This study was designed to explore the effect and mechanism of Gegen Qinlian Decoction(GQD) on cardiac function of diabetic mice with damp-heat syndrome. The db/db diabetic mice were exposed to the damp-heat environment test chamber for inducing the damp-heat syndrome. Forty-eight six-week-old db/db mice were randomly divided into six groups, namely the db/db diabetic model group, db/db diabetic mouse with damp-heat syndrome(db/db-dh) group, db/db diabetic mouse with damp-heat syndrome treated with low-dose GQD(db/db-dh+GQD-L) group, db/db-dh+GQD-M(medium-dose) group, db/db-dh+GQD-H(high-dose) group, and db/db-dh+lipro(liprostatin-1, the inhibitor of ferroptosis) group, with eight six-week-old db/m mice classified into the control group.
View Article and Find Full Text PDFBackground And Purpose: Spermidine, a natural polyamine, is abundant in mammalian cells and is involved in cell growth, proliferation, and regeneration. Recently, oral spermidine supplements were cardioprotective in age-related cardiac dysfunction, through enhancing autophagic flux. However, the effect of spermidine on myocardial injury and cardiac dysfunction following myocardial infarction (MI) remains unknown.
View Article and Find Full Text PDFBackground: Electroacupuncture (EA) pretreatment plays a protective role in myocardial infarction injury. However, the mechanism of electroacupuncture remains unknown. The aim of this study was to confirm the protective effects of electroacupuncture (EA) on myocardial infarction injury and the possible mechanism.
View Article and Find Full Text PDFAcute myocardial infarction is a major cause of death worldwide. The most important therapy for limiting ischemic injury and infarct size is timely and efficient myocardial reperfusion treatment, which may instead induce cardiomyocyte necrosis due to myocardial ischemia-reperfusion (I/R) injury. Heat shock protein 70 (HSP70), a stress-inducible protein, is overexpressed during myocardial I/R.
View Article and Find Full Text PDFJ Cardiovasc Pharmacol Ther
January 2018
Myocardial infarction (MI) is a serious cardiovascular disease resulting in high rates of morbidity and mortality. Although advances have been made in restoring myocardial perfusion in ischemic areas, decreases in cardiomyocyte death and infarct size are still limited, attributing to myocardial ischemia/reperfusion (I/R) injury. It is necessary to develop therapies to restrict myocardial I/R injury and protect cardiomyocytes against further damage after MI.
View Article and Find Full Text PDFA study was conducted through a 1200 m-PVC-pipe-reactor, which was used to simulate the urban sewer system. Gas chromatography, liquid chromatography and 454 high-throughput sequencing were utilized to study the variation of substrates during the methanogenic process and the distribution characteristics of methanogens in the sewer system. The results showed that the concentration of methane increased along the sewer system, which illustrated that methanogens existed in the sewer network.
View Article and Find Full Text PDFAim: Sulforaphane (SFN), a natural dietary isothiocyanate, is found to exert beneficial effects for cardiovascular diseases. This study aimed to investigate the mechanisms underlying the protective effects of SFN in a model of myocardial hypoxia/reoxygenation (H/R) injury in vitro.
Methods: Cultured neonatal rat cardiomyocytes pretreated with SFN were subjected to 3-h hypoxia followed by 3-h reoxygenation.
Nan Fang Yi Ke Da Xue Xue Bao
April 2015
Objective: To investigate the serum level of carboxy-terminal telopeptide of type I collagen (ICTP) and explore its correlation with MMP-2 and MMP-9 in patients with coronary artery disease (CHD).
Methods: A total of 103 CHD patients treated in our hospital between October, 2013 and May, 2014 were enrolled, including 39 with stable angina pectoris (SAP), 39 with unstable angina (UA), and 25 with acute myocardial infarction (AMI), with 38 non-CHD volunteers as the control group. The serum levels of ICTP, MMP-2, and MMP-9 were detected in all the subjects using enzyme-linked immunosorbent assay (ELISA).
Molecularly targeted therapy emerged as a novel therapeutic strategy in the treatment of multiple cancers. In the present study, we have developed gemcitabine (GEM)-loaded cetuximab (CET) surface modified poly(lactic) acid (PLA) nanoparticles (NP) (CET-GEM/PLA NP) to target to epidermal growth factor receptor (EGFR) overexpressing non-small cell lung cancer (A549) cells. The resultant CET-GEM/PLA NP showed a very uniform particle size of∼120 nm and spherical morphology.
View Article and Find Full Text PDFHuan Jing Ke Xue
September 2014
The biodegradability and speciation of organics were studied through long-term analysis of A2/O treatment. The majority of the organic matters were particle organics which accounted for 61% of the total organics. The proportions of rapidly degradable, slowly degradable and refractory organics were 15.
View Article and Find Full Text PDFCutaneous metastasis from pancreatic cancer is uncommon, therefore, the outcome of this progression has rarely been investigated. The aim of the present report was to evaluate the clinical characteristics of patients exhibiting cutaneous metastasis from pancreatic cancer. Thus, the current report presents a rare case of cutaneous metastatic disease from pancreatic cancer and describes a systematic review of the literature.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
November 2013
Objective: To investigate the effect of carvacrol pretreatment on myocardial ischemia-reperfusion (I/R) injury and its underlying mechanisms.
Methods: Wild-type male C57 BL/6 mice were randomized into 5 groups (n=13), namely the sham-operated group, vehicle (DMSO in saline)+ I/R group, carvacrol (20 mg/kg) + I/R group, carvacrol (40 mg/kg) + I/R group, and carvacrol (60 mg/kg) + I/R group. The mouse models of myocardial I/R injury were established by a 45-min occlusion of the left anterior descending coronary artery (LAD) followed by reperfusion for 2 h.
Covalent attachment of 2,2'-(ethylenedioxy)-diethylamine to multiwalled carbon nanotubes (MWCNTs) produced amino-functionalized MWCNTs which behaved like liquids at ambient temperature. These liquid-like MWCNTs (l-MWCNTs) could be homogeneously dispersed and chemically embedded in an epoxy matrix by solvent-free processing. In contrast, solid MWCNTs (s-MWCNTs) functionalized by 1,8-diaminooctane were poorly dispersed in epoxy although they possess chemical structures and functionalization comparable to l-MWCNTs.
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