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@mapjournals.bsky.socialOct 7, 2026, 6:29 PM

#VNS
Baseline epiretinal macrophage-like cell density on OCTA predicts anti-VEGF treatment outcomes in branch retinal vein occlusion.
Details: https://www.maxapress.com/article/doi/10.48130/vns-0026-0037
#BRVO #AntiVEGF #OCTA

@ismaileyesurgery.bsky.socialOct 5, 2026, 11:52 AM

@#WetAMD #AMD #CNV #AntiVEGF #Ophthalmology

@alicefrolov.bsky.socialOct 2, 2026, 5:01 PM

The Vascular Normalization Window in Anti-VEGF Therapy

I am sharing a figure intended to communicate the transient nature of vascular normalization.

#TumorAngiogenesis #VascularNormalization #AntiVEGF #TumorMicroenvironment #Pericytes #TumorVasculature #AntiangiogenicTherapy #CancerBiology

The Vascular Normalization Window in Anti-VEGF Therapy I am sharing a figure intended to communicate the transient nature of vascular normalization during anti-angiogenic treatment, a concept that continues to shape dosing and combination strategy discussions. I want to emphasize at the outset that the underlying data are simulated; the curves are constructed to reproduce trends reported across the preclinical and clinical literature rather than to present novel measurements. The plot is a temporal contour band plot rendering two opposing envelopes against time following VEGF pathway blockade. The first envelope tracks pericyte coverage of the tumor microvasculature, expressed as fractional NG2/PDGFRβ-positive perivascular investment, which rises as VEGF withdrawal reduces the destabilizing pressure on nascent endothelium. The second envelope tracks microvessel density, which declines as immature, poorly perfused vessels regress. The shaded intersection identifies the normalization window, the interval during which pericyte recruitment and basement membrane maturation restore a more physiologically competent vascular phenotype before pruning progresses toward frank hypovascularity. Within this window the figure annotates the functional correlates that motivate combination scheduling: reduced interstitial fluid pressure, attenuated hypoxia, improved oxygen and drug delivery, and partial restoration of endothelial barrier integrity. The band widths encode illustrative uncertainty, reflecting the heterogeneity in window timing and duration observed across tumor models and dosing regimens. The mechanistic argument the figure supports is that therapeutic benefit from normalization is inherently self-limiting. Sustained or excessive VEGF inhibition drives the system past the window into a hypoxic, treatment-resistant state, whereas appropriately timed cytotoxic or immunotherapeutic delivery may exploit the transient perfusion gain.