Results 31 to 40 of about 29,526 (256)

Phase I, randomized, observer-blind, placebo-controlled studies to evaluate the safety, reactogenicity and immunogenicity of an investigational non-typeable Haemophilus influenzae (NTHi) protein vaccine in adults [PDF]

open access: yes, 2016
Background: Non-typeable Haemophilus influenzae (NTHi) is a major cause of various respiratory diseases. The development of an effective vaccine against NTHi mandates new approaches beyond conjugated vaccines as this opportunistic bacterium is non ...
Aris, Emmanuel   +7 more
core   +2 more sources

The role of the host—Neutrophil biology

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple   +4 more
wiley   +1 more source

Immunosenescence and Its Hallmarks: How to Oppose Aging Strategically? A Review of Potential Options for Therapeutic Intervention

open access: yesFrontiers in Immunology, 2019
Aging is accompanied by remodeling of the immune system. With time, this leads to a decline in immune efficacy, resulting in increased vulnerability to infectious diseases, diminished responses to vaccination, and a susceptibility to age-related ...
Anna Aiello   +9 more
doaj   +1 more source

The Role of Matrix Metalloproteinases (MMP-2 and MMP-9) in Ageing and Longevity: Focus on Sicilian Long-Living Individuals (LLIs)

open access: yesMediators of Inflammation, 2020
Extracellular matrix metalloproteinases (MMPs) are a group of proteins that activate substrates by enzymatic cleavage and, on the basis of their activities, have been demonstrated to play a role in ageing.
Patrizia Cancemi   +10 more
doaj   +1 more source

Immunosenescence of ageing [PDF]

open access: yesThe Journal of Pathology, 2007
AbstractAgeing is a complex process that negatively impacts the development of the immune system and its ability to function. The mechanisms that underlie these age‐related defects are broad and range from defects in the haematopoietic bone marrow to defects in peripheral lymphocyte migration, maturation and function.
A L, Gruver, L L, Hudson, G D, Sempowski
openaire   +2 more sources

Association of Retinal Vascular Caliber and Age-Related Macular Degeneration in Patients With the Acquired Immunodeficiency Syndrome. [PDF]

open access: yes, 2018
PurposeTo evaluate the relationship between retinal vascular caliber and AMD in patients with AIDS.MethodsParticipants enrolled in the Longitudinal Study of the Ocular Complications of AIDS had retinal photographs taken at enrollment.
Danis, Ronald P   +4 more
core   +1 more source

Immunosenescence and cancer [PDF]

open access: yesCritical Reviews in Oncology/Hematology, 2010
Age is a major risk factor for many cancers. Although this is usually viewed in the context of the cell biology, we argue here that age-associated changes to immunity may also contribute to the age-associated increasing incidence of most cancers. This is because cancers are immunogenic (at least initially), and the immune system can and does protect ...
Graham, Pawelec   +2 more
openaire   +2 more sources

Evolution of the G+C content frontier in the rat cytomegalovirus genome [PDF]

open access: yes, 2008
Within the 230138 bp of the rat cytomegalovirus (RCMV) genome, the G+C content changes abruptly at position 142644, constituting a G+C content frontier. To the left of this point, overall G+C content is 69.2%, and to the right it is only 47.6%.
Gatherer, Derek
core   +3 more sources

Bone marrow senescence and the microenvironment of hematological malignancies [PDF]

open access: yes, 2020
Senescence is the irreversible arrest of cell proliferation that has now been shown to play an important role in both health and disease. With increasing age senescent cells accumulate throughout the body, including the bone marrow and this has been ...
Bowles, Kristian M.   +3 more
core   +1 more source

Defective interfering virus protects elderly mice from influenza [PDF]

open access: yes, 2011
Background: We have identified and characterised a defective-interfering (DI) influenza A virus particles containing a highly deleted segment 1 RNA that has broad-spectrum antiviral activity.
Scott, P. D. (Paul D.)   +4 more
core   +3 more sources

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