乳酸杆菌Gasseri KS-13,双歧杆菌Bifidum G9-1和Bifidobacterium longum MM-2摄入诱导炎症细胞因子较少,并且在老年人
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j nutr中的肠道微生物群的潜在利益转移。 2015; 34(6):459-69。 EPUB 2015年4月24日。PMID: 25909149 25909149 Carmelo Nieves, Maria Ukhanova, Volker Mai, Susan S Percival, Mary C Christman, Bobbi Langkamp-Henken
Article Affiliation:Samuel J Spaiser
Abstract:OBJECTIVE: This study determined whether older adults who consumed a probiotic mixture would具有较大比例的循环CD4+淋巴细胞,改变的细胞因子产生以及肠道微生物群向更健康的微生物群落转移。
METHODS: Participants (70± 1 years [mean ± SEM]; n = 32) consumed a probiotic (Lactobacillus gasseri KS-13, Bifidobacterium bifidum G9-1, and Bifidobacterium longum MM2) or a placebo twice daily for 3 weeks with a 5-week washout period between intervention periods. Blood and stools were collected before and每次干预后,都测量了循环CD4+淋巴细胞的百分比和在粪便中刺激的细胞因子的生产。 在交叉的第一阶段,CD4+细胞的百分比随安慰剂的降低(48%±3%至31%至31%±3%,p <0.01),但随着益生菌(44%±3%至42%至42%±3%)的变化而变化(42%至42%±3%),对原木浓度的pR <3.2 to 3.2 to 3.2 to 3.1.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.7±0.201),但不安慰剂(1.7±0.2至2.1±0.2)。使用益生菌与安慰剂,较高的参与者比例增加了粪便双歧杆菌(48%对30%,p <0.05)和乳酸菌细菌(55%对43%,P <0.05),而Escherichia coli(52%vers 27%,P <0.05,P <0.05)。 Several bacterial groups matching Faeacalibactierium prausnitzii were more prevalent in stool samples with the probiotic versus placebo.
CONCLUSIONS: The probiotic maintained CD4+ lymphocytes and produced a less inflammatory cytokine profile possibly due to the changes in微生物群落更像是在健康的年轻人群中报告的微生物。