49 results about "5-Methyltetrahydrofolate" patented technology

Compositions and methods for improving the nutritional and physiological status of a woman and her child during all stages of pregnancy are provided herein. This includes pre-conceptional women, pregnant women, and post-natal women (both lactating and non-lactating mothers). The compositions are particularly useful for the neurological, visual, and cognitive development of an embryo, fetus, or infant and the nutritional and physiological well-being of the mother, fetus, and infant. The compositions contain one or more folates, such as a reduced folate and/or folic acid, and one or more essential fatty acids (EFA), such as an omega-3 and/or omega-6 fatty acid. The addition of the essential fatty acid improves upon the folate containing nutritional preparations described in the prior art. The one or more folates and essential fatty acid may be administered together or in separate dosage units. The one or more folates may be selected from folic acid/folate, one or more reduced folates, or a combination of folic acid/folate and one or more reduced folates. The reduced folate is preferably 5-methyltetrahydrofolate, and most preferably 5-methyl-(6S)-tetrahydrofolic acid. The essential fatty acid is preferably an omega-3 fatty acid, and is preferably docosahexenoic acid (DHA) derived from a vegetarian or non-fish source. The compositions may optionally contain other vitamins, minerals, and ingredients, such as, emollient laxatives—all defined herein as “optional or other ingredients”.

Compositions and methods for improving the nutritional and physiological status of a woman and her child during all stages of pregnancy are provided herein. This includes pre-conceptional women, pregnant women, and post-natal women (both lactating and non-lactating mothers). The compositions are particularly useful for the neurological, visual, and cognitive development of an embryo, fetus, or infant and the nutritional and physiological well-being of the mother, fetus, and infant. The compositions contain one or more folates, such as a reduced folate and/or folic acid, and one or more essential fatty acids (EFA), such as an omega-3 and/or omega-6 fatty acid. The addition of the essential fatty acid improves upon the folate containing nutritional preparations described in the prior art. The one or more folates and essential fatty acid may be administered together or in separate dosage units. The one or more folates may be selected from folic acid/folate, one or more reduced folates, or a combination of folic acid/folate and one or more reduced folates. The reduced folate is preferably 5-methyltetrahydrofolate, and most preferably 5-methyl-(6S)-tetrahydrofolic acid. The essential fatty acid is preferably an omega-3 fatty acid, and is preferably docosahexenoic acid (DHA) derived from a vegetarian or non-fish source. The compositions may optionally contain other vitamins, minerals, and ingredients, such as, emollient laxatives-all defined herein as “optional or other ingredients”.

The invention provides a method for detecting water-soluble vitamins in blood. The method includes the steps of detecting a mixed standard solution with at least three concentrations through a liquidchromatograph-mass spectrometer to obtain a first detecting result, wherein the mixed standard solution comprises internal standard substances and the water-soluble vitamins, and the water-soluble vitamins include the vitamin B1, the vitamin B2, the vitamin B3, the vitamin B5, pyridoxic acid, pyridoxal phosphate, the vitamin B7, the vitamin B9, 5-methyltetrahydrofolate, the vitamin B12 and the vitamin C; conducting fitting to obtain standard curve equations corresponding to the water-soluble vitamins on the basis of the first detecting result and the concentrations of the water-soluble vitamins; centrifuging a to-be-detected blood sample with a precipitate protein agent and a certain amount of internal standard substances, and taking supernate to be detected through the liquid chromatograph-mass spectrometer to obtain a second detecting result; obtaining the concentration of the water-soluble vitamins in the to-be-detected blood sample on the basis of the standard curve equations and the second detecting result. By means of the scheme, the detecting efficiency of the blood sample can be improved.

Compositions and methods for the treatment of osteoporosis and/or inflammatory joint disease are provided herein. The compositions contain a folate, such as a reduced folate, and folic acid. The folate is preferably 5-methyltetrahydrofolate, and most preferably 5-methyl-(6S)-tetrahydrofolic acid. The folate and folic acid can be given in the same dosage unit or separate dosage units, and more than one dosage unit can be given per dose. The compositions may also contain one or more vitamins and minerals selected from vitamin B12, vitamin B6, vitamin D3, calcium, magnesium, and polyunsaturated fatty acids (PUFAs). These ingredients are optional, but preferable (especially the vitamins and minerals). The compositions may further contain one or more additional ingredients such as vitamins, minerals, and laxatives. The compositions are useful in the treatment of all forms of osteoporosis, including primary osteoporosis and secondary osteoporosis, and/or inflammatory joint diseases, especially in patients having a folic acid metabolism deficiency. The compositions are particularly useful in the treatment of inflammatory joint diseases, with complications that include bone loss, fracture, and osteoporosis. In addition, the compositions are beneficial for the prevention of osteoporosis in subjects who do not yet have the disease, but who are at risk for getting osteoporosis, such as post-menopausal women, subjects with osteopenia (mid thinning of the bone mass), subjects with an inflammatory joint disease, or people who are over the age of 70.

The invention discloses a method for measuring homocysteine concentration. The method comprises the following steps of: placing a sample to be measured into an enzymatic circular reaction system, performing reaction shown as formulas 1 to 3, measuring and calculating the production rate of ammonia produced in the enzymatic circular reaction system so as to obtain the content of homocysteine in the sample to be measured; and the enzymatic circular reaction system comprises methionine synthase, methionine gama-lyase, O-acetyl homoserine aminocarboxypropyl transferase, 5-methyltetrahydrofolate or salt of the 5-methyltetrahydrofolate, and O-acetyl-L-homoserine. The invention also discloses a corresponding measuring reagent. The invention provides a novel homocysteine enzymological measuring method and a measuring reagent. The method does not need any special instrument, is easy and convenient to operate, has high sensitivity, is low in cost, can realize the clinical, quick and high-flow sample detection, ensures that the homocysteine possibly becomes the clinical conventional detection item, and has high scientific and economic value. The formulas 1 to 3 are shown in the specifications.

The invention discloses a preparation method of L-5-calcium methyltetrahydrofolate. The preparation method comprises the following steps of (1) adopting folic acid as a raw material, and reducing to preparing an intermediate 6-(R,S)-tetrahydrofolic acid; (2) carrying out chiral resolution on the 6-(R,S)-tetrahydrofolic acid, and obtaining an intermediate 6-S-tetrahydrofolate; (3) carrying out methylation on the 6-S-tetrahydrofolate to obtain an intermediate L-5-methyltetrahydrofolate; (4) reacting the L-5-methyltetrahydrofolate and salt containing calcium to obtain the L-5-calcium methyltetrahydrofolate. According to the method provided by the invention, the problem that hydrogen, wastewater and waste residues are easily generated by using a large number of sodium borohydride is avoided.

The invention discloses a kit for detecting folic acids in blood spots through a high performance liquid chromatography-tandem mass spectrometry. The kit comprises a standard product, a quality control product, a mixed internal standard solution, an eluent A, an eluent B, an extract, an extract additive, a combined antioxidant and a complex solution. The folic acids comprise a folic acid and 5-methyltetrahydrofolate. According to the invention, the kit is used for detection, which has the advantages of high sensitivity, high specificity, accuracy, simple pretreatment method, short time and greatly saved time cost; and the precision and recovery rate basically meet requirements.

The invention provides a method for determining folic acids in blood spots through high performance liquid chromatography-tandem mass spectrometry. The folic acid and 5-methyltetrahydrofolate are separated by high performance liquid chromatography, and then mass spectrometry isotope internal standard quantitation is used. The concentration of the standard is taken as the X-axis, and the peak arearatio of the standard to the internal standard is the Y-axis to establish a calibration curve. The content of the folic acid and 5-methyltetrahydrofolate is calculated. The method provided by the invention has the advantages of high sensitivity, high specificity, accuracy, simple pretreatment process, short time and greatly saved time cost.

The invention provides a biological synthesis method for increasing the accumulation of L-5-methyltetrahydrofolate, an L-5-methyltetrahydrofolate synthetase system co-expressed recombinant plasmid and a construction method and application thereof. The L-5-methyltetrahydrofolate synthetase system co-expressed recombinant plasmid comprises serine hydroxymethyltransferase (SHMT) gene GlyA and methylenetetrahydrofolate reductase (MTHFR) gene MetF sequences. The biological synthesis method for increasing the accumulation of the L-5-methyltetrahydrofolate comprises the following steps: converting for accumulating an original strain of the L-5-methyltetrahydrofolate to obtain a recombinant strain by virtue of the L-5-methyltetrahydrofolate synthetase system co-expressed recombinant plasmid, and fermenting the recombinant strain. The accumulation of the L-5-methyltetrahydrofolate in the recombinant strain in a final fermentation product is remarkably higher than that of the original strain, the utilization rate of the raw material is increased, and production cost and energy consumption are reduced.

The invention provides a method for measuring the levels of 5-methyltetrahydrofolate (5-MTHF), tetrahydrofolate (THF), and 5,10-MTHF in a biological sample. The method includes employing an isotope dilution liquid chromatography-multiple reaction monitoring/mass spectrometry (LC-MRM/MS) methodology.

The invention discloses a preparation method for a 5-methyltetrahydrofolate basic amino acid salt compound. The method comprises the following step of stirring basic amino acid and 5-methyltetrahydrofolate to prepare the 5-methyltetrahydrofolate basic amino acid salt compound under the action of a solvent. The invention also discloses the 5-methyltetrahydrofolate basic amino acid salt compound prepared by the preparation method and the application of the compound as a food additive, a nutritional supplement and a medicament. The 5-methyltetrahydrofolate basic amino acid salt compound has stable chemical properties at room temperature, and the solubility of the 5-methyltetrahydrofolate basic amino acid salt compound in water is over 50 percent.

The invention discloses a stable amorphous 5-methyltetrahydrofolate salt and a preparation method of the 5-methyltetrahydrofolate salt; the method comprises the steps of: firstly, neutralizing 5-methyltetrahydrofolate with alkali in aqueous medium until complete dissolution, adding alkaline-earth metal salt or alkaline-earth metal salt solution into the neutralized solution, controlling the temperature of the mixed solution to be within the range of 0-20 DEG C, carrying out ultrasonic treatment, and separating out the amorphous 5-methyltetrahydrofolate salt. The amorphous 5-methyltetrahydrofolate salt has higher stability; and the preparation method is simple in reaction steps, short in time, free from pollution, high in purity, good in stability and more suitable for industrial scale application.

The invention relates to a pharmaceutical composition containing an angiotensin II receptor blocker (ARB)/thiazide diuretics/5-methyltetrahydrofolate and an application of the pharmaceutical composition. The pharmaceutical composition comprises the ARB with pharmaceutical dosage, the thiazide diuretics with pharmaceutical dosage, the 5-methyltetrahydrofolate with pharmaceutical dosage, and a pharmaceutically acceptable carrier. The invention provides the application of the pharmaceutical composition in the preparation of medicines used for treating hypertension as well as preventing, treating or delaying target-organ damage caused by the hypertension. The invention also provides the application of the pharmaceutical composition in the preparation of medicines used for reducing the risk of cardiovascular and cerebrovascular events caused by the hypertension. Through the implementation of the invention, the pharmaceutical composition with the specific purposes is provided for patients, the medication compliance of the patients also can be increased, and the curative effect is improved.

The invention belongs to the technical field of enzymatic synthesis, and relates to a method for preparing L-5-calcium methyl tetrahydrofolate through an enzymic method. The method comprises the following steps that 1, folic acid serves as the raw material, and zinc powder is used for making zinc powder reduced to be dihydrofolic acid; 2, dihydrofolic acid reductase and glucose dehydrogenase are added in dihydrofolic acid, and a reaction is conducted to obtain L-tetrahydrofolic acid; 3, formaldehyde and hydroboron are added in L-tetrahydrofolic acid, and a reaction is conducted for obtaining L-5-methyltetrahydrofolate; 4, L-5-methyltetrahydrofolate is salified, and L-5-calcium methyl tetrahydrofolate is obtained. Accordingly, the effective method for preparing L-5-calcium methyl tetrahydrofolate through the enzymic method is provided, the preparation method is free of splitting, mild in reaction, high in yield, high in product purity and friendly to environment, and has a very good industrial prospect.

The invention discloses a fruit and vegetable active folic acid capable of reducing homocysteine. The fruit and vegetable active folic acid consists of main raw materials and auxiliary raw materials, wherein the main raw materials and the auxiliary raw materials are blended according to a raw material quality; the main raw materials comprise the following raw material powders in corresponding parts by weight: 300-800ug of 5-methyltetrahydrofolate, 100-300mg of glycine betaine, 0.1-1mg of vitamin B6, 0.1-2ug of vitamin B12, 3-10mg of vitamin E, 1-10mg of active Fe and 2-8mg of active zinc; and the auxiliary raw materials comprise the following raw materials in corresponding parts by weight: seaweed powder, composite natural fruit and vegetable powder, anhydrous dextrose powder, black soya bean powder and instant yeast powder are evenly mixed to obtain powder of which the specification is 2g/bag. The active folic acid disclosed by the invention obtains appointed nutritional ingredients from natural foods or vegetables, and meets a situation that the active folic acid is easy in metabolic absorption and the mutation possibility of a user is lowered while the homocysteine is reduced.

The invention belongs to the technical field of organic synthesis and relates to a method for preparing (6S)-5-methyltetrahydrofolate calcium. The method comprises the following steps: in an alkali environment, adding sodium borohydride, dropping a mixture of folic acid and water at a normal temperature, and performing a heating reaction to generate tetrahydrofolic acid; firstly, dropping a formaldehyde and sodium borohydride solution to implement a reaction, after the reaction is completed, cooling, leaving to stand for a certain time, and performing suction filtration to remove boron; dropping a calcium chloride solution into filtrate, performing stirring crystallization, and performing suction filtration so as to obtain 5-methyltetrahydrofolate calcium; mixing the obtained crystal withwater, adding EDTA (Ethylene Diamine Tetraacetic Acid) and S-(-)-N-ethyl-2-aminomethyl pyrrolidine, performing a resolution reaction, after the reaction is completed, cooling to separate an R-type antipode and an S-type antipode in sequence, continuously dropping the calcium chloride solution into the obtained S-type antipode, performing stirring crystallization, and performing suction filtration,thereby obtaining (6S)-5-methyltetrahydrofolate calcium. The (6S)-5-methyltetrahydrofolate calcium produced by using the method provided by the invention is high in product purity, stable in reactionand good in environment protection.

The invention relates to a homocysteine diagnosis/determination reagent (kit) using enzyme-colorimetry and enzyme-linked method technology. Meanwhile, the invention also relates to a homocysteine concentration determination method, reagent composition and component, which belongs to the technical filed of medical test and determination. The reagent (box) of the invention mainly includes: buffer solution, coenzyme, 5-methyltetrahydrofolate, methionine synzyme, dihydrofolate reductase and stabilizing agent; samples and reagent are mixed according to a certain volume ratio to generate a series of enzymatic reactions; then the reactants are arranged under an ultraviolet/visible light analyzer to detect the increasing degree of absorbance at the 340nm position of a dominant wave so as to measure and calculate the concentration of the homocysteine.

Methods are described for producing reduced, methylated, biologically active forms of folate, including 5-methyltetrahydrofolate (i.e. 5-methyltetrahydropteroylglutamic acid), 5-formyltetrahydrofolate, 10-formyltetrahydrofolate and tetrahydrofolate. Edible mushroom-producing fungi are cultivated to enhance the uptake of pteroylmonoglutamate (synthetic folate) into edible portions of the plants. The mushroom-producing fungi reduce and methylate the pteroylmonoglutamates into activated folates. The cultivated mycelia or mushrooms of the mushroom-producing fungi are harvested, and may be consumed directly or processed into oral dosage formats (capsules, tablets, softgels, powders, gel packets, liquids, nutritional bars, beverages) for use as functional foods or nutritional supplements.

The invention relates to new application of a pharmaceutical composition containing officinal dose of metformin and 5-methyltetrahydrofolate for preventing and treating complications of diabetic microangiopathy. The pharmaceutical composition is characterized in that the dose of the metformin is 250-1000 mg, and the dose of the 5-methyltetrahydrofolate is 0.4-1.6 mg. The application has the advantages that the pharmaceutical composition has obvious beneficial effects of preventing and treating the diabetic microangiopathy on the basis that the blood sugar is effectively lowered, so that the pharmaceutical composition is beneficial for preventing or delaying diabetic complications and lowering the disability rate and the fatality rate.

A composition of L-5-methyltetrahydrofolate or a pharmaceutically acceptable salt thereof and pharmaceutical excipients and a production method thereof, comprising L-5-methyltetrahydrofolate or a pharmaceutically acceptable salt thereof and pharmaceutical excipients, L-5-methyltetrahydrofolate or its pharmaceutically acceptable salts are in an amorphous state, and there is no L after deducting the background peak of the pharmaceutical excipients in the X-ray powder diffraction spectrum of the composition -Characteristic peaks of crystals of 5-methyltetrahydrofolate or its salts. The composition of L-5-methyltetrahydrofolate or its pharmaceutically acceptable salt and pharmaceutical excipients of the present invention has good stability and dispersibility, and increases the dissolution of L-5-methyltetrahydrofolate or its salt It is more conducive to improving the bioavailability of pharmaceutical preparations and the absorption of drugs by the body. Under accelerated test conditions, it can maintain good physical and chemical stability. The preparation method of the amorphous composition of the invention is simple in operation, low in cost, good in reproducibility, easy to implement and suitable for industrialized production.

The invention discloses lactococcus lactis accumulating L-5-methyltetrahydrofolate and a construction method thereof, and belongs to the field of genetic engineering. The recombinant lactococcus lactis provided by the invention can realize the intracellular accumulation of L-5-methyltetrahydrofolate, and the concentration of the L-5-methyltetrahydrofolate in microbial cells can reach 65 [mu]g/g DCW after 10 hours of fermentation so as to lay the foundation for further metabolic engineering of lactococcus lactis to produce L-5-methyltetrahydrofolate. The method for constructing the recombinantlactococcus lactis provided by the invention is simple, convenient to use, and has a good application prospect.

A diafnosis kit of homocysteine consists of compositions as buffer solution; 5-methyltetrahydrofolate; methyltetrahydrodioperin-homocysteine- methyltransferase; amino acid oxidase; 10 ( carboxymethyl-N2 -acetyl) -3, 7-dual ( dimethylamino) phenothiazine (DA-67) and stabilizer. Its method for determining concentration of homosteine is also disclosed.

The invention belongs to the field of pharmaceutical preparation and discloses a multivitamin pellet containing 5-methyltetrahydrofolate.The multivitamin pellet consists of a pellet core and a coating, and the diameter of the multivitamin pellet is 200-400 micrometers.The multivitamin pellet comprises, by unit dose, 0.3-0.8mg of folic acid, 1-2mg of vitamin B, 1.5-2microgram of vitamin B12, 80-120mg of an excipient and 6-10mg of a coating agent.The multivitamin pellet containing the 5-methyltetrahydrofolate has the advantages that stability of main ingredients under conditions of high temperature, high humidity and high light can be evidently improved, and accordingly medicine validity period is prolonged.