Tierärztliche Hochschule Hannover - TiHo Bibliothek elib
Tierärztliche Hochschule Hannover - TiHo Bibliothek elib
Tierärztliche Hochschule Hannover - TiHo Bibliothek elib
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Tab. 1: Specifications of the filter setups used for fluorescence microscopy<br />
Indication Manufacturer Exciter Dichroic mirror Emitter<br />
DAPI<br />
Semrock*1 set<br />
bandpass<br />
longpass<br />
bandpass<br />
filter<br />
BFPA-basic<br />
390/18 nm<br />
416 nm<br />
460/ 60 nm<br />
exciter, dichroic:<br />
FITC filter<br />
Olympus*2<br />
U-MNB2<br />
emitter:<br />
bandpass<br />
480/20 nm<br />
longpass<br />
500 nm<br />
ET bandpass<br />
535/ 30 nm<br />
Chroma*3<br />
Cy3 filter<br />
Olympus set<br />
U-MNG 2<br />
bandpass<br />
540/10 nm<br />
longpass<br />
570 nm<br />
longpass<br />
590 nm<br />
Texas<br />
Chroma set<br />
ET bandpass<br />
ET longpass<br />
ET bandpass<br />
Red filter<br />
49008<br />
560/40 nm<br />
585 nm<br />
630/75 nm<br />
*1 Semrock, Rochester, New York, USA; *2 Olympus Deutschland GmbH, Hamburg, Germany; *3<br />
Chroma Technology Corp., Bellows Falls, Vermont, USA<br />
All images were acquired with an Olympus digital camera (Olympus U-TV1X-2 CC)<br />
using Cell^F imaging-software (Olympus Deutschland GmbH, Germany). The<br />
settings for exposure time, contrast, brightness, and pinhole were identical for each<br />
set of pictures of a figure, except when indicated otherwise in the text. To allow an<br />
improved visibility, images of some figures were adapted by linear brightness<br />
enhancement and each of the compared images of the shown figures was treated<br />
identically using Cell^F software.<br />
Quantification and comparison of fluorescence intensities<br />
To quantify fluorescence emission intensities the original acquired image data were<br />
used. Mean intensity levels (mean intensity profile, Cell^F imaging software) were<br />
calculated from indicated areas of interest, expressed as pixel grey scale values. To<br />
compare general autofluorescence of pancreatic tissue samples, mean fluorescence<br />
intensities were calculated from selected comparable image areas that display<br />
pancreatic acini as the typical histological structure, as shown for example in Fig. 2.<br />
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