Zobrazeno 1 - 10
of 18
pro vyhledávání: '"R. J. Weinkam"'
Publikováno v:
Investigative ophthalmologyvisual science. 31(7)
The ability of human and rabbit ocular tissues to degrade prostaglandins (PGs) was compared by following the metabolic fate of PGF2 alpha. No metabolism was observed in vitro after 5.0 hr incubation with human cornea, iris/ciliary body, or sclera, as
Publikováno v:
Clinical Chemistry. 24:45-49
We used chemical ionization mass spectrometry to quantify the cancer chemotherapeutic agent 1,3-bis(2-chloroethyl)-1-nitrosourea in biological fluids. A stable isotope-labeled internal standard was added to the fluid being analyzed. Protonated molecu
Autor:
R. J. Weinkam, M. E. Dolan
Publikováno v:
Journal of Medicinal Chemistry. 26:1656-1659
The effect of five different 1-(2-chloroethyl)-1-nitrosoureas on the growth of cultured P388 cells has been analyzed in terms of physical, chemical, and kinetic parameters that are related to the mechanism of action of this class of cancer chemothera
Publikováno v:
Chemico-Biological Interactions. 31:167-177
The rates of chemical degradation of chloroethylnitrosoureas in serum are significantly higher than in aqueous buffer at the same pH and temperature. This rate enhancement is shown to be produced by a non-specific protein mediated chemical reaction t
Autor:
Huey-shin. Lin, R. J. Weinkam
Publikováno v:
Analytical Chemistry. 51:972-975
Publikováno v:
Instrumentation Science & Technology. 5:271-281
Relatively inexpensive and simple modifications to an AEI MS-902 double focusing high-resolution mass spectrometer allow chemical ionization studies to be undertaken without compromising the instrument's high resolving power or sensitivity. A standar
Publikováno v:
The Journal of pharmacology and experimental therapeutics. 214(2)
Chloroethylnitrosoureas are anticancer agents that undergo chemical reactions in vitro and in vivo to form active alkylating agents. The rate at which lipophilic chloroethylnitrosourease decompose in serum is faster than in aqueous solution and compa
Publikováno v:
Cancer treatment reports. 62(9)
Using the technique of direct sample insertion selected ion monitoring chemical ionization mass spectroscopy, BCNU levels were measured in vivo in patients and in vitro in serum, sera ultrafiltrates, and buffered Ringer's solution. The disappearance
Autor:
M. E. Dolan, R. J. Weinkam
Publikováno v:
Chemischer Informationsdienst. 15
The effect of five different 1-(2-chloroethyl)-1-nitrosoureas on the growth of cultured P388 cells has been analyzed in terms of physical, chemical, and kinetic parameters that are related to the mechanism of action of this class of cancer chemothera
Publikováno v:
Clinical chemistry. 24(1)
We used chemical ionization mass spectrometry to quantify the cancer chemotherapeutic agent 1,3-bis(2-chloroethyl)-1-nitrosourea in biological fluids. A stable isotope-labeled internal standard was added to the fluid being analyzed. Protonated molecu