scholarly journals Histological assessment of cellular immune response to the phytohemagglutinin skin test in Brazilian free-tailed bats (Tadarida brasiliensis)

2010 ◽  
Vol 180 (8) ◽  
pp. 1155-1164 ◽  
Author(s):  
Amy S. Turmelle ◽  
James A. Ellison ◽  
Mary T. Mendonça ◽  
Gary F. McCracken
Keyword(s):  
Immune Response ◽  
Skin Test ◽  
Cellular Immune Response ◽  
Tadarida Brasiliensis ◽  
Histological Assessment ◽  
Cellular Immune

scholarly journals Evaluation of cellular immune response in Golden Hamsters experimentally infected with Leishmania donovani comparing with cellular immune response against chicken Red Blood Cells.

2012 ◽  
Vol 9 (1) ◽  
pp. 23-30
Author(s):  
Baghdad Science Journal
Keyword(s):  
Immune Response ◽  
Red Blood Cells ◽  
Skin Test ◽  
Blood Cells ◽  
Cellular Immune Response ◽  
Leishmania Donovani ◽  
Cellular Immune ◽  
And Control ◽  
Delayed Type Of Hypersensitivity

The Evaluation of the immune response in Golden Hamsters experimentally infected with Leishmania donovani was determined in this study, particularly, the cellular immune response. Follow up has maintained to determine the Delayed Type of Hypersensitivity using skin test both in infected and control lab animals. Chicken red blood cells were used as a parameter to evaluate the immune system; they are dull and have the ability of immunization. Two concentrations of chicken R.B.C were examined to determine which gives the higher titration in Hamsters and those were 1.5 X 109 cell/ml and 3 X 109 cell/ml , the second concentration gave the maximum titration where then used in this work. After sensitization with Chicken R.B.C for both infected and control groups, delayed type of hypersensitivity has been used against Leishmania donovani antigen and 4 days of follow up were adopted and they were (14, 30, 60, 90) day after infection. Results showed that skin test against both antigens ( L.donovani and chicken R.B.C) was significantly higher than normal at the first day of follow up ( day 14) then gradual decreasing were noticed till the last day of follow up (90). This can indicate that the infection with L.donovani activated the immune response at the beginning of infection, then leads to cellular immune suppression against both L.donovani antigen and chicken R.B.C., so that this immunosuppression is not specific.

scholarly journals Reduced schedule of human anti-rabies immunization with Fuenzalida & Palacios vaccine: additional data

1993 ◽  
Vol 35 (3) ◽  
pp. 281-284 ◽  
Author(s):  
S.R. Favoretto ◽  
M.L. Carrieri ◽  
M.S. Tino ◽  
A. Assis ◽  
C.R. Zanetti ◽  
...  
Keyword(s):  
Immune Response ◽  
Skin Test ◽  
Cellular Immune Response ◽  
Nervous Tissue ◽  
Additional Data ◽  
Cell Mediated Immunity ◽  
Newborn Mice ◽  
Serum Neutralization ◽  
Cellular Immune ◽  
Antibody Levels

It was reevaluated a reduced schedule for anti-rabies post-exposure immunization with newborn mice nervous tissue vaccine (Fuenzalida 8c Palacios) in a group of 30 non exposed volunteers. The vaccine was administered by intramuscular injections on days zero, 2, 4, 16 and 27, in the deltoid area. Antibody levels were determinated by a simplified serum neutralization microtest on days zero, 16 and 37. On days 16 and 37 the antibody levels of the whole group was >0.5 IU/ml and >1.0 IU/ml, respectively. The cell mediated immunity was precociously detected (on day 4) by the delayed type hipersensitivity skin test. Our results show that this reduced schedule elicited an early and effective humoral and cellular immune response. However it is necessary other studies with larger groups of vaccinees in order to obtain definitive conclusion.

scholarly journals Evaluation of Proteus vulgarisfimbriae antigen by delayed type hypersensitivity (DTH)-skin test in rabbits

2011 ◽  
Vol 35 (1) ◽  
pp. 100-106
Author(s):  
Ekram Abbas Abood Al-Samarrae
Keyword(s):  
Immune Response ◽  
Skin Test ◽  
Cellular Immune Response ◽  
Control Site ◽  
Delayed Type Hypersensitivity ◽  
Proteus Vulgaris ◽  
Significant Difference ◽  
Cellular Immune ◽  
And Control

The aim of this study is to evaluate the use of fimbriae antigens for immunization of rabbits against Proteus vulgaris bacteria results showed a higher significant difference (P<0.05) in erythema diameters in the immunized groups in compared with the control. There was no significant difference between both immunized groups 200 μg/ml and 100 μg/ml after 24 hours. Also, a higher significant differences (P<0.05) in the diameter of induration is recorded in both immunized groups compared to control site, a higher significant differences (P<0.05) in the immunized group (100 μg/ml) at the concentration 200 μg/ml compared with 100 and 50 μg/ml after 24 hours, as follow as after 48 hours except significant differences between 200 and 100 μg/ml concentration (P<0.01) and increase induration after 72 hours between both immunized groups; within groups and control site. Conclusion that the fimbrial antigen have the ability to elicit cellular immune response by delayed type hypersensitivity (DTH).

Humoral and cellular immune response to a crude exo-antigen and purified keratinase of Microsporum canis in experimentally infected guinea pigs

1999 ◽  
Vol 37 (2) ◽  
pp. 123-129 ◽  
Author(s):  
B. R. Mignon ◽  
T. Leclipteux ◽  
CH. Focant ◽  
A. J. Nikkels ◽  
G. E. PIErard ◽  
...  
Keyword(s):  
Immune Response ◽  
Cellular Immune Response ◽  
Guinea Pigs ◽  
Microsporum Canis ◽  
Cellular Immune

The humoral and cellular immune response of sheep against Borna disease virus in endemic and non-endemic areas

2004 ◽  
Vol 146 (4) ◽  
pp. 159-172 ◽  
Author(s):  
D. Müller-Doblies ◽  
S. Baumann ◽  
P. Grob ◽  
A. Hülsmeier ◽  
U. Müller-Doblies ◽  
...  
Keyword(s):  
Immune Response ◽  
Disease Virus ◽  
Cellular Immune Response ◽  
Borna Disease Virus ◽  
Endemic Areas ◽  
Cellular Immune ◽  
Borna Disease

Does gamma knife surgery stimulate cellular immune response to metastatic brain tumors? A histopathological and immunohistochemical study

2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 180-184 ◽  
Author(s):  
György T. Szeifert ◽  
Isabelle Salmon ◽  
Sandrine Rorive ◽  
Nicolas Massager ◽  
Daniel Devriendt ◽  
...  
Keyword(s):  
Immune Response ◽  
Brain Tumors ◽  
Gamma Knife ◽  
Cellular Immune Response ◽  
Lymphocytic Infiltration ◽  
Gamma Knife Surgery ◽  
Metastatic Brain Tumors ◽  
Content Type ◽  
Cellular Immune ◽  
Fine Print

Object. The aim of this study was to analyze the cellular immune response and histopathological changes in secondary brain tumors after gamma knife surgery (GKS). Methods. Two hundred ten patients with cerebral metastases underwent GKS. Seven patients underwent subsequent craniotomy for tumor removal between 1 and 33 months after GKS. Four of these patients had one tumor, two patients had two tumors, and one patient had three. Histological and immunohistochemical investigations were performed. In addition to routine H & E and Mallory trichrome staining, immunohistochemical reactions were conducted to characterize the phenotypic nature of the cell population contributing to the tissue immune response to neoplastic deposits after radiosurgery. Light microscopy revealed an intensive lymphocytic infiltration in the parenchyma and stroma of tumor samples obtained in patients in whom surgery was performed over 6 months after GKS. Contrary to this, extensive areas of tissue necrosis with either an absent or scanty lymphoid population were observed in the poorly controlled neoplastic specimens obtained in cases in which surgery was undertaken in patients less than 6 months after GKS. Immunohistochemical characterization demonstrated the predominance of CD3-positive T cells in the lymphoid infiltration. Conclusions. Histopathological findings of the present study are consistent with a cellular immune response of natural killer cells against metastatic brain tumors, presumably stimulated by the ionizing energy of focused radiation.

Sign in / Sign up

Export Citation Format

Share Document