上篇和中篇，我们看到，身体的恢复先要守住细胞内部的信息与结构，再完成清理和供能。但这些环节即使各自启动，也不等于整个人已经恢复。伤口可以闭合，肌力却还没回来；炎症指标可以下降，睡眠、食欲和注意力仍未同步。到了恢复的后半程，真正考验的是不同组织能否重新对上时间、顺序和资源。
一次完整恢复，需要组织之间连续接力。免疫细胞清理现场，血管送来氧和营养，成纤维细胞重建支架，干细胞补充新细胞，神经与内分泌信号再安排疼痛、睡眠和能量分配。局部损伤得到控制，收尾工作才刚刚开始。
上篇讨论基因组、端粒、表观遗传和蛋白质稳态，中篇继续看自噬、营养感知、线粒体与细胞衰老。本篇把视线移向组织和全身：更新储备能否被调用，消息能否按时传递，炎症能否在任务完成后回落，肠道生态能否继续提供稳定的代谢与免疫信号。2023年更新的“衰老标志”框架，最后把干细胞耗竭、细胞间通讯改变、慢性炎症和菌群失调纳入衰老同一张网络。[1][2]
同样的年龄、相似的一次感染或损伤，恢复曲线也可能不同。长期暴露与既往疾病决定了起点，近期的睡眠、饮食、活动和压力又不断改变可用余量。[3] 因此，“总是缓不过来”很少能由某一个标志单独解释，更像是多条组织接力线同时变得不够紧密后出现的综合信号。
一、干细胞耗竭：组织更新还有多少可调用的储备
皮肤、肠道上皮和血液每天都在补充新细胞，骨骼肌受损后也会动员卫星细胞参与修复。干细胞能够自我更新，并分化为承担具体工作的细胞，可以把它理解为组织保留的“更新储备”。
这份储备既要有数量，也要保持质量。上篇提到的DNA损伤、端粒变化、代谢压力和持续炎症都会影响干细胞；而年龄增长后，部分干细胞更难从静息状态中醒来，部分分化能力下降，能够被组织调用的余量也可能减少，身体的储备下降，恢复也自然变慢。[2][4]
干细胞还依赖周围的“生态位”。血流、细胞外基质、邻近细胞和免疫信号，会共同决定它何时启动、往哪里移动、分化成什么。随着年龄和慢性炎症改变局部环境，造血干细胞的分化倾向可能偏移，肌肉卫星细胞也更难得到恰当的激活与支持，损伤后的重建因而放慢。反过来，干细胞输出的新细胞数量和类型发生变化，又会重塑免疫构成、组织结构和局部信号。生态位影响干细胞，干细胞也参与维持生态位，二者形成双向关系。
干细胞需要在静息、增殖和分化之间保持秩序。过度动员可能提前消耗储备，也可能增加异常增殖风险。单一检测无法判断“干细胞储备”，模糊的“激活干细胞”也不适合作为通用健康目标。
有了可调用的新细胞，组织还要告诉它们何时出动、怎样合作、什么时候停止。下一步就进入细胞间通讯。
二、细胞间通讯改变：同样的消息，为什么会在错误的时间出现
人体依靠多层通讯维持合作。激素传递远距离信息，神经系统完成快速调度，免疫细胞释放细胞因子，组织内部还会交换生长因子和代谢物。睡意、食欲、体温、血糖和修复，都需要这些消息在合适时间出现，并在任务结束后逐渐回落，否则就会出现“节奏失真”。
这里所说的“节奏失真”，主体是神经、内分泌和免疫信号之间的时间关系：该出现时不足，该回落时不退，或不同系统在同一时刻给出彼此冲突的指令。年龄增长可能降低部分受体的敏感度、削弱昼夜节律，并改变神经—内分泌—免疫之间的反馈。[2] 同样强度的消息，细胞反应可能变弱；系统为了维持效果，又可能释放更多信号，结果是背景噪声上升，短时指令反而更难被准确读取。
例如，短期压力出现时，交感神经和应激激素会暂时提高警觉、动员能量，把资源优先交给眼前任务；任务结束后，这些信号本应逐步回落，让睡眠、消化和修复重新占上风。缺觉、慢性疼痛、心理压力或疾病负担持续存在时，警报可能跨越本应休息的时段，也可能出现峰值变钝、回落延迟。睡眠、食欲、血糖调节和免疫反应因此互相错位，身体会感觉“一直在应付”，却迟迟没有完成恢复。
疲惫、体重变化和睡眠紊乱并不能单独证明细胞通讯异常；症状持续或加重时，仍需排查贫血、感染、内分泌问题、药物影响及其他疾病。当危险信号在错误的时段反复出现，炎症也可能从短期任务变成长期背景。
三、慢性炎症：警报启动以后，还要完成收尾
急性炎症是一套必要的防御与修复程序。感染或损伤出现时，免疫细胞被召集到现场，帮助限制威胁、清理残骸，并为组织重建创造条件。任务完成后，身体还要减少新的免疫细胞进入，处理剩余物质，让修复程序接管现场。
年龄相关的低度、持续炎症常被称为“炎性衰老”。内脏脂肪、吸烟、污染、缺觉、牙周问题、反复感染、组织损伤和衰老细胞积累，都可能不断发送危险提醒；DNA损伤和受损线粒体也会放大警报。[2][5] 当诱因持续存在，清理速度又跟不上，炎症就更难顺利退出。
长期警戒会反过来影响其他标志。持续的炎症信号可能改变干细胞生态位，干扰代谢调节，增加肌肉分解，并影响神经免疫环境。更多资源用于应急，留给维护和重建的余量便会收窄。
发热、疼痛、关节肿胀、明显乏力、体重异常变化或检验指标异常，都需要结合病因判断。机制科普可以帮助理解系统关系，但不能替代医学评估。
炎症信号也不只来自人体细胞。肠道微生物及其代谢物，一直在参与屏障和免疫调节。
四、菌群失调：肠道生态怎样参与全身协同
肠道是人体最密集的微生物生态系统。微生物利用未被完全消化的食物，产生短链脂肪酸、胆汁酸衍生物等代谢物，参与肠道屏障、免疫和能量代谢，也把饮食与环境变化转成身体能够读取的信号。
菌群失调指微生物组成与功能偏离相对稳定状态。这里没有适用于所有人的“标准菌群”：年龄、地区、饮食、药物、疾病和检测方法都会改变结果。[2][6] 一次粪便检测只能提供局部线索，不能据此判断全身炎症水平或衰老速度。
饮食单一、活动减少、住院和抗生素使用，都可能改变菌群及其代谢功能。肠道屏障受影响时，更多微生物成分会接触免疫系统，产生慢性炎症；慢性炎症又会反过来改变肠道环境。菌群、屏障和免疫由此形成相互影响。
至此，十二个衰老标志连成了一张网络：遗传信息损伤增加清理和供能压力，受损线粒体与衰老细胞放大炎症和通讯变化，组织环境又会反过来影响DNA修复、蛋白质稳态和自噬。恢复变慢，往往意味着整张网络可以调整的余量正在减少。
五、营养与膳食补充剂，可以支持哪些实际环节
支持组织重新协同，首先要让基础条件能够重复出现。抗阻运动提供肌肉更新刺激，有氧活动支持循环和能量利用，规律睡眠为神经、内分泌与免疫信号建立时间结构。总能量、蛋白质和膳食纤维需要与年龄、活动和恢复需求相匹配，高龄、衰弱或疾病恢复期人群尤其要避免营养不足。
第一组证据来自整体饮食。NU-AGE研究分析了五个欧洲国家612名老年人的配对菌群数据：坚持一年适老化地中海式饮食后，与这一饮食模式共同保留或增加的部分菌群特征，和较低的衰弱程度、较好的认知表现及较低的炎症指标相关。[7] 这是正向信号，同样边界也很清楚——研究评估的是由蔬果、全谷物、豆类、坚果、鱼类和橄榄油共同构成的饮食模式，无法把结果拆给某一种食物、某一种菌或某一种补充剂，欧洲老年人中的发现也不能直接外推到所有人。
第二组证据聚焦益生元——这类底物可被肠道菌群选择性利用，并带来健康益处。2024年的多中心研究先筛查1693名65岁以上老人，再在其中200名衰弱或衰弱前期人群中进行双盲随机试验。受试者每日摄入15克菊粉与低聚果糖各占一半的配方，持续12周。研究观察到衰弱状态改善；在不同衰弱阶段，还出现疲劳、步行速度或握力的变化，并伴随部分菌群和代谢指标改变。[9] 这为“改变肠道生态可能支持日常功能”提供了较直接的人体信号。可是，
同一方向的其他研究并没有给出完全一致的结果。2016年的双盲随机试验纳入60名65岁以上衰弱老年人，每日使用7.5克菊粉与低聚果糖配方，持续13周；整体衰弱比例没有显著变化，只有疲劳和握力等部分指标较安慰剂改善。[8] 两项试验一正一限，说明益生元可能影响某些功能，但效果会受到起始衰弱程度、配方、剂量、周期和样本量影响，还不能被理解为对所有人都有效，更不能等同于“逆转衰老”。
第三组证据聚焦益生菌。2019年一项随机、双盲、安慰剂对照试验纳入98名75岁以上老人，连续30天摄入含长双歧杆菌B. longum Bar33与瑞士乳杆菌L. helveticus Bar13的饼干。与安慰剂组相比，益生菌组部分T细胞和B细胞亚群以及自然杀伤细胞活性发生变化，但生化指标没有同步改变。[10] 这提示特定菌株组合可能影响老年人的部分免疫指标，但研究周期较短，尚不能据此推导感染减少或整体恢复力提高。
另一项研究使用了不同的菌株组合。英国养老机构中的老人连续最多12个月摄入鼠李糖乳杆菌LGG与动物双歧杆菌乳亚种BB-12后，两种菌在粪便中的检出增加，但大多数免疫和炎症指标没有显著变化；流感疫苗一个毒株的血清转化率出现提示性改善。[11] 两项研究的结果并不完全一致，也说明益生菌的作用与具体菌株、剂量、宿主状态和观察结局有关，不能把一个组合的结果外推到所有产品。
以上剂量都来自特定研究，不能直接照搬为个人方案。益生元可能带来腹胀、排气和排便变化；胃肠疾病活动期、慢性病、孕期、哺乳期或正在用药的人，应先接受专业评估。完整饮食、活动、睡眠和必要的医疗处理，仍是恢复的基础。
从菌群原料到全身能够感受到的变化，中间隔着生态基础、原料规格、配方、剂量、周期和人群验证。超级元料 SUPER-SYN关注的，是这些环节能否逐步接上：生物学反应是否出现，炎症、衰弱或身体功能是否发生同向变化，结果又适用于哪些人。机制给出方向，具体人群中的结果和边界，决定这些方向能走多远。
结语：十二个衰老标志，最终汇向系统能否重新协同
从基因组不稳定到菌群失调，十二个标志覆盖信息保存、结构维护、清理回收、能源调度、细胞更新和系统通讯。它们没有给出人人相同的衰老时间表，却共同说明一件事：身体的长期状态，来自许多微小过程能否持续接力。
恢复力下降常常先表现为“回来得更慢”。一次压力过后，损伤清理需要更久，能量补充不够及时，炎症信号停留更长，组织之间的接力也更容易出现空档。年龄参与其中，饮食、睡眠、活动、疾病和医疗照护也在改变可用余量。
理解衰老标志的意义，是看见持续负担从哪里进入系统，也看见哪些基础条件仍能被维护。恢复并不等于回到一个从不波动的状态。更实际的目标，是让身体经历扰动后，仍有空间完成清理、重建和收尾，重新找到自己的节奏。
参考文献
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In Parts I and II, we saw that recovery first depends on preserving information and structure inside cells, followed by cleanup and energy supply. Yet even when these processes are individually activated, the whole person may not have recovered. A wound may have closed while muscle strength has not returned; inflammatory markers may have fallen while sleep, appetite, and attention remain out of sync. In the later stages of recovery, the real challenge is whether different tissues can realign their timing, sequence, and use of resources.
Complete recovery requires a continuous relay among tissues. Immune cells clear the site, blood vessels deliver oxygen and nutrients, fibroblasts rebuild structural support, stem cells replenish new cells, and neural and endocrine signals then readjust pain, sleep, and energy allocation. Once local damage is under control, the work of bringing the process to a close has only just begun.
Part I discussed the genome, telomeres, epigenetics, and proteostasis, while Part II continued with autophagy, nutrient sensing, mitochondria, and cellular senescence. This final part shifts the focus to tissues and the whole body: whether renewal reserves can be mobilized, whether messages arrive on time, whether inflammation can subside once its task is complete, and whether the gut ecosystem can continue to provide stable metabolic and immune signals. In the updated 2023 framework of the hallmarks of aging, stem cell exhaustion, altered intercellular communication, chronic inflammation, and dysbiosis complete the same interconnected network of aging.[1][2]
People of the same age can follow very different recovery trajectories after similar infections or injuries. Long-term exposures and previous illnesses help determine the starting point, while recent sleep, diet, activity, and stress continually alter the reserve that remains available.[3] For this reason, feeling as though you are “never quite bouncing back” is rarely explained by a single hallmark. It is more often a combined signal that several tissue-level relay systems have become less tightly coordinated at the same time.
1. Stem Cell Exhaustion: How Much Renewal Reserve Can Tissues Still Call On?
The skin, intestinal lining, and blood continually replenish cells, and skeletal muscle can mobilize satellite cells after injury to participate in repair. Stem cells can self-renew and differentiate into cells that perform specific functions, making them a useful way to think about the body’s tissue-level “renewal reserve.”
This reserve depends on both quantity and quality. DNA damage, telomere changes, metabolic stress, and persistent inflammation—all discussed earlier in this series—can affect stem cells. With advancing age, some stem cells become harder to awaken from quiescence, some lose part of their capacity to differentiate, and the amount of reserve that tissues can call upon may decline. As this reserve narrows, recovery naturally becomes slower.[2][4]
Stem cells also depend on the surrounding “niche.” Blood flow, the extracellular matrix, neighboring cells, and immune signals together influence when a stem cell activates, where it moves, and what type of cell it becomes. As aging and chronic inflammation alter the local environment, hematopoietic stem cells may shift their differentiation patterns, while muscle satellite cells may receive less appropriate activation and support, slowing reconstruction after injury. In turn, changes in the number and types of new cells produced by stem cells can reshape immune composition, tissue structure, and local signaling. The niche influences stem cells, and stem cells help maintain the niche: the relationship works in both directions.
Stem cells need to maintain order as they move among quiescence, proliferation, and differentiation. Excessive mobilization may deplete reserves prematurely and may also increase the risk of abnormal proliferation. No single test can determine a person’s “stem cell reserve,” and vague claims about “activating stem cells” are not suitable as a universal health goal.
Even when new cells are available, tissues still have to tell them when to act, how to cooperate, and when to stop. This brings us to intercellular communication.
2. Altered Intercellular Communication: Why Can the Same Message Arrive at the Wrong Time?
The body relies on multiple layers of communication to coordinate its work. Hormones carry long-distance information, the nervous system provides rapid control, immune cells release cytokines, and tissues also exchange growth factors and metabolites locally. Sleepiness, appetite, body temperature, blood glucose, and repair all depend on these messages appearing at the right time and gradually subsiding once the task is complete. When they do not, the system can fall into a kind of “rhythm distortion.”
Here, “rhythm distortion” refers mainly to changes in the timing relationships among neural, endocrine, and immune signals: a signal may be too weak when it is needed, fail to recede when it should, or conflict with instructions coming from another system at the same moment. Aging can reduce the sensitivity of some receptors, weaken circadian rhythms, and alter feedback among the nervous, endocrine, and immune systems.[2] The same-strength message may then produce a weaker cellular response. To maintain the effect, the system may release more signals, raising the background noise and making short-term instructions harder to read accurately.
For example, during short-term stress, sympathetic activity and stress hormones temporarily increase alertness and mobilize energy so that resources can be directed toward the immediate challenge. Once that challenge has passed, these signals should gradually subside, allowing sleep, digestion, and repair to regain priority. When sleep deprivation, chronic pain, psychological stress, or disease burden persists, alarm signals may spill into periods that should be reserved for rest. Their peaks may also become blunted or their decline delayed. Sleep, appetite, glucose regulation, and immune responses can then drift out of alignment, leaving the body feeling as though it is constantly coping without ever fully completing recovery.
Fatigue, weight changes, and disrupted sleep cannot by themselves prove that intercellular communication is impaired. When symptoms persist or worsen, anemia, infection, endocrine disorders, medication effects, and other diseases still need to be considered. When danger signals repeatedly appear at the wrong time, inflammation can also shift from a short-term task into a long-term background state.
3. Chronic Inflammation: Starting the Alarm Is Only Half the Job—It Also Has to Be Resolved
Acute inflammation is a necessary program for defense and repair. When infection or injury occurs, immune cells are recruited to the site to help contain the threat, clear debris, and create conditions for tissue rebuilding. Once the task is complete, the body must also reduce the arrival of additional immune cells, process what remains, and allow repair programs to take over the site.
Age-related, low-grade, persistent inflammation is often referred to as “inflammaging.” Visceral fat, smoking, pollution, sleep deprivation, periodontal problems, recurrent infections, tissue injury, and the accumulation of senescent cells can all continue to send danger signals. DNA damage and impaired mitochondria can amplify the alarm as well.[2][5] When the triggers persist and clearance cannot keep up, inflammation becomes harder to resolve smoothly.
Long-term immune vigilance can, in turn, affect other hallmarks. Persistent inflammatory signaling may alter stem-cell niches, interfere with metabolic regulation, increase muscle breakdown, and affect the neuroimmune environment. As more resources are directed toward emergency response, less reserve remains available for maintenance and rebuilding.
Fever, pain, joint swelling, pronounced fatigue, unexplained weight changes, or abnormal laboratory results all need to be interpreted in the context of their underlying cause. Mechanistic education can help explain how these systems are connected, but it cannot replace medical evaluation.
Inflammatory signals do not come only from human cells. Gut microorganisms and the metabolites they produce continuously participate in barrier function and immune regulation.
4. Dysbiosis: How Does the Gut Ecosystem Participate in Whole-Body Coordination?
The gut is the body’s most densely populated microbial ecosystem. Microorganisms use food components that have not been fully digested to produce metabolites such as short-chain fatty acids and bile-acid derivatives. These metabolites participate in intestinal barrier function, immunity, and energy metabolism, while also converting changes in diet and the environment into signals the body can read.
Dysbiosis refers to a shift in microbial composition and function away from a relatively stable state. There is no single “standard microbiome” that applies to everyone: age, geography, diet, medications, disease, and testing methods can all change the results.[2][6] A single stool test therefore provides only a partial clue and cannot be used on its own to determine whole-body inflammation or the pace of aging.
A limited diet, reduced activity, hospitalization, and antibiotic use can all alter the microbiome and its metabolic functions. When the intestinal barrier is disrupted, more microbial components can come into contact with the immune system and contribute to chronic inflammation; chronic inflammation can then alter the gut environment in return. The microbiome, barrier, and immune system therefore influence one another continuously.
At this point, the twelve hallmarks of aging form a single network: damage to genetic information increases the pressure on cleanup and energy supply; impaired mitochondria and senescent cells amplify inflammation and communication changes; and the tissue environment feeds back to influence DNA repair, proteostasis, and autophagy. Slower recovery often reflects a reduction in how much room the entire network still has to adjust.
5. Which Practical Links Can Nutrition and Dietary Supplements Support?
Supporting tissues as they resynchronize begins with making the basic conditions for recovery reliably repeatable. Resistance exercise provides a stimulus for muscle renewal, aerobic activity supports circulation and energy use, and regular sleep creates a time structure for neural, endocrine, and immune signaling. Total energy intake, protein, and dietary fiber need to match age, activity level, and recovery needs. Avoiding undernutrition is especially important in older adults, people with frailty, and those recovering from illness.
The first group of evidence comes from overall dietary patterns. The NU-AGE study analyzed paired microbiome data from 612 older adults across five European countries. After one year of an age-adapted Mediterranean-style diet, some microbial features that were preserved or enriched alongside this dietary pattern were associated with lower frailty, better cognitive performance, and lower inflammatory markers.[7] This is a positive signal, and its boundaries are equally clear: the study evaluated a dietary pattern composed of fruits and vegetables, whole grains, legumes, nuts, fish, and olive oil. The results cannot be assigned to any single food, microorganism, or supplement, and findings from older European adults cannot be directly generalized to everyone.
The second group of evidence focuses on prebiotics—substrates that are selectively utilized by gut microorganisms and confer a health benefit. A 2024 multicenter study first screened 1,693 adults aged 65 years or older, then enrolled 200 people with frailty or pre-frailty in a double-blind randomized trial. Participants consumed 15 grams per day of a formula containing equal parts inulin and fructooligosaccharides for 12 weeks. The study observed improvement in frailty status; depending on baseline frailty stage, changes were also seen in fatigue, walking speed, or grip strength, together with shifts in some microbiome and metabolic markers.[9] This provides relatively direct human evidence that changing the gut ecosystem may support everyday function.
Other studies in the same direction have not produced fully consistent results. A 2016 double-blind randomized trial enrolled 60 frail adults aged 65 years or older who received 7.5 grams per day of an inulin-fructooligosaccharide formula for 13 weeks. The overall proportion of participants classified as frail did not change significantly, although some measures, including fatigue and grip strength, improved compared with placebo.[8] Taken together, the two trials—one more positive and one more limited—suggest that prebiotics may influence certain functional outcomes, while their effects depend on baseline frailty, formulation, dose, duration, and sample size. They should not be interpreted as universally effective or equated with “reversing aging.”
The third group of evidence focuses on probiotics. A randomized, double-blind, placebo-controlled trial published in 2019 enrolled 98 adults older than 75 years. For 30 days, participants consumed biscuits containing Bifidobacterium longum Bar33 and Lactobacillus helveticus Bar13. Compared with placebo, the probiotic group showed changes in some T-cell and B-cell subpopulations as well as natural killer cell activity, while biochemical markers did not change in parallel.[10] This suggests that a specific strain combination may influence certain immune measures in older adults, although the short study duration does not justify concluding that it reduces infections or improves overall recovery capacity.
Another study used a different combination of probiotic strains. Older adults living in UK care homes consumed Lacticaseibacillus rhamnosus GG and Bifidobacterium animalis subsp. lactis BB-12 for up to 12 months. Detection of both strains in stool increased, while most immune and inflammatory markers showed no significant change; there was a suggestive improvement in seroconversion to one influenza-vaccine strain.[11] The two studies did not produce fully consistent results, further illustrating that probiotic effects depend on the specific strains, dose, host condition, and outcomes being measured. Findings from one combination cannot be generalized to all probiotic products.
All doses described above come from specific studies and should not be copied directly into an individual regimen. Prebiotics can cause bloating, gas, and changes in bowel habits. People with active gastrointestinal disease, chronic conditions, pregnancy, breastfeeding, or ongoing medication use should first receive professional assessment. A complete diet, physical activity, sleep, and necessary medical care remain the foundation of recovery.
Between a microbiome-focused ingredient and a change that the whole body can actually feel lie the baseline ecosystem, ingredient specifications, formulation, dose, duration, and validation in the intended population. SUPER-SYN focuses on whether these steps can be connected progressively: whether a biological response occurs, whether inflammation, frailty, or physical function changes in the same direction, and which populations the findings actually apply to. Mechanisms provide direction; outcomes and boundaries in specific populations determine how far that direction can be taken.
Conclusion: The Twelve Hallmarks of Aging Ultimately Converge on Whether the System Can Resynchronize
From genomic instability to dysbiosis, the twelve hallmarks span information preservation, structural maintenance, cleanup and recycling, energy allocation, cellular renewal, and system-level communication. They do not provide the same aging timetable for everyone, but together they point to one central idea: the body’s long-term state depends on whether many small processes can keep handing work off to one another.
Declining recovery capacity often first appears as “taking longer to come back.” After a stressor, damage takes longer to clear, energy is replenished less promptly, inflammatory signals linger, and the relay between tissues is more likely to develop gaps. Age is part of this process, while diet, sleep, activity, disease, and medical care also continue to shape how much reserve remains available.
The value of understanding the hallmarks of aging lies in seeing where persistent burdens enter the system and which basic conditions can still be maintained. Recovery does not mean returning to a state that never fluctuates. A more practical goal is to preserve enough room for the body to clear damage, rebuild, and bring the response to an appropriate close after disruption—then find its rhythm again.
References
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- López-Otín C, Blasco MA, Partridge L, Serrano M, Kroemer G. Hallmarks of Aging: An Expanding Universe. Cell. 2023;186(2):243-278. doi:10.1016/j.cell.2022.11.001.
- Bland JS. The Disease Delusion: Conquering the Causes of Chronic Illness for a Healthier, Longer, and Happier Life. HarperWave, 2014. ISBN:9780062290731.
- Ermolaeva M, Neri F, Ori A, Rudolph KL. Cellular and epigenetic drivers of stem cell ageing. Nature Reviews Molecular Cell Biology. 2018;19(9):594-610. doi:10.1038/s41580-018-0020-3.
- Ferrucci L, Fabbri E. Inflammageing: chronic inflammation in ageing, cardiovascular disease, and frailty. Nature Reviews Cardiology. 2018;15(9):505-522. doi:10.1038/s41569-018-0064-2.
- Bosco N, Noti M. The aging gut microbiome and its impact on host immunity. Genes & Immunity. 2021;22(5-6):289-303. doi:10.1038/s41435-021-00126-8.
- Ghosh TS, Rampelli S, Jeffery IB, et al. Mediterranean diet intervention alters the gut microbiome in older people reducing frailty and improving health status: the NU-AGE one-year dietary intervention across five European countries. Gut. 2020;69(7):1218-1228. doi:10.1136/gutjnl-2019-319654.
- Buigues C, Fernández-Garrido J, Pruimboom L, et al. Effect of a Prebiotic Formulation on Frailty Syndrome: A Randomized, Double-Blind Clinical Trial. International Journal of Molecular Sciences. 2016;17(6):932. doi:10.3390/ijms17060932.
- Yang J, Hou L, Wang A, et al. Prebiotics improve frailty status in community-dwelling older individuals in a double-blind, randomized, controlled trial. Journal of Clinical Investigation. 2024;134(18):e176507. doi:10.1172/JCI176507.
- Finamore A, Roselli M, Donini L, et al. Supplementation with Bifidobacterium longum Bar33 and Lactobacillus helveticus Bar13 mixture improves immunity in elderly humans (over 75 years) and aged mice. Nutrition. 2019;63-64:184-192. doi:10.1016/j.nut.2019.02.005.
- Castro-Herrera VM, Fisk HL, Wootton M, et al. Combination of the Probiotics Lacticaseibacillus rhamnosus GG and Bifidobacterium animalis subsp. lactis, BB-12 Has Limited Effect on Biomarkers of Immunity and Inflammation in Older People Resident in Care Homes: Results From the Probiotics to Reduce Infections iN CarE home reSidentS Randomized, Controlled Trial. Front Immunol. 2021;12:643321. doi:10.3389/fimmu.2021.643321.