Dietary Oxalate and Immune Cell Function
Purpose
The purpose of this study is to evaluate mitochondrial function in white blood cells and platelets from healthy individuals following dietary oxalate intake.
Condition
- Kidney Stone
Eligibility
- Eligible Ages
- Between 18 Years and 70 Years
- Eligible Genders
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- Mentally competent adults who are able to read and comprehend the consent form, written in English - Male or Female - Age 18 to 70 years - Non-tobacco users - BMI between 19 and 27 - Willingness to abstain from vigorous exercise during study period - Normal blood comprehensive metabolic panel
Exclusion Criteria
- Mentally incompetent adults who are unable to read or comprehend the consent form, written in English - Pregnant females - Active medical problems - History of kidney stones - Any medical disorder that could influence absorption or excretion of oxalate - BMI less than 19 or greater than 27 - Tobacco users - Current use of medications or dietary supplements
Study Design
- Phase
- N/A
- Study Type
- Interventional
- Allocation
- Non-Randomized
- Intervention Model
- Parallel Assignment
- Primary Purpose
- Treatment
- Masking
- None (Open Label)
Arm Groups
Arm | Description | Assigned Intervention |
---|---|---|
Experimental 3d Diet+Spinach Smoothie+Breakfast |
3 days of prepared meals with fasting on the final day. On final day, participants will return to study site and drink a prepared blended spinach smoothie and be provided a breakfast meal. |
|
Experimental 5d Diet+Spinach Smoothie+Breakfast |
5 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and drink a prepared blended spinach smoothie and be provided a breakfast meal. |
|
Experimental 3d Diet+Kale Smoothie+Breakfast |
3 days of prepared meals with fasting on the final day. On the final day, participants will return to the study site and drink a prepared kale smoothie and be provided a breakfast meal. |
|
Experimental 3d Diet+V Spinach Smoothie+Breakfast |
3 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and drink a prepared blended spinach smoothie with varying amounts of spinach and be provided a breakfast meal. |
|
Experimental 3d Diet+Blended Smoothie+Breakfast |
3 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and drink a prepared blended smoothie and be provided a breakfast meal. |
|
Experimental 3d Diet+Breakfast |
3 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and be provided a breakfast meal. |
|
Experimental 3d Diet+Sodium Oxalate Drink+Breakfast |
3 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and drink a prepared sodium oxalate drink and be provided a breakfast meal. |
|
Experimental 3d Diet+Spinach Smoothie+Breakfast w/ 24 Hr Urine |
3 days of prepared meals with fasting on the final day. On final day, participants will return to the study site and drink a blended spinach smoothie and be provided a breakfast meal. |
|
More Details
- Status
- Active, not recruiting
- Sponsor
- University of Alabama at Birmingham
Study Contact
Detailed Description
Inflammation and dietary oxalate have been shown to play an important role in the development of kidney stones. Oxalate is a small molecule found in plants and plant-derived food. Individuals that have high oxalate intake have an increased risk of developing kidney stones. The co-investigators have previously shown that healthy subjects that consume dietary oxalate have increased plasma and urine oxalate. White blood cells are essential for the immune response and rely on the mitochondria to carry out important cell functions. The Principal Investigator's current research shows that patients with calcium oxalate kidney stones have decreased mitochondrial function in their immune cells. Using the expertise of the investigators, this study will test whether oxalate has a direct effect on mitochondrial function in immune cells from healthy subjects. This information could help us understand the role of oxalate on the immune system during kidney stone pathogenesis.