Cytogenetic and molecular investigations on the holocentric chromosomes of the aphid Macrosiphum euphorbiae (Thomas, 1878)have been carried out using silver staining and C-banding (followed by chromomycin A3 and DAPI staining) in order to improve our knowledge about the structure of aphid chromosomes. The C-banding pattern is peculiar since only the two X chromosomes and a single pair of autoso...

objective(s):the aim of this study was to investigate the effects of nano-silver and garlic administration during pregnancy on neuron apoptosis in rat offspring hippocampus. materials and methods: fifty pregnant wistar rats were randomly divided into five groups: 1- nano- silver (n.s) group; 30 mg/kg of n.s treated via gavage. 2- control (c) group, administrated with distilled water via gavage....

INTRODUCTION Pneumocystis jirovecii dihydropteroate synthase (DHPS) gene mutations' (55th and 57th codon) association with prior sulfa prophylaxis failure has been reported from both developed and developing countries. We conducted a prospective study to determine the prevalence of P. jirovecii DHPS mutations from 2006 to 2009 on P. jirovecii isolates obtained from HIV-infected patients with a ...

Ag-AS staining of nucleolar organizer regions was carried out on interphasic superior cervical ganglia neurons of rats sacrificed during light and dark periods. While the Ag-AS technique has mostly been used monolayer cell lines or cell suspensions, the present study showed that in electron microscopy this technique is also applicable to small pieces of tissues. The finest pictures are obtained...

There is an increasing interest in using of silver coated (silver nitrate, silver alloy, silver oxide) catheters for hospital patients. Clinical trials with silver-coated urinary catheters have shown conflicting results. The most often performed catheterization is for a short period of time. The above observations have encouraged the authors to investigate the influence of silver nitrate (AgNO3...

We previously described X-ray histotomography, a high-resolution, non-destructive form of microtomography (micro-CT) imaging customized for three-dimensional (3D), digital histology, allowing quantitative, volumetric tissue and organismal phenotyping (Ding et al., 2019). Here, we have combined micro-CT with novel application ionic silver staining to characterize melanin distribution in whole ze...

We demonstrate a dark-field microscopic technique for real-time monitoring of DNA metallization. The growth of silver nanoparticles on DNA molecules was observed using plasmon resonance light scattering in the presence of a weak catalyst triggering photo-reduction of Ag(+). This simple strategy could facilitate the controlled fabrication of DNA-templated nanoelectronic devices.