A probiotic composition for post-gastrectomy treatment and preparation method thereof
A composition and probiotic technology, applied in the field of microorganisms, can solve the problems of difficult to achieve inflammation treatment effect, complicated production and preparation, and untargeted target
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experiment example 1
[0115] Basic experiment example 1: Screening of intestinal probiotics in cancer-free villages
[0116] (1) Feces collection, processing and intestinal microbial isolation and screening (all volunteers’ written consent was obtained before collection)
[0117] The first morning fecal samples were collected from healthy volunteers in Wuyuan Cancer-free Village (healthy people with normal diet and no cancer), patients with gastric cancer and patients with gastrectomy for gastric cancer (the Second Affiliated Hospital of Nanchang University) (without taking antibiotics within three months, non- Vegetarians), immediately transferred to a sealed anaerobic plastic bag (85% N 2 , 5%H 2 , 10% CO 2 ) placed for one hour, then weighed 10g of feces samples into a 10mL centrifuge tube with built-in sterilized glycerin, the glycerin content was 10% of the sample, and sealed the centrifuge tube mouth with sealing glue (the above operations were completed in the anaerobic bag). Quickly stor...
Embodiment 1
[0140] Example 1 Animal experiments evaluating the effects of probiotic compound preparations on intestinal inflammation and intestinal barrier after gastric cancer surgery in rats
[0141] (1) Animal experiment grouping, modeling and specimen collection
[0142] 1) Animal grouping: 48 SPF male SD rats, aged 6-7w, with a body weight of 140-180g, were randomly divided into 4 groups: control group (group C), model group (group M), low-concentration probiotic treatment group (LT group), high-concentration probiotics treatment group (HT group), 12 rats in each group.
[0143] 2) Model construction:
[0144] ①Gastric cancer model construction:
[0145] Except for the routine feeding of the blank control group, the rats in other groups drank freely with N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) solution, wherein the concentration of MNNG was 150 μg / mL; 2% water Gastrointestinal administration of sodium salicylate solution 1 time / day, 2 mL / time, or 1 time / day, 0.5 mL / time at 55°...
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