Abstract：
:Ammonium salt of N-(dithiocarboxy)sarcosine (DTCS) chelated to ferrous salt was tested as an NO-metric spin trap at room temperature for ex vivo measurement of (.)NO production in murine endotoxaemia. In a chemically defined in vitro model system EPR triplet signals of NO-Fe(DTCS)(2) were observed for as long as 3 hours, only if samples were reduced with sodium dithionite. This procedure was not necessary for the ex vivo detection of (.)NO in endotoxaemic liver homogenates at X-band or in the whole intact organs at S-band, whereas only a weak signal was observed in endotoxaemic lung. These results suggest that in endotoxaemia not only high level of (.)NO, but also the redox properties of liver and lung might determine the formation of complexes of (.)NO with a spin trap. Nevertheless, both S- and X-band EPR spectroscopy is suitable for (.)NO-metry at room temperature using Fe(DTCS)(2) as the spin trapping agent. In particular, S-band EPR spectroscopy enables the detection of (.)NO production in a whole organ, such as murine liver.
journal_name
Acta Biochim Poljournal_title
Acta biochimica Polonicaauthors
Plonka PM,Wisniewska M,Chlopicki S,Elas M,Rosen GMdoi
035003799subject
Has Abstractpub_date
2003-01-01 00:00:00pages
799-806issue
3eissn
0001-527Xissn
1734-154Xjournal_volume
50pub_type
杂志文章abstract：:A number of antiviral lectins, small proteins that bind carbohydrates found on viral envelopes, are currently in pre-clinical trials as potential drugs for prevention of transmission of human immunodeficiency virus (HIV) and other enveloped viruses, such as the Ebola virus and the coronavirus responsible for severe ac...
journal_title：Acta biochimica Polonica
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journal_title：Acta biochimica Polonica
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更新日期：2009-01-01 00:00:00
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journal_title：Acta biochimica Polonica
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doi：
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