scholarly journals Modulation of Expression of Epidermal Langerhans Cell Properties Following in Situ Exposure to Glucocorticosteroids

1983 ◽  
Vol 80 (3) ◽  
pp. 168-171 ◽  
Author(s):  
Brian Berman ◽  
Dennis S. France ◽  
Giorgio P. Martinelli ◽  
Ada Hass
Keyword(s):  
Langerhans Cell ◽  
In Situ Exposure

Multiple biomarker responses in Prochilodus lineatus subjected to short-term in situ exposure to streams from agricultural areas in Southern Brazil

2016 ◽  
Vol 542 ◽  
pp. 44-56 ◽  
Author(s):  
Carlos Eduardo Delfino Vieira ◽  
Patrícia Gomes Costa ◽  
Bruna Lunardelli ◽  
Luciana Fernandes de Oliveira ◽  
Liziara da Costa Cabrera ◽  
...  
Keyword(s):  
Southern Brazil ◽  
Short Term ◽  
Prochilodus Lineatus ◽  
Agricultural Areas ◽  
In Situ Exposure

Vascular permeability alterations induced by arsenic

2004 ◽  
Vol 23 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Shih-Chieh Chen ◽  
Ming-Hsien Tsai ◽  
Hsiu-Jen Wang ◽  
Hsin-Su Yu ◽  
Louis W Chang
Keyword(s):  
Vascular Permeability ◽  
Evans Blue ◽  
Graphite Furnace ◽  
Vascular Leakage ◽  
Arsenic Content ◽  
India Ink ◽  
The Impact ◽  
In Situ Exposure

The impact of arsenic on the integrity of blood vessels in vivo via in situ exposure (local injection) of arsenic was investigated. Vascular permeability changes were evaluated by means of the Evans blue assay and the India ink tracer techniques. Rats were intravenously injected with Evans blue followed by intradermal injections of various doses of sodium arsenite on the back skins of the animals. Evans blue at different time points was extracted and assayed as indices of vascular leakage. Skin at various time point injection sites was sampled for arsenic measurement via graphite furnace atomic absorption spectroscopy. Our time course study with Evans blue technique demonstrated a biphasic pattern of vascular permeability change: an early phase of permeability reduction and a later phase of permeability promotion at all dose levels tested. The India ink tracer technique also demonstrated a time-correlated increase in vascular labelling in the tissues examined, signifying an increase in vascular leakage with time. Moreover, we found that despite an early increase in tissue arsenic content at time of injection, tissue arsenic declined rapidly and returned to near control levels after 30-60 min. Thus, an inverse correlation between tissue arsenic content and the extent of vascular permeability was apparent. This study provides the first demonstration that in situ exposure to arsenic will produce vascular dysfunction (vascular leakage) in vivo.

In situ exposure history modulates the molecular responses to carbamate fungicide Tattoo in bivalve mollusk

Ecotoxicology ◽  
2013 ◽  
Vol 22 (3) ◽  
pp. 433-445 ◽  
Author(s):  
Halina I. Falfushynska ◽  
Lesya L. Gnatyshyna ◽  
Oksana B. Stoliar
Keyword(s):  
Bivalve Mollusk ◽  
Molecular Responses ◽  
Exposure History ◽  
In Situ Exposure

Within-river variation in growth and survival of juvenile freshwater pearl mussels assessed by in situ exposure methods

Hydrobiologia ◽  
2017 ◽  
Vol 810 (1) ◽  
pp. 393-414 ◽  
Author(s):  
Michaela Černá ◽  
Ondřej P. Simon ◽  
Michal Bílý ◽  
Karel Douda ◽  
Bohumil Dort ◽  
...  
Keyword(s):  
Growth And Survival ◽  
Exposure Methods ◽  
In Situ Exposure

Research on the Antifouling Mechanisms of Copper and its Alloys

2009 ◽  
Vol 79-82 ◽  
pp. 2179-2182 ◽  
Author(s):  
Shi De Ma ◽  
Xia Zhao ◽  
Hong Ren Wang ◽  
Ji Zhou Duan
Keyword(s):  
Electrochemical Reaction ◽  
Copper Alloys ◽  
Electrochemical Process ◽  
Toxic Substances ◽  
Biological Factors ◽  
Corrosion Properties ◽  
Biology Process ◽  
Antifouling Ability ◽  
In Situ Exposure

In this paper, the in-situ exposure tests of 15 kinds of copper and its alloys were carried out in seawater at Zhanjiang Harbor for 12 months in order to study their anti-fouling abilities and anti-corrosion properties. In the same way, the in-situ anti-fouling tests of copper and bronze were performed in Qingdao for 8 years. Successively, the anti-fouling properties were analyzed combining with the electrochemical process of copper alloy corrosion and biology process of the adhesion. The chemical, physical and biological factors influencing the fouling properties of copper alloys were also investigated. The results showed that the coppers can equip themselves with antifouling performance by producing some toxic substances during the processes of chemical and electrochemical reaction. In addition, the antifouling ability was proved to relate to the exfoliation effect, which was the result of interaction between stain layer adhesion and spalling force of the attachments.

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