Effect of Sulforaphane in Broccoli Sprouts on Nrf2 Activation
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Purpose
The purpose of this study to investigate the effect of sulforaphane from macerated broccoli sprouts in humans and to evaluate less invasive methods of assessing potential anti-inflammatory drugs in CF.
| Condition | Intervention |
|---|---|
|
Cystic Fibrosis |
Dietary Supplement: Broccoli sprouts |
| Study Type: | Interventional |
| Study Design: | Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Basic Science |
| Official Title: | Evaluation of the Effect of Sulforaphane in Broccoli Sprouts on Nrf2 Activation, Measures of Oxidative Stress, and Neutrophil Migration to Mucosal Surfaces in Healthy and CF Subjects |
- Nrf2 activation in nasal epithelial cells [ Time Frame: Days 3 and 8 ] [ Designated as safety issue: No ]Nrf-2 will be determined by western blot analysis from nasal epithelial cells obtained by curretage.
- Measures of lipid peroxidation in nasal epithelial cells [ Time Frame: Days 3 and 8 ] [ Designated as safety issue: No ]Products of lipid peroxidation will be determined by western blot analysis on nasal epithelial cells obtained by curretage.
- Measures of glutathione from blood lymphocytes [ Time Frame: Days 3 and 8 ] [ Designated as safety issue: No ]Blood will be withdrawn from the subjects and monocytic cells will be obtained for analysis of intracellular glutathione.
- Measures of oxidative stress in urine [ Time Frame: Days 3 and 8 ] [ Designated as safety issue: No ]Urine will be obtained on days 3 and 8 for quantification of F2-isoprostane and bromotyrisine.
- Measure of neutrophil migration into the gingival crevices [ Time Frame: Days 1, 2, 3, 6, 7, 8 ] [ Designated as safety issue: No ]Patients will perform mouthwashes with normal saline. Neutrophil counts will be performed on fresh samples. Acradine orange will be added to the saline rinses and neutrophils will be counted under the microscope
| Estimated Enrollment: | 15 |
| Study Start Date: | April 2011 |
| Estimated Study Completion Date: | September 2011 |
| Estimated Primary Completion Date: | September 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Broccoli Sprouts
Healthy volunteers and subjects with cystic fibrosis
|
Dietary Supplement: Broccoli sprouts
Subjects (both healthy volunteers and subjects with cystic fibrosis) will consume 100 gm of raw broccoli sprouts once daily for 5 consecutive days.
Other Name: sulforaphane
|
Detailed Description:
The hypothesis to be tested is that sulforaphane consumed from macerated broccoli sprouts will activate Nrf2, reduce oxidative metabolites and reduce neutrophils in the oral mucosa after 5 days of therapy in healthy volunteers and CF subjects.
The study requires 6 brief outpatient visits over 8 days. Study procedures include medical history, height, weight, vital signs, blood and urine collection, nasal curettage, saline mouthwash, and ingestion of broccoli sprouts (100 gm of 3 to 5 day old raw broccoli sprouts once daily for 5 consecutive days).
Eligibility| Ages Eligible for Study: | 18 Years to 49 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy volunteers and patients with cystic fibrosis ≥ 18 < 50 years of age
- Healthy volunteers must be in general good health as determined by a medical history
- CF subjects must have a documented diagnosis of CF (positive sweat chloride ≥ 60 mEq/liter, by pilocarpine iontophoresis) and/or a genotype with two identifiable mutations consistent with CF accompanied by one or more clinical features with the CF) phenotype
- CF subjects must have a baseline FEV1 percent predicted > 50% (in the last year, obtained from medical record)
- CF subjects must be clinically stable: free of any acute illness for > 14 days CF subjects must not have been prescribed any new systemic antibiotics for the 14 days prior to enrollment
- Ability to provide written informed consent
- Ability to adhere to the protocol
Exclusion Criteria:
- Use of NSAIDS (e.g., ibuprofen) or corticosteroids including inhaled steroids for the 4 weeks prior to enrollment
- Active gingival disease (active tooth or gum disease)
- History of nephrolithiasis or cholelithiasis
- Allergy to broccoli
- Any chronic condition that compromises the participant as determined by medical history
- Pregnancy
- Inability to tolerate the study procedures
- CF subjects: Infected with B. cepacia
Contacts and Locations| United States, Ohio | |
| Rainbow Babies and Children's Hospital | |
| Cleveland, Ohio, United States, 44106 | |
| Principal Investigator: | James F. Chmiel, MD, MPH | Rainbow Babies and Children's Hospital |
More Information
Publications:
| Responsible Party: | James F. Chmiel, M.D., M.P.H., Associate Professor of Pediatrics, University Hospitals of Cleveland |
| ClinicalTrials.gov Identifier: | NCT01315665 History of Changes |
| Other Study ID Numbers: | UHCMC-CFRC-2011-01 |
| Study First Received: | March 14, 2011 |
| Last Updated: | August 3, 2011 |
| Health Authority: | United States: Institutional Review Board |
Keywords provided by University Hospitals of Cleveland:
|
broccoli sprouts sulforaphane triterpenoid Nrf2 activation |
cystic fibrosis healthy volunteers anti-inflammatory |
Additional relevant MeSH terms:
|
Cystic Fibrosis Fibrosis Pancreatic Diseases Digestive System Diseases Lung Diseases Respiratory Tract Diseases Genetic Diseases, Inborn Infant, Newborn, Diseases |
Pathologic Processes Sulforafan Anticarcinogenic Agents Protective Agents Physiological Effects of Drugs Pharmacologic Actions Antineoplastic Agents Therapeutic Uses |
ClinicalTrials.gov processed this record on May 16, 2013