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               ·530 ·                            南 京    医 科 大 学 学         报                        2025年4月


               Protein families:signaling and cellular processes                                       Group
                            Protein families:metabolism                               Brite hierarchies  Control
                Protein families:genetic information processing                                          Burn
                              Transport and catabolism
                          Cellular community⁃prokaryotes
                          Cellular community⁃eukaryotes                              Cellular processes
                                      Cell motility
                                Cell growth and death
                       Signaling molecules and interaction
                                                                                   Environmental information
                                  Signal transduction
                                 Membrane transport                                     processing
                                       Translation
                                     Transcription                                   Genetic information
                                Replication and repair                                  processing
                               Substance dependence
                             Neurodegenerative disease
                               Infectious disease:viral
                            Infectious disease:parasitic
                            Infectious disease:bacterial
                                    Immune disease
                         Endocrine and metabolic disease                              Human diseases
                          Drug resistance:antineoplastic
                           Drug resistance:antimicrobial
                               Cardiovascular disease
                KEGG pathway  Xenobiotics biodegradation and metabolism
                                Cancer:specific types
                                   Cancer:overview
                               Nucleotide metabolism
                           Not included in regular maps
                    Metabolism of terpenoids and polyketides
                         Metabolism of other amino acids
                       Metabolism of cofactors and vitamins                             Metabolism
                                   Lipid metabolism
                       Glycan biosynthesis and metabolism
                                  Energy metabolism
                              Carbohydrate metabolism
                  Biosynthesis of other secondary metabolism
                               Amino acid metabolism
                 Unclassified:signaling and cellular processes
                              Unclassified:metabolism
                  Unclassified:genetic information processing                    Not included in pathway or brite
                                 Poorly characterized
                                    Nervous system
                                    Immune system
                                   Excretory system
                              Environmental adaptation
                                   Endocrine system                                  Organismal systems
                                   Digestive system
                           Development and regeneration
                                  Circulatory system
                                          Aging
                                                0       10        20       30
                                                      Relative abundance(%)
                                                 图7 KEGG功能相对丰度条形图
                                  Figure 7 Bar chart of relative abundance of KEGG functional categories


              性,菌种间的相互作用以协同作用为主(图 8)。在                          相关性的菌属有11类,其中4类呈正相关,7类呈负
              具有相关性的菌属中,厚壁菌门下的菌属与其他门                            相关;与Romboutsia 属具有相关性的菌属共有9种,
              类的菌属具有最大的相关性。相关性网络节点数                             其中 3 类呈负相关,7 类呈正相关;与罗斯氏菌属具
              最多的属包括高氏瘤胃球菌属([Ruminococcus]                      有相关性的菌属共有 7 类,其中 4 类呈正相关,3 类
              gauvreauii group)、无毒梭菌属、普雷沃氏菌属、Rom⁃               呈负相关。
              boutsia 属、罗斯氏菌属(Rothia)以及霍尔德曼氏菌
                                                                3 讨     论
              属。其中,与高氏瘤胃球菌属具有相关性的菌属共
              有 8 类,乏氧菌属与其呈负相关,其余 7 种呈正相                             随着老龄化加速,50岁及以上烧伤患者比例逐
              关;与无毒梭菌属具有相关性的菌属共有 11 类,其                         年上升   [12] ,给烧伤中心带来严峻挑战          [13] 。肠道微生
              中呈正相关的菌属有6类,呈负相关的菌属有5类;                           态是维持肠道屏障功能的重要系统                 [14-15] 。然而,严
              与普雷沃氏菌属具有相关性的菌属共有 9 类,其中                          重烧伤引发的应激反应破坏了肠道微环境稳态,导
              琼脂杆菌属与其呈正相关;与霍尔德曼氏菌属具有                            致微生物群类型、数量及分布异常,细菌易位至肠
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