Central University of Punjab

Integrated source apportionment and geochemical background assessment of organic and inorganic components in Amazonian upland lakes: insights from an extensive basin-wide geochemical database

Abstract Purpose This study established reliable natural geochemical backgrounds for Amazonian upland lakes and evaluated how lateritic catchment materials are transferred and transformed in lake sediments across Carajás, Araguaia, and Xingu. Methods Ferruginous duricrusts and la...

Neuroprotective effect of normal and modified mesenchymal stem cell‐derived exosomes by mitigating Alzheimer's‐related oxidative and inflammatory damage via Nrf2/HO‐1 in SH‐SY5Y cells

Abstract Exosome therapy is emerging as a promising neuroprotective strategy for Alzheimer's disease (AD). We evaluated and compared whether normal exosomes (NE) and modified exosomes (ME) derived from AD rat brain extract‐treated rat bone marrow mesenchymal stem cells possess th...

Foreign body–associated maxillary sinus aspergillosis caused by Endomethasone extrusion: diagnostic challenges, biological mechanisms, and surgical management

Extrusion of endodontic sealers into the maxillary sinus is an uncommon but clinically significant complication, particularly when biologically active zinc oxide–eugenol–based materials are involved. Their persistence within the sinus may impair mucociliary clearance and sustain...