Active clinical trials for "Hyperhomocysteinemia"

Increased plasma homocysteine level is associated with macroangiopathy and nephropathy in type 2 diabetes. Also increased levels of serum homocysteine are associated with microalbuminuria which is associated with increased cardiovascular morbidity and mortality among the patients with type 2 diabetes. With B12 supplementation homocysteine level can be reduced .Type 2 diabetes as a metabolic syndrome may show improvement in glycaemic control with Vitamin B12 therapy as there is correction of hyperhomocysteinemia. In studies it is proved that combination of vit B12, folic acid and vit B6 are effective for hyperhomocysteinemia.There are no such separate trials on the use of vit B12 alone. This therapy may be used in large number of type 2 uncontrolled diabetic hyperhomocysteinemic patients. this study was planned with following objectives to study effect of Vitamin B12 supplementation on glycaemic control in poorly controlled hyperhomocysteinemic type 2 diabetic patients Glycaemic control measured by levels of glycosylated haemoglobin (HbA1c) at baseline and 4 weeks Fasting blood sugar level at baseline and 4 weeks Serum homocysteine/ vitamin B12 levels at baseline and 4 weeks Serum lipid profile at baseline and 4 weeks

The present study aims at investigating the effects of the oral supplementation with creatine on the systemic microvascular reactivity and plasma levels of homocysteine in vegetarian individuals of the vegan type.

The effect of a combination product (Verum ) with L-arginine, Pycnogenol, vitamin K2, R-(+)-alpha-lipoic acid and vitamins B6, B12 and folic acid is investigated in a double blind placebo-controlled cross-over study. Volunteers with hypertension and hyperhomocysteinemia are randomly assigned to the dietary supplement or placebo.

This micronutrient supplementation study is a 3-arm randomized controlled trial, unblinded, with 125 women per arm. Non-pregnant, non-lactating healthy women of reproductive age in West Kiang, The Gambia, will be randomized to 12 weeks of daily supplementation of either a) novel micronutrient supplement, b) a United Nations International Multiple Micronutrient Preparation (UNIMMAP) tablet or c) no intervention (control). The novel micronutrient supplement is a drink powder providing 800 µg folic acid, 5.2 µg cyanocobalamin (B12), 2.8 mg Riboflavin-5'-phosphate (B2), and 4g trimethylglycine (betaine). UNIMMAP contains 15 micronutrients at the Recommended Daily Allowance level. The aim is to test the effectiveness of the supplements on correcting micronutrient deficiencies in the dry season and to reduce homocysteine levels. The hypothesis is that the new drink powder will be the most effective supplement, causing a reduction in 1 µmol/L compared to the control group after supplementation. The supplements will be supplied to participants on a daily basis by Community-based Birth Attendants (CBCs). The CBCs will observe consumption of the supplement. The novel micronutrient supplement will be provided in powder form with instructions to dissolve one sachet in a cup of 200ml water. UNIMMAP will be provided in capsule form to be taken with water. Women will provide one 10ml fasted venous blood sample at baseline and another after 6 and 12 weeks of supplementation. At each time point they will also have their blood pressure and anthropometry assessed and provide a urine pregnancy test. Correcting micronutrient deficiencies is extremely important for the long-term health of women, and in particular around the time of conception and throughout pregnancy since micronutrients are needed for the proper physical and cognitive development of the baby. Certain micronutrients are required for adding a methyl group to places on DNA ('DNA methylation'). The pattern of these methyl groups can help determine whether a gene is switched on or off. Correct functioning of DNA methylation processes is therefore of critical importance for fetal development. High levels of homocysteine can impede DNA methylation, therefore supplements that reduce homocysteine may not only be beneficial for the mother but also for the developing child. The most effective supplement in this trial will be considered for testing in larger pregnancy trials.

The purpose of the present study was to determine whether folic acid supplementation could reduce plasma homocysteine in obese children and to determine the association between dietary folate, serum folate and homocysteine level through the randomized double blinded placebo controlled trial.

Alzheimer's disease (AD) is the most common neurodegenerative disease. Age is its main risk factor. AD is a multifactorial disease, combining genetic and environmental risk factors. Autosomal dominant mutations have been identified (PSEN1, PSEN2, APP), leading to earlier and more severe forms of the disease. Other genetic risk factors have been identified, such as the ε4 allele of the APOE gene. . The environment also plays a major role, with the identification of several risk factors such as air pollution or nutritional deficiencies. AD patients frequently present hyperhomocysteinemia, a consequence of a dysfunction of monocarbon metabolism. Homocysteine is an amino acid involved in the metabolism of methionine and cysteine. High concentrations of homocysteine can be deleterious to the central nervous system. Most prospective studies have shown that elevated homocysteine is a predictor of undefined cognitive impairment or AD. Other studies have focused on clinical data and, in particular, on cognitive function. For example, a meta-analysis found an inverse correlation between MMSE score and homocysteine level. Thus, our study seeks to evaluate the impact of hyperhomocysteinemia on the severity and early onset of AD, while knowing the presence or absence of genetic risk factors associated with AD.

Co-administration of creatine and guanidinoacetic acid (GAA) has been recently put forward as an advanced dietary strategy to optimize tissue bioenergetics. The investigators hypothesized that creatine-GAA mixture would result in more powerful rise in brain and skeletal muscle creatine, as compared to creatine supplementation alone.

A randomized prospective study was done to determine whether i.v. 5-methyltetrahydrofolate vs oral folate improved survival in ESRD patients. Homocysteine, CRP, Lp(a), albumin, folates, vitamin B6 and B12 were checked. The 5-MTHF treated group was associated with lowered C reactive protein and higher survival than the folate treated group.

OBJECTIVES: I. Compare the efficacy of two doses of folic acid in normalizing plasma total homocysteine concentration in patients with end stage renal disease receiving regular hemodialysis therapy resulting in hyperhomocysteinemia. II. Determine the requirement of co-supplementation with extra pyridoxine (vitamin B6) and cyanocobalamin (vitamin B12) daily in these patients. III. Assess the safety and tolerability of this therapy in these patients.

A methyl-group acceptor such as guanidinoacetic acid (GAA) could induce hyperhomocysteinemia with the effects of GAA expected to be dose-dependent. Due to the fact that hyperhomocysteinemia is thought to be an independent risk factor for cardiovascular and neurodegenerative diseases, different dietary agents were used in the past for the treatment of elevated total plasma homocysteine (T-HCy), e. g. betaine, choline (betaine precursor) or folic acid. In the context of GAA loading the question arises whether intake of betaine, choline (betaine precursor) or folic acid during GAA loading could affect plasma T-HCy in healthy humans. Forty healthy physically active men and women aged 20 to 30 years will take part in this GAA-controlled, double-blind and parallel-group intervention study. Subjects will be allocated to four randomly assigned trials, with treatment lasting for 8 weeks and washout period of 28 days. The 4 test treatment-groups will include TEST1 (GAA only), TEST2 (GAA, choline, B6, B12 and folic acid), TEST3 (GAA, betaine, B6, B12 and folic acid) and TEST4 (GAA, B6, B12 and folic acid). Plasma T-HCy will be the primary outcome measure assessed every second week throughout the study. Plasma B-vitamins and blood and urine metabolites (GAA, creatine, methionine, arginine) will be secondary outcome measures along with adverse-effects indicators assessed every second week throughout the study. Selected body composition indicators will be obtained at 0, 2, 8 and 12 weeks throughout the study to monitor the effects of experimental treatments on body hydration and protein synthesis. This research will test the hypothesis that a combination of GAA with homocysteine lowering nutrients attenuates the elevation of T-hcy, and will further display the size-effect of each additive used.