A study has been made of the effects of lead on developing muscle using a cell culture system. When the L6 clonal cell line was treated with lead acetate in culture during the first or second day after plating (but not at later times) fusion of cells to form skeletal muscle straps was inhibited. This inhibition was not due to a general toxic effect of lead on the cells since cell division continued at a normal rate during the first 10 days of culture after lead addition. When cells were examined ultrastructurally using stereology, the only apparent effect of lead was a change in mitochondrial size and configuration. Five times as many partially condensed mitochondria were seen in lead treated cells, and mitochondrial size was also significantly increased. Lead appears to effect a very early event in cell fusion since gap junction formation (a necessary event in fusion) and some synthesis of myofibrils occur even in the presence of lead.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Dynamic electroosmotic flow and solute dispersion through a nanochannel filled with an electrolyte surrounded by a layer of a dielectric and immiscible liquid.
Soft Matter
January 2025
Department of Mathematics, National Institute of Technology Durgapur, Durgapur-713209, India.
The present article deals with the modulation of oscillatory electroosmotic flow (EOF) and solute dispersion across a nanochannel filled with an electrolyte solution surrounded by a layer of a dielectric liquid. The dielectric permittivity of the liquid layer adjacent to supporting rigid walls is taken to be lower than that of the electrolyte solution. Besides, the aforesaid liquid layer may bear additional mobile charges, , free lipid molecules, charged surfactant molecules , which in turn lead to a nonzero charge along the liquid-liquid interface.
View Article and Find Full Text PDF[Pneumocystis pneumonia].
Klin Mikrobiol Infekc Lek
September 2023
Clinic of Infectious Diseases, Faculty of Medicine, Masaryk University, University Hospital Brno, Czech Repubic, e-mail:
In parallel with the introduction of modern therapeutic and pharmacological interventions that have successfully resolved many diseases and conditions, previously deemed incompatible with life, there has been a significant increase in the number of patients experiencing secondary immunodeficiency. As a result, these patients are highly susceptible to various opportunistic infections. Among these infections, pneumocystis pneumonia (PCP) stands out as one of the most frequent and potentially life-threatening ones, necessitating prompt diagnosis and treatment.
View Article and Find Full Text PDFExploring the neuroprotective benefits of phytochemicals extracted from indigenous edible fruits in Bangladesh.
Animal Model Exp Med
January 2025
Department of Pharmacy, Faculty of Health and Life Sciences, Daffodil International University, Dhaka 1207, Bangladesh.
The increasing incidence of neurodegenerative diseases (NDs) and the constraints of existing treatment methods have spurred a keen interest in investigating alternative therapies. Medicinal plants, renowned for their long-standing use in traditional medicine, offer a hopeful avenue for discovering new neuroprotective agents. This study emphasizes the potential neuroprotective characteristics of edible fruit plants in Bangladesh, specifically focusing on their traditional folk medicine uses for neurological disorders.
View Article and Find Full Text PDFMircoRNAs predict and modulate responses to chemotherapy in leukemic patients.
Naunyn Schmiedebergs Arch Pharmacol
January 2025
Oral Biology Department, Faculty of Dentistry, Galala Plateau, Galala University, 15888), Attaka, Suez Governorate, Egypt.
Leukemia covers a broad category of cancer malignancies that specifically affect bone marrow and blood cells. While different kinds of leukemia have been identified, effective treatments are still lacking for most forms, and even those treatments considered effective can lead to relapses. MicroRNAs, or miRNAs, are short endogenous non-coding single-stranded RNAs that help control the epigenetics of gene expression.
View Article and Find Full Text PDFRiparian Soil Heavy Metal Contamination and Pollution Assessment and Management Planning Integrating Multiple Indices, Statistical and Geospatial Approaches.
Environ Manage
January 2025
Department of Engineering, Reykjavik University, Reykjavík, Iceland.
This research assesses heavy metal contamination within the riparian zone of the Danro River, a tributary of the Ganges River basin in India, particularly impacted by sand mining activities. The study conducted analyses on major and trace elements in soil samples, focusing on those identified as ecologically hazardous by the Water Framework Directive of India. Utilizing a combination of indices (Enrichment Factor, Pollution Load Index, and Index of geo-accumulation) and statistical techniques such as Principal Component Analysis (PCA), the investigation aimed to evaluate contamination severity, ecological risks, and pollution sources.
View Article and Find Full Text PDFWant 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!