A method for the α-oxidation and sulfonation of benzyl secondary amines was developed utilizing Ir(III) or Eosin Y as the photocatalyst in the presence of O as a green oxidant. Using commercial substrates, 37 products from cyclic and acyclic benzylamines were achieved with good functional group compatibility in 48-87% yields. Furthermore, tetrahydroisoquinoline protected by an Ac or a Boc group was oxidized under standard conditions.
View Article and Find Full Text PDFBackground: This study aimed to investigate the effect of phenyllactic acid as an additive on silage fermentation and bacterial community of reed canary grass (RCG, Phalaris arundinacea L.) on the Qinghai Tibetan Plateau. At the heading stage, RCG was harvested, chopped and ensiled in small bag silos.
View Article and Find Full Text PDFThis study investigated the effects of phenyllactic acid (PL), lactic acid bacteria (LAB), and their mixture on fermentation characteristics and microbial community composition of timothy silage. Timothy silages were treated without (CK) or with PL [10 mg/kg fresh matter (FM) basis], LAB inoculant (IN; a mixture of and , 10 cfu/g FM), and their mixture (PI) and stored at ambient temperature (5°C∼15°C) in a dark room for 60 days. Compared with CK, all treated silages showed lower ( < 0.
View Article and Find Full Text PDFAs unconventional forage source, mulberry ( L.) has been cultivated to alleviate animal feed shortages. This study aimed to investigate the effects of N fertilization during cultivation and inoculation at ensiling on the chemical composition and bacterial community of mulberry silage.
View Article and Find Full Text PDFThis study aimed to investigate the effects of delayed harvest and additives on the fermentation quality and bacterial community of corn stalk silage in South China. The corn stalks after ear harvest at the 0 day (D0), 7 days (D7), and 15 days (D15) were used to produce small-bale silages. The silages at each harvest time were treated without (control, CK) or with (LP) and sodium benzoate (BF).
View Article and Find Full Text PDFAim: Myocardial infarction (MI) is a severe disease with increased mortality and disability rates, posing heavy economic burden for society. Exosomes were uncovered to mediate intercellular communication after MI. This study aims to explore the effect and mechanism of lncRNA KLF3-AS1 in exosomes secreted by human mesenchymal stem cells (hMSCs) on pyroptosis of cardiomyocytes and MI.
View Article and Find Full Text PDFBackground: Coronary microembolisation (CME)-induced myocardial apoptosis is a key factor in progressive cardiac dysfunction. Aloperine (ALO) plays a protective role in the cardiovascular system, but its role and the mechanism -underlying its protection against CME are unclear. Therefore, we aimed to verify whether ALO has a protective effect against CME-induced myocardial injury, as well as whether this effect has a relationship with regulation of the PI3K/Akt pathway for rats.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
September 2019
It has been found that use of drugs which upregulate the PI3K/Akt pathway can effectively reduce cardiomyocyte apoptosis which has been induced by coronary microembolization (CME). However, whether this functional protein is able to be modified through pretreatment via nobiletin (NOB) in models of CME has not yet been investigated. Therefore, this study set out to explore the cardioprotective effect of NOB on rats with myocardial injuries induced by CME and also explored the potential mechanism which underlies this cardioprotective effect.
View Article and Find Full Text PDFJ Cardiovasc Pharmacol Ther
November 2019
Objective: Coronary microembolization (CME)-induced cardiomyocyte apoptosis is the primary factor in causing cardiac dysfunction. Resveratrol (RES) is known to play a protective role in a variety of cardiovascular diseases, yet it is not known whether RES has a protective role in CME. Therefore, the effect of RES on cardiomyocyte apoptosis and cardiac function damage which are induced by CME in rats was investigated in this study.
View Article and Find Full Text PDFMesenchymal stem cells (MSCs) have been applied in treating various diseases including myocardial infarction (MI) and achieved a bit of success; however, the decreased survival rate of MSCs after transplantation greatly limited the efficacy for cell therapy. How to improve the MSC survival rate in stem cell transplantation has undoubtedly become urgent and genetic engineering may be an ideal and feasible way. In this study, we explored the effects on MSCs survival and self-renewal by overexpression of integrin-linked kinase (ILK) in MSCs under hypoxic stimulation and aimed to reveal the molecular mechanisms from the point of paracrine function of MSCs.
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