Patrick A. Barnett

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We examined in 47 dogs the effects of 5-fluorouracil, Adriamycin (doxorubicin hydrochloride), cis-platinum (cis-diamminedichloroplatinum) cyclophosphamide, and bleomycin given in association with osmotic blood-brain barrier modification. The dose of drug ranged from 100% to as little as 5 to 10% of the conventional systemic dosage. Serial neurological(More)
THINK FIRST is a national non-profit organization whose mission is to educate young people about the prevention of brain and spinal cord injuries. This paper describes a study conducted by THINK FIRST of Oregon on one of its injury prevention curricula, THINK FIRST for KIDS.
Osmotic blood-brain barrier disruption with intraarterial chemotherapy has been shown to be beneficial in the treatment of malignant brain tumors. Imaging blood-brain barrier disruption is necessary to document the extent and degree of disruption and to correlate disruption with drug delivery. The present study evaluated blood-brain barrier disruption with(More)
The inability of most chemotherapeutic agents to adequately penetrate the blood-brain barrier (BBB), in either normal brain or tumor-infiltrated brain, is a major factor limiting the use of chemotherapy in central nervous system malignancy. This barrier, however, can be opened in a reversible manner by the intra-arterial administration of hyperosmotic(More)
Four chemotherapeutic agents (cyclophosphamide, 5-fluorouracil (5-FU), methotrexate (MTX), and bleomycin) were given intravenously to rats harboring the avian sarcoma virus-induced glioma. Drug content in brain, tumor, and systemic tissue was measured. The uptake of drug and the consistency of drug levels in normal brain and tumor varied widely among these(More)
In the dog, osmotic opening of the blood-brain barrier (BBB) in the posterior circulation via the vertebral artery and in the anterior circulation via the internal carotid artery was utilized to increase the delivery of three substances of varying molecular weight to the central nervous system. The cerebrospinal fluid (CSF) concentration of all three agents(More)
Enhanced computerized tomography (CT) is a noninvasive means of monitoring blood-brain barrier (BBB) disruption. In the present study this technique was used to monitor the degree, distribution, extent, and reversibility of osmotic BBB disruption. With a canine model, the timing of administration of iodinated contrast agent was shown to be crucial to(More)
We evaluated the delivery of melanoma-specific radiolabeled monoclonal antibody (MAb) Fab fragments in a pilot study of three patients with melanoma metastatic to the central nervous system. Tumor samples demonstrated excellent immunohistochemical reactivity with Fab 96.5, specific for a 97,000-molecular-weight melanoma antigen (p97), or Fab 48.7, specific(More)