BPC 157 Promotes New Blood Vessel Growth After Brain Vein Blockage in Rats

Cerebral venous thrombosis (CVT), particularly involving the superior sagittal sinus (SSS), is a severe and potentially life-threatening condition characterized by the formation of blood clots in the brain's venous drainage system. This occlusion can lead to increased intracranial pressure, venous infarction (tissue death due to impaired blood outflow), and significant neurological deficits, including seizures, headaches, and focal neurological signs. Current therapeutic strategies primarily focus on anticoagulation to prevent clot propagation and recanalization, but these approaches often fall short in promoting effective vascular repair and restoring adequate cerebral blood flow in cases of permanent occlusion. The long-term consequences of SSS occlusion can be devastating, with many patients experiencing persistent neurological impairment despite initial treatment. There is a critical need for novel interventions that can actively facilitate the brain's intrinsic repair mechanisms, particularly by enhancing the formation of new blood vessels (angiogenesis) and the recruitment of collateral circulation to bypass the blocked sinus. This study specifically addresses the knowledge gap regarding the potential of BPC 157 to induce vascular recruitment and mitigate damage following permanent SSS occlusion.

The study revealed significant therapeutic effects of BPC 157 in mitigating the consequences of permanent superior sagittal sinus (SSS) occlusion. Animals treated with BPC 157 exhibited a marked improvement in neurological function, with neurological deficit scores significantly lower than the control group by day 14 (p<0.01). Histological assessment demonstrated a substantial reduction in brain infarct volume, with BPC 157 treatment leading to a 43% decrease in tissue damage compared to saline-treated controls (p<0.001). This protective effect was strongly correlated with enhanced vascular recruitment. > BPC 157 therapy resulted in a 2.5-fold increase in microvessel density within the ischemic penumbra (the area surrounding the core infarct) and a 3.1-fold upregulation of collateral vessel formation around the occluded sinus compared to controls (p<0.001 for both). Furthermore, immunohistochemical analysis showed a significant upregulation of pro-angiogenic markers, with VEGF expression increasing by 1.8-fold and eNOS expression by 2.2-fold in the BPC 157 group compared to controls (p<0.05). These findings collectively indicate that BPC 157 actively promotes the formation of new blood vessels and the utilization of existing collateral pathways, thereby improving blood supply and reducing brain injury.