Quercetin alleviates seed germination and growth inhibition in Apocynum venetum and Apocynum pictum under mannitol-induced osmotic stress.

Quercetin is one of the main flavonoids in the human diet and mainly found in different plant tissues, including seeds, flowers, leaves, stems, and roots. However, its biological function in plant tissues, especially in seeds, is unknown. In this study, the seed germination and subsequent seedling growth of Apocynum pictum and A.

Dataset of full-length transcriptome assembly and annotation of using pacbio sequel II.

, which belongs to Apocynaceae, is widely distributed throughout salt-barren zones, desert steppes, and alluvial flats of the Mediterranean area and Northwestern China. has long been used in traditional Chinese medicine because of its anti-inflammation, anti-oxidative, anti-hypertensive, anti-cancer, and bactericidal effects. However, the absence of genetic information on  is an obstacle to understanding its stress resistance or medicinal function.

[Research progress of novel preparations of polysaccharides].

Polysaccharides are macromolecular compounds linked by multiple monosaccharides or monosaccharide derivatives, with a variety of biological activities, such as anti-tumor, anti-oxidation, anti-virus, immunity enhancement, hypoglycemic, hypolipidemic. Its complex structure, diverse biological activities, good application prospects and broad sources of polysaccharides have attracted more and more researchers. The application of microcapsules, microspheres, nanoparticles, liposomes and other new preparation techniques in the preparation research and development of polysaccharides will not only improve the stability and bioavailability of polysaccharides, but also have a good targeting in the treatment of diseases and high biocompatibility.

A Theranostic Nanoprobe for Hypoxia Imaging and Photodynamic Tumor Therapy.

Hypoxia is a common feature for most malignant tumors, which was also closely related to the oxygen-dependent photodynamic therapy. Based on Förster resonance energy transfer (FRET), a smart nanoprobe (designated as H-Probe) was designed in this paper for hypoxia imaging and photodynamic tumor therapy. Due to the FRET process, H-Probe could respond to hypoxia with a significant fluorescence recovery.

[Effect of shock lymph on the expression of inflammatory mediators in pulmonary micro-vascular endothelial cells of rats].

Objective: To observe the effect of lymph collected during shock on free radical and expressions of nitric oxide (NO), tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) mRNA of pulmonary micro-vascular endothelial cells (PMVECs) of rats in order to explore the mechanisms of damaging effect of lymph collected during shock to the PMVECs.

Methods: PMVECs were isolated and cultured, and used at passage 3. The model of serious hemorrhagic shock was reproduced by maintaining the arterial blood pressure of rats at 40 mm Hg (1 mm Hg=0.

[Effects of normal lymph on myeloperoxidase activity and adenosine triphosphatase in rats with endotoxic shock].

Objective: To observe the effects of exogenous normal lymph on myeloperoxidase (MPO) and adenosine triphosphatase (ATPase) activities of lung homogenate in rats with endotoxic shock caused by lipopolysaccharide (LPS), and to preliminarily discuss its mechanisms.

Methods: Forty male Wistar rats were randomly divided into four groups: endotoxin group, lymph group, plasma group and control group. The rats in the preceding three groups were injected intravenously with LPS (5 mg/kg.

[Effects of free oxygen radical and nitric oxide in multiple organ dysfunction syndrome induced by acute renal failure].

Objective: To observe the changes in free oxygen radical and nitric oxide (NO) in the liver, lung, and heart homogenate in rabbits with acute renal failure (ARF), and inquire into the mechanism of multiple organ dysfunction syndrome (MODS) subsequent to ARF.

Methods: Sixty rabbits were randomly divided into four groups (n=15 in each group). In the group I ARF was reproduced by hypodermic injection of 1% HgCl(2) in a dose of 1.