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53 results about "Plaque area" patented technology

Coronary artery vulnerable plaque detection and analysis system

ActiveCN120318175AImage enhancementImage analysisCoronary arteriesVulnerable plaque
The invention relates to the field of cardiovascular medicine, and discloses a coronary artery vulnerable plaque detection and analysis system which comprises a data collection module used for collecting multi-mode imaging data of a coronary artery and identifying the blood vessel structure and the blood vessel type of the coronary artery, and a plaque area identification module used for positioning the branch opening position of the coronary artery and identifying the blood vessel structure and the blood vessel type of the coronary artery. Multi-class plaques of coronary arteries are separated out; the plaque classification detection module is used for extracting structural features of multiple categories of plaques, identifying vulnerable plaques and stable plaques in the coronary artery and setting a plaque classification detection system of the coronary artery; the vulnerable plaque evaluation module is used for constructing a coronary artery vulnerable plaque scoring mechanism according to the plaque vulnerability index, the plaque component and the radial wall strain value; and the result feedback module is used for generating a vulnerable plaque feedback result of the coronary artery in combination with the vulnerable plaque scoring mechanism and the plaque classification detection system. According to the invention, the accuracy of coronary artery vulnerable plaque detection can be improved.
Owner:MINHANGZONG HOSPITAL

Application of selenium-rich polypeptide to inhibition of NLRP3 inflammasome-related inflammation and regulation of cholesterol transport protection lipid metabolism abnormality

ActiveCN120081950AAntibody mimetics/scaffoldsMetabolism disorderCholesterolCoronary atherosclerosis
The invention belongs to the field of active peptides, and particularly relates to application of selenium-rich polypeptide in inhibiting NLRP3 inflammasome-related inflammations and regulating cholesterol transport protection lipid metabolism abnormality, the selenium-rich polypeptide is prepared by chelating Adi-Apo fusion protein as shown in SEQ ID NO: 3 and sodium selenite (Na2SeO3); the selenium peptide chelate has the effects of remarkably reducing the concentration of TC / TG in serum, reducing the liver lipid deposition and inflammation level and reducing the atherosclerotic plaque area proportion through high oxidation resistance and high anti-inflammatory activity, and can be used for treating and / or preventing lipid metabolism disorder diseases such as metabolism-related fatty liver diseases and coronary atherosclerosis.
Owner:ANKANG CENT HOSPITAL

Method and set-up for automatic detection and segmentation of fibrous cap with Thin Cap Fibroatheroma (TCFA) on OCT images

A method for evaluating plaque load based on OCT images is characterized in that fitting is carried out through the far end and the near end of a blood vessel lumen of the OCT images, a reference lumen at a plaque is fitted out, and then a middle membrane area and a plaque area can be calculated, so that the plaque load condition is evaluated; the imaging length of the intravascular OCT is usually 50-80 mm, the intravascular OCT generally comprises a far end, a lesion part and a near end, and the image of the near end is close to a coronary artery opening and has a larger diameter; the distal end is far away from the coronary opening, the diameter is relatively small, and the diameter of the healthy blood vessel from the proximal end to the distal end generally decreases linearly; when a blood vessel has plaque, the space-occupying effect causes the diameter of the lumen of the blood vessel at the plaque to become smaller. The invention can acquire the real plaque load through the conventional OCT image, provides basis for diagnosis and is beneficial to expanding the scope and quality of OCT diagnosis.
Owner:DATA JUICE LAB SP ZOO

Traditional Chinese medicine composition and application thereof in preparation of medicine for treating atherosclerosis

The invention discloses an application of a traditional Chinese medicine composition in preparation of a medicine for preventing and treating atherosclerosis combined with hyperhomocysteinemia and / or hyperlipidemia. The traditional Chinese medicine composition comprises the following components: ginseng, lucid ganoderma, safflower, musk, calculus bovis, bear gall, pearl, venenum bufonis, radix aconiti carmichaeli and borneol. According to the traditional Chinese medicine composition disclosed by the invention, through reasonable compatibility of all the components, at least one of indexes such as aorta plaque area, vasomotor inner diameter difference, intima-media thickness, blood fat level, homocysteine content and the like in atherosclerosis combined with hyperhomocysteinemia and / or hyperlipidemia can be effectively improved; the symptoms of atherosclerosis combined with hyperhomocysteinemia and / or hyperlipidemia are relieved from multiple aspects, and the progress of the disease course is blocked. The traditional Chinese medicine composition is controllable in quality, convenient for standardized production, safe and reliable in prescription and free of toxic and side effects on human bodies.
Owner:GUANGZHOU BAIYUNSHAN PHARMA HLDG CO LTD BAIYUNSHAN PHARMA GENERAL FACTORY

Application of ilicin K in preparation of anti-atherosclerosis drugs

The invention discloses application of ilicin K in preparation of an anti-atherosclerosis medicine, and belongs to the technical field of biological medicines. Tests find that the ilicin K can effectively reduce CD72hi macrophage infiltration in plaque lesions, inhibit inflammatory response, improve lipid metabolism, reduce plaque area and improve plaque stability, has remarkable advantages in the aspect of atherosclerosis resistance, and provides a new idea and choice for treatment and drug combination of atherosclerosis.
Owner:THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU UNIV OF CHINESE MEDICINE

Self-adaptive intrusive single-array-element photoacoustic endoscopic imaging near-field noise removal method based on spatial domain and morphological characteristics

The invention discloses a self-adaptive intervention type single-array-element photoacoustic endoscopic imaging near-field noise removal method based on a spatial domain and morphological characteristics. The method comprises the following steps that 1, original data of photoacoustic endoscopic imaging are obtained; step 2, adaptively generating a patch mask area; 3, preprocessing the image in a frequency domain; step 4, executing strip interference detection based on adaptive spatial domain filtering on the non-plaque region to obtain a spatial domain noise mask; step 5, screening strip-shaped noise areas; step 6, performing interpolation restoration on the noise area; 7, calculating the convergence degree and the noise level in the iteration process; and step 8, outputting a final result after polar coordinate transformation. The intrusive single-array-element photoacoustic endoscopic imaging method can effectively inhibit strip-shaped interference signals occurring in intrusive single-array-element photoacoustic endoscopic imaging and reduce the covering influence of background noise on target signals, so that the imaging quality of a near-end area is improved, and the structural definition and contrast ratio of overall imaging are remarkably optimized.
Owner:HARBIN INST OF TECH AT WEIHAI +1

Coronary artery vulnerable plaque identification method, storage medium and electronic equipment

PendingCN120339260AImage analysisCoronary arteriesVulnerable plaque
The invention provides an identification method for coronary artery vulnerable plaques, a storage medium and electronic equipment, and relates to the technical field of biomedical engineering.The identification method comprises the steps that blood vessel segmentation is conducted on a CCTA image; for each blood vessel segment obtained by segmentation, the following processing steps are performed: straightening curved surface reconstruction is performed to generate an SCPR image, and plaque detection is performed based on the SCPR image to position a first plaque area; analyzing the PCAT region corresponding to the blood vessel segment, and determining a CT value distribution diagram in spatial registration with the first plaque region; performing dynamic re-segmentation processing on the first plaque region according to the CT value distribution diagram to determine a second plaque region; and converting an image corresponding to the second plaque region, and inputting the converted image into the trained model to obtain an identification result. In the application, on the basis of the existing form-based vulnerable plaque identification, PCAT analysis is introduced to carry out joint identification, so that improvement of the overall identification performance is facilitated.
Owner:XIYUAN HOSPITAL OF CHINA ACAD OF CHINESE MEDICAL SCI

Solar cell, manufacturing method thereof and photovoltaic module

The invention discloses a solar cell and a manufacturing method thereof, and a photovoltaic module, relates to the technical field of photovoltaic, and is used for reducing the risk that the surface of a semiconductor substrate and a surface passivation layer are scratched, facilitating the improvement of the passivation effect of the surface passivation layer on the semiconductor substrate, and further facilitating the improvement of the conversion efficiency of the solar cell. The solar cell comprises a semiconductor substrate and a surface passivation layer. The semiconductor substrate includes a textured topography region. Suede structures are densely distributed in the suede morphology area. And the surface passivation layer is directly arranged on the suede morphology area. Wherein the suede morphology area comprises a non-plaque area and a plurality of plaque areas dispersed in the non-plaque area. In the thickness direction of the semiconductor substrate, the height of the plaque region is smaller than that of the non-plaque region. The photovoltaic module comprises the solar cell. The manufacturing method of the solar cell is used for manufacturing the solar cell.
Owner:LONGI PHOTOVOLTAIC TECHNOLOGY (ORDOS) CO LTD

Medical image processing apparatus and method

A medical image processing apparatus includes a catheter including a sensor and insertable into a blood vessel, a display, and a processor configured to: control the catheter to acquire tomographic images of the vessel, input the images into a model and acquire information indicating a condition of a part of the blood vessel, generate a histogram of a plaque area ratio in the vessel, acquire a length of a stent to be placed or a lesion to be treated, calculate a threshold for the ratio using the first histogram and the length, generate a graph indicating the ratio at each part of the blood vessel, and control the display to display the graph and the threshold in an overlapping manner.
Owner:TERUMO KK

Medical use of gelled cells loaded with sulfonated chitosan in the treatment of atherosclerosis

The application discloses medical use of gelated cells loaded with sulfonated chitosan in treatment of atherosclerosis, and belongs to the technical field of biological medicine. The gelated cells loaded with sulfonated chitosan take macrophages as host cells, and intracellular cross-linking forms a photocrosslinking hydrogel network composed of methacrylated hyaluronic acid and sulfonated chitosan. The gelated cells completely retain cell membrane structure and membrane surface protein expression, lose the proliferation ability, and have excellent blood lipid selective adsorption capacity and foam cell lipid metabolism regulation capacity. In-vivo and in-vitro experiments prove that the gelated cells can significantly reduce blood lipid levels of atherosclerosis model animals, reduce aortic plaque area, and have good biological safety, thereby providing a new strategy and candidate drug for prevention and treatment of atherosclerosis, and having a good clinical application prospect.
Owner:GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY

MKP7 targeted bionic nanoparticle preparation as well as preparation method and application thereof

The invention discloses an MKP7 targeted bionic nanoparticle preparation as well as a preparation method and application thereof. The MKP7 targeted bionic nanoparticle preparation is a bionic nanoparticle siMKP7 (at) NP-M-pHLIP, wherein the bionic nanoparticle siMKP7 (at) NP-M-pHLIP is coated with a macrophage membrane modified by pHLIP and is loaded with siMKP7. According to the preparation, a PLGA-PEI copolymer is used as a carrier core to wrap siMKP7, an outer layer is coated with a macrophage membrane, the surface of the membrane is modified with pHLIP targeting peptide, and spherical nanoparticles with bionic camouflage and pH sensitive targeting delivery functions are constructed. In-vitro experiments show that the nanoparticles can be effectively ingested by macrophages, and macrophage lipid deposition induced by ox-LDL is remarkably inhibited; in-vivo experiments prove that the preparation can be delivered to atherosclerotic plaque parts in a targeted manner, and by inhibiting expression of MKP7 in macrophages, the carotid plaque area is effectively reduced, the serum inflammatory factor level is reduced, and the blood lipid metabolism is regulated, so that development of atherosclerosis is inhibited, and the curative effect of atherosclerosis is improved. A high-efficiency and low-toxicity nucleic acid drug delivery system is provided for treatment of atherosclerosis.
Owner:JILIN UNIVERSITY

Dynamic recognition system and method for vulnerable plaque of intravascular ultrasonic image

The invention discloses a system and a method for dynamically identifying vulnerable plaques of an intravascular ultrasonic image. According to the system, plaque evolution information of continuous IVUS image frames is extracted by constructing a feature extraction module based on a space-time convolutional neural network; combining limited OCT annotation data through a transfer learning model; the blood flow wall shear force and the inflammatory marker IL-6 are fused in a plaque rupture risk prediction matrix, and a new mathematical calculation model is provided to predict the plaque risk. The system supports real-time analysis in an interventional operation and automatically marks a high-risk plaque area, and the vulnerable plaque detection sensitivity can reach 94% or above. The hardware architecture comprises an image acquisition unit, a deep learning calculation module and a labeling interaction module; the software architecture comprises a plaque recognition engine, a shear force calculation module, a biological data fusion interface and the like. The system has the advantages of being easy and convenient to operate, high in real-time performance, high in accuracy and the like, and an efficient intraoperative plaque risk assessment tool is provided for interventional therapy.
Owner:HUZHOU NO 1 PEOPLES HOSPITAL

Application of N1, N10-dicaffeoyl spermidine in preparation of medicine for preventing and treating atherosclerosis

The invention discloses an application of N1, N10-dicaffeoyl spermidine in preparation of a medicine for preventing and treating atherosclerosis. Belongs to the technical field of biological medicine. When the N1, N10-dicaffeoyl spermidine is administered to an experimental animal within the dosage range of 10-25 mg / kg, the area of ApoE- / -mouse atherosclerotic plaque induced by high homocysteine (HCY) can be remarkably reduced, meanwhile, the HCY level, the levels of four blood lipid items (TG, TC, LDL-C and HDL-C) and the levels of inflammatory factors such as IL-6, IL-1beta, TNF-alpha, MCP-1 and CRP in serum of the atherosclerotic mouse can be remarkably callback, and the N1, N10-dicaffeoyl spermidine can be used for treating atherosclerotic mice. All the results prove that the N1, N10-dicaffeoyl spermidine has the effect of improving the atherosclerosis and can be used for preventing and treating cardiovascular system diseases such as the atherosclerosis.
Owner:NINGXIA MEDICAL UNIV

Preparation method of compound SS-23 and application of compound SS-23 in preparation of medicine for preventing and / or treating atherosclerosis

The invention provides a preparation method of a compound SS-23 and application of the compound SS-23 in preparation of drugs for preventing and / or treating atherosclerosis, and belongs to the technical field of chemical drugs. The compound SS-23 is a compound as shown in a formula I or a pharmaceutically acceptable salt thereof. The phenolic acid glyceride compound SS-23 is separated and purified from rhizoma sparganii, and the compound can play a role in preventing and / or treating atherosclerosis by adjusting the blood fat level, reducing the plaque area and improving the vascular function. The compound SS-23 has remarkable potential in the aspect of preventing and / or treating atherosclerosis, provides a new treatment strategy for clinic, and has a good application prospect. Formula I.
Owner:CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE

A portulaca oleracea mouth composition for regulating blood fat and resisting atherosclerosis and a preparation method and application thereof

The present application relates to the field of food, health care products and medicine, and specifically relates to a purslane oral composition for regulating blood lipid and resisting atherosclerosis, and a preparation method and application thereof. The present application takes purslane extract, galangal extract and borneol as core components, and realizes the synergistic effects of lipid regulation, anti-inflammation, reduction of plaque area, stabilization of vulnerable plaque, mild anti-thrombus and myocardial protection through scientific proportioning. The bioavailability is significantly improved by combining the tongue sublingual absorption of borneol and the mucosal penetration of galangal volatile oil. The composition has comprehensive targets, definite effects and good safety, and can be made into oral dosage forms such as buccal tablets, dripping pills and oral disintegrating tablets, and is suitable for daily oral care of cardiovascular sub-healthy people.
Owner:XINGYUAN TIMES (GUANGZHOU) BIOTECHNOLOGY CO LTD

Plaque quantification system, method and storage medium

ActiveCN121421435BRealize quantitative detectionimprove accuracyImage analysisSurgeryPlaque areaTooth plaque
The application relates to the technical field of oral cavity equipment, and discloses a dental plaque quantitative analysis system, a method and a storage medium. The system comprises a dental plaque observation instrument and an upper computer. The dental plaque observation instrument is used for collecting a two-dimensional fluorescence image of teeth in an oral cavity area of a to-be-measured object. The upper computer is in communication connection with the dental plaque observation instrument. The upper computer is configured to: receive the two-dimensional fluorescence image of teeth sent by the dental plaque observation instrument; perform image segmentation and image depth estimation based on the two-dimensional fluorescence image of teeth, perform three-dimensional reconstruction, and obtain a three-dimensional tooth model containing a plaque area and a tooth area; then calculate the surface area of the plaque area and the surface area of the tooth area respectively, obtain an area ratio of the surface area of the plaque area to the surface area of the tooth area, and take the area ratio as a quantitative analysis result of dental plaque. The application can accurately calculate the area of the plaque area and realize high-precision quantitative detection of dental plaque.
Owner:XIAMEN ZENITH MEDICAL OPTICS CO LTD

A kidney-nourishing and phlegm-dissolving traditional Chinese medicine compound, a preparation method thereof and an anti-atherosclerosis application thereof

This invention belongs to the field of traditional Chinese medicine technology, and discloses a kidney-tonifying and turbidity-resolving traditional Chinese medicine compound, its preparation method, and its anti-atherosclerotic application. The effective components of the kidney-tonifying and turbidity-resolving traditional Chinese medicine compound, by mass, consist of 15 parts Rehmannia glutinosa (processed), 15 parts Astragalus membranaceus (raw), 9 parts Cistanche deserticola, 10 parts Nelumbo nucifera (lotus leaf), 20 parts Gynostemma pentaphyllum, 12 parts Crataegus pinnatifida, and 6 parts Citrus reticulata (dried tangerine peel). The preparation method of the kidney-tonifying and turbidity-resolving traditional Chinese medicine compound is simple, without any additives, and has strong pharmacological compatibility. The anti-atherosclerotic application of the kidney-tonifying and turbidity-resolving traditional Chinese medicine compound includes: including observation cases, grouping, measuring the CIMT value and plaque area of ​​the included cases, data processing, and result analysis. This invention's kidney-tonifying and turbidity-resolving traditional Chinese medicine intervention can reduce the CIMT value and carotid plaque area in patients with atherosclerosis, and has a significant anti-atherosclerotic effect.
Owner:LONGHUA HOSPITAL SHANGHAI UNIV OF TRADITIONAL CHINESE MEDICINE

Use of LAT1 inhibitor in the preparation of a medicament for treating atherosclerosis

ActiveCN118873667BOrganic active ingredientsCardiovascular disorderDiseaseGastrointestinal bleeding
The present invention relates to the use of LAT1 inhibitors in the preparation of drugs for treating atherosclerosis, belonging to the field of pharmaceutical technology. To solve the clinical problem that there is still a relatively high residual risk in advanced atherosclerosis under the current treatment strategies, the present invention provides the use of LAT1 inhibitors in the preparation of drugs for treating atherosclerosis. The present invention has confirmed that LAT1 inhibitors delay the progression of atherosclerosis by inhibiting the entry of leucine into macrophages, reducing plaque area and necrotic core; at the same time, LAT1 inhibitors can also enhance the mitochondrial function of macrophages, increase fatty acid oxidation, reduce lipid deposition in atherosclerotic plaques, increase the stability of atherosclerotic plaques, delay the development of atherosclerosis induced by a high-fat diet, and can be applied to patients in whom the use of other types of anti-atherosclerotic drugs is limited due to diseases such as combined gastrointestinal bleeding, aortic aneurysm or tumor.
Owner:HARBIN MEDICAL UNIVERSITY

Application of reagent for improving MRG15 gene expression in preparation of medicine for treating atherosclerosis

The invention relates to application of a reagent for improving MRG15 gene expression in preparation of a medicine for treating atherosclerosis, and belongs to the technical field of biological medicine. Based on the defects that no clear molecular marker for predicting the prognosis of the atherosclerotic patient exists at present and the existing anti-atherosclerotic medicine with the main purpose of lowering lipid cannot improve the prognosis of the patient, in order to improve the treatment effect and the prognosis of the atherosclerotic patient, follow-up visit and sample dyeing are performed on the patient, so that the prognosis of the atherosclerotic patient can be A new atherosclerosis related molecule, namely MRG15, is found, correlation between improvement of MRG15 gene expression and improvement of atherosclerosis is verified, and a new prognosis target is provided for fine management of atherosclerosis patients. In order to ensure the stability of the treatment effect, a specific agonist is screened, and an excellent anti-atherosclerosis effect is achieved. Through in-vivo verification, the plaque area is reduced by 60%-70% after the small molecule medicine litamilast is applied.
Owner:FUDAN UNIVERSITY

Method and apparatus for identifying vulnerable coronary plaque based on multimodal large language model (MM-LLM)

A method and apparatus for identifying a vulnerable coronary plaque based on a multimodal large language model (MM-LLM) are provided. The method includes: acquiring a target 3D coronary computed tomography angiography (CCTA) image and a target straightened curved planar reformation (SCPR) image; acquiring plaque mask information of a blood vessel based on the target SCPR image; acquiring basic plaque data based on the plaque mask information; acquiring fluid dynamics data of each plaque area based on the SCPR image; acquiring basic clinical testing information; standardizing above image data, structural data, and textual data separately, and performing, by a regression mapping network, feature fusion to acquire a first fusion feature; acquiring a trained vulnerable plaque identification LLM; and inputting the first fusion feature into the vulnerable plaque identification LLM to acquire an identification result. The method solve problems of poor single-image feature expression ability and low identification performance in traditional technologies.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL +1

Application of pentadecanoic acid in preparation of product for treating and / or preventing atherosclerosis

The invention relates to the technical field of biological medicine, and discloses application of pentadecanoic acid in preparation of a product for treating and / or preventing atherosclerosis, and the molecular formula of the pentadecanoic acid is CH3 (CH2) 13COOH. Experiments show that pentadecanoic acid can significantly reduce the lipid plaque area of an atherosclerosis model mouse, the content of low-density lipoprotein cholesterol in blood and inflammatory response, has good safety and can be used for atherosclerosis treatment.
Owner:SUN YAT SEN UNIV

Traditional Chinese medicine formula for preventing and treating body artery vascular diseases

The invention discloses a traditional Chinese medicine formula for preventing and treating body artery and blood vessel diseases, and relates to the technical field of pharmacy, in particular to a traditional Chinese medicine formula for preventing and treating body artery and blood vessel diseases, the traditional Chinese medicine composition is prepared from the following raw material medicines: 100g of radix puerariae, 100g of herba epimedii, 100g of herba leonuri, 50g of dioscorea panthaica, 50g of raw endothelium corneum gigeriae galli, 50g of fructus aurantii immaturus, 50g of rhizoma dioscoreae nipponicae, 50g of lumbricus and 50g of kapok leaves. Pharmacodynamic tests prove that compared with related traditional Chinese medicine prescriptions in the prior art, the traditional Chinese medicine composition can significantly reduce the intima-media thickness of blood vessels, reduce the area proportion of plaques, improve the blood vessel stenosis rate, and improve the curative effect. 0.05 in terms of prolonging thrombosis time, increasing microcirculation blood flow velocity, regulating blood lipid level (reducing total cholesterol, triglyceride and low-density lipoprotein cholesterol and increasing high-density lipoprotein cholesterol), protecting vascular endothelial function (increasing the content of vascular endothelial relaxation factor NO and reducing endothelin ET level) and the like, and the pharmaceutical composition is superior to the prior art group (Plt: 0.05) in terms of prolonging thrombosis time, increasing microcirculation blood flow velocity, regulating blood lipid level (reducing total cholesterol, triglyceride, low-density lipoprotein cholesterol and increasing high-density lipoprotein cholesterol).
Owner:朱子龙

Medicine for treating atherosclerosis caused by high fat diet

The invention discloses a medicine for treating atherosclerosis caused by high fat diet, and belongs to the technical field of cardiovascular disease treatment. According to the pharmaceutical composition, siRNA (small interfering Ribonucleic Acid) capable of inhibiting expression of LncRNA-ENST00000564510.1 in a targeted manner is used as a core active component, and is combined with a delivery system for use. Animal experiments prove that the siRNA injection medicine can remarkably reduce the aortic plaque area of an atherosclerosis model mouse and effectively improve the levels of serum total cholesterol, triglyceride and low-density lipoprotein cholesterol. Meanwhile, the medicine can remarkably inhibit secretion of vascular endothelial cell inflammatory factors induced by ox-LDL, and the cell activity is improved. Therefore, the invention provides a novel therapeutic drug based on lncRNA targeted regulation, and the novel therapeutic drug has an excellent anti-atherosclerosis effect.
Owner:ZHEJIANG HOSPITAL

Dental plaque quantitative analysis system and method and storage medium

The invention relates to the technical field of oral cavity equipment, and discloses a dental plaque quantitative analysis system and method and a storage medium, the system comprises a dental plaque observer and an upper computer, the dental plaque observer is used for collecting a tooth two-dimensional fluorescence image of an oral cavity area of a to-be-detected object, and the upper computer is in communication connection with the dental plaque observer; the upper computer is configured to receive a tooth two-dimensional fluorescence image sent by the dental plaque observer; carrying out image segmentation and image depth estimation based on the tooth two-dimensional fluorescence image, and carrying out three-dimensional reconstruction to obtain a tooth three-dimensional model containing a plaque area and a tooth area; and respectively calculating the surface area of the plaque area and the surface area of the tooth area, solving the area ratio of the surface area of the plaque area to the surface area of the tooth area, and taking the area ratio as a quantitative analysis result of the dental plaque. According to the method, the area of the plaque region can be accurately calculated, and high-precision quantitative detection of the dental plaque is realized.
Owner:XIAMEN ZENITH MEDICAL OPTICS CO LTD

Urban expansion simulation method based on multi-scale fusion of patch and grid rules

The invention provides an urban expansion simulation method based on multi-scale fusion of patch and grid rules, which relates to the field of geographic information science and technology, and comprises: classifying and numbering original land use data, and obtaining an urban expansion patch distribution map after superposition; processing spatial factors with spatial analysis tools to obtain driving variable grid data, and then performing patch average processing and sampling on the driving variable grid data to obtain sample data and patch average driving variable grid data; training with the sample data and the patch average driving variable grid data to construct patch potential rules; in simulation iterations, matrixing the simulated land use grid data, and constructing grid interaction rules with a two-dimensional convolution algorithm; and calculating the probability of patch state transition and constructing patch area rules based on the patch potential rules, the grid interaction rules and the simulated space constraints, and then determining the urban expansion simulation results, thereby effectively improving the simulation accuracy of urban expansion.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Use of nod1 inhibitor ml130 in hypoxia-induced macrophage polarization

This invention relates to the field of cardiovascular disease research technology, and particularly to the application of the NOD1 inhibitor ML130 in hypoxia-induced macrophage polarization, including the use of ML130 in the preparation of drugs that regulate hypoxia-induced macrophage polarization. These drugs inhibit the NOD1 / RIP2 signaling axis and can be used to intervene in the formation and progression of atherosclerotic plaques. This invention creatively combines the NOD1 inhibitor ML130 with the hypoxic microenvironment of atherosclerotic plaques, specifically inhibiting the NOD1 / RIP2 signaling pathway and directly regulating macrophage polarization balance; reducing the accumulation of pro-inflammatory cells in unstable plaque areas, inhibiting foam cell formation and necrotic core expansion, significantly improving plaque stability, and reducing the risk of serious cardiovascular events such as acute coronary syndrome; it clarifies that ML130 exerts its effect by blocking the NOD1 / RIP2-NF-κB / MAPK signaling axis, exhibiting high target specificity and avoiding the side effects of broad-spectrum inhibition by traditional anti-inflammatory drugs.
Owner:THE SECOND HOSPITAL OF DALIAN MEDICAL UNIV

Method for determining porosity of dolomite of grey matter leopard spot and method for predicting dessert reservoir

The invention provides a grey matter leopard spot dolomite porosity determination method and a dessert reservoir prediction method. The porosity determination method comprises the following steps: drilling a dolomite plaque area plunger sample with a preset size; performing CT scanning on the plunger sample according to a preset rule to obtain the area of each scanned layer of pores and the area of a dolomite plaque area; utilizing the area of each layer of pores and the area of the dolomite plaque area to obtain the surface porosity of each layer of dolomite plaque area, and obtaining the total porosity of the dolomite plaque area of the plunger sample; calculating the content of dolomite minerals at the corresponding depth position under the well by using a preset first formula in combination with the obtained logging curve data of the plunger sample; and reversely calculating the porosity of the rock core by utilizing the content of the dolomite at the corresponding underground position and the total porosity of the dolomite plaque area in combination with a preset second formula. The porosity value closer to the real porosity can be obtained, and the situation that different porosity values are obtained due to different sampling positions can be avoided.
Owner:PETROCHINA CO LTD

Application of Osmunda japonica in prevention and treatment of grass carp reovirus in aquaculture animals

The invention belongs to the technical field of aquaculture medicines, and particularly discloses application of rhizoma osmundae in preparation of a medicine for preventing and treating grass carp reovirus (GCRV) infection. The toxicity experiment of Osmunda japonica to grass carp kidney cells (CIK) shows that the maximum non-toxic concentration of the Osmunda japonica aqueous extract to the CIK cells is 1000 [mu] g / mL, after 600-1000 [mu] g / mL of the Osmunda japonica aqueous extract and GCRV are co-incubated for 2 h, the CIK cells are infected, and the formed plaque area is significantly lower than that of a control group, that is, under the cell non-toxic concentration, the Osmunda japonica aqueous extract can significantly kill the GCRV. Therefore, the rhizoma osmundae can be used as a fishery medicine for preventing and treating GCRV infection of aquaculture animals.
Owner:INST OF AQUATIC LIFE ACAD SINICA +1

A preparation for treating atherosclerosis based on negative hydrogen ions combined with stem cells and a preparation method thereof

The application discloses a preparation for treating atherosclerosis based on negative hydrogen ions combined with stem cells and a preparation method thereof, and belongs to the technical field of biomedical engineering, and comprises a stem cell dispersion liquid, a negative hydrogen ion solution and a carrier. The preparation method comprises the following steps: S1, preparation of the stem cell dispersion liquid; S2, preparation of the negative hydrogen ion solution by using a photon energy cleavage technology; S3, preparation of the carrier; S4, preparation of a pre-injection injection; and S5, preparation of the injection. The application uses the negative hydrogen ion combined with the stem cell preparation and constructs the carrier for stably and targetedly delivering the negative hydrogen ions and the stem cells, reduces in-vivo oxidative stress, effectively eliminates inflammatory reactions caused by atherosclerosis, continuously reduces a plaque area, and solves the problem that in the prior art, due to the difficulty in maintaining the stability of the negative hydrogen ions and the stem cells in the delivery process, the negative hydrogen ions and the stem cells cannot be used for synergistically treating atherosclerosis. The application has the potential to be applied to the preparation of a drug for treating atherosclerosis.
Owner:深圳微子医疗有限公司

Method for rapidly constructing mouse atherosclerosis model by using sorafenib

The invention belongs to the technical field of basic medicine scientific research, and particularly relates to a method for rapidly constructing a mouse atherosclerosis model by using sorafenib. According to the method, the original molding period of 12 weeks or longer is shortened to 8 weeks, and the problem of long molding time is successfully solved; in addition, the atherosclerosis mouse model constructed by the method has a very remarkable atherosclerosis effect (the blood fat levels TC, TG and HDL-C are higher); the atherosclerotic aorta plaque area is larger, the blood vessel stenosis is more serious, and foam cells in the aortic valve are increased.
Owner:XIAN MEDICAL UNIV