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370 results about "Functional activity" patented technology

Functional activity. func·tion·al ac·tiv·i·ty. 1. A task or act that allows one to meet the demands of the environment and daily life. 2. An activity that is essential to support the physical, social, and psychological well-being of a person and allows that person to function in society.

Polypeptide, nucleic acid for coding polypeptide, polypeptide-modified T lymphocyte and application of T lymphocyte

The invention belongs to the technical field of biology, and discloses a polypeptide containing two chimeric antigen receptor structures, nucleic acid for coding the polypeptide, a modified T lymphocyte, and a preparation method and application of the T lymphocyte. The polypeptide provided by the invention contains the two chimeric antigen receptor (CAR) structures, wherein one chimeric antigen receptor structure specifically targets a tumor cell, and the other one specifically targets a normal B lymphocyte, so that a CAR-T cell is effectively amplified through recognizing the B lymphocyte ofa blood circulation system, and more CAR-T cells arrive at a solid tumor part so as to specifically kill the tumor cell for improving a treatment effect on the solid tumor. The polypeptide further comprises an ScFv structure of an anti-PD-L1 monoclonal antibody, and the CAR-T cells can simultaneously secrete a PD-L1 monoclonal antibody which interdicts an immunosuppressive action medicated by a PD1/PDL1 signal pathway and T cell failure, so that the treatment effect on the solid tumor is improved, the functional activity of immune cells in vivo is prolonged at the same time, and finally the tumor recurrence is retarded and even avoided.
Owner:HEBEI SENLANG BIOTECH CO LTD

Method for constructing banks of human dental pulp stem cells

A method for constructing banks of human dental pulp stem cells comprises the steps of acquiring basic information, obtaining dental pulp stem cells, cryopreserving and putting dental pulp stem cells into cell banks and recording and checking information. When the banks of dental pulp stem cells are used, recovery and multiplication culture are carried out in accordance with the actual demands. In the method, the dental pulp stem cells are obtained from dental pulp of waste healthy human teeth and a reserve bank for effective resources is established by using system engineering. A great quantity of dental pulp stem cells with functional activities can be obtained through short-term culture of the human dental pulp stem cells stored in the banks and can be stored for long term without losing the activities. Compared with the prior art, the invention is characterized in that the construction operation specification is simple, easy to grasp, safe and feasible; the bank construction cost is low and the standardization degree is high; and the cells from different age groups adopt different cryopreservation solution so that the activities of the recovered cells are enhanced, thus expanding the sources of the cells and enhancing the activities of the cells. The teeth used in the method are those which are extracted for various reasons and are waste, thus greatly saving the medical resources; therefore, the construction has wide application prospect.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY +1

Peony flower tea with whole flower or whole petal and its preparation method

The invention discloses a peony tea with a whole flower or a whole petals and a preparation method thereof and relates to a preparation method of edible or medicinal dry peony. The invention comprises the steps of flowers picking, flowers cleaning, dry-proof ingredient spraying, drying and sterilization, sorting, directly packaging or packaging by adding other Chinese herbal medicine for storage; according to the weight percentage per kilogram based on the total amount of the peony tea, the healthy peony tea consists of 18-22 percent of whole flowers of dry peony or peony petals, 0-10 percent of candy sugar, 10-14 percent of dry chrysanthemums, 14-20 percent of dry jujube, 8-10 percent of medlar, 16-20 percent of hawthorn, 12-16 percent of canyon straw, 4-6 percent of orange peel. The peony tea is fresh and natural and can regulate menstruation and alleviate pain; the peony is natural in neutral in nature and is beneficial to the human liver and spleen and can regulate functional activities of vital energy, harmonize the liver meridian, activate the spleen, dissipate hygrosis and replenish qi and blood of the source of vital function, thus having the effects of regulating menstruation and alleviating algomenorrhea for women, preventing cancer, benefiting vital energy, strengthening the middle warmer, alleviating pain and detoxifying, etc.
Owner:顾明

Traditional Chinese medicine composite for treating coma and heart syncope symptoms and preparation method thereof

The invention discloses a novel traditional Chinese medicine composite for treating coma and heart syncope symptoms and a preparation method thereof. The traditional Chinese medicine composite mainly comprises the following raw material medicines: styrax, benzoin, holy basil, rhizoma acori graminei, toad venom, tambac, santalwood, rosa banksiae, nutgrass flatsedge, toosendan fruit, radix aristolochiae, common fibraurea, macrostem onion, fructus citri sarcodactylis, citron, aspongopus, lotus node, madder, dalbergia wood, plant soot, rhizoma ligustici wallichii, corydalis tuber, turmeric, curcuma, mastic, myrrh, radix salviae miltiorrhizae, peach kernel, safflower, radix notoginseng, ground beetle, stiff silkworm, logwood, draconis sanguis, catechu, rhizoma sparganii, rhizoma zedoariae, pangolin scales, spatholobus stem, motherwort, angelica, rhizoma atractylodis, radix puerariae, angelica root, sibirian button bur, magnolia flower, purple common perilla, chrysanthemum, baikal skullcap root and coptis root. The traditional Chinese medicine composite can be prepared into any common oral preparation according to a conventional traditional Chinese medicine preparation method. The invention can obviously improve diseases which are caused by the inverse disorder of the functional activities of qi, fluctuation warp and non-smooth qi of yin and yang and represent coma, delirium, exanimation and asphyxia as main symptoms or are accompanied with the symptoms of asphyxia and coldness of limbs, dottiness and the like, and has definite clinical curative effect, obvious curative effect and quick acting. Because the traditional Chinese medicine composite basically adopts medicine-food homologous medicines specified by the national dispensatory for combination, the traditional Chinese medicine composite has the advantages of low expense, no toxic or side effect basically and the like.
Owner:TAIYI HEPU BEIJING RES INST OF TCM

Method for preparing full-thickness skin for toxicity test by stem cell raft type cultivation

InactiveCN101352586AStrong ability to divide and proliferateMorphological integrityArtificial cell constructsVertebrate cellsRaft cultureSerum free media
The invention relates to a method for preparing full-thickness skin used in toxicity testing by adopting stem cell raft culture, which comprises: 1. preparing and modifying a polymeric dermal scaffold; 2. preparing epidermal stem cells from embryonic stem cells and skin tissues; 3. preparing pancreatic islet cells; 4. preparing a special medium for the full-thickness skin; 5. and constructing the full-thickness skin. By utilizing the characteristics of strong differentiation and proliferation capacity of the epidermal stem cell, the skin morphology, organizational structure and functional activity of the constructed full-thickness skin of the invention can meet the demands of sub-chronic toxicity testing; the synthetic scaffold material has high degree of standardization and small batch-to-batch variation; as a serum free medium is adopted through the skin construction process, the factors influencing tissue construction are reduced, thus providing a foundation for the future use in toxicity testing. The all-thickness skin prepared by the method of the invention is closer to a natural skin, the application of which in the mode of toxicity testing and detection index agrees with practical situation better, thus being able to replace animals to be directly applied to the skin toxicity testing of chemicals, cosmetics, medicines and other health-related products.
Owner:程树军 +1
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