Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a composition for improving exercise myocardial injury, which is mainly applied to high-load exercise groups, especially before military operators prepare to exercise for a long time and high intensity, the composition can accelerate the repair rate in vivo by simply taking orally, improve the activity of superoxide dismutase SOD, inhibit the rise of troponin T, and further protect myocardial peroxidation injury.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides a composition for improving exercise myocardial injury, which comprises, by weight, 15-25 parts of soybean peptide powder, 10-15 parts of branched chain amino acids, 8-16 parts of taurine, 15-25 parts of L-arginine, 20-25 parts of glutamine, 10-20 parts of medium chain triglycerides and 35-40 parts of auxiliary materials.
The auxiliary materials comprise 10-25 parts of isomaltooligosaccharide, 10-25 parts of glucose, 2-6 parts of edible essence and 6-18 parts of vitamins, wherein the vitamins comprise 16-10 parts of vitamin B, 22-4 parts of vitamin B and 62-4 parts of vitamin B.
As a further preferable scheme of the invention, the composition for improving the exercise myocardial injury comprises the following raw materials, by weight, 25 parts of soybean peptide powder, 15 parts of branched-chain amino acid, 10 parts of taurine, 20 parts of L-arginine, 25 parts of glutamine, 20 parts of medium chain triglyceride and 35 parts of auxiliary materials.
The auxiliary materials comprise 25 parts of isomaltooligosaccharide, 25 parts of glucose, 6 parts of edible essence and 18 parts of vitamins, wherein the vitamins comprise 18 parts of vitamin B, 22 parts of vitamin B and 62 parts of vitamin B.
Further, the myocardial injury refers to myocardial alignment disorder, myofiber swelling and myocardial cell degeneration necrosis caused by high exercise load.
Further, the preparation method of the soybean peptide powder comprises the steps of mixing soybean protein powder and deionized water according to a weight ratio of 1:10, heating to 90 ℃ for 30 minutes, adjusting pH to 7.0, adding 2% of alkaline protease and neutral protease compound enzyme solution when the temperature is reduced to 50 ℃, carrying out enzymolysis for 5 hours at constant temperature, filtering after the reaction is finished, taking filtrate, carrying out vacuum concentration treatment, and finally obtaining the soybean peptide powder by a spray drying method.
Further, the composition for improving the exercise myocardial damage is in the form of capsules, tablets, pills, powder, oral liquid, granules or beverage.
Further, the components are weighed according to the parts by weight, mixed and stirred uniformly, and taken before the high-strength exercise of the operators.
The glutamine used in the invention can provide necessary nitrogen source for organisms, promote the synthesis of protein in muscle cells, promote the growth and differentiation of the muscle cells through the cell compatibilization, and stimulate the secretion of growth hormone, insulin and testosterone to make the organisms in a synthetic state.
The arginine used in the invention can effectively improve immunity, promote the immune system to secrete endogenous substances such as natural killer cells, phagocytes, leukotriene (interleukin-1) and the like, and is beneficial to anticancer cells and preventing virus infection. In addition, arginine is a precursor of ornithine (L-ornithine) and proline (L-proline), and proline is an important element constituting collagen, so that the arginine is supplemented to the health care of serious trauma, burn and the like which needs a large amount of tissue repair, has obvious help, and has the effect of reducing infection and inflammation.
Vitamin B1, also known as thiamine, used in the invention is the earliest discovered water-soluble vitamin, and is mainly used as coenzyme to maintain normal glucose metabolism of human body, convert glucose into heat, provide energy for the body, protect and regulate the nervous system, improve mental state, regulate water-salt metabolism, maintain heart function, promote gastrointestinal peristalsis, increase appetite and improve dyspepsia.
Compared with the prior art, the invention has the following beneficial effects:
(1) Aiming at the characteristics of vigorous metabolism, huge physical consumption and myocardial injury of athletes and military operators, the composition is prepared into tablets or capsules by reasonably proportioning soybean peptide powder, branched chain amino acid, taurine, L-arginine, glutamine, medium chain triglyceride, oligomeric maltose, glucose, edible essence, vitamin B1, vitamin B2 and vitamin B6, so that the myofiber tissues are effectively improved, and important tissues such as heart, muscle and the like of the crowd are protected.
(2) Experiments prove that the composition can obviously reduce the serum myocardial injury marker level (cardiac troponin T, serum creatine kinase and superoxide dismutase) and relieve the oxidative stress level so as to achieve the purpose of protecting cardiac muscle, and the protective effect of the low, medium and high dose composition on the exercise cardiac muscle can be observed in pathological examination.
(3) The composition has wide sources of various raw materials and auxiliary materials, and can be produced by a mature method, so that the pharmaceutical composition is convenient for industrialized mass production. In addition, the composition can be prepared into capsules, tablets, oral liquid, beverages or other dosage forms by changing the bearing mode of the composition, so that the composition has stable curative effect and is convenient to use.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the specific embodiments, and it should be noted that the following specific embodiments are described in detail as to the preferred embodiments of the present patent, but the present patent is not limited to the above embodiments, and various changes may be made within the knowledge of those skilled in the art without departing from the technical scope of the present patent, and the following components are calculated according to parts by weight unless specifically noted.
In embodiments of the invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The mice used in the following examples were male, purchased from Shanghai Bikeke wing biotechnology Co., ltd (animal license number SCXK (Shanghai) 2023-0009), and kept in the naval specialty medical center animal house. The raw materials and the reagents are all purchased in the market. The experimental methods or related detection methods employed in the examples below employ methods known in the art, unless otherwise indicated.
It should be noted that cardiac troponin T (cTnT), serum Creatine Kinase (CK), lactate Dehydrogenase (LDH) are markers of myocardial damage, with troponin being the most sensitive and specific biochemical marker currently used for diagnosis of myocardial damage. Since cardiac myocyte injury releases troponin, plasma troponin levels can rise at the earliest within 3-4 hours after myocardial injury and can continue to rise for days, creatine kinase can be detected in the blood after myocardial injury, generally rises within 6 hours after injury, peaks at 12-24 hours, and falls to baseline levels at 24-48 hours.
Example 1
The soybean peptide powder is prepared from soybean peptide powder 25g, branched chain amino acid 15g, taurine 10g, L-arginine 20g, glutamine 25g, medium chain triglyceride 20g, isomaltooligosaccharide 25g, glucose 25g, edible essence 6g, vitamin B18g, vitamin B22g and vitamin B62g by stirring thoroughly and uniformly.
The preparation method of the soybean peptide powder comprises the following steps:
Mixing soybean protein powder and deionized water according to a weight ratio of 1:10, heating to 90 ℃, maintaining for 30 minutes, adjusting the pH value to 7.0, adding 2% of alkaline protease and neutral protease compound enzyme solution when the temperature is reduced to 50 ℃, carrying out constant-temperature enzymolysis for 5 hours, filtering after the reaction is finished, taking filtrate, carrying out vacuum concentration treatment, and finally obtaining the soybean peptide powder by using a spray drying method.
Example 2
The soybean peptide powder is prepared from 15g of soybean peptide powder, 15g of branched chain amino acid, 16g of taurine, 15g of L-arginine, 25g of glutamine, 15g of medium chain triglyceride, 25g of isomaltooligosaccharide, 25g of glucose, 6g of edible essence, 110g of vitamin B, 24g of vitamin B and 64g of vitamin B;
The preparation method of the soybean peptide powder is the same as that of example 1.
Example 3
The soybean peptide powder is prepared from soybean peptide powder 25g, branched chain amino acid 15g, taurine 10g, L-arginine 25g, glutamine 25g, medium chain triglyceride 20g, isomaltooligosaccharide 25g, glucose 25g, edible essence 6g, vitamin B16g, vitamin B22g and vitamin B62g;
The preparation method of the soybean peptide powder is the same as that of example 1.
Example 4
The soybean peptide powder is prepared from soybean peptide powder 25g, branched chain amino acid 15g, taurine 10g, L-arginine 15g, glutamine 25g, medium chain triglyceride 20g, isomaltooligosaccharide 25g, glucose 25g, edible essence 6g, vitamin B110g, vitamin B22g and vitamin B62g;
The preparation method of the soybean peptide powder is the same as that of example 1.
Example 5
The difference with example 1 is that the raw material formula comprises 10g of isomaltooligosaccharide, 10g of glucose and 2g of edible essence.
Effect test:
(1) Experimental grouping:
mice were divided into 5 groups of 10 animals each, normal, model, low, medium and high dose (using the raw material formulation of example 1) and each group was repeated 5 times.
(2) The experimental method comprises the following steps:
The experimental mice were first fed adaptively and the experiment was started 7 days later.
All mice except the normal group were run on a treadmill at a treadmill speed of 15m/min and a current stimulation intensity of 4.5mA for 30 minutes each time for 1-7d of running adaptation training. 8-28d formal experiments, except for normal groups, all mice were subjected to exhaustion experiments, first 10min at a speed of 10m/min, 15m/min for 10min, then 20m/min for exhaustion, and the current stimulation intensity was 4.5mA.
The administration time is 1 hour before each training, the administration dose is 3g/kg bw of the high dose group, 1.5g/kg bw of the medium dose and 0.75g/kg bw of the low dose.
The judgment standard of the exhaustion is that the stimulation is not effective, and the sign after running is stopped is characterized by the exhaustion such as the prone position can not be turned over freely, the breath is rapid, the mind is tired, the reaction to the physiological stimulation is slow, even no reaction exists, and the like. All animals were sacrificed the last day, blood was collected from the mouse ocular plexus vein, and biochemical, cardiomyopathy and hematological indices were measured.
The mice were sampled from the heart, cut in sagittal plane along the longitudinal axis, half of the hearts were fixed, paraffin-embedded, sectioned to observe pathological changes, the other half was homogenized on ice with 4-degree pre-chilled PBS, centrifuged at 12000rpm for 15min to collect supernatant, and the total protein concentration was measured by BCA method, while the SOD activity and MDA level in the supernatant were measured and normalized by dividing the total protein concentration to obtain relative SOD activity and MDA concentration.
(3) Experimental results:
A. effect of the composition on serum myocardial injury markers (see fig. 1 and 2):
After long-term high-load exercise, the myocardial calpain T (cTnT) and serum Creatine Kinase (CK) contents of a mouse model group are obviously increased (P < 0.01), and the low, medium and high-dose groups of the composition are obviously reduced (P < 0.01) compared with the model group, and no obvious difference exists between the low, medium and high-dose groups and a normal group, so that the composition can obviously inhibit the increase level of the troponin T and the serum creatine kinase caused by the exercise and has obvious improvement effect on myocardial injury caused by the exercise;
For Lactate Dehydrogenase (LDH), the lactate dehydrogenase content of the mouse model group increased after long-term high-load exercise, which was not significantly different from the normal group, and the composition was decreased in the low, medium, and high dose groups compared to the model group, but the difference was not significant.
B. effect of the composition on myocardial tissue oxidative stress levels (see fig. 3):
Compared with the normal group, the superoxide dismutase (SOD) level in the myocardial tissue of the mice in the model group is obviously reduced (P < 0.01), and the SOD level reduction caused by exercise can be obviously increased in the low, medium and high dose groups of the composition.
Malondialdehyde (MDA) levels in myocardial tissue were significantly elevated (P < 0.01) in mice from the model group compared to the normal group, and the composition significantly reduced MDA levels induced by exercise in low, medium and high dose groups.
C. effect of composition on myocardial morphology (see fig. 4):
after the test is finished, the normal control group has complete myocardial structure, ordered arrangement and clear transverse lines, and the interstitial tissue is not subjected to vasodilation and inflammatory cell infiltration;
The myocardial arrangement of the model group is disordered, a large amount of myofiber swelling structures are fuzzy, myocardial cell degeneration necrosis is locally visible, and bleeding and small amount of inflammatory cell infiltration are visible in the interstitium;
low dose group, still visible part of myofiber swelling, myocardial hemorrhage, local myocardial inflammatory cell infiltration and mild fibrosis;
Myocardial hemorrhage, myocardial fibrosis and inflammatory cell infiltration are seen in the medium dose group;
The high dose group showed no significant abnormalities other than a small amount of cardiomyocyte swelling.
According to the experimental results, the composition can obviously reduce the serum myocardial injury marker level and the oxidation stress level so as to achieve the purpose of protecting the cardiac muscle, and the improvement effect of the low, medium and high dose composition on the exercise cardiac muscle can be observed in pathological examination.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. The present invention is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.