host defense

host defense

The protection an organism is afforded against infections Types 
1. Nonimmunologic–eg, mucocutaneous or integumental barriers, cilia, microvilli; mechanical–eg, urinary outflow, vascular perfusion of tissues; native flora, which 'outcompete' pathogens;.
2. Immunologic–eg, chemotaxis, phagocytosis, immunoglobulins, complement, T cell defense.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Some specific subjects examined are the biochemical activities of the HCV NS5B RNA-dependent RNA polymerase, HCV replicon systems, HCV regulation of host defense, and recombinant vesicular stomatitis virus (VSV).
Antimicrobial proteins play an important role in human host defense. Defensin, chemerin and hepcidin are among antimicrobial proteins.4 Especially hepcidin that among these hormones, is an peptide associated with iron metabolism.
The airway epithelium has a range of properties that contribute to lung defense, including constitutive host defense mechanisms and regulation of airway innate immunity.
Historically, our view of host defense against infection was that we must eliminate pathogens to eradicate the disease.
This evidence substantiates that dietary Zn uptake is important in maintaining homeostasis, proper innate immune balance, and host defense [13].
Lymphopenia is an abnormally low level of lymphocytes, or white blood cells, that manage microbial host defense.
Mucociliary clearance represents a host defense mechanism of airways that can be compromised by various pathologic conditions, such as nasal septal deviation.
These compounds mimic the host defense proteins of the innate immune system, and therefore, have both antibacterial and immunomodulatory properties.
These peptides represent not only an important component of innate host defense against microbial colonization and a link between innate and adaptive immunity, but also form a foundation for the development of new therapeutic agents.