The solar light-responsive Fe-doped Co-based coordination polymer (Fe@Co-CP) photocatalyst was synthesized under mild conditions. [Co(4-padpe)(1,3-BDC)] (Co-CP) was first constructed using mixed ligands through the hydrothermal method. Then, Fe was introduced into the Co-CP framework to achieve the enhanced photocatalytic activity.
View Article and Find Full Text PDFImproving soil fertility is one of the key approaches for ecological restoration of the wind-sand area in northwest Liaoning Province. Taking wind-sand area in northwest Liaoning Province as test object, we conducted a fertilization experiment with treatments of inorganic fertilizer (nitrogen, phosphorus and potassium fertilizers), organic fertilizer, combined application of organic and inorganic fertilizers, and organic fertilizer combined with a biologically organic matrix (γ-polyglutamic acid), and no fertilizer as control. We measured soil organic matter content and extractable cations concentrations, vegetation coverage, and biomass under different fertilization treatments and determine the suitable fertilization mode.
View Article and Find Full Text PDFInsect pest chitinases are potential target for developing new insect growth regulators. Piperine was found first to inhibit the insect chitinase (Chi-h) from (Asian corn borer) in this work, except for previously reported ChtI. Novel piperonyl-tethered rhodanine derivatives - were rationally designed with piperine as lead and synthesized by introducing a unique rhodanine moiety into the piperine scaffold based on the similar binding cavity of ChtI and Chi-h.
View Article and Find Full Text PDFBackground: Esophagojejunal anastomotic leakage (EJAL) is a serious and potentially crucial complication of total gastrectomy and represents the major cause of postoperative death, with a mortality rate of up to 50%. However, treatment remains challenging and controversial. We report here the case of a patient whose intrathoracic EJAL was successfully treated with computer tomography (CT)-guided negative pressure drainage treatment.
View Article and Find Full Text PDFZhonghua Er Ke Za Zhi
July 2010
Objective: To investigate the process to accept the new complementary food, by infants and to analyze the influential factors.
Method: A total of 105 infants were enrolled in this study. Early infant temperament questionnaires were answered by the mothers.
Published data on the association between mitogen-activated protein kinase kinase kinase 1 (MAP3K1) gene rs889312 polymorphism and breast cancer risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Crude ORs with 95% CIs were used to assess the strength of association between them.
View Article and Find Full Text PDFThe occurrence of concomitant aortic aneurysm and colorectal cancer is a rare medical entity, and controversy surrounds its optimal treatment. We report a case of rectal cancer and concomitant aneurysm from the ascending aorta to the common iliac artery. As with DeBakey type I aortic dissecting aneurysm, our patient was treated by rectal cancer resection, with preservation of the anus (Dixon operation) under controlled hypotension.
View Article and Find Full Text PDFObjective: To explore the value of analysis of p53 gene mutation in fecal specimen in the diagnosis of colorectal carcinoma (CRC) in order to establish a non-invasive method for the screening of CRC.
Methods: The status of p53 gene mutation of the tumor tissues and corresponding fecal specimens was analyzed by polymerase chain reaction-single strand configuration polymorphism with EB staining in 40 CRC, 20 colorectal adenoma and 15 gastrocarcinoma.
Results: Amplification rates of fecal p53 gene were 90%, 85% and 93% in 40 CRC, 20 colorectal adenoma and 15 gastrocarcinoma, respectively.