Biomedicina: Envíos recientes
Mostrando ítems 381-400 de 779
Altered blood gene expression of tumor-related genes (PRKCB, BECN1 and CDKN2A) in Alzheimer's disease
Alzheimer's disease (AD) is the most common of the neurodegenerative diseases. Recent diagnostic criteria have defined a preclinical disease phase during which neuropathological substrates are thought to be present in the ...
Greater default-mode network abnormalities compared to high order visual processing systems in Amnestic Mild Cognitive Impairment. An integrated multi-modal MRI study.
We conducted an integrated multi-modal magnetic resonance imaging (MRI) study based on functional MRI (fMRI) data during a complex but cognitively preserved visual task in 15 amnestic mild cognitive impairment (a-MCI) ...
Cyclin-dependent kinases 4 and 6 control tumor progression and direct glucose oxidation in the pentose cycle
Cyclin-dependent kinases CDK4 and CDK6 are essential for the control of the cell cycle through the G1 phase. Aberrant expression of CDK4 and CDK6 is a hall- mark of cancer, which would suggest that CDK4 and CDK6 are ...
Nuclear IMPDH2 controls the DNA damage response by modulating PARP1 activity
Nuclear metabolism and DNA damage response are intertwined processes, but the precise molecular links remain elusive. Here, we explore this crosstalk using triple-negative breast cancer (TNBC) as a model, a subtype often ...
Specific small-RNA signatures in the amygdala at premotor and motor stages of Parkinson's disease revealed by deep sequencing analysis
Motivation: Most computational tools for small non-coding RNAs (sRNA) sequencing data analysis focus in microRNAs (miRNAs), overlooking other types of sRNAs that show multi-mapping hits. Here, we have developed a pipeline ...
Control of cell-cell forces and collective cell dynamics by the intercellular adhesome
Dynamics of epithelial tissues determine key processes in development, tissue healing and cancer invasion. These processes are critically influenced by cell-cell adhesion forces. However, the identity of the proteins that ...
Neuropsychological Impairment in Post-COVID condition individuals with and without cognitive complaints
One of the most prevalent symptoms of post-COVID condition is cognitive impairment, which results in a significant degree of disability and low quality of life. In studies with large sample sizes, attention, memory, and ...
Les neurotrofines en el Sistema Nerviós Central: Efectes neuroprotectors i implicacions
La formació de les connexions i 1'estabilització dels circuits neuronals són crítiques en el desenvolupament del sistema nerviós, ja que són la base de les seves funcions, com són 1'aprenentatge i la memòria. Durant el ...
PCAF regulates the stability of the transcriptional regulator and cyclin-dependent kinase inhibitor p27Kip1
P27(Kip1) (p27) is a member of the Cip/Kip family of cyclin-dependent kinase inhibitors. Recently, a new function of p27 as transcriptional regulator has been reported. It has been shown that p27 regulates the expression ...
Mechanical regulation of a molecular clutch defines force transmission and transduction in response to matrix rigidity
Cell function depends on tissue rigidity, which cells probe by applying and transmitting forces to their extracellular matrix, and then transducing them into biochemical signals. Here we show that in response to matrix ...
Postsystolic thickening is a potential new clinical sign of injured myocardium in marfan syndrome.
The mechanisms leading to cardiac remodeling in Marfan syndrome (MFS) are a matter of debate since it could be either due to structural dysfunction of the myocardial extracellular matrix or to increased afterload caused ...
Albumin in decompensated cirrhosis: new concepts and perspectives
The pathophysiological background of decompensated cirrhosis is characterised by a systemic proinflammatory and pro-oxidant milieu that plays a major role in the development of multiorgan dysfunction. Such abnormality is ...
Preclinical development of three novel CARs targeting CD79b for the treatment of non-Hodgkin's lymphoma and characterization of the loss of the target antigen.
Background: Infusion of T cells modified with a chimeric antigen receptor (CAR) targeting CD19 has achieved exceptional responses in patients with non-Hodgkin's lymphoma (NHL), which led to the approval of CAR targeting ...
Gene variation at immunomodulatory and cell adhesion molecules loci impacts primary Sjögren's syndrome
Primary Sjögren's syndrome (pSS) is an autoimmune disease triggered by a combination of environmental and host genetic factors, which results in the focal lymphocytic infiltration of exocrine glands causing eye and mouth ...
Annexin A6 improves anti-migratory and anti-invasive properties of tyrosine kinase inhibitors in EGFR overexpressing human squamous epithelial cells
Annexin A6 (AnxA6), a member of the calcium (Ca2+ ) and membrane binding annexins, is known to stabilize and establish the formation of multifactorial signaling complexes. At the plasma membrane, AnxA6 is a scaffold for ...
Estrategias para el aprendizaje del profesionalismo.
La adquisición de valores y actitudes es un aspecto esencial de las competencias de los estudiantes de medicina de forma conjunta con los conocimientos y habilidades prácticas, y son parte de lo que se conoce como el ...
Calmodulin inhibitor W13 induces sustained activation of ERK2 and expression of p21CIP1
One of the major signaling pathways by which extracellular signals induce cell proliferation and differentiation involves the activation of extracellular signal-regulated kinases (ERKs). Because calmodulin is essential for ...
COVID-19 severity is related to poor executive function in people with post-COVID conditions
Patients with post-coronavirus disease 2019 (COVID-19) conditions typically experience cognitive problems. Some studies have linked COVID-19 severity with long-term cognitive damage, while others did not observe such ...
Acetylsalicylic acid prevents intermittent hypoxia-induced vascular remodeling in a murine model of sleep apnea
Study objectives: Chronic intermittent hypoxia (CIH), a hallmark feature of obstructive sleep apnea (OSA), induces accelerated atherogenesis as well as aorta vascular remodeling. Although the cyclooxygenase (COX) pathway ...
Ablation of the Regulatory IE1 Protein of Murine Cytomegalovirus Alters In Vivo Pro-inflammatory TNFalpha Production during Acute Infection
Little is known about the role of viral genes in modulating host cytokine responses. Here we report a new functional role of the viral encoded IE1 protein of the murine cytomegalovirus in sculpting the inflammatory response ...
