ABSTRACT
Pathological processes such as myocardial apoptosis, cardiac hypertrophy, myocardial fibrosis, and cardiac electrical remodeling are involved in the development and progression of most cardiac diseases. MicroRNA-21 (miR-21) has been found to play an important role in heart diseases as a novel type of endogenous regulators, which can inhibit cardiomyocyte apoptosis, improve hypertension and cardiac hypertrophy, promote myocardial fibrosis and atrial electrical remodeling. In this review, we summarize the research progress on the function of miR-21 in heart diseases and its mechanism, and discuss its potential application in diagnosis and treatment of heart diseases.
Subject(s)
Humans , Cardiomegaly , Genetics , Heart Diseases , Genetics , MicroRNAs , Genetics , Metabolism , Myocardium , PathologyABSTRACT
Objective To study the effect of metoprolol combined with benazepril on cardiac structure and heart function in patients with heart failure and the treatment of hypertension in the elderly. Methods 120 cases of elderly hypertensive patients with heart failure from June 2011 to June 2015 were studied, according to the random number table method, they were randomly divided into combination group and control group.The two groups were given symptomatic and supportive therapy, the control group on the basis of conventional treatment were given antihypertensive drugs of benazepril; combination treatment group were given metoprolol on the basis of control group. After treatment, the clinical efficacy of the two groups were evaluated, the changes of cardiac structure in the two groups were recorded and analyzed before and after treatment, and the blood pressure and cardiac function were analyzed. Results The total effective rate of the combined group was 91.67%, the control group was 78.33%, there was significant difference between the two groups (χ2=4.1830, P=0.0408). After 6 months of treatment, the blood pressure, cardiac structure and 6min walking distance were significantly improved in the two groups (P<0.05). The above indicators in combination group were significantly better than those in the control group (P<0.05). The complication rate in combination group was 8.33%, 13.33% in the control group, there was no statistically significant between two groups (χ2=0.7764, P=0.3782). Conclusion Metoprolol combined with antihypertensive treatment can significantly improve the clinical efficacy of the treatment, improve the cardiac structure and function.
ABSTRACT
Objective:To assess the differences among the expressions of p38 mitogen activated protein kinases (MAPK),phospho-p38MAPK and nuclear factor kappa B (NF-κB)in oral lichen planus (OLP)and oral squamous cell carcinoma (OSCC ).Methods:In the study,53 cases of OLP,45 of OSCC,and 18 controls were obtained and 4-μm-thick histological sections were prepared from formalin-fixed paraffin-embedded tissue blocks.The expressions of p38MAPK,phospho-p38MAPK and NF-κB were detected by immunohistochemistry staining.Furthermore,the expressions of p38MAPK and phospho-p38MAPK were detected using Western blotting analyses in the fresh tissues from 1 1 cases of OLP,5 ca-ses of OSCC,and 7 cases of the controls.Results:p38MAPK was over-expressed in the lamina propria, but lowly expressed in the epithelium in OLP group.Phospho-p38MAPK was lower expressed in OLP group than in OSCC and control groups.NF-κB was found over-expressed in the lamina propria in OLP group.p38MAPK was found expressed in all the samples in the 3 groups.The expression of phospho-p38MAPK was observed in 8 (8/11)OLP samples,5 (5/5)OSCC samples and 4 (4/7)controls by Western blotting,but no significant differences were found within the 3 groups.Conclusion:p38MAPK can be detected in normal oral mucosa,OLP and OSCC.phospho-p38MAPK may be related to the onset and progression of OSCC.The role of p38MAPK in OLP is yet to be revealed.