Hemolymph Perfusion
Hemolymph Perfusion - Related Videos
02:01
Cuticle Disruption: A Method to Collect Hemolymph from Drosophila Larvae
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2023
The Drosophila hemolymph serves as both blood and interstitial fluid, circulating throughout the body during the larva and adult stages. This video describes a protocol to collect larval hemolymph in order to quantify the circulating cells.
05:52
Insulin Injection and Hemolymph Extraction to Measure Insulin Sensitivity in Adult Drosophila melanogaster
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Cited by 16 •
2011
Conserved insulin signaling pathways found in the fruit fly Drosophila melanogaster make this organism a potential tool for modeling metabolic disorders including type II diabetes. To this end, it is critical to establish physiological assays to effectively measure systemic insulin action in peripheral glucose disposal in the adult fly.
08:42
Methods for Comparing Nutrients in Beebread Made by Africanized and European Honey Bees and the Effects on Hemolymph Protein Titers
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Cited by 15 •
2015
Here are methods to quantify nutrients in pollen before and after its conversion to beebread by two subspecies of honeybees. We describe techniques to measure beebread consumption and resulting protein titers in both subspecies.
04:44
Antegrade Perfusion Model: An Ex Vivo Technique to Perfuse Isolated Mouse Heart
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2025
This video describes an antegrade perfusion technique of an isolated mouse heart during which a perfusate is injected through the left ventricle, and eventually, it perfuses the entire myocardium. This method can be used to isolate cardiomyocytes from murine models and generate decellularized hearts for further downstream applications.
03:44
Langendorff Retrograde Heart Perfusion: An Ex Vivo Technique to Perfuse Isolated Mouse Heart
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2025
In this video, we perform Langendorff retrograde perfusion of an isolated mouse heart. During the procedure, the cardiac activity of the heart is maintained by perfusing it retrogradely with a perfusion solution via the coronary arteries using a cannula inserted into the ascending aorta. The model is used to study the cardiac pathophysiology of the heart.
FAQs
In arthropods, circulation is driven by the dorsal vessel together with body movements. Hemolymph is propelled through the hemocoel rather than confined to a closed network of vessels, allowing it to contact organs directly. This arrangement makes perfusion relevant to immune studies because circulating hemocytes, nutrients, signaling molecules, and immune factors can reach multiple tissues.
Because hemocytes are carried in hemolymph, perfusion can influence where these immune cells are sampled or observed and how they are associated with tissues. Collecting hemolymph after controlled movement or exchange supports cellular analysis, while the same approach can help examine hemocyte activity as part of the host response to infection or immune stimulation.
Controlled exchange allows researchers to expose tissues to pathogens or immune stimuli under defined experimental conditions, then examine resulting immune responses. It helps focus analysis on changes associated with a specified challenge rather than on uncontrolled variation in exposure. This makes perfusion useful for comparing cellular or biochemical responses after an experimental infection-related stimulus.
Laboratory perfusion provides controlled movement or exchange of hemolymph through isolated tissues, helping maintain those tissues during analysis. The setup can also permit exposure to pathogens or immune stimuli while the tissue remains under defined experimental conditions. This supports examination of tissue-associated immune responses and links perfusion conditions with measurable cellular or biochemical outcomes.
A collected sample can be examined for cellular and biochemical features of the host response. Analyses can characterize hemocyte activity and immune factors, while infection-focused experiments can investigate pathogen dissemination and responses to immune stimuli. Perfusion therefore links the circulating compartment with measurable cellular and biochemical outcomes that help describe immune activity during infection.
This approach is useful when investigators need to connect hemolymph movement with infection-related changes in tissues or circulating components. Controlled perfusion supports pathogen exposure under defined conditions and can help characterize how infection is distributed through the body, how hemocytes respond, and which broader host responses can be detected through cellular or biochemical analysis.