CRISPR/Cas9 methods are a powerful approach to edit the genome of . To convert existing lines to driver lines in a secondary school classroom setting, we applied the CRISPR-based genetic approach to a collection of 'driver' lines. The integration of the coat color marker into homology-assisted CRISPR knock-in (HACK) enabled visual selection of -to- conversions using brightfield stereo-microscopy available in a broader set of standard classrooms.
View Article and Find Full Text PDFConditional gene regulation in Drosophila through binary expression systems like the LexA-LexAop system provides a superb tool for investigating gene and tissue function. To increase the availability of defined LexA enhancer trap insertions, we present molecular, genetic, and tissue expression studies of 301 novel Stan-X LexA enhancer traps derived from mobilization of the index SX4 line. This includes insertions into distinct loci on the X, II, and III chromosomes that were not previously associated with enhancer traps or targeted LexA constructs, an insertion into ptc, and seventeen insertions into natural transposons.
View Article and Find Full Text PDFInsulin-like growth factor 1 (IGF-1) is a dichotomous hormone. While beneficial for growth/repair, and regulating muscle hypertrophy, high concentrations of IGF-1 are associated with increased risk of cancer and mortality. Factors thought to mediate IGF-1 include dietary protein and exercise.
View Article and Find Full Text PDFBackground: Insulin-like growth factor-I (IGF-1) is an anabolic hormone that stimulates cell growth and division. The effects of IGF-1 may be beneficial (muscle growth/repair) or detrimental (increased risk of several types of cancer and mortality) for health. Dietary protein and physical activity are thought to be factors that modulate IGF-1.
View Article and Find Full Text PDFContext: Smartphones are being used in a variety of practice settings to measure joint range of motion (ROM). A number of factors can affect the validity of the measurements generated. However, there are no studies examining smartphone-based goniometer applications focusing on measurement variability and error arising from the electromechanical properties of the device being used.
View Article and Find Full Text PDFBackground: Mutations in the PTEN-induced kinase (PINK1) gene located within the PARK6 locus on chromosome 1p35-p36 have recently been identified in patients with recessive early-onset Parkinson disease.
Objective: To assess the prevalence of PINK1 mutations within a series of early- and late-onset Parkinson disease patients living in North America.
Design: All coding exons of the PINK1 gene were sequenced in a series of 289 Parkinson disease patients and 80 neurologically normal control subjects; the mutation frequencies were evaluated in additional controls (100 white and 50 Filipino subjects).
Mutations in DJ-1 are a cause of autosomal recessive parkinsonism. Polymorphism of genes implicated in hereditary forms of parkinsonism may be a predisposing factor in sporadic Parkinson's disease (PD). The authors analyzed whether a polymorphism (g.
View Article and Find Full Text PDFCardiovasc Radiat Med
January 2004
Introduction: Inflammatory and immunological responses of vascular cells are known to play significant roles in atherosclerotic plaque development. Rapamycin with antiinflammatory, immunosuppressive and antiproliferative properties has been shown to reduce neointima formation when coated on stents. This study is designed to test the potential of oral rapamycin to inhibit atherosclerotic plaque development.
View Article and Find Full Text PDFMutations in DJ-1 have been linked to an autosomal recessive form of early-onset parkinsonism. To identify mutations causing Parkinson's disease (PD), we sequenced exons 1 through 7 of DJ-1 in 107 early-onset (age at diagnosis up to 50 years) PD subjects. One subject had a frameshift mutation in the first coding exon and an exon 7 splice mutation both predicted to result in a loss of functional protein.
View Article and Find Full Text PDFHow allelic diversity affects neural mechanisms to produce behavioral variation is largely unknown. The elevated plus maze, consisting of open and closed arms, has been used as a model of behavioral variation in rodent exploration. Under dim illumination the nature of the sensory stimuli that influence arm choice is uncertain.
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