Umbilical cord blood stem cell injection solution with anti-aging effect and preparation method thereof
An umbilical cord blood stem cell and anti-aging technology, applied in the field of cell biology, can solve problems such as inability to prevent organ aging, and achieve the effects of improving human immunity, improving blood circulation, and strong activity.
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Embodiment 1
[0047] Example 1 Preparation of an umbilical cord blood stem cell injection with anti-aging effect.
[0048] Specifically include the following steps:
[0049] Step 1. Umbilical cord blood screening and storage: screening and collection of umbilical cords from healthy full-term maternal volunteers, placing them in umbilical cord blood storage bags at 4°C, and separating them within 24 hours;
[0050] Step 2. Separation of umbilical cord blood: the umbilical cord blood is removed by two-step centrifugation to remove most of the red blood cells, and the mononuclear cell layer we want is separated. It is cracked twice with high-temperature sterilized ultrapure water to remove the separated red blood cells. And keep the separated plasma.
[0051] Step 3, umbilical cord blood nucleated cryopreservation: collect cells and count and viability (cytometer count), cell count results are shown in Table 1, according to 3 × 10 7 / ml / tube for cryopreservation, using 90% plasma and 10% m...
Embodiment 2
[0063] Example 2 Preparation of a final product of umbilical cord blood stem cell injection with anti-aging effect
[0064] Step 1. Resuscitate the qualified cord blood stem cells in a 37°C water bath for 2 minutes.
[0065] Step 2: Wash twice with clinical injection grade saline,
[0066] Step 3, dissolving 2wt% of human serum albumin and 10-20v% of umbilical cord blood autologous plasma in the compound electrolyte solution,
[0067] Step 4: Cell count and viability were kept at 95%, and the cells were counted according to 5×10 5 ~10×10 5 / ml resuspended in the complex solution of step 3.
[0068] The umbilical cord blood stem cell injection prepared by this method contains the following quantities or concentrations of components:
[0069] Cord blood stem cells: 5×10 5 ~10×10 5 / ml;
[0070] Human albumin: 2wt%;
[0071] Cord blood autologous plasma: 10-20v%;
[0072] Compound electrolyte solution: 78-88v%.
Embodiment 3
[0073] Example 3 : This embodiment relates to the animal experiment of umbilical cord mesenchymal stem cell injection of the present invention infused to aging model rats:
[0074] 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:
[0075] Step 1, establishment of aging model and group comparison experiment
[0076] Take 24 SD rats aged 6-8 weeks, randomly divide 8 into the normal group, and establish the aging model of the remaining 16 rats. 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 120 mg / kg subcutaneously, once a day, for 8 consecutive weeks.
[0077] From the 9th week, the normal gro...
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