Хуудас 1 -аас 236 үр дүн
BACKGROUND
Cardiac conduction abnormalities are observed early in the progression of type 1 diabetes (T1D), but the mechanism(s) involved are undefined. Connexin 43, a critical component of ventricular gap junctions, depends on tyrosine phosphorylation status to modulate channel conductance; changes
Depletion of norepinephrine in the left ventricular myocardium in cases of dilated cardiomyopathy (DCM) has been suggested. However, there have been few histological studies of the sympathetic nerves, in which myocardial norepinephrine is believed to exist. We performed an immunohistological study
The intracellular signaling mechanisms underlying the pathogenesis of cardiac diseases are not fully understood. We report here that selective deletion of Shp2, an SH2-containing cytoplasmic tyrosine phosphatase, in striated muscle results in severe dilated cardiomyopathy in mice, leading to heart
OBJECTIVE
Epidermal growth factor receptor (EGFR) related reactive oxygen species (ROS) generation results in myocardial damage. We aimed to investigate the role of gefitinib (EGFR-tyrosine kinase inhibitor) in diabetic cardiomyopathy (DbCM).
METHODS
DbCM was induced by injecting streptozotocin (55
Diabetic cardiomyopathy (DCM) is a leading contributor to the increased morbidity and mortality rates associated with diabetes. Persistent inflammation has previously been reported to be involved in the pathogenesis of DCM. However, the exact underlying molecular mechanisms remain to be fully
The low molecular weight protein tyrosine phosphatase (LMPTP), encoded by the ACP1 gene, is a ubiquitously expressed phosphatase whose in vivo function in the heart and in cardiac diseases remains unknown. To investigate the in vivo role of LMPTP in cardiac function, we generated mice with genetic
Familial amyloidotic polyneuropathy is an inherited form of amyloidosis associated with a mutant form of a protein called transthyretin. The Methionine-30 variant is the most frequent mutation observed. This disorder is caused by deposition of this protein as amyloid in several organs, such as the
To investigate whether a 77C>G polymorphism in exon A of the CD45 gene causing a variant CD45RA expression pattern is associated with the development of idiopathic dilated cardiomyopathy (DCM), we studied a total of 414 individuals (104 patients and 310 controls). CD45RA expression pattern on
Ibrutinib is a first-in-class inhibitor of Bruton's tyrosine kinase, which is approved for use in chronic lymphocytic leukemia, mantle cell lymphoma, and Waldenstrom's macroglobulinemia. Although ibrutinib has been linked to an increased incidence of atrial fibrillation, this is the first report of
Noonan syndrome with multiple lentigines (NSML) is a rare autosomal dominant disorder that presents with cardio-cutaneous-craniofacial defects. Hypertrophic cardiomyopathy (HCM) represents the major life-threatening presentation in NSML. Mutations in the PTPN11 gene that encodes for the protein
The present study investigated the possible cardioprotective effects of GLP1 and SGLT2i against diabetic cardiomyopathy (DCM) in type 2 diabetic rats and the possible underlying mechanisms.Thirty-two male Sprague Dawley rats were randomly subdivided into 4 Changes in sensory and sympathetic innervation during diabetes mellitus (DM) can be a predictor of arrhythmias, silent myocardial ischemia, and chronic heart failure, but knowledge about these changes is still unsatisfactory. We analyzed whether prolonged DM induces changes in density of sensory and
Obesity-induced cardiomyopathy may be mediated by alterations in multiple signaling cascades involved in glucose and lipid metabolism. Protein tyrosine phosphatase-1B (PTP1B) is an important negative regulator of insulin signaling. This study was designed to evaluate the role of PTP1B in high fat