2017 results about "Spleen" patented technology

The invention discloses a bran coat polypeptide GR-12 with an immunoregulation function and an application of the bran coat polypeptide GR-12, and the amino acid sequence of the bran coat polypeptide is Gly-Gln-Pro-Trp-Pro-Pro-Ala-Ser-Phe-Ala-Cys-Arg (GQPWPPASFACR, which is called GR-12 for short). Experiments find that the GR-12 can significantly enhance the proliferation activity and phagocytic activity of macrophages RAW264.7 and promote the macrophages RAW264.7 to secrete cytokines; meanwhile, it is found that the GR-12 can significantly enhance the immunomodulatory function of an immunosuppressive mouse induced by cyclophosphamide, specifically, the body weight, thymus index and spleen index of the immunosuppressive mouse are significantly recovered; and the secretion of cytokines and immune globulins in mouse serum is obviously increased. The bran coat polypeptide GR-12 is expected to be further researched and developed into a related medicine product with an immune regulation function, and has a wide application prospect.

A three-dimensional scaffold for use in engineered tissue includes a repeated 3D geometry; and at least one of a hydrogel, a biocompatible polymer, and a bioprintable polymer. The repeated 3D geometry may include an open geometry including a plurality of interconnected nodes configured to be seeded with living cells. The scaffold may be formed via bioprinting. The three-dimensional scaffold may also be used for (1) 3D tissue modelling (for liver, kidney, gut, pancreas, heart, lung, spleen, etc.), (2) disease modeling of different tumor types such as breast, colorectal, lung, liver, brain, ovarian and others, (3) drug testing / therapeutic screening of small molecule drugs, peptides, proteins, antibodies, ADCs, gene therapies, RNA-based therapeutics, cell therapies, and tissue therapies, and (4) therapeutic / drug delivery (i.e., via delivery device that can be used to control drug release based on different patterns).

The invention relates to the technical field of artificial intelligence, and discloses an artificial intelligence-based spleen and liver trauma model establishment method, which comprises the following steps of: S01, acquiring target data; step S02, obtaining research data; s03, inputting research data into the improved U-Net network model, and performing organ segmentation to obtain a target organ contour; s04, performing three-dimensional reconstruction to obtain a trauma model corresponding to the target organ, and performing hemodynamic analogue simulation; through the step S03, construction of the improved U-Net network model is facilitated, compared with a traditional U-Net network model, the improved U-Net network model can significantly improve the accuracy and robustness of organ segmentation, the effectiveness and accuracy of the spleen and liver contour are enhanced, and an effective foundation is laid for subsequent three-dimensional modeling based on the spleen and liver contour.

The invention discloses a traditional Chinese medicine composition with the effects of benefiting qi, nourishing blood, invigorating the spleen and tonifying the kidney and a preparation method of the traditional Chinese medicine composition. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: cistanche, ginseng, American ginseng, astragalus membranaceus, medlar, rhizoma polygonati, oyster peptide, angelica sinensis, radix rehmanniae preparata, donkey-hide gelatin, fructus amomi, pericarpium citri reticulatae, hawthorn, folium cortex eucommiae, radix puerariae, liquorice and the like. The preparation method comprises the following steps: respectively crushing the medicinal materials, dissolving the colla corii asini, mixing, adding water, granulating and the like. The composition can be prepared into various dosage forms such as granules, capsules, tablets, oral liquid and the like. Experiments show that the traditional Chinese medicine composition can effectively improve the symptoms of deficiency of qi and blood (increasing erythrocyte count and hemoglobin content), weakness of spleen and stomach (increasing body weight and improving pepsin activity) and kidney deficiency (reducing creatinine and urea nitrogen content and improving SOD activity), and acute toxicity experiments show that the toxicity is slightly reversible under high dosage, and the safety is good under therapeutic dosage. The traditional Chinese medicine composition has potential application value in the aspect of preparing medicines for benefiting qi, nourishing blood, invigorating spleen and tonifying kidney.

The invention relates to the technical field of deep processing of cattle spleen, in particular to cattle spleen active polypeptide capable of enhancing immunity and a preparation method and a functional product thereof. The preparation method comprises the following steps: mincing cattle spleen, adding water, uniformly mixing, heating and curing; adding bacillus licheniformis alkaline protease to carry out hydrolysis for the first time; adding papain and bacillus subtilis flavourzyme into the first hydrolysate to carry out hydrolysis for the second time; and performing enzyme deactivation on the second hydrolysate, and sequentially performing fishy smell removal, decolorization, filtration, concentration and drying treatment to obtain the cattle spleen polypeptide. The cattle spleen polypeptide prepared by the invention can obviously enhance the immune response of a body and play a role in enhancing immunity, can be applied to a functional product for enhancing immunity as a functional factor, has the advantages of low equipment requirement, simple process, easiness in operation, high extraction efficiency and the like, is suitable for industrial production, and has a wide application prospect. The scheme of the invention has good application and economic prospects.

The invention discloses bifidobacterium animalis and application thereof in allergic rhinitis products, and belongs to the technical field of microorganisms. The technical problem to be solved is that the existing common allergic rhinitis treatment means cannot meet the requirements of patients on safety, long-acting effect and treatment cycle. The invention provides an animal bifidobacterium subsp. Lactis Def +, and after an effective dose of animal bifidobacterium subsp. Lactis Def + is applied to a subject, the animal bifidobacterium subsp. Lactis Def + is found to be capable of remarkably relieving the allergic rhinitis symptom. Specifically, the symptoms of sneezing, dry nose and rhinocnesmus are reduced; the number of nasal septum mucosa intrinsic layer inflammation infiltration cells and nasal septum mucosa epithelium pathological changes are reduced; the IgA and IgE levels of serum are reduced; the levels of proinflammatory factors IL-4, IL-5 and IL-13 are reduced; the normal spleen index is maintained; the imbalance state of Th1 / Th2 and Th17 / Treg is effectively improved, and the body immunity is improved; a safe and long-acting scheme is provided for allergic rhinitis diseases.

The invention belongs to the technical field of biological medicine, and particularly relates to application of polypeptide in treatment of psoriasis. The amino acid sequence of the polypeptide provided by the invention is SEQ ID NO.1, so that the spleen-body ratio of a psoriasis mouse can be effectively reduced, and the inflammation level in the body can be reduced; the epidermal thickness of psoriasis mice and inflammatory factors in skin lesion tissues can be remarkably reduced, keratinocyte proliferation is reduced, and inflammatory factors released by inflammatory cells recruited to skin lesion positions are reduced. The polypeptide provided by the invention shows certain advantages in the aspects of relieving inflammatory response, promoting tissue repair and the like when being used for treating psoriasis. The invention provides a new method and means for treating psoriasis, and promotes the progress and development of medicine.

The invention discloses a traditional Chinese medicine diagnosis and treatment aided decision-making method and system, and relates to the technical field of traditional Chinese medicine intelligent diagnosis and treatment aided decision-making, and the method comprises the steps: carrying out the wavelet transformation analysis of pulse condition waveform time series data, extracting a pulse condition dynamic change feature sequence, inputting a tongue image color change rate and a pulse condition feature change rate into a space-time convolution network, and obtaining a time-space convolution network; generating a tongue pulse dynamic association index and outputting a preliminary syndrome classification; fourier transform analysis is carried out on the spleen channel acupoint impedance spectrum, false-true state judgment is carried out in combination with tongue pulse dynamic correlation indexes, preliminary syndrome classification is corrected, and a false-true state quantification result and corrected syndrome classification are output; and matching the corrected syndrome classification with the traditional Chinese medicine knowledge map, adjusting the dosage according to a virtual-real state quantification result, reversely verifying the drug-syndrome specificity through a curative effect database, screening an optimal treatment scheme, and outputting a personalized diagnosis and treatment scheme. According to the method, the syndrome classification precision is improved, and an objective basis is provided for personalized dose adjustment.

The invention provides a lipid compound based on a lipoic acid derivative, a composition as well as a preparation method and application of the lipid compound. When the lipoic acid-derived lipid provided by the invention is used as a delivery carrier of a nucleic acid drug, because disulfide bonds in the compound are split under the action of glutathione in cells, the compound is degraded, so that the timely release of nucleic acid is triggered, the cytotoxicity caused by accumulation of the compound in the cells is well reduced, and the bioavailability of the nucleic acid drug is improved. The biocompatibility is good. When the lipid nanoparticle composition is used as a carrier to deliver nucleic acid drugs, the lipid nanoparticle composition has excellent delivery efficiency and excellent spleen targeting performance, and the nucleic acid drugs can be preferentially delivered to the spleen.

The invention provides a traditional Chinese medicine composition for treating or improving asthma, and relates to the technical field of traditional Chinese medicine pharmacy. The traditional Chinese medicine composition is prepared from the following traditional Chinese medicine raw materials: inula flower, tabasheer, Japanese ardisia herb, cymbopogon distans, ligusticum, pyrrosia lingua, pawpaw, yam rhizome, rhizoma atractylodis, walnut meat, maltose, citron and liquorice. The monarch, minister, assistant and guide in the traditional Chinese medicine composition make the best responsibility, the traditional Chinese medicine composition aims at the symptoms of phlegm-qi obstruction and adverse rising of lung qi of asthma, also has the effects of strengthening the spleen, tonifying the kidney, soothing the liver and the like to consolidate the root cause, has the effects of dispelling wind and ventilating the lung, eliminating phlegm and lowering adverse qi, tonifying the spleen and eliminating dampness, warming the kidney and absorbing qi, and regulating the liver and regulating qi, and has the effects of purgation and tonification and treatment of both symptoms and root causes. The traditional Chinese medicine composition can effectively inhibit airway inflammation reaction of asthma model mice and improve clinical symptoms of the asthma mice, and is remarkable in treatment effect. The traditional Chinese medicine composition disclosed by the invention has a relatively high total effective rate for treating asthma, and has more advantages in the aspects of relieving clinical symptoms of asthma patients and improving lung functions.

The invention discloses a traditional Chinese medicine composition for treating autism spectrum disorder and application thereof, and belongs to the technical field of traditional Chinese medicine compositions. The traditional Chinese medicine composition is prepared from the following components in parts by mass: 4 to 10 parts of cortex cinnamomi, 4 to 10 parts of radix morindae officinalis, 4 to 10 parts of radix polygalae, 4 to 10 parts of rhizoma acori graminei, 5 to 10 parts of radix rehmanniae praeparata, 4 to 10 parts of radix angelicae sinensis, 8 to 20 parts of tortoise shell and 5 to 10 parts of herba dendrobii. From the perspective of overall compatibility, the cinnamon and the morinda officinalis in the composition can warm and tonify kidney yang, the prepared rehmannia root, the tortoise shell and the dendrobe nourish yin and tonify kidney to prevent excessive warm tonification, the angelica sinensis can enrich blood and activate blood and give consideration to spleen and stomach, the polygala tenuifolia can traffic heart and kidney, soothe the nerves and promote intelligence, and the rhizoma acori graminei can reduce phlegm, induce resuscitation and induce resuscitation. The medicines are matched with one another to jointly achieve the effects of tonifying spleen and kidney, replenishing essence and benefiting marrow, and inducing resuscitation and promoting intelligence, and the symptoms of autism are comprehensively improved from the fundamental pathogenesis of spleen-kidney deficiency and by considering pathological changes such as phlegm clogging the heart and the like.

The invention relates to the technical field of biological extraction, and provides a cattle spleen peptide composition as well as a preparation method and application thereof. The preparation method of the cattle spleen peptide comprises the following steps: S1, taking a cattle spleen, adding normal saline, and homogenizing to obtain first homogenate; s2, adding combined enzyme into the first homogenate, uniformly stirring, and performing first water bath treatment to obtain second homogenate; s3, adding chymotrypsin into the second homogenate, uniformly stirring, and performing second water bath treatment to obtain third homogenate; s4, centrifuging the third homogenate to obtain supernate; s5, performing ultrafiltration and drying on the supernate to obtain the cattle spleen peptide. The combined enzyme comprises subtilisin, bromelain and papain. Through the technical scheme, the problem of low cattle spleen peptide extraction rate in related technologies is solved.

The invention provides a spleen and stomach conditioning factor lactobacillus reuteri obtained by fermenting poria cocos powder. The strain has good acid resistance, cholate resistance and antibacterial ability. The invention further provides a probiotic preparation which has an obvious effect on improving the spleen and the stomach. In addition, the invention also provides a composite preparation composition containing Lactobacillus reuteri, and the composition effectively promotes normal peristalsis and digestion and absorption functions of gastrointestinal tracts by regulating the secretion level of gastrointestinal hormones, enhances the immunity of the organism, protects intestinal mucosa barriers, comprehensively improves the symptoms of weakness of the spleen and the stomach, and improves the overall health level.

A method for performing classification of a severity of at least one liver disease from non-invasive radiographic images is disclosed. The method comprises: providing radiographic images of slices of an abdomen of a patient; pre-processing said radiographic images by: segmenting a liver and a spleen, thus achieving a spleen binary mask and a liver binary mask per slice, and normalizing said images with each other, thus achieving normalized radiographic images per slice; for each slice, from the liver binary mask and said normalized radiographic images, extracting a liver parameter; from at least one spleen binary mask, extracting a spleen parameter; and classifying, in function of both parameters and by help of a trained Machine Learning model, the severity of the at least one liver disease between one among a group of liver disease at early stage and a group of liver disease at advanced stage.

The invention relates to a traditional Chinese medicine composition for treating spleen-kidney qi deficiency and stasis toxin obstruction type diabetic nephropathy, which can effectively solve the medication problem for treating spleen-kidney qi deficiency and stasis toxin obstruction type diabetic nephropathy. The traditional Chinese medicine composition is prepared from, by weight, 37-33 g of astragalus membranaceus, 27-33 g of centella asiatica, 18-22 g of ligusticum wallichii, 18-22 g of winged euonymus twig, 18-22 g of salvia miltiorrhiza and 14-16 g of prepared rehmannia root. The traditional Chinese medicine composition is prepared by removing impurities from the raw materials, washing, airing, smashing and evenly mixing. The components are simple, scientific and reasonable, are compatible according to the main and secondary relationship of monarch, minister, assistant and guide, are mutually correlated and compatible in function to play a role, and are combined to play the roles of clearing heat and promoting diuresis, detoxifying and activating blood, reinforcing qi and nourishing yin, and tonifying kidney and replenishing essence, so that the traditional Chinese medicine is effectively used for preparing the medicine for treating spleen-kidney qi deficiency and blood stasis toxin blocking type diabetic nephropathy, and is good in curative effect and free of toxic and side effects. The traditional Chinese medicine composition is a great innovation of medicines for treating spleen and kidney qi deficiency and stasis toxin blocking collateral type diabetic nephropathy, and has remarkable social and economic benefits.

The invention discloses a postoperative portal vein pressure prediction system, which relates to the technical field of portal vein pressure prediction, and is characterized in that three-dimensional structure regions of interest of the liver and the spleen are segmented based on preoperative and postoperative abdomen enhanced CT vein phase image data of a patient; image omics features including first-order statistical features, texture features and shape features are extracted from the segmented regions of interest of the three-dimensional structures of the liver and the spleen, and core feature screening is carried out on the extracted features; integrating the screened core features with clinical hemodynamic parameters and surgical parameters to construct a multi-modal prediction model of the portal vein pressure gradient; and predicting and outputting a portal vein pressure gradient predicted value by using the multi-modal prediction model of the portal vein pressure gradient, and determining a postoperative portal vein pressure gradient risk grade of the patient. The portal vein pressure gradient prediction method solves the problems of insufficient dynamic evaluation capability, multi-modal information integration and risk layering application in the prior art, and realizes non-invasive and accurate prediction of the portal vein pressure gradient.

A method for performing classification of the severity of at least one liver disease from non-invasive radiographic images is disclosed. The method includes: providing radiographic images of slices of the abdomen of a patient; pre-processing the radiographic images by: segmenting liver and spleen, thus achieving a spleen binary mask and a liver binary mask per slice, and normalizing the images with each other, thus achieving normalized radiographic images per slice; for each slice, from the liver binary mask and the normalized radiographic images, extracting a liver parameter; from at least one spleen binary mask, extracting a spleen parameter; and classifying, in function of both parameters and by help of a trained Machine Learning model, the severity of liver disease between one among a group of liver disease at early stage and a group of liver disease at advanced stage.

Compared with the prior art, the traditional Chinese medicine compound oral liquid is mainly used for invigorating qi and blood, regulating yin and yang, nourishing liver and kidney, strengthening spleen and stomach, strengthening muscles and bones and the like, a plurality of traditional Chinese medicine components are compounded and decocted to obtain liquid medicine, and finally specific modified polysaccharide, steviosin, sodium benzoate and ethylparaben are added, so that the traditional Chinese medicine compound oral liquid is prepared. The modified polysaccharide is screened and optimized and is added into the compound oral liquid, and the problems of serious wall hanging and high liquid medicine waste rate in the prior art are solved by reducing the low-temperature storage wall hanging rate and the hydrolysis rate in storage stability on the premise of not influencing the medicine effect and safety.

The invention discloses a traditional Chinese medicine composition for treating sarcopenia, the traditional Chinese medicine composition is prepared from six medicines of sugared ginseng, cistanche, rhizoma polygonati, poria cocos, gastrodia elata and bighead atractylodes rhizome through compatibility, the traditional Chinese medicine composition takes spleen strengthening, qi supplementing, kidney tonifying and essence replenishing as the treatment rule, syndrome differentiation treatment is carried out aiming at the spleen and kidney deficiency pathogenesis of sarcopenia, multi-target intervention on sarcopenia is achieved, and the traditional Chinese medicine composition has the advantages that the curative effect is good; the traditional Chinese medicine composition not only can quickly improve muscle strength and endurance functions, but also can continuously promote muscle mass reconstruction, and has dual effects of atrophy resistance and fibrosis resistance, and animal experiment results show that the traditional Chinese medicine composition has a remarkable curative effect on liver and kidney deficiency type sarcopenia.

The invention discloses a Chinese sage herb traditional Chinese medicine composition and application thereof, and relates to the technical field of traditional Chinese medicine, the Chinese sage herb traditional Chinese medicine composition comprises radix sophorae flavescentis, cortex phellodendri, herba violae, coptis chinensis, radix scutellariae, dandelion, rheum officinale, fructus kochiae, cortex dictamni, fructus cnidii, raspberry, leonurus, hairyvein agrimony and radix cyathulae, the traditional Chinese medicine composition has the effects of soothing liver and spleen to relieve damp heat, clearing lower jiao to remove stasis and turbidity; rhizoma coptidis, radix scutellariae, herba violae and herba taraxaci have the effects of clearing heat, purging fire, eliminating dampness, detoxifying, relieving restlessness and relieving itching; rheum officinale and motherwort are combined to purge and clear heat and promote blood circulation to remove blood stasis. The raspberry, the hairyvein agrimony and the fructus cnidii are combined to tonify deficiency, tonify qi and warm the kidney, so that evil is eliminated, and yin and blood are not injured; the cortex dictamni and the fructus kochiae dispel wind, arrest itching, kill parasites and detoxify; the medicines are combined to achieve the effects of clearing heat, drying dampness, dispersing blood stasis, tonifying deficiency, killing parasites and relieving itching.

The invention belongs to the technical field of biology, provides an anti-IL-8 monoclonal antibody, a variable region sequence of the anti-IL-8 monoclonal antibody and application of the anti-IL-8 monoclonal antibody, and discloses a monoclonal antibody with neutralizing interleukin-8 (IL-8) biological activity and the variable region sequence of the monoclonal antibody. The preparation method comprises the following steps: by taking IL-8 as an immune source and a mouse as an immune object, carrying out immune injection on the mouse, taking the spleen of the immune mouse to prepare a suspension, and carrying out cell fusion on the suspension and myeloma cells to obtain a hybridoma cell strain capable of expressing the anti-IL-8 monoclonal antibody so as to prepare the anti-IL-8 monoclonal antibody; according to the invention, a variable region amino acid sequence of the anti-IL-8 monoclonal antibody is cloned at the same time; the anti-IL-8 monoclonal antibody disclosed by the invention can be specifically combined with IL-8, so that the anti-IL-8 monoclonal antibody can be used for treating diseases related to abnormal or excessive or out-of-control expression and secretion of the IL-8.

The invention belongs to the field of traditional Chinese medicines, and relates to a traditional Chinese medicine composition for treating liver depression and spleen deficiency syndrome metabolism-related fatty liver disease, which is prepared from the following raw materials in parts by weight: 8 to 10 parts of ginseng, 10 to 15 parts of radix bupleuri, 10 to 15 parts of radix curcumae, 6 to 9 parts of ginger processed pinellia, 6 to 10 parts of fructus amomi, 10 to 15 parts of rhizoma atractylodis, 10 to 15 parts of poria cocos, 10 to 15 parts of semen hoveniae, 10 to 15 parts of radix rehmanniae, 8 to 10 parts of rhizoma polygoni cuspidati and 6 to 9 parts of lignum dalbergiae odoriferae. The traditional Chinese medicine composition is used for treating the metabolism-related fatty liver diseases from the aspects of liver depression, spleen deficiency and phlegm-blood stasis, starts from the core pathological chain of liver depression, spleen deficiency, phlegm-dampness and blood stasis, has the functions of soothing the liver, tonifying the spleen, resolving dampness, reducing fat and promoting blood circulation to remove meridian obstruction, and is particularly suitable for patients with liver depression, spleen deficiency and metabolism-related fatty liver diseases. Clinical tests prove that the traditional Chinese medicine composition has a good treatment effect on patients with liver depression and spleen deficiency syndrome metabolism-related fatty liver diseases, the total effective rate reaches 94% or above, and the traditional Chinese medicine composition is mild in medicine property, good in safety, stable in curative effect, not prone to relapse and suitable for being taken for a long time.

The invention discloses a preparation method of deer spleen aminopeptide powder in the field of bioactive substance extraction and functional material compositing, and the performance of the deer spleen aminopeptide powder is improved by compositing a multi-stage functional modified material and deer spleen aminopeptide. The preparation method comprises the following steps: cleaning, homogenizing and crushing fresh deer spleen, extracting with a phosphate buffer solution, adjusting the pH value, carrying out enzymolysis, inactivating enzyme, and treating with an ultrafiltration membrane and a nanofiltration membrane in a specific molecular weight range to obtain a concentrated solution; and mixing the concentrated solution with a multi-stage functional modified material under proper conditions, sterilizing, pre-freezing, and freeze-drying to obtain the deer spleen aminopeptide powder. Wherein the modified material is constructed through quaternization modification, nanopore loading, enzyme inhibitor coupling and targeting ligand modification, and has the functions of charge repulsion, steric hindrance, enzyme inhibition and targeting recognition. The deer spleen aminopeptide powder prepared by the invention has high stability and good bioavailability, and is suitable for functional food or health care products.

The invention discloses a traditional Chinese medicine compound oral preparation for treating male oligoasthenospermia, and belongs to the technical field of traditional Chinese medicine preparations. The rhizoma polygonati processed with wine, the prepared rehmannia root and the like are used for nourishing the liver and kidney to consolidate congenital, the codonopsis pilosula, the astragalus membranaceus and the like are used for invigorating spleen and replenishing qi to complement postnatal, the fried cowherb seed is used for activating blood circulation, and the salted semen plantaginis is used for promoting diuresis, so that the problems of insufficient spermatogenesis and low vitality caused by deficiency of the spleen and the kidney are fundamentally solved. Experiments and clinical researches show that the preparation can significantly improve the sperm quantity, activity and activity rate of oligoasthenospermia model mice and patients, the clinical total effective rate reaches 90%, the pregnancy rate reaches 53.3%, and the curative effect is superior to that of Wuzi Yanzong pills in a control group. The action mechanism covers regulation of blood lipid metabolism, improvement of hypothalamus-pituitary-gonad axis functions, repair of testicular seminiferous tubule structural damage and reduction of lipid deposition, and meanwhile, oxidative stress and inflammatory injury are relieved and spermatogenic cell functions are protected by regulating and controlling a PPAR signal channel and inhibiting molecular pathways such as Cga / Sting mediated cell apoptosis.

The invention discloses a highly inert Gd-DOTA-based contrast agent with a hydrophobic side chain as well as a preparation method and application of the highly inert Gd-DOTA-based contrast agent, and two novel Gd-DOTA-based contrast agents Gd-L1 and Gd-L2 are successfully developed by respectively connecting hydrophobic 3-phenyl propylamine and 3, 3-diphenyl propylamine to Gd-DOTABA. The two novel Gd-DOTA-based contrast agents remarkably improve the chemical inertness of the complex, the dissociation half-life period of the complex in a 1 M HCl solution at 37 DEG C is about 5 times that of Gd-DOTA, and a powerful guarantee is provided for clinical safety; the MRI (Magnetic Resonance Imaging) performance of the liver in a mouse shows that Gd-L1 is equivalent to commercially available Gd-BOPTA and is suitable for imaging of a liver and gall system; after the Gd-L2 is combined with the human serum albumin, the longitudinal relaxation rate is obviously increased (r1 = 14.8 mM <-1 > s <-1 >, 1.4 T, 37 DEG C), the blood elimination half-life period in a rabbit model is about 18 minutes, and the Gd-L2 is suitable for vascular MRI (Magnetic Resonance Imaging). The two contrast agents avoid the spleen residual problem, the organ accumulation possibility is reduced, and a safer and more efficient MRI diagnostic tool is provided for clinic.

The invention provides a compound or an N-oxide, a solvate, a pharmaceutically acceptable salt or a stereoisomer thereof, and also provides a composition containing the compound and application of the compound and the composition to delivery of a therapeutic agent or a prophylactic agent. According to the invention, the types of cationic lipid compounds are enriched, and more choices are provided for effective delivery of nucleic acid drugs, gene vaccines, small molecule drugs, polypeptides or protein drugs. After the lipid nanoparticles are formed with other lipid components, mRNA or drug molecules can be effectively delivered into cells to exert biological functions.

The invention belongs to the technical field of traditional Chinese medicine, and particularly relates to a traditional Chinese medicine composition for treating meniere disease membrane hydrolost and a preparation method and application thereof. The traditional Chinese medicine composition is prepared from the following raw material medicines: rhizoma alismatis, rhizoma atractylodis macrocephalae, poria cocos, gastrodia elata, ginger processed pinellia, pericarpium citri reticulatae and fresh ginger. The traditional Chinese medicine composition disclosed by the invention is small in dosage and special in effect, and dialectical compatibility is performed according to the phlegm-dampness theory of traditional Chinese medicine, combined with the pathological basis of the meniere disease and based on the treatment rules of transforming fluid retention, inducing diuresis, tonifying spleen and calming liver, so that the aim of treating both symptoms and root causes is achieved. Animal experiments prove that the traditional Chinese medicine composition can obviously relieve the cochlear hydrops degree of a rat with membranous hydrolost.

The invention provides a spleen peptide for promoting growth and tonifying spleen as well as a preparation method and application thereof, and belongs to the technical field of biochemistry. The invention provides a preparation method of spleen peptide capable of promoting growth and tonifying spleen. The preparation method comprises the following steps: degreasing spleen particles of healthy animals, fermenting after degreasing, performing subcritical water extraction, performing protease enzymolysis, fermenting an enzymolysis product, clarifying fermentation liquor, and then performing filtration, nanofiltration and spray drying treatment. According to the preparation method, the preparation process of the spleen peptide is reasonably set, so that the prepared spleen peptide is high in protein content, low in average molecular weight, easy to absorb and utilize, free of fat detection, capable of tonifying the spleen and promoting growth, capable of being dissolved into water to form transparent liquid, capable of being processed into tablets, powder and oral liquid, also capable of being used in common food, high in yield and suitable for popularization and application. The method is suitable for industrial popularization.

The invention relates to a composition for treating large yellow croaker pyramidoniasis as well as a preparation method and application thereof, and belongs to the technical field of aquaculture. The composition comprises the following components: curcumin, bile acid, beta glucan, bacillus subtilis freeze-dried powder, marine red yeast freeze-dried powder, vitamin C, vitamin E and ethylicin. When the feed additive is added into basal feed to feed large yellow croakers infected with the trypanosomiasis, the death rate of sick fishes can be effectively reduced, the polypide loading capacity is remarkably reduced, and pathological injuries of livers and spleens of the large yellow croakers are relieved. In addition, the composition can also improve the non-specific immunity of the fish body, improve the liver function, enhance the antioxidant capacity of the liver, and improve the lipase activity of the intestinal tract at the same time. Therefore, the composition can be used as a medicine or a feed additive for treating the large yellow croaker pyramidoniasis, has the advantages of small dosage and remarkable effect, and provides a new technical approach for solving the problem that the current large yellow croaker pyramidoniasis lacks an effective prevention and control means.

The invention discloses application of an SUMO inhibitor 2-D08 in preparation of drugs for treating chronic myelogenous leukemia (CML) and drug resistance of a tyrosine kinase inhibitor (TKI) of the SUMO inhibitor 2-D08. It is revealed for the first time that SUMOylation modification drives disease progression by stabilizing BCR-ABL protein, 2-D08 promotes BCR-ABL protein degradation by inhibiting the modification, and leukemia cell proliferation is remarkably inhibited. In-vitro experiments prove that the compound effectively inhibits the activity of TKI drug-resistant cells, and in-vivo experiments show that 5 mg / kg of the compound can improve liver and spleen infiltration of CML mice. The inhibitor provides a new scheme for overcoming drug resistance, and fills the application blank of SUMOylation modification in CML treatment.