Antibacterial and Antioxidant Properties of Geopropolis Extracts from Stingless Bees (Meliponinae) Occurring in Brazilian Territory.

This study focuses on exploring the biological properties, antioxidant and antibacterial  associated with geopropolis resin extracts produced in Brazil. Searches were performed in the electronic databases: Lilacs, Medline, PubMed, Scielo and Science Direct. Fifteen (15) experimental studies were selected as compatible with the objective of this systematic review.

Effects of double neonatal stress on female rat sexual behaviour.

Neonatal stress affects psychological and physiological development and may be associated with affective disorders. The aim was to examine the effects of double neonatal stress (DNS) - a combination of limited bedding and nesting (LBN) and repeated maternal separation (MS) - on the oestrous cycle and sexual behaviour of adult female rats. LBN was achieved by removing part of the wood shavings from the boxes.

Effects of 17β-Estradiol on Monocyte/Macrophage Response to : An Study.

To describe how 17β-estradiol (E2) influence in the monocyte/macrophage response induced by in models of murine peritoneal macrophages (MPMs) and human peripheral blood monocytes (HPBM). MPMs (2 x 10/ml) were isolated from sham (n=3) and ovariectomized (OVX) females (n = 3) and males (n = 3) after induction by thioglycolate. The MPMs obtained from OVX females and males were treated for 24 hours with 17β-estradiol (E2) (10 M), and after that, inoculation with was carried out for 6 hours.

and Its Membrane-Associated Lipoproteins Activate Inflammatory Genes Through the NF-κB Pathway via Toll-Like Receptor 4.

is a pathogen of cows that may cause intense inflammatory responses in the reproductive tract and interfere with bovine reproduction. The aims of this study were to evaluate the immune response of bovine blastocysts and macrophages to infection and to evaluate the invasion capacity of this microorganism in bovine blastocysts. Viable and heat-inactivated strains ATCC 49782 and CI-GOTA and their extracted membrane lipoproteins were inoculated in macrophages in the presence or absence of signaling blockers of Toll-Like Receptor (TLR) 4, TLR2/4, and Nuclear Factor KB (NF-κB).

In-line electrochemical reagent generation coupled to a flow injection biamperometric system for the determination of sulfite in beverage samples.

This work reports an in-line electrochemical reagent generation coupled to a flow injection biamperometric procedure for the determination of SO3(2-). The method was based on a redox reaction between the I3(-) and SO3(2-) ions, after the diffusion of SO2 through a gas diffusion chamber. Under optimum experimental conditions, a linear response ranging from 1.

Hemodynamic disorders related to beating heart surgery using cardiac stabilizers: experimental study.

Objective: To study in swine the hemodynamic changes secondary to the use of stabilizers for off-pump coronary artery bypass graft surgeries by means of both a suction device "Octopus" and a compression device (Speroni).

Methods: Ten swine underwent median sternotomy. Monitoring of ECG, continuous cardiac output, mean arterial pressure, mean pulmonary artery pressure, mean right and left atrial pressures, and right and left ventricular diastolic pressure were performed.