Thermal batteries are a type of thermally activated reserve batteries, where the cathode material significantly influences the operating voltage and specific capacity of the battery. In this work, VS-VO has been synthesized through the hydrothermal method and used as the cathode material for thermal batteries. Firstly, the material with the VS crystallinity is obtained at 170 °C and the mass percentages of VS/VO are 63.
View Article and Find Full Text PDFChemical investigation on the 80% EtOH extract of the air dried aerial parts of resulted in the isolation of two new polycyclic polyprenylated derivatives, hypersampines A and B ( and ). The structures of the new compounds were elucidated by spectroscopic data (NMR, IR, and UV) and high resolution mass analysis. The two isolated polyprenylated acylphloroglucinols were tested for cytotoxic activities against 6 pancreatic cell lines.
View Article and Find Full Text PDFBackground: Cardiovascular disease is a major complication of diabetes mellitus (DM). Type-2 DM (T2DM) is associated with an increased risk of cardiovascular events and mortality, while serum biomarkers may facilitate the prediction of these outcomes. Early differential diagnosis of T2DM complicated with acute coronary syndrome (ACS) plays an important role in controlling disease progression and improving safety.
View Article and Find Full Text PDFDeteriorated age-related bone loss is the hallmarks of skeletal aging. However, how the aging of bone marrow mesenchymal stem cells (BMSCs) and osteoclasts are linked to the bone microstructure degeneration is not yet very clear. In this study, the characteristics of age-related bone loss, distribution patterns of osteoclasts, functional and transcriptomic alterations of BMSCs, hub genes responsible for BMSCs senescence, were analyzed.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Basis Dis
October 2023
The senescence of bone marrow mesenchymal stem cells (BMSCs) is the basis of senile osteoporosis (SOP). Targeting BMSCs senescence is of paramount importance for developing anti-osteoporotic strategy. In this study, we found that protein tyrosine phosphatase 1B (PTP1B), an enzyme responsible for tyrosine dephosphorylation, was significantly upregulated in BMSCs and femurs with advancing chronological age.
View Article and Find Full Text PDFBoth particulate matter with aerodynamics of less than 2.5 (PM) and ozone are the two main air pollutants in China, which seriously endanger human health. To estimate the adverse impacts of PM and ozone on human health during the implementation of air pollution prevention and control actions in Chengdu, both the generalized additive model and the nonlinear distribution lag model of epidemiology were adopted to explore the exposure-response relationship coefficients of daily ozone 8h maximum concentration average (O), as well as that of PM on disease deaths in Chengdu from 2014 to 2016.
View Article and Find Full Text PDFThe objective of this study was to investigate the effect of clarithromycin on the pharmacokinetics of tacrolimus in rats and better understand its mechanism. In the control group (n = 6), rats received a single oral dose of 1 mg tacrolimus on day 6. In the experimental group (n = 6), rats received 0.
View Article and Find Full Text PDFPurpose: To establish a machine-learning (ML) model based on coronary computed tomography angiography (CTA) images for evaluating myocardial ischemia in patients diagnosed with coronary atherosclerosis.
Methods: This retrospective analysis includes CTA images acquired from 110 patients. Among them, 58 have myocardial ischemia and 52 have normal myocardial blood supply.
Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The Spike protein that mediates coronavirus entry into host cells is a major target for COVID-19 vaccines and antibody therapeutics. However, multiple variants of SARS-CoV-2 have emerged, which may potentially compromise vaccine effectiveness.
View Article and Find Full Text PDFSichuan Da Xue Xue Bao Yi Xue Ban
December 2019
Objective: To detect the effects and mechanism of asprosin (Asp) and spartin on the injury of mice cardiac microvascular endothelial cells (CMECs) induced by high glucose.
Methods: The cultured CMECs were divided into 2 groups, one group is normal group (5.5 mmol/L glucose in the medium) and another is HG group (30 mmol/L glucose in the medium).
Cell lysis, where cellular material is released, is the basis for the separation and purification of cell contents, biochemical analysis, and other related experiments. It is also a key step in molecular, real-time, and cancer diagnoses as well as in the drug screening of pathogens. The current methods of lysing cells have several limitations, such as damage to the activity of cellular components, the need for a large number of cell samples, time-consuming processes, and the danger of high voltage.
View Article and Find Full Text PDFBackground/objective: To compare the curative effect of single-stage and two-stage Fowler-Stephens (F-S) laparoscopic orchidopexy for intraabdominal high testis and explore the appropriate surgical approach.
Methods: We performed a prospective analysis of the clinical data of 28 patients who underwent F-S laparoscopic orchidopexy for intraabdominal high testis in our department from May 2012 to April 2015, including 15 cases of the single-stage F-S operation and 13 cases of the two-stage F-S operation. By comparing the two groups preoperative and postoperative (6 months) clinical data of testicular position, testicular volume, and sex hormone levels [testosterone (T), follicle stimulating hormone (FSH), and estradiol (E)], we analyzed the difference in efficacy between the two procedures.
This paper focuses on biofilms of Lactobacillus spp. - a type of normal flora isolated from healthy human vaginas of women of childbearing age; thereupon, it broadens the research scope of investigation of vaginal normal flora. The static slide culture method was adopted to foster biofilms, marked by specific fluorescence staining.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
October 2014
To study the genetic stability of Panax quinquefolium after introduced into China for 30 years, the samples of P. quinquefolium from 14 regions of China were studied. RAPD molecular marker technology was applied in this research, and POPGEN32 data analysis and NTSYS2.
View Article and Find Full Text PDFSelective synthesis of 4-(sulfonyl)-methyl-1H-pyrazoles and (E)-4,5-dihydro-1H-pyrazoles from N-allenic sulfonylhydrazones with sulfonyl group migrations has been developed. A key feature of these reactions is that the migrations of the sulfonyl groups to different positions can be controlled by changing the Lewis acids.
View Article and Find Full Text PDFZhonghua Liu Xing Bing Xue Za Zhi
January 2013
Zhonghua Gan Zang Bing Za Zhi
July 2003
Objectives: To explore whether PreS2 can change the percentage of T lymphocyte subgroups and the ration of CD4+/CD8+ in hepatocellular carcinoma (HCC) caused by HBV.
Methods: The P120-146 region composed by the way of Merrifield, which was the most intensive antigen in PreS2 peptides, served as the antigen after dissolved in 0.01 mol/L PBS.