Consumption of Apple Juice in Hemodialysis Patients

NCT02974491 | Completed DMC

• 1 other identifier: 37090614.6.0000.0118
• Study Type: interventional
• Target: 6
• Locations: 0 countries
• Sites: N/A

Brief Summary

The investigators hypothesized that acute consumption of Fuji apple juice (AJ) could increase the antioxidant status and/or decrease the oxidative stress (OS) biomarkers, without increasing serum biochemical parameters in patients undergoing maintenance hemodialysis (MHD). In this pre-post pilot feasibility study, patients served as their own controls, received 300 and 150 mL AJ immediately after a dialysis section, on different days, with a 3 week-washout period. Blood was collected at the baseline period, after 30 and 60 min of AJ consumption. OS biomarkers (total antioxidant status (TAS), total oxidant status (TOS), ascorbic acid, catalase (CAT), glutathione peroxidase (Gpx), superoxide dismutase (SOD) and reduced glutathione (GSH) and potassium, phosphorus, uric acid, and glucose concentrations were analyzed.

Conditions

Oxidative Stress

Keywords

hemodialysis; diabetes mellitus; apple juice; potassium

Outcome Measures

Primary Outcomes (11)

• Measuring oxidative stress biomarkers

  Total antioxidant status (TAS) (mmol/L) and total oxidant status (TOS) (mmol/L) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Measuring endogenous antioxidant enzymes

  Catalase (U mg/Hb), glutathione peroxidase (U mg/Hb) and superoxide dismutase (U mg/Hb) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Measuring oxidative stress biomarkers

  Ascorbic acid (micromole/L) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Measuring oxidative stress biomarkers

  Reduced glutathione (micromole mg/Hb) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Measuring serum biochemical parameters

  Potassium (mmol/L), phosphorus (mmol/L) and glucose (mmol/L) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Measuring serum biochemical parameters

  Uric acid (micromole/L) was measured at the baseline period, after 30 and 60 min of acute consumption of 300 and 150 mL of Fuji apple (Malus domestica Borkh) juice. Patients were not fasted for the withdrawal of blood. This measure was taken to prevent discomfort among volunteers. Venous blood samples were collected through aseptic venipuncture on the opposite arm of the arteriovenous fistula by a qualified professional using a vacuum system into heparin or EDTA-containing tubes or tubes without additives according to established standards of clinical and biological safety.

  Change from baseline at 30 and 60 minutes

• Evaluating heigth

  Height (meters) data were obtained from the patient's files.

  at baseline

• Evaluating weight

  Weight (kilograms) data were obtained from the patient's files.

  At baseline

• Evaluating body mass index

  Body mass index (BMI) (Kg/m2) data were obtained from the patient's files.

  At baseline

• Evaluating medication

  Medication data were obtained from the patient's files.

  At baseline

• Evaluating adequacy of the dialysis treatment

  Adequacy of the dialysis treatment was captured by extracting the routine Kt/V from the medical record.

  At baseline

Study Arms (1)

Apple Juice

EXPERIMENTAL

Other: Fuji apple juice

Interventions

Fuji apple juice OTHER

On two different days, each volunteer consumed 300 mL Fuji apple juice (AJ), immediately after a dialysis section. After a washout period of 3 weeks, the volunteers drank 150 mL Fuji AJ in a similar manner as described above. Before and after 30 and 60 min of AJ consumption, blood samples were withdrawn for biochemical analysis.

Apple Juice

Eligibility Criteria

• Age: 20 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• hemodialysis treatment ≥ 3 months, age ≥ 20 years, and body mass index ≥ 23 kg/m2

You may not qualify if:

• allergy to apple, presence of cancer or acquired immunodeficiency syndrome, kidney transplant less than 6 months before enrolling in the study, taking antioxidant or nutritional supplements during the 30 days before enrollment, having been hospitalized within 6 weeks before the beginning of the study, or suffering from an acute illness

Sponsors & Collaborators

• Universidade Federal de Santa Catarina: lead

Related Publications (23)

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• Giusti, MM, Wrolstad, RE. Anthocyanins: characterization and measurement with UV-visible spectroscopy. In: Wrolstald, RE, ed. Current Protocols in Food Analytical Chemistry. New York, NY: John Wiley and Sons; 2001, p. 1-13.

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MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: principal investigator

Study Record Dates

• First Submitted: November 10, 2016
• First Posted: November 28, 2016
• Study Start: August 1, 2015
• Primary Completion: October 1, 2015
• Study Completion: October 1, 2015
• Last Updated: November 28, 2016

Record last verified: 2016-11