Gregory B Bulkley

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Obesity is associated with an increased incidence of infection, diabetes, and cardiovascular disease, which together account for most obesity-related morbidity and mortality. Decreased expression of leptin or of functional leptin receptors results in hyperphagia, decreased energy expenditure, and obesity. It is unclear, however, whether defective(More)
The potential role of oxygen free radicals in hCG-induced ovulation was investigated using the free radical scavenging enzymes superoxide dismutase (SOD) and/or catalase with the in-vitro perfused rabbit ovary preparation. SOD (25 micrograms/ml) and SOD + catalase (25 micrograms/ml) significantly reduced the % of large follicles that ovulated during(More)
An in vivo assay to quantify simultaneously two important components of hepatic reticuloendothelial system (RES) function--clearance and phagocytic killing--was developed in the rat. Intravenously injected E. coli labeled with Na51Cr and 5-[125I]-iodo-2'-deoxyuridine were cleared rapidly from the blood primarily by the liver. While hepatic 51Cr levels(More)
Fas-Fas ligand (FasL)-dependent pathways exert a suppressive effect on inflammatory responses in immune-privileged organs. FasL expression in hepatic Kupffer cells (KC) has been implicated in hepatic immunoregulation. In this study, modulation of FasL expression of KC by endogenous gut-derived bacterial LPS and the role of reactive oxygen species (ROS) as(More)
  • G Bulkley, R D F Harris, R Herrerias, George Bulkley
  • 2002
Models in behavioural finance have been developed to explain apparent anomalies in stock returns. A property common to a number of these models is that agents under react in the short run to public signals about future earnings. This contrasts sharply with the popular informal belief that stock prices overreact to news. A behavioural model also predicts(More)
Toxic oxidants (oxygen free radicals) have been implicated in the formation of brain edema from ischemia-reperfusion injury or tumor growth. We investigated the ability of an iron chelator, a calcium channel blocker, and a xanthine oxidase inhibitor to reduce formation of brain edema following a cold lesion in cats. The agents were given independently of(More)
We evaluated the potential role of SOD, an oxygen free radical scavenger, as a probe to cover the trigger period of injury and the prolonged period of development of edema in vasogenic brain edema. Vasogenic brain edema was produced in 34 cats by a standardized cortical freezing lesion. Brain edema and the disruption in the BBB were assessed by SG(More)
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