Products Released from Structurally Different Dextrans by Bacterial and Fungal Dextranases

Bacterial Endotoxin Released by Different Types of Mouthwash

Endotoxins are part of the outer membrane of the cell wall of gram-negative bacteria. Mouthwashes or rinses are products used to enhance oral hygiene. In the present study, gram positive and gram negative bacterial isolates were collected and laboratory tests was used to assess the inhibition of growth of oral bacteria by three modern commercially available mouthwashes containing Aloe vera, Pep...

The dextranase along sugar-making industry

In sugar production, dextrans are undesirable compounds synthesized by contaminant microorganisms from sucrose, increasing the viscosity of the flow and reducing industrial recovery, bringing about significant losses. The use of the dextranase enzyme is the most efficient method for hydrolyzing the dextrans at sugar mills. Some bacterial strains, filamentous fungi and a small number of yeasts h...

Shiga toxin 2 is specifically released from bacterial cells by two different mechanisms.

Shiga toxin 1 (Stx1) is located in the periplasmic fraction, while Stx2 is found in the extracellular fraction, suggesting that enterohemorrhagic Escherichia coli (EHEC) contains a specific Stx2 release system. Both stx(1) and stx(2) are found within the late operons of Stx-encoding phages. Stx2 production is greatly induced by mitomycin C, suggesting that stx(2) can transcribe from the late ph...

Studies on dextrans and dextranases. 2. The action of mould dextranases on modified isomaltodextrins and the effect of anomalous linkages on dextran hydrolysis.

Induction of plasminogen activator inhibitor by products released from platelets.

Activation of platelets and augmentation of plasma plasminogen activator inhibitor (PAI) type I activity accompany acute myocardial infarction. To determine whether the two may be related, platelet compounds including epidermal growth factor and transforming growth factor beta as well as platelet lysates were studied in rabbits in vivo. After intravenous infusion of epidermal growth factor (1 a...