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LPS Acute Response Models

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General Introduction

Lipopolysaccharide (LPS), a structural part of the outer membrane of Gram-negative bacteria, is one of the most effective stimulators of the immune system and has been widely applied as an experimental model for bacterial infection.

Acute phase response (APR) is a group of physiologic processes occurring soon after the onset of infection, trauma, inflammatory processes, and some malignant conditions. The most prominent change is a dramatic increase of acute phase proteins in the serum, especially C-reactive protein. Also seen are fever, increased vascular permeability, and a variety of metabolic and pathologic changes.

Models of acute response to LPS challenge can be used to investigate the effect of targeting mechanisms related to neutrophil recruitment and mediator release, such as acute bacterial infection, acute inflammation, adult respiratory distress syndrome (ARDS), cystic fibrosis (CF) and chronic obstructive pulmonary disease (COPD).

LPS Acute Response Models Provided by Creative Animodel

Different types of animals can be used to establish acute response model by LPS induced, e.g. mice, rats, rabbits, and pigs. In general, animals need to be injected intraperitoneally (i.p.) with a dose of LPS to develop acute phase response (mice and rats can be exposed to an airway of LPS via the intranasal route to induce acute response). But the selected E. coli serotype and LPS dose, the duration and route of administration (ROA) are important variables to these models established.

Creative Animodel provides well-tailored LPS acute response models according to customers’ needs. A comprehensive portfolio of evaluations can also be conducted, including but not limited to:
• Total specific IgE levels in serum (ELISA)
• Synthesized acute phase proteins (APPs) in the liver (ELISA)
• TNFα, MCP-1, IL-6, IL-11 and IL-13 transcription levels (qRT-PCR)

Creative Animodel has been devoted to presenting world-class disease models and one-stop research services to our global clients for many years. In addition to LPS acute response models for inflammation disease, we are also experienced in other disease models, such as neurological disease, cardiovascular and metabolic disorders, liver disease, urogenital disease, and renal disease. Please feel free to contact us for further discussions.

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Creative Animodel

Creative Animodel is a world's leading commercial provider of custom animal model services. We offer top-quality services at unbeatable prices. Our customer service representatives are available 24 hours a day, from Monday to Sunday.

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