Status:

COMPLETED

Immediate Effect of Light on Reproductive Hormones in Women: a Role of the Spectrum

Lead Sponsor:

Russian Academy of Medical Sciences

Conditions:

Healthy

Eligibility:

FEMALE

18-45 years

Phase:

NA

Brief Summary

The study investigates an acute effect of white-appearing LED light (with a peak in blue portion) vs. red LED light of similar irradiance on reproductive hormones in healthy women.

Detailed Description

Sixteen healthy women came to the laboratory at 7:30 (wearing dark goggles) at two occasions (separated by 2-3 days, first time - at the 3rd-8th day of their menstrual cycle) to be exposed for 45' to ...

Eligibility Criteria

Inclusion

  • age 18-45 y
  • normal (21-35 days) menstrual cycle
  • good and stable general health
  • normal body weight index 18.5-29.9
  • normal sleep-wake regimen
  • living close to the laboratory (\<7' by walk)
  • "good"cubital veins

Exclusion

  • difficulty to contact
  • travel over several time zones during last month
  • medications known to interfere with hormone release

Key Trial Info

Start Date :

March 1 2009

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 1 2009

Estimated Enrollment :

16 Patients enrolled

Trial Details

Trial ID

NCT00467805

Start Date

March 1 2009

End Date

October 1 2009

Last Update

April 9 2010

Active Locations (1)

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1

Institute of Internal Medicine SB RAMS

Novosibirsk, Russia, 630089