Postmortem tissue levels of polychlorinated biphenyls in female rhesus monkeys after more than six years of daily dosing with Aroclor� 1254 and in their non-dosed offspring

1995 ◽  
Vol 29 (1) ◽  
pp. 69-76 ◽  
Author(s):  
J. Mes ◽  
D. L. Arnold ◽  
F. Bryce
Keyword(s):  
Polychlorinated Biphenyls ◽  
Rhesus Monkeys ◽  
Aroclor 1254 ◽  
Tissue Levels ◽  
Female Rhesus

The effect of long-term feeding of Aroclor 1254 to female Rhesus monkeys on their polychlorinated biphenyl tissue levels

1989 ◽  
Vol 18 (6) ◽  
pp. 858-865 ◽  
Author(s):  
Jos Mes ◽  
Douglas L. Arnold ◽  
Fred Bryce ◽  
David J. Davies ◽  
Kazimierz Karpinski
Keyword(s):  
Rhesus Monkeys ◽  
Polychlorinated Biphenyl ◽  
Aroclor 1254 ◽  
Tissue Levels ◽  
Female Rhesus

scholarly journals Leaching Rate of Polychlorinated Biphenyls (PCBs) from Marine Paint Chips

2021 ◽  
Author(s):  
Allen D. Uhler ◽  
Jeffery H. Hardenstine ◽  
Deborah A. Edwards ◽  
Guilherme R. Lotufo
Keyword(s):  
Polychlorinated Biphenyls ◽  
Surface Waters ◽  
Leaching Rate ◽  
Short Term ◽  
Aroclor 1254 ◽  
Maintenance And Repair ◽  
Potential Source ◽  
Vessel Bottom ◽  
Dissolved Phase ◽  
Over Time

AbstractPolychlorinated biphenyls (PCBs) were added to certain marine vessel bottom paints as a plasticizer to improve the adhesion and durability of the paint. The most common PCB formulation used to amend such paints was Aroclor 1254. Fugitive Aroclor-containing paint chips generated from vessel maintenance and repair operations represent a potential source of PCB contamination to sediments. Limited published studies indicate that Aroclor-containing paint is largely inert and exhibits low PCB leaching into water; however, the rate and degree of leaching of PCBs from paint chips have not been directly studied. This laboratory-based study evaluated the rate and extent of leaching of PCBs from paint chips into freshwater. The results of this investigation demonstrate that the rate of PCB dissolution from paint chips decreased rapidly and exponentially over time. Based on this study, it is estimated that the rate of leaching of PCBs from paint chips would cease after approximately 3 years of exposure to water. When all leachable PCBs were exhausted, it is estimated that less than 1% of the mass of PCBs in the paint chips was amenable to dissolution. The results of this experiment suggest that Aroclor-containing paint chips found in sediments are likely short-term sources of dissolved-phase PCB to pore or surface waters and that the majority of the PCBs in paint chips remain in the paint matrix and unavailable for partitioning into water. Graphic Abstract

Biological activity associated with noncoplanar polychlorinated biphenyls after microbial dechlorination of aroclor 1242® and aroclor 1254®

2000 ◽  
Vol 19 (5) ◽  
pp. 1311-1316 ◽  
Author(s):  
Patricia E. Ganey ◽  
John F. Quensen ◽  
Mahmoud A. Mousa ◽  
Stephen A. Boyd ◽  
Margaret A. Wagner ◽  
...  
Keyword(s):  
Biological Activity ◽  
Polychlorinated Biphenyls ◽  
Aroclor 1254 ◽  
Aroclor 1242 ◽  
Microbial Dechlorination

Androgen Receptors in the Cerebral Cortex of Fetal Female Rhesus Monkeys*

Endocrinology ◽  
1986 ◽  
Vol 119 (4) ◽  
pp. 1625-1631 ◽  
Author(s):  
SAMUEL A. SHOLL ◽  
STEVEN M. POMERANTZ
Keyword(s):  
Cerebral Cortex ◽  
Rhesus Monkeys ◽  
Androgen Receptors ◽  
Female Rhesus

THE EFFECTS OF DEXAMETHASONE AND ANDROGENS ON SEXUAL RECEPTIVITY OF FEMALE RHESUS MONKEYS

1971 ◽  
Vol 51 (3) ◽  
pp. 575-588 ◽  
Author(s):  
B. J. EVERITT ◽  
J. HERBERT
Keyword(s):  
Rhesus Monkeys ◽  
Testosterone Propionate ◽  
Secretory Activity ◽  
Urinary Free Cortisol ◽  
Sexual Receptivity ◽  
Adrenal Androgens ◽  
Electrolyte Metabolism ◽  
Free Cortisol ◽  
Female Rhesus ◽  
The Central Nervous System

SUMMARY The effect of dexamethasone, given either alone or together with testosterone propionate or androstenedione, was studied in nine female rhesus monkeys (paired with three males) by making quantitative observations on behaviour in the laboratory. Dexamethasone (0·5 mg/kg/day) given to oestrogen-treated ovariectomized female monkeys made them sexually unreceptive, and there was an associated decline in the level of the male's mounting activity. Testosterone propionate (100 or 200 μg/day) reversed completely the effects of dexamethasone on sexual behaviour. Androstenedione (100, 200 or 400 μg/day) had similar, but less marked, effects whereas cortisol (10 mg/day) or progesterone (100, 200 or 500 μg/day) were ineffective. Treating a female with testosterone prevented dexamethasone from reducing sexual receptivity. Parallel determinations of urinary free cortisol showed that the dexamethasone had suppressed the secretory activity of the adrenal cortex. There were no consistent changes, under any treatment, in the females' vaginal epithelia, sexual skins or clitorides, or in their water or electrolyte metabolism. These findings indicate that adrenal androgens regulate sexual receptivity in these female primates, probably by an action on the central nervous system.

Controlled exposure of female rhesus monkeys to 2,3,7,8-TCDD: Concentrations of TCDD in fat of offspring, and its decline over time

Chemosphere ◽  
1990 ◽  
Vol 20 (7-9) ◽  
pp. 1199-1202 ◽  
Author(s):  
R.E. Bowman ◽  
H.Y. Tong ◽  
M.L. Gross ◽  
S.J. Monson ◽  
N.C.A. Weerasinghe
Keyword(s):  
Rhesus Monkeys ◽  
Female Rhesus ◽  
Controlled Exposure ◽  
Over Time

Negative feedback effects of oestradiol-17ß on luteinizing hormone in female rhesus monkeys under different seasonal conditions

1985 ◽  
Vol 108 (1) ◽  
pp. 31-35
Author(s):  
J. G. Herndon ◽  
M. S. Blank ◽  
D. R. Mann ◽  
D. C. Collins ◽  
J.J. Turner
Keyword(s):  
Luteinizing Hormone ◽  
Breeding Season ◽  
Negative Feedback ◽  
Rhesus Monkeys ◽  
Feedback Effects ◽  
Female Rhesus ◽  
Time Of Year

Abstract. Suppression of luteinizing hormone (LH) by sc implanted oestradiol-17ß (E2) pellets was examined in 4 ovariectomized female rhesus monkeys during the breeding season, the non-breeding season and during the transition between the breeding and non-breeding season. Immunoreactive LH was suppressed to 58, 78 and 75% of untreated levels for the respective seasonal conditions. Bioactive LH was suppressed to 29, 49 and 33% of baseline. Bioactive LH (determined by testoster-one release from rat interstital cells) was significantly correlated (r = 0.84) with immunoactive LH from the same samples. It is concluded that E2 treatment of ovariectomized female rhesus monkeys results in suppressed levels of LH, regardless of the time of year.

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