Formation of SCE was studied in lymphocytes irradiated by 60Co gamma-rays at the G1 stage of the first or second mitotic cycles. The yield of SCEs induced by irradiation in the presence of 5-bromodeoxyuridine (BrdU) proved to be significantly higher than that obtained in the absence of BrdU. The enhancing influence of BrdU on SCE induction depends on neither replication cycle nor the molecular constitution of chromosomes under irradiation. Direct modification of chromosomal radiosensitivity by BrdU is excluded. The results obtained suggest the interference of free BrdU present in culture medium with processes of DNA reparation at the G1 stage.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
DNA hypomethylation-related expression of hsa-miR-184 contributes to invasive growth of gonadotroph neuroendocrine pituitary tumors.
J Neuroendocrinol
January 2025
Department of Molecular and Translational Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.
Gonadotroph neuroendocrine pituitary tumors are among the most common intracranial neoplasms. A notable proportion of these tumors is characterized by invasive growth which hampers the treatment results and worsens prognoses of patients. Increased hsa-miR-184 expression was observed in invasive as compared to non-invasive gonadotroph tumors.
View Article and Find Full Text PDFSex-specific effects of prenatal bisphenol A exposure on transcriptome-interactome profiles of autism candidate genes in neural stem cells from offspring hippocampus.
Sci Rep
January 2025
Chulalongkorn Autism Research and Innovation Center of Excellence (Chula ACE), Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, 154 Soi Chula 12, Rama 1 Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
Bisphenol A (BPA), an endocrine-disrupting chemical, is increasingly linked to the pathogenesis of autism spectrum disorder (ASD). This study investigates the effects of prenatal BPA exposure on neural stem cells (NSCs) from the hippocampi of rat offspring, a brain region critical for neurodevelopment and implicated in ASD. Pregnant rats were administered with BPA or vehicle control once daily via oral gavage from gestational day 1 until parturition.
View Article and Find Full Text PDFLM22A-4-loaded smart mesoporous balls enhance neuroprotection and functional recovery after ischemic stroke.
Biomed Pharmacother
January 2025
Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea; Graduate Training Program of Korean Medical Therapeutics for Healthy-Aging, Pusan National University, Yangsan, Gyeongnam 50612, Republic of Korea. Electronic address:
Stroke is globally recognized as the second leading cause of death, significantly impairing both motor and cognitive functions. Enhancing regeneration after stroke is crucial for restoring these functions and necessitates strategies to promote neuroregeneration to achieve better post-stroke outcomes. Brain-derived neurotrophic factor (BDNF) plays a key role in neuroregeneration by influencing motor ability, learning, memory, and rehabilitation after stroke.
View Article and Find Full Text PDFHigh spatial resolution gene expression profiling and characterization of neuroblasts migrating in the peri-injured cortex using photo-isolation chemistry.
Front Neurosci
January 2025
Department of Developmental and Regenerative Neurobiology, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
In the ventricular-subventricular-zone (V-SVZ) of the postnatal mammalian brain, immature neurons (neuroblasts) are generated from neural stem cells throughout their lifetime. These V-SVZ-derived neuroblasts normally migrate to the olfactory bulb through the rostral migratory stream, differentiate into interneurons, and are integrated into the preexisting olfactory circuit. When the brain is injured, some neuroblasts initiate migration toward the lesion and attempt to repair the damaged neuronal circuitry, but their low regeneration efficiency prevents functional recovery.
View Article and Find Full Text PDFDisruption of BMP and FGF signaling prior to blastema formation causes permanent bending and skeletal malformations in Poecilia latipinna tail fin.
Zoology (Jena)
January 2025
Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India. Electronic address:
Teleost fish, such as Poecilia latipinna, exhibit remarkable regenerative capabilities, making them excellent models for studying tissue regrowth. They regenerate body parts like the tail fin through epimorphic regeneration, involving wound healing, blastema formation (a pool of proliferative cells), and tissue differentiation. Bone Morphogenetic Protein (BMP) and Fibroblast Growth Factor (FGF) signaling pathways play crucial roles in this process, but their specific functions during blastema formation remain unclear.
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!