Biomarkers.

Background: Normal cognitive function is supported by the neuromodulatory mechanisms of the cholinergic system. In Parkinson's disease (PD), histological and molecular imaging evidence suggests disruption to cholinergic circuitry is associated with progression to Parkinson's disease dementia (PDD). The primary source of cortical cholinergic input is the Ch4 region of the basal forebrain.

In situ formed reactive oxygen species-responsive dipyridamole prodrug hydrogel: Spatiotemporal drug delivery for chemoimmunotherapy.

In the realm of combined cancer immunotherapy, the strategic combination of therapeutics targeting both cancer cells and macrophages holds immense potential. However, the major challenges remain on how to achieve facile spatiotemporal delivery of these therapies, allowing ease of manipulation and ensuring differential drug release for enhanced synergistic therapeutic effects. In the present study, we introduced a tumor microenvironment (TME)-adapted hydrogel with the phenylboronic acid-modified dipyridamole prodrug (DIPP) as a crosslinker.

Reirradiation in head and neck squamous cell carcinoma; prognostic indicators, oncologic and functional outcomes.

Objectives: Patients with recurrent squamous cell carcinoma of the head and neck (HNSCC) have a poor prognosis and limited therapeutic alternatives. While reirradiation is feasible, it is usually associated with high treatment toxicity and is not yet considered the standard of care. Based on current NCCN guidelines, in the context of very advanced head and neck cancer (recurrent and/or persistent disease), surgical intervention is explored initially with/without adjuvants while unresectable disease is approached with radiation and/or systemic therapies.