Kidney Injury Clinical Trial
Official title:
Does Probiotic Supplementation Prevent Kidney Injury During Strenuous Physical Exercise?
Verified date | April 2024 |
Source | Göteborg University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Severe heat strain arising from intense physical work under climate conditions that does not allow sufficient heat dissipation may lead to heat stroke. This severe conditions is hypothesized to be secondary to increased gut permeability and leakage of bacterial toxins across the gut membrane, stimulating a systematic inflammatory response and associated organ injury. Repeated such sub-clinical increases in gut permeability has been suggested to contribute to the high burden of chronic kidney disease among heat-stressed workers. Many marathon runners experience a transient increase in kidney injury biomarkers while running. Probiotics have been studied as a way to decrease gut permeability and reduce systemic inflammation in many settings, including in athletes . However, no study has measured renal outcomes among workers or athletes performing strenuous activity. This is of interest as it could test the hypothesis that gut-induced inflammation is a driver of kidney injury during heat stress, and could point to a possible intervention to add on to efforts to relieve heat strain. In the present study, recreational or professional runners will be randomized to take a probiotic supplement or placebo during a 4 week period preceding a strenuous physical exercise (minimum 21 km run). Urine samples will be taken before and after the run, and analyzed for markers of renal injury and inflammation.
Status | Completed |
Enrollment | 43 |
Est. completion date | December 31, 2023 |
Est. primary completion date | December 31, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 100 Years |
Eligibility | Inclusion Criteria: - Planning to run one of the long-distance races included. Exclusion Criteria: - Not having run at least 21 km previously, - smoking, - living too far away from the study area, - unwilling to abstain from probiotic supplementation during treatment period, - unwilling to abstain from NSAIDs or gut-permeability lowering supplements before the run, - regular use of prescribed drugs (including hormonal contraceptives). |
Country | Name | City | State |
---|---|---|---|
Sweden | Occupational and Environmental Medicine | Gothenburg |
Lead Sponsor | Collaborator |
---|---|
Göteborg University |
Sweden,
Hansson E, Glaser J, Jakobsson K, Weiss I, Wesseling C, Lucas RAI, Wei JLK, Ekstrom U, Wijkstrom J, Bodin T, Johnson RJ, Wegman DH. Pathophysiological Mechanisms by which Heat Stress Potentially Induces Kidney Inflammation and Chronic Kidney Disease in Sugarcane Workers. Nutrients. 2020 Jun 2;12(6):1639. doi: 10.3390/nu12061639. — View Citation
Leon LR, Bouchama A. Heat stroke. Compr Physiol. 2015 Apr;5(2):611-47. doi: 10.1002/cphy.c140017. — View Citation
Mansour SG, Verma G, Pata RW, Martin TG, Perazella MA, Parikh CR. Kidney Injury and Repair Biomarkers in Marathon Runners. Am J Kidney Dis. 2017 Aug;70(2):252-261. doi: 10.1053/j.ajkd.2017.01.045. Epub 2017 Mar 28. Erratum In: Am J Kidney Dis. 2017 Sep;70(3):452. — View Citation
Vaisberg M, Paixao V, Almeida EB, Santos JMB, Foster R, Rossi M, Pithon-Curi TC, Gorjao R, Momesso CM, Andrade MS, Araujo JR, Garcia MC, Cohen M, Perez EC, Santos-Dias A, Vieira RP, Bachi ALL. Daily Intake of Fermented Milk Containing Lactobacillus casei Shirota (Lcs) Modulates Systemic and Upper Airways Immune/Inflammatory Responses in Marathon Runners. Nutrients. 2019 Jul 22;11(7):1678. doi: 10.3390/nu11071678. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Urine tubular kidney injury marker (Kidney Injury Molecule 1 (KIM-1), monocyte chemotactic protein 1 (MCP-1), Insulin Growth Factor Binding Protein 7 (IGFBP-7)) composite variable aggregated using structural equations modelling. | Tubular injury markers measured in urine (e.g. KIM-1, MCP-1, IGFBP-7) combined using structural equations modelling and then combined over the 24 hour post-run period by calculating the area under the curve of this composite outcome variable in the 24 hours after the run. Exact list of markers to be determined based on budget available after sample collection is completed. | From before the run to after the run (estimated run times 2-24 hours), morning urine after run, and 24 hours after the run finish. These time point are combined to one main outcome by calculating the area under the curve. |
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