无菌动物实验告诉我们什么？
What do germ-free animal experiments tell us?
在完全无菌环境中长大的动物缺乏菌群，常出现免疫发育不全和肠道异常，证明微生物组对正常发育不可或缺；这类研究帮助理清菌群的因果作用。
Animals raised germ-free lack a microbiome and often show impaired immune development and gut abnormalities, proving the microbiome is essential for normal development; such studies help establish causal roles.
难度 专业 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#无菌动物 #微生物组
菌群与肥胖和代谢疾病有何关联？
How are microbes linked to obesity and metabolic disease?
一些研究发现肥胖者的菌群组成与瘦者不同，特定菌群可影响能量提取和炎症；但因果复杂，菌群只是众多因素之一，并非“胖瘦开关”。
Some studies link distinct microbiome compositions to obesity, with certain microbes affecting energy harvest and inflammation; but causality is complex, and the microbiome is one factor among many, not a simple on/off switch.
难度 专业 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#菌群 #代谢
菌群代谢产物短链脂肪酸（SCFA）有什么作用？
What do short-chain fatty acids (SCFAs), microbial metabolites, do?
肠道菌群发酵膳食纤维产生短链脂肪酸（如丁酸），可滋养肠道细胞、调节免疫和减轻炎症，并与代谢和脑健康相关。
Gut bacteria ferment fiber into short-chain fatty acids (e.g., butyrate) that nourish colon cells, tune immunity, and reduce inflammation, linking to metabolic and brain health.
难度 专业 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#短链脂肪酸 #纤维
粪便微生物移植（FMT）是什么、治什么？
What is fecal microbiota transplantation (FMT), and what does it treat?
FMT 把健康捐赠者的粪便菌群移植到患者肠道，主要用于复发性艰难梭菌感染，能重建被抗生素破坏的菌群；其他用途仍在研究，且需严格筛查供体。
FMT transfers stool microbes from a healthy donor into a patient's gut, mainly for recurrent Clostridioides difficile infection, restoring flora wrecked by antibiotics; other uses are experimental and donors are rigorously screened.
难度 专业 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#粪菌移植 #微生物组
口腔微生物组与全身健康有关吗？
Is the oral microbiome linked to whole-body health?
口腔是另一个重要微生物栖息地，牙周致病菌可进入血液并与心血管和糖尿病风险相关；保持口腔卫生是全身健康的一环。
The mouth is another key microbial habitat; periodontal pathogens can enter the bloodstream and associate with cardiovascular and diabetes risk, so oral hygiene is part of whole-body health.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#口腔菌群 #全身健康
为什么剖腹产和配方奶可能影响婴儿菌群？
Why might C-section and formula affect an infant's microbiome?
顺产时婴儿接触母亲产道的菌群，母乳含低聚糖喂养有益菌；剖腹产和配方奶会改变早期菌群定植，可能影响日后免疫发育，但个体差异很大。
Vaginal birth exposes infants to maternal birth-canal microbes, and breast milk has oligosaccharides that feed good bacteria; C-section and formula alter early colonization, possibly affecting immune development, though individual variation is large.
难度 进阶 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#婴儿菌群 #分娩
肠道菌群如何影响免疫系统？
How does gut flora influence the immune system?
肠道聚集了人体大部分免疫细胞，菌群通过训练免疫细胞区分敌友、维持肠道屏障，并影响全身炎症水平；菌群失调可能助推过敏和自身免疫。
The gut harbors most of the body's immune cells; microbes train immune cells to tell friend from foe, maintain the gut barrier, and shape systemic inflammation—dysbiosis may fuel allergies and autoimmunity.
难度 进阶 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#菌群 #免疫
抗生素会如何短期改变肠道菌群？
How do antibiotics change the gut microbiome in the short term?
抗生素在杀灭致病菌的同时也会削减有益菌，导致菌群多样性和组成短期失衡，可能引起腹泻；多数人在停药后逐渐恢复，但完全恢复可能较慢。
Antibiotics kill pathogens but also reduce beneficial bacteria, causing a short-term dip in diversity and composition that can lead to diarrhea; most people recover gradually, though full restoration can be slow.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#抗生素 #菌群
“肠-脑轴”是怎样影响情绪的？
How does the gut–brain axis influence mood?
肠道菌群可通过迷走神经、免疫信号和产生的神经递质（如部分血清素）与大脑“对话”，影响情绪和压力反应；这是为何肠道健康常与心情相关。
The gut microbiota “talks” to the brain via the vagus nerve, immune signals, and neuroactive compounds (including some serotonin), influencing mood and stress—explaining the gut–mood link.
难度 进阶 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#肠脑轴 #情绪
益生菌和益生元有什么区别？
What is the difference between probiotics and prebiotics?
益生菌是活的“好细菌”（如某些酸奶中的菌株），益生元是喂养这些细菌的食物（如膳食纤维）。二者都旨在支持肠道菌群，但作用方式不同。
Probiotics are live beneficial bacteria (e.g., some yogurt strains); prebiotics are the fibers that feed them. Both support gut flora but work differently.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#益生菌 #益生元
为什么吃膳食纤维对肠道菌好？
Why is dietary fiber good for gut bacteria?
很多肠道有益菌以膳食纤维为食，发酵后产生有益物质并帮助维持规律排便；这比单纯“补菌”更基础。
Many beneficial gut bacteria feed on dietary fiber, fermenting it into helpful compounds and supporting regular bowel movements—a more fundamental step than simply adding bacteria.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#膳食纤维 #菌群
什么是微生物组？
What is the microbiome?
微生物组是生活在你身体内外（尤其肠道）的细菌、真菌等微生物的集合；它们数量以万亿计，参与消化、免疫和合成某些维生素。
The microbiome is the collection of bacteria, fungi, and other microbes living in and on your body—especially the gut; numbering in the trillions, they aid digestion, immunity, and making some vitamins.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
葛均波 等主编,《内科学》第9版,人民卫生出版社,2018
Ge Junbo et al. eds., Internal Medicine, 9th ed., PMPH, 2018
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787117265416（豆瓣书目条目: 内科学）
#微生物组 #肠道菌