P H Sizaret

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 Interaction between nucleic acid and recombinant murine prion protein, MoPrPC resulted in a time-dependent change in the nucleic acid morphology revealed by electron microscopy. After the addition of the protein to DNA, association of small number of nucleic acid molecules (nucleo-protein complex) was followed by aggregation of large number of them still(More)
Serum alphafetoprotein (AFP) levels were determined by radioimmunoassay for 80 patients with primary hepatocellular carcinoma (PHC), 40 with metastatic liver cancer (MLC), and 204 controls; all were Caucasians of Greek nationality. Among histologically confirmed PHC cases, 62% had more than 1000 International Units per millilitre (IU/ml) AFP. Only one case(More)
The reactivity of sera from 19 patients with trophoblastic disease was analyzed in analytic immunoelectrophoresis using rabbit and human pregnancy specific beta-1 glycoprotein (SP1) antisera. Molecular heterogeneity of SP1 was demonstrated in crossed immunoelectrophoresis and a "SP1 consuming factors" was found in serum from a patient with choriocarcinoma.(More)
Rabbit (outbred albino New Zealand White) antisera have been raised against aflatoxin B1 (AFB1) using as immunogen conjugates in which the hapten was coupled to bovine serum albumin (BSA) either through C1 or C8 with the oxime and the dichloride derivatives of AFB1 as intermediates. Radioimmunoassay (RIA), with [3H]AFB1 as tracer, showed that the antiserum(More)
We reported previously on the properties of an anti-aflatoxin B1 (AFB) antiserum raised with a conjugate in which AFB is coupled at the C8 position to bovine serum albumin (BSA). The hapten/carrier protein molar ratio of the conjugate was 14. We have since been able to optimize the coupling conditions, resulting in the preparation of another conjugate, with(More)
Sera of 1,333 African, Caucasian, Chinese and Malay males over 15 years from four countries were randomly assayed for alpha-fetoprotein (AFP) by the radioimmunoassay. The average AFP level was 2.97 IU/ml (+ 2 SD = 8.78, -2 SD = 1.00) which can be compared with previously published figures ranging from 2.3 to 1.2 ng/ml. Average values increased with age and(More)
Diabodies are recombinant, dimeric, antibody-based molecules composed of two non-covalently associated single-chain antibody fragments that bind to an antigen in a divalent manner. In an attempt to develop more effective therapeutic molecules against scorpion venoms, we designed a diabody derived from monoclonal antibody 9C2, which neutralizes the toxicity(More)
There have been several reports on the possible value of measurements of circulating immune complexes for the diagnosis of human breast cancer. To begin to evaluate this possibility and the comparability of results among laboratories, a cooperative study was organized under the auspices of the International Agency for Research on Cancer and the National(More)
Alpha-Fetoprotein (AFP) levels of 1,335 males (15 years and older) of seven ethnic groups (Chinese, Indians, and Malays from Singapore, Caucasians from Lyon, and Blacks from Nairobi, forest, and the savanna region of the Ivory Coast) were determined by radioimmunoassay. A few elevated levels (up to 30 nanounits/ml) were detected in some normal individuals,(More)