Snapshot 14 September 2026

Diabetic Peripheral Neuropathy Mechanism Explorer

How might diabetes damage the small sensory fibers that supply the skin? This explorer brings together proposed mechanisms, the claims each one depends on, and the evidence behind our current judgments.

This site may be updated at any time. It is primarily a resource for knowledge organization used by the Center for the Study of Systems Biology at Georgia Tech, but has been made public in case other researchers or their AI agents find it useful as a starting point for DPN research.

By Brice Edelman and Jeffrey Skolnick
Created using GPT-6 Astra

Explore the mechanisms

The probability expresses confidence that the mechanism meets its stated causal criteria: by default, that selectively preventing it would avert at least 20% of five-year net terminal loss in a subgroup accounting for at least 10% of new DPN cases under reference care. IT IS NOT AN EFFECT SIZE.
(Think of it like a Polymarket price for if you were wagering whether the mechanism would meet that criteria in an ideal-world experiment)

Glucose chemistry and exposure

Glucose chemistry and exposure. Probabilities in percent.
01Polyol metabolismGlucose chemistry and exposure 21.1%2.3%55.2%
02Glucosamine and hexosamine stressGlucose chemistry and exposure 5.4%0.13%38.1%
03Extracellular matrix glycationGlucose chemistry and exposure 15.5%0.82%55.2%
04RAGE signalingGlucose chemistry and exposure 9.4%0.3%43.2%
05Methylglyoxal and carbonyl stressGlucose chemistry and exposure 10.2%0.53%45.5%
06Glucose overload and mitochondrial superoxideGlucose chemistry and exposure 4.5%0.06%37.6%
40Persistent regulatory memoryAfter exposure improvesGlucose chemistry and exposure 3.3%0.09%30.6%
42Glycemic variabilityGlucose chemistry and exposure 11.5%0.72%45.4%

Lipids and trophic support

Lipids and trophic support. Probabilities in percent.
08Fatty-acid deliveryLipids and trophic support 12.4%0.41%55.8%
09Oxidized LDLLipids and trophic support 4.5%0.06%41.8%
10DeoxysphingolipidsLipids and trophic support 19.2%0.95%65.6%
11Canonical ceramidesLipids and trophic support 10.8%0.38%55.3%
12Insulin and IGF supportLipids and trophic support 15.2%0.68%58.5%
13C-peptide deficiencyType 1 diabetesLipids and trophic support 18.6%1.4%64%
14NGF and TrkA supportLipids and trophic support 16.1%0.75%61.8%
43Protective lipid deficiencyLipids and trophic support 11.6%0.66%43.4%
45Amylin aggregationLipids and trophic support 20.3%1%55.1%

Blood supply, supporting cells, and repair

Blood supply, supporting cells, and repair. Probabilities in percent.
15Microvascular oxygen and fuel supplyBlood supply, supporting cells, and repair 15.4%0.47%65.8%
16Vascular PKC signalingBlood supply, supporting cells, and repair 5.1%0.02%47.5%
17Schwann-cell metabolic supportBlood supply, supporting cells, and repair 13.2%0.36%62.3%
18Glial mitochondrial transferBlood supply, supporting cells, and repair 7.9%0.09%52.3%
19TNF and TLR4 inflammationBlood supply, supporting cells, and repair 19.2%0.81%69.3%
20Protective macrophage functionBlood supply, supporting cells, and repair 7.9%0.19%52%
22Complement-mediated injuryBlood supply, supporting cells, and repair 8.4%0.14%55.8%
32The skin repair environmentBlood supply, supporting cells, and repair 16%0.84%62.1%
33Senescence-like cell statesBlood supply, supporting cells, and repair 9.8%0.13%62.3%
34Microbiome-derived exposuresBlood supply, supporting cells, and repair 8%0.12%58.9%
36Compression and mechanical injuryBlood supply, supporting cells, and repair 6.5%0.06%52.3%
44Intrinsic limits on axon regrowthRepair in established DPNBlood supply, supporting cells, and repair 19%1.6%55.3%

Cell maintenance and injury

Cell maintenance and injury. Probabilities in percent.
07Insufficient axonal energyCell maintenance and injury 33.8%4.1%77.2%
21Inflammasomes and pyroptosisCell maintenance and injury 6.3%0.08%55.8%
23Endoplasmic reticulum stressCell maintenance and injury 16.3%0.63%65.4%
24Autophagy and mitophagyCell maintenance and injury 10.7%0.34%55.3%
25Mitochondrial dynamicsCell maintenance and injury 16.3%0.63%62%
26Axonal transportCell maintenance and injury 14.3%0.37%62.3%
27SARM1 axon destructionCell maintenance and injury 36%2.5%77.2%
28PARP and NAD depletionCell maintenance and injury 23.9%1.5%65.4%
29Ferroptotic injuryCell maintenance and injury 7.6%0.09%47.1%
30Sensory-neuron cell-body apoptosisCell maintenance and injury 8.3%0.13%51.8%
31Excitability and cation loadingCell maintenance and injury 13.7%0.47%62%
39Oxidative and nitrosative injuryCell maintenance and injury 37.6%6.1%72.9%

Treatment and comorbidity exposures

Treatment and comorbidity exposures. Probabilities in percent.
35Rapid glycemic correctionPost-correction neuropathy · Six monthsTreatment and comorbidity exposures 16%0.39%62.1%
37Metformin-associated B12 deficiencyLong-term metformin · Onset or progressionTreatment and comorbidity exposures 18.5%0.54%68.6%
38Kidney failure and uremic exposureAdvanced kidney disease · Onset or progressionTreatment and comorbidity exposures 23.9%0.68%68.6%
41Hypoglycemic energy failureDeep or sustained hypoglycemiaTreatment and comorbidity exposures 18.2%1.4%51.7%

For agents

Start with the JSON index, then read a report’s complete Markdown or structured claims. The full causal proposition, evidence, and qualifications are preserved alongside the concise reading view. All files are directly accessible without JavaScript.

How to cite this

Edelman, Brice, and Jeffrey Skolnick (2026). Diabetic Peripheral Neuropathy Mechanism Explorer. Snapshot 14 September 2026. Page permalink.

Include your access date when citing this evolving resource. BibTeX for the collection. For a study’s findings, also cite the original paper linked in the report.