Intra-arterial Alteplase Thrombolysis After Successful Thrombectomy for Acute Ischemic Stroke in the Posterior Circulation (IAT-TOP): Study Protocol and Rationale.

Rationale: The Chemical Optimization of Cerebral Embolectomy (CHOICE) trial suggested that the administration of intra-arterial alteplase after successful endovascular thrombectomy (EVT) may improve neurological outcomes in patients with acute ischemic stroke due to large vessel occlusion (AIS-LVO) in the anterior circulation. However, the use of adjunctive intra-arterial alteplase following successful EVT in acute posterior circulation stroke remains unexplored.

Aims: This study aims to investigate the efficacy and safety of intra-arterial alteplase after successful EVT for AIS-LVO in the posterior circulation.

Genetic Causal Association Between Skin Microbiota and Biological Aging: Evidence From a Mendelian Randomization Analysis.

Background: The skin microbiota, a complex community of microorganisms residing on the skin, plays a crucial role in maintaining skin health and overall homeostasis. Recent research has suggested that alterations in the composition and function of the skin microbiota may influence the aging process. However, the causal relationships between specific skin microbiota and biological aging remain unclear.

KDM6A facilitates Xist upregulation at the onset of X inactivation.

Background: X chromosome inactivation (XCI) is a female-specific process in which one X chromosome is silenced to balance X-linked gene expression between the sexes. XCI is initiated in early development by upregulation of the lncRNA Xist on the future inactive X (Xi). A subset of X-linked genes escape silencing and thus have higher expression in females, suggesting female-specific functions.

Orthogonal RNA replication enables directed evolution and Darwinian adaptation in mammalian cells.

Directed evolution in mammalian cells offers a powerful approach for advancing synthetic biology applications. However, existing mammalian-based directed evolution methods face substantial bottlenecks, including host genome interference, small library size and uncontrolled mutagenesis. Here we engineered an orthogonal alphaviral RNA replication system to evolve RNA-based devices, enabling RNA replicase-assisted continuous evolution (REPLACE) in proliferating mammalian cells.

Development of a novel ICT-ESIPT-based NIR ratiometric fluorescent probe for specific detection of Hg in the environment and living organisms.

As a heavy metal contaminant, mercury ion (Hg) has caused great harm to environment and life. Mercury ions will migrate and transform in the environment and eventually accumulate in the human body, thus causing human poisoning. Therefore, it is of great significance to detect Hg in the environment and living bodies.