Results 71 to 80 of about 18,572 (178)

Porphyromonas gingivalis fimbriae

Journal of Oral Microbiology, 2013
Marginal periodontitis is not a homogeneous disease but is rather influenced by an intricate set of host susceptibility differences as well as diversities in virulence among the harbored organisms. It is likely that clonal heterogeneity of subpopulations
Morten Enersen, Kazuhiko Nakano, Atsuo Amano   +2 more
doaj   +1 more source

Random Mutagenesis in Porphyromonas gingivalis Enables Isolation of Mutants With Enhanced Secreted Protease Activity

Molecular Oral Microbiology, EarlyView.
ABSTRACT Porphyromonas gingivalis is a key pathogen in periodontitis, with secreted proteases as major virulence factors. We developed a screening method to generate and identify P. gingivalis mutants with elevated protease activity. Mutations were induced using the mutagens 2,6‐diaminopurine (2,6‐DAP) or ethyl methanesulfonate (EMS), and the ...
Takeru Nakabayashi, Satoshi Yuhara, Kosei Tanaka   +2 more
wiley   +1 more source

Sialic acid and N-acetylglucosamine Regulate type 1 Fimbriae Synthesis

Microbiology Spectrum, 2015
ABSTRACT Type 1 fimbriae of E. coli , a chaperon-usher bacterial adhesin, are synthesized by the majority of strains of the bacterium. Although frequently produced by commensal strains, the adhesin is nevertheless a virulence factor in Extraintestinal Pathogenic E. coli (ExPEC). The
openaire   +2 more sources

Detecting TP53 mutations in paired liquid and tissue biopsies from patients with high‐grade serous ovarian carcinoma

International Journal of Cancer, Volume 158, Issue 8, Page 2043-2050, 15 April 2026.
What's New? High‐grade serous ovarian carcinoma is often diagnosed at advanced stages due to non‐specific symptoms and the lack of reliable screening methods. This proof‐of‐concept study introduces a novel TP53 mutation panel using unique molecular identifier‐based next‐generation sequencing for sensitive detection of high‐grade serous ovarian ...
Amanda Olsson Widjaja, Peter Micallef, Maria Lycke, Tobias Österlund, Manuel Luna Santamaría, Julia Hedlund Lindberg, Therese Carlsson, Ulf Gyllensten, Anders Ståhlberg, Benjamin Ulfenborg, Anna Linder, Karin Sundfeldt   +11 more
wiley   +1 more source

A Longitudinal Study of Children's Hippocampal Development: Investigating Maternal Physical Activity, Depression, and Education

Developmental Neurobiology, Volume 86, Issue 2, April 2026.
ABSTRACT The developing hippocampus is particularly sensitive to early environmental influences, including during pregnancy. This longitudinal neuroimaging study examined associations between prenatal maternal physical activity and depression, maternal education, and hippocampal development from early childhood to early adolescence.
Arash Aghamohammadi‐Sereshki, Jess E. Reynolds, Merv Singh, Jamie Roeske, Rhonda C. Bell, Laura Forbes, Gerald F. Giesbrecht, Nicole Letourneau, Deborah Dewey, Catherine Lebel   +9 more
wiley   +1 more source

Activation of the NLRP3 Inflammasome Pathway by Uropathogenic Escherichia coli Is Virulence Factor-Dependent and Influences Colonization of Bladder Epithelial Cells

Frontiers in Cellular and Infection Microbiology, 2018
The NLRP3 inflammasome and IL-1β release have recently been suggested to be important for the progression of urinary tract infection (UTI). However, much is still unknown regarding the interaction of UPEC and the NLRP3 inflammasome.
Isak Demirel, Isak Demirel, Alexander Persson, Alexander Persson, Annelie Brauner, Eva Särndahl, Eva Särndahl, Robert Kruse, Robert Kruse, Robert Kruse, Katarina Persson, Katarina Persson   +11 more
doaj   +1 more source

Taurocholic Acid Is Associated With Disturbed Functional Connectivity in the Hippocampus of Patients With Depression

Advanced Science, Volume 13, Issue 13, 3 March 2026.
This study identifies elevated taurocholic acid (TCA) in Major Depressive Disorder patients. Gut microbiome‐associated TCA impairs hippocampal neurogenesis, triggers microglia activation, and elicits depression‐like behavior in mice via the S1PR2. In patients, functional neuroimaging reveals that serum TCA levels correlate with altered functional ...
Xiaoying Cai, Taipeng Sun, Mengzhen Feng, Gang Chen, Junchi Zhou, Hong Zhuang, Dan Wang, Ying Chen, Zhen Cheng, Zhi Xu, Xiao Zheng, Xueli Zhang, Yonggui Yuan   +12 more
wiley   +1 more source

Phenotypic Expression of Type 1 Klebsiella pneumoniae Fimbriae in Escherichia coli HB101

مجلة مركز بحوث التقنيات الاحيائية, 2011
Four selected isolates of K. pneumoniae subsp. pneumoniae were tested for adhesion and the results revealed that isolates MK20, MK1, MK2, MK6 displayed adhesive capability with means (76.25 ± 6.0),(75.88 ± 5.13), (69.83 ± 8.43), (27.4±4.65) bacteria ...
Ehab D. Selman, Subhi J. Hamza, Meelad A. Al-Nasiri   +2 more
doaj   +1 more source

Anatomical Progression of Neuropathology in FTLD‐TDP Type C and Linkage to Annexin A11

Annals of Neurology, Volume 99, Issue 3, Page 639-655, March 2026.
Objective Frontotemporal lobar degenerations (FTLD)‐TDP type C (TDP‐C) is distinguished from other FTLD‐TDP subtypes by 3 unique features: (1) invariable onset in the anterior temporal lobe (ATL), (2) phosphorylated TDP‐43 (pTDP) neurites in cortex, and (3) colocalization of all pTDP deposits with annexin A11 (ANXA11).
Allegra Kawles, Caroline Nelson, Ivan Ayala, Elena Barbieri, Rudolph Castellani, Changiz Geula, Tamar Gefen, M. Marsel Mesulam   +7 more
wiley   +1 more source

Engineered Probiotics: The Next‐Generation Therapeutics to Combat Antibiotic‐Resistant Bacterial Infections

Food Frontiers, Volume 7, Issue 2, March 2026.
Engineered probiotics secretes fusion proteins which potentially neutralized the toxins secreted by other microbial communities. ABSTRACT On a global scale, the escalating burden of infectious diseases, predominantly attributed to bacterial pathogens, especially drug‐resistant strains, has progressed into a critical concern for clinical management and ...
Indu Singh, Raz Abdulqadir, Indira Kumari Verma, Yashika Awasthi, Arun Ratn, Juhi Sharma, Manmeet Rawat, Megh Singh Dhakad, Jasbir Dalal, Yash Gupta, Bhisham Narayan Singh, Divakar Sharma   +11 more
wiley   +1 more source