Umbilical cord mesenchymal stem cell injection with anti-aging function and preparation method thereof
A stem cell and anti-aging technology, applied in the field of cell biology, can solve the problems of organ aging that cannot be prevented, and achieve the effects of improving human immunity, improving blood circulation, and strong activity
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Embodiment 1
[0050] This embodiment provides a method for extracting umbilical cord mesenchymal stem cells, which specifically includes the following steps:
[0051] Step 1. Screening and preservation of umbilical cords: screening and collecting umbilical cords of healthy full-term maternal volunteers, placing them in umbilical cord preservation solution at 4°C, and separating them within 24 hours; the umbilical cord preservation solution is a serum-free medium, without Contain antibiotics; the detection items of the screening include carrying virus, genetic family history, etc.; the viruses such as hepatitis B, hepatitis C, AIDS, syphilis, etc.;
[0052] At the same time, a tube of maternal blood was collected for re-examination. The re-examination items were viral immunological detection and genetic detection of hepatitis B, hepatitis C, AIDS, and syphilis.
[0053] Step 2. Separation of the umbilical cord: transfer the umbilical cord to a Petri dish and wash it with normal saline; remov...
Embodiment 2
[0060] This implementation provides a method for preparing an umbilical cord mesenchymal stem cell injection with anti-aging effects, which specifically includes the following steps:
[0061] Step 1. Resuscitate the qualified umbilical cord mesenchymal stem cells in a 37°C water bath for 2 minutes;
[0062] Step 2. Wash twice with clinical injection grade saline;
[0063] Step 3, dissolving 2wt% human serum albumin in the compound electrolyte solution;
[0064] Step 4, cell counting, maintain 95% viability, press 5×10 5 ~10×10 5 / ml resuspended in the complex solution of step 3.
[0065] The umbilical cord mesenchymal stem cell injection prepared by this method contains the following quantities or concentrations of components:
[0066] Umbilical cord mesenchymal stem cells: 5×10 5 ~10×10 5 / ml;
[0067] Human albumin: 2wt%;
[0068] Compound electrolyte solution: 98wt%.
Embodiment 3
[0070] This example relates to the animal experiment of the umbilical cord mesenchymal stem cell injection of the present invention infused into aging model rats:
[0071] Determination of anti-aging indicators includes: 1. Appearance characteristics: body weight, coat color, action, and activity; 2. Biochemical indicators: activity of superoxide dismutase (SOD), content of malondialdehyde (MDA), thymus and spleen IL-2, IL-10 content, liver and kidney ratio. Specific steps are as follows:
[0072] Step 1, aging model establishment and group comparison experiment;
[0073] Twenty-four SD rats aged 6-8 weeks were selected, and 8 were randomly divided into the normal group, and the aging model was established with the remaining 16 rats. The 8 rats in the normal group were subcutaneously injected with normal saline, once a day, for 8 consecutive weeks; the other 16 rats were injected with D-galactose 120mg / kg subcutaneously, once a day, for 8 consecutive weeks;
[0074] From th...
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