Wileidy Gómez

Abstract The core pathological hallmark of Parkinson’s disease (PD) is the progressive degeneration of dopaminergic (DAergic) neurons in the substantia nigra pars compacta (SNpc), driven by misfolding and aggregation of a-synuclein (aSyn) into Lewy bodies. This triggers severe cellular dysfunction, including endoplasmic reticulum (ER) stress and the dysregulation of the unfolded protein response (UPR). TMBIM6, an anti-apoptotic ER protein, inhibits the UPR sensor IRE1a.

Abstract Aging is closely associated with cardiovascular diseases, the leading cause of mortality worldwide. Mitochondrial dysfunction is a hallmark of cardiovascular aging because it generates most of the heart's ATP at the cristae, specialized sub-compartments where OXPHOS takes place. In this study, we used multiple-scale electron microscopy approaches to evaluate age-related mitochondrial and cristae ultrastructural alterations in human and mouse hearts.

Even though tropical glaciers are retreating rapidly and many will disappear in the next few years, their microbial diversity remains to be studied in depth. In this paper we report on the biodiversity of the culturable fraction of bacteria colonizing Pico Bolívar’s glacier ice and subglacial meltwaters, at ?4950 m in the Venezuelan Andean Mountains.