polychlorinated biphenyl

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pol·y·chlo·rin·at·ed biphenyl


polychlorinated biphenyl

(Elements & Compounds) any of a group of compounds in which chlorine atoms replace the hydrogen atoms in biphenyl: used in industry in electrical insulators and in the manufacture of plastics; a toxic pollutant that can become concentrated in animal tissue. Abbreviation: PCB

polychlorinated biphenyl (PCB)

n bifenilo policlorado (BPC), policlorobifenilo
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Low concentrations of Aroclor 1242, estradiol 17b, and tamoxifen were added to the cultures of MCF-7 cells.
12) reported a similar time dependent behavior to hold for the stress relaxation moduli of 20% polystyrene in Aroclor for different strain values, except at very short times below 15 s.
Developmental exposure to Aroclor 1254 produces low frequency alterations in adult rat brainstem auditory evoked responses.
25 ppm of Aroclor 1254[R], a mixture of 52 PCB congeners, via maternal diet, to determine the effect on leptin and thyroid hormones.
In 1989, the level of Aroclor 1254 (a mixture of polychlorinated biphenyls with 42 percent chlorine by weight) in fish collected from a recreational pond in Toledo, Ohio, was reported to be 44.
Protective Effect of Quercetin on Aroclor 1254-Induced Oxidative Damage in Cultured Chicken Spermatogonial Cells.
The S9 fraction was prepared from the pooled liver homogenate of 2 male Sprague-Dawley rats previously induced with Aroclor 1254, by the method of Garner et al.
In this study, we examined multigenerational effects of PCB on Sprague-Dawley rats fed a diet containing one of three types of PCB (PCB 77, PCB 47, or AROCLOR 1254) in one of two concentrations (1.
Developmental exposure of rats to a reconstituted PCB mixture and Aroclor 1245: effects on organ weights, aromatase activity, sex hormone levels, and sweet preference behavior.
Sprague-Dawley rats were obtained that had been exposed to Aroclor 1254[R] in the diet at 1.
Brackets indicate "minor" coeluting congeners based on Aroclor concentration (Hansen 1999).