Structural characterization, antioxidant activity, and antiglycation activity of polysaccharides from different chrysanthemum teas.

Polysaccharides are one of the major bioactive components in chrysanthemum teas. In order to understand well the chemical structures and bioactivities of polysaccharides from different chrysanthemum teas (JHPs) collected in China, the physicochemical characteristics, antioxidant activity, and antiglycation activity of polysaccharides extracted from different chrysanthemum teas, including , , 'Huangju', 'Gongju', and 'Hangbaiju', were investigated. The results showed that the contents of total uronic acids and total phenolics in JHPs ranged from (28.

Different toxicities of nanoscale titanium dioxide particles in the roots and leaves of wheat seedlings.

Despite previous studies on exploring the environmental effects of titanium dioxide nanoparticles particle (nTiO) on plants, the detailed impacts of nTiO on the antioxidant system and photosynthesis of plants is still not well understood. This study was aimed at investigating the physiological and biochemical responses to nTiO by oxidative damage, Ti bioaccumulation, cell death, and photosynthesis in wheat. The results showed that 5.

Facile synthesis and microwave absorption investigation of activated carbon@FeO composites in the low frequency band.

Activated carbon@FeO composites with good electromagnetic wave absorption performances in the low frequency range were synthesized the hydrothermal method. The crystal structure, microstructure, magnetization properties, frequency-dependent electromagnetic properties and microwave absorption properties of the as-prepared composites were characterized XRD, VSM, SEM, TEM and VNA, respectively. The results indicated that the electromagnetic wave absorption performance of the composites can be adjusted through the addition of activated carbon.

Magnetic Nature of the Cr-Ln Interactions in [CrLn] Clusters with Slow Magnetic Relaxation.

Two 3-4 hetero-metal pentanuclear complexes with the formula {[CrLnL(OH)(HO)]EtNH} [Ln=Tb (), Dy (); HL=pivalic acid, EtN=triethylamine] have been produced. The metal core of each cluster is made up of a trigonal bipyramid with three Ln ions (plane) and two Cr ions (above and below) held together by six -OH bridges. Also reported with this series is the diamagnetic Cr-Y analogue ().

Nickel chloride (NiCl2) in hepatic toxicity: apoptosis, G2/M cell cycle arrest and inflammatory response.

Up to now, the precise mechanism of Ni toxicology is still indistinct. Our aim was to test the apoptosis, cell cycle arrest and inflammatory response mechanism induced by NiCl in the liver of broiler chickens. NiCl significantly increased hepatic apoptosis.

Effect of Two Macrocephala Flavored Powder supplementation on intestinal morphology and intestinal microbiota in weaning pigs.

A total of 75 pigs were used to investigate effects of feeding Two Macrocephala Flavored Powder (TMFP) on small intestinal morphology, intestinal microbiota in weaning pigs. The dietary treatments were: a control diet; control diet + 3 g/kg TMFP; control diet + 0.3 g/kg colistin sulfate (ANT).

Effect of Chuanminshen violaceum polysaccharides and its sulfated derivatives on immunosuppression induced by cyclophosphamide in mice.

One hundred mice were randomly divided into five groups. The mice in one group were injected with physiological saline as the normal control group. The mice in the other four groups were injected with physiological saline, sulfated Chuanminshen violaceum polysaccharides (SCVP), Chuanminshen violaceum polysaccharide (CVP) and astragalus polysaccharide (AP) once daily for 7 d and then with cyclophosphamide (CY) in the last 3 d.

Dynamic properties of the segmentation clock mediated by microRNA.

Somites are embryonic precursors that give rise to the axial skeleton and skeletal muscles and form the segmental vertebrate body plan. Somitogenesis is controlled by the "segmentation clock", which contains multiple oscillator genes that must be tightly regulated at both the transcriptional and post-transcriptional levels for proper clock function. However, how the segmentation clock governs the formation of the somites at post-transcriptional level, remains unclear.

Anti-inflammatory activity of leaf essential oil from Cinnamomum longepaniculatum (Gamble) N. Chao.

The anti-inflammatory activity of the essential oil from C. longepaniculatum was evaluated by three experimental models including the dimethyl benzene-induced ear edema in mice, the carrageenan-induced paw edema in rat and the acetic acid-induced vascular permeability in mice. The influence of the essential oil on histological changes and prostaglandin E2 (PGE2), histamine and 5-hydroxytryptamine (5-HT) production associated with carrageenan-induced rat paw edema was also investigated.

Acute and subchronic toxicity as well as evaluation of safety pharmacology of eucalyptus oil-water emulsions.

Essential oil has performed a variety of indirect services used as insect/pest repellent. The present study investigated the acute and subchronic toxicity of eucalyptus oil emulsion in water (EOE). In addition, we conduct safety pharmacology evaluation of EOE to supplement the toxicity tests and provide a basis for a comprehensive understanding of the toxicity of EOE.

γ-terpineol inhibits cell growth and induces apoptosis in human liver cancer BEL-7402 cells in vitro.

To investigate the effect of γ-terpineol on cell proliferation and apoptosis of human hepatoma BEL-7402 cells to elucidate its molecular mechanism. Here, BEL-7402 cells were treated with various concentrations (40, 80, 160, 320 and 640 μg/ml) of γ-terpineol for 48 h, cell proliferation was determined by 3-(4,5-dimethyl-thiazolyl-2)-2,5-diphenyl tetrazolium bromides (MTT) assay. Cell colony inhibition was determined by soft agar assay.

Preparation of specific anti-Helicobacter pylori yolk antibodies and their antibacterial effects.

Objective: To study immunization procedures and preparation methods of specific IgY antibodies (IgY-Hp, IgY-IB) produced by hens immunized with Helicobacter pylori (Hp) bacterial antigen and recombinant Hp specific antigen IB, detect the inhibition effects on Hp growth and Hp urease activity, and study the effects of oral administration for treating Hp infection.

Methods: By using recombinant cholera toxin subunit B (rCTB) as an adjuvant, hens received intramuscular injection immunization for continuous 7 times at an interval of 14 days. Then, the eggs were collected; IgY was purified.

Sub-chronic lead and cadmium co-induce apoptosis protein expression in liver and kidney of rats.

The combined subchronic effects of exposure to lead acetate and cadmium chloride on apoptosis protein expression were detected in the liver and kidney of rats to investigate the hazards of environmentally relevant, low-dose exposure to these compounds. The TUNEL assay showed that there were increased numbers of apoptotic cells. Immunohistochemical tests showed increased numbers of positive cells under Bax and caspase-3 protein detection and decreased Bcl-2 protein.

Effects of mixed subchronic lead acetate and cadmium chloride on bone metabolism in rats.

This study aimed to determine the effects of administering a mixture of subchronic lead acetate (Pb (NO3)2) and cadmium chloride (CdCl2·2.5H2O) on the bone metabolism of rats. A control group and three experimental groups consisted of randomly selected rats.

Effects of subchronic exposure to lead acetate and cadmium chloride on rat's bone: Ca and Pi contents, bone density, and histopathological evaluation.

This study aims to investigate the effects of low-dose subchronic exposure to lead acetate (Pb(NO₃)₂) and cadmium chloride (CdCl₂·2.5H₂O) on bone in rats. The rats were assigned randomly to a control group and three experimental groups that were given the mixture of Pb(NO₃)₂ and CdCl₂·2.