Intra Hemocoelic Injection
Intra Hemocoelic Injection - Related Videos
08:28
Zebrafish Brain Ventricle Injection
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Cited by 72 •
2009
After neural tube formation, the neuroepithelium constricts and folds while the tube fills with embryonic cerebrospinal fluid (eCSF) to form the embryonic brain ventricles. We developed this ventricle injection technique to better visualize the fluid filled space in contrast to the neuroepithelial shape in a live embryo.
03:45
Intraductal Injection: Delivering Injection Mix into the Ducts of the Mouse Mammary Gland
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2023
This video describes an intraductal injection technique where we deliver injection mix into the ducts of mouse mammary glands.
03:48
Mouse Bladder Wall Injection
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Cited by 34 •
2011
Mouse bladder wall injection is a useful approach to orthotopically study bladder stem cell and cancer biology. This delicate microsurgical method can be mastered with careful technique and practice.
10:28
An Injectable and Drug-loaded Supramolecular Hydrogel for Local Catheter Injection into the Pig Heart
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Cited by 21 •
2015
Supramolecular hydrogelators based on ureido-pyrimidinones allow full control over the macroscopic gel properties and the sol–gel switching behavior using pH. Here, we present a protocol for formulating and injecting such a supramolecular hydrogelator via a catheter delivery system for local delivery directly in relevant areas in the pig heart.
09:19
Intraperitoneal Injection into Adult Zebrafish
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Cited by 238 •
2010
We demonstrate intraperitoneal injection into adult zebrafish. We use a 10 μl NanoFil microsyringe controlled by a Micro4 controller and UltraMicroPump III. This demonstration includes the use of cold water as an anesthetic.
FAQs
The key advantage is controlled access to the internal immune environment. By bypassing external barriers and the gut, the injected material reaches the hemolymph without relying on uptake through those routes. This makes exposure more consistent for experiments that compare host responses to microorganisms, immune elicitors, drugs, or other test substances.
Direct placement in the hemolymph can produce rapid distribution through the body cavity, which helps connect the initial challenge with subsequent immune measurements. Researchers can then examine hemocyte activity, immune gene expression, microbial burden, or mortality as outcomes of the same experimental exposure. The approach therefore supports mechanistic links between challenge and defense.
Standardizing both dose and exposure is central to interpreting results from this technique. When the delivered amount and challenge conditions are controlled, differences in survival, microbial burden, or immune activity can be related more directly to the test substance or microorganism. This is especially useful when comparing pathogen virulence or antimicrobial responses across experimental groups.
A basic workflow uses a fine needle to penetrate the cuticle and deposit the selected material into the hemolymph. The study then follows the response under defined challenge conditions and records relevant endpoints, such as immune gene expression or mortality. This sequence links a known experimental input with measurable host or infection outcomes.
The method accommodates microorganisms, immune elicitors, drugs, and other test substances, so the injected material can be matched to the research question. A microorganism can support infection or virulence studies, whereas an immune elicitor or drug can be used to examine antimicrobial responses and host defense. The material is delivered directly into hemolymph for assessment.
In immunology and infection research, Intra Hemocoelic Injection helps investigators test how invertebrate hosts respond to controlled challenges. Measurements of hemocyte activity and immune gene expression describe defense activation, while microbial burden and survival indicate infection-related outcomes. Together, these readouts can relate pathogen exposure or treatment to immune mechanisms and experimental survival.