Effect of L-citrulline and HIIT on Arterial Stiffness and MAFLD in Adolescents

Arterial Stiffness Clinical Trial

Official title:

Effect of L-Citrulline Supplementation and High Intensity Interval Training (HIIT) on Arterial Stiffness in Adolescents With Metabolic Associated Fatty Liver Disease (MAFLD)

Clinical Trial Details — Status: Enrolling by invitation

Administrative data

• NCT number: NCT05778266
• Other study ID #: PWV-MAFLD-HIIT-CITRULLINE
• Status: Enrolling by invitation
• Phase: N/A
• Start date: March 14, 2023
• Est. completion date: August 2023

Study information

• Verified date: March 2023
• Source: Universidad de Guanajuato
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Obesity and metabolic dysfunction-associated fatty liver disease (MAFLD) accelerate the appearance of arterial stiffness due to inflammatory and oxidative stress mechanisms producing increased vascular tone and increasing the risk of cardiovascular disease. This arterial stiffness can be measured through pulse wave velocity (PWV). Obesity and MAFLD have multifactorial components, high fructose diet and sedentary lifestyle are causing the onset of these diseases earlier in life such as in adolescence. L-citrulline, a non-protein amino acid, has shown positive effects on improving nitric oxide synthesis which improves endothelial function, as well as results on the metabolic profile in MAFLD. High intensity interval training (HIIT) has also shown benefits on endothelial function improving the metabolic profile of people with obesity and MAFLD with the advantage of decreasing the time required to perform the physical activity. A clinical study will be conducted with 45 adolescents (15-19 years old) with MAFLD and the participants will be divided into 3 groups to perform HIIT and supplement with citrulline or placebo for 12 weeks.

Description:

The investigators hypothesize that citrulline and HIIT have additive effects on endothelial function in people with obesity and MAFLD, in addition to improving metabolic, lipid and hepatic steatosis profile. the researcher´s aim is to evaluate the effect of citrulline and HIIT on arterial stiffness assessed by PWV in adolescents with MAFLD. For this the investigators will perform a randomized, double-blind clinical study in 45 adolescents with MAFLD and obesity, who will be supplemented with 6 g per day with L-citrulline or placebo (Carboxymethylcellulose) and will perform HIIT sessions for 12 weeks. At the beginning and at the end of the intervention, the level of arterial stiffness by means of PWV, body composition, biochemical and metabolic data, as well as the degree of hepatic steatosis will be evaluated.

Recruitment information / eligibility

• Status: Enrolling by invitation
• Enrollment: 45
• Est. completion date: August 2023
• Est. primary completion date: June 2023
• Accepts healthy volunteers: No
• Gender: All
• Age group: 15 Years to 19 Years

Eligibility

Inclusion Criteria:

• Diagnosis of obesity and fatty liver disease associated with metabolic dysfunction (MAFLD) and with moderate or severe steatosis

• History of physical inactivity

• They should not be under treatment with any dietary supplement or polyvitamins for weight loss at least 6 months before the study.

• They should not be smokers.

• Not have a diagnosis of any chronic degenerative disease

• Adolescents without fracture or musculoskeletal injury

• Patients without surgical procedures at least 1 month prior to the protocol.

• Women who are not pregnant or use oral contraceptives

Exclusion Criteria:

• Participants who do not complete at least 80% of the training sessions.

• Participants who miss 2 consecutive weeks of training.

• Who do not ingest the L-citrulline supplement or placebo.

• Participants who present allergy or intolerance to L-citrulline.

• Participants who present any injury during the intervention period that prevents them from performing the training.

Related Conditions & MeSH terms

• Arterial Stiffness
• Fatty Liver
• Liver Diseases
• Obesity, Adolescent
• Pediatric Obesity

Intervention

Dietary Supplement:
• L-citrulline
oral supplementation of pure L-citrulline (6 g) for twelve weeks
• Carboxymethyl cellulose
oral supplementation of Carboxymethyl cellulose (6 g) as a placebo, for twelve weeks

Other:
• High Intensity Intervals Training
participants will have sessions 3 days a week for twelve weeks

Locations

Country	Name	City	State
Mexico	Universidad de Guanajuato	León	Guanajuato

Sponsors (1)

Lead Sponsor	Collaborator
Universidad de Guanajuato

Country where clinical trial is conducted

Mexico, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Arterial Stiffness	The degree of arterial stiffness will be evaluated by oscillometric device (Mobil-O Graph). This device assesses Pulse Wave Velocity	12 weeks
Primary	Reflected Wave	The Augmentation Index (AIx) measures the percentage of the pressure increase that is caused by the premature arrival of the reflected wave and is expressed as the ratio of PAo and PP multiplied by 100. AIx@75 is AIx corrected to a heart rate of 75 beats per minute. The Mobil-O Graph device also evaluates AIx@75	12 weeks
Primary	Degree of hepatic steatosis	The degree of hepatic steatosis will be evaluated by abdominal ultrasound. It will be diagnosed as: Moderate, when sound attenuation is added.; Severe, when the wall of the portal vessels and the diaphragm are not visible.	12 weeks
Secondary	Glucose metabolism: glucose	Glucose will be evaluated by the Lakeside glucose oxidase method (GOD-PAPTM).	12 weeks
Secondary	Glycated hemoglobin (HbA1c)	Glycated hemoglobin (HbA1c) will be measured by reflectance spectrophotometry, by boronic acid affinity.	12 weeks
Secondary	Insuline Resistance	Insulin level will be measured by ELISA (ALPCO) method. The Homeostatic Model Assessment Index (HOMA-IR) will be calculated to determine insulin resistance.	12 weeks
Secondary	Lipid profile	The lipid profile will be measured by the modified Huang method.	12 weeks
Secondary	VO2max	VO2max is a measure of aerobic exercise capacity. It will be performed on a cycloergometer. Every 2 minutes 0.5 kp will be increased and HR will be measured minute by minute with a portable monitor (Polar HO1). When the participant no longer maintains the 60 rpm cadence or reaches the maximum perceived exertion on the modified Borg scale (9 or 10), the test is terminated.	12 weeks
Secondary	Arterial Pressure	Is pressure exerted by the blood on the artery wall. The mobil-O Graph also evaluates arterial pressure and reports it as Dyastolic Pressure (DAP), Systolic Pressure (SAP) and Mean Arterial Pressure (MAP)	12 weeks
Secondary	Body composition	Bioelectrical impedance will be used to assess total body composition as fat free mass (FFM), fat mass (FM) and total body water, using the standard configuration.; The portable, multi-frequency In body S10 device will be used and it reports body composition in percentage (%)	12 weeks