Liver regeneration after partial hepatectomy: Triggers and mechanisms

May combine two claims.

Major resections lead to hyperplastic regeneration, driven by both hypertrophy and cell proliferation.

“Major resections, by contrast, lead to hyperplastic regeneration, driven by both hypertrophy and cell proliferation[5,7].”

• cites [5] sourceNot checked — no full text of the source
• cites [7] sourceSupported

May combine two claims.

In rodent models, liver mass is typically restored within 7-10 days after partial hepatectomy, with a peak in DNA synthesis occurring within the first 1-3 days.

“In rodent models, experimental data show that liver mass is typically restored within 7-10 days after partial hepatectomy, with a peak in DNA synthesis occurring within the first 1-3 days.”

• cites [7] sourceSupported
• cites [17] sourceNot checked — no full text of the source

May combine two claims.

Hypertrophy predominates after minor resections, while proliferation is dominant in larger resections.

“noting that hypertrophy predominates after minor resections, while proliferation is dominant in larger resections.”

• cites [5] sourceNot checked — no full text of the source
• cites [7] sourcePartly supported

  The Introduction (section 1; page not provided) reports that regeneration after 30% partial hepatectomy occurred solely through hypertrophy. For 70% hepatectomy, however, it says hypertrophy and subsequent proliferation contributed almost equally—not that proliferation was dominant. (LLM, conf=0.90)

  Experimental — accuracy not yet measured

May combine two claims.

Piezo1 is a mechanosensitive ion channel highly expressed in vascular endothelial cells.

“Piezo1 - a mechanosensitive ion channel highly expressed in vascular endothelial cells”

• cites [19] sourcePartly supported

  The Piezo Ion Channels section identifies Piezo1 as a mechanically activated ion channel, and the Conclusions/Future Directions section says it is required for mechanotransduction in endothelial cells. The copy does not say that Piezo1 is highly expressed in vascular endothelial cells; that expression-level qualifier is unsupported. (LLM, conf=0.86)

  Experimental — accuracy not yet measured

May combine two claims.

In humans, complete liver mass recovery usually takes up to 3 months, although hepatocyte DNA synthesis reaches its peak between postoperative days 7 and 10.

“In contrast, in humans, complete liver mass recovery usually takes up to 3 months, although hepatocyte DNA synthesis—measured by radiolabel uptake or Ki-67 staining—reaches its peak between postoperative days 7 and 10[7,17].”

• cites [7] sourcePartly supported

  The Introduction states that, in humans, liver mass is restored around three months after right or left hepatectomy and DNA synthesis peaks on postoperative days 7–10. It does not say that the human peak was measured by radiolabel uptake or Ki-67 staining, as the full citing sentence specifies. (LLM, conf=0.84)

  Experimental — accuracy not yet measured
• cites [17] sourceNot checked — no full text of the source

May combine two claims.

AREG and EREG activate EGFR signaling in hepatocytes, driving their proliferation, especially in liver zones 1 and 2.

“These ligands activate epidermal growth factor receptor (EGFR) signaling in hepatocytes driving their proliferation, especially in liver zones 1 and 2[4,20].”

• cites [4] sourcePartly supported

  The Results section reports that AREG and EREG activate EGFR and promote proliferation in LO2 hepatocytes. It also reports higher EGFR expression in zones 1 and 2 than in zone 3, but does not show that AREG- and EREG-driven proliferation occurs especially in those zones; the proposed link between ligand secretion and regional proliferation is presented as a suggestion. (LLM, conf=0.82)

  Experimental — accuracy not yet measured
• cites [20] sourcePartly supported

  The “Ligands of EGFR” and “Mitogenic Signals Associated With Initiation of Liver Regeneration” sections identify amphiregulin (AREG) as an EGFR ligand and describe EGFR ligands as direct mitogens for hepatocytes in culture. They do not establish the claim for epiregulin (EREG) or show that these ligands drive proliferation especially in liver zones 1 and 2. The passages provide no page numbers. (LLM, conf=0.85)

  Experimental — accuracy not yet measured

May combine two claims.

Both PAMPs and LPS activate Kupffer cells, which subsequently synthesize IL-6 and TNF-alpha.

“Both PAMPs and LPS activate Kupffer cells, which subsequently synthesize two key cytokines—IL-6[45] and tumour necrosis factor-alpha (TNF-α)[46].”

• cites [45] sourceCould not verify

  The introductory passage and Discussion describe IL-6 and TNF-α in liver regeneration after partial hepatectomy, but neither says that PAMPs or LPS activate Kupffer cells to synthesize IL-6. Searches for Kupffer cells, lipopolysaccharide, and pathogen-associated molecular patterns found no passage establishing that pathway. The separate citation attached to TNF-α is not assessed here. (LLM, conf=0.76)

  Experimental — accuracy not yet measured
• cites [46] sourceSupported

May combine two claims.

Hepatic sympathetic nerves are crucial for the inhibitory effect on liver regeneration by releasing norepinephrine, which acts on ADRB2 and blocks proinflammatory macrophage activation.

“In addition, hepatic sympathetic nerves were crucial for the inhibitory effect on LR by releasing norepinephrine (NE), which acts on the adrenergic receptor β2 (ADRB2) and blocks proinflammatory macrophage activation.”

• cites [34] sourceSupported

May combine two claims.

Increased portal pressure and blood flow enhance shear stress effects and promote the release of growth factors, which play a critical role in hepatocyte proliferation and angiogenesis.

“This enhances shear stress effects and promotes the release of growth factors, which play a critical role in hepatocyte proliferation and angiogenesis[44].”

• cites [44] sourcePartly supported

  The introductory passages (indexed as Abstract; page unavailable) say that growth factors stimulate hepatocytes and that VEGF expression increases after partial hepatectomy. The Discussion links angiogenic signaling to liver regeneration. The paper does not say that increased portal pressure or blood flow creates shear stress that promotes growth-factor release; searches for those terms found no supporting passage. (LLM, conf=0.86)

  Experimental — accuracy not yet measured

May combine two claims.

Blocking IL-22 does not completely suppress STAT3 activation, suggesting that liver regeneration is contributed by multiple regulatory mechanisms.

“Interestingly, blocking IL-22 does not completely suppress STAT3 activation, suggesting that LR is contributed by multiple regulatory mechanisms.”

• cites [48] sourceSupported

May combine two claims.

IL-33 is activated via the ST2 receptor and stimulates serotonin release into portal circulation, promoting hepatocyte proliferation through the HTR2A/p70S6K pathway.

“IL-33 is activated via the suppression of tumorigenicity 2 (ST2) receptor and stimulates serotonin release into portal circulation. This mechanism promotes hepatocyte proliferation through the 5-Hydroxytryptamine Receptor 2A/Ribosomal Protein S6 Kinase, 70kDa (HTR2A/p70S6K) pathway[65].”

• cites [65] sourceSupported

May combine two claims.

IL-22 administration increases IL-6 and TGF-β levels, indicating that its regenerative effects are closely linked to these signaling pathways.

“Conversely, IL-22 administration increases IL-6 and TGF-β levels, indicating that its regenerative effects are closely linked to these signaling pathways.”

• cites [48] sourcePartly supported

  The Discussion reports that IL-22 administration increased hepatic and serum IL-6. It reports decreased TGF-α after IL-22 blockade, not increased TGF-β after administration; the claimed link to TGF-β is therefore unsupported. (LLM, conf=0.91)

  Experimental — accuracy not yet measured

May combine two claims.

TGF-β is a central regulator of liver regeneration with a dual role: at low concentrations it promotes regeneration, and at high concentrations it induces hepatocyte apoptosis and suppresses regeneration.

“Transforming growth factor-beta (TGF-β) is one of the central regulators of LR but exhibits a dual role: At low concentrations, it promotes regeneration; at high concentrations, it induces hepatocyte apoptosis and suppresses regeneration.”

• cites [60] sourcePartly supported

  The Termination phase section says TGF-β1 induces cell apoptosis to correct excessive liver mass and describes some TGF-β family members as inhibitors of proliferation. It does not say that low concentrations of TGF-β promote regeneration or that its effects switch at a particular concentration; the Proliferative phase instead names TGF-α as a mitogen. Page numbers are not provided in our copy. (LLM, conf=0.89)

  Experimental — accuracy not yet measured

May combine two claims.

FoxO3a, activated by the CCL5/CCR1/CCR5 signaling axis, inhibits HGF production and promotes pro-inflammatory macrophage polarization, thereby restricting the liver's regenerative capacity.

“Forkhead box O3 (FoxO3a), activated by the CCL5/chemokine receptors 1&5 (CCL5/CCR1/CCR5) signaling axis, inhibits HGF production and promotes pro-inflammatory macrophage polarization, thereby restricting the liver's regenerative capacity.”

• cites [66] sourceCould not verify

  The Discussion describes regulation of CCL5 in several cell types, while the Methods concern IL-33-stimulated human mast cells. Searches for FoxO3a, CCR1/CCR5, HGF, macrophage polarization, and liver regeneration found no passage addressing the claimed signaling axis or its effect on liver regeneration. Page numbers were not available in our copy. (LLM, conf=0.76)

  Experimental — accuracy not yet measured

May combine two claims.

Notch can modulate STAT3 activity and influence dedifferentiation of liver sinusoidal endothelial cells, which is crucial for liver repair.

“Additionally, Notch can modulate STAT3 activity and influence the dedifferentiation of LSECs (liver sinusoidal endothelial cells), which is crucial for liver repair mechanisms[58].”

• cites [58] sourcePartly supported

  The Discussion (page not provided) reports that Notch activation increases LSEC dedifferentiation and reduces signals that support hepatocyte proliferation during liver regeneration. It identifies eNOS–sGC signaling, not STAT3, as the pathway affected; the passages retrieved for STAT3 do not support that part of the claim. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

The elevation of β-catenin represents an early event in liver regeneration and significantly impacts the activation of the hepatocyte cell cycle.

“The elevation of β-catenin represents an early event in LR and significantly impacts the activation of the hepatocyte cell cycle.”

• cites [49] sourceSupported

Classified as probably not a substantial claim.

The Akt/mTORC1 pathway is a key mediator of cell growth in many cellular systems, including certain settings of liver regeneration.

“However, The Akt/mTORC1 pathway is a key mediator of cell growth in many cellular systems, including certain settings of liver regeneration[55].”

• cites [55] sourcePartly supported

  In “Hepatocytes enlarge” (page unavailable), the paper says the Akt–mTOR axis regulates the size of various cell types and seems important for hepatocyte hypertrophy during liver regeneration. It discusses mTOR generally, however, and does not identify mTORC1 specifically as the mediator. (LLM, conf=0.79)

  Experimental — accuracy not yet measured

May combine two claims.

Notch signaling is a mediator of the Hippo/YAP pathway; YAP activation increases Notch receptor expression, triggering Notch signaling and translocation of the Notch intracellular domain into the nucleus.

“Notch signaling is also considered a mediator of the Hippo/YAP (Yes-Associated Protein) pathway. The activation of YAP leads to an increase in Notch receptor expression, which in turn triggers Notch signaling and translocation of Notch intracellular domain into the nucleus[57].”

• cites [57] sourcePartly supported

  The Results (page not provided) report that YAP or TAZ overexpression increased JAG1 expression and Notch signaling activity, supporting the link between Hippo/YAP and Notch. But JAG1 is the ligand, not a Notch receptor; the cited passages also do not establish that YAP activation causes NICD to translocate into the nucleus. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

Meloxicam, a selective cyclooxygenase-2 inhibitor, enhances liver regeneration by increasing EGFR expression, leading to a 70% improvement in liver regeneration following resection.

“For instance, Meloxicam - a selective cyclooxygenase-2 inhibitor, was identified as a pharmacological agent capable of enhancing LR, demonstrating the increase of EGFR expression, leading to a 70% improvement in LR following resection[67].”

• cites [67] sourcePartly supported

  The “Liver regeneration after resection” section (page not provided) reports increased hepatocyte EGFR expression and 70% greater liver-mass regeneration after hepatectomy with meloxicam. That result is specifically in diet-induced obese mice, whereas the claim leaves the population unrestricted. Our copy also does not identify meloxicam as a selective cyclooxygenase-2 inhibitor or establish that increased EGFR expression caused the improvement. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

NF-κB inhibits hepatocyte apoptosis and accelerates liver regeneration by promoting pro-survival and anti-apoptotic genes.

“Studies have demonstrated that NF-κB inhibits hepatocyte apoptosis and accelerates LR by promoting the expression of pro-survival and anti-apoptotic genes[54].”

• cites [54] sourcePartly supported

  The Introduction says NF-κB protects hepatocytes from apoptosis through expression of anti-apoptotic genes, and the ‘NF-κB in liver regeneration’ section reports a role in hepatocyte survival and proliferation after partial hepatectomy. It does not establish that NF-κB accelerates liver regeneration through those genes; that section also notes a study in which deleting IKKβ in hepatocytes accelerated proliferation. Page numbers were not supplied. (LLM, conf=0.86)

  Experimental — accuracy not yet measured

May combine two claims.

Blocking IL-22 slows down liver regeneration, as evidenced by a decrease in DNA synthesis (reduced BrdU incorporation) and lower activation of STAT3.

“Blocking IL-22 has been shown to slow down LR, as evidenced by a decrease in DNA synthesis (reduced BrdU incorporation) and lower activation of signal transducer and activator of transcription 3 (STAT3), a key transcription factor involved in cell survival and proliferation.”

• cites [48] sourcePartly supported

  The Discussion (page unavailable) reports delayed liver regeneration and reduced BrdU staining after IL-22 blockade. Although an earlier Discussion passage says blockade reduced STAT3 activation, the Results explicitly report no effect, as does the Discussion’s concluding account. The claim’s lower-STAT3-activation component is therefore not supported by the reported results. (LLM, conf=0.90)

  Experimental — accuracy not yet measured

May combine two claims.

Hyperactivation of the Wnt/β-catenin pathway is a key mechanism in the pathogenesis of hepatocellular carcinoma, as it promotes uncontrolled cell proliferation.

“Hyperactivation of the Wnt/β-catenin pathway is a key mechanism in the pathogenesis of hepatocellular carcinoma, as it promotes uncontrolled cell proliferation[51].”

• cites [51] sourceSupported

May combine two claims.

Hedgehog signaling regulates YAP-1 expression, stimulates glutaminolysis, activates hepatic stellate cells, prevents apoptosis of hepatocytes, biliary epithelial cells, and liver progenitor cells, and plays an up-regulatory role in liver regeneration.

“The Hedgehog (Hh) signaling pathway regulates the expression of YAP-1, which in turn stimulates glutaminolysis and activates hepatic stellate cells (Ito cells). Additionally, Hh signaling prevents apoptosis of hepatocytes, biliary epithelial cells, and liver progenitor cells, playing an up-regulatory role in LR[60].”

• cites [60] sourceSupported

May combine two claims.

Following tissue damage, β-catenin levels rise significantly, which may be linked to shear stress, and it plays a crucial role in transcription of genes essential for cell proliferation.

“Following tissue damage, β-catenin levels rise significantly, which may be linked to shear stress, and it plays a crucial role in transcription of genes essential for cell proliferation[49].”

• cites [49] sourcePartly supported

  The Wnt SIGNALING IN LIVER REGENERATION section reports that β-catenin levels rise after partial hepatectomy, followed by nuclear translocation and expression of genes for hepatocyte proliferation. It also says shear-stressed endothelial cells produce Wnts that activate the pathway. The claim extends these liver-specific findings to tissue damage generally, which the cited passages do not establish. (LLM, conf=0.82)

  Experimental — accuracy not yet measured

Probably not a substantial claim: may not pass S3 (load-bearing).

Cholangiocarcinoma and other biliary tract malignancies are frequently associated with overactivation of the Notch and Hedgehog signaling pathways.

“Several studies suggest that cholangiocarcinoma and other biliary tract malignancies are frequently associated with overactivation of the Notch and Hedgehog signaling pathways[61].”

• cites [61] sourcePartly supported

  The “Signalling and molecular networks” section reports aberrant Notch expression in intrahepatic and extrahepatic cholangiocarcinoma. It mentions Hedgehog activation only in ductular reactive cells during liver repair and inflammation, not frequent Hedgehog overactivation in biliary tract malignancies. The section also does not establish how frequently both pathways are overactivated. (LLM, conf=0.86)

  Experimental — accuracy not yet measured

May combine two claims.

MANF interacts with β-catenin to stabilize cytosolic β-catenin and promote its nuclear translocation, enhancing Wnt/β-catenin signaling.

“On the other hand, MANF interacts with β-catenin to stabilize cytosolic β-catenin level and promote its nuclear translocation, which further enhance the Wnt/β-catenin signaling[52].”

• cites [52] sourceSupported

May combine two claims.

The Wnt/β-catenin pathway regulates not only hepatocyte proliferation but also liver metabolism, detoxification, and immune responses.

“Importantly, the Wnt/β-catenin pathway regulates not only hepatocyte proliferation but also liver metabolism, detoxification, and immune responses.”

• cites [49] sourcePartly supported

  The 'Wnt signaling in liver regeneration' section links Wnt/β-catenin signaling to hepatocyte proliferation, and the Concluding remarks identify a role for Wnt signaling in metabolic zonation. The Introduction mentions inflammation in liver disease, but our copy does not establish that Wnt/β-catenin regulates immune responses or detoxification. No page numbers were supplied for these passages. (LLM, conf=0.86)

  Experimental — accuracy not yet measured

May combine two claims.

While diploid hepatocytes dominate the early proliferative response following major hepatectomy, polyploid hepatocytes contribute to regeneration through selective division and hypertrophy, particularly when proliferation is delayed or impaired.

“While diploid hepatocytes have been shown to dominate the early proliferative response following major hepatectomy, polyploid hepatocytes contribute to regeneration through selective division and hypertrophy, particularly under conditions where proliferation is delayed or impaired[80,81].”

• cites [80] sourcePartly supported

  Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

  Experimental — accuracy not yet measured
• cites [81] sourcePartly supported

  Split into 2 atoms — 0 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable, 1 not checked. Expand the claim to see per-atom verdicts.

  Experimental — accuracy not yet measured

May combine two claims.

The glutamine effect on liver mass recovery is attributed to enhanced hepatocyte proliferation, increased amino acid metabolism involving glutamine synthetase, carbamoyl phosphate synthetase 1, and ornithine transaminase, and lipid synthesis activation.

“This effect was attributed to enhanced hepatocyte proliferation, increased amino acid metabolism [Glutamine Synthetase, Carbamoyl Phosphate Synthetase 1, ornithine transaminase (OAT)], and lipid synthesis activation.”

• cites [68] sourceSupported

May combine two claims.

Hepatocytes undergo not only hyperplasia but also hypertrophy during liver regeneration.

“These data prove that hepatocytes undergo not only hyperplasia but also the hypertrophy, which during their proliferation is carried out by the pathway[55].”

• cites [55] sourceSupported

May combine two claims.

After 70% hepatectomy, the number of hepatocytes in the remaining lobes increases 1.6 times and the mass of these lobes increases 2.4 times.

“According to Miyaoka and Miyajima's calculations[55], the number of hepatocytes in the remaining lobes after 70% hepatectomy increases 1.6 times, and the mass of these lobes increases 2.4 times.”

• cites [55] sourceSupported

May combine two claims.

Boundaries between adjacent lobules, including mega-lobules, are widened and filled by connective tissue fibers, giving the liver parenchyma a nodular look.

“The boundaries between the adjacent lobules (including mega-lobules) are widened and filled by connective tissue fibers, which gives the liver parenchyma a nodular look (Figure 3C)[72].”

• cites [72] sourceSupported

May combine two claims.

Polyploidization is implicated in maintaining genomic stability, buffering metabolic demands, and enhancing stress resistance.

“Importantly, polyploidization is not only a form of cellular growth but is also implicated in maintaining genomic stability, buffering metabolic demands, and enhancing stress resistance.”

• cites [80] sourcePartly supported

  The Discussion (page not provided) says extra chromosome copies in polyploid hepatocytes buffer against tumor-suppressor inactivation, supporting a narrower form of genomic protection. It does not say polyploidization buffers metabolic demands or enhances stress resistance. (LLM, conf=0.87)

  Experimental — accuracy not yet measured
• cites [81] sourcePartly supported

  The Introduction (page unavailable) hypothesizes that polyploid hepatocytes may enhance metabolism and be less affected by genotoxic damage; the Discussion (page unavailable) describes stress-adapted, injury-resistant progeny. These passages support possible metabolic and stress-related benefits, but they do not establish that polyploidization buffers metabolic demands or maintains genomic stability. The Discussion also warns that prolonged chromosomal instability may increase cancer risk. (LLM, conf=0.84)

  Experimental — accuracy not yet measured

May combine two claims.

Exogenous cholesterol activates HIF-1α and Nrf-2 pathways, which enhance hepatocyte proliferation and survival.

“The addition of exogenous cholesterol activates Hypoxia-Inducible Factor 1-alpha (HIF-1α) and Nuclear Factor Erythroid 2-Related Factor 2 (Nrf-2) pathways, which enhance hepatocyte proliferation and survival[69].”

• cites [69] sourceSupported

May combine two claims.

Binucleated hepatocytes are commonly detected during liver regeneration, and their presence reflects ongoing mitotic activity not followed by cytokinesis.

“In addition, binucleated hepatocytes are commonly detected during liver regeneration. Their presence reflects ongoing mitotic activity that is not followed by cytokinesis.”

• cites [55] sourcePartly supported

  The section “Cell division of binuclear hepatocytes to produce mononuclear cells” confirms that binuclear hepatocytes are observed during regeneration. But it says their number decreases during regeneration and describes incomplete cytokinesis as a cause of binucleation during liver maturation, not as what their presence indicates during regeneration. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

Liver resection almost always results in mechanical liver tissue damage, including deterioration of extracellular matrix and inflammatory response, and ductular reactions associated with local inflammation and extracellular matrix remodeling in the dissection area are often revealed.

“In clinical surgery, when the liver resection almost always results in mechanical liver tissue damage, including deuteriation of ECM and inflammatory response[2], the DR associated with local inflammation and ECM remodeling in the dissection area, are often revealed[84].”

• cites [2] sourcePartly supported

  Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

  Experimental — accuracy not yet measured
• cites [84] sourcePartly supported

  Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

  Experimental — accuracy not yet measured

May combine two claims.

Bile acids regulate liver growth via FXR and TGR5 receptors, which stimulate hepatocyte division and protect liver tissue from inflammatory damage.

“Bile acids regulate liver growth via the farnesoid X receptor (FXR) and Takeda G-protein-coupled receptor 5 (TGR5) receptors[70], which stimulate hepatocyte division and protect liver tissue from inflammatory damage.”

• cites [70] sourcePartly supported

  The Introduction describes anti-inflammatory effects of FXR and TGR5 signaling and says FXR helps prevent cholestatic liver injury. It does not establish that these receptors regulate liver growth or stimulate hepatocyte division; it also states that TGR5 is not expressed in hepatocytes. No page numbers are available in our copy. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

Cholesterol metabolism and bile acid signaling play key roles in liver regeneration.

“Studies have demonstrated that cholesterol metabolism and bile acid signaling play key roles in LR.”

• cites [69] sourceSupported

May combine two claims.

Glutamine is a critical amino acid involved in energy metabolism and extracellular matrix formation and has been identified as a key regulator of liver regeneration.

“Glutamine (Gln), a critical amino acid, involved in energy metabolism and ECM formation, has been also identified as a key regulator of LR[71].”

• cites [71] sourceCould not verify

  The Results (page unavailable) examine glutamine synthetase activity during rat liver regeneration and report that free glutamine levels in regenerating liver were not significantly different from normal liver. The paper does not establish that glutamine regulates liver regeneration or describe its roles in energy metabolism or extracellular matrix formation; searches for those roles found no supporting passage. (LLM, conf=0.76)

  Experimental — accuracy not yet measured

May combine two claims.

Early postoperative thrombocytopenia is associated with delayed functional recovery and increased complication rates.

“Platelet count dynamics have also emerged as valuable surrogate markers, with early postoperative thrombocytopenia associated with delayed functional recovery and increased complication rates[90,91].”

• cites [90] sourceNot checked — no full text of the source
• cites [91] sourceSupported

May combine two claims.

If regulation of liver regeneration is disrupted, the liver may either fail to regenerate effectively, as seen in cirrhosis, or continue pathological proliferation, increasing the risk of tumor development.

“If this regulation is disrupted, the liver may either fail to regenerate effectively (as seen in cirrhosis) or continue pathological proliferation, increasing the risk of tumor development[94].”

• cites [94] sourcePartly supported

  The Introduction and Section 2 link dysregulated growth-factor signaling to liver cancer and tumor progression. The Introduction also says regeneration is dysregulated in chronically injured liver and that HCC commonly occurs with cirrhosis, but it does not say that cirrhosis causes the liver to fail to regenerate effectively. (LLM, conf=0.85)

  Experimental — accuracy not yet measured

May combine two claims.

Glypican-3 stimulates Hippo signaling and blocks YAP activity; maintaining high levels of GPC3 after liver regeneration prevents uncontrolled hepatocyte proliferation.

“Glypican-3 (GPC3) plays a key role in stopping regeneration, as it stimulates Hippo signaling and blocks YAP activity. Once LR is complete, maintaining high levels of GPC3 prevents uncontrolled hepatocyte proliferation[97].”

• cites [97] sourcePartly supported

  The Results (page unavailable) report reduced nuclear YAP, increased inactive cytoplasmic phosphorylated YAP, and suppressed hepatocyte proliferation in GPC3-overexpressing mice after partial hepatectomy. The Discussion (page unavailable) says the growth-suppressive mechanism remains elusive: the paper does not establish that GPC3 stimulates Hippo signaling or that maintaining high GPC3 after regeneration is complete prevents uncontrolled proliferation. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

After repeat resection of a previously regenerated liver, regeneration is re-initiated using the same mechanisms and continues until liver mass is once again restored.

“Furthermore, if this balance is disrupted again - for example, following a repeat resection of a previously regenerated liver - regeneration is re-initiated using the same mechanisms and continues until liver mass is once again restored, as we have shown in our experimental model[72].”

• cites [72] sourceSupported

May combine two claims.

TGF-β is the primary suppressor of liver regeneration, becoming active when the liver reaches the required mass; its function is to halt the cell cycle and stimulate apoptosis in hepatocytes no longer needed for regeneration.

“TGF-β activation: TGF-β is the primary suppressor of LR, becoming active when the liver reaches the required mass. Its function is to halt the cell cycle and stimulate apoptosis in hepatocytes that are no longer needed for regeneration[95].”

• cites [95] sourcePartly supported

  The section “The TGF-b as a guardian of liver homeostasis” describes TGF-β as an important inhibitory signal during liver regeneration and links its signalling to termination of the regenerative response. The Introduction also describes cytostatic and apoptotic effects in hepatocytes as critical to controlling liver mass. The paper does not establish that TGF-β is the primary suppressor, that it becomes active specifically when the required mass is reached, or that apoptosis selectively removes hepatocytes no longer needed for regeneration. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

Three-dimensional reconstruction confirmed that proliferative bile ducts originated from pre-existing bile ducts, were not connected to hepatocytes, and extended into granulation tissue alongside newly forming blood vessels.

“Three-dimensional reconstruction of histological slides confirmed that proliferative bile ducts originated from pre-existing bile ducts, were not connected to hepatocytes, and extended into the granulation tissue alongside newly forming blood vessels.”

• cites [86] sourceSupported

May combine two claims.

Treatment with the mTORC1 inhibitor rapamycin significantly eliminates bleeding-induced hepatocyte hypertrophy and inhibits cell proliferation.

“This treatment resulted in a significant elimination of bleeding-induced hepatocyte hypertrophy along with inhibition of cell proliferation.”

May combine two claims.

Remodeled lobules, especially mega-lobules with sizes 1000-1200 μm, contain a transformed meshwork of sinusoids, part of which is dilated asymmetrically.

“The remodeled lobules (especially the “mega-lobules” with the sizes 1000-1200 µm) contain the transformed meshwork of the sinusoids, the part of which is dilated asymmetrically.”

May combine two claims.

Analysis of hepatic acinar zones 1 and 3 showed alterations in hepatocyte morphology and size, alongside formation of new intercellular connections, including atypical membrane protrusions between adjacent hepatocytes with altered shapes.

“Analysis of hepatic acinar zones 1st and 3rd showed alterations in hepatocyte morphology and size, alongside the formation of new intercellular connections, including atypical membrane protrusions between adjacent hepatocytes with altered shapes (Figure 2).”

May combine two claims.

In liver tissue studied histologically both after 2 weeks and 6 months from partial hepatectomy, biliary structures were revealed, and their number is greater than in normal livers.

“Interestingly, that in the liver tissue studied histologically (H&E, IHC) both after 2 weeks and 6 months from PH, the biliary structures were revealed. Their number is greater than in normal livers.”

May combine two claims.

Our findings show ductular reaction in granulation tissue surrounding adhesions developed after 2/3 liver resection among adjusted remnant lobes, as well as granulation tissue developed at the edge of the resected lobe.

“Figure 4 represents our findings on DR in the granulation tissue surrounding adhesions developed after 2/3 liver resection among the adjusted remnant lobes as well as granulation tissue developed at the edge of resected lobe.”

May combine two claims.

When no more than 30% of the liver mass is resected, the intrahepatic portal pool is not reduced enough to initiate mitotic activity, but it is sufficient to induce hypertrophic regeneration.

“Conversely, when no more than 30% of the liver mass is resected, the intrahepatic portal pool is not reduced to an extent that would initiate mitotic activity. However, it is sufficient to induce hypertrophic regeneration[5].”

• cites [5] sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

These pathways contribute variably to the proliferation, differentiation, or suppression of hepatic cells.

“which contribute variably to the proliferation, differentiation, or suppression of hepatic cells.”

May combine two claims.

Liver regeneration comprises multiple phases - priming, proliferation, hypertrophy, remodeling, and termination - each governed by overlapping regulatory networks.

“It is now recognized that LR comprises multiple phases — priming, proliferation, hypertrophy, remodeling, and termination — each governed by overlapping regulatory networks.”

May combine two claims.

Hyperplasia-driven regeneration occurs only when a significant portion of liver mass is lost, and is not dependent on the size of the dissection plane.

“Based on this, it is generally accepted that hyperplasia-driven regeneration occurs only when a significant portion of liver mass is lost, and is not dependent on the size of the dissection plane.”

• cites [9] sourceNot checked — no full text of the source

May combine two claims.

The ligand-receptor interaction of TNF-alpha induces the synthesis and mobilization of other cytokines, including IL-6, which further stimulates hepatocyte proliferation through the NF-kB signaling pathway.

“This ligand-receptor interaction induces the synthesis and mobilization of other cytokines, including IL-6, which further stimulates hepatocyte proliferation through the nuclear factor-kappa B (NF-κB) signaling pathway.”

May combine two claims.

TNF-alpha functions via both autocrine and paracrine mechanisms: it binds to TNF receptor 1 in hepatocytes and interacts with TNF receptors on Kupffer cells, triggering a signaling cascade.

“TNF-α functions via both autocrine and paracrine mechanisms: It binds to TNF receptor 1 in hepatocytes; also interacts with TNF receptors on Kupffer cells, triggering a signaling cascade.”

May combine two claims.

Pharmacological reduction of postoperative portal pressure, such as with Terlipressin, prevents hepatocyte necrosis and promotes proliferative activity, ultimately improving survival rates in operated animals.

“Additionally, pharmacological reduction of postoperative portal pressure, such as with Terlipressin, has been shown to prevent hepatocyte necrosis and promote proliferative activity, ultimately improving survival rates in operated animals.”

• cites [9] sourceNot checked — no full text of the source

May combine two claims.

Sato et al found that acute portal hypertension induced by 70% resection enhanced [3H]-thymidine incorporation into hepatocyte DNA, supporting the concept that elevated shear stress serves as a regenerative trigger.

“Similarly, Sato et al[21] found that acute portal hypertension induced by 70% resection enhanced [³H]-thymidine incorporation into hepatocyte DNA, supporting the concept that elevated shear stress serves as a regenerative trigger.”

• cites [21] sourceNot checked — no full text of the source

May combine two claims.

After 70% partial hepatectomy in rats, portal venous pressure rose from 8.4 ± 0.7 to 16.1 ± 1.3 mmHg, which correlated with hepatocyte proliferation observed within 24 hours postoperatively.

“It was reported that after 70% PHx in rats, PVP rose from 8.4 ± 0.7 to 16.1 ± 1.3 mmHg, which correlated with hepatocyte proliferation observed within 24 hours postoperatively[18].”

• cites [18] sourceNot checked — no full text of the source

May combine two claims.

Following 50%-70% partial hepatectomy, portal venous pressure increases significantly from a baseline of approximately 7-8 mmHg to 14-17 mmHg, reflecting increased sinusoidal shear stress that activates regenerative pathways.

“Experimental studies have demonstrated that following 50%–70% partial hepatectomy, the portal venous pressure (PVP) increases significantly—from a baseline of approximately 7–8 mmHg to 14–17 mmHg—reflecting increased sinusoidal shear stress that activates regenerative pathways.”

• cites [18] sourceNot checked — no full text of the source

May combine two claims.

Liver venous deprivation (LVD) induces faster future liver remnant growth and enables earlier liver resection compared to portal vein embolization (PVE) alone.

“Studies have demonstrated that LVD induces faster FLR growth and enables earlier liver resection compared to PVE alone[29-31].”

• cites [29] sourceNot checked — no full text of the source
• cites [30] sourceNot checked — no full text of the source
• cites [31] sourceNot checked — no full text of the source

May combine two claims.

Following partial hepatectomy, portal pressure and blood flow increase, including within the extrahepatic portal pool such as the gastrointestinal tract and splenic veins.

“Following PH, portal pressure and blood flow increase[21], including within the extrahepatic portal pool (e.g., the gastrointestinal tract and splenic veins).”

• cites [21] sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

The liver's response to injury depends not on a conscious aim or decision but on the biochemical and physiological processes triggered by the type and extent of the damage.

“Thus, the liver’s response to injury depends not on a conscious “aim” and “decision” but rather on the biochemical and physiological processes triggered by the type and extent of the damage.”

May combine two claims.

Epidermal growth factor and transforming growth factor-alpha play key roles in hepatocyte proliferation and survival by activating the cell cycle and protecting hepatocytes from a stressful environment.

“Epidermal growth factor and transforming growth factor-alpha play key roles in hepatocyte proliferation and survival. These growth factors activate the cell cycle and protect hepatocytes from a stressful environment, ensuring the continuation of the regenerative process[62].”

• cites [62] sourceNot checked — no full text of the source

May combine two claims.

The use of antibiotics reduces both liver mass recovery and the expression of proliferative markers proliferating cell nuclear antigen and Bromodeoxyuridine (BrdU).

“Research has demonstrated that the use of antibiotics reduces both liver mass recovery and the expression of proliferative markers - proliferating cell nuclear antigen and Bromodeoxyuridine (BrdU).”

• cites [47] sourceNot checked — no full text of the source

May combine two claims.

NF-κB signaling is activated following liver injury and is closely linked to JAK/STAT and PI3K/Akt/mTOR pathways, which regulate hepatocyte proliferation and survival.

“The NF-κB signalling pathway is activated following liver injury and is closely linked to the Janus Kinase/Signal Transducer and Activator of Transcription (JAK/STAT) and phosphoinositide 3-kinase/protein kinase B, PKB/mammalian target of rapamycin pathways, which regulate hepatocyte proliferation and survival mechanisms[53].”

• cites [53] sourceNot checked — no full text of the source

May combine two claims.

The role of Notch signaling in post-resection liver regeneration is relatively limited, because liver mass restoration after resection is primarily driven by proliferation of residual hepatocytes rather than stem cell activation.

“However, its role in post-resection LR is relatively limited, as liver mass restoration after resection is primarily driven by the proliferation of residual hepatocytes rather than stem cell activation[56].”

• cites [56] sourceNot checked — no full text of the source

May combine two claims.

NF-κB signaling is essential for protecting hepatocytes from excessive damage and ensuring a rapid regenerative response.

“This signalling pathway is essential for protecting hepatocytes from excessive damage and ensuring a rapid regenerative response.”

May combine two claims.

Ploidy is known to increase after partial hepatectomy, supporting Fausto's opinion.

“However, ploidy is known to increase after PH. These results support the opinion of Fausto[83] presented the decades ago.”

• cites [83] sourceNot checked — no full text of the source

May combine two claims.

Early swelling of hepatocytes represents a biophysical trigger that activates downstream proliferative genes and drives cells from G0/G1 into S phase.

“These changes overlap with early swelling of the hepatocytes which represent a biophysical trigger that activates downstream proliferative genes and drives cells from the G0/G1 phase into the S-phase of the cell cycle.”

May combine two claims.

Multiple signaling pathways and mechanisms are involved in liver regeneration and act in a coordinated manner to ensure timely liver recovery and maintain functional balance.

“All of the above demonstrates that multiple signaling pathways and mechanisms are involved in LR. At the same time, they all act in a coordinated manner to ensure timely liver recovery and maintain the functional balance of the organism.”

May combine two claims.

Following 75% liver resection, pH decreases in the hepatic artery from 7.377 to 7.322, in the portal vein from 7.325 to 7.273, in the carotid artery from 7.381 to 7.335, and in the jugular vein from 7.335 to 7.288.

“Studies dedicated to Small-for-Size liver resection and Flow Syndrome showed that following 75% liver resection, a decrease in pH was observed not only in the hepatic artery (from 7.377 to 7.322) and in the portal vein (from 7.325 to 7.273 in the case of), but also in the systemic circulation — in the carotid artery (from 7.381 to 7.335) and in the jugular vein (from 7.335 to 7.288).”

• cites [77] sourceNot checked — no full text of the source

May combine two claims.

In disease models characterized by development of a ductal reaction, partial hepatectomy is not included, suggesting that ductular reactions are neglected in post-resectional liver regeneration.

“However, when considering disease models characterized by the development of a ductal reaction, PH is not included[74] suggesting that DRs are neglected in the process of post-resectional LR.”

• cites [74] sourceNot checked — no full text of the source

May combine two claims.

Extracellular matrix remodeling is a critical factor in amplification of ductular reactions and provides the structural framework necessary for ductular reactions and tissue repair.

“ECM remodeling is also a critical factor in the amplification of DRs. These findings indicate that ECM remodeling provides the structural framework necessary for DRs and tissue repair mechanisms.”

• cites [85] sourceNot checked — no full text of the source

May combine two claims.

Ductular reactions are a crucial component of liver regeneration, regulated by inflammatory cytokines and extracellular matrix remodeling.

“Overall, DRs are a crucial component of LR, regulated by inflammatory cytokines and ECM remodeling.”

May combine two claims.

Mechanical cues such as portal pressure changes and shear stress, as well as metabolic signals from bile acids, cholesterol, and glutamine, modulate regenerative pathways.

“Recent insights highlight the importance of mechanical cues such as portal pressure changes and shear stress, as well as metabolic signals from bile acids, cholesterol, and glutamine in modulating regenerative pathways.”

May combine two claims.

Wnt/β-catenin activity increases during liver regeneration; once the liver attains its required size, β-catenin levels decrease, facilitating cell cycle arrest, and this pathway plays a critical role in regulating liver mass and hemodynamics.

“Wnt/β-catenin pathway activation: Wnt/β-catenin activity increases during regeneration; however, once the liver attains its required size, β-catenin levels decrease, which facilitates cell cycle arrest. This pathway plays a critical role in regulating liver mass and hemodynamics.”

Probably not a substantial claim: may not pass S4 (based).

Even mTOR inhibitors, which strongly suppress cell proliferation, cannot completely halt regeneration alone, but merely slow it down.

“However, even mTOR inhibitors, which strongly suppress cell proliferation, cannot completely halt regeneration alone, but merely slow it down.”

May combine two claims.

Termination is reinforced by TGF-β, Hippo-YAP, and Wnt/β-catenin downregulation, which inhibit proliferation and promote return to hepatocyte quiescence once sufficient liver mass has been restored.

“Termination is reinforced by TGF-β, Hippo-YAP, and Wnt/β-catenin downregulation, which inhibit proliferation and promote return to hepatocyte quiescence once sufficient liver mass has been restored.”

May combine two claims.

Piezo1 via the PKC/ERK1/2 signaling axis upregulates the secretion of AREG and EREG, which activates EGFR signaling in hepatocytes, driving their proliferation.

“Piezo1 via the PKC/ERK1/2 signaling axis upregulates the secretion of AREG and EREG which activates EGFR signaling in hepatocytes driving their proliferation (Figure 5).”

• AssumptionRests on an assumption: Piezo1 is highly expressed in vascular endothelial cells after major liver resection.

May combine two claims.

Ductular reactions were absent 24 hours after a 20%-30% resection, suggesting that liver progenitor cell activation occurs later than initiation of hepatocyte proliferation in standard partial hepatectomy (66%-70%) models.

“Interestingly, these DRs were absent 24 hours after a 20%–30% resection, suggesting that LPC activation occurs later than the initiation of hepatocyte proliferation in standard PH (66%-70%) models.”

• cites [85] sourceNot checked — no full text of the source

May combine two claims.

Hippo signaling is activated when the liver reaches normal size, suppressing YAP activity and reducing cell proliferation; YAP inhibition is one of the main mechanisms terminating liver regeneration.

“Hippo-YAP signaling pathway: Hippo signaling is activated when the liver reaches its normal size, suppressing YAP activity and thereby reducing cell proliferation. YAP inhibition is one of the main mechanisms terminating LR[96].”

• cites [96] sourceNot checked — no full text of the source

May combine two claims.

Termination of hepatocyte proliferation is not equivalent to termination of liver regeneration; lobular remodeling and functional re-equilibration may continue for weeks to months.

“However, it should be noted that termination of proliferation does not equal termination of regeneration, as lobular remodeling and functional re-equilibration may continue for weeks to months.”

May combine two claims.

Quantitative liver function tests such as the galactose elimination capacity and the 13C-methacetin breath test allow real-time evaluation of enzymatic function and correlate with hepatocellular metabolic integrity.

“Quantitative liver function tests such as the galactose elimination capacity and the 13C-methacetin breath test allow real-time evaluation of enzymatic function and correlate with hepatocellular metabolic integrity[88,89].”

• cites [88] sourceNot checked — no full text of the source
• cites [89] sourceNot checked — no full text of the source

May combine two claims.

Although biochemical markers may return to baseline within 7-10 days postoperatively, full functional recovery may extend over 90 to 180 days.

“These tests have demonstrated that although biochemical markers may return to baseline within 7-10 days postoperatively, full functional recovery may extend over 90 to 180 days.”

• cites [88] sourceNot checked — no full text of the source
• cites [89] sourceNot checked — no full text of the source

May combine two claims.

Several interrelated regulatory systems are believed to contribute to termination of liver regeneration: portal hemodynamic normalization, activation of inhibitory signaling pathways, metabolic feedback mechanisms, and spatiotemporal reorganization of lobular spatial architecture.

“Although there is no single mechanism that fully explains this phenomenon, several interrelated regulatory systems are believed to contribute. They are: Portal hemodynamic normalization; activation of inhibitory signaling pathways; metabolic feedback mechanisms (restoration of liver metabolic function); spatiotemporal reorganization of lobular spatial architecture.”

May combine two claims.

Termination of liver regeneration after partial hepatectomy occurs through several mechanisms; regeneration does not cease abruptly but follows a regulated sequence coinciding with normalization of portal pressure and blood flow.

“Currently, it is believed that termination of LR after PH, when liver mass returns to normal, occurs through several mechanisms: LR does not cease abruptly but rather follows a regulated sequence, coinciding with the normalization of portal pressure and blood flow.”

May combine two claims.

Liver regeneration following partial hepatectomy is a dynamic, multifactorial process governed by portal hemodynamics, cytokine signaling, metabolic reprogramming, ECM remodeling, and hepatocyte proliferation, hypertrophy, and polyploidization.

“Taking all the above into account, it can be concluded that LR following PH is a dynamic, multifactorial process governed by portal hemodynamics, cytokine signaling, metabolic reprogramming, ECM remodeling, and hepatocyte proliferation, hypertrophy, and polyploidization.”