CN109331049B - New use of Ganoderma lucidum spore oil and/or pharmaceutical composition containing Ganoderma lucidum spore oil - Google Patents
New use of Ganoderma lucidum spore oil and/or pharmaceutical composition containing Ganoderma lucidum spore oil Download PDFInfo
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- CN109331049B CN109331049B CN201811145935.3A CN201811145935A CN109331049B CN 109331049 B CN109331049 B CN 109331049B CN 201811145935 A CN201811145935 A CN 201811145935A CN 109331049 B CN109331049 B CN 109331049B
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- ganoderma lucidum
- lucidum spore
- spore oil
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Abstract
The invention discloses application of ganoderma lucidum spore oil and/or a pharmaceutical composition containing ganoderma lucidum spore oil in preparing functional food and medicines with the effect of preventing myocardial fibrosis caused by aortic valvular disease, and the invention discloses new application of ganoderma lucidum spore oil and/or a pharmaceutical composition containing ganoderma lucidum spore oil in preventing myocardial fibrosis caused by aortic valvular disease for the first time, and provides a new method for preventing myocardial fibrosis caused by aortic valvular disease.
Description
Technical Field
The invention belongs to the technical field of ganoderma lucidum spore oil, and particularly relates to application of ganoderma lucidum spore oil and/or a pharmaceutical composition containing ganoderma lucidum spore oil in preparation of functional food and medicines with the effect of preventing myocardial fibrosis caused by aortic valvular disease.
Background
Myocardial fibrosis is induced by diseases such as hypertension, atherosclerosis, valvular disease, hyperlipidemia, atrial fibrillation, and the like, and the disease mechanism involves myofibroblast activation, collagen concentration increase, extracellular matrix excessive deposition, glycolipid metabolism abnormality, and the like. Myocardial fibrosis is ultimately classified as cardiac remodeling, systolic-diastolic dysfunction and heart failure. Early prevention is of great significance as a progressive disease, but currently there is no reliable method for preventing myocardial fibrosis. In the innovative research and development of myocardial fibrosis prevention drugs, based on the fact that the inducers are various and the mechanism is complex, the mechanism of the drug action needs to be accurately evaluated by aiming at the specific inducers. The medicine of the invention aims at preventing myocardial fibrosis caused by aortic valvular disease, and proves the prevention effect of the medicine from multiple mechanisms.
After aortic valve pathology occurs, the heart becomes overloaded with excess blood retention and eventually develops myocardial fibrosis. Aortic valvular lesions are the third most common cardiovascular disease next to hypertension and coronary heart disease. The incidence rate of aortic valvular disease counted in the United states in the elderly is as high as 2.5%, and the incidence rate of aortic valvular disease in China is higher than that in the United states according to the conjecture of parts of China. As China enters an aging society, the incidence of various cardiovascular diseases is expected to be continuously increased, and the cardiovascular diseases become a great public health problem in China, the innovative development of early prevention strategies has great significance.
The Ganoderma effective components can be obtained by water extraction, alcohol extraction, supercritical carbon dioxide extraction, etc., and comprise Ganoderma polysaccharides, Ganoderma triterpene/sterol, and fatty acid. Research shows that the ganoderma lucidum extract can treat myocardial fibrosis, but the application of the ganoderma lucidum extract (particularly oily components) in preventing myocardial fibrosis, particularly myocardial fibrosis caused by aortic valvular disease is not available.
The ganoderma lucidum variety recorded in the pharmacopoeia is ganoderma lucidum and ganoderma sinense at present, and in the difference analysis of the two varieties, research shows that ganoderma sinense has more advantages in reducing triglyceride than ganoderma sinense, and because the prevalence rate of hyperlipidemia in China is continuously increased, the ganoderma sinense has more clinical application value.
Disclosure of Invention
The invention aims to provide application of ganoderma lucidum spore oil and/or a pharmaceutical composition containing ganoderma lucidum spore oil in preparation of functional food and medicines with the effect of preventing myocardial fibrosis caused by aortic valvular disease.
The above object of the present invention is achieved by the following technical solutions: application of Ganoderma lucidum spore oil and/or pharmaceutical composition containing Ganoderma lucidum spore oil in preparing functional food and medicine for preventing myocardial fibrosis caused by aortic valvular disease is provided.
As a preferred technical scheme, the ganoderma lucidum spore oil is prepared by the following method:
(1) selecting Ganoderma lucidum spore powder, performing ultrasonic treatment, freezing the Ganoderma lucidum spore powder with liquid nitrogen for multiple times, rewarming, adding neutral protease for enzymolysis, performing enzyme deactivation, neutralization, filtration and drying treatment after enzymolysis to obtain pretreated Ganoderma lucidum spore powder;
(2) and performing supercritical extraction on the pretreated ganoderma lucidum spore powder by adopting carbon dioxide to obtain ganoderma lucidum spore oil.
In the method for preparing ganoderma lucidum spore oil:
preferably, in the step (1), the ganoderma lucidum spore powder after ultrasonic treatment is frozen for 2-4 times by liquid nitrogen, and then rewarming is carried out at 28-32 ℃.
Preferably, in the step (1), the ganoderma lucidum spore powder after ultrasonic treatment is frozen for 3 times by adopting liquid nitrogen, and then rewarming is carried out at 30 ℃.
Preferably, the addition amount of the neutral protease in the step (1) is 1800-2200U/g, the temperature during enzymolysis is 48-52 ℃, the enzymolysis time is 50-70 min, and the pH value is 7.2-7.6.
Preferably, the addition amount of the neutral protease in the step (1) is 2000U/g, the temperature during enzymolysis is 50 ℃, the enzymolysis time is 60min, and the pH value is 7.4.
And (2) adopting potassium hydroxide for neutralization in the step (1), wherein the drying temperature is 45-55 ℃, and the drying time is 8-12 h.
Preferably, potassium hydroxide is adopted for neutralization in the step (1), the drying temperature is 50 ℃, and the drying time is 10 hours.
Preferably, when the supercritical extraction is carried out by adopting carbon dioxide in the step (2), the extraction pressure is 14-16 Mpa, the temperature is 38-42 ℃, and the time is 1.5-2.5 h; the separation pressure is 5-7 Mpa, and the temperature is 28-32 ℃.
Preferably, when the supercritical extraction is carried out by adopting carbon dioxide in the step (2), the extraction pressure is 15Mpa, the temperature is 40 ℃, and the time is 2 hours; the separation pressure was 6MPa and the temperature was 30 ℃.
Preferably, the supercritical extraction is carried out by adopting carbon dioxide to obtain an extract containing the ganoderma lucidum spore oil, wherein the mass percentage of the ganoderma lucidum spore oil in the extract is 24-30%.
The ganoderma lucidum spore oil obtained by the invention comprises ganoderma lucidum total triterpenes and fatty acids, wherein the ganoderma lucidum total triterpenes account for 17-19% of the total mass of the ganoderma lucidum spore oil, the fatty acids account for 73-75% of the total mass of the ganoderma lucidum spore oil, and the fatty acids comprise oleic acid, palmitic acid and linoleic acid, wherein the oleic acid, the palmitic acid and the linoleic acid account for 60-63%, 15-16% and 12-14% of the total mass of the fatty acids.
More preferably, in the step (2), the ganoderma lucidum spore oil accounts for 27% of the total mass of the extract, the ganoderma lucidum spore oil comprises ganoderma lucidum total triterpenes and fatty acids, the ganoderma lucidum total triterpenes account for 18.7% of the total mass of the ganoderma lucidum spore oil, the fatty acids account for 73-75% of the total mass of the ganoderma lucidum spore oil, and the fatty acids comprise oleic acid, palmitic acid and linoleic acid, wherein the oleic acid, the palmitic acid and the linoleic acid account for 61.5%, 15.6% and 13.3% of the total mass of the fatty acids respectively.
The pharmaceutical composition containing ganoderma lucidum spore oil is a pharmaceutical composition with the effect of preventing myocardial fibrosis caused by aortic valvular disease, and preferably, the pharmaceutical composition containing ganoderma lucidum spore oil comprises ganoderma lucidum spore oil and auxiliary materials. Preferably, the auxiliary materials are conventional auxiliary materials adopted in the field of pharmacy.
Preferably, the dosage form of the pharmaceutical composition containing ganoderma lucidum spore oil is emulsion or soft capsule.
The invention has the following advantages: the invention discloses the new application of ganoderma lucidum spore oil and/or a pharmaceutical composition containing ganoderma lucidum spore oil in the aspect of preventing myocardial fibrosis caused by aortic valvular disease for the first time, and provides a new method for preventing myocardial fibrosis caused by aortic valvular disease.
Drawings
FIG. 1 is a time chart of administration of the anti-fibrotic drug and Ganoderma lucidum spore oil in example 2;
FIG. 2 shows the Masson trichrome staining of the left ventricle cross section of the mouse in example 2;
FIG. 3 shows the results of the ultrasonic testing of the mice of each group in example 2;
FIG. 4 shows that the prevention of Ganoderma lucidum spore oil in example 2 significantly reduced the extracellular matrix content in serum;
FIG. 5 shows the results of detecting superoxide dismutase SOD, MDA and GSH in heart tissue of each group of mice in example 2.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
The method for extracting ganoderma lucidum spore oil provided by the embodiment comprises the following steps:
(1) taking 1000g of commercial ganoderma lucidum spore powder, carrying out ultrasonic treatment, mixing the ganoderma lucidum spore powder subjected to ultrasonic treatment, freezing for 3 times by adopting liquid nitrogen, rewarming at 30 ℃, then carrying out enzymolysis by using neutral protease at 50 ℃ and pH 7.4 for 1 hour, and neutralizing by using potassium hydroxide after carrying out acid inactivated enzyme after enzymolysis.
(2) Filtering spore powder, drying at 50 ℃ for 10 hours, placing the spore powder in an extraction kettle, and performing supercritical extraction by using carbon dioxide, wherein the set conditions are as follows: extracting under 15MPa at 40 deg.c for 2 hr; ② the separation pressure is 6Mpa, the temperature is 30 ℃; (iii) CO2The speed was 20L/h.
The ganoderma lucidum spore oil is determined by a GC-MS method, the mass percentage of the ganoderma lucidum spore oil to the total mass of the extract is 27%, the ganoderma lucidum spore oil comprises total triterpenes and fatty acids, the total triterpenes of the ganoderma lucidum accounts for 18.7% of the total mass of the ganoderma lucidum spore oil, the fatty acids account for 74% of the total mass of the ganoderma lucidum spore oil, and the fatty acids comprise oleic acid, palmitic acid and linoleic acid, wherein the oleic acid, the palmitic acid and the linoleic acid account for 61.5%, 15.6% and 13.3% of the total mass of the fatty acids respectively.
Example 2
The efficacy of ganoderma lucidum spore oil in preventing myocardial fibrosis caused by aortic valvular disease is verified by experiments below.
1. Laboratory animal
After weaning, 48C 57 mice with the age of 4 weeks were bred in the SPF facility of the Guangdong laboratory animal monitoring department, the temperature and humidity in the facility were constant, the animals were irradiated with light for 12 hours every day, and the animals were automatically fed with drinking water. The experiments were performed in AAALAC certified facilities.
2. Experimental Material
(1) Ganoderma lucidum spore oil: prepared as in example 1 and stored at 4 ℃ until use.
(2) Superoxide dismutase (SOD), Malondialdehyde (MDA) and Glutathione (GSH) detection kit: purchased from Nanjing to build a bioengineering institute;
(3) HA and LN detection kit: purchased from Shanghai research medical Biotechnology, Inc.;
(4) other conventional consumables: isoflurane, 4-0 suture needle with thread, 2-0 suture needle with thread, hematoxylin, ethanol, xylene, etc.
3. Experimental methods
(1) Preparation of mouse model of myocardial fibrosis caused by aortic valvular disease
The mouse is anesthetized by 1.5% -2% isoflurane intubation, the valve position is determined by ultrasonic induction after the chest is opened, a probe is used for carrying out partial valve injury, meanwhile, stenosis is carried out at the root part of the aorta, and the successful supermode is determined by judging that the outflow of the blood flow at the rear section of the aortic stenosis part is reduced by 20% -30%. The model is used for simulating the heart blood volume and pressure overload state after aortic valvulopathy, and is characterized by myocardial fibrosis, cardiac function damage, cardiac remodeling and heart failure. The placebo group performed open-chest hand speeds without damaging valves and stenosed vessels.
(2) Grouping animals
The 72C 57 mice were randomly divided into 6 groups of 12 mice each, which were: blank control group, model control group, anti-myocardial fibrosis drug group, Ganoderma lucidum spore oil low dose prevention group (10 mg/kg/day), Ganoderma lucidum spore oil medium dose prevention group (20 mg/kg/day), and Ganoderma lucidum spore oil high dose prevention group (50 mg/kg/day). Corn oil was gavaged during the non-dosing period in the blank control group or other experimental groups, and the detailed dosing is shown in table 1. The 42 days of the first experiment were "preventive" treatments given to ganoderma lucidum spore oil, after which modeling was initiated. The second 42 days after modeling, ultrasonic testing of cardiac structural function, and after anesthesia, blood sampling and euthanasia were performed on mice, extracellular cell matrix examination was performed on serum, and histological examination was performed on heart.
TABLE 1 Ganoderma lucidum spore oil pharmacodynamic test group (n ═ 12)
The schedule of administration of the anti-fibrotic drugs and ganoderma lucidum spore oil is shown in figure 1.
(3) Morphological examination
The heart after 42 days of treatment is perfused with 4% paraformaldehyde, fixed overnight, and then subjected to conventional dehydration and paraffin embedding. Sections were 3 μm and stained using Masson trichrome staining.
Dyeing step: dissolving wax in a slicing oven, dehydrating, washing, staining with hematoxylin for 5min, and bluing for 30 min; staining with Masson ponceau for 5min, staining with glacial acetic acid, and differentiating with phosphomolybdic acid; dehydrating and transparent by using gradient ethanol and dimethylbenzene, and sealing after air drying.
And thirdly, calculating the visual field of the section with the area of the myocardial fibers between the myocardial cells being 40 times, and randomly taking the average of five visual fields. During calculation, blood vessels and cracks caused by slicing are not calculated.
The slicing results are shown in FIG. 2, and the observation in FIG. 2 shows that:
(a) the myocardial cell arrangement disorder, muscle fiber breakage and dissolution of the model control group can be seen; and the myocardial fibrosis resistant drug group, the ganoderma lucidum spore oil low-dose prevention group, the ganoderma lucidum spore oil medium-dose prevention group and the ganoderma lucidum spore oil high-dose prevention group are uniform in arrangement of myocardial cells, uniform in cytoplasmic staining, uniform in collagen tissue distribution and consistent in performance with a blank control group.
(b) The areas occupied by the myocardial fibers of the blank control group, the model control group, the myocardial fibrosis resistant drug group, the ganoderma lucidum spore oil low-dose prevention group, the ganoderma lucidum spore oil medium-dose prevention group and the ganoderma lucidum spore oil high-dose prevention group are respectively 8.2 +/-0.2%, 65.6 +/-6%, 11.8 +/-0.4%, 25.9 +/-0.3%, 24.2 +/-0.6% and 17.1 +/-0.5%, which indicates that the ganoderma lucidum spore oil prevention effect is obvious, and the ganoderma lucidum spore oil low-dose prevention group, the ganoderma lucidum spore oil medium-dose prevention group and the ganoderma lucidum spore oil high-dose prevention group respectively reduce the myocardial fiber areas by 60.5%, 63.1% and 73.9%. The above results indicate that ganoderma lucidum spore oil can prevent myocardial fibrosis caused by valvular disease.
(4) Cardiac functional ultrasound detection
Cardiac ultrasound functional testing uses a small animal high frequency ultra high resolution imaging system Vevo 2100. During detection, 2% isoflurane is used for inducing anesthesia on a mouse, the mouse is fixed on an ultrasonic operating table, the temperature is kept at 37.6 ℃, the heart rate of the mouse is maintained at 450-480 bpm in the imaging process, the short axis view beside the sternum is taken, and the heart function of the mouse is calculated through M-type measurement.
The results show (see table 2):
(a) compared with the blank control group, the model control group has the advantages of increased left heart inner diameter, increased ventricular volume, reduced stroke volume and obviously reduced contractility.
(b) Compared with a model control group, the myocardial fibrosis resistant drug rents, the ganoderma lucidum spore oil low-dose prevention group, the ganoderma lucidum spore oil medium-dose prevention group and the ganoderma lucidum spore oil high-dose prevention group have obvious improvement on the left ventricle inner diameter, the ejection fraction, the short axis shortening rate and the cardiac output. For example, on the most intuitive index ejection fraction of the systolic and diastolic functions of the heart, after the successful modeling of the myocardial fibrosis model can be seen, the ejection fraction is reduced from 63.18 +/-2.51% to 42.34 +/-2.40%, while the ejection fraction of the anti-myocardial fibrosis drugs lesses, the low-dose prevention group of ganoderma lucidum spore oil, the medium-dose prevention group of ganoderma lucidum spore oil and the high-dose prevention group of ganoderma lucidum spore oil return to normal, and the numerical values are respectively: 59.20 + -4.28%, 50.85 + -1.89%, 51.85 + -1.89% and 61.23 + -2.15%, which were significantly different from the model control group, as shown in Table 3.
(c) A decrease in ejection fraction indicates impaired cardiac function and a return to elevated ejection fraction indicates improved cardiac function. The heart function improving effects of the low, medium and high dose prevention groups of ganoderma lucidum spore oil are 50.85 + -1.89%, 51.85 + -1.89% and 61.23 + -2.15%, respectively, and are similar to the effect of the anti-myocardial fibrosis drug group, as shown in fig. 3.
The above results show that the effect of ganoderma lucidum spore oil extracted from ganoderma lucidum according to a certain proportion on preventing myocardial fibrosis.
Table 2 ultrasonic test results of each group of mice (n is 12)
Expression vs model group P <0.05
(5) Measurement of serum fibrosis indices laminin and hyaluronidase HA
After the experiment is finished, blood is collected after the mouse is anesthetized, the whole blood is centrifuged for 10 minutes at 800g/L, and the obtained serum is stored in a refrigerator at the temperature of 80 ℃ below zero until the serum is used. Changes in laminin LN and hyaluronidase HA that reflect changes in the extracellular matrix were detected using radioimmunoassay.
The results show (see table 3 and fig. 4):
comparing the model control group with the blank control group, the laminin LN and the hyaluronidase HA of the model control group are obviously increased.
② compared with the model control group, the low, middle and high ganoderma lucidum spore oil prevention group HAs the effect of reducing myocardial fibrosis, compared with the model control group, the laminin in the serum is respectively reduced by 26.9%, 25.2% and 31.91%, and the hyaluronidase HA in the serum is respectively reduced by 22.4%, 20.1% and 30.8%, the difference HAs statistical significance.
③ the ganoderma lucidum spore oil HAs similar results after preventing and obviously reducing the content of extracellular matrix in serum and 42 days of treatment of losartan which is a medicament for resisting myocardial fibrosis, and obviously reduces the components LN and HA of the serum extracellular matrix, thereby showing that the ganoderma lucidum spore oil HAs the curative effect of preventing myocardial fibrosis.
Table 3 serum index test results (n-12) for each group of mice
P <0.05, n-12 compared to model control
(6) Detection of superoxide dismutase (SOD), MDA and GSH in heart tissue
After the experiment is finished, the animal is euthanized, the chest is cut open, the heart is taken out, 20mL of 0.9% sodium chloride normal saline is used for flushing 3, after the blood water is cleaned, the left ventricle is taken out and used in a mortar, after liquid nitrogen grinding, phosphate buffer solution is added, and the SOD, MDA and GSH contents of the tissue are measured according to the reagent and the instruction. The unit of measurement was nml/mg protein.
Superoxide dismutase (SOD) is an important antioxidant enzyme in organisms, and is used for detecting secondary peroxidation injury after important organ injury and the drug treatment effect thereof; malondialdehyde MDA is an oxidative metabolite of lipids and unsaturated fatty acids, as lipid oxidation levels are monitored; glutathione GSH is a low-molecular free radical scavenger and is an important index for detecting the magnitude of the antioxidant capacity of a collective.
The results show (see table 4 and fig. 5):
compared with the model control group, the SOD level in the low, medium and high ganoderma lucidum spore oil prevention groups is obviously improved (P is less than 0.05), the SOD level is respectively improved by 58.3%, 60.0% and 79.6%, and the GSH also has the same trend; meanwhile, the MDA content in the low, medium and high concentration prevention groups of ganoderma lucidum spore oil is obviously reduced by 28.1 percent, 40.4 percent and 40.7 percent respectively.
The above results suggest that the intake of ganoderma lucidum spore oil can effectively improve the antioxidant capacity of the heart.
TABLE 4 SOD, MDA and GSH results for each group of mice (n. 12)
P <0.05, n-12 compared to model control
Application of Ganoderma lucidum spore oil in preparing functional food and medicine for preventing myocardial fibrosis caused by aortic valvular disease is provided. Furthermore, the pharmaceutical composition with the effect of preventing the myocardial fibrosis caused by aortic valvular disease can be prepared, and comprises auxiliary materials and functional food or pharmaceutical ingredients, wherein the functional food or pharmaceutical ingredients are the ganoderma lucidum spore oil. The dosage form of the pharmaceutical composition is emulsion or soft capsule. The adjuvants can be conventional adjuvants.
The present invention is illustrated by the following examples, which are not intended to limit the scope of the invention. Other insubstantial modifications and adaptations of the present invention can be made without departing from the scope of the present invention.
Claims (3)
1. Application of Ganoderma lucidum spore oil and/or pharmaceutical composition containing Ganoderma lucidum spore oil in preparing medicine for preventing myocardial fibrosis caused by aortic valvular disease;
the ganoderma lucidum spore oil is prepared by the following method:
(1) selecting 1000g of ganoderma lucidum spore powder, carrying out ultrasonic treatment, freezing the ganoderma lucidum spore powder subjected to ultrasonic treatment for multiple times by adopting liquid nitrogen, then rewarming, then adding neutral protease for enzymolysis, and carrying out enzyme inactivation, neutralization, filtration and drying treatment after enzymolysis to obtain pretreated ganoderma lucidum spore powder;
(2) performing supercritical extraction on the pretreated ganoderma lucidum spore powder by adopting carbon dioxide to obtain ganoderma lucidum spore oil;
freezing the ganoderma lucidum spore powder subjected to ultrasonic treatment for 3 times by adopting liquid nitrogen in the step (1), and then rewarming at 30 ℃;
in the step (1), the temperature is 50 ℃, the enzymolysis time is 60min, and the pH value is 7.4;
the neutralization in the step (1) adopts potassium hydroxide, the drying temperature is 50 ℃, and the drying time is 10 hours;
when supercritical extraction is carried out by adopting carbon dioxide in the step (2), the extraction pressure is 15Mpa, the temperature is 40 ℃, and the time is 2 hours; separating at 30 deg.C under 6Mpa for CO2The speed is 20L/h;
the mass percentage of the ganoderma lucidum spore oil in the step (2) is 27%, the ganoderma lucidum spore oil comprises ganoderma lucidum total triterpenes and fatty acids, the ganoderma lucidum total triterpenes account for 18.7% of the total mass of the ganoderma lucidum spore oil, the fatty acids account for 74% of the total mass of the ganoderma lucidum spore oil, and the fatty acids comprise oleic acid, palmitic acid and linoleic acid, wherein the oleic acid, the palmitic acid and the linoleic acid account for 61.5%, 15.6% and 13.3% of the total mass of the fatty acids.
2. Use according to claim 1, characterized in that: the pharmaceutical composition containing the ganoderma lucidum spore oil comprises the ganoderma lucidum spore oil and auxiliary materials.
3. Use according to claim 1, characterized in that: the dosage form of the pharmaceutical composition containing ganoderma lucidum spore oil is emulsion or soft capsule.
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