Overview of the excreta:
The excretion of the body is a live cell, consisting of complex rnas and proteins, with a diameter of 30-150 nm small cysts with membrane structure, and now refers specifically to a plate cyste of 40-100 nm diameter, which originates mainly from a multi-cystic cystic bubble formed by a fall in the inside of the cytological solute particles, and is released to the extramural cysts by mixing with the multi-cyste and cell membrane. All cultured cell types can be excreted and naturally present in body fluids, including blood, saliva, urine, brain vertebrate and milk。
Figure
Surgical composition:
The excrete is rich in cholesterol and phosphorus and carries dna, mrna, microrna, proteins, lipids and some metabolites. 41860 proteins, 2838 micrornas and 3408 mrnas have been found in 286 studies。
Survivor function:
1) interfering signal transfer and molecular transfer. As multiple signal particles, each excrete is capable of transmitting multiple combinations of signals through the participation and accumulation of cell surface receptors, and this activity has been shown to apply to proteins involved in growth factors, cell factors, wnt and notch pathways. In addition, the integration of the excretion and target cells has the capacity to transmit functional receptors to target cells, and in some cases even activate receptors and effects; 2) human reproduction, pregnancy and embryonic development require accurate, fine and dynamic inter-cell communication. The source of breast milk has the function of regulating the foetal immune system. In breast milk, the excretion not only contributes to the health and growth of the post-partum foetus, but also the presence of immuno-related mirnas in the human breast milk source and the increase in the number of t-regulated cells from external sources of blood, which may regulate immuno-resistance; 3) regulate immunization. The supply cells of the excrete are of a variety of sources, such as tree stun cells, antigen transfer cells and even immunosuppressive cells, and the same cells have different physiology functions that contribute to immune response and immunosuppression; 4) endocrine bodies and diseases. Surgical bodies may play a role in the emergence of metabolic diseases and cardiovascular health, have been found to transfer metabolic products and to facilitate intercellular communication through the exchange of genusb cells, fatty tissues, musculoskeletal muscles and the liver between mice and humans; they can be involved in the removal of false folding proteins, thus acting as antidotes and neuroprotective functions, thus playing a role in degenerative diseases; and they are making rapid progress in cancer research compared to studies of the role of the excrete in other diseases, and they affect tumour formation, tumour growth and transfer, sub-tumour syndrome and resistance to treatment。
Survivors and viral infections
Clinical applications of the excretion:
1) diagnosis of diseases. The presence of the excretion in all biological liquids makes them attractive as micro-creative liquid tests and allows for vertical sampling to track the progress of the disease. Focused diseases of the excretion diagnostic application include cardiovascular diseases, diseases and cancers affecting the central nervous system (cns); 2) institutional preparedness. In contrast to lipids, the excretion has good tolerance and can deliver functional drugs with a minimal immuno-preventive rate in mice
3) the role of treatment. Interfilled stem cell-derived excretion bodies can play a therapeutic role and applications in treating patients with transvestites against host diseases indicate that repeated injections are good tolerance and do not produce significant side effects。
Sample preparation in excreta studies:
Type of sample in excreta studies
The samples from the excretion studies relate to blood, urine, milk, saliva, brain vertebrate fluid and cell culture, with the overall principle of cell removal, fresh samples and cryogenic preservation (-80°c)。
Excretion and purification of the excrete in cell culture:
Reagents required: serum of impregnated fetals, reagent cartridges for cell excretion, serobics/serobics for excretion (with growth factors)
1) the selection of a good cytogeneity by replacing it with a serobic culturer or a serum containing no excretion, at about 60% cell condensation, and by continuing to develop 48h and collecting cell-inventory liquids; 2) the effective removal of cell residues with a centrifugal strength of about 800-1000g and subsequent removal of cell fragments by 3000g centrifugal 10min and transfer of the centrifugal liquid from cell fragments to a new 50ml centrifugal tube; 3) the insertion of exosome coNcentration solution, 20ml liquids added to 5 ml ecs reagents; 4) circulation of centrifugal tubes after incorporation into ecs reagents, mixing 1 min through vortex oscillators, and placement at least 2h at 4°c static; (addition of static time may increase the yield of the excretion, but may not exceed 24h) 5) removal of the centrifugal tube containing the mixture at 4°c at 4000g centimetre centrifugal, discarding up to up to up to up to up to 5ml ca
9) preservation of the excretion: purified excretion is stored in 50-100 ml in low temperature refrigerators at -80°c for subsequent experimental use, excretion is kept at 2x, capable of keeping the excretion under 4°c conditions for at least six months, applicable to liquid and dry forms, and can effectively reduce the adverse effects of the frozen excrete。
Note:
1) when harvesting cells, as far as possible, no more than 5% of dead cells are guaranteed because of the decay of dead cells and the consequent contamination of the active cells; 2) if co-cubation or animal experiments are to be carried out at a later stage, the extraction of the excrete is required to remove the fungus from the filtrate of 2um; 3) the earlier the samples are processed, the longer the cells are placed, the cell rupture is contained, the release of the cyst will also cause contamination of the ostrich produced by the active cells; 4) these bases of culture cannot be used to replace the serum or the impreventable culture of the human body, and in these conditions, the cells are hungry, they will consume all the nutrients in the culture base, and the amount of the excretion in the liquid at this time will be significantly reduced。
