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This is the first study reporting droplet digital PCR and quantitative real time PCR for detection of (syn. ), which causes common bunt of wheat and leads to yield losses of 80% in many wheat growing areas worldwide. To establish an accurate, rapid and quantifiable detection method, we tested 100 inter simple sequence repeats (ISSR) primers and obtained a species-specific fragment (515 bp) generated by ISSR 827. Then, a specific 266 bp band for the sequence characterized amplified region (SCAR) marker was produced from . The detection limit reached 50 pg/μL. Based on the SCAR marker, we further developed a higher sensitivity of quantitative real time-polymerase chain reaction (qRT-PCR) with a detection limit of 2.4 fg/μL, and droplet digital PCR (ddPCR) with a detection limit of 0.24 fg/μL. Both methods greatly improved the detection sensitivity of , which will be contribute a lot for quickly and accurately detection of , which causes wheat common bunt.
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http://dx.doi.org/10.3389/fpls.2022.1031611 | DOI Listing |
Front Immunol
September 2025
Division of Rheumatology, Department of Medicine, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
Background: Regulatory T cells (Tregs) are found to be critical for maintaining immune tolerance to self-antigens; however, their status in primary Sjögren's syndrome (pSS) remains unclear. We investigated alterations in the abundance of peripheral Tregs in a large pSS cohort and their implications for patients.
Methods: Levels of CD4+CD25+FOXP3+Treg cells in the peripheral blood of 624 patients with pSS, and 93 healthy controls (HCs) were detected using modified flow cytometry (FCM).
Pract Lab Med
September 2025
Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
Background: Nucleic Acid Amplification Tests (NAAT) remain one of the most reliable methods for pathogen identification. Given the high false-negative rates associated with traditional staining and microscopic examination, the time-consuming nature and low sensitivity of bacterial culture methods, as well as the inability of conventional NAAT to achieve absolute quantification.
Methods: To achieve rapid and quantitative detection of , we selected the 23S rRNA gene as the target for identification and developed a droplet digital PCR detection method.
Clin Transplant Res
September 2025
Department of Laboratory Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Donor-derived cell-free DNA (dd-cfDNA) has emerged as a valuable noninvasive biomarker for detecting allograft injury in solid organ transplantation. It is released into the bloodstream from the transplanted organ as a result of cell injury and immune activation, with baseline levels influenced by organ type, tissue turnover, and posttransplant physiological changes. Several analytical platforms are available, including quantitative polymerase chain reaction (PCR), digital droplet PCR, and next-generation sequencing, each differing in sensitivity, throughput, and reporting format.
View Article and Find Full Text PDFSmall Methods
September 2025
Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea.
While human epidermal growth factor receptor (HER2) has emerged as a tumor-agnostic biomarker, standard HER2 testing for anti-HER2 therapies using immunohistochemistry (IHC) and in situ hybridization (ISH) assays remains subjective, time-consuming, and often inaccurate. To address these limitations, an ultrafast and precise HER2 testing method is developed using Lab-On-An-Array (LOAA) digital real-time PCR (drPCR), a fully automated digital PCR enabling real-time absolute quantification. A multicenter study involving four independent breast cancer cohorts cross-validates the high diagnostic accuracy of drPCR-based HER2 assessment.
View Article and Find Full Text PDFClin Chim Acta
September 2025
Department of Hematology and Blood Banking, School of Allied Medical Sciences, Iran University of Medical, Tehran, Iran. Electronic address:
Acute myeloid leukemia (AML) represents a genetically heterogeneous malignancy, with mutations in the nucleophosmin-1 (NPM1) gene identified as the most prevalent and clinically significant molecular biomarkers. These mutations play a crucial pivotal role in the realms of diagnosis, prognosis, and therapeutic decision-making. Although an ideal measurable residual disease (MRD) test has yet to be developed, there is increasing acknowledgment of the significance of advanced molecular methodologies for monitoring MRD in NPM1-mutated (NPM1) AML.
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