Clinical TrialID 762
The Effect of Gojiberry Intake (Lycium Barbarium) on Macular Function
NCT03983525
Macular Pigment Optical Density
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Record Fields
Scalar fields from the final clinical_trial record.
- Clinical Trial Id
- 762
- Evidence Id
- 762
- Core Evidence Id
- 762
- Source Clinical Trial Id
- 745
- Herb2 Clinical Trial Id
- HBCT000745
- Nct Id
- NCT03983525
- Title
- The Effect of Gojiberry Intake (Lycium Barbarium) on Macular Function
- Status
- Completed
- Phase
- Study Result
- No
- Study Condition
- Macular Pigment Optical Density
- Study Type
- Interventional
- Study Design
- Allocation: RANDOMIZED|Intervention Model: PARALLEL|Masking: NONE|Primary Purpose: PREVENTION
- Intervention
- DIETARY_SUPPLEMENT: Goji berry|DIETARY_SUPPLEMENT: Lutein + zeaxanthin supplementation
- Intervention Allocation
- Randomized
- Intervention Model
- Parallel
- Intervention Mask
- Intervention Purpose
- Prevention
- Gender
- All
- Age
- Adult, Older_Adult
- Enrollment
- 31
- Outcome Measure
- Macular pigment ocular density (MPOD), MPOD measurement - MPOD will be assessed by the psychophysical method of HFP technology (Macular Metrics, Providence, RI). Participants will watch a 20 minutes long video of a description of HFP. After adapting to the dark for seven minutes, participants will be asked to rest their head on a chin rest and look at a blue background field for three minutes. Prior to each test, the light intensity from each wavelength will be calibrated with a photodiode. The flicker frequency is selected for each subject based on preliminary tests of flicker sensitivity. The observer's task is to eliminate or minimize the flicker by turning a dial that changes the intensity of the 460-nm light. They will be asked to do this when looking directly at the flickering light and also when looking at a fixation point so that the stimulus can be presented in the periphery., 90 days
- Sponsor Collaborator
- University of California, Davis
- Funded By
- OTHER
- Location
- Regal Human Nutrition Research Center, Davis, California, 95616, United States
- Other Id
- 1220178
- Start Date
- 2019-06-10
- Primary Completion Date
- 2020-05-28
- Completion Date
- 2020-06-15
- First Posted
- 2019-06-12
- Results First Posted
- Last Update Posted
- 2020-07-23
- Study Document
- Study Url
- https://clinicaltrials.gov/study/NCT03983525
- Title Cn
- Title En
- The Effect of Gojiberry Intake (Lycium Barbarium) on Macular Function
- Bilingual Status
- semi_complete