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Polychlorinated biphenyl occurrence in American alligators (Alligator mississippiensis) from Louisiana and South Carolina

Autor: T. A. Bargar, George P. Cobb, P.D Houlis

Publikováno v: Environmental pollution (Barking, Essex : 1987). 118(1)

Few studies have evaluated PCB concentrations in alligators. This is the first comparison of PCB concentrations in alligators eggs from the southeastern United States. Eggs were collected from Bear Island and Winyah Bay, South Carolina and from the R

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de61e2018142dc142849302a8cf98023
https://pubmed.ncbi.nlm.nih.gov/11996374

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Maternal transfer of contaminants: case study of the excretion of three polychlorinated biphenyl congeners and technical-grade endosulfan into eggs by white Leghorn chickens (Gallus domesticus)

Autor: T A, Bargar, G I, Scott, G P, Cobb

Publikováno v: Environmental toxicology and chemistry. 20(1)

Reported avian maternal transfer rates of organochlorine contaminants range from 1% to as much as 20% of maternal body burdens. However, to our knowledge, no investigation of factors governing maternal transfer has been reported. Here, we report an i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6472b4c6cb97d7a85db13c714c8da978
https://pubmed.ncbi.nlm.nih.gov/11351416

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Uptake and distribution of three PCB congeners and endosulfan by developing white leghorn chicken embryos (Gallus domesticus)

Autor: George P. Cobb, G. I. Scott, T. A. Bargar

Publikováno v: ResearcherID

The distributions of PCB 105, 156, 189, and endosulfan in incubating, maternally exposed, viable white leghorn chicken eggs (Gallus domesticus) were investigated. Hens were subcutaneously injected every 4 days with a mixture of the above chemicals. O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bbdef83027c86452230d228071bdd8d
https://pubmed.ncbi.nlm.nih.gov/11598789

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Relative distribution of polychlorinated biphenyls among tissues of neonatal American alligators (Alligator mississippiensis)

Autor: C. Sills-McMurry, W. E. Rhodes, T. A. Bargar, R. L. Dickerson, George P. Cobb

Publikováno v: ResearcherID

Recent papers have investigated the utility of chemical analysis of the chorioallantoic membrane (CAM) as a nonlethal indicator of avian and reptilian exposure to persistent environmental contaminants. This study was undertaken to evaluate the chemic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aea7f2140c19e371418246965c0c86af
https://pubmed.ncbi.nlm.nih.gov/10473793

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Molluscicide acute and sub-chronic toxicity to the three non-target organisms Hexagenia limbata, Ceriodaphnia dubia, and Pimephelas promelas, and neutralization of that toxicity by bentonite clay

Autor: T. A. Bargar, Susan W. Fisher

Publikováno v: Bulletin of environmental contamination and toxicology. 58(2)

Three non-target organisms were used in this study to investigate H-130 toxicity; Hexagenia limbata (larval mayfly nymphs), Ceriodaphnia dubia, and larval Pimephelas promelas. Hexagenia limbata was chosen as a representative benthic organism likely t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad8fe6cbb3758218ed12f13519df59f1
https://pubmed.ncbi.nlm.nih.gov/8975805

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A 'new' allele at the C pigment locus in the fowl

Autor: J. A. Brumbaugh, T. W. Bargar, William S. Oetting

Publikováno v: Journal of Heredity. 74:331-336

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b626e9e43cc1c9865ceb677f0937b2cc
https://doi.org/10.1093/oxfordjournals.jhered.a109804

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A Rapid and Efficient Method for Dehydration of Primary Amides to Nitriles. Preparation of Acrylonitrile Derivatives

Autor: T. M. Bargar, C. M. Riley

Publikováno v: Synthetic Communications. 10:479-487

Chloromethylene iminium salts (Vilsmeier reagents) have a long history and thoroughly investigated chemistry(1). Chloro-N, N-dimethylforminium chloride 1 is most conveniently generated by the reaction of N, N-dimethylformamide (DMF) with oxalyl chlor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3acb780a56c1172a797b79991d701333
https://doi.org/10.1080/00397918008064272

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3,4-Dihydro-2-phenyl-2H-pyrano[2,3-b]pyridines. Novel aza analogs of flavans

Autor: T. M. Bargar, Thomas Michael Wilson, J. K. Daniel

Publikováno v: Journal of Heterocyclic Chemistry. 22:1583-1592

Complementary approaches to the synthesis of the title compounds 1 are described. Metallation of 3,5-di-bromo-2-methoxypyridine (5b) by bromine/lithium exchange gave selectively the 3-lithio intermediate 6 which was trapped with substituted cinnamald

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8d058a4f626bff1b461e7772b116f0a
https://doi.org/10.1002/jhet.5570220624

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Synthesis of 9,10,11,12,12a,13-hexahydro-2,3-dimethoxy-7H-naphtho[l, 2-b]quinolizine hydrobromide. A cell growth inhibitor related to cryptopleurine

Autor: J. K. Dulworth, M. C. Graham, T. M. Bargar

Publikováno v: Journal of Heterocyclic Chemistry. 21:261-263

9,10,11,12,12a,13-Hexahydro-2,3-dimethoxy-7H-naphtho[1,2--6]quinolizine hydrobromide (4), which has structural similarity to cell growth inhibitory alkaloid cryptopleurine (1), was found to inhibit the growth of HeLa cells by 50% versus control at a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::176b5591f13185a3bee3491130c1ffd1
https://doi.org/10.1002/jhet.5570210153

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In vitro antiviral activity of the 6-substituted 2-(3',4'-dichlorophenoxy)-2H-pyrano[2,3-b]pyridines MDL 20,610, MDL 20,646, and MDL 20,957

Autor: J K Dulworth, M. C. Graham, A. M. Manelli, Michael T. Kenny, T M Bargar, H L Torney

Publikováno v: Antimicrobial Agents and Chemotherapy. 30:516-518

The 6-substituted 2-(3',4'-dichlorophenoxy)-2H-pyrano[2,3-b]pyridines MDL 20,610 (6-SO2CH3), MDL 20,646 (6-Br), and MDL 20,957 (6-Cl) are potent antirhinovirus compounds with median plaque 50% inhibitory concentrations (IC1/2s) of 0.03, 0.006, and 0.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f044b4414bfb9a65585799bd4220f08a
https://doi.org/10.1128/aac.30.3.516

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