ST6GAL1-Mediated Sialylation of PECAM-1 Promotes a Transcellular Diapedesis-Like Process that Directs Lung Tropism of Metastatic Breast Cancer.

Metastasis is the leading cause of mortality in breast cancer, with lung metastasis being particularly detrimental. Identification of the processes determining metastatic organotropism could enable the development of approaches to prevent and treat breast cancer metastasis. Here, we found that lung-tropic and non-lung-tropic breast cancer cells differ in their response to sialic acids, affecting the sialylation of surface proteins.

New Insights into the Role of SGLT-2 Inhibitors in the Prevention of Dementia.

Diabetes mellitus (DM) is a chronic disease associated with numerous complications, including cardiovascular diseases, nephropathy, and neuropathy. Sodium-glucose cotransporter 2 (SGLT-2) inhibitors, a class of novel antidiabetic agents, have demonstrated promising therapeutic effects beyond glycemic control, with potential benefits extending to the cardiovascular and renal systems. Recently, research has increasingly focused on exploring the potential role of SGLT-2 inhibitors in preventing dementia.

Stanford Type A Aortic Dissection Masquerading as Acute Ischemic Stroke: A Case Report.

Aortic dissection (AD), a life-threatening cardiovascular emergency, is characterized by the separation of the aorta's inner and middle layers due to a tear in the intima. It is classified as Stanford type A or B based on the tear's location and extent. Symptoms vary but commonly include severe pain in the chest, back, or abdomen, along with atypical presentations such as shock, heart failure, or syncope.

Author Correction: Ago2/CAV1 interaction potentiates metastasis via controlling Ago2 localization and miRNA action.

[Image: see text]

Ago2/CAV1 interaction potentiates metastasis via controlling Ago2 localization and miRNA action.

Ago2 differentially regulates oncogenic and tumor-suppressive miRNAs in cancer cells. This discrepancy suggests a secondary event regulating Ago2/miRNA action in a context-dependent manner. We show here that a positive charge of Ago2 K212, that is preserved by SIR2-mediated Ago2 deacetylation in cancer cells, is responsible for the direct interaction between Ago2 and Caveolin-1 (CAV1).

Erythropoietin relieves neuronal apoptosis in epilepsy rats via TGF-β/Smad signaling pathway.

This study aimed to investigate the influence of recombinant human erythropoietin (rHuEPO) on pentylenetetrazol (PTZ)-induced neuronal apoptosis in epilepsy rats, and to explore the signaling pathways related to the action. Healthy Sprague-Dawley rats aged 8 weeks old were randomly divided into 5 groups, namely, control group, PTZ model group, PTZ + rHuEPO intervention group, PTZ + SB431542 + rHuEPO intervention group and PTZ + SB431542 (TGF-β/Smad inhibitor) intervention group. The expressions of apoptotic proteins [tumor necrosis factor receptor 1 (TNFR1) and caspase-3] and the transforming growth factor-beta (TGF-β)/Smad signaling pathway-related proteins [phosphorylated smad3 (p-smad3) and TGF-β1] in the brain tissues were determined via Western blotting (WB).

Association between Blood Manganese Levels and Visceral Adipose Tissue in the United States: A Population-Based Study.

Background: Manganese (Mn) is an essential trace element with a narrow toxic margin for human health. The association between Mn exposure and adverse visceral adipose tissue (VAT) accumulation is unclear. Objective: This study aimed to estimate the associations of blood Mn levels with VAT mass or visceral obesity in the general population in the United States.

Increased rapid eye movement density in Chinese patients with Parkinson's disease and RBD.

Objective: Impaired rapid eye movement sleep is common among patients with Parkinson's disease (PD). However, information on rapid eye movement density (REM) among PD patients is currently lacking. The current study sought to characterize REM density in PD patients and to examine the associations between REM density sleep parameters and clinical manifestations.

Leptin protects brain from ischemia/reperfusion-induced infarction by stabilizing the blood-brain barrier to block brain infiltration by the blood-borne neutrophils.

The cellular and molecular mechanisms underlying leptin-mediated brain protection against cerebral ischemia were investigated at the blood-brain barrier (BBB) and neutrophil level. Through the ischemia/reperfusion (I/R) animal model, we found that leptin expression level was significantly decreased in ischemic hemisphere. Brain injection with leptin (15 μg/kg, intracisternally) could block the I/R-increased BBB permeability, activation of matrix metallopeptidase 9 (MMP-9) and brain infiltration of blood-borne neutrophils to reduce the infarct volume of ischemic brain.

Depression and associated factors in nondemented Chinese patients with Parkinson's disease.

Objectives: Depression is more common in Parkinson's disease (PD) than other chronic and disabling disorders. This study aimed to estimate the prevalence and identify potential risk factors influencing depression in 519 consecutive nondemented Chinese PD patients.

Patients And Methods: Depression was assessed using the Hamilton Rating Scale for Depression (HAMD), PD severity was assessed using Hoehn and Yahr (H&Y) staging, motor symptoms were measured with the Unified PD Rating Scale (UPDRS) part III, and the Non-Motor Symptoms Questionnaire (NMS-Quest) was used to evaluate the global non-motor symptoms (NMS).

Resting State fMRI Reveals Increased Subthalamic Nucleus and Sensorimotor Cortex Connectivity in Patients with Parkinson's Disease under Medication.

Functional connectivity (FC) between the subthalamic nucleus (STN) and the sensorimotor cortex is increased in off-medication patients with Parkinson's disease (PD). However, the status of FC between STN and sensorimotor cortex in on-medication PD patients remains unclear. In this study, resting state functional magnetic resonance imaging was employed on 31 patients with PD under medication and 31 healthy controls.

Prevalence and risk factors for visual hallucinations in Chinese patients with Parkinson's disease.

Background And Purpose: Parkinson's disease (PD) patients frequently present visual hallucinations (VHs)·The determinants of VHs in Chinese PD patients remain largely unknown. The aim of this study was to illuminate the prevalence and clinical correlates of VHs in the Chinese population with PD.

Methods: A total of 371 consecutive, idiopathic PD patients were recruited into the study.