Tetracalcium Phosphate/Monetite/Calcium Sulfate Hemihydrate Biocement for Alveolar Bone Augmentation After Tooth Extraction in Pig Mandible.

A tetracalcium phosphate/monetite/calcium sulfate hemihydrate powder cement mixture (CAS) in the form of a paste was used as a socket preservative to prevent alveolar ridge resorption after the extraction of the second premolar tooth in the mandible of a pig model. During the post-surgery period, the animals were monitored daily. No signs of inflammation, infection, or other complications were observed in the defect site for six months.

Glutathione peroxidase 1 and 2 during preimplantation period of pregnancy in mouse.

Objectives: This study describes the presence of glutathione peroxidase (GPx) 1 and 2 in oocytes, preimplantation embryos, and mouse female genital organs.

Background: GPx1 and 2 are antioxidant enzymes, which play important roles in protection of cells against oxidation, which may be formed during cell physiological processes.

Methods: After superovulation of female mice, oocytes and preimplantation embryos (O/PE) were isolated for immunofluorescent analysis, female genital organs were removed for immunohistochemical and Western blot analyses.

The presence of glutathione peroxidase 8 (GPx8) in rat male genital organs.

Objectives: The aim of our work was to determine the presence of GPx8, the latest discovered member of glutathione peroxidase family, in rat male genital organs.

Background: The oxidative stress is considered as one of the most important causalities of male infertility. To defend itself, the organism comprises many different antioxidants.

Influence of Escherichia coli infection on intestinal mucosal barrier integrity of germ-free piglets.

Aims: We focused on investigating the influence of Escherichia coli (E. coli) on the intestinal barrier.

Material And Methods: We studied changes in the distribution and secretory activities of goblet cells and enteroendocrine cells (EECs), as well as changes in the population of mast cells (MCs) in the jejunal and colonic mucosa of germ-free (GF) piglets as a healthy control group and GF piglets whose intestines were colonised with E.

Immunohistochemical visualisation of the enteric nervous system architecture in the germ-free piglets.

The enteric nervous system (ENS), considered as separate branch of the autonomic nervous system, is located throughout the length of the gastrointestinal tract as a series of interconnected ganglionic plexuses. Recently, the ENS is getting more in the focus of gastrointestinal research. For years, the main interest and research was aimed to the enteric neurons and their functional properties in normal conditions, less attention has been paid to the germ-free animals.

The effect of Betanin parenteral pretreatment on Jejunal and pulmonary tissue histological architecture and inflammatory response after Jejunal ischemia-reperfusion injury.

Intestinal ischemic-reperfusion (IR) injury has detrimental effects on both local and distant organs in the body. Betanin is known for its antioxidant properties, and it is found mostly in vegetables. Therefore, the aim of the present study was to test the hypothesis that betanin administration prior intestinal IR, may be beneficial in protecting jejunal mucosa and lung parenchyma against IR damage.

Quercetin protects jejunal mucosa from experimental intestinal ischemia reperfusion injury by activation of CD68 positive cells.

The aim of our study was to analyse the possible protective effect of quercetin application during the jejunal ischemia-reperfusion injury (IRI) in rats. Quercetin was administered intraperitoneally 30min before 1h ischemia of superior mesenteric artery with following 24h lasting reperfusion period. The male specific pathogen-free (SPF) Charles River Wistar rats were used.

Quercetin attenuates the ischemia reperfusion induced COX-2 and MPO expression in the small intestine mucosa.

Quercetin, the active substance of tea, fruits and vegetables, exerts a broad spectrum of pharmacological activities and is considered to have potential therapeutic application. The present study was designed to investigate the beneficial effect of quercetin against experimental ischemia- reperfusion (IR) injury of the small intestine in rats. Quercetin was administrated intraperitoneally 30min before 1h ischemia of superior mesenteric artery with following reperfusion periods lasting 1, 4 and 24h.