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Dietary intervention in metabolic syndrome and its association with the genetic profile of lactose intolerance

Influence of lactose-free diet on metabolic syndrome: role of polymorphisms in the genes for lactase, adiponectin and its receptor, GIP and its receptor, TCF7L2, TNF-alpha, IL-6 and NFK-B

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-6gh6s9
Enrollment
Unknown
Registered
2019-12-19
Start date
2014-06-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lactose Intolerance. Metabolic Syndrome. Amplified Fragment Length Polymorphism Analysis. Polymorphism, Single Nucleotide

Interventions

Three groups with different dietary interventions are compared: CONTROL GROUP - Two hundrend patients will receive a hypocaloric dietary (with total energy value of 20 Kcal/kg weight), following the
Other
C06.405.469.637.506

Sponsors

Universidade do Estado da Bahia
Lead Sponsor
Associação de Pais e Amigos dos Excepcionais (APAE)
Collaborator

Eligibility

Age
20 Years to 80 Years

Inclusion criteria

Inclusion criteria: Volunteers diagnosed with metabolic syndrome based on the criteria proposed by the International Diabetes Federation (IDF, 2006); both genders; age range from 20 to 80 years old; signature of the informed consent form (ICF).

Exclusion criteria

Exclusion criteria: Patients with inflammatory bowel disease (Crohn's disease, ulcerative colitis, irritable colon and diverticulitis); with chronic renal failure; with chronic liver disease (with the exception of hepatic steatosis); taking medication for appetite control, hypoglycemic, hypolipidemic or anxiolytic/antidepressant; with autoimmune diseases and/or taking corticosteroids.

Design outcomes

Primary

MeasureTime frame
We aim to assess anthropometric parameters that compose and / or contribute to the development of metabolic syndrome. Anthropometric parameters will be verified by the presence of central obesity, from the measurement of abdominal circumference with the use of inelastic tape, considered appropriate when the measurements were less than 88cm for women and 94cm for men. This parameter will be verified according to the recommendations available in the I Brazilian Metabolic Syndrome Guideline of 2005. Continuous data will be presented as mean and standard deviation (or median and interquartile ranges) and categorical data with absolute and relative frequency. ;We aim to assess biochemical and clinical parameters that compose and / or contribute to the development of metabolic syndrome. The biochemical parameters will be verified by measuring the serum levels of: - high-density lipoprotein cholesterol (HDL-c), using the colorimetry method. Values are considered adequate when higher than 40 mg/dL in men or 50 mg/dL in women; - triglycerides, using the enzymatic method. Values are considered adequate when lower than 150mg/dL; - glucose, using the enzymatic method. Values are considered adequate between 70 to 99ml / dL. These parameters will be verified in patients after 12h fasting, using specific biomolecule dosing kits available at the laboratory of the Association of Parents and Friends of the Exceptional. The degree of insulin resistance will be evaluated using the Homeostasis Model Assessment Index (HOMA), the HOMA-IR. It is a simple mathematical calculation that is based on fasting insulin and glucose levels. In the following sentence, there is the formula for the calculation of HOMA-IR: Fasting blood glucose x 0.0555 x Fasting insulin / 22.5 (MATTHEWS et al., 1985; OLIVEIRA; SOUZA; LIMA, 2006). The insulin resistance classification was defined according to the instructions of the Brazilian Diabetes Society Guidelines (2015-2016), based on studies by Stern et al.

Secondary

MeasureTime frame
We aim to evaluate the presence of lactose intolerance in patients with metabolic syndrome. To verify whether the individual has lactose intolerance, the oral lactose tolerance test (OLTT) is performed. OLTT uses the biochemical blood glucose test; this test consists of dosing fasting blood glucose and after 30 and 60 minutes of intake of 50g lactose (dose for adult and elderly). If blood glucose after lactose ingestion does not increase more than 20 mg/dl of fasting glucose, lactose intolerance is present. Following the lactose-free diet by metabolic syndrome patients, it is expected to find improvement of lactose intolerance signs and symptoms: - abdominal discomfort and pain - flatulence - diarrhea - borborygmos Such signs and symptoms will be verified in the interview, when patients/volunteers return to the nutrition clinic after experimental period. The results will be expressed as absolute and relative frequencies.

Countries

Brazil

Contacts

Public ContactEdilene Queiroz Araújo

Universidade do Estado da Bahia

emaraujo@uneb.br+5571999772922

Outcome results

None listed

Source: REBEC (via WHO ICTRP)