Mycobacterium-specific nonradioactive DNA probes have been tested able to detect mycobacteria in clinical samples (sputum, bronchoalveolar lavage) for 48 hours. The probes sensitivity makes up 1000-10,000 cells. Molecular hybridization confirms the results of DNA-probe diagnostic conclusion of tuberculosis more frequently than the results of standard microbiological tests.
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PLoS One
January 2025
Department of Surgical and Medical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy.
Plant viruses pose a significant threat to global agriculture and require efficient tools for their timely detection. We present AutoPVPrimer, an innovative pipeline that integrates artificial intelligence (AI) and machine learning to accelerate the development of plant virus primers. The pipeline uses Biopython to automatically retrieve different genomic sequences from the NCBI database to increase the robustness of the subsequent primer design.
View Article and Find Full Text PDFAnal Chem
January 2025
School of Chemistry and Chemical Engineering, State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing 211189, China.
PIWI-interacting RNAs (piRNAs) are a class of small noncoding RNAs associated with PIWI proteins within the male germline, and they play significant roles in maintaining genome stability via the modulation of gene expression. The piRNAs are implicated in the progression of various cancers, but the simultaneous monitoring of multiple piRNAs remains a challenge. Herein, we construct a single-molecule biosensor based on polymerization-transcription-mediated target regeneration for the simultaneous one-pot detection of multiple piRNAs.
View Article and Find Full Text PDFClin Epigenetics
January 2025
Center of Oncocytogenomics, Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital and 1st Faculty of Medicine of Charles University in Prague, U Nemocnice 499/2, 128 00, Prague, Czech Republic.
Background: Glioblastoma is the commonest malignant brain tumor and has a very poor prognosis. Reduced expression of the MGMT gene (10q26.3), influenced primarily by the methylation of two differentially methylated regions (DMR1 and DMR2), is associated with a good response to temozolomide treatment.
View Article and Find Full Text PDFAnal Chem
January 2025
School of Chemistry and Chemical Engineering, State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing 211189, China.
Formamidopyrimidine DNA glycosylase (Fpg) and flap endonuclease 1 (FEN1) are essential to sustaining genomic stability and integrity, while the abnormal activities of Fpg and FEN1 may lead to various diseases and cancers. The development of simple methods for simultaneously monitoring Fpg and FEN1 is highly desirable. Herein, we construct a multiple cyclic ligation-promoted exponential recombinase polymerase amplification (RPA) platform for sensitive and simultaneous monitoring of Fpg and FEN1 in cells and clinical tissues.
View Article and Find Full Text PDFJ Vis Exp
January 2025
Institute of Biochemistry and Molecular Biology, Hengyang Medical School, University of South China; National Health Commission Key Laboratory of Birth Defect Research and Preventio, Hunan Provincial Maternal and Child Health Care Hospital;
Both DNA replication and RNA transcription utilize genomic DNA as their template, necessitating spatial and temporal separation of these processes. Conflicts between the replication and transcription machinery, termed transcription-replication conflicts (TRCs), pose a considerable risk to genome stability, a critical factor in cancer development. While several factors regulating these collisions have been identified, pinpointing primary causes remains difficult due to limited tools for direct visualization and clear interpretation.
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