A distinct conformational transition from the α-helix-rich cellular prion protein (PrPC) into its β-sheet-rich pathological isoform (PrPSc) is the hallmark of prion diseases, a group of fatal transmissible encephalopathies that includes spontaneous and acquired forms. Recently, a PrPSc-like intermediate form characterized by the formation of insoluble aggregates and protease-resistant PrP speci...

The association between occupancy of the von Willebrand factor (vWf) receptor glycoprotein (GP) Ib, agglutination, and the assembly and composition of the cytoskeletal core was studied in 125I-surface-labeled aspirin-treated washed platelets. Binding of ligands to GPIIb-IIIa and platelet aggregation were abolished by addition of EDTA. Platelet agglutination induced by bovine vWf generated a com...

During the processes of primary succession and soil development, large stocks of organic C with very long residence times accumulate in many soils. Soluble organic C adsorbed by soils may contribute to the stock of organic C accumulating during soil development. We determined whether the mineralization rate of water-soluble organic C and the insoluble residue from C-labelled leaf litter added t...

5-Ring Polycyclic Aromatic Hydrocarbons, Uptake, Metabolism, Plant Cell Suspension Cultures, Chenopodiaceae Three 14C-labelled 5-ring PAHs, benzo(a)pyrene, dibenz(a,h)anthracene and perylene were added to various cell suspension cultures of plants belonging to the Chenopodiaceae family. The differently configurated 5-ring systems varied in uptake and metabolism. The uptake of benzo(a)pyrene was...

I t has long been known that the cytochrome system, which is responsible for the major oxidative functions of the mammalian tissues, is associated with insoluble particulate matter of the cells. I t is furthermore well established that the mitochondria are the sites of the oxidative reactions of the cells and that the cytochrome system is localized in these cytoplasmic organelles. These two fac...

In this study, it was aimed to determine the properties of black carrot pomace and its use in pastries. For purpose, dried at 150ºC by using drum drier. Dietary fiber (64.93 %), total sugar (1.16 fat (1.60 protein (8.82 anthocyanins (0.21 mg/g) phenolic substances (2.30 were determined. The functional such as water retention capacity (1.53 g/g), swelling (1.59 mL/g), alcohol insoluble residue (...

Etiolated pea (Pisum sativum) epicotyls synthesize a buffer-soluble cellulase (cellulase A) and a salt-soluble cellulase (cellulase B) (EC 3.2.1.4) after treatment with high (0.5%) auxin levels. Only cellulase A increased in activity after treatment with low (0.005%) auxin. Cellulase A was released into the supernatant after homogenization of tissue in dilute buffer (buffer-soluble), had a pH o...

This work aims to assess the potential reactivity of a mechanically activated kaolin for its use as an alternative cement precursor. The mechanical activation was successfully achieved by grinding at different rotation speeds (250, 300, and 350 rpm) times (60, 90, 120 min), obtaining highly amorphous reactive material. amorphization monitored through XRD with content estimation FTIR deconvoluti...

The content of the phosphorus fractions in bacillus spores reveal a marked difference in the quantity of residue phosphorus (Fitz-James and Young, 1959). In particular, the spores of two strains of Bacillus megaterium contained a residue phosphorus of over 1 per cent of the dry weight whereas in another strain it was essentially nil. This residue fraction remaining after a modified Schmidt and ...

BACKGROUND Biorefineries serve to efficiently utilize biomass and their by-products. Algal biorefineries are designed to generate bioproducts for commercial use. Due to the high carbohydrate content of algal biomass, biorefinery to generate biofuels, such as bioethanol, is of great interest. Carrageenan is a predominant polysaccharide hydrocolloid found in red macroalgae and is widely used in f...