2results about How to "Avoid rapid aging" patented technology

The application discloses an exosome preparation for treating hypofunction of ovary and a preparation method and application thereof, and belongs to the technical field of biological medicine, and particularly relates to a preparation method of an exosome preparation for treating hypofunction of ovary, which comprises the following steps: taking perinatal stem cells, subculturing, obtaining domesticated perinatal stem cells, digesting, expanding and culturing to a density of 80%-85%, adding a culture medium for culturing, collecting supernatant, collecting supernatant for 3 times, combining, filtering through a 0.45 mu m PES filter membrane first, and then concentrating to obtain a concentrated solution; centrifuging, resuspending a precipitate, purifying through a density gradient, obtaining an exosome precipitate, and suspending the exosome precipitate in a cryopreservation protective solution to obtain the exosome preparation. The application provides the exosome preparation for treating hypofunction of ovary and the preparation method and application thereof, a safe, sufficient, high-purity and stable exosome preparation is prepared, and the stem cell exosome for treating hypofunction of ovary is provided.

This utility model provides a portable spraying device, including a housing with a first through hole fixedly connected to a nozzle; a second through hole fixedly connected to a water quick connector; and a receiving chamber connected to the nozzle and water quick connector. Tap water enters the receiving chamber through the water quick connector and is then atomized and sprayed out through the nozzle. A convenient installation structure is also provided on the exterior of the housing, separate from the receiving chamber. This portable spraying device offers multiple installation methods, including magnetic adsorption, protrusion suspension, and rod-like attachment, facilitating installation in various indoor and outdoor applications. Installation and disassembly are quick and easy, suitable for temporary or seasonal use in different situations. Furthermore, this portable spraying device is small in size, occupies little space, and is easy to store.