Truelsenmorsing9072
A nomogram incorporating these independent predictors with a good discrimination (0.79 in C-index) and calibration was constructed to predict the incidence of MACE within 1 year. It could be used to help select the patients with a high risk of MACE and develop preventive treatment strategies.
Risk factors of CAD, PTFV1, CRP, and E/Em were the independent predictors for the MACE within 1 year in patients with low-risk chest pain. The present nomogram provides a user friendly tool in the prediction of MACE for these patients.
Risk factors of CAD, PTFV1, CRP, and E/Em were the independent predictors for the MACE within 1 year in patients with low-risk chest pain. The present nomogram provides a user friendly tool in the prediction of MACE for these patients.
To investigate whether human umbilical cord mesenchymal stem cells (UMSCs) derived exosomes (exosome) can repair the heart after myocardial infarction (MI) by delivering circ-0001273 and its mechanism.
Through the Sprague Dawley (SD) rat MI model was established, at the same time, we designed si-circ-0001273. Phosphate-buffered saline (PBS), exosome and si-circ-0001273-exosome were transplanted into ischemic hearts of rat, respectively. Through the echocardiography, hematoxylin-eosin staining (HE) method to detect the rat heart recovery. Meanwhile, H9c2 was treated with hypoxic serum-free serum to construct an in vitro apoptosis model to further explore the effect of circ-0001273 on myocardial cell apoptosis.
Compared with the exosome-treated group, the left ventricular ejection fraction (EF) and shortened fraction (FS) of the rat heart was remarkably reduced and the cardiac structure was more disordered in the si-circ-0001273-exosome-treated group. Meanwhile, in vitro TUNEL staining and flow cytometry detection, results showed that compared with the exosome co-culture group, the incidence of H9C2 cell apoptosis in the si-circ-0001273-exosome co-culture group was obviously increased.
Circ-0001273 can remarkably inhibit the occurrence of myocardial cell apoptosis in ischemic environment, promote MI repair, and provide a good reference for clinical treatment.
Circ-0001273 can remarkably inhibit the occurrence of myocardial cell apoptosis in ischemic environment, promote MI repair, and provide a good reference for clinical treatment.
The aim of this study was to investigate the expression of long non-coding ribonucleic acid (lncRNA)-p21 in rats with acute myocardial infarction (AMI) and its influences on the viability and apoptosis of myocardial cells.
Sprague-Dawley rats were utilized to establish the AMI model. Myocardial tissues were extracted, and myocardial cells were isolated. Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the expression of lncRNA-p21. Subsequently, myocardial cells of AMI rats were cultured and transfected with lncRNA-p21 or small interfering (si)-lncRNA-p21. 48 h later, cell proliferation was determined using Cell Counting Kit-8 (CCK-8). Caspase-3 kit was applied to examine the changes in Caspase-3 after myocardial cell transfection. Moreover, Western blotting assay was performed to measure the protein expressions of apoptosis-associated indexes [B-cell lymphoma-2 (Bcl-2) and Bcl-2-associated X protein (Bax)] and key members of the Wnt signaling pathway (Wnt-5a and β-catenin).
nt/β-catenin signaling pathway.
LncRNA-p21 was lowly expressed in myocardial tissues of AMI rats. Furthermore, it affected the proliferation, apoptosis and inflammation level of myocardial cells in AMI rats by activating the Wnt/β-catenin signaling pathway.
Myocardial infarction (MI) is a cardiovascular disease that seriously endangers human health. Exosomes secreted by stem cells have big potential for the treatment of many diseases. KU-55933 price The purpose of this study was to study the therapeutic effects of exosomes derived from lipopolysaccharide (LPS)-stimulated bone marrow mesenchymal stem cells (BMSCs) on MI.
The surface markers of BMSCs were detected by Western blot. After BMSCs were stimulated with LPS for 2 days, the exosomes secreted by BMSCs were extracted and observed by transmission electron microscopy (TEM), and their specific surface markers were detected by Western blot. H9c2 cells were co-cultured with exosomes for 24 hours, and then, treated with H2O2 for 4 hours. Next, H9c2 cells were transfected with miRNA-181a-5p mimic (MIM) or negative control (NC). Inflammation and oxidative stress of H9c2 cells were detected by Western blot, cell staining, reactive oxygen species (ROS) quantification, and SOD activity assay. At last, miR-181a-5p expression in Base the expression of miR-181a-5p in BMSCs, and miR-181a-5p inhibits myocardial inflammation and oxidative stress by targeting ATF2.Mycoplasma pneumoniae infection is frequent but generally mild or self-limiting. Approximately 10% of cases develop clinical signs of pneumonia with "atypical" radiographic pattern. However, mycoplasma pneumoniae can be responsible for a variety of extrapulmonary manifestations, potentially involving all systems and apparatuses. Although exact pathophysiological mechanisms are not completely known, these could be secondary to direct invasion of the target organ, immunological damage due to molecular mimicry or vascular obstruction. A 45-year-old man was admitted to Internal Medicine Unit because of fever, dry cough and fatigue lasting 15 days. Fever disappeared after starting clarithromycin. About 72 h after admission the patient complained of right calf pain and tachypnea. The presence of anti-mycoplasma antibodies suggested mycoplasma pneumoniae infection. Moreover, a diagnosis of venous thrombo-embolism was performed. Given the absence of classical risk factors for thrombosis, patient was investigated for inherited and acquired thrombophilia and tested positive for antiphospholipid antibodies. A review of the English literature on the association between m. pneumoniae and pulmonary embolism will be provided in order to underline the possible pathogenetic role of antiphospholipid antibodies in this setting. Clinicians should outweigh risk and benefits for LMWH prophylaxis case by case considering these adjunctive pro-thrombotic mechanisms in patients m. pneumoniae infection.