Post-transcriptional regulation of stem cell self-renewal by microRNAs is emerging as an important mechanism controlling tissue homeostasis. Here, we provide evidence that bantam microRNA controls neuroblast number and proliferation in the Drosophila central brain. Bantam also supports proliferation of transit-amplifying intermediate neural progenitor cells in type II neuroblast lineages. The stem cell factors brat and prospero are identified as bantam targets acting on different aspects of these processes. Thus, bantam appears to act in multiple regulatory steps in the maintenance and proliferation of neuroblasts and their progeny to regulate growth of the central brain.
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http://dx.doi.org/10.1242/dev.127209 | DOI Listing |
J Neurosurg Case Lessons
December 2024
Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
Background: Diffuse leptomeningeal glioneuronal tumor (DLGNT) is a rare central nervous system tumor, especially in adult females. Typically, it presents with leptomeningeal enhancements in the basal cisterns and spinal cord. However, varied radiological and pathological features can complicate the diagnosis, as the present case illustrates.
View Article and Find Full Text PDFNeurology
January 2025
Department of Neurology, Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland.
Background And Objectives: Mesial temporal lobe epilepsy (mTLE) is generally associated with focal brain atrophy, but little knowledge exists on possible disease-related hypertrophy of brain structures. We hypothesized that repeated seizures or adaptive plasticity may lead to focal brain hypertrophy and aimed to investigate associated clinical correlates.
Methods: In this cohort study, we included patients with mTLE undergoing detailed epilepsy evaluations and matched healthy volunteers (HVs) from 2 tertiary centers (discovery and validation cohorts).
PLoS One
December 2024
School of Biomedical Sciences, Monash University, Melbourne, Victoria, Australia.
A central topic in neuroscience is the neural coding problem which aims to decipher how the brain signals sensory information through neural activity. Despite significant advancements in this area, the characterisation of information encoding through the precise timing of spikes in the somatosensory cortex is limited. Here, we utilised a comprehensive dataset from previous studies to identify and characterise temporal response patterns of Layer 4 neurons of the rat barrel cortex to five distinct stimuli with varying complexities: Basic, Contact, Whisking, Rough, and Smooth.
View Article and Find Full Text PDFInt J Surg
December 2024
Department of Anesthesiology, Third Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.
Background: Hand-foot syndrome (HFS) and oral mucositis (OM) are common adverse events during cancer chemotherapy and can significantly decrease patients' quality of life and chemotherapy adaptation, however, prevention strategies of these complications yet to be established.
Methods: Patients with stage I-III breast cancer, who had surgery and needed pegylated liposomal doxorubicin (PLD)-based adjuvant chemotherapy were screened, recruited and randomly assigned to receive either probiotics or placebo (three capsules, twice/day) treatment during the course of chemotherapy from Nov. 2019 to Aug.
Int J Surg
December 2024
Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.
Background: Central nervous system (CNS) cancers are highly lethal and increasingly affect younger populations aged 20-49, posing significant challenges to global healthcare systems. Current research on early-onset CNS cancer trends is limited and outdated, with uncertain impacts from the COVID-19 pandemic. This study explores the epidemiology of early-onset CNS cancer and the pandemic's effects.
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