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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
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Filename: models/Detail_model.php
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File: /var/www/html/application/models/Detail_model.php
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Function: strpos
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Function: insertAPISummary
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Function: formatAIDetailSummary
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Fragile sites are hot spots for sister chromatid exchanges, translocations, deletions, complex rearrangements, and gene amplification. It has been hypothesized that rearrangements at fragile sites derive from unreplicated regions resulting from stalled forks that escape the ATR replication checkpoint. In the present study, we investigated the role of the Claspin (CLSPN) gene, which codes for an adaptor protein in the ATR pathway, during DNA replication stress in human cells. We show that the inhibition of the CLSPN gene leads to both genome instability and fragile site expression. Following aphidicolin treatment, we found a transient increase of Claspin synthesis due to its requirement to checkpoint activation. However, Claspin synthesis decreased after a prolonged aphidicolin treatment. We propose that CLSPN modulation, following an extreme replication block, allows rare cells to escape checkpoint mechanisms and enter mitosis with a defect in genome assembly. Our observations provide the basis for a better understanding of cell cycle checkpoints deregulation in cancer.
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http://dx.doi.org/10.1002/gcc.20710 | DOI Listing |
Sci Total Environ
December 2024
School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Australia; Evolution and Ecology Research Centre, UNSW Sydney, Australia. Electronic address:
Life at Robinson Ridge, located in the Windmill Islands region of East Antarctica, is susceptible to a changing climate. At this site, responses of the vegetation communities and moss-beds have been well researched, but corresponding information for microbial counterparts is still lacking. To bridge this knowledge gap, we established baseline data for monitoring the environmental drivers shaping the soil microbial community on the local 'hillslope' scale.
View Article and Find Full Text PDFCurr Opin Cell Biol
December 2024
School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK. Electronic address:
Whilst DNA encodes our genetic blueprint as individual nucleobases, as well as epigenetic annotations in the form of biochemical marks, it also carries an extra layer of topological information -, the local over or underwinding of the double helix, known as DNA supercoiling. Supercoiling is a fundamental property of DNA that can be viewed as "topological epigenetics": it stores energy and structural information, and is tightly linked to fundamental processes; however, its quantification and study, by experiments and modelling alike, is challenging. We review experimental and simulation techniques to study supercoiling and its partition into twist and writhe, especially in the context of chromatin.
View Article and Find Full Text PDFNAR Mol Med
October 2024
Program of Genetics and Genome Biology, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, Toronto, M5G 0A4, Canada.
The hyper-unstable Chr9p21 locus, harbouring the interferon gene cluster, oncogenes and , is linked to multiple diseases. (GGGGCC)n expansions (Exp) are associated with incompletely penetrant amyotrophic lateral sclerosis, frontotemporal dementia and autoimmune disorders. Exp patients display hyperactive cGAS-STING-linked interferon immune and DNA damage responses, but the source of immunostimulatory or damaged DNA is unknown.
View Article and Find Full Text PDFSpine Surg Relat Res
November 2024
Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan.
Introduction: Minimally invasive surgical treatment of myelopathy caused by central thoracic disc herniation (TDH) is challenging to carry out because reaching the herniation site is difficult and the thoracic spinal cord is fragile. In this study, using the posterior-lateral approach for central TDH with myelopathy, we present a novel procedure of transcostal microendoscopic discectomy (TCMED).
Technical Note: The patient was operated in a prone position under general anesthesia.
Soft Robot
December 2024
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China.
Fragile fruit uploading and packaging are labor-intensive and time-consuming steps in postharvest industry. With the aging of the global population, it is supposed to develop robotic grasping systems to replace manual labor. However, damage-less grasping of fragile fruit is the key problem in robotization.
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