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Cryo-EM structure of the conjugation H-pilus reveals the cyclic nature of the TrhA pilin.
bioRxiv
December 2024
Rutherford Appleton Laboratory, Research Complex at Harwell, Didcot, Oxfordshire, UK.
Conjugation, the major driver of the spread of antimicrobial resistance genes, relies on a conjugation pilus for DNA transfer. Conjugative pili, such as the F-pilus, are dynamic tubular structures, composed of a polymerized pilin, that mediate the initial donor-recipient interactions, a process known as mating pair formation (MPF). IncH are low-copy-number plasmids, traditionally considered broad host range, which are found in bacteria infecting both humans and animals.
View Article and Find Full Text PDFRenal Tubular Epithelial Cell-Derived hsa_circ_0008925 From Urine Is Related to Chronic Renal Fibrosis.
J Cell Mol Med
January 2025
Department of Nephrology, Yi Ji Shan Hospital Affiliated to Wan Nan Medical College, Wuhu, Anhui, China.
Renal fibrosis (RF) is a crucial pathological factor in the progression of chronic kidney disease (CKD) to end-stage renal failure, and accurate and noninvasive assays to monitor the progression of renal fibrosis are needed. Circular RNAs (circRNAs) are noncoding RNAs that can be used as diagnostic biomarkers and therapeutic targets for human diseases. In this study, we analysed the expression of hsa_circ_0008925 in human urinary renal tubular cells and investigated its role in renal fibrosis.
View Article and Find Full Text PDFRole of TGF-β1/Smad3 signalling pathway in renal tubulointerstitial fibrosis and renal damage in elderly rats with isolated systolic hypertension induced by increased pulse pressure.
Acta Cardiol
January 2025
The Cadre Medical Department, Guizhou Provincial People's Hospital, Guiyang, China.
Objective: Elevated systolic blood pressure and increased pulse pressure are closely associated with renal damage; however, the exact mechanism remains unclear. Therefore, we investigated the effects of increased pulse pressure on tubulointerstitial fibrosis and renal damage in elderly rats with isolated systolic hypertension (ISH). Additionally, the role of renal tubular epithelial-mesenchymal transition (EMT) and its upstream signalling pathways were elucidated.
View Article and Find Full Text PDFOdontogenic exosomes simulating the developmental microenvironment promote complete regeneration of pulp-dentin complex in vivo.
J Adv Res
January 2025
Center of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China; School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, People's Republic of China. Electronic address:
Introduction: Establishing an optimized regenerative microenvironment for pulp-dentin complex engineering has become increasingly critical. Recently, exosomes have emerged as favorable biomimetic nanotherapeutic tools to simulate the developmental microenvironment and facilitate tissue regeneration.
Objectives: This study aimed to elucidate the multifaceted roles of exosomes from human dental pulp stem cells (DPSCs) that initiated odontogenic differentiation while sustaining mesenchymal stem cell (MSC) characteristics in odontogenesis, angiogenesis, and neurogenesis during pulp-dentin complex regeneration.
Etiological and histomorphological studies on early chick mortality in broiler chicken in Kashmir, India.
Open Vet J
November 2024
Veterinary Parasitology, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India.
Background: Early chick mortality (ECM) is one of the most important problems of the poultry industry that causes severe economic losses to the farmers. The chick mortality varies in different geographical locations and its etiological factor also varies.
Aim: The aim of the present work was to isolate and identify various etiological agents responsible for causing ECM in broilers, and study the overall occurrence and pathology of various disease conditions responsible for causing ECM in broilers.
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