Underfill State
Underfill State - Related Videos
09:39
A Behavioral Assay to Measure Responsiveness of Zebrafish to Changes in Light Intensities
0 Views •
Cited by 222 •
2008
We developed the Visual-Motor Response to quantitate the motor output of larval zebrafish in response to light increments and decrements. We also examined zebrafish vision mutants, including the no optokinetic response (nrc) mutants, which were thought to be completely blind when tested by another vision assay, the optokinetic reflex.
06:59
Using Next Generation Sequencing to Identify Mutations Associated with Repair of a CAS9-induced Double Strand Break Near the CD4 Promoter
0 Views •
Cited by 5 •
2022
Presented here is sgRNA/CAS9 endonuclease and next-generation sequencing protocol that can be used to identify the mutations associated with double strand break repair near the CD4 promoter.
06:35
An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
0 Views •
Cited by 2 •
2019
The protocol illustrates the use of histopathologic examination and immunohistochemistry to profile the folate receptor beta macrophage and its relationship with the total immune cell infiltrate in temporal artery biopsies in giant cell arteritis.
07:30
Protocol for Producing Three-Dimensional Infrared Video of Freezing in Plants
0 Views •
Cited by 1 •
2018
Here, we present a protocol to image a strawberry plant freezing in 3 dimensions. Two infrared cameras positioned at slightly different angles are used to produce a red-blue anaglyph video to observe the freezing of the plant in 3 dimensions.
09:43
A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments
0 Views •
Cited by 6 •
2014
A fully automated protocol for rodent operant conditioning is proposed. The protocol relies on precise temporal control of behavioral events to investigate the extent to which this control influences neural activity underlying sensorimotor integration and cognitive control experiments.
FAQs
Reduced plasma oncotic pressure weakens the force that helps keep water within the vascular space. Fluid therefore shifts into surrounding tissues, lowering effective arterial filling even though total body water may rise. This mechanism connects abnormal fluid distribution with edema and explains why visible swelling does not necessarily indicate adequate circulating volume.
Increased vascular permeability allows fluid to move more readily through vessel walls and accumulate outside the vascular compartment. The resulting reduction in arterial filling can activate compensatory renal and hormonal responses. In severe inflammation, this shift helps explain how tissue fluid accumulation and impaired effective circulation can occur together.
Reduced arterial filling stimulates the renin–angiotensin–aldosterone system and promotes release of antidiuretic hormone. Together, these responses encourage sodium and water retention by the kidneys. Although retention may support circulating volume, it can also add to total body water while the underlying vascular-to-tissue fluid shift remains present.
Edema reflects fluid accumulation in tissues, whereas effective circulating volume reflects how much blood effectively fills the arterial circulation. In an underfill state, these quantities can change in opposite directions: tissue fluid increases while arterial filling falls. This distinction helps interpret swelling as a problem of fluid distribution rather than simply excess body water.
The mechanism is relevant to nephrotic syndrome, cirrhosis, and severe inflammation. In each setting, fluid can leave the vascular space through changes involving plasma oncotic pressure, vascular permeability, or accumulation outside blood vessels. Recognizing the shared underfill pattern helps connect different diseases to common circulatory and renal responses.
Identifying this state directs attention to both fluid location and compensatory physiology. Investigation can consider whether arterial filling is reduced, whether fluid has shifted into tissues, and whether renal retention pathways are active. This framework helps relate observed edema and fluid imbalance to vascular changes, kidney responses, and the underlying disease process.