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Mice engineered for conditional, cell type-specific gene inactivation have dominated the field of mouse genetics because of the high efficiency of Cre-loxP-mediated recombination. Recent advances in CRISPR/Cas9 technologies have provided alternatives for rapid gene mutagenesis for loss-of-function (LOF) analysis. Whether these strategies can be streamlined for rapid genetic analysis with the efficiencies comparable with those of conventional genetic approaches has yet to be established. We show that a single adeno-associated viral (AAV) vector containing a recombinase-dependent Staphylococcus aureus Cas9 (SaCas9) and a single guide RNA (sgRNA) are as efficient as conventional conditional gene knockout and can be adapted for use in either Cre- or Flp-driver mouse lines. The efficacy of this approach is demonstrated for the analysis of GABAergic, glutamatergic, and monoaminergic neurotransmission. Using this strategy, we reveal insight into the role of GABAergic regulation of midbrain GABA-producing neurons in psychomotor activation.
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http://dx.doi.org/10.1016/j.celrep.2020.02.092 | DOI Listing |
Stat Med
September 2025
Berry Consultants, Abingdon, UK.
Confidence distributions are a frequentist alternative to the Bayesian posterior distribution. These confidence distributions have received more attention in the recent past because of their simplicity. In rare diseases, oncology, or in pediatric drug development, single-arm trials, or platform trials consisting of a series of single-arm trials are increasingly being used, both to establish proof-of-concept and to provide pivotal evidence for a marketing application.
View Article and Find Full Text PDFAcad Radiol
September 2025
Department of Radiology, Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey (E.E.).
Purpose: This study aimed to evaluate the performance of ChatGPT (GPT-4o) in interpreting free-text breast magnetic resonance imaging (MRI) reports by assigning BI-RADS categories and recommending appropriate clinical management steps in the absence of explicitly stated BI-RADS classifications.
Methods: In this retrospective, single-center study, a total of 352 documented full-text breast MRI reports of at least one identifiable breast lesion with descriptive imaging findings between January 2024 and June 2025 were included in the study. Incomplete reports due to technical limitations, reports describing only normal findings, and MRI examinations performed at external institutions were excluded from the study.
J Neurol Sci
September 2025
Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, United States of America.
Background: A key limitation of the IMPACT model for prognostication after severe traumatic brain injury (TBI) is the use of predictors from hospital admission only. We sought to identify if including daily blood labs (e.g.
View Article and Find Full Text PDFSemin Arthritis Rheum
August 2025
Aberdeen Centre for Arthritis and Musculoskeletal Health (Epidemiology Group), University of Aberdeen, Aberdeen AB25 2ZD, UK. Electronic address:
Objective: To evaluate the performance of the 2016 revisions to the modified fibromyalgia criteria (FM2016) in identifying individuals with self-reported fibromyalgia in a large population sample, and to test whether simplified symptom thresholds and alternative definitions of widespread pain improve case-finding utility.
Methods: We used data from 167,184 UK Biobank participants who completed an "Experience of Pain" online questionnaire. Logistic regression and clinical utility indices (CUI+ and CUI-) were used to assess the performance of the FM2016 criteria and alternative modifications in case-finding and screening self-reported fibromyalgia diagnoses.
Stat Methods Med Res
September 2025
Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.
This study describes and compares the performance of several semi-parametric statistical modeling approaches to dynamically classify subjects into two groups, based on an irregularly and sparsely sampled curve. The motivating example of this study is the diagnosis of a complication following cardiac surgery, based on repeated measures of a single cardiac biomarker where early detection enables prompt intervention by clinicians. We first simulate data to compare the dynamic predictive performance over time for growth charts, conditional growth charts, a varying-coefficient model, a generalized functional linear model and longitudinal discriminant analysis.
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