336 results about "Homeostasis" patented technology

The invention discloses a triggering probiotic-drug conjugate and a preparation method and application thereof, and belongs to the technical field of oral drug delivery systems, the triggering probiotic-drug conjugate comprises probiotics, an adhesive inner layer formed by coordination of tannic acid and Fe < 3 + >, and an outer layer formed by pterostilbene-phospholipid bridged by ROS-responsive thioether bonds and cholesterol; the inner layer coats the surfaces of the probiotics through coordination, and the outer layer coats the outer part of the inner layer through self-assembly. An outer lipid layer is decomposed under high-concentration ROS in an inflammation colon area, and probiotics coated with pterostilbene and a tannic acid layer are released. Pterostilbene relieves inflammation and rebuilds a pathological microenvironment, and catechol groups in a tannic acid layer and the surface of the intestinal tract generate multiple interactions to promote planting of probiotics. In UC mouse models, the conjugates exhibit enhanced therapeutic effects by inhibiting inflammation, restoring intestinal barrier function, and improving intestinal microbiota homeostasis. The invention has important transformation potential in clinical application of gastrointestinal diseases.

The invention discloses a composition for regulating sleep rhythm homeostasis as well as a preparation method and application thereof. The composition for regulating the sleep rhythm homeostasis is prepared from the following components in percentage by weight: 5 to 18 percent of polydextrose, 9 to 15 percent of galactooligosaccharide, 1 to 10 percent of inulin, 0.4 to 2 percent of gamma-aminobutyric acid, 0.8 to 2.2 percent of L-theanine, 0.1 to 3.5 percent of magnesium citrate, 2 to 21 percent of semen ziziphi spinosae extract, 1 to 10 percent of poria cocos extract, 0.5 to 2 percent of pericarpium citri reticulatae extract, 0.3 to 1 percent of liquorice root extract and 15 to 40 percent of maltodextrin. 5-18% of coconut oil powder MCTs, and 0.5-2% of a lily extract. According to the application, a magnesium MCTs shell-core structure is delivered by maltodextrin to form a mitochondrial piezoelectric engine so as to improve prebiotics, promote flora metabolism efficiency and energy supply feedback, activate intestinal pheochromophilic cells and improve SLC6A4 gene expression so as to improve synthesis of 5-hydroxytryptamine in the brain and activate GABA energy neurons; meanwhile, through the spina date seed and poria cocos quantum dots and a pericarpium citri reticulatae and liquorice pi-pi stacking network, the blood-brain barrier penetration rate is greatly increased, and hypothalamic CRH release is adjusted.

The invention belongs to the technical field of biological medicine, and relates to application of a clerodendranthus spicatus tea bag in regulating intestinal excretion and reducing uric acid. One of the purposes of the invention is to provide the application of the clerodendranthus spicatus teabag in regulating intestinal tracts to reduce uric acid According to a preferred embodiment, the clerodendranthus spicatus teabag regulates ATP binding cassette transporter G2 and inhibits uricase activity. The invention provides the application of the clerodendranthus spicatus teabag in regulating the intestinal microbial environment and reducing uric acid, and the clerodendranthus spicatus teabag has remarkable beneficial effects. The clerodendranthus spicatus teabag can effectively regulate the structure and the function of intestinal microflora, especially the enrichment amount of characteristic bacteria Muriaculum in the intestinal tract, further strengthens the probiotic activity of the intestinal flora, and is helpful for maintaining the steady state of uric acid in the body. The multi-way synergistic effect not only provides an innovative strategy for preventing and treating hyperuricemia and related metabolic diseases, but also avoids side effects possibly brought by traditional medicines, and shows good application prospects and clinical values.

The application provides application of a TT2-SCT1 / SCT2-WR2 regulation channel in plant heat stress tolerance. The application first discloses a new signal channel involved in plant heat tolerance: a TT2-SCT1 / SCT2-WR2 signal channel; wherein, TT2 is a negative regulation factor for regulating the heat tolerance of plants or protecting (maintaining) the yield of plants in Gramineae under high temperature, SCT1 / SCT2 are also negative regulation factors for regulating the heat tolerance of plants or protecting (maintaining) the yield of plants in Gramineae under high temperature, and WR2 is a positive regulation factor for playing a role, which is beneficial to maintaining the homeostasis in plants. The application has important theoretical significance for genetic improvement of plant traits.

The invention relates to the technical field of probiotics and application thereof, in particular to a plant lactobacillus ZKAW02 strain, a fungicide and application of the fungicide. The invention relates to a plant lactobacillus ZKAW02 strain, which is classified and named as plant lactobacillus, the plant lactobacillus ZKAW02 strain is preserved in Guangdong Province Microbial Culture Collection Center on September 27, 2024, and the preservation number is GDMCC No: 65219. The invention further discloses a preparation method of the plant lactobacillus ZKAW02 strain. The plant lactobacillus ZKAW02 strain has the advantages that the plant lactobacillus ZKAW02 strain is named as plant lactobacillus, and the plant lactobacillus ZKAW02 strain is preserved in Guangdong Province Microbial Culture Collection Center on September 27, 2024. The lactobacillus plantarum ZKAW02 has the effects of remarkably reducing the cholesterol level, remarkably regulating the blood fat level of the liver and excrement and remarkably increasing the short-chain fatty acid level in the excrement of a high-fat rat, so that the expression level of lipid metabolism related signal channel genes is regulated, the intestinal flora homeostasis is regulated, the liver tissue damage is repaired, and the anti-tumor effect is achieved. The effects of regulating lipid metabolism and intestinal health are achieved.

The invention discloses application of an Hspa5 inhibitor in preparation of a medicine for preventing or treating anxiety disorder. An anxiety mouse model is constructed through chronic constraint stress (CRS), and in combination with medial amygdala kernel (MeA) transcriptome sequencing and qPCR verification, it is found that the endoplasmic reticulum molecular chaperone Hspa5 is remarkably up-regulated in the anxiety state. Furthermore, an Hspa5 specific inhibitor HA15 is locally injected into a MeA brain region, so that the anxiety-like behavior induced by the CRS is remarkably improved, and the exploration time of an open field experiment central region, the exploration time of an open arm of an elevated cross labyrinth and the exploration time of a bright box of a bright-dark box experiment are prolonged. The invention discloses the function of Hspa5 as a novel anti-anxiety target for the first time, and provides a direct experimental basis and a transformation direction for developing a novel anti-anxiety drug which is non-monoamine and targets an endoplasmic reticulum homeostasis.

The invention discloses an immune homeostasis supporting agent based on mushroom active ingredients and fungal polysaccharides, and relates to the technical field of biological medicine and functional foods.The method comprises the following steps that a pleurotus citrinopileatus homeostasis adjusting extracting solution is prepared, specifically, pleurotus citrinopileatus sporocarp powder is extracted with water at the temperature of 80-100 DEG C according to the material-liquid ratio of 1 g: 35-45 mL, and a pleurotus citrinopileatus homeostasis adjusting extracting solution is obtained; the leaching time is 30-60 minutes, so as to obtain pleurotus citrinopileatus leaching liquor; the pleurotus citrinopileatus leach liquor is sequentially subjected to vacuum concentration and decoloration treatment, a pleurotus citrinopileatus steady-state regulation extracting solution with the concentration being 0.5-2 g / mL is obtained, and the pleurotus citrinopileatus steady-state regulation extracting solution shows the two-way regulation characteristic in an experimental model, so that the immunologic function index in the immunosuppression state can be improved, the excessive immune response can be relieved, and the immunologic function index of the pleurotus citrinopileatus can be improved. Therefore, the immune system is guided and maintained in a balanced and stable optimal state.

The invention belongs to the technical field of biological medicines, and discloses a B cell and cartilage cell senescence targeting osteoarthritis treatment medicine. The invention provides an application of an anti-MIF antibody or an antigen binding fragment thereof as a B cell targeting immunomodulator in osteoarthritis treatment drugs, the anti-MIF antibody or the antigen binding fragment thereof regulates and controls an MIF / HMGB1 / MMP13 signal axis through a neutralization effect with MIF, so that the MIF and B cells are significantly co-localized, expression of HMGB1 in the B cells is promoted, and the osteoarthritis treatment effect is improved. The senescence of B cells is reduced and the B cells are promoted to regulate or repair phenotype transformation so as to destroy chronic inflammatory circulation and diffusion of pathogenic plasma cells, and the expression of MMP13 in joint tissues is reduced so as to maintain the steady state of cartilage tissues; the preparation method has an excellent application prospect in preparation of an OA intra-articular injection drug which realizes rapid anti-inflammatory and long-term cartilage protection effects and can realize a lasting curative effect through low-frequency drug delivery.

The generation of complex organ tissues from human embryonic and pluripotent stem cells (PSCs) remains a major challenge for translational studies. It is shown that PSCs can be directed to differentiate into intestinal tissue in vitro by modulating the combinatorial activities of several signaling pathways in a step-wise fashion, effectively recapitulating in vivo fetal intestinal development. The resulting intestinal “organoids” were three-dimensional structures consisting of a polarized, columnar epithelium surrounded by mesenchyme that included a smooth muscle-like layer. The epithelium was patterned into crypt-like SOX9-positive proliferative zones and villus-like structures with all of the major functional cell types of the intestine. The culture system is used to demonstrate that expression of NEUROG3, a pro-endocrine transcription factor mutated in enteric anendocrinosis is sufficient to promote differentiation towards the enteroendocrine cell lineage. In conclusion, PSC-derived human intestinal tissue should allow for unprecedented studies of human intestinal development, homeostasis and disease.

The present invention relates to the cosmetic field, in particular to cosmetic agents able to restore or maintain cutaneous homeostasis. More precisely, the invention relates to the cosmetic use of an agent able to increase synaptopodin expression in keratinocytes for improving, restoring or maintaining cutaneous homeostasis, preferably epidermal homeostasis, in a healthy skin. The invention also relates to cosmetic compositions comprising the same as well as cosmetic methods using the same.

The present disclosure relates to a functionalized statistic chitosan of weight average molecular mass between 100 kDa and 1000 kDa and of formula (I):whereineach Rc is independently a moiety comprising a chelating agent,each Z is independently a linker which is a single bond or a hydrocarbon chain containing between 1 and 12 carbon atoms, said hydrocarbon chain is linear or branched and optionally contains one or more unsaturations and one or more heteroatoms,x is between 0.005 and 0.7, preferably between 0.05 and 0.7,y is between 0.01 and 0.7, preferably between 0.05 and 0.2,the ratio y / x being greater than or equal to 0.05, preferably greater than or equal to 0.15, andthe sum x+y being greater than or equal to 0.15, for use in the treatment of diseases characterized by local inflammation induced by and / or inducing a deregulation of metal homeostasis and increased oxidative stress, in a subject in need thereof.

The invention discloses a composition, a medicine and application of the medicine in tumor treatment, and relates to the technical field of tumor treatment. The composition comprises a methacrylic acid-ethyl acrylate copolymer and photosynthetic bacteria, wherein the photosynthetic bacteria are coated in the methacrylic acid-ethyl acrylate copolymer. According to the invention, not only are the problems of insufficient stability and low bioavailability of oral bacteria in vivo solved, but also intestinal-tumor immune cascade reaction and flora homeostatic reconstitution are realized through a multi-way action mechanism, and the preparation has an important clinical application prospect.

This invention provides a genetically engineered biomimetic microsphere for hydration remodeling, its preparation method, and its application, belonging to the field of biomedical technology. This invention develops an injectable composite system, GBA / SRGN@HADA@GelMA, which possesses the ability to regulate hydration and intervene in genes through interface biomimetic design and multi-level functional integration. It uses HADA as a moisturizing outer layer, provides mechanical support through GelMA microspheres, and achieves targeted delivery of SRGN siRNA through G5-GBA loading, thereby achieving synergistic regulation of the degenerative nucleus pulposus microenvironment. GBA / SRGN@HADA@GelMA reduces the expression of inflammatory factors and matrix degradation genes, and significantly promotes the accumulation of HA and lubricating proteins. This enhances the water retention capacity and interfacial lubrication of the nucleus pulposus, thereby improving compressive elasticity and energy absorption capacity. This invention is the first to combine continuous water regulation, lubrication, mechanical buffering, and extracellular matrix homeostasis regulation to synergistically delay intervertebral disc degeneration, providing an excellent treatment strategy for degenerative intervertebral disc diseases.

The invention belongs to the technical field of biomedicine, and relates to a novel application of 3-O-methyl chrysotoxin, in particular to an application of 3-O-methyl chrysotoxin in preparation of a medicine for treating xerophthalmia. The core of the 3-O-methyl chrysotoxin disclosed by the invention is that the 3-O-methyl chrysotoxin effectively relieves corneal epithelial cell injury induced by hyperosmosis and inhibits oxidative stress and proinflammatory factor release by activating an EGFR (Epidermal Growth Factor Receptor) signal channel. In-vitro and in-vivo experiments prove that the composition can remarkably enhance cell activity, reduce apoptosis and active oxygen accumulation and repair the steady state of a tear film. The compound is applied to preparation of xerophthalmia drugs and has important clinical value.

The invention provides application of an NLP4 gene in regulation and control of phosphorus homeostasis of rice, the nucleotide sequence of the NLP4 gene is shown as SEQ ID NO.1 in a sequence table, and the amino acid sequence of the NLP4 gene is shown as SEQ ID NO.3 in the sequence table.

The application provides bifidobacterium longum MG-G763 for improving constipation, and belongs to the technical field of microorganisms. The bifidobacterium longum MG-G763 provided by the application can effectively relieve constipation by integrating multiple effects such as nerve regulation, immune regulation, barrier repair and flora regulation, and systematically restoring intestinal function homeostasis. The bifidobacterium longum MG-G763 can significantly improve the defecation particle number and defecation weight of constipated mice, shorten the time for defecating the first black stool, improve the small intestinal transport rate of the mice, effectively improve and relieve the defecation condition of the constipated mice, and significantly increase the amount of intestinal beneficial bacteria and reduce the amount of harmful bacteria, thereby promoting intestinal health.

The present application relates to the technical field of genetic engineering, and specifically discloses a Chlamydomonas reinhardtii SnRK2.7 gene and application thereof in adaptation to osmotic stress and maintenance of cell survival. The present application first discloses SnRK2.7 the key biological function of the gene in maintaining Chlamydomonas cell homeostasis. By knocking out the gene through CRISPR / Cas9 gene editing technology and adopting an expression frame driven by an endogenous promoter for genetic back complementation, it is confirmed that SnRK2.7 the gene positively regulates cell osmotic stress tolerance and maintains cell long-term survival. In addition, the present application first discovers that the SnRK2.7 protein is specifically located in the Chlamydomonas expansion vesicle, which provides direct spatial evidence for the cell function. The above discovery not only expands the understanding of the osmotic stress signal transduction mechanism of Chlamydomonas, but also provides a new gene target and research tool for the improvement of microalgae stress adaptability, and has important basic research value and biological technology application potential.

The application belongs to the technical field of genetic engineering, and particularly relates to a citrate synthase gene AtCS The application relates to the application of a citrate synthase gene in regulating the anti-aging ability of seeds and a method for screening seed anti-aging agents. AtCS The application provides a citrate synthase gene AtCS The nucleotide sequence of the citrate synthase gene is shown as SEQ ID NO. 1. The citrate synthase gene AtCS (referred to as AtCS gene) encodes a citrate synthase located in mitochondria. AtCS The gene plays a key role in regulating the active oxygen homeostasis and anti-aging ability of seeds. AtCS The germination rate of the seed of the gene knockout mutant significantly decreases after aging, membrane lipid peroxidation products accumulate, and the active oxygen scavenging system is damaged. The mutant can be used for screening seed anti-aging agents, and provides a new solution for seed anti-aging.

The invention provides rhizoma alismatis purified polysaccharide as well as a preparation method, an identification method and application thereof, the rhizoma alismatis purified polysaccharide is a functional component with a novel structure in a traditional Chinese medicine rhizoma alismatis water extract obtained by further extraction and purification, the administration efficiency is effectively improved, and the pharmacodynamic substances are clarified; in-vivo and in-vitro experiments show that the polysaccharide can improve the antioxidant capacity of the liver and relieve inflammatory response; synthesis and metabolism of liver bile acid can be adjusted, cholestasis of the liver is relieved, and bile acid circulation is promoted so as to relieve acute liver injury caused by acetaminophen; the effect of promoting the recovery of liver injury patients is obvious; and the compound also can be used as prebiotics to improve the homeostasis of intestinal microorganisms and promote the synthesis of short-chain fatty acids so as to have beneficial effects on the liver.

This invention discloses a method for screening or assessing the risk of GLP-1 receptor agonist-related mood disorders. It reveals for the first time that TTR is a key molecular switch for the bidirectional mood effects of GLP-1 receptor agonists, and its expression level needs to be maintained within a specific physiological window to ensure mood homeostasis. This invention assesses the risk of developing mood disorders after using GLP-1 receptor agonists by detecting the expression level or activity of TTR in subjects. This invention also provides kits for assessing the mood side effects of GLP-1 receptor agonists, methods for screening candidate drugs for the prevention or treatment of related mood disorders, and pharmaceutical compositions containing TTR or its agonists. This invention elucidates the molecular mechanism by which GLP-1 receptor agonists inhibit TTR expression through the cAMP / PKA / Gli3 signaling pathway, thereby affecting the ERK / CREB pathway and synaptic plasticity, providing novel targets and strategies for precise drug use, risk warning, and intervention for related mood disorders using GLP-1 receptor agonists.

The application relates to the technical field of health monitoring data analysis, and discloses a cause contribution degree calculation and joint intervention evaluation method and system for sugar homeostasis imbalance, wherein the method comprises the following steps: acquiring a multi-source original monitoring data set; performing a rhythm disturbance basic input set construction task; performing a periodization abnormality representation set construction task; performing a preprocessing task; performing a cause contribution degree time sequence calculation task; performing joint intervention evaluation processing; and outputting a joint intervention evaluation result set. Compared with a scheme for performing coarse-grained evaluation on sugar metabolism abnormalities by relying on a daily average blood glucose index in the prior art, especially under the condition of long-term shift work and circadian rhythm disorder, the technical problem that dynamic migration identification of sugar homeostasis imbalance causes in a continuous time window cannot be realized. Since the application introduces multi-source heterogeneous data alignment modeling under a unified time axis and combines an individual circadian baseline fitting mechanism, the cause explanation capability of sugar homeostasis abnormality evaluation is improved.

The invention discloses an ROS responsive hydrogel delivery system as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The hydrogel delivery system is prepared from sulfur-doped ginger carbon dots (SGCDs) and an ROS (reactive oxygen species) responsive sulfhydrylation hyaluronic acid (HS) hydrogel matrix, the SGCDs have excellent antioxidant and anti-inflammatory activity, and can be used for clearing ROS and simulating SOD and CAT enzyme functions; the HS hydrogel matrix triggers gelling in an inflammation part high ROS environment, and targeted drug release and colitis part retention are achieved. Through the synergistic effect of the SGCDs and the HS hydrogel matrix, the delivery system can efficiently remove ROS, promote polarization of macrophages from M1 type to M2 type, up-regulate an anti-inflammatory factor IL-10, down-regulate proinflammatory factors TNF-alpha, IL-1beta and IL-6, repair Occludin and remodel the intestinal flora homeostasis.

The invention provides an acoustoelectric coupling electrosensitive heterogeneity short fiber as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. According to the invention, a polydopamine (PDA) catechol group is taken as a multifunctional site, conductive graphene oxide and piezoelectric BaTiO3atFe are deposited on a short fiber in situ through pi-pi conjugation and coordination to construct a three-dimensional integrated electro-sensitive heterogeneity short fiber, ultrasonic external field regulation and control can be accurately responded through the synergistic effect of piezoelectric-conductive double elements, and the three-dimensional integrated electro-sensitive heterogeneity short fiber is obtained. In-vivo multi-stage bio-electricity signals are generated and transmitted, the electro-sensitive heterogeneity of bacteria and cells and the continuous process of cascade antibiosis and osteogenesis are considered, bone homeostasis balance is maintained, and infectious bone defect repair is promoted. According to the method, cross-scale conduction and efficiency optimization of the bio-electricity signals are achieved, the antibacterial-osteogenesis penetration effect is triggered in a cascading mode through the space-time difference electric regulation and control strategy, an innovative solution is provided for precise electric regulation and control treatment of infectious bone defects, and the method has important clinical transformation potential.

Disclosed in the present invention are a BRIX1 inhibitor and use thereof in resisting tumors. Specifically, disclosed in the present invention is that nucleolin BRIX1 is a key regulator of the homeostasis between ribosome biogenesis and p53 activation. The research results of the present invention show that the inhibition of BRIX1 can induce nucleolar stress, leading to activation of p53, thereby inhibiting tumor growth. In addition, the present invention constructs an engineered exosome whose surface is decorated with iRGD and which is loaded with BRIX1-specific siRNA and used for cancer therapy.

The invention relates to the technical field of functional food preparation, in particular to a composition capable of improving colitis and a preparation method thereof, and the composition comprises glutamine, a composite plant extract, a zinc source and soluble dietary fibers. Wherein the compound plant extract comprises hericium erinaceus extract, ginseng extract and astragalus extract; the zinc source is zinc glycinate, zinc gluconate and the like; the soluble dietary fiber is fructo-oligosaccharide, inulin, galactomannan oligosaccharide and the like. The preparation method comprises the following steps: directly carrying out dry mixing or carrying out fluidized bed granulation on glutamine to obtain particles A, mixing the composite plant extract and the dietary fibers with ethanol, carrying out spray drying to obtain particles B, and carrying out three-dimensional mixing on the particles B and the zinc source. The composition can maintain the homeostasis of intestinal epithelial cells, reduce oxidative stress and inflammatory response, promote mucosal repair and effectively improve ulcerative colitis, Crohn's disease and chemoradiotherapy-related intestinal mucositis through multi-target action.

The application discloses a phytosterol and phytosterol ester complex agent and application thereof, wherein the complex agent comprises phytosterol and phytosterol ester with a mass ratio of 1:10. The application aims to improve the water solubility and bioavailability of phytosterol, realize synergistic effect by compounding phytosterol and phytosterol ester, interfere with the lipid acquisition of coccidia from multiple targets, up-regulate the expression of cecal tight junction protein to repair the intestinal barrier, inhibit the release of serum and cecal pro-inflammatory factors to relieve inflammatory reaction, regulate the expression of genes related to lipid synthesis and fatty acid oxidation to remodel lipid metabolism homeostasis, and then effectively inhibit the growth and development of coccidia, and significantly improve the growth performance of broilers infected with coccidia.

The invention discloses an in-situ water treatment and micronutrient slow release device for a seawater aquarium, and relates to the technical field of aquarium maintenance equipment. The device comprises a probiotic microorganism attachment framework and a plurality of layers of slow-release nutrition balls. The framework is composed of an upper biochemical filter bin and a lower slow release bin, and the upper filter bin is of a dense honeycomb structure so as to provide a huge microorganism attachment surface area; the lower slow-release bin is a drawable drawer with micropores, and the top surface of the lower slow-release bin is closed to protect the upper flora. The slow-release ball adopts a three-layer layered design, wherein the outer layer is a quick start and flora colonization layer; the middle layer contains polyhydroxyalkanoate PHA or PHBV and a microelement chelate, and is used as an algae phase competition and microelement supplement layer; and the inner layer contains a plurality of amino acids and astaxanthin and is used as a coral nutrition and homeostasis maintaining layer. The device is specially designed for the seawater coral jar, nutrient substances are released in a time sequence, the problems of element fluctuation and coral maintenance are solved, and efficient and stable maintenance of water quality is achieved.

The present invention relates to a 100% natural product consisting of natural matrices showing emerging properties, which allows to re-establish a correct metabolism in tissues infiltrated by cancer cells, adjuvating cancer treatment and tissue homeostasis. The product of the invention, as demonstrated by the inventors, is itself a natural matrix, representing native natural intelligence, said natural intelligence being the only capable to allow a physiological endogenous interconnection with other entities which are self-assembled in nature, such as the human species. By modulating tumor microenvironment and thus selectively inducing cancer cells mortality, the product achieves reconstitution of conditions favourable to tissue homeostasis in tissues infiltrated by cancer cells. Factually, the invention allows for a shift of paradigm based on the passage from a deterministic validation of properties to a probabilistic one based on functional redundancy logics, that will grant an industrially viable source of innovation for manufacturers in the field of 100% natural therapeutic or beneficial products.

The invention relates to the technical field of compositions, and particularly discloses a composition for bidirectionally regulating diarrhea and constipation and promoting Akk proliferation and application. The composition for bidirectionally regulating diarrhea and constipation and promoting Akk proliferation, provided by the invention, comprises bifidobacterium longum subsp. Infantis i18 and casei paracasei N1115. In the composition provided by the invention, all the components have a synergistic effect, so that diarrhea and constipation can be safely, effectively and bidirectionally regulated and improved, the intestinal microecological steady state can be further maintained by promoting Akk proliferation, and the composition has a wide application prospect.

The invention discloses a macrophage-platelet targeting delivery system carrying genes and mitochondria as well as a preparation method and application of the macrophage-platelet targeting delivery system. The platelet loaded with the PPAR gamma gene nano-composite is covalently linked to the surface of macrophage through a click chemical reaction, and a novel cell composite carrier is constructed. According to the system, the natural chemotaxis of macrophages to an injured part is fully utilized to realize precise targeting, and PPAR gamma genes and functional mitochondria are synchronously released through platelet activation in an injured microenvironment, so that the energy metabolism and lipid homeostasis of the macrophages are cooperatively regulated and controlled, the cellular burial function of the macrophages is effectively recovered, and tissue repair and regeneration are promoted. Experimental results show that the delivery system is reliable in preparation method and high in targeting efficiency, axon regeneration, myelin sheath repair and motor function recovery can be remarkably promoted in a spinal cord injury model, and a brand-new synergistic treatment strategy is provided for tissue injury repair.