BACKGROUND: Occurrence of resistance against antibioticsand inadequate efficacy of some vaccines necessitates studies ofnatural immunostimulators in aquaculture. Shrimps shell derivedfrom Chitosan can be used as immune stimulators in fish.OBJECTIVES: In this study, the effects of oral administration ofchitosan, derived from shrimp shell, on some immune responsesand disease resistance in Cyprinu...

We exploit a simple model to numerically and analytically investigate the effect of enforcing a time constraint for achieving a system-wide goal during an evolutionary dynamics. This situation is relevant to finding antibody specificities in the adaptive immune response as well as to artificial situations in which an evolutionary dynamics is used to generate a desired capability in a limited nu...

Background & Aims: Dry type localized cutaneous Leishmaniasis due to Leishmania tropica is one of the most prevalent cutaneous parasitic infections in Kerman province. It seems that cellular immune response and the nature of immune inflammatory cells comprising the inflammatory background play a determinant role in this infection. Methods: Skin biopsies of 53 patients with acute(<2 years durati...

background: hepatitis b infection is a major public health problem worldwide. dental students who are frequently in contact with body fluids like blood and saliva are still at high risk for hbv exposure. the aim of this study was to evaluate the effectiveness of hbv vaccine and personal factors associated with serologic evidence of the immune response. methods: a descriptive-cross sectional stu...

JCB • VOLUME 179 • NUMBER 3 • 2007 362 Imaging the immune response Y ou can learn a lot from a picture. Case in point, a new report from Kamal Khanna, Jeffrey McNamara, and Leo Lefrançois (University of Connecticut, Farmington, CT) images T cells as they prepare to fi ght infection. To examine the cell dynamics of an immune response, the researchers used laser scanning microscopy to take 3D sna...

alterations have been found to occur in every component of immune response during an anesthesia and surgery. these alterations represent the body&apos;s general physiological responses and are mainly depended on the extent of surery as well as on blood transfusion. basically, the immune response to an anesthesia and surgery is a beneficial reaction needed in local defences, wound healing, and p...

objective: hepatitis c virus (hcv) is one of the most relevant persistent infections afflicting the human population. control of viral replication in hcv infection has been associated with the cellular component of the host immune response. several mechanisms have been proposed to explain this abnormal immune response, among them an altered activity of regulatory t cells (tregs) being the most ...

in this study, we investigate the immunostimulatory effects of alcoholic extract of the coffee seed on cell-mediated immune response andcyclophosphamide-induced (cp) immunosuppressed mice. the assessment of cellular immune function was carried out by the measurement of delayed-type hypersensitivity (dth) response. according to the literature survey, cyclophosphamide has only suppressing effect ...