CONTEXT Titanium dioxide nanoparticles (nano-TiO(2)) and ethanol vapors are air contaminants with increasing importance. The presence of a pathological pulmonary condition, such as asthma, may increase lung susceptibility to such contaminants. OBJECTIVE This study aimed to investigate if exposure to inhaled ethanol vapors or nano-TiO(2) can modulate the rat pulmonary inflammatory response res...

Anti-D can prevent immunization to the RhD Ag on RBCs, a phenomenon commonly termed Ab-mediated immune suppression (AMIS). The most accepted theory to explain this effect has been the rapid clearance of RBCs. In mouse models using SRBC, these xenogeneic cells are always rapidly cleared even without Ab, and involvement of epitope masking of the SRBC Ags by the AMIS-inducing Ab (anti-SRBC) has be...

BACKGROUND Although chicken oviduct is a useful model and target tissue for reproductive biology and transgenesis, little is known because of the highly specific hormonal regulation and the lack of fundamental researches, including lectin-binding activities and glycobiology. Because lectin is attached to secreted glycoproteins, we hypothesized that lectin could be bound to secretory egg-white p...

The homologous proteins from the egg whites of different avian species offer excellent opportunities for the study of the comparative and genetic biochemistry of proteins. Comparative studies of avian egg whites have utilized electrophoretic (l-4), immunological (5, 6), and specific biochemical (7, 8) analyses. These studies have all shown significant, and in some instances large, differences b...

The homologous proteins from the egg whites of different avian species offer excellent opportunities for the study of the comparative and genetic biochemistry of proteins. Comparative studies of avian egg whites have utilized electrophoretic (l-4), immunological (5, 6), and specific biochemical (7, 8) analyses. These studies have all shown significant, and in some instances large, differences b...

Although their high potential as alternative biopharmaceuticals, less than 2% of the total polyclonal antibodies produced worldwide correspond to immunoglobulin Y (IgY) due difficulties in isolating them from egg yolk (complex biological matrix). In this work, water-soluble proteins fraction (WSPF) was first obtained and present identified by one-dimensional gel electrophoresis (SDS-PAGE) label...

Data of four layers flocks (#31-34) from North Carolina Layer Performance and Management Test of the Department of Agriculture and Consumer Services were used in the meta-analysis to find if an increase in space allowance can affect egg production traits in white and brown layers. Effects of space allowance of 310 and 413 cm2/bird on layers performance were compared in this study. The increase ...

Administration of estrogen (E) to immature chicks triggers the cytodifferentiation of tubular gland cells in the magnum portion of the oviduct epithelium ; these cells synthesize the major egg-white protein, ovalbumin. Electron microscopy and immunoprecipitation of ovalbumin from oviduct explants labeled with radioactive amino acids in tissue culture were used to follow and measure the degree o...

Under appropriate conditions, oleic acid replaces biotin for several lactic acid bacteria.‘, z This growth-promoting action of oleic acid is not nullified by excess avidin for Streptococcus jaecalis R2 or for several other organisms (Table I). Egg white did, however, block utilization of oleic acid by Lactobacillus arabinosus (Table I). This result is obtained whether oleic acid is added alone,...

481 fresh fertilized eggs of three Kurdish local chickens (Black with brown neck, White with shank feathering, and White with non-feathering shank) were collected at pre-molting (355 eggs) and post-molting (126 eggs) stages to evaluate external egg traits. A venine caliper was used to determine the length and breadth of eggs to calculate Shape index. Results indicated that egg weight increased ...