Results 121 to 130 of about 30,655 (265)

Receptor activation by human C5a des Arg74 but not intact C5a is dependent on an interaction between Glu199 of the receptor and Lys68 of the ligand

, 1999
Despite the expression of only one type of receptor, there is great variation in the ability of different cell types to discriminate between C5a and its more stable metabolite, C5a des Arg74. The mechanism that underlies this phenomenon is not understood
Monk, Peter N., Crass, Torsten, Pease, James E., Cain, Stuart A.; id_orcid, Bautsch, Wilfried   +4 more
core   +1 more source

Inflammatory and Immunological Basis of Periodontal Diseases

Journal of Periodontal Research, EarlyView.
The periodontal lesion emerges as an evolving immunological battlefield, where host–microbiome interactions, dysregulated immune responses, fragile resolution mechanisms, and inflammophilic dysbiosis converge to shift the balance from homeostasis to unrestrained tissue destruction.
Giacomo Baima, Marion Arce, Mario Romandini, Thomas Van Dyke   +3 more
wiley   +1 more source

Inhibition of C5a-induced neutrophil chemotaxis and macrophage cytokine production In vitro by a new C5a receptor antagonist

, 2000
A cyclic peptide, Phe-[Orn-Pro-D-Cyclohexylalanine-Trp-Arg] (F-[OPdChaWR]), was recently shown in vitro to antagonise the binding of C5a to its receptor (CD88) on human polymorphonuclear leukocytes (PMNs) and in vivo to inhibit the neutropenia associated
Fairlie, DP, Stephen M Taylor, Bignold, LP, David R Haynes, Fairlie, D., Hutchens, MJ, Harkin, DG, Taylor, S., Haynes, DR, Taylor, SM, Haynes, D., Harkin, D., Leon P Bignold, Bignold, L., Hutchens, M., Damien G Harkin, Martin J Hutchens, David P Fairlie   +17 more
core   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

The Oral‐Gut Axis: Bidirectional Interactions Between Microbiome and Diseases

Journal of Periodontal Research, EarlyView.
This study aims to summarize the mechanisms underlying ectopic colonization of the gut by oral pathobionts and the microbial and host factors that regulate this process. ABSTRACT Increased colonization of typically oral microorganisms is frequently observed in the gut mucosa or lumen of individuals with gastrointestinal disorders, including patients ...
Shinya Ebihara, Nobuhiko Kamada
wiley   +1 more source

Complement C5a receptors in the pituitary gland: expression and function

, 2008
Communication between the immune and endocrine system is important for the control of inflammation that is primarily mediated through the hypothalamic–pituitary–adrenal axis.
Francis, Karen, Monk, Peter N., Ham, Jack, Lewis, Barbara Mary   +3 more
core   +1 more source

Aseptic meningitis due to intravenous immunoglobulin therapy (IVIG) in therapy‐refractory pyoderma gangraenosum

JDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Katharina A. Kälber, Knut Schäkel, Alexander Enk, Julia K. Winkler   +3 more
wiley   +1 more source

Periodontitis and rheumatoid arthritis—Global efforts to untangle two complex diseases

Periodontology 2000, EarlyView.
Abstract Understanding the impact of oral health on rheumatoid arthritis (RA) will inform how best to manage patients with both periodontitis and RA. This review seeks to provide an update on interventional and mechanistic investigations, including a brief summary of European Research programs investigating the link between periodontitis and RA. Recent
Isabel Lopez‐Oliva, Jennifer Malcolm, Shauna Culshaw   +2 more
wiley   +1 more source

Responses of isolated pulmonary arteries to the C5a anaphylatoxin

, 1990
The anaphylatoxin C5a possesses spasmogenic activity in smooth muscle tissues. In this study, we examined the effect of C5a on isolated rabbit pulmonary artery (PA) ring segments under a variety of experimental conditions.
D. E. Van Epps, W. P. Reed, R. E. Crowell   +2 more
core   +1 more source

Impact of systemic diseases on periodontal remodeling: Mechanisms, mediators, and clinical relevance

Periodontology 2000, EarlyView.
Abstract Background Periodontal remodeling is a continuous, adaptive process essential for maintaining the structural and functional integrity of periodontal tissues. While external factors such as bacterial biofilm, excessive forces, and poor oral hygiene are recognized triggers of periodontal pathologies, they do not fully explain their persistent ...
Michael Wolf, Ulrike Schulze‐Späte, Thomas Van Dyke, Stefan Wolfart, Thomas Dietrich, Alberto Ortiz, Zhuojun Wu, Joachim Jankowski   +7 more
wiley   +1 more source