551 results about "Brain vessel" patented technology

An implantable medical device is provided for the suppression or prevention of pain, movement disorders, epilepsy, cerebrovascular diseases, autoimmune diseases, sleep disorders, autonomic disorders, abnormal metabolic states, disorders of the muscular system, and neuropsychiatric disorders in a patient. The implantable medical device can be a neurostimulator configured to be implanted on or near a cranial nerve to treat headache or other neurological disorders. One aspect of the implantable medical device is that it includes an electronics enclosure, a substrate integral to the electronics enclosure, and a monolithic feed-through integral to the electronics enclosure and the substrate. In some embodiments, the implantable medical device can include a fixation apparatus for attaching the device to a patient.

This invention provides use of a SARM compound or a composition comprising the same in treating a variety of diseases or conditions in a subject, including, inter-alia, a diabetes disease, and/or disorder such as cardiovascular disease, atherosclerosis, cerebrovascular conditions, diabetic nephropathy, diabetic neuropathy and diabetic retinopathy.

An intracellular calcium concentration increase inhibitor containing as the active ingredient (1) a boron compound represented by the formula (I).

The compound represented by the formula (I) inhibits the increase of the intracellular calcium concentration, and therefore it is deemed to be useful as an agent for the prophylaxis and/or treatment of platelet aggregation, ischemic diseases in hearts and brains, immune deficiency diseases, allorgosis, bronchial asthma, hypertension, cerebrovascular spasm, various renal diseases, pancreatitis, Alzheimer's disease, etc.

The composition of Chinese patent medicine for curing cardio-cerebral vascular diseases comprises (wt%) 82-87% of bran and coarse grain, 13-18% of plant medicinal material for curing cerebrovascular disease and microscale of saccharifying enzyme and lactobacillin, which is characterized by that the composition of said plant medicinal material comprises (wt%) 28-37% of main medicinal material, 23-30% of secondary medicinal materials, 27-41% of auxiliary medicinal material and 5-7% of flavouring material, and its preparation method includes the following steps: selecting materials, pulverizing,mixing, steaming, cooling, inoculating, showering, sterilizing, filtering, inspection, packaging and putting in storage.

Methods of treating metabolic diseases and disorders using a FGF21 polypeptide are provided. In various embodiments the metabolic disease or disorder is type 1 diabetes, obesity, dyslipidemia, elevated glucose levels, elevated insulin levels, diabetic nephropathy, neuropathy, retinopathy, ischemic heart disease, peripheral vascular disease and cerebrovascular disease

The present invention relates generally to a method for computer-aided quantitative diagnosis of cerebrovascular and neurodegenerative diseases (such as Alzheimer's, vascular dementia, mild cognitive impairment, transient ischemia, stroke etc.) via a vasomotor reactivity index (VMRI) which is computed on the basis of a computational model of the dynamic nonlinear inter-relationships between beat-to-beat time-series measurements of cerebral blood flow velocity, arterial blood pressure and end-tidal CO2. This model is obtained by means of a method pioneered by the inventors and may incorporate additional physiological measurements from human subjects. Its purpose is to provide useful information to physicians involved in the diagnosis and treatment of cerebrovascular and neurodegenerative diseases with a significant neurovascular component by offering quantitative means of assessment of the effects of the disease or medication on cerebral vasomotor reactivity. Initial results from clinical data have corroborated the diagnostic potential of this approach.

A pharmaceutical composition comprising at least one of components (a) and at least one of components (b) shown in below: (a) a compound represented by the general formula (I) (wherein R1 represents a hydrogen atom or a hydroxyl group) or an acid addition salt or hydrate thereof; and (b) an ameliorant of cerebral circulation, a vasodilator, a cerebral protecting drug, an brain metabolic stimulants, an anticoagulant, an antiplatelet drug, a thrombolytic drug, an amelirant of psychiatric symptom, a antihypertensive drug, an antianginal drug, a diuretic, a cardiotonic, an antiarrhythmic drug, an antihyperlipidemic drug, an immunosuppressant, or a pharmaceutically acceptable salt (except the components shown in (a)). It is useful as a preventive or remedy for cerebrovascular disorders and cardiac diseases.

The invention provides a synthetic polypeptide of Formula I′ (SEQ ID NO: 1):

X1-X2-X3-R—X5-X6-X7-X8-X9-X10-X11-X12-X13  I

• • or an amide, an ester or a salt thereof, wherein X1, X2, X3, X5, X6, X7, X8, X9, X10, X11, X12 and X13 are defined herein. The polypeptides are agonist of the APJ receptor. The invention also relates to a method for manufacturing the polypeptides of the invention, and its therapeutic uses such as treatment or prevention of acute decompensated heart failure (ADHF), chronic heart failure, pulmonary hypertension, atrial fibrillation, Brugada syndrome, ventricular tachycardia, atherosclerosis, hypertension, restenosis, ischemic cardiovascular diseases, cardiomyopathy, cardiac fibrosis, arrhythmia, water retention, diabetes (including gestational diabetes), obesity, peripheral arterial disease, cerebrovascular accidents, transient ischemic attacks, traumatic brain injuries, amyotrophic lateral sclerosis, burn injuries (including sunburn) and preeclampsia. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.

Provided are compounds which are an NMDA antagonist having a broad safety margin and are useful as a treating agent or a preventing agent for Alzheimer's disease, cerebrovascular dementia, Parkinson's disease, ischemic apoplexy, pain, etc. Concretely provided are an amine derivative or its salt characterized in that the amine-containing structure A therein bonds to a 2- or 3-cyclic condensed ring (e.g., indane, tetralone, 4,5,6,7-tetrahydrobenzothiophene, 4,5,6,7-tetrahydrobenzofuran, 7,8-dihydro-6H-indeno[4,5-b]furan, 2,3-dihydro-1H-cyclopenta[1]naphthalene) via X¹ (bond or lower alkylene); and an NMDA antagonist containing it as an active ingredient thereof.

The invention belongs to the technical field of biological engineering, and relates to an NGF-Fc fusion protein and a preparation method thereof. The method comprises the following steps: constructing a human immune globulin IgG Fc and nerve growth factor (NGF) fusion gene expression vector through a genetic engineering means, transferring to a mammal cell to make the transferred mammal cell highly express and produce NGF-Fc fusion proteins, purifying, identifying and carrying out biological activity detection. The expression vector transferred mammal cell constructed in the invention can express bioactive NGF-Fc fusion proteins, so the expression level can be 150mg/L or above, and the obtained protein has good stability and long half life, and can be used to prepare drugs for treating Alzheimer's disease, diabetic peripheral neuropathy, Parkinson's disease, facial neuritis, craniocerebral trauma, trauma of spinal cord, acute cerebrovascular disease, encephalatrophy and other neurological diseases, and peripheral nerve injury acute cerebral vascular central nerve injuries induced by chemical drugs.

The present invention discloses one kind of stem cell preparation for treating tissue ischemia disease and its preparation process. The stem cell preparation includes mononuclear cell separated and extracted form peripheral blood, CD 133+ cell separated and extracted from other body's tissue, or vascular endothelial ancestral cell derived from CD133+cell. The preparation process includes separation and purification of stem cell, culture, preparation of cell suspension and other steps. The positive effect of the present invention is that the stem cell preparation has high curative effect and no toxic side effect to obliterative cardiac, cerebral and peripheral vascular and corresponding genetic defective diseases.

A system for processing a medical image for personalized brain disease diagnosis and status determination, includes: an image processing unit, which obtains a 3D T1 weighted image, a 2D T2 fluid attenuated inversion recovery (FLAIR) image, a magnetic resonance angiogram (MRA) image, which images only a vessel for checking abnormality of a brain vessel, and a 4D phase-contrast flow image for recognizing a state of a blood flow in a vessel; a complex image analyzing unit, which selects a disease-to-be-diagnosed, sets a brain area according to the selected disease, and analyzes brain tissue and a brain vessel; and a personalized diagnosis and result output unit, which outputs a brain state, a disease-specific risk degree, a risk of disease, and a disease prediction result through a machine learning algorithm by utilizing an age-specific data DB.

The invention discloses a moringa calcium total nutrient and a preparation method thereof. The invention has the core that biomass enzymatic hydrolysis, nanometer dual wall breaking and the whole-course low-temperature extraction new technology are adopted. The moringa calcium total nutrient comprises the following components in percentage by weight: 50-70% of moringa leaf, 10-30% of moringa seed, 10-20% of moringa root and 5-10% of stevia rebaudiana. In the preparation process, the whole-course constant low-temperature ethyl alcohol extraction and the neutral protease, cellulose and pectinase enzymolysis wall breaking technology are adopted, the new technology of distilled water repeated pressure reduction and repeated recycling extraction is adopted, and the effective nutrition ingredient and the bioactivity of the natural original ecology moringa are prevented from being damaged by high temperature and chemical solvent; the new technology of nanometer physics wall breaking and nanometer tower spray drying is adopted to obtain the moringa powder of 100-200 nanometers; the effective ingredient activity of the moringa can be directly adsorbed by the human body tissue cell; the bioavailability of the moringa calcium total nutrient ingredient by the human body can be effectively improved; the moringa calcium total nutrient is suitable for the children growth period, middle and old age calcium supplement and the effective conditioning of people suffering from hyperglycemia, hyperlipidemia, hypertension, heart and cerebral vessel diseases and tumor as well as the sub-health crowd.

It relates to an endogenous repair factor production accelerator which comprises one or at least two selected from prostaglandin (PG) I2 agonist, EP2 agonist and EP4 agonist. Since prostaglandin (PG) I2 agonist, EP2 agonist or EP4 agonist has various endogenous repair factor production accelerating action, angiogenesis acceleration action and stem cell differentiation induction action, it is useful as preventive and/or therapeutic agents for ischemic organ diseases (e.g., arteriosclerosis obliterans, Buerger disease, Raynaud disease, myocardial infarction, angina pectoris, diabetic neuropathy, spinal canal stenosis, cerebrovascular accidents, cerebral infarction, pulmonary hypertension, bone fracture, Alzheimer disease, etc.) and various cell and organ diseases.

A pyrazine derivative of the following formula (I): or a salt thereof. The pyrazine compound (I) and a salt thereof of the present invention are adenosine antagonists and are useful for the prevention and/or treatment of depression, dementia (e.g. Alzheimer's disease, cerebrovascular dementia, dementia accompanying Parkinson's, disease, etc.), Parkinson's disease, anxiety, pain, cerebrovascular disease (e.g. stroke), etc.), heart failure and the like.

The invention relates to extracting tanshinpropanone from the effective part of the root of red-rooted salvia and preparation thereof and application of medicinal compound from said extracting stuff in preparation of drugs for treatment and prevention for blood shortage disease of heart and brain. Process for tanshinpropanone is as follows, extracting tanshinone type compound by supercritical extracting technique of carbon dioxide, boiling with water and extracting soluble salvianolic acid type and purifying thereof through ethyl acetate, thereafter mixing these two solid powder obtained according to extracting rate and content converting.

The invention discloses a digital X-ray image contrast enhancement processing method, and belongs to the technical field of medical instruments. The digital X-ray image contrast enhancement processing method is characterized by comprising the following steps: according to X-ray imaging characteristics, dynamically expanding an interesting human body area image, and dynamically compressing non-human body image information, thereby effectively increasing the contrast of interesting area images; implementing detail enhancement and multi-scale contrast resolution enhancement on images adjusted within a dynamic range, and adjusting the naked eye watching effect of acquired images, thereby completely displaying human body information to a diagnosis doctor. The digital X-ray image contrast enhancement processing method has the advantages that human body image details are conspicuously highlighted, all information of the images can be watched in the same window, lung marking, lung marking tail end renal vessels, bone marking, muscle levels, brain vessels and the like can be all clearly displayed, and the diagnosis skill level can be greatly improved. In addition, on the basis of airspace image processing, the method is high in processing speed and can be applied to a dynamic image processing system.

The invention discloses a preparation method of extract of effective part of Clinopodium chinense (Benth.) O. Kuntze for preventing and treating diabetes and an application thereof. The extract of the effective part is prepared from Clinopodium chinense (Benth.) O. Kuntze as a raw material, a concentrate is obtained by pulverizing, ethanol extraction and reduced pressure recovery, the concentrate is extracted by petroleum ether and ethyl acetate, and the obtained ethyl acetate extract is purified by macroporous resin. The extract of the effective part mainly comprises total flavone and terpenoids, and has obvious effects of reducing blood sugar of rats with streptozotocin diabetes, reducing the content of serum cholesterol, protecting the islet cells, inhibiting the activity of alpha-glucosidase, and protecting the vascular endothelial cells. Thus, the extract of the effective part of Clinopodium chinense (Benth.) O. Kuntze has favorable functions for reducing blood sugar, reducing blood fat, and protecting the islet cells and the vascular endothelial cells, and can be used for preventing and treating diabetes, dyslipidemia induced by diabetes and diabetic cardiovascular and cerebrovascular complications.

The invention provides a drug composition containing gamma-aminobutyric acid and chitosan oligosaccharide; the dosage form of a drug can be any pharmaceutically acceptable drug dosage form; the gamma-aminobutyric acid and the chitosan oligosaccharide are combined according to the weight ratio of (0.1 to 5):1. The invention further provides a preparation method of the composition, and applications of the composition to preparation of a drug for reducing blood pressure, protecting heart and cerebral vessels or treating cardiovascular and cerebrovascular diseases.

An alkyl ether derivative represented by the formula:

wherein R¹, R², R³, R⁴, m and n are as defined in the specification, or salts thereof exhibits synergistically improved anti-hypoxic activity when combined with a compound having an acetylcholine esterase inhibitory activity. Therefore, the combination according to the present invention is useful as a method for improving cerebral function. Further, a pharmaceutical composition containing the compound relating to the combination according to the present invention is useful for treatment and prevention of dysfunction of cerebral acetylcholine neurons in the sequelae of cerebrovascular dementia, senile dementia, Alzheimer's disease and ischemic cerebral lesion and in the cerebral apoplexy or the memory impairment caused by selective neuronal death.

The invention provides a herba epimedii extract, in particular to a high-content herba epimedii total flavonoids extract, and the preparation method thereof mainly comprises the following steps: (1) alkali-ethanol-water is taken as a menstruum for refluxing extraction; (2) decompression and concentration are carried out; (3) pH value is adjusted; (4) macroporous resin column elution is carried out; and (5) an eluant is dried and the content of the obtained total flavonoids is over 65 percent and the content of icariin is over 20 percent. The extract can be prepared into various oral preparations according to the requirements in pharmacy, which can be hard capsules, soft capsules, conventional tablets, orally disintegrating tablets, buccal tablets, dispersible tablets, sustained-release preparations, controlled release preparations, granules, water-paste pills, dripping pills, honeyed pills, and the like. The extract and effective medicines containing the extract can be applied to preparing brain tissue protective agents, especially to preparing medicines that prevent and treat cerebral infarction, cerebral infarction sequela and other ischemic cerebrovascular diseases.

The invention relates to the use of pepper amide compound in preparation of drug or healthcare product for reducing blood fat with the general formula (I), wherein R, R1, R2 are defined in the specification, the piperamide compounds represented by formula (1) have the actions of substantially reducing cholesterin, triglyceride and increasing high density lipoprotein, fully activating lecithin cholesterol acyl transferase, forwarding extra-hepatic tissue cholesterol to liver, cleaning out plasma lipoproteins, plasma cholesterol and cholesterol esters, thus can be applied to the prevention and treatment of cardiovascular and cerebrovascular diseases, such as atherosclerotic, cerebrovascular, coronary artery and peribiliary vessel pathology and hyperlipemia.

The invention discloses a cerebrovascular image segmentation method based on a multi-attention dense connection generative adversarial network. The network structure mainly comprises three parts: 1, asegmentation generation network S: based on a U-shaped structure, image feature information is reserved to the maximum extent in a contraction path by using a densely connected convolution layer so as to accurately segment a blood vessel detail contour, and discrimination features are highlighted by using an attention module in an expansion path so as to alleviate confusion of similar regions during segmentation; 2, a segmentation discrimination network D: standard real segmentation is introduced as a condition, a foreground cerebrovascular region is ninput to a densely connected convolutionlayer under the shielding of a segmentation image, and concentrating is carried out on extracting of cerebrovascular region features to distinguish generate segment and truly segment; and 3, deep enhancement of an adversarial loss function: employing deep supervision: a Wasserstein distance adversarial loss, a generative network, an error attention type weighted cross entropy loss are used to focuse on solving a class imbalance problem and reducing a segmentation error. The method can be widely applied to computer-aided diagnosis, treatment and the like of cerebrovascular diseases.