The effect of pH on silver staining of the nucleolus organizer regions (NORs) of human chromosomes has been investigated between pH 6.5 and 12.0. Nonvolatile mixtures of ethanolamine and ethanolammonium nitrate replaced the ammonia of standard procedures. The optimal NOR staining obtained at pH 3.5 by the silver staining procedure of Howell and Black served as a standard; this procedure stained all ten NORs in 90% of mitoses. Similar NOR staining was found in 75% of mitoses stained at pH 11.7 or 11.8, but only in 10-15% of mitoses stained between pH 11.6 and 10.0. Between pH 10.0 and 9.0 NOR staining was incomplete, and between pH 8.5 and 6.5 there was no NOR staining.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/10520298709107975 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ionic silver coating of orthopedic implants may impair osteogenic differentiation and mineralization.
Exp Ther Med
March 2025
OrthoLab, The Rudbeck Laboratory, Department of Surgical Sciences/Orthopedics, Uppsala University, 75185 Uppsala, Sweden.
Silver (Ag) possesses potent antimicrobial properties and is used as a coating for medical devices. The impact of silver ions released from orthopedic implants on the differentiation and osteoid formation of different osteogenic cells has yet to be systematically studied. In the present study, human mesenchymal stem cells (hMSCs) and primary human osteoblasts (hOBs) were exposed to different static Ag concentrations (0, 0.
View Article and Find Full Text PDFPhyto-mediated fabrication of silver nanoparticles from Scrophularia striata extract (AgNPs-SSE): a potential inducer of apoptosis in breast cancer cells.
Mol Biol Rep
January 2025
Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Background: Breast carcinoma stands out as the most widespread invasive cancer and the top contributor to cancer-related mortality in women. Nanoparticles have emerged as promising tools in cancer detection, diagnosis, and prevention. In this study, the antitumor and apoptotic capability of silver nanoparticles synthesized through Scrophularia striata extract (AgNPs-SSE) was investigated toward breast cancer cells.
View Article and Find Full Text PDFComparison of aesthetic perception and acceptability of silver diamine fluoride staining between Spanish and Italian parents.
Sci Rep
January 2025
Department of Pediatric Dentistry, Faculty of Dentistry, Universitat Internacional de Catalunya (UIC), Barcelona, Spain.
Assessing parental aesthetic acceptability of Silver Diamine Fluoride (SDF) staining is crucial for its potential implementation in paediatric dentistry in different regions. This study aimed to compare aesthetic perceptions and acceptance of SDF staining between Spanish and Italian parents, and assess weather acceptability is influenced by location, child's cooperation, or demographic background. A cross-sectional comparative study was conducted among Spanish and Italian parents at three university dental clinics, using a validated Italian version of the questionnaire "Parental perceptions of Silver Diamine Fluoride Dental Color Changes".
View Article and Find Full Text PDFThis study aimed to develop novel hydrogels using polycaprolactone (PCL), nano-silver (Ag), and linalool (Lin) to address the challenge of increasing antimicrobial resistance in healing infected wounds. The hydrogels' morphological properties, in vitro release profiles, antibacterial efficacy, and safety were investigated. Hydrogels were prepared from PCL/Ag, PCL/Lin, and PCL/Ag/Lin formulations and applied to infected wounds.
View Article and Find Full Text PDFTherapeutic Effects of GDF6-Overexpressing Mesenchymal Stem Cells through Upregulation of the GDF15/SIRT1 Axis in Age-Related Hearing Loss.
Front Biosci (Landmark Ed)
January 2025
Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, 330006 Nanchang, Jiangxi, China.
Background: It has been reported the therapeutic effects of mesenchymal stem cells (MSCs) on hearing loss. This study explored the therapeutic effects of growth differentiation factor 6 (GDF6) overexpression-induced MSCs (MSCs-GDF6) on age-related hearing loss (ARHL) and its underlying mechanisms.
Methods: Reverse transcription-quantitative PCR and western blotting were used to evaluate gene expression.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!