The invention discloses a
probiotic with the depression improving effect and a microecological preparation and application thereof, and is characterized in that the
probiotic comprises
lactobacillus mucus PC17 with the preservation number of CGMCC No.33866, the active ingredients of the
lactobacillus microecological preparation comprise thalli of the
lactobacillus mucus PC17, and a preparation method of the microecological preparation comprises the following steps: adding the lactobacillus
mucus PC17 into the lactobacillus mucus PC17, uniformly mixing the lactobacillus mucus PC17, the lactobacillus mucus PC17, the lactobacillus mucus PC17, the lactobacillus mucus PC17, the lactobacillus mucus PC17, the lactobacillus mucus PC17 and the lactobacillus mucus PC17 The
lactic acid bacteria are inoculated into a
fermentation culture medium according to a volume ratio of 1-5% to prepare the
lactic acid bacteria microecological preparation, can be used for preparing
antidepressant drugs, and has the advantages of being capable of promoting RIN14B cells to secrete 5-hydroxytryptamine and 5-hydroxytryptophan, reducing the levels of
interleukin-1beta,
interleukin-6,
tumor necrosis factor-alpha,
corticosterone and corticotropin in serum, and improving the
antidepressant activity of the
antidepressant drugs. The levels of
aminobutyric acid and brain-derived
neurotrophic factors in serum are improved, and the depression-like behaviors of CUMS
depression model mice are obviously improved.