[photon12]

Here's an interesting paper that looks at blood plasma protein contents and uses bioinformatics processes including learned models to identify plausible biofeedback pathways responsible for protein concentrations deviated from baseline. It's not what you are asking for, but it's the closest thing I've seen to date:

Plasma Proteome of Long-covid Patients Indicates Hypoxia-mediated Vasculo-proliferative Disease With Impact on Brain and Heart Function (Preprint)

https://assets.researchsquare.com/files/rs-2448315/v1/8043bd...

An excerpt:

> In Fig. 7A, hierarchical clustering heatmaps reflect the levels of neurological markers across the patient groups (markers have been curated by OLINK). The values of the PEA expression levels were hierarchically clustered based on Pearson correlation algorithms. Markers selected through the above methodology were investigated for functional annotation using tools from the GSEA platform and MSigDB data positories (Fig. 7B). This latest analysis demonstrated that functional clusters were formed around leukocyte migration, positive immune signals, glial cell differentiation, neurogenesis and MAPK regulatory modules. Taken together, these pathways predict a possible brain-blood barrier dysfunctionality grounded on cell proliferation. Graphs in Fig. 7C illustrate the expression levels of individual markers from the functional groups presented in Fig. 7B. One of the highly expressed markers, was the amyloid precursor protein (APP; Supplementary Fig. 10) which is known to be a pathognomonic marker for both Alzheimer disease and brain inflammation [61–65]. Additional markers for brain dysfunction include JAM2 (endothelial tight junctions protein), SNAPIN (a mediator of neuronal autophagy-lysosomal function in developing neurons), KCNH2 (potassium channel), S100A14 (involved in cell motility adhesion and growth), KIAA0319 (language impairment biomarker), and IROR1 (a receptor tyrosine kinase like orphan receptor 1, which regulates neurites growth in the central nervous system having also WNT-signaling pathway functions, and being crucial for the auditive apparatus maintenance).