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Brazilian Cardioprotective Diet and Nuts in Post-acute Myocardial Infarction

Not Applicable
Completed
Conditions
Coronary Artery Disease
Myocardial Infarction
Interventions
Dietary Supplement: Brazilian cardioprotective diet plus 30g/day of mixed nuts
Dietary Supplement: Brazilian cardioprotective diet
Registration Number
NCT03728127
Lead Sponsor
Hospital do Coracao
Brief Summary

Coronary artery disease (CAD) is the leading cause of death worldwide. Dietary patterns and functional foods may play an important role in the management of cardiovascular risk factors such as overweight and dyslipidemia, as well as inflammation and oxidative stress. However, little is known regarding the effect of diets or specific nutrients on these parameters in individuals with acute myocardial infarction (AMI). The Brazilian Cardioprotective Diet (DicaBr) is based on Brazilian nutritional guidelines and also in a unique and ludic nutritional strategy. In a pilot study, this diet was effective in reducing blood pressure (intragroup comparison) and body weight (intergroup comparison) in individuals with established cardiovascular disease (CVD). However, the effectiveness of this dietary pattern supplemented with different kind of nuts is unknown. The aim of this study is to evaluate the effect of the DicaBr supplemented or not with 30g/day of different nuts on cardiometabolic parameters in patients with recent AMI. In this parallel randomized controlled trial, 388 patients ≥40 years with a recent diagnosis of AMI (60 to 180 days) will be allocated to one of two study groups: 1) DicaBr group (DCB, control group); or 2) DicaBr group supplemented with mixed nuts (DCBN, intervention group). All patients will receive the same dietary prescription, the DCBN group also will receive 30g/day of nuts (10g of peanuts, 10g of cashew nuts and 10g of Brazilian nuts). A pilot study including 100 individuals who will receive only peanuts (30g/day) will be conducted. The primary outcome will be LDL-cholesterol (LDL-c) levels after 16 weeks. In the baseline and at the end of the study (16 weeks), lipid and glycemic profile and anthropometric indexes will be evaluated in both groups; inflammatory and oxidative stress markers, and adipokines will be evaluated in a subsample. It is expected that DicaBr supplemented with nuts will be superior to DicaBr alone to benefit patients with AMI regarding cardiometabolic parameters.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
488
Inclusion Criteria

Patients ≥ 40 years with previous AMI (60 to 180 days).

Exclusion Criteria
  • Clinical indication of myocardial revascularization surgery (graf /bypass);
  • HIV positive in treatment/AIDS;
  • Chronic inflammatory diseases;
  • Cancer;
  • Chemical dependency/alcoholism;
  • Chronic use of anti-inflammatories, anticonvulsants and immunosuppressive drugs;
  • Pregnancy or lactation;
  • Wheelchair users without conditions of anthropometric evaluation;
  • Extreme obesity (BMI ≥40kg / m²);
  • Use of dietary supplements;
  • Rejection/allergy to oilseed consumption;
  • Participation in other randomized studies at the time of enrollment.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
DicaBr group and nuts (DCBN)Brazilian cardioprotective diet plus 30g/day of mixed nutsBrazilian cardioprotective diet plus 30g/day of mixed nuts (10g of peanuts, 10g of cashew nuts and 10g of Brazil nuts)
DicaBr group (DCB)Brazilian cardioprotective dietBrazilian cardioprotective diet
Primary Outcome Measures
NameTimeMethod
LDL-cChanges in LDL-c after 16 weeks

Low-density lipoprotein cholesterol (LDL-c), in mg/dL: LDL-c will be detected by Martins´mathematical formula

Secondary Outcome Measures
NameTimeMethod
WCChanges in WC after 16 weeks

Waist circumference (WC), in cm

TCChanges in TC after 16 weeks

Total cholesterol (TC), in mg/dL

NHDL-cChanges in NHDL-c after 16 weeks

Non-HDL cholesterol (NHDL-c), in md/dL; total cholesterol (in mg/dL) and high-density lipoprotein cholesterol (in mg/dL) will be combined to report NHDL-c in mg/dL

Castelli I indexChanges in Castelli I index after 16 weeks

TC/HDL-c ratio, in mg/dL; total cholesterol (in mg/dL) and high-density lipoprotein cholesterol (in mg/dL) will be combined to report Castelli I index in mg/dL

Castelli II indexChanges in Castelli II index after 16 weeks

LDL-c/HDL-c ratio, in mg/dL; low-density lipoprotein cholesterol (in mg/dL) and high-density lipoprotein cholesterol (in mg/dL) will be combined to report Castelli II index in mg/dL

HDL-cChanges in HDL-c after 16 weeks

High-density lipoprotein cholesterol (HDL-c), in mg/dL

TG/HDL-cChanges in TG/HDL-c after 16 weeks

TG/HDL-c ratio (TG/HDL-c), in mg/dL; serum triglycerides (in mg/dL) and high-density lipoprotein cholesterol (in mg/dL) will be combined to report TG/HDL-c in mg/dL

HbA1CChanges in HbA1C after 16 weeks

glycated hemoglobin (HbA1C), in %

TGChanges in TG after 16 weeks

Serum triglycerides (TG), in mg/dL

VLDL-cChanges in VLDL after 16 weeks

Very low-density lipoprotein cholesterol (VLDL-c), in mg/dL; serum triglycerides, (in mg/dL) divided by 5 will be used to report VLDL-c in mg/dL

INSChanges in INS after 16 weeks

Serum insulin (INS), in mU/L

HOMA-IRChanges in HOMA-IR after 16 weeks

Homeostasis model assessment-insulin resistance, defined according to: \[FG (in mmol) x INS (in UI/mL) ÷ 22.5\]

HCChanges in HC after 16 weeks

Hip circumference, in cm

WHRChanges in WHR after 16 weeks

Waist-to-hip ratio (WHR); waist circumference (in cm) and hip circumference (in cm) will be combined to report WHR

FGChanges in FG after 16 weeks

Fasting glucose (FG), in mg/dL

BWChanges in BW after 16 weeks

Body weight, in kg

BMIChanges in BMI after 16 weeks

Body mass index (BMI), in kg/m\^2; weight (in kg) and height (in meters) will be combined to report BMI in kg/m\^2

WHtChanges in WHt after 16 weeks

Waist-to-height ratio (WHt); waist circumference (in cm) and height (in meters) will be combined to report WtH, in cm/m

Trial Locations

Locations (9)

Universidade Federal do Rio Grande do Norte

🇧🇷

Natal, Rio Grande Do Norte, Brazil

Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul

🇧🇷

Porto Alegre, Rio Grande Do Sul, Brazil

Hospital de Clínicas da Universidade Federal de Goiás (HC-UFG)

🇧🇷

Goiânia, Brazil

Instituto Nacional de Cardiologia (INC)

🇧🇷

Rio De Janeiro, Brazil

Universidade Federal do Maranhão (UFMA)

🇧🇷

São Luís, Brazil

Universidade Federal de Alagoas (UFAL)

🇧🇷

Maceió, Brazil

Hospital do Coração (HCor)

🇧🇷

São Paulo, Brazil

Hospital de Clínicas da Universidade Federal do Paraná (HC-UFPR)

🇧🇷

Curitiba, Brazil

Hospital de Clínicas de Porto Alegre - Universidade Federal do Rio Grande do Sul (HCPA-UFRGS)

🇧🇷

Porto Alegre, Brazil

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