CN115317528A - Application of ginseng fruit total saponin and medicine for resisting myocardial fibrosis - Google Patents
Application of ginseng fruit total saponin and medicine for resisting myocardial fibrosis Download PDFInfo
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- CN115317528A CN115317528A CN202210921892.3A CN202210921892A CN115317528A CN 115317528 A CN115317528 A CN 115317528A CN 202210921892 A CN202210921892 A CN 202210921892A CN 115317528 A CN115317528 A CN 115317528A
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- myocardial
- fibrosis
- myocardial fibrosis
- total saponins
- collagen
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/25—Araliaceae (Ginseng family), e.g. ivy, aralia, schefflera or tetrapanax
- A61K36/258—Panax (ginseng)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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Abstract
The invention discloses application of ginseng fruit total saponin in preparing a medicament for resisting myocardial fibrosis and a medicament for resisting myocardial fibrosis. The invention adopts the ginseng fruit total saponin to prepare a safe and effective treatment medicament, and can inhibit the pathological process of myocardial fibrosis after myocardial infarction.
Description
Technical Field
The invention relates to the field of cardiovascular disease drugs, in particular to application of total saponins of ginseng fruit and drugs for resisting myocardial fibrosis.
Background
Myocardial fibrosis is a common pathological link in the development of various cardiovascular diseases (such as myocardial infarction, hypertension, cardiomyopathy and valvular diseases) to the later stage and is an important reason for the continuous development and the irreversible reversion of ventricular remodeling. The continued development of myocardial fibrosis can severely affect the normal systolic and diastolic function of the heart, ultimately leading to chronic heart failure, myocardial infarction, malignant arrhythmia and even sudden death. Myocardial fibrosis is closely related to the prognosis of cardiovascular disease.
At present, inhibitors of the renin-angiotensin-aldosterone system are the primary drugs for the treatment of myocardial fibrosis. In a study of 34 hypertensive patients, endocardial biopsy revealed a reduction in both left ventricular stiffness and fibrosis in patients receiving losartan treatment. Another biopsy study found that lisinopril reduced the cardiac collagen volume fraction compared to hydrochlorothiazide. Cardiac nmr showed that late gadolinium enhancement was significantly reduced in a group of losartan-treated hypertrophic cardiomyopathy patients, suggesting that RAAS inhibitors may inhibit fibrosis. Aldosterone receptor antagonists have a similar anti-myocardial fibrosis effect. Spironolactone can restore the normal collagen content in a mouse model of hypertrophic cardiomyopathy by antagonizing aldosterone. In addition, aldosterone receptor antagonists have a favorable clinical effect in a variety of diseases associated with myocardial scarring such as congestive heart failure, hypertension, coronary heart disease. Spirolactone can reduce the content of C-terminal propeptide and amino-terminal propeptide of serum type I procollagen and improve the diastolic function of the left ventricle in 80 patients with metabolic syndrome. After the patients with failure are treated by the optimal medicament comprising the inhibitor of the renin-angiotensin-aldosterone system in the clinical practice center, the survival rate is still lower for 5 years, and obvious myocardial fibrosis still exists, which indicates that the myocardial fibrosis cannot be well improved by only depending on the inhibition of the renin-angiotensin-aldosterone system.
Therefore, the invention is provided.
Disclosure of Invention
The invention aims to provide application of ginseng fruit total saponin and a medicine for resisting myocardial fibrosis, and aims to solve the problem that medicines in the related art cannot well improve myocardial fibrosis after myocardial infarction.
In order to solve the above problems, in a first aspect, an embodiment of the present invention provides an application of total saponins of panax ginseng in preparing a medicament for resisting myocardial fibrosis, wherein the medicament takes total saponins of panax ginseng as an effective component for resisting myocardial fibrosis.
Further, the myocardial fibrosis includes acute myocardial infarction-induced myocardial histopathological injury.
Further, the acute myocardial infarction-induced myocardial histopathological injury includes myocardial collagen fiber deposition after an acute myocardial infarction.
Further, the anti-myocardial fibrosis includes reducing the expression of myocardial alpha-SMA, collagen I and Collagen III.
Furthermore, the animal dosage of the total saponins of panax ginseng is 19.5mg/kg/d to 39mg/kg/d.
Further, the animal administration amount of the total saponins of panax ginseng fruits is 39mg/kg/d of high dose or 19.5mg/kg/d of low dose.
The total saponins of herba Herminii can be obtained by removing the capsule from the vibration source capsule and retaining the powder therein. The following method may also be employed: taking the ginseng fruit pulp, centrifuging, and centrifuging the centrifugate for later use. Extracting the centrifuged pomace with water, and filtering the extractive solution for later use. Adsorbing centrifugate and extractive solution with macroporous resin column, washing with water after adsorption saturation, eluting with ethanol solution, recovering ethanol from eluate under reduced pressure, collecting eluate, drying under reduced pressure, and pulverizing.
In a second aspect, the embodiments of the present invention further provide a medicament for resisting myocardial fibrosis, which comprises a therapeutically effective amount of total saponins of panax ginseng fruits and pharmaceutical excipients. The adjuvant includes, but is not limited to, an adhesive, a wetting agent, a dispersing agent, a surfactant, etc., and more specifically, may include, but is not limited to, the following conventional adjuvants: starch, dextrin, pregelatinized starch, microcrystalline cellulose, hydroxypropyl cellulose, chitosan, carbomer, sodium carboxymethylcellulose, povidone, polyethylene glycol, crospovidone, aerosil, citric acid, mannitol, etc. The dosage forms prepared by adding auxiliary materials comprise but are not limited to pills, tablets, capsules, granules and other appropriate conventional dosage forms.
Furthermore, the animal dosage of the total saponins of panax ginseng is 19.5mg/kg/d to 39mg/kg/d.
Further, the animal administration amount of the total saponins of panax ginseng fruits is 39mg/kg/d of high dose or 19.5mg/kg/d of low dose.
Compared with the prior art, the invention adopts the ginseng fruit total saponin to prepare a safe and effective treatment medicament, and can inhibit the pathological process of myocardial fibrosis after myocardial infarction.
Drawings
FIG. 1A is a plan view of representative cardiac ultrasounds in groups of mice 2 weeks after acute myocardial infarction;
FIG. 1B is a plan view of typical cardiac ultrasonography measurements in groups of mice 4 weeks after acute myocardial infarction;
FIG. 2 is a graph showing the results of the expression levels of CK-MB, ALT and S-cr in the sera of various groups of mice;
FIG. 3 is a graph of the results of HE staining of myocardial tissues of each group (. Times.400);
FIG. 4 is a graph of Masson staining results (200 times) for each group of myocardial tissues;
FIG. 5 is a graph showing the results of measurement of myocardial CVF in mice of each group;
FIG. 6 is a graph showing the results of expression of myocardial α -SMA, collagen I and Collagen III.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and to implement the present invention, and are not intended to limit the scope of the present invention in any way.
Myocardial fibrosis refers to excessive deposition of collagen fibers in a normal tissue structure of a cardiac muscle caused by various reasons, wherein the collagen concentration and the collagen volume fraction are remarkably increased, and various types of collagen are in imbalance proportion, so that the structural disorder, the stiffness increase and the ventricular diastolic dysfunction of the cardiac muscle are caused. It is a common pathological change in the development of many cardiovascular and related diseases to a certain stage. Myocardial infarction can cause massive necrosis of billions of myocardial cells in a short time. Since human cardiomyocytes are rarely regenerated, massive cardiomyocyte death results in repair fibrosis to maintain the integrity of the infarcted ventricular structure and prevent cardiac rupture, but excessive myocardial fibrosis can lead to adverse cardiovascular events.
In addition, myocardial fibrosis is a common pathological change in the development of most cardiovascular diseases to a stage often accompanied by systolic and diastolic dysfunction, arrhythmia and cardiovascular adverse events. Myocardial fibrosis can affect cardiac function in several ways, such as perivascular fibrosis can affect coronary blood supply, leading to ischemia, hypoxia and even necrosis of myocardial tissues; the great deposition of collagen fibers leads to the obvious increase of the hardness of the wall of the chamber, the reduction of the compliance, the reduction of the cardiac muscle relaxation and the synchronism, and the reduction of the cardiac function; the massive deposition of collagen fibers in the interstitium can affect the conduction of myocardial electrical signals, and easily form reentry loops, conduction blocks and the like, thereby causing arrhythmia. Myocardial fibrosis can ultimately lead to refractory heart failure, myocardial infarction, arrhythmia and even sudden death.
Myocardial fibrosis occurs in various degrees in many heart diseases such as hypertensive myocardial hypertrophy, myocardial remodeling after coronary heart disease and myocardial infarction, diabetic heart disease, restrictive cardiomyopathy, dilated cardiomyopathy, rheumatic heart disease, congenital heart disease, and the like. Myocardial fibrosis is classified into reactive fibrosis and repair fibrosis according to the presence or absence of myocardial cell necrosis and scar formation. Reactive fibrosis occurs around blood vessels or in the interstitium of the myocardium, and is the reaction of the myocardium to overload, and is commonly seen in hypertension, hypertrophic cardiomyopathy, aortic stenosis, hyperglycemia, and the like; prosthetic fibrosis is a response to myocyte necrosis, commonly seen in myocardial infarction, myocarditis, and the like.
As mentioned above, no targeted therapeutic drug has been found at present because the mechanism of occurrence of myocardial interstitial fibrosis is very complex. The research of the current western medicines mainly focuses on angiotensin converting enzyme inhibitors, angiotensin receptor antagonists, endothelin receptor antagonists, aldosterone receptor antagonists, antioxidants, calcium antagonists, beta-receptor blockers, and the like. Among these drugs, studies of only angiotensin converting enzyme inhibitors and angiotensin receptor antagonists have been strongly documented, but they have not been able to completely inhibit the occurrence of myocardial interstitial fibrosis. Endothelin receptor antagonists, antioxidants are still in the experimental stage, and whether calcium antagonists, aldosterone receptor antagonists, beta-blockers have anti-fibrotic effects remains controversial.
Based on the above, the embodiment of the invention provides an anti-myocardial fibrosis drug, the active ingredient is total saponins of ginseng fruit, in the following embodiment, the source of the total saponins of ginseng fruit is a vibration source capsule (batch number: national standard character Z22026091), wherein only the powder in the capsule is removed, namely the total saponins of ginseng fruit, and after the capsule is collected in a container, the drug taking the total saponins of ginseng fruit as the active ingredient is obtained by weighing according to the specific dosage below.
Animal experimental methods and data
1 method of experiment
Establishing a C57BL/6 mouse acute myocardial infarction model, continuously intragastrically administering the total saponins of ginseng fruit for 4 weeks, performing heart ultrasonic detection on the heart function of the mouse, taking materials, performing histopathological detection, detecting the serological indexes of the mouse by adopting an ELISA method, and detecting the expression of heart-related proteins and genes of the mouse by Western blot and qRCR technologies.
1.1 preparation of mouse acute myocardial infarction model
According to the pre-modeling method of the subject group, a mouse acute myocardial infarction model prepared by adopting the technology of ligating the anterior descending branch of the left coronary artery induces the occurrence of myocardial fibrosis, and the method comprises the following specific steps:
(1) Anesthesia and disinfection: depilatory cream was used to depilate the neck and chest of mice, isoflurane was continuously ventilated and anesthetized, the mice were fixed on the operating table in supine position, and neck and chest were sterilized with 75% alcohol.
(2) Opening the chest: cutting skin at the 3 rd to 4 th intercostal apex of the left side with the length of 1-2cm, separating hypodermis and chest wall muscle layer by layer, and exposing ribs. And slightly opening the intercostal space by using hemostatic forceps, breaking the pleura, fully exposing the heart, slightly squeezing the right chest, and quickly squeezing out the heart along the apex direction.
(3) Ligation: parallel to the anterior inferior corner of the left auricle, at the 1/3 projection position on the anterior descending branch of the left coronary artery, ligating the anterior descending branch with 8-0 suture needle, with the depth of insertion controlled at 1-2mm and the width at about 1.5 mm.
(4) Resetting and suturing: rapidly resetting heart, discharging air from thoracic cavity, closing thoracic layer by layer, and suturing skin with 6-0 suture needle. The mice were placed in an environment of 30 ℃ for resuscitation.
The operation of the sham operation group was the same as that of the model group except that the anterior descending branch was not ligated after the needle was inserted.
1.2 animal grouping and administration
The mice with successfully modeled acute myocardial infarction were randomly divided into 3 groups: model group (M), low-dose group (L) of total saponins of panax ginseng fruit, high-dose group (H) of total saponins of panax ginseng fruit, 10 in each group. The sham group (S) 10. The intragastric administration is started the next day after the operation, the intragastric administration is carried out on the low-dose group by 19.5mg/kg/d of the ginseng fruit total saponin, the intragastric administration is carried out on the high-dose group by 39mg/kg/d of the ginseng fruit total saponin (the ginseng fruit total saponin is powder in a vibration source capsule), and the intragastric administration is carried out on the pseudo-operation group and the model group by the normal saline with the same volume. Gavage was continued for 4 weeks and body weight was measured weekly. After 4 weeks, blood was collected from orbital venous plexus after mice were anesthetized with isoflurane, hearts were removed after PBS infusion, and connective tissues were stripped. Part of the protein is fixed in 4% paraformaldehyde, and the rest is temporarily stored in liquid nitrogen, and then transferred to-80 ℃ for storage, so as to be used for detecting protein and gene.
1.3 echocardiography testing
Cardiac ultrasound measurements were performed on the mice 2 and 4 weeks after AMI using a Vevo 2100 high resolution imaging system, and Left Ventricular Ejection Fraction (LVEF) and Left ventricular short axis shortening (LVFS) were calculated according to the formulas. LVEF = (left ventricular end diastolic volume-left ventricular end systolic volume)/left ventricular end diastolic volume × 100%, LVFS = (left ventricular end diastolic inner diameter-left ventricular end systolic inner diameter)/left ventricular end diastolic inner diameter × 100%. Cardiac function was assessed.
1.4 serological assays
After the mice were anesthetized with isoflurane, blood was collected from orbital venous plexus and allowed to stand at room temperature for 20min. Centrifuging at 4 deg.C at 3000 rpm, separating serum, and storing at-80 deg.C. Detecting serum creatine kinase MB (CK-MB) by using an ELISA method to observe the myocardial ischemia condition; serum creatinine (S-Cr) and serum alanine transaminase (ALNASE) were used to observe the liver and kidney function.
1.5 histopathological examination
Observing the arrangement of ischemic myocardial tissues and the infiltration condition of inflammatory cells by hematoxylin-eosin (HE) staining; masson stain (Masson) observed ischemic myocardial fibrosis collagen deposition.
1.6 Western blot detection
Detection of myocardial fibrosis-associated proteins in ischemic myocardium by Western Blot: expression of Collagen I (Collagen I), collagen III (Collagen III) and alpha-Smooth muscle actin (. Alpha. -SMA).
2 data of experiments
2.1 Total saponins of Panax ginseng C.A. Meyer improves cardiac function after acute myocardial infarction
The ultrasonic detection of the heart is carried out on 2 weeks and 4 weeks after the acute myocardial infarction of the mice respectively. Compared with the Sham group, the Model group LVEF and LVFS are obviously reduced (P is less than 0.01) in both detection results, which indicates that the modeling of the acute myocardial infarction Model is successful. Compared with the Model group, the LVEF and LVFS of the patient are obviously increased (P is less than 0.01) after the treatment of low and high doses of the total saponins of the ginseng fruits, but the statistical difference (P is more than 0.05) is not generated between the low and high concentration of the saponins of the ginseng fruits (tables 1A-1B and figures 1A-1B), which indicates that the total saponins of the ginseng fruits can obviously improve the cardiac dysfunction induced by acute myocardial infarction.
Note: in comparison to the Sham group, * p is less than 0.01; in comparison with the Model set, # P<0.01。
(in Table 1A, model group is represented by M, sham group is represented by S, low dose group is represented by L, and high dose group is represented by H.)
TABLE 1B ultrasonic examination of 4 weeks post-acute myocardial infarction heart of each group of mice (n=8)
Note: in comparison to the Sham group, * p is less than 0.01; in comparison with the Model set, # P<0.01。
2.2 Total saponins of herba Herminii can relieve myocardial injury after acute myocardial infarction, and no toxic and adverse side effects of liver and kidney
The results of the measurement of the serum myocardial damage marker CK-MB, and the liver and kidney function markers ALT and S-cr of each group of mice are shown in Table 2 and FIG. 2. Compared with the Sham group, the serum CK-MB level of the Model group is obviously increased (P is less than 0.01), which indicates that myocardial damage still exists after 4 weeks of acute myocardial infarction. After the low-concentration and high-concentration ginseng fruit total saponins are subjected to dry prediction, the CK-MB level is obviously reduced (P is less than 0.05), and the low-concentration and high-concentration ginseng fruit total saponins have no obvious difference (P is more than 0.05), which indicates that the ginseng fruit total saponins can reduce myocardial damage caused by ischemia. The ALT content in serum has no statistical difference (P is more than 0.05) between groups, which indicates that the total saponins of the ginseng fruit have no hepatotoxicity at the dose of 39mg/kg/d. Compared with the Sham group, the serum S-cr level of the Model group is obviously increased (P is less than 0.05), which indicates that myocardial infarction causes renal function injury, and the low and high dose of the total ginsenoside group has no statistical difference (P is more than 0.05) compared with the Model group, which indicates that the total ginsenoside has no renal toxicity at the dose of 39mg/kg/d.
TABLE 2 CK-MB, ALT and S-cr expression levels (. + -. S, n = 6) in each group of mice
Note: p < 0.01 compared to Sham group; in comparison with the Sham group, § p is less than 0.05; in comparison with the Model set, # p is less than 0.01; in comparison with the Model set, & P<0.05。
2.3 Total saponins of Panax Ginseng fruit for improving histopathological changes of heart after myocardial infarction
Pathological changes in myocardial tissue following acute myocardial infarction were assessed using HE staining and the results are shown in figure 3. The Sham group has normal myocardial tissue structure, regular muscle fiber trend, clear texture, plump cytoplasm and uniform and consistent myofilament gaps. The Model group has disordered myocardial structure, thick myofilaments, waveform change, unclear texture and infiltration of a large number of inflammatory cells. The change of the myocardial histopathology of the low and high dose ginseng fruit total saponin group is obviously improved.
The degree of myocardial fibrosis after acute myocardial infarction was assessed using Masson staining and the results are shown in figure 4. After Masson staining, collagen fibers appear blue and muscle fibers appear red. A large amount of collagen fiber deposition exists in the myocardial tissue of the Model group, and the collagen deposition is obviously reduced after the ginseng fruit total saponin is given. The volume fraction (CVF) of Collagen is measured by Image J software, and the results show that the CVF of the Model group is obviously increased (P is less than 0.01) and the CVF of the ginsenoside Re dry pre-group is obviously reduced (P is less than 0.05) compared with the Model group compared with the Sham group (figure 5), which indicates that the total saponins of ginseng fruit can improve the myocardial tissue pathological damage induced by acute myocardial infarction.
2.4 expression of fibrosis-associated protein after acute myocardial infarction inhibited by general ginsenoside
Cardiac Fibroblasts (CFs) are the main effector cells of myocardial fibrosis, and under the stimulation of pathological conditions (such as ischemia, pressure overload and inflammation), CFs are activated to transdifferentiate into myofibroblasts with secretion and contraction functions. Activated myofibroblasts are capable of secreting large amounts of extracellular matrix proteins and can regulate matrix remodeling by producing proteases and their inhibitors. alpha-SMA is a specific protein for differentiation of CFs into myofibroblasts. Myocardial fibrosis is mainly caused by the diffuse accumulation of Collagen i and Collagen iii in the interstitium, and thus the degree of myocardial fibrosis can be estimated by measuring their content. The expression conditions of the myocardium alpha-SMA, collagen I and Collagen III are detected by using a Western blot method, and the result is shown in figure 6. Compared with the Sham group, the Model group has obviously increased alpha-SMA expression (P is less than 0.01), which indicates that myocardial ischemia activates myofibroblasts; after the low-dose and high-dose of the total saponins of panax ginseng are subjected to dry prediction, the expression of alpha-SMA is remarkably reduced (P is less than 0.01), and the two groups of the total saponins of panax ginseng have no statistical difference (P is more than 0.05), which indicates that the total saponins of panax ginseng can inhibit the activation of myofibroblasts induced by ischemia. Similarly, acute myocardial infarction results in the overexpression of Collagen I and Collagen III in myocardial tissues, and the total saponins of the ginseng fruits can obviously inhibit the tendency, and the two groups of the total saponins of the ginseng fruits have no statistical difference (P is more than 0.05).
The inventive concept is explained in detail herein using specific examples, which are only provided to help understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. Application of herba Herminii total saponin in preparing medicine for resisting myocardial fibrosis is provided.
2. The use of claim 1, wherein the myocardial fibrosis comprises acute myocardial infarction-induced myocardial histopathological injury.
3. The use according to claim 2, wherein the acute myocardial infarction-induced myocardial histopathological injury comprises myocardial collagen fibre deposition following an acute myocardial infarction.
4. The method of claim 1, wherein said anti-myocardial fibrosis comprises decreased expression of myocardial α -SMA, collagen i and Collagen iii.
5. The use of claim 1, wherein the animal dose of the total saponins of panax ginseng fruit is 19.5mg/kg/d to 39mg/kg/d.
6. The use of claim 5, wherein the animal dose of total saponins of panax ginseng is a high dose of 39 mg/kg/day or a low dose of 19.5 mg/kg/day.
7. The medicine for resisting myocardial fibrosis is characterized by comprising effective treatment amount of ginseng fruit total saponin and pharmaceutical auxiliary materials.
8. The anti-myocardial fibrosis medicament of claim 7, wherein the animal administration amount of the total saponins of panax ginseng is 19.5-39 mg/kg/d.
9. The anti-myocardial fibrosis drug of claim 8, wherein the animal administration amount of the total saponins of panax ginseng is 39mg/kg/d at the high dose or 19.5mg/kg/d at the low dose.
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