Tissue renewal
Hepatocyte Proliferation
Also searched as Hepatocyte Proliferation.
You want it ready: brisk regeneration is how the liver recovers from insult.
In depth
Hepatocyte proliferation — the liver's remarkable capacity to regenerate and restore its own mass.
What drives it
Calms inflammation increases it.
NF-κB/liver-regeneration review 2010 — NF-κB activation (in Kupffer cells) drives the priming phase of liver regeneration via sequential TNF-α/IL-6 production, licensing hepatocyte proliferation. PMC2948885. The claim as drawn: a pro-inflammatory response mediated predominantly through Kupffer cells primes hepatocytes to enter the cell cycle during the 0-6h priming phase after partial hepatectomy, and transient upregulation of NF-kappa-B and JNK in TLR/MyD88 and TNFR signaling leads to normal regeneration (PMC2948885; PMC4493398). But hepatocyte NF-kappa-B is not the one that matters: attenuating NF-kappa-B in ~45% of hepatocytes with an IkB-alpha superrepressor did not alter regeneration, and hepatocyte-specific IKK-beta deletion did not alter PH-induced proliferation — yet inactivating IKK-beta in all liver cells including Kupffer cells did impair it. The stated conclusion is that NF-kappa-B signaling within hepatocytes is irrelevant to the regenerative response and instead fulfils a cytoprotective role; the regenerative signal comes from non-parenchymal cells (PMC3462179). And the canonical subunit is dispensable — a paper is titled 'the NF-kappa-B subunit RelA/p65 is dispensable for successful liver regeneration after partial hepatectomy in mice'. And the noncanonical arm runs the other way: hepatic NIK (NF-kappa-B-inducing kinase) and its substrate IKK-alpha suppress reparative hepatocyte proliferation, at least partly by inhibiting JAK2/STAT3, and are aberrantly activated in chronic liver disease (eLife 2018;7:e34152). So within one node: canonical NF-kappa-B in Kupffer cells promotes regeneration, hepatocyte NF-kappa-B is cytoprotective not proliferative, and the noncanonical NIK/IKK-alpha branch blocks regeneration. 'Lower NF-kappa-B' has no single meaning here at all. PMC2948885
Bone health increases it.
Marrow is the mesenchymal and hematopoietic stem cell reservoir.
Stem cell reserve increases it.
The reserve enables the act - stemcell is what regeneration draws on. (doi 10.1016/j.molmet.2023.101755; doi 10.1007/s10522-026-10408-1; PMC12293478). REFUTED ON A SECOND READING. This link was shown by linked steps until a source was opened that does not support it: “In contrast, regeneration after surgical resection of a portion of the liver (partial hepatectomy, PHx) does not require such stem/progenitor cells; the remnant tissue undergoes hyperplasia to recover” — To divide or not to divide: revisiting liver regeneration. Cell Division, 2013, 8(1), 8. doi 10.1016/j.molmet.2023.101755 · PMC12293478
What it drives
It increases Liver.
Michalopoulos 2017 (Hepatostat), Hepatology 65:1384 — after hepatocyte loss, coordinated hepatocyte proliferation restores liver mass (partial-hepatectomy model). PMID 27997988
It increases Muscle.
Impaired satellite cell function is named across the reviews, and sarcopenic muscle shows loss of fibronectin-rich ECM, coupled with fibrotic changes and adipocyte infiltration, disrupting MuSC QUIESCENCE and self-renewal. doi 10.3390/ijms26146740 · PMC13074595
It increases Bone health.
Named across six reviews of bone remodeling and osteoarthritis pathogenesis. Bone remodeling relies on the coordinated actions of bone-resorbing osteoclasts, bone-forming osteoblasts, and osteocytes serving as mechanosensors and local remodeling coordinators. PMC10648156
It increases Joint wear.
Named across six reviews of bone remodeling and osteoarthritis pathogenesis. Bone remodeling relies on the coordinated actions of bone-resorbing osteoclasts, bone-forming osteoblasts, and osteocytes serving as mechanosensors and local remodeling coordinators. PMC10648156
It increases Recovery.
10.3390/cells12091214 — Recovery is assembled from the sarcopenia and VO2max literatures; none of the papers cited studied recovery itself. doi 10.3390/cells12091214
It increases Women's hormone balance.
The genitalia and lower urinary tract share common estrogen receptor function. The receptor change is the estrogen receptors alpha and beta ARE present in the vagina, vestibule, urethra and bladder TRIGONE - while both receptors can be found in premenopausal women, only estrogen-beta receptors can be detected in postmenopausal women. The tissue does not merely see less hormone; it loses a receptor subtype. And a pH loop with a clinical endpoint: estrogen maintains vaginal glycogen, lactobacilli convert it to lactic acid holding pH at 3.5-5.0; loss of estrogen is responsible for the reduction of Lactobacillus, changing the vaginal fluid to an alkaline pH of 5.0 OR above, which promotes overgrowth of gram-negative rod fecal flora, inducing vaginal infection and UTI. Scale and underdiagnosis: GSM affects 40-54 percent of postmenopausal women and 15 percent of premenopausal women, and around 60 percent of these women have never had a diagnosis of GSM before. doi 10.3389/frph.2021.779398 · PMC10692865
It increases Urinary health.
The genitalia and lower urinary tract share common estrogen receptor function. The receptor change is the estrogen receptors alpha and beta ARE present in the vagina, vestibule, urethra and bladder TRIGONE - while both receptors can be found in premenopausal women, only estrogen-beta receptors can be detected in postmenopausal women. The tissue does not merely see less hormone; it loses a receptor subtype. And a pH loop with a clinical endpoint: estrogen maintains vaginal glycogen, lactobacilli convert it to lactic acid holding pH at 3.5-5.0; loss of estrogen is responsible for the reduction of Lactobacillus, changing the vaginal fluid to an alkaline pH of 5.0 OR above, which promotes overgrowth of gram-negative rod fecal flora, inducing vaginal infection and UTI. Scale and underdiagnosis: GSM affects 40-54 percent of postmenopausal women and 15 percent of premenopausal women, and around 60 percent of these women have never had a diagnosis of GSM before. doi 10.3389/frph.2021.779398 · PMC10692865
It increases Iron & oxygen carriage.
The mechanism that makes iron supplementation fail: anemia of inflammation is characterized by the insufficient production of erythropoietin and decreased response of erythroid progenitors to EPO. In addition, it inhibits the release of iron from the body stores and alters the iron status after being stimulated by hepcidin. Inflammation locks iron away - so oral iron given into an inflammatory state does not reach the marrow. Anemia affects 1.62 billion people. And the periodontal link is measured: a meta-analysis of sixteen studies on hemoglobin and iron metabolism in periodontitis - though the authors call the association still controversial and ask for larger cohorts. PMID 835510 · PMC7005133
It reduces Cellular aging.
Regenerative capacity opposes accumulated damage. Drawn after broadening this pathway's definition from hepatocyte-specific to tissue-general. doi 10.1016/j.molmet.2023.101755 · PMC12293478
It increases Wound healing.
The one measured finding among them is the periodontal-anemia link: a meta-analysis of sixteen studies on hemoglobin and iron metabolism in periodontitis, whose authors call the association still controversial and ask for larger cohorts. doi 10.1152/japplphysiol.00971.2016 · PMC7005133
It increases Female fertility.
The central finding is that reactive oxygen species ARE required, not merely harmful: ROS in the ovary regulate ovarian steroid hormone production, follicle synthesis, maturation, ovulation, and tubal function. ROS and antioxidant levels regulate the microenvironment of the follicular fluid, which determines which follicle becomes dominant. ROS can trigger ovulation in mature GRAAF follicles, and any change in this ROS level can disrupt ovulation. So an antioxidant claim here cuts both ways - the requirement is redox homeostasis, not suppression. Excess oxidative stress damages the oocyte through mitochondrial dysfunction, follicular atresia, meiotic errors, DNA damage and telomere shortening; too little disrupts the ovulatory trigger itself. Scale: infertility affects approximately 10-15 percent of couples, with nearly half the cases attributed to female reproductive dysfunction. doi 10.3390/antiox12081490 · PMID 40712896 · PMC10666387
It increases Alcohol recovery.
10.21037/atm.2020.02.168 — Drawn from reviews of neighboring outcomes rather than from studies of this outcome itself, which is weaker evidence, and the map marks it so. doi 10.21037/atm.2020.02.168
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.