fetal kidney.

Conclusions:

• The kidney circadian clock initiates its function during late fetal development.
• These findings provide insights into the early-life regulation of homeostasis and renal function.