View clinical trials related to Trimethylamine-N-oxide.
Filter by:The subject of doctoral dissertation: Assessment of the effects of a meatless, ketogenic restrictive diet on body composition, strength capacity, oxidative stress and immune response During planning of research and topic of the doctoral dissertation, it was considered how to modify a standard ketogenic diet rich in saturated fatty acids so that the use of this model of nutrition has the most anti-inflammatory effect. Therefore, it was decided to conduct a research to check whether a diet rich in omega-3 polyunsaturated fatty acids will show such an effect when following a high-fat diet. Hypotheses: 1. The ketogenic diet reduces systemic inflammation. 2.The ketogenic diet reduces oxidative stress. 3. The ketogenic diet reduces body fat. 4. A ketogenic diet does not worsen strength performance.
Jing Si herbal tea includes eight Chinese herbs: such as mugwort leaves, fish needle grass, Ophiopogon japonicus, platycodon, perilla leaves, chrysanthemum, and licorice. In vitro, these ingredients were found to be able to block the binding of SARS-CoV-2 and human ACE2 receptor, and further reduce the penetration ability of the virus. Now, Jing Si herbal tea liquid packets have obtained the special license for export from the Ministry of Health and Welfare in Taiwan. The aim of the study is to investigate (1) the effect of Jing Si herbal tea liquid on blood pressure, blood sugar, and cholesterol in patients with cardiovascular diseases. (2)The human gut microbiota change which is associated with TMAO production (3) The proinflammatory and inflammatory biomarkers change. We are going to recruit 100 participants from cardiovascular clinics, including patients with hypertension, hyperlipidemia, ischemic heart disease and diabetes, aged 20-75 years old. We exclude those who are cancer patients, have comorbidities with poor control, patients with eGFR< 40 ml/min/1.73m2, those who are pregnant, breastfeeding, and in their menstrual period when recruiting. The study has two parts. The first part is a pilot study with 20 subjects all take active Jing Si herbal tea. The second part is a double-blind randomized controlled study with 40 subjects in each arm.
Recent evidence indicates that Trimethylamine-N-oxide (TMAO) is a pro-atherosclerotic, phosphatidylcholine-dependent metabolite of diet and intestinal flora. Food substrates derive from carnitine and phosphatidylcholine (lecithin), present mainly in eggs, red meat, liver and pork. The intestinal flora pattern that favors the formation of TMAO is very similar to that which predisposes to insulin resistance and obesity: a high proportion between phylum Firmicutes over Bacteroidetes. The intestinal microbiota is sensitive and variable; the use of prebiotics and probiotics can change the relationship between Firmicutes/Bacteroidetes phyla. Red wine (RW), for its composition with polyphenols and possible bactericidal role, may play a role in the intestinal flora modification and could promote proliferation of beneficial bacteria. However, the influence of RW on TMAO is not known. This is the hypothesis to be tested in this trial. METHODS: This is a prospective, crossover, randomized, controlled trial with patients from Heart Institute (InCor), FMUSP and volunteers recruited through press releases. We will evaluate 42 patients, all men, with established atherosclerotic disease. Patients will be evaluated in a crossed manner: each subject receives both treatments, intervention and control (in random order), and they will be divided into 2 groups: A and B. In the first intervention stage, after 2 weeks of washout for all patients , group A receives Red Wine (RW) and group B is the control, abstemious. In the 2nd stage of intervention, after 2 weeks of washout for all patients the groups are inverted: group B receives RW; and group A will be abstemious. In the period with wine intervention, patients will receive 250 mL/day of red wine per day, for 5 days of the week, for 3 weeks. Patients will maintain their usual diet without the use of prebiotics or probiotics, or other polyphenolic derivatives. At the beginning and at the end of each stage, patients will be submitted to serum TMAO and intestinal microbiota evaluation. For the intestinal microbiota evaluation, the new generation sequencing will be used in the highly preserved portion of the 16S subunit of the rRNA gene. The determination of TMAO in plasma will be by liquid chromatography coupled to mass spectrometry. Expected results: It is expected to determine if RW acts on the intestinal flora to the point of influencing plasma TMAO concentration.
Trimethylamine N-oxide (TMAO) is a small organic compound naturally present in fish and seefood or generated by the bacterial breakdown of dietary phosphatidylcholine and carnitine-containing foods within the human gut microbiome. Elevated serum TMAO was previously reported to be associated with an elevated risk for cardiovascular events. Aim of this study was to investigate the association between plasma levels of TMAO with the Mediterranean diet in a cohort of healthy adults.