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IRCT20161112030846N2 IRCT 2018-06-03 Bagheiat-allah University of Medical Sciences Determining the effect of dim regulation by devices radiating according to natural circadian sunlight shifts Effect of Radiance-Dimmer Devices Simulating Natural Sunlight Rhythm on the Plasma Melatonin Levels and Anxiety and Depression Scores of the Submarine Personnel 2016-01-21 anticipated 52 Complete https://irct.ir/trial/24390 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Randomization description: The members of the two bunch of staff were randomly divided into two experimental and control groups. Participants in the two groups did not differ significantly in terms of demographic characteristics such as gender, age, and educational level. In each group, 26 patients were tested and controlled. N/A Anxiety and Depressive. Intervention 1: experimental group, In order to lighting the environment, 4 automatic optic devices were installed at the halls where personnel from the case group were working in, containing lamps expelling sunlight and moonlit with radiant intensity were 400 lox. These optic devices were automatic and turned on since 6 am automatically , which were approximate time of sunrise, and in a modal that conformities with increment of natural radiance of sunlight, 68 lox added to their radiant intensity every hour, so that radiant intensity of these optic regulators reach to its radiant proxy at 12:00 o’clock which means 400 lox for each regulator device, and subsequently reducing their radiant intensity at a rate about 68 lox an hour, and at a result, the light would have been turned off at 6 o’clock PM, almost conformed with approximate time of the sunset. Intervention 2: Control group: the control group continued their experience with constant artificial light during the same time period. After this time, the study variables were reanalyzed and compared to the baseline values. Yes - There is a plan to make this available What will be shared: Article is publishedWill be published in paper. When: 2018 To whom: Researchers and academics Conditions: It is possible to mention the source of the research article Where to obtain: An article that will be published will be available. How to obtain: An article that will be published will be available. Comments:
public Khodabakhsh Ahmadi
Sheikhbahaie St. Mollasadra Ave.
tehran Iran (Islamic Republic of) 1435916471 +98 21 8248 2712 kh_ahmady@bmsu.ac.ir Bagheiat-allah University of Medical Sciences scientific Khodabakhsh Ahmadi
Sheikhbahaie St. Mollasadra Ave.
Tehran Iran (Islamic Republic of) 1435916471 +98 21 8248 2712 kh_ahmady@bmsu.ac.ir Bagheiat-allah University of Medical Sciences Iran (Islamic Republic of) Underground employees who use artificial light only during the period of their presence No specific disease or chronic physical and mental illness Male Have at least 21 and a maximum of 30 years 21 years 30 years Male Taking medications that could affect serum melatonin levels including Having depression or any other major psychiatric disorders on DSM IV Having significant acute or chronic systemic disorders including type I diabetes mellitus, uncontrolled thyroid disorders, kidney/prostate/bladder problems which cause excessive urination, congestive heart failure, angina pectoris or other major cardiovascular disorders, hepatitis, asthma or severe respiratory allergies, stroke, Parkinson’s disease, Alzheimer’s disease, schizophrenia, epilepsy, oncologic disorders if less than 1 year since end of treatment, or chronic infections Use of hypnotics, melatonin, stimulants, or other medications that may affect melatonin levels (e.g. β blockers, drugs that affect prostaglandin synthesis, or drugs that activate hepatic melatonin metabolism) and unwillingness or inability to discontinue the occasional use of these medications for at least 4 weeks before beginning of the study F41.1 Generalized anxiety disorder Prevention Prevention experimental group, In order to lighting the environment, 4 automatic optic devices were installed at the halls where personnel from the case group were working in, containing lamps expelling sunlight and moonlit with radiant intensity were 400 lox. These optic devices were automatic and turned on since 6 am automatically , which were approximate time of sunrise, and in a modal that conformities with increment of natural radiance of sunlight, 68 lox added to their radiant intensity every hour, so that radiant intensity of these optic regulators reach to its radiant proxy at 12:00 o’clock which means 400 lox for each regulator device, and subsequently reducing their radiant intensity at a rate about 68 lox an hour, and at a result, the light would have been turned off at 6 o’clock PM, almost conformed with approximate time of the sunset. Control group: the control group continued their experience with constant artificial light during the same time period. After this time, the study variables were reanalyzed and compared to the baseline values. Anxiety. Timepoint: 3 TIMES: Initiation, Middle and End of the study period. Method of measurement: Cattell’s Anxiety Scale Questionnaire (IPAT). Depression. Timepoint: 3 TIMES: Initiation, Middle and End of the study period. Method of measurement: Minnesota Multiple Personality Inventory (MMPI). Plasma melatonin hormone. Timepoint: 3 TIMES: Initiation, Middle and End of the study period. Method of measurement: Blood examination. Bagheiat-allah University of Medical Sciences Approved 2017-02-15 Ethics committee of Baqiyatallah University of Medical Sciences SheikhBahaie St. Mollasadra Ave. Tehran Tehran Iran (Islamic Republic of)