Obesity (Disorder)
Conditions
Brief summary
This randomized crossover clinical trial aims to evaluate the effect of a synbiotic containing Lactobacillus acidophilus and inulin on cognitive function in adults with obesity and mild cognitive impairment. Forty participants aged 30-40 years will be randomly assigned to two groups. Participants will receive either the synbiotic intervention or a control preparation, followed by crossover to the alternate intervention. Cognitive function will be evaluated using the Montreal Cognitive Assessment (MoCA), Mini-Mental State Examination (MMSE), and Memory Alteration Test (M@T). Fecal butyrate and Lactobacillus acidophilus, as well as serum inflammatory cytokines and BDNF, will also be assessed to explore potential mechanisms involving the gut-brain axis.
Interventions
Participants will receive 2 g of Lactobacillus acidophilus (4 × 10⁹ CFU) plus 7 g of agave inulin, combined with 20 g of a powder containing almond, cinnamon, vanilla, and oats, dissolved in water and administered once daily for 12 weeks.
Sponsors
Study design
Eligibility
Inclusion criteria
* Adults aged 30 to 40 years. * Diagnosis of obesity for more than 10 years. * Presence of mild cognitive impairment, evaluated using cognitive assessment scales. * BMI ≥30 kg/m². * Body fat percentage ≥35% in women and ≥25% in men. * Willingness to participate and provide written informed consent.
Exclusion criteria
* Advanced cognitive impairment. * Diseases associated with cognitive impairment, including Alzheimer's disease, cerebral ischemia, cerebrovascular events, severe traumatic brain injury, or motor deficits. * Antibiotic use during the 3 months prior to treatment. * Allergy to almonds or any component of the synbiotic or vehicle. * Consumption of probiotics or supplements and/or frequent intake of high-fiber or fermented foods. * Diagnosed gastrointestinal disorders, including irritable bowel syndrome or inflammatory bowel disease, that could influence study outcomes. * Diagnosis of type 2 diabetes mellitus.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Montreal Cognitive Assessment (MoCA) Score | Baseline, Week 12, and Week 26. | The total score ranges from 0 to 30 points, with higher scores indicating better cognitive performance |
| Change in Mini-Mental State Examination (MMSE) Score | Baseline, Week 12, and Week 26. | The total score ranges from 0 to 30 points, with higher scores indicating better cognitive performance. |
| Change in Memory Alteration Test (M@T) Score | Baseline, Week 12, and Week 26. | The total score ranges from 0 to 50 points, with higher scores indicating better memory performance. |
Countries
Mexico