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CN117264810A - Probiotic composition with metabolism syndrome improving function and application thereof - Google Patents

Probiotic composition with metabolism syndrome improving function and application thereof Download PDF

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CN117264810A
CN117264810A CN202311027414.9A CN202311027414A CN117264810A CN 117264810 A CN117264810 A CN 117264810A CN 202311027414 A CN202311027414 A CN 202311027414A CN 117264810 A CN117264810 A CN 117264810A
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lactobacillus
probiotic composition
metabolic syndrome
genes
expression
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陈彩玲
张其文
陈作国
柯雪琴
高侃
陈苏
朱珺
范秋领
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Hangzhou Wahaha Group Co Ltd
HANGZHOU WAHAHA TECHNOLOGY CO LTD
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HANGZHOU WAHAHA TECHNOLOGY CO LTD
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Abstract

The invention relates to the technical field of probiotic compositions, in particular to a probiotic composition with a function of improving metabolic syndrome and application thereof. The probiotic composition comprises bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155. In the probiotic composition, 6 strains can generate better synergistic effect in improving metabolic syndrome, so that the probiotic composition can effectively stimulate intestinal flora to generate short chain fatty acid, promote the expression of FXR, SHP, FGF genes in intestinal tracts and FGFR4, SHP and Abcg5 genes in livers, inhibit the expression of CYP7A1 in livers, have more comprehensive effect and obviously improve compared with single strain.

Description

Probiotic composition with metabolism syndrome improving function and application thereof
Technical Field
The invention relates to the technical field of probiotic compositions, in particular to a probiotic composition with a function of improving metabolic syndrome and application thereof.
Background
Metabolic syndrome (Metabolic syndrome, MS) is one of the most prominent problems in medicine today, often accompanied by carbohydrate and lipid metabolism disorders, often occurring simultaneously with obesity, dyslipidemia and glycometabolism disorders (type 2 diabetes or impaired glucose tolerance), and also pathologically interacting, with increased risk of cardiovascular disease, cancer and nonalcoholic fatty liver in patients suffering from metabolic syndrome. It is counted that metabolic syndrome patients spend more than $4000 on treatment each year, and the prevalence is growing at a striking rate and is showing a trend towards younger age. The metabolic syndrome seriously affects the physical health of people, and brings trouble to the life of people and also brings heavy burden to the development of national economy.
It has been reported that the occurrence of metabolic syndrome is closely related to the imbalance of intestinal flora, while probiotics are commonly used intestinal flora modulators. Patent CN202211588301.1 filed before the applicant relates to a bifidobacterium longum strain with blood sugar reducing effect and application thereof, wherein lactobacillus fermentum WHH3906 is found to be capable of regulating intestinal microenvironment, stimulating G protein coupled receptor expression of intestinal and pancreatic mediated short chain fatty acids, relieving insulin resistance and reducing blood sugar; patent CN202010953587.3 relates to a fermented lactobacillus plantarum with a weight-losing function and application thereof, wherein it is disclosed that the fermented lactobacillus plantarum WHH3906 can effectively reduce the level of leptin to restore the leptin sensitivity of the body, and effectively prevent and treat obesity.
The above patents all use a single strain to relieve metabolic diseases, and have single effect and limited relieving degree. By utilizing the synergistic effect among different strains, the effect of relieving the metabolic syndrome is expected to be improved, but the research on a plurality of strains in the aspect of improving the metabolic syndrome is very little at present, the interaction mechanism among the strains and the mechanism for improving the metabolic syndrome are not clear, and therefore, the difficulty for obtaining the probiotic composition with ideal effect is very great. In patent CN202011448810.5 filed before the applicant, lactobacillus plantarum 1701 and lactobacillus mucilaginosus WHH3906 are compounded, and the two strains show a synergistic effect on weight loss, but the effect is still single for improving metabolic syndrome.
Disclosure of Invention
The invention provides a probiotic composition with a function of improving metabolic syndrome and application thereof, and aims to solve the technical problems that an existing probiotic bacterial agent for improving metabolic syndrome is limited in improvement range and single in action effect. The probiotic composition has better synergistic effect in improving metabolic syndrome, can effectively stimulate intestinal flora to generate short-chain fatty acid, regulate and control the expression of related genes in intestinal tracts and livers, reduce blood sugar and blood fat, improve obesity, has more comprehensive effect and is superior to a single strain.
The specific technical scheme of the invention is as follows:
in a first aspect, the present invention provides a probiotic composition having a function of improving metabolic syndrome, comprising bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155;
the bifidobacterium animalis WHH2276 has been deposited at the microorganism strain collection center of Guangdong province (address: guangzhou Mitsui No. 100 university, guangzhou, md. 100, building No. 5, guangdong province academy of sciences of China) on 10 months 18 of 2022, with deposit number of GDMCC No. 62901, and the microorganism classification named as bifidobacterium animalis Bifidobacterium animalis subsp.
The fermented lactobacillus mucilaginosus WH3906 is preserved in China general microbiological center (the address is China academy of sciences of microbiology, national academy of sciences, 1 st da, 3 rd da, beijing, chaoyang area) at 3 months 13 days in 2020, the preservation number is CGMCC No.19472, and the microorganism classification is named fermented lactobacillus mucilaginosus Limosilactobacillus fermentun;
the fermented lactobacillus mucilaginosus 2644 is preserved in China general microbiological center (the address is China academy of sciences of microbiology, national academy of sciences, 1 st da, 3 rd da, beijing, the city of korea) at 11 months and 19 days in 2018, with a preservation number of CGMCC No.16754, and the microorganism classification is named fermented lactobacillus mucilaginosus Limosilactobacillus fermentun;
the bifidobacterium longum WH 2270 has been deposited at the microorganism strain collection center of Guangdong province (address: guangzhou Mitsui No. 100, ming's 100, building No. 5, guangdong province academy of sciences of China) on 10-month 18 of 2022, with deposit number of GDMCC No. 62900, and the microorganism classification named as bifidobacterium longum Bifidobacterium longum subsp.
The lactobacillus plantarum 1701 has been preserved in the China general microbiological center (the address is China center for microbiological study, including national academy of sciences of China, including national institute of sciences, including national center for passage 1, national center for use in the morning, as seen in Beijing, and having a preservation number of CGMCC No.18728, and the microorganism classification is named lactobacillus plantarum Lactobacillus plantarum;
lactobacillus rhamnosus 1155 has been preserved in the China general microbiological center (the institute of microbiology, national academy of sciences of China, no. 3, north Chen, lu 1, beijing, kogyo) at 1, 4, and has a preservation number of CGMCC No.11955, and the microorganism classification is named lactobacillus rhamnosus Lactobacillus rhamnosus.
Regarding lactobacillus fermentum WHH3906 and lactobacillus fermentum 2644: the "lactobacillus fermentum Lactobacillus fermentum" was more named as "lactobacillus fermentum Limosilactobacillus fermentun" in 2021, lactobacillus fermentum wh 3906 and lactobacillus fermentum 2644 were preserved before the renaming, so that the classification in the preservation certificate was named as "lactobacillus fermentum Lactobacillus fermentum", and the present name "lactobacillus fermentum Limosilactobacillus fermentun" was used in the present invention.
In the probiotic composition, complex interaction relation exists between all strains, the metabolic products of one strain can influence the growth and metabolism of other strains, meanwhile, resource competition exists between the strains, the growth and the metabolism of the strains can be influenced, and further, the synergistic or antagonistic effect is shown, so that the functions of the probiotic composition are not simple superposition of all the strains. Because of the intricate interactions between strains, the mechanism of interactions between strains in improving metabolic syndrome is not yet defined; also, for synergy or antagonism between strains, even between fixed several species, the interactions exhibited between different strains are not fixed, and may even be completely reversed. These present significant difficulties in the development of probiotic compositions with desirable synergistic effects.
According to the invention, after the specific 6 strains of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 are compounded, the synergistic effect can be better played in the aspect of improving metabolic syndrome, and the effect is more comprehensive and better than that of a single strain. In particular, in improving the metabolic syndrome, the probiotic composition of the invention has the following effects:
(1) Has better synergistic effect in reducing blood sugar: through experiments, the probiotic composition provided by the invention can obviously reduce the blood sugar rise induced by a high-calorie diet, and the effect is better than that of a single strain of 6 strains.
(2) Has better synergistic effect in reducing blood fat: through experiments, the probiotic composition can obviously reduce cholesterol and triglyceride rise induced by high calorie diet, and the effect is better than that of a single strain of 6 strains.
(3) Has better effect in improving obesity: through experiments, the probiotic composition disclosed by the invention can be used for remarkably improving obesity induced by high-fat diet.
(4) Has better synergistic effect in promoting the synthesis of Short Chain Fatty Acids (SCFAs) of intestinal nutrient factors: through experiments, the probiotic composition can obviously increase the content of SCFAs in intestinal tracts and blood, and the effect is better than that of a single strain of 6 strains.
(5) Has better effects in regulating the expression of genes related to metabolic syndrome and restricting the synthesis of bile acid: through experiments, the probiotic composition provided by the invention can effectively promote the expression of FXR, SHP, FGF genes in intestinal tracts and FGFR4, SHP and Abcg5 genes in livers, and inhibit the expression of CYP7A1 genes in livers. Since CYP7A1 is a rate-limiting enzyme in the bile acid synthesis pathway, inhibition of expression of the CYP7A1 gene in the liver can limit bile acid synthesis, thereby promoting lipid excretion from feces and reducing lipid accumulation in the host.
Preferably, the ratio of viable count of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 is 1: (1-10): (1-10): (1-10): (1-10): (1-10).
In a second aspect, the present invention provides the use of said probiotic composition in a formulation having a function of improving metabolic syndrome.
Preferably, the preparation having the function of improving metabolic syndrome is used for reducing blood lipid or blood sugar, or for improving obesity, or for promoting the production of short chain fatty acids in the intestinal tract, or for regulating the expression of metabolic syndrome-related genes in the intestinal tract and liver, or for limiting the synthesis of bile acids.
Further, the regulation of expression of genes associated with metabolic syndrome in the gut and liver includes promoting expression of FXR, SHP and FGF15 genes in the gut, promoting expression of FGFR4, SHP and Abcg5 genes in the liver, and inhibiting expression of CYP7A1 gene in the liver.
In a third aspect, the invention provides the use of said probiotic composition in a regulator of expression of a gene associated with metabolic syndrome.
Preferably, the metabolic syndrome related genes include FXR, SHP and FGF15 genes in the gut, and FGFR4, SHP, abcg5 and CYP7A1 genes in the liver.
In a fourth aspect, the present invention provides the use of the probiotic composition in a formulation having the function of promoting the production of short chain fatty acids in the intestinal tract.
In a fifth aspect, the present invention provides the use of the probiotic composition in a formulation having a function of limiting bile acid synthesis.
In a sixth aspect, the present invention provides the use of said probiotic composition in a formulation having a blood glucose and blood lipid lowering function.
Compared with the prior art, the invention has the following advantages:
(1) In the probiotic composition, 6 strains can generate better synergistic effect in improving metabolic syndrome, so that the probiotic composition can effectively stimulate intestinal flora to generate short chain fatty acid, promote the expression of FXR, SHP, FGF genes in intestinal tracts and FGFR4, SHP and Abcg5 genes in livers, inhibit the expression of CYP7A1 in livers, have more comprehensive effect and obviously improve compared with single strain.
(2) The probiotic composition provided by the invention can generate remarkable synergistic effect in reducing blood sugar and blood fat. In zebra fish experiments, the concentration of probiotics is 10 8 When CFU/mL is carried out, the reduction amplitude of blood sugar is improved by 20-77% different than that of a single strain, the reduction amplitude of total cholesterol is improved by 62-150% different than that of a single strain, and the reduction amplitude of triglyceride is improved by 44-132% different than that of a single strain; in the metabolism syndrome model rat experiment, 6×10 medicine is taken 9 The CFU/kg BW probiotic composition can remarkably improve hyperglycemia and hyperlipidemia induced by high-fat diet, and the blood sugar and the blood lipid are reduced to the normal level of a normal control group.
(3) The probiotic composition provided by the invention has good weight-losing efficacy. In the metabolism syndrome model rat experiment, 6×10 medicine is taken 9 The CFU/kg BW probiotic composition can remarkably improve obesity induced by high-fat diet, and the weight is reduced by 15% compared with that of a model group.
(4) The probiotic composition provided by the invention has good short-chain fatty acid synthesis capability. In the metabolism syndrome model rat experiment, 6×10 medicine is taken 9 CFU/kg BW probiotic composition can be significantly increasedThe content of SCFAs in intestinal tract is improved by 38% compared with model group, and the content of acetic acid in blood is increased.
(5) The probiotic composition provided by the invention can effectively promote the expression of FXR, SHP, FGF and Abcg5 genes in intestinal tracts and FGFR4, SHP and Abcg5 genes in livers; inhibit the expression of CYP7A1 gene, limit the synthesis of bile acid, promote the discharge of lipid from feces, reduce the accumulation of lipid in a host body, and obviously improve metabolic syndrome.
Drawings
Figure 1 shows the effect of different interventions on blood glucose and blood lipid in blood of high fat diet zebra fish. Wherein, figures 1A-1C are the effects of different interventions on blood glucose, total blood cholesterol (TC), blood Triglycerides (TG) of high-fat diet zebra fish, respectively; different letters indicate significant differences, P <0.05.
Figure 2 is the effect of different interventions on the body weight of high fat diet rats. Wherein the different letters represent significant differences, P <0.05.
Figure 3 is the effect of different interventions on blood glucose and blood lipid in high fat diet rats. Wherein, fig. 3A to 3F are the effects of different interventions on Fasting Blood Glucose (FBG), blood Glucose (BG), oral glucose tolerance (OGTT), blood low density lipoprotein cholesterol (LDL-C), blood Triglycerides (TG), blood Total Cholesterol (TC) of high fat diet rats, respectively; different letters indicate significant differences, P <0.05.
Figure 4 shows the effect of different interventions on SCFAs concentration in the intestinal tract and blood of high fat diet rats. Among them, figure 4A is the effect of different interventions on SCFAs (including acetic acid, propionic acid and butyric acid) concentration in the intestinal tract of high fat diet rats; FIG. 4B is the effect of different interventions on acetic acid concentration in blood of high fat diet rats; different letters indicate significant differences, P <0.05.
FIG. 5 is a graph showing the effect of different interventions on the expression of genes associated with metabolic syndrome in the intestinal tract and liver of high fat diet rats; wherein # represents significant difference compared to control group, P <0.05; * Indicating significant differences compared to the model group, P <0.05.
FIG. 6 is a schematic diagram of the effect of the probiotic composition of the invention on improving metabolic syndrome.
Fig. 7 is a zebra fish experimental design. Wherein, "HFD-Y" means administration of a high fat diet, and "HCD-G" means a high sugar-based diet.
FIG. 8 is a diagram of a rat experimental design.
Detailed Description
The invention is further described below with reference to examples. It is to be understood that these embodiments are merely for illustrating the present invention and are not to be construed as limiting the scope of the present invention, and that variations and advantages which can be conceived by those skilled in the art are included therein without departing from the spirit and scope of the inventive concept, and the appended claims and any equivalents thereof are intended to be protected by the present invention.
General examples
A probiotic composition with a function of improving metabolic syndrome, comprising bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155;
the bifidobacterium animalis WHH2276 has been deposited in the microorganism strain collection of Guangdong province at 10 and 18 of 2022, and the deposited number is GDMCC No. 62901, and the microorganism classification is named as bifidobacterium animalis Bifidobacterium animalis subsp.
The fermented lactobacillus mucilaginosus WH3906 is preserved in China general microbiological culture Collection center (CGMCC) with the preservation number of CGMCC No.19472 and the microorganism classification is named fermented lactobacillus mucilaginosus Limosilactobacillus fermentun in 3 months and 13 days of 2020;
the fermented lactobacillus mucilaginosus 2644 is preserved in China general microbiological culture collection center (CGMCC) in 11 and 19 months of 2018, and the preservation number is CGMCC No.16754, and the microorganism classification is named as fermented lactobacillus mucilaginosus Limosilactobacillus fermentun;
the bifidobacterium longum WHH2270 has been deposited in the microorganism strain collection of Guangdong province at 10 and 18 of 2022, and the deposited number is GDMCC No. 62900, and the microorganism classification is named as bifidobacterium longum Bifidobacterium longum subsp.
The lactobacillus plantarum 1701 has been preserved in China general microbiological culture collection center (CGMCC) with the preservation number of CGMCC No.18728 in the 10 month 23 days of 2019, and the microorganism classification is named as lactobacillus plantarum Lactobacillus plantarum;
lactobacillus rhamnosus 1155 has been preserved in China general microbiological culture collection center (CGMCC) with a preservation number of CGMCC No.11955 in the year 1 and 4 of 2016, and the microorganism classification is named lactobacillus rhamnosus Lactobacillus rhamnosus.
As a specific embodiment, the ratio of the viable count of the bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 is 1: (1-10): (1-10): (1-10): (1-10): (1-10).
The use of said probiotic composition in a formulation having a function of improving metabolic syndrome.
As a specific embodiment, the agent having a function of improving metabolic syndrome is used for reducing blood lipid or blood glucose, or for improving obesity, or for promoting the production of short chain fatty acids in the intestinal tract, or for regulating the expression of metabolic syndrome-related genes in the intestinal tract and liver, or for limiting the synthesis of bile acids.
As a specific embodiment, the modulating expression of genes associated with metabolic syndrome in the gut and liver includes promoting expression of FXR, SHP and FGF15 genes in the gut, promoting expression of FGFR4, SHP and Abcg5 genes in the liver, and inhibiting expression of CYP7A1 gene in the liver.
The application of the probiotic composition in the metabolic syndrome related gene expression regulator.
As a specific embodiment, the metabolic syndrome related genes include FXR, SHP and FGF15 genes in the gut, and FGFR4, SHP and CYP7A1 genes in the liver.
Use of the probiotic composition in a formulation having the function of promoting the production of short chain fatty acids in the intestinal tract.
The use of said probiotic composition in a formulation having a function of limiting bile acid synthesis.
The probiotic composition is applied to a preparation with the function of reducing blood sugar and blood fat.
Example 1: evaluation of synergistic hypoglycemic efficacy of probiotic composition
Zebra fish of the 5dpf wild type AB strain were bred in beakers, and 30 zebra fish were treated per cup (experimental group). The probiotic bacteria and the positive sample of the present invention are respectively administered in a water-soluble manner, wherein the probiotic bacteria samples comprise single strains of 6 strains of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 (respectively, "WHH2276", "WHH3906", "WHH2644", "WHH2270", "WHH1701", "wh 1155" in fig. 1) and a probiotic composition (Pro "in fig. 1) formulated according to a viable count of 1:1:1:1:1:1:1, positive control (Pioglitazone" in fig. 1) Pioglitazone hydrochloride of 20.0 μg/mL; a normal Control group (FIG. 1, "Control") and a Model Control group (FIG. 1, "Model") were simultaneously set, with a capacity of 25mL per cup. Except for the normal control group, the rest experimental groups were given high-fat feed (yolk powder) in water in the daytime (7.5 h daily) and high-sugar (glucose) in water in the evening (16.5 h daily) to establish a zebra fish high-sugar high-fat model. The probiotics (final concentration of single strain and probiotic composition is 10 8 CFU/mL) and high-fat feed were co-treated for 15h (7.5 h daily) and glucose for 33h (16.5 h daily), and the experimental design is shown in fig. 7.
Processing at 28deg.C for 48 hr, collecting data with glucometer, analyzing blood sugar value in zebra fish, and evaluating blood sugar lowering effect of sample with the statistical analysis result of the index. Statistical treatment results are expressed in mean+ -SE. Statistical analysis was performed with SPSS26.0 software, p <0.05 indicated that the differences were statistically significant.
The results are shown in FIG. 1A: compared with a normal control group, the blood sugar of a model group is obviously increased, and the blood sugar of the medicament pioglitazone hydrochloride, each single strain and the probiotic composition Pro group can be obviously reduced after being treated, wherein the probiotic composition Pro group has the best reducing effect, and the reducing amplitude is improved by 20-77% compared with the effect of the single strain, so that the probiotic composition provided by the invention can generate obvious synergistic effect in reducing the blood sugar.
Example 2: efficacy evaluation of probiotic composition for synergistically reducing total cholesterol
Zebra fish of the 5dpf wild type AB strain were bred in beakers, and 30 zebra fish were treated per cup (experimental group). The probiotics of the present invention and the positive samples were administered in water, respectively, wherein the probiotic samples included individual strains of 6 strains of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 ("WHH 2276", "WHH3906", "WHH2644", "WHH2270", "WHH1701", "wh 1155", respectively, in fig. 1) and probiotic compositions (Pro "in fig. 1) formulated in a viable count of 1:1:1:1:1:1:1 were prepared, and the positive Control (Pioglitazone" in fig. 1) Pioglitazone hydrochloride was 20.0 μg/mL, while setting the normal Control group (Control "in fig. 1) and the Model Control group (Model" in fig. 1) at a capacity of 25mL per cup. Except for the normal control group, the rest experimental groups were given high-fat feed (yolk powder) in water in the daytime (7.5 h daily) and high-sugar (glucose) in water in the evening (16.5 h daily) to establish a zebra fish high-sugar high-fat model. The probiotics (final concentration of single strain and probiotic composition is 10 8 CFU/mL) and high fat feed were co-treated for 15h (7.5 h daily) and glucose for 33h (16.5 h daily), cholesterol probe was injected at 32h, and the experimental design is shown in fig. 7.
And (3) processing at 28 ℃ for 48 hours, randomly picking 10 zebra fish from each experimental group, photographing under a fluorescence microscope, analyzing and collecting data by using NIS-ElementsD3.20 advanced image processing software, analyzing the fluorescence intensity of blood vessel cholesterol at the tail of the zebra fish, and evaluating the cholesterol reducing effect of the sample according to the statistical analysis result of the index. Statistical treatment results are expressed in mean+ -SE. Statistical analysis was performed with SPSS26.0 software, p <0.05 indicated that the differences were statistically significant.
The results are shown in FIG. 1B: compared with a normal control group, the total cholesterol content of a model group is obviously increased, and after the treatment of the medicines pioglitazone hydrochloride, the WH 2270, the WH 2644, the WH 2276, the WH 3906 and the probiotic compound Pro group, the total cholesterol increase induced by high calorie diet can be obviously reduced, wherein the reduction effect of the probiotic compound Pro group is best, and the reduction amplitude is improved by 62% -150% compared with that of a single strain, so that the probiotic composition provided by the invention can generate obvious synergistic effect in the aspect of reducing the total cholesterol.
Example 3: evaluation of synergistic triglyceride lowering efficacy of probiotic compositions
Zebra fish of the melanin allele mutant Albino strain were used, and the zebra fish were kept in beakers, and 30 zebra fish were treated per cup (experimental group). The probiotics of the present invention and the positive samples were administered in water, respectively, wherein the probiotic samples included individual strains of 6 strains of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 ("WHH 2276", "WHH3906", "WHH2644", "WHH2270", "WHH1701", "wh 1155", respectively, in fig. 1) and probiotic compositions formulated in a viable count of 1:1:1:1:1:1:1 ("Pro" in fig. 1), positive controls ("Pioglitazone" in fig. 1) Pioglitazone hydrochloride of 20.0 μg/mL, while setting a normal Control group ("Control" in fig. 1) and a Model Control group ("Model" in fig. 1) at 25mL per cup. Except for the normal control group, the rest experimental groups were given high-fat feed (yolk powder) in water in the daytime (7.5 h daily) and high-sugar (glucose) in water in the evening (16.5 h daily) to establish a zebra fish high-sugar high-fat model. The probiotics (final concentration of single strain and probiotic composition is 10 8 CFU/mL) and high-fat feed were co-treated for 15h (7.5 h daily) and glucose for 33h (16.5 h daily), and the experimental design is shown in fig. 7.
Treatment was carried out at 28℃for 48h, and oil red O was given to carry out mass fat staining. After the dyeing is finished, 10 zebra fish are randomly selected from each experimental group, photographed under an dissecting microscope, analyzed and data are collected by Image-Pro Plus advanced Image processing software, the intestinal tract and tail blood vessel dyeing intensity of the zebra fish is analyzed, and the triglyceride reducing efficacy (intestinal tract and tail blood vessel) of the sample is evaluated by the statistical analysis result of the index. Statistical treatment results are expressed in mean+ -SE. Statistical analysis was performed with SPSS26.0 software, p <0.05 indicated that the differences were statistically significant.
The results are shown in FIG. 1C: compared with a control group, the content of triglyceride in the model group is obviously increased, and the triglyceride increase induced by high-calorie diet can be obviously reduced after the treatments of the medicaments pioglitazone hydrochloride, the WH 2644, the WH 2276, the WH 3906, the WH 1155 and the probiotic compound Pro, wherein the effect of reducing the probiotic compound Pro group is best, and the effect of reducing the probiotic compound Pro group is improved by 44-132% compared with that of a single strain, so that the probiotic composition provided by the invention can generate obvious synergistic effect in reducing the triglyceride.
Example 4: probiotic composition for improving rat metabolic syndrome efficacy
The invention adopts SD male rats (5 weeks old) and is fed into a clean environment with room temperature of 26+/-0.5 ℃ and humidity of 50-60% and day-night light-shade alternation time (12/12 h). During the feeding period, the mice can eat and drink water freely. The experiment was divided into 4 groups, namely, a Control group (Control in FIGS. 2 to 5), a Model group (Model in FIGS. 2 to 5), a positive drug group (Metformin in FIGS. 2 to 5), and Pro (probiotic composition composed of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WH 2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 compounded in a viable count of 1:1:1:1:1:1). The control group is normally eaten, and 2mL of sterile physiological saline is infused every day; model group high fat diet, 2mL of sterile physiological saline is infused daily; positive drug group high fat diet, 2mL Metformin hydrochloride (metaformin) (150 mg/kg BW) was infused daily; pro group high fat diet, 2mL of probiotic solution (6×10) was infused daily 9 CFU/kg BW), 8 rats per group, 12 weeks for the trial, see fig. 8 for the experimental design.
Rats were recorded for weight change during the experiment, fasted overnight after 11 weeks, tail vein blood was taken, and fasting glycemia (FBG) and oral glucose tolerance (OGTT) were measured; fresh fecal tissue was taken for detection of short chain fatty acid content and for flora analysis. After 12 weeks, the blood was taken after the sacrifice and analyzed for Triglyceride (TG), total Cholesterol (TC), high density lipoprotein cholesterol (HDL-C) and low density lipoprotein cholesterol (LDL-C) levels using an LW C400 autoanalyzer.
The change in rat body weight is shown in fig. 2: there was no difference in body weight between groups before the start of the experiment. With the extension of the experimental time, compared with a blank control group, the weight of the model group is obviously increased faster, and the probiotic compound Pro group can obviously inhibit the weight increase, and the effect is equivalent to that of a positive medicament. The test result shows that the probiotic composition provided by the invention can obviously improve obesity of rats with metabolic syndrome induced by high-fat diet.
The rat blood glucose levels are shown in figures 3A-C: compared with a blank control group, the fasting blood glucose and the oral glucose tolerance of a model group are obviously increased, and after the probiotic compound Pro is interfered, the fasting blood glucose and the oral glucose tolerance of rats can be obviously reduced, the reduction effect is equivalent to that of a positive medicament, and the blood glucose is reduced to the normal level of the control group. The test result shows that the probiotic composition provided by the invention can obviously improve the blood sugar and oral glucose tolerance increase of the high-fat diet-induced metabolic syndrome rats.
Rat blood lipid levels are shown in figures 3D-F: compared with the blank control group, the low density lipoprotein cholesterol (LDL-C), triglyceride (TG) and total blood cholesterol (TC) of the model group are all obviously increased, and after the probiotic compound Pro is interfered, the probiotic compound Pro can be obviously improved to be reduced to the normal level of the control group. The test result shows that the probiotic composition provided by the invention can obviously improve the dyslipidemia of the high-fat diet-induced metabolic syndrome rats.
The levels of short chain fatty acids in the rat intestinal tract are shown in fig. 4A (where "WHH2276", "WHH3906", "WHH2644", "WHH2270", "WHH1701", "WHH1155" are single strain treatments using 6 strains of bifidobacterium animalis WHH2276, lactobacillus mucilaginosus WHH3906, lactobacillus mucilaginosus 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155, respectively), and the amounts of probiotics and treatments were the same as those of Pro group except for the differences in the probiotic composition, and the acetic acid content in blood is shown in fig. 4B: compared with a blank control group, the content of SCFAs in the intestinal tract and blood of a rat in a model group is obviously reduced, the content of acetic acid and propionic acid in the intestinal tract can be obviously improved after the probiotic compound Pro intervenes, the content of acetic acid in the blood is obviously improved, the content of SCFAs after improvement reaches the normal level of a normal control group, and the effect of single strain treatment is poor (the content of SCFAs in the intestinal tract is not obviously improved). The test result shows that the probiotic composition provided by the invention can obviously improve the metabolic abnormality of short-chain fatty acid in the fermentation product of the intestinal flora of the rats with the metabolic syndrome induced by high-fat diet, and regulate the intestinal microenvironment and the content of the short-chain fatty acid in blood.
The expression of the genes associated with metabolic syndrome in the intestinal tract and liver of rats is shown in FIG. 5: compared with a control group, the expression of SHP, FXR, FGF and Abcg5 genes in the intestinal tract and FGFGR4 and SHP genes in the liver of a model group mouse are obviously reduced, and the expression of the genes can be obviously improved after the intervention of a probiotic compound Pro; the expression of CYP7A1 in the liver is obviously increased, and after the intervention of the probiotic compound Pro, the expression of CYP7A1 genes can be obviously reduced, and similar change trends are also observed for other genes except SHP in the intestinal tract in the positive medicament group. The test result shows that the probiotic composition provided by the invention can obviously improve the expression of related genes in the intestinal tract and liver of the rat with metabolic syndrome induced by high-fat diet.
Based on the above experimental results, the action mechanism of the probiotic composition provided by the invention for improving the metabolic syndrome is shown in fig. 6: probiotics regulate intestinal flora to synthesize short chain fatty acid, inhibit the expression of liver CYP7A1 by activating intestinal FXR-FGF15 signal pathway, and limit bile acid synthesis; simultaneously, the expression of a cholesterol transport related protein Abcg5 is regulated, the absorption of cholesterol is inhibited, and the discharge of cholesterol is promoted, so that the accumulation of lipid in the liver is reduced, and the metabolic syndrome is obviously improved.
In the present invention, unless otherwise indicated, scientific and technical terms used herein have the meanings commonly understood by one of ordinary skill in the art. In addition, the experimental methods used in the invention are all conventional methods unless specified otherwise; the reagents, biological materials and apparatus used, unless otherwise indicated, are all commercially available.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A probiotic composition having a function of improving metabolic syndrome, comprising bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155;
the bifidobacterium animalis WHH2276 has been deposited at the collection of microorganism strains of Guangdong province at 10 and 18 of 2022 under the accession number GDMCC No. 62901, and the microorganism classification is named as bifidobacterium animalisBifidobacterium animalis subsp. lactis
The Lactobacillus fermentum WH3906 has been preserved in China general microbiological culture Collection center (CGMCC) with the preservation number of CGMCC No.19472 at 13/3/2020, and the microorganism classification is named Lactobacillus fermentumLimosilactobacillus fermentun
The fermented lactobacillus mucilaginosus 2644 has been preserved in China general microbiological culture Collection center (CGMCC) with the preservation number of CGMCC No.16754 and the microorganism classification of the fermented lactobacillus mucilaginosus in 11 and 19 days of 2018Limosilactobacillus fermentun
The Bifidobacterium longum WHH2270 has been deposited at the microorganism strain collection of Cantonese province at 10 and 18 of 2022 under the accession number GDMCC No. 62900, and the microorganism classification was designated as Bifidobacterium longumBifidobacterium longum subsp. longum
The lactobacillus plantarum 1701 has been preserved in China with the protection of microorganism strain in the year 10, 23 of 2019The collection number is CGMCC No.18728, and the microorganism classification is named as Lactobacillus plantarumLactobacillus plantarum
The lactobacillus rhamnosus 1155 has been preserved in China general microbiological culture Collection center (CGMCC) with a preservation number of CGMCC No.11955 in the year 1 and 4 of 2016, and the microorganism classification is named lactobacillus rhamnosusLactobacillus rhamnosus
2. The probiotic composition according to claim 1, characterized in that the ratio of the viable count of bifidobacterium animalis WHH2276, lactobacillus fermentum WHH3906, lactobacillus fermentum 2644, bifidobacterium longum WHH2270, lactobacillus plantarum 1701 and lactobacillus rhamnosus 1155 is 1: (1-10): (1-10): (1-10): (1-10): (1-10).
3. Use of a probiotic composition according to claim 1 or 2 in a formulation with a function of improving the metabolic syndrome.
4. The use according to claim 3, wherein the agent having a metabolic syndrome-improving function is for reducing blood lipid or blood sugar, or for improving obesity, or for promoting the production of short chain fatty acids in the intestinal tract, or for regulating the expression of metabolic syndrome-related genes in the intestinal tract and liver, or for limiting the synthesis of bile acids.
5. The use according to claim 4, wherein regulating expression of genes associated with metabolic syndrome in the gut and liver comprises promoting expression of FXR, SHP and FGF15 genes in the gut, promoting expression of FGFR4, SHP and Abcg5 genes in the liver, and inhibiting expression of CYP7A1 gene in the liver.
6. Use of a probiotic composition according to claim 1 or 2 in a regulator of expression of genes associated with metabolic syndrome.
7. The use according to claim 6, wherein the metabolic syndrome related genes comprise FXR, SHP and FGF15 genes in the gut, and FGFR4, SHP, abcg5 and CYP7A1 genes in the liver.
8. Use of a probiotic composition according to claim 1 or 2 in a formulation having the function of promoting the production of short chain fatty acids in the intestinal tract.
9. Use of a probiotic composition according to claim 1 or 2 in a formulation having a function of limiting bile acid synthesis.
10. Use of a probiotic composition according to claim 1 or 2 in a formulation having a function of lowering blood sugar and blood lipid.
CN202311027414.9A 2023-08-16 2023-08-16 Probiotic composition with metabolism syndrome improving function and application thereof Pending CN117264810A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117899125A (en) * 2024-01-19 2024-04-19 吉林省农业科学院(中国农业科技东北创新中心) A preparation for preventing and/or treating hyperglycemia

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117899125A (en) * 2024-01-19 2024-04-19 吉林省农业科学院(中国农业科技东北创新中心) A preparation for preventing and/or treating hyperglycemia

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