The binding characteristics of iota toxin, a binary enterotoxin produced by Clostridium perfringens type E, were studied by fluorescence-activated cytometry. The proteolytically activated binding component of iota toxin, iota b (Ib), bound to various cell types when incubated at 4, 25, or 37 degrees C for 10 min. The binding of Ib was inhibited by antisera against C. perfringens type E or Clost...

Intracavitary brachytherapy (ICBT) and interstitial brachytherapy (IB) techniques are commonly practiced for treating carcinoma of the cervix, either alone or in combination with external beam radiotherapy. Both these brachytherapy techniques have their own advantages and limitations in terms of tumor coverage and normal tissue sparing. Limited studies have been reported comparing the dosimetri...

In our previous studies, IB-MECA, an adenosine A(3) receptor agonist, was found to stimulate proliferation of hematopoietic progenitor and precursor cells in mice. This property of IB-MECA was considered to be responsible for its ability to support regeneration of suppressed hematopoiesis after irradiation with sublethal doses of γ-rays when the drug was given in a post-irradiation treatment re...

Individuals respond to threats to affiliation and achievement needs through drawing on a repertoire of coping strategies specific to a given situation. Gifted adolescents in college-preparatory high school programs may be faced with novel stressors, and may have unique coping strategies to manage these challenges. The current study considers responses to surveys of stress and coping as well as ...

Cumulative evidence indicates that osteoblasts and adipocytes share a common mesenchymal precursor and that bone morphogenetic proteins (BMPs) can induce both osteoblast and adipocyte differentiation of this precursor. In the present study, we investigated the roles of BMP receptors in differentiation along these separate lineages using a well-characterized clonal cell line, 2T3, derived from t...

Background: Avian infectious bronchitis (IB), with avianinfectious bronchitis virus (IBV) as the causing agent, is a ubiquitous endemicdisease of the chicken with devastating effects on its industry. A viralmembrane surface protein called S  notonly induces neutralizing antibodies but also plays an important role in virusbinding and entry to host cells. Technically, S1 protein gene sequencing a...

Thrombin is a physiological agonist that promotes platelet aggregation and secretion. In this study we observed that thrombin can also inhibit a function of platelets related to primary hemostasis. Platelet stimulation by thrombin decreased the binding of von Willebrand factor (vWF) to glycoprotein (GP) Ib and decreased ristocetin-induced agglutination, in vitro reactions that correlate with in...

Submillisecond mixing experiments and tryptophan fluorescence spectroscopy are used to address two questions raised in earlier stopped-flow studies of the folding and unfolding kinetics of sperm whale apomyoglobin. A study of the pH 4 folding intermediate (I) revealed, surprisingly, that its folding and unfolding kinetics are measurable and fit the two-state model except for a possible burst ph...

This study aimed at determining the possible exposure of wild birds to avian influenza (AI), infectious bronchitis (IB) and Newcastle disease (ND) viruses. Apparently healthy species of free flying wild birds were captured using locally-made baited traps set at strategic watering and feeding locations and in poultry farms. Few species of captive wild birds in households and live bird markets (L...

The advent of Internet has provided banks an opportunity to reduce costs, increase customer base, and mass customize by delivering their products and services through this medium. A flurry of studies on Internet banking (IB) has since emerged. The majority of these studies, however, have been directed to either IB adoption or IB service quality delivery. With few exceptions, the impact that cus...