Table 1.
Reference | Subjects | Methodological Approach | Main Findings in Gut Microbiota Composition | |
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[67] Biagi et al. 2010 | 84 subjects from Northern Italy (50F, 34M). Young adults (20–40 years old) (Y), elderly (60–80 years old) (E), centenarians group (99–104 years old) (C) and offspring of the centenarians (59–78 years old) (F) | HITChip analysis and qPCR (16S rRNA) | Elderly | Centenarians |
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[58] Claesson et al. 2011 | 161 elderly Irish subjects (82F, 79M) (>65 years old) and a control group (5F, 4M) (28–46 years old) | Pyrosequencing with 454 system (16S rRNA V4 region) |
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|
[72] Wang et al. 2015 | 24 volunteers from China (14F, 10M) classified in Group RC (100–108 years old), Group RE (85–99 years old) and Group CE (80–92 years old) | Illumina MiSeq and qPCR (16S rRNA V4 region) |
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[76] Biagi et al. 2016 | 24 semi-supercentenarians (>105 years old, group S) (18F, 6M) vs. 15 young adults (22–48 years old, group Y) (8F, 7M) from Northern Italy. Results of C and E groups from Biagi et al. 2010 study were incorporated. | Illumina MiSeq and qPCR (16S rRNA V3-V4 region) | Elderly | Centenarians |
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[75] Kong et al. 2016 | 168 Chinese individuals (85F, 83M) grouped into long-living group (≥90 years old), elderly group (65–83 years old) and a younger age group (24–64 years old) | Illumina MiSeq (16S rRNA V3-V4 region) |
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[64] Odamaki et al. 2016 | 367 Japanese volunteers between 0 and 104 years old (210F, 157M) | Illumina MiSeq and qPCR (16S rRNA V3-V4 region) | Elderly | Centenarians |
- |
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[68] Bian et al. 2017 | A total of 1095 healthy Chinese volunteers (533F, 562M) classified into eight groups according to their age (children, adults, elderly, centenarians) | Illumina MiSeq (16S rRNA V4 region) | Elderly | Centenarians |
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[66] Rahayu et al. 2019 | 80 Indonesian subjects (50F, 30M): young group (25–45 years old) and elderly group (≥70 years old) | Yakult intestinal flora-scan (YIF-SCAN) (qPCR method) |
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[73] Wang et al. 2019 | 187 elderly subjects from three groups of age (65–70 years old), (90–99 years old) and (100+ years old) from East China (120F, 67M) | Illumina MiSeq (16S rRNA V3, V4 and V5 regions) | Elderly | Centenarians |
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[74] Kim et al. 2019 | 56 South Korea subjects classified in centenarians (95–108 years old) (27F, 3M), elderly (67–79 years old) (7F, 10M) and adults (26–43 years old) (3F, 6M) | Pyrosequencing with 454 system (16S rRNA V1–V3 regions) | Elderly | Centenarians |
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|
F: female; M: male. Changes (↑: increase; ↓: decrease) in the relative abundance of selected microbial taxa and in bacterial diversity with age. Names in bold denote each group for the corresponding study and are defined in the table.