In SOFI, the decrease in visibility with increasing labeling density is less pronounced and is due to the decreased relative intensity fluctuations.
Herein, we modify this scaffold to include lipophilic alkyl chains to generate a series of contrast agents that label the cell membrane with increased labeling efficiency, retention, and MR image contrast compared to nonlipophilic monomeric Gd III) contrast agents (Prohance and an azide-modified Gd III) complex, 4).
As in C rats, Zn-positive areas were observed in the stratum moleculare of the dentate gyrus, the hilus of CA4, and the strata radiatum and oriens of CA3, CA2, and CA1, with increased labeling in the hilus of CA4 and in 2 bands adjacent to the pyramidal cell layer of CA3 located in the strata radiatum and oriens (Fig. 9 A – C ).
Several trends are emerging: first, increasing labelling density with multiplexed markers to allow more cells to be reliably distinguished; second, using labels to report lineage relationships among defined cells in addition to anatomy; third, coupling cell labelling with genetic manipulations that reveal or perturb cell function.
In the regions of active encephalitis, there was evidence of increased labelling with both pS6 antibodies.
Although the p21 labelling index showed a trend towards increased labelling with higher grade, this was not significant.
In the application of improving cellular contrast agent uptake, results obtained with ferumoxides and protamine show increasing labeling efficiencies with protamine [ 17, 28, 29].
The Bpe construct contained unique cysteine mutations T3C, N31C, or E94C for maleimide labeling, with an R29K background to increase labeling by the succinimidyl ester.
This loss contrasted with an apparent increased labeling for large VGLUT2-containing terminals in the SGL of the dorsal DG (Fig. 1c′, arrows) compared with control animals (Fig. 1a′).
However, we observed that increasing the reaction temperature from room temperature to 37 °C for 1 to 2 h increased labeling with the sulfone compound (data not shown).
